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A mechanical descender

A kind of slow descender, mechanical technology, applied in life-saving equipment, building rescue and other directions, can solve the problems of wasting escape time and increasing design difficulty.

Inactive Publication Date: 2011-12-28
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the use-type descending device is divided into one-way working type and two-way working type. The one-way working type needs to retract the escape rope after one person uses it, wasting precious escape time
The two-way type can rely on the two ends of the escape rope to alternate up and down to avoid the time of returning to the rope, but the design difficulty is greatly increased

Method used

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  • A mechanical descender
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Embodiment Construction

[0028] The present invention is described in further detail below in conjunction with accompanying drawing:

[0029] see figure 1 , figure 2 , image 3 , in the process of people escaping from high-rise buildings, in order to achieve the effect of falling at a constant speed, it is necessary to balance the body's gravity and moment of gravity with other forms of force and moment, and at the same time convert the gravitational potential energy into other forms of energy. Considering that this work is mainly used in emergencies such as fires or earthquakes, in order to ensure its reliability, it adopts the principle of purely mechanical centrifugal braking, uses friction to balance the body's gravity, and finally converts the human's gravitational potential energy into frictional internal energy. Force transmission and energy conversion process such as figure 1 and figure 2 .

[0030] 2) Transmission scheme

[0031] This work is composed of a transmission system and a br...

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Abstract

The invention aims at providing a high-altitude self-rescue apparatus which is safe and quick, convenient to use and has low cost for high-rise residential buildings and office buildings. The high-altitude self-rescue apparatus can be used for realizing the return-rope-free bidirectional escape through reciprocating movement at both ends of a steel wire rope; and breaking can be realized only through mechanical friction so as to ensure the normal work of the high-altitude self-rescue apparatus when a building has power failure. A transmission wheel series with an eccentric moving block can guarantee that relative sliding does not happen between the steel wire rope and the main transmission wheel, namely the transmission is effective. A centrifugal braking system of the descent control device can descend both children and adults at a constant speed.

Description

Technical field: [0001] The invention belongs to the field of fire protection, and relates to an escape device, in particular to a mechanical descending device. Background technique: [0002] Throughout the current fire escape equipment industry, there are many types of high-altitude lifesaving products at home and abroad, including escape umbrellas, fire escape ladders, portable escape devices, etc. Generally speaking, foreign research in this area is ahead of domestic research, and domestic research started relatively late, but It has also developed rapidly in recent years. [0003] The main components of the escape umbrella are the canopy, the guide umbrella, the umbrella rope, the strap system, the umbrella opening parts and the umbrella bag, etc. The escape umbrella is a kind of escape device that uses air resistance and relies on an expandable aerodynamic reducer that is inflated relative to air movement to make people or objects fall safely from the air to the ground...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62B1/10
Inventor 张超丁鑫张宇迪范红艳肖雨赵卫军奚延辉
Owner XI AN JIAOTONG UNIV
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