Title:
CHEMICAL OXYGEN SELF-RESCUE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/128429
Kind Code:
A1
Abstract:
Disclosed is a chemical oxygen self-rescue device, comprising a breathing assembly (1), an oxygen generation assembly (2) and a gas bag (3) sequentially communicated with each other, wherein the oxygen generation assembly comprises an oxygen generation agent tank (21), a gas discharge valve (23) and an oxygen candle (22); the gas discharge valve is arranged on a component above an oxygen generation agent (213) in the oxygen generation agent tank and below a breathing end of the breathing assembly, and the opening and closing of the gas discharge valve are controlled by means of an inflated volume of the gas bag; and a heat dissipation assembly and the oxygen generation agent are arranged in the oxygen generation agent tank, the heat dissipation assembly comprises a vent pipe (211) and a heat dissipation frame (212), the vent pipe is in communication with the breathing assembly and the oxygen generation agent tank, the heat dissipation frame is arranged in the oxygen generation agent tank, and the oxygen generation agent tank is divided, by the vent pipe and the heat dissipation frame, into a plurality of accommodation spaces for the loading of the oxygen generation agent. The chemical oxygen self-rescue device reduces the resistance to breathing same, lowers the temperature of breathed gas, and improves the utilization rate of the oxygen generation agent.
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Inventors:
WEN XINGUO (CN)
LIU XIAOWEI (CN)
ZHANG LONG (CN)
DING HAO (CN)
LI ZHI (CN)
LIU XIAOWEI (CN)
ZHANG LONG (CN)
DING HAO (CN)
LI ZHI (CN)
Application Number:
PCT/CN2018/111920
Publication Date:
July 04, 2019
Filing Date:
October 25, 2018
Export Citation:
Assignee:
SHAANXI STAR EXPLOSION SAFETY POLYTRON TECH INC (CN)
International Classes:
A62B7/08; A62B9/02; A62B21/00
Foreign References:
| CN85103668A | 1986-11-19 | |||
| CN104436456A | 2015-03-25 | |||
| CN108211151A | 2018-06-29 | |||
| CN107998528A | 2018-05-08 | |||
| SU1677895A1 | 1997-07-27 | |||
| GB1443663A | 1976-07-21 | |||
| US3650269A | 1972-03-21 |
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