WO2001094798A1 - Insert for implanting a tube connection in a tapped housing - Google Patents

Insert for implanting a tube connection in a tapped housing Download PDF

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Publication number
WO2001094798A1
WO2001094798A1 PCT/FR2001/001758 FR0101758W WO0194798A1 WO 2001094798 A1 WO2001094798 A1 WO 2001094798A1 FR 0101758 W FR0101758 W FR 0101758W WO 0194798 A1 WO0194798 A1 WO 0194798A1
Authority
WO
WIPO (PCT)
Prior art keywords
free end
ring
housing
anchoring
insert
Prior art date
Application number
PCT/FR2001/001758
Other languages
French (fr)
Inventor
Philippe Le Quere
Marc Govaerts
Original Assignee
Legris Sa
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 Legris Sa filed Critical Legris Sa
Priority to AU67609/01A priority Critical patent/AU6760901A/en
Publication of WO2001094798A1 publication Critical patent/WO2001094798A1/en

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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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts
    • F16B43/004—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts with a radial cut in order to improve elasticity of the washer
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
    • F16B21/084—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part with a series of flexible ribs or fins extending laterally from the shank of the stud, pin or spigot, said ribs or fins deforming predominantly in a direction parallel to the direction of insertion of the shank
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
    • F16B21/086—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion
    • 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
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/091—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
    • F16L37/0915—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers with a separate member for releasing the coupling

Definitions

  • the present invention relates to an insert for installing a tube connector in the threaded housing of an element to which the tube is to be connected.
  • Such inserts are widely used in the industry and generally comprise an externally threaded cylindrical body to cooperate with the threaded housing and, internally, means for sealingly retaining a tube or a pipe to be connected to the element.
  • Inserts which are forcibly engaged in smooth housings and clamped in them by anti-extraction reliefs. These reliefs can be in one piece with the insert or attached to it in the form for example of a ring of elastic teeth which bite into the interior surface of the housing. This installation is completely removable and is not presented as being able to cooperate with a threaded housing in place of a screwed insert.
  • an insert which in a first version has the advantage of being implanted in a threaded orifice without having to be screwed into it and in a second version, the additional advantage of not being removable, this that is not a screwed insert, with for the two versions almost all of the identical constituents, hence great manufacturing standardization.
  • the invention therefore relates to an insert for implanting a tube connection in a threaded housing comprising a 'cylindrical body provided externally with at least one ring of anchoring lugs, each folded down towards the cylindrical part according to a sense substantially opposite to the direction of introduction of the element into the threaded housing to form an angle with the central axis, and each, elastically deformable between a first state in which the free end of the anchoring tab is spaced from the central axis of the cylindrical part by a distance greater than the internal radius of the internal thread and a second state in which the distance separating the free end from the central axis is less than the internal radius of the internal thread, the free end from at least one lug being axially offset with respect to the free end of another lug in the above-mentioned first state.
  • the element is fixed in the threaded housing by simply pushing the cylindrical body therein.
  • Each anchor tab then deforms into its second state each time its free end meets a crest of the thread or threads and returns elastically to its first state when its free end is received between two crests.
  • the free end of at least one deformable tab is received between two ridges bearing against a portion of the side of the thread, in its first state of deformation opposing any extraction of the cylindrical body outside the housing.
  • the axial offset makes it possible to ensure satisfactory anchoring of the insert in the tapped housing because, if the teeth are sufficient in number, at least two tabs will have penetrated between two tapping threads. In all cases, a tightening of the cylindrical body can be obtained to complete the fixing by rotating the cylindrical body in the housing. The fixing of the element in the housing is thus very rapid.
  • each anchoring lug is integral with a ring received in an external groove of the cylindrical body and at least two anchoring lugs are of different lengths.
  • the insert comprises two rings of axially consecutive anchoring lugs, each ring comprising a ring received in an external groove of the cylindrical body.
  • the ring (or rings) is rotatably mounted in the groove of the body. To make it unscrewable, the ring (or rings) is immobilized in the groove.
  • each anchoring lug has an end face substantially tangent to the angle helix of the tapping. It is then possible to obtain a linear or even surface contact zone between the free end of the anchoring tab and the thread.
  • FIG. 1 is a view in longitudinal section of an instant fitting in accordance with a first embodiment of the invention
  • FIG. 2 is an elevation view of the anchoring means of this instant connection
  • FIG. 3 is a view similar to FIG. 1 of an instant connector according to a second embodiment of the invention.
  • FIG. 4 is an elevational view of the anchoring means of this instant connection.
  • the invention is described here in an application to an insert intended to be fixed to a support S in which is formed a channel shaped into a threaded housing T opening to the outside of the support S.
  • the housing T here has a single thread F (but may include several if necessary) and has an internal radius r and a helix angle ⁇ .
  • the support S is for example the housing of a pump, a regulator, the housing of a fluidic module, a reservoir, etc.
  • the insert comprises internal means for instantaneous connection of a pipe to the support S. with reference to FIG.
  • the insert comprises a body 1, of central axis 22, which is provided with a bore 2 axially divided into three parts, namely, from right to left, a large diameter part 3 for receiving a spike socket 4 and an annular seal 5, a part 6 whose diameter corresponds substantially to the outside diameter of the pipe to be inserted in this fitting and a part 7 receiving an end socket 8 which has an inside diameter substantially equal to the diameter inside this pipe and has a first end provided with an external annular step 9 which hooks behind the shoulder 10 connecting part 6 to part 7 and an opposite end projecting from the outside of the body 1 and provided with a collar 11.
  • the collar 11 has a radial surface 27 which faces an external radial surface 12 of the body 1 and defines therewith an external groove 13.
  • the spike socket 4 is here shown in two parts 14 and 15 which are inserted and held by force in the body 1 according to a known technique.
  • the two parts 14 and 15 define between them a groove 16 which constitutes a housing for a washer 17 provided with hooking teeth and retaining the pipe which will be introduced into the bore 2.
  • the body 1 here comprises a head 18 delimiting a shoulder 19 projecting radially from the external surface of the cylindrical body 1 to define a stop for the insertion of the fitting into the housing T.
  • a circular groove 20 is formed in the shoulder 19 around the cylindrical body 1 to receive an elastically compressible seal 21.
  • a tubular pusher 32 is mounted in the part 14 of the insert 4 to be movable to slide between an inactive extended position in which it is retained by a shoulder 33 in abutment with a shoulder 34 in the part 14, the washer 17 then being simply by pressing on the nose 35 of this pusher and a retracted position in which the shoulders 33, 34 are spaced from one another and the nose 35 lifts all of the teeth of the washer 17.
  • Means for anchoring the body 1 in the thread are mounted in the external groove 13 of the body 1.
  • these means comprise two contiguous rings 24 having end surfaces 25 provided with reliefs 26, for example a serrated notch, for cooperating, on the one hand, with one another by their surfaces d end 25 adjacent and, on the other hand, for one with corresponding reliefs 28 formed in the radial surface 27 of the flange 11 and for the other with corresponding reliefs formed in the radial surface 12.
  • the rings 24 are thus linked in rotation with the body 1.
  • Anchoring lugs 29 each secured to a ring 24 extend in a crown laterally with respect to the rings 24 so that they form an angle with the central axis 22 of the body and extend in the direction of the head 18 of it.
  • Each anchoring tab 29 has one end secured to the external surface of the ring 24 concerned and a free opposite end 30 which has an end facet 31 substantially tangent to the helix of the thread F of angle ⁇ .
  • Each anchor tab 29 is deformable between a first state in which the free end 31 is spaced from the central axis 22 by a distance greater than the internal radius r of the housing T and a second state in which the free end is spaced from the central axis 22 ' a distance less than the interior radius r of the housing T.
  • Each ring 24 and the corresponding anchoring lugs 29 are here made in one piece by injection of a thermoplastic material. They could also be made of metal.
  • the rings 24 are threaded onto the bottom of the external groove 13 before the end sleeve 8 is put in place.
  • the end sleeve 8 is then snapped into the body 1 and keeps the rings 24 in place by applying them against the radial surface 12.
  • the anchoring lugs 29 of the rings 24 form two rows offset axially with respect to each other. The same result can be obtained by means of a single ring carrying two rings of anchoring lugs offset axially.
  • connection of the fitting to the support S is carried out by introducing the body 1 into the housing T in the direction indicated by the arrow I until the head 18 of the body 1 abuts, by crushing the seal 21, against the surface outside of the support S onto which the housing T opens.
  • the anchoring tabs 29 will successively deform between their two states to disappear when they meet the crests C of the thread F and then return elastically so that their free end 30 extends between two peaks.
  • the one-touch fitting has a structure similar to that of the one-touch fitting shown in FIG. 1 except with regard to the terminal sleeve 8 which is mounted on the external surface of the body 1.
  • the terminal sleeve 8 can be fixed by gluing or by conical fitting.
  • the terminal sleeve 8 defines a substantially radial shoulder 27 which has a concave frustoconical shape.
  • the anchoring means here comprise a single washer 24 in lateral projection from which extend anchoring tabs 29a, 29b of two different lengths (more than two different lengths can be provided). These anchoring lugs 29 are deformable in a similar manner to that of the anchoring lugs of the first embodiment.
  • anchoring lug 29a, 29b Due to the difference in length of the anchoring lugs 29a, 29b it is ensured as above that at least one anchoring lug 29 of each length will have its free end 30 housed between two crests of the thread F to oppose an effort to extract the fitting.
  • the concave frustoconical shape of the shoulder 27 forms a stop preventing the anchoring tabs 29 from turning over under an extraction force which would be exerted on the body 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The invention concerns an insert for implanting a tube connection in a tapped housing (T) comprising a cylindrical body (1) provided on the outside with at least a ring of anchor lugs (26) each folded down towards the cylindrical portion (1) along a direction substantially opposite to the inserting direction of the element into the tapping to form an angle with the central axis (22), and each elastically deformable between a first state wherein the free end of the anchor lug is spaced apart from the central axis (22) of the cylindrical portion by a distance greater than an internal radius (r) of the housing and a second state wherein the distance separating the free end from the central axis is less than the internal radius of the housing, the free end of at least a lug (29) being axially offset relative to the free end of another lug in said first state.

Description

Insert d'implantation d'un raccord de tube dans un logement taraudé. Installation insert for a tube fitting in a threaded housing.
La présente invention concerne un insert d'implantation d'un raccord de tube dans le logement taraudé d'un élément auquel le tube doit être raccordé.The present invention relates to an insert for installing a tube connector in the threaded housing of an element to which the tube is to be connected.
De tels inserts sont largement répandus dans l'industrie et comportent généralement un corps cylindrique extérieurement fileté pour coopérer avec le logement taraudé et, intérieurement, des moyens de retenue étanche d'un tube ou d'une conduite à raccorder à l'élément.Such inserts are widely used in the industry and generally comprise an externally threaded cylindrical body to cooperate with the threaded housing and, internally, means for sealingly retaining a tube or a pipe to be connected to the element.
La mise en place de l' insert demande d'exécuter un vissage ce qui est une opération longue donc coûteuse.The establishment of the insert requires to perform a screwing which is a long operation therefore expensive.
On connaît des inserts qui sont engagés à force dans des logements lisses et cramponnés dans ceux-ci par des reliefs anti-extraction. Ces reliefs peuvent être en une seule pièce avec 1 ' insert ou rapportés sur celui-ci sous la forme par exemple d'une couronne de dents élastiques qui viennent mordre dans la surface intérieure du logement. Cette implantation est totalement indémontable et n'est pas présentée comme pouvant coopérer avec un logement taraudé en lieu et place d'un insert vissé.Inserts are known which are forcibly engaged in smooth housings and clamped in them by anti-extraction reliefs. These reliefs can be in one piece with the insert or attached to it in the form for example of a ring of elastic teeth which bite into the interior surface of the housing. This installation is completely removable and is not presented as being able to cooperate with a threaded housing in place of a screwed insert.
Par la présente invention, on propose un insert qui dans une première version présente l'avantage d'être implanté dans un orifice taraudé sans avoir à y être vissé et dans une seconde version, l'avantage supplémentaire de n'être pas démontable, ce que n'est pas un insert vissé, avec pour les deux versions la quasi-totalité des constituants identiques, d'où une grande standardisation de fabrication.By the present invention, an insert is proposed which in a first version has the advantage of being implanted in a threaded orifice without having to be screwed into it and in a second version, the additional advantage of not being removable, this that is not a screwed insert, with for the two versions almost all of the identical constituents, hence great manufacturing standardization.
A cet effet l'invention a donc pour objet un insert d'implantation d'un raccord de tube dans un logement taraudé comportant un ' corps cylindrique pourvu extérieurement d'au moins une couronne de pattes d'ancrage, chacune rabattue vers la partie cylindrique selon un sens sensiblement opposé au sens d'introduction de l'élément dans le logement taraudé pour former un angle avec 1 ' axe central, et chacune, élastiquement deformable entre un premier état dans lequel l'extrémité libre de la patte d'ancrage est écartée de l'axe central de la partie cylindrique d'une distance supérieure au rayon intérieur du taraudage et un deuxième état dans lequel la distance séparant l'extrémité libre de l'axe central est inférieure au rayon intérieur du taraudage, l'extrémité libre d'au moins une patte étant axialement décalée par rapport à l'extrémité libre d'une autre patte dans le premier état susdit .To this end the invention therefore relates to an insert for implanting a tube connection in a threaded housing comprising a 'cylindrical body provided externally with at least one ring of anchoring lugs, each folded down towards the cylindrical part according to a sense substantially opposite to the direction of introduction of the element into the threaded housing to form an angle with the central axis, and each, elastically deformable between a first state in which the free end of the anchoring tab is spaced from the central axis of the cylindrical part by a distance greater than the internal radius of the internal thread and a second state in which the distance separating the free end from the central axis is less than the internal radius of the internal thread, the free end from at least one lug being axially offset with respect to the free end of another lug in the above-mentioned first state.
Ainsi, l'élément est fixé dans le logement taraudé en poussant simplement le corps cylindrique dans celui-ci. Chaque patte d'ancrage se déforme alors dans son deuxième état à chaque fois que son extrémité libre rencontre une crête du ou des filets du taraudage et revient élastiquement vers son premier état lorsque son extrémité libre est reçue entre deux crêtes. Lorsque le corps cylindrique est suffisamment enfoncé dans le taraudage, l'extrémité libre d'une patte deformable au moins est reçue entre deux crêtes en appui contre une portion du flanc du filet, dans son premier état de déformation s 'opposant à toute extraction du corps cylindrique hors du logement. Le décalage axial permet d'assurer un ancrage satisfaisant de 1 ' insert dans le logement taraudé car, si les dents sont suffisantes en nombre, deux pattes au moins auront pénétré entre deux filets de taraudage. Dans tous les cas, un serrage du corps cylindrique peut être obtenu pour achever la fixation en faisant tourner le corps cylindrique dans le logement. La fixation de l'élément dans le logement, est de la sorte très rapide.Thus, the element is fixed in the threaded housing by simply pushing the cylindrical body therein. Each anchor tab then deforms into its second state each time its free end meets a crest of the thread or threads and returns elastically to its first state when its free end is received between two crests. When the cylindrical body is sufficiently pressed into the thread, the free end of at least one deformable tab is received between two ridges bearing against a portion of the side of the thread, in its first state of deformation opposing any extraction of the cylindrical body outside the housing. The axial offset makes it possible to ensure satisfactory anchoring of the insert in the tapped housing because, if the teeth are sufficient in number, at least two tabs will have penetrated between two tapping threads. In all cases, a tightening of the cylindrical body can be obtained to complete the fixing by rotating the cylindrical body in the housing. The fixing of the element in the housing is thus very rapid.
On peut obtenir ce décalage axial des extrémités par au moins deux voies différentes . Dans un premier cas chaque patte d'ancrage est solidaire d'une bague reçue dans une gorge externe du corps cylindrique et au moins deux pattes d'ancrage sont de longueurs différentes.This axial offset of the ends can be obtained by at least two different ways. In a first case, each anchoring lug is integral with a ring received in an external groove of the cylindrical body and at least two anchoring lugs are of different lengths.
Dans un deuxième cas, 1 ' insert comporte deux couronnes de pattes d'ancrage axialement consécutives, chaque couronne comportant une bague reçue dans une gorge externe du corps cylindrique.In a second case, the insert comprises two rings of axially consecutive anchoring lugs, each ring comprising a ring received in an external groove of the cylindrical body.
En outre si on veut rendre 1 ' insertion indémontable, la bague (ou les bagues) est montée tournante dans la gorge du corps. Pour la rendre dévissable, la bague (ou les bagues) est immobilisée dans la gorge.In addition, if one wishes to make the insertion non-removable, the ring (or rings) is rotatably mounted in the groove of the body. To make it unscrewable, the ring (or rings) is immobilized in the groove.
Enfin pour améliorer la qualité de l'ancrage, l'extrémité libre de chaque patte d'ancrage possède une face terminale sensiblement tangente à l'hélice d'angle du taraudage . II est alors possible d'obtenir une zone de contact linéaire voire surfacique entre l'extrémité libre de la patte d'ancrage et le filet.Finally, to improve the quality of the anchoring, the free end of each anchoring lug has an end face substantially tangent to the angle helix of the tapping. It is then possible to obtain a linear or even surface contact zone between the free end of the anchoring tab and the thread.
D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit de modes de réalisation particuliers non limitatifs de 1 ' invention.Other characteristics and advantages of the invention will emerge on reading the following description of particular non-limiting embodiments of the invention.
Il sera fait référence aux dessins annexés, parmi lesquels :Reference will be made to the appended drawings, among which:
- la figure 1 est une vue en coupe longitudinale d'un raccord instantané conforme à un premier mode de réalisation de l'invention,FIG. 1 is a view in longitudinal section of an instant fitting in accordance with a first embodiment of the invention,
- la figure 2 est une vue en élévation des moyens d'ancrage de ce raccord instantané,FIG. 2 is an elevation view of the anchoring means of this instant connection,
- la figure 3 est une vue analogue à la figure 1 d'un raccord instantané selon un deuxième mode de réalisation de l'invention,FIG. 3 is a view similar to FIG. 1 of an instant connector according to a second embodiment of the invention,
- la figure 4 est une vue en élévation des moyens d'ancrage de ce raccord instantané.- Figure 4 is an elevational view of the anchoring means of this instant connection.
L'invention est décrite ici dans une application à un insert destiné à être fixé à un support S dans lequel est ménagé un canal conformé en un logement taraudé T débouchant à l'extérieur du support S. Le logement T possède ici un filet F unique (mais peut en comprendre plusieurs éventuellement) et présente un rayon intérieur r et un angle d'hélice α. Le support S est par exemple le carter d'une pompe, d'un régulateur, le boîtier d'un module fluidique, un réservoir... L' insert comporte des moyens intérieurs de raccordement instantané d'une conduite au support S. En référence à la figure 1, 1 ' insert comprend un corps 1, d'axe central 22, qui est pourvu d'un alésage 2 divisé axialement en trois parties à savoir, de droite à gauche, une partie de grand diamètre 3 pour recevoir une douille à crampons 4 et un joint d'étanchéité 5 annulaire, une partie 6 dont le diamètre correspond sensiblement au diamètre extérieur de la conduite à insérer dans ce raccord et une partie 7 recevant une douille terminale 8 qui a un diamètre intérieur sensiblement égal au diamètre intérieur de cette conduite et possède une première extrémité pourvue d'un redan annulaire extérieur 9 qui vient s'accrocher derrière 1 ' êpaulement 10 raccordant la partie 6 à la partie 7 et une extrémité opposée en saillie à l'extérieur du corps 1 et pourvue d'une collerette 11. La collerette 11 possède une surface radiale 27 qui fait face à une surface radiale 12 externe du corps 1 et définit avec celle-ci une gorge externe 13.The invention is described here in an application to an insert intended to be fixed to a support S in which is formed a channel shaped into a threaded housing T opening to the outside of the support S. The housing T here has a single thread F (but may include several if necessary) and has an internal radius r and a helix angle α. The support S is for example the housing of a pump, a regulator, the housing of a fluidic module, a reservoir, etc. The insert comprises internal means for instantaneous connection of a pipe to the support S. with reference to FIG. 1, the insert comprises a body 1, of central axis 22, which is provided with a bore 2 axially divided into three parts, namely, from right to left, a large diameter part 3 for receiving a spike socket 4 and an annular seal 5, a part 6 whose diameter corresponds substantially to the outside diameter of the pipe to be inserted in this fitting and a part 7 receiving an end socket 8 which has an inside diameter substantially equal to the diameter inside this pipe and has a first end provided with an external annular step 9 which hooks behind the shoulder 10 connecting part 6 to part 7 and an opposite end projecting from the outside of the body 1 and provided with a collar 11. The collar 11 has a radial surface 27 which faces an external radial surface 12 of the body 1 and defines therewith an external groove 13.
La douille à crampons 4 est ici représentée en deux parties 14 et 15 qui sont introduites et maintenues à force dans le corps 1 selon une technique connue. Les deux parties 14 et 15 définissent entre elles une gorge 16 qui constitue un logement pour une rondelle 17 pourvue de dents d'accrochage et de retenue de la conduite qui sera introduite dans 1 ' alésage 2.The spike socket 4 is here shown in two parts 14 and 15 which are inserted and held by force in the body 1 according to a known technique. The two parts 14 and 15 define between them a groove 16 which constitutes a housing for a washer 17 provided with hooking teeth and retaining the pipe which will be introduced into the bore 2.
Le corps 1 comprend ici une tête 18 délimitant un êpaulement 19 en saillie radiale de la surface externe du corps cylindrique 1 pour définir une butée à l'enfoncement du raccord dans le logement T. Une rainure circulaire 20 est ménagée dans l' êpaulement 19 autour du corps cylindrique 1 pour recevoir un joint d'étanchêitê compressible élastiquement 21.The body 1 here comprises a head 18 delimiting a shoulder 19 projecting radially from the external surface of the cylindrical body 1 to define a stop for the insertion of the fitting into the housing T. A circular groove 20 is formed in the shoulder 19 around the cylindrical body 1 to receive an elastically compressible seal 21.
Un poussoir tubulaire 32 est monté dans la partie 14 de 1 ' insert 4 pour être mobile à coulissement entre une position sortie inactive dans laquelle il est retenu par un êpaulement 33 en butée avec un êpaulement 34 de la partie 14, la rondelle 17 étant alors simplement en appui sur le nez 35 de ce poussoir et une position rentrée dans laquelle les épaulements 33, 34 sont espacés l'un de l'autre et le nez 35 soulève la totalité des dents de la rondelle 17.A tubular pusher 32 is mounted in the part 14 of the insert 4 to be movable to slide between an inactive extended position in which it is retained by a shoulder 33 in abutment with a shoulder 34 in the part 14, the washer 17 then being simply by pressing on the nose 35 of this pusher and a retracted position in which the shoulders 33, 34 are spaced from one another and the nose 35 lifts all of the teeth of the washer 17.
Des moyens d'ancrage du corps 1 dans le taraudage sont montés dans la gorge externe 13 du corps 1.Means for anchoring the body 1 in the thread are mounted in the external groove 13 of the body 1.
En référence également à la figure 2, ces moyens comprennent deux bagues 24 accolées ayant des surfaces d'extrémité 25 pourvues de reliefs 26, par exemple un crantage en dents de scie, pour coopérer, d'une part, entre elles par leurs surfaces d'extrémité 25 adjacentes et, d'autre part, pour l'une avec des reliefs correspondants 28 ménagés dans la surface radiale 27 de la collerette 11 et pour l'autre avec des reliefs correspondants ménagés dans la surface radiale 12. Les bagues 24 sont ainsi liées en rotation avec le corps 1.With reference also to FIG. 2, these means comprise two contiguous rings 24 having end surfaces 25 provided with reliefs 26, for example a serrated notch, for cooperating, on the one hand, with one another by their surfaces d end 25 adjacent and, on the other hand, for one with corresponding reliefs 28 formed in the radial surface 27 of the flange 11 and for the other with corresponding reliefs formed in the radial surface 12. The rings 24 are thus linked in rotation with the body 1.
Des pattes d'ancrage 29 solidaires chacune d'une bague 24 s'étendent en couronne latéralement par rapport aux bagues 24 de manière qu'elles forment un angle avec l'axe central 22 du corps et s'étendent en direction de la tête 18 de celui-ci.Anchoring lugs 29 each secured to a ring 24 extend in a crown laterally with respect to the rings 24 so that they form an angle with the central axis 22 of the body and extend in the direction of the head 18 of it.
Chaque patte d'ancrage 29 comporte une extrémité solidaire de la surface externe de la bague 24 concernée et une extrémité opposée libre 30 qui comporte une facette d'extrémité 31 sensiblement tangente à l'hélice du filet F d'angle α. Chaque patte d'ancrage 29 est deformable entre un premier état dans lequel l'extrémité libre 31 est écartée de l'axe central 22 d'une distance supérieure au rayon intérieur r du logement T et un deuxième état dans lequel l'extrémité libre est écartée de l'axe central 22 d'une distance inférieure au rayon intérieur r du logement T.Each anchoring tab 29 has one end secured to the external surface of the ring 24 concerned and a free opposite end 30 which has an end facet 31 substantially tangent to the helix of the thread F of angle α. Each anchor tab 29 is deformable between a first state in which the free end 31 is spaced from the central axis 22 by a distance greater than the internal radius r of the housing T and a second state in which the free end is spaced from the central axis 22 ' a distance less than the interior radius r of the housing T.
Chaque bague 24 et les pattes d'ancrage 29 correspondantes sont ici réalisées en une seule pièce par injection d'un matériau thermoplastique. Elles pourraient être également réalisées en métal.Each ring 24 and the corresponding anchoring lugs 29 are here made in one piece by injection of a thermoplastic material. They could also be made of metal.
Les bagues 24 sont enfilées sur le fond de la gorge externe 13 avant mise en place de la douille terminale 8. La douille terminale 8 est ensuite encliquetée dans le corps 1 et maintient en place les bagues 24 en les appliquant contre la surface radiale 12. Lorsque les bagues 24 sont en place dans la gorge externe 13, les pattes d'ancrage 29 des bagues 24 forment deux rangées décalées axialement l'une par rapport à l'autre. Le même résultat peut être obtenu au moyen d'une bague unique portant deux couronnes de pattes d'ancrage décalées axialement.The rings 24 are threaded onto the bottom of the external groove 13 before the end sleeve 8 is put in place. The end sleeve 8 is then snapped into the body 1 and keeps the rings 24 in place by applying them against the radial surface 12. When the rings 24 are in place in the external groove 13, the anchoring lugs 29 of the rings 24 form two rows offset axially with respect to each other. The same result can be obtained by means of a single ring carrying two rings of anchoring lugs offset axially.
La fixation du raccord au support S est effectuée en introduisant le corps 1 dans le logement T selon le sens indiqué par la flèche I jusqu'à ce que la tête 18 du corps 1 vienne en butée, en écrasant le joint 21, contre la surface extérieure du support S sur laquelle débouche le logement T. Durant l'insertion du corps 1, les pattes d'ancrage 29 vont successivement se déformer entre leurs deux états pour s'effacer lorsqu'elles vont rencontrer les crêtes C du filet F puis revenir élastiquement de manière que leur extrémité libre 30 s'étende entre deux crêtes.The connection of the fitting to the support S is carried out by introducing the body 1 into the housing T in the direction indicated by the arrow I until the head 18 of the body 1 abuts, by crushing the seal 21, against the surface outside of the support S onto which the housing T opens. During the insertion of the body 1, the anchoring tabs 29 will successively deform between their two states to disappear when they meet the crests C of the thread F and then return elastically so that their free end 30 extends between two peaks.
Lorsque la tête 18 du corps 1 est en butée contre le support S avec écrasement du joint 21, la facette terminale 31 de l'extrémité libre 30 d'au moins une des pattes d'ancrage 29 de chaque couronne sera en appui contre une portion du flanc du filet opposé à la tête 18. Compte tenu de l'inclinaison de la patte d'ancrage 29 par rapport à l'axe central 22, cette patte deformable aura tendance à s'arc-bouter sous un effort d'extraction du raccord et s'opposera ainsi à cet effort. La pente (correspondant à la tangente de l'angle d'hélice α) de la facette d'extrémité 31 de l'extrémité libre 30 des pattes d'ancrage 29, le décalage axial de ces dernières et l'effort d'extraction engendré par la réaction du joint 21 à l'écrasement permettent d'assurer qu'au moins une et probablement deux pattes 29 sont en appui contre une portion du flanc du filet.When the head 18 of the body 1 is in abutment against the support S with crushing of the joint 21, the terminal facet 31 of the free end 30 of at least one of the anchoring lugs 29 of each crown will be in abutment against a portion from the side of the net opposite head 18. Count given the inclination of the anchoring tab 29 with respect to the central axis 22, this deformable tab will tend to brace under an effort to extract the connector and will thus oppose this effort. The slope (corresponding to the tangent of the helix angle α) of the end facet 31 of the free end 30 of the anchoring lugs 29, the axial offset of the latter and the extraction force generated by the reaction of the seal 21 to the crushing make it possible to ensure that at least one and probably two tabs 29 are in abutment against a portion of the side of the thread.
La liaison en rotation des bagues 24 l'une à l'autre et au corps cylindrique permet le démontage par dévissage de l' insert. Les éléments identiques ou analogues porteront une référence identique dans la description qui suit du deuxième mode de réalisation.The rotational connection of the rings 24 to each other and to the cylindrical body allows disassembly by unscrewing the insert. Identical or analogous elements will bear an identical reference in the description which follows of the second embodiment.
En référence à la figure 3 , le raccord instantané a une structure analogue à celle du raccord instantané représenté à la figure 1 sauf en ce qui concerne la douille terminale 8 qui est montée sur la surface externe du corps 1. La douille terminale 8 peut être fixée par collage ou par emmanchement conique.With reference to FIG. 3, the one-touch fitting has a structure similar to that of the one-touch fitting shown in FIG. 1 except with regard to the terminal sleeve 8 which is mounted on the external surface of the body 1. The terminal sleeve 8 can be fixed by gluing or by conical fitting.
La douille terminale 8 définit un êpaulement 27 sensiblement radial qui a une forme tronconique concave.The terminal sleeve 8 defines a substantially radial shoulder 27 which has a concave frustoconical shape.
En référence également à la figure 4, les moyens d'ancrage comprennent ici une rondelle 24 unique en saillie latérale de laquelle s'étendent des pattes d'ancrage 29a, 29b de deux longueurs différentes (plus de deux longueurs différentes peuvent être prévues) . Ces pattes d'ancrage 29 sont déformables de façon analogue à celle des pattes d'ancrage du premier mode de réalisation.With reference also to FIG. 4, the anchoring means here comprise a single washer 24 in lateral projection from which extend anchoring tabs 29a, 29b of two different lengths (more than two different lengths can be provided). These anchoring lugs 29 are deformable in a similar manner to that of the anchoring lugs of the first embodiment.
Du fait de la différence de longueur des pattes d'ancrage 29a, 29b on est assuré comme précédemment qu'au moins une patte d'ancrage 29 de chaque longueur aura son extrémité libre 30 logée entre deux crêtes du filet F pour s'opposer à un effort d'extraction du raccord.Due to the difference in length of the anchoring lugs 29a, 29b it is ensured as above that at least one anchoring lug 29 of each length will have its free end 30 housed between two crests of the thread F to oppose an effort to extract the fitting.
La forme tronconique concave de l' êpaulement 27 forme une butée empêchant que les pattes d'ancrage 29 ne se retournent sous un effort d'extraction qui serait exercé sur le corps 1.The concave frustoconical shape of the shoulder 27 forms a stop preventing the anchoring tabs 29 from turning over under an extraction force which would be exerted on the body 1.
Dans les deux modes de réalisation décrits ci- dessus on peut prévoir de solidariser ou non la ou les bagues 24 au corps l de 1 ' insert dans la gorge 13. Si ces bagues sont libres en rotation dans la gorge, 1 ' insert sera indémontable . In the two embodiments described above, provision may be made to secure or not the ring or rings 24 to the body 1 of the insert in the groove 13. If these rings are free to rotate in the groove, the insert will be removable .

Claims

REVENDICATIONS
1. Insert d'implantation d'un raccord de tube dans un logement taraudé (T) comportant un corps cylindrique (1) pourvu extérieurement d'au moins une couronne de pattes d'ancrage (29) chacune rabattue vers la partie cylindrique1. Insert for installing a tube connector in a threaded housing (T) comprising a cylindrical body (1) provided externally with at least one ring of anchoring lugs (29) each folded down towards the cylindrical part
(1) selon un sens sensiblement opposé au sens d'introduction de l'élément dans le taraudage pour former un angle avec l'axe central (22), et chacune élastiquement deformable entre un premier état dans lequel l'extrémité libre de la patte d'ancrage est écartée de l'axe central (22) de la partie cylindrique d'une distance supérieure au rayon intérieur (r) du logement et un deuxième état dans lequel la distance séparant l'extrémité libre de l'axe central est inférieure au rayon intérieur du logement, caractérisé en ce que l'extrémité libre d'au moins une patte (29) est axialement décalée par rapport à l'extrémité libre d'une autre patte dans le premier état susdit.(1) in a direction substantially opposite to the direction of introduction of the element into the thread to form an angle with the central axis (22), and each elastically deformable between a first state in which the free end of the tab anchor is spaced from the central axis (22) of the cylindrical part by a distance greater than the internal radius (r) of the housing and a second state in which the distance between the free end of the central axis is less to the internal radius of the housing, characterized in that the free end of at least one tab (29) is axially offset with respect to the free end of another tab in the above-mentioned first state.
2. Insert selon la revendication 1, caractérisé en ce que chaque patte d'ancrage (29) est solidaire d'une bague (24) reçue dans une gorge externe (13) du corps cylindrique (1) et en ce qu'au moins deux pattes d'ancrage (29a, 29b) sont de longueurs différentes.2. Insert according to claim 1, characterized in that each anchoring lug (29) is integral with a ring (24) received in an external groove (13) of the cylindrical body (1) and in that at least two anchoring tabs (29a, 29b) are of different lengths.
3. Insert selon la revendication 1, caractérisé en ce qu'il comporte deux couronnes de pattes d'ancrage axialement consécutives, chaque couronne comportant une bague (24) reçue dans une gorge externe (13) du corps cylindrique (1) .3. Insert according to claim 1, characterized in that it comprises two rings of axially consecutive anchoring lugs, each ring comprising a ring (24) received in an external groove (13) of the cylindrical body (1).
4. Insert selon l'une des revendications 2 et 3, caractérisé en ce que la bague (24) est montée tournante dans la gorge (13) du corps (1) .4. Insert according to one of claims 2 and 3, characterized in that the ring (24) is rotatably mounted in the groove (13) of the body (1).
5. Insert selon l'une des revendications 2 et 3, caractérisé en ce que la bague (24) est immobilisée dans la gorge (13) .5. Insert according to one of claims 2 and 3, characterized in that the ring (24) is immobilized in the groove (13).
6. Insert selon la revendication 5, caractérisé en ce que la bague (24) possède au moins une face d'extrémité (25) présentant des reliefs (26) pour coopérer avec des reliefs correspondants (28) d'un flanc (27) de la gorge externe (13) du corps cylindrique (1) .6. Insert according to claim 5, characterized in that the ring (24) has at least one end face (25) having reliefs (26) for cooperating with corresponding reliefs (28) of a sidewall (27) of the external groove (13) of the cylindrical body (1).
7. Elément selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité libre (30) de chaque patte d'ancrage (29) possède une face terminale (31) sensiblement tangente à l'hélice d'angle (a) du taraudage (T) . 7. Element according to any one of the preceding claims, characterized in that the free end (30) of each anchoring lug (29) has an end face (31) substantially tangent to the angle propeller (a ) of the thread (T).
PCT/FR2001/001758 2000-06-08 2001-06-07 Insert for implanting a tube connection in a tapped housing WO2001094798A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU67609/01A AU6760901A (en) 2000-06-08 2001-06-07 Insert for implanting a tube connection in a tapped housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR00/07334 2000-06-08
FR0007334A FR2810087B1 (en) 2000-06-08 2000-06-08 ELEMENT PROVIDED EXTERNALLY WITH MEANS TO COOPERATE WITH TAPPING

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WO2001094798A1 true WO2001094798A1 (en) 2001-12-13

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FR (1) FR2810087B1 (en)
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WO2015184090A1 (en) * 2014-05-30 2015-12-03 Quick Fitting, Inc. Push-to-connect fitting integrated packing arrangement, device and methods
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JP2008506911A (en) * 2004-07-19 2008-03-06 パーカー ハニフイン フランス ソシエテ パール アクション サンプリフィエー Pipe coupling implant cartridge configured to mate with housing
JP4922930B2 (en) * 2004-07-19 2012-04-25 パーカー ハニフイン フランス ソシエテ パール アクション サンプリフィエー Pipe coupling implant cartridge configured to mate with housing
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WO2015184090A1 (en) * 2014-05-30 2015-12-03 Quick Fitting, Inc. Push-to-connect fitting integrated packing arrangement, device and methods
WO2016091434A1 (en) * 2014-12-09 2016-06-16 Festo Ag & Co. Kg Connecting device for a fluid line
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US11035510B1 (en) 2020-01-31 2021-06-15 Quick Fitting Holding Company, Llc Electrical conduit fitting and assembly

Also Published As

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FR2810087B1 (en) 2004-07-23
FR2810087A1 (en) 2001-12-14
AU6760901A (en) 2001-12-17

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