CN213935733U - High-flame-retardancy cable - Google Patents

Abstract

The utility model discloses a high flame retardant cable, including mounting groove, sheet rubber, spring, cable body, the fire-retardant compound polyolefin layer of inorganic nanometer, fluororubber layer, the compound band layer of plastic-aluminum, ceramic silastic-layer, carborundum layer, TPU layer, sinle silk, insulating layer and the fire-retardant rope of dustless rock wool. The inorganic nano flame-retardant composite polyolefin of the utility model is a halogen-free material, does not generate toxic substances during combustion, is beneficial to escape of personnel, and has better flame retardant property compared with polyolefin; the ceramic silicon rubber layer has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, the extrusion molding process is simple, the residue after combustion is a hard ceramic shell, and the hard shell is not melted and does not drip in a fire environment; the silicon carbide layer has stable chemical performance, good wear resistance and excellent fireproof and flame retardant performance.

Description

High-flame-retardancy cable

Technical Field

The utility model relates to a cable specifically is a high flame retardant cable, belongs to cable technical field.

Background

The cable is generally a rope-like cable formed by twisting several or several groups of wires (at least two in each group), each group of wires are insulated from each other and often twisted around a center, the whole outer surface is wrapped with a highly insulating covering layer, the cable has the characteristics of internal energization and external insulation, and the cable includes a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like.

The service environment of the existing cable is complex, the resistance capability is weak, the cable is extremely easy to be damaged by external force, and the short circuit fire can be caused more seriously, so that the service life of the cable is greatly shortened, the economic pressure is increased, and the potential safety hazard exists. Therefore, a cable having high flame retardancy has been proposed in view of the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a cable with high flame retardancy to solve the above problems.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a cable of high fire resistance, including the cable body, a plurality of mounting grooves that are the annular and distribute are seted up on the cable body surface, the inside wall fixedly connected with symmetry of mounting groove both ends sets up the rubber piece, and the rubber piece bottom is connected with the spring mounting in the mounting groove bottom, the cable body comprises inorganic nanometer fire-retardant compound polyolefin layer, fluororubber layer, plastic-aluminum compound band layer, ceramic silastic-layer, carborundum layer, TPU layer, sinle silk, insulating layer, dustless rock wool fire-retardant rope, inorganic nanometer fire-retardant compound polyolefin layer cladding is on the fluororubber layer surface, fluororubber layer cladding is on the plastic-aluminum compound band layer surface, plastic-aluminum compound band layer cladding is on ceramic silastic-layer surface, ceramic silastic-layer cladding is on the carborundum layer surface, the insulating layer cladding is on the sinle silk surface, and the insulating layer is connected with TPU layer inner wall, the fire-retardant rope of dustless rock wool fills the space department between TPU layer and insulating layer.

Preferably, two rubber sheets in each mounting groove are obliquely arranged towards the middle of the mounting groove.

Preferably, the number of the springs is a plurality, and the springs are linearly distributed at the bottom of the rubber sheet.

Preferably, the inner wall of the ceramic silicon rubber layer and the surface of the silicon carbide layer are both designed to be tooth-shaped, and the surfaces of the silicon carbide layer on the inner wall of the ceramic silicon rubber layer are mutually clamped and matched.

Preferably, the thickness ratio of the organic nanometer flame-retardant composite polyolefin, the fluororubber layer, the aluminum-plastic composite belt layer and the TPU layer is 3:2:1: 2.

The utility model has the advantages that:

the cable is conveniently clamped and matched through the mounting groove in the winding process, so that the position of the cable is limited, and meanwhile, the inclined rubber sheet and the spring are arranged, so that a certain buffering force is provided between the clamp and the cable, and the cable is protected; the inorganic nano flame-retardant composite polyolefin is a halogen-free material, does not generate toxic substances during combustion, is beneficial to escape of personnel, and has better flame retardant property compared with polyolefin; the fluororubber layer has heat resistance, oxidation resistance, oil resistance, corrosion resistance, atmospheric aging resistance and flame retardance, and can effectively prevent electric wires from being ignited; the aluminum-plastic composite tape layer has certain elasticity, when the cable is bent by external force, the cable is ensured to have the performance of bending without deformation to a certain extent, the cable can be used in the environment of repeated bending, and the environmental adaptability of the cable is improved; the ceramic silicon rubber layer has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, the extrusion molding process is simple, the residue after combustion is a hard ceramic shell, and the hard shell is not melted and does not drip in a fire environment; the silicon carbide layer has stable chemical performance, good wear resistance and excellent fireproof and flame retardant properties; the TPU layer has high mechanical strength, outstanding cold resistance, good weather resistance, excellent high-energy ray resistance, high tensile strength, high elongation and low long-term compression permanent deformation rate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the overall side view structure diagram of the utility model.

In the figure: 1. the cable comprises a mounting groove, 2, a rubber sheet, 3, a spring, 4, a cable body, 401, an inorganic nano flame-retardant composite polyolefin layer, 402, a fluororubber layer, 403, an aluminum-plastic composite belt layer, 404, a ceramic silicon rubber layer, 405, a silicon carbide layer, 406, a TPU layer, 407, a wire core, 408, an insulating layer, 409 and a dust-free rock wool flame-retardant rope.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-2, a cable with high flame retardancy comprises a cable body 4, wherein the surface of the cable body 4 is provided with a plurality of annularly distributed mounting grooves 1, inner side walls at two ends of the mounting grooves 1 are fixedly connected with symmetrically arranged rubber sheets 2, the bottom ends of the rubber sheets 2 are connected with springs 3 mounted at the bottom ends of the mounting grooves 1, the cable body 4 is composed of an inorganic nano flame retardant composite polyolefin layer 401, a fluororubber layer 402, an aluminum-plastic composite tape layer 403, a ceramic silicone rubber layer 404, a silicon carbide layer 405, a TPU layer 406, a wire core 407, an insulating layer 408 and a dust-free rock wool flame retardant rope 409, the inorganic nano flame retardant composite polyolefin layer 401 is coated on the surface of the fluororubber layer 402, the fluororubber layer 402 is coated on the surface of the aluminum-plastic composite tape layer 403, the ceramic silicone rubber layer 404 is coated on the surface of the silicon carbide layer 405, the silicon carbide layer 405 is coated on the surface of the TPU layer 406, the insulating layer 408 is coated on the surface of the wire core 407, the insulating layer 408 is connected with the inner wall of the TPU layer 406, and the dust-free rock wool flame-retardant rope 409 is filled in a gap between the TPU layer 406 and the insulating layer 408.

The two rubber sheets 2 in each mounting groove 1 are obliquely arranged towards the middle of the mounting groove 1; the number of the springs 3 is a plurality, and the springs 3 are linearly distributed at the bottom of the rubber sheet 2, so that certain buffer force can be better provided between the clamped cables, and the cables can be protected; the inner wall of the ceramic silicon rubber layer 404 and the surface of the silicon carbide layer 405 are both provided with teeth, and the surfaces of the silicon carbide layer 405 on the inner wall of the ceramic silicon rubber layer 404 are mutually clamped and matched, so that the cable has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like; the thickness ratio of the nano flame-retardant composite polyolefin, the fluororubber layer 402, the aluminum-plastic composite belt layer 403 and the TPU layer 406 is 3:2:1:2, so that the wear resistance and the flame retardance of the cable can be better improved.

When the utility model is used, when the cable is wound, the cable is clamped and matched through the mounting groove 11 in the winding process, so that the position of the cable is limited, and the inclined rubber sheet 2 and the spring 3 are arranged at the same time, so that a certain buffer force is provided between the clamped cables, and the protection of the cable is realized; the inorganic nano flame-retardant composite polyolefin is a halogen-free material, does not generate toxic substances during combustion, is beneficial to escape of personnel, and has better flame retardant property compared with polyolefin; the fluororubber layer 402 has heat resistance, oxidation resistance, oil resistance, corrosion resistance, atmospheric aging resistance and flame retardance, and effectively prevents the electric wire from being ignited; the aluminum-plastic composite tape layer 403 has certain elasticity, so that when the cable is bent by external force, the cable is ensured to have the performance of bending without deformation to a certain extent, the cable can be used in the repeatedly bending environment, and the environmental adaptability of the cable is improved; the ceramic silicon rubber layer 404 has the characteristics of excellent fire resistance, flame retardance, low smoke, no toxicity and the like, residues after combustion are hard ceramic shells, and hard shells are not melted and do not drip in a fire environment; the silicon carbide layer 405 has stable chemical properties, good wear resistance and excellent fire resistance and flame retardance; the TPU layer 406 has high mechanical strength, outstanding cold resistance, good weather resistance, excellent high-energy ray resistance, high tensile strength, high elongation and low long-term compression set.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. A high flame retardant cable comprising a cable body (4), characterized in that: the cable comprises a cable body (4), wherein the surface of the cable body (4) is provided with a plurality of mounting grooves (1) which are distributed annularly, the inner side walls at two ends of each mounting groove (1) are fixedly connected with rubber sheets (2) which are symmetrically arranged, the bottom ends of the rubber sheets (2) are connected with springs (3) arranged at the bottom end of each mounting groove (1), the cable body (4) is composed of an inorganic nano flame-retardant composite polyolefin layer (401), a fluororubber layer (402), an aluminum-plastic composite tape layer (403), a ceramic silicon rubber layer (404), a silicon carbide layer (405), a TPU layer (406), a wire core (407), an insulating layer (408) and a dust-free rock wool flame-retardant rope (409), the inorganic nano flame-retardant composite polyolefin layer (401) is coated on the surface of the fluororubber layer (402), the fluororubber layer (402) is coated on the surface of the aluminum-plastic composite tape layer (403) is coated on the surface of the ceramic silicon rubber layer (404), the ceramic silicon rubber layer (404) is coated on the surface of the silicon carbide layer (405), the silicon carbide layer (405) is coated on the surface of the TPU layer (406), the insulating layer (408) is coated on the surface of the wire core (407), the insulating layer (408) is connected with the inner wall of the TPU layer (406), and the dust-free rock wool flame-retardant rope (409) is filled in a gap between the TPU layer (406) and the insulating layer (408).

2. A cable having high flame retardancy according to claim 1, wherein: every two sheet rubbers (2) in mounting groove (1) all set up to the slope of mounting groove (1) centre department.

3. A cable having high flame retardancy according to claim 1, wherein: the number of the springs (3) is a plurality, and the springs (3) are linearly distributed at the bottom of the rubber sheet (2).

4. A cable having high flame retardancy according to claim 1, wherein: the inner wall of the ceramic silicon rubber layer (404) and the surface of the silicon carbide layer (405) are both designed to be tooth-shaped, and the surfaces of the silicon carbide layer (405) on the inner wall of the ceramic silicon rubber layer (404) are mutually clamped and matched.

5. A cable having high flame retardancy according to claim 1, wherein: the thickness ratio of the inorganic nano flame-retardant composite polyolefin layer to the fluororubber layer (402) to the aluminum-plastic composite belt layer (403) to the TPU layer (406) is 3:2:1: 2.

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