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Title:
ANTI-FREEZE VALVE
Document Type and Number:
WIPO Patent Application WO/2023/036318
Kind Code:
A1
Abstract:
Provided in the present application is an anti-freeze valve, comprising: a valve seat having a valve cavity and a valve port, a side wall of the valve cavity having a limiting surface; a valve core movably arranged in the valve cavity to close or open the valve port; a temperature bulb movably arranged in the valve cavity, one end of the temperature bulb cooperating with the valve core, the temperature bulb having a stopping surface in stopping fit with the limiting surface, and included angles being formed between the stopping surface and the moving direction of the temperature bulb and between the limiting surface and the moving direction of the temperature bulb; a first channel arranged between a side wall of the temperature bulb and a side wall of the valve seat; and a second channel arranged between the limiting surface and the stopping surface and communicating with the first channel. When the valve port is opened, the second channel communicates with the valve port. When in use, a fluid flows in from one end of the valve seat far away from the valve port and sequentially enters the first channel and the second channel, and when the valve port is opened, the second channel communicates with the valve port, so that the fluid can flow out from the valve port. Through the technical solution provided by the present application, the problems in the prior art that the anti-freeze valve has a complex structure and is difficult to process can be solved.

Inventors:
KANG ZHIJUN (CN)
YU ZHOU (CN)
Application Number:
PCT/CN2022/118248
Publication Date:
March 16, 2023
Filing Date:
September 09, 2022
Export Citation:
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Assignee:
ZHEJIANG DUNAN ARTIFICIAL ENV CO LTD (CN)
International Classes:
F16K31/64; F16K1/34
Foreign References:
CN216158296U2022-04-01
CN216158302U2022-04-01
CN216158329U2022-04-01
CN216479078U2022-05-10
CN216158295U2022-04-01
CN216158300U2022-04-01
CN216158330U2022-04-01
CN102777671A2012-11-14
CN206159588U2017-05-10
CN107152604A2017-09-12
CN206129780U2017-04-26
US20070075152A12007-04-05
US6374849B12002-04-23
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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