Ventilated jet regulator

Abstract

The invention relates to a jet regulator comprising a splitting stage (2), a mixing stage (3), and an outlet stage (4); the mixing stage (3) is arranged downstream of the splitting stage (4) and has at least one ventilation opening (5); the outlet stage (4) is arranged downstream of the mixing stage (3) and has outlet channels (6) which taper in the flow direction, wherein the outlet channels (6) are designed to generate a set of non-converging individual jets.

Description

[0001] AERATED AERATOR

[0002] The invention relates to a sanitary insert (1). Such inserts can be designed for insertion into a water outlet of a sanitary fitting. One example is the jet regulator.

[0003] The sanitary insert parts known from practice have at least one splitter stage (2) and one mixing stage (3) and one outlet stage (4), wherein the mixing stage is arranged downstream of the splitter stage (2) and has at least one ventilation opening (5), wherein the outlet stage (4) is arranged downstream of the mixing stage (3) and has outlet channels (6) tapering in the direction of flow.

[0004] The splitter stage (2) can, for example, have the task of decoupling flow conditions within the insert part (1) from the conditions of installation of the insert part (1). The mixing stage (3) can, for example, serve to admix air, whereby air intake can be achieved by negative pressure on an outflow side (7) of the splitter stage (2). Inserts (8) can promote the mixing of air and water in the mixing stage (3) before the water-air mixture exits the outlet stage (4) with the desired jet quality.

[0005] The invention is based on the object of increasing the variety of available insert parts.

[0006] To achieve this object, the features of claim 1 are provided according to the invention. In particular, to achieve the stated object, the invention proposes, for an insert part (1) of the type described above, that the outlet channels (6) are designed to generate a set of non-converging individual jets. This can be achieved, for example, by adjusting and spacing the outlet channels (6). It is thus possible to generate a jet pattern of individual, aerated jets.

[0007] Alternatively or additionally, the invention proposes the features of the independent claim to achieve the stated object. In particular, to achieve the stated object, according to the invention, for an insert part (1) of the type described above, wherein the outlet channels each form an inlet opening (9) and an outlet opening (10), it is proposed that for each outlet channel (6), a projection (27) of the inlet opening (9) (preferably along a longitudinal direction) onto a plane (11) of the outlet opening (10) encloses the outlet opening (10). The proposed outlet structure (4) can thus be produced using a simple injection molding process, whereby undercuts that complicate demolding can be avoided.

[0008] In an advantageous embodiment, it can be provided that a side wall (15) forming the at least one ventilation opening (5) is connected to the disassembly stage (2) via a preferably form-fitting interface (27). This allows for a simple tool structure for injection molding production. Furthermore, several sub-components (mixing stage, discharge stage) can be connected to a uniform disassembly stage, or conversely, several disassembly stages can be connected to a uniform sub-component.

[0009] In an advantageous embodiment, it can be provided that a length (12) of the outlet channels (6) is each at least twice as large as a clear width (13) of the respective outlet channel (6). This enables good guidance and good bundling of each individual jet. In an advantageous embodiment, it can be provided that a smallest distance (14) between two adjacent outlet channels (6) at the level of the outlet openings (10) is selected so large that the individual jets emerging in each case do not converge. This allows for high space utilization.

[0010] In an advantageous embodiment, it can be provided that the total surface areas of the outlet openings (6) is greater than, in particular at least twice or 2.5 times as large as, the total surface areas of the disintegrator openings (24) of the disintegrator stage (2). This avoids backflow at high flow rates, which could lead to water escaping through the ventilation openings (5).

[0011] In an advantageous embodiment, the outlet structure (4) can be made of a homogeneous material, in particular of a hard plastic and / or a soft plastic. For example, the material can be designed with a Shore A hardness of more than 70, more than 80, or 90 or more. This enables cost-effective production. For example, the outlet structure (4) can be formed integrally with a side wall (15) of the mixing stage (3), for example, the aforementioned one.

[0012] In an advantageous embodiment, it can be provided that a reducing stage (16) is arranged upstream of the splitter stage (2). In this way, excessively high flow rates, at which an undesirable backflow could occur in the mixing stage (3), can be avoided. The reducing stage (16) can be designed as a flow limiter (17) (e.g. constant flow rate over a working range of the operating pressure, e.g. in a manner known per se with a pressure-dependently deformed control body (25) and control profile (26)). In an advantageous embodiment, it can be provided that an attachment sieve (18) is arranged upstream of the splitter stage (2). In this way, contamination of the interior of the insert part (1) and the associated functional impairments can be avoided or reduced.

[0013] In an advantageous embodiment, the outlet channels (6) can each be provided with an inlet funnel (19). This reduces flow resistance at the level of an inlet opening (9) of the outlet channels (6), for example, the aforementioned one. This can again help to reduce or prevent backflow. The inlet funnel (19) is preferably concave, similar to a trumpet funnel. This avoids sharp edges at the inlet opening (9).

[0014] In an advantageous embodiment, the inlet funnels (19) at each outlet channel (6) can have a ring width (20) that is greater than a distance (21) between the respective inlet funnel (19) and an inlet funnel (19) of the next adjacent outlet channel (6). Thus, impact sections (22) perpendicular to the flow direction between the inlet openings (19) can be designed as small as possible. This helps to reduce backflow in the mixing stage (3).

[0015] In an advantageous embodiment, the outlet channels (6) can be provided with a sleeve-like configuration (like a sleeve (23)) on the downstream side. This allows for a particularly simple structure that can be easily manufactured by injection molding.

[0016] To explain the invention, the

[0017] Figure 1 shows a sanitary insert according to the invention in a three-dimensional oblique view from the inflow side, Figure 2 shows the insert from Fig. 1 in an axial section,

[0018] Figure 3 is a view of the downstream side of the splitter stage of the insert part from Figure 1,

[0019] Figure 4 is a view of the downstream side of the outlet stage of the insert part from Figure 1,

[0020] Figure 5 is a view of the inflow side of the outlet stage of the insert part from Figure 1,

[0021] Figure 6 shows the insert part from Fig. 1 in a three-dimensional oblique view of the downstream side,

[0022] Figure 7 shows an axial section through another insert part according to the invention and

[0023] Figure 8 is a view of the inflow side of the outlet stage of the insert part from Figure 5 .

[0024] For an explanation of the figures, reference is made to the claims provided with reference symbols and the above statements.

[0025] / List of reference symbols

[0026] List of reference symbols

[0027] 1 insert part

[0028] 2nd disassembly stage

[0029] 3 mixing levels

[0030] 4 outlet stage

[0031] 5 Ventilation opening

[0032] 6 Outlet channel

[0033] 7 Downstream side of 2

[0034] 8 Insert

[0035] 9 Entrance opening

[0036] 10 Exit opening

[0037] 11 level of 10

[0038] 12 length of 6

[0039] 13 clear width of 6

[0040] 14 Distance between adjacent outlet openings

[0041] 15 Side wall

[0042] 16 reduction stage

[0043] 17 Flow restrictor

[0044] 18 Front screen

[0045] 19 Inlet funnel

[0046] 20 ring width of 19

[0047] 21 Distance between inlet funnels

[0048] 22 Impact section

[0049] 23 sleeve

[0050] 24 Cutting opening

[0051] 25 control bodies

[0052] 26 Control profile

[0053] 27 Projection

[0054] / Claims

Claims

Claims 1. Sanitary insert part (1), in particular a jet regulator, with a splitter stage (2) and a mixing stage (3) and an outlet stage (4), wherein the mixing stage (3) is arranged downstream of the splitter stage (2) and has at least one ventilation opening (5), wherein the outlet stage (4) is arranged downstream of the mixing stage (3) and has outlet channels (6) tapering in the flow direction, characterized in that the outlet channels (6) are designed to generate a set of non-converging individual jets.

2. Sanitary insert (1) according to the preamble of claim 1 or according to claim 1, wherein the outlet channels (6) each form an inlet opening (9) and an outlet opening (10), characterized in that for each outlet channel (6) a projection (27) of the inlet opening (9) on a plane (11) of the outlet opening (10) encloses the outlet opening (10).

3. Sanitary insert part (1) according to one of the preceding claims, characterized in that a side wall (15) forming the at least one ventilation opening (5) is connected to the dismantling stage (2) via a preferably form-fitting interface (27).

4. Sanitary insert (1) according to one of the preceding claims, characterized in that a length (12) of the outlet channels (6) is at least twice as large as a clear width (13) of the respective outlet channel (6) .

5. Sanitary insert (1) according to one of the preceding claims, characterized in that a distance (14) between two adjacent outlet channels (6) at the level of the outlet openings (10) is selected to be large enough that individual jets emerging in each case do not converge.

6. Sanitary insert (1) according to one of the preceding Claims, characterized in that a sum of surface areas of the outlet openings (10) is greater than, in particular at least 2 times or 2.5 times as large as, a sum of surface areas of disintegrating openings (24) of the disintegrating stage (2).

7. Sanitary insert (1) according to one of the preceding claims, characterized in that the outlet structure is made of a homogeneous material, in particular of a hard plastic and / or a soft plastic, preferably with a Shore A hardness of more than 70 or more than 80 or 90 or more.

8. Sanitary insert (1) according to one of the preceding claims, characterized in that the dismantling stage (2) a reduction stage (16) is connected upstream.

9. Sanitary insert (1) according to one of the preceding claims, characterized in that an attachment sieve (18) is arranged upstream of the separating stage (2).

10. Sanitary insert (1) according to one of the preceding claims, characterized in that the outlet channels (6) are each provided with a preferably concave inlet funnel (19).

11. Sanitary insert (1) according to one of the preceding claims, characterized in that the inlet funnels (19) at each outlet channel (6) have a ring width (20) which is greater than a distance (21) of the respective inlet funnel (19) to an inlet funnel (19) of the next adjacent outlet channel (6).

12. Sanitary insert (1) according to one of the preceding claims, characterized in that the outlet channels (6) protrude in a sleeve-like manner on the downstream side. / Summary

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