Lower jaw bracket device special for anesthesia on operating bed

The utility model discloses a special mandible bracket device for anesthesia of an operating bed, which comprises a support plate, movable plates are hinged to the bottoms of two ends of the support plate, and a threaded rod is mounted at the center of the bottom of the support plate in a threaded manner. The movable plates hinged to the two ends of the supporting plate can be folded and conveniently stored, the arc-shaped clamping grooves in the bottoms of the movable plates can be fixed to handrails on a bed body, the height of the bottom plate can be adjusted by rotating the threaded rods, and the supporting plate can be tightly attached to the chins of different patients through elasticity of the first springs; the supporting plate can move to drive the gear rack to move, the gear rack can drive the supporting arms to be tightened or unfolded through the teeth, the two rubber strips limit the lower jaws at the two ends of different patients, the clamping blocks are clamped into the clamping grooves of the