Annular seismic mitigation and isolation damper and seismic mitigation and isolation device

The utility model relates to an annular shock absorption and isolation damper and a shock absorption and isolation device, the damper comprises an annular damper body with an opening, the damper body is spiral, the cross section of the damper body is rectangular, the two ends of the opening of the damper body are arranged at intervals up and down, and the two ends are respectively provided with an anchoring section; each anchoring section is connected with the force transmission connecting part; the seismic mitigation and isolation device comprises a seismic mitigation and isolation support, at least one annular seismic mitigation and isolation damper is connected between the outer edge of a middle seat plate and the outer edge of a lower seat plate of the seismic mitigation and isolation support, and two anchoring sections of the annular seismic mitigation and isolation damper are connected with the middle seat plate and the lower seat plate through force transmission keys and bolts respectively. The damping