Patent ID: 8435318

Claim:
A vacuum cleaner, comprising: a brush assembly to contact a surface to be cleaned and to suction air containing dusts; a main body connected to the brush assembly; the main body comprising: a fan motor unit to generate a suction force upon the brush assembly; a centrifugal separating portion to separate dusts from air stream suctioned through the brush assembly; a dust collection unit-seating portion provided below the centrifugal separating portion to mount a dust collection unit therein, the dust collection unit receiving the dusts separated by the centrifugal separating portion; and a fastening unit installed on a bottom of the dust collection unit-seating portion to ascend or descend the dust collecting unit by a manual operation so that the dust collection unit is fixed to or separated from the dust collection unit-seating portion, wherein locking protrusions are provided at opposite sides of the dust collection unit-seating portion, the locking protrusions being protruded vertically inward the dust collection unit-seating portion, wherein locking holes are provided at the opposite sides of the dust collection unit to correspond to the locking protrusions, the locking holes being recessed from an outer surface of the dust collection unit, whereby when the dust collection unit has been descended in the dust collection unit-seating portion due to the weight of the dust collection unit by an operation of the fastening unit, the dust collection unit is separated from the fastening unit and suspended to the dust collection unit-seating portion in a state that the locking protrusions of the dust collection unit-seating portion are inserted into the locking holes of the dust collection unit.