DE202011102832U1 - Channel system unit - Google Patents

Abstract

Channel system unit consisting of a concrete body in which at least two plastic inner pipes are cast.

Description

The invention relates to a duct system unit in which a plurality of sewer pipes are combined.

Both concrete and plastic pipes are known. Plastic pipes are mainly drawn from plastic, while the concrete pipes are made in a per se known, upright form with a movable core. These pipes, which are mainly used in drainage systems, are subject to increasingly stringent environmental protection requirements that are barely adequate to meet today's needs. This is mainly because they corrode faster under increasingly aggressive and highly acidic water and thus leaking or destroyed. However, such corrosion also necessitates constant replacement and, finally, re-laying of new pipes more often than was necessary just a few years ago. To avoid these disadvantages, it has already been known to produce concrete pipes in conjunction with a plastic pipe. Since these pipes are rigidly connected in the usual way as concrete pipes inserted with their one spigot in the next muff-shaped wide pipe end, these spigots are easy to break.

From the DE-U-8 132 729 a concrete pipe is already known with a corrosion-resistant inner lining consisting of a plastic pipe, one end of which is designed as a pipe tip end part and the other end as a pipe socket end part for receiving a pipe tip end part of the following pipe.

From the DE-U-8 806 158 is a pipe made of concrete with a corrosion-resistant inner lining made of plastic, in which an intimate union between the concrete shell and the plastic lining takes place.

Finally, out of the DE 20 2004 003 139 U1 a concrete pipe with a corrosion-resistant inner lining made of a plastic with Rohrspitz end part and pipe socket end part known in which the existing plastic inner lining and the pipe socket end portion of the concrete pipe is lined.

It is an object of the present invention to provide a ducting system unit which combines the advantages of the aforesaid interior lining concrete pipes with a simplification of laying a plurality of parallel pipelines.

According to the invention, this object is achieved in that a channel system unit consisting of a concrete body, in which at least two plastic inner tubes are cast, is provided.

According to the invention, the corresponding tubes can be laid to save space in the event that several concrete pipes with corrosion-resistant inner lining to be installed in parallel. Due to their compact design in the integrated duct system unit, the corresponding trench in which the pipelines must be routed can be made narrower than in the case where two parallel trenches are pulled. The duct system unit according to the invention makes it possible to simplify the laying of several parallel pipelines substantially, since in each case with the laying of a unit several parallel pipelines are created.

From the subsequent to the main claim subclaims advantageous embodiments of the invention.

Accordingly, the concrete body may have a polygonal, preferably rectangular cross-section. The resulting elongated parallelepiped shape is on the one hand simple to produce in terms of shape and on the other advantageous in terms of storage, since the individual channel system units can be stacked in a simple manner. However, it is also possible to choose any other polygonal cross sections, with polygonal cross sections offering themselves here in particular in the case of a multiplicity of parallel plastic inner tubes.

Alternatively, the concrete body can also have a circular or elliptical cross section, in which case cross sections with an arcuate contour should be included.

The running in the concrete body plastic inner tubes advantageously have different diameters. Accordingly, they can serve different functions according to their diameter. On the one hand, it may be sewage pipes and on the other hand to corresponding cable ducts or the like. But any other typical use of piping can be realized by the channel system unit according to the invention.

Advantageously, at the channel system unit at its one end over the end wall projecting Rohrspitz end portions and at its other end pipe socket end portions for receiving the Rohrspitz end portions of the following channel system unit is formed, wherein on the end wall with the Rohrspitz- End portions of the plastic inner tubes to survive a supernatant. As a result, the channel system units can be connected to each other in a simple manner.

Particularly preferably, the plastic inner tubes are surrounded in the region of their over the end face of the channel system unit protruding supernatant in a subsequent to the end face area of concrete. In this area, therefore, a concrete ring forms an additional reinforcement of the plastic inner tube, which counteracts in particular a shearing of the plastic inner tube by lateral impacts in the region of the end face of the channel system unit.

On the inside of the pipe of the plastic pipes, a circumferential groove for receiving an elastomeric sealing ring can be arranged in the socket area.

Particularly advantageously, the plastic inner tubes have a so far not sheathed with concrete and inserted into the pipe socket end pieces supernatant that the circumferential groove is covered in each case.

Furthermore, the concrete casing of the supernatant of the plastic inner tubes may have a sleeve-like casing, so that the outside of this reinforcing concrete casing is again covered with plastic.

To improve the tightness, a second circumferential groove for receiving an elastomeric sealing ring can advantageously also be excluded in the tubular sleeve end part in the region of the insertable sleeve-like sheathed concrete jacket of the protrusion of the plastic inner tube.

Further details, features and advantages of the invention will be explained in more detail with reference to an embodiment shown in the drawing. Show it:

1 FIG. 2 is a side view of two interconnected channel system units according to all embodiments of the present invention. FIG.

2 : a cut through 1 according to the section line AA,

3 : a detail corresponding to the detail B according to 2 , and

4 : a detail according to the area C off 3 ,

The 1 shows two channel system units 10 and 10 ' that are interconnected. The channel system unit 10 each consists of a concrete body 12 in the embodiment shown here has the shape of an elongated cuboid and two in the concrete body 12 cast-in plastic inner tubes 14 and 16 , The plastic inner tubes 14 and 16 (for example made of PVC), form a corrosion-resistant, liquid-tight inner lining of the concrete body 12 , As in particular from the sectional view of 2 becomes clear, are the diameters of the plastic pipes 14 and 16 chosen differently, wherein the diameter of the circular cross-section here plastic pipes is selected depending on their application. As based on the 1 and 2 becomes clear, have the plastic pipes at one end a pipe tip end part 18 and at the other end a pipe sleeve end part 20 on, taking over the end parts 18 and 20 the channel system units can be connected to one another to form a complete channel system, that is, to a plurality of parallel pipelines. For this purpose, the end wall of the channel system unit 10 at the pipe tip end parts 18 protrude into the pipe socket end portions of the other channel system unit 10 ' plugged in. As adjustment and insertion help in this case the supernatants 18 the plastic pipes 14 and 16 which are inserted into the pipe socket end portions of the adjacent channel system unit.

From the 3 and 4 is in each case the structure of the plastic system units in the region of the pipe tip end parts 18 and pipe socket end parts 20 shown in detail. Thus, the pipe socket end part has a plastic sleeve lining 22 on. This may advantageously be PVC, but also any other plastic similar properties. Furthermore, in the socket area 20 a groove 24 and in this a sealing ring 26 disposed at the pipe tip end portion 18 the inserted tube sealingly rests (see the 3 and 4 ). In the pipe socket is another groove 28 provided in the area of the sleeve lining, in turn, a seal 30 is arranged.

The pipe tip end part 18 stands over the front wall 32 the concrete body 12 out. Im directly to the front wall 32 adjacent area is the respective plastic pipe of a projecting beyond the end wall concrete ring 34 surround. As a result, in particular the stability when mating with the sleeve of the channel system unit to be connected 10 elevated. How the particular 4 it can be seen, is this concrete paragraph 34 also with a plastic cuff 36 surround. Thus, if the pipe tip end portion is inserted into the corresponding pipe socket end portions of the adjacent channel system unit, the gasket will settle 28 to the concrete paragraph 34 surrounding plastic sleeve 36 and seals here accordingly.

The channel system unit according to the invention thus provides an easy-to-install multi-channel system, which enables a simple and dense laying of parallel pipelines.

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 8132729 U [0003]
• DE 8806158 U [0004]
• DE 202004003139 U1 [0005]

Claims (10)

Channel system unit consisting of a concrete body in which at least two plastic inner tubes are cast. Duct system unit according to claim 1, characterized in that the concrete body has a polygonal, preferably rectangular, cross-section. Channel system unit according to claim 1, characterized in that the concrete body has a circular or elliptical cross-section. Duct system unit according to one of the preceding claims, characterized in that the plastic inner tubes have different diameters. Duct system unit according to one of the preceding claims, characterized in that at its one end over the end wall projecting Rohrspitz end parts and at its other end pipe socket end portions for receiving the Rohrspitz end portions of the following channel system unit are formed, wherein on the end wall with the Rohrspitz end portions the plastic inner tubes survive by a supernatant. Channel system unit according to claim 5, characterized in that the plastic inner tubes are surrounded in the region of their projecting beyond the end face supernatant in a subsequent to the end face area of concrete. Duct system unit according to one of the preceding claims, characterized in that on the inside of the pipe of the plastic pipes in the sleeve region in each case a circumferential groove for receiving an elastomeric sealing ring is arranged. Duct system unit according to claim 7, characterized in that the plastic inner tubes have such a long non-sheathed with concrete and insertable into the pipe socket end pieces supernatant, that the circumferential groove is covered in each case. Duct system unit according to one of claims 6-8, characterized in that the concrete casing of the supernatant of the plastic inner tubes has a sleeve-like casing. Duct system unit according to claim 9, characterized in that in the pipe socket end part in the region of the insertable sleeve-like clad concrete casing of the supernatant of the plastic inner tube, a second circumferential groove for receiving an elastomeric sealing ring is excluded.

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