29results about How to "Close flexible" patented technology

The utility model relates to the technical field of sorting machinery, in particular to a sorting table for capsule detection, which comprises a connecting frame, a feeding hopper used for containing capsules is fixedly mounted on the upper portion of the connecting frame, a feeding pipe is fixedly mounted on the lower portion of the connecting frame, the upper end of the feeding pipe is fixedly inserted into the bottom of the feeding hopper, and an intermittent baffle piece is arranged at the upper end of the feeding pipe. An overturning detection piece is arranged below the feeding pipe, a first collecting hopper, a second collecting hopper and a third collecting hopper are sequentially arranged below the overturning detection piece from left to right, the bottoms of the first collecting hopper, the second collecting hopper and the third collecting hopper are fixedly connected to the top of a sliding block, and a bottom platform is arranged below the sliding block in the horizontal direction; the top of the bottom platform is fixedly connected with a sliding rail set in the length direction, the bottom of the sliding block is movably connected with the top of the sliding rail set in a matched mode, and a driving piece is arranged on the side wall of the sliding block. The capsule sorting device has the advantages that the weight of capsules can be detected in order, so that the capsules are accurately distinguished, accurate sorting is achieved, and the sorting effect is improved.

The invention discloses a balance control method and system for amplitude and flow of a regulating valve for a chemical plant. The invention relates to the technical field of regulating valves. Calculating an error E between the target value O and the feedback value F: E = O-F; then, each PID controller i calculates an initial electric signal ei (t); each PID controller activates a bidirectional Seq-Bi-GRU recurrent neural network, executes a regression task based on the data set D of historical errors and the error E as input, and outputs an error threshold T1 for each PID controller, which is used for judging whether to activate the integral action of the PID controller or not; by introducing the bidirectional Seq-Bi-GRU recurrent neural network, the error threshold T1 and the saturation threshold T2 can be dynamically calculated based on the historical error data set and the current error. According to the dynamic adjusting mechanism, the integral action of the PID controller can be flexibly activated or closed according to the actual situation, and the integral saturation phenomenon of the multi-branch flow conveying system is effectively avoided.

This utility model relates to the field of water treatment technology, and in particular to an intelligent control dosing device, including a mixing tank. The inner wall of the mixing tank is equipped with dosing components, and a mounting plate is installed on one side wall of the mixing tank. This utility model controls the lifting stroke of a metering cylinder via an electric actuator. When the metering cylinder descends below the water level, it draws the chemical solution by gravity. After rising to a specific position, the chemical solution is again discharged under gravity through a corresponding cylindrical groove, a circular hole, and an outlet pipe, achieving quantitative dosing. Three sets of dosing components are arranged side-by-side on the crossbeam. According to actual needs, all three sets can be selected for simultaneous dosing, significantly improving work efficiency and meeting the needs of large-scale production scenarios. Alternatively, designated valves can be flexibly closed, allowing for individual dosing through designated outlet pipes, enhancing the device's versatility and practicality. The inlet pipe and dosing pipe independently transport water and chemicals. Combined with a bottom motor-driven stirring shaft, this ensures thorough mixing of the chemical solution within the mixing tank, effectively avoiding localized uneven concentrations.

The invention discloses a control valve and a packer, and belongs to the technical field of oilfield development, the control valve comprises a pipeline assembly and a control assembly, a moving channel is formed in the pipeline assembly, and a closing position and an opening position are arranged in the axial direction of the moving channel; the control assembly comprises a sliding sleeve and an elastic piece, the sliding sleeve is in sliding connection with the moving channel, the elastic piece is arranged between the sliding sleeve and the opening position, and when external pressure is larger than internal pressure of the moving channel, the sliding sleeve moves to the opening position in the axial direction of the moving channel under the action of pressure and compresses the elastic piece, so that the control valve is opened; when the external pressure is smaller than the internal pressure of the moving channel, the elastic piece recovers deformation and drives the sliding sleeve to move to the closing position in the axial direction of the moving channel, and therefore the control valve is closed. The packer is provided with the control valve. Through the synergistic effect of the sliding sleeve and the elastic piece, the control valve can be opened and closed repeatedly, the operation efficiency is improved, and the use cost is reduced.

The invention discloses a novel tong head for a drilling platform and a using method of the novel tong head, and relates to the technical field of drilling equipment, in particular to the novel tong head for the drilling platform and the using method of the novel tong head for the drilling platform. A left gate and a right gate are arranged at an opening of the main bushing and are rotatably arranged on the tong head box body through a pin shaft, one end of the first telescopic device is rotatably arranged on the tong head box body, and the other end of the first telescopic device is arranged as a telescopic end, is arranged at the end parts of the left gate and the right gate and is used for pushing the left gate and the right gate to rotate around the pin shaft; the large door opening and closing device has the advantages that the wrapping performance of the tong head is enhanced, shaking during screwing-on is reduced, the stability and safety of operation are improved, the maintenance efficiency is improved, the automation degree is improved, and the requirement for manual operation is lowered.

The invention discloses an external damage prevention hard insulation protective cover for a 35kV cross arm insulator cross arm, which comprises an insulator installation metal head shielding cover and a baffle plate assembly, and is characterized in that the insulator installation metal head shielding cover comprises an n-shaped cross arm shield, an n-shaped metal head shielding cover, a metal head fixing screw rod shielding cover and an n-shaped insulator umbrella skirt shielding cover; the baffle assembly is erected on the top of the insulator installation metal head shielding cover. According to the invention, insulation protection can be carried out on the exposed metal part of the iron cross arm at the installation position of the cross insulator, and a snake climbing and crossing prevention structure and a bird nest building prevention structure are added.

The utility model discloses an adjustable agricultural product freezer, including the body of a library, the body of a library sets up the upside of base, the inside of body of a library is equipped with the baffle, the baffle will body of a library divide into three cabins, and is equipped with corresponding sensor in each cabin, the cabin of middle is connected with refrigeration equipment, and is equipped with the sealed door in the front side of each cabin, and is equipped with handle in the front side of sealed door, the utility model can close the air -conditioning supply of idle sub cabin, avoid the waste of cold quantity, reduce operation energy consumption greatly, fan forced circulation air -conditioning, shorten the time of reaching the set temperature of two sides sub cabin, improve the efficiency, the compound damping mechanism effectively insulates the external vibration (such as removal, uneven ground, nearby equipment operation), protect the body of a library structure, reduce the damage of inside article because of vibration (especially to the tender agricultural product), prolong the life of equipment.

This application discloses a display method, display device, and storage medium. The display method is applied to a display device, which includes a display panel, a 2D backlight, and a 3D backlight. The 2D backlight includes multiple backlight areas. The display method includes: if 2D signals and 3D signals are received, determining a first area for displaying the 2D signals and a second area for displaying the 3D signals within the display panel; controlling the 3D backlight to turn on, controlling at least one backlight area corresponding to the first area in the 2D backlight to turn on, and controlling all backlight areas corresponding to the second area to turn off; controlling the first area to display the 2D signals, and controlling the second area to display the 3D signals. This application embodiment can simultaneously display 3D signals and 2D signals on the same display screen.

The invention relates to the technical field of metal armored switch cabinets, in particular to a switch cabinet door lock correction tool and method. The correction tool comprises a positioning tool and a limiting tool; the positioning tool comprises a positioning piece and a positioning rod, positioning grooves are formed in the two ends of the positioning piece, the positioning grooves are connected to the door plate in a clamped mode and installed in a sliding mode, the positioning rod is arranged on the side face of the positioning piece, and the positioning rod is inserted into the through hole of the lock catch; the limiting tool comprises a limiting piece and rotation stopping plates, the limiting piece is provided with an installation part, the installation part is connected to the side face of the side plate in a clamped mode, a groove is formed in the side face of the installation part, the rotation stopping plates are symmetrically installed on the two sides of the groove, and a limiting cavity of the spring bolt is formed between the rotation stopping plates. According to the invention, the installation and correction process of the door lock is simplified, and the installation precision and use convenience of the switch cabinet door lock are improved.

The utility model relates to a raw material mixing device for modified ABS (Acrylonitrile Butadiene Styrene), which comprises: a shell assembly, the shell assembly comprises a barrel, a stirring cavity and a discharge groove, the stirring cavity is formed in the barrel, and the discharge groove is formed in the inner bottom wall of the stirring cavity; the stirring assembly comprises a stirring rod, a rotating cylinder and a stirring piece, the rotating cylinder extends into the stirring cavity from the top end of the cylinder body, the stirring rod is rotationally connected to the inner side of the rotating cylinder and extends into the stirring cavity, the stirring piece is arranged at the bottom of the stirring rod, and a plurality of stirring plates are arranged on the stirring piece. The stirring rod drives the scraping plate to rotate, so that materials sinking to the bottom of the stirring cavity are scraped, and in the continuous rotating process, more materials are discharged through the discharging groove, so that the materials are more fully discharged out of the stirring cavity.

The invention discloses a universal test system for radio frequency industry, relates to the field of radio frequency test technology, a data board includes a system power supply and a plurality of preset peripheral interfaces; a core board includes a main chip, an interface circuit connected between the core board and the data board, a main chip peripheral circuit, a power configuration circuit and a power early warning circuit; a test board includes an ADC input circuit, a DAC output circuit, and an interface circuit connected between the test board and the core board; a three-layer structure design is adopted, which is sequentially a test board, a core board and a data board from top to bottom, the test board is connected to the core board through a first connecting component, the core board is connected to the data board through a second connecting component, and the test board is connected to the data board through a third connecting component. The test system of the present invention not only reduces the layout area occupied by the entire test system, but also facilitates the unified power management of the test system, and also solves the problem that the test cannot be completed or the test fails due to power anomaly.

This utility model provides a hand-held landing net with a closable opening, relating to the field of landing net technology. The hand-held landing net includes: a handle assembly, a frame assembly joined to the handle assembly, a control assembly joined to the frame assembly, a first net body, and a second net body. The frame assembly is constructed as a frame structure. The first net body is joined to the frame assembly to form a net bag with the frame assembly as an opening. The control assembly includes a slidable slider joined to the frame assembly, and a first control member and a second control member for driving the slider to slide. The second net body is joined between the slider and the frame assembly, and one end is movable with the slider. The second control member is configured to drive the slider to move away from the second net body to close the opening through the second net body. The first control member is configured to drive the slider to move towards the second net body to open the opening. This solves the limitations of existing landing nets in catching prey.

The utility model discloses a trolley for longitudinal seam welding protection, which comprises a movable trolley bottom plate and a protective cover, a fixed column is arranged at the upper end of the movable trolley bottom plate, a movable column is arranged at the top of the fixed column, a fixed bolt is mounted on the outer wall of the fixed column, a fixed disc B is mounted at the top of the movable column, and a fixed disc A is arranged at the upper end of the fixed disc B; a connecting column is installed at the top of the fixing disc A, a protective cover is installed at the top of the connecting column, a threaded bolt is arranged between the protective cover and the connecting column, a supporting spring is installed in the fixing column, a screw is installed between the fixing disc A and the fixing disc B, a rotating plate is connected to the bottom of the moving trolley bottom plate, and a fixing shell is connected to the lower portion of the rotating plate. Different protective covers can be replaced according to different materials, different heights and different sizes, the trolley is connected with the protective covers, protection is achieved without manual lifting, and labor intensity is greatly reduced.

The utility model relates to a connecting device, in particular to a building water supply and drainage pipeline connecting device which comprises a connecting pipe, a pipeline head, a fixing plate, a baffle, a first guide rod, a first spring and the like. A pipeline head is arranged at one end of the connecting pipe, a connecting mechanism is arranged on the connecting pipe, the connecting pipe is connected with a clamping plate through the connecting mechanism, a fixing plate is fixedly connected to the connecting pipe, the clamping plate is matched with the fixing plate in an inserted mode, a plurality of first guide rods are fixedly connected to the connecting pipe, and baffles are connected to the first guide rods in a sliding mode. By means of the design of the baffles, a closed ring can be defined, the baffles abut against the pipeline head tightly, a gap between the pipeline head and a connecting pipe is effectively blocked, in addition, the sealing performance of the device is further enhanced through the sealing blocks made of rubber, and it is guaranteed that water flow cannot leak when passing through the connecting pipe.

The invention relates to the technical field of fire fighting equipment, in particular to a safety strengthening type partition valve box for an offshore booster station. Comprising a box; a pipeline and an electric control box are arranged in the box body; a manual ball valve, a maintenance ball valve, a pressure gauge and an electric ball valve are sequentially arranged on the pipeline; the manual ball valve, the maintenance ball valve, the pressure gauge and the electric ball valve are all communicated with the pipeline; the electric ball valve, the manual ball valve and the maintenance ball valve are all connected with the electric control box; a mechanical emergency operation device communicated with the pipeline is arranged on the pipeline; the pressure gauge is connected with the electric control box through a pressure switch; a water drain valve is arranged on the pipeline; one end of the water drain valve is communicated with the pipeline, and the other end extends out of the box body; the manual ball valve, the maintenance ball valve and the electric ball valve are all connected with the test device; the fault rate of the system can be reduced, the overall safety and reliability of the system are improved, and stable operation of the offshore booster station pipeline system and safety of personnel and equipment are ensured.

The present invention relates to the technical field of natural gas compression equipment, and specifically discloses compression equipment for a long-distance natural gas compression station; it includes a plurality of gas compression components for compressing natural gas, the exhaust end of the gas compression component is connected to the intake end of the transmission pipeline, the intake end of the gas compression component is connected to a power component for driving its operation, the power component includes a drive shaft connected to the input end of the gas compression component, the drive shaft is rotatably arranged on a mounting frame, and two clutch transmission discs are symmetrically rotatably arranged on both sides of the mounting frame. The present invention uses electricity through a gas turbine as a driving source as power, and cooperates with the power switching of a clutch transmission mechanism, introduces clutch and other technologies, and can realize flexible control of the compressor unit. Through the control of the clutch, the gas compression component can be flexibly selected to be turned on or off according to the real-time pipeline load demand to achieve the best energy utilization efficiency.

The utility model belongs to the technical field of support plate adsorption equipment, and particularly relates to a support plate vacuum adsorption platform which comprises a vacuum sealing plate, a sealing rubber ring and a vacuum adsorption table. The vacuum sealing plate comprises a sealing plate body, a first air suction area, a division bar and a second air suction area. The vacuum adsorption table comprises an adsorption table body, a first main air suction hole and a second main air suction hole. The first main air suction hole and the first air suction area form a first independent adsorption channel. And the second main air suction hole and the second air suction area form a second independent adsorption channel. According to the carrier plate vacuum adsorption platform provided by the invention, the adsorption force can uniformly act on the carrier plate through the first air suction holes, the second air suction holes and the upper air suction holes in the division bars; the first independent adsorption channel and the second independent adsorption channel can realize independent adsorption control on different areas; according to the size and the shape of the carrier plate, part of the adsorption channels can be flexibly selected to be opened or closed, and the applicability and the flexibility of the adsorption platform are improved.

The invention relates to the technical field of circuit boards, in particular to a circuit board etching and tin stripping device which comprises a treatment pond, pier heads, a cross beam, vertical beams, sliding rails and a cross frame, the two vertical beams are arranged on the upper surfaces of the two side ends of the treatment pond respectively, the pier heads are installed at the top ends of the vertical beams, the cross beam is located between the two pier heads, and the sliding rails are arranged on the side surfaces of the vertical beams. The transverse frame is installed at the lower end of the beam. The area, not covered with copper foil, of the circuit board is wrapped and protected through the protective clamp, the copper foil area is completely exposed in the reaction liquid, and the transverse frame controls the soaking depth and time of the circuit board in the reaction liquid through sliding control of the sliding rail; the treatment tank is divided into an upper area and a lower area through the separation filter part, precipitated reactants are intercepted in the lower area of the separation filter part, reaction liquid is supplemented again in the upper area for mixing, and the stability of the quality and the concentration of the reaction liquid is ensured.

The utility model relates to the technical field of automobile wire harness processing, in particular to a batch head pulling tool for automobile wire harnesses. The tool comprises a box body, a clamping head device, a clamping structure and a support, the clamping head device is arranged at one end of the box body, and the support is arranged at the other end, opposite to the clamping head device, of the box body; the clamping structure is movably arranged on the support and used for clamping different numbers of wire harnesses and can drive the wire harnesses to move away from or close to the chuck device. According to the utility model, the production efficiency is obviously improved, the labor intensity of operators is reduced, the quality and the consistency of wire harness head pulling are ensured, and the batch labor-saving operation is really realized.

The utility model provides an automatic wind blocking and ore drawing device for mine blanking, and belongs to the technical field of miner mechanical equipment. The utility model discloses an automatic wind-blocking ore drawing device for mine blanking. The automatic wind-blocking ore drawing device comprises a hopper, a baffle component and a limiting beam, the baffle component comprises a windshield door plate, a hinge assembly, a balance rod piece and a balancing weight. The air blocking door plate is mounted on the hopper through a hinge assembly; the windshield door plate is positioned at the bottom of a discharge hole of the hopper; the balance rod piece is fixedly connected to the outer side of the windshield door plate; the balancing weight is fixed on the outer side of the balancing rod piece; and the limiting beam is positioned below the windshield door plate. The automatic wind blocking and ore drawing device for mine blanking is used for automatic wind blocking and ore drawing operation of a mine ore leakage hole and a material leakage hopper, the wind blocking device is opened and closed in real time, power consumption is avoided, manual guarding is not needed, wind current short circuit and air leakage faults are avoided, the stability of a mine ventilation system is improved, the opening state of a wind blocking door is remotely sensed, and mine ventilation management automation is improved.

This invention relates to the field of conveyor technology and discloses a belt conveyor belt storage bin alignment device, including a mobile trolley. A first mobile support roller is mounted on the mobile trolley, and a first rotating shaft is fixedly connected to the inner surface of the first mobile support roller. A cleaning component is fixedly connected to one end of the first rotating shaft. The cleaning component is used for wind-powered cleaning of photoelectric sensors. The cleaning component includes a first gear, and a second gear is meshed with the side surface of the first gear. This invention allows for convenient cleaning of dust from the probe surface of the photoelectric sensor without manual operation. It also allows for easy opening and closing of the fan. Furthermore, while the adjusting component controls the fan to stop rotating, it simultaneously drives a protective baffle to move to one side of the fan for shielding, thereby preventing small particles scattered on the conveyor belt from directly impacting or entering the fan when the fan is not in use, thus protecting the fan.

This utility model relates to the field of check valve technology, specifically disclosing a double-plate fireproof check valve with good sealing effect. It includes a valve body, a flue clamp on the side of the valve body, an air inlet channel on the outward side of the valve body, an air inlet at the outward end of the air inlet channel, a partition plate in the middle of the air inlet dividing the air inlet into two parts, and two valve plates rotatably mounted on the inward side of the partition plate to seal the two parts of the air inlet respectively. A spring-loaded device is also provided on the inward side of the partition plate, with its two ends contacting the inward sides of the two valve plates respectively. A crossbeam is also provided at the air inlet, located on the outward side of the partition plate, with magnets on the inward side of the crossbeam corresponding to the two valve plates for adsorbing the valve plates. This utility model's double-plate structure, combined with the rubber sleeves on the valve plate edges, effectively seals the air inlet, reducing gas leakage. Simultaneously, the magnets on the crossbeam adsorb the valve plates, further enhancing the sealing performance.

The present invention provides a switch assembly for a door body and a refrigerator. The switch assembly includes: a rotating shaft body; a door body rotating shaft, a first end of which is used to be fixedly connected to the door body, a second end of which is rotatably connected to the rotating shaft body, and a portion of the door body rotating shaft close to the second end has a first shaft buckle extending in a radial direction; a first gear rotatably connected to the rotating shaft body, a second shaft buckle is fixed on a surface of the first gear facing the door body rotating shaft, and can be abutted against the first shaft buckle when the second shaft buckle rotates to the position where the first shaft buckle is located; and a second gear meshing with the first gear, driven to rotate by a driving component, thereby driving the first gear to rotate in the door opening direction, and when the second shaft buckle rotates to the position where the first shaft buckle is located, driving the first shaft buckle to rotate in the door opening direction, and then driving the door body to rotate to open the door body, thereby realizing automatic opening of the door body, reducing user operations, and facilitating user use.

The invention discloses a distributed simulation test method for multiple unmanned systems, and belongs to the field of unmanned systems. The method comprises the steps that a simulation engine server distributes k rendering tasks of the unmanned system to m simulation engine clients; the n access ends acquire simulation data of the corresponding unmanned system from the simulation engine server; the n access ends obtain simulation images of the corresponding unmanned system from the m simulation engine clients; the n access ends respectively calculate the control quantity of the corresponding unmanned system based on the simulation data and / or simulation images of the corresponding unmanned system, and send the control signaling of the corresponding unmanned system to the simulation engine server; and the simulation engine server side controls the simulation nodes corresponding to the k unmanned systems to execute corresponding control signaling, generates simulation data through the simulation engine server side, and generates simulation images through the m simulation engine client sides. According to the method, decoupling of simulation calculation and simulation rendering is realized, and the resource processing pressure of a simulation engine is shared.

The utility model discloses a double sealing surface gate valve relates to valve body technical field, the utility model discloses a pipe body and front mounting panel, one end of pipe body is with the lateral surface fixed connection of front mounting panel, the one end fixed connection of pipe body is away from the rear mounting panel of front mounting panel, and the circumference of pipe body is provided with adjusting device. The utility model discloses the mutual cooperation between the cylinder, cylinder cover and connecting column etc. components in adjusting device, has realized the flexible opening and closing of gate valve, and through the setting of buffer spring and buffer pad, effectively reduced the impact intensity of sealing gate in the opening and closing process, prolonged the service life of gate valve. In addition, the side section of sealing gate is set to semicircle, not only improves the sealing performance of gate valve, but also ensures that the fluid does not leak when the gate valve is closed, further enhances the applicability of the gate valve. Solve the problem of high -efficient sealing and buffer protection of double sealing surface gate valve in the related art.

The utility model relates to a rain-proof shutter structure, which comprises a frame, a shutter and a lockset, the frame is fixed on a main body structure, the frame is provided with a hole at a position corresponding to an outdoor machine position of an outer wall air conditioner, the shutter is arranged in the hole, the upper part of the shutter is hinged in the frame, and the shutter rotates by taking the hinged position as a rotation center. Opening or closing an outer wall air conditioner outdoor unit position; a lock system is designed, when the louver blades are closed, the lock pins are inserted into the lock holes, it is ensured that the louver blades cannot be easily opened due to external force in the closed state, the safe locking function is provided, and the protection performance is enhanced.

The application discloses a railway station opening and closing method, and the station closing method comprises the following steps: sending inquiry information to two adjacent stations respectively by a station to be closed, and confirming whether the station to be closed is allowed to be closed; after obtaining the permission reply, the station to be closed drives all main line switches to the position of opening the main line, and sends a station closing command; after checking that the station closing condition is met, an interlocking system executes the closing command of the station; and the station to be closed sends station closing information to the two adjacent stations, so that the two adjacent stations cut off the blocking relationship with the station to be closed respectively, and a cross-station blocking relationship is established between the two adjacent stations. After the station is closed, the blocking is established between the left and right two adjacent stations, and only one blocking procedure is needed, so that the train can run between two stations, the two procedures of the original inter-station blocking are reduced to one, meanwhile, the interval between stations is lengthened, the running speed is improved, and the operation efficiency is improved.

The present application belongs to the technical field of textile equipment, and particularly relates to a cloth dustproof compression box, which comprises a box body provided with a front sidewall, a rear sidewall, a left sidewall, a right sidewall and a bottom wall, the rear sidewall of the box body is provided with a partition plate, the front sidewall of the box body is provided with a front-opening door, and the top of the box body is provided with an upper cover; the box body is internally provided with a lifting mechanism, a connecting rod mechanism and a cover opening mechanism; the lifting mechanism comprises a motor, the output shaft at the top of the motor is connected with a screw rod, and a push-pull rod is sleeved on the screw rod; the connecting rod mechanism comprises a sliding plate, the sliding plate is hingedly connected with a first connecting rod, the other end of the first connecting rod is hingedly connected with a second connecting rod, the other end of the second connecting rod is hingedly connected with a pressing rod, the middle of the pressing rod is hingedly connected with one end of a fixed rod, and the fixed rod is fixedly connected with the sliding plate; the cover opening mechanism comprises a supporting plate, the supporting plate is connected with a push plate, the top surface of the sliding plate is provided with a jacking rod, and the top of the jacking rod is provided with a pulley. The present application is provided with the connecting rod mechanism, the lifting mechanism and the cover opening mechanism, so that the compression operation is convenient, the cloth compression effect is good, and the practicability is high.

The utility model provides an electric shock prevention structure of a power supply module, relates to the power supply module protection equipment field, and comprises a protection shell, the protection shell comprises a top cover, a bottom plate and a flip cover, one end of the top cover is provided with a groove, the bottom plate is arranged at the bottom of the top cover, the top of the bottom plate is fixedly connected with a power supply module body and a wiring terminal, and the flip cover is fixedly connected with the power supply module body. The wiring terminal is located at one end of the top of the bottom plate, and the input end of the wiring terminal is connected with the output end of the power supply module body; according to the utility model, the top cover, the bottom plate and the flip cover form the protective shell, the flip cover and the groove can provide protection for the wiring terminal, and the top cover and the bottom plate can provide protection for the power supply module body, so that people can be prevented from directly contacting the electrified wiring terminal and the power supply module body, the electric shock risk is effectively reduced, and the safety of a user is guaranteed; and the flip cover is movably connected with the inner wall of the groove through the damping rotating shaft and can be flexibly opened and closed during use, so that wiring operation is facilitated, and timely protection can be realized when the device is not used.