The invention discloses a simple multi-angle adjustable roller
brush. The simple multi-angle adjustable roller
brush comprises a plurality of felt rolling balls, a roller
brush foldable
handle, a ballhinge, a ball hinge claw seat, a ball hinge seat gland, a roller brush
handle sliding sleeve and a roller brush
handle, wherein the ball hinge is limited between the ball hinge claw seat and the ballhinge seat gland; the ball hinge claw seat is an
elastic plastic part, the front end of the ball hinge claw seat is provided with
petal-like patches covering the outer side of the ball hinge, and a gap is reserved between every two patches; by rotating the roller brush handle, the roller brush handle extends forwards to exert an
axial force on the ball hinge claw seat, so that the ball hinge seatgland is tightly attached to the ball hinge claw seat, and each patch on the ball hinge claw seat approaches a radial inner side, thereby implementing the
seizing and locking for the ball hinge. Thesimple multi-angle adjustable roller brush provided by the invention is simple in structure, fewer in
assembly parts, low in development cost and suitable for small and medium-sized roller brushes with low requirements for the operation strength; the customization requirement of a user can be satisfied, and the efficiency of an operator can be increased by virtue of an adjusting brush head; and the roller brush can be fit to a cylindrical surface or a curved surface with a given
radian, and has good operation effect.