And water supply and drainage sewage pipeline is convenient to dredge

The utility model discloses a convenient-to-dredge water supply and drainage sewage pipeline which comprises an upper cover plate, a movable rod, a lower cover plate, a first shifting plate and a connecting box, a notch is formed in the top of the connecting box, a lower cover plate is fixed on the connecting box at the top of the notch, and a rectangular groove is formed in the top of the lower cover plate. And an upper cover plate is fixed to the lower cover plate at the top of the rectangular groove, a movable rod is movably connected to one side of the bottom of the inner side of the connecting box, a first shifting plate is movably connected to one side of the movable rod through a first pull rod, and a second shifting plate is movably connected to one side of the first shifting platethrough a second pull rod. Through the arrangement of the movable rod, the first pull rod, the lower cover plate, the first shifting plate, the second pull rod and the second shifting plate, the problems that a water supply