Novel steering column, column four-direction adjusting structure and column connecting structure

The novel steering column comprises a steering column sleeve and an inner shaft, and the steering column sleeve is composed of a steering column lower sleeve and a steering column upper sleeve which are coaxially arranged; the inner shaft comprises a steering column lower connecting shaft, a telescopic structure outer sleeve, a telescopic structure inner shaft and a steering column upper connecting shaft which are coaxially arranged in sequence, and a ball guide mechanism is arranged between the telescopic structure inner shaft and the telescopic structure outer sleeve; the steering column lower sleeve, the steering column lower connecting shaft and the telescopic structure outer sleeve form a fixed section; and the steering column upper sleeve, the telescopic structure inner shaft and the steering column upper connecting shaft form a movable section. According to the novel steering column, transmission is guaranteed, meanwhile, the movable section can axially move relative to the fixed section, the ball guid