Prefabricated part damping and supporting device

The utility model discloses a damping and supporting device for a prefabricated part. The device comprises a first supporting plate, a second supporting plate and shock absorbers, the shock absorber comprises a top plate, a bottom plate and a central shock absorption device, a peripheral shock absorption spring and a protective sleeve are sequentially arranged on the periphery of the central shockabsorption device, the central shock absorption device comprises a guide rod, a pressure spring plate, a first shock absorption spring and a second shock absorption spring, and the guide rod penetrates the top plate and the second supporting plate to be connected with limiting nuts; a support cylinder is fixed on the upper surface of the second support plate; three supporting rods are arranged inthe supporting cylinder, the supporting rods are connected with the supporting cylinder through reset springs, every two adjacent supporting rods are connected through a connecting rod, the tops of the supporting rods are sle