Licker-in tubular shaft with height convenient to adjust

The utility model relates to the technical field of carding machine equipment, in particular to a licker-in tubular shaft convenient for height adjustment, which is characterized in that a space adjusting mechanism is arranged in a fixed strip shell, and a sliding opening is formed in the upper side of the fixed strip shell; the two ends of the distance adjusting mechanism penetrate through the sliding openings, extend upwards and are fixedly connected with two rectangular frames which are vertically and symmetrically arranged correspondingly, lifting adjusting mechanisms are arranged on the upper sides of the two rectangular frames correspondingly, and one end of each lifting adjusting mechanism penetrates through the corresponding rectangular frame and extends into the corresponding rectangular frame and is fixedly connected with a licker-in pipe shaft part. Two symmetrically-arranged positioning mechanisms are arranged on the inner walls of the two opposite sides in the rectangular frame correspondingly, a