| 摘要 |
A plugging structure for plugging earphones includes an extending mechanism, an operation member and an outer guarding cover. The extending mechanism has elastic arms extending outwards radially in normal conditions. The outer guarding cover encases the elastic arms. The operation member has a coupling ring coupled on the elastic arms and a pushbutton exposed outside the earphone. The pushbutton may be depressed to control the coupling ring to retract the elastic arms or release the elastic arms thereby to adjust the size of the earphone after being inserted in user's ear canal. Thus the uncomfortable feeling occurred to the hanging earphone may be prevented and a snug wearing in user's ear canal can be achieved.
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