Inclinometer pre-dredging device

The invention provides an inclinometer pre-dredging device. The inclinometer pre-dredging device comprises a rod body, an upper guide wheel assembly, a lower guide wheel assembly and a traction device, wherein a first through hole and a second through hole are formed in the rod body; the upper guide wheel assembly comprises a first connecting rod, a first hinge shaft, a first high wheel and a first low wheel, the lower guide wheel assembly comprises a second connecting rod, a second hinge shaft, a second low wheel and a second high wheel, and one end of the traction device is fixed to the portion, located above the second hinge shaft, of the second connecting rod or one end of the traction device is fixed on the second high wheel, and the other end extends out of the inclinometer. The pre-dredging device is easy to operate, the clamping stagnation problem of the pre-dredging device is well solved, and the rescue efficiency is improved. 本发明提供了一种测斜管预通器。测斜管预通器包括杆体、上导轮总成、下导轮总成和牵引装置，杆体上设有第一通孔和第二通孔；上导轮总成包括第一连杆、第一铰接