Repulsion limit structure of circuit breaker

Abstract

The utility model relates to the technical field of repulsion limit structures of circuit breakers, in particular to a repulsion limit structure of a circuit breaker, which comprises a first vertical plate and a circuit breaker, the rear end face of the first vertical plate is attached to the left side of the front face of the circuit breaker, and a second vertical plate is attached to the right side of the front face of the circuit breaker. The inner wall of the second vertical plate is connected with a limiting structure, and the upper sides and the lower sides of the front faces of the first vertical plate and the second vertical plate are connected with mounting structures correspondingly. In a mounting structure, a screw rod slides up and down on the inner wall of a straight cylinder, the connecting position of the screw rod is adjusted, then a grip drives the screw rod to move backwards through the straight cylinder, the rear portion of the outer wall of the screw rod is in threaded connection with a round opening in the front face of the circuit breaker till the rear portion of the grip abuts against the front face of a protection pad, and mounting of the repulsion limiting structure of the circuit breaker is completed. The problem of connection conflict is solved, normal installation of the repulsion limit structure of the circuit breaker is ensured, and the use limitation of the repulsion limit structure of the circuit breaker is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of a circuit breaker's repulsion limit structure, in particular to a circuit breaker's repulsion limit structure. Background Art

[0002] The circuit breaker's repulsive limit structure is used to provide a signal that the mechanism has reached its limit, while the ultimate limit switch is designed to prevent the mechanism from moving beyond the design range to prevent accidents.

[0003] For example, the announcement number "CN221200959U" is a circuit breaker's opening limit structure, which includes a limiting surface arranged on the moving contact and a limiting portion arranged on the intermediate cover for making the moving contact be in a predetermined position after opening. When the circuit breaker is in the maximum opening position, the limiting surface contacts the limiting portion, providing a reliable opening limit function while enabling the moving contact to stop stably and achieving the effect of reducing the impact of the moving contact on the circuit breaker housing during the opening process. However, during the use of the circuit breaker's opening limit structure, the installation position cannot be adjusted, and the circuit breakers have different specifications. This will cause conflicts during the installation of the circuit breaker's opening limit structure, and it cannot be installed as needed, affecting the normal installation of the circuit breaker's opening limit structure, and making the circuit breaker's opening limit structure have usage limitations. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the normal installation of the circuit breaker's opening limit structure is affected, resulting in the use limitation of the circuit breaker's opening limit structure, and to propose a circuit breaker's opening limit structure.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A circuit breaker opening limit structure is designed, comprising a first vertical plate and a circuit breaker, wherein the rear end face of the first vertical plate is in contact with the left side of the front face of the circuit breaker, a second vertical plate is in contact with the right side of the front face of the circuit breaker, the inner wall of the second vertical plate is connected to the limit structure, and the upper and lower sides of the front faces of the first and second vertical plates are respectively connected to mounting structures.

[0007] Preferably, the mounting structure includes a straight tube and a screw rod, the outer walls of the plurality of straight tubes are respectively fixedly connected to the upper and lower sides of the front of the first vertical plate and the second vertical plate, the inner wall of the straight tube is plugged into the outer wall of the screw rod, and a handle is fixed to the front of the screw rod.

[0008] Preferably, the rear of the outer wall of the screw is threadedly connected to the front circular opening of the circuit breaker.

[0009] Preferably, a gasket is fixed to the front side of the straight cylinder.

[0010] Preferably, the limiting structure includes a horizontal plate and a square plate, the right side of the outer wall of the horizontal plate is plugged into the inner wall of the second vertical plate, the upper and lower right sides of the outer wall of the horizontal plate are fixedly connected to the inner side of the square plate respectively, and the inner wall of the square plate is threadedly connected with bolts.

[0011] Preferably, the left side of the outer wall of the horizontal plate is plugged into the inner wall of the first vertical plate, and the left side of the outer wall of the bolt is threadedly connected to the right circular opening of the second vertical plate.

[0012] The utility model provides a circuit breaker repulsion limit structure, which has the following beneficial effects: through the installation structure, the screw slides up and down on the inner wall of the straight cylinder to adjust the connection position of the screw, and then the handle moves the screw backward through the straight cylinder, so that the rear of the outer wall of the screw is threadedly connected with the circular opening on the front of the circuit breaker until the rear of the handle is tightly abutted against the front of the protective pad, thereby completing the installation of the circuit breaker's repulsion limit structure, solving the problem of connection conflict, ensuring the normal installation of the circuit breaker's repulsion limit structure, and eliminating the use limitations of the circuit breaker's repulsion limit structure. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 for Figure 1 Schematic diagram of the connection structure between the straight barrel, screw and handle;

[0015] Figure 3 for Figure 1 Schematic diagram of the structure of A;

[0016] Figure 4 for Figure 1 Schematic diagram of the connection structure between the middle cross plate and the round rod.

[0017] In the figure: 1. first vertical plate, 2. mounting structure, 201. straight cylinder, 202. screw, 203. handle, 3. limiting structure, 301. horizontal plate, 302. square plate, 303. bolt, 4. second vertical plate, 5. circuit breaker, 6. washer, 7. round rod. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Example 1:

[0020] See also Figure 1-4: In this embodiment, a circuit breaker's repulsion limit structure includes a first vertical plate 1 and a circuit breaker 5. The rear end face of the first vertical plate 1 is in contact with the left side of the front face of the circuit breaker 5. The model of the circuit breaker 5 is selected according to usage requirements. A second vertical plate 4 is in contact with the right side of the front face of the circuit breaker 5. The inner wall of the second vertical plate 4 is connected to the limit structure 3. The upper and lower sides of the front faces of the first vertical plate 1 and the second vertical plate 4 are respectively connected to the mounting structure 2.

[0021] The mounting structure 2 includes a straight tube 201 and a screw rod 202. The outer walls of the plurality of straight tubes 201 are respectively fixedly connected to the upper and lower sides of the front of the first riser 1 and the second riser 4. The inner wall of the straight tube 201 is plugged into the outer wall of the screw rod 202. The screw rod 202 can be moved forward and backward or up and down on the inner wall of the straight tube 201 under force. The front of the screw rod 202 is fixedly connected to a handle 203, which facilitates driving the screw rod 202 to rotate. The rear of the outer wall of the screw rod 202 is threadedly connected to the front round opening of the circuit breaker 5. The front of the straight tube 201 is fixedly connected to a washer 6 made of rubber.

[0022] Through the installation structure 2, the screw 202 slides up and down on the inner wall of the straight cylinder 201 to adjust the connection position of the screw 202, and then the handle 203 moves the screw 202 backward through the straight cylinder 201, so that the rear of the outer wall of the screw 202 is threadedly connected with the round mouth on the front of the circuit breaker 5 until the rear of the handle 203 is tightly pressed against the front of the protective pad 6, completing the installation of the circuit breaker's repulsion limit structure, solving the problem of connection conflict, ensuring the normal installation of the circuit breaker's repulsion limit structure, and eliminating the usage limitations of the circuit breaker's repulsion limit structure.

[0023] The limiting structure 3 includes a horizontal plate 301 and a square plate 302. The right side of the outer wall of the horizontal plate 301 is plugged into the inner wall of the second vertical plate 4. The horizontal plate 301 can be pulled to the right side under force to separate from the inner wall of the second vertical plate 4. The upper and lower right sides of the outer wall of the horizontal plate 301 are fixedly connected to the inner side of the square plate 302 respectively. The inner wall of the square plate 302 is threadedly connected with a bolt 303. The bolt 303 fixes the square plate 302 and the second vertical plate 4. The left side of the outer wall of the horizontal plate 301 is plugged into the inner wall of the first vertical plate 1, and the left side of the outer wall of the bolt 303 is threadedly connected to the right round mouth of the second vertical plate 4.

[0024] Working principle:

[0025] Assembly of the circuit breaker's opening limit structure:

[0026] Make the horizontal plate 301 pass through the inner wall of the second vertical plate 4 from right to left until the left side of the square plates 302 on the upper and lower sides of the horizontal plate 301 are in contact with the right side of the second vertical plate 4. Then, the bolt 303 is threaded through the square plate 302 from right to left and is threadedly connected to the round opening on the right side of the second vertical plate 4. Then, the inner wall of the first vertical plate 1 is put on the outer wall of the horizontal plate 301 to complete the assembly of the circuit breaker's repelling limit structure.

[0027] Installation of the circuit breaker's opening limit structure:

[0028] Place the first vertical plate 1 on the left and right sides of the outer wall of the horizontal plate 301, adjust the distance between the first vertical plate 1 and the second vertical plate 4, then fit the rear of the first vertical plate 1 and the second vertical plate 4 with the front connecting surface of the circuit breaker 5, then slide the screw 202 up and down on the inner wall of the straight cylinder 201, adjust the connection position of the screw 202, and then move the screw 202 backward with the handle 203 through the straight cylinder 201, so that the rear of the outer wall of the screw 202 is threadedly connected to the round mouth on the front of the circuit breaker 5, until the rear of the handle 203 is tightly pressed against the front of the protective pad 6, completing the installation of the circuit breaker's repulsion limit structure.

[0029] When the circuit breaker 5 is opened, the switch will first hit the horizontal plate 301 to avoid directly hitting the outer wall of the circuit breaker 5, thereby playing a role of limit protection.

[0030] Example 2:

[0031] See also Figure 1-4 In this embodiment, a circuit breaker opening limit structure further includes round rods 7, and outer walls of the plurality of round rods 7 are fixedly connected to the inner wall of the horizontal plate 301.

[0032] Working principle:

[0033] The multiple round rods 7 can increase the bending resistance of the horizontal plate 301 and prevent the horizontal plate 301 from bending after being hit.

[0034] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A circuit breaker opening and closing limit structure, comprising a first vertical plate (1) and a circuit breaker (5), wherein the rear end surface of the first vertical plate (1) is in contact with the left side of the front surface of the circuit breaker (5), and is characterized in that: A second vertical plate (4) is attached to the right side of the front face of the circuit breaker (5); the inner wall of the second vertical plate (4) is connected to a limiting structure (3); and the upper and lower sides of the front faces of the first vertical plate (1) and the second vertical plate (4) are respectively connected to mounting structures (2).

2. The circuit breaker opening limit structure according to claim 1, characterized in that: The mounting structure (2) comprises a straight tube (201) and a screw rod (202); the outer walls of the plurality of straight tubes (201) are respectively fixedly connected to the upper and lower sides of the front of the first vertical plate (1) and the second vertical plate (4); the inner walls of the straight tubes (201) are plugged into the outer walls of the screw rods (202); and the front of the screw rods (202) is fixedly connected with a handle (203).

3. The circuit breaker opening limit structure according to claim 2, characterized in that: The rear of the outer wall of the screw rod (202) is threadedly connected to the front circular opening of the circuit breaker (5).

4. The circuit breaker opening limit structure according to claim 2, characterized in that: A gasket (6) is fixedly connected to the front side of the straight cylinder (201).

5. The circuit breaker opening limit structure according to claim 1, characterized in that: The limiting structure (3) comprises a horizontal plate (301) and a square plate (302), wherein the right side of the outer wall of the horizontal plate (301) is plugged into the inner wall of the second vertical plate (4), and the upper and lower sides of the right side of the outer wall of the horizontal plate (301) are respectively fixed to the inner side of the square plate (302), and the inner wall of the square plate (302) is threadedly connected with a bolt (303).

6. The circuit breaker opening limit structure according to claim 5, characterized in that: The left side of the outer wall of the horizontal plate (301) is plugged into the inner wall of the first vertical plate (1), and the left side of the outer wall of the bolt (303) is threadedly connected to the right circular opening of the second vertical plate (4).

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