Circuit breaker with buffer structure

Abstract

The utility model discloses a circuit breaker with a buffer structure, which comprises a mounting plate, four corners of the mounting plate are provided with mounting holes for mounting and fixing, the top end of the mounting plate is fixedly connected with a mounting base, and the inner side of the mounting base is slidably connected with a circuit breaker body; the buffer structure is arranged on the inner side of the mounting base; the quick release structures are arranged on the front side and the rear side of the circuit breaker body, and the quick release structures can be used for mounting and dismounting the circuit breaker body; the connecting line clamping structures are arranged on the front side and the rear side of the circuit breaker body, and the connecting line clamping structures are used for clamping a connecting line and preventing a connector of the connecting line from being broken. Compared with the prior art, the circuit breaker provided by the utility model has the advantages that collision force on the circuit breaker body can be buffered, the stability of the circuit breaker body can be quickly recovered, and the circuit breaker body can be quickly disassembled and assembled.

Description

Technical Field

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

[0002] Vacuum circuit breakers are named for their arc-extinguishing medium and the insulating medium in the contact gap after arc extinguishing, both of which are high vacuum. They are compact, lightweight, suitable for frequent operation, and require no maintenance during arc extinguishing, making them widely used in distribution networks. Vacuum circuit breakers are indoor power distribution devices in 3-10kV, 50Hz three-phase AC systems. They are used to protect and control electrical equipment in industrial and mining enterprises, power plants, and substations. They are particularly suitable for applications requiring oil-free operation, minimal maintenance, and frequent operation. Circuit breakers can be deployed in central cabinets, double-layer cabinets, and fixed cabinets to control and protect high-voltage electrical equipment.

[0003] Due to the installation position, external vibration and other issues, the existing vacuum circuit breaker is prone to contact and separation between the bolt contacts. Since the circuit breaker is not stable enough, it is difficult to control and has poor working stability, which cannot meet people's needs.

[0004] Patent No. CN221379268U in the prior art discloses a plug-in circuit breaker with an anti-line-off function, which belongs to the field of plug-in circuit breakers. In order to solve the problem that when the circuit breaker structure is in use, it is inconvenient to restrict the line, which makes the line easily subject to vibration or external force, causing looseness between the line and the circuit breaker structure, thereby affecting the normal use of the circuit breaker structure and failing to ensure the normal operation of the circuit; this application toggles the connecting ring, at which time the telescopic movable column and the connecting spring can be compressed, and the connecting spring can be stretched. At the same time, the line is passed through the connecting ring and inserted into the wiring hole, and then fixed with the mounting bolts, so that the line can be connected and installed with the circuit breaker body. At the same time, the operator can push the clamping ring to perform reciprocating motion through the cylinder part, so that the two sets of clamping rings can be close to each other and the line can be clamped, so as to realize the anti-line-off function and ensure the normal operation of the circuit.

[0005] However, the patents under the existing technology have the following disadvantages:

[0006] (1) This utility model plug-in circuit breaker is not provided with a buffer structure. When in use, the circuit breaker body is easily affected by external factors, such as vibration or collision. The lack of a buffer structure can easily cause the circuit breaker body to be damaged by collision or disconnected, affecting the normal use of the circuit breaker body.

[0007] (2) This utility model plug-in circuit breaker is fixed in the distribution box by bolts. When dismantling, tools are needed to align and remove it, which does not facilitate the quick installation and disassembly of the circuit breaker body and affects the daily maintenance of the circuit breaker body. Utility Model Content

[0008] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a circuit breaker that can buffer the collision force applied to the circuit breaker body, quickly restore the stability of the circuit breaker body, and quickly disassemble and install the circuit breaker body.

[0009] In order to solve the above problems, the technical solution of the present invention is: a circuit breaker with a buffer structure, comprising:

[0010] A mounting plate, with mounting holes at the four corners for mounting and fixing, a mounting base fixedly connected to the top of the mounting plate, and a circuit breaker body slidably connected to the inner side of the mounting base;

[0011] The buffer structure is arranged on the inner side of the mounting base, and the buffer structure includes: a support plate 1, a damper, a limit rod, a sliding frame, a support plate 2, a support rod and a spring 1. There are two support plates and both are fixedly connected to the inner side of the mounting base. The damper is fixedly installed on one side opposite to the two support plates 1. The limit rod is fixedly connected between the damper. The sliding frame is slidably connected to the outside of the limit rod. The support plate 2 is arranged above the limit rod. The support rod is rotatably connected between the support plate 2 and the sliding frame. The spring is sleeved on the outside of the limit rod and fixedly connected between the sliding frame and the damper.

[0012] A quick-release structure is provided on the front and rear sides of the circuit breaker body and can be used for installation and removal of the circuit breaker body;

[0013] The connecting wire clamping structure is arranged on the front and rear sides of the circuit breaker body, and is used to clamp the connecting wire to prevent the connecting wire connector from breaking.

[0014] Furthermore, the quick-release structure includes:

[0015] A limiting shaft 1, wherein a contraction groove 1 is provided on both the front and rear sides of the circuit breaker body, and the limiting shaft 1 is fixedly connected to the inner side of the contraction groove 1;

[0016] A button, wherein the button is slidably connected to an inner side of the contraction groove, and the button is slidably connected to a limit shaft;

[0017] Spring 2, said spring 2 being sleeved on the outside of the limiting shaft 1 and fixedly connected between the shrinkage groove 1 and the button;

[0018] A connecting rod is fixedly connected to the bottom end of the button and is slidably connected to the contraction groove. The bottom end of the connecting rod is fixedly connected with a buckle.

[0019] Furthermore, the connecting wire clamping structure includes:

[0020] A support frame, the support frame is fixedly connected to the front and rear sides of the circuit breaker body, and the inner side of the support frame is further provided with a second shrinkage groove, the inner side of the second shrinkage groove is fixedly connected to the second limit axis;

[0021] A connecting pipe, the connecting pipe is slidably connected to the inner side of the second shrinkage groove, and the second shrinkage groove and the connecting pipe are both square;

[0022] Spring three, said spring three being sleeved on the outside of the limiting shaft two and fixedly connected between the shrinkage groove two and the connecting pipe;

[0023] A push button is fixedly connected to the top of the connecting tube, a limiting groove is provided at the top of the second contraction groove, and the push button is slidably connected to the inner side of the limiting groove;

[0024] A clamping ring is slidably connected to one end of the connecting pipe, and an anti-slip pad is fixedly connected to the inner side of the clamping ring.

[0025] The advantages of this utility model compared with the existing technology are:

[0026] (1) The utility model provides a circuit breaker with a buffer structure. When the circuit breaker body is hit, the collision force on the circuit breaker body can be reduced by squeezing the spring 1. When the circuit breaker body rebounds and vibrates, the spring 1 and the damper can make the circuit breaker body quickly return to stability, and the circuit breaker body can be used normally.

[0027] (2) The utility model provides a circuit breaker with a buffer structure and a quick-release structure, through which the circuit breaker body can be quickly installed into the mounting base or removed from the mounting base, thereby facilitating regular maintenance, inspection and replacement of the circuit breaker body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional diagram of a circuit breaker with a buffer structure according to the present invention.

[0029] Figure 2 This is a cross-sectional view of a circuit breaker with a buffer structure in the utility model. Figure 1 .

[0030] Figure 3 This is a cross-sectional view of a circuit breaker with a buffer structure in the utility model. Figure 2 .

[0031] Figure 4 This is a cross-sectional view of a circuit breaker with a buffer structure in the utility model. Figure 3 .

[0032] Figure 5 This is a cross-sectional view of a circuit breaker with a buffer structure in the utility model. Figure 4.

[0033] As shown in the figure: 1. Mounting plate; 2. Mounting hole; 3. Mounting base; 4. Circuit breaker body; 5. Buffer structure; 501. Support plate; 502. Damper; 503. Limit rod; 504. Sliding frame; 505. Support plate; 506. Support rod; 507. Spring 1; 6. Quick release structure; 601. Contraction groove 1; 602. Limit shaft 1; 603. Button; 604. Spring 2; 605. Connecting rod; 606. Buckle; 7. Connecting wire clamping structure; 701. Support frame; 702. Contraction groove 2; 703. Limit shaft 2; 704. Connecting pipe; 705. Spring 3; 706. Push button; 707. Clamp ring. DETAILED DESCRIPTION

[0034] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0035] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0036] like Figures 1 to 5 As shown, a circuit breaker with a buffer structure is characterized in that it includes: a mounting plate 1, the mounting plate 1 has mounting holes 2 for mounting and fixing at its four corners, the top of the mounting plate 1 is fixedly connected to a mounting base 3, and the inner side of the mounting base 3 is slidably connected to a circuit breaker body 4; a buffer structure 5, the buffer structure 5 is arranged on the inner side of the mounting base 3; a quick-release structure 6, the quick-release structure 6 is arranged on the front and rear sides of the circuit breaker body 4, and the quick-release structure 6 can be used for installing and disassembling the circuit breaker body 4; a connecting wire clamping structure 7, the connecting wire clamping structure 7 is arranged on the front and rear sides of the circuit breaker body 4, and the connecting wire clamping structure 7 is used to clamp the connecting wire to prevent the connecting wire connector from breaking.

[0037] The quick-release structure 6 includes: a limiting shaft 602, a button 603, a second spring 604 and a connecting rod 605. A contraction groove 601 is opened on the front and rear sides of the circuit breaker body 4. The limiting shaft 602 is fixedly connected to the inner side of the contraction groove 601. The button 603 is slidably connected to the inner side of the contraction groove 601. The button 603 is slidably connected to the limiting shaft 602. The second spring 604 is sleeved on the outside of the limiting shaft 602 and fixedly connected between the contraction groove 601 and the button 603. The connecting rod 605 is fixedly connected to the bottom end of the button 603 and is slidably connected to the contraction groove 601. The bottom end of the connecting rod 605 is fixedly connected to a buckle 606.

[0038] Use bolts to fix the mounting plate 1 in the distribution box through the mounting holes 2 at the four corners of the mounting plate 1 to complete the fixing of the mounting base 3.

[0039] Pressing the four buttons 603 simultaneously causes the buttons 603 to squeeze the spring 2 604 and slide and retract into the retraction groove 1 601. The buttons 603 drive the buckle 606 to slide and retract into the retraction groove 1 601 via the connecting rod 605, allowing the circuit breaker body 4 to be slidably installed into the mounting base 3. Release the buttons 603, and the spring 2 604 pushes the button 603 to slide outward from the retraction groove 1 601, causing the buckle 606 to snap into the mounting base 3, completing the installation and fixation of the circuit breaker body 4.

[0040] The connecting wire clamping structure 7 includes: a support frame 701, a connecting tube 704, a third spring 705, a push button 706 and a clamping ring 707. The support frame 701 is fixedly connected to the front and rear sides of the circuit breaker body 4. A second contraction groove 702 is also provided on the inner side of the support frame 701. The inner side of the second contraction groove 702 is fixedly connected to the second limit axis 703. The connecting tube 704 is slidably connected to the inner side of the second contraction groove 702. Both the second contraction groove 702 and the connecting tube 704 are square. The third spring 705 is sleeved on the outer side of the second limit axis 703 and fixedly connected between the second contraction groove 702 and the connecting tube 704. The push button 706 is fixedly connected to the top of the connecting tube 704. A limiting groove is provided on the top of the second contraction groove 702. The push button 706 is slidably connected to the inner side of the limiting groove. The clamping ring 707 is slidably connected to one end of the connecting tube 704. An anti-slip pad is fixedly connected to the inner side of the clamping ring 707.

[0041] Insert the connectors of the connecting wires into the sockets on both sides of the circuit breaker body 4 to complete the connection between the connecting wires and the circuit breaker body 4. Push the push button 706 to cause the connecting tube 704 to move the clamping rings 707 to the sides, so that the connecting wires can be placed between the clamping rings 707. Release the push button 706, and the spring 3 705 pushes the connecting tube 704 to move the clamping rings 707 closer together, tightly clamping the connecting wires. When the circuit breaker body 4 is hit, it can vibrate with the connecting wires on both sides together, preventing the connectors of the connecting wires from being disconnected from the circuit breaker body 4 during vibration, causing a circuit malfunction.

[0042] The buffer structure 5 includes: a support plate 1 501, a damper 502, a limiting rod 503, a sliding frame 504, a support plate 2 505, a support rod 506 and a spring 1 507. There are two support plates 1 501 and both are fixedly connected to the inner side of the mounting base 3. The damper 502 is fixedly installed on the opposite side of the two support plates 501. The limiting rod 503 is fixedly connected between the damper 502. The sliding frame 504 is slidably connected to the outside of the limiting rod 503. The support plate 2 505 is arranged above the limiting rod 503. The support rod 506 is rotatably connected between the support plate 2 505 and the sliding frame 504. The spring 1 507 is sleeved on the outside of the limiting rod 503 and fixedly connected between the sliding frame 504 and the damper 502.

[0043] When the circuit breaker body 4 is subjected to an external force collision, the circuit breaker body 4 squeezes the support plate 2 505 downward, causing the support rod 506 to rotate, pushing the sliding frame 504 to squeeze the spring 1 507. The spring 1 507 buffers the collision force and reduces the collision damage to the circuit breaker body 4. The spring 1 507 cooperates with the damper 502 to reduce the vibration of the support plate 2 505 when it rebounds, thereby reducing the vibration of the circuit breaker body 4, allowing the circuit breaker body 4 to quickly restore stability and facilitate the normal operation of the circuit breaker body 4.

[0044] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit breaker with a buffer structure, characterized in that: include: A mounting plate (1), wherein four corners of the mounting plate (1) are provided with mounting holes (2) for mounting and fixing, a top end of the mounting plate (1) is fixedly connected to a mounting base (3), and an inner side of the mounting base (3) is slidably connected to a circuit breaker body (4); A buffer structure (5), the buffer structure (5) is arranged on the inner side of the mounting base (3), the buffer structure (5) comprises: a support plate 1 (501), a damper (502), a limit rod (503), a sliding frame (504), a support plate 2 (505), a support rod (506) and a spring 1 (507), the support plate 1 (501) has two pieces and both are fixedly connected to the inner side of the mounting base (3), the damper (502) is fixedly installed on the two support plates 1 (501) On one side, the limiting rod (503) is fixedly connected between the dampers (502), the sliding frame (504) is slidably connected to the outside of the limiting rod (503), the supporting plate 2 (505) is arranged above the limiting rod (503), the supporting rod (506) is rotatably connected between the supporting plate 2 (505) and the sliding frame (504), and the spring 1 (507) is sleeved on the outside of the limiting rod (503) and fixedly connected between the sliding frame (504) and the damper (502); A quick-release structure (6), the quick-release structure (6) being arranged on the front and rear sides of the circuit breaker body (4), and the quick-release structure (6) being capable of being used for installation and removal of the circuit breaker body (4); A connecting wire clamping structure (7) is provided on both the front and rear sides of the circuit breaker body (4), and is used to clamp the connecting wire to prevent the connecting wire connector from breaking.

2. The circuit breaker with a buffer structure according to claim 1, characterized in that: The quick-release structure (6) comprises: A limiting shaft (602), a contraction groove (601) is provided on both the front and rear sides of the circuit breaker body (4), and the limiting shaft (602) is fixedly connected to the inner side of the contraction groove (601); A button (603), wherein the button (603) is slidably connected to the inner side of the first shrinkage groove (601), and the button (603) is slidably connected to the first limiting shaft (602); Spring 2 (604), wherein the spring 2 (604) is sleeved on the outside of the limiting shaft 1 (602) and fixedly connected between the shrinkage groove 1 (601) and the button (603); A connecting rod (605) is fixedly connected to the bottom end of the button (603) and is slidably connected to the first shrinkage groove (601). The bottom end of the connecting rod (605) is fixedly connected to a buckle (606).

3. The circuit breaker with a buffer structure according to claim 1, characterized in that: The connecting wire clamping structure (7) comprises: A support frame (701), the support frame (701) is fixedly connected to the front and rear sides of the circuit breaker body (4), and a second shrinkage groove (702) is further provided on the inner side of the support frame (701), and a second limiting axis (703) is fixedly connected to the inner side of the second shrinkage groove (702); A connecting pipe (704), wherein the connecting pipe (704) is slidably connected to the inner side of the second shrinkage groove (702), and the second shrinkage groove (702) and the connecting pipe (704) are both square; Spring three (705), said spring three (705) is sleeved on the outside of the limiting shaft two (703) and fixedly connected between the shrinkage groove two (702) and the connecting pipe (704); A push button (706), the push button (706) is fixedly connected to the top end of the connecting tube (704), a limiting groove is provided at the top end of the second shrinkage groove (702), and the push button (706) is slidably connected to the inner side of the limiting groove; A clamping ring (707) is slidably connected to one end of the connecting tube (704), and an anti-slip pad is fixedly connected to the inner side of the clamping ring (707).

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