Patent ID: 7783331

Claim:
A sliding mechanism, comprising: a first plate comprising a main body and two opposite guide rails, the two guide rails extending along the main body; a second plate comprising two guide grooves and slidably connected to the first plate by a slidable engagement of the guide rails in the guide grooves; a plurality of limiting structures secured on the first plate, each limiting structure being configured for limiting movement of the second plate relative to the first plate; and a linkage module positioned between the first plate and the second plate and connecting the first plate and the second plate, the linkage module including an elastic unit and a linking unit, the elastic unit comprising a plurality of parallel coil springs, each coil spring having two ends, each end secured to an opposite portion of the linking unit, the linking unit defining a hexagon enclosing the plurality of coil springs and collapsible with the sliding of the first plate relative to the second plate, simultaneously driving the coil springs and the elastic unit to longitudinally extend or retract, the retraction beginning after the maximum extension automatically driving the second plate to slide along the first plate after the second plate is manually moved a predetermined length relative to the first plate.