Vibration damper

Abstract

The invention discloses a vibration damper which comprises an upper pressing plate and a lower bottom plate, as well as a plurality of positioning rods and a plurality of vibration damping devices arranged between the upper pressing plate and the lower bottom plate, wherein the upper end and the lower end of each positioning rod are respectively connected with the upper pressing plate and the lower bottom plate; each vibration damping device comprises an upper fixing block, a rubber block and a lower fixing block, each upper fixing block is positioned above the corresponding lower fixing block, the top end of each upper fixing block is fixedly mounted at the bottom end surface of the upper pressing plate, a first inclined plane inclined relative to the horizontal plane is arranged at the lower part of each upper fixing block, the bottom end of each lower fixing block is fixedly mounted on the top end surface of the lower bottom plate, a second inclined plane parallel to the corresponding first inclined plane is arranged at the upper part of each lower fixing block, each rubber block is arranged between the corresponding second inclined plane and first inclined plane, and the upper surface and the lower surface of each rubber block are respectively fit in with the corresponding first inclined plane and second inclined plane. According to the vibration damper, the structure is simple, the design is reasonable, and vibration damping of sensitive buildings or sensitive parts on the periphery of rail transportation is realized.

Description

technical field [0001] The invention belongs to the technical field of building vibration reduction, and more specifically relates to a vibration absorber. Background technique [0002] At present, in the field of building shock absorption and isolation technology, there has been some research and development of corresponding anti-seismic products for strong vibrations such as earthquakes. However, with the popularization of urban rail, light rail, subway and other rail transit, it not only brings convenience to the city, but also has a vibration impact on the surrounding buildings and residents of the rail line. The negative impact of weak vibration on the surrounding buildings and human body, so in the construction of rail transit, higher requirements are put forward for vibration reduction and isolation. However, for the surrounding enterprises, institutions or individuals that have built rail transit lines, it is difficult to reduce vibration from the rail transit syste...

AI Technical Summary

Problems solved by technology

[0003] For the vertical and horizontal vibrations caused by traffic loads in the prior art, there are no effective vibration reduction and isolation measures to protect surrounding sensitive buildings or sensitive parts, and the usual control measures have complex structures and high costs. From the perspective of protecting the vibrated body , to provide a connecting piece inserted between the upper structure and the lower structure, so that it has the function of reducing vertical and horizontal vibration, that is, a shock absorber that prevents the upper structure from vibrating

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