Lightning protection device for power transmission line

Abstract

The utility model discloses a lightning protection device for a power transmission line, and relates to the technical field of line lightning arresters. The device comprises an L-shaped plate, one side of the bottom end of the L-shaped plate is fixedly connected with a connecting plate, and one end, far away from the L-shaped plate, of the connecting plate is fixedly connected with a fixed cylinder; through the cooperation of the insertion rod, the spring, the insertion hole and the clamping plate, when the lightning arrester moves downwards until the insertion rod is in contact with the fixed cylinder, the insertion rod is pushed to move towards the inner side and the spring is compressed, and when the insertion rod moves to the position corresponding to the insertion hole, the insertion rod is pushed to move towards one side of the insertion hole by utilizing the elastic force of the spring, so that the lightning arrester is fixed. When the lightning arrester needs to be disassembled, the lightning arrester can be disassembled by pressing the insertion rod inwards at the same time, enabling the insertion rod to be separated from the interior of the insertion hole and releasing the limitation on the vertical movement of the lightning arrester, the installation and disassembly operation is convenient and fast, and the lightning arrester is convenient to disassemble and assemble. And the working efficiency is further improved.

Description

Technical Field

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

[0002] Line lightning arresters are designed to limit line lightning overvoltages, improve line lightning resistance, and reduce the system tripping rate caused by lightning faults. They are a new type of lightning arrester that is suspended and installed on transmission towers and is used for lightning protection of transmission lines.

[0003] However, traditional lightning arresters are fixed to transmission towers by bolts, and professional tools are required for installation and removal, which makes operation inconvenient. In addition, lightning arresters need to be cleaned regularly, and the traditional cleaning method is that workers climb up to the transmission towers to perform high-altitude cleaning, which has poor safety. In response to the above problems, the inventors proposed a transmission line lightning protection device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the lightning arrester is fixed to the transmission tower by bolts, and the installation and removal operations are inconvenient; the purpose of the utility model is to provide a transmission line lightning protection device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a lightning protection device for a power transmission line, comprising an L-shaped plate, a connecting plate fixedly connected to one side of the bottom end of the L-shaped plate, a fixing tube fixedly connected to the end of the connecting plate away from the L-shaped plate, a lightning arrester movably inserted inside the fixing tube, a symmetrically distributed plate groove is opened inside the bottom end of the lightning arrester, a clamping plate is slidably clamped inside the plate groove, a plug rod is fixedly connected to one side of the clamping plate, and the end of the plug rod away from the clamping plate extends to the outside of the fixing tube, a mounting plate is fixedly connected to the side of the bottom end of the L-shaped plate away from the connecting plate, positioning holes are opened at the four corners of the top end of the mounting plate, and a spring is arranged between one side of the clamping plate and one side of the inner wall of the plate groove.

[0006] Preferably, the top end of the L-shaped plate is rotatably connected to a rotating tube, the bottom end of the rotating tube extends to the bottom end of the L-shaped plate and is fixedly connected to an L-shaped tube, and the side of the L-shaped tube close to the arrester is fixedly installed with equidistantly distributed nozzles.

[0007] Preferably, a first gear is fixedly connected to the outer side of the rotating tube, a servo motor is fixedly installed on the top of the L-shaped plate close to the rotating tube, a second gear is fixedly connected to the driving end of the servo motor, and the second gear is meshingly connected to the first gear.

[0008] Preferably, the top end of the rotating tube is fixedly connected with a rotating joint, and the top end of the rotating joint is fixedly connected with a hose.

[0009] Compared with the prior art, the beneficial effects of the present invention are:

[0010] 1. Through the cooperation between the plug rod, spring, socket and the clamping plate, when the arrester moves downward until the plug rod contacts the fixed tube, the plug rod is pushed to move inward and the spring is compressed. When the plug rod moves to the position corresponding to the socket, the elastic force of the spring is used to push the plug rod to move to one side of the socket, so that the plug rod is inserted into the inside of the socket, thereby installing and fixing the arrester. When the arrester needs to be disassembled, the plug rod is pressed inward at the same time to make the plug rod come out of the inside of the socket, thereby removing the restriction on the vertical movement of the arrester and disassembling the arrester. The installation and disassembly operations are convenient and quick, further improving the work efficiency.

[0011] 2. The second gear is driven to rotate by the servo motor, and the second gear is meshed with the first gear to drive the first gear to rotate, thereby driving the L-shaped tube to rotate, and the cleaning liquid flows along the flow channel formed by the hose, the rotating tube and the L-shaped tube, and is sprayed onto the surface of the lightning arrester by the nozzle, so as to comprehensively clean the outer surface of the lightning arrester. There is no need for workers to climb onto the transmission tower to perform high-altitude cleaning, thereby improving work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a schematic diagram of the overall split structure of the utility model.

[0015] Figure 3 It is a partial cross-sectional view of the utility model.

[0016] Figure 4 For this utility model Figure 3 Enlarged view of point A in the middle.

[0017] In the figure: 1. L-shaped plate; 2. connecting plate; 3. fixing cylinder; 4. lightning arrester; 5. plate groove; 6. clamping plate; 7. spring; 8. plug rod; 9. rotating tube; 10. L-shaped tube; 11. nozzle; 12. first gear; 13. servo motor; 14. second gear; 15. positioning hole; 16. mounting plate; 17. rotating joint; 18. hose. DETAILED DESCRIPTION

[0018] 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.

[0019] Example: Figure 1-4 As shown, the utility model provides a lightning protection device for a power transmission line, comprising an L-shaped plate 1, a connecting plate 2 is fixedly connected to one side of the bottom end of the L-shaped plate 1, a fixing tube 3 is fixedly connected to the end of the connecting plate 2 away from the L-shaped plate 1, a lightning arrester 4 is movably inserted inside the fixing tube 3, a symmetrically distributed plate groove 5 is opened inside the bottom end of the lightning arrester 4, a snap-in plate 6 is slidably snap-into the inside of the plate groove 5, a plug rod 8 is fixedly connected to one side of the snap-in plate 6, and the end of the plug rod 8 away from the snap-in plate 6 extends to the outside of the fixing tube 3.

[0020] The top of the L-shaped plate 1 is rotatably connected to a rotating tube 9, the bottom end of the rotating tube 9 extends to the bottom end of the L-shaped plate 1 and is fixedly connected to an L-shaped tube 10, and the side of the L-shaped tube 10 close to the lightning arrester 4 is fixedly installed with equidistantly distributed nozzles 11.

[0021] By adopting the above technical solution, the cleaning liquid flows out through the channel formed by the rotating tube 9 and the L-shaped tube 10 , and is sprayed onto the surface of the lightning arrester 4 by the nozzle 11 .

[0022] A first gear 12 is fixedly connected to the outer side of the rotating tube 9 , a servo motor 13 is fixedly installed on the top of the L-shaped plate 1 close to the rotating tube 9 , a second gear 14 is fixedly connected to the driving end of the servo motor 13 , and the second gear 14 is meshed with the first gear 12 .

[0023] By adopting the above technical solution, the servo motor 13 drives the second gear 14 to rotate, and the second gear 14 is engaged with the first gear 12, while driving the first gear 12 to rotate, thereby realizing the rotation of the L-shaped tube 10 and comprehensively cleaning the outer surface of the arrester 4.

[0024] A mounting plate 16 is fixedly connected to the bottom end of the L-shaped plate 1 at a side away from the connecting plate 2 , and positioning holes 15 are formed at the four corners of the top end of the mounting plate 16 .

[0025] By adopting the above technical solution, the L-shaped plate 1 can be easily installed and fixed through the cooperation between the mounting plate 16 and the positioning hole 15 .

[0026] The top end of the rotating tube 9 is fixedly connected with a rotating joint 17 , and the top end of the rotating joint 17 is fixedly connected with a hose 18 .

[0027] By adopting the above technical solution, the rotary joint 17 is provided to connect the rotary joint 17 with the rotating tube 9, so that the cleaning liquid flows in the pipeline formed by the hose 18 and the rotating tube 9 without affecting the rotation of the L-shaped tube 10.

[0028] A spring 7 is provided between one side of the clamping plate 6 and one side of the inner wall of the plate groove 5 .

[0029] By adopting the above technical solution and providing the spring 7, it is convenient to reset the insertion rod 8, and at the same time, the elastic force of the spring 7 is utilized to make the insertion rod 8 more firmly connected.

[0030] Working principle: when installing the lightning arrester 4, the L-shaped plate 1 is installed on the transmission tower through the cooperation between the positioning hole 15 and the mounting plate 16, and then the bottom end of the lightning arrester 4 is made to correspond to the internal position of the fixing tube 3, and then the bottom end of the lightning arrester 4 is inserted into the inside of the fixing tube 3. When the lightning arrester 4 moves downward until the insertion rod 8 contacts the fixing tube 3, the insertion rod 8 is pushed to move inward and the spring 7 is compressed. When the insertion rod 8 moves to the position corresponding to the insertion hole, the elastic force of the spring 7 is used to push the insertion rod 8 to move to one side of the insertion hole, so that the insertion rod 8 is inserted into the inside of the insertion hole, thereby installing and fixing the lightning arrester 4. When the lightning arrester 4 needs to be disassembled, the insertion rod 8 is pressed inward at the same time to make the insertion rod 8 disengage from the inside of the insertion hole, thereby releasing the restriction on the vertical movement of the lightning arrester 4 and disassembling the lightning arrester 4.

[0031] When it is necessary to clean the surface of the lightning arrester 4 regularly, the second gear 14 is driven to rotate by the servo motor 13, and the second gear 14 is engaged with the first gear 12, thereby driving the first gear 12 to rotate, thereby driving the L-shaped tube 10 to rotate, and the cleaning liquid flows along the flow channel formed by the hose 18, the rotating tube 9 and the L-shaped tube 10, and is sprayed onto the surface of the lightning arrester 4 by the nozzle 11, so that the outer surface of the lightning arrester 4 is fully cleaned.

[0032] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A lightning protection device for a transmission line, comprising an L-shaped plate (1), characterized in that: A connecting plate (2) is fixedly connected to one side of the bottom end of the L-shaped plate (1); an end of the connecting plate (2) away from the L-shaped plate (1) is fixedly connected to a fixing tube (3); a lightning arrester (4) is movably inserted inside the fixing tube (3); a symmetrically distributed plate groove (5) is opened inside the bottom end of the lightning arrester (4); a snap-on plate (6) is slidably snap-on inside the plate groove (5); an insertion rod (8) is fixedly connected to one side of the snap-on plate (6); and an end of the insertion rod (8) away from the snap-on plate (6) extends to the outside of the fixing tube (3).

2. A lightning protection device for transmission lines according to claim 1, characterized in that: The top end of the L-shaped plate (1) is rotatably connected to a rotating tube (9), the bottom end of the rotating tube (9) extends to the bottom end of the L-shaped plate (1) and is fixedly connected to an L-shaped tube (10), and the L-shaped tube (10) is fixedly installed with equidistantly distributed nozzles (11) on one side close to the lightning arrester (4).

3. A lightning protection device for transmission lines according to claim 2, characterized in that: A first gear (12) is fixedly connected to the outer side of the rotating tube (9); a servo motor (13) is fixedly installed on the top of the L-shaped plate (1) near the rotating tube (9); a second gear (14) is fixedly connected to the driving end of the servo motor (13); and the second gear (14) is meshingly connected to the first gear (12).

4. A lightning protection device for transmission lines according to claim 1, characterized in that: A mounting plate (16) is fixedly connected to the side of the bottom end of the L-shaped plate (1) away from the connecting plate (2), and positioning holes (15) are provided at the four corners of the top end of the mounting plate (16).

5. A lightning protection device for transmission lines according to claim 3, characterized in that: The top end of the rotating tube (9) is fixedly connected to a rotating joint (17), and the top end of the rotating joint (17) is fixedly connected to a hose (18).

6. A lightning protection device for transmission lines according to claim 1, characterized in that: A spring (7) is provided between one side of the clamping plate (6) and one side of the inner wall of the plate groove (5).

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