WALL AND PIPE PENETRATION FOR A PIPE ON THIS WALL

Description

Technical area

[0001] The invention relates to a wall and a pipe duct for a pipe on a wall, in particular an external wall, with a plastic body, which plastic body has a pipe socket for the passage of the pipe and a circumferential flange on the pipe socket, and with a flexible sleeve which is firmly connected to the plastic body and projects laterally away from it. State of the art

[0002] To seal the pipe transition into a wall or floor against liquids and moisture, a pipe penetration is known (EP0300963B1). This pipe penetration encloses the pipe with a pipe socket and also connects it to the wall and / or floor with a liquid-tight foil sleeve. Such pipe penetrations are used for drainage and are not used on walls, as they cannot withstand adverse weather conditions.

[0003] DE202018001460U1 discloses a facade composite with an opening through which a load-bearing element is anchored in a load-bearing wall. During the production of the facade composite, a cylindrical hollow body made of reinforcing mesh is inserted into the opening up to a folded edge, folded over at this folded edge, and glued. A pipe socket is then inserted into the opening and glued to the cylindrical hollow body. The production of such a facade composite is comparatively complex.

[0004] DE19544957A1 and WO2019 / 211467A1 disclose sleeves that can be pushed onto a pipe and attached to a wall. Description of the invention

[0005] The invention therefore has the object of creating a pipe penetration that can be used stably on an external wall.

[0006] The invention solves the problem by the features of claim 1.

[0007] If the sleeve is made of a mesh-like reinforcing mesh, the pipe penetration can also be securely installed on an exterior wall, as the flexibility and high tensile strength of the reinforcing mesh ensure a particularly stable connection to the exterior wall. In particular, compared to a foil sleeve, the sleeve's expansion can be kept low, preventing cracks in the exterior wall and thus reducing the risk of moisture and liquids penetrating the wall. This creates a stable pipe penetration that can withstand adverse environmental influences, such as those found on an exterior wall.

[0008] A fiberglass mesh, polyester mesh, etc., is possible as a reinforcing mesh in mesh form. The reinforcing mesh can be coated with a plastic finish. The plastic body is preferably made of PVC, although PP is also conceivable.

[0009] Preferably, the pipe socket can have an internal seal, in particular a lip seal, in order to additionally enable a stable, liquid-tight seal with the pipe to be passed through.

[0010] By slanting the longitudinal axis of the pipe socket to the transverse axis through the flange at an angle of α < 90 degrees, installation of the pipe socket can be made easier – especially because pipes for water drainage usually penetrate the exterior wall at an angle. Therefore, there is no need to tilt the pipe socket relative to the usually vertical exterior wall in order to insert the pipe at an angle or to accommodate it in the installation position.

[0011] In particular, if this angle α is in the range of 75 to less than 90 degrees, essentially any standardized inclination of the installed pipes can be accommodated by the pipe socket. 87 degrees may prove particularly suitable in this regard.

[0012] The design of the pipe penetration can be further simplified if the reinforcement mesh is welded to the flange. Preferably, the reinforcement mesh is welded to the flange at its flange face.

[0013] The strength of the welded joint can be further improved if the flange has a connection area with the welded reinforcement fabric, wherein the surface in this connection area has a higher average roughness compared to an adjacent surface of the pipe penetration, in particular the flange. Such a surface in the connection area can be created by roughening, for example, with quartz sand, etc.

[0014] It is also conceivable for the reinforcement mesh to be embedded in the plastic body. This can also significantly strengthen the bond between the reinforcement mesh and the plastic body, ensuring increased stability even in the most extreme weather conditions.

[0015] Installation, and especially embedding the pipe penetration into a wall coating, can be further facilitated if one end of the pipe socket protrudes beyond the flange on the front side of the pipe penetration, thus forming a plastering edge. Furthermore, the plastering edge makes it easy to check the position of the pipe penetration on the wall—which can also facilitate handling of the pipe penetration.

[0016] By attaching the reinforcement mesh in the connection area of ​​the pipe end with the flange embedded in the plastic body, the pipe penetration can be firmly embedded in a wall coating up to the plaster edge.

[0017] Preferably, the reinforcing mesh runs over the flange on the front side of the pipe penetration to facilitate embedding the pipe penetration in a wall coating.

[0018] The handling of the pipe penetration is further facilitated if the flange has a flange thickness of 2 to 10 mm (millimeters). This is even more so if the flange has a flange width of 25 to 35 mm. The flange width is preferably 30 mm, which can provide sufficient connection surface for the reinforcement mesh, for example.

[0019] It can also be advantageous with regard to handling, for example during installation, if the pipe socket has a length of up to 50 mm. For the pipe penetration's versatility, it may already prove sufficient if the pipe socket has an inner diameter designed to accommodate a pipe with a nominal diameter of at least DN 50, in particular at least DN 100.

[0020] For example, the pipe penetration can be placed more easily on an external wall if the flange front and the plastering edge are in normal alignment.

[0021] It may be sufficient to clean the pipe penetration if the pipe end is within a range of 4 to 9 mm (millimeters) of the flange. For example, 7 mm may provide optimum handling.

[0022] Preferably, the projection of the pipe end in millimeters together with the flange thickness in millimeters is in the range of 5 to 11 mm, in particular either 6 mm or 9 mm, which can ensure easy handling of the pipe penetration when plastering a wide variety of coating materials.

[0023] The pipe penetration is preferably used on a wall, in particular an exterior wall, with an external coating compound. In particular, the reinforcing mesh of the pipe penetration is embedded in the coating compound, which is in particular a plaster and / or filler compound.

[0024] In addition, the wall can have a pipe for draining a roof, especially a flat roof. According to the invention, the pipe penetrating the pipe penetration ensures a particularly moisture- and liquid-tight seal of the outer wall in the area of ​​the pipe opening. Short description of the drawings

[0025] The figures illustrate the subject matter of the invention in more detail using an exemplary embodiment. Fig. 1 a sectional view of a pipe penetration, Fig. 2 a top view of the pipe penetration according to Fig. 1 and Fig. 3 a side view of a wall with the pipe penetration according to the Figures 1 and 2 . Ways to implement the invention

[0026] After Fig. 3A wall of a building (not shown in detail) is shown, designed as an exterior wall 1, on which an external coating compound 2 is provided. A pipe 3 leads through this exterior wall 1 to drain a flat roof 4, which has thermal insulation 4a.

[0027] The pipe 3 protrudes from the exterior wall 1 on the outside of the building (not shown in detail). To prevent a gap between the exterior wall 1 and the pipe 3, a pipe penetration 5 is provided, with its front side 5a facing the outside of the exterior wall 1. The pipe penetration 5 seals the exterior wall 1 against the penetration of moisture and / or water.

[0028] These in the Figures 1 and 2 The pipe bushing 5 shown in more detail has a plastic body 6 made of PVC and a sleeve 7. The plastic body 6 has a pipe socket 8 and a flange 9 surrounding the pipe socket 8. The pipe 3 leads through the pipe socket 8, as in Fig. 1can be seen. The sleeve 7 is firmly connected to the plastic body 6 and protrudes laterally from this plastic body 6.

[0029] The sleeve 7 is flexible. This is achieved by the invention in that the sleeve 7 is formed from a reinforcing fabric 17 in grid form, namely glass fiber mesh, as shown in the Fig. 2 can be seen in detail. This allows the pipe penetration 5 to be securely embedded in the coating compound 2, namely a plaster compound 2a, of the exterior wall 1. Weather-related adversities thus do not endanger the moisture- and liquid-tight seal between the pipe penetration 5 and the exterior wall 1.

[0030] An inner seal 10 ensures a stable and tight seal between pipe 3 and plastic body 6. This inner seal 10 is designed as a lip seal 10a, which is positively inserted into an inner recess 11 of the pipe socket 8 and is preferably located in the area of ​​the second pipe end 8b.

[0031] The second pipe end 8b projects beyond the flange back 9b by several times the projection 12 of the pipe end 8a.

[0032] Pipe 3, which runs through the outer wall 1 at an incline of 3 degrees according to the standard, is accommodated coaxially by the pipe penetration 5 without any risk of jamming. For this purpose, the longitudinal axis L of the pipe socket 8 is inclined to the transverse axis Q through the flange 9 at an angle α < 90 degrees, namely by exactly 87 degrees. The angle α therefore lies in the range from 75 to less than 90 degrees.

[0033] As in the Fig. 1As can be seen, the reinforcing mesh 17 is embedded in the connection area 5b of the pipe end 8a of the pipe socket 8 with the flange 9 in the plastic body 6. For this purpose, one end 17a of the reinforcing mesh 17 is provided within the plastic body 6.

[0034] Additionally or alternatively, the reinforcement mesh 17 is welded to the flange 9, as shown in Fig. 2 The welding can be achieved, for example, by melting the flange 9 with the possible addition of a filler material, such as a polymer, preferably the material of which the plastic body is made. For example, thermal welding may be suitable for this purpose.

[0035] During welding, it may also be helpful if the reinforcing mesh 17 is coated with a plastic finish. Preferably, this plastic finish and the plastic body 6 are made of the same polymer, which facilitates welding.

[0036] For this purpose, the flange 9 has a connection area 18 with the welded reinforcing fabric 17 on the front side 5a of the pipe penetration 5, or thus on its flange front 5a. This connection area 18 extends over the entire flange front 9a, although a partial area thereof is also conceivable. The surface Ov of the flange 9 in this connection area 18 is roughened, which ensures a stable, material-locking connection with the reinforcing fabric 17. This roughening, which can be carried out, for example, by sand / shot blasting, perforation, etc., is recognizable in that the surface Ov in this connection area 18 is rougher and thus has a higher average roughness Ra than an adjoining surface O of the flange 9.

[0037] In addition, the Fig. 1It can be seen that the pipe socket 8 protrudes from the flange 9 on the front side 5a of the pipe penetration 5 - namely with one pipe end 8a of two pipe ends 8a, 8b. This pipe end 8a forms a plastering edge 13 through this projection 12, as shown in the Fig. 3 The plaster compound 2a is flush with the pipe end 8a. The pipe end 8a is thus located on the front side 5a of the pipe duct 5. The pipe end 8a is visible on the wall.

[0038] The flange front 9a and the plastering edge 13 are positioned normally on top of each other, which ensures easy processing of the pipe penetration 5 on the outer wall 1.

[0039] The overhang 12 of the plastering edge 13 is preferably 9 mm or 6 mm less than the flange thickness d in millimeters.

[0040] In addition, the reinforcing mesh 17 runs over the flange 9 on the front side 5a of the pipe penetration 5, which also ensures the adhesion of a coating compound 2 in the area of ​​the flange 9.

[0041] Preferably, the flange 9 has a flange thickness of 2 to 10 mm and a flange width b of 30 mm. The pipe socket 8 has a length l of 37 mm, with the pipe end 8a of the pipe socket 8 projecting seven millimeters beyond the flange 9. With a flange thickness of 2 mm, the second pipe end 8b of the pipe socket 8 therefore projects 28 mm beyond the flange back 9b.

[0042] The pipe socket 8 with its inner diameter di is designed for a pipe 3 with a nominal diameter of DN 100.

Claims

1. Pipe feedthrough for insertion in a wall, for a pipe (3) on this wall, more particularly an outer wall (1), having a plastic body (6), which plastic body (6) has a pipe socket (8) for the pipe (3) to pass through and also a peripheral flange (9) on the pipe socket (8), and having a flexible sleeve (7) which is firmly connected to the plastic body (6) and projects laterally away therefrom, characterized in that the sleeve (7) is formed in the shape of a grid by a reinforcing fabric (17).

2. Pipe feedthrough according to claim 1, characterized in that the pipe socket (8) has an internal seal (10), more particularly a lip seal (10a).

3. Pipe feedthrough according to claim 1 or 2, characterized in that the longitudinal axis (L) of the pipe socket (8) is inclined at an angle (α) <90 degrees to the transverse axis (Q) through the flange (9).

4. Pipe feedthrough according to claim 3, characterized in that the angle (α) is in the range from 75 to less than 90 degrees, more particularly 87 degrees.

5. Pipe feedthrough according to one of claims 1 to 4, characterized in that the reinforcing fabric (17) is welded to the flange (9), more particularly on the flange front (9a) thereof.

6. Pipe feedthrough according to claim 5, characterized in that the flange (9) has a connecting region (18) with the welded reinforcing fabric (17), wherein the surface (Ov) in this connecting region (18) has a higher mean roughness (Ra) in comparison with an adjoining surface (O) of the pipe feedthrough (5), more particularly of the flange (9).

7. Pipe feedthrough according to one of claims 1 to 6, characterized in that the reinforcing fabric (17) is embedded in the plastic body (6).

8. Pipe feedthrough according to one of claims 1 to 7, characterized in that, on the front side (5a) of the pipe feedthrough (5), one pipe end (8a) of the pipe socket (8) projects beyond the flange (9) and thus forms a plastering edge (13).

9. Pipe feedthrough according to claim 8, characterized in that the reinforcing fabric (17) is attached in the connecting region (5b) of the pipe end (8a) with the flange (9) embedded in the plastic body (6).

10. Pipe feedthrough according to claim 8 or 9, characterized in that the flange front (5a) and plastering edge (13) are disposed normally to one another.

11. Pipe feedthrough according to claim 8, 9 or 10, characterized in that the pipe end (8a) projects beyond the flange (9) in the range from 4 to 9 mm, more particularly 7 mm.

12. Pipe feedthrough according to claim 8, 9, 10 or 11, characterized in that the projection (12) of the pipe end (8a) in millimeters together with the flange thickness (d) in millimeters is in the range from 5 to 11 mm, more particularly either 6 mm or 9 mm.

13. Pipe feedthrough according to one of claims 1 to 12, characterized in that the reinforcing fabric (17) extends over the flange (9) on the front side (5a) of the pipe feedthrough (5).

14. Pipe feedthrough according to one of claims 1 to 13, characterized in that the flange (9) has a flange thickness (d) of 2 to 10 mm, more particularly 2 mm, and / or a flange width (b) of 25 to 35 mm, more particularly 30 mm.

15. Pipe feedthrough according to one of claims 1 to 14, characterized in that the pipe socket (8) has a length (l) of up to 50 mm, more particularly 37 mm, and / or an internal diameter (di) which is designed for the passage of a pipe having a nominal width of at least DN 50, more particularly DN 100.

16. Wall, more particularly an external wall (1), having an external coating composition (2), more particularly a plaster composition (2a) and / or filler composition, and having a pipe feedthrough (5) according to one of claims 1 to 15, wherein the reinforcing fabric (17) of the pipe feedthrough (5) is embedded in the coating composition (2).

17. Wall according to claim 16, characterized in that the wall has a pipe (3) for draining a roof, more particularly a flat roof (4), and in that the pipe (3) passes through the pipe feedthrough (5).