Novel shield door electronic lock

The utility model provides a novel shield door electronic lock, includes casing, travel switch, loose axle and locking striking plate. Set firmly a base plate on this casing, the inboard of this base plate has set firmly a copper sheathing, travel switch installs inside the casing, and the touching piece is installed to one side of this travel switch, the loose axle is established in one side of touching, and this loose axle is worn to locate in the copper sheathing and can be followed the direction of height activity of casing, and lower extreme pin joint that the loose axle exposes the casing outward has a gyro wheel, and one side that the upper end of loose axle is close to touching is equipped with first inclined plane, the locking striking plate sets firmly on the sliding door of subway, and the casing outside is located to the locking striking plate, and one side that the locking striking plate is close to the casing is equipped with the second inclined plane. The utility model discloses a second inclined plane of locking striking plate promotes the gyro wheel upward movement when sliding door closes, make first inclined plane roof pressure touching, and area of contact is great like this, moreover, during the copper sheathing is worn to locate by the loose axle, frictional force that reducible loose axle received when moving about from top to bottom to prevent that the loose axle card is dead.