Normally you don't try to close the distance in tk, you either reach out your hand and try to grab your opponent or kick over there. For kicking extend one hip and contract the other one, then play around with your joints to see what gives you a decent somewhat straight kick. You can contract your knee on the first turn and then extend on the second for snapkick motion.
It doesn't really have to connect to uke, tk is more about fighting in the middle of Tori and Uke then getting over to him.
In wushu howsoever you can either rely on openers which you can find mostly on youtube or just do something and then jump into your opponents direction using the comeback poses snake posted. For moving into a direction it's important to remember your center of gravity. Use wrists and knees to jump yourself into a direction.