Adjustable stage strutting arrangement

Adjustable stage strutting arrangement, including a vertical cylinder, be equipped with the 2nd vertical cylinder in the vertical cylinder, the first annular groove of several evenly distributed's cross -section for triangle -shaped is offered to a vertical cylinder medial surface, the vertical hydraulic jack of bottom fixed mounting in the vertical cylinder, the upper end of a hydraulic jack's telescopic link and the 2nd vertical cylinder's lower extreme are through vertical sleeve fixed connection, be equipped with the 2nd hydraulic jack in the sleeve, the upper end of the 2nd hydraulic jack's telescopic link is equipped with first diaphragm, fixed mounting second diaphragm in the 2nd vertical cylinder, through elasticity telescopic link fixed connection between first diaphragm and the second diaphragm, the 2nd hydraulic jack's upper end can contact the cooperation with the bottom surface of first diaphragm, the 2nd vertical cylinder offers the side several evenly distributed's through -hole, all be equippe