Vertical vibration isolation system

A vertical vibration isolation system, comprising:

• a bearing base, having an upper platform, a motion guide mechanism and a lower fundament, wherein the upper platform is configured for disposing a vibration-isolated object thereon, and the motion guide mechanism is disposed between the upper platform and the lower fundament to permit displacement of the upper platform along a vertical direction with respect to the lower fundament;
• a guide rail assembly, surrounding the bearing base and having a plurality of arc-shaped sliding channels, wherein each of the arc-shaped sliding channels extends from an inner position upwardly and laterally away from the bearing base to an outer position;
• and
• a plurality of buckling elements, each having a top portion, a bottom portion and a body portion, wherein (i) the top portions of all the buckling elements are movable with the upper platform, (ii) the bottom portions of all the buckling elements are slidably disposed at the corresponding arc-shaped sliding channels, (iii) when the upper platform moves long the vertical direction with respect to the lower fundament, the top portions of all the buckling elements are brought into movement along the vertical direction with the upper platform to cause different degrees of buckling deformation in the body portions of the buckling elements, and (iv) when the buckling elements are forced into a predetermined degree of buckling deformation, the bottom portions of all the buckling elements slide to an equilibrium position along the arc-shaped sliding channels.