DE202013012719U1 - Conduit arrangement with a tapping clamp - Google Patents

Abstract

Conduit arrangement (1) with a tapping clamp (2), for a conduit (3), comprising a clamping bracket (6) and a connection part (5) with connection opening (13), wherein the clamping bracket (6) and the connecting part (5) releasably to each other the conduit (3) can be coupled and at the connection opening (13) a connection piece (8) rotatable relative to the conduit (3) is provided for coupling to a connecting conduit (4), characterized in that the conduit (8) has a connection Coupling means with the connection part (5) non-positively fixed in position is coupled and the coupling means as a plate (9) is formed so that it in the connection part (5) positively received pipe socket (11) of the connecting piece (8) engages around.

Description

The present invention relates to a line arrangement with a tapping clamp according to the preamble of claim 1.

For building connections, building connection lines are connected to already installed supply lines. For this purpose, usually upstream of the buildings or laid in the public road network supply lines that transport various media. For example, these may be gas pipes or else water pipes or district heating pipes. Thus, such a supply line has a conduit through which a medium flows.

Now, if the house connection itself made, it is necessary to tap corresponding pipes of the supplier, in particular, for example, a water supply line. However, this is subjected to a pressure, so that the utility supplied by this conduit usually not only the one house connection, but the conduit is a part of an entire supply network. It can thus be on a conduit the implementation of the medium, here for example water, completely stopped or turned off, as this would lead to a uniform renunciation of the other connected to the mains power consumers.

For this purpose, tapping sleeves are known from the prior art, which, for example, in the DE 197 108 72 C1 or the DE 430 99 41 A1 are disclosed. In such a tapping clamp, a connection part is first attached to the existing conduit and fixed with a further clamp or a clamping bracket on this position secure. Then, a drill is guided through a connection opening, which drills the existing conduit and produces a corresponding passage for the guided through the conduit medium. After opening, the drill bit is slowly moved out of the tapping saddle. At the tapping clamp there is a connection piece to then supply the media tapped through the conduit pipe via the tapping saddle to the building or another use via a connection line. Furthermore, from the DE 34 33 631 A1 a connection fitting with rotatable connection piece known.

Object of the present invention is to develop a well-known from the prior art tapping clamp such that a thus produced building connection safely and properly, regardless of the location of the tapping of the conduit can be produced.

The aforementioned object is achieved according to the invention with the features of a line arrangement in the claim.

Advantageous embodiments of the present invention are part of the dependent claims.

The line arrangement with a tapping clamp for a conduit has a clamping bracket and a connection part with connection opening, wherein the clamping bracket and the connection part are releasably coupled to one another the conduit tube. According to the invention it is now provided that at the connection opening a rotatable relative to the conduit connecting piece is arranged for coupling to a connecting line and that the connecting piece is rotatably mounted in the connector and for final assembly of the connecting piece relative to the connector via a coupling means is fixed in position fixable.

According to the invention, in comparison with connection arrangements known from the prior art, the advantage is achieved that in particular the connection line for the production of the building connection, also referred to below as house connection line, does not have to be led out of the conduit at right angles to the building. Due to the rotatable design of the connecting piece, it is possible to choose the connection to the conduit independently of the relative position of conduit and building to each other.

In the context of the invention, a pipe is to be understood as a conduit of a supply line. The connecting part and the clamping bracket are known from the prior art as a fitting and holding piece in a tapping clamp. In particular, the connecting piece according to the invention is designed as a valve housing, so that, on the one hand, a connecting line to the building can be connected to the connecting piece and, on the other hand, a valve can be inserted into it. The valve is preferably a service shut-off, so that the respective building connection can already be shut off at the tapping point, in particular at the connecting piece, and thus the entire connecting line is prevented from further conveying the medium.

Due to the rotatability of the connecting piece, it is thus initially possible to arrange the tapping clamp according to the invention substantially perpendicular to the building, relative to the pipe, and then to arrange the connecting pipe perpendicularly from the pipe to the building. Should this from local conditions, for example by collision of different Connection cables or problems in civil engineering not be possible or another tapping point on the pipe to be chosen such that a shorter connection line of pipe to the building must be performed, it can in the context of the invention, the angle in which the connecting piece of the connecting line of leading away from the conduit can be chosen arbitrarily. For example, the connecting line may also initially run parallel to the conduit and then be guided by a self-curvature or an angle in the connecting line in turn in a different direction.

In the context of the invention, this means in particular that between the central longitudinal axis of the conduit and the central longitudinal axis of the connecting line initially a distance is formed, however, the angle in plan view between the two pipes is then arbitrarily selected, due to the rotation of the connecting piece according to the invention.

First, however, a portion of the pipe, which is usually laid underground, exposed for installation and the tapping clamp attached. For this purpose, a seal is arranged on the tapping clamp, which seals a surface portion of the conduit by the positive coupling of tapping clamp with clamp such that thereby no medium can escape. Then, a drill is performed through the connection opening, which serves for drilling the conduit. In particular, drinking water pipes up to PN16 or, alternatively, also gas supply pipes, in particular with an operating pressure of up to five bar, are tapped with the tapping saddle according to the invention. Since the drill has created a corresponding opening in the conduit, the tapping device seals the opening from leakage of the fluid. If the drill were now removed, the fluid would pass unhindered over the created opening in the conduit and then out of the port.

For this purpose, a slide seal is arranged in the connection opening, so that the drill bit is moved slightly out of the connection opening and then the slide seal, which is designed in particular as a windable flat slide seal, is moved into the connection opening and seals it from the environment. The medium can thus not escape through the drill still located in the connection opening and further inflowing medium is ultimately prevented by the flat slide seal at a further outlet.

It is then possible that the connecting piece according to the invention is already arranged on the connecting part during the drilling process or is coupled to the connecting piece only after the drilling operation or at least partially engages with a positive fit in the connecting piece. In particular, there is then the invention essential advantage. Regardless of the position of the building, the direct discharge direction of the connection line from the conduit can now be selected by the rotatability of the connection piece. For example, the connecting line may initially be arranged piecewise parallel to the conduit, in particular above or else below the conduit, or at any angle between 0 degrees and 90 degrees with respect to the central longitudinal axis of the conduit. As a result, in particular stress conditions are avoided, which are caused by a slight bending of sometimes only one or two degrees of the connecting line relative to the fixed connection piece and can thus lead in the long term to microcracks or leaks. In civil engineering on site, this may already be caused by a few mm or cm of the offset of the connecting line, this problem is circumvented due to the rotatable connection piece. In the context of the invention, it is also possible to rotate the connection piece arbitrarily by 360 degrees with respect to the tapping point.

The connection line itself can be accommodated in the connecting piece in a form-fitting and / or non-positive manner and stored fixed in a fluid-tight manner. The connection line can be, for example, a plastic pipe or even a metallic pipe, for example steel pipe, copper pipe or else light metal pipe. In particular, the connection line is connected in a fluid-tight manner to one another by means of a coupling method known from the prior art, for example a plug-in seal or even a clamping seal. This is dependent on the medium to be transported and the standard of the pipeline specified with it.

Furthermore, particularly preferably, the connecting piece is rotatably and fluid-tightly coupled to the connecting part. For this purpose, the connecting piece in particular a pipe socket, wherein the pipe socket is received positively in a nozzle receiving or bore of the connection opening. Furthermore, particularly preferably, at least one radially encircling seal is arranged on the pipe stub, particularly preferably two radially encircling seals, for example O-rings, are arranged on the pipe stub. As a result, a fluid-tight coupling between the connection piece and the connection part is ensured.

Now, it is necessary for the secure fixing of the position of the line assembly thus produced but also when using an auxiliary shut-off, for example by using a valve that the connection piece and the connection part must be arranged fixed relative to each other positionally fixed. This is possible in the context of the invention both by a frictional as well as by a positive and / or a material-liquid coupling.

Preferably, a combined positive and non-positive coupling, after which at first the connection piece is at least partially rotatable by and in particular 360 degrees to and / or stored in the connection part. Then, after positioning and possibly before, during or after the coupling of connecting line with connection piece, it is then possible via a coupling means to produce a positive and / or non-positive connection between the connection piece and connection part such that both parts are firmly and positionally fixed to each other.

In particular, the coupling means for this purpose is designed as a plate, very preferably in the form of a U-shaped clamp or a clamp. The clamping bracket comprises the pipe socket of the connection line, in particular in a groove, so that the clamping bracket during assembly of the tapping sleeve according to the invention is laterally slid over the pipe socket and thereby receives in its U-shaped cutout the groove of the pipe socket. This results in an axial positive connection. Then, preferably, the U-shaped clamp or the clamp is fixed in position on particular screw connections to the connector part and by further tightening the screw, the connection piece is moved axially in the direction of the conduit and finally made a non-positive connection between the connecting piece and connector. In particular, there is an axial and / or radial clamping, so that a combined positive and non-positive connection is made and the connecting piece is fixed in the relative position in the connecting part and thus also fixed in position relative to the conduit.

An alternative or supplementary embodiment provides additional positive coupling means, for example in the manner of a toothing, before. For example, this toothing can be formed axially or radially so that the connection piece can be arranged stepwise or in a toothed manner in any desired angular arrangement with respect to the conduit. For example, with a 36-tooth pitch, the offset about one tooth can cause a pivoting movement of 10 degrees. Alternatively, a finer toothing or a coarser toothing may be formed, for example, that angle ranges of 25 degrees, 45 degrees and 75 degrees and / or 90 degrees are possible. An additional adjustment by means of a screw connection and / or a clamping bracket is then prevented or even prevented that the connection piece is carried out due to the pressure of the conduit from the connection part. The connection piece can for example be fixed in position with a grub screw.

Further particularly preferred is provided at the front end of the pipe socket to arrange a corresponding seal in the axial direction. This seal then takes over two functions in the receiving trough for the pipe socket within the connection opening. On the one hand, a further fluid-tight coupling is produced by the axial seal, on the other hand, a frictional connection between the end face of the pipe socket and the corresponding corresponding groove bottom in the receptacle of the connection opening is made on the axial seal, which prevents twisting of the connecting piece upon application of a corresponding force ,

In the context of the invention, it is particularly preferred to produce the tapping point and the clamping bracket and the connecting piece as a cast component. This allows a particularly cost-effective production, especially at high volumes. In the context of the invention, however, it is also conceivable that the abovementioned components can be produced from any metallic material or even from plastic material. It is also possible that the tapping clamp and the connecting piece are made with a metal-cutting process or a plastic casting process or plastic injection molding. However, preference is given to a nodular cast iron method, in particular according to the standard EN-JS-1050GGG50.

The non-metallic seals are formed in particular from an elastic material, preferably rubber material, very particularly preferably from a rubber material. In the context of the invention, however, it is also conceivable in particular for a metallic seal, for example of a brass or copper material, to be used for the axial seal.

In the case of the use of metallic materials, which offer a particularly cost-effective way of producing the tapping clamp in terms of processability as a cast component and in particular in large quantities, these are particularly preferably corrosion-resistant coated. In particular, an anti-corrosion coating based on epoxy resin, which is applied in powder coating processes, is used here. In this case, a layer thickness of at least 250 μm is particularly preferably applied to the surface of the corresponding metallic outer surfaces. This ensures that the tapping sleeve according to the invention provides a secure and fluid-tight coupling with the conduit even for decades. In the context of the invention, it is also possible that the corrosion protection coating is applied to the inside and / or outside. Preferably, a corrosion protection coating is applied on an inner side and on an outer side. As an alternative to the corrosion protection coating based on epoxy resin, it is possible within the scope of the invention to apply an enamelled surface. Preferably, a layer thickness between 200 .mu.m and 300 .mu.m, most preferably of 250 .mu.m is also preferably applied here.

• 1 erfindungsgemäße Leitungsanordnung in einer perspektivischen Ansicht,
• 2 die Leitungsanordnung in einer Querschnittsansicht,
• 3 eine erfindungsgemäße U-förmige Platte und
• 4 eine schematische Draufsicht auf eine erfindungsgemäße Leitungsanordnung.

Further advantages, features, characteristics and aspects of the present invention are the subject of the following description. These are for easy understanding of the invention. All of the above-mentioned and subsequently listed features can be combined with one another as desired within the scope of the invention without leaving the total disclosure content. Preferred embodiments are shown in schematic figures. Show it:

• 1 inventive line arrangement in a perspective view,
• 2 the conduit arrangement in a cross-sectional view,
• 3 a U-shaped plate according to the invention and
• 4 a schematic plan view of a conduit arrangement according to the invention.

1 shows a conduit arrangement according to the invention 1 , where a tapping clamp 2 on a conduit 3 is attached and from the tapping clamp 2 leading away a connection line 4 is arranged. The tapping clamp 2 has a connection part 5 on, as well as one with the connection part 5 positively coupled clamping bracket 6 , where clamping bracket 6 and connection part 5 the outer circumferential surface 7 of the conduit 3 are arranged in a form-fitting manner. According to the invention, it is now provided that a connecting piece 8th in the direction of rotation D relatively rotatable relative to the connecting part 5 is stored. In the variant shown here is the connection piece 8th freely rotatable through 360 degrees to the connection part 5 educated. So now after installation or during the installation of the connecting piece 8th relative to the connector 5 is position fixable, is a U-shaped plate 9 , also shown in 3 , by means of screw connections 10 at the connection part 5 stored.

The functionality is in 2 clearly visible within the cross-sectional view. Here you can see that the U-shaped plate 9 by means of the screw connections 10 in the axial direction A the rotatable connection piece 8th press down on the center of the picture and exert a clamping force on it. This will be a pipe socket 11 of the connecting piece 8th in a recording 12 the connection opening 13 positive fit, in particular in the radial direction R , as well as friction-locked fixed in position. At the pipe socket 11 are outside circulating two radial seals 14 , here in the form of O-rings, arranged. At the end of the pipe socket 11 is an axial seal 15 arranged, with the axial seal 15 can also be used, compared to a groove bottom 16 the on the front surface 17 of the pipe socket 11 to generate a clamping force A support shoulder surface 24 at the connection part 5 and one opposite the pipe socket 11 protruding clamping bar 25 can alternatively to the clamping between groove bottom 16 and face 17 or in addition to this so in the axial direction A be jammed together, that a rotational movement D around the axis of rotation There of the connecting piece 8th is prevented. Also shown is a flat slide seal 18 in the radial direction R is extendable and thus in the conduit 3 generated borehole 19 at least temporarily closes, so that in the conduit 3 located medium M initially not out of the conduit during the installation process 3 can step out. In the connection piece 8th is also at a top end of a valve 20 arranged, here in the form of a plant shut-off. Using the valve 20 It is possible, an external, not shown access from the outside here on the image plane coming from above, the connection piece 8th in particular the connection opening 13 within the connecting piece 8th shut off. This can be used, for example, to replace the connecting cable 4 carried out or even during initial commissioning, the first valve 20 be closed and after installation of the connecting cable 4 then can the valve 20 be opened. The connection cable 4 is shown here with a screw connection 21 with the connecting piece 8th coupled. Also shown is a distance a between the central longitudinal axis 22 the connection line 4 and the central longitudinal axis 23 of the conduit 3 ,

Is shown in 4 a plan view of a conduit arrangement according to the invention 1 , Good to see here is the inventive function of the rotatable connection piece 8th , which with the tapping sleeve according to the invention 2 is coupled. This makes it possible, the connection piece 8th in the direction of rotation D to turn that way desired angle β between the central longitudinal axis 23 of the conduit 3 and the central longitudinal axis 22 the connection line 4 is adjustable. Thus, it becomes possible from the prior art, not only from the conduit 3 or the central longitudinal axis 23 of the conduit 3 from perpendicular to 90 degrees angle the connecting line 4 away, but at any angle β which is selectable in the range between 0 degrees to 360 degrees.

LIST OF REFERENCE NUMBERS

1 -

line arrangement

2 -

Tapping saddle

3 -

Pipeline

4 -

connecting cable

5 -

connector

6 -

tensioning bow

7 -

Outer lateral surface to 2

8th -

spigot

9 -

plate

10 -

screw

11 -

pipe socket

12 -

admission

13 -

port opening

14 -

radial seal

15 -

axial seal

16 -

groove base

17 -

Face to 11

18 -

Flat slide seal

19 -

well

20 -

Valve

21 -

screw

22 -

Center longitudinal axis to 4

23 -

Center longitudinal axis to 3

24 -

Bearing shoulder surface

25 -

clamping web

D -

direction of rotation

There -

axis of rotation

A -

axially

R -

radial direction

M -

medium

a -

distance

β -

angle

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 19710872 C1 [0004]
• DE 4309941 A1 [0004]
• DE 3433631 A1 [0004]

Claims (11)

Conduit arrangement (1) with a tapping clamp (2), for a conduit (3), comprising a clamping bracket (6) and a connection part (5) with connection opening (13), wherein the clamping bracket (6) and the connecting part (5) releasably to each other the conduit (3) can be coupled and at the connection opening (13) a connection piece (8) rotatable relative to the conduit (3) is provided for coupling to a connecting conduit (4), characterized in that the conduit (8) has a connection Coupling means with the connection part (5) non-positively fixed in position is coupled and the coupling means as a plate (9) is formed so that it in the connection part (5) positively received pipe socket (11) of the connecting piece (8) engages around. Line arrangement according to Claim 1 , characterized in that through the connection opening (13) a drill for tapping the conduit (3) in this mounted tapping sleeve (2) can be guided, wherein the tapping sleeve (2) has a slide seal (18), which after tapping the conduit (3) the connection opening (13) seals. Line arrangement according to Claim 1 or 2 , characterized in that in and / or on the connection opening (13) a relative to the tapping clamp (2) and / or the conduit (3) rotatable connecting piece (8) can be arranged. Line arrangement according to one of Claims 1 to 3 , characterized in that the connecting piece (8) is rotatably and fluid-tightly coupled to the connecting part (5). Line arrangement according to one of the preceding claims, characterized in that the connecting piece (8) is rotatably mounted in the connecting part (5), wherein for the final assembly of the connecting piece (8) relative to the connection part (5) is fixable in position. Line arrangement according to one of the preceding claims, characterized in that the connecting piece (8) is positively fixed and / or non-positively and / or cohesively fixed to the connection part (5). Line arrangement according to one of the preceding claims, characterized in that the plate (9) is designed as a U-shaped plate (9) Line arrangement according to one of the preceding claims, characterized in that the coupling means is coupled via a screw connection (10) to the connection part (5) and by tightening the screw connection (10) between the pipe socket (11) and the connection part (5) a frictional connection is trained. Pipe arrangement according to one of the preceding claims, characterized in that a valve (20) is arranged in or on the connecting piece (8), with which the connecting piece (8) can be closed. Line arrangement according to one of the preceding claims, characterized in that at least one radially encircling seal (14) is arranged on the pipe socket (11), in particular two radially encircling seals (14) are arranged on the pipe socket (11). Line arrangement according to one of the preceding claims, characterized in that a seal (15) is arranged at the end of the pipe socket (11) between its end face (17) and the connection opening (13).

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