Toilet installation and kit comprising a trapdoor

Abstract

The invention relates to a wall-hung toilet installation (1) comprising: - a frame (2) coupled to a supporting structure, and located behind a wall (10); - a toilet bowl (3) located in front of the wall (10) and suspended from the frame (2) through the wall (10); - a water tank (4) mounted on the frame; - a filling system (5) and a flushing mechanism (6) mounted behind the wall (10), the installation (1) comprising at least one hatch (7) provided in the wall (10) for accessing connection means (52) of the filling system (5) and coupling means (61) of the flushing mechanism (6), located outside the tank (4).

Description

[0001] The field of invention is that of the design and manufacture of sanitary equipment.

[0002] More specifically, the invention relates to a toilet installation, advantageously suspended, and a kit enabling the realization of this installation.

[0003] It is known from toilets whose bowl is directly placed and fixed on a load-bearing floor which forms a load-bearing structure.

[0004] These toilets consist of a cistern mounted on the bowl, a flushing mechanism that seals off a water outlet from the cistern to the bowl, and a filling system that typically includes a mechanism to stop filling once a predetermined level is reached. The cistern has a lid providing access to the water storage chamber, which typically houses the filling system and the mechanism to stop filling once a predetermined level is reached (for example, a float valve).

[0005] In the field of invention, it is also known as so-called "suspended" toilets.

[0006] A wall-hung toilet (or suspended WC) includes a frame attached to a load-bearing structure and located behind a wall, as well as a bowl fixed to the frame through the wall, for example by means of a threaded rod.

[0007] Wall-hung toilets allow only the bowl and a flushing mechanism to be visible, enabling the bowl to be cleaned.

[0008] Indeed, the principle of wall-hung toilets consists of positioning behind the wall, with the frame, a water tank intended to form the flush, the system for filling the water tank from a water supply, as well as the flushing mechanism from the tank into the bowl.

[0009] The partition separating the toilet bowl from the frame is traditionally a fixed panel not intended to be removed for maintenance of the mechanisms of wall-hung toilets. For example, a fixed partition might be a plasterboard panel attached to a metal frame.

[0010] Like wall-hung toilets, the filling system and flushing mechanism are installed inside the cistern, which is mounted on the frame. For this purpose, the cistern of a wall-hung toilet has an opening at the top to allow access to the various components, and the wall also has an opening to match the cistern. These openings are typically covered by a flush control plate.

[0011] During maintenance on a wall-hung toilet, an operator must remove the flush plate to access the filling system and the flushing mechanism. The openings in the tank and the wall are designed to allow for the assembly, disassembly, insertion, and removal of the aforementioned components of the wall-hung toilet. These components are also designed to be assembled and disassembled from inside the tank.

[0012] These wall-hung toilets have several disadvantages.

[0013] Firstly, the positioning of the toilet flushing mechanisms and the filling system behind a wall can have an anxiety-inducing effect for users of this type of system because a potential leak might not be visible and / or easily accessible for repair.

[0014] Also, accessing the inside of the tank through the openings to work on the components of the wall-hung toilet can be described as difficult and requires working blindly.

[0015] Indeed, once a person has inserted their hand or hands inside the tank through the openings, it is not or hardly possible to observe the components on which they are working.

[0016] The invention aims in particular to overcome these drawbacks of the prior art.

[0017] More specifically, the invention aims to provide a toilet installation that facilitates access to and maintenance of its components integrated behind a wall.

[0018] The invention also aims to provide such an installation which reduces the anxiety associated with using the toilet, with regard to the potential consequences of a leak.

[0019] These objectives, as well as others that will emerge subsequently, are achieved thanks to the invention, which relates to a toilet installation comprising: a load-bearing structure located behind a wall; a basin located in front of the wall; a water tank supported by the load-bearing structure and located behind the wall; a tank filling system from a water inlet, including a mechanism for stopping filling from a predetermined level; means for connecting the filling system to the tank; a gravity-fed tank flushing mechanism; at least one access hatch in the wall; means for coupling the flushing mechanism to the tank; means for controlling the flushing mechanism; the filling system and the flushing mechanism being mounted behind the wall, characterized in that: the filling system and the flushing mechanism are located at least partially outside the tank; the means for connecting the filling system are located outside the tank;The coupling means for the flushing mechanism are located outside the tank; one or more access panels are positioned on the wall to allow access to the connection means for the filling system and to the coupling means for the flushing mechanism.

[0020] Thanks to the installation according to the invention, it is possible to access the filling system and the flushing mechanism easily through the hatch.

[0021] Thanks to the positions of the connection and coupling means outside the tank, the assembly and disassembly of the filling system and the flushing mechanism can be carried out from outside the tank, from the access provided by the hatch.

[0022] Of course, this hatch is then distinct from the openings in the wall and the tank according to the prior art (openings positioned only opposite each other and directly attached to each other) which only form an access to the inside of the tank.

[0023] Furthermore, through the access hatch of the installation according to the invention, it is possible to see the filling system and the flushing mechanism, which are located at least partially outside the tank, from the space behind the wall, outside the tank. Thus, for example, it is possible to check for the absence of leaks external to the tank.

[0024] The installation according to the invention thus facilitates intervention on its filling system and its flushing mechanism in that the operator intervening on this mechanism can directly observe his manipulations on the components of the toilet.

[0025] According to a preferred embodiment, the installation includes a frame coupled to the load-bearing structure and located behind the wall, the bowl being suspended from the frame through the wall, and the tank being mounted on the frame.

[0026] The installation is therefore a wall-hung toilet installation.

[0027] Advantageously, the filling system and a closing element of the flushing mechanism are underlying the tank.

[0028] This positioning simplifies the design of the installation components and facilitates intervention on these components.

[0029] Indeed, the hatch is then located above the bowl, and below the tank, at a height easily accessible for maintenance work.

[0030] According to an advantageous feature, the filling system includes a water supply shut-off valve located outside the tank behind at least one hatch provided in the wall.

[0031] In this way, it is possible to stop the water supply to the tank, for example in the event of a leak in the flushing system, without having to put your hand inside the tank.

[0032] Advantageously, the filling stop mechanism is preferably a weighing tap.

[0033] In this way, the tap makes it possible to stop the filling of the water tank thanks to the increase in the mass of water contained in the tank as it is being filled.

[0034] Such a tap can be located outside the tank, which forms a particularly advantageous solution within the framework of the invention.

[0035] According to a preferred feature, the installation includes a drain pipe from an overflow of the tank into a water passage opening into the toilet bowl.

[0036] Consequently, the tank will not overflow in the event of a failure of the fill stop mechanism. This is because the drain pipe allows excess water to flow into the toilet bowl in the event of such a failure of the fill stop mechanism.

[0037] Preferably, the water passage is the one used by the water from the tank during a toilet flush.

[0038] If an excess of water is emptied from the tank, a person may realize this because water would then flow into the toilet bowl.

[0039] This also simplifies the design of the installation because a single water passage allows both the overflow drainage water and the flush water to flow into the toilet bowl.

[0040] According to a first advantageous solution, the tank comprises: a main part intended for storing water; a drainage extension, advantageously made of the same material as the main part; the drain extension extending from an upper end of the main part of the tank, to near a lower end of the main part of the tank to position a drain outlet; and the drain pipe is connected to the drain outlet and the water passage.

[0041] Intervention on the drain pipe is therefore particularly easy since it is located below the tank, or near a lower end of the tank.

[0042] According to a second solution, the tank has a water inlet extending from the tank to the outside of the tank, the connection means linking the filling system to the water inlet of the tank from the outside of the tank, and the tank includes: a main part intended for storing water; a water inlet extension, advantageously made of material from the main part; The water inlet extension, positioning the water inlet near a lower end of the main part of the drain tank, is connected to the drain outlet and the water passage.

[0043] The tank thus features a simplified design avoiding the risk of leakage between the water inlet and the upper part of the tank because the water inlet extension is made of materials with the main part of the tank.

[0044] For the first solution above, even more advantageously, the tank has a water inlet extending from the tank to the outside of the tank, the connection means connecting the filling system to the water inlet of the tank from the outside of the tank, and the tank includes a water inlet extension from matter with the main part, and positioning the water inlet near a lower end of the main part of the tank.

[0045] The tank thus features a design that minimizes the risk of leaks and allows the water inlet and drain outlet to be positioned near or below a lower end of the main part of the tank.

[0046] The invention also relates to a kit for installing a wall-hung toilet, comprising: a frame intended to be fixed to a load-bearing structure, and intended to allow the suspension of a toilet bowl through a wall; a water tank intended to be mounted on the frame; a tank filling system from a water supply, including a mechanism for stopping filling from a predetermined level; a gravity-flow tank flushing mechanism; characterized in that: The flushing mechanism includes means for coupling to the tank from outside the tank, the flushing mechanism being designed to be located at least partially outside the tank; the filling system includes means for connecting to the tank from outside the tank, the filling system being designed to be located at least partially outside the tank.

[0047] The kit according to the invention makes it possible to carry out a wall-hung toilet installation which has the advantages of the aforementioned toilet installation.

[0048] Other features and advantages of the invention will become more apparent upon reading the following description of various preferred embodiments of the invention, given by way of illustrative and non-limiting examples, and the accompanying drawings, among which: there figure 1 is a schematic front-view representation of an installation according to the invention; the figure 2 is a schematic front-view representation of an installation according to the invention in which a cover plate of a hatch has been removed to access components of the wall-hung toilet installation; the figure 3 is a schematic representation from the rear of an installation according to the invention; the figure 4is a schematic, front-view perspective representation of a frame, a tank, a tank filling system, and a flushing mechanism of a wall-hung toilet installation according to the invention; figure 5 is a schematic representation, viewed from above, of an installation according to the invention; the figure 6 is a schematic representation from a rear perspective of a tank, an installation, and a kit according to the invention; the figure 7 is a partial schematic perspective representation of an installation according to another embodiment, without a frame; the figure 8 is a schematic front view representation of an installation according to the invention in which a control plate is offset.

[0049] With reference to figures 1 to 5 A toilet installation according to the invention is shown.

[0050] Toilet facility 1 includes: a load-bearing structure; a water tank 4; a tank filling system 5; means for connecting the tank filling system 5 to the tank 4; a gravity-flow flushing mechanism 6 for the tank 4; means for coupling the flushing mechanism 6 to the tank 4; means for controlling the flushing mechanism; a wall 10; a bowl 3.

[0051] With reference to the method of implementation of the figure 7 , tank 4 is supported by the load-bearing structure which is a load-bearing wall with a provision to house components of installation 1. Tank 4 can be directly coupled to the load-bearing structure, for example using lag bolts.

[0052] According to the methods of implementation of figures 1 to 6 , this installation is more precisely a wall-hung toilet installation.

[0053] Installation 1 also includes a frame 2 coupled to the supporting structure.

[0054] The installation 1 of wall-hung toilets is obtained using a kit according to the invention, allowing the installation of a wall-hung toilet.

[0055] The kit includes: a frame 2; a water tank 4; a tank filling system 5; means for connecting the tank filling system 5 to the tank 4; a gravity-fed flushing mechanism 6 for the tank 4; means for coupling the flushing mechanism 6 to the tank 4; means for controlling the flushing mechanism;

[0056] The following description of the installation elements is applicable to the kit elements.

[0057] The load-bearing structure corresponds, for example, to a load-bearing floor, and / or a load-bearing wall, and is located behind wall 10.

[0058] Frame 2 is coupled to a load-bearing structure, and is located behind wall 10.

[0059] Basin 3 is located in front of wall 10.

[0060] According to the present embodiments, in which the installation 1 includes a frame 2, the frame 2 is coupled to the supporting structure, and the bowl 3 is suspended from the frame 2 through the wall 10.

[0061] Bowl 3 is intended to be connected to a water drain pipe 103.

[0062] With reference to the figure 5 More specifically, the wall 10 has a front face 101 and a rear face 102.

[0063] The basin 3 is thus located on the side of the front face 101 of the wall 10 while the supporting structure, and the frame 2 if applicable, are located on the side of the rear face 102 of the wall 10.

[0064] With reference to figures 3 to 5, the frame 2 comprises, according to this embodiment, two uprights 21, crossbars 22 connecting the two uprights 21, and feet 23 mounted height adjustable in the uprights 21.

[0065] Frame 2 may also include mounting arms 24 for suspending installation components.

[0066] As mentioned previously, frame 2 is coupled (or intended to be coupled) to a load-bearing structure.

[0067] For this purpose, frame 2 has holes, allowing it to be fixed to the supporting structure.

[0068] Lag screws can therefore be used by being inserted through the holes to fix the frame 2 into the supporting structure.

[0069] According to one envisaged embodiment, basin 3 rests on a load-bearing structure.

[0070] According to the embodiments shown on the figures, 1 , 2 , And 8, the bowl 3 is suspended from the frame 2 through the wall 10 by conventional means.

[0071] These conventional means can, for example, correspond to threaded rods screwed into the frame 2 and passing through the wall 10 to emerge from the side of the front face 101 of the wall 10.

[0072] The bowl 3 is then fitted onto the threaded rods and held in place by means of nuts screwed onto the threaded rods.

[0073] As can be seen on the figures 1 to 4 , the filling system 5 and the flushing mechanism 6 are mounted behind the wall 10.

[0074] More specifically, and with reference to Figures 1 , 2 , And 8 , installation 1 includes at least one hatch 7, and in this case a single hatch 7, which is provided in the wall 10.

[0075] This hatch 7 provides access to the filling system 5 and the flushing mechanism 6.

[0076] Indeed, the filling system 5 and the flushing mechanism 6 are located at least partially outside the tank 4.

[0077] This filling system 5 and the flushing mechanism 6 are indeed designed to be located at least partially outside the tank 1, and to be accessible from outside the tank 4, unlike the filling systems and flushing mechanisms of wall-hung toilets according to the prior art which are designed to be located inside a wall-hung toilet water tank, and to be accessible from inside the tank 4.

[0078] According to the embodiments shown, the filling system 5 and the flushing mechanism 6 are indeed designed to be located entirely outside the tank 1.

[0079] However, according to other envisaged embodiments, the filling system 5 and / or the flushing mechanism 6 may include a part that fits into the tank 1.

[0080] The hatch 7 also provides access to the connection means 52 of the filling system 5 and to the coupling means 61 of the flushing mechanism 6.

[0081] Consequently, the hatch(es) 7 are positioned on the wall 10 so as to allow access to the connection means 52 and the coupling means 61. In this case, the hatch 7 is positioned above the bowl 3.

[0082] Indeed, the connection means 52 and the coupling means 61 are located outside the tank 4.

[0083] The assembly and disassembly of the filling system 5 and the flushing mechanism 6, by means of the connection means 52 and the coupling means 61, is only possible from outside the tank 4, without requiring the insertion of a tool or a hand into the tank 4.

[0084] The water tank 4, the filling system 5, and the flushing mechanism 6 are described in more detail later.

[0085] As can be seen on the figures 3 to 5 , the water tank 4 is mounted on the frame 2. This water tank 4 is more specifically mounted between the two uprights 21, in an upper part of the frame 2. For example, the water tank 4 is mounted on the frame 2 using flanges.

[0086] With reference to figures 3 , 4 And 6 , the water reservoir 4 has a main part 41 intended for storing water.

[0087] This water reservoir is intended to supply the toilet flush, which is to be emptied into bowl 3.

[0088] The tank 4 includes a water discharge outlet 44 located on a lower face 404 of the tank 4, and more specifically of the main part 41 of the tank 4.

[0089] The water being flushed from reservoir 4 is thus evacuated through the water evacuation outlet 44.

[0090] In order to be able to be filled with water, the reservoir 4 has a water inlet 431.

[0091] As can be seen more specifically on the figures 3 And 6 , the reservoir 4 includes a water inlet extension 43 which came from material with the main part 41 of the reservoir 4.

[0092] This water inlet extension 43 positions the water inlet 431 near a lower end 412 of the main part 41 of the reservoir 4.

[0093] As detailed below, the filling system 5 connects to the water inlet 431.

[0094] The water supply extension 43 is intended to extend parallel to one of the uprights 21.

[0095] The water supply extension 43 extends more specifically along one of the uprights 21.

[0096] To prevent overflow of the tank 4 around the frame 2, on the rear face 102 side of the wall 10, the tank 4 also includes a drain extension 42.

[0097] This drain extension 42 came from the material with the main part 41.

[0098] The drain extension 42 extends from the upper end 411 of the main part 41 of the tank 4, to near the lower end 412 of the main part 41 of the tank 4.

[0099] More specifically, the drain extension 42 extends from the upper end 411 below the height to which the water inlet extension 43 extends from the main part 41 of the tank. This defines an overflow water level which is, for example, a minimum of 20 mm.

[0100] The drain extension 42 allows a drain outlet 421 to be positioned near the lower end 412 of the main part 41 of the tank 4.

[0101] The drain extension 42 is connected to the main part 41 at a height lower than that of the connection of the water supply extension 43 to the main part 41.

[0102] The drainage extension 42 is intended to extend parallel to one of the uprights 21 of the frame 2.

[0103] More specifically, the drain extension 42 extends along one of the uprights 21 of the frame 2.

[0104] Installation 1 also includes a drain pipe 81 from an overflow of the tank 4 into a water passage 82 opening into the bowl 3.

[0105] This water passage 82 is the one used by the water from reservoir 4 during a toilet flush.

[0106] The drain pipe 81 connects the drain outlet 421 to the water passage 82. The drain pipe 81 thus forms a fluidic communication between the drain outlet 421 and the water passage 82.

[0107] The design of the tank 4 thus allows the water outlet 44, the water inlet 431, and the drain outlet 421 to be positioned close to the lower end 412 of the main part 41 of the tank 4.

[0108] More specifically, the water discharge outlet 44, the water inlet 431, and the drain outlet 421 extend below the height of the lower face 404 of the tank 4 in the installation 1.

[0109] Relative to tank 4, the water discharge outlet 44, the water inlet 431, and the drain outlet 421 extend beyond the lower face 404 from the upper end 411 of the main part 41 of tank 4.

[0110] To avoid negative pressure in the tank 4 during a toilet flush, or air being drawn in through the drain pipe 81, the tank 4 is provided with a decompression means 45.

[0111] This decompression means 45 can simply take the form of an opening. This decompression means 45 can also incorporate a one-way valve to allow only air to be drawn in from the space outside the reservoir 4. The reservoir 4 can be defined as being open to the atmosphere.

[0112] This decompression means 45 is located on an upper face 405 of the main part 41 of the reservoir 4.

[0113] According to the present embodiment, the tank 4 includes a bottom opening extension 46 extending downwards from the lower face 404 of the main part 41 of the tank 4. This bottom extension 46 extends parallel to the water discharge outlet 44.

[0114] The function of this lower extension 46 is discussed below in relation to the filling system.

[0115] With reference to the figure 6 , the lower extension 46 and the water drain outlet 44 each have an external thread.

[0116] As mentioned previously, the filling system 5 is connected to the water inlet 431 of the tank 4.

[0117] The filling system 5 is connected in particular to the water inlet 431 of the tank 4 via the connection means 52.

[0118] These connection means 52 are designed to make a connection from outside the tank 4.

[0119] These connection means 52 include, for example, a nut screwed onto an external thread presented by the water inlet 431, which then has a tubular shape, and a seal compressed by the nut on the water inlet 431.

[0120] These means of connection 52 can also take the form of a fusion of material achieved by bonding.

[0121] The filling system 5 of tank 4 supplies water to tank 4.

[0122] More specifically, the filling system 5 of the tank 4 allows the tank 4 to be filled with water from a water inlet 50.

[0123] This filling system 5 includes a mechanism 51 for stopping filling from a predetermined level.

[0124] This stop mechanism 51 stops the filling of the tank 4 with water as soon as the predetermined level is reached.

[0125] According to the present embodiment, the filling stop mechanism 5 is a weighing valve 51.

[0126] This weighing tap 51 measures the weight of the water column located in the main part 41 of the tank 4 and stops the water supply as soon as a determined weight is reached, this predetermined weight then being correlated to the water level in the tank 4.

[0127] The weighing tap can for example use an elastically deformable membrane coupled end-to-end on the lower extension 46 opening of the tank 4. In this case, the mass of the water column above the membrane in the tank 4 elastically deforms the membrane and makes it possible to know the water level in the tank.

[0128] The weighing tap can also be designed to measure the weight of tank 4. In this case, tank 4 is mounted movably at a height relative to frame 2.

[0129] According to another possible embodiment, the filling shut-off mechanism 51 can be a float valve. In this case, the float is inserted into the main part 41 of the tank 4 through the lower extension 46.

[0130] In cases where the lower extension 46 is present and used, the connection means 52 also allow the stop mechanism 51 to be coupled to the lower extension 45.

[0131] The connection means 52 then include, for example, a nut screwed onto an external thread presented by the lower extension 46.

[0132] Alternatively, the filling stop mechanism 51 can be an electronic tap measuring the volume of water used to supply the tank 4 and stopping the water supply as soon as a predetermined volume has been sent into the tank 4.

[0133] According to yet another alternative, the filling stop mechanism 5 can be a water detector designed to detect a water drain in the drain pipe 81 to stop the water supply to the tank 4.

[0134] The filling system 5 also includes a water supply tap 52.

[0135] This supply shut-off valve 53 allows, in a first position, the water supply to be allowed, and in a second position, the water supply to be stopped.

[0136] This supply shut-off valve 53 is located outside the tank 4. This supply shut-off valve 53 is advantageously located behind the hatch 7 provided in the wall 10.

[0137] As can be seen, the filling system 5 includes a supply pipe 54 extending from the supply shut-off valve 53 to the water inlet 431 to establish fluid communication. The connecting means 52 thus allow the supply pipe 54 to be connected to the water inlet 431.

[0138] The flushing mechanism 6 is connected to the water outlet 44 of the tank 4 and allows fluid communication, during a flush, with the water passage 82 which is intended to empty into the bowl 3.

[0139] This toilet flushing mechanism 6, for example, takes the form of a housing equipped with a valve that closes off a pipe in the housing. In this case, the toilet flushing mechanism 6 is located outside the tank 4.

[0140] According to another conceivable embodiment, the flushing mechanism 6 can be partially located in the tank 4. In this case, the flushing mechanism is designed to be partially inserted into the water tank 4 from the space external to the tank 4 through the water outlet 44.

[0141] The coupling means 61 are located outside the tank 4. More precisely, these coupling means 61 are accessible and manipulable from outside the tank 4.

[0142] These coupling means 61 include, for example, a nut designed to be screwed onto the external thread of the water outlet 44, and a seal intended to be compressed by the nut onto the water outlet 44.

[0143] As can be seen in the figures, the filling system 5 and at least one closing element, for example a flapper, of the flushing mechanism 6 are underlying the tank 4. In this case, the flushing mechanism 6 is underlying the tank 4.

[0144] The hatch 7 fitted in the wall 10 allows access below the tank 4 to the filling system 5 to the flushing mechanism 6 during an intervention.

[0145] The various components underlying tank 4 are thus mounted in the installation from the outside of tank 4.

[0146] Maintenance therefore does not require blindly plunging hands inside tank 4, unlike the previous method.

[0147] As mentioned previously, control devices allow a toilet flush to be triggered.

[0148] With reference to Figures 1 And 2 , And 8The control means include a control plate 9 equipped with an actuation button 91.

[0149] This actuation button 91 allows the flushing mechanism 6 to be activated.

[0150] The control mechanism can, for example, be a cable mechanism, a pneumatic mechanism, a radio mechanism and / or a contactless mechanism.

[0151] Unlike prior art, the control plate 9 does not form an access hatch inside the tank. In other words, the control plate 9 is separate from the hatch 7.

[0152] The hatch 7 is formed by an opening 70 made in the wall 10 and includes a cover plate 71 intended to cover the opening 70.

[0153] The cover plate 71 is advantageously magnetized to facilitate the opening and closing of the hatch.

[0154] The hatch 7 is also provided with centering means to ensure the relative positioning of the cover plate 71 with respect to the opening 70.

[0155] Hatch 7 provides access: to the filling system 5; to the connection means 52 of the filling system 5; to the flushing mechanism 6; to the coupling means 61 of the flushing mechanism 6, for their assembly, disassembly, or maintenance.

Claims

1. Toilet installation (1) comprising: - a supporting structure located behind a wall (10); - a toilet bowl (3) located in front of the wall (10); - a water tank (4) supported by the supporting structure and located behind the wall (10); - a filling system (5) for the tank (4) from a water supply (50), including a mechanism for stopping filling from a predetermined level; - means for connecting the filling system (5) to the tank (4); - a gravity-fed flushing mechanism (6) for the tank (4); - at least one access panel (7) provided in the wall (10); - means for coupling (61) the flushing mechanism (6) to the tank (4); - means for controlling the flushing mechanism; the filling system (5) and the flushing mechanism (6) being mounted behind the wall (10), characterized in that- the filling system (5) and the flushing mechanism (6) are located at least partially outside the tank (1); - the connection means (52) of the filling system (5) are located outside the tank (4); - the coupling means (61) of the flushing mechanism (6) are located outside the tank; one or at least one of the hatches (7) being positioned on the wall to allow access to the connection means (52) of the filling system (5) and to the coupling means (61) of the flushing mechanism (6).

2. Installation (1) according to the preceding claim, characterized in that It includes a frame (2) coupled to the supporting structure, and located behind the wall (10), the bowl (3) being suspended from the frame (2) through the wall (10), and the reservoir (4) being mounted on the frame (2).

3. Installation (1) according to any one of the preceding claims, characterized in thatThe filling system (5) and a closing element of the flushing mechanism (6) are underlying the tank (4).

4. Installation (1) according to any one of the preceding claims, characterized in that the filling system (5) includes a water supply shut-off valve (53) located outside the tank (4) behind at least one hatch (7) provided in the wall (10).

5. Installation (1) according to any one of the preceding claims, characterized in that the filling stop mechanism (5) is a weighing valve (51).

6. Installation (1) according to any one of the preceding claims, characterized in that it includes a drain pipe (81) from an overflow of the reservoir (4) into a water passage (82) opening into the bowl (3).

7. Installation (1) according to the preceding claim, characterized in that the water passage (82) is the one used by the water from the reservoir (4) during a toilet flush.

8. Installation (1) according to any one of claims 6 and 7, characterized in that The reservoir (4) comprises: - a main part (41) for storing water; - a drain extension (42), advantageously formed from the same material as the main part (41); the drain extension (42) extending from an upper end (411) of the main part (41) of the reservoir (4), to near a lower end (412) of the main part (41) of the reservoir (4) to accommodate a drain outlet (421), and in that The drain pipe (81) is connected to the drain outlet (421) and to the water passage (82).

9. Installation (1) according to any one of claims 1 to 7, characterized in thatthe tank (4) has a water inlet (431) extending from the tank (4) to the outside of the tank (4), the connection means (52) connecting the filling system (5) to the water inlet (431) of the tank (4) from the outside of the tank (4), and in that the reservoir (4) comprises: - a main part (41) intended for storing water; - a water inlet extension (43), advantageously made of material with the main part (41); the water inlet extension (43) positioning the water inlet (431) near a lower end (412) of the main part (41) of the reservoir (4).

10. Installation (1) according to claim 8, characterized in that the tank (4) has a water inlet (431) extending from the tank (4) to the outside of the tank (4), the connection means (52) connecting the filling system (5) to the water inlet (431) of the tank (4) from the outside of the tank (4), and in thatthe reservoir (4) includes a water inlet extension (43) coming from matter with the main part (41), and positioning the water inlet (431) near a lower end (412) of the main part (41) of the reservoir (4).

11. Kit for the installation of a wall-hung toilet (1), comprising: - a frame (2) intended to be fixed to a load-bearing structure, and intended to allow the suspension of a toilet bowl (3) through a wall (10); - a water tank (4) intended to be mounted on the frame (2); - a filling system (5) for the tank (4) from a water supply (50), comprising a mechanism for stopping the filling from a predetermined level; - a gravity-fed flushing mechanism (6) for the tank (4); characterized in that- the flushing mechanism (6) includes coupling means (61) on the tank (4) from outside the tank (4), the flushing mechanism (6) being designed to be located at least partially outside the tank (4); - the filling system (5) includes connection means (52) on the tank (4) from outside the tank (4), the filling system (5) being designed to be located at least partially outside the tank (4).

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