Descender

Abstract

Disclosed is a rod-type lowering device formed of a core axle (1) and an outer sleeve (2). An outer sleeve sliding rope hole (2.3) is provided on the outer sleeve, and a rope pressure ring (2.4) is also provided on the outer sleeve. The rope pressure ring can slide up or down under the manual control of a person and when the rope pressure ring is located at the position of the sliding rope hole, a wound rope (3.2) on the core axle is squeezed, the frictional force on the wound rope becomes greater, and a person (4) will stop being lowered. When the rope pressure ring moves upwards away from the position of the sliding rope hole below, the wound rope is no longer compressed, the frictional force on the wound rope lessens and the person will be lowered. The lowering device solves the problem of current rod-type lowering devices being inconvenient to use. Not only can the lowering device serve as a suspension tool during work such as cleaning or fitting the outer walls of a building, but the device can also serve as a suspension tool during tasks such as fire-fighting and rescue from buildings, emergency response or high altitude rescue, and serve as specialized equipment for airborne landing of personnel.

Description

technical field [0001] The invention relates to a descender, in particular to a descender controlled manually by using the weight of the human body as gravity. Background technique [0002] In the "Safety Technical Specifications for Seat-type Single-person Spreader for Building Exterior Wall Cleaning Operation", the types of descenders include: rod type, multi-plate type, 8-shaped ring type and shackle type. When the 8-shaped ring type descender or the shackle type descender is used, the operator must lift up the rope at the free end when landing; when the length of the rope is very long, the gravity is very strong, and sometimes there is even a problem that the rope cannot be lifted, giving Construction and operation bring great trouble. In addition, the use of the shackle-type descender is not recommended at present due to some safety problems. [0003] Although the stick type is very safe, in actual use, it is also very inconvenient for the operator to operate when des...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of inconvenient use of the rod-type descender, the present invention proposes a rod-type descender, which is composed of a mandrel and an outer sleeve. There is also a pressure rope ring, which can slide up and down under the control of human hands. When the pressure rope ring is at the position of the sliding rope mouth, it will squeeze the winding rope on the mandrel, the friction force of the winding rope will increase, and the human body will stop. Descending; when the pressure rope ring moves upward and leaves the position of the lower rope mouth, the rope is no longer compressed, the friction force of the rope is reduced, and the human body descends

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