Head fixing device for oral cavity cleaning and nursing

The utility model belongs to the technical field of oral cavity clinical treatment flushing, and particularly relates to a head fixing device for oral cavity cleaning and nursing. The right clamping device and the left clamping device are clamped, clamping teeth and second clamping teeth are made of elastic plastic, the clamping teeth and the second clamping teeth are clamped in a sliding mode, adjustment can be conducted according to different sizes of the head of a patient, a pressing button is pressed, the pressing button drives a pressing block to extrude a spring, the pressing block drives a clamping block to move in a moving groove, and the clamping block can move in the moving groove. When the clamping block is separated from the interior of the moving groove and reaches the rotating groove, the second clamping teeth are in a free state, the second clamping teeth are separated from the clamping teeth, the left clamping device is separated from the right clamping device, and the plastic fastening ring i