US 12,281,642 B2
Bidirectional energy storage device, robotic joint and robot
Zhongkui Huang, Shenzhen (CN); Hongyu Ding, Shenzhen (CN); Yisen Hu, Shenzhen (CN); MaLin Wang, Shenzhen (CN); and Youpeng Li, Shenzhen (CN)
Assigned to UBTECH ROBOTICS CORP LTD, Shenzhen (CN)
Filed by UBTECH ROBOTICS CORP LTD, Shenzhen (CN)
Filed on Feb. 27, 2024, as Appl. No. 18/588,046.
Application 18/588,046 is a continuation of application No. PCT/CN2021/127151, filed on Oct. 28, 2021.
Claims priority of application No. 202110996910.X (CN), filed on Aug. 27, 2021.
Prior Publication US 2024/0200538 A1, Jun. 20, 2024
Int. Cl. F03G 1/10 (2006.01); B25J 9/10 (2006.01)
CPC F03G 1/10 (2013.01) [B25J 9/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A bidirectional energy storage device for a joint, comprising:
a sleeve comprising an open end and an opposite, closed end;
an elastic member attached to the sleeve;
a sliding member slidably arranged at the open end of the sleeve, wherein opposite ends of the elastic member are respectively in contact with the closed end of the sleeve and the sliding member;
a first telescopic link comprising a first end pivotally connected to the sliding member and an opposite, second end; and
a second telescopic link comprising a first end pivotally connected to the sliding member and an opposite, second end;
wherein the second ends of the first telescopic link and the second telescopic link are pivotally connected to a rotating member at an end of the joint, the first telescopic link and the second telescopic link are configured to extend and retract to drive the sliding member to side along the sleeve when the rotating member rotates.