Greenbelt trimming device

The invention relates to the technical field of city greening engineering, in particular to a greenbelt trimming device which can automatically trim a greenbelt, thereby improving trimming efficiencyof the greenbelt and lowering trimming cost of the greenbelt. The greenbelt trimming device comprises an operation box, four advancing rods, four rollers, two connection rods, a transverse rod, an oiltank, a separating plate, a power generator, a trimming motor, a transmission wheel, a rotating rod, a rotating wheel, a transmission belt, a rotating chain wheel and a chainsaw blade; an operation cavity is formed inside the operation box, the tops of the four advancing rods are fixed on the left front side, the right front side, the left rear side and the right rear side of the bottom of the operation box respectively, the centers of the four rollers are rotatably connected with the bottom ends of the four advancing rods respectively, the bottom ends of the connection rods are fixed on theleft side and the right sid