DE19634149C2 - Tubular siphon with plug connection - Google Patents

Description

The invention relates to a drain fitting for the sanitary area with one in the Drain hole of the washbasin, the sink or the shower tray inserted Drain valve body and one with a knurled nut and an adjustment tube with it connected pipe bend and then and on the pipe bend Drain connector.

Sanitary drain fittings for sinks, sinks, shower trays and the like are provided with a part that can be fixed in the drain hole, which also includes the Contains drain valve body. This is needed to get water in the sink, in backwater in the sink or in the shower tray. On these parts using a knurled nut, a pipe bend is attached, which connects to the in the drainage pipe leading into the wall. The elbow is called Odor trap is required, which is why it usually has a U-shaped body represents. The disadvantage is that both at the transition area between Drain valve body and elbow, as well as between elbows and Drainage knurled nuts must be provided to provide the necessary establish a tight connection. To do this, it is not only necessary corresponding parts can be connected at all by flanging and the like make, but there are also complex seals required for the Assembly must be observed, otherwise the Odor trap does not work. Overall, it is important to pay close attention to that the knurled nuts are tightened to the described  Ensure odor trap. In addition, the exact seat of the pipes to be interconnected is required, d. H. the connections must exactly match in order to be able to twist the knurled nut at all. Finally, the relatively high production cost for these is disadvantageous Parts that must all be kept in stock by the installer.

Such a drain fitting is known from British Patent 873 172. In this known drain fitting, the adjustment tube itself is in the area of Outflow determined, for which special fasteners are required. The The connection between the adjustment pipe and the pipe bend is then via a Knurled nut made, as well as the connection to the drainage spout, see above that correspondingly complex the elbow with thread and adjusting tube and Drainage pipe with a suitably adapted board have to. At the same time, the position of the pipe bend is due to this training Drainage pipe and to the adjustment pipe. Adjustments to circumstances are not possible. There is a plug connection between the adjustment pipe and the pipe bend not in the sense that the insertion path is predetermined and not in any Way can be changed. So there is no "plug connection", but rather the already mentioned screw connection with the help of a thread and knurled nut that can be placed on it.

The invention has for its object an easy to assemble safely to create a sealing drain fitting that is well adapted to the circumstances.

The object is achieved according to the invention in that between pipe elbows and adjusting pipe on the one hand and between the pipe bend and the drain connection on the other hand, a plug connection is arranged that the elbow both at the end receiving the adjusting pipe as well as at the drain pipe receiving end is provided with at least two beads, each with an O- Are designed to receive the ring and that at least the drainage connection is one has outer bead snap-in between two beads of the pipe bend.

With such a drain fitting, the installation effort significantly reduced and the installation work considerably simplified. Is  a knurled nut in the area of the drain valve body is required to get here make the necessary connection, but this is with a Plug connection combined, so that the actual pipe bend only is plugged in to make the necessary odor-trapping connection effective and easy to manufacture. This is for the assembly of the entire drainage connection only a screw connection is required while the pipe bend at Prior art has three screw connections. In the invention, the Elbow with the adjustment pipe and with the drain pipe only through Insert or plug connected, the double O-ring seal for one Leadership and of course ensures a seal.

It is preferably proposed that the adjustment tube be inserted into the plug connection the pipe bend is designed to be insertable.

The interlocking without problems is particularly given when the Beads spaced apart and the O-rings with more than 50%, preferably 80% of their circumference are formed enclosing. So that is prevents that the O-rings maybe with the insertion of the adjustment tube or the drainage pipe can be taken away from it. Through the special encirclement of the O-rings and their diameter is one accidental taking away and moving with the necessary security locked out.

The insertion of the adjustment pipe and drain pipe into the pipe bend is carried out according to the invention further simplified in that the introducer of the adjustment tube and drainage spigots have an angled portion pointing towards the center of the pipe. This Bending in particular prevents the introducer from touching the O-ring or other parts and then difficult to insert the ends. It is it is advantageously not even necessary to create an insertion funnel, it is enough if the bend is curved, so that the Sliding past the O-rings and the beads to facilitate. Not always can be prevented that the pipe bend and the drain pipe in one stand at a certain angle to each other is independent of any  Position the insertion of the adjustment pipe and drain socket into the pipe bend ensured.

Too far inserting the adjustment pipe and drain socket into the pipe bend is easily prevented by the pipe bend on both ends one provided at a distance from the beads Diameter recess. This is automatically too far Prevents insertion and at the same time the maximum insertion length mandatory.

After a further appropriate training, it is then provided that the Adjusting pipe and the drain pipe made of sheet brass are and that the pipe bend is a plastic pipe component. It is quite conceivable to use a more or less clear plastic, so especially easy with less frequently operated sanitary facilities to be able to check whether the through the water in the U-bend of the pipe bend secured odor trap is always guaranteed. It is conceivable that, as with brass tubes, the individual O-rings with one It facilitates insertion and automatically prevents it from being moved Silicone coating can be provided. It is also conceivable also to manufacture the adjustment pipe and the drainage pipe from plastic, a connection or assembly exactly as described Brass pipes is possible.

Pushing the drain connector into the pipe bend and an exact Positioning is made easier by the fact that the pipe bend on the Plug-in connection with the drain connector, which is bent almost at right angles just like on the opposite connector with a Receiving piece is provided, the wall of which is axially parallel with the Connection wall of slide-in pieces of drain connection and adjustment pipe is progressive. So even with minor deviations exact establishment of the connection between the drain connection and the Sink ensured because of the corresponding training exact insertion and fixing of the pipe bend or a corresponding one  Pushing over the corresponding connectors is guaranteed. Due to the necessary odor trap, the 180 ° elbow is used all sinks and similar facilities are used, the here described and claimed training has the advantage that a results in a precisely defined insertion limit, since the mounting piece of the Pipe bend on the discharge nozzle at the end of an insertion limit for the Insert piece is formed forming. The corresponding insert of the Drainage nozzle is thus precisely recorded, managed and then with the Insertion limit on another insertion into the receptacle hindered. The insertion limitation does not necessarily run around that Receptacle or the pipe bend. Rather, it is enough if the Insert limit is formed by about 50% and then shaped to expire. Thanks to the double O-ring seals used, any Leakage prevents, both in terms of moisture or water as well Gas. The required optimal odor trap is thus achieved.

The 180 ° elbow is the usual component for sinks and. facilities, due to space constraints also deviating solutions are conceivable, for example with bidets. Here comes one expediently Training of the invention for use, which is characterized in that the pipe bend as 100 ° to 150 °, preferably 135 ° bend with a 90 ° - and a 45 ° approach is formed and in which the 45 ° approach with the 45 ° angled drain pipe or its insert corresponding Has receiving piece. This training is therefore also necessary Seal created, where it may still be in the middle of Area of the water column, making its tightness particularly important comes to. The drain connector is also angled accordingly, so that the sealing water column is always present without the quasi automatic insertion and positioning of the pipe bend once on the Drain connector and on the other hand on the adjustment tube of the bidet is affected. With this training, the plug-in options are the same and thus simple and safe assembly is guaranteed. Is also provided here that the pipe bend has a receiving piece, the Wall in each case parallel to the axis with the connecting wall of the insert pieces  is designed to run, so that the described insertion limitation also is achieved here, but at the same time a simple and secure connection in two coupling areas.

The invention is characterized in particular by the fact that a drain fitting is created, the essential advantages over those in terms of assembly of the prior art. Practically without any adjustment of the The newly installed wash basin, for example, can be used to drain the drain Pipe elbows are connected to the drain connection. The pipe bend will simply with its ends on the inlet ends of the drain connector and the Adjustment tube pushed on and the assembly is already completed. Something is missing every need to align the individual pipes exactly because Twist locks or slewing rings are not required. Still is due to the O-rings used and also the flat ring seal Guaranteed that the required odor trap has been reached. Is a Revision necessary or if constipation occurs, you only need the Pull off the elbow, clean it and put it back on. The individual parts of the drain fitting made of plastic or brass getting produced. Regardless of the material is used over the coming seals given the "gas-tight" connection.

Further details and advantages of the subject matter of the invention result from the following description of the accompanying drawing, in which a preferred embodiment with the necessary details and Items is shown. Show it:

Fig. 1 A drainage fixture in a side view, partly in section,

Fig. 2, the junction between adjustment tube and tube sheet in enlarged representation,

Fig. 3 shows the joint between pipe bend and drain socket also in enlarged representation,

Fig. 4 is a representation corresponding to Fig. 1 with a modified receptacle of the pipe bend and

Fig. 5 shows a drain fitting for bidets.

Fig. 1 shows a pipe trap, which is an essential part of a drain fitting 1 . This pipe siphon is connected via a knurled nut 2 to the drain valve body, not shown here, of a wash basin, a sink or a shower tray. This knurled nut 2 is indirectly connected to a pipe bend 3 and then to the drain connector 4 , which is inserted into the wall 17 and sealed off from it by the rosette 16 or closed in an elegant manner.

The pipe bend 3 is connected on both sides via a special plug-in connection 6 , 7 to the drain connection 4 or the drain valve body, not shown. This plug connection 6 is like FIG. 1, but in particular FIGS. 2 and 3 each consist of a double O-ring seal 8 and a double O-ring seal 9 .

To facilitate assembly, it is further provided that the drain valve body, which is not shown here, is connected to the pipe bend 3 via an adjusting tube 10 and is connected to the drain valve body via the knurled nut 2 .

In order to make this connection between the adjustment tube 10 and the drain valve body always tight, the adjustment tube 10 is provided with a flange 11 at the upper end. The flat seal 12 rests on this flange 11 and extends into a recess 14 in the thread 15 in the outer ring region 13 , which is particularly illustrated in FIG. 2. This engagement in the recess 14 ensures that the flat gasket 12 is accommodated with the adjusting tube 10 in a captive manner. At the same time, the area of the thread 15 can thus be effectively sealed.

Via the adjusting tube 10 , it is possible to easily compensate for differences at the drain connection 4 by pushing the adjusting tube 10 more or less far into the pipe bend 3 . Regardless of the slide-in width, the necessary seal is always guaranteed via the double O-ring seal 8 . The design of this double O-ring seal is also explained further with reference to FIGS. 2 and 3, it being clear here that both the end 18 ( FIG. 2) and the end 19 ( FIG. 3) of the pipe bend 3 have beads 20 , 21 or 22 , 23 is equipped.

The beads 20 , 21 and 22 , 23 are arranged at a distance from one another in order to improve the sealing effect and in particular to achieve additional guidance. The O-ring 24 is pushed so far into the bead 20-23 that it is held securely in its position even when the drain connector 4 and the adjusting pipe 10 are inserted into the pipe bend 3 .

According to FIG. 3, an outer bead 25 is arranged at the end 19 between the beads 22 , 23 in the pipe bend 3 , which bead is introduced into the drain connection 4 and engages when the pipe bend 3 is pushed onto the drain connection 4 sufficiently far.

In particular in FIG. 3 it can be seen that the inlet 30 of the drain connector 4 is provided with an angled portion 31 , which is designed to run in an arcuate manner, in order to facilitate the pushing on of the tube elbow 3 with the O-rings 24 . Likewise, the introducer 27 , in the part which is not visible here, is provided with an angled portion 28 which is made toward the center of the tube 29 .

Excessive insertion of the drain connector 4 into the pipe bend 3 or over-pushing the pipe bend 3 is additionally prevented by a diameter recess 33 which is arranged at a relatively small distance from the beads 22 , 23 . Since the adjusting tube 10 is used for regulating during assembly, a corresponding securing bead in the form of a diameter recess 32 is attached here at a substantially greater distance from the beads 20 , 21 . It should be noted that both the beads 20 , 21 as well as 22, 23 are introduced into the pipe bend 3 and indeed relatively close to the end of the pipe bend 3 , so that the production of these parts, whether it is a brass pipe or a plastic pipe is relatively simple.

In particular, FIG. 1 makes it clear to the person skilled in the art that the approximately U-shaped pipe bend 3 can be easily and easily pushed onto the drain connection 4 and the adjusting pipe 10 , even if their position is not as precise as indicated in FIG. 1. With simple steps it can be ensured that the pipe bend 3 is pushed over these ends, the plug-in connection 6 and also 7 being designed to be completely sealing at the same time, so that the pipe bend 3 causes the odor trap after assembly and after the water has been filled in, which he definitely has to portray.

Fig. 4 corresponds in all essential parts of Fig. 1, only that here both ends 18 , 19 of the pipe bend 3 are provided with receptacles 40 , the wall 41 of which extends axially parallel to the connecting wall 42 of the insertion pieces 43 , 44 of drain pipe 4 and adjusting tube 10 .

The receiving piece 40 is designed in such a way that there is an insertion limitation 45 for the insertion piece 44 of the drain connector 4 , as can be clearly seen in FIG. 4. This not only ensures that the fit is always the same, but also facilitates the insertion of the insertion piece 44 into the receiving piece 40 . Not shown, but also mounted, the drain port 4 in the wall, not shown here.

In Fig. 5, both the drain pipe 4 and the pipe bend 3 deviate from the representation of the previous FIGS. 1 to 4, since this is a pipe odor trap with a plug connection for bidets. To save space and because of the other conditions with bidets, the pipe bend here is equipped with the usual 90 ° extension 47 for connection to the adjusting pipe 10 , but at the opposite end 19 with a 45 ° extension 46 . It can be seen in FIG. 5 that the receptacle 48 of this 45 ° extension 46 is also designed in such a way that an insertion limitation 45 results which limits the insertion path of the insertion piece 44 of the drainage piece 4 , which is also angled by 45 °.

Also in the embodiment bidet of FIG. 5 are the two ends 18, 19 and the two connectors 6, 7 double O-ring seals 8, 9 associated, of which the effective water and gas closure is reached. With regard to the details associated with this, reference is made to the statements above. They are the same for all versions.

All of the above-mentioned features, including those that can only be taken from the drawings alone and in combination are regarded as essential to the invention.

Claims (10)

1.Drain fitting ( 1 ) for the sanitary area with a drain valve body inserted into the drain hole of the washbasin, the sink or the shower tray and a pipe bend ( 3 ) connected to it via a knurled nut ( 2 ) and an adjustment pipe ( 10 ) and then and on the pipe bend ( 3 ) fixed drain connection ( 4 ), characterized in that a plug connection ( 6 , 7 ) is arranged between the pipe bend ( 3 ) and the adjusting pipe ( 10 ) on the one hand and between the pipe bend ( 3 ) and the drain connection ( 4 ) that the pipe bend ( 3 ) is provided with at least two beads ( 20 , 21 , 22 , 23 ) on the end ( 18 ) receiving the adjusting pipe ( 10 ) as well as on the end ( 19 ) receiving the drain pipe ( 4 ), each of which has an O-ring ( 24 ) are designed to be accommodating and that at least the drain connection ( 4 ) has an outer bead ( 25 ) which engages between two beads ( 22 , 23 ) of the pipe bend ( 3 ). 2. Drain fitting according to claim 1, characterized in that the adjusting tube ( 10 ) in the plug connection ( 6 ) of the pipe bend ( 3 ) is designed to be insertable. 3. Drain fitting according to claim 1 or 2, characterized in that the beads ( 20 , 21 , 22 , 23 ) are arranged at a distance from one another and the O-rings ( 24 ) are formed with more than 50%, preferably 80% of their circumference . 4. Drain fitting according to one of the preceding claims, characterized in that the introducers ( 27 , 30 ) of the adjustment pipe ( 10 ) and drainage connection ( 4 ) have a bend ( 28 , 31 ) pointing towards the pipe center ( 29 ). 5. Drain fitting according to claim 4, characterized in that the bend ( 28 , 31 ) is arcuate. 6. Drain fitting according to one of the preceding claims, characterized in that the pipe bend ( 3 ) at both ends ( 18 , 19 ) has a diameter recess ( 32 , 33 ) provided at a distance from the beads ( 20 , 21 , 22 , 23 ). 7. Drain fitting according to one of the preceding claims, characterized in that the adjusting pipe ( 10 ) and the drainage pipe ( 4 ) are made of sheet brass and that the pipe bend ( 3 ) is a plastic pipe component. 8. Drain fitting according to one of the preceding claims, characterized in that the pipe bend ( 3 ) on the plug connection ( 7 ) with the approximately right-angled drain connector ( 4 ) as well as on the opposite plug connection ( 6 ) is provided with a receiving piece ( 40 ) , the wall ( 41 ) of which is axially parallel to the connecting wall ( 42 ) of push-in pieces ( 43 , 44 ) of the drain connector ( 4 ) and adjusting tube ( 10 ). 9. Drain fitting according to claim 8, characterized in that the receptacle ( 40 ) of the pipe bend ( 3 ) on the discharge nozzle ( 4 ) is formed at the end of an insertion restriction ( 45 ) for the insertion piece ( 44 ) of the discharge nozzle ( 4 ). 10. Drain fitting according to claim 1, characterized in that the pipe bend ( 3 ) is designed as a 100 ° to 150 °, preferably 135 ° bend with a 90 ° and a 45 ° approach ( 47 , 46 ) and that the 45th ° approach ( 46 ) has a receiving piece ( 48 ) which corresponds to the discharge nozzle ( 4 ) angled by 45 ° or its insertion piece ( 44 ).