Plug-in circuit breaker

Abstract

The utility model relates to the technical field of circuit breakers, and discloses a plug-in circuit breaker, which comprises a circuit breaker main body and a mounting base, a connecting column is mounted on the back of the circuit breaker main body, the connecting column is inserted on the mounting base, and the circuit breaker main body is fixedly connected with the mounting base through a bolt. Mounting blocks are detachably mounted on the two sides of the circuit breaker main body, and concave seats are fixedly connected to the front surfaces of the mounting blocks. According to the plug-in circuit breaker, when a circuit breaker main body needs to be taken out, a mounting block is inserted into a concave box, at the moment, the cambered surface of a T-shaped insertion block is stressed and stored in a T-shaped groove, a first spring is extruded, when the T-shaped insertion block moves to the position of a positioning opening, the T-shaped insertion block is inserted into the positioning opening under the elastic force of the first spring, and a T-shaped push block is pushed out of the positioning opening; and at the moment, the handle can be pulled to pull out the circuit breaker main body, so that the circuit breaker has a stress point when being pulled out, and force is conveniently applied to pull out the circuit breaker.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, and more specifically to a plug-in circuit breaker. Background Art

[0002] A circuit breaker refers to a switching device that can close, carry and disconnect current under normal circuit conditions and can close, carry and disconnect current under abnormal circuit conditions within a specified time. Existing circuit breakers are provided with wiring ports for connecting to lines. When the circuit breaker is damaged, rewiring is required after disassembling the circuit breaker. In order to avoid repeated wiring, the existing plug-in circuit breaker is connected to the line through a mounting base, and the connecting column on the circuit breaker body is connected to the energized end on the mounting base. When the circuit breaker body is damaged, it can be directly replaced without reconnecting the line.

[0003] However, when removing the existing plug-in circuit breaker, since most of the circuit breakers are in the shape of cubes, the staff needs to hold the circuit breaker with their hands and pull it out, which lacks a force point. In addition, in order to ensure the connection, after the bolts are removed, there is still a certain connection friction between the circuit breaker body and the mounting base, and it is quite laborious to rely solely on the clamping force of the hands to pull it out. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a plug-in circuit breaker to solve the problems existing in the above background technology.

[0005] The utility model provides the following technical solutions: a plug-in circuit breaker, comprising a circuit breaker body and a mounting base, a connecting column is installed on the back of the circuit breaker body, the connecting column is inserted on the mounting base, the circuit breaker body and the mounting base are fixedly connected by bolts, mounting blocks are detachably installed on both sides of the circuit breaker body, a concave seat is fixedly connected to the front of the mounting block, a rotating plate is rotatably connected to the inner wall of the concave seat, and grips are fixedly connected to the opposite surfaces of the left and right rotating plates;

[0006] Both sides of the circuit breaker body are fixedly connected with a concave box, the surface of the mounting block overlaps the inner wall of the concave box, the upper surface and the lower surface of the mounting block are provided with a T-shaped groove, the inner wall of the T-shaped groove is slidably connected with a T-shaped plug-in block, the T-shaped plug-in block and the opposite surface of the T-shaped groove are fixedly connected with a first spring, the back of the T-shaped plug-in block is arc-shaped, the upper surface and the lower surface of the concave box are provided with a positioning opening, the surface of the T-shaped plug-in block overlaps the inner wall of the positioning opening, the upper surface and the lower surface of the concave box are fixedly connected with a connection box, the surface of the connection box is provided with a sliding opening, the inner wall of the sliding opening is slidably connected with a T-shaped push block, and the surface of the T-shaped push block overlaps the surface of the T-shaped plug-in block.

[0007] A further solution is that grooves are provided on the opposing surfaces of the left and right rotating plates, a sliding opening is provided on the inner bottom wall of the groove, a sliding bar is slidably connected to the inner wall of the sliding opening, a positioning groove is provided on the front side of the concave seat, the surface of the sliding bar overlaps the inner wall of the positioning groove, a second spring is fixedly connected to the opposing surfaces of the sliding bar and the groove, and an operating rod is fixedly connected to the opposing surfaces of the left and right sliding bars.

[0008] A further solution is that the inner wall of the sliding opening is fixedly connected to a limit block, the side of the T-shaped push block is provided with a limit groove compatible with the limit block, the back of the mounting block is provided with a T-shaped circular groove, the inner wall of the T-shaped circular groove is slidably connected to a T-shaped rod, and the opposite surface of the T-shaped rod and the T-shaped circular groove is fixedly connected to a third spring.

[0009] Technical effects and advantages of the utility model:

[0010] 1. For the plug-in circuit breaker, when the circuit breaker body needs to be removed, the mounting block is inserted into the concave box. At this time, the arc surface of the T-shaped plug block is forcefully received in the T-shaped groove, and the first spring is squeezed. When the T-shaped plug block moves to the position of the positioning opening, the T-shaped plug block is inserted into the positioning opening under the elastic force of the first spring, and the T-shaped push block is pushed out of the positioning opening. At this time, the handle can be pulled out to pull out the circuit breaker body, so that the circuit breaker has a force point when being pulled out, which is convenient for pulling out with force.

[0011] 2. In the process of inserting the mounting block into the concave box, the T-shaped rod is squeezed and accommodated in the T-shaped circular groove, and the third spring is squeezed. After the circuit breaker body is removed, the T-shaped push block is pressed, and the T-shaped push block actively pushes the T-shaped insert block into the T-shaped groove. At this time, the elastic force of the third spring can actively push the mounting block out, making it convenient to remove the handle.

[0012] 3. For the plug-in circuit breaker, pull the operating rod, and the operating rod drives the sliding bar to be pulled out of the positioning groove. At this time, the rotating plate can be rotated, and then the two handles can be rotated together, which is convenient for pulling the circuit breaker body with one hand, and the rotating plate is rotated to the original position. Release the operating rod, and under the elastic force of the third spring, the sliding bar is inserted into the positioning groove, which can fix the angle of the rotating plate, and then the rotating plate and the mounting block are connected as a whole, which is convenient for the placement of the mounting block during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0014] Figure 2 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0015] Figure 3 It is a schematic diagram of the side section structure of the concave box of the utility model.

[0016] Figure 4 It is a schematic diagram of the side section structure of the rotating plate of the utility model.

[0017] The reference numerals in the drawings are: 1 circuit breaker body, 2 mounting base, 3 mounting block, 4 concave seat, 5 rotating plate, 6 handle, 7 concave box, 8 T-shaped plug block, 9 first spring, 10 connecting box, 11 T-shaped push block, 12 sliding bar, 13 second spring, 14 operating rod, 15 T-shaped rod, 16 third spring, 17 limit block. DETAILED DESCRIPTION

[0018] A plug-in circuit breaker, referring to Figure 1-4 , including a circuit breaker body 1 and a mounting base 2, a connecting column is installed on the back of the circuit breaker body 1, the connecting column is inserted on the mounting base 2, the circuit breaker body 1 and the mounting base 2 are fixedly connected by bolts, and mounting blocks 3 are detachably installed on both sides of the circuit breaker body 1, a concave seat 4 is fixedly connected to the front of the mounting block 3, a rotating plate 5 is rotatably connected to the inner wall of the concave seat 4, and grooves are provided on the opposite surfaces of the left and right rotating plates 5, and a sliding opening is provided on the inner bottom wall of the groove, and a sliding bar 12 is slidably connected to the inner wall of the sliding opening, a positioning groove is provided on the front of the concave seat 4, the surface of the sliding bar 12 overlaps the inner wall of the positioning groove, and a second spring 13 is fixedly connected to the opposite surface of the sliding bar 12 and the groove, an operating rod 14 is fixedly connected to the opposite surface of the left and right sliding bars 12, and a handle 6 is fixedly connected to the opposite surface of the left and right rotating plates 5.

[0019] Pull the operating rod 14, and the operating rod 14 drives the sliding bar 12 to be pulled out of the positioning groove. At this time, the rotating plate 5 can be rotated, and then the two handles 6 can be rotated together, which is convenient for pulling the circuit breaker body 1 with one hand, and the rotating plate 5 is rotated to the original position. The operating rod 14 is released. Under the elastic force of the third spring 16, the sliding bar 12 is inserted into the positioning groove, and the angle of the rotating plate 5 can be fixed, and then the rotating plate 5 and the mounting block 3 are connected as a whole, which is convenient for the placement of the mounting block 3 during installation.

[0020] Both sides of the circuit breaker body 1 are fixedly connected with a concave box 7, the surface of the mounting block 3 overlaps with the inner wall of the concave box 7, the upper surface and the lower surface of the mounting block 3 are provided with a T-shaped groove, the inner wall of the T-shaped groove is slidably connected with a T-shaped plug block 8, the T-shaped plug block 8 and the opposite surface of the T-shaped groove are fixedly connected with a first spring 9, the back of the T-shaped plug block 8 is arc-shaped, the upper surface and the lower surface of the concave box 7 are provided with a positioning opening, the surface of the T-shaped plug block 8 overlaps with the inner wall of the positioning opening, the upper surface and the lower surface of the concave box 7 are fixedly connected with a connection box 10, the surface of the connection box 10 is provided with a sliding opening, and the inner wall of the sliding opening is slidably connected with a T-shaped push block 11.

[0021] When the circuit breaker body 1 needs to be taken out, the mounting block 3 is inserted into the concave box 7. At this time, the arc surface of the T-shaped plug block 8 is forced to be accommodated in the T-shaped groove, and the first spring 9 is squeezed. When the T-shaped plug block 8 moves to the position of the positioning port, the T-shaped plug block 8 is inserted into the positioning port under the elastic force of the first spring 9, and the T-shaped push block 11 is pushed out of the positioning port. At this time, the handle 6 can be pulled to pull out the circuit breaker body 1, so that the circuit breaker has a force point when being pulled out, which is convenient for pulling out with force.

[0022] The inner wall of the sliding opening is fixedly connected to a limit block 17, a limit groove matched with the limit block 17 is provided on the side of the T-shaped push block 11, the surface of the limit block 17 overlaps with the inner wall of the limit groove, the surface of the T-shaped push block 11 overlaps with the surface of the T-shaped plug block 8, a T-shaped circular groove is provided on the back of the mounting block 3, a T-shaped rod 15 is slidably connected to the inner wall of the T-shaped circular groove, and a third spring 16 is fixedly connected to the opposite surface of the T-shaped rod 15 and the T-shaped circular groove. In the process of inserting the mounting block 3 into the concave box 7, the T-shaped rod 15 is squeezed and accommodated in the T-shaped circular groove, and the third spring 16 is squeezed. After the circuit breaker body 1 is removed, the T-shaped push block 11 is pressed, and the T-shaped push block 11 actively pushes the T-shaped plug block 8 into the T-shaped groove. At this time, the elastic force of the third spring 16 can actively push the mounting block 3 out, so as to facilitate the removal of the handle 6.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in circuit breaker, comprising a circuit breaker body (1) and a mounting base (2), wherein a connecting column is installed on the back of the circuit breaker body (1), and the connecting column is inserted into the mounting base (2), and the circuit breaker body (1) and the mounting base (2) are fixedly connected by bolts, characterized in that: The circuit breaker body (1) is detachably provided with mounting blocks (3), the front face of the mounting block (3) is fixedly connected to a concave seat (4), the inner wall of the concave seat (4) is rotatably connected to a rotating plate (5), and the opposite surfaces of the left and right rotating plates (5) are fixedly connected to handles (6); Both sides of the circuit breaker body (1) are fixedly connected with a concave box (7), the surface of the mounting block (3) overlaps with the inner wall of the concave box (7), the upper surface and the lower surface of the mounting block (3) are provided with a T-shaped groove, the inner wall of the T-shaped groove is slidably connected with a T-shaped plug block (8), the T-shaped plug block (8) and the opposite surface of the T-shaped groove are fixedly connected with a first spring (9), the back of the T-shaped plug block (8) is arc-shaped, the upper surface and the lower surface of the concave box (7) are provided with a positioning opening, the surface of the T-shaped plug block (8) overlaps with the inner wall of the positioning opening, the upper surface and the lower surface of the concave box (7) are fixedly connected with a connection box (10), the surface of the connection box (10) is provided with a sliding opening, the inner wall of the sliding opening is slidably connected with a T-shaped push block (11), and the surface of the T-shaped push block (11) overlaps with the surface of the T-shaped plug block (8).

2. A plug-in circuit breaker according to claim 1, characterized in that: The opposite surfaces of the left and right rotating plates (5) are both provided with grooves, the inner bottom wall of the groove is provided with a sliding opening, and the inner wall of the sliding opening is slidably connected with a sliding bar (12).

3. A plug-in circuit breaker according to claim 2, characterized in that: A positioning groove is provided on the front side of the concave seat (4), and the surface of the sliding bar (12) overlaps with the inner wall of the positioning groove.

4. A plug-in circuit breaker according to claim 3, characterized in that: The sliding bar (12) is fixedly connected to the surface opposite to the groove with a second spring (13).

5. A plug-in circuit breaker according to claim 4, characterized in that: The opposite surfaces of the left and right sliding bars (12) are fixedly connected with operating rods (14).

6. A plug-in circuit breaker according to claim 1, characterized in that: The back of the mounting block (3) is provided with a T-shaped circular groove, the inner wall of the T-shaped circular groove is slidably connected with a T-shaped rod (15), and the opposite surface of the T-shaped rod (15) and the T-shaped circular groove is fixedly connected with a third spring (16).

7. A plug-in circuit breaker according to any one of claims 1 to 6, characterized in that: The inner wall of the sliding opening is fixedly connected to a limiting block (17), and the side surface of the T-shaped push block (11) is provided with a limiting groove matched with the limiting block (17).

8. A plug-in circuit breaker according to claim 7, characterized in that: The surface of the limiting block (17) overlaps with the inner wall of the limiting groove.

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