Circuit breaker capable of automatically reclosing

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a circuit breaker capable of automatically reclosing, which comprises an automatic reclosing circuit breaker body, and is characterized in that when an inclined plane at the bottom of a trigger block abuts against an inner edge opening of a wiring hole, the trigger block is forced to drive a sliding block to slide along a positioning rod; when sliding blocks slide along positioning rods and sliding grooves, second springs can be compressed, connecting rods can be driven to move together, the connecting rods penetrate through contraction grooves, the contraction grooves are arc-shaped, the connecting rods abut against the contraction grooves to force a rotating disc to rotate, the rotating disc can drive the six sets of connecting rods to contract towards the center of a fixing disc together, and the rotating disc rotates. And the six groups of connecting rods can contract the electric wires passing through the wiring holes, so that one group of electric wires is bound and classified, and the electric wires are directly fixed at the same time, thereby preventing misjudgment of fault positions due to interface looseness caused by mistakenly touching other electric wire groups when the automatic reclosing circuit breaker body is in fault maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker capable of automatically reclosing. Background Art

[0002] An automatic reclosing circuit breaker is an electrical device used to automatically reclose the circuit in the power system. Its main function is to cut off the circuit in time in the event of a short circuit fault or overload in the power system to ensure the safe operation of the power system. At the same time, it can automatically reclose the circuit and restore power supply after the fault is eliminated. An automatic reclosing circuit breaker usually consists of a circuit breaker body, an electromagnetic releaser, a thermal protector, a motor drive device, a controller, etc. When a fault occurs, the electromagnetic releaser or thermal protector will sense abnormal current or excessive temperature, and the trigger signal will be transmitted to the controller. The controller will determine the type of fault according to the preset logic program, and quickly cut off the circuit breaker through the motor drive device. Once the fault is eliminated, the controller will determine whether reclosing is required, and send a signal to the motor drive device to realize the automatic closing operation of the circuit breaker.

[0003] Most circuit breakers are installed in distribution boxes or electrical boxes. In some factories, there are many equipments, and there may be more circuit breakers installed in the electrical cabinet. However, the existing circuit breakers are still tied with cable ties when arranging the wires. It is not convenient to accurately classify a certain circuit breaker module when inspecting and maintaining the circuit breakers. In addition, it is easy to misjudge the fault location if the maintenance tools or construction personnel accidentally pull other wires during inspection. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit breaker capable of automatic reclosing to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a circuit breaker capable of automatic reclosing, comprising an automatic reclosing circuit breaker body, a wiring hole is provided on the top surface of the automatic reclosing circuit breaker body, a protective part is provided above the automatic reclosing circuit breaker body, and the protective part comprises:

[0006] A circular hole, the circular hole is opened on the top surface of the automatic reclosing circuit breaker body, a support rod penetrates and is slidably connected to the inner side of the circular hole, and a pressing plate is fixedly connected to the top surface of the support rod;

[0007] A fixed plate, the fixed plate passes through the pressing plate and is fixedly connected, a rotating plate is rotatably connected to the inner side of the fixed plate, a shrinkage groove is opened on the surface of the rotating plate, a connecting rod passes through and is slidably connected in the shrinkage groove, and a clamping block is passed through and fixedly connected to the connecting rod;

[0008] A slide groove is provided on the bottom surface of the fixed plate, a slider is slidably connected to the inner side of the slide groove, a trigger block is fixedly connected to the bottom surface of the slider, and the pressing plate is pressed downward. When the pressing plate moves downward, the fixed plate is driven to move downward together, and the top surface of the slider is fixedly connected to the bottom surface of the connecting rod.

[0009] Preferably, a positioning rod is fixedly connected to the inner side of the slide groove, and when the inclined surface at the bottom of the trigger block contacts the inner edge of the wiring hole, the trigger block is forced to drive the slider to slide along the positioning rod, and the positioning rod passes through the slider and is slidably connected.

[0010] Preferably, a spring 1 is fixedly connected to the bottom surface of the pressing plate, and one end of the spring 1 away from the pressing plate is fixedly connected to the inner side of the circular hole.

[0011] Preferably, a second spring is fixedly connected to the side of the slider penetrated by the positioning rod, and when the slider slides along the positioning rod and the slide groove, the second spring is compressed and can also drive the connecting rod to move together, and the second spring is fixedly connected to the inner side of the slide groove.

[0012] Preferably, a card block is hinged on the top surface of the automatic reclosing circuit breaker body, and when the pressing plate moves downward, the card block hinged to the automatic reclosing circuit breaker body is rotated outward to a certain extent, and a torsion spring is fixedly connected to the right side of the card block, and the end of the torsion spring away from the card block is fixedly connected to the top surface of the automatic reclosing circuit breaker body. When the pressing plate is moved downward to a certain extent, the torsion spring will push the card block to clamp the notch of the pressing plate, so that the wire group can be fixed.

[0013] Preferably, the number of the contraction grooves is six groups, and the six groups of contraction grooves are respectively arranged in a circular array with the center line of the turntable as the axis, the connecting rod passes through the contraction groove, and the contraction groove is arc-shaped, so that the connecting rod contacts the contraction groove to force the turntable to rotate, and a connecting rod is slidably connected in each group of the contraction grooves.

[0014] Compared with the prior art, the utility model provides a circuit breaker capable of automatic reclosing, which has the following beneficial effects:

[0015] 1. For the circuit breaker capable of automatic reclosing, when the inclined surface at the bottom of the trigger block contacts the inner edge of the wiring hole, the trigger block is forced to drive the slider to slide along the positioning rod. When the slider slides along the positioning rod and the slide groove, the spring 2 is compressed and the connecting rod can be driven to move together. However, the connecting rod passes through the contraction groove, and the contraction groove is arc-shaped, so that the connecting rod contacts the contraction groove and forces the turntable to rotate. The turntable drives the six groups of connecting rods to contract toward the center of the fixed disk together. The six groups of connecting rods contract the wires passing through the wiring hole, so that one group of wires is bound for classification and the wires are directly fixed at the same time, so as to prevent the automatic reclosing circuit breaker body from accidentally touching other wire groups when repairing a fault, causing the interface to loosen and misjudging the fault location.

[0016] 2. The circuit breaker capable of automatic reclosing will push the support rod downward and compress the spring when the pressing plate moves downward, and the notches on both sides of the pressing plate will contact the card block, so that the card block hinged to the automatic reclosing circuit breaker body will rotate outward to a certain extent. When the pressing plate moves downward to a certain extent, the torsion spring will push the card block to clamp the notch of the pressing plate, and the wire group can be fixed while the wire is pulled downward for a certain distance, so that the wires in this section of the distance between the clamp block and the wire interface will not be tightened all the time, thereby increasing the service life of the wires and reducing the probability of loose connection between the wires and the automatic reclosing circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the pressing plate of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of the protection part of the utility model;

[0020] Figure 4 This is an enlarged structural diagram of the fixed disk of the utility model;

[0021] Figure 5 This is an enlarged structural diagram of the bottom of the fixed plate of the utility model;

[0022] Figure 6 It is a schematic diagram of the enlarged structure of the slider of the utility model.

[0023] In the figure: 1. Automatic reclosing circuit breaker body; 2. Protection part; 21. Round hole; 22. Support rod; 23. Pressing plate; 24. Spring 1; 25. Fixed plate; 26. Turntable; 27. Contraction groove; 28. Connecting rod; 29. ​​Clamping block; 210. Sliding block; 211. Sliding groove; 212. Positioning rod; 213. Spring 2; 214. Trigger block; 215. Block; 216. Torsion spring; 3. Wiring hole. DETAILED DESCRIPTION

[0024] like Figure 1-Figure 6 As shown, the utility model provides a technical solution: a circuit breaker capable of automatic reclosing, comprising an automatic reclosing circuit breaker body 1, a wiring hole 3 is opened on the top surface of the automatic reclosing circuit breaker body 1, a protective part 2 is arranged above the automatic reclosing circuit breaker body 1, and the protective part 2 comprises: a circular hole 21, a support rod 22, a pressing plate 23, a spring 1 24, a fixing plate 25, a rotating plate 26, a contraction groove 27, a connecting rod 28, a clamping block 29, a slider 210, a slide groove 211, a positioning rod 212, a spring 2 213, a trigger block 214, a clamping block 215, and a torsion spring 216.

[0025] The circular hole 21 is provided on the top surface of the automatic reclosing circuit breaker body 1, and a support rod 22 is penetrated and slidably connected to the inner side of the circular hole 21, and a pressing plate 23 is fixedly connected to the top surface of the support rod 22, and a fixed disk 25 penetrates the pressing plate 23 and is fixedly connected, and a rotating disk 26 is rotatably connected to the inner side of the fixed disk 25, and a contraction groove 27 is provided on the surface of the rotating disk 26, and a connecting rod 28 is penetrated and slidably connected in the contraction groove 27, and a clamping block 29 is penetrated and fixedly connected to the connecting rod 28, and a sliding groove 211 is provided on the bottom surface of the fixed disk 25, and a slider 210 is slidably connected to the inner side of the sliding groove 211, and a trigger block 214 is fixedly connected to the bottom surface of the slider 210, and the pressing plate 23 is pressed downward, and when the pressing plate 23 moves downward, the fixed disk 25 will move downward together, and the fixed disk 25 will drive the trigger block 214 to move downward together with the slider 210, and the top surface of the slider 210 is fixedly connected to the bottom surface of the connecting rod 28. The inner side of the slide groove 211 is fixedly connected with a positioning rod 212, and when the inclined surface at the bottom of the trigger block 214 contacts the inner edge of the wiring hole 3, the trigger block 214 is forced to drive the slider 210 to slide along the positioning rod 212, and the positioning rod 212 penetrates the slider 210 and is slidably connected. The bottom surface of the pressing plate 23 is fixedly connected with a spring 1 24, and one end of the spring 1 24 away from the pressing plate 23 is fixedly connected to the inner side of the circular hole 21. The side of the slider 210 penetrated by the positioning rod 212 is fixedly connected with a spring 213, and when the slider 210 slides along the positioning rod 212 and the slide groove 211, the spring 213 is compressed and can also drive the connecting rod 28 to move together, and the spring 213 is fixedly connected to the inner side of the slide groove 211. A block 215 is hinged on the top surface of the automatic reclosing circuit breaker body 1. When the pressing plate 23 moves downward, the support rod 22 is pushed downward and the spring 24 is compressed, and the notches on both sides of the pressing plate 23 will contact the block 215, so that the block 215 hinged to the automatic reclosing circuit breaker body 1 rotates outward to a certain extent. A torsion spring 216 is fixedly connected to the right side of the block 215. The end of the torsion spring 216 away from the block 215 is fixedly connected to the top surface of the automatic reclosing circuit breaker body 1. When the pressing plate 23 moves downward to a certain extent, the torsion spring 216 will push the block 215 to clamp the notch of the pressing plate 23. While fixing the wire group, the wires can be pulled downward for a certain distance, so that the wires in this section of the distance between the clamp 29 and the wire interface will not be tightened all the time. There are six groups of contraction grooves 27, and the six groups of contraction grooves 27 are arranged in a circular array with the center line of the turntable 26 as the axis. The connecting rod 28 passes through the contraction groove 27, and the contraction groove 27 is arc-shaped, so that the connecting rod 28 contacts the contraction groove 27 to force the turntable 26 to rotate, and the turntable 26 will drive the six groups of connecting rods 28 to contract toward the center of the fixed disk 25 together. The six groups of connecting rods 28 will contract the wires passing through the wiring hole 3, and a connecting rod 28 is slidably connected in each group of contraction grooves 27.

[0026] Based on the above embodiment, when in use, the wire connected to the automatic reclosing circuit breaker body 1 is passed through the fixed plate 25 and connected to the automatic reclosing circuit breaker body 1 through the wiring hole 3. When the wire is connected, the pressing plate 23 is pressed downward. When the pressing plate 23 moves downward, the fixed plate 25 is driven to move downward together, and the fixed plate 25 is driven by the slider 210 to move downward together. When the inclined surface at the bottom of the trigger block 214 contacts the inner edge of the wiring hole 3, the trigger block 214 is forced to drive the slider 210 to slide along the positioning rod 212, and the slider 210 moves along the positioning rod 212 and the slide groove 2 When the spring 213 slides, the spring 213 is compressed and the connecting rod 28 is driven to move together. However, the connecting rod 28 passes through the contraction groove 27, and the contraction groove 27 is arc-shaped, so that the connecting rod 28 contacts the contraction groove 27 to force the turntable 26 to rotate, and the turntable 26 drives the six groups of connecting rods 28 to contract toward the center of the fixed disk 25. The six groups of connecting rods 28 contract the wires passing through the wiring holes 3, so that one group of wires is bound for classification and the wires are directly fixed, so as to prevent the automatic reclosing circuit breaker body 1 from accidentally touching other wire groups when repairing a fault, causing the interface to loosen and misjudging the fault location.

[0027] When the pressing plate 23 moves downward, it will push the support rod 22 to move downward and compress the spring 24, and the notches on both sides of the pressing plate 23 will contact the block 215, so that the block 215 hinged to the automatic reclosing circuit breaker body 1 will rotate outward to a certain extent. When the pressing plate 23 moves downward to a certain extent, the torsion spring 216 will push the block 215 to clamp the notch of the pressing plate 23, and the wire group can be fixed while the wire is pulled downward for a certain distance, so that the wires in this section of the distance between the clamp 29 and the wire interface will not be tightened all the time, thereby increasing the service life of the wires and reducing the probability of loose connection between the wires and the automatic reclosing circuit breaker body 1.

[0028] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A circuit breaker capable of automatic reclosing, comprising an automatic reclosing circuit breaker body (1), characterized in that: A wiring hole (3) is provided on the top surface of the automatic reclosing circuit breaker body (1), and a protective part (2) is provided above the automatic reclosing circuit breaker body (1), wherein the protective part (2) comprises: A circular hole (21), the circular hole (21) being provided on the top surface of the automatic reclosing circuit breaker body (1), a support rod (22) penetrating the inner side of the circular hole (21) and being slidably connected thereto, and a pressing plate (23) being fixedly connected to the top surface of the support rod (22); A fixed plate (25), the fixed plate (25) passes through the pressing plate (23) and is fixedly connected, a rotating plate (26) is rotatably connected to the inner side of the fixed plate (25), a shrinkage groove (27) is provided on the surface of the rotating plate (26), a connecting rod (28) passes through and is slidably connected to the shrinkage groove (27), and a clamping block (29) is passed through and fixedly connected to the connecting rod (28); A slide groove (211), wherein the slide groove (211) is provided on the bottom surface of the fixed plate (25), a slider (210) is slidably connected to the inner side of the slide groove (211), a trigger block (214) is fixedly connected to the bottom surface of the slider (210), and a top surface of the slider (210) is fixedly connected to the bottom surface of the connecting rod (28).

2. A circuit breaker capable of automatic reclosing according to claim 1, characterized in that: A positioning rod (212) is fixedly connected to the inner side of the sliding groove (211), and the positioning rod (212) passes through the sliding block (210) and is slidably connected.

3. A circuit breaker capable of automatic reclosing according to claim 1, characterized in that: A spring 1 (24) is fixedly connected to the bottom surface of the pressing plate (23), and one end of the spring 1 (24) away from the pressing plate (23) is fixedly connected to the inner side of the circular hole (21).

4. A circuit breaker capable of automatic reclosing according to claim 2, characterized in that: A second spring (213) is fixedly connected to the side of the slider (210) penetrated by the positioning rod (212), and the second spring (213) is fixedly connected to the inner side of the sliding groove (211).

5. The circuit breaker capable of automatic reclosing according to claim 1, characterized in that: A clamping block (215) is hingedly connected to the top surface of the automatic reclosing circuit breaker body (1); a torsion spring (216) is fixedly connected to the right side of the clamping block (215); and one end of the torsion spring (216) away from the clamping block (215) is fixedly connected to the top surface of the automatic reclosing circuit breaker body (1).

6. The circuit breaker capable of automatic reclosing according to claim 1, characterized in that: The number of the contraction grooves (27) is six groups, and the six groups of contraction grooves (27) are arranged in a circular array with the center line of the rotating disk (26) as the axis, and a connecting rod (28) is slidably connected in each group of the contraction grooves (27).

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