SK70193A3 - Band for searching for non-metallic pipes or similar buried matters - Google Patents

Abstract

A band for detecting non-metallic underground conduits or the like, which band can be laid in the ground together with and above the non-metallic conduit and consists of a plastic tape having a relatively large tearing strength (tear resistance) and on one side of which a narrower metal tape, in particular a steel tape, is fastened, particularly by gluing, for the purpose of location in the case of inductive and also of galvanic coupling. In order to produce long bands, it is possible to arrange a plurality of bands sections one after another and to connect them conductively to one another using the ends of the metal bands. The ends of the metal bands (12) connected to one another conductively are detached from the associated plastic bands (11) and laid together overlapping one another and are pressed together using a metal sleeve (13) pushed onto the overlap region.

Description

Technique area

BACKGROUND OF THE INVENTION The invention relates to a strip for locating non-metallic pipes or the like in the ground adapted to be placed together with a non-metallic pipe in the ground above the pipe and consisting of a plastic strip of relatively high tear strength. a strip, in particular a steel strip, for determining the location of both the inductive and the galvanic couplings, wherein a plurality of strip sections are arranged one after the other and conductively connected to the ends of the metal strip to form long strips.

BACKGROUND OF THE INVENTION

In these known strips, riveted metal pins are used for the conductive connection of the metal strips to each other, which are inserted into the mutually overlapping ends of the metal strips. To this end, openings must be provided in advance at the ends of the metal strips to be joined for the subsequent insertion of the male screws. This is complicated and time consuming, and the conductive connection between the two ends of the metal strips connected together is insufficient because the ends of the metal strips to be joined are only conductively adjacent to each other by small areas.

It is an object of the present invention to improve the electrically conductive connection between two interconnected belts of the type described above, wherein the electrically conductive connection of the ends of the metal belts could be made simply and inexpensively.

SUMMARY OF THE INVENTION

The invention solves the problem by providing a strip for locating non-metallic pipes or similar objects stored in the ground

2 adapted to be placed together with a non-metallic pipeline in the ground above the pipeline and consisting of a plastic strip having a relatively high tear strength, on one side of which a narrower metal strip, in particular a steel strip, is fixed in particular by gluing. for determining the location of both the inductive and the galvanic couplings, in order to form long strips, a plurality of strip sections are arranged one after the other and conductively connected to one another with the ends of the metal strips. The plastic is loosened and folded overlapping and compressed together with the metal sleeve fitted to the overlap area.

According to a preferred embodiment of the present invention, the mutually extending ends of the metal strips are compressed in the overlap region together with the inserted metal sleeve. By this measure, it is easy to achieve that over the entire area of the overlap of the interconnected ends of the metal strips, these ends are reliably pressed against each other in order to achieve good conductivity. In order to achieve a wavy compression, the pressing jaws of the pliers need only be provided with waves in order to obtain a wave shape in the compression region. Both the pressed housing and the inner ends of the metal strips lying therein acquire a wave form. At the same time, this wave form makes it difficult to remove the ends of the metal strips from the compressed housing.

According to another preferred embodiment of the present invention, the inserted and compressed metal sleeve covers the entire length of the overlap region of the interconnected ends of the metal strips. By this measure it is achieved that the free ends of the interconnected metal strips do not protrude from the metal sleeve. The loose ends of the metal strips have sharp edges and could cause injury.

For the branch pipe, a location spot may be located above the branch pipe in the ground. This measure can be not only a straight-running main pipe, but also a tap-off pipe from the main pipe, so that these tap pipes will also be retrieved.

According to a further preferred embodiment of the present invention, the branch pipe may be positioned above the branch pipes in the ground and be conductively connected to the strip to determine the location of the main pipe, wherein the end of the metal strip released from the respective plastic strip is slid fully rearwardly to determine the location of the respective piping and the two arms are compressed together with the inserted metal sleeve. By this measure, the location line assigned to the branch pipe can also be connected in a simple manner to the location line of the main pipe, so that both the main pipe band and the branch pipe can be locally determined. The strip assigned to the branch pipe is simply and reliably connected to the main pipe strip in a simple and reliable manner.

According to a further preferred embodiment of the present invention, the two arms of the bend are also compressed to one another with the intermediate region of the metal strip of the strip to determine the location assigned to the main pipe.

BRIEF DESCRIPTION OF THE DRAWINGS

Two exemplary embodiments of the invention are shown in the drawings.

shows the two joined ends of the strips in plan view, FIG.

shows a section by line

II-II of FIG. 1, FIG. 3 shows a section along the line of FIG. 1 shows a plan view of a strip associated with a main pipe with a strip associated with a branch pipe; FIG. 5 shows a section along line V-V in FIG. 4, and FIG. 6 shows a section along a line

VI-VI of FIG. 4 Examples of embodiments of the invention

F’ás 10 shown in the drawings is used to locate non-metallic pipes or similar items that are stored in the ground. The strip 10 is arranged in the ground above the pipe together with the non-metallic pipe.

The belt 10 consists of a plastic belt 11 having a relatively high tear strength and, on the one hand, a narrower metal belt 12, in particular a steel belt, is attached above all by gluing. to determine the city for both inductive and galvanic coupling. To form the long strips 10, a plurality of belt sections are arranged one after the other, the ends of the metal strips 12 being conductively connected to each other.

For the conductive connection of the ends of the metal strips 12 of the two strips 10, they are first artificially applied from the ends of the metal strips 12 to the respective strips of mass. Then, the ends of the two metal strips 12 are overlapped and pressed together with the metal sleeve 13 slid onto the overlap region.

as is evident in particular

2. The mutually extending ends of the metal strips 12 together with the metal sleeve pushed in are compressed in a wave-like manner.

By this corrugation of the metal sleeve 13 together with the overlapping ends of the metal bands, the conductive connection of the metal bands 12 is achieved particularly well because the bands 12 extending over the metal bands 12 over the entire area covered by the metal sleeve 13 are pressed together. area.

The compression of the metal sleeve together with the overlap region of the interconnected ends of the metal strips 12 housed in the metal sleeve 13 is accomplished by means of tongs, not shown, whose jaws have a wave form.

The inserted and compressed metal sleeve 13 comprises, as is evident in particular from FIG. 2, the entire length of the overlap region of the interconnected ends of the metal strips 12. This prevents the ends of the metal strips 12 from protruding from the metal sleeve 13. The ends of the metal strips 12 have sharp edges and could cause injury.

As can be seen in particular from FIG. 4, for a branch pipe (not shown), a location-determining strip 10 may also be placed in the ground above the branch pipe. The metal strip 12 of the tap-pipe city 10 is conductively connected to the metal strip 12 of the main pipe city 10.

As shown in FIG. 4-6. The end of the metal strip 12 of the strip 10 associated with the branch line is released from the plastic strip 11 and is fully bent over the metal strip 12 of the strip 10 to determine the location assigned to the main line. The two arms of the bend are corrugated together with the sliding metal sleeve 1/3. This provides a particularly reliable fastening of the metal strip 12 of the strip 10 associated with the main pipe. In order to achieve a particularly good conductive connection of the metal strips 12 of the two strips 10, both arms 14.15 are provided. bending is also compressed in a wave-like manner with the region of the metal strip 12 of the strip 10 lying between them to determine the location associated with the main pipe.

As mentioned, embodiments of the invention are shown by way of example only, and the invention is not limited thereto. Many other embodiments with variations are possible.

Claims (5)

PATENT CLAIMS 1. A strip for locating non-metallic pipelines or similar objects stored in the ground adapted to be placed together with non-metallic pipelines in the ground above the pipeline and consisting of a plastic strip of relatively high tear strength, on one side of which a narrower metal strip is fixed in particular; in particular a steel strip, for determining the location of both the inductive and the galvanic couplings, wherein a plurality of strip sections are arranged one after the other and conductively connected to the ends of the metal strips to form long strips, characterized in that the ends of the metal strips are disengaged and folded from the respective plastic strips (11) and folded together and pressed together with the metal sleeve (13) fitted to the overlap region. Belt according to claim 1, characterized in that the mutually overlapping ends of the metal strips (12) are compressed in the overlap region together with the inserted metal sleeve (13). Belt according to claim 1, characterized in that the inserted and compressed metal casing (13) covers the entire length of the overlap region of the interconnected ends of the metal strips (12). 4. A branch pipe suitable for laying above branch pipes in the ground and for conductive connection to the main pipe site, according to any one of items 1 to 3, characterized in that the end of the metal strip (12) is free from of the respective plastic strip (11) is slid by a fully bent section (14) onto the metal strip (12) of the strip (10) to determine the location assigned to the main pipe, and the two arms (14,15) are together with the slotted metal sleeve (13) wavy compressed. Strip according to claim 4, characterized in that the two bending arms (14, 15) are also compressed in a wave-like manner with the intermediate region of the metal strip (12) of the strip (10) to determine the location assigned to the main pipe.