Protection structure of lightning arrester

Abstract

The utility model discloses a protection structure of a lightning arrester, which belongs to the field of lightning arresters and comprises a lightning arrester body. The protection assembly is arranged on the outer side of the lightning arrester body in a sleeving manner and comprises a protection sleeve which is arranged on the outer side of the lightning arrester body in a sleeving manner; the through pipe is arranged on the outer side of the protective sleeve in a communicating manner; the limiting assembly is detachably arranged on the outer side of the lightning arrester body, and the outer side of the protective sleeve is arranged on the limiting assembly. According to the protection structure of the lightning arrester, through the arrangement of the protection assembly, under the action of the protection sleeve, the wiring terminal of the lightning arrester body can be protected, and under the action of the first sealing ring and the second sealing ring, the sealing effect of the protection sleeve can be further improved; therefore, normal operation of the lightning arrester is guaranteed, the service life is prolonged, and under the action of the limiting assembly, the protection assembly is reliably fixed for a long time and is prevented from falling off due to vibration and wind power.

Description

Technical Field

[0001] This utility model belongs to the field of surge arresters, and specifically relates to a protective structure for a surge arrester. Background Technology

[0002] A surge arrester is an important electrical protection device. Its main function is to prevent damage to the insulation of electrical equipment caused by lightning or switching overvoltage, and to extend the service life of electrical equipment.

[0003] Currently, surge arresters are important overvoltage protection devices in power systems. The connection between their terminals and high-voltage power lines is easily affected by the external environment, such as rainwater, dust, and corrosive gases, which can lead to oxidation, corrosion, or a decline in insulation performance at the connection, thereby affecting the normal operation and service life of the surge arrester. Therefore, this application proposes a protection structure for surge arresters to solve the above-mentioned technical problems. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the prior art, this utility model provides a protection structure for a surge arrester, which has the advantages of ensuring the normal operation of the surge arrester and improving its service life.

[0005] To achieve the above objectives, this utility model provides a protective structure for a surge arrester, including a surge arrester body;

[0006] A protective assembly that can be fitted onto the outside of the surge arrester body includes a protective sleeve fitted onto the outside of the surge arrester body and a through pipe that can communicate with the outside of the protective sleeve.

[0007] A limiting component is detachably disposed on the outside of the surge arrester body, and the outside of the protective sleeve is disposed on the limiting component.

[0008] Furthermore, the protective component includes a relief groove formed on the inner side of the protective sleeve;

[0009] The first sealing ring is located inside the relief groove;

[0010] At least two second sealing rings are evenly distributed on the inner side of the through pipe.

[0011] Furthermore, the cross-sections of the first sealing ring and the second sealing ring are both acute-angled triangles, and the larger end of the first sealing ring and the second sealing ring is located inside the relief groove.

[0012] Furthermore, the protective sleeve is a rubber protective sleeve;

[0013] The mounting hole is located on the outside of the protective sleeve, and the through pipe is located on the inside of the mounting hole.

[0014] Furthermore, the limiting component includes a butterfly sleeve, which is detachably disposed on the outside of the surge arrester body;

[0015] Two connecting blocks are symmetrically arranged on the outside of the butterfly-shaped sleeve;

[0016] Two limiting holes are respectively opened on the upper surface of the connecting block;

[0017] Two connectors are slidably disposed inside the two limiting holes.

[0018] Furthermore, the connector includes a connecting rod that is slidably disposed inside the limiting hole, and the upper end of the connecting rod is disposed outside the protective sleeve.

[0019] A number of limiting plates are evenly distributed on the outside of the connecting rod.

[0020] Furthermore, the limiting piece is an elastic limiting piece, and the lower end of the limiting piece is inclined and located on the outside of the connecting rod, with the upper surface of the limiting piece in contact with the lower surface of the connecting block.

[0021] Furthermore, the butterfly sleeve is a rubber butterfly sleeve, and the inner side of the butterfly sleeve is adapted to the outer side of the surge arrester body.

[0022] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0023] The protective structure of this surge arrester, through the setting of protective components, can protect the wiring terminals of the surge arrester body under the action of the protective sleeve. Furthermore, under the action of the first sealing ring and the second sealing ring, the sealing effect of the protective sleeve can be further improved, thereby ensuring the normal operation of the surge arrester and extending its service life. In addition, under the action of the limiting component, the protective components are ensured to be reliably fixed for a long time, preventing them from falling off due to vibration and wind, ensuring the continuous and stable operation of the surge arrester, and extending the service life of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure in a preferred embodiment of the present invention;

[0025] Figure 2 This is a three-dimensional cross-sectional view of the protective component in a preferred embodiment of the present invention.

[0026] Figure 3 This is a three-dimensional exploded view of the limiting component in a preferred embodiment of the present invention.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. surge arrester body; 2. protective assembly; 21. protective sleeve; 22. clearance groove; 23. first sealing ring; 24. through pipe; 25. second sealing ring; 3. limiting assembly; 31. butterfly sleeve; 32. connecting block; 33. limiting hole; 34. connecting piece; 341. connecting rod; 342. limiting piece. Detailed Implementation

[0028] 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.

[0029] Please see Figure 1-3 This utility model provides a protective structure for a surge arrester, including a surge arrester body 1;

[0030] A protective assembly 2 that can be fitted onto the outside of the surge arrester body 1 includes a protective sleeve 21 that can be fitted onto the outside of the surge arrester body 1; and a through pipe 24 that can be connected to the outside of the protective sleeve 21.

[0031] The limiting component 3 is detachably located on the outside of the surge arrester body 1, and the outer side of the protective sleeve 21 is located on the limiting component 3.

[0032] This embodiment provides several preferred embodiments of a surge arrester protection structure. The protection component 2 can protect the connection between the terminals of the surge arrester body 1 and the high-voltage wire, thereby preventing external factors from causing corrosion or dust accumulation at the connection between the terminals and the high-voltage wire, which would affect the performance and operational safety of the surge arrester. At the same time, under the action of the limiting component 3, the protection component 2 can be limited, thereby ensuring the protection stability of the surge arrester body 1 by the protection component 2.

[0033] Furthermore, such as Figure 2 As shown, the protective component 2 in the preferred embodiment of this utility model includes a relief groove 22, which is formed on the inner side of the protective sleeve 21; a first sealing ring 23, which is disposed on the inner side of the relief groove 22; and at least two second sealing rings 25, which are evenly distributed on the inner side of the through pipe 24.

[0034] Furthermore, the cross-sections of the first sealing ring 23 and the second sealing ring 25 are both acute-angled triangles, and the larger end of the first sealing ring 23 and the second sealing ring 25 is located inside the relief groove 22. This allows the first sealing ring 23 and the second sealing ring 25 to deform better, thereby enabling the first sealing ring 23 and the second sealing ring 25 to seal with the surge arrester body 1 and the high-voltage wire of different specifications and sizes, respectively.

[0035] More specifically, the protective sleeve 21 is a rubber protective sleeve; the mounting hole is opened on the outside of the protective sleeve 21, and the through pipe 24 is located on the inside of the mounting hole.

[0036] This embodiment provides several preferred embodiments of the protection component 2. The high-voltage wire is passed through the conduit 24 into the protective sleeve 21, and then connected to the terminal block of the surge arrester body 1. The protective sleeve 21 is then fitted over the outside of the surge arrester body 1, with the terminal block of the surge arrester body 1 located inside the protective sleeve 21. When the high-voltage wire enters the conduit 24, it compresses the second sealing ring 25, causing the inner side of the second sealing ring 25 to fit tightly against the outer side of the high-voltage wire. Furthermore, when the protective sleeve 21 is fitted over the outside of the surge arrester body 1, the outer side of the surge arrester body 1 compresses the inner side of the first sealing ring 23, causing the inner side of the first sealing ring 23 to fit tightly against the outer side of the surge arrester body 1. This seals the connection between the terminal block of the surge arrester body 1 and the high-voltage wire, preventing interference from external factors that could affect the performance and operational safety of the surge arrester.

[0037] Furthermore, such as Figure 3 As shown, the limiting component 3 in the preferred embodiment of this utility model includes a butterfly sleeve 31, which is detachably disposed on the outside of the surge arrester body 1; two connecting blocks 32, which are symmetrically disposed on the outside of the butterfly sleeve 31; two limiting holes 33, which are respectively opened on the upper surface of the connecting blocks 32; and two connecting pieces 34, which are respectively slidably disposed on the inside of the two limiting holes 33.

[0038] Furthermore, the connector 34 includes a connecting rod 341, which is slidably disposed inside the limiting hole 33, and the upper end of the connecting rod 341 is disposed outside the protective sleeve 21; a number of limiting pieces 342 are evenly distributed on the outside of the connecting rod 341.

[0039] Furthermore, the limiting piece 342 is an elastic limiting piece, and the lower end of the limiting piece 342 is inclined and located on the outside of the connecting rod 341, with the upper surface of the limiting piece 342 in contact with the lower surface of the connecting block 32.

[0040] Furthermore, the butterfly sleeve 31 is a rubber butterfly sleeve, and the inner side of the butterfly sleeve 31 is compatible with the outer side of the surge arrester body 1.

[0041] This embodiment provides several preferred embodiments of the limiting component 3. By fitting the butterfly sleeve 31 onto the outside of the surge arrester body 1, and considering the special shape of the outside of the surge arrester body 1, the butterfly sleeve 31 can be stably positioned on the outside of the surge arrester body 1. After the protective sleeve 21 is fitted onto the outside of the surge arrester body 1, the upper end of the limiting piece 342 is pressed, so that the outside of the limiting piece 342 contacts the outside of the connecting rod 341. Then, the connecting rod 341 is inserted into the limiting hole 33. When the limiting piece 342 has completely passed through the limiting hole 33, the limiting piece 342 will elastically reset under its own action, thereby limiting the connecting rod 341 within the limiting hole 33. In this way, under the action of the connecting rod 341, the protective sleeve 21 can be limited to the outside of the surge arrester body 1, thereby improving the protection effect of the protective sleeve 21 on the connection points of the surge arrester body 1 terminals and high-voltage wires.

[0042] 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 these 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 protective structure for a surge arrester, characterized in that, Including the surge arrester body (1); A protective assembly (2) that can be fitted onto the outside of the surge arrester body (1) includes a protective sleeve (21) that can be fitted onto the outside of the surge arrester body (1); and a through pipe (24) that can be connected to the outside of the protective sleeve (21). The limiting component (3) is detachably disposed on the outside of the surge arrester body (1), and the outside of the protective sleeve (21) is disposed on the limiting component (3).

2. The protection structure of the surge arrester according to claim 1, characterized in that, The protective component (2) includes a relief groove (22) formed on the inner side of the protective sleeve (21); The first sealing ring (23) is located inside the relief groove (22); At least two second sealing rings (25) are evenly distributed on the inside of the through pipe (24).

3. The protection structure of the surge arrester according to claim 2, characterized in that, The cross-sections of the first sealing ring (23) and the second sealing ring (25) are both acute-angled triangles, and the larger end of the first sealing ring (23) and the second sealing ring (25) is located inside the relief groove (22).

4. The protection structure of the surge arrester according to claim 2, characterized in that, The protective sleeve (21) is a rubber protective sleeve; The mounting hole is located on the outside of the protective sleeve (21), and the through pipe (24) is located on the inside of the mounting hole.

5. The protection structure of the surge arrester according to claim 4, characterized in that, The limiting component (3) includes a butterfly sleeve (31) which is detachably disposed on the outside of the surge arrester body (1); Two connecting blocks (32) are symmetrically arranged on the outside of the butterfly sleeve (31); Two limiting holes (33) are respectively opened on the upper surface of the connecting block (32); Two connectors (34) are slidably disposed inside the two limiting holes (33).

6. The protection structure of the surge arrester according to claim 5, characterized in that, The connector (34) includes a connecting rod (341) which is slidably disposed inside the limiting hole (33), and the upper end of the connecting rod (341) is disposed outside the protective sleeve (21). A number of limiting pieces (342) are evenly distributed on the outside of the connecting rod (341).

7. The protection structure of the surge arrester according to claim 6, characterized in that, The limiting piece (342) is an elastic limiting piece, and the lower end of the limiting piece (342) is inclined and located on the outside of the connecting rod (341). The upper surface of the limiting piece (342) is in contact with the lower surface of the connecting block (32).

8. The protection structure of the surge arrester according to claim 7, characterized in that, The butterfly sleeve (31) is a rubber butterfly sleeve, and the inner side of the butterfly sleeve (31) is adapted to the outer side of the surge arrester body (1).

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