Supporting arm of breast ultrasonic inspection instrument

The utility model discloses a support arm of a breast ultrasonic examination instrument, which comprises a bottom plate, universal wheels are arranged at four corners of the lower surface of the bottom plate, mounting blocks are arranged on the left side and the right side of the bottom plate, mounting rods are arranged at the lower ends of the two groups of mounting blocks, and support seats are sleeved at the lower ends of the two groups of mounting rods; the supporting rod is fixedly installed on the upper surface of the bottom plate, a positioning frame is arranged on the right side of the supporting rod, positioning rods are inserted into the lower end of the positioning frame, rotating handles are installed at the lower ends of the positioning rods, and abutting pieces are arranged at the upper ends of the positioning rods; the device is moved to the bedside through universal wheels, then the position of a positioning frame is adjusted so that the positioning frame can frame a bed board, then a rotating