Marking device, marking arrangement and method for marking the position of a wall-mounted installation connection on the back of a wall-mounted wall cladding panel

Abstract

Marking device (1) for marking the position of an installation connection (2) arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall, characterized by at least one connecting sleeve (21) with an internal thread (22) that can be screwed into the installation connection (2) or into a blind cover (17) that can be arranged coaxially on the installation connection (2) and at least one marking unit (6) that can be connected to the leveling thread sleeve (3), wherein the marking unit (6) has at least one disc-shaped handling section (7) and at least one connecting pin (9) extending transversely to the handling section (7) and connected centrally to the handling section (7), wherein the connecting pin (9) is designed to be inserted into the leveling thread sleeve (3) under elastic deformation.

Description

Technical field

[0001] The invention relates to a marking device for marking the position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall. The invention further relates to a method for marking the position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall. State of the art

[0002] Water-carrying installation connections may be present on the walls of a newly constructed or renovated building, particularly if the wall is located in a room designated as a kitchen or bathroom. If such a wall is to be covered with wall cladding panels, such as tiles, cutouts must be made in the panels to allow access to the installation connections after the panels have been installed.

[0003] Traditionally, this requires complex and time-consuming measuring processes on the wall and marking processes on a wall cladding panel to be placed on the wall based on the resulting measurement results, which entails the risk of measurement errors and marking errors that can lead to an undesirably increased waste of wall cladding panel material.

[0004] German patent DE 20 2009 014 448 U1 discloses a marker for installation work in plumbing, IT, and electrical systems, as well as for heating, ventilation, and air conditioning (HVAC) systems, particularly for marking cavity wall and flush-mounted boxes. The marker has a holder with a marking device that can be reversibly positioned in, on, or attached to an installation. This eliminates the need for the measuring and marking processes described above.

[0005] DE 10 2015 004 053 B3 relates to a template for marking cavity wall boxes and their functional inserts. DE 10 2018 000 626 A1 relates to a marking tool for marking a fastening position for attaching a fixture element to an installation structure. DE 10 2004 010 608 A1 relates to a box cover with an outer diameter that corresponds at least partially to the inner diameter of a connection unit, wherein a rigid projection is arranged in the center of the box cover. DE 20 2016 107 288 U1 relates to a drilling template for plasterboard or other coverings of cavity wall boxes, wherein the drilling template has a cover plate, at least one marking unit and at least one centering means, and the marking unit is arranged at the center of the cover plate. Disclosure of the invention

[0006] One object of the invention is to significantly reduce the effort required to mark the position of an installation connection arranged on a wall on the back of a wall cladding panel that can be arranged on the wall, and to minimize waste of wall cladding panel material when cladding a wall provided with installation connections.

[0007] This problem is solved by the independent claims. Advantageous embodiments are described in the dependent claims, the following description, and the figures, whereby these embodiments, either individually or in combination with at least two of them, can represent an advantageous and / or further developing aspect of the invention. Advantageous embodiments of the marking device can correspond to advantageous embodiments of the method, and vice versa, even if this is not explicitly mentioned below.

[0008] A marking device according to the invention for marking a position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall has at least one leveling thread sleeve that can be screwed into the installation connection or into a connecting sleeve with an internal thread that can be arranged on a blind cover that can be arranged coaxially on the installation connection, and at least one marking unit that can be connected to the leveling thread sleeve, wherein the marking unit has at least one disc-shaped handling section and at least one connecting pin extending transversely to the handling section and connected centrally to the handling section, wherein the connecting pin is designed to be inserted into the leveling thread sleeve under elastic deformation.

[0009] The invention enables the marking of the position of a wall-mounted installation connection on the back of a wall cladding panel without prior measurements on the wall. Instead, the leveling thread sleeve is screwed directly into the installation connection, which can be designed, for example, as a wall plate or wall connection plate, or into the connecting sleeve with the internal thread that can be arranged coaxially on the installation connection. The connecting pin is then inserted axially into the leveling thread sleeve, whereby the connecting pin deforms partially or completely elastically to securely fix the marking unit temporarily to the leveling thread sleeve.The wall cladding panel, which is to be positioned on the wall in the area of ​​the installation connection, can then be held in its designated position relative to the wall and pressed against the marking unit in this position, thus creating the desired mark on the back of the wall cladding panel. After the marked wall cladding panel has been removed from the wall, a cutout can be made in the area of ​​the mark on the wall cladding panel, with the mark defining the center of the cutout. First, the wall cladding panel can be drilled through at the center of the mark. Finally, the cutout in the wall cladding panel can be made, for example, by milling.The position of the cutout on the wall cladding panel then corresponds extremely precisely to the position of the installation connection relative to the wall cladding panel to be arranged on the wall.

[0010] The leveling thread sleeve is a sleeve with an external thread that extends over part or all of its axial length. If the installation connection is designed as a wall plate or wall connection plate, it has a spigot with a standardized internal thread into which the leveling thread sleeve can be screwed directly. If the installation connection is designed, for example, as a socket outlet, toilet drain outlet, toilet inlet outlet, or similar, the leveling thread sleeve can be screwed into the connecting sleeve with an internal thread, which can be attached to the blanking plate that is positioned coaxially with the installation connection.

[0011] If two or more installation connections are present in the area of ​​the wall cladding panel to be mounted on the wall, each connection can be equipped with its own marking device. The axial lengths of the leveling thread sleeves are selected such that the axial ends of the leveling thread sleeves pointing away from the wall are aligned in the same plane or leveled relative to each other when screwed into the respective installation connections. This allows two or more markings to be created simultaneously on the back of the wall cladding panel.

[0012] The marking unit is used to actually create the marking on the back of the wall cladding panel. The marking can be created, for example, by a dye transferred to the back of the wall cladding panel through contact with the marking unit. Alternatively, the marking unit can be designed to remove or compress material from the back of the wall cladding panel upon contact, thereby creating the marking.

[0013] The handling section and the connecting pin of the marking unit are preferably arranged relative to each other such that the marking unit is essentially mushroom-shaped. The fact that the handling section is disc-shaped means that it extends essentially in one plane and has a thickness that is many times smaller than the dimensions of the handling section in its plane of extension. The dimensions of the handling section in its plane of extension can, for example, be at least twice the outer diameter of the leveling thread sleeve and at most four times the outer diameter of the leveling thread sleeve. The marking unit can be handled via the handling section without a person coming into contact with, for example, a dye arranged on the marking unit.

[0014] The connecting pin runs, for example, perpendicular to the plane of extension of the handling section. Preferably, the connecting pin is integrally or monolithically connected to the handling section, so that no assembly steps are required for this connection. The connecting pin is connected to a center or a central section of the handling section. This results in the marking unit being essentially mushroom-shaped.

[0015] When the connecting pin is inserted into the leveling thread sleeve, the connecting pin comes into physical contact with the leveling thread sleeve, causing the connecting pin to be partially or completely elastically deformed, thereby forming a press fit between the connecting pin and the leveling thread sleeve, which temporarily and securely fixes the marking unit to the leveling thread sleeve.

[0016] The marking device according to the invention can be used to create markings on wall cladding panels of various types. For example, the wall cladding panel can be a tile, natural stone slab, wooden panel, plastic panel, composite panel, glass panel, plasterboard panel, kitchen backsplash, wall panel, or the like.

[0017] According to an advantageous embodiment, the connecting pin has a sleeve-shaped section and at least one elastically deformable lip projecting radially outwards from the sleeve-shaped section and arranged at least partially circumferentially around the sleeve-shaped section. When the connecting pin is inserted into the leveling thread sleeve, the lip, which is arranged partially or completely circumferentially around the sleeve-shaped section, can deform elastically. The lip can, for example, be ring-shaped. Two or more lips can also be formed axially spaced apart from one another on the sleeve-shaped section. The use of the sleeve-shaped section allows for material savings. Furthermore, this provides the possibility that, alternatively or additionally, the sleeve-shaped section can also deform elastically, at least partially, when the connecting pin is inserted into the leveling thread sleeve.

[0018] According to a further advantageous embodiment, the handling section has a circular, elliptical, or polygonal outer contour. The polygonal outer contour can, for example, be defined by equal side lengths. A circular outer contour gives the handling section a symmetrical design, making it equally easy to handle from all directions.

[0019] According to a further advantageous embodiment, the handling section has at least one stiffening angle arranged at least partially radially around its outer circumference. This allows the handling section to be stiffened partially or completely around its circumference, which is particularly advantageous if the handling section is made of a flexible material, such as plastic, since the stiffening of the handling section or the marking unit makes it easier to handle. In particular, compressive forces for attaching the marking unit to the leveling thread sleeve and tensile forces for releasing the marking unit from the leveling thread sleeve can be applied more effectively to the handling section.

[0020] According to a further advantageous embodiment, the marking unit comprises at least one marking element, which can be provided with a dye and is arranged on a side of the handling section opposite the connecting pin, wherein the marking element is arranged in an axial extension of the connecting pin. By arranging the marking element in an axial extension of the connecting pin, the marking element, when the marking unit is mounted on the leveling thread sleeve, is in an axial extension of the leveling thread sleeve, whereby the position of the marking element corresponds exactly to the position of the installation connection connected to the leveling thread sleeve. In an advantageous embodiment, the dye can be considered a component of the marking device. The dye can be in liquid or powder form.

[0021] According to a further advantageous embodiment, the marking element is at least partially designed as a textile element. For example, the marking element is partially or completely made of felt, woven fabric, knitted fabric, braid, nonwoven fabric, or the like. The marking element can, for example, be a circular felt element.

[0022] According to a further advantageous embodiment, the marking element is reversibly and non-destructively connected to the rest of the marking unit. This allows the marking element to be detached and removed from the rest of the marking unit as needed, for example, to clean the marking element and reattach it to the rest of the marking unit, or to replace it with a different marking element.

[0023] According to a further advantageous embodiment, the marking unit has at least one hook-and-loop fastener by which the marking element is connected to the handling section. One component of the hook-and-loop fastener, which has hooks or loops, can be attached to the handling section via an adhesive, while another component of the hook-and-loop fastener, which has loops or hooks, can be attached to the marking element via an adhesive. The use of the hook-and-loop fastener represents a structurally simple and cost-effective way to connect the marking element to the rest of the marking unit in a reversible and non-destructive manner.

[0024] According to a further advantageous embodiment, the handling section and / or the connecting pin and / or the leveling thread sleeve are at least partially made of a plastic. As disclosed above, the handling section can be integrally or monolithically connected to the connecting pin. In this case, the handling section and the connecting pin can be manufactured together or simultaneously, for example, using a casting process. The leveling thread sleeve can be made of a harder plastic than the handling section and the connecting pin. Alternatively, the handling section and / or the connecting pin and / or the leveling thread sleeve can be made partially or completely of a metal, a metal alloy, or a composite material.

[0025] According to a further advantageous embodiment, the marking device has at least one connecting sleeve with an internal thread that can be arranged coaxially on the blanking plate located at the installation connection. In this embodiment, the connecting sleeve is thus part of the marking device, which is only necessary if the installation connection does not have an internal thread, for example, if it is not designed as a wall plate into which the leveling sleeve can be screwed. The connecting sleeve can preferably be fixed to the blanking plate in a non-destructive manner, whereby the connecting sleeve is immovably arranged on the blanking plate in the fixed state and can be reused after being detached from the blanking plate, for example, in conjunction with another or different blanking plate.The blanking plate can have a disc-shaped cover section, which may be circular or have an isosceles polygonal circumferential rim. The connecting sleeve can preferably be arranged coaxially with this cover section. Since the blanking plate itself can be arranged coaxially with the installation connection, the connecting sleeve can also be arranged coaxially with the installation connection. The connecting sleeve can be made partially or entirely of a plastic, a metal, a metal alloy, or a composite material. The internal thread preferably extends over the entire longitudinal extent of the connecting sleeve. To attach the connecting sleeve to the blanking plate, an opening can be formed centrally in the cover section of the blanking plate, through which the connecting sleeve can be inserted.

[0026] According to a further advantageous embodiment, an external thread extending over part of the longitudinal extent of the connecting sleeve is arranged on the connecting sleeve. A radially outwardly projecting collar, at least partially circumferential, is formed at an axial end section of the connecting sleeve, and a nut can be screwed onto the connecting sleeve such that a cover section of the blind cover is clamped between the collar and the nut. This allows the connecting sleeve to be detachably fixed to the blind cover or its cover section without damage. The collar can be arranged or formed partially or completely circumferentially. The collar can bear against an outer surface of the cover section of the blind cover facing away from the wall, while the nut can bear against an inner surface of the cover section facing the wall.The nut can be made partially or completely from a plastic, a metal, a metal alloy, or a composite material.

[0027] A marking arrangement according to the invention for marking a position of an installation connection arranged on a wall on a back side of a wall cladding panel that can be arranged on the wall comprises at least one marking device according to one of the above-mentioned embodiments or a combination of at least two of these embodiments with each other and at least one blanking cover that can be arranged on the installation connection, wherein the blanking cover has at least one disc-shaped cover section for covering the installation connection, in which an opening is formed in the middle through which the connecting sleeve is passed.

[0028] The marking arrangement offers the same advantages as those mentioned above with regard to the marking device. The cover section of the blanking plate can be disc-shaped. The cover section can, for example, be circular or have an isosceles polygonal circumferential rim. The blanking plate can have a fixing section that can be attached to the installation connection and which can be at least indirectly connected to the cover section. The fixing section can, for example, be integrally or monolithically connected to the cover section. The fixing section can, for example, be sleeve-shaped so that it can be inserted over or into the installation connection, or it can have at least two clamping legs that can be inserted into or attached to the installation connection under elastic deformation.

[0029] The invention also relates to the use of the marking device according to one of the aforementioned embodiments or a combination of at least two of these embodiments for marking the position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall. The invention also relates to the use of the aforementioned marking arrangement for marking the position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall.

[0030] A method according to the invention for marking a position of an installation connection arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall comprises the following steps: - Screwing a leveling thread sleeve into the installation connection or into a connecting sleeve with an internal thread arranged on a blanking plate that can be positioned coaxially on the installation connection; and - Attaching a marking unit, which has at least one disc-shaped handling section and at least one connecting pin extending transversely to the handling section and connected centrally to the handling section, to the leveling thread sleeve by inserting the connecting pin into the leveling thread sleeve under elastic deformation.

[0031] The advantages mentioned above with regard to the marking device are correspondingly associated with this method. In particular, the marking device can be used to carry out the method according to one of the embodiments mentioned above or a combination of at least two of these embodiments. Preferably, the method can be carried out without the use of a tool, i.e., purely manually.

[0032] The invention is explained below by way of example with reference to the attached figures using a preferred embodiment, wherein the features explained below can represent an advantageous and / or further developing aspect of the invention both individually and in different combinations with one another. Brief description of the characters

[0033] It shows: Fig. 1 a schematic sectional view of an embodiment of a marking device according to the invention; Fig. 2 a schematic sectional view of the in Fig. 1 Marking device shown in its operating state; Fig. 3 a schematic and perspective representation of the in Fig. Marking device shown in 1; and Fig. 4 a schematic sectional view of an embodiment of a marking arrangement according to the invention. Detailed description of the characters

[0034] In the figures, identical or functionally equivalent components are marked with the same reference symbols. Repeated descriptions of such components may be omitted to avoid unnecessary repetition.

[0035] Fig. Figure 1 shows a schematic sectional view of an embodiment of a marking device 1 according to the invention for marking the position of an installation connection 2 arranged on a wall (not shown) on the back side of a wall cladding panel (not shown) that can be arranged on the wall. The installation connection 2 is of conventional design. In particular, the installation connection 2 is designed as a wall plate or wall connection plate to allow a water supply via the installation connection 2.

[0036] The marking device 1 has a leveling thread sleeve 3 that can be screwed into the installation connection 2. The screwed-in state of the leveling thread sleeve 3 is shown in Fig. Figure 2 shows the leveling thread sleeve 3. It has an external thread 4 (not shown in detail) along its axial length, which is compatible with an internal thread 5 (not shown in detail) formed at the installation connection 2. The leveling thread sleeve 3 is made entirely of plastic.

[0037] Furthermore, the marking device 1 has a marking unit 6 that can be connected to the leveling thread sleeve 3. The marking unit 6 has a circular-shaped handling section 7, which is particularly advantageous in Fig. Figure 3 shows that the handling section 7 has a circular outer contour, as shown in Figure 3. Fig. Figure 3 shows that the handling section 7 has a fully radially circumferential stiffening angle 8, which is thus ring-shaped. The handling section 7 is made entirely of a plastic, which is softer than the plastic from which the leveling thread sleeve is made.

[0038] Furthermore, the marking unit 6 has a connecting pin 9 extending transversely to the handling section 7 and connected to the handling section 7 at its center. The connecting pin 9 is designed to be inserted into the leveling thread sleeve 3 under elastic deformation, as shown in Fig. Figure 2 shows the connecting pin 9. It has a sleeve-shaped section 10 and two elastically deformable lips 11, projecting radially outwards from the sleeve-shaped section 10 and arranged axially spaced apart from each other, completely circumferentially on the sleeve-shaped section 10. The connecting pin 9 is made of the same plastic as the handling section 7. In particular, the connecting pin 9 is integrally or monolithically connected to the handling section 7.

[0039] Furthermore, the marking unit 6 has a marking element 12 that can be coated with a dye. The marking element 12 is arranged on a side of the handling section 7 opposite the connecting pin 9. The marking element 12 is arranged in an axial extension of the connecting pin 9. The marking element 12 is designed entirely as a textile element, in particular as a felt element.

[0040] Furthermore, the marking element 12 is reversibly and non-destructively connected to the rest of the marking unit or the handling section 7. For this purpose, the marking unit 6 has a hook-and-loop fastener 13 via which the marking element 12 is connected to the handling section 7. The hook-and-loop fastener 13 has a hook-and-loop element 14 bonded to the marking element 12 and a hook-and-loop element 15 bonded to the handling section 7.

[0041] Fig. Figure 2 shows a schematic cross-sectional view of the in Fig. 1 Marking device 1 shown in the state of use, in which the leveling thread sleeve 3 is screwed into the installation connection 2 and the connecting pin 9 is inserted axially into the leveling thread sleeve 3 under elastic deformation of the lips 11.

[0042] Fig. Figure 3 shows a schematic and perspective representation of the in Fig. Marking device shown in 1. In Fig. Figure 3 shows in particular the circular disc shape of the handling section 7, the marking element 12 and the hook and loop fastener 13.

[0043] Fig. Figure 4 shows a schematic sectional view of an embodiment of a marking arrangement 16 according to the invention for marking the position of an installation connection 2 arranged on a wall on the back side of a wall cladding panel that can be arranged on the wall. The installation connection 2 is designed as a toilet drain pipe that is at least partially sleeve-shaped or as a socket receptacle that is at least partially sleeve-shaped.

[0044] The marking arrangement 16 includes a marking device 1 for marking the position of the installation connection 2, located on the wall (not shown), on the back of the wall cladding panel (not shown), which can be mounted on the wall. The marking arrangement 16 also includes a blanking cover 17, which can be mounted on the installation connection 2, and in particular, partially inserted into it.

[0045] The blanking plate 17 has a disc-shaped cover section 18 for covering the installation connection 2 and a sleeve-shaped or hollow cylindrical fixing section 19 integrally connected to the cover section 18. A central opening 20 is formed in the cover section 18.

[0046] The marking device 1 has a leveling thread sleeve 3 which has an external thread 4 (not shown in detail) along its axial length. The leveling thread sleeve 3 is made entirely of plastic. The leveling thread sleeve 3 is designed according to the specifications in the Fig. 1 to 3 shown embodiment.

[0047] Furthermore, the marking device 1 has a marking unit 6 that can be connected to the leveling thread sleeve 3, which corresponds to the one described in the Fig. The marking unit 6 is designed as shown in the embodiment 1 to 3. The marking unit has a circular-shaped handling section 7, which is particularly evident in Fig. Figure 3 shows that the handling section 7 has a circular outer contour, as shown in Figure 3. Fig. Figure 3 shows that the handling section 7 has a fully radially circumferential stiffening angle 8, which is thus ring-shaped. The handling section 7 is made entirely of a plastic, which is softer than the plastic from which the leveling thread sleeve is made.

[0048] Furthermore, the marking unit 6 has a connecting pin 9 extending transversely to the handling section 7 and connected to the handling section 7 at its center. The connecting pin 9 is designed to be inserted into the leveling thread sleeve 3 under elastic deformation, as shown in Fig.Figure 2 shows the connecting pin 9. It has a sleeve-shaped section 10 and two elastically deformable lips 11, projecting radially outwards from the sleeve-shaped section 10 and arranged axially spaced apart from each other, completely circumferentially on the sleeve-shaped section 10. The connecting pin 9 is made of the same plastic as the handling section 7. In particular, the connecting pin 9 is integrally or monolithically connected to the handling section 7.

[0049] Furthermore, the marking unit 6 has a marking element 12 that can be coated with a dye. The marking element 12 is arranged on a side of the handling section 7 opposite the connecting pin 9. The marking element 12 is arranged in an axial extension of the connecting pin 9. The marking element 12 is designed entirely as a textile element, in particular as a felt element.

[0050] Furthermore, the marking element 12 is reversibly and non-destructively connected to the rest of the marking unit or the handling section 7. For this purpose, the marking unit 6 has a hook-and-loop fastener 13 via which the marking element 12 is connected to the handling section 7. The hook-and-loop fastener 13 has a hook-and-loop element 14 bonded to the marking element 12 and a hook-and-loop element 15 bonded to the handling section 7.

[0051] The marking device 1 also has a connecting sleeve 21, which can be arranged coaxially on the blanking cover 17 that can be positioned on the installation connection 2, and which has an internal thread 22 (not shown in detail). The connecting sleeve 21 passes through the central opening 20 in the cover section 18 of the blanking cover 17. The connecting sleeve 21 is made entirely of plastic. The external thread 4 of the leveling thread sleeve 3 is compatible with the internal thread 22 of the connecting sleeve 21, so that the leveling thread sleeve 3 can be screwed into the connecting sleeve 21.

[0052] An external thread 23, not shown in detail, is arranged on the connecting sleeve 21 and extends over part of its longitudinal extent. A radially outwardly projecting collar 24, forming a complete circumferential ring around the connecting sleeve 21, is formed on one axial end section of the connecting sleeve 21 facing the marking unit 6.

[0053] The marking device 1 also has a nut 25 which is screwed onto the connecting sleeve 21 and can be screwed onto the connecting sleeve 21 in such a way that the cover section 18 of the blind cover 17 is clamped between the collar 24 and the nut 25 in order to fix the connecting sleeve 21 to the blind cover 17. Reference symbol list 1 marking device 2 Installation connection 3 Leveling thread sleeve 4 external threads on 3 5 internal threads on 2 6 marking units 7 Handling section of 6 8 Stiffening angle of 7 9 connecting pins of 6 10 sleeve-shaped section of 9 11 Lippe out of 9 12 marking element 13 Velcro connection 14 Velcro elements 15 Velcro elements 16 Marking arrangement 17 Blanking plate 18 Cover section of 17 19 Determination section of 17 20 central opening at 18 21 Connecting sleeve 22 internal threads on 21 23 external threads on 21 24 collars on 21 25 mother

Claims

[1] Marking device (1) for marking a position of an installation connection (2) arranged on a wall on a back side of a wall cladding panel that can be arranged on the wall, characterized by at least one leveling thread sleeve (3) that can be screwed into the installation connection (2) or into a connecting sleeve (21) with an internal thread (22) that can be arranged coaxially on the installation connection (2) and at least one marking unit (6) that can be connected to the leveling thread sleeve (3), wherein the marking unit (6) has at least one disc-shaped handling section (7) and at least one connecting pin (9) extending transversely to the handling section (7) and connected centrally to the handling section (7), wherein the connecting pin (9) is designed to be inserted into the leveling thread sleeve (3) under elastic deformation. [2] Marking device (1) according to claim 1, characterized by, that the connecting pin (9) has a sleeve-shaped section (10) and at least one elastically deformable lip (11) extending radially outwards from the sleeve-shaped section (10) and arranged at least partially circumferentially on the sleeve-shaped section (10). [3] Marking device (1) according to claim 1 or 2, characterized by , that the handling section (7) has a circular, elliptical or polygonal outer contour. [4] Marking device (1) according to any one of claims 1 to 3, characterized by that the handling section (7) has at least one stiffening angle (8) arranged at least partially radially around the outside. [5] Marking device (1) according to any one of claims 1 to 4, characterized by, that the marking unit (6) has at least one marking element (12) that can be provided with a dye and is arranged on a side of the handling section (7) opposite the connecting pin (9), wherein the marking element (12) is arranged in an axial extension of the connecting pin (9). [6] Marking device (1) according to claim 5, characterized by , that the marking element (12) is at least partially designed as a textile element. [7] Marking device (1) according to claim 5 or 6, characterized by , that the marking element (12) is reversibly and non-destructively connected to the rest of the marking unit. [8] Marking device (1) according to claim 7, characterized by that the marking unit (6) has at least one hook and loop fastener (13) via which the marking element (12) is connected to the handling section (7). [9] Marking device (1) according to any one of claims 1 to 8, characterized bythat the handling section (7) and / or the connecting pin (9) and / or the leveling thread sleeve (3) are at least partially made of a plastic. [10] Marking device (1) according to any one of claims 1 to 9, characterized by , that an external thread (23) extending over part of a longitudinal extension of the connecting sleeve (21) is arranged on the connecting sleeve (21), wherein a radially outwardly pointing collar (24) formed at least partially circumferentially on the connecting sleeve (21) is formed on an axial end section of the connecting sleeve (21) and wherein a nut (25) can be screwed onto the connecting sleeve (21) such that a cover section (18) of the blind cover (17) is clamped between the collar (24) and the nut (25). [11] Marking arrangement (16) for marking a position of an installation connection (2) arranged on a wall on a back side of a wall cladding panel that can be arranged on the wall, characterized by at least one marking device (1) according to one of claims 1 to 10 and at least one blanking cover (17) that can be arranged on the installation connection (2), wherein the blanking cover (17) has at least one disc-shaped cover section (18) for covering the installation connection (2), in which a central opening (20) is formed through which the connecting sleeve (21) is passed. [12] Method for marking a position of an installation connection (2) arranged on a wall on a back side of a wall cladding panel that can be arranged on the wall, comprising the steps: - Screwing a leveling thread sleeve (3) into the installation connection (2) or into a connecting sleeve (21) with an internal thread (22) arranged on a blanking cover (17) that can be arranged coaxially on the installation connection (2); and - Attaching a marking unit (6), which has at least one disc-shaped handling section (7) and at least one connecting pin (9) extending transversely to the handling section (7) and connected centrally to the handling section (7), to the leveling thread sleeve (3) by inserting the connecting pin (9) into the leveling thread sleeve (3) under elastic deformation.

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