Connecting device for valve device and valve device having such connecting device

Abstract

According to the invention, a connecting device for a valve device is provided. The invention relates to a valve device comprising a tubular portion wherein one end of the tubular portion comprises a connecting portion or an adapter for connecting to the end of the valve device, and wherein the connecting portion comprises sealing means for sealingly abutting against a closing element or a control element of the valve device.

Description

[0001] The present invention relates to a connecting device or adapter for a valve device and a valve device having such a connecting device.

[0002] The problem solved by the present invention is to provide a connecting device for a valve device and a valve device having such a connecting device that represents an alternative to the adapters and valve devices known from the prior art.

[0003] Another problem solved by the present invention is to design a connecting device for a valve device and a valve device having such a connecting device that is constructed in a compact manner.

[0004] Furthermore, the problem solved by the present invention is to provide a connecting device for a valve device and a valve device having such a connecting device that can be constructed in a modular manner and adapted to valve devices of almost all specifications.

[0005] In addition, the problem solved by the present invention is to provide a connecting device for a valve device and a valve device having such a connecting device that is simply constructed and safe and reliable in operation.

[0006] One or more of these problems are solved by the features of independent claims 1, 7, and 10. Advantageous configurations are specified in the corresponding dependent claims.

[0007] According to the present invention, there is provided a connecting device for a valve device. It includes

[0008] a tubular part, wherein one end of the tubular part includes a connecting part or adapter for connecting to the end of a valve device, and wherein

[0009] the connecting part includes a sealing device for sealingly abutting against a closing element or control element of the valve device.

[0010] Valve seals known from the prior art are usually formed of multiple parts and need to be installed in the corresponding ends of the valve device in separate working steps.

[0011] Therefore, such ends are usually fixedly connected to the housing device of the valve device.

[0012] All changes or adjustments regarding changes in the direction of flow or other configurations of the ends (such as bends or branches) usually require changing the tools of the corresponding manufacturing equipment for manufacturing the valve device.

[0013] Therefore, in the case of inserting a separate seal into the housing device of the valve device, another assembly step is required.

[0014] According to the present invention, on the other hand, provided is a valve device, in particular a housing device of a valve device, and a corresponding connecting device or fluid end for such a valve device, which are formed or manufactured as two separate parts.

[0015] Since the connecting part includes a sealing device for sealingly abutting against a closing element of the valve device, the connecting device is configured to receive the side of the sealing element facing the closing element or the control element (preferably a spherical control element).

[0016] The sealing device is preferably a seal made of an elastomeric sealing material (e.g., TPE). This sealing device performs an internal valve sealing function between the control element and the corresponding connecting device or end.

[0017] With the combination of the connecting device having such a sealing device, the housing device of the valve device can be designed more compactly or in a more space-saving manner, because when assembling the connecting device and the valve device, the corresponding components require less design space.

[0018] In addition, the valve structure according to the present invention is modular in design, because a wide variety of ends in terms of type, size and orientation can be easily connected to the housing device of the valve device.

[0019] The end face of the sealing device can be configured convexly or concavely at least in the state of sealingly abutting against the closing element.

[0020] This convex or concave configuration of the end face of the sealing device, where the curvature of the convex or concave end face substantially corresponds to the curvature of the control element (spherical closing body), enables a safe and reliable seal of the corresponding end against the control element.

[0021] Additionally and / or alternatively, the material for manufacturing the sealing device can also be correspondingly flexible, such that the convex or concave formation of the end face can be achieved by abutting against the control element or the closing element.

[0022] According to a first aspect, the sealing device can be configured to sealingly abut against the closing element only in the axial direction.

[0023] Then it can be preferably provided that the connecting device is sealingly connected to the end of the valve device by means of plastic welding.

[0024] According to another aspect, the sealing device can be configured for sealingly abutting against the closing element in the axial direction and for sealing, in particular radially sealing, against the end of the valve device.

[0025] In this case, then it can be preferably provided that the connecting device can be connected to the housing device of the valve device via a connecting member (e.g., via a snap member).

[0026] Thus, the connecting device may include a connecting member for connecting to a valve device, in particular to an end of the valve device.

[0027] The connecting member may be configured for a force-fit, material-fit and / or form-fit connection, wherein the connecting member is configured, for example, as a snap connection or a sacrificial profile for plastic welding.

[0028] In this way, the connecting device can be connected to the valve device in a space-saving and sealed manner, easily, safely and reliably.

[0029] The sealing device may be connected to the tubular part of the connecting device, preferably by means of a force-fit, material-fit and / or form-fit connection to the tubular part of the connecting device, wherein the connecting device is manufactured by a two-component injection molding method.

[0030] By means of a corresponding two-component injection molding method, the connecting device according to the invention or its tubular part comprising a connecting part and a sealing device can be produced in a simple manner in a single manufacturing process.

[0031] Furthermore, according to the invention, there is provided a valve device, in particular a valve device having a connecting device as described above. It comprises

[0032] a housing device having at least two ends,

[0033] a closing element arranged in the housing device, and

[0034] a connecting device, wherein only the connecting device comprises a sealing device for sealing the connecting device against the closing element.

[0035] The advantages of the valve device according to the invention correspondingly correspond to the advantages described above with respect to the connecting device according to the invention.

[0036] The sealing device may be configured to seal against an end of the valve device, in particular a radial seal.

[0037] The connecting device may be connected to the housing device or an end of the housing device of the valve device by means of plastic welding and / or by means of a snap device.

[0038] Furthermore, according to the invention, there is provided a method for connecting a connecting device to an end of a valve device. It comprises the following steps:

[0039] introducing the connecting device, in particular in the axial direction, into an end of the valve device,

[0040] The connecting device is sealed against the closing element of the valve device only via the sealing device of the connecting device.

[0041] The advantages of the method according to the invention correspondingly correspond analogously to the above advantages based on the advantages of the connecting device according to the invention.

[0042] The present invention will be described in further detail below based on the exemplary embodiments shown in the figures. The figures show:

[0043] Figure 1 is a schematic cross-sectional view of a valve device according to the invention having three connecting devices,

[0044] Figure 2 is Figure 1 another schematic cross-sectional view of the valve device of

[0045] Figure 3 is Figure 1 another schematic cross-sectional view of the valve device of

[0046] Figure 4 is a schematic cross-sectional view of a detail view of the connecting device,

[0047] Figure 5 is another schematic cross-sectional view of a detail view of the connecting device,

[0048] Figure 6 is a schematic side cross-sectional view of a connecting device according to a first exemplary embodiment,

[0049] Figure 7 is a schematic perspective view of a connecting device according to a second exemplary embodiment,

[0050] Figure 8 is shown in a side cross-sectional view Figure 7 of

[0051] Figure 9 is a schematic perspective view of a connecting device according to the invention according to a second exemplary embodiment,

[0052] Figure 10 is shown in a side cross-sectional view Figure 9 of

[0053] Figure 11 is a schematic perspective view of a connecting device according to the invention according to a third exemplary embodiment,

[0054] Figure 12 is a schematic cross-sectional view of a detail view of a connecting device according to a third exemplary embodiment,

[0055] Figure 13 is a schematic side view of a connecting device according to a third exemplary embodiment

[0056] Figure 14 is shown in a) rear view and b) front view Figure 13 of the connecting device, where the front view places the connecting piece and the valve device in the foreground, and the rear view shows the opposite end of the connecting device,

[0057] Figure 15 is a schematic isometric view of the connecting device according to the third exemplary embodiment shown in a) rear view and b) front view,

[0058] Figure 16 is a schematic isometric view of the connecting device according to the third exemplary embodiment, where there is no sealing device, and

[0059] Figure 17 is a schematic isometric view of the sealing device according to the third exemplary embodiment shown in a) rear view and b) front view.

[0060] Hereinafter, the connecting device 1 according to the present invention and the valve device 2 having at least two such ends 1 according to the present invention are described in more detail ( Figures 1-10 ).

[0061] The connecting device 1 includes a tubular part 3 or a pipe part.

[0062] One end of the tubular part 3 forms a connecting part 4 for connecting to the end 5 of the valve device 2.

[0063] The tubular part 3 of the connecting device 1 is formed of a hard component, in particular of a plastic (such as PPA or PA66).

[0064] The sealing device 6 is formed of a soft component, such as an elastomeric material such as TPE.

[0065] The connecting device 1, the tubular part 3 and the sealing device 6 connected thereto are manufactured by a two-component injection molding process.

[0066] According to the present exemplary embodiment, the sealing device 6 is substantially tubular, where the sealing device includes an axial part 7 and a radial part 8 connected to the axial part.

[0067] On the end face of the sealing device, the axial part 7 faces the axial direction 9 and is at least convexly or concavely configured in a state where it abuts against the closing element or control element 10 of the valve device 2.

[0068] The radial part 8 circumferentially surrounds the connecting part 4 and extends radially parallel to the axial direction 9 and is configured to abut against the corresponding end 5 of the valve device 2 in a radially sealed manner.

[0069] Via an undercut recess formed in the connecting part 4, the sealing device 6 can be connected to the tubular part 3 in a form-fitting and material-fitting manner by means of a two-component injection molding process.

[0070] Furthermore, the connecting device 1 includes a connecting member 11 for connecting to the end 5 of the valve device 2.

[0071] According to a first aspect of the connecting device 1 ( Figure 6 ), the connecting member 11 can be configured as a snap member 12, and a correspondingly configured opposing snap member 13 is then provided in the end 5 of the valve device 2.

[0072] According to a second aspect, the connecting member 11 can be configured as a sacrificial profile 13 extending tangentially circumferentially and radially, so as to sealingly connect the connecting device 1 to the end 5 of the valve device 2 by means of plastic welding, in particular by means of ultrasonic or laser welding.

[0073] For example, the valve device 2 can include four ends 5, and one connecting device 1 is inserted into three of the four ends 5.

[0074] As already described above, the connecting device 1 can have a snap member 12 and a correspondingly configured opposing snap member.

[0075] Furthermore, the valve device 2 includes a functional space 15 in which corresponding closing elements or control elements 10 or a spherical valve body are arranged for controlling and adjusting the flow through the valve device 2.

[0076] Furthermore, according to the present invention, a method for connecting the connecting device 1 to the end 5 of the valve device 2 is provided. It includes the following steps:

[0077] Introduce the connecting device 1 into the end 5 of the valve device 2 in the axial direction 9,

[0078] Seal the connecting device 1 against the closing element 10 of the valve device 2 only via the sealing device 6 of the connecting device.

[0079] Connect the connecting device 1 to the end 5 of the valve device 2 via the corresponding connecting member 11 by means of the snap member 12 and the opposing snap member 13 and / or by means of the sacrificial profile 14 and the corresponding plastic welding.

[0080] According to the third exemplary embodiment, the sealing device 6 is substantially rectangular, wherein the sealing device 6 comprises two parts (FIG. 17). The sealing device 6 is concavely configured in the front side part 16 in the sealing abutment state. The forming part 17 is formed adjacent to the front side part 16 and is composed of at least two continuous sealing lips, which are three continuous sealing lips in this example. Therefore, the front side part 16 can be more easily positioned on the closing element 10. On the one hand, the position of the front side part 16 can be varied (bellows effect). On the other hand, at least two sealing lips can be more easily inserted into the connecting part 4 of the valve device 2 because, despite having the same sealing effect, at least two sealing lips of smaller size exhibit less frictional resistance than a sealing lip of larger size.

[0081] According to the third exemplary embodiment, the connecting device 1 transitions from the rectangular shape of the sealing device 6 into the tubular part 3 in the distal direction of the connecting part 4 ( Figure 11 ). The sealing device 6 comprises a connecting member 11 adjacent to the forming part 17. In this example, the connecting member 11 is configured as a radially circumferential snap groove 18 ( Figures 11 to 16 ). The snap groove 18 is configured to snap into a corresponding configured opposing snap member 13 of the valve device 2. The snap connection is fixed by means of a clip such that the connecting device 1 remains in the snapped position.

[0082] According to the fourth exemplary embodiment, the connecting member 11 (which can be configured similarly, for example, to the connecting member 11 according to the first exemplary embodiment, the second exemplary embodiment or the third exemplary embodiment) is integrally formed into the end 5 of the valve device 2. These connecting members 11 are configured to engage in connection with a corresponding profile of the connecting device 1.

[0083] List of reference numerals

[0084] 1 Connecting device

[0085] 2 Valve device

[0086] 3 Tubular part

[0087] 4 Connecting part

[0088] 5 End

[0089] 6 Sealing device

[0090] 7 Axial part

[0091] 8 Radial part

[0092] 9 Axial direction

[0093] 10 Closing element

[0094] 11 Connecting member

[0095] 12 Snap component

[0096] 13 Opposite snap component

[0097] 14 Sacrificial profile

[0098] 15 Functional space

[0099] 16 Front part

[0100] 17 Forming part

[0101] 18 Snap groove

Claims

1. A connection device for a valve device, comprising: a tubular portion, wherein one end of the tubular portion forms a connecting portion for connecting to an end of a valve device, wherein The connecting part comprises sealing means for sealingly abutting against a closing element (control element) of the valve device.

2. The connection device according to claim 1, Features The end face of the seal is convex or concave, at least in the state in which it is in sealing abutment against the closure element.

3. The connection device according to claim 1 or 2, Features The sealing device is configured only for sealing abutment against the closure element in the axial direction.

4. The connection device according to claim 1 or 2, Features The sealing device is configured for sealing abutment against the closure element in the axial direction and for sealing, in particular radially sealing, opposite an end of the valve device.

5. The connection device according to any one of claims 1 to 4, Features The connection device comprises a connection member for connection to a valve device, in particular to an end of the valve device.

6. The connection device according to claim 5, Features The connecting component is designed for a force-fitting, material-fitting and / or form-fitting connection, wherein the connecting component is designed, for example, as a snap connection or as a sacrificial contour for plastic welding.

7. The connection device according to any one of claims 1 to 6, Features The sealing device is connected to the tubular part, preferably by means of a force-fitting, material-fitting and / or form-fitting connection, wherein the connecting member is produced by means of a 2-component injection molding method.

8. A valve device having a connection device according to any one of claims 1 to 7, comprising a housing device having at least two ends, a closure element arranged in the housing device, and A connecting device, wherein only the connecting device comprises sealing means for sealing the connecting device against the closure element.

9. The valve device according to claim 8, Features The sealing device is configured to seal against the end of the valve device, in particular to seal radially, And / or the connecting device is connected to the housing device of the valve device by means of plastic welding and / or by means of a snap-fit ​​device.

10. A method for connecting a connection device to an end of a valve device, comprising the steps of: Introducing the connecting device into the end of the valve device, The connecting device is sealed against the closure element of the valve apparatus only via the sealing device of the connecting device.

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