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Multilayered airbag landing buffering seat

A multi-layer airbag and seat technology, applied in the field of manned aerospace vehicles, can solve the problems of high peak value, low reliability, threatening the life safety of occupants, etc., and achieve the effects of weakening the peak value, improving reliability and extending the pulse width.

Inactive Publication Date: 2015-07-15
SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this invention is that its single-layer structure does not extend the pulse width of the impact load enough, the peak value is still high, and the reliability is not high. Once the airbag is damaged, it will seriously threaten the safety of the occupants.

Method used

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  • Multilayered airbag landing buffering seat
  • Multilayered airbag landing buffering seat
  • Multilayered airbag landing buffering seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: see attached figure 2 , 3 , 4, a kind of multilayer airbag landing buffer seat is characterized in that: it comprises the multilayer airbag (1,2) stacked up and down, and each layer of airbag (1,2) inside is all provided with after inflating and makes it keep shaped cloth (5), the cloth (5) is provided with communicating holes (6), and each layer of airbags (1, 2) is provided with a plurality of vent holes (3) opened by bursting membranes, And the total cross-sectional area of ​​the exhaust holes (3) of each layer of airbags (1, 2) is not equal.

Embodiment 2

[0011] Embodiment 2: The multi-layer airbag landing buffer seat according to claim 1 as described in embodiment 1 is characterized in that: the multi-layer airbag has two layers of upper airbag (1) and lower layer airbag (2).

[0012] The multi-layer airbag landing buffer seat according to claim 1 or 2 is characterized in that: the opening pressures of the bursting membranes of the airbags (1, 2) of each layer are not equal.

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Abstract

The invention belongs to the technical field of manned space flight aircraft and particularly relates to a landing buffering device. A multilayered airbag landing buffering seat is characterized by comprising a plurality of layers of airbags (1, 2) which are overlapped up and down; all the airbags (1, 2) are internally provided with stretching cloth (5) which keeps a shape after being inflated; a communication hole (6) is formed in the stretching cloth (5); all the airbags (1, 2) are provided with a plurality of exhausting holes (3) opened by blasting membranes; the total cross area of the exhausting holes (3) of all the airbags (1, 2) are not equal. Before a buffering process is started, all the airbags are fully filled with gas, and a passenger sits on the airbags and is fixed by a binding belt; in the buffering process, the blasting membranes of all the airbags (1, 2) are opened when pre-set pressure is achieved and the pressure is leaked at different speeds, so that the pulse width of an impact load is extended in a large scale, and the peak value of the impact load is weakened. The plurality of layers of airbags are arranged so that the landing buffering seat does not completely lose efficiency when any one airbag is damaged, and the reliability is improved.

Description

technical field [0001] The invention belongs to the technical field of manned aerospace vehicles, in particular to a landing buffer device. Background technique [0002] In order to ensure the safety of the occupants during the landing process of the manned space vehicle, it is necessary to use a buffer device to reduce the impact load on the occupants. Chinese patent ZL 200620052299.6 provides a seat with an exhaustable air bag as the main structure, and its structure is as attached figure 1 shown. The disadvantage of this invention is that its single-layer structure does not extend the pulse width of the impact load enough, the peak value is still high, and the reliability is not high. Once the airbag is damaged, it will seriously threaten the life safety of the occupants. Contents of the invention [0003] The purpose of the present invention is to provide a landing cushioning seat with better cushioning effect and more reliability. [0004] The technical solution of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64G1/60
Inventor 马红磊付文文张晓光肖艳华王健全祝郁刘炳坤刘志刚何新星阚广悍
Owner SCI RES TRAINING CENT FOR CHINESE ASTRONAUTS
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