20results about How to "Avoid short-circuit damage" patented technology

The invention relates to the field of police tools, and discloses a police shoulder lamp which comprises a shoulder lamp body, a buzzing sound box is installed on the left side of the shoulder lamp body, a base is arranged at the bottom of the shoulder lamp body, a shoulder strap is movably connected to the lower portion of the base, fixing assemblies are arranged on the front side and the rear side of the base correspondingly, and an anti-breaking assembly is arranged on the outer side of the shoulder lamp body. A waterproof assembly is arranged on the outer side of the buzzing sound. According to the shoulder lamp, the exterior of the shoulder lamp body is surrounded through a net-shaped structure formed between the multiple longitudinal clamping rods and the transverse clamping rods, protection is provided while the shoulder lamp body is fixed, the shoulder lamp body is prevented from directly bearing impact force, and the risk that the shoulder lamp body is damaged is reduced; and the large fragments are intercepted by a net structure formed between the longitudinal clamping rods and the transverse clamping rods, so that the situation that the face of the police officer is scratched by the large fragments due to the fact that the large fragments splash outwards is prevented.

The utility model discloses a moisture-proof and anti-corrosion power box, which comprises a box body, a box door arranged on the front side of the box body, a power panel arranged in the box body, heat dissipation net plates arranged on two sides of the box body, a triangular bracket arranged on the lower side of the box body, a flashing board arranged on the upper side of the box body, a condensation mechanism arranged on the inner wall of the box body, and a connecting plate arranged at the upper end of the box body, the outer side of the box body is covered with a galvanized metal box, and the box door is connected with the galvanized metal box. According to the utility model, the metal box is galvanized by adopting a hot-dip galvanizing method, so that the service life of the metal box is prolonged, the metal box covers the outer side of the power box body, the erosion of the outside to the power box is effectively isolated, the service life of the power box is prolonged, and in addition, the condensation structure is additionally arranged in the box body, so that the service life of the power box is prolonged. Water vapor generated in the box body is condensed into water drops, the water drops flow into the water collection tank along the condensation plate and finally flow out of the power box, short-circuit damage of moisture to elements in the power box is avoided, and the use safety of the power box is enhanced.

The invention discloses a protection circuit of a metal filing annunciator, relates to an annunciator sensor protection circuit, and aims to solve the problems of poor safety and poor reliability caused by high probability of short circuit of the conventional metal filing annunciator. A first signal terminal is connected with one end of a first resistor; the second signal terminal is connected with one end of the second resistor and the negative electrode of the metal filing annunciator body at the same time. And the third signal terminal is simultaneously connected with the other end of the second resistor, the other end of the first resistor and the positive electrode of the metal filing annunciator body. The metal filing annunciator has the beneficial effect that the safety and reliability of the metal filing annunciator are improved.

The utility model belongs to the technical field of medical instruments, and discloses a control terminal for a diffuse oxygenerator, the control terminal comprises a shell, a regulating valve, a diffuse air box and a wet mist assembly, the shell is internally provided with a mounting cavity, the regulating valve communicates with an air inlet pipeline and is located in the mounting cavity, and the diffuse air box is arranged in the mounting cavity and communicates with the regulating valve; gas entering the dispersion gas box through the adjusting valve is released to the outside of the shell through the dispersion gas box, the wet mist assembly is detachably installed on the side portion of the shell and used for outputting gas humidification and / or generating atomized liquid, and therefore a user can take down the wet mist assembly from the shell when filling liquid into the control terminal, and the user can conveniently fill the liquid into the control terminal. Therefore, the effect of conveniently filling the liquid into the control terminal is achieved, meanwhile, the situation that the cleanliness of the control terminal is affected and an internal circuit of the control terminal is damaged due to the fact that the liquid is scattered to the outside is avoided, the effect of guaranteeing the service life of the control terminal is achieved, and then the use experience of a user is improved.

The utility model relates to the technical field of industrial computer installation, and discloses a wall-mounted industrial computer which comprises a computer case, a fixing plate is installed on the rear side of the computer case, an installation hanging lug is fixedly connected to the top end of the rear side face of the computer case, and the installation hanging lug is installed on the upper side of the fixing plate in a hanging mode. The left side and the right side of the computer case are both provided with wire inserting rows, the side wall of the computer case is fixedly connected with a blocking cover through bolts, and the wire inserting rows are located in the blocking cover. According to the computer case, the fixing plate is arranged, after the installation hanging lugs are hung on the fixing plate, the positioning teeth are meshed with the fixing teeth, the extension plate and the lower ends of the installation hanging lugs are connected through the bolts, the computer case can be fixed to the front side of the fixing plate, the installation mode is simple, and operation is convenient during disassembly; and the interface faces downwards or obliquely downwards, so that various data lines can be conveniently plugged.

The utility model discloses a cable connector, which comprises a connector body, a plurality of uniformly distributed plug wire holes are arranged on two sides of the connector body, a movable groove is arranged in the connector body, an insulating frame is fixedly connected on the inner bottom wall of the movable groove, and two groups of symmetrical conductive blocks are fixedly connected on the upper end face of the insulating frame. Arc-shaped grooves are formed in the upper end faces of the conductive blocks, the wire inserting grooves correspond to the arc-shaped grooves in a one-to-one mode, space can be reserved for a cable through the corresponding arc-shaped grooves in the two sets of conductive blocks, the cable is made to make contact with the arc-shaped grooves, the cable is pressed through cooperation with the arc-shaped pressing blocks on the lower end faces of the positioning plates, and the cable is prevented from loosening and falling off. According to the invention, rapid installation and wiring of the cable can be realized, the cable is bundled, the cable is prevented from being disordered, the stability of the cable in the use process is effectively improved, the problems of line aging, electric leakage, short circuit and the like are prevented, and the use safety of the cable is improved.

The utility model relates to the technical field of flaw detection equipment, in particular to a waterproof cover of a nondestructive testing flaw detector, which comprises a device body, an instrument body, a connecting wire connected to the top end of the instrument body, a feeler lever connected to one end of the connecting wire, and a probe arranged at the bottom end of the feeler lever; the outer wall of the top end of the probe rod is sleeved with a waterproof structure which comprises a waterproof cover, and a first sealing ring is arranged on the inner surface of the waterproof cover. The waterproof cover is sleeved on the outer wall of the top end of the probe rod, then the threaded rod penetrates through the through hole formed in the positioning ring to be rotatably connected into the threaded groove formed in the waterproof shell to limit the waterproof shell, so that the positioning ring and the waterproof shell are connected, the waterproof cover and the waterproof shell are used for performing waterproof treatment on the outer wall of the probe rod, and the waterproof effect is good. The detection of the probe is not influenced, and the problem that liquid permeates into the instrument to cause short-circuit damage to the instrument is avoided.

The present invention relates to the technical field of municipal engineering, and specifically to a cable fixing device for municipal engineering, comprising a fixed base plate, a fixed rod is installed in the middle of the top of the fixed base plate, adjustment slide grooves are provided on both the front and rear sides of the fixed rod, a fixed frame head is slidably connected in the adjustment slide groove, a docking circular opening is provided in the middle of the right side of the fixed frame head, a twisting fixing mechanism, a fitting fixing mechanism and a tightening mechanism are provided inside the fixed frame head, the fitting fixing mechanism comprises a mounting ring frame, a mounting ring groove is provided in the mounting ring frame, an extrusion airbag is installed in the mounting ring groove, a buffer limit mechanism is provided on the tightening mechanism, and a loose limit mechanism is provided on one side of the tightening mechanism; when the cable is fixed, the present invention applies torque to the outside of the cable end through the twisting fixing mechanism, further increasing the friction and firmness during contact extrusion, and at the same time, the cable end is squeezed and fixed at multiple positions to improve the firmness of the cable when fixed.

A guide cylinder protruding towards the center of a machine head is integrally arranged on the inner side wall of the machine head, one end of the guide cylinder extends towards the center of the machine head, the other end of the guide cylinder penetrates through the side wall of the machine head, an installation opening is formed in the outer side wall of the machine head, an upper coupler comprises a main body and an installation portion protruding outwards from the main body, and the installation portion comprises an installation face. The mounting part extends into the guide cylinder through the mounting opening, the fastener penetrates through the guide cylinder and the mounting part to fix the mounting part on the guide cylinder, the mounting surface is in close fit with the inner surface of the guide cylinder, and the length of the guide cylinder protruding towards the interior of the machine head is at least 5 mm. The upper coupler is fixed by the fastener, and the mounting part and the guide cylinder are in close fit to realize surface-to-surface contact, so that the acting force on the mounting part is uniformly dispersed to the inner surface of the guide cylinder through the mounting surface, the guide cylinder is not easy to damage, the fixing effect of the guide cylinder on the mounting part is ensured, and the upper coupler is firmly fixed and is not easy to loosen and fall off.

The invention discloses an interactive display screen for new media display, and relates to the technical field of interactive display screens. The device comprises a frame body, the surface of the bottom of the frame body is fixedly connected with the inner side face of a shell, a cleaning assembly is arranged on the side, away from a cooling assembly, of a screen, the cleaning assembly is fixedly connected to the bottom of the inner wall of the shell, and the side, close to the shell, of the cooling assembly penetrates through the frame body and extends into the shell. The surface of the cooling assembly is fixedly connected with the inner side face of the shell, the bent screen can provide a larger visual field range and provide a better visual interaction effect, the cleaning assembly cleans the screen in real time and keeps the screen clean, and the clean screen can enhance the interaction willingness of people and enhance the display effect; the screen is kept clean, oxidation or corrosion of the screen can be avoided, the display life is prolonged, the cooling assembly cools the back of the screen, and therefore the screen is prevented from being overheated and short-circuit damage of the screen is avoided.

The utility model discloses an electrical connector bar comprising a fixed mounting plate, the end portion of the surface of the fixed mounting plate is provided with mounting through holes, the surface of the fixed mounting plate is provided with fixed connecting pieces, the inner sides of the fixed connecting pieces are provided with fastening bolts, and the surface of the fixed mounting plate is symmetrically provided with connection protection mechanisms. And a fixed magnetic block is fixedly connected between every two adjacent connection protection mechanisms, limiting magnetic blocks are fixedly connected to the two downward ends of the surface of the fixed mounting plate, and through mutual cooperation of the connection protection mechanisms and the fixed magnetic blocks, when external wires are connected, the external wires can be connected with insulating skins of the wires, so that the connection between the external wires and the insulating skins of the wires is facilitated. And meanwhile, the fixed connecting piece and the fastening bolt can be covered, so that protection can be provided, short-circuit damage is avoided, and operation is convenient.

The present invention discloses a deformable LED street lamp which relates to the technical field of LED lamps, the street lamp comprising a main body frame: comprising an outer mounting tube arranged on the main body frame, an inner supporting rod being coaxially fixedly mounted on the inner wall of the outer mounting tube, and an inner mounting tube being coaxially fixedly mounted on the inner wall of the outer mounting tube; a swing mechanism comprising two LED lamp poles mounted on the outer mounting tube, a rotating gear shaft being fixedly mounted on the surface of each LED lamp pole, and a connecting sliding shaft being coaxially fixedly mounted on the surface of the rotating gear shaft; a switching mechanism being used to drive the connecting sliding shaft to rotate and revolve; a locking gear mechanism at a working end is disengaged from the limiting effect on the rotating gear shaft, and at this time, the LED lamp pole is driven to rotate counterclockwise under the action of the switching mechanism, so that the LED lamp pole at the working end returns to the initial state of the standby end, and when the LED lamp pole at the working end rotates, the power is cut off and the work is stopped, and heat is dissipated, thereby achieving automatic switching of the LED lamp poles, ensuring the normal lighting work, and increasing the working life of the LED lamp poles by heat dissipation.

The utility model relates to the technical field of transformers, in particular to a rainproof dry-type transformer. The transformer comprises a transformer body, a placing plate is installed on the lower surface of the transformer body, a protection device is arranged on the surface of the placing plate, the protection device comprises a protection frame, the protection frame is fixedly connected with the surface of the placing plate, two sliding grooves are formed in the surface of the placing plate, and the two sliding grooves are communicated with the placing plate. A protection box is slidably connected to the inner surfaces of the two placement plate sliding grooves, the surface of the protection box is slidably connected with a protection frame, a protection door is slidably inserted into the protection frame, an operation block is fixedly connected to the surface of the protection door, L-shaped plates are fixedly connected to the two sides of the protection frame, and driving rods are inserted into the L-shaped plates in a threaded mode. And one end of the driving rod is rotationally connected with a connecting block. The problem that rainwater directly sprays on the transformer body in rainy days, water enters the transformer body, and the transformer body is damaged due to short circuit is solved.

The utility model discloses a motor with short circuit protection structure belongs to motor technical field, including motor main part, the side of motor main part rotatory connection has motor shaft, and the side surface of motor main part installs the sealing structure with the corresponding position of motor shaft, and the surface of motor shaft is equipped with a plurality of installation groove, the utility model sets up sealing structure, through the sealing rotation of sealing bearing no.

The utility model discloses a wiring device for a battery module. The wiring device comprises an insulating shell and an electrical connecting piece, the insulating shell is provided with a first positioning structure which is used for being matched with a second positioning structure of the battery module; the electrical connecting piece is fixed on the insulating shell and is used for realizing electrical connection of the battery modules in the battery module when the first positioning structure and the second positioning structure are matched with each other; a plurality of first positioning structures matched with the same battery module are arranged in the insulating shell and are distributed on the surface of the same side of the insulating shell; the first positioning structures matched with the same battery module are different, and / or the first positioning structures matched with the same battery module are asymmetrically distributed on the insulating shell. According to the wiring device, the insulating shell and the battery module enable all the battery modules of the battery module to be accurately wired through the electrical connecting pieces under the mutual matching action of the positioning structures of the insulating shell and the battery module, and wiring errors are avoided. The utility model further discloses energy storage equipment.

The utility model relates to the technical field of low-voltage inlet wire cabinets, in particular to a low-voltage inlet wire cabinet, which comprises a cabinet body, an identification label is mounted on the upper edge of the front surface of the cabinet body, a heat dissipation cavity is arranged at the bottom end in the cabinet body, and a mounting cavity and an L-shaped control cavity are sequentially separated from left to right in the cabinet body and positioned on the upper edge of the heat dissipation cavity. An induced draft fan is installed on the side, close to the L-shaped control cavity, of the top of the mounting cavity in a penetrating mode, and an exhaust fan is installed at the position, embedded into the heat dissipation cavity, of the top of the mounting cavity. The low-voltage inlet wire cabinet fire monitoring device can avoid short-circuit damage of power elements caused by dust entering, avoid overheating damage, prolong the service life of the power elements, and facilitate timely alarm of real-time detection of internal fire smoke, thereby ensuring installation, operation and use of real-time low-voltage inlet wire cabinet fire monitoring, and being high in stability and practicability and having certain popularization value.

The invention relates to a waterproof and anti-reverse-plugging TYPE-C interface assembly which comprises a socket interface and a cable connector, the socket interface is provided with a groove wrapping the socket, the outside of the groove is provided with a positioning block, the tail of a plug is provided with a stop block matched with the groove, the stop block is provided with a positioning groove matched with the positioning block, and the cable connector is arranged in the positioning groove. The stop block is sleeved with a soft gasket, and the socket interface is in threaded connection with the cable connector through a patterned screw rod. Through the structural design, an anti-reverse insertion mode is adopted, so that a common TYPE-C cable cannot be inserted into a TYPE-C interface, only a special TYPE-C cable can be used, and after the cable is tightly inserted, a silica gel pad on the cable is tightly pressed in a screw tightening and fixing mode, so that the waterproof requirement is met. The TYPE-C cable fixing device is simple and convenient to operate, the TYPE-C cable is fixed safely and firmly and is not prone to loosening and falling off, the waterproof requirement can be met, and equipment short circuit damage caused by water vapor is avoided.