Linear lifting device

A linear lifting device, comprising:

• a lifting column having a fixed end and a movable end;
• a synchronous adjusting mechanism disposed on the movable end, wherein the synchronous adjusting mechanism has a plurality of force-bearing ends, and the force-bearing ends are respectively separated from a center of the synchronous adjusting mechanism by a rotating radius and remain at a synchronous state;
• and
• a plurality of motion elements respectively connecting the force-bearing ends for generating a pushing force to push the force-bearing ends, such that the movable end is pushed by the force to move with respect to the fixed end.

A linear lifting device, comprising:

• a lifting column having a fixed end and a movable end;
• a synchronous adjusting mechanism disposed on the movable end, wherein the synchronous adjusting mechanism has a first force-bearing end and a second force-bearing end, and the first and second force-bearing ends are respectively separated from a center of the synchronous adjusting mechanism by a rotating radius and remain at a synchronous state;
• a first motion element connecting the first force-bearing end for generating a first force to push the first force-bearing end to move in a first force direction;
• and
• a second motion element connecting the second force-bearing end for generating a second force to push the second force-bearing end to move in a second force direction, wherein the lifting column has a linear extending direction, and the first motion element and the second motion element are substantially parallel to or form an angle with the linear extending direction of the lifting column.