CH664611A5 - CONNECTION FITTING FOR SMOOTH PIPES WITH THREADED CONNECTIONS OF HYDRAULIC APPLIANCES AND PIPES. - Google Patents
CONNECTION FITTING FOR SMOOTH PIPES WITH THREADED CONNECTIONS OF HYDRAULIC APPLIANCES AND PIPES. Download PDFInfo
- Publication number
- CH664611A5 CH664611A5 CH2833/85A CH283385A CH664611A5 CH 664611 A5 CH664611 A5 CH 664611A5 CH 2833/85 A CH2833/85 A CH 2833/85A CH 283385 A CH283385 A CH 283385A CH 664611 A5 CH664611 A5 CH 664611A5
- Authority
- CH
- Switzerland
- Prior art keywords
- connection
- ring
- threaded
- ring nut
- sealing body
- Prior art date
Links
- IHPYMWDTONKSCO-UHFFFAOYSA-N 2,2'-piperazine-1,4-diylbisethanesulfonic acid Chemical compound OS(=O)(=O)CCN1CCN(CCS(O)(=O)=O)CC1 IHPYMWDTONKSCO-UHFFFAOYSA-N 0.000 title 1
- 239000007990 PIPES buffer Substances 0.000 title 1
- 238000007789 sealing Methods 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 6
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000000465 moulding 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/061—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends a pressure ring being arranged between the clamping ring and the threaded member or the connecting member
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Joints With Pressure Members (AREA)
- Branch Pipes, Bends, And The Like (AREA)
- Joints With Sleeves (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Description
DESCRIZIONE DESCRIPTION
Il collegamento di tubazioni lisce ad organi di attacco filettati, presenti su tubi, apparecchi idraulici, pneumatici e simili può essere realizzato con molti tipi di raccordi, che svolgono la funzione di assicurare la tenuta idraulica del giunto e di mantenere meccanicamente in sede l'estremità del tubo, collegato a detto attacco filettato. The connection of smooth pipes to threaded connection elements, present on pipes, hydraulic, pneumatic and similar devices, can be made with many types of fittings, which perform the function of ensuring the hydraulic seal of the joint and of mechanically keeping the end in place of the tube, connected to said threaded connection.
Una forma conveniente di realizzazione di tale raccordo è descritta nella domanda per modello industriale di Utilità No. 21325 B/80 depositata in Italia il 28/3/1980. A convenient form of embodiment of this fitting is described in the application for industrial model of Utility No. 21325 B / 80 filed in Italy on 28/03/1980.
Tale raccordo tuttavia richiede la presenza di più elementi di tenuta e di parti di serraggio accoppiantisi tra loro, con complesso montaggio e presentando più superfici di tenuta. However, this fitting requires the presence of several sealing elements and tightening parts that fit together, with complex assembly and having multiple sealing surfaces.
È pertanto compito del presente trovato proporre un raccordo migliorato, che risulti di rapido montaggio, di efficace tenuta e di costo limitato rispetto ai raccordi fino ad ora noti. It is therefore an object of the present invention to propose an improved fitting which results in quick assembly, effective sealing and limited cost with respect to the fittings known hitherto.
Tale risultato è ottenuto, secondo il trovato, da un raccordo per il collegamento a tenuta di tubi lisci ad attacchi filettati di apparecchi idraulici e tubi che comprende una ghiera filettata ad un estremo, avvitabile sull'attacco filettato, ed un corpo di tenuta anulare, serrabile, mediante la ghiera filettata avvitata sull'attacco, in senso radiale contro la superficie esterna del tubo su cui il raccordo è montato ed in senso assiale contro il bordo terminale dell'attacco, il corpo di tenuta possedendo una porzione esterna in materiale elastomerico ed un'anima metallica interna strettamente solidali tra loro, delle quali la porzione esterna si estende ad un estremo oltre il termine dell'anima interna e presenta una superfìcie conica convergente verso lo stesso estremo, esternamente al tubo, mentre all'opposta estremo l'anima interna presenta diametro inferiore a quello del tubo per il quale il raccordo è previsto e la porzione esterna presenta in tale zona un tratto di maggiore spessore, atto a poggiare contro il bordo terminale dell'attacco filettato, l'anima interna presentando, alla sua estremità terminante prima della estremità della porzione esterna, una porzione svasata con superficie terminale conica contrapposta a quella della porzione esterna. This result is obtained, according to the invention, by a fitting for the tight connection of smooth pipes to threaded connections of hydraulic devices and pipes which includes a threaded ring nut at one end, which can be screwed onto the threaded connection, and an annular sealing body, lockable, by means of the threaded ring screwed on the connection, in a radial direction against the external surface of the pipe on which the fitting is mounted and in an axial direction against the terminal edge of the connection, the sealing body possessing an external portion in elastomeric material and an internal metal core tightly joined to each other, of which the external portion extends to one end beyond the end of the internal core and has a conical surface converging towards the same end, externally to the tube, while on the opposite extreme the soul internal has a diameter smaller than that of the pipe for which the fitting is provided and the external portion has a greater thickness in this area sore, suitable for resting against the end edge of the threaded connection, the internal core having, at its end terminating before the end of the external portion, a flared portion with a conical terminal surface opposite to that of the external portion.
Nel raccordo secondo una forma d'esecuzione del trovato la ghiera presenta, all'estremo non filettato, un anello avente superficie interna conica atta ad accoppiarsi con la superficie conica della parte terminale della porzione esterna del corpo di tenuta. In the fitting according to an embodiment of the invention, the ring nut has, at the non-threaded end, a ring having a conical internal surface suitable for coupling with the conical surface of the end part of the external portion of the sealing body.
Preferibilmente la porzione esterna del corpo di tenuta può presentare, nella sua parte terminale, estesa oltre il termine dell'anima metallica interna, rilievi anulari sulla sua superficie interna per la tenuta contro la superficie del tubo. Preferably, the external portion of the sealing body can have, in its terminal part, extended beyond the end of the internal metal core, annular protrusions on its internal surface for sealing against the surface of the tube.
L'anello a superficie conica della ghiera presenta nella sua zona di minor diametro, una gola di scarico atta a consentire la deformazione del corpo di tenuta; onde consentire il montaggio, in relazione al diametro del filetto dell'attacco e al diametro esterno del corpo di tenuta, l'anello della ghiera può essere collegata alla rimanente parte della ghiera stessa mediante filettatura, convenientemente sinistrorsa, onde impedirne l'allentamento durante il serraggio del raccordo. The ring with a conical surface of the ring nut has, in its area of smaller diameter, a discharge throat designed to allow deformation of the sealing body; in order to allow assembly, in relation to the thread diameter of the attachment and the external diameter of the sealing body, the ring of the ring nut can be connected to the remaining part of the ring nut by means of a thread, conveniently left-handed, in order to prevent its loosening during tightening of the fitting.
Maggiori dettagli potranno essere rilevati dalla descrizione della figura allegata, che mostra una forma d'esecuzione del raccordo in sezione longitudinale. Further details can be found in the description of the attached figure, which shows an embodiment of the fitting in longitudinal section.
Come è mostrato in figura, il raccordo secondo il trovato consente il collegamento dell'estremità di un tubo 1 con un bocchello o attacco filettato 2 di un apparecchio idraulico, tubo o simili. As shown in the figure, the fitting according to the invention allows the connection of the end of a tube 1 with a nozzle or threaded connection 2 of a hydraulic device, tube or the like.
Il raccordo è costituito da una ghiera filettata 3, avvitabile ad un estremo sull'attacco filettato 2 e serrabile con l'ausilio della sua porzione 4 a facce piane, che porta al suo estremo opposto un anello 5, avente la superficie conica 6, con diametro minore posto verso la parte esterna del raccordo. The fitting consists of a threaded ring nut 3, which can be screwed to one end on the threaded connection 2 and lockable with its flat face portion 4, which brings to its opposite end a ring 5, having the conical surface 6, with smaller diameter placed towards the external part of the fitting.
Convenientemente l'anello 5 è collegato all'estremo della ghiera 3 mediante una filettatura 7, con andamento sinistrorso, opposto a quello della filettatura dell'attacco 2. Conveniently the ring 5 is connected to the end of the ring nut 3 by means of a thread 7, with a left-hand course, opposite to that of the thread of the attachment 2.
Tra la superficie conica 6 dell'anello 5 ed il bordo terminale Between the conical surface 6 of the ring 5 and the end edge
8 a superficie conica dell'attacco 2 è inserito un corpo di tenuta 9, parzialmente sezionato in figura all'interno del quale è inserito il tubo 1. 8 with a conical surface of the attachment 2 a sealing body 9 is inserted, partially sectioned in the figure inside which the tube 1 is inserted.
Il corpo di tenuta 9 risulta composto da un'anima metallica interna 10, che presenta il restringimento 11 all'estremità rivolta verso l'attacco 2 avente diametro inferiore a quello del tubo 1, e la porzione svasata 12 all'estremo opposto. La porzione 12 presenta una superficie conica 13, avente inclinazione opposta alla superficie 6. The sealing body 9 is composed of an internal metal core 10, which has the shrinkage 11 at the end facing the connection 2 having a diameter smaller than that of the tube 1, and the flared portion 12 at the opposite end. The portion 12 has a conical surface 13, having an opposite inclination to the surface 6.
Solidale all'anima 10 è presente in detto corpo 9 la porzione esterna 14, in materiale elastomerico, la quale presenta un tratto di maggior spessore 15 in contatto con la superficie conica 8 dell'attacco 2 ed una parte terminale 16 compresa tra le superfici 6 e 13. The outer portion 14, made of elastomeric material, is integral with the core 10 in said body 9, which has a thicker section 15 in contact with the conical surface 8 of the attachment 2 and an end part 16 between the surfaces 6 and 13.
Sulla parete interna 17 di tale parte terminale 16 sono realizzati più rilievi anulari 18, atti ad agevolare la tenuta tra il corpo On the inner wall 17 of this end part 16 several annular protrusions 18 are made, which are adapted to facilitate the seal between the body
9 ed il tubo 1. 9 and tube 1.
Tale tenuta si realizza con il serraggio della ghiera 3 sull'attacco filettato 2, comprimendo assialmente il corpo 9, così da serrare la zona 15 contro detta superficie 8, ottenendosi quindi la tenuta tra il corpo 9 stesso e l'attacco 2, determinando inol5 This seal is achieved by tightening the ring nut 3 on the threaded connection 2, axially compressing the body 9, so as to tighten the area 15 against said surface 8, thus obtaining the seal between the body 9 itself and the connection 2, thus causing
10 10
15 15
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664 611 664 611
tre, a seguito dell'azione delle superfici 6 e 13 sulla parte 16 durante detto serraggio, una deformazione della parte 16 stessa in senso radiale, serrandola quindi fortemente contro la superficie esterna del tubo 1 e ottenendo quindi la tenuta tra lo stesso tubo 1 ed il corpo 9. three, following the action of the surfaces 6 and 13 on the part 16 during said tightening, a deformation of the part 16 itself in a radial direction, thus tightening it strongly against the external surface of the tube 1 and thus obtaining the seal between the same tube 1 and the body 9.
La realizzazione del corpo 9 in un solo pezzo, con la porzione esterna 14 in materiale elastomerico solidale all'anima metallica interna 10, ad esempio ottenuta in fase di stampaggio della porzione 14, consente una maggiore rapidità di montaggio ed inoltre la parte terminale 16 è impedita nella rotazione, in fase di serraggio, contro la parete del tubo 1, evitandosi quindi danneggiamenti alla superficie 17 e ai risalti 18, che sarebbero pregiudizievoli per la tenuta. The construction of the body 9 in one piece, with the external portion 14 made of elastomeric material integral with the internal metal core 10, for example obtained during the molding of the portion 14, allows greater assembly speed and moreover the terminal part 16 is prevented from rotating, during tightening, against the wall of the tube 1, thus avoiding damage to the surface 17 and the projections 18, which would be detrimental to the seal.
Sull'anello 5 è convenientemente prevista la presenza di una gola di scarico 19 che consente una regolare deformazione della 5 parte terminale 16 durante il serraggio della ghiera 3. On the ring 5 there is conveniently provided the presence of a discharge throat 19 which allows a regular deformation of the 5 end part 16 during the tightening of the ring nut 3.
Per consentire il montaggio, l'anello 5 è separato dal corpo della ghiera 3; tuttavia, nel caso che l'attacco filettato abbia diametro maggiore del diametro esterno del corpo di tenuta 9, io la ghiera 3 e l'anello 5 possono essere realizzati in un unico pezzo. To allow assembly, the ring 5 is separated from the body of the ring nut 3; however, if the threaded connection has a diameter greater than the external diameter of the sealing body 9, the ring nut 3 and the ring 5 can be made in a single piece.
i the
V V
1 foglio disegni 1 sheet of drawings
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8422489U IT8422489V0 (en) | 1984-07-05 | 1984-07-05 | CONNECTION FITTING FOR PIPES WITH SINGLE SEAL BODY. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH664611A5 true CH664611A5 (en) | 1988-03-15 |
Family
ID=11196957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH2833/85A CH664611A5 (en) | 1984-07-05 | 1985-07-02 | CONNECTION FITTING FOR SMOOTH PIPES WITH THREADED CONNECTIONS OF HYDRAULIC APPLIANCES AND PIPES. |
Country Status (10)
Country | Link |
---|---|
AT (1) | AT391538B (en) |
BE (1) | BE902805A (en) |
CH (1) | CH664611A5 (en) |
DE (1) | DE8519590U1 (en) |
ES (1) | ES287808Y (en) |
FR (1) | FR2567241B3 (en) |
GB (1) | GB2163227B (en) |
IT (1) | IT8422489V0 (en) |
NL (1) | NL8501919A (en) |
SE (1) | SE459276B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19723344A1 (en) * | 1997-06-04 | 1998-12-10 | Stahl Flex Spezialschlaeuche U | Screw connection or screw component for cable connections |
US6659690B1 (en) * | 2000-10-19 | 2003-12-09 | Abb Vetco Gray Inc. | Tapered stress joint configuration |
FI111985B (en) | 2000-11-09 | 2003-10-15 | Marioff Corp Oy | The pipe joint |
DE102021200469A1 (en) | 2021-01-20 | 2022-07-21 | Robert Bosch Gesellschaft mit beschränkter Haftung | Device for storing a gaseous medium |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1528749A (en) * | 1974-12-28 | 1978-10-18 | Mannin Eng Ltd | Pipe couplings |
NL177516C (en) * | 1978-09-12 | 1985-10-01 | Pidou Bv | SEALING CUFF. |
-
1984
- 1984-07-05 IT IT8422489U patent/IT8422489V0/en unknown
-
1985
- 1985-07-02 CH CH2833/85A patent/CH664611A5/en not_active IP Right Cessation
- 1985-07-03 BE BE0/215289A patent/BE902805A/en not_active IP Right Cessation
- 1985-07-03 AT AT0196885A patent/AT391538B/en not_active IP Right Cessation
- 1985-07-03 ES ES1985287808U patent/ES287808Y/en not_active Expired
- 1985-07-04 FR FR8510252A patent/FR2567241B3/en not_active Expired
- 1985-07-04 NL NL8501919A patent/NL8501919A/en not_active Application Discontinuation
- 1985-07-04 SE SE8503339A patent/SE459276B/en not_active IP Right Cessation
- 1985-07-04 GB GB08516982A patent/GB2163227B/en not_active Expired
- 1985-07-05 DE DE8519590U patent/DE8519590U1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2163227A (en) | 1986-02-19 |
SE459276B (en) | 1989-06-19 |
IT8422489V0 (en) | 1984-07-05 |
DE8519590U1 (en) | 1985-09-05 |
GB8516982D0 (en) | 1985-08-07 |
BE902805A (en) | 1985-11-04 |
SE8503339L (en) | 1986-01-06 |
ATA196885A (en) | 1990-04-15 |
FR2567241B3 (en) | 1986-06-20 |
ES287808Y (en) | 1986-09-16 |
NL8501919A (en) | 1986-02-03 |
GB2163227B (en) | 1988-01-06 |
SE8503339D0 (en) | 1985-07-04 |
ES287808U (en) | 1986-02-01 |
FR2567241A3 (en) | 1986-01-10 |
AT391538B (en) | 1990-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |