WO2016173772A1

WO2016173772A1 - S-connection for connecting a fitting to a water line

Info

Publication number: WO2016173772A1
Application number: PCT/EP2016/056018
Authority: WO
Inventors: Frank Bernhard
Original assignee: Frank Bernhard
Priority date: 2015-04-29
Filing date: 2016-03-18
Publication date: 2016-11-03
Also published as: EP3289145B1; DE202015102160U1; EP3289145A1

Abstract

S-connection for connecting a fitting to a water line, comprising · an S-piece which has a 3/4''-external thread for connecting to a fitting and an internal thread, wherein a longitudinal axis of the 3/4''-external thread and a longitudinal axis of the internal thread are arranged parallel to and at a distance (d) from one another, and · a pipe piece which has a water-line-side portion with a 1/2''-external thread for connecting to a water line and an S-piece-side portion which has an external thread with a length of at least 30 mm which can be screwed into the internal thread of the S-piece.

Description

S connection for connecting a fitting to a water pipe

The invention relates to an S-connection for connecting a valve to a water pipe. Known S-ports for this purpose have a male thread for connection to a water pipe and a 3/4 "external thread for connection to a fitting, the longitudinal axes of said threads being parallel and spaced apart are arranged from each other.

The S-terminals are S-shaped as a whole, so that by adjusting the angle of rotation after screwing the 1/2 "- external thread into an internal thread of a water pipe connection a lateral position (ie the arrangement of the longitudinal axis of the 3/4" -Outßengewindes in the plane The distance between the two longitudinal axes is also referred to as "adjustability" because of this adjustment possibility "- External thread is particularly important to be able to mount a fitting with two at a standardized distance from each other arranged connections for hot and cold water exactly horizontal.

In addition to this lateral adjustability by twisting the S-connection, it is necessary to arrange the 3/4 "outer screw at the correct distance from the wall in order to assemble the valve properly / 2 "- external thread of the S-connection to be bridged. The wall plate is an angled end piece of the water pipe, which has fastening tabs with which it is fastened within the wall.

In order to bridge the mentioned distance, so-called tap extensions are used, which are screwed into the wall disk with a 1/2 "outer edge and at their other end have a 1/2" internal thread, into which the 1/2 ""- The outside of the S-connector is screwed in. Depending on the size of the distance to be bridged, between the wall plate and the S-connection, several stopcocks can be used. The Hahnverlängerangen are available in many different lengths in 5 mm Abstutüngen, z. B. from

10 mm to 50 mm in length.

From the document DE 20 2015 100 038 U 1, a special S-connection has become known, in which the end provided with the 1/2 "external thread is made substantially longer than usual, so that it can be shortened as required If there is no need for a cumbersome series of length changes, the 1/2 "male thread must be made cylindrical in order to shorten the section provided with the 1/2" male thread to the required size be.

From the document DE 10 2013 205 250 A 1, a pipe connection adapter has become known, which can compensate for a lateral offset similar to a conventional S-connection. For this purpose, the known Rohanschlussadapter on a first part, which is screwed into a wall plate or a H ah n veti än geru ng g and is disc-shaped at its end facing away from it. A second part of the known pipe connection adapter, which is connected to the fitting, encloses the disk-shaped portion in a fluid-tight manner and can be displaced in the plane of the disk. A bridging difference I large distances between the valve and wall plate is not possible with the known pipe connection adapter.

From the document DE 20 2014 006 320 U 1, an S-connection has become known which, like a conventional S-connection, is screwed with one end into a wall plate or a tap extension. At the other end, which is provided for connection to the valve, there is an adapter which is mounted adjustable in Axiall direction. By moving the adapter, the Overall length of the device can be adjusted in a certain frame to a given distance between wall plate and fitting.

On this basis, it is the object of the invention to provide an S-connection for connecting a fitting to a water pipe, which can be easily adapted to a given distance between the fitting and the water pipe and allows easy and reliable sealing.

This object is achieved by the S-connection with the features of claim 1. Advantageous embodiments are specified in the subsequent subclaims.

The S connection is used to connect a fitting to a water pipe and has

An S-piece having a 3/4 "external thread for connection to a fitting and an internal thread, wherein a longitudinal axis of the 3/4" external thread and a longitudinal axis of the internal thread are arranged parallel and at a distance from each other, and

• a pipe section that has a water pipe side section with a 1/2 "male thread for connection to a water pipe and a S-piece side section that has a male thread with a length of at least 30 mm that fits into the internal thread of the S Piece is screwed.

The S-piece can be shaped similar to a conventional S-connector. In particular, it has a 3/4 "external thread, which is connected to the fitting in the manner known from conventional S-type connections, for example with a union nut provided on the fitting, which fits onto the fitting 3/4 "- male thread of the S-piece is screwed on and clamped a Di cht surface of the valve with a front side of the S-piece. The seal is done here so in the Usually not in the area of the thread, but on the front side of the S-piece at the end provided with the 3/4 "outer ring.

The lateral offset is effected by the distance between the longitudinal axes of the 3/4 "external thread on the one hand and the internal thread of the S-piece on the other hand.The lateral arrangement of the 3/4" external thread of the S-piece can thus, as in conventional S Connections are adjusted by twisting the S-piece.

In the invention, in addition to the S-piece there is a piece of pipe which is responsible for the adaptability of the length of the entire S-connection. The pipe section can be straight and completely rotationally symmetrical. It has a 1/2 "male thread for connection to a water pipe, which in particular can be screwed directly into a wall washer., Of course, the 1/2" male thread of the pipe piece can also be in the manner known from conventional S-type fittings with a tap extension be screwed, if the distance between the wall plate and fitting is so large that it can not be completely bridged by the S-connection.

In addition to the 1/2 "external thread for connection to a water pipe, the pipe section has an S-piece side section which has an external thread which can be screwed into the internal thread of the S-piece Longitudinal axis of the 1/2 ' ^* - external thread coincide for connection to the water pipe.

The external thread of the S-piece-side portion of the pipe piece can be screwed into the internal thread of the S-piece, wherein a reliable seal in the region of this Gewi ndeverbi tion can be made for example with the aid of a sealant such as hemp or sealing tape. If the S-piece and the pipe section are connected in this way, the S-connection according to the invention, like a conventional S-connection, forms a 3/4 "outer end at one end Connection with the fitting and at the other end a 1/2 "external thread for the connection with the water line available.Several of a conventional S-connection, the lateral adjustability on the one hand by twisting the pipe relative to the water pipe, on the other hand by turning the S-piece relative to the pipe section to be realisiert.

A further advantage of the S-connection according to the invention is that the overall length can be easily adapted to a given distance between the water pipe and the fitting by shortening the S-piece-side section of the pipe section as required. The shortening of the S-piece-side section leaves the connections between the water-line-side section and the water pipe on the one hand and the 3/4 "outside win- dow and the fitting on the other hand completely untouched These connections can be made in the usual way getting produced.

On the other hand, the liquid-tight connection between the pipe section and the S-piece can be produced, in particular, prior to installation on the water line, so that the connection area to be sealed is particularly well accessible. Errors in the seal can be avoided.

The external thread of the S-piece-side pipe section has a length of at least 30mm. For the connection between the pipe section and S-piece, it is sufficient to screw the Außengew inde of the S-piece-side portion of the pipe section about 8 mm to 1 5 mm deep into the internal thread of the S-piece. The excess length can thus be easily shortened to adjust the overall length of the S-terminal in the desired manner. Shortening can be done step by step and with millimeter precision, so that an exact positioning of the 3/4 "outer thread is always possible. In one embodiment, the 1/2 "male thread of the water pipe side portion of the pipe piece and the male thread of the S piece side portion of the pipe piece are spaced apart by 10 mm or less, and the spacing may be even smaller, for example less than 5 mm or less than 2 mm.The two threads can also be directly adjacent to each other or merge into each other.The smaller the distance between the two threads, the more the pipe section can be shortened.

In one embodiment, the 1/2 "external thread of the water pipe-side section of the pipe section is a conical thread, in particular this thread can be designed in accordance with the standard EN 1 0226 and / or DIN 2999. In the case of a tapered external thread, the external diameter of the thread increases with increasing distance the water-line-side end of the water-line-side section slightly, so that when screwed into a cylindrical internal thread of a wall plate a metallic seal is obtained. which also has a shortenable external thread, with the inventive S-connection, therefore, a metal-to-metal seal between S-connection and wall plate which is considered particularly safe is possible, which is of particular importance because it is this connection which is particularly deep is disposed within the wall, so beso a leak It is difficult to discover and correct. Leakage in this area often causes particularly large water damage.

In one embodiment, the external thread of the S-piece side portion of the pipe section is a cylindrical thread. In a cylindrical thread, the outside diameter of the thread is constant over the entire length of the external thread. With the intended shortening of the external thread of the S-piece-side section, therefore, nothing changes at the screw connection between pipe piece and S-piece. In one embodiment, the internal thread of the S-piece is a Zyl-Indian thread. This is for the screw with the external thread of the S-piece-side portion of the pipe section particularly ei nfach, the seal as usual I can be done with the aid of a sealant.

In one embodiment, the internal thread of the S-piece is a tapered thread. This may also comply with one of the above standards. It has a slightly decreasing with increasing distance from the pipe piece facing the end of the S-piece inner diameter, so that when screwing the pipe piece also a metallic seal is achieved, which is considered to be particularly reliable.

In further embodiments, the external thread of the S-piece side portion of the pipe section has a length of at least 50 mm or at least 80 mm. As a result, larger distances between the water pipe and fitting can be bridged. At the same time a shortening of the pipe section is possible to an even greater extent, so that in the vast majority of installation situations on the additional use of a Hah N veii än geru n g can be omitted.

In one embodiment, the male thread of the S-piece side portion of the pipe fitting and the female thread of the S-piece are 1/2 "threads., Other diameters are generally possible built and allow optimal flow.

In one embodiment, the S-piece has a total length of 40 mm or less. For example, the total length of the S-piece may be in the range of 25 mm to 40 mm, preferably in the range of 30 mm to 35 mm. By a correspondingly short construction of the S-piece, the total length of the S-connection can be kept particularly short. Another advantage is that the connections between the pipe section and S-piece outside the wall, for example, in front of the plane of a surface of tiles applied to the wall. A leak in Verbi ndungsbereich between S-piece and pipe section can be particularly easily noticed and eliminated. The risk of leaking water inside the wall unnoticed in this area and causing long-term damage is reduced.

In one embodiment, the S-piece has a fitting-side portion having the 3/4 "male thread, a pipe piece-side portion having the female thread, and a middle portion forming a transition between the fitting-side portion and the pipe-piece-side portion. The seitl Ie offset of the longitudinal axes between the two threads of the S-piece is realized by the middle section real.

In one embodiment, the length of the middle section is 10 mm or less. This favors a particularly kurzsei tigert construction of the S-piece.

In one embodiment, the length of the internal thread of the S-piece 1 5 mm or less. Thus, the internal thread is sized so that a reliable seal against the external thread of the pipe section is possible. For this purpose, a length of the internal thread in the range of 8 mm to 15 mm, in particular in the range of 8 mm to 12 mm or of about 10 mm may be sufficient. With a correspondingly short internal thread of the S-piece, the S-piece can also be made very short overall.

In one embodiment, the distance between the longitudinal axes is in the range of 3 mm to 40 mm. An adjustability in this range, preferably in the range of 5 mm to 20 mm, is sufficient for the erforderl Ie, lateral adjustment of the arrangement of 3/4 "- Außengewi Ndes usually. In one embodiment, in addition to the internal thread, the S-piece has a 1/2 "internal thread which is arranged concentrically to the 3/4" external thread. As a result, the S-connection is not only suitable for connecting a fitting to the 3/4 "outlet in the manner described above, but can also be used for connection with an angle valve, which is concentric with the 3/4 "- male thread arranged a 1/2" - female thread is screwed in. Thus, the seitl I arrangement of such Eckventi ls and its distance to the water pipe with the help of the S-connection can be adjusted.

In one embodiment, the external thread of the S-piece-side section on a corrugation. This can facilitate sealing with a sealant such as hemp or sealing tape when screwing.

In one embodiment, the S-piece-side section can be shortened with a pipe saw. Shortening with a pipe saw is particularly easy and with sufficient accuracy without a special tool.

In principle, the S connection can be made from all materials that can be used in the sanitary sector. In one embodiment, the S-port is made of brass and or is chrome plated. He is thus particularly durable. Also used can be gunmetal or stainless steel.

The invention will be explained in more detail with reference to embodiments shown in FIGS. Show it:

1 shows an S-connection in a simplified sectional view,

Fig. 2 shows the S-connection of Fig. 2 in the mounted state on a water pipe, also in a simplified sectional view. The illustrated in Fig. I S-connection consists of an S-piece 10 and a pipe section 12, so it is in two parts ig. The S-piece 10 has three longitudinal sections, namely a fitting-side portion 14, a pipe piece side portion 1 6 and a middle portion 1 8. The middle portion 1 8 forms a transition between the fitting-side portion 14 and the pipe piece side portion 1.

The fitting-side section 14 has a 3/4 "U-shaped walls 20, which extends substantially over the entire length of the fitting-side section 14 and has a longitudinal axis 22. The pipe-section-side section 16 has an internal thread 24 which extends substantially over the entire length of the pipe piece side portion 1 6 and has a longitudinal axis 26. The two longitudinal axes 22, 26 are arranged parallel to each other and at a distance d in dargestel Lten example, the distance is about 10 mm and the internal thread 24 has a diameter of 1/2 ". The female thread 24 may be cylindrical as shown. Alternatively, a conical internal thread can be used at this point.

The total length 1 of the illustrated S-piece 10 is about 35 mm, of which 10 mm or less attributable to the middle section 1 8.

The pipe section 12 has a substantially uniform inner diameter and has a longitudinal axis 28, to which it is completely rotationally symmetrical. The pipe piece 1 2 has an S-piece side portion 30 having a cylindrical external thread 32 with a length of at least 30 mm. The S-piece-side section 30 together with external thread 32 can be shortened as desired, for example with a pipe saw. The pipe section 12 also has a water pipe side portion 34 with a conical ½ "- external thread 36, with which it can be connected to a water pipe.

In use, the pipe section 12 is shortened in the region of the external thread 30 to the required length and connected to the S-piece 10. For this purpose, the external thread 32 of the S-piece-side Abschn itt 30 of the pipe section 1 2 is screwed into the internal thread 24 of the S-piece 10, wherein a sealant such as hemp or a sealing tape can be added.

Fig. 2 shows the S-connection of Fig. I in a typical installation state. Shown is a wall 38, in which a wall plate 40 is fixed, which represents a construction-side conclusion of a water pipe not shown. The wall plate 40 has a cylindrical 1/2 "female thread 42.

Before mounting the S-terminal, the given installation depth s of the wall plate 40 in the wall 38 is measured, for example, from an end face 44 of the wall plate 40 to a front side 46 of the wall 38 corresponding to, for example, the front of a tile. Subsequently, the length of pipe 12 is shortened so that the total length of the S-port is bridged to the mounting depth s and the desired distance of the 3/4 "external thread for connection to the fitting from the front of the wall 46, when properly seated in the internal thread 42 of the wall plate 40 is screwed.

After shortening of the pipe section 1 2 this is screwed with the addition of a suitable sealant with the S-piece 10 and the tapered 1/2 "external thread 36 of the water pipe side portion 34 of the blank 12 wi rd firmly screwed into the internal thread 42 of the wall plate 40, so that there is a metallically sealing connection. Subsequently, a rosette 48 can be screwed onto the 3/4 "external thread 20 of the S-piece 10 so that the rosette 48 rests against the surface 46 of the wall 38 and a longitudinal section of the 3/4" sufficient for attachment of a fitting. It remains unsuccessful.

Claims

Claims:

1 . S connection for connecting a fitting to a water pipe with

An S-piece (10) having a 3/4 "male thread (20) for connection to a fitting and an internal thread (24), a longitudinal axis (22) of the 3/4" male thread (20) and a longitudinal axis (26) of the internal thread (24) are arranged parallel to and at a distance (d) from each other, and

A pipe piece (12) having a water pipe side portion (34) with a 1/2 "- external thread (36) for connection to a water pipe and an S-piece-side portion (30) having an external thread (32) has a length of at least 30 mm, which is screwed into the internal thread (24) of the S-piece.

2. S-connection according to claim 1, characterized in that the 1/2 "- external thread (36) of the water pipe side portion (34) of the pipe section (12) and the external thread (32) of the S-piece-side portion (30) of the pipe section (12) have a distance from each other of 10 mm or less.

3. S-connection according to claim 1 or 2, characterized in that the 1/2 "- external thread (36) of the water pipe side portion (34) of the pipe section (12) is a conical iges thread.

4. S-connector according to one of claims 1 to 3, characterized in that the external thread (32) of the S-piece-side portion (30) of the tubular piece (12) is a cylindrical thread.

5. S-connection according to one of claims 1 to 4, characterized in that the internal thread (24) of the S-piece (10) is a Zyl-Indian thread.

6. S-connector according to one of claims I to 4, characterized in that the internal thread (24) of the S-piece (10) is a tapered thread.

7. S-connector according to one of claims 1 to 6, characterized in that the external thread (32) of the S-piece-side portion (30) of the tubular piece (12) has a length of at least 50 mm.

8. S-connector according to one of claims 1 to 7, characterized in that the external thread (32) of the S-piece-side portion (30) of the tubular piece (12) has a length of at least 80 mm.

9. S-connector according to one of claims 1 to 8, characterized in that the external thread (32) of the S-piece-side portion (30) of the pipe section (12) and the internal thread (24) of the S-piece (10) 1/2 "thread are.

10. S-connector according to one of claims 1 to 9, characterized in that the S-piece (10) has an overall length of 40 mm or less.

1 1. S-connector according to one of claims 1 to 10, characterized in that the S-piece (10) has a fitting-side portion (14) having the 3/4 "- external thread (20), a pipe piece side portion (16) the internal thread (24), and a central portion (1 8) bi leth a transition between the fitting-side portion (14) and the pipe piece side portion (16) bi.

12. S-connector according to claim 11, characterized in that the length of the central portion (18) is 10 mm or less.

1 3. S-connector according to one of claims 1 to 1 2, characterized in that the length of the internal thread (24) of the S-piece (10) is 15 mm or less.

14. S-connector according to one of claims 1 to 13, characterized in that the distance (d) between the longitudinal axes (22, 26) in the range of 3 mm to

40 mm.

1 5. S-connection according to one of claims 1 to 14, characterized in that the S-piece (10) in addition to the internal thread (24) has a l / 2 "internal thread which is concentric to the 3/4" - A u Ben ben wi nde (20) is arranged.

16. S-connector according to one of claims 1 to 1 5, characterized in that the external thread (32) of the S-piece-side portion (30) of the tubular piece (12) has a corrugation autweist.

1 7. S-connection according to one of claims 1 to 1 6, characterized in that the S-piece-side portion (30) of the pipe section (30) can be shortened with a pipe saw.

1 8. S-connector according to one of claims 1 to 1 7, characterized in that the S-connection is made of brass and / or chrome-plated.