| 摘要 |
An insert of the present invention is formed of an anchor nut having a screw thread formed on an inner surface; a guide member extended from an opened end of the anchor nut integrally with the anchor nut but having a hollow hole inside to penetrate the anchor nut; and a front end part inserted into the guide member. The front end part includes an insertion protrusion inserted into the hollow hole of the guide member and a body formed in a lower part of the insertion protrusion to have a relatively bigger diameter than the insertion protrusion but to have the diameter become smaller while being closer to a lower part. An awl is formed on a lower surface of the body. As a screw thread is formed on an outer surface of the anchor nut, the insert is inserted into the insulator by a tightening member combined with the screw thread. In the tightening member, there is a cap combined with the screw thread of the anchor nut, multiple press rods formed on a lower surface of the cap to protrude while being separated from each other in a circumferential direction, and an insertion groove formed on an upper surface of the cap to insert a driver. The insert of the present invention is very substantial as the anchor nut and the guide member are integrally formed. The invention also has excellent construction ability as the front end part of the guide member is easily separated after combination with a cast, and does no damage to the insulator by using the driver while inserting the insulator. |
