Foldable storage box

Abstract

A foldable storage box, includes: a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate, and a cover plate, where the bottom plate is hinged with each of the first side plate, the second side plate, the third side plate, and the fourth side plate; in a non-folded state, adjacent two of the first side plate, the second side plate, the third side plate, and the fourth side plate are detachably connected to each other; the cover plate and the bottom plate are arranged facing each other; and the bottom plate, the first side plate, the second side plate, the third side plate, the fourth side plate, and the cover plate enclose a cavity for storage.

What is claimed is: 
     
         1 . A foldable storage box, comprising: a bottom plate, a first side plate, a second side plate, a third side plate, a fourth side plate, and a cover plate, wherein the bottom plate is hinged with each of the first side plate, the second side plate, the third side plate, and the fourth side plate, respectively;
 in a non-folded state, each adjacent two of the first side plate, the second side plate, the third side plate, and the fourth side plate are detachably connected to each other; the cover plate and the bottom plate are arranged facing each other; the bottom plate, the first side plate, the second side plate, the third side plate, the fourth side plate, and the cover plate enclose a cavity for storage; and   the first side plate comprises a first hinge shaft and the bottom plate comprises a first hinge groove hinged with the first hinge shaft; the first hinge shaft comprises: a cylindrical section functioned as a rotation shaft, a first connecting rod configured to fix the cylindrical section, and a limit bump located on the first connecting rod; the first hinge groove comprises: a first notch, a limit buckle, and a limit groove; the limit buckle abuts against the cylindrical section and is configured to limit the cylindrical section into the first notch; and the limit bump is located in the limit groove such that the first side plate is fixed to the bottom plate in the non-folded state.   
     
     
         2 . The foldable storage box according to  claim 1 , wherein the first side plate and the third side plate are arranged facing each other; the second side plate and the fourth side plate are arranged facing each other; the second side plate comprises a second hinge shaft and the bottom plate comprises a second hinge groove, hinged with the second hinge shaft; and
 the second hinge shaft comprises: a second connecting rod and a protruding shaft located on the second connecting rod; the second hinge groove comprises: a second notch and an inner groove inset in the second notch; the second connecting rod is located in the second notch; and the protruding shaft is located in the inner groove.   
     
     
         3 . The foldable storage box according to  claim 2 , wherein the protruding shaft is cylindrical; and the protruding shaft is coupled with the inner groove such that the second side plate is able to rotate relative to the bottom plate. 
     
     
         4 . The foldable storage box according to  claim 2 , wherein the second connecting rod is an elastic member. 
     
     
         5 . The foldable storage box according to  claim 2 , wherein hinging modes between the third side plate and the bottom plate and between the fourth side plate and the bottom plate are identical to or different from a hinging mode between the second side plate and the bottom plate. 
     
     
         6 . The foldable storage box according to  claim 2 , wherein the first side plate comprises a buckle and the second side plate comprises a buckle groove detachably coupled with the buckle groove such that the first side plate is detachably connected to the second side plate;
 the buckle comprises: a limit post and a first limit button; the buckle groove comprises: a third notch and a second limit button; the limit post is coupled with an inner wall of the third notch; and the first limit button is detachably connected to the second limit button.   
     
     
         7 . The foldable storage box according to  claim 6 , wherein the first limit button comprises a first protrusion; the second limit button comprises a second protrusion; and the first protrusion is coupled with the second protrusion. 
     
     
         8 . The foldable storage box according to  claim 6 , wherein a detachable connecting mode of the first side plate with the fourth side plate, a detachable connecting mode of the third side plate with the second side plate, and a detachable connecting mode of the third side plate with the fourth side plate are identical to or different from a detachable connecting mode of the first side plate with the second side plate. 
     
     
         9 . The foldable storage box according to  claim 1 , wherein hinging modes of the second side plate, the third side plate, and the fourth side plate with the bottom plate are identical to or different from a hinging mode of the first side plate with the bottom plate. 
     
     
         10 . The foldable storage box according to  claim 1 , wherein when the foldable storage box is in a folded state, the first side plate, the second side plate, the third side plate, and the fourth side plate each are folded on the bottom plate; and the cover plate is detachably connected to a side of the bottom plate opposite to the first side plate, the second side plate, the third side plate, and the fourth side plate. 
     
     
         11 . The foldable storage box according to  claim 10 , wherein a boss is provided on the side of the bottom plate opposite to the first side plate, the second side plate, the third side plate, and the fourth side plate; the cover plate is provided with a recess; and the boss is detachably connected to the recess. 
     
     
         12 . A foldable storage box assembly, comprising: at least two the foldable storage boxes according to  claim 1 , wherein the bottom plate of one of the at least two foldable storage boxes is buckled with the cover plate of an adjacent one of the at least two foldable storage box such that the at least two foldable storage boxes are stacked one by one to form the foldable storage box assembly.