A floor cleaner including a including a base, an upright portion, and a recovery tank. The recovery tank includes a baffle configured to separate liquid and air from a liquid-laden stream entering the recovery tank.

An apparatus for cleaning a surface includes a liquid delivery system for storing cleaning liquid and delivering the cleaning liquid to the surface to be cleaned, a fluid recovery system and a control system. The control system includes a controller that is coupled to a sensing assembly. Methods of operating the same include sensing foam or liquid with the sensing assembly.

A cleaner includes a first cleaning module including a left spin mop and a right spin mop that come into contact with a floor while rotating in a clockwise direction or in a counterclockwise direction when viewed from an upper side, a second cleaning module that comes into contact with the floor at a position spaced apart from the left spin mop and the right spin mop in a forward-and-backward direction, a body supported by the first cleaning module and the second cleaning module, and a water supply module that supplies water to the first cleaning module. A water tank is disposed inside the body. Water supplied by the water supply module reaches the first cleaning module before reaching the floor.

An apparatus for cleaning a surface includes a liquid delivery system for storing cleaning liquid and delivering the cleaning liquid to the surface to be cleaned, a fluid recovery system and a control system. The control system includes a controller that is coupled to a sensing assembly. Methods of operating the same include sensing foam or liquid with the sensing assembly.

The present disclosure provides robotic systems and methods. The robotic systems and methods may be used to clean an area or environment.

A suction foot assembly having a suction foot with a suction foot holder, a coupling portion, and a suction foot interface. One of the coupling portion and a coupling end of the suction foot interface has a pin portion. The other of the coupling portion and the coupling end has first and second clamping elements that are mutually opposite, have free ends, and run concavely in such a manner that a receptacle portion in which the pin portion is received is formed between the clamping elements. The mutual spacing of the free ends of the clamping elements is less than the spacing of the clamping elements in the receptacle portion. One or both clamping elements is/are elastically deformable to permit the pin portion to be moved by way of the free ends out of the receptacle portion and into the latter.

A floor cleaning machine having a machine housing, cleaning-liquid and dirty-liquid tanks received in the machine housing, a chassis with front and rear wheels spaced apart along a longitudinal axis and facilitating movement of the machine housing over a floor surface, a cleaning device configured to clean the floor surface, a cleaning liquid applicator that dispenses a cleaning liquid from the cleaning-liquid tank to a region of the cleaning device, and a dirty-liquid intake that is in fluid communication with the dirty-liquid tank and configured to intake liquid on the floor surface and discharge the liquid to the dirty-liquid tank. The dirty-liquid intake being disposed on the machine housing behind the rear wheel and being movable relative to the machine housing between a retracted position and an extended position. The dirty liquid intake is closer to the rear wheel when disposed in the retracted position.

A hand-guided floor cleaning machine with a base, a driven brush element that is configured to engage with a floor surface in a cleaning plane, a fluid applicator for applying cleaning liquid to the floor surface, and a suction foot that is secured via a mount on the base and configured to receive dirty liquid from the floor surface. The mount has a first pivoting arm, which is articulated on the base with the machine end so as to be pivotable about a first pivot axis which runs parallel to a cleaning plane, a guide wheel, which is coupled to the first pivoting arm, and a second pivoting arm, which is articulated on the first pivoting arm so as to be pivotable about a second pivot axis which runs parallel to the first pivot axis. The suction foot is attached to a distal end of the second pivoting arm.

A nozzle for a cleaner has a nozzle housing, and first and second rotation cleaning units arranged on a lower side of the nozzle housing and spaced apart from each other. Each of the first and second rotation cleaning units includes a rotation plate coupled to a mop. The nozzle includes a first driving device having a first driving motor to drive the first rotation cleaning unit and a second driving device having a second driving motor to drive the second rotation cleaning unit. Further, the nozzle has a water tank mounted on the nozzle housing to store water. The nozzle housing includes driving unit covers arranged to surround each of the driving devices. At least one of the driving unit covers includes a first protruding surface, and a second protruding surface positioned higher than the first protruding surface.

A surface cleaning apparatus such as an extractor has a fluid flow path extending from a dirty fluid inlet head to a clean air outlet. The fluid flow path upstream of the separation stage comprises a removable portion.