3 Earthquake-proof assembly of three dimension seismic isolation structure and earthquake-proof cable tray system using the same

摘要

The present invention relates to a seismic assembly with a three-dimensional seismic structure and a seismic cable tray system including the same, capable of completely preventing accidents caused by vibrations. The lower end of the upper bracket connected to a vertical rod fixed to a ceiling of a building is rotatably connected with an upper end of a spring holder. A lower end of a spring holder reciprocates in a first direction of the horizontal two-dimensional directions of the cable tray by vibration of a building. The lower end of the spring holder is rotatably connected with the upper end of the lower bracket. The lower end of the lower bracket reciprocates in a second direction vertical to the first direction of the horizontal two-dimensional directions of the cable tray by vibration of a building while being connected with a support for the cable tray. The spring is accommodated in a spring holder in a structure in which the vertical distance between the lower end of the upper bracket and the upper end of the lower bracket is changed by an extension of the spring to perform three-dimensional seismic isolation of the cable tray.