Handle of oral cavity digital observer

The utility model discloses an oral cavity digital observer handle which comprises a handle body, clamping plates are arranged, the inner sides of the clamping plates are fixedly connected with bearings, the inner sides of the bearings are fixedly connected with second screws, the outer sides of the second screws are in threaded connection with moving plates, and the inner sides of the moving plates are movably connected with first screws through limiting holes. The outer side of the bottom end of the first screw is in threaded connection with a handle body, after a communication line is connected with the handle body, the first screw is rotated anticlockwise to be loosened, after a moving plate is pushed to slide to the length of the line needing to be clamped through a U-shaped limiting hole, the first screw is rotated clockwise to fix the position, and a rotary knob is rotated clockwise to drive the second screw to rotate. The clamping plate is driven by the bearing to move towards the center direction to