Film covering device

The utility model belongs to the technical field of agricultural seeding equipment, and discloses a film mulching device which comprises a front group of supporting wheels and a rear group of supporting wheels, and a wheel bridge is connected between the two groups of supporting wheels; five sets of sleeve shafts are connected to the wheel bridge in a sleeving mode, a supporting rod is arranged on the right side of the middle sleeve shaft, a handrail is arranged at the right end of the supporting rod, a guide wheel supporting rod is arranged at the bottom of the middle of the supporting rod, and the guide wheel supporting rod is inserted into the supporting rod and fixed through a fixing bolt in a screwed mode. Rear rolling wheels are arranged on the left sides of the two sets of supporting wheels, and the front ends and the rear ends of the rear rolling wheels are connected with the sleeve shafts on the outermost edges through connecting rods correspondingly; fixing plates are in threaded connection with the