A grabbing member configured to be connected to a first delivery duct for delivering a pressurised operative fluid and to couple in a releasable manner with a terminal of a second delivery duct for delivering said pressurised operative fluid, so as to define a quick-coupling safety joint , said grabbing member having a longitudinal axis (A) and comprising: - a main body , substantially tubular, coaxial to the longitudinal axis (A), apt to be connected to said first duct and to axially receive, in releasable coupling, said terminal in an advanced coupling position; - a valve element axially mounted slidingly inside the main body , held by elastic means in a closed position, in which it seals the first duct in a fluid-tight manner from the surrounding environment, and displaceable in an open position, in which it enables the outflow of said pressurised operative fluid from said first duct ; - first releasable stopping means configured to constrain the terminal in said advanced coupling position inside the main body , in which the terminal exerts a force opposite and predominant with respect to the force exerted by the elastic means , on said valve element for keeping it in the open position; and - second releasable stopping means configured to cooperate with the terminal for holding it, after the release of the first stopping means and during uncoupling of the terminal from the main body , in a retracted safety position, in which the terminal is mechanically connected to the main body and is separated from the valve element to enable the arrangement of the valve element in the closed position; wherein the second stopping means comprise at least one blocking element defining an axial abutment for the terminal in said retracted safety position, characterised in that the at least one blocking element extends along a circumferential direction around said longitudinal axis (A) so as to define an arc-shaped or half-moon shaped profile. - a main body , substantially tubular, coaxial to the longitudinal axis (A), apt to be connected to said first duct and to axially receive, in releasable coupling, said terminal in an advanced coupling position; - a valve element axially mounted slidingly inside the main body , held by elastic means in a closed position, in which it seals the first duct in a fluid-tight manner from the surrounding environment, and displaceable in an open position, in which it enables the outflow of said pressurised operative fluid from said first duct ; - first releasable stopping means configured to constrain the terminal in said advanced coupling position inside the main body , in which the terminal exerts a force opposite and predominant with respect to the force exerted by the elastic means , on said valve element for keeping it in the open position; and - second releasable stopping means configured to cooperate with the terminal for holding it, after the release of the first stopping means and during uncoupling of the terminal from the main body , in a retracted safety position, in which the terminal is mechanically connected to the main body and is separated from the valve element to enable the arrangement of the valve element in the closed position; <EOS>