Multifunctional working device for bulldozer

The utility model relates to a multifunctional working device for a bulldozer, belonging to the technical field of engineering machinery. The technical scheme is as follows: the working device comprises a scraper bucket, an opening-backward U-shaped bracket and two rotating bucket cylinders, wherein the rear end of the U-shaped bracket is hinged with a frame of the bulldozer, and the front end of the U-shaped bracket is hinged with a lifting cylinder of the bulldozer; the scraper bucket is located in front of the U-shaped bracket and rotatably connected with the U-shaped bracket through a lower supporting seat on the back of the scraper bucket; and the two rotating bucket cylinders are respectively and rotatably connected with middle parts of two side beams of the U-shaped bracket, and piston rods of the two rotating bucket cylinders are respectively and rotatably connected with upper supporting seats at the two sides of the scraper bucket. According to the multifunctional working device for the bulldozer, th