CN108732700B - Submarine optical cable branch unit - Google Patents
Submarine optical cable branch unit Download PDFInfo
- Publication number
- CN108732700B CN108732700B CN201810541691.4A CN201810541691A CN108732700B CN 108732700 B CN108732700 B CN 108732700B CN 201810541691 A CN201810541691 A CN 201810541691A CN 108732700 B CN108732700 B CN 108732700B
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- Prior art keywords
- spherical
- spherical body
- optical fiber
- branch
- fiber cable
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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
- G02B6/4415—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
- G02B6/4431—Protective covering with provision in the protective covering, e.g. weak line, for gaining access to one or more fibres, e.g. for branching or tapping
Abstract
The invention discloses a submarine optical cable branch unit, which relates to the submarine optical cable laying field and comprises a spherical body and a pipeline, wherein a spherical cavity is arranged in the spherical body, the sphere center of the spherical cavity and the sphere center of the spherical body are arranged at intervals, the pipeline comprises a main pipeline and two branch pipelines, the main pipeline and the two branch pipelines are positioned in the same plane, the main pipeline is arranged close to the sphere center of the spherical cavity and fixed on the spherical body, and the two branch pipelines are arranged far away from the sphere center of the spherical cavity and fixed on the spherical body.
Description
Technical Field
The invention relates to the field of submarine optical cable laying, in particular to a submarine optical cable branch unit.
Background
With the rapid development and application of modern optical fiber communication technology, the submarine cable network covers all the large sea areas around the world, and currently 90% of the global transoceanic communication adopts submarine cable communication. For a submarine cable system with a plurality of landing sites, a submarine optical cable branch unit is widely adopted and used for branching optical fibers and power lines in the submarine cable, laying cost of the submarine cable can be reduced, and system fault maintenance in the later period is facilitated. Wherein, as shown in fig. 1, submarine optical cable branching unit has 3 pipelines structurally, wherein 2 pipelines are located same side, 2 pipelines of homonymy have great contained angle, and under the prerequisite that satisfies the required sealing performance of deep sea environment's high water pressure and structural strength, the contained angle of 2 pipelines of homonymy can't reduce to lead to holistic size great, be unfavorable for submarine optical cable branching unit's construction to lay and the transportation.
Disclosure of Invention
In view of the defects in the prior art, the present invention provides an undersea optical fiber cable branching unit, which can reduce the overall size thereof on the premise of satisfying the sealing performance and structural strength required by high water pressure.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: an undersea optical fiber cable breakout unit comprising:
the spherical body is internally provided with a spherical cavity, and the spherical center of the spherical cavity and the spherical center of the spherical body are arranged at intervals;
the pipeline, the pipeline includes a trunk line and two branch pipelines, trunk line and two branch pipelines are located the coplanar, just the trunk line is close to spherical cavity's centre of sphere sets up and is fixed in on the spherical body, two the branch pipeline is kept away from spherical cavity's centre of sphere sets up and is fixed in on the spherical body.
On the basis of the technical scheme, the included angle between the two branch pipelines is less than 50 degrees.
On the basis of the technical scheme, the included angle between the two branch pipelines is 35 degrees.
On the basis of the technical scheme, the spherical body is provided with two oppositely arranged grooves;
the submarine optical cable branch unit further comprises a hoisting structure, and the hoisting structure is fixed in the groove.
On the basis of the technical scheme, the groove is positioned in the middle of the spherical body in the height direction.
On the basis of the technical scheme, the grooves comprise horizontal grooves and vertical grooves which are mutually crossed;
the hoisting structure comprises an arched hanging plate and two transverse plates, supporting legs are arranged at two ends of the hanging plate, the supporting legs are assembled in the vertical grooves, the two transverse plates are respectively clamped in the two supporting legs, and the transverse plates are fixed in the horizontal grooves.
On the basis of the technical scheme, the distance between the sphere center of the spherical cavity and the sphere center of the spherical body is 10 mm.
On the basis of the technical scheme, the pipeline is connected with the spherical body through threads.
On the basis of the technical scheme, a connecting piece is arranged between the two branch pipelines and is detachably connected with the two branch pipelines.
On the basis of the technical scheme, a fixing piece is arranged on the spherical body and detachably connected with the main pipeline.
Compared with the prior art, the invention has the advantages that:
(1) the submarine optical cable branch unit comprises a spherical body and pipelines, wherein a spherical cavity is arranged in the spherical body, and the wall thickness of one side of the spherical body, which is far away from the spherical cavity, can be increased by arranging a certain distance between the spherical center of the spherical cavity and the spherical center of the spherical body, so that the included angle of the two branch pipelines is reduced on the premise that the structural strength of the two branch pipelines far away from the spherical center of the spherical cavity is met, the overall size of the submarine optical cable branch unit is reduced, and the submarine optical cable branch unit is convenient to construct, lay and transport.
(2) When the submarine optical cable branching unit is hoisted, the hanging hook can act on the hanging plate, and the hoisting equipment is used for hoisting the submarine optical cable branch unit, so that the construction laying and transportation of the submarine optical cable branch unit can be completed, and by arranging the hoisting structure, when the submarine optical cable branch unit is hoisted, the tensile force of the lifting hook acting on the hanging plate can be transmitted to the spherical body through the horizontal groove, so that the bolt used for fixing the transverse plate does not directly bear the tensile force of the lifting hook, thereby leading the submarine optical cable branch unit to bear force through screw threads without depending on bolts for fixing transverse plates during transferring and to bear force by depending on a self mechanical structure, thereby ensure hoisting structure's reliability, avoid carrying out the screw thread load through the bolt of fixed diaphragm when transporting, cause the bolt of diaphragm to drop spherical body or make it take place to warp, influence this submarine optical cable branching unit's overall stability.
(3) The pipelines are connected through the threads, so that the situation that the protective layer on the outer layer of the submarine optical cable branch unit is damaged during welding and is corroded due to long-term soaking in seawater, the sealing performance and the structural strength of the submarine optical cable branch unit are easily affected, and the service life of the submarine optical cable branch unit can be prolonged through threaded connection.
(4) The two branch pipelines are connected and fixed through the connecting piece, the pressure bearing capacity of the overall structure of the two branch pipelines can be improved, the submarine optical cable branch unit is located in a high-water-pressure state, the two branch pipelines can keep the original form, and therefore the structural stability of the submarine optical cable branch unit is improved.
(5) The fixing piece is arranged to be fixedly connected with the main pipeline, so that the structural bearing capacity of the main pipeline can be improved, the main pipeline can be kept in the original form under the high-water-pressure state, and the structural stability of the submarine optical cable branch unit is improved.
Drawings
Fig. 1 is a schematic view of a prior art submarine cable breakout unit;
FIG. 2 is a perspective view of an undersea optical fiber cable breakout unit according to an embodiment of the present invention;
FIG. 3 is an enlarged, fragmentary schematic view of an undersea optical fiber cable breakout unit according to an embodiment of the present invention;
FIG. 4 is a schematic top view of an undersea optical fiber cable breakout unit according to an embodiment of the present invention;
fig. 5 is a schematic view of the structure of an undersea optical fiber cable branching unit according to an embodiment of the present invention.
In the figure: 1-spherical body, 11-groove, 12-horizontal groove, 13-vertical groove, 2-pipeline, 21-main pipeline, 22-branch pipeline, 3-hoisting structure, 31-hoisting plate, 32-transverse plate, 33-supporting leg, 34-hanging hole, 4-connecting piece, 5-fixing piece and 6-spherical cavity.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
Referring to fig. 2 to 4, an embodiment of the present invention provides an optical fiber submarine cable branching unit, which includes a spherical body 1 and a pipe 2, wherein a spherical cavity 6 is disposed in the spherical body 1, a center of the spherical cavity 6 is spaced from a center of the spherical body 1, preferably, a distance between the center of the spherical cavity 6 and the center of the spherical body 1 is 10mm, the pipe 2 includes a main pipe 21 and two branch pipes 22, the main pipe 21 and the two branch pipes 22 are located in the same plane, the main pipe 21 is disposed near the center of the spherical cavity 6 and fixed to the spherical body 1, the two branch pipes 22 are disposed away from the center of the spherical cavity 6 and fixed to the spherical body 1, and since a spherical cavity 6 is disposed in the spherical body 1, by disposing the center of the spherical cavity 6 and the center of the spherical body 1 at a certain distance, as can be seen from a comparison between fig. 1 and fig. 5, when the spherical cavity 6 is not shifted, i.e. when the center of the spherical cavity 6 coincides with the center of the spherical body 1, the area between the two branch pipes 22 is a', and when the spherical cavity 6 is shifted, namely, when the sphere center of the spherical cavity 6 and the sphere center of the spherical body 1 have a certain distance, the area a between the two branch pipelines 22 can obviously obtain the pressure-bearing capacity of the area a at the moment which is larger than the pressure-bearing capacity of the area a', by properly reducing the angle of the two branch pipes 22, the pressure-bearing capacity of the area a approaches to that of the area a', therefore, the effect of reducing the angles of the two branch pipelines 22 is achieved, the overall size of the submarine optical cable branch unit is reduced on the premise of meeting the sealing performance and structural strength required by high water pressure in a deep sea environment, and construction, laying and transportation of the submarine optical cable branch unit can be facilitated.
The included angle of the two branch pipelines 22 is smaller than 50 degrees, preferably, the included angle of the two branch pipelines 22 is 35 degrees, so that the included angle of the two branch pipelines is smaller than the existing included angle and is 50 degrees, wherein under the condition that the distance between the sphere center of the spherical cavity 6 and the sphere center of the spherical body 1 is 10mm, the included angle of the two branch pipelines 22 can be reduced to 35 degrees, so that the whole size of the submarine optical cable branching unit can be reduced on the premise of meeting the sealing performance and structural strength required by high water pressure in a deep sea environment, and construction, laying and transportation of the submarine optical cable branching unit are facilitated.
Example 2
Referring to fig. 2 and 3, an embodiment of the invention provides an undersea optical cable branching unit, which is different from embodiment 1 in that a spherical body 1 is provided with two oppositely arranged grooves 11, the undersea optical cable branching unit further comprises a hoisting structure 3, the hoisting structure 3 is fixed in the grooves 11, and construction, laying and transportation operations of the undersea optical cable branching unit can be completed by arranging the hoisting structure 3.
Example 3
Referring to fig. 2 and 3, an embodiment of the invention provides an undersea optical cable branching unit, which is different from embodiment 2 in that the groove 11 includes a horizontal groove 12 and a vertical groove 13 that are intersected with each other, the hoisting structure 3 includes an arched hanging plate 31 and two transverse plates 32, two ends of the hanging plate 31 are provided with support legs 33, the support legs 33 are assembled in the vertical groove 13, the two transverse plates 32 are respectively clamped in the two support legs 33, and the transverse plate 32 is fixed in the horizontal groove 12, when the hoisting structure 3 is installed, the support legs 33 of the hanging plate 31 are inserted in the vertical groove 13, and the transverse plate 32 is clamped in the support legs 33, and meanwhile, the transverse plate 32 is fixed in the horizontal groove 12, that is, the support legs 33 and the transverse plate 32 form a fixing structure similar to a hanging buckle, and the transverse plate 32 is fixed in the horizontal groove 12 by bolts, after the installation of the hoisting structure 3 is completed, a hanging hole 34 is arranged above the hanging plate 31, the hanging hole 34 is positioned at one end of the hanging plate 31 far away from the spherical body 1, the distance from the hanging hole 34 to the two supporting legs 33 is equal, when the submarine optical cable branching unit is hoisted, the hanging hole 34 can be arranged in the hanging hole 34 on the hanging plate 31 through a hook, and the submarine optical cable branching unit can be hoisted through hoisting equipment, so that the construction, laying and transportation of the submarine optical cable branching unit can be completed, and by arranging the hoisting structure 3, when the submarine optical cable branching unit is hoisted, the tensile force of the hook acting on the hanging plate 31 can be transmitted to the spherical body 1 through the horizontal groove 12, so that the bolt for fixing the transverse plate 32 does not directly bear the tensile force of the hook, and the submarine optical cable branching unit does not completely depend on the bolt for fixing the transverse plate 32 to bear the force through threads when being transported, the submarine optical cable branching unit can bear force by depending on a part of a mechanical structure, so that the reliability of the hoisting structure 3 is ensured, the size of thread bearing by fixing the bolt of the transverse plate 32 during transferring is reduced, and the condition that the bolt of the transverse plate 32 falls off the spherical body 1 or deforms the spherical body is reduced, thereby affecting the overall stability of the submarine optical cable branching unit.
Example 4
The embodiment of the invention provides an optical fiber submarine cable branching unit, which is different from embodiment 3 in that the groove 11 is located in the middle position of the spherical body 1 in the height direction, that is, the horizontal groove 12 is located at the intersection position of the spherical body 1 and the plane of the pipeline 2, when the optical fiber submarine cable branching unit is hoisted, the pulling force of a hook acting on the hanging plate 31 can be transmitted to the horizontal groove 12 through the supporting leg 34 and the transverse plate 32 on the hanging plate 31 in sequence and transmitted to the spherical body 1 through the horizontal groove 12, at this time, the pulling force acting on the transverse plate 32 is vertically upward, the direction perpendicular to the transverse plate 32 is not stressed, the bolt for fixing the transverse plate 32 cannot bear the force by threads, so that the bolt for fixing the transverse plate 32 does not bear the pulling force of the hook directly, and the optical fiber submarine cable branching unit bears the force only by the self mechanical structure during transportation, the reliability of the hoisting structure 3 can be ensured without depending on the fixing of the bolts for the transverse plate 32 through thread bearing, and the problem that the bolts for the transverse plate 32 fall off or deform the spherical body 1 due to the fact that the bolts for the transverse plate 32 need to be subjected to thread bearing when being transported is avoided, so that the overall stability of the submarine optical cable branching unit is influenced.
Example 5
The embodiment of the invention provides an optical fiber submarine cable branching unit, which is different from embodiment 1 in that a pipeline 2 is connected with a spherical body 1 through threads, and the pipeline 2 is connected through the threads, so that the phenomenon that a protective layer on the outer layer of the optical fiber submarine cable branching unit is damaged during welding and is corroded after being soaked in seawater for a long time can be avoided, the sealing property and the structural strength of the optical fiber submarine cable branching unit are easily influenced, and the service life of the optical fiber submarine branching unit can be prolonged through threaded connection.
Example 6
The embodiment of the invention provides an optical fiber submarine cable branching unit, which is different from the embodiment 1 in that a connecting piece 4 is arranged between two branch pipelines 22, the connecting piece 4 is detachably connected with the two branch pipelines 22, and the two branch pipelines 22 are fixedly connected through the connecting piece 4, so that the pressure bearing capacity of the overall structure of the two branch pipelines 22 can be improved, the optical fiber submarine cable branching unit is positioned in a high water pressure state, the two branch pipelines 22 can be kept in the original shape, and the structural stability of the optical fiber submarine cable branching unit is improved.
Example 7
The embodiment of the invention provides a submarine optical cable branching unit, which is different from embodiment 1 in that a fixing piece 5 is arranged on a spherical body 1, the fixing piece 5 is detachably connected with a main pipeline 21, and the fixing piece 5 is arranged to be fixedly connected with the main pipeline 21, so that the structural pressure bearing capacity of the main pipeline 21 can be improved, the submarine optical cable branching unit is positioned in a high-water-pressure state, the main pipeline 21 can be kept in an original shape, and the structural stability of the submarine optical cable branching unit is improved.
Example 8
The embodiment of the invention provides an optical fiber submarine branching unit, which is different from the embodiment 1 in that a spherical body 1 is provided with reinforcing ribs, and the reinforcing ribs are arranged on the spherical body 1, so that the bearing capacity of the spherical body 1 can be further increased, the optical fiber submarine branching unit can be kept in the original form under the high-water-pressure state, and the structural stability of the optical fiber submarine branching unit is improved.
Example 9
The embodiment of the invention provides an submarine optical cable branch unit, which is different from the embodiment 1 in that a pressure sensor, a signal emitter and a processor are arranged in a spherical body 1, the processor is connected with the pressure sensor and the signal emitter, and when the pressure sensor detects that the pressure in the spherical body 1 exceeds a safety value, the processor controls the signal emitter to emit an alarm signal to a working platform to remind an operator working on the working platform that the submarine optical cable branch unit is damaged and needs to be maintained and replaced.
Example 10
The embodiment of the invention provides an optical submarine cable branch unit, which is different from the embodiment 9 in that a powerful light connected with a processor and a storage battery connected with the processor are further arranged on the optical submarine cable branch unit, and the processor can control the dimming of the powerful light, wherein the powerful light can emit strong light which is tired by benthons, and the effect of dispersing surrounding benthons in the optical submarine cable branch unit can be achieved by controlling the powerful light to light when the pressure in the spherical body 1 exceeds a safety value, so that the phenomenon that the benthons bite the optical submarine cable branch unit to cause damage can be prevented, the service life of the optical submarine cable branch unit is prolonged, and the economic benefit of the optical submarine cable branch unit is improved.
Example 11
The embodiment of the invention provides a submarine optical cable branching unit, which is different from embodiment 1 in that a reinforcing rib is arranged in a spherical cavity 6, so that the overall bearing capacity of the submarine optical cable branching unit can be improved, the submarine optical cable branching unit can be ensured to be suitable for an environment with strong water pressure, the scene application range of the submarine optical cable branching unit is enlarged, and the economic benefit of the submarine optical cable branching unit is further increased.
Example 12
The embodiment of the invention provides an optical fiber submarine cable branching unit, which is different from the embodiment 1 in that a metal net for preventing biting is arranged outside the optical fiber submarine branching unit, so that the optical fiber submarine cable branching unit can be prevented from being damaged by being bitten by benthos when being positioned at the seabed, the maintenance time of the first optical fiber submarine branching unit is prolonged, the service life of the optical fiber submarine branching unit in seawater is prolonged, and the economic benefit of the optical fiber submarine branching unit is improved.
The present invention is not limited to the above-described embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements are also considered to be within the scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (10)
1. An undersea optical fiber cable breakout unit, comprising:
the ball-shaped structure comprises a spherical body (1), wherein a spherical cavity (6) is arranged in the spherical body (1), and the spherical center of the spherical cavity (6) and the spherical center of the spherical body (1) are arranged at intervals;
pipeline (2), pipeline (2) are including a trunk line (21) and two branch pipes (22), trunk line (21) and two branch pipes (22) are located the coplanar, just trunk line (21) are close to the centre of sphere of spherical cavity (6) sets up and is fixed in on spherical body (1), two branch pipe (22) are kept away from the centre of sphere of spherical cavity (6) sets up and is fixed in on spherical body (1).
2. The undersea optical fiber cable breakout unit of claim 1, wherein: the included angle between the two branch pipelines (22) is less than 50 degrees.
3. The undersea optical fiber cable breakout unit of claim 2, wherein: the included angle between the two branch pipelines (22) is 35 degrees.
4. The undersea optical fiber cable breakout unit of claim 1, wherein:
the spherical body (1) is provided with two oppositely arranged grooves (11);
the submarine optical cable branch unit further comprises a hoisting structure (3), and the hoisting structure (3) is fixed in the groove (11).
5. The undersea optical fiber cable breakout unit of claim 4, wherein: the groove (11) is positioned in the middle position of the spherical body (1) in the height direction.
6. An undersea optical fiber cable breakout unit according to claim 4 or 5, wherein:
the grooves (11) comprise horizontal grooves (12) and vertical grooves (13) which are mutually crossed;
hoisting structure (3) include an arched link plate (31) and two diaphragm (32), link plate (31) both ends are equipped with landing leg (33), landing leg (33) group is located vertical recess (13), two diaphragm (32) are held in two respectively landing leg (33), just diaphragm (32) are fixed in horizontal recess (12).
7. The undersea optical fiber cable breakout unit of claim 1, wherein: the distance between the spherical center of the spherical cavity (6) and the spherical center of the spherical body (1) is 10 mm.
8. The undersea optical fiber cable breakout unit of claim 1, wherein: the pipeline (2) is connected with the spherical body (1) through threads.
9. The undersea optical fiber cable breakout unit of claim 1, wherein: a connecting piece (4) is arranged between the two branch pipelines (22), and the connecting piece (4) is detachably connected with the two branch pipelines (22).
10. The undersea optical fiber cable breakout unit of claim 1, wherein: be equipped with a mounting (5) on spherical body (1), just mounting (5) with trunk line (21) can dismantle and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541691.4A CN108732700B (en) | 2018-05-30 | 2018-05-30 | Submarine optical cable branch unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810541691.4A CN108732700B (en) | 2018-05-30 | 2018-05-30 | Submarine optical cable branch unit |
Publications (2)
| Publication Number | Publication Date |
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| CN108732700A CN108732700A (en) | 2018-11-02 |
| CN108732700B true CN108732700B (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810541691.4A Active CN108732700B (en) | 2018-05-30 | 2018-05-30 | Submarine optical cable branch unit |
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| CN (1) | CN108732700B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113311554B (en) * | 2021-08-02 | 2021-11-26 | 华海通信技术有限公司 | Submarine optical cable branch equipment and submarine optical cable system |
| CN115201984B (en) * | 2022-08-16 | 2023-12-29 | 浙江大学 | Modularized submarine cable branching device capable of being used for monitoring and communication |
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| CN108732700A (en) | 2018-11-02 |
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