EP3321429A1 - Leak protection for a toilet cistern - Google Patents

Abstract

The invention relates to a toilet cistern with a leakage protection protective wall. 6

Description

The present invention relates to a leakage protection for a flush-mounted water dispenser and its use.

Toilets by definition have a water flush and the most common solution involves a cistern for storing a sufficient Spülwasservolumens. Such a filling is discharged to an operating command through a flushing pipe in the toilet bowl, whereupon the cistern is refilled from a supply line. Modern cisterns usually consist essentially of an injection molded or blow molded plastic tank and in the past, ceramic cisterns were in use. Regardless of the choice of material cistern always has a certain residual risk of leakage. For example. For example, a small damage to the cistern may occur on the construction site or during the assembly process and remain undetected, which would result in concealed water leakage, in particular when flush-mounted cisterns are no longer visible after installation in a room wall.

Similar problems arise with other flush-mounted water dispensers, z. B. flush-mounted flush valves, so valves for a cistern-less toilet flushing, concealed fittings and flush-mounted mixing valves.

The described undetected leaks are especially problematic for wooden houses or wooden elements in houses and can lead to considerable damage. Therefore, additional protective measures are desired or even required depending on the country concerned.

In this context, there are different solutions in the form of more or less removed from the cistern hard plastic shells or - shells, the water from a leak z. B. should lead to the bathroom floor and thus in a visible area. For example, reference is made to the EP 2 821 557 A , Furthermore, it has been proposed to wrap the cistern from the outside with a kind of foil bag, which is referred to the EP 2 397 613 A ,

The present invention has for its object to provide a practical way for leakage protection of a flush-mounted water dispenser.

This object is achieved by a leakage protection for a flush-mounted water dispenser, especially a concealed cistern for mounting in a room wall, a concealed flush valve, a concealed fitting or a flush-mounted mixing valve, with an opening forming an opening to the front and the concealed water dispenser below the side and rear surrounding protective wall Receiving the flush-mounted water dispenser and for collecting any leakage water from the flush-mounted water dispenser and provided on the protective wall flexible film seal, which is designed to seal the transition of the protective wall to a front of the room wall surrounding the opening, and in one of the front opening in the protective wall outward position can be brought, and their advantageous uses.

Preferred embodiments are subject of the dependent claims and are to be understood generally with respect to all invention categories.

In the following, for the sake of simplicity and representative only spoken by a cistern, but the invention relates generally to flush-mounted water dispensers, and esp. Concrete flush boxes, concealed flush valves, concealed fittings and flush-mounted mixing valves.

The invention is based on an enclosure of the cistern in the form of a watertight protective wall, which surrounds the cistern down, laterally and rearwardly and forms an opening to the front. The orientation data relate while on the mounted state, where "forward" means pointing into the room and "back" the direction of the room in the wall of the room and finally "lateral" means the horizontal transverse directions thereto. The protective wall serves as a collecting container for any leakage water and is accordingly designed to be leak-proof, whereby it does not necessarily (but preferably nevertheless) have to reach the full height of the cistern and does not necessarily (but preferably nevertheless) surround the cistern also upwards. However, according to the invention, it is open at the front, at least to a substantial extent, in order to allow a corresponding access to the flushing cistern.

Also forward, the protective wall on a flexible seal with which the protective wall can be sealed in the assembled state against a front side of the room wall. In any case, this seal is provided at the bottom and laterally around the opening, preferably continuously up to the top and also to ensure that water from the protective wall can not run into the wall of the room. In this case, of course, discharges for the leakage water from the protective wall within the room wall no restriction on the importance of tightness but on the contrary preferred. Namely, instead of, for example, an electronic sensor for detecting a water level in the protective wall, it may simply be desired to direct any leakage water through a pipe running inside the room wall into the room or into the toilet bowl, thus attracting attention and for repair to care.

"Flexible" in the sense of this application and with respect to the seal means that change the seal without damage (eg., By breaking) in shape, so z. B. fold or fold down. Flexible is therefore "not dimensionally stable", in relation to forces to be applied by an installer by hand. It is important to be able to create the seal during assembly over corresponding edges in the room wall around or at the edges, so that there is a tight transition from the protective wall to the front of the room wall. The room wall front itself can then z. B. be treated waterproof or made of anyway waterproof material. As a rule, this front side is not the ultimately visible side but is otherwise covered.

From this function also shows that the seal does not have to be flexible through and through, but z. B. parts could be dimensionally stable, although that is not preferred.

Preferably, the flexible seal is pasted over in the folded state, z. B. with tiles, stone slabs, wood-based panels or the like. Preferably, the room wall is waterproof coated under this glued wall paneling, at least in the vicinity of the cistern in the vulnerable areas.

The advantage of the invention is that the front opening in the protective wall allows direct access to the cistern, preferably even allows replacement of the cistern through the opening. At the same time, the leakage protection function is unrestricted. It is also more flexible and reliable than z. B. in the prior art EP 2 821 557 A1 where according to FIG. 3 and the description of a dimensionally stable protective wall is simply sawed off plan to the room wall front. The remaining gaps must then probably be sealed with separate precautions and z. B. at slight sitting movements or other (for wooden houses quite typical) small movements endangered or leaking. However, the flexible seal according to the invention can, if required, also be transferred to the front of the room wall and fixed there, and in any case is much easier to adjust with respect to the direction perpendicular to the room wall plane (depth) and to small geometric deviations. In particular, it may preferably also serve to compensate for different thicknesses of a planking of the room wall, as described for the rigid protective wall in the cited prior art, but need not necessarily be cut off.

The protective wall, however, does not have to be flexible (but this can be the case in some cases), but is preferably made of dimensionally stable plastic, ie with the usual manual forces of a mechanic (apart from elastic reactions) not to be deformed substantially without material damage. As the cited prior art in itself correctly states, such dimensionally stable protective walls or shells are in some respects less vulnerable to injury, for example. If an already pre-assembled mounting frame accidentally falls over with a cistern and a protective wall on the site. Preferably, the protective wall consists of a dimensionally stable plastic to which the flexible seal is attached.

Furthermore, the leakage protection preferably additionally includes a leakage protection cover which is attached to the protective wall and which is suitable for a flush pipe which is usual per se from the cistern to the WC. Preferably, this leakage protection cover is dimensionally stable and also preferably made of plastic. It is tightly attached to the bulkhead.

At an opposite end of the enclosure, namely where the WC is connected, an analogous further flexible seal is preferably provided. This can be tightly attached in a similar manner as previously explained for sealing the transition to the room wall or even at the toilet connection itself. The first alternative is preferred.

The leakage protection enclosure of the flushing pipe can also serve as a leakage water line and in the bulkhead collected leakage water (or such leak from a flush pipe) lead to its front end. There, the leakage water can escape to the outside, either (preferably) on the floor of the affected room or in the toilet bowl.

The leakage water can z. B. be continued in a drainage channel which extends between the back of the connected toilets and a room wall front, z. B. in an already provided there soundproofing plate in the form of a depression therein. Through this drainage channel, the leakage water then continue from the end of the leakage protection enclosure of the flushing pipe and z. B. reach the floor of the room. There, the water is discovered as a puddle and gives reason to correct the leak, or replace the leaked part.

If the protective wall is dimensionally stable, a fastening element for the cistern can be molded, preferably in the side walls, for. B. as rails for inserting the cistern from the front. These rails may also have locking devices that match the corresponding counterparts on the cistern (mounted there or molded) fit.

Further, the protective wall is preferably designed to be disposed between the cistern and a mounting frame for supporting the cistern and the WC in the room wall (and not outside the mounting frame). Of course, the protective wall can project beyond the mounting frame, in particular in the direction perpendicular to the wall plane; but preferably does not surround the mounting frame from the outside.

According to a further embodiment, the flexible seal is taken before installation in the front opening of the protective wall and thus protected to a certain extent, but at least not in the way of installation. It will then be turned out of the opening at the right time. This is particularly true in connection with a Bauschutzdeckel that covers the embarked seal before mounting in the front opening and preferably the entire front opening and is removed later.

The leakage protection according to the invention may preferably be provided in a set with a suitable concealed cistern and particularly preferably together with an already matching front cover plate for the front opening of the protective wall. The cover plate can then z. B. overflowed or otherwise designed in a similar form as the rest of the room wall. Of course, the cover plate can be a common inspection opening in the area of flushing operation buttons included. Particularly preferably, the leakage protection and the cistern (and preferably also the cover plate) are provided in the set with a mounting frame and in turn preferably pre-assembled therein. The latter is not mandatory for the cover plate; instead, z. B. the building protection preassembled.

In a further embodiment of the invention, the risk of leakage is further reduced by a rigid and non-detachable, preferably one-piece connection of the flushing pipe with the cistern. In this case, the front opening of the protective wall and the passage opening for the flushing pipe or the Leckageschutzumhüllung it be designed so that the cistern with the flush pipe advance into the front of the opening and then can bring with a tilting completely into this opening. The last step of the assembly movement can then z. B. be a postponement on the already mentioned molded rails.

In particular, this also affects a later disassembly. In this case, then the cistern with its upper part ahead (possibly pushed out of a rail and) are tilted out of the mounting wall, to then be pulled out with the flush pipe last.

The disassembly is especially in connection with the leakage protection of interest because the occurrence of a leak then the need for repair or replacement. In this connection, an already mentioned front cover plate of the opening of the protective wall can then be dismantled, for example by loosening corresponding fitting parts. The opening then preferably has a sufficient size to remove the entire cistern and to use a new or repaired can. This of course applies regardless of the question of the fixed connection with the flushing pipe and the question of whether the leakage protection also has an enclosure for the flushing pipe.

If in the manner already described, the flexible seal in the folded state with wall cladding panels, z. B. tiles, is glued over, z. As a narrow silicone joint is a limit between this Befliesung and the cover plate or a cover on the cover plate. The covering on the cover plate could also be a Befliesung (or otherwise identical continuation of the remaining wall paneling). Then, when the silicone joint or other partition is opened, the cover plate can be removed and the cistern repaired or replaced.

In this connection, it may also be of interest to arrange the dividing line between the wall covering part on the cover plate (which is to be removed) and the remaining wall covering or also the dividing line between the cover plate itself (if left unclad) and the remaining wall covering, that a predetermined by the wall panel pattern, z. B. a tile grid, does not have to be interrupted in a disturbing way. In particular, z. For example, if the tiling extends across the cover plate, the silicone joint is between continuous tile plates, slightly outside the format of the actual cover plate.

If such a cover plate is to be removed later, it may be of great advantage to use adapted fasteners.

Fig. 1

zeigt in perspektivischer Darstellung eine Leckageschutzhülle für einen Unterputzspülkasten mit Spülrohr;

Fig. 2

zeigt die Leckageschutzhülle aus Fig. 1 in einem Montagegestell montiert;

Fig. 3

zeigt die Struktur aus Fig. 2, wobei eine Foliendichtung nach innen umgeschlagen und unter einem Bauschutzdeckel abgedeckt ist und das Montagegestell in Vertikalständern einer Trockenbauwand eingesetzt ist;

Fig. 4

zeigt im Vergleich zur Fig. 3 einen weitergehenden Installationsschritt, nämlich mit angebrachter Verkleidung der Leichtbauwand und abgenommenem Bauschutzdeckel;

Fig. 5

zeigt die Situation aus Fig. 4 mit umgeschlagener Foliendichtung;

Fig. 6

zeigt die Situation aus Fig. 5 zusammen mit einer Abdeckplatte und entsprechenden Beschlagteilen zur Befestigung derselben;

Fig. 7

zeigt die Situation aus Fig. 6 mit montierter Abdeckplatte und Befliesung;

Fig. 8

zeigt die Situation aus Fig. 7 mit einer montierten Schallschutzplatte im Bereich des WC-Anschlusses;

Fig. 9

zeigt die Situation aus Fig. 8 mit montiertem WC und mit montierter Betätigungsplatte;

Fig. 10

zeigt eine spätere Demontage der Abdeckplatte und einen Ausbau des Spülkastens ausgehend von der Situation in Fig. 9

Fig. 11

zeigt eines der Beschlagteile im montierten Zustand in perspektivischer Ansicht;

Fig. 12

zeigt eine Schnittansicht zur Fig. 7 in Perspektive von oben;

Fig. 13

zeigt eine Draufsicht analog zur Fig. 8, aber mit veränderter Verstellung.

The invention will now be described by way of example by way of example, wherein also the fastening means are considered.

Fig. 1

shows a perspective view of a leakage protection cover for a concealed cistern with flushing pipe;

Fig. 2

shows the leakage protection cover Fig. 1 mounted in a mounting frame;

Fig. 3

shows the structure Fig. 2 wherein a film seal is turned inside and covered under a Bauschutzdeckel and the mounting frame is used in vertical uprights of a drywall;

Fig. 4

shows in comparison to Fig. 3 a further installation step, namely with attached fairing of the lightweight wall and removed Bauschutzdeckel;

Fig. 5

shows the situation Fig. 4 with folded foil seal;

Fig. 6

shows the situation Fig. 5 together with a cover plate and corresponding fitting parts for fixing the same;

Fig. 7

shows the situation Fig. 6 with mounted cover plate and Befliesung;

Fig. 8

shows the situation Fig. 7 with a mounted soundproofing plate in the area of the WC connection;

Fig. 9

shows the situation Fig. 8 with mounted WC and with mounted actuator plate;

Fig. 10

shows a later disassembly of the cover plate and a removal of the cistern from the situation in Fig. 9

Fig. 11

shows one of the fitting parts in the mounted state in a perspective view;

Fig. 12

shows a sectional view of Fig. 7 in perspective from above;

Fig. 13

shows a plan view analogous to Fig. 8 but with altered adjustment.

Fig. 1 shows a substantially box-like leakage protection cover 1 for a concealed cistern, the open front in Fig. 1 pointing forward to the right. This box-like casing 1 is formed from a dimensionally stable solid plastic as a protective wall and tightly connected to a flexible film material 2 completely surrounding the opening in the front side. Fig. 1 indicates suggestively that adjoins the box-like leakage protection 1 on its underside another and tightly connected to it leakage protection enclosure, which is provided for a flushing pipe to be included flushing cistern. This leakage protection cover bears the reference numeral 3 and terminates in the same front plane as the film seal 2 with a further annular film seal 4th

Further, molded on the inside of the leakage protection and substantially horizontally extending rails 5 are provided, one of which from the outside and one can be seen from the inside and serve for later insertion of the cistern.

Fig. 1 shows the leakage protection for a better understanding of the following figures, in a state that only starting Fig. 5 is present, ie with folded to the sides of film seals 2 and 4. The delivery state is based on Fig. 3 and 4 explained.

Fig. 2 shows the leakage protection Fig. 1 with a built-in concealed cistern 6 and a mounting frame 7 for mounting the cistern in and a toilet in front of a wall. In this case, the leakage protection 1 is provided between the cistern 6 and the mounting frame 7. Further penetrates the downwardly facing end of the leakage protection cover 3 of the flushing pipe a transverse support of the mounting frame 7, so that the film seal 4 is located in front of this carrier. Also, this condition corresponds to the following description only the Fig. 5 and not the delivery condition.

Fig. 3 shows the mounting frame 7 with the leakage protection Fig. 1 mounted between vertical uprights 8 for a lightweight wall. This assembly is conventional with respect to the conventional mounting frame 7. The assembled unit additionally has a building protection plate 9 on the front, which in the Fig. 1 and 2 recognizable opening of the leakage protection 1 largely covers. In this case, the film seals 2 and 4 are taken (and the film seal 4 is in turn also protected by an essay). This corresponds to the delivery condition; in Fig. 3 Thus, the delivered and preassembled ensemble of mounting frame 7, leakage protection 1 and concealed cistern 6 is mounted with Bauschutzplatte 9.

In this assembled state, the lightweight wall 10 can then be mounted on the vertical supports 8, such as Fig. 4 shows, with the protective wall 9 serves as a reference line or stop. After their removal then the film seals 2 and 4 turned over, like Fig. 5 shows, and can be glued, for example, on the lightweight wall 10.

Fig. 6 shows next to this situation on the lightweight wall 10 leaning to the opening in a matching cover plate 11, are attached to the fitting parts 12, based on the Fig. 11 to 13 be explained in more detail.

Fig. 7 shows how after mounting the cover plate 11 in the opening, the lightweight wall 10 has been tiled including the now flush with it cover plate 11. The tile layer has the reference numeral 13. It is provided on the outer contour of the cover plate 11 in the tiles a slot, in this example, the upper slot to a tile joint fits, but not the remaining three slots. These are realized by appropriate cuts in the tiles. All slots are then grouted with silicone. The tiles 13 are also glued to the folded film seals 2 and 4.

Fig. 8 shows that around the Spülrohrstutzen and the drain pipe of the not yet visible toilets around a soundproofing plate 14 has been applied. This is conventional apart from a detail in itself. This detail is one of the Spülrohrstutzen from obliquely downwards (in Fig. 8 towards the bottom left) running gutter or depression 15.

In Fig. 9 the installation is then completed by a WC 16 and a conventional actuator plate 17 are mounted. If, in this situation, leaking should occur on the cistern 6 or its flushing pipe, the box-like leakage protection 1 or the corresponding enclosure 3 leads the corresponding leakage water in the case shown here in any case through the enclosure 3 of the flushing pipe to the flushing pipe outlet and allows it to drain through the channel 15. The water is thus visible next to the toilet 16 on the floor as a puddle.

Even if the water in another embodiment without Spülrohrumhüllung due to a Spülkastenlecks forward to the front opening of the leakage protection 1 should arrive, it would ultimately go without any problems on the floor of the bathroom, because the front of the lightweight wall 10 is usually designed waterproof.

In any case, the user recognizes the presence of a leak. The user can then initiate a repair. The craftsman cuts open the silicone joint, which separates the tiles from the cover plate 9 from the rest, and applies, for example, a suction cup on the tiles on the cover plate 9. After the disassembly of the actuator plate 17 to be described, the cover plate can now be pulled out 12 forward due to the special design of the fitting parts 12, so that the cistern 6 is accessible. This, in turn, can now be removed, including the flush pipe attached to it, by a tilting movement, which in Fig. 10 is indicated. He is conversely replaced by an intact cistern 9, whereupon the cover plate 11 is attached again, the silicone joint created again and the actuator plate 17 is mounted.

The fittings 12, already in relation to Fig. 6 have been mentioned and shown there on the cover plate 11 pointing forwards with the back, are described below with reference to Fig. 11 to 13 explained in more detail. The figures show a left upper fitting part, which corresponds to the left lower fitting part identical. The right-hand fittings are mirror-symmetrical (or simply mounted in reverse).

Fig. 11 shows the fitting 12 mounted on the cover plate 11 on the one hand and on the mounting frame 7, namely a vertical strut thereof, on the other. The vertical strut 7 is, as already based Fig. 3 explained mounted on a vertical stand 8 of the drywall. In the Fig. 11 to 13 This drywall 10 is already tiled, as the reference numeral 13 shows.

The fitting 12 has mounted on the mounting frame 7 sheet metal part 20, on the one hand shows a U-shape and on the other hand, a from a Leg end of arm extending at right angles to the side. The other leg is screwed in the manner indicated via a screw on the mounting frame 7.

The mentioned arm of the part 20 thus runs horizontally and in the plane of the cover plate 11. It contains an approximately rectangular notch into which a spring plate 21 is inserted. This spring plate 21 can be mainly based on the FIGS. 11 and 12 recognize well and has on the one hand a flat basic structure on the cover plate 11 facing away from the arm of the part 20, which bears against this arm. It is held by from this basic structure to the cover plate 11 at right angles projecting and then bent back at right angles outward claws, which include a reveal wall of the mentioned section in the arm of the part 20. The spring plate 21 can thus be pushed, for example, from above into this section and lock it. Further stand on the other side of the flat basic structure of the spring plate 21 V-shaped and with the respective tip facing each other claws 22 from. In a direction perpendicular to the wall plane approximately in line with the gap between these claws 22, but slightly enlarged, there is a right-angled hole through the flat basic structure of the spring plate 21, through which hole a threaded shank of a screw 23 protrudes.

This screw 23 passes through a further part 24 of the fitting part 12, which in turn is attached to the cover plate 11. This attachment could be done by a simple screwing from the inside (not shown). In the illustrated embodiment, however, the screw 23 passes through the cover plate 11 so that the screw head is mounted from the outside to the cover plate 11 and vice versa a sleeve 25 with a lying on the cover plate 11 side facing away from the part 24 on a shaft portion of the screw 23 with reduced diameter, so that the cover plate 11 and the part 24 are clamped between this flange of the sleeve 25 and the screw head. The small arm of the part 24, which is visible at right angles in the figures to the left, secures this in addition.

The further from the cover plate 11 part of the shaft of the screw 23 has an external thread into which the V-shaped claws 22 engage. If you the cover plate 11 according to Fig. 6 mounted, the part 20 is located on the mounting frame 7 and is the part 24 with the screw 23 on the cover plate 11. The cover plate 11 facing away from the shaft of the screw 23 has an external thread and is thus between the V-shaped parts 22nd pressed the spring plate 21, which give slightly elastic. So you can press in a latching or "ratcheting" movement under force the cover plate in the direction of the wall, the respective shafts of the screws 23 of all fasteners 12 engage accordingly. In turn, in a given position, turning the head of the screw 23 can cause a fine adjustment, because then the spring plate 21 works with its claws 22 like a nut.

The figures also show a second screw 26, which passes through a further, likewise cover plate-parallel portion of the part 24, wherein this portion is slightly spaced from the cover plate inwardly. This screw is held by a further sleeve 27 in the part 24, which looks like the sleeve 25 in the figures, but has an internal thread for engaging an external thread of the screw 26. The screw 26 can thus be adjusted in the direction perpendicular to the wall by operating its outwardly facing (hexagon socket) head. As a result, the inner flat end of the screw 26 shifts between an outer adjustment position according to Fig. 12 (There as a sectional view), in which this end is aligned with the corresponding surface of the flange of the sleeve 27, and a further inner position according to Fig. 13 (There in plan view, partly cut), in which the outwardly facing end face of the head of the screw 26 is aligned with the corresponding end face of the sleeve 27. The inwardly facing end of the screw 26 is provided for abutment against the extreme end of the arm of the part 20, so that this end of the arm together with the screw 26, the sleeve 27 and the holder in the part 24 serves as an adjustable stop element. This can be done by a in the FIGS. 11 and 12 represented opening in the cover plate 11 are actuated as well as the screw 23 through a further opening.

So if in the already described insertion of the threaded shaft of the screw 23, the screw 26 has been set meaningful, for example so that the cover is probably a little too far inserted until the screw 26 strikes, then no very far-reaching fine adjustment is more through Actuating the screw 23 necessary. But if, for example, by something unfortunate default of the screw 26 has come too far out into a stop, of course, the stopper can be slightly adjusted so that then make the correct fine adjustment.

In particular, it is thus possible with one or a few fitting part types to take account of different wall thicknesses, cf. to the Fig. 12 and 13 together. In Fig. 13 is between the stand 8 of the lightweight wall and the support 7 of the mounting frame on the one hand and on the other hand, a cover plate 11 corresponding wall panel 30, a reinforcing layer 31 is provided, which can be compensated by the different setting of the screws 23 and 26.

It also follows from this description that the screw 23 with the spring plate 21 and the respective holders on the one hand forms a latching fastening element and on the other hand an adjusting device.

But you can also easily imagine that the screw 23 is replaced by an analogously constructed bolt, but instead of a male threaded portion has a series of parallel grooves (so to speak with thread pitch 0). Then the adjustment would be realized in example otherwise identical design by the screw 26, because this could serve after the fine adjustment for striking. The V-shaped claws 22 of the spring plate 21 would slip from groove to groove and engage.

Regardless, there is a very significant advantage of the fasteners in the solubility. The screw 23 can be easily withdrawn from the engagement with the spring plate 21 with its external thread or groove portion namely with some effort. If no handle is mounted or a hole through which you can reach through with a tool or a finger, so you can easily put on the tiles or other cover the cover plate 11 and a suction cup. This then allows the later revision and / or the replacement of parts according to Fig. 10 ,

In the Fig. 11 to 13 the Befliesung 13 is marked, which covers the operating options for the screw heads. Here, therefore, it is assumed that when mounting the cover plate 11 a one-time adjustment is made and then maintained. Of course, this is not absolutely necessary and in principle it is also possible to maintain access through the infiltration.

By the way one recognizes that the gap between two tiles in the Fig. 11 to 13 analogous to the Fig. 7 to 9 does not fit exactly to the edge of the cover plate 11 and therefore a silicone joint 32 is provided within a tile, which is cut to it. Alternatively, one could but stick to the left overlapping part of the tile 13 only on the cover plate 11 and not on the left edge (and analogous to other edges), so that the silicone joint 32 does not require a section through the tile, but Fugenkitt in an already provided Fugue replaced.

Claims (16)

Leakage protection for a flush-mounted water dispenser (6), in particular a concealed cistern (6) for mounting in a room wall (10), a concealed flush valve, a concealed fitting or a flush-mounted mixing valve, with
a front wall forming an opening and the flush-mounted water dispenser (6) laterally and rear surrounding protective wall (1) for receiving the flush-mounted water dispenser (6) and for collecting any leakage water from the flush-mounted water dispenser (6) and
a flexible film seal (2) provided on the protective wall (1), which is designed to seal the transition of the protective wall (1) to a front side of the room wall (10) surrounding the opening, and to one of the front opening in the Protective wall (1) can be brought outward position. Leakage protection according to claim 1, wherein the protective wall (1) is dimensionally stable and preferably ends at the front perpendicular to the room wall (10), wherein the film seal (2) during installation allows adaptation to the wall side of the room wall (10). Leakage protection according to claim 1 or 2, for a concealed cistern (6) or a concealed flush valve, which to the protective wall (1) leakproof leakage protection cover (3) attached to the cistern (6) or the flush valve and from this to a toilet (16 ) has leading flush pipe. Leakage protection according to claim 3, wherein at a front end of the sheath (3) of the flushing pipe, a further flexible seal (4) is provided, which is designed for sealing the end against a room wall part or a WC (16). Leakage protection according to claim 3 or 4, wherein the sheath (3) of the flushing pipe is adapted to remove any leakage water from the protective wall (1) and to let out at a front end of the sheath (3) of the flushing pipe to the outside. Leakage protection according to claim 2 for a concealed cistern (6), optionally in conjunction with another of claims 3 to 5, in which the protective wall (1) has molded fastening elements (5) for the cistern (6), preferably rails (5) for insertion the cistern (6). Leakage protection according to one of the preceding claims, which is designed for installation in a flush mounting frame (7) for the flush-mounted water dispenser (6) and a toilet (16), wherein the protective wall (1) in the assembled state between the flush-mounted water dispenser (6) and the mounting frame (7) is provided. Leakage protection according to one of the preceding claims, in which the flexible seal (2) on the protective wall (1) is hammered into the front opening of the protective wall (1) prior to assembly and adapted to be turned over during assembly. Leakage protection according to claim 9, having a protective cover (9) mounted on the front opening of the protective wall (1), which covers the inserted flexible seal (2) before assembly. Leakage protection according to one of the preceding claims with a matching flush-mounted water dispenser (6) and preferably with a front cover plate (11) which matches the front opening of the protective wall (1). Leakage protection according to claim 10, wherein the flush-mounted water dispenser (6) is a cistern (6) and a flush pipe for connection to a toilet (16) is rigidly and permanently provided and the cistern (6) with its top in front on the front Tilted out opening and can be pulled out of the protective wall (1) last with the flushing pipe. Use of a leakage protection according to one of the preceding claims for mounting with the flush-mounted water dispenser (6). Use according to claim 11 of a leakage protection according to claim 8, also in connection with claim 9 or 10, wherein the flexible gasket (2) is glued over in the folded state with wall cladding panels (13). Use according to claim 12 or 13 of a leakage protection according to claim 3, optionally in connection with a further one of claims 4 to 11, wherein between a rear side of a flush-mounted water dispenser (6), namely a cistern (6) or a flush valve connected WCs (16) and a room wall front side behind a drainage channel (15) for emerging from the sheath (3) of the flushing pipe any leakage water is provided. Use according to claim 14, wherein the drainage channel (15) is provided in a front side of a soundproofing plate (14) as a recess. Use of a cistern (6) for mounting in a leakage protection according to one of claims 1 to 11, wherein at the cistern (6) a flushing pipe for connection to a toilet (16) is rigidly and permanently provided and the cistern (6) with the Rinse tube ahead through the front opening of the protective wall (1) inserted into the protective wall (1) and then with a tilting movement about a horizontal axis in the protective wall (1) is arranged.

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