Track type inspection robot walking mechanism

The invention relates to a track type inspection robot walking mechanism. The track type inspection robot walking mechanism comprises support plates, at least two wheel discs and a plurality of crawling wheel claws, wherein the plurality of crawling wheel claws are connected from end to end to form a chain transmission mechanism; each support plate is of a U shape with a small top and a large bottom; the support plates and the wheel discs are fixed on a robot; the bottoms of the support plates are in contact with the inner wall of the chain transmission mechanism; the support plates are located at transition positions of the crawling wheel claws for grasping and releasing an operation tack; the robot drives the wheel discs to rotate; the wheel discs drive the crawling wheel claws to move;when the crawling wheel claws move to the support plates, the crawling wheel claws are in contact with the support plates, so that the crawling wheel claws are opened; when the crawling wheel claws continuously moves until th