硅胶夹头（002）

内衣（B15269）

Cold roll forming device for U-shaped bolt machining and forming process of cold roll forming device

The invention discloses a cold roll forming device for U-shaped bolt machining, and relates to the technical field of bolt machining, the cold roll forming device comprises an operation table assembly, the operation table assembly comprises a working table top, and an ejection hole is formed in the top of the working table top. When the device is used, the positive and negative motor is started, the output shaft of the positive and negative motor drives the limiting block and the rotating shaft to rotate at the same time, at the moment, the top plate is lifted upwards, so that the top plate can jack up the turning part of the U-shaped bolt body, and the U-shaped bolt body is conveniently disengaged from being clamped with the shaping assembly; by means of the arrangement, when the pull rod drives the discharging rod to move downwards, the U-shaped bolt body can be pulled downwards, the U-shaped bolt body is directly separated from the shaping assembly and is convenient to take down, it ...

Grease lubrication pump with built-in controller for automobile chassis

The invention relates to a grease lubrication pump for an automobile chassis with a built-in controller. The grease lubrication pump comprises a pump body of the grease lubrication pump, an inverted oil tank is fixed to the upper end of the pump body, the pump body comprises a cylindrical annular cavity shell, an oil tank chassis is formed at the top of the cavity shell, a downwards-sunken pump base is formed in the middle of the oil tank chassis, and a shaft sleeve is formed in the middle of the lower end face of the pump base; a disc type motor is fixedly inserted into the pump body cavity shell on the lower side of the oil tank chassis, a rotating shaft of the disc type motor is inserted into the shaft sleeve and connected with an input shaft of the gear pump, and the gear pump is fixedly inserted into the pump base. The grease lubrication pump is compact in structure and small in size, the controller is installed on the pump body of the lubrication pump in a built-in mode, the design ...

Manual cable stripper

The invention discloses a manual cable stripper, and aims to provide a manual cable stripper which can be applied to an aerial cable, realizes stripping of the aerial cable, and is convenient to operate and high in stripping efficiency. The device comprises a driving screw, two threaded sections with opposite spiral directions are arranged on a threaded rod, and insulating holding parts are arranged at the two ends of the driving screw; the cable embracing mechanism comprises a guide rod parallel to the threaded rod and two cable embracing blocks sliding along the guide rod, one threaded section is in threaded connection with one cable embracing block, the other threaded section is in threaded connection with the other cable embracing block, the guide rod is fixed to the insulating holding part, cable embracing grooves are formed in the two opposite side faces of the two cable embracing blocks, and the cable embracing blocks are arranged in the cable embracing grooves. The cable holding ...

AIR VALVE AND LOUDSPEAKER

An air valve and a loudspeaker. The air valve comprises a valve body (11), a valve plate (12) having elasticity, an air inlet hole (13) penetrating through the inner and outer surfaces (11b, 11a) of the valve body (11), and an air outlet hole (14) penetrating through the inner and outer surfaces (12b, 12a) of the valve plate (12); and the valve plate (12) and the valve body (11) are in sealed connection to form an annular sealing zone surrounding the air outlet hole (14) and the air inlet hole (13), the inner surface (11b) of the valve body (11) covers the air outlet hole (14), and/or the inner surface (12b) of the valve plate (12) covers the air inlet hole (13). A loudspeaker is internally provided with an air valve.

SPHERICAL DISPLAY SCREEN-BASED IMAGE PLAYBACK SYSTEM AND METHOD

A spherical display screen-based playback system and method, relating to the field of application of spherical display screens for playback. The method comprises: using an input terminal, the input terminal flattening a virtual reality panoramic image to obtain a planar rectangular image with a 2:1 aspect ratio and outputting same, wherein the virtual reality panoramic image is a three-dimensional spherical image, and the planar rectangular image with a 2:1 aspect ratio is a two-dimensional planar image (S1); and using a display controller communicatively connected to the input terminal, the display controller receiving the planar rectangular image with a 2:1 aspect ratio output by the input terminal, and performing snap-shooting on the planar rectangular image with a 2:1 aspect ratio according to a preset snap-shooting strategy to obtain a virtual reality display image corresponding to a spherical display surface, and the display controller sending the virtual reality display image to ...

SHIPBORNE TRANSFORMER SUBSTATION

A shipborne transformer substation, comprising a high voltage cable inlet/outlet cabinet, a transformer and a low voltage cable inlet/outlet cabinet; a high voltage cable is connected into the high voltage cable inlet/outlet cabinet, and is then led out and enters the transformer; the transformer is connected to the low voltage cable inlet/outlet cabinet via a low voltage cable; the low voltage cable inlet/outlet cabinet is connected to a power distribution cabinet via a low voltage cable; the shipborne transformer substation is also provided with a programmable logic controller (PLC); the PLC is connected to the circuit breakers of the low voltage cable inlet/outlet cabinet and the power distribution cabinet via signal wires, and is also connected to the speed controlled lifting device of a shipborne generator via a signal wire; and the shipborne generator is connected to the power distribution cabinet via a signal wire.

SOUND GENERATING DEVICE AND METHOD OF MANUFACTURING METAL-PLASTIC COMPONENT

The invention provides a sound generating device and a method of manufacturing a metal-plastic component, wherein the former comprises a metal-plastic component comprising a plastic component and a metal insert that combines with the plastic component. The metal insert comprises an oxidized film layer obtained by a metal nanosizing process and disposed on a surface of the metal insert, and a nanopore located at a surface of the oxidized film layer, wherein the nanopore has a pore diameter of 20-1000 nm. A resin composite forming the plastic component in the invention is filled in the nanopore to achieve the goal of tight attachment between the metal insert and the plastic component, facilitating enhancement of an adhesive holding capability of the metal insert, preventing the metal insert from being separated after forming the plastic component by an injection molding process. A length of the metal insert embedded into the plastic component is decreased significantly, and therefore, ultrasonic ...

Flow-adjustable pneumatic lubricating pump for lubricating system

The flow-adjustable pneumatic lubricating pump for the lubricating system comprises an oil tank, a cover plate is fixed to the top of the oil tank, the four corners of the oil tank are fixedly connected with the cover plate through bolt assemblies, a flow-adjustable pneumatic oil supply pump and a liquid level meter are inserted into the oil tank, and the upper portion of the pneumatic oil supply pump and the upper portion of the liquid level meter are fixed to the cover plate. An oil delivery pipe is arranged on the pneumatic oil supply pump, and an oil outlet joint is fixedly connected to the upper end of the oil delivery pipe and penetrates through the cover plate to be screwed and fixed with a lubricating pipe joint; and an oil filling port assembly is inserted and fixed on the cover plate. The pneumatic lubricating pump can realize flow regulation, and can meet the oil supply requirements of different thread spinner mechanical lubricating systems.

LOUDSPEAKER MODULE

Provided is a loudspeaker module, comprising a peripheral frame and loudspeaker monomers contained inside of the peripheral frame, wherein the peripheral frame is provided thereon with a sounding hole being in communication with the outside; a front acoustic cavity in communication with the sounding hole is formed between each of the loudspeaker monomers and the peripheral frame; a rear acoustic cavity is formed between one side of each of the loudspeaker monomers which deviates from the front acoustic cavity and the peripheral frame; the number of the loudspeaker monomers is more than one; and the rear acoustic cavity is divided into a plurality of sub-rear acoustic cavities of which the number is the same as that of the loudspeaker monomers, wherein each of the loudspeaker monomers corresponds to one sub-rear acoustic cavity, and the loudspeaker monomers are in communication with the corresponding sub-rear acoustic cavities. This structure facilitates the adjustment of the acoustic performance ...

LED DISPLAY SCREEN IN IGLOO-SHAPED ARRANGEMENT

An LED display screen in an igloo-shaped arrangement. The LED display screen is a spherical display screen (1); a plurality of display unit plates (10) are distributed respectively along a latitudinal direction (LD) and a warp-wise direction (WD) by taking an equator line (EL) of the spherical display screen (1) as a dividing line; a plurality of rows of fan-shaped display unit plates (10) are uniformly arranged in the latitudinal direction (LD); and the number of the arranged display unit plates (10) is reduced stepwise from the equator line (EL) to directions of the north and south poles of the spherical display screen (1); in the latitudinal direction (LD), the display unit plates (10) in every two rows which are symmetrical to each other and take the equator line (EL) as a symmetry axis are symmetrically distributed; the locations of the north pole (N) and the south pole (S) of the spherical display screen (1) are each provided with two semi-circular display unit plates (10); and a ...

SOUNDER MODULE AND ASSEMBLY METHOD THEREOF

A sounder module, comprising a sounder unit and a casing housing the sounder unit; the sounder unit comprises a magnetic circuit system; the magnetic circuit system comprises a magnetic conductive plate, a magnet and a magnet yoke (33) sequentially assembled; moreover, the casing of the sounder module forms a frame for fixing the magnetic circuit system of the sounder; and the magnetic circuit system and the casing are injection molded to form an integrated structure, thus increasing the internal size of the sounder unit, simplifying product design, and facilitating the miniaturization design of the sounder module. Also provided is an assembly method, the casing and the magnetic circuit system being assembled as follows: a) firstly, sequentially assembling the magnetic conductive plate, the magnet and the magnet yoke (33); b) placing the assembled magnetic conductive plate, the magnet and the magnet yoke in an injection molding jig forming the casing; and c) adding injection molding material ...

Loudspeaker module

... 本实用新型公开了一种扬声器模组，包括扣合在一起并形成内腔的上壳、下壳，还包括位于内腔中的振动系统和磁路系统，所述振动系统包括音圈、振膜和球顶部，所述磁路系统包括华司、磁铁和导磁板，所述上壳的下端与所述下壳的上端通过超声波焊接在一起；其中：所述上壳的下端与所述下壳的上端均设置有用于熔接的超声线。本实用新型的扬声器模组，可以有效提升超声状态，当采用超声波使超声线融化后，可以避免超声熔接状态不好及漏气问题，另外，双超声线还可以有效防止超声后外壳变形的问题。 ...

Electric control box for multifunctional industrial control system and use method of electric control box

The invention discloses an electric control box for a multifunctional industrial control system and a use method thereof, and the electric control box comprises a base, the top end of the base is provided with a box body, the bottom ends of the two sides of the box body are provided with connecting blocks, the bottom ends of the connecting blocks are provided with movable blocks, the two sides of the top end of the base are provided with sliding grooves, and the outer sides of the movable blocks are in sliding connection with the inner sides of the sliding grooves. A driving mechanism is installed at the bottom end in the base, a box door is hinged to one side of the box body, sliding blocks are installed at the bottom ends of the two sides in the box body, sliding rails are slidably connected to the bottom ends of the sliding blocks, and the bottom ends of the sliding rails are fixedly connected with the top end of the base; first fixing rods are installed on the two sides of the top end ...

ENDOSCOPIC SURGERY NAVIGATION METHOD AND SYSTEM

Disclosed are an endoscopic surgery navigation method and system. The method comprises: reading multi-modal medical image data (101); using any image data in the multi-modal medical image data as a reference image, and using other image data as an image to be registered, so as to perform image full affine matching (102); performing scene reconstruction and hybrid rendering on the image data after the image full affine matching, and obtaining a virtual scene (103); completing a registration between a CT image and a pose of a patient by means of a convex hull fast registration method; performing fast calibration by means of a surface point cloud subjected to convex hull optimization; tracing an endoscope and surgical tools, and obtaining a pose relationship between the endoscope and surgical tools and the body of the patient (105); according to the obtained pose relationship, obtaining a virtual scene view of the endoscope in the virtual scene (106); and performing Gaussian function decay ...

Cleaning device for arc-shaped photovoltaic roof

The invention provides a cleaning device for an arc-shaped photovoltaic roof, belongs to the technical field of photovoltaic power generation, and solves the problems that the photovoltaic roof is difficult to clean manually due to the arc-shaped arrangement, the cleaning time is too long due to the too large area, and impurities and dust are easily accumulated to shield a photovoltaic panel. The house is provided with a photovoltaic roof, a displacement assembly is arranged on the top of the photovoltaic roof, and a cleaning assembly is arranged in the middle of the displacement assembly and moves along the displacement assembly. Through cooperation of the displacement assembly and the cleaning assembly arranged in the device, the photovoltaic panel of the arc-shaped roof can be automatically cleaned, and the situation that too many impurities and dust are attached to the surface of the photovoltaic panel, and the photovoltaic panel is shielded is prevented.

Production method of 750MPa-grade cold-rolled complex-phase steel

The invention relates to the technical field of cold-rolled complex-phase steel, in particular to a production method of 750MPa-grade cold-rolled complex-phase steel, which comprises the following steps of: refining smelted molten iron, hot-rolling and coiling, and pickling and rolling to obtain a complex-phase steel cold hard coil; and continuously annealing the complex-phase steel cold-hard coil to obtain continuous annealing cold-rolled complex-phase steel, or galvanizing the complex-phase steel cold-hard coil to obtain galvanized cold-rolled complex-phase steel. The 750MPa-grade cold-rolled complex-phase steel finished product prepared by the method is good in punch forming performance, has excellent reaming, flanging and bending performance, is excellent in comprehensive performance, can make up for the defects of existing 780MPa-grade cold-rolled dual-phase steel and complex-phase steel, realizes replacement, can greatly meet market requirements, and is widely applied to manufacturing ...

Manufacturing process of liquid crystal display screen

The invention discloses a manufacturing process of a liquid crystal display screen, and relates to the technical field of liquid crystal display screen manufacturing. The liquid crystal display screen comprises an LCM flexible module and a cover plate, the manufacturing process of the liquid crystal display screen comprises a packaging procedure, and the packaging procedure comprises the following steps that an OCA attaching process is adopted, OCA is attached to the cover plate firstly, and then the cover plate is attached to the LCM flexible module; and packaging the laminated cover plate and the LCM flexible module by adopting a sealing process of UV (Ultraviolet) glue, ALD (Atomic Layer Deposition) film, UV glue, ALD film and UV glue. According to the packaging process, the situation that due to the fact that the deformation amount of the LCM flexible module is large, gluing and film coating are not uniform in the subsequent manufacturing process, and the packaging quality is affected ...

RECEIVER

The present invention discloses a receiver comprising an outer shell that consists of a first shell, a second shell and a third shell fitting to each other from top to bottom. The third shell is of an integrated structure, and includes a magnetic permeable piece and plastic part integrally injection-molded therewith. The magnetic permeable piece is bonded and fixed with a magnet and a washer. The magnetic permeable piece, the magnet and the washer together form a magnetic circuit system of the receiver, and the third shell is fixed with the second shell by ultrasonic welding through the plastic part. The receiver of the present invention can realize one-step assembly of the rear cavity housing of the product, simplify the production process of the product, save the production time, and further reduce the production cost of the product.

Airtight optical module

The invention discloses an airtight optical module. The optical module comprises a box-shaped tube shell, the rear end wall of which is provided with a channel groove; the connecting piece is embedded in the channel groove and is provided with an upper-layer surface on which a direct-current signal line is arranged and a lower-layer surface on which a high-frequency signal line is arranged, and the upper-layer surface is opened upwards and comprises a first area located in front of the rear end wall and a second area located behind the rear end wall; the lower layer surface comprises a third area which is positioned in front of the rear end wall and is open upwards and a fourth area which is positioned behind the rear end wall and is open downwards; the chip carrier assembly is arranged in the tube shell and comprises an optical chip and a carrier, and the chip carrier assembly is electrically connected with the direct-current signal line of the first area and the high-frequency signal ...

Unmanned aerial vehicle shooting recognition device for tile damage

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle shooting recognition device for tile damage, which comprises an unmanned aerial vehicle body, a base arranged below the unmanned aerial vehicle body, and a camera arranged on the base, the supporting legs comprise a first supporting rod connected with the base, a second supporting rod hinged to one end of the first supporting rod and a third supporting rod hinged to one end of the second supporting rod, the first supporting rod, the second supporting rod and the third supporting rod are all obliquely arranged, and the first supporting rod inclines towards the direction close to the base from bottom to top; the inclination directions of the second supporting rod and the first supporting rod are opposite, the inclination directions of the third supporting rod and the first supporting rod are the same, a first air spring is hinged between the first supporting rod and the second ...

MINIATURE LOUDSPEAKER

A miniature loudspeaker comprises a first housing (10) and a second housing (20), which are combined together. A vibration system and a magnetic circuit system are accommodated in a space enclosed by the first housing (10) and the second housing (20). A side wall of the end, combined with the first housing (10), of the second housing (20) surrounds the periphery of the first housing (10), and a sealing gap is provided between an outer edge of the first housing (10) and the inner side of the side wall of the second housing (20). The miniature loudspeaker further comprises a sealing piece (50). The sealing piece (50) covers the outer side of the first housing (10), and an edge part of the sealing piece (50) is located in the sealing gap.

Psychological pressure monitoring device

The utility model discloses a psychological pressure monitoring device which comprises a device body, a displayer and a button are arranged on the surface of the device body, a winding groove is formed in one side of the interior of the device body, winding rollers are movably installed on the two sides of the interior of the winding groove, the two winding rollers are symmetrically distributed, and the displayer and the button are arranged in the winding groove. A connecting wire is fixedly mounted on the surface of the winding roller, connectors are movably mounted on the two sides of the interior of the winding groove correspondingly, one side of each connector is fixedly connected with one end of the connecting wire, two mounting grooves are formed in one side of the interior of the device body, and a user presses down a rotating disc to drive the connecting wire to rotate. The rotating disc drives the connecting sleeve to move towards the interior of the device body, the rotating disc ...

Method for preparing synthesis gas by melting and gasifying garbage through oxygen heat method and garbage melting and gasifying furnace

The invention relates to a method for preparing synthesis gas through oxygen heat method garbage melting and gasification and a garbage melting gasifier, the garbage gasifier comprises a gasification reaction chamber at the upper section, a reaction melting chamber at the lower section and a melting pool, the upper section of the reaction melting chamber is connected with a pyrolysis channel, the top of the gasification reaction chamber is connected with a chilling chamber through a connecting channel, and the top of the reaction melting chamber is connected with the melting pool. The melting pool is communicated with the slag water cooling pool through a slag discharge port downcomer, the reaction melting chamber is provided with a plurality of melting burners, nozzles of the melting burners are composed of central oxygen spraying guns and peripheral nozzles, the central oxygen spraying guns spray oxygen, the peripheral nozzles spray auxiliary oxygen, and the auxiliary oxygen and fuel ...

SHUTTER COVERED ON SOUND HOLE OF LOUDSPEAKER MODULE AND ASSEMBLING METHOD THEREOF, LOUDSPEAKER MODULE

The present invention provides a shutter covering a sound hole of a loudspeaker module and assembling method thereof, and the loudspeaker module. The shutter covering the sound hole of the loudspeaker module is arranged inside the case of the loudspeaker module, corresponding to the position where the sound hole located, and covering the sound hole. The shutter is a nonmetallic flexible net. The nonmetallic net-shaped shutter and the case are formed integrally by injection molding. The loudspeaker module and the shutter covering the sound hole thereof in the present invention have advantages of good acoustic performance, high reliability, high space utilization rate and high production efficiency. The assembling method for the shutter covering the sound hole of the loudspeaker module further makes assembling of the shutter convenient for operation, and improves the assembling efficiency and assembling quality.

Coal -winning machine planetary mechanism floating oil seal structure

... 本实用新型涉及一种采煤机行星机构浮动油封结构，包括：固定在滚筒座上的浮动油封动环与浮动油封动环对接的浮动油封静环，浮动油封静环固定在浮动油封座上，浮动油封静环油封座与二级行星机构输出轴承座固定连接，浮动油封静环油封座为环形，环形的两个端面的尺寸为设计高度H加减薄量h，减薄量h为0.5mm、1mm、1.5mm、2mm、2.5mm、3mm之一。本实用新型采用一系列的变厚度浮动油封座，通过减小静环浮动油封座的厚度，补偿了双行星机构的磨损造成的滚筒座与静环油封座之间距离减小问题，使两个O型密封圈的压缩量位于规定范围内，解决了浮动油封的漏油问题，节省了事故影响的时间，提高了检修效率,缩减了设备成本。 ...

Device for preventing empty end defect of disorderly heated cigarettes in blanking process of compound machine

The invention discloses a device for preventing disorderly heated cigarettes from having a loose end defect in a blanking process of a compound machine, which comprises a hopper base and a smoke barrier mounted on a hopper of the cigarette compound machine through a smoke barrier mounting seat hinge, and a smoke stirring roller driving shaft is fixedly mounted on the outer side of the hopper base. The output end of a cigarette stirring roller driving shaft on the inner side of the hopper base is fixedly connected with a cigarette stirring roller with an inclined end face or a curved surface cam disc, the cigarette stirring roller driving shaft is connected with a main transmission system, and a cigarette baffle supporting column is fixedly installed on the cigarette baffle and makes contact with the circumferential face of the cigarette stirring roller cam disc. A tension assembly is connected between the bottom of the smoke baffle and the hopper base. The tension assembly is fixedly installed ...

Full waveform inversion method based on gate loop unit and attention mechanism

The invention discloses a full waveform inversion method based on a gate loop unit and an attention mechanism. The method comprises the following steps: acquiring actual seismic data; data preprocessing and data set division; constructing a neural network model and setting hyper-parameters; training a neural network model to fit a forward modeling process; and optimal model parameters are loaded, and inversion mapping is carried out on unknown seismic data. By using the method, the calculation time can be reduced, the precision of full-waveform inversion can be remarkably improved, and the generalization ability of full-waveform inversion can be improved. The full waveform inversion method based on the gate cycle unit and the attention mechanism can be widely applied to deep reservoir exploration tasks, a geological velocity model can be predicted more quickly and clearly, and accurate geological physical property interpretation can be realized.

Intelligent inspection system, method and equipment for transformer substation and storage medium

The invention discloses an intelligent substation inspection system, method and device and a storage medium, firstly, an inspection path of an inspection robot is generated by combining an original view shot by an acquisition module with a three-dimensional model of a substation site, so that the inspection robot inspects a substation inspection point according to the inspection path and acquires an inspection view; then the intelligent processing unit carries out comparative analysis on the inspection view and the original view, determines an error value, and judges whether the error value is greater than a preset threshold value or not; when the error value is greater than a preset threshold value, position information of a corresponding substation inspection point is obtained in combination with the inspection path, so that the substation is monitored according to the position information; meanwhile, the monitoring module carries out real-time monitoring; and when no error exists or ...

Method for reducing and settling sticky slag layer of electric furnace

The invention discloses a method for reducing and settling a sticky slag layer of an electric furnace. The method comprises the following steps: (1) respectively preparing a reducing agent A, a reducing agent B and a reducing agent C; (2) in an electric furnace in normal production, measuring the thickness h of a sticky slag layer by using a furnace top sampling rod, sending upper slag and middle sticky slag suspended on the sampling rod to a laboratory for test analysis, selecting a corresponding reduction agent according to the thickness h of the sticky slag layer and chemical components of the slag and the sticky slag, putting the reduction agent into a molten pool from an observation hole and a feeding hole in the top of the electric furnace, and performing reduction treatment; and the reduction agent directly falls into a sticky slag layer between the slag layer and the matte to reduce and dilute sticky slag, and the sticky slag layer is reduced and controlled to be 0-200 mm. According ...

Navigation method suitable for ship in ship lock

The invention discloses a navigation method suitable for a ship in a ship lock. The method comprises the following steps that S1, a ship side sends lock passing information in advance; s2, driving into a parking area to wait for a gate; s3, collecting ship information by the command center, and calculating passable gateways and gate arrival time; s4, the command center calculates the navigation information of the ship and sends the navigation information to the ship side; s5, the ship side verifies the navigation information; s6, the command center adjusts the state of the ship; s7, the ship side sails out of the gate according to the sailing information; and S8, the command center changes the to-be-launched state into a locked state. According to the scheme, through setting of the lockage declaration information and the navigation information, a command center can conveniently plan a passing gateway and a navigation track of a ship, scientific management of the gateway and scientific scheduling ...

GROUP CALL SERVICE PROCESSING METHOD AND SYSTEM, AND CORE NETWORK DEVICE

Disclosed in the present application is a group call service processing method based on a cluster communication system. The method comprises: after establishing a group call, a core network device receives a group call downlink data packet from a data source; and the core network device sends the group call downlink data packet to a bearer network, a multicast distribution tree being preset in the bearer network, and the multicast distribution tree using the core network device as a multicast source and using a participant base station in a multicast group as a leaf node. In the method, the core network device only needs to send a copy of data to implement a point-to-multipoint multicast transmission mode from the core network device to a group call terminal, thereby reducing the load of the core network device and the redundant flow of the bearer network, reducing the transmission delay and improving the capacity and the performance of the cluster service on the whole.

SPEAKER MODULE

Disclosed is a speaker module, comprising: an inner cavity enclosed by a housing. The inner cavity is provided with a magnetic circuit system and a vibration system therein. The vibration system comprises a vibration diaphragm fixed in the inner cavity. A lower end of the vibration diaphragm is fixed with a voice coil, and an upper end of the vibration diaphragm is provided with a first induction coil. The voice coil is electrically connected, via a lead thereof, to the first induction coil. The first induction coil is correspondingly provided with a second induction coil thereabove electrically connected to a terminal device. When the speaker module of the present invention operates, the terminal device transmits an external audio current signal to the second induction coil so as to enable the second induction coil to generate a magnetic field, wherein the generated magnetic field changes along with a variation of the audio current signal. When the first induction coil senses the changed ...

METHOD OF ACQUIRING LOCATION INFORMATION, ASSOCIATED APPARATUS, AND TRUNK COMMUNICATION SYSTEM

The embodiments of the invention disclose a method of acquiring location information, an associated apparatus, and a trunk communication system. The method is applicable to a trunk communication system comprising a server and a plurality of terminals. The method comprises: a server receives a location information request transmitted from a first terminal and comprising an indication indicative of a mapping relationship with a target terminal, wherein the indication is used to acquire location information of the target terminal; and the server transmits, to the first terminal, according to the location information request, the acquired location information of the target terminal. The embodiments of the invention also provide a server and a trunk communication system. In the embodiments of the invention, one in the plurality of terminals can actively obtain the location information of the target terminal without obtaining a permission.

PROTECTIVE APPARATUS FOR SOUND-ABSORBING PARTICLES IN SOUNDING APPARATUS

A protective apparatus for sound-absorbing particles (4) in a sounding apparatus, comprising a housing (1) and a rear acoustic cavity formed inside the housing (1). The rear acoustic cavity is filled with sound-absorbing particles (4). A sound circulation channel (5) communicating the rear acoustic cavity with the outside is provided on the housing (1). A sound transmission layer (3) used for preventing the sound-absorbing particles (4) from being exposed covers an entrance of the sound circulation channel (5). The sound transmission layer (3) of the protective apparatus separates the sound circulation channel (5) from the rear acoustic cavity, such that airflow in the rear acoustic cavity passes through the sound transmission layer (3) and then flows out of the sound circulation channel (5). Configuration of the sound transmission layer (3) can hinder the sound-absorbing particles (4), prevent the sound-absorbing particles (4) from entering the sound circulation channel (5), and do not ...

ULTRATHIN LOUDSPEAKER MODULE

The present invention provides an ultrathin loudspeaker module. The ultrathin loudspeaker module comprises a peripheral case, a loudspeaker unit, a first separating wall, and a second separating wall. The peripheral case is provided with a sound outlet hole thereon. The loudspeaker unit comprises a diaphragm. The first separating wall is provided with a diaphragm accommodating hole, the diaphragm of the loudspeaker unit is fixed in the diaphragm accommodating hole, and the first separating wall and the diaphragm separate the internal space of the peripheral case into an upper space and a lower space. The second separating wall separates the upper space into one first upper cavity and at least one second upper cavity. The first upper cavity comprises a diaphragm and forms a front vocal cavity, and the front vocal cavity communicates with the outside by using the sound outlet hole on the peripheral case. The at least one upper cavity communicates with the lower space by using a through-hole ...

LOUDSPEAKER MODULE

Disclosed is a loudspeaker module. The loudspeaker module comprises an inner cavity defined by a housing in a surrounding manner. A loudspeaker unit is disposed in the inner cavity of the housing. The loudspeaker module further comprises a first induction coil used for being electrically connected to a terminal device. A second induction coil that is disposed correspondingly to the first induction coil and that is used for being electrically connected to a voice coil in the loudspeaker unit is also disposed on the housing. In the loudspeaker module of the present invention, an output end of a whole machine and the voice coil are connected by means of the first induction coil and the second induction coil; by using the structure, space of the module can be greatly saved, and a lighter and thinner whole machine can be developed; in addition, the problems such as poor performance due to the change of a resistance value in the conventional acoustoelectric connection mode is also avoided. By ...

LOUDSPEAKER MODULE

Disclosed is a loudspeaker module, which comprises a loudspeaker monomer and a peripheral frame, wherein the peripheral frame comprises an upper shell and a lower shell; a front acoustic cavity and a rear acoustic cavity are respectively formed in a space between the loudspeaker monomer and the upper shell and a space between the loudspeaker monomer and the lower shell; an acoustic hole which is in communication with the front acoustic cavity is provided on the peripheral frame, wherein acoustic waves radiated via a vibrating diaphragm of the loudspeaker monomer at one side of the front acoustic cavity are radiated to the outside after passing through the front acoustic cavity and the acoustic hole; and an inverted tube is also provided in the peripheral frame, wherein one end of the inverted tube is in communication with the rear acoustic cavity, the other end thereof is in communication with the front acoustic cavity, and acoustic waves radiated via the vibrating diaphragm of the loudspeaker ...

Motor rotor drawing and penetrating device and drawing and penetrating method

The invention relates to the technical field of motor maintenance, in particular to a motor rotor drawing and penetrating device and method, and the device comprises a guide rail, a dummy shaft sleeve, a stator moving device and a rotor supporting device, and the stator moving device is used for supporting a stator to move along the guide rail; the height of the rotor supporting device is adjustable, the rotor supporting device is used for supporting a rotor and enabling the center line of the rotor and the center line of a stator to be located on the same horizontal line, the rotor supporting device comprises a first supporting frame and a second supporting frame which are used for supporting one side of the rotor and a third supporting frame used for supporting the other side of the rotor, and the first supporting frame and the second supporting frame are arranged in a spaced mode; a distance larger than the axial length of the stator is reserved between the two movable arms, each movable ...

Node management method and system

The invention provides a node management method and system.The node management method is applied to equipment management nodes and comprises the steps that a node distribution request carrying node attribute information is received, and the node attribute information corresponds to the equipment nodes; matching the node attribute information with a screening condition corresponding to a sub-service set; determining a target sub-service corresponding to the device node in the sub-service set according to a matching result; and based on the node attribute information and the service attribute information of the target sub-service, establishing an association relationship between the device node and the target sub-service, and taking the association relationship as a response of the node allocation request. According to the method and the device, the proper target sub-service is matched for the device node according to the node attribute information of the device node, so that the device node ...

RECEIVER

Disclosed in the present invention is a receiver. The receiver comprises an outside housing, and a magnetic circuit system and a vibration system accommodated in the outside housing. The vibration system comprises a vibration diaphragm and a voice coil. The outside housing comprises a first housing and a second housing matching with each other. The first housing and the second housing are provided with electrical connection structures conductive to one another thereon. The first housing is provided with a first elastic piece on a sidewall thereof. One end of the first elastic piece is welded with a spring electrically connected to an external circuit, and the other end is exposed at the outside of the sidewall of the first housing. The second housing is provided with a second elastic piece on a sidewall thereof. One end of the second elastic piece is electrically connected to a lead wire of the voice coil, and the other end of the second elastic piece is exposed at the outside of the sidewall ...

METHOD FOR SWITCHING CALL SERVICE OF TERMINAL AND APPARATUS

Provided by the present application are a method for switching a call service of a terminal and an apparatus, the method for switching a call service of a terminal comprising: receiving second registration information carrying a switching instruction sent by a terminal; parsing the switching instruction from the second registration information, simultaneously maintaining first registration information and the second registration information according to the switching instruction obtained by parsing, and establishing a second call service communication link on a target access network according to the second registration information; communicating with the terminal by means of a first call service communication link and the second call service communication link; and releasing the first call service communication link. In the present application, continuity of a call service may be maintained by means of the described manner, thereby improving user experience.

Dry and moulded coal preparation system of low order coal tubular

... 本实用新型公开了一种低阶煤管式干燥和型煤制备系统，解决了直接运输经济性差、易产生粉尘排放的问题。技术方案包括干燥系统和成型系统，所述干燥系统包括依次串连的给料机、皮带机、破碎机、皮带机、煤仓、称重给煤机和管式干燥机；所述成型系统包括依次串连的混合机、成型机、筛分机和冷却输送机。本实用新型设计合理、操作安全、环保高效。 ...

Fastener production cooling device and using method thereof

The invention discloses a fastener production cooling device and a using method thereof, and relates to the technical field of fastener cooling devices.The fastener production cooling device comprises a bottom plate and a cooling box, a drainage pipe is installed on the surface of the cooling box, and the fastener production cooling device further comprises conveying devices which are arranged in the cooling box and used for disordering and conveying fasteners when the fasteners are cooled; the conveying device comprises a motor fixedly connected to the surface of the cooling box and a storage frame used for conveying the fasteners when the fasteners are cooled. The cooling devices are arranged on the surface of the cooling box and used for cooling the cooling box, and each cooling device comprises a storage box fixedly connected between the cooling box and the bottom plate and an aluminum foil plate used for cooling the cooling box; according to the cooling device, the conveying device ...

Method and system for evaluating comprehensive energy efficiency performance of power generation enterprise

The invention provides a power generation enterprise comprehensive energy efficiency performance evaluation method and system. The method comprises the following steps: determining an energy efficiency management performance evaluation system and an energy saving performance evaluation system; the method comprises the following steps: determining scores of indexes in an energy efficiency management performance evaluation system based on an energy efficiency management strategy formulated by a power generation enterprise, owned resources, a manager participation condition, monitoring planning and completion conditions and an energy conservation and emission reduction target completion degree condition; determining a performance score of the energy efficiency management performance evaluation system based on the preset weight and the score of each index; based on the entropy weight matter-element extension model and the power generation data and the consumption resource data of the plurality ...

RECEIVER

A receiver comprises an outside housing. The outside housing comprises a first housing (1), a second housing (2) and a third housing (3) matching with one another from top to bottom. A vibration system is accommodated in a cavity formed by the outside housing and comprises a vibration diaphragm (8) dividing the receiver into a front sound cavity and a back sound cavity. The third housing (3) is injection molded and provided with sound outlets (301) of the back sound cavity in communication with the outside environment. Positions corresponding to the sound outlets (301) on the third housing (3) are injection molded and combined with mesh fabrics (302) isolating the back sound cavity from the outside environment. The receiver can effectively prevent impurities of outside environment from falling into the back cavity which would impair the product performance, thereby providing the function of product protection.

RECEIVER

The present utility model discloses a receiver comprising an outer shell including a first shell, a second shell and a third shell that cooperate with each other from top to bottom. The third shell has an integrated structure and includes a magnetic conductive part and a plastic part integrally injection-molded therewith. A magnet and a washer are bonded and fixed to the magnetic conductive part, and the magnetic conductive part, the magnet and the washer together form a magnetic circuit system of the receiver. The third shell is fixed with the second shell by means of ultrasonic welding through the plastic part. The receiver of the utility model can realize one-step assembly of shell of the rear cavity of the product, simplify the production process, save the production time, and thus reduce the production cost of the product.

SPEAKER MODULE

Provided in the present invention is a speaker module, comprising a module outer shell, and a speaker unit accommodated inside the module outer shell; the speaker unit divides the cavity formed by the module outer shell into a front audio cavity and a rear audio cavity; the rear audio cavity is filled with sound-absorbing particles, an isolating mesh for separating the sound-absorbing particles from the speaker unit being arranged on the side wall of the module outer shell; the isolating mesh is secured onto a first securing frame by means of injection moulding, the first securing frame being secured inside the corresponding module outer shell by means of injection moulding. Using the present invention can prevent problems such as leaking, deviation or breakage of the mesh during the process of securing the isolating mesh.

Method for extracting DEM (Digital Elevation Model) based on GF7 stereopair

The invention discloses a method for extracting a DEM (Digital Elevation Model) based on a GF7 stereopair. The method comprises the following steps of: 1, acquiring a GF7 stereopair remote sensing satellite image; step 2, constructing an adjustment block and finishing block adjustment to realize high-precision orientation of all images; 3, constructing a plurality of pairs of double-image stereoscopic images by using index values such as an overlapping rate between the front view and the rear view of the GF7 stereoscopic image, a same-name light intersection angle and the like; 4, extracting a digital elevation model (DEM) by adopting an image dense matching algorithm; 5, calculating the weight value of each double-image stereoscopic image through the intersection angle and the relative precision of the double-image stereoscopic images and the time phase difference index of the formed images; and step 6, performing weighted fusion based on the weight value to generate a fused DEM product ...

Management method and system for orderly power utilization

The invention discloses a management method for orderly power utilization, and the method comprises the steps: collecting the power utilization load data of a user, carrying out the recognition and classification, and carrying out the preprocessing of the data; performing clustering analysis on the daily load characteristic curve by using a clustering algorithm to obtain a common power utilization mode of the user; and performing type judgment on the common power consumption mode, and realizing orderly power consumption of the user according to a peak shifting object priority ranking method. The user node power is calculated to form a daily load characteristic curve, the common power consumption mode of the user is accurately analyzed through a clustering algorithm, and the power consumption state of the user can be updated more accurately and more quickly through further limitation of the daily execution rate, so that orderly power consumption of the user is allocated, and the risk of ...

AVC system control method and system based on target voltage

The invention relates to the technical field of data anomaly detection, in particular to an AVC (Automatic Voltage Control) system control method and system based on target voltage, and the method comprises the following steps: collecting load side bus voltage and current action state corresponding to different action states of voltage regulation equipment in real time; screening the voltages corresponding to different action states of the voltage regulation equipment according to a preset voltage range to obtain a plurality of target voltages; detecting the action state of the voltage regulation equipment corresponding to each target voltage to obtain a plurality of target action states of the voltage regulation equipment; according to the difference value between each target action state of the voltage regulation equipment and the current action state of the voltage regulation equipment, an adjustment scheme is formulated; when out-of-limit occurs, controlling the AVC system to perform ...

Power grid overhead line monitoring system, method, equipment and medium

The invention discloses a power grid overhead line monitoring system, method and device and a medium, and the method comprises the steps: detecting the connection and disconnection of a cable between two adjacent power transmission towers through a line monitoring module, transmitting a fault signal to a disconnection part of a power grid overhead line, and collecting the panoramic image information of the power transmission line; the panorama of the power transmission line in the power transmission line is established into a three-dimensional model through the three-dimensional grid module, the three-dimensional model is integrated with the information of the power transmission line, and finally a fault signal is transmitted to a power grid management platform to obtain the position information of the overhead line at the position where the fault signal occurs, so that the management of pre-arrangement or fault power failure information is facilitated, and the management efficiency is ...

LOUDSPEAKER MODULE

Disclosed is a loudspeaker module, comprising a housing and a loudspeaker single-unit accommodated in the housing. A sound emission hole is provided on the housing, and a protective net is provided at a position of the housing corresponding to the sound emission hole, wherein the protective net has a non-planar structure. In the loudspeaker module of the present invention, the protective net has a non-planar structure, and cancels, via deformation thereof, stress of the housing such that the stress does not act on the protective net to cause tearing or deformation of the net holes, thus improving reliability of the protective net, preventing external foreign matter from entering the interior of the loudspeaker module, and improving reliability of the loudspeaker module.

STEAM TURBINE HAVING STEAM SUPPLEMENTING STRUCTURE AND OPERATION METHOD THEREFOR

A steam turbine having a steam supplementing structure, comprising an outer cylinder (110) and an inner cylinder (120). A rotor (130) having a thrust balancing piston (140) is rotatably supported and mounted inside the inner cylinder (120), a steam flow passage is formed between the inner cylinder (120) and the rotor (130), and a plurality of moving blades (150) of the rotor (130) and a plurality of guide blades (160) of the inner cylinder (120) are alternately arranged to form multiple stages of blade units; an interlayer allowing the passage of steam is formed between the inner cylinder (120) and the outer cylinder (110), and the interlayer comprises a steam supplementing chamber (220) capable of receiving steam from a sealed chamber (310) between the rotor (130) and the inner cylinder (120), the steam being mixed with supplementary steam supplemented from the outside to the steam supplementing chamber (220) through a plurality of steam supplementing conduits, so as to eliminate the flow ...

Peak shifting optimization control method and system

The invention discloses a peak shifting optimization control method and system. The method comprises the following steps: acquiring dynamic data; performing data cleaning and processing on the dynamic data to form a complete database; performing real-time analysis on user behaviors according to the database information, and optimizing user power consumption behaviors; and according to the optimized power consumption behavior of the user, generating an orderly power consumption fine management scheme. According to the method, the energy utilization efficiency is improved, the energy waste and the energy cost can be effectively reduced through real-time analysis and optimization of the power consumption behavior of the user, and the energy utilization efficiency is improved; electricity consumption behaviors of users are optimized, electricity consumption of the users is more concentrated and stable, energy price soaring in the energy market in the peak period is avoided, and therefore the ...

LOUDSPEAKER MODULE AND ELECTRONIC APPARATUS

Disclosed are a loudspeaker module and an electronic apparatus. The module comprises a module housing and a sound production device; an accommodating cavity and multiple resonant cavities are provided in the module housing; the sound production device is provided in the accommodating cavity; the accommodating cavity is separated into a front acoustic cavity and a rear acoustic cavity by the sound production device; the front acoustic cavity is communicated with an external space by means of a sound outlet; the multiple resonant cavities are communicated in series, and one of the multiple resonant cavities is communicated with the front acoustic cavity. The multiple resonant cavities are connected together in series, so that a wide frequency noise resonant frequency band can be provided, so that noise of a wider frequency band can be absorbed. In this way, the multiple resonant cavities communicated in series can improve the sound production effect of the loudspeaker module.

PDIN ALLOY CATALYST, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF

The present invention provides a PdIn alloy catalyst. The PdIn alloy catalyst comprises a carrier and metal Pd loaded on the carrier. The carrier is a nitrogen-doped porous carbon composite material having a plurality of pore channels. The nitrogen-doped porous carbon composite material comprises a nitrogen-doped porous carbon material, indium oxide, and metal In which is exposed by the pore channels. The indium oxide is uniformly distributed in the nitrogen-doped porous carbon material, and corners of the metal Pd are selectively occupied by metal In. The present invention further provides a preparation method for the PdIn alloy catalyst and application thereof.

Adhesive and preparation method thereof

The invention discloses an adhesive and a preparation method thereof, and belongs to the technical field of adhesion. The adhesive comprises the following components in parts by weight: 100 parts of MS resin, 30-60 parts of a diluent, 100-200 parts of nano calcium carbonate, 40-50 parts of nano carbon black powder, 4-5 parts of silane and 0.2-2 parts of a catalyst. The adhesive provided by the embodiment of the invention still has good weather resistance, thixotropy and other adhesive properties under the condition that an antioxidant and a thixotropic agent do not need to be additionally added, and also has the characteristics of simple components and convenience in storage.

Node attribute configuration method and device of mind map, equipment and storage medium

The invention provides a node attribute configuration method and device of a mind map, equipment and a storage medium, and belongs to the technical field of office automation. The method comprises the following steps: receiving node attribute setting information for a first target node in a target mind map; updating the node attribute of the first target node according to the node attribute setting information; and displaying the updated node attribute on a preset attribute viewing interface under the triggering of the action interaction information for the first target node. According to the method, the function of the mind map is expanded, the richness of information carried by the mind map is improved, so that a mind map tool is not limited to only display the outline and can also be used for writing all structured documents, the integrity of the whole document data is ensured, document writing work can be completed without replacing different tools, and the method is convenient and ...

Power grid risk early warning and decision-making system, method and equipment based on knowledge graph

The embodiment of the invention relates to a power grid risk early warning and decision-making system, method and equipment based on a knowledge graph. The system comprises a data acquisition module, a graph construction module and an early warning and auxiliary module, the data acquisition module is used for acquiring power data of a power system; the graph construction module is used for constructing a relational knowledge graph according to the power data; the early warning and auxiliary module is used for combining the equipment abnormal warning signals of the power grid abnormal signal spectrum to obtain risk pre-judgment of a power system fault; and by taking the power grid abnormal signal as a trigger condition, generating a fault handling plan according to the power grid knowledge base map, the power grid risk map and the expert fault handling knowledge map. According to the system, the data acquisition module acquires power data, the graph construction module constructs a relational ...

Intelligent voltage regulation control system

The invention discloses an intelligent voltage regulation control system, belongs to the field of intelligent voltage regulation, and solves the problem of how to intelligently control and protect a voltage regulator so as to avoid the problems of high construction labor intensity, low voltage regulation precision, device burning loss and incapability of remote control caused by manual regulation. Three-phase voltage at the lower end of a main power switch and three-phase voltage and current at the output end of a voltage regulator are measured through a multifunctional instrument, voltage regulation control from coarse regulation to fine regulation is carried out by a programmable logic controller (PLC) according to read measurement data and a set voltage value set by a user on an upper computer, and accurate voltage regulation is achieved; by arranging the main power switch, the input switch and the output switch, the voltage regulation main loop can be timely switched off under the abnormal ...

Distribution network first-aid repair command method, device and system

The invention discloses a distribution network first-aid repair command method, device and system, and the method comprises the steps: building a master station system which is used for receiving and analyzing fault reporting information uploaded by a customer; creating a work order according to an analysis result, and sending the work order to a first-aid repair device; rush-repair personnel carry the rush-repair device to the site for rush-repair. According to the method, full-process management and control from fault reporting to power restoration can be realized, and informatization means support strength in the aspects of customer service visual research and judgment, service dispatching visual monitoring, customer interaction real-time interaction and the like is enhanced.

Configuration language code compiling method and system

The embodiment of the invention provides a configuration language code compiling method and system, and the method comprises the steps: generating a syntax tree based on a configuration language code, and checking the syntax tree, nodes in the syntax tree respectively correspond to a syntax structure in the configuration language code, and the syntax structure comprises an operation object and an operation; obtaining error information, wherein the error information comprises the category and the position of an error occurring in the configuration language code; the error category value nodes are added into the syntax tree based on the positions, then an updated syntax tree is obtained, and the error category value nodes correspond to the categories; an updated configuration language code is obtained based on the updated syntax tree, and the position, corresponding to the position, in the updated configuration language code contains an error prompt text corresponding to the error category ...

ELECTRICALLY-CONDUCTIVE MEMBER AND SPEAKER DEVICE

Provided are an electrically-conductive member (10) and a speaker device. The electrically-conductive member (10) comprises a first electrical connection portion (100), a second electrical connection portion (102), and a middle portion (101) used to connect the first electrical connection portion (100) and the second electrical connection portion (102). The first electrical connection portion (100) and the second electrical connection portion (102) are made of a stainless steel material. The middle portion (101) is made of a material having an impedance value and a magnetic conductivity lower than an impedance value and a magnetic conductivity of the stainless steel material. The electrically-conductive member (10) that electrically connects an electronic element to an external circuit has an overall high impedance and a high magnetic permeability.

PTC effect electrothermal film and preparation method and application thereof

The invention discloses a PTC effect electrothermal film and a preparation method and application thereof. The PTC effect electrothermal film comprises a film substrate, an electrothermal layer with a PTC effect, a conductive circuit and a circulation relay, the electrothermal layer with the PTC effect comprises nano silicon hybrid resin, flake graphene, a heat-sensitive material, a conductive agent and an auxiliary agent, the electrothermal layer with the PTC effect covers one surface or two surfaces of the film substrate, and the conductive circuit is connected with the circulation relay. And the circulation relay is arranged in the conductive circuit. The preparation method of the PTC effect electrothermal film comprises the following steps: 1) preparing electrothermal slurry; and 2) coating the electrothermal slurry on the surface of a film substrate, drying to form a film, arranging a conductive circuit and a circulating relay, and arranging a temperature sensor as required to obtain ...

Electric motor oil system

... 本实用新型公开了一种电动机油系统，包括：电动机，油泵，油站，油雾风机，主进油管，主出油管，油雾管；主进油管连通所述电动机的轴承室与油站，主出油管连通轴承室与油站，油泵安装在主进油管上，轴承室的顶部开孔通过油雾管与油站连通。解决了现有电动机油系统抽油烟影响到主电机的稳定运行的技术问题，使得电动机油系统能够长期稳定运行，而不至于在电动机内部积累油烟，进而有效延长了电动机的使用寿命，减少了电动机检修周期。 ...

CO's device is retrieved to acetic acid tail gas

... 种针对醋酸尾气回收CO的装置，包括相互连接的用于甲醇洗的装置、用于PSA?1工段的装置、用于PSA?2工段的装置和用于PSA?3工段的装置，其中用于PSA?2工段的装置通过带有第五调节阀的管道同PSA?3工段相连接，用于PSA?2工段的装置通过带有第五调节阀的管道同PSA?3工段相连接的结合处通过管道同再生气冷却器相连接，而再生气冷却器通过管道同用于PSA?1工段的装置相连接；避免了现有技术中的大量的CO放空既浪费了能源、增加了醋酸生产成本、又污染了环境的缺陷。 ...

LOUDSPEAKER MODULE

Disclosed is a loudspeaker module. The loudspeaker module comprises an inner cavity formed by a housing, comprises a voice coil and an FPCB that are mounted in the inner cavity of the housing, and further comprises a leading wire of the voice coil and a flexible connection portion that is located between the leading wire and the FPCB. A free end of the leading wire is connected to one end of the flexible connection portion, and the other end of the flexible connection portion is connected to the FPCB. The flexible connection portion is suspended in the inner cavity of the housing by means of the leading wire and the FPCB. In the loudspeaker module of the present invention, when the voice coil is vibrated, the leading wire can be vibrated together with the flexible connection portion; that is, a pad connected between the leading wire and the flexible connection portion can be vibrated along with the leading wire, thereby effectively preventing the leading wire from falling off and fracturing ...

HIGH VOLTAGE CABLE SPOOLING MACHINE

Disclosed is a high-voltage cable spooling machine, comprising a machine frame (1), and a spooling machine (7) and a cable arrangement device provided on the machine frame. The spooling machine (7) comprises a winding drum (14) and an electric motor (3), wherein the winding drum is connected to a main shaft (9) fixed on the machine frame, the electric motor is connected to the cable arrangement device and the main shaft via a hysteresis coupling (4), a reduction gear (5) and a drive mechanism (6), a high-voltage winding drum power collector is provided within the winding drum, and the cable arrangement device is set at the side of the winding drum. The high-voltage cable spooling machine has a rational structure, and can used for high-voltage cables. The hysteresis coupling can maintain an optimal cable length, avoiding over-tensioned and slack cables, keeping constant tension, and ensuring that the cables cannot be damaged by pulling. When the cable is retracting, the cable arrangement ...

LIQUID CRYSTAL DISPLAY DEVICE

Provided is a liquid crystal display device, comprising an array substrate (200) and a color filter substrate (300) arranged opposite to each other, and liquid crystal molecules (30) sandwiched between the array substrate (200) and the color filter substrate (300). The array substrate (200) is provided with a first electrode (40) and a second electrode (51), and an insulating layer (60) arranged between the first electrode (40) and the second electrode (51). The second electrode (51) is arranged on a side close to the liquid crystal, and the second electrode (51) is provided with a slit structure, and the second electrode (51) is provided with a segment difference structure. By providing the second electrode (51) having the segment difference structure on the insulating layer (60) of the array substrate (200), there is a height difference among different segments on the second electrode (51), thereby reducing the fringe field effect during display and improving the transmittance of the ...

LOUDSPEAKER MODULE AND ELECTRONIC APPARATUS

A loudspeaker module and an electronic apparatus. The module comprises a module housing and a sound production device; an accommodating cavity and multiple resonant cavities are provided in the module housing; the sound production device is provided in the accommodating cavity; the accommodating cavity is separated into a front acoustic cavity (18) and a rear acoustic cavity (19) by the sound production device; the front acoustic cavity (18) is communicated with an external space by means of a sound outlet; the multiple resonant cavities are isolated from each other, and each resonant cavity is communicated with the front acoustic cavity (18) of the module housing by means of respective communication channels. The multiple resonant cavities connected in parallel can improve the sound production effect of the loudspeaker module.

Space manipulator outboard care configuration optimization method

The embodiment of the invention provides a space manipulator extravehicular care configuration optimization method, which belongs to the field of manipulator configuration optimization, and comprises the following steps: constructing performance evaluation indexes of a space manipulator extravehicular care configuration as static load capacity, flexibility and collision safety distance according to a space station cabin section care task type; constructing a space manipulator extravehicular care configuration optimization model, wherein the optimization model comprises constraint conditions and decision variables; constructing an adapter selection strategy and a reference configuration selection strategy according to the space manipulator extravehicular care configuration optimization model and the performance evaluation indexes; and according to an NSGA-II algorithm, the adapter selection strategy and the reference configuration selection strategy, a space manipulator configuration optimization ...

MICRO SPEAKER

Disclosed is a micro speaker, comprising a vibrating system, a magnetic circuit system and a support system; the vibrating system comprises a vibrating diaphragm voice coil; a vibrating diaphragm comprises a spherical top portion and a bending ring portion; the magnetic circuit system comprises a spring washer, a magnet and a magnet yoke combined with each other in sequence; a recessed groove structure is provided at a position of an upper casing corresponding to the spherical top portion of the vibrating diaphragm; a give-way groove is provided at a position of the spherical top portion aligned with the groove structure of the upper casing; the longitudinal depth of the give-way groove is not less than the depth of the groove structure of the upper casing; an orthographic projection area of the give-way groove covers an orthographic projection area of the groove structure of the upper casing; a give-way structure is provided on the spring washer of the give-way groove aligned with the ...

SPEAKER MODULE

The present invention relates to the technical field of electroacoustic products. Disclosed is a speaker module, comprising a shell. A speaker body is accommodated in the shell. The speaker body is electrically connected to a circuit outside the module through a cable. One end of the cable located inside the module is electrically connected to the speaker body, and the other end of the cable located outside the module is electrically connected to the circuit outside the module. A position of the shell corresponding to the cable inside the module is provided with a positioning groove. The cable is limited in the positioning groove. End surfaces of sidewalls at two sides of the positioning groove are both provided with hot-melt wires. After hot melting, the hot-melt wires wrap the cable in the positioning groove. According to the speaker module in the present invention, the cable is effectively positioned in limited space, impact of the cable on air in the module is effectively reduced, acoustic ...

A four arm coordinated type manipulators for accessing vehicle

... 本实用新型公开了一种用于存取车辆的四臂联动式机械手，包括移动式的安装架，以及铰接在安装架上且匹配有驱动机构的夹臂，所述夹臂有两对，每对夹臂对应一个车轮，所述驱动机构包括：与安装架转动配合的丝杠；设置在安装架上与所述丝杠联动的电机；与所述丝杠螺纹配合的导向座；连接在导向座与各个夹臂之间的牵引杆。本实用新型提供的机械手整体高度较小，改善了对不同底盘高度车辆的适用性，利用普通减速电机替代伺服电机，降低了成本，增加了维修空间，同时在机械手进入车辆底盘下方之前，通过调整安装架的位置，使两套机械手的间距与前后轮轴距相适应，不需要夹臂滑动来探测车辆轴距，节约了运行时间。 ...

Dry and moulded coal preparation system of low order coal disk

... 本实用新型公开了种低阶煤盘式干燥和型煤制备系统，解决了直接运输经济性差、易产生粉尘排放的问题。技术方案包括干燥系统和成型系统，所述干燥系统包括依次串连的给料机、皮带机、破碎机、皮带机、煤仓、称重给煤机和盘式干燥机；所述干燥系统经给料系统与成型系统连接，所述给料系统包括粘结剂添加系统和给煤系统，所述粘结剂添加系统包括粘结剂仓，所述粘结剂仓经粘结剂称重给料机与所述混合机连接，所述给煤系统包括依次连接的输送机、细碎机、输送机、煤仓和称重给煤机，所述称重给煤机与所述混合机连接；所述成型系统包括依次串连的混合机、成型机、筛分机和冷却输送机。本实用新型设计合理、操作安全、环保高效。 ...

MAGNETIC CIRCUIT SYSTEM FOR LOUDSPEAKER, AND LOUDSPEAKER

Disclosed are a magnetic circuit system for a loudspeaker, and a loudspeaker. The magnetic circuit system for a loudspeaker comprises a magnetically conductive plate (11), a central magnet (12), a central washer (14), a side magnet (13), and a side washer (15). The side washer (15) comprises a washer body (151) and a bent portion (152) continuing from the washer body (151). The washer body (151) is arranged on the surface, away from the magnetically conductive plate (11), of the corresponding side magnet (13). The bent portion (152) is bent towards the magnetically conductive plate (11) from top to bottom via a side face (15a) of the washer body (151). The bent portion (152) and the magnetically conductive plate (11) are fixedly welded together. According to the present invention, by providing the bent portion and fixedly welding the bent portion and the magnetically conductive plate together, the side washer, the magnetically conductive plate, and the side magnet between the side washer ...

SPLIT-TYPE MANIPULATOR AND METHOD FOR CARRYING VEHICLE USING SAME

A split-type manipulator, comprising a rectangular frame body (8) as well as a clamping arm system, a traveling system, and a control system which are mounted on the frame body (8). The traveling system comprises two sets of driving wheels (10) and driven wheels (6) mounted at four corners of the frame body (8); each set of driving wheels (10) is matched with a traveling motor (11), separately; the clamping arm system comprises two pairs of clamping arms (5), and each clamping arm (5) is independently provided with a clamping arm motor (4); and the frame body (8) is provided with super capacitors or batteries (7) which are connected to the traveling motors (11), the clamping arm motors (4), and the control system by means of circuits and are used for supplying power; the super capacitors or batteries (7) are mounted on two sides of a power area. Also provided is a method for carrying a vehicle using the split-type manipulator. The manipulator is small, flexible, and universal.

BACK COVER FOR LOUDSPEAKER, AND LOUDSPEAKER

Disclosed in the present invention are a back cover for a loudspeaker, and a loudspeaker. Said back cover comprises a back cover body, of which one side is provided with a first connection portion; a connection assembly, which is provided with a first surface and a second surface, the first surface and second surface being connected with each other; the first surface extending and bending to form a contact, and the contact being provided with a conductor; the first surface being further formed with a connection hole; the second surface being provided with a limiting device and a second connection portion, the cross section of the limiting device being of a C-shape, and; the connection assembly being connected to the first connection portion of the back cover body by means of the second connection portion. Said contact is used for connectivity between the loudspeaker and the external environment; said connection hole is used for fixing the loudspeaker, or for connectivity between the loudspeaker ...

Municipal sludge drying treatment device and treatment method

The invention provides a municipal sludge drying treatment device and treatment method, relates to the technical field of sludge drying, and solves the problem that a filter screen at a suction pipe is easy to block in the prior art. The drying device comprises a drying device body, the drying device body comprises a shell, the shell is connected with a hot air pipe, a suction pipe and a collecting hopper, a belt conveying mechanism is arranged in the shell, a discharging opening is formed in one end of the shell, a filter screen is arranged at the suction pipe, and a cleaning assembly which does reciprocating motion and cleans the filter screen is arranged in the shell. The cleaning assembly moving in a reciprocating mode is arranged in the drying device, the filter screen is cleaned in time through movement of the cleaning assembly, and the situation that the filter screen is blocked, and consequently the odor suction efficiency is affected is avoided.

Buried pipeline analysis method and device, electronic equipment and storage medium

The invention provides a buried pipeline analysis method and device, electronic equipment and a storage medium. The method comprises the following steps: determining detection signal data of a buried pipeline corresponding to at least two detection modes; extracting feature vectors of the detection signal data, and inputting the feature vectors into a weight prediction model to obtain weight coefficients corresponding to the feature vectors output by the weight prediction model; after the weight coefficient corresponding to the pipeline analysis model is updated through the weight coefficient corresponding to each feature vector, each feature vector is input into the pipeline analysis model, and a pipeline analysis result output by the pipeline analysis model is obtained. According to the method, the pipeline analysis result can be accurately obtained, and the problem that the precision of the final pipeline analysis result is affected due to interference of different detection environments ...

Hydropower station gate underwater leaking stoppage method

According to the underwater leaking stoppage method for the hydropower station gate, leaking stoppage particles are screened, and when the leaking stoppage particles are filled, the size of the leaking stoppage particles loaded to the bottommost layer is evaluated according to the field water leakage condition. The leaking stoppage particles generally move obliquely downwards along with water flow in flowing water, and the higher the water flow speed is, the higher the movement speed is. When the leaking stoppage particles are put on the waterside of the gate, the leaking stoppage particles sink to the water bottom slowly due to the fact that the volume weight of the leaking stoppage particles is slightly larger than that of water, and when the leaking stoppage particles sink to the position near a water leakage point of the gate, the leaking stoppage particles are absorbed to the water leakage point along water flow under the action of surrounding high pressure due to the fact that pressure ...

Traffic flow prediction device, prediction method and prediction model construction method

The invention discloses a traffic flow prediction device and method and a prediction model construction method, and belongs to the technical field of traffic flow prediction. On the basis of a traditional time sequence prediction model, a traffic flow space-time diagram is constructed based on time sequence data of a traffic sensor, and graph structure information of the traffic flow space-time diagram is extracted by adopting a weighted-STSGCN algorithm to obtain space-time diagram characteristics; generating road network and trajectory pictures based on the road network and trajectory data, and extracting picture features by adopting ResNet to obtain visual features of the road network and the trajectory; and finally, fusing the space-time diagram features and the visual features through a dual-channel multi-modal fusion model based on MCB and Attention, and constructing a prediction model for realizing future traffic flow in combination with weather factors. By adopting the model constructed ...

FPCB STRUCTURE, SPEAKER MODULE, AND MANUFACTURING METHOD FOR FPCB STRUCTURE

An FPCB structure (1), a speaker module, and a manufacturing method for the FPCB structure (1), the FPCB structure (1) comprising an FPCB body (101) and a first bending segment (102) and a second bending segment (103) positioned at two ends of the FPCB body (101), originally all connected in an integral linear manner; the first bending segment (102) and the second bending segment (103) both bend at 180° relative to the plane on which the FPCB body is positioned, the direction of extension of both the first bending segment (102) and the second bending segment (103) being perpendicular to the direction of extension of the FPCB body (101); the first bending segment (102) and the second bending segment (103) are both positioned on the same side of the FPCB body (101) in the direction of width, the first bending segment (102), the FPCB body (101), and the second segment (103) together forming a U-shaped structure. The FPCB body (101), the first bending segment (102), and the second bending segment ...

RECEIVER

Disclosed in the present utility model is a receiver. The receiver comprises an outside housing, and a magnetic circuit system and a vibration system accommodated in the outside housing. The vibration system comprises a vibration diaphragm and a voice coil. The outside housing comprises a first housing and a second housing matching with each other. The first housing and the second housing are provided with electrical connection structures conductive to one another thereon. The first housing is provided with a first elastic piece on a sidewall thereof. One end of the first elastic piece is welded with a spring electrically connected to an external circuit, and the other end is exposed at the outside of the sidewall of the first housing. The second housing is provided with a second elastic piece on a sidewall thereof. One end of the second elastic piece is electrically connected to a lead wire of the voice coil, and the other end of the second elastic piece is exposed at the outside of the ...

METHOD, SYSTEM AND DEVICE FOR GROUP CALLBACK IN BROADBAND TRUNKING SYSTEM

Disclosed is a method for group callback in a broadband trunking system. The method comprises: a sending end sending a first group callback request to a trunking core network; the trunking core network selecting a callback receiving end according to the first group callback request; the trunking core network sending a second group callback request to the callback receiving end; and the callback receiving end receiving and storing the second group callback request, and when a pre-set condition is met, calling back a session group where the sending end is located in response to the second group callback request. In this way, according to the present invention, the communication efficiency can be improved, the requirements of related application scenarios can be satisfied, and the user experience can be improved.

Solvent regeneration method and device for acetonitrile method 1, 3-butadiene extraction process

The invention belongs to the technical field of ethylene cracking C4 fraction separation, and relates to a method and a device for regenerating a solvent in a 1, 3-butadiene extraction process by an acetonitrile method. The method comprises the following steps: extracting a circulating acetonitrile solvent to enter the middle part of a light component removal tower, obtaining an azeotrope containing organic matters at the tower top, and obtaining the acetonitrile solvent subjected to light component removal at the tower kettle; feeding the acetonitrile solvent subjected to light component removal into a heavy component removal tower to obtain a heavy component removal tower top regeneration solvent and a heavy component removal tower kettle heavy component product, and returning the heavy component removal tower top regeneration solvent to the extraction system. The device has the following beneficial effects that the organic-matter-containing waste liquid at the top of the light component ...

Operation maintenance method and device applied to power transmission and distribution line and electronic equipment

The invention relates to the technical field of power transmission and distribution lines, in particular to an operation maintenance method and device applied to a power transmission and distribution line and electronic equipment, and the method comprises the steps: collecting operation data of the power transmission and distribution line in a set time based on a standard state of the power transmission and distribution line, and carrying out the data integration of the operation data in the set time according to types, forming a tested data table; screening ideal states and abnormal states in the historical power transmission and distribution line operation data, taking the ideal state operation data as a reference group, taking the abnormal states as a comparison group, combining the reference group and the comparison group, and performing state analysis on the tested data table in a trend manner to obtain a tested data analysis result; and performing risk coefficient assessment on the ...

Intelligent regulation and control method and system for intelligent tool cabinet terminal

The invention discloses an intelligent regulation and control method and system for an intelligent tool cabinet terminal, and relates to the field of material scheduling, and the method comprises the steps: receiving work order information; matching N material access safety cabinets, and obtaining N groups of material storage states; selecting N material storing and taking safety cabinets according to the material quality calibration result to obtain M material storing and taking safety cabinets; route optimization is carried out based on the storage position state information and the storage amount state information of the M material access safety cabinets, the material demand quantity and the material demand position, and a material scheduling route is generated; and sending the material scheduling route and the material scheduling identity verification information to a material scheduling terminal for scheduling regulation and control. The technical problems of insufficient accuracy, ...

Government affair event extraction method and system, electronic equipment and storage medium

The invention discloses a government affair event extraction method and system, electronic equipment and a storage medium, and belongs to the technical field of event extraction in natural languages. The government affair event extraction method comprises the following steps of 1, extracting representation vectors of texts and various event types; step 2, obtaining factor vectors of the text to various events; step 3, event detection; step 4, domain knowledge construction and representation generation; 5, enhancing representation knowledge; and step 6, event argument extraction. By the adoption of the technical scheme, the workload of data annotation needed by a traditional event extraction technology can be greatly reduced, and the method has high universality and field adaptability.

Multi-channel optical device and optical module

The invention provides a multichannel optical device and an optical module.The multichannel optical device comprises a non-airtight sealing box, an airtight sealing box and a wavelength division multiplexer, the non-airtight sealing box comprises a base and a first side wall, and the first side wall is provided with a first through hole; the airtight sealing box is fixed to the portion, at the end opposite to the first side wall, of the base and penetrates through and is connected to the second side wall, a transparent window is arranged on one side wall of the airtight sealing box, and the end, provided with the transparent window, of the airtight sealing box is inserted into the non-airtight sealing box; the wavelength division multiplexer is arranged on the base in the non-airtight sealing box, the wavelength division multiplexer comprises more than two light inlet and outlet surfaces, one light inlet and outlet surface is arranged opposite to the transparent window, and the other light ...

COMMUNICATION CONFIGURATION METHOD AND APPARATUS FOR USE IN BROADBAND TRUNKING COMMUNICATION

Disclosed in the present invention are a communication configuration method and apparatus for use in broadband trunking communication. Provided in an embodiment of the present invention is a communication configuration method for use in broadband trunking communication, comprising: a trunking media function (TMF) receiving a session initiation protocol (SIP) invitation sent by a trunking control function (TCF); upon receiving the SIP invitation, the TMF establishing a TMF-side Tx tunnel between the TMF and an extensible gateway (xGW), wherein a Tx interface is configured between the TMF and the xGW; the TMF sending configuration parameters of the TMF-side Tx tunnel to the TCF; and the TMF receiving an SIP acknowledgement sent by the TCF, wherein the SIP acknowledgement includes configuration parameters of an xGW-side Tx tunnel established by the xGW between the xGW and the TMF.

Plate ultra-thickness detection device of sanding machine

The invention relates to a plate super-thickness detection device of a sander, and belongs to the field of sander equipment, the plate super-thickness detection device comprises two mounting plates arranged on a sander body, the mounting plates are symmetrically arranged on the two sides of a conveying belt in the conveying direction, a rotating shaft is rotationally connected to each mounting plate, and a connecting rod is connected to each rotating shaft; a fixing rod is fixedly connected to the bottom of the connecting rod, a limiting roller is detachably connected to the fixing rod, the axial direction of the limiting roller is perpendicular to the conveying direction of the conveying belt, and a gap for a plate to penetrate through is reserved between the limiting roller and the conveying belt; the top of the connecting rod is fixedly connected with an induction rod, a photoelectric induction switch is arranged at the position, close to the induction rod, of the mounting plate and ...

GROUP CALL DOWNLINK DATA PACKET TRANSMISSION METHOD, SYSTEM AND DEVICE

A group call downlink data packet transmission method, for use in effectively enhancing bearer network transmission efficiency and core network performance under the scenario of group call downlink transmission, thereby enhancing the capacity and performance of cluster services. In some feasible implementation manners of the present invention, the method comprises: a core network device establishes a multicast distribution tree for a group initiating a group call when the core network device receives a group call request, the multicast distribution tree using the core network device as a multicast source and using at least one base station to which multiple terminals in the group belong as a leaf node; the core network device distributes group call downlink data packets to the at least one base station by means of the multicast distribution tree, so that the group call downlink data packets are forwarded to multiple terminals by the at least one base station; and the core network device ...

SPEAKER MODULE

Disclosed in the present invention is a speaker module, comprising: a housing, the housing comprising an upper housing and a lower housing, the housing defining an inner chamber structure, at least one of the upper housing and the lower housing being provided with a micro-well array; and a speaker monomer, comprising a magnetic circuit component and a vibrating component, the vibrating component dividing the inner chamber structure into a front chamber and a rear chamber, the magnetic circuit component being provided with a magnetic gap having a predetermined pattern, the magnetic circuit component being disposed close to the lower housing. A technical problem to be solved by the present invention is the heat dissipation of the speaker module.

Multi-channel radio frequency optical module

The invention discloses a multi-channel radio frequency optical module. The optical module comprises a shell, a circuit board and a plurality of photoelectric chips. The shell is provided with an accommodating cavity, an optical interface and an electrical interface, and the circuit board and the plurality of photoelectric chips are arranged in the accommodating cavity; the circuit board comprises a first end part which is relatively close to the plurality of photoelectric chips and a second end part which is electrically connected with the outside through the electrical interface; the circuit board is provided with a plurality of radio frequency signal lines for transmitting analog signals, and the plurality of radio frequency signal lines are electrically connected with the plurality of photoelectric chips in a one-to-one correspondence manner; and each path of radio frequency signal line comprises a first section arranged at the first end part, a second section arranged at the second ...

Tooth-shaped chain and chain transmission system

The invention relates to the field of chains, and particularly discloses a tooth-shaped chain and a chain transmission system. The tooth-shaped chain comprises a plurality of first chain links and a plurality of second chain links, each first chain link comprises at least two first chain plates arranged in parallel, and each first chain plate is provided with two first pin holes; the second chain link comprises at least two second chain plates which are arranged in parallel, and each second chain plate is provided with two second pin holes; the first chain plate and the second chain plate are tooth-shaped chain plates; the inner wall face of the first pin hole comprises a main bearing face, an auxiliary bearing face and an inner side wall face, and the projection of the auxiliary bearing face on the axial section is in a circular arc shape. The side face of the pin shaft comprises a main transmission face and an auxiliary transmission face, the main transmission face is matched with the ...

Loudspeaker module group

... 本实用新型提供一种扬声器模组，包括模组壳体以及收容在模组壳体内的扬声器单体，其中，在模组壳体的内壁设置有密集排布的微型槽；微型槽的深度小于模组壳体的壁厚。利用上述实用新型，能够通过微型槽调整扬声器腔体的体积；同时，还能够增强壳体的散热能力。 ...

Floating manipulator access car device

... 本实用新型公开了一种浮动式机械手存取车装置，包括导向件和机械手，所述导向件的上方设有盖板，在盖板下方设有通过导向件引导机械手进入的收纳空间。所述导向件沿车身长度方向布置，所述机械手包括移动式的安装架、铰接在安装架上且匹配有驱动机构的夹臂，所述安装架与导向件滑动配合。所述安装架为框架结构，且具有一根与导向件垂直的横梁，该横梁上开设有供导向件通过的导向孔。本实用新型提供了的浮动式机械手存取车装置，将机械手隐藏在盖板的下方，露出停车面的部分较小，增加了对车辆的适用性。 ...