Composite insulation zinc oxide single lightning arrester

Abstract

The utility model relates to a composite insulation zinc oxide single lightning arrester, in particular to a composite insulation zinc oxide single lightning arrester which comprises a lightning arrester body, a fixed base is fixedly connected to the lower end of the outer surface of the lightning arrester body, and a grounding wire is sleeved at the lower end of the outer surface of the lightning arrester body. A protective device is fixedly connected to the upper surface of the fixed base, the composite insulation zinc oxide single lightning arrester is important electrical equipment, and the problem that when the lightning arrester is used, the service life of a grounding wire is shortened, and the lightning arrester is affected to guide current into the ground is solved by arranging the protective device. The performance and the service life of the grounding wire are guaranteed by protecting the grounding wire and the interface of the grounding wire from being exposed to rain, wind and the sun and delaying aging and damage of the grounding wire, the lightning arrester is secondarily fixed after basic installation by arranging the auxiliary fixing device, the lightning arrester is prevented from inclining and shaking, and the service life of the lightning arrester is prolonged. And the use effect of the lightning arrester is influenced.

Description

Technical Field

[0001] The utility model relates to a composite insulation zinc oxide single arrester, in particular to a composite insulation zinc oxide single arrester. Background Technique

[0002] The composite insulation zinc oxide single arrester is an important electrical equipment, mainly used to protect the equipment in the power system from lightning overvoltage and switching overvoltage damage, limit the voltage rise, and effectively protect the electrical equipment. The performance of the arrester will gradually decline over time and with the change of the working environment. Therefore, it is necessary to regularly check and maintain it to ensure its normal operation and effectiveness;

[0003] The grounding wire is a key component for the arrester to conduct current into the ground. Without the grounding wire, it is impossible to effectively conduct the current and achieve the lightning protection effect. Therefore, the grounding wire is a very important component. However, the grounding wire is exposed to the outside all year round, exposed to wind, sun and rain, which causes great damage and influence to the performance of the grounding wire, greatly reduces the service life of the arrester, causes serious property losses, and there will also be serious safety hazards. Moreover, the installation location of the arrester is relatively demanding, it is very difficult to install and fix firmly, and it is easy to loosen, thus affecting the use of the arrester. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a composite insulation zinc oxide single arrester to solve the problems raised in the related technology. The grounding wire is a key component for the arrester to conduct current into the ground. Without the grounding wire, it is impossible to effectively conduct the current and achieve the lightning protection effect. Therefore, the grounding wire is a very important component. However, the grounding wire is exposed to the outside all year round, exposed to wind, sun and rain, which causes great damage and influence to the performance of the grounding wire, greatly reduces the service life of the arrester, causes serious property losses, and there will also be serious safety hazards. Moreover, the installation location of the arrester is relatively demanding, it is very difficult to install and fix firmly, and it is easy to loosen, thus affecting the use of the arrester.

[0005] To achieve the above object, according to one aspect of the utility model, there is provided a composite insulation zinc oxide single arrester, including an arrester body. A fixed base is fixedly connected to the lower end of the outer surface of the arrester body. A grounding wire is sleeved on the lower end of the outer surface of the arrester body. A protection device is fixedly connected to the upper surface of the fixed base. An auxiliary fixing device is arranged on the lower surface of the fixed base. The protection device includes a rectangular shell, and a round hole is opened on the upper surface of the rectangular shell.

[0006] Further, a rectangular cavity is arranged on the inner wall of the rectangular shell. A wire passing hole is opened on one side of the inner wall of the rectangular cavity. The surface area size and shape of the inner wall of the wire passing hole are larger than the outer surface area size and shape of the grounding wire.

[0007] Further, rectangular frames are fixedly connected to the left and right sides of the rectangular cavity on the outer surface of the rectangular shell. A first spring is fixedly connected to the bottom of the inner wall of the rectangular frame. The upper end of the outer surface of the first spring is fixedly connected to a cover plate, and a limiting block is fixedly connected to one side of the outer surface of the cover plate.

[0008] Further, two connecting blocks are fixedly connected to one side of the outer surface of the rectangular shell. A sliding rod is fixedly connected to the bottom of the inner wall of the connecting block. A second spring is sleeved on the outer surface of the sliding rod. One side of the outer surface of the second spring is fixedly connected to a concave rod, and the inner wall of the concave rod is slidably connected to the outer surface of the sliding rod.

[0009] Further, the auxiliary fixing device includes an auxiliary plate fixedly connected to the lower surface of the fixing base. A rectangular groove is formed on one side of the outer surface of the auxiliary plate. A bidirectional threaded rod is rotatably connected to the inner wall of the rectangular groove, and a rotating block is fixedly connected to one side of the outer surface of the bidirectional threaded rod.

[0010] Further, a slider is threadedly connected to the outer surface of the bidirectional threaded rod, and a clamping plate is fixedly connected to one side of the outer surface of the slider.

[0011] Compared with the prior art, the present utility model has the following beneficial effects: The composite insulation zinc oxide single-piece lightning arrester is an important electrical equipment. By setting the protection device, the problem that the service life of the grounding wire becomes shorter when the lightning arrester is used, which affects the lightning arrester's ability to conduct current into the ground, is solved. By protecting the grounding wire and the interface of the grounding wire from rain, wind, sun and exposure, the aging and damage of the grounding wire are delayed, thereby ensuring the performance and service life of the grounding wire. By setting the auxiliary fixing device, after the lightning arrester is installed on the foundation, the lightning arrester is secondarily fixed to prevent the lightning arrester from tilting and shaking, which affects the use effect of the lightning arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is a schematic diagram of the grounding wire structure of the present utility model;

[0014] Figure 3 is a schematic diagram of the protection device structure of the present utility model;

[0015] Figure 4 is a schematic diagram of the auxiliary fixing device structure of the present utility model.

[0016] Illustration: 1. Surge arrester body; 2. Fixed base; 3. Grounding wire; 4. Protection device; 5. Auxiliary fixing device; 41. Rectangular shell; 42. Round hole; 43. Rectangular cavity; 44. Threading hole; 45. Rectangular frame; 46. First spring; 47. Cover plate; 48. Limit block; 49. Connecting block; 410. Slide bar; 411. Second spring; 412. Concave rod; 51. Auxiliary plate; 52. Rectangular groove; 53. Bi-directional threaded rod; 54. Rotating block; 55. Slide block; 56. Clamping plate. Detailed implementation manners

[0017] To further elaborate on the technical means and effects adopted by the utility model to achieve the intended utility model purpose, the following combines the accompanying drawings and preferred embodiments to detail the specific implementation manners, structures, features and their effects of the present utility model as follows.

[0018] Please refer to Figures 1-4 As shown in the figure, the purpose of this embodiment is to provide a composite insulation zinc oxide single - pole surge arrester, including a surge arrester body 1. The lower end of the outer surface of the surge arrester body 1 is fixedly connected with a fixed base 2. The lower end of the outer surface of the surge arrester body 1 is sleeved with a grounding wire 3. The upper surface of the fixed base 2 is fixedly connected with a protection device 4. The lower surface of the fixed base 2 is provided with an auxiliary fixing device 5. The protection device 4 includes a rectangular shell 41. A round hole 42 is opened on the upper surface of the rectangular shell 41. By providing the rectangular shell 41, it is used to cover the interface of the grounding wire 3 at the bottom end of the surge arrester body 1 to prevent the interface of the grounding wire 3 from being eroded by rainwater and water vapor in the air, affecting the conductivity of the grounding wire 3.

[0019] It should be noted that the surge arrester body 1 is made of ceramic material, and a layer of composite insulation zinc oxide is coated on its surface to enhance its insulation.

[0020] The inner wall of the rectangular shell 41 is provided with a rectangular cavity 43. One side of the inner wall of the rectangular cavity 43 is provided with a threading hole 44. The surface area size and shape of the inner wall of the threading hole 44 are larger than the outer surface area size and shape of the grounding wire 3. By providing the rectangular cavity 43, it is used to store the grounding wire 3. Separating the grounding wire 3 and the wire for storage can quickly connect the grounding wire 3 with the external circuit. At the same time, after docking, the docking part is stored inside the rectangular cavity 43 for protection.

[0021] On the left and right sides of the rectangular cavity 43 on the outer surface of the rectangular shell 41, there are respectively fixedly connected with rectangular frames 45. At the bottom of the inner wall of the rectangular frame 45, there is fixedly connected with a first spring 46. At the upper end of the outer surface of the first spring 46, there is fixedly connected with a cover plate 47. On one side of the outer surface of the cover plate 47, there is fixedly connected with a limiting block 48. By setting the cover plate 47, it is used to protect the wire body when the grounding wire 3 is pulled out, avoid erosion and extend the service life of the grounding wire 3. It should be noted that the setting of the first spring 46 enables the cover plate 47 to automatically close and also plays a role in fixing the cover plate 47, so that the cover plate 47 will not break away from the rectangular shell 41;

[0022] On one side of the outer surface of the rectangular shell 41, there are fixedly connected with two connecting blocks 49. The inside of the connecting block 49 is hollow. At the bottom of the inner wall of the connecting block 49, there is fixedly connected with a sliding rod 410. A second spring 411 is sleeved on the outer surface of the sliding rod 410. On one side of the outer surface of the second spring 411, there is fixedly connected with a concave rod 412. The concave rod 412 is slidably sleeved on the sliding rod 410. By setting the sliding rod 410, the second spring 411 and the concave rod 412, it is used to cooperate with the limiting block 48 on the cover plate 47 to fix the opened cover plate 47 in an always-opened state, which is convenient for the storage and maintenance of the grounding wire 3;

[0023] The auxiliary fixing device 5 includes an auxiliary plate 51. The auxiliary plate 51 is fixedly connected with the lower surface of the fixed base 2. On one side of the outer surface of the auxiliary plate 51, there is opened a rectangular groove 52. Inside the inner wall of the rectangular groove 52, there is rotatably connected with a bidirectional threaded rod 53. On one side of the outer surface of the bidirectional threaded rod 53, there is fixedly connected with a rotating block 54. By setting the bidirectional threaded rod 53, it is used to drive the two clamping plates 56 to move away from and close to each other, so as to achieve the effect of adjusting the distance between the clamping plates 56;

[0024] The outer surface of the bidirectional threaded rod 53 is threadedly connected with a slider 55. On one side of the outer surface of the slider 55, there is fixedly connected with a clamping plate 56. By setting the clamping plate 56, it is used to clamp the bracket on the electric pole body for supporting and fixing the arrester body 1, so that the fixed base 2 will not tilt and shake after being fixed, and the fixed base 2 is strengthened.

[0025] When the utility model is specifically used, the concave rod 412 is pulled outwards, so as to stretch the second spring 411. While pulling outwards, the cover plate 47 is pulled upwards. At this time, the first spring 46 is stretched. When the limiting block 48 is separated from the concave rod 412, the limiting block 48 is released to enable the cover plate 47 to return to the bottom of the rectangular frame 45, covering the rectangular cavity 43, blocking the wire body of the grounding wire 3 in the rectangular shell 41, passing the head of the grounding wire 3 through the through hole on the cover plate 47 to be connected to the outside, fixing and installing the fixing base 2 and the auxiliary fixing device 5 on the fixing base 2 together on the bracket of the electric pole body by using components such as bolts, and then driving the bidirectional threaded rod 53 to rotate by using the rotating block 54 until the two clamping plates 56 tightly clamp the bracket on the electric pole body for supporting and fixing the lightning arrester body 1, avoiding the lightning arrester body 1 from tilting and shaking. After that, the grounding wire 3 is connected. When encountering thunderstorm weather, the lightning current can be effectively separated and guided, thereby protecting electrical equipment and buildings from lightning strikes.

[0026] To further elaborate on the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific implementation manner, structure, features and their effects of the utility model as follows.

[0027] The above is only a preferred embodiment of the utility model, and does not impose any form of limitation on the utility model. Although the utility model has been disclosed above with the preferred embodiment, it is not intended to limit the utility model. Any person skilled in the art can make some changes or modifications to it as equivalent embodiments with equivalent changes within the scope of the technical solution of the utility model. However, as long as it does not depart from the content of the technical solution of the utility model, any brief modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model still fall within the scope of the technical solution of the utility model.

Claims

1. A composite insulated zinc oxide single-branch lightning arrester, comprising a lightning arrester body (1), characterized in that: The lower end of the outer surface of the arrester body (1) is fixedly connected to a fixed base (2), the lower end of the outer surface of the arrester body (1) is sleeved with a grounding wire (3), the upper surface of the fixed base (2) is fixedly connected to a protective device (4), the lower surface of the fixed base (2) is provided with an auxiliary fixing device (5), the protective device (4) comprises a rectangular shell (41), and the upper surface of the rectangular shell (41) is provided with a circular hole (42).

2. A composite insulated zinc oxide single branch arrester according to claim 1, characterized in that: The inner wall of the rectangular shell (41) is provided with a rectangular cavity (43), one side of the inner wall of the rectangular cavity (43) is provided with a threading hole (44), and the inner wall surface area and shape of the threading hole (44) are larger than the outer surface area and shape of the grounding wire (3).

3. A composite insulated zinc oxide single branch arrester according to claim 2, characterized in that: A rectangular frame (45) is fixedly connected to the left and right sides of the rectangular cavity (43) on the outer surface of the rectangular shell (41), and a first spring (46) is fixedly connected to the bottom of the inner wall of the rectangular frame (45). A cover plate (47) is fixedly connected to the upper end of the outer surface of the first spring (46), and a limiting block (48) is fixedly connected to one side of the outer surface of the cover plate (47).

4. A composite insulated zinc oxide single branch arrester according to claim 3, characterized in that: Two connecting blocks (49) are fixedly connected to one side of the outer surface of the rectangular shell (41); a sliding rod (410) is fixedly connected to the bottom of the inner wall of the connecting block (49); a second spring (411) is sleeved on the outer surface of the sliding rod (410); a concave rod (412) is fixedly connected to one side of the outer surface of the second spring (411); and the concave rod (412) is slidably sleeved on the sliding rod (410).

5. A composite insulated zinc oxide single branch arrester according to claim 4, characterized in that: The auxiliary fixing device (5) comprises an auxiliary plate (51), the auxiliary plate (51) being fixedly connected to the lower surface of the fixed base (2), a rectangular groove (52) being provided on one side of the outer surface of the auxiliary plate (51), a bidirectional threaded rod (53) being rotatably connected to the inner wall of the rectangular groove (52), and a rotating block (54) being fixedly connected to one side of the outer surface of the bidirectional threaded rod (53).

6. A composite insulated zinc oxide single branch arrester according to claim 5, characterized in that: The outer surface of the bidirectional threaded rod (53) is threadedly connected to a slider (55), and one side of the outer surface of the slider (55) is fixedly connected to a clamping plate (56).

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