Assembly system for a sealing device, sealing device and method thereof

Abstract

According to the invention, an assembly system for a sealing device of a ball valve device is proposed. The invention relates to an assembly system comprising: a sealing device having a housing device made of a hard component and a sealing member made of a soft component; the invention relates to a sealing device for a ball valve device, comprising a mounting device having a mounting tappet extending in the axial direction, the mounting tappet having a closing body stop surface for, in particular, axially abutting against a closing body of the ball valve device, and a seal stop surface for, in particular, axially abutting against the sealing device, such that the sealing device can be arranged at a predetermined distance from the closing body.

Description

[0001] The invention relates to a mounting system for a sealing device, a sealing device and a method for producing such a sealing device.

[0002] Coolant valves are used in the cooling circuits of vehicles, such as passenger cars (PKW) or heavy trucks (LKW). Coolant valves are used, for example, to cool internal combustion engines. Depending on the position of the valve element, for example, the coolant is guided via a bypass line around the radiator during the warm-up phase of the internal combustion engine, and is guided through the radiator after reaching the operating temperature. Depending on the application, it is also possible in the case of a coolant valve to allow the coolant to flow through the coolant valve only temporarily, for example, during the cold start phase of the internal combustion engine, the coolant flow is completely blocked. The control of the valve element can be initiated automatically, for example, by means of an element made of expansion material. However, the valve element can also be adjusted by means of electric drives, which are controlled by a control device.

[0003] For example, to seal the coolant port relative to the valve element, an annular sealing arrangement is provided, for example, which seals against the housing, in particular against a housing section delimiting the coolant port, and against the valve element.

[0004] A coolant valve with such a sealing assembly is known, for example, from EP 2 052 177 B1. The thermostatic valve described therein has a spherical valve element, wherein the sealing assembly has a slide ring made of a slidable solid plastic, which is prestressed relative to the valve element by an elastic sealing ring. The slide ring can be made, for example, of PPS (polyphenylene sulfide) or PTFE (polytetrafluoroethylene), while the elastic sealing ring can be made, for example, of EPDM (ethylene propylene diene monomer). With the known thermostatic valve, a consistently reliable seal can be achieved. However, the known sealing assembly entails considerable costs.

[0005] A coolant valve for a vehicle is known from DE 10 2018 117 240 A1. The coolant valve comprises: a housing with a plurality of coolant ports; a valve element arranged in an adjustably manner in the housing for connecting or disconnecting the coolant ports; and at least one sealing component arranged in the region of at least one coolant port, which sealing component bears against the housing in a sealing manner on the one hand and against the valve element in a sealing manner on the other hand. The coolant valve is characterized in that the sealing component has a carrier element made of a first material and a sealing element made of a second material, wherein the second material is softer than the first material; the sealing element has a first sealing lip that bears against the valve element and the carrier element has a supporting section, wherein the first sealing lip protrudes beyond the supporting section with a free end, and wherein the first sealing lip is pressed against the supporting section when the coolant flows through the coolant valve.

[0006] A problem with known sealing assemblies of coolant valves is that there is a conflict of objectives between secure contact of the sealing assembly with the valve element and thus secure sealing even at relatively low system pressures on the one hand, and high load capacity and low yield at high pressures, low friction torques and thus low drive torques of the valve element on the other hand.

[0007] Closing elements or closing bodies for valves, in particular for ball valves, usually have a certain amount of assembly tolerances and / or manufacturing tolerances. This can lead to problems with the sealing of the ends of the ball valve, since the corresponding seals should, on the one hand, bear against the closing element of the ball valve in a sealing manner, and, on the other hand, the contact pressure of such seals must not be too high, so as not to unnecessarily increase the forces for actuating the closing body.

[0008] The object of the present invention is to provide a mounting system for a sealing device of a ball valve device, a sealing device and a corresponding mounting method which allow tolerance compensation between a closing body seal and a closing body.

[0009] A further object of the invention is to provide an assembly system for a sealing device of a ball valve device, a sealing device and a corresponding assembly method which allow simple assembly and still allow the closing body seal to rest in a sealing manner against the closing body of the ball valve device.

[0010] Furthermore, the object of the present invention is to provide a mounting system for a sealing device, a sealing device and a corresponding mounting method which are safe and reliable in operation and which represent an alternative to the prior art.

[0011] One or more of these objects are achieved by the features of independent patent claims 1, 7 and 8. Advantageous embodiments are given in the respective dependent claims.

[0012] According to the present invention, an assembly system for a sealing device of a ball valve device is provided. The assembly system comprises:

[0013] A sealing device, wherein the sealing device has a housing device made of a hard component and a sealing member made of a soft component;

[0014] The assembly device has an assembly push rod extending in the axial direction, wherein the assembly push rod has a closing body stop surface for abutting against the closing body of the ball valve device and a sealing member stop surface for abutting against the sealing device, so that the sealing device can be arranged relative to the closing body at a predetermined distance.

[0015] The basic principle of the assembly system of the present invention and the sealing device of the present invention is that the sealing element of the sealing device is pushed from the outside onto the closing body or the ball of the ball valve device in order to assemble it, while the sealing device itself does not have a valve side device for precise positioning and does not have a device for axial position fixation.

[0016] In particular, the mounting system of the present invention is provided with the mounting device of the present invention, which has a mounting push rod.

[0017] The assembly push rod is characterized in that it has a closing body stop surface, which enables an easily reproducible and always constant positioning of the sealing device relative to the closing body of the ball valve device when the closing body stop surface abuts against the closing body of the ball valve device.

[0018] The mounting tappet can have a closing body stop surface for axially abutting against the closing body of the ball valve device and a sealing element stop surface for axially abutting against the sealing device, so that the sealing device can be arranged at a predetermined distance relative to the closing body.

[0019] Therefore, in this case, the assembly push rod is characterized in that the assembly push rod has a closing body stop surface, and when the closing body stop surface is in contact with the closing body of the ball valve device in the axial direction, the closing body stop surface can achieve easily reproducible and always constant positioning of the sealing device relative to the closing body of the ball valve device.

[0020] In this way, in particular in the axial direction, the sealing device is always present with an equal contact pressure on the closing body of the ball valve device or with always the same installation dimensions relative to the closing body of the ball valve device.

[0021] The system according to the invention therefore makes it possible to compensate for tolerances between the closing body and the sealing device of the ball valve device, in particular in the axial direction, in order to achieve a reproducible assembly position of the sealing device relative to the closing body.

[0022] Furthermore, the assembly tappet can have a seal stop surface for axial contact with a housing device of the sealing device, in particular formed from a hard component.

[0023] By providing two stop surfaces, wherein the first stop surface is formed on the sealing device to be assembled, in particular in the area of ​​a main component of a housing device of the sealing device, and by means of closing body stop surfaces arranged offset from each other in the axial direction, it is possible to achieve a constant positioning of the sealing device relative to the closing body of the ball valve device.

[0024] The present invention is applicable not only to rotationally symmetrical closing bodies of ball valve devices but also to eccentrically supported closing bodies of ball valve devices and can safely and reliably ensure always identical installation dimensions.

[0025] This ensures safely and reliably that the closing body sealing element always bears sealingly against the closing body of the ball valve device with equal contact pressure or that the closing body sealing element always has precisely defined, identical installation dimensions relative to the closing body and not relative to the housing.

[0026] The seal stop surface can extend orthogonally to the axial direction and be formed as a tangentially circumferential, annular surface which is arranged at an edge region of the mounting tappet.

[0027] Since the seal stop surface is designed to be tangentially circumferential and annular, it is safely and reliably ensured that a uniform force is applied to the corresponding hard component of the housing device of the sealing device in the axial direction and that no overturning moment is generated, which causes the installation position of the corresponding sealing device to deflect or tilt relative to the axial direction.

[0028] The closing body surface can also extend orthogonally to the axial direction and can be configured as a disk-shaped surface that can be arranged in the center of the mounting tappet.

[0029] Preferably, the disc-shaped surface of the closing body stop surface is configured to be flat, thereby extending orthogonally to the axial direction. However, in some cases, it may also be advantageous for the closing body stop surface to be designed as a concave or convex shape or to be rectangular or square in a top view.

[0030] Since the closing body surface extends orthogonally to the axial direction and the usually convex or spherical surface of the closing body contacts only in a small area, precise positioning of the sealing device can be achieved. The corresponding section on the closing body is referred to as the second stop surface below.

[0031] The closing body surface can form a free end of the assembly tappet in the axial direction, and the sealing element stop surface can be offset rearwardly in the axial direction relative to the closing body stop surface.

[0032] In particular, the closing body stop surface and the sealing element stop surface must be designed so that the housing device of the sealing device is first contacted by means of the assembly push rod, which can then be moved in the axial direction and then the closing body stop surface contacts the second stop section of the closing body in the final assembly position.

[0033] Furthermore, the mounting plunger can have a receiving section for receiving a sealing device.

[0034] Such a receiving section is in particular designed to be cylindrical, so that the sealing device can be arranged on the receiving section.

[0035] This results in the advantage that the sealing device does not first have to be arranged manually in the housing of the ball valve device and then arranged in a second step into its final position by means of an assembly tappet, but rather a corresponding sealing device can be assembled in the housing of the ball valve device in a single assembly step.

[0036] The radial sealing element may be designed in an annular shape and have at least one or two or three sealing lips which are arranged one behind the other in the axial direction, extend outward in the radial direction and are designed to be radially circumferential.

[0037] In addition, a sealing device of the present invention is provided, which has a housing device made of a hard component and a sealing device made of a soft component. In particular, the sealing device can be designed in a circular ring shape. The sealing device can also include: a closing body sealing element arranged on the valve side of the sealing device, which is used to abut against the closing body of the ball valve device in a sealing manner; and an axial or radial sealing element extending in the radial direction and / or axial direction, which is used to seal relative to the housing of the ball valve device.

[0038] The radial sealing element may be designed in an annular shape and have at least one, two or three sealing lips which are arranged one behind the other in the axial direction, extend outward in the radial direction and are designed to be radially or tangentially circumferential.

[0039] The advantages of the radial sealing element are described in detail below with reference to two embodiments of the sealing device according to the invention, which are also applicable to the radial sealing element.

[0040] Furthermore, the housing device can have a latching device for connection to a housing of the ball valve device.

[0041] The corresponding latching elements and tolerance compensation sections described below with reference to the third and fourth embodiments can also be provided in the same way for the first and second embodiments. Therefore, the technical features of the embodiments of the present invention can be combined with each other arbitrarily. The latching elements and / or the tolerance compensation sections have a profile such that the position of the sealing device can be ensured even when the assembly system is removed from the valve. With the aid of the latching elements, the sealing element can be fixed in place by "clamping" or by "creeping" of the softer housing material.

[0042] In addition, the sealing device can also be designed to provide only radial sealing elements or only axial sealing elements or both sealing elements for sealing relative to the housing of the ball valve device. The latching device can have a flexible latching arm, on which a latching element is molded and extends outwardly in the radial direction.

[0043] The features of the sealing device of the present invention may be arbitrarily combined with other embodiments of the sealing device of the present invention described below, as long as it is technically feasible and reasonable.

[0044] In addition, according to the present invention, a method for assembling a sealing device using the above-mentioned assembly system for a sealing device of a ball valve device is provided. The method comprises the following steps:

[0045] Arranging the sealing device in the housing of the ball valve device;

[0046] Arranging an assembly push rod of the assembly device on the housing side of the sealing member;

[0047] By applying a force acting in the axial direction to the assembly push rod, the sealing member stop surface is brought into contact with a first stop surface of the sealing member that is designed substantially correspondingly;

[0048] A force acting in an axial direction is applied to the assembly push rod until the closing body stop surface stops on a surface of the closing body of the ball valve device, wherein this section of the closing body is called the second stop surface, and wherein no force acting in an axial direction is applied to the assembly push rod at this time, and wherein the final assembly position of the sealing component is reached.

[0049] The advantages of the method according to the invention also correspond to the advantages described above with reference to the assembly system according to the invention.

[0050] In particular, it can be provided that the sealing device is arranged on the receiving section of the mounting tappet before the sealing device is introduced into the housing of the ball valve device.

[0051] According to the present invention, a sealing device for a ball valve device is provided. The sealing device has a housing device made of a hard component and a sealing component made of a soft component. The sealing component includes:

[0052] a closing body sealing element arranged on the valve side of the sealing component for bearing against the closing body of the ball valve device in a sealing manner; and

[0053] A radial sealing element extending outward in a radial direction is used for radial sealing relative to a particularly tubular port of a housing of the ball valve device.

[0054] By means of the radial sealing element, a safe and reliable sealing of the closing body of the ball valve device relative to the pipe connection of the housing of the ball valve device is ensured.

[0055] Since a radial sealing element is provided which extends outward in the radial direction and is used for radial sealing relative to the housing device of the ball valve device, the sealing device can be relatively freely positioned in the axial direction or along and / or against the flow direction or can be variably arranged in the housing device as long as it is ensured to be in sealing contact with the closing body.

[0056] This means that the sealing device can be variably positioned or arranged in the axial direction in order to compensate for tolerances between the closure body sealing element and the closure body of the ball valve device. Therefore, the sealing device of the invention enables a relatively free arrangement of the closure body sealing element in the axial direction.

[0057] Through the structure of the sealing device of the present invention, the axial movement of the sealing device does not affect the sealing function compared with the port of the housing of the ball valve device.

[0058] The sealing device and in particular the closing body sealing element can thus be arranged in different axial positions in the housing of the ball valve device.

[0059] The basic principle of the assembly system of the present invention is that the sealing element of the closing body of the sealing device is pushed onto the closing body or the ball of the ball valve device from the outside in order to assemble it, while the sealing device itself does not have a device for precise positioning on the valve side or a device for axial position fixation.

[0060] For this purpose, the assembly device of the present invention may be equipped with an assembly push rod, which includes a receiving section for receiving the sealing device and at least one axial first stop section for axially positioning the sealing device.

[0061] Such an assembly device thus provides an accurate installation position of the sealing device in the housing device of the ball valve device. The assembly push rod is configured so that it has a first stop section for abutting against the closing body or the ball of the ball valve device. In this way, it is ensured that the installation position of the sealing device according to the invention does not depend on fixed parameters, such as the housing of the ball valve device, but on the accurate assembly position of the closing body of the ball valve device.

[0062] This ensures safely and reliably that the closing body sealing element always bears sealingly against the closing body of the ball valve device with equal contact pressure or that the closing body sealing element always has precisely defined, identical installation dimensions relative to the closing body and not relative to the housing.

[0063] An optional tolerance compensation element formed from a soft component can be arranged on the housing side of the sealing device opposite to the valve side for compensating for tolerances between the closing body sealing element and the closing body of the ball valve device, wherein the tolerance compensation element extends in the axial direction at least in some sections and forms a distal area on the housing side of the sealing device.

[0064] The tolerance compensating element prevents the sealing device from deviating in the axial direction from the closing body of the ball valve device during assembly of the sealing device according to the invention.

[0065] In this way, it is possible to compensate for axial length tolerances of the play of the closing body of the ball valve device and in particular for tolerances between the closing body sealing element and the closing body of the ball valve device.

[0066] The tolerance compensation element supports or enhances the above-mentioned technical effect or technical functional principle of the sealing device of the present invention.

[0067] The assembly tappet of the assembly device can have a second stop section for abutting against a tolerance compensation element of the sealing device.

[0068] The radial sealing element may be designed in an annular shape and have at least one or two or three or more sealing lips which are arranged one behind the other in the axial direction, extend outward in the radial direction and are designed to be radially circumferential.

[0069] Since the radial sealing element has a plurality of radially circumferential sealing lips, safe and reliable sealing of the sealing device relative to the housing of the ball valve device and thus of the closing body of the ball valve device relative to the housing device can be achieved.

[0070] The housing device can have a latching device for connection to a housing of the ball valve device.

[0071] By means of the latching device, the sealing device can be connected to the port of the housing of the ball valve device in a simple manner.

[0072] Furthermore, the latching device is designed in such a way that it enables the sealing device to be fixed in the port of the housing of the ball valve device without requiring a latching device receiver which is assigned accordingly to the latching device.

[0073] The technical features of the third embodiment of the sealing device of the present invention are shown below. However, these technical features are not limited to the third embodiment, but can be combined with the technical features of other embodiments of the sealing device of the present invention.

[0074] In this case, it can be provided that only radial sealing elements are provided for sealing relative to the housing of the ball valve device.

[0075] In this way, the sealing device according to the invention can be freely arranged or positioned in the axial direction, since no additional assembly parameters need to be met in the axial direction in order to achieve a sealing contact of the seal acting in the axial direction for sealing against the housing of the ball valve device.

[0076] The latching device may include a flexible latching arm, on which a latching element is molded and extends outward in the radial direction.

[0077] By means of the locking element, the sealing device of the present invention can be fixed in the housing of the ball valve device. Preferably, the corresponding housing of the ball valve device does not have a locking recess corresponding to the locking element, so that the locking element is configured to fix the sealing device on the smooth surface or smooth inner peripheral wall of the port of the housing of the ball valve device.

[0078] The tolerance compensation element can have a plurality of tolerance compensation sections which are partially surrounded by the crenel-shaped element of the housing device. In this way, a plurality of radially surrounding and mutually spaced tolerance compensation sections are provided on the housing side for uniform contact with an assembly push rod, in particular an assembly device.

[0079] These tolerance compensation sections make it possible to apply the assembly force acting in the axial direction to the sealing device uniformly and, in particular, to position the sealing device precisely by abutting against the second stop section of the assembly push rod of the assembly device, so that the closing body sealing element abuts against the closing body of the ball valve device in a sealing manner. As a result, the sealing device can be arranged at a predetermined distance relative to the closing body of the ball valve device.

[0080] Preferably, in the crenel-like element of the housing device, corresponding recessed channels can be provided for the tolerance compensating section of the tolerance compensating element formed from the soft component.

[0081] Furthermore, the crenel-like elements with the tolerance compensation sections can be arranged alternately with the latching arms and radially around and equidistantly spaced from one another on the housing side of the sealing device.

[0082] In the case of the sealing device according to the invention according to the first exemplary embodiment, provision can in particular be made for the sealing device to be configured only for flow to flow through from the valve side in the direction of the housing side.

[0083] Now, the technical features of the fourth embodiment of the sealing device of the present invention are described in detail below. These technical features can also be combined with the technical features of the first three embodiments of the sealing device of the present invention as needed.

[0084] In this case, the tolerance compensating element can be designed in the shape of an annular ring and circumferentially extend radially.

[0085] According to this exemplary embodiment, the tolerance compensating element is likewise arranged on the housing side of the sealing device.

[0086] According to a second embodiment, the sealing device can be configured in particular such that only a flow in the sealing device is provided in the direction from the housing side towards the valve side.

[0087] For this purpose, the tolerance compensating element can perform other functions and at the same time be provided with an axial sealing element for bearing in a sealing manner against the housing of the ball valve device.

[0088] Therefore, according to the second embodiment, additional sealing of the sealing device relative to the housing of the ball valve device in the axial direction can be provided so as to improve the sealing effect of the sealing device.

[0089] Furthermore, the latching device can be configured as a radially circumferential collar element, wherein latching elements extending outward in the radial direction are integrally formed on the collar element, in particular radially circumferentially and equidistantly spaced from one another.

[0090] The technical effect of the latching element corresponds analogously to the technical effect of the latching element described above.

[0091] Furthermore, the collar element can form a stop for abutting against the housing of the ball valve device.

[0092] Therefore, the sealing device according to the invention has the same technical features as the sealing device according to the first embodiment in terms of the free or variable arrangement in the housing of the ball valve device, but in addition, as disclosed above, an axial sealing element and a flange element forming a stop portion can also be provided, wherein these technical features slightly limit the possibility of free axial positioning.

[0093] Additional technical features of the sealing device of the present invention are disclosed below, and these technical features can be provided in the sealing device according to the first embodiment as well as in the sealing device according to the second embodiment.

[0094] The housing device can be designed as an undercut in the area of ​​the sealing device, in particular in the area of ​​the radial sealing element, wherein the radial sealing element has a correspondingly configured section in this area in order to safely and reliably connect the sealing device or the soft component to the housing device or the hard component.

[0095] The latching element may be configured in a hemispherical shape.

[0096] Preferably, the hard component may be formed from polyphenylene sulfide (PPS) or from polyphthalamide (PPA), while the soft component may preferably be formed from an elastomer.

[0097] Furthermore, according to the invention, a method for producing the above-mentioned sealing device is proposed, wherein the sealing device is produced by means of a two-component injection molding process.

[0098] The third and fourth embodiments can also be configured without the tolerance compensation element. Therefore, the tolerance compensation element is only selectively provided.

[0099] As long as it is technically reasonable and feasible, all technical features of the present invention can be combined with each other as needed.

[0100] The invention is described in more detail below with the aid of four exemplary embodiments shown in the accompanying drawings. In the drawings:

[0101] Figure 1 shows a schematic side-sectioned view of an assembly tappet according to the invention and a sealing device according to the invention in a final assembly position, correspondingly according to a first embodiment,

[0102] Figure 2 A schematic side-section diagram of a sealing device according to the invention and an assembly tappet according to the invention according to a second embodiment is shown,

[0103] Figure 3 A perspective view showing a sealing device according to the present invention according to a third embodiment,

[0104] Figure 4 Show Figure 1 A top view of the housing side of the sealing device,

[0105] Figure 5 Show Figure 4 The sealing device is cut along the cutting line AA.

[0106] Figure 6 A schematic side view of the sealing device in a state installed in the housing of the ball valve device, wherein a section of the corresponding assembly device is shown,

[0107] Figure 7 Show Figure 5 A detailed perspective view of a side section of

[0108] Figure 8 A side view of the housing arrangement showing the sealing arrangement,

[0109] Fig. 9 Show Figure 8 A lateral cutaway view of the housing device along the cutting line CC,

[0110] Fig.10 Show Figure 8 A cross-sectional view of the housing device along the cutting line DD,

[0111] Fig.11 A lateral sectioned illustration of a sealing device according to the invention according to a fourth embodiment is shown,

[0112] Fig.12 Shown as viewed from the housing side Fig.11 Top view of the sealing device,

[0113] Fig.13 Show Fig.11 A detailed side view of the sealing device,

[0114] Fig.14A schematic side view of the sealing device in a state installed in the housing of the ball valve device, wherein a section of a corresponding assembly tool is shown,

[0115] Fig.15 A side view of the housing arrangement showing the sealing arrangement,

[0116] Fig.16 Show Fig.15 A cross-sectional view of the housing device along the cutting line DD, and

[0117] Fig.17 Show Fig.15 A detailed sectional view of the housing device along the sectional line BB.

[0118] In the following, the assembly device of the present invention (not shown) having the assembly push rod 19 of the present invention and the sealing device 1 of the present invention according to the first and second embodiments are described in further detail ( Figure 1 and Figure 2 ).

[0119] The assembly device according to the invention, which is not described in further detail, can include a robot arm or other mechanical assembly device, by means of which the assembly tappet 19 according to the invention connected thereto can be arranged in the housing 22 of the ball valve device 23 and a force acting in the axial direction 6 can be applied thereto.

[0120] The assembly push rod 19 of the present invention is configured as a rotationally symmetrical cylinder and has a closing body stop surface 26 extending orthogonally to the axial direction 6 at the free end located in the front when viewed in the axial direction 6 so as to axially abut against the closing body 24 of the ball valve device.

[0121] The closing body stop surface is, in particular, a disk-shaped surface which is arranged in the center of the assembly tappet 19 .

[0122] A circular annular sealing stop surface 27 is provided which is offset in the axial direction 6 relative to the closing body stop surface.

[0123] The seal stop surface 27 is arranged in particular at a radial edge region of the assembly tappet 19 .

[0124] The section formed on the closing body 24 at which the closing body stop surface comes to abutment in the final assembly position 25 is referred to below as the second stop surface 28 .

[0125] The corresponding section of the housing device 4 of the sealing device 1 which is formed from the hard component and at which the seal stop surface 27 comes to abut is referred to below as the first stop surface 29 .

[0126] In addition, according to the present invention, a method for assembling a sealing device using the above-mentioned assembly system for a sealing device of a ball valve device is provided. The method comprises the following steps:

[0127] Arranging the sealing device in the housing of the ball valve device;

[0128] Arranging an assembly push rod of the assembly device on the housing side of the sealing member;

[0129] By applying a force acting in the axial direction to the assembly push rod, the sealing member stop surface is brought into contact with a first stop surface of the sealing member that is formed substantially correspondingly;

[0130] A force acting in an axial direction is applied to the assembly push rod until the closing body stop surface stops on a surface of the closing body of the ball valve device, wherein this section of the closing body is called the second stop surface, and wherein no force acting in an axial direction is applied to the assembly push rod at this time, and wherein the final assembly position of the sealing component is reached.

[0131] In particular, it can be provided that the sealing device is arranged on the receiving section of the mounting tappet before the sealing device is introduced into the housing of the ball valve device.

[0132] The sealing device 1 (not shown) of the present invention for a ball valve device (not shown) will be described in further detail below with reference to a third embodiment. Figures 3 to 11 ).

[0133] The sealing device 1 has a valve side 2 facing a closing body (not shown) of the ball valve device and a housing side 3 facing a port (not shown) of a housing (not shown) of the ball valve device.

[0134] The sealing device 1 further comprises a housing device 4 formed of a hard component and a sealing member 5 formed of a soft component. The housing device 4 is formed of PPA or PPS. The sealing member 5 is formed of an elastomer.

[0135] The sealing device 1 extends in an axial direction 6 and is provided for flow to flow through it from the valve side 2 in the direction of the housing side 3 in a flow direction 7 .

[0136] Furthermore, the housing device 4 is designed to be substantially tubular and defines a passage opening 8 .

[0137] A latching device 9 is arranged at the free end of the housing side 3 .

[0138] The latching device 9 comprises flexible latching arms 10 which are arranged radially circumferentially and equidistantly from one another and extend in the axial direction 6 , and on which latching elements 11 extending radially outward and formed in a semicircular shape are integrally formed.

[0139] In the region between the latching arms 10 and alternating therewith, crenel-like elements 12 are integrally formed radially around the latching arms and equidistantly spaced from one another and extending in the axial direction 6 .

[0140] The crenel-like element 12 is formed approximately T-shaped when viewed from above and has a recessed channel 13 extending in the axial direction 6 . The recessed channel 13 is provided for receiving a tolerance compensating section 14 of a tolerance compensating element 15 .

[0141] The housing side 3 of the sealing device 1 is delimited radially outwardly by latching arms 10 and crenel-like elements 12 .

[0142] In the region of the valve side 2 , the sealing arrangement 1 is delimited in radially outward direction by a sealing component 5 .

[0143] Three sealing lips 16 extending radially outwards are molded on the sealing member 5, extending approximately centrally, radially circumferentially and equidistantly from one another in the axial direction 6. These sealing lips 16 form radial sealing elements 17 for sealingly abutting against the ports of the housing of the ball valve device.

[0144] Furthermore, the sealing component 5 forms a radially circumferential closing body sealing element 18 in the region of the valve side 2 and extending in the axial direction 6. The closing body sealing element 18 is configured to bear against a closing body of the ball valve device in a sealing manner.

[0145] The sealing component 5 formed of a soft component extends in the axial direction 6 or flow direction 7 through the recessed channel 13 of the crenel-shaped element 12, so that a tolerance compensation section 14 extending orthogonally to the axial direction 6 is formed on the housing side 3. The tolerance compensation section 14 forms a tolerance compensation element 15, which is a distal region of the sealing device 1 on the housing side 3.

[0146] Such a sealing device 1 according to the invention according to the third embodiment can be arranged in the housing of a ball valve device by means of an assembly device (not shown). Here, the assembly device has an assembly push rod 19, which is constructed corresponding to the structural construction of the sealing device 1 and has a first stop section for stopping on the closing body of the ball valve device. A second stop section is formed at the end of the assembly push rod opposite to the stop section, and the tolerance compensation element 15 and the tolerance compensation section 14 are correspondingly in contact with the second stop section.

[0147] Preferably, it is provided according to the third exemplary embodiment that the sealing device 1 has only radial sealing elements 17 for sealing relative to the housing of the ball valve device.

[0148] According to the assembly method of the present invention, the sealing device 1 is first arranged on the assembly push rod 19 of the assembly device. Subsequently, the sealing device together with the assembly push rod is moved toward the closing body of the ball valve device into the port of the ball valve device until the first stop section of the assembly push rod stops on the closing body. Here, the tolerance compensation element 15 of the sealing device abuts against the second stop section of the assembly push rod.

[0149] By means of the tolerance compensating element 15 , certain installation tolerances of the closing body or tolerances between the closing body sealing element and the closing body of the ball valve arrangement can be compensated.

[0150] Hereinafter, the sealing device 1 ( Figures 11 to 16 ).

[0151] Unless otherwise stated, the sealing device 1 according to the fourth exemplary embodiment has the same technical features as the sealing device 1 according to the third exemplary embodiment. Identical technical features are provided with the same reference numerals.

[0152] Preferably, the sealing device 1 according to the fourth exemplary embodiment is configured for flow to flow through it from the housing side 3 in the direction of the valve side 2. The flow direction 7 is therefore opposite to that of the first exemplary embodiment.

[0153] The tubular housing device 4 forms the end of the sealing device 1 in the region of the valve side 2 and is therefore produced from a hard component. In the region of the housing side 3 , the housing device 4 has a radially circumferential collar section 20 .

[0154] Semi-spherical latching elements 11 of the latching device 9 are integrally formed on the collar section 20 , extending radially outwardly and equidistantly from one another in a radially circumferential manner.

[0155] According to an advantageous further development, the collar section 20 can be configured as a stop element serving as a stop on an assembly tappet 19 of the assembly device and / or on a correspondingly assigned section of the housing of the ball valve device.

[0156] A radial sealing element 17 of the sealing component 5 is arranged adjacent to the flange section 20. According to this embodiment, similar to the first embodiment, the radial sealing element 17 has two sealing lips 16 that are radially circumferential, adjacent to each other in the axial direction, and extend radially outward.

[0157] An axial sealing element 21 extending in the axial direction 6 or counter to the flow direction 7 may be integrally formed on the housing side 3. According to one embodiment, the axial sealing element 21 may be configured to bear sealingly against a section of the housing of the ball valve device.

[0158] According to an alternative embodiment, the axial sealing element can form a continuously formed tolerance compensation element 15 which extends radially around the periphery and in the axial direction 6 .

[0159] According to further embodiments, the tolerance compensating element 15 or the axial sealing element 21 can perform or assume the tasks of the tolerance compensating element 15 and the axial sealing element 21 .

[0160] In the region of the valve side 2 , the closing body sealing element 18 is offset rearwardly in the axial direction relative to the hard component of the housing device 4 .

[0161] According to the present exemplary embodiment, the closing body sealing element 18 extends inwardly in a radial direction orthogonal to the axial direction 6 or flow direction 7 .

[0162] The assembly device 19 has an assembly push rod which is configured to correspond to the structural design of the sealing device 1 according to the second embodiment.

[0163] The sealing device 1 preferably has a tolerance compensation element 15 in this case.

[0164] The technical features of the sealing device 1 according to the first and second embodiments of the present invention can be combined with each other as needed, as long as it is technically feasible and reasonable.

[0165] Furthermore, it can be provided that the fluid flows through the sealing device 1 according to both exemplary embodiments counter to the preferred flow direction 7 .

[0166] The corresponding assembly method is carried out analogously to the assembly method described with reference to the first exemplary embodiment.

[0167] Furthermore, according to the invention, a method for producing the above-described sealing device is proposed, wherein the sealing device 1 is produced by means of a two-component injection molding process.

[0168] List of Reference Numerals

[0169] 1 Sealing device

[0170] 2 Valve side

[0171] 3 Housing side

[0172] 4 Shell device

[0173] 5 Sealing components

[0174] 6 Axial direction

[0175] 7 Flow direction

[0176] 8 Access opening

[0177] 9 Locking device

[0178] 10 Locking arm

[0179] 11 Locking element

[0180] 12 Crenel-shaped elements

[0181] 13 Sunken Channel

[0182] 14 Tolerance compensation section

[0183] 15 Tolerance compensation element

[0184] 16 Sealing lip

[0185] 17 Radial sealing element

[0186] 18 Closure sealing element

[0187] 19 Assembling the push rod

[0188] 20 Flange section

[0189] 21 Axial sealing element

[0190] 22 Housing

[0191] 23 Ball valve assembly

[0192] 24 closed body

[0193] 25 Final assembly position

[0194] 26 Closing body stop surface

[0195] 27 Seal stop surface

[0196] 28 Second stop surface

[0197] 29 First stop surface

Claims

1. An assembly system for a sealing device (1) for a ball valve device (23), the assembly system comprising: A sealing device (1), wherein the sealing device (1) comprises a housing device (4) made of a hard component and a sealing member (5) made of a soft component; An assembly device (6) having an assembly push rod (19) extending in an axial direction, wherein the assembly push rod (19) has a closing body stop surface (26) for abutting against a closing body (24) of a ball valve device (23) and a sealing member stop surface (27) for abutting against the sealing device (1), so that the sealing device (1) can be arranged at a predetermined distance relative to the closing body (24).

2. The assembly system according to claim 1, It is characterized in that The seal stop surface (27) extends orthogonally to the axial direction (6) and is formed as a tangentially circumferential, annular surface arranged at an edge region of the assembly tappet (19).

3. The assembly system according to claim 1 or 2, It is characterized in that The closing body stop surface (26) extends orthogonally to the axial direction (6) and is formed as a disk-shaped surface arranged in the center of the assembly push rod (19).

4. The assembly system according to any one of claims 1 to 3, It is characterized in that The closing body stop surface (26) forms the free end of the assembly push rod (19) in the axial direction (6), and the sealing element stop surface (27) is offset relative to the closing body stop surface (26) in the axial direction (6).

5. The assembly system according to any one of claims 1 to 4, It is characterized in that The assembly plunger (19) has a receiving section for receiving the sealing device (1).

6. The assembly system according to any one of claims 1 to 5, It is characterized in that The sealing member (5) further comprises: a closing body sealing element (18) arranged on the valve side (2) of the sealing component (5) for sealingly abutting against a closing body (24) of a ball valve device (23); and An axial and / or radial sealing element (17) extending in a radial direction and / or an axial direction is used to seal against a housing (22) of a ball valve device (23).

7. A sealing device (1), preferably for assembly using an assembly system according to any one of claims 1 to 6, the assembly system comprising: A sealing device (1), wherein the sealing device (1) comprises a housing device (4) made of a hard component and a sealing member (5) made of a soft component; a closing body sealing element (18) arranged on the valve side (2) of the sealing component (5) for sealingly abutting against a closing body (24) of a ball valve device (23); and An axial and / or radial sealing element (17) extending in a radial direction and / or an axial direction is used to seal against a housing (22) of a ball valve device (23).

8. A method for assembling a sealing device (1) for a ball valve device (23) using an assembly system for the sealing device (1) according to any one of claims 1 to 7, the method comprising the following steps: - arranging the sealing device (1) in the housing of the ball valve device (23); - arranging an assembly push rod (19) of the assembly device on the housing side (3) of the sealing device (5); - by applying a force acting in the axial direction (6) to the assembly push rod (19), the seal stop surface (27) is brought into contact with a first stop surface (29) of the sealing device (5) which is formed substantially correspondingly; - A force acting in the axial direction (6) is applied to the assembly push rod (19) until the closing body stop surface (26) abuts against a surface of the closing body (24) of the ball valve device (23), wherein this section of the closing body (24) is referred to as the second stop surface (28), and wherein at this point a force acting in the axial direction (6) is no longer applied to the assembly push rod (19), and wherein the final assembly position (25) of the sealing component (5) is reached.

9. The method according to claim 8, further comprising providing a step before the above step: The sealing device (1) is arranged on a receiving section of the assembly plunger (19).

10. A method for producing a sealing device (1) according to claim 8, wherein the sealing device (1) is produced by means of a two-component injection molding process.

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