A low-voltage lightning arrester upper and lower electrode assembling tool

Abstract

The utility model discloses a low -voltage lightning arrester upper and lower electrode assembly frock relates to lightning arrester assembly technical field, the utility model discloses a workbench is established in the center position with fixed groove, the outside annular equidistance of fixed groove is provided with four sets of positioning assembly, and the outer surface of workbench is provided with twist lock subassembly. The utility model discloses through the setting of positioning assembly, the fixed groove for temporarily limiting and stabilizing lightning arrester that is established in the workbench, through the elastic lower adhesion on the outer wall of lightning arrester of the guiding of positioning block and the first spring, further improved the stability of lightning arrester and the subsequent assembly work carry out conveniently, and through the cooperation of positioning block and second sliding slot, the lightning arrester is conveniently fixed and taken quickly, can be widely used in the assembly of various lightning arrester, through setting twist lock subassembly, convenient with taking while also avoiding the loss of electric screwdriver, also greatly reduced the assembly operation difficulty, improved product assembly efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of surge arrester assembly technology, and in particular relates to a tooling for assembling the upper and lower electrodes of a low-voltage surge arrester. Background Technology

[0002] One of the most commonly used devices in power grids is the surge arrester, with the 10kV heavy-load surge arrester being the most representative. A 10kV heavy-load surge arrester mainly consists of silicone rubber and a core assembly. The core assembly includes resistance elements, aluminum pads, an epoxy cloth sleeve, electrodes, and springs. During the assembly of the core assembly, the presence of the springs results in a relatively large force required to rotate the electrodes into the epoxy cloth sleeve. Therefore, it is necessary to fix the core assembly in place to prevent slippage of the outer edge. In the past, this was done manually by hand. However, it still has the following drawbacks in practical use: The existing heavy-load surge arrester core requires one hand to support the outer wall of the epoxy cloth sleeve during assembly. Furthermore, because the epoxy cloth sleeve contains springs, the spring's elastic force makes it difficult to install the electrodes. The existing heavy-load surge arrester core requires two people to work together and apply 430N of force during assembly. It is also difficult to screw the electrodes into the epoxy cloth sleeve, resulting in a long assembly time and potential surface damage to the resistor elements. Utility Model Content

[0003] The purpose of this utility model is to provide a low-voltage surge arrester upper and lower electrode assembly fixture. By setting up a positioning component, the stability of the surge arrester is improved, which facilitates subsequent assembly work. Furthermore, the cooperation of the positioning block and the second slide groove makes it easy to quickly fix and pick up the surge arrester. It can be widely used in the assembly and adjustment of various surge arresters. By setting up a locking component, it is easy to use and pick up at any time, and also avoids the loss of electric screwdrivers. At the same time, it greatly reduces the difficulty of assembly operations, improves product assembly efficiency, and solves existing problems.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a fixture for assembling the upper and lower electrodes of a low-voltage surge arrester, comprising an operating table. A fixing groove is provided at the center of the operating table. Four sets of positioning components are arranged circumferentially and equidistantly on the outer side of the fixing groove. A locking component is provided on the outer surface of the operating table. Each positioning component includes a first sliding groove, a first slider, a first spring, and a positioning block. Four sets of first sliding grooves are symmetrically arranged inside the operating table with the fixing groove as the center. A first slider is slidably connected inside each of the four sets of first sliding grooves. A first spring is provided inside the first sliding groove. The two ends of the first spring abut against the inner wall of the first slider and the first sliding groove, respectively. A positioning block is connected to the inner side of the first slider.

[0005] The present invention is further configured such that the screw-locking assembly includes a third sliding groove, a third sliding block, an elastic rope, and an electric screwdriver. The third sliding groove is circumferentially formed on the outer surface of the operating table. The third sliding block is slidably connected inside the third sliding groove. The elastic rope is connected to the outer side of the third sliding block. The end of the elastic rope is fixedly connected to the electric screwdriver.

[0006] The present invention is further configured such that the positioning component includes a second sliding groove, a second slider, a connecting block and a communicating groove, and the interior of each of the four sets of first sliders is provided with a second sliding groove, the interior of the second sliding groove is slidably connected to a second slider, the exterior of the second slider is rotatably connected to a connecting block, the outer surface of the connecting block is fixedly connected to the positioning block, the side of the first slider facing the fixed groove is provided with a communicating groove, and the top of the inner side of the first slider is rounded.

[0007] The present invention is further configured such that the cross-section of the positioning block is semi-circular, the upper surface of the positioning block is smooth, and the lower surface of the positioning block is provided with anti-slip texture.

[0008] The present invention is further configured such that the third slide groove is T-shaped, the diameter of the third slider is adapted to the third slide groove, and four sets of ball bearings are rotatably installed at the four corners of the third slider.

[0009] The present invention is further configured such that the diameter of the second slider is adapted to the inner diameter of the second slide groove, and a second spring is provided inside the second slide groove, with one end of the second spring abutting against the second slider and the other end abutting against the inner wall of the second slide groove.

[0010] The present invention is further configured such that the maximum extension length of the elastic rope in the locking assembly is greater than the distance between the operating tables, and the retracted length of the elastic rope in the static state is half the distance between the operating tables.

[0011] This utility model has the following beneficial effects: 1. This utility model, through the setting of positioning components, uses a fixing groove in the operating table to temporarily limit and stabilize the surge arrester. During the placement of the surge arrester, the positioning block guides and the elasticity of the first spring causes it to adhere to the outer wall of the surge arrester, further improving the stability of the surge arrester and facilitating subsequent assembly work. Furthermore, through the cooperation of the positioning block and the second sliding groove, the surge arrester can be quickly fixed and removed. It can be widely used in the assembly and adjustment of various surge arresters.

[0012] 2. This utility model, by setting a screw-locking component, can slide to any position through the third slider and the third slide groove, which is convenient to use and take out at any time, and also avoids the loss of electric screwdriver. It also greatly reduces the difficulty of assembly operations and improves product assembly efficiency. At the same time, when using an electric screwdriver to tighten the electrode, the force is evenly distributed and will not cause damage due to uneven force. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a front view schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning component of this utility model; Figure 3 This is a schematic diagram of the screw-lock assembly of this utility model; Figure 4 This utility model Figure 2 A magnified view of part A in the diagram.

[0015] In the diagram: 1. Operating table; 2. Fixing groove; 3. Positioning assembly; 301. First slide groove; 302. First slider; 303. First spring; 304. Positioning block; 305. Second slide groove; 306. Second slider; 307. Connecting block; 308. Connecting groove; 309. Second spring; 4. Tightening assembly; 401. Third slide groove; 402. Third slider; 403. Elastic rope; 404. Electric screwdriver; 405. Ball bearing. Detailed Implementation

[0016] 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.

[0017] like Figure 1-4As shown, this utility model provides a technical solution: a low-voltage surge arrester upper and lower electrode assembly fixture, including an operating table 1, a fixing groove 2 is provided at the center of the operating table 1, four sets of positioning components 3 are arranged circumferentially and equidistantly on the outer side of the fixing groove 2, and a locking component 4 is provided on the outer surface of the operating table 1. In use, the surge arrester is placed into the fixing groove 2 at the operating table 1, the surge arrester moves downward and pushes the positioning component 3, so that the first spring 303 in the positioning component 3 is compressed, that is, limited in the fixing groove 2, and then the components on the surge arrester are placed on the operating table 1 to assemble the surge arrester.

[0018] like Figure 1 and Figure 2 As shown, the positioning component 3 includes a first slide groove 301, a first slider 302, a first spring 303, and a positioning block 304. Four sets of first slide grooves 301 are symmetrically arranged inside the operating table 1 with the fixed groove 2 as the center. Each of the four sets of first slide grooves 301 has a first slider 302 slidably connected inside. A first spring 303 is installed inside the first slide groove 301, with both ends of the first spring 303 abutting against the inner walls of the first slider 302 and the first slide groove 301, respectively. A positioning block 304 is connected to the inner side of the first slider 302. When the surge arrester is placed in the fixed groove 2, the four sets of first sliders 302 are pushed outward along the first slide groove 301, causing the first spring 303 to be compressed and deformed until the edge of the surge arrester is stuck under the positioning block 304. Under the elastic action of the first spring 303, the positioning block 304 adheres to the surface of the surge arrester, thus limiting the position of the surge arrester.

[0019] like Figure 2 and Figure 3 As shown, the screw-locking assembly 4 includes a third slide groove 401, a third slider 402, an elastic rope 403, and an electric screwdriver 404. The third slide groove 401 is circumferentially formed on the outer surface of the operating table 1. The third slider 402 is slidably connected inside the third slide groove 401. The elastic rope 403 is connected to the outer side of the third slider 402. The electric screwdriver 404 is fixedly connected to the end of the elastic rope 403. When assembling the accessories, first move the third slider 402 along the third slide groove 401 to a suitable position, hold the electric screwdriver 404 to stretch the elastic rope 403, and assemble the accessories with the surge arrester.

[0020] like Figure 2 and Figure 4As shown, the positioning assembly 3 also includes a second slide groove 305, a second slider 306, a connecting block 307, and a connecting groove 308. Each of the four sets of first sliders 302 has a second slide groove 305 inside. A second slider 306 is slidably connected inside the second slide groove 305. A connecting block 307 is rotatably connected to the outside of the second slider 306. The outer surface of the connecting block 307 is fixedly connected to the positioning block 304. A connecting groove 308 is provided on the side of the first slider 302 facing the fixed groove 2. The top of the inner side of the first slider 302 is rounded. After assembly, when removing the surge arrester, simply hold the surge arrester and move it vertically upwards, causing the positioning block 304 to move along the second slide groove 305 via the second slider 306. When the second slider 306 moves to the top of the second slide groove 305, under the rotatable connection of the second slider 306 and the connecting block 307, and in conjunction with the rounded top design, the positioning block 304 flips outwards along the connecting groove 308 with the help of the connecting block 307, thus pulling out the surge arrester.

[0021] like Figure 2 and Figure 4 As shown, the positioning block 304 has a semi-circular cross-section and a smooth upper surface. This facilitates the smooth surface of the positioning block 304 as it moves towards the fixing groove 2, allowing it to be guided and locked at the bottom of the positioning block 304. The lower surface of the positioning block 304 has anti-slip textures. After being locked at the bottom of the positioning block 304, the anti-slip textures reduce displacement and improve the stability of the device.

[0022] like Figure 2 and Figure 3 As shown, the third slide groove 401 is T-shaped, and the diameter of the third slider 402 is adapted to the third slide groove 401, which facilitates the stable movement of the third slider 402 within the third slide groove 401. Four sets of ball bearings 405 are rotatably installed at the four corners of the third slider 402 to reduce the friction between the third slider 402 and the third slide groove 401, making the movement of the third slider 402 more convenient and avoiding jamming.

[0023] like Figure 4 As shown, the diameter of the second slider 306 is adapted to the inner diameter of the second slide groove 305. A second spring 309 is provided inside the second slide groove 305. The diameter of the second spring 309 is adapted to the second slider 306. One end of the second spring 309 abuts against the second slider 306, and the other end abuts against the inner wall of the second slide groove 305. This facilitates the second slider 306 to squeeze the second spring 309 when it moves upward. After the surge arrester is removed, the second slider 306 is pushed back to its original position by the rebound action of the second spring 309, thus improving the convenience of the device.

[0024] like Figure 2 and Figure 3As shown, the maximum extension length of the elastic rope 403 in the screw-locking assembly 4 is greater than the distance between the operating tables 1, and the retracted length of the elastic rope 403 when stationary is half the distance between the operating tables 1, ensuring that the elastic rope 403 can automatically retract when the electric screwdriver 404 is not used, thus avoiding obstruction of secondary operations.

[0025] Working principle: When using, such as Figure 1 and Figure 2 As shown, the surge arrester is first placed in the fixing groove 2. During placement, the four sets of first sliders 302 are pushed outward along the first sliding groove 301, causing the first spring 303 to be compressed and deformed until the edge of the surge arrester is stuck under the positioning block 304. Under the elastic action of the first spring 303, the positioning block 304 is made to fit against the surface of the surge arrester, thus limiting the surge arrester. Figure 2 and Figure 3 As shown, when assembling the accessories, first move the third slider 402 along the third slide groove 401 to the appropriate position, hold the electric screwdriver 404 and stretch the elastic rope 403 to assemble the accessories with the surge arrester. After assembly, when removing the surge arrester, simply hold the surge arrester and move it vertically upwards, causing the positioning block 304 to move along the second slide groove 305 via the second slider 306. At the same time, the second spring 309 is squeezed, causing it to deform. When the second slider 306 moves to the top of the second slide groove 305, under the rotational connection of the second slider 306 and the connecting block 307 and in conjunction with the rounded corner design at the top, the positioning block 304 is flipped outwards along the connecting groove 308 with the help of the connecting block 307, so that the surge arrester can be pulled out. After removing the surge arrester, under the rebound action of the second spring 309, the second slider 306 is pushed back to its original position, making it easy to fix again.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0027] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art of surge arrester assembly to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fixture for assembling upper and lower electrodes of a low-voltage surge arrester, comprising an operating table (1), characterized in that: The operating table (1) has a fixed groove (2) at its center. Four sets of positioning components (3) are arranged equidistantly around the outside of the fixed groove (2). The operating table (1) has a locking component (4) on its outer surface. The positioning component (3) includes a first slide groove (301), a first slider (302), a first spring (303), and a positioning block (304). The operating table (1) has four sets of first slide grooves (301) symmetrically arranged around the fixed groove (2) inside. The first slider (302) is slidably connected inside each of the four sets of first slide grooves (301). The first spring (303) is arranged inside the first slide groove (301). The two ends of the first spring (303) abut against the inner wall of the first slider (302) and the first slide groove (301), respectively. The positioning block (304) is connected to the inner side of the first slider (302).

2. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 1, characterized in that, The screw-locking assembly (4) includes a third slide groove (401), a third slider (402), an elastic rope (403), and an electric screwdriver (404). The outer surface of the operating table (1) is provided with a third slide groove (401) in a ring shape. The third slider (402) is slidably connected inside the third slide groove (401). The elastic rope (403) is connected to the outer side of the third slider (402). The end of the elastic rope (403) is fixedly connected to the electric screwdriver (404).

3. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 1, characterized in that, The positioning component (3) further includes a second slide groove (305), a second slider (306), a connecting block (307), and a connecting groove (308). The interior of each of the four sets of first sliders (302) is provided with a second slide groove (305). The interior of the second slide groove (305) is slidably connected to the second slider (306). The outer side of the second slider (306) is rotatably connected to the connecting block (307). The outer surface of the connecting block (307) is fixedly connected to the positioning block (304). The first slider (302) is provided with a connecting groove (308) on the side facing the fixed groove (2). The top of the inner side of the first slider (302) is rounded.

4. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 1, characterized in that, The positioning block (304) has a semi-circular cross-section, the upper surface of the positioning block (304) is a smooth surface, and the lower surface of the positioning block (304) is provided with anti-slip texture.

5. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 2, characterized in that, The third slide groove (401) is T-shaped, and the diameter of the third slider (402) is adapted to the third slide groove (401). Four sets of balls (405) are rotatably installed at the four corners of the third slider (402).

6. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 3, characterized in that, The diameter of the second slider (306) is adapted to the inner diameter of the second groove (305). A second spring (309) is provided inside the second groove (305). One end of the second spring (309) abuts against the second slider (306), and the other end abuts against the inner wall of the second groove (305).

7. The low-voltage surge arrester upper and lower electrode assembly fixture according to claim 2, characterized in that, The maximum extension length of the elastic rope (403) in the locking assembly (4) is greater than the distance between the operating tables (1), and the retracted length of the elastic rope (403) when stationary is half the distance between the operating tables (1).

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