Metamorphic mechanism type excavator capable of discharging soil

The utility model provides a metamorphic mechanism type excavator capable of discharging soil. A first slide groove of the excavator is welded to a shell. A drive crank is connected with the shell through a first pin shaft, mainly used for flexible positioning and beneficial to metamorphism of a second metamorphism rod. A third slide groove is welded to the shell. An eleventh connection rod is connected with a twelfth connection rod through a nineteenth pin shaft. The twelfth connection rod is connected with a second connection rod through a twentieth pin shaft. The twelfth connection rod is arranged in the third slide groove and can move along the third slide groove. The second connection rod is connected with a rotating block through a fifth pin shaft. The movement track of the periodic movement of the mechanism can be changed through the metamorphism of the mechanism; the mechanism can discharge soil; the functions of the excavator are improved; more importantly, the concept of changing the movement track of the periodic movement of the mechanism through the metamorphism mechanism is transferred, and the metamorphism mechanism can be more widely used.