Telescopic link and possess adjustable folding table of this telescopic link

The utility model relates to a telescopic link and possess adjustable folding table of this telescopic link, this telescopic link include first movable rod, second movable rod and are fixed in the positioning seat on the first movable rod, be provided with the guide way that runs through on this positioning seat, the second movable rod passes this guide way can be at this guide way internalization, this second movable rod is gone up the interval along length direction and is provided with and is no less than two locating holes, is equipped with in this positioning seat fixed spring and fixed pin that should the locating hole, and fixed pin can pass the locating hole under fixed spring's effect, realized the fixed of second movable rod, still install movable button spare on this positioning seat, should set up by a button relatively fixed pin, press down this button spare, make the fixed pin of this button spare contact and make and to withdraw from with release second movable rod by the locating hole by fixed