PRESSURE-FLUSHING SYSTEM FOR A TOILET BOWL

Abstract

The invention relates to a pressure-flushing system (100) for toilet bowls, comprising a cistern mounting (500) and a drain module (200), said drain module (200) comprising a vertically oriented pressurized water tank (501) and a drain pipe (502), a hydraulic drain valve (18) and a DC pipe interrupter (5). The drain pipe (502) is mounted vertically in the pressurized water tank (501) and projects from the bottom of the pressurized water tank (201) for a flow connection with the toilet bowl. The drain module (200) is retained by the cistern mounting (500), which also carries a gas accumulator (19). The cistern mounting (500) has a water-carrying design and has a water connection (8) for connection to a drinking water mains or similar, and connecting channels (507, 510) that fluidically connect the pressurized water tank (501) and the gas accumulator. The pressure-flushing system (100) complies with standard EN 1717, is compact and easy to install. It allows pressure-wave flushing with little water and low noise emission.

Claims

1. An outflow module (200) for cisterns for toilet pressure flushing devices, characterized in that it comprises a vertically oriented pressurized water container (201), which is ideally continuously flooded with water in the operating state and vertically arranged within the pressurized water container an outflow pipe (202), which extends with its lower part (240) beyond an opening (504) at the base of the pressurized water container (201), wherein an upper part of the outflow pipe (202) is connected to a lower part (4) of a DC air filter (5), the upper part (6) of which DC air filter is connected to an upper part (84) of the pressurized water container (201), and wherein the lower part (4) of the DC air filter (5) ends in an outlet connecting piece (7), which discharges into the outflow pipe (202), and the upper part (6) of the DC air filter (5) is terminated using a flushing water regulator (8) and/or using control elements of a hydraulic outflow valve (18), wherein, in the middle part (21) of the DC air filter (5), horizontal outflow channels (9) are located, which are separated from one another by vertical connecting ribs (10) and which are connected to the interior of the pressurized water container (201), and a valve chamber (11) and a valve seat (12) of the hydraulic outflow valve (18) are located, wherein a valve core (13) is located in the valve chamber (11) and wherein vertical ventilation channels (14) extend over the upper part (6) of the DC air filter (5), the connecting ribs (10), and over the lower part (4) of the DC air filter (5).

2. The outflow module (200) according to claim 1, characterized in that a drain part at the base (80) of the pressurized water container (201) has connecting surfaces (15), which are used for a connection to a cistern mounting (500).

3. The outflow module (200) according to claim 1, characterized in that an upper end (242) of the outflow pipe (202) is connected by means of an insertion connection (60) and ring seals (22) to the lower part (4) of the DC air filter (5).

4. The outflow module (200) according to claim 1, characterized in that the valve seat (12) of the hydraulic outflow valve (18) is connected to the lower part (4) of the DC air filter (5) by a threaded connection.

5. The outflow module (200) according to claim 1, characterized in that the flushing water regulator (8) is connected to the upper part (6) of the DC air filter (5) by a threaded connection.

6. The outflow module (200) according to claim 1, characterized in that the upper part (6) of the DC air filter (5) is connected to the upper part of the pressurized water container (1) by a threaded connection.

7. A cistern mounting (500) for toilet pressure flushing devices using pressure wave flushing, characterized in that the cistern mounting (500) is a carrier plate (1) comprising an open outflow shell (502) accessible from above for attaching an outflow module (200), which has an outflow opening (504) in the center of its base (503) for inserting an outflow pipe (202) and at least one inflow opening (509) on the peripheral section of the base (503), wherein the carrier plate (1) furthermore has at least one open inflow shell (505) accessible from above for attaching a hydraulic gas accumulator, and wherein an inlet/outlet opening (506) is located on the peripheral section of the base (503) of the open inflow shell (505), which inlet/outlet opening is connected to an inflow channel (507) or an inflow pipe of the cistern mounting (500), which has a water connection (8), wherein the inlet and/or outlet opening (506) of the open inflow shell (505) is connected via a connecting channel (510) or a connecting pipe of the cistern mounting to the at least one inflow opening (509) on the peripheral section of the base (503) of the open outflow shell (502).

8. The cistern mounting (500) according to claim 7, characterized in that the open outflow shell (502) has attachment flanges (511), which are used for attaching the outflow module (200).

9. The cistern mounting (500) according to claim 7, characterized in that the at least one open inflow shell (505) has attachment flanges (511), which are used for attaching the hydraulic gas accumulator (19).

10. The cistern mounting (500) according to claim 7, characterized in that the outflow opening (504) in the center of the base (503) of the outflow shell (502) has a seal (512), which is used for the pressure-tight insertion of the outflow pipe (202).

11. The cistern mounting (500) according to claim 7, characterized in that the carrier plate (501) has thin walls and stabilizing ribs (513).

12. The cistern mounting (500) according to claim 7, characterized in that the base (503, 503) of the outflow shell (502) and/or the inflow shell (505) protrude downward out of the carrier plate (501).

13. The cistern mounting (500) according to claim 7, characterized in that two accessible open inflow shells (505) are located on top on the carrier plate (501), which are used for the respective attachment of a hydraulic gas accumulator (19), wherein each of the inflow shells (505) is connected to an inflow channel (7) or an inflow pipe having a water connection (508), wherein the inlet/outlet openings (506) of the open inflow shells (550) are each connected via connecting channels (510) or connecting pipes to an inflow opening (509) on the peripheral section of the base (503) of the open outflow shell (502).

14. The cistern mounting (500) according to claim 7, characterized in that the carrier plate (501) is fixedly connected to the outflow pipe (202).

15. The cistern mounting (500) according to any one of claims 7 to 14, characterized in that the carrier plate (501) has installation retention elements.

16. The cistern mounting (500) according to any one of claims 7 to 13, characterized in that the carrier plate (501) is manufactured in one piece, preferably as an injection-molded part or cast part.

17. A pressurized water flushing system (100) for toilet bowls comprising a pressurized water container (201) and a mounting for the pressurized water container (201) and also comprising an outflow pipe (202) and a hydraulic outflow valve (18), which is used for the regulated drainage of flushing water out of the pressurized water container (201) via the outflow pipe (202) into the toilet bowl (300), characterized in that the mounting is a cistern mounting (500) according to any one of claims 7 to 16 and pressurized water container (201), outflow pipe (202), and hydraulic outflow valve (18) are components of an outflow module (200) according to any one of claims 1 to 6, and it comprises at least one hydraulic gas accumulator (19), which is connected on the outflow side via the cistern mounting (500) to the pressurized water container (201) and is connectable on the inflow side via the cistern mounting (500) to a pressurized water supply system.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The design according to the invention of the pressure flushing system for toilet facilities having cistern mounting and outflow module, which enables a pressure wave flushing with lower noise intensity, is illustrated by way of example with reference to the appended drawings. The figures are only sketches and are not to scale. Identical elements are identified with identical reference signs in the figures.

[0041] FIG. 1 shows a perspective view from above of a cistern mounting.

[0042] FIG. 2 shows a perspective view from above of the cistern mounting having parts of an outflow module installed therein in a frame support design;

[0043] FIG. 3 shows the cistern mounting having parts installed therein of an outflow module in a frame support design in a perspective view from below;

[0044] FIG. 4 shows a side view of a pressure flushing system having cistern mounting, pressurized water container, gas accumulators, and outflow module, which is located in the wall frame for the toilet bowl fitting.

[0045] FIG. 5 shows a top view of the pressure flushing system in the wall frame from FIG. 4.

[0046] FIG. 6 shows an outflow module together with two hydraulic gas accumulators as part of the pressure flushing system.

[0047] FIG. 7 shows the outflow module from FIG. 6 in cross section from the side.

[0048] FIG. 8 shows a side view of a DC air filter of the outflow module.

[0049] FIG. 9 shows the DC air filter from FIG. 8 in a perspective view from above.

[0050] FIG. 10 shows the DC air filter from FIG. 8 with its vertical ventilation channels in a lateral cross section.

[0051] FIG. 11 shows the DC air filter from FIG. 10 in a second lateral cross section slightly pivoted from that of FIG. 10, so that its horizontal outflow channels are visible.

[0052] FIG. 12 shows the connection of the upper part of the pressurized water container to the DC air filter and outflow valve seated therein in the closed position in section.

[0053] FIG. 13 shows the connection of the upper part of the pressurized water container to the DC air filter having the outflow valve seated therein in the open position in section.

ILLUSTRATIVE EMBODIMENTS

[0054] It is obvious that individual embodiments of the invention are to be illustrative and are not restrictive for technical solutions. A person skilled in the art will be able to find or establish many equivalents to the specific embodiments of the invention using no more than routine experiments. Such equivalents also fall under the patent claims.

[0055] A specific embodiment of a cistern mounting 500 for a toilet water pressure flushing system 100 according to the invention using pressure wave flushing is shown in the example illustrated in FIGS. 1 to 3. The cistern mounting 500 for the toilet water pressure flushing system comprises a carrier plate 501 having a centrally arranged open outflow shell 502 accessible from above for accommodating an outflow module 200 (see FIG. 4), wherein the outflow shell 502 has an outflow opening 504 for the mounting of an outflow pipe 202 in its base 503 (FIG. 2). The carrier plate 501 furthermore has two open inflow shells 505 accessible from above, which are each used to accommodate one hydraulic gas accumulator 19 (see FIG. 4). Each inflow shell 505 has, in a peripheral section of its base 503, an associated inlet/outlet opening 506, which is connected to an inflow channel 507, which has a water connection 508. The inlet/outlet openings 506 of the open inflow shell 505 are each connected via a connecting channel 510 (see FIG. 3) to a supply opening 509 in the peripheral section of the base 503 of the open outflow shell 502. The open outflow shell 502 has an attachment flange 511 for the attachment of the outflow module 200. The open inflow shell 505 also has attachment flanges 511 for the attachment of the hydraulic gas accumulators 19. The outflow opening 504 in the base center 503 of the outflow shell 502 has an overpressure seal 512 (see FIG. 2) for attaching the outflow pipe 202. In this case, the outflow pipe 202 is not a component of the cistern mounting 500. In alternative embodiments, the outflow pipe 202 is a component of the cistern mounting 500.

[0056] The carrier plate 501 is formed thin-walled having stabilizing ribs 513, preferably made of plastic. The base 503 of the outflow shell 502 and the base 503 of the inflow shell 505 protrude at the lower side of the carrier plate 501 in the form of a spherical cap or a deep cylinder out of the carrier plate 501 (FIG. 3). One water connection 508 is located on each of the left side and also the right side on the carrier plate 501. However, it is sufficient if only one water connection 508 is used for the connection on/to a local pressurized water/drinking water line. For practical reasons, installation retention elements (not shown) are located on the carrier plate 501.

[0057] A specific embodiment of the pressure flushing system 100 according to the invention for toilet bowls using pressure wave flushing is illustrated by way of example in FIGS. 4 and 5. A cistern mounting 500 having carrier plate 501 and hydraulic gas accumulators 19 installed thereon, and also a pressurized water container 1 installed thereon, which is associated in this example with an easily installable outflow module 200, are shown. The outflow module 200 is attached to the outflow shell 502, which is open on top, of the carrier plate 501. The outflow module 200 comprises a pressurized water container 201, which is continuously filled with water in the usage state, an outflow pipe 202, a DC filter 205, and a hydraulic outlet valve 18. In addition, a hydraulic gas accumulator 19 is installed on each of the left and right inflow shells 505 and is attached with an included water volume and compressed air volume on the carrier plate 501 of the cistern mounting 500.

[0058] FIG. 4 shows the position of the pressure flushing system 100 as a component of a pressure flushing device, which is arranged by means of a supporting construction, for example, in the wall behind the toilet bowl. The pressure flushing system 100 is fastened in a frame 90 of the supporting construction, so that a safety minimum height of 0.400 mm from the end of the jet above the overflow level of the toilet bowl is maintained in relation to the toilet bowl.

[0059] The functionality and the achieved action of the cistern mounting 500 according to the invention of the pressure flushing system 100 using pressure wave flushing can be explained as follows: The hydraulic gas accumulators 19 are filled with water, for example, from the drinking water line via the water connection or fittings 508 and via the supply channel or channels 507. The water required for flushing passes via the connecting channels 510 in the carrier plate 501 of the cistern mounting 500, on the one hand, via the hydraulic gas accumulators 19 into the pressurized water container 1, on the other hand, at least during the initial filling also directly via the inflow channels 507 and the connecting channels 510 into the pressurized water container 1.

[0060] A specific embodiment of the outflow module 200 according to the invention having pressure wave flushing and low noise development for toilet pressure flushing systems 100 is illustrated by way of example on the basis of FIGS. 6 and 7. The outflow module 200 for pressure flushing systems 100 for toilet bowls comprises a vertically oriented pressurized water container 201, which is continuously filled with water 420 in the usage state. A vertically arranged outflow pipe 202 is located in the pressurized water container 201. The outflow pipe 202 extends with its lower end 240 beyond the base 80 of the pressurized water container 201 and the base 503 of the outflow shell 502 into the outlet opening 504 of the cistern mounting 500 and either discharges itself via a toilet bowl fitting 20 into a toilet bowl 300 (FIG. 7), or discharges into a connecting pipe having toilet bowl fitting 20 (FIG. 7). The pressurized water container 201 has a shape tapering upward slightly conically in this example, but can also be formed cylindrical, conically tapering in an inverted manner, or in a shape suitable in another manner for pressurized water. The axis 244 of the outflow pipe 202 is arranged concentrically with the axis 82 of the pressurized water container 201 in this example, but non-concentric arrangements are also conceivable.

[0061] Furthermore, the DC filter 5 and the hydraulic outflow valve 18 in the compact composite with the outflow module 200 are explained on the basis of FIGS. 7 and 8 to 13: The hydraulic outflow valve 18 is integrated into the DC filter 5. The outflow pipe 202 is connected at its upper end 242 by means of an insertion connection 60 and ring seals 22 to a lower part 4 of a DC filter 5 (FIG. 7). The lower part 4 of the DC filter 5 is terminated using an outlet connecting piece 7, which protrudes into the outflow pipe 202. An upper part 6 of the DC filter 5 is connected to an upper part 84 of the pressurized water container 201 by means of a threaded connection and is terminated using a flushing water regulator 8 and using control elements (not shown, also called regulators) of the hydraulic outflow valve 18, which are used for opening or closing the hydraulic outflow valve 18. The flushing water regulator 8 is connected to the upper part 6 of the DC air filter 5 using a threaded connection.

[0062] A seat 12 of the hydraulic outflow valve 18 is also connected to the lower part 4 of the DC air filter 5 by means of a threaded connection. The valve seat 12 and a valve core 13 closing the valve seat in a leak-tight manner are located in a valve chamber 11 of the hydraulic outflow valve 18. Horizontal outflow channels 9, which connect the water volume in the interior of the pressurized water container 201 to a space above the valve seat 12, are located in the middle part 21 of the DC air filter 5. The middle part 21 of the DC air filter 5 has four vertical connecting ribs 10, which connect the lower part 4 of the DC air filter 5 to the upper part 6 of the DC air filter 5 and separate the outflow channels 9 from one another. Four vertical ventilation channels 14 extend above the upper part 6 of the DC air filter 5 along the connecting ribs 10 into the lower part 4 of the DC air filter 5.

[0063] The implementation of the outflow module 200 in a toilet pressure flushing system having pressure wave flushing and low noise intensity is described hereafter on the basis of FIGS. 4, 6, and 7. The outflow module 200 having the pressurized water container 201 with continuous flow, the outflow pipe 202, the DC air filter 5, and the hydraulic outflow valve 18 is connected by installation to the carrier plate 501 of the cistern mounting 500. In this case, the outflow pipe 202 is inserted via an opening on the base 80 of the pressurized water container 501 into an outflow opening 504 of the cistern mounting 500 and the pressurized water container 501 is implemented via connecting flanges 511 of the carrier plate 501 in the cistern mounting 500. An outflow part at the base 80 of the pressurized water container 201 has connecting surfaces 15, which are used for a connection to the cistern mounting 500. It can be inferred from the figures that the pressure flushing system 100 for toilet bowls having pressure wave flushing is completed by two hydraulic gas accumulators 19 having a predetermined water volume 420 and compressed air volume 400, which are also connected to the cistern mounting 500 and via this to two water connections 8. The water inflow to the hydraulic gas accumulators 19 and the water outflow via the outflow module 200 into the toilet bowl are effectuated via the cistern mounting 500. The position of the outflow module as a component of an in-wall pressure flushing system having pressure wave flushing comprising an in-wall supporting frame 90 in the wall behind the toilet bowl 300 can be seen from FIGS. 4 and 7. It is apparent that the lower edge of the outlet connecting piece 7 of the DC air filter 5 is located at a minimum safety height zh of 0.400 m above flow level 301 in the toilet bowl 300.

[0064] The functionality and achieved effect of the outflow module 200, which is implemented in a pressure flushing system 100 for toilet bowls using pressure wave flushing, can be explained as follows according to the invention: The water which is required for flushing enters the outflow module 200 from the hydraulic gas accumulators 19. For this purpose, the water flows out of the hydraulic gas accumulators 19 via connecting channels 510 into the cistern mounting 500 and via the outflow shell 502 in the base region of the pressurized water container 501 into the pressurized water container 201 and continuously floods the pressurized water container 1. Upon opening of the hydraulic outflow valve 18, the water from the pressurized water container 1 passes via horizontal outflow channels 9 of the DC air filter 5 into the valve chamber 11 and then via the valve seat 12 by means of the outlet connecting piece 7 into the outflow pipe 202 and ends in the toilet bowl.

[0065] In the event of malfunctions (partial vacuum in the water supply line and risk of backflow of wastewater via the flow level 301 of the toilet bowl 300 upon opening of the hydraulic outflow valve 18), atmospheric air is aspirated via the vertical ventilation channels 14 in the upper part 6 of the DC air filter 5 and flows through the vertical ventilation channels 14 along the connecting ribs 10 and also through the lower part 4 of the DC air filter 5, wherein the aspirated air flows further through the gap between the outflow pipe 202 and the outlet connecting piece 7. The aspirated air flows further through the outlet connecting piece 7 upward in the direction of valve chamber 11 and through the horizontal outflow channels 9 into the pressurized water container 1. The aspirated air then passes via channels 510, 507 in the cistern mounting 500 and the water connections 508 into the water supply line. Soiling of the drinking water due to backflow of dirty water can thus be reliably avoided.

[0066] A through-flow chamber 11, which connects the water container 1 to the outlet pipe 2 and in which an outlet valve 18 for opening and closing the through flow is arranged, is located in the middle part 12 of the DC-L 5. The outlet valve comprises a valve seat 12 and a valve closure 13. The flow rate of the water which flows from the water container 1 into the outflow pipe 2 can be regulated via the lifting height of the valve closure 13. The lifting height is settable by means of the flushing water regulator 8, which is screwed from above into the upper part 6 of the DC-L: The further the regulator is screwed in, the less is the lifting height, and the less is the water quantity which can flow through the valve from the water container into the outlet pipe. The through-flow chamber 11 in the middle part of the DC-L 5 is delimited in relation to the water container 1 by vertical ribs 10, which connect the upper part 6 to the lower part 4 of the DC-L 5 and between which horizontal through-flow channels 9 enable the inflow of water from the water container 1 into the through-flow chamber 11 via the valve seat 12 and, with open valve 18, further into the outflow pipe 2. Regulator parts of the hydraulic outlet valve 18, which effectuate its opening and closing (not shown), can be designed in various ways and can be arranged at various locations, as is readily known for a person skilled in the art from the prior art and can be implemented in conjunction with the hydraulic outlet valve 18 disclosed here. For example, they can be designed as mechanical or electromechanical according to the pressure, step, or hand lever principle with or without brake or time lock. The water container is permanently filled with water, up to the top, so that the through-flow chamber 11 is also permanently filled with water.

[0067] The functionality and mode of operation of the pressure flushing system 100 will be explained once again on the basis of the cross-sectional view of the pressure flushing system 100 of FIG. 5: When the pressure flushing system is first put into use, water firstly flows, for example, from the local water line system (arrow A)in this example via both water connections 508 into the supply channels 507 of the flushing system 100. From there, it flows further via the supply-outflow opening 506 in the inflow shell 505 of the cistern mounting 500 into the gas accumulators 19 (arrows B). The water (arrows B) compresses the gas 400 (usually air) located in the gas accumulators there until the water has reached its maximum water level 420 and the water 420 in the gas accumulators 19 and also the gas 400 above the water 420 are at the same pressure as prevails in the local water line (generally typically 3-6 bar). Moreover, water flows simultaneously via the supply channels 507 and further through the connecting channels 510 connected thereto (arrows C) and flows further through supply openings 509 in the outflow shell 502 of the cistern mounting 500 into the pressurized water container 201 of the outflow module 200 (arrows D). The water flows until the pressurized water container 201 is completely filled, wherein the air contained in the pressurized water container can escape via the ventilation channels 14 of the DC filter 5. Furthermore, the space above the valve seat 12 is also filled with water via the horizontal outflow channels 9 in the DC filter until the water 420 in the pressurized water container 201 is also under the pressure as prevails in the local water line.

[0068] If the hydraulic outflow valve 18 is opened, the water which is required for flushing passes from the pressurized water container 501 via horizontal outflow channels 9 of the DC air filter 5, via the valve chamber 11, and via the valve seat 12 by means of the outlet connecting piece 7 into the outflow pipe 202 and ends in the toilet bowl 300. The same water quantity flows in out of the hydraulic gas accumulators 19 into the outflow module 200, wherein the compressed gas/the compressed air expands and transmits this pressure energy to the flushing water, so that pressure wave flushing results. The water flowing in flows out of the hydraulic gas accumulators 19 via the connecting channels 510 into the cistern mounting 500 and via the outflow shell 502 in the base region of the pressurized water container 501 into the pressurized water container 201. The pressurized water container 1 remains permanently flooded due to the flowing in. Water flows simultaneously out of the local drinking water/pressurized water line via the water connections 508 and the inflow channels 507 into the gas accumulators 19 of the pressurized water flushing system 100, and does so until water and gas or air in the gas accumulators and the water in the pressurized water container again have the same pressure as the water in the local drinking water/pressurized water line.

[0069] The pressure flushing system 100 for toilet bowls having a cistern mounting 500 and an outflow module 200, as illustrated above and wherein the outflow module 200 comprises a vertically oriented pressurized water container 501 and an outflow pipe 502, a hydraulic outflow valve 18, and a DC pipe interrupter 5, enable a pressure wave flushing having steep water front, whereby flushing can be performed very efficiently using small water quantities. The outflow pipe 502 is arranged vertically in the pressurized water container 501 and protrudes at the base out of the pressurized water container 201 for a flow connection to the toilet bowl, whereby a low noise development is implemented during flushing. The outflow module 200 is held by the cistern mounting 500, which also carries a gas accumulator 19. The cistern mounting 500 is designed as water-conducting and has a water connection 8 for the connection to a drinking water line or the like and connecting channels 507, 510, which fluidically connect the pressurized water container 501 and the gas accumulator 19. The pressurized water flushing is very compact and is also suitable for retrofitting in existing facilities due to the cistern mounting 500, which is designed as water-conducting. The pressure flushing system 100 meets the norm EN 1717 due to the integrated DC filter.

[0070] It is clear to a person skilled in the art that and the manner in which the described embodiments and/or the details described on the basis of the exemplary embodiments may be reasonably combined in the scope of the invention defined by the patent claims. However, it is not possible for reasons of space to illustrate all possible and reasonable combinations in detail in the figures and/or describe them.

INDUSTRIAL APPLICABILITY

[0071] The pressure flushing system 100 having pressure wave flushing and low noise intensity comprising the pressure cistern 50 having the cistern mounting 500 and the outflow module 200, and also the outflow module 200 according to the invention presented here per se and the cistern mounting 500 for cisterns for pressure flushing devices for toilet bowls in conjunction with the outflow module 200 and the hydraulic gas accumulators find use in applications of sanitary technology and in hygiene devices.