CN215729006U - Lightning protection flat optical cable - Google Patents
Lightning protection flat optical cable Download PDFInfo
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- CN215729006U CN215729006U CN202121920159.7U CN202121920159U CN215729006U CN 215729006 U CN215729006 U CN 215729006U CN 202121920159 U CN202121920159 U CN 202121920159U CN 215729006 U CN215729006 U CN 215729006U
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- installation cavity
- lightning protection
- optical fiber
- beam tube
- sheath
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Abstract
The utility model discloses a lightning protection flat optical cable which comprises a sheath, wherein the sheath is in the shape of an oval flat section body, the center of the sheath is provided with a first installation cavity, and two sides of the first installation cavity are respectively provided with a second installation cavity; the central beam tube penetrates through the first installation cavity, the outer wall of the central beam tube is attached to the inner wall of the first installation cavity, and a third installation cavity is formed in the central beam tube; the two reinforcing pieces are arranged in the two second mounting cavities in a one-to-one correspondence mode, and the reinforcing pieces are glass fiber reinforced plastic rods or aramid fiber rods; the optical fiber penetrates through the third installation cavity, and the optical fiber is formed by a plurality of colored optical fiber bundles; the long axis direction of the ellipse is taken as the transverse direction, and the two reinforcing pieces are distributed at the two transverse sides of the central beam tube. The lightning protection flat optical cable has better tensile strength and lightning protection effect, and greatly reduces potential safety hazards such as damage of light source devices and the like caused by the influence of natural disaster changes.
Description
Technical Field
The utility model belongs to an optical cable structure, and particularly relates to a lightning protection flat optical cable.
Background
Existing cable configurations include a jacket and an optical fiber disposed within the jacket. The sheath wraps the periphery of the optical fiber and is used for protecting the optical fiber and preventing the optical fiber from being damaged. The optical fibers of the existing common optical cable are mostly single optical fibers, and the structure is simpler; meanwhile, in order to meet the requirement of construction in outdoor remote special environment, metal steel wires are usually used as reinforcing parts, potential safety hazards such as damage of light source devices and the like caused by the influence of natural disasters exist, and the lightning protection effect is poor; and when the optical cable is twisted or bent, the reinforcing part and the sheath are easy to slide relatively, so that the optical attenuation of the optical fiber is increased.
Disclosure of Invention
In view of the above technical problems, the present invention aims to: the lightning protection flat optical cable solves the problems that an existing common optical cable is simple in structure and poor in lightning protection effect.
The technical scheme of the utility model is as follows:
the utility model relates to a lightning protection flat optical cable, which comprises:
the sheath is in the shape of an oval flat section body, a first installation cavity is arranged in the center of the sheath, and two second installation cavities are respectively arranged on two sides of the first installation cavity;
the central beam tube penetrates through the first installation cavity, the outer wall of the central beam tube is attached to the inner wall of the first installation cavity, and a third installation cavity is formed in the central beam tube;
the two reinforcing pieces are arranged in the two second mounting cavities in a one-to-one correspondence mode, and the reinforcing pieces are glass fiber reinforced plastic rods or aramid fiber rods;
the optical fiber penetrates through the third installation cavity, and is formed by a plurality of colored optical fiber bundles;
the long axis direction of the ellipse is taken as the transverse direction, and the two reinforcing pieces are distributed on the two transverse sides of the central beam tube.
Preferably, the sheath is made of medium density polyethylene, high density polyethylene or flame retardant PE material.
Preferably, the two reinforcing members are symmetrically arranged with respect to the center of the central bundle tube.
Preferably, the third installation cavity is filled with filler, and the filler wraps the periphery of the optical fiber.
Preferably, the filler is a fiber paste.
Preferably, the multiple colored fibers are arranged in an array.
Preferably, the outer wall of the reinforcing piece is fixed to the inner wall of the second mounting cavity through glue or in interference fit with the inner wall of the second mounting cavity.
Preferably, the aperture of the first installation cavity is larger than that of the second installation cavity.
Compared with the prior art, the utility model has the advantages that:
the lightning protection flat optical cable has better tensile strength and lightning protection effect, and greatly reduces potential safety hazards such as damage of light source devices and the like caused by the influence of natural disaster changes.
Drawings
The utility model is further described with reference to the following figures and examples:
fig. 1 is a cross-sectional structural view of a lightning protection flat optical cable according to an embodiment of the present invention.
Wherein: 1. a sheath; 2. an optical fiber; 3. a reinforcement; 4. fiber paste; 5. a central beam tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example (b):
referring to fig. 1, a lightning protection flat optical cable according to an embodiment of the present invention includes a sheath 1, a central bundle tube 5, two strength members 3, a colored optical fiber 2, and a fiber paste 4. Wherein the shape of sheath 1 is oval flat section body, and the center of sheath 1 is equipped with first installation cavity and is equipped with a second installation cavity respectively in the both sides of first installation cavity, and oval flat section body has better protective effect. Center beam tube 5 wears to locate first installation intracavity and the outer wall of center beam tube 5 and the inner wall laminating of first installation cavity for example through viscose fixed or interference fit, has the third installation cavity in the center beam tube 5. Two reinforcing members 3 are arranged in the two second mounting cavities in a one-to-one correspondence manner, and the reinforcing members 3 are glass fiber reinforced plastic rods or aramid fiber rods. The optical fiber 2 is arranged in the third installation cavity in a penetrating way, and the optical fiber 2 is formed by bundling a plurality of colored optical fibers 2 into a whole. The long axis direction of the ellipse is taken as the transverse direction, and the two reinforcing pieces 3 are distributed on the two transverse sides of the central beam tube 5. The optical fiber 2 is formed by the colored optical fiber 2 bundles of multicore number, can improve the structural strength of optical fiber 2, and the reinforcement 3 distributes in the both sides of central tube bank to support from both sides, protect central beam pipe 5, avoid suffering external force and lead to the inside light beam damage of central tube bank. For glass steel pole or aramid fiber pole through reinforcement 3, compare current steel wire reinforcement 3, it is more firm with the combination of sheath 1, when twisting round or bending, can not take place relative slip between with sheath 1 to reduce the light decay of optic fibre 2, improve optic fibre 2's life, have better tensile strength and lightning protection effect, also reduced by a wide margin and received the potential safety hazards such as light source device damage that natural disasters change influences and produce.
Preferably, the sheath 1 is made of medium density polyethylene, high density polyethylene or flame retardant PE material.
Preferably, as shown in fig. 1, the two reinforcing members 3 are arranged symmetrically about the center bundle tube 5.
Preferably, the multiple colored fibers are arranged in an array. Specifically, as shown in fig. 1, the optical fiber is formed by arranging three rows of 12 colored optical fibers in an array, and the three rows of colored optical fibers enclose a substantially oval shape. The structure strength of the optical fiber can be further improved, and the optical fiber can be better suitable for outdoor environment construction. Preferably, the colored optical fiber of the embodiment of the present invention is a G652 type, a G657A type, a G657B type, various multimode type optical fibers, or the like.
Preferably, as shown in fig. 1, the third installation cavity is filled with a filler, and the filler is wrapped on the periphery of the colored optical fiber 2. More preferably, the filler is a fiber paste 4.
Preferably, the outer wall of the reinforcing member 3 is fixed to the inner wall of the second mounting cavity by glue. The relative sliding between the reinforcing member 3 and the sheath 1 during the twisting or bending process of the optical cable can be further effectively prevented, and the optical attenuation of the optical fiber 2 can be further reduced.
Preferably, the aperture of the first mounting cavity is larger than the aperture of the second mounting cavity.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A lightning protection flat optical cable, comprising:
the sheath (1) is in the shape of an oval flat section body, a first installation cavity is arranged in the center of the sheath, and two second installation cavities are respectively arranged on two sides of the first installation cavity;
the central beam tube (5) penetrates through the first installation cavity, the outer wall of the central beam tube (5) is attached to the inner wall of the first installation cavity, and a third installation cavity is formed in the central beam tube (5);
the two reinforcing pieces (3) are correspondingly arranged in the two second mounting cavities one by one, and the reinforcing pieces (3) are glass fiber reinforced plastic rods or aramid fiber rods;
the optical fiber (2) penetrates through the third installation cavity, and the optical fiber (2) is formed by a plurality of colored optical fiber bundles;
the long axis direction of the ellipse is taken as the transverse direction, and the two reinforcing pieces (3) are distributed on the two transverse sides of the central beam tube (5).
2. Lightning protection flat cable according to claim 1, characterized in that the sheath (1) is made of medium density polyethylene, high density polyethylene or flame retardant PE material.
3. Lightning protection flat cable according to claim 1, characterized in that the two strength members (3) are arranged symmetrically centered on the central bundle tube (5).
4. The lightning protection flat cable according to claim 1, characterized in that the third installation cavity is filled with a filler, which is wrapped around the outer circumference of the optical fiber (2).
5. Lightning protection flat cable according to claim 4, characterized in that the filler is a fiber paste (4).
6. The lightning protection flat cable according to claim 1, wherein the plurality of colored optical fibers are arranged in an array.
7. The lightning protection flat cable according to claim 1, characterized in that the outer wall of the strength member (3) is fixed or interference fit with the inner wall of the second installation cavity by glue.
8. The lightning protection flat cable according to claim 1, wherein an aperture of the first mounting cavity is larger than an aperture of the second mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920159.7U CN215729006U (en) | 2021-08-17 | 2021-08-17 | Lightning protection flat optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121920159.7U CN215729006U (en) | 2021-08-17 | 2021-08-17 | Lightning protection flat optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215729006U true CN215729006U (en) | 2022-02-01 |
Family
ID=79996909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121920159.7U Active CN215729006U (en) | 2021-08-17 | 2021-08-17 | Lightning protection flat optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215729006U (en) |
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2021
- 2021-08-17 CN CN202121920159.7U patent/CN215729006U/en active Active
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