Patent ID: 7500283

Claim:
A vacuum cleaner comprising: a suction inlet formed at a main body; a cover hinge-coupled to the main body to cover a dust collection chamber defined in the main body; and a locking unit for releasably locking the cover, the locking unit being disposed around the suction inlet, wherein the locking unit includes a pair of locking members disposed at two opposite sides of the suction inlet and a resilient member disposed between the locking members to bias the locking members outward, each locking member having an engagement protrusion projected outward; the cover includes an outer portion and an engagement portion each of which has an approximate U-shape in section, the engagement portion having at both its sides a pair of button portions projected through the outer portion and a pair of pressing portions extended from the respective button portions inside the outer portion, the outer portion having a pair of projecting portions projected inward from both sides of the outer portion, the projecting portions being engaged with the respective engagement protrusions of the locking members when the cover is closed.