Title:
CHECK VALVE AND AIR CONDITIONING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/134406
Kind Code:
A1
Abstract:
Disclosed is a check valve, comprising a connecting pipeline (1) and a sealing member (2), wherein one end of the sealing member (2) is hinged to the connecting pipeline (1); and the sealing member (2) has a first state in which the connecting pipeline (1) is closed and a second state in which a fluid passes through the connecting pipeline (1), and in the second state, a plane where the sealing member (2) is located and the axis of the connecting pipeline (1) have an included angle therebetween. The sealing member is hinged to an inner wall of the connecting pipeline, such that the angle of the sealing member gradually increases when opening, and when the sealing member is opened to an appropriate position, only some of the fluid is required to maintain the degree of opening of the sealing member, and the rest of the fluid directly passes through same, thereby effectively reducing the loss of pressure and solving the problem that a traditional check valve needs to rely on the pressure of the fluid to press a spring so as to maintain an open state. Moreover, when the sealing member is in the second state, the problem of back-and-forth vibration does not exist. Further disclosed is an air conditioning system with this check valve mounted thereon, wherein the problem of noise generated due to vibration can be prevented.
Inventors:
LIU HUA (CN)
ZHANG ZHIPING (CN)
LONG ZHONGKENG (CN)
LUO CHILIANG (CN)
WU HONGZE (CN)
WANG SHUANGLIANG (CN)
ZHANG BING (CN)
LI YING (CN)
ZHAO MINGZHI (CN)
ZHONG DANYAN (CN)
ZHANG ZHIPING (CN)
LONG ZHONGKENG (CN)
LUO CHILIANG (CN)
WU HONGZE (CN)
WANG SHUANGLIANG (CN)
ZHANG BING (CN)
LI YING (CN)
ZHAO MINGZHI (CN)
ZHONG DANYAN (CN)
Application Number:
PCT/CN2019/112393
Publication Date:
July 02, 2020
Filing Date:
October 22, 2019
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F16K15/03; F25B41/20
Foreign References:
| CN109578635A | 2019-04-05 | |||
| CN107763255A | 2018-03-06 | |||
| CN207500552U | 2018-06-15 | |||
| GB2335714B | 2002-10-09 | |||
| JP2001159472A | 2001-06-12 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
Download PDF: