Patent ID: 8905764

Claim:
A rotary plug comprising: a base whereon an accommodating space is formed; a first annular slot structure disposed on an inner wall of the accommodating space, a first hole being formed on the first annular slot structure; a second annular slot structure disposed on the inner wall of the accommodating space and different from a position of the first annular slot structure, a second hole being formed on the second annular slot structure; a first conductive component disposed inside the first annular slot structure, the first conductive component comprising a first protrusion, and the first protrusion inserting into the first hole; a second conductive component disposed inside the second annular slot structure, the second conductive component comprising a second protrusion, and the second protrusion inserting into the second hole; a bridging component rotatably disposed inside the accommodating space; a positive terminal, a first end of the positive terminal protruding from a bottom surface of the bridging component, a second end of the positive terminal protruding from a lateral surface of the bridging component and movably inserting into the first annular slot structure for contacting the first conductive component, wherein the second end of the positive terminal is clamped by two inner lateral walls of the first annular slot structure for preventing the bridging component from separating from the accommodating space; and a negative terminal, a first end of the negative terminal protruding from the bottom surface of the bridging component, a second end of the negative terminal protruding from the lateral surface of the bridging component and movably inserting into the second annular slot structure for contacting the second conductive component.