Protection shade used for small-and-medium-size channel and capable of closing and opening gate

The utility model discloses a protection shade used for a small-and-medium-size channel and capable of closing and opening a gate. A face on the middle position of a rocking handle is provided with an irregularly-shaped hole. An irregularly-shaped bolt is installed in the irregularly-shaped hole. A hinge is welded on the back face of the protection shade such that the protection shade is welded to an upper connection board fixedly through the hinge. The upper connection board and a lower connection board are welded to a beam-bearing box iron piece. The upper connection board and the lower connection board are provided with bolt holes connected with an opening-and-closing engine base and the opening-and-closing engine base is fixed on the upper connection board and the lower connection board through bolts. A shell of the protection shade is provided with a screw hole. The screw hole extends inward in the horizontal direction into the shell and a nut is welded in the screw hole. A protection pipe is welded on t