CN116224516B - Optical cable - Google Patents
Optical cable Download PDFInfo
- Publication number
- CN116224516B CN116224516B CN202310421032.8A CN202310421032A CN116224516B CN 116224516 B CN116224516 B CN 116224516B CN 202310421032 A CN202310421032 A CN 202310421032A CN 116224516 B CN116224516 B CN 116224516B
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- Prior art keywords
- cavity
- protection
- optical cable
- loose tube
- optical fiber
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Classifications
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- 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
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- 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
- G02B6/4403—Optical cables with ribbon structure
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- 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
- G02B6/4405—Optical cables with longitudinally spaced waveguide clamping
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- 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
- G02B6/441—Optical cables built up from sub-bundles
- G02B6/4411—Matrix structure
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- 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
- G02B6/4416—Heterogeneous cables
- G02B6/4422—Heterogeneous cables of the overhead type
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- 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
Abstract
The invention relates to the technical field of photoelectricity, in particular to an optical cable. The optical cable provided by the invention comprises: skeleton, sheath, optical fiber ribbon unit and loose tube unit, loose tube unit includes loose tube and sets up the optic fibre in loose tube. A first protection cavity is formed in the sheath, the framework is arranged in the first protection cavity, nine cavities are formed in the framework, and the nine cavities are distributed in a nine-grid mode. The optical fiber ribbon unit is arranged in the partial cavity, and the loose tube unit is arranged in the partial cavity. Through setting up the skeleton in first protection intracavity to be formed with nine cavitys on the skeleton, arrange optic fibre in the optic fibre area unit with loose tube unit in the skeleton, can avoid the optic fibre in the optic fibre area unit impaired. And because the optical fiber ribbon unit includes a plurality of optical fiber ribbons, the quantity of its optic fibre is higher than the quantity in the loose tube unit, consequently, compare in prior art, the optical cable in this embodiment can effectively improve the optical fiber filling rate in the optical cable, satisfies the demand of big core number optical cable user.
Description
Technical Field
The invention relates to the technical field of photoelectricity, in particular to an optical cable.
Background
The ADSS optical cable is also called as an all-medium self-supporting optical cable, is a nonmetal optical cable which is composed of medium materials, contains necessary supporting systems and can be directly hung on an electric power tower, is mainly used for a communication route of an overhead high-voltage transmission system, and can also be used for a communication route under overhead laying environments such as a lightning multiple zone, a large span and the like.
In the prior art, ADSS optical cables include a ferrule, a loose tube unit, and a strength member. The loose tube unit and the reinforcing core are arranged in the sleeve, and the loose tube unit is arranged along the circumference of the reinforcing core, so that the existing ADSS optical cable is low in capacity and cannot meet the normal demands of users due to limited optical fiber capacity in the loose tube unit.
Disclosure of Invention
The invention solves the problems that: because the optical fiber capacity in the loose tube unit is limited, the existing ADSS optical cable has lower capacity and cannot meet the normal demands of users.
(II) technical scheme
In order to solve the above technical problems, an embodiment of the present invention provides an optical cable, including: the optical fiber splice comprises a framework, a sheath, an optical fiber ribbon unit and a loose tube unit, wherein the loose tube unit comprises a loose tube and optical fibers arranged in the loose tube;
a first protection cavity is formed in the sheath, the framework is arranged in the first protection cavity, nine cavities are formed in the framework, and the nine cavities are distributed in a nine-grid mode;
the optical fiber ribbon unit is arranged in part of the cavity, and the loose tube unit is arranged in part of the cavity;
the framework is provided with a plurality of contact points with the first protection cavity, the inner wall of the first protection cavity is provided with a plurality of heated expansion parts, and the heated expansion parts are in one-to-one correspondence with the contact points.
Further, the four cavities at the four vertex angles are a first cavity, a second cavity, a third cavity and a fourth cavity respectively;
the loose tube unit is arranged in the first cavity, the second cavity, the third cavity and the fourth cavity.
Further, the first cavity is close to the side wall of the first protection cavity inner wall, the second cavity is close to the side wall of the first protection cavity inner wall, the third cavity is close to the side wall of the first protection cavity inner wall, and the fourth cavity is close to the side wall of the first protection cavity inner wall and corresponds to the first protection cavity inner wall.
Further, a fifth cavity is located between the first cavity and the second cavity, a sixth cavity is located between the second cavity and the third cavity, a seventh cavity is located between the third cavity and the fourth cavity, and an eighth cavity is located between the first cavity and the fourth cavity;
the fifth cavity, the sixth cavity, the seventh cavity and the eighth cavity are internally provided with the optical fiber ribbon unit.
Further, the fifth cavity is close to the side wall of the first protection cavity inner wall, the sixth cavity is close to the side wall of the first protection cavity inner wall, the seventh cavity is close to the side wall of the first protection cavity inner wall, and the eighth cavity is close to the side wall of the first protection cavity inner wall.
Further, the first protection cavity is internally provided with a framework; the fiber optic cable further includes a first strength member;
the cavity in the center is a ninth cavity, and the first reinforcing piece is arranged in the ninth cavity.
Further, a plurality of skeletons are arranged in the first protection cavity;
the cavity in the center is a ninth cavity, and the optical fiber ribbon unit is arranged in the ninth cavity.
Further, a second stiffener is included;
the second reinforcement is arranged in the first protection cavity, and the second reinforcement is arranged between every two adjacent skeletons.
Further, the sheath comprises a first main body and a second main body, and grooves are formed in the first main body and the second main body;
the first main body and the open end of the second main body are connected to form the sheath, and the two grooves form the first protection cavity.
Further, the sheath comprises a water blocking tape layer, an aramid fiber layer, a tearing rope layer and a sheath body layer which are sequentially arranged in layers.
The invention has the beneficial effects that:
the invention provides an optical cable, comprising: skeleton, sheath, optical fiber ribbon unit and loose tube unit, loose tube unit include loose tube and set up in the optic fibre in the loose tube. The novel protective sleeve is characterized in that a first protective cavity is formed in the protective sleeve, the framework is arranged in the first protective cavity, nine cavities are formed in the framework, and the nine cavities are distributed in a nine-grid mode. And part of the cavity is internally provided with the optical fiber ribbon unit, and part of the cavity is internally provided with the loose tube unit. Through setting up the skeleton in first protection intracavity to be formed with nine cavitys on the skeleton, arrange optic fibre in the optic fibre area unit with loose tube unit in the skeleton, can avoid the optic fibre in the optic fibre area unit impaired. And because the optical fiber ribbon unit includes a plurality of optical fiber ribbons, the quantity of its optic fibre is higher than the quantity in the loose tube unit, consequently, compare in prior art, the optical cable in this embodiment can effectively improve the optical fiber filling rate in the optical cable, satisfies the demand of big core number optical cable user. Meanwhile, the loose tube unit and the optical fiber ribbon unit are arranged separately, so that mutual interference between the loose tube unit and the optical fiber ribbon unit can be avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a skeleton according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of an optical cable according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a skeleton according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of an optical cable according to a second embodiment of the present invention.
Icon: 1-an optical cable; 11-skeleton; 111-a first cavity; 112-a second cavity; 113-a third cavity; 114-fourth cavity; 115-a fifth cavity; 116-a sixth cavity; 117-seventh cavity; 118-eighth cavity; 119-ninth cavity; 12-sheath; 121-a first guard cavity; 122-a water blocking tape layer; 123-aramid layers; 124-tearing the rope layer; 125-a sleeve layer; 13-a fiber optic ribbon unit; 14-loose tube units; 141-loose tube; 142-a second guard chamber; 15-an optical fiber; 16-opening; 171-a first stiffener; 172-second stiffener.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 4, an embodiment of the present invention provides an optical cable 1, specifically, an ADSS optical cable 1.
The optical cable 1 in the present embodiment includes: the optical fiber ribbon unit 13 comprises a skeleton 11, a sheath 12, an optical fiber ribbon unit 13 and a loose tube unit 14, wherein the loose tube unit 14 comprises a loose tube 141 and an optical fiber 15 arranged in the loose tube 141. A first protection cavity 121 is formed in the sheath 12, the skeleton 11 is disposed in the first protection cavity 121, nine cavities are formed in the skeleton 11, and nine cavities are arranged in a nine-grid manner. The optical fiber ribbon unit 13 is arranged in part of the cavity, and the loose tube unit 14 is arranged in part of the cavity.
In this embodiment, the optical fiber 15, i.e., the optical fiber, is a fiber made of glass or plastic, and can be used as a light transmission means, the transmission principle being "total reflection of light".
In the present embodiment, the loose tube 141 is a tube made of polypropylene or PBT (butylene terephthalate) that protects the optical fiber 15 from the internal stress and the external side pressure.
In this embodiment, the loose tube unit 14 includes a loose tube 141, a filling paste, and an optical fiber 15 disposed in the loose tube 141, a second protection cavity 142 is formed in the loose tube 141, and the optical fiber 15 is fixed in the second protection cavity 142 by the filling paste.
In the present embodiment, the optical fiber ribbon is a thin flat ribbon formed by arranging 4 to 24 optical fibers 15 in parallel and curing them with UV (ultraviolet) light, and the optical fiber ribbon unit 13 in the present embodiment includes a plurality of optical fiber ribbons.
The optical cable 1 provided in this embodiment includes a skeleton 11, a sheath 12, an optical fiber ribbon unit 13, and a loose tube unit 14. A first protection cavity 121 is formed in the sheath 12, and the optical fiber ribbon unit 13 and the loose tube unit 14 are disposed in the first protection cavity 121 through the skeleton 11, and the sheath 12 is used for protecting the optical fiber ribbon unit 13 and the loose tube unit 14. Nine cavities are formed on the skeleton 11, and the nine cavities are arranged in a nine-grid mode, namely, the nine cavities are arranged in a square shape with three rows and three columns. Of the nine cavities of the skeleton 11, a fiber ribbon unit 13 is disposed in a part of the cavities, and a loose tube unit 14 is disposed in a part of the cavities.
In this embodiment, a thermal expansion portion is further disposed on the inner wall of the first protection cavity 121, and the thermal expansion portion is made of a thermal expansion material. Alternatively, the heated expansion portion is a flexible tape made by adding a foaming agent, which may be melamine.
In this embodiment, the thermal expansion part is a layered structure disposed on the inner wall of the first protection cavity 121, and is made of a thermal expansion material, so that the thermal expansion part can be thermally expanded. And the heated collision parts are in one-to-one correspondence with the contact points of the skeleton 11 and the inner wall of the first protection cavity 121, so that the cost can be reduced, and the volume of the optical cable 1 can be reduced.
In the present embodiment, by disposing the skeleton 11 in the first protection cavity 121 and forming nine cavities on the skeleton 11, arranging the optical fiber ribbon unit 13 and the loose tube unit 14 in the skeleton 11, damage to the optical fibers 15 in the optical fiber ribbon unit 13 can be avoided. Since the optical fiber ribbon unit 13 includes a plurality of optical fiber ribbons, the number of the optical fibers 15 is higher than that in the loose tube unit 14, compared with the prior art, the optical cable 1 in this embodiment can effectively improve the filling rate of the optical fibers 15 in the optical cable 1, and meet the requirements of the users of the optical cable 1 with large core number. Meanwhile, the loose tube unit 14 and the optical fiber ribbon unit 13 are separately arranged, so that mutual interference between the two can be avoided.
As shown in fig. 1 to 4, four cavities located at four vertex angles of the optical cable 1 provided by the embodiment of the present invention are a first cavity 111, a second cavity 112, a third cavity 113 and a fourth cavity 114, respectively. The loose tube unit 14 is disposed in the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114.
In this embodiment, for convenience of description, the cavities at the four top corners are sequentially named as a first cavity 111, a second cavity 112, a third cavity 113 and a fourth cavity 114, and loose tube units 14 are disposed in the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114.
In the present embodiment, since the loose tube unit 14 contains fewer optical fibers 15 and the loose tube 141 is used as a protection, four cavities at four corners are used for arranging the loose tube unit 14, and damage to the optical fiber ribbon unit 13 due to bending or the like of the optical cable 1 can be avoided when the optical fiber ribbon unit 13 is arranged in the cavity at four corners.
In the optical cable 1 provided in this embodiment, the extending direction of the skeleton 11 is the same as the extending direction of the first protection cavity 121, the extending direction of the loose tube unit 14 is the same as the extending direction of the first protection cavity 121, and the extending direction of the optical fiber ribbon unit 13 is the same as the extending direction of the first protection cavity 121.
Accordingly, in the present embodiment, the remaining cavities may be used for arranging the optical fiber ribbon unit 13.
As shown in fig. 1 to 4, in the optical cable 1 provided in the embodiment of the present invention, the side wall of the first cavity 111 adjacent to the inner wall of the first protection cavity 121, the side wall of the second cavity 112 adjacent to the inner wall of the first protection cavity 121, the side wall of the third cavity 113 adjacent to the inner wall of the first protection cavity 121, and the side wall of the fourth cavity 114 adjacent to the inner wall of the first protection cavity 121 are all disposed corresponding to the inner wall of the first protection cavity 121.
In this embodiment, it has been mentioned that the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 are cavities located at four top corners of the skeleton 11, and the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114 all have two side walls close to the first protection cavity 121, and the two side walls close to the first protection cavity 121 of the four cavities are correspondingly arranged with the inner wall of the first protection cavity 121, so that the volume of the optical cable 1 can be effectively reduced, and the capacity of the optical cable 1 is increased while the miniaturization of the optical cable 1 is facilitated.
For example, in the present embodiment, the cross-sectional shape of the first protection cavity 121 is circular, and then the two side walls of the four cavities close to the first protection cavity 121 may be provided with circular arcs, or the four cavities may be provided with a fan shape to better match the shape of the first protection cavity 121.
As shown in fig. 1 to 4, the optical cable 1 provided in the embodiment of the present invention is located between the first cavity 111 and the second cavity 112, is located between the second cavity 112 and the third cavity 113, is located between the third cavity 113 and the fourth cavity 114, is located between the first cavity 111 and the fourth cavity 114, is located between the fifth cavity 115 and the sixth cavity 116, and is located between the fourth cavity 114 and the seventh cavity 117. The fifth cavity 115, the sixth cavity 116, the seventh cavity 117, and the eighth cavity 118 are provided with the ribbon-unit 13 therein.
In this embodiment, for convenience of description, a fifth cavity 115 is located between the first cavity 111 and the second cavity 112, a sixth cavity 116 is located between the second cavity 112 and the third cavity 113, a seventh cavity 117 is located between the third cavity 113 and the fourth cavity 114, and an eighth cavity 118 is located between the first cavity 111 and the fourth cavity 114. The optical fiber ribbon units 13 are arranged in the fifth cavity 115, the sixth cavity 116, the seventh cavity 117 and the eighth cavity 118, and the filling rate of the optical fibers 15 in the optical cable 1 can be effectively improved by arranging the optical fiber ribbon units 13.
Meanwhile, since the ribbon unit 13 is disposed in the fifth, sixth, seventh and eighth cavities 115, 116, 117 and 118, the ribbon unit 13 can be effectively protected from damage, breakage, etc. of the ribbon unit 13 due to bending of the optical cable 1.
As shown in fig. 1 to 4, in the optical cable 1 provided by the embodiment of the present invention, the side wall of the fifth cavity 115 close to the inner wall of the first protection cavity 121, the side wall of the sixth cavity 116 close to the inner wall of the first protection cavity 121, the side wall of the seventh cavity 117 close to the inner wall of the first protection cavity 121, and the side wall of the eighth cavity 118 close to the inner wall of the first protection cavity 121 are all provided with openings 16.
In this embodiment, the fifth cavity 115, the sixth cavity 116, the seventh cavity 117 and the eighth cavity 118 all have a side wall close to the first protection cavity 121, and the side walls of the four cavities close to the first protection cavity 121 are provided with the openings 16, which can play a certain role in buffering, and avoid the damage to the skeleton 11 caused by the too strong rigidity of the skeleton 11.
According to the optical cable 1 provided by the embodiment of the present invention, only one skeleton 11 may be disposed in the first protection cavity 121, or a plurality of skeletons 11 may be disposed.
Example 1
As shown in fig. 1 and fig. 2, according to the optical cable 1 provided by the embodiment of the present invention, one of the frameworks 11 is disposed in the first protection cavity 121; the cable 1 further comprises a first strength member 171. The cavity in the center is a ninth cavity 119, and the first reinforcement member 171 is disposed in the ninth cavity 119.
In this embodiment, a skeleton 11 is disposed in the first protection cavity 121 to improve the filling rate of the optical fibers 15 of the optical cable 1. Of the eight cavities of the backbone 11, the loose tube unit 14 is disposed in the first, second, third and fourth cavities 111, 112, 113 and 114, the optical fiber ribbon unit 13 is disposed in the fifth, sixth, seventh and eighth cavities 115, 116, 117 and 118, the backbone 11 further has a ninth cavity 119 located at a central position, and the first reinforcing member 171 is disposed in the ninth cavity 119 in this embodiment.
In this embodiment, the first reinforcement member 171 is used for reinforcing the strength of the optical cable 1, so as to avoid the optical fiber 15 from being damaged due to bending of the optical cable 1, the first reinforcement member 171 may be made of a non-metal material or a metal material, so as to ensure the light weight of the optical cable 1, and in this embodiment, the first reinforcement member 171 is made of a non-metal material.
In the present embodiment, the extending direction of the first reinforcement 171 is the same as the extending direction of the skeleton 11.
As shown in fig. 1 and 2, the cross section of the ninth cavity 119 of the optical cable 1 provided in this embodiment is disposed corresponding to the cross section of the first strength member 171.
In the present embodiment, it is preferable that the cross section of the ninth cavity 119 is the same as that of the first reinforcement 171, so that on the one hand, the size of the frame 11 can be reduced, and on the other hand, the stability of the first reinforcement 171 in the frame 11 can be improved, and shaking or the like of the first reinforcement 171 can be prevented.
For example, in the present embodiment, the cross section of the first reinforcing member 171 is circular, and the cross section of the ninth cavity 119 is also circular.
Example two
As shown in fig. 3 and 4, according to the optical cable 1 provided by the present invention, a plurality of the skeletons 11 are disposed in the first protection cavity 121. The cavity located at the center is a ninth cavity 119, and the optical fiber ribbon unit 13 is disposed in the ninth cavity 119.
In this embodiment, a plurality of skeletons 11 are disposed in the first protection cavity 121 to increase the filling rate of the optical fibers 15 of the optical cable 1.
In this embodiment, for convenience of description, the cavity located at the center is a ninth cavity 119. Wherein, the loose tube unit 14 is disposed in the first cavity 111, the second cavity 112, the third cavity 113 and the fourth cavity 114, and the optical fiber ribbon unit 13 is disposed in the fifth cavity 115, the sixth cavity 116, the seventh cavity 117, the eighth cavity 118 and the ninth cavity 119, so as to maximally improve the filling rate of the optical fibers 15 of the optical cable 1.
In this embodiment, preferably, in order to save the internal space of the first protection cavity 121, all the skeletons 11 are arranged in a regular pattern in the first protection cavity 121. For example, when three frameworks 11 are disposed in the first protection cavity 121, the three frameworks 11 are arranged in the first protection cavity 121 in a triangular array; when four frameworks 11 are disposed in the first protection cavity 121, the four frameworks 11 are arranged in the first protection cavity 121 in a square array.
The optical cable 1 provided in this embodiment further includes a second strength member 172, as shown in fig. 3 and 4. The second reinforcing member 172 is disposed in the first protection cavity 121, and the second reinforcing member 172 is disposed between two adjacent skeletons 11.
In this embodiment, the second strength member 172 is used to strengthen the optical cable 1, so as to avoid the optical fiber 15 from being damaged due to bending of the optical cable 1.
In the present embodiment, the structure of the second reinforcement member 172 is the same as that of the first reinforcement member 171 in the first embodiment, and will not be described here again.
In the present embodiment, the second reinforcing members 172 are fixed between the adjacent two bobbins 11, and the number of the second reinforcing members 172 is not limited and may be set according to actual use. For example, when two armatures 11 are provided within the first protective lumen 121, optionally, at least one second reinforcement 172 may be provided on the midline of the two armatures 11. When three bobbins 11 are provided in the first protection cavity 121, the second reinforcement 172 may be disposed at the center position of the triangle formed by the three bobbins 11.
Optionally, in this embodiment, four frameworks 11 are disposed in the first protection cavity 121, two second reinforcing members 172 are disposed between every two adjacent frameworks 11, and two second reinforcing members 172 are disposed on two sides of the frameworks 11 respectively, that is, five second reinforcing members 172 are disposed in the first protection cavity 121.
The optical cable 1 provided in the embodiment of the present invention, the first strength member 171 in the first embodiment and the second strength member 172 in the second embodiment are each in a cylindrical structure having the same shape as the optical cable 1.
In this embodiment, the sheath 12 is in a split structure (shown in the drawings), specifically, the sheath 12 is composed of a first main body and a second main body, and grooves are formed on the first main body and the second main body, that is, the first main body and the second main body are in a C-shaped structure, the open ends of the first main body and the second main body are connected to form the sheath 12 in this embodiment, and the grooves on the first main body and the second main body are spliced to form the protection cavity in this embodiment.
As shown in fig. 1 to 4, the optical cable 1 provided in the embodiment of the present invention, the sheath 12 includes a water blocking tape layer 122, an aramid layer 123, a tearing rope layer 124 and a sheath layer 125 sequentially laminated.
In this embodiment, the outside of the skeleton 11 is sequentially wrapped with a water-blocking tape layer 122, an aramid fiber layer 123, a tearing rope layer 124 and a sheath layer 125, so as to play a certain role in protecting the optical cable 1.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct or indirect through an intermediate medium, or may be internal to two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (10)
1. An optical cable, comprising: a skeleton (11), a sheath (12), an optical fiber ribbon unit (13) and a loose tube unit (14), wherein the loose tube unit (14) comprises a loose tube (141) and an optical fiber (15) arranged in the loose tube (141);
a first protection cavity (121) is formed in the sheath (12), the framework (11) is arranged in the first protection cavity (121), nine cavities are formed in the framework (11), and the nine cavities are distributed in a nine-grid mode;
part of the cavity is internally provided with the optical fiber ribbon unit (13), and part of the cavity is internally provided with the loose tube unit (14);
a plurality of contact points are arranged between the framework (11) and the first protection cavity (121), a plurality of heated expansion parts are arranged on the inner wall of the first protection cavity (121), and the heated expansion parts are in one-to-one correspondence with the contact points.
2. The optical cable according to claim 1, wherein the four cavities at the four top corners are a first cavity (111), a second cavity (112), a third cavity (113) and a fourth cavity (114), respectively;
the loose tube unit (14) is arranged in the first cavity (111), the second cavity (112), the third cavity (113) and the fourth cavity (114).
3. The optical cable according to claim 2, wherein the side wall of the first cavity (111) close to the inner wall of the first protection cavity (121), the side wall of the second cavity (112) close to the inner wall of the first protection cavity (121), the side wall of the third cavity (113) close to the inner wall of the first protection cavity (121) and the side wall of the fourth cavity (114) close to the inner wall of the first protection cavity (121) are all arranged corresponding to the inner wall of the first protection cavity (121).
4. The optical cable according to claim 2, characterized in that between the first cavity (111) and the second cavity (112) is a fifth cavity (115), between the second cavity (112) and the third cavity (113) is a sixth cavity (116), between the third cavity (113) and the fourth cavity (114) is a seventh cavity (117), between the first cavity (111) and the fourth cavity (114) is an eighth cavity (118);
the fifth cavity (115), the sixth cavity (116), the seventh cavity (117) and the eighth cavity (118) are provided with the optical fiber ribbon unit (13) therein.
5. The optical cable according to claim 4, wherein the side wall of the fifth cavity (115) close to the inner wall of the first protection cavity (121), the side wall of the sixth cavity (116) close to the inner wall of the first protection cavity (121), the side wall of the seventh cavity (117) close to the inner wall of the first protection cavity (121), and the side wall of the eighth cavity (118) close to the inner wall of the first protection cavity (121) are provided with openings (16).
6. The optical cable according to any one of claims 1 to 5, characterized in that one of the skeletons (11) is provided inside the first protective cavity (121); the optical cable (1) further comprises a first strength member (171);
the cavity in the center is a ninth cavity (119), and the first reinforcing piece (171) is arranged in the ninth cavity (119).
7. The optical cable according to any one of claims 1 to 5, wherein a plurality of said skeletons (11) are provided inside said first protective cavity (121);
the cavity in the center is a ninth cavity (119), and the optical fiber ribbon unit (13) is arranged in the ninth cavity (119).
8. The fiber optic cable of claim 7, further comprising a second strength member (172);
the second reinforcement (172) is arranged in the first protection cavity (121), and the second reinforcement (172) is arranged between two adjacent skeletons (11).
9. The optical cable according to claim 1, wherein the sheath (12) comprises a first body and a second body, both of which are provided with grooves;
the open ends of the first body and the second body are connected to form the sheath (12), and the two grooves form the first protection cavity (121).
10. The optical cable according to any one of claims 1 to 5, wherein the jacket (12) comprises a water-blocking tape layer (122), an aramid layer (123), a ripcord layer (124) and a jacket layer (125) layered in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421032.8A CN116224516B (en) | 2023-04-19 | 2023-04-19 | Optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310421032.8A CN116224516B (en) | 2023-04-19 | 2023-04-19 | Optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116224516A CN116224516A (en) | 2023-06-06 |
| CN116224516B true CN116224516B (en) | 2023-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310421032.8A Active CN116224516B (en) | 2023-04-19 | 2023-04-19 | Optical cable |
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| CN117038192B (en) * | 2023-10-10 | 2023-12-12 | 江苏永鼎股份有限公司 | Extensible photoelectric composite cable |
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| CN116224516A (en) | 2023-06-06 |
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