Diaphragm check valve

A technology of one-way valves and diaphragms, which is applied in the direction of control valves, valve devices, and functional valve types, etc., and can solve the problems of complex structure, inconvenient installation, and high cost of one-way valves

Inactive Publication Date: 2017-06-16
BEIJING AEONMED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the above-mentioned one-way valve is complicated, the installation is inconvenient, and the cost is relatively high.

Method used

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  • Diaphragm check valve

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Embodiment Construction

[0016] The present invention will be further described in detail with the accompanying drawings and specific embodiments.

[0017] Such as figure 1 As shown, a diaphragm check valve, the check valve includes a valve body 1, the valve body 1 includes a gas inlet 11 and a gas outlet 12, a number of small holes are set between the gas inlet 11 and the gas outlet 12 3 connected; the valve body 1 also includes an elastic diaphragm 2, the elastic diaphragm 2 is fixed on the valve body 1, and the elastic diaphragm 2 covers several small holes 3 on the gas outlet side to close several small holes .

[0018] The elastic diaphragm 2 is an umbrella-shaped diaphragm, the umbrella cover 21 covers several small holes, and the umbrella handle 22 is fixed on the valve body.

[0019] The material for making the elastic diaphragm 2 is silica gel.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather...

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Abstract

The invention discloses a diaphragm check valve. The check valve comprises a valve body (1), the valve body (1) comprises a gas inlet (11) and a gas outlet (12), and a plurality of small holes communicated with each other are formed in the position between the gas inlet (11) and the gas outlet (12); the valve body (1) further comprises an elastic diaphragm (2), the elastic diaphragm (2) is fixed on the valve body (1), and the elastic diaphragm (2) covers the plurality of small holes (3) at the air outlet side to seal the plurality of small holes. The diaphragm check valve is simple in overall structure, convenient to install, small in opening pressure, and good in sealing performance and can be mounted at any angles.

Description

technical field [0001] The invention belongs to the technical field of anesthesia machine gas control, in particular, the invention relates to a diaphragm check valve. Background technique [0002] One-way valve is also called check valve or check valve. It is used to prevent the reverse flow of oil flow in the hydraulic system, or to prevent the reverse flow of compressed gas in the pneumatic system. The one-way valve is an important part of the gas circuit of the anesthesia machine. Its main function is to prevent the reverse flow of gas and ensure the normal operation of the anesthesia machine. At present, there are several types of check valves used in anesthesia machines on the market, including gravity check valves, elastic diaphragm check valves and diaphragm check valves. However, the structure of the above-mentioned one-way valve is complex, installation is inconvenient, and the cost is relatively high. Contents of the invention [0003] The object of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/14
CPCF16K15/148
Inventor 徐学利蒋保成
Owner BEIJING AEONMED
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