598results about How to "High structural reliability" patented technology

The invention relates to the technical field of medium and small span bridge construction and control, in particular to a precast beam size matching method and system based on a three-dimensional laser scanner, and the method comprises the steps: obtaining precast beam point cloud data, carrying out the preprocessing of the precast beam point cloud data, carrying out the registration of the preprocessed precast beam point cloud data with a BIM model, and obtaining the size of a precast beam. The automatic detection of the structure size is realized; then, by obtaining interface angular points of the precast beams, conducting virtual splicing by aligning the cross section angular points of the adjacent precast beams, simulating the field splicing process and obtaining key construction details, accurate and reliable data support is provided for follow-up construction, it is ensured that each beam section can conform to design specifications during splicing, and therefore potential safety hazards are reduced; the controllability and scientificity of the construction process are improved, the construction efficiency is improved, the construction period is shortened, the service life of the bridge structure is prolonged, and the structural reliability is improved. The problems of low precast beam parameter detection efficiency, high operation difficulty and low accuracy in the prior art are solved.

The embodiment of the invention provides a manufacturing method of a glass through hole, which is used for solving the technical problem that a glass through hole with an ultrahigh depth-diameter ratio cannot be manufactured according to a pre-designed scheme in an existing manufacturing method of the glass through hole. According to the manufacturing method of the glass through hole, before laser-induced modification, exposed prefabricated through hole graphical areas are formed on the front face and the back face of a glass substrate through the micron-order photoresist mask technology, and meanwhile a photoresist layer with the thickness not smaller than 5 micrometers is formed on the surface, outside the prefabricated through hole graphical areas, of the glass substrate. In the laser-induced modification stage, laser with higher irradiation power can be used for deeply modifying the glass material in the prefabricated through hole patterned area to form a prefabricated through hole modified area. In the chemical etching stage, the surface of the glass substrate outside the prefabricated through hole modified area is covered with the anti-corrosion photoresist layer, and etching liquid only acts on the prefabricated through hole modified area, so that the phenomenon that the thickness of the glass substrate is reduced in the etching process is effectively prevented.

The invention belongs to the technical field of gearbox shaft end sealing, and particularly relates to a motor vehicle shaft end double-blade sealing device and a shaft end sealing design method.The method comprises the following steps that S1, working condition parameters are determined; s2, designing a double-blade impeller; s3, designing a sealing structure; and S4, outputting a design result. The sealing effect is good, the double-blade impeller and the staggered labyrinth seal are combined, and the sealing performance of the shaft end of the gearbox is effectively improved; the operation and maintenance cost is reduced, and the operation and maintenance interval can be effectively prolonged and the operation and maintenance investment is reduced; the reliability is high, a non-contact sealing mode is adopted completely, and the reliability of the double-blade impeller structure is high; and the design and three-dimensional modeling work of the shaft end sealing device can be automatically completed according to the determined environmental parameters and boundary dimension requirements, and a user can complete the design adjustment work of the shaft end sealing device through one key based on reliability redundancy.

The invention discloses a printed circuit board and a preparation method thereof, and the method comprises the steps: obtaining a to-be-processed plate; the to-be-machined plate is subjected to first drilling treatment, so that a plurality of first target holes are formed in the to-be-machined plate in sequence; carrying out second drilling treatment on the to-be-processed plate to sequentially prepare a plurality of second target holes in the to-be-processed plate so as to prepare a printed circuit board; wherein the plurality of first target holes and the plurality of second target holes are alternately arranged in sequence one by one. By means of the mode, the problem that heat cannot be dissipated in time due to the fact that the interval time is too short in the same area can be effectively solved, heat agglomeration in the preparation process is further reduced, the layering situation caused by heating of the conductive layer and the dielectric layer is reduced, and the structural stability and reliability of the printed circuit board are improved.

The invention discloses a three-axis rotating mechanism and a photoelectric tracking turntable. The three-axis rotating mechanism comprises an adapter frame, the pitch axis system extends in the first direction and is rotatably arranged on the adapter frame. The bottom frame is rotatably connected with the adapter frame through the first azimuth shaft system; the top frame is rotatably connected with the adapter frame through a second azimuth shaft system, and the first azimuth shaft system and the second azimuth shaft system are coaxial and extend in a second direction parallel to the vertical direction; a first gear coaxial with the first azimuth shaft system is fixed to the bottom frame, a second gear coaxial with the second azimuth shaft system is fixed to the top frame, a transmission shaft with the extending direction parallel to the first azimuth shaft system is rotatably arranged on the transfer frame, and a third gear in transmission connection with the first gear is coaxially fixed to one end of the transmission shaft. And a fourth gear in transmission connection with the second gear is coaxially fixed at the other end. The transmission shaft is higher in reliability and does not shield a pitching view field, the transmission ratio of the first gear and the third gear or the second gear and the fourth gear is flexible in design, the structure is compact, and the cost is low.

The embodiment of the invention discloses a battery, electric equipment and energy storage equipment. The battery includes: a case; the single battery is accommodated in the box body, and the single battery is provided with a pressure relief mechanism; and one end of the discharge channel is arranged around the pressure relief mechanism, and the discharge channel is used for discharging the emissions discharged by the pressure relief mechanism to the outside of the box body through the other end of the discharge channel. According to the battery, the electric equipment and the energy storage equipment provided by the embodiment of the invention, the stability and the reliability of the battery can be improved.

The invention belongs to the technical field of aero-engines, and discloses a centrifugal impeller and an aero-engine rotor. The centrifugal impeller comprises an impeller body, a centrifugal switching section and a fastener; a connecting part is arranged on the side, close to the gas turbine disc, of the impeller body, the centrifugal switching section comprises an impeller switching part and a turbine switching part which are fixedly connected, an annular spigot is formed in the side, close to the impeller body, of the impeller switching part, and outer teeth are arranged on the outer side of the impeller switching part in the circumferential direction; the connecting part is fixedly connected with the impeller switching part through a fastener, the connecting part is located in the spigot, a positioning surface for radially positioning the impeller body is arranged in the spigot, and end teeth are arranged at the end, away from the impeller body, of the turbine switching part. The centrifugal impeller is provided with the centrifugal switching section, the impeller body and the centrifugal switching section can be made of different materials, the centrifugal switching section is made of high-temperature alloy, the abrasion resistance of the rear end teeth of the centrifugal impeller can be effectively improved, end tooth bonding is prevented or relieved, and the problems of end tooth bonding and disc body abrasion of the centrifugal impeller are solved.

The invention provides a cleaning device, which is arranged on an electric pole stay wire, and comprises a fixed shaft arranged on the electric pole stay wire, and the fixed shaft and the electric pole stay wire are coaxially arranged; the fixed seat is connected with one end of the fixed shaft; the cleaning assembly comprises a driving part, a transmission part, a rotating part and a cleaning part, the driving part is arranged on the fixing base, the rotating part is rotatably arranged on the outer side wall of the fixing shaft in a sleeving mode, the transmission part is arranged between the driving part and the rotating part, the cleaning part is arranged on the rotating part, the transmission part is provided with a speed reduction structure, and the driving part is in driving connection with the transmission part; the driving piece drives the rotating piece and the cleaning piece to rotate to achieve cleaning operation. Through the technical scheme provided by the invention, the problems that the efficiency is low and the labor intensity is relatively high due to a mode that a worker uses a sharp tool to cut a vine plant in the related technology, and the maintenance cost is increased due to frequent replacement when the sharp tool is damaged can be solved.

The invention provides a load rejection mechanism and method for a deep sea buoyancy platform. The load rejection mechanism comprises a load, a fixed frame structure, an electric explosion bolt, an electric explosion bolt pressing rod, a safety pin, a lever structure and a lever connecting device. A lever connecting device is fixed on the load; the lever structure is connected with the fixed frame structure through a rotating shaft, a first end is limited by a lever connecting device, and a second end penetrates out of the lower part of the fixed frame structure and is pressed and limited by an electric explosion bolt pressing rod and a safety pin on the fixed frame structure; limiting of the second end of the lever structure is relieved by taking out the safety pin or detonating the electric explosion bolt, the lever structure is turned over, the first end of the lever structure is separated from the lever connecting device, and load rejection is completed. Compared with a single triggering mode of a traditional load rejection mechanism, the load rejection mechanism can be switched between autonomous triggering starting and manual triggering starting at any time, the switching mode is simple and efficient, and the load rejection mechanism adapts to different environment working conditions and equipment requirements.

The invention relates to a heat dissipation surface expansion device based on a high-thermal-conductivity graphene film. The heat dissipation surface expansion device comprises a satellite body, single-machine equipment, a graphene film, a heat pipe and a bracket, the stand-alone device is installed inside the satellite body, and the graphene film and the support are installed outside the satellite body; the graphene film is connected with the satellite body and the support, and at least one heat pipe is connected to the graphene film. The device has the advantages that heat on a single machine is firstly transmitted to the satellite mounting plate and the graphite film, the heat dissipation surface is expanded through the graphene film, the heat conduction effect is enhanced through the heat pipe, and finally the heat is radiated to a cold space through the graphene film, so that the problem of insufficient heat dissipation capability of a satellite is solved; the whole set of device is high in structural reliability, the whole set of device product is not provided with movable parts, passive thermal control measures are adopted, and the problems of starting, stopping and failure of a system do not exist; the problem of heat dissipation of high-heat-consumption single-machine equipment under the conditions of satellite envelope and insufficient weight is solved.

The invention relates to the technical field of batteries, and discloses a battery, a battery pack and electric equipment.The battery comprises a shell, a roll core, an elastic insulating base, an insulating part, a first terminal and a second terminal, the second terminal comprises a limiting plate, a connecting column and a collector plate which are connected in the first direction, and the collector plate is located on the side, away from the roll core, of the first terminal; the collector plate is embedded in the insulating part; the battery is provided with an auxiliary plane perpendicular to the first direction, the orthographic projection of the insulating part on the auxiliary plane is a first projection, the orthographic projection of the first terminal on the auxiliary plane is a second projection, and at least part of the first projection falls into the second projection, so that when the collector plate is stressed, the first terminal limits the insulating part, and the insulating part is prevented from being damaged. Therefore, the collector plate is limited to move towards the inside of the shell, namely, the second terminal of the battery with the structure is not easy to move towards the inside of the shell when being stressed, and the structural reliability of the battery is relatively high.

The invention relates to the technical field of cross-sea channel engineering, in particular to a fixed supporting type underwater suspension tunnel with a shock absorption and isolation device, which comprises rigid pier columns, a suspension tunnel pipe body, a flexible waterproof joint, a waterproof shock isolation support, a waterproof shock absorption buffer component and a pile foundation, the steam generating device comprises a steam chamber; the floating tunnel is suitable for cross-sea traffic in shallow water areas (the water depth is within 50 m) under complex sea conditions, good stability is achieved, all components are manufactured in a modularized mode and connected through standardized connectors, construction and maintenance are convenient, the truss for supporting connection and limiting is arranged on the upper portion of the rigid pier column, excessive displacement of a floating tunnel pipe body in the horizontal direction can be limited, and the construction efficiency is improved. The floating tunnel pipe body falling accident under the extreme condition is avoided, the shock insulation supports and the vibration reduction buffering assemblies are arranged between the floating tunnel pipe body and the rigid pier columns, when disasters such as extreme waves or ocean currents or earthquakes happen, shock insulation and vibration reduction are facilitated, and the structural reliability is high.

The invention discloses a liquid rocket engine thrust chamber with a lattice regenerative cooling structure and a design method thereof, and belongs to the field of engines, and the design method comprises the following steps: determining the overall structure of the liquid rocket engine thrust chamber according to the project general situation; determining the lattice regenerative cooling structure as a truss lattice structure, selecting the truss lattice structure, and determining a layout mode; designing the determined three-dimensional model of the thrust chamber by using computer aided design software; exporting the three-dimensional model as an STL (Standard Template Library) file, and representing the surface of the three-dimensional model by using triangular grids by the STL file, so as to facilitate subsequent 3D printing treatment; and performing selective laser melting and printing to form a thrust chamber product, and performing post-treatment after printing is completed. The lattice regeneration cooling structure is directly arranged between the inner wall and the outer wall of the thrust chamber, so that the weight is greatly reduced, the effective heat transfer coefficient of the cooling channel is increased, the strength of the inner wall and the cooling channel is improved, and the service life of the thrust chamber is prolonged.

The invention relates to the field of thin film materials, and provides a patterned low-internal-stress high-reflection layer and a preparation method and application thereof, and the high-reflection layer comprises an n (Si / Ni) layer, a Cr layer, a cap layer and a patterned reflection layer which are sequentially located on a gamma-Al2O3 substrate from bottom to top; the n (Si / Ni) layer is formed by alternately depositing a Si layer and a Ni layer for n periods, and the alternating period n is 30-60; the average thickness of the Si layer is 15-40 nm, the average thickness of the Ni layer is 3-8 nm, and the ratio of the average thickness of the Si layer to the average thickness of the Ni layer is 5: 1; the lowest layer of the n (Si / Ni) layer is a Si layer and is connected with the gamma-Al2O3 substrate, and the uppermost layer is a Ni layer. The multilayer composite structure design is adopted, high reflectivity, low internal stress, low defect density and chemical stability are achieved, the problems that a traditional high-reflection layer is large in internal stress, large in defect density and the like are solved, and the method can be applied to the fields of photoetching masks, optical imaging and sensors.

The utility model discloses a road crack monitoring mechanism, which belongs to the technical field of road crack monitoring, aims at solving the problems that the road crack monitoring effect is poor and the road crack monitoring mechanism is easily influenced by sundries and dust, and comprises a cart body and a plurality of mounting holes which are formed in the side wall of one side of the cart body at equal intervals, an air spraying pipe is fixed in the mounting hole, a monitor is fixed to the side wall of one side of the cart body, an air spraying assembly matched with the air spraying pipe is arranged on one side of the cart body, and two symmetrically-distributed mounting bases are fixed to the side wall of the bottom end of the cart body; through the arrangement of the air injection assembly, air injection dust removal can be carried out on dust in road cracks, the working efficiency of cleaning the road cracks can be improved, and particularly, the phenomenon that dust in deep cracks is not easy to clean can be solved, so that the road cracks or cracks can be well detected, and the detection efficiency is improved. And more time and labor can be saved for workers, so that better accuracy is achieved.

The utility model relates to a prefabricated middle partition wall structure of a tunnel ventilation inclined shaft. The prefabricated middle partition wall structure at least comprises a bottom supporting structure, a steel supporting assembly and a prefabricated modular wallboard. A positioning groove is formed in the top face of the bottom supporting structure, and the bottom of the steel supporting assembly is embedded into the positioning groove and fixed. The prefabricated modular wallboard is formed by splicing a plurality of prefabricated slabs, the adjacent prefabricated slabs are connected through tongue-and-groove structures which are matched in a concave-convex mode, and the tongue-and-groove joints are filled with sealing materials. The steel supporting assemblies are longitudinally arranged at intervals, and the tops of the steel supporting assemblies are fixed to a tunnel lining to form a steel-concrete combined structure for supporting the prefabricated modular wallboard. The steel supporting assembly and the prefabricated modular wall plate form a steel-concrete prefabricated structure, and the stability of the whole structure is enhanced. By adopting the autoclaved aerated concrete precast block material and the concave-convex groove embedded modular structure, the problems that the construction quality is difficult to control, the construction period is long, the on-way resistance of air flow is large and the like in the existing reinforced concrete mid-partition wall are solved.

The utility model relates to a water distribution core of a shower faucet, which comprises a main body, a water mixing chamber is arranged at one end of the main body, a cold water inlet and a hot water inlet are respectively communicated with the water mixing chamber through a cold water inlet channel and a hot water inlet channel, and the water mixing chamber is communicated with a water outlet through a water distribution channel. A first pressure relief channel is formed in the other end, opposite to the water mixing chamber, of the hot water inlet channel, a first pressure relief assembly is arranged in the first pressure relief channel and comprises a sealing plug, a spring and a plug, a mounting hole is formed in one end of the first pressure relief channel, and the plug is fixedly arranged in the mounting hole through a connecting piece; the sealing plug is arranged in the first pressure relief channel in a sliding mode, the spring is arranged between the sealing plug and the plug, one end of the spring is connected with the sealing plug, and the other end of the spring is connected with the plug. The technical scheme of the utility model has the technical effects of simple structure and effective prevention of frost crack of the main body.

The invention discloses a novel substrate structure with high thermal conductivity and high density, and relates to a novel packaging substrate structure. In current production, a substrate material is usually epoxy resin, and multi-layer wiring needs to be adopted in order to reduce electromagnetic serial winding. However, the heat conductivity coefficient of the epoxy resin is low, so that the junction temperature and local temperature rise of the chip are too high, the chip fails, and the service life is shortened. A novel substrate structure with high thermal conductivity and high density comprises a chip, a metal layer, a BGA welding spot, an AIN plate, an FR4 plate, a linear welding spot and a bonding pad. The novel substrate is formed by combining an FR4 board and an AIN board, and the FR4 board and the AIN board are connected through linear welding spots and bonding pads to transmit electric signals. The high-heat-conductivity high-power LED lamp is characterized in that the heat conductivity coefficient of the AIN board is high and can reach more than 170W, and the FR4 board can realize multi-layer wiring, so that the cost is low. The novel substrate structure formed by combining the FR4 board and the AIN board can realize multi-layer wiring while enabling the chip to rapidly dissipate heat, so that the cost is reduced. Therefore, the device has certain scientific and engineering significance, and the structure is wide in application prospect, simple, compact and reliable in work.

The invention discloses a solar cell, a photovoltaic module and a semiconductor substrate, and relates to the technical field of photovoltaics, so that a passivation layer has a good passivation effect on the semiconductor substrate. Meanwhile, the contact performance of the doped semiconductor layer and the electrode and the shaping of the electrode are improved, and the conversion efficiency of the solar cell is improved. The solar cell comprises a semiconductor substrate and a passivation layer. The semiconductor substrate has a first surface and a second surface opposite to each other. At least one of the first surface and the second surface is a target surface. The passivation layer is disposed on the target surface. And one side of the passivation layer away from the semiconductor substrate is provided with a plurality of tower footing-like texture structures which are recessed towards the passivation layer. Wherein each tower footing-like texture structure is defined by a polygon-like bottom surface and side surfaces. In the same tower footing-like texture structure, at least one corner of the polygon-like bottom surface is provided with a plurality of protrusions climbing in the extension direction of the side ridge, and the protrusions on the same corner are provided with fluctuating shapes extending in the direction parallel to the polygon-like bottom surface.

The utility model discloses a bogie frame, bogie and rail transit vehicle, the bogie frame comprises two side beams and a cross beam arranged between the two side beams, the cross beam and the two side beams form an H-shaped structure, each side beam comprises a side beam upper cover plate, a first end cover plate and a second end cover plate are respectively welded at two ends of the side beam upper cover plate, and the first end cover plate and the second end cover plate are connected with the cross beam. The side beam further comprises an integrated side beam lower cover plate, the side beam lower cover plate and the side beam upper cover plate are connected through a side beam inner vertical plate and a side beam outer vertical plate, a cap cylinder is welded to the first end cover plate, the side wall of the cap cylinder is welded to the side beam inner vertical plate and the side beam outer vertical plate, and the side wall of the cap cylinder is welded to the side beam inner vertical plate and the side beam outer vertical plate. The side beam lower cover plate is provided with a through hole, and the end of the through hole covers the periphery of the bottom end of the cap cylinder. According to the bogie frame, the structural strength is improved, the local stress is reduced, the stress concentration is reduced, the welding manufacturability is improved, and the running safety of a vehicle is improved.

The utility model relates to the technical field of vehicles, in particular to an air suspension, a vehicle chassis and a vehicle. The air suspension comprises a lifting air bag, an air bag upper support and an air bag lower support, the air bag upper support comprises a first plate body and a second plate body which are connected with each other at a preset angle, the first plate body is connected with the top of the lifting air bag, the second plate body is connected with an axle, and the air bag lower support is connected with the bottom of the lifting air bag. And the side part of the air bag lower bracket is connected with the frame. During use, when the lifting air bag is inflated or deflated, the lifting air bag drives the air bag upper support and the air bag lower support to be relatively far away from or close to each other, so that axle lifting is achieved. The first plate body and the second plate body directly exert lifting force, axle lifting is achieved without a chain and an air bag guide mechanism, the whole structure is simple and reliable, the first plate body and the second plate body which form the preset angle can bypass a plurality of structural parts, and the situation that the structural parts are disturbed and abraded in the lifting process is avoided; therefore, the structural reliability and the service life of the air suspension are improved.

The invention provides a 3D printing nozzle multi-direction spiral airflow generator which comprises a shell, a nozzle is arranged in the middle of the shell, a flow guide groove is formed in the bottom of the shell, a spiral airflow generator body is arranged in the flow guide groove, a plurality of air outlets are formed in the spiral airflow generator body in a downward inclined mode, and the multiple air outlets are formed in the outer side of the nozzle in the circumferential direction; air flow generated by the cooling fan flows into the flow guide groove, under the guidance of the spiral air flow generator body, the cooling air flow forms an anticlockwise (overlook angle) air flow vortex and a wind hole area in the center of the vortex air flow around the lower portion of the spray head, and under the help of the cooling effect of the omni-directional spiral air flow cooling, the cooling effect is improved. The fused deposition type 3D printer can successfully print the arm extension structure with the included angle ranging from 0 degree to 85 degrees with the vertical direction under the condition that a supporting structure is not printed, material waste of the FDM printer for printing the supporting structure is reduced, the overall printing time is shortened, the structural reliability of a 3D printing model is enhanced, and the success rate of 3D printing is increased.

The invention discloses an electric anastomat with a novel jaw bending mechanism, the bending mechanism comprises a bending driving shaft, the bending driving shaft comprises a turntable and a shaft body which are coaxially arranged, the end face, close to the shaft body, of the turntable is provided with a limiting block, and an upper rotating hand wheel is provided with a containing groove matched with the turntable, a first shaft hole for the shaft body to penetrate through and a limiting groove matched with the limiting block; a plurality of gear convex ribs are arranged at the upper end of the gear chuck, and a second shaft hole for the shaft body to penetrate through is formed in the gear chuck; one end of the limiting spring abuts against the upper rotating hand wheel, and the other end of the limiting spring abuts against the gear chuck; the rotating handle is fixedly connected with the shaft body, and a plurality of gear clamping grooves matched with the gear convex ribs are formed in the rotating handle; and the driving sliding block is arranged on the sleeve module and can move in the axial direction relative to the sleeve module, a driving protrusion is arranged on the driving sliding block, and a V-shaped groove matched with the driving protrusion is formed in the end, away from the shaft body, of the rotating disc. According to the electric anastomat, the bending mechanism is simple in structure, good in stability and convenient to operate.

The utility model discloses a sensor rotor, a position sensor, a motor, a motor assembly and a vehicle, the sensor rotor comprises at least one conductor, the conductor comprises a first conductive part and a second conductive part which are arranged along the radial direction, the first conductive part is connected with the second conductive part, and the first conductive part is connected with the second conductive part. And the number of the first conductive parts is equal to that of the second conductive parts. According to the embodiment of the utility model, the forms of the sensor rotor have various selections and are not limited to a circuit board printing type, so that the design of the sensor rotor is relatively simple, the sensor rotor is easy to process, and the cost is relatively low.

The utility model belongs to the technical field of concrete 3D printing, and relates to a structure for connecting an interlayer interface of a 3D printing test piece, which comprises a first reinforcing piece for connecting the 3D printing test piece, and the 3D printing test piece is formed by laminating at least two layers of 3D printing test piece bodies; the first reinforcing piece penetrates through at least two layers of 3D printing test piece bodies in the stacking direction of the 3D printing test piece bodies; according to the 3D printing test piece disclosed by the utility model, through the first reinforcing piece, interlayer interfaces of multiple layers of 3D printing test pieces can be conveniently connected to form a whole, and the interlayer bonding strength of the 3D printing test pieces is enhanced, so that when the 3D printing test pieces are subjected to external force, the layers are not easy to separate or slide, the stress and the force transfer are continuous at the interlayer interfaces, and the structural reliability of the 3D printing test pieces is improved.

The utility model discloses a T-shaped reinforcement cage and a T-shaped wall, and relates to the field of building construction, the T-shaped reinforcement cage comprises a main reinforcement cage, an auxiliary reinforcement cage and an anchoring assembly; wherein the main reinforcement cage extends in the transverse direction, an anchoring cavity is formed in the main reinforcement cage, and a connecting position is formed on one side of the main reinforcement cage in the longitudinal direction; the auxiliary reinforcement cage extends in the longitudinal direction, one end of the auxiliary reinforcement cage penetrates through the main reinforcement cage and forms a connecting end, and the connecting end is connected to the connecting position, so that the main reinforcement cage and the auxiliary reinforcement cage are connected to form a T-shaped structure; the anchoring assembly comprises a plurality of anchoring rods, and the anchoring rods are installed on the auxiliary reinforcement cages, extend in the longitudinal direction and stretch into the anchoring cavities. According to the utility model, the structural reliability of the T-shaped wall body at the connection node between the auxiliary reinforcement cage and the main reinforcement cage can be enhanced without installing the anchoring reinforcement on the auxiliary reinforcement cage and binding and connecting the anchoring reinforcement with the main reinforcement cage by a large number of personnel, the construction is simple and convenient, the efficiency is high, and the manpower is saved.

The utility model provides a waterproof wire clamp which comprises an upper box body and a lower box body, one end of the upper box body and one end of the lower box body are hinged through a hinge shaft, and the other end of the upper box body and the other end of the lower box body are clamped through a buckle structure. Two fixed seats distributed at an interval are arranged in the lower box body, a conductive wire clamp for connecting a detonating bus and a leg wire is connected in each fixed seat, two crimping seats corresponding to the two conductive wire clamps respectively are arranged on the upper box body, and a bus clamping groove and a leg wire clamping groove with upward openings are formed in the tops of the conductive wire clamps; the width of the bus clamping groove is the same as the diameter of an inner core of a bus, the width of the leg wire clamping groove is the same as the diameter of an inner core of a leg wire, the conductive wire clamp is provided with a puncturing structure, and the puncturing structure is arranged close to the bus clamping groove, so that the skin of the bus entering the bus clamping groove is punctured by the puncturing structure. According to the wire clamp, the wire skin of the bus entering the bus clamping groove is punctured, the contact area of the inner core of the bus and the conductive wire clamp is increased, and the reliability and stability of connection between the bus and the conductive wire clamp are improved.

The present invention discloses an aerial automated replacement device for a single lamp controller based on an unmanned aerial vehicle platform, comprising an unmanned aerial vehicle, a mechanical arm and a controller disassembly and assembly mechanism, wherein the mechanical arm is set up on the unmanned aerial vehicle, and the controller disassembly and assembly mechanism is fixed to the end of the mechanical arm; the controller disassembly and assembly mechanism comprises a rotating motor, a mechanical claw housing, a mechanical claw and a camera assembly for visual positioning when replacing the controller; the mechanical claw housing is fixed to the driving end of the rotating motor, the camera assembly is fixed to the mechanical claw housing, and a mechanical claw motor is arranged on the side of the mechanical claw housing close to the controller. In addition, the device is also equipped with an equipment recovery bin and an equipment replacement bin, which can be used to store recovered parts and replacement parts. The invention realizes the automatic replacement of a plug-in type single lamp controller installed on the top of a street lamp fixture in the air through a unmanned aerial vehicle platform, which greatly reduces the maintenance cost and safety hazards of this type of single lamp controller and improves work efficiency.

The invention discloses a plug with a dustproof function, a socket and a connector. The plug is characterized in that a first dustproof assembly is arranged at the front end of the plug; the first dustproof assembly comprises a dustproof front cover, the front part of the dustproof front cover is a face part, and the rear part of the dustproof front cover is an insertion part; an insertion hole is formed in the middle of the dustproof front cover; the dustproof baffle plates are divided into a left layout and a right layout which are respectively coupled to the inner side wall of the insertion part of the insertion hole of the dustproof front cover, the left and right dustproof baffle plates are respectively provided with a connecting push arm, and push columns are arranged on the connecting push arms; a rear cover through hole is formed in the middle of the dustproof rear cover, so that the dustproof baffle is opened and closed to cover or block the insertion hole; the at least one elastic element is supported between the dustproof front cover and the dustproof rear cover; the invention also discloses a corresponding socket and a connector thereof. Double-door double-spring reset is adopted, the structural reliability is higher, and the dustproof effect is better.

The invention relates to a turnover hoisting mechanism and a turnover hoisting method, and relates to the field of building construction, the turnover hoisting mechanism comprises a hoisting frame, a hoisting assembly and a turnover assembly, the hoisting assembly is fixedly or detachably connected with the hoisting frame, and the turnover assembly is fixedly connected with the hoisting frame. The overturning and hoisting method adopts the overturning and hoisting mechanism to overturn and hoist the prefabricated part. The overturning and hoisting mechanism has the beneficial effects that when the overturning and hoisting mechanism is used for overturning or hoisting, only a hoisting belt or a rope connected with a hoisted object needs to be replaced, the working efficiency of hoisting transportation and overturning operation of the integrated module house and the large building component is improved, the investment of production equipment is saved, the equipment is light, convenient to move and low in cost, and the production cost is reduced. And a fixed field is not occupied.