The utility model provides a car locking mechanism only need push the fore shaft with the bicycle bayonet lock, then the top pushes away the connecting rod, makes the rotatory locking bayonet lock of clip hook, simultaneously the gag lever post position of blocking the stopper to play fine lock car effect, when unblanking, electro -magnet work, pulling eccentric slide block under arc -shaped concave opening's effect, drives the gag lever post, thereby unblanks, and whole process is simple and convenient quick, and people also need not overmanyly to worry about. Be suitable for various crowds.