Patent attributes
A displacement control device for an extractable power supply is composed of a power supply; a handle which is constituted by an upper arm and a lower arm extended transversally and a grip extended vertically, wherein tail ends of the upper and lower arms are formed with about U-shape grooves respectively; and a casing which is provided with at least more than one rectangular slot, with at least one wall of the slot being provided with a pillar which can be located in or outside of the groove according to a displacement of different angle of the handle subjected to a force, enabling the power supply to be emplaced into or out of the casing. The displacement control device is provided with a two-stage exertion of force and a control of displacement direction, so as to improve a safety of operation process and a robustness of positioning the handle at the outer casing.