Prefabricated pallet shelf structure having adjustable width and height

Abstract

A prefabricated pallet rack structure includes: fixtures slidingly fitted to a plurality of mounting portions formed on corners of a pallet; a plurality of first assembling bars having one end fixedly fitted to the fixtures and the other end of a given length in a vertical direction; and a plurality of second assembling bars having one end fitted to the top end of the plurality of first assembling bars in such a manner as to be adjusted in height and the other end of a given length in a horizontal direction, wherein the plurality of second assembling bars is configured to allow the other end of the given length in the horizontal direction to cross to a shape of “X” in such a manner as to be drawnably fitted to each other to perform adjustment in the width.

What is claimed is: 
     
         1 . A prefabricated pallet rack structure capable of being adjusted in width and height, which is fitted to a plurality of mounting portions ( 1 A) formed on corners of a pallet ( 1 ) to have a given width and a given height, the prefabricated pallet rack structure comprising:
 fixtures ( 10 ) slidingly fitted to the plurality of mounting portions ( 1 A);   a plurality of first assembling bars ( 30 ) having one end fixedly fitted to the fixtures ( 10 ) and the other end of a given length in a vertical direction; and   a plurality of second assembling bars ( 40 ) having one end fitted to the top end of the plurality of first assembling bars ( 30 ) in such a manner as to be adjusted in height and the other end of a given length in a horizontal direction,   wherein the plurality of second assembling bars ( 40 ) is configured to allow the other end of the given length in the horizontal direction to cross to a shape of “X” in such a manner as to be drawnably fitted to each other to perform adjustment in the width.   
     
     
         2 . The prefabricated pallet rack structure according to  claim 1 , further comprising space adjustment members ( 20 ) selectively mounted on the fixtures ( 10 ) according to sizes of the mounting portions (TA) in such a manner as to allow the fixtures ( 10 ) to be tightly fixed to the mounting portions ( 1 A). 
     
     
         3 . The prefabricated pallet rack structure according to  claim 1 , further comprising one pair of horizontal connecting bars ( 50 ) of a given length in a horizontal direction in such a manner as to cross each other to a shape of “X” on centers thereof, so that instead of allowing the other end of each second assembling bar ( 40 ) to be drawnably fitted to the other end of another second assembling bar ( 40 ), the other end of each second assembling bar ( 40 ) is drawnably fitted to one end of each horizontal connecting bar ( 50 ). 
     
     
         4 . The prefabricated pallet rack structure according to  claim 1 , wherein each fixture ( 10 ) comprises: a lower plate ( 11 ) of a given size adapted to come into close contact with the underside of the pallet ( 1 ); a first side plate ( 12 ) of a given size adapted to allow one end thereof to be connected to the lower plate ( 11 ) and to allow the other end thereof to come into close contact with one side surface of the mounting portion ( 1 A); a second side plate ( 13 ) of a given size adapted to allow one end thereof to be connected to the lower plate ( 11 ) and to allow the other end thereof to come into close contact with the other side surface of the mounting portion ( 1 A); a fixing plate ( 14 ) of a given length adapted to allow one end thereof to be connected to the second side plate ( 13 ) and to allow the other end thereof to be parallel to the first side plate ( 12 ); and a plurality of cylindrical insertion pipes ( 15 ) spaced apart from each other by a given distance on an outside thereof from the corner at which the first side plate ( 12 ) and the second side plate ( 13 ) abut against each other in such a manner as to allow the first assembling bar ( 30 ) to be selectively inserted thereinto at different positions thereof. 
     
     
         5 . The prefabricated pallet rack structure according to  claim 4 , wherein the fixing plate ( 14 ) has a plurality of fitting slots ( 14 A) formed thereon. 
     
     
         6 . The prefabricated pallet rack structure according to  claim 2 , wherein each space adjustment member ( 20 ) comprises:
 a first locking plate ( 21 ) of given width and length and having fitting portions ( 21 A) of a given size protruding from one side surface thereof;   a second locking plate ( 22 ) of given width and length spaced apart from the first locking plate ( 21 ) by a given distance by means of the fitting portions ( 21 A);   extension plates ( 23 ) of a given length extended in a vertical direction to a longitudinal direction of the second locking plate ( 22 ) in such a manner as to allow one end thereof to be connected to the second locking plate ( 22 ); and   a contacting plate ( 24 ) of a given size connected to the extension plates ( 23 ) in such a manner as to come into close contact with the mounting portion ( 1 A), and   a plurality of space adjustment member sets ( 20 ) is provided with the extension plates ( 23 ) having different lengths according to the sizes of the mounting portions ( 1 A), so that one space adjustment member set ( 20 ) having the extension plates ( 23 ) of appropriate lengths according to the sizes of the mounting portions ( 1 A) is selected and mounted on the fixtures ( 10 ).   
     
     
         7 . The prefabricated pallet rack structure according to  claim 2 , wherein each space adjustment member ( 20 ) comprises:
 a first locking plate ( 21 ) of given width and length and having fitting portions ( 21 A) of a given size protruding from one side surface thereof;   a second locking plate ( 22 ) of given width and length spaced apart from the first locking plate ( 21 ) by a given distance by means of the fitting portions ( 21 A); and   an elastic contacting plate ( 24 ′) whose one end is connected to one end of the second locking plate ( 22 ) and whose other end is bent to a given angle in such a manner as to be pressurizedly deformed by means of an elastic force, the second locking plate ( 22 ) and the elastic contacting plate ( 24 ′) having a plane shape of a general “V” or “U”.