Shelving structure

Abstract

A shelving structure may include a plurality of sleeves and wire shelves. Each of the sleeves has an upper opening and a lower opening for connecting purpose, and a plurality of connecting holes are formed on the sleeve. Each of the wire shelves comprises a bearing surface formed by welding of cross steel bars, and each of edges of the wire shelf is formed by welding of the steel bar. Each of inserting spaces is formed at the corner of two adjacent edges of the wire shelf. Each of the sleeves is connected at the corner of the wire shelf, and each of the steel bars on the edge of the wire shelf is connected to the connecting holes of two adjacent sleeves at two ends. The sleeve is stamped by a module of a stamping machine so as to deform and connect the connecting hole and the steel bar together.

What is claimed is: 
     
         1 . A shelving structure comprising a plurality of sleeves and a plurality of wire shelves;
 wherein each of the sleeves has two openings respectively and axially penetrating through an upper end and a lower end thereof for connecting purpose, and a plurality of connecting holes are formed on the outer periphery of the sleeve; each of the wire shelves comprises a bearing surface which is formed by welding of cross steel bars, and each of edges of the wire shelf is formed by welding of the steel bar, and each of inserting spaces is formed at the corner of two adjacent edges of the wire shelf; each of the sleeves is connected at the corner of the wire shelf, and each of the steel bars on the edge of the wire shelf is connected to the connecting holes of two adjacent sleeves at two ends; and the sleeve is stamped by a module of a stamping machine, and the connecting hole and the end of the steel bar are deformed by stamping process so as to be firmly connected together.   
     
     
         2 . The shelving structure of  claim 1 , wherein each of the connecting holes has an outward protruding periphery formed at the outer periphery thereof. 
     
     
         3 . The shelving structure of  claim 1 , wherein each of the connecting holes is a through hole. 
     
     
         4 . The shelving structure of  claim 1 , wherein each of the connecting holes is a slotted hole. 
     
     
         5 . The shelving structure of  claim 1 , wherein each of the sleeves is a tapered cylindrical sleeve. 
     
     
         6 . The shelving structure of  claim 1 , wherein the wire shelf is a single-layer wire mesh. 
     
     
         7 . The shelving structure of  claim 1 , wherein the wire shelf is a double-layer wire mesh. 
     
     
         8 . The shelving structure of  claim 1 , wherein each of the two ends of the steel bar has a locating groove. 
     
     
         9 . The shelving structure of  claim 1 , wherein when stamping, the connecting hole is abutted against a stamping fixture at the inner periphery thereof.