EP4324060A1

EP4324060A1 - Multi-cable entry system

Info

Publication number: EP4324060A1
Application number: EP22723369.9A
Authority: EP
Inventors: Valerio ROSAMILIA; Martin Eggenschwiler; Niklaus Meier
Original assignee: Agro AG
Current assignee: Agro AG
Priority date: 2021-04-16
Filing date: 2022-04-14
Publication date: 2024-02-21
Also published as: CH718543A2; WO2022219142A1

Abstract

The invention relates to a multi-cable entry system (1) for inserting at least one line into a wall, comprising a base (2) and a clamping plate (3) which can interact with the base (2). The base (2) comprises multiple first openings (5) in the axial direction, said openings being coaxial to a plurality of second openings (6) arranged in the clamping plate (3). A respective passage element (4) is arranged within each of the plurality of second openings (6) at least in some regions. The base (2) additionally has a respective peripheral collar (8) protruding from one side (10) of the base (2) about each opening of the plurality of first openings (5), said collar having a distal end face (9) against which the respective passage element rests in the axial direction. In the process, the collar (8) is at least partly immersed into the second opening (6) which is coaxial to the respective first opening (5) when the multi-cable entry system (1) is clamped.

Description

multiple introduction

TECHNICAL AREA

The present invention relates to a multiple entry for inserting at least one line into a wall. The present invention also relates to a cable entry for inserting at least one cable into a wall.

BACKGROUND OF THE INVENTION

Various multiple insertions are known from the prior art. An example of such a multiple entry is shown in EP3566274 from the same applicant, which comprises a frame-shaped lower part and an upper part, each with a through-opening for passing through at least one line. The multiple entry also comprises at least one feed-through element for feeding through the at least one line through the multiple entry, wherein the at least one feed-through element is arranged in an area that is located within the contour of the through-opening of the frame-shaped lower part.

PRESENTATION OF THE INVENTION

An object of the invention is to further improve the clamping and sealing of a line to be inserted through the multiple entry.

This object is solved by the multiple insertion defined in the independent claim. The present invention relates to a multiple entry for inserting at least one line into a wall. The at least one line can be an electrical line (eg a cable), a hose line (eg pneumatic or hydraulic hose line), an optical waveguide or a pipeline. If several lines are introduced, the lines can also have a different shape from one another. The wall can be a housing wall of an electrical device (for example a control cabinet wall or a machine housing wall), a building wall or the like. The multiple entry includes a base plate, a clamping plate and several feed-through elements. Depending on the design, either the base plate or the clamping plate can be used to attach the multiple lead-in to the wall. For this purpose, the multiple insertion can include fastening elements. The fastening elements can be screws, nails, rivets or the like. Advantageously, the fasteners extend through the base plate (to secure it to the wall). The base plate further comprises a plurality of first openings in an axial direction for respectively passing through at least one line. The clamping plate can be operatively connected to the base plate, in particular via clamping elements, such as screws or the like. For this purpose, the clamping elements can extend through the clamping plate into the base plate. However, these advantageously do not extend through the entire base plate. Depending on the design, the base plate and/or the clamping plate can also be designed in several parts. For example, the base plate and/or the clamping plate can each have at least two partial plates exhibit. A joint between the at least two sub-plates is preferably flush. The first and/or second openings can be arranged between the respective sub-plates such that part of the first and/or second opening is on one of the sub-plates and the other part of the first and/or second opening is on another of the sub-plates is arranged. The clamping plate further comprises a plurality of second openings, which are coaxial with the respective first openings of the base plate, for the respective passage of the at least one line. The respective first openings and/or the second openings can be configured cylindrically at least in certain areas and/or conical at least in certain areas. In the case of an at least partially conical configuration of the first opening, the diameter of the respective first opening advantageously increases in the axial direction and towards the clamping plate. In the case of an at least partially conical configuration of the respective second opening, the diameter of the second opening advantageously increases in the axial direction and towards the base plate. The multiple insertion includes a lead-through element for each first and coaxial second opening. The respective lead-through element is arranged in a tensioned state of the multiple insertion at least in regions within the first and/or second openings (assigned to the respective lead-through element). The clamped state is to be understood here in such a way that the clamping plate is pulled (or clamped) against the base plate via the clamping elements and clamps the respective lead-through elements in between. The through-leading element can here in the axial direction at least partially between the base plate and the clamping plate can be arranged. The respective feed-through element can also have at least one third opening for feeding through the line. The number and design of the at least one third opening can vary depending on the application. At least a third opening for a flat cable or other cable geometries is also conceivable. Depending on the application, the respective lead-through element can also have several third openings for leading through several lines per lead-through element.

According to the invention, the multiple insertion includes a collar running around each of the plurality of first openings and protruding from a first side of the base plate. That is to say, the multiple insertion comprises a collar for each first opening which runs around the respective first opening and protrudes from a first side of the base plate. Advantageously, this is sleeve-shaped ausgestal tet. Depending on the application, the collar can be configured integrally with the base plate (for example molded onto the base plate). Alternatively, however, the collar can also be designed as a separate part. In this case, the base plate and the respective collar together can form a respective first opening. The first side is the side of the base plate that faces the clamping plate. The respective collar has a distal end surface which advantageously faces the clamping plate. This can be further normal to the axial direction. The collar and the distal end surface thus surround the first opening. The corresponding lead-through element rests against the distal end face in the axial direction (in the tensioned state). In In the tensioned state of the multiple insertion, the collar thus dips at least partially into the respective second opening (which is arranged coaxially with the first opening surrounded by the collar). Opposite the first side of the base plate is a second side of the base plate. This can be used for direct or indirect support on the wall. An indirect support is understood to be when there is another element between the wall and the base plate. For example, the multiple lead-in may include a flat gasket or sealing cord for sealing the base plate against the wall which bears against the base plate, in particular on the second side of the base plate. The flat seal advantageously includes at least one opening for at least one line that is routed through the multiple entry. Alternatively, the baseplate may also integrally include a seal for sealing the baseplate against the wall. For example, the base plate can be a two-component injection molded part for this purpose.

Depending on the design of the multiple entry, the lead-through element can comprise a clamping element and at least one sealing element, in particular a plurality of sealing elements arranged one inside the other. The at least one sealing element is advantageously arranged in the radial direction (at least in certain areas) within the clamping element. Advantageously, the clamping element further comprises a shoulder for positioning the at least one sealing element in the axial direction. For this purpose, the shoulder protrudes in the radial direction of the clamping element. The shoulder is preferably on one of the base plate or the wall facing Arranged at the end of the clamping element. The shoulder thus prevents the at least one sealing element from slipping through the clamping element. In an embodiment of the sealing element with a plurality of sealing elements arranged one inside the other, at least one or more of the sealing elements can further comprise such a shoulder. A shoulder on a sealing element also prevents the respective inner further sealing element from slipping through. The clamping element and/or the at least one sealing element can comprise a deformable component made of elastic plastic. However, the clamping element is advantageously less deformable than the at least one sealing element. The sealing element can form the line in a tightly closing manner. For this purpose, it is more advantageous if the sealing element elastically deforms back to its original shape after the line has been dismantled, ie has a good resilience value.

Depending on the configuration, the respective lead-through element, in particular the respective clamping element, can also comprise at least one first anti-rotation element on its outside, which (in the assembled and/or clamped state) is arranged with at least one second anti-rotation element in the first and/or or second opening cooperates. The first and second anti-rotation elements can thus prevent the respective feed-through element from rotating in the first and/or second opening. Depending on the configuration, the clamping element or the at least one sealing element can include a cover. The cover is advantageously thin-walled. The cover can also be formed on the clamping element or the at least one sealing element. The cover is used to protect the lead-through element from unwanted media, such as dust and/or dirt and/or water and/or gas and/or fire, if no line is routed through it. The cover can be designed as a membrane. The cover is advantageously arranged on an end of the clamping element or of the at least one sealing element pointing away from the base plate. However, the cover is advantageously attached to an outer sealing element of a plurality of sealing elements arranged in the clamping element.

Also possible is a variant in which the clamping element comprises a plurality of clamping fingers extending in the axial direction for clamping at least one sealing element. In this case, the clamping fingers advantageously extend in the axial direction from an annular base of the clamping element. Advantageously, the clamping fingers are evenly distributed around the circumference of the annular base. The at least one sealing element is then arranged at least in regions in the radial direction within the clamping fingers. Furthermore, the ring-shaped base can be arranged at least in regions within the respective collar in the tensioned state. The clamping element can comprise a plastic, in particular a thermoplastic. A cross section of the respective second openings of the clamping plate advantageously tapers away from the base plate in the axial direction, so that in particular a (first) shoulder is formed in the second opening. Depending on the design of the lead-through element, this (first) shoulder can be designed as a sudden cross-sectional reduction, as a conical shoulder (eg with a chamfer, in particular a chamfer of 30°-60°) or as a continuous (eg rounded) cross-sectional reduction.

A conical (first) shoulder is advantageous, for example, in the case of a clamping element with clamping fingers. The conical shoulder is advantageously designed in such a way that the distal ends of the clamping fingers slide off the conical shoulder when the clamping plate is clamped on the base plate and deform radially inwards. In this way, the at least one sealing element arranged in the clamping fingers is compressed. Also advantageous is the conical step in a one-piece lead-through element. In this case, the feed-through element can be arranged in some areas in the axial direction between the collar and the clamping plate. The one-piece feed-through element is usually particularly suitable for multiple third openings.

A sudden (first) step can, for example, comprise a bearing surface for the clamping element. The bearing surface and/or the distal end surface are then advantageously aligned normal to the axial direction. The abrupt shoulder with the bearing surface can be designed in such a way that the clamping element is arranged between the distal end of the collar and the bearing surface in the axial direction and when the clamping plate is braced against the base plate deformed radially inward. In this configuration, it is particularly advantageous if the clamping element, viewed from the axial direction, lies outside an inner contour of the second opening of the clamping plate. This means that an inner diameter of the clamping element can be larger than or equal to the smallest diameter of the respective second opening. In this configuration of the multiple insertion, the clamping element can have at least one circumferential recess on its outside. A recess or one of the plurality of recesses is advantageously arranged centrally between the two ends of the clamping element in the axial direction. This supports the local, radial deformation of the clamping element.

A continuously tapering (first) step is also conceivable in a lead-through element comprising a clamping element and at least one, preferably several, sealing elements arranged in the clamping element, as described above. Here, too, the clamping element can lie outside an inner contour of the second opening of the clamping plate, viewed from the axial direction.

The respective lead-through element or the clamping element advantageously rests against the distal end face of the collar in the axial direction. Alternatively or additionally, depending on the design, the first opening of the base plate can have a (second) shoulder for abutting the feed-through element in the axial direction. The (second) shoulder of the first opening can represent a (sudden) cross-sectional widening of the first opening in the axial direction and towards the tensioning element. Depending on the design, the first opening in the axial direction can be next to the (second) Paragraph and towards the clamping plate also include a circumferential groove. The shoulder of the clamping element described above is advantageously in the same axial position as this groove. This has the advantage that the clamping element can be partially deformed into the groove of the base plate (i.e. outwards in the radial direction), so that when the clamping element is deformed in the groove, the positioning of the at least one sealing element against the shoulder of the clamping element is released.

A contact spring for contacting a shielding of an electrical line/cable can be arranged in at least one of the plurality of first openings or in each case in all of the first openings. The contact spring is advantageously arranged in a circumferential recess in the first opening. This Ausneh determination can be designed as a receiving space, which has a collar on the side facing away from the clamping plate. The collar can be intended to fix the contact spring in a secure position in the axial direction. Viewed from the axial direction, the contact spring can comprise an omega-shaped contact area. Furthermore, viewed from the axial direction, the contact spring can have at least one arm for supporting the contact spring in the first opening. Advantageously, however, two arms protrude outwards in an arc from the respective ends of the omega-shaped contact area. The contact spring is advantageously formed in one piece (e.g. from sheet metal).

Depending on the configuration, the plurality of first openings in the base plate can each have a thread. An additional element can be attached to the respective thread the multiple entry, such as an insert or a hose fitting or a closure element or a cable gland or a pressure equalization element. As shown, the insert can have a through opening with a rounded inlet for a line. A closure element can also be used to close the first opening of the base plate. The inlet of the insert can also be closed with a closure element if required. The hose screw connections can have a socket for operative connection with the thread of the first opening of the base plate. The socket can be operatively connected to an intermediate piece which is coaxial with the socket. In its operatively connected state, the intermediate piece is advantageously arranged such that it can be rotated in relation to the connecting piece. A clamping nut can also be screwed onto the intermediate piece or alternatively directly onto the connecting piece. The clamping nut and the connecting piece and, if present, the intermediate piece are advantageously aligned coaxially with one another. A further sealing element, in particular in the form of a sealing ring, can be arranged in the axial direction between the clamping nut and the intermediate piece (or between the clamping nut and the connecting piece). The hose fitting is designed in such a way that when the clamping nut is tightened against the intermediate piece (or against the socket), the sealing element is radially compressed and thus seals a hose inserted into the hose fitting. The hose fitting is also designed in such a way that the hose ends in the axial direction between the sealing element of the hose fitting and in front of the lead-through element. A cable that is routed through the hose can thus be detached from the hose on the feed-through element be jammed and/or sealed. Such an extension has the advantage that any condensed water present in the hose cannot enter through the multiple introduction. Depending on the design, alternatively or in addition, the second openings arranged in the clamping plate can also have a thread for the respective operative connection of a hose connection or an insert or a closure element. Depending on the application, the hose fitting can also include anti-kink protection for the hose.

In principle, it is conceivable in all of the exemplary embodiments described to use the base plate or the clamping plate for the active connection to the housing wall. It is also conceivable in the respective first opening, in particular on the second side of the base plate, and/or in the respective second opening, in particular on the side of the clamping plate pointing away from the base plate, a thread for attaching the described additional elements of the multiple guidance (insert, hose connection, etc.) to be provided. The present invention also relates to a cable entry, in particular a multiple entry, for inserting at least one line into a wall comprising a base plate, a clamping plate and a feed-through element, but with the base plate only having a first opening and the clamping plate only having a second opening has at least one line for the respective implementation. Based on the previously described embodiment of Multiple lead-in according to the invention, the cable lead-in described below can also include fastening elements and/or the clamping plate can be operatively connected to the base plate via clamping elements.

The advantageous configurations of the multiple lead-in 5 described above can also be identical to the line lead-in now described. Accordingly, for example, the first opening and/or the second opening can likewise be designed at least in regions cylindrically and/or at least in regions conically. With an at least partially conical design of the first opening, the diameter of the first opening advantageously increases in the axial direction and towards the clamping plate. In the case of an at least partially conical configuration of the second opening, the diameter of the second opening advantageously increases in the axial direction and towards the base plate. When the cable entry is in a tensioned state, the lead-through element is arranged at least in regions within the first and/or second opening. The lead-through element can be arranged in the axial direction at least in regions between the base plate and the clamping plate. The feed-through element can further have at least one third opening for feeding through a respective line. The number and design of the at least one third opening can vary depending on the application. Similar to the previously described variants of the invention, the cable entry also includes a collar running around the first opening and protruding from a first side of the base plate. This collar is advantageously designed in the form of a sleeve. Depending on the application, the Collar designed integrally with the base plate (for example, formed on the base plate). Alternatively, however, the collar can also be designed as a separate part. Here, too, the lead-through element (in the tensioned state) rests in the axial direction on the distal end face of the collar. In the tensioned state of the cable entry, the collar thus dips into the second opening (which is arranged coaxially to the first opening surrounded by the collar) at least in some areas.

The cable entry with only a first opening, a second opening and one or more third openings differs from known cable glands in that the clamping plate is not screwed to the base plate via a thread concentric around the first and second opening. Instead, the conduit entry has multiple (separate) tensioning elements (as described above). These are advantageously distributed around the circumference of the first and/or second opening. A fastening element is preferably arranged between at least two of the plurality of clamping elements. It is conceivable, for example, that the fastening elements and the tensioning elements are arranged alternately over the circumference of the first and/or second opening. For this purpose, the clamping plate can have several recesses around the outer circumference of the clamping plate and/or have a wave-like or pinnacle-like outer contour viewed from the axial direction. In the corresponding savings from, in particular the recesses of the wavy or crenellated Outer contour, the fasteners (at least partially) are arranged in the assembled state. In this way, the fastening elements can be actuated from the axial direction.

Further variations of the cable entry are conceivable based on the previously described advantageous embodiments and variants of the multiple entry with several first and second openings.

BRIEF DESCRIPTION OF THE FIGURES

Aspects of the invention are explained in more detail on the basis of the exemplary embodiments shown in the following figures and the associated description. Show it:

Fig. 1 shows a perspective view of a first embodiment of the multiple insertion with a break-out;

FIG. 2 is a sectional view of part of the multiple insertion of FIG. 1; FIG. 3 is an exploded perspective view of the multiple entry of FIG. 1;

Figure 4 shows a perspective view of a second embodiment of the multiple insertion with a breakout;

Figure 5 shows a sectional view of part of the multiple insertion of Figure 4; Fig. 6 is an exploded perspective view of the multiple entry of Fig. 4;

Figure 7 shows a perspective view of a third embodiment of the multiple insertion with a breakout; Fig. 8 is a sectional view of part of the multiple insertion of Fig. 7;

Fig. 9 is an exploded perspective view of the multiple entry of Fig. 7;

Figure 10 shows an exploded perspective view of a fourth embodiment of the multiple insertion;

Fig. 11 shows a sectional view of the embodiment of the multiple insertion of Figure 10;

Fig. 12 shows a fifth embodiment of a multiple insertion in a perspective view; Fig. 13 shows a sectional view of the multiple insertion of Fig. 12;

Fig. 14 shows another embodiment of the invention in a front view;

Fig. 1 5 shows a perspective exploded view of the embodiment according to Figure 14. DESCRIPTION OF THE EMBODIMENTS

FIG. 1 to FIG. 3 show a first exemplary embodiment of the multiple insertion 1 . FIG. 1 shows the first exemplary embodiment in a perspective view obliquely from above with a breakout. FIG. 2 shows a section of a respective lead-through point for a line and FIG. 3 shows the multiple entry 1 in a disassembled state. The multiple lead-in 1 shown is suitable for the lead-in of one or more lines into a wall. The multiple lead-in 1 includes a base plate 2 for mounting the multiple lead-in 1 to a wall (not shown). As can best be seen from FIG. 3, for this purpose the base plate 2 comprises a plurality of first openings 5 in an axial direction for the respective passage of at least one line through the wall. In the configuration shown, the first opening is at least partially cylindrical, but configurations are also possible with at least partially conical first openings. The multiple lead-in 1 shown further comprises a clamping plate 3 which can be operatively connected to the base plate 2. The clamping plate 3 comprises a plurality of second openings 6 coaxial with the respective first openings 5 for the respective passage of the at least one line. As can best be seen from Figure 2, the exemplary embodiment shown of the multiple lead-in 1 comprises a feed-through element 4 which is arranged at least in regions within the plurality of first and second openings 5, 6. The feed-through element 4 has at least a third opening 7 for feeding through the line. The base plate 2 has a plurality of first openings 5, each of which runs around and has a collar 8 projecting from a first side 10 of the base plate 2. The respective collar 8 has a distal end surface 9 against which the respective feed-through element 4 bears in the axial direction when the multiple insertion 1 is in a tensioned state. The collar 8 preferably dips into the respective coaxial second opening 6 in some areas when the multiple insertion 1 is in the tensioned state (not shown here). The lead-through elements 4 shown advantageously each comprise at least one first anti-rotation element 24 which engages in each case a second anti-rotation element 25 of the base plate 2 arranged in the first opening 5 . In the exemplary embodiment shown, the multiple entry 1 comprises a plurality of bulges (first anti-rotation elements 24) arranged on the outside of the respective feed-through element 4 . In the clamped state, the bulges 24 engage in corresponding recesses 25 (second anti-rotation elements) in the first opening 5 .

As can be seen in FIG are arranged, include in the embodiment shown a cover to protect the feed-through element 4 from unwanted media when no line is performed. The cover shown is designed as a membrane. the Membrane is arranged at a pointing away from the base plate 2 end of the TES 16 sealing element. The membrane is arranged at the outermost of the plurality of sealing elements 16 and spans the entire cross-sectional area of the plurality of sealing elements 16. The shown clamping element 15 of the multiple lead-in 1 comprises a shoulder 17 for positioning the at least one sealing element 16 in the axial direction. The shoulder 17 is arranged on one end of the clamping element 15 which faces the base plate 2 . In the exemplary embodiment shown of the sealing element 16 with a plurality of sealing elements 16 arranged one inside the other, a plurality of sealing elements 16 also have a shoulder 17 for the respective internal sealing element 16 to bear against.

It can also be seen that the respective cross section of the plurality of second openings 6 of the clamping plate 3 tapers away from the base plate 2 in the axial direction. In the exemplary embodiment shown, the respective cross section of the plurality of second openings 6 tapers in particular continuously. The second openings 6 thus comprise a rounded first paragraph 1 2 in the axial direction. A bevelled paragraph (particularly with an incline of 30°- 60°) is, however, also conceivable. This is designed in such a way that in a tensioned state the clamping element 15 is pressed in the axial direction against the rounded shoulder 12 and this is thus deformed in the radial direction. As can also be seen from FIG. 2, the inner diameter of the respective clamping element 15 is advantageously the same for this purpose as the inner diameter of the respective first and/or the respective second opening 5, 6 arranged coaxially thereto. Through the deformation of the clamping element 1 5, the at least one sealing element 16 is braced in the radial direction and the line inserted therein is clamped and sealed. For good clamping and reliable sealing, it is advantageous if the clamping element 15 is less deformable than the at least one sealing element 16. It can also be seen that the respective cross section of the several first openings 5 of the base plate 2 in the axial direction differs from the clamping plate 3 is tapered away and a second paragraph 22 forms. In addition to the second paragraph 22 is preferably as shown towards the clamping plate 3 umlau Fende groove 14 is arranged. In the exemplary embodiment shown, the clamping element can be deformed in the radial direction into the groove 14 in such a way that, in a deformed state of the clamping element 15, the positioning in the axial direction of the at least one sealing element 16 against the shoulder 17 of the clamping element 15 is dissolved.

FIG. 4 to FIG. 6 show a second exemplary embodiment of the multiple insertion 1 . FIG. 4 shows the second exemplary embodiment of the multiple insertion 1 in a perspective view obliquely from above with a detail. FIG. 5 shows a section of a respective lead-through point for a cable and FIG. 6 shows the multiple lead-in 1 in a disassembled state. The second exemplary embodiment shown of the multiple lead-in 1 is suitable for the lead-in of at least one line into a wall. The multiple lead-in 1 comprises a base plate 2 for fixing the multiple lead-in 1 to the wall. the ba sis plate 2 comprises a plurality of first openings 5 in an axial direction for respectively passing through the wall at least one line. The multiple lead-in 1 shown also includes a clamping plate 3 that can be operatively connected to the base plate 2. The clamping plate includes a plurality of second openings 6, which are coaxial with the respective first openings 5, for the respective passage of the at least one line. The multiple lead-in 1 in each case comprises a feed-through element 4 arranged at least in regions within the plurality of second openings 6. The feed-through element 4 has at least one third opening 7 for feeding through the line. The base plate 2 has a plurality of first openings 5 which each have a peripheral collar 8 protruding from a first side 10 of the base plate 2 . The collar 8 has a distal end surface 9 against which the respective lead-through element rests in the axial direction. The collar 8 advantageously dips into the respective coaxial second opening 6 in the tensioned state of the multiple insertion 1 at least in certain areas. In the exemplary embodiment shown, a contact spring 20 for contacting a shielding of a cable can be arranged in each of the several first openings 5 of the multiple entry 1, in particular in a circumferential groove. FIG. 5 shows a sectional illustration of the second exemplary embodiment of the multiple insertion guide 1. The respective contact spring 20 is arranged in the respective first opening 5 in a receiving space 13. The receiving space 13 shown is designed as a continuous recess in the base plate 2 . In the second exemplary embodiment shown, the respective lead-through element 4 also includes a clamping element 15 and a plurality of sealing elements 16 arranged in the clamping element 15. The respective sealing element 16 can have a cover 23, as described in the context of the first exemplary embodiment. The respective clamping elements 1 5 are in this case arranged in the axial direction between the dista len end surface 9 and a first paragraph 1 2 of the second opening 6 of the clamping plate 3 . The clamping element 15 of the second exemplary embodiment is viewed from the axial direction outside an inner contour of the respective second opening 6 of the clamping plate 3. As can be seen from FIG. 5, the cross section of the respective second opening 6 is essentially constant in the axial direction and ends on the side pointing away from the base plate 2 in an essentially planar first step 12. The shown clamping element 15 also comprises, in the exemplary embodiment shown, a recess 26 running around the outside. In the clamped state, the clamping element deforms in the area of the recess 26 radially inward. This in turn deforms the seal element 16 in the radial direction and the line inserted therein is clamped and sealed.

It can also be seen from FIG. 6 that the second exemplary embodiment of the multiple inlet 1 can include a flat seal 21 which rests against the base plate 2 and on a second side 11 facing away from the clamping plate 3 . Such or a different type of flat seal can also be used with the other versions examples can be used. Alternatively, a sealing cord can also be used, or the base plate can be a two-component part with an integral seal.

FIG. 7 to FIG. 9 show a third exemplary embodiment of the multiple insertion 1 . FIG. 7 shows the third exemplary embodiment in a perspective view obliquely from above with a section. FIG. 8 shows an exemplary section of a respective lead-through point for two lines here, and FIG. 9 shows the multiple lead-in 1 in a disassembled state. This multiple inlet 1 also comprises a base plate 2 with a plurality of first openings and a clamping plate 3, which can be operatively connected to the base plate 2, with a plurality of second openings 6 coaxial with the respective first openings 5, as well as a feed-through element arranged at least in certain areas within the plurality of second openings 6 4. The base plate 2 has a plurality of first openings 5 which each have a circumferential collar 8 protruding from a first side 10 of the base plate 2 . The collar 8 has a distal end surface 9 against which the respective lead-through element rests in the axial direction. When the multiple insertion 1 is in the tensioned state, the collar 8 dips into the respective coaxial second opening 6 at least in some areas.

In the case shown, the lead-through element 4 can have more than one third opening 7 . The number and design of the at least one opening can vary depending on the application. At least one opening for a flat cable or other cable geometries is also conceivable. In Figure 9 are different variants of Feedthrough elements shown. The lead-through elements differ in the number of third openings 7. The respective third openings 7 are each used to pass through a line. It can be seen from FIG. 8 that the feed-through elements 4 are each arranged at least in regions within the plurality of first and second openings 5, 6. Furthermore, the lead-through elements 4 are made in one piece. It can be seen from FIG. 9 that the respective feed-through element 4 has at least one first anti-rotation element 24 which, in an assembled state, engages in at least one respective second anti-rotation element 25 of the base plate. In the exemplary embodiment shown, the multiple insertion 1 comprises a plurality of first and second anti-rotation elements 24, 25 in the form of bulges and/or recesses. For example, the bulges of the respective first anti-rotation element 24 can engage in corresponding recesses of the respective second anti-rotation element 25 in the clamped state. As can be seen from FIG. 8, the respective second opening 6 has a first shoulder 12 and the respective first opening 5 has a second shoulder 22. The cross section of the second opening 6 is essentially constant in the axial direction away from the base plate 2 and opens out in the first conical first step 1 2. The one-piece feed-through element 4 shown lies in the axial direction in areas between the distal end surface and the conical first step 12. In the tensioned state, this is compressed in the axial direction and the lines inserted therein are clamped and sealed . FIG. 10 and FIG. 11 show a fourth exemplary embodiment of the multiple entry 1. FIG. 11 shows a section of a respective penetration point for a cable and FIG. 10 shows the multiple entry 1 in a disassembled state. The multiple lead-in 1 also comprises a base plate 2 for fixing the multiple lead-in 1 to the wall. The base plate 2 of the fourth embodiment comprises a plurality of first openings 5 in an axial direction for respectively passing through the wall at least one line. The base plate 2 has a plurality of first openings 5, each of which has a circumferential collar 8 projecting from a first side 10 of the base plate 2. FIG. The multiple lead-in 1 further comprises a clamping plate 3 that can be operatively connected to the base plate 2. The clamping plate of the fourth exemplary embodiment comprises a plurality of second openings 6 coaxial with the respective first openings 5 for the respective passage of the at least one line. The multiple lead-in 1 shown comprises in each case a lead-through element 4 arranged in regions within the first and second openings 6. The lead-through element 4 has a third opening 7 for leading through the line.

As can be seen from FIG. 11, the lead-through element 4 of the fourth exemplary embodiment of the multiple entry 1 also comprises a clamping element 15 and at least one sealing element 16 arranged in it. The clamping element 15 has an annular base 19 and several in the axial direction he stretching clamping fingers 18 for clamping at least one sealing element 16 on. The clamping fingers 18 are evenly spaced around the circumference of the base 19 distributed. It can be seen from FIG. 10 that the sealing element 16 is arranged inside the clamping fingers 18 in the radial direction. It can be seen from FIG. 11 that the cross section of the respective second opening 6 in the axial direction pointing away from the base plate 2 is essentially constant and opens into a conical first shoulder 12 . In the tensioned state, the clamping fingers 18 are deflected in the radial direction in the area of the conical first shoulder 12 and the at least one sealing element 16 is compressed. In the exemplary embodiment shown, the base 19 is arranged at least in regions in the tensioned state in the radial direction within the collar. The base 19 further comprises a shoulder 17 for positioning the clamping element 15 on the distal end face 9 in the axial direction. The collar 8 is immersed in the tensioned state of the multiple insertion guide 1 at least partially in the respective coaxial second opening 6, so that the clamping fingers between the distal end face 9 and the first shoulder 12 are deformed radially inwards. Figure 12 and Figure 13 show a fifth embodiment of the multiple insertion 1 according to the invention. The multiple entry 1 also includes a base plate 2 and a clamping plate 3. In the present case, the clamping plate 3 is used to attach the multiple entry 1 to the wall. As shown, a flat seal 21 can be arranged between the clamping plate 3 and the building wall (not shown). The base plate 2 comprises a plurality of first openings 5 in an axial direction for respectively passing through the wall at least one line, each having a circumferential collar 8 projecting from a first side 10 of the base plate 2 . The multiple lead-in 1 further comprises a clamping plate 3 which can be operatively connected to the base plate 2. The clamping plate comprises a plurality of second openings 6 coaxial with the respective first openings 5 for the respective passage of the at least one line.

The multiple lead-in 1 shown comprises in each case a lead-through element 4 arranged in regions within the second openings 6. The lead-through element 4 has a third opening 7 for leading through the line. The lead-through element 4 and the second opening 6 are essentially constructed in a similar way to the second exemplary embodiment according to FIGS. 4-6. However, configurations that are different from those described above are also conceivable. In the exemplary embodiment shown, the base plate 2 comprises a thread 30 at the respective first opening 5. The thread 30 is arranged on the second side 11 of the base plate facing away from the clamping plate. Depending on the application, an insert 27, a hose fitting 29 or a closure element 28 can be fastened in the respective thread 30. As shown, the insert 27 can have a through-opening with a rounded inlet 31 for a line. A closure element 28 serves to close the first opening 5 of the base plate 2 . The hose screw connections 29 can have a socket 32 for operative connection with the thread 30 of the first opening 5 of the base plate 2 . The socket 32 can be operatively connected to an intermediate piece 33 onto which a clamping nut 34 can be placed. The spacer 33 is close to that Nozzle 32 attached. However, the intermediate piece 33 enables it to be rotated about a central axis relative to the connecting piece 32. The clamping nut 34, the intermediate piece 33 and the connecting piece 32 are advantageously aligned coaxially with one another. A further sealing element 35, in particular in the form of a sealing ring, can be arranged in the axial direction between the clamping nut 34 and the intermediate piece 33. The hose fitting 29 is designed in such a way that when tightening the clamping nut 34 against the intermediate piece 33, the sealing element 35 is radially compressed and thus seals a hose inserted into the hose fitting 29. The sealing of the hose on the sealing element 35 of the hose fitting 29 is thus locally separate from the sealing of the line on the lead-through element 4.

Figure 14 and Figure 1 5 show another variant of the invention. This shows a cable entry, in particular in the form of a multiple entry 1, which differs from the previously shown variants in that the clamping plate 3 and the base plate 2 only have a first and second opening 5, 6, respectively. In contrast, the lead-through element 4 has one or more third openings 7 . Multiple clamping elements 36 are distributed around the circumference of the first and/or second opening 5, 6. (At least) one fastening element 37 is arranged between two adjacent clamping elements 36 . However, the fastening elements 37 and the clamping elements 36 are advantageously arranged alternately over the circumference of the first and/or second opening 5, 6. The clamping plate 3 can also have a number of recesses around the outer circumference of the clamping plate 3 38 have. In the assembled state and viewed from the axial direction, the fastening elements 37 are arranged in the corresponding recesses 38 . In this way, the fastening elements 37 can be actuated from the axial direction. It can be seen in FIG. 15 that in this embodiment too there is a collar 8 running around the first opening 5 and protruding from a first side of the base plate 2 . In a tensioned state, the lead-through element 4 bears against a distal end surface of the collar 8 in the axial direction (similar to the previous embodiments), and the collar 8 dips into the second opening 6 at least in certain areas.

The configuration of the illustrated first and second openings 5, 6 and the shape of the lead-through element 4 can be configured based on the previously described embodiments.

LIST OF REFERENCE MARKS

1 Multiple Introduction 22 (Second) Paragraph

2 base plate 23 cover

3 Clamping plate 24 First anti-rotation device

4 lead-through element

5 First opening 25 Second anti-twist

6 Second opening element

7 Third Opening 26 Recess

8 collar 27 insert

9 Distal end surface 28 Closure element

10 First page 29 Hose fitting

1 1 Second side 30 thread

1 2 (First) Paragraph 31 Enema

13 receiving space (contact 32 socket spring) 33 intermediate piece

14 groove 34 collet nut

1 5 clamping element 35 sealing element

16 sealing element (hose screw connection)

17 shoulder 36 clamping element

18 clamping fingers 37 fastener

19 base 38 recess

20 contact spring

21 flat gasket

Claims

PATENT CLAIMS

1 . Multiple entry (1) for introducing at least one line into one

wall comprising a. a base plate (2) with a plurality of first openings (5) in an axi

5 ale direction for the respective passage of the at least one line; b. a clamping plate (3) which can be operatively connected to the base plate (2) and has a plurality of second openings (6) coaxial with the respective first openings (5) for the respective passage of the at least one line; c. in each case one lead-through element (4) which is arranged at least in regions within the plurality of second openings (6) and which has at least one third opening (7) for leading through the line; and 5d. one around each of the several first openings (5) encircle the collar (8) protruding from a first side (10) of the base plate (2) and having a distal end surface (9) on which the respective lead-through element (4) in the axial direction, and wherein the collar (8) is in a stressed state of multiple insertion ( 1 ) dips into the respective coaxial second opening ( 6 ) at least in certain areas.

2. Multiple lead-in (1) according to patent claim 1, characterized in that the respective collar (8) is integrally formed on the base plate (2) or is designed as a separate, sleeve-shaped part.

3. Multiple lead-in (1) according to one of the preceding patent claims, characterized in that the feed-through element (4) arranged partially within the respective plurality of second openings (6) is also partially arranged in the corresponding coaxial first openings (5).

4. Multiple lead-in (1) according to one of the preceding patent claims, characterized in that the respective lead-through element (4) in the axial direction is at least partially between the base plate (2) and the clamping plate (3), in particular at least partially between the collar (8 ) and the clamping plate (3) is arranged.

5. Multiple lead-in (1) according to one of the preceding patent claims, characterized in that the plurality of second openings (6) each have a cross-section taper in the axial direction away from the base plate (2).

6. Multiple lead-in (1) according to claim 5, characterized in that the cross-sectional narrowing is a first step (12), in particular a conical or rounded first step.

7. Multiple lead-in (1) according to patent claim 6, characterized in that the plurality of first openings (5) each have a second shoulder (22) for abutting the respective lead-through element (4) in the axial direction.

8. Multiple lead-in (1) according to claim 7, characterized in that the respective first openings (5) comprise a circumferential groove (14) in the axial direction next to the second shoulder (22) and facing the clamping plate (3).

9. Multiple lead-in (1) according to one of the preceding patent claims, characterized in that the respective lead-through element (4) comprises a clamping element (15) and at least one sealing element (16) arranged in the clamping element (15).

10. Multiple lead-in (1) according to patent claim 9, characterized in that several sealing elements (16) are arranged in the clamping element (15).

1 1. Multiple insertion (1) according to patent claim 9 or 10, characterized in that the clamping element (15) and the at least one sealing element (16) comprises a deformable component made of elastic plastic and the clamping element (15) is less deformable as the at least one sealing element (16).

12. Multiple insertion (1) according to one of the preceding claims 9-11, characterized in that the clamping element (15) viewed from the axial direction is outside an inner contour of the respective second openings (6) of the clamping plate (3).

13. Multiple insertion (1) according to one of Patent Claims 9 - 12, characterized in that the clamping element (15), in particular at an end facing the base plate, has a shoulder (17) for positioning the at least one sealing element (16) in the includes axial direction.

14. Multiple lead-in (1) according to patent claims 8 and 13, characterized in that the clamping element (15) is designed such that it can be deformed in the radial direction into the groove (14), so that in a deformed state of the clamping element (15) in the groove (14), the positioning in the axial direction of the at least one sealing element (16) against the shoulder (17) of the clamping element (15) is resolved.

15. Multiple insertion (1) according to patent claim 9 or 10, characterized in that the clamping element (15) comprises several clamping fingers (18) extending in the axial direction for clamping at least one sealing element (16).

16. Multiple lead-in (1) according to one of the preceding patent claims, characterized in that a contact spring (20) for contacting a shielding of a line in the form of a cable is arranged in each of the plurality of first openings (5).