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FR2582075A1 - Securing clamp for hose connection - Google Patents

Securing clamp for hose connection Download PDF

Info

Publication number
FR2582075A1
FR2582075A1 FR8606761A FR8606761A FR2582075A1 FR 2582075 A1 FR2582075 A1 FR 2582075A1 FR 8606761 A FR8606761 A FR 8606761A FR 8606761 A FR8606761 A FR 8606761A FR 2582075 A1 FR2582075 A1 FR 2582075A1
Authority
FR
France
Prior art keywords
tube
clamping element
hose
annular part
threaded
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.)
Granted
Application number
FR8606761A
Other languages
French (fr)
Other versions
FR2582075B1 (en
Inventor
Mathias Konrad
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Walterscheid GmbH
Original Assignee
GKN Walterscheid GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GKN Walterscheid GmbH filed Critical GKN Walterscheid GmbH
Publication of FR2582075A1 publication Critical patent/FR2582075A1/en
Application granted granted Critical
Publication of FR2582075B1 publication Critical patent/FR2582075B1/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/16Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with sealing or securing means using fluid pressure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L17/00Joints with packing adapted to sealing by fluid pressure
    • F16L17/02Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/03Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips
    • F16L17/035Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket having annular axial lips the sealing rings having two lips parallel to each other
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/04Connecting 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Joints With Pressure Members (AREA)

Abstract

The end of the hose connection (1) has a sleeve (4) over which the hose is pushed. The hose (6) is gripped by the inner flange (8) of the spring clamp, while the outer flange (9) is pushed inwards by the sloping taper of the securing nut (2) threaded over the connector. The clamp is gripped in a compression fit via an outer lip (10) and provides a smooth pressure grip onto the outside of the hose. Any pull to try and release the hose causes the clip to twist and increase the grip.

Description

L'invention concerne un raccord embrochable pour tubes ou tuyaux flexibles, comprenant une pièce filetée et un écrou correspondant pour fixer une extrémité de tube ou de tuyau à la pièce filetée, dont le côté recevant le tube porte une tubulure cylindrique devant supporter le tube intérieurement, le perçage de L'écrou s'évasant coniquement vers la pièce filetée et contenant un élément de serrage conçu pour entourer le tube. The invention relates to a plug-in fitting for flexible tubes or pipes, comprising a threaded part and a corresponding nut for fixing a tube or pipe end to the threaded part, the side of which receives the tube carries a cylindrical tube which must support the tube internally. , the piercing of the nut widening conically towards the threaded part and containing a clamping element designed to surround the tube.

On connaît déjà, notamment par La demande de brevet allemand DE-OS 31 31 690, des raccords embrochables dont L'écrou présente un cône intérieur qui s'évase en direction de la pièce filetée et qui coopère avec une bague de serrage ou un autre élément de serrage du tube à embrocher, afin d'empêcher l'extrac- tion du tube ou du tuyau embroché. There are already known, in particular from German patent application DE-OS 31 31 690, plug-in connections, the nut of which has an inner cone which flares towards the threaded part and which cooperates with a clamping ring or another clamping element of the tube to be connected, in order to prevent the extraction of the tube or tube connected.

Le raccord décrit dans ce document a L'inconvénient que la bague de serrage présente des bords coupants qui entailLent le tube ou le tuyau. Il se crée ainsi L'amorce pour une rupture ultérieure du tube sous la charge. The connection described in this document has the disadvantage that the clamping ring has sharp edges which cut into the tube or the pipe. The primer is thus created for a subsequent rupture of the tube under the load.

Pour que la bague de serrage représentée dans Le document précité reste bien en place sur le tube, il faut que ses bords (coupants) soient en contact avec le tube dès L'enfoncement de celui-ci dans le raccord. La surface du tube est ainsi endommagée déjà pendant l'introduction du tube. In order for the clamping ring shown in the aforementioned document to remain in place on the tube, its edges (cutting edges) must be in contact with the tube as soon as it is pressed into the fitting. The surface of the tube is thus already damaged during the introduction of the tube.

L'exécution décrite dans le document précité demande de ce fait la prévision de bagues d'étanchéité particulières pour étancher Le raccord. The execution described in the aforementioned document therefore requires the provision of special sealing rings to seal the fitting.

L'invention vise à créer un éLément de serrage, pour un raccord embrochable du type défini au début, qui assure complètement l'établissement d'une liaison procurant à la fois l'étanchéité et le maintien, élément de serrage qui soit insensible à l'égard de vibrations de la canalisation - généralement sous pression dans laquelleilest incorporé, et qui n'endommage pas le tube ou le tuyau lors du montage. The invention aims to create a clamping element for a plug-in connector of the type defined at the start, which completely ensures the establishment of a connection providing both sealing and holding, a clamping element which is insensitive to Regarding vibrations of the pipe - generally under pressure in which it is incorporated, and which does not damage the tube or the pipe during assembly.

A cet effet, selon L'invention : a) L'éLément de serrage possède lXelasticité du caoutchouc et
est constitué d'une première partie annulaire destinée à
recevoir le tube et d'une deuxième partie annulaire qui part
de L'extrémité axiale côté tube de la première partie annu
laire, s'élargit coniquement vers la pièce filetée et porte
à son autre extrémité axiale un rebord orienté radialement, b) la première partie annulaire possède un diamètre intérieur
qui est plus petit que le diamètre extérieur du tube ou du
tuyau.
To this end, according to the invention: a) the clamping element has the elasticity of the rubber and
consists of a first annular part intended for
receive the tube and a second annular part which leaves
of the axial end tube side of the first annu
laire, widens conically towards the threaded part and carries
at its other axial end a radially oriented rim, b) the first annular part has an internal diameter
which is smaller than the outside diameter of the tube or
pipe.

La réalisation selon L'invention de L'élément de serrage a l'avantage que grâce à sa conformation à la façon d'un soufflet roulant, il est pratiquement insensible aux contraintes provenant de vibrations puisque cet élément n'est pas soumis à des frottements en cas de vibrations de la canalisation. The embodiment according to the invention of the clamping element has the advantage that thanks to its conformation in the manner of a rolling bellows, it is practically insensitive to the stresses originating from vibrations since this element is not subjected to friction. in case of vibrations of the pipe.

L'élément de serrage selon l'invention permet en outre l'emploi du raccord pour des tubes ou des tuyaux compris dans une large zone de tolérance. The clamping element according to the invention also allows the use of the connector for tubes or pipes included in a wide tolerance zone.

Un avantage particulier de la réalisation de L'élément de serrage seLon l'invention est que cet élément, à c & é de son aptitude à serrer te tube ou le tuyau avec force, il est capable d'assurer l'étanchéité vis-à-vis du tube ou du tuyau et L'étanchéité de l'écrou vis-à-vis de la pièce filetée. A particular advantage of the realization of the clamping element according to the invention is that this element, in addition to its ability to tighten the tube or the pipe with force, it is capable of ensuring tightness against -vis the tube or pipe and the tightness of the nut vis-à-vis the threaded part.

IL n'est pas nécessaire de prévoir d'autres éléments d'étanchéité, tels que des joints toriques ou anaLogues. It is not necessary to provide other sealing elements, such as O-rings or the like.

Une autre caractéristique de L'invention prévoit que
La première partie annulaire de l'élément de serrage forme un cône qui se rétrécit dans te sens de t'ernbrochage. La zone de tolérance pour le tube ou le tuyau à raccorder est ainsi considérabLement étendue.
Another characteristic of the invention provides that
The first annular part of the clamping element forms a cone which narrows in the direction of the pinning. The tolerance zone for the tube or hose to be connected is thus considerably extended.

Une autre caractéristique avantageuse de L'invention prévoit que la première partie annulaire est intérieurement pourvue de rainures circulaires dont la profondeur diminue dans le sens de l'embrochage. Cette conformation améliore l'adhérance de la première partie annulaire de L'éLément de serrage au tube ou au tuyau dans le sens de l'extraction. Another advantageous characteristic of the invention provides that the first annular part is internally provided with circular grooves whose depth decreases in the direction of racking. This conformation improves the adhesion of the first annular part of the clamping element to the tube or to the pipe in the direction of extraction.

e
D'autres caractéristiques et avantages de l'invention ressortiront plus clairement de la description qui -va suivre d'un exemple de réalisation non limitatif, ainsi que du dessin annexé, sur Lequel :
- la figure 1 est une coupe axiale partielle d'un raccord embrochable selon L'invention ;
- la figure 2 est une coupe axiale à plus grande échelle d'un élément de serrage utilisable dans un tel raccord ; et
- la figure 3 est une coupe axiale partielle à plus grande échelle encore d'un élément de serrage selon une variante de réalisation.
e
Other characteristics and advantages of the invention will emerge more clearly from the description which will follow of a nonlimiting exemplary embodiment, as well as from the appended drawing, in which:
- Figure 1 is a partial axial section of a plug connector according to the invention;
- Figure 2 is an axial section on a larger scale of a clamping element usable in such a fitting; and
- Figure 3 is a partial axial section on a larger scale of a clamping element according to an alternative embodiment.

Le raccord représenté sur La figure 1 comporte une pièce filetée 1 sur laquelle est vissé un écrou 2. Ce dernier présente un cône intérieur 7 dans lequel est disposé un élément de serrage 3. Si nécessaire, on peut prévoir une bague d'étanchéité 5 pour empêcher l'entrée de poussières du côté de l'écrou 2 qui est éloigné de la pièce filetée 1. The connector shown in Figure 1 has a threaded part 1 on which is screwed a nut 2. The latter has an inner cone 7 in which is disposed a clamping element 3. If necessary, a sealing ring 5 can be provided for prevent the entry of dust on the side of the nut 2 which is distant from the threaded part 1.

Le raccord embrochable peut être livré à L'état assemblé, c'est-à-dire avec l'écrou 2 vissé sur la pièce 1 et avec maintien de la bague de serrage 3 par l'écrou, au moyen du rebord radial 10 - serré entre la pièce 1 et L'écrou 2 - de La bague de serrage 3. The plug-in connector can be delivered in the assembled state, that is to say with the nut 2 screwed onto the part 1 and with the clamping ring 3 being maintained by the nut, by means of the radial flange 10 - tightened between part 1 and nut 2 - of the clamping ring 3.

Le raccord complet peut être vissé par un autre filetage Il de la pièce 1 dans un appareil å installer, de sorte qu'il suffit d'y enfoncer le tube ou Le tuyau flexible 6 pour réaliser le raccordement. La tubulure-cylindrique 4 empêche l'écrasement du tube ou du tuyau 6 lorsque celui-ci est fabriqué d'un matériau très éLastique.The complete fitting can be screwed by another thread II from part 1 into a device to be installed, so that it suffices to insert the tube or flexible hose 6 to make the connection. The cylindrical tubing 4 prevents crushing of the tube or hose 6 when the latter is made of a very elastic material.

La figure 2 représente l'éLément de serrage 3 en coupe. Figure 2 shows the clamping element 3 in section.

On voit que cet élément est constitué d'une première partie annulaire 8, d'une deuxième partie annulaire 9 de forme conique et du rebord radial 10. La première partie annulaire 8, de forme cylindrique, peut éventuellement être remplacée par une première partie annulaire 8a qui se rétrécit coniquement dans le sens de l'embrochage, comme représenté en pointille. L'élément de serrage 3 d'une telle exécution assure en plus le centrage exact du tube ou du tuyau flexible 6 pendant son enfoncement dans le raccord. We see that this element consists of a first annular part 8, a second annular part 9 of conical shape and the radial rim 10. The first annular part 8, of cylindrical shape, can optionally be replaced by a first annular part 8a which tapers conically in the direction of plugging in, as shown in dotted lines. The clamping element 3 of such an embodiment also ensures exact centering of the tube or flexible pipe 6 during its insertion into the fitting.

La figure 3 montre une coupe axiale partieLle d'un élément de serrage 3 dont la première partie annulaire 8 ou 8a est intérieurement pourvue de rainures circulaires 12 en dents de scie.  Figure 3 shows an axial section partLle of a clamping element 3 whose first annular part 8 or 8a is internally provided with circular grooves 12 in sawtooth.

Si un démontage ultérieur est nécessaire, l'écrou 2 peut être dévissé de la pièce filetée 1 et être remonté ensuite, même à plusieurs reprises, sans que ta fonction du raccord soit compromise.  If subsequent disassembly is necessary, the nut 2 can be unscrewed from the threaded piece 1 and then reassembled, even several times, without compromising the function of the fitting.

Claims (3)

REVENDICATIONS 1. Raccord embrochable pour tubes ou tuyaux flexibles, comprenant une pièce filetée et un écrou correspondant pour fixer une extrémité de tube ou de tuyau à la pièce filetée, dont le côté recevant le tube porte une tubulure cylindrique devant supporter le tube intérieurement, le perçage de L'écrou s'évasant coniquement vers la pièce filetée et contenant un élément de serrage conçu pour entourer Le tube, caractérisé en ce que : a) l'élément de serrage (3) possède l'élasticité du caoutchouc 1. Plug-in fitting for flexible tubes or hoses, comprising a threaded part and a corresponding nut to fix one end of tube or hose to the threaded part, the side of which receives the tube carries a cylindrical tubing which must support the tube internally, drilling of The nut flaring conically towards the threaded part and containing a clamping element designed to surround the tube, characterized in that: a) the clamping element (3) has the elasticity of the rubber et est constitué d'une première partie annulaire (8) destinée and consists of a first annular part (8) intended à recevoir le tube (6) et d'une deuxième partie annulaire (9) to receive the tube (6) and a second annular part (9) qui part de L'extrémité axiale côté tube de la première partie which leaves from the axial end tube side of the first part annulaire, s'élargit coniquement vers La pièce filetée t1) et annular, widens conically towards the threaded piece t1) and porte à son autre extrémité axiale un rebord (10) orienté carries at its other axial end a flange (10) oriented radialement, b) la première partie annulaire (8) possède un diamètre intérieur radially, b) the first annular part (8) has an internal diameter qui est plus petit que le diamètre extérieur du tube ou du which is smaller than the outside diameter of the tube or tuyau (6). pipe (6). 2. Raccord selon la revendication 1, caractérisé en ce que la première partie annulaire (8a) de l'élément de serrage (3) forme un cône qui se rétrécit dans le sens de l'embrochage. 2. Connection according to claim 1, characterized in that the first annular part (8a) of the clamping element (3) forms a cone which narrows in the direction of racking. 3. Raccord selon la revendication 1 ou 2, caractérisé en ce que la première partie annulaire (8, 8a) est intérieurement pourvue de rainures circulaires (12) dont la profondeur diminue dans le sens de l'embrochage.  3. Connection according to claim 1 or 2, characterized in that the first annular part (8, 8a) is internally provided with circular grooves (12) whose depth decreases in the direction of racking.
FR8606761A 1985-05-15 1986-05-12 PLUG-IN CONNECTION FOR FLEXIBLE TUBES OR PIPES Expired FR2582075B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853517506 DE3517506A1 (en) 1985-05-15 1985-05-15 Plug connection

Publications (2)

Publication Number Publication Date
FR2582075A1 true FR2582075A1 (en) 1986-11-21
FR2582075B1 FR2582075B1 (en) 1988-11-18

Family

ID=6270796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8606761A Expired FR2582075B1 (en) 1985-05-15 1986-05-12 PLUG-IN CONNECTION FOR FLEXIBLE TUBES OR PIPES

Country Status (4)

Country Link
JP (1) JPS61262289A (en)
DE (1) DE3517506A1 (en)
FR (1) FR2582075B1 (en)
IT (3) IT1191388B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669654A1 (en) * 2004-12-13 2006-06-14 Gardner Denver Elmo Technology GmbH Compressor with Connector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005189208A (en) * 2003-12-26 2005-07-14 Asahi Organic Chem Ind Co Ltd Detector for conductivity meter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH111937A (en) * 1924-06-06 1925-09-16 Laderer Hugo Pipe connection with conical sealing ring.
US2585453A (en) * 1949-04-08 1952-02-12 John P Gallagher Interchangeable, self-releasing, self-locking high-pressure tube and pipe connector unit
GB914923A (en) * 1961-05-30 1963-01-09 Frederick Russell Duffield Improved pipe coupling
US3957295A (en) * 1975-01-31 1976-05-18 Nyltite Corporation Of America Pipe coupling seal
EP0066023A1 (en) * 1981-05-18 1982-12-08 Continental Disc Corporation Overpressure relief valve mechanism
DE3131690A1 (en) * 1981-08-11 1983-02-24 Armaturenfabrik Hermann Voss GmbH + Co, 5272 Wipperfürth "PLUG-IN FITTING FOR QUICK AND DETACHABLE CONNECTION FOR PLASTIC PIPELINES"

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7221985U (en) * 1972-11-23 Societe Trefimetaux Device for the non-stick connection of pipes made of plastic material
US1683076A (en) * 1924-01-22 1928-09-04 Victaulic Company Ltd Spigot and socket pipe joint
DE3011430C2 (en) * 1980-03-25 1983-05-26 Armaturenfabrik Hermann Voss GmbH + Co, 5272 Wipperfürth Plug-in fitting for quick and detachable connection for plastic pipelines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH111937A (en) * 1924-06-06 1925-09-16 Laderer Hugo Pipe connection with conical sealing ring.
US2585453A (en) * 1949-04-08 1952-02-12 John P Gallagher Interchangeable, self-releasing, self-locking high-pressure tube and pipe connector unit
GB914923A (en) * 1961-05-30 1963-01-09 Frederick Russell Duffield Improved pipe coupling
US3957295A (en) * 1975-01-31 1976-05-18 Nyltite Corporation Of America Pipe coupling seal
EP0066023A1 (en) * 1981-05-18 1982-12-08 Continental Disc Corporation Overpressure relief valve mechanism
DE3131690A1 (en) * 1981-08-11 1983-02-24 Armaturenfabrik Hermann Voss GmbH + Co, 5272 Wipperfürth "PLUG-IN FITTING FOR QUICK AND DETACHABLE CONNECTION FOR PLASTIC PIPELINES"

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669654A1 (en) * 2004-12-13 2006-06-14 Gardner Denver Elmo Technology GmbH Compressor with Connector

Also Published As

Publication number Publication date
FR2582075B1 (en) 1988-11-18
IT8606945V0 (en) 1986-02-28
IT8605136A0 (en) 1986-02-28
DE3517506C2 (en) 1987-07-16
DE3517506A1 (en) 1986-11-27
JPS61262289A (en) 1986-11-20
IT8605136A1 (en) 1987-08-28
IT1191388B (en) 1988-03-23

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