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 separating stage, for example one of the separating stages already mentioned, and a mixing stage formed downstream of the separating 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 common to insert flow obstructions in the form of grid inserts into the mixing stage; these can be made of various materials. A final outlet stage, which can be designed as a discharge structure, for example, can perform rectifying functions to generate a unidirectional outflow. Another function of an outlet stage can be, for example, to form a fluidically permeable termination of the mixing stage.

[0018] 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.

[0019] To solve the aforementioned problem, the invention proposes the features of claim 1. In particular, according to the invention, it is proposed that, in a sanitary insert of one of the types described above, 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 any impairment of the jet cross-section by the support can be at least partially or completely compensated.

[0020] 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.

[0021] 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.

[0022] 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 deformations and vibrations.

[0023] 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.

[0024] 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 if 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 50-60% range, but pressure equalization recesses with at least 60% or even at least 70% surface area are also possible.

[0025] In one embodiment of the invention, the at least one pressure equalization recess may allow a 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.

[0026] 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.

[0027] 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.

[0028] To solve the aforementioned problem, the invention proposes, alternatively or additionally, the combination of features of the second 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.

[0029] 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.

[0030] Alternatively or additionally, the invention proposes the combination of features of the third 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, at least one flow obstruction is supported offset at an outlet step. 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.

[0031] Particularly favorable constellations result from combining the described configurations with each other.

[0032] Alternatively or additionally, the invention proposes the combination of features of the fourth 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.

[0033] 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.

[0034] Alternatively or additionally, the invention proposes the features of the fifth 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 allows for a particularly compact routing of the ventilation passage and an outlet into the mixing stage as close as possible to the outlets of the dispersing nozzles. For example, the part may form a deflecting surface for this purpose. In another embodiment of the invention, each of the two parts may limit the ventilation passage in the circumferential direction of the sanitary insert. Thus, a localized air supply is possible.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Ventilation passages can also be formed from more than two parts, for example by repeating or combining the two variants just described.

[0045] Alternatively or additionally, the invention proposes the combination of features of the sixth 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] The air channel design at the disassembly stage can be characterized, for example, by the fact that a (preferably flat or regular) base body with a three-dimensional structure is modified to form air channels. For example, an air channel can be formed by a depression, by limiting ribs, or by other material reductions and / or adjacent material accumulations.

[0051] Preferably, the air duct is open on one side.

[0052] By incorporating the air duct, particularly as part of the aforementioned ventilation passage, in the separation stage, an unventilated jet regulator can also be easily created by using a separation stage that lacks the aforementioned air duct.

[0053] This helps to reduce the variety of parts in the manufacture of an assortment of sanitary fittings with different functions.

[0054] Relocating the ventilation channel, at least partially, to the disassembly stage can also help to reduce the overall height of the insert. In one embodiment of the invention, it can be provided that the respective structures in both parts can be formed without undercuts. An advantage of this is that the aforementioned ventilation channel, which is composed of two (or more) parts, can be easily formed in the respective parts, allowing for simple demolding.

[0055] 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 partially or section by section form the ventilation passage. An advantage of this embodiment is that complex structures that are difficult to demold can be avoided.

[0056] In one embodiment of the invention, one of the two parts (for example, the first part already mentioned) may be a housing part. An advantage of this is that additional parts are avoided which are not otherwise necessary for the formation of a sanitary insert.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] Preferably, the ventilation passage has at least one change of direction. This allows air to be supplied in confined spaces.

[0061] To solve the aforementioned problem, the features of the seventh 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.

[0062] 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.

[0063] In one embodiment of the invention, a downstream boundary edge of a ventilation window opening into the mixing stage may 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.

[0064] Alternatively or additionally, it can be provided that the ventilation passage leading into the mixing stage is arranged, at least in a partial section, upstream of the outlets of the separation stage in a main flow direction. Thus, a ventilation window can be arranged at the level of 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 for the airflow and increases air intake. Alternatively or additionally, the invention proposes the combination of features of the eighth 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 proposed that 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 vented and unvented aerators can be easily manufactured.

[0065] Alternatively or additionally, the invention proposes the features of the ninth 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 at the separation stage and / or the reduction stage, as these functional stages create significant flow resistances. A seal according to the invention is particularly advantageous for such functional stages.

[0066] 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.

[0067] Alternatively or additionally, the invention proposes the combination of features of the tenth 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 easy to ensure that several separation nozzles preferably meet the same flow obstruction centrally. This can be advantageous for mixing in the mixing stage.

[0068] For example, the flow obstruction can be integrally connected to the disassembly stage. This allows for automatic alignment of the flow obstruction with the position of the disassembly nozzles, without the need for subsequent assembly steps to achieve this alignment.

[0069] 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.

[0070] 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.

[0071] In one embodiment of the invention, the separation nozzles can each be designed to be straight. This allows for a simple way to create a defined jet direction with which the individual jets of the separation nozzles can be directed towards the flow obstructions.

[0072] In one embodiment of the invention, it can be provided that the beam direction of each separation nozzle is directed towards the associated flow obstruction. It is advantageous that the individual jets from each separation nozzle can strike at least one flow obstruction as centrally as possible, particularly when there is a small number of flow obstructions overall.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 the 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.

[0079] 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.

[0080] 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.

[0081] 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 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.

[0082] 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.

[0083] 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 sub-spaces formed by the support.

[0084] 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.

[0085] 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.

[0086] 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 can be connected by the pressure equalization openings and / or pressure equalization recesses.

[0087] 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.

[0088] 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.

[0089] In one embodiment of the invention, the at least one pressure equalization recess may 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 bounds the mixing stage in the circumferential direction, the wall being formed by the housing part. Such a pressure equalization recess can be particularly suitable for providing pressure equalization between the partial spaces formed by the support.

[0090] 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.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] 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.

[0095] 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 a main flow direction, 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.

[0096] 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 aeration, 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.

[0097] This is made possible by the following inventions:

[0098] 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 previously common precise positioning of inserts (grids) is no longer necessary. This can simplify assembly and reduce tolerances that impair blast quality.

[0099] 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 a "targeted air channel." A distance of only 3 mm below the separating stage can already result in a significant pressure drop.The above-mentioned advantage is particularly noticeable in variants that have only low flow rates (water-saving jet regulators).

[0100] 3. Implementation of splash protection via the position / high-positioned ventilation inlets: It has been found that the outflow 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 outflow side of the dismantling stage, this effect can be considerably reduced or even completely eliminated. Therefore, the present invention represents a significant product improvement.

[0101] 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.

[0102] It shows

[0103] Fig. 1 shows a first variant of a sanitary insertion unit in its operating position in an axial section.

[0104] Fig. 2 shows a second variant of a sanitary insertion unit in its operating position in an axial section.

[0105] Fig. 3 shows the sanitary insertion unit according to Fig. 2 in an axial section rotated relative to Fig. 2.

[0106] 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.

[0107] Fig. 5 shows the isolated disassembly stage from Fig. 2 in a three-dimensional oblique view on the inflow side,

[0108] Fig. 6 shows the insulated housing part from Figs. 1 and 2 in a three-dimensional axial section.

[0109] Fig. 7 shows the isolated disassembly stage from Fig. 2 in a three-dimensional oblique view on the outflow side,

[0110] Fig. 8 shows the isolated disassembly stage from Fig. 1 in a three-dimensional oblique view on the outflow side,

[0111] Fig. 9 shows a detail view from Fig. 1.

[0112] Fig. 10 shows another three-dimensional sectional view of the embodiment according to Fig. 1,

[0113] Fig. 11 shows a three-dimensional oblique view of an outflow side of an isolated disassembly stage of a further embodiment according to the invention.

[0114] Fig. 12 shows a three-dimensional oblique view of an outflow side of an isolated disassembly stage of a further embodiment according to the invention without a support.

[0115] Fig. 13 shows a three-dimensional oblique view of a support suitable for the disassembly stage,

[0116] Fig. 14 shows an axial section through the composite combination of disassembly stage according to Fig. 12 with support according to Fig. 13,

[0117] 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.

[0118] Fig. 16 shows an axial section through the disassembly stage according to Fig. 15,

[0119] Fig. 17 shows a further axial section through the disassembly stage according to Fig. 15, rotated by 90° compared to Fig. 16.

[0120] Fig. 18 shows a further embodiment of a sanitary insert of the hidden type according to the invention in a three-dimensional sectional view and

[0121] Fig. 19 shows another embodiment according to the invention in a three-dimensional sectional view.

[0122] The figures are described collectively below, where appropriate. Structurally and / or functionally similar or identical components and functional units are designated with matching reference numerals and are not described separately. The descriptions therefore apply to all figures unless otherwise stated.

[0123] 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 with a nozzle 2 to an outlet piece 3, for example on an outlet pipe, of a sanitary fitting (not shown).

[0124] The mouthpiece 2 has a thread 4 in a manner known per se, which is screw-fastened to the outlet piece 3 with a corresponding counter-thread 5.

[0125] 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.

[0126] 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.

[0127] The sanitary insert 1 has, in a manner known per se, a decomposition stage 6 and a mixing stage 7 fluidically subordinate to the decomposition stage 6.

[0128] The mixing stage 7 is formed in a housing part 8, to which the disassembly stage 6 is attached.

[0129] Figure 9 shows a detailed enlargement from Figure 1.

[0130] A ventilation passage 9 leads from the outside into an interior space 10 of mixing stage 7 .

[0131] 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.

[0132] 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 .

[0133] The two parts 11, 12 are thus joined together along a separation line that runs along the direction of airflow 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. Figures 8 and 9 clearly show that the air channel 16 forms a concave surface, created by material reduction, indentation, molding, recess, or the like. The separation line is horizontal, i.e., perpendicular to the vertically oriented joining direction. The separation line (as the intersection of the separation surface with the ventilation channel) has further vertically extending sections before and after this section, which are not of interest here.

[0134] The part of the ventilation passage 9, which is formed in the first part 11, i.e. the housing part 8, is bounded by the first part 11 along a closed circumference.

[0135] In part 12, i.e., the separation stage 6, the ventilation passage 9 is limited only by an air duct 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 is formed on side 15 from a multitude of air ducts 16.

[0136] 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 56, which interact sealingly with the counter-structure 18, a ring-shaped circumferential counter-contact surface.

[0137] 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.

[0138] 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.

[0139] 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.

[0140] The housing part 8 with the outlet structure 20 forms the so-called basket .

[0141] In another embodiment, the outlet structure on the housing part 8 is missing, and the arrangement 41 of flow obstructions 32 is open and free at the bottom.

[0142] 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).

[0143] 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 oriented and opens at the level of the underside 15 of the separation stage 6. The ventilation window 24 is bounded downwards (downstream) by a limiting edge 23 formed on the housing part 8. The ventilation window 24 is thus located at or slightly above, measured in a main flow direction 25, the outlets 26 of the separation nozzles 27 in the separation stage 6. The strongest negative pressure prevails at the underside 15 of the separation stage. The ventilation window or ventilation passage is optimally positioned there, as this ensures that a large amount of air is drawn in and directed into the interior 10 of the mixing stage 7.

[0144] Since there are several air ducts 16, several ventilation passages 9 are defined, which run together in sections.

[0145] Figures 2-3 and 7 show another embodiment according to the invention.

[0146] 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 flat or planar 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 56 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.

[0147] Figure 2 is therefore used to generate an unventilated, i.e., for example, laminar jet.

[0148] 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.

[0149] This sealing element 29 is deformable and ensures a tight seal above the disassembly stage 6. The applied operating pressure further increases this tightness, as the sealing element 29 is pressed against the housing part 8 by the operating pressure.

[0150] 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.

[0151] 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.

[0152] The sealing element 29 is formed in one piece at the disassembly stage 6 and molded onto it.

[0153] In another embodiment, the sealing element 29 is additionally or alternatively formed on the reduction stage 30.

[0154] 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 base shapes, particularly cuboid shapes, are also implemented in further embodiments. The sanitary inserts 1 can therefore be easily connected to a sanitary fitting by means of a screw connection.

[0155] In the interior space 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 up individual jets exiting the dispersing nozzles 27 of the dispersing stage 6 and to deflect them into the interior space 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. 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 space 10.

[0156] The support 33 is designed in such a way that it structurally divides the interior space 10 into two sub-spaces 34, 35.

[0157] The support 33 is suspended on the underside 15 of the dismantling stage 6.

[0158] In the embodiments shown in Figures 1 to 11, the support 33 is formed integrally with the disassembly stage 6. In the embodiment shown in Figures 12 to 14, the support 33 with the flow obstructions 32 is formed separately from the disassembly stage 6 and positively connected to it.

[0159] This spatial subdivision creates the risk that the beam cross-section will be elongated along its longitudinal extent on the support 33, so that the emerging beam no longer has a round cross-section.

[0160] To avoid 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.

[0161] 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.

[0162] This equalization, which induces a cross-flow, leads to a return to the round cross-sectional shape of the exiting water jet. The fluid paths 38, 39, and 40 are independent of each other and can thus achieve good equalization between the flow conditions in subspace 34 and subspace 35.

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

[0164] 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.

[0165] 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).

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

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

[0168] 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.

[0169] The support is circular in shape and arranged laterally offset from the center of the support 33.

[0170] 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.

[0171] 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.

[0172] 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 .

[0173] The disassembly nozzles 27 are each designed in a straight line and aim at an associated flow obstruction 32 .

[0174] 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.

[0175] 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.

[0176] 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.

[0177] Figures 7 and 8 show that in the embodiments shown in Figures 1 and 2, the two levels 46 and 47 of flow obstructions 32 are parallel to each other, but laterally offset.

[0178] In the embodiment shown in Figure 11, the flow obstructions of the two floors 46, 47 are arranged in a crossed arrangement.

[0179] 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.

[0180] In this way a variant according to Figure 1 is formed in which an air inlet 14 is connected to the interior 10 via the ventilation passage 9 to produce an aerated water jet.

[0181] 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.

[0182] 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.

[0183] Figure 12 shows the deflecting surface 51, which forces at least one deflection of the airflow in the air duct 16.

[0184] Figure 12 also shows that each ventilation passage 9 in the second part 12 is limited in the circumferential direction by two boundaries 52.

[0185] 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.

[0186] 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 overflow events at the ventilation window 24 or through the ventilation passage 9. These overflow events can be caused, for example, by backflowing or splashing water within the mixing stage 7.

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

[0188] In another 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.

[0189] 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 an equalization between the sub-chambers 34, 35.

[0190] Reference list for sanitary inserts

[0191] mouthpiece

[0192] outlet piece

[0193] thread

[0194] Counter thread

[0195] Disassembly stage

[0196] Mixing stage

[0197] Housing part

[0198] ventilation corridor

[0199] interior

[0200] (first) part

[0201] (second) part

[0202] Airflow direction

[0203] air intake

[0204] (Sub-) page

[0205] air channel

[0206] structure

[0207] (Counter-) Structure

[0208] Exit stage e

[0209] Outflow structure

[0210] wall thickness

[0211] U-turn

[0212] Boundary edge

[0213] ventilation tens ter

[0214] Main flow direction

[0215] Exit

[0216] Dismantle nozzle

[0217] Gap

[0218] Sealing element

[0219] Reduction stage

[0220] front sieve

[0221] Flow obstruction

[0222] carrier

[0223] Subspace Subspace Pressure equalization recess Pressure equalization opening (first) Fluid path (second) Fluid path (third) Fluid path Arrangement of flow obstructions Support Intermediate space Arrangement of rows Row (first) Level (second) Level Interface Snap connection Annular space Surface Boundary Double wall Subarea Gap Contact surface

Claims

Claims 1. Sanitary insert (1) , in particular with a round Basic form, comprising a separation stage (6) and a mixing stage (7) formed downstream of the separation 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) fluidically connecting the at least two sub-chambers (34) , (35).

2. 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) defines at least two, preferably at least three, fluid paths (38) , (39) , (40) between the sub-spaces (34) , (35) , in particular wherein the pressure equalization recess (36) is designed as several pressure equalization openings (37) , which are not interconnected.

3. 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) for the flow obstructions (32) arranged in the mixing stage (7), 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-chambers. and / or which can result in a more uniform cross-sectional pattern of the emerging water jet.

4. Sanitary insert (1), in particular according to the preamble of claim 1 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).

5. Sanitary insert (1), in particular according to the preamble of claim 1 or 4 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, characterized in that the at least one flow obstruction (32) is preferably laterally offset and / or supported on an outlet stage (19).

6. Sanitary insert (1), in particular according to the preamble of claim 1, 4 or 5 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).

7. Sanitary insert (1) , in particular after the top- grip of claim 1, 4, 5 or 6 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).

8. Sanitary insert (1), in particular according to the preamble of claim 1, 4, 5, 6 or 7 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) leading into a mixing stage (7) 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.

9. 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).

10. 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) defines a boundary surrounding the ventilation passage (9) and / or that the ventilation passage (9) is limited by an annular space (50) of the mixing stage (7).

11. 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) limits the ventilation passage (9) in the circumferential direction of the sanitary insert (1).

12. 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).

13. Sanitary insert (1), in particular according to the preamble of claim 1, 4, 5, 6, 7 or 8 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 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).

14. 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 sectionally form the ventilation passage (9), can be formed without undercuts and / or are open on at least one side .

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

16. 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).

17. Sanitary insert (1), in particular according to the preamble of claim 1, 4, 5, 6, 7, 8 or 13 or according to one of the preceding claims, comprising a housing part (8) forming a mixing stage (7) preferably fluidically downstream of a separation 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).

18. 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 or an ventilation passage (9) opening into the mixing stage (7) is arranged at least in a partial area (54) upstream of outlets (24) of the separation stage (6) in a main flow direction (25).

19. Sanitary insert (1) , in particular according to the preamble of claim 1, 4, 5, 6, 7, 8, 13 or 17 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).

20. Sanitary insert (1), in particular according to the preamble of claim 1, 4, 5, 6, 7, 8, 13, 17 or 19 or according to one of the preceding claims, comprising 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 (28) between the functional stage and the housing part (8) is closed with a deformable sealing element (29).

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

22. Sanitary insert (1), in particular according to the preamble of claim 1, 4, 5, 6, 7, 8, 13, 17, 19 or 20 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 arranged in a downstream extension of the row (45).

23. 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 on 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).

24. 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 separation stage (6) is suspended on a housing part (8) forming a discharge stage (19) .

25. 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 an interface (48) and / or that the interface (48) forms a snap 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.

26. 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).

27. Sanitary insert (1) , in particular according to the preamble of claim 1, 4, 5, 6, 7, 8, 13, 17, 19, 20 or 22 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.

28. 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).

29. 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).

30. 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 equalize the flow conditions in the subspaces (34) and (35).

31. 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.

32. 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).

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

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

35. Sanitary insert (1) according to one of the preceding claims, characterized in that a ventilation passage (9) leading into the mixing stage (7) has an air inlet (14) opening to the outside in the housing part (8).

36. 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.

37. 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).

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

39. Sanitary insert (1) according to one of the preceding claims, characterized in that a discharge stage (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.

40. 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).

41. 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 formed in a main flow direction (25) above an outlet (26) of a separating nozzle (27).

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

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

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

45. Series of sanitary inserts (1) , with at least two variants of sanitary inserts (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) forms at least one ventilation passage (9) with the air inlet (14) 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.

46. ​​Use of a downstream side (15) of a disassembly stage (6) for forming a ventilation passage (9) of a sanitary insert part (1), in particular according to one of the preceding claims 1 to 28, characterized in that at least one structure is formed in the disassembly stage (6) which contributes to the formation of the ventilation passage (9).

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