Patent ID: 8072848

Claim:
An adaptation device for a hard disk drive, comprising: a lower casing member, which comprises a connection interface and forms a bottom slot in a front portion of a bottom thereof, retention flanges on side walls thereof, and pivot receiving holes in rear portions of the side walls; a retention board, which functions to size-adjustably hold the hard disk drive and forms a connection interface receiving opening in a front end thereof, rotation shafts on a rear end, and a pawl on a bottom thereof to engage the bottom slot of the lower casing member; a rotary board, which comprises a hold-down plate and has a rear end forming extended shaft slots for slidably and rotatably receiving the rotation shafts of the retention board, the rotary board further forming pivots below the shaft slots for being rotatably received in the pivot receiving holes of the lower casing member; and a cover, which forms rotary board slide rails and cover slide rails, the cover slide rails being receivingly engageable the retention flanges of the lower casing member, the rotary board slide rails being engageable with side edges of the rotary board; wherein the hard disk drive is connected to the connection interface and wherein the cover and the rotary board are closed forward through the rotation shafts of the retention board and the pivots of the rotary board cooperating with the shaft slots to have the hold-down plate holding down a top of the hard disk drive, and then the cove is moved backward to be fixed under the retention flanges of the lower casing member.