A surface cleaner may have various features including an engagement mechanism secured to an agitator support frame and positioned to be pivoted by an agitator lift lever as the agitator lift lever translates, the pivoting engagement mechanism lifting the agitator support frame and the agitator secured thereto from a lowered position to a raised position. Other features may include a projection to limit belt slack when the agitator assembly is raised, a compact detent mechanism for releasing a spine assembly in an upright surface cleaner, a compact motor drive assembly, a self-priming centrifugal pump, a fluid-dispensing system having a high flow operating state and a low flow operating state, and a clean-out tray in which a base of the surface cleaner may be docked.

A robot cleaner includes: a base body forming a bottom part of a cleaner body; a first wheel module and a second wheel module installed to be spaced apart from each other, and configured to moveably support the base body; a suction motor module and a battery module provided between the first and second wheel modules; and a suction nozzle module provided at a front side of the suction motor module and the battery module, and configured to suck air of a region to be cleaned, wherein a plurality of module accommodation portions which are open towards a lower side of the robot cleaner are formed at the base body, and wherein the first wheel module, the second wheel module, the suction motor module, the battery module, and the suction nozzle module are inserted into the module accommodation portions, respectively, in parallel to each other.

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.

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 roller assembly for a mobile cleaning system for cleaning a work surface can include a drive shaft, a sheath, a bushing, and a bushing shroud. The drive shaft can be rotatable about a drive axis, and the drive shaft can include a driven end and an opposite bushing end. The sheath can be supported by the drive shaft and the sheath can be rotatable with the drive shaft. The sheath can include a shell engageable with the work surface. The bushing can be located about the bushing end of the drive shaft. The bushing shroud can be connected to the bushing. The sheath and the drive shaft can be together rotatable with respect to the bushing and the bushing shroud, the bushing shroud can include an outer portion defining a first radius of curvature and a recessed portion connected to the outer portion.

A cleaning system may have a brush roller that moves dust and debris towards a duct opening for collection. The cleaning system may be an autonomous vacuum robot or include an autonomous vacuum robot. The cleaning system may include guards that reduce the likelihood that fibrous debris wraps around rotating portions of the brush roller (e.g., around a drive pinion). Buffer zones in the brush roller may receive fibrous debris that would otherwise wrap around the brush roller and increase undesirable friction during operation. The brush roller is configured to be unlocked from a position contacting the inner surface of a cleaning head of the cleaning system. The fibrous debris stored in the buffer zones may be suctioned into a debris collection compartment of the cleaning system after the brush roller is unlocked. The cleaning system includes a wedge to seal a cavity for ingesting debris within the cleaning head from the environment.

Disclosed is an autonomous vacuum system that detects and responds to obstructions in a cleaning channel of the vacuum. Pressure sensors repeatedly measure pressure at different points in the cleaning channel, and the autonomous vacuum system analyzes the pressure measurements to determine whether an obstruction is likely present. Such a determination may be made based on, e.g., computed pressure differentials across the pressure sensors, and/or pressures of individual pressures sensors. The autonomous vacuum system can respond to the detection of an obstruction by, for example, performing a change in vacuum speed, such as ramping up to or near a maximum speed, and then decreasing again to a more normal speed.

An autonomous vacuum includes mopping and sweeping functionalities. A magnetic locking system secures a cleaning head of the autonomous vacuum into a mopping position when in a mopping state, allowing the vacuum to move a mop roller back and forth to scrub stubborn stains on a floor surface without the cleaning head shifting into an alternate sweeping position. The autonomous vacuum also includes snorkel ducts to direct fluid waste and water from the mop roller to a waste bag without mixing the fluid waste with dry waste collected by a sweeping system. The snorkel ducts are configured to kink shut when the cleaning head is in a sweeping state, to avoid unnecessary suction through the snorkel system. Additionally, the mopping system includes cleaning logic routines that can sense and control mop roller saturation and drying, and that can perform automatic mop cleaning.

A vacuum cleaner of the present disclosure includes a cleaner body having a suction motor provided inside thereof and a handle provided outside thereof, and a suction nozzle connected to the cleaner body, wherein the suction nozzle includes a housing having at least part of a front portion opened, and a rotary cleaning unit disposed inside the housing, having at least part thereof exposed through the opening of the housing, and configured to clean a floor by a rotating operation, wherein the rotary cleaning unit includes a cylindrical nozzle body rotatably installed inside the housing, and fiber filaments and metal filaments disposed on an outer circumferential surface of the nozzle body.

The present invention is directed to inventive embodiments of a vacuum cleaner apparatus having a brush assembly which provides effective cleaning with reduced suction and intake area. The brush assembly has a brush core with an outer surface and an inner surface defining a cavity. The brush core is rotatably suspended within an intake area defined by a housing. A bearing within the cavity allows the brush core to rotate via the bearing with respect to the housing. A plurality of agitators extends radially from the outer surface of the brush core to agitate dirt and other debris. Finally, a motor is disposed within the cavity defined by the inner surface of the brush core. The motor is mounted to the housing such that the brush core may rotate relative to the motor and the motor is configured to rotationally drive the brush core about the motor.