| 摘要 |
The present invention relates to a safety crime prevention screen capable of replacing a damaged unit which hooks a separation preventing groove of a multi-stage unit in a separation preventing protrusion and moves the separation preventing groove when the multi-stage unit moves to upper and lower ends of a frame to prevent falling of a user and simultaneously perform a crime prevention function by preventing the separation of the unit from the frame. In addition, the safety crime prevention screen selects a case when the safety crime prevention screen is needed and a case when the safety crime prevention screen is not needed to facilitate the use and allows the sole replacement of a damaged unit to facilitate the maintenance. |
