DE202022101389U1 - Sanitary insertion arrangement - Google Patents

Abstract

Sanitary insert arrangement (1) with a thread (6) and a sealing ring (7), characterized in that a thickest point (8) of the sealing ring (7) is arranged outside of a thread area (9) radially occupied by the thread (6). is.

Description

The invention relates to a sanitary insert assembly with a thread and a sealing ring.

The invention further relates to a sanitary fitting with a fitting thread.

The invention also relates to a sanitary fitting with a sanitary insert arrangement.

Insertion arrangements of this type are known and usually include a jet regulator so that it can be detachably inserted into the outlet openings of sanitary fittings in order to form the jet pattern evenly.

In this case, it is necessary to provide at least one sealing ring on the inflow or outflow side of the thread in order to prevent water from escaping to the side of the insertion arrangement. Here, it has become common to provide a groove for holding this sealing ring next to one end of the thread. In order to ensure that the sealing ring is pressed between the insert arrangement and the sanitary fitting, a suitable, cylindrical counter-sealing surface is usually provided on the fitting, which interacts with a sealing surface on a sealing element of the jet regulator. This counter-sealing surface must be designed within low manufacturing tolerances in order to ensure adequate tightness between the fitting and the insertion arrangement. This increases the effort involved in fittings processing.

The object of the invention is to reduce the effort involved in machining fittings.

To solve the above problem, the features of claim 1 are provided according to the invention. In particular, in order to achieve the stated object in a sanitary insertion arrangement of the type described above, it is proposed according to the invention that a thickest point of the sealing ring is arranged outside of a thread area radially occupied by the thread.

Thus, the insert arrangement can also be used in fittings with non-cylindrical mating sealing surfaces.

The thickest point of the sealing ring can be characterized, for example, as that point or that area in which or in which a dimension in the axial direction is maximum.

Alternatively or additionally, it can be provided that one, for example the already mentioned, thickest point of a sealing ring is arranged radially outside or inside a thread crest and/or a thread root of the thread. It can thus be easily avoided that the thickest point is located radially in an area that is radially delimited by the crest of the thread and the root of the thread.

Alternatively or additionally, it can be provided that at least, in particular more than half of the cross-sectional area of the sealing ring is arranged outside of a thread area radially occupied by the thread.

Depending on the geometry of the fitting, different types of sealing rings can thus be used.

In general, it can be said that the invention enables less tight manufacturing tolerances and can thus reduce the reject rate during manufacture.

Alternatively or additionally, it can be provided that a groove base of the thread is arranged outside of a sealing ring area radially occupied by the sealing ring.

The diameter of the sealing ring can thus be very much smaller or very much larger than the diameter of the thread, so that the radially occupied areas of the sealing ring and the thread do not overlap.

In an advantageous embodiment, it can be provided that the sealing ring has a round and/or wedge-shaped and/or rectangular cross-sectional area.

The sealing ring can be an O-ring, for example. However, sealing rings with different geometries can also be used to meet the specific requirements of certain fittings.

In an advantageous embodiment, it can be provided that the sealing ring is or can be pressed at least partially in the axial direction against a counter-sealing surface of a fitting.

In addition or as an alternative, it can be provided that a sealing surface on the sealing ring has a curvature. The sealing surface is formed on the sealing ring and can be pressed against a counter-sealing surface of the fitting. The sealing surface of the sealing ring can thus be adapted to the specific requirements of certain fittings. A curved sealing surface has the advantage that a tight fit can also be achieved on inclined surfaces (one Provide counter-sealing surface) is achievable, the helix angle is subject to tolerances.

In an advantageous embodiment it can be provided that a screw sleeve is pronounced. The screw sleeve can be designed, for example, as a jet regulator housing or jet regulator carrier.

The insertion arrangement can thus be releasably inserted into a fitting.

In an advantageous embodiment it can be provided that the thread is an external thread. The insertion arrangement can thus be screwed in easily. Thus, a hidden type insertion arrangement can be formed.

For example, the thread can be formed on a housing of a jet regulator or on a screw sleeve. The screw sleeve can therefore be a screw-in sleeve, for example.

In an advantageous embodiment, it can be provided that the screw sleeve, for example a screw-in sleeve, is snapped, welded, pressed and/or produced in one piece with a jet regulator. Thus, an aerator can be part of the sanitary insert assembly to create an advantageous spray pattern.

Depending on the intended use, the aerator can be more or less detachably connected to the screw sleeve. In particular, the jet regulator can thus be easily removable or replaceable.

In an advantageous embodiment, it can be provided that the screw sleeve has, on its downstream end in the installed position, tool engagement surfaces that are pronounced in the axial and/or radial direction, in particular indentations and/or preferably arranged evenly distributed in the circumferential direction and/or two or at least three formations, which are so pronounced that they can interact with a tool in such a way that a screwing movement of the sanitary insertion arrangement can be driven by this. It is particularly advantageous here to form twelve indentations and/or formations.

The sanitary insert arrangement can thus be easily and detachably fixed in a sanitary fitting. The insertion arrangement can also be manufactured in such a way that no special tool has to be used for this purpose. For example, the insertion arrangement can be manufactured in such a way that an ordinary or standardized ring spanner can be used for assembly.

As an alternative or in addition, the features of the subordinate claim directed to a sanitary fitting with a fitting thread are provided according to the invention to achieve the stated object. In order to achieve the stated object in sanitary fittings of the type described above, it is proposed according to the invention in particular that an obliquely oriented counter-sealing surface is preferably directly connected to the fitting thread.

This simplifies fittings processing. The obliqueness of the counter-sealing surface can, for example, be freely selected within a tolerance range. Greater manufacturing tolerances can be permitted here.

In the case of an obliquely oriented counter-sealing surface, there is linear contact between the counter-sealing surface and the sealing element, with the contact line being able to run at different points on the sealing element depending on the incline of the counter-sealing surface.

In an advantageous embodiment, it can be provided that a valve thread area radially occupied by the valve thread is less than half the size of a sealing surface area radially occupied by a counter-sealing surface, for example the one already mentioned. The fitting thread range can be defined by the distance between root and head in the thread profile. The sealing surface area can be defined by the inner and outer boundary of the counter sealing surface in the radial direction.

Thus, the sealing rings used do not have to be precisely aligned with the diameter of a counter-sealing surface provided for them on the fitting. Even sealing rings with different cross-sectional areas can be used. For example, O-rings but also sealing rings with a wedge-shaped cross-sectional area can be used.

Alternatively or additionally, the features of the subordinate claim directed to a sanitary fitting with a sanitary insert arrangement are provided according to the invention to achieve the stated object. In particular, in order to achieve the stated object in sanitary fittings of the type described above, it is proposed according to the invention that a counter-sealing surface between the fitting and the sealing ring of the sanitary insert arrangement in the installed position is arranged downstream of a thread and is designed in such a way that the sealing ring presses the fitting on at least two contacted from each other axially and radially spaced points and / or is angled obliquely in the screwing that the diameter of the contact area in screwing direction varies, particularly where a chamfer is formed.

The size of the contact surface between the sealing ring and fitting can thus be varied by varying the contact pressure. A particularly tight seal can be achieved. Machining the fittings can be simplified by adding a chamfer. Radial tolerances can thus be compensated for by the axial positioning of the insertion arrangement, by screwing in the insertion arrangement more or less.

In an advantageous embodiment, it can be provided that the fitting has at least one, in particular cylindrical and/or conical, shoulder on the outflow side of the sealing ring, in particular of the chamfer.

The mating sealing surface can thus be protected during a polishing process, for example. Compression of the sealing ring when the insertion arrangement is pushed into the fitting can also be avoided, since the diameter of the cylindrical shoulder can be dimensioned to be sufficiently large. This makes it easier to insert and the threads can be found more easily. In addition, the circular shape of the downstream end of the insert arrangement remains even with occurring tolerances or deviations during grinding or polishing.

The invention allows a counter-sealing surface to be arranged at a distance from a casting path end of a melt flow when manufacturing a fitting, on which impurities concentrate and on which blowholes and similar irregularities tend to form.

This lowers the reject rate, since then, for example, blowholes are not torn open by post-processing or other faulty areas are created.

In addition, the invention also makes it possible to form the counter-sealing surface with fewer work steps and more easily, since it can be milled with an ordinary countersunk head.

The invention will now be described in more detail using exemplary embodiments, but is not limited to the exemplary embodiments. Further exemplary embodiments result from combining the features of individual or multiple claims with one another and/or with one or more features of the exemplary embodiment.

• 1 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 2 eine Vergrößerung des in 1 markierten Bereichs einer Gegendichtfläche, einer keilförmiger Dichtung und eines Abschnitts einer Schraubhülse,
• 3 einen keilförmigen Dichtring,
• 4 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt aus abströmseitiger Richtung,
• 5 eine Schraubhülse einer erfindungsgemäßen sanitären Einsetzanordnung aus abströmseitiger Richtung,
• 6 eine Schraubhülse einer erfindungsgemäßen sanitären Einsetzanordnung aus zuströmseitiger Richtung,
• 7 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer zweiten erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 8 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer dritten erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 9 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung mit kranzförmigen Werkzeugangriffsflächen aus abströmseitiger Richtung,
• 10 eine erfindungsgemäße Schraubhülse mit kranzförmigen Werkzeugangriffsflächen,
• 11 die Querschnittsflächen verschiedener Dichtringe,
• 12 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer vierten erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 13 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung mit Einbuchtungen als Werkzeugangriffsflächen aus abströmseitiger Richtung,
• 14 eine erfindungsgemäße sanitäre Einsetzanordnung mit Einbuchtungen als Werkzeugangriffsflächen aus zuströmseitiger Richtung,
• 15 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer fünften erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 16 eine Explosionsdarstellung des Auslaufendes einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung,
• 17 das Auslaufende einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt,
• 18 die Auslaufenden einer erfindungsgemäßen Sanitärarmatur mit einer erfindungsgemäßen sanitären Einsetzanordnung in einem Axialschnitt bei Verwendung verschiedener Dichtringe.

It shows:

• 1 the outlet end of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention in an axial section,
• 2 an enlargement of the in 1 marked area of a mating sealing surface, a wedge-shaped seal and a section of a screw sleeve,
• 3 a wedge-shaped sealing ring,
• 4 the outlet end of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention in an axial section from the downstream direction,
• 5 a screw sleeve of a sanitary insertion arrangement according to the invention from the downstream direction,
• 6 a screw sleeve of a sanitary insertion arrangement according to the invention from the inflow direction,
• 7 the outlet end of a sanitary fitting according to the invention with a second sanitary insert arrangement according to the invention in an axial section,
• 8th the outlet end of a sanitary fitting according to the invention with a third sanitary insert arrangement according to the invention in an axial section,
• 9 the outlet end of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention with ring-shaped tool engagement surfaces from the downstream direction,
• 10 a screw sleeve according to the invention with ring-shaped tool engagement surfaces,
• 11 the cross-sectional areas of various sealing rings,
• 12 the outlet end of a sanitary fitting according to the invention with a fourth sanitary insert arrangement according to the invention in an axial section,
• 13 the outlet end of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention with indentations as tool engagement surfaces from the downstream direction,
• 14 a sanitary insertion arrangement according to the invention with indentations as tool engagement surfaces from the inflow direction,
• 15 the outlet end of a sanitary fitting according to the invention with a fifth sanitary insert arrangement according to the invention in an axial section,
• 16 an exploded view of the outlet end of a sanitary fitting according to the invention tur with a sanitary insertion arrangement according to the invention,
• 17 the outlet end of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention in an axial section,
• 18 the outlet ends of a sanitary fitting according to the invention with a sanitary insertion arrangement according to the invention in an axial section when using different sealing rings.

In the following description of various exemplary embodiments of the invention, elements that have the same function are given the same reference numbers even if their design or shape differs.

For the sake of clarity, not all reference symbols are set in the figures, although the elements can very well be present in the figures. However, the same reference symbols denote functionally and/or constructively the same components and functional units.

1 1 shows a sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20. FIG. The direction of flow of the water is denoted by 34 . The insertion arrangement 1 comprises a diffuser 3 inserted into a diffuser ring 2 and an outlet structure 5 inserted into a housing part 4 or formed onto a housing part 4. The insertion arrangement 1 also has a thread 6 and a sealing ring 7 which is wedge-shaped in this case. The sealing ring 7 is in front of the thread 6 in the screwing direction. The thickest point 8 of the sealing ring 7 is located outside of the radially occupied area of the thread 9. This also applies to at least half of the cross-sectional area 10 of the sealing ring 7. Furthermore, a groove base 11 of the thread 6 is located outside of a radially occupied area of the sealing ring 12 Also shown is a screw sleeve 13 into which the jet regulator 14 is inserted.

2 shows the contact area 31 between the sealing ring 7 on the screw sleeve 13 and the fitting 20 in an enlargement. A cylindrical shoulder 22 is also visible.

3 shows a wedge-shaped sealing ring 7, ie with a wedge-shaped cross-sectional area 10.

4 shows a sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20 , seen from the downstream end 25 of the screw sleeve 13 .

5 shows a screw sleeve 13 with tool gripping surfaces 15 in the form of indentations 16 as seen from the outflow end 25 .

6 shows the screw sleeve 13 5 from the upstream end 17.

7 12 shows another sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20. FIG. The insertion arrangement 1 comprises a diffuser 3 inserted into a diffuser ring 2 and an outlet structure 5 inserted into a housing part 4 or formed onto a housing part 4. The insertion arrangement 1 also has a thread 6 and a sealing ring 7 designed as an O-ring. The thickest point 8 of the sealing ring 7 is located outside of the radially occupied threaded area 9. Furthermore, a screw sleeve 13 is shown, which is designed in one piece with the housing part 4 in this embodiment. In addition, a header screen 18 and a flow regulator 19 are formed.

8th 12 shows another sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20. FIG. In this exemplary embodiment, there is no cylindrical shoulder 22 adjoining the mating sealing surface 21 designed as a chamfer 23 . The diameter 30 of the contact area 31 between the sealing ring 7 and the fitting 20 is located.

The thickest point 8 is located radially outside the crests 36 of the thread 6 here.

9 shows the outflow end 25 of a sanitary fitting 20 according to the invention with a sanitary insertion arrangement 1 according to the invention, on the screw sleeve 13 of which annular formations 24 are formed as tool engagement surfaces 15 .

10 shows a screw sleeve 13 according to the invention with annular formations 24 as tool engagement surfaces 15 from the outflow end 25 .

11 FIG. 1 shows sealing rings 7 with differently shaped cross-sectional areas 10. These can be shaped, for example, circular in the case of an O-ring, triangular in the case of a wedge-shaped ring or also quadrangular. The thickest point 8 of the respective sealing ring is shown.

12 12 shows another sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20. FIG. The insertion arrangement 1 in this exemplary embodiment has a coarse thread 6 and is more compact, so that it does not use the entire fitting thread 27 fills in The radially occupied fitting thread area 28 is less than half as large as the radially occupied sealing surface area 29. In addition, the screw sleeve 13 is welded to the housing part 4 in this embodiment.

13 shows the downstream end 25 of a sanitary fitting 20 according to the invention with a sanitary insertion arrangement 1 according to the invention, on the screw sleeve 13 indentations 16 are formed as tool engagement surfaces 15.

14 shows a screw sleeve 13 according to the invention with indentations 16 as tool engagement surfaces 15 from the end 17 on the inflow side.

15 12 shows another sanitary insertion arrangement 1 according to the invention in axial section, which is inserted into a sanitary fitting 20. FIG. The insertion arrangement 1 in this exemplary embodiment again has a finer thread 6 and is similarly compact to the insertion arrangement from FIG 12 built so that it does not fill the entire valve thread 27. In this exemplary embodiment, a plurality of cylindrical and conical shoulders 22 are formed on the downstream end 25 of the fitting 20 . The sealing ring 7 contacts the fitting 20 at two axially and radially spaced points 32 and 33.

16 shows an exploded view of a sanitary fitting 20 according to the invention with a sanitary insertion arrangement 1 according to the invention. Next, the diffuser ring 2, the sealing ring 7 and the screw sleeve 13 with its thread 6 and the tool engagement surfaces 15 is shown.

17 shows a sanitary fitting 20 according to the invention with a sanitary insertion arrangement 1 according to the invention in an axial section, the sealing ring 7 here being located downstream of the thread 6 in the screwing-in direction. On the sanitary fitting 20 , the fitting thread 27 , a further cylindrical paragraph 22 and the chamfer 23 are followed by a screwing-in direction on a cylindrical shoulder 22 .

In 17 It can also be seen that the thickest point 8 of the sealing ring 7 lies radially inside the thread root 37 (and thus, since the thread 6 is an external thread here, also radially inside the thread crest 36).

By screwing the thread 6 in, the sealing ring 7 is at least partially pressed axially against the counter-sealing surface 21 .

The sealing ring 7 forms a curved sealing surface 26 which bears against the counter-sealing surface 21 .

18 shows sanitary fittings 20 according to the invention with sanitary insert arrangements 1 according to the invention in an axial section in comparison when using different sealing rings 7. In an enlargement it can be seen how the effect of the chamfer 23 with sealing rings 7, in this case O-rings, of different cord thicknesses at different positions of the lead in screwing the thread 6 upstream end 35 of the sanitary insert assembly 1. In a similar way, different positions of the end 35 upstream of the thread 6 in the screwing-in direction result with variations in the angle between the chamfer 23 and the screwing-in direction 34 and the immersion depths of the chamfer 23.

Reference List

1

sanitary insertion arrangement

2

diffuser ring

3

diffuser

4

housing part

5

discontinuation structure

6

thread

7

sealing ring

8th

thickest part of the sealing ring

9

thread area

10

Cross-sectional area of the sealing ring

11

groove bottom

12

sealing ring area

13

screw sleeve

14

aerator

15

tool attack surface

16

indentations

17

upstream end

18

attachment sieve

19

volume controller

20

sanitary fitting

21

counter sealing surface

22

Unit volume

23

chamfer

24

wreath-shaped formations

25

downstream end

26

sealing surface

27

fitting thread

28

fitting thread area

29

sealing surface area

30

diameter

31

contact area

32

Point

33

another point

34

flow direction

35

upstream end

36

threaded tip

37

thread root

Claims (15)

Sanitary insert arrangement (1) with a thread (6) and a sealing ring (7), characterized in that a thickest point (8) of the sealing ring (7) is arranged outside of a thread area (9) radially occupied by the thread (6). is. Sanitary insertion arrangement (1) according to the preamble of claim 1 or after claim 1 , characterized in that a thickest point (8) of a sealing ring (7) is arranged radially outside or inside a thread crest (36) and/or a thread root (37) of the thread (6). Sanitary insertion arrangement (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that at least, in particular more than half of the cross-sectional area (10) of the sealing ring (7) is arranged outside of a thread area (9) radially occupied by the thread (6). Sanitary insertion arrangement (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that the sealing ring (7) is located upstream and/or downstream of the thread (6) in the screwing-in direction. Sanitary insertion arrangement (1) according to the preamble of claim 1 or according to one of the preceding claims, characterized in that a groove base (11) of the thread (6) is arranged outside of a sealing ring region (12) radially occupied by the sealing ring (7). Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that the sealing ring (7) has a round and/or wedge-shaped and/or rectangular cross-sectional area (10). Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that the sealing ring (7) is pressed at least partially in the axial direction against a counter-sealing surface (21) and/or that a sealing surface (26) on the sealing ring (7) has a curvature having. Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that a screw sleeve (13) is stamped out. Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that the thread (6) is an external thread. Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that the screw sleeve (13) is snapped, welded, pressed and/or produced in one piece with a jet regulator (14). Sanitary insert arrangement (1) according to one of the preceding claims, characterized in that the screw sleeve (13) has tool engagement surfaces (15) pronounced in the axial and/or radial direction, in particular indentations (16) and/or preferably arranged uniformly distributed in the circumferential direction and/or has two or at least three formations (24), which are so pronounced that they can interact with a tool in such a way that a screwing movement of the sanitary insertion arrangement (1) can be driven by it. Sanitary fitting (20) with a fitting thread (27), characterized in that an obliquely oriented counter-sealing surface (21) preferably directly adjoins the fitting thread (27). Sanitary fitting (20) according to the preamble of claim 9 or after claim 9 , characterized in that a valve thread region (28) radially occupied by the valve thread (27) is less than half as large as a sealing surface region (29) radially occupied by the or a counter sealing surface (21). Sanitary fitting (20) with a sanitary insert arrangement (1), in particular according to one of claims 9 or 10 , characterized , that a counter-sealing surface (21) is arranged between the fitting (20) and the sealing ring (7) of the sanitary insertion arrangement (1) in the installed position, on the downstream side of a thread (6) and is designed in such a way that the sealing ring (7) presses the fitting (20) is contacted at at least two points (32, 33) spaced axially and radially from one another and/or is angled obliquely in the screwing-in direction in such a way that the diameter (30) of the contact area (31) varies in the screwing-in direction, in particular with a chamfer (23) being formed. Sanitary fitting (20) according to one of claims 9 until 11 , characterized in that the fitting (20) has at least one, in particular cylindrical and/or conical, shoulder (22) on the downstream side of the sealing ring (7), in particular of the chamfer (23).

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