Siphon for a sanitary fitting

Abstract

Siphon (1, 10) for a sanitary fitting, in particular for a shower channel (2, 12), wherein the siphon (1, 10) has a siphon body (30) for installation in the area of ​​the outlet (17) of the sanitary fitting, wherein the siphon body (30) has a first connection part with a siphon inlet (41) which is connected in a fluid-conducting manner to a middle reservoir part which in turn is connected in a fluid-conducting manner to an outlet part with an outlet (17) of the sanitary fitting, wherein at least the middle reservoir part (19) is designed as a pluggable deflection cassette which connects to the surfaces of the connection part and the outlet part with associated stop edges sealed.

Description

[0001] The invention relates to a siphon for a sanitary fitting, in particular for a shower channel according to the preamble of claim 1.

[0002] Siphons are essential elements in bathrooms, especially in modern walk-in showers. Alongside shower trays and bathtubs, drainage systems are increasingly being installed in the floor to create barrier-free showers, for example. A nearly floor-level channel collects and directs the water towards a slotted inlet opening of the outlet. Through this opening, the wastewater enters a siphon and is then conveyed to a drainage device, such as a drainpipe. Because the shower channel is recessed into the floor, it ensures a seamless transition to the rest of the bathroom floor.

[0003] Installing a siphon in a walk-in shower requires careful planning and execution. First, the shower drain is recessed into the floor and sloped towards the drain. Then, the siphon is connected to the drain. It can be installed either directly underneath the drain or to the side. The choice of the right siphon depends on the shower's construction, the length of the drain, and the desired design. At least the drain body is typically made of stainless steel to ensure that the visible parts have an aesthetically pleasing finish.

[0004] A siphon of this type is shown, for example, in EP 3 828 352 A1 and is designed for a drain, in particular a shower drain. The siphon is installed as an assembly in an inlet opening of a shower or bathtub and comprises a connection part with an inlet opening, a main body with a siphon section, and an outlet part with a drain opening for the wastewater. Liquid flows into the siphon through the inlet opening and out of the siphon through the drain opening, with the siphon section connecting the inlet and drain openings. A connecting piece is mounted on the main body of the siphon to discharge the liquid or wastewater.

[0005] A crucial aspect of installing a siphon is the sealing method used, which often relies on gaskets and sealants to permanently prevent water leaks and potential damage to the shower tray and surrounding structures. It is known that a flexible elastomer gasket is used to seal the siphon assembly around the inlet opening.

[0006] The siphon serves to shield interior spaces from odor and noise disturbances from the sewer system. This is achieved by typically maintaining a residual amount of water in the siphon, which acts as a barrier in a retention area, preventing any air from the sewer from entering the room.

[0007] These types of siphons are usually equipped with filter elements or inserts to prevent blockages caused by hair and similar small particles. The disadvantage of such collection systems is that they require extensive cleaning and are difficult to remove. This involves either removing the inserts by hand or pouring chemicals down the drain to dissolve the small particles and hair. This work is either unpleasant or very harmful to the environment, as the cleaning agents enter the wastewater and then have to be painstakingly removed.

[0008] For more severe soiling, the siphon must be disassembled for cleaning. This is usually only possible by a qualified plumber.

[0009] The invention is therefore based on the objective of providing a siphon for a shower drain that is easily dismantled and, in particular, is designed to be cleaning-free when used as intended.

[0010] The problem is solved according to the invention by the features of the independent claim, while advantageous embodiments and further developments of the invention can be found in the dependent claims.

[0011] An advantageous feature is that at least one central reservoir section is designed as a pluggable deflection cassette, which is sealed to the surfaces of a connection section and an outlet section with associated stop edges.

[0012] This is a siphon for a sanitary fitting, in particular for a shower drain, wherein the siphon has a siphon body for installation in the area of ​​the sanitary fitting's outlet. The siphon body has a first connection part with a siphon inlet, which is connected by a fluid-conducting connection to a middle retention part, which in turn is connected by a fluid-conducting connection to an outlet part with an outlet of the sanitary fitting.

[0013] The siphon body has a siphon inlet and a siphon outlet with a drain pipe mounted on it, the siphon inlet being located at a first end of the multiply angled flow channel and the siphon outlet being located at a second end of the flow channel.

[0014] Thus, the siphon body consists of at least two, preferably three parallel parts, namely a connection part, a middle reservoir part and an outlet part, whose contact surfaces run vertically.

[0015] Preferably, the siphon body consists of three parallel parts, with the middle retention section being removable, so that only the two outer parts remain in the shower channel area. This allows the connection and outlet sections to be permanently installed below the shower channel and to be easily accessible after removing the retention section.

[0016] After removing the reservoir section, the siphon outlet with the drain pipe is also easily accessible.

[0017] In another embodiment, the connection part and the outlet part form a wedge-shaped receiving space between them, for receiving a similarly wedge-shaped reservoir part. This allows the reservoir part, designed as a pluggable deflector cassette, to be inserted wedge-shaped from above, which is helpful for sealing.

[0018] The siphon inlet and the subsequent first section of the duct are easily accessible, allowing the interface between water and room air to be easily cleaned with a cloth. Regular cleaning prevents the formation of foul-smelling biofilm.

[0019] The two or three parts of the siphon body each contain a channel section of the flow channel, so that in a composite siphon body a flow channel with a continuous pipe wall is formed.

[0020] Preferably, a first channel section of the flow channel runs vertically downwards from the siphon inlet in the connection section. Preferably, a second channel section of the flow channel runs vertically upwards in the reservoir section. Preferably, a third channel section of the flow channel runs vertically downwards in the outlet section and opens into the siphon outlet.

[0021] The first canal section and the second canal section are connected via a canal bend, and the second canal section and the third canal section are also connected via another canal bend.

[0022] The vertical wall of a channel section is formed by two parallel, adjacent parts of the siphon body. The channel cross-section can be round, square, or polygonal.

[0023] Alternatively, the individual wall surfaces of the individual parts can also run diagonally, provided that the respective adjacent part corresponds with its wall surface.

[0024] In a preferred embodiment, a single siphon inlet is provided. In a further preferred embodiment, two siphon inlets are provided. The siphon inlet ensures the flow into the flow channel. The siphon inlet(s) can be located on the side surface(s) of the siphon body or on the top surface of the siphon body.

[0025] Within the first and second channel sections, a barrier layer formed by a column of water is present, the level of which lies above the top edge of the outflow pipe. This barrier layer is created by the impoundment section, which allows a column of water to remain in the flow channel.

[0026] The operating principle of the siphon with the multi-part siphon body is based on an s-shaped pipe, the lower bend of which always remains filled with liquid and thus prevents the passage of sewer gases.

[0027] The water seal layer of the water column in the siphon is located just below the collection channel. Therefore, the area above the water seal layer can be correspondingly short (e.g., 50 mm). This also minimizes the formation of biofilms.

[0028] Besides a meandering course, the flow path can also be looped or follow another path. Only when the individual parts of the siphon body are assembled is the flow channel also capable of conveying liquid, with the central reservoir section being designed as a pluggable deflection cassette, which connects to the surfaces of the inlet and outlet sections with associated sealing edges.

[0029] The flow-optimized design of the flow channel allows for high flow rates. This enables a minimum flow rate of 48 liters per minute of water to pass through in a very small installation space.

[0030] The cross-section of the flow channel is approximately 15 mm. Due to the channel's windings, the design requires a minimum width of 3 x 15 mm = 45 mm, as the channel runs in three alternating flow directions. The wall thickness of the siphons within the flow channel is added to this 45 mm. Each siphon has a length of, for example, 80 mm.

[0031] Thanks to the flow-optimized flow channel, the siphon is self-cleaning, as there are no dead spaces or obstacles that allow dirt to accumulate.

[0032] In addition, a suction effect is achieved through the optimized water flow.

[0033] The low construction height and the low drop height of the water also allow for a reduction in noise levels.

[0034] In a first embodiment, the entire siphon is removable. In a second embodiment, the siphon is divided into three parts, with only the middle part, i.e., the reservoir section, being removable. A block-shaped, i.e., cuboid, siphon is preferred. The siphon body is, for example, designed as a three-part block. Preferably, the reservoir section has a cassette shape, i.e., a flat, cuboid form.

[0035] Alternatively, the siphon body is divided into two parts.

[0036] Especially with the three-part design, the drain is easier to clean. The removable part is preferably the reservoir section; the other components remain in the main body and thus in the shower floor.

[0037] Alternatively, the connection part and / or the outlet part can also be removed.

[0038] For example, after removing the reservoir part, the connection part and / or the outlet part can be removed.

[0039] Removing the cassette-shaped reservoir is straightforward and can be done without special tools.

[0040] Due to precisely fitting components, the siphon according to the invention is able to effectively prevent the escape of water and to ensure long-term tightness.

[0041] A shower channel width of 35-40 mm is sufficient for supplying water to the siphon, in particular a width of 20 mm is sufficient to guide the resulting volume of water.

[0042] Even with a very narrow shower channel of 20mm, it is possible to remove the siphon and ensure access to the pipe system.

[0043] The narrow shower channel, which is slightly recessed compared to floor level, directs the water towards the centrally positioned outlet, even without a slope. This effect is particularly effective with the narrow channel.

[0044] The tiler does not need to plan a lateral slope around the shower drain.

[0045] The siphon according to the invention ensures reliable water drainage and prevents unpleasant odors. Cleaning is also facilitated by the special design, as the siphon is easily accessible and can be disassembled.

[0046] The subject matter of the present invention is not only derived from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another.

[0047] All information and features disclosed in the documents, including the abstract, and in particular the spatial configuration shown in the drawings, could be claimed as essential to the invention, insofar as they are novel individually or in combination compared to the prior art. The use of the terms "essential," "according to the invention," or "essential to the invention" is subjective and does not imply that the features so designated must necessarily be part of one or more patent claims.

[0048] The invention is explained in more detail below with reference to drawings illustrating several embodiments. Further essential features and advantages of the invention will become apparent from the drawings and their description. They show:

[0049] Figure 1: a schematic view of a shower channel according to the SdT; Figure 2: a schematic view of a shower channel illustrating aspects of the present invention; Figure 3: a schematic, partially cut-away functional view of a siphon body; Figure 4: an unfolded and cut-away view of the siphon according to a further embodiment of the invention; Figure 5: an assembled and cut-away view of the siphon according to the embodiment according to Figure 4 Figure 6: a cutaway view of a siphon body. Figure 7: an unfolded and cutaway view of the siphon, according to a further embodiment of the invention. Figure 8: an assembled and cutaway view of the siphon, according to the embodiment according to... Figure 7

[0050] Figure 1Figure 1 shows a shower channel 2 known from the prior art as an example of a sanitary fitting. The shower channel 2 has a collecting channel 4 surrounded by a raised edge 3 and with a slope. The slope has its lowest point at the inlet opening 5, where the water can flow into the siphon 1 (not shown). After flowing through the siphon section of the siphon 1 (not shown here), the water flows into the drain pipe 9. The shower channel 2 is covered by the cover strip 6 when installed.

[0051] Figure 2Figure 1 shows the siphon 10 according to a first embodiment of the invention, wherein the siphon 10 is designed in multiple parts and one part, namely the reservoir part 19 of the siphon 10, can be removed from the shower channel 12 in the direction of arrow 31. The shower channel 12 has a collecting channel 14 surrounded by a raised edge 13 and with a slope. The slope has its lowest point in the inlet opening 15, where the water can flow into the siphon 10.

[0052] Thus, the siphon 10 has a siphon body 30, as shown in Figure 3 shown, which is installed in the area of ​​outlet 17 of the sanitary fitting.

[0053] In Figure 2 The flow channel 40 can be seen, which, with its channel section 49, passes through the reservoir section 19 of the siphon 1. After the subsequent flow through the not shown final section 20 of the siphon body 30, the wastewater flows out via the drain pipe 9.

[0054] Figure 3shows the siphon body 30 with a siphon inlet 41 for connection with the outlet 17 or the inlet opening 15 of the sanitary fitting as well as a siphon outlet 43 which can be connected to a drain pipe 9.

[0055] Inside the siphon body 30, the flow channel 40 runs in a meandering pattern, which, due to the three-part structure of the siphon body 30, is also divided into three parts and has a first channel section 48, a second channel section 49 and a third channel section 50.

[0056] The middle reservoir section 19 is designed as a pluggable deflection cassette, which is sealed to the surfaces of the connection section 18 and the outlet section 19 with associated stop edges.

[0057] The first channel section 48 begins at the siphon inlet 41 and runs mainly vertically downwards through the first channel section of the connection part 18 and opens into an opening in the side wall of the connection part 18. In the case of a compound siphon body 30, another opening would connect directly to this opening, which is located in the side wall of the reservoir part 19.

[0058] Starting from this opening in the side wall, the flow channel runs mainly vertically upwards and runs as channel section 49 through the reservoir section 19 and opens into an opening in the side wall of the outlet section 20.

[0059] In a compound siphon body 30, a further opening connects directly to this opening, located in the side wall of the outlet section 20. From this opening in the side wall, the flow channel 40 extends mainly vertically downwards and runs as channel section 50 through the outlet section 20, emptying into the siphon outlet 43, which is formed by an opening in the side wall of the outlet section 20. The wastewater, which has passed through the flow channel 40 (composed of channel sections 48, 49, and 50), can flow into the drain pipe 9 via the siphon outlet 43.

[0060] Thus, it is a flow channel 40, wherein the siphon inlet 41 is located at a first end of the flow channel 40 and the siphon outlet 43 is located at a second end of the flow channel 40.

[0061] Figure 4Figure 1 shows another embodiment with a flow-optimized course of the flow channel 40. This is a simplified sectional view, showing only the most important elements. In this embodiment, the first and third parts 18, 20 of the siphon body are fixedly installed below the collecting channel 14.

[0062] The left, first part, i.e., the connection part 18, is reduced to its inner wall, represented by surface 32; the rightmost, third part, i.e., the outlet part 20, is reduced to its inner wall, represented by surface 39. Between these two surfaces 32 and 39, there is a receiving space in which the reservoir part 19 can be inserted opposite the direction of arrow 31.

[0063] Above surfaces 32 and 39, the shower channel profile 8 extends horizontally on both sides next to the collection channel 14. The tiles 7 are laid on the shower channel profile.

[0064] The surface 32 transitions at the lower area into a deflecting surface 33, which transitions into a subsequent deflecting surface 34, which leads into a sealing surface 36, which is arranged horizontally.

[0065] Surface 39 transitions towards the collecting channel 14 into the curved deflecting surface 35, which transitions into a sealing surface 42 that is arranged vertically.

[0066] The cover rail 16 forms an upper cover for the collection channel 14, and is mounted at a distance from the collection channel to allow water to flow into the siphon body. The reservoir section 19 has a wall 23 that is curved towards the collection channel 14 and has an inlet surface 21. A vertical side surface 22 adjoins the inlet surface 21. On the opposite side of the wall 23 is another vertical side surface 24.

[0067] Furthermore, the reservoir section 19 has another wall 28, with a left-side side surface 27 and a right-side side surface 29.

[0068] In the assembled state of the siphon body 30, as it is in Figure 5As shown, the end face of the wall 28 with its sealing surface 26 comes into contact with the opposite sealing surface 36, which is located at the end of the deflection surface 34. This sealing surface 36 also runs horizontally. Simultaneously, the sealing surface 42 comes into contact with the sealing surface 45. The sealing action of all sealing surfaces creates a fluid-conducting flow channel 40.

[0069] The in Figure 5The section shown illustrates the compound flow channel 40. The water flowing in via the collecting channel 14 is directed through the inlet surface 21 into the first channel section 48, which is laterally bounded by the side surface 32 and the deflection surface 33. The water then flows, diverted by the deflection surfaces 33 and 34, around the wall 23 and through channel section 49, which is laterally bounded by the side surfaces 24 and 27. The water then flows, diverted by the deflection surfaces 25 and 35, around the wall 28 and through channel section 50, which is laterally bounded by the side surface 29 and surface 39. Finally, the water flows into the drain pipe 9, which extends to the right of the outlet part 20 of the siphon body 30.

[0070] Figure 6 shows a opposite Figure 5A slightly modified embodiment, wherein opposite the inlet surface 21 there is an inlet surface 38, also inclined, which opens into the vertical surface 32. The first channel section 48 is formed by the inlet surfaces 21, 38 and the side surfaces 32, 22. The second channel section 49 is formed by the side surfaces 24, 27, and the third channel section 50 by the side surfaces 29, 39, and so on. The water can flow through this flow channel 40 in the flow direction 47.

[0071] The siphon body 30 consists of the connection part 18, with the first channel section 48, the reservoir part 19, with the second channel section 49 and the outlet part 20, with the channel section 50.

[0072] In Figure 6 The barrier layer 44 is shown, which is located in canal sections 48 and 49, with the water column being dammed up by the impoundment section 19.

[0073] Figure 7Figure 1 shows a further embodiment with a cover rail 16' integrated above the reservoir section, the curved underside of which forms the deflection surfaces 35, 36. The cover rail 16' has a sealing surface 46 on the right side, which, in the assembled state, corresponds to an opposing sealing surface 37 of the shower channel profile. The reservoir section 19 has the two walls 23, 28.

[0074] The wastewater can enter the siphon 10 through the siphon inlet 41.

[0075] The siphon inlet 41 according to this embodiment allows the wastewater to flow vertically along the fall line from the siphon inlet 41 into the flow channel 40. The flow channel 40 has a first change of direction section and a second change of direction section, each of which deflects the water flow by more than 180° and then allows it to flow substantially horizontally into the drain pipe 9.

[0076] The siphon according to the invention makes it easy for a plumber to gain access to the drain pipe by removing the reservoir part 19, in order to remove deeper blockages in the wastewater pipe in the house.

[0077] The siphon 10 is preferably made entirely or partially of plastic and / or metal; of course, a combination of metal and plastic parts is also conceivable. Drawing legend

[0078] 1 Siphon 2 Shower channel 3 Edge 4 Collection channel 5 Inlet opening 6 Cover rail 7 Tile 8 Shower channel profile 9 Drain pipe 10 Siphon 11 12 Shower channel 13 Edge 14 Collection channel 15 Inlet opening 16, 16' Cover rail 17 Outlet 18 Connection part (first) 19 Backwater section 20 Outlet part (third) 21 Inlet surface 22 Side surface 23 Wall 24 Side surface 25 Circulation surface 26 Sealing surface 27 Side surface 28 Wall 29 Side surface 30 Siphon body 31 Arrow direction 32 Surface 33 Deflection surface 34 Deflection surface 35 Deflection surface 36 Sealing surface 37 Sealing surface 38 Inlet surface 39 Surface 40 Flow channel 41 Siphon inlet 42 Sealing surface 43 Siphon outlet 44 Barrier layer 45 Sealing surface 46 Sealing surface 47 Flow direction 48 Channel section (first) 49 Channel section (second) 50 Channel section (third)

Claims

1. Siphon (1, 10) for a sanitary fitting, in particular for a shower channel (2, 12), wherein the siphon (1, 10) has a siphon body (30) for installation in the area of ​​the outlet (17) of the sanitary fitting, wherein the siphon body (30) has a first connection part (18) with a siphon inlet (41) which is connected in a fluid-conducting manner to a central reservoir part which in turn is connected in a fluid-conducting manner to an outlet part (20) with an outlet (17) of the sanitary fitting, characterized by the fact that at least the middle reservoir part (19) is designed as a pluggable deflection cassette, which is sealed with associated stop edges against the surfaces of the connection part (18) and the outlet part (20).

2. Siphon (1) according to claim 1, characterized by the fact that the connection part (18), the reservoir part (19) and the outlet part (20) are arranged parallel to each other.

3. Siphon (1), according to claim 1 or 2, characterized by the fact thatthe parts (18, 19, 20) each include a section of a flow channel (40), so that in a compound siphon body (30) a flow channel (40) with a continuous pipe wall is formed.

4. Siphon (1) according to one of claims 1 to 3, characterized by the fact that the reservoir part (19) is removable.

5. Siphon (1) according to one of claims 1 to 4, characterized by the fact that the connection part (18) and the outlet part (20) are permanently installed below the shower channel (12).

6. Siphon (1) according to one of claims 3 to 5, characterized by the fact that a first channel section (48) of the flow channel (40) in the connecting part (18), starting from the siphon inlet (41) runs vertically downwards.

7. Siphon (1) according to one of claims 3 to 6, characterized by the fact that a second channel section (49) of the flow channel (40) runs vertically upwards in the reservoir section (19).

8. Siphon (1) according to one of claims 3 to 7, characterized by the fact thata third channel section (50) of the flow channel (40) runs vertically downwards in the outlet section (20) and opens into the siphon outlet (43).

9. Siphon (1) according to one of claims 6 to 8, characterized by the fact that the first canal section (48) and the second canal section (49) are connected to each other via a canal bend.

10. Siphon (1) according to one of claims 7 to 9, characterized by the fact that the second canal section (49) and the third canal section (50) are connected to each other via a canal bend.

11. Siphon (1) according to one of claims 6 to 10, characterized by the fact that the vertical wall of a channel section (48, 49, 50) is formed by two parallel adjacent parts of the siphon body.

12. Siphon (1) according to one of claims 1 to 11, characterized by the fact that After removal of the reservoir part (19) the siphon outlet (43) is accessible with the drain pipe (9).

13. Siphon (1) according to one of claims 7 to 12, characterized by the fact thatwithin the first and second canal sections (48, 49) there is a barrier layer (44) formed by a column of water, the level of which is above the top of the drain pipe (9).

14. Siphon (1) according to any one of claims 1 to 13, characterized by the fact that the shower channel (12) has a width of 20 millimeters.

15. Siphon (1) according to claim 1, characterized by the fact that The connecting part (18) and the outlet part (20) form a wedge-shaped receiving space between them, for receiving a similarly wedge-shaped reservoir part (19).

Images