Patent ID: 8056988

Claim:
A cabinet assembly comprising at least one cabinet and each one of the at least one cabinet being a frame and having multiple erect bars; a front board; a rear board; a bottom board having a lower surface; a left opening; a right opening; a wheel assembly being mounted on the lower surface of the bottom board and having multiple wheels being mounted on the lower surface of the bottom board; and a substrate being mounted below the bottom board and contacting the wheels, allowing the wheels to slide on the substrate and holding the cabinet; and an inner chamber being formed between the front board, the rear board and the bottom board and communicating with the left opening and the right opening; wherein the wheel assembly of each one of the at least one cabinet has two lines of wheels being mounted longitudinally on the lower surface of the bottom board of the cabinet in parallel and respectively near the left opening and the right opening of the cabinet; each line of the wheels has a first group of wheels being mounted longitudinally on the lower surface of the bottom board near the front board of a corresponding one of the at least one cabinet; and a second group of wheels being mounted longitudinally on the lower surface of the bottom board near the rear board of the corresponding cabinet; the substrate of each one of the at least one cabinet has an upper surface, a lower surface, a front, a rear, two sides and two channels being formed in the upper surface of the substrate, corresponding to the second groups of wheels of the cabinet and allowing the second groups of wheels to slide along the channels; the first group of the wheels is located outside the channels of the substrate and is substantially flush with the lower surface of the substrate, and the substrate of each one of the at least one cabinet further has a first connector being a longitudinal bar and being formed in one of the sides of the substrate; and a second connector being a longitudinal slot corresponding to the longitudinal bar, being formed in the other side of the substrate; whereby the second connector of one substrate connects the first connector of an adjacent substrate.