A paint roller with an end-surface blocking structure comprising:
- a handle;
- a mounting stem coupled to the handle and including an extension portion on which being formed a first pivot and a second pivot which extend along a first direction, and a direction perpendicular to the first direction being defined as a second direction, the first and second pivots being cylindrical structures, on an outer surface of the second pivot being formed a restricting protrusion which includes a first abutting surface and a second abutting surface, and the first and second abutting surfaces defining a restricting-protrusion angle with respect to an axis of the second pivot;
- a roller rotatably sleeved on the first pivot of the mounting stem;
- a connecting sleeve including an inserting hole and a restricting cavity in communication with the inserting hole, the restricting cavity including a first inner surface and an opposite second inner surface which define a restricting-cavity angle with respect to an axis of the inserting hole, and the restricting-cavity angle being larger than the restricting-protrusion angle, the connecting sleeve being further provided with two ears, the connecting sleeve being rotatably mounted on the mounting stem in such a manner that the second pivot is inserted in the inserting hole, and the restricting protrusion is received in the restricting cavity to allow the connecting sleeve to pivot around the second pivot and the first direction within a limited angle;
- and
- an end-surface blocking piece with a blocking portion, an arm portion and a pivoting portion sequentially connected one another, the blocking portion being a round sheet structure with an inner surface and an outer surface, the pivoting portion of the end-surface blocking piece being pivoted between the two ears of the connecting sleeve in such a manner that the inner surface of the blocking portion of the end-surface blocking piece is located toward an end surface of the roller, and the end-surface blocking piece is able to pivot around the second direction to pivot toward or away from the roller.