Plastics pipeline with a support sleeve

Abstract

The invention relates to a plastics pipeline comprising at least one pipeline end (1) and at least one support ring (2). It was the underlying object of the invention to improve a plastics pipeline of the type described at the outset in such a way that the support sleeve or the support ring (2) remains firmly connected to the pipeline even in the event of the plastics pipeline being stored in the presence of high air humidity and temperature. This object is achieved by virtue of the fact that the blow molded pipe section (1) runs through the support ring (2) and, as viewed radially, is pressed from the inside outward against the support ring (2), wherein the pipe section (1) engages around the support ring (2), such that the support ring (2), with its outer surface, and the pipe section (1), with its outer surface, are substantially in alignment.

Claims

1. A plastics pipeline comprising at least one pipeline end and at least one support ring, wherein each of the at least one pipeline end comprises a blow molded pipe section which runs through the at least one support ring, wherein the blow molded pipe section engages around the at least one support ring, such that the at least one support ring, with its outer surface, and the blow molded pipe section, with its outer surface, are in alignment; an elastomer hose is disposed upon the at least one pipeline end and the at least one support ring; the elastomer hose is clamped upon the at least one pipeline end with a clamping ring; and the at least one pipeline end comprises opposing chamfers which extend partially around the at least one support ring, and wherein the elastomer hose is clamped upon the at least one pipeline end and over at least one chamfer.

2. The plastics pipeline as claimed in claim 1, wherein the at least one support ring comprises chamfers, which, as viewed radially, are arranged on the outside and, as viewed axially, are arranged on both sides on the at least one support ring.

3. The plastics pipeline as claimed in claim 1, wherein the plastics pipeline is leaktight.

4. The plastics pipeline as claimed in claim 1, wherein the at least one support ring is disposed around a parison for forming the at least one pipeline end.

5. The plastics pipeline as claimed in claim 4, wherein the at least one support ring has a defined position upon the at least one pipeline end.

6. The plastics pipeline as claimed in claim 1, wherein the at least one pipeline end comprises an annular recess, and wherein the at least one support ring is situated in the annular recess in an immovable positive engagement in an axial direction.

7. The plastics pipeline as claimed in claim 1, wherein the elastomer hose is compressed upon the at least one pipeline end and the at least one support ring, and wherein the elastomer hose is undamaged.

8. The plastics pipeline as claimed in claim 1, wherein the at least one pipeline end comprises opposing undercuts which extend partially around the at least one support ring, and wherein the elastomer hose is clamped upon the at least one pipeline end and over at least one undercut.

9. The plastics pipeline as claimed in claim 8, wherein the elastomer hose is clamped upon the at least one pipeline end in a leaktight manner.

10. The plastics pipeline as claimed in claim 1, wherein the elastomer hose is clamped upon the at least one pipeline end in a leaktight manner.

11. The plastics pipeline as claimed in claim 1, wherein the at least one pipeline end comprises opposing undercuts which extend partially around the at least one support ring.

12. A plastics pipeline comprising: at least one pipeline end and at least one support ring, each of the at least one pipeline end comprises a blow molded pipe section which runs through the at least one support ring, the blow molded pipe section engages around the at least one support ring, such that the at least one support ring, with its outer surface, and the blow molded pipe section, with its outer surface, are in alignment; an elastomer hose is disposed upon the at least one pipeline end and the at least one support ring; and the at least one pipeline end comprises opposing chamfers which extend partially around the at least one support ring, and wherein the elastomer hose is clamped upon the at least one pipeline end and over at least one chamfer.

13. The plastics pipeline as claimed in claim 12, wherein the at least one support ring comprises chamfers, which, as viewed radially, are arranged on the outside and, as viewed axially, are arranged on both sides on the at least one support ring.

14. The plastics pipeline as claimed in claim 12, wherein the plastics pipeline is leaktight.

15. The plastics pipeline as claimed in claim 12, wherein the at least one support ring is disposed around a parison for forming the at least one pipeline end.

Description

(1) An example of the invention is explained in more detail below on the basis of the drawing. In the drawing:

(2) FIG. 1 shows a pipeline according to the invention with a support ring, and

(3) FIG. 2 shows the pipeline according to the invention with a support ring that has a chamfer.

(4) FIG. 1 shows part of a plastics pipeline according to the invention with a pipeline end 1. A support ring 2 is arranged on the pipeline end 1. An elastomer hose 3, of which only a partial section is shown here, is pushed onto the pipeline end 1 with the support ring 2. The pipeline end 1 is designed as a plastics blow molding, wherein the pipeline end 1 runs through the support ring 2 and is molded around the support ring 2 by means of the blow molding process in such a way that two undercuts 4A and 4B are formed, which extend partially around the support ring 2.

(5) Even if the pipeline end 1 was stored in the presence of a relatively high air humidity and high temperature, reliable and firm seating of the support ring 2 on the pipeline end 1 is ensured despite the associated expansion and subsequent shrinkage of the pipeline end 1.

(6) The elastomer hose 3 is clamped firmly on the pipeline end 1 by means of a clamping ring 5. In this arrangement, at least one undercut region, in this case 4A, can be clamped firmly between the clamping ring 2 and the elastomer hose 3, and therefore a high level of security for the leaktightness of the connection between the elastomer hose 3 and the pipeline end 1 is provided.

(7) FIG. 2 shows essentially the same arrangement as FIG. 1. Here, the support ring 2 additionally has 2 chamfers 2A and 2B, which are arranged radially on the outside and axially on both sides of the support ring 2.

(8) The chamfers 2A and 2B facilitate the molding of the undercuts 4A and 4B during the blow molding of the pipeline end 1, thus ensuring even better anchoring of the support ring 2 on the pipeline end 1.

LIST OF REFERENCE SIGNS

Part of the Description

(9) 1 Pipeline end 2 Support ring 2A, 2B Chamfers of the support ring 2 3 Elastomer hose 4A, 4B Undercuts 5 Clamping ring