Abstract: An air cushion structure includes an upper surface layer, an upper pull strap, an upper isolating layer, a lower isolating layer, a lower pull strap, and a lower surface layer. A plurality of upper air chambers are formed between the upper surface layer and the upper pull strap. A plurality of lower air chambers are formed between the lower pull strap and the lower surface layer. A plurality of middle air chambers are formed between the upper isolating layer and the lower isolating layer. Thus, the air cushion structure contains multiple air chambers to provide a better support, and to provide a warming effect.

Abstract: A air valve structure includes a base, a valve seat, a valve cover and a valve plate. The base is provided with a mounting hole. The valve seat is provided with a first mounting portion and a second mounting portion. The first mounting portion and the second mounting portion of the valve seat are mounted in the mounting hole of the base at different time. The valve seat is provided with a vent hole. The valve seat is provided with a support portion and an abutting edge. The valve cover is provided with a covering portion. Thus, the air valve structure functions as a oneway valve by action of the valve plate to provide a oneway air inlet or outlet function.