Bidet toilet having a damage device

Abstract

A douche toilet including a toilet bowl having a flushing water connection for feeding flushing water into a flushing chamber defined by the toilet bowl, having a lower end and an upper end delimited by a toilet opening, a drain connection including a primary odor trap for carrying away waste water from the flushing chamber in the course of a flushing operation, a personal cleaning device fed by way of a drinking water line for performing personal cleaning in respect of a user, as well as a safety device for safeguarding a drinking water line is provided. To provide for a compact douche toilet fulfilling the requirements of DIN EN 1717, the safety device includes a damage opening arranged below an upper edge of the toilet opening.

Claims

1. A douche toilet comprising a toilet bowl having a flushing water connection for feeding flushing water into a flushing chamber defined by the toilet bowl, having a lower end and an upper end delimited by a toilet opening, a drain connection including a primary odor trap for carrying away waste water from the flushing chamber in the course of a flushing operation, a personal cleaning device fed by way of a drinking water line for performing personal cleaning in respect of a user, as well as a safety device for safeguarding a drinking water line, the safety device including a damage opening arranged below an upper edge of the toilet opening.

2. A douche toilet as set forth in claim 1, wherein the damage opening comprises a funnel-shaped configuration.

3. A douche toilet as set forth in claim 1, wherein the safety device comprises a connecting element designed to feed leakage or foul water to the damage opening.

4. A douche toilet as set forth in claim 3, wherein the connecting element comprises a hose.

5. A douche toilet as set forth in claim 1, wherein the safety device is arranged behind the primary odor trap.

6. A douche toilet as set forth in claim 1, wherein it includes an odor trap designed to suck odors from inside the toilet bowl.

7. A douche toilet as set forth in claim 5, wherein it includes a connection portion designed to connect the hose.

8. A douche toilet as set forth in claim 1, wherein the safety device is at least partially integrated into the drain connection.

9. A douche toilet as set forth in claim 1, wherein the safety device includes a ring syphon which extends around the drain connection and/or is integrated into same.

10. A douche toilet as set forth claim 1, wherein the safety device includes an offset to permit an offset of the damage opening from the drain connection.

11. A douche toilet as set forth in claim 10, wherein the offset is designed as an offset funnel having a transverse channel which in the installation position extends transversely relative to the longitudinal axis of the drain connection.

12. A douche toilet as set forth in claim 1, wherein the personal cleaning device includes a flushing lance which is moveable from a retracted rest position into an extension position disposed in the interior of the flushing chamber.

13. A douche toilet as set forth in claim 3, wherein the connecting element comprises a ring syphon which either surrounds a drain connection or is integrated into the same.

14. An offset funnel for catching leakage water from a drinking water or flushing water line supplying a personal cleaning device, on a douche toilet as set forth in claim 1, wherein it includes a funnel adapted to catch the leakage water, a transverse channel and a connecter for connection to the drain connection.

15. An offset funnel as set forth in claim 14, wherein the connecter includes an insert connection.

16. An offset funnel as set forth in claim 14, wherein the connecter includes a latch.

17. An offset funnel as set forth in claim 16, wherein the latch includes tongues.

18. A douche toilet as set forth in claim 5, wherein the safety device is designed as a syphon.

19. A douche toilet comprising a toilet bowl having a flushing water connection for feeding flushing water into a flushing chamber defined by the toilet bowl, having a lower end and an upper end delimited by a toilet opening, a drain connection including a primary odor trap for carrying away waste water from the flushing chamber in the course of a flushing operation, a personal cleaning device fed by way of a drinking water line for performing personal cleaning in respect of a user, as well as a safety device for safeguarding a drinking water line, the safety device including a damage opening arranged below an upper edge of the toilet opening; wherein the safety device comprises a secondary syphon located behind a primary syphon; and wherein the safety device comprises a connecting element designed to feed leakage or foul water to the damage opening.

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

(1) The foregoing summary, as well as the following detailed description of the invention, will be better understood when read in conjunction with the appended drawings. For the purpose of illustrating the invention, there are shown in the drawings embodiments which are presently preferred. It should be understood, however, that the invention is not limited to the precise arrangements and instrumentalities shown.

(2) FIG. 1 shows a shows a longitudinal section of the rear end of the douche toilet,

(3) FIG. 2 shows a perspective view of the lance unit integrated into the flushing water connection,

(4) FIG. 3 shows a perspective view of a first embodiment of a drain connection according to the invention with integrated damage device,

(5) FIG. 4 shows a cross-section of the drain connection of FIG. 3 through the damage device,

(6) FIG. 5 shows a perspective view of a drain connection with a second embodiment of a damage device,

(7) FIG. 6 shows a cross-section through the damage device of FIG. 5,

(8) FIG. 7 shows a diagrammatic rear view of a douche toilet according to the invention with a thermostat cartridge and a DIN EN 1717 safeguard designed in accordance with the invention,

(9) FIG. 8 shows a diagrammatic longitudinal section through a toilet for illustrating a first damage situation in a toilet with a blockage of the primary syphon,

(10) FIG. 9 shows a diagrammatic longitudinal section through a toilet for illustrating a second damage situation in a toilet with a blockage of the drain connection,

(11) FIG. 10 shows a diagrammatic longitudinal section through a toilet for illustrating a third damage situation in a toilet with a blockage of the secondary syphon or the damage opening,

(12) FIG. 11 shows a perspective view of a drain connection with a third embodiment of a damage device according to the invention; and

(13) FIG. 12 shows a cross-section of the damage device along line XII-XII in FIG. 11.

DETAILED DESCRIPTION OF THE INVENTION

(14) Identical or corresponding components are denoted by the same references.

(15) The proposed douche toilet is substantially formed by a toilet bowl 2 of ceramic, into which a flushing water connection 4 in the form of a flushing water connection portion 4a is sealingly inserted at the rear side for feeding flushing water from a cistern which is arranged behind the wall and which is connected to the flushing water connection portion 4a by way of a flushing pipe (not shown), which cistern is preferably installed in the form of a concealed cistern in the wall. In a flushing operation the flushing water flows into the flushing chamber 2a defined by the toilet bowl 2 by way of the flushing water connection portion 4a and flows out of same by way of a toilet or primary syphon 2b provided in the lower end of the toilet bowl 2, through the waste water connection 6 in the form of a drain connection portion 6a, into the discharge flow pipe. The primary syphon 2b therefore in known fashion prevents odors from flowing out of the waste water conduit into the toilet bowl 2 or the douche toilet by virtue of the water contained in the lower bend after the flush.

(16) The flushing water connection portion 4a and the drain connection portion 6a are both in the form of respective hollow-cylindrical injection moldings which with their front endsas viewed in the installation positioncan be releasably and sealingly inserted into a receiver of a suitable configuration at the rear side of the toilet bowl 2, by a respective sealing cuff 22, 24 in the shape of a circular ring.

(17) The drinking water supply for the flushing lance is provided by way of a cold water connection in the form of an angle valve 8. Besides that cold water connection there can also be a warm water connection for supplying the flushing lance with warm water.

(18) Arranged downstream of the primary syphon 2b and between the top side of the drain connection portion 6a and the flushing water connection portion 4a is the connecting element according to the invention which in the present preferred embodiment is integrated into the drain connection portion 6a. The connecting element includes a receiving connection portion 6j which is shaped in one piece at the top side of the drain connection portion 6a and which in the present case of a rectangular cross-section. Fitted into that receiving connection portion 6j is an insert element 6b which is of a configuration corresponding to the geometry of the receiving connection portion 6j and it can be inserted into the receiving connection portion 6j to such an extent until a limb 6c projecting radially outwardly approximately at the center of the insert element 6b comes to bear against the top side of the receiving connection portion 6j. At its top side the insert element 6b has a connecting connection portion 6d on to which can be fitted a connecting pipe which with its other end is connected to the other side of the flushing water connection portion 14a by way of a hose nipple. By virtue of the insert element 6b which is inserted into the receiving connection portion 6j, formed between those components is a secondary syphon, by virtue of internal walls which correspondingly mutually engage over each other, to prevent the issue of unwanted odors from the drain connection portion 6a. Besides the internal walls of the receiving connection portion 6j and the insert element 6b, which mutually engage behind each other in the installation position, provided at the upper end of the insert element 6b is a damage opening 6e which is screened off towards the interior by a vertical limb 6f and by way of which water flowing through the primary syphon 2b and the drain connection portion 6a can issue into the surrounding space if a blockage should occur. In that way the requirements of DIN EN 1717 are fulfilled with surprisingly simple features, that is to say back-suction of contaminated water into the water line is prevented.

(19) In the present preferred embodiment the connecting element between the flushing water connection 4 and the drain connection 6 with the damage opening is at least partially formed in one piece by shaping on the drain connection portion 6a. That however is not necessarily required for carrying the invention into effect; rather, it is also possible to simply provide a connection in the form of a pipe or hose with a corresponding damage opening between the flushing water connection and the drain connection.

(20) A further aspect of the invention is the flushing water connection 4 shown in a perspective view in FIG. 2, with a preferably integrally integrated flushing lance. This comprises a substantially hollow-cylindrical flushing water connection portion 4a with a front end which can be inserted into the rear side of the toilet bowl 2, and a rear end which can be connected to a flushing pipe. The flushing water flows through the flushing water connection portion 4a out of the flushing water container in a flushing operation through a plurality of flushing openings 4b which are directed downwardly and to the side at the front end in the installation position, into the flushing chamber 2a of the toilet bowl 2. The inflowing flushing water is thus distributed in a ring-like or fan-shaped configuration to implement a flushing action which is over as full a surface area as possible, starting from the rear side and along the side surfaces of the flushing chamber 2a of the toilet bowl 2. The flushing performance can be adapted as required by modifying the arrangement of the flushing openings 4b. In a further development the jetting performance of those flushing water openings can also be adjusted and/or closed.

(21) Formed in one piece at the top side of the flushing water connection portion 4a and formed integrally therewith as a one-piece injection molding is a cylindrical lance housing 4c of the flushing lance for longitudinally displaceably receiving a lance slider 4e, extending transversely relative to the longitudinal axis of the flushing water connection portion 4a. The longitudinal axis of the lance housing 4c or the lance slider 4e includes with the longitudinal axis of the flushing water connection portion 4a an angle of between 3 and 35 degrees, preferably 10 degrees. By adjusting the angle of inclination the flushing lance can be adapted to the respective circumstances of the WC bowl 2 when therefore the latter involves different geometrical configurations or when the flushing lance is intended to be caused to penetrate into the flushing chamber 2a to differing depths. In a development the lance housing includes an adjuster for adjusting the inclination of the lance housing 4c in relation to the longitudinal axis of the flushing water connection 4, for example by a knurled screw. At its end which is the rearward in the installation position the lance housing 4c has a connecting connection portion 4d for a separate fresh or drinking water line.

(22) In a development the end position of the lance can also be adapted to be adjustable in order thereby to vary the position of the douche jet by varying the depth of penetration of the lance in the extension position. In a preferred solution that is effected by an adjustable abutment comprising a Bowden cable which is fixed to an operating element and is displaceable by way thereof.

(23) When flushing water for performing personal flushing flows into the lance housing 4c by way of that connecting connection portion 4d, for example controlled by way of a cartridge, the water pressure of the inflowing flushing water drives the lance slider 4e arranged longitudinally displaceably in the lance housing 4c initially only forwardly, by virtue of an annular flange formed in one piece on the internal wall, against a compression spring 4f operative between the lance slider 4e and the front side of the lance housing 4c, so that the lance slider 4e issues through an opening in a union nut 4g into the flushing chamber 2a of the toilet. however as soon as the water can flow past the annular flange at that annular seal when the lance slider 4e is sufficiently driven forwardly in the passing chamber 4h, which is the case when the lance slider 4e is approximately half extended, the flushing water for performing the personal flushing operation passes out of the exit openings at the front side in the lance slider 4e of the flushing lance for performing personal flushing. The lance slider 4e is therefore initially extended by about half before personal intimate flushing occurs.

(24) Provided at the upper rear end of the toilet bowl 2 is an upwardly projecting step 2c into which the rear end of the lance housing 4c and of the connecting connection portion 4d project in order to permit simple fitment of those elements. The height of the step 2c is no higher than the height of the fitted toilet lid in the closed condition and therefore fits harmonically into the overall design of the toilet. The step is also easy to clean as it is integrated throughout in one piece in the ceramic pan. By virtue of the low structural volume required however it is also basically possible for the invention to be carried out without such a step 2c in the toilet bowl 2.

(25) For mounting, dismantling and/or maintenance of the flushing lance it is only necessary to remove the union nut 4g, the compression spring 4f and the lance slider 4e. In that way the flushing lance can be fitted and maintained even when the toilet is completely mounted, without removal thereof from the wall, and that represents a marked improvement over the state of the art.

(26) FIG. 5 shows a perspective view of a drain connection portion 6a with an alternative configuration of a damage device according to the invention. This also includes a receiving connection portion 6j which is rectangular in cross-section and into which however an insert element in the form of a funnel element 6g is now fitted. At its lower portion that funnel element 6a is of a configuration corresponding to the cross-section of the receiving connection portion 6j and from there enlarges conically upwardly to form a funnel of rectangular cross-section, which in the center includes a bridge hoop 6h which bridges over the entrance of the funnel in an arcuate configuration and at the top side of which there is in turn provided a connection nipple 6i for a drain hose (not shown). It is possible to connect to that connection nipple 6i the drain hose which with its other end for carrying away leakage water is connected to the injector for forming the DIN 1717 safeguard. The particular advantage of this configuration is that this connection can be designed as may be desired and can be passed even in the very constricted structural space within the toilet over prolonged distances, for example by a connecting hose, as long as there is a sufficient fall. That affords quite novel use options in terms of design configuration. In this embodiment also an odor trap in the form of a syphon or secondary syphon is provided in the damage device. Alternatively the funnel can also be of such a shape that it ends directly beneath the injector and leakage water can thus be removed directly, that is to say without an additional hose.

(27) Various blockages (damage situations) can occur within a toilet, which could lead to unwanted back-suction into the drinking water line and all of these are effectively avoided by the invention.

(28) FIG. 7 shows a rear view of a douche toilet including a cold water conduit 10 and a separate warm water conduit 12 which are connected from separate angle valves to a regulatable thermostat 14. The mixed water from that thermostat 14 is fed to a rotational cartridge 16 by way of a mixed water conduit, which cartridge 16 is arranged at the side of the toilet bowl 2, that is opposite to the thermostat 14. That cartridge 16 includes a rotary regulator 16a which is arranged externally on the toilet bowl 2 and which regulates the issue of drinking water from a nozzle of an injector forming the DIN EN 1717 safeguard, after the cartridge 16. A catch funnel 16c is arranged at a spacing of about 2 cm in the axial direction along the longitudinal axis of the injector, in the injector, opposite the nozzle 16b, the funnel 16c being connected to the connecting connection portion 4d of the lance housing 4c. Arranged at a spacing of 2 cm beneath a leakage water outlet opening of the injector is the funnel-shaped damage opening 18a of a damage line 18 which is connected to the drain connection 6 by way of an interposed secondary syphon 20.

(29) Some of the possible damage situations are discussed hereinafter:

(30) In the first damage situation shown in FIG. 8 the toilet or primary syphon 2b is blocked. By virtue of renewed flushing foul water rises in the flushing chamber to such a height that the toilet overflows. As the damage opening 18a of the safety device is disposed after the toilet syphon 2b leakage water can still flow away unimpeded. If back-suction should occur then air and not foul water is sucked into the drinking water line; the conditions of DIN EN 1717 are thus met.

(31) In the second damage situation shown in FIG. 9 the toilet is blocked after the primary syphon 2b. Although that situation occurs extremely rarely the safety device is also thereby not impeded in its mode of operation. More specifically, only foul water passes out of the damage opening 18a on to the floor. In the event of possible back-suction in this respect here too air and not foul water is drawn into the drinking water line. The highest possible water level at the damage opening 18a can be exactly ascertained. That arises out of the flow resistance of the damage line plus the associated secondary syphon 20 and the pressure which can occur due to the geodetic height difference between the upper edge of the toilet pan (flushing chamber) and the upper edge of the damage opening. Exactly determining that critical water level is important because the safety distance of 2 cm above the critical water level in accordance with DIN EN 1717 is always to be observed.

(32) In the last damage situation as shown in FIG. 10 finally there is a blockage within the damage line 18 or the leakage water line. With that problem also leakage water passes into the room so that that problem is immediately visible. In the event of possible back-suction once again air and not foul water is sucked into the drinking water line. The back-suction safeguard in accordance with DIN EN 1717 is afforded in this case also.

(33) The third embodiment shown in FIGS. 11 and 12 of the damage device according to the invention is designed in space-optimized fashion for installation in particularly constricted structural arrangements at the rear end of the toilet. In this embodiment the syphon is in the form of a ring syphon 6k which extends in a ring shape around the outer peripheral surface of the drain connection portion 6a and thus does not require any additional height. At the upper entry end the ring syphon 6k opens into the receiving connection portion 6p and at the upper exit end into a radial opening 6l at the end of the drain connection portion 6a, being the upper end in the installation position.

(34) For catching and carrying the leakage water of the flushing lance an offset funnel 6m is sealingly fitted into the receiving connection portion 6p, which passes caught leakage water to the ring syphon 6k laterally displaced from the longitudinal axis of the drain connection portion 6a. That offset funnel 6n includes a transverse channel 6m which has a slight fall and which is of a channel-like configuration and extends in the installation position transversely relative to the longitudinal direction in which the drain connection portion 6a extends. At its lower end that transverse channel 6n is adapted for connection to the drain connection portion 6a and at its upper endat the right-hand side in the Figuresit has a laterally enlarged funnel 6o for catching leakage water. In the installation position the funnel 6o is beneath the flushing lance or douche lance, and therefore catches any leakage water which possibly issues and passes same by way of the ring syphon 6k to the drain connection 6.

(35) In the present embodiment the offset funnel 6m is provided at a lower end with an insert connection portion for sealing insertion in the receiving connection portion 6p, and can therefore be releasably fixed to the receiving connection portion and includes at both sides at the ends latching tongues for releasable fixing in the installation position. That releasable connection between the offset funnel 6m and the drain connection portion 6a that it is possible to implement simple adaptation to different toilet bowls or toilet pans by using different offset funnels 6m.

(36) The invention therefore provides a douche toilet which is operable only by way of water, that is to say in power-less mode, wherein the douche functionality can be integrated into a normal toilet pan by virtue of the compact structure. Thus for the first time there is provided a particularly compact and inexpensive douche toilet without a technical box or unit behind the toilet bowl while complying with the requirements of DIN EN 1717.

(37) The subject-matter of the present invention arises not just out of the subject-matter of the individual claims but from the combination of the individual claims with each other. All features and details disclosed in the documentsincluding the Abstractin particular the spatial configuration illustrated in the drawings, are claimed as essential to the invention insofar as they are novel individually or in combination over the state of the art.

(38) It will be appreciated by those skilled in the art that changes could be made to the embodiments described above without departing from the broad inventive concept thereof. It is understood, therefore, that this invention is not limited to the particular embodiments disclosed, but it is intended to cover modifications within the spirit and scope of the present invention as defined by the appended claims.