AIR RELEASE VALVE AND TOILET WATER TANK DRAINAGE VALVE OPENED BY USING AIR PRESSURE

Title:

AIR RELEASE VALVE AND TOILET WATER TANK DRAINAGE VALVE OPENED BY USING AIR PRESSURE

Document Type and Number:

WIPO Patent Application WO/2021/212252

Kind Code:

A1

Abstract:

The present invention relates to the field of toilet water tank drainage. Disclosed are an air release valve and a toilet water tank drainage valve opened by using air pressure. The air release valve comprises a valve seat, a sliding block, and a push block. An air release channel is provided at the bottom of the valve seat. One end of the air release channel is an air inlet end, and the other end forms an air release nozzle. The sliding block is located on the air release nozzle and is slidably disposed on the valve seat. A sealing gasket is provided at the bottom of the sliding block. An elastic member is provided between the sliding block and the valve seat. The sliding block is provided with a limiting protrusion. The valve seat is provided with a limiting stop. The side of the sliding block close to the inner core pipe of a drainage valve is further provided with upper and lower stops. The lower part of the upper stop is an inclined plane. The push block is located between the upper and lower stops and is disposed at the upper part of the inner core pipe of the drainage valve. The toilet water tank drainage valve opened by using air pressure comprises a drainage valve body, an inner core pipe, a limiting device, telescopic air bags, an air pump, air release valves, a controller, and an electronic induction switch. The present air release valve having a mechanical structure does not require power consumption and has low costs.

Inventors:

ZHANG ZIPENG (CN)
LIU YONGMAO (CN)

Application Number:

PCT/CN2020/085517

Publication Date:

October 28, 2021

Filing Date:

April 20, 2020

Export Citation:

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Assignee:

LAB XIAMEN SANITARY FITTINGS INC (CN)

International Classes:

E03D1/34

Foreign References:

CN208685732U	2019-04-02
CN208816695U	2019-05-03
CN207486178U	2018-06-12
CN205776606U	2016-12-07
EP2775048A1	2014-09-10
EP0801179A2	1997-10-15

Other References: