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Title:
WATER CUTOFF AND WATER STORAGE FREEZING PREVENTION APPARATUS AND USE METHOD
Document Type and Number:
WIPO Patent Application WO/2023/179017
Kind Code:
A1
Abstract:
Disclosed are a water cutoff and water storage freezing prevention apparatus and a use method, which relate to the technical field of pipe freezing prevention, and solve the problems of poor freezing prevention performance and high usage costs of existing pipe heat preservation structures. Thus, the pipe freezing prevention capability is improved, the usage costs are reduced. The specific solution is as follows: a water ejector that is located below a frost line is comprised. One end of the water ejector is connected to a water supply main pipe by means of a valve. The other end of the water ejector is connected to a vertically-arranged water supply branch pipe. A bottom portion of the water ejector is connected to a collapsible and expandable water storage bag, and the water ejector forms negative pressure by means of a sped-up water flow so as to extract water in the water storage bag.

Inventors:
ZHAO FANGCHAO (CN)
LI ZHICHAO (CN)
LIU CHANGQING (CN)
WANG XIAODONG (CN)
ZHANG FENG (CN)
BI XUEJUN (CN)
CHEN DONG (CN)
YANG YANDONG (CN)
Application Number:
PCT/CN2022/127741
Publication Date:
September 28, 2023
Filing Date:
October 26, 2022
Export Citation:
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Assignee:
UNIV QINGDAO TECHNOLOGY (CN)
International Classes:
E03B7/12
Foreign References:
CN114482200A2022-05-13
CN201649174U2010-11-24
CN204326167U2015-05-13
CN203546818U2014-04-16
CN2098521U1992-03-11
CN202831091U2013-03-27
CN110397118A2019-11-01
CN113669479A2021-11-19
KR20190129193A2019-11-20
KR20200050170A2020-05-11
Attorney, Agent or Firm:
JINAN SHENGDA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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