ITBO20090535A1 - PIPE CONNECTION DEVICE - Google Patents
PIPE CONNECTION DEVICE Download PDFInfo
- Publication number
- ITBO20090535A1 ITBO20090535A1 IT000535A ITBO20090535A ITBO20090535A1 IT BO20090535 A1 ITBO20090535 A1 IT BO20090535A1 IT 000535 A IT000535 A IT 000535A IT BO20090535 A ITBO20090535 A IT BO20090535A IT BO20090535 A1 ITBO20090535 A1 IT BO20090535A1
- Authority
- IT
- Italy
- Prior art keywords
- tube
- nipple
- internal diameter
- shaping
- diameter
- Prior art date
Links
- 210000002445 nipple Anatomy 0.000 claims description 31
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 238000007493 shaping process Methods 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 230000000295 complement effect Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 3
- 239000013013 elastic material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 230000005923 long-lasting effect Effects 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
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- 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
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/025—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
- F16L19/028—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall
- F16L19/0283—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges the collars or flanges being obtained by deformation of the pipe wall and having a bell-mouthed shape
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- 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
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0243—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member specially adapted for use with coated pipes
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- 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
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
- F16L37/14—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain
- F16L37/142—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially
- F16L37/144—Joints secured by inserting between mating surfaces an element, e.g. a piece of wire, a pin, a chain where the securing element is inserted tangentially the securing element being U-shaped
-
- 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
- F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
- F16L47/04—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with a swivel nut or collar engaging the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
Description
DISPOSITIVO DI COLLEGAMENTO PER TUBI CONNECTION DEVICE FOR PIPES
DESCRIZIONE DELL'INVENZIONE DESCRIPTION OF THE INVENTION
La presente invenzione s'inquadra nei settori dell’idraulica e della termo-tecnica e si riferisce ad un dispositivo di collegamento per tubi particolarmente adatto a condutture per i pavimenti radianti. The present invention falls within the fields of hydraulics and thermo-technology and refers to a connection device for pipes particularly suitable for ducts for radiant floors.
Il dispositivo oggetto dell’invenzione comprende la sagomatura delle estremità di tubi da collegare, in genere realizzati in rame od altro materiale malleabile e con un eventuale strato esterno sintetico di rivestimento, e comprende nippli, collari e tenute destinati a cooperare con dette sagomature per realizzare il collegamento idraulico e meccanico delle estremità dei tubi. The device object of the invention comprises the shaping of the ends of pipes to be connected, generally made of copper or other malleable material and with a possible external synthetic coating layer, and comprises nipples, collars and seals intended to cooperate with said shapings for make the hydraulic and mechanical connection of the ends of the pipes.
Le giunzioni, di tipo noto, per i tubi in genere prevedono specifici raccordi che, una volta fissati, provocano un restringimento della sezione interna riducendo la portata e creando perdite di carico sull’impianto. Known joints for pipes generally include specific fittings which, once fixed, cause a narrowing of the internal section, reducing the flow rate and creating pressure drops on the system.
Altre giunzioni note sono molto complesse da realizzare o richiedono elementi molto costosi e, comunque, anch’esse sono sovente affette da restringimento del lume. Inoltre molte delle giunzioni di tipo noto non sono in grado di assicurare la tenuta per tutto il tempo necessario e, a causa di vibrazioni, corrosioni ed usura, possono causare perdite che, particolarmente nel caso di installazioni a pavimento o inglobate nella muratura, possono avere conseguenze molto onerose. Other known junctions are very complex to make or require very expensive elements and, in any case, they too are often affected by lumen shrinkage. Furthermore, many of the known types of joints are not able to ensure the seal for as long as necessary and, due to vibrations, corrosion and wear, can cause leaks which, particularly in the case of floor installations or embedded in the masonry, may have very onerous consequences.
Per tale ragione molti installatori preferiscono calcolare in anticipo le lunghezze dei tubi che dovranno impiegare al fine di minimizzare le giunzioni. Ciò riduce i rischi di perdite ma aumenta i tempi ed i costi di installazione. For this reason many installers prefer to calculate in advance the lengths of the pipes they will have to use in order to minimize the joints. This reduces the risk of leaks but increases installation times and costs.
Uno scopo della presente invenzione à ̈ quello di proporre un dispositivo di collegamento per tubi che non riduca il lume interno dei tubi. An object of the present invention is to propose a connecting device for tubes which does not reduce the internal lumen of the tubes.
Altro scopo à ̈ di proporre un dispositivo per realizzare rapidamente e facilmente giunzioni tra tubi, anche in cantiere ed in fase di messa in opera. Another purpose is to propose a device for quickly and easily making joints between pipes, even on site and during the installation phase.
Ulteriore scopo à ̈ di proporre un dispositivo in grado di realizzare giunzioni sicure e durature. A further aim is to propose a device capable of making safe and long-lasting joints.
Altro scopo à ̈ di proporre un dispositivo particolarmente adatto per realizzare pavimenti radianti e circuiti inglobati nella muratura in genere. Another purpose is to propose a device particularly suitable for making radiant floors and circuits incorporated in the masonry in general.
Le caratteristiche dell'invenzione sono nel seguito evidenziate con particolare riferimento agli uniti disegni nei quali: The characteristics of the invention are highlighted below with particular reference to the accompanying drawings in which:
- la figura 1 illustra una vista parziale e sezionata longitudinalmente di due tubi da collegare le cui estremità sono dotate di rispettive sagomature del dispositivo di collegamento per tubi oggetto della presente invenzione; Figure 1 shows a partial longitudinally sectioned view of two pipes to be connected, the ends of which are provided with respective shapes of the connecting device for pipes object of the present invention;
- la figura 2 illustra una vista assiale di una sagomatura di figura 1; Figure 2 illustrates an axial view of a shape of Figure 1;
- la figura 3 illustra una vista parziale ed ingrandita di una sagomatura di figura 1; - la figura 4 illustra una vista assiale di un mezzo a nipplo del dispositivo di collegamento per tubi oggetto della presente invenzione; figure 3 shows a partial and enlarged view of a shape of figure 1; Figure 4 illustrates an axial view of a nipple means of the connecting device for pipes object of the present invention;
- la figura 5 illustra una vista sezionata longitudinalmente del mezzo a nipplo di figura 4; Figure 5 shows a longitudinally sectioned view of the nipple means of Figure 4;
- la figura 6 illustra una vista sezionata longitudinalmente di un mezzo a ghiera del dispositivo di collegamento per tubi oggetto della presente invenzione; Figure 6 illustrates a longitudinally sectioned view of a ring nut means of the connecting device for pipes object of the present invention;
- la figura 7 illustra una vista in sezione longitudinale ed esplosa del dispositivo di collegamento per tubi oggetto della presente invenzione in una condizione di collegamento di due tubi ed in cui alcune parti sono state omesse per meglio evidenziarne altre; Figure 7 illustrates an exploded longitudinal sectional view of the connection device for pipes object of the present invention in a condition of connection of two pipes and in which some parts have been omitted to better highlight others;
- la figura 8 illustra una vista parzialmente sezionata del dispositivo di collegamento per tubi oggetto della presente invenzione in una condizione di collegamento di due tubi; Figure 8 illustrates a partially sectioned view of the connection device for pipes object of the present invention in a condition of connection of two pipes;
- la figura 9 illustra una vista sezionata longitudinalmente di una variante preferita del mezzo a nipplo di figura 5; Figure 9 illustrates a longitudinally sectioned view of a preferred variant of the nipple means of Figure 5;
- la figura 10 illustra una vista laterale di una variante preferita del mezzo a ghiera di figura 6; Figure 10 illustrates a side view of a preferred variant of the ring means of Figure 6;
- le figure 11 e 12 illustrano viste da due diversi lati di un mezzo a cavallotto; - la figura 13 illustra una vista in sezione trasversale deli mezzi a nipplo ed a ghiera di figure 9 e 10 reciprocamente bloccati dal mezzo a cavallotto di figura 11; - Figures 11 and 12 show views from two different sides of a U-bolt means; Figure 13 shows a cross-sectional view of the nipple and ring nut means of Figures 9 and 10 mutually locked by the U-bolt means of Figure 11;
- la figura 14 illustra una vista in sezione longitudinale ed esplosa del dispositivo di collegamento per tubi comprendente le varianti di figure da 9 a 10 ed il mezzo a cavallotto di figura 11 in una condizione di collegamento di due tubi ed in cui alcune parti sono state omesse per meglio evidenziarne altre; Figure 14 illustrates an exploded longitudinal sectional view of the connecting device for pipes comprising the variants of Figures 9 to 10 and the U-bolt means of Figure 11 in a condition of connection of two pipes and in which some parts have been omitted to better highlight others;
- la figura 15 illustra una vista parzialmente sezionata del dispositivo di collegamento per tubi di figura 14 in una condizione di collegamento di due tubi; - la figura 16 illustra una vista ingrandita di un particolare di figura 15. Figure 15 illustrates a partially sectioned view of the connecting device for pipes of Figure 14 in a condition of connection of two pipes; - figure 16 shows an enlarged view of a detail of figure 15.
Con riferimento alle figure da 1 a 16, il dispositivo di collegamento per tubi 2, oggetto della presente invenzione, comprende sagomature 3 realizzate alle estremità da collegare di tali tubi 2. With reference to Figures 1 to 16, the connecting device for pipes 2, object of the present invention, comprises shapes 3 made at the ends to be connected of said pipes 2.
Ciascuna sagomatura 3 Ã ̈ realizzate in corpo unico con il rispettivo tubo 2 e presenta una porzione cilindrica 4 avente diametro interno DD superiore al diametro interno D del corrispondente tubo. Each shape 3 is made in a single body with the respective tube 2 and has a cylindrical portion 4 having an internal diameter DD greater than the internal diameter D of the corresponding tube.
Preferibilmente i tubi 2 sono a doppio strato in cui il primo strato interno à ̈ composto da un tubo preferibilmente in rame avente spessore 0,3 mm, e lo strato di rivestimento esterno à ̈ di materiale plastico isolante avente spessore 1,7 mm saldamente aderente al tubo in rame. In alternativa lo strato interno del tubo può essere in leghe di rame o altri materiali deformabili plasticamente. Preferably the pipes 2 are double-layered in which the first internal layer is composed of a preferably copper pipe having a thickness of 0.3 mm, and the external coating layer is of insulating plastic material having a thickness of 1.7 mm, firmly adhering to the copper tube. Alternatively, the inner layer of the tube can be made of copper alloys or other plastically deformable materials.
La sagomatura 3 terminale di ciascun tubo à ̈ realizza tramite una deformazione plastica e presenta tre porzioni: The 3 terminal shaping of each tube is achieved by means of a plastic deformation and has three portions:
- una prima porzione troncoconica 10 il cui lume interno ha basi minore e maggiore di diametro uguale rispettivamente al diametro interno D del corrispondente tubo 2 ed al diametro interno DD della corrispondente porzione cilindrica 4 per raccordarli, ove l’angolo solido di detta prima porzione troncoconica 10 à ̈ compreso tra circa 20° e circa 45° essendo preferibilmente di circa 30°. L’angolo di circa 30° à ̈ stato determinato per poter ottener la deformazione senza creare rotture nel tubo in rame ed anche con l’obiettivo di ridurre per quanto possibile gli sforzi necessari per ottenere la deformazione interna del diametro del tubo; - a first frusto-conical portion 10 whose internal lumen has smaller and larger bases of diameter equal respectively to the internal diameter D of the corresponding tube 2 and to the internal diameter DD of the corresponding cylindrical portion 4 to connect them, where the solid angle of said first portion truncated cone 10 is between about 20 ° and about 45 ° being preferably about 30 °. The angle of about 30 ° was determined in order to obtain the deformation without creating cracks in the copper tube and also with the aim of reducing as much as possible the efforts necessary to obtain the internal deformation of the tube diameter;
- la porzione cilindrica 4 perfettamente cilindrica ed avente una certa lunghezza per alloggiare uno speciale mezzo a nipplo recante gli elementi di tenuta; - the cylindrical portion 4 perfectly cylindrical and having a certain length to house a special nipple means carrying the sealing elements;
- una seconda porzione troncoconica 11 consistente in un breve tratto troncoconico divergente ricavato all’estremità esterna di tale porzione cilindrica 4. - a second truncated cone portion 11 consisting of a short diverging truncated cone section obtained at the external end of this cylindrical portion 4.
La seconda porzione troncoconica 11 realizza un importantissimo smusso che servirà in seguito in fase di inserimento del nipplo nel tubo per facilitare l’introduzione del nipplo stesso e per proteggere gli elementi di tenuta da eventuali danneggiamenti. Per ciascun collegamento da realizzare, il dispositivo comprende un mezzo a nipplo 5 ciascuna estremità del quale à ̈ dotata di un rispettivo mezzo ad innesto 6 di forma tubolare cilindrica ed avente diametro interno L pressoché uguale al diametro interno D del corrispondente tubo 2 e diametro esterno T uguale o leggermente inferiore al diametro interno DD della porzione cilindrica 4 della sagomatura 3 di tale tubo 2. Nella condizione operativa del dispositivo 1, tra detti mezzo ad innesto 6 e porzione cilindrica 4 della sagomatura 3 sono interposti dei mezzi di tenuta 7. The second truncated cone portion 11 creates a very important chamfer which will later be used when inserting the nipple into the pipe to facilitate the introduction of the nipple itself and to protect the sealing elements from possible damage. For each connection to be made, the device comprises a nipple means 5, each end of which is equipped with a respective coupling means 6 of cylindrical tubular shape and having an internal diameter L almost equal to the internal diameter D of the corresponding tube 2 and a diameter external T equal to or slightly less than the internal diameter DD of the cylindrical portion 4 of the shaping 3 of this tube 2. In the operating condition of the device 1, sealing means 7 are interposed between said coupling means 6 and cylindrical portion 4 of the shaping 3.
Detto dispositivo comprende inoltre, per ciascun mezzo ad innesto 6, un mezzo a ghiera 8 destinato a bloccare il corrispondente tubo 2 al mezzo a nipplo. Said device further comprises, for each coupling means 6, a ring nut means 8 intended to lock the corresponding tube 2 to the nipple means.
L’estremità libera di ciascun mezzo ad innesto 6 presenta una forma troncoconica pressoché complementare alla corrispondente prima porzione troncoconica 10 della sagomature 3 del rispettivo tubo 2. The free end of each coupling means 6 has a truncated conical shape almost complementary to the corresponding first truncated conical portion 10 of the shaping 3 of the respective tube 2.
Ciascun mezzo ad innesto 6 presenta un insieme di sedi anulari 9 ciascuna destinata ad ospitare parzialmente un rispettivo mezzo di tenuta 7 di tipo anulare, ad esempio del tipo detto O-Ring. Each coupling means 6 has a set of annular seats 9 each intended to partially house a respective sealing means 7 of the annular type, for example of the type called O-Ring.
Il mezzo a ghiera 8 à ̈ tubolare ed il suo lume ha una porzione sagomata 12 riproducente la forma esterna della sagomatura 3 del corrispondente tubo 2 e presenta una porzione di connessione 13 destinata, nella condizione operativa, a riscontrare con una porzione d’attacco 14 del corrispondente mezzo a nipplo 5. The ferrule means 8 is tubular and its lumen has a shaped portion 12 reproducing the external shape of the shape 3 of the corresponding tube 2 and has a connection portion 13 intended, in the operating condition, to meet with an attachment portion 14 of the corresponding nipple means 5.
L’estremità opposta a quella libera di ciascun mezzo ad innesto 6 del mezzo a nipplo 5 presenta la rispettiva porzione d’attacco 14 coassiale al proprio mezzo ad innesto 6. La porzione di connessione 13 di ciascun mezzo a ghiera 8 à ̈ coassiale alla rispettiva porzione sagomata 12 ed à ̈ adiacente all’estremità di maggior diametro di quest’ultima. La porzione di connessione 13 di ciascun mezzo a ghiera 8 e la corrispondente porzione d’attacco 14 del rispettivo mezzo a nipplo 5 sono dotate di rispettive e complementari filettature per il reciproco bloccaggio e per il serraggio della sagomatura 3 del rispettivo tubo 2 al mezzo ad innesto 6 del corrispondente mezzo a nipplo 5. The opposite end to the free end of each coupling means 6 of the nipple means 5 has the respective attachment portion 14 coaxial to its own coupling means 6. The connection portion 13 of each ring means 8 is coaxial to the respective shaped portion 12 and is adjacent to the extremity of greater diameter of the latter. The connection portion 13 of each ring nut means 8 and the corresponding attachment portion 14 of the respective nipple means 5 are provided with respective and complementary threads for reciprocal locking and for tightening the shape 3 of the respective tube 2 to the means coupling 6 of the corresponding nipple means 5.
Nella condizione operativa, il reciproco impegno ed avvitamento della porzione di connessione 13 di ciascun mezzo a ghiera 8 alla corrispondente porzione d’attacco 14 del rispettivo mezzo a nipplo 5 fa sì che la porzione sagomata 12 mezzo a ghiera 8, agendo sulla prima porzione troncoconica 10 della sagomatura, serri il mezzo ad innesto 6 del mezzo a nipplo 5 nella porzione cilindrica 4 della sagomatura 3. I mezzi di tenuta 7 sigillano lo spazio tra le sedi anulari 9 del mezzo ad innesto 6 e la parete interna della porzione cilindrica 4 garantendo la tenuta anche in caso di serraggio non ottimale del mezzo a ghiera 8 al mezzo a nipplo 5. In the operating condition, the mutual engagement and screwing of the connection portion 13 of each ring means 8 to the corresponding attachment portion 14 of the respective nipple means 5 causes the shaped portion 12 to be the ring means 8, acting on the first frusto-conical portion 10 of the shaping, clamp the coupling means 6 of the nipple means 5 into the cylindrical portion 4 of the shaping 3. The sealing means 7 seal the space between the annular seats 9 of the coupling means 6 and the inner wall of the cylindrical portion 4 ensuring the seal even in the event of non-optimal tightening of the ring means 8 to the nipple means 5.
Il mezzo a ghiera 8, nella condizione operativa, agisce sulla sagomatura 3 del rispettivo tubo 2, in particolare sulla corrispondente porzione cilindrica 4, per contrastarne la dilatazione e per garantire la tenuta in ogni condizione. Il mezzo a ghiera 8 può essere eventualmente realizzato in un materiale avente un basso coefficiente di dilatazione termica, ad esempio uguale od inferiore ai coefficienti dei materiali, od al coefficiente del materiale, del mezzo a nipplo 5 e del tubo 2. The ring nut means 8, in the operating condition, acts on the shaping 3 of the respective tube 2, in particular on the corresponding cylindrical portion 4, to counteract its expansion and to ensure sealing in all conditions. The ring means 8 can optionally be made of a material having a low coefficient of thermal expansion, for example equal to or lower than the coefficients of the materials, or the coefficient of the material, of the nipple means 5 and of the pipe 2.
Le figure da 9 a 16 illustrano la preferita forma di realizzazione del fissaggio del mezzo a ghiera 8 al mezzo a nipplo 5. in tale preferita forma, il dispositivo comprende, per ogni mezzo a ghiera, un mezzo a cavallotto 15 approssimativamente sagomato ad “U†e dotato di due gambe 16. Figures 9 to 16 illustrate the preferred embodiment of the fixing of the ring means 8 to the nipple means 5. In this preferred form, the device comprises, for each ring means, a U-bolt means 15 approximately shaped like a? œUâ € is equipped with two legs 16.
La porzione di connessione 13 del mezzo a ghiera 8 e la porzione d’attacco 14 del corrispondente mezzo a nipplo 5 sono di forma complementare e reciprocamente impegnabili tramite inserimento della porzione d’attacco 14 nel mezzo a ghiera 8. Il mezzo a ghiera 8 à ̈ dotato di fori trasversali passanti 17 destinati, nella condizione operativa, ad ospitare le gambe 16 del mezzo a cavallotto 15 che, in tale condizione, sporgono all’interno del porzione di connessione 13 del mezzo a ghiera 8 impegnandosi in corrispondenti mezzi a cavità 18 ricavati in detta porzione d’attacco 14 di tale mezzo a nipplo 5. The connection portion 13 of the ring means 8 and the attachment portion 14 of the corresponding nipple means 5 are complementary in shape and mutually engageable by inserting the attachment portion 14 into the ring means 8. The ring means 8 is equipped with transverse through holes 17 intended, in the operating condition, to house the legs 16 of the U-bolt means 15 which, in this condition, protrude inside the connection portion 13 of the ring means 8 engaging in corresponding means cavity 18 obtained in said attachment portion 14 of said nipple means 5.
Il mezzo a cavallotto 15 à ̈ ricavato da un elemento filiforme realizzato in materiale elastico e, ad esempio, assume una forma simile ad un chiodo ad “U†realizzato in tondini d’acciaio. In particolare le gambe 16 del mezzo a cavallotto 15 sono dritte ed unite tramite una porzione trasversale 19 e, in una condizione di disimpegno, sono reciprocamente inclinate. I fori passanti 17 sono paralleli e posti ad una reciproca distanza approssimativamente corrispondente alla lunghezza della porzione trasversale 19 che à ̈ minore del diametro delle porzioni di connessione 13 e d’attacco 14. The U-bolt 15 is obtained from a filiform element made of elastic material and, for example, assumes a shape similar to a â € œUâ € nail made of steel rods. In particular, the legs 16 of the U-bolt means 15 are straight and joined by means of a transverse portion 19 and, in a disengaged condition, are reciprocally inclined. The through holes 17 are parallel and placed at a mutual distance approximately corresponding to the length of the transverse portion 19 which is smaller than the diameter of the connection portions 13 and attachment 14.
I mezzi a cavità 18 consistono in una cavità anulare praticata nella porzione d’attacco 14 all’altezza dei fori passanti 17 nella condizione operativa ed avente diametro minimo approssimativamente uguale o minore alla minima distanza tra le gambe 16 del mezzo a cavallotto 15. The cavity means 18 consist of an annular cavity made in the attachment portion 14 at the height of the through holes 17 in the operating condition and having a minimum diameter approximately equal to or less than the minimum distance between the legs 16 of the U-bolt means 15.
In tal modo, nella condizione operativa, le gambe interferiscono sia con il mezzo a ghiera sia con il mezzo a nipplo 5 bloccandoli reciprocamente. In this way, in the operating condition, the legs interfere both with the ring nut means and with the nipple means 5, locking them reciprocally.
Tra i due fori passanti 17, la superficie in vista del mezzo a ghiera reca una scritta di avviso del mancato posizionamento del mezzo a cavallotto. Tale scritta, ad esempio “OPEN†, avvisa l’addetto dell’assenza di blocco del dispositivo e viene nascosta dal mezzo a cavallotto quando inserito nei fori passanti ai lati della scritta. Between the two through holes 17, the visible surface of the ring means bears an inscription warning of the non-positioning of the U-bolt means. This writing, for example â € œOPENâ €, warns the employee of the absence of blocking of the device and is hidden by the U-bolt when inserted into the through holes on the sides of the writing.
L’operatività di questa preferita forma di realizzazione, prevede che la sagomatura ed il mezzo a ghiera siano inseriti a fondo nel mezzo ad innesto 6 e che in questa condizione, le gambe 16 di uno dei mezzi a cavallotto 15 siano tenute parallele ed inserite nei fori trasversali passanti 17 bloccando il mezzo a ghiera 8 e quindi la sagomatura 3 ed il tubo 2 al mezzo a nipplo. La reciproca inclinazione della gambe 16 ne impedisce l’indesiderato sfilamento dai fori trasversali passanti 17. The operation of this preferred embodiment provides that the shaping and the ring means are fully inserted into the coupling means 6 and that in this condition, the legs 16 of one of the U-bolt means 15 are kept parallel and inserted in the transverse through holes 17 blocking the ring nut means 8 and therefore the shaping 3 and the tube 2 to the nipple means. The reciprocal inclination of the legs 16 prevents their unwanted slipping out of the transverse through holes 17.
Un vantaggio della presente invenzione à ̈ quello di fornire un dispositivo di collegamento per tubi che non riduca il lume interno dei tubi. An advantage of the present invention is to provide a tube connection device which does not reduce the internal lumen of the tubes.
Altro vantaggio à ̈ di fornire un dispositivo per realizzare rapidamente e facilmente giunzioni tra tubi, anche in cantiere ed in fase di messa in opera. Another advantage is to provide a device for making joints between pipes quickly and easily, even on site and during the installation phase.
Ulteriore vantaggio à ̈ di fornire un dispositivo in grado di realizzare giunzioni sicure e durature. Another advantage is to provide a device capable of making safe and long-lasting joints.
Altro vantaggio à ̈ di fornire un dispositivo particolarmente adatto per realizzare pavimenti radianti e circuiti inglobati nella muratura in genere. Another advantage is to provide a device particularly suitable for creating radiant floors and circuits incorporated in masonry in general.
Ulteriore vantaggio del dispositivo di collegamento per tubi oggetto della presente invenzione à ̈ quello di avere un diametro esterno massimo molto contenuto facilitandone l’inserimento in pavimenti ed opere murarie. A further advantage of the connection device for pipes object of the present invention is that of having a very limited maximum external diameter, facilitating its insertion in floors and masonry works.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBO2009A000535A IT1395031B1 (en) | 2009-08-06 | 2009-08-06 | PIPE CONNECTION DEVICE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITBO2009A000535A IT1395031B1 (en) | 2009-08-06 | 2009-08-06 | PIPE CONNECTION DEVICE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ITBO20090535A1 true ITBO20090535A1 (en) | 2011-02-07 |
| IT1395031B1 IT1395031B1 (en) | 2012-09-05 |
Family
ID=42079135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ITBO2009A000535A IT1395031B1 (en) | 2009-08-06 | 2009-08-06 | PIPE CONNECTION DEVICE |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1395031B1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501404A1 (en) * | 1991-02-28 | 1992-09-02 | Hewing GmbH | Connection device for plastic pipes and method for connecting a plastic pipe |
| DE4141309A1 (en) * | 1991-03-05 | 1992-09-10 | Hewing Gmbh | Pipe coupling with pipe end forced axially onto sleeve - has pre-expanded pipe end only required to further expand slightly over sleeve conical end portion during assembly |
| JPH06159574A (en) * | 1992-11-17 | 1994-06-07 | Toho Kasei Kk | Pipe joint |
| EP1022504A1 (en) * | 1999-01-25 | 2000-07-26 | J.+ R. Gunzenhauser AG | Threaded coupling for pipes, expanding device and wrenches |
| WO2005106311A1 (en) * | 2004-04-28 | 2005-11-10 | Tabuchi Co. Ltd. | Snap joint for resin pipe |
| DE102005023751A1 (en) * | 2004-07-02 | 2006-02-09 | Km Europa Metal Ag | Conduit for transporting media |
| EP2045501A1 (en) * | 2007-10-02 | 2009-04-08 | Pipelife Nederland B.V. | Connecting construction |
-
2009
- 2009-08-06 IT ITBO2009A000535A patent/IT1395031B1/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0501404A1 (en) * | 1991-02-28 | 1992-09-02 | Hewing GmbH | Connection device for plastic pipes and method for connecting a plastic pipe |
| DE4141309A1 (en) * | 1991-03-05 | 1992-09-10 | Hewing Gmbh | Pipe coupling with pipe end forced axially onto sleeve - has pre-expanded pipe end only required to further expand slightly over sleeve conical end portion during assembly |
| JPH06159574A (en) * | 1992-11-17 | 1994-06-07 | Toho Kasei Kk | Pipe joint |
| EP1022504A1 (en) * | 1999-01-25 | 2000-07-26 | J.+ R. Gunzenhauser AG | Threaded coupling for pipes, expanding device and wrenches |
| WO2005106311A1 (en) * | 2004-04-28 | 2005-11-10 | Tabuchi Co. Ltd. | Snap joint for resin pipe |
| DE102005023751A1 (en) * | 2004-07-02 | 2006-02-09 | Km Europa Metal Ag | Conduit for transporting media |
| EP2045501A1 (en) * | 2007-10-02 | 2009-04-08 | Pipelife Nederland B.V. | Connecting construction |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1395031B1 (en) | 2012-09-05 |
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