Automatic prism lifting device

The utility model discloses an automatic lifting device for a prism, which relates to the field of automatic lifting devices for prisms, and comprises an equipment main body, the equipment main body comprises an observation pillar, the top of the observation pillar is provided with an automatic opening and closing device, the observation pillar comprises a lower pillar body, the top of the lower pillar body is provided with an upper pillar body, and the upper pillar body is internally provided with a lifting cylinder; when a forward and reverse motor drives an adjusting screw groove to rotate in the forward direction or the reverse direction, a lifting cylinder can be subjected to ascending or descending displacement adjustment in a cylinder groove, a prism can be subjected to automatic ascending and descending adjustment according to the use condition of appearance monitoring, a limiting sliding groove and a limiting sliding block structure are matched, and the lifting cylinder subjected to ascending and des