Title:
WATER INLET VALVE FOR CLOSESTOOL WATER TANK
Document Type and Number:
WIPO Patent Application WO/2020/237656
Kind Code:
A1
Abstract:
Disclosed by the present invention is a water inlet valve for a closestool water tank, comprising a valve seat, a pressure water stop valve, a buoyancy control mechanism and a water inlet pipe. The pressure water stop valve comprises an upper cover and a water stop cushion. The valve seat is arranged at a water outlet end of the water inlet pipe; a water outlet channel is formed at the bottom of the valve seat and reaches the outer side of the water outlet end of the water inlet pipe. The end surface of the water outlet end of the water inlet pipe is a water stop surface. The water stop cushion is arranged at the water outlet end of the water inlet pipe, and is sealed tightly with the valve body by the upper cover. A pressure cavity is formed between the upper cover and the water stop cushion, and is provided with a water inlet hole and a pressure relief hole. The water inlet hole is in communication with the water inlet pipe, and the buoyancy control mechanism is arranged outside the pressure relief hole. The present disclosure has the advantage that the water inlet pipe replaces an inner core pipe and performs the function of the inner core pipe. Compared with a side-feed water inlet valve, the present disclosure makes it simpler to manufacture the valve body; compared with a bottom-feed water inlet valve, the present disclosure reduces the installation of the inner core pipe in the valve seat and decreases unnecessary leakage points.
Inventors:
ZHANG ZIPENG (CN)
LIU YONGMAO (CN)
LIU YONGMAO (CN)
Application Number:
PCT/CN2019/089612
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 | |||
| CN107558550A | 2018-01-09 | |||
| US20160069470A1 | 2016-03-10 | |||
| CN104033647A | 2014-09-10 |
Attorney, Agent or Firm:
XIAMEN TIAN FUQIN INTELLECTUAL PROPERTY AGENCY FIRM (CN)
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