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 front being spaced from the top surface;
• the second utility module comprising a bottom base portion configured at a back portion thereof with a back bar coupling recess facing towards a back side and having a back under-bar arresting surface;
• and a front bar locking arrangement comprising an inclined front facing barrier wall and a locking lever comprising an arresting tongue extendable in front of said inclined front facing barrier wall and having a front under-bar arresting surface, said inclined front facing barrier wall forms an acute angle with said bottom base portion, 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 inclined front facing barrier wall, and an open position at which the locking lever is displaced to facilitate passage of said front locking bar into and from the front locking bar arresting space.