33results about How to "Avoid long-term exposure" patented technology

The utility model discloses a rapid temperature measuring thermocouple, which belongs to the technical field of thermocouples and comprises a thermocouple body, and the bottom of the thermocouple body is fixedly connected with an insulating tube. The protective tube is connected to the outer surface of the insulating tube in a sleeving mode, and a threaded protrusion is integrally formed on the top of the protective tube; the thermocouple further comprises a protective top cover used for protecting the top of the thermocouple body, and the bottom of the protective top cover is provided with a threaded installation hole used in cooperation with the threaded protrusion. By arranging the protective tube and the protective top cover, the thermocouple is simple in structure, convenient and practical, the thermocouple body can be well protected, the thermocouple body is prevented from being exposed in a high-temperature and high-humidity environment for a long time, meanwhile, the thermocouple body is prevented from being in direct contact with a corrosive object, aging of the thermocouple body is delayed, and the service life of the thermocouple body is prolonged. Meanwhile, the influence of the environment on the thermocouple body is reduced, thereby prolonging the service life of the thermocouple body and reducing the use cost.

The utility model discloses a water conservancy project enclosure device, which belongs to the technical field of water conservancy projects and comprises a base, an enclosure plate is fixedly connected to the top end of the base, and an enclosure frame is fixedly connected to the outer end of the enclosure plate. Water flow passes through holes in the steel mesh and continues to flow to the surrounding baffle, the surrounding baffle blocks the water flow and protects the water conservancy slope, after the water flow passes through the steel mesh, a worm gear starts to rotate, a brush plate is driven by a connecting rod to rotate together, the surface of the steel mesh is brushed and swept, and the situation that the steel mesh is blocked after being used for a long time is avoided; and the retaining door can be driven to automatically turn back to the original position through restoring elastic force generated by the torsion spring to cover the steel mesh, the steel mesh is prevented from being exposed to the outside for a long time, the protection effect on the steel mesh is further improved, and the service life of the steel mesh is prolonged.

The invention discloses a flue gas particulate matter detection device, and relates to the technical field of flue gas particulate matter detection, the flue gas particulate matter detection device comprises a flue, one side of the flue is fixedly connected with a connecting seat, the connecting seat is internally provided with a C-shaped groove, the C-shaped groove is communicated with the flue, and the flue gas particulate matter detection device also comprises a shielding mechanism and a mounting mechanism. According to the invention, sampling, sample preparation and transfer processes are not needed, detection operation can be directly carried out by changing the flow direction of flue gas, and use is more convenient; by arranging a shielding mechanism, a baffle can rotate to be in a horizontal state, an inner cavity of the flue is shielded, meanwhile, the flue passes through a C-shaped groove, a particulate matter concentration detector is used for detecting flue gas particulate matter, and after detection is completed, a rotating block is rotated to drive the baffle to rotate to shield the C-shaped groove; when the C-shaped groove is closed, the transverse plate moves, the vent groove is in contact with the vertical groove, and the flue gas in the C-shaped groove is discharged through the vent groove, so that the situation that the service life of the particulate matter concentration detector is short due to the fact that the particulate matter concentration detector is exposed in the flue gas for a long time can be prevented.

The utility model relates to charging pile technical field, concretely relates to a floor type direct current charging pile, including charging pile body, the bottom surface fixedly connected with installation bottom plate of charging pile body, the upper side of charging pile body is fixedly connected with the electric gun suspension shell both sides, two electric gun suspension shell's apart one side all is provided with charging gun, the lower end fixedly connected with wire body of charging gun, the both sides below of charging pile body all are provided with the wire cleaning assembly, the front side middle part of charging pile body all is installed with three plug -in board, the inside below of charging pile body is provided with the empty groove. In the utility model, through being equipped with winding assembly in charging pile body, can place wire body in the inside of charging pile body by winding, can better avoid the wire body of plug -in board and charging gun one long -term exposure outside, reduce the damaged area, through being equipped with wire cleaning assembly, clean the surface of long -term frequent use wire, thereby better improve the service life of wire body.

The utility model provides a vehicle shading device which comprises a connecting block, a light source and a light source. The rotating assembly penetrates through the through hole to be arranged on the connecting block, and the rotating assembly can rotate relative to the connecting block; and the shading assembly is installed on the rotating assembly, and the shading assembly has a first state and a second state. The connecting block is placed on a vehicle center console or a co-driver center console, the shading assembly is unfolded to shield the arms of a driver or a co-driver, the situation that the arms are irradiated by ultraviolet light for a long time during driving is avoided, the rotating assembly rotates relative to the connecting block, the angle of the shading assembly is adjusted, and the shading effect is improved. Adjustment can be conveniently conducted according to the requirements of a driver and the sunlight irradiation position at different time, it is guaranteed that driving of the driver on a vehicle is not affected in the using process, and the driver does not need to wear the sleevelet for a long time in the driving process.

The utility model discloses a flotation machine water wheel cover plate bolt wear-resisting sleeve which comprises a base sleeve arranged on the outer side of a bolt in a sleeving mode and fixed to a water wheel cover plate, a groove is formed in the side wall of the base sleeve along the circumference, a plurality of notches are formed in the top of the base sleeve along the circumference at equal intervals, and the notches are communicated with the groove. A protective sleeve with the top closed is inserted into the base sleeve, bosses matched with the notches in number and size are fixed to the bottom of the protective sleeve at equal intervals along the circumference, and the bosses movably penetrate through the notches, rotate and then are arranged in the grooves. A base plate is vertically slidably arranged in the protective sleeve, a screw in threaded connection with the top of the protective sleeve is fixed to the top of the base plate, a handle is fixed to the top of the screw, and a rubber block extruded with the bolt is fixed to the bottom of the base plate. The bolt has the advantages that the protective sleeve and the base sleeve can prevent the bolt from being exposed in corrosive media such as ore pulp and chemicals for a long time, and the service life is prolonged; the rubber blocks extrude the bolts, and abrasion caused by bolt loosening is reduced.

The invention relates to the technical field of computer network detection, and in particular to a computer chip adjustment interface and a network detector, comprising a rectangular shell; an adjustment component and a rotating component; the adjustment component is fixedly installed inside the rectangular shell, and the rotating component is fixedly installed inside the rectangular shell. The invention solves the problem that, in the interface of the existing computer network detector, after long-term use of plugging and unplugging, part of the metal pressing sheet will not be in good contact with the metal strip of the network cable port, resulting in poor contact at the interface, thereby making it impossible to detect network data and affecting the detection efficiency of the computer network detector. The invention realizes that after the interface of the computer network detector is plugged and unplugged for long-term use, the metal sheet inside the interface will not have poor contact, etc., thereby improving the detection efficiency of the computer network detector.

The utility model provides a motorcycle with a rotatable instrument. The motorcycle with the rotatable instrument comprises a frame, a power module, a driving module, a steering module, a support, a light shield pivoted to the support and a display instrument detachably locked to the light shield. The power module is used for generating power, and the driving module is used for converting the power into kinetic energy for driving the motorcycle to move. The steering module is suitable for being operated to control the running direction of the motorcycle. The display instrument and the light shield can pivot relative to the support together. The light shield is pivoted on the bracket, so that the display instrument is not limited by the appearance of the display instrument and can be used for other types of vehicles. In addition, the display instrument can be independently detached from the light shield, so that the display instrument can be simply detached and maintained.

The utility model relates to the technical field of ceramic processing, in particular to a uniform glaze slip spraying device which comprises a supporting table, an intermittent table, an intermittent assembly, a rotating assembly, a moving assembly and a glaze spraying gun. The intermittent assembly is arranged below the supporting table, the rotating assemblies are arranged on the intermittent table, the moving assembly is arranged on the side face of the intermittent table, the glaze spraying gun is arranged on the moving assembly, and a protective cover is arranged on the supporting table. According to the uniform glaze slip spraying device disclosed by the utility model, the effect of uniformly spraying glaze on a blank body is ensured through mutual matching of all structures, and meanwhile, workers are also prevented from being exposed in a glaze spraying environment for a long time, so that the body health of the workers can be prevented from being influenced.

The utility model discloses a garden engineering planting pine tree binding device, which comprises a movable base and a driving mechanism, the driving mechanism is arranged on one side of the inner bottom of the movable base, a sliding rail is arranged in the middle of the inner bottom of the movable base, and a sliding plate is arranged on the top of the sliding rail. Electric telescopic rods are arranged on the two sides of the top of the sliding plate, a supporting cover is arranged on the tops of the electric telescopic rods, a rotating shaft is fixedly connected to the middle position in the supporting cover through a bearing, a fourth gear is arranged on the rotating shaft in the supporting cover, and a supporting block is arranged at the top end of the rotating shaft on the outer side of the supporting cover; and a bundling mechanism is arranged on one side of the supporting block. By means of automatic rotation surface changing bundling, efficiency is improved, meanwhile, the bundling mechanism can be shielded during transportation and storage, the service life of the bundling mechanism can be prolonged, and transportation is convenient.

The invention provides a full-automatic microbial fluorescent bacterial colony detection system which comprises a base and a protective cover connected to the base. The inoculating needle box is fixedly mounted at the top of the base; the two turntables are arranged at the top of the base, a plurality of culture dish positions are arranged on the turntables, and the turntables rotate through a power mechanism arranged on the base; the adjusting mechanism is arranged on the other side of the top of the base; and the magnifying lens is arranged on the adjusting mechanism. A bacterial colony in a vessel is irradiated through an ultraviolet lamp to excite fluorescence, then an image is collected through cooperation of a collection camera and an amplification lens, the collection position is adjusted through cooperation of an adjusting mechanism, then an irradiation lamp is turned on for irradiation, images under visible light are collected through the collection camera again, and the two sets of images are automatically compared. And the inoculation mechanism carries out subsequent inoculation operation, so that the device realizes the effect of integrated operation of identification, capture and inoculation, and the detection accuracy and efficiency are effectively improved.

The invention relates to the technical field of charging pile auxiliary equipment, and discloses a new energy automobile charging gun take-up and pay-off device and a using method.The device comprises a mounting frame, a driving wire extruding wheel and a driven wire extruding wheel are arranged on one side of the mounting frame, the driving wire extruding wheel is driven by a gear motor, and the driven wire extruding wheel is close to the driving wire extruding wheel through an elastic structure; the induction wheel is located on the front side of the driving wire extruding wheel and installed on a potentiometer assembly sliding block which only plays a bearing role, and the installation frame is further provided with a guide wheel and a front-back guide block. The using method comprises the steps of paying-off operation, charging state judgment, take-up triggering verification and automatic take-up homing, and a manager linkage homing step can be additionally arranged. Through motor driving and double verification, automatic take-up of the charging gun is achieved, exposure is prevented, safety is guaranteed, and take-up is accurate; the induction wheel and the position sensor are matched with a collaborative algorithm, so that paying-off is labor-saving and smooth; and the method adapts to existing charging piles, parameters are adjustable, and application is wide.

This invention discloses a semiconductor chip mounting device for processing dashcams, belonging to the field of semiconductor device manufacturing technology. It includes a worktable and an adhesive application assembly. A material box is mounted on the top of the worktable, and a feeding tray is rotatably connected to the top of the worktable. A positioning groove is formed on the top of the feeding tray. A mounting assembly is mounted at one end of the top of the worktable, and the adhesive application assembly is located at one end of the mounting assembly. The adhesive application assembly includes a drive board, and a roller seat is located below the drive board. A limit seat is slidably connected to the outer side of the roller seat. This invention enables simultaneous workpiece mounting and chip adhesive application, completing workpiece bonding immediately after adhesive application. This prevents long-term exposure of adhesive to dust and impurities, effectively ensuring chip bonding cleanliness. Furthermore, the rigid limit precisely controls the adhesive application stroke, ensuring the adhesive width is smaller than the workpiece width, preventing excessive adhesive overflow when the workpiece squeezes out adhesive, thus improving chip mounting accuracy and bonding stability.

The utility model discloses a plastic gear hobbing clamp, and belongs to the technical field of hobbing clamps. In order to solve the problem that an existing product is complex in structure, according to the technical scheme, the clamp comprises a clamp body, a plurality of circular grooves are formed in the clamp body, spiral pieces are arranged at the bottoms of the circular grooves, a sealing mechanism is arranged on the clamp body, and the sealing mechanism comprises a first spring column fixedly connected to the interior of the clamp body. By arranging the sealing mechanism, a good sealing effect can be achieved on a spiral piece on the clamp, the spiral piece is prevented from being exposed for a long time and making contact with outside air, the spiral piece can be prevented from rusting to a certain degree, and workers can conveniently screw the spiral piece; lubricating oil is automatically added to the spiral piece, screwing by workers is more convenient, meanwhile, the workers do not need to manually add the lubricating oil, and time and labor are saved.

The invention discloses a composite current collector and a preparation method thereof, a positive pole piece and a secondary battery, the composite current collector comprises a current collector with a groove, at least part of the groove is filled with a catalytic material, and the composite current collector further comprises a lithium-rich material in contact with the catalytic material. The composite current collector can solve the problem of unstable cell performance caused by mixed coating of a lithium-rich material and a positive electrode material.

The utility model discloses a mounting mechanism and a valve positioner for a secondary air door, and relates to the technical field of positioners, the mounting mechanism comprises a mounting unit which comprises a support piece, a moving rod arranged on the inner side of the support piece, a pressing block arranged in the support piece, a reset piece arranged at the end part of the pressing block, and a push block arranged on one side of the moving rod, the first spring is arranged at the end part of the moving rod; the clamping unit comprises a hinge seat, a clamping rod arranged on the inner side of the hinge seat and an extrusion rod arranged on one side of the hinge seat; the hinge seat is fixed at the end part of the push block; the ends of the clamping rods make contact with the side wall of the supporting piece. The positioning device has the beneficial effects that the positioning device main body can be quickly mounted and dismounted through the mutual matching of the mounting unit and the clamping unit, so that a worker can conveniently repair and maintain the positioning device main body.

The utility model relates to a circulator with a good heat dissipation effect, which belongs to the technical field of circulators, and comprises a circulator body, a connecting port and a storage box, the connecting port and the storage box are arranged on the side wall of the circulator body, the upper surface of the circulator body is provided with a heat dissipation mechanism, and the heat dissipation mechanism comprises a heat dissipation structure and a shielding structure; the heat dissipation structure comprises a first shell, a heat dissipation fan installed in the first shell and a dustproof net installed on the upper surface of the first shell through bolts. The shielding structure comprises a second shell, a circular frame installed in the second shell, a shielding plate rotationally installed on the circular frame and a driving piece arranged in the second shell and used for driving the shielding plate. According to the circulator with the good heat dissipation effect, the heat dissipation channel can be shielded, long-term exposure of the heat dissipation position of the circulator body is avoided, foreign matter entering is reduced, the heat dissipation position is protected, the heat dissipation effect is improved, and therefore the circulator has the advantages that practicability is high, the heat dissipation position can be shielded, and protection performance is improved.

The invention relates to the technical field of electric power generation assembly photovoltaic panels, in particular to an electric power generation assembly photovoltaic panel automatic cleaning device which comprises a mounting shell, a supporting bottom plate and a photovoltaic panel main body, two supporting pieces and two mounting plates are fixedly connected to the inner wall of the mounting shell, the two supporting pieces are mounted to achieve limiting of a first gear, and the two mounting plates are fixedly connected to the inner wall of the mounting shell; a first motor drives a corresponding first gear to rotate, the synchronous and same-direction rotation effect of the two first gears is achieved by installing connection of a first toothed belt and the first gears, the first toothed belt drives a flexible belt on the bottom face to move, the flexible belt drives a brush piece installed on the bottom face to move, and the effect of sweeping the surface of a photovoltaic panel is achieved through the brush piece. According to the photovoltaic panel cleaning device, stubborn hard particles, bird droppings and the like on the surface of a photovoltaic panel can be scraped, the annular cleaning effect can be achieved through connection between a first gear and a first toothed belt, then the efficient cleaning effect on the surface of the photovoltaic panel is achieved, and the stubborn hard particles, bird droppings and the like are prevented from remaining on the surface of the photovoltaic panel.

This invention relates to the field of marine floodlight technology and discloses a marine LED floodlight, including a lamp post, a rotating rod fixed to the top of the lamp post, a connecting rod fixed to the side of the rotating rod, a rack fixed to the end of the connecting rod away from the rotating rod, a limit block fixed to the side of the rotating rod, an illumination assembly including a luminaire on the rotating rod, a protective assembly for protecting the luminaire on the top of the rotating rod, and a pushing assembly on the lamp post for moving the luminaire. The pushing assembly consists of a pushing structure and a connecting structure. This invention significantly delays the light decay of the LED luminaire through protective and sealing structures, enabling it to maintain high light transmittance and low light loss for a long time in the highly corrosive marine environment, thereby reducing the input power required to maintain illuminance and achieving energy-saving operation.

The application belongs to the technical field of flood prevention, and discloses a modular assembled flood prevention retaining wall device, which comprises a retaining wall in the shape of "L" and hollow.The application is characterized in that a pressure bearing mechanism and an air bag are arranged in cooperation, water flow impact on the pressure bearing cabin makes the rubber layer deform, the air inside the pressure bearing cabin pushes the air bag to expand outward into the sealing groove, sealing is realized, and the response speed of the air bag is improved, that is, the greater the water pressure, the greater the force with which the air inside the pressure bearing cabin pushes the air bag to expand outward, and the better the sealing effect, since the air bag is soft as a whole, it can fill the sealing groove more completely, the poor sealing effect of the round corner part of the retaining wall is avoided, the problem of structural assembly deviation or insufficient production precision is adaptively compensated, irregular gaps generated after the deformation of the retaining wall due to water pressure can be filled, the defect that the traditional sealing rubber strip cannot adjust with the change of the gap due to insufficient rigidity is compensated, and the continuous adhesion of the sealing interface is maintained.

The utility model discloses a data information processing device which comprises a switch body, a fixing frame is arranged on the upper surface of the switch body, bolts used for fixing the switch body and the fixing frame are arranged on the upper surfaces of the two sides of the fixing frame, positioning holes are formed in the upper surface of the fixing frame, a motor is arranged between the positioning holes, and the motor is connected with the switch body. A fan is arranged on an output shaft of the motor, a support is fixedly connected to the outer surface of the motor, one end of the support is fixedly connected with the upper surface of the machine body, and a protective cover is arranged above the positioning hole. According to the data information processing device, the dustproof box, the receding hole, the sliding groove, the sliding block, the folding door, the handle and the magnetic strips are arranged, a network cable is inserted into the network cable socket through the receding hole, then the folding door is pulled by pulling the handle, the magnetic strips are attracted together, the situation that the network cable socket is exposed outside for a long time, dust enters the interface, and consequently poor contact is caused is avoided, and the service life of the data information processing device is prolonged.

This utility model belongs to the field of water-stop screw technology, and particularly relates to a multifunctional water-stop screw assembly, including a water-stop screw pre-embedded part and screw parts threadedly connected to both sides of the water-stop screw pre-embedded part. Water-stop plates are provided on the outside of both sets of screw parts, and positioning seats are installed at opposite ends of both sets of water-stop plates. Adjusting nuts are threadedly connected to the outside of both sets of screw parts. By installing two sets of screw parts threadedly connected to both sides of the water-stop screw pre-embedded part, the two sets of screw parts can be rotated to adjust the extension length of the screw parts, thereby facilitating the adjustment of the overall length of the assembly. The positions of the two sets of water-stop plates can also be quickly adjusted, allowing them to move to the seepage channel, block the seepage channel, and allow the positioning rings on the outside of the two sets of water-stop plates to quickly contact the inside of the module, thus accurately positioning the water-stop plates and the water-stop screw pre-embedded part, ensuring the splicing accuracy of the template.

The present application provides a kind of biomass combustion self-adaptive fire control method and system based on vision and thermodynamics, system includes optical sensor, array thermocouple, high-energy electronic igniter, infrared flame detector, edge computing and main control module.Edge computing and main control module synchronously and independently process data from optical sensor and thermocouple, extract the area ratio of visual dark spot in ignition zone and temperature drop rate gradient, introduce image information entropy and dynamically correct visual dark spot critical threshold and temperature sharp drop critical threshold according to it, judge when "stove" risk occurs and execute fire program, realize high-precision, nonlinear adaptive smooth fire regulation and control using two-dimensional fuzzy adaptive PID controller.The present application overcomes the control lag and frequent misjudgment problem caused by single sensor in traditional fire supplement system, eliminates the thermal shock generated by on-off fire supplement to furnace flow field, improves the thermodynamic equilibrium stability and safety level in the process of biomass carbonization.

The utility model relates to the technical field of cable type liquid level meters, and discloses a cable type liquid level meter which comprises a protection piece and a measuring piece used for measuring the liquid level, a cable is fixedly connected between a stainless steel probe and a liquid level meter body, one side of the stainless steel probe is fixedly connected with an electrical interface, and the other side of the stainless steel probe is fixedly connected with a cable. The interior of the protection piece sinks inwards to form a protection cavity for containing the liquid level meter body, and the bottom of the liquid level meter body is fixedly connected to the bottom end in the protection cavity. The cable is provided with a connecting piece, the top of the connecting piece protrudes outwards and is fixedly connected with a clamping head, the bottom of the protection piece sinks inwards to form a clamping groove and an insertion hole, and the insertion hole is communicated with the clamping groove; the clamping head is supported through the connecting piece, the connecting piece is fixed above the protection piece through matching of the notches in the connecting plate, and the cable is shielded through the protection piece, so that the length of the cable is convenient to adjust when the device is used for measuring, manual binding is not needed, and the use experience of a user is improved.

The utility model relates to the technical field of billboards, and discloses a billboard convenient to mount, which comprises a mounting plate, a glass protection frame and a billboard body, a mounting groove is formed in the front side surface of the mounting plate, and first screws are in threaded connection with the left and right side walls of the mounting plate; one end of the first screw extends into the mounting groove and is rotationally connected with a clamping plate, a fixing groove is formed in the top of the front side of the mounting plate and communicates with the mounting groove, a second screw is rotationally connected to the inner wall of the bottom of the fixing groove, the outer portion of the second screw is in threaded connection with a lifting plate, and a sliding groove is formed in the lifting plate; the sliding grooves penetrate through the inner walls of the bottoms of the lifting plates, and pressing plates are slidably connected into the sliding grooves. Compared with the prior art, the billboard is convenient to mount and dismount, and the billboard is easy to replace.

This utility model relates to the field of vehicle relocation license plate technology, and more particularly to a sliding and concealable vehicle relocation license plate. It includes a strip-shaped outer shell with openings at the top and bottom. A support base is provided inside the bottom of the outer shell, and a strip-shaped receiving groove is formed on the top of the support base, with the license plate placed inside the receiving groove. Sliding grooves are formed on both sides of the top of the outer shell, and a frame is provided at one end of the top of the outer shell. A cover is provided on the top of the frame, and wheels are provided at the bottom corners of the frame. The wheels are rotatably mounted on a connecting frame, which is fixed to the frame. This utility model, through the sliding design of the frame, can partially or completely cover the license plate when the number is not needed, preventing others from arbitrarily observing or photographing the owner's phone number, effectively protecting the owner's privacy. Furthermore, during vehicle movement, the inertia of bumps will cause the frame to automatically slide and cover the number, preventing the number from being exposed for extended periods.

The utility model discloses an electric power engineering maintenance power transmission line grounding wire device, which comprises a box body, a sliding groove arranged in the box body, a storage groove arranged in the box body, a driving motor arranged in the box body, a threaded rod fixedly connected to the output end of the driving motor, a rotating sleeve fixedly connected to the bottom of the storage groove, and a connecting rod fixedly connected to the rotating sleeve. The bottom of the threaded rod rotates in the rotating sleeve; the surface of the box body is fixedly connected with the winding box, the inner bottom wall of the winding box is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with a rotating shaft; the box body, the threaded rod, the insulating rod, the servo motor and the rotating shaft provided by the utility model are matched for use, so that the appearance size of the device can be reduced, a worker can carry and take the device conveniently, the carrying pressure and the working pressure of the worker can be reduced, meanwhile, the device can roll a ground wire main body, and the working efficiency is improved. And surface damage and doping mixing are reduced, and the practicability of the device is improved.

The invention discloses a telescopic socket, and aims to provide a telescopic socket facilitating storage, which comprises a socket body, a power line electrically connected with the socket body is fixed at one end of the socket body, a storage groove is arranged at the other end of the socket body, and a socket expansion body electrically connected with the power line is arranged in the storage groove. The socket expansion body is in sliding connection with the storage groove, a guide limiting mechanism is arranged in the storage groove, the guide limiting mechanism is located on the side face of the socket expansion body, and the socket expansion body is limited in the storage groove through the guide limiting mechanism after sliding in a telescopic mode. Compared with the prior art, the socket has the advantages that under the normal condition, the socket expansion body is located in the storage groove in the non-use state, a user can take electricity through the socket body, the occupied space of the socket is small, the purpose of facilitating storage is achieved, and carrying is convenient.