门底挡尘条（SDCT02）

门窗用插销（SXMK-3009）

驳接爪（220A4）

Method for preparing bottom plate of bidirectional prestressed concrete laminated slab on large platform

A method for preparing a bottom plate of a bidirectional prestressed concrete laminated slab on a large platform belongs to the technical field of civil engineering, and adopts the large-size platform to prepare the bottom plate of the bidirectional prestressed concrete laminated slab, unloading devices on a peripheral tensioning platform are synchronously started to unload before mold stripping, and tensioning forces in two directions are released at the same time, and the horizontal deviation sizes of the four corners of the bottom plate of the bidirectional prestressed concrete laminated slab on the large platform are equally divided, so that the horizontal deviation sizes of the four corners are minimum, and damage to concrete and reinforcing steel bars is reduced to the minimum extent; a flexible connection measure with a certain length is adopted between a plate end prestressed reinforcement and a prestressed reinforcement locking point, so that a horizontal deviation angle between ...

Ventilation and heat dissipation device for box-type substation

The invention discloses a box-type substation ventilation and heat dissipation device which is used for conducting ventilation and heat dissipation on a box-type substation and comprises a heat collection assembly, a fan and a cold storage cylinder, the heat collection assembly is embedded into the back side of the box-type substation, the fan is further arranged on the back side of the box-type substation, and the cold storage cylinder is arranged on the back side of the box-type substation. When the temperature of the liquid in the heat collection assembly is lower than a threshold value, the fan can blow gas outside the box-type substation to the inner side of the box-type substation, and the gas passes through the heat collection assembly; the cold storage barrel is arranged in the stratum through the extending hole, and the cold storage barrel can store cold and supply cold to the heat collection assembly when the temperature of liquid in the heat collection assembly is higher than ...

Water removal device for backdraft flue gas of boiler

The water removal device comprises a cooling box and a first condensation assembly, an air inlet of the cooling box is connected with a smoke return opening of a chimney of the boiler through a first smoke return pipe, and an air outlet of the cooling box is connected with an air inlet of an air feeder through a second smoke return pipe; an exhaust port of the air feeder is connected with a burner in the boiler; the first condensation assembly comprises an evaporator and a refrigerant pipeline, the evaporator is arranged in the cooling box, and the evaporator and the refrigerant pipeline form a loop; an inverted-cone-shaped water collecting box is arranged on the lower portion of the cooling box, and a drain opening and a drain valve are arranged at the lower end of the water collecting box. The cooling box is additionally arranged on the smoke return pipeline, the first condensation assembly is arranged in the cooling box, the backdraft smoke is cooled, condensate water obtained after ...

Rock-soil body grouting effect detection device and method

The invention discloses a rock-soil body grouting effect detection device and method.The rock-soil body grouting effect detection device comprises a vehicle body and a storage assembly installed on the vehicle body, a detection mechanism is arranged in the storage assembly in a retractable mode, the detection mechanism comprises a wire harness pipe and multiple sets of fixing pipes fixedly connected with the outer portion of the wire harness pipe, and the outer portions of the fixing pipes are slidably sleeved with sliding sleeves; the top end of the sliding sleeve is fixedly connected with a resistance bowl. According to the rock-soil body grouting effect detection device and method, the expandable extension protection frame is arranged to be supported on the inner wall of the detection hole, on one hand, the centering effect of the detection probe is achieved, on the other hand, collision of the detection probe can be avoided when the detection probe is taken out, the protection effect ...

Door bottom dust blocking strip

The invention belongs to the technical field of door frame dustproof structures, and particularly relates to a door bottom dust blocking strip. The dustproof strip comprises a dustproof strip shell, a cover plate piece and a blocking piece piece are arranged on the dustproof strip shell, the cover plate piece is connected with a door leaf, and the blocking piece piece is connected with a door frame. The cover plate part is fixed to the door leaf, the blocking piece part is fixed to the door frame, the dustproof strip shell is installed in a groove in the bottom of the door leaf, when the door leaf is closed, the sliding type trigger extrusion assembly abuts against the blocking piece part, the sealing part is extruded through the sliding type trigger extrusion assembly, the sealing part descends to achieve the dustproof and anti-seepage effects, and the dustproof strip shell is arranged at the bottom of the door leaf; the bottom smoothness of the door leaf is not influenced; the effects ...

Multidirectional loading detection device and detection method for pile foundation bearing capacity

The invention provides a multidirectional loading detection device and method for pile foundation bearing capacity, the detection device comprises a rack and a detection unit, the detection unit comprises a first motor, an arc-shaped supporting plate, a sliding seat, an arc-shaped sliding groove, a power mechanism and a loading assembly, and the loading assembly comprises a hydraulic cylinder, a mounting plate, a pressing plate and a pressure sensor. The detection device further comprises a protection assembly, the protection assembly comprises a plurality of protection rods, a protection net, a shear fork mechanism and a driving mechanism, the detection device further comprises a fixing assembly, and the fixing assembly comprises a drill rod, a third motor, an elastic plate, an insertion nail and a rotary disc. The pile foundation can be subjected to multidirectional loading detection; by arranging the protection assembly, protection can be achieved, and higher safety is achieved; by arranging ...

Intelligent rack type heat dissipation device of transformer substation relay protection device

The invention relates to an intelligent rack type heat dissipation device of a transformer substation relay protection device. The intelligent rack type heat dissipation device comprises a temperature sensing module, a heat dissipation module, a control module, a display unit module, a power module and a shell, wherein the temperature sensing module is connected with the control module; the temperature sensing module comprises a temperature sensor and a signal transmission line; the control module is electrically connected with the display unit module and the heat dissipation module; the heat dissipation module comprises a heat dissipation fan; the control module comprises a single-chip microcomputer and a single-chip microcomputer development board; the display unit module comprises a display and a signal connecting line; a power module comprises a power switch and a transformer element; the temperature sensing module and the display unit module are connected to the single-chip microcomputer ...

Gear self-centering clamp

The invention discloses a gear self-centering clamp which comprises a clamp base used for being installed on a lathe, and a positioning sleeve with a shaft hole is coaxially fixed to the clamp base. A retainer is coaxially arranged in a shaft hole of the positioning sleeve and comprises an annular rotatable retainer base and a plurality of positioning rods which are vertically connected to the retainer base at intervals in the circumferential direction of the retainer base; the positioning rod can be clamped between two adjacent gear teeth of the crankshaft gear and synchronously rotates with the crankshaft gear; the shaft hole surface of the positioning sleeve comprises eccentric arc surfaces which are in one-to-one correspondence and running fit with the positioning rods and can enable the positioning rods to move towards the center side of the shaft hole of the positioning sleeve; and a pressing plate structure for positioning the retainer and the crankshaft gear in the shaft hole of ...

New generation transformer station centralized monitoring system based on multi-system fusion

Video, robot and unmanned aerial vehicle data of multiple transformer substations are accessed through a comprehensive data network, and remote intelligent patrol of the transformer substations is realized by adopting a big data technology; the system is mainly composed of an inspection host, a high-definition video, a robot, an unmanned aerial vehicle and the like, and has the functions of information overview, query statistics, intelligent inspection, intelligent linkage, three-dimensional inspection, equipment operation and maintenance and the like. The regional remote intelligent inspection system based on image recognition solves the problems of high safety risk, large manpower occupation, poor inspection effect and the like of manual inspection of a transformer substation in the prior art, promotes transformation of an equipment inspection mode and landing of an equipment owner, improves the coverage rate of inspection point locations of the transformer substation, and improves the ...

Concurrent scheduling method and device, computer equipment and computer readable storage medium

The embodiment of the invention provides a concurrent scheduling method and device, computer equipment and a computer readable storage medium, and belongs to the technical field of computers, each type of service is defined as a specific event in a mode that one message bus corresponds to all events of one service type, and the specific event is sent to the computer equipment. Therefore, the computer equipment queues the acquired to-be-processed events into an event queue of the target message bus corresponding to the scheme number of the business type to which the to-be-processed events belong, and when a distribution condition is met, the to-be-processed event queued at the front in the event queue is distributed to the target message bus through a processing function corresponding to the target message bus. After the to-be-processed event queued foremost is packaged into the target execution task, the to-be-processed event is submitted to the target thread in the thread pool for execution ...

Two-time bolting and grouting integrated construction method for deep and shallow rock masses of inclined drift

The invention provides a twice bolting and grouting integrated construction method for deep and shallow rock masses of an inclined drift, and belongs to the technical field of inclined drift grouting. Comprising the following steps that S1, grouting and anchoring are conducted on a bottom plate, grouting and anchoring are integrally constructed, and secondary construction is conducted according to deep and shallow parts; s2, shallow rock mass construction: firstly drilling shallow holes by using a ZQJJ-200/1.8 pneumatic frame column type drilling machine, immediately lowering a grouting anchor rod after forming the holes, and constructing in rows at intervals, namely firstly drilling holes and lowering the grouting anchor rod according to the row spacing of 1000 * 3200mm, continuously constructing 10 rows, and then continuously performing grouting; and S3, deep rock mass construction. According to the construction method, grouting and anchoring are carried out on the bottom plate, grouting ...