This event will also serve as a measure of how strong China actually is. Venezuela is very important strategically for them, they can't let it slide unless they're weak.
Surely, they won't go as far as direct US confrontation, but if they don't make Venezuela into a death trap for any US soldier being stationed there, one can draw the conclusion that China isn't as strong as many make them (including me, I confess).
But it wouldn't be that surprising if Venezuela turns out being a death trap for any US soldier being stationed there...