The earthquake-proof distribution panel including nonlinear type earthquake-proof spring

摘要

The present invention relates to an earthquake-proof distribution board including a nonlinear earthquake-proof spring. A central spring primarily relieves an impact when the ground is vertically vibrated by an earthquake or an external cause. A flexible bar secondarily absorbs the impact. And the flexible bar and the central spring are elastically bent and a tension spring elastically holds an upper plate coupled to be integrated with the distribution board at the same time when the ground is horizontally and diagonally vibrated. Therefore, the vibration transferred to the distribution board is relieved, and the distribution board is prevented from being fallen by being leaned in any one direction.