373 results about "Binding post" patented technology

The invention discloses a radio frequency coaxial connector convenient to plug and unplug, and relates to the technical field of coaxial connectors, the radio frequency coaxial connector convenient to plug and unplug comprises a female head and a male head, the radio frequency coaxial connector convenient to plug and unplug further comprises a jack, the jack is formed in the inner wall of the female head, a contact pin is fixedly installed on the inner wall of the male head, and the shape of the contact pin is matched with that of the jack; the binding post is used for fixing a cable, the fixing device is fixedly installed on the side, away from the contact pin, of the male head and used for combining the male head and the female head, the fixing key is arranged on the outer wall of the female head, the clamping rod pushes the fixing key to be clamped into the limiting groove, rigid mechanical locking is formed, connector loosening caused by vibration and pulling is avoided, and after the clamping rod is reset, the fixing key is clamped into the limiting groove. And the sliding buckle rebounds under the action of the third spring to limit vertical movement of the clamping rod, so that clamping failure is prevented, and long-term stable connection is ensured.

The utility model provides a spring-free type bushing end screen, which belongs to the technical field of bushing end screens and comprises a flange seat, an insulating sealing sleeve is embedded in an inner cavity of the flange seat and is clamped in the inner cavity of the flange seat through a locking component, and a locking thread is arranged at the end part, far away from the flange seat, of a binding post along the outer wall. The inner wall of the side, away from the flange hole, of the flange base is in threaded connection with a grounding piece, the grounding piece is arranged outside the locking thread in a sleeving mode, anti-skid lines are arranged on the outer wall of the grounding piece in the circumferential direction, external threads are formed in the bottom of the outer wall of the grounding piece in the circumferential direction, internal threads are formed in the top of the inner wall of the flange base, and therefore the grounding piece is in threaded connection with the top of an inner cavity of the flange base. After the grounding piece is in threaded connection with the flange seat, the end screen is in a continuous grounding state, stable operation of the transformer is guaranteed under the condition that overall stability is guaranteed, and the protection effect is enhanced.

The invention relates to a current transformer with an open circuit protection function and a protection method thereof, and belongs to the technical field of transformers, the current transformer comprises a transformer body and a protection box arranged at the front end of the transformer body, and the protection box comprises an indication mechanism used for indicating an open circuit fault of the transformer body; the box body is fixedly connected with the mutual inductor body, and a wire outlet groove is formed in the box body and used for secondary wiring; the binding posts are arranged in the box body and are connected with the secondary coil of the mutual inductor body; the protection mechanism is arranged on one side of the binding post; and the alarm mechanism is connected with the protection mechanism and is used for sending open-circuit fault alarm information. According to the device, the binding posts are short-circuited quickly through the protection mechanism, abnormal operation of the transformer caused by open circuit is prevented, continuous operation of a system is ensured, and the reliability and stability of the current transformer are improved.

The utility model relates to the field of electric power equipment, in particular to a rapid uninterruptible meter changing device, which comprises a bottom support, a connecting seat, a binding post, an on-off structure, a button, a top pipe and a spring short-circuit group, the connecting seat is fixed on the bottom support, the connecting post is arranged in the connecting seat, and the spring short-circuit group is arranged in the connecting seat and positioned on one side of the binding post. The button is slidably arranged on the front end face of the connecting base, the elastic sliding rod is connected to the inner end of the button, the top piece and the push piece are rotatably arranged in the connecting base, the lower end of the top piece is connected with the elastic sliding rod through gear meshing, and the lower end of the push piece is in contact with the upper end of the top piece through an arc surface; the two sides of the lower end of the connecting rod are rotationally connected with the elastic sliding rod and the connecting base, the upper end of the connecting rod is rotationally connected with the ejector rod, the ejector rod is arranged in the ejector pipe in a sliding mode, the ejector pipe is arranged on the upper end face of the connecting base in a sliding mode, more labor is saved in replacement, and work efficiency is improved.

The invention provides a scroll compressor cross ring dynamic strain wireless measuring device, which relates to the technical field of compressor state monitoring and comprises a high-temperature-resistant strain gauge, a wire fixing system and a wireless sensor. Wherein the high-temperature-resistant strain gauges are respectively attached to stress sensitive areas of a static key, a ring beam and a movable key of the cross ring every time; the wire fixing system comprises a three-stage fixing structure formed by an adhesive, an internal wire, an external wire and an internal binding post; the three stages of fixing structures are a strain gauge end fixing structure, a lead transition section fixing structure and a binding post end fixing structure in sequence; the high-temperature-resistant strain gauge is connected with the wireless sensor through an internal wire, a binding post and an external wire, and continuous signal collection is achieved. By implementing operation according to the technical route, the impact load borne by the cross ring at the moment of starting and stopping of the compressor can be collected in a high-quality mode, data collection in a closed cavity is achieved, and an experimental basis is provided for subsequent strength design of the cross ring.

The invention discloses a contactor contact resistance detection device for power distribution equipment, and relates to the technical field of contactor detection, the contactor contact resistance detection device comprises a workbench, a first supporting table and a second supporting table which are both used for conveying a first supporting seat, and the first supporting seat is provided with a plurality of clamping blocks; a second supporting seat is fixedly mounted in the reference frame, a bearing plate is arranged on the second supporting seat, and a three-phase binding post is fixedly mounted on the bearing plate; an epitaxial plate is fixedly installed on the side portion of the reference frame, an epitaxial frame is arranged on the epitaxial plate, two supports which are symmetrically arranged are fixedly installed on the two sides of the epitaxial frame, three probe columns are arranged in each support, each probe column is connected with a resistance tester, and the probe columns extend into contact inner grooves of the contactor and detect the resistance value of each contact. The defects of low efficiency, poor precision, insufficient coverage and potential safety hazards of traditional manual detection are overcome, and a high-reliability and integrated technical solution is provided for contactor contact resistance detection operation.

The invention relates to a metering box with a junction box, and relates to the technical field of metering boxes, the metering box comprises a box body and a box door installed on the box body, and the inner wall of the box body is fixedly provided with a substrate for installing a circuit breaker; a fixing shell and a wiring block are arranged in the box body, one side of the fixing shell is detachably installed on the inner wall of the substrate, and a fixing notch for the wiring block to be installed in is formed in the side face, away from the substrate, of the fixing shell; one side of the wiring block is fixedly provided with a conducting strip connected with a binding post on the circuit breaker, and one side, far away from the conducting strip, of the wiring block is provided with a plurality of wiring holes for connecting and fixing cables; the plurality of cables can be pre-installed in the corresponding wiring holes and are electrically connected with the conductive sheets. In the application, during subsequent installation, only the wiring block provided with the cable needs to be integrally installed in the fixing gap of the fixing shell, and then the conducting strip on the wiring block is connected with the wiring terminal of the circuit breaker.

The utility model relates to a UMU binding post assembly. The technical problem to be solved by the utility model is to provide a UMU binding post assembly. According to the technical scheme, the wiring terminal comprises a wiring terminal connector, a cable, an inner insertion male seat and an outer insertion male seat, the wiring terminal connector comprises a connector body, a connector tightening cap, a front sealing sleeve, a rear sealing sleeve and a cable clamping ring, the connector body is provided with a threaded butt joint column, a connector through hole is formed in the threaded butt joint column, and the connector through hole is communicated with the connector body. The front sealing sleeve comprises a front sealing sleeve positioning part, a front sealing sleeve bearing part and a front sealing sleeve butt joint part, and a clamping receding opening is formed in the outer wall of the front sealing sleeve positioning part. Compared with the prior art, the cable connector has the advantages that the front sealing sleeve and the cable clamping ring are matched with each other, the front sealing sleeve and the cable clamping ring are pressed through tightening of the connector tightening cap, so that the clamping block and the front sealing sleeve positioning part are retracted inwards to clamp a plurality of cables arranged in the front sealing sleeve penetrating hole in a penetrating mode, the clamping force is large, and the sealing waterproof performance is effectively improved.

The invention relates to the technical field of anti-explosion junction boxes, and provides an entrance guard anti-explosion junction box which comprises a mounting bracket, two sealing boxes are erected and mounted at the two ends of the upper portion of the mounting bracket respectively, and a plurality of junction box mechanisms are arranged between the two sealing boxes. Buffering telescopic pipes are connected between the junction box mechanisms and between the junction box mechanisms and the sealing boxes, wire outlet pipes and wiring structures are installed in the junction box mechanisms in a sleeved mode, binding posts are connected to the middles of the wiring structures in a clamped mode, and the two ends of the binding posts are inserted into the two sealing boxes respectively. By arranging the plurality of junction box mechanisms and connecting the sealing box and the junction box mechanisms in series through the sealing box, each junction box mechanism can clamp and communicate the wire outlet pipe to the binding post through the wiring structure, and the wire outlet pipe and the binding post are connected for electric conduction. And the wiring directions of the junction box mechanism and the wire outlet pipe can be freely adjusted in the up-down and front-back directions, so that the device is convenient to use.

The invention relates to the technical field of circuit breakers, and discloses a closing device of a circuit breaker, which comprises a circuit breaker body, an upper binding post and a lower binding post arranged on the circuit breaker body, a transmission assembly arranged on the circuit breaker body, and a locking mechanism and an adjusting mechanism arranged on the transmission assembly, an isolation disconnecting link is movably connected between the upper binding post and the lower binding post. The transmission assembly comprises a transmission main rod which is rotatably installed on the circuit breaker body. According to the closing device of the circuit breaker, when a certain phase of line in the three-phase line of the circuit breaker fails, the corresponding faulty line in the A disconnecting link, the B disconnecting link and the C disconnecting link in the isolation disconnecting links can be accurately isolated and powered off, the specific disconnecting links are unlocked, the other disconnecting links are kept in a locked state, power failure of a non-faulty phase is avoided, and the reliability of the circuit breaker is improved. Through the operation mode, other normal lines can be prevented from being influenced by misoperation, and the stability and the reliability of a power system are effectively improved.

The utility model discloses an anti-misplug power socket, which comprises a mounting rack, a gland arranged in the mounting rack, and a panel arranged on one side of the mounting rack, a conductive piece is arranged in the mounting rack, one side of the conductive piece is provided with a binding post, a safety door is movably arranged between the mounting rack and the gland, a vertical rod is arranged on the safety door, and the vertical rod is provided with an anti-misplug power supply. Through holes are formed in the installation frame and the gland, the vertical rods are installed in the through holes in a sliding mode, a threaded column is integrally formed on the inner side wall of the gland, the outer side of the threaded column is in threaded connection with an adjusting disc, and a limiting groove is formed in the safety door. The safety door is prevented from deflecting in the moving process and being clamped, even if the safety door is clamped, the safety door can be driven to move through the vertical rods, the safety door can move smoothly, the situation that a plug is difficult to insert is avoided, the mounting frame is of a thickened solid structure, and the structural strength of the mounting frame is improved.

The utility model provides a tensile detection device for a wiring terminal of a drop-out fuse, and relates to the technical field of tensile detection equipment. The flat plate is detachably mounted on the tension detector through bolts, and a first clamping part and a second clamping part are arranged on the flat plate; the driving assembly is arranged on the flat plate and can drive the first clamping part to wrap the connecting position of the wire and the wiring terminal and drive the second clamping part to clamp the wire at the same time, so that the wiring terminal and the wire are synchronously positioned. When the first clamping part is driven to position the wiring terminal part, the second clamping part is driven to synchronously fix the wire part, so that the wiring terminal and the wire can be positioned in one step, the operation steps and the consumed time required for clamping the wiring terminal and the wire by personnel are reduced, the batch detection requirement is met, and the production and detection efficiency is improved.

The utility model relates to a transformer, in particular to an oil-immersed transformer convenient to overhaul. The oil-immersed transformer convenient to overhaul comprises a shell, a binding post, a radiator, an outer cover, a window, a hinge, a coil, a fixing frame and the like. Binding posts are arranged on the front side and the rear side of the shell, a radiator is arranged on the left side of the shell, an outer cover is arranged on the top of the shell, hinges are connected between the top of the rear side of the shell and the bottom of the rear side of the outer cover, and the shell and the outer cover are hinged through the hinges. According to the utility model, through the design of the U-shaped pull rod, the bolt, the clamping block and the spring, the fixation of the coil can be quickly released by simply pulling out the bolt and pulling the U-shaped pull rod, and the operation is simple, convenient and quick; and when the coil is fixed again, only the bolt needs to be pulled out, and the clamping block automatically resets under the action of the spring to fix the coil, so that the mounting and dismounting processes of the coil are simplified, the maintenance efficiency is improved, and the labor cost is reduced.

The utility model relates to the technical field of wiring terminal injection molding, and discloses a wiring terminal shell production injection mold convenient to demold, a moving device is composed of a frame body, a threaded rod, a threaded sleeve, a motor, a sliding rod, a sliding block and a U-shaped frame, the frame body is fixedly installed in a supporting rod, the threaded rod is rotatably installed in the frame body, and the threaded sleeve is installed in the U-shaped frame. The threaded sleeve is installed on the surface of the threaded rod in a threaded mode, the motor is fixedly installed on the side face of the frame body, the sliding rod is fixedly installed in the frame body, and the sliding block is installed on the surface of the sliding rod in a sliding mode. According to the wiring terminal shell production injection mold convenient to demold, a lower mounting base is driven by a driving motor and a shaft rod to move, after the lower mounting base moves by a specified distance, an electric push rod is started, and a moving block can move on the surface of a fixed shaft under the action of a connecting rod, so that the lower mounting base rotates around the shaft rod, and automatic discharging is completed; the use is convenient and the effect is good.

The utility model discloses a sealed knob switch, which relates to the field of electrical equipment and comprises a shell, a rotating rod, a knob, a rotating block, a base, a second binding post, a contact piece, a first sealing ring, a second sealing ring and a plurality of first binding posts. When the rotary knob is rotated, the rotary knob drives the rotary block to rotate through the rotary rod, the rotary block drives the contact piece to rotate, one end of the contact piece abuts against the second binding post all the time, the other end of the contact piece makes contact with the multiple first binding posts in sequence, and therefore switching of multiple kinds of connection is achieved. In the long-term use process, the first sealing ring plays a dustproof and waterproof role, and the second sealing ring performs secondary protection, thereby improving the sealing performance of the knob switch, prolonging the service life of the knob switch, and preventing water, dust and other impurities from entering the knob switch, causing faults, and further preventing the use effect from being affected.

The invention relates to a novel crab-claw-shaped jointing clamp for overhauling a direct-current storage battery pack of a transformer substation and a using method, and belongs to the field of storage battery bridging equipment. The wiring clamp is symmetrically provided with two clamping parts, and wiring connecting plates are arranged above the inner sides of the clamping parts; the clamping part comprises a chuck and a connecting plate, the exterior of the chuck is arc-shaped, the interior of the chuck is concave, the chuck is arranged at the front end of the connecting plate, the chuck and the connecting plate are integrally formed, the wiring clamp is connected with a binding post of a storage battery through the chuck, the wiring connecting plate comprises a fixing plate and a conductive connecting plate, one end of the wiring connecting plate is the fixing plate, and the other end of the wiring connecting plate is the conductive connecting plate. The fixing plate and the conductive connecting plate are integrally formed parts, the fixing plate is fixedly connected with the connecting plate, a clamping bolt and a nut are arranged on the fixing plate, and a wiring bolt is arranged on the conductive connecting plate; the shape of the jaw at the front end of the wire clamp is improved, and the chuck and the clamping strip are designed, so that the effective contact surface between the wiring wire clamp and the storage battery is effectively increased, and reliable and firm wiring is ensured.

The utility model discloses a waterproof sealed switch, which relates to the technical field of switch structures and comprises a switch base and a switch upper cover which are matched with each other, a binding post is arranged in an internal cavity structure formed by the switch base and the switch upper cover, and contacts are movably arranged on the side portions of the switch base and the switch upper cover. A pressure spring is arranged between one end of the contact and the binding post, a sealing ring is arranged on a matching surface between the switch base and the switch upper cover, a sealing ring is arranged outside the contact and at the position where one end of the switch base and one end of the switch upper cover extend out, and sealant is arranged at the position where the binding post extends out of the upper end of the switch upper cover. In order to solve the problems, the utility model provides the waterproof sealed switch, the sealing ring is arranged between the switch base and the switch upper cover, and the sealing sheath is designed at the position of the contact, so that the sealing sheath can still play a sealing role along with the extrusion of the contact, thereby ensuring that rainwater cannot enter the switch and achieving a rainwater-proof function.

The utility model discloses a distributed energy storage cabinet control box which comprises a box body, a first binding post and a third binding post are installed on the two sides of the front face of the box body, a second binding post and a fourth binding post are installed on the two sides of the back face of the box body, heat dissipation holes are formed in the two sides of the box body, and a heat dissipation fan and a V power supply module are installed in the box body. An alternating-current power distribution system, a direct-current power distribution system and a control system are also arranged in the box body; according to the distributed energy storage cabinet control box, the alternating-current power distribution system, the direct-current power distribution system and the control system are highly integrated together in the box body, so that the problem of reasonable installation and arrangement of components is solved, and meanwhile, the power distribution, metering and control requirements of a distributed energy storage system can be met; according to the cooling fan of the distributed energy storage cabinet control box, the connecting plate with high toughness is arranged, a certain damping effect can be achieved when the fan body operates, and therefore noise generated when the cooling fan operates is reduced.

The utility model relates to a servo motor with a combined iron core structure, which comprises frameworks and a stator iron core, the number of the frameworks is 12, the frameworks are respectively arranged on the stator iron core, a winding is arranged in each framework, doubling conductive pieces are arranged on the 12 frameworks in a staggered manner, and the stator iron core is of a split combined structure. The top of the framework where the doubling conductive part is installed is provided with an insertion groove, the bottom of the doubling conductive part is provided with an insertion rod inserted into the insertion groove, and the top of the doubling conductive part is provided with a binding post. According to the utility model, the doubling conductive members are arranged on the skeleton in a staggered manner, and the winding arranged on the stator iron core is adjusted from conventional 12 split independent winding to four coil continuous winding, so that the subsequent rewiring process is reduced.

The invention discloses a special tool for measuring loop resistance of a 10kV vacuum circuit breaker and a use method thereof, and relates to the technical field of vacuum circuit breaker measurement, and the special tool comprises a moving unit which comprises a fixed rod, a movable rod arranged at the inner side of the fixed rod, a clamping sleeve arranged at the outer side of one end of the fixed rod, and a guide column arranged at the end part of the movable rod, the binding post is arranged on the outer side of the guide post; and the guide post moves synchronously along with the movable rod, so that the resistance measurement position can be changed. The beneficial effects of the invention are that the measurement position can be flexibly adjusted through the arranged guide column; technicians can conveniently detect the resistance value of the tulip contact; meanwhile, technicians can locate problems more quickly and accurately and carry out targeted maintenance, the maintenance cost is reduced, the maintenance time is shortened, and meanwhile the safety and standardization of overall operation are improved.

The utility model discloses a movable contact group of a change-over switch, which belongs to the technical field of movable contact groups of change-over switches, and particularly structurally comprises a conductive contact ring, a contact column and a contact base, the contact ring is sleeved on the contact column, the contact column is fixedly connected on the contact base, and the lower end of the contact column is fixedly connected with a fixed inlay. And the fixed inlay is embedded into the contact base to be fixed. According to the utility model, after the fixed inlay is fixedly connected with the lower end of the binding post, the end of the binding post is embedded into the contact base to be fixed (by means of pouring and the like), part of the inlay in the contact base is embedded into the groove part or the three-dimensional cavity structure with a large lower part and a small upper part is used for blocking and limiting the fixed inlay, and the fixed inlay is prevented from being damaged under the impact action of horizontal force on the contact post for a long time. According to the utility model, better connection reliability and anti-drop effect are achieved, the connection stability of the contact column can be improved, the drop is avoided, the contact area is increased, and the occlusion stability of the contact base and the contact column is better.

The utility model discloses an inverter with a hidden input terminal binding post. The inverter comprises a housing, a binding post, an inverter circuit and an output interface. The outer surface of the shell is provided with two concave parts, the two concave parts are respectively provided with matched cover bodies, the cover bodies cover the corresponding concave parts, and the cover bodies and the corresponding concave parts define a binding post accommodating space; the other end of the positive terminal and the other end of the negative terminal extend out of the shell and are located in terminal containing spaces defined by the two concave parts and the corresponding cover bodies respectively. Each cover body is provided with a wire hole, and each cover body is detachably connected with the concave part. According to the utility model, the concave part and the detachable cover body are arranged, so that the binding post at the input end of the inverter can be effectively hidden and protected, the binding post is prevented from being exposed or protruding out of the outside, and the binding post is effectively prevented from being corroded or impacted to influence the contact performance of the binding post. And the structure of the cover body is optimized, so that the cover body is convenient to disassemble and assemble and is not easy to fall off.

This utility model discloses a power distribution cabinet, including a door panel. The inner side of the door panel is provided with a wiring section and a buffer section. The wiring section includes at least one base fixedly connected to the door panel. At least one wire groove for arranging wires is opened inside the base. At least one terminal block is provided on the base, located near the wire groove. The buffer section includes a buffer plate movably connected to the door panel. This utility model, by setting a base and providing multiple wire grooves on the surface of the base, allows wires to be placed in the wire grooves. The wire grooves protect and restrict the wires, resulting in an orderly arrangement that facilitates later inspection and maintenance by staff, and also ensures the safety of the wires.

The invention discloses a three-phase mutual inductor type electric energy meter connector and a using method, and relates to the technical field of electric energy meter connectors, the connector comprises a cuboid shell, three-phase binding post grooves are sequentially formed in the shell, each phase binding post groove comprises two current binding post grooves which are isolated from each other, and the current binding post grooves are formed in the shell. Incoming and outgoing line current binding posts are correspondingly mounted in the two current binding post grooves; each current binding post comprises a plug-in conductive post, a bump and a wire fixing groove from top to bottom, and a short-circuit groove is formed in the front surface of each bump; a short-circuit mechanism is arranged on the front face of the shell and comprises a short-circuit rod, three short-circuit pieces corresponding to an A phase, a B phase and a C phase are sequentially embedded in the short-circuit rod, each short-circuit piece can be correspondingly inserted into a short-circuit groove of a three-phase incoming and outgoing line current binding post, the incoming and outgoing line current binding post of each phase is short-circuited, and therefore power-off-free electric energy meter replacement for high-voltage users is achieved.

The utility model relates to a forehead deconcentrator, forehead assembly and scooter, the forehead deconcentrator includes: cladding shell, circuit board, plug socket and a plurality of binding post, cladding cavity is provided in the cladding shell, the circuit board is installed in the cladding cavity, the plurality of binding post is installed on the circuit board, and the plug socket is connected with the plurality of binding post. The circuit board is provided with a wrapping cavity, the wiring terminals are arranged in the wrapping cavity, wiring heads of the wiring terminals penetrate out of the wrapping cavity, the plug female seat is installed on the circuit board and electrically connected with the wiring terminals, and a connecting plug of the plug female seat penetrates out of the wrapping cavity and is used for being electrically connected with an instrument module of the scooter. According to the forehead deconcentrator, wire harnesses can be arranged, the wiring mode of the instrument module is simplified, the assembly is simple, and the occupied space is small.

The utility model discloses a quick connecting device for motor wires, which comprises a junction box and a box cover, a terminal wire holder is fixed in the junction box, six binding posts are fixed at the top of the terminal wire holder, and the distance between adjacent longitudinal binding posts is equal to the distance between adjacent transverse binding posts. Two first pressing plates and three second pressing plates are arranged at the bottom of the box cover, rubber sheets are fixed to the lower end of each first pressing plate and the lower end of each second pressing plate, the two first pressing plates and the three binding posts on the same side are arranged at intervals, and the three second pressing plates are located among the three binding posts on the two sides and correspond to one another in position; the rubber sheets abut against the tops of the copper sheets connected between the adjacent binding posts, and the box cover is provided with an abutting assembly used for abutting against connecting wires connected with the binding posts. After the box cover is covered, the rubber sheet at the bottom of the first pressing plate or the second pressing plate abuts against the copper sheet so as to ensure the stability of the copper sheet, and the abutting assembly keeps the connection stability of the motor connecting wire.

The utility model discloses an OBC transformer support assembly, which relates to the technical field of transformers and comprises a transformer base, a support body fixedly mounted on the transformer base, a coil arranged in the support body, a transformer cover plate fixedly mounted at the upper end of the support body, and a temperature control switch fixedly mounted in the middle of the transformer cover plate. A wiring mechanism is arranged on the support body and comprises a binding post fixedly installed on the support body, a conductive contact is arranged below the binding post, a trigger mechanism is connected to the conductive contact, a metal gasket and a fixing nut are arranged on the binding post, a butt joint port is formed in the upper end of the conductive contact, and a wiring groove is formed in the bottom of the conductive contact. One side of the wiring groove is provided with a fixing screw. According to the OBC transformer support assembly, through cooperative use of the wiring mechanism and the triggering mechanism, operation of the transformer can be stopped immediately when the coil is in a high-temperature state, and the use safety of the transformer is improved.

The utility model discloses a pluggable contact group for a railway point switch, which comprises a contact seat and a contact group, the two ends of the contact seat are respectively provided with six binding posts, and each binding post is connected with a plug-in sheet. According to the utility model, through the function separation design of the contact seat and the contact group, wiring and on-off functions are modularized, misconnection caused by wire dismounting and other risks caused by the fact that a fastener falls into the switch machine are thoroughly avoided, the contact group is vertically locked with the plug-in sheet and the bolt through the plug-in head, stable electrical connection is kept in vibration and severe environments, and the safety of the switch machine is ensured. And faults such as poor contact and short circuit are reduced. Meanwhile, the pluggable structure supports rapid replacement of the contact group, and the maintenance time is shortened. And the bottom sealing structure isolates pollutants, is matched with regular section repair / factory repair, maintains contact cleanness and low resistance, and ensures long-term reliable operation. According to the design, the problem of environmental deterioration of an open contact is radically solved, the operation and maintenance cost is reduced, and the railway transportation safety and efficiency are remarkably improved.

The utility model relates to a single-sound electric horn for a motor vehicle, in particular to an automobile single-sound electric horn, which comprises an electric horn body, and the electric horn body forms an electric horn sealing cavity through edge pressing and riveting of a bottom plate shell (2) and a diaphragm (3). A pressing plate (4), a first binding post (9), a second binding post (10), an electromagnetic coil (11), an iron core (12) and a mounting plate (13) are arranged on the bottom plate shell (2); the diaphragm (3) is provided with a resonance sheet (5) and an armature (6), the bottom plate shell (2) is provided with an air vent, the air vent is connected with an air bag (1) outside the electric horn sealing cavity, and the air bag (1) is communicated with an inner cavity of the electric horn sealing cavity; the electric horn solves the problems that various metal materials inside the electric horn are oxidized and rusted, and the service life is shortened, so that the electric horn can produce sound normally for a long time, and the working state is stable and reliable.

The invention discloses a lengthened pilot integrated explosion-proof electromagnetic valve, relates to the technical field of explosion-proof electromagnetic valves, and aims at solving the problems that a traditional electromagnetic valve is divided into a junction box, a pilot device and a valve body, part of components need to be integrally replaced when internal parts are damaged, and the cost is high. Comprising a valve body, an end cover, a rear cover plate, a junction box, a binding post and a coil. The junction box is installed on the valve body, a first installation cavity is formed in the valve body, and the coil is installed in the first installation cavity; modularized integrated layout is adopted, so that the compactness of the whole structure is improved, and compared with a traditional electromagnetic valve layout structure, installation is more convenient; the valve body is connected with the junction box through a positioning bolt; the structure is simple. The valve body is simple in structure, the junction box, the pilot pipe and the valve body are integrally designed, only individual parts need to be replaced when the parts are damaged, and the maintenance cost is low.