Construction system for building a module of a dwelling

A construction system for a module of a dwelling, the construction system including:

• a set of hollow profiled beams (1, 1′) of elongate rectilinear shape of type 1 and of type 2,
• in which the hollow profiled beams (1) of type 1 have a closed square section and the hollow profiled beams (1′) of type 2 have a U-shape section,
• wherein two hollow profiled beams (1) of type 1 are adapted to be assembled with two hollow profiled beams (1′) of type 2 to form a rectangular frame when the two hollow profiled beams (1, 1′) of type 1 and type 2 are assembled end to end at a right angle,
• the hollow profiled beams (1) of type 1 and the hollow profiled beams (1′) of type 2 each including at each end (5, 5′) a transverse passage opening (6, 6′) as hereinafter defined such that the transverse passage opening (6) of a hollow profiled beam (1) of type 1 comes to be nested with the transverse passage opening (6′) of a hollow profiled beam (1′) of type 2 when the two hollow profiled beams (1, 1′) of type 1 and type 2 are assembled end to end at a right angle leaving a passage opening (6, 6′) between the two ends (5, 5′) of the hollow profiled beams (1, 1′) of type 1 and type 2 so that two hollow profiled beams (1) of type 1 can be assembled with two hollow profiled beams (1′) of type 2 to form a rectangular frame,
• wherein the transverse passage opening (6) at each end of a hollow profiled beam of type 1 of square section has a central transverse passage opening through its square section,
• and wherein the transverse passage opening (6′) at each end of a hollow profiled beam of type 2 of U-shaped section has facing transverse passage openings in its facing U-shaped sections,
• all said transverse passage openings being aligned when nested to receive a body of a corner assembly element (2, 2′) for assembling a corner of the assembled rectangular frame,
• a set of corner assembly elements (2, 2′), each corner assembly element (2, 2′) including a body adapted to pass through the transverse passage opening (6, 6′) of the hollow profiled beams (1, 1′) of type 1 and 2 such that said body of the corner assembly element (2, 2′) projects out of the rectangular frame formed by the hollow profiled beams (1, 1′) of type 1 and type 2,
• a set of plates (3) that can be assembled between two hollow profiled beams (1) of type 1 between two hollow profiled beams (1′) of type 2, when the two beams (1) of type 1 and the two beams (1′) of type 2 are assembled to form a rectangular frame, and
• a set of posts (11) of hollow rectangular section the hollow ends of which come to be nested over a corner assembly element (2, 2′) of a rectangular frame formed of hollow profiled beams (1) of type 1 and of hollow profiled beams (1′) of type 2 so as to form a three-dimensional framework,
• the posts (11) include longitudinal rails or grooves (8) on two adjacent surfaces to receive other plates (3′) between the posts (11) during assembly,
• the hollow profiled beams (1, 1′) of type 1 and type 2 each including along an upper surface spaced rails or grooves (8) adapted to receive said other plates (3′),
• wherein the hollow profiled beams (1, 1′) of type 1 and of type 2, the corner assembly elements (2, 2′), the plates (3) and the posts (11) are all made of plastic material.