Maxilla retractor with built-in nasal cavity

The utility model relates to a nasal cavity built-in type maxilla tractor which comprises a movable traction plate, a fixed traction plate and a rod-shaped connecting piece, the fixed traction plate is fixedly connected with the connecting piece, the connecting piece is provided with a sliding groove in the length direction of the connecting piece, the movable traction plate is provided with a sliding block, and the sliding block is inserted into the sliding groove and can slide along the sliding groove. The sliding block is provided with a rotating hole, the movable traction plate is rotatably inserted into the rotating hole, and a fastening device for fastening the movable traction plate is arranged between the sliding block and the movable traction plate. Due to the fact that the movable traction plate can rotate relative to the sliding block, and the angle between the movable traction plate and the fixed traction plate can be adjusted according to the condition of a patient, attachment of the movable trac