Power transmission line maintenance ladder

Abstract

The utility model relates to the technical field of maintenance ladders, in particular to a power transmission line maintenance ladder, which comprises a ladder body, a power transmission line maintenance ladder body and a power transmission line maintenance ladder body, and a moving structure is inserted into the bottom end of the supporting frame and comprises a limiting screw rod, the outer wall of the top end of the limiting screw rod is sleeved with a positioning rod, one end of the positioning rod is movably connected with a rolling wheel, a magnet is arranged on one side of the positioning rod, and a magnetic plate is attracted to the surface of the magnet. The limiting screw is rotationally connected into the threaded hole formed in the supporting frame, one end of the limiting screw is inserted into the limiting hole formed in the positioning rod, rotation of the positioning rod is not affected while the limiting screw is used for limiting the positioning rod, and when the supporting frame is moved, the angle of the positioning rod is rotated, so that the magnet and the magnetic plate are separated; therefore, the rolling wheels are used for assisting the bottom of the supporting frame to move, and the problems that manual carrying is low in efficiency, time-consuming and labor-consuming, and collision is likely to be caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance ladders, in particular to a maintenance ladder for transmission lines. Background Art

[0002] The transmission line is realized by boosting the electric energy generated by the generator with a transformer and then connecting it to the transmission line through control devices such as circuit breakers. In terms of structural form, the transmission line is divided into overhead transmission lines and cable lines. When maintaining the transmission line, a ladder is usually used to support workers, so as to facilitate climbing and enable them to perform maintenance operations on the high-voltage transmission line.

[0003] When using the existing maintenance ladder for transmission lines, its function is to support workers to climb, so as to maintain the high-voltage transmission line. However, when the existing maintenance ladder is moved, it is carried manually. When the moving distance is too long, the efficiency of manual handling is low, time-consuming and laborious, and it is easy to cause knocking problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a maintenance ladder for transmission lines, so as to solve the problems in the above-mentioned background art that when the existing maintenance ladder is moved, it is carried manually. When the moving distance is too long, the efficiency of manual handling is low, time-consuming and laborious, and it is easy to cause knocking problems.

[0005] To achieve the above purpose, the utility model provides the following technical solution. A maintenance ladder for transmission lines includes:

[0006] A ladder body, including a support frame, and a footrest is connected to the inner side of the support frame;

[0007] A moving structure is inserted into the bottom end of the support frame, including a limit screw. A positioning rod is sleeved on the outer wall of the top end of the limit screw. One end of the positioning rod is movably connected with a roller. A magnet is arranged on one side of the positioning rod, and a magnetic plate is adsorbed on the surface of the magnet.

[0008] Preferably, positioning grooves are formed on both side surfaces of the support frame, and the positioning rod is inserted into the positioning grooves formed in the support frame.

[0009] Preferably, a threaded hole is formed on one side of the inner wall of the positioning groove formed in the support frame. The limit screw is rotatably connected to the threaded hole formed in the support frame. A limit hole is formed on the surface of the top end of the positioning rod, and the top end of the limit screw is inserted into the limit hole formed in the positioning rod.

[0010] Preferably, the magnetic plate is connected to one side of the inner wall of the positioning groove formed in the support frame, and there is a magnetic force between the magnet and the magnetic plate for mutual adsorption.

[0011] Preferably, a protective structure is sleeved on the outer wall of one side of the bottom of the support frame. The protective structure includes a rubber sleeve, an anti-abrasion pad is arranged on the outer surface of the rubber sleeve, fixing rings are connected inside both sides of the rubber sleeve, and fixing screws are inserted inside the fixing rings.

[0012] Preferably, slot holes are formed on both sides of the rubber sleeve, and the fixing rings are connected to the inner surfaces of the slot holes formed in the rubber sleeve.

[0013] Preferably, threaded grooves are formed on both sides of the support frame, and one end of the fixing screw passes through the inside of the fixing ring and is rotatably connected to the inside of the threaded groove formed in the support frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. By rotatably connecting the limit screw to the threaded hole formed in the support frame and inserting one end of the limit screw into the limit hole formed in the positioning rod, while limiting the positioning rod by the limit screw, its rotation is not affected. When moving the support frame, the angle of the positioning rod is rotated to separate the magnet and the magnetic plate, so as to use the rollers to assist in moving the bottom of the support frame, avoiding the problems of low efficiency, time-consuming and laborious manual handling, and easy to cause bumps.

[0016] 2. By sleeving the rubber sleeve on the outer surface of one side of the bottom end of the support frame, and then passing one end of the fixing screw through the fixing ring and rotatably connecting it to the inside of the threaded groove formed in the support frame, the connection between the support frame and the rubber sleeve is fixed by the fixing screw, and the rubber sleeve buffers one side of the bottom of the support frame, so that the support frame is in flexible contact with the ground, and the anti-abrasion pad is used to protect the surface of the rubber sleeve from abrasion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front three-dimensional schematic view of the structure of the present utility model;

[0018] Figure 2 is a side three-dimensional schematic view of the structure of the present utility model;

[0019] Figure 3 is a bottom-up partial cross-sectional three-dimensional schematic view of the structure of the present utility model;

[0020] Figure 4 is a front partial cross-sectional plan schematic view of the structure of the present utility model;

[0021] Figure 5 is a top-down partial cross-sectional three-dimensional schematic view of the structure of the present utility model.

[0022] In the figure: 1. Ladder body; 11. Support frame; 12. Footrest; 2. Moving structure; 21. Limit screw; 22. Positioning rod; 23. Roller; 24. Magnet; 25. Magnetic plate; 3. Protection structure; 31. Rubber sleeve; 32. Abrasion-proof pad; 33. Fixed ring; 34. Fixed screw. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present invention:

[0025] A maintenance ladder for a transmission line, comprising:

[0026] The ladder body 1 includes a support frame 11. The inner side of the support frame 11 is connected with a footrest 12. The internal material of the support frame 11 is the prior art and can be purchased on the market, which is not the technical protection point of this application. Therefore, no excessive description will be made.

[0027] The moving structure 2 is inserted into the bottom end inside the support frame 11, including a limit screw 21. The outer wall of the top end of the limit screw 21 is sleeved with a positioning rod 22. One end of the positioning rod 22 is movably connected with a roller 23. A magnet 24 is arranged on one side of the positioning rod 22, and a magnetic plate 25 is adsorbed on the surface of the magnet 24.

[0028] Furthermore, positioning grooves are opened on both side surfaces of the support frame 11. The positioning rod 22 is inserted into the positioning grooves opened in the support frame 11, so as to position the positioning rod 22 through the positioning grooves opened in the support frame 11.

[0029] Furthermore, a threaded hole is opened on one side of the inner wall of the positioning groove opened in the support frame 11. The limit screw 21 is rotatably connected to the threaded hole opened in the support frame 11. A limit hole is opened on the top surface of the positioning rod 22. The top end of the limit screw 21 is inserted into the limit hole opened in the positioning rod 22, so as to position one end of the limit screw 21 through the limit hole opened in the positioning rod 22.

[0030] Furthermore, the magnetic plate 25 is connected to one side of the inner wall of the positioning groove opened in the support frame 11. There is a magnetic force between the magnet 24 and the magnetic plate 25 for mutual adsorption, so as to limit the positioning rod 22 through the magnet 24 and the magnetic plate 25.

[0031] Furthermore, a protective structure 3 is sleeved on the outer wall of one side of the bottom of the support frame 11. The protective structure 3 includes a rubber sleeve 31. An anti-abrasion pad 32 is arranged on the outer surface of the rubber sleeve 31. Fixed rings 33 are connected to the inner parts on both sides of the rubber sleeve 31. A fixed screw 34 is inserted into the fixed ring 33, so as to protect the bottom of the support frame 11 through the rubber sleeve 31.

[0032] Furthermore, slot holes are formed on both sides of the rubber sleeve 31. The fixed ring 33 is connected to the inner surface of the slot holes formed in the rubber sleeve 31, so as to limit the fixed ring 33 through the slot holes formed in the rubber sleeve 31.

[0033] Furthermore, threaded grooves are formed on both sides of the support frame 11. One end of the fixed screw 34 passes through the inside of the fixed ring 33 and is rotatably connected to the inside of the threaded groove formed in the support frame 11, so as to limit one end of the fixed screw 34 through the threaded groove formed in the support frame 11.

[0034] Working principle: When moving the maintenance ladder for transmission lines, the limit screw 21 is rotatably connected to the threaded hole formed in the support frame 11, and one end of the limit screw 21 is inserted into the limit hole formed in the positioning rod 22. While limiting the positioning rod 22 by the limit screw 21, its rotation is not affected. When moving the support frame 11, the angle of the positioning rod 22 is rotated to separate the magnet 24 and the magnetic plate 25, so as to use the roller 23 to assist in moving the bottom of the support frame 11.

[0035] When protecting the maintenance ladder for transmission lines, the rubber sleeve 31 is sleeved on the outer surface of one side of the bottom end of the support frame 11. Then, one end of the fixed screw 34 passes through the fixed ring 33 and is rotatably connected to the inside of the threaded groove formed in the support frame 11. The fixed screw 34 is used to connect and fix the support frame 11 and the rubber sleeve 31. The rubber sleeve 31 buffers one side of the bottom of the support frame 11, so that the support frame 11 is in flexible contact with the ground. The anti-abrasion pad 32 is used to protect the surface of the rubber sleeve 31 from abrasion.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A power transmission line maintenance ladder, characterized in that: include: A ladder body (1) comprises a support frame (11), wherein a foot frame (12) is connected to the inner side of the support frame (11); A movable structure (2) is inserted into the bottom of the support frame (11), comprising a limit screw (21), a positioning rod (22) is sleeved on the outer wall of the top end of the limit screw (21), one end of the positioning rod (22) is movably connected to a roller (23), a magnet (24) is arranged on one side of the positioning rod (22), and a magnetic plate (25) is adsorbed on the surface of the magnet (24).

2. A power transmission line maintenance ladder according to claim 1, characterized in that: Positioning grooves are provided on both side surfaces of the support frame (11), and the positioning rods (22) are inserted into the positioning grooves provided on the support frame (11).

3. A power transmission line maintenance ladder according to claim 1, characterized in that: A threaded hole is provided on one side of the inner wall of the positioning groove provided in the support frame (11); the limiting screw (21) is rotatably connected to the inside of the threaded hole provided in the support frame (11); a limiting hole is provided on the top surface of the positioning rod (22); and the top end of the limiting screw (21) is inserted into the inside of the limiting hole provided in the positioning rod (22).

4. A power transmission line maintenance ladder according to claim 1, characterized in that: The magnetic plate (25) is connected to one side of the inner wall of the positioning groove opened in the support frame (11), and there is magnetic force between the magnet (24) and the magnetic plate (25) to attract each other.

5. A power transmission line maintenance ladder according to claim 1, characterized in that: A protective structure (3) is sleeved on the outer wall of one side of the bottom of the support frame (11), and the protective structure (3) comprises a rubber sleeve (31). An anti-wear pad (32) is arranged on the outer surface of the rubber sleeve (31). Fixed rings (33) are internally connected to both sides of the rubber sleeve (31), and a fixing screw (34) is inserted into the interior of the fixed ring (33).

6. A power transmission line maintenance ladder according to claim 5, characterized in that: Slots are formed on both sides of the rubber sleeve (31), and the fixing ring (33) is connected to the inner surfaces of the slots formed in the rubber sleeve (31).

7. A power transmission line maintenance ladder according to claim 5, characterized in that: Thread grooves are provided on both sides of the support frame (11), and one end of the fixing screw rod (34) passes through the interior of the fixing ring (33) and is rotatably connected to the interior of the thread groove provided on the support frame (11).

Images