A shock absorber

Abstract

The invention relates to a damper, in particular to an anti-seismic damper, including a mounting plate; two mounting plates are provided, and an upper fixing plate and a lower fixing plate are respectively fixedly installed on the two mounting plates, and the upper fixing plate The fixed plate and the lower fixed plate are arranged oppositely, and at least two movable columns are fixedly installed on the upper fixed plate, and the lower ends of the movable columns are inserted into the shock-absorbing cavity provided on the lower fixed plate, and are connected with the deformation shock-absorbing assembly. The inner side of the damping cavity is also fixedly installed with a fixed column, the upper end of which is fixedly equipped with a second electromagnet and inserted in the cavity provided on the movable column, and the upper end of the cavity on the movable column is provided with a first electromagnet. The invention is novel in design. By cooperating the deformation damping assembly with two electromagnets, the deformation damping assembly first performs preliminary shock absorption when the shock is received. When the vibration amplitude is large, the two electromagnets are energized at the same time. The repulsive force generated between them realizes secondary shock absorption, thereby improving the shock absorption effect.

Description

technical field [0001] The invention relates to a damper, in particular to an anti-seismic damper. Background technique [0002] At present, with the rapid development of my country's urbanization process and increasingly diversified use requirements, a large number of complex high-rise and super high-rise building structures are emerging, which brings new and huge challenges to seismic design. In addition to the need for building structures To meet the requirements of bearing capacity calculation, it is also necessary to be able to achieve performance-based design goals. [0003] The existing building dampers have some defects in the use process: first, when the damping is small, it is impossible to achieve buffering and anti-seismic for large vibrations; second, when the damping is large, it is impossible to effectively buffer small vibrations poor. Contents of the invention [0004] The object of the present invention is to provide an anti-seismic damper to solve the p...

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Problems solved by technology

[0003] The existing building dampers have some defects in the use process: first, when the damping is small, it is impossible to achieve buffering and anti-seismic for large vibrations; second, when the damping is large, it is impossible to effectively buffer small vibrations poor

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