Impeller

The utility model relates to an impeller which comprises an impeller body and a pump shell body, the impeller body is of a closed structure, seven blades are evenly distributed in an annular mode, theinlet edge of each blade is provided with a rounding structure, and the impeller is turned anticlockwise when viewed inwards from a suction inlet of the impeller body. The section of the water outletdrainage port of the pump shell body is D-shaped, the section of the water outlet of the pump shell body is O-shaped, and four screw holes are formed in the outer side of the pump shell body and usedfor installing the end cover to seal the whole pump shell body. The impeller has the characteristics of high hydraulic efficiency, low hydraulic noise and good manufacturability; the energy consumption of the small clean water centrifugal pump can be effectively reduced, and the comfort of the pump is improved. 本实用新型是一种叶轮，包括叶轮本体和泵壳本体，叶轮本体是封闭式结构，其叶片数量为7片并环形均布，各叶片的进口边具有移圆结构，从叶轮本体的吸入口向内观看，叶轮为逆时针转向；泵壳本体，其出水引流口的截面呈"D"字形，而其出水口的截