The utility model provides a novel drainer. The novel drainer comprises a
rubber mat, a cup body, a sleeve and a locking cylinder, the axial section of the rubber pad is I-shaped, and the rubber pad comprises a top sealing pad, a middle sealing ring and a bottom sealing pad. The outer
diameter of the cup body is equal to the inner
diameter of the middle sealing ring, and the cup body is provided with a pressing ring. The sleeve and the locking cylinder are sequentially arranged on the periphery of the cup body in a sleeving mode, and the locking cylinder locks the sleeve to the bottom of a water outlet of a water tank through threads. According to the drainer provided by the utility model, the integrated I-shaped rubber pad is adopted, so that the situation that the two sealing pads are misplaced during
assembly can be reduced, and the situation that the cup body is mounted obliquely or wrongly is solved. After the
rubber mat is installed, the
rubber mat has the effect of pinching the water outlet of the water tank, is good in continuity and high in sealing performance, and also has the centering effect on the cup body. Besides, when the locking cylinder is screwed, the top surface of the sleeve is used for pressing the bottom sealing
gasket, so that the condition that the bottom sealing
gasket is twisted or rotated can be reduced or avoided, and the problem of sealing failure is further avoided.