High-voltage disconnector with anti-falling function

Abstract

The utility model relates to high -voltage isolator technical field, and disclose a high -voltage isolator with anti -drop function, including the casing, the top of casing is provided with the limit locking assembly, the top of casing is provided with the anti -drop subassembly, the anti -drop subassembly includes first anti -drop wedge, connecting cylinder, spring piece, first connecting post spare, second connecting post spare and second anti -drop wedge. This high -voltage isolator with anti -drop function is provided with anti -drop subassembly, can when installing the finger is inserted to the inside of elastic band, then holds the connecting ring spare and pulls out the plug pole, makes first anti -drop wedge and second anti -drop wedge no longer be restricted, no longer compresses the spring piece in the inside, and the spring piece restores and drives first anti -drop wedge and second anti -drop wedge to slip on the top of wear -resisting copper base alloy, utilizes the self -locking characteristic of mechanical wedge surface, and the contact is locked when closing automatically, and mechanical lock is strong in stability.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage disconnect switch technology, specifically a high-voltage disconnect switch with anti-disconnection function. Background Technology

[0002] High-voltage disconnect switches, as key equipment in power systems used to isolate power sources and ensure maintenance safety, are widely used in substations, transmission lines, and distribution networks. Their operational reliability directly affects the stability and safety of the power system. In scenarios such as grid switching operations and equipment maintenance, disconnect switches need to open and close their contacts to disconnect and connect circuits. Reliable contact of the contacts is the core to ensuring normal current transmission.

[0003] The prior art discloses a high-voltage disconnecting switch with anti-disconnection function, with publication number CN116994906A. This high-voltage disconnecting switch includes a mounting base, a connecting base fixed to the top of the mounting base, a movable plate slidably mounted on the inner wall of the connecting base, a mounting plate abutting the top of the movable plate, and a high-voltage disconnecting switch fixed to the top of the mounting plate. A threaded rod passes through the mounting plate. When the high-voltage disconnecting switch is mounted onto the movable plate via the threaded rod, the knob will compress the transmission block.

[0004] The aforementioned high-voltage disconnecting switch with anti-disengagement function, through the cooperation of a pressing rod, tilting block, connecting rod, limiting post, limiting groove, limiting hole, and limiting mechanism, can fix the limiting post in the limiting groove, thereby limiting the up and down position of the knob and the threaded rod, preventing the threaded rod from loosening and affecting the installation of the high-voltage disconnecting switch. However, the aforementioned high-voltage disconnecting switch cannot utilize the self-locking characteristics of the mechanical wedge surface, cannot automatically lock the contacts when closing, and lacks mechanical locking, resulting in insufficient stability and poor performance in use. Improvements are needed in this regard. Utility Model Content

[0005] The purpose of this invention is to provide a high-voltage disconnecting switch with anti-disconnection function to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-voltage disconnecting switch with anti-disengagement function, comprising a housing, a limit locking component provided on the top of the housing, and an anti-disengagement component provided on the top of the housing.

[0007] The anti-detachment component includes a first anti-detachment wedge, a connecting cylinder, a spring, a first connecting post, a second connecting post, and a second anti-detachment wedge. The connecting cylinder is fixedly connected to the top of the housing, the spring is connected to the inside of the connecting cylinder, the first connecting post is fixedly connected to the back of the spring, the first anti-detachment wedge is fixedly connected to the front of the second connecting post, the first connecting post is fixedly connected to the back of the spring, and the second anti-detachment wedge is fixedly connected to the back of the first connecting post.

[0008] Preferably, the limiting and locking assembly includes a limiting strip, a wear-resistant copper-based alloy, a socket, a limiting ring, a rod, a connecting ring, and an elastic band. The limiting strip is fixedly connected to the top of the housing, the wear-resistant copper-based alloy is fixedly connected to the top of the housing, the socket is opened inside the limiting strip, the limiting ring is fixedly connected to the side of the limiting strip, the connecting ring is fixedly connected to the side of the rod, and the connecting ring is fixedly connected to the surface of the elastic band.

[0009] Preferably, the diameter of the first connecting post is adapted to the inner diameter of the connecting cylinder, and the diameter of the second connecting post is adapted to the inner diameter of the connecting cylinder.

[0010] Preferably, the second connecting column is slidably connected to the inside of the connecting cylinder, and the first anti-detachment wedge block is slidably connected to one of the adjacent ends of the limiting strip.

[0011] Preferably, the length of the first anti-detachment wedge is adapted to the spacing between the adjacent limiting strips, and the first anti-detachment wedge is slidably connected to the top of the wear-resistant copper-based alloy.

[0012] Preferably, a placement groove is provided on the top front of the housing, and the thickness of the wear-resistant copper-based alloy is adapted to the thickness of the placement groove. The placement groove is used to place the wear-resistant copper-based alloy, and the wear-resistant copper-based alloy is embedded to reduce friction.

[0013] Preferably, the insertion rod is inserted into the inside of the limiting ring, the inner diameter of the limiting ring is adapted to the diameter of the insertion hole, and the insertion rod is inserted into the inside of the limiting strip to lock the first anti-disengagement wedge block and the second anti-disengagement wedge block behind it, which is used when the circuit is opened.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This high-voltage disconnecting switch with anti-disengagement function is equipped with an anti-disengagement component. During installation, you can insert your finger into the inside of the elastic band, then grasp the connecting ring and pull out the plug rod. This removes the restriction on the first and second anti-disengagement wedges, and stops compressing the internal spring. The spring returns and causes the first and second anti-disengagement wedges to slide on the top of the wear-resistant copper-based alloy. Utilizing the self-locking characteristics of the mechanical wedge surface, the contacts are automatically locked when the switch is closed, resulting in strong mechanical locking stability.

[0016] 2. This high-voltage disconnecting switch with anti-disengagement function is equipped with a limit locking component. The plug rod is inserted into the inside of the limit bar to lock the first anti-disengagement wedge block and the second anti-disengagement wedge block behind it. The limit locking component can fix the first and second anti-disengagement wedge blocks when locking is not required, and can be used when opening the circuit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the anti-detachment component of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Housing; 2. Limiting and locking assembly; 201. Limiting strip; 202. Wear-resistant copper-based alloy; 203. Insertion hole; 204. Limiting ring; 205. Insertion rod; 206. Connecting ring; 207. Elastic band; 3. Anti-detachment assembly; 301. First anti-detachment wedge block; 302. Connecting cylinder; 303. Spring; 304. First connecting post; 305. Second connecting post; 306. Second anti-detachment wedge block. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A high-voltage disconnecting switch with anti-disengagement function includes a housing 1, a limit locking component 2 is provided on the top of the housing 1, and an anti-disengagement component 3 is provided on the top of the housing 1.

[0025] The anti-detachment component 3 includes a first anti-detachment wedge 301, a connecting cylinder 302, a spring member 303, a first connecting post 304, a second connecting post 305, and a second anti-detachment wedge 306. The connecting cylinder 302 is fixedly connected to the top of the housing 1, the spring member 303 is connected to the inside of the connecting cylinder 302, the first connecting post 304 is fixedly connected to the back of the spring member 303, the first anti-detachment wedge 301 is fixedly connected to the front of the second connecting post 305, and the first connecting post 304 is fixedly connected to the back of the spring member 303. Block 306 is fixedly connected to the back of the first connecting post 304. The diameter of the first connecting post 304 is adapted to the inner diameter of the connecting cylinder 302. The diameter of the second connecting post 305 is adapted to the inner diameter of the connecting cylinder 302. The second connecting post 305 is slidably connected to the inside of the connecting cylinder 302. The first anti-detachment wedge block 301 is slidably connected to one end of the limiting strip 201 that is close to each other. The length of the first anti-detachment wedge block 301 is adapted to the spacing between adjacent limiting strips 201. The first anti-detachment wedge block 301 is slidably connected to the top of the wear-resistant copper-based alloy 202.

[0026] The limiting locking assembly 2 includes a limiting strip 201, a wear-resistant copper-based alloy 202, a socket 203, a limiting ring 204, a rod 205, a connecting ring 206, and an elastic band 207. The limiting strip 201 is fixedly connected to the top of the housing 1, the wear-resistant copper-based alloy 202 is fixedly connected to the top of the housing 1, the socket 203 is opened inside the limiting strip 201, the limiting ring 204 is fixedly connected to the side of the limiting strip 201, and the connecting ring 206 is fixedly connected to the side of the rod 205. On the surface of the elastic band 207, the insertion rod 205 is inserted into the inside of the limiting ring 204. The inner diameter of the limiting ring 204 is adapted to the diameter of the insertion hole 203. The insertion rod 205 is inserted into the inside of the limiting strip 201 to lock the first anti-disengagement wedge block 301 and the rear second anti-disengagement wedge block 306. It is used when the circuit is opened. A placement groove is provided on the top front of the housing 1. The thickness of the wear-resistant copper-based alloy 202 is adapted to the thickness of the placement groove. The placement groove is used to place the wear-resistant copper-based alloy 202 and embed the wear-resistant copper-based alloy to reduce friction.

[0027] When placing the housing 1, install it on the movable plate. During installation, insert the rod 205 into the inside of the limiting strip 201 to lock the first anti-detachment wedge block 301 and the second anti-detachment wedge block 306 behind it. During installation, you can insert your finger into the elastic band 207, then grasp the connecting ring 206 to pull out the rod 205, so that the first anti-detachment wedge block 301 and the second anti-detachment wedge block 306 are no longer restricted, and the internal spring 303 is no longer compressed. The spring 303 returns and drives the first anti-detachment wedge block 301 and the second anti-detachment wedge block 306 to return to their original positions. The second anti-disengagement wedge 306 slides on top of the wear-resistant copper-based alloy 202. Utilizing the self-locking property of the mechanical wedge surface, it automatically locks the contact when the circuit is closed. The first connecting column 304 and the second connecting column 305 inside slide within the connecting cylinder 302 to limit the movement and ensure that the first anti-disengagement wedge 301 and the second anti-disengagement wedge 306 do not deviate during sliding. Furthermore, the limit locking assembly 2 can fix the first anti-disengagement wedge 301 and the second anti-disengagement wedge 306 when locking is not required, for use when the circuit is opened.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-voltage disconnecting switch with anti-disconnection function, comprising a housing (1), characterized in that: The top of the housing (1) is provided with a limit locking component (2), and the top of the housing (1) is provided with an anti-detachment component (3). The anti-detachment component (3) includes a first anti-detachment wedge (301), a connecting cylinder (302), a spring (303), a first connecting post (304), a second connecting post (305), and a second anti-detachment wedge (306). The connecting cylinder (302) is fixedly connected to the top of the housing (1). The spring (303) is connected to the inside of the connecting cylinder (302). The first connecting post (304) is fixedly connected to the back of the spring (303). The first anti-detachment wedge (301) is fixedly connected to the front of the second connecting post (305). The second anti-detachment wedge (306) is fixedly connected to the back of the first connecting post (304).

2. The high-voltage disconnector with anti-disengagement function according to claim 1, characterized in that: The limiting locking assembly (2) includes a limiting strip (201), a wear-resistant copper-based alloy (202), a socket (203), a limiting ring (204), a rod (205), a connecting ring (206), and an elastic band (207). The limiting strip (201) is fixedly connected to the top of the housing (1), the wear-resistant copper-based alloy (202) is fixedly connected to the top of the housing (1), the socket (203) is opened inside the limiting strip (201), the limiting ring (204) is fixedly connected to the side of the limiting strip (201), the connecting ring (206) is fixedly connected to the side of the rod (205), and the connecting ring (206) is fixedly connected to the surface of the elastic band (207).

3. A high-voltage disconnecting switch with anti-disconnection function according to claim 1, characterized in that: The diameter of the first connecting post (304) is adapted to the inner diameter of the connecting cylinder (302), and the diameter of the second connecting post (305) is adapted to the inner diameter of the connecting cylinder (302).

4. A high-voltage disconnecting switch with anti-disconnection function according to claim 2, characterized in that: The second connecting column (305) is slidably connected to the inside of the connecting cylinder (302), and the first anti-detachment wedge block (301) is slidably connected to the adjacent ends of the limiting strip (201).

5. A high-voltage disconnecting switch with anti-disconnection function according to claim 2, characterized in that: The length of the first anti-detachment wedge (301) is adapted to the spacing of the adjacent limiting strip (201), and the first anti-detachment wedge (301) is slidably connected to the top of the wear-resistant copper-based alloy (202).

6. A high-voltage disconnecting switch with anti-disconnection function according to claim 2, characterized in that: The top front of the housing (1) is provided with a placement groove, and the thickness of the wear-resistant copper-based alloy (202) is adapted to the thickness of the placement groove.

7. The high-voltage disconnector with anti-disengagement function according to claim 2, characterized in that: The insertion rod (205) is inserted into the inside of the limiting ring (204), and the inner diameter of the limiting ring (204) is adapted to the diameter of the insertion hole (203).

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