39results about How to "Improve opening and closing efficiency" patented technology

The invention discloses an automatic relay assembling carrier and an automatic assembling platform thereof, the automatic relay assembling carrier comprises a carrier seat body assembly and a carrier clamping assembly, and the carrier seat body assembly is horizontally arranged on the automatic relay assembling platform; the carrier clamping assembly is arranged on the carrier seat body assembly; the carrier seat body assembly comprises a base, a driving part and an elastic clamping part; the driving part comprises a main driving rod and an auxiliary driving rod; the number of the elastic clamping parts is two, and the two elastic clamping parts are arranged in the two sliding grooves correspondingly. The elastic clamping component comprises a spring seat, a guide column, a spring and a fixing seat. According to the invention, a plurality of stations are arranged along the circumferential direction and synchronously rotate to realize automatic station switching and assembling, a relay is fixed in a flexible clamping manner, and opening is realized through single linear conversion into inclined pushing and driving of two groups of elastic clamping parts, so that the opening and closing efficiency is effectively improved and the cost is reduced.

The utility model relates to the technical field of valves, in particular to a stop valve with a motor. The stop valve with the motor comprises a valve body, a valve element assembly and the motor, a first opening and a second opening are formed in the valve body, the valve body assembly comprises a movable valve element and a static valve element, the static valve element is arranged in the valve body and located between the first opening and the second opening, a first through hole is formed in the static valve element, and the end, close to the static valve element, of the movable valve element abuts against the static valve element; when the movable valve element rotates into the projection area of the first through hole in the axis direction of the static valve element, the movable valve element covers the first through hole, and the motor is connected with the movable valve element. The stop valve with the motor has the advantages that the movable valve element can rapidly close or open the first through hole through rotation, the opening and closing efficiency of the device is improved, the requirement for the motor is low, the load of the motor is small, the valve element assembly does not need to move up and down in the axial direction to achieve valve opening and closing, and therefore the overall height of the stop valve with the motor is reduced, and space is saved.

This utility model relates to the field of switch protection technology, specifically a protective device for preventing accidental touch of a touch switch. It includes a protective housing, with a resistive touch switch fixedly connected to the center of one side of the inner wall of the housing. A blocking flange is fixedly connected to the inner wall of the housing near the edge of the opening. The advantages of this utility model are: Touch operation is achieved by applying pressure to the resistive touch switch by pushing the pressure plate. However, before pressing, the push plate must first be pushed upwards to disengage the locking pin, thus unlocking the switch. This opening method effectively prevents children from accidentally pressing the switch, thus avoiding abnormal opening and closing, improving the protective effect, preventing damage caused by repeated high-frequency pressing by children, and extending the service life. The operation of pushing the push plate and then pressing aligns with user habits, reducing the impact of unlocking operations, improving opening and closing efficiency, and making the entire opening and closing operation smoother and more convenient to use.

This utility model discloses a stainless steel storage tank with good sealing performance for chemical production, including a tank body. A sealing cover is provided on the top of the tank body for sealing. A driving pressing assembly is provided on the surface of the tank body. The driving pressing assembly is used to drive and press down the sealing cover, improving the sealing performance between the sealing cover and the tank body. A connecting rotating assembly is provided on the sealing cover. This utility model achieves automated pressing and releasing of the sealing cover through the driving pressing assembly, replacing the traditional one-by-one bolt tightening operation. The sealing ring at the bottom of the sealing cover, together with the annular positioning block and annular positioning groove at the top of the tank body, form a triple sealing structure. The annular positioning block is embedded in the annular positioning groove for precise positioning, preventing the sealing cover from shifting. The pressing plate applies uniform pressure through the driving pressing assembly, ensuring a tight fit between the sealing ring and the upper edge of the tank body, eliminating local gaps.

The present invention belongs to the technical field of shoe mold demoulding, and in particular, is an automatic rapid demoulding mechanism and method for shoe mold cores used in a shoe production line, comprising an annular conveyor belt and a mold arranged on the upper surface of the annular conveyor belt, the outer surface of the annular conveyor belt is respectively provided with a mechanical arm for spraying a demoulding agent on the mold and an injection molding gun for injecting molding into the mold, the two side surfaces of the annular conveyor belt close to the mechanical arm are respectively installed with a first support frame and a second support frame, and the surface of the second support frame is provided with a demoulding mechanism. The automatic rapid demoulding mechanism and method for shoe mold cores used in a shoe production line, by providing a demoulding mechanism, using a shovel block to insert into the gap between the mold and the shoe mold core, and using the relative rotation of the two shovel blocks to clamp and remove the shoe mold core, avoids the problem of uneven force in manual operation, enables the shoe mold core to be completely removed, and can accelerate the demoulding speed, thereby improving the demoulding efficiency.

The utility model discloses a cable trench cover plate capable of being opened and closed through electric control, and belongs to the field of construction facilities. The device comprises a fixed cover plate and a movable cover plate which are adjacent to each other, wherein the contact position of the fixed cover plate and the movable cover plate is provided with an oblique angle structure; the fixed cover plate is fixedly installed on the cable trench, and a driving device is fixedly installed below the fixed cover plate and drives the movable cover plate to move in the inclination direction of the oblique angle structure. The cable trench cover plate solves the problem that a traditional cable trench cover plate needs to be opened and closed manually, and is simple in structure, small in occupied space and low in manufacturing cost and maintenance cost.

The water conservancy project construction waterproof drainage device comprises a filter pipe, filter discs are arranged on the two sides of the interior of the filter pipe, the left side of the filter pipe is fixedly communicated with a water inlet pipe, the right side of the filter pipe is fixedly communicated with a water outlet pipe, and the two sides of the bottom of the filter pipe are connected with butt joint pipes. The fixing effect between the first reinforcing plate and the second reinforcing plate is stable, the first reinforcing plate and the second reinforcing plate are not prone to being damaged and loosened by external force, when the first reinforcing plate and the second reinforcing plate need to be separated, the filling limiting plate is pulled forwards and retreats from the inner side of the clamping plate, the clamping plate loses supporting of the filling limiting plate, and the clamping plate can be separated from the first reinforcing plate and the second reinforcing plate. The clamping plates are overturned and contracted towards the sides close to each other, the clamping plates are separated from the first reinforcing plate, the first reinforcing plate and the second reinforcing plate can be overturned and separated, the advantage of high safety and reliability is achieved, the filter pipe and the impurity accumulation pipe are fixed through the clamping assembly fixed in a large area and cannot be forcibly damaged, and the waterproof and drainage stability is improved.

The utility model provides an automatic container door opening device which is characterized in that a plurality of storage units are arranged in a container, a unit door used for opening and closing the storage units is hinged to an opening of each storage unit, the automatic container door opening device comprises a rack, a first transverse moving module and a door opening mechanism, the first transverse moving module is arranged on the rack, and the first transverse moving module is arranged on the rack; the door opening mechanism is connected to the rack in a sliding mode and connected with a movable part of the first transverse moving module. The first transverse moving module is used for driving the door opening mechanism to slide on the rack in the first horizontal direction so as to drive the door opening mechanism to move to the outer side of any storage unit of the container. The door opening mechanism is used for opening or closing unit doors of the storage units. According to the automatic container door opening device, automatic opening or closing of the unit door on the container is achieved, so that the opening and closing efficiency of the unit door is improved, and the labor cost is reduced.

The utility model relates to a ring main unit disconnecting switch opening and closing running-in device which comprises a rack, one side of the rack is provided with an opening, the opening end is provided with a connecting part connected with a disconnecting switch, the rack is provided with a driving module and a control module, the driving module comprises a motor, and an output shaft of the motor faces the opening end and is provided with a universal coupling. The universal coupling is used for being connected to a handle shaft of the isolating switch; the control module comprises a controller and a counter, the controller is in signal connection with the counter and the motor, and the controller is used for controlling starting, stopping and steering of the motor and controlling the number of times of opening and closing; according to the utility model, the opening and closing running-in efficiency of the isolating switch is obviously improved, and the time and cost of manual operation are reduced.

The utility model discloses a side door opening actuator which comprises a shell, a driving assembly, a first transmission assembly and a second transmission assembly, wherein the driving assembly, the first transmission assembly and the second transmission assembly are all arranged in the shell. The first transmission assembly comprises an input worm, an input bevel gear, an output worm and an output bevel gear, the input worm is connected with the output shaft of the driving assembly, the output worm and the input worm are distributed at intervals and form a certain included angle, the input bevel gear is arranged on the output worm in a sleeving mode and is in meshing transmission with the input worm, and the output worm is in meshing transmission with the output bevel gear; the second transmission assembly comprises a lead screw, a sliding base and a connecting rod, the end of the lead screw is inserted into an inner hole of the output bevel gear, the lead screw is sleeved with the sliding base and is in threaded connection with the sliding base, one end of the connecting rod is fixed into the sliding base, and the other end of the connecting rod extends out of the shell to be connected with the side door. The first transmission assembly is high in transmission ratio and capable of saving space, so that the structure is small, light, time-saving and efficient.

The utility model discloses a manual and electric dual-purpose valve opening and closing device which comprises an electric driving head and a connecting rod arranged below the electric driving head and provided with an opening and closing head, and a control system and a motor controlled and connected by the control system are arranged in the electric driving head. The power socket is connected with the motor, the start-stop button, the forward and reverse rotation button, the rotation speed gear selection button and the display screen are in control connection with the control system, the operation handles are arranged on the two sides of the electric driving head, a motor screw is arranged at the bottom, a clamping groove is formed in the bottom of the motor screw, and a clamping block matched with the clamping groove is arranged at the top of the connecting rod. A lengthening rod is arranged between the electric driving head and the connecting rod, a clamping block is arranged on the top of the lengthening rod, a clamping groove is formed in the bottom of the lengthening rod, the clamping groove in the motor is in matched socket connection with the clamping block of the lengthening rod, and the clamping groove in the lengthening rod is in matched socket connection with the clamping block of the connecting rod. The manual and electric dual-purpose valve opener is suitable for valves with different depths, is convenient to carry, improves the opening and closing efficiency of the valve, and saves manpower.

The utility model relates to the technical field of steelmaking ladle processing, and discloses an argon blowing stirring device of a steelmaking ladle, which comprises a base, a supporting seat is fixed on one side of the top end of the base, a gear is mounted on one side in the supporting seat, a first servo motor is mounted at one end of the gear, a rack rod is meshed with one side of the gear, and a second servo motor is mounted at the other side of the gear. And an argon leading-in pipe is arranged on one side of the bottom end of the discharging pipe, a cover plate is installed at the top end of the material barrel, and a hole body matched with the rotating shaft is formed in the middle of the interior of the cover plate. Through the arrangement of the first servo motor, the gear, the rack rod, the moving plate and other components, when the device is used, the rotating shaft drives the stirring blades to rotate to stir molten steel, the stirring blades can change the fixed stirring position when stirring, the stirring blades move up and down in the material barrel to stir the molten steel up and down, and the stirring efficiency is improved. And argon and molten steel are fused more sufficiently, the fusion effect is better, and the machining quality of steel is improved.

This invention relates to a portable pipeline valve speed-changing opener / closer, belonging to the technical field of valves. It includes a working box and a fixing device. The working box contains a speed-changing mechanism capable of changing speeds, and the lower end of the working box has a quick-installation mechanism connected to the speed-changing mechanism. This invention can change the rotational speed of the valve switch by changing the speed of the device, thereby improving the efficiency of valve opening and closing. Furthermore, this invention enables quick engagement of the valve switch, ensuring that the valve switch can rotate with the rotating steering wheel at the top of the working box. Simultaneously, this invention can quickly engage steering wheels of different valve sizes, improving the applicability of the device.

The utility model relates to an oven, including oven main part, door body and drive assembly, wherein drive assembly realizes automatic opening and closing through the cooperation of connecting rod and drive part, the door body. The connecting rod includes first rod part and second rod part, and the fixed included angle is formed between the two, when the drive part actuates, the deflection of connecting rod makes the door body open and close stably and exerts the thrust, and the door body opens and closes around the rotating shaft. The utility model realizes the automatic opening and closing of oven door body through the mechanism that drive part and the connecting rod with the fixed included angle constitute. Specifically, the drive part is installed on the adjacent side of the opening side of oven main part, the connecting rod includes first rod part and second rod part, and the fixed included angle is formed between the two. When the drive part drives the motion of connecting rod, under the guidance of fixed included angle, the deflection of connecting rod is produced in the action process, and the thrust or the pulling force with the bias direction is exerted on the door body at the end away from the drive part, thereby driving the door body to rotate, and the automatic opening and closing of door body are realized.

The utility model discloses a temperature control release device for a fire resisting shutter of a large-torque roller structure, which comprises a fixed plate, a temperature control release device body is arranged on the fixed plate, a steel rope is arranged on the temperature control release device body in a penetrating manner, a grasping ring is arranged on the steel rope, a mounting seat is detachably arranged on the steel rope, and a handle is arranged on the mounting seat. Through holes are symmetrically formed in the positions, corresponding to the steel rope, of the mounting base, a through groove is formed in the mounting base, a rapping bar is arranged in the through groove, a roller body is arranged on the rapping bar and corresponds to the steel rope, and a groove is formed in the position, corresponding to the steel rope, of the roller body. The rapping bar with the roller body is adjusted relative to the position of the through groove, the steel rope pulls and drives the rapping bar with the roller body to be adjusted relative to the through groove in a lifting mode, prying operation and efficient opening and closing of the external brake assembly are achieved, and the opening and closing efficiency is improved.

The present invention discloses an auxiliary opening and closing device for a screw cap of a cell cryopreservation tube, comprising a fixed plate, a tube rack, an electric drill main unit, a gas spring and a rotating head. The tube rack is placed on the fixed plate, a vertical connecting column is arranged on the fixed plate, one end of a first connecting rod is rotatably connected to the connecting column, a rotating shaft is arranged on the top of the other end of the first connecting rod, a first connecting plate is fixedly connected to the rotating shaft, the electric drill main unit is fixedly connected to the second connecting plate, the bottom end of the second connecting plate is connected to the bottom end of the first connecting plate through the second connecting rod, one end of the gas spring is hinged to the first connecting plate, and the other end is hinged to the third connecting rod, and the rotating head is fixedly arranged on the output shaft of the electric drill main unit. Method of use: by adjusting the position of the electric drill main unit, the rotating head is covered on the screw cap to be screwed, and then the electric drill main unit is turned on, and the screw cap is driven to rotate by the rotating head. The present invention can replace the manual contact screwing operation, greatly reduces the risk of contamination by exogenous factors, and improves the opening and closing efficiency of the screw cap.

The invention provides a railway vehicle door pedal system and a railway vehicle. The railway vehicle door pedal system comprises a door pedal body, a movable cleaning mechanism, a mounting mechanism and a mixed display mechanism. The movable cleaning mechanism is used for automatically conducting sliding cleaning on the outer wall of the door pedal body when the door pedal body is used, and the movable cleaning mechanism is located in the storage box; the mounting mechanism is positioned on the movable cleaning mechanism and is used for quickly dismounting a cleaning part of the movable cleaning mechanism; and the mixed display mechanism is used for mixing the alcohol in the movable cleaning mechanism and displaying data when the alcohol is used up, and the mixed display mechanism is located in the movable cleaning mechanism. Impurities and dust are prevented from being brought into the storage groove, the pedal opening and closing efficiency is improved, the cleaning device is convenient to detach and replace and can be recycled, the cleaning working state is intelligently displayed, the safety and convenience of passengers getting on and off the bus are improved, and the operation efficiency of the bus is guaranteed.

The invention relates to the technical field of soft boxes, in particular to an opening and closing mechanism, a soft box and a studio lamp. The rotating body comprises a rotating ring and a rotating handle which are connected with each other, the middle shaft body is provided with a plurality of rotating joint assemblies and a power-assisted handle, the power-assisted handle is fixedly arranged at one end of the middle shaft body, and the rotating joint assemblies are arranged in the circumferential direction of the middle shaft body at intervals; each rotating joint assembly is rotatably arranged on the middle shaft body; the rotating ring is rotatably arranged on the middle shaft body in a sleeving mode, the inner wall of the rotating ring is provided with a linkage part, the linkage part abuts against part of the outer wall of each rotating joint assembly, and the linkage part drives the rotating joint assemblies to rotate relative to the middle shaft body; the rotating joint assembly can be connected with the supporting strip. According to the technical scheme, the opening and closing mechanism aims at improving the opening and closing efficiency of the soft box and reducing the use difficulty.

The utility model provides an air guide mechanism which comprises an air pipe, and the air pipe is provided with a first air outlet and a second air outlet. The air pipe is used for being installed on a machine body of the air pipe indoor unit, the first air outlet is located in the side face of the air pipe indoor unit, the second air outlet faces downwards, and therefore the air pipe indoor unit can discharge air towards the side face through the first air outlet and can discharge air downwards through the second air outlet. Compared with a single air outlet mode of an air duct indoor unit in the prior art, the air guide mechanism can enable the air outlet modes of the air duct indoor unit to be more diversified so as to meet different use requirements of users.

The utility model provides a pressure cooker which solves the problem that in the prior art, a pressure cooker is poor in sealing performance. A pressure cooker comprises a cooker cover, a cooker body, a cooker beam and a cooker cover lifting assembly, the cooker cover is detachably arranged on the cooker body, and the cooker beam is located above the cooker cover; the pot cover lifting assembly comprises an operating part and a connecting rod, the operating part is located at the upper end of the connecting rod, and the connecting rod penetrates through the pot beam and drives the pot cover to lift through the connecting rod; the pot body is provided with a blocking part used for blocking the pot beam from rising. When the pot cover and the pot body are in a locked state, the pot cover descends to be buckled on the pot body, and the two ends of the pot beam are in a blocked state by the blocking parts. The connecting rod is driven by the operation part to ascend and descend, so that the cooker cover is pressurized, the position of the cooker cover is limited through the blocking part, the opening and closing mode of the cooker cover of the pressure cooker is simplified, the structure is simple and reliable, assembling is easy, the opening and closing efficiency is high, cost is low, and operation convenience is effectively improved.

The utility model relates to the technical field of automobile high -voltage wire harness detection, specifically related to a kind of automobile high -voltage wire harness detection plug fixing device, including the base fixedly connected on detection table by bolt, detection plug is rotatably connected on the base by rotating part, the lower ring piece is fixedly connected with the top of the base and located the front end of detection plug, the lower ring piece one side rotatably connected with upper ring piece, the lower ring piece and upper ring piece other side are connected by buckle type, the lower ring piece and upper ring piece inside are all installed with clamping structure;The scheme is through adjustable clamping structure and control electric telescopic rod, realize the stable fixation of wire harness, avoid winding, bending, improve detection accuracy and efficiency;And through the elastic clamping structure of compression spring and arc plate, wire harness of different diameter can be self-adapting, provide uniform clamping force, prevent wire harness sliding or damage, through the buckle type connection design makes the opening and closing efficiency of upper and lower ring piece to improve 50%.

According to the split type semiconductor welding furnace body, the lifting mechanism is arranged, so that the cavity cover right facing the cavity moves in the vertical direction, split type arrangement of the cavity cover and the cavity is achieved, maintenance, overhaul and replacement of the cavity or the cavity cover are facilitated, the opening side of the cavity is completely opened conveniently, and the service life of the cavity is prolonged. The cavity cover is arranged in the cavity so as to conveniently take and place materials and maintain the internal structure of the cavity, and the cavity cover only executes the lifting action, so that the cavity cover is ensured to be just opposite to the cavity all the time in the moving process, a gap formed by a horizontal distance between the cavity cover and the cavity is avoided, and the sealing performance of the cavity cover covering the cavity is ensured; through the lifting mechanism and the locking mechanism, automatic locking and separation of the cavity cover and the cavity are achieved, personnel scalding caused by manual operation is avoided, and the opening and closing efficiency of the cavity cover is improved.

The invention relates to the field of flow regulating valves, in particular to a multi-channel flow regulating valve. Comprising an upper injection pipe, a lower injection pipe, an upper injection pipe speed regulating head and a lower injection pipe speed regulating head, the upper injection pipe speed regulating head and the lower injection pipe speed regulating head are of two columnar cavity structures with opposite openings, the outer ring of the lower injection pipe speed regulating head and the inner ring of the upper injection pipe speed regulating head are both provided with threads matched with each other, and the bottom of the lower injection pipe speed regulating head is communicated with the lower injection pipe; a speed control head is arranged in the center of the lower portion of the upper injection pipe speed adjusting head. According to the device, the flow speed is controlled by rotating the upper injection pipe speed adjusting head, the flow speed is known by observing the position scale of the upper injection pipe speed adjusting head, a worker can simply set the dripping speed, the fixed cover and the movable cover are arranged, the worker can be prevented from touching and adjusting after the worker finishes adjusting, and the working efficiency is improved. And the lock catch is attracted by the magnet to be opened and closed, so that the opening and closing efficiency is high, and only attraction and pulling are needed.

The utility model provides a pressure-limiting control mechanism and an off-peak water storage and supply system including the same, the pressure-limiting control mechanism includes: a first control valve including a first valve body, a valve core and a first piston movably arranged in the valve core, a piston cavity is formed between one end of the first piston and the inner wall of the valve core, and the other end is provided with a conduction hole communicated with a leading-in end and the piston cavity in a penetrating manner; the first piston blocks the water inlet end of the first valve body under the elastic action of the first elastic piece; the second control valve comprises a second valve body and a second piston which are respectively connected with the piston cavity and the water outlet end of the first valve body through a communication channel and a drainage channel, a guide hole communicated with the communication channel and the drainage channel is formed in the second valve body, the second piston comprises a plugging part and a pressed part which are arranged at an interval, and the water outlet end of the communication channel is located between the guide hole and the pressed part; and the second piston blocks the guide hole through the blocking part under the elastic action of the second elastic piece. The water storage work of the regulation and storage water tank can be controlled to be automatically started and stopped along with the pressure of a municipal pipe network in a mechanical control mode for peak shifting water storage.

The utility model provides a retort cover hoisting device. The retort cover hoisting device comprises a fixed column; the rotary mechanism comprises a rotary column rotatably mounted on the fixed column and a driving assembly for driving the rotary column to rotate; the hoisting mechanism comprises a first hoisting arm which is fixed on the rotary column; one end of the second suspension arm is rotatably mounted on the rotary column and is driven by the driving piece to rotate; the hoisting assembly comprises a first hoisting rope, a second hoisting rope and a rope winding structure for winding or unwinding the first hoisting rope and the second hoisting rope, the free end of the first hoisting rope penetrates out of the end, away from the rotary column, of the first hoisting arm, and the free end of the second hoisting rope penetrates out of the end, away from the rotary column, of the second hoisting arm. According to the scheme, automatic lifting of the retort cover and the air passing pipe can be achieved, the labor intensity of workers is reduced, the opening and closing efficiency of the retort cover is improved, overall horizontal transferring of the retort cover and the air passing pipe can be achieved through the rotating mechanism, fine adjustment of the air passing pipe can be achieved through the driving piece, and interference between the air passing pipe and other structures during retort cover transferring is avoided.

The utility model discloses a constructional engineering protective net with a dustproof function, and relates to the technical field of constructional engineering protective nets, the constructional engineering protective net with the dustproof function comprises a portal frame, and the main body of the portal frame is of a U-shaped structure with a one-way opening at the bottom end. When the dustproof net is folded for use, a motor mounted on the outer side of the portal frame can be started to rotationally drive a screw rod, and folding operation of the current dustproof net is realized through transmission connection between the screw rod and a movable seat, so that when the dustproof net is used, the opening and closing efficiency can be remarkably improved; by arranging the water tank and the spray pipe, when the dust suppression device is used, liquid can be supplied to the interior of the spray pipe through the water tank, and when water enters the spray pipe, water flow can be synchronously pressurized and sprayed out to achieve rapid atomization dust suppression operation.

The utility model discloses a card receiving mechanism of a card receiving machine and the card receiving machine, comprising a pocket turning part, one side of the bottom end of the pocket turning part is hinged with an opening of a pocket turning accommodating part, and the card receiving mechanism also comprises an opening and closing driving assembly, the opening and closing driving assembly is used for driving the pocket turning part to swing around an opening of the pocket turning accommodating part, the inner bottom surface of the pocket turning part is used for placing a to-be-recognized card, a card recognition device is arranged in the pocket turning accommodating part, the two mounting plates are arranged on the outer walls of the ends, close to the pocket turning side plates, of the two accommodating side plates correspondingly, and the two mounting plates are arranged on the outer walls of the ends, close to the pocket turning side plates, of the two accommodating side plates correspondingly. The mounting plate is vertically arranged, mounting holes are formed in the surface of the mounting plate at intervals, the mounting holes are used for detachably mounting the pocket turning containing part on the payment self-service equipment, the mounting efficiency of the card collecting mechanism is improved through the mounting plate and the mounting hole structure, and the pocket turning part enters the pocket turning containing part for storage and is placed out of the pocket turning containing part for card placement; the cleaning difficulty of equipment is reduced, the structure is simple, and the manufacturing cost and the failure rate of the equipment are reduced.

This utility model relates to the field of junction box locking technology, and discloses a quick locking device for the junction box of an explosion-proof three-phase asynchronous motor. It includes a junction box assembly, a locking structure, and a heat dissipation structure. The locking structure and heat dissipation structure are respectively installed on the junction box assembly. The locking structure includes a fixing block and a limiting groove. A rotating shaft is rotatably mounted on the top of the fixing block, and a connecting plate is fixedly mounted on the top of the rotating shaft. A screw is threaded onto the end of the connecting plate away from the rotating shaft. A limiting block is rotatably mounted on the bottom of the screw, and a turntable is fixedly mounted on the top of the screw. The limiting groove and the limiting block are compatible. Through the locking structure, rotating the turntable drives the screw to rotate. As the screw moves down along the connecting plate, the position of the limiting block can be controlled, allowing it to stably engage in the limiting groove, forming a tight and secure locking structure. This eliminates the need for complex tools, improving the opening and closing efficiency of the junction box and sealing cover, and is suitable for scenarios requiring frequent maintenance of the internal wiring of the junction box.