AT17437U1 - Connection device for connecting a connection pipe to a main pipe - Google Patents

Abstract

The invention relates to a connecting device (1) for connecting a connecting pipe (101, 102) to a main pipe (100), with a housing (2) which can be mounted on the main pipe (100) and has a spherical disc-shaped inner surface (5), the housing (2) having a Has an opening (6) for inserting the connecting pipe (101, 102) and a tubular outlet (7) facing the main pipe (100), with a pivoting socket (9) which slides in a rotatable manner on the spherical disc-shaped inner surface (5), the pivoting socket (9) has a first receptacle (10) for inserting a connecting pipe (101) with a first outer diameter (33), and with an adapter piece (20) that can be inserted or is inserted into the first receptacle (10), the adapter piece (20) having a second receptacle (21) for inserting a connecting pipe (102) with a second outer diameter (34) and wherein the second receptacle (21) is in the inserted state of the adapter piece (20) inside the housing (2).

Description

description

CONNECTION DEVICE FOR CONNECTING A CONNECTION PIPE TO A MAIN PIPE

The present invention relates to a connecting device, for example designed as a house connection, for connecting a connecting pipe to a main pipe.

Known connection devices, in particular for the house connection, for connecting a connection line (connecting pipe) to a main line (main pipe) are usually designed in a complex manner due to the tightness of the connection between the main pipe and the connection device that has to be provided. In addition, there are different dimensioned connection lines, so that a large number of different connection devices are required.

[0003] EP 0 930 455 A1 shows an exemplary construction for connecting a connecting line to a main line. A ball joint is used to connect the connection pipe. By using the ball joint, it is possible to install the connection pipe stress-free, as it can be bent by a few degrees to the connection direction. If the connection pipe is angled towards the direction of connection, the flow cross section will inevitably be constricted. Such constrictions are disadvantageous, since they impair the hydraulic performance of the entire pipe system.

It is an object of the present invention to provide a connection device for connecting a connection pipe to a main pipe, which enables a connection which is easy to assemble, sealed and can be used in a variety of ways.

[0005] The task is solved by the features of the independent claim. The dependent claims relate to advantageous configurations of the invention.

The invention shows a connecting device for connecting a connecting pipe to a main pipe. The connection pipe is in particular a connection line that leads from a building or shaft to the sewage system. The main pipe is in particular a sewer pipe.

The connection device comprises a housing. The housing is mountable on the main pipe. In particular, a saddle piece is used for this purpose, which is arranged on the main pipe. The housing in turn is preferably screwed to the saddle piece.

The housing has a spherical body. The spherical body has a spherical disc-shaped inner surface. The spherical disc-shaped inner surface has the shape of a hollow sphere, which is cut open on both pole sides. An opening leads into the housing from one side and thus into the area enclosed by the inner surface in the shape of a spherical disk. The opening is used to insert the connection pipe or an adapter piece. Opposite the opening, the inner surface in the shape of a spherical disc merges into a tubular outlet. When installing the connection device on the main pipe, this tubular outlet is to face the main pipe. In particular, it is provided that the tubular outlet has a thread that can be screwed into or onto the saddle piece.

Inside the housing, in particular inside the spherical body of the housing, there is a swivel connector. The swivel connector is rotatably on the spherical disc-shaped inner surface and slides on this surface. As a result, the spherical disk-shaped inner surface and the pivoting socket form a ball and socket joint. The pivoting connector can be pivoted by a few degrees in any direction, so that a connecting pipe stuck in the pivoting connector can be angled in relation to the connection direction. The connection direction corresponds to the longitudinal axis of the tubular outlet or the plumb line on the main pipe.

[0010] The swivel connector has an annular first receptacle for inserting a connecting pipe with a first outside diameter. For this purpose, the pivoting socket is designed in particular as a hollow, ring-shaped body, so that the connecting pipe can be inserted into the pivoting socket

zen is pluggable. The inside diameter of the first receptacle is designed in particular for the tight insertion of a connecting pipe with an outside diameter of 200 mm.

[0011] Furthermore, the connecting device comprises the adapter piece already mentioned. Instead of the connection pipe with the first outside diameter, the adapter piece can be inserted into the first receptacle of the pivoting connector. In particular, the adapter piece is in the basic state of the connecting device in the pivoting socket and is only removed from the pivoting socket when the connecting pipe described above with the first outside diameter is to be inserted. The adapter piece is in particular an internally hollow, ring-shaped body which can be inserted into the first receptacle in a sealing manner. Furthermore, it is preferably provided that the adapter piece can be removed from the pivoting connection piece without being destroyed. In particular, the adapter piece can be dismantled without tools, ie without tools.

The adapter piece has a second receptacle on its inner surface. This second receptacle is designed for the tight insertion of a connecting pipe with a second outer diameter. This second outside diameter is smaller than the first outside diameter. In particular, the second receptacle is designed for inserting a connecting pipe with an outside diameter of 160 mm.

The adapter piece sits inside the swivel socket or is designed to be plugged into the swivel socket. When inserted, the adapter piece is inside the housing. Provision is made for the second receptacle to be located inside the housing when the adapter piece is in the inserted state. The connection between the inserted connecting pipe and the adapter piece is therefore inside the housing and thus also inside the ball joint. This ensures that the connection between the adapter piece and the plugged-in connection pipe is subjected to as little stress as possible when the ball joint is angled out or moved, and thus remains as tight as possible.

In addition, the adapter piece offers the advantage that the connection device can be used both for the larger connection pipe (for example DN200) and for the smaller connection pipe (for example DN 160). The larger connection pipe can only be inserted by simply removing the adapter piece.

[0015] The adapter piece preferably has, on its inlet side facing the connection pipe, an extension which projects beyond the pivoting connection piece. This extension interacts with a pivoting stop of the housing to limit the pivoting movement of the pivoting connection piece, in that the extension bears against the pivoting stop at the maximum pivoting angle.

In particular, the extension with the outer diameter of the first connection pipe protrudes from the pivoting connector to such an extent that an increased deflection compared to the first outer diameter is avoided. This will prevent the swivel fitting from leaking due to excessive deflection.

Preferably, the adapter piece has an extension with a divergence area at its end facing the outlet. This divergence area has a steplessly expanding inner diameter. The divergence area is designed in particular in such a way that the flow cross section does not constrict at the maximum possible deflection of the connecting pipe.

The divergence region preferably extends from an end facing the inlet to an end facing the outlet. The divergence area preferably has its smallest divergence inner diameter at the inlet-side end. At the outlet-side end, the divergence area preferably has its largest divergence area inner diameter. The smallest inside diameter of the divergence area preferably corresponds to the inside diameter of the connecting pipe to be inserted.

[0019] In the direction of the outlet, the divergence area preferably protrudes beyond the swivel connection piece. The divergence area thus extends further in the direction of the outlet than the pivoting connector.

Furthermore, it is preferably provided that the outlet-side end of the divergence area is arranged in the area of the inner surface in the shape of a spherical disk. This means that the divergence area preferably does not protrude into the outlet, but is located completely within the spherical body and thus completely within the inner surface in the shape of a spherical disc. As a result, the end of the divergence area on the outlet side moves within the inner surface in the shape of a spherical disk when the ball and socket joint is pivoted. Due to this design and the fact that the divergence area extends in the direction of the outlet beyond the swivel connector, the divergence area leads as close as possible to the spherical disk-shaped inner surface and avoids a constriction of the flow cross section in the entire swivel area.

The largest divergence area inner diameter is preferably adapted to the outlet inner diameter of the outlet. In this case, the tubular outlet preferably has a constant outlet inner diameter. The spherical disc-shaped inner surface preferably merges into this tubular outlet.

It is preferably defined that a ratio of the largest divergence area inner diameter to the outlet inner diameter is between 0.80 and 1.20, preferably between 0.85 and 1.15, particularly preferably between 0.90 and 1.10 . Provision is particularly preferably made here for the ratio to be greater than 1, so that the largest divergence area inner diameter is somewhat larger than the outlet inner diameter.

Furthermore, it is preferably provided, in particular to avoid constriction of the cross section as far as possible, that the smallest divergence area inner diameter is at most 0.95, preferably at most 0.90, particularly preferably at most 0.85, of the outlet inner diameter.

The adapter piece preferably has a stop for the connecting pipe to be inserted. In particular, this connection forms the outlet-side end of the second receptacle.

[0025] Furthermore, the second receptacle preferably has a seal. The connection pipe can be inserted into this second seal, with the seal sealing the connection pipe and adapter piece.

The adapter piece preferably has only one annular base body. This is made as an injection molded part. In addition to this base body, the adapter piece can have the seal described. The seal is either inserted into a seal groove in the base body or manufactured together with the base body in a 2-component injection molding process.

[0027] The swivel connector preferably has a receptacle as a stop for the larger of the two connecting pipes. This stop can preferably also be used as a stop for the adapter piece to be inserted.

Furthermore, it is preferably provided that the pivoting connector has a seal in the first receptacle. The seal seals between the adapter piece and the swivel connector. If the adapter piece is not used, this seal seals between the connection pipe (e.g. DN200) and the swivel connection.

It is preferably provided that the swivel connector consists of only one annular base body. This base body is manufactured as an injection molded part. The base body can have a sealing groove for inserting a seal. Alternatively, it is also possible to manufacture the base body together with the seal using a 2-component injection molding process.

[0030] A seal can be arranged on the outside of the pivoting connector between the pivoting connector and the inner surface in the shape of a spherical disc. In particular, for this purpose the pivoting connector has a sealing groove open to the outside for inserting this seal.

Further details, advantages and features of the present invention result from the following description of an embodiment with reference to the drawing. It shows:

1 shows a connection device according to the invention on a main pipe with the first connection pipe inserted,

[0033] FIG. 2 shows the connection device according to the invention with an adapter piece and an inserted second connection pipe, and

[0034] FIG. 3 shows the connection device according to the invention with adapter piece and inserted second connection pipe at maximum deflection.

In the following, a connection device is described in detail with reference to FIGS. 1 to 3 according to the exemplary embodiment.

Fig. 1 shows a main pipe 100, a first connection pipe 101 (e.g. DN200) and the connection device 1. The connection device 1 comprises a housing 2 and a saddle piece 3. The saddle piece 3 rests on the inside of the main pipe 100 and extends through a Opening in the main pipe 100 to the outside. The housing 2 is screwed into the saddle piece 3 with an external thread 8 .

The housing 2 has a spherical body 4 . In the interior of the spherical body 4, a spherical disc-shaped inner surface 5 is formed. On one side, an opening 6 leads into the area formed by the inner surface 5 in the shape of a spherical disk. On the opposite side, the inner surface 5 in the shape of a spherical disc merges into a tubular outlet 7 .

On the outside of the tubular outlet 7 is the external thread 8 for screwing into the saddle piece 3.

In the interior of the spherical body 5 there is a pivoting socket 9. The pivoting socket 9 rests on the spherical disc-shaped inner surface 5 in a sliding manner and thus forms, together with the spherical disc-shaped inner surface 5, a ball and socket joint.

The inner surface of the swivel connector 9 is designed as a first receptacle 10 . This first receptacle 10 extends to a first stop 12 (see FIG. 2). Furthermore, there is a first sealing groove 11 in the first receptacle 10, in which an annular seal can be inserted.

The first connection pipe 101 can be inserted into the first receptacle 10, through the first seal, up to the first stop 12. In the exemplary embodiment shown, the first connection pipe 101 has a first outer diameter 33 of 200 mm.

An outer sealing groove 13 for receiving a corresponding annular seal is provided on the outside of the pivoting socket 9 .

In FIGS. 2 and 3, it is not the first connection pipe 101 that is inserted in the pivoting socket 9 and thus in the first receptacle 10, but rather an adapter piece 20. The adapter piece 20 has a second receptacle 21. The second receptacle 21 is located inside the housing 2.

The second receptacle 21 has a second sealing groove 22 . An annular second seal is placed in this second seal groove 22 .

The second receptacle 21 extends to a second stop 23. A second connecting pipe 102, in the example shown with a second outer diameter 34 of 160 mm, is inserted into the second receptacle 21 of the adapter piece 20. The second connection pipe 102 extends through the second seal up to the second stop 23.

2 and 3, the seals are hidden for the sake of clarity, but their position is given by the corresponding seal grooves.

On the inlet side, an extension 35 is present on the adapter piece 20 on the side facing the connecting pipe 102 , which cooperates with a swivel stop 36 of the housing 2 to limit the angular mobility of the swivel socket 9 . A divergence area 24 is formed on the adapter piece on the outlet side. This divergence area 24 extends from its inlet-side end 25 to its outlet-side end 26. In the exemplary embodiment shown, the inlet-side end 25 of the divergence area 24 is directly at the

second stop 23 positioned.

The divergence area 24 extends in the direction of the outlet 7 beyond the pivoting connection piece 9 . However, the divergence area 24 still ends with its outlet-side end 26 inside the spherical disc-shaped inner surface 5.

The divergence area 24 has a smallest divergence area inner diameter 30 at the end 25 on the inlet side. At the end 26 on the outlet side, the divergence area 24 has a largest inner diameter 31 of the divergence area. The tubular outlet 7 has an inner outlet diameter 32 . The ratios of these diameters have already been explained in detail in the general part.

REFERENCE LIST

1 connection device

2 housing

3 saddle piece

4 spherical bodies

5 spherical disc-shaped inner surface 6 opening

7 outlet

8 external threads

9 swivel nozzles

10 first shot

11 first seal groove

12 first stop

13 Outer Seal Groove

20 adapter piece

21 second recording

22 second seal groove

23 second stop

24 divergence area

25 inlet end

26 outlet end

30 smallest divergence area inner diameter 31 largest divergence area inner diameter 32 outlet inner diameter

33 first outer diameter

34 second outer diameter

35 Inlet Side Extension

36 pan stop

100 main tube

101 first connecting tube

102 second connecting pipe

Claims (13)

Expectations 1. Connection device (1) for connecting a connection pipe (101, 102) to a main pipe (100), * with a housing (2) that can be mounted on the main pipe (100) and has a spherical disk-shaped inner surface (5), the housing (2) having an opening (6) for inserting the connecting pipe (101, 102) and a tubular one facing the main pipe (100). outlet (7), * with a swivel connector (9) which slides in a rotatable manner on the spherical disk-shaped inner surface (5), the swivel connector (9) having a first receptacle (10) for inserting a connecting pipe (101) with a first outer diameter (33), * and with an adapter piece (20) that can be inserted or used in the first receptacle (10), the adapter piece (20) having a second receptacle (21) for inserting a connecting pipe (102) with a second outer diameter (34) and the second receptacle (21) is in the inserted state of the adapter piece (20) inside the housing (2). 2. Connection device according to claim 1, wherein the adapter piece (20) has on its side facing the connection pipe (102) an extension (35) which protrudes beyond the swivel socket (9) and which is connected to a swivel stop (36) of the housing (2) for limiting the angular mobility of the pivoting connection piece (9). 3. Connection device according to claim 1 or 2, wherein the adapter piece (20) at its end facing the outlet (7) has a divergence area (24) with an inner diameter that continuously widens. 4. Connection device according to claim 3, wherein the divergence area (24) protrudes in the direction of the outlet (7) beyond the swivel connector (9). 5. Connection device according to one of claims 3 or 4, wherein the outlet-side end (26) of the divergence area (24) is arranged in the area of the spherical disc-shaped inner surface (5). 6. Connection device according to one of claims 3 to 5, wherein the divergence area (24) at its outlet end (26) has a largest divergence area inner diameter (31), wherein the outlet (7) has an outlet inner diameter (32), wherein a ratio of the largest divergence area inner diameter (31) to the outlet inner diameter (32) is between 0.80 and 1.20, preferably between 0.85 and 1.15, particularly preferably between 0.90 and 1.10. 7. Connection device according to one of claims 3 to 6, wherein the divergence area (24) at its inlet end (25) has a smallest divergence area inner diameter (30), wherein the outlet (7) has the outlet inner diameter (32), wherein the smallest divergence area inside diameter (30) is at most 0.95, preferably at most 0.90, particularly preferably at most 0.85, of the outlet inside diameter (32). 8. Connecting device according to one of the preceding claims, wherein the adapter piece (20) has a stop (23) for the connecting pipe (102) to be inserted. 9. Connection device according to one of the preceding claims, wherein the adapter piece (20) from the swivel connector (9) can be dismantled non-destructively. 10. Connection device according to one of the preceding claims, wherein the adapter piece (20) consists of only one annular base body as an injection molded part, with a seal preferably being inserted into the base body in the second receptacle (21) or integrated into the base body using the two-component injection molding process. 11. Connection device according to one of the preceding claims, wherein the pivoting connector (9) consists of only one annular base body as an injection molded part, with a seal preferably being inserted into the base body in the first receptacle (10) or integrated into the base body using the two-component injection molding process. 12. Connection device according to one of the preceding claims, comprising a saddle piece (3) to be fastened to the main pipe (100), the tubular outlet (7) of the housing (2) having an external thread (8) which can be screwed into the saddle piece (3). 13. Connection device according to one of the preceding claims, wherein the first receptacle (10) is designed for the sealed insertion of a connecting pipe (101) with an outer diameter of 200 mm and the second receptacle (21) for the sealed insertion of a connecting pipe (102) with an outer diameter of 160 mm is trained. 3 sheets of drawings