Electronic device having button securing structure

An electronic device comprising:

• a body;
• a disc cover rotatably connected to the body;
• a button comprising a press portion, at least one guiding post, at least one first hook and a plurality of resisting elements, the at least one guiding post, the at least one first hook, and the plurality of resisting elements protruding from a bottom surface of the press portion;
• and
• a button securing structure fixed to the body and defining a button groove for receiving the press portion, the button groove comprising a sidewall for being detachably clasped by the first hooks, the button securing structure comprising:
• at least one sleeve protruding from a bottom surface of the button groove, each sleeve defining a pivot hole for slidably receiving one of the at least one guiding post, the inner wall of the pivot hole defining at least one groove for containing lubricant;
• a sliding bar slidably coupled to the body and detachably clasping the disc cover, one end of the sliding bar resisting against the plurality of resisting elements;
• and
• an elastic member comprising one end clasped by a clasping member protruding from the sliding bar, and an opposite end being clasped by a second hook protruding from the body;
• wherein when the press portion is depressed by an external force, the at least one first hook disengages from the sidewall of the button groove, the at least one guiding post slides along the pivot hole, the plurality of resisting elements pushes the sliding bar to slide to disengage from the body, and when the external force has ceased, the sliding bar is pushed by a restoring force of the elastic element and pushes the plurality of resisting elements and the button to slide, until the at least one first hook clasps the sidewall of the button groove.