Electric commercial vehicle cooling system pipeline testing fixture

The utility model discloses an electric commercial vehicle cooling system pipeline testing fixture, which comprises a tool table and is characterized in that the tool table is provided with a supporting block assembly, a first cylinder, a second cylinder and a third cylinder, the supporting block assembly is arranged on the tool table and used for supporting two pipelines with different shapes, and the first cylinder is arranged on the tool table. The output end of the first air cylinder is connected with a connecting block, two connecting cylinders are arranged on the connecting block side by side and arranged opposite to one ends of the two bent pipes respectively, hollow sealing plugs are arranged in the two connecting cylinders respectively, and connectors used for being connected with an inflator pump are arranged on the outer side walls of the two connecting cylinders respectively. Sealing heads are arranged at the output ends of the second air cylinder and the third air cylinder. The utility model prov