Safety helmet type individual escaping device for gas explosion under coal mine

Abstract

The invention relates to a safety helmet type individual escaping device for gas explosion under a coalmine. The safety helmet type individual escaping device comprises an automatic oxygen respirator, a safety helmet and a control part. A shell of the automatic oxygen respirator is internally provided with an oxygen cylinder, a filter, a pressure reducing valve, a one-way valve, a CO2 absorbent and the like; an electromagnetic valve is connected with a leather bag; a gas duct is connected with the one-way valve which is connected a central blank pipe in the CO2 absorbent; the leather bag is folded in a upper cover; and the bottom of the shell is enclosed. The safety helmet comprises a helmet body, a helmet lining, a breather pipe, a breather hose and the like; the breather pipe is connected with an output pipe of the electromagnetic valve on the oxygen cylinder; and the breather hose is connected with a face contacting mask. In the invention, an early warning signal sent by an early warning network is received through a super-regenerative type receiver module, and is decoded and amplified to an on-off controller to control the opening of the electromagnetic valve which opens the oxygen cylinder and is connected with the face contacting mask through the breather pipe for supplying oxygen; meanwhile a buzzer HA gives out an alarming sound; and a user manually pulls down the face contacting mask to mouth and nose positions. The invention gains precious time for escaping.

Description

technical field [0001] The invention relates to a safety helmet type individual escape device for gas explosion in a coal mine. Background technique [0002] Due to the rapid economic development, the demand for energy is also increasing rapidly. As a country that uses coal as the main raw material, the amount of coal mining is also increasing, so coal mine safety accidents also occur frequently and cause a large number of casualties. After analyzing a large amount of data on mine disaster sites and casualties, it was found that more than 90% of the deaths in underground work were caused by the inhalation of carbon monoxide gas after the gas explosion. [0003] There are life-saving cabins under some large mines. As long as the underground personnel can enter the life-saving cabin smoothly before and after the gas explosion accident, there will be no danger to their lives. There is no way for the device to save itself in a short time. [0004] For a long time, the isolatio...

AI Technical Summary

Problems solved by technology

However, the response time of these "mini" products is as long as 1 to 2 minutes, and the sensitivity level is poor.

[0008] 2. Imported products with high sensitivity are expensive to more than 1,000 yuan. It is obviously meaningless to promote such products as accessories for individual equipment

[0009] 3 Pressure and vibration sensors will also cause malfunctions due to vibration during work, the impact of on-site equipment, and falling objects. It is conceivable how workers can produce with peace of mind, and each misoperation will cause psychological damage to them. how long will it take to fix

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