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Patent Searching and Data


Title:
FORCED SEAL BALL VALVE
Document Type and Number:
WIPO Patent Application WO/2017/202151
Kind Code:
A1
Abstract:
Disclosed is a forced seal ball valve, comprising a valve seat (10), a valve ball, and a valve shaft (20). The valve ball comprises a valve ball body (30) and a sealing cover (40). The valve shaft (20) rotates a valve ball back and forth between an opening position and a closing position. When the valve ball body (30) is rotated to the closing position, the sealing cover (40) extends from the valve ball body (30), presses against the valve seat (10), and engages the valve seat (10). The valve has a compact structure, can achieve friction-free opening and closing movements, and provides a uniform and reliable force-sealed coupling. In the opening position, the valve ball is contracted and locked to prevent damage by turbulent flow. The ball valve has a small operating torque, can be rapidly opened or closed, and has a simple and reliable seal for the valve shaft.

Inventors:
LIU, Xiaoqi (3-3-301,Yard 38,Anjialou, Chaoyang District, Beijing 5, 100125, CN)
Application Number:
CN2017/080179
Publication Date:
November 30, 2017
Filing Date:
April 12, 2017
Export Citation:
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Assignee:
LIU, Xiaoqi (3-3-301,Yard 38,Anjialou, Chaoyang District, Beijing 5, 100125, CN)
International Classes:
F16K5/20
Foreign References:
CN105927750A2016-09-07
CN205877247U2017-01-11
CN104295764A2015-01-21
CN103574089A2014-02-12
CN102979929A2013-03-20
CN202402688U2012-08-29
CN1073247A1993-06-16
CN103727260A2014-04-16
US20010025941A12001-10-04
Attorney, Agent or Firm:
BEIJING GLM INTELLECTUAL PROPERTY AGENCY LTD. (Unit 605,Henderson Centre Office Building 1,, 18 JianGuoMenNei Street,Dongcheng District, Beijing 5, 100005, CN)
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