CN217086459U - Special buffering damping device for circuit breaker - Google Patents

Abstract

The utility model belongs to the technical field of breaker closing buffering, and particularly discloses a special buffer damping device for a breaker, which comprises a fixed seat; the fixed seat comprises a mounting plate and two side plates; a U-shaped connecting frame is arranged in the fixed seat; a cushion pad is arranged on the mounting plate, coincident through holes are formed in the cushion pad and the mounting plate, guide pipes are arranged in the through holes, and the guide pipes are fixedly connected with the inner wall of the through holes; the guide pipe is internally provided with a spring, the end part of the guide pipe is provided with a fastening screw, the fastening screw is fixedly connected with the guide pipe, one end of the spring is fixedly connected with the fastening screw, the other end of the spring is provided with a buffer block, and the buffer block is fixedly connected with the U-shaped connecting frame. The utility model discloses a multistage buffering principle has avoided the combined floodgate spring, effectively eliminates mechanical motion residual force, especially is suitable for and requires down the effect obvious with the high bounce back of short stroke, and simple structure, has eliminated the defect that the manufacturing degree of difficulty is big.

Description

Special buffering damping device for circuit breaker

Technical Field

The utility model belongs to the technical field of the buffering of circuit breaker combined floodgate, in particular to special buffering damping device of circuit breaker.

Background

In the switching-on process of the vacuum circuit breaker, the moving contact and the static contact are in rigid impact, and the moving contact system has great kinetic energy in the motion process, so that the moving contact and the static contact cannot be kept in continuous contact well after being in impact contact, the moving contact can rebound, switching-on bounce can exist, the distance between the moving contact and the static contact is too close in a moment, and the discharge is easy. Therefore, in the closing process, a buffer is needed to release force, and closing bounce is avoided as much as possible. Most of the existing buffering and damping mechanisms are springs or fillers, and the buffering and damping mechanisms are adjusted and maintained for many times in use, so that the working efficiency is reduced.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a new special buffer damping device for a circuit breaker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that the circuit breaker caused combined floodgate spring among the prior art easily, provide a special buffering damping device of circuit breaker.

The utility model provides a special buffer damping device for a circuit breaker, which comprises a fixed seat;

the fixed seat comprises an installation plate and two side plates, and the two side plates are respectively and fixedly connected with the installation plate;

a U-shaped connecting frame is arranged in the fixed seat and fixedly connected with the two side plates;

a cushion pad is arranged on the mounting plate, coincident through holes are formed in the cushion pad and the mounting plate, a guide pipe is arranged in each through hole, and the guide pipe is fixedly connected with the inner wall of each through hole;

be provided with the spring in the stand pipe, the stand pipe tip is provided with fastening screw, fastening screw with stand pipe fixed connection, the one end of spring with fastening screw fixed connection, the other end of spring is provided with the buffer block, the buffer block with U-shaped link fixed connection.

The spring extends to the outside of the guide pipe, one end of the spring, which is far away from the fastening screw, is abutted against the buffer block, one side of the buffer block, which is close to the spring, is provided with a groove, and one end of the spring, which is far away from the fastening screw, is fixedly arranged in the groove.

The further scheme is that the buffer block is made of aluminum alloy.

In a further scheme, the buffer pad is made of silicon rubber.

The further proposal is that the U-shaped connecting frame is fixedly connected with the two side plates through bolts.

The further scheme is that a mounting screw is fixedly arranged at the top of the U-shaped connecting frame and used for mounting external equipment.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a multistage buffering principle has avoided the combined floodgate spring, effectively eliminates mechanical motion residual force, and especially suitable and short stroke high bounce require down the effect obvious, and simple structure, eliminated the defect that the manufacturing degree of difficulty is big, non-maintaining, reinforcing life to with the spring setting inside the deflector, can guarantee the axial stability of spring when the atress.

Drawings

The following drawings are merely illustrative of and explanatory of the invention and are not intended to limit the scope of the invention, wherein:

FIG. 1: the utility model has a schematic internal structure;

FIG. 2: the utility model has a schematic structure;

FIG. 3: the fixing base is schematically shown in the figure.

Detailed Description

In order to make the objects, technical solutions, design methods, and advantages of the present invention more clear, the present invention will be further described in detail by the following embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1-3, the utility model provides a special buffer damping device for a circuit breaker, which comprises a fixed seat 1; the fixed seat 1 comprises a mounting plate 9 and two side plates 10, and the two side plates 10 are respectively fixedly connected with the mounting plate 9; a U-shaped connecting frame 2 is arranged in the fixed seat 1 and fixedly connected with the two side plates 10; a cushion pad 4 is arranged on the mounting plate 9, coincident through holes are formed in the cushion pad 4 and the mounting plate 9, a guide pipe 6 is arranged in each through hole, and the guide pipe 6 is fixedly connected with the inner wall of each through hole; the utility model discloses a solar energy water heater, including guide tube 6, U-shaped link, spring 5, 6 tip of guide tube are provided with fastening screw 7, fastening screw 7 with 6 fixed connection of guide tube, the one end of spring 5 with fastening screw 7 fixed connection, the other end of spring 5 are provided with buffer block 3, buffer block 3 with 2 fixed connection of U-shaped link, wherein buffer block 3 is the aluminum alloy, and buffer block 4 is silicon rubber, the U-shaped link with two curb plates 10 pass through bolt fixed connection. And the top of the U-shaped connecting frame 2 is fixedly provided with a mounting screw 8 for mounting external equipment, such as the mounting of an arc striking strip or the fixing of a buffer device.

In order to realize multi-stage buffering, the spring 5 extends to the outside of the guide pipe 6, one end, far away from the fastening screw 7, of the spring 5 is abutted to the buffer block 3, a groove is formed in one side, close to the spring, of the buffer block 3, and one end, far away from the fastening screw 7, of the spring is fixedly arranged in the groove.

It should be understood that when the buffer block is subjected to external force, the buffer block slides along the U-shaped connecting frame to apply pressure to the spring, and when the spring is in a compressed state, the buffer block is abutted to the buffer pad to realize multi-stage buffering.

The utility model discloses when using, the moving contact of circuit breaker and static contact combined floodgate are in the twinkling of an eye, and on the moving contact touched the buffer block, carry out the buffering of first step, the buffer block exerted pressure to the spring, and the spring is compressed and is realized the buffering of second step, and on one side butt of buffer block received the buffer pad, realize the buffering of third step, and the buffering through multistage carries out the discharge capacity to the moving contact, has avoided combined floodgate spring.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (7)

1. A special buffer damping device for a circuit breaker is characterized by comprising a fixed seat (1);

the fixing seat (1) comprises a mounting plate (9) and two side plates (10), wherein the two side plates (10) are respectively and fixedly connected with the mounting plate (9);

a U-shaped connecting frame (2) is arranged in the fixed seat (1), and the U-shaped connecting frame is fixedly connected with the two side plates (10);

a cushion pad (4) is arranged on the mounting plate (9), coincident through holes are formed in the cushion pad (4) and the mounting plate (9), a guide pipe (6) is arranged in each through hole, and the guide pipe (6) is fixedly connected with the inner wall of each through hole;

be provided with spring (5) in stand pipe (6), stand pipe (6) tip is provided with fastening screw (7), fastening screw (7) with stand pipe (6) fixed connection, the one end of spring (5) with fastening screw (7) fixed connection, the other end of spring (5) is provided with buffer block (3), buffer block (3) with U-shaped link (2) sliding connection.

2. The special buffer and shock absorption device for the circuit breaker as claimed in claim 1, wherein the spring (5) extends to the outside of the guide tube (6), and one end of the spring (5) far away from the fastening screw (7) is abutted with the buffer block (3).

3. The special buffering and damping device for the circuit breaker according to claim 2, wherein a groove is formed in one side of the buffering block (3) close to the spring, and one end of the spring far away from the fastening screw (7) is fixedly arranged in the groove.

4. The special buffer and shock absorption device for the circuit breaker as claimed in claim 1, wherein the buffer block (3) is an aluminum alloy.

5. The special buffer and shock-absorbing device for circuit breaker as claimed in claim 1, wherein said buffer pad (4) is silicon rubber.

6. The special buffering and damping device for the circuit breaker as claimed in claim 1, wherein the U-shaped connecting frame is fixedly connected with the two side plates (10) through bolts.

7. The special buffering and damping device for the circuit breaker as claimed in claim 1, wherein a mounting screw (8) is fixedly arranged at the top of the U-shaped connecting frame (2) for mounting of external equipment.

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