Coupling element and coupling device comprising this coupling element

A fluid coupling element, comprising:

• a body that delimits an inner pipe extending along a longitudinal axis, the inner pipe comprising a rear chamber and an intermediate chamber, in which a front orifice of the inner pipe emerges;
• a main valve translatable in the rear chamber between a closed position, in which the main valve abuts forwardly against the body, and an open position in which a main passage is arranged between the main valve and the body for the fluid communication between the rear chamber and the intermediate chamber;
• a forward valve, translatable in the intermediate chamber between a closed position and an open position of the front orifice, the forward valve being pushed back toward the closed position by a first spring;
• a safety valve, translatable between an open position of a secondary passage arranged through the main valve between the rear chamber and the intermediate chamber and a closed position of the secondary passage, in which the safety valve abuts forwardly against the main valve;
• a plunger movable in the body between a forward position and a withdrawn position, the plunger being movable relative to the safety valve along the longitudinal axis;
• the coupling element being arranged such that, during coupling with a complementary coupling element during which the forward valve is moved toward its open position of the front orifice, the forward valve comes into contact with the plunger and moves the plunger toward the withdrawn position, the plunger coming into contact with the safety valve and moving it into the open position of the secondary passage before the main valve is moved toward its open position;
• wherein the coupling element includes a second spring, arranged in the intermediate chamber bearing on the body and on a bearing part of the plunger and pushing the plunger back toward the forward position, and wherein, in the forward position of the plunger, the main valve and the safety valve are in the closed position, and the plunger abuts forwardly against the main valve or against the safety valve.