Sanitary insert unit

Abstract

The invention relates to a sanitary insertion unit (116) with a functional unit providing a flow opening (8), which has an actuating element (9) arranged to be axially movable or adjustable into and out of the flow opening (8), wherein the actuating element (9) is in drive connection with an actuating element (10) which (10) is arranged on the downstream side of the flow opening (8) and can be actuated from the outside. A characteristic feature of the insertion unit (116) according to the invention is that a sliding guide (11) with at least one leading edge (12) is arranged in the drive connection between the actuating element (10), which converts a rotary movement of the actuating element (10) into an axial actuating movement of the actuating element (9).

Description

[0001] The invention relates to a sanitary insertion unit with a functional unit providing a flow opening, which has an actuating element which is arranged to be axially movable or adjustable into and out of the flow opening, wherein the actuating element is in drive connection with an actuating element which is arranged on the outflow side of the flow opening and can be actuated from the outside.

[0002] From EP 2 536 886 B1, a sanitary insert unit of the type mentioned above is already known, which can be inserted into the water outlet of a sanitary outlet fitting. To be able to change the flow cross-section of the insert unit and / or the volume flow of the water flowing through it, the previously known insert unit has a functional unit that provides a flow opening, wherein an actuating element is arranged to be axially adjustable into and out of the flow opening. By axially adjusting the actuating element, which is located on one downstream side of the flow opening, the clear flow cross-section of the flow opening can be changed. In an embodiment of EP 2 536 886 B1 shown in Figures 28 to 34, the actuating element is guided axially displaceably but rotationally fixed within the housing.The actuator has a threaded opening on its downstream end face, into which an externally operable actuating element with an internal thread engages. The actuating element rests at its end facing away from the actuator against the honeycomb-structured outlet end face of the known insertion unit. By unscrewing the actuating element from the threaded opening in the actuator, the actuator is displaced within the housing of the known insertion unit against the flow direction, and the clear flow cross-section can be changed accordingly. However, unscrewing the actuator and actuating element carries the risk that the housing parts, which are detachably interlocked, will also be forced apart, causing the known functional unit to fall apart.

[0003] The task is therefore to create a sanitary deployment unit of the type mentioned at the beginning, which is characterized by a high level of functional reliability.

[0004] The solution to this problem according to the invention, in the insertion unit of the type mentioned at the outset, consists in the fact that a sliding guide with at least one chamfer is arranged in the drive connection between the actuating element and the positioning element, which converts a rotary movement of the actuating element into an axial positioning movement of the positioning element.

[0005] The insertion unit according to the invention comprises a functional unit that provides a flow-through opening for the water flowing through the insertion unit. An actuating element is provided, which is axially movable or adjustable to increase the flow resistance formed by the flow-through opening into the opening and to decrease it out of the opening. The actuating element of the functional unit providing the flow-through opening is in drive connection with an actuating element, which is arranged on the downstream side of the flow-through opening and can be actuated from the outside. A sliding guide with at least one chamfer is arranged in the drive connection between the actuating element and the actuating element, which converts a rotary movement of the actuating element into an axial actuating movement of the actuating element.The insertion unit according to the invention is characterized by a high degree of functional reliability. By adjusting the externally actuating element of the insertion unit according to the invention, the amount of water flowing through it can be limited or regulated to an adjustable maximum value, independent of pressure.

[0006] A preferred embodiment according to the invention provides that the sliding guide formed between the actuating element and the actuator defines a closed guide path, so that the actuating element returns to its initial position after at most one full rotation of the actuator, and in particular after half a rotation. In this embodiment, handling errors are reliably avoided because the actuating element always returns to its initial position after one full rotation. The actuator can be moved in either direction of rotation without triggering malfunctions of the insertion unit according to the invention. Since operating errors are eliminated in this embodiment, the functional reliability of the insertion unit according to the invention is further enhanced.

[0007] Operating errors can also be prevented by designing the sliding guide without stops. With such a stop-free sliding guide, it is possible to rotate the actuating element more than 360°, whereby the actuating element returns to its starting position after a maximum of one full rotation of the actuating element.

[0008] A finely metered adjustment of the insertion unit according to the invention is facilitated if the sliding guide is designed without steps or jumps.

[0009] To prevent the set water volume from changing unintentionally during operation of the insertion unit according to the invention, it is advantageous if the slope of the approach ramp is dimensioned such that the sliding guide is self-locking.

[0010] A structurally simple and therefore preferred embodiment according to the invention provides that the ramp forms a section of a preferably circumferential guide track.

[0011] To prevent unintentional adjustment of the relative position between the actuating element and the adjusting element, an embodiment according to the invention provides that a detent mechanism, in particular with at least one ball detent, is formed with which the actuating element and / or the adjusting element can be fixed in different angular positions. A preferred embodiment according to the invention provides that part of the detent mechanism is formed on the sliding guide.

[0012] It can be advantageous if the actuating element is rotatable and, in particular, axially rotatable on the housing part or insert part.

[0013] In contrast, another embodiment according to the invention provides that the actuating element is guided in a rotationally fixed but axially displaceable manner on the housing part or insert part.

[0014] It is also possible that the actuating element is connected to the actuator in a rotationally fixed but axially adjustable manner.

[0015] The actuating element can be moved into the desired position with minimal effort if the sliding guide has at least one guide projection, preferably at least two guide projections, which run along the approach ramp.

[0016] In a preferred embodiment according to the invention, the guide projection, or a guide projection running along the approach ramp, is connected to the actuating element in a rotationally fixed, and in particular rigid, manner. This guide projection can, for example, be integrally formed with the actuating element.

[0017] In order to convert a rotary movement on the actuating element into an axial positioning movement of the actuating element, it is advantageous if the actuating element is axially movable and / or rotationally fixed to the actuating element, in particular guided axially on the actuating element.

[0018] The design and manufacturing effort can be significantly reduced if the sliding guide forms a one-sided guide.

[0019] Since a rotary movement at the actuating element can be converted into an axial positioning movement of the actuating element with the aid of the sliding guide, it can be advantageous if the actuating element is pressed against the one-sided guide by an inflowing water pressure.

[0020] A particularly simple embodiment according to the invention provides that the sliding guide is formed by a thread. The chamfer can be formed by a thread turn.

[0021] A preferred embodiment according to the invention provides that the sliding guide is formed by a screw connection between the actuating element and the adjusting element.

[0022] To further simplify the design and manufacturing effort, it can be advantageous if the actuating element is rigidly connected to the adjusting element, in particular in one piece.

[0023] In order to regulate the amount of water flowing through per unit of time to an adjustable maximum value, a further development according to the invention provides that the functional unit is a flow rate controller, and that a control profile of the flow rate controller, which interacts with an elastic control element for flow rate control, is formed on the actuating element.

[0024] It is advantageous if the actuating element allows the cross-sectional area of ​​the flow opening to be changed.

[0025] According to another embodiment of the invention, the functional unit is a throttle, wherein the actuating element sets an opening cross-section of the throttle.

[0026] The downstream portion of the insertion unit according to the invention, for example, which protrudes beyond an outlet nozzle, can also serve as an actuating element if the actuating element forms a gripping surface on an outer circumference of the insertion part.

[0027] In order to form a homogeneous and non-splashing discharge jet in the insertion unit according to the invention, the actuating element forms a sieve- or grid-shaped discharge structure, in particular radially within the or a gripping surface.

[0028] A particularly compact and functional embodiment according to the invention provides that the actuating element has a grid-, mesh-, or honeycomb-shaped outlet structure with a plurality of flow openings, which outlet structure moves with the rotary motion of the actuating element. In this embodiment, the actuating element has an outlet structure that is designed in a grid-, mesh-, or honeycomb-shaped form and has a plurality of flow openings. In these flow openings of the outlet structure, the flowing water is formed into a homogeneous and non-splashing water jet. The outlet structure is connected to the actuating element and preferably integrally formed on it in such a way that this outlet structure moves with the rotary motion of the actuating element.

[0029] Unintentional adjustment of the insertion unit according to the invention is avoided if the guide track has plateau sections in which a rotation of the actuating element does not cause axial adjustment of the adjusting element.

[0030] For the same reason, it may be advantageous if the guide track or a guideway has at least one detent recess for at least one guide projection, which develops a detent resistance with the guide projection that prevents the actuating element from rotating.

[0031] Further developments according to the invention are described in the claims in conjunction with the description and the drawings. The invention is described in more detail below with reference to preferred embodiments.

[0032] It shows: Fig. 1 shows a sanitary insertion unit in a partially cutaway perspective view, which has a functional unit designed as an adjustable throttle; Fig. 2 shows the insertion unit that can be mounted on the water outlet of a sanitary outlet fitting. Figure 1 in a perspective top view of its outlet end face, Fig. 3 an insertion unit also shown in a longitudinally sectioned perspective view, which has a functional unit designed as a throttle, wherein this functional unit can be adjusted by rotating two housing parts that can be rotated relative to each other, Fig. 4 an inside the housing of the in Figure 3 The diffuser provided in the insertion unit shown is designed to divide the incoming water into a multitude of individual jets before these individual jets can then be mixed with ambient air inside the housing, Fig. 5 shows the diffuser made of Figure 4with a view to its upstream end face, wherein the diffuser has a central actuating element opening which is bounded by the guide track of a sliding guide, Fig. 6 the insertion unit made of Figure 3 in a longitudinal section, Fig. 7 the insertion unit from the Figures 3 and 6 in a cross-section through the in Figure 6 Section VII-VII shown in Fig. 8 is an outflow-side housing part of the housing that is in the Figures 3 , 6 and 7 The insertion unit shown in a representation pulled apart from the actuating element, Fig. 9, the downstream housing part with the actuating element in a view opposite Figure 8 rotated perspective view, Fig. 10 the insertion unit from the Figures 3 and 6In an expanded representation of its components, Fig. 11 shows an insertion unit, also shown here in a cutaway perspective view, which insertion unit has a functional unit designed as a throttle, wherein this functional unit has a flow opening, the clear opening cross-section of which is determined by means of a Figure 11 The separately shown actuating element is changeable, Fig. 12 the actuating element of the in Figure 11 The functional unit shown in a top view of the inflow side, Fig. 13, the actuating element made of Figure 12 in a longitudinal section through section plane XIII-XIII in Figure 14 , Fig. 14 the actuating element from the Figures 12 and 13 in a side view, Fig. 15 the actuating element from the Figures 12 to 14 in a opposite Figure 14side view rotated by 90°, Fig. 16 a partially longitudinally sectioned insertion unit, whose functional unit, which has an actuating element shown separately here, is designed as a flow rate regulator, Fig. 17 the insertion unit mounted on the water outlet of a sanitary outlet fitting by means of an outlet nozzle made of Figure 16 View through the partially cutaway water outlet of the sanitary outlet fitting, Fig. 18, the insert unit mounted on the water outlet of the sanitary outlet fitting made of the Figures 16 and 17 , where the insertion unit itself is also partially shown in longitudinal section, Fig. 19 the insertion unit from the Figures 16 to 18 in a opposite Figure 18 extended longitudinal section, Fig. 20 the insertion unit from the Figures 16 to 19 in a longitudinal section, Fig. 21 the insertion unit from the Figures 16 to 20 in a cross-section through section plane XXI-XXI according to Figure 20, Fig. 22 the insertion unit, also shown here in longitudinal section, from the Figures 16 to 21 in a opposite Figure 20 changed position of its actuating element, Fig. 23 the insertion unit from the Figures 16 to 22 in a cross-section through section plane XXIII-XXIII according to Figure 22 Fig. 24 shows a partially longitudinally sectioned insertion unit, whose functional unit, designed as an adjustable throttle, has an actuating element which is guided in the insertion unit in a rotationally fixed but axially displaceable manner, wherein a rotary movement on an actuating element can be converted into an axial actuating movement of the actuating element by means of a thread serving as a sliding guide, Fig. 25 shows the insertion unit shown longitudinally in section. Figure 24 In an open position of the functional unit designed as an adjustable throttle, Fig. 26, the longitudinally sectioned insertion unit from the Figures 24 and 25In a throttle position with a reduced clear flow cross-section, Fig. 27 shows a partially longitudinally sectioned insertion unit with a functional unit that has an actuating element guided in the insertion unit in a rotationally fixed but axially displaceable manner, which actuating element has at least one axially projecting sliding web on its downstream side, which slides on the guide track of a sliding guide formed circumferentially on the actuating element, Fig. 28 the insertion unit made of Figure 27 In a detailed longitudinal section in the area of ​​the sliding guide provided between the actuating element and the adjusting element, Fig. 29, the insertion unit from the Figures 27 and 28 in a cross-section, Fig. 30 the insertion unit made of the Figures 27 to 29 in a longitudinal section through section plane XXX-XXX according to Figure 29 , Fig. 31 the outflow-side housing part serving as an actuating element of the in the Figures 27 to 30shown insertion unit, together with the actuating element, in an expanded and partially longitudinally sectioned view of individual parts and Fig. 32 a opposite Figure 31 Alternative design of actuating element and positioning element.

[0033] In the Figures 1 to 31A sanitary insertion unit is shown in the embodiments 101, 103, 111, 116, 124, and 127. The sanitary insertion unit 101, 103, 111, 116, 124, and 127 can be inserted into the water outlet 1 of a sanitary outlet fitting. The embodiments 101, 103, 111, 116, 124, and 127 shown here have a one- or multi-part housing 2 that can be inserted into a sleeve-shaped outlet nozzle 3, which outlet nozzle 3 can be detachably mounted and, in particular, detachably screwed onto the water outlet 1 of the outlet fitting. In this case, a ring shoulder or a ring flange 4 is provided on the outer circumference of the housing 2, which, in the operating position of the insertion units 101, 103, 111, 116, 124 and 127, rests on the inner circumference of the sleeve-shaped outlet nozzle 3 (see Figure 19 ).

[0034] In the Figures 18 and 19Exemplary embodiment 116 shows that a thread 5 can be provided on the sleeve-shaped outlet nozzle 3, which can be screwed into a mating thread 6 on the outlet-side end of a valve body of the sanitary outlet fitting. At least one tool engagement surface 7 is provided on the outer circumference of the outlet nozzle 3, to which a turning tool, and in particular an open-end wrench used as a turning tool, can be attached.

[0035] Inside the housing 2 of the insert units 101, 103, 111, 116, 124, and 127, a functional unit is provided, which can be configured as a flow-limiting throttle (see insert units 101, 103, 111, 124, 127) or as a flow regulator that controls the volume of water flowing through per unit of time to a maximum value, independent of pressure (see insert unit 116). The functional units provided in the insert units 101, 103, 111, 116, 124, and 127 provide a flow opening 8 inside the housing 2, designed as an annular gap or control gap. In this arrangement, an actuating element 9 on the outflow side of the flow opening 8 can be actuated in such a way that this actuating element 9 is axially adjustable to increase the flow resistance formed by the flow opening 8 into the flow opening 8 and to decrease the flow resistance out of the flow opening 8.

[0036] The actuating element 9 is in drive connection with an actuating element 10, which actuating element 10 is arranged on the downstream side of the flow opening 8 and can be actuated from the outside. In the drive connection between the actuating element 10 and the actuating element 9, a sliding guide 11 with at least one chamfer 12 is arranged, which converts a rotary movement at the actuating element 10 into an axial actuating movement of the actuating element 9.

[0037] The insertion units 101, 103, 111, 116, 124 and 127 shown here are not only intended to limit the flow rate of water (insertion units 101, 103, 111, 124 and 127) or to regulate it to a maximum flow rate independent of pressure (see insertion unit 116), but also to shape the outflowing water in the insertion units 101, 103, 111, 116, 124 and 127 into a homogeneous, non-splashing and, if necessary, also a soft, pearly discharge jet.

[0038] The insertion units 101, 103, 111, 116, 124 and 127 have a jet breaker arranged on the downstream side of the flow opening 8, which divides the flowing water into a multitude of individual jets.

[0039] This jet splitter has a corresponding number of flow holes 13, in each of which a single jet is formed. The jet splitter could be designed as a perforated plate arranged approximately transversely to the flow direction. In contrast, in the insert units 101, 103, 111, 116, 124 and 127, the jet splitter is designed as a diffuser 14, which has a deflecting surface 15 that deflects the water flowing through the housing 2 approximately radially outwards and is bounded by an annular wall 16 that is raised in the opposite direction to the flow direction. The flow holes 13 of this jet splitter are provided in the annular wall 16, preferably spaced uniformly apart from one another in the circumferential direction.

[0040] The flow holes 13 open into an annular gap 17 that narrows in the direction of flow. This gap is formed between the diffuser 14, which serves as a jet breaker, and in particular its annular wall 16, on the one hand, and a diffuser ring 18 surrounding the diffuser 14, on the other. This diffuser ring 18 can be designed as a separate insertable part that can be placed into the housing 2, but here, in contrast, it is integrally formed with the inner circumference of the housing 2.

[0041] Since the annular gap 17 formed between diffuser 14 and diffuser ring 18 narrows at least partially in the direction of flow, and since the water flowing through it experiences an increase in velocity in certain areas, a negative pressure arises on the downstream side of this annular gap according to Bernoulli's equation. This negative pressure allows ambient air to be drawn into the interior of the housing 2. To enable this ambient air to flow into the housing 2, the housing 2 has one, and preferably several, ventilation openings 19 located in the direction of water flow, preferably directly below the annular gap 17 and especially below the diffuser ring 18. These ventilation openings 19 are designed as casing openings in the circumferential wall of the housing 2, spaced approximately uniformly apart from one another in the circumferential direction.The ambient air drawn in is mixed with the flowing water inside the housing before the water, thus swirled and mixed with the ambient air, is formed into a pearly-soft overall jet in a flow straightener 20 provided on the outflow side.

[0042] The flow straightener 20 can be a grid or mesh structure consisting of intersecting webs at intersection nodes, which define the flow openings 21 between them. The flow straightener 20 can be formed from several such grid or mesh structures arranged at close intervals. In the insert units 101, 103, 111, 116, 124, and 127 shown here, the flow straightener 20 is formed by only one such grid structure, which has honeycomb-shaped flow openings 21. This grid structure is integrally formed with the housing 2 and here forms its outlet face. Preferably, a circumferential, cross-sectionally narrowing constriction 22 is provided directly below the flow straightener 20, which contributes to the homogenization of the exiting water and counteracts splashing of the exiting water jet.

[0043] The in the Figures 1 and 2 , 3 to 10 and 11 to 15, 24 to 26 and 27 to 31 The insertion units 101, 103, 111, 124 and 127 shown have a functional unit designed as a throttle, in which the opening cross-section of the flow opening 8 can be changed by the actuating element 9. While the actuating element 9 of the insertion units 101, 103, 124 and 127 widens in the flow direction at its upstream end and is approximately conical or arrowhead-shaped there, the upstream end region of the actuating element 9 provided in the insertion unit 111 has a substantially cylindrical outer outline in which indentations open towards the cylinder circumference and towards the upstream side and tapering into the flow opening are formed, which are preferably distributed at uniform intervals around the circumference of the actuating element 9.

[0044] The actuating elements 9 of the insertion units 101, 103, 111, 116, 124 and 127 interact with a plate 23 located upstream of the actuating elements 9, in which a preferably centrally located actuating element opening 24 is provided. In the insertion units 101, 103, 124 and 127, an annular flow opening 8 is formed between the circumferential edge of the plate 23, which defines the actuating element opening 24, and the actuating element 9. The clear opening cross-section of this opening can be enlarged or reduced by axially adjusting the actuating element 9.In the insertion unit 111, the circumferential edge of the plate 23, which borders the actuating element opening 24, interacts with the flow grooves 25 provided in the actuating element 9, which have different cross-sections depending on the axial relative position of the adjustable actuating element 9, so that here too the opening cross-section of the flow opening 8, which is limited by the flow grooves 25, can be reduced or increased depending on the axial relative position of the actuating element 9.

[0045] In the insertion unit 101, the sliding guide provided between the actuating element 10 and the adjusting element 9 is formed by an external thread 26 arranged on the outer circumference of the actuating element 10 and a complementary mating thread 27, which is formed in a threaded opening located centrally in the diffuser 14. The threads form a chamfer that converts a rotary movement of the actuating element into an axial adjustment of the adjusting element 9, which is preferably integrally connected to the actuating element 10. At its end region facing away from the adjusting element 9, the actuating element 10 projects into a central actuating element opening 28 in the outlet-side grid structure. A tool engagement surface 29, designed here as an internal hexagon, is provided on the end face of the actuating element 10, against which a turning tool (not shown) can be applied.

[0046] The housings 2 of the insertion units 101, 103, 111, 116, 124 and 127 have at least two housing parts 30, 31 which are detachably connectable to one another and preferably lockable together. As shown in the Figures 18 and 19 As shown by way of example, the outflow-side housing part 30 protrudes at least with its outflow-side section beyond the outlet nozzle 3, so that the actuating element 10 is formed here by the outer circumference of the housing which serves as a gripping surface.

[0047] On the outlet-side grid structure of the insertion units 103, 111, and 116, which serves as a flow straightener 20, a non-circular coupling pin 32, approximately star-shaped in cross-section, is formed on the inlet side. This pin projects into a form-fitting coupling opening 33 on the adjacent end face of the actuating element 9. The actuating element 10 and the actuating element 9 are arranged relative to each other via the coupling pin 32 and the coupling opening 33 in a rotationally fixed but axially adjustable manner. A rotary movement at the actuating element 10 is thus transmitted to the actuating element 9 via the coupling pin 32 and the coupling opening 33.

[0048] In the insertion units 103, 111, 116, 124 and 127, a rotational force exerted on the outer circumference of the housing part 30, which serves as a gripping surface, is transmitted to the actuating element 9. In order for the outflow-side housing part 30, which serves as the actuating element 10, to be rotated relative to the inflow-side housing part 31, as shown in the Figures 18 and 19 As can be seen, the ring flange 4 is clamped between the ring shoulder on the inner circumference of the sleeve-shaped outlet nozzle 3 and the opposite end face of the water outlet 1. Thus, while the inlet-side housing part 31, which is clamped in a rotationally fixed manner, cannot be rotated further, the outlet-side housing part 30, on the other hand, is rotatably held on the housing part 31.

[0049] From the Figures 3 , 6 , 11 , 16 , 18 to 20 , 22, 24 to 26, 27Figure 30 makes it clear that the actuating element 9 of the functional units 103, 111, 116, 124, and 127 penetrates a preferably central through-opening 34 in the diffuser 14. The actuating element 9 rests with a cross-sectionally enlarged section or with at least one guide projection 35 and preferably two guide projections 35 projecting on opposite sides of the actuating element 9 on a sliding guide designed as a closed guide track 36, which is formed on the inflow side of the edge region of the diffuser 14 that borders the through-opening 34. This closed guide track 36 has at least one raised section 37 and at least one recessed section 38, which raised sections 37 and recessed sections 38 are connected to each other via ramps 12.The sliding guide 11 defines a closed guide track 36, so that the actuating element 9 returns to its initial position after at most one full rotation, but particularly after half a rotation. A rotary movement of the actuating element 9 is converted into an axial actuating movement of the actuating element 9 by the guide projections 35 sliding on the guide track 36.

[0050] The sliding guide is designed here as a one-sided guide, in which the actuating element 9 is pressed against the guide track 36, particularly with its guide projections 35. In the case of insertion units 101, 103, and 111, the inflowing water pressure presses the actuating element 9 against the one-sided guide of the guide track 36. In contrast, the actuating element 9 of insertion unit 116 is pressed against the guide of the guide track 36 by means of a compression spring 37, which is arranged in an insertion opening 57 in the actuating element 9 and is supported on one side by the actuating element 9 and on the other side by an inflow-side pre-screen 39.

[0051] The insert units 101, 103, 111, 116, 124, and 127 each have an inlet-side pre-filter 39 designed to filter out limescale and other dirt particles carried in the water before these particles can impair the function of the insert units 101, 103, 111, 116, 124, and 127 inside the housing. The guide track 36 has plateau sections 40 in which rotation of the actuating element 10 does not cause axial adjustment of the adjusting element 9. The recesses 38 in the guide track 36 are designed as detent recesses for the guide projections 35, which, together with the guide projections 35, create a detent resistance that prevents rotation of the adjusting element 9.

[0052] The functional unit provided in the insertion unit 116 is designed as a flow regulator, intended to control the volume of water flowing through it per unit of time to an adjustable maximum value, independent of pressure. The actuating element 9 of the insertion unit 116 has a control profile with indentations open towards the inflow side and the circumference of the actuating element. These indentations have a clear cross-section that decreases in the direction of flow. The control profile provided on the actuating element 9 of the insertion unit 116 interacts with an annular control body 40 made of elastic material. Depending on the pressure of the inflowing water, the control body 40 conforms more or less strongly to the indentations of the control profile arranged on the actuating element 9, thereby altering the flow opening 8 between the adjacent edge region of the plate and the control body 40 on the one hand, and the actuating element 9 on the other.

[0053] In Figure 10It can be seen that the insertion unit 103 has at least one anti-rotation projection 43 on the outer circumference of its diffuser 14, which engages in an anti-rotation recess 44 on the inner circumference of the diffuser ring 18. Since the diffuser ring 18, which is integrally formed with the inlet-side housing part 31, is held non-rotatably on the water outlet 1 of the sanitary outlet fitting, the diffuser 14 is also secured non-rotatably when the outflow-side housing part 30 is rotated relative to it.

[0054] In Figure 10It is evident that at least one snap tab 45 can be formed on the inlet-side housing part 31, and in particular on the diffuser ring 18 integrally molded thereon. This snap tab interacts with at least one snap recess 46 on the inner circumference of the outlet-side housing part in the sense of a detent mechanism. The at least one snap tab 45, interacting with the snap recesses 46, provides the user with a detent sensation when the outlet-side housing part is rotated. To increase and / or refine the detent sensation, a ball detent can be provided at the free end of the snap tab 45, which interacts with a spherical recess in the snap recess 46. For the same purpose, it is also possible to provide small indentations in the guide track 36, and in particular in the area of ​​its raised sections 37 and / or recesses 38, to also provide a detent sensation when the lower housing part is rotated.

[0055] Since the flow opening forms a cross-sectional narrowing and leads to an increase in the velocity of the flowing water, in order to reduce the flow velocity in the area of ​​the diffuser 14, flow obstacles 47 are arranged upstream of the flow holes 13 in the area of ​​its deflection surface 15.

[0056] Even in the Figures 24 to 26 and 27 to 31In the insertion units 124 and 127 shown, the inlet-side housing part 31 with its ring flange 4 is fixed against rotation at the water outlet of a sanitary outlet fitting, while the outlet-side housing part 30 serves as an actuating element 10 that can be manually grasped on the outer circumference of the housing. As with the insertion units 103, 111, and 116, the outlet-side housing part 30, which serves as the actuating element 10, has an outlet structure forming the outlet face of these insertion units, with a plurality of honeycomb-shaped flow openings 21, which rotates with this actuating element 10.

[0057] The insertion unit 124 has an actuating element 10, on the upstream side of whose outlet structure, designed as a flow straightener, a threaded stud 48 projects against the flow direction. This threaded stud 48 has an external thread that serves as a sliding guide for the adjusting element 9. The adjusting element 9 has a threaded opening 49 with an internal thread into which the external thread of the threaded stud 48 is screwed. At least one guide projection 50 projects laterally from the adjusting element 9, which is guided axially displaceably in an associated axial guide groove 51. This guide groove 51 is provided in the diffuser 14 and is open towards the through-opening 34 in the diffuser 14.

[0058] A rotary movement at the actuating element 10 is thus transmitted to the threaded pin 48. Since the adjusting element 9 of the insertion unit 124 is guided in the through-opening 34 of the diffuser 14 in a rotationally fixed but axially displaceable manner, the rotary movement transmitted to the threaded pin 48 and its external thread serving as a sliding guide is converted into an axial adjusting movement of the adjusting element 9.

[0059] In a modified version of the insertion unit 124, not shown here, the threaded stud 48 can instead have an internal thread into which the adjusting element 9 is screwed with an external thread.

[0060] In the insertion units 124 and 127, the actuating element 9 is guided in the through-opening 34 of the diffuser 14 in a rotationally fixed but axially displaceable manner. A guide pin 52 projects from the outlet structure of the insertion unit 127, and a sliding guide 11, designed as a cam track, is integrally formed on the circumference of this pin. The free end of the guide pin 52 projects into a guide opening 53, which is provided on the end face of the actuating element 9 facing the outlet structure.The actuating element 9 of the insertion unit 127 has at least one sliding web 54 and – as here – preferably two sliding webs 54 arranged on opposite sides of the actuating element 9. These sliding webs 54 slide on the guide track of the circumferential sliding guide 11 and, during a rotational movement of the actuating element 10, engage the spaced-apart ramps 12 provided on the guide track and arranged at different heights of the guide pin 53, such that the actuating element 9 performs a corresponding actuating movement in the axial direction. Small recesses 55 are formed in this guide track, into which the sliding web 54 can engage, thus securing the actuating element 9's position. Figures 29 and 30It can be seen that the guide projections 50 projecting laterally on the actuating element 9, which are each guided in a guide groove 51, guide the actuating element 9 in the through-opening 34 of the diffuser 14 in a rotationally secured but axially displaceable manner.

[0061] In Figure 31 The sliding guide 11, which runs around the circumference of the guide pin 52, is clearly visible with one of the recesses 55. Figure 32 A modified embodiment is shown in which the guide track serving as a sliding guide is formed by the end face of the actuating element 9 facing the outlet structure, while a sliding web 56 is integrally formed on the circumference of the guide pin 52. Recesses 55 may also be provided in the guide track of the sliding guide located at the end face of the actuating element 9, which interact with the sliding web 56 as detent notches.

[0062] The insert units 101, 103, 111, 116, 124, and 127 shown here form a jet aerator that shapes the exiting water into a homogeneous, non-splashing, and gently aerated jet. These jet aerators incorporate either a throttle (insert units 101, 103, 111, 124, and 127) or a flow regulator (insert unit 116) that limits the flow volume or regulates it to an adjustable maximum value, independent of pressure. The insert units 101, 103, 111, 116, 124, and 127 described here are characterized by high operational reliability, cost-effective manufacturing, and ease of use. Reference symbol list

[0063] 1 Water outlet 2 Housing 3 Outlet nozzle 4 Ring flange 5 Thread 6 Mating thread 7 Tool engagement surface 8 Flow opening 9 Actuating element 10 Actuating element 11 Sliding guide 12 Lead-in chamfer 13 Flow holes 14 Diffuser 15 Deflection surface 16 Ring wall 17 Annular gap 18 Diffuser ring 19 Ventilation opening 20 Flow straightener 21 Flow openings 22 Housing constriction 23 Plate 24 Actuating element opening 25 Flow groove 26 External thread 27 Mating thread 28 Actuating element opening 29 Tool engagement surface 30 Downstream housing part 31 Inflow housing part 32 Coupling pin 33 Coupling opening 34 Through opening 35 Guide projection 36 Guide track 37 Compression spring 38 Recess 39 Front screen 40 Plateau section 41 Control body 43 Anti-rotation projection 44 Anti-rotation recess 45 Snap-in 46 Snap-in 47 Flow obstructions 48 Threaded stud 49 Threaded opening 50 Guide projection 51 Guide groove 52 Guide stud 53 Guide opening 54 Sliding web 55 Recess 56 Sliding web 57 Insertion opening 101 Insertion unit(according to the Figures 1 and 2 ) 103 Insertion unit (according to the Figures 3 to 10 ) 111 Insertion unit (according to the Figures 11 to 15 ) 116 Insertion unit (according to the Figures 16 to 23 ) 124 Insertion unit (according to the Figures 24 to 26 ) 127 Insertion unit (according to the Figures 27 to 31 )

Claims

1. Sanitary insertion unit (101, 103, 111, 116, 124, 127), with a functional unit providing a flow opening (8), which has an actuating element (9) which actuating element (9) is arranged to be axially movable or adjustable into and out of the flow opening (8), wherein the actuating element (9) is in drive connection with an actuating element (10) which (10) is arranged on the downstream side of the flow opening (8) and can be actuated from the outside, wherein a sliding guide (11) with at least one leading edge (12) is arranged in the drive connection between the actuating element (10) and the actuating element (9), which converts a rotary movement of the actuating element (10) into an axial actuating movement of the actuating element (9), characterized by the fact that the actuating element (10) forms a sieve- or grid-shaped outlet structure.

2. Sanitary insertion unit according to claim 1, characterized by the fact thatThe sliding guide (11) defines a closed guide track (36) so that the actuating element (9) returns to its starting position at the latest after one full turn of the actuating element (10), in particular after half a turn.

3. Sanitary insertion unit according to claim 1 or 2, characterized by the fact that the sliding guide (11) is designed to be free of stops and / or steps or jumps.

4. Sanitary insertion unit according to one of claims 1 to 3, characterized by the fact that a slope of the ramp (12) is dimensioned such that the sliding guide (11) is self-locking, and / or that the ramp (12) forms a section of a preferably circumferential guide track (36).

5. Sanitary insertion unit according to one of claims 1 to 4, characterized by the fact thata detent mechanism, in particular with at least one ball detent, is designed with which the actuating element (10) and / or the adjusting element (9) can be fixed in different angular positions, in particular wherein the detent mechanism is designed on the sliding guide (11).

6. Sanitary insertion unit according to one of claims 1 to 5, characterized by the fact that the chamfer (12) is formed on a housing part or an insert part.

7. Sanitary insertion unit according to one of claims 1 to 6, characterized by the fact that the actuating element (9) is rotatably and in particular axially rotatably mounted on the housing part or insert part.

8. Sanitary insertion unit according to one of claims 1 to 6, characterized by the fact that the actuating element (9) is guided in a rotationally fixed but axially displaceable manner on the housing part or insert part.

9. Sanitary insertion unit according to one of claims 1 to 8, characterized by the fact thatthe sliding guide (11) has at least one guide projection (35), preferably at least two guide projections (35), which run on the ramp (12), in particular wherein the guide projection(s) running on the ramp (12) is connected to the actuating element (9) in a rotationally fixed, in particular rigid, manner.

10. Sanitary insertion unit according to one of claims 1 to 9, characterized by the fact that the actuating element (9) is axially movable and / or rotationally fixed to the actuating element (10), in particular axially guided on the actuating element (10).

11. Sanitary insertion unit according to one of claims 1 to 10, characterized by the fact that the sliding guide (11) forms a one-sided guide, in particular wherein the actuating element (9) is pressed against the one-sided guide by an inflow water pressure and / or at least a pressure element, in particular a compression spring 12. Sanitary insertion unit according to one of claims 1 to 11, characterized by the fact thatthe sliding guide (11) is formed by a thread (5) or a screw connection between the actuating element (10) and the adjusting element (9).

13. Sanitary insertion unit according to one of claims 1 to 12, characterized by the fact that the functional unit is a flow rate controller, and that a control profile of the flow rate controller is formed on the actuating element (9) which interacts with an elastic control body (40) for flow rate control; or that the functional unit is a throttle, wherein the actuating element (9) sets an opening cross-section of the throttle.

14. Sanitary insertion unit according to one of claims 1 to 13, characterized by the fact that The opening cross-section of the flow opening (8) can be changed with the actuating element (9).

15. Sanitary insertion unit according to one of claims 1 to 14, characterized by the fact thatthe or a guide track (36) has plateau sections (40) in which a rotation of the actuating element (10) does not cause axial adjustment of the actuating element (9) and / or that the or a guide track (36) has at least one detent recess for at least one or the at least one guide projection (35) which develops a detent resistance with the at least one guide projection (35) acting against a rotation of the actuating element (9).

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