Circuit breaker with shield

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker with a protective cover, which comprises a transverse plate and a vertical plate, the left side and the right side of the front surface of the transverse plate are fixedly connected with the rear end surface of the vertical plate respectively, the inner wall of the vertical plate is connected with a protective structure, the bottom of the protective structure is connected with a handle, and the rear end surface of the transverse plate is connected with a mounting structure. The left side and the right side of the transverse plate are connected with installation structures correspondingly. The straight plate drives the square plates to move, the distance between the two square plates is adjusted, then the circular ring rotates backwards through the threaded rod, the rear end face of the circular ring abuts against the front face of the transverse plate, friction force is generated between the circular ring and the transverse plate, the positions of the threaded rod and the straight plate are fixed, and then the rear portion of the transverse plate is attached to the front face of the circuit breaker. At the moment, the inner side of the square plate is attached to the outer wall of the circuit breaker, and then the right outward internal thread of the bolt penetrates through the square plate to be in threaded connection with the outer wall of the circuit breaker, thereby realizing disassembly and assembly of the shield, ensuring the service life of the circuit breaker and reducing the use cost of the circuit breaker.

Description

Technical Field

[0001] This utility model relates to the technical field of circuit breakers with protective covers, specifically a circuit breaker with a protective cover. Background Technology

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions and can close, carry, and interrupt current under abnormal circuit conditions within a specified time.

[0003] For example, a residual current circuit breaker with a protective cover, as disclosed in announcement number "CN213150692U", has a rotating block connected to a first protective cover at one end. A socket is provided on one side of the first protective cover, and a through groove is provided on one side of the second protective cover. A spring is installed on the inner surface of the through groove, and a sliding block is installed at the other end of the spring. A square hole is provided on the top surface of the second protective cover, and a button is movably installed inside the square hole. A limit block is fixed on one side of the square hole. Pressing the button opens both the first and second protective covers, thus facilitating the opening and closing of the covers. However, during circuit breaker use, the covers are integrated with the circuit breaker and cannot be disassembled. When the covers are damaged, they cannot be replaced, requiring the entire circuit breaker to be replaced, shortening the circuit breaker's service life and increasing its operating costs. Utility Model Content

[0004] The purpose of this utility model is to solve the problem of shortening the service life of circuit breakers and increasing the operating cost of circuit breakers, and to propose a circuit breaker with a protective cover.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a circuit breaker with a protective cover, including a horizontal plate and a vertical plate. The left and right sides of the front of the horizontal plate are fixedly connected to the rear end face of the vertical plate, respectively. A protective structure is connected to the inner wall of the vertical plate. A handle is connected to the bottom of the protective structure. An installation structure is connected to the rear end face of the horizontal plate. An installation structure is connected to the left and right sides of the horizontal plate, respectively. The circuit breaker is attached to the rear end face of the horizontal plate.

[0007] Preferably, the mounting structure includes a straight plate and a square plate. The outer walls of the two straight plates are respectively inserted into the left and right sides of the horizontal plate. The ends of the straight plates are fixedly connected to the inner sides of the square plates. A screw is fixedly connected to the front of the straight plate, and a ring is threaded onto the outer wall of the screw.

[0008] Preferably, the rear of the outer wall of the screw is slidably connected to the front groove of the cross plate.

[0009] Preferably, the inner sides of the two square plates are respectively attached to the left and right sides of the circuit breaker.

[0010] Preferably, the protective structure includes a round rod and a sleeve plate. The left and right ends of the round rod are rotatably connected to the inner wall of the upright plate, the outer wall of the round rod is fixedly connected to the inner wall of the sleeve plate, a protective cover is fixedly connected to the bottom of the sleeve plate, and springs are respectively sleeved on the left and right sides of the outer wall of the round rod. The two ends of the springs are fixedly connected to the inner side of the upright plate and the outer wall of the sleeve plate, respectively.

[0011] Preferably, the bottom of the protective cover is fixedly connected to the top of the handle.

[0012] The present invention discloses a circuit breaker with a protective cover, which has the following advantages: In the installation structure, the ring rotates forward through the outer wall of the screw, causing the ring to detach from the front of the horizontal plate. Then, the screw slides left and right in the groove on the front of the horizontal plate, moving the straight plate left and right. Simultaneously, the straight plate moves the square plate, adjusting the distance between the two square plates. Next, the ring rotates backward through the screw, causing its rear end to abut against the front of the horizontal plate, generating friction between them and fixing the positions of the screw and the straight plate. Then, the rear of the horizontal plate is brought into contact with the front of the circuit breaker, at which point the inner side of the square plate is in contact with the outer wall of the circuit breaker. Finally, the bolt, with its right-outward-inward thread, passes through the square plate and connects to the outer wall of the circuit breaker, enabling the installation and removal of the protective cover. This ensures the service life of the circuit breaker and reduces its operating costs. Attached Figure Description

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

[0014] Figure 2 for Figure 1 A schematic diagram showing the connection relationship between the central round rod, the sleeve plate, and the protective cover;

[0015] Figure 3 for Figure 1 A schematic diagram showing the connection relationship between the straight plate, square plate, and screw.

[0016] Figure 4 for Figure 1 A schematic diagram of the structure of A in the middle;

[0017] Figure 5 for Figure 1 A schematic diagram of the structure of B in the middle.

[0018] In the diagram: 1. Horizontal plate, 2. Mounting structure, 201. Straight plate, 202. Square plate, 203. Screw, 204. Ring, 3. Protective structure, 301. Round rod, 302. Sleeve plate, 303. Protective cover, 304. Spring, 4. Vertical plate, 5. Circuit breaker, 6. Handle, 7. Protective pad. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] Example 1:

[0021] Please see Figure 1-5 In this embodiment, a circuit breaker with a protective cover includes a horizontal plate 1 and a vertical plate 4. The left and right sides of the front of the horizontal plate 1 are fixedly connected to the rear end face of the vertical plate 4, respectively. A protective structure 3 is connected to the inner wall of the vertical plate 4, and a handle 6 is connected to the bottom of the protective structure 3. An installation structure 2 is connected to the rear end face of the horizontal plate 1, and an installation structure 2 is connected to the left and right sides of the horizontal plate 1, respectively. A circuit breaker 5 is attached to the rear end face of the horizontal plate 1. How the circuit breaker 5 is operated and used is existing technology and will not be elaborated in detail. The model is selected according to the usage requirements.

[0022] The mounting structure 2 includes a straight plate 201 and a square plate 202. The outer walls of the two straight plates 201 are respectively inserted into the left and right sides of the horizontal plate 1. The two straight plates 201 slide left and right through the slots on the left and right sides of the horizontal plate 1 when subjected to force. The ends of the straight plates 201 are fixedly connected to the inner side of the square plate 202. A screw 203 is fixedly connected to the front of the straight plate 201. A ring 204 is threadedly connected to the outer wall of the screw 203. The ring 204 rotates back and forth through the outer wall of the screw 203 when subjected to force. The rear of the outer wall of the screw 203 slides through the slot on the front of the horizontal plate 1 when subjected to force. The screw 203 slides left and right through the slot on the front of the horizontal plate 1 when subjected to force. The inner sides of the two square plates 202 are respectively attached to the left and right sides of the circuit breaker 5.

[0023] By rotating the ring 204 forward through the outer wall of the screw 203 in the installation structure 2, the ring 204 is disengaged from the front of the horizontal plate 1. Then, the screw 203 slides left and right in the groove on the front of the horizontal plate 1. The sliding screw 203 moves the straight plate 201 left and right, while the straight plate 201 moves the square plate 202, thus adjusting the distance between the two square plates 202. Then, the ring 204 rotates backward through the screw 203, so that the rear end face of the ring 204 abuts against the front of the horizontal plate 1, generating friction between the ring 204 and the horizontal plate 1, fixing the position of the screw 203 and the straight plate 201. Then, the rear of the horizontal plate 1 is attached to the front of the circuit breaker 5. At this time, the inner side of the square plate 202 is attached to the outer wall of the circuit breaker 5. Then, the bolt with the right outer to inner thread passes through the square plate 202 and is threaded to the outer wall of the circuit breaker 5, realizing the installation and removal of the protective cover, ensuring the service life of the circuit breaker and reducing the operating cost of the circuit breaker.

[0024] The protective structure 3 includes a round rod 301 and a sleeve plate 302. The left and right ends of the round rod 301 are rotatably connected to the inner wall of the upright plate 4. The round rod 301 rotates under force through the bearings on the inner wall of the upright plate 4. The outer wall of the round rod 301 is fixedly connected to the inner wall of the sleeve plate 302. A protective cover 303, which is a glass cover, is fixedly connected to the bottom of the sleeve plate 302. Springs 304 are sleeved on the left and right sides of the outer wall of the round rod 301. The two ends of the springs 304 are fixedly connected to the inner side of the upright plate 4 and the outer wall of the sleeve plate 302, respectively. After the sleeve plate 302 rotates under force, it rebounds due to the elastic force of the springs 304. The bottom of the protective cover 303 is fixedly connected to the top of the handle 6, and the handle 6 facilitates the rotation of the protective cover 303.

[0025] Working principle:

[0026] Circuit breaker protection installation:

[0027] The ring 204 is rotated forward through the outer wall of the screw 203, causing the ring 204 to disengage from the front of the horizontal plate 1. Then, the screw 203 slides left and right in the groove on the front of the horizontal plate 1. The sliding screw 203 moves the straight plate 201 left and right, while the straight plate 201 moves the square plate 202, thus adjusting the distance between the two square plates 202. Then, the ring 204 is rotated backward through the screw 203, causing the rear end face of the ring 204 to press against the front of the horizontal plate 1, generating friction between the ring 204 and the horizontal plate 1, thus fixing the position of the screw 203 and the straight plate 201. Then, the rear of the horizontal plate 1 is brought into contact with the front of the circuit breaker 5. At this time, the inner side of the square plate 202 is in contact with the outer wall of the circuit breaker 5. Then, the right-outward-inward thread of the bolt passes through the square plate 202 and is threadedly connected to the outer wall of the circuit breaker 5.

[0028] Circuit breaker cover opening and closing:

[0029] By rotating the handle 6 forward with the cover 303, the cover 303, along with the sleeve 302 and the round rod 301, rotates forward. At this time, the sleeve 302 applies torque to the spring 304, and the cover 303 gradually moves away from the switch of the circuit breaker 5. Then, the circuit breaker 5 is operated. After the operation is completed, the handle 6 is released, and the spring 304 provides a rebound force to release the torque, causing the sleeve 302 to rotate downward with the cover 303, so that the cover 303 covers the switch of the circuit breaker 5.

[0030] Example 2:

[0031] Please see Figure 1-5 In this embodiment, a circuit breaker with a passport also includes a protective pad 7. The front of the protective pad 7 is fixedly connected to the rear end face of the cover 303, and the rear end face of the protective pad 7 is in contact with the front of the circuit breaker 5.

[0032] Working principle:

[0033] When the cover 302 rotates, the pad 7 will first come into contact with the front of the circuit breaker 5. The pad 7 uses its own rubber material to cushion the cover 302, preventing the cover 302 from directly impacting the circuit breaker 5.

[0034] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A circuit breaker with a protective cover, comprising a horizontal plate (1) and a vertical plate (4), characterized in that: The front left and right sides of the horizontal plate (1) are fixedly connected to the rear end face of the vertical plate (4), the inner wall of the vertical plate (4) is connected to a protective structure (3), the bottom of the protective structure (3) is connected to a handle (6), the rear end face of the horizontal plate (1) is connected to an installation structure (2), the left and right sides of the horizontal plate (1) are connected to an installation structure (2), and the rear end face of the horizontal plate (1) is fitted with a circuit breaker (5).

2. A circuit breaker with a protective cover according to claim 1, characterized in that: The mounting structure (2) includes a straight plate (201) and a square plate (202). The outer walls of the two straight plates (201) are respectively inserted into the left and right sides of the horizontal plate (1). The end of the straight plate (201) is fixedly connected to the inner side of the square plate (202). A screw (203) is fixedly connected to the front of the straight plate (201). A ring (204) is threaded onto the outer wall of the screw (203).

3. A circuit breaker with a protective cover according to claim 2, characterized in that: The outer wall of the screw (203) is slidably connected to the front groove of the horizontal plate (1).

4. A circuit breaker with a protective cover according to claim 2, characterized in that: The inner sides of the two square plates (202) are respectively attached to the left and right sides of the circuit breaker (5).

5. A circuit breaker with a protective cover according to claim 1, characterized in that: The protective structure (3) includes a round rod (301) and a sleeve plate (302). The left and right ends of the round rod (301) are rotatably connected to the inner wall of the upright plate (4). The outer wall of the round rod (301) is fixedly connected to the inner wall of the sleeve plate (302). A protective cover (303) is fixedly connected to the bottom of the sleeve plate (302). Springs (304) are sleeved on the left and right sides of the outer wall of the round rod (301). The two ends of the springs (304) are fixedly connected to the inner side of the upright plate (4) and the outer wall of the sleeve plate (302).

6. A circuit breaker with a protective cover according to claim 5, characterized in that: The bottom of the protective cover (303) is fixedly connected to the top of the handle (6).

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