The invention provides an anti-blocking
elbow drainage
pipe, belongs to the field of drainage pipes, and solves the problem that an existing drainage
pipe is blocked by hair. The anti-blocking
elbow drainage
pipe comprises a pipe body, a circular cutter head, a filtering screen, a movable rod and a pull rod, the circular cutter head is fixed in the pipe body, the filtering screen is parallel to the cutter head and movably arranged in the pipe body, a plurality of penetrating holes are formed in the cutter head, penetrating hole walls are provided with horizontal
cutting edges, a plurality of connecting rods corresponding to the filtering screen are vertically fixed at the top surface of the filtering screen and penetrate the filtering screen, a plurality of vertical blades are radially arranged, strip-type vertical
cutting edges are arranged on the outer side of the vertical blades, the movable rod is fixed on the top surface of the filtering screen and penetrates the center of the cutter head, a nut is arranged at the top end of the movable rod, a spring is arranged between the nut and the cutter head and sleeve the movable rod, the pull rod is vertically fixed on the bottom surface of the filter screen and hermetically penetrates the pipe body, the pull rod can be pulled downwards, so that the spring is compressed, and the horizontal
cutting edges are abutted to the vertical cutting edges. The anti-blocking
elbow drainage pipe can
cut hair, and blocking is prevented.