US 12,330,291 B2
Joint assembly, swing device, and robot
Zhen-Xing Liu, Shenzhen (CN); Xiao-Ming Xu, Shenzhen (CN); Bo Long, Shenzhen (CN); Zhen Chen, Shenzhen (CN); and Yan-Chun Zhu, Shenzhen (CN)
Assigned to Fulian Yuzhan Precision Technology Co., Ltd., Shenzhen (CN)
Filed by Fulian Yuzhan Precision Technology Co., Ltd., Shenzhen (CN)
Filed on Nov. 14, 2023, as Appl. No. 18/508,900.
Claims priority of application No. 202211445755.3 (CN), filed on Nov. 18, 2022.
Prior Publication US 2024/0165831 A1, May 23, 2024
Int. Cl. B25J 17/02 (2006.01); B25J 9/14 (2006.01)
CPC B25J 17/0266 (2013.01) [B25J 9/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A joint assembly comprising:
a movable part defining a movable groove; and
a rotating part comprising a rotating body being a spherical shape, the rotating body rotatably received in the movable groove to adapt to the movable part, the rotating part defining an air hole with an air inlet and an air outlet, the air inlet configured to receive introduced air, and the air outlet configured to expel the air to the movable groove;
wherein the rotating body defines a rotating groove, the rotating groove and a bottom wall of the movable groove cooperatively form an air chamber, and the air hole is communicated with the rotating groove through the air outlet.