Sanitary insert

Abstract

The invention relates to a sanitary insert (1), in particular an aerator (2), comprising a thread (3), an outer face (4), an interior (5), a wall (6) having at least one ventilation opening (7) that connects the outer face (4) to the interior (5), and an outflow face (8), wherein the sanitary insert (1) has at least one ventilation channel (11) that connects the outflow face (8) and the ventilation opening (7), characterized in that at least some portions of the ventilation channel (11) pass through an axial area (12) occupied by the thread on the exterior (4) of the sanitary insert (4).

Description

[0001] PC 25 0791 C 5 . August 2025

[0002] Sanitary insert

[0003] The invention relates to a sanitary insert comprising a thread, an outer surface, an inner surface, a wall, wherein the wall has at least one ventilation opening, the ventilation opening connecting the outer surface to the inner surface, and an outflow side, wherein the sanitary insert has at least one ventilation passage, the ventilation passage connecting the outflow side and the ventilation opening. The sanitary insert can, in particular, be an aerator.

[0004] The object of the invention is to improve sanitary inserts.

[0005] To solve the aforementioned problem, the features of claim 1 are provided according to the invention. In particular, it is thus proposed that, in a sanitary insert of the type described above, the ventilation path on the outside of the sanitary insert runs, at least section by section, in an axial area occupied by the thread. This makes it possible, for example, for air from the outflow side to enter the interior of the sanitary insert along the ventilation path and be available there for mixing water or another fluid. The ventilation path on the outside can advantageously create more space in the interior of the sanitary insert, so that a jet with a larger diameter can be created, compared to sanitary inserts in which the ventilation path runs inside.The ventilation path can interrupt threads of the thread, allowing a direct connection for air from the outflow side to the ventilation opening along a ventilation path. The thread of the sanitary insert can be screwed into a PC 25 0791 C 2 / 16 5. August 2025.

[0006] The sanitary fitting must be suitable. The outside of the sanitary insert refers to the side where the thread is located. The inside of the sanitary insert comprises the space within the sanitary insert. The wall defines the sanitary insert radially and separates the inside from an outside space. The vent allows fluid flow, for example, air, from the outside into the inside of the sanitary insert. The air can flow along the vent path on the outside through the vent opening into the inside of the aerator. The outflow side can be characterized, for example, as the side of the sanitary insert from which water can flow out, taking into account the direction of flow. The direction of flow in the sanitary insert, for example, runs from a pre-filter to a jet diffuser.

[0007] The thread of the sanitary insert can be interrupted section by section from the ventilation path in axial areas.

[0008] In an advantageous design, the ventilation opening can be radially oriented. This can, for example, create a connection between the interior and exterior of the sanitary insert.

[0009] In an advantageous design, the ventilation path can be provided for, at least partially, within the thread. This can, for example, make it possible to guide air for venting a water jet within the thread without interrupting the thread.

[0010] In an advantageous design, the ventilation path may be open to the outside. This can, for example, ensure that the ventilation path is not covered and thus provides sufficient space for airflow. PC 25 0791 C 3 / 16 5. August 2025

[0011] In an advantageous design, the ventilation path can be designed so that its width at the narrowest point is no less than the width of the ventilation opening. Here, width refers to the circumference. This can, for example, ensure that the airflow can flow advantageously and unimpeded along the ventilation path without being slowed down at any constriction. The width and / or depth of the ventilation path can also be dimensioned so that no capillary action occurs along it. This has the advantage of preventing water from being drawn into the ventilation path.

[0012] In an advantageous design, the ventilation channel can be provided with a depth greater than the height of a thread pitch. This depth can be the distance from a thread trough to the bottom of the groove in the ventilation channel. This allows a significant amount of air to flow through the ventilation channel, ensuring the desired aeration of the water jet. Furthermore, this design can advantageously enable the thread pitch of the sanitary insert to perform a dual function. The thread pitch can thus be used to fasten the sanitary insert in the sanitary fitting and also provide a ventilation channel for the sanitary insert itself. A space can therefore be created within the thread of the sanitary insert that is not entirely occupied by the mating thread of the sanitary fitting, but instead provides additional space for the ventilation channel.Height and depth refer to radially measured height and depth.

[0013] In an advantageous embodiment, it can be provided, PC 25 0791 C 4 / 16 5 August 2025, that the ventilation opening is arranged at least partially outside an axial area occupied by the thread. This can, for example, make it possible to arrange the ventilation opening above the thread in the flow direction, and thus allow the water jet to be vented in the interior in the flow direction above the thread. Alternatively or additionally, it can be provided that the ventilation opening is arranged at least partially within an axial area occupied by the thread. This can, for example, make it possible to arrange the ventilation opening at the same level as the thread, and thus allow the water jet to be vented at that level, i.e., at that point in the jet path.

[0014] In an advantageous embodiment, the wall thickness of a housing part forming the outer surface can be reduced by the ventilation passage compared to the wall thickness of the housing part outside an axial area occupied by the thread. This can, for example, allow the ventilation passage to have a considerable depth and a correspondingly large volume of air to flow through it. In a region of the ventilation passage, the housing part with the reduced wall thickness can have a thickening to advantageously increase its stability.

[0015] In an advantageous design, the ventilation path may be designed so that the thread is interrupted in one direction along the flow direction through the sanitary insert. This can, for example, create a direct path from the downstream side, where the air enters the ventilation path, to the ventilation opening. An interruption of the thread is harmless for a possible screw fastening of the sanitary insert in a sanitary fitting. PC 25 0791 C 5 / 16 5 August 2025

[0016] In an advantageous design, the ventilation path can be designed so that it intersects at least one thread of the thread. This can, for example, achieve advantageous airflow through the thread. This design allows the ventilation path to be made particularly short. The shorter the ventilation path, the lower its flow resistance (assuming otherwise identical geometry). This is beneficial for air intake.

[0017] In an advantageous design, the ventilation path can be formed along one thread of the thread. This eliminates the need to interrupt the thread, as the air can flow along the thread to the ventilation opening.

[0018] For example, the ventilation path can be formed through the thread, for instance as an (enlarged) space at the root of the tooth or the valley of the thread.

[0019] In an advantageous design, the thread can have a thread depth that is deeper than the thread depth of a mating thread. This can, for example, create space for airflow, since the thread and the mating thread do not completely fill each other.

[0020] In an advantageous design, the ventilation channel can be arranged to run in a thread valley of the thread. This allows, for example, air to flow in the thread valley from the downstream side, where the air enters the ventilation channel, to the ventilation opening, where the air enters the interior of the sanitary fitting. Consequently, a tooth flank of the mating thread does not contact the thread valley of the thread PC 25 0791 C 6 / 16 5 August 2025, so that the ventilation channel is formed in the thread valley.

[0021] In an advantageous design, the insert can have a circular outer contour outside the at least one ventilation path, with a maximum cross-section (e.g., perpendicular to an insertion direction and / or a main flow direction). This allows for a particularly tight seal with a corresponding fitting. Water ingress between the insert and the fitting is thus reduced or even completely prevented.

[0022] To solve the aforementioned problem, the invention proposes a method for assembling and / or disassembling the previously described sanitary insert, wherein at least one finger of an assembly part is inserted into the ventilation passage to apply torque to the sanitary insert. This makes it possible, for example, to easily and securely install the sanitary insert into a sanitary fitting. Naturally, the sanitary insert can also be disassembled using this method.

[0023] In a further advantageous embodiment of the method, it can be provided that at least one finger is inserted into an axial area occupied by the thread. This can, for example, simplify assembly and / or disassembly.

[0024] The invention will now be described in more detail with reference to an exemplary embodiment, but is not limited to this embodiment. Further exemplary embodiments result from combining the features of one or more claims with each other and / or with one or more features of the exemplary embodiment. PC 25 0791 C 7 / 16 5 August 2025

[0025] They show

[0026] Fig. 1 A sanitary fitting in perspective view from an inflow side,

[0027] Fig. 2 shows the sanitary insert in perspective view from an outflow side,

[0028] Fig. 3 shows the sanitary insert in a side view,

[0029] Fig. 4 shows the sanitary insert in perspective.

[0030] Sectional view

[0031] Fig. 5 shows the sanitary insert in a side sectional view,

[0032] Fig. 6 shows the sanitary insert in perspective view with empty interior space,

[0033] Fig. 7 shows the sanitary insert from Fig. 5 in a side sectional view,

[0034] Fig. 8 shows the sanitary insert in a lateral sectional view from the inflow side,

[0035] Fig. 9 is a detail view from Fig. 8.

[0036] Fig. 10 shows a sectional view of a sanitary thread

[0037] Insert part from Fig. 7,

[0038] Fig. 11 shows a perspective view of a sanitary insert according to the invention.

[0039] Fig. 12 is a perspective sectional view of the PC 25 0791 C 8 / 16 5 . August 2025 sanitary insert from Fig. 11 and

[0040] Fig. 13 shows a sectional view of a thread of the sanitary insert part from Fig. 11-12.

[0041] In the illustrated embodiment, the sanitary insert 1 is an aerator 2. It comprises a thread 3, an outer surface 4, and an inner surface 5. The sanitary insert 1 also includes a wall 6, the wall 6 having two ventilation openings 7 that connect the outer surface 4 with the inner surface 5 of the sanitary insert 1. An outflow side 8 of the sanitary insert 1 is the side at which water or another fluid exits the sanitary insert 1 during operation. An inflow side 9 is opposite the outflow side 8. A flow direction 10 for water runs from the inflow side 9 towards the outflow side 8. The sanitary insert 1 has two ventilation channels 11, these ventilation channels 11 connecting the outflow side 8 and the ventilation openings 7. The connection allows air to flow along the ventilation paths 11 for the ventilation of a water jet in the sanitary insertion part 1.The ventilation channels 11 run along the outside 4 of the sanitary insert 1 in an axial area 12 that is at least partially occupied by the thread 3. Air can thus flow along the ventilation channels 11 against the direction of water flow 10 through the ventilation openings 7 into the interior 5 of the sanitary insert 1.

[0042] The ventilation openings 7 of the sanitary insert 1 are radially oriented. They thus allow a connection between the outside 4 and the interior 5.

[0043] The ventilation passage 11 can alternatively or additionally also run at least partially within the thread 3. The ventilation passage 11 is open to the outside and has a width 13, PC 25 0791 C 9 / 16 5. August 2025, which at its narrowest point is not less than a width 14 of the ventilation opening 7.

[0044] The ventilation path 11 has a depth 15 which is greater than a height 16 of a thread 17 of the thread 3 .

[0045] The ventilation openings 7 are arranged at least partially outside the axial area 12 occupied by the thread 3. In an embodiment not shown, the ventilation openings 7 are arranged at least partially within the axial area 12 occupied by the thread 3.

[0046] Fig. 9 shows how the wall thickness 18 of a housing part 19 forming the outer surface 4 is reduced by the ventilation passage 11 compared to the wall thickness 20 of the housing part 21 outside the axial area 12 occupied by the thread 3.

[0047] The ventilation path 11 interrupts the thread 3 in a direction 22 along a flow direction 10 through the sanitary insert part 1 .

[0048] The ventilation path 11 intersects at least one thread 17 of the thread 3 .

[0049] Figures 11-13 show the sanitary insert 1, in which the ventilation path 11 is formed along one thread 17 of the thread 3. Air can enter the ventilation path 11 at the outflow side 8 of the sanitary insert 1 shown in Figures 11-13 and then flow along the thread valley 24 to the ventilation opening 7. The ventilation opening 7 is, as shown in Figures 11 and 12, a hole in the wall 6 of the sanitary insert 1. The ventilation opening 7 is located at one end of the thread 3. PC 25 0791 C 10 / 16 5 August 2025

[0050] Thread 3 has a thread depth of 23, which is deeper than the thread depth of a mating thread.

[0051] Fig. 13 shows in a detailed view that the ventilation path 11 runs in a thread valley 24 of the thread 3. Fig. 13 also shows that in the region of the thread valley 24, where the ventilation path 11 runs, the wall thickness 18 within the axial region 12 is reduced compared to the wall thickness 20 outside the axial region 12.

[0052] For the assembly and / or disassembly of the sanitary insert 1, at least one finger of an assembly part is inserted into the ventilation passage 11 to apply a torque to the sanitary insert 1.

[0053] In this process, at least one finger is inserted into an axial area 12 occupied by the thread 3 (not shown).

[0054] The sanitary insert 1 shown in Fig. 1 comprises a sealing ring 25, which is held by a front screen 26. The flow direction 10 is indicated by the arrow. On the outflow side 8 of the sanitary insert 1, it has a crown structure 26, wherein the individual crown projections 27 are connected to each other by means of a circumferential rim 28, so that an overall circular outer contour with a maximum cross-section (i.e., a cross-section with a maximum diameter and / or a maximum cross-sectional area) is formed outside the ventilation channels 11. This has the advantage that no water can penetrate the crown structure. On the outflow side 8, the sanitary insert 1 has an outlet structure 29 for breaking up a water jet.

[0055] Fig. 5 shows the sanitary insert 1 in a PC 25 0791 C 11 / 16 5 August 2025

[0056] Sectional view. Air enters the interior 5 of the sanitary insert 1 via the ventilation channels 11 and the ventilation openings 7. The mixing stage 30 formed there, schematically represented as a rectangle, mixes air and water in the interior 5 of the sanitary insert 1.

[0057] The section through the sanitary insert 1 shown in Fig. 8 shows that, in this embodiment, the wall thickness 18 of the housing part 19, which forms the ventilation passage 11, is reduced compared to the wall thickness 20 of the housing part 21. To ensure stability, the wall thickness 18 is increased in the area of ​​the ventilation passage 11 towards the interior 5. This increased thickness can also serve as a bearing surface for a disassembly step.

[0058] Fig. 13 shows a detailed view of the thread 3. In this embodiment, the thread valleys 24 serve as ventilation passages 11. When the sanitary insert 1 is screwed into a sanitary fitting, the tooth flanks of a mating thread do not engage into the thread valleys 24, so that enough space remains for the ventilation passage 11.

[0059] A sanitary insert 1 is proposed, in particular an aerator 2, comprising a thread 3, an outer surface 4, an inner surface 5, a wall 6, wherein the wall 6 has at least one ventilation opening 7, wherein the ventilation opening 7 connects the outer surface 4 with the inner surface 5, an outflow side 8, wherein the sanitary insert 1 has at least one ventilation passage 11, wherein the ventilation passage 11 connects the outflow side 8 and the ventilation opening 7, characterized in that the ventilation passage 11 runs at least sectionally in an axial area 12 occupied by the thread 3 on the outer surface 4 of the sanitary insert 1.

[0060] / Reference number list PC 25 0791 C 12 / 16 5 August 2025

[0061] Reference symbol list

[0062] 1 sanitary insert

[0063] 2 aerators

[0064] 3 threads

[0065] 4 Outside

[0066] 5 Interior

[0067] 6 wall

[0068] 7 Ventilation opening

[0069] 8. Outflow side

[0070] 9 Inflow side

[0071] 10 Flow direction

[0072] 11 Ventilation path

[0073] 12 Axial area

[0074] 13 Width of the ventilation path

[0075] 14 Width of the ventilation opening

[0076] 15 Depth of the ventilation path

[0077] 16 Height of the thread

[0078] 17 threads

[0079] 18 wall thickness

[0080] 19 Housing part

[0081] 20 wall thickness

[0082] 21 Housing part

[0083] 22 direction

[0084] 23 Thread depth

[0085] 24 thread valley

[0086] 25 sealing ring

[0087] 26 crown structure

[0088] 27 crown lead

[0089] 28 surrounding border

[0090] 29 Phase-out structure

[0091] 30 mixing stage

[0092] 31 Thickening

[0093] / Claims

Claims

PC 25 0791 C 13 / 16 August 5, 2025 Claims 1. Sanitary insert (1) , in particular aerator (2) , comprising: - a thread (3) , - an outside (4) , - an interior space (5) , - a wall (6) , wherein the wall (6) has at least one ventilation opening (7), wherein the ventilation opening (7) connects the outside (4) with the interior (5), - an outflow side (8) , wherein - the sanitary insert part (1) has at least one ventilation passage (11), wherein the ventilation passage (11) connects the outflow side (8) and the ventilation opening (7), characterized in that the ventilation passage (11) runs at least section by section on the outside (4) of the sanitary insert part (1) in an axial area (12) occupied by the thread (3).

2. Sanitary insert (1) according to claim 1, characterized in that the ventilation opening (7) is radially oriented.

3. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation path (11) at least partially runs in the thread (3) 4. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation path (11) is designed to be open to the outside world.

5. Sanitary insert according to one of the preceding PC 25 0791 C 14 / 16 August 5, 2025 Claims, characterized in that the ventilation passage (11) has a width (13) which at its narrowest point is not less than a width (14) of the ventilation opening (7).

6. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation path (11) has a depth (15) that is greater than a height (16) of a thread (17) of the thread (3).

7. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation opening (7) is arranged at least partially outside and / or at least partially inside the axial area (12) occupied by the thread (3).

8. Sanitary insert (1) according to one of the preceding claims, characterized in that a wall thickness (18) of a housing part (19) forming the outside (4) through the ventilation passage (11) is reduced compared to a wall thickness (20) of the housing part (21) outside the axial area (12) occupied by the thread (3).

9. Sanitary insert (1) according to claim 1, characterized in that the ventilation path (11) interrupts the thread (3) in a direction (22) along a flow direction (10) through the sanitary insert (1).

10. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation path (11) cuts at least one thread (17) of the thread (3).

11. Sanitary insert (3) according to one of the preceding claims, characterized in that the ventilation path (11) along a thread (17) , in particular by a thread (17) of the thread (3).

12. Sanitary insert (1) according to one of the preceding PC 25 0791 C 15 / 16 August 5, 2025 Claims, characterized in that the thread (3) has a thread depth (23) which is deeper than a thread depth of a mating thread.

13. Sanitary insert (1) according to one of the preceding claims, characterized in that the ventilation path (11) runs in a thread valley (24) of the thread (3).

14. Method for assembling and / or disassembling a sanitary insert (1) according to one of the preceding claims, wherein at least one finger of the assembly part is used to apply a torque to the sanitary insert (1) in the Ventilation path (11) is introduced.

15. Method according to claim 14, characterized in that the at least one finger is inserted into an axial area (12) occupied by the thread (3). / Summary

Images