A cleaner includes a first cleaning module including a left spin mop and a right spin mop configured to contact the floor while rotating in a clockwise direction or in a counterclockwise direction when viewed from an upper side, a second cleaning module configured to contact the floor in front of the first cleaning module, and a body supported by the first cleaning module and the second cleaning module. A point on the bottom surface of the left spin mop that receives the largest frictional force from the floor is located on a left-front side of the rotation center of the left spin mop, and a point on the bottom surface of the right spin mop that receives the largest frictional force from the floor is located on a right-front side of the rotation center of the right spin mop.

A robot cleaner includes a rolling cleaning module including a rolling member configured to rotate clockwise or counterclockwise when viewed from a left side while in contact with a floor, a sensor unit, and a controller. The controller is configured to determine a change in position of the robot cleaner and a change in load current of a motor connected to the rolling member based on data detected by the sensor unit, and determine that a specific area of the floor is a contaminated area when there is a change in the position and a change in the load current.

A robot cleaner includes a rolling cleaning module including a rolling member configured to rotate clockwise or counterclockwise when viewed from a left side while in contact with a floor, a sensor unit, and a controller. The controller is configured to determine a change in position of the robot cleaner and a change in load current of a motor connected to the rolling member based on data detected by the sensor unit, and determine that a specific area of the floor is a contaminated area when there is a change in the position and a change in the load current.

The present disclosure discloses a cleaning robot and a roller cleaning device thereof. The cleaning robot comprises a shell and a roller cleaning device. The roller cleaning device comprises a flexible roller, a roller motor for driving the flexible roller to rotate, a water sink close to and in communication with a surface of the flexible roller, a water tank, and a sewage pressing member. The water tank comprises a filter member. One end of the water sink is in communication with the water tank through a sewage pipe at a position above the filter member, and the other end of the water sink is in communication with a clean water pipe at a position below the filter member. The water tank is connected to a vacuum pump, and the sewage pressing member squeezes the sewage in the flexible roller into the water tank when the flexible roller rotates.

The present disclosure discloses a cleaning robot and a roller cleaning device thereof. The cleaning robot comprises a shell and a roller cleaning device. The roller cleaning device comprises a flexible roller, a roller motor for driving the flexible roller to rotate, a water sink close to and in communication with a surface of the flexible roller, a water tank, and a sewage pressing member. The water tank comprises a filter member. One end of the water sink is in communication with the water tank through a sewage pipe at a position above the filter member, and the other end of the water sink is in communication with a clean water pipe at a position below the filter member. The water tank is connected to a vacuum pump, and the sewage pressing member squeezes the sewage in the flexible roller into the water tank when the flexible roller rotates.

A wet-cleaning appliance, in particular a wet mop, has a cleaning roller, which is mounted in a rotatable manner about a roller axis, and having a roller cover, which encloses the cleaning roller in the circumferential direction, at least in part, and has at least one movable covering element for optionally closing and/or releasing an opening region of the roller cover. In order to prevent residual liquid contained in the roller cover from dripping from the wet-cleaning appliance when the roller cover is opened, the movable covering element has a collecting unit, in particular a collecting container, which has a storage volume for collecting liquid that remains in the roller cover.

A moving robot is provided. The moving robot includes: a main body forming the exterior appearance; a moving means for moving the main body; a bumper configured to protrude on the outer perimeter of the main body; impact sensors placed at an angle on the main body to sense the movement of the bumper; and pressure parts formed in a bent shape at the end of the impact sensors.

A moving robot is provided. The moving robot includes: a main body forming the exterior appearance; a moving means for moving the main body; a bumper configured to protrude on the outer perimeter of the main body; impact sensors placed at an angle on the main body to sense the movement of the bumper; and pressure parts formed in a bent shape at the end of the impact sensors.

An autonomous coverage robot detection system includes an emitter configured to emit a directed beam, a detector configured to detect the directed beam and a controller configured to direct the robot in response to a signal detected by the detector. In some examples, the detection system detects a stasis condition of the robot. In some examples, the detection system detects a wall and can follow the wall in response to the detected signal.

A surface cleaning machine is proposed which includes an appliance body and a cleaning head which is arranged on the appliance body, wherein at least one driven cleaning roller unit is positioned on the cleaning head and a dirty fluid tank device is arranged on the cleaning head, and a drive motor, wherein a scraper guide device which acts on the at least one cleaning roller unit is associated with the at least one cleaning roller unit, wherein the scraper guide device is arranged at an inlet orifice of the dirty fluid tank device, and wherein the scraper guide device is arranged and formed in such a way that dirty fluid is couplable from the at least one cleaning roller unit via the inlet orifice of the dirty fluid tank device into the dirty fluid tank device without a suction fan.