| 摘要 |
A retractable turnover emergency screen, a terminal and a retraction method. The retractable turnover emergency screen (13) comprises: a main board, an emergency screen switch control (14) provided on the main board, a first group of electric control magnetic suction cups (11), a second group of electric control magnetic suction cups (12), a fixing bracket apparatus (15) and an emergency screen (13). The emergency screen switch control (14) is electrically connected to the first group of electric control magnetic suction cups (11) via a circuit line; the second group of electric control magnetic suction cups (12) and the emergency screen (13) are fixed onto the fixing bracket apparatus (15); and the first group of electric control magnetic suction cups (11) are connected to the second group of electric control magnetic suction cups (12) in a disconnectable manner. When the emergency screen switch control (14) is triggered, the emergency screen switch control (14) controls the magnetizing or magnetic releasing of the first group of electric control magnetic suction cups (11) via the circuit line, so that the first group of electric control magnetic suction cups (11) and the second group of electric control magnetic suction cups (12) are attracted to or repel each other so as to drive the emergency screen (13) on the fixing bracket apparatus (15) to pop up or to retract. |
