modular exoskeleton structure for the assistance the effort of a user

The invention relates to a base module (1) for a modular exoskeletal structure for assistance in the effort of a user, comprising a hip belt (11) adapted to surround the waist of the wearer, a battery (12) and a control unit (13) attached to the waist belt (11), a first fixing part fixed to the belt (11) and adapted to cooperate with a complementary second fixing part of a hip module ( 5) for attaching the hip module (5) to the base module (1) by snap-fastening the second fastening part in the first fastening part, and a third fastener fastened to the belt (11) and adapted to cooperate with a fourth complementary fixing part of a back module for attaching the module back to the base module (1).