Frame circuit breaker

Abstract

The utility model discloses a frame circuit breaker, and relates to the technical field of electrical equipment, the frame circuit breaker comprises a frame circuit breaker body, the back surface of the frame circuit breaker body is provided with a connecting groove, the inner wall of the connecting groove is fixedly connected with a fixing frame, and the two ends of the fixing frame are rotatably connected with connecting rods. One end of each connecting rod is fixedly connected with a pull rod, the other end of each connecting rod is fixedly connected with a rotating frame, the bottom end of each rotating frame is rotatably connected with a roller, and the two sides of the frame circuit breaker body are rotatably connected with rotating rods. Under the action of the lever, the tail part of the frame circuit breaker body is jacked in cooperation with the rotation of the rotating rod and the sliding block, and in cooperation with the sliding of the sliding block on the guide rail, the frame circuit breaker body can be conveniently pulled out of the protection plate by means of the rotation of the rolling wheel, so that an operator can conveniently carry out maintenance and overhaul operation.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a frame circuit breaker. Background Art

[0002] A frame circuit breaker is a device used to protect electrical equipment and circuits. It can automatically cut off the current when an overload, short circuit or other fault condition is detected in the circuit to prevent equipment damage or fire. The frame circuit breaker is usually installed on the main power line of the electrical system and can automatically disconnect the circuit according to the current size and the set trigger conditions.

[0003] For example, publication number CN217306412U discloses a frame circuit breaker, including a top cover, a connecting plate, a fixing frame and a static contact assembly, the fixing frame is connected and fixed to the top cover and the connecting plate in a vertical direction, a first transverse portion, a first longitudinal portion and a second transverse portion are provided on the fixing frame, the first transverse portion is connected to the second transverse portion through the first longitudinal portion, a first bending portion is provided on the first transverse portion, a first fixing hole is provided on the first bending portion, a bolt passes horizontally through the top cover and the connecting plate and extends into the first fixing hole for fixing; a protruding first positioning protrusion is provided on the first longitudinal portion, the first positioning protrusion extends toward the second transverse portion; the second transverse portion is connected and fixed to the side of the static contact assembly.

[0004] However, the existing frame circuit breakers are large in size, and it is inconvenient to operate during maintenance and repair during long-term use, which makes the maintenance and repair process time-consuming and labor-intensive. In addition, it is difficult to quickly reset and fix them during installation, which affects the subsequent timely resumption of use of the frame circuit breaker. Utility Model Content

[0005] The purpose of the utility model is to solve the problems in the prior art that maintenance and overhaul are inconvenient to operate during long-term use, resulting in a time-consuming and labor-intensive maintenance and overhaul process, and it is difficult to quickly reset and fix the frame circuit breaker during installation, which affects the subsequent timely resumption of use of the frame circuit breaker. A frame circuit breaker is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a frame circuit breaker, comprising a frame circuit breaker body, a connecting groove is opened on the back of the frame circuit breaker body, a fixing frame is fixedly connected to the inner wall of the connecting groove, both ends of the fixing frame are rotatably connected to connecting rods, one end of the two connecting rods is fixedly connected to a pull rod, the other end of the connecting rod is fixedly connected to a rotating frame, the bottom end of the rotating frame is rotatably connected to a roller, both sides of the frame circuit breaker body are rotatably connected to rotating rods, one end of the rotating rod is rotatably connected to a slider, a guide rail is arranged below the frame circuit breaker body, and the slider is movably sleeved on the outer wall of the guide rail.

[0007] Preferably, a protective plate is provided on the outside of the frame circuit breaker body, and the guide rail is fixedly connected to the bottom surface of the inner wall of the protective plate.

[0008] Preferably, the top surfaces at both ends of the fixing frame are fixedly connected with support blocks, and the top ends of the support blocks are rotatably connected with telescopic rods.

[0009] Preferably, a rotation groove is formed through the top surface of the connecting rod, and one end of the movable rod of the telescopic rod is rotatably connected to the inner wall of the rotation groove.

[0010] Preferably, a slot is provided on the top surface of the guide rail.

[0011] Preferably, a limiting clamping plate is fixedly connected to the bottom surface of the fixing frame, and the limiting clamping plate is movably connected to the inner wall of the clamping slot.

[0012] Preferably, a terminal block is installed on the top surface of the frame circuit breaker body.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, by pulling the pull rod upward, the roller is pressed against the protective plate through the connecting rod, and the tail of the frame circuit breaker body is lifted by the rotation of the rotating rod and the slider under the action of the lever, and the slider slides on the guide rail, so that the frame circuit breaker body can be conveniently pulled out of the protective plate with the help of the rotation of the roller, thereby facilitating the operator to perform maintenance and repair operations.

[0015] 2. In the utility model, by setting the limit card plate and the card slot, after the pull rod is lifted, the limit card plate is separated from the card slot on the guide rail as the frame circuit breaker body is lifted, and the pull rod is released after being pulled out, and the limit card plate and the card slot are automatically engaged under the gravity of the frame circuit breaker body to prevent the frame circuit breaker body from moving during operation. After the maintenance and overhaul is completed, the pull rod can be pulled again to push the frame circuit breaker body back to the original position, so that the utility model can quickly complete the reset and realize automatic fixed locking through the automatic engagement of the limit card plate and the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional structural schematic diagram of a frame circuit breaker is proposed for the utility model;

[0017] Figure 2 A schematic diagram of the rear view structure of a frame circuit breaker body of a frame circuit breaker proposed in the utility model;

[0018] Figure 3 The utility model proposes a frame circuit breaker Figure 2 A magnified view of the structure at center;

[0019] Figure 4 The utility model provides a schematic diagram of a guide rail structure of a frame circuit breaker.

[0020] Legend: 1. Frame circuit breaker body; 11. Terminal block; 12. Connection slot; 13. Rotating rod; 14. Slider; 2. Protective plate; 3. Pull rod; 31. Connecting rod; 32. Rotating frame; 33. Fixed frame; 34. Roller; 35. Support block; 36. Telescopic rod; 37. Rotating slot; 38. Limiting card plate; 4. Guide rail; 41. Card slot. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1

[0024] like Figure 1-4 As shown, the utility model provides a frame circuit breaker, including a frame circuit breaker body 1, a connecting groove 12 is opened on the back of the frame circuit breaker body 1, a fixing frame 33 is fixedly connected to the inner wall of the connecting groove 12, both ends of the fixing frame 33 are rotatably connected to connecting rods 31, one end of the two connecting rods 31 is fixedly connected to the pull rod 3, the other end of the connecting rod 31 is fixedly connected to the rotating frame 32, the bottom end of the rotating frame 32 is rotatably connected to the roller 34, one side of the frame circuit breaker body 1 is rotatably connected to the rotating rod 13, one end of the rotating rod 13 is rotatably connected to the slider 14, a guide rail 4 is arranged below the frame circuit breaker body 1, the slider 14 is movably sleeved on the outer wall of the guide rail 4, and a terminal block 11 is installed on the top surface of the frame circuit breaker body 1.

[0025] The specific configuration and function of this embodiment are described in detail below. By pulling the pull rod 3 upward, the roller 34 is pressed against the protective plate 2 through the connecting rod 31. Under the action of the lever, the rear part of the frame circuit breaker body 1 is lifted by the rotation of the rotating rod 13 and the slider 14. The limiting clamping plate 38 is separated from the clamping groove 41 on the guide rail 4, so that the frame circuit breaker body 1 can be conveniently pulled out of the protective plate 2 with the help of the rotation of the roller 34, thereby facilitating the operator to perform maintenance and repair operations.

[0026] Embodiment 2

[0027] like Figure 1-4As shown, a protective plate 2 is provided on the outside of the frame circuit breaker body 1, and a guide rail 4 is fixedly connected to the bottom surface of the inner wall of the protective plate 2. The top surfaces of both ends of the fixed frame 33 are fixedly connected to support blocks 35, and the top of the support block 35 is rotatably connected to a telescopic rod 36. A rotating groove 37 is penetrated through the top surface of the connecting rod 31, and one end of the movable rod of the telescopic rod 36 is rotatably connected to the inner wall of the rotating groove 37. A card slot 41 is provided on the top surface of the guide rail 4, and a limit card plate 38 is fixedly connected to the bottom surface of the fixed frame 33, and the limit card plate 38 is movably connected to the inner wall of the card slot 41.

[0028] The effect achieved by the entire embodiment is that, by pulling out the frame circuit breaker body 1 and loosening the pull rod 3, the limit clamping plate 38 is automatically engaged with the clamping slot 41 under the action of the gravity of the frame circuit breaker body 1, so as to prevent the frame circuit breaker body 1 from moving during operation. After the maintenance and overhaul is completed, the pull rod 3 can be pulled again to push the frame circuit breaker body 1 back to its original position, so that the utility model can quickly complete the reset and realize automatic fixed locking by automatically engaging the limit clamping plate 38 with the clamping slot 41, and lifting and resetting by the roller 34 after the pull rod 3 automatically falls back.

[0029] The use method and working principle of the device are as follows: during maintenance and overhaul, by pulling the pull rod 3 upward, the roller 34 is pressed into contact with the protective plate 2 through the connecting rod 31, and the rear part of the frame circuit breaker body 1 is lifted by the rotation of the rotating rod 13 and the slider 14 under the action of the lever, and the limit clamping plate 38 is separated from the clamping groove 41 on the guide rail 4, so that the frame circuit breaker body 1 can be conveniently pulled out of the protective plate 2 with the help of the rotation of the roller 34. After pulling it out, the pull rod 3 is released to make the limit clamping plate 38 and the clamping groove 41 automatically engage, so as to prevent the frame circuit breaker body 1 from moving during operation. After the maintenance and overhaul is completed, the pull rod 3 can be pulled again to push the frame circuit breaker body 1 back to its original position.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A frame circuit breaker, comprising a frame circuit breaker body (1), characterized in that: The back of the frame circuit breaker body (1) is provided with a connection groove (12), the inner wall of the connection groove (12) is fixedly connected to a fixing frame (33), both ends of the fixing frame (33) are rotatably connected to connecting rods (31), one end of the two connecting rods (31) is fixedly connected to a pull rod (3), the other end of the connecting rod (31) is fixedly connected to a rotating frame (32), the bottom end of the rotating frame (32) is rotatably connected to a roller (34), both sides of the frame circuit breaker body (1) are rotatably connected to rotating rods (13), one end of the rotating rod (13) is rotatably connected to a slider (14), a guide rail (4) is provided below the frame circuit breaker body (1), and the slider (14) is movably sleeved on the outer wall of the guide rail (4).

2. A frame circuit breaker according to claim 1, characterized in that: A protective plate (2) is arranged outside the frame circuit breaker body (1), and the guide rail (4) is fixedly connected to the bottom surface of the inner wall of the protective plate (2).

3. A frame circuit breaker according to claim 1, characterized in that: The top surfaces at both ends of the fixing frame (33) are fixedly connected to support blocks (35), and the top end of the support block (35) is rotatably connected to a telescopic rod (36).

4. A frame circuit breaker according to claim 3, characterized in that: A rotation groove (37) is formed through the top surface of the connecting rod (31), and one end of the movable rod of the telescopic rod (36) is rotationally connected to the inner wall of the rotation groove (37).

5. A frame circuit breaker according to claim 1, characterized in that: A clamping groove (41) is provided on the top surface of the guide rail (4).

6. A frame circuit breaker according to claim 5, characterized in that: The bottom surface of the fixing frame (33) is fixedly connected to a limiting clamping plate (38), and the limiting clamping plate (38) is movably connected to the inner wall of the clamping groove (41).

7. A frame circuit breaker according to claim 1, characterized in that: A wiring board (11) is installed on the top surface of the frame circuit breaker body (1).

Images