The locking assembly includes an anchor bolt supported by it for engaging and disengaging with the mandrel core groove perpendicular to the glass core groove, when the anchor bolt is engaged with the mandrel mandrel groove, the axial axis of the member is relative to the tire The rotation of the heart, when the fission is released with the red trough of the mandrel, the rotation of the shell of the heart shaft is allowed;
It is applicable when the axis does not move axially
