A vacuum cleaner includes a suction nozzle defining a nozzle inlet, a manual nozzle height adjustment assembly for adjusting the height of the nozzle inlet relative to a surface to be cleaned, and a bleed valve fluidly connected to a working air path of the vacuum cleaner to selectively open to reduce suction at the nozzle inlet. The bleed valve is incorporated with the nozzle height adjustment assembly such that movement of the nozzle height adjustment assembly between different height settings will automatically open or close the bleed valve.

A robotic vacuum cleaner includes a movable side arm. The side arm is inwardly pivotable into the inside of a housing of the robotic vacuum cleaner by a spring mechanism in the event of contact with an obstacle. The side arm is mounted on a rotary shaft so as to be pivotable and linearly displaceable along an elongate hole.

A roller brush assembly and a cleaning device are provided. The above roller brush assembly is applied in the cleaning device, including: a main roller brush; an electric motor configured to drive the main roller brush to rotate to sweep a surface to be cleaned; and an auxiliary roller brush driven by the main roller brush to rotate and sweep the surface to be cleaned towards the main roller 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.

Provided are a cleaning robot and a method for traveling along an edge, and a readable medium. The cleaning robot includes a body, where a rolling brush and a side brush are provided at a bottom of the body, the rolling brush and the side brush are transversely arranged at a front end of the cleaning robot, and one end of the rolling brush and the side brush are respectively arranged close to edges of two sides of the body; the cleaning robot further includes a control module and a ground medium identification sensor for detecting a type of a work surface, where the ground medium identification sensor sends a detection signal to the control module, and the control module controls the cleaning robot to travel along an edge with one side edge of the body according to the detection signal.

Described herein are systems, devices, and methods for scheduling and controlling a mobile robot using a textual and user experienced-based mission routine. In an example, a mobile cleaning robot comprises a drive system to move the mobile cleaning robot about an environment, a sensor circuit to detect an object in the environment, and a controller circuit to receive a mission routine including data representing an editable schedule including at least one of time or order for performing one or more cleaning tasks with respect to a semantically annotated object that include spatial or contextual information of the detected object, or with respect to user experience or user behavior. The controller circuit navigates the mobile cleaning robot to conduct a mission in accordance with the mission routine.

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 surface cleaning apparatus can include a housing adapted to move across a surface to be cleaned, an edge brush, and a brushroll driven by a brush motor. The edge brush is connectable with a drive coupling for rotating the edge brush, and is indirectly driven by the brush motor via the brushroll. In one aspect, the edge brush and drive coupling comprise a modular unit removably coupled to the housing. In another aspect, the drive coupling can include a worm and a belt.

A roller brush assembly and a cleaning device are provided. The above roller brush assembly is applied in the cleaning device, including: a main roller brush; an electric motor configured to drive the main roller brush to rotate to sweep a surface to be cleaned; and an auxiliary roller brush driven by the main roller brush to rotate and sweep the surface to be cleaned towards the main roller brush.

Disclosed are a nozzle unit and a robot cleaner including same. The nozzle unit according to various embodiments of the present invention comprises a main brush for collecting waste such as hair and a sub brush for separating the waste such as hair attached to the main brush. The sub brush is provided with various members according to the embodiment, and separates the waste such as hair attached to the main brush. Thus, the waste such as hair can be easily collected, separated, and captured. Accordingly, user convenience can be enhanced.