US 12,383,457 B1
Internal sucking massage stick structure
Quan Zhao, Guangdong (CN); and Lang Cun, Guangdong (CN)
Assigned to Dongguan Rijie Electronic Technology Co., Ltd., Guangdong (CN)
Filed by Dongguan Rijie Electronic Technology Co., Ltd., Guangdong (CN); and Shenzhen Envision Technology Innovation Co., Ltd., Guangdong (CN)
Filed on Oct. 10, 2024, as Appl. No. 18/911,380.
Int. Cl. A61H 19/00 (2006.01); A61H 9/00 (2006.01); A61H 23/02 (2006.01)
CPC A61H 19/44 (2013.01) [A61H 9/0057 (2013.01); A61H 23/0254 (2013.01); A61H 2201/0153 (2013.01); A61H 2201/1215 (2013.01); A61H 2201/1238 (2013.01); A61H 2201/169 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An internal sucking massage stick structure, comprising:
a hard shell, which is provided with an inner cavity, and at least one concave part is disposed on the side wall of the hard shell;
a flexible wall, which covers a peripheral wall of the hard shell, the flexible wall shields each of the at least one concave part to respectively form an elastic part, and a respective closed cavity is defined between each of the respective elastic parts and the hard shell;
a pneumatic actuator, which is disposed on the hard shell, the hard shell is provided with a lithium battery, a Printed Circuit Board (PCB) connected with the lithium battery and a control unit connected with the PCB, the pneumatic actuator is connected with the PCB, and the control unit is configured to control the working state of the pneumatic actuator;
the pneumatic actuator is configured to control a volume change of each of the respective closed cavities and adjust air pressure inside each of the respective closed cavities,
when air pressure changes, the each of the respective elastic parts may deform between an expansion position and a retraction position.