an oxygen mask

Abstract

The invention relates to the field of oxygen supply masks, and discloses a novel oxygen supply mask, comprising a mask main body, an oxygen delivery bellows, a microphone and a fixing assembly; both sides of the main body of the mask are provided with inhalation through holes and exhalation through holes, and the inhalation There is an inspiratory valve on the air passage hole, one end of the oxygen delivery bellows is connected to the oxygen system on the machine, and the other end of the oxygen delivery bellows is connected to the main body of the mask through the inspiratory valve; an exhalation valve is set on the exhalation through hole; The fixing component is fixed on the human face. The invention enables the microphone to transmit electrical signals without punching holes by designing the L-shaped stainless steel conductive bracket, thereby improving the sealing performance of the microphone. In addition, the invention reduces the weight of the mask, has light overall weight, small breathing resistance, large instantaneous flow rate, reasonable hanging mechanism, high overload resistance, and is comfortable and convenient to wear.

Description

technical field [0001] The invention relates to the field of oxygen supply masks, in particular to a novel oxygen supply mask. Background technique [0002] The main function of the oxygen supply mask is to separate the exhalation trachea from the surrounding atmosphere, so that the gas output by the oxygen supply system can be introduced into the human respiratory organs, so as to maintain the proper oxygen concentration of the inhaled gas and prevent the harm of high-altitude hypoxia to the human body. With the development of the times and the advancement of science and technology, the existing structure and technology of oxygen supply masks can no longer meet the current needs. The existing communication microphone (microphone) is built into the mask cavity, and the shape characteristics of the microphone itself are generally used. Fix it with the screw, punch a hole on the mask or the oxygen delivery tube to send the microphone wire out, so that the overall sealing of th...

AI Technical Summary

Problems solved by technology

With the development of the times and the advancement of science and technology, the existing structure and technology of oxygen supply masks can no longer meet the current needs. The existing communication microphone (microphone) is built into the mask cavity, and the shape characteristics of the microphone itself are generally used. Fix it with the screw, make a hole on the mask or oxygen tube to send the microphone wire out, so that the overall sealing of the oxygen supply mask is poor

In addition, the exhalation resistance of the existing exhalation valve is relatively large, pilots who wear masks for a long time are prone to respiratory fatigue, and the comfort of wearing oxygen masks is poor

The exhalation valve in the existing oxygen supply mask uses a pressurized pipeline to induce air to the lower cavity of the exhalation valve to form a counter pressure. Pipeline, these pressurization methods lead to a large weight of the entire mask, which will also affect the wearing comfort of the oxygen supply mask

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