A double-brake back-and-forth controllable descending device

Abstract

A double-brake back-and-forth controllable descent device, including an outer shell and a lifting mechanism built in it, a double braking mechanism and a guide rope mechanism, the lifting mechanism and the double braking mechanism are linked to each other, and the lifting mechanism includes energy Convert the adjustment screw and set the outer peripheral buffer. The double brake mechanism includes an outer brake assembly, an inner brake assembly and a self-locking mechanism. The inner brake assembly is linked with the energy conversion adjustment screw of the lifting mechanism. The inner brake assembly There is a wedge wheel on the outer periphery, and a steel wire rope is wound on it for rolling friction. The self-locking mechanism can be movably resisted between the outer brake assembly and the housing. The brake assembly is in the semi-braking state to produce frictional damping, and the wire rope wrapped around the outer peripheral wedge wheel is tightened and locked. When the outer brake assembly is in the half-clutch state, the inner brake assembly locks the wire rope and the brake hub. In the state of friction, the friction force is poor so that the steel wire rope can be drawn out along the guide rope mechanism to achieve slow and uniform descent.

Description

technical field [0001] The invention relates to a descending device, in particular to a double-brake back-and-forth controllable descending device which can realize self-rescue, other rescue and air braking. Background technique [0002] There are more and more existing high-rise buildings, how to safely escape from high-rise buildings when encountering fires, earthquakes or sightseeing cable car mechanism accidents and hanging in the air is an urgent problem in the world today. One big problem is that the height that the fire-fighting aerial ladder can extend is limited, and the elevator cannot be used in case of a disaster. Various descending devices have been developed in the industry for escape from high-rise buildings. However, the existing descending devices have the following problems: (1) heavy and bulky, and inconvenient to carry; (2) unable to slow down and brake in the air Hovering; (3) The state and speed of descent cannot be controlled; (3) High-speed friction ...

AI Technical Summary

Problems solved by technology

[0002] There are more and more existing high-rise buildings, how to safely escape from high-rise buildings when encountering fires, earthquakes or sightseeing cable car mechanism accidents and hanging in the air is an urgent problem in the world today. A big problem is that the height of the fire-fighting ladder is limited, and the elevator cannot be used in case of a disaster

Various descending devices have been developed in the industry for escape from high-rise buildings. However, the existing descending devices have the following problems: (1) heavy and bulky, and inconvenient to carry; (2) unable to slow down and brake in the air Hovering; (3) The state and speed of descent cannot be controlled; (3) High-speed friction has a great impact on the loss of internal components, which constitutes a safety hazard

[0003] Due to the above defects, considering safety reasons, there are few practical applications of descending devices in reality. In order to solve the above technical problems, it is urgent to provide a descending device with high safety factor, strong controllability, practical and convenient

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