CYCLONE TYPE DUST COLLECTING DEVICE FOR VACUUM CLEANER Russian patent published in 2005 - IPC

FIELD: equipment for vacuum cleaning.

SUBSTANCE: dust-collecting device includes housing of cyclone collector having opening for air inlet and opening for discharging air and housing of cyclone collector for creating vortex air flow laden with dust and dirt and entering through air inlet opening. Reservoir for collecting dust and dirt separated by action of centrifugal force created by means of vortex air flow inside housing of cyclone collector is joined with housing of cyclone collector. Grid member is arranged near opening for discharging air in housing of cyclone collector; said member prevents passing of dust and dirt separated from air in reverse direction through opening for discharging air in housing of cyclone collector. Grid member includes ducts passing through it and communicating with opening for discharging air. Unit for cleaning grid member automatically removes finely divided dust from said member and it operates at operation of vacuum cleaner. Said unit includes mechanism for rotating grid member and member for removing dust arranged at one side inside housing of cyclone collector for engagement with outer circular periphery of rotating grid member. Mechanism for rotating grid member includes rotary member arranged near upper part of housing of cyclone collector and designed for creating rotary support of grid member rotating relative to housing of cyclone collector and for rotating together with grid member. Rotary member is joined with grid member by means of connection members; upper surface of housing of cyclone collector except opening for air discharging is arranged between rotary member and grid member. Rotary member includes toothed portion formed around its outer circular periphery; source of driving force for rotating rotary member; unit for transferring power of driving-force source to rotary member.

EFFECT: simplified maintenance of grid member due to elimination of separate operations for automatically cleaning grid member at operation of vacuum cleaner.

8 cl, 7 dwg