| 摘要 |
PURPOSE: A locking device for a fire door is provided to prevent a fire door from being opened in case of a fire by manufacturing a slider using a stainless steel plate. CONSTITUTION: A locking device for a fire door comprises a slider(20), a locking bar(30), and an anti-releasing device. The slider is formed by bending a stainless steel plate and is horizontally moved in a bracket(10). The locking bar is coupled to the slider. The end of the anti-releasing device is coupled to a groove of the slider, and the center is coupled to the tread unit of the locking bar. The anti-releasing device prevents the locking bar from releasing. |
