Patent attributes
A coupling sleeve (1) for a hydraulic coupling to a pressure medium line, for a coupling with a coupling plug (2), having a housing (3) and a sealing unit (4). The housing (3) has a flow channel (5) for a pressure medium and a coupling axis A. The sealing unit (4) includes a sleeve body (6), a pressure sleeve (7), and a valve tappet (8). The sealing unit (4) delimits part of the flow channel (5), the valve tappet (8) is held on the sleeve body (6) and is arranged in the flow channel (5). The pressure sleeve (7) encloses the valve tappet (8). The pressure sleeve (7) can be displaced along the coupling axis A and is held between a closing position, in which the flow channel (5) is locked, and an opening position, in which the flow channel (5) is unlocked. The pressure sleeve (7) is loaded by a pressure spring (10) in the closing direction. A coupling force must be applied by a user to produce a positive coupling to a coupling plug (2).
