Proximity switch's automatic locking system of switch

The utility model discloses a proximity switch's automatic locking system of switch, proximity switch on installation in orbit fork, still be equipped with track switch control box, with trouble position indicator and track point machine that track switch control box is connected, proximity switch with the input of track switch control box is connected, proximity switch include central controller, with proximity sensor that central controller is connected, with the signal transmitter that central controller is connected, signal transmitter with track switch control box data connection. The utility model has the advantages of simple structure, the stability in use is good, can whether have the locomotive through switch by automated inspection to can realize shutting and the relevant signal and the control of switch as required, thereby guarantee the driving safety of locomotive when switch, the suitability is good, and the practicality is strong.