Telescopic charging wire with good charging stability

The utility model discloses a telescopic charging line with good charging stability, which comprises an upper cover plate, a winding spring, an upper shell, a reel, a data line, a lower shell, a lowerstrip spring, a lower cover plate and a USB port, the upper cover plate covers the upper shell, the lower cover plate covers the lower shell, and the winding spring is arranged between the upper cover plate and the upper shell. The lower cover plate and the lower shell are coaxially arranged, the upper shell and the lower shell are fixedly connected to form a hollow cavity, the reel and the dataline are arranged in the cavity, a fixing shaft is arranged on the reel, mounting grooves are formed in the two end portions of the fixing shaft, and the reel and the data line are fixedly connected through the mounting grooves. One end of the upper winding spring and one end of the lower winding spring are fixedly installed in the installation groove respectively, and the other end of the upper winding spring and the othe