Dual-chamber air bed

1. A dual-chamber air bed, comprising:

an air pump;

a bed body air chamber; and

peripheral air chambers,

wherein the air bed is enclosed by a top surface, a bottom surface and a side wall, an upper supplementary-material encircling piece is provided between the top surface and the side wall, a lower supplementary-material encircling piece is provided between the bottom surface and the side wall,

wherein the peripheral air chambers are enclosed by the top surface, the side wall and the upper supplementary-material encircling piece and by the bottom surface, the side wall and the lower supplementary-material encircling piece,

wherein the bed body air chamber is enclosed by the top surface, the bottom surface, the side wall, the upper supplementary-material encircling piece, and the lower supplementary-material encircling piece,

wherein the air pump is provided with two inflation-deflation devices that are independently operated and connect the bed body air chamber and the peripheral air chambers respectively to perform independent inflation and deflation on the bed body air chamber and the peripheral air chambers.

2. The dual-chamber air bed according to claim 1 , wherein one of the two inflation-deflation devices connected with the peripheral air chambers is a peripheral inflation-deflation device, the peripheral air chambers are divided into an upper peripheral air chamber and a lower peripheral air chamber, and an air outlet of the peripheral inflation-deflation device is communicated with the upper peripheral air chamber and the lower peripheral air chamber respectively.

3. The dual-chamber air bed according to claim 2 , wherein the air outlet of the peripheral inflation-deflation device is provided with a double-pass device having two outlets corresponding to two tubes that are respectively connected with the upper peripheral air chamber and the lower peripheral air chamber.

4. The dual-chamber air bed according to claim 1 , wherein an inflation-deflation device connected with the bed body air chamber is a bed body inflation-deflation device, the air pump is provided on the side wall of the bed body air chamber, and an air outlet of the bed body inflation-deflation device is provided in the bed body air chamber.

5. The dual-chamber air bed according to claim 1 , wherein drawstrings are provided in the bed body air chamber and are at least partially provided in the bed body air chamber in an inclined manner.

6. The dual-chamber air bed according to claim 5 , wherein the drawstrings are connected with the top surface and the bottom surface of the bed body air chamber respectively, and form included angles with the bottom surface, in which the included angles gradually increase from both sides of the bed body air chamber to the middle of the bed body air chamber.

7. The dual-chamber air bed according to claim 5 , wherein a range of included angles formed by the drawstrings and the bottom surface is 60 to 90 degrees.

8. The dual-chamber air bed according to claim 1 , wherein an elasticity of the top surface of the air bed is greater than an elasticity of the bottom surface.

9. The dual-chamber air bed according to claim 5 , wherein the drawstrings are in a sheet-like or columnar or ring structure, the sheet-like drawstrings are provided along inner circumference of the mattress body and have a curved or linear design at a joint of the top surface/bottom surface of the mattress body, and the drawstrings in the columnar or ring structure are uniformly provided in a space of the mattress body and are arranged in a matrix form.

10. The dual-chamber air bed according to claim 1 , wherein the upper supplementary-material encircling piece and the lower supplementary-material encircling piece are made of PVC/TPU material, and are successively welded or bonded end to end to enclose a rectangular shape by PVC/TPU sheet materials.