A coupling arrangement

摘要

A coupling arrangement (10) for fluid coupling a worktool (3) to a machine (1) comprising at least one coupler assembly (24) slideably mounted in a cavity (16) for coupling a machine fluid circuit and a work tool fluid circuit, the coupler assembly (24) partitioning the cavity (16) to form a chamber (26); a diversion path (52,54) connecting the machine fluid circuit to the chamber (26); and a check valve (56) positioned in the diversion path (52,54) for flow of fluid from the machine fluid circuit to the chamber (26) to generate a force on the coupler assembly (24) for maintaining the fluid coupling.