Title:
STOP VALVE, MACHINING METHOD, AND ASSEMBLY METHOD
Document Type and Number:
WIPO Patent Application WO/2023/093424
Kind Code:
A1
Abstract:
Disclosed is a stop valve, comprising: a valve tube (10), wherein two ends are respectively an operating end (11) and a plugging end (12), the side wall of the valve tube is provided with a first connector (13) and a second connector (14), both the first connector and the second connector are in communication with a cavity of the valve tube, the second connector is close to the plugging end relative to the first connector, and a space in the valve tube and positioned between the second connector and the plugging end forms a buffer chamber (15); a base (20), which is used for plugging an opening of the plugging end; a sleeve ring (30), which is fixed in the cavity of the valve tube, wherein the outer wall of the sleeve ring is in sealing fit with the inner wall of the valve tube, the sleeve ring is positioned between the first connector and the second connector, and the sleeve ring is provided with a valve port (31); and a valve core (40), which is movably arranged in the cavity of the valve tube so as to close or open the valve port, wherein the valve core is positioned at the side of the sleeve ring facing the operating end. The valve tube and the base are made of stainless steel. By means of the stop valve, the problems of unstable fluid flow, difficult machining and high cost of a stop valve in the prior art can be solved. Further disclosed are a machining method and assembly method for the stop valve.
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Inventors:
CHEN DIYONG (CN)
SHOU JIE (CN)
FENG GUANGHUA (CN)
CHEN WEINENG (CN)
LUO BIN (CN)
LOU FENG (CN)
YUAN XINGYANG (CN)
SHOU JIE (CN)
FENG GUANGHUA (CN)
CHEN WEINENG (CN)
LUO BIN (CN)
LOU FENG (CN)
YUAN XINGYANG (CN)
Application Number:
PCT/CN2022/127405
Publication Date:
June 01, 2023
Filing Date:
October 25, 2022
Export Citation:
Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K1/00; F16K1/36; F16K1/46; F16K27/02; F16K27/08
Foreign References:
| CN216742842U | 2022-06-14 | |||
| CN216742843U | 2022-06-14 | |||
| CN216742841U | 2022-06-14 | |||
| CN211875111U | 2020-11-06 | |||
| CN112045375A | 2020-12-08 | |||
| CN203115154U | 2013-08-07 | |||
| CN104180064A | 2014-12-03 | |||
| CN211501648U | 2020-09-15 | |||
| CN211501693U | 2020-09-15 | |||
| DE19527760A1 | 1997-01-30 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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