Ultrasonic scanning device

The utility model relates to the technical field of ultrasonic scanning, and discloses an ultrasonic scanning device, which comprises a bottom plate, a motor is fixedly arranged on the outer surface of the top of the bottom plate, the output end of the motor is fixedly connected with a driving gear, the inner ring of a bearing is fixedly connected with a rotating drum, the outer surface of the rotating drum is fixedly sleeved with a driven gear, and the driven gear is fixedly connected with the rotating drum. A rotary disc is fixedly connected to the outer surface of the top of the rotary drum, and a fixed drum is fixedly connected to the outer surface of the top of the rotary disc. According to the ultrasonic scanning device, the first gear and the second gear are arranged and are matched with the motor and the ultrasonic probe, so that the problems that when an existing ultrasonic scanning device detects flaws of a steel pipe, the ultrasonic probe is manually held by a hand to scan the surface of the steel