Title:
ANTI-SIPHON TOILET WATER TANK WATER INLET VALVE
Document Type and Number:
WIPO Patent Application WO/2020/237654
Kind Code:
A1
Abstract:
Disclosed is an anti-siphon toilet water tank water inlet valve, comprising a valve seat, a pressure water stop valve, a buoyancy control mechanism and a water inlet pipe, wherein a containing cavity is formed on the valve seat; the bottom of the containing cavity is arranged at a water outlet end of the water inlet pipe; a water outlet channel leading to an outer side wall of the water outlet end of the water inlet pipe is formed on the bottom of the containing cavity; a water outlet of the water outlet channel is exposed out of an outer surface of the bottom of the containing cavity and is higher than the set highest water level line of a toilet water tank; the pressure water stop valve is installed in the containing cavity; and the buoyancy control mechanism enables water pressure or pressure relief to be formed in the pressure water stop valve to achieve the turning-on or turning-off of a water flow. The present solution has the advantages that a water outlet of a water outlet channel is directly exposed at the bottom of a valve seat and is higher than the set highest water level line of a toilet water tank. In this way, the water outlet of the water outlet channel is in direct communication with atmospheric pressure, and when water in a water inlet pipe loses pressure suddenly, the atmospheric pressure is directly supplemented into the water inlet pipe through the water outlet of the water outlet channel, such that the air pressure in the water inlet channel is kept in relative balance with the outside, thereby preventing siphoning, and ensuring that an anti-siphon function never fails.
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| WO/2018/137052 | WATER STOP VALVE |
| JPS5941265 | [Title of the device] Corporation cock |
Inventors:
ZHANG ZIPENG (CN)
LIU YONGMAO (CN)
LIU YONGMAO (CN)
Application Number:
PCT/CN2019/089608
Publication Date:
December 03, 2020
Filing Date:
May 31, 2019
Export Citation:
Assignee:
LAB XIAMEN SANITARY FITTINGS INC (CN)
International Classes:
E03D1/32; F16K1/32; F16K27/02; F16K31/12
Foreign References:
| CN108443564A | 2018-08-24 | |||
| CN104033647A | 2014-09-10 | |||
| CN107558550A | 2018-01-09 | |||
| US20160069470A1 | 2016-03-10 |
Attorney, Agent or Firm:
XIAMEN TIAN FUQIN INTELLECTUAL PROPERTY AGENCY FIRM (CN)
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