公开(公告)号：US20220316981A1

公开(公告)日：2022-10-06

申请号：US17732602

申请日：2022-04-29

申请人： SHENZHEN UNIVERSITY ,  SICHUAN UNIVERSITY

发明人： Mingzhong GAO ,  Heping XIE ,  Guikang LIU ,  Ling CHEN ,  Cong LI ,  Bo YU ,  Xiangbiao JIANG ,  Yong ZHU ,  Chenghang FU ,  Jianjun HU ,  Nianhan WU ,  Zhiqiang HE ,  Mingqing YANG

IPC分类号： G01M13/003 ,  F16K31/08

摘要： A simulation device for magnetic closing of flap valve is disclosed, which includes a worktable, a driving mechanism for driving the worktable to rotate, a valve seat, a magnetic valve cover movably connected with the valve seat, a first magnet for repelling the magnetic valve cover, a cylinder, a lifting equipment for driving the cylinder to rise and fall. When the cylinder is inserted into the valve seat driven by the lifting equipment, the cylinder prevents the closure of the magnetic valve cover. When the cylinder is out of contact with the magnetic valve cover driven by the lifting equipment, the magnetic valve cover is closed, and the worktable in the simulation device can rotate and turn over, so that the closing process of flap valve (valve seat and valve cover) in any direction of deep drilling coring under the action of magnetic force is simulated.

公开(公告)号：US20230400111A1

公开(公告)日：2023-12-14

申请号：US18250699

申请日：2021-07-15

申请人： SHENZHEN UNIVERSITY

发明人： Heping XIE ,  Mingzhong GAO ,  Guikang LIU ,  Ling CHEN ,  Bo YU ,  Cong LI ,  Chenghan FU ,  Jianjun HU ,  Mingqing YANG ,  Nianhan WU ,  Zhiqiang HE

IPC分类号： F16K15/14 ,  F16K27/02 ,  F16K31/06 ,  F16K31/08

CPC分类号： F16K15/1441 ,  F16K27/0227 ,  F16K31/0655 ,  F16K31/084

摘要： Disclosed is a magnetic pressure retaining control device, which comprises: a valve seat, a magnetic valve cover, and a trigger magnetic member for repelling the magnetic valve cover; the magnetic valve cover and an open end of the valve seat are movably connected; when the magnetic valve cover is in an open state, the trigger magnetic member is opposite to an end surface of the magnetic valve cover away from an inside of the valve seat. A cylindrical magnet is also arranged in the valve seat. By the magnetic between the trigger magnet and the magnetic valve cover, and the magnetic between the magnetic valve cover and the valve seat, a reliable guarantee for the closure between the magnetic valve cover and the valve seat is provided. The valve seat and the valve cover are tightly closed under different conditions.