Disclosed herein are a wheel assembly and a robot cleaner including a main body and a wheel assembly coupled to the main body to guide movement of the main body. The wheel assembly has a rotation arm including a first end portion rotatably mounted on the main body, a drive wheel rotatably installed on a second end portion of the rotation arm opposite the first end portion, and an elastic member including a first end installed at the main body and a second end vertically moveably installed at the rotation arm opposite the first end, such that a reduction degree of a contact force due to a descent of the drive wheel.

A cleaning machine may include: a first brush comprising a first brush shaft extending in a left-right direction and a first brush body held by the first brush shaft; a second brush comprising a second brush shaft extending in the left-right direction and a second brush body held on the second brush shaft; a brush supporting member supporting each of the first brush and the second brush such that the first brush and the second brush are rotatable; a body supporting the brush supporting member such that the brush supporting member is pivotable; and a pivot mechanism configured to pivot the brush supporting member with respect to the body. At least the first brush may move with respect to the body in an up-down direction when the brush supporting member pivots with respect to the body.

A cleaning device designed to clean a surface includes a cleaner nozzle to face the surface to be cleaned and to perform a cleaning action on the surface, where the cleaner nozzle accommodates at least one rotatably arranged brush including flexible brush elements having tip portions which are intended to contact the surface. The cleaning device includes a force-actuable mechanism that is responsive to a change of a user force on the cleaning device acting to press the cleaner nozzle against the surface when the cleaner nozzle is in an operational position on the surface, and that is functional to cause a change of a value of at least one parameter of operation of the cleaning device, thereby enabling more intuitive handling of the cleaning device by a user.

A cleaner includes a body, a left spin-mop module and a right spin-mop module configured to perform mopping, and a water supply module configured to supply water to the left spin-mop module and the right spin-mop module. The water supply module includes a water tank to store water therein, a pump to pressurize the water in the water tank to move the water to the left spin-mop module and the right spin-mop module, a first supply pipe connecting the water tank and the pump, a common pipe connected to the pump, the common pump configured to guide movement of the pressurized water from the pump, a first branch pipe configured to guide a first portion of the water in the common pipe to the left spin-mop module, and a second branch pipe configured to guide a second portion of the water in the common pipe to the right spin-mop module.

A robot cleaner is disclosed, which comprises a main body forming an external appearance, a water bucket unit provided in the main body, supplying water to a water mop, a driving wheel rotated by a rotational force of a driving motor provided in the main body, moving the main body, and a wiper module provided in the water bucket unit, wherein the wiper module is extended to front and rear directions of the driving wheel and formed to be protruded toward the floor where the main body drives.

A method for processing a map of a closed space is provided. The method includes obtaining a plurality of self-locations of a mobile device. The method also includes obtaining a plurality of obstacle locations. The method also includes obtaining a boundary profile based on the obstacle locations, the boundary profile being a closed line formed by sequentially connecting multiple adjacent obstacle locations. The method also includes obtaining a self-circle based on the self-locations of the mobile device, the self-circle being a closed line formed by sequentially connecting multiple adjacent self-location of the mobile device. The method also includes determining the boundary profile as an outer profile when the boundary profile encircles the self-circle at an outer side of the self-circle. The method further includes processing the map of the closed space based on the outer profile.

The present disclosure relates to an autonomous cleaning robot. The autonomous cleaning robot may include a main body (1) and a cleaning assembly. The cleaning assembly is mounted on the main body (1). The cleaning assembly may include a first cleaning subassembly (2) removable and provided on the main body (1). The first cleaning subassembly (2) is moved in the forward direction or the backward direction of the main body (1) when the first cleaning subassembly (2) is loaded or removed from the main body (1). The first cleaning subassembly (2) is removable and connected to the main body (1) through a connecting member.

A cleaning device includes: a main body having a roller apparatus and a suction apparatus, the roller apparatus defining a line of movement of the cleaning device, the suction apparatus opening out into a suction opening which is arranged on a side of the main body facing a floor to be cleaned, the suction opening being bordered by a first wall and a second wall, the first wall and the second wall running transversely to a line of movement. A lip with an elastic design, which when the cleaning device is used as intended lies on the floor to be cleaned, is assigned to the suction opening. When the cleaning device is moving in a first direction of movement along the line of movement, the lip rests against the first wall.

An apparatus for cleaning a floor includes a housing, wheels by which the apparatus is adapted to move; a motive device for moving the apparatus, a steering mechanism, and a cleaning assembly including a cleaning unit and an offset mechanism adapted to move the cleaning unit to or from an offset position projecting beyond one lateral side of the apparatus. In another embodiment, an apparatus for cleaning a floor includes a housing, wheels by which the apparatus is adapted to move, a motive device for moving the apparatus, a steering mechanism, and a cleaning assembly including a cleaning unit and a swing mechanism indirectly linking the cleaning unit to the steering mechanism such that when the apparatus is in an operative mode, the cleaning unit reorients its position in synchronization with the path of travel of the apparatus. Optionally, a lifting device may raise and lower the cleaning assembly.

The present disclosure provides cleaning robot, including a cleaning agent mopping device (1), a cleaning agent absorbing device (2), a water wiping (3) and washing device (4), and a water absorbing device arranged in turn along a moving direction of the cleaning robot. Each time when the cleaning robot of the present disclosure works to clean the to-be-cleaned surface, the cleaning robot can perform the four steps including cleaning agent mopping, cleaning agent absorbing, water wiping and washing, and water absorbing, thus, both hydrolysable and non-hydrolysable stains can be effectively cleaned by the cleaning robot. Thus, the cleaning robot is very practical, easy to operate, and simple to use.