WO1997047909A1 - Joint de dilatation flexible - Google Patents
Joint de dilatation flexible Download PDFInfo
- Publication number
- WO1997047909A1 WO1997047909A1 PCT/JP1997/002019 JP9702019W WO9747909A1 WO 1997047909 A1 WO1997047909 A1 WO 1997047909A1 JP 9702019 W JP9702019 W JP 9702019W WO 9747909 A1 WO9747909 A1 WO 9747909A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- packing
- hollow spherical
- hollow
- fitted
- section
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/026—Universal and axially displaceable joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/053—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by bolts passing through flanges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
- F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
- F16L27/1275—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position by means of at least an external threaded bolt
Definitions
- the present invention relates to an expansion joint, which ensures an expansion and contraction effect in an expansion joint using a spherical surface and has excellent durability, and further, a force acts under the conditions used for a curved pipe portion.
- the aim is to provide a new mechanism that appropriately suppresses the occurrence of bending force.
- the sealing member is securely pressure-tightly sealed as described above when tightening and connecting the parts, and such tightening cannot be sufficiently obtained.
- the joint is extended by the fluid pressure flowing through the pipe, and is drawn out from the fixed part 28 as shown in FIG.
- an unnecessary bending action force is generated in the pipe body 27 as shown by the imaginary line, resulting in a deformed part 27 or a crack or break in the pipe.
- the hollow spherical portions formed at both ends of the opposed pipes are fitted inside and outside, and the opposed pipes are connected so as to be able to bend mutually, and fitted outside.
- the formed lip portion is joined to the opening end surface of the outer fitting hollow spherical portion, and the holding member attached to the opening end of the outer fitting hollow spherical portion described above is joined to the packing.
- FIG. 1 is a side view showing an example of the expansion and contraction joint according to the present invention, partially cut away, and Fig. 2 is a partial cross-sectional view showing an operation relationship of the main parts shown in Fig. 1, and Fig. 3 Is a partial sectional view showing a state in which the amount of contraction is adjusted with respect to that shown in FIG. 2,
- FIG. 4 is a partial sectional view of the present invention using an extension adapter
- FIG. 6 is a sectional view similar to FIG. 1 showing the second configuration example according to the invention
- FIG. 6 is a partial end view of FIG. 5
- FIG. 7 is a case where a joint like the present invention is used.
- 4 is an explanatory diagram showing a mode in which a bending force is generated in a pipeline by pressure in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
- a pipe 1 provided opposite to each other as shown in FIG.
- the hollow spherical portions 3, 4 are formed at the end portions of the hollow cylindrical portions 3, 4, respectively, and these hollow spherical portions 3, 4 are fitted inside and outside, so that the tubular bodies 1, 2 can be bent mutually.
- the connection itself is the same as the conventional joint mechanism for securing the flexible action described above, and the packing 5 is used between the hollow spherical portions 3 and 4 fitted inside and outside as described above.
- a specific one is adopted as such a packing 5 and assembled in a specific relationship.
- the packing 5 formed as the hollow section 6 between the open end of the hollow spherical section 4 fitted to the outside and the outer surface of the hollow spherical section 3 fitted to the inside is
- the lip portions 7 and 8 formed on both sides of the hollow section 6 as described above are fitted together with the opening end face 4a of the outer fitting hollow spherical section 4 described above. It is joined to the outer surface of the hollow spherical portion 3 and is attached to the outer surface of the packing 5 at the open end 4a of the externally fitted hollow spherical portion 4.
- the holding member 9 is joined to hold the packing 5 in a predetermined mounting state.
- the tubular body 2 having the hollow spherical portions 3 and 4 as described above can be formed into a relatively short joint structure by forming connection portions 11 and 12 such as flange portions at both ends thereof.
- connection portions 11 and 12 such as flange portions at both ends thereof.
- connection portions 11 and 12 such as flange portions at both ends thereof.
- connection portions 11 and 12 such as flange portions at both ends thereof.
- a joint composed of hollow spherical portions 3 and 4 is combined, and a pipe is inserted between these hollow spherical portions 3 and 4.
- One of the bodies 1 and 2 is used as an outer tube end 21 with an enlarged diameter, and the outer tube end 21 is accommodated in the other tube end as an inner tube end 22.
- the packing 15 formed as a hollow section 16 is received in the holding seat 13 provided at the inner end 22 of the inner pipe 22 and the outer lip 17 of the packing 15 is connected to the outer side.
- a stopper 20 for engaging and sealing with the holding seat 13 is attached to the inner tube end 21 by an attachment means 19. It is provided so that it can be removed and the packing # 5 can be replaced.
- the structure shown in Fig. 1 accommodates appropriate expansion and contraction within the range of the distance between the stopper 20 and the holding seat 13 at the inner and outer tube ends 2 and 22 and furthermore,
- the hollow spherical portions 3, 4 and 3, 4 provided on both sides of the outer tube ends 2 1, 2 2 can obtain appropriate flexing action, and have a large elasticity.
- the packings 5 and 15 of the present invention as described above have a structure in which even if the inner tube end 22 is deviated by the gap e between the holding side of the packings 5 and 15 and the sealing surface as shown in FIG.
- the packings 5 and 15 automatically follow and maintain an accurate sealing state as an automatic seal, and the empty space inside Since the internal fluid pressure acts on the sinusoidal recesses 6 and 16, the above-mentioned sealing state can be always effectively formed and maintained, so that it is not necessary to strongly compress the packings 5 and 15. Relationships can be maintained.
- the packings 5 and 15 are not strongly compressed as described above, the sagging and aging are avoided, and the durability of the entire joint mechanism is sufficiently improved.
- a sufficient expansion and contraction action can be appropriately limited in some cases, and the mode is as shown in FIG. That is, the split stopper 120 attached by the attachment means 19 can be replaced as appropriate, and by attaching a wide stopper 20 as shown in FIG. It can be a mechanism that acts and does not expand or contract, or the expansion and contraction is appropriately restricted.
- the above-described telescopic flexible joint is formed by using an intermediate fitting tube 14 having one end as an outer fitting portion 23 and the other end as an inner fitting portion 24.
- the packings 15 formed as hollow sections are received in the holding seats 25 formed on the inside and the holding seats 13 formed on the inner tube end 22 respectively, and the outer lip portions 17 of the packings 15 are received.
- a stopper 20 is provided for engaging with the packing holding seat 13 or 25 described above.
- FIGS. 5 and 6 show a second configuration according to the present invention, as described above, in which the hollow spherical portions 3 and 4 or the inner and outer tube ends 21 1 and 22 fitted to the inner and outer sides are used.
- a case is shown in which one or both of the interposed packings 5a and 15a are formed such that the recessed portions 31 are formed to face each other from both sides in cross section.
- a holding member 9 is attached to the outer hollow spherical portion 4 to hold the packing 5a or 15a.
- the relationship between the packings 5a and 15a is shown in FIG. While the pipes between the inner and outer pipe ends 2 1 and 2 2 are larger than those connected to the spherical section 3, the pipe shown in Fig. 5 shows the inner and outer pipes.
- the packing 15a interposed between the ends 21 and 22 is smaller than the packing 5a.
- the sealing surface with the open end 4a of the hollow spherical portion 4 of the packing 5 in the above-mentioned FIG. 1 is perpendicular to the spherical surface. Therefore, it is necessary to increase the sealing area (seal width) at the vertical opening end face 4a, and the outer diameter of the hollow spherical portion 4 must be increased.
- the packings 5a and 15a are compressed and deformed in the thickness direction, so that the sealing on the vertical surface to the spherical surface as described above is not required, and the diameter of the spherical portion is reduced. In the case of Figs.
- the cross-sections of the packings 5a and 15a are symmetrical, so that it is not necessary to consider the direction when assembling them. Since the packings 5a and 15a are not compressed and sealed, the assembling operation is greatly facilitated from either of them. However, in any of these packings 5a and 15a, a sealing effect utilizing a change in pressure such as internal pressure is obtained in the same manner as in FIGS. Since it is installed on both sides, it forms an automatic seal that effectively follows internal and external pressure fluctuations, and can always maintain a favorable seal relationship under conditions that facilitate assembly operations as described above. There is a characteristic that the lit is obtained both inside and outside the pipeline.
- Fig. 1 shows that when a tensile load acts on the joint in the pipe axis direction, As a result, the holding member 9 supporting the packing is pulled out in the direction of the tensile force, and the sealing performance between the packing 5 and the holding member 9 is reduced.
- the one shown in Fig. 5 has the advantage that the same sealability can be ensured even under the above-mentioned tensile force.
- the expansion and contraction action and the bending action can be obtained in a free state.
- the hollow spherical portions formed at the ends of the opposed pipes are fitted inside and outside, and the pipes are connected so as to be able to bend mutually.
- a packing in which a concave portion is formed from the side surface in cross section between the open end of the hollow spherical portion fitted to the outside and the outer surface of the hollow spherical portion fitted to the inside is added.
- the lip formed on at least one side of the recessed portion as described above is joined to the opening end face of the outer fitting hollow spherical portion, and the outer fitting cavity described above is attached to the packing.
- the fluid pressure flowing in the pipe acts on the hollow part of the packing to form an effective sealing state, and therefore the packing is strongly pressed. Without sealing and increase the service life of the packing Flexibility, flexibility ensured appropriately with that.
- the packing By attaching the holding member attached to the open end of the outer fitting hollow spherical portion to the outer surface of the packing as described above, the packing is properly applied to the outer surface of the hollow spherical portion fitted inside in a proper state.
- Sectionally A packing having a concave portion formed from the side surface is formed as a hollow cross section, and the lip portions formed on both sides of the hollow concave portion are fitted inside the open end face of the hollow spherical portion fitted outside.
- a packing formed by opposing concave portions from both sides in cross section is interposed between the open end of the hollow spherical portion fitted to the outside and the external surface of the hollow spherical portion fitted to the inside, Even if a tensile load is applied in the axial direction of the pipe connected by joining the holding member attached to the open end of the outer fitting hollow spherical part described above to the packing side, packing is performed. Note that the holding member supporting the 'is pulled out in the direction of the tensile force, so that a stable sealing property can be ensured even during such a tensile force.
- a plurality of the above-described telescopic flexible joints are connected in series, and one of the ends of the opposing pipes in these telescopic flexible joints is an expanded outer pipe end, and the other pipe end is an inner pipe.
- the outer tube is housed as a body end, and a packing formed as a hollow cavity in a holding seat provided at the inner tube end is received, and an outer lip portion of the packing is attached to an inner surface of the outer tube end.
- the telescopic flexible joint having the above-described configuration is connected to an intermediate fitting tube having one end as an outer fitting portion and the other end as an inner fitting portion, and is formed on the inner fitting portion. Packings each having a hollow cross section are received in the holding seats, and the outer rip portion of the packing is joined to the inner surface of the outer fitting portion, and the outer fitting portion is locked to the packing holding seat described above.
- an accurate sealing state can be formed without strongly compressing the packing, and therefore, a smooth flexing action or stretching action can be realized and the durability of the packing can be sufficiently improved.
- by effectively controlling the amount of expansion and contraction it is possible to prevent the generation of an undesired bending action force in the pipe line, and to maintain a stable sealing action even under the condition of the pulling force action in the pipe axis direction. It has the effect of demonstrating proper flexibility and expansion / contraction c
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97927368A EP0913615A4 (en) | 1996-06-11 | 1997-06-11 | FLEXIBLE STRETCH CONNECTION |
US09/194,774 US6273476B1 (en) | 1996-06-11 | 1997-06-11 | Flexible expansion joint |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8/170691 | 1996-06-11 | ||
JP17069196 | 1996-06-11 | ||
JP8/339119 | 1996-12-05 | ||
JP8339119A JPH1061853A (ja) | 1996-06-11 | 1996-12-05 | 伸縮可撓継手 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1997047909A1 true WO1997047909A1 (fr) | 1997-12-18 |
WO1997047909A8 WO1997047909A8 (fr) | 1999-05-27 |
Family
ID=26493616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/002019 WO1997047909A1 (fr) | 1996-06-11 | 1997-06-11 | Joint de dilatation flexible |
Country Status (5)
Country | Link |
---|---|
US (1) | US6273476B1 (ja) |
EP (1) | EP0913615A4 (ja) |
JP (1) | JPH1061853A (ja) |
CN (1) | CN1086024C (ja) |
WO (1) | WO1997047909A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003343777A (ja) * | 2002-05-30 | 2003-12-03 | Ben:Kk | 免震用管装置 |
JP2006105302A (ja) * | 2004-10-06 | 2006-04-20 | Victaulic Co Of Japan Ltd | 伸縮可撓継手 |
US7784835B1 (en) | 2006-12-05 | 2010-08-31 | Keays Steven J | Pipe connecting member |
US8480133B2 (en) * | 2008-07-17 | 2013-07-09 | Parker-Hannifin Corporation | Pressure balanced transfer tube assembly with first and second inner housings that move telescopically |
US8616080B2 (en) * | 2009-02-23 | 2013-12-31 | Parker-Hannifin Corporation | Shuttle stop force limiter |
ITPS20120019A1 (it) * | 2012-09-05 | 2014-03-06 | Bernardi Dario | "condotta deformabile per fluidi" |
KR101318774B1 (ko) * | 2013-02-28 | 2013-10-16 | 신진정공 주식회사 | 신축가동관 |
EA039170B1 (ru) | 2015-12-21 | 2021-12-14 | МЭТЕРС ГИДРАУЛИКС ТЕКНОЛОДЖИС ПиТиУай ЭлТэДэ | Гидравлическая машина, характеризующаяся наличием кольца со скошенной кромкой |
US10774966B2 (en) * | 2016-07-22 | 2020-09-15 | Steel Safe Fluid Power Pty Ltd | Hydraulic joint |
CN110382822B (zh) | 2017-03-06 | 2022-04-12 | 马瑟斯液压技术有限公司 | 包括具有启动马达功能的液压机械的具有台阶式辊叶片和流体动力系统的液压机械 |
CN108131523A (zh) * | 2017-12-30 | 2018-06-08 | 江苏恒丰波纹管有限公司 | 带有密封装置的三维球形补偿器 |
FR3092893B1 (fr) * | 2019-02-20 | 2021-08-27 | Avon Polymeres France | Dispositif de liaison articulée de deux composants tubulaires. |
CN111765306B (zh) * | 2020-06-23 | 2021-08-31 | 眉山中车制动科技股份有限公司 | 一种铁路车辆制动系统用柔性接头 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5994687U (ja) * | 1982-12-16 | 1984-06-27 | 大同金属工業株式会社 | 管継手 |
JPS647275B2 (ja) * | 1981-04-18 | 1989-02-08 | Suiken Kk | |
JPH0393679U (ja) * | 1990-01-10 | 1991-09-25 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR729162A (fr) * | 1931-12-31 | 1932-07-19 | Westinghouse Freins | Perfectionnements aux accouplements métalliques flexibles |
GB469840A (en) * | 1936-03-16 | 1937-08-04 | W H Dorman And Company Ltd | Improvements in or relating to ball and socket joints |
US2209239A (en) * | 1938-03-15 | 1940-07-23 | Sterzenbach Ralph | Flexible metal pipe |
US2381426A (en) * | 1942-11-18 | 1945-08-07 | Solar Aircraft Co | Flexible exhaust line joint |
US2815973A (en) * | 1955-07-05 | 1957-12-10 | Chicksan Company | Dynamic seal |
DE1811156A1 (de) * | 1968-11-27 | 1970-06-11 | Kessler & Co Tech Chem Gmbh | Raeumlich beweglicher Laengenausgleicher fuer Rohrleitungen |
US3515414A (en) * | 1968-12-16 | 1970-06-02 | Interspace Corp | Flexible sectional pipe lines |
US3754779A (en) * | 1970-09-04 | 1973-08-28 | J Peress | Flexible joints |
US3951418A (en) * | 1974-01-21 | 1976-04-20 | W. S. Shamban & Co. | Moving captive seal construction usable under high temperature and cryogenic conditions |
SU679767A1 (ru) * | 1978-02-20 | 1979-08-15 | Предприятие П/Я А-7976 | Шарнирное соединение трубопроводов |
JPS6329985Y2 (ja) * | 1979-10-26 | 1988-08-11 | ||
JPH024311Y2 (ja) * | 1984-09-28 | 1990-01-31 | ||
DE3603721C2 (de) * | 1985-08-20 | 1994-11-17 | Smc Kk | Kupplung für Mehrfachdurchlaßleitung |
US4640533A (en) * | 1985-10-04 | 1987-02-03 | Construction Forms, Inc. | Adjustable pipe extender for high pressure lines carrying abrasive materials |
JPH0240385Y2 (ja) * | 1986-02-14 | 1990-10-29 | ||
JPH0393679A (ja) | 1989-09-04 | 1991-04-18 | Koomitsukusu:Kk | 耐熱塗布材及び耐火・耐熱複合材並びにその製造法 |
US5323860A (en) * | 1992-12-02 | 1994-06-28 | Dril-Quip, Inc. | Apparatus for connecting a diverter assembly to a blowout preventer stack |
JP3415985B2 (ja) * | 1996-03-21 | 2003-06-09 | 矢野技研株式会社 | 伸縮管継手 |
US5740839A (en) * | 1997-03-25 | 1998-04-21 | Kuo; Hsien-Jen | Flexible extension conduit |
-
1996
- 1996-12-05 JP JP8339119A patent/JPH1061853A/ja active Pending
-
1997
- 1997-06-11 CN CN97196989A patent/CN1086024C/zh not_active Expired - Lifetime
- 1997-06-11 WO PCT/JP1997/002019 patent/WO1997047909A1/ja active IP Right Grant
- 1997-06-11 US US09/194,774 patent/US6273476B1/en not_active Expired - Lifetime
- 1997-06-11 EP EP97927368A patent/EP0913615A4/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS647275B2 (ja) * | 1981-04-18 | 1989-02-08 | Suiken Kk | |
JPS5994687U (ja) * | 1982-12-16 | 1984-06-27 | 大同金属工業株式会社 | 管継手 |
JPH0393679U (ja) * | 1990-01-10 | 1991-09-25 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0913615A4 * |
Also Published As
Publication number | Publication date |
---|---|
JPH1061853A (ja) | 1998-03-06 |
EP0913615A1 (en) | 1999-05-06 |
US6273476B1 (en) | 2001-08-14 |
CN1086024C (zh) | 2002-06-05 |
EP0913615A4 (en) | 1999-08-25 |
WO1997047909A8 (fr) | 1999-05-27 |
CN1226958A (zh) | 1999-08-25 |
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