DEVICE FOR SURFACE CLEANING Russian patent published in 2018 - IPC A47L11/40 

FIELD: manufacturing technology.

SUBSTANCE: nozzle structure comprises: brush (12) rotatable about brush axis (14), the brush being provided with flexible brush elements (16) having tip portions (18) for contacting the surface to be cleaned (20) and picking up dirt and/or liquid particles (22, 24) from the surface (20) during the rotation of brush (12). Wherein brush (12) is at least partly surrounded by nozzle housing (28) and protrudes at least partly from bottom side (30) of nozzle housing (28). Nozzle has squeegee element (32) which is spaced apart from brush (12) and attached to bottom side (30) of nozzle housing (28) on first side (31) of brush (12) where brush elements (16) enter nozzle housing (28) during the rotation of the brush (12), wherein the squeegee element (32) is configured for wiping dirt and/or liquid particles (22, 24) across or off the surface to be cleaned (20) during a movement of cleaning device (100). Nozzle includes deflector (150) for contacting brush (12) and deflecting brush elements (16) during the rotation of brush (12), and restriction element (27) for at least partly restricting air from getting sucked into nozzle housing (28) at second side (29) of brush (12), where brush elements (16) leave nozzle housing (28), wherein restriction element (27) is, seen in a rotation direction (26) of brush (12), arranged behind deflector (25), for inserting brush elements (16) into contact with deflector (25) until they pass restrictor element (27) and then removing the nozzle from the lower side (30) from body (28) during rotation of brush (12). Restriction element (27) comprises a mechanically flexible element that is, due to its flexibility, configured to follow an outer surface of brush (12) and to contact tip portions (18) during the rotation of brush (12).

EFFECT: nozzle for the surface cleaning device (100) was proposed.

13 cl, 14 dwg, 3 tbl