the worm is released from the closure fig1 shows the position that the various components have come to assume when the nut screw 17 in its upward movement has struck the stops 18 the closure 29 extracted from the neck of the bottle 28 is seen placed towards the lower part of the flange 19 and with the worm 16 inside the most important aspect now is that it is fundamentally important in the end to obtain the result that the invention intended to achieve as well as that of observing the position the small pins 24 have taken in this moment they have now overcome the highest part of ribs 20 and are in a position in which in the process of the upward movement not encountering obstacles in the casing are free to rotate together with the small block 21 the pin 14 and eventually therefore also with the worm 16 at this point continuing in movement the nut screw 17 being blocked both in the rotary motion the ribs 20 as well as in axial movement the stops 18 the helicoidal screw 15 in order to be able to proceed upwards is forced into anti clockwise rotation and in that direction will make the entire axis rotate including the worm 16 the closure 29 included in the worm 16 will be in abutment at the base of the flange 19 and here will remain blocked without the possibility of rotating as a result the upward movement and the contemporary.