Device for routing a speedpipe through a wall hole

Abstract

Arrangement comprising at least a device for passing at least one conductor through a wall bore that passes through a building wall, with an outer clamping body covering the wall bore on the outside of the building and resting against the building wall, which has a hole for passing the conductor, and an inner clamping body covering the wall bore on the inside of the building and resting against the building wall, through which the conductor can be passed. wherein both clamping bodies have means for clamping the conductor passing through them, characterized by that the line is at least one speedpipe (4), that a perforated tube (6) is articulated to the inside of the outer clamping body (3), which surrounds the speedpipe (4) in the wall bore at least over part of its length with radial spacing, that the outer clamping body (3) has a through-opening (25) through which a filling substance that is initially flowable, then expanding and hardening can be poured into the perforated tube (6), that the inner clamping body (8) has a tubular section (9) through which the speedpipe (4) can be passed and which can be inserted into the wall bore, and a frame-like section (14) extending at an angle of 90° to it in the unloaded state, which can be pressed tightly against the building wall (1), wherein the two sections (9, 14) are integrally connected to each other by flexible webs (17), that the tubular section (9) continues outside the wall bore in a U-shape (11) cross-section, so that the speedpipe (4) can exit upwards, that the frame-like section (14) has spaced-apart pairs of webs (12, 13) between which the speedpipe (4) can be passed, and that the clamping bodies (3, 8) can be pressed tightly against the building wall both when the wall bore leads horizontally and at an angle to it through the building wall (1).

Description

[0001] The invention relates to a device for passing a cable through a wall bore leading through a building wall, comprising an outer clamping body covering the wall bore on the outside of the building and resting against the building wall, which has a hole for passing the cable, and an inner clamping body covering the wall bore on the inside of the building and resting against the building wall, through which the cable can also be passed, wherein both clamping bodies have means for clamping the cable passed through them.

[0002] From EP 2 410 222 A1, a device for fastening and sealing a conduit leading through a wall opening in a building wall is known, wherein the conduit is a conduit that accommodates, for example, a water pipe, a gas pipe, or a telecommunications line. This conduit requires a wall bore or core drilling with a diameter of at least 40 mm, the creation of which is associated with considerable effort.

[0003] In contrast, the present invention provides that a speedpipe should be passed through the wall bore without such a larger conduit or protective tube, wherein the speedpipe usually has a diameter of 7 mm, 10 mm or 12 mm, so that the wall bore only needs to have a diameter of about 20 to 25 mm.

[0004] When such a pipe is installed in a building, it must be mechanically fastened to the wall, and the space between the pipe and the wall must be sealed against the passage of water and, if possible, also gas. For this purpose, it is known from EP 2 410 222 A1 to surround the conduit with a perforated pipe of larger diameter. According to EP 2 410 222 A1, a filling substance that is initially flowable, then foams up and hardens, is poured into this perforated pipe. This substance emerges from a multitude of small holes distributed around the circumference of the surrounding pipe and fills cavities in the wall opening, thus sealing the space within the wall opening.

[0005] Since the wall bore for inserting a speedpipe according to the present invention has only a relatively small diameter, it can be made using a hand drill, which reduces the amount of work involved. However, this manual process means that the bore's path through the wall can vary. The bore can run horizontally or at a varying angle to the horizontal, the latter always being the case if the building has no basement, in which case the bore runs diagonally upwards from the outside inwards.

[0006] Previous devices for routing a cable through a building wall required the provision of clamping bodies adapted to the different course of the wall bore, which could be pressed tightly against the wall.

[0007] DE 10 2010 026 082 A1 is designed to guide at least one conduit, such as a cable, cable conduit, gas line, or the like, through a wall bore. The device has an outer and an inner clamping element, both of which have an identical design. These clamping elements each consist of three main components: a channel structure, a mounting plate, and a clamping mechanism, which in turn comprises a tension rod and a quick-release fastener. The channel structure has two passageways that are integrally connected: a conduit channel through which the conduit passes and a tension rod channel in which the tension rod is located. The channel structure is inserted into the wall bore and is designed to prevent the ingress of moisture and water between the wall and the channel structure.This is achieved by sealing sections integrated into the perimeter wall of the duct structure. Tightening the tension rod causes these sections to expand radially outwards, pressing against the inner wall of the wall bore. The mounting plate is attached to the duct structure by two pivot pins engaging with sockets in the duct structure, allowing the mounting plate to pivot relative to the duct structure. This enables both mounting plates to be pressed against the wall, both inside and out.

[0008] DE 10 2009 057 900 A1 discloses a wall penetration for routing cables, cable protection pipes, or other conduits through a building wall, in which an outer part comprises a base body and a removable cover, whereby the base body and the cover define a cavity. A pipe stub angled relative to the longitudinal axis of the base body is inserted into the wall penetration opening, with a socket-like connecting element for a gas-tight connection of at least two cable, pipe, or conduit ends being arranged in the cavity. The connecting element is longitudinally split to facilitate easy installation of the wall penetration.

[0009] EP 2 645 507 A1 discloses a cable gland for fastening in a building wall, with a bushing and a sheath provided on the outside of it, which is filled with a filling substance arranged between the bushing and the jamb of the passage opening during the installation of the cable gland.

[0010] DE 101 30 707 B4 discloses a device for passing cables, conduits, and the like through a building wall, comprising a dowel tube containing an expansion dowel section that is inserted into the core hole, a drive tube inserted into the dowel tube that expands the expansion dowel section and thereby presses it firmly against the wall of the core hole, and a sealing plug made of a rubber-elastic material with through-holes for the cables, conduits, or the like. A screw cap is screwed onto the end section of the tubular portion of the dowel tube, pressing the sealing plug against the rear wall edge of the drive tube.

[0011] The present invention is based on the objective of providing a device of the type under consideration which can be used both for fastening and sealing a horizontal wall bore as well as an obliquely running wall bore.

[0012] This problem is solved by using an inner clamping element made of a thermoplastic material that, at defined points, is preferably thinner and deformable, allowing the inner clamping element to be pressed tightly against the building wall, whether the bore is horizontal or angled. ABS is preferably used as a suitable material, as it is essentially rigid at greater wall thicknesses but deformable or bendable at smaller thicknesses. It is important that the inner clamping element, regardless of the bore's orientation through the wall, can be pressed tightly and firmly against the wall surface with a circumferential edge section.

[0013] Furthermore, according to the invention, a perforated tube is connected to the inside of the outer clamping body. This tube surrounds the speedpipe in the bore at least over a portion of its length at a radial distance and is preferably made of the same material as the inner clamping body. The perforated tube is pivotally connected to the outer clamping body so that, when the clamping body is in close contact with the wall at its circumferential edge section, it can be aligned with the respective course of the wall bore. The perforated tube can be closed in its lower region when installed and have small holes or slots in the regions above it, so that the sealing substance to be poured into the perforated tube cannot run down the wall bore without effect.

[0014] The invention further provides that the inner clamping body has a tubular section through which the speedpipe can be passed, and that this tubular section can be inserted into the wall bore. Advantageously, the tubular section is designed like a dowel with outwardly projecting wings, allowing it to be clamped into the bore.

[0015] The inner clamping body also has a preferably frame-like section extending at an angle of approximately 90° to the tubular section when unloaded, with a circumferential rim that is to be pressed tightly against the building wall. The tubular section and the frame-like section are integrally connected to each other by the aforementioned flexible or deformable webs or wall sections. These flexible webs are made of the same material as the rest of the inner clamping body, but have such a thin wall thickness that the angle between the tubular section and the frame-like section can be changed. These two sections are essentially rigid due to their greater wall thickness.

[0016] The tubular section continues in a U-shape outside the bore, with the opening facing the frame-like section, allowing the speedpipe to be bent upwards towards the frame-like section. The frame-like section has two pairs of webs spaced so that the speedpipe can be guided between them and clamped to the upper pair of webs. For this purpose, the upper pair of webs can have two spring arms with opposing lugs behind which the speedpipe can be clamped.

[0017] The outer clamping body, which preferably has essentially the shape of a plate whose edge is pressed tightly against the building wall, has in a preferred embodiment a central hole for passing the speedpipe through and on the outside, on both sides of the hole, lateral guides for a plate, preferably made of metal, which can be slid onto the speedpipe with a correspondingly shaped recess in order to fix it to the outer clamping body.

[0018] The initially flowable, then foaming and finally hardening filling substance is poured into the perforated tube from the outside through a through-opening in the outer clamping body, for which a small pipe nozzle may be provided.

[0019] Further details of the invention will become apparent from the following description of a preferred embodiment and from the drawings. The drawings show: Fig. 1 an embodiment of the device with a speedpipe passing horizontally through a wall made of hollow blocks, indicated; Fig. 2 the device in a different perspective view; Fig. 3 another perspective view of the same device; Fig. 4 the inner clamping body to be arranged on the inside of the building; Fig. 5 the outer clamping body to be arranged on the outside of the building in an interior view; Fig. 6 the outer clamping body in an external view; Fig. 7 a combination of a horizontal and an oblique wall penetration of the device according to the invention.

[0020] Fig. Figure 1 shows a suggested wall 1 made of schematically represented hollow blocks. An external clamping element 3 rests against the exterior 2 of the building, through which a speedpipe 4 is inserted into the interior 5 of the building. Fiber optic cables will be blown into the initially empty speedpipe 4 at a later time.

[0021] The speedpipe 4 is guided through a perforated tube 6 with small holes, which is pivotally attached to an internally mounted frame part 7 of the outer clamping body 3, so that the perforated tube 6 is shown in the illustration of the Fig. 1 can be swivelled upwards if the speedpipe 4 is not - as in Fig. 1 - not horizontally, but obliquely upwards through the wall 1. The perforated tube 6 surrounds the speedpipe 4 at a radial distance, whereby a filler substance, initially flowable, then foaming and hardening, is injected into the space between the speedpipe 4 and the perforated tube 6 from the outside of the outer clamping body. This filler substance emerges from the holes and fills the space between the wall bore (not shown) and the perforated tube 6. The perforated tube 6 narrows at its free end, so that the filler substance cannot escape there to any significant extent.

[0022] The speedpipe 4 extends to an inner clamping body 8, which has a tubular section 9 that is inserted into the wall bore from the inside of the building wall 1. Wings 10 project from the outside of the tubular section 9, allowing the tubular section 9 to be clamped into the wall bore like a dowel.

[0023] The speedpipe 4 is guided through the tubular section 9 to a subsequent channel-shaped section 11, from which the speedpipe 4 exits upwards, maintaining a minimum bending radius, to be received between two pairs of webs 12, 13 that project from a frame-like section 14 of the inner clamping part 8. The speedpipe 4 is clamped in the upper pair of webs 13 behind the facing lugs 15 of the webs 13, which act as spring arms.

[0024] The frame-like section 14 rests firmly against the building wall with its edge 16 in the installation position and seals the wall bore.

[0025] The tubular section 9 with the subsequent U-shaped cross-sectional extension 11 is essentially rigid due to its wall thickness, as is the frame-shaped section 14. These two largely rigid sections of the inner clamping body 8 are connected to each other by connecting webs (at 17), whereby this connection is deformable or bendable due to the reduced wall thickness. As a result, the angle of 90° between the tubular section 9 and the frame-shaped section 14, which exists in the unloaded state and with a horizontal wall penetration, can be increased if the wall bore runs obliquely upwards towards the inside of the building, as shown in Fig. 7 is indicated by the angle α. Fig. Figure 7 also shows that a corresponding angle can be set on the outer clamping body 3 by means of the swiveling attachment of the perforated tube 6.

[0026] As the Fig. 2 and Fig.As shown in Figure 5, a frame-shaped holder 7 or 21 for the perforated tube 6 is formed on the inside of the essentially cup-shaped outer clamping body 3, in which the perforated tube 6 is pivotably attached by means of pin-shaped projections 18. The speedpipe passes through a central hole 19 through the outer clamping body 3 and into the perforated tube 6. The outer clamping body 3 rests close to the building wall with its circumferential edge 20.

[0027] In addition to the hole 19, through which the speedpipe 4 is guided, there are two lateral guides 22 for a metal plate 23, which is pushed firmly onto the speedpipe 4 with a cutout 24 to fix the speedpipe to the outer clamping body 3.

[0028] Below the hole 19 and the metal plate 23, a small pipe stub 25 is formed, the opening of which leads through the clamping body 3 and into the interior of the perforated tube 6. The foaming and then hardening sealing substance is poured into the perforated tube through this pipe stub 25, sealing the wall bore.

[0029] Due to the deformability of the inner clamping body 8 and the articulated connection of the perforated tube 6 to the outer clamping body 3, the device is suitable for fastening and sealing a speedpipe in a wall bore leading through a wall at any angle.

Claims

[1] Arrangement comprising at least a device for passing at least one conductor through a wall bore which passes through a building wall, with an outer clamping body covering the wall bore on the outside of the building and resting against the building wall, which has a hole for passing the conductor, and an inner clamping body covering the wall bore on the inside of the building and resting against the building wall, through which the conductor can be passed, wherein both clamping bodies have means for clamping the conductor passing through them, characterized by , that the line is at least one speedpipe (4), that a perforated tube (6) is articulated to the inside of the outer clamping body (3), which surrounds the speedpipe (4) in the wall bore at least over part of its length with radial spacing, that the outer clamping body (3) has a through-opening (25) through which a filling substance that is initially flowable, then expanding and hardening can be poured into the perforated tube (6), that the inner clamping body (8) has a tubular section (9) through which the speedpipe (4) can be passed and which can be inserted into the wall bore, and a frame-like section (14) extending at an angle of 90° to it in the unloaded state, which can be pressed tightly against the building wall (1), wherein the two sections (9, 14) are integrally connected to each other by flexible webs (17), that the tubular section (9) continues outside the wall bore in a U-shape (11) cross-section, so that the speedpipe (4) can exit upwards, that the frame-like section (14) has spaced-apart pairs of webs (12, 13) between which the speedpipe (4) can be passed, and that the clamping bodies (3, 8) can be pressed tightly against the building wall both when the wall bore leads horizontally and at an angle to it through the building wall (1). [2] Arrangement according to claim 1, characterized by , the inner clamping body (8) consists of a thermoplastic material such as ABS, which is deformable or bendable with a thin wall thickness. [3] Arrangement according to one of claims 1 or 2, characterized by , that the tubular section (9) is designed in the manner of a dowel with outwardly projecting wings (10), which allows it to be inserted into the wall bore in a clamping manner. [4] Arrangement according to any one of claims 1 to 3, characterized by , that a pair of bridges (13) has two spring arms with mutually facing noses (15) behind which the speedpipe (4) can be clamped. [5] Arrangement according to any one of claims 1 to 4, characterized by, that the outer clamping body (3) has two lateral guides (22) on the outside for a plate (23) preferably made of metal, with which the speedpipe (4) passing through it can be fixed. [6] Arrangement according to any one of claims 1 to 5, characterized by , that the perforated tube (6) has no holes in its lower area when installed. [7] Arrangement according to any one of claims 1 to 6, characterized by , that the outer clamping body (3) and the perforated tube (6) are also made of a thermoplastic material such as ABS.

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