CN219816120U - Cartridge assembly - Google Patents

Abstract

The utility model relates to a barrel assembly. The barrel assembly may include: first and second barrels for storing first and second materials; and a head arranged at a first outlet of the first barrel. part, the head part forming at least part of the outlet device of the cartridge assembly; the outlet device; being arranged at the second outlet of the second cartridge and closing the second outlet of the second cartridge in the storage state a plug element configured to be introduced into the head portion and to cooperate with a closure of the outlet means, said closure being accessible from the first and second outlets of the first and second cartridges removable and attachable to the first and second outlets of the first and second cartridges, wherein the plug element is removable from the second outlet when the closure is removed from the cartridge assembly and is attachable when replacing the The closure at the cartridge assembly is inserted into the second outlet.

Description

Barrel components

Technical field

The utility model relates to a barrel assembly and a method of assembling the barrel assembly.

Background technique

Dispensing systems exist in a variety of forms that can be used in a variety of applications ranging from dental applications, medical applications, veterinary applications, to industrial applications, and so on.

Dispensing systems typically have an outlet that can be connected to the cartridge so that material stored in the cartridge is directed via the outlet to the point of application. If two-component materials are to be dispensed (such as adhesives, paints, molding materials, impression materials, etc.), the dispensing system consists of two cartridges, one for each component of the material to be dispensed .

Two-component cartridges are known in a large number of designs and are often provided to store two materials that are to be mixed with each other after dispensing from the cartridge to form the 2K material.

There are systems in which the two barrels of the 2K system can be interchanged and connected to each other. However, these systems are often difficult to connect, and the connections are not particularly efficient.

For this reason, it is the object of the present invention to provide a simple-to-use 2K cartridge assembly which can be interconnected in an improved way. Another object of the invention is to obtain a simple and cost-effective method of manufacturing such a cartridge assembly.

Utility model content

This object is achieved by the barrel assembly according to the present invention.

Such a cartridge assembly may comprise: first and second cartridges for storing first and second materials; a head portion arranged at a first outlet of the first cartridge, said head portion forming said At least a part of the outlet device of the cartridge assembly; said outlet device; a plug element arranged at the second outlet of the second cartridge and closing the second outlet of the second cartridge in the storage state, said plug element A closure configured to be introduced into the head portion and co-operate with the outlet means, said closure being removable from the first and second outlets of the first and second cartridges and attachable to the first and second outlets. First and second outlets for two cartridges, wherein the plug element is removable from the second outlet when the closure is removed from the cartridge assembly and is insertable when replacing the closure at the cartridge assembly to the second exit.

This cartridge assembly is simple to use because when assembling the cartridge assembly the outlet of the second cartridge is simply inserted into the head part and thus the plug element can be connected to the closure so that the cartridge can be ways to connect to each other.

The production of such cartridge components can be performed in a simple and cost-effective manner, for example in an injection molding process or using additive manufacturing techniques.

At this point, it should be noted that the head portion generally refers to that portion of the cartridge that includes the outlet, where the head portion is that portion of the outlet device that can be connected to the dispensing outlet (such as, respectively, a static mixer dispensers and dynamic mixers) and can be complementarily shaped with dispensers for use with cartridge assemblies.

At this point it should be noted that such a plug element can be used to seal the second outlet of the second cartridge, i.e. it is inserted into the second outlet and in turn also serves as an insert into the head part, closing accordingly components in the package.

At this point, it should be further noted that the closure is typically the component used to close the cartridge assembly after it has been used.

Respective ends of the first and second cartridges remote from the first and second outlets of the first and second cartridges may include connecting means, wherein the connecting means are configured to be interconnected. In this way, the first and second cartridges can be connected to each other at the ends remote from the head portion.

The connection means may be formed by one or more tongue and groove connections. This tongue and groove connection is simple to use and facilitates simple assembly of the barrel assembly.

The outlet device may comprise a housing, in particular a frustoconical housing, configured to receive and retain the front end of the plug element. Such a receptacle can be used in a simple manner to receive and store plug elements.

The receiving portion may be a truncated cone-shaped receiving portion. This shape is dimensionally stable and easily manufactured from plastic.

The plug element may be configured to be connected to the closure via a plug connector. This plug connector can simply be inserted into the closure.

The plug element may comprise a circumferentially extending lip as a plug connector. Such a lip is simple to produce and can snap-fit into place at the receptacle, for example by passing through an opening in the receptacle and then engaging an edge of the receptacle.

The plug connector (ie the circumferentially extending lip) may have a triangular shape in its section taken parallel to the longitudinal axis of the plug element. This shape facilitates insertion into the opening and against the edge of the receptacle.

The plug element can cooperate with the closure via a snap-fit connection. This snap-fit connection is simple to use and stable in use. The snap-fit connection may include a plug connector. The snap-fit connection may further include a receiving portion. In this way, a snap-fit connection is formed between the receptacle and the plug element.

The plug element may further comprise a snap element. Such snap elements can be advantageously used to connect the plug element to the closure and to enable disengagement of the plug element from the second outlet.

The snap element can be deflected after the plug element has been introduced into the head part of the outlet device. This deflection enables the plug element to be disengaged, for example, from the outer surface of the second outlet. Such deflection may include rotation or radially outward deformation of a portion of the snap element.

The snap element may comprise two limbs connected to the base. Such limbs can be deflected when the plug element is inserted into the closure.

The base may extend radially outwardly from the body of the plug element. Such a body may for example be formed as a tubular body, ie a component having a cylindrical shape.

The snap element may further include one or more viewing windows. Such a viewing window can be used to attach snap elements to the outlet in a simple manner.

The second outlet may include one or more nose portions, and wherein the one or more viewing windows respectively engage one of the one or more nose portions. In this way, the plug element can be connected to the outlet in an easy manner.

The snap element can be deflected by rotation when the plug element is inserted into the head part. After rotation of the plug element relative to the second outlet, the engagement between the plug element and the second outlet at the outer surface of the second outlet can be released.

The snap element may be deflected radially outwardly at a deflection structure present in one of the head portion and the outlet device. By means of this deflection (ie deformation of a part of the catch element), the engagement between the plug element and the second outlet at the outer surface of the second outlet can be released.

The plug element may include one of an abutment surface and threads. Such a structure may be advantageously used to deflect the plug element and thereby release the engagement between the plug element and the outer surface of the outlet.

A respective one of the limbs may include a respective one of the viewing windows. In this way, the most compact possible design of the plug element can be produced.

The receiving portion may include one or more elongated slots. This elongated slot facilitates the introduction of the plug element into the receptacle.

According to another aspect, the application further relates to a method of assembling a cartridge assembly, optionally as described in the preceding content, said method comprising the steps of:

- inserting the plug element attached to the second outlet of the second cartridge into the head part attached to the first outlet of the first cartridge; and

The plug element is attached to an outlet device including the head portion.

For example, the plug element may be guided through the opening of the head part before contacting the receptacle of the closure of the outlet device. The plug element may snap-fit into position at the receptacle of the closure.

Description of the drawings

Other embodiments of the invention are described in the following description of the drawings. The invention will be explained in detail below by means of examples and with reference to the accompanying drawing, in which it is shown:

Figures 1a and 1b show the cartridge assembly of the first type after and before assembly;

Figures 2a to 2d are views showing various stages of assembly of the cartridge assembly of Figures 1a and 1b;

Figures 3a to 3d are views similar to Figures 2a to 2d of the second type of cartridge assembly before and after assembly;

Figures 4a and 4b show the third type of barrel assembly after and before assembly;

Figures 5a to 5d are views illustrating various stages of assembly of the cartridge assembly of Figures 4a and 4b; and

Figures 6a to 6c and Figure 7 are views similar to Figures 4a and 4b of the fourth type of cartridge assembly before and after assembly.

Detailed ways

Figure 1a shows the cartridge assembly 10 before assembly. The cartridge assembly 10 includes a first cartridge 12 and a second cartridge 14 for storing first and second materials M, M'. The cartridge assembly 10 further includes a head portion 16 disposed at the first outlet 18 of the first cartridge 12 . The head portion 16 forms part of the outlet device 20 of the cartridge assembly 10 .

At this point it should be noted that the outlet device 20 includes a second outlet 24 of the second cartridge 14 , a plug element 22 arranged at the second outlet 24 of the second cartridge 14 , a plug element 22 for closing and opening the assembled The closure 26 of the cartridge assembly 10 and the cap 90 attached to the head portion 16 .

The plug element 22 is configured to close the second outlet 24 of the second cartridge 14 in the storage state and to exit the second outlet 24 from the second outlet 24 when the cartridge assembly 10 is opened in the use state of the cartridge assembly 10 for dispensing. Remove.

The plug element 22 is configured to be introduced into the head portion 16 and to cooperate with the closure 26 of the outlet device 20 after the plug element 22 has been introduced into the outlet device 20 .

For this purpose, the plug element 22 is inserted into the opening 84 of the head part 16 and is guided through the head part 16 until it engages the closure 26 of the outlet device 20 as shown for example in Figure 2c.

The opening 84 is complementary in shape and size to at least a portion of the plug element 22 . The reason for this is that the opening 84 of the head portion 16 is configured to guide and align the plug element 22 (ie, the second cartridge 24 ) as the plug element 22 is introduced into the outlet device 20 so as to introduce the second cartridge 24 into the outlet device 20 . The cartridge 24 is correctly assembled to the first cartridge 18 .

In this example, opening 84 has an approximately square shape with rounded edges. Similarly, the outer part of the plug element 22 likewise has an at least approximately square shape with rounded edges of similar radii.

In this regard, it should be noted that the shape of the opening 84 and/or the portion of the plug element 22 may be selected from the group consisting of: at least approximately square, square, at least approximately rectangular, rectangular, at least approximately triangular , triangle, at least approximately polygon, polygon, at least approximately oval and oval.

The closure 26 is removable from and attachable to the first outlet 18 and the second outlet 24 of the first and second cartridges 12 and 14 . Second exit 24. The plug element 22 is attached and fastened to the closure 26 such that the plug element 22 is removed from the second outlet 24 when the closure 26 is removed from the cartridge assembly 10 and can be used when replacing the cartridge assembly 10 The closure 26 is reinserted into and attached to the second outlet 24 .

The plug element 22 further includes a snap element 48 at an end opposite its front end 40 . The snap element 48 is configured to retain the plug element 22 at the outer surface 86 of the second outlet 24 prior to introduction of the plug element 22 into the closure 26 .

The respective ends 28 , 30 of the first and second barrels 12 and 14 remote from the first and second outlets 18 and 24 of the first and second barrels 12 and 14 include connecting means 32 . The connecting device is configured to interconnect the first cartridge 12 and the second cartridge 14 .

The connecting device 32 is formed by one or more tongue and groove connections 34,36. In the example shown in Figures 1a and 1b, a pair of tongues and grooves 34, 36 are provided. The tongue 34 may be formed into a cylindrical shape which is then inserted into a complementary circular groove 36 as indicated. Alternatively, other shapes that facilitate the connection between the first cartridge 12 and the second cartridge 14 may also be selected, as indicated for example in Figures 4a and 4b.

At this point, it should be noted that the groove 36 may also be formed on the second barrel 124 and the tongue 34 may be provided at the first barrel 12 .

As further indicated in Figures 1a and 1b, the tongue 34 and groove 36 connection may further include an axial abutment 98.

This axial abutment 98 may snap-fit into place when coupling the first barrel 12 and the second barrel 14 and thereby prevent axial movement away from the head portion 16 along the longitudinal axis A of the second barrel 14 move.

At the other end of the second cartridge 14 , a second outlet 24 is formed at least partially complementary to the head portion 16 and axially abuts the head portion 16 thereby preventing the second cartridge 14 from exceeding the axis of the head portion 16 move towards.

At this point, it should be further noted that the length of each tongue 34 may be between 5% of the length of one of the first barrel 12 and the second barrel 14 to the length of one of the barrels 12, 14 20% range to choose from.

Similarly, the length of each groove 36 is generally selected to be complementary to the length of each tongue 34 , that is, the length of each groove 36 may be between one of the first barrel 12 and the second barrel 14 It is selected within the range of 5% of the length to 20% of the length of one of the barrels 12 and 14 .

Figure 1b shows the cartridge assembly 10 after the first cartridge 12 and the second cartridge 14 have been connected to each other. In this state, the first and second cartridges are connected to each other via a tongue and groove 34 , 36 connection, and the plug element 22 is connected to the closure 26 .

Figures 2a to 2d show various views illustrating various stages of assembly of the cartridge assembly 10 of Figures 1a and 1b.

FIG. 2 a shows a perspective view similar to FIG. 1 a before the plug element 22 of the second cartridge 14 is inserted into the head part 16 . The head part includes on its outer surface external threads 88 via which the cap 90 can be connected to the head part 16 in order to secure the closure 26 to the outlet device 20 in the storage condition.

At this point it should be noted that the cap may also be attached using different connection means such as a bayonet connection.

The receptacle 38 is arranged on the closure 26 . The housing includes two grooves 72 at opposite sides thereof, an opening 80 and a rim 82 surrounding the opening. The plug element 22 is configured to be inserted into the receptacle 38 with its front end 40 guided through the opening 80 and then with the front end 40 secured to the receptacle at the edge 82 .

The receptacle 38 may have a frustoconical shape, as indicated in the figure. This facilitates the function of the receptacle 38 to receive and retain the front end 40 of the plug element 22 . When inserting the plug element into the receptacle, the slot 72 permits some radial deflection of the receptacle to allow the front end 40 to pass through the opening 80 .

Plug element 22 is configured to connect to closure 26 via plug connector 42 . In the example shown, the plug element 22 includes a circumferentially extending lip 44 as a plug connector 42 .

The plug connector 42 (ie the circumferentially extending lip 44 ) has a triangular shape in its section taken parallel to the longitudinal axis A of the plug element 22 .

This means that the outer surface forming the front end 40 of the plug connector is inclined relative to the longitudinal axis A such that it tapers outwards from the opening 80 towards the rearward surface 92 . This inclined surface allows for a simple transition of the front end 40 through the opening 80 , while the radially outwardly projecting rearward surface 92 is located on the edge thereby preventing the front end 40 from returning through the opening 80 .

Thereby, a snap-fit connection 46 is formed between the plug element 22 and the closure 26 . In this example, the snap-fit connection is formed between the plug connector 42 and the housing 38 .

Figure 2b shows the material of Figure 2a before the cartridge assembly 10 is assembled (ie before the plug element 22 is introduced into the opening 84 of the head portion 16 and before the plug element 22 is connected to the closure 26). Side view of barrel assembly.

Figure 2c shows the same perspective view as Figure 2b after the plug element 22 has been snap-fitted into position at the closure 26. Snap element 48 includes two limbs 50 connected to base 60 . The base 60 extends radially outwardly from the body 78 of the plug element 22 . To accommodate the snap element 48, the head part includes a reservoir 54 (see Figure 2b). This reservoir may include a tapered surface 56 in the head portion 16 .

Upon insertion of the plug element 22 into the head portion 16, the plug element 22 enters the reservoir 54 and comes into contact with the abutment surface 58 at the front end of the reservoir. This causes base 60 to deform, causing radially outward deflection of limb 50 .

The limb 50 includes an abutment 52 configured to engage the truncated plug 62 of the second outlet 24 in the stored state of the second cartridge 14 . On deflection of the radially outward orientation of the limb 50 , these abutments 62 disengage from the plug 62 , allowing removal of the plug element 22 from the second outlet 24 .

FIG. 2 c now shows the radial deflection of the limb 50 and the disengagement of the snap element 48 from the plug 62 .

Figure 2d shows another side view rotated 90° relative to figure 2c. This figure indicates how the plug element 22 is connected to the receptacle 38 of the closure 26 . When the closure 26 is removed, both the first outlet 18 and the second outlet 24 are open and the plug 76 of the plug element 22 can be removed from the second outlet 24 and the plug 94 can be removed from the first outlet 18 .

Figures 3a to 3d are views similar to Figure 2 of the second type of cartridge assembly 10 before and after assembly.

As indicated in Figure 3b, the reservoir includes internal threads 68. This thread 68 carries the plug element 22 causing a rotation of the plug element 22 about the longitudinal axis A of the second outlet 24 . Thereby, the respective viewing window 64 of each of the limbs 50 of the catch element 48 disengages from the respective nose 66 (see Figure 3a), allowing the plug element 22 to be released from the outer surface 86 of the second outlet to remove the closure. The plug element 22 is removed from the second outlet 24 as part 26 is removed.

The front end 40 of the plug element 22 engages the receptacle in a similar manner to the previous example.

Compared to FIG. 3 b , FIG. 3 c shows how the plug element 22 has been rotated relative to the second outlet 24 .

FIG. 3d shows that a rotation of the plug element 22 up to 90° is achieved.

In this regard, other amounts of rotation are also possible, for example the relative rotation of the plug element 22 to the second outlet 24 when inserting the plug element 22 into the head part can be selected in the range of 30° to 180°.

Figures 4a and 4b show the third type of cartridge assembly 10 before and after assembly.

The difference from the cartridge assembly 10 shown in Figures 2a to 2d is the type of closure 26 used and the type of tongue 34 and groove 36 connection.

The closure 26 includes two arms 70 that are deflectable about a base 74 of the closure 26 when the closure 26 is opened. In the stored state, the two arms 70 engage into the recess 96 of the head part 16 . The two arms 70 can be deflected radially outward in order to disengage the recess 96 . The arm 70 can be deflected back into the recess 96 as the closure 26 is inserted back into the outlet 18 , 24 . Figure 5b shows how this engagement occurs. As indicated in Figure 5d, a receptacle 38 is formed at the base 74 of the closure 26.

The tongue 34 and groove 36 connection is formed by a T-shaped tongue 34 joining two complementary shaped grooves 36, as indicated in Figure 4b.

Figures 5a-5d are views showing various stages of assembly of the cartridge assembly of Figures 4a and 4b. The plug element 22 is formed similarly to the plug element 22 shown in Figures 2a to 2d, with the closure 26 being formed like the closure 26 shown in Figures 5a to 5d.

Not indicated is the tongue 34 and groove 36 connection as it may be formed as indicated in Figures 1a and 1b and as shown in Figures 4a and 4b respectively.

Figures 6a to 6c and Figure 7 are views similar to Figures 4a and 4b of the fourth type of cartridge assembly before and after assembly. The plug element 22 is formed similarly to the plug element 22 shown in Figures 3a-3d, with the closure 26 being formed like the closure 26 shown in Figures 5a-5d.

Not indicated is the tongue 34 and groove 36 connection as it may be formed as indicated in Figures 1a and 1b and as shown in Figures 4a and 4b respectively.

The snap element 48 of the plug element 22 is configured to engage the outer surface 86 of the second outlet 24 in its stored state, wherein the snap element 48 after the plug element 22 is introduced into the head portion 16 of the outlet device 20 48 is deflected relative to the second outlet 24 .

The snap element 48 may be deflected by rotation when the plug element 22 is inserted into the head part 16 (see, for example, Figures 3a-3d and 6a-6c and Figure 7), or it may be deflected between the head part 16 and The deflection occurs at deflection structures present in one of the outlet devices 20 (see, for example, Figures 2a-2d and Figures 5a-5d).

When assembling the cartridge assembly 10 , the plug element 22 attached to the second outlet 24 of the second cartridge 14 is introduced into the head portion 16 attached to the first outlet 14 of the first cartridge 12 . Upon introduction into the head portion 16 and/or the closure 26 , the plug element 22 is deflected to disengage from the outer surface 86 of the second outlet via the snap element and snap into place at the closure 26 .

The multi-component material M, M' is, for example, a two-component adhesive including filler material and hardener. In order to obtain the best possible mixing results, eg an adhesive with the desired bonding strength, the multi-component materials M, M' must be mixed thoroughly.

Accordingly, the first cartridge 12 and the second cartridge 14 may be filled with a material M, M' selected from the group consisting of topical medications, medical fluids, wound care fluids, cosmetics and/or skin care formulations , dental fluids, veterinary fluids, adhesive fluids, disinfectant fluids, protective fluids, paints, and combinations of the foregoing.

Accordingly, this material M, M', and thus the cartridge assembly 10 may be advantageously used for the treatment of target areas such as the nose (e.g. antihistamine ointments, etc.), ears, teeth (e.g. for Implants or molds for cheek applications (e.g. small ulcers, gum treatments, mouth sores, etc.), eyes (e.g. precise deposition of medications on the eyelids (e.g. meibomian gland cysts, infections, anti-inflammatory drugs, antibiotics, etc.), Lips (e.g. herpes), mouth, skin (e.g. antifungal, dark spots, acne, warts, psoriasis, skin cancer treatment, tattoo removal medications, wound healing, scar treatment, stain removal, anti-itch applications, etc.), other skin conditions biological applications (e.g. skin and nails (e.g. antifungal applications or fortified formulations, etc.)) or cytological applications.

Alternatively, the materials M, M' and therefore the cartridge assembly 10 can also be used in industrial fields, both for the production of products and for the repair and maintenance of existing products, for example in the construction industry, the automotive industry, aerospace Industry, energy industry, for example in wind turbines etc. The cartridge assembly 10 may be used, for example, for the dispensing of building materials, sealants, bonding materials, adhesives, paints, coatings and/or protective coatings.

List of reference signs:

10 barrel components

12 barrels

14 barrel

16 head part

18, 18' Exit of 12, Exit opening of 18

20 Exit device

22 Plug elements

24, 24' Exit of 14, Exit opening of 24

26 closures

28 end of 12

end of 30 14

32 connection device

34 tongue and tenon

36 grooves

38 Accommodation Department

40 22 front end

42 plug connector

44 lip

46 snap-fit connection

48 Snap elements

50 limbs

52 Adjacent Department

54 storage

Tapered surface of 56 16

58 adjoining surfaces

base of 60 22

62 truncated plug

64 windows

66 nose

68 thread

70 arms

72 slots

74 base

76 plug

78 body

80 38 openings

82 38 edge

84 16 openings

86 outer surface

88 external thread

90 caps

92 rear facing surface

94 plug

96 recess

98 Adjacent Department

A longitudinal axis

M, M’ material, material.

Claims (23)

1. A cartridge assembly (10), characterized in that it comprises:

a first cartridge (12) and a second cartridge (14) for storing a first material and a second material (M, M');

-a head portion (16) arranged at a first outlet (18) of the first cartridge (12), the head portion (16) forming at least part of an outlet means (20) of the cartridge assembly (10);

-said outlet means (20);

-a plug element (22), the plug element (22) being arranged at a second outlet (24) of the second cartridge (14) and closing the second outlet (24) of the second cartridge (14) in a stored state, the plug element (22) being configured to be introduced into the head portion (16) and co-operating with a closure (26) of the outlet device (20), the closure (26) being removable from the first outlet (18) and second outlet (24) of the first and second cartridges (12, 14) and attachable to the first outlet (18) and second outlet (24) of the first and second cartridges (12, 14), wherein the plug element (22) is removable from the second outlet (24) upon removal of the closure (26) from the cartridge assembly (10) and insertable into the second outlet (24) upon replacement of the closure (26) at the cartridge assembly (10).

2. The cartridge assembly (10) of claim 1, wherein respective ends (28, 30) of the first and second cartridges (12, 14) remote from the first and second outlets (18, 24) of the first and second cartridges (12, 14) comprise a connecting device (32), wherein the connecting device (32) is configured to be connected to each other.

3. Cartridge assembly (10) according to claim 2, wherein the connecting means (32) are formed by one or more tongue and groove (34, 36) connections.

4. Cartridge assembly (10) according to one of claims 1 to 3, wherein the outlet device (20) comprises a receptacle (38), the receptacle (38) being configured to receive and retain a front end (40) of the plug element (22).

5. The cartridge assembly (10) of claim 4, wherein the receptacle (38) is a frustoconical receptacle (38).

6. The cartridge assembly (10) of claim 4, wherein the plug element (22) is configured to be connected to the outlet device (20) via a plug connector (42).

7. The cartridge assembly (10) of claim 6, wherein the plug element (22) includes a circumferentially extending lip (44) as the plug connector (42).

8. The cartridge assembly (10) of claim 7, wherein the plug connector (42), i.e. the circumferentially extending lip (44), has a triangular shape in its cross-section taken parallel to the longitudinal axis (a) of the plug element (22).

9. The cartridge assembly (10) of claim 6, wherein the plug element (22) cooperates with the closure (26) via a snap-fit connection (46).

10. The cartridge assembly (10) of claim 9 wherein said snap-fit connection (46) comprises said plug connector (42).

11. The cartridge assembly (10) of claim 10 wherein the snap-fit connection (46) further comprises the receptacle (38).

12. A cartridge assembly (10) according to any one of claims 1 to 3, wherein the plug element (22) further comprises a snap element (48).

13. Cartridge assembly (10) according to claim 12, wherein the snap element (48) is deflected after introducing the plug element (22) into the head portion (16) of the outlet device (20).

14. The cartridge assembly (10) of claim 12, wherein the snap element (48) comprises two limbs (50) connected to a base (60).

15. The cartridge assembly (10) of claim 14 wherein the base (60) extends radially outwardly from a body (78) of the plug element (22).

16. The cartridge assembly (10) of claim 14, wherein the snap element further comprises one or more windows (64).

17. The cartridge assembly (10) of claim 16, wherein the second outlet (24) includes one or more noses (66), and wherein the one or more windows (64) each engage one of the one or more noses (66).

18. Cartridge assembly (10) according to claim 12, wherein the snap element (48) is deflected by means of rotation when inserting the plug element (22) into the head portion (16).

19. The cartridge assembly (10) of claim 12 wherein the snap element (48) is radially deflected at a deflection structure present in one of the head portion (16) and the outlet device (20).

20. A cartridge assembly (10) according to one of claims 1 to 3, wherein the plug element (22) comprises one of an abutment surface (58) and a thread (68).

21. The cartridge assembly (10) of one of claims 16 to 17, wherein a respective one of the limbs (50) comprises a respective one of the windows (64).

22. The cartridge assembly (10) of claim 4, wherein the receptacle (38) includes one or more elongated slots (70).

23. The cartridge assembly (10) of claim 15 wherein said body is a tubular body.