INTEGRAL TYPE OXYGEN MIXING CHANNEL FOR RESPIRATOR OXYGEN MIXING VALVE

Title:

INTEGRAL TYPE OXYGEN MIXING CHANNEL FOR RESPIRATOR OXYGEN MIXING VALVE

Document Type and Number:

WIPO Patent Application WO/2017/005031

Kind Code:

A1

Abstract:

The present invention relates to the field of respirator equipment. An integral type oxygen mixing channel for a respirator oxygen mixing valve comprises an adjustable piston sleeve (1), an adjustable piston (2), and a valve body (7); the adjustable piston sleeve (1) is connected to one end of the adjustable piston (2) by means of internal threads, and then is connected to the valve body (7) by means of external threads, wherein the other end of the adjustable piston (2) stretches into and penetrates through the valve body (7); two ends of the adjustable piston (2) are respectively and coaxially provided with a pair of sealing ring grooves (14); sealing rings (3) are arranged in the sealing ring grooves (14); a region of the adjustable piston (2) between the two sealing rings (3) is designed into a hollow cylindric shape, thereby forming an oxygen mixing channel (12). The structure can ensure the regulation controllability of mixed oxygen concentration from a mechanism, a debugging process of a production line is greatly simplified, that is, debugging can be completed by means of single-terminal regulation, the debugging difficulty can be greatly reduced, and the production efficiency is increased.

Inventors:

ZHANG XINJIAN (CN)
MA YINGDAN (CN)

Application Number:

PCT/CN2016/079340

Publication Date:

January 12, 2017

Filing Date:

April 15, 2016

Export Citation:

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Assignee:

BEIJING AEONMED CO LTD (CN)

International Classes:

A61M39/22

Foreign References:

CN104208794A	2014-12-17
CN200991483Y	2007-12-19
FR2887950A1	2007-01-05
JPH07158766A	1995-06-20
US4917137A	1990-04-17
CN101025235A	2007-08-29

Other References: