Automobile decorative strip

The invention discloses an automobile decorative strip. The automobile decorative strip comprises an arc-shaped body, a plurality of clamping parts which are arranged on the inner surface of the arc-shaped body at intervals along the length direction of the arc-shaped body, an oil ink layer coated on the outer surface of the arc-shaped body, and a thin film stuck on the surface of the oil ink layer; and a light-transmitting seam is formed by the oil ink layer along the length direction of the arc-shaped body. According to the automobile decorative strip, oil ink can be fixed between a plastic body and the thin film very well by adopting a three-layered structure including the plastic body, the oil ink and the thin film; when the automobile decorative strip is used, the automobile decorative strip is not easy to scratch so that the decoration effect of the decorative strip is not influenced. The thin film has a protection effect so that the appearance of the decorative strip is smooth and ...

Unmanned aerial vehicle parking platform

The invention relates to the technical field of parking platforms, in particular to an unmanned aerial vehicle parking platform. Comprising a platform assembly, a righting assembly, a clamping assembly and a connecting assembly, the clamping assembly comprises a clamping motor set, a rack positioning block, a transmission gear, a rack set, a rack guide block and a turnover rod set, the connecting assembly is used for connecting the platform assembly with a mobile device, and the righting assembly is used for adjusting the falling position of the unmanned aerial vehicle. The platform assembly provides installation conditions for the righting assembly and the clamping assembly and is used for parking the unmanned aerial vehicle, the clamping assembly is used for clamping and fixing the unmanned aerial vehicle, and parking of the unmanned aerial vehicle is achieved. And under the action of the transmission gear, the turnover rod combination can be driven to turn upwards to press on the foot ...

Electric-power pressure adjusting apparatus for quartz glass vacuum hydroxyl removal equipment

An electric-power pressure adjusting apparatus for quartz glass vacuum hydroxyl removal equipment comprises an electric-power pressure adjusting device temperature controller for converting alternating current into direct current and a thermocouple for detecting temperature in a hydroxyl removal furnace; an electric-power pressure adjusting device, a temperature controller and a thermocouple which are sequentially and electrically connected, wherein the electric-power pressure adjusting device is provided with an output terminal for connecting with a load; the temperature controller is used for sending out control signals to the electric-power pressure adjusting device according to output signals of the thermocouple, the electric-power pressure adjusting device is used for controlling the size of direct-current power supply output by the output terminal according to the control signals sent out by the temperature controller so that the heating power of the electric-power pressure adjusting ...

Angle adjusting mechanism of steering wheel of four-wheel all-terrain vehicle

The invention discloses an angle adjusting mechanism of a steering wheel of a four-wheel all-terrain vehicle which comprises a direction column connector with a U-shaped top, a large through hole and a small through hole are formed in the lateral face of a U-shaped groove, and a nut is coaxially welded to the outer side of the end face of the small through hole; the lower end of a steering wheel connection column is cylindrical and arranged in the U-shaped groove, a center through hole is formed in the center, and the end face, facing the large through hole, of the steering wheel connection column is provided with end teeth and a cylindrical groove; a guide groove is formed in the large through hole, and a guide column is provided with a guide strip in a matched mode; the guide strip can slide along the guide groove; the end face, facing the steering wheel connection column, of the guide column is provided with end teeth and a cylindrical groove in a matched mode; a through hole is formed ...

Pitch heating box of asphalt pavement regeneration comprehensive repairing vehicle

The invention relates to an asphalt heating box of an asphalt pavement regeneration comprehensive repairing vehicle. A conduction oil circulating pump and a programmable controller are arranged at the lower part of a support, a box body is arranged at the upper part of the support, an insulating layer is arranged in the interlayer of the box body, a partition plate for partitioning the interior of the box body into an upper asphalt cavity and a lower heating cavity is arranged inside the lower part of the box body, a conduction oil spiral pipe heater communicated with the conduction oil circulating pump by virtue of a conduction oil control valve on a pipeline is arranged at the bottom in the heating cavity of the box body, a swirl-shaped line pipe heater, which is communicated with the conduction oil spiral pipe heater by virtue of a pipeline and is also communicated with the conduction oil recycling pump, is arranged in the asphalt cavity, a chimney, a stirrer and a feeding pipe are arranged ...

Intelligent street lamp of zigbee technique

The utility model discloses an intelligent street lamp of zigbee technique, which comprises a lamp stand, the top of lamp pole is equipped with the lamp shade, be equipped with the ballast in the lamp shade, be equipped with the radio communication ware in the ballast, radio communication ware and the one end of keeping apart electric capacity with be connected, the other end of keeping apart electric capacity with the lamp shade is connected, the radio communication ware is connected with intelligent master controller through the zigbee network, it is connected according to the series system with low pressure drop inductance rectifier to keep apart electric capacity, the utility model has the advantages of: simple structure, intelligent degree is high, and the cost is reduced has prolonged life, and job stabilization nature is high.

Experimental device for mechanical transmission characteristics of coiled tubing in deepsea simple steel catenary riser

The invention relates to an experimental device for mechanical property analysis of a coiled tubing in a deepsea simple steel catenary riser, particularly an experimental device for analysis of the mechanical properties of the coiled tubing in the deepsea simple steel catenary riser. Both ends of a simulated riser 18 are fixed by two fixation devices, and by adjusting the angle and height of a pipe end angle adjustment fixation device 8, the inclination angle of the simulated riser can be changed. By adjusting the angle and height of a hydraulic injection device 4, the injection direction of a simulated coiled tubing 19 can be changed, thus ensuring that the injection end of the simulated coiled tubing and the simulated riser keep a concentric state. The hydraulic injection device 4 is employed to perform injection operation on the simulated coiled tubing, and in the operation process, the injection speed and the coiled tubing displacement are recorded. The stress condition of the coiled ...

Front-wheel steering mechanism

The invention discloses a front-wheel steering mechanism, which comprises a front wheel hub, a front wheel spindle, a left-brake fitting seat, a right-brake fitting seat and a connection seat. The left-brake fitting seat and the right-brake fitting seat are symmetrically sleeved between the front wheel hub and the front wheel spindle; the left-brake fitting seat, the right-brake fitting seat and the front wheel hub are supported through bearings; the connection seat is arranged between the left-brake fitting seat and the right-brake fitting seat, and the connection seat, the left-brake fitting seat and the right-brake fitting seat are fixedly connected into a whole through bolts; the middle part of the front wheel spindle is vertically provided with a mounting hole, the connection seat is provided with a connecting shaft which passes through the mounting hole, and the connecting shaft is matched with the mounting hole through a taper bearing; and the left-brake fitting seat or the right-brake ...

Polarization conversion color-combination prism

The invention provides a polarization conversion color-combination prism. The polarization conversion color-combination prism comprises a first prism, a third prism and a second prism, wherein the sections of first prism and third prism have a right angled triangle shape, and the section of second prism has an interior angle shape and the second prism is equal to or complementary to the first prism and third prism; any right angle surface of third prism and the inclined plane of first prism are connected with the corresponding surfaces of the second prism respectively, and the polarization conversion and synthesis of the three primary lights, such as red primary light, green primary light and blue primary light is realized by adopting film coating technology and a wave plate; and the polarization conversion color-combination prism has low manufacturing cost and high light-combination efficiency, and can be widely applied to the projection display of liquid crystal display (LCD) and liquid ...

Super fine synthetic leather vibration staking machine

The utility model provides a super fine synthetic leather vibration staking machine, includes two sets of upward pinion rack subassembly (21), lower pinion rack (22), camshaft connecting rod device (25, 27), main motor, goes up elasticity centre gripping curtain (23), lower elasticity centre gripping curtain (24) and frame (26), the pinion rack subassembly includes pinion rack (211), base plate (212) and hydro -cylinder (216) in every group, is respectively fixing a set of worm gear riser (214, 215) on going up four angles of pinion rack, and the axle of worm wheel (214) in this worm gear riser be the pinion rack degree of depth promptly and adjusts pole (215), and four worm (213) of organizing the worm gear risers are driven by one accommodate motor (222). Four available accommodate motor of degree of depth regulation pole drive, four worm gear of the group risers of going up in the pinion rack subassembly are adjusted, are used for changing the interval between upper and lower pinion ...

Front wheel suspended shock absorbing mechanism for motorcycle

The invention discloses a front wheel suspended shock absorbing mechanism for a motorcycle, which comprises a shock absorber, a triangular connecting plate and a front axle connecting plate and is characterized in that: the upper end of the shock absorber is connected with a frame; the front axle connecting plate is arranged under the triangular connecting plate; the triangular connecting plate is provided with a front forward tip end, a rear backward tip end and a lower downward tip end; the front forward tip end is connected with the lower end of the shock absorber through a bolt; the rear backward tip end is connected with the frame; and the lower downward tip end is connected with the middle position of the front axle connecting plate; and the front axle connecting plate is provided with a front tip end connected with the front axle and a rear tip end connected with the frame through the bolt. Compared with the prior art, the mechanism improves the shock absorbing effect of the motorcycle ...

Preparation method of optically active 3,4-dihydro-2H-1-benzopyran-2-carboxylic acid and 3,4-dihydro-4-O-2H-1-benzopyran-2-carboxylic acid compounds

The invention provides a method for preparing 3,4-dihydro-2H-1-benzopyran-2-carboxylic acid compound (I) and 3,4-dihydro-4-O-2H-1-benzopyran-2-carboxylic acid compound (II) which have optical activity. In the method, phenol derivatives and N-substitute maleimide are used as starting materials, the (II) compound is prepared by condensation, hydrolysis, separation, acylation and cyclization, and the (I) compound is prepared by reduction and hydrogenolysis of the compound (II). The invention has advantages of high optical purity of the obtained products, cheap and easily-obtained raw materials used in the synthetic process, mild reaction conditions, high yield, easy and simple operation, low cost and less ''three wastes'' pollution. (In the formula, R1 and R2 represent H, halogen, C1-C12alkyl, C3-C7cycloalkyl, C6-C12aryl, C1-C12alkoxy, C6-C12aryloxy, C1-C12alkylthio, C6-C12arylthioethyl, nitryl, carboxyl, hydroxyl, CF3, and NR3R4; R3 and R4 represent H, C1-C12alkyl and C6-C12aryl; R1 and R2 ...

Desert soil moisture conservation method and application

The invention provides a desert soil moisture conservation method and an application, belonging to the technical field of desert transform. Original resources are used for transforming the desert, a soil layer is reconfigured to build soil moisture conservation ridges, fine earth, sandy soil and gravel fill back from the bottom up, and the gravels are stacked at one wind block side of the ridge. The invention utilizes the original resources to apply the no-irrigation conservation of desert by adjusting measures to local conditions. The application are as follows: the conservation ridges are used to plant cash crops, and a large area of wild flowers and wild grasses are planted to realize desert oasis, thus not only improving the soil texture of desert areas and the growing environment of cash crops, and but also alleviating lack in the water source because rainfall is rare and ground water is difficult to use and the like. In addition, the invention can solve the problems of strong wind ...

Webpage file processing method and device

The embodiment of the invention provides a webpage file processing method and device.The method is applied to a client side and comprises the steps that a packaged file, mapping information and customization information of a target webpage are obtained; wherein the packaged file is obtained by packaging a plurality of code files of a target webpage by the server, the mapping information comprises a mapping relationship between each code snippet in the packaged file and a first path, and the customized information comprises a second path; for any code snippet in the packaging file, after the code snippet is operated, matching a first path of the code snippet with a second path in the customized information; and determining whether to replace the operation result of the code snippet based on the matching result. Through packaging processing, the opening speed of the webpage is increased; the operation result is dynamically replaced during operation, the influence of damage of a directory ...

Synthetic method of PHBA

The invention discloses a synthetic method of PHBA, and belongs to the technical field of pharmaceutical synthesis. According to the method, L-glutamic acid is taken as the raw material, and is subjected to diazotization, hydrolysis, aminolysis and Hoffman degradation to obtain (S)-4-amino-2-hydroxybutyrate which is not purified and used directly for synthesizing (S)-alpha-hydroxyl-gamma-N-phthaloylaminobutyric acid. The synthetic method solves the problems that the conventional method is cumbersome in operation, high in energy consumption and serious in environmental pollution due to the fact that ion exchange resin is required to be used repeatedly for separation and purification of a product, steps of reactions are organically combined, the whole process is considered, and numerous distillation and purification processes are omitted, so that the whole process is greatly simplified, the total yield of the product is larger than 60%, the content of the product is larger than 99.0%, the ...

Injection-production well of gas storage

The invention relates to the technical field of gas storage injection and production, in particular to an injection and production well of a gas storage, which comprises a first technical casing, a second technical casing, a third technical casing and a fourth technical casing. The second technical casing pipe is inserted into the first technical casing pipe, and the bottom of the second technical casing pipe is located in the cover layer bottom; and a production casing assembly suspended in the second technical casing to be located in the reservoir for collecting or injecting gas. According to the arrangement, the cover layer is completely packed through the first technical casing and the second technical casing, leakage is avoided, the sealing performance is guaranteed, the injection and production efficiency is improved, economic losses are avoided, pressure systems of the cover layer and the reservoir are different, after the cover layer is packed, targeted drilling can be conducted ...

Hand sample machine for extracting sea components in seal island superfine fiber synthetic leather base cloth

The invention discloses a hand sample machine for extracting sea components in seal island superfine fiber synthetic leather base cloth, comprising a stand (1), an extraction groove (11), an evaporation groove (4), two cloth winding rolls (5), two motors (12), a pressing roll (9), a guide roll (10), two pressure adjusting air cylinders (8) and a U-shaped diversion pipe (7), wherein the pressing roll and the guide roll are positioned at the bottom of the extraction groove; the pressing roll is positioned above the guide roll; piston rods of the two pressure adjusting air cylinders respectively press two ends of the pressing roll; the two cloth winding rolls are positioned at the upper part of the extracting groove; each cloth winding roll is driven by one motor; a steam coiled pipe (2) for heating is arranged at the bottom of the evaporation groove; the extraction groove is adjacent to the evaporation groove; a partition board (3) is positioned between the extraction groove and the evaporation ...

Meteorological phenomena and air quality monitoring's street lamp

The utility model discloses a meteorological phenomena and air quality monitoring's street lamp, including the light pole, the upper portion of light pole is equipped with the air quality monitoring sensor, the air quality monitoring sensor passes through the controller and links to each other with data processing module, the air quality monitoring sensor includes suspended particles watch -dog and automobile exhaust detector, the lower part of light pole is equipped with the air purification box, be equipped with automotive exhaust purifying agent and air exhauster in the purification box, the one side that purifies the box is equipped with the air intake opposite side and is equipped with the air outlet, the air exhauster with the controller links to each other, the utility model has the advantages of: not only can monitor atmospheric composition, obtain the air pollution grade, can carry out air pollution improvement and the adjustment of air quality humidity moreover, improve air quality ...

Intelligence street lamp based on wireless sensor network

The utility model discloses an intelligence street lamp based on wireless sensor network, including the light pole, the upper portion of light pole is equipped with the air quality monitoring sensor, the air quality monitoring sensor passes through the controller and links to each other with data processing module, data processing module is connected with wireless transmission module, wireless transmission module includes wireless host computer transport module and the quick -witted transport module of wireless follow, wireless host computer transport module and distance host electricity mutually are connected, the quick -witted transport module of wireless follow with data processing module electricity mutually connects, the quick -witted transport module of wireless follow and wireless host computer transport module adopt wireless mode bidirectional data, the utility model has the advantages of: not only can monitor atmospheric composition, obtain the air pollution grade, can carry out ...

Method for preparing 3,4-dihydro-4-oxy-2H-1-benzopyran-2-carboxylic acids compounds

The invention provides a preparation method of the 3, 4-dihydro-4-oxo-2 H-1-benzopyran-2-carboxylic acid compound. The method uses the phenol derivatives (A) and N-substituted maleimide-imide (B) as the starting materials; after the steps of condensation, hydrolysis, cyclization and so on, the (I) can be made. The invention has the easily accessible raw materials, mile reaction conditions, simpleoperation, high collection rate, and friendly reaction environment. (In the formula, R1, R2 stand for H, halogen, C1 to C12 alkyl, C3 to C7 cycloalkyl, C6 to C12 aryl, C1 to C12 cycloalkoxy nitro, carboxyl, hydroxyl, CF3, NR3R4; R3, R4 stand for H, C1 to C12 alkyl, C6 to C12 aryl.

Novel urea type compound preparation method

The invention discloses a novel urea type compound preparation method, and belongs to the technical field of organic synthesis. 3-halogenate oxidation indole as shown in a structural formula II reacts with O-tosyl-N-carbobenzoxy-hydroxylamine as shown in a structural formula III for 10 to 30 hours at 0 DEG C to 100 DEG C in an organic solvent under the existence of alkali, then organic acid is added, the reaction is conducted continuously, after complete reaction is finished, the solvent is dried by distillation, separated and purified, and a product is obtained. By means of the method, utilization of poisonous phosgene and substitutes of the poisonous phosgene is avoided, and raw materials and intermediate products are stable and not prone to being oxidized; the intermediate products and end-products are easy to separate and purify; the operation is simple, the reaction condition is moderate, the reaction yield is high, and the yield can reach 92%.

Vacuum dehydroxylation furnace for semiconductor quartz glass products

The invention discloses a vacuum dehydroxylation furnace for semiconductor quartz glass products. The furnace comprises a furnace door arranged at one side of the furnace body. A trolley is arranged inside the furnace body. The trolley is fixedly connected with the furnace body. The bottom of the trolley has rollers. A motor is connected with the outside of the trolley. The furnace body has a furnace body bottom opposite to the furnace door. The furnace door and the furnace body bottom are provided with air inlets. Air outlets are respectively arranged above and below the middle part of the furnace body. The furnace door, the furnace door bottom and upper surface, lower surface, front surface and rear surface of the furnace body are respectively provided with a heater. The heater in each direction is individually connected with a temperature controller. According to the invention, the charging difficulty of a large-aperture quartz tube is solved, safety and operability of loading and unloading ...

Semi -mounted formula transport vechicle

The utility model provides a semi -mounted formula transport vechicle, includes truck goods platform and tractor, the rear portion of tractor meets through the front portion of power gooseneck with truck goods platform, the power gooseneck includes the gooseneck, the rear portion of gooseneck be equipped with with truck goods platform front end articulated hookup seat, be equipped with lift cylinder between hookup seat and gooseneck, have a steering cylinder in that the left and right sides of gooseneck symmetry is articulated, be equipped with drive mechanism between the front portion of gooseneck and tractor. The utility model discloses two cross connection axles utilizing that the direction is extended about along and two vertical coupling spindles that extend along the fore -and -aft direction respectively, can be around as the unsteady balance that is applicable to different unsmooth road surfaces tractor about, utilize the towing pin axle as pulling the use, couple the tractor through ...

Method for preparing 3,4-dihydro-4-oxy-2H-1-benzopyran-2-carboxylic acids compounds

Novel synthesis method of furoxan

The invention discloses a novel synthesis method of furoxan, and belongs to the fields of organic chemistry and medicine. The synthesis method comprises the following steps: weighing alpha-nitroxime and sulfonyl chloride, adding the weighed alpha-nitroxime and sulfonyl chloride into a solvent, placing the mixture into a reactor, carrying out reactions at a temperature of -10 to 50 DEG C under stirring, adding alkali, keeping on stirring, and finally carrying out separation and purification after the reactions completely finish, so as to obtain the furoxan. The reaction conditions are mild, asymmetrical furoxan compounds with different substituents can be obtained, the application range of the method is wide, the price of the raw material sulfonyl chloride is lower than that of NCS, the whole reaction period is short and lasts about 20 minutes, the cost is low, the yield can reach 95% or more and is higher than that of methods which have been reported before, moreover, no pollutant is discharged ...

Heavy jar of body secondary haulage car

The utility model provides a heavy jar of body secondary haulage car, including the installation jar the body a loading platform, the loading platform is including two boundary beams of the left and right sides that bear jar the body, all is equipped with the installation jar U type positioning seat that body base was used at the inside wall of two boundary beams, around two boundary beams both ends respectively the symmetry be equipped with two loading platform side -to -side adjustment mechanisms, extension section in the middle of the middle part of controlling two boundary beams is equipped with according to jar body physical length elongated. The utility model discloses jar two boundary beams of the left and right sides of the body are born in the utilization to and and control the tie -beam that the boundary beam was pegged graft, can reduce investment cost according to the linear expectation tie -beam of required transportation article, utilize the front end and the rear end articulated ...

Polarization conversion color-combination prism combination

The invention provides a polarization conversion color-combination prism combination, comprising a first prism with right-angle triangle cross section, a third prism with a rectangular cross section, and a diamond-shaped second prism with an interior-angle cross section, wherein the interior angle is complementary with the acute angle of the first prism; any right-angle surface of the third prism and an inclined surface of the first prism are respectively connected with the corresponding surfaces of the second prism, and then the coating technology and the usage of a wave plate are combined, so as to realize polarization conversion and combination of red, green and blue primary color lights; the manufacturing cost is low, the combination efficiency is high, so as to be widely applied to LCD or LCoS projection display.

Polarization conversion color-combination prism combination

The invention provides a polarization conversion color-combination prism combination, comprising a first prism with right-angle triangle cross section, a third prism with a rectangular cross section, and a second prism with a diamond-shaped cross section, wherein the interior angle of the cross section is complementary with the acute angle of the first prism; any right-angle surface of the third prismand an inclined surface of the first prism are respectively connected with the corresponding surfaces of the second prism, and then the coating technology and the usage of a wave plate are combined, so as to realize polarization conversion and combination of red, green and blue primary color lights; the manufacturing cost is low, the combination efficiency is high, so as to be widely applied to LCD or LCoS projection display.

Synthetic leather dry process wainscot and aftertreatment organic waste gas recovery unit

The utility model provides a synthetic leather dry process wainscot and aftertreatment organic waste gas recovery unit, includes the hot -blast heat exchanger of heat pipe formula (1), first absorption tower (2), second absorption tower (3), first circulating pump (5), second circulating pump (6) and first section oven (4). Synthetic leather dry process wainscot and aftertreatment organic waste gas get into from the high temperature side import of the hot -blast heat exchanger of heat pipe formula, and the exhaust gas temperature reduces the back, gets into first absorption tower, first absorption tower uses the high vapour pressure of high boiling point again water -soluble solvent absorb the weak polar solvent among the organic waste gas, and then get into the second absorption tower as the absorption liquid, second absorption tower water is the absorption liquid, DMF among the absorption organic waste gas. The weak polar solvent among the organic waste gas can be detached, the DMF among ...

Intelligence multifunctional road illumination lamp pole

The utility model discloses an intelligence multifunctional road illumination lamp pole, including the hollow cylinder body of rod, the middle part of the body of rod is equipped with a package and winds the automotive exhaust purifying box of the body of rod, be equipped with the automotive exhaust purifying agent in the purification box, be equipped with a plurality of through -holes on the lid of purification box, the top level of the body of rod has been equipped with the water spray pole, the water spray pole is equipped with a plurality of fog nozzles, the water spray pole passes through the pipeline and sets up the water storage box of the body of rod is linked together, and is equipped with the water pump, the water pump is equipped with the controller, the controller still is connected with humidity transducer, humidity transducer sets up the middle part outside of the body of rod, the upper portion cladding of the body of rod has round photovoltaic power generation membrane, the ...

Indole imine spirocyclopropane compound and preparation method thereof

The invention discloses an indole imine spirocyclopropane compound with a structure as shown in a formula (I) and a preparation method thereof. Comprising the following steps: taking indole imine as a raw material, and reacting with aryl vinyl sulfuryl fluoride under the catalysis of organic or inorganic base to obtain a target object. The compound disclosed by the invention is a substance with a novel structure, raw materials are easy to obtain, reaction conditions are mild, the compound is green and environment-friendly, and the operation is simple and convenient.

3, 3'-disubstituted 3-pyrrole oxoindole compound and asymmetric synthetic method thereof

The invention discloses a 3, 3'-disubstituted 3-pyrrole oxoindole compound and an asymmetric synthetic method thereof and belongs to the fields of organic chemistry and medicines. The structure of the compound takes the 3, 3'-disubstituted 3-pyrrole oxoindole compound as a framework, and the type of indole alkaloid is enriched so as to provide a sufficient compound source for screening pharmaceutical activity. Meanwhile, a synthetic method of the compound is provided. The asymmetric synthetic method comprises the following steps: dissolving 3-pyrrole oxoindole, an electrophilic reagent and a chiral catalyst in an organic solvent; carrying out a reaction at (-20)-25 DEG C; after reaction, separating and purifying to obtain the compound. The method is mild in reaction condition, easy in obtaining of raw materials and catalyst, free from metal residues, simple to operate, high in yield and further high in stereoselectivity.

Special transport vechicle of a tower section of thick bamboo

The utility model provides a special transport vechicle of a tower section of thick bamboo, bears the weight of the assembly including drawing after bearing the weight of an assembly and a tower section of thick bamboo before main car, the tower section of thick bamboo, all installs the supporting seat through universal hookup bulb bear the weight of the assembly after, before a tower section of thick bamboo on, is equipped with between two supporting seats around to be used for coordinating around two special clamping assemblies of tower section of thick bamboos of a clamping tower section of thick bamboo, is equipped with tower section of thick bamboo lifting adjusting mechanism between tower section of thick bamboo special use clamping assembly and the supporting seat. The utility model discloses utilize setting up around the special clamping assemblies of two tower section of thick bamboos that are used for coordinating a clamping tower section of thick bamboo between two supporting ...

Technology and device for separating polyethylene from methylbenzene and recycling polyethylene and methylbenzene in preparation of superfine fibers

The invention relates to technology for separating polyethylene from methylbenzene and recycling the polyethylene and the methylbenzene in preparation of superfine fibers. The technology comprises the following steps of: (1) evaporating polyethylene-containing methylbenzene solution by a pre-evaporator till the methylbenzene accounts for less than 50 percent based on the weight of the polyethylene-containing methylbenzene solution; (2) evaporating by a first horizontal tube evaporator till the methylbenzene accounts for less than 15 percent based on the weight of the polyethylene-containing methylbenzene solution; (3) evaporating by a second tube evaporator till the methylbenzene accounts for less than 1 percent based on the weight of the polyethylene-containing methylbenzene solution; (4) condensing and recycling the methylbenzene vapors obtained in the steps (1), (2) and (3); and (5) pelletizing the polyethylene obtained in the step (3). The corresponding device for separating the polyethylene ...

Front wheel suspended shock absorbing mechanism for motorcycle

The invention discloses a front wheel suspended shock absorbing mechanism for a motorcycle, which comprises a shock absorber, a triangular connecting plate and a front axle connecting plate and is characterized in that: the upper end of the shock absorber is connected with a frame; the front axle connecting plate is arranged under the triangular connecting plate; the triangular connecting plate is provided with a front forward tip end, a rear backward tip end and a lower downward tip end; the front forward tip end is connected with the lower end of the shock absorber through a bolt; the rear backward tip end is connected with the frame; and the lower downward tip end is connected with the middle position of the front axle connecting plate; and the front axle connecting plate is provided with a front tip end connected with the front axle and a rear tip end connected with the frame through the bolt. Compared with the prior art, the mechanism improves the shock absorbing effect of the motorcycle ...

Hand sample machine for extracting sea components in seal island superfine fiber synthetic leather base cloth

The invention discloses a hand sample machine for extracting sea components in seal island superfine fiber synthetic leather base cloth, comprising a stand (1), an extraction groove (11), an evaporation groove (4), two cloth winding rolls (5), two motors (12), a pressing roll (9), a guide roll (10), two pressure adjusting air cylinders (8) and a U-shaped diversion pipe (7), wherein the pressing roll and the guide roll are positioned at the bottom of the extraction groove; the pressing roll is positioned above the guide roll; piston rods of the two pressure adjusting air cylinders respectivelypress two ends of the pressing roll; the two cloth winding rolls are positioned at the upper part of the extracting groove; each cloth winding roll is driven by one motor; a steam coiled pipe (2) forheating is arranged at the bottom of the evaporation groove; the extraction groove is adjacent to the evaporation groove; a partition board (3) is positioned between the extraction groove and the evaporation ...

Dry type methylbenzene removal method for microfiber synthetic leather

The invention discloses a dry type methylbenzene removal method for microfiber synthetic leather. Microfiber base cloth subjected to polyethylene extraction from methylbenzene is introduced into a dry type methylbenzene evaporation tank (4) for methylbenzene evaporation. The dry type methylbenzene evaporation tank comprises a tank body (48), a heating pipe (45), a plurality of transmission rollers (42), a plurality of large-diameter hollow heating rollers (41) and two circulating fans (44); a base cloth inlet (49), a base cloth outlet (50) and a methylbenzene steam outlet (51) are formed in the wall of the tank body; a plurality of steam heating coil pipes (43) are arranged around each circulating fan; the microfiber base cloth turns around back and forth between the hollow heating rollers and the transmission rollers and is attached to the hollow heating rollers in a large-wrapping-angle manner; methylbenzene in the microfiber base cloth is evaporated to form methylbenzene steam which ...

Preparation method of tamsulosin hydrochloride with high optical purity

The invention discloses a preparation method of tamsulosin hydrochloride with high optical purity, and belongs to a medicine technology and a chemical field. A recrystallization method is adopted, crude products of (R)-5-(2-(2-(2-ethoxyphenoxy) ethyl amino) propyl)-2-methoxyl phenyl sulfonamide hydrochloride are refined, so that pure products of the (R)-5-(2-(2-(2-ethoxyphenoxy) ethyl amino) propyl)-2-methoxyl group sulfonamide hydrochloride of which the e.e. value is larger than 99.8% is obtained; a crystallizing solvent adopted by the recrystallization method is a mixed solvent consisting of an organic solvent and water, the organic solvent is selected from one of methanol, ethyl alcohol, acetone, acetonitrile and isopropyl alcohol, and the recrystallization temperature is under 15 DEG C. The preparation method disclosed by the invention is simple to operate, short in period, low in cost and good in repeatability, and can solve the inevitable problem of rework for treatment in the industrial ...

Oscillating staking machine for microfiber synthetic leather

The invention discloses an oscillating staking machine for microfiber synthetic leather. The oscillating staking machine comprises two groups of upper toothed plate assemblies (21), a lower toothed plate (22), crankshaft connecting rod devices (25 and 27), a main motor, an upper elastic clamping curtain (23), a lower elastic clamping curtain (24) and a rack (26), wherein each group of upper toothed plate assemblies comprises an upper toothed plate (211), a substrate (212) and a cylinder (216); a group of worm and gear lifters (214 and 215) are fixed at four corners of each upper toothed plate; an upper toothed plate depth adjusting rod (215) is adopted as a shaft of a worm wheel (214) in each worm and gear lifter; worms (213) of the four groups of worm and gear lifters are driven by an adjusting motor (222); and the four depth adjusting rods in the upper toothed plate assembles are capable of driving the four groups of worm and gear lifters to adjust by virtue of the adjusting motor to ...

Coix lacryma-jobi float breeding method and breeding nutrient solution used in method

The invention discloses a coix lacryma-jobi float breeding method and a breeding nutrient solution used in the method. The method comprises the steps of building a float breeding pond, preparing a breeding matrix, panning the matrix, conducting seeding, placing a floating disc, preparing the nutrient solution, taking breeding management measures and conducting exercising seedling. The volume ratio of the breeding matrix is prepared according to the fact that yellow loam: plant ash: perlite: pig manure is 4:2:2:2, the yellow loam is smashed firstly and then sieved, the plant ash, the perlite and the pig manure are evenly mixed, and are evenly wetted by clean water with the 5 percent of matrix, and a plastic thin film conducts covering, heating and thorough decomposing for 10 days. The breeding nutrient solution comprises, by weight, 29.4 parts of ammonium nitrate, 1.0 part of microelement, 17.4 parts of coarse whiting, 16.2 parts of additives and 36.0 parts of potassium sulphate. The coix ...

Book borrowing desk for library

The invention belongs to the technical field of reading desks, and relates to a library book borrowing desk which is characterized by comprising a desktop, magnetic attraction type storage boxes, a transmission belt and a storage box, six return cavities are symmetrically formed in the desktop, reinforcing ribs are fixedly arranged on the end face of the bottom end of the desktop, and the two magnetic attraction type storage boxes are symmetrically arranged on the reinforcing ribs; a return cavity is formed in the magnetic type storage box and communicated with the magnetic type storage box, a motor wheel is arranged in the magnetic type storage box, a transmission belt is arranged on the motor wheel in a friction transmission mode, and six storage boxes are placed on the transmission belt. Through the design of the table top, the magnetic type storage box, the transmission belt and the storage box, borrowed books can be returned through the storage box, meanwhile, the storage box is driven ...

Continuous melting furnace capable of controlling wall thickness at high precision

The invention provides a continuous melting furnace capable of controlling wall thickness at high precision. A core bar is positioned above a former, and the top of the core bar is fixed with a core bar fixing device; the outer edge of the core bar fixing device is fixed with the inner wall of a crucible of the continuous melting furnace; and the length of the core bar is 1/3 of that of the crucible or below. According to the invention, the precise positioning of the former and the core bar can be realized by the core bar fixing device, so that materials can be uniformly discharged, thereby solving the problem that the wall thickness is nonuniform due to instability or swaying of the core bar and former caused by flow of a quartz solution and high temperature deformation, and ensuring that the wall thickness of a formed quartz tube is uniform. Besides, the continuous melting furnace provided by the invention also comprises the core bar fixing device, so that the clearance between the core ...

Grading pressure relief device

The invention relates to a graded pressure relief device and belongs to the technical field of pressure relief equipment, the graded pressure relief device comprises a high-pressure pump, a liquid tank and a multi-stage pressure relief pipeline, the liquid inlet end of the high-pressure pump is communicated with the liquid tank through a liquid inlet pipe, the liquid outlet end of the high-pressure pump is connected with a liquid outlet pipe, and the liquid outlet pipe is sequentially provided with a plurality of pressure relief valves in the liquid flow direction; by the adoption of the structure, the pressure of liquid output by the high-pressure pump is controlled in a staged mode by arranging the multi-stage pressure relief pipelines, and therefore the requirement that the high-pressure hydrogen production equipment needs to make pressure changes meeting requirements when meeting different pressure requirements can be met; damage caused by overweight load of an injection device in equipment ...

Quinolinone derivative and preparation method thereof

The invention discloses a quinolinone derivative and a preparation method of the quinolinone derivative and relates to the technical field of organic synthesis. The quinolinone derivative is of a structure shown by a structural formula I. The preparation method of the quinolinone derivative includes the steps that 3-halogenated oxoindole is adopted for reacting with O-tosyl-N-carbalkoxy for 24 to 120 h at the temperature from 0 to 100 DEG C in an organic solvent under the alkaline condition, and the quinolinone derivative is acquired through a one-pot reaction method. The novel quinolinone derivative is provided for the first time, a protecting group on fourth-position amidogen of the compound of the type falls easily, and quinolinone derivatives of other types can be synthesized conveniently and derivatively. The preparation method is suitable for preparation of the quinolinone derivative containing a urea derivative and existing other quinolinone compounds. The method has the advantages ...

Living pig counting and multi-target tracking method based on convolutional neural network

The invention belongs to the technical field of intelligent breeding identification and monitoring, and particularly relates to a living pig counting and multi-target tracking method based on a convolutional neural network, comprising the following steps: S1, acquiring a pig herd image and preprocessing the image; s2, inputting the preprocessed pig herd picture into a preset pig counting network based on YOLOv5; s3, taking the intersection-union ratio of the pig target detection frame and the tracking frame of the pig counting network as input, and tracking the pigs through a preset DeepSort-based pig target tracking network; and S4, counting the motion distance of the tracked pigs, and judging the health condition of each pig according to the counted motion distance of each pig. According to the method, individual segmentation and monitoring of the pig group can be accurately carried out in the pig group under the conditions of crowding, adhesion, shielding and the like, so that the pig ...

Preparation method of optically active 3,4-dihydro-2H-1-benzopyran-2-carboxylic acid and 3,4-dihydro-4-O-2H-1-benzopyran-2-carboxylic acid compounds

The invention provides a preparation method of 3,4-dihydro-2H-1-benzopyran-2-carboxylic acid (I) and 3,4-dihydro-4-O-2H-1-benzopyran-2-carboxylic acid compounds (II) which have optical activity. The method takes phenol derivatives and N-substitute maleimide as the starting material, the (II) is prepared by condensation, hydrolysis, split, acylation cyclization, and then by further reduction and hydrogenolysis, the (I) is prepared. The products prepared by the method have high optical purity, cheap and easily-obtained raw materials used in the synthetic process, mild reaction conditions, high yield, easy and simple operation, low cost and less 'three wastes' pollution. (In the formula, R1 and R2 express H, halogen, C1-C12alkyl, C3-C7cycloalkyl, C6-C12aryl, C1-C12alkoxy, C6-C12aryloxy, C1-C12alkylthio, C6-C12Arylthioethyl, nitryl, carboxyl, hydroxyl, CF3, and NR3R4; R3 and R4 express H, C1-C12alkyl and C6-C12aryl; R1 and R2 can either be the same or be different; and the configuration of ...

Polarization conversion color-combination prism

The invention provides a polarization conversion color-combination prism. The polarization conversion color-combination prism comprises a first prism, a third prism and a second prism, wherein the sections of first prism and third prism have a right angled triangle shape, and the section of second prism has an interior angle shape and the second prism is equal to or complementary to the first prism and third prism; any right angle surface of third prism and the inclined plane of first prism are connected with the corresponding surfaces of the second prism respectively, and the polarization conversion and synthesis of the three primary lights, such as red primary light, green primary light and blue primary light is realized by adopting film coating technology and a wave plate; and the polarization conversion color-combination prism has low manufacturing cost and high light-combination efficiency, and can be widely applied to the projection display of liquid crystal display (LCD) and liquid ...

Experimental apparatus for simulating mechanical properties of coiled tubing in marine compliant riser

The invention relates to an experimental apparatus for simulating the mechanical properties of a coiled tubing in a marine compliant riser. The apparatus can be used for analyzing the mechanical transfer properties of the coiled tubing when it goes down into the marine compliant riser. During experiment, the injection end of a compliant simulated riser 24 is horizontally fixed by an injection end fixation device 6, and by adjusting the position of a pipe end guide fixation device 18 in a right frame 17, different linetypes of the simulated riser can be constructed. A hydraulic injection device 2 is employed to perform injection operation on a simulated coiled tubing 25, and the excitation strength of an exciter 13 is adjusted at the same time to simulate the influence of ocean load on the simulated riser. In the process of operation, the injection speed record of the hydraulic injection device 2 and the tubing displacement are recorded. The parameters of a pressure sensor 5 and the pressure ...

Method for compounding flucloxacillin sodium-hydrate

The invention discloses a method for compounding flucloxacillin sodium-hydrate, which belongs to the technical field of drug synthesis, and comprises the steps: 6-aminopenicillanic acid (6-APA) is salified, then 3-(2-chloro-6-fluorophenyl)-5- methyl isoxazole-4-formyl chloride or equivalents thereof are added to do an acylation reaction, and then acids are added drop by drop to adjust a potential of hydrogen (pH) value to obtain flucloxacillin acid aqueous solutions. Organic solution is used to extract, and organic phases are washed, dried and filtered to obtain flucloxacillin acid solutions through saturated salt water, then white solids are dissolved out in the flucloxacillin acid solutions which are added with sodium iso-octoate solutions, and products are obtained by controlling temperature and crystallizing. The method for compounding the flucloxacillin sodium-hydrate does not separate intermediate flucloxacillin acids, obtained flucloxacillin acids are directly salified with sodium ...

Front-wheel steering mechanism

The invention discloses a front-wheel steering mechanism, which comprises a front wheel hub, a front wheel spindle, a left-brake fitting seat, a right-brake fitting seat and a connection seat. The left-brake fitting seat and the right-brake fitting seat are symmetrically sleeved between the front wheel hub and the front wheel spindle; the left-brake fitting seat, the right-brake fitting seat and the front wheel hub are supported through bearings; the connection seat is arranged between the left-brake fitting seat and the right-brake fitting seat, and the connection seat, the left-brake fitting seat and the right-brake fitting seat are fixedly connected into a whole through bolts; the middle part of the front wheel spindle is vertically provided with a mounting hole, the connection seat isprovided with a connecting shaft which passes through the mounting hole, and the connecting shaft is matched with the mounting hole through a taper bearing; and the left-brake fitting seat or the right-brake ...

Design method of universal reversible sequential machine

The invention discloses a design method of a universal reversible sequential machine. The method comprises the following steps: utilizing a reversible logic element CDE to form S-CDE; utilizing logic elements RT and IRT and a novel invented S-CDE to form S-RD and S-IRD; utilizing logic elements S-RD and S-IRD to form an m-signal s-state transformer and an m-signal s-state inverse transformer; utilizing the m-signal s-state transformer, the m-signal s -state inverse transformer and the S-CDE to form the reversible sequential machine. The reversible sequential machine designed according to the method can have any s kinds of internal states, can be changed between any two states, and can be kept in a certain state. The reversible sequential machine designed according to the method can be a completely universal m-signal s-state reversible sequential machine, further can be a reversible sequential machine module with the universality, can be embodied to form a specific computing module, and ...

Method for preparing D-phenylalanine through asymmetric transformation of L-phenylalanine

The invention discloses a method for preparing D-phenylalanine through asymmetric transformation of L-phenylalanine, and belongs to the technical field of chirality organic compounds. The method comprises steps: dissolving the L-phenylalanine and aldehyde catalysts in organic acid, adding D-tartaric acid, performing a reaction for 5-10 hours at the temperature of 60-90 DEG C, performing cooling and filtration, and washing a solid with an organic solvent so as to obtain D-tartaric acid .D-phenylalanine salt; and adding the obtained D-tartaric acid .D-phenylalanine salt into alkali liquid in batches, performing dissociation, performing a stirring reaction for 1-2 hours, and performing filtration, washing and drying so as to obtain the D-phenylalanine. The method disclosed by the invention solves the problems of poor stability, low resolution efficiency, poor product quality, high production cost and the like existing in the technology of preparing the D-phenylalanine through the L-phenylalanine ...

Intelligent street lamp system based on traffic flow of measured vehicle

The utility model discloses an intelligent street lamp system based on traffic flow of measured vehicle, including the light pole, the lower part of light pole is equipped with car flow detection device, car flow detection device includes electromagnetic induction device and treater, electromagnetic induction device is including setting up the LC oscillating circuit on the road surface, LC oscillating circuit feels single coil with the ground that provides the electromagnetism feedback for it and links to each other, the treater is equipped with the soft nuclear embedded system module of FPGA, the soft nuclear embedded system module of FPGA with the LC oscillating circuit communication links to each other, the treater is equipped with data storage module, data storage module is connected with wireless transmission module, the utility model has the advantages of: collect street lamp illumination and survey vehicle flowrate in an organic whole, simple structure, the cost is reduced has realized ...

Conveying vehicle special for tower drum

The invention provides a conveying vehicle special for a tower drum. The conveying vehicle comprises a traction main vehicle body, a front tower drum bearing assembly and a rear tower drum bearing assembly. Both the front tower drum bearing assembly and the rear tower drum bearing assembly are provided with supporting bases through universal connection balls. A special front tower drum clamping assembly and a special rear tower drum clamping assembly which are used for clamping the tower drum in a matched mode are arranged between the front supporting base and the rear supporting base. Tower drum lifting adjusting mechanisms are arranged between the special tower drum clamping assemblies and the supporting bases. According to the conveying vehicle, the two special tower drum clamping assemblies for claming the tower drum in the matched mode are arranged between the front supporting base and the rear supporting base, the functions of lifting, clamping and the like of the tower drum can be ...

Unmanned patrol car ground-air cooperation system and control method

The invention relates to the technical field of unmanned vehicles, in particular to an unmanned patrol vehicle ground-air cooperative system and a control method, and the system comprises a vehicle-mounted differential base station, a parking platform controller, a cooperative controller, a positioning antenna, a vehicle-mounted radio station, an unmanned aerial vehicle, an unmanned vehicle, a parking platform, a communication antenna, a portable radio station, and an operation terminal. After receiving the target information, the unmanned aerial vehicle performs reconnaissance on a target, and after a suspicious target is reconnoited, the unmanned aerial vehicle performs photographing and uploads target picture information and position information to the operation terminal, and an operator makes a decision according to a target picture and position information returned by the reconnaissance target; and if the unmanned vehicle needs to be driven out and dispose the target, the operator ...