Upright type vacuum cleaner

An upright type vacuum cleaner, comprising:

• a cleaner body having a vacuum generating apparatus disposed therein and a suction brush disposed at a lower portion thereof;
• a cyclone unit for separating contaminants from contaminant-laden air being drawn into the cleaner body and discharging a contaminant-free air through an outflow passage interconnected with the vacuum generating apparatus, the contaminant-laden air being drawn in through an inflow passage interconnected with the suction brush;
• a dust receptacle removably connected to an underside of the cyclone unit, for collecting the contaminants separated from the air by the cyclone unit;
• a locking unit which is longitudinally movable for connecting to and separating the dust receptacle from a lower portion of the cyclone unit by releasably moving the dust receptacle upward and downward;
• and
• a means for preventing an incorrect connection of the dust receptacle to the underside of the cyclone unit.