Automatic flow regulating device for airborne oxygen production equipment

Abstract

The invention discloses an automatic flow regulating device for airborne oxygen production equipment. The automatic flow regulating device comprises a housing, a lung type valve component, a rocker arm component and a film assembly, wherein an oxygen inlet connected with an oxygen production system and a mask air intake duct communicating with a breathing mask are arranged on the housing; an air intake cavity, an air storage cavity and a balancing cavity are arranged in the housing; the air intake cavity communicates with the mask air intake duct; the air intake cavity communicates with the air storage cavity via the lung type valve component; the lung type valve component communicates with the oxygen inlet; the air storage cavity is separated from the balancing cavity via the film assembly; and transmission between the film assembly and the lung type valve component is realized through the rocker arm component. According to the automatic flow regulating device, a pressure difference between the air storage cavity and the balancing cavity is sensed by the film assembly, and the intake of oxygen is controlled and regulated by the rocker arm component and the lung type valve component, so that the function of automatic flow regulation is realized; and the functions of automatic pressure regulation, overpressure protection, excess pressure stabilization, asphyxiation prevention and the like are realized by a corrugated pipe component, an excess pressure valve component, an air valve component and the like.

Description

technical field [0001] The invention relates to the field of aviation machinery, in particular to an automatic flow regulating device for airborne oxygen generators. Background technique [0002] Traditional mechanical flow regulators are large in size, inaccurate in pressure regulation, and poor in adaptability to environmental changes. "Intercepting" the fluid in the channel cannot control the size change of the flow, let alone adjust the flow independently according to the change of the surrounding environment. [0003] At present, most of the technologies that can realize the automatic flow adjustment function in the market adopt: adding feedback electronic components such as flow sensors or position sensors to the original mechanical structure, transmitting the test data of the feedback electronic components to the automatic control device, and then linking the mechanical transmission parts through the automatic control device. Control the size of traffic. Although th...

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Problems solved by technology

Although this method can also achieve the function of self-adjusting flow, the failure rate of electronic equipment is much higher than that of mechanical mechanisms, and the additional electronic and electrical components increase additional volume and energy consumption, which can only be used for short-life or regular maintenance. Maintenance of replacement equipment

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