	US 12,017,354 B2
	Pneumatic-controlled pitch-adjustable telescopic mechanism used for robotic arm
Xianfeng Zhang, Zhongshan (CN); Junrong Li, Zhongshan (CN); and Yuehui Wang, Zhongshan (CN)
Assigned to Guangzhou College of Technology and Business, Foshan (CN)
Appl. No. 17/418,078
Filed by Guangzhou College of Technology and Business, Foshan (CN)
PCT Filed Jul. 2, 2020, PCT No. PCT/CN2020/099963 § 371(c)(1), (2) Date Dec. 9, 2022, PCT Pub. No. WO2021/196438, PCT Pub. Date Oct. 7, 2021.
Claims priority of application No. 202010245762.3 (CN), filed on Mar. 31, 2020.
Prior Publication US 2023/0119083 A1, Apr. 20, 2023
Int. Cl. B25J 9/14 (2006.01); F15B 15/16 (2006.01)

CPC B25J 9/144 (2013.01) [F15B 15/16 (2013.01)]

10 Claims

1. A pneumatic-controlled pitch-adjustable telescopic mechanism used for a robotic arm, comprising a sliding block, a fixed block and a driving device, the fixed block is in a fixed position; the sliding block slides relative to the fixed block according to a predetermined movement track, which is used to adjust a distance between the sliding block and the fixed block; the driving device is used to provide power to drive; a sliding bar is disposed between the driving device and the sliding block, one end of the sliding bar is fixedly connected to the driving device, and the other end is slidingly connected to the sliding block, which is used to drive the sliding block to slide according to the predetermined movement track; the fixed block is provided with a fixed bracket, and the fixed bracket comprises a fixed base and a guide mechanism, the fixed base mates with the sliding bar, which is used to restrict the sliding bar from moving in a direction non-parallel to the predetermined movement track; the guide mechanism mates with the sliding block, which is used to guide the sliding block to slide along the predetermined movement track.