Title:
MAGNETIC FORCE PRESSURE-MAINTAINING CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/205677
Kind Code:
A1
Abstract:
A magnetic force pressure-maintaining control device, comprising a valve seat (10), a magnetic valve cover (20), and a trigger magnetic member (30) for repelling the magnetic valve cover (20), wherein the magnetic valve cover (20) is movably connected to an opening end of the valve seat (10); when the magnetic valve cover (20) is in an open state, the trigger magnetic member (30) is opposite the end face of the magnetic valve cover (20) that faces away from the interior of the valve seat (10). A magnet (110) is also provided in the valve seat (10). The magnetic force between the trigger magnetic member (30) and the magnetic valve cover (20) provides a closing force to the magnetic valve cover (20), and the magnetic force between the magnetic valve cover (20) and the magnet (110) on the valve seat (10) makes the magnetic valve cover (20) and the valve seat (10) tightly closed. The repulsion force between the trigger magnetic member (30) and the magnetic valve cover (20) can overcome the gravity of the magnetic valve cover (20) itself and the friction force between the magnetic valve cover and a connecting arm, so as to ensure the tight closure of the valve cover in different states.
Inventors:
XIE HEPING (CN)
GAO MINGZHONG (CN)
LIU GUIKANG (CN)
CHEN LING (CN)
YU BO (CN)
LI CONG (CN)
FU CHENGHANG (CN)
HU JIANJUN (CN)
YANG MINGQING (CN)
WU NIANHAN (CN)
HE ZHIQIANG (CN)
GAO MINGZHONG (CN)
LIU GUIKANG (CN)
CHEN LING (CN)
YU BO (CN)
LI CONG (CN)
FU CHENGHANG (CN)
HU JIANJUN (CN)
YANG MINGQING (CN)
WU NIANHAN (CN)
HE ZHIQIANG (CN)
Application Number:
PCT/CN2021/106495
Publication Date:
October 06, 2022
Filing Date:
July 15, 2021
Export Citation:
Assignee:
UNIV SHENZHEN (CN)
International Classes:
F16K1/20; F16K1/36
Foreign References:
| CN111911638A | 2020-11-10 | |||
| CN104947785A | 2015-09-30 | |||
| CN102506206A | 2012-06-20 | |||
| US20050006612A1 | 2005-01-13 | |||
| CN111457151A | 2020-07-28 | |||
| US20100294502A1 | 2010-11-25 | |||
| CN111911639A | 2020-11-10 | |||
| CN103527795A | 2014-01-22 | |||
| KR20050077815A | 2005-08-03 |
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY (SHENZHEN) (CN)
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