WO2019228718A1

WO2019228718A1 - Tap comprising a dismountable spout

Info

Publication number: WO2019228718A1
Application number: PCT/EP2019/060692
Authority: WO
Inventors: Benjamin THURIN
Original assignee: D-Innovation
Priority date: 2018-05-29
Filing date: 2019-04-25
Publication date: 2019-12-05
Also published as: EP3802402B1; ES2926279T3; FR3081855B1; FR3081855A1; EP3802402A1

Abstract

The invention concerns a tap comprising: - a body (16) that has a bore (20) - a stopper (24) movable in translation between a first position, corresponding to the closed state of the tap, and a second position, corresponding to the open state of the tap, - a dismountable spout (26), - a coupling system (90), configured to link the stopper (24) and the spout (26), comprising a male part and a female part allowing them to be interlocked with each other in an interlocking direction, perpendicular to the axis (A20) of the bore (20), when the stopper (24) is in the first position, and to be immobilised relative to each other in the direction of movement (DD) of the stopper (24) when the male and female parts are coupled.

Description

Title of the invention: Faucet comprising a cannula

removable

[0001] [The present application relates to a valve comprising a removable cannula, more particularly adapted to take a sample of more or less charged liquid stored in a container. According to one application, such a faucet is used as a tasting faucet in the winery.

According to an embodiment known and described in the document

WO2017187028, a tasting tap comprises:

a body configured to attach to a port of a container having first and second parallel through holes,

a removable cannula having an end adapted to be inserted into the first hole of the body,

a control comprising a cylindrical portion pivotally mounted in the second hole of the body, a handle at a first end of the cylindrical portion and a shutter at a second end of the cylindrical portion, said control being configured to occupy a closed state in which the shutter completely obstructs the first hole and an open state in which the shutter releases the first hole, the control maintaining the cannula pushed into the first hole in the open state.

Such a valve provides the following advantages:

- It limits the risk of contamination of the samples, the cannula can be disassembled and cleaned between two samples.

- It limits the risk of clogging by solid bodies in the liquid due to the pivoting movement of the shutter against the inner wall of the body,

- It is compatible with food liquids, all parts in contact with the liquid being stainless steel food type.

Despite these advantages, the valve described in WO2017187028 is not fully satisfactory for the following reasons: - The body has an outer diameter greater than 20 mm so that it can not, without modifying, equip existing tanks with a sleeve with an inner diameter of about 18.63 mm.

- The control can be maneuvered in the open state even in the absence of a cannula.

Document FR 2491 191 describes a valve for a flexible container. According to this document, the faucet includes:

a body comprising a through duct which has an inner end oriented towards the inside of the flexible container and an external end pointing towards the outside of the flexible container,

a plug positioned inside the flexible container, configured to fit at the inner end of the body conduit and having a central cavity facing outwardly of the flexible container, and

- A cannula, configured to be inserted into the conduit of the body, which has an inner end configured to be housed in the central cavity of the plug.

The cap comprises an outer peripheral edge configured to fit into a peripheral notch provided at the inner end of the conduit of the body. The cannula comprises at its inner end an outer peripheral edge configured to fit into a peripheral groove provided at the central cavity of the plug.

Even if the valve described in FR2491191 can be mounted in sleeves of small diameter, of the order of 18.63 mm, it is not fully satisfactory because some parts are made of plastic to allow the plug of power clipping into the conduit of the body or the cannula to clip into the central cavity of the cap. Finally, its operation is unreliable because the cap may not be clipped to the end of the cannula when the latter is put in place and fall inside the container, making it impossible to close the valve.

The present invention aims to remedy all or part of the disadvantages of the prior art. For this purpose, the invention relates to a valve for controlling the flow of a liquid from an internal zone of a container to an external zone, said valve comprising:

a body which has a bore making it possible to communicate the internal and external zones,

- A plug movable in translation, in a direction of movement, between a first position, corresponding to the closed state of the valve, wherein the plug completely closes the bore and a second position, corresponding to the open state of the valve, wherein the plug releases at least partially the bore, said plug having a first end facing the outer zone,

a cannula which extends between a first end and a second end which has a duct which communicates with the internal area when the cannula is connected to the stopper and the stopper is in the second position,

a coupling system, configured to connect the first ends of the cannula and the stopper, comprising a male part integral with one end among the first ends of the stopper and the cannula and a female part integral with the other end of the first ends of the cap and the cannula.

According to the invention, the male and female parts of the coupling system are configured to cooperate with each other and to allow interlocking of the male and female parts in one another in a direction of interlocking, perpendicular to the the axis of the bore of the body, when the plug (24) is in the first position corresponding to the closed state, as well as an immobilization of the male and female parts relative to each other in the direction of displacement when the male and female parts are coupled.

Such a valve provides the same advantages as the tasting tap described in WO2017187028, while allowing mounting in small section openings such as the valve described in FR2491191. Other features and advantages will become apparent from the description of the invention which follows, description given by way of example only, with reference to the appended drawings in which:

FIG. 1 is a longitudinal section of a valve in the closed state which illustrates an embodiment of the invention,

FIG. 2 is a longitudinal section of the tap visible in FIG. 1 in the open state,

FIG. 3 is a perspective view of a body of a valve, from a first end, which illustrates an embodiment of the invention,

FIG. 4 is a perspective view of the body visible in FIG. 3, from a second end,

FIG. 5 is a longitudinal section of the visible body in FIGS. 3 and 4,

FIG. 6 is a perspective view of a plug of a tap which illustrates an embodiment of the invention; FIG. 7 is a longitudinal section of the plug visible in FIG. 6;

FIG. 8 is a perspective view (with partial tearing) of the plug visible in FIGS. 6 and 7 mounted in the visible body in FIGS. 3 to 5;

FIG. 9 is a longitudinal section of a cannula of a tap which illustrates one embodiment of the invention,

FIGS. 10A and 10B are perspective views of the first ends of a plug and a cannula of a tap which illustrate an embodiment of the invention,

FIG. 11 is a perspective view of the cannula visible in FIG. 9 connected to the plug visible in FIGS. 6 and 7;

FIG. 12 is a cross section along the plane PT of FIG. 11 of a coupling system between a stopper and a cannula which illustrates one embodiment of the invention, and

FIGS. 13A to 13E are longitudinal sections illustrating the operating mode of the valve visible in FIGS. 1 and 2. Figures 1 and 2, there is shown in 10 a wall of a container which defines an inner zone Zint and an outer zone Zext and which has an orifice 12 for communicating the inner and outer zones Zint, Zext . This orifice 12 is delimited by a cylindrical wall having an axis of revolution A12 and opens out at an inner face 10int, oriented towards the inner zone Zint, and an outer face 10ext oriented towards the external zone Zext.

For the rest of the description, a longitudinal direction is a direction parallel to the axis of revolution A12 of the orifice 12. A longitudinal plane is a plane passing through the axis of revolution A12 of the orifice 12 A transverse plane is perpendicular to the axis of revolution A12 of the orifice 12.

According to one embodiment, the container comprises a sleeve which passes through the wall and which defines the orifice 12. As an indication and in a nonlimiting manner, the orifice 12 is a threaded bore and has a diameter of 1 mm. order 18.63 mm.

According to one application, the container is a vat containing wine, must a liquid food or other liquid more or less loaded.

The container is equipped with a valve 14 configured to occupy a closed state, visible in Figure 1, in which it prevents any liquid flow from the internal zone Zint to the outer zone Zext and an open state, visible on Figure 2, in which it allows a flow of liquid from the inner zone Zint to the outer zone Zext.

The valve 14 comprises:

a body 16 comprising a tubular central part 18 which has a through bore 20 of axis of revolution A20 (coincides with the axis of revolution A12 of the orifice 12 when the valve is mounted) and a peripheral wall 22 cylindrical and coaxial with the bore 20, said peripheral wall 22 being configured to cooperate with the orifice 12 so that the bore 20 allows to communicate the inner and outer zones Zint, Zext when the valve 14 is mounted in the orifice 12 of the wall 10 of the container,

a plug 24 movable in translation, in a direction of movement DD coincides with the axis of revolution A20, between a first position, corresponding to the closed state, in which it completely closes the bore 20 and a second position, corresponding to the open state, in which it releases, at least partially, the bore 20, said plug 24 having a first end 24.1 facing the outer zone Zext and a second end 24.2 facing the inner zone Zint ,

a tubular cannula 26 extending between a first end 26.1 configured to be connected to the first end 24.1 of the stopper 24 and a second end 26.2, said cannula comprising a duct 28 which opens at said second end and which communicates with the inner zone Zint when the cannula 26 is connected to the plug 24 and the latter is in the second position corresponding to the open state.

According to an embodiment shown in Figures 3 to 5, the central portion 18 comprises a first transverse face 18.1 oriented towards the inner zone Zint and a second transverse face 18.2 oriented towards the outer zone Zext. The bore 20 has a chamfer 30 at each of its ends opening at the first and second transverse faces 18.1, 18.2.

The valve 14 comprises a connecting system for connecting the body 16 and the wall 10 of the container, and a sealing system between the body 16 and the wall 10 of the container. According to one configuration, the connection system comprises a thread 32 at the level of the peripheral wall 22, configured to screw into the threaded bore of the orifice 12, and a shoulder 34, at the level of the second transverse face 18.2, configured to bear against the outer face 10ext of the wall 10. The sealing system has a groove 36 at the peripheral wall 22, adjacent to the shoulder 34, and a seal 38 (referenced in Figure 1) positioned in the groove 36, configured to be compressed between the body 16 and the orifice 12 of the wall 10 of the container.

Of course, the invention is not limited to these embodiments for the connection and sealing systems between the orifice 12 of the wall 10 and the valve 14. Similarly, the peripheral wall 22 of the body 16 may not be cylindrical.

According to a characteristic of the invention, the body 16 comprises an internal groove 40, which extends from the first transverse face 18.1 of the central portion 18, and / or an external groove 42 which extends to from the second transverse face 18.2. According to one embodiment, the inner groove 40 is a straight half-tube and has an end face 44 positioned in a transverse plane, two side edges 46, 46 'positioned in a longitudinal plane, a cylindrical inner face 48 and oriented towards the axis of revolution A20, and an outer face 50 opposite and coaxial with the inner face 48.

The inner face 48 has a first section 48.1, adjacent to the end face 44, which has a diameter substantially equal to that of the bore 20 of the central portion 18, and a second section 48.2, adjacent to the first face. 18.1, which has a diameter greater than that of the bore 20 of the central portion 18. The first section 48.1 is configured to guide the plug 24, the second section 48.2 limiting the friction between the body 16 and the plug 24.

The internal groove 40 comprises a pin 52 positioned at the inner face 48, more precisely at its first section 48.1 whose function will be detailed later.

According to one embodiment, the outer channel 42 is a portion of a straight tube and has an end face 54 positioned in a transverse plane, two side edges 56, 56 'parallel to a longitudinal plane, a cylindrical inner face 58 and oriented towards the axis of revolution A20, and an outer face 60 opposite and coaxial with the inner face 58. The inner face 58 has a diameter greater than that of the bore 20 of the central portion 18.

According to the embodiment shown in Figures 3 to 5, the outer channel 42 corresponds to a portion slightly smaller than a half-tube. Alternatively, the outer channel 42 may be in the form of a half-tube. In all cases, the external groove 42 is positioned in the lower part of the bore 20 and has an inner face 58 separated from the axis of revolution A20 of the bore 20 by a distance slightly greater than the diameter of the bore. bore 20.

According to a configuration, the inner and outer grooves 40, 42 are arranged on the same side of a longitudinal plane PL, as shown in FIG. 5.

In a configuration visible in Figure 9, the cannula 26 has two sections, a first straight section 62 adjacent its first end 26.1 and a second curved section 64 adjacent to its second end 26.2. The first rectilinear section 62 of the cannula 26 has an outer diameter substantially equal to that of the bore 20 of the body 16, the mounting clearance near.

The valve 14 comprises a sealing system between the body 16 and the cannula 26 when the latter is inserted into the bore 20 of the body 16. According to one embodiment, this sealing system comprises a groove 66 provided at the outer surface of the first rectilinear section 62 of the cannula 26, near the first end 26.1 of the cannula 26, and a seal 68 positioned in the groove 66, configured to be compressed between the body 16 and the cannula 26 .

According to an embodiment visible in Figures 6 and 7, the plug 24 has an approximately cylindrical shape and has a first section 70.1, close to the first end 24.1 of the plug 24, which has an outer diameter substantially equal to that the bore 20 of the body 16, the mounting clearance, and a second section 70.2 which has a first flat 72 parallel to the longitudinal direction. This first flat 72 and the pin 52 of the internal channel 40 are configured to allow the plug 24 to translate in the direction of movement DD, between the first and second positions, when the pin coincides with the first flat 72. The first flat 72 includes a first stop 73.1, against which the pin 52 is supported when the plug 24 is in the first position, and a second stop 73.2 against which the pin 52 bears when the plug 24 is in the second position. This second stop 73.2 is materialized by a shoulder.

In addition to the first flat 72, the plug 24 comprises a groove

74, configured to house the pin 52, positioned near the second end 24.2 of the plug 24, which has two flanks 76, 76 'positioned in two transverse planes and which extends over the entire periphery of the plug 24. According to one embodiment embodiment, the plug 24 has, at its second end 24.2, a diameter reduction defined by a shoulder 78 which forms the first flank 76 of the groove 74. A screw 80, screwed into a threaded hole 82 provided at the second end 24.2 of the plug 24 has a head 84, one face of which is pressed against the transverse end face plug 24, forms the second flank 76 'of the groove 74. Other solutions could be envisaged to form the groove 74. The head 84 also forms the first stop 73.1 which materializes the first position of the plug 24.

The pin 52 and the groove 74 are positioned to allow the plug 24 to pivot on itself in the first position corresponding to the closed state.

Of course, the invention is not limited to this embodiment. Thus, the body 16 and the plug 24 have shapes which cooperate so as to limit the translation movement of the plug 24 relative to the body 16 between first and second stops 73.1, 73.2 which respectively correspond to the first and second positions. According to a simplified variant, one of the parts among the body 16 and the plug 24 comprises a recessed shape which extends in a direction parallel to the axis of revolution A20 of the bore 20 and which has, at a first end, the first stop 73.1 and, at a second end, the second stop 73.2, the other part of the body 16 and the plug 24 having a projecting shape configured to move in the recessed form. Preferably, the hollow shape of the body 16 or the plug 24 comprises, at its first end, an extension which extends in a direction perpendicular to the axis of revolution A20 of the bore 20 and which allows immobilize the plug 24 in the first position when the projecting shape of the plug 24 or the body 16 is positioned in this extension.

The valve 14 comprises a sealing system between the body 16 and the plug 24 when the latter is in the first position, corresponding to the closed state. According to one embodiment, this sealing system comprises a groove 86 provided at the first section 70.1, near the first end 24.1 of the plug 24, and a seal 88 positioned in the groove 86, configured to be compressed between the body 16 and the stopper 24.

According to another feature, the valve comprises a coupling system 90 configured to connect the plug 24 and the cannula 26.

The coupling system 90 comprises a male portion 90.1, visible in Figure 10A, secured to the first end 24.1 of the plug 24 (or the first end 26.1 of the cannula 26) and a female portion 90.2, visible on the 10B, secured to the first end 26.1 of the cannula 26 (or the first end 24.1 of the plug 24).

The male and female parts 90.1 and 90.2 are configured to cooperate with each other and allow interlocking of the male part 90.1 in the female part 90.2 in a direction of interlocking DE, perpendicular to the axis of revolution

A20 of the bore 20 of the body 16, when the plug 24 is in the first position corresponding to the closed state, and an immobilization of the male and female parts 90.1, 90.2 relative to each other in the direction of displacement DD, when the stopper 24 and the cannula 26 move in the direction of displacement DD, in the direction of insertion of the cannula 26 into the bore 20 of the body 16 or in the direction of removal of the cannula 26 of the bore 20.

As illustrated in Figure 2, the first end 24.1 of the plug 24 has a transverse end face 24F and the first end 26.1 of the cannula 26 has a transverse end face 26F.

In a first configuration visible in Figure 9, the pipe 28 opens at the first end 26.1 of the cannula 26. In addition, the first end 24.1 of the plug 24 comprises a recess 92 connecting the transverse end face 24F of the plug 24 and the peripheral surface of the first section 70.1 of the plug 24 which extends the pipe 28. At the transverse end face 24F, the recess 92 has a U-shaped section which has a curved portion centered relative to the contour of the transverse end face 24F and two branches spaced a distance substantially equal to the diameter of the pipe 28 of the canula 26. At the peripheral surface of the first section 70.1, the recess 92 also has a U-shaped section open in the direction of the transverse end face 24F of the plug 24. It is positioned diametrically opposite to the first flat part 72, as illustrated in detail in FIG. Figure 7.

Of course, other geometries are possible for the recess 92 which must promote the flow of liquid from the inner zone Zint to the pipe 28 of the cannula 26.

According to another configuration, the pipe 28 comprises an orifice which opens at the outer surface of the first rectilinear section 62. positioned in the inner zone Zint, outside the bore 20 of the body 16. According to this configuration, the first end 24.1 of the stopper 24 does not include a recess 92.

Whatever the configuration, the plug 24 and / or the cannula 26 comprise an orifice opening into the internal zone Zint, when the plug is in the second position corresponding to the open state, and communicating with the pipe 28 of the cannula 26.

An embodiment of the coupling system 90 is visible in Figures 8, 10A, 10B and 12. The male portion 90.1 comprises an outer groove 94, spaced from the transverse end face 24F of the first end 24.1 of the cap 24, which delimits with the transverse end face 24F an outer flange 96. In addition, the bottom of the outer groove 94 and / or the outer flange 96 have at least one flat. According to an embodiment visible in FIG. 12, the bottom of the outer groove 94 and the outer collar 96 each have two flats 98, 98 ', 100, 100' diametrically opposite, parallel to each other and perpendicular to the first flat portion 72.

When the plug 24 comprises a recess 92, the outer groove 94 and the outer flange 96 have a U shape. In the absence of recess 92, the outer groove 94 and the outer flange 96 may be peripheral and s extend over the entire periphery of the plug 24.

In addition, the female portion 90.2 comprises a radial cut 102 connecting the pipe 28 and the outer surface of the first section 62 of the cannula 26 for the insertion of the male portion 90.1. This cutout 102 is oriented diametrically opposite to the second curved section 64, as illustrated in FIG. 9. In addition, the female portion 90.2 comprises an internal groove 104 spaced from the transverse end face 26F of the first end 26.1 of the cannula 26. which delimits with the transverse end face 26F an inner flange 106.

The outer and inner grooves 94, 104 are dimensioned so as to respectively accommodate the inner and outer flanges 106, 96 when the male and female parts 90.1, 90.2 are coupled. According to a simplified variant, the female portion 90.2 comprises a housing, configured to at least partially accommodate the male portion 90.1, which has a radial cutout 102 to allow insertion of the male portion 90.1 in the direction of radial introduction at least one of the male and female portions 90.1, 90.2 having at least one projecting shape configured to seat in a recessed shape of the other one of the male and female portions 90.1, 90.2 so as to immobilizing the male and female parts 90.1, 90.2 relative to each other in the direction of displacement DD when the male and female parts 90.1, 90.2 are coupled, namely when the male part 90.1 is positioned in the housing of the part female 90.2.

Of course, the invention is not limited to these forms to obtain a coupling between the cannula 26 and the stopper 24.

The bottom of the inner groove 104 and / or the inner flange 106 have at least one flat that cooperates with the flat or the flat (s) of the bottom of the outer groove 94 and / or the outer flange 96 in order to immobilize the cannula 26 and the cap in rotation relative to each other. According to an embodiment visible in FIG. 12, the bottom of the inner groove 104 and / or the inner flange 106 each have two flats 108, 108 ', 110, 110' diametrically opposite, parallel to each other and to the plane of curvature of the second curved section 64, said flats 108, 108 ', 110, 110' provided at the female part being configured to cooperate with the flats 98, 98 ', 100, 100' of the male portion 90.1. this arrangement makes it possible to immobilize the cannula 26 in rotation with respect to the stopper 24 when these two elements are coupled together. Thus, when they are coupled, the pivoting of the cannula 26 on itself causes the cap 24 to pivot on itself. According to a configuration visible in FIG. 2, the second curved section 64 is oriented in the same direction as the first flat portion 72 of the plug 24.

Of course, the invention is not limited to these forms to obtain immobilization in rotation of the cannula 26 relative to the plug 24. Whatever the embodiment, the male and female parts 90.1, 90.2 present forms that cooperate to immobilize in rotation the cannula 26 and the cap 24 relative to each other when the male and female parts 90.1, 90.2 are coupled. According to a simplified variant, the male part 90.1 comprises at less a flat which cooperates with at least one flat part of the female part, when the male and female parts 90.1, 90.2 are coupled, so as to immobilize in rotation the cannula 26 and the stopper 24 relative to each other.

Whatever the embodiment, the length of the plug 24, the position of the groove 74, the position of the pin 52 on the inner channel 40 are determined so that the male part 90.1 (or the female part) 90.2) is positioned outside the bore 20, in the external zone Zext, when the plug 24 is in the first position corresponding to the closed state, as illustrated in FIG. 1. In this first position, the male part 90.1 plug 24 is positioned in the external channel 42.

The seals 68 88, respectively mounted on the cannula 26 and the plug 24, are spaced a distance less than the length of the bore 20 of the body 16 between the chamfers 30 so that at least one two joints 68, 88 is in contact with the bore 20 of the body 16. In a variant, the valve 14 may comprise only one seal positioned in a groove provided at the bore 20, downstream (according to FIG. direction of the liquid flow) of the orifice of the stopper 24 and / or the cannula 26 which opens into the internal zone Zint and which communicates with the duct 28 of the cannula 26.

With the exception of seals 38, 68, 88, all other parts of the valve 14 are made of a material compatible with food products, such as stainless steel food type.

The operating principle of the valve 14 is now described with reference to Figures 1 to 2, 13A to 13E.

When the valve 14 is in the closed state, the plug 24 is positioned in the first position and completely closes the bore 20 of the body 16, as shown in Figure 1. The male portion 90.1 of the plug 24 is positioned outside the bore 20 of the body, in the outer groove 42. The pin 52 of the inner channel 40 is positioned in the groove 74 of the plug 24 and is not disposed to the right of the first flat 72 of the plug 24. The curved portion of the U-shape of the outer flange 96 of the male portion 90.1 is oriented upwards

The first flat 72 is not disposed to the right of the pin 52 of the inner groove 40, the plug 24 is locked in the first position corresponding to the closed state and can not translate in the second position corresponding to the open state. Given the shape of the first end 24.1 of the cap 24, it is very difficult, if not impossible, to rotate the cap 24 on itself to subsequently translate in the second position corresponding to the open state. This configuration makes it possible to obtain a safe operation, since the plug 24 can not be opened because of a false maneuver.

As illustrated in Figure 13A, the cannula 26 is positioned so that the cutout 102 of the female part 90.2 is oriented downwards towards the male portion 90.1 of the plug 24. The second curved section 64 is oriented towards the top.

As illustrated in FIG. 13B, the cannula 26 is translated in the interlocking direction DE until the male part 90.1 of the stopper 24 is positioned in the female part 90.2 of the cannula 26.

The cannula 26 is pivoted on itself, around the axis of revolution A20 of the bore 20, taking in hand the second curved section 64 and orienting it downwards, as shown in FIG. 13C. This pivoting movement of the cannula 26 causes the cap 24 to pivot through the coupling system 90. Consequently, the cannula 26 can no longer be uncoupled from the stopper 24, without a new pivoting movement, since its inner collar 106 is blocked in the outer groove 94 of the plug 24 by the external channel 42.

The pin 52 of the internal groove 40 being at the right of the first flat 72, the cannula 26 can be pushed inside the bore 20 so as to translate, in the direction of displacement DD, the plug 24 of the first position to the second position, as shown in Figure 13D.

This translational movement is operated until the pin 52 of the inner channel 40 is in contact with the second stop 73.2 embodying the second position of the plug 24 and corresponding to the open state of the valve 14, as illustrated. in FIGS. 13E and 2. The liquid can then flow from the internal zone Zint to the external zone Zext via the cannula 26. To stop the flow, the cannula 26 is pulled out of the bore 20. To disassemble the cannula 26, the previously described steps are reproduced in the reverse order.

The invention provides the following advantages:

The valve 14 can be mounted on existing containers provided with an orifice 12 with a small section, the body 16 having only one bore 20 through.

It provides a safe mode of operation, the cap 24 can not be opened inadvertently. In addition, the pin 52 and the second stop 73.2 prevent the drop of the plug 24 inside the container.

It is compatible with food products, the component parts (with the exception of seals) being made of stainless steel food type.

It provides a reliable mode of operation, the translational movement of the plug 24 and the cannula 26 during the transition to the closed state generating a shearing effect of any solid particles present at the plug orifice 24 and / or the cannula 26 which opens into the internal zone Zint when the plug 24 is in the second position corresponding to the open state and which communicates with the pipe 28 of the cannula 26.

Finally, it limits the risk of contamination of the samples, the cannula can be disassembled to be cleaned between two samples.

Claims

claims

[Claim 1] [Faucet for controlling the flow of liquid from an internal zone (Zint) of a container to an external zone (Zext), said valve comprising:

- a body (16) having a bore (20) for communicating the inner and outer zones (Zint, Zext),

- A plug (24) movable in translation, in a direction of displacement (DD), between a first position, corresponding to the closed state of the valve, wherein the plug (24) completely closes the bore (20) and a second position, corresponding to the open state of the valve, in which the plug (24) at least partially disengages the bore (20), said plug (24) having a first end (24.1) oriented towards the external zone (Zext) ,

a cannula (26) extending between a first end (26.1) and a second end (26.2), said cannula (26) having a duct (28) which communicates with the internal zone (Zint) when the cannula (26) ) is connected to the plug (24) and that the plug (24) is in the second position,

a coupling system (90), configured to connect the first ends (24.1, 26.1) of the plug (24) and of the cannula (26), comprising a male part (90.1) integral with one end of the first ends; (24.1, 26.1) of the plug (24) and the cannula (26) and a female part (90.2) integral with the other end of the first ends (24.1, 26.1) of the plug (24) and the cannula (26). )

characterized in that the male and female portions (90.1, 90.2) of the coupling system (90) are configured to cooperate with each other and to allow interlocking of the male and female portions (90.1, 90.2) within each other according to an interlocking direction (DE), perpendicular to the axis (A20) of the bore (20) of the body (16), when the plug (24) is in the first position corresponding to the closed state, and a immobilizing the male and female parts (90.1, 90.2) relative to each other in the direction of displacement (DD) when the male and female parts (90.1, 90.2) are coupled. [Claim 2] Tap according to claim 1, characterized in that the female part (90.2) comprises a housing, configured to at least partially accommodate the male part (90.1), which has a radial cutout (102) to allow insertion of the male part (90.1) according to the interlocking direction (DE), at least one of the male and female parts (90.1, 90.2) having at least one projecting shape configured to fit in a recessed form the other part of the male and female parts (90.1, 90.2) so as to immobilize the male and female parts (90.1,

90.2) relative to each other in the direction of movement (DD) when the male and female parts (90.1, 90.2) are coupled.

[Claim 3] Valve according to one of the preceding claims, characterized in that the male and female parts (90.1, 90.2) have shapes which cooperate to immobilize in rotation the cannula (26) and the plug (24). relative to each other when the male and female parts (90.1, 90.2) are coupled.

[Claim 4] Tap according to the preceding claim, characterized in that the male part (90.1) comprises at least one flat (98, 98 ', 100', 100 ') which cooperates with at least one flat (108, 108', 110, 110 ') of the female part (90.2), when the male and female parts 90.1, 90.2 are coupled, so as to immobilize in rotation the cannula 26 and the stopper 24 relative to each other.

[Claim 5] Valve according to one of the preceding claims, characterized in that the body (16) and the plug (24) have shapes that cooperate to limit the translational movement of the plug (24) relative to the body (16) between first and second stops (73.1,

73.2) which respectively correspond to the first and second positions.

[Claim 6] Tap according to the preceding claim, characterized in that one of the parts among the body (16) and the plug (24) comprises a recessed shape which extends in a direction parallel to the axis (A20 ) of the bore (20) and which has at a first end the first stop

(73.1) and at a second end the second stop (73.2), the other piece between the body (16) and the plug (24) having a protruding shape configured to move in the recessed form.

[Claim 7] Tap according to the preceding claim, characterized in that the recessed shape of the body (16) or the plug (24) comprises at its first end an extension which extends in a direction perpendicular to the axis (A20) of the bore (20) and which immobilizes the plug (24) in the first position when the projecting shape of the plug (24) or the body (16) is positioned in this extension. [Claim 8] Valve according to one of the preceding claims, characterized in that the body (16) comprises an inner groove (40) extending from a first transverse face (18.1) of the body facing the zone internal member (Zint), which is positioned in the lower part of the bore (20), which has a half-cylindrical inner face (48) of which a first section (48.1) has a diameter substantially equal to that of the bore (20) to guide the plug (24) and which has a pin (52) positioned at the inner face (48) and in that the plug (24) comprises a first flat (72) parallel to the axis (A20 ) of the bore (20) configured to accommodate the pin (52) of the inner channel (40), the first flat (72) comprising a first stop (73.1) against which the pin (52) bears when the plug ( 24) is in the first position and a second stop (73.2) against which the pin (52) p makes support when the plug (24) is in the second position.

[Claim 9] Tap according to the preceding claim, characterized in that the plug (24) comprises a groove (74), configured to accommodate the pin (52), which extends over the entire periphery of the plug (24), the pin (52) and groove (74) being positioned to allow the plug (24) to pivot on itself in the first position.

[Claim 10] Tap according to the preceding claim, characterized in that the cannula (26) comprises a curved section (64) oriented in the same direction as the first flat (72) of the plug (24) when the cannula (26) and the plug (24) are coupled. [Claim 1 1] Tap according to one of the preceding claims, characterized in that the body (16) comprises an outer channel (42) which extends from a second transverse face (18.2) of the body (16) oriented towards the outer zone (Zext), which is positioned in the lower part of the bore (20) and which has an inner face (58) separated from the axis

(A20) of the bore (20) a distance slightly greater than the diameter of the bore (20).