Patent attributes
A combination rack structure includes a predetermined number of support plates, connecting strips and side frames. Each of the support plates has a rectangular shape. Each of the connecting strips is provided with three holding grooves each longitudinally extended through each of the connecting strips. Each of the connecting strips has a periphery provided with elongate recessed portions each located between any two of the holding grooves. Each of the recessed portions is provided with a plurality of extensions which are perpendicular to an axial direction of each of the recessed portions and are spaced from each other with a proper interval. The extensions are used for holding and resting. Each of the side frames is bent to have a hexagonal shape. The support plates are combined with the connecting strips to construct a hexagonal rack.