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A speed difference anti-fall device with reverse locking mechanism for power tower work at height

A technology for power towers and high-altitude operations, applied in safety belts, life-saving equipment, etc., can solve the problems of being unable to grasp, the speed of pulling out the safety rope of the fall arrester, and the long distance between the operator and the tower, etc., to save time.

Active Publication Date: 2022-07-26
DONGFANG ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When working on the power tower, fix the hook at the top of the fall arrester on the fixed object, and hang the hook at the bottom on the operator. At this time, the operator can climb and move on the tower. When the staff makes a mistake When falling, the pull-out speed of the safety rope in the safety device will be significantly accelerated, and the internal pawl will block the fast-rotating ratchet, so as to realize the automatic locking of reverse rotation; but when the operator falls the distance For a long time, the operator will be in a suspended state at this time. Due to the long distance of falling, the distance between the operator and the iron tower is relatively long. Living on the top of the iron tower, you can only seek rescue, resulting in reduced work efficiency

Method used

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  • A speed difference anti-fall device with reverse locking mechanism for power tower work at height
  • A speed difference anti-fall device with reverse locking mechanism for power tower work at height
  • A speed difference anti-fall device with reverse locking mechanism for power tower work at height

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] see Figure 1-Figure 9 As shown, a speed difference drop arrester for power towers with a reverse locking mechanism for high-altitude operations is provided, including a drop arrester 100 and a riser 200 disposed on the side of the drop arrester 100. The drop arrester 100 includes a housing 110 and the mounting plate 120, the inner wall of the housing 110 is provided with a mounting shaft 111 and a fixed shaft 112, the outer wall of the fixed shaft 112 is rotatably connected with a pawl 113, the pawl 113 has a "V"-shaped structure, and the side wall of the pawl 113 is connected There is a tension spring 114, one end of the tension spring 114 is connected with the side wall of the housing 110, the top of the housing 110 is connected with a first hook 115, the mounting plate 120 is in a circular ring structure, and the inner ring of the mounting plate 120 is provided with The shaft 111 rotates and connects the shaft ring, the outer ring of the mounting plate 120 is wound ...

Embodiment 2

[0060] In order to improve the stability of the device and prevent the connecting rope 121 from shaking greatly, the following improvements are made on the basis of Embodiment 1:

[0061] see Figure 10 As shown in the figure, the bottom of the casing 110 is located on the outer circumference of the connecting rope 121, and a telescopic tube 150 is provided. The telescopic tube 150 is composed of a plurality of circular tubes that are slidably connected. It is sleeved on the outer wall of the driving member 224, and the transmission rod 151 is provided with an elastic sleeve 152. The elastic sleeve 152 is preferably made of rubber material. A certain frictional force is generated between the parts 224, and the elastic sleeve 152 is sleeved on the outer wall of the driving part 224. When the driving part 224 is pulled, the driving part 224 rotates to drive the elastic sleeve 152 to move, and the elastic sleeve 152 drives the telescopic tube through the transmission rod 151. 15...

Embodiment 3

[0063] In order to realize the storage of the driving member 224, the following improvements are made on the basis of Embodiment 1:

[0064] see Figure 11 As shown, the bottom of the top plate 143 is provided with a baffle 160, the top of the fixed block 141 is provided with a sliding plate 161, the surface of the sliding plate 161 is inclined, and the sliding plate 161 is arranged in the baffle 160. 224 is inserted into the surface of the sliding plate 161, and then the buffer spring 142 drives the baffle 160 to clamp the driving member 224 through its own elasticity. When the buffer spring 142 is deformed, the distance between the baffle 160 and the fixed block 141 becomes longer. The driving member 224 slides down through the surface of the buffer spring 142 according to its own weight, so that the driving member 224 will not affect the construction of the operator under normal conditions, and the driving member 224 will only fall when the operator falls.

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PUM

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Abstract

The invention relates to the technical field of anti-fall, in particular to a speed difference anti-fall device with a reverse locking mechanism for high-altitude operation of an electric power tower. It comprises an anti-falling device and an ascending device arranged on the side of the anti-falling device. The anti-falling device includes a casing and a mounting plate. When the operator is in the suspended state, he pulls the driving part, the driving part drives the rotating plate to rotate through the turntable, the rotating plate drives the installation plate to rotate through the rotating ring, and the installation plate rotates to rewind the connecting rope, thereby driving the operator to ascend , so that there is no need to wait for rescuers, saving time, and solving the problem that when the operator falls for a long distance, the distance between the operator and the iron tower is long due to the long falling distance, and the current fall arrester does not The lifting effect cannot be achieved, so that the operator cannot grasp the iron tower at the top, resulting in the problem of reduced work efficiency.

Description

technical field [0001] The invention relates to the technical field of anti-fall, in particular to a speed difference anti-fall device with a reverse locking mechanism for high-altitude operation of an electric power tower. Background technique [0002] The fall arrester, also called the speed differential, is a protective product. It can quickly brake and lock falling objects within a limited distance, which is suitable for cargo hoisting and high-altitude operations, which can prevent the damage of the hoisted workpiece and protect the life safety of operators. [0003] When working on the power tower, fix the hook at the top of the anti-drop device on the fixed object, and hang the hook at the bottom on the operator's body. At this time, the operator can climb and move on the tower. When the staff makes a mistake When falling, the pull-out speed of the safety rope in the fall arrester will be significantly faster, and the internal pawl will catch the fast-rotating ratche...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A62B35/04
CPCA62B35/04A62B35/0025
Inventor 柳水莲于新叶马云飞周浩洁夏竹王建功
Owner DONGFANG ELECTRONICS