The utility model provides an ultrasonic cleaning device which comprises a
machine shell, a cleaning tank is arranged in the
machine shell, the bottom of the
machine shell is in a
funnel shape and is fixedly connected with a drainage
pipe, and the end, away from the cleaning tank, of the drainage
pipe is detachably connected with a sealing cover. The ultrasonic
assembly comprises a mounting base fixedly connected with the machine shell and located in the cleaning tank, a mounting box detachably mounted on the mounting base, a
transducer mounted in the mounting box and an
ultrasonic generator located outside the machine shell, and a wire is further connected between the
ultrasonic generator and the
transducer; the charging
barrel comprises a
barrel body and an annular plate,
water leakage holes are formed in the
barrel body, the annular plate is fixedly connected with one end of the barrel body, and the annular plate is in
lap joint with the machine shell so that the barrel body can be located in the cleaning tank; the material pressing cover comprises a cover plate in
lap joint with the annular plate and a pressing plate abutting against the cover plate, and the pressing plate is located in the cylinder body; the ultrasonic
assembly is located below the barrel. The cleaning tank solves the problems that
silt impurities at the bottom of the cleaning tank are not easy to
discharge and a drainage
pipe is easy to block in the prior art.