A mounting structure for a circuit breaker

Abstract

The utility model discloses a mounting structure of circuit breaker belongs to electrical equipment technical field, including circuit breaker and be used for fixing circuit breaker's mounting panel, the back of circuit breaker is equipped with two can slide slide plate, and the both sides of mounting panel have the vertical flanging, and the side of mounting panel is completed fixed after the slide of slide plate, two slide blocks are located two slide blocks both sides, one driving piece is rotatably arranged on the circuit breaker through the pivot, and the both ends of driving piece are in close contact with slide block when rotating, when the use environment is bad, and the circuit breaker needs to be replaced because of the fault, can make the rotating rod drive driving piece rotation through pulling push rod, make slide plate no longer contact the flanging of mounting panel, can directly disassemble circuit breaker, compared with the mounting structure of existing circuit breaker, need not from one end disassembles circuit breaker one by one, until the replacement circuit breaker that has been damaged, and its replacement work is more convenient and faster.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and more specifically, to an installation structure for a circuit breaker. 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. Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their application range. The boundary between high and low voltage is somewhat blurred. Generally, those above 3kV are referred to as high-voltage electrical appliances. Circuit breakers can be used to distribute electrical energy, infrequently start asynchronous motors, and protect power lines and motors. When they experience serious overload, short circuit, or undervoltage faults, they can automatically disconnect the circuit. Their function is equivalent to a combination of a fuse switch and an over / under-temperature relay. Moreover, after interrupting the fault current, it is generally not necessary to change any parts, and they have been widely used.

[0003] However, in actual use, it still has some drawbacks. For example, in some harsh factory environments such as dampness, dust, and corrosive gases, the mechanical mechanism and contacts of the circuit breaker will experience wear and arc erosion during extremely frequent tripping and closing, which may eventually lead to failure to close normally or poor contact. The existing circuit breakers are fixed by guide rails during installation. The circuit breaker slides into the guide rail from one end and is fastened by bolts. This installation can be used normally under normal conditions, but if the circuit breaker needs to be replaced frequently due to the harsh environment, the disassembly and replacement process is very troublesome. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an installation structure for a circuit breaker, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes a circuit breaker and a mounting plate for fixing the circuit breaker. The back of the circuit breaker is provided with two sliding plates, and the mounting plate has vertical folded edges on both sides. After sliding, the sliding plates abut against the sides of the mounting plate to complete the fixing. Two sliding blocks are slidably provided on the back of the circuit breaker, and two sliding plates are located on both sides of the two sliding blocks. A driving member is rotatably provided on the circuit breaker via a rotating shaft. When the driving member rotates, its two ends abut against the sliding blocks. The circuit breaker is provided with a push rod at the bottom, which is used to drive the component to rotate.

[0006] In a preferred embodiment, both the contact surfaces of the sliding plate and the mounting plate are provided with rubber pads.

[0007] In a preferred embodiment, a rotating rod is provided at the end of the rotating shaft, and one end of the push rod is rotatably connected to the end of the rotating rod.

[0008] In a preferred embodiment, the circuit breaker has a cavity that facilitates the movement of the push rod and the rotating rod.

[0009] In a preferred embodiment, a pressure plate for fixing the end of the push rod is provided at one end of the push rod extending out of the cavity.

[0010] In a preferred embodiment, the driving element consists of two semicircular blocks of the same size but with opposite arc directions, wherein the end of one semicircular block is connected to the center of the other semicircular block.

[0011] In a preferred embodiment, both ends of the two sliding blocks are provided with hook ends, and a spring is hooked between the two hook ends.

[0012] The technical effects and advantages of this utility model are as follows: When the operating environment is harsh and the circuit breaker is prone to failure and needs to be replaced, the push rod can be pulled to make the push rod drive the rotating rod to rotate, thereby driving the driving component to rotate. This causes the spring to contract and drive the sliding blocks on both sides of the driving component to slide towards the center. The sliding blocks no longer exert a pushing force on the sliding plate, and the sliding plate no longer contacts the mounting plate, so the circuit breaker can be directly removed. There is no need to disassemble the circuit breakers one by one from one end until the damaged circuit breaker is replaced. The replacement work is more convenient and faster. Compared with the prior art, it has the effect of improving the disassembly and installation speed of circuit breakers. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the sliding plate of this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the driving component of this utility model.

[0016] Figure 4 This is a schematic diagram of the rotating rod of this utility model.

[0017] Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0018] Figure 6 This is a schematic diagram of the tablet compression structure of this utility model.

[0019] The attached figures are labeled as follows: 1. Circuit breaker; 2. Sliding plate; 3. Mounting plate; 4. Sliding block; 5. Driving component; 6. Spring; 7. Rotating shaft; 8. Hanging end; 9. Push rod; 10. Rotating rod; 11. Cavity; 12. Pressure plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Circuit breakers are used to protect electrical circuits from damage caused by overloads or short circuits. In some harsh environments such as humid, dusty, or corrosive gas environments, the internal mechanical mechanisms and contacts will experience wear and arc erosion during extremely frequent tripping and closing, which may eventually lead to failure to close properly or poor contact. Existing circuit breakers are fixed by guide rails during installation. The circuit breaker slides into the guide rail from one end and is tightened by bolts. This installation works normally under normal conditions. However, if the circuit breaker needs to be replaced frequently due to the harsh environment, the disassembly and replacement process is very troublesome.

[0022] As attached Figure 1 To be continued Figure 5 The installation structure of a circuit breaker shown includes a circuit breaker 1 and a mounting plate 3 for mounting the circuit breaker 1. The mounting plate 3 has vertical folded edges on both sides. The mounting surface of the circuit breaker 1 is provided with two sliding plates 2 that can move up and down. At the same time, the circuit breaker 1 is also provided with a driving component 5 that can drive the sliding plates 2 to move up and down. During installation, the back of the circuit breaker 1 is pressed tightly against the folded edges of the mounting plate 3, and the driving component 5 is rotated to make the two sliding plates 2 press tightly against the sides of the mounting plate 3 to achieve a secure installation.

[0023] To prevent the circuit breaker 1 from easily slipping after installation, rubber pads are provided on the contact surfaces of the sliding plate 2 and the mounting plate 3 to prevent it from easily loosening after installation due to insufficient friction. In application, to prevent it from easily loosening, a friction surface with concave and convex features can also be provided on the contact surfaces of the sliding plate 2 and the mounting plate 3.

[0024] Two sliding blocks 4 are installed on the back of the circuit breaker 1 via a sliding groove. Two sliding plates 2 are also installed on the back of the circuit breaker 1 via a sliding groove. The two sliding blocks 4 are positioned between the two sliding plates 2. The driving component 5 is rotatably mounted on the circuit breaker 1 via a rotating shaft 7, and the driving component 5 is located in the middle of the two sliding blocks 4.

[0025] refer to Figures 2 to 4As shown, the driving component 5 consists of two semi-circular blocks of the same size but with opposite arc directions. The end of one semi-circular block is connected to the center of the other semi-circular block. When the driving component 5 rotates, the distance between the two sliding blocks 4 changes with the rotation of the driving component 5. By increasing the distance between the two sliding blocks 4, the sliding blocks 4 push the two sliding plates 2 to both sides until the two sliding plates 2 respectively abut against the two sides of the mounting plate 3, so that the circuit breaker 1 can be installed on the mounting plate 3.

[0026] To ensure that the two sliding blocks 4 can automatically reset in the initial state, hook ends 9 are provided at both ends of the two sliding blocks 4, and springs 6 are hooked between the two hook ends 9. When the driving component 5 is rotated in the opposite direction, the two sliding blocks 4 can automatically reset by the force of the springs 7. There is also a horizontal surface at both ends of the driving component 5 connected to the arc surface. When the driving component 5 pushes the two sliding blocks 4, the horizontal surface is in close contact with the end face of the two sliding blocks 4 to prevent the driving component 5 from automatically resetting due to the springs 6.

[0027] The rotating shaft 7 for mounting the drive component 5 extends into the interior of the circuit breaker 1, and a rotating rod 10 is provided at the end of the rotating shaft 7. A push rod 9 is rotatably provided at the end of the rotating rod 10. The push rod 9 extends from the interior of the circuit breaker 1 body to the exterior of the circuit breaker 1, so as to facilitate the rotation of the drive component 5 by the push rod 9 and the rotating rod 10. In order to ensure the movement space of the push rod 9 and the rotating rod 10, a cavity 11 is also provided inside the circuit breaker 1 for the movement of the push rod 9 and the rotating rod 10.

[0028] A pressure plate 13 is also provided at the bottom of the circuit breaker 1. The pressure plate 13 is installed to the circuit breaker 1 body by bolts. Specifically, during installation, the push rod 9 drives the rotating rod 10 to rotate, thereby rotating the driving component 5 and fixing the circuit breaker 1 to the mounting plate 3. The pressure plate 13 fixes the push rod 9 in the position on the circuit breaker 1, further preventing the push rod 9 from sliding in case of accidents and ensuring the installation stability of the circuit breaker 1.

[0029] In the case of a circuit breaker installation structure of the present invention, when the operating environment is harsh and the circuit breaker is prone to failure and needs to be replaced, the push rod 9 can be pulled to make the push rod 6 drive the rotating rod 10 to rotate, thereby driving the driving component 5 to rotate. This causes the spring 6 to contract and drive the sliding blocks 4 on both sides of the driving component 5 to slide towards the center. The sliding blocks 4 no longer exert a pushing force on the sliding plate 2, and the sliding plate 2 no longer contacts the mounting plate 3, so the circuit breaker 1 can be directly removed. Compared with the existing circuit breaker installation structure, it is not necessary to disassemble the circuit breaker 1 one by one from one end until the damaged circuit breaker 1 is replaced, making the replacement work more convenient and faster.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circuit breaker mounting structure, comprising a circuit breaker (1) and a mounting plate (3) for fixing the circuit breaker (1), characterized in that: The circuit breaker (1) has two sliding plates (2) on its back. The mounting plate (3) has vertical folded edges on both sides. After sliding, the sliding plates (2) press against the side of the mounting plate (3) to complete the fixation. The circuit breaker (1) has two sliding blocks (4) slidably mounted on its back side. The two sliding plates (2) are located on both sides of the two sliding blocks (4). A driving member (5) is rotatably mounted on the circuit breaker (1) via a rotating shaft (7). When the driving member (5) rotates, its two ends abut against the sliding blocks (4). The circuit breaker (1) is provided with a push rod (9) at the bottom, which is used to drive the component (5) to rotate.

2. The installation structure of a circuit breaker according to claim 1, characterized in that: The contact surfaces of the sliding plate (2) and the mounting plate (3) are both provided with rubber pads.

3. The installation structure of a circuit breaker according to claim 1, characterized in that: A rotating rod (10) is provided at the end of the rotating shaft (7), and one end of the push rod (9) is rotatably connected to the end of the rotating rod (10).

4. The installation structure of a circuit breaker according to claim 3, characterized in that: The circuit breaker (1) has a cavity (11) that facilitates the movement of the push rod (9) and the rotating rod (10).

5. The installation structure of a circuit breaker according to claim 4, characterized in that: The end of the push rod (9) extending out of the cavity (11) is provided with a pressure plate (12) for fixing the end of the push rod (9).

6. The installation structure of a circuit breaker according to claim 1, characterized in that: The driving component (5) is composed of two semi-circular blocks of the same size but with opposite arc directions, with the end of one semi-circular block connected to the center of the other semi-circular block.

7. The installation structure of a circuit breaker according to claim 1, characterized in that: Both ends of the two sliding blocks (4) are provided with hook ends (8), and springs (6) are hooked between the two hook ends (8).

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