Circuit breaker

Abstract

The circuit breaker comprises a circuit breaker body. The circuit breaker body is provided with a first sliding groove, a threaded hole and a terminal hole, wherein the first sliding groove and the threaded hole extend in the first direction, and the terminal hole extends in the second direction. The clamping and fixing component comprises a sliding pressing plate, a first transmission device and a pushing assembly, the sliding pressing plate is arranged in the first sliding groove in a sliding mode in the first direction, the sliding pressing plate is arranged on a screw rod of the screw in a sleeving mode, the pushing assembly comprises a first fixing ring and a plurality of clamping rods, and the first fixing ring is connected with the second side face; the first fixing ring is annularly arranged on the outer side of the terminal hole, the axial direction of the first fixing ring is a second direction, the multiple clamping rods are movably arranged on the first fixing ring, a clamping block is arranged at the end, close to the terminal hole, of each clamping rod, and the sliding pressing plate is connected with the end, away from the terminal hole, of each clamping rod through a first transmission device. Therefore, the circuit breaker according to the present invention can conveniently fix the wire and prevent the wire from loosening.

Description

Technical Field

[0001] This invention relates to the field of overload protection technology, and specifically to a circuit breaker. Background Technology

[0002] In related technologies, circuit breakers, as overload protection mechanisms, typically require stripping an appropriate length of insulation and loosening the terminal screws when connecting to electrical wires. The prepared wire is then inserted straight into the terminal hole, ensuring all copper wires are inside and none are exposed. The screws are then tightened, using their pressure to secure the wire firmly to the metal clips. During operation, the interior space of distribution boxes is usually quite narrow, with densely packed wires. During subsequent inspection or maintenance, operators using tools or their bare hands are highly susceptible to accidentally touching nearby wires. Even a small lateral pull or external impact can generate an instantaneous pulling force exceeding the static friction provided by the terminal screws, causing the wire to gradually loosen or even completely detach from the clamp, leading to safety hazards such as poor contact and arcing. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the related art. To this end, embodiments of the present invention provide a circuit breaker.

[0004] The circuit breaker of this invention includes: The circuit breaker body has a first sliding groove and a threaded hole extending in a first direction and a terminal hole extending in a second direction. A screw is threadedly connected to the threaded hole to fix a wire inserted into the terminal hole. The first sliding groove is formed on a first side and a second side of the circuit breaker body. The first sliding groove communicates with the threaded hole. The terminal hole is formed on the second side. The first direction is perpendicular to the second direction. A clamping component includes a sliding pressure plate, a first transmission device, and a pushing assembly. The sliding pressure plate is slidably disposed in a first sliding groove along a first direction. The sliding pressure plate is sleeved on the screw rod. The screw can drive the sliding pressure plate to move along the first direction in a direction adjacent to the terminal hole. The pushing assembly includes a first fixing ring and a plurality of clamping rods. The first fixing ring is connected to a second side and is arranged around the outside of the terminal hole. The axial direction of the first fixing ring is the second direction. The plurality of clamping rods are movably disposed on the first fixing ring. Each clamping rod has a clamping block at one end adjacent to the terminal hole. The sliding pressure plate is connected to the end of each clamping rod away from the terminal hole through the first transmission device. When the sliding pressure plate moves along the first direction in a direction adjacent to the terminal hole, the first transmission device can drive the plurality of clamping rods to move and cause the clamping blocks on the clamping rods to move towards the direction adjacent to the threaded hole, so as to clamp the wire located in the first fixing ring.

[0005] Therefore, the circuit breaker according to embodiments of the present invention facilitates the securing of wires and prevents them from coming loose.

[0006] In some embodiments, the first transmission device includes a swing arm and a turntable, the turntable being rotatably connected to the first fixed ring, the two ends of the swing arm being hinged to one end of the sliding pressure plate adjacent to the second side and the outer peripheral surface of the turntable, respectively, the extension direction of the rotation axis of the turntable and the extension direction of the rotation axis of the two ends of the swing arm are both the second direction, the turntable having a plurality of first guide grooves spaced apart in the circumferential direction, the first guide grooves penetrating the turntable along the second direction, and at least a portion of the first guide grooves being located outside the first fixed ring; The first fixed ring has a plurality of movable holes in its circumferential direction. The movable holes penetrate the outer and inner ring surfaces of the first fixed ring. The plurality of clamping rods are movably disposed in the plurality of movable holes in the first fixed ring in a corresponding manner. The end of each clamping rod away from the terminal hole is connected to a first guide post. The first guide post extends along the second direction. The plurality of first guide posts are correspondingly fitted into the plurality of first guide grooves of the turntable.

[0007] In some embodiments, the first guide groove is an arc-shaped groove extending along an arc, the first outlet groove has a preset size in the radial direction of the turntable, and the first guide post is movably disposed in the corresponding first guide groove.

[0008] The circuit breaker of this embodiment further includes a sealing component, which includes a second fixing ring and a plurality of sealing plates. The second fixing ring is connected to the first fixing ring and is located on the side of the first fixing ring facing away from the second side. The second fixing ring is disposed around the outside of the terminal hole, and the axial direction of the second fixing ring is the second direction. The plurality of sealing plates are movably disposed on the second fixing ring such that the plurality of sealing plates have a first position and a second position. In the first position, the plurality of sealing plates are adjacent to each other and define a sealing hole for receiving wires. In the second position, the plurality of sealing plates are far apart from each other.

[0009] In some embodiments, the sealing component further includes a limiting component and a guiding component. The limiting component includes multiple limiting blocks, each of which is connected to a multiple sealing clamps in a corresponding manner. The second fixing ring has multiple second sliding grooves on the side opposite to the first fixing ring, and the multiple limiting blocks are slidably disposed in the multiple second sliding grooves in a corresponding manner. The guide assembly includes a rotating cover and a plurality of second guide posts. The rotating cover is rotatably connected to the second fixing ring. The rotation axis of the rotating cover extends in the second direction. The rotating cover has a central through hole and a plurality of second guide grooves passing through it. The plurality of second guide grooves are circumferentially spaced outside the central through hole. The plurality of second guide posts are correspondingly fitted into the plurality of second guide grooves. The plurality of second guide posts are correspondingly connected to the plurality of sealing clamps. The plurality of sealing clamps are located between the rotating cover and the second fixing ring.

[0010] In some embodiments, the second guide groove extends radially along the rotating cover, the second guide post is movably disposed within the corresponding second guide groove, and the rotating cover is connected to the turntable via a plurality of connecting blocks.

[0011] The circuit breaker in this embodiment of the invention further includes a reset assembly, which includes a telescopic rod, a spring, and a stop bar. The stop bar is disposed in the first sliding groove. The sliding pressure plate is located inside the stop bar in the first direction. The telescopic rod and the spring are both located inside the sliding pressure plate in the first direction. The telescopic part of the telescopic rod is connected to the sliding pressure plate. The fixed part of the telescopic rod is disposed in the circuit breaker body. The spring is sleeved on the outside of the telescopic rod. The spring abuts against the sliding pressure plate to drive the sliding pressure plate to move in the first direction away from the threaded hole.

[0012] The circuit breaker of this embodiment further includes a prompting component, which includes a sound output assembly. The sound output assembly includes a fixed plate and a plurality of tone combs. The plurality of tone combs are fixed on the fixed plate. When the screw is installed to the preset installation position of the threaded hole in the first direction, the screw drives the sliding pressure plate to contact the prompting component in the first direction, so as to drive the tone combs to vibrate and emit a prompting sound.

[0013] In some embodiments, the prompting component includes an elastic metal strip and two sound-emitting components. The fixing plate of one of the two sound-emitting components is connected to the elastic metal strip, and the other of the two sound-emitting components is fixed in the circuit breaker body. The plurality of sound comb teeth of the two sound-emitting components are arranged in a cross order. The elastic metal strip is located on the side of the sliding pressure plate adjacent to the threaded hole in the first direction. The elastic metal strip is disposed opposite to the side of the sliding pressure plate. The elastic metal strip has a protrusion. The side of the sliding pressure plate has a positioning hole that mates with the protrusion. When the screw drives the sliding pressure plate to move in the first direction and connect with the elastic metal strip, the elastic metal strip undergoes elastic deformation, causing the protrusion on it to mate with the positioning hole, so as to drive the two sound-emitting components to emit a prompting sound.

[0014] In some embodiments, there are multiple threaded holes and multiple terminal holes, the multiple threaded holes are spaced apart in a third direction, the multiple terminal holes are spaced apart in the third direction, and any two of the first direction, the second direction and the third direction are perpendicular to each other. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a circuit breaker according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of a single clamping component of a circuit breaker according to an embodiment of the present invention.

[0017] Figure 3 This is a schematic diagram of a sliding pressure plate according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of a reset component according to an embodiment of the present invention.

[0019] Figure 5 yes Figure 4 Enlarged view of point A.

[0020] Figure 6 This is a schematic diagram of a clamping component according to an embodiment of the present invention.

[0021] Figure 7This is a schematic diagram of a pushing component according to an embodiment of the present invention.

[0022] Figure 8 This is a schematic diagram of a guide component according to an embodiment of the present invention.

[0023] Figure 9 This is a schematic diagram of a sealing clamp according to an embodiment of the present invention.

[0024] Figure 10 This is a schematic diagram of a prompting component according to an embodiment of the present invention.

[0025] Figure 11 yes Figure 4 Enlarged view of point B.

[0026] Figure label: 10. Circuit breaker body; 11. Sliding pressure plate; 12. Swing arm; 13. Turntable; 14. Reset assembly; 141. Telescopic rod; 142. Spring; 143. Stop bar; 15. Push assembly; 151. First fixing ring; 152. Clamping rod; 153. First guide post; 16. Clamping block; 20. Second fixing ring; 21. Limiting assembly; 211. Second sliding groove; 212. Limiting block; 22. Sealing clamp; 23. Guide assembly; 231. Second guide post; 232. Rotating cover; 233. Connecting block; 30. Elastic metal strip; 31. Protrusion; 32. Positioning hole; 33. Sound output assembly; 331. Fixing plate; 332. Comb teeth. Detailed Implementation

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The circuit breaker according to an embodiment of the present invention is described below with reference to the accompanying drawings. Figures 1 to 11 As shown, the circuit breaker according to an embodiment of the present invention includes a circuit breaker body 10, a clamping component, a sealing component, a reset assembly 14, and a notification component.

[0029] The circuit breaker body 10 has a first sliding groove and a threaded hole extending in a first direction, and a terminal hole extending in a second direction. A screw is threaded into the threaded hole to secure a wire inserted into the terminal hole. The first sliding groove is formed on a first side and a second side of the circuit breaker body 10, communicating with the threaded hole. The terminal hole is formed on the second side, and the first direction is perpendicular to the second direction. Specifically, after the screw is tightened in the threaded hole, the wiring terminal inside the circuit breaker body 10 secures the wire inserted into the terminal hole. The first side and the second side are perpendicular. The first side is perpendicular to the first direction, and the second side is perpendicular to each other. The threaded hole is located outside the first sliding groove, with a portion of the opening of the first sliding groove located on the first side and a portion of the opening of the first sliding groove located on the second side.

[0030] In some embodiments, there are multiple threaded holes and terminal holes. The threaded holes are spaced apart in a third-direction upward direction, and the terminal holes are also spaced apart in a third-direction upward direction. Any two of the first, second, and third directions are perpendicular to each other. Specifically, each pair of threaded holes and terminal holes mates with a clamping component, a sealing component, a reset assembly 14, and a prompting component. For example, the first sliding groove and threaded hole extend in the front-rear direction, and the terminal hole extends in the vertical direction. The first side is the front side of the circuit breaker body 10, and the second side is the lower side of the circuit breaker body 10. The first sliding groove and threaded hole are located on the front side of the circuit breaker body 10, and the terminal hole is located on the lower side of the circuit breaker body 10. The multiple threaded holes are spaced apart in the left-right direction, and the multiple terminal holes are also spaced apart in the left-right direction. like Figure 6 and Figure 7 As shown, the clamping component includes a sliding pressure plate 11, a first transmission device, and a pushing assembly 15. The sliding pressure plate 11 is slidably disposed within the first sliding groove along a first direction, and the shape and size of the sliding pressure plate 11 are adapted to the shape and size of the first sliding groove. For example, the sliding pressure plate 11 consists of a hollow ring, an arc-shaped protrusion protruding outward from the center, and a vertical connecting plate, and the first sliding groove has an arc-shaped groove that mates with the positioning protrusion. Furthermore, the opening of the ring is larger than the diameter of the internal threaded hole of the circuit breaker body 10.

[0031] The sliding pressure plate 11 is sleeved on the screw rod, and the sliding ring of the sliding pressure plate 11 is sleeved on the screw rod. The inner diameter of the sliding ring is smaller than the diameter of the screw head. The screw can drive the sliding pressure plate 11 to move in a first direction along the direction adjacent to the terminal hole. For example, the screw can drive the sliding pressure plate 11 to move backward.

[0032] The pushing assembly 15 includes a first fixing ring 151 and a plurality of clamping rods 152. The first fixing ring 151 is connected to the second side and is arranged around the outside of the terminal hole. The axial direction of the first fixing ring 151 is the second direction.

[0033] Multiple clamping rods 152 are movably mounted on a first fixing ring 151. Each clamping rod 152 (radially) has a clamping block 16 at one end adjacent to the terminal hole. A sliding pressure plate 11 is connected to the end of each clamping rod 152 (radially) away from the terminal hole via a first transmission device. When the sliding pressure plate 11 moves in a first direction along the direction adjacent to the terminal hole, the first transmission device can drive the multiple clamping rods 152 to move, causing the clamping blocks 16 on the clamping rods 152 to move towards the direction adjacent to the threaded hole, so as to clamp the wire located inside the first fixing ring 151. That is, when the sliding pressure plate 11 moves towards the direction adjacent to the threaded hole, the clamping blocks 16 on the multiple clamping rods 152 can be driven by the first transmission device to clamp the wire inserted into the center hole and terminal hole of the first fixing ring 151. This achieves the effect of clamping and fixing the wire inserted into the circuit breaker 10, thereby preventing it from being pulled out. For example, the axial direction of the first fixing ring 151 is vertical.

[0034] like Figure 6 and Figure 7 As shown, in some embodiments, the first transmission device includes a swing arm 12 and a turntable 13. The turntable 13 is rotatably connected to a first fixed ring 151. Both ends of the swing arm 12 are hinged to one end of the sliding pressure plate 11 adjacent to the second side surface and the outer peripheral surface of the turntable 13, respectively. The extension direction of the rotation axis of the turntable 13 and the extension direction of the rotation axes at both ends of the swing arm 12 are both in the second direction. The turntable 13 has a plurality of first guide grooves spaced apart in the circumferential direction. The first guide grooves penetrate the turntable 13 along the second direction, and at least a portion of the first guide grooves is located outside the first fixed ring 151. For example, the turntable 13 is sleeved on at least the outer side covered by the first fixed ring 151.

[0035] The first fixed ring 151 has multiple movable holes circumferentially, which penetrate the outer and inner ring surfaces of the first fixed ring 151. Multiple clamping rods 152 are movably disposed within these movable holes, one-to-one corresponding to each other. The end of each clamping rod 152 away from the terminal hole is connected to a first guide post 153, which extends along a second direction. These first guide posts 153 are correspondingly fitted into multiple first guide grooves on the turntable 13. Thus, when the turntable 13 rotates, the multiple first guide grooves can drive the multiple first guide posts 153 to move, thereby causing the clamping blocks 16 on the clamping rods 152 to clamp or release the wires. For example, the extending direction of the first guide post 153, the extending direction of the rotation axis of the turntable 13, and the extending direction of the rotation axes at both ends of the swing arm 12 are all vertical.

[0036] like Figure 6 and Figure 7As shown, in some embodiments, the first guide groove is an arc-shaped groove extending along an arc, the first outlet groove has a preset size in the radial direction of the turntable 13, and the first guide post 153 is movably disposed in the corresponding first guide groove. Thus, when the turntable 13 rotates, the wall surface of the first guide groove drives the first guide post 153 to move radially, thereby causing the clamping block 16 to clamp or release the wire. For example, the inner ring surface of the first fixing ring 151 has a receiving groove that mates with the clamping block 16. When the clamping block 16 is housed in this receiving groove, the inner ring surface of the first fixing ring 151 will not have a protruding structure, to avoid damaging the wire's insulation when the wire is inserted. The inner surface of the clamping block 16 is concave. As another example, there are three first guide grooves.

[0037] The clamping component is a component that is fixed by clamping. By clamping, the lower part of the wire connection can be clamped and fixed. After the wire is inserted into the circuit breaker body 10, screws are used to fix the wire conductor. The sliding pressure plate 11 is a sliding structure. When the screw is turned, the screw nut can apply a pushing force to the sliding pressure plate 11, so that the sliding pressure plate 11 can move backward. The movement of the sliding pressure plate 11 can in turn cause the swing arm 12 to generate a pushing force on the turntable 13. The turntable 13 has three arc-shaped grooves inside, which can guide the clamping block 16, so that the clamping block 16 can clamp the outer sheath of the wire conductor. When the clamping block 16 clamps the wire, even if a pulling force is generated, the wire will not easily fall off. At the same time, there are three clamping blocks 16, which are evenly distributed to ensure the stability of the clamping.

[0038] like Figure 8 and Figure 9 As shown, the sealing component includes a second retaining ring 20 and multiple sealing clamps 22.

[0039] The second fixing ring 20 is connected to the first fixing ring 151. The second fixing ring 20 is located on the side of the first fixing ring 151 facing away from the second side. The second fixing ring 20 is arranged around the outside of the terminal hole, and the axial direction of the second fixing ring 20 is the second direction. For example, the second fixing ring 20 is located below the first fixing ring 151, and the axial direction of the second fixing ring 20 is the up-down direction.

[0040] Multiple sealing plates 22 are movably disposed on the second fixing ring 20 such that the multiple sealing plates 22 have a first position and a second position. In the first position, the multiple sealing plates 22 are adjacent to each other and define a sealing hole for receiving wires. The sealing hole is a circular hole, and the sealing plates 22 can cover the central hole of the second fixing ring 20, thereby reducing dust entry and further securing the wires. In the second position, the multiple sealing plates 22 are far apart from each other.

[0041] like Figure 8 and Figure 9 As shown, in some embodiments, the sealing component further includes a limiting component 21 and a guiding component 23. The limiting component 21 includes multiple limiting blocks 212, each corresponding to a multiple sealing clamps 22. The second fixing ring 20 has multiple second sliding grooves 211 on its side facing away from the first fixing ring 151, and the multiple limiting blocks 212 are slidably disposed within these grooves. This allows the limiting blocks 21 to limit the movement trajectory of the sealing clamps 22, thereby stabilizing the sliding of the sealing clamps 22 and enabling them to move stably.

[0042] The guide assembly 23 includes a rotating cover 232 and a plurality of second guide posts 231. The rotating cover 232 is rotatably connected to the second fixed ring 20, and the rotation axis of the rotating cover 232 extends in a second direction. The rotating cover 232 has a central through hole and a plurality of second guide grooves passing through it, which are circumferentially spaced outside the central through hole. The plurality of second guide posts 231 are correspondingly fitted into the plurality of second guide grooves and are correspondingly connected to a plurality of sealing clamps 22, which are located between the rotating cover 232 and the second fixed ring 20. Thus, after the rotating cover 232 rotates, the plurality of second guide posts 231 can be used to move the plurality of sealing clamps 22 between a first position and a second position. For example, there are six second guide grooves connected sequentially at their ends, and there are six second guide grooves, six second guide posts 231, and six limiting blocks 212.

[0043] like Figure 8 and Figure 9 As shown, in some embodiments, the second guide groove extends radially along the rotating cover 232, and the second guide post 231 is movably disposed within the corresponding second guide groove. The rotating cover 232 is connected to the turntable 13 via multiple connecting blocks 233. Thus, when the turntable 13 rotates, it can drive the rotating cover 232 to rotate, allowing the sealing component and clamping component to simultaneously clamp the wire. It should be noted that since the second guide post 231 is embedded within the elongated second guide groove inside the rotating cover 232, the position of the second guide groove changes when the rotating cover 232 rotates following the rotation of the arc-groove turntable 13, i.e., it rotates. The rotating second guide groove causes the position of the second guide post 231 within the hexagonal second sliding groove 211 to change. When the positions of the second guide post 231 and the limiting block 212 change, the sealing clamp 22 will synchronously translate due to the limiting and guiding mechanism. This synchronous translation of the sealing clamp 22 achieves sealing and fixation.

[0044] The sealing component, based on the initial clamping and fixing, further reinforces the wire while providing a sealing function. The fixed second fixing ring 20 guides the translation of the sealing clamp 22 through the internal second sliding groove 211211. Since the inner end of the sealing clamp 22 is not a traditional pointed tip but has a certain curvature, the combination of six sealing clamps 22 allows the sealing clamp 22 to leave a through hole of a certain size on the inner side after closing. This through hole can clamp the surface of the wire and fit against the surface of the wire, so that the wire can achieve a sealing effect after being further reinforced and fixed. The sealed inlet and outlet can prevent insects from entering, thus avoiding the situation where the circuit breaker body 10 cannot operate normally due to insects crawling in.

[0045] like Figure 4 and Figure 5 As shown, the reset assembly 14 includes a telescopic rod 141, a spring 142, and a stop bar 143. The stop bar 143 is disposed in the first sliding groove, and the sliding pressure plate 11 is located inside the stop bar 143 in the first direction. Both the telescopic rod 141 and the spring 142 are located inside the sliding pressure plate 11 in the first direction. The telescopic part of the telescopic rod 141 is connected to the sliding pressure plate 11, and the fixed part of the telescopic rod 141 is disposed inside the circuit breaker body 10. The spring 142 is sleeved on the outside of the telescopic rod 141, and the spring 142 abuts against the sliding pressure plate 11 to drive the sliding pressure plate 11 to move in the first direction away from the threaded hole. Thus, when the screw is unscrewed from the threaded hole and the sliding pressure plate 11 is not limited, the spring 142 can use its elastic force to drive the sliding pressure plate 11 to move towards the adjacent stop bar 143, thereby causing the sliding pressure plate 11 to drive the turntable 13 to rotate in the opposite direction, so that the sealing component and the clamping component can be unlocked simultaneously.

[0046] Spring 142 is sleeved on the outside of telescopic rod 141. In cooperation with telescopic rod 141, it provides elastic force to sliding pressure plate 11. With the limiting cooperation of stop bar 143, the initial state of sliding pressure plate 11 is located behind stop bar 143. When the screw is turned, spring 142 is compressed, thereby providing squeezing force for subsequent reset of sliding pressure plate 11.

[0047] When using the circuit breaker according to the embodiment of the present invention, the insulation of the wire is first removed, and the screws of the circuit breaker body 10 are loosened. When the screws are loosened, they will move forward, and the spring 142 will release its elastic force. The released elastic force will cause the sliding pressure plate 11 to move forward, and the telescopic rod 141 will extend. When the sliding pressure plate 11 moves to its limit position, the front of the sliding pressure plate 11 will be in contact with the back of the stop bar 143, and the next operation can be performed.

[0048] The prepared wire is inserted into the circuit breaker body 10 from below. When the wire is inserted into the terminal hole of the circuit breaker body 10, its insulation will pass through the inside of the clamp 16. When the wire is inserted to its limit position, the screw is tightened. As the screw moves into the circuit breaker body 10, it will apply a pushing force to the sliding pressure plate 11. At this time, the sliding pressure plate 11 begins to move backward. When the sliding pressure plate 11 is pushed, it will compress the spring 142, causing the telescopic rod 141 to shorten and gradually return to its original position. During the backward movement of the sliding pressure plate 11, its vertical connecting plate will push the swing arm 12. Since the front end of the swing arm 12 is... The push causes the end of the swing arm 12 to push the turntable 13 to rotate. When the turntable 13 rotates, the three arc grooves inside it will change position. When the arc grooves rotate and change position, the position of the clamping rod 152 will change through the guidance of the first guide post 153. When the swing arm 12 is pushed, the first guide post 153 will move from the outermost side of the arc groove of the turntable 13 to the innermost side. At the same time, the clamping rod 152 will move inward and push the clamping block 16 to move inward. When the screw is tightened, the sliding pressure plate 11 is placed at the deepest part of the slot on the front of the circuit breaker 10. At the same time, the clamping block 16 is tightly clamped on the insulation surface of the wire, so that the wire is fixed. In summary, by using the movement of the sliding pressure plate 11 to apply a pushing force to the swing arm 12 during the process of tightening the screw to fix the wire conductor, the arc groove turntable 13 can be rotated. Under the guidance of the arc groove, the clamping block 16 is pushed by the clamping rod 152 and moves inward to clamp the wire insulation, thereby fixing the wire. The fixed wire will not loosen due to the pulling force, thus improving the stability of the wire fixing.

[0049] like Figure 10 and Figure 11 As shown, the prompting component includes a sound-emitting assembly 33. The sound-emitting assembly 33 includes a fixing plate 331 and multiple tone combs 332. The tone combs 332 are fixed to the fixing plate 331. When the screw is installed in the preset installation position of the threaded hole in the first direction, the screw drives the sliding pressure plate 11 to contact the prompting component in the first direction, thereby causing the tone combs 332 to vibrate and emit a prompting sound. For example, when the screw is installed in the preset installation position of the threaded hole in the first direction, the sliding pressure plate 11 can directly agitate the multiple tone combs 332 to vibrate and emit a sound, thus reminding the operator that the screw has been installed correctly. Alternatively, the sound-emitting assembly 33 may be located behind the tone combs 332, with the multiple tone combs 332 spaced apart in the front-to-back direction.

[0050] like Figure 10 and Figure 11 As shown, in some embodiments, the prompting component includes a resilient metal strip 30 and two sound-emitting assemblies 33.

[0051] One of the two sound-emitting components 33 has a fixing plate 331 connected to an elastic metal strip 30, and the other of the two sound-emitting components 33 is fixed inside the circuit breaker body 10. Multiple tone combs 332 of the two sound-emitting components 33 are arranged in a crisscross pattern. The elastic metal strip 30 is located on the side of the sliding pressure plate 11 adjacent to the threaded hole in the first direction. The elastic metal strip 30 is positioned opposite to the side of the sliding pressure plate 11. The elastic metal strip 30 has a protrusion 31, and the side of the sliding pressure plate 11 has a positioning hole 32 that mates with the protrusion 31. When the screw drives the sliding pressure plate 11 to move in the first direction and connect with the elastic metal strip 30, the elastic metal strip 30 undergoes elastic deformation, causing the protrusion 31 to engage with the positioning hole 32, thereby driving the two sound-emitting components 33 to emit a warning tone. For example, the protrusion 31 is a hemispherical structure.

[0052] The included indicator component, as an auxiliary structure, addresses the problem of over-tightening screws damaging the threads and affecting the reusability of the circuit breaker 10. Its main function is to provide a torque indication when the screw is tightened to its limit, preventing thread damage from over-tightening. Since the positioning hole 32 is located on the top of the sliding ring of the sliding pressure plate 11, it can move with the sliding pressure plate 11. Due to its elasticity, the elastic metal strip 30 initially contacts the sliding pressure plate 11 at the protrusion 31 of the hemispherical structure, causing it to move towards the circuit breaker. The body 10 deforms internally. When the protrusion 3 of the hemispherical structure aligns with the positioning hole 32, the elastic metal strip 30 releases its elasticity, causing the protrusion 3 of the hemispherical structure to press against the inside of the positioning hole 32. After the protrusion 3 of the hemispherical structure is embedded inside the positioning hole 32, the screw is tightened to its limit. The embedding will create a knocking sensation, similar to the feel of tightening a screw on a cover plate. When the two come into contact, they will bend and emit a warning sound. The resistance rod formed by the protrusion 31 and the positioning hole 32 can further enhance the clarity of the warning and prevent the screw from being over-tightened.

[0053] The circuit breaker according to an embodiment of the present invention, through its clamping component, utilizes the sliding of the sliding pressure plate, the swinging of the swing arm, and the rotation of the turntable to convert the rotation of the arc groove into the inward sliding of the clamping block. This allows the inserted wire to be firmly fixed by clamping, preventing the wire from being pulled out of the terminal even in the event of accidental contact, thus achieving the effect of reinforcing the wire and preventing it from loosening. Through the sealing component, using the cooperation of the hexagonal second sliding groove and the rectangular limiting block with the second guide post and the rotating cover, when the wire is clamped and fixed, the lower part of the wire is further reinforced and fixed by the sealing clamp. Simultaneously, it achieves sealing while reinforcing, preventing insects from entering the circuit breaker and affecting operational stability, thus achieving the effects of reinforcing the wire and sealing the circuit breaker. Through the provided indicator component, when tightening screws, the combined tactile feedback and audible alert remind the user when the screw is tightened to its limit, preventing over-tightening and further avoiding thread damage. Therefore, the circuit breaker according to an embodiment of the present invention facilitates the fixing of wires and prevents them from loosening.

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] In this invention, 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," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the 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.

[0059] 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 changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A circuit breaker, characterized in that, include: The circuit breaker body has a first sliding groove and a threaded hole extending in a first direction and a terminal hole extending in a second direction. A screw is threadedly connected to the threaded hole to fix a wire inserted into the terminal hole. The first sliding groove is formed on a first side and a second side of the circuit breaker body. The first sliding groove communicates with the threaded hole. The terminal hole is formed on the second side. The first direction is perpendicular to the second direction. A clamping component includes a sliding pressure plate, a first transmission device, and a pushing assembly. The sliding pressure plate is slidably disposed in a first sliding groove along a first direction. The sliding pressure plate is sleeved on the screw rod. The screw can drive the sliding pressure plate to move along the first direction in a direction adjacent to the terminal hole. The pushing assembly includes a first fixing ring and a plurality of clamping rods. The first fixing ring is connected to a second side and is arranged around the outside of the terminal hole. The axial direction of the first fixing ring is the second direction. The plurality of clamping rods are movably disposed on the first fixing ring. Each clamping rod has a clamping block at one end adjacent to the terminal hole. The sliding pressure plate is connected to the end of each clamping rod away from the terminal hole through the first transmission device. When the sliding pressure plate moves along the first direction in a direction adjacent to the terminal hole, the first transmission device can drive the plurality of clamping rods to move and cause the clamping blocks on the clamping rods to move towards the direction adjacent to the threaded hole, so as to clamp the wire located in the first fixing ring.

2. The circuit breaker according to claim 1, characterized in that, The first transmission device includes a swing arm and a turntable. The turntable is rotatably connected to the first fixed ring. The two ends of the swing arm are respectively hinged to one end of the sliding pressure plate adjacent to the second side and the outer peripheral surface of the turntable. The extension direction of the rotation axis of the turntable and the extension direction of the rotation axis of the two ends of the swing arm are both the second direction. The turntable has a plurality of first guide grooves spaced apart in the circumferential direction. The first guide grooves penetrate the turntable along the second direction. At least a portion of the first guide grooves is located outside the first fixed ring. The first fixed ring has a plurality of movable holes in its circumferential direction. The movable holes penetrate the outer and inner ring surfaces of the first fixed ring. The plurality of clamping rods are movably disposed in the plurality of movable holes in the first fixed ring in a corresponding manner. The end of each clamping rod away from the terminal hole is connected to a first guide post. The first guide post extends along the second direction. The plurality of first guide posts are correspondingly fitted into the plurality of first guide grooves of the turntable.

3. The circuit breaker according to claim 2, characterized in that, The first guide groove is an arc-shaped groove extending along an arc, the first outlet groove has a preset size in the radial direction of the turntable, and the first guide post is movably disposed in the corresponding first guide groove.

4. The circuit breaker according to claim 2, characterized in that, It also includes a sealing component, which includes a second fixing ring and a plurality of sealing clamps. The second fixing ring is connected to the first fixing ring and is located on the side of the first fixing ring facing away from the second side. The second fixing ring is arranged around the outside of the terminal hole, and the axis of the second fixing ring is the second direction. The plurality of sealing clamps are movably disposed on the second fixing ring such that the plurality of sealing clamps have a first position and a second position. In the first position, the plurality of sealing clamps are adjacent to each other and define a sealing hole for receiving wires. In the second position, the plurality of sealing clamps are far apart from each other.

5. The circuit breaker according to claim 4, characterized in that, The sealing component also includes a limiting component and a guiding component. The limiting component includes multiple limiting blocks, each of which is connected to a multiple sealing clamps in a corresponding manner. The second fixing ring has multiple second sliding grooves on the side opposite to the first fixing ring, and the multiple limiting blocks are slidably disposed in the multiple second sliding grooves in a corresponding manner. The guide assembly includes a rotating cover and a plurality of second guide posts. The rotating cover is rotatably connected to the second fixing ring. The rotation axis of the rotating cover extends in the second direction. The rotating cover has a central through hole and a plurality of second guide grooves passing through it. The plurality of second guide grooves are circumferentially spaced outside the central through hole. The plurality of second guide posts are correspondingly fitted into the plurality of second guide grooves. The plurality of second guide posts are correspondingly connected to the plurality of sealing clamps. The plurality of sealing clamps are located between the rotating cover and the second fixing ring.

6. The circuit breaker according to claim 5, characterized in that, The second guide groove extends radially along the rotating cover, and the second guide post is movably disposed within the corresponding second guide groove. The rotating cover is connected to the turntable via multiple connecting blocks.

7. The circuit breaker according to claim 1, characterized in that, It also includes a reset assembly, which includes a telescopic rod, a spring, and a stop bar. The stop bar is disposed in the first sliding groove. The sliding pressure plate is located inside the stop bar in the first direction. The telescopic rod and the spring are both located inside the sliding pressure plate in the first direction. The telescopic part of the telescopic rod is connected to the sliding pressure plate. The fixed part of the telescopic rod is disposed in the circuit breaker body. The spring is sleeved on the outside of the telescopic rod. The spring abuts against the sliding pressure plate to drive the sliding pressure plate to move in the first direction away from the threaded hole.

8. The circuit breaker according to claim 7, characterized in that, It also includes a prompting component, which includes a sound output assembly. The sound output assembly includes a fixed plate and multiple sound comb teeth. The multiple sound comb teeth are fixed on the fixed plate. When the screw is installed to the preset installation position of the threaded hole in the first direction, the screw drives the sliding pressure plate to contact the prompting component in the first direction, so as to drive the sound comb teeth to vibrate and emit a prompting sound.

9. The circuit breaker according to claim 8, characterized in that, The prompting component includes an elastic metal strip and two sound-emitting components. The fixing plate of one of the two sound-emitting components is connected to the elastic metal strip, and the other of the two sound-emitting components is fixed in the circuit breaker body. The multiple sound comb teeth of the two sound-emitting components are arranged in a cross order. The elastic metal strip is located on the side of the sliding pressure plate adjacent to the threaded hole in the first direction. The elastic metal strip is arranged opposite to the side of the sliding pressure plate. The elastic metal strip has a protrusion. The side of the sliding pressure plate has a positioning hole that mates with the protrusion. When the screw drives the sliding pressure plate to move in the first direction and connect with the elastic metal strip, the elastic metal strip undergoes elastic deformation, causing the protrusion on it to mate with the positioning hole, so as to drive the two sound-emitting components to emit a prompting sound.

10. The circuit breaker according to any one of claims 1-9, characterized in that, There are multiple threaded holes and multiple terminal holes, with the multiple threaded holes spaced apart in a third direction and the multiple terminal holes spaced apart in a third direction, and any two of the first direction, the second direction and the third direction are perpendicular to each other.

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