Sanitary insert part

Abstract

A jet regulator (1) with a dispersing stage (6) comprising an arrangement of dispersing nozzles (9), wherein a mixing stage (7) is arranged downstream of the dispersing stage (6) in a main flow direction (4), which is at least partially bounded by a housing wall (22) transverse to the main flow direction (4), wherein the mixing stage (7) comprises an insert (10) with flow obstructions (11). The insert (10) has two or more arrangements (12, 13) of flow obstructions (11) spaced apart from each other in the main flow direction (4), which serve to finely atomize and mix the jets exiting the dispersing nozzles (9).

Description

[0001] The invention relates to a sanitary insert with a separation stage, in particular comprising an arrangement of separation nozzles, wherein a mixing stage is arranged downstream of the separation stage in the main flow direction, which may be limited by a housing wall transverse to the main flow direction.

[0002] Such sanitary fittings are known in practice, for example, as steel regulators.

[0003] Typically, such sanitary inserts are used in outlet fittings where they shape and improve the spray pattern of an emerging water jet. These sanitary inserts are usually inserted into a threaded nozzle that can be connected to an outlet fitting. In practice, these sanitary inserts often consist of a pre-filter screen, a reducing stage, a separating stage, a mixing stage, and an outlet stage, arranged in that order along the main flow direction and through which fluid flows. Sanitary inserts are also known in which one or more of these stages are missing.

[0004] The reduction stage can be designed, for example, to reduce the flow rate. For instance, the reduction stage can be designed as a throttle, reducing the flow rate by a factor dependent on the pressure difference within a given operating range. Alternatively, the reduction stage can be designed as a flow regulator, reducing the flow rate to a value that is practically or precisely independent of the pressure within a given operating range. Flow regulators often feature an elastic control element that deforms under operating pressure and changes the area of ​​a flow orifice depending on the pressure.

[0005] One possible function that can be achieved with a separation stage is to fluidically decouple flow conditions upstream of the separation stage from those downstream. This is often accomplished by an arrangement of separation nozzles, which can be designed, for example, as a separation plate, a diffuser, or in some other way. Another characteristic of a separation stage can be, for instance, the splitting of an incoming water flow into a multitude of individual jets.

[0006] A mixing stage can follow the dispersing stage, typically incorporating flow obstructions to ensure thorough mixing and turbulence of the individual jets generated by the dispersing stage. This mixing stage may also include an air intake, created by a negative pressure behind or at the dispersing stage, which can be used to generate an aerated jet.

[0007] In practice, it is known to insert flow obstructions in the form of grid inserts into the mixing stage, which can be made of different materials.

[0008] A final outlet stage, which can be designed as a discharge structure, for example, can perform rectifying functions to generate a unidirectional outflow. Another function of an outlet stage can be, for example, to form a fluidically permeable termination of the mixing stage.

[0009] The invention is therefore based on the objective of improving the performance and manufacturing properties of a sanitary insert of the type mentioned above.

[0010] To solve the aforementioned problem, the features of claim 1 are provided according to the invention. In particular, to solve the aforementioned problem in a sanitary insert, it is proposed that the mixing stage has an insert with flow obstructions, wherein the insert has at least two arrangements of flow obstructions arranged one above the other, and in particular spaced apart from each other, in the main flow direction. It is advantageous that the desired mixing of the jet and the associated improvement of the jet pattern are achieved with only one insert in the mixing stage, which, for example, simplifies the assembly of such a sanitary insert and can lead to a reduction in manufacturing costs.

[0011] Alternatively or additionally, to solve the aforementioned problem, the features of the second, subordinate claim, which relates to a sanitary insert, can be provided according to the invention. In particular, to solve the aforementioned problem in a sanitary insert, it is thus proposed that the mixing stage has at least two arrangements of flow obstructions arranged one above the other in the main flow direction, and that the flow obstructions of the at least two arrangements overlap in the main flow direction.

[0012] In general, it can be said that the flow obstacles can, for example, be rod-shaped.

[0013] Especially when the flow obstructions overlap, a particularly advantageous mixing of the jets in the mixing stage can be ensured.

[0014] In a particularly advantageous embodiment of the invention, the at least two arrangements of flow obstructions can be preferably rigidly connected to one another or designed as a single piece. The single-piece design of the insert can reduce the assembly time of the sanitary insert and the associated costs, and / or ensure a defined relative alignment of the arrangements.

[0015] In an advantageous embodiment, the arrangements can be configured to cover a flow cross-section that is at least 90%, and in particular 100%, identical to the flow cross-section at the outlet stage. It can also be configured that the arrangements cover a flow cross-section of more than 90%, and in particular more than 100%, of the flow cross-section at an outlet stage. The flow cross-section can, for example, be determined by the circumferential contour of the aerator. The flow cross-section can vary along the main flow direction. For example, the flow cross-section at the outlet stage can be smaller than at the mixing stage and thus at the position of the flow obstructions. Therefore, the flow obstructions can cover a larger flow cross-section than the flow cross-section of the outlet stage. Furthermore, jets may encounter flow obstructions multiple times before entering the downstream outlet stage.This allows for a particularly fine atomization of the water jets and a particularly advantageous mixing.

[0016] In a particularly advantageous embodiment, the flow obstructions within each of the at least two arrangements can be at least partially parallel or free of intersection. This can offer significant advantages in the manufacturing of the flow obstruction, for example by injection molding, since a less complex tool is required and the flow obstruction can be easily demolded after casting.

[0017] In one embodiment of the invention, it can be provided that the flow obstructions in a first of the at least two arrangements are aligned in the same way, in particular parallel, to the flow obstructions in a second of the at least two arrangements, which can lead to a reduction in manufacturing costs, since in this case an identical tool, for example an injection mold, could be used to manufacture both arrangements.

[0018] In one embodiment of the invention, the flow obstructions in a first of the at least two arrangements may be oriented in a crossed manner, in particular perpendicularly, to the flow obstructions in a second of the at least two arrangements. This can lead to more homogeneous mixing and to achieving a more symmetrical jet pattern.

[0019] In a particularly advantageous embodiment of the invention, it is proposed that at least one of the arrangements of flow obstructions has at least two regions, wherein the orientation of the flow obstructions differs from one another in the at least two regions. In other words, at least one of the arrangements described here can contain two or more regions with flow obstructions oriented differently across the regions, the different orientation of the flow obstructions being determined by a direction in which the flow obstructions project from the support. This allows for a particularly advantageous coverage of the flow cross-section with flow obstructions, since a larger number of flow obstructions can be accommodated in a single flow cross-section.

[0020] In particular, in combination with another arrangement spaced apart from the arrangement with flow obstructions in various areas, a particularly advantageous atomization and mixing of the jets can be achieved.

[0021] In a further embodiment, the flow obstructions in a second region of the at least two regions can be oriented transversely to the flow obstructions in the first region of the at least two regions. Flow obstructions arranged transversely to each other result in a particularly advantageous mixing of the jets.

[0022] In particular, it can be provided that the orientation of the flow obstructions between two of the arrangements includes an angle. This is especially advantageous when the arrangements are adjacent. In this way, advantageous coverage of the flow cross-section by flow obstructions can be achieved, especially if the angle between the arrangements is 90°. It can also be provided that the orientation of the flow obstructions between two areas includes an angle. Such an arrangement further contributes to a particularly high coverage of the flow cross-section with flow obstructions and thus also to advantageous mixing of the jets, especially if the angle between the areas is 90°.

[0023] In a particularly advantageous embodiment of the invention, the at least two arrangements can be formed on a common support. This ensures that the orientation of the flow obstructions relative to each other cannot change when inserted into the sanitary component. This prevents, for example during assembly, any subsequent alteration of the fluid paths within the mixing element.

[0024] In a particularly advantageous embodiment of the invention, the insert may be provided with one or more pressure equalization openings. The advantage here is that pressure differences which could impair the jet cross-section can be compensated for.

[0025] To solve the aforementioned problem, the invention alternatively or additionally proposes the features of the third dependent claim for a sanitary insert. In particular, to solve the aforementioned problem in a sanitary insert of the type described above, the invention proposes that at least some of the flow obstructions have a non-circular cross-section. It is particularly advantageous if the non-circular cross-section has a greater extent in the direction in which the sanitary insert can be inserted into a sanitary fitting than perpendicular to this direction, or if the cross-section is elliptical or oval. This also ensures an increased coverage of the flow cross-section, which can have a beneficial effect on the atomization of the jets and the mixing.

[0026] In an advantageous embodiment of the invention, at least one of the arrangements may have an outer ring. The outer ring may be circumferential. It may also be provided that two or more arrangements have a circumferential outer ring, and the outer rings may be connected to one another. The outer ring may serve to stabilize the arrangements of flow obstructions. Furthermore, it may be advantageous for the outer ring or outer rings to serve to support the flow element against the inner wall of the housing.

[0027] Alternatively or additionally, the invention proposes the features of the fourth independent claim to solve the aforementioned problem in a sanitary insert. In particular, to solve the aforementioned problem in a sanitary insert of the type described above, the invention proposes that at least two arrangements of flow obstructions, preferably on one insert (for example, the one mentioned), be movably arranged relative to the other. For example, the arrangement downstream of the first arrangement in the main flow direction can be attached to a common support by means of a hinge. This offers, among other advantages, that the flow obstructions of the second arrangement do not have to be parallel to those of the first arrangement, but can, for example, also be orthogonal, without having to accept disadvantages regarding demoldability, for example, from an injection mold.The orthogonal arrangement of a second arrangement of flow obstructions also offers the advantage that, with a reduced installation height, good mixing of the jet in the mixing stage can be achieved.

[0028] It is particularly advantageous if the insert features an alignment aid that ensures a defined orientation of the insert relative to the arrangement of the dispersing nozzles. This eliminates the need to check the arrangement of the flow obstructions after insertion. Such an alignment aid can be implemented, for example, using a Hirth coupling. Since the arrangement of the flow obstructions is crucial for the mixing of the jet and the subsequent jet pattern, this ensures consistent jet quality.

[0029] In an advantageous embodiment of the invention, an alignment aid, for example the one described above, for the insert can interact with a counter-alignment aid on the disassembly stage and / or on the housing wall. This further simplifies the assembly of the sanitary insert.

[0030] In a particularly advantageous embodiment of the invention, the flow obstructions of an inflow-side arrangement can be arranged in the operating position such that a jet from each dispersing nozzle strikes at least one flow obstruction of the inflow-side arrangement. Precise positioning of each jet exiting the dispersing nozzles onto a flow obstruction can ensure optimal atomization of the jets in the mixing stage.

[0031] In one embodiment of the invention, the housing wall may form a discharge structure at its downstream end, which delimits the mixing stage on the downstream side. Such a housing wall design offers advantages during assembly, as it reduces the overall number of parts required. Furthermore, such a housing wall may be suitable for cost-effective manufacturing, for example, by injection molding.

[0032] In an advantageous embodiment of the invention, the insert can be positioned on the housing wall, particularly on one of the outlet structures. This allows forces acting on the flow obstruction to be absorbed more effectively. Additionally, the need for further structures to support the flow obstruction can be avoided.

[0033] In an advantageous embodiment of the invention, the housing wall and the disassembly stage can be aligned with each other by a rotationally fixed connection. Such a connection can effectively prevent the disassembly stage from twisting relative to the housing.

[0034] To avoid unintentional twisting of the insert, for example during the assembly of the insert part, an embodiment of the invention may provide that a counter-alignment aid formed on the housing wall forms a catch funnel for or the alignment aid of the insert.

[0035] Furthermore, the disassembly stage may engage in a catch funnel, such as the one described previously, or in a counter-alignment aid, such as the counter-alignment aid described previously, which can further secure the positions of the disassembly stage and the insert against unintentional rotation. This could also facilitate the assembly of the insert.

[0036] In an advantageous embodiment of the invention, the disassembly stage can be fixed to the housing wall by a snap connection. This can ensure a secure and durable connection between the disassembly stage and the housing and can also enable simple and quick installation of the sanitary insert.

[0037] In general, it can be said that by using a mixing stage downstream of a dispersing stage in the main flow direction, with an insert, in particular an insert as described above or claimed below, wherein the insert has at least two arrangements of superimposed flow obstructions, it is possible, on the one hand, to ensure that the mixing stage provides advantageous mixing of the jets exiting the dispersing nozzles, for example, by arranging the insert and the flow obstructions located thereon such that the jets from the dispersing nozzles directly encounter a flow obstruction, and on the other hand, to enable simple installation of the sanitary insert. In summary, possible advantages of the invention include, among others, improved jet shaping, jet comfort, and the jet pattern. This is particularly addressed by the present invention for round jet shapes.Furthermore, there is an advantage in improving, and in particular simplifying, the manufacturing and assembly of such sanitary components, as well as reducing the costs of manufacturing and assembly.

[0038] This is made possible by the following inventions: 1.Improved mixing and atomization of the jets exiting the dispersing nozzles: In conventional sanitary fittings, a one-piece grid or sieve is frequently used as a flow obstruction in the mixing stage. In the present invention, all embodiments have in common that at least two superimposed arrangements of flow obstructions are implemented. This can have an advantageous effect on the jet pattern. Furthermore, when assembling a sanitary fitting as described above and claimed below, the need for subsequent checks of the alignment of the fitting and the flow obstructions arranged thereon, particularly with regard to their positioning relative to the dispersing nozzles, can be avoided, which can have a beneficial effect on assembly costs.This is particularly the case when the insert is equipped with an alignment aid, and the separating stage and / or the housing with its discharge stage is implemented with a counter-alignment aid corresponding to the alignment aid. This prevents unfavorable positioning of the insert and its associated flow obstructions in relation to the separating nozzles and / or the discharge structure. Such unfavorable positioning could otherwise affect the spray quality. 2. Simplified manufacturing and demolding of the insert with flow obstructions: The production of the individual parts of a sanitary insert as described above, or of other sanitary inserts known from practice, is usually carried out using cost-effective methods, especially injection molding. When injection molding workpieces, the ease of demolding the workpieces from the injection molds plays a particularly important role.The production of parts with flow restrictions, such as the insert described above and claimed below, can be complicated, especially when multiple arrangements of flow restrictions are to be implemented one above the other. Parallel arrangement of the flow restrictions can prevent problems during demolding from an injection mold. In an insert with flow restrictions arranged orthogonally to each other, demoldability can be achieved by the mobility of one of the arrangements, particularly the lower one. This allows the mold for the second arrangement to be positioned far enough away from the mold for the first arrangement that the molds can be easily detached from the insert. The desired spacing of the arrangements for the mixing stage can be achieved during assembly by moving the second, movable arrangement.This allows for the manufacture of an insert with mutually orthogonal arrangements of flow obstructions that are advantageous for mixing. 3. Simplified assembly: By using a single insert with at least two arrangements of flow obstructions, a mixing advantageous for the spray pattern can be achieved. A comparable mixing is only achieved with conventional sanitary insert elements by using several sieves or grids as flow obstructions. Compared to the invention presented here, this results in increased assembly effort and associated costs.Furthermore, it can be assumed that the use of inserts with flow restrictions, such as those described above and claimed below, results in sanitary inserts with a lower overall height compared to sanitary inserts with multiple, structurally separate flow restrictions. Such lower heights would be advantageous, for example, when used as aerators in very shallow outlet fittings.

[0039] The invention will now be described in more detail with reference to an exemplary embodiment, but is not limited to this embodiment. Further exemplary embodiments result from combining the features of one or more claims with each other and / or with one or more features of the exemplary embodiment.

[0040] It shows Fig. 1 a first variant of the sanitary insertion unit in a three-dimensional view, Fig. 2 the sanitary insertion unit made of Fig. 1in a three-dimensional view with a partial section, Fig. 3 an axial section through a variant of the sanitary insertion unit of an embodiment according to the invention, Fig. 4 an axial section through the sanitary insertion unit made of Fig. 3 Fig. 5 illustrates a collecting funnel; Fig. 6 shows an exploded view of a variant of the sanitary insertion unit of an embodiment according to the invention; Fig. 7 shows a three-dimensional view of an isolated insert with flow obstructions and a movable arrangement; Fig. 8 shows the isolated lowest arrangement of flow obstructions made of... Fig. 7 , Fig. 9 an axial section through an insert with flow obstructions and rings and Fig. 10 an axial section through an insert with flow obstructions and rings, connected via the rings.

[0041] The figures are described collectively below, where appropriate. Structurally and / or functionally similar or identical components and functional units are designated with matching reference numerals and are not described separately again. The descriptions therefore apply to all figures unless otherwise stated.

[0042] Figure 1 Figure 1 shows a first variant of a sanitary insert, designated as 1 in its entirety. The insert 1 is enclosed by a housing 2 and equipped with a front screen 3, which is enclosed by a ring 21. In the main flow direction 4, the insert 1 has, in a manner known per se, a reduction stage 5, as well as downstream a separation stage 6, a mixing stage 7, and a discharge stage 8. The housing 2 of the sanitary insert 1 can, for example, be made of an injection-moldable plastic.

[0043] In Figure 2 is the sanitary insert made of Figure 1 to be seen. Downstream in the main flow direction 4 from the separation stage 6 with the separation nozzles 9, which is inserted into a housing 2, is the mixing stage 7 with the insert 10 contained therein and attached arrangements 12, 13, 14 of flow obstructions 11.

[0044] In the main flow direction 4, downstream of the mixing stage 7, is the outlet stage 8, wherein in the embodiment shown here the outlet structure 16 is formed as part of the housing 2 and the mixing stage is fluidically permeable at the bottom.

[0045] A water jet entering the sanitary insert 1 in the main flow direction 4 is cleaned of coarse particles by the pre-screen 3 and flows into reduction stage 5 where, for example, the inlet pressure or flow rate is reduced.

[0046] The water then flows into the separating stage 6 and the separating nozzles 9 located therein, which break the jet into individual jets.

[0047] The dismantling nozzles 9 are designed to be straight.

[0048] The emerging individual jets thus enter the mixing stage 7 where they encounter flow obstacles 11, which are arranged on an insert 10.

[0049] In this embodiment, the reduction stage 5 and the disassembly stage 6 are connected to the housing 2 in a rotationally secure manner by a snap connection 20.

[0050] The exemplary embodiment shows an insert 10 comprising three arrangements 12, 13, 14 of flow obstructions. Upon impact with the flow obstructions 11 in the mixing stage 7, the individual jets are finely atomized, resulting in thorough mixing of the water. Aeration can also occur here.

[0051] Downstream of the mixing stage 7 is the outlet stage 8, which can function as a flow straightener. In the embodiment shown here, the outlet stage 8 is implemented by an outlet structure 16, which is part of the housing 2.

[0052] In further embodiments, the discharge stage 8 can be realized by a separate discharge structure 16, which is connected to the housing 2, for example by inserting it into the housing 2.

[0053] It can also be seen that, as proposed according to the invention, each jet exiting a dissecting nozzle 9 encounters a flow obstruction 11 of the insert 10. This is also evident from the Figure 5 This is evident. Deep or direct penetration of the emerging individual jets into mixing stage 7 can thus be prevented.

[0054] The insert 10 located in the mixing stage has a support 15 in the center, on which the flow obstructions 11 are arranged. In this embodiment, the flow obstructions 11 are attached to the support 15 in three arrangements 12, 13, and 14. These arrangements are mounted one above the other on the support 15. Arrangements 12 and 14 cover a congruent flow cross-section 25, while arrangement 13 is offset from the aforementioned. The spacing between the individual flow obstructions 11 is at least large enough to prevent any points of contact between them.

[0055] In the exemplary embodiments shown in the Figures 2 , 3 and 5The flow obstructions are arranged parallel and without crossings. The identical positioning of arrangements 12 and 13, as well as the offset positioning of arrangement 14, ensures particularly effective mixing of the incoming water. This enables exceptionally fine atomization of the jets exiting the dispersing nozzles 9.

[0056] Figure 6 Figure 1 shows an embodiment of an application with two arrangements 12, 23 of flow obstructions 11. Other embodiments are also realized with a number greater than three arrangements of flow obstructions 11.

[0057] The flow cross-section 25 of the main flow direction 4 in the mixing stage 7 is limited by the housing wall 22 as shown in the embodiments and in the Figures 2 , 3 and 4 can be seen.

[0058] Furthermore, in Figure 2It can be seen that the insert 10 is equipped with an alignment aid 17. The alignment aid 17 rests against the housing wall 22 and an integrated counter-alignment aid 19.

[0059] The counter-alignment aid 19 of the housing wall 22 can be formed as part of a trap funnel 18.

[0060] In further embodiments, a counter-alignment aid 19 can be attached to the disassembly stage 6 additionally or alternatively.

[0061] Below insert 10 is the outlet stage 8 with the outlet structure 16.

[0062] The Figure 3 The axial cross-section of a variant of the sanitary insert 1 shows that within the section of housing 2 which forms the mixing stage 7, a collecting funnel 18 is formed on the housing wall 22.

[0063] In the main flow direction 4 above the disassembly stage 6 is the snap connection 20. This snap connection 20 securely connects the disassembly stage 6 to the housing 2 and the discharge stage contained therein.

[0064] A further counter-alignment aid 19 is implemented here as part of a guide aid 26, which engages the insert 10 from above and can ensure that the position of the insert 10 is maintained in the assembled state of the sanitary insert. This is also in Figure 3 to recognize.

[0065] In this embodiment, the guide aid 26 engages the catch funnel 18 from above and thus contributes to a proper positioning of the dismantling stage 6 to the discharge stage 8.

[0066] In this embodiment, the guide aid 26 is equipped with ventilation openings 27, which can lead to additional ventilation of the fluid in the mixing stage.

[0067] This prevents a twisting of the insert 10 and thus of the flow obstructions 11 relative to the separation nozzles 9 of the separation stage 6, as well as of the insert 10 and the flow obstructions 11 located thereon relative to the outlet structure 16, which would be detrimental to the mixing of the incoming water in the mixing stage 7 or to the jet shaping on the outlet side.

[0068] The 18-piece funnel is particularly well suited for use in Figure 4 This is evident from the fact that the depiction of the insertion has been omitted here. This does not represent an embodiment, but merely serves to better illustrate the catch funnel 18 and the counter-alignment aids 19. It can also be seen here that at the downward end of the catch funnel 18 in the main flow direction 4, a further counter-alignment aid 19 is formed in addition to the counter-alignment aid of the guide aid 26.

[0069] The use of counter-alignment aids 19 on the guide aid 26 of the disassembly stage and the catch funnel 18 of the housing 2 is particularly advantageous in order to protect the insert 10 and the flow obstructions 11 located thereon against twisting relative to the disassembly stage 6 and the discharge stage 8 during assembly in the assembled state.

[0070] In the exploded view in Figure 5 A guide aid 26 attached to the disassembly stage 6 can also be seen.

[0071] In the Figure 2 In the illustrated embodiment, the insert 10 is spaced apart from the discharge structure by the counter-alignment aid 19, which forms part of the catch funnel 18 and the housing wall 22. In further embodiments, the support 15 of the insert 10 also rests on the discharge structure 16.

[0072] In Figure 6Another embodiment of an insert 10 is shown. Here, two arrangements 12 and 23 of flow obstructions 11 are located on a support 15. The arrangements 12 and 23 have flow obstructions 11 that are orthogonal to each other. This also results in advantageous, fine atomization of the jets, with a reduced overall height compared to the previous embodiments of the insert 10.

[0073] This can be advantageous for a height-reduced design of a sanitary insert 1, while simultaneously retaining the advantages described above with regard to the mixing of the fluid in the mixing stage 7.

[0074] To improve the demolding of the insert from a tool, for example an injection mold, the movable second arrangement 23 is connected to the carrier 15 at a hinge joint 24. When inserted into the housing 2 of the sanitary insert 1, the movable second arrangement 23 is moved upwards in a folding motion and, in the assembled state, has a similar distance to the first arrangement 12 as the arrangements in the previous embodiments.

[0075] In the exemplary embodiment, the flow obstructions 11 are implemented with a round cross-section 29. In other embodiments, non-round shapes are also implemented. In particular, flow obstructions 11 with an oval or elliptical cross-section.

[0076] In the Figure 7Figure 10 shows an insert with three arrangements 12, 13, and 14 of flow obstructions. The arrangements 12, 13, and 14 are mounted on a support 15. The arrangement 14 located furthest towards the outlet stage 8 in the main flow direction 4 has a first section 30 and a second section 31 with flow obstructions 11 oriented differently. The flow obstructions 11 in the two sections 30 and 31 form an angle of 90° to each other. This improves mixing, particularly in areas near the housing wall, as a larger area of ​​the flow cross-section 25 can be covered by flow obstructions 11.

[0077] Figure 8 Figure 1 shows an isolated view of the arrangement 14, which is located closest to the outlet stage 8 in the main flow direction 4. The embodiment shows a total of four areas 30 and 31 in which the orientation of the flow obstructions differs relative to each other.

[0078] The flow obstructions 11 of the arrangement 14 shown in the exemplary embodiment are, as in Figure 7 The flow obstructions 11 of the next arrangement 13 are shown to be connected to each other. The arrangement 14 can also be combined with others.

[0079] The flow obstructions 11 in the exemplary embodiment are realized with a non-circular cross-section 29. In further exemplary embodiments, flow obstructions 11 with a circular cross-section 29 can also be realized.

[0080] In further embodiments, it is realized that an arrangement 14 other than the third, in particular the first arrangement 12, contains areas 30 and 31 with different orientations of flow obstructions 11.

[0081] The exemplary embodiment in Figure 7The design is implemented with three arrangements 12, 13, and 14 of flow obstructions. However, embodiments with fewer than three arrangements are also possible. Furthermore, embodiments with more than three arrangements can also be implemented. Other embodiments can also incorporate angles other than 90° between the flow obstructions 11 in regions 30 and 31.

[0082] Figure 9Figure 10 shows an insert 10 with two arrangements 12 and 13 of flow obstructions 11. In the exemplary embodiment, the arrangements 12 and 13 are connected by a support 15. Each of the two arrangements 12 and 13 is enclosed by a ring 32. Other exemplary embodiments are implemented with only one arrangement 12 of flow obstructions 11. In other examples, the ring(s) 32 may be interrupted. It is also possible for the rings to be connected to each other. In the case of connected rings, a support 15 can be omitted. In this exemplary embodiment, the insert 10 can be supported on the housing wall 22 by one of the rings 32. It is also possible for the ring 32 to rest on the outlet structure 16.

[0083] Figure 10Figure 1 shows an embodiment of an insert 10 with two arrangements 12 and 13 of flow obstructions 11. The flow obstructions 11 of arrangements 12 and 13 are each connected via a ring 32. The two rings 32 are connected to each other via a connection 33. In the embodiment shown, a support 15 to which the flow obstructions are attached can be omitted. In other embodiments, a support 15 may be included.

[0084] The representations according to the Figures 1 to 10 The previously described embodiments each represent a sanitary insert 1 with a round base shape. Other embodiments also incorporate different base shapes, in particular cuboid or rectangular base shapes. Reference symbol list

[0085] 1 Sanitary insert 2 Housing 3 Pre-screen 4 Main flow direction 5 Reducing stage 6 Separating stage 7 Mixing stage 8 Outlet stage 9 Separating nozzle 10 Insert 11 Flow obstruction 12 (First) arrangement 13 (Second) arrangement 14 (Third) arrangement 15 Support 16 Outlet structure 17 Alignment aid 18 Catching funnel 19 Counter-alignment aid 20 Snap connection 21 Ring 22 Housing wall 23 Movable (Second) arrangement 24 Hinged transition 25 Flow cross-section 26 Guide aid 27 Ventilation opening 28 Pressure equalization opening 29 Cross-section (of the flow obstruction) 30 (First) section 31 (Second) section 32 Ring 33 Connection

Claims

1. Sanitary insert (1) with a separation stage (6), in particular having an arrangement of separation nozzles (9), wherein a mixing stage (7) is arranged downstream of the separation stage (6) in a main flow direction (4), which is bounded by a housing wall (22) transverse to the main flow direction, characterized by the fact that the mixing stage (7) has an insert (10) with flow obstructions (11), wherein the insert (10) has at least two arrangements (12, 14) of flow obstructions (11) lying one above the other, in particular spaced apart from each other, in the main flow direction (4).

2. Sanitary insert (1), in particular according to claim 1, with a separation stage (6), in particular having an arrangement of separation nozzles (9), wherein a mixing stage (7) is arranged downstream of the separation stage (6) in a main flow direction (4), characterized by the fact thatthe mixing stage has at least two arrangements (12, 14) of flow obstructions (11) lying one above the other in the main flow direction (4), and that the flow obstructions (11) of the at least two arrangements (12, 14) overlap in the main flow direction (4).

3. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the at least two arrangements (12,14) of flow obstructions (11) are preferably firmly connected to each other or designed as a single unit.

4. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the arrangements (12,14) cover a flow cross-section (25) that is at least 90%, in particular 100%, identical and / or that the arrangements cover a flow cross-section (25) of more than 90%, in particular more than 100%, of a flow cross-section at an outlet stage (8).

5. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the flow obstructions (11) within each of the at least two arrangements (12, 14) run at least partially parallel or without crossing.

6. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the flow obstructions (11) in a first of the at least two arrangements (12, 14) are aligned in the same way, in particular parallel, to the flow obstructions (11) in a second of the at least two arrangements (12, 14).

7. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the flow obstructions (11) in a first of the at least two arrangements (12, 13, 14) are crossed, in particular perpendicular, to the flow obstructions (11) in a second of the at least two arrangements (12, 13, 14).

8. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact thatthe flow obstructions (11) are arranged in at least one arrangement (12, 13, 14), preferably in the at least two arrangements (12, 13, 14), wherein at least one of the at least one arrangement (12, 13, 14) has at least two areas (30, 31), wherein the orientation of the flow obstructions (11) differs from each other in the at least two areas (30, 31).

9. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the flow obstructions (11) in a second area (31) of the at least two areas (30, 31) are oriented transversely, in particular orthogonally, to the flow obstructions (11) in a first area (30) of the at least areas (30, 31).

10. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact thatan orientation, in particular the orientation, of the flow obstructions (11) between two, in particular adjacent, the at least two arrangements (12, 13, 14) includes an angle, in particular an angle of 90° and / or that an orientation, in particular the orientation, of the flow obstructions (11) between two, in particular adjacent, areas (30, 31) of the at least two arrangements (12, 13, 14) includes an angle, in particular an angle of 90°.

11. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that that at least two arrangements (12, 13, 14) are formed on a common support (15) and / or that the insert (10) has a pressure equalization opening (28).

12. Sanitary insert (1), according to the preamble of claim 1 or 2 or according to any of the preceding claims, characterized by the fact thatat least some of the flow obstructions (11) have a non-circular cross-section, in particular wherein the non-circular cross-section has a greater extent in a direction in which the sanitary insert part (1) can be inserted into a sanitary fitting than transversely to this direction and / or wherein the cross-section is elliptical or oval.

13. Sanitary insert (1), according to any one of the preceding claims, characterized by the fact that at least one arrangement (12) of flow elements (10) has a preferably circumferential outer ring (32), in particular wherein two outer rings of adjacent arrangements are connected to each other.

14. Sanitary insert (1), according to the preamble of claim 1 or 2 or according to any of the preceding claims, characterized by the fact that at least two arrangements (12, 13, 14) are designed to be movable relative to each other, in particular by connection with a joint transition (24) between the second movable arrangement (23) and the support (15).

15. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the insert (10) has an alignment aid (17) which ensures a defined alignment of the insert with respect to the arrangement of the disassembly nozzles (9).

16. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that one or the alignment aid (17) of the insert interacts with a counter-alignment aid (19) on the disassembly stage (6) and / or on the housing wall (22) and / or that the flow obstructions (11) of an upstream arrangement (12) in the operating position are aligned such that a jet of each disassembly nozzle (9) hits at least one flow obstruction (11) of the upstream arrangement (12).

17. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact thatthe housing wall (22) forms a discharge structure (16) at its outflow-side end, which limits the mixing stage (7) on the outflow side and / or that the insert (10) rests on the housing wall (22), in particular on one or the discharge structure (16).

18. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the housing wall (22) and the disassembly stage (6) are aligned with each other by a rotationally fixed connection and / or that a counter-alignment aid (19) formed on the housing wall (22) forms a catch funnel (18) for one or the alignment aid (17) of the insert.

19. Sanitary insert (1) according to any one of the preceding claims, characterized by the fact that the disassembly stage (6) engages in the or a catch funnel (18) of the or a counter-alignment aid (19) and / or that the disassembly stage (6) is fixed to the housing wall (22) by a snap connection (20). .

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