EP2976291A1 - Plunger tube connector for a container for packaging a product, particularly a chemical product - Google Patents

Plunger tube connector for a container for packaging a product, particularly a chemical product

Info

Publication number
EP2976291A1
EP2976291A1 EP14710322.0A EP14710322A EP2976291A1 EP 2976291 A1 EP2976291 A1 EP 2976291A1 EP 14710322 A EP14710322 A EP 14710322A EP 2976291 A1 EP2976291 A1 EP 2976291A1
Authority
EP
European Patent Office
Prior art keywords
compression ring
container
clamping means
product
dip tube
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.)
Withdrawn
Application number
EP14710322.0A
Other languages
German (de)
French (fr)
Inventor
Julien DORMEVAL
Thierry FOUILLET
Patrick Charles
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.)
Arkema France SA
Original Assignee
Arkema France 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 Arkema France SA filed Critical Arkema France SA
Publication of EP2976291A1 publication Critical patent/EP2976291A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/005—Spouts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
    • B67D7/0288—Container connection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0831—Keg connection means combined with valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
    • F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
    • F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
    • 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
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/003—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets devices for holding the open end of a hose

Definitions

  • Plunger tube coupling device for a container for packaging a product, especially a chemical product
  • the present invention relates to the field of product packaging containers, especially chemicals.
  • the present invention relates to a plunger tube coupling device for packaging a product, in particular a toxic and / or harmful and / or odorous and / or flammable chemical.
  • a product in particular a toxic and / or harmful and / or odorous and / or flammable chemical.
  • packaging is meant storage of the product in a container for transporting and preserving before opening the physico-chemical structure of said product for a relatively long period, for example of the order of several months.
  • Such a packaging container is generally associated with a dip tube for filling or emptying.
  • the dip tube forms a conduit for introducing or dispensing the product.
  • the lower end of the dip tube can for example be brought to bear or very close to the bottom of the container in order to be able to distribute the entire product.
  • the user of the container can be in direct contact with the product.
  • the user may also be in contact with the vapors of the product. This can be particularly problematic, especially when the product is a toxic and / or harmful and / or odorous and / or flammable.
  • the present invention aims to remedy these disadvantages.
  • the present invention aims at providing a plunger tube coupling device for packaging a product, in particular a chemical product, making it possible to ensure easy and secure mounting of the plunger tube on the container.
  • the present invention also aims to provide a coupling device for performing a height adjustment of the plunger tube and a locking position of said tube after adjustment.
  • the present invention finally provides a coupling device of simple design and economic.
  • the plunger tube coupling device for a product packaging container in particular a chemical product, comprises a body provided with a through bore for the passage of the plunger tube, a mounted clamping means on the body and provided with an opening for the passage of said dip tube, and a compression ring arranged axially at least partly between the body and the clamping means and comprising a contact surface with an outer surface of the dip tube.
  • Said compression ring cooperates with the body and / or the clamping means to obtain, during a relative axial approximation of said body and said clamping means, a radial displacement towards the inside of said ring.
  • the coupling device With the coupling device, it is possible to introduce the dip tube into the associated container without having to open the top of the container completely. Indeed, the body of the device can be connected directly or indirectly via an additional element at an opening of the container having a diameter substantially greater than that of the dip tube. This reduces the risk of direct contact between the product stored in the container and the user as well as the risk of inhalation of the vapors of the product.
  • the dip tube can be introduced and slide inside the device by simple axial thrust.
  • the compression ring exerts a substantially radial inward force so as to radially compress the outer surface of the dip tube and to prevent axial separation of said tube and the coupling device.
  • the compression ring forms a means for axially locking the dip tube relative to the body and the clamping means of the device.
  • the device also has the advantage of allowing easy disassembly of the dip tube, for example to reposition it at a different height inside the container, or to replace it, or to use the device and the dip tube on another container. of different size and / or volume. To do this, it is necessary to move the clamping means relative to the body in the remote position in which the compression ring is not so illicit radially inwards.
  • the body and the clamping means define an axial space within which the compression ring is housed.
  • the compression ring is thus held axially between the body and the clamping means.
  • This arrangement makes it possible to avoid possible axial de-lidding of the compression ring with respect to the other elements constituting the coupling device.
  • the device forms a unitary assembly that can be handled, transported and mounted with a risk of accidental separation of the elements constituting it particularly limited.
  • the contact surface of the compression ring is continuous in the circumferential direction. Any eventual infiltrations of liquid or gas between the plunger tube and the compression ring are thus greatly reduced.
  • the body or the clamping means comprises a frustoconical portion to obtain the radial displacement towards the inside of the compression ring during the relative axial approximation of the body and the adjustment means.
  • This arrangement makes it possible to obtain, in a simple and effective manner, the radial displacement towards the inside of the compression ring during axial restricitation of said ring by the body and / or the adjustment means.
  • the compression ring may also comprise a frustoconical outer surface cooperating with the frustoconical portion of the body or the clamping means and radially opposed to the contact surface.
  • the compression ring may comprise a centering portion disposed inside the clamping means and a retaining portion axially extending said centering portion.
  • the frustoconical outer surface of the compression ring may be provided on the retaining portion.
  • the compression ring is made of synthetic material, in particular PTFE.
  • the compression ring may be made of metal material or metal alloy elastically deformable, for example copper.
  • the clamping means is mounted on the outer surface of the body, in particular by screwing.
  • the device further comprises a closure cap mounted on the body and intended to close a bung of the associated packaging container.
  • the coupling device makes it possible to further ensure the closure of the bung of the container.
  • the device thus makes it possible to ensure a dual function, namely on the one hand the mounting and locking of the dip tube and, on the other hand, the plugging of the bung of the associated container.
  • the closure cap can be mounted on the outer surface of the body, in particular by screwing.
  • the closure cap may also include fastening means for cooperating with the bung of the conditioning container.
  • the body, the clamping means and the closure member are made of metal material, in particular steel.
  • the invention also relates to a packaging container containing a product, in particular a chemical product, and comprising at least one plug, a connecting device as defined previously mounted at the plug, and a dip tube passing through the connecting device and extending inside the container.
  • FIG. 1 is a sectional view of a container comprising a coupling device according to an exemplary embodiment
  • FIG. 2 is a sectional view of the coupling device of FIG. 1, and
  • Figure 3 is a front view of the connecting device of Figures 1 and 2.
  • FIG. 1 is represented in a supposed vertical position a container designated by the general numerical reference 10.
  • the container 10, of axis 10a is intended for the packaging of one or more toxic chemical products P and or harmful and / or odorous and / or flammable.
  • the container 10 can of course be used for packaging other types of chemicals or not.
  • the container 10 comprises, at its upper end, a bung 12, a dip tube 14 extending inside the container and out of said container, and a connecting device 16 mounted at the bung 12 and through which extends the plunger tube 14.
  • the connecting device 16 is provided to allow the sliding of the plunger tube 14 inside the container 10 and the locking in position of said tube.
  • the plunger tube 14 allows the filling and / or emptying of the container 10.
  • the container 10 also comprises, at its upper end, an additional bung (not shown) provided for balancing the pressure during filling or emptying the container.
  • This additional bung can be equipped with a simple odor filter or a gas adsorber, or a hose connected to a pump or a compressor so as to create the necessary pressure or depression inside. container to empty or refill, respectively.
  • the connecting device 16 comprises a body 1 8, of axis 1 8 a, a clamping nut 20 mounted on the body, a compression ring 22 mounted axially between the body and the body. clamping nut, and a closure plug 24 for closing the bung of the container.
  • the body 1 8 comprises a bore 26 passing axially through said body for the passage of the plunger tube.
  • the bore 26 is constituted by a cylindrical portion 26a coaxial with the axis 1 8a and extending axially from the lower end of the body 1 8, and by a frustoconical portion 26b extending said cylindrical portion and flaring towards outside.
  • the frustoconical portion 26b opens at the upper end of the body 1 8.
  • the body 1 8 comprises an outer surface 28 on which is formed, from an upper end, a first thread (not referenced) for fixing and tightening the tightening nut.
  • the body 1 8 has a generally tubular shape.
  • the body 1 8 could have a bent shape.
  • the clamping nut 20 comprises an annular axial clamping portion 30 internally comprising a thread (not referenced) engaged with the thread of the body 1 8.
  • the clamping portion 30 comprises externally hexagonally arranged to allow clamping of the nut 20 with a wrench.
  • the clamping portion 30 is extended at one end axial located on the opposite side to the body 1 8, by a radial wall 32 comprising a through opening 34 for the passage of the plunger tube 14 and coaxial with the axis 1 8a.
  • the nut 20 and the body 1 8 delimit an axial space inside which is completely mounted the compression ring 22.
  • the annular compression ring 22 is advantageously made in one piece by molding a synthetic plastic material, for example PTFE.
  • the compression ring 22 is elastically deformable.
  • the ring 22 comprises an annular centering portion 36 and an annular retaining portion 38 axially extending said centering portion.
  • the centering portion 36 is centered radially inside the clamping part 30 of the nut and is mounted axially in abutment against the radial wall 32 of said nut.
  • the retaining portion 38 is mounted partly inside the frustoconical portion 26b of the bore of the body 1 8 and bears against said portion.
  • the retaining portion 38 has a frustoconical outer surface 40 substantially in register with the frustoconical portion 26b of the bore. The outer surface 40 is in contact against said frustoconical portion 26b.
  • the compression ring 22 includes an inner surface 42 for engaging the outer surface of the dip tube.
  • the inner surface 42 is radially opposed to the frustoconical outer surface 40.
  • the inner surface 42 forms the bore of the compression ring coaxial with the axis 18a and extends along the centering and retaining portions 38.
  • the inner surface 42 is annular, i. e. continues in the circumferential direction. As will be described in more detail later, when the nut 20 is screwed onto the body 18, the axial action exerted by the nut on the compression ring 22 allows said ring to compress the outer surface radially. of the plunger tube 14 and to obtain axial locking of the tube.
  • the closure cap 24 is screwed on the outer surface 28 of the body axially on the opposite side to the clamping nut 20.
  • a second net (not referenced) is provided on the outer surface 28 of the body 1 8 and is engaged with a thread (not referenced) of the plug 24.
  • the plug 24 allows the closure of the bung 12 ( Figure 1) of the container.
  • the plug 24 has a cup shape.
  • the plug 24 comprises a radial wall 42 comprising a threaded bore screwed onto the body 18 and an axial portion 44 extending a large diameter edge of said radial portion.
  • the axial portion 44 comprises, on its outer surface, a thread (not referenced) provided to cooperate with the thread of the bung 12 in order to obtain the attachment of the device 16 on the associated container 10.
  • the procedure is as follows to introduce the dip tube 14 inside the device, then to achieve height adjustment and blocking said tube.
  • the nut 20 is slightly unscrewed so that the compression ring 22 is not axially caused by said nut.
  • the thread of the nut 20 remains in engagement with the thread of the body 1 8.
  • the dip tube 14 is inserted inside the opening 34 of the nut, the surface inner 42 of the compression ring and the bore 26 of the body.
  • the plunger tube 14 slides through the connecting device 16 and inside the container 10 until the lower end of said tube reaches the desired position, for example in support or at a very short axial distance from the bottom of the container. .
  • the tightening nut 20 is screwed onto the body 1 8 so as to obtain an axial approximation of the radial wall 32 of the nut and the body 1 8.
  • This axial approximation of the nut 20 relative to to the body 1 8 causes the axial displacement of the compression ring 22 towards the body 1 8 and against the frustoconical portion 26b of the bore of said nut, and a radial deformation towards the inside of the retaining portion 38 of the ring via said frustoconical portion 26b.
  • the retaining portion 38 of the compression ring deforms radially towards the outer surface of the tube p length 14 and compresses radially said area.
  • the inner surface 42 of the compression ring comes, at least over part of its length, radially in contact against the outer surface of the plunger tube 14 and radially clamps said surface. This results in the axial locking of the plunger tube 14 relative to the connecting device 16 by jamming said tube by the compression ring 22.
  • the nut 20 is screwed onto the outer surface of the body 1 8.
  • the radial deformation of the compression ring 22 allowing the axial locking of the plunger tube 14 is obtained by virtue of the axial displacement of the nut 20 and the compression ring 22, and to the cooperation of the retaining portion 38 of said ring with the frustoconical portion 26b of the bore of the body.
  • the compression ring 22 thus cooperates with both the nut 20 and the body 1 8 to obtain the radial clamping of the plunger tube 14.
  • the centering portion 36 of the compression ring axially bearing against the upper end of the body 1 8 and to provide on the radial wall 32 of the nut 20 an opening 34 frustoconical shape adapted to cooperate with the retaining portion 38 of the ring.
  • the displacement of the nut causes the radial deformation towards the inside of the compression ring 22.
  • the closure plug 24 is removably mounted on the body 1 8 by screwing.
  • the cap 24 it is possible to fix the cap 24 on the body 1 8 in a manner that can not be dismantled, for example by welding.
  • the removable mounting of the plug 24 is advantageous insofar as plugs of different diameters can then be mounted on the same body 1 8.
  • the diameter of the plug 24 is chosen according to the diameter of the bung of the associated container.
  • the elastic nature of the compression ring 22 also allows adaptability to different diameters of plunger tubes.
  • a coupling device for making easy and fast height adjustment of the associated dip tube and a blocking said tube, and ensuring a good seal to liquids and gases.
  • the connecting device of the invention is particularly suitable for the filling and emptying of toxic and / or harmful and / or odorous and / or flammable products, in particular liquid chemicals transported and / or stored in containers which can be filled or drained by applying pressure or depression.
  • the connecting device of the invention is particularly suitable for plant protection products, especially used in field agriculture, in particular fumigants, and more particularly to disulfides, for example dimethyl disulfide, with halides, for example methyl bromide.
  • 1,3-dichloropropene or chloropicrin (CI 3 C-NO 2 ), but also metasodium (CH 3 -NH-CS 2 Na + ), metam potassium (CH 3 -NH-CS 2 ⁇ K + ) or sodium tetrathiocarbonate (Na 2 CS 4 ), and methyl isothiocyanate (MITC or CH 3 -NC 5) and precursors of MITC, for example Dazomet, alone or in mixtures of two or more of between them in all proportions.

Abstract

The plunger tube connector for a container for packaging a product, particularly a chemical product, comprises a body 18 provided with a through-bore 26 for the passage of the plunger tube, a gripping means 20 mounted on the body and provided with an opening 34 for the passage of said plunger tube, and a compression ring 22 arranged axially at least in part between the body and the gripping means, and comprising a surface 42 of contact with an outer surface of the plunger tube. The compression ring interacts with the body 18 and/or the gripping means 20 in order, when said body and said gripping means are brought closer to one another axially, to obtain a radial shift of said ring towards the inside.

Description

Dispositif de raccord de tube plongeur pour conteneur de conditionnement d' un produit, notamment d' un produit chimique  Plunger tube coupling device for a container for packaging a product, especially a chemical product
La présente invention concerne le domaine des conteneurs de conditionnement de produits, notamment de produits chimiques . The present invention relates to the field of product packaging containers, especially chemicals.
Plus particulièrement, la présente invention concerne un dispositif de raccord de tube plongeur pour conteneur de conditionnement d'un produit, notamment d 'un produit chimique toxique et/ou nocif et/ou odorant et/ou inflammable. Par « conditionnement », on entend un stockage du produit dans un conteneur permettant le transport et la conservation avant ouverture de la structure physico-chimique dudit produit pendant une durée relativement longue, par exemple de l 'ordre de plusieurs mois.  More particularly, the present invention relates to a plunger tube coupling device for packaging a product, in particular a toxic and / or harmful and / or odorous and / or flammable chemical. By "packaging" is meant storage of the product in a container for transporting and preserving before opening the physico-chemical structure of said product for a relatively long period, for example of the order of several months.
Un tel conteneur de conditionnement est généralement associé à un tube plongeur pour réaliser son remplissage ou sa vidange. Le tube plongeur forme un conduit permettant l ' introduction ou la distribution du produit.  Such a packaging container is generally associated with a dip tube for filling or emptying. The dip tube forms a conduit for introducing or dispensing the product.
Classiquement, pour réaliser le remplissage ou la vidange, le couvercle du conteneur est retiré et le tube plongeur est introduit à l' intérieur du conteneur. On parle alors d'un conteneur à ciel ouvert. Conventionally, for filling or emptying, the lid of the container is removed and the dip tube is introduced inside the container. We are talking about an open container.
Pour réaliser la vidange, l ' extrémité inférieure du tube plongeur peut par exemple être amenée en appui ou à très faible distance du fond du conteneur afin de pouvoir distribuer la totalité du produit. To perform the emptying, the lower end of the dip tube can for example be brought to bear or very close to the bottom of the container in order to be able to distribute the entire product.
Avec une telle façon de procéder, l'utilisateur du conteneur peut être en contact direct avec le produit. En outre, l'utilisateur peut également être en contact avec les vapeurs du produit. Ceci peut être particulièrement problématique, notamment lorsque le produit est un produit toxique et/ou nocif et/ou odorant et/ou inflammable.  With such a procedure, the user of the container can be in direct contact with the product. In addition, the user may also be in contact with the vapors of the product. This can be particularly problematic, especially when the product is a toxic and / or harmful and / or odorous and / or flammable.
La présente invention vise à remédier à ces inconvénients.  The present invention aims to remedy these disadvantages.
Plus particulièrement, la présente invention vise à prévoir un dispositif de raccord de tube plongeur pour conteneur de conditionnement d'un produit, notamment d 'un produit chimique, permettant d' assurer de façon aisée et sûre le montage du tube plongeur sur le conteneur. La présente invention vise également à prévoir un dispositif de raccord permettant de réaliser un réglage en hauteur du tube plongeur et un blo cage en position dudit tube après réglage. More particularly, the present invention aims at providing a plunger tube coupling device for packaging a product, in particular a chemical product, making it possible to ensure easy and secure mounting of the plunger tube on the container. The present invention also aims to provide a coupling device for performing a height adjustment of the plunger tube and a locking position of said tube after adjustment.
La présente invention vise enfin un dispositif de raccord de conception simp le et économique.  The present invention finally provides a coupling device of simple design and economic.
Dans un mode de réalisation, le dispositif de raccord de tube plongeur pour conteneur de conditionnement d 'un produit, notamment d'un produit chimique, comprend un corps pourvu d'un alésage traversant pour le passage du tube plongeur, un moyen de serrage monté sur le corps et pourvu d 'une ouverture pour le passage dudit tube plongeur, et une bague de compression disposée axialement au moins en partie entre le corps et le moyen de serrage et comprenant une surface de contact avec une surface extérieure du tube plongeur. Ladite bague de compression coopère avec le corps et/ou le moyen de serrage pour obtenir, lors d'un rapprochement axial relatif dudit corps et dudit moyen de serrage, un déplacement radial vers l ' intérieur de ladite bague.  In one embodiment, the plunger tube coupling device for a product packaging container, in particular a chemical product, comprises a body provided with a through bore for the passage of the plunger tube, a mounted clamping means on the body and provided with an opening for the passage of said dip tube, and a compression ring arranged axially at least partly between the body and the clamping means and comprising a contact surface with an outer surface of the dip tube. Said compression ring cooperates with the body and / or the clamping means to obtain, during a relative axial approximation of said body and said clamping means, a radial displacement towards the inside of said ring.
Avec le dispositif de raccord, il est possible d' introduire le tube plongeur dans le conteneur associé sans qu' il soit nécessaire d' ouvrir complètement la partie supérieure du conteneur. En effet, le corps du dispositif peut être raccordé directement ou indirectement via un élément additionnel au niveau d'une ouverture du conteneur ayant un diamètre sensiblement supérieur à celui du tube plongeur. On réduit ainsi le risque de contact direct entre le produit stocké dans le conteneur et l 'utilisateur ainsi que le risque d' inhalation des vapeurs du produit.  With the coupling device, it is possible to introduce the dip tube into the associated container without having to open the top of the container completely. Indeed, the body of the device can be connected directly or indirectly via an additional element at an opening of the container having a diameter substantially greater than that of the dip tube. This reduces the risk of direct contact between the product stored in the container and the user as well as the risk of inhalation of the vapors of the product.
Par ailleurs, avec le dispositif de raccord, il est possible de faire coulisser le tube plongeur à travers ledit dispositif jusqu' à atteindre la position souhaitée à l ' intérieur du conteneur, puis de réaliser son blocage en hauteur de façon particulièrement aisée.  Furthermore, with the coupling device, it is possible to slide the dip tube through said device to reach the desired position inside the container, then to achieve its blocking height particularly easy.
Pour introduire le tube plongeur à l ' intérieur du dispositif et réaliser un réglage en hauteur, il suffit de positionner le corps et le moyen de serrage dans une position éloignée dans laquelle la bague de compression ne blo que pas axialement l' introduction et le coulissement du tube plongeur. Dans ces conditions, le tube plongeur peut être introduit et coulisser à l ' intérieur du dispositif par simple poussée axiale. To introduce the dip tube inside the device and to carry out a height adjustment, it suffices to position the body and the clamping means in a remote position in which the compression ring does not axially block the introduction and sliding of the dip tube. Under these conditions, the dip tube can be introduced and slide inside the device by simple axial thrust.
Ensuite, le blo cage en position du tube plongeur est obtenu aisément par le rapprochement axial relatif du corps et du moyen de serrage. En effet, ce rapprochement provoque un déplacement radial vers l' intérieur de la bague de compression, ce qui permet d' obtenir une compression radiale de la surface extérieure du tube plongeur. La bague de compression exerce un effort sensiblement radial dirigé vers l' intérieur de sorte à comprimer radialement la surface extérieure du tube plongeur et à empêcher une désolidarisation axiale dudit tube et du dispositif de raccord. La bague de compression forme un moyen de blo cage axial du tube plongeur par rapport au corps et au moyen de serrage du dispositif.  Then, locking the position of the dip tube is easily obtained by the relative axial approximation of the body and the clamping means. Indeed, this approximation causes a radial displacement towards the inside of the compression ring, which makes it possible to obtain a radial compression of the outer surface of the plunger tube. The compression ring exerts a substantially radial inward force so as to radially compress the outer surface of the dip tube and to prevent axial separation of said tube and the coupling device. The compression ring forms a means for axially locking the dip tube relative to the body and the clamping means of the device.
Le dispositif présente également l ' avantage de permettre un démontage aisé du tube plongeur par exemple pour le repositionner à une hauteur différente à l 'intérieur du conteneur, ou pour le remplacer, ou encore pour utiliser le dispositif et le tube plongeur sur un autre conteneur de dimensions et/ou de volume différents. Pour ce faire, il convient de déplacer le moyen de serrage relativement au corps dans la position éloignée dans laquelle la bague de compression n' est pas so llicitée radialement vers l ' intérieur.  The device also has the advantage of allowing easy disassembly of the dip tube, for example to reposition it at a different height inside the container, or to replace it, or to use the device and the dip tube on another container. of different size and / or volume. To do this, it is necessary to move the clamping means relative to the body in the remote position in which the compression ring is not so illicit radially inwards.
De préférence, le corps et le moyen de serrage délimitent un espace axial à l ' intérieur duquel est logée la bague de compression. La bague de compression est ainsi maintenue axialement entre le corps et le moyen de serrage. Cette disposition permet d' éviter une éventuelle déso lidarisation axiale de la bague de compression par rapport aux autres éléments constituant le dispositif de raccord. Le dispositif forme un ensemble unitaire pouvant être manipulé, transporté et monté avec un risque de séparation accidentelle des éléments le constituant particulièrement limité.  Preferably, the body and the clamping means define an axial space within which the compression ring is housed. The compression ring is thus held axially between the body and the clamping means. This arrangement makes it possible to avoid possible axial de-lidding of the compression ring with respect to the other elements constituting the coupling device. The device forms a unitary assembly that can be handled, transported and mounted with a risk of accidental separation of the elements constituting it particularly limited.
Avantageusement, la surface de contact de la bague de compression est continue dans le sens circonférentiel. Les éventuelles infiltrations de liquide ou de gaz entre le tube plongeur et la bague de compression sont ainsi fortement réduites. Advantageously, the contact surface of the compression ring is continuous in the circumferential direction. Any eventual infiltrations of liquid or gas between the plunger tube and the compression ring are thus greatly reduced.
Dans un exemple de réalisation, le corps ou le moyen de serrage comprend une portion tronconique pour obtenir le dép lacement radial vers l ' intérieur de la bague de compression lors du rapprochement axial relatif du corps et du moyen de réglage. Cette disposition permet d' obtenir de façon simple et efficace le déplacement radial vers l' intérieur de la bague de compression lors d'une so llicitation axiale de ladite bague par le corps et/ou le moyen de réglage.  In an exemplary embodiment, the body or the clamping means comprises a frustoconical portion to obtain the radial displacement towards the inside of the compression ring during the relative axial approximation of the body and the adjustment means. This arrangement makes it possible to obtain, in a simple and effective manner, the radial displacement towards the inside of the compression ring during axial restricitation of said ring by the body and / or the adjustment means.
La bague de compression peut également comprendre une surface extérieure tronconique coopérant avec la portion tronconique du corps ou du moyen de serrage et opposée radialement à la surface de contact.  The compression ring may also comprise a frustoconical outer surface cooperating with the frustoconical portion of the body or the clamping means and radially opposed to the contact surface.
Selon une autre caractéristique, la bague de compression peut comprendre une portion de centrage disposée à l ' intérieur du moyen de serrage et une portion de retenue prolongeant axialement ladite portion de centrage. La surface extérieure tronconique de la bague de compression peut être ménagée sur la portion de retenue.  According to another characteristic, the compression ring may comprise a centering portion disposed inside the clamping means and a retaining portion axially extending said centering portion. The frustoconical outer surface of the compression ring may be provided on the retaining portion.
Dans un exemple de mise en œuvre, la bague de compression est réalisée en matière synthétique, notamment en PTFE . En variante, la bague de compression peut être réalisée en matière métallique ou en alliage de métaux déformable élastiquement, par exemple en cuivre.  In an exemplary implementation, the compression ring is made of synthetic material, in particular PTFE. Alternatively, the compression ring may be made of metal material or metal alloy elastically deformable, for example copper.
De préférence, le moyen de serrage est monté sur la surface extérieure du corps, notamment par vissage.  Preferably, the clamping means is mounted on the outer surface of the body, in particular by screwing.
Dans un mode de réalisation avantageux, le dispositif comprend en outre un bouchon d' obturation monté sur le corps et destiné à obturer une bonde du conteneur de conditionnement associé. Ainsi, le dispositif de raccord permet d' assurer en outre l' obturation de la bonde du conteneur. Le dispositif permet donc d ' assurer une double fonction, à savoir d 'une part le montage et le blo cage du tube plongeur et d ' autre part le bouchage de la bonde du conteneur associé. Le bouchon d' obturation peut être monté sur la surface extérieure du corps, notamment par vissage. Le bouchon d 'obturation peut également comprendre des moyens de fixation destinés à coopérer avec la bonde du conteneur de conditionnement. In an advantageous embodiment, the device further comprises a closure cap mounted on the body and intended to close a bung of the associated packaging container. Thus, the coupling device makes it possible to further ensure the closure of the bung of the container. The device thus makes it possible to ensure a dual function, namely on the one hand the mounting and locking of the dip tube and, on the other hand, the plugging of the bung of the associated container. The closure cap can be mounted on the outer surface of the body, in particular by screwing. The closure cap may also include fastening means for cooperating with the bung of the conditioning container.
Dans un exemple de mise en œuvre, le corps, le moyen de serrage et l ' organe d' obturation sont réalisés en matière métallique, notamment en acier.  In an exemplary implementation, the body, the clamping means and the closure member are made of metal material, in particular steel.
L 'invention concerne également un conteneur de conditionnement contenant un produit, notamment un produit chimique, et comprenant au moins une bonde, un dispositif de raccord tel que défini précédemment monté au niveau de la bonde, et un tube plongeur traversant le dispositif de raccord et s ' étendant à l ' intérieur du conteneur.  The invention also relates to a packaging container containing a product, in particular a chemical product, and comprising at least one plug, a connecting device as defined previously mounted at the plug, and a dip tube passing through the connecting device and extending inside the container.
La présente invention sera mieux comprise à l ' étude de la description détaillée d 'un mode de réalisation pris à titre d' exemple nullement limitatif et illustré par les dessins annexés, sur lesquels :  The present invention will be better understood on studying the detailed description of an embodiment taken by way of nonlimiting example and illustrated by the appended drawings, in which:
- la figure 1 est une vue en coupe d'un conteneur comprenant un dispositif de raccord selon un exemple de réalisation,  FIG. 1 is a sectional view of a container comprising a coupling device according to an exemplary embodiment;
- la figure 2 est une vue en coupe du dispositif de raccord de la figure 1 , et  FIG. 2 is a sectional view of the coupling device of FIG. 1, and
- la figure 3 est une vue de face du dispositif de raccord des figures 1 et 2.  - Figure 3 is a front view of the connecting device of Figures 1 and 2.
Sur la figure 1 est représenté dans une position supposée verticale un conteneur désigné par la référence numérique générale 10. Dans l ' application envisagée, le conteneur 10, d' axe 10a, est destiné au conditionnement d'un ou de produits P chimiques toxiques et/ou nocifs et/ou odorants et/ou inflammables . Le conteneur 10 peut bien entendu être utilisé pour le conditionnement d' autres types de produits chimiques ou non.  In FIG. 1 is represented in a supposed vertical position a container designated by the general numerical reference 10. In the intended application, the container 10, of axis 10a, is intended for the packaging of one or more toxic chemical products P and or harmful and / or odorous and / or flammable. The container 10 can of course be used for packaging other types of chemicals or not.
Le conteneur 10 comprend, au niveau de son extrémité supérieure, une bonde 12, un tube plongeur 14 s ' étendant à l ' intérieur du conteneur et hors dudit conteneur, et un dispositif 16 de raccord monté au niveau de la bonde 12 et à travers lequel s ' étend le tube plongeur 14. Comme cela sera décrit plus en détail par la suite, le dispositif 16 de raccord est prévu pour permettre le coulissement du tube plongeur 14 à l ' intérieur du conteneur 10 et le blocage en position dudit tube. Le tube plongeur 14 permet le remplissage et/ou la vidange du conteneur 10. The container 10 comprises, at its upper end, a bung 12, a dip tube 14 extending inside the container and out of said container, and a connecting device 16 mounted at the bung 12 and through which extends the plunger tube 14. As will be described in more detail later, the connecting device 16 is provided to allow the sliding of the plunger tube 14 inside the container 10 and the locking in position of said tube. The plunger tube 14 allows the filling and / or emptying of the container 10.
Le conteneur 10 comprend également, au niveau de son extrémité supérieure, une bonde additionnelle (non représentée) prévue pour l'équilibrage de la pression lors du remplissage ou la vidange du conteneur. Cette bonde additionnelle peut être équipée d'un simple filtre à odeur ou d'un adsorbeur de gaz, ou encore d'un flexible raccordé à une pompe ou à un compresseur de sorte à pouvoir créer la pression ou la dépression nécessaire à l'intérieur du conteneur pour assurer la vidange ou le remplissage, respectivement.  The container 10 also comprises, at its upper end, an additional bung (not shown) provided for balancing the pressure during filling or emptying the container. This additional bung can be equipped with a simple odor filter or a gas adsorber, or a hose connected to a pump or a compressor so as to create the necessary pressure or depression inside. container to empty or refill, respectively.
Comme illustré plus visiblement aux figures 2 et 3 , le dispositif 16 de raccord comprend un corps 1 8 , d' axe 1 8 a, un écrou 20 de serrage monté sur le corps, une bague 22 de compression montée axialement entre le corps et l ' écrou de serrage, et un bouchon d' obturation 24 pour la fermeture de la bonde du conteneur.  As more clearly illustrated in FIGS. 2 and 3, the connecting device 16 comprises a body 1 8, of axis 1 8 a, a clamping nut 20 mounted on the body, a compression ring 22 mounted axially between the body and the body. clamping nut, and a closure plug 24 for closing the bung of the container.
Le corps 1 8 comprend un alésage 26 traversant axialement de part en part ledit corps pour le passage du tube plongeur. L ' alésage 26 est constitué par une portion cylindrique 26a coaxial à l ' axe 1 8a et s ' étendant axialement à partir de l ' extrémité inférieure du corps 1 8 , et par une portion tronconique 26b prolongeant ladite portion cylindrique et s ' évasant vers l ' extérieur. La portion tronconique 26b débouche au niveau de l ' extrémité supérieure du corps 1 8. Le corps 1 8 comprend une surface extérieure 28 sur laquelle est ménagé, à partir d'une extrémité supérieure, un premier filet (non référencé) pour la fixation et le vissage de l ' écrou 20 de serrage. Dans l ' exemple de réalisation illustré, le corps 1 8 présente une forme générale tubulaire. En variante, le corps 1 8 pourrait avoir une forme coudée.  The body 1 8 comprises a bore 26 passing axially through said body for the passage of the plunger tube. The bore 26 is constituted by a cylindrical portion 26a coaxial with the axis 1 8a and extending axially from the lower end of the body 1 8, and by a frustoconical portion 26b extending said cylindrical portion and flaring towards outside. The frustoconical portion 26b opens at the upper end of the body 1 8. The body 1 8 comprises an outer surface 28 on which is formed, from an upper end, a first thread (not referenced) for fixing and tightening the tightening nut. In the exemplary embodiment illustrated, the body 1 8 has a generally tubular shape. Alternatively, the body 1 8 could have a bent shape.
L ' écrou 20 de serrage comprend une partie de serrage 30 axiale annulaire comprenant intérieurement un filet (non référencé) en prise avec le filet du corps 1 8. La partie de serrage 30 comprend extérieurement six pans de manière à permettre le serrage de l ' écrou 20 avec une clé. La partie de serrage 30 est prolongée, à une extrémité axiale située du côté opposé au corps 1 8 , par une paroi radiale 32 comprenant une ouverture 34 traversante pour le passage du tube plongeur 14 et coaxial à l ' axe 1 8a. L ' écrou 20 et le corps 1 8 délimitent un espace axial à l ' intérieur duquel est entièrement montée la bague 22 de compression. The clamping nut 20 comprises an annular axial clamping portion 30 internally comprising a thread (not referenced) engaged with the thread of the body 1 8. The clamping portion 30 comprises externally hexagonally arranged to allow clamping of the nut 20 with a wrench. The clamping portion 30 is extended at one end axial located on the opposite side to the body 1 8, by a radial wall 32 comprising a through opening 34 for the passage of the plunger tube 14 and coaxial with the axis 1 8a. The nut 20 and the body 1 8 delimit an axial space inside which is completely mounted the compression ring 22.
La bague 22 de compression annulaire est avantageusement réalisée en une seule pièce par moulage d'une matière plastique synthétique, par exemp le du PTFE. La bague 22 de compression est déformable élastiquement. La bague 22 comprend une portion de centrage 36 annulaire et une portion de retenue 38 annulaire prolongeant axialement ladite portion de centrage . La portion de centrage 36 vient se centrer radialement à l' intérieur de la partie de serrage 30 de l' écrou et est monté axialement en appui contre la paro i radiale 32 dudit écrou. La portion de retenue 38 est montée en partie à l' intérieur de la portion tronconique 26b de l ' alésage du corps 1 8 et vient en appui contre ladite portion. La portion de retenue 38 présente une surface extérieure 40 tronconique sensiblement en concordance de forme avec la portion tronconique 26b de l ' alésage. La surface extérieure 40 est en contact contre ladite portion tronconique 26b .  The annular compression ring 22 is advantageously made in one piece by molding a synthetic plastic material, for example PTFE. The compression ring 22 is elastically deformable. The ring 22 comprises an annular centering portion 36 and an annular retaining portion 38 axially extending said centering portion. The centering portion 36 is centered radially inside the clamping part 30 of the nut and is mounted axially in abutment against the radial wall 32 of said nut. The retaining portion 38 is mounted partly inside the frustoconical portion 26b of the bore of the body 1 8 and bears against said portion. The retaining portion 38 has a frustoconical outer surface 40 substantially in register with the frustoconical portion 26b of the bore. The outer surface 40 is in contact against said frustoconical portion 26b.
La bague 22 de compression comprend une surface intérieure 42 prévue pour venir en contact contre la surface extérieure du tube plongeur. La surface intérieure 42 est opposée dans le sens radial à la surface extérieure 40 tronconique. La surface intérieure 42 forme l ' alésage de la bague de compression coaxial à l ' axe 1 8 a et qui s ' étend le long des portions de centrage 36 et de retenue 38. La surface intérieure 42 est annulaire, i. e. continue dans le sens circonférentiel. Comme cela sera décrit plus en détail par la suite, lors du vissage de l ' écrou 20 sur le corps 1 8, la so llicitation axiale exercée par l ' écrou sur la bague 22 de compression permet à ladite bague de comprimer radialement la surface extérieure du tube plongeur 14 et d'obtenir le blo cage axial du tube.  The compression ring 22 includes an inner surface 42 for engaging the outer surface of the dip tube. The inner surface 42 is radially opposed to the frustoconical outer surface 40. The inner surface 42 forms the bore of the compression ring coaxial with the axis 18a and extends along the centering and retaining portions 38. The inner surface 42 is annular, i. e. continues in the circumferential direction. As will be described in more detail later, when the nut 20 is screwed onto the body 18, the axial action exerted by the nut on the compression ring 22 allows said ring to compress the outer surface radially. of the plunger tube 14 and to obtain axial locking of the tube.
Le bouchon 24 d'obturation est monté par vissage sur la surface extérieure 28 du corps axialement du côté opposé à l' écrou 20 de serrage. A cet effet, un second filet (non référencé) est ménagé sur la surface extérieure 28 du corps 1 8 et est en prise avec un filet (non référencé) du bouchon 24. Le bouchon 24 permet l 'obturation de la bonde 12 (figure 1 ) du conteneur. Dans l ' exemple de réalisation illustré, le bouchon 24 présente une forme en coupelle. Le bouchon 24 comprend une paroi radiale 42 comprenant un alésage fileté venant se visser sur le corps 1 8 et une portion axiale 44 prolongeant un bord de grand diamètre de ladite portion radiale. La portion axiale 44 comprend, sur sa surface extérieure, un filet (non référencé) prévu pour coopérer avec le filetage de la bonde 12 afin d' obtenir la fixation du dispositif 16 sur le conteneur 10 associé. The closure cap 24 is screwed on the outer surface 28 of the body axially on the opposite side to the clamping nut 20. For this purpose, a second net (not referenced) is provided on the outer surface 28 of the body 1 8 and is engaged with a thread (not referenced) of the plug 24. The plug 24 allows the closure of the bung 12 (Figure 1) of the container. In the illustrated embodiment, the plug 24 has a cup shape. The plug 24 comprises a radial wall 42 comprising a threaded bore screwed onto the body 18 and an axial portion 44 extending a large diameter edge of said radial portion. The axial portion 44 comprises, on its outer surface, a thread (not referenced) provided to cooperate with the thread of the bung 12 in order to obtain the attachment of the device 16 on the associated container 10.
Après fixation du dispositif 16 sur le conteneur 1 0, on procède de la manière suivante pour introduire le tube plongeur 14 à l ' intérieur du dispositif, puis pour réaliser le réglage en hauteur et le blocage dudit tube.  After attachment of the device 16 to the container 1 0, the procedure is as follows to introduce the dip tube 14 inside the device, then to achieve height adjustment and blocking said tube.
Dans une première étape, on dévisse légèrement l ' écrou 20 de sorte à ce que la bague 22 de compression ne soit pas so llicitée axialement par ledit écrou. Le filet de l ' écrou 20 reste en prise avec le filet du corps 1 8. Ensuite, lors d'une seconde étape, on introduit le tube plongeur 14 à l ' intérieur de l 'ouverture 34 de l ' écrou, de la surface intérieure 42 de la bague de compression et de l ' alésage 26 du corps . Le tube plongeur 14 coulisse à travers le dispositif 16 de raccordement et à l ' intérieur du conteneur 10 jusqu ' à ce que l ' extrémité inférieure dudit tube atteigne la position souhaitée, par exemple en appui ou à très faible distance axiale du fond du conteneur.  In a first step, the nut 20 is slightly unscrewed so that the compression ring 22 is not axially caused by said nut. The thread of the nut 20 remains in engagement with the thread of the body 1 8. Then, in a second step, the dip tube 14 is inserted inside the opening 34 of the nut, the surface inner 42 of the compression ring and the bore 26 of the body. The plunger tube 14 slides through the connecting device 16 and inside the container 10 until the lower end of said tube reaches the desired position, for example in support or at a very short axial distance from the bottom of the container. .
Dans une troisième étape, on visse l ' écrou 20 de serrage sur le corps 1 8 de sorte à obtenir un rapprochement axial de la paroi radiale 32 de l ' écrou et du corps 1 8. Ce rapprochement axial de l ' écrou 20 par rapport au corps 1 8 provoque le déplacement axial de la bague 22 de compression en direction du corps 1 8 et contre la portion tronconique 26b de l ' alésage dudit écrou, et une déformation radiale vers l' intérieur de la portion de retenue 38 de la bague par l 'intermédiaire de ladite portion tronconique 26b . La portion de retenue 38 de la bague de compression se déforme radialement vers la surface extérieure du tube p longeur 14 et vient comprimer radialement ladite surface. La surface intérieure 42 de la bague de compression vient, au moins sur une partie de sa longueur, radialement en contact contre la surface extérieure du tube plongeur 14 et serre radialement ladite surface. On obtient ainsi le blocage axial du tube plongeur 14 relativement au dispositif 16 de raccord par coincement dudit tube par la bague 22 de compression. In a third step, the tightening nut 20 is screwed onto the body 1 8 so as to obtain an axial approximation of the radial wall 32 of the nut and the body 1 8. This axial approximation of the nut 20 relative to to the body 1 8 causes the axial displacement of the compression ring 22 towards the body 1 8 and against the frustoconical portion 26b of the bore of said nut, and a radial deformation towards the inside of the retaining portion 38 of the ring via said frustoconical portion 26b. The retaining portion 38 of the compression ring deforms radially towards the outer surface of the tube p length 14 and compresses radially said area. The inner surface 42 of the compression ring comes, at least over part of its length, radially in contact against the outer surface of the plunger tube 14 and radially clamps said surface. This results in the axial locking of the plunger tube 14 relative to the connecting device 16 by jamming said tube by the compression ring 22.
Dans l ' exemple de réalisation illustré, l ' écrou 20 est vissé sur la surface extérieure du corps 1 8. En variante, il est possible de prévoir un vissage de l ' écrou à l 'intérieur du corps 1 8. Toutefois, avec une telle conception, il est nécessaire de prévoir une dimension axiale plus importante pour la bague 22 de compression. Dans une autre variante d' exécution, il est possible de prévoir une bague de compression entièrement conique et/ou de prévoir sur la surface intérieure 42 de contact des dents en saillie radiale vers l ' intérieur visant à favoriser l ' accroche de la bague sur la surface extérieure du tuyau.  In the illustrated embodiment, the nut 20 is screwed onto the outer surface of the body 1 8. Alternatively, it is possible to provide a screwing of the nut inside the body 1 8. However, with a such a design, it is necessary to provide a larger axial dimension for the compression ring 22. In another variant embodiment, it is possible to provide a fully conical compression ring and / or to provide radially inwardly projecting teeth on the inner surface 42 of the contact, in order to promote the grip of the ring on the inside. the outer surface of the pipe.
Dans l ' exemple de réalisation illustré, la déformation radiale de la bague 22 de compression permettant le blo cage axial du tube plongeur 14 est obtenue grâce au déplacement axial de l ' écrou 20 et de bague 22 de compression, et à la coopération de la portion de retenue 38 de ladite bague avec la portion tronconique 26b de l ' alésage du corps. La bague 22 de compression coopère donc à la fois avec l ' écrou 20 et le corps 1 8 pour obtenir le serrage radial du tube plongeur 14.  In the exemplary embodiment illustrated, the radial deformation of the compression ring 22 allowing the axial locking of the plunger tube 14 is obtained by virtue of the axial displacement of the nut 20 and the compression ring 22, and to the cooperation of the retaining portion 38 of said ring with the frustoconical portion 26b of the bore of the body. The compression ring 22 thus cooperates with both the nut 20 and the body 1 8 to obtain the radial clamping of the plunger tube 14.
Dans une autre variante de réalisation, il est possible de monter la portion de centrage 36 de la bague de compression axialement en appui contre l ' extrémité supérieure du corps 1 8 et de prévoir sur la paroi radiale 32 de l ' écrou 20 une ouverture 34 de forme tronconique apte à coopérer avec la partie de retenue 38 de la bague. Dans ces conditions, lors du rapprochement axial relatif de l ' écrou 20 et du corps 1 8 , le déplacement de l ' écrou provoque la déformation radiale vers l ' intérieur de la bague 22 de compression. Ainsi, lors du rapprochement axial relatif de l ' écrou 20 et du corps 1 8 , seul l ' écrou coopère avec la bague 22 de compression pour obtenir le blo cage axial du tube plongeur 14. Dans l ' exemple de réalisation illustré, le bouchon 24 d' obturation est monté de manière amovible sur le corps 1 8 par vissage . En variante, il est possible de fixer le bouchon 24 sur le corps 1 8 de manière indémontable, par exemple par soudage. Toutefois, le montage amovible du bouchon 24 est avantageux dans la mesure où des bouchons de différents diamètres peuvent alors être montés sur un même corps 1 8. Le diamètre du bouchon 24 est choisi en fonction du diamètre de la bonde du conteneur associé. Ainsi, il est possible d'utiliser un seul corps 1 8 , un seul écrou 20 et une seule bague 22 pour des conteneurs ayant des bondes de diamètres différents. Par ailleurs, le caractère élastique de la bague 22 de compression permet également une adaptabilité à différents diamètres de tubes plongeurs . In another variant embodiment, it is possible to mount the centering portion 36 of the compression ring axially bearing against the upper end of the body 1 8 and to provide on the radial wall 32 of the nut 20 an opening 34 frustoconical shape adapted to cooperate with the retaining portion 38 of the ring. Under these conditions, during the relative axial approximation of the nut 20 and the body 1 8, the displacement of the nut causes the radial deformation towards the inside of the compression ring 22. Thus, during the relative axial reconciliation of the nut 20 and the body 1 8, only the nut cooperates with the compression ring 22 to obtain the axial locking of the plunger tube 14. In the exemplary embodiment illustrated, the closure plug 24 is removably mounted on the body 1 8 by screwing. Alternatively, it is possible to fix the cap 24 on the body 1 8 in a manner that can not be dismantled, for example by welding. However, the removable mounting of the plug 24 is advantageous insofar as plugs of different diameters can then be mounted on the same body 1 8. The diameter of the plug 24 is chosen according to the diameter of the bung of the associated container. Thus, it is possible to use a single body 1 8, a single nut 20 and a single ring 22 for containers having bungs of different diameters. Furthermore, the elastic nature of the compression ring 22 also allows adaptability to different diameters of plunger tubes.
Grâce à l 'invention, on dispose d'un dispositif de raccord permettant de réaliser de façon aisée et rapide un réglage en hauteur du tube plongeur associé et un blocage dudit tube, et assurant une bonne étanchéité aux liquides et aux gaz.  Thanks to the invention, there is provided a coupling device for making easy and fast height adjustment of the associated dip tube and a blocking said tube, and ensuring a good seal to liquids and gases.
Le dispositif de raccord de l ' invention est particulièrement adapté pour le remplissage et la vidange de produits toxiques, et/ou nocifs et/ou odorants et/ou inflammables, en particulier aux produits chimiques liquides transportés et/ou stockés dans des conteneurs qui peuvent être remplis ou vidangés par application de pression ou de dépression. Le dispositif de raccord de l ' invention est particulièrement adapté aux produits phytosanitaires, notamment utilisés en agriculture de plein champ, en particulier aux fumigants, et plus particulièrement aux disulfures, par exemple le disulfure de diméthyle, aux halogénures, par exemple le bromure de méthyle, le 1 ,3 - dichloropropène ou la chloropicrine (C I3 C-NO2) , mais aussi le métam- sodium (CH3-NH-CS2 Na+), le métam-potassium (CH3-NH-CS2 ~K+) ou le tétrathiocarbonate de sodium (Na2C S4) , et le méthyl-isothiocyanate (MITC ou CH3-NC S) et les précurseurs de MITC, par exemple le Dazomet, seuls ou en mélanges de deux ou plusieurs d'entre eux en toutes proportions. The connecting device of the invention is particularly suitable for the filling and emptying of toxic and / or harmful and / or odorous and / or flammable products, in particular liquid chemicals transported and / or stored in containers which can be filled or drained by applying pressure or depression. The connecting device of the invention is particularly suitable for plant protection products, especially used in field agriculture, in particular fumigants, and more particularly to disulfides, for example dimethyl disulfide, with halides, for example methyl bromide. 1,3-dichloropropene or chloropicrin (CI 3 C-NO 2 ), but also metasodium (CH 3 -NH-CS 2 Na + ), metam potassium (CH 3 -NH-CS 2 ~ K + ) or sodium tetrathiocarbonate (Na 2 CS 4 ), and methyl isothiocyanate (MITC or CH 3 -NC 5) and precursors of MITC, for example Dazomet, alone or in mixtures of two or more of between them in all proportions.

Claims

REVENDICATIONS
1 . Dispositif de raccord de tube plongeur pour conteneur de conditionnement d'un produit, notamment d 'un produit chimique, caractérisé en ce qu' il comprend : 1. Plunger tube coupling device for a packaging container of a product, in particular a chemical product, characterized in that it comprises:
- un corps ( 1 8) pourvu d'un alésage traversant (26) pour le passage du tube plongeur,  - a body (1 8) provided with a through bore (26) for the passage of the dip tube,
- un moyen de serrage (20) monté sur le corps et pourvu d' une ouverture (34) pour le passage dudit tube plongeur, et  - a clamping means (20) mounted on the body and provided with an opening (34) for the passage of said dip tube, and
- une bague de compression (22) disposée axialement au moins en partie entre le corps et le moyen de serrage et comprenant une surface de contact (42) avec une surface extérieure du tube plongeur, ladite bague de compression coopérant avec le corps ( 1 8) et/ou le moyen de serrage (20) pour obtenir, lors d 'un rapprochement axial relatif dudit corps et dudit moyen de serrage, un déplacement radial vers l 'intérieur de ladite bague.  a compression ring (22) arranged axially at least partly between the body and the clamping means and comprising a contact surface (42) with an outer surface of the dip tube, said compression ring cooperating with the body (1 8 ) and / or the clamping means (20) to obtain, during a relative axial approximation of said body and of said clamping means, a radial displacement towards the inside of said ring.
2. Dispositif selon la revendication 1 , dans lequel le corps ( 1 8) et le moyen de serrage (20) délimitent un espace axial à l' intérieur duquel est logée la bague de compression (22) .  2. Device according to claim 1, wherein the body (1 8) and the clamping means (20) define an axial space inside which is housed the compression ring (22).
3. Dispositif selon la revendication 1 ou 2, dans lequel la surface de contact (42) de la bague de compression est continue dans le sens circonférentiel.  3. Device according to claim 1 or 2, wherein the contact surface (42) of the compression ring is continuous in the circumferential direction.
4. Dispositif selon l 'une quelconque des revendications précédentes, dans lequel le corps ( 1 8) ou le moyen de serrage (20) comprend une portion tronconique (26b) pour obtenir le déplacement radial vers l 'intérieur de la bague de compression (22) lors du rapprochement axial relatif du corps et du moyen de réglage.  4. Device according to any one of the preceding claims, in which the body (1 8) or the clamping means (20) comprises a frustoconical portion (26b) to obtain the radial displacement towards the inside of the compression ring ( 22) during the relative axial approximation of the body and the adjustment means.
5. Dispositif selon la revendication 4, dans lequel la bague de compression (22) comprend une surface extérieure (40) tronconique coopérant avec la portion tronconique (26b) du corps ou du moyen de serrage et opposée radialement à la surface de contact (42) .  5. Device according to claim 4, wherein the compression ring (22) comprises a frustoconical outer surface (40) cooperating with the frustoconical portion (26b) of the body or the clamping means and radially opposed to the contact surface (42). ).
6. Dispositif selon l 'une quelconque des revendications précédentes, dans lequel la bague de compression (22) comprend une portion de centrage (36) disposée à l 'intérieur du moyen de serrage (20) et une portion de retenue (38) prolongeant axialement ladite portion de centrage. 6. Device according to any one of the preceding claims, wherein the compression ring (22) comprises a centering portion (36) disposed inside the clamping means. (20) and a retaining portion (38) axially extending said centering portion.
7. Dispositif selon la revendication 6 dépendante de la revendication 5 , dans lequel la surface extérieure (40) tronconique de la bague de compression est ménagée sur la portion de retenue (38) .  7. Device according to claim 6 dependent on claim 5, wherein the frustoconical outer surface (40) of the compression ring is provided on the retaining portion (38).
8. Dispositif selon l 'une quelconque des revendications précédentes, dans lequel la bague de compression (22) est réalisée en matière synthétique, notamment en PTFE .  8. Device according to any one of the preceding claims, wherein the compression ring (22) is made of synthetic material, in particular PTFE.
9. Dispositif selon l 'une quelconque des revendications précédentes, dans lequel le moyen de serrage (20) est monté sur la surface extérieure du corps ( 1 8), notamment par vissage.  9. Device according to any one of the preceding claims, wherein the clamping means (20) is mounted on the outer surface of the body (1 8), in particular by screwing.
10. Dispositif selon l 'une quelconque des revendications précédentes, comprenant en outre un bouchon d' obturation (24) monté sur le corps ( 1 8) et destiné à obturer une bonde du conteneur de conditionnement associé.  10. Device according to any one of the preceding claims, further comprising a closure cap (24) mounted on the body (1 8) and for closing a bung of the associated packaging container.
1 1 . Dispositif selon la revendication 10, dans lequel le bouchon d' obturation (24) est monté sur la surface extérieure du corps ( 1 8), notamment par vissage.  1 1. Device according to claim 10, wherein the closure plug (24) is mounted on the outer surface of the body (1 8), in particular by screwing.
12. Dispositif selon la revendication 1 1 ou 12, dans lequel le bouchon d' obturation (24) comprend des moyens de fixation destinés à coopérer avec la bonde du conteneur de conditionnement.  12. Device according to claim 1 1 or 12, wherein the closure cap (24) comprises fastening means for cooperating with the bung of the conditioning container.
13. Conteneur de conditionnement contenant un produit, notamment un produit chimique, et comprenant au moins une bonde, un dispositif de raccord selon l 'une quelconque des revendications précédentes monté au niveau de la bonde, et un tube plongeur traversant le dispositif de raccord et s ' étendant à l ' intérieur du conteneur.  13. Packaging container containing a product, including a chemical product, and comprising at least one bung, a coupling device according to any one of the preceding claims mounted at the bung, and a dip tube passing through the connecting device and extending inside the container.
EP14710322.0A 2013-03-18 2014-03-17 Plunger tube connector for a container for packaging a product, particularly a chemical product Withdrawn EP2976291A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1352368A FR3003330B1 (en) 2013-03-18 2013-03-18 PLUNGER TUBE CONNECTION DEVICE FOR A PACKAGING CONTAINER OF A PRODUCT, IN PARTICULAR A CHEMICAL
PCT/EP2014/055324 WO2014147034A1 (en) 2013-03-18 2014-03-17 Plunger tube connector for a container for packaging a product, particularly a chemical product

Publications (1)

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EP2976291A1 true EP2976291A1 (en) 2016-01-27

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US (1) US20160280531A1 (en)
EP (1) EP2976291A1 (en)
JP (1) JP2016516645A (en)
KR (1) KR20150131323A (en)
CN (1) CN105189335A (en)
AU (1) AU2014234485B2 (en)
BR (1) BR112015020705A2 (en)
CL (1) CL2015002732A1 (en)
FR (1) FR3003330B1 (en)
IL (1) IL240974A0 (en)
MX (1) MX2015011776A (en)
PH (1) PH12015501884A1 (en)
WO (1) WO2014147034A1 (en)
ZA (1) ZA201507728B (en)

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ZA201507728B (en) 2017-05-31
CL2015002732A1 (en) 2016-03-11
BR112015020705A2 (en) 2017-07-18
PH12015501884B1 (en) 2015-12-07
JP2016516645A (en) 2016-06-09
PH12015501884A1 (en) 2015-12-07
IL240974A0 (en) 2015-11-30
MX2015011776A (en) 2015-12-01
FR3003330A1 (en) 2014-09-19
AU2014234485A1 (en) 2015-10-01
US20160280531A1 (en) 2016-09-29
CN105189335A (en) 2015-12-23
KR20150131323A (en) 2015-11-24
FR3003330B1 (en) 2015-07-17
AU2014234485B2 (en) 2016-11-10
WO2014147034A1 (en) 2014-09-25

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