GB1599211A - Connection for semirigid conduits - Google Patents
Connection for semirigid conduits Download PDFInfo
- Publication number
- GB1599211A GB1599211A GB3235/78A GB323578A GB1599211A GB 1599211 A GB1599211 A GB 1599211A GB 3235/78 A GB3235/78 A GB 3235/78A GB 323578 A GB323578 A GB 323578A GB 1599211 A GB1599211 A GB 1599211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- ring
- base portion
- sealing ring
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000007789 sealing Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000008961 swelling Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/22—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
- F16L33/223—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L33/224—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts the sealing surfaces being pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts a clamping ring being arranged between the threaded member and the connecting member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints That Cut Off Fluids, And Hose Joints (AREA)
- Joints With Pressure Members (AREA)
- Joints With Sleeves (AREA)
Description
(54) CONNECTION FOR SEQMI-RIGID CONDUITS
(71) We, ETABLISSEMENTS BANIDES &
DEBEAURAIN, a Societe Anonyme organised under the laws of France, of Route d'Eu, 76747 Le Treport, France, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The invention relates to a screwed connection intended to connect a pipe made of semi-rigid material in a sealing-tight manner to another pipe of similar or different material or to a screwthreaded element.
Such connections are intended for pipes used for transporting fluids in liquid or gas form.
Various connecting devices are already known which comprise metal sleeves in which the end of the pipe is situated, the sleeve cooperating with elements which on the one hand seal the pipe relatively to the sleeve and on the other hand fix the pipe and hold it locked in the sleeve.
A connection is described in French
Patent Specification No. 2,230,924 which comprises a nose with a radial swelling with re-entrant conical edge, a deformable biconical ring and a nut for clamping the ring against the swelling of the nose.
However, such a connection has the disadvantage that it does not provide perfect sealing,-tightness when the elastic sealing element is compressed excessively and has been permanently deformed, for example as a result of creep. Perfect sealingtightness requires optimum working conditions for the sealing ring and more particularly no risk of the sealing ring becoming crushed.
We have sought to obviate this disadvantage and to provide a sealing device which ensures immovability and locking of the pipe under optimum conditions as regards reliability and security.
Accordingly, the present invention provides a screw connection for joining a pipe of semi-rigid material to another pipe or to a screwthreaded element, the connection comprising a base portion, a nut cooperating by screwing with the base portion, a sleeve arranged in use to be located in a pipe, a sealing ring arranged in use to be externally of the pipe and a deformable ring arranged in use to be externally of the pipe in the free space between the base portion and the nut, the sleeve comprises a flange adapted in use to be externally of the pipe and the deformable ring comprises a first portion which can be deformed permanently by the nut when screwing takes place, and a second portion cooperating with a shoulder of the base portion in such a manner as to define, between the flange of the sleeve and the deformable ring itself, a housing in which the sealing ring is compressed to a limited extent.
Preferably, the deformable ring comprises a rigid, second portion which is applied against the abutment of the base portion in the compressed position of the sealing ring and a deformable narrow first portion adapted to press the pipe radially under the radial pressure of the clamping nut. Furthermore, the reception sleeve comprises a flange adapted to form an annular groove for the end of the pipe, the annular groove being of sufficient depth to correct errors of perpendicularity in the end face of the pipe.
The invention is further illustrated in the accompanying drawings, wherein:
Figure 1 shows a view in longitudinal section of the assembled connection according to the invention;
Figure 2 shows a view on a larger scale of the same connection in the zone of the sealing element of the clamping ring;
Figure 3 shows a second form of embodiment of the invention.
A pipe 6 is inserted on a reception sleeve 2, the end of the pipe engaging in an annular groove formed by a circular flange 2a of the base portion of the sleeve 2. The reception sleeve 2 is itself centred in a housing la of the base portion 1 of the connection.
The external surface of the reception sleeve is serrated so as to hold the pipe 6 when the pipe is subjected to pulling forces.
The annular groove is intended also to compensate for any defect in perpendicularity relatively to the axis of the section plane of the pipe so that at all points the end of the pipe is surrounded by the sealing ring 3, otherwise the connection would not be sealing-tight.
A toroidal sealing ring 3 is arranged with the flange 2a of the sleeve in the housing la of the base portion. The inner circumference of the sealing ring bears on the pipe 6 and the external circumference on the bore of the housing la of the base portion 1. The sealing ring 3 is immovably located axially between the flange 2a and a clamping ring 4.
The clamping ring 4 abuts axially against a shoulder lb of the internal bore of the base portion 1. The distance a separating the end wall of the base portion and the shoulder lb is less than the distance b of the flange plus the axial thickness of the sealing ring 3 in the condition of rest.
The immovable abutment of the clamping ring against the shoulder ib makes it possible in this way to have a limited compression preventing any risk of the sealing ring being crushed or subjected to creep.
The clamping ring 4 is pressed in abutment by a clamping nut 5 which is screwed into an internal screwthread of the base portion 1.
The clamping ring 4 comprises a rigid portion 4a and a less thick deformable portion 4b which is wedge-shaped and is intended to press and penetrate the pipe 6 radially under the radial pressure of the clamping nut.
The end of the base portion opposite from the clamping nut can be externally or internally screwthreaded to be fixed onto a connection or a cock for example. It may also be bored out as shown in Figs. 1 and 2 in order to be brazed onto a copper tube.
To allow easier mounting of the pipe 6 on the reception sleeve 2, the serrated cylindrical surface is made very slightly conical in shape.
In the example shown in Fig. 3, the clamping ring 4 has a shoulder 4c which penetrates into the housing la and is applied directly onto the sealing ring 3. In this way when there is intense pulling action on the pipe, the toroidal sealing ring 3 remains in contact with the clamping ring even if the clamping ring detaches from the shoulder ib.
WHAT WE CLAIM IS:- 1. A screw connection for joining a pipe of semi-rigid material to another pipe or to a screwthreaded element, the connectior comprising a base portion, a nut cooperating by screwing with the base portion, a sleeve arranged in use to be located in a pipe, a sealing ring arranged in use to be externally of the pipe and a deformable ring arranged in use to be externally of the pipe in the free space between the base portion and the nut, the sleeve comprises a flange adapted in use to be externally of the pipe and the deformable ring comprises a first portion which can be deformed permanently by the nut when screwing takes place, and a second portion cooperating with a shoulder of the base portion in such a manner as to define, between the flange of the sleeve and the deformable ring itself, a housing in which the sealing ring is compressed to a limited extent.
2. A connection as claimed in Claim 1, wherein the flange of the sleeve is arranged in use to define an annular groove for the end of the pipe.
3. A connection as claimed in Claim 1 or 2, wherein the first portion of the deformable ring is deformed radially during the longitudinal displacement of the nut during screwing.
4. A screw connection substantially as herein described and with reference to the accompanying Drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (4)
1. A screw connection for joining a pipe of semi-rigid material to another pipe or to a screwthreaded element, the connectior comprising a base portion, a nut cooperating by screwing with the base portion, a sleeve arranged in use to be located in a pipe, a sealing ring arranged in use to be externally of the pipe and a deformable ring arranged in use to be externally of the pipe in the free space between the base portion and the nut, the sleeve comprises a flange adapted in use to be externally of the pipe and the deformable ring comprises a first portion which can be deformed permanently by the nut when screwing takes place, and a second portion cooperating with a shoulder of the base portion in such a manner as to define, between the flange of the sleeve and the deformable ring itself, a housing in which the sealing ring is compressed to a limited extent.
2. A connection as claimed in Claim 1, wherein the flange of the sleeve is arranged in use to define an annular groove for the end of the pipe.
3. A connection as claimed in Claim 1 or 2, wherein the first portion of the deformable ring is deformed radially during the longitudinal displacement of the nut during screwing.
4. A screw connection substantially as herein described and with reference to the accompanying Drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7702383A FR2379009A1 (en) | 1977-01-28 | 1977-01-28 | FITTING FOR SEMI-RIGID PIPES |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1599211A true GB1599211A (en) | 1981-09-30 |
Family
ID=9186007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3235/78A Expired GB1599211A (en) | 1977-01-28 | 1978-01-26 | Connection for semirigid conduits |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE863172A (en) |
| DE (1) | DE7801894U1 (en) |
| FR (1) | FR2379009A1 (en) |
| GB (1) | GB1599211A (en) |
| IT (1) | IT1092468B (en) |
| NL (1) | NL7801031A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3445208C1 (en) * | 1984-12-12 | 1985-12-19 | Reinert GmbH & Co KG, 5608 Radevormwald | Pipe connecting piece for the tension-proof connection of two pipe pieces |
| GB2278658A (en) * | 1993-06-02 | 1994-12-07 | Pegler Limited | Compression fitting |
| CN113154163A (en) * | 2021-05-07 | 2021-07-23 | 吴礼丰 | Hose hardening connecting device |
| WO2024032890A1 (en) * | 2022-08-11 | 2024-02-15 | Elysee Irrigation Ltd. | Connector, pipe system and assembling process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE8204648D0 (en) * | 1982-08-11 | 1982-08-11 | Andrzej Tomasz Iwanicki | Pipe coupling |
| ATE35042T1 (en) * | 1984-01-12 | 1988-06-15 | Vestol Sa | DEVICE FOR CONNECTING A PIPE TO A THREADED CONNECTOR. |
| DE4216707A1 (en) * | 1991-05-23 | 1992-12-10 | Siegfried Geiger | Sealing holder for flanged and non-flanged vehicle hoses - has spring grip and support element between tightening screw and flange |
-
1977
- 1977-01-28 FR FR7702383A patent/FR2379009A1/en active Granted
-
1978
- 1978-01-23 DE DE19787801894U patent/DE7801894U1/en not_active Expired
- 1978-01-23 BE BE2056631A patent/BE863172A/en not_active IP Right Cessation
- 1978-01-25 IT IT19591/78A patent/IT1092468B/en active
- 1978-01-26 GB GB3235/78A patent/GB1599211A/en not_active Expired
- 1978-01-27 NL NL7801031A patent/NL7801031A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3445208C1 (en) * | 1984-12-12 | 1985-12-19 | Reinert GmbH & Co KG, 5608 Radevormwald | Pipe connecting piece for the tension-proof connection of two pipe pieces |
| GB2278658A (en) * | 1993-06-02 | 1994-12-07 | Pegler Limited | Compression fitting |
| CN113154163A (en) * | 2021-05-07 | 2021-07-23 | 吴礼丰 | Hose hardening connecting device |
| CN113154163B (en) * | 2021-05-07 | 2023-01-17 | 宁波凯勒电气有限公司 | Hose hardening connecting device |
| WO2024032890A1 (en) * | 2022-08-11 | 2024-02-15 | Elysee Irrigation Ltd. | Connector, pipe system and assembling process |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2379009B1 (en) | 1981-12-24 |
| FR2379009A1 (en) | 1978-08-25 |
| BE863172A (en) | 1978-05-16 |
| IT7819591A0 (en) | 1978-01-25 |
| IT1092468B (en) | 1985-07-12 |
| DE7801894U1 (en) | 1978-08-17 |
| NL7801031A (en) | 1978-08-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940126 |