US 12,351,285 B2
Attitude adjustment apparatus for self-propelled bio-inspired robotic fish
Zhenping Wan, Guangzhou (CN); Jiahao Yu, Guangzhou (CN); Xuesong Hu, Guangzhou (CN); Guangquan Huang, Guangzhou (CN); Guanyuan Huang, Guangzhou (CN); Hang Zhao, Guangzhou (CN); Liujie Dong, Guangzhou (CN); and Zhao Luo, Guangzhou (CN)
Assigned to South China University of Technology, Guangzhou (CN)
Filed by South China University of Technology, Guangzhou (CN)
Filed on Jul. 7, 2022, as Appl. No. 17/811,299.
Prior Publication US 2023/0013643 A1, Jan. 19, 2023
Int. Cl. B63G 8/22 (2006.01); B63H 1/36 (2006.01)
CPC B63G 8/22 (2013.01) [B63H 1/36 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An attitude adjustment apparatus for a self-propelled bio-inspired robotic fish, comprising a fish body, wherein the fish body comprises:
a housing (100);
a center-of-gravity adjustment assembly (200), located in the housing (100) to adjust a center of gravity of the fish body, and comprising at least one counterweight (218) and a screw-slider mechanism that drives the at least one counterweight (218) to move in a head-to-tail direction; and
a suction and drainage system (300), located in the housing (100) to adjust a weight of the fish body, and comprising a ballast tank (310) and a water control assembly for controlling a water level in the ballast tank (310).