Hinge

A hinge comprising:

• a base seat including a rack that extends in a front-back direction;
• a moving platform movable on said base seat along the front-back direction;
• and
• a shaft unit including
• a rotating shaft that rotatably extends through said moving platform in a left-right direction,
• a main gear member that rotatably extends through said moving platform, that is co-movable with said moving platform along the front-back direction, and that is meshed with said rack to constitute a rack and pinion system, and
• a first bevel gear piece that is fixedly sleeved on said rotating shaft and that is meshed with said main gear member such that, during rotation of said rotating shaft relative to said moving platform, said first bevel gear piece co-rotates therewith and drives rotation of said main gear member, which is converted into linear motion of said main gear member relative to said rack by virtue of said rack and pinion system, to thereby result in collective linear motion of said shaft unit and said moving platform along the front-back direction relative to said base seat;
• wherein said base seat further includes:
• a seat body that has first and second side portions that are spaced apart from each other in the front-back direction, and a middle portion that interconnects said first and second side portions such that said middle portion and said first and second side portions substantially form a U-shape, said moving platform being disposed between said first and second side portions;
• and
• a guide rod that extends in the front-back direction through said moving platform and said first and second side portions of said seat body, said middle portion of said seat body being formed with a guide groove that extends in the front-back direction, said moving platform being formed with a guide rib that extends in the front-back direction and that is movably received in said guide groove.