| 摘要 |
<p>A quick-connect coupling for connecting an exchangeable head (1) to a pressing device (4) has a number of balls K1 with a diameter D1, which are radially movably disposed in a ball-holding part (3) on the pressing device (4). On the exchangeable head (1) a peripheral groove (14) with a groove depth N to partially hold the balls K1 is present on a shaft part (13) with a radius R1 with the pressing device (4) and the exchangeable head (1) in a connected state. A locking ring (2) is movably attached to the ball-holding part (3) in an axial direction, the balls K1 being held radially fixed in the peripheral groove (14) by said locking ring when the pressing device and the exchangeable head are in the connected state. Furthermore, on the shaft section (13) of the exchangeable head (1) there is a further peripheral groove (15), which is disposed closer to the pressing device (4) in an axial direction, namely at a distance d from the peripheral groove (14). The further peripheral groove (15) is designed to hold further balls K2, wherein the further balls K2 are likewise disposed in a radially movable manner in the ball-holding part (3) and wherein the balls K1 and the further balls K2 are likewise spaced at distance d in the ball-holding part (3). The shaft part (13) also has in an area disposed closer to the pressing device (4) in an axial direction and likewise spaced at a distance d from the further peripheral groove (15) a form A that prevents the further balls K from moving radially when contact is made with the further balls K and thereby prevents the locking ring (2) from moving.</p> |
