CLEANING DEVICE FOR CLEANING A SURFACE COMPRISING A BRUSH AND A SQUEEGEE ELEMENT Russian patent published in 2016 - IPC A47L11/40 

FIELD: personal use and household items.

SUBSTANCE: present invention relates to a cleaning device for cleaning a surface (20), comprising a nozzle arrangement (10) and a vacuum aggregate (38) for generating an under-pressure in the suction area (34) for ingesting dirt particles (22) and liquid (24). Nozzle arrangement (10) contains one brush (12) rotatable about a brush axis (14). Brush (12) is provided with flexible brush elements (16) having tip portions (18) for contacting the surface to be cleaned and picking up dirt particles (22) and liquid (24) from the surface (20) during a pick-up period when the brush elements (16) contact the surface (20) during the rotation of the brush (12). Linear mass density of a plurality of the brush elements (16) is, at least at the tip portions, lower than 150 g per 10 km and a single squeegee element (32) for pushing or wiping dirt particles (22) and liquid (24) across or off the surface to be cleaned (20) during movement of the cleaning device (100). Squeegee element (32) is spaced apart from the brush (12) and extending substantially along a longitudinal direction (48) is substantially parallel to the brush axis (14). Suction area (34) is defined within the nozzle arrangement (10) between the squeegee element (32) and the brush (12). Drive means for driving the brush (12) in rotation, wherein the drive means are adapted to realize a centrifugal acceleration at the tip portions (18) which is, in particular during a dirt release period when the brush elements (16) are free from contact to the surface during rotation of the brush (12), at least 3,000 m/s².

EFFECT: device for cleaning solid floor is disclosed.

15 cl, 13 dwg, 3 tbl