Structural classification of fast joint

Both ends of the opening and closing
Do not link: when the mother's ring moved to the other end, stainless stainless steel hydraulic fittings bead automatic roll out, the operation force sub body due to maternal and child body together the valve spring force the valve closed and disconnected, their progeny and parent, instant block fluid flow. Link: when body is inserted into the population, ring back to the original position under the action of a spring, a steel ball rolling lock sub body tightly connected, and parent and progeny promote each other and open the valve, fluid flow, the O ring can completely block the leakage of fluid.
With two open ends
Do not link: when the mother's ring is pushed to the other end, the steel ball automatic roll out, therefore, the sub body is removed; because the child body and parent are no valves, fluid flowing outward. Link: when body is inserted into the maternal, force the spring ring is pushed to the previous location to the steel ball lock, fluid flow, the O type ring to prevent liquid leakage
Single channel opening and closing
Do not link: when the mother's ring moved to the other end, stainless steel metal hydraulic hose adapters automatic roll out, progeny is the valve spring counterforce spring open, the valve can automatically close to block fluid flow. Link: when body is inserted into the maternal side ring, the valve is opened lead to fluid flow, the washer is the force of the spring back to the original position, stainless steel beads will lock to ensure that the child / parent connection, the inside of the washer can completely block the leakage of fluid.