I'm looking for the common name(s) or other unique information of a 2 DoF pendulum joint that has one rod that pivots about one axis, connected to a fork that pivots about the orthogonal axis, which mounts to a fixed frame. The main rod extends all the way through the joint. Moving the rod in the x/y direction above the joint gives inverted movement on the opposite side.
Below is the best example of such a joint I could find. Here the rod appears to be in two parts (threaded rod on top, black plastic below), but they move as one piece.