ES2747268T3 - Connection device for at least two vessels - Google Patents

Abstract

Connection device (1) having at least two substantially tubular device connections (3, 7) for a container respectively (5, 9), each container presenting a container connection (25, 27) whose opening is sealed by a wall drillable (11, 13), each connection of the device (3, 7) presenting a clamping device (41, 43) which is adapted to engage the connection of the container (25, 27) in a first position in which the connections of the device (3, 7) form a substantially hermetic connection of the container (5, 9) with the connection device (1), and each device connection (3, 7) has an opening device (15, 17, 41, 43) comprising a feed device (41, 43) and a separating element (15, 17), the opening device (15, 17, 41, 43) being connected to the connection of the device (3, 7) and adapted to allow rotary movement of the container connection (25, 27) relative to on with the connection of the device (1) that brings the perforable wall (11, 13) to the effective area of the separation element (15, 17) and moves it with respect to the latter in such a way that the perforable wall (11, 13 ) opens, so that at least two containers (5, 9) can be connected to the connection device (1) in the first position and by rotating the two containers (5, 9) the containers can be moved towards the connection device (1) and open, whereby the content of at least two containers (5, 9) can come into contact with each other, characterized in that the rotational movement of the two containers (5, 9) is directed the against each other and the separating element (15, 17) is integrally formed with the tubular part of the connection device (1) as a flat blade (15, 17) formed as lateral surfaces, which is located inside the connection of the device (3, 7) near the pierceable wall (11, 13) and axially aligned to point towards the opening of a container (5, 9) to allow the connecting device (1) to be manufactured by a mass production process, more particularly by injection molding.

Description

DESCRIPTION

Connection device for at least two vessels

Description

The present invention relates to a connection device according to the preambles of claims 1 and 6 with at least two connections of the device for containers. In addition, it deals with a set consisting of the connection device and the containers attached to it.

In many areas it is necessary to mix substances distributed in individual containers with each other, allowing the substances to interfere as little as possible with the environment during mixing. For example, parenteral nutrition is supplied in two components, each stored in a container for long-term storage. In the mixed state, denaturation inevitably takes place. Mixing of the components must necessarily be carried out under hygienic conditions and is therefore relatively expensive.

Another area is beverages, which are in two components and must be mixed before consumption. Conventionally, mixing takes place in a separate container, which is relatively cumbersome and, as the case may be, removal or cleaning of the additional container is necessary. With carbonated drinks a part of the carbonic acid is also lost, so the sparkling character of the drink is reduced.

Devices for connecting two containers, including arrangements for opening at least one of the containers are known for example from documents US-4,898,293, Us -A-2011/147395, DE-44 36 862 and US-A -2008/314775. Documents US-4,898,293 and DE-A-44 36 862 deal with complex structures that require great effort in the manufacturing process and mass production processes, not particularly accessible for plastics. According to US-2011/0147395, only a limited connection made by penetrating the bottom of the beverage can with a conical tube is established, for which the user must use force and skill, and sealing after penetration is not easily guaranteed. In the dispenser, according to US-2008/314775, two containers are interconnected, of which only one is closed by a diaphragm that is pierced by means of an internal opening device.

Document FR-A-2294937 describes a connection device in figure 4 according to the preamble of claim 1 and presents an ampoule for a 2-component injection material. In a variant, the component containers are connected through a threaded ring, which inside has a cylindrical separator. If the containers are screwed onto the ring, the separator separates a membrane over the entire circumference and is sealed with its outer surface against the interior of the respective container.

US 3,410,444 describes a connection device according to the preamble of claim 6.

Therefore, an object of the invention is to provide a device that is easier to manufacture and that connects sealed containers to each other and that in a simple way allows the opening of the container, after which effective mixing of the contents is possible. A further objective is to prevent loose parts of the container closure device from being produced by the opening process, mixing with the useful contents of the container.

Said devices are specified in claims 1 and 6. The other claims indicate preferred manufacturing models, as well as arrangements with the device and the containers attached thereto.

Essentially the connection device according to the invention enables a respective container to be attached to its connections, specifically initially in a first position where a watertight connection to the device has already occurred. The connections are further provided with means for moving the containers to a second position in which the containers are opened. Generally, the containers move in this case over the connections or within the connections, where they bump against separation elements, which pierce a closure seal (i.e. a perforable wall) of the container, and preferably section in the next movement. .

In a preferred simpler form, the device is in the general shape of a tube with double-sided receptacles for container openings. The container openings are threaded, the receptacles in the device are provided with corresponding complementary roses. Within the connections close to the wall and aligned axially with respect to the opening, there is a blade respectively, representing the aforementioned separating element. In this way a container can be slightly screwed on both ends, taking into account that the blades still do not contact the seals in the container openings. In addition, the opposite rotation of the container threads it further into the device, the blades go through the seal, severing it to a great extent. Thereafter, the contents of the two container bottles can come into contact with each other by mutual tilting, the respective mutual mixing occurring.

Obviously, this allows mixing of the contents of the containers that are attached to the device, without communicating with the environment or requiring an additional container. After mixing, the mixture can simply be removed from one or the other of the containers.

Components ready for pre-dosing, such as parenteral nutrition, are delivered ready-to-use in a preferred form in which the containers are already attached to the device in the first transport position. To avoid premature opening and mixing, at least the containers are connected to each other through a tubular connection, which also surrounds the device. The tubular connection is generally tear-off or removable. Preferably, it consists of a thin sheet, stable under transport conditions. To mix, it is broken with some force by turning the container against each other, or previously destroyed. At the same time, it serves as the first opening protection.

In a variant of the invention, according to claim 6, on the contrary, the connections of the container have an internal thread. The connection device has at least two connections that are substantially tubular and hollow parts, each with an external thread. The ends of this connection device 61 are designed to cut a seal or a membrane that closes the container. One end is cut at least partially obliquely to form a protruding segment that acts like a blade. In the simplest case, the end is completely oblique, preferably adapted to the pitch of the thread.

The invention will be explained on the basis of preferred manufacturing examples with reference to the figures., It is shown in:

FIG. 1 shows a longitudinal section through a connection device with containers in the closed state; Figure 2, a longitudinal section as shown in Figure 1, but with an open container.

Figure 3 a schematic representation of a manufacturing model suitable especially for beverages; figure 4 a section according to IV-IV in figure 1;

5 shows a longitudinal section through a connection device according to V-V in FIG. 1;

Figure 6 a section as in Figure 4 with an asymmetric tooth;

FIG. 7 shows a section similar to FIG. 1, manufacturing according to a second manufacturing example; Y

figure 8, a section like figure 7, modified manufacturing example.

Figure 9 isometric exploded view of a manufacturing model of a sealing cap; Y

Figure 10, a section through the parts of Figure 9.

Manufacturing example 1

The connecting device 1 is shown below by way of example in a manufacturing model that is designed to connect two containers. However, it is also conceivable to form the connection device 1 to join three, four or more containers, for example in the case of four containers in the form of four interconnected cross-shaped receptacles or of container-bearing elements.

Figure 1 shows a connection device 1 that is substantially circular in cylindrical shape and has a first support element 3 arranged on the left in the figure for a first container 5 and a second support element 7 arranged on the right in the figure for a second container 9. The containers 5, 9 are screwed into the supporting elements 3, 7 to the point that, although a substantially watertight connection with connection device 1 has already occurred, the seals 11, 13 are still at a distance secure the cutting blades or blades 15, 17 to avoid being damaged by them. In addition to the tightness, it is also required to screw to such an extent that the two containers or bottles 5, 9 are held together in a stable axial arrangement in this case.

From the first bottle 5 to the second bottle 9, the holding sleeve or holding sheet 19 extends around the arrangement. This is connected in a suitable way, for example by welding or gluing, at the connection points 21, 23 to the first container 5 and to the second container 9 respectively, so that they cannot be rotated against each other. other. The holding sheet 19 is suitably weakened in an appropriate manner, for example by a perforation not shown, or through a suitable design that allows the holding sheet 19 to be broken with sufficient force, such as when the container 5, 9 is rotated with respect to each other to open it. Therefore, the holding sheet 19 also serves to verify whether the two containers 5, 9 are unopened (not shown).

To open the two containers 5, 9 they are rotated against each other, first tearing off the holding sheet 19. Furthermore, the containers 5, 9 rotate simultaneously or one after the other in the connection device or the connection sleeve 1. In this In this case the seals 11, 13 contact the cutting blades 15, 17, which first pierce the seals 11, 13 and in the additional rotation of the bottles 5, 9 separate them perimeter from the bottle necks 25, 27.

Obviously, in this state, it is possible to be able to interconnect and mix the contents of the two containers 5, 9 by tilting and rotating them. This mixing takes place without the contents of the containers 5, 9 coming into contact with the environment. The interior can even be under pressure, for example with carbonated beverages, and the connection device 1 can be easily configured to withstand the usual filling pressures or as needed in the mix. A common magnitude of such a pressure requirement is a resistance of at least 6 bar.

Figure 3 schematically shows an arrangement 29 with two beverage containers 5, 9. These are connected to each other by a connecting device, however, they are covered by the clamping sheet 19. The upper container 5 is connected by screwing the connection 1 through its bottom in a corresponding opening in the upper part of the container 9. By means of the connection device, the two containers 5, 9 are connected to a combined container for the beverage, resulting from mixing the contents of the container 5 with that of the container 9. In the opening 31, which can be closed for example with a screw cap (not shown), but can also carry another closure device conventional in beverage technology, the beverage is removed from the arrangement 29.

Figure 4 shows a possible arrangement for at least provisionally locking the containers 5, 9 in the transport position shown in Figure 1.

For this purpose, a recess 33 is formed at a point on the outer surface of the bottlenecks 25, 27, in which a protrusion 35 of the connecting device 1 can fit. This recess can be seen in a suitable design of the recess 33 and of the projection 35, however allowing with a corresponding effort to overcome this resistance and with it a joint threading for a mixing situation according to figure 2. The thread passage 41 of the connection device and the thread passage 42 are also shown. of the neck of the bottle 25, 27. Another possibility is to give the manual assembly a tactile response when the two bottles 5, 9 are in the initial position of figure 1. A corresponding mark on the container and the connection device can serve to this purpose.

The section of figure 5 illustrates the configuration inside a connection device 1. This is substantially cylindrical and has inside the thread passages 41, 43 for the necks of the container 25, 27. In particular, here you can see the blade 15, the tip 47 that stitches the seal 11 first and then with its cutting edge 49 section it separating it circumferentially from the bottleneck 27. To press the seals 11, 13 inward, the blades, in this case representatively the blade 15, have a rib 50 below and substantially parallel to the cutting edge 49. This presses the respective seal pushing it inside the opening of the bottle.

It is noteworthy that the threaded connection guarantees tightness even against pressures such as those produced in mineral waters and other carbonated beverages. For this purpose, at the time of pressing, that is, when opening a seal, according to experience, it is necessary that at least 4 thread steps are compromised.

The manufacturing model with blades that are integrally formed with the tubular part of the connection device, according to the invention as flat side surfaces, allows a simple and economical production of the connection device by mass production methods such as injection molding. For example, in a first step, halves of the connecting device are produced, the dividing lines extending substantially parallel to the sectional surfaces of figure 1. Every two halves of this type are connected forming a complete connecting device, for example by welding.

The blades 15, 17 can be formed offset from the center depending on the requirements of the manufacturing process. Accordingly, the blades for example in figure 5 are displaced to the right or left to the point that each blade is completely in the middle of the connecting device. The halves produced in the first step have at least one complete blade 15, 17 or none at all. A symmetrical arrangement is preferred, so that each half has a blade.

Manufacturing example 2

Figure 7 shows the manufacturing model of a connection device 61 that is arranged within the connections of the container or bottlenecks 26, 28 of the container 5, 9. The bottlenecks have an internal thread 65 that is designed to coincide with external thread. 67 of the connecting device 61. The two containers 5, 9 are closed by the seals 11, 15. A locking ring 69 is arranged between the ends of the bottle neck. After removing the locking ring 69, the two containers 5, 9 can be moved further towards each other by rotating the connecting device 61. In this case, the oblique ends 71 of the connecting device 61 penetrate the seals 11, 15 and open them. The movement of the connecting device 61 is limited by a respective stop in relation to each of the two containers, so that both seals can be opened safely. In particular, the seals are also pressed, as explained in the first manufacturing model, into the neck of the container, but by limiting the movement, the complete separation of the seal is avoided, so that no loose parts arise. The stop in the present manufacturing model is a central ring 72 that similarly limits the inward movement of both bottles.

The length of the connecting device 61 is chosen so that, in any case, a sufficient engagement is ensured to screw and securely hold the connected container 5, 9 with the locking ring 69 connected. In particular, at least one full thread pitch (corresponding to 360 °) is preferably available, preferably 2, 3, 4 or more thread pitches for better sealing and better grip. Another criterion is that the center piece of the connection device 61, which forms a closed tube, extends into the container connections in this state, for example, at least one thread width to securely align the containers with with respect to the connection device 61 and, therefore, against each other.

The oblique ends 71, whose most protruding parts 73 are formed to section the seals 11, 13, in any case at an angle less than 90 ° with respect to the longitudinal axis of the respective connection between connection device 61 and container. A path parallel to thread 67 or flatter is preferred so that there is at least one full thread pitch in the center portion. As a rule, more than two full thread steps are required for the aforementioned alignment to ensure the container and also tightness. It is also possible that the slope conforms to only a part, for example at least 10%, 20% or 50% of the diameter of the connecting device 61. The center piece bearing full thread pitches thus extends with respect to the total length of the connecting device 61.

In the center of the connecting device 61 a stop ring 72 is formed. This limits the forward movement of the connecting device 61 when the containers are rotated together so that a defined opening of the seals 11, 13 takes place.

After insertion of the connecting device 61, for example at the bottom in the bottleneck 26 of figure 7, the neck 28 of the second container 9 is screwed into the connecting device 61 until the locking ring 69 is rests on the neck 26. The locking ring 69 is suitably attached, for example by welding, gluing or by a mechanical solution, such as a quick connection connected to the end of the neck 26.

A suitably designed element that provides surmountable resistance to rotate the containers 5, 9 relative to the connection device, such as the combination of the projection 35 and the recess 33 presented above, may be present as a protection so that during assembly of the connecting device do not enter too much into one of the two necks and damage the corresponding seal.

Furthermore, a foil 75 is placed around the connection between the containers 5, 9 and the connecting device 61. To open and mix the contents of the container, this foil must be torn. Therefore, it represents a guarantee seal. In addition, it can also contain informative impressions.

The foil 75 can have a stabilizing function, but in any case it must be torn by rotating and opening the seals 11, 13, so that the foil 75 in particular can immediately detect if the assembly is still in the state of supply.

This connection device 61 arranged in the container connections can also be manufactured with little effort by mass production processes, such as injection molding of plastics.

Figure 8 shows a manufacturing model that can be placed in any container connection by means of adapter parts, in particular a sealing cap as a screw cap. At the necks 81, 83 of the container 5, 9, a sealing cap 85 is screwed on. The sealing cap comprises a threaded ring which is provided with a thread for the neck of the container 81, 83. This is externally provided with a thread for the sleeve 91. The sleeve 91 has at the other end the internal thread 65 for the connection device 61

The sealing cap 85 carries a diaphragm in the threaded ring 87 (or, in general, a clamping ring, if the bottle provides an accessory other than the thread). The membrane can be single or multi-layered, for example a sequence of synthetic material, metal (aluminum), plastic, depending on the requested conditions. This is placed on the clamping ring on one of the materials used of the adapted type, for example, by welding, if the ring is made of plastic.

In particular, this solution makes it possible to fill sterile or otherwise sensitive substances or under special regulations with the existing facilities in the containers (bottles) of the prior art, which then they are sealed with a sealing cap. Adaptation to the system according to the invention occurs through the sealing cap. Such substances are, for example, liquids that must be kept sterilized and other substances in the field of medicine, educts in the production of plastics, or food products.

In this case, the stop ring 72 also forces a two-piece assembly of the threaded sleeve 91 and a clamping together on the locking strip 69. However, the arrangement may be available in a pre-fabricated manner. Containers 5, 9 are screwed onto both ends of sleeve 91.

Although not shown, the arrangement may be surrounded by a foil 75 as explained above for Figure 7 or in the first manufacturing example.

Figures 9 and 10 show in more detail the structure of the sealing cap or closure cap 85: A first sheet 88a (made of aluminum, for example) is attached to a circumferential support segment 87 at the open end of the sealing ring. Fixation 86 by spot welding (see weld spots 89), and then a plastic sheet 88b is also welded together (see weld spots 88). Finally, the sealing ring is placed and continuously circumferentially connected to clamp ring 86, for example, by welding. In general, a hermetic screw-on lid on containers 5, 9 is achieved, which is suitable by the arrangement of the sheet 88, to be perforated and opened by the opening measures of the connection device.

From the above description of the manufacturing models, numerous additions and modifications will be apparent to those skilled in the art without departing from the scope of the invention, which is defined by the claims. Conceivable modifications are:

• The connection device can also be designed for three or more vessels, then bearing corner elements for extending vessels are produced at the corners of a triangle, quadrilateral, etc. However, a spatial arrangement is also conceivable, for example in four containers, at the corners of a tetrahedron.

• Instead of threads, other holding elements for containers are also conceivable, for example bayonet type, where a container is held in a first holding position in the transport position and by turning backwards it is brought to a position where the pins Bayonet valves can be moved toward a link that extends axially into the connection device. If these vias are formed helically, this results in a thread-like motion, first piercing the blades into the seals and then sectioning them. However, a first purely axial movement is also conceivable, with the blade piercing the seal, followed by a pure rotary movement to section the closures circumferentially.

• Plastic, metal such as aluminum in particular, but also other materials are conceivable as a material for the connection device, depending on the type of containers and requirements for the connection device, such as the sterilization capacity but also by the substances themselves to mix, for example corrosion resistance.

• Instead of liquids, containers can also contain solid bulk materials or solid and liquid materials. It can also contain only one container, a material in pourable or fluid form, which can be contacted through the connection device with a material stationary in the second container. Gases are also conceivable as substances.

• The holding sheet 19 may be shaped so weakly that it may break. Alternatively, for example, a strip or connecting piece in the form of a band is conceivable that tears during a rotational movement and, therefore, warns of an attempted opening. In particular, such a solution is conceivable with an interlock as shown in Figure 4.

• The holding sheet is equipped with a tear-off or destruction element, such as a tear strip, so that the stabilizing joint through the holding sheet can be selectively broken by sectioning or destroying the holding sheet or, in In general, the mechanical connection between the containers. This separation is carried out before opening the containers or simultaneously.

• The containers, or at least one container, are connected to the connecting device by an equivalent connection to the clamp sleeve or clamp sheet, rather than to another container. Among others it is possible to selectively open said containers in a predetermined order. The movement to open the seal 11, 13 can be limited so that only a substantial part separates from the neck of the container, for example at least 1/3, 1/2, 2/3 or 3/4 of the perimeter. But even full free rotation separation at the threaded end is conceivable, as well as just drilling, i.e. making a hole-shaped opening.

• The closing device according to figure 4 can also be inverted or made in another way.

• The holding sheet is replaced by a locking ring for each container.

• The device connections are provided with asymmetric or protruding teeth 52 (see Figure 6) and the container connections are provided with a complementary or protruding recess, for example in the form of a sawtooth with a flank sloping up to vertical and a sloping flank. These asymmetric locking devices in a correct direction of rotation or movement against relatively low resistance can be overcome, however prevent backward movement. Favorably, these devices fit into at least one situation, preferably two, namely, containers connected to the connection device, but closed (see figure 1) and open container (see figure 2).

• The connection device is made of plastic, in particular one suitable for the respective application, such as PE, PVC, metal or metal alloys, or in parts of either material.

• Rib 50 is missing on at least one blade 15, 17.

• At least one of the seals (preferably all seals 11, 13) presents a peripheral weakening to facilitate the sectioning or at least the perforation by the blades 15, 17. In particular, if the blades are made of a less solid material or They are formed without a sharp cutting edge, weaknesses are advantageous, also depending on the distribution on the surface of the seals, to facilitate the sectioning or tearing of the seals.

• The blades are shaped straight.

• The blades are integrally formed in the connection device and are made of the same material or another material more suitable for function as a means of sectioning, for example a high resistance plastic.

• At least one blade 15, 17 is made of metal.

• For a better and smoother opening of the seals 11, 15, the protruding parts 73 of the ends 71 of the connecting device 61 are formed as a cutting edge. Therefore, it is also conceivable to form an additional projection on the part 73 designed as a blade.

• The sleeve 91 and the sealing cap 85 are integrated in one piece, so the threaded connection between the sealing cap and the sleeve is dispensed with.

• The connection device is a combination of the manufacturing examples, that is, it comprises at least one externally threaded connection to screw into a container connection and at least one internally threaded connection to unscrew into a container connection. In addition, each externally threaded connection can be secured with a locking ring according to the second manufacturing example.

• The sealing cap 85 is used in the first manufacturing example in a manner analogous to that described for the second manufacturing example. In this way, previously known containers can also be used in the first manufacturing example. The sealing cap provides thread 42 to unscrew the connection device.

• The sealing lid 85 has a different arrangement of sheets adapted to the content of each container and other connection methods than welding, such as gluing, for example, which will be applied alternatively or additionally during assembly.

• The means to limit the movement of the connection device in a container 5, 9 is alternatively limited by one of the measures: A) The end formed as a separator has a smaller diameter than the rear, so that this part, impacting against the possibly reinforced edge around the respective seal, stops the rotational movement. B) The inlet of the container presents a narrowing that the connection device cannot cross. In both variants A) and B) in particular the threaded sleeve 91 can be manufactured with locking strips 69 as one piece, since the connection device can be screwed inside.

Claims (13)

1. Connection device (1) having at least two substantially tubular device connections (3, 7) for a container respectively (5, 9), each container presenting a container connection (25, 27) whose opening is sealed by a perforable wall (11, 13), each connection of the device (3, 7) presenting a clamping device (41, 43) which is adapted to engage the connection of the container (25, 27) in a first position in which the device connections (3, 7) form a substantially hermetic connection of the container (5, 9) with the connection device (1), and each device connection (3, 7) has an opening device (15, 17, 41, 43) comprising a feed device (41, 43) and a separating element (15, 17), the opening device (15, 17, 41, 43) being connected to the connection of the device (3, 7 ) and adapted to allow a rotary movement of the container connection (25, 27) in rel ation with the connection of the device (1) that brings the perforable wall (11, 13) to the effective area of the separation element (15, 17) and moves it with respect to the latter in such a way that the perforable wall (11, 13 ) opens, so that at least two containers (5, 9) can be connected to the connection device (1) in the first position and by rotating the two containers (5, 9) the containers can be moved towards the connection device (1) and open, whereby the content of at least two containers (5, 9) can come into contact with each other, characterized in that the rotational movement of the two containers (5, 9) is directed the against each other and the separating element (15, 17) is integrally formed with the tubular part of the connection device (1) as a flat blade (15, 17) formed as lateral surfaces, which is located inside the connection of the device (3, 7) near the pierceable wall (11, 13 ) and axially aligned to point towards the opening of a container (5, 9) to allow the connecting device (1) to be manufactured by a mass production process, more particularly by injection molding. 2. Connection device (1) according to claim 1, characterized in that the first clamping device (41,43) and the advance device (41, 43) form a thread (41, 43) in which one can be screwed thread (42) at the connection of the container (25, 27). Connection device (1) according to claim 2, characterized in that the holding device (41, 43) comprises an interlocking device (35), preferably a projection or a recess, in which an interlocking device (33) Completely formed in the connection of the container (25, 27) can be recessed to firmly hold the container (5, 9) in the first position. Connection device (1) according to one of claims 1 to 3, characterized in that the separating element (15, 17) comprises a tip (47) and an adjacent cutting edge (49) so that during the movement of the connection of the container (25, 27) towards the separation element, the closing wall (11, 13) can be pierced by the tip (47) and during the additional movement and at least a substantial part of the closing wall (11 , 13) can be separated from the connection of the container (25, 27) through the cutting edge (49). 5. Connection device (1) according to claim 4, characterized in that the separation element (15, 17) is formed near a wall of the connection of the device (3, 7) with the tip (47) directed towards the device (41), 43) and with the cutting edge (49) extending at an angle of less than 90 degrees with respect to the direction of axial advance of the connection of the container (25, 27) inside the connection device (1) to obtain the largest possible open cross section of the connection of the container (25, 27) during the perforation of the perforable wall (11, 13). 6. Connection device (61) having at least two device connections for a respective container (5, 9) having a connection of the container (26, 28; 91) whose opening is sealed by a perforable wall (11, 13 ), each device connection presenting a holding device (67) which is adapted to be coupled to a container connection (26, 28; 91) in a first position where the device connections form a substantially hermetic connection of the containers (5, 9) with the connection device (61), and each connection of the device comprises an opening device that includes a advance device (67) and a separating element (73), the opening device being connected to the clamping device (67) and adapted to allow a movement of the connection of the container (26, 28; 91) with respect to the connection of the device that brings the perforable wall (11, 13) to the effective area of the element separating device (73) and moves it with respect to it in such a way that the perforable wall (11, 13) opens, so that at least two containers (5, 9) can be connected to the connection device (61) in the first position characterized in that the connection device (61) is arranged in such a way that a rotational movement of the two containers (5, 9) against each other allows the containers to move towards the connection device (61) and open, so that the contents of at least two containers can come into contact with each other, and because each connection of the device - it has an external thread (67) to be able to screw on a tubular support element of a container (5, 9) that has an internal thread (65), the external thread (67) comprising the clamping device (67) and the device advance (67); - it has an open end (71) that comprises the separation element, the open end (71) extending in a part of at least 10% of the diameter of the connection of the device, at an angle of less than 90 ° with respect to the longitudinal axis of the connection of the device, thus forming a protruding part (73) that forms the separation element (73) that is capable of sectioning a seal that forms the perforable wall (11, 13) in a bearing element; Y - at least one thread pitch of the external thread (67) covers a complete turn (360 °) to allow the connection device to be manufactured by a mass production process, more particularly by injection molding. Connection device (61) according to claim 6, characterized in that the protruding part (73) extends over at least 20%, preferably at least 50%, and particularly preferably over substantially 100% of the diameter. Connection device (61) according to one of Claims 6 to 7, characterized in that the connection of the device has a stop (72), in particular a blocking of at least one thread pitch, so that the depth at which the connection of the device can be screwed into a complementary thread is limited by the stop (72). 9. An arrangement of the multi-component container comprising a connection device (1; 61) according to one of claims 1 to 8 and at least two containers (5, 9) which are connected to the device connections (3, 7) by means of of the clamping device (41,43; 67), preferably one container at each connection of the device. 10. A multi-component container arrangement according to claim 9, characterized in that a removable or removable stabilizing element is provided between the containers (5, 7), more particularly that can be torn or cut (19; 69, 75) to hold the containers ( 5, 7) in the first position. 11. Arrangement of the multi-component container comprising a connection device (1) according to one of claims 2 to 3 and preferably also 4 or 5, and at least two containers (5, 9) that are connected to the connections of the device (3 , 7) by means of the clamping device (41, 43), preferably a container at each connection of the device, characterized in that the thread (41, 67) is designed in such a way that at least four thread pitches are attached to the connections of the container (25, 27) when the pierceable wall (11, 13) is in the effective area of the separating element (15, 17), such that the connection device (1) is tightened to a predetermined internal pressure 6 bars at least when all the containers (5, 9) are open. 12. Multi-component container arrangement according to claim 10, characterized in that the stabilizing element (19) is substantially a wall that surrounds the connections of the device (3, 7) and that is firmly connected to the connection device (1) and to the connected containers (5, 9) to isolate the device connections (3, 7) from the environment. 13. Multi-component container arrangement according to one of claims 9 to 12, characterized in that the connection device consists of a synthetic material, preferably a sterilizable synthetic material, or a metal, preferably aluminum.