The invention discloses an efficient space-use type
damper of an end portion straight brace secondary displacement amplification device. The efficient space-use type
damper of the end portion straightbrace secondary displacement amplification device comprises a vertical type moving displacement support, a T-shaped overhanging positioning bracket, a T-shaped connecting plate, a displacement amplification rod, an input rod with a rack, a duplicate gear, an output rod with a rack, a
damper connecting piece, an input end guide gear, a damper device, a damper fixing support and the like. The efficient space-use type damper of the end portion straight brace secondary displacement amplification device performs first amplification on the
relative displacement between
layers of a building throughthe displacement amplification rod when the deformation of the building structure is small or slow, then the displacement of the first amplification is subjected to second amplification through the duplicate gear, two-time amplification is performed, so that the damper generates greater
relative displacement, the damper generates greater damping force, and the better shock
absorption effect is achieved. At the same time, the efficient space-use type damper has the characteristics of simple structure, considerable cost, convenient installation, convenient operation, flexible
layout, firm and durable and the like, and has broad prospects of development and application.