US 11,903,520 B2
Damping device, cooker, and device having damping structure
Shuangquan Zuo, Zhuhai (CN); Qun Chen, Zhuhai (CN); Kanggui Lin, Zhuhai (CN); Biao Xiao, Zhuhai (CN); and Zhichen Sun, Zhuhai (CN)
Assigned to GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD, Wuhan (CN); and GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
Appl. No. 16/758,357
Filed by GREE ELECTRIC APPLIANCES (WUHAN) CO., LTD, Wuhan (CN); and GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI, Zhuhai (CN)
PCT Filed Sep. 25, 2018, PCT No. PCT/CN2018/107189
§ 371(c)(1), (2) Date Apr. 22, 2020,
PCT Pub. No. WO2019/105119, PCT Pub. Date Jun. 6, 2019.
Claims priority of application No. 201711216558.3 (CN), filed on Nov. 28, 2017; application No. 201810014765.9 (CN), filed on Jan. 8, 2018; application No. 201820675962.0 (CN), filed on May 7, 2018; application No. 201810515639.1 (CN), filed on May 25, 2018; and application No. 201810516299.4 (CN), filed on May 25, 2018.
Prior Publication US 2020/0281397 A1, Sep. 10, 2020
Int. Cl. E05D 11/08 (2006.01); A47J 36/12 (2006.01); A47J 36/10 (2006.01); A47J 27/08 (2006.01); F16F 1/38 (2006.01); A47J 27/00 (2006.01); A47J 27/09 (2006.01)
CPC A47J 36/12 (2013.01) [A47J 27/08 (2013.01); A47J 36/10 (2013.01); F16F 1/38 (2013.01); A47J 27/002 (2013.01); A47J 27/004 (2013.01); A47J 27/0802 (2013.01); A47J 27/09 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A device, comprising a damping structure, and a first body and a second body rotatably connected by means of a rotary shaft and provided with a torsion spring therebetween;
the damping structure comprises an outer casing and an inner core nested in the outer casing, the outer casing comprising a fixed member and a supporting member arranged on the outer periphery of the fixed member, an inner wall of the fixed member of the outer casing comprises an elastic piece, an outer wall of the inner core comprises a protrusion, the elastic piece comprises an arc shape and protrudes in a direction away from the inner wall of the outer casing, a first end of the elastic piece is fixedly connected to the inner wall of the outer casing, and a second end of the elastic piece is arranged in a suspended manner and the elastic piece is a cantilever structure extending from the first end to the second end, wherein the elastic piece is arranged on the inner wall such that the protrusion is configured to be brought into contact with the elastic piece to generate a varying frictional resistance during movement of the inner core, thus applying an extrusion force onto the elastic piece with the movement of the inner core to elastically deform the elastic piece;
the first body is fixed with the outer casing or the inner core, the second body being rotatable relative to the outer casing by driving the inner core with the rotary shaft, the elastic piece has an elasticity gradually changing during a process of fitting the protrusion with the elastic piece to enable smooth transition, and the frictional resistance increases gradually during the process of opening a cover body;
a limiting portion for limiting the rotation of the inner core is formed on the elastic piece and disposed at a position near a joint between the elastic piece and the fixed member, such that the inner core cannot continue moving when moving to a position where the inner core comes into contact with the protrusion, hence limiting the movement of the inner core; the limiting portion comprises a protruding structure formed on a contact surface of the elastic piece and the inner core; the protrusion is not in contact with the elastic piece when the inner core is in an initial position, and the protrusion comes into contact with the elastic piece when the inner core is in rotation and movement; when the protrusion is in contact with the limiting portion on the elastic piece, the inner core stops moving;
during at least part of the opening process of the second body relative to the first body, the protrusion extrudes the elastic piece and rotates in a direction from the second end of the elastic piece to the first end of the elastic piece; and
the protrusion does not reach the first end of the elastic piece when the second body is completely opened relative to the first body.