Telescopic support pillar

Patent Pending The invention relates to a remotely controlled mechanical telescopic support pillar, and belongs to the field of construction supporting. The support pillar consists of a top disc, an upper pillar body, a fine adjustment ferrule, a bolt, a lower pillar body, a pull rod, a fastening device and a base, wherein the upper pillar body and the lower pillar body are tubular; fine adjustment holes are formed on the upper pillar body and the lower pillar body at intervals of H; the fine adjustment ferrule is arranged between the upper pillar body and the lower pillar body and is provided with four groups of fine adjustment steps; the height difference of every two groups of steps is h; and the fastening device is realized according to a cam principle and achieves a labor-saving effect by matching with a lever principle.