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1. (WO2010118693) PRESSURE CONTROL VALVE

Pub. No.:    WO/2010/118693    International Application No.:    PCT/CN2010/071796
Publication Date: Fri Oct 22 01:59:59 CEST 2010 International Filing Date: Fri Apr 16 01:59:59 CEST 2010
IPC: A61M 16/20
F16K 17/04
F16K 47/02
Applicants: BEIJING AEONMED CO., LTD.
北京谊安医疗系统股份有限公司
CHEN, Geng
陈庚
JIN, Chang
金昌
Inventors: CHEN, Geng
陈庚
JIN, Chang
金昌
Title: PRESSURE CONTROL VALVE
Abstract:
A pressure control valve includes: a tubular valve body, which has a bottom wall and side walls, wherein the bottom wall includes thereon an intake (4A) connected with a device, the pressure of which is to be limited, and there is at least one guide pin (21) on the side walls, and the tubular valve body has a vent connected to an exhaust system; a valve core (2), which is set in the tubular valve body and cooperates with the intake (4A) in a sealed manner; a travel guide bar (16), the lower end of which is connected with the valve core (2); a sleeve, which can be sleeved outside the tubular valve body in a rotating or up-and-down moving manner, so as to drive the travel guide bar (16) to rotate or move up and down; a spiral guide (18), which can be sleeved on the travel guide bar (16) in an up-and-down moving manner, wherein spiral grooves used for inserting at least one guide pin (21) are provided on the outside surface of the spiral guide (18); a pressure spring (22), one end of which is pressed tightly on the valve core (2), and the other end of which is pressed on the spiral guide (18).