Double-layer air cushion bed

Abstract

The present invention relates to the technical field of air cushion beds, and discloses a double-layer air cushion bed, including an upper air chamber, a lower air chamber, a middle partition sheet arranged between the upper air chamber and the lower air chamber, and an inflating structure, where the middle partition sheet is provided with a communicating structure for communicating the upper air chamber and the lower air chamber to allow air in the upper air chamber and the lower air chamber to circulate with each other, and the inflating structure is configured to inflate and deflate the upper air chamber and the lower air chamber. Through this arrangement, the upper air chamber and the lower air chamber are configured as an upper layer and a lower layer, and the communicating structure on the middle partition sheet communicates the upper air chamber and the lower air chamber to form a large convective air chamber. The upper air chamber and the lower air chamber can be inflated using the inflating structure, thereby solving the problems that in the prior art, the layers of the double-layer air cushion bed are independent of each other, each layer requires the inflating structure such as an inflating nozzle or a built-in inner pump and needs to be inflated separately during inflation.

What is claimed is: 
     
         1 . A double-layer air cushion bed, comprising an upper air chamber ( 1 ), a lower air chamber ( 2 ), a middle partition sheet ( 3 ) arranged between the upper air chamber ( 1 ) and the lower air chamber ( 2 ), and an inflating structure ( 4 ), wherein the middle partition sheet ( 3 ) is provided with a communicating structure for communicating the upper air chamber ( 1 ) and the lower air chamber ( 2 ) to allow air in the upper air chamber ( 1 ) and the lower air chamber ( 2 ) to circulate with each other, and the inflating structure ( 4 ) is configured to inflate and deflate the upper air chamber ( 1 ) and the lower air chamber ( 2 ). 
     
     
         2 . The double-layer air cushion bed according to  claim 1 , wherein the communicating structure is a vent hole formed in the middle partition sheet ( 3 ). 
     
     
         3 . The double-layer air cushion bed according to  claim 1 , wherein the inflating structure ( 4 ) is an inflating nozzle or an electric pump ( 41 ). 
     
     
         4 . The double-layer air cushion bed according to  claim 1 , further comprising a face sheet ( 5 ) and a bottom sheet ( 6 ), wherein the face sheet ( 5 ) and the bottom sheet ( 6 ) are located on two sides of the middle partition sheet ( 3 ) respectively and connected to the middle partition sheet ( 3 ) to form the upper air chamber ( 1 ) and the lower air chamber ( 2 ). 
     
     
         5 . The double-layer air cushion bed according to  claim 3 , wherein the middle partition sheet ( 3 ) is provided with an upper peripheral sheet ( 7 ) and a lower peripheral sheet ( 8 ), the upper peripheral sheet ( 7 ) and the lower peripheral sheet ( 8 ) protrude from the middle partition sheet ( 3 ) in directions close to the face sheet ( 5 ) and the bottom sheet ( 6 ) respectively, and the upper peripheral sheet ( 7 ) and the lower peripheral sheet ( 8 ) are connected to the face sheet ( 5 ) and the bottom sheet ( 6 ) respectively so as to form the upper air chamber ( 1 ) and the lower air chamber ( 2 ) respectively. 
     
     
         6 . The double-layer air cushion bed according to  claim 4 , wherein the middle partition sheet ( 3 ), the upper peripheral sheet ( 7 ) and the lower peripheral sheet ( 8 ) have an integrated structure. 
     
     
         7 . The double-layer air cushion bed according to  claim 4 , wherein the upper air chamber ( 1 ) is internally provided with an upper air chamber supporting piece group, the lower air chamber ( 2 ) is internally provided with a lower air chamber supporting piece group, the upper air chamber supporting piece group and the lower air chamber supporting piece group each comprise at least one air chamber supporting piece ( 9 ), the air chamber supporting piece ( 9 ) located in the upper air chamber ( 1 ) connects the face sheet ( 5 ) and the middle partition sheet ( 3 ), and the air chamber supporting piece ( 9 ) located in the lower air chamber ( 2 ) connects the bottom sheet ( 6 ) and the middle partition sheet ( 3 ). 
     
     
         8 . The double-layer air cushion bed according to  claim 7 , wherein the air chamber supporting piece ( 9 ) has a straight strip shape, or is round or square or square-in-square, or oval. 
     
     
         9 . The double-layer air cushion bed according to  claim 1 , wherein the double-layer air cushion bed is made of PVC. 
     
     
         10 . The double-layer air cushion bed according to  claim 1 , wherein the double-layer air cushion bed is made of TPU.