Anti-falling safety rope fixing device

Abstract

The utility model provides an anti-falling safety rope fixing device which comprises a U-shaped support, a wheel shaft and a fixing plate, the wheel shaft is rotationally arranged at the upper end of the U-shaped support, and the fixing plate connected with iron tower angle iron is fixedly arranged at the lower end of the U-shaped support. An L-shaped safety rope fixing pile is fixedly arranged on the wheel shaft, the fixing plate is L-shaped and fixedly connected with the top face and the side face of iron tower angle iron, and a locking structure is arranged on the side face of the wheel shaft. The self-locking device has the advantages that the self-locking function is achieved through matching of the ratchet wheel and the pawl, the fixing plate is connected with iron tower angle iron more stably, it is guaranteed that when an operator works aloft, if falling occurs, the ratchet wheel device can rapidly lock and prevent a rope or a mooring rope from further sliding, and therefore the emergency stopping function is achieved, and the safety of the operator is guaranteed. And personnel safety is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mine card, concretely relates to a kind of anti-falling safety rope fixing device. BACKGROUND

[0002] With the increasing pace of State Grid Corporation of China power grid construction, power transmission network continues to extend to more extensive territory, and 110kV and above transmission line as the backbone of power transmission, its construction scale and complexity also significantly improve. The tower design of these transmission lines, in order to meet the long distance, large capacity power transmission demand, its height often easily break through the conventional limit of 40 meters.

[0003] At such height, the installation of line, daily operation and maintenance and emergency repair work, all put forward high requirements and challenges to operating personnel. Operating personnel not only need to have solid professional skills and rich practical experience, but also need to face the huge safety risk brought by high-altitude operation in the process of frequent tower climbing, especially high-altitude falling, which is a fatal threat. Therefore, to ensure the safety of high-altitude operation has become an important issue that cannot be ignored in the power industry.

[0004] Traditionally, operating personnel mainly rely on safety belt, a basic protective equipment, to reduce the risk of falling when carrying out high-altitude operation. However, in actual operation, the adaptability problem of safety rope and iron tower angle iron gradually emerges. Due to the shape and size problem of iron tower angle iron, safety rope is often difficult to realize close and stable connection with it. The lack of adaptability not only reduces the protection effect of safety belt, but also may cause the falling accident of operating personnel at critical moment, with unpredictable consequences.

[0005] Therefore, from the height of protecting the life safety of operating personnel, improving work efficiency and promoting the sustainable development of power industry, it is particularly important and urgent to develop a high-altitude operation anti-falling device that can perfectly adapt to iron tower angle iron. CONTENT OF UTILITY MODEL

[0006] The utility model aims at providing a kind of anti-falling safety rope fixing device to solve the problem that existing safety rope fixing device is difficult to realize close and stable connection with iron tower angle iron.

[0007] The utility model provides a kind of anti-falling safety rope fixing device, including U-shaped support, wheel shaft and fixed plate, U-shaped support upper end rotationally arranged wheel shaft, U-shaped support lower end fixedly arranged fixed plate connected with iron tower angle iron;

[0008] L-shaped safety rope fixing pile is fixedly arranged on the wheel shaft, the fixed plate is L-shaped and is fixedly connected with the top surface and the side surface of iron tower angle iron respectively, and the wheel shaft side surface is provided with locking structure.

[0009] Further, the locking structure comprises a ratchet wheel and a pawl, the ratchet wheel is fixedly arranged on one side of the wheel shaft, and the pawl is rotatably arranged on the side of the U-shaped support, and a protrusion (8) is arranged on the side of the pawl to be clamped between the gear teeth of the ratchet wheel.

[0010] As a preferred solution, the shaft head of the wheel shaft is provided with a through hole that can pass through the long shaft.

[0011] As a preferred solution, the rotating shaft of the pawl is provided with a positioning pin, so that the swing range of the pawl is adapted to the position of the ratchet wheel.

[0012] As a preferred solution, the rotating shaft of the pawl is provided with a torsional spring, so that the pawl is automatically returned to the ratchet wheel.

[0013] As a preferred solution, the part of the fixed plate connected with the top plate of the iron tower angle iron is a double-layer clamping plate, which clamps the top plate of the iron tower angle iron.

[0014] The utility model has the advantages that:

[0015] 1. The utility model discloses a ratchet wheel and a pawl, realizing self-locking function, and the fixed plate is more stably connected with the iron tower angle iron, guaranteeing that if falling occurs when the operator is working in the air, the ratchet wheel can be quickly locked to prevent the further sliding of the rope or cable, thereby playing an emergency stopping role and guaranteeing the safety of personnel.

[0016] 2. The utility model discloses a ratchet wheel and a pawl, realizing self-locking function, and the fixed plate is more stably connected with the iron tower angle iron, guaranteeing that if falling occurs when the operator is working in the air, the ratchet wheel can be quickly locked to prevent the further sliding of the rope or cable, thereby playing an emergency stopping role and guaranteeing the safety of personnel. DRAWINGS

[0017] In order to make the content of the utility model more easily understood clearly, the utility model will be further explained in detail below according to specific embodiments and in conjunction with the drawings, wherein

[0018] Fig. 1 The utility model discloses a structure schematic view.

[0019] Fig. 2 The utility model discloses another angle structure schematic view.

[0020] The reference signs in the drawings are as follows:

[0021] 1. U-shaped support, 2. Wheel shaft, 3. Fixed plate, 4. Safety rope fixing pile, 5. Locking structure, 6. Ratchet wheel, 7. Pawl, 8. Protrusion, 9. Shaft head. CONCRETE IMPLEMENTATION

[0022] To illustrate the characteristics of the present application, the following further describes the present application in conjunction with the accompanying drawings and examples.

[0023] Embodiment:

[0024] Please refer to Figs. 1-2 The present application provides a U-shaped support 1, an axle 2 and a fixed plate 3. The U-shaped support 1 is rotatably provided with the axle 2 at the upper end, and the fixed plate 3 is fixedly provided at the lower end of the U-shaped support 1 to connect the angle iron of the iron tower. In order to ensure the stability of the connection, the present application is provided with an L-shaped safety rope fixing pile 4 fixedly arranged on the axle 2. One end of the safety rope is tied to the safety rope fixing pile 4, and the L-shaped safety rope fixing pile 4 can effectively prevent the safety rope from loosening. In addition, the fixed plate 3 is L-shaped and fixedly connected to the top surface and the side surface of the angle iron of the iron tower by means of bolt connection. In addition, in consideration of safety performance, the present application is provided with a locking structure 5 on the side surface of the axle 2 to prevent the axle 2 from being reversed.

[0025] In the present application, the locking structure 5 includes a ratchet wheel 6 and a pawl 7. The ratchet wheel 6 is fixedly arranged on one side of the axle 2, and the pawl 7 is rotatably arranged on the side surface of the U-shaped support 1. The side surface of the pawl 7 is provided with a protrusion 8 which is clamped between the teeth of the ratchet wheel 6. When clamped, the pawl 7 can be clamped deeper due to the setting of the arc on both sides of the pawl 7, so that the axle 2 can be effectively prevented from being reversed. Of course, in order to achieve the above technical effects, a positioning pin is arranged on the rotating shaft of the pawl 7, so that the swinging range of the pawl 7 is adapted to the position of the ratchet wheel 6. A torsional spring is arranged on the rotating shaft of the pawl 7, so that the pawl 7 can automatically return to the ratchet wheel 6.

[0026] In addition, the present application also makes some adaptive improvements for the problems in use. A through hole which can pass through the long shaft is arranged on the shaft head 9 of the axle 2. When the axle needs to be manually adjusted, any long rod device can be used to pass through the through hole to twist and rotate the axle 2, which saves time and effort. In addition, the part connecting the fixed plate 3 and the top plate of the angle iron of the iron tower is a double-layered clamping plate which clamps the top plate of the angle iron of the iron tower, further increasing the stability of the connection with the angle iron of the iron tower.

[0027] The above examples and drawings are only used to illustrate the technical scheme of the present application, and are not limited to the present application. The preferred embodiments of the present application have been described in detail, and those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the essential scope of the present application do not deviate from the purpose of the present application, and should also belong to the protection scope of the claims of the present application. Other related technical structures not described in detail in the present application are the existing technologies in the art.

Claims

1. A fall arrest safety line fixing device, characterised in that: Including U-shaped support (1), wheel axle (2) and fixed plate (3), the upper end of U-shaped support (1) is rotatably provided with wheel axle (2), and the lower end of U-shaped support (1) is fixedly provided with fixed plate (3) connected with tower corner iron; The wheel axle (2) is fixedly provided with an L-shaped safety rope fixing pile (4), the fixed plate (3) is L-shaped and is fixedly connected with the top surface and the side surface of the tower corner iron respectively, and the wheel axle (2) is provided with a locking structure (5) on the side surface.

2. The fall arrest safety line fixation device of claim 1, wherein: The locking structure (5) comprises a ratchet wheel (6) and a pawl (7), the ratchet wheel (6) is fixedly arranged on one side of the wheel axle (2), the pawl (7) is rotatably arranged on the side surface of the U-shaped support (1), and a protrusion (8) is arranged on the side surface of the pawl (7) and is clamped between the teeth of the ratchet wheel (6).

3. The fall arrest safety line anchor of claim 1, wherein: The shaft head (9) of the wheel axle (2) is provided with a through hole that can pass through the long shaft.

4. The fall arrest safety line fixation device of claim 2, wherein: The rotating shaft of the pawl (7) is provided with a positioning pin, so that the swing amplitude of the pawl (7) is matched with the position of the ratchet wheel (6).

5. The fall arrest safety line anchor of claim 2, wherein: The rotating shaft of the pawl (7) is provided with a torsion spring, so that the pawl (7) is automatically returned to the ratchet wheel (6).

6. The fall arrest safety line anchor of claim 1, wherein: The part, at which the fixed plate (3) is connected with the top plate of the tower corner iron, is a double-layer clamping plate, which clamps the top plate of the tower corner iron.

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