Moving mechanism capable of positioning

The utility model discloses a positionable moving mechanism, which belongs to the technical field of aviation ground equipment and comprises a bearing part, a supporting part and a moving component. The supporting piece is fixedly arranged on the lower portion of the bearing piece. The number of the supporting pieces is not less than two. The moving assembly is fixedly arranged on the lower portion of the bearing piece. The moving assembly can be in an extended state or a shortened state; the height of the moving assembly in the extending state is larger than that of the supporting piece. The height of the moving assembly in the shortened state is smaller than that of the supporting piece. The overall height of the moving mechanism can be changed, the bearing capacity is improved by means of stretching and retracting of the moving assembly and the matching effect of the moving assembly and the supporting piece in the residing and moving states, and the service life of the wheel set is effectively prolonged. 本