Hand-held tail box of electric motor car

The utility model discloses a hand-held tail box of an electric motor car. The electric motor car comprises a base fixed on the rear portion of the electric motor car, and the tail box arranged on the base. The tail box is formed by a box body and a box cover, the box body is hinged to the box cover, an opening is arranged on the box body, and a first locking block is movably arranged in the opening; the first locking block is provided with a resetting device, and a second locking block matched with the first locking block is fixedly arranged in the box cover; the box body is provided with a lock cylinder, and a locking piece driven by the lock cylinder is arranged in the box body in a rotatable mode; one end of the locking piece is provided with a check block used for limiting the first locking block to move, the other end of the locking piece is provided with a lock hook, and a lock column matched with the lock hook is arranged on the base. A first lock is formed through coordination between the first locki