Cylindrical object fixing structure of truck

The utility model discloses a barrel-shaped object fixing structure of a truck. The barrel-shaped object fixing structure comprises a bottom plate, an arc-shaped plate and a supporting roller. According to the barrel-shaped object fixing structure of the truck, placing mechanisms are arranged at a truck hopper of the truck at equal intervals, barrel-shaped objects are placed on the placing mechanisms, each placing mechanism comprises a bottom plate, arc-shaped plates are symmetrically and fixedly connected to the top face of each bottom plate, supporting rollers are symmetrically and rotationally connected to the inner sides of the tops of the arc-shaped plates, and the barrel-shaped objects are placed on the supporting rollers; the two corners of the bottom plate are fixedly connected with rope tying seats, the other two corners of the bottom plate are provided with rope penetrating rings, the rope penetrating rings and the rope tying seats are jointly connected with a binding rope, the binding rope is press