Title:
A CONNECTION VALVE OF A SEPARATED AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2001/006164
Kind Code:
A1
Abstract:
This invention relates to a connection valve of a separated air conditioner, which include two connecting pipes and one connecting pipe nut. One of the two connecting pipes with a hollow conical surface and the other one with a spherical convex surface at their opposite ends respectively. A linear contact is formed between the two surfaces by the connecting pipe nut, the characterized by the outer diameter of the spherical convex surface is larger than the inner diameter of the outer connecting pipe, and equal or smaller than the outer diameter of the outer connecting pipe. As a result, the connecting pipe nut locked the spherical convex surface directly to connect the two connecting pipes therebetween. Thus improve the efficiency and reliability of the product.
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Inventors:
LI YONGQIANG (CN)
Application Number:
PCT/CN2000/000194
Publication Date:
January 25, 2001
Filing Date:
July 12, 2000
Export Citation:
Assignee:
LI YONGQIANG (CN)
International Classes:
F16L19/02; (IPC1-7): F16L19/02
Foreign References:
| GB2165906A | 1986-04-23 | |||
| US4881763A | 1989-11-21 | |||
| CN2244127Y | 1997-01-01 | |||
| CN2077510U | 1991-05-22 | |||
| DE19531743C1 | 1996-12-05 |
Attorney, Agent or Firm:
CHINA SCIENCES PATENT & TRADEMARK AGENT LIMITED (Zhongke Building 80 Haidian Roa, Haidian District Beijing 0, CN)
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