Damping rotating shaft capable of being positioned at rotated angle

The invention relates to the technical field of hardware, and discloses a damping rotating shaft capable of being positioned at a rotated angle, the damping rotating shaft comprises a fixed seat, a supporting part is fixedly mounted at the top of the fixed seat, a hydraulic part is fixedly mounted in the middle of the supporting part, and a rotating shaft sleeve is rotatably connected to the outer side of the hydraulic part; a movable seat is fixedly mounted on the surface of the rotating shaft sleeve, and side friction parts are arranged on the two sides of the movable seat. A threaded rod is rotated through a screwdriver, hydraulic oil in a fixed shaft pipe and a flow guide hole is extruded, and the friction force between an arc-shaped plate and a rotating shaft sleeve is increased, so that two extrusion rings extrude an embedded ring, the friction force between a friction plate and the inner wall of the rotating shaft sleeve is further increased, and in addition, the friction force between the extrusion ri