Novel oxygen breathing apparatus

Abstract

The invention relates to a novel oxygen breathing apparatus, and relates to a breathing device. The novel oxygen breathing apparatus comprises a shell, an oxygen bottle, an air bag, a purifying tank,a cooling tank and a breathing three-way part. A pressure reducer communicates between the oxygen bottle and the air bag. An inspiration hose communicates between the breathing three-way part and thecooling tank, and an expiration hose communicates between the breathing three-way part and the purifying tank. The air bag further communicates with the purifying tank and the cooling tank. The noveloxygen breathing apparatus further comprises a plurality of one-way valves. The one-way valves include the first valve, and a movement switch which is controlled by the first valve is arranged on thefirst valve. An installation cover is arranged in the shell, one side of the air bag is fixedly arranged in the installation cover, and a press plate is fixedly arranged on the other side of the air bag. A driving mechanism is arranged in the shell, and is controlled by the movement switch to drive the press plate to move. The air bag of the novel oxygen breathing apparatus can contract or expandin a self-adaptive mode along with inspiration and expiration, and therefore the inspiration and expiration resistance of a user is reduced. In addition, the quantity of exhaust air which leaves the cycle in the expiration process can be adjusted so that different requirements for increasing the oxygen concentration, saving absorbing agents and the like can be met.

Description

technical field [0001] The invention relates to a breathing device, in particular to a novel oxygen respirator. Background technique [0002] Oxygen breathing apparatus is a respiratory protective device commonly used by firefighters or mine rescuers in the process of emergency rescue and disaster relief. It is mainly used in places where toxic and harmful gases and hypoxia exist. Oxygen respirators can spontaneously generate oxygen and process exhaled carbon dioxide, providing long-term respiratory protection for rescue and disaster relief personnel. [0003] The Chinese utility model patent with the existing authorized notification number CN201308733Y discloses an air bag positive pressure oxygen respirator, which includes a housing, a bracket, an air bag, an oxygen cylinder located at the lower part of the housing, and a decompression valve connected to the oxygen cylinder through a cylinder valve. Oxygen supply system composed of metering hole, manual supply valve and s...

AI Technical Summary

Problems solved by technology

[0004] However, when the user exhales, the exhaled gas needs to overcome the spring resistance of the multi-channel one-way valve, the filter resistance in the cleaning tank, and overcome the elastic force of the positive pressure spring to circulate, and the user's exhalation is more laborious.

Images