Coiler

The utility model relates to a coiler, which is used for coiling and protecting wires. The coiler comprises a bottom housing and a rotating wheel, wherein the cross section of the rotating wheel is I-shaped; the rotating wheel consists of a rotating blade, a support column and a chassis, wherein a threading slot is arranged in the middle of the rotating blade and extends downwards onto the support column, a hollow part between the rotating blade and the chassis is a wire installing part; the lower end surface of the chassis is downwards and convexly provided with an O-shaped ring, the outer wall of the O-shaped ring is provided with sawteeth, the lower part of the rotating wheel is cooperatively arranged in the bottom housing, a fixed column which is matched with the rotating wheel is upwards and convexly arranged in the middle of the bottom housing; the side wall of the bottom housing is provided with a rotating switch which is matched with the sawteeth, and a clockwork spring is arranged between the bottom