Shockproof device with built-in damping inflatable rubber mold sheet

The utility model discloses a shockproof device with a built-in damping inflatable rubber mold sheet. The shockproof device comprises a mounting bottom plate, a pipe body, a flange, a fixed disc, a middle shaft, a bearing, a supporting spring and a damping assembly, the pipe body is fixed on the mounting bottom plate, the pipe body is provided with an inflation cavity with an upward opening, and an inflation opening communicated with the inflation cavity is formed in the side face of the pipe body; the flange covers the opening of the inflation cavity and comprises a mounting disc, a fixing ring and a rubber sheet, the fixing ring is located on the periphery of the mounting disc and fixedly connected with the top of the pipe body, and the rubber sheet is integrally formed and connected between the mounting disc and the fixing ring; a flange is composed of an installation disc, a fixing ring and a rubber sheet, a damping assembly is arranged in an inflation cavity in a matched mode, and an annular damping fin