Circuit breaker with protection structure

Abstract

The utility model discloses a circuit breaker with a protection structure, which relates to the field of circuit breakers, and comprises a circuit breaker shell, two side plates are symmetrically arranged at the central position of the front part of the circuit breaker shell, and a switch handle is rotatably connected between the two side plates at the front part of the circuit breaker shell. A mounting base is fixedly mounted at the position, above the two side plates, of the front portion of the circuit breaker shell, a protection plate is rotationally connected to the bottom of the mounting base, the protection plate is arranged in an arc shape, and the protection plate is adaptively matched with the outer contours of the side plates. According to the circuit breaker with the protection structure, during electric power maintenance operation, a worker can rotate and extrude the mistaken feeding prevention plate to the upper part of the switch handle after the switch is closed, so that non-workers or workers who do not know the maintenance operation do not feed the switch, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a circuit breaker with a protection structure. Background Art

[0002] Circuit breaker is a device that controls the opening and closing of circuits in the circuit system. It also has functions such as overload, short circuit, and undervoltage protection. It is a very important safety protection device in the power system.

[0003] When workers are repairing circuits, they need to cut off the power supply of the circuit breaker to protect themselves. When the power is cut off, multiple circuits will be shut off. When non-workers or workers who are not aware of the maintenance work encounter the circuit being cut off, there is a problem of judging it as a tripping phenomenon, and the circuit breaker will be manually sent, which will bring the risk of electric shock to the maintenance workers, posing a serious safety hazard;

[0004] To this end, this case proposes a circuit breaker with a protection structure to solve the above technical problems. Utility Model Content

[0005] The main purpose of the utility model is to provide a circuit breaker with a protection structure, which can effectively solve the technical problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A circuit breaker with a protective structure comprises a circuit breaker housing, wherein two side plates are symmetrically mounted at the front center of the circuit breaker housing, and a switch handle is rotatably connected to the front of the circuit breaker housing between the two side plates, and a mounting seat is fixedly mounted on the front of the circuit breaker housing above the two side plates, and a guard plate is rotatably connected to the bottom of the mounting seat.

[0008] As a further solution of the utility model, the guard plate is arranged in an arc shape, and the guard plate is adaptively matched with the outer contour of the side plate.

[0009] As a further solution of the utility model, a notch is provided at a lower position on the outside of the guard plate, and an anti-misdelivery plate is rotatably connected inside the notch.

[0010] As a further solution of the utility model, a convex strip is fixedly installed on the outside of the anti-misdelivery plate near one end.

[0011] As a further solution of the utility model, the anti-misdelivery plate is arranged in an arc shape, and the anti-misdelivery plate and the guard plate are arranged in a concentric circle.

[0012] As a further solution of the utility model, the movable range of the anti-misdelivery plate is 0-35°.

[0013] The beneficial effects of the utility model are as follows:

[0014] By setting a guard plate in conjunction with an anti-misdelivery plate, the guard plate, the anti-misdelivery plate and the side plate to form a space, the switch handle is protected to reduce dust and water stains from entering the gap between the circuit breaker housing and the switch handle;

[0015] By setting up an anti-misdelivery plate, during power maintenance work, the staff can rotate and squeeze the anti-misdelivery plate on the upper part of the switch handle after closing the gate to indicate non-staff or staff who are unaware of the maintenance work not to send the gate, thereby increasing the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a circuit breaker with a protection structure according to the utility model;

[0017] Figure 2 This is a diagram showing an open guard plate of a circuit breaker with a protective structure according to the utility model;

[0018] Figure 3 This is a demonstration diagram of the rotation of the anti-misdelivery plate of a circuit breaker with a protection structure according to the utility model;

[0019] Figure 4 The utility model is a circuit breaker with a protection structure Figure 2 Bottom view picture;

[0020] Figure 5 The utility model is a circuit breaker with a protection structure Figure 3 Bottom perspective image.

[0021] In the figure: 1. Circuit breaker housing; 2. Side panel; 3. Mounting base; 4. Guard plate; 5. Switch handle; 6. Anti-misdelivery plate; 7. Missing slot. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-Figure 5 As shown, a circuit breaker with a protective structure includes a circuit breaker housing 1, two side plates 2 are symmetrically installed at the front center position of the circuit breaker housing 1, and the front part of the circuit breaker housing 1 is located between the two side plates 2 and is rotatably connected to a switch handle 5, the front part of the circuit breaker housing 1 is located above the two side plates 2 and is fixedly installed with a mounting base 3, and the bottom of the mounting base 3 is rotatably connected to a guard plate 4.

[0024] In this embodiment, the guard plate 4 is arranged in an arc shape, and the guard plate 4 is adaptively matched with the outer contour of the side plate 2;

[0025] The guard plate 4 cooperates with the side plate 2 to be sealed on the outside of the switch handle 5 , thereby achieving the effect of waterproofing and dustproofing the gap between the switch handle 5 and the circuit breaker housing 1 .

[0026] In this embodiment, a notch 7 is provided at the lower part of the outer portion of the guard plate 4, and an anti-misdelivery plate 6 is rotatably connected to the inner portion of the notch 7;

[0027] During normal use, the anti-misdelivery plate 6 can fill the gap in the slot 7, so that the guard plate 4 can play a normal protective effect. During power maintenance operations, the staff can rotate the anti-misdelivery plate 6 and squeeze it on the upper part of the switch handle 5 after closing the gate to indicate non-staff or staff who are unaware of the maintenance work not to send the gate, thereby increasing the protection effect.

[0028] In this embodiment, a convex strip is fixedly installed on the outside of the anti-misdelivery plate 6 near one end;

[0029] The convex strip can facilitate the operation and rotation of the anti-misdelivery plate 6 and the guard plate 4.

[0030] In this embodiment, the anti-misdelivery plate 6 is arranged in an arc shape, and the anti-misdelivery plate 6 and the guard plate 4 are arranged in a concentric circle;

[0031] During normal use, the anti-misdelivery plate 6 will not affect the protective function of the guard plate 4.

[0032] In this embodiment, the range of motion of the mis-delivery prevention plate 6 is 0-35°;

[0033] Since the movable range of the anti-misdelivery plate 6 is 0-35°, it cannot be turned toward the outside of the guard plate 4 to avoid affecting the protective effect of the guard plate 4.

[0034] It should be noted that the utility model is a circuit breaker with a protective structure. When in use, the circuit breaker is installed in the entire circuit system. When in normal use, the side plate 2, the guard plate 4 and the anti-misdelivery plate 6 form a protective space to protect the switch handle 5 and reduce dust and water stains from entering the gap between the circuit breaker housing 1 and the switch handle 5;

[0035] During maintenance work, the staff first turns to open the guard plate 4, then turns the switch handle 5 to close the gate, and then turns the anti-misdelivery plate 6 to the position of the switch handle 5 to abut against the switch handle 5, which can indicate non-staff or staff who are unaware of the maintenance work to not send the gate, thereby increasing the protection effect.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circuit breaker with a protective structure, comprising a circuit breaker housing (1), wherein two side plates (2) are symmetrically mounted at the front center of the circuit breaker housing (1), and a switch handle (5) is rotatably connected to the front of the circuit breaker housing (1) between the two side plates (2), characterized in that: A mounting seat (3) is fixedly mounted on the front portion of the circuit breaker housing (1) above the two side plates (2), and a guard plate (4) is rotatably connected to the bottom of the mounting seat (3).

2. A circuit breaker with a protection structure according to claim 1, characterized in that: The guard plate (4) is arranged in an arc shape, and the guard plate (4) is adaptively matched with the outer contour of the side plate (2).

3. A circuit breaker with a protection structure according to claim 1, characterized in that: A notch (7) is provided at a lower position outside the guard plate (4), and an anti-misdelivery plate (6) is rotatably connected inside the notch (7).

4. A circuit breaker with a protection structure according to claim 3, characterized in that: A convex strip is fixedly mounted on the outside of the mis-delivery prevention plate (6) near one end.

5. The circuit breaker with a protection structure according to claim 3, characterized in that: The anti-misdelivery plate (6) is arranged in an arc shape, and the anti-misdelivery plate (6) and the guard plate (4) are arranged in a concentric circle.

6. A circuit breaker with a protection structure according to claim 3, characterized in that: The movable range of the anti-misdelivery plate (6) is 0-35°.

Images