Sanitary insertion part, series and corresponding use

Abstract

The invention relates to a sanitary insertion part (1) and proposes structuring a splitting stage (6) in such a way that together with an additional part (12) said splitting stage can form a ventilation passage (9) leading into the interior (10) of a mixing stage (7), and / or proposes arranging flow obstacles (32) in the mixing stage (7) on a support structure (33) in such a way that the mixing stage (7) is divided into at least two sub-spaces (34, 35) or three or more sub-spaces (34, 35), wherein pressure equalization recesses (36) on the support structure (33) ensure that a crossflow perpendicular to the main flow direction (25) of the water flow enables an equalization between the sub-spaces (34), (35).

Description

[0001] Sanitary insert, series and corresponding use

[0002] The invention relates to a sanitary insert with a disassembly stage which is held in a housing part forming a mixing stage.

[0003] Optionally, at least one air inlet can be formed in the housing part.

[0004] The invention further relates to a sanitary insert with a housing part forming a mixing stage, for example one of the mixing stages already mentioned, wherein an air inlet on the housing part is fluidically connected to the mixing stage. The mixing stage can, for example, be fluidically downstream of a separation stage.

[0005] The invention further relates to a sanitary insert with a disassembly stage, for example the disassembly 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.

[0006] The invention further relates to a sanitary insert with a functional stage, for example a disassembly stage, which is arranged in a housing part forming a mixing stage, for example one of the mixing stages already mentioned. The functional stage can optionally be suspended in the housing part.

[0007] The invention further relates to a sanitary insert with a separation stage, for example one of the separation stages already mentioned, and a mixing stage formed downstream of the separation stage, for example the mixing stage already mentioned, wherein the mixing stage has an arrangement of flow obstructions lying transverse to a main flow direction, for example the flow obstructions already mentioned, wherein the flow obstructions project from a support, and wherein the mixing stage has at least two sub-chambers which are separated by the support. It may be advantageous if the sanitary insert has a round basic shape.

[0008] The invention further relates to a sanitary insert part, with a mixing stage in which flow obstructions are arranged.

[0009] The invention further relates to a sanitary insert, wherein a mixing stage, for example one of the aforementioned mixing stages, which can be fluidically downstream of a separation stage, for example one of the aforementioned separation stages, has at least one flow obstruction, for example one of the aforementioned flow obstructions, wherein the at least one flow obstruction is arranged on a support, in particular integrally formed.

[0010] The invention further relates to a sanitary insert, wherein a mixing stage, which can be fluidically downstream of a separation stage, for example one of the separation stages already mentioned, has at least one flow obstruction and the flow obstructions are aligned parallel to each other.

[0011] The invention further relates to a sanitary insert, wherein a disassembly stage, for example one of the disassembly stages already mentioned, has an arrangement of rows of at least two disassembly nozzles.

[0012] Such sanitary fittings are known, for example, as aerators.

[0013] Typical sanitary inserts include, for example, a pre-filter, a reduction stage, a separation stage, a mixing stage, and / or a discharge stage as functional stages, through which fluid flows in that order. Sanitary inserts are also known in which one or more of these stages are missing.

[0014] The reducing stage can be designed, for example, to reduce a flow rate. For instance, the reducing stage can be configured as a throttle, reducing the flow rate by a factor dependent on a pressure difference within a given operating range. Alternatively, the reducing stage can be configured 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 incorporate an elastic control element that is deformable by operating pressure and changes the area of ​​a flow opening depending on the pressure.

[0015] One possible function that can be achieved with a separation stage is to fluidically decouple flow conditions upstream of the separation stage from flow conditions downstream. This is often accomplished by an arrangement of separation nozzles, which can be configured, for example, as a separation plate, a diffuser, or in some other way. Another characteristic of a separation stage might be, for instance, the separation of an incoming water flow into a multitude of individual jets.

[0016] 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.

[0017] 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.

[0018] A final outlet stage, which can be designed as an outlet 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.

[0019] The invention is based on the objective of simplifying the manufacture of a sanitary insert and / or increasing the possible uses of a sanitary insert.

[0020] To solve the aforementioned problem, the invention proposes the features of claim 1. In particular, to solve the aforementioned problem in a jet regulator of the type described above, the invention proposes that the flow obstructions are forcibly aligned with the positions of the holes of the jet regulator for water flow, especially jet nozzles, by means of the connection of the support structure, in particular the carrier, with the separation unit, in particular the separation stage. The invention recognizes that a reproducible alignment of the holes from which the individual jets of the separation unit emerge, relative to an orientation of the flow obstructions, is advantageous for a consistent quality of jet generation across many jet regulators. The forced alignment can thus imitate the degree of freedom that normally results when using inserts as flow obstructions.Additional alignment aids, such as guide grooves, guide ribs, or other shapes on inserts, are unnecessary. This can also facilitate largely automated manufacturing.

[0021] It is particularly advantageous if the disassembly unit is designed as a disassembly plate. The resulting flat arrangement of holes makes it especially easy to align them with flow obstructions.

[0022] It is advantageous if the arrangement of the holes is congruent with the shape of the flow obstructions. This allows the holes to be easily covered by subsequent flow obstructions.

[0023] The aforementioned holes can each be configured as an outlet for the disassembly nozzles of the disassembly unit. This allows for the simple predefining of the outflow directions of the individual jets, making alignment even more feasible.

[0024] The sanitary insert, in particular the aerator, can be attached to the spout of a sanitary fitting, for example, by means of a nozzle. The nozzle may have a thread that can be screwed into a mating thread. Additionally or alternatively, the sanitary insert itself may have a thread and / or be attachable to the sanitary fitting with an additional threaded connecting sleeve. In this case, a nozzle is not required.

[0025] In one design, it can be provided that a flow obstruction is oriented towards each hole of the separation unit in such a way that the water passing through the hole encounters the flow obstruction. Deep penetration of the emerging individual jets into the mixing chamber is thus avoided.

[0026] It is particularly advantageous if the flow obstruction is located on the top level of a stacked arrangement of flow obstructions. This allows the flow obstruction to be positioned very close to the opening. For example, the openings of the separation unit, especially the separation nozzles, can be arranged in one or more rows, as described in this document. In this case, a flow obstruction can be oriented in relation to each row of openings, and especially to each row of separation nozzles, so that the water passing through the opening encounters the flow obstruction. This also provides the aforementioned advantage of preventing the 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, along the entire length between the separation stage and a discharge stage, particularly a discharge structure. Thus, for instance, an interior space of the mixing stage—in particular, a space or system of spaces accommodating flow obstructions—can be closed or delimited upstream by the separation stage, downstream by the discharge stage, and laterally by the housing part. This allows for a compact or at least enclosed insert.

[0028] For example, the housing part can carry the disassembly stage. This allows for a particularly simple assembly using as few parts as possible.

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

[0030] The housing part can have a preferably circumferential retaining projection on its outer surface, which can be gripped with a mouthpiece. Alternatively or additionally, the housing part can have a thread on its outer surface, allowing it to be inserted into a

[0031] The sanitary fitting is screw-in. 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.

[0032] In one design, the flow obstructions can be aligned parallel to each other, at least within a single level. This allows individual rows of holes to be effectively covered by a flow obstruction each.

[0033] In one design, it can be provided that for each flow obstruction on the uppermost level, at least one hole of the separation unit exists, the water passing through which preferably strikes the flow obstruction centrally. Thus, non-functional flow obstructions are unnecessary and / or existing flow obstructions can be used efficiently for jet splitting and mixing.

[0034] In one embodiment, the support structure can preferably be integrally molded onto the disassembly unit. This allows the flow obstructions to be aligned with the holes in a single manufacturing step, eliminating the need for additional assembly steps.

[0035] In one embodiment, the support structure can be connected via a joint that defines the forced alignment. This joint can be either detachable or permanent. An advantage is that the support structure with the flow restrictors can be combined with different disassembly units, and vice versa. A further advantage is that the support structure with the flow restrictors can be manufactured separately from the disassembly unit. This can simplify tool design for injection molding. With a detachable joint, the aforementioned combination can be modified subsequently, allowing for adaptation to changing requirements while minimizing waste. With a permanent joint, the advantage is that it prevents the undesirable loosening or subsequent replacement of components of the combination.

[0036] The connection can have a symmetry-breaking interface, which enforces a forced alignment. A positively determined forced alignment represents a simple means of realizing the advantages of the invention.

[0037] Preferably, the connection is permanent, for example by means of a snap-fit ​​connection. This prevents accidental disconnection of the connection before installation in a working position.

[0038] Alternatively or additionally, the features of the second independent claim can be provided according to the invention to solve the aforementioned problem. In particular, it is thus proposed according to the invention, in a sanitary insert of one of the types described above, that the support has at least one pressure equalization recess fluidically connecting the at least two sub-chambers. It is advantageous that pressure equalization can take place between the sub-chambers, so that an impairment of the jet cross-section by the support can be at least partially or completely compensated.

[0039] 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.

[0040] It has been found that a breaking of rotational symmetry or, more generally, of symmetry through the formation of, for example, a planar support leads to the formation of a preferred direction in the flow cross-section, through which the jet cross-section deviates undesirably from the cross-section of the mixing stage or the cross-sectional shape of the mixing stage.

[0041] In an advantageous design, the pressure equalization recess can be configured as at least one pressure equalization opening. This improves the stability of the support against deformation and vibrations.

[0042] In one embodiment of the invention, the pressure equalization recess can define at least two fluid paths between the partial spaces. This makes it possible to form circular flows, which counteract the aforementioned formation of a preferred direction in the jet cross-section and thus help to create 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 designing the pressure equalization recess as several pressure equalization openings that are not interconnected.

[0043] Each of the pressure equalization openings can then, for example, define a separate fluid path for equalization between the sub-chambers. In one embodiment of the invention, it can be provided that the area of ​​the pressure equalization recess comprises at least 10%, at least 15%, or at least 20% of the area of ​​a longitudinal section of the mixing stage. It has been found that this allows for a substantial contribution to mixing across the separation of the two sub-chambers. This effect is particularly advantageous when at least 30% or even at least 40% of the area of ​​the longitudinal section is occupied. It is especially advantageous if the pressure equalization recess occupies as large a proportion as possible, while also taking into account the remaining stability of the support and the space required for the flow obstructions. Particularly good results can be achieved in the range of 50–60%, but also

[0044] Pressure equalization recesses with at least 60% or even at least 70% surface area are possible.

[0045] In one embodiment of the invention, the at least one pressure equalization recess may allow transverse flow with respect to a main flow direction. The main flow direction may, for example, be defined by vectorially mapping a flow direction at each point of the interior or of the sanitary insert as a whole to a single point, whereby the main flow direction can be calculated as the average of all these flow directions. Frequently, the main flow direction is the direction in which the sanitary insert can be inserted into a sanitary fitting.

[0046] The formation of a cross-flow has a balancing effect between the sub-spaces, which can result in a more uniform cross-sectional image of the emerging water jet.

[0047] In particular, this method makes it possible to avoid geometrically induced deformations of the jet cross-section using simple means. Specifically, it allows for a jet cross-section that is adapted as closely as possible to the clear cross-section or cross-sectional shape of, for example, the aforementioned mixing chamber or discharge stage, especially discharge structure.

[0048] To solve the aforementioned problem, the invention alternatively or additionally proposes the combination of features of the third independent claim for a sanitary insert. According to the invention, it is thus particularly proposed for a sanitary insert of one of the types already described above that, in at least one longitudinal section running through a support for flow obstructions arranged in the mixing stage, in particular through the aforementioned support, the support covers less than 90% of the mixing stage. This creates a substantial free space for forming a pressure equalization recess, through which equalization or cross-flow between the subspaces 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, although lower coverages are also achievable.

[0049] The area of ​​the mixing stage can be defined, for example, as the cross-sectional area of ​​the interior space when the support and flow obstructions have been removed.

[0050] Alternatively or additionally, the invention proposes the combination of features of the fourth independent claim to solve the aforementioned problem in a sanitary insert. In particular, the invention proposes that, in a sanitary insert according to one of the types already described above, the at least one flow obstruction is supported offset on a discharge step. Specifically, the at least one flow obstruction can be supported on the discharge step by a support offset laterally to the center of the support. An advantage of this is that the stability of the flow obstructions against flow-induced deformation can be improved. Thus, supports with smaller covers can be designed, further improving the equalization between the sub-spaces. Particularly favorable configurations result from

[0051] Combination of the described configurations with each other.

[0052] Alternatively or additionally, the invention proposes the combination of features of the fifth independent claim to solve the aforementioned problem in a sanitary insert. According to the invention, in a sanitary insert of one of the types already described above, it is particularly proposed that the flow obstructions form an arrangement that projects laterally beyond the support in two dimensions. It is advantageous that a free space transverse to the orientation of the flow obstructions can be used to form a pressure equalization recess by reducing the support relative to the arrangement of the flow obstructions.

[0053] It is particularly advantageous if the beam has a non-circular cross-section. The overhang in two dimensions thus makes it easy to ensure that the beam also overhangs the arrangement in the dimension in which it has its maximum cross-sectional extent.

[0054] Alternatively or additionally, the invention proposes the features of the sixth independent claim to solve the aforementioned problem in a sanitary insert. In particular, the invention proposes, in a sanitary insert of one of the types described above, that a ventilation passage leading into a mixing stage be formed by at least two connectable parts. This simplifies the production of such a ventilation passage, which, for example, can be used to supply air to a mixing stage to generate an aerated jet. The invention recognizes that ventilation passages, which are generally closed perpendicular to their respective airflow direction, are subject to constraints on their shape when manufactured by injection molding, since the resulting shapes must be demoldable.A two-part design of the ventilation passage, in order to assemble this ventilation passage only in its assembled form, facilitates tool design and thus the manufacturing process for the sanitary insert.

[0055] The two parts can be separated, for example, along the length of the ventilation passage. This allows for the use of outwardly open structures that only form a closed ventilation passage when assembled.

[0056] Alternatively or additionally, the two parts can be separated by a line running perpendicular to the ventilation passage. This allows for the assembly of self-contained sections of the ventilation passage, which can then be routed, for example, through different levels of the sanitary installation.

[0057] In one embodiment of the invention, the ventilation passage can be designed to open to the outside via an air inlet. This allows air to be easily drawn into the mixing stage from the outside. Preferably, the air inlet is formed within the housing part. An advantage of this is that additional air routing outside the ventilation passage is unnecessary.

[0058] In one embodiment of the invention, an airflow direction, for example the airflow direction already mentioned or described below (particularly at each point of the ventilation passage), may run along a separation line between the two parts. The separation line may be oriented transversely, and in particular perpendicularly, to a connection or insertion direction between the parts. Differently oriented separation lines may also be present if more complex surfaces are joined.

[0059] In one embodiment of the invention, the ventilation passage can be limited by an annular space within the mixing stage. Thus, the ventilation passage opens directly into the interior of the mixing stage. Air can therefore be supplied directly.

[0060] In one embodiment of the invention, at least one of the two parts may force at least one deflection, in particular of more than 60°, of the airflow. This enables a particularly compact routing of the ventilation passage and an outlet into the mixing stage as close as possible to the outlets of the separation nozzles. For example, the part may form a deflecting surface for this purpose.

[0061] In one embodiment of the invention, each of the two parts can be configured to limit the ventilation passage in the circumferential direction of the sanitary insert. This allows for a localized air supply.

[0062] In one embodiment of the invention, one of the two parts, in particular, for example, the first part already mentioned, or a housing part already mentioned, may form a double wall. Thus, a closed section of the ventilation passage can be formed in the part.

[0063] Preferably, one part has a circumferentially closed section of a ventilation channel and / or another part has a deflection. Thus, a U-turn can be easily implemented in a corresponding injection mold.

[0064] 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, such as the separation stage, the reduction stage, the mixing stage, or the discharge stage.

[0065] Ventilation passages can also be formed from more than two parts, for example by repeating or combining the two variants just described.

[0066] Alternatively or additionally, the invention proposes the combination of features of the seventh independent claim to solve the aforementioned problem in a sanitary insert. Thus, in particular, to solve the aforementioned problem in a sanitary insert of one of the types described above, it is proposed that at least one air channel be formed on a side of the separating stage facing the mixing stage, which, in the operating position, connects the at least one air inlet to the mixing stage. It has been found that forming an air channel on the separating stage allows for a space-saving arrangement, because the aforementioned ventilation passage can then be formed, at least partially, in the material of the separating stage.

[0067] For example, the air channel can be shaped by forming a recess or a hollow or similar material reduction compared to the rest of the bearing surface on which the disassembly stage rests.

[0068] In the simplest case, this material retraction can have a rectangular cross-section perpendicular to the direction of the air duct. Other cross-sectional shapes, especially concave ones, are also possible.

[0069] The design of the air duct on the side facing the mixing stage, i.e., downstream, has the advantage that a simple modification of a tool for manufacturing the separation stage allows switching between a vented and an unvented variant.

[0070] In general, it can be said that the air duct is designed in such a way that the air duct is bounded at least on both sides by a support surface, so that the support surface forms a ventilation passage closed between its ends with a part, for example, a housing part already described, and / or so that the support surface can seal tightly with a part on which it rests.

[0071] The air channel design at the disassembly stage can be characterized, for example, by modifying a (preferably flat or regular) base body with a three-dimensional structure to form air channels. For instance, an air channel can be formed by a depression, by limiting ribs or other material reductions and / or adjacent material accumulations.

[0072] Preferably, the air duct is open on one side.

[0073] By incorporating the air duct, particularly as part of the aforementioned ventilation passage, in the separation stage, an unventilated aerator can also be easily created by using a separation stage that lacks the aforementioned air duct.

[0074] This helps to reduce the variety of parts in the manufacture of a range of sanitary fittings with different functions.

[0075] In one embodiment of the invention, the at least one air channel may be bounded by a sealing surface that is preferably axially oriented and / or circumferential. This allows for a seal between the disassembly stage and the housing. In particular, the air channel or a system of air channels may be enclosed by the sealing surface. This enables a circumferential seal, especially below or downstream of a sealing lip.

[0076] This design is particularly advantageous when an upstream seal is incomplete.

[0077] In one embodiment of the invention, a bearing surface facing the disassembly stage can be formed on the housing part. This creates a self-sealing sealing surface that results in a tighter seal at higher operating pressures.

[0078] This can be achieved, for example, by the contact surface interacting in a sealing manner with a sealing surface formed on a side facing a mixing stage, such as the aforementioned mixing stage, or the disassembly stage. This creates a particularly simple arrangement that also easily allows for a variant without a sealing surface on the disassembly stage.

[0079] In one embodiment of the invention, a sealing surface, for example the one already mentioned, can be arranged without undercuts relative to the channel base of at least one air channel. This facilitates demolding from an injection-molded mold.

[0080] In one embodiment of the invention, the at least one air channel can be aligned longitudinally, in particular parallel, to the at least one flow obstruction. This also allows for simple demolding.

[0081] In one embodiment of the invention, a projection can be formed at a free end of the carrier relative to an end extension of the flow obstruction or an arrangement of flow restrictions. In another embodiment, the maximum extension of the carrier can be at least 0.1 mm, at least 0.3 mm, or at least 0.5 mm greater than the maximum extension of the flow obstruction or arrangement of flow restrictions. This allows heating elements to be positioned as close as possible to the workpiece on an injection mold if a gate point is formed on the projection. Hot runner injection molding is thus possible as an alternative to cold runner injection molding.

[0082] The extents can be measured, for example, from a downstream side of the breakup stage.

[0083] In one embodiment of the invention, it can be provided that an end projection, for example the aforementioned projection, of the carrier 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 obstructions in a region around its base. This avoids, particularly in hot runner injection molding, the negative effects of a heated injection channel on neighboring structures, especially the flow obstructions.

[0084] In one embodiment of the invention, it can be provided that the respective structures in both parts can be formed without undercuts. It is advantageous that the aforementioned ventilation passage, which is composed of two (or more) parts, can be easily formed in the respective parts, and simple demolding is achievable.

[0085] Alternatively or additionally, it can be provided that the respective structures in both parts are open on at least one side. In this and the preceding embodiment, it can be provided that the structures each form the ventilation passage partially or section by section. An advantage of this embodiment is that complex structures that are difficult to demold can be avoided.

[0086] In one embodiment of the invention, one of the two parts (for example, the aforementioned first part) may be a housing part. An advantage of this is that additional parts are avoided which are not otherwise necessary for the design of a sanitary insert.

[0087] Preferably, the housing component forms a mixing stage and / or a discharge stage. This achieves a functional dual function in one part, which can be advantageous for simplified manufacturing.

[0088] In one embodiment of the invention, it can be provided that one of the two parts (for example, the aforementioned second part) forms a disassembly stage. This also makes it easy to achieve a functional dual assignment of parts that are already present.

[0089] In one embodiment of the invention, the ventilation passage may have a length greater than the wall thickness of one of the two parts, in particular the aforementioned housing part, or a multiple thereof. An advantage of this is that a ventilation passage can be created that extends beyond simply passing through a wall and allows the incoming fluid to be guided over a larger section.

[0090] Preferably, the ventilation passage has at least one change of direction. This allows air to be supplied in confined spaces.

[0091] To solve the aforementioned problem, the features of the eighth independent claim are provided alternatively or additionally according to the invention. In particular, it is thus proposed according to the invention that, in a sanitary insert according to one of the types described above, an airflow between the air inlet and the mixing stage describes a U-turn. It is advantageous that the inlet of an airflow into the mixing stage is located as far upstream as possible in the main flow direction. Thus, configurations can be achieved in which backflow or backflow of liquid from the mixing stage through the ventilation passage can be largely or completely prevented.

[0092] A U-turn can be characterized, for example, as a guidance of a fluid in which a projection of an incoming flow direction onto an outgoing flow direction is antiparallel to the outgoing flow direction.

[0093] In one embodiment of the invention, a downstream boundary edge of a ventilation window opening into the mixing stage can be designed to be no lower, preferably higher, than the outlet of a separation stage in a main flow direction. An advantage of this is that configurations can be achieved in which backflow through a ventilation passage or the aforementioned ventilation window is only possible when flows occur against the main flow direction. Since this is very rare, the described combination of features is a good way to avoid or at least reduce unwanted water leakage from the ventilation passage. A further advantage can be that ventilation can be positioned as close as possible to the outlet. This can improve air supply.

[0094] Alternatively or additionally, the ventilation passage leading into the mixing stage can be arranged, at least in a partial section, upstream of the outlets of the separation stage in a main flow direction. This allows a ventilation window to be positioned at or near the outlets of the separation stage (separation nozzles). This shortens the air path through the interior of the mixing stage to the outlets and therefore leads to a more efficient coupling of the ventilation passage, at least to the nearest separation nozzle. This reduces flow resistance and increases air intake.

[0095] Alternatively or additionally, the invention proposes the combination of features of the ninth independent claim to solve the aforementioned problem in a sanitary insert. According to the invention, it is thus proposed that in a sanitary insert of one of the types already described above, the separating stage closes the at least one air inlet to the mixing stage. An advantage of this is that, at least when preparations in the housing part are designed such that a ventilation passage encompassing the air duct can be formed by creating an air channel on a downstream side of the separating stage. Such ventilation passages can then be easily closed in certain variants by appropriately designing the separating stage. In this way, both ventilated and unventilated aerators can be easily manufactured.

[0096] Alternatively or additionally, the invention proposes the features of the tenth independent claim to solve the aforementioned problem in a sanitary insert. In particular, the invention proposes that, in a sanitary insert according to one of the types described above, a gap between the functional stage, for example the disassembly stage or the reduction stage, and the housing part is closed with a deformable sealing element. An advantage of this is that a one-piece design of the disassembly stage with the housing part is unnecessary, and that no stock 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 items.Another advantage, for example, is that manufacturing tolerances do not lead to undesirable leaks or functional losses. In this context, the invention recognizes that high operating pressures can prevail, particularly at the separation stage and / or the reduction stage, since these functional stages create significant flow resistances. A seal according to the invention is particularly advantageous for such functional stages.

[0097] In one embodiment of the invention, the sealing element can be formed or integrally molded onto a functional stage, for example, one of the aforementioned stages, in particular a disassembly stage and / or a reduction stage, for example, one of the aforementioned stages. This allows for easy assembly of the sanitary insert, as the sealing element can be captive and attached to the respective functional stage. Preferably, the sealing element is formed or integrally molded onto the disassembly stage in one piece. Manufacturing in a single production step is therefore possible. This further reduces assembly costs compared to the case where the sealing element is formed separately from the disassembly stage.

[0098] Alternatively or additionally, the invention proposes the combination of features of the eleventh independent claim to solve the aforementioned problem in a sanitary insert. According to the invention, in a sanitary insert of one of the types already described above, it is particularly proposed that a flow obstruction is connected to and downstream of the separation stage for each row of separation nozzles, and that the at least one flow obstruction is arranged in a downstream extension of the row. This makes it easily possible for several separation nozzles to preferably meet the same flow obstruction centrally. This can be advantageous for mixing in the mixing stage.

[0099] For example, the flow obstruction can be integrally connected to the disassembly stage. This allows for automatic alignment of the flow obstruction to the position of the disassembly nozzles, without the need for subsequent assembly steps to achieve this alignment.

[0100] For example, the flow obstruction can be positioned directly downstream of the separation stage. This allows the separation nozzles to directly impact the uppermost level of flow obstructions, resulting in optimal atomization or separation in the mixing stage. This ensures that the individual jets exiting the separation nozzle are optimally distributed within the mixing chamber.

[0101] In one embodiment of the invention, the flow obstruction can be integrally connected to the disassembly stage and / or suspended from the disassembly stage. This enables particularly simple manufacturing without a subsequent assembly step.

[0102] In one embodiment of the invention, the separating nozzles can each be designed as straight lines. This allows for the simple creation of a defined beam direction with which the individual jets from the separating nozzles can be directed towards the flow obstructions. In another embodiment of the invention, the beam direction of each separating nozzle can be directed towards its corresponding flow obstruction. This is advantageous because it allows the individual jets from each separating nozzle to strike at least one flow obstruction as centrally as possible, particularly when there are a small number of flow obstructions overall.

[0103] In one embodiment of the invention, the flow obstructions can be arranged on at least two levels. An advantage of this is that good mixing, similar to a cascade, can be achieved.

[0104] Preferably, the flow obstructions on different levels have mutually intersecting orientations or are aligned parallel to each other. The crossed arrangement has the advantage that particularly good mixing can be achieved, while the parallel, especially offset, orientations are easy to demold.

[0105] In one embodiment of the invention, the disassembly stage can be suspended from a housing part forming a discharge stage. This allows for a particularly simple attachment of the disassembly stage to the housing part, which can also easily withstand high pressure loads.

[0106] In one embodiment of the invention, the flow obstructions can be connected to the separation stage via an interface. An advantage of this is that the flow obstructions can be easily combined with different separation stages and vice versa. For example, this connection via the interface can be established using a support for the flow obstructions, in particular the support already mentioned.

[0107] In one embodiment of the invention, the interface can be configured as a snap-fit ​​connection. This allows for a particularly simple connection of the flow obstructions, especially one of them, for example the aforementioned supporting beam, to the disassembly stage.

[0108] In one embodiment of the invention, the interface can define an alignment of the flow obstructions relative to the separation stage with respect to rotations about a longitudinal axis. This allows for a simple alignment of the flow obstructions to a pattern or arrangement of separation nozzles without the need for subsequent checks or increased assembly effort. It is thus easily achieved that the separation nozzles and flow obstructions automatically align themselves or are precisely aligned with each other.

[0109] In one embodiment of the invention, the housing part can be designed to be open on the outflow side. This allows for a low overall height.

[0110] In one embodiment of the invention, the housing part can be designed to be closed off on the downstream side by a discharge structure. The housing part can thus be designed as a basket. It is particularly advantageous if an intermediate space, such as the one already mentioned, is formed upstream of the discharge structure. This space can be easily filled by placing insert grids or flat insert parts onto the discharge structure.

[0111] Alternatively or additionally, the invention proposes the combination of features of the twelfth independent claim to solve the aforementioned problem in a sanitary insert. According to the invention, in a sanitary insert of one of the types already described above, it is particularly proposed that a ventilation passage, for example the one already mentioned, opens into an interior space of the mixing stage via an axially oriented ventilation window. This allows air to be supplied along an alignment of separation nozzles. This makes it possible to position the ventilation window even closer to the nearest separation nozzle of the separation stage than would be possible with a ventilation window in a side wall of the mixing stage. Thus, the negative pressure generated at the separation nozzle can be used even more effectively for air intake.

[0112] In one embodiment of the invention, the separation stage can be designed as a separation plate with an arrangement of separation nozzles. This allows the typically flat underside of the separation stage to be used for the ventilation window and / or air duct as described. Since separation plates are also used at low operating pressures, the advantages of the invention are particularly beneficial in this context.

[0113] In one embodiment of the invention, the separation stage may be provided with separation nozzles having a round cross-section. It has been found that round separation nozzles tend to produce particularly low noise levels during operation, especially when the flow obstructions are rigidly aligned with a single position of the separation nozzles.

[0114] In one embodiment of the invention, the at least two fluid paths may be arranged at least partially within the area of ​​flow obstructions. It is particularly preferred if the sanitary insert has three fluid paths. The fluid paths are arranged in a region of the support where the flow obstructions are also located. They may be at the same level as the flow obstructions. This allows for a particularly advantageous fluidic exchange between the two half-spaces formed by the support.

[0115] In a further embodiment of the invention, the at least two fluid paths can induce a transverse flow that enables fluidic exchange between the sub-spaces in the region of the flow obstructions. It can also be provided that the fluidic exchange is enabled at the level of the flow obstructions. It is particularly advantageous if the fluid paths are independent of one another. The flow conditions in the sub-spaces can thus be balanced. In particular, three fluid paths can also be provided to connect the half-spaces. The induced transverse flow can lead to the return of a desired round cross-sectional shape to the jet.

[0116] In one embodiment of the invention, the pressure equalization recesses or openings may allow a transverse flow with respect to the main flow direction in the area of ​​the flow obstructions. It may also be provided that the transverse flow is allowed at the level of the flow obstructions. A transverse flow in the area and / or at the level of the flow obstructions is particularly advantageous for equalizing the flow conditions in the two sub-chambers of the mixing stage.

[0117] In one embodiment of the invention, the support can be designed as a surface. The support can also be designed in the form of a wall. Such a wall- and / or surface-like support is particularly suitable for arranging flow obstructions and for incorporating pressure equalization openings and / or pressure equalization recesses. The wall- and / or surface-like support can thereby divide the mixing stage into two compartments, which are separated by the pressure equalization openings and / or

[0118] Pressure equalization recesses may be connected.

[0119] In one embodiment of the invention, the housing part may have at least one air inlet. Such an air inlet may be required so that air can be drawn into the interior of the sanitary insert, thereby creating an aerated jet.

[0120] In one embodiment of the invention, a ventilation passage leading into the mixing stage may have an air inlet opening to the outside within the housing part. Such a ventilation passage allows the mixing stage to be ventilated from the outside through the housing. Thus, a continuous ventilation passage can be provided from an area outside the housing to the mixing stage.

[0121] In one embodiment of the invention, the at least one pressure equalization recess can be closed on one side by a housing part. A pressure equalization recess can enable pressure equalization at the edge of the support facing the housing. Such a pressure equalization recess is thus located on a wall that circumferentially delimits the mixing stage, the wall being formed by the housing part. Such a pressure equalization recess can be particularly suitable for providing pressure equalization between the compartments formed by the support.

[0122] In one embodiment of the invention, at least one gap may be formed between the support and the housing part in the area of ​​the flow obstructions, allowing transverse flow between the two sub-chambers. Such a gap may also be provided at the level of the flow obstructions. Pressure equalization between the two sub-chambers in the mixing stage can be achieved through such a gap. Such a gap in the area and / or at the level of the flow obstructions is particularly advantageous for the transverse flow between the sub-chambers and the resulting pressure equalization between them.

[0123] In one embodiment of the invention, a discharge stage may have a discharge structure, wherein the discharge stage is formed as part of the housing. Alternatively, the discharge structure may be integrally connected to the housing. A sanitary insert in which the discharge structure is connected to the housing, or in which the discharge structure is formed as part of the housing, can be manufactured and assembled particularly easily, which can lead to reduced manufacturing and / or assembly costs. A housing such as this can also be suitable for accommodating further elements of the sanitary insert, in particular the support with flow obstructions and / or a disassembly stage.

[0124] In a further embodiment of the invention, the housing part can be designed to circumferentially surround the carrier with flow obstructions. It is advantageous if the housing part is completely closed in the area and / or at the level of the flow obstructions. Such a housing part allows the carrier with the flow obstructions to be accommodated in the mixing stage. In a further embodiment of the invention, a downstream boundary edge of a ventilation window opening into the mixing stage can be formed above the outlet of a separation nozzle in a main flow direction. An undesired escape of water through the ventilation window can be largely prevented by a ventilation window arranged above a separation nozzle.

[0125] Alternatively or additionally, the invention proposes, to solve the aforementioned problem in a series of sanitary inserts, the features of the independent claim directed to a series. Thus, according to the invention, to solve the aforementioned problem in a series of the type described above, it is proposed that at least two variants are provided, 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 have a matching housing part in which a disassembly stage is held and in which an outwardly open air inlet is formed, wherein in a first variant the disassembly stage with the air inlet forms at least one ventilation passage, in particular the ventilation passage already mentioned, and in a second variant the disassembly stage closes the air inlet.An advantage of this is that ventilated and unventilated variants of sanitary inserts can be easily produced with a minimal number of parts, for example by means of appropriate slides above the injection mold during the formation of the disassembly stage.

[0126] It is particularly advantageous if the first variant and / or the second variant is according to the invention, in particular as described and / or claimed herein.

[0127] In general, it can be said that by using a downstream side of a separation stage to form a ventilation passage, for example the one already mentioned, of a sanitary component, in particular as described above or claimed below, wherein at least one, in particular non-planar, structure is formed in the separation stage which contributes to the formation of the ventilation passage, it is possible, on the one hand, to place a ventilation window as the location where the ventilation passage opens into an interior of the mixing stage as close as possible to the separation nozzles of the separation stage, and on the other hand, to arrange a downstream boundary edge of the ventilation window as close as possible to the separation stage in one of the main flow directions, for example the one already mentioned, without loss of an opening cross-section of the ventilation window.This makes it possible to effectively reduce or eliminate overflow or splashing from the ventilation window to the outside.

[0128] In summary, the advantages of the invention include, among others, the ability to improve jet shaping, jet comfort, and the jet pattern. This is particularly relevant for round jet shapes with ventilation, as addressed by the present invention. Furthermore, an advantage lies in the improved air mixing, which can have a particularly positive effect on jet shaping at low flow rates.

[0129] This is made possible by the following inventions:

[0130] 1. Precise alignment of the impact structures of the mixing stage with the bores of the separation plate: All versions share the feature that the lamellae allow for very precise orientation to the hole pattern of the separation plate and also facilitate assembly. In the one-piece solution, this is achieved through injection molding, or in the two-piece solution through a non-circular snap-fit ​​contour. The precise positioning of inserts (grids), previously common in the prior art, is no longer necessary. This can simplify assembly and reduce tolerances that impair blast quality.

[0131] 2. Increased air mixing through air channels embedded in a separating plate, enabling enhanced air intake by providing an improved connection between the outside environment and the point of greatest negative pressure (the separating plate's outlet nozzles). This is particularly advantageous when previously known arrangements fail to draw sufficient air into the mixing chamber. The invention allows for minimizing or even eliminating the distance between the ventilation windows and the separating stage to draw in more air. Since the velocity of the individual jets is highest at the separating stage outlets, and the negative pressure is highest in the area of ​​the separating stages (at their underside), a ventilation window at this height acts like a "targeted air guide" or "targeted air channel." A distance of only 3 mm below the separating stage can already result in a significant pressure drop.The aforementioned advantage is particularly noticeable in variants that have only low flow rates (water-saving aerators).

[0132] 3. Implementation of splash protection via the position / high-positioned ventilation inlets: It has been found that the escape of droplet spray from previously known ventilation windows can significantly affect the jet quality. Furthermore, when fittings are tilted (almost all fittings have a flow angle other than 90°), water can escape from the (lowest) ventilation windows due to gravity. This, too, can significantly affect the jet quality. By positioning the ventilation windows and designing the air channels on the downstream side of the disassembly stage, this effect can be considerably reduced or even completely eliminated. The present invention thus represents a significant product improvement.

[0133] The invention will now be described in more detail by means of exemplary embodiments, but is not limited to these embodiments. 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 embodiments.

[0134] It shows

[0135] Fig. 1 shows a first variant of a sanitary insertion unit in its operating position in an axial section.

[0136] Fig. 2 shows a second variant of a sanitary insertion unit in its operating position in an axial section.

[0137] Fig. 3 shows the sanitary insertion unit according to Fig. 2 in an axial section rotated relative to Fig. 2.

[0138] Fig. 4 shows the sanitary insertion unit according to Fig. 2 in an axial section rotated relative to Fig. 2 and Fig. 3 in a three-dimensional oblique view.

[0139] Fig. 5 shows the isolated disassembly stage from Fig. 2 in a three-dimensional oblique view on the inflow side,

[0140] Fig. 6 shows the insulated housing part from Figs. 1 and 2 in a three-dimensional axial section.

[0141] Fig. 7 shows the isolated disassembly stage from Fig. 2 in a three-dimensional oblique view on the outflow side,

[0142] Fig. 8 shows the isolated disassembly stage from Fig. 1 in a three-dimensional oblique view on the outflow side,

[0143] Fig. 9 shows a detail view from Fig. 1.

[0144] Fig. 10 shows another three-dimensional sectional view of the embodiment according to Fig. 1,

[0145] Fig. 11 shows a three-dimensional oblique view of an outflow side of an insulated disassembly stage of a further embodiment according to the invention, Fig. 12 shows a three-dimensional oblique view of an outflow side of an insulated disassembly stage of a further embodiment according to the invention without a support.

[0146] Fig. 13 shows a three-dimensional oblique view of a support suitable for the disassembly stage,

[0147] Fig. 14 shows an axial section through the composite combination of disassembly stage according to Fig. 12 with support according to Fig. 13,

[0148] Fig. 15 shows a three-dimensional oblique view of an outflow side of an isolated disassembly stage of a further embodiment according to the invention.

[0149] Fig. 16 shows an axial section through the disassembly stage according to Fig. 15,

[0150] Fig. 17 shows a further axial section through the disassembly stage according to Fig. 15, rotated by 90° compared to Fig. 16.

[0151] Fig. 18 shows a further embodiment of a sanitary insert of the hidden type according to the invention in a three-dimensional sectional view,

[0152] Fig. 19 shows a further embodiment of the invention in a three-dimensional sectional view,

[0153] Fig. 20 shows a further disassembly stage for use in a sanitary insertion unit according to the invention,

[0154] Fig. 21 shows another sanitary insertion unit according to the invention with a disassembly stage according to Fig. 20,

[0155] Fig. 22 shows an oblique view of the interior of a housing part – the so-called basket – of the insertion unit according to Fig. 21, Fig. 23 shows a view of an inlet side of a further disassembly stage and

[0156] Fig. 24 shows a view of an outflow side of the disassembly stage on Fig. 23.

[0157] The figures are described collectively below, where expedient. Structurally and / or functionally similar or identical components and functional units are designated with matching reference symbols and are not described separately. The descriptions therefore apply accordingly to all figures unless otherwise stated.

[0158] Figure 1 shows a sanitary insert designated as a whole by numeral 1. The sanitary insert 1 is designed by way of example as an aerator, which is attached by a nozzle 2 to an outlet piece 3, for example on an outlet pipe, of a sanitary fitting (not shown).

[0159] The mouthpiece 2 has a thread 4 in a manner known per se, which is screwed to the outlet piece 3 with a corresponding counter-thread 5.

[0160] 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 mating thread 5.

[0161] In further embodiments, the thread 4 is formed directly on the sanitary insert 1, so that the sanitary insert 1 can be screwed on directly. A mouthpiece is then not required.

[0162] The sanitary insert 1 comprises, in a manner known per se, a separation stage 6 and, fluidically downstream of the separation stage 6, a mixing stage 7. The mixing stage 7 is formed in a housing part 8, to which the separation stage 6 is suspended.

[0163] Figure 9 shows a detailed enlargement from Figure 1.

[0164] A ventilation passage 9 leads from the outside into an interior space 10 of mixing stage 7 .

[0165] 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 joined together. The connection is such that a dividing line (not shown) runs along the ventilation passage 9 between the two parts 11 and 12.

[0166] The ventilation passage 9 guides air along an airflow direction 13 through an air inlet 14 into the interior 10 of the mixing stage 7. The two parts 11, 12 are thus joined along a separation that runs along the airflow direction 13. For this purpose, an air channel 16 is formed on a downstream side 15 of the separation stage 6, which faces the mixing stage 7. This air channel is open when the separation stage 6 is separated. In Figures 8 and 9, it is clearly visible that the air channel 16 forms a concave surface, which is created by a material recess, indentation, molding, recess, or the like. The separation line is horizontal, i.e., perpendicular to the vertically oriented joining direction. The dividing line (as the intersection of the separation surface with the ventilation passage) has further vertically running sections before and after this section, which are not of interest here.

[0167] The portion of the ventilation passage 9 formed in the first part 11, i.e., the housing part 8, is bounded by the first part 11 along a closed circumference. In part 12, i.e., the separation stage 6, the ventilation passage 9 is bounded only as an air channel 16 open on one side, which is closed only by the first part 11. Figure 8 shows the separation stage 6 in a view of side 15, which faces the mixing stage 7. It can be seen that a structure 17 consisting of a plurality of air channels 16 is formed on side 15.

[0168] 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. Each air channel 16 is bounded on both sides by contact surfaces 66, which interact sealingly with the counter-structure 18, a ring-shaped circumferential counter-contact surface.

[0169] The enlarged view in Figure 9 shows 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.

[0170] By comparing the illustrations according to Figure 6 and Figure 8, it can be seen that the structure 17 and the (counter-) structure 18 are open at the top and bottom respectively and are therefore free of undercuts.

[0171] The housing part 8 has a discharge stage 19 at its downstream end, which has a discharge structure at the water outlet in the manner of a flow straightener.

[0172] The housing part 8 with the outlet structure 20 forms the so-called basket .

[0173] In another embodiment, the outlet structure on the housing part 8 is missing, and the arrangement 41 of flow obstructions 32 is open and unobstructed at the bottom. The ventilation passage 9 has a length that is many times longer than the wall thickness 21 of the housing part 8 (measured near the boundary edge 23).

[0174] Figure 9 clearly shows that the airflow direction 13 describes a U-turn 22. The entry of this airflow direction 13 into the interior 10 forms a ventilation window 24, which is axially aligned and opens at the level of the underside 15 of the disassembly stage 6. The ventilation window 24 is bounded downwards (downstream) by a limiting edge 23 formed on the housing part 8.

[0175] The ventilation window 24 is thus located at or slightly above the level, measured in a main flow direction 25, of the outlets 26 of the separation nozzles 27 in the separation stage 6. The strongest negative pressure prevails on the underside 15 of the separation stage. The ventilation window or ventilation passage is optimally positioned there, as this allows a large amount of air to be drawn in and directed into the interior 10 of the mixing stage 7.

[0176] Since there are several air ducts 16, several ventilation passages 9 are defined, which run together in sections.

[0177] Figures 2-3 and 7 show another embodiment according to the invention.

[0178] The embodiment shown in Figures 2-3 and 7 differs from the embodiment shown in Figure 1 in that the underside 15 of the disassembly stage 6, as can be seen in Figure 7, is essentially flat. A planar or flat structure 17 is thus formed, which results in the air inlet 14 in the housing part 8 being closed. In other words, the contact surface 66 extends uninterrupted along a complete circumference and thus seals against the counter-structure 18. The fluidic connection via the ventilation passage 9 present in Figure 1 is therefore interrupted in the embodiment shown in Figure 2.

[0179] Figure 2 is therefore used to generate an unventilated, i.e., for example, laminar jet.

[0180] Returning to the exemplary embodiment according to Figure 1, it can be seen in Figure 4 that the disassembly stage 6 encloses a gap 28 with the housing part 8, which is closed against the housing part 8 by a lip-shaped sealing element 29.

[0181] This sealing element 29 is deformable and ensures a tight seal above the disassembly stage 6. The applied working pressure further increases this tightness, as the sealing element 29 is pressed against the housing part 8 by the working pressure.

[0182] A reducing stage 30, which is formed upstream of the disassembly stage 6, is clipped into the housing part 8 and thus holds the disassembly stage 6 in a suspended position.

[0183] A pre-filter 31 is clipped onto the reduction stage 30, which can be designed, for example, as a throttle or as a quantity regulator.

[0184] The sealing element 29 is formed in one piece on the disassembly stage 6 and is molded onto it.

[0185] In another embodiment, the sealing element 29 is additionally or alternatively formed on the reduction stage 30.

[0186] The illustrations in Figures 4, 5, 6, 7, and 8 show that the embodiments described so far each represent a sanitary insert 1 with a round base shape. Other embodiments also feature different base shapes, in particular cuboid base shapes.

[0187] The sanitary insert parts 1 can therefore be easily connected to a sanitary fitting by means of a screw connection.

[0188] In the interior 10 of the mixing stage 7, an arrangement of flow obstructions 32 is provided in each of the illustrated embodiments. Each of the flow obstructions 32 serves to further break down individual jets exiting the dispersing nozzles 27 of the dispersing stage 6 and to deflect them into the interior 10, so that good mixing of the individual jets – additionally with air in the case of a ventilated sanitary insert 1 – is achieved in the mixing stage 7.

[0189] The flow obstructions 32 are each formed on a support 33 and project laterally from it, i.e. transversely to the main flow direction 25 into the interior 10 .

[0190] The support 33 is designed in such a way that it structurally divides the interior space 10 into two sub-spaces 34, 35.

[0191] The support 33 is suspended on the underside 15 of the dismantling stage 6.

[0192] In the exemplary embodiments according to Figures 1 to 11, the carrier 33 is formed in one piece on the disassembly stage 6.

[0193] In the embodiment according to Figures 12 to 14, the support 33 with the flow obstructions 32 is formed separately from the disassembly stage 6 and is connected to this form.

[0194] This spatial subdivision creates the risk that the jet cross-section will be elongated along its longitudinal extent on the support 33, so that the emerging jet no longer has a circular cross-section. To prevent this, pressure equalization recesses 36 are incorporated into the support 33, which is essentially wall-like. The pressure equalization recesses 36 can be, for example, open (in the circumferential direction around the recess) or closed. In the latter case, they form pressure equalization openings 37.

[0195] Through a multitude of such pressure equalization openings 37, fluid paths 38, 39, 40 are formed, which enable a fluidic exchange between the subspaces 34 and 35.

[0196] This equalization, which induces a cross-flow, leads to a return to the round cross-sectional shape of the emerging water jet.

[0197] Fluid paths 38, 39 and 40 are independent of each other and can therefore achieve a good balance between the flow conditions in subspace 34 and subspace 35.

[0198] The pressure equalization recesses 36 have a total area of ​​at least 40% of the area of ​​a longitudinal section of the mixing stage.

[0199] Thus, good cross-flow along fluid paths 38, 39, 40 is achievable. Conversely, this means that the support 33 covers less than 70% or less than 60% of the cross-section of mixing stage 7.

[0200] The flow obstructions 32 form an arrangement 41 which, in the illustrated embodiments, projects laterally or transversely to the main flow direction 25 over the support 33 in two dimensions (horizontal or oriented perpendicular to the main flow direction 25).

[0201] Figures 15 to 17 show a further embodiment of the invention. For the sake of simplicity, only the disassembly stage 6 is shown here, which can be inserted into the housing part 8 according to Figure 1 and supplemented with the reduction stage 30.

[0202] The embodiment shown in Figures 15 to 17 differs from the preceding embodiments in that a support 42 is formed downstream of the support 33 below the flow obstructions 32, with which the flow obstructions 32 are supported at the outlet stage 19 and more precisely at the outlet structure 20.

[0203] The support 42 is circular, in particular ring-shaped, and arranged laterally offset from a center of the support 33.

[0204] Between the arrangement of the flow obstructions 32 and the outlet structure 19, an intermediate space 43 is formed, which further promotes fluid exchange between the subspaces 34 and 35 and allows the insertion of additional insert parts.

[0205] Figure 5 shows that the separating nozzles 27 are arranged in an arrangement 44 of rows 45. The rows 45 are formed along a longitudinal direction of the flow obstructions 32. It can be seen that the flow obstructions 32 of an upper level 46 are arranged in a downstream extension of the separating nozzles 27 and thus of the rows 45. The individual jets therefore emerge from the separating nozzles 27 directly and preferably centrally onto the flow obstructions 32.

[0206] The one-piece forming of the support 33 with the flow obstructions 32 on the disassembly stage 6 automatically achieves the correct alignment of the flow obstructions 32 on the rows 45 .

[0207] The disassembly nozzles 27 are each designed in a straight line and aim at an associated flow obstruction 32 .

[0208] In the embodiment shown in Figures 12 to 14, the carrier 33 is not formed integrally with the disassembly stage 6, but is connected to a snap-fit ​​connection 49 via an interface 48.

[0209] The interface 48 is non-circular and causes the disassembler stage 6 and the support 33 to be oriented in a defined manner with respect to rotations about a longitudinal axis that runs parallel to the main flow direction 25 with the flow obstructions 32.

[0210] A gap 55 can be seen between the flow obstructions 32 and the housing part, particularly in Figures 2 and 10. This gap 5 allows cross-flow and fluidic exchange between the sub-chambers 34 and 35.

[0211] Figures 7 and 8 show that in the exemplary embodiments according to Figures 1 and 2, the two levels 46 and 47 of flow obstructions 32 are parallel to each other, but laterally offset.

[0212] In the embodiment shown in Figure 11, the flow obstructions of the two floors 46, 47 are arranged in a crossed arrangement.

[0213] The exemplary embodiments according to Figures 1 and 2 represent variants of a series of sanitary insert parts 1, wherein both variants have identical housing parts 8, reduction stages 30 and pre-screens 31, while the disassembly stages 6 on the underside 15 differ with respect to the structure 17.

[0214] In this way, one variant is formed according to Figure 1, in which an air inlet 14 is connected to the interior 10 via the ventilation passage 9 to produce an aerated water jet. The second variant according to Figure 2 has a closed ventilation passage 9 and thus a closed air inlet 14, so that an unventilated water jet is produced.

[0215] The figures show that the ventilation passage 9 is bounded by a circumferential annular space 50, which is part of the interior 10 of the mixing stage 7.

[0216] Figure 12 shows the deflecting surface 51, which forces at least one deflection of the airflow in the air duct 16. Figure 12 also shows that each ventilation passage 9 in the second part 12 is circumferentially bounded by two boundaries 52.

[0217] Figure 6 also shows these circumferentially acting limits 52 for the first part 11. Figure 18 shows a sanitary insert 1 in which the thread 4 is integrally formed on the housing part 8. Thus, this insert 1 can be completely screwed into the fitting without a nozzle 2, resulting in a hidden type.

[0218] Fig. 19 shows a sanitary insert in which the limiting edge 23 is arranged above the outlets 26. This is even more advantageous for preventing

[0219] Overflow events occur at ventilation window 24 or through ventilation passage 9. These overflow events can be caused, for example, by backflowing or splashing water within mixing stage 7.

[0220] The figures show that the housing part 8, as the first part 11, always forms a section of the ventilation passage 9, which is bounded by a double wall 53 of the housing part 8. In a further embodiment, the air channels 16 can be interconnected, for example along the dashed line shown in Figure 12. This allows air to be easily directed to centrally located disassembly nozzles 27. Networks of air channels 16 can also be formed in the disassembly stage 6 in this way.

[0221] The disassembly stage 6 lies flat on the boundary edge 23, with the air channels 16 deviating from this contact plane to allow air to pass through. According to the invention, in the sanitary insert 1, a disassembly stage 6 is thus structured in such a way 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 flow obstructions 32 in the mixing stage 7 are arranged 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), wherein pressure equalization recesses 36 on the support 33 ensure that a cross-flow perpendicular to the main flow direction 25 of the water flow enables equalization between the sub-chambers 34, 35.

[0222] Figures 20 and 21 show a further embodiment of the invention. Functionally and / or structurally similar or identical components and functional units are shown and / or labelled in the same way. The preceding explanations therefore apply accordingly.

[0223] Each of the air channels 16 is bounded and enclosed by an axially oriented and circumferentially formed sealing surface 55. The sealing surface 55 is formed on the side of the separation stage 6 facing the mixing stage 7.

[0224] A contact surface 65 facing the disassembly stage 6 is formed on the housing part 8.

[0225] The contact surface 65 interacts with the sealing surface 55 in a sealing manner. Fig. 22 shows the position of the annular contact surface 65 on the housing part 8.

[0226] Thus, a gap that exists between the reduction stage 30 and the housing 8, and / or a leakage path that leads to the outside between the disassembly stage 6 and the reduction stage 30, is sealed.

[0227] The sealing surface 55 is arranged without undercuts against a channel base of each of the air channels 16.

[0228] Each air channel 16 is aligned longitudinally, in particular parallel, to the flow obstructions 32. At a free end 56 of the support 33, a projection 57 is formed, which extends downwards, i.e. away from the disassembly stage 6, beyond an end extension 58 of the arrangement 41 of flow obstructions 32.

[0229] The maximum extent 59 of the support 33, measured from a downstream side 60 of the disassembly stage 6, is at least 0.5 mm, here even 0.6 mm, greater than a maximum extent 58 of the arrangement 41 of flow obstructions 32.

[0230] Here, both dimensions are measured from the downstream side 60 of the disassembly stage 6 to the point of their respective furthest extension.

[0231] The end projection 57 of the support 33 maintains a distance 63 of at least 0.5 mm from its adjacent flow obstructions 64 of the arrangement 41 in a region 61 around its base 62. Figures 23 and 24 show a further separation stage 6, which can be used in each of the illustrated embodiments. The separation stage 6 according to Figure 23 has separation nozzles 27 with a round cross-section. The separation nozzles 27 are arranged in an arrangement 44 of several rows 45, with each row 45 being precisely aligned with a flow obstruction 32, for example by a one-piece connection (see, e.g., Figure 5) or by a positive-locking connection (see, e.g., Figure 14) of the support 33 with the separation stage 6. Furthermore, the explanations for the other disassembly stages shown apply accordingly.

[0232] The figures show that the flow obstructions 32 are forcibly aligned with the positions of the disassembly nozzles 27 of the disassembly stage 6 for water passing through by the connection of the support 33 with the disassembly stage 6.

[0233] Thus, a reproducible and automatic alignment of the disassembly nozzles 27, from which the individual jets emerge along an outflow direction of the disassembly stage 6, is achieved relative to an orientation of the flow obstacles 32.

[0234] The forced alignment eliminates the degree of freedom of rotation about a longitudinal axis, which normally occurs when inserts are used as flow obstructions.

[0235] The disassembly stage 6 is designed as a disassembly plate. This results in a planar arrangement of the disassembly nozzles 27 transverse to the longitudinal axis.

[0236] In further embodiments, the disassembly stage 6 is designed as a diffuser. Here too, a one-piece or positive-locking, rotationally fixed connection with a support 33 can achieve the described advantages.

[0237] It is evident from the examples that the arrangement of the atomizing nozzles 27 is congruent with the shape of the flow obstructions 32, cf. for example Fig. 5. Thus, the atomizing nozzles 27 can be easily covered by downstream flow obstructions 32. By aligning the atomizing nozzles 27 with the flow obstructions 32 even before assembly, the outflow directions of the individual jets from the atomizing nozzles 27 are easily predetermined, striking the respective downstream flow obstruction 32 centrally. This results in optimal atomization and mixing with the air.

[0238] Each separation nozzle 27 of the separation stage 6 is equipped with a flow obstruction 32 that is oriented such that the water passing through each separation nozzle 27 strikes the flow obstruction 32 centrally. Deep (direct) penetration of the emerging individual jets into the mixing chamber of the mixing stage 7 is thus avoided.

[0239] It is particularly advantageous if the flow obstruction 32 is arranged in the uppermost level 46 of a stacked arrangement of several levels 46, 47 of flow obstructions 32. Thus, the flow obstruction 32 can be arranged particularly close behind the severing nozzle 27 or at the severing stage 6.

[0240] The flow obstructions 32 are aligned parallel to each other within a level 46, 47. The dispersing nozzles 27 are arranged in corresponding rows that match or are aligned with the flow obstructions.

[0241] For each flow obstruction 32, at least one separation nozzle 27 of separation stage 6 exists on an uppermost level 46, the water passing through which impinges centrally on the flow obstruction 32. In fact, for each flow obstruction 32, there are a plurality of such separation nozzles 27.

[0242] In Figures 1 to 11 and 15 to 21, the support 33 is integrally formed on the downstream side of the disassembly stage 6.

[0243] In Figures 12 to 14, the carrier 33 is connected to the disassembly stage 6 via a permanent connection, for example a snap-fit ​​connection 49.

[0244] It is evident that, in the exemplary embodiments, the housing part 8 laterally encloses the mixing stage 4 and, in particular, the flow obstructions 32, i.e., for example, transversely to the main flow direction, and separates them from 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 itself. The connection must have a symmetry-breaking (here, for example, a square) interface 48, through which a forced alignment is defined. A positively interlocking forced alignment is thus realized.

[0245] Reference list for sanitary inserts

[0246] mouthpiece

[0247] outlet piece

[0248] thread

[0249] Counter thread

[0250] Disassembly stage

[0251] Mixing stage

[0252] Housing part

[0253] ventilation corridor

[0254] interior

[0255] (first) part

[0256] (second) part

[0257] Airflow direction

[0258] air intake

[0259] (Sub-) page

[0260] air channel

[0261] structure

[0262] (Counter-) Structure

[0263] Exit stage e

[0264] Outflow structure

[0265] wall thickness

[0266] U-turn

[0267] Boundary edge

[0268] ventilation tens ter

[0269] Main flow direction

[0270] Exit

[0271] Dismantle nozzle

[0272] Gap

[0273] Sealing element

[0274] Reduction stage

[0275] front sieve

[0276] Flow obstruction

[0277] carrier

[0278] Sub-room 35 Sub-room

[0279] 36 Pressure equalization recess

[0280] 37 Pressure equalization opening

[0281] 38 (first) fluid path

[0282] 39 (second) fluid path

[0283] 40 (third) fluid path

[0284] 41 Arrangement of flow obstructions

[0285] 42 Support

[0286] 43 spaces

[0287] 44 Arrangement of rows

[0288] 45 row

[0289] 46 (first) floor

[0290] 47 (second) floor

[0291] 48 interface

[0292] 49 Rest stop

[0293] 50 ring space

[0294] 51 surface

[0295] 52 Limit

[0296] 53 Double wall

[0297] 55 sealing surface

[0298] 56 free end of 33

[0299] 57 Overhang

[0300] 58 (end-sided) extension

[0301] 59 maximum extension

[0302] 60 downstream side

[0303] 61 area

[0304] 62 feet

[0305] 63 distance

[0306] 64 adjacent flow obstructions

[0307] 65 mm contact area

[0308] 66 contact surface

Claims

Claims 1. Sanitary insert (1), in particular aerator, with a separating stage (6) and with flow obstructions (32) arranged downstream of the separating 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 separating stage (6), characterized in that the flow obstructions (32) are forcibly aligned to positions of separating nozzles (27) of the separating stage (6) for water passing through by means of the connection of the support (33) with the separating stage (6).

2. Sanitary insert (1) according to the preceding claim, characterized in that a flow obstruction (32) is forcibly aligned to each separation nozzle (27) of the separation stage (6), in particular in a top floor (46), such that the water passing through the separation nozzle (27) preferably hits the flow obstruction (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 separation stage (6).

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

5. Sanitary insert (1) according to one of the preceding claims, characterized in that each Flow obstruction (32) in an uppermost floor (46) at least one separation nozzle (27) of the separation stage (6) exists, the water passing through which preferably hits the flow obstruction (32) centrally.

6. Sanitary insert (1) according to one of the preceding Claims, characterized in that the carrier (33) is preferably integrally formed onto the disassembly stage (6). Sanitary insert (1) according to one of the preceding claims, characterized in that support (33) is connected via a connection which defines the forced alignment, in particular wherein the connection is detachable or non-detachable. Sanitary insert (1), in particular with a round basic shape and / or according to one of the preceding claims, with a separating stage (6) and a mixing stage (7) formed downstream of the separating stage (6), wherein the mixing stage (7) has an arrangement of flow obstructions (32) lying transverse to a main flow direction (25), wherein the flow obstructions (32) project 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 support (33) has at least one pressure equalization recess (36) which fluidically connects the at least two sub-spaces (34) , (35).

9. Sanitary insert (1) according to the preceding claim, characterized in that the pressure equalization recess (36) is designed as at least one pressure equalization opening (37) and / or that the pressure equalization recess (36) has at least two, preferably at least three, Fluid paths (38) , (39) , (40) between the subspaces (34) , (35) are defined, in particular wherein the pressure equalization recess (36) is designed as several pressure equalization openings (37) which are not related to each other.

10. Sanitary insert (1) according to one of the preceding claims, characterized in that the area of ​​the pressure equalization recess (36) is at least 10% or at least 30% or at least 40% of the area of ​​a longitudinal section of the mixing stage (7), in particular the section passing through the support (33) or a support arranged in the mixing stage (7) for the flow obstructions (32), and / or that the at least one pressure equalization recess (36) allows a transverse flow with respect to a main flow direction (25), in particular wherein the transverse flow has a balancing effect between the sub-spaces and / or whereby a more uniform cross-sectional pattern of the emerging water jet can result.

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 obstructions (32) are arranged, characterized in that in at least one longitudinal section passing through the support (33) for the flow obstructions (32) arranged in the mixing stage (7), 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 fluidically downstream of a separation stage (6) has at least one flow obstruction (32), wherein the at least one flow obstruction (32) is arranged on a support (33), in particular integrally formed, characterized in that the at least one flow obstruction (32) is preferably supported by a support (42) offset laterally to a center of the support (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 fluidically downstream of a separation stage (6) has at least one flow obstruction (32) and the flow obstructions (32) are aligned parallel to each other, characterized in that the flow obstructions (32) form an arrangement (41) which projects laterally in two dimensions beyond the support (33).

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 fluidically downstream of a separation stage (6) has at least one flow obstruction (32) and is characterized in that an intermediate space (43) fluidically bridging the support (33) is formed between the flow obstructions (32) and a discharge stage (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 disassembly stage (6) which is held in a housing part (8) forming a mixing stage (7), characterized in that a Mixing stage (7) leading ventilation passage (9) is formed by at least two connectable parts (11, 12), in particular wherein one of the two parts (11, 12) is a housing part (6) and / or one of the two parts (11, 12), in particular a second of the two parts (11, 12), forms a stage, for example the separation stage or the reduction stage or the mixing stage or the discharge stage.

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 passage (9) or transversely to the ventilation passage (9) and / or that the ventilation passage (9) opens to the outside 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 that at least one part (11, 12) of the two parts (11, 12) one around the The ventilation passage (9) is defined as having a circumferential boundary and / or that the ventilation passage (9) is limited 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 airflow and / or that each of the two parts (11, 12) Ventilation passage (9) limited 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 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, comprising a disassembly 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 channel (16) is formed, in particular molded and / or formed as a recess, on a side of the disassembly stage (6) facing the mixing stage (7), which in the operating position connects the at least one air inlet (14) with the mixing stage (7).

21. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least one air channel (16) is bounded, 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 that the housing part (8) a bearing surface (65) facing the disassembly stage (6) is formed, in particular such that the bearing surface (65) acts in a sealing manner with the sealing surface (55) formed on the side of the disassembly stage (6) facing the side of the mixing stage (7).

23. Sanitary insert (1) according to one of the preceding claims, characterized in that the 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 channel (16) extends longitudinally, in particular parallel, to the at least is aligned with a flow obstruction (32).

25. Sanitary insert (1) according to one of the preceding claims, characterized in that a projection (57) is formed at a free end (56) of the carrier (33) in relation to an end extension (58) of the or an arrangement (41) of flow obstructions (32).

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

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

28. Sanitary insert (1) according to one of the preceding claims, characterized in that in both parts (11, 12) the respective structures (17) , in particular wherein the structures (17) each partially or section by section form the ventilation passage (9), 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 a discharge stage (19) and / or that one of the two parts forms a separation stage (6).

30. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation passage (9) or a ventilation passage (9) comprising the air duct (16) has a length that is greater than a wall thickness (21) of one of the two parts (11, 12) or of the housing part (8) or that 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 (1), in particular according to the preamble of a preceding claim or according to one of the preceding claims, comprising a housing part (8) forming a mixing stage (7) preferably fluidically downstream of a disassembly stage (6), wherein an air inlet (14) on the housing part (8) is fluidically connected to the mixing stage (7), characterized in that an airflow 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 that a downstream limiting edge (23) of a ventilation window (24) opening into the mixing stage (7) is not deeper, preferably higher, than an outlet (26) of a separation nozzle (27) in a main flow direction (25) and / or that at least the ventilation passage (9) opening into the mixing stage (7) is at least in a partial area upstream of outlets in a main flow direction (25). (24) is arranged in the disassembly 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 disassembly 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 disassembly stage (7) closes the 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 a disassembly stage (6) or a reduction stage (30), which is arranged, in particular suspended, in a housing part (8) forming a mixing stage (7), characterized in that a gap dimension (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) on one or the functional stage, in particular one or the disassembly stage (6) and / or one or the reduction stage (30), preferably formed or molded 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 separation stage (6) has an arrangement of rows (44) of at least two separation nozzles (27) each, characterized in that a flow obstruction (32) is connected to the separation stage (6) for each row (45) and is preferably located directly downstream of the separation stage (6), and that the flow obstruction (32) is located in a downstream The extension of the row (45) is arranged.

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

38. Sanitary insert (1) according to one of the preceding claims, characterized in that the flow obstructions are arranged in at least two levels (46), (47), in particular with mutually intersecting orientations or with mutually parallel orientations between the levels (46), (47), and / or that the The disassembly stage (6) is suspended on a housing part (8) forming a discharge stage (19).

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

40. Sanitary insert (1) according to one of the preceding claims, characterized in that the housing part (8) is open on the outflow 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 separation 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 oriented ventilation window (24), in particular so that an air supply along an orientation of separation nozzles (27) is possible.

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

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

44. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least two, preferably three, fluid paths (38) , (39) , (40) , are arranged at least partially in the area and / or at the level of the flow obstructions (32).

45. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least two, preferably three fluid paths (38), (39), (40) induce a transverse flow which enables a fluidic exchange between the subspaces (34) and (35), in particular wherein the fluid paths (38), (39), (40) are independent of each other and / or the Flow conditions in sub-areas (34) and (35) compensate.

46. ​​Sanitary insert (1) according to one of the preceding claims, characterized in that the pressure equalization recesses (36) or pressure equalization openings (37) allow a transverse flow with respect to the main flow direction (25) in the area and / or at the level of the flow obstructions.

47. Sanitary insert (1) according to one of the preceding claims, characterized in that the pressure equalization recesses (36) or pressure equalization openings (37) are arranged, at least partially, in the area and / or at the level of the flow obstructions (32).

48. Sanitary insert (1) according to one of the preceding Claims, characterized in that the support (33) is designed as a surface and / or wall.

49. Sanitary insert (1) according to one of the preceding claims, characterized in that the housing part (8) has at least one air inlet (14).

50. Sanitary insert (1) according to one of the preceding Claims characterized in that an element is incorporated into the Mixing stage (7) leading ventilation passage (9) in which Housing part (8) has an outwardly opening air inlet (14).

51. Sanitary insert (1) according to one of the preceding claims, characterized in that the at least one pressure equalization recess (36) is designed to be open or closed in the circumferential direction around the recess.

52. Sanitary insert (1) according to one of the preceding Claims, characterized in that the at least one pressure equalization recess (36) is closed on one side by a housing part (8).

53. Sanitary insert (1) according to one of the preceding claims, characterized in that between the support (15) and the housing part (8) in the area and / or at the level of the flow obstructions (32) at least a gap (55) is formed which allows a transverse flow between the two sub-spaces (34) and (35).

54. Sanitary insert (1) according to one of the preceding claims, characterized in that a discharge step (19) has a discharge structure (20), wherein the discharge stage (19) is formed as part of the housing part (8) and / or is integrally connected to it.

55. Sanitary insert (1) according to one of the preceding claims, characterized in that the housing part (8) surrounds the support (15) with flow obstructions (32) in the circumferential direction, in particular wherein the housing part (8) is completely closed in the area and / or at the level of the flow obstructions (32).

56. Sanitary insert (1) according to one of the preceding claims, characterized in that a, in particular the, housing part (8) surrounds the mixing stage (4) and in particular the flow obstructions (32) laterally, in particular transversely to the main flow direction, and delimits it to the outside, wherein the housing part (8) spatially separates an air intake chamber which has a, in particular the, Air inlet (14) to the mixing stage (4) leads from the mixing stage (4).

57. Sanitary insert (1) according to one of the preceding Claims, characterized in that a downstream limiting edge (23) of a ventilation window (24) opening into the mixing stage (7) in a main flow direction (25) is formed above an outlet (26) of a disassembly nozzle (27).

58. Sanitary insert (1) according to one of the preceding claims, characterized in that a ventilation passage (9) preferably radially from the outside into an interior (10) of the mixing stage (7).

59. Sanitary insert (1) according to one of the preceding claims, characterized in that the support (33) is designed as a simple wall.

60. Sanitary insert (1) according to one of the preceding claims, characterized in that a ventilation window (24) is located at the level of or near outlets. (26) of disassembly nozzles (27) of the disassembly stage (9) is arranged.

61. Series of sanitary insert parts (1) , comprising at least two variants of sanitary insert parts (1) , wherein both variants each have a matching housing part (8) in which a disassembly stage (6) is held and in which an outwardly open air inlet (14) is formed, wherein in a first variant the disassembly stage (6) with the air inlet (14) forms at least one ventilation passage (9) and in a second variant the disassembly 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.

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

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