28results about How to "Insulation erosion" patented technology

This utility model relates to the field of gas safety equipment technology and discloses a safety base for a self-closing valve. The base includes a base with a protective mechanism on its top. The protective mechanism includes a protective box, a connecting box on the right side of which is in contact with the protective box. Movable plates are rotatably connected to the bottoms of both the protective box and the connecting box. A retaining seat is fixedly connected to the top of the base, and a self-closing valve is engaged with the top of the retaining seat. A limit component is provided on the top of the protective box, and pads are fixedly connected to the bottoms of both the protective box and the connecting box. A sealing component is provided on the left side of the connecting box. In this utility model, rapid opening and closing is achieved by sliding the movable plate along the base's groove. When opening, simply moving it to the sides releases the limit, and flipping the connecting box and the protective box exposes the self-closing valve, facilitating daily inspection and maintenance. Furthermore, the connecting box and the protective box can be closed during normal storage to protect the self-closing valve.

The utility model discloses an anti-loosening protective cover for a top cover bolt of a gasification furnace, which relates to the field of gasification furnaces, comprises an outer protective shell, an end head, a connecting part and a pressing part, and is characterized in that the outer protective shell is sleeved on the outer side of the bolt and is fixedly connected to the top of a top cover; the end cover is arranged at an opening in the top of the outer protective shell, and the connecting part is used for connecting the end cover and the outer protective shell, so that the end cover is detachably mounted at the top end of the outer protective shell. Therefore, looseness of the bolt caused by stress relaxation and mechanical vibration is effectively restrained, sealing connection between the gasification furnace top cover and the combustion chamber is guaranteed, medium leakage is prevented, the bolt is completely sealed through the outer protective shell and the end cover, erosion of high-temperature corrosion or dust environment to the surface of the bolt is isolated, the service life of the bolt is prolonged, and the service life of the gasification furnace is prolonged. The loosening risk is reduced, and the safety and the stability of the gasification furnace are improved.

The utility model relates to the technical field of inductor terminals, in particular to a copper-clad aluminum structure for an inductor connecting terminal. The connector comprises a connecting terminal and a copper-clad aluminum structure processed at the tail end of the connecting terminal, wherein the copper-clad aluminum structure is provided with a wrapping layer and a solid layer from outside to inside in sequence; the joint of the wrapping layer and the insulating paint layer protrudes outwards to form a protruding step. According to the utility model, the part, which is not coated with the insulating paint, of the tail end of the solid layer is inserted into the copper sleeve, and the wrapping layer extrudes part of the insulating paint layer to form the extrusion layer obliquely wrapping the solid layer, so that the wrapping is tight, and the erosion of the external environment is effectively isolated; the wrapping layer is in close contact with the solid layer, so that the conductivity is good; and a copper surface capable of being directly welded is provided, so that the weldability of the terminal is improved.

This invention discloses a waterborne epoxy curing agent, its preparation method, and its application, belonging to the field of waterborne epoxy coating technology. It solves the problems of slow drying speed, poor flash rust resistance, inadequate water and salt spray resistance, and reliance on organic solvents in existing waterborne epoxy curing agents. The preparation method includes the following steps: adding an aliphatic polyamine to a reaction vessel, heating to 70-80°C, and then adding a mixture of epoxy resin and polyethylene glycol diglycidyl ether dropwise for an addition reaction; maintaining the temperature after the addition is complete, and then performing vacuum distillation; adding maleic anhydride oil to the product after vacuum distillation, and heating to 90-95°C for a reaction; cooling after the reaction, and then adding deionized water dropwise for emulsification to obtain the waterborne epoxy curing agent. This invention utilizes green, solvent-free production, and the resulting curing agent exhibits fast drying speed, excellent flash rust resistance, water resistance, and salt spray resistance.

The utility model provides a multifunctional sealing element testing device. The device comprises a pressure test chamber and a safety monitoring pressure relief assembly, the pressure test chamber comprises an upper die holder and a lower die holder which are detachably clamped, the lower die holder is integrally formed with a medium cavity and is filled with a liquid or gas test medium, and a to-be-tested sealing ring is placed in a sealing groove in the periphery of the cavity; an air inlet and an air outlet in the upper portion of the medium cavity are sequentially connected with a first pipe connector, a copper pipe, a second pipe connector, a first valve block, a third pipe connector and a second valve block, a pressure gauge and a pressure sensor are arranged on the top of the first valve block, the lateral ball valve is a first-stage pressure relief opening, the second valve block is provided with a thermometer and a temperature sensor, and the ball valve on the other side forms a second-stage pressure relief opening. Therefore, temperature-pressure dual-redundancy monitoring and graded pressure relief are realized. The device is compact in structure and easy and convenient to assemble and disassemble, high-temperature corrosive medium and high-pressure coupling loading can be completed in a single platform, data can be collected in real time, and the safety and efficiency of reliability evaluation of the sealing element are remarkably improved.

The utility model discloses a gate valve structure relates to gate valve technical field. Including the valve cover, the valve cover inside is provided with the valve plate, and the valve plate is in the valve cover and goes up and down and lifts to carry out valve opening and closing action, and the valve plate top is provided with valve drive shaft, and the valve drive shaft includes the fixed screw rod of valve plate connection and is used for with screw rod screw joint cooperation realizes the sleeve shaft for valve plate lifting, and the sleeve shaft place is fixed with the outer plastic pipe, and the screw rod place is fixed with the inner plastic pipe. The utility model discloses through the structure setting of inner plastic pipe and outer plastic pipe etc.

The utility model discloses a sliding door and window buffer damping device relates to door and window technical field. The utility model discloses a frame, and the frame inside is installed with the door and window body, and the door and window body one side is provided with sealing mechanism. The utility model discloses the cooperation of the horizontal plate, the movable slot and the opening and closing type sealing gasket in sealing mechanism, effectively insulates the erosion of external environment to buffer mechanism, avoids the aging or damage caused by ultraviolet rays, rainwater and dust, and significantly prolongs the service life of device. Meanwhile, the sealing structure always keeps closed state when the door and window slide, further improves the sealing performance, and the buffer mechanism realizes the primary deceleration through the contact of the roller and the buffer deceleration pad, combines the spring, the elastic deformation of movable plate and absorbs the impact energy, forms the first -stage buffer, and the rubber insertion rod and the buffer pad's friction cooperation further consume the kinetic energy, form second -stage buffer. Multistage buffer design significantly reduces the impact force and noise when the door and window close, and improves the use comfort.

The invention provides low-to-high temperature-resistant non-pollution hydrogen-purity lubricating grease for rubber and a preparation method and application thereof, and belongs to the technical field of lubricating materials, the lubricating grease comprises the following raw material components by mass percentage: 83% of perfluoropolyether PFPE, 10% of polytetrafluoroethylene PTFE as a thickener, 5% of polytetrafluoroethylene PTFE as a solid lubricant, 2% of nano cellulose nanocrystal, 1% of an antioxidant, 1% of a lubricant, and 1% of a lubricant. By combining a preparation method of nanocrystalline mediation, mixing homogenization and grinding degassing, the defects that an existing lubricant cannot cover a wide temperature range of-40 DEG C to 250 DEG C, impurities are easily released when the lubricant is used on an elastomer to influence the purity of hydrogen, hydrogen embrittlement is easily caused when the lubricant does not concurrently with the elastomer, and the lubricant is easy to fall off at high temperature to cause degradation of a rubber sealing element are overcome; the long-acting lubricating protection of the rubber sealing element under the high-temperature working condition of a shield tunnel and hydrogen energy source scenes such as a hydrogen pipeline valve, a fuel cell stack and a hydrogen refueling station is realized, and the abrasion of equipment parts can be effectively reduced while the stable sealing performance is ensured.

The application relates to a high-selectivity acid-resistant nanofiltration membrane and a preparation method and application thereof, and belongs to the field of membrane separation technology. The preparation method of the high-selectivity acid-resistant nanofiltration membrane comprises the following steps: (1) soaking a polysulfone membrane in an aqueous solution containing a strong oxidant and a metal chloride; (2) immersing the membrane treated in the step (1) into a n-hexane solution containing a pyrrole molecule and standing; (3) spraying a mixed ethanol solution of phenol and formaldehyde onto the membrane treated in the step (2); and (4) post-treating the membrane treated in the step (3) in a hot sodium hydroxide solution containing a surfactant to obtain the high-selectivity acid-resistant nanofiltration membrane. The application has the advantages of simple process, easily-obtained raw materials and suitability for industrial production. Meanwhile, the high-selectivity acid-resistant nanofiltration membrane has high selectivity of divalent ions and monovalent ions on the premise of strong acid resistance, and is suitable for salt separation treatment of acid industrial wastewater.

This invention relates to the field of electric vehicle charging technology, specifically to a high-safety, high-power wireless charging device and method for automobiles. The mounting frame and connecting lines are located underground. A sliding groove is formed at the upper end of the mounting frame, and a protective top plate is slidably installed within the sliding groove. The protective top plate is located on the ground. A bidirectional threaded rod is rotatably installed inside the sliding groove. A connecting bracket is movably installed inside the mounting frame, and a charging component is nested inside the upper end of the connecting bracket. An electric push rod is fixedly installed inside the mounting frame, and the output end of the electric push rod is connected to the bottom of the connecting bracket. A protective cleaning mechanism and a heat dissipation adjustment mechanism scrape and clean the surface of the charging component, keeping the coil surface clean and improving coupling efficiency. Simultaneously, hydraulic linkage of the hydraulic cylinder automatically matches the heat dissipation intensity with the charging rate and heat generation intensity, achieving energy saving and high efficiency.

The utility model discloses a gate valve structure relates to gate valve technical field. Including the valve cover, the valve cover inside is provided with the valve plate, and the valve plate is in the valve cover and goes up and down and lifts to carry out valve opening and closing action, and the valve plate top is provided with valve drive shaft, and the valve drive shaft includes the fixed screw rod of valve plate connection and is used for with screw rod screw joint cooperation realizes the sleeve shaft for valve plate lifting, and the sleeve shaft place is fixed with the outer plastic pipe, and the screw rod place is fixed with the inner plastic pipe. The utility model discloses through the structure setting of inner plastic pipe and outer plastic pipe etc.

The application provides a purification and noise elimination integrated secondary return air structure of an air handling unit and a method thereof, and belongs to the technical field of air handling units, wherein the purification and noise elimination integrated secondary return air structure of the air handling unit comprises: an air handling unit, the inside of the air handling unit is provided with a vertical partition plate, a horizontal partition plate, a fan, a fine filter screen and a linkage mechanism, the top and bottom of the horizontal partition plate are respectively provided with a first filter screen and a second filter screen, the top and bottom of the air handling unit are provided with driving mechanisms, the top end of the linkage mechanism is connected with a monitoring mechanism, and the upper side and the lower side of the horizontal partition plate are respectively provided with a secondary return air bin and a primary return air bin. The application utilizes airflow to drive linkage blades to rotate, drives a rotating rail to operate through meshing transmission of bevel gears, and accurately corresponds to the actual air flow rate inside the unit by means of a pressure sensor to sense pressure value changes, so that additional independent speed measuring equipment is not needed, and the real-time performance and accuracy of airflow monitoring are ensured.

The application relates to a primary-secondary fusion built-in isolation knife circuit breaker, which comprises a box body arranged on one side of a pole-mounted circuit breaker, a box cover which is detachably buckled and installed at the top opening of the box body, an isolation knife switch unit arranged in the box body, an electrical connection device arranged on the outer wall of the box body and electrically connected with the isolation knife switch unit, and the electrical connection device being electrically connected with the pole-mounted circuit breaker; a control mechanism is arranged on the front face of the box body, and the control mechanism is used for controlling the opening and closing states of the isolation knife switch unit; when the control mechanism drives the isolation knife switch unit to be in the closed state, the isolation knife switch unit is rotated to be in plug-in conduction with the corresponding static contact; when the control mechanism drives the isolation knife switch unit to be in the open state, the isolation knife switch unit is rotated to the opposite direction to be in plug-in conduction with the corresponding safety device, and reliable isolation is completed; the safety device is connected with a grounding bolt arranged on the side of the box body; and the application has the advantages of reasonable structure, good protection effect, stable and reliable opening and closing operation and guaranteed electrical isolation.

This utility model discloses a motor grounding wire, relating to the field of motor grounding wire technology. It includes a grounding wire, two sets of terminals, and a motor grounding screw. One set of terminals has a conductive ring fixed to one side, contacting the motor housing, and a protective cover fixed to its outer side. A sleeve is fixed inside the protective cover. A double-sided bolt is connected to the inner side of the sleeve, with an external thread on the outer side of the double-sided bolt that connects to the sleeve's thread. An internal thread on the inner side of the double-sided bolt connects to the motor grounding screw. The external thread of the double-sided bolt and the sleeve, along with the internal thread and the motor grounding screw, form a double-threaded locking mechanism. The contact ring presses against the motor housing, and the spring is passively compressed, forming a composite structure of rigid connection and elastic fastening. This effectively counteracts the risk of loosening caused by motor vibration. Compared to traditional single-nut connections, the vibration resistance is significantly improved, preventing grounding terminal loosening or detachment caused by vibration and ensuring the effectiveness of grounding protection.

The application provides a kind of integrated in vehicle chassis anti-collision wireless charging receiving end protection structure, it relates to new energy automobile wireless charging technical field, including: symmetric fixed installation in the inside of battery lower guard plate of vehicle chassis mounting plate, drive mechanism being located at the opposite side of the mounting plate and wireless charging receiving end assembly being connected with the drive mechanism;The one end of the drive mechanism is connected with the bearing frame, the inside of the bearing frame is contacted with the wireless charging receiving end assembly through the spring buffer anti-collision mechanism at one end;The other end is directly contacted with the wireless charging receiving end assembly;The application adopts the storage type design completely integrated in the inside of battery lower guard plate of chassis, the wireless charging receiving end is completely withdrawn into the closed storage cavity under non-charging state, and the bottom opening is closed by cooperating with the closable protection telescopic plate, to form a fully enclosed protection space, which reduces the damage probability of the receiving end from the root.

The invention discloses a titanium dioxide-quantum dot-silicon dioxide composite material with a multilayer core-shell structure as well as a preparation method and application of the titanium dioxide-quantum dot-silicon dioxide composite material. The core layer is composed of titanium dioxide nano-particles, the quantum dot middle layer is adsorbed to the surface of the core layer in a bridging mode through a silane coupling agent, and the compact silicon dioxide shell layer wraps the quantum dot middle layer. The method comprises the following steps: titanium dioxide nanoparticles are subjected to silanization modification to introduce sulfydryl, quantum dots are subjected to ligand exchange to obtain water-soluble sulfhydrylated quantum dots, the water-soluble sulfhydrylated quantum dots and the titanium dioxide nanoparticles form a quantum dot-titanium dioxide compound through interaction of the sulfydryl, and finally, a silicon dioxide shell is formed through silicon source hydrolytic condensation under a weak alkaline condition. Through core-functional layer-shell collaborative design, the problems that a traditional quantum dot composite material is weak in binding force, the quantum dots are prone to falling off and the stability is poor are solved, and the quantum dot composite material can be widely applied to the fields of photoelectric devices, photocatalytic materials and biological fluorescent markers.

The utility model discloses a movable smoke hood lifting mechanism of converter relates to movable smoke hood lifting mechanism technical field of converter, include: converter platform, the outer surface top rear part of converter platform is installed with the sealed cabin, the outer surface of sealed cabin is provided with ceramic coating, and the inside bottom of sealed cabin is provided with the notched, the inside front section of sealed cabin is installed with the hydraulic cylinder, the outer surface top of hydraulic cylinder electrically installs hydraulic drive unit, through the full -seal hydraulic drive and chain drive design, effectively avoids the problem that traditional screw rod is easy to jam. The sealed cabin is covered with ceramic coating, the hydraulic cylinder and the hydraulic drive unit form the full -enclosed structure in the inside, the high temperature dust erosion is isolated, compared with exposed type drive motor, the service life is prolonged, adopts chain cooperation double runner (first runner, second runner) transmission simultaneously, eliminates the risk of occlusion of screw pair because of dust accumulation, ensures that still can steady operation under 1200 DEG C flue gas environment.

This utility model relates to the field of electrostatic precipitator flue gas duct technology, and discloses a pre-flue gas duct device for electrostatic precipitators, including a flue gas duct. A spray device is installed inside the vertical section of the flue gas duct. A liquid receiving tank is fixedly installed at the bottom of the flue gas duct, and a drain pipe is embedded in the bottom of the liquid receiving tank. An electrically controlled valve is installed on the drain pipe. The spray device is located directly below the liquid receiving tank. A filter plate is embedded inside the flue gas duct, positioned directly above the liquid receiving tank. A sealing plate is slidably installed on the flue gas duct, and a handle is fixedly installed on the sealing plate. A slag pushing mechanism and a slag receiving mechanism are provided on the flue gas duct. This utility model, through spray granulation, solid-liquid separation, and automatic slag discharge design, effectively improves dust flowability, significantly reduces the risk of ash hopper blockage, and enhances the operational stability and maintenance convenience of the dust removal system.

The utility model relates to the technical field of charging piles, in particular to a charging pile payment device. The device aims at solving the problems that an outdoor charging pile operation screen is prone to being affected by the environment and damaged, and an existing baffle structure is incomplete in protection and inconvenient to operate. The device comprises a charging pile control box body and an operation screen embedded in the charging pile control box body, side plates are fixed to the two sides of the operation screen, and a baffle used for shielding the operation screen is hinged between the side plates. The top of the baffle is connected with the box body through a waterproof elastic band, and the elastic band always covers the hinged gap to play a waterproof role when the baffle is opened and closed and provides auxiliary pulling force for opening of the baffle at the same time. A clamping plate with a clamping groove is arranged on the inner side of the baffle, a clamping column pushed by a spring is arranged in the side plate, and automatic locking can be achieved when the baffle is closed. And the side plate is also provided with an elastic sheet which can buffer the movement of the baffle plate during unlocking, so that sudden bounce is avoided. The device can effectively protect the operation screen from being exposed to the sun and rain, and can guarantee the convenience and safety of payment operation.

The application discloses an anti-impact and anti-vibration dam body hydraulic structure, which comprises a plurality of protection units arranged in an array on a water-impingement surface of the dam body, each protection unit comprising a flexible protection plate, a buffer column, a damping and shock-absorbing assembly and a secondary shock-absorbing assembly; the flexible protection plate directly receives water flow impact and silt abrasion; the buffer column uniformly transmits the impact force to the damping and shock-absorbing assembly for preliminary energy consumption; the secondary shock-absorbing assembly is linked with the damping and shock-absorbing assembly to further dissipate the residual impact energy. The application replaces the traditional rigid anti-impact mode with a hierarchical energy dissipation system, effectively solves the problems of easy cracking, stress concentration and insufficient energy dissipation on the water-impingement surface of the dam body, can reduce the impact force transmitted to the main body of the dam body, improves the anti-impact and anti-vibration performance and durability of the dam body, and is suitable for various reservoir and riverway dam body engineering.

This utility model discloses a raw material mixing device for plastic carrier belt production, including a support frame. A U-shaped mixing chamber is installed on the top of the support frame. A servo motor is installed on one side of the U-shaped mixing chamber. A discharge pipe is connected to the bottom of the U-shaped mixing chamber on the side away from the servo motor. A feed pipe is connected to the top of the U-shaped mixing chamber on the side near the discharge pipe. This utility model uses a storage component to form a closed space with a top plate and a sliding partition. During the mixing process, the cleaning component is stored and protected, preventing it from contacting the raw material dust in the mixing chamber. This prevents brush contamination at the source and ensures that the purity of the raw materials in subsequent mixing operations is not affected by the cleaning component. At the same time, the closed environment isolates the brush bristles from air humidity and external collisions, slowing down the aging of the cleaning brushes, extending their service life, and reducing the frequency of maintenance and replacement.

This utility model provides a conveniently stored countertop water flosser, including a main unit and a water tank. The main unit includes a housing and a water flossing device disposed within the housing. The water tank is detachably connected to the housing. The water tank has a water storage tank and a positioning slot with opposite openings and corresponding vertical positions. The inner walls of the water storage tank and the positioning slot match the outer wall of the housing. The water storage depth of the water storage tank is greater than the depth of the positioning slot. The water storage tank has a drain hole, and the top of the main unit has a water inlet corresponding to the drain hole, which communicates with the water flossing device. In use, the water storage tank opening faces upward, and the positioning slot is fitted and snapped onto the top of the housing, aligning and communicating with the drain hole and the water inlet. When stored, the positioning slot opening faces upward, and the water storage tank fits over and wraps around the perimeter of the housing to reduce the storage space required for the water flosser. The water tank is highly compressed when stored, reducing its storage volume. Inverting the water tank forms a protective cover, isolating the main unit's circuitry and the water flosser's body from moisture and dust.

The utility model belongs to the technical field of screw drilling tools, and particularly relates to a high-speed transmission shaft assembly which comprises a transmission shaft, a transmission shaft sleeve and a transmission shaft sleeve. The upper TC bearing static sleeve is in interference fit with the transmission shaft; the lower TC bearing static sleeve is in clearance fit with the transmission shaft; the sealing oil injection device comprises a sealing piston located at the upper end of the transmission shaft and a U-shaped sealing ring; the V-shaped sealing ring, the spring and the pressurizing ring are positioned at the lower end of the transmission shaft; lubricating agents are injected into the transmission shaft assembly. According to the utility model, the reliability and the service life of the screw drill are obviously improved and prolonged through structural innovation. Firstly, a traditional upper TC bearing movable sleeve is omitted, a wear-resistant alloy layer is overlaid on the surface of the transmission shaft, the number of kinematic pairs is reduced, the failure problem caused by abrasion of the movable sleeve is avoided, and meanwhile the manufacturing cost is reduced.

This utility model provides a high-precision positioning module conveyor belt, relating to the field of conveyor belt technology. It includes a support frame with a horizontal plate in the middle. A support column and reinforcing rod are fixedly installed at the bottom of the horizontal plate. A rotating rod, a rotating roller, and a rotating shaft are installed at the top of the support frame. A pressure block and a protrusion are also fixedly installed at the top of the support frame, improving operational stability and positioning accuracy. Multiple sliding connection structures, such as the rotating rod, pressure block, and mounting groove, combined with limiting elements like clamping plates and limiting grooves, ensure precise and controllable trajectory of moving parts. The built-in sliding plate-sliding block-push plate linkage mechanism of the protrusion enables dynamic fine-tuning. The tight fit design of the pressure block to the rotating shaft eliminates gap errors. A motor-driven gear-chain transmission system replaces traditional friction transmission, offering higher transmission efficiency and durability. An adjustment device consisting of a threaded rod and a throttle handle facilitates rapid parameter calibration.

The utility model discloses an anti-corrosion high-frequency reactor assembly of a hydrogen fuel cell system, which comprises an iron core assembly and a coil, the coil is wound on the iron core assembly, and two ends of a reactance wire are provided with quick connection structures. The quick connection structure comprises a rubber outer sheath and a copper pipe inner core, the outer sheath and the wire skin are integrally formed, and the copper pipe inner core is connected with the reactance wire core in a sleeving mode and elastically clamps the external wire, so that quick and reliable anti-corrosion connection is achieved. The iron core assembly is composed of an upper core plate, a lower core plate, a center iron rod and a side iron plate, and the center iron rod is connected and fixed through threads and sleeved with a winding support and a ceramic gasket to enhance stability. The anti-oxidation layer is sprayed on the surface of the iron core assembly, and corrosion resistance is remarkably improved. The utility model is suitable for hydrogen fuel cells and other high-corrosion environments, and has the advantages of strong corrosion resistance, reliable connection, stable structure, convenient maintenance and the like.

The utility model provides a kind of connecting protection mechanism for shell-and-tube heat exchanger, including tube bundle, the end head position fixed mounting of tube bundle is equipped with limit disc, wherein end head passes through the tube sheet, and is set into the tube bundle hole of outer hanging sealing disc, the tube bundle is welded together with tube sheet, and form the weld area, the tube sheet and outer hanging sealing disc are equipped with the weld rubber ring between assembly, outer hanging sealing disc is fixedly installed together by bolt with tube sheet, outer hanging sealing disc is fixed with protective outer ring by welding;The utility model constructs double protection with limit disc, weld rubber ring and outer hanging sealing disc, prevents medium from infiltrating weld, adapts high-risk medium working condition;Protective outer ring insulates erosion, disperses stress, prolongs equipment life;Dismountable bolt connection is convenient for seal replacement, reduces maintenance cost;Arc weld and conical curved surface design, further strengthen sealing and structural stability.

The utility model discloses a motor assembly installation structure, and belongs to the field of motor assembly installation. Comprising a motor assembly which is provided with a base. The mounting assembly is arranged below the base and comprises a mounting bottom plate used for supporting the base, two sets of limiting strips are symmetrically welded to the mounting bottom plate, the two sets of limiting strips are spaced in parallel, and each limiting strip is of an L-shaped structure; u-shaped sliding grooves are formed in the opposite inner side walls of each set of limiting strips, sliding rails are arranged on the two sides of the base, and extending parts are symmetrically welded to the faces, away from each other, of the two sets of limiting strips. A locking assembly is mounted at each extension part, and the side surface of each extension part is connected with a rainproof cover through a spring hinge. According to the motor assembly mounting structure, sliding positioning is achieved through the base sliding rail and the limiting strip sliding groove, self-locking fixing is achieved in cooperation with the locking assembly lever, tools are not needed, and adaptation automation is achieved. The device is convenient to disassemble, shortens the maintenance time, is suitable for a space-limited scene, and prevents the rain cover and the sealing gasket from being eroded and rusted.

The application relates to the field of overhead rail systems, and relates to a turnout for an overhead rail system, which comprises a cross rail, a vertical rail and a guide rail; the vertical rail is communicated with the cross rail through an arc-shaped rail, the guide rail is located at the connection of the cross rail and the arc-shaped rail, and the guide rail is driven by a power mechanism inside the cross rail and the arc-shaped rail; the power mechanism comprises a rotating shaft and a driving assembly; the rotating shaft is rotatably installed in a shaft sleeve; one end of the rotating shaft is fixedly connected with the guide rail, and the other end is sleeved with a limiting block; the driving assembly comprises an action rod fixedly connected with the side surface of the rotating shaft; the other end of the action rod is hingedly connected with a driving rod; one end of the driving rod close to the action rod is provided with a limiting support frame; one end of the driving rod away from the action rod is on a swing mechanism; and the swing mechanism is used for driving the driving rod to drive the action rod and the rotating shaft to rotate around the rotating shaft shaft center with the limiting support frame as a fulcrum. The application reduces the wear and tear and the risk of jamming of the turnout under the scene of high-frequency switching, significantly reduces the maintenance frequency and cost, guarantees the smooth operation of the conveying carrier, and improves the overall reliability of the turnout.