Shaft rod, shaft disc assembly and fan

The shaft rod comprises a shaft rod body, an annular groove is formed in the peripheral wall of the shaft rod body, the peripheral wall of the shaft rod body is divided into a first peripheral wall and a second peripheral wall by the annular groove, a plurality of spiral flow channels are formed in the second peripheral wall, and the spiral flow channels are communicated with the first peripheral wall and the second peripheral wall. The spiral flow channels spirally extend in the axial direction of the shaft rod body, and the multiple spiral flow channels are distributed in the circumferential direction of the axis of the shaft rod body. When the shaft rod body and the shaft disc are fixedly connected through injection molding, plastic enters the spiral runner, so that the shaft rod and the plastic are tightly combined, the twisting strength is enhanced, and the shaft disc and the shaft rod are tightly connected and are not prone to loosening. 本实用新型公开了一种轴棒、轴盘组件及风机，所述轴棒包括：轴棒本体，所述轴棒本体的外周壁设有环形凹槽，所述环形凹槽将所述轴棒本体的外周