Flexible coupling mechanism and displacement sensing device with same

The invention provides a flexible coupling mechanism and a displacement sensing device with the same. The flexible coupling mechanism comprises a flexible bearing part and a connecting shaft inserted into the flexible bearing part. The flexible bearing part comprises a clamping jaw part, the clamping jaw part is composed of a plurality of clamping jaws, each clamping jaw comprises a fixed end and a free end, the free ends of the clamping jaws jointly define a channel allowing the connecting shaft to penetrate through, and the channel is used for supporting and limiting the connecting shaft. The displacement sensing device comprises a connecting rod, a swing arm and an angle sensor. One end of the connecting rod is connected with a tested assembly through the flexible coupling mechanism, the other end of the connecting rod is connected with one end of the swing arm through the flexible coupling mechanism, and the other end of the swing arm is connected to the angle sensor. The flexible coupling mechanism and t