Lightning protection structure of power transmission and transformation line

Abstract

The utility model relates to the technical field of lightning protection of power transmission and transformation lines, in particular to a lightning protection structure of a power transmission and transformation line, which comprises a lightning rod and a fixing frame fixed on an electric iron tower, one side of the fixing frame is fixedly connected with a transverse support plate, and the transverse support plate is slidably connected with a telescopic support plate. A lightning rod fixing base is fixedly installed at one end of the telescopic carrying plate, a lightning rod is fixedly installed on the lightning rod fixing base, a transverse sliding groove is formed in the top of the transverse carrying plate, a protruding plate is fixedly connected to the top of the telescopic carrying plate and slidably connected with the transverse sliding groove, and a connecting plate is fixedly connected to the top of the fixing frame. According to the utility model, the telescopic support plate and the lightning rod are driven to move through the telescoping of the electric telescopic rod, the position of the lightning rod is convenient to adjust, the arrangement and movement of the lightning rod do not depend on a power transmission and transformation line, no burden is caused to the power transmission and transformation line, and the installation of the lightning rod is safer.

Description

Technical Field

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

[0002] The transmission line is realized by using a transformer to step up the voltage of the electric energy generated by the generator, and then connecting it to the transmission line through control equipment such as circuit breakers. In order to ensure the safety of the transmission and transformation lines, lightning protection is required for the transmission and transformation lines.

[0003] In the prior art, for example, the lightning protection structure for power transmission and transformation lines proposed in patent application number “CN202320583546.9” records that “a lightning rod is fixedly installed on the upper surface of the cross bar, the lightning rod is connected to the fixed rod by a conductive wire, and support rods are evenly processed on the lower surface of the cross bar” and “it moves on the surface of the transmission line to facilitate mobile protection of the transmission line”.

[0004] However, in the prior art, the transmission line is protected by the movement of the lightning rod. However, when the lightning rod is moving, it needs to rely on the transmission line for bearing, which will cause additional load on the transmission line. Moreover, when installing the lightning arrester, the equipment where the lightning arrester is located needs to be installed on the transmission line, which is prone to safety hazards. Utility Model Content

[0005] The purpose of the utility model is to provide a lightning protection structure for a power transmission and transformation line to solve the problems raised in the above-mentioned background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A lightning protection structure for a power transmission and transformation line comprises a lightning rod and a fixing frame fixed on an electric power tower, one side of the fixing frame is fixedly connected to a transverse carrier plate, a telescopic carrier plate is slidably connected to the transverse carrier plate, one end of the telescopic carrier plate is fixedly mounted with a lightning rod fixing seat, and the lightning rod is fixedly mounted on the lightning rod fixing seat of the avoider.

[0008] A transverse sliding groove is provided on the top of the transverse carrier plate, a raised plate is fixedly connected to the top of the telescopic carrier plate, the raised plate and the transverse sliding groove are slidably connected, a connecting plate is fixedly connected to the top of the fixed frame, an electric telescopic rod is rotatably connected to the bottom of the connecting plate, and one end of the electric telescopic rod is rotatably connected to the top of the raised plate.

[0009] Preferably, two obliquely arranged supporting links are fixedly connected to the bottom of the connecting plate, one end of the supporting links is fixedly connected to the top of the transverse carrier plate, and the two supporting links are respectively arranged on both sides of the raised plate.

[0010] Preferably, the lightning rod is connected with a connecting wire, the bottom of the lightning rod fixing seat is fixedly connected with a guide tube, both ends of the guide tube are fixedly connected with rubber gaskets, and one end of the connecting wire passes through the guide tube and extends to the outside of the guide tube.

[0011] Preferably, a connecting shaft and a three-end fixing plate are fixedly connected to the bottom of the transverse carrier plate, one end of the connecting shaft is rotatably connected to a first guide wheel, and two second guide wheels are rotatably connected to the three-end fixing plate.

[0012] Preferably, a vertical slide groove is provided on the fixed frame, a guide shaft is fixedly connected in the vertical slide groove, a connecting block is slidably connected to the guide shaft, a U-shaped tube is fixedly connected to the bottom of the connecting block, one end of the connecting wire passes through the U-shaped tube and is fixedly connected to the connecting component.

[0013] Preferably, a lifting cylinder is fixedly installed on one side of the fixed frame, a movable block is fixedly connected to the top of the lifting cylinder, a spring is fixedly connected to the top of the movable block, the top of the spring is fixedly connected to the connecting block, and the spring is sleeved on the guide shaft.

[0014] Beneficial effects of the utility model:

[0015] The utility model utilizes the extension and retraction of the electric telescopic rod to drive the telescopic carrier plate and the lightning rod to move, which is convenient for adjusting the position of the lightning rod. The layout and movement of the lightning rod do not need to rely on the power transmission and transformation lines, will not cause a burden on the power transmission and transformation lines, and makes the installation of the lightning rod safer. At the same time, when the lightning rod moves, the extension and retraction of the lifting cylinder is utilized to drive the connecting wire to move, so that the connecting wire used for grounding the lightning rod will not become loose, and it is avoided that the loose connecting wire is blown by the wind and comes into contact with the power transmission and transformation lines to cause safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the bottom of the middle horizontal carrier plate;

[0019] Figure 3 This utility model Figure 2 A schematic diagram of the structure of the rear view of the middle three-end fixing plate;

[0020] Figure 4 This utility model Figure 1 Side view of the center bracket.

[0021] The reference numerals in the figures are as follows:

[0022] 1. Fixed frame, 2. Lightning rod, 3. Horizontal carrier plate, 4. Telescopic carrier plate, 5. Lightning rod fixing seat, 6. Horizontal slide groove, 7. Raised plate, 8. Connecting plate, 9. Electric telescopic rod, 10. Support connecting rod, 11. Connecting wire, 12. Guide tube, 13. Rubber gasket, 14. Connecting shaft, 15. Three-end fixed plate, 16. First guide wheel, 17. Second guide wheel, 18. Vertical slide groove, 19. Guide shaft, 20. Connecting block, 21. U-shaped tube, 22. Connecting parts, 23. Lifting cylinder, 24. Movable block, 25. Spring. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] A lightning protection structure for a power transmission and transformation line comprises a lightning rod 2 and a fixing frame 1 fixed on an electric power tower, wherein a transverse carrier plate 3 is fixedly connected to one side of the fixing frame 1, a telescopic carrier plate 4 is slidably connected to the transverse carrier plate 3, a lightning rod fixing seat 5 is fixedly installed at one end of the telescopic carrier plate 4, and the lightning rod 2 is fixedly installed on the lightning rod fixing seat 5 of the avoider.

[0025] A transverse slide groove 6 is provided on the top of the transverse carrier plate 3, a raised plate 7 is fixedly connected to the top of the telescopic carrier plate 4, the raised plate 7 and the transverse slide groove 6 are slidably connected, a connecting plate 8 is fixedly connected to the top of the fixed frame 1, an electric telescopic rod 9 is rotatably connected to the bottom of the connecting plate 8, and one end of the electric telescopic rod 9 is rotatably connected to the top of the raised plate 7.

[0026] like Figure 1 There is an opening on the fixing frame 1, which can facilitate the fixing frame 1 to be fixed on the power tower. There is a cavity inside the transverse carrier plate 3, which can be slidably connected with the telescopic carrier plate 4. The transverse carrier plate 3 and the telescopic carrier plate 4 are both horizontally arranged.

[0027] The bottom of the connecting plate 8 is fixedly connected to two inclined supporting links 10 , one end of the supporting links 10 is fixedly connected to the top of the transverse carrier plate 3 , and the two supporting links 10 are respectively arranged on both sides of the raised plate 7 .

[0028] like Figure 1 and Figure 2 Through the two supporting links 10, auxiliary support can be provided for the transverse carrier plate 3 to improve the stability of the transverse carrier plate 3.

[0029] The lightning rod 2 is connected with a connecting wire 11 , the bottom of the lightning rod fixing base 5 is fixedly connected with a guide tube 12 , both ends of the guide tube 12 are fixedly connected with rubber washers 13 , and one end of the connecting wire 11 passes through the guide tube 12 and extends to the outside of the guide tube 12 .

[0030] like Figure 2 The rubber gasket 13 has an opening so that the connecting wire 11 can pass through the guide tube 12 and the rubber gasket 13.

[0031] A connecting shaft 14 and a three-end fixing plate 15 are fixedly connected to the bottom of the transverse carrier plate 3 . A first guide wheel 16 is rotatably connected to one end of the connecting shaft 14 . Two second guide wheels 17 are rotatably connected to the three-end fixing plate 15 .

[0032] like Figure 2 and Figure 3 The connecting wire 11 passes over the first guide wheel 16 and the second guide wheel 17 , and the first guide wheel 16 and the second guide wheel 17 can provide guidance for the movement of the connecting wire 11 .

[0033] The fixing frame 1 is provided with a vertical slide groove 18, a guide shaft 19 is fixedly connected in the vertical slide groove 18, a connecting block 20 is slidably connected to the guide shaft 19, a U-shaped tube 21 is fixedly connected to the bottom of the connecting block 20, one end of the connecting wire 11 passes through the U-shaped tube 21 and is fixedly connected to a connecting component 22.

[0034] like Figure 2 and Figure 3 The U-shaped tube 21 can be used to change the movement direction of the connecting wire 11, the guide shaft 19 passes through the connecting block 20, and the connecting block 20 can move up and down on the guide shaft 19. One end of the connecting wire 11 is connected to the ground of the power tower through the connecting component 22 to achieve grounding of the lightning rod 2.

[0035] A lifting cylinder 23 is fixedly installed on one side of the fixed frame 1, and a movable block 24 is fixedly connected to the top of the lifting cylinder 23. A spring 25 is fixedly connected to the top of the movable block 24. The top of the spring 25 is fixedly connected to the connecting block 20, and the spring 25 is sleeved on the guide shaft 19.

[0036] like Figure 1 The spring 25 is used to connect the connecting block 20 and the movable block 24. When the connecting wire 11 drives the connecting block 20 to move, an elastic buffer is formed between the connecting block 20 and the movable block 24 to prevent the connecting wire 11 from being excessively pulled.

[0037] The working principle of a lightning protection structure for power transmission and transformation lines provided by the utility model is as follows:

[0038] When the electric telescopic rod 9 is extended or retracted, the telescopic carrier plate 4 can be pushed or pulled to move in different directions on the transverse carrier plate 3. The telescopic carrier plate 4 drives the lightning rod 2 to move together through the lightning rod fixing seat 5 to adjust the position of the lightning rod 2.

[0039] When the electric telescopic rod 9 extends and pushes the telescopic carrier plate 4, the lightning rod 2 moves away from the fixed frame 1, and the lifting cylinder 23 also contracts accordingly to drive the movable block 24 and the connecting block 20 to move downward, and the U-shaped tube 21 drives the connecting wire 11 to move downward, so that when the lightning rod 2 moves, one end of the connecting wire 11 can maintain the connection with the lightning rod 2;

[0040] On the contrary, when the electric telescopic rod 9 contracts and pulls the telescopic carrier plate 4, the lightning rod 2 moves toward the fixed frame 1. At this time, the lifting cylinder 23 extends accordingly to drive the movable block 24 and the connecting block 20 to move upward, and the U-shaped tube 21 drives the connecting wire 11 to move upward, so that the connecting wire 11 is in a stretched state and will not become loose.

[0041] Compared with the related art, the lightning protection structure of the power transmission and transformation line provided by the utility model has the following advantages:

[0042] Beneficial effects:

[0043] The utility model utilizes the extension and retraction of the electric telescopic rod 9 to drive the telescopic carrier plate 4 and the lightning rod 2 to move, which is convenient for adjusting the position of the lightning rod 2. The layout and movement of the lightning rod 2 do not need to rely on the power transmission and transformation line, will not cause a burden on the power transmission and transformation line, and makes the installation of the lightning rod 2 safer. At the same time, when the lightning rod 2 moves, the extension and retraction of the lifting cylinder 23 is utilized to drive the connecting wire 11 to move, so that the connecting wire 11 used for grounding the lightning rod 2 will not become loose, and it is avoided that the connecting wire 11 is loose and blown by the wind and contacts with the power transmission and transformation line to cause safety hazards.

[0044] 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 structure for a power transmission and transformation line, comprising a lightning rod (2) and a fixing frame (1) fixed on a power tower, characterized in that: A transverse carrier plate (3) is fixedly connected to one side of the fixing frame (1), a telescopic carrier plate (4) is slidably connected to the transverse carrier plate (3), a lightning rod fixing seat (5) is fixedly installed on one end of the telescopic carrier plate (4), and the lightning rod (2) is fixedly installed on the lightning rod fixing seat (5) of the arrester; The top of the transverse carrier plate (3) is provided with a transverse sliding groove (6); the top of the telescopic carrier plate (4) is fixedly connected with a raised plate (7); the raised plate (7) and the transverse sliding groove (6) are slidably connected; the top of the fixed frame (1) is fixedly connected with a connecting plate (8); the bottom of the connecting plate (8) is rotatably connected with an electric telescopic rod (9); one end of the electric telescopic rod (9) is rotatably connected to the top of the raised plate (7).

2. A lightning protection structure for power transmission and transformation lines according to claim 1, characterized in that: The bottom of the connecting plate (8) is fixedly connected to two inclined supporting rods (10), one end of the supporting rod (10) is fixedly connected to the top of the transverse carrier plate (3), and the two supporting rods (10) are respectively arranged on both sides of the raised plate (7).

3. A lightning protection structure for power transmission and transformation lines according to claim 1, characterized in that: The lightning rod (2) is connected to a connecting wire (11), the bottom of the lightning rod fixing seat (5) is fixedly connected to a guide tube (12), both ends of the guide tube (12) are fixedly connected to rubber gaskets (13), and one end of the connecting wire (11) passes through the guide tube (12) and extends to the outside of the guide tube (12).

4. A lightning protection structure for power transmission and transformation lines according to claim 3, characterized in that: The bottom of the transverse carrier plate (3) is fixedly connected to a connecting shaft (14) and a three-end fixing plate (15); one end of the connecting shaft (14) is rotatably connected to a first guide wheel (16); and the three-end fixing plate (15) is rotatably connected to two second guide wheels (17).

5. A lightning protection structure for power transmission and transformation lines according to claim 4, characterized in that: The fixing frame (1) is provided with a vertical slide groove (18), a guide shaft (19) is fixedly connected in the vertical slide groove (18), a connecting block (20) is slidably connected to the guide shaft (19), a U-shaped tube (21) is fixedly connected to the bottom of the connecting block (20), and one end of the connecting wire (11) passes through the U-shaped tube (21) and is fixedly connected to a connecting component (22).

6. A lightning protection structure for power transmission and transformation lines according to claim 5, characterized in that: A lifting cylinder (23) is fixedly mounted on one side of the fixed frame (1); a movable block (24) is fixedly connected to the top of the lifting cylinder (23); a spring (25) is fixedly connected to the top of the movable block (24); the top of the spring (25) is fixedly connected to the connecting block (20); and the spring (25) is sleeved on the guide shaft (19).

Images