Patent ID: 8490636

Claim:
An ultrasonic cleaning device adapted to be mounted within a sink having a reservoir with a bottom wall and a drain hole disposed on the bottom wall, the ultrasonic cleaning device comprising: a drain connecting member including a lower tubular portion adapted to be removably inserted into the drain hole, and an upper tubular portion which is disposed above the lower tubular portion, the upper tubular portion having a plurality of spaced holes which are disposed downstream of the reservoir and upstream of the drain hole; a valve member located above the drain hole comprising a barrel wall and a valve portion, wherein the valve portion is located at a bottom end of the barrel wall and has a plurality of spaced holes, wherein the valve portion is sleeved on the upper tubular portion so as to be rotatably movable relative to the upper tubular portion between opened and closed positions, the opened position being defined as when the holes of the valve portion overlap in alignment with the holes of the upper tubular portion and permit liquid communication between the reservoir and the drain hole, and the closed position being defined as when the holes of the valve portion do not overlap in alignment with the holes of the upper tubular portion and do not permit liquid communication between the reservoir and the drain hole; an accommodation chamber defined by the barrel wall and located above the valve portion; and an ultrasonic generating unit disposed in the accommodation chamber and adapted for exerting ultrasonic vibration on liquid within the reservoir.