Patent ID: 7563113

Claim:
A waterproof plug for plugging into a data port provided on a main body of a portable electronic device, the data port having an outward-directed access and having an inner wall surface to define an internal space therein, the waterproof plug comprising: a cover plate having a data port sealing surface; a sealing flange being perpendicular to and extended from the data port sealing surface of the cover plate by a predetermined distance, and having a continuous outer wall surface defining a predetermined configuration; a water-guiding groove being provided along the continuous outer wall surface of the sealing flange at a position adjacent to the cover plate; a mounting plate, which is extended from a lower edge of the cover plate in an extension direction the same as that of the sealing flange, such that when the sealing flange of the waterproof plug is plugged into the internal space of the data port, the mounting plate is externally located beneath a bottom surface of the main body of the portable electronic device; and at least one through hole provided on the mounting plate for a screw to thread therethrough to thereby fasten the mounting plate to the bottom surface of the main body of the portable electronic device; whereby when the sealing flange of the waterproof plug is plugged into the internal space of the data port via the access thereof, the cover plate is faced toward and fitly closes the access of the data port with the continuous wall surface of the sealing flange tightly bearing against the inner wall surface of the internal space of the data port.