Dual-wall inflatable mattress

Abstract

A dual-wall inflatable mattress includes a top sheet, a bottom sheet and a side circumference sheet. The side circumference sheet includes an outer peripheral sheet and an inner peripheral sheet. The outer peripheral sheet extends around the perimeter of the top sheet and the bottom sheet and connects an outer edge of the top sheet and an outer edge of the bottom sheet to form an internal volume. The inner peripheral sheet is disposed in the inner volume for dividing the inner volume into disconnected first air chamber and second air chamber. The first air chamber is defined by the top sheet, the bottom sheet and the inner peripheral sheet, and the second air chamber is defined by the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet. The first air chamber and the second air chamber respectively use independent air nozzles.

What is claimed is: 
     
         1 . A dual-wall inflatable mattress, comprising a top sheet, a bottom sheet and a side circumferential sheet, wherein the side circumferential sheet comprises an outer peripheral sheet, and an inner peripheral sheet, wherein
 the outer peripheral sheet extends around a perimeter of the top sheet and the bottom sheet, and the outer peripheral sheet connects an outer edge of the top sheet and an outer edge of the bottom sheet to form an internal volume;   the inner peripheral sheet is disposed in the inner volume for dividing the inner volume into a first air chamber and a second air chamber, wherein the first air chamber and the second air chamber are disconnected from each other; and   the first air chamber is defined by the top sheet, the bottom sheet and the inner peripheral sheet, and the second air chamber is defined by the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet.   
     
     
         2 . The dual-wall inflatable mattress according to  claim 1 , wherein the first air chamber and the second air chamber are provided with air nozzles for inflating and deflating air. 
     
     
         3 . The dual-wall inflatable mattress according to  claim 1 , wherein the side circumferential sheet is further provided with a plurality of connecting parts, wherein the plurality of connecting parts are configured for a fixed connection between the outer peripheral sheet and the inner peripheral sheet. 
     
     
         4 . The dual-wall inflatable mattress according to  claim 3 , wherein the plurality of connecting parts are formed by a hot-melt welding of the outer peripheral sheet and the inner peripheral sheet. 
     
     
         5 . The dual-wall inflatable mattress according to  claim 3 , wherein each of the plurality of connecting parts is annular. 
     
     
         6 . The dual-wall air-filled mattress according to  claim 1 , wherein a plurality of inner drawstrings are arranged in the first air chamber, and the plurality of inner drawstrings are hot-melt welded between the top sheet and the bottom sheet. 
     
     
         7 . The dual-wall inflatable mattress according to  claim 1 , wherein the inner peripheral sheet defines the second air chamber in the inner volume, wherein the second air chamber is annular. 
     
     
         8 . The dual-wall inflatable mattress according to  claim 7 , wherein a circumference of the inner peripheral sheet is smaller than a circumference of the outer peripheral sheet. 
     
     
         9 . The dual-wall air-filled mattress according to  claim 1 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         10 . The dual-wall air-filled mattress according to  claim 2 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         11 . The dual-wall air-filled mattress according to  claim 3 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         12 . The dual-wall air-filled mattress according to  claim 4 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         13 . The dual-wall air-filled mattress according to  claim 5 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         14 . The dual-wall air-filled mattress according to  claim 6 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         15 . The dual-wall air-filled mattress according to  claim 7 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material. 
     
     
         16 . The dual-wall air-filled mattress according to  claim 8 , wherein either of the top sheet, the bottom sheet, the outer peripheral sheet and the inner peripheral sheet comprises a flexible air-impermeable material.