Novel external gap lightning arrester

Abstract

The utility model provides a novel external gap lightning arrester which comprises a lightning arrester body, an anti-fouling skirt is integrally arranged on the outer wall of the lightning arrester body, and a shielding protection seat structure is fixed on the lower side of the anti-fouling skirt; an upper insulating seat is integrally arranged at the lower end of the lightning arrester body; the lower end of the lightning arrester body is in threaded connection with an upper discharge electrode, and the upper side of the upper discharge electrode penetrates through the upper insulating seat; connecting columns are installed on the periphery of the lower side of the upper insulating base through bolts. A lower insulating seat is mounted at the lower end of the connecting column; a lower discharge electrode is fixed in the middle of the lower insulating seat; and the upper end of the lightning arrester body and the lower side of the lower insulating seat are both provided with connecting, clamping and fixing seat structures. According to the utility model, through the arrangement of the connection clamping fixing seat structure, the lightning arrester can be fixed at the upper end of the lightning arrester body and the lower end of the lower discharge electrode, so as to be matched with a bracket for fastening installation, and avoid deformation and damage easily caused by large pressure due to small installation area.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wire lightning protection, and in particular relates to a novel external gap lightning arrester. Background Art

[0002] External gap arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards and limit the follow-through time and often the follow-through amplitude. The traditional external gap arrester includes an arrester body, an insulating bracket and a discharge gap. The discharge gap includes a first discharge electrode and a second discharge electrode. The first discharge electrode is fixedly connected to the arrester body through one side of the insulating bracket, and the second discharge electrode is fixed to the other side of the insulating bracket through a connector. The first discharge electrode and the second discharge electrode are both horizontally arranged. It has the advantages of being able to ensure the stability of the power frequency withstand voltage of the discharge gap, extending the service life of the arrester, and improving the safety and reliability of the operation of the transmission line. However, the contact area at the installation site is small, so the installation site is easily damaged during long-term fastening installation, and its exposed surface is easily stained, resulting in uneven voltage distribution. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a novel external gap arrester, which can shield and protect the surface to prevent stains that would cause uneven voltage distribution and increase the contact area at the installation site to avoid affecting the installation.

[0004] The technical solution is as follows: a new type of external gap lightning arrester, including a lightning arrester body, an anti-pollution skirt is integrated on the outer wall of the lightning arrester body, and a shielding guard seat structure is fixed on the lower side of the anti-pollution skirt; an upper insulating seat is integrated at the lower end of the lightning arrester body; an upper discharge electrode is threadedly connected to the lower end of the lightning arrester body, and the upper side of the upper discharge electrode passes through the upper insulating seat; connecting columns are bolted around the lower side of the upper insulating seat; a lower insulating seat is bolted at the lower end of the connecting column; a lower discharge electrode is fixed to the middle part of the lower insulating seat; a connecting clamping and fixing seat structure is installed at the upper end of the lightning arrester body and the lower side of the lower insulating seat, characterized in that the connecting clamping and fixing seat structure includes a mounting ring, and an insertion tube is integrated in the middle part of the mounting ring; and anti-slip seats are inlaid on both sides of the upper end of the mounting ring.

[0005] Preferably, the mounting ring is a ceramic ring, and is sleeved on the upper end of the arrester body and the lower side of the lower discharge electrode in cooperation with the insertion tube.

[0006] Preferably, a plurality of anti-slip seats are provided, and the anti-slip seats are rubber seats.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] In the utility model, the installation ring can be fixed on the upper end of the arrester body and the lower end of the lower discharge electrode, so as to be installed in coordination with the bracket to avoid deformation and damage due to high pressure at a small installation area.

[0009] In the utility model, the arrangement of the insertion tube and the anti-slip seat contacts the bracket at the installation location, thereby performing anti-slip and pressure relief protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a structural schematic diagram of the connection clamping fixing seat structure of the utility model.

[0012] Figure 3 It is a structural schematic diagram of the shielding guard seat structure of the utility model.

[0013] Figure 4 It is a structural schematic diagram of the connecting sealing ring structure of the utility model.

[0014] In the figure:

[0015] 1. Arrester body; 2. Shielding seat structure; 21. First shielding seat; 22. Second shielding seat; 23. Connection sealing ring structure; 231. Ring body; 232. Sealing sleeve ring; 233. Side assembly seat; 234. Sealing strip; 3. Upper discharge electrode; 4. Upper insulating seat; 5. Connecting column; 6. Lower insulating seat; 7. Lower discharge electrode; 8. Anti-fouling skirt; 9. Connection clamping and fixing seat structure; 91. Mounting ring; 92. Insertion tube; 93. Anti-slip seat. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings:

[0017] Example:

[0018] As attached Figure 1 As shown, a new type of external gap lightning arrester includes a lightning arrester body 1, an anti-pollution skirt 8 is integrated on the outer wall of the lightning arrester body 1, and a shielding protective seat structure 2 is fixed on the lower side of the anti-pollution skirt 8; an upper insulating seat 4 is integrated at the lower end of the lightning arrester body 1; an upper discharge electrode 3 is threadedly connected to the lower end of the lightning arrester body 1, and the upper side of the upper discharge electrode 3 passes through the upper insulating seat 4; connecting columns 5 are bolted around the lower side of the upper insulating seat 4; a lower insulating seat 6 is bolted at the lower end of the connecting column 5; a lower discharge electrode 7 is fixed to the middle part of the lower insulating seat 6; a connecting clamping fixing seat structure 9 is installed on the upper end of the lightning arrester body 1 and the lower side of the lower insulating seat 6.

[0019] As attached Figure 2As shown, in the above embodiment, specifically, the connecting clamping fixing seat structure 9 includes a mounting ring 91, and an insertion tube 92 is integrally provided in the middle part of the mounting ring 91; the left and right sides of the upper end of the mounting ring 91 are inlaid with anti-slip seats 93; the mounting ring 91 and the insertion tube 92 are sleeved on the outer side of the screw, and then the nut is turned onto the screw to tighten the mounting ring 91 to complete the installation.

[0020] As attached Figure 3 As shown, in the above embodiment, specifically, the shielding seat structure 2 includes a first shielding seat 21 and a second shielding seat 22 , and a connecting sealing ring structure 23 is fixed on the upper side of the first shielding seat 21 and the second shielding seat 22 .

[0021] As attached Figure 4 As shown, in the above embodiment, specifically, the connecting sealing ring structure 23 includes a ring body 231, and the left and right parts of the lower side of the ring body 231 are bolted with the first shielding seat 21 and the second shielding seat 22; the lower side of the inside of the ring body 231 is inlaid with a sealing ring 232; the lower side of the ring body 231 is integrated with a side assembly seat 233, and the side assembly seat 233 is arranged on the inner side of the sealing ring 232; the lower part of the outer wall of the side assembly seat 233 is inlaid with a sealing strip 234; the ring body 231 above the first shielding seat 21 and the second shielding seat 22 is made to contact with the bottom of the anti-fouling skirt 8 and then bolted.

[0022] In the above embodiment, specifically, the first shielding seat 21 and the second shielding seat 22 are both ceramic seats, and are both sleeved on the outer wall of the arrester body 1 to shield the outer wall of the arrester body 1 to prevent contamination and uneven voltage distribution.

[0023] In the above embodiment, specifically, the ring body 231 is bolted to the lower end of the anti-fouling skirt 8, and the ring body 231 is a ceramic ring, which is installed in conjunction with the first shielding seat 21 and the second shielding seat 22.

[0024] In the above embodiment, specifically, the sealing strip 234 on the outer side of the side assembly seat 233 is a rubber strip, and both contact the inner walls of the first shielding seat 21 and the second shielding seat 22 to seal the connection between the first shielding seat 21 and the second shielding seat 22.

[0025] How it works

[0026] The working principle of the utility model is as follows: when using lightning arrester, the screw at the upper end of the arrester body 1 and the screw at the lower end of the lower discharge electrode 7 are inserted into the bracket, and then the mounting ring 91 and the insertion tube 92 are sleeved on the outside of the screw, and finally the nut is turned into the screw to tighten the mounting ring 91 to complete the installation. After installation, the ring body 231 above the first shielding seat 21 and the second shielding seat 22 is in contact with the bottom of the anti-fouling skirt 8 and then bolted. In this way, the arrester body 1 can cooperate with the upper discharge electrode 3 and the lower discharge electrode 7 to perform lightning arresting, and is anti-fouling through the first shielding seat 21 and the second shielding seat 22.

[0027] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A novel external gap lightning arrester, the novel external gap lightning arrester comprises a lightning arrester body (1), an anti-pollution skirt (8) is integrally arranged on the outer wall of the lightning arrester body (1), and a shielding seat structure (2) is fixed on the lower side of the anti-pollution skirt (8); an upper insulating seat (4) is integrally arranged on the lower end of the lightning arrester body (1); an upper discharge electrode (3) is threadedly connected to the lower end of the lightning arrester body (1), and the upper side of the upper discharge electrode (3) passes through the upper insulating seat (4); connecting columns (5) are bolted around the lower side of the upper insulating seat (4); a lower insulating seat (6) is bolted to the lower end of the connecting column (5); a lower discharge electrode (7) is fixed to the middle part of the lower insulating seat (6); a connecting clamping fixing seat structure (9) is installed on the upper end of the lightning arrester body (1) and the lower side of the lower insulating seat (6), characterized in that The connecting clamping fixing seat structure (9) comprises a mounting ring (91), the middle part of which is integrally provided with an inserting tube (92); and the left and right sides of the upper end of the mounting ring (91) are both inlaid with anti-slip seats (93).

2. The novel external gap arrester as claimed in claim 1 is characterized in that: The shielding seat structure (2) comprises a first shielding seat (21) and a second shielding seat (22), and a connecting sealing ring structure (23) is fixed on the upper side of the first shielding seat (21) and the second shielding seat (22).

3. The novel external gap arrester as claimed in claim 2 is characterized in that: The connecting sealing ring structure (23) comprises a ring body (231), and the left and right parts of the lower side of the ring body (231) are both bolted with a first shielding seat (21) and a second shielding seat (22); the lower side of the interior of the ring body (231) is inlaid with a sealing collar (232); the lower side of the ring body (231) is integrally provided with a side assembly seat (233), and the side assembly seat (233) is arranged on the inner side of the sealing collar (232); and the lower part of the outer wall of the side assembly seat (233) is inlaid with a sealing strip (234).

4. The novel external gap arrester according to claim 1 is characterized in that: The mounting ring (91) is a ceramic ring and is sleeved on the upper end of the arrester body (1) and the lower side of the lower discharge electrode (7) in cooperation with the insertion tube (92). A plurality of anti-slip seats (93) are provided and the anti-slip seats (93) are rubber seats.

5. The novel external gap arrester as claimed in claim 3 is characterized in that: The first shielding seat (21) and the second shielding seat (22) are both ceramic seats, and are both sleeved on the outer wall of the arrester body (1).

6. The novel external gap arrester as claimed in claim 3 is characterized in that: The ring body (231) is bolted to the lower end of the anti-fouling skirt (8), and the ring body (231) is a ceramic ring.

7. The novel external gap arrester as claimed in claim 3 is characterized in that: The sealing strips (234) on the outside of the side assembly seat (233) are made of rubber strips and both contact the inner walls of the first shielding seat (21) and the second shielding seat (22).

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