Abstract: The invention relates to a door opening and closing structure including a door plate, a transverse bar, a zipper and a pulling string. When a tension is applied on the pulling string and the tension is greater than a gravity of the transverse bar and at least a portion of the door plate, and the at least a portion of the door plate is driven by the transverse bar to move along the extension direction to form an opening. When the tension is less than the gravity of the transverse bar and the at least a portion of the door plate, the door plate is driven by the transverse bar to move along the gravity direction to reduce the opening.

Abstract: The invention relates to a door opening and closing structure including a door plate, a transverse bar, a zipper and a pulling string. When a tension is applied on the pulling string and the tension is greater than a gravity of the transverse bar and at least a portion of the door plate, and the at least a portion of the door plate is driven by the transverse bar to move along the extension direction to form an opening. When the tension is less than the gravity of the transverse bar and the at least a portion of the door plate, the door plate is driven by the transverse bar to move along the gravity direction to reduce the opening.

Abstract: An aquaplane including a pair of inflatable members, a connection assembly and a control assembly is provided. Each of the inflatable members has a leading end, a foot fixing portion and a back end, wherein the foot fixing portion is located between the leading end and the back end. The connection assembly is connected between the leading ends of the inflatable members, and the control assembly is disposed on the pair of inflatable members, and is located adjacent to the foot fixing portions. A user is capable of treading on the foot fixing portions of the aquaplane to drive the back ends of the two inflatable members to repeatedly close to each other and separate from each other, so as to drive the aquaplane to move forward on water.

Abstract: An air mattress including an inflatable compartment, strips, a connecting sheet and pillow strips is provided. The inflatable compartment includes a top wall, a bottom wall and a side wall surrounding peripheries of the top wall and the bottom wall. The strips are air-pervious and disposed in the inflatable compartment, wherein the strips are connected between the bottom wall and the top wall and located in a lying portion of the top wall. The connecting sheet is air-pervious and disposed in the inflatable compartment and facing a pillow portion of the top wall, wherein the connecting sheet is connected between the side wall and the strips adjacent to the pillow portion. The pillow strips are air-pervious and disposed in the inflatable compartment, wherein the pillow strips are connected between the connecting sheet and the pillow portion of the top wall.

Abstract: An air mattress includes an inflatable compartment, strips and decoration strips. The inflatable compartment includes a top wall, a bottom wall and a side wall surrounding the peripheries of the top wall and the bottom wall. The strips are air pervious and disposed in the inflatable compartment. The strips are connected between the top wall and the bottom wall. The decoration strips surround the top wall and are connected between the top wall and the side wall, so that the side wall is formed into a first layer portion and a second layer portion.

Abstract: An inflatable sofa including a first inflatable sheath, a second inflatable sheath, a hose, an injection valve, a leaking valve and a pump is provided. The first inflatable sheath has a first pressure, and the second inflatable sheath disposed in the first inflatable sheath has a second pressure, in which the second pressure is less than the first pressure. The hose is connected between the pump and the second inflatable sheath, and the injection valve is disposed on the second inflatable sheath and located in the first inflatable sheath. The leaking valve is disposed on the first inflatable sheath and used to leak gas within the first inflatable sheath to outside of the inflatable sofa.

Abstract: An air mattress includes an inflatable compartment, strips and decoration strips. The inflatable compartment includes a top wall, a bottom wall and a side wall surrounding the peripheries of the top wall and the bottom wall. The strips are air pervious and disposed in the inflatable compartment. The strips are connected between the top wall and the bottom wall. The decoration strips surround the top wall and are connected between the top wall and the side wall, so that the side wall is formed into a first layer portion and a second layer portion.

Abstract: An air mattress including an inflatable compartment, strips, a connecting sheet and pillow strips is provided. The inflatable compartment includes a top wall, a bottom wall and a side wall surrounding peripheries of the top wall and the bottom wall. The strips are air-pervious and disposed in the inflatable compartment, wherein the strips are connected between the bottom wall and the top wall and located in a lying portion of the top wall. The connecting sheet is air-pervious and disposed in the inflatable compartment and facing a pillow portion of the top wall, wherein the connecting sheet is connected between the side wall and the strips adjacent to the pillow portion. The pillow strips are air-pervious and disposed in the inflatable compartment, wherein the pillow strips are connected between the connecting sheet and the pillow portion of the top wall.