System for sealing a drilled hole, and drilled-hole sealing
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-08-13
Smart Images
Figure EP2026052436_13082026_PF_FP_ABST
Abstract
Description
[0001] MEPA - Pauli und Menden GmbH January 29, 2026 Rolandsecker Weg 37 Be / Hü (2026002509) 53619 Rheinbreitbach Q24518WO10
[0002] System for sealing a borehole as well as borehole sealing
[0003] Description
[0004] The invention relates to a system for sealing a borehole, particularly in a damp environment, comprising a fastening element with a shaft for placement in the borehole and a deformable sealing element for placement on the borehole. The invention further relates to a borehole seal and a method for sealing a borehole.
[0005] Systems of the type mentioned above are used, for example, to seal boreholes, particularly in damp rooms. For instance, bathtubs or showers are installed using tub support systems, which are securely and structurally connected to the building structure by at least one fastener. Sanitary fittings typically use cement- or plastic-based sealing slurries as a sealant. These slurries are penetrated by the screwing of the support systems in the area of the boreholes, allowing moisture to enter the building structure.
[0006] For example, EP 4 124769 A1 discloses a borehole seal for damp rooms comprising a disc made of at least partially plastically deformable material, with a through-hole for inserting a screw and an adhesive-coated side. A disadvantage is the structure created by the disc at the height of the surface surrounding the borehole.
[0007] The invention is based on the objective of providing a system for sealing a borehole that enables reliable sealing of a borehole in a quick and easy manner.
[0008] The problem is solved by a system for sealing a borehole, especially in a damp environment. According to the invention, the system comprises a fastening element with a shaft for placement in the borehole and a deformable sealing element for placement on the borehole. The system also includes a penetration tool for creating an opening in the sealing element for the fastening element.
[0009] A borehole sealing system is a set of several components or elements that work together to seal the borehole. The system's components can be used for preparing and / or directly sealing the borehole. The system can be used to seal boreholes in damp environments, such as bathrooms, saunas, or kitchens. The system can be easily handled and transported by a single installer, for example, as an assembly kit, for use in damp environments.
[0010] A fastener is a component designed to connect two or more components, for example mechanically, or to fix one component to another. The connection can be permanent or detachable. The fastener has at least one shank. Furthermore, the fastener may have a head connected to the shank. The shank may be located on the underside of the head. The shank and the head may be arranged coaxially with a longitudinal axis of the fastener. The shank can be understood as a section of the fastener extending along its longitudinal axis from the underside of the head to an end face or a tip. For example, the fastener may be designed as a screw or a threaded stud.It is also conceivable that the fastening element is designed as a bolt, nail or rivet.
[0011] A deformable sealing element is a component designed to prevent the entry and / or exit of fluids, particularly liquids or gases such as water or steam, into or from a borehole. In this context, "deformable" means that the sealing element is permanently deformed under force after exceeding a limit value, such as the elastic limit of the sealing element's material. The sealing element can be dimensioned such that at least one cross-section of the borehole, arranged transversely to the borehole axis, can be covered by the sealing element. The sealing element may have a central centering mark, such as a recess or a colored marking, to improve the accuracy of creating the opening with the penetration tool.
[0012] A penetration tool is a component designed to create an opening for inserting the fastener into the sealing element. The penetration tool can be handheld, meaning it can be grasped with one hand. Furthermore, the penetration tool can be a separate component from the fastener.
[0013] The penetration tool allows for the quick and easy creation of an opening in the sealing element. Using this opening and / or the penetration tool positioned within it, the sealing element can be reliably aligned with the borehole. Furthermore, the penetration tool prevents the sealing element from sticking to the fastener before the fastener is inserted into the borehole, for example, when creating an opening with the fastener. The interaction of the fastener, the sealing element, and the penetration tool provides a system for sealing the borehole, enabling a quick and easy, reliable seal. The deformability of the sealing element ensures that it is drawn into the borehole during the sealing process.The system can create a fluid-tight borehole seal, reducing the build-up of material on the surface surrounding the borehole.
[0014] The fastener can be a screw. It can have a thread, such as a wood thread, a plastic thread, a metric thread, or a high- or low-pitch thread. Furthermore, the fastener can be a non-scaffolding eyelet. For example, the fastener can be a steel screw. The thread can extend along the longitudinal axis of the fastener in a section of the shank. Alternatively or additionally, the thread can extend along the entire length of the shank.
[0015] The system may include a connecting element for securing the fastener in the borehole. The connecting element may be designed as a dowel. Furthermore, the connecting element may not be designed as a toggle bolt. The connecting element may, for example, be designed as a plastic dowel. A combination of fastener and connecting element may not, in particular, be designed as a nail anchor.
[0016] The fastener, penetration tool, and / or connecting element may be made of a corrosion-resistant or at least corrosion-inhibiting material. In particular, the fastener, penetration tool, and / or connecting element must not be processed with solvents or solvent-containing substances. Furthermore, the fastener, penetration tool, and / or connecting element must not contain acidic products, such as silicones cross-linked with acetic acid or acetate.
[0017] According to one possible embodiment, the deformable sealing element can have a flowable sealing layer and a protective layer arranged on top of the sealing layer. In this context, "flowable" means that the sealing layer has a low elastic limit, allowing for minimal irreversible deformation even under low force and / or low temperatures. The sealing layer can be made of a material with a low elastic limit and / or low gas permeability. For example, the sealing layer material can be a polymer selected from the group of synthetic rubbers. In particular, the sealing layer can be made of butyl rubber. By using butyl rubber for the sealing layer, an additional adhesive layer can be omitted.Furthermore, the use of butyl rubber enables particularly reliable distribution of the sealing element when sealing the borehole. The protective layer refers to a layer arranged on the sealing layer, designed to protect the sealing layer from environmental influences, such as substances, dirt particles, or the like, and to prevent the sealing layer from interacting with other components, elements, substances, or particles before sealing a borehole. The protective layer can also be designed to prevent the sealing layer from adhering to, for example, a user's finger when positioning the sealing element on a borehole. The protective layer can be made of a material with a higher elastic limit than the sealing layer. For example, the protective layer can be made of aluminum. In particular, the protective layer can have a carrier film that may be coated with aluminum.The carrier film can be made of a plastic material, especially polyethylene. Alternatively, the protective layer can be made of aluminum.
[0018] Following further development, the sealing element can be disc-shaped. The sealing element can have an outer diameter of 20 to 60 mm, 30 to 50 mm, or 35 to 45 mm. The sealing element can have a top surface and a bottom surface arranged at a distance from the top surface along a principal axis of the sealing element. "Disc-shaped" can be understood to mean that the sealing element has a thickness along the principal axis that is significantly less than its length and width. In particular, the sealing element can be rotationally symmetrical or axially symmetrical with respect to the principal axis. Furthermore, at least the bottom surface of the sealing element can be circular or elliptical perpendicular to the principal axis. Depending on the type and shape of the borehole to be sealed, the bottom surface of the sealing element can also be polygonal, particularly rectangular, perpendicular to the principal axis.The outer diameter of the sealing element can, for example, be the diameter of a circular underside or the major axis of an elliptical underside. The top surface of the sealing element can be parallel to the underside. Alternatively or additionally, the top surface can have a bulge in a direction away from the underside to provide more material in the region of the major axis that can be drawn into the borehole by the fastening element. The center mark can be located on the major axis. The sealing element can have a thickness along the major axis from the underside to the top surface of a value between 1 mm and 4 mm, 1.5 mm and 3.5 mm, or 2 mm and 3 mm. The protective layer can have a thickness of a value between 10 and 40 µm, 15 and 30 µm, or 15 and 25 µm.The design of the sealing element, particularly the selectable thickness and outer diameter, ensures that sufficient sealing element material, especially butyl rubber, is present to seal the borehole. Excess sealing element material can remain on the surface surrounding the borehole and may be pushed aside laterally, for example, by a component attached to the surface using the fastening element. This further reduces the buildup of the borehole sealant on the surface.
[0019] Furthermore, the protective layer can be formed on the top and / or bottom of the sealing element. Alternatively or additionally, a film can be provided to cover the bottom or top of the sealing element. The film can be designed to be removed from the sealing element before it is positioned in a borehole. The film can prevent the sealing layer from adhering undesirably, for example, to a surface surrounding the borehole.
[0020] In one possible embodiment, the penetration tool can have a dome and a holding section. The holding section can be designed to grip the penetration tool. Furthermore, the holding section can have a polygonal cross-section, for example, triangular, square, or pentagonal, arranged transversely to a longitudinal axis of the penetration tool. In addition, the holding section can have one or more side surfaces distributed circumferentially around the longitudinal axis. These side surfaces can have recesses or protrusions to improve handling. For example, the side surfaces of the holding section can be profiled. The holding section and the mandrel can be connected to each other at a connecting section. The penetration tool can be manufactured in one piece.The connecting section can have a larger diameter than the holding section and / or the dome. The dome can be understood as an end section of the penetration tool with a cross-section that decreases along a longitudinal axis. The dome can have a point and / or a rounded shape on an end face of the penetration tool.
[0021] The penetration tool can be made of a plastic material with low surface tension, particularly polypropylene. Alternatively, the penetration tool can be made of polyamide. The penetration tool can be fiber-reinforced. In particular, the penetration tool can be made of PA630GF, a polyamide with a 30% glass fiber content. Surface tension, also called surface energy, is a measure of the free energy present at the surface of a material at temperatures above absolute zero, and is also required to create a new surface of the material. In this context, low surface tension can be understood to mean that the plastic material has a surface energy that is at least lower than the surface energy of the sealing element and / or the fastening element material.The total surface energy consists of a polar and a dispersive component. Depending on the choice of material and / or additives, the plastic material of the penetration tool can have a surface energy between 20 and 50 mN / m, 25 and 45 mN / m, or 25 and 35 mN / m. For example, the penetration tool can be made of polypropylene or polyethylene. By using a plastic material with a low surface tension, or surface energy, for the penetration tool, unwanted adhesion of the sealing layer to the dome of the penetration tool during the creation of the opening in the sealing element can be prevented.
[0022] The system can have exactly one fastening element and exactly one sealing element. Alternatively, the system can have a plurality of the described fastening elements and a plurality of the described deformable sealing elements, where the number of fastening elements and sealing elements can be equal. The system can thus be used to seal a corresponding plurality of boreholes. The number of fastening elements and / or sealing elements can, for example, range from 2 to 100. The sealing elements can be arranged on a common film intended to cover the underside or the top side of the sealing element. The sealing elements can be individually removed from the film before being positioned at the corresponding boreholes. The film can prevent unwanted adhesion of the sealing layer.The penetration tool can be reusable and may be present in fewer numbers than the fasteners and sealing elements, in particular only one.
[0023] The invention further relates to a penetration tool for a system for sealing a borehole, which is designed to create an opening in the sealing element for arranging the fastening element. The penetration tool can be designed as described above.
[0024] The system can be used to carry out a process for sealing a borehole, particularly in a damp environment. The process comprises the following steps:
[0025] Creating an opening in the sealing element using a penetration tool,
[0026] - Arranging a deformable sealing element on the borehole,
[0027] - Arranging a fastener with a shaft in a borehole, wherein
[0028] - a mass fraction of the sealing element is drawn into the borehole by means of the shaft of the fastening element to fluidly seal a gap formed between the shaft of the fastening element and the borehole.
[0029] An opening is created in the sealing element using the penetration tool. The opening can be created centrally, particularly at the centering mark, on the sealing element. To create the opening, the penetration tool can be moved along the main axis of the sealing element so that the dome penetrates both the top and bottom surfaces of the sealing element. The protective layer, particularly on the top surface, may be undamaged before the opening is created using the penetration tool. "Undamaged" in this context means that the protective layer has no opening, slot, or similar defect. Raised or indented areas on the top surface of the protective layer are not considered damage to the protective layer.
[0030] The deformable sealing element can be positioned on the borehole before or after the opening has been created. The sealing element can be positioned, and in particular centered, on the borehole using the penetration tool. Alternatively, the sealing element can be positioned on the borehole using the penetration tool located in the opening, particularly by utilizing the dome of the penetration tool as a positioning aid. The connecting element can be positioned in the borehole upstream of the sealing element. Before positioning the sealing element on the borehole, any film that may be provided can be removed from the underside of the sealing element.
[0031] The fastener is inserted through the opening of the sealing element for placement in the borehole. At least the shank of the fastener, and in particular the thread formed on the shank, can be positioned in the borehole. If the fastener has a head, the head can be positioned on the surface surrounding the borehole.
[0032] As the shaft passes through the opening of the sealing element, the mass component, particularly the sealing layer, adheres to the shaft and / or a thread formed on the shaft, so that the mass component is drawn into the borehole by the shaft. Within the borehole, the mass component can be distributed in such a way that the gap formed between the shaft of the fastening element and the borehole is sealed fluid-tight. The mass component can be understood to be, in particular, a portion of the sealing layer.
[0033] The surface surrounding the borehole can be cleaned of dirt particles before the deformable sealing element is positioned. Dirt particles can include, for example, dirt, dust, oil, or grease. The surface can then be dried. Additionally, the fastener can be cleaned before being positioned in the borehole. Cleaning the surface before the sealing element is positioned ensures that the sealing element forms a reliable seal around the borehole. A component can be positioned on the surface surrounding the borehole before the fastener is positioned and secured to the surface with the fastener. The sealing element can be deformed by the fastener in such a way that a gap formed between the component and the surface is sealed fluid-tight by a further mass component of the sealing element.Fluid-tight means that the ingress and / or egress of fluids, especially liquids or gases such as water or steam, is prevented. The component to be fastened may be designed in such a way that it does not have its own sealing surface. In the installed state, different gaps may exist between the component and the surface. The joint can be any shaped gap between a connecting surface of the component and the surface. For example, a bathtub anchor, a bathtub strip, or a floor tab can be fastened to the surface using the fastening element. The borehole and the surface surrounding it can be located on a wall or floor of a wet room. In particular, the borehole can be located in an area of the wet room that is not visible, for example, under a bathtub or behind a partition wall.
[0034] The sealing element can be pressed against the surface surrounding the borehole. In particular, the sealing layer of the sealing element can be pressed against the surface by the protective layer. When the fastening element is screwed in, the protective layer can, for example, coil up in a spiral shape to draw the mass of the sealing layer into the borehole and / or press the remaining mass against the surface. In addition to its protective function, the protective layer can also serve as an insertion aid for the flowable sealing layer.
[0035] Furthermore, the invention relates to a borehole seal, which is produced in particular by means of the system for sealing a borehole. The borehole seal comprises a fastening element with a shaft arranged at least partially in the borehole and a deformable sealing element for sealing the borehole. A gap formed between the shaft and the borehole is fluid-tightly sealed by a mass component of the sealing element drawn into the borehole by means of the shaft of the fastening element. The fastening element may have a thread formed on the shaft. As a mass component of the sealing element, a flowable sealing layer may be drawn at least partially into the borehole through the thread for sealing the borehole. Furthermore, the fastening element may be held in the borehole by a connecting element. The connecting element may be fluid-tightly sealed by the mass component of the sealing element.
[0036] A component can be positioned on a surface surrounding the borehole using a fastening element. The sealing element can be deformed by the fastening element in such a way that a joint formed between the component and the surface is sealed fluid-tight by a further mass component of the sealing element. The mass components can be adjusted relative to the dimensions of the borehole by dimensioning the sealing element as described above. The deformable sealing element, in particular the flowable sealing layer, rarely or never hardens and is easily displaced by the fastening element.
[0037] Furthermore, the invention relates to the use of the system for sealing a borehole in a damp room, particularly in a sanitary room, especially in bathrooms, saunas, or kitchens. The system can be used to seal a borehole in an area that is not visible. The system can also be used in an environment with a permanently elevated ambient pressure of at least 0.02 bar. Furthermore, the environment can have an operating temperature between 15 and 45 °C, 15 and 25 °C, or 18 and 22 °C. In particular, the system can be used at room temperature.
[0038] An embodiment of the invention is explained below with reference to the drawings. The drawings show, in schematic representation:
[0039] Figure 1 shows a perspective view of a system according to the invention for sealing a borehole,
[0040] Figures 2 to 4 show steps of a method for sealing a borehole using the system of Figure 1, Figure 5 shows a cross-section through a borehole seal with a possible embodiment of a fastening element, and
[0041] Figure 6 shows a perspective view of the borehole sealing of Figure 5 with a component attached to a surface surrounding the borehole by means of the fastening element.
[0042] Figure 1 shows a system 1 according to the invention for sealing a borehole 2, comprising a fastening element s, a deformable sealing element 4 and a penetration tool 5.
[0043] The fastening element 3 has a shaft 6 and a head 7 connected to the shaft 6. The shaft 6 and the head 7 are arranged coaxially with respect to a longitudinal axis LB of the fastening element 3. The fastening element 3 is, for example, designed as a screw. A thread 8, for example a wood thread, is formed on the shaft 6. The system 1 can further include a connecting element 9, as shown in Figure 2. The connecting element 9 is, for example, designed as a dowel.
[0044] The deformable sealing element 4 has a flowable sealing layer 10 and a protective layer 11 arranged on the sealing layer 10. The sealing layer 10 is made of butyl rubber. Furthermore, the sealing element 4 has a top surface 12 and a bottom surface 13 arranged at a distance from the top surface 12 along a principal axis H of the sealing element 4. The sealing element 4 is disc-shaped, meaning that its thickness along the principal axis H is significantly less than its length and width.
[0045] The protective layer 11 comprises aluminum and is arranged on the sealing layer 10. The protective layer 11 may have a carrier film onto which an aluminum layer is vapor-deposited. Furthermore, the protective layer 11 has a thickness D2 with a value between 10 and 40 µm, for example, 20 µm. The protective layer 11 is formed on the top surface 12 of the sealing element 4. Additionally, a film 30 is provided to cover the bottom surface 13 of the sealing element 4.
[0046] Furthermore, the sealing element 4 is, for example, rotationally symmetrical about the main axis H. The underside 13 of the sealing element 4 is circular perpendicular to the main axis H. The sealing element 4 has an outer diameter A of 20 to 60 mm, here, for example, 40 mm. The outer diameter A of the sealing element 4 denotes the diameter of the circular underside 13. The top side 12 of the sealing element 4 is arranged parallel to the underside 13 but can also have a curvature. The sealing element 4 has a thickness D1 in the direction along the main axis H from the underside 13 to the top side 12, with a value between 1 mm and 4 mm, here, for example, 2.5 mm.
[0047] The penetration tool 5 is designed to be handheld, i.e., grasped with one hand by a user. Furthermore, the penetration tool 5 is a separate component distinct from the fastening element 3. The penetration tool 5 has a dome 14 and a holding section 15. The holding section 15 is designed to grip the penetration tool 5. For this purpose, the holding section 15 has a polygonal cross-section, for example, a rectangular cross-section, arranged transversely to a longitudinal axis LD of the penetration tool 5, and several side surfaces 16, for example, two. Recesses or protrusions 17 are formed on the side surfaces 16 to facilitate handling.
[0048] The penetration tool 5 is formed in one piece. The retaining section 15 and the mandrel 14 are connected to each other at a connecting section 18. The connecting section 18 has a larger diameter D3 than the mandrel 14. The dome 14 is an end section 19 of the penetration tool 5 with a cross-section that decreases in the direction along the longitudinal axis LD of the penetration tool. The dome 14 has a tip 20 at the end section 19 of the penetration tool 5. The penetration tool 5 is made of a plastic material with low surface tension, here, for example, polypropylene.
[0049] System 1 can be used to carry out a method for sealing a borehole 2, as illustrated by way of example in Figures 2 to 4. Before the deformable sealing element 4 is positioned, a surface 21 surrounding the borehole 2 is cleaned of dirt particles. Dirt particles can be, for example, dirt, dust, oil, or grease particles. Furthermore, the surface 21 is dried after cleaning.
[0050] As shown in Figure 2, an opening 22 is created in the sealing element 4 using the penetration tool 5. The opening 22 is created centrally on the sealing element 4. To create the opening 22, the penetration tool 5 is moved towards the sealing element 4 along the main axis H, and the dome 14 penetrates the protective layer 11 on the top 12 and bottom 13 of the sealing element 4, which is preferably undamaged beforehand. The deformable sealing element 4 is positioned at the borehole 2 together with the penetration tool 5, so that the dome 14 of the penetration tool 5 can be used to position the sealing element 4 on the borehole 2. The connecting element 9 can be positioned in the borehole 2 before the sealing element 4 is positioned. Before placing the sealing element 4 on the borehole 2, the optional additional foil 30 can be removed from the underside 13 of the sealing element 4.
[0051] To position the fastening element 3 in the borehole 2, it is inserted through the opening 22 of the sealing element 4. At least the thread 8 of the shaft 6 is positioned in the borehole 2. Additionally, the fastening element 3 is cleaned before being positioned in the borehole 2.
[0052] When the shaft 6 passes through the opening 22 of the sealing element 4 and the sealing layer 10, a mass component 23 of the sealing element 4 adheres to the thread 8 of the shaft 6, so that the mass component 23 is drawn into the borehole 2 by means of the shaft 6. In the borehole 2, the mass component 23 is distributed in such a way that a gap 24 formed between the shaft 6 of the fastening element 4 and the borehole 2 is sealed fluid-tight.
[0053] A borehole seal 25, produced by means of system 1 for sealing the borehole 2 and shown in Figure 4, comprises the fastening element 3, the connecting element 9 and the deformed sealing element 4. The gap 24 formed between the shaft 6 of the fastening element 3 and the borehole 2 is fluid-tightly sealed by the mass portion 23 of the sealing element 4, which is drawn into the borehole 2 by means of the shaft 6 of the fastening element 3.
[0054] As mass fraction 23 of the sealing element 4, the flowable sealing layer 10 is at least partially drawn through the thread 8 into the borehole 2, so that the thread 8 and the connecting element 9 are also fluid-tight sealed.
[0055] Figure 5 shows a borehole seal 25 with an alternative embodiment of the fastening element 3. The same reference numerals are used for identical components or elements. The fastening element 3 shown in Figure 5 differs from the fastening element shown in Figure 4 in that the thread 8 is not a wood thread, but a high-pitch thread.
[0056] Before the fastening element 3 is positioned on the surface 21, a component 26 can be positioned on the surface 21, as shown in Figure 6, and then attached to the surface 21 with the fastening element 3. The sealing element 4 can be positioned between the component 26 and the surface 21. The sealing element 4 can be deformed by means of the fastening element 3 such that a joint 27 formed between the component 26 and the surface 21 is fluid-tightly sealed by a further mass component 28 of the sealing element 4.
[0057] The component 26 to be fastened can be designed such that it does not have its own sealing surface, since the component 26 does not lie flush against the surface 21 when installed. The joint 27 denotes a gap between a connecting surface 29 of the component 26 and the surface 21. For example, a bathtub anchor is fastened to the surface 21 as component 26.
[0058] System 1 can be used to seal borehole 2 in a damp room, particularly in a sanitary room, for example in bathrooms, saunas, or kitchens. The deformable sealing element 4, due to the use of butyl rubber for the sealing layer 10, rarely or never hardens and can be easily displaced by the fastening element 3, thus enabling a particularly reliable seal of borehole 2 to be created simply and quickly. All features described in connection with individual embodiments of the invention can be provided in different combinations for System 1, the method, or the borehole seal 25 in order to realize their advantageous effects, even if these have been described for different embodiments. For example, the fastening element 3 can have a wood thread, a plastic thread, a metric thread, or a thread with a high or low pitch.Reference numeral list.
[0059] 1 System for sealing a borehole 2 Borehole
[0060] 3 Fastening element (screw)
[0061] 4 Sealing element
[0062] 5 Penetration tool
[0063] 6 shaft
[0064] 7 heads
[0065] 8 threads
[0066] 9 Connecting element (dowel)
[0067] 10 Sealing layer
[0068] 11 Protective layer
[0069] 12 Top side of the sealing element
[0070] 13 Underside of the sealing element
[0071] 14 Cathedral
[0072] 15 Stop section
[0073] 16 side surface
[0074] 17 In-depth / survey
[0075] 18 Connecting section
[0076] 19 End section of the penetration tool 20 Tip
[0077] 21 surface
[0078] 22 Opening
[0079] 23 mass fraction
[0080] 24 columns
[0081] 25 Borehole sealing
[0082] 26 Component (bathtub anchor)
[0083] 27 joint 28 further mass share
[0084] 29 Connecting surface
[0085] 30 slides
[0086] A Outer diameter of the sealing element D1 Thickness of the sealing element
[0087] D2 thickness of the protective layer
[0088] D3 Diameter of the connecting section H Main axis
[0089] LB Longitudinal axis of the fastening element LD Longitudinal axis of the penetration tool
Claims
MEPA - Pauli und Menden GmbH January 29, 2026 Rolandsecker Weg 37 Be / Hü (2026002509) 53619 Rheinbreitbach Q24518WO10 System for sealing a borehole as well as borehole sealing Claims 1. System for sealing a borehole, especially in a damp room, comprising a fastening element (3) with a shaft (6) for placement in the borehole (2), a deformable sealing element (4) for placing on the borehole (2) and a penetration tool (5) for creating an opening (22) in the sealing element (4) for arranging the fastening element (3).
2. System for sealing a borehole according to claim 1 , characterized by that the deformable sealing element (4) has a flowable sealing layer (10) and a protective layer (11) arranged on the sealing layer (10).
3. System for sealing a borehole according to claim 1 or 2, characterized in that, that the sealing layer (10) is made of butyl rubber and the protective layer (11) has aluminium.
4. System for sealing a borehole according to claim 2 or 3, characterized in that, that the protective layer (11) has a carrier film made of a plastic, wherein an aluminium layer is vapor-deposited onto the carrier film.
5. System for sealing a borehole according to one of claims 1 to 4, characterized in that, that the sealing element (4) is disc-shaped, wherein the sealing element (4) has an outer diameter (A) of 20 to 60 mm, 30 to 50 mm or 35 to 45 mm.
6. System for sealing a borehole according to one of claims 1 to 5, characterized in that that the penetration tool (5) has a dome (14) and a holding section (15), wherein the holding section (15) is designed to grip the penetration tool (5).
7. System for sealing a borehole according to one of claims 1 to 6, characterized in that, that the penetration tool (5) is made of a plastic material with low surface tension, in particular polypropylene.
8. Borehole sealing, in particular produced by means of a system according to one of claims 1 to 7, comprising - a fastening element (3) with a shaft (6) arranged at least partially in the borehole (2), - a deformable sealing element (4) for sealing the borehole (2), wherein - a gap (24) formed between the shaft (6) and the borehole (2) is fluid-tightly sealed by a mass fraction (23) of the sealing element (4) drawn into the borehole (2) by means of the shaft (6) of the fastening element (3).
9. Borehole sealing according to claim 8, characterized by that the fastening element (3) has a thread (8) formed on the shaft (6) and a flowable sealing layer (4) is drawn into the borehole (2) at least partially as a mass fraction (23) of the sealing element (4) through the thread (8) to seal the borehole (2).
10. Borehole sealing according to claim 8 or 9, characterized by that the fastening element (3) is held in the borehole (2) by a connecting element (9), wherein the connecting element (9) is fluid-tightly sealed by the mass fraction (23) of the sealing element (4).
11. Borehole sealing according to one of claims 8 to 10, characterized by that a component (26) is attached to a surface (21) surrounding the borehole (2) by means of the fastening element (3), wherein the sealing element (4) is deformed by means of the fastening element (3) such that a joint (27) formed between the component (26) and the surface (21) is fluid-tightly sealed by a further mass fraction (28) of the sealing element (4).
12. Method for sealing a borehole, especially in a damp room, comprising the following steps: Creating an opening (22) in a deformable sealing element (4) using a penetration tool (5), Positioning the sealing element (4) on the borehole (2), Arranging a fastening element (3) with a shaft (6) in the borehole (2), wherein a mass fraction (23) of the sealing element (4) is drawn into the borehole (2) by means of the shaft (6) to fluidly seal a gap (24) formed between the shaft (6) and the borehole (2).
13. Method for sealing a borehole according to claim 12, characterized by that the sealing element (4) is positioned on the borehole (2) using the penetration tool (5).
14. Method for sealing a borehole according to claim 12 or 13, characterized in that, that a surface (21) surrounding the borehole (2) is freed from dirt particles before the deformable sealing element (4) is arranged and the sealing element (4) is pressed against the surface (21) surrounding the borehole (2).
5. Method for sealing a borehole according to one of claims 12 to 14, characterized by that a component (26) is arranged on the surface (21) surrounding the borehole (2) prior to the arrangement of the fastening element (3) and is attached to the surface (21) with the fastening element (3), wherein the sealing element (4) is deformed by means of the fastening element (3) in such a way that a joint (27) formed between the component (26) and the surface (2) is fluid-tightly sealed by a further mass fraction (28) of the sealing element (4).