A transit for passing cables and / or pipes through a partition opening, use of such a transit and method for providing it

Abstract

A transit for passing at least one cable (11) and / or at least one pipe through an opening (22) in a partition (12). The transit comprises a first frame (21a), a second frame (21b) and operable fastening elements (27) for fastening the first frame (21a) to the second frame (21b). The frames (21a, 21b) comprise a frame member (22) and a clamping flange (23), so that the clamping flanges (23) can be clamped on opposite sides of the partition by operating the fastening elements (27). The first and second frames (21a, 21b) comprise a plurality of mutually aligned connection elements (25) and each of the fastening elements (27) connects one of the connection elements (25) of the first frame (21a) and the connection element (25) of the second frame (21b) aligned therewith. The fastening elements are operable for displacing at least one of the first and second frames (21a, 21b) towards the other for clamping thereof to the partition. Disclosed is also methods for providing the transit and uses of such a transit.

Description

[0001] A TRANSIT FOR PASSING CABLES AND / OR PIPES THROUGH A PARTITION

[0002] OPENING, USE OF SUCH A TRANSIT AND METHOD FOR PROVIDING IT

[0003] TECHNICAL FIELD

[0004] The present invention is related to a transit for passing at least one cable or pipe through a partition opening. More specifically, the present invention is related to such a transit comprises an axis, a first frame, a second frame and operable fastening elements for fastening the first frame to the second frame, and wherein each of the first and second frames comprises an axially extending frame member and a radially extending clamping flange, so that the clamping flanges of the first and second frames can be clamped on opposite sides of the partition by operating the fastening elements.

[0005] Transits of this type is generally used for passing cables and pipes through partitions, such as walls, floors, roofs and ceilings, including load bearing walls, outer walls and any other types of walls of building structures, such as industrial buildings, laboratories, research facilities, houses, apartment buildings, commercial buildings and other buildings. The transits are generally for passing 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.

[0006] The present invention is also related to the use of such a transit and a method for providing it.

[0007] BACKGROUND

[0008] A plurality of different transits for passing cables and pipes through a partition is known in the prior art. One prior art transit comprises a rectangular or circular frame receiving a number of sealing modules and a compression unit for compressing the modules. The frames are fastened to the partition around the partition opening by means of screwing or bolting the frame to the partition. Then, the sealing modules are arranged to enclose the cables and pipes and positioned inside the frame together with a compression unit, such as a wedge, wherein the sealing modules are compressed by means of the compression unit to press against the cables and pipes and against the inner walls of the frame to provide a sealed transit. However, for some applications there is a need to reduce the risk of contamination. For some applications there may also be a need to improve the sealing properties of such transits.

[0009] SUMMARY OF THE INVENTION

[0010] In view of the above, one object of the present invention is to provide a transit for passing at least one cable or pipe through a partition opening, which transit provides reduced risk of contamination and, for some applications, also improved sealing properties. The transit according to the present invention is particularly useful in applications where at least one side of the partition is subject to high hygiene requirements or demands low levels of particulates. In particular, the transit according to the present invention is advantageous in applications where both sides of the partition are subject to high hygiene requirements or demands low levels of particulates. For example, the transit according to one embodiment of the present invention may be particularly useful for cleanrooms, laboratories, hospitals and similar facilities and also facilities for sensitive equipment. The present invention is particularly useful between two such spaces. The present invention may also be particularly useful for particular types of partitions.

[0011] The present invention is related to a transit for passing at least one cable and / or pipe through an opening in a partition, wherein the transit comprises an axis, a first frame, a second frame and operable fastening elements for fastening the first frame to the second frame, and wherein each of the first and second frames comprises an axially extending frame member and a radially extending clamping flange, so that the clamping flanges of the first and second frames can be clamped on opposite sides of the partition by operating the fastening elements, characterised in that the first and second frames comprise a plurality of connection elements, wherein the connection elements of the second frame are aligned with the connection elements of the first frame, and each of the fastening elements connects one of the connection elements of the first frame and the connection element of the second frame aligned therewith and is operable for displacing at least one of the first and second frames towards the other for clamping the clamping flanges of the first and second frames on opposite sides of the partition.

[0012] The aligned connection elements connected to each other through the fastening elements according to the present invention makes it possible to clamp the first and second frames to opposite sides of the partition in an efficient and reliable manner without screws or screw holes exposed from any of the outer surfaces of the frames while the connection elements and the fastening elements can be sealed off inside the transit and inside the partition. The opening through the partition can be efficiently sealed in both ends by sealing modules and compression units, such as conventional sealing modules and compression units, to prevent dust and debris from the partition to enter any of the rooms on both sides of the partition and also to seal the opening in the partition to prevent leakage of liquids or gases from one side to the other side of the partition. Also, the exposed outer surfaces of both the first frame and the second frame can be arranged without holes for screws and operable screw heads, nut or similar that may collect contaminations. This is particularly useful for environments that demands for a high hygiene standard and / or low levels of particulates, such as laboratories, cleanrooms, surgery rooms and similar facilities as well as facilities for sensitive equipment, e.g. on both sides of the partition. Furthermore, the connection elements connected to each other through the fastening elements according to the present invention can be arranged radially outside of the opening of the frame members and thus do not obstruct the opening. Hence, the entire opening of each of the frame members can be used for sealing modules and one or more compression units. The frame members can be arranged without any inwardly projecting flanges or parts. Hence, the through openings of the frames can have a constant cross section area in the axial direction from one end to the opposite end of each of the frames, wherein the full cross section area of each of the frames can be used for sealing modules and one or more compression units.

[0013] The clamping flange can be connected to one end of the frame member and the connection elements can be connected to the opposite end thereof. Hence, the connection elements are inserted into the opening and are completely remote from the exposed outer surfaces, so that the connection elements and the fastening elements connecting them are sealed off in an efficient manner while providing frames that are easy to produce.

[0014] The connection elements can be connected to the frame member through a radially extending connection flange. The connection flange can extend radially outward, at a distance from and in parallel to the clamping flange. The connection flange is smaller than the clamping flange, so it can be inserted into the opening in the partition while the clamping flange engages the partition around the opening. The connection flange results in a frame that is easy to produce and can have a thinner frame while providing a favourable structure for carrying the connection elements and a strong frame for receiving the sealing modules and compression elements. Furthermore, the connection flange can project radially outwards only, leaving the through openings of the frames unobstructed.

[0015] The connection elements can be elongated and can extend in planes parallel to the frame member. For example, the connection elements can extend axially in a direction away from the frame member. Hence, the connection elements are easily accessible inside the partition for clamping of the frames. The connection elements can be distributed around the frame member for efficient clamping. The connection elements can be formed with threads for cooperation with threads of the fastening elements to provide the clamping of the frames in an efficient manner. The connection elements can be threaded rods for favourable manufacturing of the frames and easy installation. Alternatively, the connection elements can be tubes with inner threads. The connection elements and fastening elements can be arranged completely radially outside the openings of the frame members and the frames, leaving the openings with a constant cross section area unobstructed throughout the entire axial length of each of the frames. The first and second frames can be similar or identical.

[0016] The fastening elements can be arranged completely between the clamping flanges of the two oppositely arranged first and second frames. The fastening elements can also be arranged completely between the frame members of the first and second frames. The fastening elements can also be arranged completely between the connection flanges of the first and second frames. The fastening elements can be arranged to only partially overlap the connection elements in the axial direction. The fastening elements can be formed with a first thread and a second thread cooperating with the threads of aligned connection elements protruding toward each other to pull the first and second frames toward each other when the fastening elements are operated. The first and second threads can be arranged in opposite rotational directions to provide the clamping. Alternatively, the connection elements are formed with threads in opposite rotational directions to provide the clamping.

[0017] Each of the fastening elements can comprise an axis, a first end, an opposite second end, an axially extending first hole extending from the first end, and an axially extending second hole extending from the second end, wherein the first hole is formed with the first thread, and wherein the second hole is formed with the second thread. The fastening element can be a turnbuckle nut. Hence, efficient clamping of the frames can be achieved in an easy manner, wherein the fastening elements can be completely sealed off from both sides of the partition without obstructing any of the through openings of the frames.

[0018] The transit can comprise a plurality of sealing modules for receiving the cables or pipes, and a plurality of compression units for compressing the sealing modules, wherein at least one sealing module and at least one compression unit are arranged in the first frame member and at least one sealing module and at least one compression unit are arranged in the second frame member. The sealing modules and the compression unit(s) and optionally stayplates can fill the entire through opening of each frame. Hence the fastening elements are sealed off inside the opening in the partition and a sealing is provided from both sides of the partition while the space of the through openings are used efficiently.

[0019] The present invention is also related to the use of the transit in the opening of a partition of concrete or a partition comprising studs provided with a panel, and wherein the partition has a thickness of at least 80 mm. The use can include that the connection elements and the fastening elements are sealed off inside the partition by the sealing modules and the compression units. For example, the partition comprises panel in the form of metal sheets. Alternatively, the partition comprises panel in the form of sheets comprising plastic materials. For example, the partition comprises two panels facing each other and with insulation, such as mineral wool, glass wool or similar, between them. For example, the partition is a sandwich structure.

[0020] The present invention is also related to a method for providing a transit for passing at least one cable and / or at least one pipe through an opening in a partition, comprising the steps of inserting a frame member of a first frame into the opening in the partition from a first side thereof and bringing a clamping flange of the first frame to engage said first side of the partition, and inserting a frame member of a second frame into the opening in the partition from a second side thereof and bringing a clamping flange of the second frame to engage said second side of the partition, characterised by the steps of aligning a plurality of connection elements of the first frame with connection elements of the second frame, connecting the connection elements of the first frame with connection elements of the second frame by fastening elements, and operating the fastening elements and thereby displacing at least one of the first and second frames towards the other for clamping the clamping flanges of the first and second frames on opposite sides of the partition.

[0021] The method can further comprise the steps of arranging at least one sealing module and at least one compression unit in the first frame member, and arranging at least one sealing module and at least one compression unit in the second frame member. In addition the method can comprise the steps of compressing the sealing modules by means of the compression units and thereby seal off the connection elements and the fastening elements inside the partition. The method can comprise the steps of filling the entire cross section area of each of the through openings with sealing modules, compression units and optional stayplates. Further characteristics and advantages of the present invention will become apparent from the description of the embodiments below, the appended drawings and the dependent claims.

[0022] BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The invention will be described further below by way of embodiment examples and with reference to the enclosed drawings, in which:

[0024] Fig. l is a schematic perspective view of a transit for passing at least one cable or pipe through an opening in a partition according to one embodiment, wherein the transit is arranged in the partition and is provided with sealing modules, optional stayplates and a compression unit,

[0025] Fig. 2 is a schematic perspective view of a sealing module half for a transit according to one example,

[0026] Fig. 3 is a schematic perspective view of a frame of the transit according to one embodiment,

[0027] Fig. 4 is a schematic and partially sectional view of the first and second frames of the transit clamped to the partition,

[0028] Fig. 5 is a schematic and simplified sectional view of the transit according to one embodiment, wherein the first and second frames of the transit are clamped to the partition and cables are arranged through sealing modules of the transit,

[0029] Figs. 6 to 8 are schematic views of a fastening element for connecting and displacing a first frame with a second frame of the transit according to one embodiment, and

[0030] Fig. 9 is a schematic exploded perspective view of the frame and an optional sealing sheet of the transit according to one embodiment. DETAILED DESCRIPTION

[0031] With reference to Fig. 1 a transit 10 for passing at least one cable 11 and / or at least one pipe through a partition 12 is illustrated schematically according to one embodiment. The transit 10 is arranged for passing one or more cables 11 and / or pipes through a partition 12 in the form of a wall, a floor, a roof or a ceiling. For example, the transit 10 is arranged to be mounted in a partition 12 comprising concrete, such as a concrete wall or a concrete floor, or a partition 12 comprising studs provided with a panel. For example, the transit 10 is arranged for passing cables 11, 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. For example, the transit 10 is arranged for passing one or more cables 11 and / or pipes between a first area and a second area, wherein at least the first area is an area with high demands in respect of hygiene and / or low levels of particulates. Such areas may, e.g. be laboratories, cleanrooms, surgery rooms and similar facilities as well as facilities for sensitive equipment. The partition 12 separates the first area from the second area. For example, both of the first and second areas are areas with high demands in respect of hygiene and / or low levels of particulates. For example, both of the first and second areas are laboratories, cleanrooms, surgery rooms or facilities for sensitive equipment.

[0032] The transit 10 according to Fig. 1 is arranged for receiving one or more sealing modules 13, a compression unit 14 and optionally stayplates 15. The sealing modules 13 may be arranged in different sizes and a plurality of different sealing modules 13 may be arranged in different configurations, which is illustrated also with reference to Fig. 2. For example, the sealing modules 13, the compression unit 14 and the stayplates 15, if applicable, are of conventional type. For example, the sealing modules 13 are resilient and comprises two opposite sealing halves 16, wherein each module half 16 comprises a plurality of peelable sheets 17 placed in a semi-cylindrical groove 18 as illustrated in Fig. 3. Optionally, a suitable number of peelable sheets 17 are removed to adapt the sealing module 16 to the diameter of the cable or pipe, wherein the cable 11 or pipe is placed in the module half 16 and a sealing module 13 is formed by placing two module halves 16 on top of each other. For example, the compression unit 14 is a conventional wedge. For example, the compression unit 14 is operated by one or more compression screws 19. Sealing modules 13 not receiving a cable 11 or a pipe can be provided with a blind plug 20, which may be conventional.

[0033] The transit 10 comprises a frame 21 for receiving the sealing modules 13, the compression unit 14 and the optional stayplates 15. For example, the frame 21 is substantially rectangular. The frame 21 can, e.g. be made of metal or plastic materials. The frame 21 according to one embodiment is illustrated schematically in Fig. 3. As can be seen in Fig. 3 the frame 21 comprises a frame member 22 and a clamping flange 23 extending from the frame member 22. The frame member 22 is arranged with a through opening 24 for receiving the sealing modules 13, the compression unit 14 and optionally the stayplates 15. For example, the through opening 24 extends throughout the frame

[0034] 21. The through opening 24 has a cross section area, which e.g. is constant. Optionally, said cross section area 24 is rectangular and constant throughout the frame 21 both in size and shape, so that the through opening 24 is unobstructed and can be used in its entirety for sealing modules 13, compression unit(s) 14 and stayplates 15. leading cables and pipes The frame member 22 is arranged for insertion into an opening in the partition 12, which will be described further below.

[0035] The clamping flange 23 extends from the fame member 22 for engaging the partition 12, such as an outer face of the partition 12. The clamping flange 22 is arranged for fastening of the frame 21 to the partition 12 by clamping, which will be described more in detail below. For example, the clamping flange 23 extends perpendicular from the frame member 22. In the illustrated embodiment, the clamping flange 23 extends continuously around the entire circumference of the frame member

[0036] 22. Optionally, the clamping flange 23 is connected to one end of the frame member 22.

[0037] The frame 21 comprises connection elements 25. The connection elements 25 are arranged for connection of the frame 21 to another frame for clamping of the frames to opposite sides of the partition 12, which will be described below. The frame 21 comprises a plurality of connection elements 25, e.g. distributed around the frame member 22 in a suitable manner. For example, the connection elements 25 are evenly distributed around the circumference of the frame member 22. The connection elements 25 are, e.g. arranged in an end of the frame member 22 opposite the clamping flange 23. In the illustrated embodiment, the connection elements 25 are connected to the frame member 22 through a connection flange 26. Alternatively, the connection elements 25 are connected directly to the clamping flange 23. In the illustrated embodiment, the connection flange 26 is arranged at the end of the frame member 22. Alternatively, the connection flange 26 is arranged at another location along the frame member 22.

[0038] With reference to Fig. 4 a first frame 21a and a second frame 21b are arranged at the opening in the partition 12 and are connected to each other through fastening elements 27 connecting the connection elements 25 of the first and second frames 21a, 21b. The first and second frames 21a, 21b are clamped to the partition 12 by means of the fastening elements 27 pulling the first and second frames 21a, 21b toward each other, so that the flanges 23 are pressed onto the opposite faces of the partition 12. In Fig. 4, the first and second frames 21a, 21b and the fastening elements 27 are illustrated. In Fig. 5 the transit 10 according to a simplified embodiment is illustrated schematically, wherein the first and second frames 21a, 21b are mounted in the opening of the partition 12 by means of the fastening elements 27 and wherein sealing modules 13, compression units 14 and optional stayplates 15 are arranged in the first and second frames 21a, 21b. In Fig. 5 also cables 11 arranged through the sealing modules 13 are illustrated schematically. In Fig. 5, the sealing modules 13 are illustrated without the optional peelable sheets 17.

[0039] As illustrated in Figs. 4 and 5, the transit 10 comprises an axis A, the first frame 21a, the second frame 21b and the fastening elements 27 extending between the first and second frames 21a, 21b and connecting them. For example, the first and second frames 21a, 21b are similar or even identical. The frame members 22 of the first and second frames 21a, 21b are inserted in the through opening in the partition 12 in the axial direction. Hence, the frame members 22 are at least partially arranged inside the opening in the partition 12. The frame member 22 of each of the first and second frames 21a, 21b extend in the axial direction. Both of the first and second frame members 22 are arranged for receiving sealing modules 13 and compression units 14. Hence, the first frame 21a is arranged for receiving a first set of sealing modules 13 and one or more compression units 14 for sealing one end of the transit 10, wherein the second frame 21b is arranged for receiving another set of sealing modules 13 and one or more compression units 14 for sealing the other end of the transit 10 in the axial direction. Hence, the transit 10 is sealed in both ends. The axis A is perpendicular to a plane of the partition 12. For example, the axis A corresponds to a direction of the cable(s) 11 and or pipe(s) through the transit 10.

[0040] The frame member 22 extends in the axial direction, wherein the clamping flange 23 extends radially outward from the periphery of the frame member 22. The connection elements 25 extend in the axial direction. Optionally, the connection elements 25 are arranged radially outside the through opening 24 of the frame member 22. The connection elements 25 of the first and second frames 21a, 21b are aligned. Hence, each connection element 25 of the first frame 21a is aligned with a connection element 25 of the second frame 21b. Two aligned connection elements 25, one connection element 25 of the first frame 21a and one connection element 25 of the second frame 21b, form a pair of connection elements 25 to be connected with each other by the fastening element 27. For example, the connection elements 25 have a first end connected to the frame member 22 and a second end extending axially from the frame member 22. The connection elements 25 are elongated and extend in planes parallel to the frame member 22. For example, the connection elements 25 are formed with threads, such as external threads. Optionally, the connection elements 25 are threaded rods or tubes. Alternatively, the connection elements are tubes having internal threads.

[0041] In the illustrated embodiment, the connection elements 25 are connected to the frame member 22 through the connection flange 26. The connection flange 26 extend in a plane parallel to the clamping flange 23. The connection flange 26 is arranged with a gap to the clamping flange 23. Optionally, the connection flange 26 and the clamping flange 23 are arranged in opposite ends of the frame member 22. The connection flange 26 is smaller than the clamping flange 23, so that the connection flange can be inserted into the opening in the partition 12 while the clamping flange 23 engages the outer face of the partition 12. The connection flange 26 extends radially outward from the frame member 22. Hence, the cross section area of the entire through opening 24 of the frame member 22 is constant and unobstructed throughout the frame member 22. Similarly, the cross section area of the entire through opening of the entire frame 21a, 21b is constant and unobstructed throughout the frame 21a, 21b. The entire cross section of the through opening 24 can be used for leading cables or pipes, since the entire cross section area of the through opening 24 can be filled with sealing modules 13, compression units and stayplates without any obstructions for the cables 11 or pipes lead through the transit 10.

[0042] The fastening elements 27 connect the connection elements 25. Hence, each fastening element 27 connects an aligned pair of connection elements 25 to connect the first frame 21a with the second frame 21b. Hence, the fastening elements 27 are arranged between the frame members 22 of the first and second frames 21a, 21b. The fastening elements 27. For example, the fastening elements 27 extend in the axial direction of the transit. The fastening elements 27 are arranged inside the partition 12. For example, the fastening elements 27 are arranged completely inside the partition 12. The fastening elements 27 are operable to displace one or both of the first and second frames 21a, 21b toward each the other for clamping of the frames 21a, 21b to opposite sides of the partition 12. The fastening elements 27 are operable before mounting of the sealing modules 13 in the opening 24 of the frame members 22. After mounting of the sealing modules 13 and compression unit 14 in both of the frame members 22, the fastening elements 27 are sealed off from the first and second areas. Thus, after mounting of the sealing modules 134 and the compression units 14 in both the first and second frames 21a, 21b, the fastening elements 25 are completely sealed off from both sides of the partition 12. After mounting of the sealing modules 13, the fastening elements 27 are not accessible until the sealing modules 13 are removed from at least one of the first and second frames 21a, 21b. When the fastening elements 27 are operated, the first and second frames 21a, 21b are displaced in the axial direction, toward each other for clamping and away from each other for dismantling.

[0043] With reference to Figs. 6 to 8 the fastening element 27 is illustrated according to one embodiment. The fastening element 27 has an axis B, a first end and a second end. For example, the fastening element 27 is operable to rotate for displacing the first and / or second frames 21a, 21b. To facilitate rotation, the outer surface of the fastening element 27 is formed with sides 28, e.g. to be engaged by a tool. For example, the cross section of the fastening element is polygonal, such as rectangular, hexagonal or similar, wherein the fastening element 27 is operable to rotate by means of conventional tools. For example, the fastening element 27 is formed as a nut. In the illustrated embodiment, the fastening element 27 is formed with an axially extending first hole 29 extending from the first end, and an axially extending second hole 30 extending from the second end. In the illustrated embodiment, the first and second holes 29, 30 have a bottom and are not connected to each other. Alternatively, the first and second holes 29, 30 are connected to each other forming a through hole extending axially throughout the fastening element 27. The first and second holes 29, 30 are aligned in the axial direction. The first hole 29 is formed with a first thread 31, and the second hole 30 is formed with a second thread 32. The first thread 31 is arranged for engaging the thread of the connection element 25 of the first frame 21a, wherein the second thread 32 is arranged for engaging the thread of the connection element 25 of the second frame 21b. For example, the first and second threads 31, 32 are arranged in opposite rotational directions, so that the first and second frames 21a, 21b are displaced towards or away from each other when the fastening element 27 is rotated. Hence, rotation of the fastening element 27 in one direction brings the first and second frames toward each other for clamping thereof to the partition 12, wherein rotation in the opposite direction displaces the first and second frames 21a, 21b away from each other. Alternatively, the first and second threads 31, 32 are arranged in the same rotational direction, wherein the threads of the connection elements 25 of the first and second frames 21a, 21b are different to achieve the clamping function when the fastening element 27 is rotated. According to one embodiment, the fastening element 27 is a turnbuckle nut.

[0044] The partition 12 may be a wall, floor, roof or similar. According to one embodiment, the partition 12 is of concrete or comprises concrete or equivalent materials. Alternatively, the partition 12 comprises studs provided with panel (not illustrated). For example, the partition 12 has a thickness T of at least 80 mm or at least 100 mm. With reference to Fig. 9 the frame 21 and an optional sealing sheet 33 are illustrated schematically. The clamping flange 23 can be arranged to seal against the partition 12. However, to further improve the sealing properties of the transit 10, the sealing sheet 33 is arranged between the clamping flange 23 and the partition 12. For example, the sealing sheet 33 is attached to or is part of the clamping flange 23. For example, the clamping flange 23 comprises the sealing sheet 33. The sealing sheet 33 may be attached to the clamping flange 23 by an adhesive or similar. The sealing sheet 33 is, e.g. made of a different material than the frame 21, such as rubber, thermoplastic elastomer or other material with favourable sealing properties. The sealing sheet 33 has a through opening, e.g. corresponding to the through opening 24 of the frame member 22. For example, the sealing sheet 33 is arranged as a closed loop and extend continuously around the through opening. If the clamping flange 23 is of metal and the outer surface of the partition 12 is of metal, the clamping flange 23 can be welded to the partition 12 through a weld joint. A weld joint can be used instead of or in addition to the sealing sheet 33 to improve the sealing of the transit 10.

[0045] To mount the transit 10, the frame member 22 and the connection elements 25 of the first frame 21a are inserted into the opening of the partition 12 from a first side, of the partition 12 optionally with the sealing sheet 33 between the clamping flange 23 and the outer surface of the partition 12 around the opening therein. The frame member 22 and the connection elements 25 of the second frame 21b are inserted into the opening of the partition 12 from an opposite second side of the partition 12, optionally with the sealing sheet 33 between the clamping flange 23 and the outer surface of the partition 12 around the opening therein. The fastening elements 27 are brought through the opening 24 of the frame member 22 of at least one of the first and second frames 21a, 21b. For example, the fastening elements 27 are arranged between the frame member 22 of the first frame 21a, and the frame member of the second frame 21b. The fastening elements 27 are connected to the connection elements 25 of the first and second frames 21a, 21b. Then, the fastening elements 27 are operated, such as rotated, to tighten the clamping frames 23 of the first and second frames 21a, 21b towards the partition 12 for clamping of the first and second frames 21a, 21b to the partition 12, so that the first and second frames 21a, 21b are fastened to the partition without any screws penetrating the clamping flanges 23 or the optional sealing sheet 33 or any screws entering the partition 12 from any of the outer faces thereof.

Claims

CLAIMS1. A transit (10) for passing at least one cable (11) and / or at least one pipe through an opening in a partition (12), wherein the transit (10) comprises an axis (A), a first frame (21a), a second frame (21b) and operable fastening elements (27) for fastening the first frame (21a) to the second frame (21b), and wherein each of the first and second frames (21a, 21b) comprises an axially extending frame member (22) and a radially extending clamping flange (23), so that the clamping flanges (23) of the first and second frames (21a, 21b) can be clamped on opposite sides of the partition (12) by operating the fastening elements (27), characterised in that the first and second frames (21a, 21b) comprise a plurality of connection elements (25), wherein the connection elements (25) of the second frame (21b) are aligned with the connection elements (25) of the first frame (21a), and each of the fastening elements (27) connects one of the connection elements (25) of the first frame (21a) and the connection element (25) of the second frame (21b) aligned therewith and is operable for displacing at least one of the first and second frames (21a, 21b) towards the other for clamping the clamping flanges (23) of the first and second frames (21a, 21b) on opposite sides of the partition (12).

2. The transit of claim 1, wherein the clamping flange (23) is connected to one end of the frame member (22) and wherein the connection elements (25) are connected to the opposite end thereof.

3. The transit of claim 1 or 2, wherein each of the frames (21a, 21b) comprises a radially outward extending connection flange (26) and wherein the connection elements (25) are connected to the frame members (22) through the connection flanges (26).

4. The transit of any of the preceding claims, wherein the connection elements (25) are elongated and extend in planes parallel to and radially outside of the frame member (22) and wherein a cross section area of a through opening of the first and second frames (21a, 21b) for passing the at least one cable (11) or pipe is constant.

5. The transit of any of the preceding claims, wherein the connection elements (25) are formed with threads.

6. The transit of any of the preceding claims, wherein the connection elements (25) project from the frame member (22).

7. The transit of claim 1, wherein the connection elements (25) are threaded rods.

8. The transit of any of the preceding claims, wherein the fastening elements (27) are arranged between the frame members (22) of the first and second frames (21a, 21b).

9. The transit of any of the preceding claims, wherein the fastening elements (27) are formed with a first thread (31) and a second thread (32).

10. The transit of claim 9, wherein the first and second threads (31, 32) are arranged in opposite rotational directions.

11. The transit of claim 9 or 10, wherein each of the fastening elements (27) comprises an axis (B), a first end, an opposite second end, an axially extending first hole (29) extending from the first end, and an axially extending second hole (30) extending from the second end, wherein the first hole (29) is formed with the first thread (31), and wherein the second hole (30) is formed with the second thread (32).

12. The transit of claim 11, wherein the fastening element (27) is a turnbuckle nut.

13. The transit of any of the preceding claims, comprising a plurality of sealing modules (13) for receiving the cables (11) or pipes, and a plurality of compression units (14) for compressing the sealing modules (13), wherein at least one sealing module (13) and at least one compression unit (14) are arranged in the frame member (22) of the first frame (21a) and at least one sealing module (13) and at least one compression unit (14) are arranged in the frame member (22) of the second frame (21b).

14. Use of a transit (10) of any of the preceding claims in the opening of a partition (12) of concrete or a partition (12) comprising studs provided with a panel, and wherein the partition (12) has a thickness (T) of at least 80 mm.

15. The use of claim 14, wherein the connection elements (25) and the fastening elements (27) are sealed off inside the partition (12) by the sealing modules (13) and the compression units (14).

16. A method for providing a transit for passing at least one cable (11) and / or at least one pipe through an opening in a partition (12), comprising the steps of inserting a frame member (22) of a first frame (21a) into the opening in the partition (12) from a first side thereof and bringing a clamping flange (23) of the first frame (21a) to engage said first side of the partition (12), inserting a frame member (22) of a second frame (21b) into the opening in the partition (12) from a second side thereof and bringing a clamping flange (23) of the second frame (21b) to engage said second side of the partition (12), characterised by the steps of aligning a plurality of connection elements (25) of the first frame (21a) with connection elements (27) of the second frame (21b), connecting the connection elements (25) of the first frame (21a) with connection elements (25) of the second frame (21b) by fastening elements (27), and operating the fastening elements (27) and thereby displacing at least one of the first and second frames (21a, 21b) towards the other for clamping the clamping flanges (23) of the first and second frames (21a, 21b) on opposite sides of the partition (12).

17. The method of claim 16, further comprising the steps of arranging at least one sealing module (13) and at least one compression unit (14) in the frame member (22) of the first frame (21a), and arranging at least one sealing module (13) and at least one compression unit (14) in the frame member (22) of the second frame (21b).

18. The method of claim 17, further comprising the steps of compressing the sealing modules (13) by means of the compression units (14) and thereby seal off the connection elements (25) and the fastening elements (27) inside the partition (12).

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