CN211043746U - High-flame-retardant high-light-transmittance optical cable - Google Patents
High-flame-retardant high-light-transmittance optical cable Download PDFInfo
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- CN211043746U CN211043746U CN201922066788.7U CN201922066788U CN211043746U CN 211043746 U CN211043746 U CN 211043746U CN 201922066788 U CN201922066788 U CN 201922066788U CN 211043746 U CN211043746 U CN 211043746U
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Abstract
The application relates to the technical field of optical cables for communication, in particular to a high-flame-retardant high-light-transmittance optical cable which comprises a subunit cable core and a sheath, wherein the subunit cable core comprises two metal or non-metal reinforcing parts which are arranged in parallel, the center position of the subunit cable core is a butterfly-shaped optical cable extruded by single or multiple UV optical fibers and low-smoke halogen-free sheath materials, in order to improve the tensile property of the whole optical cable, the metal or non-metal reinforcing parts are simultaneously arranged at grooves at two sides of the subunit cable core, in order to ensure the water seepage property of the optical cable and improve the service life of the optical cable, a longitudinal wrapping or wrapping water blocking tape is adopted outside the subunit cable core, so that the optical cable is not influenced by external moisture, a glass fiber tape material which is woven is selected between the water blocking tape and the sheath, when the inside of the optical cable is combusted, harmful substances of dense smoke can be effectively prevented from being emitted, the suffocation of personnel is avoided, and the outer protection adopts low-smoke halogen-free flame-retardant sheath material, so that the whole optical cable has excellent flame retardant property.
Description
Technical Field
The application belongs to the technical field of optical cables, and particularly relates to a high-flame-retardant high-light-transmittance optical cable.
Background
The 21 st century is a network era, the trend is that optical fibers arrive at home and optical fibers arrive at a desktop, thousands of cables are introduced into one cell floor, higher floors need higher safety, and fire protection is extremely important in high-rise buildings.
In the prior art, most of the fillers in the sheath and the sheath of the cable are materials which can generate dense smoke during combustion, so that the visual field of the environment can be seriously influenced when a fire disaster occurs, and toxic substances generated by combustion can suffocate people to cause danger. In addition, in the background of the information age of today, a momentary interruption of communication causes a huge loss, and thus, there is a great demand for the performance of optical cables to maintain the communication capability in a fire.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the high-flame-retardant high-light-transmittance optical cable is provided for solving the performance defect of the optical cable in the fire environment in the prior art.
The utility model provides a technical scheme that its technical problem adopted is: a high flame retardant high light transmittance optical cable comprising:
the cable core is butterfly-shaped in cross section, and V-shaped notches are formed in two sides of the cable core;
the water blocking tape is coated on the outer side of the cable core;
the glass fiber is spirally wound on the outer side of the water blocking tape, the glass fiber has a frosted surface, two adjacent circles wound by the glass fiber are tightly attached to each other, and the glass fiber is wound to form a tubular shape;
and the outer sheath is coated on the outer side of the glass fiber.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the seam intussuseption between the two adjacent circles of glass fiber winding scribbles sealed glue of high temperature resistant.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the water-blocking tape with be equipped with the reinforcement between the cable core, the reinforcement is total two, is located respectively the notch both sides.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, be equipped with the reinforcement of two parallels in the cable core, be located the both sides of the notch symmetry axis of V-arrangement respectively.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the length of cable core is 3.0mm, and the width is 2.0mm, the degree of depth of notch is 0.4 mm.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the oversheath is low smoke and zero halogen flame retardant material.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, glass fiber is equipped with 2 to 3 layers, and is adjacent two-layer glass fiber's seam staggers each other.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the reinforcement is metal material.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, the reinforcement is diameter 0.4mm bonderizing or galvanized steel wire.
Preferably, the utility model discloses a high fire-retardant high luminousness optical cable, oversheath inner wall department still is equipped with the tear rope of aramid yarn material.
The utility model has the advantages that:
1. the optical cable has high flame retardant property, and the inner and outer protective layers of the optical cable are all made of low-smoke halogen-free flame retardant materials, so that the optical cable has good flame retardant effect and high light transmittance;
2. the glass fiber wrapping process is adopted to form a compact glass shielding layer, and due to the high temperature resistance of glass, smoke is effectively prevented from being emitted when the inside of the optical cable is on fire, so that a necessary visual field condition is provided for smooth escape;
3. the butterfly cable core structure has excellent mechanical properties, the optical cable is positioned in the center of the cable core, the side pressure resistance of the optical cable can be greatly improved, and the tensile property of the optical cable in the construction and use processes is greatly improved by the parallel reinforcing parts;
4. the optical cable is of a full-dry structure, water-blocking factice is not used in the optical cable, environmental pollution caused by wiping and dripping of traditional optical cable factice in the construction and use processes is effectively avoided, and the optical cable has excellent environmental protection performance.
Drawings
The technical solution of the present application is further explained below with reference to the drawings and the embodiments.
FIG. 1 is a schematic cross-sectional view of an optical cable with high flame retardance and high light transmittance according to an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a perspective view of a high flame-retardant, high light transmittance optical cable of an embodiment of the present application;
FIG. 3 is a schematic perspective view of a glass fiber lapping structure according to an embodiment of the present application;
fig. 4 is a schematic cross-sectional view of a perspective view of a glass fiber wrapping structure according to an embodiment of the present application.
The reference numbers in the figures are:
10 cable core
20 water-blocking tape
30 glass fiber
40 outer sheath
50 reinforcing element
101 notch
301 seaming.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise specified, "a plurality" means two or more.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
The present embodiment provides a high flame retardant high transmittance optical cable, as shown in fig. 1 to 4, including:
the cable core 10 is butterfly-shaped in cross section, and V-shaped notches 101 are formed in two sides of the cable core;
the water blocking tape 20 is coated on the outer side of the cable core 10;
the glass fiber 30 is spirally wrapped on the outer side of the water blocking tape 20, the glass fiber 30 has a frosted surface, two adjacent circles wound by the glass fiber 30 are tightly attached to each other, and the glass fiber 30 is wrapped to form a tubular shape;
and an outer sheath 40 covering the outside of the glass fiber 30.
According to the high-flame-retardant high-light-transmittance optical cable, the side pressure resistance of the optical cable can be greatly improved due to the butterfly cable core structure, and the cable core 10 can be conveniently torn from the V-shaped notch 101, so that constructors can conveniently perform splicing operation and the like; the water blocking tape 20 can establish a waterproof protective layer at the outer side of the cable core 10 to avoid water inflow; the glass fiber 30 is tightly wound, the sealing degree of the joint 301 between two adjacent circles is high when the optical cable is lapped as shown in fig. 3 by the surface frosting treatment, so that a tight glass shielding layer is formed, and due to the high temperature resistance of the glass, the emission of smoke is effectively blocked when fire happens inside the optical cable; an outer jacket 40 protects the inner layers.
Preferably, in the optical cable with high flame retardance and high light transmittance of the present embodiment, as shown in fig. 3 and 4, a high temperature resistant sealant is filled in a seam 301 between two adjacent turns of the glass fiber 30. The high temperature sealant further improves the sealing at the seam 301 while being self-temperature resistant and capable of maintaining performance at temperatures of approximately 1280 ℃.
Preferably, in the optical cable with high flame retardance and high light transmittance of the present embodiment, as shown in fig. 1 and 2, two reinforcing members 50 are disposed between the water-blocking tape 20 and the cable core 10, and the two reinforcing members 50 are respectively located at two sides of the notch 101. The strength members 50 substantially improve the tensile strength of the cable during construction and use.
Preferably, in the optical cable with high flame retardance and high light transmittance of the present embodiment, as shown in fig. 1 and 2, two parallel reinforcing members 50 are disposed in the cable core 10 and located on two sides of the symmetry axis of the V-shaped notch 101. The strength members 50 in the cable core 10 are located on either side of the axis of symmetry of the notch 101 and when the cable core 10 is torn into two parts, there is also one strength member 50 in each part.
Preferably, in the optical cable with high flame retardance and high light transmittance of the embodiment, the length of the cable core 10 is 3.0mm, the width of the cable core is 2.0mm, and the depth of the notch 101 is 0.4 mm.
Preferably, in the optical cable with high flame retardance and high light transmittance of the embodiment, the outer sheath 40 is a low-smoke halogen-free flame retardant material. Has good flame retardant effect, is not easy to generate smoke, and can not influence the environmental visual field when in fire.
Preferably, in the optical cable with high flame retardance and high light transmittance of the present embodiment, as shown in fig. 3 and 4, the glass fiber 30 is provided with 2 to 3 layers, and the seams 301 of two adjacent layers of the glass fiber 30 are staggered. The structure enables the joints 301 which are most easy to leak of the glass fibers 30 to be mutually staggered, greatly reduces the occurrence of leakage, and ensures the flame retardance and the smoke isolation performance.
Preferably, in the optical cable with high flame retardance and high light transmittance of the present embodiment, the strength member 50 is a metal material.
Preferably, in the optical cable with high flame retardance and high light transmittance of the embodiment, the strength member 50 is a phosphated or galvanized steel wire with a diameter of 0.4 mm. The surface of the steel wire is very wear-resistant, and the fretting wear is effectively inhibited.
Preferably, in the optical cable with high flame retardance and high light transmittance of the embodiment, the inner wall of the outer sheath 40 is further provided with a tear rope made of aramid yarn. The aramid yarn with high toughness and strength and a water blocking function is selected for use, the optical cable sheath layer can be effectively stripped, and the construction efficiency and convenience are improved.
Example 2
This example provides a high flame-retardant high transmittance optical cable, compared to the high flame-retardant high transmittance optical cable of example 1, using woven glass fiber tape instead of the glass fiber of example 1.
Preferably, the lapping overlapping rate of the woven glass fiber tape of the embodiment is 30% -50%, and preferably 30%.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A high flame retardant high light transmittance optical cable, comprising:
the cable core (10) is butterfly-shaped in cross section, and two sides of the cable core are provided with V-shaped notches (101);
the water blocking tape (20) is coated on the outer side of the cable core (10);
the glass fiber (30) is spirally wrapped on the outer side of the water blocking tape (20), the glass fiber (30) is provided with a frosted surface, two adjacent circles wound by the glass fiber (30) are tightly attached to each other, and the glass fiber (30) is wrapped to form a tubular shape;
and the outer sheath (40) is coated outside the glass fiber (30).
2. The optical cable with high flame retardance and high light transmittance according to claim 1, wherein a seam (301) between two adjacent turns of the glass fiber (30) is filled with a high-temperature-resistant sealant.
3. The optical cable with high flame retardance and high light transmittance according to claim 2, wherein two reinforcing members (50) are arranged between the water-blocking tape (20) and the cable core (10), and the two reinforcing members (50) are respectively positioned at two sides of the notch (101).
4. The optical cable with high flame retardance and high light transmittance according to any one of claims 1 to 3, wherein two parallel reinforcing members (50) are arranged in the cable core (10) and are respectively positioned at two sides of the symmetry axis of the V-shaped notch (101).
5. The optical cable with high flame retardance and high light transmittance according to any one of claims 1 to 3, wherein the cable core (10) has a length of 3.0mm and a width of 2.0mm, and the notch (101) has a depth of 0.4 mm.
6. The high flame-retardant high light transmittance optical cable according to any one of claims 1 to 3, wherein the outer sheath (40) is a low-smoke halogen-free flame-retardant material.
7. The optical cable with high flame retardance and high light transmittance according to any one of claims 1 to 3, wherein the glass fibers (30) are provided in 2 to 3 layers, and the seams (301) of two adjacent layers of the glass fibers (30) are staggered with each other.
8. The high flame-retardant high light transmittance optical cable according to claim 4, wherein the strength member (50) is a metal material.
9. The high flame-retardant high light transmittance optical cable according to claim 8, wherein the strength member (50) is a 0.4mm diameter phosphated or galvanized steel wire.
10. The optical cable with high flame retardance and high light transmittance according to any one of claims 1 to 3, wherein a tear rope made of aramid yarn is further arranged at the inner wall of the outer sheath (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922066788.7U CN211043746U (en) | 2019-11-26 | 2019-11-26 | High-flame-retardant high-light-transmittance optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922066788.7U CN211043746U (en) | 2019-11-26 | 2019-11-26 | High-flame-retardant high-light-transmittance optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN211043746U true CN211043746U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922066788.7U Active CN211043746U (en) | 2019-11-26 | 2019-11-26 | High-flame-retardant high-light-transmittance optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117192713A (en) * | 2023-11-08 | 2023-12-08 | 江苏中天科技股份有限公司 | Underwater optical cable |
-
2019
- 2019-11-26 CN CN201922066788.7U patent/CN211043746U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117192713A (en) * | 2023-11-08 | 2023-12-08 | 江苏中天科技股份有限公司 | Underwater optical cable |
| CN117192713B (en) * | 2023-11-08 | 2024-02-02 | 江苏中天科技股份有限公司 | Underwater optical cable |
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