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Landing buffer seat with multiple layers of internal and external air bags

A multi-layer airbag and airbag technology, which is applied in the field of manned aerospace vehicles, can solve problems such as high peak value, low reliability, and threats to the safety of passengers, and achieve the effects of weakening peak value, improving reliability, and extending pulse width

Inactive Publication Date: 2015-06-24
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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  • Landing buffer seat with multiple layers of internal and external air bags
  • Landing buffer seat with multiple layers of internal and external air bags
  • Landing buffer seat with multiple layers of internal and external air bags

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: Referring to the accompanying drawings, a landing buffer seat with inner and outer multilayer airbags includes multilayer airbags wrapped layer by layer from the inside to the outside, and each layer of airbags is equipped with a puller 5 that keeps its shape after inflation. 7. There are multiple vent holes opened by bursting membranes on the wall of the airbag, and the total cross-sectional area of ​​the vent holes 3 of the outer airbag 2 is smaller than the total cross-sectional area of ​​the vent holes of the inner airbag 1 layer by layer, and the outer airbag 2 The opening pressure of the bursting membrane is lower than the opening pressure of the inner airbag 1's bursting membrane layer by layer.

Embodiment 2

[0011] Embodiment 2: As described in Embodiment 1, the inner and outer multi-layer airbag landing cushion seat, the multi-layer airbag is two layers of inner layer airbag 1 and outer layer airbag 2 .

Embodiment 3

[0012] Embodiment 3: The inner and outer multi-layer air bag landing buffer seat as described in embodiment 1 or 2, the multi-layer air bag is made of fiber cloth with high strength and good airtightness.

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Abstract

The invention belongs to the technical field of manned space flight aircrafts, and relates to a landing buffer device, in particular to a landing buffer seat with multiple layers of internal and external air bags. The landing buffer seat comprises the multiple layers of air bags which are arranged layer by layer from inside to outside in a wrapping mode. Pull cloth (5 and 7) is arranged in each air bag and can keep the shape of the air bag after the air bag is inflated, communication holes (6) are formed in the pull cloth (5 and 7), multiple exhaust holes opened by blasting membranes are formed in the wall of each air bag, the total cross sectional area of the exhaust holes (3) of the outer-layer air bag (2) is smaller than that of the exhaust holes of the inner-layer air bag (1) layer by layer, and the opening pressure of the blasting membranes of the outer-layer air bag (2) is smaller than that of the blasting membranes of the inner-layer air bag (1) layer by layer. By means of the landing buffer seat, the pulse width of impulse loads can be greatly expanded, and the peak value of the impulse loads can be greatly decreased. Because the multiple layers of air bags are arranged, damage to any air bag will not lead to the complete failure of the landing buffer seat, and accordingly the reliability of the landing buffer seat 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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IPC IPC(8): B64D25/115
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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