Lightning protection device for power transmission line

Abstract

The utility model belongs to the technical field of power transmission lines, and particularly relates to a power transmission line lightning protection device which comprises a power transmission line lightning protection device body, a detachable lightning protection assembly is arranged at the top of the power transmission line lightning protection device body, and an installation assembly is installed at the bottom of the power transmission line lightning protection device body. The detachable lightning protection assembly comprises a lightning rod body, the bottom of the lightning rod body is fixedly connected with a mounting base, the side of the mounting base is fixedly connected with a fixing clamping block, the bottom of the fixing clamping block is connected with a fixing clip in a clamped mode, and the bottom of the fixing clip is elastically connected with a clip spring. And the outer wall of the clip spring is connected with a clip shell in a clamping manner, and the side of the lightning rod main body is electrically connected with a conductive cable. According to the utility model, the lightning protection device is convenient to disassemble, the difficulty of inspection and maintenance is reduced, and the position and angle of the lightning protection device are convenient to adjust.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission lines, in particular to a lightning protection device for power transmission lines. Background Art

[0002] Lightning is a common weather phenomenon in nature. It causes great harm to power transmission lines and can easily lead to equipment damage, power outages and other problems. Transmission lines use transformers to boost the voltage of the electric energy generated by the generator and then connect it to the transmission line through control equipment such as circuit breakers.

[0003] In Chinese Patent 202222556282.6, the utility model relates to a lightning protection device for a power transmission line, wherein fastening screws are threadedly penetrated at the four corners of the fixed base plate, a strip-shaped through groove is provided at the center, a metal conductive block is fixedly provided at the left end inside the strip-shaped through groove, a fastening block is slidably provided at the right end inside, an adjusting screw is transversely arranged in the middle of the right side of the fixed base plate, one end of the adjusting screw is located in the strip-shaped through groove and contacts with the fastening block, and the other end is located on the right side of the fixed base plate and is connected with a hexagonal screw head; the mounting plate is L-shaped as a whole, and there are two of them, which are symmetrically fixed at the two ends of the lower surface of the fixed base plate, the lightning rod is cylindrical as a whole, the top end of which is inverted cone shape, the bottom end passes through the fastening gap formed between the metal conductive block and the fastening block, is located below the fixed base plate, and is detachably connected with an insulating base; the grounding wire is fixedly arranged at the left end of the lower surface of the fixed base plate, and is connected with the metal conductive block; the utility model has the advantages of strong applicability and convenient installation and adjustment operation.

[0004] Existing lightning protection devices for power transmission lines usually use lightning rods, lightning strips, etc., but the devices need to be inspected regularly. Since the connection between the lightning protection device and the mounting base is stable, the lightning protection device is difficult to disassemble, and inspection and maintenance are difficult. At the same time, when installing the device, the position and angle of the lightning protection device need to be adjusted, otherwise it will affect the lightning protection effect of the device.

[0005] Therefore, in view of the above problems, a lightning protection device for a power transmission line is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art, the problems of the lightning protection device being difficult to disassemble and inspect and maintain are solved, and the problem of the position and angle adjustment of the lightning protection device is solved.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a power transmission line lightning protection device described in the utility model comprises a power transmission line lightning protection device body, a detachable lightning protection component is arranged on the top of the power transmission line lightning protection device body, and a mounting component is installed on the bottom of the power transmission line lightning protection device body; the detachable lightning protection component comprises a lightning rod body, a mounting base is fixedly connected to the bottom of the lightning rod body, a fixed clamp is fixedly connected to the side of the mounting base, and a fixed clamp is snap-connected to the bottom of the fixed clamp, a clamp spring is elastically connected to the bottom of the fixed clamp, and a clamp shell is snap-connected to the outer wall of the clamp spring, a conductive cable is electrically connected to the side of the lightning rod body, a cable limiting ring is snap-connected to the outer wall of the conductive cable, and a grounding device is electrically connected to the bottom of the conductive cable.

[0008] Preferably, the lightning rod body is made of aluminum alloy, and the lightning rod body forms a detachable structure with the power transmission line lightning protection device body through the mounting base.

[0009] Preferably, the lightning rod body forms an electrical structure through a conductive cable and a grounding device, and the conductive cable and a cable limiting ring form a snap-fit ​​structure.

[0010] Preferably, the fixing clip forms an elastic structure through a clip spring and a clip housing, and the fixing clip and a fixing block form a clamping structure.

[0011] Preferably, the mounting assembly comprises an upper arc-shaped fixed clamp block, one side of the upper arc-shaped fixed clamp block is snap-connected with a mounting screw, the inner wall of the upper arc-shaped fixed clamp block is fixedly connected with an insulating layer, and the other side of the upper arc-shaped fixed clamp block is movably connected with a clamp block rotating shaft, the bottom of the clamp block rotating shaft is fixedly connected with a lower arc-shaped fixed clamp block, and a screw hole is opened on the side of the lower arc-shaped fixed clamp block.

[0012] Preferably, the mounting screw forms a threaded detachable structure through the upper arc-shaped fixing clamp block and the screw hole, and the upper arc-shaped fixing clamp block forms a rotating structure with the lower arc-shaped fixing clamp block through the clamp block rotating shaft.

[0013] Preferably, the insulating layer is made of rubber, and the outer wall area of ​​the insulating layer is the same as the inner wall area of ​​the upper arc-shaped fixing clamp block.

[0014] The utility model is beneficial in that:

[0015] 1. The main body of the lightning rod is made of aluminum alloy, and the main body of the lightning rod forms a detachable structure through the installation base and the main body of the lightning protection device for the power transmission line. The main body of the lightning rod forms an electrical structure through the conductive cable and the grounding device, and the conductive cable and the cable limit ring form a clamping structure. The fixed clip forms an elastic structure through the clip spring and the clip shell, and the fixed clip and the fixed card block form a clamping structure, which is convenient for disassembly of the lightning protection device and is conducive to the inspection and maintenance of the lightning protection device by the staff;

[0016] 2. The mounting screws form a threaded detachable structure through the upper arc-shaped fixed clamp block and the screw hole, and the upper arc-shaped fixed clamp block forms a rotating structure with the lower arc-shaped fixed clamp block through the clamp block rotating shaft. The insulating layer is made of rubber material, and the outer wall area of ​​the insulating layer is the same as the inner wall area of ​​the upper arc-shaped fixed clamp block, which is convenient for adjusting the position and angle of the lightning protection device, and is beneficial to improving the lightning protection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall installation of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model as a whole viewed from the front;

[0020] Figure 3 This is a schematic diagram of the disassembly structure of the installation part of the detachable lightning protection component of the utility model;

[0021] Figure 4 It is a schematic diagram of the opening structure of the installation assembly of the utility model;

[0022] Figure 5 It is a schematic diagram of the closed structure of the material receiving assembly of the utility model.

[0023] In the figure: 1. main body of the transmission line lightning protection device; 2. detachable lightning protection component; 201. main body of the lightning rod; 202. mounting base; 203. fixing block; 204. fixing clip; 205. clip spring; 206. clip housing; 207. conductive cable; 208. cable limit ring; 209. grounding device; 3. mounting component; 301. upper arc-shaped fixing clamp block; 302. mounting screws; 303. insulating layer; 304. clamp block shaft; 305. lower arc-shaped fixing clamp block; 306. screw hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1 , Figure 2 As shown, a power transmission line lightning protection device comprises a power transmission line lightning protection device body 1, a detachable lightning protection component 2 is arranged on the top of the power transmission line lightning protection device body 1, and a mounting component 3 is installed on the bottom of the power transmission line lightning protection device body 1.

[0026] like Figure 2 , Figure 3 As shown, a lightning protection device for a power transmission line, a detachable lightning protection component 2, includes a lightning rod body 201, the bottom of the lightning rod body 201 is fixedly connected to a mounting base 202, and the side of the mounting base 202 is fixedly connected to a fixed clamping block 203, and the bottom of the fixed clamping block 203 is snap-connected to a fixed clamp 204, the bottom of the fixed clamp 204 is elastically connected to a clamp spring 205, and the outer wall of the clamp spring 205 is snap-connected to a clamp housing 206, the side of the lightning rod body 201 is electrically connected to a conductive cable 207, and the outer wall of the conductive cable 207 is snap-connected to a cable limiting ring 208, and the bottom of the conductive cable 207 is electrically connected to a grounding device 209, and the lightning rod body 201 is fixed by sliding downward. The clamp 204, at this time the clamp spring 205 is squeezed and contracted, and then the mounting base 202 is installed. When the mounting base 202 is completely located inside the main body 1 of the lightning protection device for power transmission lines, the fixing clamp 204 is released. Under the elastic action of the clamp spring 205, the fixing clamp 204 is stuck in the inside of the fixing block 203 to fix the mounting base 202. Then the conductive cable 207 is passed through the cable limit ring 208 and then connected to the grounding device 209. The lightning rod main body 201 is made of aluminum alloy. Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added. It has better conductivity, is easy to disassemble the lightning protection device, and is beneficial for staff to inspect and maintain the lightning protection device.

[0027] like Figure 4 , Figure 5As shown, a lightning protection device for a power transmission line, an installation component 3, includes an upper arc-shaped fixed clamp block 301, one side of the upper arc-shaped fixed clamp block 301 is clamped and connected with a mounting screw 302, and the inner wall of the upper arc-shaped fixed clamp block 301 is fixedly connected with an insulating layer 303, and the other side of the upper arc-shaped fixed clamp block 301 is movably connected with a clamp block shaft 304, the bottom of the clamp block shaft 304 is fixedly connected with a lower arc-shaped fixed clamp block 305, and the side of the lower arc-shaped fixed clamp block 305 is provided with a screw hole 306, and the lower arc-shaped fixed clamp block 305 is fixedly connected with a lower arc-shaped fixed clamp block 305. The clamp block 305 is placed on the top of the wire rack, and then the upper arc-shaped fixed clamp block 301 is rotated around the clamp block shaft 304 until the insulating layer 303 is tightly fitted with the outer wall of the wire rack, and then the mounting screws 302 are tightened to fix the device body to the outer wall of the wire rack. The insulating layer 303 is made of rubber. Rubber refers to a highly elastic polymer with reversible deformation, which can not only serve the purpose of insulation, but also ensure the stability of the device installation, facilitate the adjustment of the position and angle of the lightning protection device, and help improve the lightning protection effect of the device.

[0028] Working principle: First, place the lower arc-shaped fixed clamp block 305 on the top of the wire rack, then rotate the upper arc-shaped fixed clamp block 301 around the clamp block shaft 304 until the insulating layer 303 is tightly fitted with the outer wall of the wire rack, then tighten the mounting screws 302 to fix the device body to the outer wall of the wire rack. The insulating layer 303 is made of rubber. Rubber refers to a highly elastic polymer with reversible deformation, which can not only serve the purpose of insulation, but also ensure the stability of the device installation. Then, slide the fixing clip 204 downward, and the clip spring 205 is squeezed and contracted. Then install the mounting base 202. When the mounting base 202 is completely located inside the main body 1 of the lightning protection device for power transmission lines, loosen the fixing clip 204. Under the elastic action of the clip spring 205, the fixing clip 204 is clamped inside the fixing block 203 to fix the mounting base 202. Then, the conductive cable 207 is passed through the cable limiting ring 208 and then connected to the grounding device 209. The main body 201 of the lightning rod is made of aluminum alloy. Aluminum alloy is an alloy based on aluminum with a certain amount of other alloying elements added, and has better conductivity.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A lightning protection device for a power transmission line, characterized in that: The invention comprises a main body (1) of a power transmission line lightning protection device, wherein a detachable lightning protection component (2) is arranged on the top of the main body (1) of the power transmission line lightning protection device, and an installation component (3) is installed on the bottom of the main body (1) of the power transmission line lightning protection device; The detachable lightning protection assembly (2) comprises a lightning rod body (201), the bottom of the lightning rod body (201) is fixedly connected to a mounting base (202), the side of the mounting base (202) is fixedly connected to a fixed clamping block (203), the bottom of the fixed clamping block (203) is snap-connected to a fixed clamp (204), the bottom of the fixed clamp (204) is elastically connected to a clamp spring (205), and the outer wall of the clamp spring (205) is snap-connected to a clamp housing (206), the side of the lightning rod body (201) is electrically connected to a conductive cable (207), the outer wall of the conductive cable (207) is snap-connected to a cable limiting ring (208), and the bottom of the conductive cable (207) is electrically connected to a grounding device (209).

2. A power transmission line lightning protection device according to claim 1, characterized in that: The lightning rod body (201) is made of aluminum alloy, and the lightning rod body (201) forms a detachable structure with the power transmission line lightning protection device body (1) through the mounting base (202).

3. A lightning protection device for power transmission lines according to claim 1, characterized in that: The lightning rod body (201) forms an electrical structure through a conductive cable (207) and a grounding device (209), and the conductive cable (207) and a cable limiting ring (208) form a snap-fit ​​structure.

4. A lightning protection device for power transmission lines according to claim 1, characterized in that: The fixed clip (204) forms an elastic structure through a clip spring (205) and a clip housing (206), and the fixed clip (204) and the fixed clamp block (203) form a clamping structure.

5. A lightning protection device for power transmission lines according to claim 1, characterized in that: The mounting assembly (3) comprises an upper arc-shaped fixed clamp block (301), one side of the upper arc-shaped fixed clamp block (301) is snap-connected with a mounting screw (302), the inner wall of the upper arc-shaped fixed clamp block (301) is fixedly connected with an insulating layer (303), and the other side of the upper arc-shaped fixed clamp block (301) is movably connected with a clamp block rotating shaft (304), the bottom of the clamp block rotating shaft (304) is fixedly connected with a lower arc-shaped fixed clamp block (305), and a screw hole (306) is provided on the side of the lower arc-shaped fixed clamp block (305).

6. A lightning protection device for power transmission lines according to claim 5, characterized in that: The mounting screw (302) forms a threaded detachable structure through the upper arc-shaped fixed clamp block (301) and the screw hole (306), and the upper arc-shaped fixed clamp block (301) forms a rotating structure through the clamp block rotating shaft (304) and the lower arc-shaped fixed clamp block (305).

7. A lightning protection device for power transmission lines according to claim 5, characterized in that: The insulating layer (303) is made of rubber material, and the outer wall area of ​​the insulating layer (303) is the same as the inner wall area of ​​the upper arc-shaped fixed clamping block (301).

Images