Protective device for maintenance of high-voltage transmission line

Abstract

The utility model discloses a protective device for high voltage transmission line maintenance, which comprises a damping cylinder, a pull rod and a first hook, the pull rod is arranged in the damping cylinder, one end of the pull rod is integrally connected with a piston block, the surface of the piston block is provided with a first sealing ring, and the piston block is arranged in the damping cylinder and can slide in the damping cylinder. A ventilation plate is installed on the inner wall of one end of the damping cylinder, multiple sets of penetrating holes are formed in the surface of the ventilation plate, the pull rod is arranged on the inner side of the ventilation plate, first air holes are formed in the surface of one end of the damping cylinder and penetrate through the interior of the damping cylinder, and two sets of second air holes are formed in the surface of the other end of the damping cylinder. The second air hole is formed in one side of the ventilation plate.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power protection devices, in particular to a protection device for maintenance of high-voltage transmission lines. Background Art

[0002] In the power system, the maintenance of high-voltage transmission lines is of vital importance, which is directly related to the stable operation of the power grid and the power supply quality. However, due to the characteristics of high voltage transmission lines such as high voltage, large current and wide distribution range, the maintenance work faces great challenges and risks.

[0003] When conducting high-altitude line maintenance, it is necessary to tie a safety belt around the body to ensure the safety of the maintenance personnel. However, the existing safety belts do not have a buffer device. In the event of a fall, due to the effect of inertia, the falling force will directly act on the person, causing certain harm to the human body. Therefore, a protective device for high-voltage transmission line maintenance is proposed to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for high-voltage transmission line maintenance to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a protective device for high-voltage transmission line maintenance, comprising a damping cylinder, a pull rod and a first hook, wherein the pull rod is arranged inside the damping cylinder, one end of the pull rod is integrally connected with a piston block, a first sealing ring is installed on the surface of the piston block, and the piston block is arranged inside the damping cylinder and can slide inside the damping cylinder;

[0006] A vent plate is installed on the inner wall of one end of the damping cylinder, and a surface of the vent plate is provided with perforations, and the perforations are provided in multiple groups, and the pull rod is provided on the inner side of the vent plate;

[0007] A first air hole is opened on the surface of one end of the damping cylinder, and the first air hole passes through the interior of the damping cylinder. A second air hole is opened on the surface of the other end of the damping cylinder, and two groups of the second air holes are arranged. The second air holes are opened on one side of the ventilation plate.

[0008] Furthermore, a fixing plate is installed on the surface of the pull rod and one end of the damping cylinder, and the inner surfaces of the two groups of fixing plates are connected with second springs. There are two groups of the second springs, which are respectively arranged on both sides of the damping cylinder.

[0009] Furthermore, a first spring is arranged inside the damping cylinder, and the first spring is sleeved on the outside of one end of the pull rod.

[0010] Furthermore, a second sealing ring is arranged on the inner wall of one end of the damping cylinder, and two groups of the second sealing rings are arranged.

[0011] Furthermore, a second mounting block is disposed on the surface of one end of the damping cylinder, and a second hook is disposed at one end of the second mounting block, and the second hook can rotate inside the second mounting block.

[0012] Furthermore, a first mounting block is provided at one end of the first hook, one end of the first hook can rotate outside the first mounting block, and one end of the first mounting block is connected to the surface of one end of the pull rod.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By pulling one end of the pull rod, the connected piston block is driven to move, so that it squeezes the air in the damping cylinder to one side. A ventilation plate is installed on the inner wall of one end of the damping cylinder. A plurality of perforations are provided on the surface of the ventilation plate. The squeezed air is discharged from the second air hole through the perforations. When the air passes through the perforations, due to the small space, a certain resistance is formed when the air is discharged, thereby playing a buffering role.

[0015] 2. By setting the first spring and the second spring, when the pull rod moves to one side, the second spring is pulled and the first spring is squeezed respectively, so that a reaction force is formed, the buffering force is improved, and the damage to the human body caused by inertia during falling is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main view of the utility model;

[0017] Figure 2 This is a cross-sectional view of the damping cylinder of the utility model;

[0018] Figure 3 This is a schematic diagram of the pull rod of the utility model;

[0019] Figure 4 This is a schematic diagram of the ventilation plate of the utility model;

[0020] In the figure: 1-damping cylinder, 2-pull rod, 3-first hook, 4-first mounting block, 5-second spring, 6-fixing plate, 7-second mounting block, 8-second hook, 9-first air hole, 10-second sealing ring, 11-vent plate, 12-second air hole, 13-first spring, 14-piston block, 15-first sealing ring, 16-through hole. DETAILED DESCRIPTION

[0021] 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.

[0022] Please refer to Figure 1 to Figure 4 As shown, the utility model is a protective device for high-voltage transmission line maintenance, including a protective device for high-voltage transmission line maintenance, including a damping cylinder 1, a pull rod 2 and a first hook 3, the pull rod 2 is arranged inside the damping cylinder 1, one end of the pull rod 2 is connected with a piston block 14, a first sealing ring 15 is installed on the surface of the piston block 14, and the piston block 14 is arranged inside the damping cylinder 1 and can slide inside the damping cylinder 1;

[0023] A vent plate 11 is installed on the inner wall of one end of the damping cylinder 1. The surface of the vent plate 11 is provided with perforations 16. The perforations 16 are provided in multiple groups. The pull rod 2 is provided on the inner side of the vent plate 11.

[0024] A first air hole 9 is opened on the surface of one end of the damping cylinder 1, and the first air hole 9 passes through the interior of the damping cylinder 1. A second air hole 12 is opened on the surface of the other end of the damping cylinder 1. The second air holes 12 are arranged in two groups and are opened on one side of the ventilation plate 11.

[0025] When in use, the piston block 14 connected integrally therewith is driven by pulling one end of the pull rod 2, thereby squeezing the air in the damping cylinder 1 to one side. A ventilation plate 11 is installed on the inner wall at one end of the damping cylinder 1, and a plurality of groups of perforations 16 are provided on the surface of the ventilation plate 11. The squeezed air is discharged from the second air hole 12 through the perforations 16. When the air passes through the perforations 16, due to the small space, a certain resistance is formed when the air is discharged, thereby playing a buffering role.

[0026] Please refer to Figure 1 A fixing plate 6 is installed on the surface of the pull rod 2 and one end of the damping cylinder 1. The inner surfaces of the two groups of fixing plates 6 are connected to the second springs 5. Two groups of second springs 5 ​​are provided, which are respectively arranged on both sides of the damping cylinder 1. Through the second springs 5, when the pull rod 2 moves to one side, it drives a group of fixing plates 6 to move with it, thereby pulling the second springs 5 ​​to form a reaction force and improve the buffering force.

[0027] Please refer to Figure 3A first spring 13 is arranged inside the damping cylinder 1, and the first spring 13 is sleeved on the outside of one end of the pull rod 2. Through the arrangement of the first spring 13, when the piston block 14 squeezes the air in the damping cylinder 1, it also squeezes the first spring 13 to one side. Through the rebound force of the first spring 13, a secondary buffering effect can be achieved.

[0028] Please refer to Figure 2 A second sealing ring 10 is arranged on the inner wall of one end of the damping cylinder 1. Two groups of the second sealing rings 10 are arranged. The second sealing rings 10 can seal the outer side of the pull rod 2 to prevent the gap from being too large, thereby causing the damping failure.

[0029] Please refer to Figure 1 A second mounting block 7 is provided on the surface of one end of the damping cylinder 1, and a second hook 8 is provided at one end of the second mounting block 7. The second hook 8 can rotate on the inner side of the second mounting block 7. The second hook 8 is provided to facilitate hanging one end of the device on a solid object.

[0030] Please refer to Figure 1 A first mounting block 4 is provided at one end of the first hook 3, and one end of the first hook 3 can be rotated outside the first mounting block 4. One end of the first mounting block 4 is connected to the surface of one end of the pull rod 2. By setting the first hook 3, it is convenient to hang one end of the device on the human body. By setting the rotatable first hook 3, it can avoid rope entanglement when it rotates.

[0031] Working principle: The utility model is a protective device for high-voltage transmission line maintenance. First, the first hook 3 is driven by the falling force to pull the pull rod 2, and the piston block 14 connected to the pull rod 2 is driven to move, so that it squeezes the air in the damping cylinder 1 to one side. A vent plate 11 is installed on the inner wall of one end of the damping cylinder 1. The surface of the vent plate 11 is provided with multiple groups of perforations 16. The squeezed air is discharged from the second air hole 12 through the perforations 16. When the air passes through the perforations 16, due to the small space, a certain resistance is formed when the air is discharged. , so that it can play a buffering role. When the piston block 14 squeezes the air in the damping cylinder 1, it also squeezes the first spring 13 to one side. Through the resilience of the first spring 13, it can play a secondary buffering effect. By installing fixed plates 6 on the surfaces of the damping cylinder 1 and one end of the pull rod 2, two groups of second springs 5 ​​are connected to the inner surfaces of the two groups of fixed plates 6. When the pull rod 2 moves to one side, it drives one group of fixed plates 6 to move with it, thereby pulling the second spring 5 to form a reaction force, thereby improving the buffering force and greatly reducing the damage to the human body caused by inertia during falling.

[0032] The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0033] 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 protective device for high-voltage transmission line maintenance, comprising a damping cylinder (1), a pull rod (2) and a first hook (3), characterized in that: The pull rod (2) is arranged inside the damping cylinder (1), one end of the pull rod (2) is integrally connected with a piston block (14), a first sealing ring (15) is installed on the surface of the piston block (14), and the piston block (14) is arranged inside the damping cylinder (1) and can slide inside the damping cylinder (1); A vent plate (11) is installed on the inner wall of one end of the damping cylinder (1), the surface of the vent plate (11) is provided with perforations (16), and the perforations (16) are provided in multiple groups. The pull rod (2) is arranged on the inner side of the vent plate (11); A first air hole (9) is provided on the surface of one end of the damping cylinder (1), and the first air hole (9) passes through the interior of the damping cylinder (1). A second air hole (12) is provided on the surface of the other end of the damping cylinder (1), and the second air hole (12) is provided in two groups. The second air hole (12) is provided on one side of the ventilation plate (11).

2. A protective device for high-voltage transmission line maintenance according to claim 1, characterized in that: A fixing plate (6) is installed on the surface of the pull rod (2) and one end of the damping cylinder (1), and the inner surfaces of the two groups of fixing plates (6) are connected to second springs (5). The second springs (5) are provided in two groups, which are respectively arranged on both sides of the damping cylinder (1).

3. A protective device for high-voltage transmission line maintenance according to claim 1, characterized in that: A first spring (13) is arranged inside the damping cylinder (1), and the first spring (13) is sleeved on the outside of one end of the pull rod (2).

4. A protective device for high-voltage transmission line maintenance according to claim 3, characterized in that: A second sealing ring (10) is arranged on the inner wall of one end of the damping cylinder (1), and two groups of the second sealing rings (10) are arranged.

5. A protective device for high-voltage transmission line maintenance according to claim 4, characterized in that: A second mounting block (7) is arranged on the surface of one end of the damping cylinder (1), and a second hook (8) is arranged at one end of the second mounting block (7). The second hook (8) can rotate inside the second mounting block (7).

6. A protective device for high-voltage transmission line maintenance according to claim 1, characterized in that: A first mounting block (4) is provided at one end of the first hook (3); one end of the first hook (3) can rotate outside the first mounting block (4); and one end of the first mounting block (4) is connected to the surface of one end of the pull rod (2).

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