DE202005003449U1 - building entry - Google Patents

Abstract

Building entry for a cable, in particular for a Fiber optic cable, with the building entry a Compression unit having a protective tube, a wall plate and an outer pressing ring, the outer one Press ring outwards against an opening in a building wall is compressible and can be pressed inwards against the protective tube is, characterized in that in the protective tube an inner compression ring is arranged, which can be pressed outwards against the protective tube and inwardly compressible against the cable.

Description

technical area

The The invention relates to a building entry for a cable for fixing a cable in an opening of a building wall according to The preamble of claim 1. The invention further relates to a press unit for cables or pipes according to The preamble of claim 8.

State of technology

A generic house lead is for example from CH-A-6'92'793 and a generic pressing unit is known from CH-A-691'878. These are usually used in core drilling.

presentation the invention

It An object of the invention is a house entry for a cable, in particular for a fiber optic cable, in an opening a building wall to create, which allows a trenchless installation.

These Task solves a device with the features of claim 1.

It Another object of the invention is a press unit for cables or to create pipes, which are the introduction of pipes or cables facilitated in the press unit and built extremely flexible is.

These Task solves a press unit with the features of claim 8.

Advantageous On this press unit is also that they can be produced relatively inexpensively is because the parts of the press unit are designed the same.

Further advantageous embodiments go out of the dependent claims out.

Short description the drawings

in the The following are the subject invention based on preferred Embodiments, which are illustrated in the accompanying drawings explained. It demonstrate:

1 a longitudinal section through a building entry for a cable;

2a a view of a press unit for cables or pipes with inserted inserts in a first embodiment;

2 B a longitudinal section through the press unit according to 2a .

3a a view of a press unit for cables or pipes in their use without insert elements in a second embodiment;

3b a longitudinal section through the press unit according to 3a .

4a a view of a press unit for cables or pipes in a third embodiment and

4b a longitudinal section through the press unit according to 4a ,

Ways to execute the invention

1 shows an inventive building or house entry, which preferably in a core hole 8th a building wall W is used.

she serves trenchless cables, especially fiber optic cables, in the building wall W to fix and seal.

In trenchless installation, an opening, in particular a core hole, is first drilled into the building wall to the outside from the inside of the building. Subsequently, a straightening system of known type is positioned in front of the core bore or opening on the inside of the building. This straightening system presses a press rocket through the opening into the ground to a target point. When retracting the rocket is a arranged at the target point protective tube 2 grabbed and pulled this back through the opening. The protective tube 2 It may well be a few meters from the building. The cable K can either together with the protective tube 2 be drawn in or subsequently fed or blown into the building by means of the gripper arm.

This In particular, the procedure will be glad for subsequent introductions used by cables, since no excavations near the building necessary are. A disadvantage of this method, however, is that the opening is relative must be large, so that the straightening system can be used. For the pulled cable would however, a much smaller diameter is sufficient. This allows house entries barely used.

The inventive device according to 1 as well as the method according to the invention are suitable for such an introduction. After completion of core drilling and pressing by means of the straightener press system becomes the protective tube 2 first pulled back into the house. The protective tube 2 is doing in an outer press ring 3 introduced. It is also possible to use the outer press ring 3 in a separate step over the protective tube 2 to evert. Preferably, however, a press unit consisting of wall plate 1 , outer and inner pressure ring 3 . 4 and outer and inner tension plate 7 . 8th together on the protective tube 2 be pushed.

The outer pressing ring 3 becomes by means of external tensioning means 5 For example, screws, between the wall plate 1 and an outer tension plate 7 spans. Because the outer press ring 3 against the core bore B and the protective tube 2 clamped, it serves to fix the entire unit and retracted from the outside, not connected to the wall plate thermowell 2 ,

The inner press ring 4 is still unstressed. The cable K can thus be moved. When the cable K is laid, the inner pressing ring becomes by means of the inner tensioning means 8th (usually screws) braced. This inner press ring 4 Tense up against the protective tube 2 and the cable K.

Preferably, before the introduction of the pressing unit, a sealing plug 9 with a membrane seal pushed into the opening. Preferably, it is pushed into the building so far into it, until it is flush with the outer edge of the core hole. The stopper 9 prevents ingress of stagnant water into the core bore and the membrane prevents water from entering the protective tube.

The protective tube may be made of a metal or a plastic, for example. The inner and outer press ring 3 . 4 are made of a compressible material, in particular a plastic or rubber. The wall disk 1 and the inner and outer bracing plates are preferably made of metal or plastic. The sealing plug 9 preferably consists of a compressible material, in particular a plastic or rubber.

Variants of this embodiment are possible. Thus, the wall plate may be discontinued, so that the pressing part, ie the pressing rings 4 . 5 to get deeper into the core hole. It is also possible, the pressing rings with one or two necks 40 to provide.

In the 2 to 4 is a press unit shown, which serves for the introduction of cables and or pipes. It consists of a multi-part body 10 and two at two opposite end faces of the main body 10 arranged bracing plates 16 . 17 , At least one of the bracing plates, here the so-called over- or perforated flange 17 , is formed in several parts. Preferably, both plates, ie also the tension plate 16 , also called threaded flange, formed in several parts. Preferably have threaded flange 16 and hole flange 17 the same sub-plates and are the same except for the design of their holes.

There are thus both for the main body as well as for the two bracing plates edge parts and middle parts available. The base body and the bracing plates have lead-through openings 20 on, through which the cables or pipes can be carried out and pressed into these. The compression takes place by means of bracing, in particular screws, which the body 1 , which corresponds to a press ring, between the two plates 16 . 17 , pressed. The holes 15 for the tensioning means are visible in the figures.

At least a part of, preferably all passage openings 20 are divided and are by adjacent partial openings 13 . 14 in the individual parts of the body or the bracing plates 16 . 17 formed when these parts are arranged next to each other. Inserts, as disclosed, for example, in CH-A-691,878, can also be inserted into the passage openings. This is for example in the 2a and 2 B shown. The insert grommets are with the reference number 18 designated. Furthermore, unused holes can also be filled with blind plugs 19 be closed, as for example in the 2a to 4b is shown in individual holes.

These Press unit leaves can be combined as required, by different edge parts or middle parts are combined with each other. Also can be choose the number of middle parts as you like. The advantage here is that with a relatively small number of different forms of Sharing a variety of combination options are available. Since these parts thus in large enough Produce quantities, the production costs are minimized.

One Another advantage is that the pipes and cables, especially pipes and cables with cast diameters, not through the openings have to be pushed through, but that the parts of the press unit around these pipes or cables and still the entire unit are pressed together can.

1

shear wall

2

thermowell

3

Outer press ring

4

inner press ring

40

neck

5

External tension plate

6

Inner clamping plate

7

External tensioning agents

8th

Inner bracing means

9

sealing plug

10

body

11

edge part of the basic body

12

midsection of the basic body

13

partial openings for pipes

14

partial openings for cables

15

Holes for tensioning agent

16

First clamping plate

17

Second clamping plate

18

insert element

19

blind plug

20

Through openings

W

building wall

B

core drilling

Claims (13)

Building entry for a cable, especially for a fiber optic cable, wherein the building entry a compression unit comprising a protective tube, a wall plate and an outer pressure ring, the outer one Press ring outwards against an opening in a building wall is compressible and can be pressed inwards against the protective tube is, characterized in that in the protective tube an inner compression ring is arranged, which can be pressed against the outside of the protective tube and inwardly compressible against the cable. Building introduction to Claim 1, wherein the protective tube is unconnected to the wall plate. Building introduction to one of the claims 1 or 2, wherein on the opposite side of the wall plate of the inner Press ring is disposed an inner bracing plate and wherein at least a tensioning means is provided which the wall disc and the inner tension plate passes through and by means of which inner press ring is compressible. Building introduction to one of the claims 1 to 3, wherein on the wall disc opposite side of the outer Press ring an outer Bracing plate is arranged and wherein at least one tensioning means is present, which passes through the wall plate and the outer bracing plate and by means of which the outer Press ring is compressible. Building introduction to Claim 3, wherein the inner pressure ring at least on one end face a Neck having which the wall plate or the inner bracing plate interspersed. Building introduction to Claim 5, wherein the inner pressure ring on both opposite end faces each has a neck. Building introduction to one of the claims 1 to 6, wherein a sealing plug is present, which is spaced to the outside Press ring tightly against the protective tube. Press unit for sealingly receiving cables and / or Tubes, wherein the pressing unit with a compressible body with Through openings to carry out the cable and / or pipes and arranged on two opposite end faces of the base body Compression plates, wherein at least one of the compression plates is formed in several parts, characterized in that the basic body in several parts is formed, with parts of the base arranged side by side are. A press unit according to claim 8, wherein each of the adjacent arranged parts of the body at least one part is assigned to the multi-part compression plate and is connectable with this. Press unit according to one of claims 8 or 9, wherein both compression plates are formed in several pieces and each the juxtaposed parts of the body at least one part each associated with the two multi-part compression plates is and is connectable with this. Press unit according to one of claims 9 or 10, wherein each of the juxtaposed parts of the body exactly a part of the multipart compression plate or compression plates assigned. Press unit according to one of claims 8 to 11, wherein at least a part of the passage openings through partial openings be formed in two adjacent parts of the body. Press unit according to one of claims 8 to 12, where it has a non-circular cross section, in particular a rectangular Cross section, has.