Pillar insertion combination rack system

A pillar insertion combination rack made in a rectangular or polygonal and a single layer or multiple layers includes an upper frame, a lower frame, a top, multiple pillars, multiple clamping members, and multiple connection rods;

• wherein the upper frame being made of a metal wire material in continuous form coiled at each corner to define an upper ring and running straight between any two corners to be performed a spot soldering at where both ends of the wire meet;
• the lower frame being made of a metal wire material in continuous form coiled at each corner to define an upper ring and running straight between any two corners to be performed a spot soldering at where both ends of the wire meet;
• the diameter of the upper ring being smaller than that of the lower ring;
• each pillar containing multiple sections with a circumferential slot defined between any two abutted section;
• the clamping member comprised of two identical halves facing each other secure the pillar at where the pillar to be inserted into the limitation corner by biting two circumferential slots of the pillar;
• the connection rod made of the same metal wire material in a waveform being disposed between and soldered to both of the upper frame and the lower frame with both of the upper ring and the lower ring at each corner being concentrically arranged;
• each pillar with its clamped portion being inserted into the lower ring and the upper ring in sequence of its respective limitation corner;
• and the top being placed in the upper frame of the rack.