Multifunctional metal mobile phone face shell

Abstract

This utility model discloses a multifunctional metal mobile phone cover, relating to the field of mobile phone cover technology. It includes a metal casing body, and its innovation lies in: an inwardly extending U-shaped dustproof protrusion integrally formed at the edge of the SIM card slot opening, covering the left and right sides and top edge of the opening; the inner wall of the dustproof protrusion has a sloping structure, with its end connected to a U-shaped sealing groove and fitted with an elastic sealing strip. When the SIM card tray is inserted, the sloping structure guides the tray to precise positioning and compresses the sealing strip, causing axial compression and radial expansion deformation, tightly filling the gap between the tray and the casing; simultaneously, the U-shaped sealing groove firmly fixes the sealing strip, forming a dynamic sealing interface. This design overcomes the technological limitations of precision molding of metal casings, effectively blocking the path of dust intrusion from the tray's mating gap through the integrated protrusion, sloping guidance, and sealing groove compression mechanism, thus solving the long-term sealing defects of metal covers in the SIM card slot area.

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