Guide wheel capable of preventing thread groove from being blocked

The guide wheel capable of preventing the threaded groove from being blocked comprises a damping rod, the guide groove and a fixing plate, the bottom of the damping rod is connected with a supporting plate, a rolling wheel is movably connected into the supporting plate, the threaded groove is formed in the surface of the rolling wheel, and a protective cover is installed on the surface of the side, close to the supporting plate, of the threaded groove. A spring is fixedly connected to the surface of one side of the protective cover, and a clamping bead is fixedly connected to the surface of one end of the spring. According to the guide wheel capable of preventing the thread groove from being blocked, an operator moves a guide block in the guide groove to drive a protective cover to be in butt joint on the surface of the thread groove, then the guide block and the guide groove form an embedded structure, the protective cover is in a stable state on the surface of the thread groove, and meanwhile a clamping bal