Folding shelf

Abstract

The present invention discloses a folding shelf for placing a box with a built-in liquid crystal panel in multiple layers, the folding shelf including: a first frame assembly, the first frame assembly including a rectangular first frame assembly body and four first support columns erected at a lower end of the first frame assembly body, the first frame assembly body comprising two first fixing beams and two first connecting beams disposed between the two first fixed beams, wherein the first support column comprises a first cylinder and a second cylinder, the first cylinder is erected at an upper end of the second cylinder, an upper end of the first cylinder is folding connected to a lower end of the first fixed beam, a lower end of the first cylinder is folding connected to the upper end of the second cylinder.

What is claimed is: 
     
         1 . A folding shelf for placing a box with a built-in liquid crystal panel in multiple layers, the folding shelf comprising: a first frame assembly, the first frame assembly comprising a rectangular first frame assembly body and four first support columns erected at a lower end of the first frame assembly body, the first frame assembly body comprising two first fixing beams and two first connecting beams disposed between the two first fixed beams, wherein the first support column comprises a first cylinder and a second cylinder, the first cylinder is erected at an upper end of the second cylinder, an upper end of the first cylinder is folding connected to a lower end of the first fixed beam, a lower end of the first cylinder is folding connected to the upper end of the second cylinder. 
     
     
         2 . The folding shelf according to  claim 1 , wherein the first cylinder is folding connected relative to a middle of the first fixed beam, and is parallel to the first fixed beam after folding, the second cylinder is folding connected to a top end of the first fixed beam relative to the first cylinder, and is parallel to the first fixed beam after folding. 
     
     
         3 . The folding shelf according to  claim 2 , wherein the first cylinder and the second cylinder are connected by a hinge. 
     
     
         4 . The folding shelf according to  claim 2 , wherein the first connecting beam comprises a first beam body and a second beam body folding connected, one end of the first beam body away from the second beam body is folding connected to the first fixed beam, one end of the second beam body away from the first beam body is folding connected to the other first fixed beam. 
     
     
         5 . The folding shelf according to  claim 4 , wherein the first beam body and the second beam body are connected by a hinge. 
     
     
         6 . The folding shelf according to  claim 4 , wherein a length of the first fixing beam is longer than a length of the first connecting beam. 
     
     
         7 . The folding shelf according to  claim 1 , wherein a groove is provided on an upper end surface of the first fixed beam, when stacking the first frame assembly in a vertical direction, a lower end of a first support column of the first frame body assembly of a previous layer is received in the groove. 
     
     
         8 . The folding shelf according to  claim 1  further comprising a support plate, wherein the support plate is disposed at an upper end of the first frame assembly. 
     
     
         9 . The folding shelf according to  claim 8 , wherein the support plate comprises a support plate body and at least two support blocks, the support block extends from a side of the support plate body in a direction away from the support plate body, and the support block is provided with a forklift hole. 
     
     
         10 . The folding shelf according to  claim 1  further comprising at least one second frame assembly, the second frame assembly comprising a second fixed beam parallel to the first fixed beam, two second connecting beams and two second support columns erected at a lower end of the second fixed beam, wherein the two second connecting beams are disposed between the second fixed beam and the first fixed beam adjacent to the second fixed beam, the second support column comprises a first cylinder and a second cylinder folding connected, the first cylinder is erected on an upper end of the second cylinder, an upper end of the first cylinder is folding connected to the lower end of the second fixed beam. 
     
     
         11 . The folding shelf according to  claim 10 , wherein in the first frame assembly, the first cylinder is folding connected relative to a middle of the first fixed beam, and is parallel to the first fixed beam after folding, the second cylinder is folding connected to a top end of the first fixed beam relative to the first cylinder, and is parallel to the first fixed beam after folding, in the second frame assembly, the first cylinder is folding connected relative to a middle of the second fixed beam, and is parallel to the second fixed beam after folding, the second cylinder is folding connected to a top end of the second fixed beam relative to the first cylinder, and is parallel to the second fixed beam after folding, 
     
     
         12 . The folding shelf according to  claim 11 , wherein the first cylinder and the second cylinder are connected by a hinge. 
     
     
         13 . The folding shelf according to  claim 11 , wherein
 the first connecting beam comprises a first beam body and a second beam body folding connected, one end of the first beam body away from the second beam body is folding connected to the first fixed beam, one end of the second beam body away from the first beam body is folding connected to the other first fixed beam; and   the second connecting beam comprises a first beam body and a second beam body folding connected, one end of the first beam body away from the second beam body is folding connected to the first fixed beam closed to the second fixed beam, one end of the second beam body away from the first beam body is folding connected to the second fixed beam.   
     
     
         14 . The folding shelf according to  claim 13 , wherein the first beam body and the second beam body are connected by a hinge. 
     
     
         15 . The folding shelf according to  claim 13 , wherein a length of the first fixing beam is longer than a length of the first connecting beam, a length of the second fixing beam is equal to the length of the first fixing beam. 
     
     
         16 . The folding shelf according to  claim 10 , wherein grooves are provided on upper end surfaces of the first fixed beam and the second fixed beam, when stacking the first frame assembly and the second frame assembly in a vertical direction, a lower end of a first support column of the first frame body assembly of a previous layer is received in the groove, a lower end of a second support column of the second frame body assembly of a previous layer is received in the groove. 
     
     
         17 . The folding shelf according to  claim 10  further comprising support plates, wherein the support plates are disposed at upper ends of the first frame assembly and the second frame assembly. 
     
     
         18 . The folding shelf according to  claim 17 , wherein each of the support plate comprises a support plate body and at least two support blocks, the support block extends from a side of the support plate body in a direction away from the support plate body, and the support block is provided with a forklift hole.