Abstract: The invention relates to a motorized robot for cleaning swimming pools, comprising: means (2) for moving the robot, having a surface (3) for making contact with a movement surface submerged in the swimming pool; means (4) for generating a circulation of fluid in the robot, comprising an opening for the suction (5) of said fluid, and an opening for the backflow (6) of the aspirated fluid; a conduit (7) of fluid connecting the suction and backflow openings; means for generating (8) a flow of said fluid in the conduit; a strut for lifting at least part of the contact surface (3) from the movement surface, said strut being mobile between a first inactive position in which the strut is retracted inside the robot and a second active position in which the strut projects past the contact surface of the movement means in such a way that part of said contact surface can no longer be in contact with the movement surface; and means for controlling (10) the movement of the strut between its active and inactive positions,

Abstract: A motorised pool-cleaning device (1) includes: a suction element (30); a rotary element (4) for moving the device, which define first (2) and second (3) bearing axles; a support (18) consisting of (i) a first central part (24) and (ii) first (25) and second (26) side covers which are connected to either side of the first central part, such as to form the chassis of the motorised device, and which support the rotary movement element (4); and a drive element (16, 17) for rotating the rotary movement element (4), which are disposed on the first and second side covers in a cantilevered manner.