Lightning arrester with moisture-proof structure

Abstract

The utility model relates to the technical field of lightning arresters, and discloses a lightning arrester with a moisture-proof structure, which comprises a lightning arrester body, a mounting seat fixedly connected to the top of the lightning arrester body, a connector fixedly connected to the top of the mounting seat, and a sealing assembly arranged at the top of the mounting seat. In order to avoid poor sealing performance caused by long-time contact between the top part of the equipment and rainwater, a sliding block is clamped into a sliding groove, and a fixing hole corresponds to a limiting hole when a sealing piece is rotated, so that a limiting rod can penetrate through the limiting hole to enter the fixing hole when a positioning rod is pressed, and the sliding block is limited in the sliding groove; the fixing sleeve is sleeved on the end portion of the positioning rod, the fixing sleeve is rotated, and the fixing sleeve is in threaded connection with the threaded sleeve, so that the sealing piece can well protect the top of the lightning arrester body, rainwater can slide towards the periphery through the arc-shaped surface arranged at the top of the sealing piece in rainy days, and the interior of equipment is effectively kept dry.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lightning arresters, in particular to a lightning arrester with a moisture-proof structure. BACKGROUND

[0002] The lightning arrester is an important overvoltage protection appliance in the power system, which prevents lightning overvoltage and various operating overvoltages from attacking and damaging the system and equipment. The lightning arrester is provided with multiple seals, and the seal between the cover plate and the porcelain outer sleeve is the main seal of the lightning arrester, which is used to isolate the internal gas from the external gas and prevent external moisture from entering the internal part of the lightning arrester.

[0003] According to a high-voltage lightning arrester with a glue storage moisture-proof sealing structure (publication number: CN209929072U), two rubber seals and a U-shaped glue storage groove are provided between the cover plate and the porcelain outer sleeve in the above-mentioned application. The external anti-seepage sealing ring of the cover plate and the internal leak-proof sealing ring of the cover plate can independently realize the sealing between the internal and external parts of the lightning arrester. The sealing glue in the U-shaped glue storage groove can supplement the loss of the sealing glue around the sealing ring in a harsh climate environment, thereby enhancing the reliability of the sealing structure.

[0004] However, the acid rain of the above-mentioned high-voltage lightning arrester will accumulate in the mounting seat arranged on the top of the equipment in rainy days, which will cause the acid rain to corrode the sealing ring through the gap between the pressing plate and the cover plate for a long time, thereby possibly causing poor sealing of the equipment. In view of this, we propose a lightning arrester with a moisture-proof structure. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a lightning arrester with a moisture-proof structure to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a lightning arrester with a moisture-proof structure, comprising a lightning arrester body, the lightning arrester body top is fixedly connected with the mounting seat, the mounting seat top is fixedly connected with the connecting head, the mounting seat top is provided with a sealing assembly, the sealing assembly comprises:

[0007] The sliding groove is provided on the outer surface of the mounting seat, the sliding groove is provided in an L shape, the upper surface of the mounting seat is provided with a fixing hole, the sliding groove is provided with a sliding block, and the sliding block is fixedly connected with a sealing element on the side;

[0008] The movable groove is provided in the sealing element, the inner wall of the movable groove is provided with a limiting hole at the bottom, the movable groove is provided with a movable plate inside, the movable plate is fixedly connected with a positioning rod at the top, and the movable plate is fixedly connected with a limiting rod at the bottom.

[0009] The mounting block is fixedly connected at the top of the sealing element, a threaded sleeve is fixedly connected at the top of the mounting block, and a fixing sleeve is threadedly connected to the outer surface of the threaded sleeve.

[0010] Preferably, the top of the sealing element is arc-shaped, and the size of the sealing element is matched with the size of the mounting seat, so that the sealing element can well protect the mounting seat.

[0011] Preferably, the position of the limiting rod corresponds to the position of the limiting hole, and the position of the limiting hole corresponds to the position of the fixing hole, so that the limiting rod can well pass through the limiting hole and enter the fixing hole.

[0012] Preferably, the position of the positioning rod corresponds to the position of the mounting block, and the end of the positioning rod is arranged to penetrate into the top of the movable groove and the mounting block and enter the threaded sleeve, so that the positioning rod can well move in the threaded sleeve, thereby controlling the movement of the movable plate in the movable groove.

[0013] Preferably, the fixing sleeve is provided with a protection assembly at the top, the protection assembly comprises a protection element arranged at the top of the fixing sleeve, a through groove is formed at the bottom of the protection element, a fixing groove is formed at the bottom of the protection element, and a connecting groove is formed at the outer surface of the protection element.

[0014] Preferably, the position of the through groove corresponds to the position of the connecting head, the through groove is communicated with the connecting groove, and the inner wall of the connecting groove is inclined at the bottom.

[0015] Compared with the prior art, the lightning arrester with the moisture-proof structure has the following beneficial effects:

[0016] 1. The lightning arrester with the moisture-proof structure, in order to avoid the poor sealing caused by the long-time contact between the top of the equipment and rainwater, the sliding block is clamped into the sliding groove, the fixing hole and the limiting hole are corresponded by rotating the sealing element, the limiting rod can pass through the limiting hole and enter the fixing hole when the positioning rod is pressed, the sliding block is limited in the sliding groove, the fixing sleeve is sleeved on the end of the positioning rod, the fixing sleeve is threadedly connected with the threaded sleeve by rotating the fixing sleeve, so that the sealing element can well protect the top of the lightning arrester body, and the rainwater can slide to the periphery through the arc-shaped surface arranged at the top of the sealing element when it rains, thereby effectively keeping the inside of the equipment dry.

[0017] 2、The lightning arrester with moisture-proof structure, in order to make the sealing of equipment better, the fixed sleeve is sleeved in the fixed groove, the connecting head is arranged in the through groove, so that the connecting wire can be connected with the connecting head through the connecting groove, so that the contact between rainwater and the connecting head and the connecting wire can be reduced, and when a small amount of rainwater enters the protective piece, it can slide along the inclined surface arranged at the bottom of the connecting groove or drip on the outer surface of the sealing element and then slide, so that the sealing of the equipment is better. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional left view structure schematic diagram of the utility model;

[0019] Figure 2 It is an explosion structure schematic diagram of the utility model;

[0020] Figure 3 It is a body structure schematic diagram of the utility model;

[0021] Figure 4 It is a protective piece structure schematic diagram of the utility model;

[0022] Figure 5 It is an explosion schematic diagram of the sealing assembly.

[0023] In the drawing: 1, lightning arrester body; 2, mounting seat; 3, connecting head; 4, sealing assembly; 401, sliding groove; 402, fixed hole; 403, sliding block; 404, sealing element; 405, movable groove; 406, limiting hole; 407, mounting block; 408, threaded sleeve; 409, movable plate; 410, positioning rod; 411, limiting rod; 412, fixed sleeve; 5, protective assembly; 501, protective piece; 502, through groove; 503, connecting groove; 504, fixed groove. DETAILED DESCRIPTION

[0024] As Figures 1-5 Indicated, the utility model provides a technical scheme: a lightning arrester with moisture-proof structure, including lightning arrester body 1, lightning arrester body 1 top fixedly connected with mounting seat 2, mounting seat 2 top fixedly connected with connecting head 3, and mounting seat 2 top is provided with sealing assembly 4, and sealing assembly 4 includes sliding groove 401, fixed hole 402, sliding block 403, sealing element 404, movable groove 405, limiting hole 406, movable plate 409, positioning rod 410, limiting rod 411, mounting block 407, threaded sleeve 408 and fixed sleeve 412.

[0025] In the embodiment of the utility model, the chute 401 is set on the outer surface of the mounting seat 2, the chute 401 is set in L shape, the fixing hole 402 is set on the upper surface of the mounting seat 2, the sliding block 403 is clamped in the chute 401, the sealing piece 404 is fixedly connected to the side of the sliding block 403, the top of the sealing piece 404 is set in arc shape, the size of the sealing piece 404 is adapted to the size of the mounting seat 2, so that the sealing piece 404 can well protect the mounting seat 2, the movable groove 405 is set in the sealing piece 404, the limit hole 406 is set on the inner wall bottom of the movable groove 405, the position of the limit hole 406 corresponds to the position of the fixing hole 402, so that the limit rod 411 can well pass through the limit hole 406 and enter the inside of the fixing hole 402, the movable plate 409 is sleeved in the movable groove 405, the positioning rod 410 is fixedly connected to the top of the movable plate 409, the position of the positioning rod 410 corresponds to the position of the mounting block 407, the end of the positioning rod 410 is set in penetrating the top of the movable groove 405 and the mounting block 407 and entering the inside of the threaded sleeve 408, so that the positioning rod 410 can well move in the threaded sleeve 408, thereby controlling the movable plate 409 to move in the movable groove 405, the limit rod 411 is fixedly connected to the bottom of the movable plate 409, the position of the limit rod 411 corresponds to the position of the limit hole 406, the mounting block 407 is fixedly connected to the top of the sealing piece 404, the threaded sleeve 408 is fixedly connected to the top of the mounting block 407, and the fixed sleeve 412 is screw-connected to the outer surface of the threaded sleeve 408.

[0026] Meanwhile, the fixed sleeve 412 is provided with the protection assembly 5, the protection assembly 5 comprises the protection piece 501, the protection piece 501 is set on the top of the fixed sleeve 412, the through groove 502 is set on the bottom of the protection piece 501, the position of the through groove 502 corresponds to the position of the connecting head 3, the through groove 502 is communicated with the connecting groove 503, the fixed groove 504 is set on the bottom of the protection piece 501, the connecting groove 503 is set on the outer surface of the protection piece 501, and the inner wall bottom of the connecting groove 503 is set in inclination, so that the fixed sleeve 412 can be sleeved in the fixed groove 504, the connecting head 3 can enter the through groove 502, so that the connecting wire can be connected with the connecting head 3 through the connecting groove 503, so that the contact between the rainwater and the connecting head 3 and the connecting wire can be well reduced, and when a small amount of rainwater enters the inside of the protection piece 501, the rainwater can slide along the inclined surface set on the bottom of the connecting groove 503 or drip on the outer surface of the sealing piece 404 through the through groove 502 and then slide, so that the sealing property of the equipment is better.

[0027] In the utility model, when using, the sliding block 403 is clamped into the inside of the sliding groove 401, the rotating sealing piece 404 is used to make the fixed hole 402 correspond to the limiting hole 406, in this way, when the positioning rod 410 is pressed, the limiting rod 411 passes through the limiting hole 406 and enters the inside of the fixed hole 402, the sliding block 403 is limited in the inside of the sliding groove 401, then the fixed sleeve 412 is sleeved on the end part of the positioning rod 410, the fixed sleeve 412 is rotated, the fixed sleeve 412 is screwed with the threaded sleeve 408, in this way, the sealing piece 404 can well protect the top of the lightning arrester body 1, meanwhile, when it rains, the rainwater can slide to the periphery through the arc surface arranged on the top of the sealing piece 404, thereby effectively keeping the inside of the equipment dry.

[0028] Further, the fixed sleeve 412 is sleeved in the fixed groove 504, the connecting head 3 enters the through groove 502, thereby the connecting wire can be connected with the connecting head 3 through the connecting groove 503, in this way, the rainwater can be well reduced from contacting the connecting head 3 and the connecting wire, and when a small amount of rainwater enters the inside of the protection piece 501, the rainwater can slide along the inclined surface arranged on the bottom of the connecting groove 503 or drip on the outer surface of the sealing piece 404 through the through groove 502 and then slide, in this way, the sealing property of the equipment is better.

[0029] The foregoing has made detailed description to the utility model in general, but some modifications or improvements can be made to the utility model on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the spirit and principles of the utility model is within the protection scope of the utility model.

Claims

1. A surge arrester with a moisture-proof structure, comprising a surge arrester body (1), wherein a mounting base (2) is fixedly connected to the top of the surge arrester body (1), and a connector (3) is fixedly connected to the top of the mounting base (2), characterized in that: The mounting base (2) is provided with a sealing assembly (4) on its top, the sealing assembly (4) comprising: A slide groove (401) is formed on the outer surface of the mounting base (2). The slide groove (401) is L-shaped. A fixing hole (402) is formed on the upper surface of the mounting base (2). A slider (403) is engaged inside the slide groove (401). A sealing element (404) is fixedly connected to the side of the slider (403). A movable groove (405) is formed inside the seal (404). A limiting hole (406) is formed at the bottom of the inner wall of the movable groove (405). A movable plate (409) is sleeved inside the movable groove (405). A positioning rod (410) is fixedly connected to the top of the movable plate (409). A limiting rod (411) is fixedly connected to the bottom of the movable plate (409). Mounting block (407) is fixedly connected to the top of seal (404). A threaded sleeve (408) is fixedly connected to the top of mounting block (407). A fixing sleeve (412) is threadedly connected to the outer surface of the threaded sleeve (408).

2. A surge arrester with a moisture-proof structure according to claim 1, characterized in that: The top of the seal (404) is arc-shaped, and the size of the seal (404) is adapted to the size of the mounting base (2).

3. A surge arrester with a moisture-proof structure according to claim 1, characterized in that: The position of the limiting rod (411) corresponds to the position of the limiting hole (406), and the position of the limiting hole (406) corresponds to the position of the fixing hole (402).

4. A surge arrester with a moisture-proof structure according to claim 1, characterized in that: The position of the positioning rod (410) corresponds to the position of the mounting block (407), and the end of the positioning rod (410) is set inside the threaded sleeve (408) through the top of the movable groove (405) and the mounting block (407).

5. A surge arrester with a moisture-proof structure according to claim 1, characterized in that: The top of the fixed sleeve (412) is provided with a protective component (5), the protective component (5) includes a protective member (501), the protective member (501) is provided on the top of the fixed sleeve (412), the bottom of the protective member (501) is provided with a through groove (502), the bottom of the protective member (501) is provided with a fixing groove (504), and the outer surface of the protective member (501) is provided with a connecting groove (503).

6. A surge arrester with a moisture-proof structure according to claim 5, characterized in that: The position of the through groove (502) corresponds to the position of the connector (3). The through groove (502) communicates with the interior of the connecting groove (503). The bottom of the inner wall of the connecting groove (503) is inclined.

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