The invention discloses a hard disk bracket module locking and unlocking mechanism. The mechanism comprises a bracket
front panel, a bracket
handle which is arranged on the bracket
front panel in a mode of being capable of being stored and unfolded in the preset direction and used for being grasped by a hand to apply force, and a locking piece which is arranged on the bracket
front panel in a rotatable mode and used for being connected with the bracket
handle in a clamped mode to lock the bracket
handle in a storage state; and an unlocking button which is arranged on the front panel of the bracket in a pressing manner and is used for forming point-surface abutting with the locking piece in a
stroke so as to drive the locking piece to rotate by a preset angle until the locking piece is separated from the bracket handle. Thus, in the pressing
stroke of the unlocking button, rotary unlocking is formed between the locking piece and the bracket handle through point-to-surface contact between the locking piece and the unlocking button. The contact area between the unlocking button and the locking piece is reduced, the rotating
stroke and the
contact time are short, the unlocking button and the locking piece are not prone to adhesion after long-term use, the
structural reliability is high, and the service life is long. The invention further discloses a
server case, and the beneficialeffects of the
server case are as described above.