This is a parametric "turn and snap" mechanism for bottles or other linkages.
It can be used as an “originality” closure for bottles.
It could also be used for one time assembly of two parts without glue or screws.
Can be opened and closed multiple times but the “snap-feeling” wears out (depending on the material) (I used PLA-CF)
In the picture the bottle is "semi closed" if you turn it further ("close arrows" aligned) it snaps in place.
The Fusion360 file has parameters (in german / with english comments) to change the dimensions and behaviour of the system.
The author hasn't provided the model origin yet.