Module articulation system

A utility module system comprising at least a first utility module and a second utility module;

• the first utility module comprising a top portion configured at a back portion thereof with at least one back locking bar and at a front portion thereof with at least one front locking bar extending parallel to said back locking bar;
• said back locking bar and said front locking bar disposed parallel to a top surface of the top portion and being spaced from the top surface;
• the second utility module comprising a base portion configured at a back portion thereof with a back bar coupling recess facing towards the back side and having a back under-bar arresting surface;
• and a front bar locking arrangement comprising a front facing barrier wall and a locking lever comprising an arresting tongue extendable in front of said barrier wall and having a front under-bar arresting surface, said locking lever displaceable between a locked position at which the front under-bar arresting surface extends at a front locking bar arresting space in front of the barrier wall, and an open position at which the locking lever is displaced to facilitate passage of a front locking bar into and from the front locking bar arresting space.