Sanitary insert part, series and corresponding use

Abstract

In the sanitary insert (1), the invention proposes structuring a splitter stage (6) such that it can form, with a further part (12), a ventilation passage (9) leading into the interior (10) of a mixing stage (7), and / or arranging flow obstructions (32) in the mixing stage (7) on a support (33) such that the mixing stage (7) is divided into at least two sub-chambers (34, 35) or three or more sub-chambers (34, 35), with pressure equalization recesses (36) on the support (33) ensuring that a transverse flow transverse to the main flow direction (25) of the water flow enables equalization between the sub-chambers (34, 35). (Figure 1)

Description

[0001] The invention relates to a sanitary insert with a splitter stage which is held in a housing part forming a mixing stage.

[0002] At least one air inlet can optionally be formed in the housing part.

[0003] The invention further relates to a sanitary insert with a housing part forming a mixing stage, for example, one of the aforementioned mixing stages, wherein an air inlet on the housing part is fluidically connected to the mixing stage. The mixing stage can, for example, be fluidically arranged downstream of a separating stage.

[0004] The invention further relates to a sanitary insert part with a splitter stage, for example the splitter stage already mentioned, which is held in a housing part forming a mixing stage, for example one of the mixing stages already mentioned, wherein at least one air inlet is formed in the housing part.

[0005] The invention further relates to a sanitary insert with a functional stage, for example, a separating stage, which is arranged in a housing part forming a mixing stage, for example, one of the aforementioned mixing stages. The functional stage can optionally be suspended in the housing part.

[0006] The invention further relates to a sanitary insert with a splitter stage, for example, one of the previously mentioned splitter stages, and a mixing stage formed downstream of the splitter stage, for example, the previously mentioned mixing stage. The mixing stage has an arrangement of flow obstacles arranged transversely to a main flow direction, for example, the previously mentioned flow obstacles. The flow obstacles protrude from a support, and the mixing stage has at least two subchambers separated by the support. It may be advantageous for the sanitary insert to have a round basic shape.

[0007] The invention further relates to a sanitary insert with a mixing stage in which flow obstacles are arranged.

[0008] The invention further relates to a sanitary insert part, wherein a mixing stage, for example one of the mixing stages already mentioned, which can be fluidically downstream of a dividing stage, for example one of the dividing stages already mentioned, has at least one flow obstacle, for example one of the flow obstacles already mentioned, wherein the at least one flow obstacle is arranged, in particular formed, on a carrier.

[0009] The invention further relates to a sanitary insert part, wherein a mixing stage, which can be fluidically downstream of a splitter stage, for example one of the splitter stages already mentioned, has at least one flow obstacle and the flow obstacles are aligned parallel to one another.

[0010] The invention further relates to a sanitary insert, wherein a splitter stage, for example one of the splitter stages already mentioned, has an arrangement of rows of at least two splitter nozzles.

[0011] Such sanitary inserts are known, for example, as aerators.

[0012] Typical sanitary inserts include, for example, a pre-screen, a reducing stage, a separating stage, a mixing stage, and / or an outlet stage as functional stages, through which fluid flows in this order. Sanitary inserts are also known in which one or more of these stages are missing.

[0013] The reducing stage can be designed, for example, to reduce a flow rate. For example, the reducing stage can be designed as a throttle, which reduces the flow rate by a factor dependent on a pressure difference within a working range. Alternatively, the reducing stage can be designed, for example, as a flow regulator, which reduces the flow rate to a value that is practically or precisely independent of pressure within a working range. Flow regulators often have an elastic control element that can be deformed by an operating pressure and that changes the surface area of ​​a flow opening depending on the pressure.

[0014] One possible function that can be realized with a splitter stage is to fluidically decouple flow conditions upstream of the splitter stage from flow conditions downstream. This is often achieved by an arrangement of splitter nozzles, which can be designed, for example, as a splitter plate or a diffuser or in another way. Another characteristic of a splitter stage can be, for example, the splitting of an incoming water flow into a multitude of individual jets.

[0015] The splitter stage can be followed by a mixing stage, which typically contains flow obstructions to ensure thorough mixing and turbulence of the individual jets generated by the splitter stage. Air intake can also be implemented here, which can result from a negative pressure behind or at the splitter stage and can be used to generate an aerated jet.

[0016] In practice, it is known to insert flow obstacles in the form of grid inserts into the mixing stage, which can be made of different materials.

[0017] A final outlet stage, which can be designed as an outlet structure, for example, can perform rectifying functions to generate a unidirectional flow. Another function of an outlet stage can be seen, for example, in forming a fluidically permeable closure of the mixing stage.

[0018] The invention is based on the object of simplifying the production of a sanitary insert part and / or increasing the possible uses of a sanitary insert part.

[0019] To achieve the stated object, the invention proposes the features of claim 1. In particular, to achieve the stated object, in a jet regulator of the type described above, the invention proposes that the flow obstacles are forcibly aligned to positions of holes in the splitter stage for passing water, in particular of splitter nozzles, by connecting the support structure, in particular the carrier, to the splitter unit, in particular the splitter stage. The invention has recognized that a reproducible alignment of the holes from which the individual jets of the splitter unit emerge, relative to an orientation of the flow obstacles, is advantageous for consistent jet generation quality across many jet regulators. The forced alignment can eliminate the degree of freedom that normally arises when inserts are used as flow obstacles.Additional alignment aids, such as guide grooves, guide ribs, or other shapes on inserts, are unnecessary. This can also facilitate largely automated production.

[0020] It is particularly advantageous if the splitter unit is designed as a splitter plate. The resulting flat arrangement of holes makes it particularly easy to align it with the flow obstacles.

[0021] It is advantageous if the holes are arranged congruently with the shape of the flow obstructions. This allows the holes to be easily covered by subsequent flow obstructions.

[0022] The aforementioned holes can each be configured as an outlet for the splitter nozzles of the splitter unit. This allows the outflow directions of the individual jets to be easily specified, making alignment even easier.

[0023] The sanitary insert, in particular the aerator, can be attached to an outlet of a sanitary fitting, for example, with a mouthpiece. The mouthpiece can have a thread that can be screwed into a mating thread. Additionally or alternatively, it is also possible for the sanitary insert itself to have a thread and / or to be attached to the sanitary fitting with an additional connecting sleeve that has a thread. A mouthpiece is then not required.

[0024] In one embodiment, a flow obstruction can be forcibly aligned with each hole in the splitter unit so that the water passing through the hole impinges on the flow obstruction. This prevents the individual jets from penetrating deeply into the mixing chamber.

[0025] It is particularly advantageous if the flow barrier is located on the top level of a stacked flow barrier arrangement. This allows the flow barrier to be positioned particularly close behind the hole.

[0026] For example, the holes of the disperser unit, in particular the disperser nozzles, can be arranged in one or more rows, as described in this description. In this case, a flow obstacle can be positively aligned, particularly for each row of holes, in particular for each row of disperser nozzles, such that the water passing through the hole impinges on the flow obstacle. This also results in the aforementioned advantage of preventing the emerging individual jets from penetrating deeply into the mixing chamber.

[0027] In one embodiment, the mixing stage can be laterally enclosed by a housing part. This can be the case, for example, over the entire extension between the splitter stage and an outlet stage, in particular an outlet structure. Thus, for example, an interior of the mixing stage, i.e., in particular, a space accommodating the flow obstacles or a space system accommodating the flow obstacles, can be enclosed or delimited upstream by the splitter stage, downstream by the outlet stage, and laterally by the housing part. This enables a compact or at least enclosed insert.

[0028] For example, the housing section can support the disassembly stage. This allows for a particularly simple design with as few parts as possible.

[0029] The disassembly stage can, for example, be connected to the housing part in a captive manner, in particular by locking or snapping or in another form-fitting manner.

[0030] The housing part can have a preferably circumferential retaining projection on the outside, which can be gripped with a nozzle. Alternatively or additionally, the housing part can have a thread on the outside with which it can be screwed into a sanitary fitting. The housing part can be made of plastic, for example. The housing part can, for example, separate the mixing stage from an air intake chamber through which air can be supplied.

[0031] In one embodiment, the flow barriers can be aligned parallel to each other, at least within a single level. Thus, individual rows of holes can be easily covered by one flow barrier each.

[0032] In one embodiment, it can be provided that for each flow obstacle on an uppermost level, there is at least one hole in the splitter unit, through which water passing through preferably impinges on the flow obstacle centrally. Thus, non-functional flow obstacles can be dispensed with and / or existing flow obstacles can be efficiently utilized for jet splitting and mixing.

[0033] In one embodiment, the support structure can be formed integrally with the splitter unit. This allows the flow obstructions to be aligned with the holes in a single manufacturing step. Additional assembly steps are unnecessary.

[0034] In one embodiment, it can be provided that the support structure is connected via a connection which defines the forced alignment. The connection can in particular be detachable or non-detachable. This is advantageous in that the support structure with the flow obstacles can be combined with different splitter units and vice versa. It is further advantageous that the support structure with the flow obstacles can be manufactured separately from the splitter unit. This can simplify tool design for injection molding. With a detachable connection, the aforementioned combination can be subsequently modified so that changed requirements can be responded to and, at the same time, as little waste as possible is generated. With a non-detachable connection, it is advantageous that any undesired detachment or later replacement of components of the combination can be prevented.

[0035] The connection can have a symmetry-breaking interface that enforces a forced alignment. A positively predetermined forced alignment represents a simple means of realizing the advantages of the invention.

[0036] Preferably, the connection is non-detachable, for example, by means of a snap connection. This prevents accidental loosening of the connection before installation in a use position.

[0037] Alternatively or additionally, the features of the second independent claim can be provided according to the invention to achieve the stated object. In particular, the invention proposes that, in a sanitary insert according to one of the types described above, the support has at least one pressure equalization recess fluidically connecting the at least two subchambers. This is advantageous because pressure equalization can take place between the subchambers, so that any impairment of the jet cross-section by the support can be at least partially or completely compensated.

[0038] In particular, when the sanitary insert has a round basic shape, the use of pressure equalization recesses according to the invention can be used to produce a jet cross-section that is as round as possible.

[0039] It has been found that a break in rotational symmetry or in general a symmetry by forming a sheet-like support, for example, leads to the formation of a preferred direction in the flow cross-section, as a result of which the jet cross-section deviates undesirably from the cross-section of the mixing stage or the cross-sectional shape of the mixing stage.

[0040] In an advantageous embodiment, the pressure compensation recess can be designed as at least one pressure compensation opening. This improves the stability of the support against deformations and vibrations.

[0041] In one embodiment of the invention, the pressure equalization recess can define at least two fluid paths between the subchambers. This makes it possible to create circular flows that counteract the aforementioned formation of a preferred direction in the jet cross-section and thus help produce a more homogeneous jet cross-section. It is particularly advantageous if at least three or even more than three fluid paths are defined in this way. For example, this can be achieved by forming the pressure equalization recess as several pressure equalization openings that are not connected to one another.

[0042] Each of the pressure equalization openings can then, for example, define a separate fluid path for equalization between the subchambers. In one embodiment of the invention, it can be provided that the surface area of ​​the pressure equalization recess is at least 10%, at least 15%, or at least 20% of the surface area of ​​a longitudinal section of the mixing stage. It has been found that this can make a substantial contribution to mixing across the separation of the two subchambers. This effect is particularly favorable when at least 30% or even at least 40% of the surface area of ​​the longitudinal section is occupied. It is particularly advantageous when the pressure equalization recess takes up as large a proportion as possible, whereby the remaining stability of the support and the space required by the flow obstacles must also be taken into account.Particularly good results can be achieved in the range 50-60%, but pressure equalization recesses with at least 60% or even at least 70% surface area are also possible.

[0043] In one embodiment of the invention, it can be provided that the at least one pressure compensation recess enables transverse flow with respect to a main flow direction. The main flow direction can be determined, for example, by vectorially plotting a flow direction at each point of the interior or of the sanitary insert as a whole at a single point, whereby the main flow direction can be determined as the average across all these flow directions. The main flow direction is often the direction in which the sanitary insert can be inserted into a sanitary fitting.

[0044] The formation of a cross-flow has a balancing effect between the sub-chambers, which can result in a more uniform cross-sectional image of the escaping water jet.

[0045] In particular, this approach makes it possible to avoid geometrically induced deformations of the jet cross-section using simple means. In particular, a jet cross-section can be achieved that is adapted as closely as possible to the clear cross-section or cross-sectional shape of a mixing chamber, for example, the one mentioned above, or an outlet stage, in particular an outlet structure, for example, the one mentioned above.

[0046] To achieve the stated object, the invention alternatively or additionally proposes the combination of features of the third independent claim for a sanitary insert part. According to the invention, it is therefore particularly proposed for a sanitary insert part according to one of the types already described at the outset that in at least one longitudinal section running through a support for flow obstacles arranged in the mixing stage, in particular through the support already mentioned, the support covers less than 90% of the mixing stage. Thus, a substantial free space is formed for forming a pressure equalization recess, through which equalization or cross-flow between the subchambers formed by the support can be achieved. It is particularly advantageous if the support covers less than 70%, less than 60%, less than 50%, or even less of the mixing stage.The smaller the coverage, the better for the formation of a uniform and / or highly symmetrical beam cross-section. However, this effect is limited by the required stability of the support. A coverage between 40% and 50% can be considered optimal, but lower coverages are also achievable.

[0047] The area of ​​the mixing stage can be defined, for example, as the cross-sectional area of ​​the interior when the support and the flow obstacles have been removed.

[0048] Alternatively or additionally, the invention proposes the combination of features of the fourth independent claim to achieve the stated object in a sanitary insert part. In particular, the invention proposes that the at least one flow obstacle be supported offset on an outlet step. In particular, the at least one flow obstacle can be supported on the outlet step with a support offset laterally relative to a center of the support. The advantage here is that the stability of the flow obstacles can be improved against flow-induced deformation. Supports can thus be designed with smaller covers, so that compensation between the subchambers can be further improved.

[0049] Particularly favorable constellations arise from combining the described configurations with each other.

[0050] Alternatively or additionally, the invention proposes the combination of features of the fifth independent claim to achieve the stated object in a sanitary insert according to one of the types already described above. According to the invention, it is thus proposed in particular that the flow barriers form an arrangement that projects laterally beyond the support in two dimensions. Advantageously, a free space transverse to the orientation of the flow barriers can be used to form a pressure compensation recess by reducing the support compared to the arrangement of the flow barriers.

[0051] This is particularly advantageous if the beam has a non-circular cross-section. The overhang in two dimensions makes it easy to ensure that the beam also extends beyond the arrangement in the dimension in which it has its maximum cross-sectional extension.

[0052] Alternatively or additionally, to achieve the stated object, the invention proposes the features of the sixth independent claim in a sanitary insert part. In particular, the invention thus proposes, in a sanitary insert part according to one of the types described above, that a ventilation duct leading into a mixing stage is formed by at least two interconnectable parts. This simplifies the manufacture of such a ventilation duct, with which, for example, air can be guided to a mixing stage in order to generate an aerated jet. The invention has recognized here that ventilation ducts, which are generally closed transversely to their respective air flow direction, are subject to constraints on shaping during injection molding, since the shapes produced should be demoldable.A two-part design of the ventilation duct, in order to assemble this ventilation duct only in assembled form, facilitates tool design and thus the manufacturing process for the sanitary insert part.

[0053] A separation of the two parts can, for example, run along the length of the ventilation duct. This allows the use of structures open to the outside, which only form a closed ventilation duct when joined together.

[0054] Alternatively or additionally, the two sections can be separated perpendicularly to the ventilation duct. This allows separate, enclosed sections of the ventilation duct to be combined and, for example, run through different levels of the sanitary insert.

[0055] In one embodiment of the invention, the ventilation duct can be provided to open to the outside via an air inlet. This allows air to be easily guided from outside into the mixing stage. Preferably, the air inlet is formed in the housing part. This is advantageous because additional air routing outside the ventilation duct is unnecessary.

[0056] In one embodiment of the invention, it can be provided that an air flow direction, for example the air flow direction already mentioned or described below (in particular at every point in the ventilation passage), runs along a dividing line between the two parts. The dividing line can be aligned transversely, in particular perpendicularly, to a connection or insertion direction of the parts. Separating lines with other orientations can also be present when more complex surfaces are joined together.

[0057] In one embodiment of the invention, the ventilation duct can be defined by an annular space of the mixing stage. Thus, the ventilation duct opens directly into the interior of the mixing stage. The air can thus be supplied directly.

[0058] In one embodiment of the invention, it can be provided that at least one of the two parts forces at least one deflection, in particular of more than 60°, of the air flow. This enables a particularly compact routing of the ventilation duct and an opening into the mixing stage as close as possible to the outlets of the splitter nozzles. For example, the part can form a deflecting surface for this purpose.

[0059] In one embodiment of the invention, each of the two parts can be provided to delimit the ventilation passage in the circumferential direction of the sanitary insert. This allows for a localized air supply.

[0060] In one embodiment of the invention, one of the two parts, in particular a first part, for example the aforementioned first part, or a housing part, for example the aforementioned first part, can form a double wall. Thus, a closed section of the ventilation passage can be formed in the part.

[0061] Preferably, one part has a (circumferentially) closed section of a ventilation passage and / or another part has a deflection. Thus, a U-turn can be easily reproduced in a corresponding injection molding tool.

[0062] One of the two parts, in particular a first of the two parts, can, for example, be the aforementioned housing part or interact with it. One of the two parts, in particular a second of the two parts, can, for example, also form a stage, for example the splitter stage, the reducer stage, the mixing stage, or the outlet stage.

[0063] Ventilation ducts can also be formed from more than two parts, for example by repeating or combining the two variants just described.

[0064] Alternatively or additionally, the invention proposes the combination of features of the seventh independent claim to achieve the stated object in a sanitary insert part according to one of the types described above. Thus, in particular, to achieve the stated object in a sanitary insert part according to one of the initially described types, it is proposed that at least one air duct be formed on a side of the splitter stage facing the mixing stage, which air duct, in the use position, connects the at least one air inlet to the mixing stage. It has been found that the formation of an air duct on the splitter stage enables a space-saving arrangement because the aforementioned ventilation passage can then be formed at least partially in the material of the splitter stage.

[0065] The shape of the air duct at the splitter stage can be characterized, for example, by modifying a (preferably flat or regular) base body with a three-dimensional structure to form air ducts. For example, an air duct can be formed by a recess or by defining ribs.

[0066] Preferably, the air duct is open on one side.

[0067] By forming the air duct, in particular as part of the aforementioned ventilation passage, in the splitter stage, it is also possible to create a non-ventilated jet regulator in a simple manner by using a splitter stage in which the aforementioned air duct is missing.

[0068] This helps to reduce the variety of parts when manufacturing a range of sanitary inserts with different functions.

[0069] In one embodiment of the invention, it can be provided that the at least one air duct is delimited by a preferably axially aligned and / or circumferentially formed sealing surface. This allows for a seal between the splitter stage and the housing. In particular, it can be provided that the air duct or a system of air ducts is enclosed by the sealing surface. This enables a circumferential seal, in particular below or downstream of a sealing lip.

[0070] This design is particularly advantageous when an upstream seal is incomplete.

[0071] In one embodiment of the invention, a support surface facing the splitter stage can be formed on the housing part. This creates a self-sealing sealing surface that results in a more secure seal at higher operating pressures.

[0072] This can be achieved, for example, by the support surface sealingly interacting with a sealing surface formed on a side of the splitter stage facing a mixing stage, for example, the mixing stage already mentioned. This creates a particularly simple arrangement that also easily makes it possible to create a variant without a sealing surface for the splitter stage.

[0073] In one embodiment of the invention, it can be provided that a sealing surface, for example the one already mentioned, is arranged without an undercut relative to a channel base of the at least one air channel. This facilitates demolding of an injection-molded mold.

[0074] In one embodiment of the invention, it can be provided that the at least one air duct is aligned longitudinally, in particular parallel, to the at least one flow obstacle. This also allows for easy demolding.

[0075] In one embodiment of the invention, it can be provided that a projection is formed at a free end of the carrier relative to an end extension of the or an arrangement of flow obstacles.

[0076] In one embodiment of the invention, it can be provided that a maximum extension of the carrier is at least 0.1 mm, at least 0.3 mm, or at least 0.5 mm greater than a maximum extension of the or an arrangement of flow obstacles. This allows heating means to be arranged as close as possible to the workpiece on an injection mold if a gate is formed on the projection. Thus, hot runner injection molding is possible as an alternative to cold runner injection molding.

[0077] The extensions may, for example, be measured from a downstream side of the splitter stage.

[0078] In one embodiment of the invention, it can be provided that an end projection, for example the aforementioned projection, of the carrier over the flow obstacles in a region around its base maintains a distance, in particular of at least 0.1 mm, at least 0.3 mm, or at least 0.5 mm, from its adjacent flow obstacles. This avoids, particularly in hot runner injection molding, the negative effects of a heated injection channel on neighboring structures, in particular the flow obstacles.

[0079] In one embodiment of the invention, it can be provided that the respective structures can be formed without undercuts in both parts. This is advantageous because the aforementioned ventilation passage, which is composed of two (or more) parts, can be easily formed in the respective parts, thereby achieving easy demolding.

[0080] Alternatively or additionally, it can be provided that the respective structures in both parts are open on at least one side. In this case, as in the previous embodiment, it can be provided that the structures each partially or partially form the ventilation passage. The advantage of this embodiment is that complex structures that are difficult to demold can be avoided.

[0081] In one embodiment of the invention, one of the two parts (for example, the aforementioned first part) can be a housing part. This is advantageous because additional parts that are not necessary for forming a sanitary insert can be avoided.

[0082] Preferably, the housing part forms a mixing stage and / or a discharge stage. This achieves a functional dual function of one part, which can be beneficial for simplified manufacturing.

[0083] In one embodiment of the invention, one of the two parts (for example, the aforementioned second part) can be provided as a disassembly stage. This also makes it easy to achieve dual functional use of existing parts.

[0084] In one embodiment of the invention, it can be provided that the ventilation passage has a length that is greater than the wall thickness of one of the two parts, in particular the aforementioned housing part, or that is a multiple of the wall thickness of one of the two parts, for example, the aforementioned housing part. This is advantageous in that a ventilation passage can be created that goes beyond simply passing through a wall and allows the inflowing fluid to be guided over a larger section.

[0085] Preferably, the ventilation duct has at least one change in direction. This allows for the supply of air in confined spaces.

[0086] To achieve the stated object, the features of the eighth independent claim are provided alternatively or additionally according to the invention. In particular, in a sanitary insert according to one of the types described above, the invention proposes that an air flow between the air inlet and the mixing stage describes a U-turn. It is advantageous in this case that an air flow inlet into the mixing stage is positioned as far upstream as possible in the main flow direction. Thus, configurations can be achieved in which backsplash or backflow of liquid from the mixing stage through the aeration passage can be largely or completely prevented.

[0087] A U-turn can, for example, be characterized as a flow of a fluid in which a projection of an incoming flow direction onto an outgoing flow direction is antiparallel to the outgoing flow direction.

[0088] In one embodiment of the invention, it can be provided that a downstream boundary edge of a ventilation window opening into the mixing stage is designed to be no lower, preferably higher, in a main flow direction than an outlet of a separation stage. This is advantageous in that configurations can be achieved in which backflow through a ventilation passage or the aforementioned ventilation window is only possible when flows occur counter to the main flow direction. Since this occurs very rarely, the described combination of features is a good way to prevent or at least reduce unwanted escape of water from the ventilation passage. A further advantage can be that ventilation can be brought as close as possible to the outlet. This can improve air supply.

[0089] Alternatively or additionally, it can be provided that the ventilation duct or a ventilation duct leading into the mixing stage is arranged, at least in a partial area, upstream of the outlets of the splitter stage in a main flow direction. Thus, a ventilation window can be arranged at the level of or close to the outlets of the splitter stage (the splitter nozzles of the) splitter stage. This shortens the air path through the interior of the mixing stage to the outlets and thus leads to a more efficient coupling of the ventilation duct at least to the nearest splitter nozzle. This can reduce flow resistance for the air flow and increase air intake.

[0090] Alternatively or additionally, the invention proposes the combination of features of the ninth independent claim to achieve the stated object in a sanitary insert part. According to the invention, it is thus proposed in a sanitary insert part according to one of the types already described above that the splitter stage closes the at least one air inlet to the mixing stage. This is advantageous in a simple manner, at least when preparations in the housing part are designed such that a ventilation passage encompassing the air channel can be formed by forming an air channel on a downstream side of the splitter stage. Such ventilation passages can then be easily closed in individual variants by appropriately designing the splitter stage. In this way, both ventilated and non-ventilated jet regulators can be easily manufactured.

[0091] Alternatively or additionally, to achieve the stated object, the invention proposes the features of the tenth independent claim in a sanitary insert part. In particular, the invention thus proposes, in a sanitary insert part according to one of the types described above, that a gap between the functional stage, for example the disintegrating stage or the reducing stage, and the housing part is closed with a deformable sealing element. The advantage here is that a one-piece design of the disintegrating stage with the housing part is dispensable and that, nevertheless, no storage of sealing rings and the like is required. The described design has the advantage that different but similar functional stages can be easily combined with different housing parts to form ready-to-use articles.Another advantage may be, for example, that manufacturing tolerances do not lead to undesirable leaks or functional losses. In this context, the invention recognizes that high operating pressure can prevail particularly at the splitter stage and / or the reducer stage, since these functional stages create considerable flow resistance. A seal according to the invention is particularly advantageous for such functional stages.

[0092] In one embodiment of the invention, it can be provided that the sealing element is formed or molded onto a functional stage, for example the one already mentioned, in particular a dismantling stage, for example the one already mentioned, and / or a reducing stage, for example the one already mentioned. This enables simple assembly of the sanitary insert part, since the sealing element can be arranged captively on the respective functional stage. Preferably, the sealing element is formed integrally or molded onto the dismantling stage. Manufacture in a single production step is thus possible. This further reduces assembly costs compared to the case where the sealing element is formed separately from the dismantling stage.

[0093] Alternatively or additionally, the invention proposes the combination of features of the eleventh independent claim to achieve the stated object in a sanitary insert part. According to the invention, in a sanitary insert part according to one of the types already described above, it is particularly proposed that, for each row of splitter nozzles, a flow obstacle is connected to the splitter stage and downstream of the splitter stage, and that the at least one flow obstacle is arranged in a downstream extension of the row. Thus, it is easily achievable for several splitter nozzles to impinge on the same flow obstacle, preferably centrally. This can be advantageous for mixing in the mixing stage.

[0094] For example, the flow barrier can be integrally connected to the splitter stage. This allows for automatic alignment of the flow barrier to the position of the splitter nozzles without the need for subsequent assembly steps to achieve this alignment.

[0095] For example, the flow obstacle can be arranged directly downstream of the splitter stage. This allows the splitter nozzles to directly impact the uppermost level of flow obstacles, allowing for optimal atomization or splitting in the mixing stage. This ensures optimal distribution of the individual jets emerging from the splitter nozzle within the mixing chamber.

[0096] In one embodiment of the invention, the flow barrier can be integrally connected to the splitter stage and / or suspended from the splitter stage. This allows for particularly simple production without a subsequent assembly step.

[0097] In one embodiment of the invention, the splitter nozzles can each be designed in a straight line. This makes it easy to create a defined jet direction, with which the individual jets of the splitter nozzles can be directed toward the flow obstacles.

[0098] In one embodiment of the invention, it can be provided that the jet direction of each splitter nozzle is aligned with the associated flow obstacle. This is advantageous in that the individual jets from each splitter nozzle impinge as centrally as possible on at least one flow obstacle, particularly with a small total number of flow obstacles.

[0099] In one embodiment of the invention, the flow obstacles can be arranged in at least two levels. This is advantageous because good mixing can be achieved in a cascade-like manner.

[0100] Preferably, the flow barriers on different levels are arranged in intersecting orientations or are aligned parallel to each other. The crossed arrangement has the advantage of achieving particularly good mixing, while the parallel, especially offset, orientations are easy to demold.

[0101] In one embodiment of the invention, the disintegrating stage can be suspended from a housing part forming an outlet stage. This allows for a particularly simple attachment of the disintegrating stage to the housing part, which can easily withstand even high pressure loads.

[0102] In one embodiment of the invention, the flow obstacles can be connected to the splitter stage via an interface. This is advantageous because the flow obstacles can be easily combined with different splitter stages and vice versa. For example, this connection can be established via the interface via a support for the flow obstacles, in particular the support already mentioned.

[0103] In one embodiment of the invention, the interface may be provided as a snap-in connection. This enables a particularly simple connection of the flow obstacles, in particular a support, such as the aforementioned support, to the splitter stage.

[0104] In one embodiment of the invention, the interface can define an alignment of the flow obstacles relative to the splitter stage with respect to rotations around a longitudinal axis. This makes it easy to align the flow obstacles with a pattern or arrangement of splitter nozzles without requiring follow-up inspection or requiring increased assembly effort. It is thus easy to ensure that the splitter nozzles and the flow obstacles find each other automatically, or that the splitter nozzles and the flow obstacles are precisely aligned with each other.

[0105] In one embodiment of the invention, the housing part can be designed to be open on the downstream side. This allows for a low overall height.

[0106] In one embodiment of the invention, the housing part can be closed off on the downstream side by an outlet structure. The housing part can thus be designed as a basket. It is particularly advantageous if a space, such as the one already mentioned, is formed upstream of the outlet structure. This space can be easily filled by placing insert grids or flat inserts on the outlet structure.

[0107] Alternatively or additionally, the invention proposes the combination of features of the twelfth independent claim to achieve the stated object in a sanitary insert part. According to the invention, in a sanitary insert part according to one of the types already described at the outset, it is therefore particularly proposed that a ventilation duct, for example the one already mentioned, opens into an interior space of the mixing stage at an axially aligned ventilation window. This allows air to be supplied along an alignment of disperser nozzles. This allows the ventilation window to be placed even closer to a nearest disperser nozzle of the disperser stage than would be possible with a ventilation window in a side wall of the mixing stage. Thus, the negative pressure created at the disperser nozzle can be utilized even more effectively for air intake.

[0108] In one embodiment of the invention, the splitter stage can be designed as a splitter plate with an array of splitter nozzles. Thus, a typically flat underside of the splitter stage can be used to form the ventilation window and / or the air duct in the manner described. Since splitter plates are also used at low operating pressures, the advantages of the invention can be utilized particularly well here.

[0109] In one embodiment of the invention, the splitter stage may be provided with splitter nozzles with a round cross-section. It has been found that round splitter nozzles tend to generate particularly low noise during operation, especially when the flow obstacles are rigidly aligned with a position of the splitter nozzles.

[0110] Alternatively or additionally, to achieve the stated object in a series of sanitary inserts, the invention proposes the features of the independent claim directed to a series. Thus, to achieve the stated object in a series of the type described above, the invention proposes that at least two variants are available, each comprising a sanitary insert, for example a sanitary insert according to the invention, in particular as described above and / or claimed below, wherein both variants each comprise a corresponding housing part in which a splitter stage is held and in which an outwardly open air inlet is formed, wherein in a first variant the splitter stage forms at least one ventilation passage with the air inlet, in particular the ventilation passage already mentioned, and in a second variant the splitter stage closes the air inlet.The advantage here is that ventilated and non-ventilated variants of sanitary insert parts can be easily formed with a minimal number of parts, for example by means of appropriate sliders above the injection moulding tool when forming the dismantling stage.

[0111] It is particularly advantageous if the first variant and / or the second variant is in accordance with the invention, in particular as described and / or claimed herein.

[0112] In general, it can be said that by using a downstream side of a splitter stage to form a ventilation duct, for example the one already mentioned, of a sanitary insert part, in particular as described above or claimed below, wherein at least one particularly non-planar structure is formed in the splitter stage, which contributes to the formation of the ventilation duct, it is achievable on the one hand that a ventilation window, as the location at which the ventilation duct opens into an interior space of the mixing stage, can be placed as close as possible to the splitter nozzles of the splitter stage and that on the other hand a downstream boundary edge of the ventilation window can be arranged as close as possible to the splitter stage without losing an opening cross-section of the ventilation window in a main flow direction, for example the one already mentioned.This makes it possible to effectively reduce or eliminate overflow or oversplashing from the ventilation window to the outside.

[0113] In summary, the advantages of the invention include, among other things, the ability to improve jet shaping, jet comfort, and jet pattern. This is particularly addressed by the present invention for circular jet shapes with aeration. Another advantage is the improved air mixing, which can have a positive effect on jet shaping, especially at low flow rates.

[0114] This is made possible by the following inventions: 1. Precise alignment of the mixing stage's impact structures to the holes in the splitter plate: What all designs have in common is that the slats enable very precise alignment to the hole pattern of the splitter plate and also facilitate assembly. This is achieved in the one-piece solution by injection molding or, in the two-piece solution, by a non-circular locking contour. The precise positioning of inserts (grids), which was previously common in the state of the art, is no longer necessary. This can simplify assembly work and reduce tolerances that impair jet quality. 2. Increased admixture of air through air ducts embedded in a splitter plate, which enable increased air intake, as they enable an improved connection between the outside space and the point of the strongest negative pressure (outlet nozzles of the splitter plate).This is particularly advantageous when previously known arrangements cannot draw enough air into the mixing chamber. The invention makes it possible to minimize or even completely eliminate the distance between the ventilation windows and the dispersing stage in order to draw in more air. Since the speed of the individual jets, which is highest at the outlets of the dispersing stage, or the negative pressure in the area of ​​the dispersing stages (at their underside), is highest, a ventilation window at this height acts like a "targeted air guide" or "targeted air channel." A distance of just 3 mm below the dispersing stage can result in a significant pressure drop. This advantage is particularly evident in variants that only have low flow rates (water-saving jet regulators).Implementation of splash protection through the position / high positioning of ventilation inlets: It has been shown that the outflow of "droplet spray" from the previously known ventilation windows can significantly influence the spray quality. Furthermore, if fittings are tilted (almost all fittings have an outflow angle other than 90°), gravity can cause water to escape from the (lowest) ventilation windows. This can also significantly influence the spray quality. By adjusting the position of the ventilation windows and the design of the air ducts on the downstream side of the splitter stage, this effect can be significantly reduced or even completely eliminated. The present invention therefore represents a significant product improvement.

[0115] The invention will now be described in more detail by means of exemplary embodiments, but is not limited to the exemplary embodiments. Further exemplary embodiments result from combining the features of one or more claims with one another and / or with one or more features of the exemplary embodiments.

[0116] It shows Fig. 1 shows a first variant of a sanitary insert unit in use position in an axial section, Fig. 2 shows a second variant of a sanitary insert unit in use position in an axial section, Fig. 3 shows the sanitary insert unit according to Fig. 2 in a opposite Fig. 2 rotated axial section, Fig. 4the sanitary insert unit according to Fig. 2 in a opposite Fig. 2 and Fig. 3 rotated axial section in three-dimensional oblique view, Fig. 5 the isolated splitter stage from Fig. 2 in a three-dimensional oblique view of the inflow side, Fig. 6 the insulated housing part from the Fig. 1 and 2in a three-dimensional axial section, Fig. 7 the isolated splitter stage from Fig. 2 in a three-dimensional oblique view of the downstream side, Fig. 8 the isolated splitter stage from Fig. 1 in a three-dimensional oblique view of the downstream side, Fig. 9 a detailed view of Fig. 1 , Fig. 10 a further three-dimensional sectional view of the embodiment according to Fig. 1 , Fig. 11 a three-dimensional oblique view of an outflow side of an isolated splitter stage of a further embodiment according to the invention, Fig. 12 a three-dimensional oblique view of an outflow side of an isolated splitter stage of a further embodiment according to the invention without a carrier, Fig. 13 a three-dimensional oblique view of a carrier matching the splitter stage, Fig. 14 an axial section through the assembled combination of splitter stage according to Fig. 12 with carrier according to Fig. 13, Fig. 15 a three-dimensional oblique view of an outflow side of an isolated splitter stage of a further embodiment according to the invention, Fig. 16 an axial section through the splitter stage according to Fig. 15 , Fig. 17another, opposite Fig. 16 Axial section rotated by 90° through the disassembly stage according to Fig. 15 Fig. 18 shows a further embodiment of a hidden type sanitary insert according to the invention in a three-dimensional sectional view, Fig. 19 shows a further embodiment of the invention in a three-dimensional sectional view, Fig. 20 shows a further disassembly stage for use in a sanitary insert unit according to the invention, Fig. 21 shows a further sanitary insert unit according to the invention with a disassembly stage according to Fig. 20 , Fig. 22 an oblique view of the interior of a housing part - the so-called basket - of the insertion unit according to Fig. 21, Fig. 23 a view of an inflow side of a further splitter stage and Fig. 24 a view of an outflow side of the splitter stage on Fig. 23 .

[0117] The figures are described jointly below, where appropriate. Structurally and / or functionally similar or identical components and functional units are designated with the same reference numerals and are not described separately. The explanations therefore apply accordingly to all figures, unless otherwise stated.

[0118] Figure 1 shows a sanitary insert part, designated as a whole by number 1. The sanitary insert part 1 is designed, for example, as a jet regulator, which is attached by a mouthpiece 2 to an outlet piece 3, for example to an outlet pipe, of a sanitary fitting not further shown.

[0119] For this purpose, the mouthpiece 2 has, in a manner known per se, a thread 4 which is screw-fastened to the outlet piece 3 with a corresponding counter-thread 5.

[0120] Shown here is a variant in which the mouthpiece 2 has an external thread. In further embodiments, the mouthpiece 2 has an internal thread that can be screwed onto a corresponding counter-thread 5.

[0121] In further embodiments, the thread 4 is formed directly on the sanitary insert 1, so that the sanitary insert 1 can be screwed directly. A mouthpiece is then not required.

[0122] The sanitary insert part 1 has, in a manner known per se, a splitter stage 6 and a mixing stage 7 fluidically arranged downstream of the splitter stage 6.

[0123] The mixing stage 7 is formed in a housing part 8 to which the splitter stage 6 is suspended.

[0124] Figure 9shows a detailed enlargement from Figure 1 .

[0125] A ventilation duct 9 leads from the outside into an interior space 10 of the mixing stage 7.

[0126] To form the ventilation passage 9, a first part 11 (here, the housing part 8) and a second part 12 (here, the disassembly stage 6) are connected to each other. The connection is such that a dividing line (not shown) between the two parts 11, 12 runs along the ventilation passage 9.

[0127] The ventilation duct 9 guides air along an air flow direction 13 through an air inlet 14 into the interior 10 of the mixing stage 7.

[0128] The two parts 11, 12 are thus connected to each other along a separation that runs along the air flow direction 13. On a downstream side 15 of the separation stage 6, which faces the mixing stage 7, an air duct 16 is formed for this purpose, which is open when the separation stage 6 is separated. The separation line is horizontal, i.e., perpendicular to the vertically aligned joining direction. The separation line (as the intersection of the separation surface with the ventilation passage) has further vertically extending sections before and after this section, which are not of interest here.

[0129] The part of the ventilation passage 9 which is formed in the first part 11, i.e. the housing part 8, is delimited by the first part 11 along a closed circumference.

[0130] In part 12, i.e. the disassembly stage 6, the ventilation passage 9 is only limited as an air duct 16 open on one side, which is only closed by the first part 11. Figure 8 shows the separation stage 6 in a view of the side 15 facing the mixing stage 7. It can be seen that a structure 17 consisting of a plurality of air channels 16 is formed on the side 15.

[0131] This structure 17 interacts with a counter-structure 18 on the first part 11, i.e. the housing part 8, to form the ventilation passage 9.

[0132] From the enlarged view in Figure 9 It can be seen that the air duct 16, when completed with the counter-structure 18, forms part of the ventilation passage 9 and thus connects the air inlet 14 with the interior 10 of the mixing stage 7.

[0133] By comparing the figures according to Figure 6 and Figure 8It can be seen that the structure 17 and the (counter) structure 18 are open at the top and bottom respectively and are thus free of undercuts.

[0134] The housing part 8 has an outlet step 19 formed at its downstream end, which has an outlet structure in the manner of a flow straightener at the water outlet.

[0135] The housing part 8 with the outlet structure 20 forms the so-called basket.

[0136] In a further embodiment, an outlet structure is missing on the housing part 8, and the arrangement 41 of flow obstacles 32 is open and free downwards.

[0137] The ventilation duct 9 has a length which is several times longer than a wall thickness 21 of the housing part 8 (measured near the boundary edge 23).

[0138] Figure 9clearly shows that the air flow direction 13 describes a U-turn 22. The entry of this air flow direction 13 into the interior 10 forms a ventilation window 24 that is axially aligned and opens at the level of the underside 15 of the splitter stage 6. The ventilation window 24 is delimited downwards (downstream) by a boundary edge 23 formed on the housing part 8.

[0139] The ventilation window 24 is thus located at the level of, or slightly above, the outlets 26 of the splitter nozzles 27 in the splitter stage 6, measured in a main flow direction 25. The strongest negative pressure prevails at the bottom 15 of the splitter stage. The ventilation window or ventilation duct is optimally positioned there, as it draws in a large amount of air and directs it into the interior 10 of the mixing stage 7.

[0140] Since there are several air ducts 16, several ventilation passages 9 are defined, which run together in sections.

[0141] Figure 2 - 3 and 7 show a further embodiment of the invention.

[0142] The embodiment according to Figure 2 - 3 and 7 differs from the embodiment according to Figure 1 by the fact that the underside 15 of the disassembly stage 6, as in Figure 7 As can be seen, it is essentially planar. Thus, a plane or flat structure 17 is formed, which results in the air inlet 14 being closed in the housing part 8. Figure 1 The existing fluidic connection via the ventilation passage 9 is thus in the embodiment according to Figure 2 interrupted.

[0143] Figure 2 is therefore used to generate an unventilated, for example laminar, jet.

[0144] Back to the example according to Figure 1 is in Figure 4It can be seen that the disintegrator stage 6 encloses a gap 28 with the housing part 8, which is closed by a lip-shaped sealing element 29 against the housing part 8.

[0145] This sealing element 29 is deformable and ensures a tight seal above the splitter stage 6. This tightness is further increased by the applied working pressure, since the sealing element 29 is pressed against the housing part 8 by the working pressure.

[0146] A reducing stage 30, which is formed upstream of the splitter stage 6, is clipped into the housing part 8 and thus holds the splitter stage 6 in a suspended position.

[0147] A front strainer 31 is clipped onto the reducing stage 30, which can be designed, for example, as a throttle or as a flow regulator.

[0148] The sealing element 29 is formed in one piece on the disassembly stage 6 and is molded onto it.

[0149] In a further embodiment, the sealing element 29 is additionally or alternatively formed on the reducing stage 30.

[0150] In the representations according to Figures 4, 5 and 6 As can be seen from Figures 7 and 8, the previously described embodiments each represent a sanitary insert 1 with a round basic shape. Other basic shapes, in particular cuboid basic shapes, are also realized in further embodiments.

[0151] The sanitary insert parts 1 can therefore be easily connected to a sanitary fitting by means of a screw connection.

[0152] In each of the illustrated embodiments, an arrangement of flow barriers 32 is provided in the interior space 10 of the mixing stage 7. Each of the flow barriers 32 serves to further break down individual jets emerging from the breakup nozzles 27 of the breakup stage 6 and to deflect them into the interior space 10, so that a thorough mixing of the individual jets—in the case of a ventilated sanitary insert 1, additionally with air—is achieved in the mixing stage 7.

[0153] The flow obstacles 32 are each formed on a support 33 and protrude from this laterally, i.e. transversely to the main flow direction 25, into the interior 10.

[0154] The support 33 is designed in such a way that it structurally divides the interior space 10 into two subspaces 34, 35.

[0155] The support 33 is suspended from the underside 15 of the disassembly stage 6.

[0156] In the embodiments according to the Figures 1 to 11the carrier 33 is formed in one piece on the disassembly stage 6.

[0157] In the embodiment according to Figures 12 to 14 the support 33 with the flow obstacles 32 is formed separately from the splitter stage 6 and is integrally connected to this form.

[0158] Due to this spatial subdivision, there is a risk that the beam cross-section is elongated along its longitudinal extent of the carrier 33, so that the emerging beam no longer has a round cross-section.

[0159] To prevent this, pressure equalization recesses 36 are incorporated into the support 33, which is essentially wall-like. The pressure equalization recesses 36 can, for example, be open or closed (in the circumferential direction around the recess). In the latter case, they form pressure equalization openings 37.

[0160] A plurality of such pressure equalization openings 37 form fluid paths 38, 39, 40, which enable fluidic exchange between the subchambers 34 and 35.

[0161] This compensation, which induces a cross-flow, leads to a return to the round cross-sectional shape of the exiting water jet.

[0162] The fluid paths 38, 39 and 40 are independent of each other and can thus achieve a good balance between the flow conditions in the sub-chamber 34 and the sub-chamber 35.

[0163] The pressure equalization recesses 36 have a total area that is at least 40% of the area of ​​a longitudinal section of the mixing stage.

[0164] Thus, good cross-flow can be achieved along the fluid paths 38, 39, 40. Conversely, this means that the carrier 33 covers less than 70% or less than 60% of the cross-section of the mixing stage 7.

[0165] The flow obstacles 32 form an arrangement 41 which, in the embodiments shown, projects laterally or transversely to the main flow direction 25 beyond the carrier 33 in two dimensions (horizontally or transversely to the main flow direction 25).

[0166] The Figures 15 to 17 show a further embodiment of the invention.

[0167] For the sake of simplicity, only the disassembly stage 6 is shown here, which is integrated into the housing part 8 according to Figure 1 and can be supplemented with the reduction level 30.

[0168] The embodiment according to the Figures 15 to 17 differs from the preceding embodiments in that downstream of the carrier 33, below the flow obstacles 32, a support 42 is formed, with which the flow obstacles 32 are supported on the outlet step 19 and there more precisely on the outlet structure 20.

[0169] The support 42 is circular, in particular ring-shaped, and is arranged laterally offset from a center of the carrier 33.

[0170] Between the arrangement of the flow obstacles 32 and the outlet structure 19, an intermediate space 43 is formed, which further promotes a fluid exchange between the partial spaces 34 and 35 and which enables the insertion of additional inserts.

[0171] In Figure 5 It can be seen that the splitter nozzles 27 are arranged in an array 44 of rows 45. The rows 45 are formed along a longitudinal direction of the flow obstacles 32. It can be seen that the flow obstacles 32 of an upper tier 46 are arranged in a downstream extension of the splitter nozzles 27 and thus of the rows 45. The individual jets therefore emerge from the splitter nozzles 27 directly and preferably centrally onto the flow obstacles 32.

[0172] The one-piece molding of the carrier 33 with the flow obstacles 32 on the splitter stage 6 automatically ensures the correct alignment of the flow obstacles 32 to the rows 45.

[0173] The splitter nozzles 27 are each straight and aim at an associated flow obstacle 32.

[0174] In the embodiment according to the Figures 12 to 14 the carrier 33 is not formed integrally with the disassembly stage 6, but is connected to a locking connection 49 via an interface 48.

[0175] The interface 48 is non-circular and causes the splitter stage 6 and the carrier 33 to be aligned in a defined manner with the flow obstacles 32 with respect to rotations about a longitudinal axis running parallel to the main flow direction 25.

[0176] From the Figures 7 and 8 It can be seen that in the embodiments according to Figure 1 and Figure 2the two levels 46 and 47 of flow obstacles 32 are parallel to each other but laterally offset.

[0177] In the embodiment according to Figure 11 the flow obstacles of the two floors 46, 47 are arranged crossed to each other.

[0178] The embodiments according to the Figures 1 and 2 form variants of a series of sanitary insert parts 1, whereby both variants have identical housing parts 8, reducing stages 30 and front strainers 31, while the splitter stages 6 on the underside 15 differ in terms of the structure 17.

[0179] In this way, a variant according to Figure 1 formed, in which an air inlet 14 is connected to the interior 10 via the ventilation passage 9 in order to generate an aerated water jet.

[0180] The second variant according to Figure 2has a closed ventilation passage 9 and thus a closed air inlet 14, so that an unventilated water jet is generated.

[0181] In the figures it can be seen that the ventilation passage 9 is delimited by a circumferential annular space 50, which is part of the interior space 10 of the mixing stage 7.

[0182] In Figure 12 the deflecting surface 51 can be seen, by which at least one deflection of the air flow in the air duct 16 is forced.

[0183] In Figure 12 It can also be seen that each ventilation passage 9 in the second part 12 is limited in the circumferential direction by two boundaries 52.

[0184] Also Figure 6 shows these circumferentially acting limitations 52 for the first part 11.

[0185] Fig. 18shows a sanitary insert part 1 in which the thread 4 is formed on the housing part 8. Thus, this insert part 1 can be completely screwed into the fitting without a mouthpiece 2, resulting in a hidden type.

[0186] Fig. 19 shows a sanitary insert in which the boundary edge 23 is arranged above the outlets 26. This is even more advantageous for preventing overflow events at the ventilation window 24 or through the ventilation duct 9. These overflow events can be caused, for example, by backflow or splashing water within the mixing stage 7.

[0187] In the figures it can be seen that the housing part 8 as the first part 11 always forms a section of the ventilation passage 9, which is delimited by a double wall 53 of the housing part 8.

[0188] In a further embodiment, the air ducts 16 can be connected to one another, for example along the Figure 12 shown dashed line. Thus, air can be easily guided to centrally located disperser nozzles 27. In this way, networks of air ducts 16 can also be formed in the disperser stage 6.

[0189] The splitter stage 6 rests flat on the boundary edge 23, with the air channels 16 deviating from this contact plane to allow air to pass through. In the sanitary insert part 1, it is therefore proposed according to the invention to structure a splitter stage 6 such that it can form a ventilation passage 9 with a further part 11, which leads into the interior 10 of a mixing stage 7, and / or to arrange flow obstructions 32 in the mixing stage 7 on a support 33 such that the mixing stage 7 is divided into at least two sub-chambers 34, 35 (or three or more sub-chambers), with pressure equalization recesses 36 on the support 33 ensuring that a transverse flow transverse to the main flow direction 25 of the water flow enables equalization between the sub-chambers 34, 35.

[0190] Figs. 20 and 21show a further embodiment of the invention. Components and functional units that are functionally and / or structurally similar or identical are depicted and / or labeled in the same way. The preceding statements therefore apply accordingly.

[0191] Each of the air channels 16 is delimited and enclosed by an axially aligned and circumferentially formed sealing surface 55. The sealing surface 55 is formed on the side of the splitter stage 6 facing the mixing stage 7.

[0192] A support surface 65 facing the disassembly stage 6 is formed on the housing part 8.

[0193] The support surface 65 cooperates with the sealing surface 55 to form a seal. Fig. 22 shows the position of the annular support surface 65 on the housing part 8.

[0194] Thus, a gap existing between the reducing stage 30 and the housing 8 and / or a leakage path leading to the outside between the splitter stage 6 and the reducing stage 30 is sealed.

[0195] The sealing surface 55 is arranged without undercut relative to a channel base of each of the air channels 16.

[0196] Each air duct 16 is aligned longitudinally, in particular parallel, to the flow obstacles 32.

[0197] At a free end 56 of the carrier 33, a projection 57 is formed which projects downwards, i.e. away from the splitter stage 6, beyond an end extension 58 of the arrangement 41 of flow obstacles 32.

[0198] The maximum extension 59 of the support 33, measured from a downstream side 60 of the splitter stage 6, is at least 0.5 mm, here even 0.6 mm, greater than a maximum extension 58 of the arrangement 41 of flow obstacles 32.

[0199] Both dimensions are measured from the downstream side 60 of the splitter stage 6 to the point of their respective greatest extension.

[0200] The end projection 57 of the support 33 maintains a distance 63 of at least 0.5 mm from its adjacent flow obstacles 64 of the arrangement 41 in an area 61 around its base 62.

[0201] Fig. 23 and Fig. 24 show a further disassembly stage 6, which can be used in each of the illustrated embodiments. The disassembly stage 6 according to Fig. 23 has splitter nozzles 27 with a round cross-section. The splitter nozzles 27 are arranged in an array 44 of several rows 45, each row 45 being precisely aligned with a flow obstacle 32, for example by a one-piece connection (see e.g. Fig. 5 ) or by a positive connection (see e.g. Fig. 14) of the carrier 33 with the disassembly stage 6. Otherwise, the explanations for the other disassembly stages 6 shown apply accordingly.

[0202] The figures show that the flow obstacles 32 are forcibly aligned to positions of splitter nozzles 27 of the splitter stage 6 for passing water by the connection of the carrier 33 to the splitter stage 6.

[0203] Thus, a reproducible and automatic alignment of the splitter nozzles 27, from which the individual jets emerge along an outflow direction of the splitter stage 6, relative to an orientation of the flow obstacles 32 is achieved.

[0204] The forced alignment eliminates the degree of freedom of rotation around a longitudinal axis, which normally occurs when inserts are used as flow obstacles.

[0205] The splitter stage 6 is designed as a splitter plate. This results in a flat arrangement of the splitter nozzles 27 perpendicular to the longitudinal axis.

[0206] In further embodiments, the splitter stage 6 is designed as a diffuser. Here, too, a one-piece or positively torque-resistant connection to a carrier 33 can achieve the described advantages.

[0207] It is evident from the examples that the arrangement of the splitter nozzles 27 is congruent to a shape of the flow obstacles 32, cf. for example Fig. 5 . Thus, the splitter nozzles 27 can be easily covered by subsequent flow obstacles 32.

[0208] By aligning the dispersing nozzles 27 with the flow obstacles 32 prior to assembly, the outflow directions of the individual jets of the dispersing nozzles 27 are easily determined, which impinge centrally on the respective downstream flow obstacle 32. This ensures optimal atomization and mixing with air.

[0209] A flow obstruction 32 is positively aligned with each splitter nozzle 27 of splitter stage 6 so that the water passing through each splitter nozzle 27 strikes the flow obstruction 32 centrally. A deep (direct) penetration of the emerging individual jets into the mixing chamber of mixing stage 7 is thus avoidable.

[0210] It is particularly advantageous if the flow obstacle 32 is arranged in a topmost tier 46 of a stacked arrangement of several tiers 46, 47 of flow obstacles 32. Thus, the flow obstacle 32 can be arranged particularly close behind the splitter nozzle 27 or at the splitter stage 6.

[0211] The flow obstacles 32 are aligned parallel to each other within a level 46, 47. The splitter nozzles 27 are arranged in corresponding rows that match or are coordinated with the flow obstacles.

[0212] For each flow obstacle 32, there is at least one splitter nozzle 27 of splitter stage 6 in an uppermost level 46, the water passing through which impinges centrally on the flow obstacle 32. In fact, there are a plurality of such splitter nozzles 27 for each flow obstacle 32.

[0213] Both Figures 1 to 11 and 15 to 21the carrier 33 is integrally formed onto the splitter stage 6 on the downstream side.

[0214] At Figures 12 to 14 the carrier 33 is connected to the disassembly stage 6 via a non-detachable connection, for example a locking connection 49.

[0215] It can be seen that in the exemplary embodiments, the housing part 8 surrounds the mixing stage 4 and in particular the flow obstacles 32 laterally, i.e., for example, transversely to the main flow direction, and delimits them to the outside. The housing part 8 thus spatially separates an air intake chamber, which leads to the mixing stage 4 via the air inlet 14, from the mixing stage 4.

[0216] The connection must have a symmetry-breaking interface 48 (here, for example, a square one), which defines a forced alignment. Thus, a positively predetermined forced alignment is realized. List of reference symbols

[0217] 1 Sanitary insert 2 Mouthpiece 3 Outlet piece 4 Thread 5 Counter thread 6 Disintegrator stage 7 Mixing stage 8 Housing part 9 Ventilation passage 10 Interior 11 (first) part 12 (second) part 13 Air flow direction 14 Air inlet 15 (bottom) side 16 Air duct 17 Structure 18 (counter) structure 19 Outlet stage 20 Outlet structure 21 Wall thickness 22 U-turn 23 Boundary edge 24 Ventilation window 25 Main flow direction 26 Outlet 27 Disintegrator nozzle 28 Gap size 29 Sealing element 30 Reducing stage 31 Front screen 32 Flow obstruction 33 Support 34 Subchamber 35 Subchamber 36 Pressure equalization recess 37 Pressure equalization opening 38 (first) Fluid path 39(second) Fluid path 40(third) Fluid path 41Arrangement of flow obstacles 42Support 43Gap 44Arrangement of rows 45Row 46(first) tier 47(second) tier 48Interface 49Locking connection 50Annulus 51Surface 52Boundary 53Double wall 55Sealing surface 56Free end of 33 57Protrusion 58(end-side) extension 59Maximum extension 60Downstream side 61Area 62Foot 63Distance64adjacent flow obstacles 65support surface

Claims

1. Sanitary insert part (1), in particular a jet regulator, with a splitter stage (6) and with flow obstacles (32) arranged downstream of the splitter stage (6), preferably in a mixing stage (7), and / or at a downstream end (51) of a mixing stage (7), extending transversely to a main flow direction (25), wherein a support (33) is formed downstream of the splitter stage (6), characterized in that the flow obstacles (32) are forcibly aligned to positions of splitter nozzles (27) of the splitter stage (6) for water passing through by the connection of the carrier (33) to the splitter stage (6).

2. Sanitary insert (1) according to the preceding claim, characterized in that for each splitter nozzle (27) of the splitter stage (6), a flow obstacle (32), in particular in an uppermost level (46), is forcibly aligned in such a way that the water passing through the splitter nozzle (27) preferably strikes the flow obstacle (32) centrally.

3. Sanitary insert (1) according to the preceding claim, characterized in that the mixing stage (7) is laterally enclosed by a housing part (8), in particular a housing part (8) carrying the splitter stage (6).

4. Sanitary insert (1) according to one of the preceding claims, characterized in that the flow obstacles (32) are aligned parallel to one another at least within one level (46, 47).

5. Sanitary insert (1) according to one of the preceding claims, characterized in that for each flow obstacle (32) in an uppermost level (46) there is at least one splitter nozzle (27) of the splitter stage (6), the water passing through which preferably strikes the flow obstacle (32) centrally.

6. Sanitary insert (1) according to one of the preceding claims, characterized in that The carrier (33) is preferably formed integrally with the disassembly stage (6).

7. Sanitary insert (1) according to one of the preceding claims, characterized in that Carrier (33) is connected via a connection which defines the forced alignment, in particular wherein the connection is detachable or non-detachable.

8. Sanitary insert (1), in particular with a round basic shape and / or according to one of the preceding claims, with a splitter stage (6) and a mixing stage (7) formed downstream of the splitter stage (6), wherein the mixing stage (7) has an arrangement of flow obstacles (32) lying transversely to a main flow direction (25), wherein the flow obstacles (32) protrude from a support (33), wherein the mixing stage (7) has at least two sub-chambers (34), (35) which are separated by the support (33), characterized in that the carrier (33) has at least one pressure compensation recess (36) fluidically connecting the at least two partial spaces (34), (35).

9. Sanitary insert (1) according to the preceding claim, characterized in thatthe pressure equalization recess (36) is designed as at least one pressure equalization opening (37) and / or that the pressure equalization recess (36) defines at least two, preferably at least three, fluid paths (38), (39), (40) between the partial spaces (34), (35).

10. Sanitary insert (1) according to one of the preceding claims, characterized in that an area of ​​the pressure equalization recess (36) is at least 10% or at least 30% or at least 40% of an area of ​​a longitudinal section of the mixing stage (7) and / or that the at least one pressure equalization recess (36) enables a transverse flow with respect to a main flow direction (25).

11. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a mixing stage (7) in which flow obstacles (32) are arranged, characterized in thatin at least one longitudinal section which runs through the or a support (33) arranged in the mixing stage (7) for the flow obstacles (32), the support (33) covers less than 90%, in particular less than 70%, of the mixing stage (7).

12. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, wherein a mixing stage (7) preferably arranged fluidically downstream of a splitter stage (6) has at least one flow obstacle (32), wherein the at least one flow obstacle (32) is arranged, in particular formed, on a carrier (33), characterized in that the at least one flow obstacle (32) is preferably supported by a support (42) offset laterally to a center of the carrier (33) and / or on an outlet step (19).

13. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, wherein a mixing stage (7) preferably arranged fluidically downstream of a splitter stage (6) has at least one flow obstacle (32) and the flow obstacles (32) are aligned parallel to one another, characterized in that the flow obstacles (32) form an arrangement (41) which projects laterally beyond the support (33) in two dimensions.

14. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, wherein a mixing stage (7) preferably arranged fluidically downstream of a splitter stage (6) has at least one flow obstacle (32) and, characterized in that an intermediate space (43) fluidically bridging the carrier (33) is formed between the flow obstacles (32) and an outlet step (19).

15. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a splitter stage (6) which is held in a housing part (8) forming a mixing stage (7), characterized in that an aeration passage (9) leading into a mixing stage (7) is formed by at least two parts (11, 12) which can be connected to one another.

16. Sanitary insert (1) according to one of the preceding claims, characterized in that a separation of the two parts (11, 12) runs along the ventilation duct (9) or transversely to the ventilation duct (9) and / or that the ventilation duct (9) opens outwards via an air inlet (14) preferably formed in the housing part (8).

17. Sanitary insert (1) according to one of the preceding claims, characterized in thatat least one part (11, 12) of the two parts (11, 12) defines a boundary surrounding the ventilation passage (9) and / or that the ventilation passage (9) is delimited by an annular space (50) of the mixing stage (7).

18. Sanitary insert (1) according to one of the preceding claims, characterized in that at least one of the two parts (11, 12) forces at least one deflection, in particular of more than 60°, of the air flow and / or that each of the two parts (11, 12) limits the ventilation passage (9) in the circumferential direction of the sanitary insert part (1).

19. Sanitary insert (1) according to one of the preceding claims, characterized in that one of the two parts (11, 12), in particular the or a housing part (8), forms a double wall (53).

20. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a splitter stage (6) which is held in a housing part (8) forming a mixing stage (7), wherein at least one air inlet (14) is formed in the housing part (8), characterized in that at least one air duct (16) is formed on a side of the splitter stage (6) facing the mixing stage (7), which air duct (16) connects the at least one air inlet (14) to the mixing stage (7) in the position of use.

21. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least one air duct (16) is delimited, in particular enclosed, by a preferably axially aligned and / or circumferentially formed sealing surface (55).

22. Sanitary insert (1) according to one of the preceding claims, characterized in thata support surface (65) facing the splitter stage (6) is formed on the housing part (8), in particular such that the support surface (65) cooperates in a sealing manner with the or a sealing surface (55) formed on the or a side of the splitter stage (6) facing the or a mixing stage (7).

23. Sanitary insert (1) according to one of the preceding claims, characterized in that the or a sealing surface (55) is arranged without undercut relative to a channel base of the at least one air channel (16).

24. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least one air duct (16) is aligned longitudinally, in particular parallel, to the at least one flow obstacle (32).

25. Sanitary insert (1) according to one of the preceding claims, characterized in thatat a free end (56) of the support (33) a projection (57) is formed relative to an end extension (58) of the or an arrangement (41) of flow obstacles (32).

26. Sanitary insert (1) according to one of the preceding claims, characterized in that a maximum extension (59) of the carrier (33), in particular measured from a downstream side (60) of the splitter stage (6), is at least 0.1 mm or at least 0.3 mm or at least 0.5 mm greater than a maximum extension (58) of the or an arrangement (41) of flow obstacles (32), in particular measured from a downstream side (60) of the splitter stage (6).

27. Sanitary insert (1) according to one of the preceding claims, characterized in thatthe or an end projection (57) of the support (33) over the flow obstacles (32) in a region (61) around its base (62) maintains a distance (63), in particular of at least 0.1 mm or at least 0.3 mm or at least 0.5 mm, from its adjacent flow obstacles (64).

28. Sanitary insert (1) according to one of the preceding claims, characterized in that in both parts (11, 12) the respective structures (17) can be formed without undercuts and / or are open on at least one side.

29. Sanitary insert (1) according to one of the preceding claims, characterized in that one of the two parts (11, 12) is a housing part (8) preferably forming a mixing stage (7) and / or an outlet stage (19) and / or that one of the two parts forms a separating stage (6).

30. Sanitary insert (1) according to one of the preceding claims, characterized in thatthe ventilation passage (9) or a ventilation passage (9) comprising the air duct (16) has a length which is greater than a wall thickness (21) of one of the two parts (11, 12) or of the housing part (8) or which is a multiple of a wall thickness (21) of one of the two parts (11, 12) or of the housing part (8).

31. Sanitary insert part (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a housing part (8) forming a mixing stage (7) preferably arranged fluidically downstream of a splitter stage (6), wherein an air inlet (14) on the housing part (8) is fluidically connected to the mixing stage (7), characterized in that an air flow between the air inlet (14) and the mixing stage (7) describes a U-turn (22).

32. Sanitary insert (1) according to one of the preceding claims, characterized in thata downstream boundary edge (23) of a ventilation window (24) opening into the mixing stage (7) is formed in a main flow direction (25) no deeper than an outlet (26) of a splitter nozzle (27) and / or that at least the or one ventilation passage (9) opening into the mixing stage (7) is arranged at least in a partial area in a main flow direction (25) upstream of outlets (24) of the splitter stage (6).

33. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a splitter stage (6) which is held in a housing part (8) forming a mixing stage (7), wherein at least one air inlet (14) is formed in the housing part (8), characterized in that the splitter stage (7) closes at least one air inlet (14) to the mixing stage (7).

34. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a functional stage, in particular the or a dividing stage (6) or the or a reducing stage (30), which is arranged, in particular suspended, in a housing part (8) forming a mixing stage (7), characterized in that a gap (28) between the functional stage and the housing part (8) is closed with a deformable sealing element (29).

35. Sanitary insert (1) according to one of the preceding claims, characterized in that the sealing element (29) is preferably formed or molded onto one or the functional stage, in particular one or the splitter stage (6) and / or one or the reducer stage (30), in one piece.

36. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, wherein a splitter stage (6) has an arrangement of rows (44) of at least two splitter nozzles (27) each, characterized in that for each row (45) a flow obstacle (32) is connected to the splitter stage (6) and is preferably arranged directly downstream of the splitter stage (6), and that the flow obstacle (32) is arranged in a downstream extension of the row (45).

37. Sanitary insert (1) according to one of the preceding claims, characterized in that the flow obstacle (32) is integrally connected to the splitter stage (6) and / or suspended from the splitter stage (6) and / or that the splitter nozzles (27) are each designed to be rectilinear and / or that a jet direction of each splitter nozzle (27) is aligned with the associated flow obstacle (32).

38. Sanitary insert (1) according to one of the preceding claims, characterized in that the flow obstacles are arranged in at least two levels (46), (47), in particular with mutually crossing orientations or with mutually parallel orientations between the levels (46), (47), and / or that the disintegrating stage (6) is suspended from a housing part (8) forming an outlet stage (19).

39. Sanitary insert (1) according to one of the preceding claims, characterized in that the flow obstacles (32), in particular via the or a carrier (33), are connected to the fragmentation stage (6) via an interface (48) and / or that the interface (48) forms a latching connection (49) and / or that the interface (48) defines an orientation of the flow obstacles (32) relative to the fragmentation stage (6) with respect to rotations about a longitudinal axis.

40. Sanitary insert (1) according to one of the preceding claims, characterized in thatthe housing part (8) is open on the downstream side or closed by an outlet structure (20).

41. Sanitary insert (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, with a splitter stage (6) which is held in a housing part (8) forming a mixing stage (7), characterized in that a ventilation passage (9) opens into an interior space (10) of the mixing stage (7) at an axially aligned ventilation window (24).

42. Sanitary insert (1) according to one of the preceding claims, characterized in that the splitter stage (6) is designed as a splitter plate with an arrangement of splitter nozzles (27).

43. Sanitary insert (1) according to one of the preceding claims, characterized in that the splitter stage (6) has splitter nozzles (27) with a round cross-section.

44. A series of sanitary insert parts (1), comprising at least two variants of sanitary insert parts (1), wherein both variants each have a corresponding housing part (8) in which a splitter stage (6) is held and in which an outwardly open air inlet (14) is formed, wherein in a first variant the splitter stage (6) forms at least one ventilation passage (9) with the air inlet (14) and in a second variant the splitter stage (6) closes the air inlet (14), in particular wherein the first variant is an insert part (1) according to one of the preceding claims and / or wherein the second variant is an insert part (1) according to one of the preceding claims.

45. Use of a downstream side (15) of a splitter stage (6) for forming a ventilation passage (9) of a sanitary insert (1), in particular according to one of the preceding claims, characterized in thatin the disassembly stage (6) at least one structure is formed which contributes to the formation of the ventilation passage (9).

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