CN218971738U

CN218971738U - Shock-resistant structure of breaker port withstand voltage test device

Info

Publication number: CN218971738U
Application number: CN202223134823.2U
Authority: CN
Inventors: 李斌; 邱航杰; 曹典; 何涛; 彭卓; 吴江; 侯小静; 倪志伟; 冯聪聪
Original assignee: Hunan Electric Power Research Institute Testing Group Co ltd
Current assignee: Hunan Electric Power Research Institute Testing Group Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-05-05
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses an anti-seismic structure of a circuit breaker port withstand voltage test device, which comprises a shell, wherein the shell is sleeved outside a test main body, a buffer spring is arranged at the bottom of the shell, a top plate is arranged at the top of the buffer spring, the top of the top plate is contacted with the bottom of the test main body, bearing lugs are formed on the upper parts of the inner walls of the two sides of the shell in a protruding mode, a third buffer spring is arranged at the top of the bearing lugs, a limiting block is connected to the top of the third buffer spring, one side, close to the inner wall of the shell, of the limiting block is connected with one side of a second buffer spring, and the other side of the second buffer spring is arranged between an upper bottom plate and the top plate of the inner wall of the shell, and pretension lacing wires are arranged between the bearing lugs and the limiting block. The utility model has the advantages that the main body of the test equipment is not in direct contact with the shell, the transverse buffer spring is arranged, the transverse vibration is reduced, and the contact between the test equipment and the shell is elastic contact by matching with the longitudinal pretensioning lacing wire and the buffer spring, so that the vibration when the test equipment is placed in the shell is reduced.

Description

Shock-resistant structure of breaker port withstand voltage test device

Technical Field

The utility model relates to the technical field of high-voltage circuit breaker tests, in particular to an anti-seismic structure of a circuit breaker port withstand voltage test device.

Background

The patent with publication number CN213780268U discloses a high-voltage breaker port withstand voltage test device, solves the problem that when the test device is in use, the test device is taken out for maintenance after faults occur, and vibration generated when the test device is assembled again causes looseness to a circuit inside the test device to cause faults again.

However, this construction can cause wear to both when the test device is placed in the housing; and can't guarantee in actual production that there is not the gap between shell and the test equipment, there is horizontal vibrations to produce this moment, and the contact of test device and shell is hard contact, still has the influence to instrument and the circuit inside the test equipment.

Disclosure of Invention

The utility model aims at overcoming the technical defects existing in the prior art and discloses an anti-seismic structure of a circuit breaker port withstand voltage test device.

In order to achieve the purpose of the utility model, the technical scheme adopted by the utility model is as follows:

the utility model provides a withstand voltage test device earthquake-resistant structure of circuit breaker port, includes shell and test main part, its characterized in that: the shell is sleeved outside the test main body, at least three supporting columns are circumferentially arranged at the center of the bottom of the shell, the tops of the supporting columns are connected with a bottom plate, first buffer springs are installed at four corners of the bottom plate, a top plate is installed at the top of each first buffer spring, the top of each top plate is contacted with the bottom of the test main body, bearing bumps are formed on the upper parts of the inner walls of the two sides of the shell in a protruding mode, third buffer springs are installed at the tops of the bearing bumps, limiting blocks are connected to the tops of the third buffer springs, one side, close to the inner walls of the shell, of each limiting block is connected with one side of each second buffer spring, and the other side of each second buffer spring is installed on the inner walls of the shell; the test main body top is protruding to be formed with spacing lug, forms the clearance between spacing lug lateral wall and the shell inner wall, spacing lug bottom and stopper top contact, is provided with pretension lacing wire between bottom plate and roof, bearing lug and the stopper.

Further, a damper is arranged on the pretensioning tendon.

Further, two third buffer springs are installed at bearing lug top, and stopper bottom is all connected to two third buffer springs.

Further, a gap is arranged between the two third buffer springs.

Further, a handle is arranged at the top of the limit lug.

Further, through holes are formed in the middle of two symmetrical side walls of the shell, an air inlet fan is arranged in the left through hole, and an air outlet fan is arranged in the right through hole.

Further, the air inlet fan and the air outlet fan are both connected with a motor, and the motor is installed on the side wall of the shell through an L-shaped installation rod.

Furthermore, the outer sides of the air inlet fan and the air outlet fan are respectively provided with a filter screen.

Compared with the prior art, the utility model has the advantages that:

the test equipment main body is not in direct contact with the shell, the transverse buffer spring is arranged, transverse vibration is reduced, the longitudinal buffer spring is matched with the pretension lacing wire, the test equipment is in elastic contact with the shell, and vibration when the test equipment is placed in the shell is reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

wherein: 1. the test equipment comprises a shell, 2, a test equipment body, 3, a support column, 4, a bottom plate, 5, a buffer spring, 6, a bearing lug, 7, a top plate, 8, a limiting block, 9, a mounting rod, 10, a motor, 11, an air inlet fan, 12, an air outlet fan, 13, a filter screen, 14, a handle, 15, a second buffer spring, 16, a third buffer spring, 17, a limiting lug, 18, a pretension rib, 19 and a damper.

Detailed Description

The utility model is described in further detail below with reference to the drawings and the specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Example 1

The utility model provides a breaker port withstand voltage test device shock-resistant structure, including shell 1 and test main part 2, shell 1 cover is located outside the test main part 2, shell 1 bottom central point puts and circumference is provided with three piece at least support column 3, support column 3 top is connected with bottom plate 4, first buffer spring 5 is all installed to the bottom plate four corners, roof 7 is installed at first buffer spring 5 top, roof 7 top and test main part 2 bottom contact, shell 1 both sides inner wall upper portion protruding shaping has bearing lug 6, bearing lug 6 top is installed third buffer spring 16, stopper 8 is connected at third buffer spring 16 top, stopper 8 is close to shell 1 inner wall one side and is connected with second buffer spring 15 one side, second buffer spring 15 opposite side is installed on shell 1 inner wall; the top of the test main body 2 is convexly provided with a limit lug 17, a gap is formed between the side wall of the limit lug 17 and the inner wall of the shell 1, the bottom of the limit lug 17 is contacted with the top of the limit block 8, and pretension steel bars 18 are arranged between the bottom plate 4 and the top plate 7 and between the bearing lug 6 and the limit block 8. The first buffer spring 5 and the third buffer spring 16 are matched with the pretension tie bar 18 to effectively relieve vibration, and meanwhile, the second buffer spring 15 is transversely arranged to ensure that the test main body 2 is in elastic contact with the shell 1 in the transverse contact manner, so that abrasion between the test main body 2 and the shell 1 due to friction is avoided.

A damper 19 is mounted on the pretensioning bar 18. The damper 19 is mounted to further dampen the shock.

Two third buffer springs 16 are installed at the top of the bearing lug 6, and the bottom of the limiting block 8 is connected with the two third buffer springs 16. The setting of two third buffer springs 16 can be better prevent that the third buffer springs 16 that lead to because the weight of test main part 2 bends too big and lead to the cushioning effect too poor, and the weight of test main part 2 can be better to a certain extent to two third buffer springs 16.

A gap is provided between the two third cushion springs 16. The provision of the gap prevents the two third buffer springs 16 from getting too close together, and when the elastic deformation occurs, the two springs are stuck to each other, resulting in deterioration of the buffer effect.

The top of the limit bump 17 is provided with a handle 14. The handle 14 is provided to facilitate separation of the test body 2 from the housing 1.

Through holes are formed in the middle of two symmetrical side walls of the shell 1, an air inlet fan 11 is arranged in the left through hole, and an air outlet fan 12 is arranged in the right through hole. The air inlet fan 11 and the air outlet fan 12 are connected with a motor 10, and the motor 10 is mounted on the side wall of the shell 1 through an L-shaped mounting rod 9. The setting of air inlet fan 11 and air outlet fan 12 can cool down test main part 2, prevents the test deviation that the temperature caused in the test process is too high even to the damage of instrument itself.

The outside of the air inlet fan 11 and the air outlet fan 12 are provided with filter screens. Can effectively prevent sundries such as dust from entering the gap between the main body of the test 2 and the shell 1 along the air flow generated by the fan.

In the test process, when faults occur, the test main body 2 is taken out for maintenance, when the test main body 2 is put back into the shell 1, the bottom of the test main body 2 is in contact with the top plate 7, the limiting lug 17 is in contact with the limiting block 8, under the combined action of the first buffer spring 5 and the third buffer spring 16, longitudinal kinetic energy is absorbed due to deformation of the springs, but part of transverse kinetic energy is still absorbed by the second spring 15, the whole test main body 2 is buffered, the contact between test equipment and the shell is elastic contact, and vibration when the test equipment is put into the shell is reduced.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a withstand voltage test device shock-resistant structure of circuit breaker port, includes shell (1) and test main part (2), its characterized in that: the test device comprises a test main body (2), a shell (1) is sleeved outside the test main body (2), at least three support columns (3) are circumferentially arranged at the center of the bottom of the shell (1), a bottom plate (4) is connected to the tops of the support columns (3), first buffer springs (5) are respectively arranged at four corners of the bottom plate (4), a top plate (7) is arranged at the top of each first buffer spring (5), the tops of the top plates (7) are in contact with the bottom of the test main body (2), bearing lugs (6) are formed on the upper parts of the inner walls of the two sides of the shell (1) in a protruding mode, third buffer springs (16) are arranged at the tops of the bearing lugs (6), limiting blocks (8) are connected to the tops of the third buffer springs (16), one side, close to the inner wall of the shell (1), of each limiting block (8) is connected to one side of each second buffer spring (15), and the other side of each second buffer spring (15) is arranged on the inner wall of the shell (1). The test main body (2) is provided with a limiting lug (17) in a protruding mode, a gap is formed between the side wall of the limiting lug (17) and the inner wall of the shell (1), the bottom of the limiting lug (17) is in contact with the top of the limiting block (8), and pretension lacing wires (18) are arranged between the bottom plate (4) and the top plate (7) and between the bearing lug (6) and the limiting block (8).

2. The shock-resistant structure of a circuit breaker port withstand voltage test apparatus as claimed in claim 1, wherein: a damper (19) is arranged on the pretensioning tendon (18).

3. The shock-resistant structure of a circuit breaker port withstand voltage test apparatus as claimed in claim 1, wherein: two third buffer springs (16) are installed at the top of the bearing lug (6), and the bottom of the limiting block (8) is connected with the two third buffer springs (16).

4. The shock-resistant structure of a circuit breaker port withstand voltage test apparatus as claimed in claim 2, wherein: a gap is arranged between the two third buffer springs (16).

5. The shock-resistant structure of a circuit breaker port withstand voltage test apparatus as claimed in claim 1, wherein: the top of the limit lug (17) is provided with a handle (14).

6. The shock-resistant structure of a circuit breaker port withstand voltage test apparatus as claimed in claim 1, wherein: the middle parts of two symmetrical side walls of the shell (1) are respectively provided with a through hole, an air inlet fan (11) is arranged in the left through hole, and an air outlet fan (12) is arranged in the right through hole.

7. The shock-resistant structure of a circuit breaker port voltage withstand test device as recited in claim 6, wherein: the air inlet fan (11) and the air outlet fan (12) are both connected with a motor (10), and the motor (10) is installed on the side wall of the shell (1) through an L-shaped installation rod (9).

8. The shock-resistant structure of a circuit breaker port voltage withstand test device as recited in claim 6, wherein: the outer sides of the air inlet fan (11) and the air outlet fan (12) are respectively provided with a filter screen.