DE202022104299U1 - Hose and hose connection arrangement - Google Patents

Abstract

Hose (1), which has a retaining brim (3) on a retaining end (2), characterized in that the hose (1) consists at least partially of a thermoplastic material, and that the retaining brim (3) is formed by thermally forming the retaining end (2 ) is formed, and that the hose (1) has a reinforcement (4).

Description

The invention relates to a hose which has a holding brim on one holding end.

The invention further relates to a hose connection arrangement with at least one hose receptacle.

Such hoses are known and are used to be hooked into a correspondingly shaped hose receptacle. Further parts for determining a position of the hose in the hose holder can then be dispensed with.

The object of the invention is to improve the performance properties of such hoses and to simplify their production.

To solve the stated problem, the features of claim 1 are provided according to the invention. In particular, in order to solve the stated problem for hoses of the type described above, it is proposed according to the invention that the hose consists at least partially of a thermoplastic material and that the holding brim is formed by means of thermal deformation of the holding end, and that the hose has reinforcement.

The material of the hose can therefore be chosen so that the holding brim can be formed by thermally forming the holding end. Another advantage is that a longer hose can first be produced, for example by means of extrusion, with retaining brims being able to be molded onto subsequently produced sections of this hose. This means that the holding brim can be formed independently of and at a later point in time than the production of the hose. The use of reinforcement can increase the stability of the hose.

In an advantageous embodiment it can be provided that the reinforcement continues into the holding brim.

The stabilizing effect of the reinforcement can therefore also work in the area of the retaining brim. The hold of the hose in a hose holder by means of its retaining brim can thus be increased.

Alternatively or additionally, it can be provided that the reinforcement in the holding brim expands.

The reinforcement can therefore follow the increasing cross-section or the cross-sectional area of the hose in the area of the holding brim.

In an advantageous embodiment it can be provided that the reinforcement is thermally deformed in the area of the holding brim. This can be an expansion of the reinforcement, for example as already described.

This means that the reinforcement can be deformed during the thermal shaping of the holding brim. It is therefore not necessary to apply the reinforcement to the already thermally deformed hose. The production of the hose can thus be simplified.

In an advantageous embodiment it can be provided that the preferably wound reinforcement is located on an inner tube of the hose.

The reinforcement can therefore protect and support an inner hose from the outside.

Alternatively or additionally, it can be provided that the preferably wound reinforcement is located under an outer layer of the hose.

The reinforcement itself can therefore be protected by a layer of material. This means that shifting of the reinforcement can be avoided. For example, it can be prevented that the reinforcement can be pulled off the hose.

In an advantageous embodiment it can be provided that the hose contains polyethylene as a material component. This material component can be, for example, a main component.

Thus, a thermoplastic material can be used for the hose. For example, a non-toxic material can be used that meets regulatory requirements with regard to drinking water, for example. Polyethylene with increased temperature resistance can also be used here. This is preferably used for the inner hose. However, ultra-low density polyethylene can also be used. This is preferably used for the outer layer of the hose. Different polymers can also be used for the hose. Copolymers can also be used here. The various components of the hose, in particular the inner hose, reinforcement and outer layer of the hose, can thus be produced with the desired properties through the choice of material.

In an advantageous embodiment it can be provided that the inner tube is made of an uncrosslinked polymer.

The inner tube can therefore be made from a pure chemical substance. Additives that promote cross-linking of the polymer or physical and/or chemical effects on the hose that lead to cross-linking but can also leave undesirable residues in the hose can be avoided in this way. Any losses in the structural stability of the resulting inner tube can be offset by the reinforcement and/or the outer layer of the tube.

In an advantageous embodiment, it can be provided that a radially acting tie rod is formed on the holding brim. This tie rod can be a circumferential groove and/or a circumferential rib. It can also be provided that the reinforcement extends radially into the tie rod.

This means that the hose can be prepared for hanging into a hose connection. This can prevent the hose from being pulled off from a hose connection. This means that a certain fluid pressure can be applied to the hose without the hose tearing off from its suspension.

A hose can be produced, for example, by means of a method in which an inner hose is manufactured, a reinforcement is applied to the inner hose, an outer layer is applied to the inner hose, and a retaining brim is thermally formed onto a retaining end of the hose.

In particular, this can be a hose as described above or according to one of the claims directed to a hose. The inner tube can be manufactured in particular by extrusion. The reinforcement can be applied in particular by winding it up. The outer layer can be applied to the inner tube in particular by extrusion. By applying the outer layer to the inner tube, the reinforcement can be enclosed between the inner and outer tubes.

Hoses according to the invention can therefore be produced in a simple manner. In particular, it is possible to simultaneously reshape the reinforcement of the hose during the thermal forming process. The production of the hose and the forming can take place in separate process steps. For example, a longer tube can first be cut into pieces and then formed.

Applying the reinforcement to the inner tube by winding is particularly advantageous in order to combine the extrusion process of the inner tube with the application of the reinforcement. If braided reinforcement is used, the braiding is usually much slower than the extrusion of the inner tube. If the reinforcement is wound up, this can be done at a similar speed as the extrusion of the inner tube. These two process steps can therefore take place at the same time. Any lower structural stability of a wound reinforcement compared to a braided reinforcement can be compensated for by extruding an outer layer.

In an advantageous embodiment, it can be provided that a radially acting tie rod is formed on the holding brim while it is being formed. This tie rod can be shaped as a circumferential groove and/or as a rib. The reinforcement can extend radially into the tie rod.

This means that the hose can be prepared for hanging into a hose connection. This can prevent the hose from being pulled off from a hose connection. This means that a certain fluid pressure can be applied to the hose without the hose tearing off from its suspension.

In an advantageous embodiment it can be provided that the hose contains polyethylene as a material component. This material component can be, for example, a main component.

Thus, a thermoplastic material can be used for the hose. For example, a non-toxic material can be used that meets regulatory requirements with regard to drinking water, for example. Polyethylene with increased temperature resistance can also be used here. This is preferably used for the inner hose. For example, stretched polyethylene fibers can be used, which preferably form the reinforcement. However, ultra-low density polyethylene can also be used. This is preferably used for the outer layer of the hose. If the inner hose, reinforcement and outer hose are made from the same material, this can enable or simplify the reuse or recycling of the hoses. Different polymers can also be used for the hose. Here you can Copolymers can also be used. The various components of the hose, in particular the inner hose, reinforcement and outer layer of the hose, can thus be produced with the desired properties through the choice of material.

In an advantageous embodiment it can be provided that the inner tube is made of an uncrosslinked polymer.

The inner tube can therefore be made from a pure chemical substance. Additives that promote cross-linking of the polymer or physical and/or chemical effects on the hose that lead to cross-linking but can also leave undesirable residues in the hose can be avoided in this way. Any losses in the structural stability of the resulting inner tube can be offset by the reinforcement and/or the outer layer of the tube.

In an advantageous embodiment, it can be provided that the tube is cut to size after the outer layer has been extruded. Alternatively or additionally, it can be provided that the hose is cut to size before the retaining brim is formed.

The hose with reinforcement enclosed between the inner hose and the outer layer can therefore be produced separately from the forming step. Such a hose is usually manufactured at a much higher speed than the retaining brim is formed. It is therefore advantageous to separate these two production steps from each other.

In an advantageous embodiment it can be provided that the reinforcement is made of a thermoplastic material.

This enables a particularly simple reshaping and/or expansion of the reinforcement during the thermal shaping of the holding brim.

In an advantageous embodiment, it can be provided that the reinforcement in the area of the holding brim is completely enclosed in the inner tube while the holding brim is being formed. Alternatively or additionally, it can be provided that the reinforcement in the area of the holding brim is completely enclosed in the outer layer while the holding brim is being formed.

Thus, the reinforcement in the area of the holding brim can be completely enclosed in the material of the inner tube or the outer layer during the forming of the holding brim. Contact of the reinforcement with the fluid can thus be prevented. It is possible to use a material for the reinforcement that is not suitable for contact with the fluid. Reasons for this could be, for example, regulatory requirements. For example, during the forming step, the material of the inner tube and/or the outer layer can overflow beyond the reinforcement that is flush with the inner tube and/or the outer layer in the not yet formed tube, and thus enclose the reinforcement.

Different sections of the reinforcement can be partially or completely enclosed in the inner tube, in the outer layer, between the inner tube and the outer layer, or also in an area in which the material of the inner tube and the outer layer has mixed during the thermal forming. Depending on the actual design of the process, the material boundary between the inner tube and the outer layer can run to one side of the reinforcement or through the area of the tube occupied by the reinforcement. It may also be the case that the material boundary can no longer be clearly defined after thermal forming.

Alternatively or additionally, the features of the independent claim directed to a hose connection arrangement are provided according to the invention to solve the stated problem. In particular, in order to solve the stated problem in hose connection arrangements of the type described above, it is proposed according to the invention that they include at least one hose receptacle and at least one hose according to the invention, the hose being suspended on one of the hose receptacles.

The advantages of the hose according to the invention, which can be produced, for example, using a method as described, can thus be used with a hose connection arrangement.

The invention will now be described in more detail using an exemplary embodiment, but is not limited to the exemplary embodiment. Further exemplary embodiments result from combining the features of individual or several claims with one another and/or with individual or several features of the exemplary embodiment.

• 1 einen erfindungsgemäßen Schlauch in einer perspektivischen Schnittansicht,
• 2 den Schlauch aus 1 in einer Schnittansicht,
• 3 den Schlauch aus den 1 und 2 in einer perspektivischen Ansicht,
• 4 eine erfindungsgemäße Schlauchanschlussanordnung,
• 5 die Schlauchaufnahme der Schlauchanschlussanordnung aus 4 in einer perspektivischen Schnittansicht,
• 6 eine erfindungsgemäße Schlauchanschlussanordnung in Verwendung mit einer Funktionseinheit,
• 7 einen vergrößerten Ausschnitt aus 6.

It shows:

• 1 a hose according to the invention in a perspective sectional view,
• 2 the hose 1 in a sectional view,
• 3 the hose out 1 and 2 in a perspective view,
• 4 a hose connection arrangement according to the invention,
• 5 the hose receptacle of the hose connection arrangement 4 in a perspective sectional view,
• 6 a hose connection arrangement according to the invention in use with a functional unit,
• 7 an enlarged section 6 .

1 shows a hose 1 according to the invention with a holding brim 3 formed on a holding end 2, the hose 1 being at least partially made of a thermoplastic material and the holding brim 3 being formed on the holding end 2 by means of thermal deformation. The hose 1 also has a reinforcement 4.

In the in 2 In the sectional view of the hose 1 shown, it can be seen particularly well that the reinforcement 4 continues into the holding brim 3 and widens in the holding brim 3. Here it is the case that the reinforcement 4 is thermally deformed and expanded in the area of the holding brim 3. The reinforcement 4 is wound on an inner tube 5 and is located under an outer layer 6 of the tube 1.

The hose 1 contains polyethylene as a material component, namely as a main component. The inner tube 5 is made of polyethylene with increased temperature resistance and the outer layer 6 is made of ultra-low density polyethylene. The inner tube 5 can be made from an uncrosslinked polymer.

In 2 It can also be seen that a radially acting tie rod 7 is formed on the holding brim 3 in the form of a circumferential groove 8 and a rib 9. The reinforcement 4 extends radially into the tie rod 7.

3 shows a perspective view of this hose 1 produced using a process. As part of this process, an inner hose 5 was first extruded, onto which the reinforcement 4 was wound, after which the outer layer 6 was extruded onto the inner hose 5 provided with the reinforcement 4. The holding brim 3 was then thermally molded onto the holding end 2 of the hose 1.

As part of this process, the radially acting tie rod 7, consisting of a circumferential groove 8 and rib 9, was also formed so that the reinforcement 4 extends radially into the tie rod 7.

In the process, polyethylene was used as a material component, namely a main component, namely polyethylene of increased temperature resistance for the inner tube 5 and ultra-low density polyethylene for the outer layer 6.

The material used for the inner tube 5 can be an uncrosslinked polymer.

As part of the production of the hose 1 shown using a process, the hose 1 was also cut to size after the outer layer 6 was extruded and before the retaining brim 3 was formed.

As part of this process, the reinforcement 4 was made from a thermoplastic material, so that the reinforcement 4 could be thermally deformed and expanded particularly easily in the area of the holding brim 3.

During the process, the reinforcement 4 in the area of the holding brim 3 was also completely enclosed between the inner tube 5 and the outer layer 6 during the formation of the holding brim 3. This is particularly in 2 to recognize.

4 shows a hose connection arrangement 10 according to the invention with a plate 11 which has three hose receptacles 12. A hose 1 is suspended in each of the hose receptacles 12. It can be seen that the retaining brims 3 of the hoses 1 are flush with the plate 11 with their respective sealing surfaces 18.

In the in 5 In the sectional view shown of the plate 11 with the hose receptacles 12, it can be seen that a support surface 13 on the hose receptacle 12 corresponds to the particularly well in 2 retaining brim 3 of the hose 1 that can be recognized is formed. The support surface 13 forms a radially acting counter tie rod 14 to the tie rod 7 of the hose 1.

6 shows the use of a hose connection arrangement 10 according to the invention with a hose receptacle 12 together with a functional unit 15, which is a valve 16. Here, the valve 16 is placed flush against the plate 11 and also includes a sealing element 17. The hose receptacle 12 is adapted to the hose 1 in such a way that it with its retaining brim in the hose receptacle 12 and thus also the plate 11 can be hung so that the holding brim 3 is flush with the plate 11. It is therefore possible to place the valve 16 flush with the plate 11 and thereby press the holding brim 3 against the support surface 13 on the hose receptacle 12.

Here, the sealing element 17 of the valve 16 is pressed against a sealing surface 18 of the retaining brim 3. In the exemplary embodiment shown, the valve has a cylindrical channel 19, which forms an extension of the interior 20 of the hose 1.

The conditions in the contact area between the hose connection arrangement 10 and the functional unit 15 are particularly in the in 7 magnification shown.

It is therefore proposed to provide a hose 1 with a holding brim 3 provided on a holding end 2, the hose 1 being at least partially made of a thermoplastic material and the holding brim 3 being formed by means of thermal deformation of the holding end 2, and the hose 1 being a Has reinforcement 4. In addition, a hose connection arrangement 10 with a hose 1 suspended on a hose receptacle 12 is proposed.

Reference symbol list

1

Hose

2

holding end

3

retaining brim

4

reinforcement

5

Inner tube

6

Outer layer

7

tie rod

8th

Nut

9

rib

10

Hose connection arrangement

11

plate

12

Hose holder

13

Support surface

14

Counter tie anchor

15

Functional unit

16

Valve

17

Sealing element

18

sealing surface

19

channel

20

inner space

Claims (8)

Hose (1), which has a retaining brim (3) on a retaining end (2), characterized in that the hose (1) consists at least partially of a thermoplastic material, and that the retaining brim (3) is formed by thermally forming the retaining end (2 ) is formed, and that the hose (1) has a reinforcement (4). Hose (1) according to the preceding claim, characterized in that the reinforcement (4) continues into the holding brim (3) and/or widens in the holding brim (3). Hose (1) according to one of the preceding claims, characterized in that the reinforcement (4) is thermally deformed, in particular expanded, in the area of the holding brim (3). Hose (1) according to one of the preceding claims, characterized in that the preferably wound reinforcement (4) is located on an inner hose (5) and/or under an outer layer (6) of the hose (1). Hose (1) according to one of the preceding claims, characterized in that the hose (1) contains polyethylene as a material component, in particular a main component, in particular polyethylene with increased temperature resistance preferably for the inner hose (5) and / or polyethylene fibers for the reinforcement ( 4) and/or ultra-low density polyethylene is preferably used for the outer layer (6). Hose (1) according to one of the preceding claims, characterized in that the inner tube (5) is made of an uncrosslinked polymer. Hose (1) according to one of the preceding claims, characterized in that a radially acting tie rod (7), in particular as a preferably circumferential groove (8) and / or rib (9), is formed on the retaining brim (3), in particular where the reinforcement (4) extends radially into the tie rod (7). Hose connection arrangement (10) with at least one hose receptacle (12), and with at least one hose (1) according to one of Claims 1 until 7 , whereby the hose (1) is suspended on a hose holder (12).

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