Fluid pipeline flexible connector sealing performance internal pressure test bench

The utility model discloses a fluid pipeline flexible interface sealing performance internal pressure test bench, comprising a support system, a tightening system, an upper end loading mechanism, a water injection pipe, a drainage pipe, a pressurization air pipe and a control system, the support system comprises a pedestal, two triangular supports are distributed on the pedestal, and the two triangular supports are connected with the upper end loading mechanism. A middle support is arranged between the two triangular supports, sliding rails are arranged on the two sides of the base, a portal frame capable of sliding left and right is arranged on the sliding rails, the upper end loading mechanism is arranged on the portal frame, the portal frame comprises a top transverse frame and longitudinal frames arranged on the two sides of the transverse frame in a supported mode, and lateral stabilizing mechanisms are installed on the longitudinal frames. And the lateral stabilizing mechanism comprises a front side sta