Degassing test tool for observing engine water inlet and outlet pipe

The utility model discloses a degassing test tool for observing water inlet and outlet pipes of an engine. The sight glass comprises a sight glass tube, a rubber tube, a T-shaped hoop, a mounting seat, a bolt, a nut, a rubber gasket and a rubber protection pad, the number of the installation bases is two. A clamping groove is formed in the inner wall of one end of the mounting base; a flange structure is arranged on the outer wall of the other end; the rubber gasket is arranged at the bottom of the clamping groove; the rubber protection pad is arranged in the clamping groove; the bolts penetrate through the two installation bases and then are locked by the nuts, so that the two ends of the sight glass pipe are tightly sealed by the rubber gaskets and the rubber protection pads, the rubberpipe is arranged on the flange structures at the ends of the installation bases in a sleeving mode and connected with the flange structures in a fastened mode through the T-shaped hoops, and the problem that an engine water i