Patent ID: 8567883

Claim:
A rack mechanism for placing server, comprising: a sliding rail; a cabinet comprising: a top portion comprising a lid defining at least two holes; and a bottom portion slidably connected to the sliding rail; at least two first fixed beams parallelly arranged above the top portion; at least one guide rail fixed to the at least two first fixed beams and positioned between the cabinet and the at least two first fixed beams; two rods fixed inside the cabinet and arranged under the lid; and at least two roller assemblies, wherein the at least two roller assemblies are respectively connected to the two rods, each of the at least two roller assemblies comprises a shelf and a pulley, the shelf comprises a first end and a second end, the shelf passes through one of the at least two holes defined on the lid with the first end of the shelf being fixed to the rod, the pulley is arranged to the second end; wherein when the bottom portion slides along the sliding rail, the pulley rolls along the at least one guide rail.