| 摘要 |
A car cigarette lighter is suitable to be received in different sizes of sockets each of which includes a positive pole and a negative pole therein. The car cigarette lighter includes a cylinder body, a neck extending from the cylinder body, a head extending from the neck. Four elongated grooves and four elongated ridges are alternately disposed with each other in a periphery of the cylinder body. Two elastic wings are formed at two opposite ridges. Two U-shaped engaging devices each including a pair of prongs are received in the four grooves, with each prong being received in a corresponding rear section of a corresponding elongated groove and leaving a front section of the groove unoccupied. Each U-shaped engaging device is slidable along the corresponding pair of elongated grooves. The lighter is inserted into the socket causing the head and the wings thereof to be respectively in electrical contact with the positive pole and the negative pole of the socket, and the U-shaped engaging devices are allowed to be pushed into the socket, thereby firmly engaging the lighter with the socket.
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