Steering column adjusting mechanism

The utility mode provides a steering column adjusting mechanism in order to avoid the phenomena that friction, abnormal sounds and the like are generated when a steering wheel is adjusted. The steering column adjusting mechanism comprises an adjusting support, a middle support, a steering column tube, a first cam bit, a second cam bit, an adjusting handle and a connecting shaft. The middle support is fixedly connected with the steering column tube, the adjusting handle is fixedly connected with the first cam bit, a through hole is formed in the middle support, a strip-shaped through groove is formed in the adjusting support, the connecting shaft passes through the through hole in the middle support, the strip-shaped through groove in the adjusting support, the first cam bit, the second cam bit to enable the middle support, the first cam bit and the second cam bit to be connected with the adjusting support in a movable mode, and the second cam bit is arranged between the first cam bit and the adjusting support