Patent ID: 8292380

Claim:
A rack, comprising: an upper frame comprising a first pillar and a second pillar secured to the first pillar, a first guiding groove is defined in the first pillar, a second guiding groove is defined in the second pillar, and the first guiding groove and the second guiding groove extend substantially along a horizontal plane; a frame post coupled with the first pillar and the second pillar, a third guiding groove is defined in the frame post, the third guiding groove extends uprightly; a confluence member mounted between the first pillar and the second pillar, a plurality of confluence grooves is defined in the confluence member; wherein the plurality of confluence grooves links the first guiding groove and the second guiding groove to the third guiding groove; each of the first pillar and the second pillar comprises a first end and a second end opposite to the first end; a first securing hole is defined in a first upper portion of each first end, and a first lower portion of the first end defines a first cutout aligned with the first securing hole; a second securing hole is defined in a second lower portion of the second end, a second upper portion of each second end defines a second cutout aligned with the second securing hole; and the first securing hole of the first pillar is aligned with the second securing hole of the second pillar; and a connection member comprises two securing portions, the two securing portions are secured in the first securing hole of the first pillar and the second securing hole of second pillar to connect the first pillar and the second pillar together.