gas control valve

Abstract

The invention discloses a gas control valve. The gas control valve comprises a valve body and a valve cover connected with the valve body, and further comprises a safety valve arranged on the valve body, wherein the safety valve comprises a safety valve body and a safety valve core component; when the internal pressure of the valve body is higher than a set value, the pressure is reduced through a clearance between the safety valve body and the safety valve core component; the valve body is provided with a first gas passage and a second gas passage; the valve cover is provided with a third gas passage; a sealing gasket is arranged at the intersection between the first gas passage and the second gas passage, as well as between the first gas passage and the third gas passage; and the first gas passage and the second gas passage, as well as the first gas passage and the third gas passage, are selectively communicated through matching between the sealing gaskets and the valve body, as well as between the sealing gaskets and the valve cover. As the safety valve is arranged on the gas control valve, when the internal pressure is overlarge, gas can be effectively discharged; and the gas control valve has the advantages of simple structure, convenience in assembly and disassembly, excellent leak tightness, lower cost and more safety in use.

Description

technical field [0001] The invention relates to the field of medical equipment, in particular to a gas control valve. Background technique [0002] The anesthesia ventilator is an important medical device for general anesthesia for patients during surgery in the hospital. Its main function is to inhale anesthetics, supply oxygen, and provide assisted or controlled breathing for patients. [0003] The anesthesia vaporizer is an important component of the anesthesia machine, which provides a stable and precise concentration of anesthesia mixed gas to the patient through the anesthesia machine. [0004] The anesthesia ventilator is connected to the anesthesia vaporizer through a gas control valve. When the anesthesia vaporizer is not connected, the anesthesia ventilator delivers gas to the patient through the gas control valve. At this time, the gas control valve should ensure that the gas does not leak out, and the gas flowing through the gas control valve has no or very litt...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the gas cannot be discharged when the outlet end of the traditional gas control valve is blocked, and to provide a gas control valve, which can discharge the gas when the internal pressure is too high by setting a safety valve on the gas control valve. Effective discharge, and has the advantages of simple structure, convenient disassembly and assembly, good sealing, low cost and safer use

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