Patent ID: 8256734

Claim:
A support apparatus comprising: a base defining at least one engaging projection on a top thereof; a pair of supporting arms, each supporting arm comprising a body having a first curved end and a second curved end extending from the two opposite ends of the body, respectively, the first curved end rotatably connected to the base; and a locking element comprising a rail, two curved protruding blocks extending from the two opposite ends of the rail; wherein the second curved end is positioned in the protruding block, when the at least one engaging projection is engaged with one side of an external device, the supporting arms are operable to rotate relative to the base and the locking element sits on top of the external device, and the rail and the protruding blocks hold another side of the external device; and the second curved end has cut-away a segment along the extension direction thereof and forms a wedge-shaped end, one side of each protruding block defines a receiving hole, the wedge-shaped end is positioned in the receiving hole, and the locking element may rotate a predetermined angle range relative to the wedge-shaped end.