Driving wheel assembly of underground culvert pipe robot

The utility model relates to the technical field of driving wheel assemblies, in particular to a driving wheel assembly of an underground culvert pipe robot, which is characterized in that two vertically and symmetrically arranged fixing plates are fixedly connected to the opposite angles of the upper side of a base plate respectively, and driving mechanisms are fixedly connected to the upper parts of the far sides of the two fixing plates; and one ends of the two driving mechanisms penetrate through the two fixing plates correspondingly and are fixedly connected with two upper driving wheels which are flush and symmetrically arranged, a lifting adjusting mechanism is fixedly connected to one side, located below the driving mechanisms, of the fixing plate, and a sliding opening communicating with the lifting adjusting mechanism is formed in the side wall of the fixing plate. The distance between the upper driving wheel and the lower driving wheel can be adjusted through the lifting adjusting mechanism, steel