Is there some sort of equivalent standardized schematical (topological) diagram -such as Piping and Instrumentation Diagram, Electrical Schematics, Process Flow Diagrams, etc.- for the realm of mechanical engineering? I just need to draw the overall architecture that would describe the main components of the system and how they are connected, without going into too much detail. I have seen some diagrams but they seem to be ad hoc, as they have no fixed resemblance to each other.
Image 1: I'm looking for something in this complexity.
Maybe there is more than one way to do this but it would be nice to be more universally understood. Looked into OMG SysML but that didt at first glance seem to have what i was looking for.