Complete-set corrugated pipe air tightness testing device

The utility model provides a device for testing the air tightness of a set of corrugated pipes, which comprises a testboard, a top plate is fixed above the testboard through a support, a plurality of cylindrical plugs capable of sleeving the thick ends of the set of corrugated pipes are mounted at the bottom of the top plate, and a plurality of clamping mechanisms in one-to-one correspondence with the plurality of cylindrical plugs are mounted on the top plate. The multiple clamping mechanisms can clamp the thick head ends arranged on the multiple cylindrical plugs in a sleeving mode at the same time, pressure sensors are installed at the bottoms of the multiple cylindrical plugs, and multiple insertion pipes which can be sleeved with the thin head ends of the corrugated pipes and correspond to the multiple cylindrical plugs one to one are installed on the testing table. And an air pumping mechanism capable of supplying air to the plurality of intubation tubes at the same time is mounted in the test board. Th