Transmission device

A transmission device, comprising:

• a base body;
• and
• a plurality of driving modules disposed in the base body, wherein each of the driving modules includes:
• a first transmission set including a slide rail and a slide block movably disposed on the slide rail, wherein the slide block is fixed on an inner surface of the base body, such that the slide rail reciprocates along a straight line relative to the slide block;
• a linking member fixed on the slide rail, wherein the linking member includes a slide shaft;
• a second transmission set including a screw rod and a nut movably disposed on the screw rod, wherein the nut is fixed on the slide rail;
• a third transmission set including a worm rod and a worm gear that mesh with each other, wherein the worm gear is connected to one end of the screw rod;
• a gear set connected to the worm rod;
• and
• a driving motor including a driving shaft, wherein the driving shaft is connected to the gear set, and the driving shaft extends along a first direction;
• wherein the driving motor is used to provide power to drive the driving shaft, the driving shaft drives the gear set, the third transmission set, the second transmission set, and the first transmission set, such that the slide shaft moves along a second direction which is perpendicular to the first direction.