Title:
ANTI-BACKFLOW FAUCET
Document Type and Number:
WIPO Patent Application WO/2021/103464
Kind Code:
A1
Abstract:
Disclosed is an anti-backflow faucet. The anti-backflow faucet comprises a pipe body (10), wherein the pipe body (10) comprises a main vertical pipe (11) which is vertically arranged; a horizontal pipe (12) is provided at the right end of the upper portion of the main vertical pipe (11); a water outlet pipe (13) inclining downwards from left to right is provided at the right end of the horizontal pipe (12); an air outlet pipe (14), which is vertically provided, is provided at the upper end of the side wall of the horizontal pipe (12); the left end of the horizontal pipe (12) is in communication with the main vertical pipe (11), the right end of the horizontal pipe is in communication with the water outlet pipe (13), and the upper end of the horizontal pipe is in communication with the air outlet pipe (14); the upper ends of the main vertical pipe (11) and the air outlet pipe (14) are sealed; an opening and closing block (16) is vertically and elastically arranged in the main vertical pipe (11) in a moving manner; a lower one-way valve (142) is arranged at an opening in the lower end of the air outlet pipe (14); an upper one-way valve (143) is arranged at the lower right end of the side wall of the air outlet pipe (14); an air inlet and outlet block (17) is vertically and elastically arranged in the air outlet pipe (14) in a moving manner; and the opening and closing block (16) and the air inlet and outlet block (17) synchronously move in an ascending and descending manner.
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| WO/2017/127482 | ONE-WAY CHECK VALVE |
Inventors:
XU ZHENGGUO (CN)
Application Number:
PCT/CN2020/093064
Publication Date:
June 03, 2021
Filing Date:
May 29, 2020
Export Citation:
Assignee:
TAIZHOU SRUITE IMP &EXP CO LTD (CN)
International Classes:
F16K15/02; B01D35/04; F16K1/00; F16K1/32; F16K1/36; F16K17/04
Domestic Patent References:
| WO2019138386A1 | 2019-07-18 |
Foreign References:
| CN110805724A | 2020-02-18 | |||
| CN201787083U | 2011-04-06 | |||
| DE102012215548A1 | 2014-03-06 | |||
| CN1072482A | 1993-05-26 | |||
| CN101694310A | 2010-04-14 | |||
| CN102588645A | 2012-07-18 |
Attorney, Agent or Firm:
LANTIAN INTELLECTUAL PROPERTY AGENCY et al. (CN)
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