Novel zinc oxide lightning arrester

Abstract

The utility model discloses a novel zinc oxide lightning arrester, relates to the technical field of lightning arresters, and aims to solve the technical problems that the contact area between the lightning arrester and a power transmission line is reduced and lightning current cannot be effectively conducted due to the fact that the lightning arrester shakes at high altitude due to airflow. And a plurality of through holes are formed in the top of the mounting bracket. According to the lightning arrester, the arc-shaped clamping openings are formed in the clamping plates, the clamping grooves are clamped through the arc-shaped clamping openings, when the lightning arrester body is interfered by airflow, the lightning arrester body cannot shake due to the fact that the connecting rod at the bottom of the lightning arrester body is lengthened, and in the installation process, the lightning arrester body is pushed to enable the clamping grooves to move in the arc-shaped clamping openings, so that the lightning arrester body can be conveniently installed. Meanwhile, the connecting wire penetrates through the through hole, and the copper stranded wire is attached to the wire bunching plate and then is matched with the top of the lightning arrester body, so that the functions of water prevention, buffering of tensile force borne by the copper stranded wire and convenient installation can be achieved, and the stability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arresters, and more specifically, to a new type of zinc oxide lightning arrester. Background Art

[0002] The line type lightning arrester is a protection device designed specifically for 6 to 220 kV AC transmission and transformation lines, aiming to limit the lightning overvoltage on the line, improve the lightning withstand level of the line, and reduce the tripping rate caused by lightning strikes; this kind of lightning arrester is usually installed on the transmission tower and can effectively prevent the flashover accident of the insulator string.

[0003] At present, the line type lightning arrester is generally installed on the terminal post. The lightning arrester will sway in the air due to air flow, resulting in a reduction in the contact area between the lightning arrester and the transmission line due to the sway, and the lightning current cannot be effectively conducted, thus affecting the protection effect. In view of this, we propose a new type of zinc oxide lightning arrester. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a new type of zinc oxide lightning arrester to solve the technical problem that the current lightning arrester will sway in the air due to air flow, resulting in a reduction in the contact area between the lightning arrester and the transmission line, and the lightning current cannot be effectively conducted.

[0005] To solve the above technical problems, the present utility model provides the following technical solutions: a novel zinc oxide lightning arrester, including an installation bracket, wherein a plurality of through holes are opened at the top of the installation bracket, and a lightning arrester body is fixedly sleeved inside each through hole. A extension rod is fixedly connected to the bottom of the lightning arrester body. A plurality of clamping grooves are formed on the outer wall of the extension rod and are distributed in a linear array. A fixing unit is arranged at the bottom of the installation bracket, and the fixing unit is in movable contact with the outer wall of the lightning arrester body; a protection unit is arranged at the top of the lightning arrester body; the fixing unit includes a plurality of support frames, and every two support frames are fixedly connected to the bottom of the installation bracket and correspond to each through hole in position. Through grooves are respectively opened on both sides of each support frame. A first spring is fixedly connected to the inner wall of the top of each through groove. A clamping plate is movably connected to the opposite side of every two support frames through a first insertion rod. A first telescopic rod is movably connected to the inside of the support frame through a second insertion rod, and the output end of the first telescopic rod is fixedly connected to the clamping plate. A second spring is movably sleeved on the outer wall of the first telescopic rod, and both ends of the second spring are respectively fixedly connected between the second insertion rod and the clamping plate. In this utility model, by providing an arc-shaped clamping opening on the clamping plate to clamp the clamping groove, when the lightning arrester body is interfered by air flow, due to the extension rod at the bottom of the lightning arrester body being increased, it cannot shake. And during the installation process, by pushing the lightning arrester body, a plurality of clamping grooves move in the arc-shaped clamping opening, thereby realizing the function of quick installation. At the same time, the connecting wire passes through the through hole, and the copper stranded wire is attached to the wire bundling plate and then cooperates with the top of the lightning arrester body, which can achieve the functions of waterproofing, buffering the tension received by the copper stranded wire, and convenient installation, and is beneficial to improving the stability of the device.

[0006] Preferably, both ends of each first insertion rod are respectively movably sleeved inside the through groove through a bushing. An arc-shaped clamping opening is arranged on one side of the clamping plate, and a closed loop is formed by every two arc-shaped clamping openings, and the arc-shaped clamping opening is in movable contact with the clamping groove.

[0007] Preferably, the protection unit includes a plurality of first threaded rods, and each first threaded rod is respectively fixedly connected to the top of the lightning arrester body. A gasket is movably sleeved on the outer wall of the first threaded rod. In this utility model, by providing a gasket, during the installation process, only need to wind the connecting wire around the side surface of the gasket, insert one end of the connecting wire into the through hole, attach the copper stranded wire to the wire bundling plate, and fit it with the top of the lightning arrester body to fixedly connect the copper stranded wire. During this process, through the insulating layer on the outer wall of the connecting wire, rainwater can be prevented from entering, and during shaking, through the wound connecting wire, the acting force generated by shaking can be buffered, which is beneficial to improving the stability of the device.

[0008] Preferably, the outer wall of the first threaded rod is threadedly connected with a nut through a first thread, and the nut is in movable contact with the gasket.

[0009] Preferably, through holes are opened on the side surface of the gasket.

[0010] Preferably, a plurality of wire bundling plates are fixedly connected to the side surface of the gasket.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In this utility model, by providing an arc-shaped clamping opening on the clamping plate to clamp the card slot, when the lightning arrester body is interfered by air flow, due to the extension rod at the bottom of the lightning arrester body being lengthened, it cannot shake. And during the installation process, by pushing the lightning arrester body, several card slots move in the arc-shaped clamping opening, thus realizing the function of rapid installation. At the same time, the connecting wire passes through the through hole, and the copper stranded wire is attached to the wire bundling plate and then cooperates with the top of the lightning arrester body, which can achieve the functions of waterproofing, buffering the tensile force of the copper stranded wire, and convenient installation, which is beneficial to improving the stability of the device.

[0013] 2. In this utility model, by providing a gasket, during the installation process, only need to wind the connecting wire around the side surface of the gasket, insert one end of the connecting wire into the through hole, attach the copper stranded wire to the wire bundling plate, and fit it with the top of the lightning arrester body to fixedly connect the copper stranded wire. During this process, through the insulating layer on the outer wall of the connecting wire, rainwater can be prevented from entering, and during shaking, through the wound connecting wire, the acting force generated by shaking can be buffered, which is beneficial to improving the stability of the device. Description of the Drawings

[0014] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0015] Figure 2 is a three-dimensional partial structure diagram of the present utility model;

[0016] Figure 3 is a three-dimensional enlarged structure diagram of the fixing unit of the present utility model;

[0017] Figure 4 is a three-dimensional partial enlarged structure diagram of the protection unit of the present utility model to show the three-dimensional structure of the gasket;

[0018] Figure 5 is a cross-sectional structure diagram of the lightning arrester body of the present utility model.

[0019] Explanation of the reference numerals in the drawings: 1. Installation bracket; 101. Through hole; 2. Lightning arrester body; 201. Extension rod; 202. Card slot; 3. Fixing unit; 301. Support frame; 302. Through groove; 303. First spring; 304. Clamping plate; 304a. Bush; 304b. Arc-shaped clamping opening; 305. First telescopic rod; 306. Second spring; 4. Protection unit; 401. First threaded rod; 402. Gasket; 402a. Through hole; 402b. Wire bundling plate; 403. Nut. Detailed implementation mode

[0020] As Figures 1 to 5 shown, a novel zinc oxide lightning arrester involved in the utility model includes an installation bracket 1. A plurality of through holes 101 are opened at the top of the installation bracket 1. A lightning arrester body 2 is fixedly sleeved inside each through hole 101. A extension rod 201 is fixedly connected to the bottom of the lightning arrester body 2. It is worth noting that by setting the extension rod 201, by extending the length of the installation support rod at the bottom of the lightning arrester body 2, and then clamping the extension rod 201 at the bottom of the lightning arrester body 2 through the fixing unit 3, the shaking of the lightning arrester body 2 caused by the airflow can be effectively controlled. A plurality of clamping grooves 202 are formed on the outer wall of the extension rod 201 and the clamping grooves 202 are distributed in a linear array. It is worth noting that by setting the clamping grooves 202, during the installation process, by pushing the lightning arrester body 2, the lightning arrester body 2 moves downward. Since the clamping grooves 202 are in a special shape, as Figure 5 shown, therefore, the arc-shaped clamping mouth 304b can easily clamp the lightning arrester body 2, and a closed loop is formed by the two arc-shaped clamping mouths 304b, which can prevent the lightning arrester body 2 from moving out of the closed loop. Compared with the threaded installation, this installation method is more convenient and the effect is more obvious. A fixing unit 3 is arranged at the bottom of the installation bracket 1, and the fixing unit 3 is in movable contact with the outer wall of the lightning arrester body 2; a protection unit 4 is arranged at the top of the lightning arrester body 2; the fixing unit 3 includes a plurality of support frames 301. Every two support frames 301 are fixedly connected to the bottom of the installation bracket 1 and every two support frames 301 correspond to the position of each through hole 101. Through grooves 302 are respectively opened on both sides of each support frame 301. A first spring 303 is fixedly connected to the inner wall of the top of each through groove 302. A clamping plate 304 is movably connected to the opposite side of every two support frames 301 through a first insertion rod. A first telescopic rod 305 is movably connected to the inside of the support frame 301 through a second insertion rod, and the output end of the first telescopic rod 305 is movably connected to the clamping plate 304 through a third insertion rod. It is worth noting that the shortest length of the first telescopic rod 305 Figure 3 shown, a second spring 306 is movably sleeved on the outer wall of the first telescopic rod 305, and both ends of the second spring 306 are respectively fixedly connected between the second insertion rod and the clamping plate 304. In this utility model, by setting an arc-shaped clamping mouth 304b on the clamping plate 304, when the arc-shaped clamping mouth 304b clamps the clamping groove 202, when the lightning arrester body 2 is interfered by the airflow, since the connecting rod at the bottom of the lightning arrester body 2 is increased, it cannot shake, and during the installation process, by pushing the lightning arrester body 2, a plurality of clamping grooves 202 move in the arc-shaped clamping mouth 304b, thereby realizing the function of rapid installation. At the same time, the connecting wire passes through the through hole 402a, and the copper stranded wire is attached to the wire bundling plate 402b and then cooperates with the top of the lightning arrester body 2, which can realize the functions of waterproofing, buffering the tension received by the copper stranded wire, and convenient installation, which is beneficial to improving the stability of the device.

[0021] The cam 304 is a substantially parallelogram of the first and second cams 306, 307 and 308. The cam 304 is a substantially parallelogram of the first and second cams 306. The cam 304 is a substantially parallelogram of the first and second cams 308. The cam 304 is a substantially parallelogram of the first and second cams 308. Figure 5 Therefore, during the downward movement, it can move downward smoothly. When it needs to move upward, the bottom of the arc-shaped clamping opening 304b fits against the inner wall of the bottom of the slot 202, and the first telescopic rod 305 can limit the movement of the clamping plate 304 to fix it. During use, the lightning arrester body 2 is affected by the external airflow. By increasing the connection length of the lightning arrester body 2, shaking during use can be avoided to affect the normal use of the device.

[0022] In an embodiment of the present utility model, the protection unit 4 includes a plurality of first threaded rods 401. Each first threaded rod 401 is fixedly connected to the top of the lightning arrester body 2. A gasket 402 is movably sleeved on the outer wall of the first threaded rod 401. A nut 403 is movably connected to the outer wall of the first threaded rod 401 through a first thread and the nut 403 is in movable contact with the gasket 402. A through hole 402a is formed on the side surface of the gasket 402. A plurality of wire bundling plates 402b are fixedly connected to the side surface of the gasket 402. In this utility model, by providing the gasket 402, during the installation process, only need to wind the connecting wire around the side surface of the gasket 402, insert one end of the connecting wire into the through hole 402a, attach the copper stranded wire to the wire bundling plate 402b and fit it to the top of the lightning arrester body 2 to fixedly connect the copper stranded wire. During this process, through the insulating layer on the outer wall of the connecting wire, rainwater can be prevented from entering. And during shaking, through the wound connecting wire, the acting force generated by shaking can be buffered, which is beneficial to improving the stability of the device. When the lightning arrester body 2 is connected to other connecting wires, first wind the connecting wire around the gasket 402. At this time, the insulating layer is attached to the side surface of the gasket 402. Then pass one end of the connecting wire through the through hole 402a, attach the copper stranded wire to the opposite side of a plurality of wire bundling plates 402b, fixedly sleeve the installed gasket 402 on the top of the lightning arrester body 2, and then fixedly connect the nut 403 to the top of the lightning arrester body 2 through the first thread, and the nut 403 is in contact with the surface of the gasket 402 to fix it. During the use process, through the insulating layer on the side surface of the through hole 402a, rainwater can be prevented from entering the gasket 402. At the same time, during the shaking process, through the wound connecting wire, the acting force generated by shaking can be buffered, and loosening and other phenomena of the copper stranded wire inside the gasket 402 can be avoided.

[0023] Working principle: This embodiment provides a new type of zinc oxide lightning arrester. During installation, first push the lightning arrester body 2 to move it downward in the through hole 101. During the movement, the card slot 202 moves within the closed loop formed by the two arc-shaped clamping mouths 304b. During the movement, due to the special shape of the card slot 202, such as Figure 5, so during the downward movement, it can move downward smoothly. When it needs to move upward, the bottom of the arc-shaped clamping mouth 304b fits against the inner wall of the bottom of the card slot 202, and through the first telescopic rod 305, the movement of the clamping plate 304 can be restricted to make it fixed. During use, the lightning arrester body 2 is affected by external air flow. By increasing the length of the connection of the lightning arrester body 2, the shaking during use can be avoided, which affects the normal use of the device. At the same time, when the lightning arrester body 2 is connected to other connection wires, first wind the connection wire around the gasket 402. At this time, the insulating layer fits on the side surface of the gasket 402. Then pass one end of the connection wire through the through hole 402a, fit the copper stranded wire against the opposite side of several wire bundles 402b, and fixedly sleeved the installed gasket 402 on the top of the lightning arrester body 2. Then, the nut 403 is fixedly connected to the top of the lightning arrester body 2 through the first thread, and the nut 403 contacts the surface of the gasket 402 to make it fixed. During use, through the insulating layer on the side surface of the through hole 402a, rainwater can be prevented from entering the gasket 402. At the same time, during the shaking process, by winding the connection wire, the acting force generated by the shaking can be buffered, and the loosening of the copper stranded wire inside the gasket 402 can be avoided.

[0024] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A novel zinc oxide lightning arrester, characterized in that, It includes a mounting bracket (1). A number of through holes (101) are provided at the top of the mounting bracket (1). An arrester body (2) is fixedly sleeved inside each through hole (101). A extending rod (201) is fixedly connected to the bottom of the arrester body (2). A number of card slots (202) are provided on the outer wall of the extending rod (201), and the card slots (202) are distributed in a linear array. A fixing unit (3) is arranged at the bottom of the mounting bracket (1), and the fixing unit (3) is in movable contact with the outer wall of the arrester body (2); A protection unit (4) is arranged at the top of the arrester body (2); The fixing unit (3) includes a number of support frames (301). Every two support frames (301) are fixedly connected to the bottom of the mounting bracket (1), and every two support frames (301) correspond to the position of each through hole (101). Through slots (302) are respectively provided on both sides of each support frame (301). A first spring (303) is fixedly connected to the inner wall of the top of each through slot (302). A clamping plate (304) is movably connected to the opposite side of every two support frames (301) through a first insertion rod. A first telescopic rod (305) is movably connected to the inside of the support frame (301) through a second insertion rod, and the output end of the first telescopic rod (305) is movably connected to the clamping plate (304) through a third insertion rod. A second spring (306) is movably sleeved on the outer wall of the first telescopic rod (305), and both ends of the second spring (306) are respectively fixedly connected between the second insertion rod and the clamping plate (304).

2. A novel zinc oxide lightning arrester according to claim 1, characterized in that, Both ends of each first insertion rod are respectively movably sleeved inside the through slot (302) through a bushing (304a). An arc-shaped clamping opening (304b) is arranged on one side of the clamping plate (304). A closed loop is formed by every two arc-shaped clamping openings (304b), and the arc-shaped clamping opening (304b) is in movable contact with the card slot (202).

3. A novel zinc oxide lightning arrester according to claim 1, characterized in that, The protection unit (4) includes a number of first threaded rods (401). Each first threaded rod (401) is respectively fixedly connected to the top of the arrester body (2). A gasket (402) is movably sleeved on the outer wall of the first threaded rod (401).

4. A novel zinc oxide lightning arrester according to claim 3, characterized in that, A nut (403) is movably connected to the outer wall of the first threaded rod (401) through a first thread, and the nut (403) is in movable contact with the gasket (402).

5. A novel zinc oxide lightning arrester according to claim 4, characterized in that, A through hole (402a) is provided on the side surface of the gasket (402).

6. A novel zinc oxide lightning arrester according to claim 5, characterized in that, A number of wire bundling plates (402b) are fixedly connected to the side surface of the gasket (402).

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