PROBLEM TO BE SOLVED: To resolve a problem of a small adhesive surface between a conventional dust-proof plug for a mobile phone and an ornament, which may cause them to be detached from each other and, in some cases, cause the detached plug alone to remain in a headphone jack without allowing it to be pulled out.;SOLUTION: A dust-proof plug for a mobile phone comprises: an ornament 1; and a rubber cap 2. An alloy pin 3 is fixedly provided on the ornament 1. A groove 31 is provided on a sidewall of the alloy pin 3. A socket 21 engaging the alloy pin 3 is provided in the rubber cap 2. The alloy pin 3 is fixed with an adhesive after inserted into the socket 21.;COPYRIGHT: (C)2014,JPO&INPIT
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