Title:
A VALVE
Document Type and Number:
WIPO Patent Application WO/2007/079658
Kind Code:
A1
Abstract:
A valve includes a housing which can connect with other pipelines; a resistance portion
which is provided in the housing; a seal baffle which is pivotly provided in said
housing and cooperates with said resistance portion to close and open the valve;
an automatic weight distribution unit which is provided on the top of the seal
baffle and crosses the front side and the rear side of the seal baffle. The counterweight
in the automatic weight distribution unit can move in the automatic weight distribution
unit accoring to the swing of the seal baffle to effect the opening and the closing
between the seal baffle and the resistance portion.The counterweight can swing
along with the seal baffle, therefore the valve can move back and forth. So the
adverse effects caused by the sudden shock when the valve is opened can be reduced,
and the weight of the seal baffle can be reduced. The valve has the function of delaying
the close of the valve, whereas the drainage of low discharge liquid can be carry
out easily.
Inventors:
YUEN YAN FAI (CN)
Application Number:
PCT/CN2006/003705
Publication Date:
July 19, 2007
Filing Date:
December 30, 2006
Export Citation:
Assignee:
YUEN YAN FAI (CN)
International Classes:
F16K15/03
Foreign References:
| JP2004036809A | 2004-02-05 | |||
| CN2110123U | 1992-07-15 | |||
| JP2002122255A | 2002-04-26 | |||
| JP2004036819A | 2004-02-05 | |||
| CN2636021Y | 2004-08-25 | |||
| CN86102647A | 1986-10-15 |
Attorney, Agent or Firm:
ADVANCE CHINA I.P. LAW OFFICE (Suite 918-920 9/F., Dongshan Plaza, No.69 Xianlie Central Roa, Guangzhou Guangdong 5, CN)
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