DE202020107240U1 - sealing system - Google Patents

Abstract

Sealing system (100) for sealing a cable duct end (215) of a cable duct (210) in which a telecommunications cable (220) is accommodated, the telecommunications cable (220) being passed through the sealing system (100) to the outside, comprising two attachment parts (110, 110) which are of the same shape and which are abuttable, thus forming a passage (105) for receiving the telecommunications cable (220), the abuttable abutments (110, 110) fitting into the end (215) of the conduit ( 210) can be inserted and pressed together.

Description

The present invention relates to a sealing system.

Furthermore, the invention relates to a telecommunications system with such a sealing system.

Such a sealing system is used to seal cables, pipes and pipes with cables, in particular house connections. Particularly in the case of so-called micro cable ducts, the sealing systems to be used are subject to considerable requirements with regard to water and/or gas tightness and tensile strength.

Known sealing systems, which are also referred to as single-pass seals, have a sealing element for enclosing a cable or cable duct and comprise a multi-part housing which at least partially surrounds the sealing element and has an internal cross-section transverse to the cable or cable duct, which is smaller than the cross-section of the sealing element transverse to the cable or conduit with the housing held together by a connector.

In order to achieve the required properties, two halves of the housing, for example, can be designed such that they can pivot in relation to one another, which halves are closed and locked with a connecting element.

The two halves of the housing can be pivoted by an axis which is guided in bearing eyes provided for this purpose on the housing.

Other designs use housing sections that are suitably butted together and then locked.

These solutions are complex in terms of execution, the need for components and assembly, and are therefore also expensive.

In addition, due to the design, such solutions build heavily on the pipe circumference of the cable duct, so that they can no longer be installed in confined spaces.

This is where the invention comes in, the object of which is to provide a sealing system with which the disadvantages mentioned above can be overcome and which has a simple structure and can be installed quickly and safely.

Another object of the present invention is to provide a telecommunications system.

The first task is solved for a sealing system with technically simple means by means of the subject matter of claim 1.

It was recognized within the scope of the present invention that a sealing system for sealing a cable duct end of a cable duct in which a telecommunications cable is accommodated, with the telecommunications cable being passed through the sealing system to the outside, solves the task at hand if the sealing system has two system parts that are of the same shape and which can be brought into contact and in this way form a passage for receiving the telecommunications cable, the contactable parts being able to be inserted into the end of the cable duct and pressed against one another.

The disadvantages of the prior art described above are overcome by the features of the sealing system according to the invention listed above.

The advantage of the present invention is that, due to the design measures described above, only a very small number of components is required on the one hand, and on the other hand that this also enables quick and safe installation. In particular, only one component has to be produced, the system part, two of which are required to assemble the sealing system.

By omitting the axis, which allows the pivoting of the two halves of the housing in the above-described single-pass seal from the prior art, which is guided in bearing eyes provided on the housing, and the operation of inserting the axis into the bearing eyes, technical and manufacturing costs are reduced benefits generated.

Furthermore, there are advantages with simpler handling of the two parts of the system during installation on a cable duct, because the two parts of the system can be brought into contact in a simple manner, which greatly facilitates the work of the installing personnel.

In this way, a quick, safe, error-free and inexpensive installation of such a sealing system according to the invention can be carried out on a cable duct end.

It is also important here that, due to the design, it is not possible to assemble the sealing system from the two parts of the system incorrectly, which further facilitates error-free installation.

Another major advantage is that the system parts are installed between the inner wall of the cable duct and the telecommunications cable. Common single-pass seals engage the outer surface of the cable lug.

With the present invention, the outer diameter of the sealing system can be reduced to the cable duct diameter and less. Since there is little or no protrusion beyond the cable duct radially, the new sealing system can be installed in any installation situation.

In a particularly advantageous embodiment of the present invention, it can be provided that the sealing system is designed in such a way that a first end and a second end are formed on the contact part, with a contact section extending between these at least in sections, which at least in sections has a conically reducing cross-section towards the second end.

This measure makes it easily possible to insert the two plant parts that have been brought into contact with one another into the end of the cable duct, as a result of which the plant parts that have been brought into contact are pressed against one another.

A particularly favorable further development of the present invention can consist in the sealing system being provided for the inner surface on the contact part to have at least sections of an elastomeric sealant and/or the outer surface to have at least sections of an elastomeric sealant.

It is hereby possible that the bearing parts in the end of the cable duct in which they are accommodated and encase the telecommunications cable are protected against displacement, since there is high friction between the inner surface of the cable duct at its end and the outer surface of the bearing part with the elastomeric sealant occurs.

This also makes it possible that the friction between the outer surface of the telecommunications cable and the inner surface of the system parts with the elastomeric sealant ensures that the telecommunications cable is held securely between the system parts.

In a further development of the present invention, it can advantageously be provided that the sealing system is designed in such a way that a collar is formed at the first end of the contact part, which has a first contact surface with a centering projection protruding from the first contact surface and a second contact surface with an in the second bearing surface has a countersunk centering depression.

This measure enables two parts of the system to be joined together easily and precisely, since the special design of centering projections and centering depressions on the two parts of the system make it possible for them to be easily joined together, in which the centering projections taper conically towards their outer end, and thus can easily penetrate into the centering, but are also firmly connected in the assembled state, which is achieved by a suitable fit of the centering projections in the centering.

With particular advantage, the present invention can provide for the sealing system to be designed in such a way that the contact part consists of or contains a polymer material, the polymer material being a thermoplastic, preferably a polypropylene or a fiber-reinforced polypropylene, or a polyamide, or a crosslinked one polyethylene.

A glass-fiber-reinforced thermoplastic is preferred here, since it is particularly tough.

Thermoplastics from the group of polyethers, polycarbonates and polyesters can also be used to produce the sealing system.

This measure makes it possible to provide a particularly stable, durable sealing system that ensures its sealing function for a long time.

In the case of the present invention, it can be very advantageous if the sealing system is designed in such a way that the contact part is produced by a molding process, in particular by an injection molding process and/or by an additive manufacturing process, such as a 3D printing process.

Due to the production in an injection molding process, the system part can be provided in large quantities, reproducibly and with dimensional accuracy, which means that the costs for it can be reduced.

Manufacturing in a generative manufacturing process, such as a 3D printing process, can significantly reduce manufacturing costs, especially for small quantities, and technical changes can also be made immediately in this way.

In particular, provision can be made for the system part to be produced entirely or partially using an additive manufacturing process, for example a 3D printing process.

For this purpose, a three-dimensional model that can be read by a data processing machine can advantageously be used for the production.

The invention also includes a method for generating a data processing machine-readable three-dimensional model for use in a manufacturing method for a plant part. In this case, the method also includes in particular the input of data representing a plant part into a data processing machine and the use of the data to represent a plant part as a three-dimensional model, the three-dimensional model being suitable for use in the production of a plant part. Also included in the method is a technique in which the input data of one or more 3D scanners, which function either in touch or in a non-contact manner, in the latter energy is delivered to a plant part and the reflected energy is received, and where a virtual three-dimensional Model of a plant part is generated using computer-aided design software.

The manufacturing process can be a generative powder bed process, in particular selective laser melting (SLM), selective laser sintering (SLS), selective heat sintering (Selective Heat Sintering - SHS), selective electron beam melting (Electron Beam Melting - EBM / Electron Beam Additive Manufacturing - EBAM) or solidification of powder material by means of a binder (binder jetting). The manufacturing process can be a generative free space process, in particular build-up welding, wax deposition modeling (WDM), contour crafting, metal-powder application processes (MPA), plastic-powder application processes, cold gas spraying, electron beam melting (electron beam welding - EBW) or melt layering processes such as fused deposition Modeling (FDM) or Fused Filament Fabrication (FFF). The manufacturing process can include a generative liquid material process, in particular stereolithography (SLA), digital light processing (DLP), multi-jet modeling (MJM), polyjet modeling or liquid composite molding (LCM). Furthermore, the manufacturing method can include other generative layer construction methods, in particular Laminated Object Modeling (LOM), 3D screen printing or light-controlled electrophoretic deposition.

In another very favorable embodiment of the invention, the two parts of the system can be connected by means of a film hinge in order to be able to produce and install them even more easily.

For this purpose, the two parts of the system are connected with the help of the film hinge in such a way that the two parts of the system can be joined together by pivoting along the film hinge in the arrangement described above and below.

The second object of the present invention, the specification of a telecommunications system, is solved by the subject matter of claim 7.

It was recognized within the scope of the present invention that a telecommunications system, which comprises at least one cable duct in which a telecommunications cable is accommodated, and a sealing system which seals the cable duct end and leads the telecommunications cable to the outside, and as described above, itself above the state of the art and can make positive use of the advantages described above.

The sealing system according to the invention is installed as follows: It has proven useful to place the two parts of the system around the telecommunications cable protruding from the cable duct, with the second ends of the parts of the system being aligned in the direction of the cable duct.

Thereafter, the equipment that is assembled together is then slid along the telecommunications cable to and into the end of the conduit. Due to the conical shape, the two system parts are clamped in the end of the cable duct, whereby the telecommunications cable is not squeezed, but only enclosed so tightly that a seal is achieved.

The two mated system parts are then firmly received in the end of the duct, sealing the end of the duct against undesired ingress or egress of media and allowing the telecommunications cable received in the duct to pass to the outside.

To release the sealing system, i.e. to slide out the two jointed ten system parts from the end of the cable duct, it can be provided, for example, that the collar of the system part protrudes radially beyond the outer surface of the end of the cable duct, so that it is easy to remove the two assembled system parts from the end of the cable duct with a tool.

In another embodiment of the present invention, it can be provided that a depression or recess is provided on the collar of the contact part, facing the cable duct, into which a tool, for example a screwdriver, can be inserted in order to separate the contact parts from the cable duct loosen to pull them out.

Analogously, a depression or a recess can also be formed at the end of the cable duct, facing the collar of the attachment part, as a result of which the attachment parts can also be detached from the cable duct and then pulled out.

The advantage of the present invention is, in particular, that the design measures described above enable very cost-effective production on the one hand due to the simple system part required, and on the other hand particularly simple handling of the sealing system when installing at one end of a cable duct is possible, which The work of the installing staff is greatly facilitated.

Further important features and advantages of the invention result from the dependent claims, from the figures and from the associated description of the figures.

It goes without saying that the features mentioned above and those still to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.

A preferred embodiment of the invention is shown in the figures and is explained in more detail in the following description.

• 1 eine erste schematische perspektivische Ansicht eines Anlageteils;
• 2 eine zweite schematische perspektivische Ansicht des Anlageteils aus der 1;
• 3 eine schematische Aufsicht auf die Stirnseite des Anlageteils an dessen ersten Ende;
• 4 eine schematische Aufsicht auf die Stirnseite des Anlageteils an dessen zweiten Ende;
• 5 eine schematische perspektivische Ansicht von zwei Anlageteilen, die einander zugewandt sind;
• 6 eine schematische perspektivische Darstellung von zwei Anlageteilen, die zusammengefügt sind;
• 7 eine schematische perspektivische Stirnseitenaufsicht auf die beiden zusammengefügten Anlageteile vom zweiten Ende aus;
• 8 eine schematische Stirnseitenaufsicht das Abdichtungssystem vom zweiten Ende der beiden zusammengefügten Anlageteile aus;
• 9 eine schematische perspektivische Ansicht des Abdichtungssystems, das teilweise transparent dargestellt ist;
• 10 eine schematische perspektivische Ansicht eines Telekommunikationssystems mit einem Abdichtungssystem, das teilweise transparent dargestellt ist.

For this show:

• 1 a first schematic perspective view of a system part;
• 2 a second schematic perspective view of the system part from FIG 1 ;
• 3 a schematic plan view of the end face of the plant part at its first end;
• 4 a schematic plan view of the end face of the plant part at its second end;
• 5 a schematic perspective view of two plant parts facing each other;
• 6 a schematic perspective view of two system parts that are joined together;
• 7 a schematic perspective end view of the two assembled system parts from the second end;
• 8th a schematic end view of the sealing system from the second end of the two assembled system parts;
• 9 a schematic perspective view of the sealing system, which is shown partially transparent;
• 10 a schematic perspective view of a telecommunications system with a sealing system, which is shown partially transparent.

In the 1 a system part 110 is shown in a first schematic perspective view.

The contact part 110 is designed as a half-shell and has a first end 120 and a second end 130 .

A collar 125 is formed at the first end 120 and has a first contact surface 126 from which a centering projection 127 protrudes.

A second contact surface 128 is formed on the collar 125 at the first end 120 of the contact part 110, in which a centering recess 129 is sunk.

The first contact surface 126 and the second contact surface 128 are flat and arranged in one plane.

A contact section 140 is formed between the first end 120 and the second end 130 of the contact part 110 . The abutment section 140 is conically shaped and becomes smaller towards the second end 130 in its clear cross-section.

A sealing means 175 is provided on the outer surface 170 of the contact part 110 . The sealant 175 has elastomeric properties.

In the 2 is a second schematic perspective view of the system part 110 from FIG 1 pictured.

The reference signs in the 2 correspond to those from the 1 .

The abutment portion 140 formed between the first end 120 and the second end 130 of the abutment member 110 has an inner surface 160 on which a sealing means 165 having elastomeric properties is provided.

the 3 shows a schematic plan view of the face of the system part 110 at its first end 120.

The reference signs in the 3 correspond to those from the previous figures.

The collar 125 at the first end 120 of the contact part 110 is designed as a semicircular ring.

the 4 shows a schematic plan view of the end face of system part 110 at its second end 130.

The reference signs in the 4 correspond to those from the previous figures.

The second end 130 of the contact part 110 is designed as a semicircular ring.

In the 5 two plant parts 110 facing each other are shown in a schematic perspective view.

The reference signs in the 5 correspond to those from the previous figures. Two contact parts 110 of the same shape can be joined by placing them together, with the centering projection 127 of one contact part 110 penetrating into the centering depression 129 of the other adjacent contact part 110 and the centering projection 127 of the other neighboring contact part 110 penetrating into the centering depression 129 of one contact part 110.

The contact parts 110 are formed in such a way that the respective first contact surfaces 126 of the two contact parts 110 come into contact with the respective second contact surfaces 128 of the two contact parts 110 when they are joined together.

The centering projections 127 and the centering depressions 129 of the two system parts 110 are designed in such a way that they can be easily assembled, in which the centering projections taper conically towards their outer end, but are also firmly connected in the assembled state, which is achieved by a corresponding fit of the Centering projections 127 in the centering depressions 129 are reached.

In the 6 two system parts 110, which are joined together, are shown in a schematic perspective view.

The reference signs in the 6 correspond to those from the previous figures.

In the 6 is shown schematically that the first and second contact surfaces 126, 128 touch in this assembled state of the two parts 110 system.

In the assembled state of the two plant parts 110, a passage 105 extending from the first end 120 to the second end 130 is formed.

the 7 shows a schematic perspective end view of the two assembled system parts 110, 110 from the second end 130.

The reference signs in the 7 correspond to those from the previous figures.

The passage 105 extends through the two assembled system parts 110, 110 from the first end 120 to the second end 130.

the 8th shows the sealing system 100 from the second end 130 of the two assembled system parts 110, 110 in a schematic end view.

The reference signs in the 8th correspond to those from the previous figures.

The two assembled contact parts 110, 110 are inserted with the second end first into the inner free space of the cable duct 210 and are thus fixed by the cable duct 210 under compression pressure on the conical contact section 140 in the cable duct 210.

the 9 shows a schematic perspective view of the sealing system 100 from the first end 120 of the two assembled system parts 110, 110.

The reference signs in the 9 correspond to those from the previous figures.

The sealing system 100 is shown partially transparent, so that the two plant parts 110, 110, which are arranged in the end 215 of the cable duct 210, can be seen.

the 10 shows a schematic perspective view of a telecommunications system 200, comprising a cable duct 210 in which a telecommunications cable 220 is accommodated, and a sealing system 100 which seals the cable duct end 215 and leads the telecommunications cable 220 to the outside.

The telecommunications cable 220 is accommodated between the two system parts 110, 110 in the passage formed by them, which extends from the first ends 120 of the system parts 110 to the second end 130 of the system parts 110, not shown here.

The mated abutment parts 110, 110 are retained in the end 215 of the duct 210 frictionally between the outer surface 170 of the abutment parts 110, to which a sealant 175 is present, and the inner surface of the duct 210 and protected against displacement.

The telecommunications cable 220, which is received between the two plant parts 110, 110 in the passage formed by them, is frictionally engaged between the inner surface 160, which is provided with a sealant 165, and the outer surface of the telecommunications cable 220 retained and protected against displacement.

The reference signs in the 10 correspond to those from the previous figures. The sealing system 100 is shown partially transparent, so that the two system parts 110, 110, which are arranged in the cable duct 210, can be seen.

Reference List

100

sealing system

105

passage

110

plant part

120

first end

125

collar

126

first contact surface

127

centering projection

128

second contact surface

129

center recess

130

second end

140

investment section

160

inner surface

165

sealant

170

outer surface

175

sealant

200

telecommunications system

210

conduit

215

End

220

telecommunications cable

Claims (7)

Sealing system (100) for sealing a cable duct end (215) of a cable duct (210) in which a telecommunications cable (220) is accommodated, the telecommunications cable (220) being passed through the sealing system (100) to the outside, comprising two attachment parts (110, 110) which are of the same shape and which are abuttable, thus forming a passage (105) for receiving the telecommunications cable (220), the abuttable abutments (110, 110) being inserted into the end (215) of the conduit ( 210) can be inserted and pressed together. Sealing system (100) according to claim 1 , characterized in that a first end (120) and a second end (130) are formed on the contact part (110), with a contact section (140) extending between these at least in sections, which at least in sections has a conically reducing cross-section towards the second end (130) towards. Sealing system (100) according to claim 1 or 2 , characterized in that the contact part (110) has the inner surface (160) at least in sections an elastomeric sealant (165) and / or the outer surface (170) at least in sections has an elastomeric sealant (175). Sealing system (100) according to one of the preceding claims, characterized in that a collar (125) is formed at the first end (120) of the contact part (110), which has a first contact surface (126) with a protruding from the first contact surface (126). Centering projection (127) and a second bearing surface (128) with a centering depression (129) sunk into the second bearing surface (128). Sealing system (100) according to one of the preceding claims, characterized in that the contact part (110) consists of a polymer material or contains such, the polymer material being a thermoplastic, preferably a polypropylene or a fiber-reinforced polypropylene, or a polyamide, or a crosslinked polyethylene. Sealing system (100) according to one of the preceding claims, characterized in that two contact parts (110, 110) are connected to one another by a film hinge. A telecommunications system (200) comprising at least one conduit (210) housing a telecommunications cable (220), and a sealing system (100) according to any one of Claims 1 until 6 , which seals the conduit end (215) and passes the telecommunications cable (100) to the outside.

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