US 12,018,509 B2
Pool-cleaning robot
Wei Liu, Nantong (CN); Qijie Tian, Nantong (CN); and Jiamo Zhang, Nantong (CN)
Assigned to WARM ENVIRONMENTAL EQUIPMENT QIDONG CO., LTD, Nantong (CN)
Filed by WARM ENVIRONMENTAL EQUIPMENT QIDONG CO., LTD, Nantong (CN)
Filed on Dec. 16, 2022, as Appl. No. 18/082,599.
Claims priority of application No. 202211319029.7 (CN), filed on Oct. 26, 2022.
Prior Publication US 2024/0141667 A1, May 2, 2024
Int. Cl. E04H 4/16 (2006.01); A47L 5/12 (2006.01); A47L 9/28 (2006.01)
CPC E04H 4/1654 (2013.01) [A47L 5/12 (2013.01); A47L 9/2842 (2013.01); A47L 9/2847 (2013.01); A47L 9/2852 (2013.01); A47L 9/2884 (2013.01); A47L 2201/04 (2013.01); A47L 2201/06 (2013.01); E04H 4/1636 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A pool-cleaning robot, comprising:
a robot body, provided with a moving mechanism configured to controllably move the robot body forward or backward; wherein there is a weight difference between left and right sides of the robot body; wherein the moving mechanism comprises a driver, which is connected to a heavier side of the left and right sides of the robot body, and drives the moving mechanism;
wherein the robot body is provided with a fluid inlet-outlet and at least one first fluid inlet communicated with the fluid inlet-outlet through a first fluid channel, and at least one first fluid outlet communicated with the fluid inlet-outlet through a second fluid channel; the first fluid channel and the second fluid channel are communicated; wherein the at least one first fluid inlet and the at least one first fluid outlet are located at a bottom of the robot body; wherein the first fluid channel is provided with at least one filter chamber communicated with the at least one first fluid inlet; wherein the fluid inlet-outlet is provided with a fluid driver configured to controllably apply a suction force to the at least one first fluid inlet or a discharge force to the at least one first fluid outlet; and
a controller, provided in the robot body, connected to and controlling the operation of the moving mechanism and the fluid driver; wherein, when the robot body operates on a floor of a pool, a combination of the discharge force and the weight difference steers the pool-cleaning robot; when the robot body operates on a wall of the pool, a combination of the suction force and the weight difference steers the robot body.