"Coupling device for wall penetrations of media lines, base plate and coupling module as well as use of the base plate and use of the coupling module"

Abstract

The present invention relates to a coupling device (1) for wall penetrations of media lines. The coupling device (1) has a base plate (2) and coupling modules (3) arranged on both sides of the base plate (2). In a connected state, fastening sections (4) of the base plate (2) interact with a corresponding fastening section (6) of the adjacent coupling module (3) via a fastening element (7) such that the respective coupling module (3) is detachably fixed to the base plate (2). Furthermore, in the connected state, receptacles (8) of the coupling modules (3) are arranged in each case as an extension of a media inlet (5a) or a media outlet (5b) of a media channel (5) that fluidically connects the coupling modules (3).

Description

[0001] The invention relates to a coupling device for wall penetrations of media lines, a base plate for a coupling device and its use, and a coupling module for a coupling device and its use.

[0002] Typically, in the manufacture of vehicles with cabins, particularly commercial vehicles, the cabin is produced as a separate assembly. The chassis is also manufactured as a separate assembly. When mounting the cabin onto the chassis, either as part of the chassis manufacturing process or as a subsequent connection, the cabin's utility lines and wiring harnesses must be connected to the chassis's utility lines and wiring harnesses. These utility lines include, in particular, compressed air lines for the vehicle's braking system. This connection is preferably made through an outlet in a bulkhead of the cabin, such as a sheet pile wall.

[0003] To reduce assembly effort, coupling devices are used. WO 2006 077 264 A1 discloses a coupling device comprising two coupling plates. These coupling plates rest against each other in the outlet in the mounting wall and are bolted together, with a section of the mounting wall clamped between the coupling plates. Such coupling devices have generally proven effective in practice.

[0004] Although the coupling plates can generally be detached from the mounting wall, this process inevitably damages both the coupling plates and / or the mounting wall. Furthermore, when replacing a coupling plate, both coupling plates must always be removed and replaced.

[0005] The invention is therefore based on the objective of providing a coupling device and components for such a coupling device with the simplest possible assembly, increased reusability and improved interchangeability.

[0006] The problem is solved according to the invention by claim 1. The coupling device according to the invention comprises a base plate and coupling modules arranged on both sides of the base plate. The base plate has at least one mounting section on each side. Furthermore, the base plate has at least one media channel that fluidly connects the coupling modules. The media channel has a media inlet and a media outlet. The coupling modules each have at least one mounting counterpart and several receptacles for a connecting connector. In a connected state, the mounting sections of the base plate interact with the mounting counterpart of the adjacent coupling module via a fastening means such that the respective coupling module is detachably fixed to the base plate.Furthermore, in the connected state, the mountings of the coupling modules are arranged in line with the media inlet or outlet of the media channel. This coupling device according to the invention allows the base plate to remain mounted on the vehicle cabin, with only the coupling modules needing to be exchanged. This reduces the risk of damage to a coupling module and the base plate when a coupling module is detached. Consequently, the reusability of the base plate, the coupling module, and the entire coupling device is improved. If a coupling module is damaged, it is possible to replace only that module without having to replace the other coupling module located on either side.

[0007] The term "media lines" generally refers to pipe or hose lines for any fluids, i.e. gases or liquids or mixtures thereof, such as flow and / or pressure media, but also electrical lines, fiber optic lines and the like.

[0008] To connect a coupling module to a media line, media line connectors are inserted into the receptacles as needed. These connectors can be designed, for example, as a socket, a plug, or as the end section of a media line. Standardized connectors are preferably used.

[0009] A connection is considered "releasable" within the meaning of the present invention if it can be disassembled without damage. "Fixed" in the context of the present connection refers to a state in which relative movement between the fixed components is prevented, apart from the play inherent in the connection.

[0010] In particular, the base plate has a substantially flat shape, with a height of the base plate having a shorter extent than an extent in a lateral plane perpendicular to that height, for example, a lateral section of the base plate. Preferably, the base plate has a first side extending substantially in the lateral plane or a plane parallel to the lateral plane, and / or the base plate has a second side extending in the lateral plane or a plane parallel to the lateral plane. When mounted at the installation site, for example, in the vehicle cabin, the base plate has one of its sides, the first or the second side (i.e., an inner side), facing an interior space, and the other side, the second or the first side (i.e., an outer side), facing an exterior space.

[0011] Coupling modules are considered to be on both sides of the base plate in the context of the present invention if, in the connected state, at least one coupling module is arranged on each of two different sides, in particular two opposite sides, of the base plate, for example, the first side and the second side or, for example, the outside and the inside. Two coupling modules that are opposite each other in the connected state can also be referred to as a coupling module pair or mutually associated coupling modules. Preferably, in the connected state, one of the receptacles of a coupling module of a coupling module pair is connected to the media inlet of the media channel, and one of the receptacles of the other coupling module of the coupling module pair is connected to the media outlet of the media channel.

[0012] In particular, it is intended that the coupling modules, when connected, at least partially rest against the base plate, for example at the media inlet and / or at the media outlet and / or at a mounting section.

[0013] In particular, the base plate is designed with a lightweight construction. For example, starting from a section of the base plate, the media channels and / or the mounting sections can protrude at least partially. Additionally, or alternatively, reinforcements can be arranged on the base plate section. These reinforcements increase the stability of the base plate.

[0014] To increase the versatility of the coupling device, for example, for inaccessible or awkwardly shaped mounting locations, it is further proposed that the media inlet and outlet of one, preferably all, of the media channels enclose a media channel angle, and that this media channel angle is greater than 0° and less than 180°. This also makes it possible to provide a higher density of inlets. Preferably, the media channel angle is between 30° and 150°, more preferably between 60° and 120°, and most preferably substantially 90°. "Substantially" in the context of the present invention means within the manufacturing tolerances.

[0015] Manufacturing can be simplified by using a thermoplastic material for the base plate. Polyamide, polypropylene, and polyethylene have proven advantageous, with polyamide, e.g., PA 66 GF30, being particularly preferred. For connecting the base plate to the coupling plates, it is particularly recommended that an insert, especially an anti-rotation insert, be arranged in each mounting section of the base plate, for example, an opening of the mounting section. Preferably, the insert is designed as a threaded insert. The insert has an insertion end and a head end, with the insertion end leading into the opening. For example, a head can be arranged at the head end. It is particularly recommended that the head has a contact surface for bearing against the base plate.The contact surface limits the axial movement of the insert into the opening of the base plate. In particular, the insert is made of a harder material than the base plate.

[0016] Preferably, the head end, in particular the head itself, has a circumferential stop, preferably interacting with a counter-stop on the base plate to secure the insert against rotation. Alternatively or additionally, it is proposed that the head has a symmetrical or asymmetrical contour, for example in plan view, and that the base plate has a corresponding counter-contour. The counter-contour may be designed as a recess or protrusion on the base plate.

[0017] Assembly can be improved, in particular, by making the insert, especially the threaded insert, at least partially, and preferably entirely, of a metal, especially brass. Alternatively, it is advantageous if the insert, especially the threaded insert, is made at least partially, and preferably entirely, of polyarylamide, also known as PARA.

[0018] Alternatively, the base plate can also be made of a high-strength plastic, in particular polyarylamide (PARA). To reduce assembly effort, it is specifically provided that an internal thread can be incorporated into the respective fastening section. This internal thread can, for example, be located directly in an opening of the base plate. Even a threaded entry at the opening constitutes an internal thread within the meaning of the present invention.

[0019] To facilitate the attachment of a coupling module to the base plate, a through-hole is provided in the mounting section of the respective coupling module. Preferably, in the connected state, the fastening element extends through the through-hole and forms a detachable connection with the mounting section. This detachable connection preferably detachably connects the corresponding coupling module to the base plate, and in particular, detachably fixes it. It is particularly preferred that the mounting section is designed to form a positive, force-fit, and / or form-force-fit connection with the fastening element. For example, the fastening element has a thread, the thread of which, in the connected state, engages with the internal thread of the base plate or with a thread, preferably an internal thread, of the threaded insert.For example, it is intended that the insert has a rotationally symmetrical and / or a circular or circular segment-shaped cross-section.

[0020] While it is generally possible to connect the insert, particularly the threaded insert, to the base plate via a press fit, the manufacturing effort can be reduced by incorporating a locking mechanism on the insert, especially the threaded insert. Specifically, this locking mechanism prevents axial movement of the insert, preferably out of the opening in the base plate. Additionally or alternatively, the locking mechanism is positioned axially closer to the head end than to the insertion end of the insert, preferably directly at the head end.

[0021] It is specifically provided that the release guard is designed as at least a partial, preferably a complete, circumferential knurling. The knurling is preferably arranged on the outer circumference of the insert. The knurling design of the release guard has proven particularly advantageous for inserts manufactured using metal. In particular, the knurling extends radially along the circumference of the release guard. For maximum service life, the knurling may be coated. Preferably, the knurling extends over at most half, preferably at most one-third, more preferably exactly one-third, and more preferably at most one-quarter, of the axial extent of the insert.

[0022] Additionally or alternatively, the release mechanism can be designed as a locking arm. Advantageously, the release mechanism is designed as a spring-loaded locking arm. The locking of the insert, particularly the threaded insert, with the base plate can be improved if the locking arm has a protruding locking cam, especially one projecting outwards beyond the outer circumference of the insert. It is advantageous if the base plate has a recess for receiving, and especially for locking with, the locking cam. The locking cam can have an insertion contour. To simplify manufacturing, the locking arm and / or the locking cam can be symmetrical; for example, the locking cam can be in the form of a spherical segment. The locking arm can be protected from damage when inserted into the opening of the base plate if it is arranged in a recess in the insert.It is particularly advantageous if the recess has a limiting section. Preferably, the locking arm extends axially parallel to an insert base body. Preferably, the locking arm is designed to maintain a distance from the insert base body, with the recess preferably being configured to ensure this distance. Manufacturing the insert can be simplified, in particular, if exactly one locking arm is provided. Designing the release mechanism as a locking arm has proven especially advantageous for inserts manufactured using plastic.

[0023] According to a further embodiment of the invention, it is proposed that at least one of the coupling modules, in particular all coupling modules of a coupling module pair, preferably all coupling modules of the coupling device, has / have several connection points, wherein at least one connection point is configured as a receptacle and wherein one of the connection points is configured as a mounting counterpart. In particular, it is provided that the mounting counterpart has a contact surface for a contact section of a fastening element. Alternatively or additionally, it is particularly provided that two connection points are configured as mounting counterparts. The attachment of the corresponding coupling module can be simplified if it is provided that two diagonally opposite connection points are configured as mounting counterparts.It is further preferred that the diagonally opposite connection points, which are designed as mounting counterparts, are the outermost connection points. For example, in a top view, a mounting counterpart can be formed at the upper left connection point of a coupling module, and the diagonally opposite mounting counterpart at the lower right connection point. Alternatively, in a top view, the upper right connection point is designed as a mounting counterpart, and the lower left connection point is designed as a diagonally opposite mounting counterpart. An asymmetrical shape of the mounting counterparts facilitates the assembly of the fasteners and improves force transmission.

[0024] A closer distance between the connection points, particularly with a media channel angle other than 0°, is proposed according to a further embodiment of the invention, in that at least one of the coupling modules, in particular all coupling modules of a coupling module pair, preferably all coupling modules of the coupling device, has at least two stages and that at least one stage, in particular each of the stages, has a receptacle. It is particularly provided that the stages are arranged along an auxiliary line. Preferably, the auxiliary line extends between an outermost section of a first stage and an outermost section of a second stage. It should also be noted that the auxiliary line is preferably a fictitious auxiliary line. Fictitious within the meaning of the present invention is when the auxiliary line is arranged on the coupling module without being physically implemented.Alternatively or additionally, one or more of the steps may have a side wall. For improved connection to the media channels, it is advantageous if the side wall forms a step angle with the step that is essentially equal to the media channel angle and / or 90°. The stability of a coupling module can be increased if the coupling module further comprises a support wall section, preferably connecting two adjacent steps. In particular, the auxiliary straight section and / or the support wall section may extend longitudinally, preferably essentially parallel to each other. A further increase in the stability of the coupling module can be achieved if the support wall section is arranged adjacent to a connection point.In particular, it can be provided that a retaining wall section, preferably two retaining wall sections, is / are arranged adjacent to each connection point of a step. Alternatively or additionally, it can be provided that the retaining wall section is arranged at an edge of the coupling module. In particular, it can be provided that one step, preferably an outer step, is designed without a retaining wall section.

[0025] The mounting of the coupling modules to the base plate can be improved if the base plate is provided with at least two counter-steps, in particular counter-steps corresponding to the steps of the coupling module. To minimize the risk of leakage, it is further proposed that, in the connected state, one step of the coupling module rests against a counter-step, in particular the corresponding counter-step, of the base plate. Preferably, the counter-steps form a counter-step angle with one of the media channels, wherein the counter-step angle is preferably substantially equal to the step angle, and more preferably substantially 90°. For example, it can be provided that the counter-step is formed by a media channel end section projecting from the base plate, in particular at a media inlet or at a media outlet. In this context, it has proven advantageous if the media channel end section is designed as a flat surface.To facilitate the attachment of the coupling module to the base plate, the mounting section may be designed to protrude from the base plate. In particular, the mounting section may be designed to protrude from the base plate essentially parallel to the end section of the media channel. Generally, it is advantageous if the mounting section has a flat surface against which the mating mounting section rests when connected.

[0026] The positioning of the coupling modules on the base plate can be improved if at least one of the coupling modules, in particular all coupling modules of a coupling module pair, preferably all coupling modules of the coupling device, has an undercut and the base plate has a projection, wherein, in the connected state, the projection is at least partially located in the undercut. A further improvement can be achieved if, in the connected state, the projection rests at least partially against a wall section of the undercut. Alternatively or additionally, the undercut can be formed on one of the steps of the coupling module. When the coupling module is attached to the base plate, the projection engages in the undercut. This guides the further movement of the coupling module relative to the base plate.A stop may be arranged at the undercut and / or the projection. The relative movement of the coupling module to the base plate can be facilitated by the stop bearing against a counter-stop on the other component, the base plate, or the coupling module.

[0027] To facilitate the assembly of connectors, it can further be provided that the receptacle of one of the coupling modules, in particular all coupling modules of a coupling module pair, preferably all coupling modules of the coupling device, has a snap-in recess for receiving a connector. The undercut can be additionally stabilized if the snap-in recess is designed adjacent to the undercut. Advantageously, the receptacles have a circular cross-section in plan view. In particular, it can be provided that all receptacles have the same size, for example, the same diameter. For optimized space utilization, it is advantageous if the receptacles of a coupling module are arranged evenly distributed on the coupling module. Two adjacent receptacles preferably have the same distance between them.For example, the mountings can be arranged in rows and columns. The media channels on the base plate can be at least partially spaced the same distance apart. In particular, the media channels of the base plate and the mountings of the coupling modules have the same arrangement pattern.

[0028] To seal the media channel against environmental influences and / or against the escape of a medium from the media channel, it is proposed that at least one sealing section, for example a sealing recess, be provided in the media channel for a seal. Preferably, one sealing section is arranged at the media outlet and one sealing section at the media inlet.

[0029] According to the invention, coupling modules are arranged on both sides of the base plate. Manufacturing effort can be reduced if the coupling modules arranged opposite each other on the base plate, for example, the coupling modules of a pair of coupling modules, are designed as identical modules. Preferably, the two opposing coupling modules, for example, the coupling modules of a pair of coupling modules, can be designed as mirror-symmetrical units with the base plate as the axis of symmetry. If several coupling modules are arranged on one side of the base plate, manufacturing effort can be reduced if two diagonally opposite coupling modules are designed identically. In particular, with identically designed coupling modules, the same tool, for example, an injection mold, can be used to manufacture all coupling modules.To facilitate the assembly and connection of the media lines, each coupling module, and in particular each receptacle, has an identifier, for example, a first identifier for the outside and a, preferably adjacent, identifier for the inside. To avoid confusion, it is further proposed that two adjacent coupling modules, which can be mounted on the same side of the base plate, be designed to be mirror images of each other.

[0030] In particular, it may be provided that the fastening sections for fastening two coupling modules arranged opposite each other on both sides of the base plate, for example a pair of coupling modules, are arranged opposite each other on both sides of the base plate.

[0031] To facilitate the fixing of two opposing coupling modules to the base plate, a further development of the invention proposes that an axial extension of the threaded inserts or internal threads on one side of the base plate and an axial extension of the threaded inserts or internal threads, for example at the opening of the base plate or in the case of a one-piece design of the threaded insert with multiple internal threads, on the opposite side of the base plate, enclose an angle equal to the media channel angle. In particular, it is provided that the threaded insert has two internal threads, a first internal thread and a second internal thread.The first internal thread interacts with a mounting section of one of the opposing coupling modules, in particular one coupling module of a coupling module pair. The second internal thread interacts with the mounting section of the other opposing coupling module, in particular the other coupling module of the coupling module pair, which is mounted on opposite sides. One of the internal threads, the first internal thread or the second internal thread, is preferably designed as a blind hole, while the other internal thread, the second internal thread or the first internal thread, is preferably designed as a through hole. In particular, the through hole can be arranged closer to the insertion end than to the head end, and the blind hole can be arranged closer to the head end than to the insertion end.If present, the anti-loosening feature is advantageously formed at the blind hole, i.e., adjacent to the blind hole, and in particular at least partially surrounding the blind hole. Additionally or alternatively, the threaded insert at the through hole may have a smaller radial extent than at the blind hole, for example, in axial extension to the locking arm. For example, a recessed edge may be provided at the blind hole.

[0032] Furthermore, the following procedure is proposed: A method for assembling a coupling device according to the invention, comprising the following steps, preferably to be carried out in the order mentioned: - Inserting a threaded insert with a blind internal thread and a through internal thread into an opening of a mounting section of the base plate, preferably inserting an identical threaded insert into each mounting section of the base plate, - in particular, attaching a base plate to a wall penetration, - Attaching and releasably fixing a coupling module to one side of the base plate by inserting a fastening element, which interacts with a fastening counterpart of the coupling module, into the internal thread of the threaded insert designed as a through hole, - Attaching and releasably fixing another coupling module to an opposite side of the base plate by inserting a fastening element cooperating with a fastening counterpart of the coupling module into the internal thread of the same threaded insert, which is designed as a blind hole.

[0033] Further embodiments and advantages of the method according to the invention result from the coupling device according to the invention, to whose embodiments and advantages reference is made in full and vice versa.

[0034] According to a further aspect, the invention relates to a base plate for a coupling device according to the invention. Therefore, all embodiments and advantages described above with regard to the coupling device apply equally to the base plate according to the invention and vice versa. The base plate has at least one mounting section on each side. Furthermore, the base plate has at least one media channel, wherein the media channel fluidically connects both sides of the base plate. The mounting sections are designed to attach at least one coupling module to the base plate on each side, in particular to detachably fix it by means of a fastening element. Each media channel has a media inlet and a media outlet. According to the invention, the media inlet and the media outlet of a media channel enclose a media channel angle, wherein the media channel angle is greater than 0° and less than 180°.

[0035] Furthermore, according to another aspect, the invention relates to the use of a base plate according to the invention in a coupling device according to the invention.

[0036] Therefore, the embodiments and advantages described with reference to the coupling device and the base plate apply equally to the use of the base plate according to the invention and vice versa.

[0037] According to a further aspect, the invention relates to a coupling module for a coupling device according to the invention, such that the embodiments and advantages listed with reference to the coupling device according to the invention apply equally to the coupling module and vice versa. According to the invention, the coupling module has at least one mounting counterpart and several receptacles for a connecting connector. The mounting counterpart of the coupling module is designed such that, in a connected state, a mounting section of the base plate interacts with the mounting counterpart of the adjacent coupling module via a fastening means in such a way that the coupling module can be detachably fixed to the base plate. Furthermore, in the connected state, the receptacles of the coupling module can each be arranged in line with the media inlet or outlet of the media channels of the base plate.

[0038] Another aspect of the invention relates to the use of a coupling module according to the invention in a coupling device according to the invention, so that the embodiments and advantages described with reference to the coupling device and the coupling module apply equally to the use of the coupling module according to the invention and vice versa.

[0039] Further advantageous embodiments of the invention will become apparent from the following description of the figures and the dependent subclaims.

[0040] They show: Fig. 1 a perspective view of a coupling unit according to the invention, Fig. 2 a perspective view of a base plate according to the invention, Fig. 3a a top view of the base plate with inserted threaded insert, Fig. 3b a sectional view through the base plate made of Fig. 3a along the intersection axis III-III, Fig. 4a a perspective view of a threaded insert according to a first embodiment, Fig. 4b a sectional view through the threaded insert made of Fig. 4a along the intersection axis IV-IV, Fig. 5a a perspective view of a threaded insert according to a second embodiment, Fig. 5b a sectional view through the threaded insert made of Fig. 5a along the intersection axis VV, Fig. 6a a perspective view of a coupling module according to the invention, Fig. 6b a sectional view through the coupling module from Fig. 6a along the intersection axis VI-VI, Fig. 7a a top view of the coupling unit from Fig. 1, and Fig. 7b a sectional view through the coupling unit from Fig. 7a along the section axis VII-VII.

[0041] In the various figures of the drawing, identical parts are always labelled with the same reference symbols.

[0042] The following description claims that the invention is not limited to the exemplary embodiments and not to all or several features of the described combinations of features; rather, each individual partial feature of the exemplary embodiment(s) is also significant for the subject matter of the invention, independent of all other partial features described in connection therewith, both on its own and in combination with any features of another exemplary embodiment.

[0043] In Fig. 1 is a coupling unit according to the invention for wall penetrations of media lines, generally designated by 1. The coupling unit 1 has a base plate 2 and coupling modules 3 (here four) arranged on both sides of the base plate 2.

[0044] The in Fig. The coupling unit 1 shown in Figure 1 comprises a first coupling module 3a, a second coupling module 3b, a third coupling module 3c, and a fourth coupling module 3d. The first coupling module 3a and the third coupling module 3c are arranged on a first side of the base plate 2. The second coupling module 3b and the fourth coupling module 3d are arranged on a second side of the base plate 2. The first coupling module 3a and the second coupling module 3b are opposing coupling modules arranged on both sides of the base plate 1, just as the third coupling module 3c and the fourth coupling module 3d are coupling modules arranged on both sides of the base plate 2, opposite each other. Thus, the first coupling module 3a and the second coupling module 3b form a coupling module pair. The third coupling module 3c and the fourth coupling module 3d also form a coupling module pair.Each coupling module pair consists of two coupling modules 3 that are associated with each other and fluidically connected via the base plate. The first coupling module 3a and the second coupling module 3b are identical, namely mirror-symmetrical with the base plate 2 as the axis of symmetry, with different sides at least in contact with the base plate 2. The third coupling module 3c and the fourth coupling module 3d are also mirror-symmetrical. The first and second coupling modules 3a, 3b are mirror images of the third and fourth coupling modules 3c, 3d, respectively, which are arranged adjacently. Thus, the first coupling module 3a and the fourth coupling module 3d are identical, and the second coupling module 3b and the third coupling module 3c are also identical.

[0045] Furthermore, the base plate 2 has at least one fastening section 4 on each side (here four on each side), as for example in the Fig. 2 and Fig. 3b shown. The fastening sections 4 are designed to attach a coupling module 3 to the base plate 2 on both sides, in particular to fix it detachably.

[0046] Furthermore, the base plate 2 has several media channels 5. In Fig. 3b is an example of a media channel 5, identified by a reference symbol. The media channels 5 fluidically connect the coupling modules 3. Each of the media channels 5 has a media inlet 5a and a media outlet 5b.

[0047] Each of the coupling modules 3 has at least one mounting counterpart 6, here two mounting counterparts 6. In a connected state, as is the case, for example, in the Fig. 1, Fig. 7a and Fig. As shown in Figure 7b, the fastening sections 4 of the base plate 2 and the opposing fastening sections 6 of the adjacent coupling module 3 each interact with each other via a fastening means 7, so that the coupling module 3 is detachably fixed to the base plate 2.

[0048] The coupling modules 3 also have several receptacles 8, here seven receptacles 8, wherein in Fig. 1. Only one receptacle 8 is shown, exemplarily, with a reference numeral. In the connected state, each receptacle 8 is arranged as an extension of a media channel 5, namely as an extension of the media inlet 5a of the media channel 5 or as an extension of the media outlet 5b of the media channel 5. Each receptacle 8 is designed to receive a connector 9. A connection is established via the connector 9 between a media line (not shown), for example, a fluid-carrying media line, and the media channel 5 on which the receptacle 8 is arranged. The connector 9 can be designed, for example, as a sleeve or as a plug connector.

[0049] The media inlet 5a and the media outlet 5b of a media channel 5 enclose a media channel angle α. In particular, an inlet longitudinal axis La passing through the media inlet 5a and an outlet longitudinal axis Lb passing through the media outlet 5b enclose the media channel angle α. The media channel angle α is greater than 0° and less than 180°. As in Fig. As shown in Figure 3b, the media channel angle α of the present embodiment is 90°. The media channels 5 are arranged uniformly on the coupling module 3, have a circular cross-section and the same diameter.

[0050] The base plate 2 of the exemplary embodiment is made of polyamide. To prevent damage to the base plate 2, a threaded insert 10 is arranged in each of the mounting sections 4 of the base plate 2, in particular in an opening 4a of the mounting section 4. The threaded insert 10 is secured against rotation. Furthermore, the threaded insert 10 extends from a head end 10a to an insertion end 10b. The threaded insert 10 is first inserted into the mounting section 4 with the insertion end 10b. A head 11 is arranged at the head end 10a.

[0051] In the Fig. 4a and Fig. Figure 4b shows a first embodiment of the threaded insert 10. The threaded insert 10 according to the first embodiment is made of metal, preferably brass. To prevent rotation, the threaded insert 10 has two stops 12. The stops 12 are arranged on the head 11, so that the head 11 has a symmetrical contour in plan view. In the connected state, the stops 12 abut a counter-stop on the base plate 2. Thus, the base plate 2 has a counter-contour corresponding to the symmetrical contour of the threaded insert 10.

[0052] To prevent the threaded insert 10 from penetrating too deeply into the fastening section 4, the threaded insert 10 has at least one contact surface 13. In the connected state, the contact surface 13 rests against a counter-contact surface of the base plate 2. In the present embodiment, the threaded insert 10 has two contact surfaces 13. A first contact surface 13a is located on the head 11. A second contact surface 13b is located axially closer to the insertion end 10b than to the head end 10a.

[0053] To prevent axial displacement, in particular to prevent unintentional loosening of the threaded insert 10, a loosening guard 15 is also provided. In the Fig. 4a and Fig. In the embodiment shown in 4b, the thread protection 15 is designed as knurling 16, namely as a fully circumferential knurling 16.

[0054] In the Fig. 5a and Fig. Figure 5b shows a second embodiment of the threaded insert 10. The threaded insert 10 according to the second embodiment is made of PARA. To prevent rotation, the threaded insert 10 according to the second embodiment has a stop 12. The stop 12 is arranged on the head 11, so that the head 11 has an asymmetrical contour in plan view. The head 11 has a circular segment-shaped contour. The stop 12 is designed to bear against a counter-stop on the base plate 2 when connected.

[0055] To prevent the threaded insert 10 from penetrating too deeply into the fastening section 4, the threaded insert 10 has at least one contact surface 13, namely a threaded insert contact surface. In the connected state, the contact surface 13 rests against a counter-contact surface of the base plate 2. In the present embodiment according to the Fig. 5a and Fig. 5b The threaded insert 10 has two contact surfaces 13. A first contact surface 13a is located on the head 11. A second contact surface 13b is located axially closer to the insertion end 10b than to the head end 10a. The second contact surface 13a is designed as a projection.

[0056] In the Fig. 5a and Fig. In the embodiment shown in Figure 5b, the release guard 15 is designed as a locking arm 17. The locking arm 17 projects axially from the head 11 and is arranged in a recess 18 at a radial distance d from a threaded insert body 10c. The recess 18 is bounded axially to the insertion end 10b by a limiting section 19. In the present embodiment, the limiting section 19 is formed integrally with the second contact surface 13b.

[0057] Furthermore, a locking cam 17a is formed on the locking arm 17. The locking cam 17a projects outwards from the outer circumference of the threaded insert body 10c.

[0058] To fasten a coupling module 3, a fastening element 7 is guided through a through-hole 20 of the corresponding fastening section 6 of the respective coupling module 3. In the present embodiments, the fastening element 7 is designed as a screw. A contact section 7a of the screw head can bear against a contact surface 21 of the through-hole 20. To create a detachable connection between the fastening element 7 and the base plate 2, an internal thread 22 is provided in the fastening section 4 in the present embodiment.

[0059] As in the Fig. 4a, Fig. 4b, Fig. 5a and Fig. As shown in Figure 5b, the one-piece threaded insert 10 has two internal threads 22. A first axial extent A1 of one of the two internal threads 22 and a second axial extent A2 of the other of the two internal threads 22 enclose an angle β, where the angle β is equal to the media channel angle α.

[0060] A first internal thread is designed as a blind hole internal thread 22a, a second internal thread is designed as a through hole internal thread 22b. Alternatively, the two internal threads can be formed in two separate threaded inserts arranged adjacent to each other.

[0061] The anti-loosening element 15 surrounds the blind-lock internal thread 22a. Furthermore, the threaded insert 10 has a smaller radial extent R on the through-hole internal thread 22b than on the blind-lock internal thread 22a. The threaded insert 10 on the through-hole internal thread 22b has a recessed edge 23.

[0062] The in the Fig. The base plate 2 shown in Figures 1 to 3b has a plate-shaped base section 24. The base section 24 is essentially flat. Two opposing longitudinal sides 24a of the base section 24 extend essentially parallel to each other and in a plane E that extends orthogonally to a side section 24b of the base section 24.

[0063] Mounting sections 4 protrude from the base plate 24. For this purpose, the mounting sections 4 have a circumferential mounting section wall 4b. The media channels 5 have a circumferential media channel wall 5c projecting from the base plate 2. In addition, the base plate 24 has reinforcements 25.

[0064] For attachment to the wall section with the wall penetration, for example a driver's cab, the base plate 2 further has mounting openings 26, here four, wherein in Fig. 1 only one mounting opening 26 is marked with a reference sign.

[0065] In Fig. Figure 1 further shows that the coupling modules 3 each have an identifier 27. The identifier 27 is divided into two parts and has different sections for identifying an outer and an inner side of the coupling module 3.

[0066] Fig. Figure 6a shows a coupling module 3 according to the invention in a perspective view. A sectional view along the section axis VI-VI is shown. Fig. 6a is in Fig. 6b shown. The coupling module 3 has several connection points 28, here nine, wherein at least one of the connection points 28, here seven, is designed as a receptacle 8 and at least one connection point 28, here two, is designed as a mounting counterpart 6. Each of the mounting counterparts 6 has a contact surface 21 for a contact section 7a of the fastening element 7 (see Fig. 7b). The two mounting sections 6 are formed at diagonally opposite connection points 28, i.e., they are arranged along a fictitious diagonal D. In the present embodiment, the diagonal D runs through the center of the coupling module 3 and through two opposite corners of the coupling module 3. The two mounting sections 6 are arranged at the outermost connection points 28a. These outermost connection points 28a are diagonally opposite each other. The connection points 28 are all the same size and are evenly distributed on the coupling module 3.

[0067] Furthermore, the coupling module 3 has at least two, here three, stages 29. In each stage 29, at least one connection point 28 is arranged, and in the two outermost stages 29, a mounting counterpart 6 is arranged. The stages 29 are also arranged along a fictitious auxiliary line h. The auxiliary line h forms an angle γ with a stage 29, which corresponds essentially to half the media channel angle α.

[0068] Two of the steps 29 have a side wall 30. The side wall 30 forms a step angle δ with the adjacent step 29. The step angle δ corresponds essentially to the media channel angle α, here 90°. Furthermore, the coupling module 3 has a support wall section 31, here eight, which connects two adjacent steps 29. The support wall section 31 extends in the longitudinal direction L essentially parallel to the auxiliary line h. The support wall section 31 extends adjacent to a connection point 28. Two outermost support wall sections 31a are arranged at one edge of the coupling module 3. Additionally, one outermost step 29a is free of a support wall section 31.

[0069] As in Fig. As shown in 3b, the base plate 2 has at least two counter-steps 32, namely counter-steps 32 corresponding to the steps 29 of the coupling module 3. In the connected state, the steps 29 of the coupling module 3 each bear against a counter-step 32 of the base plate 2 (see Fig. 7b). Furthermore, a counter step 32 with one of the media channels 5 forms a counter step angle ε, wherein the counter step angle ε is preferably substantially 90°. The counter step 32 is formed by a flat surface 5d of a media inlet 5a or media outlet 5b projecting from the base plate 2. In the connected state, as in Fig. As shown in 7b, the fastening counterpart section 6 lies against the flat surface 5d.

[0070] Furthermore, the coupling module 3 has an undercut 33, as shown in Fig. 6b is shown. The undercut 33 is formed on a step 29. The base plate 2 has a Fig. 3b shows the projection 34. In the connected state (see Fig. 7b) the projection 34 at least partially engages in the undercut 33 and abuts a wall section 33a of the undercut 33.

[0071] To facilitate the use of connectors 9, in particular standardized connectors, the receptacle 8 has a locking recess 35. The locking recess 35 is formed adjacent to the undercut 33. In the present embodiment, a locking recess 35 has several spring-elastic locking lugs 36 arranged uniformly around the circumference of the locking recess 35. As shown in particular in Fig. As shown in Figure 7b, sealing elements 37 are arranged on the outer circumferences of the connection connectors 9 for sealing the media lines. Alternatively, sealing elements 37 can also be provided on the inner circumference of the media channel 5.

[0072] The invention is not limited to the embodiments illustrated and described, but also encompasses all embodiments that have the same effect within the meaning of the invention. It is expressly emphasized that the embodiments are not limited to all features in combination; rather, each individual feature can also have inventive significance independently of all other features. Furthermore, the invention is not yet limited to the combination of features defined in claim 1, but can also be defined by any other combination of specific features from all disclosed individual features. This means that, in principle, virtually any individual feature of claim 1 can be omitted or replaced by at least one individual feature disclosed elsewhere in the application. Reference symbol list 1 coupling unit 2 Base plate 3 Clutch module 3a first coupling module 3b second coupling module 3c third coupling module 3D fourth coupling module 4 Mounting section 4a Opening 4b Mounting section wall 5 Media Channel 5a Media entrance 5b Media outlet 5c Media channel wall 5D flat surface 6. Mounting counterpart 7 Fasteners 7a Plant section 8th recording 9 connectors 10 threaded insert 10a Head end 10b Introductory 10c Threaded Insert Body 11 heads 12 stops 13 Plant area 13a first site 13b second planting area 15 Protection against loosening 16 knurling 17 Raster arm 17a Rastnocke 18 recess 19 Boundary section 20 through holes 21 Plant area 22 internal threads 22a Blind hole internal thread 22b Through hole internal thread 23 recessed edge 24 Plate base section 24a Long sides 24b Section 25 Reinforcement 26 Mounting opening 27 Identifier 28 connection points 28a outermost connection point 29th level 29a outermost stage 30 side wall 31 Retaining wall section 31a outermost retaining wall section 32 Counterstage 33 Undercut 33a Wall section 34 lead 35 Raster recording 36 Resting platform 37 Sealing element A1 axial extent A2 axial extent d distance D Diagonal h Auxiliary line L Longitudinal direction La Inlet longitudinal axis Lb outlet longitudinal axis R radial extension α Media channel angle β angle γ angle δ Step angle ε Opposite angle QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 2006 077 264 A1

[0003]

Claims

[1] Coupling device (1) for wall penetrations of media lines, comprising a base plate (2) and coupling modules (3) arranged on both sides of the base plate (2), wherein the base plate (2) has at least one fastening section (4) on each side and has at least one media channel (5) fluidically connecting the coupling modules (3), wherein the media channel (5) has a media inlet (5a) and a media outlet (5b) respectively, wherein the coupling modules (3) each have at least one mounting counterpart (6) and several receptacles (8) for a connector (9), wherein in a connected state the fastening sections (4) of the base plate (2) interact with the fastening counterpart section (6) of the adjacent coupling module (3) via a fastening means (7) such that the respective coupling module (3) is detachably fixed to the base plate (2), wherein in the connected state the receptacles (8) of the coupling modules (3) are arranged in extension of the media inlet (5a) or the media outlet (5b) of the media channel (5). [2] Coupling device (1) according to claim 1, characterized by , that the media inlet (5a) and the media outlet (5b) enclose a media channel angle (α) and that the media channel angle (α) is greater than 0° and less than 180°. [3] Coupling device (1) according to claim 1 or 2, characterized by , that the base plate (2) is made of polyamide and that a threaded insert (10) secured against rotation is arranged in the respective fastening section (4) of the base plate (2). [4] Coupling device (1) according to claim 3, characterized by that the threaded insert (10) is made of metal, preferably brass, or of polyarylamide (PARA). [5] Coupling device (1) according to claim 1 and 2, characterized by, that the base plate (2) is made of polyarylamide (PARA) and that in the respective fastening section (4) an internal thread (22) is arranged directly in an opening (4a) of the base plate (2). [6] Coupling device (1) according to claim 3, characterized by , that a through hole (20) is arranged in the fastening counterpart section (6) of the respective coupling module (3). [7] Coupling device (1) according to claim 3, 4 or 6, characterized by , that the threaded insert (10) has a release protection (15), that the release protection (15) prevents axial movement of the threaded insert (10), in particular that the release protection (15) is designed as at least partially, preferably completely, circumferential knurling (16) and / or in particular that the release protection (15) is designed as a locking arm (17). [8] Coupling device (1) according to any one of claims 1 to 7, characterized by, that at least one of the coupling modules (3), in particular each of the coupling modules (3), has several connection points (28), wherein at least one connection point (28) is designed as a receptacle (8) and wherein one of the connection points (28) is designed as a fastening counterpart (6), in particular that the fastening counterpart (6) has a contact surface (21) for a fastening means (7), and / or in particular that two connection points (28) are designed as fastening counterparts (6), preferably that two diagonally opposite, outer connection points (28a) are designed as fastening counterparts (6). [9] Coupling device (1) according to any one of claims 1 to 8, characterized by, that at least one of the coupling modules (3), in particular each of the coupling modules (3), has at least two stages (29) and that at least one stage (29), in particular each stage (29), has a receptacle (8), in particular a stage (29) has a side wall (30), and the side wall (30) with the stage (29) encloses a step angle (δ) which is substantially equal to the media channel angle (α), preferably that the coupling module (3) with the stage (29) further comprises a support wall section (31), preferably that the support wall section (31) connects two adjacent stages (29). [10] Coupling device (1) according to any one of claims 1 to 9, characterized by, that at least one of the coupling modules (3), in particular each of the coupling modules (3), has an undercut (33) and the base plate (2) has a projection (34), wherein in the connected state the projection (34) is at least partially arranged in the undercut (33), in particular that the projection (34) in the connected state bears at least partially against a wall section (33a) of the undercut (33), and / or in particular that the undercut (33) is formed on one of the steps (29). [11] Coupling device (1) according to any one of claims 1 to 10, characterized by , that the receptacle (8) of at least one of the coupling modules (3), in particular of all coupling modules (3), has a snap-in receptacle (35) for receiving a connector (9), in particular that the snap-in receptacle (35) is formed adjacent to the undercut (33). [12] Coupling device (1) according to any one of claims 1 to 11, characterized bythat the coupling modules (3) arranged opposite each other on both sides of the base plate (2) are identical. [13] Coupling device (1) according to any one of claims 3 to 12, characterized by , that an axial extent (A1) of the threaded inserts (10) or the internal threads (22, 22a) on one side of the base plate (2) and an axial extent (A2) of the threaded inserts (10) or the internal threads (22, 22b) on the opposite other side of the base plate (2) enclose an angle (β) equal to the media channel angle (α). [14] Base plate (2) for a coupling device (1) according to one of the preceding claims, wherein the base plate (2) has at least one fastening section (4) on each side and both sides (2a, 2b) of the base plate (2) have at least one fluidically connecting media channel (5), wherein the fastening sections (4) are designed to fasten at least one coupling module (3) to the base plate (4) on both sides, wherein the media channel (5) has a media inlet (5a) and a media outlet (5b) characterized by , that the media inlet (5a) and the media outlet (5b) of a media channel (5) enclose a media channel angle (α) and wherein the media channel angle (α) is greater than 0° and less than 180°. [15] Base plate (2) for a coupling device according to claim 14, characterized by the features of the base plate (2) according to one of claims 2 to 13. [16] Use of the base plate (2) according to claim 14 in a coupling device (1) according to any one of claims 1 to 13. [17] Coupling module (2) for a coupling device (1) according to any one of claims 1 to 13, characterized by , that the coupling module (3) has at least one mounting counterpart (6) and several receptacles (8) for a connecting connector (9), wherein the mounting counterpart (6) of the coupling module (3) is designed such that, in a connected state, a mounting section (4) of the base plate (2) can interact with the mounting counterpart (6) of the adjacent coupling module (3) via a fastening means (7) in such a way that the coupling module (3) can be detachably fixed to the base plate (2). wherein in the connected state the receptacles (8) of the coupling module (3) can each be arranged in extension of the media inlet (5a) or the media outlet (5b) of the media channel (5) of the base plate (2). [18] Coupling module (3) for a coupling device (1) according to claim 17, characterized by the features of the coupling module (3) according to any one of claims 2 to 13. [19] Use of a coupling module (3) according to claim 17 in a coupling device (1) according to any one of claims 1 to 13.

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