A maintenance station for maintaining a cleaning robot includes a housing, a cleaning structure, and a liquid supply assembly. The housing includes a guiding platform configured to guide the cleaning robot to park. The cleaning structure is arranged on the housing and positioned corresponding to the guiding platform. The cleaning structure includes a tank body and a cleaning protrusion. The tank body defines a groove, the cleaning protrusion is arranged in the groove, and the cleaning protrusion is configured to clean a cleaning piece of the cleaning robot. The liquid supply assembly is arranged on the housing, the liquid supply assembly defines a liquid supply port, the liquid supply port is positioned above the cleaning structure and configured to supply liquid that flows into the groove by gravity.

The present disclosure discloses a floor cleaning apparatus, comprises a cleaning robot and a washing base, and the cleaning robot comprises a robot main body and a mop assembly; the mop assembly is provided with a turntable-type mop mechanism able to stretch out downwards; the washing base comprises an outer container, a rinse tank and a solution-feeding mechanism. In the technical scheme disclosed, the automatic floor cleaning and finishing cloth washing are achieved so as to realize intelligent automatic cleaning, effectively removing dirt attached to the finishing cloth automatically, and freeing from artificially detaching and then washing the finishing cloth stained with dirt, automatically performing washing operation, and greatly alleviating operation burden of a user. Meanwhile, with the structure of the finishing cloth with a lifting structure, secondary pollution caused by the finishing cloth is avoided.

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 nozzle for a cleaner includes a nozzle housing that has a suction flow path that allows air containing dust to flow therethrough. The nozzle also includes a driving device including a driving motor. Further the nozzle includes a rotation cleaning unit including a rotation plate which is connected to the driving device at a lower side of the nozzle housing. The nozzle also includes a mop attached to a lower side of the rotation plate. In addition, the nozzle includes a water tank mounted on an upper side of the nozzle housing and configured to store water. The water tank is separable from the nozzle housing. An upper side wall of the water tank forms an upper surface of the nozzle when the water tank is mounted on the nozzle housing, and a portion of a bottom wall of the water tank is configured to surround the driving device.

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 liquid storage device includes a first liquid storage structure, a second liquid storage structure, and a liquid guiding assembly. The second liquid storage structure is arranged inside the first liquid storage structure, and the second liquid storage structure is flexible and includes a variable volume. A space between a structural wall of the first liquid storage structure and a structural wall of the second liquid storage structure is configured to store a first liquid, and the second liquid storage structure is configured to store a second liquid. The second liquid is capable of flowing into or flowing out of the second liquid storage structure through the liquid guiding assembly.

The present disclosure provides a dry-wet separation cleaning floor brush. The dry-wet separation cleaning floor brush includes a housing, a stiff roller brush and a soft roller brush, wherein the housing is provided with a partition plate dividing the inner part of the housing into a first storage chamber and a second storage chamber which are disconnected to each other, wherein the stiff roller brush is partially contained in the first storage chamber and is movably connected to the housing, and the stiff roller brush partially protrudes the housing; and the soft roller brush is partially contained in the second storage chamber and movably connected to the housing, and the soft roller brush partially protrudes the housing.

An extractor includes a fluid recovery system including a suction nozzle, a recovery tank assembly, and a suction source having an inlet fluidly connected to the recovery tank assembly and the suction nozzle through an air conduit and adapted to draw liquid through the suction nozzle and deposit the liquid in the recovery tank assembly. The extractor includes a body provided with the air conduit for movement between a first position wherein suction is unreduced and a second position wherein suction is reduced. The extractor includes a fluid delivery system including a solution supply tank assembly, a fluid distributor, and a conduit for depositing fluid onto a surface. The extractor includes a hydraulic connector operably coupled to the body and adapted to move the body between the first and second positions.

A cleaner can include a cleaner main body including a suction motor configured to generate a suction force to suction air containing dust on a cleaning surface, the cleaner main body being configured to separate the dust from the air suctioned; a nozzle placed on the cleaning surface and configured to suck the air containing dust on the cleaning surface; and an extension tube to which the nozzle is detachably connected, one end connected to the nozzle and the other end connected to the cleaner main body to guide the air containing dust from the cleaning surface to the cleaner main body.

A fluid delivery system for a surface cleaning apparatus includes a fluid container configured for storing a fluid, a fluid distributor configured for delivering the fluid to a surface to be cleaned, and a flow controller configured for controlling a flow of the fluid from the fluid container to the fluid distributor. The flow controller includes an adjustable valve and is configured for operating in a first mode of operation that supplies the fluid to the fluid distributor at a first volumetric flow rate; a second mode of operation that supplies the fluid to the fluid distributor at a second volumetric flow rate that is lower than the first volumetric flow rate; and a third mode of operation that supplies the fluid to the fluid distributor at a third volumetric flow rate that is lower than the second volumetric flow rate.