Assembled shelf structure

Abstract

The assembled shelf structure includes two side racks, a lower positioning rack and upper positioning rack. Two side racks are standing vertically, and an upper positioning part is placed on the upper part of the two side racks. Front/rear positioning ends are placed on the lower part of the two side racks. The lower positioning rack has a sheathing part for the front/rear positioning ends at the lower part of the two side racks to connect and to position the distance between the lower part of the two side racks. The upper positioning rack is placed between the upper part of the side racks, and a through positioning part is placed on both sides vertically for the upper parts of the side racks to connect downward and to position the distance between the upper parts of the two side racks.

1 . An assembled shelf structure, comprising: 
 two side racks, standing vertically and each having an upper positioning part placed on a top thereof and front/rear positioning ends placed on a lower part thereof;    two lower positioning racks, being placed horizontally between said front/rear positioning ends and having sheathing parts placed on two ends of each lower positioning rack, the lower positioning rack being formed by a sheathing part, the two sheathing parts connecting to the front/rear positioning ends at a bottom of the two side racks and positioning a distance between the two side racks at a bottom thereof; and    an upper positioning rack, being placed in between a top of the two side racks, and having a through positioning part placed on two sides thereof, said through positioning part being vertically placed on tops of the two side racks for connection, positioning a distance between the two side racks on the top thereof.    
   
   
       2 . The structure defined in  claim 1 , wherein the upper positioning part of placed on the upper part of the side racks is comprised of a rod or track or protruding block.  
   
   
       3 . The structure defined in  claim 1 , wherein the front/rear positioning ends at the bottom of the two side racks is comprised of rods, the lower positioning rack and corresponding sheathing part making a through hole or blind hole.  
   
   
       4 . The structure defined in  claim 1 , wherein the front/rear positioning ends placed at the bottom of the two side racks are hollow, the two lower positioning racks and the corresponding sheathing part being comprised of rods.  
   
   
       5 . The structure defined in  claim 1 , further comprising: 
 a track placed between the upper and lower part of the side racks.    
   
   
       6 . The structure defined in  claim 1 , further comprising: 
 a wheel placed on the front/rear positioning ends at the lower part of the side racks.    
   
   
       7 . The structure defined in  claim 1 , wherein the upper positioning rack is comprised of a frame, said frame being comprised of an external frame and at least two internal bars, the two internal bars being placed between two parallel sides to form a through positioning part between spaces.  
   
   
       8 . The structure defined in  claim 1 , wherein the upper positioning rack is comprised of a plate, a rectangle through hole being set up on the two parallel sides of the upper positioning rack to form a through positioning part.  
   
   
       9 . An assembled shelf structure, comprising: 
 two side racks, standing vertically and having an upper positioning part placed on a top thereof and front/rear positioning ends placed on a lower part thereof;    two lower positioning racks, being placed horizontally between the front/rear positioning ends of the two side racks and having sheathing parts placed on two ends of the lower positioning rack, said lower positioning rack being formed by a sheathing part, the two sheathing parts being used for the front/rear positioning ends at the bottom of the two side racks to connect to, and by so doing, positioning a distance between the two side racks at a bottom thereof; and    an upper positioning rack, being placed in between a top of the two side racks and having a through positioning part placed on two sides thereof, said through positioning part being vertically placed on tops of the two side racks for connection, and by so doing, positioning a distance between the two side racks on a top thereof.    
   
   
       10 . The structure defined in  claim 9 , wherein the upper positioning part placed on the upper part of the side racks is comprised of a rod or track or protruding block.  
   
   
       11 . The structure defined in  claim 9 , wherein the front/rear positioning ends at the bottom of the two side racks is comprised of rods, the lower positioning rack and corresponding sheathing part making a through hole or blind hole.  
   
   
       12 . The structure defined in  claim 9 , wherein the front/rear positioning ends placed at the bottom of the two side racks are hollow, the two lower positioning racks and the corresponding sheathing part being comprised of rods.  
   
   
       13 . The structure defined in  claim 9 , further comprising: 
 a track placed between the upper and lower part of the side track.    
   
   
       14 . The structure defined in  claim 9 , further comprising: 
 a wheel placed on the front/rear positioning ends at the lower part of the side tracks.    
   
   
       15 . The structure defined in  claim 9 , wherein the upper positioning rack is comprised of a frame, said frame being comprised of an external frame and at least two internal bars, the two internal bars being placed between the two parallel sides to form a through positioning part between spaces.  
   
   
       16 . The structure defined in  claim 9 , wherein the upper positioning rack is comprised of a plate, a rectangle through hole being set up on two parallel sides of the upper positioning rack to form a through positioning part.