Backing plate for storage bags as well as storage bag and storage box with the same

Abstract

The present invention discloses a backing plate for storage bags as well as a storage bag and a storage box with the same. With this backing plate including a backing plate body, a trapezoid or triangular edge fold is formed as an extension to one end of the backing plate body, and another trapezoid or triangular edge fold as an extension to the other end of the backing plate body. With the backing plate arranged in the storage bag and the storage box, there are no requirements for the two edge folds extended outwards at the bottom of the storage bag. This will not only strengthen the stereoscopic perception of the storage bag, but also save materials and reduce the production cost, better satisfying the users' requirements.

1 . A backing plate for storage bags, comprising a backing plate body ( 1 ), characterized in that: a trapezoid or triangular edge fold ( 2 ) is formed as an extension to one end of the backing plate body ( 1 ), and another trapezoid or triangular edge fold ( 3 ) as an extension to the other end of the backing plate body ( 1 ). 
     
     
         2 . The backing plate for storage bags according to  claim 1 , characterized in that: the two trapezoid or triangular edge folds ( 2 ) and ( 3 ) can be folded to form an angle of 90 degrees with the backing plate body ( 1 ). 
     
     
         3 . A storage bag with the backing plate for storage bags according to  claim 1 , comprising a storage bag body ( 8 ), characterized in that: with the backing plate body ( 1 ) arranged inside at the bottom of the storage bag body ( 8 ), the trapezoid or triangular edge fold ( 2 ) of the backing plate body ( 1 ) is inserted into a corner ( 4 ) at the bottom of the storage bag body ( 8 ) and can be folded upwards along this corner ( 4 ), and the trapezoid or triangular edge fold ( 3 ) of the backing plate body ( 1 ) is inserted into another corner ( 5 ) at the bottom of the storage bag body ( 8 ) and can be folded upwards along this corner ( 5 ). 
     
     
         4 . A storage box with the backing plate for storage bags according to  claim 1 , comprising a storage box body ( 9 ), characterized in that: an interlayer ( 6 ) is arranged in a side wall of the storage box body ( 9 ), and another interlayer ( 7 ) in another side wall of the storage box body ( 9 ); the trapezoid or triangular edge fold ( 2 ) of the backing plate body ( 1 ) is folded upwards into the interlayer ( 6 ), and the trapezoid or triangular edge fold ( 3 ) of the backing plate body ( 1 ) upwards into the interlayer ( 7 ).