DE202020005539U1 - Sanitary fitting with a shaft tube for quick assembly - Google Patents

Abstract

Sanitary fitting with a fastening device for fixing a fitting body (1) on a washstand (3), comprising: - the fitting body (1), - a shaft tube (4) that can be guided through a recess (2) in the washbasin (3), - a shaft tube (4) Shaft tube (4) push-on pretensioning element (5) with at least two threaded holes (6) and at least two screws (7), the screws (7) being screwable into the threaded holes (6) of the pretensioning element (5) and on the underside of the washbasin (8) can be placed so that the fitting body (1) can be fixed on a washstand top (9) by tightening the screws (7) resting on the washbasin underside (8) of the fitting body (1) over the pretensioning element (5) and the shaft tube (4 ) is pulled against the top of the washbasin (9), characterized in that • the shaft tube (4) has at least two rows of projections (11) on an outer side (10), the projections (11) of a row being arranged one above the other in the axial direction and the rows are arranged offset from one another in the circumferential direction, and the prestressing element (5) on an inner side (12) facing the shaft tube (4) at least two push-on recesses (13) which run continuously in the axial direction and are complementary to the rows of projections (11) ), so that the prestressing element (5) can be moved axially on the shaft tube (4) and can be pushed onto the shaft tube in the direction of the fitting body (1) up to a push-on position, the prestressing element (5) being rotated in the circumferential direction from the The slide-on position can be brought into an assembly position and, in the assembly position, can be placed on the projections (11) of different rows offset from one another in the circumferential direction.

Description

The present invention relates to a sanitary fitting with a fastening device for fixing a fitting body on a washstand, comprising the fitting body, a shaft tube that can be guided through a recess in the washstand, a pretensioning element that can be pushed onto the shaft tube with at least two threaded holes and at least two screws, the screws in the Threaded holes of the pretensioning element can be screwed and placed on the underside of the washstand, so that the fitting body can be fixed on the top of the washbasin by pulling the fitting body over the pretensioning element and the shaft tube against the top of the washbasin by tightening the screws resting on the underside of the washbasin.

In addition to a fixation function, such fastening devices for sanitary fittings are also there to guide one or more water-carrying hoses or one or more flexible pipes that extend from the fitting body to a lower end of the shaft tube in a bundled manner.

A sanitary fitting with the aforementioned features is off
EP 1 039 043 B1 known. In order to enable the sanitary fitting to be fastened quickly and easily, the prestressing element (nut) can be pushed onto the shaft tube (threaded shaft), which has an external thread on the outer surface, in the manner of a ratchet. The pretensioning element has at least one projection which is formed in the direction of the external thread of the shaft tube and which elastically evades the external thread when it is pushed on, but prevents retraction against the push-on direction. A positive fit of the projection against the thread turns of the shaft tube thus results in a blocking of the pretensioning element against the pushing-on direction. After being pushed on, a screw is braced against the underside of the washbasin by a thread in the prestressing element in order to fix the sanitary fitting. The pretensioning element cannot be removed from the shaft tube due to the positive engagement of the projections against the pushing-on direction, even when the screws are loosened. Therefore, a complex twisting off of the pretensioning element from the external thread of the shaft tube is necessary during dismantling.

In addition, a screw is provided for each projection that rests on the external thread in order to fix the projections, which are evasive in the plug-on direction, in a desired position. As a result, it is necessary to tighten further screws in particular for each further projection, which provides more stability for the construction through a larger contact surface on the threads. In addition, if there are several projections offset in the circumferential direction, they do not rest on the shaft tube at the same axial height due to the thread offset, which leads to an unfavorable tilting of the prestressing element.

The object of the present invention is to eliminate the disadvantages described with reference to the prior art and, in particular, to provide an alternative sanitary fitting with a fastening device that can be quickly and easily assembled and disassembled.

The problem is solved by a sanitary fitting with the features of the independent claim. Advantageous further developments of the sanitary fitting are specified in the dependent claims and in the description, with individual features of the advantageous further developments being able to be combined with one another in a technically meaningful manner.

The object is achieved in particular by a sanitary fitting with the features mentioned at the beginning, the shaft tube having at least two, preferably at least four rows of projections on an outside, the projections being arranged one above the other in an axial direction and the rows being offset from one another in the circumferential direction and the prestressing element has at least two push-on recesses that run continuously in the axial direction and are complementary to the rows of projections, so that the prestressing element is axially movable on the shaft tube and can be pushed onto the shaft tube in the direction of the fitting body up to a push-on position is, wherein the biasing element can be brought into an assembly position by a rotation in the circumferential direction and in the assembly position on at least two projections offset from one another in the circumferential direction differently can be placed in rows.

The preferably nub-like projections on the outside of the shaft tube are designed in particular so that the slide-on recesses on the inside of the prestressing element can be moved, guided over the projections, with some play. The projections are in particular regularly arranged on the outside of the shaft tube and arranged in rows one above the other. During assembly, the prestressing element is pushed from below in the direction of the underside of the washbasin onto the shaft tube that is passed through the washbasin. This enables a quick and controlled pushing and pulling of the prestressing element during the Allows assembly and disassembly of the fastening device.

In one embodiment, the projections of adjacent rows, which are arranged adjacently in the circumferential direction, are arranged offset to one another in the axial direction. When it is pushed on, a rotation-like movement of the prestressing element in the circumferential direction is then necessary, so that the push-on recesses engage in the respective axially higher projections. To pull it off, the slide-on recesses then engage in the axially lower projections. Such a sliding movement, which contains a rotational movement, takes place in stepped movements which can be carried out either clockwise or counterclockwise. Thus, an undesired sliding of the prestressing element from the shaft tube is prevented by being held back by the projections during the pushing on.

In a preferred embodiment, however, the projections offset in the circumferential direction of adjacent rows, particularly preferably all rows, are arranged at the same axial height of the shaft tube. In particular, all rows have the same number of projections, the projections preferably being designed to be the same in shape and extent. Thus, no rotary movement is necessary when pushing on and pulling off the pretensioning element. According to this preferred embodiment, the projections, offset in the circumferential direction, of adjacent, in particular of all, rows each engage in a suitable slide-on recess of the pretensioning element when being pushed on and pulled off. This enables faster assembly and faster dismantling of the fitting body on the washbasin.

The pretensioning element is pushed onto the shaft tube up to a slide-on position which, in particular, is as close as possible to the underside of the washstand and from which a rotation of the pretensioning element is possible. A rotation of the pretensioning element is understood as a rotational movement around the shaft tube clockwise or counterclockwise. As a result of the following rotation in the circumferential direction, the prestressing element is brought from the push-on position into the assembly position in which the prestressing element rests on at least two projections of the shaft tube offset in the circumferential direction. In the assembly position, screws can then be screwed against the underside of the washbasin through the threaded holes of the prestressing element, whereby the fitting body is pulled onto the upper side of the washbasin. Because the slide-on position and in particular the assembly position are as close as possible to the underside of the washstand, the stability of the fastening device is increased and shorter screws can be used for the bracing.

Furthermore, the projections on the outside of the shaft tube can each be designed to be flat on a surface facing the underside of the washstand, which is provided for placing the prestressing element in the assembly position. As a result, the prestressing element advantageously rests on the projections in one plane, in particular in a plane parallel to the underside of the washbasin. In addition, the surface of the projections facing away from the underside of the washbasin can also be flat so as not to get caught in the rotational movement when the prestressing element is rotated in the circumferential direction with a preferably likewise flat upper side of the prestressing element.

According to a preferred embodiment, the prestressing element has on the inside in the circumferential direction between two adjacent slide-on recesses in the axial direction at least non-continuous, preferably closed on one side in the slide-on direction and open on the other side, assembly recesses. These mounting recesses are preferably designed complementary to the projections in their extent in the circumferential direction and, after the rotation in the circumferential direction, allow the prestressing element to be placed on axial end faces of the mounting recess by withdrawing the prestressing element. After the retraction, the projections are therefore each arranged in a mounting recess, the mounting recesses preferably being dimensioned in such a way that a rotational movement of the pretensioning element is prevented in this position. A predefined assembly position is therefore specified by the assembly recesses. In this case, all projections of all rows offset in the circumferential direction can each be arranged in a mounting recess. A bayonet-like connection is thus created by pushing the prestressing element onto the shaft tube, rotating the prestressing element in the circumferential direction and then pulling it back. In this case, the projections rest on the axial end face of the respective mounting recess, at least after the screws have been tightened.

In order to facilitate the rotation of the prestressing element in the circumferential direction, guide recesses that adjoin the slide-on recesses and run in the circumferential direction can be formed on the inside of the prestressing element, with a mounting recess being arranged in particular at the other end of the respective guide recess in the direction of rotation. The guide recesses are preferably arranged in such a way that, during rotation, the the same axial height lying projections are each guided in a guide recess. This prevents tilting, facilitates the rotation of the prestressing element in the circumferential direction and advantageously provides a path in the direction of the assembly recess during assembly.

In particular, the end of the guide recess is aligned with a stop on the mounting recess, so that the rotation of the prestressing element is limited by the stop and a defined position for retracting the prestressing element into the mounting recess is reached. The predefined position for pulling back facilitates assembly. During dismantling, a predefined position for pulling off the prestressing element can advantageously also be specified. By means of a corresponding rotary movement against the direction of rotation during assembly up to a stop of the projections on the slide-on recess, a predefined position for pulling off the pretensioning element is achieved in particular. This predefined position is, in particular, the slide-on position.

The guide recesses are not formed continuously in the axial direction. The guide recesses are preferably smaller than half the axial height of the prestressing element in the axial direction.

In one embodiment, the guide recesses are designed to be open in the direction of the lower side of the prestressing element. In this case, the guide recesses can be made somewhat smaller than the axial height of the respective projection to be guided. However, it can also be that the guide recess is the same size or, more preferably, larger than the axial height of the respective projection to be guided.

In another embodiment, the guide recesses are not designed to be open in the axial direction, or are arranged in the prestressing element on the inside. The guide recesses are formed somewhat larger than the projections to be guided in order to enable a guided rotary movement in the direction of the assembly recess. In particular, the entire part of a projection is guided in the guide recess. In this case, the mounting recess is preferably also designed to be closed in the axial direction on both sides and is arranged at the end of the guide recess. In this embodiment, a particularly precise guiding of the projections is possible.

The projections on the outside of the shaft tube are preferably designed to be rounded towards the outside. Together with the recesses of the prestressing element which are designed to be complementary to the projections, the pushing on, the turning and the retraction are simplified. In addition, pulling off during dismantling is made easier.

In order to simplify the sliding on, the rotational movement in the circumferential direction and the retraction of the prestressing element, the sliding recesses, the guide recesses and / or the mounting recesses can be rounded inward, in particular the recesses are rounded to complement the projections. An advantageous rounded shape also prevents the projections from tilting in the recesses.

According to one embodiment, the height of the prestressing element in the axial direction is smaller than the distance between two adjacent projections of a row. Thus, when rotated in the circumferential direction, the prestressing element fits between two adjacent projections of a row.

In a preferred embodiment of the invention, the prestressing element has a height which is greater than the distance between two adjacent projections of a row. In particular, in this case the prestressing element has the guide recesses for the projections. This preferred embodiment has the advantage that when the pretensioning element is pushed on in the axial direction of the shaft tube, continuous guidance of the pretensioning element through the projections is ensured, since at least one projection of a row is arranged in the corresponding slide-on recess at any time during the pushing-on. Namely, if a lower part of a slide-on recess of the biasing element leaves a protrusion when it is pushed on, or is no longer guided by the protrusion, at least one protrusion arranged above it is already arranged in a part of the slide-on recess located further up.

In one embodiment, the shaft tube and the fitting body consist of two separate parts. In this case, the shaft tube has a thread on the upper side located closer to the fitting body, which thread can be connected to a matching mating thread on the underside of the fitting body. Furthermore, further releasable form-fitting and / or force-fitting connections of the shaft tube and the fitting body are conceivable.

In another embodiment, the shaft tube and the fitting body can be formed in one piece, in which case the shaft tube can only be guided through the recess in the washstand from the top of the washstand.

In one embodiment, the prestressing element has a uniform wall thickness perpendicular to its center axis. Alternatively, the wall thickness of the prestressing element can be designed to be of different thicknesses in different areas. The threaded holes for the screws located in the prestressing element can advantageously be arranged in such thicker wall regions of the prestressing element. This simplifies the tightening of the screws with a tool, since a point of application for screwing is further away from the shaft tube than would be the case with a uniform wall thickness distribution without the more strongly developed wall areas.

The prestressing element is designed, in particular, to be closed around an opening for the shaft tube. The prestressing element is preferably designed to be ring-shaped, oval or round in some other way. A shape of the prestressing element that is closed in the circumferential direction is advantageous for stability.

It can be provided that one or more washers and / or one or more sealing rings are braced between the fitting body and the top of the washbasin in the assembled state.

In addition, one or more sealing rings and / or one or more washers can be clamped in the assembly position between the screws and the underside of the vanity. Furthermore, one or more washers can be clamped between the prestressing element and the screws.

According to a preferred embodiment of the invention, the projections on the outside of the shaft tube have the same shape, size and shape. Such a symmetrical configuration and in particular a regular arrangement of the projections results in structural advantages. In addition, in this embodiment the prestressing element can be pushed onto the shaft tube in several orientations relative to the shaft tube. In this case, all of the lowermost projections of a row are particularly preferably arranged in a slide-on recess. Assembly is accordingly simplified. However, it is also conceivable that the projections of different rows are designed differently in shape, size and shape, so that the prestressing element can only be pushed onto the shaft tube in one orientation relative to the shaft tube.

The shaft tube is preferably made of metal. Alternatively, the shaft tube can also consist of a different material.

The prestressing element can preferably consist of metal or plastic. Alternatively, the prestressing element can also consist of other materials.

• • Einführung des Schaftrohres in eine Ausnehmung des Waschtisches und gegebenenfalls das Verbinden des Schaftrohres mit dem Armaturenkörper.
• • Aufschieben beziehungsweise Vorschieben des Vorspannelementes von der Unterseite des Waschtisches auf beziehungsweise entlang des Schaftrohres in Richtung des Armaturenkörpers, wobei das Vorspannelement von den auf der Außenoberfläche des Schaftrohres angeordneten Vorsprüngen in den Aufschiebeausnehmungen bis zu einer möglichst nahe der Waschtischunterseite befindlichen Aufschiebeposition geführt wird.

• • Drehung des Vorspannelementes in Umfangsrichtung, wobei die Drehbewegung von den Vorsprüngen des Schaftrohres in den dafür vorgesehenen Führungsausnehmungen des Vorspannelementes geführt wird.
• • Drehung über die Führungsausnehmung hinaus, wobei die Drehbewegung in Umfangsrichtung des Vorspannelementes insbesondere durch einen Anschlag an einer Seitenfläche der Montageausnehmung begrenzt wird.
• • Zurückziehen des Vorspannelementes entgegen der Aufschieberichtung bis es zu einem Aufliegen der Vorsprünge auf einer axialen Stirnfläche der Montageausnehmung des Vorspannelementes kommt und dadurch die Montageposition des Vorspannelementes erreicht wird.
• • Verspannen der Befestigungsvorrichtung durch Anziehen der Schrauben in den Gewindelöchern des Vorspannelementes gegen die Unterseite des Waschtisches.

The assembly of the sanitary fitting for fixation on the vanity preferably includes at least some of the following steps:

• • Insertion of the shaft tube into a recess in the washstand and, if necessary, the connection of the shaft tube to the fitting body.
• • Pushing or advancing the prestressing element from the underside of the washstand onto or along the shaft tube in the direction of the fitting body, the prestressing element being guided by the projections arranged on the outer surface of the shaft tube in the slide-on recesses as close as possible to the underside of the washstand.

• • Rotation of the prestressing element in the circumferential direction, the rotary movement being guided by the projections of the shaft tube in the guide recesses provided for this purpose in the prestressing element.
• • Rotation beyond the guide recess, the rotational movement in the circumferential direction of the prestressing element being limited in particular by a stop on a side surface of the mounting recess.
• • Withdrawal of the prestressing element against the pushing-on direction until the projections come to rest on an axial end face of the mounting recess of the prestressing element and the installation position of the prestressing element is reached.
• • Tension the fastening device by tightening the screws in the threaded holes of the pre-tensioning element against the underside of the washbasin.

An exemplary dismantling process of the fastening device according to the invention takes place in the reverse order of the assembly process, the pushing on being replaced by a pulling off, and the retraction being replaced by a pushing. In addition, the screws are loosened from the threaded holes of the prestressing element.

In a dismantling process, particularly when it is pushed out of the assembly position, an upper side of the prestressing element comes to a stop against a lower part of the projections arranged further up on the shaft tube. In addition, the rotation takes place in the circumferential direction in the other direction, in which case a stop on a side surface of the slide-on recess against the projections can again occur. Finally, the shaft tube is pulled out of the recess in the washbasin.

• 1: eine Perspektivansicht einer Sanitärarmatur mit einem zum Teil aufgeschobenen Vorspannelement,
• 2: eine Perspektivansicht der Sanitärarmatur mit dem Vorspannelement in einer Montageposition,
• 3: eine Schnittansicht einer Befestigungsvorrichtung einer fixierten Sanitärarmatur gemäß 2,
• 4: eine Perspektivansicht eines Schaftrohres mit Vorspannelement,
• 5: eine Perspektivansicht des Vorspannelementes,
• 6: eine Draufsicht auf das Vorspannelement gemäß 5 und
• 7: eine Unteransicht auf das Vorspannelement gemäß 5.

The invention and the technical environment are explained below by way of example with reference to the figures. They show schematically:

• 1 : a perspective view of a sanitary fitting with a partially pushed-on pretensioning element,
• 2 : a perspective view of the sanitary fitting with the prestressing element in an assembly position,
• 3 : a sectional view of a fastening device of a fixed sanitary fitting according to FIG 2 ,
• 4th : a perspective view of a shaft tube with prestressing element,
• 5 : a perspective view of the prestressing element,
• 6th : a plan view of the biasing element according to FIG 5 and
• 7th : a view from below of the prestressing element according to FIG 5 .

The sanitary fitting shown in the figures comprises a fitting body 1 standing on a vanity 3 with one through a recess 2 in the vanity 3 protruding shaft tube 4th via a biasing element 5 on a vanity top 9 is braced. The shaft tube 4th is with the faucet body 1 connected and pointed on an outside 10 several rows of knob-like projections offset in the circumferential direction 11 on.

Like in particular from 4th it can be seen are the projections offset in the circumferential direction 11 different rows at the same axial height of the sheep pipe 4th arranged. All the protrusions 11 are designed the same in shape and size. In addition, all are protrusions 11 regularly on the outside 10 of the shaft tube 4th arranged, as well as flat in the axial direction above and below (cf. 3 ). Furthermore, in the 1 until 3 recognizable that the shaft tube 4th from the fitting body 1 coming hoses 17th towards the underside of the vanity 8th leads.

That in the 4th until 7th biasing element shown in detail 5 is ring-shaped and has a greater axial height than the distance between two projections arranged one above the other 11 one row on the shaft tube 4th amounts, as in particular, from 3 emerges. In two reinforced wall areas of the prestressing element 5 are two threaded holes 6th for screws 7th arranged. On an inside 12th has the biasing element 5 six slide-on recesses each 13th , six guide recesses 16 and six mounting recesses 14th on.

The slide-on recesses 13th are continuous in the axial direction and complementary to the rows of projections 11 of the shaft tube 4th educated. In particular, a width corresponds to the slide-on recess 13th in the circumferential direction of a width in the circumferential direction of a projection 11 . The slide-on recesses 13th go immediately clockwise (compare 5 ) into the guide recesses 16 above.

The guide recesses 16 are not designed to run continuously in the axial direction and are significantly smaller in the circumferential direction than the slide-on recess 13th . The guide recesses 16 are designed to be open at the bottom (cf. 5 ). To the guide recesses 16 the mounting recesses close immediately in a clockwise direction 14th and thus connect the slide-on recess 13th with the mounting recess 14th .

The mounting recesses 14th are not designed to run continuously in the axial direction and are of the same size in the circumferential direction as the slide-on recesses 13th . In particular, the mounting recesses 14th complementary to the rows of protrusions 11 of the shaft tube 4th designed and are like the guide recesses 16 open at the bottom. The mounting recesses 14th are larger in the axial direction than the guide recesses 16 and point on the axially non-continuous side in the prestressing element 5 upwards an axial end face 15th on (compare 7th ).

As in particular in 4th shown, the biasing element 5 during an assembly process on the shaft tube 4th be attached from below, so that there is a bottom protrusion in each case 11 one row in a slide-on recess 13th intervenes. Then the biasing element 5 continue on the shaft tube 4th towards the underside of the vanity 8th pushed, doing the projections 11 in the slide-on recesses 13th be guided. If one is as close as possible to the underside of the vanity 8th located sliding position is reached, the biasing element 5 can be rotated by turning it counterclockwise.

When rotating from the slide-on position, the prestressing element 5 in the guide recesses 16 from the protrusions 11 guided up to a stop on an outer wall of the mounting recess in the direction of rotation 14th turned will. The pretensioning element is created from the position specified by the stop 5 withdrawn against the slide-on direction and thus brought into an assembly position.

All projections offset in the circumferential direction are in the assembly position 11 different rows on axial end faces 15th the mounting recesses 14th on. It will now be the screws 7th into the threaded holes 6th screwed into the 2 and 3 shown assembled state of the sanitary fitting is achieved in which the screws 7th using the washers against the underside of the washbasin, which are also shown as an example 8th are tense. About the on the axial end faces 15th the mounting recesses 14th overlying projections 11 of the shaft tube 4th becomes the faucet body 1 on the top of the vanity 9 pulled and thus fixed.

When dismantling, the screws 7th from the threaded holes 6th screwed and the biasing element 5 pushed up. A subsequent rotation against the direction of rotation during assembly causes the prestressing element 5 brought back to the slide-on position. Then the biasing element 5 along the shaft tube 4th completely from the shaft tube 4th be withdrawn, the biasing element 5 from the protrusions 11 in the slide-on recesses 13th to be led. Then the with the shaft tube 4th connected fitting body 1 from the recess 2 of the vanity 3 pull out.

List of reference symbols

1

Faucet body

2

Recess

3

Vanity

4th

Shaft tube

5

Biasing element

6th

Threaded holes

7th

Screws

8th

Vanity underside

9

Vanity top

10

Outside

11

Ledges

12th

inside

13th

Sliding recess

14th

Mounting recess

15th

Face

16

Guide recess

17th

Hoses

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 1039043 B1 [0003]

Claims (9)

Sanitary fitting with a fastening device for fixing a fitting body (1) on a washstand (3), comprising: - the fitting body (1), - a shaft tube (4) that can be guided through a recess (2) in the washbasin (3), - a shaft tube (4) Shaft tube (4) push-on pretensioning element (5) with at least two threaded holes (6) and - at least two screws (7), wherein the screws (7) can be screwed into the threaded holes (6) of the pretensioning element (5) and on a washstand underside (8) can be placed so that the fitting body (1) can be fixed on a washstand top (9) by tightening the screws (7) resting on the washbasin underside (8) of the fitting body (1) over the pretensioning element (5) and the shaft tube (4 ) is pulled against the top of the washbasin (9), characterized in that • the shaft tube (4) has at least two rows of projections (11) on an outer side (10), the projections (11) of a row being arranged one above the other in the axial direction et are and the rows are offset from one another in the circumferential direction, • and the biasing element (5) on an inner side (12) facing the shaft tube (4) at least two axially continuous and complementary to the rows of projections (11) formed slide-on recesses (13), so that the prestressing element (5) can be moved axially on the shaft tube (4) and can be pushed onto the shaft tube in the direction of the fitting body (1) up to a position where the prestressing element (5) can be rotated in the circumferential direction can be brought from the push-on position into an assembly position and, in the assembly position, can be placed on the projections (11) of different rows offset from one another in the circumferential direction. Sanitary fitting according to Claim 1 , wherein the circumferentially offset rows of projections (11) have the same number of projections (11) and the circumferentially adjacent projections (11) of two adjacent rows are arranged at the same axial height of the shaft tube (4). Sanitary fitting according to at least one of the preceding claims, wherein the prestressing element (5) on the inside (12) in the circumferential direction between two adjacent slide-on recesses (13) has non-continuous assembly recesses (14) in the axial direction, the projections (14) lying at the same axial height. 11) into the assembly recesses (14) after rotation by retracting the preloading element (5) and the projections (11) on the preloading element (5) can be placed on axial end faces (15) of the assembly recesses (14) so that the shaft tube (4) can be connected to the prestressing element (5) in a bayonet-like manner. Sanitary fitting according to at least one of the preceding claims, wherein the prestressing element (5) on the inside (12) has guide recesses (16) adjoining the slide-on recesses (13) and running in the circumferential direction, which are designed so that during rotation the on the projections (11) located at the same axial height can be guided in the guide recesses (16). Sanitary fitting according to Claim 3 or 4th , wherein the guide recesses (16) and / or the assembly recesses (14) are designed to be rounded inward. Sanitary fitting according to Claim 4 or 5 wherein the prestressing element (5) has a height which is greater than the distance between two projections (11) arranged one above the other in a row. Sanitary fitting according to at least one of the preceding claims, wherein the shaft tube (4) and the fitting body (1) consist of two separate parts, the shaft tube (4) and the fitting body (1) being connectable to one another by a releasable form-fitting and / or force-fitting connection . Sanitary fitting according to at least one of the preceding claims, wherein the projections (11) are designed to be rounded towards the outside. Sanitary fitting according to at least one of the preceding claims, wherein the prestressing element (5) has different wall thicknesses.

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