Thermally insulated three-dimensional bag

Abstract

The invention relates to the technical field of packaging bags, specifically relating to a thermally insulated three-dimensional bag comprising a bag body wherein the bag body consists of a front surface, a side surface and a bottom surface; the front surface is symmetrically formed on two sides of the bottom surface; the side surface comprises the first connecting surfaces symmetrically formed on two sides of the front surface and the second connecting surfaces symmetrically formed on the other two sides of the bottom surface; a matching portion used for connecting the second connecting surfaces is formed on the first connecting surfaces and a gap is defined between the second connecting surfaces and the matching portion. This thermally insulated three-dimensional bag can improve the fastness and the aesthetic property of itself at the time of alleviating the degree of production difficulty, and possesses long life.

1 . A thermally insulated three-dimensional bag comprising a bag body ( 0 ) wherein the bag body ( 0 ) consists of a front surface ( 1 ), a side surface ( 2 ) and a bottom surface ( 3 ); said front surface ( 1 ) is symmetrically formed on two sides of said bottom surface ( 3 ); said side surface ( 2 ) comprises the first connecting surfaces ( 21 ) symmetrically formed on two sides of the front surface ( 1 ) and the second connecting surfaces ( 22 ) symmetrically formed on the other two sides of the bottom surface ( 3 ); a matching portion ( 211 ) used for connecting the second connecting surfaces ( 22 ) is formed on the first connecting surfaces ( 21 ) and a gap ( 23 ) is defined between said second connecting surfaces ( 22 ) and the matching portion ( 211 );
 when the three-dimensional bag is formed, said front surface ( 1 ) and the second connecting faces ( 22 ) are turned over towards the same side on the bottom surface ( 3 ); said first connecting surfaces ( 21 ) are turned over towards one side where said second connecting surface ( 22 ) are located on said front surface ( 1 ) and is connected with the first connecting surface ( 21 ) on the front surface ( 1 ) of the other side, and said first connecting surface ( 21 ) and the second connecting surface ( 22 ) are connected to form said side surface ( 2 ) by connecting said edge facing said gap ( 23 ) of the matching portion ( 211 ) to said first connecting surface ( 21 ).   
     
     
         2 . The thermally insulated three-dimensional bag of  claim 1  wherein said second connecting surface ( 22 ) may be triangular. 
     
     
         3 . The thermally insulated three-dimensional bag of  claim 1  wherein said second connecting surface ( 22 ) may be square. 
     
     
         4 . The thermally insulated three-dimensional bag of  claim 1  wherein the first connecting portions ( 2111 ) are formed on all edges of said matching portion ( 211 ), the second connecting portions ( 221 ) are formed symmetrically on said second connecting surface ( 22 ) and are used for being attached to the first connecting portion ( 2111 ); said first connecting surface ( 21 ) formed in one end of said two sides of the front surface ( 1 ) is symmetrically arranged with the third connecting portions ( 212 ) while the first connecting surface ( 21 ) formed in the other end of said two sides of the front surface ( 1 ) is symmetrically arranged with the fourth connecting portions ( 213 ) for being attached to the third connecting portions ( 212 ). 
     
     
         5 . The thermally insulated three-dimensional bag of  claim 4  wherein the connection between said first connecting portion ( 2111 ) and the second connecting portion ( 221 ) and the connection between said third connecting portion ( 212 ) and the fourth connecting portion ( 213 ) are all pressed by ultrasonic waves. 
     
     
         6 . The thermally insulated three-dimensional bag of  claim 4  wherein folds are formed between said second connecting portion ( 221 ) and second connecting surface ( 22 ), between said fourth connecting portion ( 213 ) and the first connecting surfaces ( 21 ), between said front surface ( 1 ) and the bottom surface ( 3 ), between said first connecting surface ( 21 ) and the front surface ( 1 ) and between said second connecting surface ( 22 ) and the bottom surface ( 3 ); intercommunicated fold is formed on said second connecting surface ( 22 ) and the middle part of said bottom surface ( 3 ). 
     
     
         7 . The thermally insulated three-dimensional bag of  claim 1  wherein a bag opening ( 4 ) is formed above the bag body ( 0 ) and a zipper ( 41 ) is connected with the bag opening ( 4 ) wherein said bag opening ( 4 ) is connected with the zipper ( 41 ) via sewing. 
     
     
         8 . The thermally insulated three-dimensional bag of  claim 1  wherein a handle ( 5 ) is arranged on said bag body ( 0 ) which is connected with the bag body ( 0 ) via sewing, and the handle is made of webbing. 
     
     
         9 . The thermally insulated three-dimensional bag of  claim 1  wherein said bag body ( 0 ) is made of pearl wool and aluminized film. 
     
     
         10 . The thermally insulated three-dimensional bag of  claim 1  wherein an inner bag made of PEVA or EVA materials is arranged inside the bag body ( 0 ).