We found a solution brings more material to space in multiple launches time, shortening the construction time of the object in space and reducing costs since second rocket will not be built. We will relaunch the same rocket. It is important. Because this will be very usefull when building a space hotel. It is a mechanism that connects space capsules. In space, as in the figure on the right the pieces align themselves and throw a rope from one to another it is based on pulling and joining together. During this merger after the parts fit each other, the main parts of this lock, which we designed inspired by some systems around us (for example tube lock system, bank vault) work in the way that the three bars, which we place on a circle at and angle of 120 degrees, lock to circle when the circles is rotated clockwise with a motor occurs as these rods enter inside, it activate a lever system that we kept embedded inside and enables it to be locked in a second way.