| 摘要 |
PURPOSE: A safety hook device using a fastening fixing pin is provided to more efficiently block the intrusion of outsiders and restrict access of criminals. CONSTITUTION: A safety hook device comprises a stainless steel pipe(10) with a safety hook moving space(11) which is formed by assembling pipes or bars to have the width of 36cm and the length of 80cm, a safety hook which is 36cm thick and attached to a front door, and a fastening fixing pin which is installed in a space formed in the safety hook. |
