Tower lightning protection grounding device

Abstract

The utility model discloses a tower lightning protection grounding device which comprises a connecting block, a grounding rod is fixedly installed on the outer surface of the lower end of the connecting block, a spiral metal conductor is fixedly installed on the outer wall of the grounding rod, a mounting hole is formed in the upper portion of the outer surface of one side of the connecting block, and a grounding down lead penetrates through the mounting hole. A limiting assembly is mounted in the connecting block and comprises a second limiting hole, a third limiting hole, a mounting cavity, a compression spring, a limiting block and a limiting pin. According to the lightning protection grounding device for the tower, the grounding downlead and the connecting block are limited through the limiting assembly, the stability after connection is improved, assembly and disassembly are facilitated, the contact area between the grounding body and soil is increased through the grounding rod, the spiral metal conductor and the spiral structure, and the grounding body is prevented from being damaged. And grounding resistance is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lightning protection and grounding technology for power poles and towers, specifically to a lightning protection and grounding device for power poles and towers. Background Technology

[0002] In power systems, the lightning protection grounding devices of power poles are an important component in ensuring the safe operation of transmission lines.

[0003] In existing technologies, traditional lightning protection grounding devices typically use simple vertical or horizontal grounding electrodes, which have limited contact area with the soil, resulting in high grounding resistance. This affects the rapid discharge of lightning current and increases the risk of lightning strike accidents.

[0004] In addition, existing grounding down conductors and grounding bodies are mostly connected by bolts. This connection structure is prone to loosening or even falling off due to vibration, corrosion or external force during long-term operation, which can lead to grounding failure and seriously threaten the stability and safety of the power system.

[0005] Therefore, we propose a lightning protection grounding device for towers. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this utility model provides a tower lightning protection grounding device. The spiral structure increases the contact area between the grounding electrode and the soil, reduces the grounding resistance, and makes the connection between the grounding down conductor and the grounding electrode more stable, which can effectively solve the problems in the background technology.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tower lightning protection grounding device includes a connecting block, a grounding rod is fixedly installed on the lower outer surface of the connecting block, a spiral metal conductor is fixedly installed on the outer wall of the grounding rod, an installation hole is opened on the upper part of one side of the outer surface of the connecting block, a grounding down conductor passes through the installation hole, a limiting component is installed in the connecting block, the limiting component includes a second limiting hole, a third limiting hole, an installation cavity, a compression spring, a limiting block and a limiting pin, the second limiting hole is opened in the middle of the upper outer surface of the connecting block, the third limiting hole is opened at the lower end of the installation hole, and a first limiting hole is opened at the lower end of the grounding down conductor.

[0010] Preferably, the connecting block, grounding rod, spiral metal conductor, and grounding lead are all made of conductive materials.

[0011] Preferably, the lower end of the grounding lead and the mounting hole are interference fit.

[0012] Preferably, the lower end of the second limiting hole is connected to the upper part of the mounting hole, the mounting cavity is opened inside the lower end of the connecting block, and the lower end of the third limiting hole is connected to the middle part of the upper end of the mounting cavity.

[0013] Preferably, the compression spring and the limiting block are both located in the mounting cavity. The compression spring is fixed between the bottom of the mounting cavity and the lower outer surface of the limiting block. The limiting pin is fixedly installed in the middle of the upper outer surface of the limiting block. The outer wall of the limiting pin is slidably connected to the second limiting hole and the third limiting hole. The outer wall of the limiting block is slidably connected to the mounting cavity. The lower outer surface of the limiting block is elastically connected to the bottom of the mounting cavity through the compression spring.

[0014] Preferably, the outer wall of the limiting pin is inserted into the first limiting hole.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a lightning protection grounding device for towers, which has the following beneficial effects:

[0017] 1. This tower lightning protection grounding device, through the setting of a limiting component, makes the connection between the grounding down conductor and the connecting block more secure. The limiting pin is locked into the first limiting hole of the grounding down conductor under the action of the compression spring, effectively preventing loosening or falling off and ensuring the reliability of long-term operation.

[0018] 2. This tower lightning protection grounding device features a spiral metal conductor fixedly installed on the outer wall of the grounding pole, which significantly increases the contact area between the grounding body and the soil, thereby significantly reducing the grounding resistance, improving the discharge capacity of lightning current, and enhancing the lightning protection effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a lightning protection grounding device for poles and towers according to this utility model.

[0020] Figure 2 This is a schematic diagram of the connecting block and the grounding rod in a lightning protection grounding device for towers according to this utility model.

[0021] Figure 3 This is a schematic diagram of the grounding down conductor in a lightning protection grounding device for towers according to this utility model.

[0022] Figure 4 This is a side cross-sectional view of the connecting block in a lightning protection grounding device for towers according to this utility model.

[0023] In the diagram: 1. Connecting block; 2. Grounding rod; 3. Spiral metal conductor; 4. Grounding lead-down wire; 5. Limiting component; 6. Mounting hole; 7. First limiting hole; 8. Second limiting hole; 9. Third limiting hole; 10. Mounting cavity; 11. Compression spring; 12. Limiting block; 13. Limiting pin. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] This embodiment is a lightning protection grounding device for power poles and towers.

[0026] like Figure 1-4 As shown, the device includes a connecting block 1, a grounding rod 2 fixedly installed on the lower outer surface of the connecting block 1, a spiral metal conductor 3 fixedly installed on the outer wall of the grounding rod 2, an installation hole 6 opened on the upper part of one side of the outer surface of the connecting block 1, a grounding lead 4 passing through the installation hole 6, a limiting component 5 installed in the connecting block 1, the limiting component 5 including a second limiting hole 8, a third limiting hole 9, an installation cavity 10, a compression spring 11, a limiting block 12 and a limiting pin 13, the second limiting hole 8 is opened in the middle of the upper outer surface of the connecting block 1, the third limiting hole 9 is opened at the lower end of the installation hole 6, and a first limiting hole 7 is opened at the lower end of the grounding lead 4.

[0027] The connecting block 1, grounding rod 2, spiral metal conductor 3, and grounding lead 4 are all made of conductive materials; the lower end of the grounding lead 4 is interference-fitted with the mounting hole 6; the lower end of the second limiting hole 8 is connected to the upper part of the mounting hole 6; the mounting cavity 10 is opened inside the lower end of the connecting block 1; the lower end of the third limiting hole 9 is connected to the middle part of the upper end of the mounting cavity 10; the compression spring 11 and the limiting block 12 are both located in the mounting cavity 10; the compression spring 11 is fixed between the bottom of the mounting cavity 10 and the lower outer surface of the limiting block 12; the limiting pin 13 is fixedly installed in the middle part of the upper outer surface of the limiting block 12; the outer wall of the limiting pin 13 is slidably connected to the second limiting hole 8 and the third limiting hole 9; the outer wall of the limiting block 12 is slidably connected to the mounting cavity 10; the lower outer surface of the limiting block 12 is elastically connected to the bottom of the mounting cavity 10 through the compression spring 11; the outer wall of the limiting pin 13 is inserted into the first limiting hole 7.

[0028] It should be noted that this utility model is a lightning protection grounding device for towers. When connecting the grounding down conductor 4 and the connecting block 1, the lower end of the grounding down conductor 4 is inserted into the mounting hole 6 with an interference fit. When one end of the grounding down conductor 4 is blocked by the limiting pin 13, the limiting pin 13 is pressed by a screwdriver or other structure. The limiting pin 13 descends along the second limiting hole 8 and the third limiting hole 9, so that the upper end of the limiting pin 13 enters the third limiting hole 9. The limiting pin 13 drives the limiting block 12 to compress the spring 1 in the mounting cavity 10. 1. Press down and then continue inserting the grounding down conductor 4, with the lower end of the grounding down conductor 4 passing through the mounting hole 6. When the first limiting hole 7 reaches the lower end of the first limiting hole 7, the reaction force of the compression spring 11 drives the limiting pin 13 to pass through the first limiting hole 7. The limiting pin 13 can improve the stability of the grounding down conductor 4 after installation and prevent it from loosening or falling off. The grounding rod 2 and the spiral metal conductor 3 are set up. The spiral structure increases the contact area between the grounding body and the soil and reduces the grounding resistance.

[0029] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A lightning protection grounding device for towers, comprising a connecting block (1), characterized in that: A grounding rod (2) is fixedly installed on the lower outer surface of the connecting block (1). A spiral metal conductor (3) is fixedly installed on the outer wall of the grounding rod (2). An installation hole (6) is opened on the upper part of one side of the outer surface of the connecting block (1). A grounding lead (4) passes through the installation hole (6). A limiting component (5) is installed in the connecting block (1). The limiting component (5) includes a second limiting hole (8), a third limiting hole (9), an installation cavity (10), a compression spring (11), a limiting block (12), and a limiting pin (13). The second limiting hole (8) is opened in the middle of the upper outer surface of the connecting block (1). The third limiting hole (9) is opened at the lower end of the installation hole (6). A first limiting hole (7) is opened at the lower end of the grounding lead (4).

2. The tower lightning protection grounding device according to claim 1, characterized in that: The connecting block (1), grounding rod (2), spiral metal conductor (3) and grounding lead (4) are all made of conductive materials.

3. The tower lightning protection grounding device according to claim 2, characterized in that: The lower end of the grounding lead (4) is interference-fitted with the mounting hole (6).

4. The tower lightning protection grounding device according to claim 3, characterized in that: The lower end of the second limiting hole (8) is connected to the upper part of the mounting hole (6), the mounting cavity (10) is opened inside the lower end of the connecting block (1), and the lower end of the third limiting hole (9) is connected to the middle part of the upper end of the mounting cavity (10).

5. A tower lightning protection grounding device according to claim 4, characterized in that: The compression spring (11) and the limiting block (12) are both located in the mounting cavity (10). The compression spring (11) is fixed between the bottom of the mounting cavity (10) and the lower outer surface of the limiting block (12). The limiting pin (13) is fixedly installed in the middle of the upper outer surface of the limiting block (12). The outer wall of the limiting pin (13) is slidably connected to the second limiting hole (8) and the third limiting hole (9). The outer wall of the limiting block (12) is slidably connected to the mounting cavity (10). The lower outer surface of the limiting block (12) is elastically connected to the bottom of the mounting cavity (10) through the compression spring (11).

6. A tower lightning protection grounding device according to claim 5, characterized in that: The outer wall of the limiting pin (13) is inserted into the first limiting hole (7).

Images