Title:
VALVE BASE DRIVEN FORCED SEALING BALL VALVE
Document Type and Number:
WIPO Patent Application WO/2019/149290
Kind Code:
A1
Abstract:
A valve base driven forced sealing ball valve, comprising a valve body (10), a first valve base (20), a valve ball (30), and a valve rod (40). The valve rod (40) drives the valve ball (30) to conduct a reciprocating rotation between switch positions, and the valve rod (40) further drives the first valve base (30) to reciprocate towards the valve ball (30). When the valve ball (30) is closed, the first valve base (20) is locked with the valve ball (30) to achieve forced sealing. The first valve base (20) is driven by a first valve base driving ring (50) to reciprocate towards the valve ball (30). The first valve base driving ring (50) is provided with internal threads. The first valve base (20) is provided with external threads. The first valve base driving ring (50) drives the first valve base (20) to reciprocate towards the valve ball (30) by means of the threaded connection.
More Like This:
| WO/2018/230668 | VALVE DEVICE |
| WO/2019/170761 | SEAL ASSEMBLY AND FLUID REGULATING VALVE |
| JPS62224775 | BALL VALVE |
Inventors:
CHEN JIMENG (CN)
LIU XIAOQI (CN)
LIU XIAOQI (CN)
Application Number:
PCT/CN2019/079471
Publication Date:
August 08, 2019
Filing Date:
March 25, 2019
Export Citation:
Assignee:
ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD (CN)
International Classes:
F16K5/06
Foreign References:
| CN108278378A | 2018-07-13 | |||
| CN107191614A | 2017-09-22 | |||
| CN105927750A | 2016-09-07 | |||
| CN107387805A | 2017-11-24 | |||
| US20150247579A1 | 2015-09-03 | |||
| EP2492552B1 | 2016-01-20 |
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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