Patent ID: 7815446

Claim:
A flash memory device, comprising: a movable housing defining a receiving cavity; a control board having a circuit board and a plug connecting with the circuit board, the circuit board retained in the receiving cavity, the plug extending out of the receiving cavity; an outer shield defining an opening at one end thereof; and a sleeve movably ringed on one end of the movable housing and enclosing the plug; wherein the movable housing is movably mounted in the outer shield, and the movable housing has an elastic section with a button coupled thereon, wherein the button pushes the plug to move in or out of the sleeve and the outer shield, wherein the outer shield defines an indention, and the sleeve comprises a rib movably received in the indention, wherein the sleeve defines a first slot, and the movable housing defines a post which can move in the first slot, wherein the sleeve defines a second slot and a cutout adjacent to the second slot, and the movable housing defines a spring arm with an emboss thereon, wherein the emboss engages with the cutout for driving the sleeve moving forwardly relative to the outer shield, when the sleeve moves out of the opening, the emboss jumps into the second slot and drives the plug moving out of the sleeve, wherein the sleeve comprises an elastic portion between the first slot and the second slot, and the elastic portion has a protrusion extending outwardly therefrom, the outer shield defines a locking hole engaging with the protrusion when the sleeve moves out of the opening.