F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
F16L 37/23 (2006.01) F16L 37/46 (2006.01) F17C 13/00 (2006.01)
Patent
CA 2583970
A male coupling member is provided that is selectively couplable to a first female coupling member (for 25 MPa, for example) and a second female coupling member (for 90 MPa), which handle different fluid pressures. When the male coupling member is coupled to the first female coupling member, a second O-ring that is provided for the second female coupling member is prevented from being displaced by the fluid supplied from the first female coupling member. A through-hole (70) is provided therein with an O-ring retaining member (82) that is displaceable between an advance position (Fig. 3) where the O-ring retaining member is positioned radially inside the second O-ring (78) to prevent the second O-ring (78) from being displaced by the fluid flowing from the first female coupling member (20') through the through-hole when the male coupling member is coupled to the first female coupling member (20'), and a retract position (Fig. 1) where when the male coupling member is coupled to the second female coupling member (20), the O-ring retaining member is displaced backward by the forward end of a valving element (44) of the second female coupling member, thereby allowing the outer peripheral surface of the forward end of the valving element to hermetically engage the second O-ring.
La présente invention concerne un joint de conduite comprenant un joint mâle. Le joint mâle peut être relié de manière sélective à un premier joint femelle (par exemple, pour 25 MPa) ou un second joint femelle (pour 90 MPa) qui supportent des pressions hydrostatiques différentes et sont capables d'empêcher un second ensemble de joints toriques pour le second joint femelle d'être déplacé par un fluide introduit depuis le premier joint femelle quand le joint mâle est relié au premier joint femelle. Un élément de maintien de joint torique (82) déplaçable entre une position avancée (figure 3) dans laquelle le second joint torique (78) est empêché d'être déplacé par le fluide s'écoulant du premier joint femelle à travers un trou débouchant quand l'élément de maintien de joint torique est situé sur le côté radial interne du second joint torique (78) et est relié au premier joint femelle (20') et une position en retrait (figure 1) dans laquelle l'élément de maintien de joint torique est déplacé vers l'arrière par la pointe de l'élément formant soupape (44) du second joint femelle lors de la liaison au second joint femelle (20) et la surface périphérique externe de pointe de l'élément formant soupape est mise en prise de manière étanche avec le second joint torique installé dans le trou débouchant (70).
Nitto Kohki Co. Ltd.
Riches Mckenzie & Herbert Llp
LandOfFree
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