Segmentation screw rod

The utility model provides a segmentation screw rod, includes slide rail, stopper, first screw, second screw, bearing, pivot, bolt, branch, filler piece, slider, cap, slot hole, cylinder, screw rod afterbody, second screw rod, nut and screw rod head, screw rod head is last to install the pivot, and install in the bearing pivot upper end, and the bearing is installed under the screw rod afterbody, and four nuts of screw rod head's top installation, nut are located the pivot and around, are equipped with first screw on the screw rod afterbody, are equipped with four slot holes in the screw rod afterbody, and the slot hole is located first screw around, and the slot hole corresponds with the nut each other, the utility model has the advantages that: the wrong screw rod afterbody that moves can not make whole screw rod moved by wrong. 种分段螺杆，包括滑轨、限位块、第螺孔、第二螺孔、轴承、转轴、螺栓、支杆、填充片、滑块、帽盖、长孔、圆柱、螺杆尾部、第二螺杆、螺母和螺杆头部，所述螺杆头部上安装转轴，转轴上端安装在轴承内，轴承安装在螺杆尾部下，螺杆头部的顶部安装四个螺母，螺母位于转轴的四周，螺杆尾部上设有第螺孔，螺杆尾部内设有四个长孔，长孔位于第螺孔的四周，长孔与螺母相互对应；本实用新型的优点是