Multifunctional elastic band and use method thereof

The invention discloses a multifunctional elastic band and a using method thereof, and relates to the technical field of elastic bands, the multifunctional elastic band comprises an elastic band body, one end of the elastic band is provided with a rolling assembly used for changing the exposed length of the elastic band, the surface of the elastic band is sleeved with a fixing assembly used for connecting the elastic band, and the functionality of the elastic band is increased; the spiral spring is connected to the rotating roller in a sleeving mode, one end of the spiral spring is fixedly connected with the rotating roller, the end, close to the elastic band, of the threaded rod is fixedly connected with an ejector block used for being connected with the elastic band, the ejector block is made of hard rubber, and the surface of the end, close to the elastic band, of the limiting plate is slidably connected with the groove wall of the limiting groove. The length of the elastic band can be roughly matched with