A gas source for emergency breathing

Abstract

The invention belongs to the technical field of emergency lifesaving, and provides a gas source for emergency breathing, including a gas cylinder body (13), a blocking piece (12), a gas cylinder valve body (10), a gas cylinder breakdown mechanism and a firing mechanism; The gas cylinder body (13) is a high-pressure gas cylinder, and the blocking piece (12) is arranged on the mouth of the gas cylinder body (13) in a welding manner, and the blocking piece (12) is used to seal the high-pressure gas in the gas cylinder body (13); The gas cylinder valve body (10) is arranged on the outside of the blocking piece (12), and one end of the gas cylinder valve body (10) is in sealing connection with the mouth of the gas cylinder body (13) outside the blocking piece (12), and the other end is sequentially connected with the gas cylinder body (13). The bottle puncture mechanism and the firing mechanism are sealed and connected; the firing mechanism is used to trigger the action of the gas cylinder puncture mechanism to pierce the blocking piece (12) and release the high-pressure gas in the gas cylinder body (13).

Description

technical field [0001] The invention generally belongs to the technical field of emergency life-saving, and particularly relates to an emergency breathing air source. Background technique [0002] At present, the commonly used oxygen supply system is generally equipped with a set of high-pressure gas cylinders, which is used as an emergency gas source for pilots during ejection and parachuting. The high-pressure gas cylinder and the cylinder valve and the valve are sealed with a sealing ring and other structures to achieve gas sealing, but the gas leakage problem cannot be completely avoided, and mechanical effects such as vibration during the flight of the aircraft will aggravate the gas leakage. Therefore, the emergency gas source needs to be routinely inspected before and after each flight. In addition, when the gas pressure in the gas cylinder drops to the lower limit, the high-pressure gas cylinder needs to be supplemented with gas, which makes routine maintenance cumbe...

AI Technical Summary

Problems solved by technology

High-pressure gas cylinders, cylinder valves, and valves are sealed by sealing rings and other structures, but the problem of gas leakage cannot be completely avoided. At the same time, mechanical effects such as vibration during aircraft flight will aggravate gas leakage.

Therefore, routine inspection of the emergency gas source is required before and after each flight. In addition, when the gas pressure in the gas cylinder drops to the lower limit, it is necessary to replenish the high-pressure gas cylinder, resulting in cumbersome daily maintenance.

[0003] In addition, emergency respirators are required in fields such as coal mine lifesaving, and the existing respirators are also supplied by high-pressure gas cylinders, which also have problems such as high leakage rate and cumbersome daily maintenance.

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