Shaft blocking plate, base structure and hydraulic support

The utility model relates to the technical field of hydraulic supports, and provides a shaft blocking plate, a base structure and a hydraulic support, the shaft blocking plate is in a disc shape and comprises a first surface, a second surface and a side wall face, the first surface and the second surface are oppositely arranged, the side wall face is connected with the first surface and the second surface, and a stress releasing groove is formed in the side wall face. The stress releasing groove penetrates through the first surface and the second surface, the axis of the shaft blocking plate penetrates through the stress releasing groove, and the side wall face is used for being connected with the inner wall of a mounting hole in the hydraulic support. According to the technical scheme, the side wall face of the shaft blocking plate is connected with the inner wall of the installation hole, materials are saved, cost is reduced, occupied space can be reduced, and interference with other components is avoided.