Safety door with lock hole protection function

The utility model relates to a safety door with a lock hole protection function, belonging to the technical field of automatic control. Nine measures provided by the utility model mutually cooperate. The safety door is realized through the improvement and the perfection of the existing patent result by the inventor. The lightning protection effect of a lightning protection stabilized voltage source is remarkable and the output voltage is stable. On the basis of an antitheft door, a reed switch and an antitheft cover are additionally arranged above a lock hole. The antitheft cover covers the lock hole and the reed switch to form a lock hole protection device. When a burglary situation occurs, timed feedback is adopted to ensure time required for transmission, a diode or door multi-code transmitting circuit sends out signals in time and an excellent telephone alarm which is transformed from a common telephone by adopting the existing patent result can inform outgoing personnel in time. Through the implementatio