Underwater free breathing system

Abstract

The invention relates to the field of underwater breathing apparatuses, in particular to an underwater free breathing system. A person takes a diving mask and dives into water, a floating frame is immersed in the water, sinking into the water is avoided under the action of a floating airbag, and a first intake pipe and a first exhaust pipe are exposed out of the water surface; fresh air passes through the first intake pipe, a second intake pipe 52 and a third intake pipe 53 to enter an intake cavity, enters the diving mask through a stretchable air guide pipe in an accelerated manner under theaction of a suction fan and allows the person to have a breath; and exhaled exhaust gas enters the stretchable air guide pipe, enters an exhaust cavity through the stretchable air guide pipe in an accelerated manner under the action of an exhaust fan, and is discharged into the atmosphere through a third exhaust pipe, a second exhaust pipe and a first exhaust pipe.

Description

Technical field [0001] The invention relates to the field of underwater breathing apparatus, in particular to an underwater free breathing system. Background technique [0002] With the improvement of living standards, more and more people like diving, so scuba equipment is born to meet people's needs. There are currently two main types of scuba diving. When diving shallow (usually within 0.5m, generally called snorkeling or snorkeling), most of them are diving masks with snorkels. The length of the snorkels is limited and only People dive briefly and cannot breathe in the water for a long time. When diving deep (usually 4-5m), pumped air or artificial oxygen cylinders and breathing adjustment equipment are generally used. The overall equipment cost is extremely high and is not suitable for ordinary people. Therefore, a floating underwater breathing system has appeared. The structure is mainly that the air inlet pipe is on the water surface through the float, and the gas pipe i...

AI Technical Summary

Problems solved by technology

[0003] Looking back at the former device, there are also many problems: when diving to a certain depth, the mouth of the relevant personnel is occupied by practicing oral inhalation through the mouthpiece, and it is not the normal way for humans to use the nose to inhale, so corresponding procedures must be carried out. Fully trained to master

Furthermore, the waste is directly discharged into the water through the nasal cavity, and air bubbles are generated in the water. Because the waterproof design is too simple, only one waterproof cap is used, and only one waterproof treatment is performed. When the waves are too large, water is very easy to enter the air guide In pipes and breathing hoods, even breathing through the mouth can easily cause underwater personnel to choke on water

And because the water pours back into the air guide pipe, causing water accumulation, even if it does not enter the breathing mask, because the water has a blocking effect on the outside air, the underwater personnel still cannot absorb the outside air above the water surface, causing people to be unable to dive for a long time. Requires surfacing for air, the device's intended purpose is practically useless

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