Title:
DOUBLE-FORCED SEAL BALL VALVE AND ROTARY CLUTCH OPERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/038317
Kind Code:
A1
Abstract:
Disclosed is a double-forced seal ball valve. The double-forced seal ball valve comprises a valve ball (10), a valve rod (11) and a valve body (71). The double-forced seal ball valve is equipped with a closing sealed valve seat (20) and an opening sealed valve seat (30). The closing sealed valve seat is clasped with the valve ball at a closing position of the valve ball, and the opening sealed valve seat is clasped with the valve ball at an opening position of the valve ball. Also disclosed is a rotary clutch operating device. The rotary clutch operating device is equipped with a driving rotary disk (50) and a stroke positioning seat (60). A first through hole (51) is formed in the driving rotary disk, and a first locking body (52) is arranged in the first through hole. The valve ball is equipped with a recessed hole (13) corresponding to the first locking body at a circumferential position, and the stroke positioning seat is equipped with a surpassing groove (62) corresponding to the first locking body.
Inventors:
CHEN JIMENG (CN)
LIU XIAOQI (CN)
LIU XIAOQI (CN)
Application Number:
PCT/CN2019/101313
Publication Date:
February 27, 2020
Filing Date:
August 19, 2019
Export Citation:
Assignee:
ZIBO VOTAISI PETROCHEMICAL EQUIPMENT CO LTD (CN)
International Classes:
F16K5/06; F16K5/08
Domestic Patent References:
| WO2001084028A1 | 2001-11-08 |
Foreign References:
| CN204153213U | 2015-02-11 | |||
| CN204153213U | 2015-02-11 | |||
| CN108278378A | 2018-07-13 | |||
| CN108730558A | 2018-11-02 | |||
| US20070252102A1 | 2007-11-01 | |||
| GB8709338D0 | 1987-05-28 |
Attorney, Agent or Firm:
DRAGON INTELLECTUAL PROPERTY LAW FIRM (CN)
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