Remote control type latch-up protection device of shutter door of cage

The utility model discloses a remote control type latch-up protection device of a shutter door of a cage. The device comprises cross bars slidably connected with a slide way on the cage; magnetic steel are arranged on two ends of a cross rod at the lowest end, and correspond to reed switches fixedly arranged on a vertical column; and the reed switches are connected with a wireless signal emitter fixed on the cage. The device is proper in structure and ingenious in design; and the magnetic steel are arranged on the two ends of the cross bar at the lowest end, so when the cross bars are successively closed, the magnetic steel are correspondingly connected through with the reed switches, and at this time the wireless signal emitter sends out a pot descending signal. According to the utility model, technical problems of a failure of effective closing and poor safety of a current shutter door are solved.