Multifunctional fence

The utility model discloses a multifunctional fence. The device comprises a fixed seat, a first fence and a second fence are welded to the top of the fixing base. Lifting grooves are formed in the sides, close to each other, of the first fence and the second fence; first bearings are welded to the inner wall of the top and the inner wall of the bottom of the lifting groove correspondingly. The same lead screw is welded to the inner rings of the two first bearings located in the same lifting groove. Threaded holes are formed in the tops of the two sliding blocks; and the two lead screws are inthreaded connection with the two threaded holes correspondingly, the sides, away from each other, of the two sliding blocks make sliding contact with the inner walls of the sides, away from each other, of the two lifting grooves correspondingly, mounting blocks are welded to the sides, close to each other, of the two sliding blocks correspondingly, and one end of the rotating rod penetrates through the second bearing, ext