CN214753077U - Silane crosslinked polyethylene dual-flame-retardant signal cable - Google Patents

Abstract

The utility model discloses a two fire-retardant type signal cable of silane crosslinked polyethylene, including the signal cable main part, the inside interior conduit that is provided with of signal cable main part, the interior conduit internal fixation is provided with flexible support, the wire has all been placed in flexible support and the inside space of interior conduit, the interior conduit surface is provided with the jam-proof layer, and the one end outer wall that the jam-proof layer deviates from the interior conduit is provided with the anti-corrosion layer, the one end outer wall that the anti-corrosion layer deviates from the jam-proof layer is provided with the buffer layer, and the one end outer wall that the buffer layer deviates from the anti-corrosion layer is provided with fire-retardant layer. Through setting up the fire-retardant layer in the signal cable main part, can effectively improve the fire behavior of signal cable main part, avoided in case the conflagration breaks out, the problem that flammable signal cable can become the medium of spreading the conflagration very fast.

Description

Silane crosslinked polyethylene dual-flame-retardant signal cable

Technical Field

The utility model relates to a signal cable technical field especially relates to a silane crosslinked polyethylene is two fire-retardant type signal cable.

Background

A signal cable is a signal transmission means. The signal cable has a very small transmitted signal, so as to avoid the signal interference, the signal cable is provided with a shielding layer outside, the shielding layer of the wrapped conductor is generally conductive cloth, a woven copper mesh or copper foil (aluminum), the shielding layer needs to be grounded, an external interference signal can be guided into the ground by the shielding layer, the interference of the interference signal entering the inner conductor is avoided, and the loss of the transmitted signal is reduced.

However, most of the wires inside the existing signal cables are made of transmission plastic outer skins, and once a fire breaks out, flammable signal cables can quickly become a medium for spreading the fire, so that the signal cables need to have flame-retardant and fireproof functions.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a silane crosslinked polyethylene dual-flame-retardant signal cable.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a silane crosslinked polyethylene dual-flame-retardant type signal cable, includes the signal cable main part, the inside interior conduit that is provided with of signal cable main part, the interior conduit internal fixation is provided with flexible support, the wire has all been placed in the inside space of flexible support and interior conduit, the interior conduit surface is provided with the jam-proof layer, and the one end outer wall that the jam-proof layer deviates from the interior conduit is provided with the anti-corrosion layer, the one end outer wall that the anti-corrosion layer deviates from the jam-proof layer is provided with the buffer layer, and the one end outer wall that the buffer layer deviates from the anti-corrosion layer is provided with fire-retardant layer.

As the utility model discloses a preferred technical scheme, inside the pipeline including the flexible support inner tube way set up as centre of a circle annular, and the flexible support is regular triangle design.

As an optimized technical scheme of the utility model, the jam-proof layer, anti-corrosion coating, buffer layer and the fire-retardant layer that interior pipeline surface set up all are the hot melt laminating design.

As an optimized technical scheme of the utility model, the thickness of jam-proof layer is the same with anti-corrosion coating and buffer layer.

As an optimized technical scheme of the utility model, the thickness of fire-retardant layer is the half of jam-proof layer.

Compared with the prior art, the utility model discloses the beneficial effect that can reach is:

1. the flame-retardant layer has the comprehensive properties of good environmental stress cracking resistance, strong chemical corrosion resistance, excellent creep resistance, electrical property and the like, and the temperature resistance level is obviously improved, so that the fireproof performance of the signal cable main body can be effectively improved through the flame-retardant layer arranged on the signal cable main body, and the problem that once a fire disaster occurs, a flammable signal cable can quickly become a medium for spreading the fire disaster is solved;

2. through the flexible support that sets up inside the inner tube way, because the regular triangle design of flexible support, increased the support nature of flexible support, avoided the signal cable main part to receive to lead to the inner tube way to produce too big deformation after the extrusion, lead to the wire in the inner tube way to produce the damage.

Drawings

Fig. 1 is a schematic view of the front view cross-sectional structure of the present invention.

Wherein: 1. a signal cable main body; 2. an inner conduit; 3. a flexible support; 4. a wire; 5. an interference prevention layer; 6. an anti-corrosion layer; 7. a buffer layer; 8. a flame retardant layer.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the invention easy to understand, the invention is further explained below with reference to the specific embodiments, but the following embodiments are only the preferred embodiments of the invention, not all. Based on the embodiments in the implementation, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention. The experimental methods in the following examples are conventional methods unless otherwise specified, and materials, reagents and the like used in the following examples are commercially available unless otherwise specified.

Example (b):

as shown in fig. 1, a silane crosslinked polyethylene dual flame-retardant signal cable comprises a signal cable main body 1, an inner pipeline 2 is arranged inside the signal cable main body 1, a flexible support 3 is fixedly arranged inside the inner pipeline 2, wires 4 are arranged in spaces inside the flexible support 3 and the inner pipeline 2, an anti-interference layer 5 is arranged on the surface of the inner pipeline 2, an anti-corrosion layer 6 is arranged on the outer wall of one end of the anti-interference layer 5, which is far away from the inner pipeline 2, a buffer layer 7 is arranged on the outer wall of one end of the anti-corrosion layer 6, which is far away from the anti-interference layer 5, and a flame-retardant layer 8 is arranged on the outer wall of one end of the buffer layer 7, which is far away from the anti-corrosion layer 6;

the anti-interference layer 5 is made of a thin metal net which can effectively reduce electromagnetic interference, so that the thin metal net is suitable for being used as a raw material of the anti-interference layer 5;

the anti-corrosion layer 6 is made of epoxy resin paint as a raw material, and the material has good corrosion resistance, particularly alkali resistance, better wear resistance and lower shrinkage rate, so that the material is suitable for being used as the raw material of the epoxy resin paint;

a plurality of groups of regular hexagonal holes are formed in the buffer layer 7, so that the external pressure can be effectively absorbed, and the pressure resistance of the device is effectively improved;

the flame-retardant layer 8 is made of silane crosslinked polyethylene, and the silane crosslinked polyethylene is suitable for being used as the raw material of the flame-retardant layer 8 because the material has the comprehensive properties of good environmental stress cracking resistance, strong chemical corrosion resistance, excellent creep resistance and electrical property and the like, and the temperature resistance grade is obviously improved;

in other embodiments, the flexible support 3 is annularly arranged inside the inner pipeline 2 by taking the inner pipeline 2 as a circle center, and the flexible support 3 is in a regular triangle design;

through this design, increased the support nature of flexible support 3, avoided signal cable main part 1 to receive to lead to interior pipeline 2 to produce too big deformation after the extrusion, lead to wire 4 in the interior pipeline 2 to produce the damage.

In other embodiments, the anti-interference layer 5, the anti-corrosion layer 6, the buffer layer 7 and the flame retardant layer 8 disposed on the surface of the inner pipe 2 are all designed by hot melting and adhering;

through the design, the inner pipeline 2 is more tightly connected with the anti-interference layer 5, the anti-corrosion layer 6, the buffer layer 7 and the flame-retardant layer 8, the service life of the device is prolonged, and the phenomenon that the material falls off after long-time use is avoided.

In other embodiments, the tamper-proof layer 5 is the same thickness as the corrosion protection layer 6 and the buffer layer 7, and the flame retardant layer 8 is one-half the thickness of the tamper-proof layer 5.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a silane crosslinked polyethylene is fire-retardant type signal cable doubly, includes signal cable main part (1), its characterized in that: the signal cable comprises a signal cable body (1), an inner pipeline (2) is arranged inside the signal cable body (1), a flexible support (3) is fixedly arranged in the inner pipeline (2), wires (4) are placed in the space inside the flexible support (3) and the inner pipeline (2), an anti-interference layer (5) is arranged on the surface of the inner pipeline (2), an anti-corrosion layer (6) is arranged on the outer wall of one end, deviating from the inner pipeline (2), of the anti-interference layer (5), a buffer layer (7) is arranged on the outer wall of one end, deviating from the anti-interference layer (5), of the anti-corrosion layer (6), and a flame retardant layer (8) is arranged on the outer wall of one end, deviating from the anti-corrosion layer (6), of the buffer layer (7).

2. The silane crosslinked polyethylene double flame retardant signal cable according to claim 1, wherein: the flexible support (3) is annularly arranged inside the inner pipeline (2) by taking the inner pipeline (2) as a circle center, and the flexible support (3) is in a regular triangle design.

3. The silane crosslinked polyethylene double flame retardant signal cable according to claim 1, wherein: the anti-interference layer (5), the anti-corrosion layer (6), the buffer layer (7) and the flame retardant layer (8) arranged on the surface of the inner pipeline (2) are all designed by hot melting and attaching.

4. The silane crosslinked polyethylene double flame retardant signal cable according to claim 1, wherein: the thickness of the anti-interference layer (5) is the same as that of the anti-corrosion layer (6) and the buffer layer (7).

5. The silane crosslinked polyethylene double flame retardant signal cable according to claim 1, wherein: the thickness of the flame-retardant layer (8) is half of that of the anti-interference layer (5).

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