Abstract: A bicycle cellular phone holder structure includes a base seat having a first end and a second end. The first end is formed with a first threaded hole in which a first rod member is screwed. One end of the first rod member is assembled with a first holding member, while the other end of the first rod member is mated with a rotational member. The rotational member is formed with a second threaded hole in which a second rod member is screwed. The second rod member is assembled with a second holding member. When rotating the first rod member, the first holding member is moved toward the outer side of the first end or the second end and the second holding member is moved toward the outer side of the second end or the first end so that the first and second holding members are synchronously moved.

Abstract: A waterproof structure applied to an alternating current plug and an alternating current socket includes a plug body and a socket body. The plug body has an inserting portion, a covering portion formed thereon, a limiting portion formed between the plug body and the covering portion, and a washer positioned at one end of the limiting portion to be adjacent to the inserting portion. The socket body has an opening relative to the inserting portion for insertion, and a receiving portion formed thereon suitable for the covering portion to be engaged. The structure will not only be more stable than before to prevent separation occurred by an external force, but also be waterproof equally.

Abstract: A waterproof structure applied to an alternating current plug and an alternating current socket includes a plug body and a socket body. The plug body has an inserting portion, a covering portion formed thereon, a limiting portion formed between the plug body and the covering portion, and a washer positioned at one end of the limiting portion to be adjacent to the inserting portion. The socket body has an opening relative to the inserting portion for insertion, and a receiving portion formed thereon suitable for the covering portion to be engaged. The structure will not only be more stable than before to prevent separation occurred by an external force, but also be waterproof equally.