CYCLONE-TYPE DUST CATCHER FOR VACUUM CLEANER Russian patent published in 2004 - IPC

FIELD: mechanical engineering, in particular, vacuum cleaning equipment.

SUBSTANCE: cyclone-type dust catcher has cyclone casing including first connecting pipe joined to extension pipe adjacent to vacuum cleaner suction channel, second connecting pipe joined to extension pipe adjacent to vacuum cleaner casing, and air inlet channel communicated with first connecting pipe. Air outlet channel is joined to second connecting pipe. Cyclone casing is adapted for creating of air vortex flow from dust-laden air sucked through air inlet channel. Removable dust collector is attached to cyclone casing and adapted for receiving of contaminants separated from air by vortex flow. Grid-type unit is arranged in the vicinity of air outlet channel. Equally spaced longitudinal slots are formed at outer periphery of main portion of grid-type unit to define air passage leading to air outlet channel. Grid-type unit is adapted for preventing contaminants collected in dust collector from flowing back through air outlet channel of cyclone casing. Cleaning member is positioned for moving up and down over outer peripheral surface of grid-type unit main portion to provide for removal of contaminants stuck in and around related longitudinal slots of grid-type unit. Drive lever is joined with its one end to cleaning member central part. Other end of drive lever extends beyond cyclone casing through internal part of grid-type unit main portion. Drive lever is adapted for moving cleaning member in up and down direction.

EFFECT: increased efficiency, simplified construction and easy removal of contaminants from grid-type unit.

4 cl, 3 dwg