Plastic product demolding structure

The utility model provides a plastic product demolding structure which comprises a push plate and a bottom plate, the push plate is lifted through an ejector rod, the bottom plate is provided with a mold core, the push plate is provided with a mold cavity in an up-down penetrating mode, the mold core corresponds to the mold cavity in position, the mold cavity comprises a first mold cavity body and a second mold cavity body which are sequentially connected up and down, and the inner diameter of the first mold cavity body is gradually reduced from top to bottom; the inner diameter of the second cavity is gradually increased from top to bottom, the inner diameter of the upper end of the second cavity is smaller than that of the lower end of the first cavity, an annular step is arranged between the upper end of the second cavity and the first cavity, a plastic product is arranged in the first cavity, the lower end of the plastic product is limited by the annular step, and the upper end of the mold core is tightly