Automatic fire hose decoupling from testing station fixed coupling - unlocks, by twisting, fire hose coupling by compression of lateral face twist locking direction

摘要

The fire hose, fixed by its coupling to that of a test station cleaning track can be uncoupled automatically using lugs fitted to the two couplings, together with respective lug channels for their mutual engagement. The hose coupling is uncoupled from the test station coupling by twisting its face by pressing an element on one of the hose coupling lugs (10) on its leading face in the direction used to twist-lock it home. The element (18) is run into the fixed station coupling lug channel through a bore (16) connecting to the channel. Preferably, the bore runs in the channel (12) plane to guide the externally loaded element for the lug twisting action. ADVANTAGE - Reliable automatic decoupling.