CN114236717B - Pressure-resistant optical cable - Google Patents
Pressure-resistant optical cable Download PDFInfo
- Publication number
- CN114236717B CN114236717B CN202111295425.6A CN202111295425A CN114236717B CN 114236717 B CN114236717 B CN 114236717B CN 202111295425 A CN202111295425 A CN 202111295425A CN 114236717 B CN114236717 B CN 114236717B
- Authority
- CN
- China
- Prior art keywords
- parts
- shaped
- reinforcing
- framework
- arc
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4415—Cables for special applications
- G02B6/4427—Pressure resistant cables, e.g. undersea cables
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a pressure-resistant optical cable, which is sequentially provided with an optical unit, a framework, a reinforcing piece and a sheath from inside to outside, wherein the optical unit is formed by combining a single optical fiber or a plurality of optical fibers penetrating into a beam tube; the center of the framework is provided with an axial through hole, the light units are axially arranged in the through hole, limiting grooves are uniformly formed in the circumferential direction of the framework, and strip-shaped protrusions are formed between every two limiting grooves; the reinforcing pieces are arranged on the circumference of the framework and are uniformly distributed, each reinforcing piece is composed of an arc-shaped part and two abutting parts, the arc-shaped parts arch outwards, the two abutting parts arch towards two sides in a semicircular mode, the two abutting parts are respectively connected to two ends of the arc-shaped parts, and the other ends of the two abutting parts are in adaptive abutting connection and fixing with the limiting grooves; the jacket is extruded over the stiffener. The pressure-resistant optical cable has light weight, can well buffer external force through the cooperation of the reinforcing part and the reinforcing part, can quickly recover after the external force is removed, and has good pressure-resistant effect.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a pressure-resistant optical cable.
Background
The cable is composed of a cable core and a sheath, wherein the cable core is composed of one or more optical fibers, the sheath is extruded outside the cable core to form the cable, the sheath mainly has the function of weakening the influence of the external environment on the cable core, and a waterproof layer and a metal layer are arranged in the cable generally to improve the waterproof performance and the pressure resistance of the cable.
The existing pressure-resistant optical cable is mainly formed by wrapping a layer of metal belt, such as aluminum belt or stainless steel belt, on the outer side of a cable core, and the metal belt is respectively called GYTA and GYTS optical cables. In areas with severe environments such as mines and seafloors, the optical cable can bear larger pressure, and sometimes even the cable core needs to be wrapped with a plurality of layers of metal belts, namely, the aim of improving the pressure resistance of the optical cable is fulfilled at the cost of improving the cost and the weight.
Because of the adoption of the multi-layer metal belt, the existing GYTA and GYTS optical cables have larger weight and high cost, and a coiling tool with larger radius is required when coiling into a coil, so that the coiling length in unit space is shorter.
Disclosure of Invention
Aiming at the problems, the invention provides a pressure-resistant optical cable, which solves the problems of high weight, high cost and the like caused by the adoption of single-layer or multi-layer metal belts in GYTA and GYTS optical cables in the prior art.
The technical scheme adopted by the invention is as follows:
the pressure-resistant optical cable is formed by combining a single optical fiber or a plurality of optical fibers penetrating through a beam tube, wherein the optical unit, the framework, the reinforcing piece and the sheath are sequentially arranged from inside to outside;
the framework is provided with an axial through hole in the center, the light units are axially arranged in the through hole, 2n limiting grooves (n=2-5) are uniformly formed in the circumferential direction of the framework, and strip-shaped protrusions are formed between every two limiting grooves;
the reinforcing pieces are provided with n (n=2-5) reinforcing pieces, are uniformly distributed in the circumferential direction of the framework, each reinforcing piece is composed of an arc-shaped part and two abutting parts, the arc-shaped parts arch outwards, the two abutting parts arch towards two sides in a semicircular mode, the two abutting parts are respectively connected to two ends of the arc-shaped parts, and the other ends of the two abutting parts are in adaptive abutting connection and fixing with the limiting grooves;
the sheath is extruded outside the reinforcement.
Optionally, a water-blocking ointment or water-blocking yarn is filled in the gap between the beam tube and the optical fiber.
Optionally, the middle part of the arc part is outwards arched and protrudes.
Optionally, two pairs of the outside of reinforcement sets up a reinforcement portion, reinforcement portion is umbrella-shaped, comprises crescent flank and bar-shaped supporting part, the outside of flank with the support portion is connected at the middle part of inboard to the butt of sheath inner wall, the inner of supporting part with the protruding butt of strip.
Optionally, an axial cavity is formed in the side wing, and the shape of the cavity is similar to that of the side wing.
Optionally, the reinforcement and the reinforcement portion are made of a highly elastic material.
Optionally, a filling rope is arranged in a gap between the sheath and the reinforcing parts.
Optionally, a metal woven mesh is arranged in the cavity.
Optionally, the skeleton is made of a material having a certain hardness.
Optionally, the material is GFRP.
The beneficial effects of the invention are as follows:
(1) The framework is made of a material with certain hardness, and the light units are arranged in the through holes of the framework and can be well protected.
(2) The reinforcement comprises an arc-shaped part and two abutting parts, the abutting parts are fixedly abutted with the limiting grooves, the reinforcement is made of high-elastic materials, the inside of the reinforcement is of a hollow structure, the deformation amplitude is large, and the buffering effect is good.
(3) The reinforcing parts are arranged between every two reinforcing parts, the side wings of the reinforcing parts protect the adjacent reinforcing parts, the cavities are formed in the side wings, and air or metal woven meshes are filled in the cavities, so that the pressure resistance of the optical cable is further improved.
Description of the drawings:
FIG. 1 is a schematic view of a construction of the present invention;
FIG. 2 is a schematic view of another construction of the present invention;
each marked in the figure is:
the light unit 1, the framework 2, the reinforcement 3, the sheath 4, the reinforcement part 5, the filling rope 6, the beam tube 11, the optical fiber 12, the through hole 21, the limit groove 22, the strip-shaped protrusion 23, the arc-shaped part 31, the abutting part 32, the side wing 51, the supporting part 52, the cavity 53 and the metal woven mesh 54.
The specific embodiment is as follows:
the invention is described in further detail below with reference to specific examples and figures of the specification. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Further, the embodiments referred to in the following description are generally only some, but not all, embodiments of the present invention. Therefore, all other embodiments, which can be made by one of ordinary skill in the art without undue burden, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
In the description of the present invention, it should be understood that the terms "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present invention. In the description of the invention, "several" means at least two, for example two, three, etc.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "abutting," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a pressure-resistant optical cable is provided with an optical unit 1, a framework 2, a reinforcement 3 and a sheath 4 in sequence from inside to outside, wherein the optical unit is formed by combining a single or a plurality of optical fibers 12 penetrating into a beam tube 11, and in order to improve the waterproof performance of the optical cable, the gaps between the beam tube and the optical fibers are generally filled with water-blocking yarns or water-blocking ointments.
The skeleton, the center has axial through-hole 21, and the light unit sets up in the through-hole along the axial, and skeleton circumference evenly is provided with 2n spacing groove 22, two liang form strip protruding 23 between the spacing groove, and further, the strip protruding portion is the horizontality.
The reinforcing parts are arranged in n, are uniformly distributed in the circumferential direction of the framework, each reinforcing part is composed of an arc-shaped part 31 and two abutting parts 32, the arc-shaped parts arch outwards, the two abutting parts arch towards two sides in a semicircular mode, the two ends of the arc-shaped parts are respectively connected, the other ends of the abutting parts are completely matched with the radian of the limiting groove, and further, the other ends of the abutting parts extend along the limiting groove until the corresponding strip-shaped protrusions are equal in height.
When the value of n is too low, the optical cable cannot form a uniform pressure-resistant effect, when the value of n is too high, more reinforcing pieces are needed, difficulty is brought to the assembly of the optical cable, and through experiments, when the value of n is 2-5, the pressure-resistant effect is good, and in the embodiment, the value of n is 4.
Further, a reinforcing part 5 is arranged on the outer sides of every two reinforcing parts, the reinforcing part is umbrella-shaped and consists of a crescent-shaped flank 51 and a rod-shaped supporting part 52, the outer sides of the flanks are in butt joint with the inner wall of the sheath, the middle part of the inner sides is connected with the supporting part, and the inner ends of the supporting parts are in butt joint with the strip-shaped protrusions.
Further, the side wings are provided with cavities 53 along the axial direction, the shape of the cavities is similar to that of the side wings, and the side walls of the cavities are respectively parallel to the corresponding side walls of the side wings.
In general, the cavity is filled with air, and in actual use, in order to facilitate the cutting of the optical cable, a separation part can be intermittently arranged in the optical cable, and the separation part plays a role in preventing air leakage; when the cable is used in a high pressure environment, a metal mesh braid 54 can be disposed in the cavity, and the metal mesh braid facilitates the improvement of the pressure resistance of the cable.
In this embodiment, the skeleton is made of a material with a certain hardness, such as GFRP, which is not easy to deform, so that the optical unit can be well protected, the reinforcing member and the reinforcing portion are made of a high-elastic material, such as high-elastic silica gel, the reinforcing member and the reinforcing portion are main buffering components of the present invention, and the high-elastic silica gel material is selected to buffer external force through the larger deformation, so that the flattened optical cable can be quickly recovered after the external force is removed.
The outside extrusion molding sheath of strengthening portion, the sheath is conventional polyolefin sheath material, in order to guarantee the circularity of optical cable, still is provided with filling rope 6 in the space between sheath and the every two strengthening portions, and the filling rope also has certain cushioning effect simultaneously.
Example 2
Embodiment 2 differs from embodiment 1 in that, as shown in fig. 2, the middle part of the arc-shaped part is protruded outwards in an arch shape, and the arch-shaped protrusion is abutted with the inner walls of the two adjacent corresponding strengthening parts.
Claims (9)
1. A pressure-resistant optical cable is characterized in that an optical unit, a framework, a reinforcement and a sheath are sequentially arranged from inside to outside,
the optical unit is formed by combining a single optical fiber or a plurality of optical fibers penetrating through the beam tube;
the framework is provided with an axial through hole in the center, the light units are axially arranged in the through hole, 2n limiting grooves are uniformly formed in the circumferential direction of the framework, n=2-5, and strip-shaped protrusions are formed between every two limiting grooves;
the reinforcing pieces are uniformly distributed in the circumferential direction of the framework, each reinforcing piece is composed of an arc-shaped part and two abutting parts, the arc-shaped parts arch outwards, the two abutting parts arch towards two sides in a semicircular mode, the two abutting parts are respectively connected to two ends of the arc-shaped parts, and the other ends of the two abutting parts are in adaptive abutting connection and fixing with the limiting grooves;
a jacket extruded over the stiffener;
the outer sides of the reinforcing pieces are provided with reinforcing parts in pairs, the reinforcing parts are umbrella-shaped and are composed of crescent-shaped side wings and rod-shaped supporting parts, the outer sides of the side wings are in butt joint with the inner wall of the sheath, the middle parts of the inner sides of the side wings are connected with the supporting parts, and the inner ends of the supporting parts are in butt joint with the strip-shaped protrusions.
2. The pressure-resistant optical cable according to claim 1, wherein the gap between the bundle tube and the optical fiber is filled with water-blocking ointment or water-blocking yarn.
3. A pressure resistant optical fiber cable according to claim 1, wherein the middle portion of the arc-shaped portion is convex in an arc shape to the outside.
4. A pressure resistant optical cable according to claim 1, wherein said side wings are provided with cavities in the axial direction, the shape of said cavities being similar to the shape of said side wings.
5. A pressure resistant optical fiber cable according to claim 1, wherein the strength member and the strength portion are made of a highly elastic material.
6. A pressure resistant optical fiber cable according to any one of claims 4 to 5, wherein a filling rope is provided in a space between the sheath and the reinforcing parts.
7. A pressure resistant optical cable according to claim 4, wherein a metal braid is disposed in the cavity.
8. A pressure resistant optical fiber cable according to claim 7, wherein the backbone is made of a material having a certain hardness.
9. A pressure resistant optical fiber cable according to claim 8, wherein the material is GFRP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111295425.6A CN114236717B (en) | 2021-11-03 | 2021-11-03 | Pressure-resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111295425.6A CN114236717B (en) | 2021-11-03 | 2021-11-03 | Pressure-resistant optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114236717A CN114236717A (en) | 2022-03-25 |
| CN114236717B true CN114236717B (en) | 2023-08-08 |
Family
ID=80743817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111295425.6A Active CN114236717B (en) | 2021-11-03 | 2021-11-03 | Pressure-resistant optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114236717B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898218A (en) * | 2015-04-23 | 2015-09-09 | 浙江富春江光电科技股份有限公司 | Tensile optical cable structure and manufacture method thereof |
| CN109856747A (en) * | 2019-03-18 | 2019-06-07 | 合肥鎏通网络科技有限公司 | A kind of buried optical fiber cables anticorrosive insulation set and preparation method thereof |
| CN209624857U (en) * | 2019-04-18 | 2019-11-12 | 广州汉信通信光缆有限公司 | A kind of mining optical cable with impact resistance |
| CN110888215A (en) * | 2019-12-23 | 2020-03-17 | 常熟共益信息科技有限公司 | Framework type optical cable or cable for 5G network |
| CN111899945A (en) * | 2020-07-14 | 2020-11-06 | 杭州富通通信技术股份有限公司 | Resistance to compression photoelectricity hybrid cable |
| CN113359257A (en) * | 2021-06-29 | 2021-09-07 | 杭州富通通信技术股份有限公司 | Pressure-resistant optical cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6744955B2 (en) * | 2001-06-29 | 2004-06-01 | Alcatel | Buffer tube having a high fiber count ribbon stack packaging configuration and corner cushions |
-
2021
- 2021-11-03 CN CN202111295425.6A patent/CN114236717B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898218A (en) * | 2015-04-23 | 2015-09-09 | 浙江富春江光电科技股份有限公司 | Tensile optical cable structure and manufacture method thereof |
| CN109856747A (en) * | 2019-03-18 | 2019-06-07 | 合肥鎏通网络科技有限公司 | A kind of buried optical fiber cables anticorrosive insulation set and preparation method thereof |
| CN209624857U (en) * | 2019-04-18 | 2019-11-12 | 广州汉信通信光缆有限公司 | A kind of mining optical cable with impact resistance |
| CN110888215A (en) * | 2019-12-23 | 2020-03-17 | 常熟共益信息科技有限公司 | Framework type optical cable or cable for 5G network |
| CN111899945A (en) * | 2020-07-14 | 2020-11-06 | 杭州富通通信技术股份有限公司 | Resistance to compression photoelectricity hybrid cable |
| CN113359257A (en) * | 2021-06-29 | 2021-09-07 | 杭州富通通信技术股份有限公司 | Pressure-resistant optical cable |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114236717A (en) | 2022-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112037979B (en) | 5G is with mixed cable of resistance to compression photoelectricity | |
| US10919359B2 (en) | Connecting strut | |
| CN114236717B (en) | Pressure-resistant optical cable | |
| RU2733991C1 (en) | Non-metallic continuous oil pipe with cables | |
| CN114217395A (en) | High-tensile-resistance optical cable | |
| CN216526432U (en) | Side pressure resistant optical cable | |
| CN113985542A (en) | Long-distance aerial optical cable | |
| CN209961961U (en) | Strong impact-resistant ribbon optical cable | |
| CN216696776U (en) | Optical cable with stronger compressive property | |
| CN114937520B (en) | Tensile and compression-resistant control wire core for coal cutter cable | |
| CN116224516A (en) | Optical cable | |
| CN114460699B (en) | Anti-twisting optical cable | |
| US6987916B2 (en) | Fiber optic central tube cable with bundled support member | |
| CN217238471U (en) | Reinforced optical cable | |
| CN114035289B (en) | Compression-resistant and torsion-resistant optical cable | |
| CN114624834A (en) | Pressure-resistant optical cable | |
| CN113703106A (en) | Optical cable | |
| CN212967195U (en) | Three-core cable of plug wire | |
| KR100507621B1 (en) | Metallic optical cable having circular structure using loose tube optical fiber unit | |
| CN215729000U (en) | High-performance optical fiber reinforced core | |
| CN217405145U (en) | Composite cable | |
| CN217574730U (en) | Rubber tire with tear-resistant structure | |
| CN212410911U (en) | Anti-seismic pressure-resistant outdoor optical cable | |
| CN215522310U (en) | Butt-joint rubber pipe | |
| CN219871905U (en) | Pressure-resistant torsion-resistant optical cable and communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |