Water detection robot of sewage pipeline based on pneumatic drive mechanism

The invention provides a water detection robot of a sewage pipeline based on pneumatic drive mechanism. The robot mainly comprises a front installation disk, a real installation disk, a crank multi-link foldable mechanism, a water detection execution mechanism and a lower wall supporting mechanism, wherein a telescopic cylinder is disposed under the front installation disk and the rear installation disk; two ends of the telescopic cylinder are connected to the front installation disk and the rear installation disk; the water detection execution mechanism is fixed on the front installation diskby screws; and the crank multi-link foldable mechanism is fixed on the front installation disk and the rear installation disk respectively. The lower wall supporting mechanism comprises a lower wallsupporting air cylinder, walking wheels, section aluminum and hinged plates, wherein the lower wall supporting air cylinder is hinged from the front installation disk and the real installation disk bythe section aluminum; and