CN213752179U

CN213752179U - Metal oxide lightning arrester for protecting direct current system

Info

Publication number: CN213752179U
Application number: CN202023156203.XU
Authority: CN
Inventors: 窦建中; 史建平; 王显著; 张勇
Original assignee: Xi'an Ante High Voltage Electrical Appliance Co ltd
Current assignee: Xi'an Ante High Voltage Electrical Appliance Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-07-20
Anticipated expiration: 2030-12-24

Abstract

The utility model provides a metallic oxide arrester is used in protection of direct current system, including the arrester main part, be equipped with insulating bracket on the outer wall of arrester main part, insulating bracket includes solid fixed ring, gu be equipped with six fixed slots on the fixed ring's the inner wall, gu be connected with the shock attenuation packing ring through a plurality of first shock attenuation pieces on the fixed ring's the inner wall, first shock attenuation piece comprises elasticity shock attenuation portion and elastic connection portion, gu fixed ring's opening part is equipped with the shock attenuation box, the inboard of shock attenuation box is equipped with damper, damper includes the slide, the front and back end of slide is equipped with damping spring and second damper respectively, the second damper comprises wave flexure strip and two L shape connecting plates. The utility model discloses can not only make the arrester and the solid fixed ring between be connected inseparabler, and can effectual buffering absorb the vibrations that the arrester received, the shock attenuation is effectual, has improved the stability of arrester, has reduced the arrester because vibrations and impaired possibility.

Description

Metal oxide lightning arrester for protecting direct current system

Technical Field

The utility model relates to a technical field of metal oxide arrester specifically is a metal oxide arrester is used in direct current system protection.

Background

In the prior art, an insulating bracket is often adopted for mounting the metal oxide arrester, and a clamp of the existing insulating bracket is not provided with a buffer part and is not connected tightly enough with the metal oxide arrester, so that the metal oxide arrester may vibrate in windy weather, and the metal oxide arrester is damaged.

According to patent document No. 201810856708.5, a metal oxide arrester with heat dissipation function is provided, which comprises an outer shell, the hollow insulating cylinder of the equal fixedly connected with in both sides of shell inner wall, the first heat abstractor of the equal fixedly connected with in top and bottom of shell, though can realize the quick heat dissipation to metal oxide arrester, has avoided metal oxide arrester in the use heat not effectively to give off, does not have between the clamp of metal oxide arrester and insulating bracket no cushion part and is connected inseparably enough, leads to the metal oxide arrester probably to appear vibrations in strong wind weather to lead to the impaired condition of metal oxide arrester to take place.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a metal oxide arrester is used in protection of direct current system for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a metal oxide arrester for protecting a direct current system comprises an arrester main body, wherein an insulating bracket is fixedly mounted on the outer wall of the arrester main body and comprises a fixing ring, six fixing grooves are uniformly formed in the inner wall of the fixing ring along the circumference, a damping washer is connected to the inner wall of the fixing ring through a plurality of first damping parts, each first damping part consists of an elastic damping part and an elastic connecting part, the elastic damping parts are matched with the fixing grooves, one end, away from the elastic damping parts, of each elastic connecting part is connected with the outer wall of the corresponding damping washer in an adhesive mode through adhesion, a damping box is mounted at the opening of the fixing ring, a damping assembly is arranged on the inner side of the damping box and comprises a sliding plate, the sliding plate is connected with the inner wall of the damping box in a sliding mode, and a damping spring and a second damping part are mounted at the front end and the rear end of the sliding plate respectively, one end, far away from the sliding plate, of the damping spring is connected with a front sealing plate of the damping box, the second damping piece is composed of a wave-shaped elastic sheet and two L-shaped connecting plates, a longitudinal plate of each L-shaped connecting plate is connected with the wave-shaped elastic sheet, and a transverse plate of each L-shaped connecting plate is connected with the sliding plate.

Further, the guide bar is installed to damping spring's outside symmetry, two the slide is kept away from to the guide bar one end runs through the preceding shrouding that the shock attenuation box and extends to its outside and install the limiting plate, the lateral symmetry that the limiting plate is close to the shock attenuation box is equipped with the shock attenuation gasket.

Furthermore, each protective sleeve is installed at the joint of the guide rod and the front sealing plate of the shock absorption box.

Furthermore, the cushion ring comprises an elastic layer, a wear-resistant layer is arranged on the inner wall of the elastic layer, and a plurality of anti-skid lugs are arranged on the inner wall of the wear-resistant layer.

Furthermore, the mounting plate is installed on the front sealing plate of the damping box, and one side of the mounting plate is connected with the connecting frame through a bolt.

Furthermore, the outer side of the sliding plate is fixedly sleeved with a wear-resistant sleeve.

Furthermore, the cross section of the elastic connecting part is L-shaped.

Furthermore, the cross sections of the fixing ring and the damping washer are arc-shaped.

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

the utility model discloses a through the elasticity of first damper, second damper and damping spring, enable the connection between arrester and the solid fixed ring more closely, through shock-absorbing gasket, first damper, second damper and damping spring, can effectual buffering absorb the vibrations that the arrester received, the shock attenuation is effectual, the effectual stability that improves the arrester to reduced the arrester because the impaired possibility of vibrations; the guide rod has a guide effect and can improve the stability of the structure.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a top view of the structure of the fixing ring and the damping box of the present invention;

FIG. 3 is a sectional view of the shock absorbing washer of the present invention;

fig. 4 is an enlarged view of a region a in fig. 2.

In the figure: 1. a lightning arrester main body; 2. an insulating bracket; 21. a fixing ring; 211. fixing grooves; 22. a shock-absorbing box; 23. mounting a plate; 24. a connecting frame; 3. a cushion ring; 31. an elastic layer; 32. a wear layer; 33. an anti-slip bump; 4. a first damper; 41. an elastic damping part; 42. an elastic connection portion; 5. a shock absorbing assembly; 51. a slide plate; 511. a wear-resistant sleeve; 52. a second damping member; 521. a wave-shaped elastic sheet; 522. an L-shaped connecting plate; 53. a damping spring; 54. a guide bar; 541. a protective sleeve; 55. a limiting plate; 551. shock-absorbing pad.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

An embodiment, please refer to fig. 1, 2 and 4, and a metal oxide arrester for protection of a dc system includes an arrester main body 1, an insulating bracket 2 is fixedly mounted on an outer wall of the arrester main body 1, the insulating bracket 2 includes a fixing ring 21, six fixing grooves 211 are uniformly distributed along a circumference on an inner wall of the fixing ring 21, a damping washer 3 is connected to an inner wall of the fixing ring 21 through a plurality of first damping members 4, each of the first damping members 4 is composed of an elastic damping portion 41 and an elastic connecting portion 42, the elastic damping portion 41 and the elastic connecting portion 42 are made of rubber materials, and have a good buffering protection effect, the elastic damping portion 41 is matched with the fixing grooves 211, and the installation of the damping washer 3 is realized through the matching of the elastic damping portion 41 and the fixing grooves 211, so that the damping washer 3 is convenient to detach and replace, one end of the damping washer 3, which is far away from the elastic damping portion 41, of the elastic connecting portion 42 is adhered to an outer wall of the damping washer 3 through adhesion Close and connect, and the opening part of solid fixed ring 21 installs the shock attenuation box 22, the inboard of shock attenuation box 22 is equipped with damper 5, damper 5 includes slide 51, slide 51 and the inner wall sliding connection of shock attenuation box 22, damper 53 and second damper 52 are installed respectively to the front and back end of slide 51, damper 53 keeps away from the one end of slide 51 and links to each other with the preceding shrouding of shock attenuation box 22, and second damper 52 comprises wave elastic sheet 521 and two L shape connecting plates 522, the longitudinal plate of L shape connecting plate 522 links to each other with wave elastic sheet 521, the diaphragm of L shape connecting plate 522 links to each other with slide 51, during the installation, gu fixed ring 21 overlaps on arrester main body 1, at this moment, arrester main body 1 can extrude first damper 4 and second damper 52, second damper 52 can extrude damper 53, at first damper 4, Under the effect of the elastic force of the second shock absorbing member 52 and the shock absorbing spring 53, the connection between the lightning arrester main body 1 and the fixing ring 21 is more compact, in windy weather, when the lightning arrester main body 1 is vibrated, the shock absorbing washer 3 and the first shock absorbing member 4 can primarily buffer and absorb the shock, then the shock force is transmitted to the shock absorbing spring 53 through the second shock absorbing member 52, the shock absorbing effect is good by utilizing the second shock absorbing member 52 and the shock absorbing spring 53 to further buffer and absorb the shock, the stability of the lightning arrester is effectively improved, the possibility that the lightning arrester is damaged due to the shock is reduced, the mounting plate 23 is mounted on the front sealing plate of the shock absorbing box 22, one side of the mounting plate 23 is connected with the connecting frame 24 through bolts, the insulating bracket 2 is formed by the fixing ring 21, the shock absorbing box 22, the mounting plate 23 and the connecting frame 24, the effect of supporting the lightning arrester main body 1 is achieved, the wear-resistant sleeve 511 is fixedly sleeved on the outer side of the sliding plate 51, the sliding plate 51 is protected by the wear-resistant sleeve 511, the possibility of damage to the sliding plate 51 is reduced, the cross section of the elastic connecting portion 42 is L-shaped, and the cross sections of the fixing ring 21 and the shock-absorbing washer 3 are both arc-shaped.

In an embodiment, referring to fig. 2, the guide rods 54 are symmetrically installed on the outer side of the damping spring 53, the guide rods 54 have a guiding function and can improve the structural stability, one end of each of the two guide rods 54, which is far away from the sliding plate 51, extends through the front sealing plate of the damping box 22 and is provided with a limiting plate 55, the guide rods 54 are limited by the limiting plate 55, one side of the limiting plate 55, which is close to the damping box 22, is symmetrically provided with a damping gasket 551, the damping gasket 551 absorbs an acting force applied when the limiting plate 55 contacts the damping box 22 and has a function of protecting the limiting plate 55, a protecting sleeve 541 is installed at a joint of each of the guide rods 54 and the front sealing plate of the damping box 22, the guide rods 54 are protected by the protecting sleeves 541, and the possibility of damaging the guide rods 54 can be reduced.

In an embodiment, please refer to fig. 2 and 3, the cushion ring 3 includes an elastic layer 31, and the elastic layer 31 can absorb shock in a buffering manner, the inner wall of the elastic layer 31 is provided with a wear-resistant layer 32, the elastic layer 31 and the wear-resistant layer 32 are both made of rubber or silica gel, and the like, so that the wear resistance of the cushion ring 3 is improved through the wear-resistant layer 32, the service life of the cushion ring 3 is prolonged, the inner wall of the wear-resistant layer 32 is provided with a plurality of anti-slip bumps 33, and the friction force between the anti-slip bumps 33 and the arrester main body 1 is increased through the arrangement, so that the connection stability is improved.

The utility model discloses a concrete operation as follows:

firstly, the fixing ring 21 is sleeved on the lightning arrester main body 1, then the installation of the lightning arrester main body 1 is completed through the connecting frame 24 and the bolt, at the moment, the lightning arrester main body 1 can extrude the first damping piece 4 and the second damping piece 52, the second damping piece 52 can extrude the damping spring 53, under the action of elastic forces of the first damping piece 4, the second damping piece 52 and the damping spring 53, the connection between the lightning arrester main body 1 and the fixing ring 21 can be more compact, in windy weather, when the lightning arrester main body 1 is vibrated, vibration can be primarily buffered and absorbed through the damping washer 3 and the first damping piece 4, then vibration force is transmitted to the damping spring 53 through the second damping piece 52, vibration can be further buffered and absorbed by utilizing the second damping piece 52 and the damping spring 53, and the damping effect is good.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. The utility model provides a metal oxide arrester for protection of direct current system, includes arrester main part (1), its characterized in that, fixed mounting has insulating bracket (2) on the outer wall of arrester main part (1), insulating bracket (2) are including solid fixed ring (21), six fixed slots (211) have been gone up along the circumference equipartition on the inner wall of solid fixed ring (21), be connected with damping washer (3) through a plurality of first shock attenuation pieces (4) on the inner wall of solid fixed ring (21), every first shock attenuation piece (4) are constituteed by elasticity shock attenuation portion (41) and elasticity connecting portion (42), elasticity shock attenuation portion (41) and fixed slot (211) cooperate, the one end that elasticity shock attenuation portion (41) was kept away from in elasticity connecting portion (42) is connected through the outer wall bonding of sticky and damping washer (3), just damping box (22) are installed to the opening part of solid fixed ring (21), the inboard of shock attenuation box (22) is equipped with damper (5), damper (5) include slide (51), the inner wall sliding connection of slide (51) and shock attenuation box (22), damping spring (53) and second damper (52) are installed respectively to the front and back end of slide (51), damping spring (53) are kept away from the one end of slide (51) and are linked to each other with the preceding shrouding that shocks attenuation box (22), just second damper (52) comprise wave elastic sheet (521) and two L shape connecting plates (522), the longitudinal plate of L shape connecting plate (522) links to each other with wave elastic sheet (521), the diaphragm of L shape connecting plate (522) links to each other with slide (51).

2. The metal oxide arrester for protecting the direct current system according to claim 1, wherein the outer sides of the damping springs (53) are symmetrically provided with guide rods (54), one ends of the two guide rods (54) far away from the sliding plate (51) extend through the front sealing plate of the damping box (22) to the outer sides of the front sealing plate and are provided with limiting plates (55), and one sides of the limiting plates (55) close to the damping box (22) are symmetrically provided with damping gaskets (551).

3. A metallic oxide arrester for dc system protection according to claim 2 characterized in that a protective sheath (541) is installed at the connection of each guide rod (54) and the front sealing plate of the damping box (22).

4. A metal oxide arrester as claimed in claim 1, characterized in that the damping washer (3) comprises an elastic layer (31), a wear layer (32) is provided on the inner wall of the elastic layer (31), and a plurality of anti-slip protrusions (33) are provided on the inner wall of the wear layer (32).

5. A metal oxide arrester as claimed in claim 1, wherein the damping box (22) has a mounting plate (23) mounted on its front plate, and the mounting plate (23) has a connecting bracket (24) bolted to one side thereof.

6. A metallic oxide lightning arrester as claimed in claim 1, characterized in that the outer side of the sliding plate (51) is fixedly sleeved with a wear-resistant sleeve (511).

7. A metal oxide arrester as claimed in claim 1, characterized in that the resilient connecting part (42) is L-shaped in cross-section.

8. A metal oxide arrester as claimed in claim 1, characterized in that the cross-sections of the fixing ring (21) and the damping washer (3) are arc-shaped.