Electromagnetic lock

The utility model relates to an electromagnetic lock, particularly to an electromagnetic lock used for ferroalloy jars, which comprises a lock bolt 5, a lock end cover 6, a lock core sleeve 7, an electromagnetic coil 8 and a lock bolt insertion sleeve 2, wherein the centre of the lock core sleeve 7 has a step hole. A compression spring 9 is arranged at the bottom of the step hole. One end of the lock bolt 5 is tightly attached to the compression spring 9, and the other end form a taper shape and is exposed outside the lock core sleeve 7. The open end of the lock core sleeve 7 is provided with the lock end cover 6. The lock bolt insertion sleeve 2 is provided with a hole in the position corresponding to the lock bolt 5, and the shape and the size of the hole are matched with the lock bolt 5. The electromagnetic loop 8 which matched with the shape of the lock core sleeve 7 is sheathed outside the other end of the lock core sleeve 7, the electromagnetic loop 8 and the lock core sleeve 7 are movably matched, and the lock core sleeve 7 and the lock bolt insertion sleeve 2 are independent. The utility model has the advantages of simple structure, low using and manufacturing cost, low malfunction ratio, good anti-breakage capability, etc.