Abstract: The fixing device for the assembly and quick release of objects includes a holding element that can be fixed to one of the objects to be held together, and a retaining device that can be fixed to another one of the objects to be held together and engage the holding element. The retaining device includes a plurality of separable parts that can be held closely together around the holding element by a disengageable pre-tensioning device. The separable parts are connected to each other by an elastically deformable mechanisms which stretch to in order to draw the parts located at a distance from each other together, while the pre-tensioning device includes a link wound around the parts in order to keep them closed on the holding element, at least one end of the link being fixed to a tensioning mechanism.