Trackless bridge inspection vehicle traveling device

The invention discloses a trackless bridge inspection vehicle traveling device which comprises a grasping claw assembly, a traveling hanging piece, a first traveling framework and a second traveling framework. The trackless bridge inspection vehicle traveling device has the benefits that the trackless bridge inspection vehicle traveling device is applicable to an upper chord inspection vehicle and a lower chord inspection vehicle, and can climb up and down a slope, climb up an arc surface, and even crawl up vertically; tracks are not needed to be paved, so that the tracks can be saved; furthermore, the weight of the whole inspection system for the inspection vehicle and the tracks can be reduced, so that the bridge load is low, and the transportation cost is low; and the trackless bridge inspection vehicle traveling device has good economic and social benefits, and is suitable for being popularized and used.