Patent ID: 8567438

Claim:
A quick coupling comprising a first element and a second element that can be separably coupled, wherein the first element includes a connector for connecting to a user interface, an external sleeve having helicoidal grooves and seats, and a first valved coupling for a first pressure line, wherein the second element includes a hooking ring nut, a plurality of internal pins, a compression spring, a second valved coupling for a second pressure line, and a connector, wherein the plurality of internal pins is radially fixed and configured to engage in the helicoidal grooves of the external sleeve for coupling the second elements with the first element, wherein said second element further comprises a safety ring nut and plurality of safety pins provided along a circumference of the safety ring nut, the safety pins being configured to axially slide with the safety ring nut, and wherein the safety pins are configured to be pushed by the hooking ring nut and the compression spring into the seats of the external sleeves.