A cleaning device including a cleaning component (1) and a cleaning aid member (2) is provided. The cleaning component (1) includes a first annular cleaning belt (11), a first roller (12), and a second roller (13). The first roller (12) and the second roller (13) are spaced apart and the second roller (13) is disposed above the first roller (12). The first annular cleaning belt (11) rotatably surrounds the first roller (12) and the second roller (13). The first annular cleaning belt (11) is configured to clean a surface to be cleaned. The cleaning aid member (2) is disposed behind the cleaning component along a forward direction of the cleaning device, and the cleaning aid member (2) is configured to assist the first annular cleaning belt (11) in cleaning trash.

Method and apparatus for cleaning an interior volume of an electrical component are provided. The apparatus includes a housing with vacuum pins extending from apertures in the housing. The vacuum pins are arranged and sized to fit through ventilation holes in a chassis of the electrical component. The vacuum pins are individually retractable so that a vacuum pin that encounters a structure in the interior volume of the electrical component does not impede remaining vacuum pins from further entering the volume. A vacuum source is attachable to the housing and applies a vacuum to the interior volume through the vacuum pins.

An autonomous coverage robot includes a cleaning assembly having forward roller and rearward rollers counter-rotating with respect to each other. The rollers are arranged to substantially maintain a cross sectional area between the two rollers yet permitting collapsing therebetween as large debris is passed. Each roller includes a resilient elastomer outer tube and a partially air-occupied inner resilient core configured to bias the outer tube to rebound. The core includes a hub and resilient spokes extending between the inner surface of the outer tube and the hub. The spokes suspend the outer tube to float about the hub and transfer torque from the hub to the outer tube while allowing the outer tube to momentarily deform or move offset from the hub during impact with debris larger than the cross sectional area between the two rollers.

The present disclosure provides a pet care machine, including a machine housing, internally provided with an air channel having at least one air channel inlet and at least one air channel outlet; an electric fan, configured to stir air and form an air flow flowing into at least one air channel inlet and out of at least one air channel outlet; a combing member, comprising at least one group of comb teeth, wherein the comb teeth has a received state and an extended state; a motion area, located outside the air channel and communicating at least one air channel outlet with at least one air channel inlet and providing a space for transition of the comb teeth between the extended state and the received state.

A nozzle arrangement faces a surface to be cleaned includes a first suction body and a second suction body located at a distance relative to each other. The nozzle arrangement further includes a level setting mechanism that puts the first suction body and the second suction body at different overall levels relative to the surface in a normal, operational orientation of the nozzle arrangement on the surface. In this way, cleaning performance of the nozzle arrangement can be improved. Additionally, or alternatively, it is possible to have a suction enhancing mechanism for at least partially closing at least one of the first suction body and the second suction body to one of the surface and an internal air conduit of the nozzle arrangement.

A vacuum tool configured to be removably coupled to hose or wand of a vacuum includes a body including a first end, a second end, and a first longitudinal axis extending between the first end and the second end. The vacuum tool also includes a head coupled to the first end of the body, a connection portion coupled to the second end of the body and configured to couple the body to a hose or wand of a vacuum cleaner, and a brush coupled to the head. The brush includes an elongate support defining a second axis perpendicular to the longitudinal axis of the body and configured to couple the brush to the head, and a plurality of bristles positioned on the elongate support.