An assembly of a flexible pipe and an end-fitting

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

F16L 33/01 (2006.01) F16L 33/24 (2006.01)

Patent

CA 2306497

An assembly of an end-fitting (9), having an axial extending through opening (14), with a flexible pressure pipe (1) which is of a non-bonded structure comprising a number of layers (2, 3, 4, 5, 7) including an inner carcass (2) of an interlocking structure made from metallic strips (23) forming a screwthread, an end part of which extends, in the assembled condition, into the through opening (14). The assembly comprises an annular holding groove (28) which is formed in the wall of the through opening (14), and a lock nut (15). The metallic strips (23) form a thread (24) with windings (25). When the pipe (1) is to be assembled with the end-fitting (9) the carcass (2) is exposed by initially removing the layers (3, 4, 5, 7) surrounding the carcass (2) at the end of the pipe (1), whereafter the lock nut (15) is screwed on to the end of the carcass. Finally the carcass (2) is inserted into the through opening (14) with the lock nut (15) placed in the holding groove (28) formed in the wall of the through opening (14). In some applications the lock nut (15) can also be embedded in a casting material (not shown), e.g. epoxy, for fixing the lock nut firmly in the holding groove. The joint between the carcass (2) of the flexible pressure pipe (1) and the end-fitting (9) is a simple and cheap structure and provides a greater resistance to axial tensile loads acting on the carcass (2) and against unwinding than has been known before.

L'invention concerne un ensemble formé d'un raccord d'extrémité (9) ayant un orifice traversant (14) s'étendant axialement, et d'un tuyau souple sous pression (1) qui présente une structure non liée constituée de plusieurs couches (2, 3, 4, 5, 7) comprenant une carcasse interne (2) de structure articulée se composant de bandes métalliques (23) formant un filet de vis, dont une partie d'extrémité s'étend, en position assemblée, dans l'orifice traversant (14). L'ensemble comporte une rainure de maintien annulaire (28) qui est formée dans la paroi de l'orifice traversant (14), et un écrou de blocage (15). Les bandes métalliques (23) forment un filet (24) à spires (25). Lorsqu'on doit assembler le tuyau (1) au raccord d'extrémité (9), la carcasse (2) est exposée par le retrait initial des couches (3, 4, 5, 7) entourant cette dernière (2) au niveau de l'extrémité du tuyau (1), après quoi l'écrou de blocage (15) est vissé sur l'extrémité de la carcasse. Finalement, la carcasse (2) est insérée dans l'orifice traversant (14), l'écrou de blocage étant placé dans la rainure de maintien (28) formée dans la paroi de l'orifice traversant (14). Dans certaines applications, l'écrou de blocage (15) peut également être noyé dans un métal de coulée (non représenté), comme de l'époxy, de sorte qu'il soit solidement immobilisé dans la rainure de maintien. Le joint entre la carcasse (2) du tuyau souple (1) et le raccord d'extrémité (9) est une structure simple et bon marché et confère une plus grande résistance aux efforts de traction axiaux agissant sur la carcasse (2) et au déroulement.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

An assembly of a flexible pipe and an end-fitting does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with An assembly of a flexible pipe and an end-fitting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An assembly of a flexible pipe and an end-fitting will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1766375

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.