Deflecting pipe piece

Abstract

The invention relates to a deflecting pipe piece (1) for discharging a multi-phase flow medium, in particular consisting of water, solids, and air, comprising a first pipe section (2) that extends along a first central axis (M1), a deflecting section (3) that adjoins the first pipe section (1) and comprises a deflecting outer side (4) and a deflecting inner side (5), said deflecting section (3) deflecting the flow medium with respect to the first pipe section (3), a second pipe section (6) that adjoins the deflecting section (3) and extends along a second central axis (M2), and a guide structure (7), which is arranged in the interior of the deflecting section (3) on the deflecting outer side (5), for guiding the flow medium in the deflecting section (3), wherein the first pipe section (2) has a discharge edge (8), from which the flow medium is released during the flow process, and the discharge edge (8) lies relative to the guide structure (7) such that the flow medium can be guided onto the guide structure (7).

Description

[0001] TITLE

[0002] DEFLECTION PIPE PIECE

[0003] TECHNICAL FIELD

[0004] The present invention relates to a diverting pipe piece according to independent claims 1 and 9 and to a sanitary arrangement according to claim 21.

[0005] STATE OF THE ART

[0006] Diverters or splitters for toilet bowls are well-known in the art. Diverters or splitters connect a toilet bowl or urinal to a waste pipe. Typically, the waste pipe runs horizontally or at a slight incline to the horizontal.

[0007] Practical experience has led to a desire to design longer sewer pipes with no or only a slight gradient. Another desire is to reduce the flush volume when flushing a toilet. This presents a conflicting objective, as a large flush volume typically provides a high flushing performance for the sewer line, while a small flush volume provides a low flushing performance.

[0008] PRESENTATION OF THE INVENTION

[0009] The present invention is based on an object of providing a diverting pipe section which, with the same flushing water consumption, increases the flushing performance of a wastewater line arranged downstream of the diverting pipe section, so that the wastewater line can be made comparatively longer, or which provides the same or an improved flushing performance with lower flushing water consumption.

[0010] This object is achieved by the deflection pipe section according to claim 1 and the deflection pipe section according to claim 9. The deflection pipe section according to claim 1 serves to discharge a multi-phase flow medium, in particular consisting of water, solids, and air. The deflection pipe section comprises a first pipe section which extends along a first central axis, a deflection section adjoining this first pipe section and having an outer deflection side and an inner deflection side, which deflection section deflects the flow medium with respect to the first pipe section, a second pipe section adjoining the deflection section and extending along a second central axis, and a guide structure arranged inside the deflection section on the outer deflection side for guiding the flow medium in the deflection section.The first pipe section has a discharge edge from which the flow medium partially detaches during the flow process, wherein the discharge edge is positioned relative to the guide structure in such a way that the flow medium can be guided from the discharge edge to the guide structure.

[0011] After the flow medium detaches at the discharge edge, it flows toward the guide section, where the flow medium is redirected from the first pipe section through the guide section into the second pipe section. The arrangement of the guide section, onto which the flow medium impinges from the discharge edge, allows for a low-loss redirection of the flow medium, allowing it to enter the second pipe section and a wastewater pipe connected to the second pipe section at a higher velocity.

[0012] Depending on the installation position of the diverter pipe section, different separation processes can occur at the discharge edge. If the first central axis is inclined to the vertical in the installation position, the water is guided by the separation edge along the inner wall of the diverter pipe section and then impacts the guide structure more laterally. Due to the effect of gravity, the solids will fall downwards essentially vertically from the discharge edge, causing them to impact the guide section more centrally. During operation, however, there will not be a complete separation between the water and the solids; instead, a mixture of water and solids will be guided, meaning that some of the water will flow centrally onto the guide structure and some of the solids will impact the guide structure from the sides.This ensures that the same rinsing performance can be achieved with a smaller rinsing water volume as with a higher rinsing water volume, or that an improved rinsing performance can be achieved with the same rinsing water volume.

[0013] The drainage edge is preferably curved. The drainage edge preferably lies in a plane that, when viewed in the installed position, is oriented at an angle to a horizontal plane. The drainage edge is preferably provided by the second pipe, with the drainage edge simultaneously being the pipe end.

[0014] Preferably, a portion of the flow medium flows as a free jet away from the discharge edge and impinges on the guide structure as a free jet, while another portion of the flow medium is guided laterally through the side walls of the respective section. Regarding the flow direction, the jet flows unguided at the front, i.e., toward the second pipe section, and at the rear, thus forming the free jet.

[0015] Preferably, the discharge edge is positioned at a certain distance from the guide structure. This means that a portion of the flow medium flows over this distance as a free jet.

[0016] Particularly preferably, the space between the drainage edge and the guide structure is designed as an open space. This open space can be provided, for example, by a third pipe section, as explained below, or by an indentation.

[0017] Preferably, the guide structure extends into an area that, when viewed in the installed position of the deflection pipe section, lies below the discharge edge. In other words, even those parts of the multiphase flow medium that reach the discharge edge at low velocity and fall downwards from the discharge edge in a more vertical direction will encounter the guide structure.

[0018] When the deflection pipe section is installed, the second central axis is essentially horizontal, and the guide structure has a gradient relative to the horizontal in the direction of flow. The flow medium therefore flows downward along the guide structure. The first central axis runs at an angle to the horizontal. Viewed in a sectional plane spanned by the first central axis and the second central axis, a lower intersection point between a starting edge of the guide structure and an upper intersection point between the discharge edge and the sectional plane lie on a common imaginary straight line. In a first preferred variant, the straight line runs perpendicular to the second central axis.In a second preferred variant, the straight line runs at an angle to the second central axis, wherein the angle is formed such that the second intersection point is offset from the first intersection point of the second pipe section, opposite to the flow direction of the flow medium. This means that the second intersection point lies behind the first intersection point, viewed in the flow direction.

[0019] Preferably, the diverting pipe section has a third pipe section, wherein the third pipe section extends along a third central axis. The third central axis runs parallel, offset, or collinear with the second central axis. The third pipe section can be connected to another wastewater pipe, wherein the flow medium flowing in from there is guided through the diverting pipe section to the second pipe section.

[0020] Preferably, the third pipe section is located below the first pipe section when viewed in the installed position and opens into the first pipe section and / or the second pipe section.

[0021] In the installed position, the deflection pipe section is preferably positioned such that the second central axis and the third central axis run horizontally, and the first central axis is inclined at an angle to the horizontal. The guide structure has a gradient in the flow direction from the third pipe section into the second pipe section.

[0022] Preferably, a shoulder is arranged between the third pipe section and the second pipe section such that, in the installed position, the flow medium flows downwards over this shoulder, counter to the vertical direction, into the second pipe section. The arrangement of the shoulder provides the flow medium with a gradient, which ensures that the flow medium flowing from the third pipe section into the second pipe section is redirected with as little or no loss as possible. The shoulder is preferably provided by the guide structure. Preferably, viewed in the installed position, the third central axis lies above the second central axis.

[0023] Preferably, an offset between the second central axis and the third central axis corresponds to at most half the diameter of the third pipe section.

[0024] Preferably, the diameter of the third pipe section is smaller than the diameter of the first pipe section and / or the second pipe section. In other variants, it is also conceivable for all pipe sections to have the same diameter.

[0025] Particularly preferably, the diameters of the pipe sections are in a range of 75 to 110 millimeters. In a particularly preferred embodiment, the diameter of the first pipe section is 90 millimeters, the diameter of the second pipe section is 90 millimeters, and the diameter of the third pipe section is 75 millimeters. In another particularly preferred embodiment, the diameter of the first pipe section is 90 millimeters, the diameter of the second pipe section is 110 millimeters, and the diameter of the third pipe section is 75 millimeters. Other diameters are also conceivable.

[0026] Preferably, the guide structure extends from the second pipe section into the third pipe section in such a way that the guide structure provides a transition between the third pipe section and the second pipe section. The second pipe section and the third pipe section are preferably arranged relative to one another in such a way that the guide structure has a gradient when viewed in the installed position and / or in the flow direction of the multi-phase flow medium. In particular, as already mentioned above, the guide structure extends into an area which, when viewed in the installed position of the deflection pipe section, lies below the discharge edge. The gradient of the guide structure prevents the flow medium, which flows from the first pipe section onto the guide structure, from flowing back towards the third pipe section.

[0027] Preferably, the inner wall of the second pipe section has a base line. The inner wall of the third pipe section also has a base line. The base line of the third pipe section is spaced from the base line of the second pipe section at a distance transverse to the base lines, wherein the distance is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section. The distance is preferably greater than 5 millimeters or greater than 10 millimeters.

[0028] The guide structure preferably has a central guide section and two lateral guide sections, with one of the lateral guide sections being located laterally to the central guide section. The central guide section is arranged offset from the lateral guide sections with respect to the interior of the deflection section. The offset arrangement of the central guide section relative to the two lateral guide sections has the advantage that the flow medium can be guided in the flow direction via the deflection section. In the installed position in which the first central axis is inclined at an angle to the vertical or perpendicular direction and the second central axis is substantially perpendicular to the vertical or perpendicular direction, part of the flow medium will flow from the separation edge onto one of the lateral guide sections and another part will flow from the separation edge onto the central guide section.Further details of these guide sections are explained below, whereby these details can optionally be used on the deflection pipe piece according to claim 1 or claim 9.

[0029] The deflection pipe section according to claim 9 serves to discharge a multi-phase flow medium, in particular consisting of water, solids, and air. The deflection pipe section comprises a first pipe section extending along a first central axis, a deflection section adjoining this first pipe section and having an outer deflection side and an inner deflection side, which deflection section deflects the flow medium relative to the first pipe section, a second pipe section adjoining the deflection section and extending along a second central axis, and a guide structure arranged inside the deflection section on the outer deflection side for guiding the flow medium in the deflection section. The central guide section is arranged offset from the lateral guide sections with respect to the interior of the deflection section.The offset arrangement of the central guide section to the two lateral guide sections has the advantage that the flow medium can be guided in the flow direction via the deflection section.

[0030] Optional features for all of the deflection pipe sections described herein are described below. Preferably, the central guide section is located between the two lateral guide sections. Preferably, the guide sections merge into one another over the length of the guide structure and jointly open into the cylindrical region of the second pipe section.

[0031] Preferably, portions of the central guide section or the central guide section are offset into the interior space relative to portions of the lateral guide sections or the lateral guide sections. Viewed in cross-section transverse to the curvature axis, the central guide section lies above the lateral guide sections.

[0032] Preferably, portions of the lateral guide sections or the lateral guide sections are offset into the interior space relative to portions of the central guide section or the central guide section. Viewed in cross-section transverse to the curvature axis, the central guide section lies below the lateral guide sections.

[0033] Preferably, viewed in cross-section transverse to the first or second central axis, the width of the central guide section decreases with increasing distance from the first pipe section or toward the second pipe section. The width of the lateral guide sections increases with increasing distance from the first pipe section or toward the second pipe section.

[0034] Preferably, the distance between the central guide section and the lateral guide sections, viewed perpendicular to the second central axis and in a reference plane spanned by the first central axis and the second central axis, decreases with increasing distance from the first tube section. Particularly preferably, the guide sections merge to a common height; in particular, the guide sections merge into the cylindrical region of the second tube section.

[0035] Preferably, the distance in the transition region between the deflection section and the second pipe section tends towards zero, the minimum distance being reached at the entrance to the second pipe section.

[0036] Preferably, the central guide section has a guide surface and a wall surface is arranged laterally to the guide surface, which wall surface connects the guide surface to the lateral guide sections.

[0037] Preferably, the guide surface is designed in cross-section transverse to the first or second central axis in such a way that a recess is provided which extends outwards with respect to the side edges which laterally delimit the guide surface with respect to the interior of the deflection section.

[0038] In one variant, the recess has the shape of a concave curve, extending from side edge to side edge of the guide surface. In another variant, the recess has the shape of a V or a U.

[0039] Preferably, the depth of the recess with respect to the side edges extends transversely to the first or second central axis, seen from the first pipe section to the second pipe section, and is different across the deflection section.

[0040] Particularly preferably, the depth increases in a first partial area and decreases in a second partial area. Alternatively, the depth decreases across the deflection section with increasing distance from the first pipe section.

[0041] Further optional features of the deflection pipe section are described below:

[0042] Preferably, the deflection pipe section is designed such that the flow medium is deflected by the angle (a, alpha) between the first central axis and the second central axis. The guide structure is arranged and designed such that, viewed in a sectional plane spanned by the first central axis M1 and the second central axis M2, at the point of impact of the flow medium on the guide structure, the guide structure provides a deflection by a first angular part (a1, alpha1) of the said angle (a, alpha), and that at the transition from the guide structure to the second pipe section, the guide structure (7) provides a deflection by a second angular part (a2, alpha2) of the said angle (a, alpha).

[0043] Preferably, the guide structure runs along a base line in the region of the transition to the second pipe section, wherein the base line is a straight line, and wherein the straight line runs at an angle (ß, beta) of 160° to 175° to the base line of the second pipe section. Preferably, the base line of the guide structure has a curved section, wherein the curved section marks the beginning of the guide structure.

[0044] Preferably, the curved section merges into the section of the base line, which is a straight line.

[0045] The expression "inside the deflection section" with regard to the arrangement of the guide structure is to be understood as meaning that the guide structure is arranged at least partially in the deflection section and that the guide structure can protrude into the other pipe sections on both sides of the deflection section.

[0046] Preferably, the guide structure is arranged exclusively on the outer side of the deflection section and not on the inner side. The outer side of the deflection section is the side of the deflection section that has the largest deflection radius, and the inner side of the deflection section is the side of the deflection section that has the smallest deflection radius.

[0047] The second central axis is inclined at an angle to the first central axis. The flow medium is deflected around the deflection section by this angle. The angle (δ, delta) between the first central axis and the second central axis is preferably greater than 120°. The angle is particularly preferably in the range of 125° to 145°, in particular 135°.

[0048] Preferably, the guide structure extends completely over the deflection section. This means that the guide structure has a length that essentially corresponds to that of the deflection section. Alternatively, the guide element or guide wall extends partially over the deflection section.

[0049] Regardless of the length of the guide structure within the deflection section, the guide element or guide wall can extend into one or all of the pipe sections. Particularly preferably, the guide structure is arranged such that it extends from the deflection section into the second pipe section.

[0050] Particularly preferably, the guide structure is provided by an indentation from the outside in the region of the deflection outer side. Particularly preferably, the first pipe section and / or the second pipe section have a cylindrical, in particular a circular-cylindrical, cross-section.

[0051] The deflection pipe section, i.e., the first pipe section, the deflection section, and the second pipe section, as well as the guide structure and the flow divider, are preferably formed in one piece. Particularly preferably, the deflection pipe section is made of plastic, in particular by a blow molding process or an injection molding process. In another particularly preferred variant, multi-part production is also conceivable, with the individual parts being welded together, so that a one-piece structure can be created. For example, the deflection section can be produced by a blow molding process, and the two pipe sections by an injection molding process, with the parts then being welded together.

[0052] Preferably, said pipe sections have a cylindrical portion. The cylindrical pipe section preferably provides a socket portion for inserting a pipe or for welding a pipe.

[0053] In use, the fluid flows through the diverter pipe section in such a way that it does not completely fill the cross-section, but essentially fills half or less. This is a partially filled pipe section that can be used in a partially filled pipe system.

[0054] In summary, the diverter bend according to the present invention has the advantage that, due to the arrangement of the guide structure and the other optional features, the hydraulic resistance of the diverter can be reduced. This increases the flushing performance of the sewer line connected to the diverter bend.

[0055] An arrangement according to claim 21 comprises a diverting pipe piece as described above, a sanitary article, such as a toilet bowl or a urinal, with a connection area for connecting a drain pipe socket, wherein the drain pipe socket opens into the first pipe section of the diverting pipe piece and wherein a drain pipe is connected to the second pipe section.

[0056] The drain pipe connection between the sanitary article and the diverting pipe section can be composed of one or more pipe sections. The drain pipe connection preferably has an outlet bend. The outlet bend deflects the flow, preferably by an angle of 90°, in the direction of flow.

[0057] The pipe length of the drain pipe socket is preferably in the range of 200 to 800 millimeters. This means that the first pipe section of the diverter pipe is spaced from the sanitary fitting by this length.

[0058] Further embodiments are specified in the dependent claims.

[0059] BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Preferred embodiments of the invention are described below with reference to the drawings, which are for illustrative purposes only and are not to be construed as limiting. In the drawings:

[0061] Fig. 1 is a first perspective view of a deflection pipe piece according to a first embodiment of the present invention;

[0062] Fig. 2 is a second perspective view of a deflection pipe section according to Figure 1;

[0063] Fig. 3 is a side view of the deflection pipe section according to the preceding figures 1 and 2;

[0064] Fig. 4 is a partially sectioned plan view of the deflection pipe section according to the preceding figures 1 to 3;

[0065] Fig. 5 is a sectional view of the deflection pipe section according to the preceding figures 1 to 4 through a sectional plane;

[0066] Fig. 6 is a perspective view of Figure 5;

[0067] Fig. 7a is a sectional view through the section line AA in Figure 3;

[0068] Fig. 7b is a sectional view through the section line BB in Figure 3;

[0069] Fig. 7b is a sectional view through the section line CC in Figure 3;

[0070] Fig. 7d is a sectional view through the section line DD in Figure 3;

[0071] Fig. 8 is a first perspective view of a deflection pipe piece according to a second embodiment of the present invention;

[0072] Fig. 9 is a second perspective view of a deflection pipe section according to Figure 8;

[0073] Fig. 10 is a side view of the deflection pipe section according to the preceding figures 8 and 9;

[0074] Fig. 11 is a partially sectioned plan view of the deflection pipe section according to the preceding Figures 8 to 10;

[0075] Fig. 12 is a sectional view of the deflection pipe section according to the preceding figures 8 to 11 through a sectional plane;

[0076] Fig. 13 is a perspective view of Figure 5;

[0077] Fig. 14a is a sectional view through the section line AA in Figure 10;

[0078] Fig. 14b is a sectional view through the section line BB in Figure 10;

[0079] Fig. 14b is a sectional view through the section line CC in Figure 10; and

[0080] Fig. 14d is a sectional view through the section line DD in Figure 10.

[0081] DESCRIPTION OF PREFERRED EMBODIMENTS

[0082] Figures 1 to 6 show a first embodiment of a deflection pipe section according to the present invention, and Figures 7 to 14 show a second embodiment of a deflection pipe section of the present invention. Identical parts are provided with identical reference numerals, and reference is made to the respective descriptions.

[0083] The diverter pipe sections of both designs are used to guide a multiphase flow medium, which consists primarily of water, solids, and air. The diverter pipe sections are preferably used in conjunction with a toilet bowl or urinal for draining wastewater.

[0084] The deflection pipe section 1 of both embodiments comprises a first pipe section 2, a deflection section 3 adjoining the first pipe section 2 and a second pipe section 6. The first pipe section 2 extends along a first central axis M1 and the second pipe section 6 extends along a second central axis M2.

[0085] The deflection section 3 connects the two pipe sections 2, 6 and deflects the flow medium from the first pipe section 2, then guides it into the second pipe section 6. The two pipe sections 2, 6, or the two central axes M1, M2, are inclined to each other at an angle a (alpha). The angle a (alpha) between the first central axis M1 and the second central axis M2 is preferably greater than 120°. The angle is particularly preferably in the range of 125° to 145°, in particular 135°.

[0086] The deflection section 3 further comprises an inside in the deflection section 3 on the

[0087] The deflection outer side 5 has a guide structure 7 for guiding the flow medium in the deflection section 3. The guide structure 7 is arranged such that the flow medium can be guided through the deflection section 3 with the lowest possible flow losses.

[0088] The shape of the guide structure can be the same or similar in both embodiments. Preferably, the guide structure 7 has a central guide section 15 and two lateral guide sections 16. The lateral guide sections 16 extend alongside the central guide section 15, which is located centrally between the two lateral guide sections. From the sectional views in Figures 7a-7d and 14a-14d, it is clear that the central guide section 15 is offset from the lateral guide sections 16 with respect to the interior space 17 of the deflection section 3.

[0089] In the embodiment shown, the central guide section 15 is located above the lateral guide sections 16. This is shown in the cross-sectional views of Figures 7a to 7d and 14a to 14d. The central guide section 15 is spaced apart from the lateral guide sections. Generally speaking, portions of the central guide section 15 or the central guide section 15 are offset into the interior space 17 with respect to portions of the lateral guide sections 16 or the lateral guide sections 16.

[0090] In another embodiment, the central guide section 15 is located below the lateral guide sections 16. Generally speaking, partial regions of the lateral guide sections 16 or the lateral guide sections 16 are offset into the interior space 17 with respect to partial regions of the central guide section 15 or the central guide section 15.

[0091] Viewed in cross-section transverse to the first or second central axis M1, M2, the central guide section 15 has a width B15 and the lateral guide sections 16 have a width B16. The width B15 of the central guide section 15 decreases with increasing distance away from the first pipe section 2 or towards the second pipe section 6. As the width B15 of the central guide section 16 decreases, the width B16 of the lateral guide sections 16 increases with increasing distance away from the first pipe section 2 or towards the second pipe section 6. The increase or decrease in the widths B15, B16 preferably occurs continuously over the length of the deflection section 3. Figures 7a and 14b show a sectional view in the region of the end of the deflection section 3, i.e. close to the second pipe section 6. Here, the increase or decrease in the widths B15, B16 can be clearly seen.

[0092] From Figures 5 and 6 it can be seen that the distance between the central guide section 15 and the lateral guide sections 16, viewed at right angles to the second central axis M2 and in a reference plane spanned by the first central axis M1 and the second central axis M2, decreases with increasing distance from the first pipe section 2. In the embodiments shown, the distance in the transition region between the deflection section 3 and the second pipe section 6 tends towards zero. The minimum distance is reached at the entrance to the second pipe section 6. This means that the guide sections 15, 16 become similar over the length of the deflection section 3 and then merge together into the cylindrical second pipe section 6. In this regard, reference is made to Figures 7a and 14a, which show this feature.

[0093] From the sectional views of Figures 7a-7d and 14a-14d, it can be seen that the central guide section 15 has a guide surface 18 and that a wall surface 19 is arranged laterally to the guide surface 15, which wall surface 19 connects the guide surface 18 to the lateral guide sections 16. The lateral guide sections are provided by the wall surface 19 and the wall of the deflection section.

[0094] The guide surface 18 is designed in cross-section transverse to the first and second central axes M1, M2, respectively, such that a recess 20 is provided. The recess represents a type of channel and provides additional guidance for the flow medium. The recess extends outward relative to the interior space 17 of the deflection section 3, relative to the side edges 21 that laterally delimit the guide surface 18.

[0095] Preferably, the depth of the recess 20 with respect to the side edges 21 extends transversely to the first and second central axes M1, M2, respectively, from the first pipe section 2 to the second pipe section 6, as seen across the deflection section. This can be seen from the sectional views in Figures 7a-7d and 14a-14d.

[0096] The shape of the recess can be designed with a concave curve. The curve then extends from side edge 21 to side edge 21. From the sectional views in Figures 5 and 12, it can be seen that the flow medium is deflected by the angle a, alpha between the first central axis M1 and the second central axis M2. This means that the flow medium undergoes a total deflection by the angle a, alpha. The guide structure 7 is arranged and designed such that, at the point of impact of the flow medium on the guide structure 7, the guide structure 7 provides a deflection by a first angular portion a1, alpha1 of the aforementioned angle a, alpha, and that, at the transition from the guide structure 7 to the second pipe section 6, the guide structure 7 provides a deflection by a second angular portion a2, alpha2 of the aforementioned angle a, alpha.

[0097] Preferably, the guide structure 7 runs along a base line 22 in the region of the transition to the second pipe section 6. The base line 22 is a straight line G. The straight line G runs at an angle ß, beta of 160° to 175° to the base line 22 of the second pipe section 6. The base line 22 can extend as a straight line over the entire length of the guide structure 7. In the embodiments shown, the base line extends as a straight line over most of the entire length of the guide structure 7, with the base line 22 having a curved section F at the beginning of the guide structure. However, the curved section F only extends over a small portion of the total length of the deflection section 3. The guide structure itself is therefore essentially straight and, in comparison to the deflections around the aforementioned angular parts, does not provide a significant deflection.

[0098] In the first embodiment according to Figures 1 to 7, the first pipe section 2 has a drainage edge 8. In the installed state of the deflection pipe section 1, the drainage edge 8 is positioned such that the flow medium flows over the drainage edge 8. At the drainage edge 8, the flow medium detaches from the inside of the first pipe section 2 and flows at least partially as a substantially free jet onto the guide structure 7. The drainage edge 8 and the guide structure 7 are positioned relative to one another such that the flow medium flowing freely from the drainage edge 8 can be directed to the guide structure 7 and is guided by the guide structure 7 through the deflection section 3. If the first center axis M1 is inclined at an angle to the vertical direction in the installed position, part of the flow medium is guided over the wall region that laterally adjoins the drainage edge 8, and another part of the flow medium is guided over the drainage edge 8.The part that flows over the wall area then hits the guide structure 7 laterally and the part that flows over the drainage edge 8 hits the guide structure 7 essentially in the direction of the vertical direction.

[0099] The design of the guide structure 7 according to the first embodiment will now be explained in more detail with reference to Figures 5 and 6. In the embodiment shown, the guide structure 7 is arranged such that it extends into an area which, when viewed in the installed position of the deflection pipe section 1, lies below the discharge edge 8. This can be clearly seen in Figure 5. This ensures that the flow medium flowing away from the discharge edge 8 is directed onto the guide structure 7. When viewed in the installed position, the guide structure 7 has a gradient from the third pipe section 10 to the second pipe section 6, so that the flow medium, coming from the discharge edge 8, flows downwards through the guide structure 7 during the discharge process.

[0100] In a section plane spanned by the first central axis M1 and the second central axis M2, a lower intersection point S1 between a starting edge 9 of the guide structure 7 and the section plane and an upper intersection point S2 between the discharge edge 8 and the section plane lie on a common imaginary straight line G. The section plane is the drawing surface of Figure 5. The imaginary straight line G runs at a right angle or at an angle to the second central axis M2. In the case of a right angle, the two intersection points S1, S2 lie directly above one another in the installed position. In the case of an angled section, the imaginary straight line G runs at an angle to the second central axis M2 such that the second intersection point S2 is offset from the second pipe section 6 with respect to the first intersection point S1, opposite to the flow direction of the flow medium.

[0101] In the first embodiment, as can be seen from the figures, a third pipe section 10 is arranged in addition to the first pipe section 2 and the second pipe section 6. In an installed situation, the first pipe section 2 is typically connected to a drain pipe of a toilet bowl or urinal, and the third pipe section 10 can be connected to a waste pipe of another sanitary appliance. The second pipe section 6 is connected to another waste pipe.

[0102] In the embodiment shown, the third pipe section 10 opens into the other sections of the deflection pipe section 1 in the region of the deflection section 3. The third pipe section 10 extends along a third central axis M3. The third central axis M3 runs parallel and offset to the second central axis M2 and, in the installed position, lies above the second central axis M2. The offset is designated by the reference symbol V. Due to the offset and the diameter ratios, a step is formed between the third pipe section 10 and the second pipe section 6.The dimensioning of this shoulder can preferably be designed as follows: The inner wall 11 of the second pipe section 6 has a base line 12, and the inner wall 13 of the third pipe section 10 has a base line 14, wherein the base line 14 of the third pipe section 10 is at a distance A transverse to the base lines 12, 14, from the base line 12 of the second pipe section 6, wherein the distance A is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section 6. In the installed position, the flow medium flows over this shoulder against the vertical direction downwards into the second pipe section 6. The shoulder is essentially provided here by the guide structure 7.

[0103] The guide structure 7 extends from the second pipe section 6 into the third pipe section 10. The guide structure 7 thus provides a transition between the third pipe section 10 and the second pipe section 6.

[0104] LIST OF REFERENCE SYMBOLS

[0105] Deflection pipe section first pipe section Deflection section A Distance Deflection outside B15 Width of the middle Deflection inside guide section second pipe section B16 Width of the lateral

[0106] Guide structure guide section discharge edge G straight starting edge K straight third pipe section F curved section inner wall second M1 first central axis

[0107] Pipe section M2 second central axis

[0108] Baseline second M3 third center axis pipe section 51 lower intersection point inner wall third 52 upper intersection point pipe section V offset

[0109] Baseline third pipe section middle guide section side guide section interior

[0110] Guide surface Wall surface

[0111] recess side edge

[0112] Baseline management structure

Claims

PATENT CLAIMS 1. A deflection pipe section (1) for discharging a multi-phase flow medium, in particular consisting of water, solids, and air, comprising a first pipe section (2) extending along a first central axis (M1), a deflection section (3) adjoining this first pipe section (2) and having a deflection outer side (4) and a deflection inner side (5), which deflection section (3) deflects the flow medium with respect to the first pipe section (2), a second pipe section (6) adjoining the deflection section (3) and extending along a second central axis (M2), and a guide structure (7) arranged on the inside of the deflection section (3) on the deflection outer side (5) for guiding the flow medium in the deflection section (3), characterized in that the first pipe section (2) has a discharge edge (8) from which the flow medium partially detaches during the flow process, wherein the discharge edge (8) is arranged in such a way to the guide structure (7) lies,that the flow medium can be fed to the guide structure (7)., 2. Deflection pipe section (1) according to claim 1, characterized in that the guide structure (7) extends into a region which, when viewed in the installed position of the deflection pipe section (1), lies below the discharge edge (8); and / or that, when viewed in the installed position, the second central axis (M2) lies substantially horizontally and that the guide structure (7) has a gradient relative to the horizontal when viewed in the flow direction.

3. Deflection pipe section (1) according to one of the preceding claims, characterized in that, viewed in a sectional plane spanned by the first central axis (M1) and the second central axis (M2), a lower intersection point (S1) between a starting edge (9) of the guide structure (7) and the sectional plane and an upper intersection point (S2) between the discharge edge (8) and the sectional plane lie on a common imaginary straight line (G), wherein the straight line (G) runs at right angles to the second central axis (M2) or wherein the straight line (G) runs at an angle inclined to the second central axis (M2), wherein the angle is formed such that the second intersection point (S2) is offset from the second pipe section (6) opposite to the flow direction of the flow medium with respect to the first intersection point (S1).

4. Deflection pipe section (1) according to one of the preceding claims, characterized in that the deflection pipe section (1) has a third pipe section (10), wherein the third pipe section (10) extends along a third central axis (M3), wherein the third central axis (M3) runs parallel and offset to the second central axis (M2); or wherein the third central axis (M3) runs collinear to the second central axis (M2).

5. Deflection pipe section (1) according to claim 4, characterized in that the third pipe section (10), seen in the installed position, extends below the first pipe section (2) into the first pipe section (2) or the second pipe section (6) orthe deflection section (3); and / or that a shoulder is arranged between the third pipe section (10) and the second pipe section (6) such that, in the installed position, the flow medium flows downwards over this shoulder against the vertical direction into the second pipe section (6); and / or that, viewed in the installed position, the third central axis (M3) lies above the second central axis (M2); and / or that the offset (V) between the second central axis (M2) and the third central axis (M3) corresponds at most to half the diameter of the third pipe section (10); and / or that the offset (V) between the second central axis (M2) and the third central axis (M3) is greater than 5 millimeters; and / or that the diameter of the third pipe section (10) is smaller than the diameter of the first and / or the second pipe section (6).

6. Deflection pipe section (1) according to claim 4 or 5, characterized in that the guide structure (7), seen from the second pipe section (6), extends into the third pipe section (10), such that the guide structure (7) provides a transition between the third pipe section (10) and the second pipe section (6), wherein the second pipe section (6) and the third pipe section (10) are preferably arranged relative to one another such that the guide structure (7) has a gradient when seen in the installed position and / or in the flow direction of the multi-phase flow medium.

7. Deflection pipe section (1) according to one of claims 4 to 6, characterized in that the inner wall (11) of the second pipe section (6) has a base line (12) and in that the inner wall (13) of the third pipe section (10) has a base line (14), wherein the base line (14) of the third pipe section (10) is at a distance (A) transverse to the base lines (12, 14) from the base line (12) of the second pipe section (6), wherein the distance (A) is preferably between 1 / 10 and 6 / 10, in particular between 2 / 10 and 5 / 10, of the diameter of the second pipe section (6); and / or wherein the distance (A) is preferably greater than 5 millimeters or greater than 10 millimeters.

8. Deflection pipe section (1) according to one of the preceding claims, characterized in that the guide structure (7) has a central guide section (15) and two lateral guide sections (16), wherein one of the lateral guide sections (16) is located laterally to the central guide section (15); and in that the central guide section (15) is arranged offset from the lateral guide sections (16) with respect to the interior space (17) of the deflection section (3).

9. A deflection pipe section (1) for discharging a multi-phase flow medium, in particular consisting of water, solids, and air, comprising a first pipe section (2) extending along a first central axis (M1), a deflection section (3) adjoining this first pipe section (2) and having a deflection outer side (4) and a deflection inner side (5), which deflection section (3) deflects the flow medium relative to the first pipe section (3), a second pipe section (6) adjoining the deflection section (3) and extending along a second central axis (M2), a guide structure (7) arranged inside the deflection section (3) on the deflection outer side (5) for guiding the flow medium in the deflection section (3), characterized in that the guide structure (7) has a central guide section (15) and two lateral guide sections (16),wherein each of the lateral guide sections (16) is located laterally to the central guide section (15); and that the central guide section (15) is located to the lateral guide sections, (16) is arranged offset with respect to the interior (17) of the deflection section (3).

10. Deflection pipe section (1) according to one of the preceding claims 8 to 9, characterized in that partial regions of the central guide section (15) or the central guide section (15) are offset into the interior space (17) with respect to partial regions of the lateral guide sections (16) or the lateral guide sections (16); or that partial regions of the lateral guide sections (16) or the lateral guide sections (16) are offset into the interior space (17) with respect to partial regions of the central guide section (15) or the central guide section (15).

11. Deflection pipe section (1) according to one of the preceding claims 8 to 10, characterized in that, seen in cross section transverse to the first or second central axis (M1, M2), the width (B15) of the central guide section (15) decreases with increasing distance away from the first pipe section (2) or towards the second pipe section (6) and that the width (B16) of the lateral guide sections (16) increases with increasing distance away from the first pipe section (2) or towards the second pipe section (6).

12. Deflection pipe section (1) according to one of the preceding claims 8 to 11, characterized in that the distance between the central guide section (15) and the lateral guide sections (16) decreases with increasing distance from the first pipe section (2) at right angles to the second central axis (M2) and in a reference plane spanned by the first central axis (M1) and the second central axis (M2).

13. Deflection pipe section (1) according to claim 12, characterized in that the distance in the transition region between the deflection section (3) and the second pipe section (6) tends towards zero, the minimum distance being reached at the entrance to the second pipe section (6).

14. Deflection pipe section (1) according to one of the preceding claims 8 to 13, characterized in that the central guide section (15) has a guide surface (18) and that a wall surface (19) is arranged laterally to the guide surface (15), which wall surface (19) connects the guide surface (18) to the lateral guide sections (16).

15. Deflection pipe section (1) according to claim 14, characterized in that the guide surface (18) is designed in cross-section transverse to the first or second central axis (M1, M2) such that a recess (20) is provided which extends outwards with respect to the side edges (21) which laterally delimit the guide surface (18) with respect to the interior space (17) of the deflection section (3).

16. Deflection pipe section (1) according to claim 15, characterized in that the depth of the recess (20) with respect to the side edges (21) transversely to the first or second central axis (M1, M2) as seen from the first pipe section (2) to the second pipe section (6), viewed across the deflection section, varies, in particular that the depth increases in a first partial region and decreases again in a second partial region; or that the depth decreases across the deflection section (3) with increasing distance from the first pipe section (2).

17. Deflection pipe section (1) according to one of the preceding claims, characterized in that the flow medium is deflected by the angle (a, alpha) between the first central axis (M1) and the second central axis (M2), wherein the guide structure (7) is arranged and designed such that at the point of impact of the flow medium on the guide structure (7), the guide structure (7) provides a deflection by a first angular part (a1, alpha1) of the said angle (a, alpha), and that at the transition from the guide structure (7) to the second pipe section (6), the guide structure (7) provides a deflection by a second angular part (a2, alpha2) of the said angle (a, alpha).

18. Deflection pipe section (1) according to one of the preceding claims, characterized in that the guide structure (7) runs along a base line (22) in the region of the transition to the second pipe section (6), wherein the base line (22) is a straight line (K), and wherein the straight line (K) runs at an angle (ß, beta) of 160° to 175° to the base line (12) of the second pipe section (6) 19. Deflection pipe section (1) according to one of the preceding claims, characterized in that the base line (22) of the guide structure (22) has a curved section (F), wherein the curved section (F) marks the beginning of the guide structure (7).

20. Deflection pipe section (1) according to one of the preceding claims 18 and 19, characterized in that the curved section (F) merges into the section of the base line (22) which is a straight line (K).

21. Sanitary arrangement comprising a diverting pipe piece according to one of the preceding claims, a sanitary article, such as a toilet bowl or a urinal, with a connection area for connecting a drain pipe socket, wherein the drain pipe socket opens into the first pipe section (2) of the diverting pipe piece (1) and wherein a drain pipe is connected to the second pipe section (6).

22. Use of a diverting pipe piece (1) according to one of the preceding claims 1 to 20 in a drain line of a sanitary article, such as a toilet bowl or a urinal.

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