Expiratory valve system
A technology of exhalation valve and valve body, which is applied in the field of exhalation valve system, can solve the problems of high cost, limited scope of application, and different reliability, and achieve high versatility, high control sensitivity and accuracy, and guaranteed working accuracy Effect
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[0022] Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.
[0023] Fig. 1 shows a schematic structural diagram of an exhalation valve according to a preferred embodiment of the present invention. As can be seen from FIG. 1, the exhalation valve of this preferred embodiment includes the following parts: a valve body 1, a valve core 2, a valve cover 4, an electric control regulating device, a one-way valve 5 and a connecting pipe 12. The valve core 2 is installed in the valve body 1, and the valve core 2 is fixed in the valve body 1 with the valve cover 4, and preferably, a gasket 3 is provided between the valve core 2 and the valve cover 4 to ensure that there is a gap between the valve core 2 and the valve cover 4 The air tightness; the center of the valve core 2 is formed with an opening 2a, this opening 2a is opposite to the center hole of the gasket 3 and the through hole 4a on the top of the valve cover 4, the air passa...
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