Lateral lying prevention splint

The invention belongs to the technical field of nursing equipment, and particularly relates to a side-lying-preventing clamping plate which comprises a transverse plate, end shells are fixedly connected to the two ends of the transverse plate, telescopic plates are fixedly connected to the outer walls of the bottoms of the end shells, and clamping rotary knobs are connected to one sides of the telescopic plates through threads. One end of the clamping knob is connected with a clamping block, and at least eight evenly-distributed air bag grooves are formed in the outer wall of the bottom of the transverse plate. Air is blown into the air bag, the air bag is pressed on the body of the patient through the soft pressing pad to restrain the patient from turning over, compared with the prior art, the comfort level can be improved, when the patient does not turn over, the pressure of the air bag on the body of the patient is very small, the patient does not feel oppressing, and when the patient wants to turn over, t