A cleaning method of a cleaning robot, a chip, and a cleaning robot. The cleaning method of the cleaning robot includes: moving forward and along a first lateral direction to form a first cleaning path; moving backward to form a second cleaning path; moving forward and along a second lateral direction to form a third cleaning path, where the second lateral direction is opposite to the first lateral direction; and repeatedly performing the first cleaning path, the second cleaning path, and the third cleaning path in turn. The cleaning method of the cleaning robot improves the cleaning effect by repeatedly performing a three-segment series of paths.

A cleaner head for a vacuum cleaning appliance includes an agitator assembly including a cylindrical body configured to rotate about its longitudinal axis; a main body defining an agitator chamber within which is supported the agitator assembly and a suction opening through which a portion of the agitator assembly engages a surface to be cleaned. The main body has opposing ends and a first exhaust channel in fluid communication with the agitator chamber. The main body is configured such that the cross-sectional area of the agitator chamber increases in a direction from one of the opposing ends of the agitator chamber towards the first exhaust channel.

A mobile robot of the present disclosure includes: a traveling unit configured to move a main body; a cleaning unit configured to perform a cleaning function; a sensing unit configured to sense a surrounding environment; an image acquiring unit configured to acquire an image outside the main body; and a controller configured to generate a distance map indicating distance information from an obstacle for a cleaning area based on information detected and the image through the sensing unit and the image acquiring unit, divide the cleaning area into a plurality of detailed areas according to the distance information of the distance map and control to perform cleaning independently for each of the detailed areas. Therefore, the area division is optimized for the mobile robot traveling in a straight line by dividing the area in a map showing a cleaning area.

A cleaner head for a cleaning appliance including an agitator rotatable about an axis; a housing having a front side, a rear side, and first and second sides which extend between the front side and rear side, said housing further including a floor facing surface. The housing defines a chamber which at least partially surrounds the agitator, the chamber having a dirty air inlet and a dirty air outlet. A wiper device which extends laterally between the first and second sides of the housing and is positioned on or adjacent the floor facing surface. A floor engaging device extends laterally between the first and second sides of the housing and is positioned on or adjacent the floor facing surface. The floor engaging device includes an absorbent portion. The wiper device and the floor engaging device are positioned rearwardly of the dirty air inlet.

A robot cleaner includes a main body, a water tank including a turbidity sensor and a water level sensor, and a pair of rotary mops configured to move the main body while rotating in contact with a floor. A drive motor rotates the pair of rotary mops and a nozzle supplies water from the water tank to the rotary mop. A rotary mop controller varies an output current of the drive motor based on signals from the water tank sensors. A controller determines whether the water tank is contaminated based on the output current of the drive motor received from the rotary mop controller.

A robot cleaner includes a main body forming an exterior and having a water tank housing formed at a rear side thereof. The water tank housing may form a space in which a water tank is mounted. At least one spin mop is rotatably provided at a lower side of the main body, moving the main body by rotating, and configured to clean a floor using water in the water tank. A supply nozzle is provided at one side of the water tank housing, and when connected to a discharge nozzle of the water tank, communicates with the discharge nozzle to supply water stored in the water tank to each of the spin mops. The robot cleaner further includes a locking device rotatably provided at a position spaced apart from a circumferential surface of the water tank housing, and configured to secure the water tank in the water tank housing when mounted or to release the water tank by pushing backward on the water tank.

The present disclosure relates to a grinding head (1) for a floor grinding machine for grinding floor surfaces of stone or stone-like material. Such a grinding head (1) comprises a lower casing member (3), comprising a lower support (31) and an upwardly extending edge portion (32), and an upper casing number (2), comprising an upper cover (21) and a downwardly extending edge portion (22), wherein the upper casing member (2) is joinable to the lower casing member (3) by causing axially distal portions of the edge portions to bear on each other.

A surface cleaning machine includes: a suction device; a cleaning base suitable for moving on a surface to be cleaned, the cleaning base comprising a cleaning roller capable of rotating; a cleaning liquid supply unit; and a dirty liquid recovery tank, the dirty liquid recovery tank being in fluid communication with the suction device; where the cleaning base further includes a transfer chamber adjacent to the rear side of the cleaning roller and capable of temporarily holding a solid-liquid mixture, the transfer chamber configured to be in fluid communication with the suction device, so that the surface cleaning machine can transfer at least a part of liquid or at least a part of a solid-liquid mixture from the transfer chamber to the dirty liquid recovery tank by means of the suction device, thereby achieving a low energy consumption operation.

A surface cleaning apparatus adapted for wet cleaning includes a heated fluid delivery system having a dual-phase distributor that dispenses heated liquid and steam vapor. The dual-phase distributor can include a phase separator that separates a vapor phase of a heated fluid from a liquid phase of the heated fluid, a heated liquid outlet, and a steam vapor outlet. The apparatus can further include a liquid delivery system, and/or a recovery system.

An automatic cleaning apparatus includes: a chassis; a front housing arranged at a front end of the chassis; and a sensing device capable sensing movement of the front housing and sending a signal to a control mainboard of the automatic cleaning apparatus when the front housing touches an obstacle and moves relative to the chassis. The sensing device includes a dust blocking member and a rocker arm that triggers the sensing device to send the signal. The rocker arm has a first end rotatably arranged inside the sensing device, and a second end passing through the dust blocking member and extending out of the sensing device. A front housing reset device is arranged on the chassis and capable of biasing the front housing toward an initial position of the front housing.