Chest trauma fixing device

The invention provides a chest trauma fixing device. The chest trauma fixing device comprises a mounting belt, a mounting frame, an air bag assembly, a transmission assembly, a driving assembly and a limiting assembly. The mounting belt can be fixed on a human body, and the mounting rack is arranged on the mounting belt; the air bag assembly is arranged in the mounting frame in a lifting mode through the transmission assembly. The driving assembly is rotatably arranged on the side face of the mounting frame, and one end of the driving assembly penetrates through the mounting frame and is arranged in the mounting frame; forward rotation of the driving assembly can drive the transmission assembly to descend, and reverse rotation of the driving assembly can drive the transmission assembly to ascend; the limiting assembly is rotationally arranged on the mounting frame and can limit the driving assembly to rotate reversely. According to the chest trauma fixing device, the driving assembly serving as a power source