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Pressurised medium line connection device, e.g. for construction machinery, uses piston with pressure maintaining valve to fix sleigh with coupling half section into locking position
Pressurised medium line connection device, e.g. for construction machinery, uses piston with pressure maintaining valve to fix sleigh with coupling half section into locking position
A piston (14) fixes a sleigh (12) for one of the coupling half- sections in the locking position and a releasable pressure maintaining valve (19) is used to maintain the pressure in the piston to keep the sleigh fixed in this position. The device comprises a fixed coupling half-section (9) and a movable coupling half-section (8) mounted on a sleigh. A piston- cylinder unit is used to move the two half-sections towards or away from each other so that they become (dis)engaged.
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