Sanitary insert part and use of such an insert part

Abstract

A sanitary insert part (1), including a main body (2) which provides a radially oriented outer surface (3), and an elastic regulating body (4), wherein the base body (2) forms a regulating core (5) having a regulating profile (6) and a regulating gap (7) is formed between the regulating body (4) and the regulating profile (6), such that an opening cross section (8) of the regulating gap (7) can be varied by a pressure-dependent loading of the regulating body (4), characterized in that the main body (2) forms a radially outwardly open receptacle (9), the regulating body (4) is arranged in the receptacle (9), and an external diameter (10) of the regulating body (2) is matched to an outer diameter (11) of the outer surface (3).

Claims

1. A sanitary insert part (1), comprising: a main body (2) which provides a radially oriented outer surface (3), and forming a regulator core (5) with a regulating profile (6); an elastic regulating body (4); a sealing element (15), which is elastically deformable radially inward, adjacent to the outer surface (3); a regulating gap (7) formed between the regulating body (4) and the regulating profile (6) such that an opening cross section (8) of the regulating gap (7) is variable by a pressure-dependent loading of the regulating body (4); the main body (2) forms a radially outwardly open receptacle (9), the regulating body (4) is arranged in the receptacle (9), and an outer diameter (10) of the regulating body (2) is matched to an outer diameter (11) of the outer surface (3).

2. The sanitary insert part (1) as claimed in claim 1, wherein the outer diameter (10) of the regulating body (4) is smaller than the outer diameter (11) of the outer surface (3).

3. The sanitary insert part (1) as claimed in claim 1, wherein the receptacle (9) is radially outwardly open in an axial portion (12) taken up by the regulating body (4).

4. The sanitary insert part (1) as claimed in claim 1, wherein the outer surface (3) is formed on a wall (13) of the main body (2), and the outer diameter (10) of the regulating body (4) is larger than an inner diameter (14) of the wall.

5. The sanitary insert part (1) as claimed in claim 1, wherein the outer diameter (11) of the outer surface (3) defines a maximum radial outer dimension of the main body (2).

6. The sanitary insert part (1) as claimed in claim 1, wherein a cross section of the main body (2) has a round main shape.

7. The sanitary insert part (1) as claimed in claim 1, wherein the regulating body (4) is annular.

8. The sanitary insert part (1) as claimed in claim 1, wherein the main body (2) is assembled from at least two parts (17, 18) that are connected to one another in at least one of a form-fitting, force-fitting, or integrally bonded manner so as not to be releasable without being destroyed.

9. The sanitary insert part (1) as claimed in claim 8, further comprising a connecting portion (19) between the at least two parts (17, 18) that extends through the regulating body (5).

10. The sanitary insert part (1) as claimed in claim 8, wherein the at least two parts (17, 18) have outer dimensions that describe a common cylinder surface.

11. The sanitary insert part (1) as claimed in claim 1, further comprising an at least partially axially acting sealing surface (22) formed on an outflow side (20).

12. The sanitary insert part (1) as claimed in claim 1, wherein an outer diameter (11) of the outer surface (3) is 8 mm or less.

13. A method of controlling a flow, comprising: inserting the sanitary insert part as claimed in claim 1, into a tubular portion (23) that carries a water flow, and forming a radially outer closure of the receptacle (9) of the regulating body (4) using an inner wall (24) of the tubular portion (23).

14. The method as claimed in claim 13, further comprising sealing the outflow side with an at least partially axially acting sealing surface (22) between the insert part (1) and the tubular portion (23) provides a seal on the outflow side with respect to the receptacle (9), with the sealing surface (22) lying against a radially inwardly protruding collar (25) on the tubular portion (23).

15. The sanitary insert part (1) as claimed in claim 1, wherein the outer diameter (10) of the regulating body (4) is at most 20% smaller than the outer diameter (11) of the outer surface (3).

16. The sanitary insert part (1) as claimed in claim 1, wherein the sealing element (15) comprises an integrally formed sealing lip (16).

17. The sanitary insert part (1) as claimed in claim 1, wherein the main body (2) is formed integrally, with the receptacle (9) being at least partially open axially on an end side.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described in more detail with reference to an exemplary embodiment, but is not limited to the exemplary embodiment. Further exemplary embodiments emerge from a combination of the features of individual claims or a plurality of claims with one another and/or with individual features or a plurality of features of the exemplary embodiment.

(2) In the figures:

(3) FIG. 1 shows a sanitary insert part according to the invention in a three-dimensional oblique view from the outside,

(4) FIG. 2 shows the insert part according to FIG. 1 in a top view of an inflow side,

(5) FIG. 3 shows the insert part according to FIGS. 1 and 2 in a longitudinal section,

(6) FIG. 4 shows the insert part according to FIGS. 1 to 3 in an exploded illustration,

(7) FIG. 5 shows an installation situation of the insert part according to FIGS. 1 to 4 in a tubular portion for explaining the use according to the invention,

(8) FIG. 6 shows three views of a further insert part according to the invention, and

(9) FIG. 7 shows three views of a further insert part according to the invention.

DETAILED DESCRIPTION

(10) FIGS. 1 to 4 show a sanitary insert part 1 according to the invention in various illustrations. The insert part 1 has a substantially cylindrical main body 2 which has a radially oriented outer surface 3. The main body 2 furthermore has an encircling receptacle 9 into which an approximately O-ring-shaped regulating body 4 is inserted. The receptacle 9 is designed to be radially outwardly open at least in an axial portion 12 taken up by the regulating body 4.

(11) The outer diameter 10 of the regulating body 4 is matched here to the outer diameter 11 of the outer surface 3. This means that the outer diameter 10 of the regulating body 4 is preferably smaller than the outer diameter 11 of the outer surface. In particular smaller by at most 20%, preferably at most 10%, i.e. as close as possible to, but below, the outer diameter of the regulating body 2.

(12) The insert part 1 has an inflow side 21 through which water flows into the insert part 1, and an outflow side 20 through which water exits again.

(13) As can be seen in particular in FIG. 3, the main body 2 has a regulator core 5 which is arranged coaxially in the center of the main body 2. The regulator core 5 has, radially on the outside, a regulator profile 6 which, together with the regulating body 4 arranged coaxially with respect to said regulator profile 6, defines a regulating gap 7.

(14) The regulating body 4 is comprised of an elastic material, and therefore the opening cross section 8 of the regulating gap 7 can be changed by a pressure-dependent loading of the regulating body 4.

(15) In the example, the main body 2 is of two-part design, and therefore installation can take place more simply. In particular, the two parts can be connected in a form-fitting, force-fitting and/or integrally bonded manner, i.e. in general so as not to be releasable without being destroyed. The regulating body 4, in particular if it is annular, can therefore be simply placed between the parts and held there in its use position. In the example, a first part 17 is connected to a second part 18 via a connecting portion 19 which reaches axially through the regulating body 5. The second part 18 here has latching elements 26 which engage in the first part 17 and therefore produce a releasable connection. Alternatively or additionally, the latching elements 26 can be formed on the first part 17.

(16) The outer surface 3 which has already been described can be formed here on the first part 17 and/or the second part 18. In the present exemplary embodiment, the two outer surfaces 3 are aligned and therefore form a common, two-part outer surface 3 with a shape of a cylinder surface.

(17) In FIG. 5, a sanitary insert part 1 according to the invention has now been inserted into a tubular portion 23. The inner wall 24 of the tubular portion 23 serves as a radially outer closure of the receptacle 9 of the regulating body 4. In the installation situation, the receptacle 9 in which the regulating body 4 is arranged is therefore closed radially on the outer side by the receiving tubular portion 23. An additional construction space for a radial closure around the regulating body 4 by a housing of the insert part 1, which would radially enlarge the insert part 1 or would require a disadvantageous reduction in size of the regulating body 4, can therefore be avoided. The receiving tubular portion 23 therefore takes on a housing-forming function for the closure of the regulating body 4. In practice, the tubular portion 23 is, for example, part of a sanitary fitting, a pipe system or the like.

(18) In the example, the tubular portion 23 has a partially axially acting sealing surface 22 which provides a seal between the insert part 1 and the tubular portion 23 on the outflow side with respect to the receptacle 9. It is of advantage here that flow on the outer side past the regulating gap 7, which would unfavorably impair the regulating behavior, can be avoided. In particular, it can be provided here that the sealing surface 22 lies against a radially inwardly protruding collar 25 on the tubular portion 23. The collar 25 keeps the insert part 1 in its place in the portion 23 even in the event of high pressures. An automatic reinforcement of the sealing at the sealing surface 22 can therefore be achieved.

(19) On the inflow side 21, the insert part 1 has a sealing element 15 which also prevents flow on the outer side past the regulating gap 7 on the inflow side 21. The sealing element 15 is formed by a sealing lip 16 which protrudes radially over the outer surface 3 and interacts with the inner diameter 14 of the portion 23.

(20) FIG. 6 shows, at the bottom on the right in the clockwise direction, a view from below, i.e. of the outflow side 20, at the bottom on the left a view from above, i.e. of the inflow side 21, and at the top on the left an axial section along the intersecting plane S-S. Components and functional units which are identical or similar structurally and/or functionally to the preceding exemplary embodiments are denoted by the same reference signs and are not described once again separately. The statements with regard to FIGS. 1 to 5 therefore apply correspondingly to FIG. 6. In particular, the insert part according to FIG. 6 can be placed into the tubular portion 23 of FIG. 5.

(21) The exemplary embodiment according to FIG. 6 differs from the preceding exemplary embodiment at least in that the main body 3 is formed in one part or integrally and that the receptacle 9 is partially open on one side in the axial direction, in particular counter to a direction of flow.

(22) Instead of the latching elements 26, the main body 2 has holding elements 27 whichas here in the examplecan be tongue-shaped and which axially secure the regulating body 4 by, for example, extending through and behind the latter, as shown.

(23) The sealing element 15 already described with respect to the preceding exemplary embodimentalso designed here by way of example as an encircling sealing lip 16is arranged here at the outflow-side end of the main body 2, i.e. behind the regulating body 4 in the direction of flow. The sealing element provides a seal and securely holds the main body 3 in the tubular portion 23 against falling out counter to the direction of flow. Via a here by way of example pin-shaped removal element 28, the insert part 1 can be inserted and/or can be removed with a tool, for example with pliers.

(24) The outer surface 3 is therefore designed as a simple, cohesive cylinder surface area below the receptacle 9.

(25) FIG. 7 shows at the bottom on the right in the clockwise direction a view from below, i.e. of the outflow side 20, at the bottom on the left a view from above, i.e. of the inflow side 21, and at the top on the left an axial section along the intersecting plane S-S. Components and functional units which are identical or similar structurally and/or functionally to the preceding exemplary embodiments are denoted by the same reference signs and are not described once again separately. The explanations with regard to FIGS. 1 to 6 therefore apply correspondingly to FIG. 7. In particular, the insert part according to FIG. 7 can be placed into the tubular portion 23 of FIG. 5.

(26) Also in this exemplary embodiment, the main body 3 is formed as a single part or integrally. The receptacle 9 is now completely formed so as to be open on one side in the axial direction such that the regulating body 4 can simply be inserted into the receptacle 9.

(27) The regulating body 4and possibly also the main body 3is/are secured axially here in another manner, for example by means (not illustrated specifically) in the tubular portion 23, such as a securing ring, a securing nut, radial screws or pins or the like.

LIST OF REFERENCE SIGNS

(28) 1 Sanitary insert part 2 Main body 3 Outer surface 4 Regulating body 5 Regulator core 6 Regulating profile 7 Regulating gap 8 Opening cross section 9 Receptacle 10 Outer diameter of the regulating body 11 Outer diameter of the outer surface 12 Axial portion 13 Wall 14 Inner diameter 15 Sealing element 16 Sealing lip 17 First part 18 Second part 19 Connecting portion 20 Outflow side 21 Inflow side 22 Sealing surface 23 Tubular portion 24 Inner wall 25 Collar 26 Latching element 27 Holding element 28 Removal element