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Buffer type differential anti-falling device

A technology of anti-falling device and speed difference, which is applied in the field of safety tools, can solve the problems that the cushioning force of the buffering speed difference anti-falling device is not easy to control, the size of the friction force is not easy to control, and the braking effect is unstable, so as to improve the firmness and safety. Stability, good braking effect, small vibration effect

Active Publication Date: 2020-03-17
JINHUA JECH TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. At present, the speed differential fall arresters on the market all use a pawl and a ratchet phase limit to realize the braking function. Since a pawl is used for braking, all the gravity will be applied to the pawl. At this time The impact force on the pawl is large, its braking effect is unstable, it is easy to slip or the pawl breaks, and its safety is low
2. At present, the brake friction plate and the reel of the speed difference anti-fall device on the market are fixed together with screws. The friction resistance of the friction plate is completely determined by the tightening force of the screw. The friction force is not easy to control, resulting in a buffered speed difference. The buffer force of the fall arrester is not easy to control

Method used

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Embodiment Construction

[0032] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0033] Such as Figure 1-9 As shown, a speed difference anti-dropping device includes a casing 1, a frame body 2, a winding device 3, an elastic reset member 4 and a braking device 5, wherein the casing 1 includes a first casing 11 and a second casing 11. Housing 12, the first housing 11 is a metal shell, and the second housing 12 is also a metal shell. The first housing 11 and the second housing 12 are connected together by screws to form an internal hollow The casing; the frame body 2 is located inside the casing 1, the frame body 2 is an n-shaped metal plate, and a joint 22 is connected to the top of the frame body 2, and a circle is arranged at the upper end of the joint ...

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PUM

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Abstract

The invention discloses a buffer type differential anti-falling device. The buffer type differential anti-falling device comprises a shell provided with an opening, a frame body arranged in the shell,a winding device arranged on the frame body and capable of winding up a rope body when rotating forwards and unwinding the rope body when rotating backwards, and an elastic reset part used for driving the winding device to rotate forwards. A plurality of pawls are arranged on a fixed member; when a braking device rotates, the plurality of pawls are synchronously thrown out to be in contact with ratchet teeth, so that the braking speed is high and the braking reliability is high; and the plurality of pawls can equally share impact force during braking, so that the impact force on the interiorof a differential is small and the stability of all parts is high.

Description

technical field [0001] The invention belongs to the technical field of safety tools, and in particular relates to a buffer type speed difference arrester. Background technique [0002] The speed differential fall arrester can quickly brake and lock falling objects within a limited distance, which is suitable for cargo hoisting and protects the life safety of ground operators and the damage of suspended workpieces and objects. It is suitable for the safety protection against the accidental fall of the suspended workpiece when the crane is hoisting, and can effectively protect the life safety of ground operators and the damage of the suspended workpiece. It is used in metallurgical automobile manufacturing, petrochemical industry, engineering construction, electric power, shipbuilding , communications, pharmaceuticals, bridges and other high-altitude workplaces. [0003] 1. At present, the speed differential fall arresters on the market all use a pawl and a ratchet phase limi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C15/00F16D41/18B66C15/02
CPCB66C15/00F16D41/18B66C15/02A62B35/0093
Inventor 冯铭
Owner JINHUA JECH TOOLS CO LTD
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