Collapsible storage box

Abstract

The storage box contains a box member, a cover member having an edge joined to a top edge of the box member, and a base plate placed in the box member. The cover member has three side pieces extended downward from the other three edges. Two fastening elements are configured on the inner sides of the box member's corners adjacent to the cover member, respectively. A first support piece and a second support piece are pivotally configured on the base plate. After the base plate is placed in the box member, the first and second support pieces are raised, and fastening elements on the first and second support pieces are locked by the fastening elements of the box member. A first side piece of the three side pieces extends further inward to form angle so as to tightly cover the box member.

1 . A collapsible storage box comprising:
 a box member, in an erected mode of said storage box, having a first wall piece, a second wall piece opposite to said first wall piece, a third wall piece having two opposite sides connecting with a side of said first side wall and a side of said second side wall, a fourth wall piece having two opposite sides connecting with the other opposite side of said first side wall and the other opposite side of said second side wall, wherein said third wall piece is opposite to said fourth wall piece, wherein each of said third and fourth wall pieces has a vertical folding line in the middle thereof and is foldable along said vertical folding line;   a base plate detachably placed at the bottom of said box member;   a first support longitudinal piece pivotally secured onto said base plate and at a corner close to an end of a side of said base plate, wherein said first support longitudinal piece, in said erected mode of said storage box, fastens at a corner between said first and third wall pieces and extends along a first side of said first wall piece; and   a second support longitudinal piece pivotally secured onto said base plate and at another corner close to the other end of said side of said base plate, wherein said second support longitudinal piece, in said erected mode of said storage box, fastens at a corner between said first and fourth wall pieces and extends along a second side of said first wall piece opposite to said first side of said first wall piece, wherein said first and second support longitudinal pieces, in a collapsed mode of said storage box, intersect on said based plate.   
     
     
         2 . The storage box of  claim 1  further comprising a cover member pivotally joining a third side of said first wall piece, wherein said third side of said first wall piece has an end joining said first side of said first wall piece and the other end joining said second side of said first wall piece. 
     
     
         3 . The storage box of  claim 2 , wherein said cover member, in said erected mode of said storage box, comprises a first side piece configured to cover a top portion of said second wall piece and a second side piece configured to cover a top portion of said third wall piece. 
     
     
         4 . The storage box of  claim 3 , wherein said first side piece extends inward with an angle toward said second wall piece. 
     
     
         5 . The storage box of  claim 1  further comprising a Velcro fastener fastens said first support longitudinal piece, in said erected mode of said storage box, at said corner between said first and third wall pieces. 
     
     
         6 . The storage box of  claim 1  further comprising a third support longitudinal piece, in said erected mode of said storage box, fastening at a corner between said second and third wall pieces and extending along a first side of said second wall piece, and a fourth support longitudinal piece, in said erected mode of said storage box, fastening at a corner between said second and fourth wall pieces and extending along a second side of said second wall piece opposite to said first side of said second wall piece.