Coaxial quick coupling
AssigneeFaster S.p.A.
InventorsMassimo Cardi, Mauro Rambaldini
Life of this patent
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Abstract
A coaxial quick coupling suitable for being employed in very high pressure applications in the field of emergency tools, such as shears, retractors, cylinder lifters and the like, and/or in the construction field. The coupling according to the present invention is characterized in that it has a high standardization of the internal components, different components being used both in the male coupling and in the female coupling, and in that it has a greater structural and constructional simplicity, also having few points of elastomeric sealing, which results in longer duration and greater reliability of the coupling itself.
Claims9
A coaxial quick coupling comprising a male component and a female component wherein at least two coaxial paths are identified, one for a high pressure line and one for a low pressure line, wherein each of said male and female components comprises a component for channelling the low pressure flow and an axial, metal seal valve on the high pressure line kept in place by elastic means acting between said valve and said component, the valve, the component for channelling the low pressure flow and the elastic means on the high pressure line of the male component being identical to the corresponding elements, respectively to the valve, to the component for channelling the low pressure flow and to the elastic means on the high pressure line of the female component, and in that said female component further comprises a slider which, with the coupling disconnected, is kept in closed position against a front body placed outside said axial valve by a spring thus closing the low pressure line, and which is shifted by the male component against the spring when the coupling is connected, thus opening the low pressure line.
A coaxial quick coupling according to one of the preceding claims, wherein said axial valve creates a metal sealing for the high pressure fluid in said female component, on a body outside said valve and coaxial thereto.
Dependencies are inferred from the claim text.