Patent ID: 8737078

Claim:
A retaining apparatus for retaining a computer server on a server cabinet; comprising: an outer case configured to be secured to the computer server; an inner case movably received in the outer case; a rotation element including a sleeve, a first arm, and a second arm, wherein both the first and second arms are connected to the sleeve; the sleeve is rotatably received in the inner case, the first arm is exposed out of the outer case, and the second arm contacts the inner case; an operation mechanism including an adjusting axle, the adjusting axle rotatably received in the inner case, and the sleeve coiled on the adjusting axle; and wherein when the inner case reaches a first position in the outer case, the second arm is resisted by the inner case and drives the rotation element to rotate, and the first arm and the outer case is driven to clamp a portion of the server cabinet and secure the retaining apparatus to the server cabinet; and when the inner case reaches a second position in the outer case, the second arm is not resisted by the inner case, and the first arm and the outer case release the portion of the server cabinet which is clamped when the inner case reaches the first position.