| 摘要 |
The present invention relates to a distribution board facility having an earthquake-proof function using a self-lock nut, characterized in that a coil spring is embedded in a self-lock nut inserted into one side surface or the other side surface of a base insulator or in a non-screw processing part of the self-lock nut applied in various fastening parts so that the enlarged state thereof can be maintained by a fixing means; and that when the fixing means is manually released by a worker's selection, the coil spring is reduced to provide the self-lock nut with the structure of allowing contacting the screw part of a bolt fastened with a nut, thereby saving a resource by allowing releasing the self-lock nut in the cases of wrongly locating an object being fastened[non-conductor (case) or conductor (power bus, division bus and attachment equipment in the case)], wrongly setting a fastening order of the bolt and the self-lock nut or releasing the fastened bolt and self-lock nut when a foreign body is introduced into the object to be fastened, and allowing the worker to conveniently and safely perform the operation in the high place work and in the small place work by allowing the worker to fasten the bolt and the self-lock nut by a one hand operation. |
