A wheel driving device includes: a motor rotating a shaft: an input gear fixed to the shaft; at least one transmission gear meshed with the input gear to transmit power of the motor; and a final gear meshed with the transmission gear and connected with a wheel via an axis to transmit the power from the transmission gear to the wheel. The wheel driving device includes an extraction gear meshed with the final gear or the transmission gear, and a power transmission part connected with the extraction gear to transmit the power from the extraction gear to a cleaner head.

An autonomous cleaning robot comprises a chassis, at least one motorized drive wheel mounted to the chassis and arranged to propel the robot across a surface, and a pair of cleaning rollers mounted to the chassis and having outer surfaces exposed on an underside of the chassis and to each other. The cleaning rollers are drivable to counter-rotate while the robot is propelled, thereby cooperating to direct raised debris upward into the robot between the rollers. A side brush is further mounted to the chassis to rotate beneath the chassis adjacent a lateral side of the chassis about an upwardly extending side brush axis, and the outer surface of a first of the cleaning rollers of the pair extends laterally beyond the outer surface of a second of the cleaning rollers of the pair and laterally beyond the side brush axis, such that the first cleaning roller defines a cleaning width spanning the side brush axis.

A mobile robot of the present disclosure includes a first pattern emission unit configured to emit a first patterned light downward and forward from the main body on a floor of an area to be cleaned; and an image acquisition unit configured to acquire an image of first patterned light emitted by the first pattern emission unit and incident on an obstacle. A pattern is detected from the acquired image to determine an obstacle, and a cliff is detected based on at least one of a shape or a position of the pattern in the image. The mobile robot may identify a travel path that does not lead to the cliff.

An autonomous mobile robot includes a housing infrastructure, a drive system including one or more wheels to support the housing infrastructure above a floor surface, a cleaning assembly, electrical circuitry positioned within the robot housing and an electrostatic discharge assembly including an electrostatic discharge member that includes fibers electrically connected to the electrical circuitry and extending, from the electrical circuitry, to an exterior of the housing infrastructure. The electrical circuitry includes a controller to initiate a cleaning operation in which the drive propels the robot across the floor surface while the cleaning assembly cleans the floor surface.

The present disclosure relates to a cleaning device and a sweeping assembly thereof. The sweeping assembly includes: a brush holder; a brush body arranged in the brush holder, and including a cleaning part and a connecting part connected to each other, the connecting part being further connected to the driver to rotate the brush body, the cleaning part including a brush member protruding outward therefrom; and an anti-winding structure arranged at the connecting part, and configured to fill up a gap between the brush holder and the connecting part.

To prevent a self-propelled vacuum cleaner from falling down an inclined surface, even if the remaining capacity of the battery becomes zero when the cleaner is located on the inclined surface. The self-propelled vacuum cleaner comprises a housing provided with an electrically powered traveling mechanism for traveling on a floor surface, an electrically powered cleaning mechanism for cleaning while traveling on the floor surface, a battery, and a control unit for controlling and supplying electric power from the battery to the electrically powered traveling mechanism and the electrically powered cleaning mechanism, wherein the control unit controls travel of the housing stopping on an inclined surface inclined relative to a horizontal surface, so as to move the housing from a direction in which the housing attempts to travel on the inclined surface by the weight of the cleaner to a direction in which the housing does not fall down by the weight of the cleaner, and then to stop a supply of electric power to the electrically powered traveling mechanism.

A cleaning accessory for a vacuum cleaner comprises a housing. A rotatable cleaning brush is rotatably mounted to the housing. The rotatable cleaning brush has at least one flexible cleaning element projecting outwards from a side of the housing. The at least one flexible cleaning element is configured to rotate and engage with a surface to be cleaned. A dirt deflector projects from the side of the housing and is configured to surround at least part of the perimeter of the rotatable cleaning brush.

A robotic cleaner includes a housing, a suction conduit with an opening, and a leading roller mounted in front of a brush roll. An inter-roller air passageway may be defined between the leading roller and the brush roll wherein the lower portion of the leading roller is exposed to a flow path to the suction conduit and an upper portion of the leading roller is outside of the flow path. Optionally, a combing unit includes a plurality of combing protrusions extending into the leading roller and having leading edges not aligned with a center of the leading roller. Optionally, a sealing strip is located along a rear side of the opening and along a portion of left and right sides of the opening. The underside may define side edge vacuum passageways extending from the sides of the housing partially between the leading roller and the sealing strip towards the opening.

A robot including a main brush; a peripheral brush; a first actuator; a first sensor; processors; and memory storing instructions that when executed by the processors effectuate operations. The operations include determining a first location of the robot in a working environment; obtaining first data from the first sensor or another sensor indicative of a value of an environmental characteristic of the first location; adjusting a first operational parameter of the first actuator based on the sensed first data; and forming or updating a debris map of the working environment based on data output by the first sensor or the another sensor configured to collect data indicative of an existence of debris on a floor of the working environment over at least one cleaning session.

An autonomous surface cleaning apparatus includes a body, a drive system carried by the body, and a cleaning assembly disposed at a front of the body. The cleaning assembly includes a housing defining a suction chamber and a suction channel extending from the suction chamber to a suction channel opening provided in a first side surface of the cleaning assembly, and a side suction nozzle mounted to an extension and retraction assembly that is arranged to allow the side suction nozzle to be moved between an extended position. The side suction nozzle includes a first resilient blade and a second resilient blade, the first resilient blade being arranged such that a surface of the first resilient blade is substantially forward facing and the second resilient blade being arranged such that a surface of the second resilient blade is substantially downward facing.