Patent ID: 7399000

Claim:
A hose lock apparatus for connecting an air suction hose of a vacuum cleaner to a vacuum cleaner body, comprising: a vacuum cleaner hose clamp in a form of a hollow cylinder, engaged with an end of the air suction hose therein, and having at least one locking protrusion along an outer circumference and at least one locking rib on a surface of the hose clamp; and an air inlet configured at the vacuum cleaner body to receive an end of the hose clamp, the air inlet including, at least one insertion hole for receiving each locking protrusion in an inserting direction, at least one seating groove connected to the insertion hole to receive the at least one locking protrusion when the hose clamp is rotated by a predetermined angle such that engagement of the at least one locking protrusion and the at least one seating groove prevents removal of the hose clamp, at least one guiding groove extending along a surface of the air inlet in the inserting direction to receive the at least one locking rib as the hose clamp is inserted in the air inlet, and at least one locking groove spaced from the at least one guiding groove by the predetermined angle and engaging the at least one locking rib of the hose clamp in detent when the hose clamp is rotated by the predetermined angle, thus holding the hose clamp and the at least one locking protrusion in a lock position relative to the air inlet.