Dipper of reducing wearing back of dipper

The utility model relates to a dipper of reducing the abrasion of dipper heel, which is characterized in that the dipper is formed by the surrounding of A end and B end; the hinge point of the dipper is at O point; the shell section of the cross section of the dipper is formed by respectively connecting a straight line segment FK, a circular arc FE, a circular arc ED, a circular arc DH and a straight line segment HG. A xy rectangular coordinate system established by the formed shape taking the O point as the original point is determined by the mathematical formula. The advantages are that the dipper of reducing the abrasion of the dipper heel has the golden section proportional relation; the dipper rear section is increased through reducing the dipper reel section; therefore, the dipper capacity is kept, and simultaneously the abrasion of the dipper heel section is reduced; when the dipper of reducing the abrasion of dipper heel rotates the dipper to dig in the digging occasion, the dipper shell and the digging materials make the sliding frictional movement; in order to reduce the abrasion to the minimum while in the high efficient digging work, the design of the configuration of the shell can sufficiently avoid the excessive friction generated by the impinging of the shell with the digging materials and the accumulating in the dipper.