US Patent 9681574 Chassis self-unlock mechanism

A chassis self-unlock mechanism includes a tray, a handle assembly and a locking arm. The handle assembly includes a fixed base, a handle and a slider connected to the handle. The fixed base is fixed on the tray, and the slider is movably connected with the fixed base. The locking arm is attached to the tray, an end of the locking arm is fixed to the tray, an actuating slope inclined with respect to the locking arm is formed on the locking arm, a latch laterally protrudes from the locking arm, and the latch protrudes out of an outer surface of the tray. The slider is movable to push the actuating slope, so that the locking arm is bent, and the latch retracts into the tray.