CN214043168U - Black low-smoke halogen-free flame-retardant flexible optical cable sheath - Google Patents
Black low-smoke halogen-free flame-retardant flexible optical cable sheath Download PDFInfo
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- CN214043168U CN214043168U CN202023230063.6U CN202023230063U CN214043168U CN 214043168 U CN214043168 U CN 214043168U CN 202023230063 U CN202023230063 U CN 202023230063U CN 214043168 U CN214043168 U CN 214043168U
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Abstract
The utility model discloses a fire-retardant soft optical cable sheath of black low smoke and zero halogen, include optic fibre, central reinforcement, around covering and inorganic stopping, the outside of optic fibre is provided with no steamed low cigarette elastomer sheath, be provided with the waterproof layer around the outside of covering, contain aramid fiber silk and the yarn that blocks water in the waterproof layer. The utility model discloses simple structure, through setting up low smoke and zero halogen protection against rodents ant polyolefin material, adopt low smoke and zero halogen protection against rodents ant polyolefin material can keep apart% hydrone, good radial waterproof function has, the cooperation waterproof layer, further play the water proof protection effect to the soft optical cable, through setting up fire-retardant layer, polymerize very easily to the aqueous emulsion system in, the special comonomer of phosphorus acrylic ester can show the increase waterborne acrylic coating, the dispersion stability of gluing agent, improve the adhesive force on the surface of metal material like aluminium and galvanized steel, give certain durability flame retardant efficiency and do not have the halogen environmental protection simultaneously, do not appear.
Description
Technical Field
The utility model relates to an optical cable sheath technical field especially relates to a fire-retardant flexible optical cable sheath of black low smoke and zero halogen.
Background
With the rapid development of the industries such as metallurgy, communication, electronics, automation, information networks and the like in China, the dosage of optical cables matched with the optical cables, particularly cold-resistant halogen-free flame-retardant optical cables, is increased rapidly, and the optical cables produced by the conventional common optical cables by polyethylene, polyvinyl chloride or polyolefin blended resin and flame-retardant filling technology can not meet the current special environmental requirements.
Device among the current patent document, all have halopolymer in the fire-retardant thing that traditional cable used, during the burning, halopolymer can produce a large amount of toxic gas and produce a large amount of black flue gas, and these toxic gas make people suffocate, endangers people's health, and when the conflagration breaing out, people can't escape to black flue gas can reduce the sight, increases the rescue degree of difficulty, and the waterproof function of current soft optical cable is relatively poor in addition, damages easily.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a black low-smoke halogen-free flame-retardant flexible optical cable sheath.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a fire-retardant soft optical cable sheath of black low smoke and zero halogen, includes optic fibre, central reinforcement, winds covering and inorganic stopping, the outside of optic fibre is provided with no halogen low smoke elastomer sheath, be provided with the waterproof layer around the outside of covering, contain aramid fiber silk and the yarn that blocks water in the waterproof layer, the outside of waterproof layer is provided with the elastic layer, include fire-retardant low smoke and zero halogen elastic material in the elastic layer, the outside of elastic layer is provided with waterproof enhancement layer, contain low smoke and zero halogen protection mouse ant polyolefin material in the waterproof enhancement layer, the outside of waterproof enhancement layer is provided with fire-retardant layer, the outside of fire-retardant layer is provided with the anticorrosive coating.
Preferably, a cavity is formed in the elastic layer, an elastic part is fixedly mounted on the inner wall of the cavity, and the elastic part is a polyphenyl ether halogen-free low-smoke flame-retardant thermoplastic elastomer; the flexible optical cable can be bent during carrying, and the elasticity of the sheath can be further increased by arranging the elastic piece, so that the damage of the flexible optical cable is reduced, and the flexible optical cable is protected.
Preferably, the central reinforcing member is made of a glass fiber reinforced plastic material; the purpose of the central strength member is to provide support and tension in the cable, and to provide retention if a closure is present.
Preferably, the flame-retardant layer contains a special phosphorus acrylate comonomer; the flame-retardant layer is easy to polymerize into an aqueous emulsion system, the special phosphorus acrylate comonomer can obviously improve the dispersion stability of the aqueous acrylic coating and the adhesive, improve the adhesive force on the surface of metal substances such as aluminum and galvanized steel, and endow certain durability flame-retardant property, halogen-free property, environmental protection and no precipitation.
Preferably, the anticorrosive layer contains a weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating; the weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating has the advantages of strong adhesive force, good temperature resistance, high low-temperature drying speed and the like, has excellent flame retardance, electrical insulating property, corrosion resistance, moisture resistance and ultraviolet resistance, has a certain function of preventing rodents from biting, improves the safety of optical cables, and has wide applicability.
Preferably, the aramid filaments and the water-blocking yarns are interwoven with each other; the aramid fiber wires and the water-blocking yarns can replace traditional water-blocking factice, water seepage performance of the optical cable can be effectively guaranteed, combustible materials in the structure can be reduced, meanwhile, tensile capacity of the optical cable is improved, dragging is facilitated, and environmental pollution can be effectively reduced during production, construction, welding, maintenance and use.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, by arranging the anti-corrosion layer, the anti-corrosion layer contains the weather-proof halogen-free flame-retardant anti-corrosion insulating fluorocarbon coating; the weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating has the advantages of strong adhesive force, good temperature resistance, high low-temperature drying speed and the like, has excellent flame retardance, electrical insulating property, corrosion resistance, moisture resistance and ultraviolet resistance, has a certain function of preventing rodents from biting, improves the safety of optical cables, and has wide applicability.
2. The utility model discloses in, through setting up low smoke and zero halogen protection against rodents ant polyolefin material, adopt low smoke and zero halogen protection against rodents ant polyolefin material can keep apart 99% hydrone, good radial waterproof function has, the cooperation waterproof layer, further play the water proof protection effect to the soft optical cable, through setting up fire-retardant layer, polymerize very easily to the aqueous emulsion system in, the special comonomer of phosphorus acrylic ester can show the increase waterborne acrylic coating, the dispersion stability of gluing agent, improve the adhesive force on the surface of metal matter like aluminium and galvanized steel, give certain durability flame retardant efficiency and do not have the halogen environmental protection simultaneously, do not appear.
Drawings
Fig. 1 is a schematic structural view of a black low-smoke halogen-free flame-retardant flexible optical cable sheath provided by the utility model;
FIG. 2 is a side view of a black low-smoke halogen-free flame-retardant flexible optical cable sheath according to the present invention;
FIG. 3 is a schematic view of the internal structure of the waterproof layer of the black low-smoke halogen-free flame-retardant flexible optical cable sheath according to the present invention;
fig. 4 is a schematic structural view of an embodiment two of the black low-smoke halogen-free flame-retardant flexible optical cable sheath provided by the utility model.
In the figure: the optical fiber type optical fiber cable comprises an optical fiber 1, a halogen-free low-smoke elastomer sheath 2, a central reinforcing part 3, a wrapping layer 4, an inorganic filler 5, a waterproof layer 6, aramid fiber 7, water-blocking yarn 8, an elastic layer 9, a flame-retardant low-smoke halogen-free elastic material 10, a waterproof reinforcing layer 11, a low-smoke halogen-free rat and ant-proof polyolefin material 12, a flame-retardant layer 13, an anticorrosive layer 14, a cavity 15 and an elastic part 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
The first embodiment is as follows:
a black low-smoke halogen-free flame-retardant flexible optical cable sheath comprises an optical fiber 1, a central reinforcement 3, a wrapping layer 4 and an inorganic filler 5, wherein a halogen-free low-smoke elastomer sheath 2 is arranged outside the optical fiber 1, a waterproof layer 6 is arranged outside the wrapping layer 4, aramid fiber 7 and water-blocking yarn 8 are contained in the waterproof layer 6, an elastic layer 9 is arranged outside the waterproof layer 6, a flame-retardant low-smoke halogen-free elastic material 10 is contained in the elastic layer 9, a waterproof reinforcing layer 11 is arranged outside the elastic layer 9, a low-smoke halogen-free rat and ant-proof polyolefin material 12 is contained in the waterproof reinforcing layer 11, a flame-retardant layer 13 is arranged outside the waterproof reinforcing layer 11, an anticorrosive layer 14 is arranged outside the flame-retardant layer 13, a phosphorus acrylate special comonomer is contained in the flame-retardant layer 13, the aramid fiber 7 and the water-blocking yarn 8 are interwoven, and a weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating is contained in the anticorrosive layer 14, see figures 1, 2 and 3; by arranging the flame-retardant layer 13, the aqueous acrylic coating and the adhesive can be easily polymerized into an aqueous emulsion system, the special phosphorus acrylate comonomer can obviously improve the dispersion stability of the aqueous acrylic coating and the adhesive, improve the adhesive force on the surface of metal substances such as aluminum and galvanized steel, endow certain durability flame-retardant performance, is halogen-free, environment-friendly and does not separate out, the aramid fiber 7 and the water-blocking yarn 8 can replace the traditional water-blocking factice, not only can effectively ensure the water seepage performance of the optical cable, but also can reduce the combustible in the structure, simultaneously improve the tensile strength of the optical cable, is beneficial to dragging, can effectively reduce environmental pollution during production, construction, welding and maintenance, the weather-proof halogen-free flame-retardant anticorrosive insulating fluorocarbon coating has the advantages of strong adhesive force, good temperature resistance, high low-temperature drying speed and the like, and also has excellent flame-retardant performance, electrical insulating performance, corrosion resistance, moisture resistance and excellent ultraviolet resistance, the optical cable also has a certain function of preventing rodents from biting, improves the safety of the optical cable, and has wide applicability.
Example two:
relative to the first embodiment, the second embodiment: see fig. 4; a cavity 15 is formed in the elastic layer 9, an elastic part 16 is fixedly arranged on the inner wall of the cavity 15, and the elastic part 16 is a polyphenyl ether halogen-free low-smoke flame-retardant thermoplastic elastomer; the flexible optical cable can be bent during carrying, and the elasticity of the sheath can be further increased by arranging the elastic piece 16, so that the damage of the sheath is reduced, and the flexible optical cable is protected.
The working principle is as follows: by arranging the anticorrosive layer 14, the anticorrosive layer contains the weather-proof halogen-free flame-retardant anticorrosive insulating fluorocarbon coating; the weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating has the advantages of strong adhesive force, good temperature resistance, high low-temperature drying speed and the like, has excellent flame retardance, electrical insulating property, corrosion resistance, moisture resistance and ultraviolet resistance, has a certain function of preventing rodents from biting, improves the safety of optical cables, and has wide applicability. Through setting up low smoke and zero halogen protection against rodents ant polyolefin material 12, adopt low smoke and zero halogen protection against rodents ant polyolefin material can keep apart 99% hydrone, have good radial waterproof function, cooperation waterproof layer 6, further play the waterproof protection effect to soft optical cable, through setting up fire-retardant layer 13, polymerize to the aqueous emulsion system very easily, the special comonomer of phosphorus acrylic ester can show the increase waterborne acrylic coating, the dispersion stability of gluing agent, improve the adhesive force on the surface of metal matter like aluminium and galvanized steel, give certain durability flame retardant efficiency and halogen-free environmental protection simultaneously, do not appear.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A black low-smoke halogen-free flame-retardant flexible optical cable sheath comprises an optical fiber (1), a central reinforcement (3), a wrapping layer (4) and an inorganic filler (5), it is characterized in that the outer side of the optical fiber (1) is provided with a halogen-free low-smoke elastomer sheath (2), a waterproof layer (6) is arranged on the outer side of the wrapping layer (4), aramid fibers (7) and water-blocking yarns (8) are contained in the waterproof layer (6), an elastic layer (9) is arranged on the outer side of the waterproof layer (6), the elastic layer (9) contains a flame-retardant low-smoke halogen-free elastic material (10), a waterproof reinforcing layer (11) is arranged on the outer side of the elastic layer (9), the waterproof reinforcing layer (11) contains a low-smoke halogen-free rat and ant prevention polyolefin material (12), the outer side of the waterproof reinforcing layer (11) is provided with a flame-retardant layer (13), and the outer side of the flame-retardant layer (13) is provided with an anticorrosive layer (14).
2. The black low-smoke halogen-free flame-retardant flexible optical cable sheath according to claim 1, wherein a cavity (15) is formed in the elastic layer (9), an elastic member (16) is fixedly mounted on the inner wall of the cavity (15), and the elastic member (16) is a polyphenylene ether halogen-free low-smoke flame-retardant thermoplastic elastomer.
3. A black low smoke zero halogen flame retardant flexible optical cable sheath according to claim 1, wherein said central strength member (3) is made of glass fiber reinforced plastic material.
4. The sheath for the black low-smoke halogen-free flame-retardant flexible optical cable according to claim 1, wherein the flame-retardant layer (13) contains a special comonomer of phosphorous acrylate.
5. The sheath for the black low-smoke halogen-free flame-retardant flexible optical cable according to claim 1, wherein the anticorrosive layer (14) contains a weather-resistant halogen-free flame-retardant anticorrosive insulating fluorocarbon coating.
6. A black low smoke zero halogen flame retardant flexible optical cable sheath according to claim 1, wherein the aramid filaments (7) and the water-blocking yarns (8) are interwoven with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230063.6U CN214043168U (en) | 2020-12-28 | 2020-12-28 | Black low-smoke halogen-free flame-retardant flexible optical cable sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023230063.6U CN214043168U (en) | 2020-12-28 | 2020-12-28 | Black low-smoke halogen-free flame-retardant flexible optical cable sheath |
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| Publication Number | Publication Date |
|---|---|
| CN214043168U true CN214043168U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023230063.6U Active CN214043168U (en) | 2020-12-28 | 2020-12-28 | Black low-smoke halogen-free flame-retardant flexible optical cable sheath |
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