The working principle of rubber air cushions is based on the compressibility of gas and the elasticity of rubber. When the air cushion is inflated with gas, the rubber shell encloses the gas, forming a structure with a certain degree of rigidity and elasticity. When the air cushion is subjected to external force, the internal gas is compressed, and the rubber shell deforms, thereby absorbing and dispersing energy, thus playing a role in cushioning and shock absorption. Furthermore, rubber air cushions can also change their support force and shape by adjusting the pressure and volume of the internal gas to adapt to different usage needs.