Extension socket

Abstract

An extension socket includes a shell, a connecting wire, a wire box, a rotating shaft and a take-up reel. An electric connecting socket being formed in the shell, and a side wall of the shell being surrounded to form a first accommodating cavity. The electric connecting wire being electrically connected with the electric connecting socket. The wire box being arranged in the first accommodating cavity, and a side wall of the wire box being surrounded to form a second accommodating cavity. The rotating shaft being connected to an inner wall of the wire box. And the take-up reel being arranged in the second accommodating cavity and rotatably connected with the rotating shaft, and the take-up reel being used for winding the electric connecting wire.

Dependencies are inferred from the claim text.