公开(公告)号：US20210341099A1

公开(公告)日：2021-11-04

申请号：US17243523

申请日：2021-04-28

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yongjin Zhao ,  Wenhua Yu ,  Libing Zhou ,  Junxin Mou ,  Jialin Qin ,  Youjun Xiong

IPC: F16M13/02 ,  F16H25/20 ,  F16M11/04 ,  F16M11/18 ,  B25J9/12

Abstract: An elevation device includes a mounting frame, a rotary actuator fixed to the mounting frame, a shall connected to the rotary actuator and rotatable with respect to the mounting frame, a drive bar slidably connected to the mounting frame, and a connecting member fixed to the shaft. The shaft defines a helical groove in a lateral surface thereof. The drive bar includes a post that is movably fit in the helical groove. The mounting frame, the shaft and the drive bar constitute a conversion mechanism that converts rotation of the shaft into linear motion of the drive bar. The drive bar is slidable with respect to the mounting frame along a direction that is parallel to an axis of rotation of the shaft.

公开(公告)号：US11619344B2

公开(公告)日：2023-04-04

申请号：US17243523

申请日：2021-04-28

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Yongjin Zhao ,  Wenhua Yu ,  Libing Zhou ,  Junxin Mou ,  Jialin Qin ,  Youjun Xiong

IPC: F16M11/00 ,  F16M13/02 ,  B25J9/12 ,  F16H25/20 ,  F16M11/04 ,  F16M11/18

Abstract: An elevation device includes a mounting frame, a rotary actuator fixed to the mounting frame, a shaft connected to the rotary actuator and rotatable with respect to the mounting frame, a drive bar slidably connected to the mounting frame, and a connecting member fixed to the shaft. The shaft defines a helical groove in a lateral surface thereof. The drive bar includes a post that is movably fit in the helical groove. The mounting frame, the shaft and the drive bar constitute a conversion mechanism that converts rotation of the shaft into linear motion of the drive bar. The drive bar is slidable with respect to the mounting frame along a direction that is parallel to an axis of rotation of the shaft.