| 摘要 |
A coupling device (1) comprising a first half (2) and a second half (3) adapted to be connected to each other, wherein said first half (2) comprises a body (21) housing a front chamber (A) and a rear chamber (B) separated by a first element (22) and a second element (23) slidably inserted in a bore (5) provided in said first element, wherein said bore forms an inner cavity (4) in fluid communication with the front chamber and communicating with the rear chamber (B) via a first through-hole (221) provided in the first element (22), characterized in that said cavity (4) is sealed from said rear chamber (B) and in that upon connection of the coupling device (1) said second element (23) is longitudinally moved so that a second through-hole (232) provided in said second element (23) comes in fluid communication with said first through-hole (221) thereby providing a fluid communication between the two chambers (A, B) via said cavity (4). |
