Oral cavity supporting frame

The utility model provides an oral cavity supporting frame which comprises two symmetrically-arranged elastic plates, connecting mechanisms are arranged at the two ends of the tops of the two elastic plates, angle adjusting mechanisms located on the inner sides of the elastic plates are arranged at the bottoms of the connecting mechanisms, and size adjusting mechanisms are arranged between the adjacent connecting mechanisms. Through the connecting mechanism and the size adjusting mechanism, elastic plates are placed in the oral cavity of a doctor, a medical worker screws an adjusting block with hands to drive threaded rods to rotate, the heights of the two elastic plates can be adjusted through rotation of the two threaded rods, and therefore the medical worker can conveniently adjust the oral cavity of the doctor. In addition, the widths of the two elastic plates can be adjusted through rotation of the two threaded rods, size adjustment is achieved, follow-up treatment of medical staff is facilitated, and th