Lightning protection device for power transmission line

Abstract

The utility model discloses a lightning protection device for a power transmission line, which belongs to the technical field of power transmission lines and comprises a mounting rod and at least two mounting tables, a sliding rail is assembled on the upper end face of the mounting rod, and at least two groups of limiting assemblies are slidably arranged on the sliding rail. The lightning protection device for the power transmission line has the advantages that the position is flexibly adjusted, maintenance and operation are simplified, and cost is reduced, the second clamping plate is driven to move towards one side by rotating the threaded lead screw through mutual cooperation of parts in the arranged limiting assembly, so that abutting against the mounting rod is canceled, and the lightning protection device is convenient to use. Therefore, the limiting assembly can slide in the stroke range of the sliding rail, the mounting table is driven to adjust the position so as to adapt to different circuit structures and intervals, the adaptability and the coverage range of the mounting table are improved, the mounting table is flexibly adjusted without disassembling the whole mounting table, the complexity of maintenance and operation is reduced, and the maintenance cost is reduced. And the cost of reinstalling the mounting table is reduced, and meanwhile, the labor cost of maintenance and operation is also reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of power transmission lines, and particularly relates to a lightning protection device for power transmission lines. Background Technique

[0002] A power transmission line refers to a system for transmitting electric energy, usually composed of transmission towers, cables, insulators and other equipment. These lines are designed to carry high-voltage current in order to transmit the electric energy generated by power stations to places that need electricity, such as cities, factories and households. Transmission lines are usually divided into two types: overhead transmission tower lines and underground cables.

[0003] When installing power transmission lines, lightning protection devices are usually used in combination. Most of the existing lightning protection devices for transmission lines are lightning arresters. When in use, lightning arresters are usually fixedly installed on brackets through bolts. However, the fixed installation results in poor flexibility of the lightning arrester. When the power line needs to be adjusted, the fixed lightning arrester is cumbersome to disassemble and cannot flexibly adapt to the new line layout, increasing the complexity of maintenance and operation. Therefore, a lightning protection device for power transmission lines is proposed to solve the above problems. Content of the Utility Model

[0004] In view of one or more of the above defects or improvement requirements in the prior art, the utility model provides a lightning protection device for power transmission lines, which has the advantages of flexible position adjustment, simplified maintenance and operation, and reduced cost.

[0005] To achieve the above object, the utility model provides a lightning protection device for power transmission lines, including an installation rod and at least two installation platforms;

[0006] A slide rail is assembled on the upper end surface of the installation rod, and at least two groups of limiting components are slidably arranged on the slide rail;

[0007] The limiting component includes a fitting block that fits and slides in the slide rail. A positioning plate is assembled on the upper end surface of the fitting block. A first clamping plate is assembled on the lower end surface of the positioning plate and abuts against one side of the installation rod. Two guide rails are assembled on one side of the positioning plate and are arranged in parallel. A connecting plate is assembled at one end of the two guide rails. A threaded screw rod penetrates through the center point on one side of the connecting plate. A sliding shaft sleeve is engaged and slid on the outer part of the threaded screw rod. A sliding block is assembled on the outer part of the sliding shaft sleeve. Sliding blocks are fitted and slid on both of the two guide rails. The sliding block is located between the two sliding blocks and is connected to the two sliding blocks. Connecting blocks are assembled on one side of the two sliding blocks. A second clamping plate is assembled at the common lower end of the two connecting blocks and is parallel to the first clamping plate.

[0008] As a further improvement of the present utility model, a lightning arrester body is jointly assembled on the upper end surfaces of the positioning plate and the connecting plate, and the mounting table is assembled on the upper end surface of the lightning arrester body, and the connection part with the lightning arrester body is designed to be detachable.

[0009] As a further improvement of the present utility model, a first transmission rod is rotatably connected to the center point of the upper end surface of the positioning plate through a rotating shaft, a second transmission rod is rotatably connected to the center point of the upper end surface of the slider through a rotating shaft, and one end of the second transmission rod is rotatably connected to one end of the first transmission rod through a rotating shaft.

[0010] As a further improvement of the present utility model, one end of the threaded lead screw is connected to the positioning plate, and a deep groove ball bearing is assembled at the connection part.

[0011] As a further improvement of the present utility model, one mounting plate is assembled on each of the opposite sides of the mounting rod, and mounting holes are provided on both mounting plates.

[0012] As a further improvement of the present utility model, anti-slip patterns are provided on the inner side of the second clamping plate.

[0013] Generally speaking, compared with the prior art by the above technical solutions conceived by the present utility model, the beneficial effects include:

[0014] For the lightning protection device for power transmission lines of the present utility model, through the mutual cooperation between the components in the provided limiting component, by rotating the threaded lead screw to drive the second clamping plate to move to one side, so as to cancel the abutment with the mounting rod, the limiting component can be slid within the stroke range of the slide rail, and the mounting table is driven to adjust the position to adapt to different line structures and spacings, thereby improving the adaptability and coverage range of the mounting table. The mounting table can be flexibly adjusted without disassembling the whole mounting table, reducing the complexity of maintenance and operation, reducing the cost of reinstalling the mounting table, and at the same time reducing the labor cost of maintenance and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall installation structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the installation structure of the limiting component and the lightning arrester body of the present utility model;

[0017] Figure 3 It is a schematic diagram of the installation structure of the limiting component of the present utility model.

[0018] In all the attached drawings, the same reference numerals denote the same technical features, specifically: 1. mounting rod; 11. mounting plate; 2. slide rail; 3. limiting component; 30. fitting block; 301. positioning plate; 302. first clamping plate; 31. guide rail; 32. connecting plate; 33. threaded lead screw; 331. deep groove ball bearing; 34. sliding shaft sleeve; 35. slider; 36. sliding block; 361. connecting block; 37. second clamping plate; 38. first transmission rod; 39. second transmission rod; 4. mounting table; 40. lightning arrester body. Detailed implementation mode

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment

[0021] Provided by Figures 1-3 a lightning protection device for a power transmission line, comprising a mounting rod 1 and at least two mounting tables 4;

[0022] The upper end surface of the mounting rod 1 is equipped with a slide rail 2, and at least two groups of limiting components 3 are slidably arranged on the slide rail 2;

[0023] The limiting component 3 includes a fitting block 30 that fits and slides in the slide rail 2. The upper end surface of the fitting block 30 is equipped with a positioning plate 301. The lower end surface of the positioning plate 301 is equipped with a first clamping plate 302, and the first clamping plate 302 abuts against one side of the mounting rod 1. Two guide rails 31 are arranged in parallel on one side of the positioning plate 301. One end of the two guide rails 31 is jointly equipped with a connecting plate 32. A threaded lead screw 33 penetrates through the center point on one side of the connecting plate 32. A sliding shaft sleeve 34 is meshed and slid on the outside of the threaded lead screw 33. A slider 35 is equipped on the outside of the sliding shaft sleeve 34. Sliding blocks 36 are fitted and slid on both guide rails 31. The slider 35 is located between the two sliding blocks 36 and is connected to the two sliding blocks 36. Connecting blocks 361 are equipped on one side of the two sliding blocks 36. A second clamping plate 37 is jointly equipped at the lower ends of the two connecting blocks 361, and the second clamping plate 37 is parallel to the first clamping plate 302.

[0024] In this embodiment, through the mutual cooperation of the components within the limit component 3, by rotating the threaded lead screw 33, the second clamping plate 37 is driven to move to one side, thereby canceling the abutment against the mounting rod 1. Then, the limit component 3 can be slid within the stroke range of the slide rail 2, and the mounting table 4 is driven to adjust its position to adapt to different line structures and spacings. This improves the adaptability and coverage range of the mounting table 4. The mounting table 4 can be flexibly adjusted without disassembling the entire mounting table 4, reducing the complexity of maintenance and operation, the cost of reinstalling the mounting table 4, and also reducing the labor cost of maintenance and operation.

[0025] Specifically, referring to Figures 1-2 , an arrester body 40 is jointly assembled on the upper end surfaces of the positioning plate 301 and the connecting plate 32. The mounting table 4 is assembled on the upper end surface of the arrester body 40, and the connection between the mounting table 4 and the arrester body 40 is designed to be detachable.

[0026] In this embodiment, when the limit component 3 moves within the stroke range of the slide rail 2, the mounting table 4 connected through the arrester body 40 can be driven to move. A groove is provided on the upper end of the mounting table 4 for placing lines. The detachable design between the mounting table 4 and the arrester body 40 makes the later maintenance of the mounting table 4 simple and reduces the maintenance work.

[0027] Specifically, referring to Figures 1-3 , the center point on the upper end surface of the positioning plate 301 is rotatably connected to a first transmission rod 38 through a rotating shaft. The center point on the upper end surface of the slider 35 is rotatably connected to a second transmission rod 39 through a rotating shaft. One end of the second transmission rod 39 is rotatably connected to one end of the first transmission rod 38 through a rotating shaft.

[0028] In this embodiment, when the slider 35 moves, the second transmission rod 39 rotatably mounted on the upper end is driven to move. The second transmission rod 39 and the first transmission rod 38 are connected through a rotating shaft. Through the traction and limitation of the first transmission rod 38 and the second transmission rod 39, the movement of the slider 35 can be more stable.

[0029] Specifically, referring to Figure 3 , one end of the threaded lead screw 33 is connected to the positioning plate 301, and a deep groove ball bearing 331 is assembled at the connection.

[0030] In this embodiment, by installing a deep groove ball bearing 331 at the connection between the threaded lead screw 33 and the positioning plate 301, the rotation of the threaded lead screw 33 can be made smoother. At the same time, the friction between the threaded lead screw 33 and the positioning plate 301 can be reduced, and the service life of the threaded lead screw 33 can be extended.

[0031] Specifically, referring to Figure 1 , one mounting plate 11 is assembled on each of the opposite sides of the mounting rod 1, and mounting holes are provided on both mounting plates 11.

[0032] In this embodiment, by placing the mounting rod 1 at a suitable position on the transmission tower and installing bolts through the mounting holes on the mounting plates 11 provided on both sides of the mounting rod 1, the mounting rod 1 can be installed at the designated position.

[0033] Specifically, referring to Figures 1-3 , anti-slip patterns are provided on the inner side of the second clamping plate 37.

[0034] In this embodiment, the anti-slip patterns provided on the inner side of the second clamping plate 37 can increase the friction of the second clamping plate 37, making the clamping more stable.

[0035] The lightning protection device for power transmission lines of the present utility model:

[0036] During actual use, when maintenance personnel need to adjust the spacing of the mounting table 4, first rotate the provided threaded lead screw 33. When the threaded lead screw 33 rotates, due to the limitation of the two sliding blocks 36 on the slider 35, the sliding sleeve 34 externally engaged and slidably arranged drives the externally mounted slider 35 to slide within the stroke range of the threaded lead screw 33. When the second clamping plate 37 moves to one side and cancels the abutment with the mounting rod 1, the provided limiting component 3 can be pushed to slide within the stroke range of the slide rail 2 to adjust the spacing of the mounting table 4. After the adjustment is completed, rotate the threaded lead screw 33 again, so that the slider 35 drives the second clamping plate 37 to move closer to the first clamping plate 302. With the traction cooperation of the first transmission rod 38 and the second transmission rod 39, finally, the second clamping plate 37 tightly abuts against the mounting rod 1, and the fixed limit of the mounting table 4 can be completed, which is convenient and fast to adjust.

[0037] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device for a power transmission line, comprising a mounting pole (1) and at least two mounting platforms (4), characterized in that: The upper end surface of the mounting rod (1) is equipped with a slide rail (2), and at least two groups of limit assemblies (3) are slidably provided on the slide rail (2); The limit assembly (3) comprises an engaging block (30) engaged and sliding in the slide rail (2); the upper end surface of the engaging block (30) is equipped with a positioning plate (301); the lower end surface of the positioning plate (301) is equipped with a first clamping plate (302), and the first clamping plate (302) abuts against one side of the mounting rod (1); one side of the positioning plate (301) is equipped with two guide rails (31), and the two guide rails (31) are arranged in parallel; one end of the two guide rails (31) is jointly equipped with a connecting plate (32), and a threaded screw rod (301) is penetrated at the center point of one side of the connecting plate (32). 3), the threaded screw (33) is externally meshed and slidably provided with a sliding sleeve (34), the sliding sleeve (34) is externally equipped with a slider (35), the two guide rails (31) are both fitted with sliding blocks (36), the slider (35) is located between the two sliding blocks (36) and is connected to the two sliding blocks (36), one side of the two sliding blocks (36) is equipped with a connecting block (361), the lower ends of the two connecting blocks (361) are jointly equipped with a second clamping plate (37), and the second clamping plate (37) is arranged in parallel with the first clamping plate (302).

2. The lightning protection device for power transmission lines according to claim 1, characterized in that: The upper end surfaces of the positioning plate (301) and the connecting plate (32) are jointly equipped with a lightning arrester body (40); the mounting platform (4) is mounted on the upper end surface of the lightning arrester body (40) and the connection with the lightning arrester body (40) is of detachable design.

3. The lightning protection device for power transmission lines according to claim 1, characterized in that: A first transmission rod (38) is rotatably connected to the center point of the upper end surface of the positioning plate (301) via a rotating shaft, and a second transmission rod (39) is rotatably connected to the center point of the upper end surface of the sliding block (35) via a rotating shaft. The second transmission rod (39) is rotatably connected to one end of the first transmission rod (38) via a rotating shaft.

4. The lightning protection device for power transmission lines according to claim 1, characterized in that: One end of the threaded screw rod (33) is connected to the positioning plate (301) and a deep groove ball bearing (331) is installed at the connection point.

5. The lightning protection device for power transmission lines according to claim 1, characterized in that: The mounting rod (1) is respectively equipped with a mounting plate (11) on two opposite sides, and both mounting plates (11) are provided with mounting holes.

6. The lightning protection device for power transmission lines according to claim 1, characterized in that: The inner side of the second clamping plate (37) is provided with anti-slip patterns.

Images