Anti-breakdown structure of zinc oxide lightning arrester

Abstract

The utility model discloses an anti-breakdown structure of a zinc oxide lightning arrester, comprising an anti-breakdown zinc oxide lightning arrester, the upper end of the anti-breakdown zinc oxide lightning arrester is provided with an upper connecting column, the bottom of the anti-breakdown zinc oxide lightning arrester is provided with a cover plate, and the cover plate is provided with a lower connecting column connected with the anti-breakdown zinc oxide lightning arrester. The cover plate is connected with the anti-breakdown zinc oxide lightning arrester through a connecting mechanism, the connecting mechanism comprises a connecting cover, a connecting block is fixedly connected in the connecting cover, a spring is fixedly connected onto the connecting block, the other end of the spring is connected with the cover plate, and an inserting rod is fixed on the connecting cover. According to the utility model, the cover plate and the anti-breakdown zinc oxide lightning arrester can be conveniently assembled and disassembled, the operation is simple and rapid, the spring and the insertion rod can be shaded through the connecting cover and cannot be exposed to the weather, and the stability of the connection between the cover plate and the anti-breakdown zinc oxide lightning arrester is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arresters, in particular to an anti-breakdown structure of a zinc oxide lightning arrester. Background Art

[0002] An explosion-proof zinc oxide lightning arrester with publication number CN115458260A comprises an insulating barrel, a built-in quick disconnector and a zinc oxide valve plate group arranged in the insulating barrel, an upper terminal arranged at one end of the insulating barrel and a lower terminal arranged at the other end of the insulating barrel; one end of the zinc oxide valve plate group is connected to the upper terminal, and the other end is connected to the built-in quick disconnector, and the end of the built-in quick disconnector away from the zinc oxide valve plate group is connected to the lower terminal; a sampler is also connected in parallel to the built-in quick disconnector, and a status monitoring light is connected in parallel to the sampling resistor of the sampler; through the zinc oxide lightning arrester provided by the present invention, when the system has a long-term overvoltage, the status monitoring light can be used to promptly inform the outside world and take measures, thereby avoiding the zinc oxide valve plate from passing a large current for a long time, so that the injected energy is greater than the flow rate, thereby avoiding the problem of thermal collapse and explosion.

[0003] The disadvantage of the above-mentioned prior art is that when the circuit where the status indicator light is located is damaged, the base needs to be further disassembled. The above-mentioned prior art is inconvenient to further disassemble the base, and thus it is inconvenient to maintain the circuit where the status indicator light is located. Therefore, the utility model proposes an anti-breakdown structure of a zinc oxide lightning arrester. Utility Model Content

[0004] The utility model aims to solve the above technical problems and proposes an anti-breakdown structure for a zinc oxide lightning arrester.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A breakdown prevention structure for a zinc oxide lightning arrester comprises a breakdown prevention zinc oxide lightning arrester, wherein an upper connecting column is installed at the upper end of the breakdown prevention zinc oxide lightning arrester, a cover plate is installed at the bottom of the breakdown prevention zinc oxide lightning arrester, a lower connecting column connected to the breakdown prevention zinc oxide lightning arrester is installed on the cover plate, the cover plate is connected to the breakdown prevention zinc oxide lightning arrester through a connecting mechanism, the connecting mechanism comprises a connecting cover, a connecting block is fixedly connected to the connecting cover, a spring is fixedly connected to the connecting block, the other end of the spring is connected to the cover plate, a plug rod is fixed to the connecting cover, a slot is provided on the outer wall of the breakdown prevention zinc oxide lightning arrester, and the plug rod is movably connected in the slot.

[0007] Preferably, the connection block is penetrated by a through hole, and the insertion rod passes through the through hole and is fixedly connected to the inner wall thereof.

[0008] Preferably, the insertion rod is arranged to penetrate the spring, and the outer diameter of the insertion rod is smaller than the inner diameter of the spiral spring.

[0009] Preferably, a sealing ring is provided between the cover plate and the anti-breakdown zinc oxide arrester.

[0010] Preferably, an annular groove is provided on the outer wall of the cover plate, and the connecting cover extends into the annular groove.

[0011] Preferably, a rubber sleeve is fixed to the outer wall of the connecting cover extending to the end of the annular groove, and the rubber sleeve is disposed against the inner wall of the annular groove.

[0012] Preferably, it also includes a protection mechanism, which includes a mounting ring fixed on the anti-breakdown zinc oxide arrester, an umbrella-type protective cover is installed on the outer wall of the mounting ring, and the umbrella-type protective cover is connected to the mounting ring through a detachable mechanism.

[0013] Preferably, the outer wall of the mounting ring is provided with an external thread, and the umbrella-mounted protective cover is provided with an internal thread, and the external thread is meshed with the internal thread.

[0014] Preferably, a through groove is formed through the upper and lower ends of the umbrella-mounted protective cover, and the internal thread is arranged on the inner wall of the through groove.

[0015] Preferably, a limiting ring is fixed to the inner wall of the mounting ring, and the limiting ring is disposed against the inner top of the umbrella-mounted protective cover.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. Pull the connecting cover by hand. The movement of the connecting cover drives the plug rod to move and disengage from the slot. At this time, the cover is no longer limited. The cover can be moved down to maintain the inside of the anti-breakdown zinc oxide lightning arrester. It is convenient to disassemble the cover.

[0018] 2. The umbrella-mounted protective cover can protect the anti-breakdown zinc oxide lightning arrester from the damage of sun protection, wind and rain weather and hail. When the umbrella-mounted protective cover needs to be replaced, the staff can turn the umbrella-mounted protective cover to remove it, which is convenient and quick.

[0019] 3. By setting a limit ring, the umbrella-mounted protective cover can be blocked to prevent it from being installed on the mounting ring and rotating excessively, causing it to move below the mounting ring. When the umbrella-mounted protective cover and the limit ring are against each other, a stable connection between the umbrella-mounted protective cover and the mounting ring can be ensured.

[0020] In summary, the utility model facilitates the installation and disassembly of the cover plate and the anti-breakdown zinc oxide lightning arrester, and the operation is simple and quick. The spring and the plug rod can be shielded by the connecting cover to prevent them from being exposed to wind and sun, thereby ensuring the stability of the connection between the cover plate and the anti-breakdown zinc oxide lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic structural diagram of an anti-breakdown structure of a zinc oxide lightning arrester proposed in Example 1;

[0022] Figure 2 A schematic diagram of the structure of point A in the anti-breakdown structure of a zinc oxide lightning arrester proposed in Example 1;

[0023] Figure 3 A schematic diagram of the structure of an anti-breakdown structure of a zinc oxide lightning arrester proposed in Example 2;

[0024] Figure 4 This is a schematic structural diagram of an anti-breakdown structure of a zinc oxide lightning arrester proposed in Example 3.

[0025] In the figure: 1 anti-breakdown zinc oxide lightning arrester, 2 upper connecting column, 3 cover plate, 4 lower connecting column, 5 slot, 6 sealing ring, 7 connecting cover, 8 annular groove, 9 rubber sleeve, 10 plug rod, 11 spring, 12 connecting block, 13 umbrella-mounted protective cover, 14 mounting ring, 15 limit ring, 16 external thread, 17 internal thread. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Example 1

[0028] Reference Figure 1-2 , an anti-breakdown structure of a zinc oxide lightning arrester, comprising an anti-breakdown zinc oxide lightning arrester 1, an upper connecting column 2 is installed at the upper end of the anti-breakdown zinc oxide lightning arrester 1, a cover plate 3 is installed at the bottom of the anti-breakdown zinc oxide lightning arrester 1, a lower connecting column 4 connected to the anti-breakdown zinc oxide lightning arrester 1 is installed on the cover plate 3, and a sealing ring 6 is provided between the cover plate 3 and the anti-breakdown zinc oxide lightning arrester 1 to increase the sealing between the two;

[0029] The cover plate 3 is connected to the anti-breakdown zinc oxide arrester 1 through a connecting mechanism, and the connecting mechanism includes a connecting cover 7. The outer wall of the cover plate 3 is provided with an annular groove 8. The connecting cover 7 extends into the annular groove 8. The outer wall of the connecting cover 7 extending to the end of the annular groove 8 is fixed with a rubber sleeve 9, and the rubber sleeve 9 is arranged to abut against the inner wall of the annular groove 8.

[0030] A connecting block 12 is fixedly connected inside the connecting cover 7, a spring 11 is fixedly connected to the connecting block 12, the other end of the spring 11 is connected to the cover plate 3, an insert rod 10 is fixed on the connecting cover 7, a through hole is penetrated on the connecting block 12, the insert rod 10 penetrates the through hole and is fixedly connected to the inner wall thereof, the insert rod 10 penetrates the spring 11, the outer diameter of the insert rod 10 is smaller than the spiral inner diameter of the spring 11, a slot 5 is provided on the outer wall of the anti-breakdown zinc oxide arrester 1, and the insert rod 10 is movably connected in the slot 5.

[0031] In this embodiment, when it is necessary to maintain the inside of the anti-breakdown zinc oxide lightning arrester 1, the staff pulls the connecting cover 7 by hand, and the movement of the connecting cover 7 drives the plug 10 to move and disengage from the slot 5. At this time, the cover plate 3 is no longer limited, and the cover plate 3 can be moved down to maintain the inside of the anti-breakdown zinc oxide lightning arrester 1, which is convenient for disassembly of the cover plate 3;

[0032] After installation, the connection cover 7 is as shown Figure 2 As shown, the spring 11 and the plug rod 10 can be shielded by the connecting cover 7 to prevent them from being exposed to wind and sun. In this way, the spring 11 and the plug rod 10 can be protected to ensure that the plug rod 10 can be stably inserted into the slot 5, thereby ensuring the stability of the connection between the cover plate 3 and the anti-breakdown zinc oxide lightning arrester 1.

[0033] Example 2

[0034] Reference Figure 3 , the difference between this embodiment and embodiment 1 is that this embodiment also includes a protection mechanism, the protection mechanism includes a mounting ring 14 fixed on the anti-breakdown zinc oxide lightning arrester 1, the outer wall of the mounting ring 14 is installed with an umbrella-mounted protective cover 13, the umbrella-mounted protective cover 13 is connected to the mounting ring 14 through a detachable mechanism, the outer wall of the mounting ring 14 is provided with an external thread 16, the umbrella-mounted protective cover 13 is provided with an internal thread 17, the external thread 16 is meshed with the internal thread 17, the upper end of the umbrella-mounted protective cover 13 is penetrated by a through groove, and the internal thread 17 is arranged on the inner wall of the through groove;

[0035] The umbrella-mounted protective cover 13 can protect the anti-breakdown zinc oxide lightning arrester 1 from the damage of sun protection, erosion by wind and rain, and hail. When the umbrella-mounted protective cover 13 needs to be replaced, the staff can turn the umbrella-mounted protective cover 13 to remove it, which is convenient and quick.

[0036] Example 3

[0037] Reference Figure 4The difference between this embodiment and embodiments 1 and 2 is that, in this embodiment, a limiting ring 15 is fixed to the inner wall of the mounting ring 14, and the limiting ring 15 is set to abut against the inner top of the umbrella-mounted protective cover 13. By setting the limiting ring 15, the umbrella-mounted protective cover 13 can be blocked to prevent it from being installed on the mounting ring 14 and rotating excessively, causing it to move to the bottom of the mounting ring 14. When the umbrella-mounted protective cover 13 abuts against the limiting ring 15, the stable connection between the umbrella-mounted protective cover 13 and the mounting ring 14 can be ensured.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-breakdown structure of a zinc oxide lightning arrester, comprising an anti-breakdown zinc oxide lightning arrester (1), wherein an upper connecting column (2) is installed at the upper end of the anti-breakdown zinc oxide lightning arrester (1), a cover plate (3) is installed at the bottom of the anti-breakdown zinc oxide lightning arrester (1), and a lower connecting column (4) connected to the anti-breakdown zinc oxide lightning arrester (1) is installed on the cover plate (3), characterized in that: The cover plate (3) is connected to the anti-breakdown zinc oxide lightning arrester (1) through a connecting mechanism, the connecting mechanism comprises a connecting cover (7), a connecting block (12) is fixedly connected to the connecting cover (7), a spring (11) is fixedly connected to the connecting block (12), the other end of the spring (11) is connected to the cover plate (3), a plug rod (10) is fixed to the connecting cover (7), a slot (5) is provided on the outer wall of the anti-breakdown zinc oxide lightning arrester (1), and the plug rod (10) is movably connected in the slot (5).

2. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 1, characterized in that: The connection block (12) is provided with a through hole, and the insertion rod (10) passes through the through hole and is fixedly connected to the inner wall thereof.

3. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 1, characterized in that: The insertion rod (10) is arranged to penetrate the spring (11), and the outer diameter of the insertion rod (10) is smaller than the inner diameter of the spiral spring (11).

4. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 1, characterized in that: A sealing ring (6) is provided between the cover plate (3) and the anti-breakdown zinc oxide arrester (1).

5. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 1, characterized in that: An annular groove (8) is provided on the outer wall of the cover plate (3), and the connecting cover (7) extends into the annular groove (8).

6. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 5, characterized in that: A rubber sleeve (9) is fixed to the outer wall of the connecting cover (7) extending to the end of the annular groove (8), and the rubber sleeve (9) is arranged to abut against the inner wall of the annular groove (8).

7. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 1, characterized in that: It also comprises a protection mechanism, which comprises a mounting ring (14) fixed on the anti-breakdown zinc oxide arrester (1), an outer wall of the mounting ring (14) is mounted with an umbrella-type protection cover (13), and the umbrella-type protection cover (13) is connected to the mounting ring (14) via a detachable mechanism.

8. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 7, characterized in that: The outer wall of the mounting ring (14) is provided with an external thread (16), the umbrella-mounted protective cover (13) is provided with an internal thread (17), and the external thread (16) is meshed with the internal thread (17).

9. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 8, characterized in that: A through groove is formed through the upper and lower ends of the umbrella-mounted protective cover (13), and the internal thread (17) is arranged on the inner wall of the through groove.

10. The anti-breakdown structure of a zinc oxide lightning arrester according to claim 7, characterized in that: A limiting ring (15) is fixed on the inner wall of the mounting ring (14), and the limiting ring (15) is arranged to abut against the inner top of the umbrella-mounted protective cover (13).

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