A water supply mechanism and an automatic cleaning apparatus are provided. The water supply mechanism is applicable for a wet cleaning assembly of a cleaning device, comprising a water outlet device, wherein the water outlet device is connected to a cleaning liquid outlet of a water tank, and a cleaning liquid in the water tank flows to the water outlet device through the cleaning liquid outlet of the water tank and is transported to a surface to be cleaned through the water outlet device.

Provided are a driving robot apparatus, a control method of the driving robot apparatus, and a computer-readable recording medium having recorded thereon a computer program to cause the control method to be performed. The control method of the driving robot apparatus includes: obtaining, via a sensor, a load value of a rotary motor of the driving robot apparatus as the rotary motor rotates a holder; identifying water content of a cleaning pad fixed to the holder, based on the load value of the rotary motor; and controlling a cleaning assembly to supply water to the cleaning pad fixed to the holder, based on the load value of the rotary motor.

A detachable structure and a self-moving robot are provided. The detachable structure is provided in a self-moving robot including a wet cleaning apparatus. The wet cleaning apparatus includes a housing and a cleaning assembly disposed in the housing, and the detachable structure includes: a pressure plate having a connection end and a movable end. The movable end is adjustably clamped to the housing. When the movable end and the housing are in a clamped state, the movable end blocks a partial structure of the cleaning assembly such that the cleaning assembly abuts against the housing; and when the movable end and the housing are in a non-clamped state, the cleaning assembly is removable from the housing.

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.

An autonomous apparatus, such as an autonomous robot, maintains wood decks by automatically cleaning and staining the deck while traversing the deck in a manner so that the cleaning and staining is performed in accordance with an organized navigation pattern along the deck boards.

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.

A handheld extraction cleaner includes a unitary body provided with a carry handle, and further provided with a supply tank, a recovery tank, and a suction source, all of which are carried on the unitary body. The various components of the extraction cleaner can be arranged for a balanced weight in hand. The supply and recovery tanks are configured to optimize the usable volume within the tanks, among other functions. A powered cleaning head including a removable brushroll is provided on the unitary body.

A surface cleaner with a connection to a high-pressure medium, consisting of a pot- shaped housing (11) open on one side, in which at least one rotor arm (6) is rotatably mounted on a swivel joint (5) in the center of the housing, wherein one or more cleaning nozzles (27) are arranged on the rotor arm (6), which are connected in a fluid-conducting manner to the high-pressure medium guided through the swivel joint (5), wherein the housing (11) is designed to be able to turn 180 degrees for a second operating mode, wherein the surface cleaner can be operated in the at least two different operating modes, wherein the first operating mode consists of a surface cleaning operation with the housing (11) and the cleaning nozzles (27) arranged therein pointing downwards toward a floor, and wherein the second operating mode is designed as a cleaning operation in which the housing (11), turned over 180 degrees with the cleaning nozzles (27) pointing upwards, is directed toward a cleaning surface arranged at a distance from the floor, characterized in that the surface cleaner has a chassis (8, 9, 17) for supporting the housing (11) in the first and second operating positions relative to the floor surface.

A pad particularly adapted for surface cleaning. The pad includes an absorbent core having the ability to absorb and retain liquid material, and a liner layer in contact with and covering at least one side of the absorbent core. The liner layer has the ability to retain and wick liquid material through the liner layer. Cleaning apparatus containing such pads and methods of using such pads are also described.