Anti-creeping circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, in particular to an anti-creeping circuit breaker. The circuit breaker comprises a circuit breaker body and two wiring holes arranged at the top and the bottom of the circuit breaker body, and also comprises two sealing devices which are respectively arranged at the two wiring holes and are used for sealing the two wiring holes. The two sealing devices are the same in structure, each sealing device comprises a wiring pipe and a sealing assembly, the wiring pipe and the sealing assembly are vertically and coaxially arranged, one end of the wiring pipe is connected with the outer wall of the circuit breaker body surrounding the wiring hole, the other end of the wiring pipe is detachably connected with the sealing assembly, and a wire hole is formed in the center of the sealing assembly; the inner wall of the wire hole can be attached to the outer wall of the electric wire. According to the utility model, by arranging the wiring pipe and the sealing assembly, external dust or rainwater can be effectively prevented from entering the circuit breaker body, so that short-circuit electric leakage or damage of the circuit breaker is avoided, and the safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a circuit breaker that prevents leakage current. Background Technology

[0002] A circuit breaker is a switching device capable of closing, carrying, and interrupting current under normal circuit conditions and closing, carrying, and interrupting current under abnormal circuit conditions within a specified time. It can be used to distribute electrical energy, infrequently start asynchronous motors, protect power lines and motors, and automatically disconnect the circuit when serious overloads, short circuits, or undervoltage faults occur.

[0003] Currently, circuit breakers are mainly used in homes, industries, and special systems. Their core function is to ensure the safe operation of the power system by automatically interrupting fault currents (such as overloads and short circuits).

[0004] Circuit breakers are generally not moved after wiring, and prolonged storage can lead to dust accumulation, especially in industrial circuit breakers. Dust generated during industrial production easily carries conductive media, and since circuit breaker terminals are often open with wires secured by screws, dust carrying conductive media can easily enter through these terminals and adhere to the wires, potentially causing a short circuit, burning out the circuit breaker, damaging the wire insulation, leading to leakage, and even fire. On construction sites, some circuit breakers are installed in outdoor electrical boxes for easy access to certain equipment. During the rainy season, rainwater can easily enter the box and seep into the circuit breaker's terminals, causing a short circuit and damaging the circuit breaker, resulting in lower safety.

[0005] Therefore, there is an urgent need for a leakage current circuit breaker that can prevent short circuit leakage to improve the safety of circuit breaker use. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a circuit breaker that prevents leakage current. It solves the technical problem that dust, rainwater and other substances can easily enter the circuit breaker through the wiring holes, causing short circuits, which in turn damages the circuit breaker and leads to leakage current.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] This utility model provides a leakage-proof circuit breaker, including a circuit breaker body and two wiring holes opened at the top and bottom of the circuit breaker body, and two sealing devices respectively installed at the two wiring holes for sealing the two wiring holes; the two sealing devices have the same structure, each sealing device including a wiring tube and a sealing assembly, the wiring tube and the sealing assembly are arranged vertically coaxially, one end of the wiring tube is connected to the outer wall of the circuit breaker body surrounding the wiring hole, and the other end is detachably connected to the sealing assembly, and a wire hole is opened at the center of the sealing assembly; the wire can pass through the wire hole vertically through the sealing assembly and the wiring tube in sequence to enter the wiring hole to complete the wiring, and the sealing assembly can seal the wire placed in the wiring hole; the inner wall of the wire hole can fit against the outer wall of the wire.

[0011] Preferably, the sealing assembly includes a first housing, a second housing, and at least two sealing gaskets; the ends of the first housing and the second housing facing the conduit are detachably connected to the conduit via two snap-fit ​​mechanisms; the first housing, the second housing, and the at least two sealing gaskets are all arc-shaped structures, and the opposite sidewalls of the first housing and the second housing can fit together to form a cylinder; all the sealing gaskets are respectively installed on the opposite inner walls of the first housing and the second housing; all the sealing gaskets installed on the inner wall of the first housing are horizontally stacked towards the second housing, and all the sealing gaskets installed on the inner wall of the second housing are horizontally stacked towards the first housing; all the sealing gaskets on the inner walls of the first housing and the second housing can fit together one-to-one to form a cylinder; the inner walls of the two sealing gaskets on the innermost first housing and the second housing can form the wire hole.

[0012] Preferably, the two latching mechanisms have identical structures, each including a latching block, a latching member, a pressing block, and a first elastic member. The latching block is mounted on the end wall of the first housing / second housing facing the connector. The connector has a first guide groove, allowing the latching block on the first housing / second housing to be placed within the first guide groove. The first housing / second housing can move along the length of the first guide groove via the latching block. A vertical moving space is provided inside the connector, located below the first guide groove. The moving space communicates with both the outside and the first guide groove. The latching member, the pressing block, and the first elastic member are all placed within the moving space. Inside, the snap-fit ​​component and the first elastic component are vertically arranged. One end of the snap-fit ​​component facing the circuit breaker body is connected to one end of the first elastic component, and the other end of the first elastic component is connected to the inner wall of the moving space near the circuit breaker body to provide buffering and rebound force for the snap-fit ​​component. The pressing block is horizontally arranged. One end of the pressing block is connected to the snap-fit ​​component, and the other end extends out of the moving space to form a pressing part. The snap-fit ​​block can fit against the snap-fit ​​component. The pressing block can drive the snap-fit ​​component to move vertically in a direction closer to or away from the circuit breaker body, so that the snap-fit ​​block placed in the first guide groove can snap or disengage from the snap-fit ​​component, thereby locking or unlocking the first housing / second housing and the wiring conduit.

[0013] Preferably, both the first guide groove and the snap-fit ​​block have an inverted T-shaped structure to snap the first housing / second housing onto the conduit via the snap-fit ​​block and the first guide groove.

[0014] Preferably, the snap-fit ​​block has a first inclined surface facing downward on its side wall facing the inside of the first housing / second housing, and the snap-fit ​​member has a second inclined surface facing upward on its side wall facing outward.

[0015] Preferably, the latching mechanism further includes a telescopic rod; the fixed end of the telescopic rod is installed on the inner wall of the moving space facing the circuit breaker body, the telescopic end of the telescopic rod is connected to the end of the latching member facing the circuit breaker body, and the first elastic member is sleeved on the outside of the telescopic rod so that the telescopic rod provides guidance for the buffering and rebound of the first elastic member.

[0016] Preferably, the sealing assembly further includes a cap, which is screwed to the end of the first housing and the second housing away from the conduit to fix the first housing and the second housing; the end of the cap away from the conduit is provided with a horizontally arranged elongated hole to provide clearance space for the wire.

[0017] Preferably, it further includes two clamping mechanisms; two horizontally arranged sliding spaces are provided on one side wall of the circuit breaker body, and the two sliding spaces are connected to the two wiring holes one by one; the two clamping mechanisms are horizontally screwed into the sliding spaces, and the end of the clamping mechanism facing the wiring hole is the clamping end. The clamping mechanism can move along its own axis within the sliding space so that the clamping end clamps or releases the wire.

[0018] Preferably, the clamping mechanism includes a screw, a clamping plate, a pre-compression mechanism, and two guide blocks; two second guide grooves are provided on the two side walls of the wiring hole; the clamping plate is vertically placed in the wiring hole, and the two guide blocks are respectively installed on the two side walls of the clamping plate and in the two second guide grooves to provide guidance for the clamping plate and the two guide blocks; the screw passes through the pushing space and is screwed to the inner wall of the pushing space, and the end of the screw facing the clamping plate is the pushing end. Tightening the screw can drive the pushing end to push the clamping plate toward the wire to clamp the wire; the pre-compression mechanism passes horizontally through the side wall of the circuit breaker body and is connected to the two guide blocks respectively. The pre-compression mechanism can drive the two guide blocks to move simultaneously along the two second guide grooves toward the direction closer to or away from the wire to pre-compress or release the wire.

[0019] Preferably, the pre-compression mechanism includes a connecting rod, two pull rods, and two second elastic elements; one end of each of the two pull rods passes horizontally through the side wall of the circuit breaker body and is connected to the two guide blocks respectively, and the other end is hinged to both ends of the connecting rod respectively, with the axis of the pull rod parallel to the axis of the screw; the two second elastic elements are respectively placed in the second guide grooves, and the two second elastic elements are respectively sleeved on the outer wall of the two pull rods, with one end of each of the two second elastic elements connected to the two guide blocks respectively, and the other end connected to the inner wall of the two second guide grooves facing the guide blocks respectively, so that the second elastic elements provide buffering force and rebound force for the guide blocks; the pull rods can drive the guide blocks and the pressure plate to move towards the direction close to the wiring hole through the rebound force of the second elastic elements, so that the pressure plate can pre-compress the wire; the side of the pressure plate away from the pull rod is provided with anti-slip texture.

[0020] (III) Beneficial Effects

[0021] The beneficial effects of this utility model are:

[0022] This invention features a wiring conduit and a sealing assembly coaxially arranged at the wiring holes on the top and bottom of the circuit breaker body. The sealing assembly has a central wire hole whose inner wall fits snugly against the outer wall of the wire, effectively sealing and protecting the wire inside the wiring hole. This prevents external dust, especially conductive dust in industrial environments, from entering the circuit breaker through the wiring hole, thus avoiding the risk of short circuits, leakage, or fire. It also prevents rainwater from seeping into the wiring hole during rainy seasons or outdoor use, thus preventing short circuits and equipment damage, and improving circuit breaker safety. Furthermore, the detachable connection between the sealing assembly and the wiring conduit makes the sealing assembly easier to install and remove, improving efficiency and enhancing the circuit breaker's versatility and maintenance convenience. In conclusion, this invention, with its wiring conduit and sealing assembly, effectively prevents external dust or rainwater from entering the circuit breaker body, thereby avoiding short circuits, leakage, or damage and improving safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a leakage-proof circuit breaker according to the present invention.

[0024] Figure 2 This is a schematic cross-sectional view of the overall structure of a leakage-proof circuit breaker according to the present invention.

[0025] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is a three-dimensional disassembled structural diagram of the first outer shell, the second outer shell, and at least two sealing gaskets of a leakage-proof circuit breaker according to the present invention.

[0027] Figure 5 This is a three-dimensional structural diagram showing the overall disassembly of a leakage-proof circuit breaker according to this utility model.

[0028] Figure 6 This is a three-dimensional structural diagram showing the overall disassembly of a leakage-proof circuit breaker according to this utility model from another direction.

[0029] Figure 7 This is a schematic diagram of the overall three-dimensional structure of the sealing door of a circuit breaker for preventing leakage current according to this utility model.

[0030] [Explanation of Labels in the Attached Image]

[0031] 1: Circuit breaker body; 11: Wiring hole; 12: Pushing space; 13: Second guide groove; 2: Sealing device; 21: Wiring pipe; 211: First guide groove; 212: Moving space; 22: Sealing assembly; 221: Wire hole; 222: First housing; 223: Second housing; 224: Sealing gasket; 225: Sealing cap; 2251: Elongated hole; 23: Snap-fit ​​mechanism; 231: Snap-fit ​​block; 2311: First 232: sloping surface; 2321: second sloping surface; 233: pressing block; 234: first elastic element; 235: telescopic rod; 3: pressing mechanism; 31: screw; 32: pressing plate; 33: pre-pressing mechanism; 331: connecting rod; 332: pull rod; 333: second elastic element; 34: guide block; 4: sealing door; 41: first vertical surface; 42: third sloping surface; 43: horizontal surface; 44: second vertical surface. Detailed Implementation

[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0033] Example

[0034] This embodiment of a leakage protection circuit breaker includes a circuit breaker body 1 and two wiring holes 11 opened at the top and bottom of the circuit breaker body 1, and also includes two sealing devices 2 respectively installed at the two wiring holes 11 for sealing the two wiring holes 11.

[0035] Specifically, such as Figure 1As shown, the two sealing devices 2 have identical structures. Each sealing device 2 includes a wiring conduit 21 and a sealing assembly 22. The wiring conduit 21 and the sealing assembly 22 are vertically coaxially arranged. One end of the wiring conduit 21 is connected to the outer wall of the circuit breaker body 1 surrounding the wiring hole 11, and the other end is detachably connected to the sealing assembly 22. A wire hole 221 is provided at the center of the sealing assembly 222. Wires can pass vertically through the wire hole 221, sequentially through the sealing assembly 22 and the wiring conduit 21, into the wiring hole 11 to complete the wiring. The sealing assembly 22 can seal the wire placed in the wiring hole 11. The inner wall of the wire hole 221 can fit against the outer wall of the wire. By providing a wiring conduit 21 and a sealing assembly 22 coaxially arranged with the wiring holes 11 at the top and bottom of the circuit breaker body 1, the sealing assembly 22 has a wire hole 221 at its center. The inner wall of the wire hole 221 can fit against the outer wall of the wire, thus sealing and protecting the wire inside the wiring hole 11. This prevents external dust, especially dust carrying conductive media in industrial environments, from entering the circuit breaker through the wiring hole 11 and causing short circuits, leakage, or fires. It also prevents rainwater from seeping into the circuit breaker through the wiring hole 11 during the rainy season or when used outdoors, thus avoiding short circuits and equipment damage, and improving the circuit breaker's safety. Moreover, by using a detachable connection between the sealing assembly 22 and the wiring conduit 21, the installation and removal of the sealing assembly 22 are more convenient, thereby improving the efficiency of installation and removal of the sealing assembly 22 and enhancing the versatility and maintenance convenience of the circuit breaker.

[0036] Furthermore, the sealing assembly 22 includes a first housing 222, a second housing 223, and at least two sealing gaskets 224.

[0037] Specifically, such as Figure 2As shown, the ends of the first housing 222 and the second housing 223 facing the wiring conduit 21 are detachably connected to the wiring conduit 21 via two snap-fit ​​mechanisms 23. This not only facilitates disassembly and replacement but also provides good adaptability, allowing for the selection of appropriate sizes of sealing gaskets 224 to match wires of different diameters, thus improving the versatility and flexibility of the sealing device 2. The first housing 222, the second housing 223, and at least two sealing gaskets 224 are all arc-shaped structures, and the opposite sidewalls of the first housing 222 and the second housing 223 can be fitted together to form a cylinder. All sealing gaskets 224 are respectively installed on the opposite inner walls of the first housing 222 and the second housing 223. All sealing gaskets 224 installed on the inner wall of the first housing 222 are horizontally stacked towards the second housing 223, and all sealing gaskets 224 installed on the inner wall of the second housing 223 are horizontally stacked towards the first housing 222. All sealing gaskets 224 on the inner walls of the first housing 222 and the second housing 223 can be fitted together one-to-one to form a cylinder. In other words, all the gaskets 224 installed on the inner wall of the first housing 222 are stacked radially toward the second housing 223, and all the gaskets 224 installed on the inner wall of the second housing 223 are stacked radially toward the first housing 222. The stacked gaskets 224 enhance the reliability of the seal, effectively preventing the intrusion of rainwater and conductive dust even in harsh environments (such as high humidity, dust, or outdoors), thereby avoiding safety hazards such as short circuits, leakage, and even fires. Figure 4 As shown, each sealing gasket 224 installed on the inner wall of the first housing 222 corresponds to and is fitted one-to-one with each sealing gasket 224 installed on the inner wall of the second housing 223. For example, the opposite sidewalls of the first sealing gasket 224 on the first housing 222 and the first sealing gasket 224 on the second housing 223 are fitted together, and the opposite sidewalls of the second sealing gasket 224 on the first housing 222 and the second sealing gasket 224 on the second housing 223 are fitted together, etc., so as to make the seal on the wiring hole 11 more tight and prevent the intrusion of rainwater and conductive dust. The inner walls of the two sealing gaskets 224 on the innermost first housing 222 and the second housing 223 can form a wire hole 221, which can form an effective sealing structure to effectively prevent external dust or rainwater from entering the wiring hole 11, thereby avoiding short circuit leakage or damage to the circuit breaker body 1.

[0038] Furthermore, the two latching mechanisms 23 have the same structure, and each latching mechanism 23 includes a latching block 231, a latching member 232, a pressing block 233, and a first elastic member 234.

[0039] Specifically, such as Figure 3As shown, the snap-fit ​​block 231 is installed on the end wall of the first housing 222 / second housing 223 facing the connector 21. The connector 21 is provided with a first guide groove 211. The snap-fit ​​block 231 on the first housing 222 / second housing 223 can be placed in the first guide groove 211, and the first housing 222 / second housing 223 can move along the length direction of the first guide groove 211 within the first guide groove 211 via the snap-fit ​​block 231. It should be noted that there are two first guide grooves 211. The snap-fit ​​block 231 on the first housing 222 can be placed in the corresponding first guide groove 211, and the first housing 222 can move along the length direction of the first guide groove 211 within the first guide groove 211 via the snap-fit ​​block 231. The snap-fit ​​block 231 on the second housing 223 can be placed in the other corresponding first guide groove 211, and the second housing 223 can move along the length direction of the first guide groove 211 within the first guide groove 211 via the snap-fit ​​block 231. It should be noted that... Figure 3 Although only the engagement between the second housing 223 and the latching mechanism 23 is shown, the engagement between the first housing 222 and the latching mechanism 23 can also be achieved through... Figure 3 I understand. The locking mechanism 23 has the same structure, the difference lies in the position of the first outer shell 222 and the second outer shell 223, as well as the direction of the locking mechanism 23.

[0040] A vertically arranged movable space 212 is provided inside the wiring conduit 21. The movable space 212 is located below the first guide groove 211 and is connected to both the outside and the first guide groove 211. The snap-fit ​​component 232, the pressing block 233, and the first elastic component 234 are all placed within the movable space 212. That is, there are two movable spaces 212, which are connected to the two first guide grooves 211 and the outside, respectively. The snap-fit ​​component 232 and the first elastic component 234 are arranged vertically. One end of the snap-fit ​​component 232 facing the circuit breaker body 1 is connected to one end of the first elastic component 234, and the other end of the first elastic component 234 is connected to the inner wall of the movable space 212 near the circuit breaker body 1 to provide buffering and rebound force for the snap-fit ​​component 232. The pressing block 233 is arranged horizontally. One end of the pressing block 233 is connected to the snap-fit ​​component 232, and the other end extends out of the movable space 212 to form a pressing part. The innermost sidewall of the moving space 212 of the snap-fit ​​component 232 can fit against the inner sidewall of the snap-fit ​​block 231 away from the first guide groove 211, thereby achieving snap-fit ​​between the snap-fit ​​block 231 and the snap-fit ​​component 232, and thus snapping the first housing 222 and the second housing 223 onto the end of the wiring conduit 21 away from the wiring hole 11. The pressing block 233 can drive the snap-fit ​​component 232 to move vertically toward or away from the circuit breaker body 1, so that the snap-fit ​​block 231 placed in the first guide groove 211 can snap or disengage from the snap-fit ​​component 232, thereby locking or unlocking the first housing 222 and the wiring conduit 21 and the second housing 223 and the wiring conduit 21. By setting the snap-fit ​​block 231, the snap-fit ​​component 232, the pressing block 233 and the first elastic member 234 can achieve locking and unlocking between the first housing 222 / second housing 223 and the wiring conduit 21 through the cooperation of the snap-fit ​​block 231 and the snap-fit ​​component 232, which is convenient and quick to operate.

[0041] When locking is required, pressing the pressing part of the pressing block 233 on the side of the first housing 222 compresses the first elastic member 234 and provides a buffering force for the latching member 232. The pressing block 233 then drives the latching member 232 to move away from the first guide groove 211. The latching block 231 is then placed in the first guide groove 211 and pushes the first housing 222, causing the latching block 231 to slide along it to its innermost part. At this time, the inner wall of the first housing 222 is flush with the inner wall of the wiring tube 21. Releasing the pressing block 233 allows the latching member 232 to move towards the first guide groove 211 by the rebound force of the first elastic member 234. This allows the innermost side wall of the latching member 232 in the moving space 212 to fit against the inner side wall of the latching block 231 away from the first guide groove 211, thus locking the first housing 222. The second outer shell 223 is also locked in the same way as described above. When the pressing block 233 on the side of the second outer shell 223 is pressed, the first elastic member 234 provides a buffering force for the snap-fit ​​member 232. The pressing block 233 then drives the snap-fit ​​member 232 to move away from the first guide groove 211. The snap-fit ​​member 231 is placed in the first guide groove 211 and pushes the first outer shell 222, so that the snap-fit ​​member 231 slides along it to its innermost part. At this time, the inner wall of the second outer shell 223 is flush with the inner wall of the wiring tube 21. Furthermore, the opposite side walls of the second outer shell 223 and the first outer shell 222 are in contact, and the side walls of all the sealing gaskets 224 on the second outer shell 223 and the first outer shell 222 are in corresponding contact. Releasing the pressing block 233 allows the latching member 232 to move towards the first guide groove 211 under the restoring force of the first elastic member 234. This allows the innermost sidewall of the latching member 232 in the moving space 212 to fit against the inner sidewall of the latching block 231 away from the first guide groove 211, thus locking the second outer shell 223. When unlocking is required, the unlocking of the first outer shell 222 will be explained first. First, press the pressing block 233 on the side of the first housing 222. The first elastic element 234 provides a buffering force for the snap-fit ​​232. The pressing block 233 then drives the snap-fit ​​232 to move vertically away from the first guide groove 211, moving the first housing 222 away from the first guide groove 211. This causes the snap-fit ​​231 to move along the first guide groove 211 away from the first guide groove 211, thereby removing the first housing 222 from the wiring tube 21 and unlocking the first housing 222. Finally, release the pressing block 233, and the snap-fit ​​232 returns to its initial position through the rebound force of the first elastic element 234.When the second outer casing 223 is unlocked, it is also unlocked in the same way as described above. First, press the pressing block 233 on the side of the second outer casing 223. The first elastic member 234 provides a buffering force for the latching member 232. The pressing block 233 then drives the latching member 232 to move away from the first guide groove 211. Move the second outer casing 223 so that it moves away from the first guide groove 211. This causes the latching block 231 to move along the first guide groove 211 away from the first guide groove 211, thereby removing the second outer casing 223 from the wiring tube 21 and completing the unlocking of the second outer casing 223. Finally, release the pressing block 233, and the latching member 232 returns to its initial position through the rebound force of the first elastic member 234.

[0042] Furthermore, such as Figure 4 As shown, both the first guide groove 211 and the snap-fit ​​block 231 have an inverted T-shaped structure, which allows the first outer shell 222 and the second outer shell 223 to be stably embedded in the first guide groove 211 through the snap-fit ​​block 231. This achieves positioning and limiting between the first outer shell 222 and the second outer shell 223 and the wiring pipe 21, making the snap-fit ​​between the first outer shell 222 and the second outer shell 223 and the wiring pipe 21 more stable. This effectively prevents the sealing component 22 from falling off during installation or use, and improves the stability and reliability between the wiring pipe 21 and the sealing component 22. The first outer shell 222 is snapped onto the wiring pipe 21 through the snap-fit ​​block 231 and the first guide groove 211, and the second outer shell 223 is snapped onto the wiring pipe 21 through the snap-fit ​​block 231 and the first guide groove 211.

[0043] Furthermore, such as Figure 3 As shown, the snap-fit ​​block 231 has a first inclined surface 2311 facing downwards on its side wall facing the inside of the first housing 222 / second housing 223. That is, the snap-fit ​​block 231 connected to the first housing 222 has a first inclined surface 2311 facing downwards towards the inside of the first housing 222 on its side wall, and the snap-fit ​​block 231 connected to the second housing 223 has a first inclined surface 2311 facing downwards towards the inside of the second housing 223 on its side wall. The snap-fit ​​member 232 has a first inclined surface 2311 facing downwards towards the outside on its side wall. The second inclined surface 2321, that is, the two snap-fit ​​pieces 232 that cooperate with the snap-fit ​​block 231 on the first housing 222 and the snap-fit ​​block 231 on the second housing 223, are provided with an upward inclined surface 2321 on the side wall facing the outside. The first inclined surface 2311 and the second inclined surface 2321 can slide when in contact, thereby causing the snap-fit ​​block 231 to move towards the innermost part of the first guide groove 211, so that the locking between the snap-fit ​​block 231 and the snap-fit ​​piece 232 is smoother.

[0044] Furthermore, such as Figure 3As shown, the latching mechanism 23 also includes a telescopic rod 235. The fixed end of the telescopic rod 235 is installed on the inner wall of the movable space 212 facing the circuit breaker body 1, and the telescopic end of the telescopic rod 235 is connected to one end of the latching member 232 facing the circuit breaker body 1. The first elastic member 234 is sleeved on the outside of the telescopic rod 235 so that the telescopic rod 235 provides guidance for the buffering and rebound of the first elastic member 234, so as to ensure that the first elastic member 234 moves along the axis of the telescopic rod 235 during compression and rebound, avoiding the first elastic member 234 from shifting, twisting or jamming due to uneven force, thereby improving the stability and service life of the first elastic member 234.

[0045] Furthermore, such as Figure 1 and Figure 2 As shown, the sealing assembly 22 also includes a cap 225, which is screwed to the end of the first housing 222 and the second housing 223 away from the wiring tube 21 to fix the first housing 222 and the second housing 223. This further improves the stability and sealing performance of the sealing assembly 22, preventing the first housing 222 and / or the second housing 223 from loosening due to vibration, external force, or long-term use. This ensures that the sealing gaskets 224 always maintain a good fit, improving the sealing performance. The end of the cap 225 away from the wiring tube 21 has a horizontally set elongated hole 2251 to provide clearance for the wire, so that the wire is not restricted by the cap 225 when passing through the sealing assembly 22. At the same time, the horizontal setting of the elongated hole 2251 allows the cap 225 to meet the needs of the wire passing through without compromising the structural strength and sealing performance of the cap 225.

[0046] Furthermore, such as Figure 5 and Figure 6 As shown, this embodiment also includes two clamping mechanisms 3. Two horizontally arranged sliding spaces 12 are provided on one side wall of the circuit breaker body 1, and the two sliding spaces 12 are connected to two wiring holes 11 in a one-to-one correspondence. The two clamping mechanisms 3 are horizontally screwed into the sliding spaces 12. The end of the clamping mechanism 3 facing the wiring hole 11 is the clamping end. The clamping mechanism 3 can move along its own axis within the sliding space 12 to clamp or loosen the wire, preventing the wire from becoming loose and causing a short circuit, thereby generating heat and burning out the circuit breaker and the wire, and preventing leakage current from the circuit breaker. Furthermore, it can effectively prevent the wire from falling off or shifting due to external vibration or thermal expansion and contraction, improving the wiring stability between the wire and the circuit breaker.

[0047] Furthermore, such as Figure 2 and Figure 6As shown, the clamping mechanism 3 includes a screw 31, a clamping plate 32, a pre-pressing mechanism 33, and two guide blocks 34. Two second guide grooves 13 are provided on the two side walls of the wiring hole 11. The clamping plate 32 is vertically placed inside the wiring hole 11. The two guide blocks 34 are respectively installed on the two side walls of the clamping plate 32 and are respectively installed in the two second guide grooves 13 to provide guidance for the clamping plate 32 and the two guide blocks 34, ensuring that the clamping plate 32 remains vertical during movement and preventing offset, tilting, or jamming. Screw 31 passes through the sliding space 12 and is screwed to the inner wall of the sliding space 12. The end of screw 31 facing the clamping plate 32 is the sliding end. Tightening screw 31 can drive the sliding end to push the clamping plate 32 towards the wire to clamp the wire, thereby realizing the clamping operation of the clamping plate 32 on the wire. This allows the clamping plate 32 to clamp the wire, preventing the wire from loosening and causing short circuits or leakage, thus improving safety. The pre-compression mechanism 33 passes horizontally through the side wall of the circuit breaker body 1 and is connected to two guide blocks 34 respectively. The pre-compression mechanism 33 can drive the two guide blocks 34 to move simultaneously along the two second guide grooves 13 towards or away from the wire to pre-compress or loosen the wire, that is, to position the wire. This first fixes the wiring position of the wire, and then the screw 31 is used to clamp the wire, improving the convenience of wiring.

[0048] Furthermore, such as Figure 6As shown, the pre-compression mechanism 33 includes a connecting rod 331, two pull rods 332, and two second elastic elements 333. One end of each pull rod 332 passes horizontally through the side wall of the circuit breaker body 1 and is connected to one of the two guide blocks 34, respectively. The other end is hinged to both ends of the connecting rod 331, and the axis of the pull rod 332 is parallel to the axis of the screw 31. The two second elastic elements 333 are respectively placed in the second guide groove 13 and are respectively sleeved on the outer wall of the two pull rods 332. One end of each second elastic element 333 is connected to the two guide blocks 34, and the other end is connected to the inner wall of the two second guide grooves 13 facing the guide block 34, so that the second elastic elements 333 provide buffering force and rebound force for the guide blocks 34. The pull rods 332 can drive the guide blocks 34 and the pressure plate 32 to move towards the terminal hole 11 through the rebound force of the second elastic elements 333, so that the pressure plate 32 can pre-compress the wire. When the wire needs to be disconnected, the connecting rod 331 can simultaneously pull the two levers 332, causing the clamping plate 32 and the two guide blocks 34 to move away from the wiring hole 11. At this time, the second elastic element 333 is compressed, providing a buffering force for the guide blocks 34 and the clamping plate 32, preventing the guide blocks 34 from hitting the inner wall of the second guide groove 13 and causing damage, thus achieving wire disconnection. When wiring is required, the connecting rod 331 can be released. The two guide blocks 34 and the two levers 332 move towards the wiring hole 11 due to the rebound force of the second elastic element 333, thereby driving the clamping plate 32 to move towards the wiring hole 11, so that the clamping plate 32 pre-presses the wire, realizing the positioning of the wire wiring position. Preferably, the side of the clamping plate 32 away from the lever 332 is provided with anti-slip texture, which can increase the friction between the clamping plate 32 and the surface of the wire, prevent the wire from slipping or loosening, and improve safety.

[0049] Furthermore, such as Figure 1 , Figure 2 , Figures 5-7 As shown, this embodiment also includes a sealing door 4. Two mounting spaces are provided on the circuit breaker body 1, each connected to one of the two sliding spaces 12, and both mounting spaces are also connected to the outside. Figure 7As shown, the vertical section of the sealing door 4 includes a first vertical surface 41, a third inclined surface 42, a horizontal surface 43, and a second vertical surface 44. One end of the first vertical surface 41 is hinged to the installation space, and the other end is connected to one end of the third inclined surface 42. The other end of the third inclined surface 42 is connected to one end of the horizontal surface 43, and the other end of the horizontal surface 43 is connected to one end of the second vertical surface 44. The side wall of the first vertical surface 41 away from the installation space is flush with the side wall of the circuit breaker body 1. The side wall of the second vertical surface 44 facing the circuit breaker body 1 is flush with the side wall of the circuit breaker body 1. The third inclined surface 42 slopes downwards towards the direction close to the pushing space 12. The side wall of the horizontal surface 43 near the circuit breaker body 1 is flush with the inner wall of the installation space facing the center of the circuit breaker body 1. The sealing door 4 is made of a deformable material, such as plastic, which can seal the installation space, thereby sealing the screw 31 and preventing the risk of leakage if the screw 31 is touched.

[0050] Based on the above structure, the working principle of a leakage-proof circuit breaker in this embodiment is as follows:

[0051] First, pull the connecting rod 331 to move away from the circuit breaker body 1, causing the two pull rods 332 to move away from the wiring hole 11. This causes the two guide blocks 34 to move along the second guide groove 13 away from the wiring hole 11, thereby causing the clamping plate 32 to move away from the wiring hole 11. At this time, the two second elastic elements 333 are compressed simultaneously. Then, insert the wire terminal into the wiring hole 11 and release the pull rod 332. The two second elastic elements 333 rebound simultaneously, causing the two guide blocks 34 to simultaneously drive the clamping plate 32, connecting rod 331, and two pull rods 332 to move towards the wiring hole 11, causing the clamping plate 32 to pre-tighten the wire terminal. Then, rotate the screw 31, causing the pushing end of the screw 31 to move towards the clamping plate 32, causing the pushing end of the screw 31 to continue pushing the clamping plate 32 until the clamping plate 32 fully clamps the wire terminal, making the wire unable to be easily pulled out or loosened, thus completing the wire connection. Finally, rotate the sealing door 4 so that the side wall of the horizontal surface 43 of the sealing door 4, near the circuit breaker body 1, fits against the inner wall of the installation space facing the center of the circuit breaker body 1, and the side wall of the second vertical surface 44, facing the circuit breaker body 1, fits against the side wall of the circuit breaker body 1, thus sealing the installation space with the sealing door 4. The wires at the other end are connected in the same way, which will not be described in detail here.

[0052] After wiring is completed, press the pressing block 233, causing it to move the snap-fit ​​component 232 away from the first guide groove 211. At this time, the telescopic rod 235 shortens, and the first elastic element 234 is compressed. Install the first outer shell 222 into the first guide groove 211 via the snap-fit ​​component 231, while continuing to move the first outer shell 222 until the snap-fit ​​component 231 is located at the innermost part of the first guide groove 211. Then release the pressing block 233. Due to the rebound force of the first elastic element 234, the snap-fit ​​component 232 moves towards the first guide groove 211 until the side wall of the snap-fit ​​component 232 facing inwards from the first outer shell 222 is in contact with the side wall of the snap-fit ​​component 231 facing outwards, thus achieving the snap-fit ​​between the snap-fit ​​component 232 and the snap-fit ​​component 231, thereby snapping the first outer shell 222 onto the wiring conduit 21. The second outer shell 223 is also snapped and installed in the same manner as described above, which will not be elaborated here. To clarify, the multi-layer sealing gaskets 224 on the inner wall of the first outer casing 222 are pre-installed. The inner walls of the two innermost sealing gaskets 224 are fitted against the outer wall of the wire insulation layer. Finally, the cap 225 is screwed onto the first outer casing 222 and the second outer casing 223 through the elongated hole 2251 to further secure the connection between the first outer casing 222 and the second outer casing 223, thereby sealing the wiring hole 11. This completes the sealing of one wiring hole 11. The other wiring hole 11 is sealed in the same way, and will not be described in detail here.

[0053] It should be noted that both the clamping plate 32 and the screw 31 are conductive metals, enabling the circuit breaker to function as a switch. The sealing gasket 224 can be made of rubber to achieve a sealing effect.

[0054] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0056] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A leakage-proof circuit breaker, comprising a circuit breaker body (1) and two wiring holes (11) opened at the top and bottom of the circuit breaker body (1), characterized in that, It also includes two sealing devices (2) installed at the two wiring holes (11) respectively for sealing the two wiring holes (11); The two sealing devices (2) have the same structure. Each sealing device (2) includes a wiring pipe (21) and a sealing assembly (22). The wiring pipe (21) and the sealing assembly (22) are arranged vertically and coaxially. One end of the wiring pipe (21) is connected to the outer wall of the circuit breaker body (1) surrounding the wiring hole (11), and the other end is detachably connected to the sealing assembly (22). A wire hole (221) is opened at the center of the sealing assembly (22). The wire can pass vertically through the wire hole (221) and the sealing assembly (22) and the wiring tube (21) in sequence to enter the wiring hole (11) to complete the wiring. The sealing assembly (22) can seal the wire placed in the wiring hole (11). The inner wall of the wire hole (221) can fit against the outer wall of the wire.

2. The leakage-proof circuit breaker as described in claim 1, characterized in that: The sealing assembly (22) includes a first housing (222), a second housing (223), and at least two sealing gaskets (224); The ends of the first housing (222) and the second housing (223) facing the wiring pipe (21) are detachably connected to the wiring pipe (21) by two snap-fit ​​mechanisms (23). The first housing (222), the second housing (223) and at least two sealing gaskets (224) are all arc-shaped structures, and the opposite side walls of the first housing (222) and the second housing (223) can fit together to form a cylinder. All the sealing gaskets (224) are respectively installed on the opposite inner walls of the first housing (222) and the second housing (223). All the sealing gaskets (224) installed on the inner wall of the first outer shell (222) are horizontally stacked in the direction towards the second outer shell (223), and all the sealing gaskets (224) installed on the inner wall of the second outer shell (223) are horizontally stacked in the direction towards the first outer shell (222). All the sealing gaskets (224) on the inner walls of the first outer shell (222) and the second outer shell (223) can be fitted together and formed into a cylinder in a one-to-one correspondence. The inner walls of the two sealing gaskets (224) on the innermost first housing (222) and second housing (223) can form the wire hole (221).

3. The leakage-proof circuit breaker as described in claim 2, characterized in that: The two latching mechanisms (23) have the same structure, and each latching mechanism (23) includes a latching block (231), a latching member (232), a pressing block (233) and a first elastic member (234); The snap-fit ​​block (231) is installed on the end wall of the first housing (222) / second housing (223) facing the connector (21). The connector (21) is provided with a first guide groove (211). The snap-fit ​​block (231) on the first housing (222) / second housing (223) can be placed in the first guide groove (211). The first housing (222) / second housing (223) can move along the length direction of the first guide groove (211) within the first guide groove (211) through the snap-fit ​​block (231). The wiring conduit (21) is provided with a vertical moving space (212), which is located below the first guide groove (211). The moving space (212) is connected to the outside and the first guide groove (211). The snap-fit ​​component (232), the pressing block (233), and the first elastic component (234) are all placed in the moving space (212). The snap-fit ​​component (232) and the first elastic component (234) are arranged vertically. One end of the snap-fit ​​component (232) facing the circuit breaker body (1) is connected to one end of the first elastic component (234). The other end of the first elastic component (234) is connected to the inner wall of the moving space (212) near the circuit breaker body (1) to provide buffering force and rebound force for the snap-fit ​​component (232). The pressing block (233) is horizontally arranged, one end of the pressing block (233) is connected to the snap-fit ​​member (232), and the other end extends out of the moving space (212) to form a pressing part; The snap-fit ​​block (231) can fit into the snap-fit ​​member (232); The pressing block (233) can drive the snap-fit ​​member (232) to move vertically toward or away from the circuit breaker body (1), so that the snap-fit ​​block (231) placed in the first guide groove (211) can engage or disengage with the snap-fit ​​member (232), thereby locking or unlocking the first housing (222) / second housing (223) and the wiring conduit (21).

4. The leakage-proof circuit breaker as described in claim 3, characterized in that: Both the first guide groove (211) and the snap-fit ​​block (231) have an inverted T-shaped structure, so that the first housing (222) / second housing (223) can be snapped onto the wiring pipe (21) by the snap-fit ​​block (231) and the first guide groove (211).

5. The leakage-proof circuit breaker as described in claim 3, characterized in that: The snap-fit ​​block (231) has a first inclined surface (2311) facing downward on the side wall facing the inside of the first outer shell (222) / second outer shell (223), and the snap-fit ​​member (232) has a second inclined surface (2321) facing upward on the side wall facing outward.

6. The leakage-proof circuit breaker as described in claim 3, characterized in that: The buckling mechanism (23) also includes a telescopic rod (235); The fixed end of the telescopic rod (235) is installed on the inner wall of the movable space (212) facing the circuit breaker body (1), and the telescopic end of the telescopic rod (235) is installed on the end of the snap-fit ​​member (232) facing the circuit breaker body (1). The first elastic member (234) is sleeved on the outside of the telescopic rod (235) so that the telescopic rod (235) provides guidance for the buffering and rebound of the first elastic member (234).

7. The leakage-proof circuit breaker as described in claim 2, characterized in that: The sealing assembly (22) further includes a cap (225) which is screwed to the end of the first housing (222) and the second housing (223) away from the terminal (21) to secure the first housing (222) and the second housing (223); The end of the cap (225) away from the connector (21) is provided with a horizontally arranged elongated hole (2251) to provide clearance for the wire.

8. The leakage-proof circuit breaker as described in claim 1, characterized in that: It also includes two clamping mechanisms (3); Two horizontally arranged sliding spaces (12) are provided on one side wall of the circuit breaker body (1), and the two sliding spaces (12) are connected to the two wiring holes (11) in a one-to-one correspondence. Two clamping mechanisms (3) are horizontally screwed into the pushing space (12). The end of the clamping mechanism (3) facing the wiring hole (11) is the clamping end. The clamping mechanism (3) can move along its own axis within the pushing space (12) to clamp or release the wire.

9. The leakage-proof circuit breaker as described in claim 8, characterized in that: The clamping mechanism (3) includes a screw (31), a clamping plate (32), a pre-pressing mechanism (33), and two guide blocks (34); Two second guide grooves (13) are provided on the two side walls of the wiring hole (11); The clamping plate (32) is vertically placed in the wiring hole (11), and the two guide blocks (34) are respectively installed on the two side walls of the clamping plate (32), and the two guide blocks (34) are respectively installed in the two second guide grooves (13) to provide guidance for the clamping plate (32) and the two guide blocks (34); The screw (31) is inserted into the pushing space (12) and screwed to the inner wall of the pushing space (12). The end of the screw (31) facing the clamping plate (32) is the pushing end. Tightening the screw (31) can drive the pushing end to push the clamping plate (32) towards the wire to clamp the wire. The pre-compression mechanism (33) passes horizontally through the side wall of the circuit breaker body (1) and is connected to the two guide blocks (34) respectively. The pre-compression mechanism (33) can drive the two guide blocks (34) to move simultaneously along the two second guide grooves (13) toward the direction of approaching or away from the wire, so as to pre-compress or release the wire.

10. The leakage-proof circuit breaker as described in claim 9, characterized in that: The preload mechanism (33) includes a connecting rod (331), two tie rods (332) and two second elastic elements (333); One end of each of the two pull rods (332) passes horizontally through the side wall of the circuit breaker body (1) and is connected to the two guide blocks (34) respectively. The other end is hinged to both ends of the connecting rod (331). The axis of the pull rod (332) is parallel to the axis of the screw (31). Two second elastic elements (333) are respectively placed in the second guide groove (13), and the two second elastic elements (333) are respectively sleeved on the outer wall of the two pull rods (332). One end of the two second elastic elements (333) is respectively connected to the two guide blocks (34), and the other end is respectively connected to the inner wall of the two second guide grooves (13) facing the guide block (34), so that the second elastic elements (333) provide buffering force and rebound force for the guide block (34). The pull rod (332) can drive the guide block (34) and the pressure plate (32) to move toward the terminal hole (11) by the rebound force of the second elastic element (333), so that the pressure plate (32) can pre-press the wire; The side of the clamping plate (32) away from the pull rod (332) is provided with anti-slip texture.

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