A floor cleaning machine having a base, a suction foot, a dirty water tank in fluid communication with the suction foot, a suction turbine, and a separation container. The suction turbine is attached to the base and generates a suction air flow from the suction foot into the dirty water tank. The suction turbine has a housing with an inlet opening and an outlet opening through which air flows. The separation container adjoins the suction turbine housing and has an interior, which that communicates with the inlet opening and a bottom wall section that faces the interior. The bottom wall section is disposed vertically lower than the inlet opening. A drainage opening leads out of the bottom wall section into the environment and is provided with a valve that is closed during operation of the suction turbine is in operation and open when the suction turbine is not operated.

A cleaning apparatus may include: a main-body unit; and first and second dust units, which are alternately attachable to and detachable from the main-body unit. The main-body unit may include: one or more cleaning tools, which brush(es) up waste on a work surface; a main body rotatably supporting the cleaning tool(s); and one or more wheels rotatably supported by the main body and configured such that the cleaning apparatus is movable along the work surface via the one or more wheels. The first dust unit may include: a first container, which is detachable from the main body and is capable of collecting the waste brushed up by the cleaning tool(s). The second dust unit may include: an adapter, which is detachable from the main body; and a second container, which is detachable from the adapter and is capable of collecting the waste brushed up by the cleaning tool(s).

A portable cleaner has a recovery tank, including a container for receiving and storing recovered liquid and/or dirt and an openable tank lid for covering the container. The container and the tank lid are removable from the cleaner as a unit. The portable cleaner also has a main housing configured to removably support the recovery tank in a vertical orientation in which the tank lid at least partially defines a top side of the portable extraction cleaner. In addition, a tank latch is provided in the tank lid, the tank latch configured to selectively secure and release the tank lid to the main housing when the recovery tank is supported by the main housing.

A surface cleaning device comprises a cleaning head having a housing, a fluid tank configured to store fluid and be in fluid communication with the cleaning head, a cleaning pad coupled to the cleaning head and configured to remove debris from a surface, and a plurality of nozzles distributed along the cleaning pad, wherein the fluid tank is configured to release at least some of the fluid such that the released fluid flows through the plurality of nozzles onto the cleaning pad.

A brush head including a central portion centered respective to a rotation axis, an attachment feature configured to secure the brush head for rotation about the rotation axis, and a plurality of lobes. The plurality of lobes extend radially outwardly from the central portion and the rotation axis. At least one lobe extends along a curvilinear path, the curvilinear path extending through the central portion. The lobe has varying widths along the curvilinear path, the varying widths being perpendicular to the curvilinear path.

A floor cleaning and polishing device has a polishing pad for a surface which is rotationally engaged upon a pad driver operatively engaged to a frame. A first set of wheels on the frame allow for tilted movement. A second set of wheels are positionable to a deployed position to elevate the first set of wheels from the surface and position the polishing pad parallel to the surface. The device may have a light projector engageable for light disinfecting. The polishing pads are configured with a plurality of polishing fabric sections separated by recesses therebetween.

Disclosed is a drainage system for an automatic cleaning storage base of an electric mop. The automatic cleaning storage base of the electric mop comprises a casing member having a cleaning tank. The drainage system comprises a drain valve; an outlet end of the drain valve is connected to the outside of the casing member, and an inlet end of the drain valve is connected to the cleaning tank; the drain valve has a switch, and the switch is provided with a first rack; the drain valve is further provided with a duplex gear and a second rack; the duplex gear has a gear portion with a larger outer diameter to mesh with the first rack, and the duplex gear has a gear portion with a smaller outer diameter to mesh with the second rack.

A handheld cleaning device includes a surface-moving portion and an upright portion. The surface-moving portion is in contact with a surface to be cleaned and is connected with the upright portion. The upright portion is configured to move the surface-moving portion in a case in which the surface-moving portion is in operation. The handheld cleaning device further includes a power battery configured to supply power to the handheld cleaning device. The surface-moving portion further includes at least two non-coaxial brushrolls configured to clean stains on the surface to be cleaned. The rotation speed of each brushroll is less than 3000 r/min.

An autonomous floor cleaner can include a housing, a drive system for autonomously moving the housing over the surface to be cleaned, a controller for controlling the operation of the autonomous floor cleaner, a tank adapted to hold liquid, and a carry handle joined with the tank and/or the housing. The carry handle is movable between different positions, including a position in which the autonomous floor cleaner can be lifted via the carry handle while an inlet and/or outlet of the tank is blocked.

A floor cleaner including a base movable over a surface to be cleaned, the base including a front side, a back side opposite the front side, and a brushroll chamber. A supply tank is configured to store a cleaning fluid and a distribution nozzle is in fluid communication with the supply tank, the distribution nozzle operable to dispense the cleaning fluid onto the surface to be cleaned. A brushroll cover is removable from the base to access the brushroll chamber. A brushroll is within the brushroll chamber. The distribution nozzle is disposed adjacent the front side of the base and carried on an upper exterior portion of the base and configured to spray forwardly of the base in a direction from the back side toward the front side.