Breathing air supply device

Abstract

The invention discloses a hollow passage type breathing air supply device additionally provided with a liquid and air pumping and discharging device. A base of a separable bin cage is additionally arranged at the end, close to a human body, of a hollow passage, a top cover of the separable bin cage is additionally arranged at the end, far away from the human body, of the hollow passage, and preferably, components between the base and the top cover are contained in a containing bin formed when the base and the top cover of the separable bin cage in a storage sate are combined; preferably, the liquid and air pumping and discharging device is arranged in the containing bin, more preferably, the liquid and air pumping and discharging device is arranged at the axis of the containing bin, and a bent pipe is coiled in the peripheral space in the separable bin cage during storage; corresponding parts of the base are improved to form a dual-purpose cover of the base and a human body mask, preferably, the arrangement of the top cover and a floating box body is comprehensively adjusted, the gravity center is adjusted, and the wading aligning capacity is formed; preferably, the near-human-body end and the far-human-body end are connected in series or the near-human-body end is connected in parallel with an expansible switchable interface, so that the device can be expanded into a multi-purpose type; preferably, a multipurpose box integrating the floating box body and a filter box is additionally arranged; a device or a structure for manually controlling air inflow and outflow is additionally arranged for increasing the safety; and a new mode is provided for fire escape.

Description

technical field [0001] The technical field of the present invention is a device for providing breathing air supply conditions to a human body. Especially in the field of breathing air supply devices. Background technique [0002] Aerobic respiration is a basic life feature of human existence. The human body is surrounded by the atmospheric environment most of the time, and human beings can breathe freely. The mouth directly inhales fresh air from the atmosphere, and the human body uses the oxygen contained in it to complete the metabolism of the human body. When the human body exhales, the human body also uses the nose most of the time, and occasionally uses the mouth to expel the waste gas generated from the body into the atmosphere. , thus completing a breathing process. [0003] When in this normal atmospheric environment, the human body does not need a breathing air supply device, so the breathing air supply device is generally in a standby state. [0004] The environ...

AI Technical Summary

Problems solved by technology

[0046] In the first case, the position of the open end remains unchanged, the boundary line changes, and an unfavorable situation occurs

For example, when this kind of breathing air supply device is used in a diving environment, when a normal breathing hollow passage has been established, a wave surges in and overflows the open port, which is equivalent to a change in the boundary, and an unfavorable situation occurs, that is, an accident The liquid entering the hollow passage will reach the mouth and nose of the human body along with the air intake pipe. If it is not pumped out, it will affect human breathing and may also endanger life. At this time, the breathing air supply device is in a disadvantageous situation and cannot be used. use

[0047] In the second case, the boundary line does not move, and the movement of the open port creates an unfavorable situation

[0078] When the hollow pipeline in the breathing air supply device is a one-way air inlet and outlet pipeline and a separate pipeline, the one-way air inlet and outlet valve has the highest switching frequency, and in order to reduce the resistance of the air inlet and outlet, the inlet and outlet valve is also the most Lightweight, so damage may occur due to various reasons or accidents that cannot function normally. In the old technology, there is no backup safety design when the inlet and outlet valves cannot work normally when an accident occurs.

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