Ice maker and refrigerator having the same

A refrigerator comprising:

• a main body in which a storage chamber is formed;
• a door configured to open and close the storage chamber;
• and
• an ice maker installable in the door, wherein the ice maker comprises:
• a frame,
• an ice-making tray, which is couplable to and decouplable from the frame, configured to contain ice, and
• a water bucket, which is rotatable while mounted on the frame, configured to supply water to the ice-making tray,
• wherein the water bucket comprises:
• a rotating shaft as a rotation center about which the water bucket is rotatable while mounted on the frame, and
• a moving guide spaced apart from the rotating shaft and movable around the rotating shaft, and
• wherein the frame comprises:
• a rotating shaft coupling portion to which the rotating shaft is rotatably coupled, and
• a guide rail including an exterior surface on which the moving guide is supported, wherein the exterior surface of the guide rail is formed in a shape of a movement path of the moving guide of the water bucket to guide a rotational movement of the water bucket, and
• an ice-making cover configured to cover the ice-making tray, and a cover rotating shaft configured to be provided to couple the ice-making cover, and
• wherein the ice-making cover comprises a cover rotating shaft inserting portion formed as a hole to allow the cover rotating shaft to be movably coupled along a vertical direction of the cover rotating shaft inserting portion.