An integrated mechanism is disclosed. An electronic device includes a slot, an engaging groove, and a power input portion. The engaging groove communicates with the slot and the power input portion is disposed in the slot. An adaptor is detachably connected to the electronic device and includes a grip, a power line, an extended connection bar, a tenon, and a power output portion. The power line is connected to the grip. The extended connection bar is connected to the grip. The tenon is formed on the extended connection bar. The power output portion is formed on the extended connection bar and is electrically connected to the grip and power line. When the adaptor connects to the electronic device, the extended connection bar is inserted into the slot, the tenon is selectively engaged or rotated in the engaging groove, and the power output portion connects to the power input portion.