Directional movable caster wheel

A truckle can move directionally, comprising wheels, wheel racks and a rotating shaft. The wheel can be installed on the wheel rack by rotating. The rotating shaft is installed vertically with bottom connected with the wheel rack. A braking piece and a directional piece are installed on the rotating shaft. The braking piece locates above the wheel and can slide upward and downward. The braking piece can be installed on the rotating shaft by rotating. The braking piece is assembled on the wheel rack that can slide upward and downward while can't rotate. A primary spring that can push the braking piece upward is arranged under the braking piece. The directional piece locates above the braking piece. The directional piece is installed on the rotating shaft that can slide upward and downward while can't rotate. Teeth that can mesh each other are arranged on the braking piece and directional piece face by face. A braking arm that can slide upward and downward is arranged on the rotating shaft. The bottom of the braking arm is connected with the directional piece. The braking arm is provided with a cam gear that can push the braking arm downward and a secondary spring that can push the braking arm upward. The truckle of the utility model can not only move freely, brake conveniently, but also move directionally, thus the truckle can be operated conveniently.