Modular multi-chamber gap lightning protection safety device easy to maintain

Abstract

The utility model discloses a modular multi-chamber gap lightning protection safety device easy to maintain, which relates to the technical field of lightning arresters and comprises an end cap, a spacing cushion block is mounted at the bottom of the end cap, and a rheostat is mounted on one side, far away from the end cap, of the spacing cushion block; the number of the end caps is two, rheostats distributed at equal intervals are installed between the two spacing cushion blocks, annular isolation grooves distributed at equal intervals are formed in the outer sides of the end caps, an isolation strip is connected between every two isolation grooves in a clamped mode, and a positioning plate of an arc-shaped structure is fixedly connected to the inner side of each isolation strip. According to the modular multi-cavity gap lightning protection safety device easy to maintain, through combination of modular assemblies such as the isolating bars, the positioning plates and the shell, all parts of the lightning arrester can be independently disassembled and assembled, when damaged parts are maintained or replaced, the lightning arrester can be quickly disassembled only by disassembling the fixing rings, the overhauling efficiency is greatly improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lightning arrester technology, specifically to an easy-to-maintain modular multi-chamber gap lightning protection safety device. Background Technology

[0002] Multi-chamber gap surge arresters, also known as multi-chamber gap surge protectors, are devices used for lightning protection in power systems. They are mainly used to limit overvoltage and protect electrical equipment from damage caused by lightning strikes. Through the design of multiple chambers and gaps, they can effectively disperse and absorb lightning energy, thereby reducing the impact of overvoltage on the system.

[0003] To achieve the above functions, a prior art Chinese patent (publication number: CN111210955B) discloses a multi-chamber gap arrester. In the multi-chamber gap arrester of this invention, the air gap formed between the first discharge ball and the second discharge ball is the main air gap. The low-voltage end of the fixed gap insulator and the multi-chamber gap arrester body is fixed on the reference surface of the fixing member. When the reference surface is a plane, it can ensure that the low-voltage end of the fixed gap insulator and the multi-chamber gap arrester body is on the same plane. The fixed gap insulator and the multi-chamber gap arrester body are connected into one piece by a conductive support member, ensuring that the main air gap cannot be shifted under the action of external force, thus ensuring the stability of the multi-chamber gap arrester during lightning impulse operation.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: existing surge arresters usually have an integrated design for both the outer casing and internal components, which means that when maintenance is required, the casing and components need to be replaced in a unified manner, making replacement cumbersome and increasing maintenance costs. Furthermore, their large size makes them difficult to maintain in the future. Utility Model Content

[0005] The purpose of this utility model is to provide an easy-to-maintain modular multi-chamber gap lightning protection safety device to solve the problem that existing lightning arresters in the background art usually have an integrated design of the outer shell and inner components, which makes them inconvenient to maintain.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an easy-to-maintain modular multi-chamber gap lightning protection safety device, including an end cap, a spacer block installed at the bottom of the end cap, and a rheostat installed on the side of the spacer block away from the end cap;

[0007] Two end caps are provided, and equidistant rheostats are installed between the two spacer blocks. An annular equidistant isolation groove is provided on the outer side of the end cap, and an isolation strip is engaged between every two isolation grooves. An arc-shaped positioning plate is fixedly connected to the inner side of the isolation strip.

[0008] Preferably, the isolation strip and the positioning plate are distributed in a ring at equal intervals between the two end caps, and the positioning plate and the outside of the rheostat are in close contact with each other, and the positioning plate forms a cylindrical structure on the outside of the rheostat.

[0009] Preferably, the outer side of the end cap is provided with equally spaced fixing grooves, and fiber rings are installed inside the two fixing grooves. The fiber rings are located outside the positioning plate and between the two isolation strips.

[0010] Preferably, the outer side of the end cap is provided with a connecting thread, and the top of the end cap is threadedly connected to a fixing ring through the connecting thread, and the inner side of the fixing ring and the outer side of the isolation strip are in close contact with each other.

[0011] Preferably, the two end caps have three equally spaced threaded holes on the side away from the spacer block, and the two end caps are respectively fitted with a connector and a base through the threaded holes.

[0012] Preferably, a mounting groove is formed on the outer side of the end cap, between the two isolation strips, and on the inner side of the fixing ring, and a housing is installed between the two mounting grooves.

[0013] Preferably, the outer side of the outer shell is provided with a wave-shaped structure, and connecting blocks are fixedly connected to the top and bottom of the outer shell. The connecting blocks are engaged and connected inside the mounting groove, and the outer shell is formed to fit together between the two end caps to form an integral whole.

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

[0015] This easy-to-maintain modular multi-chamber gap lightning protection safety device, through the combination of modular components such as isolation strips, positioning plates, and shells, allows each part of the surge arrester to be disassembled and installed independently. When maintaining or replacing damaged parts, the surge arrester can be quickly disassembled simply by removing the fixing ring, which greatly improves maintenance efficiency and reduces maintenance costs.

[0016] The junction rheostat is wrapped by a positioning plate to form a cylindrical structure and is fixed with a fiber ring, which effectively prevents misalignment caused by vibration or impact and improves the service life of the surge arrester. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the end cap structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the fiber ring structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the fixing ring structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the mounting groove structure of this utility model.

[0023] In the diagram: 1. End cap; 2. Spacer block; 3. Rheostat; 4. Isolation groove; 5. Isolation strip; 6. Positioning plate; 7. Fixing groove; 8. Fiber ring; 9. Connecting thread; 10. Fixing ring; 11. Connector; 12. Base; 13. Mounting groove; 14. Housing; 15. Connecting block. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1 - Figure 6 This utility model provides the following technical solution: an easy-to-maintain modular multi-chamber gap lightning protection safety device, including an end cap 1, a spacer block 2 installed at the bottom of the end cap 1, and a rheostat 3 installed on the side of the spacer block 2 away from the end cap 1; there are two end caps 1, and rheostats 3 are installed at equal intervals between the two spacer blocks 2; annularly distributed isolation grooves 4 are provided on the outer side of the end cap 1, and an isolation strip 5 is engaged between every two isolation grooves 4, and an arc-shaped positioning plate 6 is fixedly connected to the inner side of the isolation strip 5; the isolation strip 5 and the positioning plate 6 are distributed at equal intervals in an annular shape between the two end caps 1, and the positioning plate 6 and the outer side of the rheostat 3 are in close contact with each other, and the positioning plate 6 forms a cylindrical structure on the outer side of the rheostat 3; an equally distributed fixing groove 7 is provided on the outer side of the end cap 1, and fiber rings 8 are installed inside the two fixing grooves 7, and the fiber rings 8 are located outside the positioning plate 6 and between the two isolation strips 5.

[0026] During the installation of the surge arrester, the spacer block 2 is first installed inside the end cap 1, and multiple rheostats 3 are installed between the rheostats 3 so that the rheostats 3 fit together to form a whole. After the spacer block 2 and the rheostats 3 are installed, the isolation strip 5 is installed between the two end caps 1 so that both the upper and lower ends of the isolation strip 5 are installed inside the isolation groove 4.

[0027] After the isolation strip 5 is installed, the positioning plate 6 installed on the inner side of the isolation strip 5 will fit together with the rheostat 3. At this time, the cylindrical structure formed by the positioning plate 6 on the outside of the rheostat 3 will fix it to prevent the rheostat 3 from being misaligned due to vibration during use. After the isolation strip 5 and the positioning plate 6 are installed, the fiber ring 8 is installed inside the fixing groove 7 on the outside of the two end caps 1, so that the fixing groove 7 is distributed in a ring at equal intervals on the outside of the rheostat 3.

[0028] Example 2: Based on Example 1, the following structure is also disclosed: The outer side of the end cap 1 is provided with a connecting thread 9, and the top of the end cap 1 is threadedly connected to a fixing ring 10 through the connecting thread 9, and the inner side of the fixing ring 10 and the outer side of the isolation strip 5 are in close contact with each other; the two end caps 1 are provided with three equally spaced threaded holes on the side away from the spacer block 2, and the two end caps 1 are respectively installed with a connector 11 and a base 12 through the threaded holes; the outer side of the end cap 1, the space between the two isolation strips 5 and the inner side of the fixing ring 10 form a mounting groove 13, and a housing 14 is installed between the two mounting grooves 13; the outer side of the housing 14 is provided with a wave-shaped structure, and the top and bottom of the housing 14 are fixedly connected with connecting blocks 15, the connecting blocks 15 are engaged in the mounting groove 13, and the housing 14 is in close contact between the two end caps 1 to form an integral whole.

[0029] After the two end caps 1, fiber rings 8, isolation strips 5, and positioning plates 6 are installed, a fixing ring 10 is installed on the outside of the bottom end cap 1, forming an installation groove 13 on the outside of the bottom end cap 1. The fixing ring 10 will fix the bottom of the isolation strip 5. Then, the connecting block 15 installed at the bottom of the housing 14 is engaged inside the installation groove 13 until each housing 14 is installed between the two end caps 1 to form an integral structure. Then, the fixing ring 10 at the top is installed on the outside of the end cap 1. The isolation strip 5 and the housing 14 are fixed by the two fixing rings 10, thus completing the installation of the surge arrester.

[0030] After the surge arrester is installed, connector 11 and base 12 are installed on the top and bottom of the surge arrester, respectively, so that the surge arrester is installed in the power system through connector 11 and base 12. After the connector 11 is installed, the connection between connector 11 and end cap 1 is located inside the fixing ring 10. Therefore, the fixing ring 10 located at the top can be removed without affecting the installation of connector 11. When the fixing ring 10 and end cap 1 are separated, the isolation strip 5, positioning plate 6, outer shell 14 and fiber ring 8 can be removed, which facilitates maintenance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An easy-to-maintain modular multi-chamber gap lightning protection safety device, comprising an end cap (1), wherein a spacer block (2) is installed at the bottom of the end cap (1), and a rheostat (3) is installed on the side of the spacer block (2) away from the end cap (1). Its features are: There are two end caps (1), and there are equidistant rheostats (3) installed between the two spacer blocks (2). There are annular equidistant isolation grooves (4) on the outside of the end caps (1), and an isolation strip (5) is engaged between each pair of isolation grooves (4). An arc-shaped positioning plate (6) is fixedly connected to the inside of the isolation strip (5).

2. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 1, characterized in that: The isolation strip (5) and the positioning plate (6) are distributed in a ring at equal intervals between the two end caps (1), and the positioning plate (6) and the outside of the rheostat (3) are in contact with each other, and the positioning plate (6) forms a cylindrical structure on the outside of the rheostat (3).

3. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 2, characterized in that: The end cap (1) has equidistantly distributed fixing grooves (7) on its outer side, and fiber rings (8) are installed inside the two fixing grooves (7). The fiber rings (8) are located outside the positioning plate (6) and between the two isolation strips (5).

4. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 1, characterized in that: The end cap (1) is provided with a connecting thread (9) on the outside, and a fixing ring (10) is threadedly connected to the top of the end cap (1) through the connecting thread (9), and the inner side of the fixing ring (10) and the outer side of the isolation strip (5) fit together.

5. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 4, characterized in that: The two end caps (1) have three equally spaced threaded holes on the side away from the spacer block (2), and the two end caps (1) are respectively equipped with connectors (11) and bases (12) through the threaded holes.

6. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 1, characterized in that: An installation groove (13) is formed on the outer side of the end cap (1), between the two isolation strips (5) and the inner side of the fixing ring (10), and a shell (14) is installed between the two installation grooves (13).

7. The easily maintainable modular multi-chamber gap lightning protection safety device according to claim 6, characterized in that: The outer shell (14) is provided with a wave-shaped structure on the outside, and the top and bottom of the shell (14) are fixedly connected with connecting blocks (15). The connecting blocks (15) are engaged and connected inside the mounting groove (13), and the shell (14) is formed to fit together between the two end caps (1) to form an integral whole.

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