A suspension device making it possible to suspend items of equipment (7, 7′) under a support structure comprises an anchor bracket (2) designed to be anchored axially to the support structure, two distribution arms (9, 10, 9′, 10′) that are adjustable up and down and that are designed to carry the items of equipment (7, 7′), and that are connected to the anchor bracket (2) via pivot articulations (11, 11′), each of which is offset from the anchor bracket (2) via a stationary offsetting arm (8, 8′; 8″).