Multi-hose device

Abstract

The present invention relates to a multi-hose device (1, 1a) having an outer hose (2), at least one inner hose (3, 3a) arranged in the outer hose (2), and at least one connecting end (4, 4a), wherein the outer hose (2) and the at least one inner hose (3, 3a) are connected to the connecting end, and wherein the at least one connecting end (4, 4a) has a flow-through opening (5, 5b) for the outer hose (2), and a receiving portion (6, 6a, 6b) for the at least one inner hose (3, 3a) is arranged in the flow-through opening, and wherein the receiving portion surrounds the at least one inner hose (3, 3a) on less than an entire circumference of the at least one inner hose (3, 3a). This has the advantage that the complex shaping caused by the full circumferential clamping of the inner hose on the outside is avoided.

Description

Technical Field

[0001] The invention relates to a multi-hose device having an outer hose, at least one inner hose arranged in the outer hose, and at least one connecting end to which the outer hose and the at least one inner hose are connected. Background Art

[0002] In such a multi-hose device, for example, cold water and warm water are conveyed separately to mixed water, or different water bodies, such as concentrated water, are conveyed into a water channel. Known multi-hose devices are, for example, those consisting of a hose pulled out from a kitchen faucet or other hose devices.

[0003] The manufacture of such multi-hose devices is often associated with high costs. In addition, the connecting end (to which the outer hose and the at least one inner hose are connected) reduces the flow cross-section through which the liquid guided by the outer hose can pass, due to the structural type. Summary of the Invention

[0004] The object of the invention is to simplify the manufacture of the multi-hose device described at the beginning.

[0005] The solution to this problem in a hose device of the type described at the beginning consists in particular in that the multi-hose device has an outer hose, at least one inner hose arranged in the outer hose, and at least one connecting end to which the outer hose and the at least one inner hose are connected, the at least one connecting end having a flow opening for the outer hose, in which a receiving portion for the at least one inner hose is arranged, wherein the receiving portion surrounds the at least one inner hose over less than an entire circumference of the at least one inner hose.

[0006] This has the advantage that the complex shaping caused by the full circumferential clamping of the inner hose on the outside is avoided. Thereby, the connecting end can be manufactured more simply. In addition, less material is required in the flow cross-section of the outer hose. Therefore, an increased flow opening of the outer hose is provided.

[0007] In one design, it is provided that the receiving portion surrounds the at least one inner hose over more than half of the circumference. This ensures that the inner hose can be firmly locked in the receiving portion, which results in a stable arrangement of the inner hose relative to the outer hose and the connecting end.

[0008] In another design, it is provided that the flow opening and the receiving portion are formed by drill holes offset from each other eccentrically. Here, the drill hole of the receiving portion can be positioned such that its circumference intersects the circumference of the drill hole of the flow opening. This is a particularly simple way of manufacturing a receiving portion that surrounds the inner hose over less than a complete circumference.

[0009] In another design, it is stipulated that the at least one inner hose bears a preferably crimped hose connection, which in particular has a crimping sleeve expanding from the inside, and the hose connection is inserted into the receiving part, wherein the hose connection is made of, for example, brass or stainless steel.

[0010] By inserting the hose connection into the receiving part (the hose connection is preferably made of a material harder than the hose itself), the relative arrangement of the hose and the connecting end can be further stabilized.

[0011] In another design, it is stipulated that the hose connection is held in the receiving part by a press fit, which results in a reliable holding of the hose connection in the receiving part, which can be achieved without other devices and can thus be simply realized.

[0012] In another design, it is stipulated that a preferably circumferential retaining flange is constructed on the hose connection, and the retaining flange is supported on the connecting end. This has the advantage that the hose connection can be simply locked in the longitudinal direction on the connecting end.

[0013] In another design, it is stipulated that a settling part is constructed in the connecting end, and the hose connection or the retaining flange is fitted into the settling part. In particular, the hose connection or the retaining flange fills the depth of the settling part. This has the advantage that the hose connection can also be simply locked in the transverse direction perpendicular to the longitudinal direction on the connecting end. In addition, the hose connection can thus be inserted flatly into the receiving part, thereby creating a flat sealing surface on the receiving part or the hose connection.

[0014] In another design, it is stipulated that the connecting end has a flat end face, and the hose connection and / or the associated crimping sleeve and / or the at least one inner hose protrude beyond this end face. Thereby, components arranged on the flat end face, such as a flat sealing element, can be directionally mounted or locked on the protruding hose connection and / or the associated crimping sleeve and / or the at least one inner hose by means of corresponding cutouts or openings.

[0015] In another design, it is stipulated that a sealing element is placed on the free connecting end, and the sealing element surrounds the at least one inner hose along the entire circumference. In this way, a connection to the inner hose that is sealed relative to the outer hose can be established.

[0016] In another design, it is stipulated that the outer diameter of the at least one inner hose, in particular the associated hose connection, is smaller than the inner diameter of the flow-through opening, in particular at most half as large as this inner diameter. This ensures that the flow-through opening still has an opening communicating with the outer hose even after the inner hose is installed, and this opening additionally provides a position for accommodating at least one additional inner hose.

[0017] In another design, it is stipulated that at least two inner hoses are arranged in the outer hose, and the corresponding preferably similarly constructed receiving parts of the inner hoses are arranged spaced apart from each other, in particular opposite each other, on the flow-through opening, and / or the corresponding hose connectors are constructed separately from each other or connected to each other, in particular integrally. Thereby, the multiple inner hoses arranged in the outer hose can be individually installed and removed at the connection ends. In addition, the multiple inner hoses are connected to the connection ends without additional devices for reducing the flow-through opening and are thus arranged fixed relative to each other.

[0018] In another design, it is stipulated that at least one of the receiving parts (into which the interconnected, in particular integrally constructed, hose connectors are inserted) encloses less than half of the circumferential ring of the corresponding inner hose.

[0019] For example, one receiving part can be provided for each of the two inner hoses. These two receiving parts can be arranged opposite each other in the flow-through opening. Here, the interconnected hose connectors support each other, such that enclosing the receiving part on less than half of the circumferential ring, for example less than a quarter of the circumferential ring, is sufficient to stably hold the inner hose in the receiving part. Therefore, less drilling surface for the receiving part is required. Thus, the flow-through opening can be chosen larger.

[0020] In another design, it is stipulated that the central distance of the at least two inner hoses at the connection end is at least as large as the inner diameter of the flow-through opening. This has the advantage that after installing the two inner hoses, the inner hoses cover less surface of the flow-through opening.

[0021] In another design, it is stipulated that the outer hose has a preferably corrugated inner layer and / or a preferably braided outer layer. In this way, a multi-hose device is provided, the outer hose of which is not only flexibly bendable but also robust.

[0022] In another design, it is stipulated that the outer hose is crimped to the connection end, thereby ensuring a simple and firm connection of the outer hose to the connection end.

[0023] The invention will be described in more detail below with the aid of a plurality of preferred embodiments. Description of the Drawings

[0024] Shows:

[0025] Figure 1a And Figure 1b The first multi-hose device is shown in a three-dimensional view and a top view respectively,

[0026] Figure 2a And Figure 2b The first multi-hose device with a sealing element is shown in a three-dimensional view and a top view respectively,

[0027] Figure 3a and Figure 3b show a multi-hose device with a sealing element in an exploded view and a partial perspective view, respectively,

[0028] Figure 4a and Figure 4b show a second multi-hose device in a three-dimensional view and an exploded view, respectively,

[0029] Figures 5a to 5e show a side view of the first multi-hose device during the manufacturing process of the first multi-hose device, respectively. DETAILED DESCRIPTION

[0030] Figure 1a and Figure 1b show the multi-hose device 1 in a three-dimensional view and a top view, respectively, which has an outer hose 2, two inner hoses 3 and 3a arranged in the outer hose, and a connecting end 4. The outer hose 2 and the inner hoses 3, 3a are connected to the connecting end 4. The outer hose 2 is, for example, crimped to the connecting end 4 from the outside or by means of riveting technology. In addition, the connecting end 4 has a flow-through opening 5 for the outer hose 2. Two receiving portions 6, 6a are arranged in the flow-through opening 5. The receiving portions 6, 6a are designed in the same way. The receiving portion 6 surrounds the inner hose 3 over less than a full circumference. Similarly, the receiving portion 6a surrounds the inner hose 3a over less than a full circumference.

[0031] The flow-through opening 5 is formed along the central axis of the connecting end 4 by a hole portion in the connecting end 4. The two receiving portions 6 and 6a are formed by the hole portions, which are eccentrically offset from the hole portion of the flow-through opening 5, respectively. Here, the cross-section perpendicular to the central axis of the hole portion of the flow-through opening 5 intersects the cross-section perpendicular to the central axis of the hole portions of the receiving portions 6 and 6a, respectively. In this way, the receiving portions 6 and 6a are incomplete or open circles. By means of the open circular shape of the receiving portions 6 and 6a, the receiving portions 6 and 6a respectively surround the two inner hoses 3 and 3a over less than a full circumference, especially over more than half of the circumference as shown here (using the corresponding hose joints 7, 7a of the two inner hoses). This ensures that the two inner hoses 3 and 3a can be firmly connected to the connecting end 4, and these inner hoses will not accidentally come loose from the receiving portions 6 and 6a. Here, the inserted and crimped hose joints 7, 7a are axially pressed into the receiving portions 6, 6a. Alternatively, the inner hose 3 or 3a (having hose joints 7 and 7a here, for example) can be inserted radially outwardly into, especially pressed into, the corresponding receiving portions 6, 6a.

[0032] The connecting end has a drilled surface surrounding the flow-through opening 5 or a (drilled) flange 5a of the flow-through opening, and the drilled surface / (drilled) flange at least partially surrounds the hole portions of the two receiving portions 6 and 6a. The shown flange 5a surrounds the hole portions 6 and 6a over less than an entire circumference. Thus, the flange 5a can be designed to be thinner than a flange that surrounds the hole portions 6 and 6a over the entire circumference of the hole portions respectively. This can not only save materials but also simplify the manufacture of the multi-hose device 1. In addition, the flow-through opening 5 can be enlarged.

[0033] Furthermore, the center distance between the two inner hoses 3 and 3a at the connecting end is at least as large as the inner diameter of the flow-through opening 5. In the shown example, the center distance between the two inner hoses 3 and 3a is exactly the same as the inner diameter of the flow-through opening 5. In other words: The centers of the hole portions for receiving the two inner hoses 3 and 3a are particularly opposite each other at the edge of the hole portion for the flow-through opening 5 here. In this arrangement, it is possible to provide the receiving portions 6 and 6a for fixing the two inner hoses 3 and 3a and to provide a relatively large flow-through opening 5.

[0034] The inner hose 3 includes or carries a hose connector 7, and the opening of the hose connector receives the inner hose 3. The inner hose 3a carries a hose connector 7a, which is correspondingly constructed in the same way. The inner hose 3 and the hose connector 7 are connected by means of a crimping sleeve 8. The crimping sleeve 8 is arranged inside the inner hose 3 and inside the hose connector 7. By expanding the crimping sleeve 8, the inner hose 3 can be fixedly connected to the hose connector 7. For this purpose, the crimping sleeve 8 is made of a material softer than the hose connector 7. The hose connector 7 is made of, for example, hard metal, brass or stainless steel.

[0035] The hose connector 7 is held in the receiving portion 6. The hose connector 7 can be held in the receiving portion 6 by means of a press fit, for example. In addition, the hose connector 7 has a retaining flange, which is supported on the connecting end 4. Here, the retaining flange or the entire hose connector 7 fills the void or settling portion inside the connecting end 4. The retaining flange or the hose connector 7 ends flush with the flange 5a. In other words, the opening formed by the hose connector 7 and the flow-through opening 5 are in one flat plane. In another way of expressing it, the connecting end has a flat end face. The inner hose 3 or the crimping sleeve 8 projects beyond the flat end face. Alternatively or additionally, the hose connector 7 projects beyond the drilled surface 5a.

[0036] Figure 2a and Figure 2b shows Figure 1a and Figure 1b the multi-hose device 1 in. The same or similar features are provided with the same reference numerals. In Figure 2a and Figure 2bThe multi-hose device 1 shown in the figure includes a sealing element 9. The sealing element 9 is designed to be circular. The outer diameter of the sealing element 9 is approximately equal to the net inner diameter of the connecting end 4. The sealing element 9 has a plurality of openings, namely one opening for each of the two inner hoses 3 and 3a and an opening for the flow-through opening 5. The openings of the sealing element 9 for the inner hoses 3 and 3a surround the inner hoses 3 and 3a along the entire circumference. The inner diameter of the openings of the sealing element 9 for the inner hoses 3 and 3a is equal to the outer diameter of the corresponding crimp sleeves 8 and 8a, in particular equal to the outer diameter of the parts of the crimp sleeves 8 and 8a that protrude beyond the flat end face of the connecting end 4.

[0037] A flat sealing surface is provided by the flat end face of the connecting end 4. Thereby, the sealing function of the sealing element 9 is improved. The openings of the sealing element 9 for the inner hoses 3 and 3a surround the crimp sleeves 8, 8a or the inner hoses 3 and 3a that protrude from the flat end face of the connecting end 4. In this way, the rotational position of the sealing element 9 relative to the connecting end 4 is fixed.

[0038] In Figure 1a and Figure 1b 、 Figure 2a and Figure 2b , the hose connectors 7 and 7a are constructed separately from each other. Alternatively, the two hose connectors 7 and 7a can be connected to each other or integrally constructed. In other words, the hose connector member can include the two hose connectors 7 and 7a. Such a hose connector member can be inserted into the two receiving parts 6 and 6a at the same time. In this way, the hose connector member is supported by the two receiving parts 6 and 6a. In other words, the hose connector 7 is also supported by the hose connector 7a in addition to the receiving part 6. Thereby, the corresponding receiving parts 6 and 6a can be designed such that the receiving parts respectively surround the inner hoses 3 and 3a on less than half of the circumference, for example on less than or equal to a quarter of the circumference, without interfering with the stability of the hose connectors 7 and 7a. To put it another way: the receiving parts 6 and 6a can respectively surround a central angle of less than 180°, for example less than or equal to 90°, of the inner hoses 3 and 3a. Therefore, the flow-through opening 5 can be increased while ensuring that the hose connectors 7 and 7a are firmly held in the corresponding receiving parts 6 and 6a.

[0039] Figure 3a and Figure 3b show Figure 2a and Figure 2b an exploded view and a partial perspective view of the multi-hose device 1 in

[0040] Figure 4a and Figure 4bA three-dimensional view and an exploded view of a second embodiment of a multi-hose device 1a similar to the first multi-hose device 1 are respectively shown. The same or similar features are provided with the same reference numerals. The multi-hose device 1a includes an outer hose 2 and two inner hoses 3 and 3a arranged in the outer hose 2, and a connection end 4a. The connection end 4a has a flow-through opening 5b for the outer hose 2. A receiving portion 6b for the two inner hoses 3 and 3a is arranged in the flow-through opening 5b. In other words: the two inner hoses 3 and 3a are arranged in a common receiving portion 6b. The common receiving portion 6b surrounds the two inner hoses 3 and 3a in less than one complete circumference (here, for example, by using a common hose joint 7b). Thus, as already in Figure 1a and Figure 1b , Figure 2a and Figure 2b , Figure 3a and Figure 3b shown in the embodiments, the flow-through opening 5b is directly connected to the receiving portions 6 and 6a or 6b of the two inner hoses 3 and 3a. As shown in the figure, the common receiving portion 6b surrounds the two inner hoses 3 and 3a respectively in more than half of the circumference. In other words: the receiving portion 6a surrounds the inner hoses 3 and 3a respectively with a central angle less than 360° and greater than 180°. Alternatively, the common receiving portion 6b can surround the two inner hoses 3 and 3a respectively in less than half of the circumference.

[0041] The multi-hose device 1a includes an integrally formed hose joint member 7b, which includes two hose joints. The hose joint member 7b corresponds to two integrally connected hose joints 7 and 7a. The hose joints of the hose joint member 7b are crimped to the internally expanded crimp sleeves 8, 8a in the same manner as the hose joints 7 and 7a. The hose joint member 7b and the connection end 4a form a flat end face. As described with reference to Figure 1a and Figure 1b , Figure 2a and Figure 2b , Figure 3a and Figure 3b , the hose joint member 7b can be held in the receiving portion 6b by a press fit. The hose joint member 7b rests on the support shoulder 10 of the connection end 4a. Additionally or alternatively, the hose joint member 7b is adapted to fit into and / or fill the depth of the settling portion of the connection end 4a.

[0042] The crimp sleeve 8 or the inner hoses 3 and 3a protrude beyond the flat end face. Also shown is a sealing element 9a. The sealing element 9a respectively has an opening for the hose joint member 7b or the inner hoses 3 and 3a and the opening of the flow-through opening 5b, wherein the opening of the sealing element 9a for the inner hoses 3 and 3a also cooperates with the protruding crimp sleeves 8 and 8a.

[0043] Furthermore, a locking element 11 is shown which engages not only into the opening in the connection end 4a but also into or fills the opening in the sealing element 9a. Thereby, the position or rotational position of the circular sealing element 9a relative to the connection end 4a can be locked.

[0044] Figures 5a to 5e shown in Figure 1a and Figure 1b 、 Figure 2a and Figure 2b 、 Figure 3a and Figure 3b the manufacturing process of the multi-hose device 1 shown therein. Identical or similar features are provided with the same reference numerals.

[0045] The first step ( Figure 5a ) includes: connecting the outer hose 2 to the connection end 4, in particular by crimping. In particular, the outer sleeve 12 can be pressed against the inner sleeve 13 of the connection end 4. The outer hose 2 is arranged between the outer sleeve 12 and the inner sleeve 13.

[0046] Accordingly, the first step includes: mounting the outer hose 2 onto the connection end 4, wherein two inner hoses 3, 3a are arranged in the outer hose 2. In particular, the first step includes: introducing the outer hose 2 into the connection end 4.

[0047] The second step includes: crimping the inner hoses 3 and 3a to the hose connectors 7, 7a respectively by means of crimping sleeves 8, 8a. In particular, the second step includes (i): introducing the inner hoses 3 and 3a into the hose connectors 7 and 7a (see Figure 5b ), (ii) inserting the crimping sleeves 8 and 8a into the inner hoses 3 and 3a and into the hose connectors 7 and 7a, and (iii) expanding the crimping sleeves 8 and 8a to crimp the inner hoses 3 and 3a to the hose connectors 7, 7a respectively. Thus, the illustration of Figure 5c is obtained.

[0048] The third step ( Figure 5d ) particularly includes: press-fitting the hose connectors 7, 7a of the inner hoses 3 and 3a into the corresponding receiving parts 6 and 6a of the connection end 4.

[0049] Subsequently ( Figure 5e ) the threaded sleeve 14 can be pushed on. The connection end 4 can also be configured for other connection methods, such as plug connection or bayonet connection.

[0050] As Figures 5a to 5e shown, the outer hose 2 has a braided outer layer. Furthermore, the outer hose 2 has a corrugated inner layer (not shown).

[0051] In Figures 1a to 5eWhat the two embodiments shown have in common is that the outer diameters of the two inner hoses 3 and 3a are respectively smaller than the net inner diameter of the outer hose 2, in particular smaller than half of the net inner diameter of the outer hose 2. In this way, more than one inner hose, two inner hoses in the example shown, are in place in the outer hose 2.

[0052] List of reference numerals

[0053] 1 (first) multi-hose device,

[0054] 1a (additional) multi-hose device,

[0055] 2 outer hose,

[0056] 3 first inner hose,

[0057] 3a second inner hose,

[0058] 4 first connection end,

[0059] 4a second connection end,

[0060] 5 first flow-through opening,

[0061] 5a flange of the flow-through opening,

[0062] 5b second flow-through opening,

[0063] 6 first receiving part,

[0064] 6a second receiving part,

[0065] 6b third receiving part or common receiving part,

[0066] 7 first hose fitting,

[0067] 7a second hose fitting,

[0068] 7b hose fitting (component),

[0069] 8 first crimping sleeve,

[0070] 8a second crimping sleeve,

[0071] 9 first sealing element,

[0072] 9a second sealing element,

[0073] 10 support shoulder of the connection end,

[0074] 11 locking element,

[0075] 12 outer sleeve,

[0076] 13 inner sleeve,

[0077] 14 threaded sleeve,

[0078] 15 Retaining flange.

Claims

1. Multi-hose device, having an outer hose (2), at least one inner hose (3, 3a) arranged in the outer hose (2), and at least one coupling end (4, 4a), the outer hose (2) and the at least one inner hose (3, 3a) being connected to the coupling end, characterized in that, The at least one connecting end (4, 4a) has a flow-through opening (5, 5b) for the outer hose (2) and a flange (5a) surrounding the flow-through opening (5, 5b), and a receiving portion (6, 6a, 6b) for the at least one inner hose (3, 3a) is arranged in the flow-through opening, wherein the receiving portion surrounds the at least one inner hose (3, 3a) over less than an entire circumference, wherein the at least one inner hose (3, 3a) bears a hose connection (7, 7a, 7b), and the hose connection is inserted into the receiving portion, wherein a settling portion is constructed in the connecting end (4, 4a), and the depth of the settling portion is filled by the hose connection (7, 7a, 7b) such that the hose connection (7, 7a, 7b) ends flush with the flange (5a) and forms a flat end face of the connecting end (4, 4a) with the flange (5a).

2. The multi-hose device according to claim 1, characterized in that, The receiving portion (6, 6a, 6b) surrounds the at least one inner hose (3, 3a) over more than half of the circumference.

3. The multi-hose device according to claim 1 or 2, characterized in that, The flow-through opening and the receiving portion are formed by drill holes offset from each other eccentrically.

4. The multi-hose device according to claim 1 or 2, characterized in that, The hose connections (7, 7a, 7b) are crimped.

5. The multi-hose device according to claim 1 or 2, characterized in that, An internally expanding crimping sleeve (8, 8a) is arranged inside the hose connection.

6. The multi-hose device according to claim 1 or 2, characterized in that The hose connections (7, 7a, 7b) are made of brass or stainless steel.

7. The multi-hose device according to claim 1 or 2, characterized in that, The hose connections (7, 7a, 7b) are held in the receiving portion (6, 6a, 6b) by a press fit.

8. The multi-hose device according to claim 1 or 2, characterized in that, A retaining flange (15) is constructed on the hose connection, and the retaining flange abuts on the connecting end.

9. The multi-hose device according to claim 8, wherein The retaining flange (15) is constructed to be circumferential.

10. The multi-hose device according to claim 8, wherein, The retaining flange fits into the settling portion.

11. The multi-hose device according to claim 10, characterized in that, The retaining flange (15) fills the depth of the settling portion.

12. The multi-hose device according to claim 1 or 2, characterized in that, An internally expanding crimping sleeve (8, 8a) is arranged inside the hose connection, and the crimping sleeve projects beyond the flat end face of the connecting end (4, 4a).

13. The multi-hose device according to claim 1 or 2, characterized in that, A sealing element (9, 9a) is placed on the free connecting end (4, 4a), and the sealing element surrounds the at least one inner hose (3, 3a) along the entire circumference.

14. The multi-hose device according to claim 1 or 2, characterized in that, The outer diameter of the at least one inner hose (3, 3a) is smaller than the inner diameter of the flow-through opening (5, 5b).

15. The multi-hose device according to claim 1 or 2, characterized in that, The outer diameter of the hose connection (7, 7a, 7b) is smaller than the inner diameter of the flow-through opening (5, 5b).

16. The multi-hose device according to claim 14, wherein The outer diameter of the at least one inner hose (3, 3a) is at most half as large as the inner diameter of the flow-through opening (5, 5b).

17. The multi-hose device according to claim 1 or 2, characterized in that, At least two inner hoses (3, 3a) are arranged in the outer hose (2), and the respective receiving portions of the at least two inner hoses are arranged spaced apart from each other on the flow-through opening, and / or the respective hose connections (7, 7a, 7b) are constructed separately or connected to each other.

18. The multi-hose device according to claim 17, wherein, The respective receiving portions of the at least two inner hoses are of the same type of construction.

19. The multi-hose device according to claim 17, wherein The respective receiving portions of the at least two inner hoses are arranged opposite each other on the flow-through opening.

20. The multi-hose device according to claim 17, wherein The respective hose connections are integrally constructed.

21. The multi-hose device according to claim 17, characterized in that, At least one of the receiving parts surrounds less than a half circumference of the corresponding inner hose, and the interconnected hose connectors are inserted into the at least one receiving part.

22. The multi-hose device according to claim 17, wherein The central distance of the at least two inner hoses (3, 3a) at the connection end is at least as large as the inner diameter of the flow-through opening.

23. The multi-hose device according to claim 1 or 2, characterized in that, The outer hose (2) has an inner layer and / or an outer layer.

24. The multi-hose device according to claim 23, wherein The inner layer is corrugated, and / or the outer layer is braided.

25. The multi-hose device according to claim 1 or 2, characterized in that, The outer hose (2) is crimped to the connection end.

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