WO2025244572A1

WO2025244572A1 - A sealing module and a method for leading a conduit through a partition, use of such a sealing module and a lead-through system

Info

Publication number: WO2025244572A1
Application number: PCT/SE2025/050494
Authority: WO
Inventors: Jakob GÖRTZ
Original assignee: Roxtec AB
Current assignee: Roxtec AB
Priority date: 2024-05-24
Filing date: 2025-05-23
Publication date: 2025-11-27
Anticipated expiration: 2026-11-24
Also published as: SE547994C2; SE2450566A1; WO2025244563A1

Abstract

A sealing module (13) for leading a conduit (11) through a partition, wherein the sealing module (13) comprises first and second compressible body parts (16a, 16b) with a groove (23) forming an opening for receiving the conduit (11). The sealing module (13) comprises first and second reinforcing elements (26a, 26b) with a recess (29) forming a through aperture for the conduit (11). The first and second reinforcing elements (26a, 26b) project into the opening formed by the grooves (23) of the first and second compressible body parts (16a, 16b). Disclosed is also a lead-through system (10) comprising one or more sealing modules (13). A method for leading a conduit (11) through a partition is also disclosed together with the use of the sealing module (13).

Description

A SEALING MODULE AND A METHOD FOR LEADING A CONDUIT

THROUGH A PARTITION, USE OF SUCH A SEALING MODULE AND A LEAD-

THROUGH SYSTEM

Technical Field

The present invention is related to a sealing module. More specifically the present invention is related to a sealing module for leading a conduit through a partition, such as a wall, floor, ceiling, roof, bulkhead, etc. The sealing module comprises an axis, a first compressible body part and a second compressible body part, wherein each of the first and second compressible body parts have a first end, a second end and a first side having an axially extending groove arranged from the first end to the second end, wherein the first sides of the first and second compressible body parts are facing each other, so that the grooves form an opening of the sealing module for receiving the conduit.

The present invention is also related to the use of such a sealing module. Also, the present invention is related to a lead-through system comprising one or more of such sealing modules, each of which is receiving a conduit therein. The present invention is also related to a method for leading a conduit through a partition.

Different types of sealing modules and lead-through systems are used to lead conduits, cables and/or pipes through a wall or other partition. The conduit, cable or pipe extends in an axial direction and the partition often extends in a radial plane. To give a sealed lead-through some kind of seal is generally arranged inside an opening in the partition or inside a frame or sleeve placed in the opening in the partition. One example of seals comprises a number of compressible sealing modules, wherein each such module is to receive a conduit, cable or pipe. Such sealing modules are normally arranged inside the frame together with a compression unit for compressing the sealing modules within the frame. By means of the compression unit the sealing modules are compressed in one direction, such as radially, in such a way that the compressible modules will seal inwards around the conduits, cables and/or pipes and outwards against the inside of the frame.

Lead-through systems for conduits, cables and pipes are used in many different environments, such as for walls, floors and ceilings of buildings, ships, rolling stock, etc., as well as for different industrial environments, such as, telecom, power generation and distribution, as well as marine and offshore. They may have to seal against fluid, gas, fire, rodents, termites, dust, moisture etc. Many receive cables for electricity, communication, computers etc. or pipes for different gases or liquids such as water, compressed air, hydraulic fluid and cooking gas. Also conduits, such as corrugated plastic conduits and similar are used for lead-through systems of this type.

One problem with prior art sealing modules and lead-through systems for such conduits is that the holding and sealing properties thereof are unreliable.

Summary

In view of the above, one object of the present invention is to provide an improved sealing module with efficient and reliable holding and sealing properties.

The present invention is related to a sealing module for leading a conduit through a partition, wherein the sealing module comprises an axis, a first compressible body part and a second compressible body part, wherein each of the first and second compressible body parts has a first end, a second end and a first side having an axially extending groove arranged from the first end to the second end, wherein the first sides of the first and second compressible body parts are facing each other, so that the grooves form an opening of the sealing module for receiving the conduit, characterised in that the sealing module comprises a first reinforcing element extending at least partially in a radial direction and comprising a first side with a radially extending recess, that the sealing module comprises a second reinforcing element extending at least partially in a radial direction and comprising a first side with a radially extending recess, wherein the recess of the first reinforcing element and the recess of the second reinforcing element are facing each other to form an axially extending through aperture for receiving the conduit, and that the first and second reinforcing elements project into the opening formed by the grooves of the first and second compressible body parts. The reinforcing elements result in a sealing module with improved sealing against a conduit having a groove, such as a corrugated plastic conduit. The reinforcing elements prevent excess compression of the sealing module and thus reduce the risk of deformation of the conduit, which deformation leads to reduced sealing between the sealing module and the conduit and leads to increased risk of leakage. In addition, the reinforcing elements prevent axial displacement of the conduit and thus leads to improved holding of the conduit and stability of a lead-through system comprising the sealing module. Hence, the conduit can be securely sealed against the compressible body while being held in place by the reinforcing elements in an efficient manner. The conduit can be a conventional corrugated plastic conduit and thus comprises alternating circumferential ridges and grooves. The compressible body parts can then abut the outer surface of the conduit on a plurality of the ridges thereof for sealing against the conduit. The reinforcing elements prevents deformation of the conduit that otherwise may be the result of excess compression of the compressible body parts onto the conduit. At the same time, the reinforcing elements project into one of the grooves of the conduit to prevent axial displacement thereof and thus efficiently hold the conduit in place in the sealing module. The first reinforcing element can extend in a radial plane or can have a plate portion extending in such a radial plane perpendicular to the axis of the sealing module. The second reinforcing element, or a plate portion thereof, can extend in the same radial plane as the first reinforcing element.

The opening formed by the grooves of the first and second compressible body parts can have a circular cross section. Each of the grooves can have a semi-circular cross-section. Also, the aperture formed by the recesses of the reinforcing elements can have a circular cross-section. Each of the recesses can have a semi-circular crosssection. The opening formed by the grooves of the compressible body parts can have a greater diameter than the aperture formed by the recesses of the first and second reinforcing elements, so that the first and second reinforcing elements project into the opening around a circumference of the grooves of the first and second compressible body parts. Thus, a radius of the groove can be bigger than a radius of the recess. Alternatively, the reinforcing elements can be formed with one or more projections that can project into the groove of the conduit.

The sealing module is arranged so that the conduit extends in the axial direction of the sealing module. The axis of the sealing module and the axis of the conduit may then coincide. The compressible body parts may have an axis in the same direction. The opening of the sealing module and the grooves of the compressible body parts extend in the axial direction to lead the conduit in the axial direction through the sealing module.

The first compressible body part and the first reinforcing element can together form a first sealing module half, wherein the second compressible body part together with the second reinforcing element can form a second sealing module half. The first and second sealing module halves can be separable and can be arranged around the conduit. Each of the first and second sealing module halves can be prefabricated. The first and second sealing module halves can be similar or identical.

The first reinforcing element can abut the second reinforcing element, e.g. before compression of the sealing module. Hence, when the first sealing module half and the second module half are assembled on the conduit, the first reinforcing element can abut the second reinforcing element while they project into the groove of the conduit to prevent axial displacement of the conduit in relation to the sealing module also before compression of the sealing module. The first and second reinforcing elements can contact each other before compression of the sealing module. Alternatively, the first and second reinforcing elements can be arranged with a radial gap between them, wherein they are brought into contact with each other when the sealing module is compressed. For example, such a gap can be 1-5 mm, such as 1-2 mm. The first side of the first and second reinforcing elements can be formed with abutment portions on both sides of the recess, wherein the abutment portions of the first reinforcing element abut the abutment portions of the second reinforcing element. For example, the abutment portions can be L-shaped to provide increased stability and a substantial surface and reduces the risk that the first sides of the reinforcing elements slide passed each other. The recess can be arranged centrally in the first side of each of the reinforcing elements. The first and second compressible body parts can comprise a slot extending in a radial plane from the through opening, e.g. perpendicular to the axis of the sealing module and the compressible body parts. The first reinforcing element can be partially received in the slot of the first compressible body part and the second reinforcing element can be partially received in the slot of the second compressible body part. Hence, the reinforcing parts can be preassembled together with the compressible body parts to facilitate mounting on the conduit and other handling. The reinforcing elements can also be arranged centrally in the sealing module to provide a more uniform compression thereof. The first reinforcing element can project radially inward from the slot of the first compressible body part, and the second reinforcing element can project radially inward from the slot of the second compressible body part. Hence, the reinforcing elements can project from the slots and into the opening of the sealing module to engage the groove of the conduit.

Optionally, each of the first and second reinforcing elements can comprise two opposite edge portions extending in parallel axial planes to provide a more rigid structure of the reinforcing elements and/or to provide larger abutment portions for more secure abutment against each other. The reinforcing elements may comprise a sheet of material with bent edge portions. Each of the reinforcing elements can be formed as a plate extending in a plane with the recess arranged in the first side thereof and optionally with the edge portions extending at an angle to said plane, such as perpendicular to the same. Alternatively or in addition, the second side of the reinforcing elements may be formed by a portion extending in an axial plane, so that the second side is formed by a portion of the reinforcing element extending perpendicular to a portion provided with the recess.

The first and second reinforcing elements can be formed in metal, plastic, composite material, etc., to be uncompressible at least in the radial direction, so that the sealing module only is compressible to a predetermined extent in the direction of compression, such as by a compression unit. Hence, the reinforcing elements function as a stop for the compression, so that the degree of compression of the sealing module is limited. Each of the first and second reinforcing elements and each of the first and second compressible body parts can be formed with a second side opposite the first side thereof, wherein the second side of the first and second reinforcing elements are arranged with a radially extending gap to the second side of the first and second compressible body parts, so that the sealing module is radially compressible. Hence, the sealing module can be compressed a predetermined distance, such as a distance corresponding to the gaps, until the reinforcing elements function as a stop to prevent further compression. For example, the gap can be about 1/20-1/5, such as around 1/10, of a maximum distance between the first and second sides of the compressible body part. For example the gap is 2-20 mm or 2-10 mm depending on size and hardness of the compressible body parts. Hence, both of the sealing module halves are compressible until the reinforcing elements prevents further compression. Alternatively, only one of the first and second reinforcing elements are arranged with the gap, wherein the other can be flush with the second side of the compressible body part. In such a case, only one of the two sealing module halves is compressible.

The first compressible body part may be identical to the second compressible body part to facilitate production and assembly of the sealing module. Of course, they can be made different, e.g. to identify an upper and lower compressible body part or to be different in other ways without departing from the invention as defined in the appended claims. The first and second compressible body parts can be separable from each other, so that they easily can be mounted on a conduit and also dismounted therefrom if required.

The first reinforcing element may be identical to the second reinforcing element to facilitate production and assembly of the sealing module. Alternatively, the first and second reinforcing elements may be different. For example, only one of the reinforcing elements may be formed with the edge portions extending in axial planes and/or only one of them may be formed with a bent first or second side, or one or both can be formed with one or more holes to save material, etc.

The present invention is also related to the use of a sealing module as set out above for leading a conduit through a partition, wherein the conduit has an outer surface with at least one groove extending radially inward and in a circumferential direction around the outer surface of the conduit, and wherein the first and second reinforcing elements project radially into said groove. The use may optionally include that the conduit is a corrugated plastic conduit comprising a plurality of ridges and grooves, wherein the compressible body parts abut a plurality of the ridges of the conduit and wherein the first and second reinforcing elements project into one of said grooves. The use of the sealing module can be in a lead-through system comprising a compression unit compressing the sealing module in a radial direction until the first and second reinforcing elements prevents further compression.

The present invention is also related to a lead-through system for leading one or more conduits through a partition, comprising a frame, at least one sealing module as set out above arranged within the frame, and a conduit received in the sealing module, wherein the conduit has an outer surface with at least one groove extending radially inward and in a circumferential direction around the outer surface of the conduit, and wherein the first and second reinforcing elements project radially into said groove. The conduit can be a corrugated conduit comprising a plurality of ridges and grooves, wherein the first and second reinforcing elements project into one of said grooves, and wherein the first and second compressible body parts abut an outer surface of the ridges. The first and second reinforcing elements may optionally abut a bottom of said groove. The conduit can be a corrugated plastic conduit, such as a conventional corrugated plastic conduit. The lead-through system can comprise a compression unit, optionally comprising a plurality of cooperating wedges, for compressing the at least one sealing module.

The present invention is also related to a method for leading a conduit through a partition, comprising the steps of: a) arranging a first compressible body part of a sealing module on the conduit, so that the conduit is received in an axially extending groove arranged in a first side of the first compressible body part and extending from a first end to a second end thereof, b) bringing a first reinforcing element of the sealing module into an external groove of the conduit, c) arranging the conduit in a radially extending recess in a first side of the first reinforcing element, d) arranging a second compressible body part of the sealing module on the conduit, so that the conduit is received in an axially extending groove arranged in a first side of the second compressible body part and extending from a first end to a second end thereof, e) bringing a second reinforcing element of the sealing module into the external groove of the conduit, f) arranging the conduit in a radially extending recess in a first side of the second reinforcing element, g) arranging the first and second compressible body parts so that the first sides thereof are facing each other and the grooves thereof form an opening of the sealing module receiving the conduit, h) compressing the sealing module in a radial direction, wherein the first and second compressible body parts seal against the conduit.

Further objects and advantages of the present invention will be clear to a person skilled in the art when reading the detailed description below.

Brief Description of the Drawings

The invention will be described further below by way of embodiment examples and with reference to the enclosed drawings, in which:

Fig. 1 is a schematic front view of a lead-through system according to one embodiment, which lead-through system comprises different types of sealing modules, a compression unit, optional stayplates and a frame to be attached to a partition,

Fig. 2 is a schematic front view of a lead-through system according to another embodiment,

Fig. 3 is a schematic perspective view of a compressible body part of the sealing module according to a first embodiment, illustrating a groove and a slot thereof,

Fig. 4 is a schematic top view of the compressible body part of Fig. 3, Fig. 5 is a schematic section view of the compressible body part of Fig. 3, Fig. 6 is a schematic perspective view of a sealing module receiving a conduit according to a first embodiment, illustrating first and second compressible body parts, a first reinforcing element and a piece of intumescent material arranged in the slot of the first compressible body part,

Fig. 7 is a schematic front view of the sealing module and the conduit of Fig. 6, Fig. 8 is a schematic section view of the sealing module and the conduit of Fig.

6, illustrating the first and second compressible body parts, the first reinforcing element, a second reinforcing element and pieces of intumescent material of the sealing module,

Fig. 9 is a schematic section view of a part of the sealing module and the conduit of Fig. 8, illustrating the first and second reinforcing elements projecting into a groove of the conduit,

Fig. 10 is a schematic front view of the reinforcing element according to one embodiment thereof,

Fig. 11 is a schematic perspective view of the first and second reinforcing elements enclosing the conduit without the compressible body parts to illustrate the first and second reinforcing elements abutting each other,

Fig. 12 is a schematic perspective view of the conduit, the first and second reinforcing elements and pieces of intumescent material without the compressible body parts for illustration purposes,

Fig. 13 is a schematic perspective view of a sealing module receiving a conduit according to a second embodiment, wherein an optional stayplate of the sealing system is illustrated as well,

Fig. 14 is a schematic front view of the sealing module, conduit and stayplate of Fig. 12,

Fig. 15 is a schematic section view of the sealing module, conduit and stayplate of Fig. 13,

Fig. 16 is a schematic perspective view of the reinforcing elements and the conduit ofFig. 12 without the compressible body parts and the pieces of intumescent material, and

Fig. 17 is a schematic perspective view of the reinforcing elements, the pieces of intumescent material and the conduit ofFig. 12 without the compressible body parts. Description of Embodiments

With reference to Fig. 1, a lead-through system 10 for leading at least one conduit 11 through a partition is illustrated schematically according to one embodiment. The lead-through system 10 is optionally also arranged for passing at least one cable 12 and/or pipe through the partition. Such lead-through systems are also called transits or transit systems.

The lead-through system 10 is arranged for leading one or more conduits 11 through a partition in the form of a wall, floor, roof, ceiling, bulkhead, etc. The partition is not illustrated in the drawings. For example, the lead-through system 10 is arranged for leading one or more conduits 11 in the form of plastic conduits, such as corrugated plastic conduits, through the partition. Optionally, at least one of the conduits 11 is received uninterrupted through the lead-through system 10. For example, the lead- through system 10 is simultaneously arranged for passing cables 12, such as cables for electricity, communication, computers etc., or pipes for different gases or liquids, such as water, compressed air, hydraulic fluid, cooking gas or other types of liquids or gases, through the partition. Conduits 11, cables 12 and pipes are led in an axial direction through the lead-through system 10. Optionally, cables 12 and/or pipes are arranged inside one or more of the conduits 11.

The lead-through system 10 comprises one or more sealing modules 13, wherein each sealing module 13 is arranged for receiving a single conduit 11 and lead it through the partition. The lead-through system 10 also comprises a compression unit 14 and optionally stayplates 15. Optionally, the compression unit 14 and the stayplates 15, if applicable, are of conventional type.

Each of the sealing modules 13 for receiving the conduit 11 is compressible. The sealing modules 13 are resilient and each sealing module 13 comprises two opposite and compressible body parts 16a, 16b. Hence, the sealing module 13 comprises a first compressible body part 16a and a second compressible body part 16b. For example, the compressible body parts 16a, 16b are in the form of module halves, wherein each compressible body part 16a, 16b is a compressible module half. Optionally, the first and second compressible body parts 16a, 16b are identical.

In the embodiment of Fig. 1, the lead-through system also comprises optional sealing modules 17 for directly receiving cables 12 or pipes. The sealing modules 13 arranged for receiving a conduit 11 are different from the sealing modules 17 for directly receiving cables 12 or pipes. The sealing modules 17 for receiving the cables 12 or pipes can be arranged in a conventional manner and are not described in detail herein. As can be seen in Fig. 1 the sealing modules 17 for cables 12 and pipes may be arranged in different sizes and a plurality of different sealing modules may be arranged in different configurations. The sealing modules 17 for cables 12 and pipes may have peelable sheets for adapting a diameter to the cable 12 or pipe in a conventional manner. Sealing modules 17 for cables 12 and pipes not used for leading a cable 12 or a pipe through the partition may be provided with a blind plug in a conventional manner.

The lead through system 10 comprises a frame 18, wherein the one or more sealing modules 13 is/are arranged within the frame 18, optionally together with the one or more stayplates 15 and the compression unit 14. For example, the frame 18 is of a conductive material, such as metal. For example, the frame 18 is of conventional type. The sealing modules 13, 17 are compressible in the frame 18 by means of the compression unit 14. For example, the compression unit 14 is arranged within the frame 18 in a conventional manner. The sealing module 13 for receiving the conduit 11 is arranged so that an exterior surface of the conduit 11 contacts the compressible body parts 16a, 16b and the compressible body parts 16a, 16b are pressed toward the conduit 11 by means of the compression unit 14. For example, the compression unit 14 comprises a plurality of wedge elements operated by one or more screws 19 in a conventional manner.

With reference to Fig. 2 another embodiment of the lead-through system 10 is illustrated schematically, wherein the lead-through system 10 comprises a plurality of the sealing modules 13 for receiving the conduit 11, and also comprises the frame 18, the compression unit 14 and one or more optional stayplates 15. The embodiment of Fig. 2 illustrates three sealing modules 13 for receiving the conduit 11 and one sealing module 17 for directly receiving a cable 12 or a pipe but the lead -through system 10 can comprise any suitable number of sealing modules 13, 17. For example, the lead-through system comprises a single sealing module 13, two sealing modules 13 or any suitable number of sealing modules 13, arranged in a single row or a single column or in a plurality of rows, wherein the size and shape of the frame 18, compression unit 14 and optional stayplates 15 are adapted thereto. In an alternative embodiment, the frame 18 is arranged for compressing the sealing modules 13, 17, wherein the compression unit 14 is not required. For example, the frame 18 comprises at least a first side part that is connected to adjacent second and third side parts by means of screws, wherein the second and third side parts extend perpendicular to the first side part, so that the sealing modules 13, 17 can be compressed inside the frame 18 by means of tightening of the screws.

With reference to Figs. 3 to 5, the first compressible body part 16a is illustrated according to a first embodiment. The first compressible body part 16a has an axis A, a first end 20, a second end 21 and a first side 22 having an axially extending groove 23 arranged from the first 20 end to the second end 21. For example, the first compressible body part 16a is formed as a rectangular block with the groove 23 arranged in the first side 22. Hence, the first and second ends 20, 21 extend in parallel and radially extending planes perpendicular to the axis A. The first side 22, apart from the groove 23 therein, extends in an axial plane. The first compressible body part 16a also comprises a second side 24 opposite the first side 22 and lateral sides connecting the first side 22 and the second side 24. The lateral sides extend in parallel planes perpendicular to the first side 22 and the second side 24 and perpendicular to the first end 20 and the second end 21. The groove 23 is arranged for receiving the conduit 11. The groove 23 extends in the axial direction A. For example, the groove 23 has a semi-cylindrical crosssection, which may also be called a semi-circular profile. The first compressible body part 16a is resilient. For example, the first compressible body part 16a is formed in natural or synthetic rubber, such as an EPDM rubber, optionally with additional fillers. Alternatively, the first compressible body part 16a is formed in TPE. Two compressible body parts 16a, 16b can be put together around the conduit 11. For example, the second compressible body part 16b is similar to the first compressible body part 16a. The first compressible body part 16a comprises a slot 25 in the illustrated embodiment. The slot 25 is optional. The slot 25 extends radially outward from the groove 23. For example, the slot 25 extends in a plane perpendicular to the axis A. Optionally, the slot 25 is arranged centrally in the first compressible body part 16a in the axial direction. For example, the slot 25 forms a through opening from the groove 23 to the opposite second side 24 of the first compressible body part 16a. In the illustrated embodiment, the slot 25 extends beyond the groove 23 in the lateral direction, i.e. perpendicular to the axial direction, so that the slot 25 has a width bigger than a width of the groove 23. Also, the width of the slot is bigger than the diameter of the opening formed by the grooves 23. The extension of the slot 25 in the radial direction is bigger than the extension of the groove 23 in the radial direction. A lateral extension of the slot 25, i.e. between the lateral sides of the first compressible body part 16a, is bigger than the lateral extension of the groove 23. The second compressible body part 16b comprises the first end 20, the second end 21, the first side 22, the groove 23 and optionally also the slot 25 in a similar manner as the first compressible body part 16a. For example, the second compressible body part 16b is formed with the slot 25 similar to the first compressible body part 16a.

With reference to Figs. 6 to 9 the sealing module 13 according to a first embodiment is illustrated with the conduit 11 arranged through the opening thereof. Hence, the conduit 11 is received in the opening of the sealing module 13 formed by the grooves 23 of the first and second compressible body parts 16a, 16b. The sealing module 13 comprises the first and second compressible body parts 16a, 16b. The sealing module also 13 comprises a first reinforcing element 26a and a second reinforcing element 26b. The first and second reinforcing elements 26a, 26b are arranged for protecting and retaining the conduit 11. The first reinforcing element 26a is illustrated on its own in Fig. 10. The first and second reinforcing elements 26a, 26b may have corresponding features and may even be identical, wherein only the first reinforcing element 26a is illustrated and described in detail. For example, the first reinforcing element 26a is formed of metal, plastic material or composite materials. The first reinforcing element 26a is, e.g. uncompressible. The first reinforcing element 26a is at least more rigid than the material of the compressible body parts 16a, 16b. The first reinforcing element 26a comprises a first side 27 and an opposite second side 28, wherein the first side 27 is formed with a recess 29 for receiving the conduit 11. For example, the recess 29 is semi-circular. A radius of the recess 29 is smaller than a radius of the groove 23. Alternatively, the first reinforcing element 26a is formed with projections projecting radially inward beyond the groove 23. For example, the recess 29 is arranged centrally in the first side 27.

Optionally, the first reinforcing element 26a is formed with two opposite edge portions 30 extending in parallel axial planes. The first side 27 of the first reinforcing element 26a is formed with abutment portions 31 on both sides of the recess 29, wherein the abutment portions 31 of the first reinforcing element 26a abut corresponding abutment portions 31 of the second reinforcing element 26b when arranged together to enclose the conduit 11. For example, the abutment portions 31 of the first reinforcing element 26a abut the abutment portions 31 of the second reinforcing element 26b at least when the sealing module 13 is compressed, such as by the compression unit 14 or otherwise.

As illustrated in Figs. 6-9, the first and second reinforcing elements 26a, 26b extend in a radial plane and are arranged together with the first sides 27 thereof facing each other. The recess 29 of the first reinforcing element 26a and the recess 29 of the second reinforcing element 26b are facing each other to form an axially extending through aperture for receiving the conduit 11. For example, each of the first and second reinforcing elements 26a, 26b comprises a plate extending in a radial plane perpendicular to the axis A. Together, the first and second reinforcing elements 26a, 26b encloses the conduit 11. The first and second reinforcing elements 26a, 26b are contacting an outer surface of the conduit 11. The opening formed by the grooves 23 of the first and second compressible body parts 16a, 16b has a greater diameter than the aperture formed by the recesses 29 of the first and second reinforcing elements 26a, 26b. Hence, the first and second reinforcing elements 26a, 26b project into the opening formed by the grooves 23 of the first and second compressible body parts 16a, 16b.

The conduit 11 comprises at least one groove 32. For example, the conduit 11 is a corrugated conduit comprising a plurality of alternating ridges 33 and grooves 32 as can be seen particularly in Figs. 8 and 9. For example, the conduit 11 is made of plastic material. For example, the conduit 11 is a conventional corrugated plastic conduit. The first and second reinforcing elements 26a, 26b extend into the groove 32 or one of the grooves 32 of the conduit 11. Hence, the first and second reinforcing elements 26a, 26b extends radially into the groove 32. For example, the first and second reinforcing elements 26a, 26b project into the groove 32 of the conduit 11 along the recess 29. Optionally, the first side 27 along the recess 29 abuts an outer surface of the conduit 11 in a bottom of the groove 32. In the illustrated embodiment, the first and second reinforcing elements 26a, 26b are arranged in a centre portion of the first and second compressible body parts 16a, 16b. Alternatively, the first and second reinforcing elements 26a, 26b are arranged at the first end 20 or the second end 21 of the first and second compressible body parts 16a, 16b. The first reinforcing element 16a is arranged in the first compressible body part 16a, wherein the second reinforcing element 26b is arranged in the second compressible body part 16b. The first reinforcing element 16a extends in a radial plane, e.g. in parallel to and between the first and second ends 20, 21 of the first compressible body part 16a. The second reinforcing element 26b is arranged in a similar manner in the second compressible body part 16b.

In the illustrated embodiment, the slot 25 of the first compressible body part 16a is arranged for receiving the first reinforcing element 26a. The slot 25 is, e.g. arranged centrally in the first compressible body part 16a. For example, the slot 25 extends in parallel to and between the first and second ends 20, 21 of the first compressible body part 16a. Hence, the slot 25 extends radially from the groove 23 towards the second side 24 of the first compressible body part 16a. Optionally, the slot 25 extends to the second side 24 forming an opening in the second side 24.

In the illustrated embodiments, the sealing module 13 comprises first and second pieces of intumescent material 34a, 34b. The pieces of intumescent material 34a, 34b is, e.g. arranged in the slot 25 of each of the first and second compressible body parts 16a, 16b. Optionally, the first piece of intumescent material 34a is arranged together with the first reinforcing element 26a, such as within the edge portions 30 thereof, if applicable, wherein the second piece of intumescent material 34b is arranged with the second reinforcing element 26b in a similar manner. For example, the pieces of intumescent material 34a, 34b are arranged with an arched or semi-circular side, so that the pieces of intumescent material 34a, 34b at least partially enclose the conduit 11, which is illustrated in Fig. 12.

When mounted on the conduit 11, the conduit 11 is received in the grooves 23 of the compressible body parts 16a, 16b, wherein the compressible body parts 16a, 16b abut the outer surface of the conduit 11. For example, the compressible body parts 16a, 16b abut a top of the ridges 33 of the conduit 11, while the reinforcing elements 26a, 26b project into the groove 32 or one of the grooves 32 of the conduit 11. When the sealing module 13 is compressed, the compressible body parts 16a, 16b are pressed against the conduit 11. The reinforcing elements 26a, 26b limit the degree of compression of the compressible body parts 16a, 16b, and thus the sealing module 13, in the radial plane. Hence, the reinforcing elements 26a, 26b limit or prevent deformation of the conduit 11 when the sealing module 13 is compressed and improve sealing. The reinforcing elements 26a, 26b limit the degree of compression of the sealing module 13. At the same time, the reinforcing elements 26a, 26b prevent axial displacement of the conduit 11 inside the sealing module 13.

By means of the reinforcing elements 26a, 26b, the sealing module 13 is compressible to a certain extent and the degree of compression is limited. For example, the second side 28 of the first reinforcing element 16a is arranged with a radially extending gap 35 to the second side 24 of the first compressible body part 16a. The gap 35 is illustrated in Figs. 8 and 9. Hence, the first compressible body part 16a is compressible in the radial direction inward from the second side 28 a distance corresponding to said gap 35. The first compressible body part 16a extends beyond the second side of the first reinforcing element 26a. For example, the second side 24 of the first compressible body part 16a projects beyond the second side 28 of the first reinforcing element 26a in a direction from the axis A. For example, the second side 24 of the first compressible body part 16a extends in an axial plane arranged further away than an axial plane of the second side of the first reinforcing element 26a. The second reinforcing element 26b is, e.g. arranged in a similar manner as the first reinforcing element 26b. Alternatively or in addition, the abutment portions 31 of the first reinforcing element 26a are arranged with a gap to the first side of the first compressible body part 16a, so that the first compressible body part 16a is compressible in a radial direction from the first side 27 thereof (not illustrated). For example, the first and second compressible body parts 16a, 16b are compressible in the radial direction a distance until the abutment portions 31 of the first and second reinforcing elements 26a, 26b contact each other and prevent further compression. Hence, the first reinforcing element 26a is arranged with a gap to the first side 22 and/or the second side 24 of the first compressible body part 16a. The second reinforcing element 26b is arranged with a gap to the first side 22 and/or the second side 24 of the second compressible body part 16b. Alternatively, only one of the first and second reinforcing elements 26a, 26b is arranged with a gap to the first side 22 and/or the second side 24 of its compressible body part 16a, 16b. When the sealing module 13 is compressed, the second side 28 of the first and second reinforcing elements 26a, 26b will abut the frame 18, a stayplate 15 or the reinforcing element of an adjacent sealing module 13 while the abutment portions 31 thereof will abut the abutment portions 31 of the other of the first and second reinforcing elements 26a, 26b to prevent further compression of the compressible body parts 16a, 16b in the corresponding radial direction. The abutment portions 31 of the first reinforcing element 26a abutting the abutment portions 31 of the second reinforcing element 26b is illustrated in Fig. 11.

With reference to Figs. 13-17 a second embodiment of the sealing module 13 is illustrated schematically. The sealing module 13 of the alternative embodiment comprises the first and second compressible body parts 16a, 16b and the first and second reinforcing elements 26a, 26b as described above but with the difference that each of the first and second compressible body parts 16a, 16b is formed with first and second slots 25a, 25b, wherein the second slots 25b are provided with additional reinforcing elements 26c, 26d. Hence, the second slot 25b of the first compressible body part 16a is provided with a third reinforcing element 26c, wherein the second slot 25b of the second compressible body part 16b is provided with a fourth reinforcing element 26d. The first and second slots 25a, 25b are arranged in parallel with a gap between them but are otherwise formed as described above with reference to the first embodiment. In the first embodiment, the sealing module 13 comprises a single pair of reinforcing elements 26a, 26b, wherein the sealing module 13 in the second embodiment comprises two pairs of reinforcing s elements 26a-d. In further alternative embodiments, the sealing module 13 can comprise further pairs of reinforcing elements. The third and fourth reinforcing elements 26c, 26d are, e.g. arranged in a similar manner as the first and second reinforcing elements 26a, 26b. Hence, the first side 27 of the third and fourth reinforcing elements 26c, 26d projects into one of the grooves 32 of the conduit 11. The groove 32 receiving the third and fourth reinforcing elements 26c, 26d is spaced apart from the groove 32 receiving the first and second reinforcing elements 26a, 26b. Optionally, the third reinforcing element 26c is facing the first reinforcing element 26a, wherein the fourth reinforcing element 26d is facing the second reinforcing element 26b. The second side 28 of the third reinforcing element 26c is level with the second side of the first reinforcing element 26a and arranged with the gap 35 to the second side 21 of the first compressible body part 16a, wherein the second side 28 of the fourth reinforcing element 26d is level with the second side 28 of the second reinforcing element 26b and arranged with the gap 35 to the second side 21 of the second compressible body part 16b. Alternatively, or in addition to the gaps 35 the abutment portions 31 are arranged with a radial gap between the reinforcing elements in each of the pairs thereof. Optionally, a piece of intumescent material 34a-d is arranged in each of the slots 25a-b.

Claims

1. A sealing module (13) for leading a conduit (11) through a partition, wherein the sealing module (13) comprises an axis (A), a first compressible body part (16a) and a second compressible body part (16b), wherein each of the first and second compressible body parts (16a, 16b) has a first end (20), a second end (21) and a first side (22), wherein the first side (22) has an axially extending groove (23) arranged from the first end (20) to the second end (21), wherein the first sides (21) of the first and second compressible body parts (16a, 16b) are facing each other, so that the grooves (23) form an opening of the sealing module (13) for receiving the conduit (11), characterised in that the sealing module (13) comprises a first reinforcing element (26a) extending at least partially in a radial direction and comprising a first side (27) with a radially extending recess (29), the sealing module (13) comprises a second reinforcing element (26b) extending at least partially in a radial direction and comprising a first side (27) with a radially extending recess (29), wherein the recess (29) of the first reinforcing element (26a) and the recess (29) of the second reinforcing element (26b) are facing each other to form an axially extending through aperture for receiving the conduit (11), and the first and second reinforcing elements (26a, 26b) project into the opening formed by the grooves (23) of the first and second compressible body parts (16a, 16b).

2. The sealing module of claim 1, wherein the first reinforcing element (26a) is abutting the second reinforcing element (26b).

3. The sealing module of claim 1 or 2, wherein each of the first and second compressible body parts (16a, 16b) comprises a slot (25) extending in a radial plane from the through opening, and wherein the first reinforcing element (26a) is partially received in the slot (25) of the first compressible body part (16a), and the second reinforcing element (26b) is partially received in the slot (25) of the second compressible body part (16b).

4. The sealing module of claim 3, wherein the first reinforcing element (26a) projects radially inward from the slot (25) of the first compressible body part (16a), and the second reinforcing element (26b) projects radially inward from the slot (25) of the second compressible body part (16b).

5. The sealing module of claim 3 or 4, wherein a first piece of intumescent material (34a) is arranged in the slot (25) of the first compressible body part (16a), and a second piece of intumescent material (34b) is arranged in the slot (25) of the second compressible body part (16b).

6. The sealing module of any of the preceding claims, wherein each of the first and second reinforcing elements (26a, 26b) comprises at least two opposite edge portions (30) extending in parallel axial planes.

7. The sealing module of any of the preceding claims, wherein the opening formed by the grooves (23) of the first and second compressible body parts (16a, 16b) has a greater diameter than the aperture formed by the recesses (29) of the first and second reinforcing elements (26a, 26b), so that the first and second reinforcing elements (26a, 26b) project into the opening around a circumference of the grooves (23) of the first and second compressible body parts (16a, 16b).

8. The sealing module of any of the preceding claims, wherein the first side (27) of the first and second reinforcing elements (26a, 26b) is formed with abutment portions (31) on opposite sides of the recess (29), and wherein the abutment portions (31) of the first reinforcing element (26a) abut the abutment portions (31) of the second reinforcing element (26b).

9. The sealing module of any of the preceding claims, wherein the first reinforcing element (26a) is formed with a second side (28) opposite the first side (27) thereof, wherein the first compressible body part (16a) is formed with a second side (24) opposite the first side (22) thereof, and wherein the second side (28) of the first reinforcing element (26a) is arranged with a radially extending gap (35) to the second side (24) of the first compressible body part (16a).

10. The sealing module of claim 9, wherein the second side (24) of the first compressible body part (16a) projects beyond the second side (28) of the first reinforcing element (26a).

11. The sealing module of any of the preceding claims, wherein the second reinforcing element (26b) is formed with a second side (28) opposite the first side (27) thereof, wherein the second compressible body part (16b) is formed with a second side (24) opposite the first side (22) thereof, and wherein the second side (28) of the second reinforcing element (26b) is arranged with a radially extending gap (35) to the second side (24) of the second compressible body part (16b).

12. The sealing module of any of the preceding claims, wherein the second side (24) of the second compressible body part (16b) projects beyond the second side (28) of the second reinforcing element (26b).

13. The sealing module of any of the preceding claims, comprising a first sealing module half and second sealing module half, wherein the first sealing module half includes the first compressible body part (16a) and the first reinforcing element (26a), and the second sealing module half includes the second compressible body part (16b) and the second reinforcing element (26b), and wherein the first and second sealing module halves are separable from each other.

14. Use of a sealing module (13) according to any of the preceding claims for leading a conduit (11) through a partition, wherein the conduit (11) has an outer surface with at least one groove (32) extending radially inward and in a circumferential direction around the outer surface of the conduit (11), and wherein the first and second reinforcing elements (26a, 26b) project radially into said groove (32).

15. The use of claim 14, wherein the conduit (11) is a corrugated plastic conduit comprising a plurality of ridges (33) and grooves (32), wherein the compressible body parts (16a, 16b) abut a plurality of the ridges (33) of the conduit (11) and wherein the first and second reinforcing elements (26a, 26b) projects into one of said grooves (32).

16. The use of claim 14 or 15 in a lead-through system (10) comprising a compression unit (14) compressing the sealing module (13) in a radial direction until the first and second reinforcing elements (26a, 26b) prevents further compression.

17. A lead-through system (10) for leading one or more conduits (11) through a partition, comprising a frame (18), at least one sealing module (13) according to any of the preceding claims arranged within the frame (18) and a conduit (11) received in the sealing module (13), wherein the conduit (11) has an outer surface with at least one groove (32) extending radially inward and in a circumferential direction around the outer surface of the conduit (11), and wherein the first and second reinforcing elements (26a, 26b) project radially into said groove (32).

18. The lead-through system (10) of claim 17, wherein the conduit (11) is a corrugated conduit comprising a plurality or ridges (33) and grooves (32), wherein the first and second reinforcing elements (26a, 26b) project into one of said grooves (32), and wherein the first and second compressible body parts (16a, 16b) abut an outer surface of the ridges (33).

19. The lead-through system of any of claims 17-18, wherein the conduit (11) is a corrugated plastic conduit.

20. The lead-through system of any of claims 17-19, comprising a compression unit (14) for compressing the at least one sealing module (13).

21. The lead-through system of claim 20, comprising a frame (18), wherein the at least one sealing module (13) is arranged within the frame (18).

22. A method for leading a conduit through a partition, comprising the steps of a) arranging a first compressible body part of a sealing module on the conduit, so that the conduit is received in an axially extending groove (23) arranged in a first side of the first compressible body part and extending from a first end (20) to a second end thereof, b) bringing a first reinforcing element of the sealing module into an external groove of the conduit, c) arranging the conduit in a radially extending recess in a first side of the first reinforcing element, d) arranging a second compressible body part of the sealing module on the conduit, so that the conduit is received in an axially extending groove (23) arranged in a first side of the second compressible body part and extending from a first end (20) to a second end thereof, e) bringing a second reinforcing element of the sealing module into the external groove of the conduit, f) arranging the conduit in a radially extending recess in a first side of the second reinforcing element, g) arranging the first and second compressible body parts (16a, 16b) so that the first sides thereof are facing each other and the grooves (23) form an opening of the sealing module (13) receiving the conduit (11), h) compressing the sealing module in a radial direction, wherein the first and second compressible body parts seal against the conduit.