An electrostatic cleaning device includes: a static electricity generator configured to generate static electricity; a handle part connected to one side of the static electricity generator; and a cleaning tool adapted to be assembled to and disassembled from the static electricity generator. The static electricity generator includes a first electrified body part configured as a donut-shaped case and configured to deliver a negative charge to the cleaning tool; a belt rotatably installed in an inner space of the first electrified body part and configured to transfer the negative charge; and a second electrified body part configured to supply the negative charge to the belt.

A suction tool for a vacuum cleaner includes an outlet for connection to a vacuum cleaner; a main inlet in fluid communication with the outlet via a main suction passage; and an auxiliary inlet in fluid communication with the outlet via an auxiliary suction passage. The auxiliary suction passage includes a flow limiting device which is movable between first and second configurations, the flow limiting device obstructing air flow through the auxiliary suction passage to a greater extent when in the second configuration than when in the first configuration. The flow limiting device is configured to move to the second position in response to the pressure within the main suction passage dropping beneath a predetermined threshold.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a National Phase Application under 35 U.S.C. § 371 of International Application No. PCT/KR2020/017380, filed on Dec. 1, 2020, which claims priority to Korean Application No. 10-2019-0159187, filed on Dec. 3, 2019. The disclosures of the prior applications are incorporated by reference in their entirety.

A vacuum cleaner includes a main body and a suction nozzle. The suction nozzle includes a housing and a rotating brush. The rotating brush includes a first rotating brush, a second rotating brush, and a coupler. The coupler couples the first rotating brush and the second rotating brush so that a rotation axis of the first rotating brush and a rotation axis of the second rotating brush are positioned on the same line.

A brushroll is provided. The brushroll includes a rolling body and a plurality of brush strip sets. The plurality of brush strip sets extend along an axial direction of the rolling body and are arranged at intervals along a circumferential direction of the rolling body. The brush strip set includes a first brush strip and a second brush strip. Both the first brush strip and the second brush strip are protruded from an outer surface of the rolling body, and are continuous along the axial direction of the rolling body. A circumferential spacing between the first brush strip and the second brush strip in a same one of the brush strip sets is less than a circumferential spacing between two adjacent ones of the brush strip sets.

A vacuum cleaner includes a base having an agitator chamber and a suction nozzle opening in fluid communication with the agitator chamber. A brushroll is positioned within the agitator chamber for rotational movement. The brushroll includes a brush dowel provided with a plurality of bristles. The brush dowel has a plurality of ribs.

A cleaner head for a vacuum cleaning appliance includes a housing, a front agitator and a rear agitator. A suction chamber is located between the front agitator and the rear agitator. A baffle is located within the suction chamber between the agitators. During use of the cleaner head, debris becomes entrained within air drawn towards the suction chamber. Guide members mounted on the housing guide the entrained debris towards the suction chamber, whereas the baffle guides the air upwardly towards a central suction port of the suction chamber.

A cleaning device including a suction motor; a suction head including a suction port; a rotatable brush inside the suction head; a brush motor; a pressure sensor; a memory storing coefficient tables including coefficients of a hyperplane equation for determining a type of surface to be cleaned; and a controller. The controller is configured to, in a first state with the suction head separated from the surface, select a reference coefficient table corresponding to a first suction pressure and a first load of the brush motor, in a second state with the suction head in contact with the surface, identify a type of the surface based on a second suction pressure, a second load of the brush motor, and the reference coefficient table, and adjust an output of the suction motor and/or the brush motor based on the identified type of the surface to be cleaned.

A cleaner head for a vacuum cleaner includes a single agitator rotatably mounted within a housing, the agitator being arranged transversely within the housing such that it is perpendicular to the direction of travel of the cleaner head during use, the agitator being conical in shape, such that a first end has a larger diameter than a second end.

A toilet brush comprises a handle and a brush head. A backbone core is coupled to the handle. An inner support piece is further coupled to the backbone core and to the brush head. The handle further comprises an attachment area and the brush head further includes a scraping feature.

A liquid-permeable brush roll may include a main body having a radial surface, a cavity having an open end, a stopper removably coupled to the main body at the open end of the cavity, and one or more weep holes defined in the radial surface of the main body and fluidly coupled to the cavity. The cavity extends within the main body and is configured to store a cleaning fluid therein.