Lightning protection structure for power transmission tower

Abstract

The utility model discloses a lightning protection structure for a power transmission tower, which comprises a lightning arrester and a limit structure, the bottom end of the lightning arrester is provided with a fixed seat, a damping structure is fixed between the fixed seat and the lightning arrester, the bottom end of the fixed seat is provided with a base, and the corner of the base is provided with the limit structure. The limiting structure comprises a rack, a threaded block, a locking block, a limiting column, a limiting block, an insulating block and a limiting groove. According to the utility model, through the arrangement of the limiting structure, the fixed seat is placed on the base, the limiting column sequentially penetrates through the base, the fixed seat, the insulating block and the locking block, then the locking block is rotated by 90 degrees to enable the limiting groove to be perpendicular to the limiting block, the threaded block on one side is rotated to drive the threaded block on the other side to rotate simultaneously through the rack, and the threaded block and the limiting column are locked in a threaded mode. And meanwhile, only the threaded block on one side needs to be rotated for disassembly, so that the lightning protection structure for the power transmission tower is convenient to disassemble, maintain and replace, the operation difficulty of workers is reduced, and practicability is enhanced.

Description

Technical Field

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

[0002] The design of lightning protection structure for transmission towers can effectively reduce the damage caused by lightning strikes on towers. Lightning conductors can lead lightning into the underground to prevent lightning from directly hitting towers or conductors, thereby protecting towers and transmission lines from lightning damage. Lightning strikes may cause instability in the power system, causing voltage drops or even equipment failures. Lightning protection structures can reduce this risk and ensure the stable operation of the power system, thereby maintaining normal power supply.

[0003] The conventional existing technical solutions have the following defects:

[0004] 1. The connection between the lightning protection structure and the transmission tower is usually a single bolt fixed connection. When repairing and replacing the lightning protection structure, the disassembly is more complicated. Because it is a high-altitude operation, the cumbersome operation increases the difficulty for the staff;

[0005] 2. The lightning protection structure is fixed at a high place on the transmission tower. When strong winds and heavy rains come, the lightning protection structure will be damaged or shifted due to insufficient stability, which will reduce its service life and affect its use effect. Utility Model Content

[0006] The utility model aims to provide a lightning protection structure for a power transmission iron tower, so as to solve the defect that the existing lightning protection structure for a power transmission iron tower is inconvenient to disassemble and install.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a lightning protection structure for a transmission tower, comprising a lightning arrester and a limiting structure, wherein a fixing seat is provided at the bottom end of the lightning arrester, and a shock absorbing structure is fixed between the fixing seat and the lightning arrester, a base is provided at the bottom end of the fixing seat, and a limiting structure is provided at the corner of the base; the limiting structure comprises a rack, a threaded block, a locking block, a limiting column, a limiting block, an insulating block and a limiting groove; the rack is fixed to both sides of the bottom end of the base, limiting columns are provided at both ends of the opposite side of the rack, and threaded blocks are installed at the bottom of the limiting columns, limiting blocks are fixed to the top of the limiting columns, insulating blocks are installed on the top of the limiting blocks, and locking blocks are provided on the top of the insulating blocks, and limiting grooves are provided on the top of the insulating blocks.

[0008] Preferably, the rack and the threaded block are meshed, the rack and the base form a sliding structure, and the threaded block and the limiting column are threadedly connected. Through the cooperation of the rack, the threaded block on one side can be twisted to drive the two to rotate at the same time, reducing the difficulty of operation.

[0009] Preferably, the limit blocks are provided in two groups, the limit posts penetrate the interior of the insulating block and the limit slot, and the limit posts respectively form a sliding structure with the fixing seat and the base. When the threaded block rotates, the limit blocks below the limit posts prevent the limit posts from rotating, thereby achieving their up and down displacement.

[0010] Preferably, the limit groove and the limit block form a locking structure, and the limit groove and the limit column form a rotating structure. When the threaded block rotates, the limit column continuously moves downward to lock and fix the limit block and the limit groove.

[0011] Preferably, the shock absorbing structure comprises an upper sliding seat, a lower sliding seat, a spring and a bolt, and the lower sliding seat is fixed to the top end of the fixed seat.

[0012] Preferably, the bottom end of the arrester on the top of the lower slide seat is fixed with an upper slide seat, the inner diameter of the lower slide seat is larger than the outer diameter of the upper slide seat, and a sliding structure is formed between the upper slide seat and the lower slide seat. Through the cooperation between the upper slide seat and the lower slide seat, misalignment between the arrester and the fixed seat is avoided.

[0013] Preferably, springs are fixed inside the lower sliding seat, and bolts are fixed on the tops of the springs. The shock absorbing structure is fixed to the fixing seat by bolts, and the springs play a role of shock absorption and buffering.

[0014] The utility model provides a lightning protection structure for a power transmission tower, which has the advantages that: by setting a limited position structure, after the base and the power transmission tower are fixed, the fixing seat is placed on the base, the limiting column passes through the base, the fixing seat, the insulating block and the locking block in sequence, and then the locking block is rotated 90 degrees to make the limiting groove and the limiting block perpendicular, and the threaded block on one side is driven by the rack to rotate the threaded block on the other side at the same time, and the thread is locked with the limiting column, and at the same time, if disassembly is required, only one side of the threaded block needs to be rotated to disassemble the two at the same time, and the operation is simplified, so that the lightning protection structure for the power transmission tower is easy to disassemble, repair and replace, and the operation difficulty of workers is reduced, and the practicality is enhanced;

[0015] By setting up a shock-absorbing structure, the lightning protection structure is set on the top of the transmission tower. When there is a storm, the lightning protection structure will shake violently due to its high altitude. A spring is fixed underneath it. When one side is under pressure, the upper slide seat is squeezed downward, and the spring between the upper slide seat and the lower slide seat acts as a buffer, thereby enhancing the stability of the lightning protection structure of the transmission tower and avoiding displacement or damage due to strong winds. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model from a top view;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model when viewed from above;

[0018] Figure 3 It is a three-dimensional schematic diagram of the fixed seat and the base of the utility model in a disassembled state, viewed from above;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixed seat and the base of the utility model in an exploded state when viewed from above;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the shock absorbing structure of the utility model.

[0021] In the figure: 1. lightning arrester; 2. limiting structure; 201. rack; 202. threaded block; 203. locking block; 204. limiting column; 205. limiting block; 206. insulating block; 207. limiting groove; 3. fixing seat; 4. shock absorbing structure; 401. upper sliding seat; 402. lower sliding seat; 403. spring; 404. bolt; 5. base. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-Figure 5 The utility model provides a lightning protection structure for a transmission tower, comprising an arrester 1 and a limiting structure 2, a fixing seat 3 is arranged at the bottom end of the arrester 1, and a shock absorbing structure 4 is fixed between the fixing seat 3 and the arrester 1, a base 5 is arranged at the bottom end of the fixing seat 3, the shock absorbing structure 4 comprises an upper slide 401, a lower slide 402, a spring 403 and a bolt 404, the lower slide 402 is fixed to the top of the fixing seat 3, the lower end of the arrester 1 at the top of the lower slide 402 is fixed with an upper slide 401, the inner diameter of the lower slide 402 is larger than the outer diameter of the upper slide 401, and a sliding structure is formed between the upper slide 401 and the lower slide 402, the inner part of the lower slide 402 is fixed with a spring 403, and the top of the spring 403 is fixed with a bolt 404;

[0024] See attached Figure 1 and Figure 5When the device is used, the lightning protection structure is arranged on the top of the transmission tower. When there is a storm, the lightning protection structure will shake violently due to the height. When one side is under pressure, the other side is under tension. The spring 403 between the upper slide seat 401 and the lower slide seat 402 plays a buffering role, preventing the lightning protection structure from being offset or damaged in the case of strong winds. In addition, with the cooperation between the upper slide seat 401 and the lower slide seat 402, the misalignment phenomenon between the arrester 1 and the fixed seat 3 is avoided.

[0025] A limiting structure 2 is provided at the corner of the base 5; the limiting structure 2 includes a rack 201, a threaded block 202, a locking block 203, a limiting column 204, a limiting block 205, an insulating block 206 and a limiting groove 207; the rack 201 is fixed to both sides of the bottom end of the base 5, and limiting columns 204 are provided at both ends of the opposite side of the rack 201, and the bottom of the limiting column 204 is installed with a threaded block 202, the top of the limiting column 204 is fixed with a limiting block 205, the top of the limiting block 205 is installed with an insulating block 206, and the top of the insulating block 206 is provided with a locking The block 203 and the insulating block 206 are provided with a limiting groove 207 on their tops, the rack 201 and the threaded block 202 are meshed with each other, a sliding structure is formed between the rack 201 and the base 5, the threaded block 202 and the limiting column 204 are threadedly connected, two groups of limiting blocks 205 are provided, the limiting column 204 runs through the insulating block 206 and the limiting groove 207, and the limiting column 204 respectively forms a sliding structure with the fixing seat 3 and the base 5, a card and structure is formed between the limiting groove 207 and the limiting block 205, and a rotating structure is formed between the limiting groove 207 and the limiting column 204;

[0026] Refer to the attached Figure 2 , Figure 3 and Figure 4 When the device is used, after the base 5 is fixed to the transmission tower, the fixing seat 3 is placed on the base 5, and the limiting column 204 passes through the base 5, the fixing seat 3, the insulating block 206 and the locking block 203 in sequence, and then the locking block 203 is rotated 90° to make the limiting groove 207 perpendicular to the limiting block 205, and the threaded block 202 on one side is rotated to drive the threaded block 202 on the other side to rotate at the same time through the rack 201, and the thread is locked with the limiting column 204. The rotation of the threaded block 202 drives the limiting column 204 to move downward continuously, so that the limiting block 205 and the limiting groove 207 are stuck and fixed. At the same time, if disassembly is required, only one side of the threaded block 202 needs to be rotated to disassemble the two at the same time, which reduces the difficulty of operation for workers and enhances practicality.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lightning protection structure for a power transmission tower, comprising a lightning arrester (1) and a limiting structure (2); Features: A fixing seat (3) is provided at the bottom end of the arrester (1), and a shock absorbing structure (4) is fixed between the fixing seat (3) and the arrester (1); a base (5) is provided at the bottom end of the fixing seat (3), and a limiting structure (2) is provided at the corner of the base (5); The limiting structure (2) comprises a rack (201), a threaded block (202), a locking block (203), a limiting column (204), a limiting block (205), an insulating block (206) and a limiting groove (207); The rack (201) is fixed to two sides of the bottom end of the base (5); two ends of the opposite side of the rack (201) are provided with limiting columns (204); the bottom of the limiting columns (204) is provided with a threaded block (202); the top of the limiting columns (204) is provided with a limiting block (205); the top of the limiting blocks (205) is provided with an insulating block (206); the top of the insulating blocks (206) is provided with a locking block (203); and the top of the insulating blocks (206) is provided with a limiting groove (207).

2. A lightning protection structure for a power transmission tower according to claim 1, characterized in that: The rack (201) and the threaded block (202) are meshed with each other, a sliding structure is formed between the rack (201) and the base (5), and the threaded block (202) and the limiting column (204) are threadedly connected.

3. The lightning protection structure for a power transmission tower according to claim 1, characterized in that: The limiting blocks (205) are provided in two groups, the limiting columns (204) penetrate the interior of the insulating block (206) and the limiting groove (207), and the limiting columns (204) respectively form sliding structures with the fixing seat (3) and the base (5).

4. The lightning protection structure for a power transmission tower according to claim 1, characterized in that: A locking structure is formed between the limiting groove (207) and the limiting block (205), and a rotating structure is formed between the limiting groove (207) and the limiting column (204).

5. The lightning protection structure for a power transmission tower according to claim 1, characterized in that: The shock absorbing structure (4) comprises an upper sliding seat (401), a lower sliding seat (402), a spring (403) and a bolt (404); the lower sliding seat (402) is fixed to the top end of the fixed seat (3).

6. A lightning protection structure for a power transmission tower according to claim 5, characterized in that: An upper slide seat (401) is fixed to the bottom end of the arrester (1) on the top of the lower slide seat (402), the inner diameter of the lower slide seat (402) is larger than the outer diameter of the upper slide seat (401), and a sliding structure is formed between the upper slide seat (401) and the lower slide seat (402).

7. A lightning protection structure for a power transmission tower according to claim 6, characterized in that: A spring (403) is fixed inside the lower sliding seat (402), and a bolt (404) is fixed at the top of the spring (403).

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