Wellhead mine car automatic unhooking and safety door automatic falling safety interlocking device

The utility model discloses a safety interlocking device for automatic unhooking of a wellhead mine car and automatic falling of a safety door. Including sleepers, rails are laid on the upper surfacesof the sleepers. A driving mine car is arranged on the right side of the upper end of the rail; the left side of the driving mine car is fixedly connected with a driven mine car through a connectingrod; an iron core is fixedly connected to the upper end of the outer wall of the right side of the driving mine car; the outer walls of the upper end and the lower end of the iron core are uniformly wrapped with conductive windings; a power supply device is mounted at the lower end of the iron core; the end, away from the iron core, of the conductive winding is electrically connected with a powersupply, an iron block is arranged on the right side of the iron core, the iron block and the iron core are attracted, the upper end of the iron block is fixedly connected with a hanging rod, and the top end of the hanging rod i