Power cord winding device and electric vacuum cleaner use the device

The present invention provides an electric vacuum cleaner capable of preventing the superposition of the power cord in the vacuum cleaner so that the vacuum cleaner is easy to use and the power cord can be smoothly winded and pulled out. The inventive vacuum cleaner is provided with a power cord winding device winding the power cord into a swirl shape segment. The power cord winding device includes: a coiler (20) for winding the power cord (16); a rotor drum (13), which is formed by disc-shaped floor and is located below the coiler for placing the winded power cord; and a rotary body (19) which is capable of freely rotating in the winding direction of the power cord and is provided on the opposite position of the rotor drum separated from the power cord. In this way, the self rigidity of the power cord winding device can be improved, the winding space of the power cord can be held constant, simultaneously the winding resistance force can be diminished by the rotary body to ensure thatthe winding of the power