Detachable drop type lightning arrester

Abstract

The utility model discloses a detachable drop type lightning arrester which comprises a shock absorber body, a pull ring is installed on the side face of the shock absorber body, a connecting plate is installed on the upper portion of the shock absorber body, an insulating column is installed on the portion, located on the side face of the shock absorber body, of the lower portion of the connecting plate, and a connecting block is fixedly installed on the lower portion of the insulating column. A fixing block is installed at the position, outside the connecting block, of the lower portion of the insulating column, the connecting block is clamped in the fixing block, a plurality of first clamping blocks are installed on the lower surface of the connecting block, a base plate is movably installed in the fixing block, and a plurality of second clamping blocks are installed at the position, corresponding to the first clamping blocks, of the upper portion of the base plate. According to the lightning arrester fixing device, the lightning arrester can be stably and conveniently fixed to the fixing block through cooperation of the clamping assemblies, the installation stability of the lightning arrester is guaranteed, and meanwhile the installation efficiency of the lightning arrester is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lightning arresters, in particular to a detachable drop type lightning arrester. BACKGROUND

[0002] The drop type lightning arrester is a device that is modified from a distribution type zinc oxide lightning arrester and is skillfully installed on the drop type mechanism of a drop type fuse. Its main function is to facilitate the detection, maintenance and replacement of the lightning arrester through the insulation pull lever in the case of uninterrupted power supply, so as to ensure the smoothness of the line and reduce the working intensity and time of the power maintenance personnel.

[0003] The working principle of the drop type lightning arrester is similar to that of the fuse. When the lightning arrester is abnormal or fails, the disconnector is actuated by the power frequency short-circuit current, the grounding end is automatically disconnected, the lightning arrester element is turned over and falls, and the operation is exited, thereby preventing the accident from further expanding. This design enables the lightning arrester to be automatically isolated when a fault occurs, so that the maintenance personnel can easily find and maintain and replace it in time. The drop type lightning arrester is installed on the mechanism of the drop type fuse, so that the lightning arrester can be conveniently detected, maintained and replaced in the case of uninterrupted power supply. The design increases the disconnector, which has the advantages of fast action speed, wide action current range, resistance to specified current impact and action load.

[0004] According to the authorized announcement number CN 213660104 U, a drop type lightning arrester is disclosed, which comprises an insulating support and a lightning arrester body, the lower end of the insulating support is provided with a mounting bracket, the lower end of the lightning arrester body is connected with the mounting bracket through a rotating assembly, characterized in that a rotating groove and a limiting hole are arranged on the mounting bracket, the rotating groove and the limiting hole are communicated through a channel; the rotating assembly comprises a first rotating piece, the first rotating piece is rotationally connected with the lightning arrester body, a rotating shaft and a limiting rod are arranged on the first rotating piece; the rotating shaft rotates in the rotating groove, and the limiting rod slides in the limiting hole. Through the above technical scheme, the problem of safety hazard caused by the drop type lightning arrester falling to the ground is solved.

[0005] The existing drop type lightning arrester needs to be fixed and installed through fixing bolts during installation, which makes it very inconvenient to replace and disassemble the drop type lightning arrester, affecting the installation efficiency, so a new detachable drop type lightning arrester is needed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a detachable drop type lightning arrester, which is convenient for the installation and disassembly of the lightning arrester by the clamping assembly arranged in the interior of the fixing block, so as to solve the technical problems mentioned in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model provides a detachable drop type lightning arrester, including the shock absorber body, the side of shock absorber body is equipped with the pull ring, the upper portion of shock absorber body is equipped with the connecting plate, the lower portion of connecting plate is located the side of shock absorber body and is equipped with the insulating column,

[0009] The lower part of the insulating column is fixedly installed with a connecting block, the lower part of the insulating column is externally installed with a fixed block on the connecting block, the connecting block is clamped in the fixed block, the lower surface of the connecting block is installed with a plurality of groups of first clamping blocks, the inner part of the fixed block is movably installed with a backing plate, the upper part of the backing plate is installed with a plurality of groups of second clamping blocks corresponding to the first clamping blocks, and the plurality of groups of first clamping blocks and the corresponding second clamping blocks are staggered.

[0010] Preferably, an active slot is formed in the middle part of the fixed block at the lower part of the backing plate, and a push plate is installed in the inner part of the active slot at the lower part of the backing plate.

[0011] Preferably, the lower part of the push plate is installed with a plurality of groups of telescopic columns on the lower surface in the inner part of the active slot, and each group of telescopic columns is externally installed with a first spring.

[0012] Preferably, a circular slot is formed in the middle part of the fixed block at the upper part of the active slot, a push rod is movably installed in the inner part of the circular slot, and the bottom of the push rod is connected to the upper surface of the push plate.

[0013] Preferably, two groups of limiting blocks are symmetrically installed on the two sides of the connecting block, two groups of sliding grooves are formed in the inner part of the fixed block corresponding to the limiting blocks, and each group of limiting blocks is slidingly installed in the inner part of the corresponding sliding groove.

[0014] Preferably, two groups of deformation slots are symmetrically formed on the two sides of the connecting block, a second spring is installed in the middle part of each group of deformation slots, and one end of each group of second springs is installed with a positioning rod in the inner part of the corresponding deformation slot.

[0015] Preferably, two groups of installation slots are formed in the two sides of the fixed block corresponding to the positioning rods, and each group of positioning rods is movably installed in the inner part of the corresponding installation slot.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] The connecting block at the lower part of the insulating column is aligned with the fixed block, the connecting block is pushed to move to the inner part of the fixed block, the first clamping block contacts the second clamping block and pushes it to move downward, the second clamping block pushes the backing plate to move up and down, after the connecting block is pushed into the inner part of the fixed block, the second clamping block abuts against and clamps the first clamping block, so that the connecting block is fixed in the inner part of the fixed block, the lightning arrester can be stably and conveniently fixed on the fixed block through the cooperation between the clamping assemblies, the installation stability of the lightning arrester is ensured, and the installation efficiency of the lightning arrester is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram showing the disassembled lower structure of the insulating column of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the connecting block of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the fixing block of this utility model.

[0022] In the diagram: 1. Surge arrester body; 2. Pull ring; 3. Connecting plate; 4. Insulating column; 5. Connecting block; 6. Fixing block; 7. First locking block; 8. Pad plate; 9. Second locking block; 10. Movable groove; 11. Push plate; 12. Telescopic column; 13. First spring; 14. Push rod; 15. Limiting block; 16. Slide groove; 17. Second spring; 18. Positioning rod; 19. Mounting groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides: a detachable drop-out surge arrester, such as... Figures 1-4 As shown, it includes a shock absorber body 1, a pull ring 2 installed on the side of the shock absorber body 1, a connecting plate 3 installed on the upper part of the shock absorber body 1, and an insulating column 4 installed on the lower part of the connecting plate 3 on the side of the shock absorber body 1.

[0025] A connecting block 5 is fixedly installed at the lower part of the insulating column 4. A fixing block 6 is installed at the lower part of the insulating column outside the connecting block 5. The connecting block 5 is snapped into the inside of the fixing block 6. Several sets of first locking blocks 7 are installed on the lower surface of the connecting block 5. A pad 8 is movably installed inside the fixing block 6. Several sets of second locking blocks 9 are installed on the upper part of the pad 8 corresponding to the first locking blocks 7. The several sets of first locking blocks 7 and the corresponding second locking blocks 9 are staggered.

[0026] As preferred, the middle part of the fixed block 6 is provided with a movable slot 10 at the lower part of the base plate 8, the lower part of the base plate 8 is provided with a push plate 11 inside the movable slot 10, the movable slot 10 at the lower part of the fixed block 6 is used for the movable connection between the base plate 8 and the push plate 11, and is also used for installing the telescopic column 12 and the first spring 13, the push plate 11 at the lower part of the base plate 8 is used for pushing the telescopic column 12 and the first spring 13 to move downward, so that the upper base plate 8 and the second clamping block 9 move up and down.

[0027] Further, the lower surface of the push plate 11 inside the movable slot 10 is provided with a plurality of groups of telescopic columns 12, the outer part of each group of telescopic columns 12 is provided with a first spring 13, when the first clamping block 7 contacts the second clamping block 9, the second clamping block 9 and the base plate 8 move downward, pushing the telescopic column 12 and the first spring 13 at the lower part to compress, when pushed into the fixed block 6, the first spring 13 releases the push to the second clamping block 9 to clamp the first clamping block 7, so that the connecting block 5 is fixed on the fixed block 6.

[0028] Further, the upper part of the movable slot 10 is provided with a circular slot at the middle part of the fixed block 6, the push rod 14 is movably installed inside the circular slot, the bottom of the push rod 14 is connected to the upper surface of the push plate 11, the push rod 14 inside the circular slot is used for pushing the push plate 11 to move downward, pushing the telescopic column 12 and the first spring 13 to move downward, so as to pull the lightning arrester to make the connecting block 5 separate from the fixed block 6, and the lightning arrester is removed.

[0029] It is worth mentioning that the two sides of the connecting block 5 are symmetrically provided with two groups of limiting blocks 15, the inner part of the fixed block 6 is provided with two groups of sliding grooves 16 corresponding to the limiting blocks 15, each group of limiting blocks 15 is slidingly installed inside the corresponding sliding groove 16, the limiting block 15 cooperates with the sliding groove 16, so that the connecting block 5 cannot vertically separate from the fixed block 6, and the stability of the lightning arrester installation is ensured.

[0030] Specifically, the two sides of the connecting block 5 are symmetrically provided with two groups of deformation slots, the middle part of each group of deformation slots is provided with a second spring 17, one end of each group of second springs 17 is provided with a positioning rod 18 inside the corresponding deformation slot, the deformation slot is used for installing the second spring 17 and the positioning rod 18, when the connecting block 5 is pushed into the fixed block 6, the inner wall of the fixed block 6 compresses the positioning rod 18, so that the second spring 17 retracts, when sliding into the installation slot 19, the second spring 17 pushes the push rod 18 into the installation slot 19.

[0031] More specifically, the two sides of the fixed block 6 are provided with two groups of installation slots 19 corresponding to the positioning rods 18, each group of positioning rods 18 is movably installed inside the corresponding installation slot 19, through the cooperation of the limiting block 15 and the sliding groove 16, the positioning rod 18 and the installation slot 19, the stability of the lightning arrester in the vertical direction is increased, and it is ensured that the lightning arrester can be stably installed on the upper part of the fixed block 6.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A detachable drop-out surge arrester, comprising a shock absorber body (1), characterized in that: A pull ring (2) is installed on the side of the shock absorber body (1), a connecting plate (3) is installed on the upper part of the shock absorber body (1), and an insulating column (4) is installed on the lower part of the connecting plate (3) on the side of the shock absorber body (1). A connecting block (5) is fixedly installed on the lower part of the insulating column (4). A fixing block (6) is installed on the lower part of the insulating column outside the connecting block (5). The connecting block (5) is snapped into the inside of the fixing block (6). Several sets of first locking blocks (7) are installed on the lower surface of the connecting block (5). A pad (8) is movably installed inside the fixing block (6). Several sets of second locking blocks (9) are installed on the upper part of the pad (8) corresponding to the first locking blocks (7). Several sets of first locking blocks (7) and corresponding second locking blocks (9) are staggered.

2. The detachable drop-out surge arrester according to claim 1, characterized in that: The middle part of the fixing block (6) is provided with a movable groove (10) located at the lower part of the pad (8), and a push plate (11) is installed inside the movable groove (10) at the lower part of the pad (8).

3. A detachable drop-out surge arrester according to claim 2, characterized in that: The lower part of the push plate (11) is located on the lower surface inside the movable groove (10) and a number of sets of telescopic columns (12) are installed thereon. Each set of telescopic columns (12) is equipped with a first spring (13) on its outside.

4. A detachable drop-out surge arrester according to claim 3, characterized in that: The upper part of the movable groove (10) is provided with a circular groove in the middle of the fixed block (6). A push rod (14) is movably installed inside the circular groove. The bottom of the push rod (14) is connected to the upper surface of the push plate (11).

5. A detachable drop-out surge arrester according to claim 4, characterized in that: Two sets of limiting blocks (15) are symmetrically installed on both sides of the connecting block (5). The inside of the fixing block (6) is provided with two sets of sliding grooves (16) corresponding to the limiting blocks (15). Each set of limiting blocks (15) is slidably installed inside the corresponding sliding groove (16).

6. A detachable drop-out surge arrester according to claim 5, characterized in that: Two sets of deformation grooves are symmetrically opened on both sides of the connecting block (5). A second spring (17) is installed in the middle of each set of deformation grooves. A positioning rod (18) is installed at one end of each set of second springs (17) inside the corresponding deformation groove.

7. A detachable drop-out surge arrester according to claim 6, characterized in that: The fixing block (6) has two sets of mounting slots (19) on both sides corresponding to the positioning rods (18), and each set of positioning rods (18) is movably installed inside the corresponding mounting slot (19).

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