Upright column body capable of ascending and descending

The utility model discloses a liftable stand column body, and belongs to the field of crystal production furnaces. Comprising a base; the mounting base is located above the base, a cavity is formed in the mounting base, a first sliding groove communicating with the outside is formed in the mounting base, and the first sliding groove communicates with the cavity; the cylinder is fixedly connected to the base, and a piston rod of the cylinder is fixedly connected with the mounting seat; the two first moving plates are symmetrically installed on the first sliding groove in a sliding mode, and first clamping plates are arranged at the ends, close to each other, of the two first moving plates correspondingly; and the first two-way screw rod is rotationally mounted on the mounting seat, and the first two-way screw rod penetrates through the cavity. The lifting stand column has the beneficial effect that the lifting stand column body convenient to install is provided. 本申请公开了一种可升降的立柱本体，其属于晶体生产炉领域。包括：底座；安装座，位于底座的上方，且安