Title:
SWITCHING VALVE
Document Type and Number:
WIPO Patent Application WO/2024/011997
Kind Code:
A1
Abstract:
A switching valve, comprising a valve body (10), which is provided with a water inlet (13), a water outlet (14), and a liquid control port (15), wherein a water intake cavity (18) and a water output cavity (16) are formed in the valve body, and the water intake cavity (18) is separated from the water output cavity (16) by a separation component (161); a first diaphragm (20), which is arranged above the water intake cavity (18) and the water output cavity (16) and can cover the water intake cavity (18) and the water output cavity (16), wherein the first diaphragm (20) is provided with a balance hole (21) and a controlled hole (22); and a valve core mechanism (30), which makes, by means of blocking and pressing the controlled hole (22), the first diaphragm (20) subsequently press the separation component (161) to separate and close the water intake cavity (18) and the water output cavity (16), or makes, by means of removing pressure on the controlled hole (22) of the first diaphragm (20), a liquid entering the water intake cavity (18) through the water inlet (13) push against the first diaphragm (20) upwards to make the water intake cavity (18) be in communication with the water output cavity (16). The liquid control port (15) is configured to introduce a pressure liquid, and the valve core mechanism (30) is driven by the pressure liquid introduced through the liquid control port (15), and then presses the first diaphragm (20) by pressing the controlled hole (22), or removes pressure on the first diaphragm (20).
Inventors:
LIU GUO (CN)
LIU XIAOHAN (CN)
LIU XIAOHAN (CN)
Application Number:
PCT/CN2023/089950
Publication Date:
January 18, 2024
Filing Date:
April 22, 2023
Export Citation:
Assignee:
NANJING HANSHU ENVIRONMENTAL PROT EQUIPMENT CO LTD (CN)
LIU GUO (CN)
LIU GUO (CN)
International Classes:
F16K31/126; F16K7/17; F16K17/04
Foreign References:
| CN105473915A | 2016-04-06 | |||
| CN204922118U | 2015-12-30 | |||
| CN104564879A | 2015-04-29 | |||
| CN102705530A | 2012-10-03 | |||
| CN1654863A | 2005-08-17 | |||
| JP2007024070A | 2007-02-01 |
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