Lift structure with adjustment assistance optimized based on ergonomics and installation method thereof

A lift structure with adjustment assistance optimized based on ergonomics, comprising a top, a base, an X-shaped cross arm and a gas spring,

• wherein the X-shaped cross arm is provided between the top and the base for adjusting the height of the top relative to the base and includes a first directional arm and two second directional arms rotating around a first rotating shaft;
• wherein one end of the gas spring rotates around a second rotating shaft fixed relative to the first directional arm, and the other end rotates around a third rotating shaft fixed relative to the second directional arms, and the first, second and third rotating axes being parallel with each other;
• wherein the lift structure with adjustment assistance optimized based on ergonomics has a reference height between the highest height and the lowest height and, at the reference height, in a plane where an axis of the gas spring is located and is perpendicular to the respective rotating axes, the axis of the gas spring is tangent to a circumference centered on the first rotating shaft and having a set radius, with a tangent point being located on the second rotating shaft;
• and
• wherein the two second directional arms are provided on both sides of the first directional arm;
• and the lift structure further comprises a connecting rod to connect the two second directional arms, and wherein both ends of the gas spring are rotatably fixed relative to the first directional arm and the connecting rod, respectively.