| 摘要 |
A crime prevention cover for generating an alarm is provided to enable a user to recognize an invasion of a foreigner by pushing a switch installed on a lower part of an upper cover and generating the alarm. A couple of rotation holes are formed on an upper part and a lower part of a side part of a guide plate(11). A front groove having an elastic spring is formed on both ends of a front plane of the guide plate. A penetration hole is formed on a lower part of the front groove. A protrusion part which is movably inserted into a rear plane groove of the guide plate is formed on both sides of a rear plane sliding plate(12). A rack is formed on a front plane of the rear plane sliding plate in parallel. An insertion part which is movably inserted into a front groove of the guide plate is formed from an upper part of both sides to a middle part of a front sliding plate(13). An insertion groove which an upper part of the elastic spring is inserted into is formed on a lower part of the insertion part. A couple of pinions are integrally formed on a rotation axis. A head of a cover is fixed on a screw hole of a stepped unit by a screw. An upper cover(15) has a fixing unit having a fixing hole to be fixed on an upper outer wall of the guide plate by a bolt. A bending unit is integrally formed and is vertically bent. |
