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 nozzle for a cleaner has a nozzle housing, which has a nozzle base and a drain hole for discharging water from the nozzle housing. The nozzle also has a rotary cleaning unit disposed below the nozzle housing. The rotary cleaning unit has a rotation plate that can be attached to a mop. The nozzle has a driving unit that includes a driving motor for driving the rotary cleaning unit. The nozzle also has a control board for controlling the drive motor. In addition, the nozzle has a water tank detachably mounted on an upper side of the nozzle housing. The water tank stores water and supplies the water to the rotary cleaning unit.

A cleaning head (100, 200) comprising: a suction interface; a suction network connected to the suction interface, the suction network comprising a waste collection port and a waste container (150, 250) interconnecting the suction interface and the waste collection port; a suction compartment in fluid communication with the waste collection port, the suction compartment comprising an elongate entry aperture; a roller cleaner (120, 220) mounted inside the suction compartment, the roller cleaner (120, 220) having an elongate outer surface portion protruding through the elongate entry aperture; a machine compartment (260) inside which a drive mechanism (266) and electronic circuitry (262) are mounted; a storage portion comprising a cleaning liquid container (140, 240) and the waste container (150, 250) mounted on a storage receptacle (118); a cleaning liquid applicator configured to draw cleaning liquid from the cleaning liquid container (140, 240) and to apply the cleaning liquid to the roller cleaner (120, 220), and a waste remover configured to physically interact with the roller cleaner (120, 220) to remove waste therefrom.

A cleaning machine may include: a drive shaft; a rotation transmitting mechanism configured to transmit rotation of the drive shaft; a brush attaching member configured to rotate about a rotation axis; a clutch mechanism coupling the rotation transmitting mechanism with the brush attaching member; a brush attached to the brush attaching member; and a brush moving mechanism configured to move the brush attaching member between an adjacent position adjacent to a working plane and a distant position distanced from the working plane. The clutch mechanism may be configured to transmit the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the adjacent position and cut off transmission of the rotation from the rotation transmitting mechanism to the brush attaching member when the brush attaching member is at the distant position.

A portable surface treatment tool is provided, which is configured for attachment to a suction controller. The portable surface treatment tool is configured for use with vertical, overhead, inclined and horizontal surfaces and includes a head and a handle coupled to the head. The head includes: a rotatable surface treatment unit configured to engage a surface to be treated; a motor configured to drive the rotatable surface treatment unit; and a shroud substantially encasing at least a portion of the rotatable surface treatment unit, the shroud defining a suction region proximal the rotatable surface treatment unit. The suction region is configured to suck fluid from a surface to be treated. The shroud defines a suction connection formation configured to be coupled to a source of suction supplied by a suction controller, the suction connection formation being in fluid communication with the suction region to remove fluid from a surface to be treated.

Disclosed are a robot cleaner and a maintenance device for the same. The robot cleaner includes a body, a traveling module for moving the body, a bottom portion disposed in front of the traveling module for sliding along a floor when the body is moved, and a collection portion disposed in front of the bottom portion, the collection portion having therein a space for collecting foreign matter on the floor. The maintenance device includes a suction port configured to be inserted into the collection portion and a suction channel for guiding the movement of the air suctioned through the suction port.

Disclosed are a robot cleaner and a maintenance device for the same. The robot cleaner includes a body, a traveling module for moving the body, a bottom portion disposed in front of the traveling module for sliding along a floor when the body is moved, and a collection portion disposed in front of the bottom portion, the collection portion having therein a space for collecting foreign matter on the floor. The maintenance device includes a suction port configured to be inserted into the collection portion and a suction channel for guiding the movement of the air suctioned through the suction port.

Disclosed is a robot cleaner including a body having a module location portion, a traveling module for moving the body, and a sliding module having a body location portion detachably coupled to the module location portion, the sliding module being configured to slide along a floor when the body is moved. A mop fixing unit for fixing a replaceable mop is provided between the module location portion and the body location portion.

Disclosed is a robot cleaner including a body having a module location portion, a traveling module for moving the body, and a sliding module having a body location portion detachably coupled to the module location portion, the sliding module being configured to slide along a floor when the body is moved. A mop fixing unit for fixing a replaceable mop is provided between the module location portion and the body location portion.

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.