How to adjust the internal structure of the double clip pneumatic ball valve cylinder if it is not properly closed? When the interference force passes through the center of gravity of the equipment, and the direction is vertical, as long as the elastic support (valve pad) is arranged symmetrically according to the center of gravity, so that the stress of the elastic support arrangement is equal. When the frequency of the interference force is greater than the natural frequency of the isolation system composed of the equipment and the elastic support arrangement, the environment around the equipment will obtain good isolation effect