CN113311554B - Submarine optical cable branch equipment and submarine optical cable system - Google Patents
Submarine optical cable branch equipment and submarine optical cable system Download PDFInfo
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- CN113311554B CN113311554B CN202110877798.8A CN202110877798A CN113311554B CN 113311554 B CN113311554 B CN 113311554B CN 202110877798 A CN202110877798 A CN 202110877798A CN 113311554 B CN113311554 B CN 113311554B
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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
- G02B6/4439—Auxiliary devices
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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
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/506—Underwater installation
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- Optics & Photonics (AREA)
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Abstract
The application provides an optical fiber submarine cable branch equipment and an optical fiber submarine cable system, the branch equipment comprises a splitter body and at least three branch units connected with the splitter body, at least one branch unit comprises a buffer damper, a universal joint component and a joint box component, and the buffer damper is connected with the joint box component through the universal joint component. Through the angle of adjustment universal joint subassembly, can change the position of buffering bumper shock absorber for connecting the box subassembly to reach the purpose of adjustment branching unit for the angle of spliter body. In addition, the included angle of the two adjacent branch units can be changed by adjusting the angle of the universal joint assembly on the two adjacent branch units, so that the flexibility of adjusting the angle of the branch units is higher. The submarine optical cable system formed by connecting submarine cable lines by using the submarine optical cable branch equipment can adapt to complex submarine topography and improve the laying operation efficiency of the submarine optical cable system by adjusting the angle of the branch unit.
Description
Technical Field
The invention belongs to the technical field of submarine optical cable transmission equipment, and particularly relates to submarine optical cable branch equipment and a submarine optical cable system.
Background
In an undersea optical cable system composed of multiple stations, a Branch Unit (BU) is a key component for constructing a complex and flexible undersea optical cable network and realizing optical communication transmission among the multiple stations. The submarine optical cable branching device mainly comprises a splitter body, a first branching unit and a plurality of second branching units, wherein the first branching unit and the plurality of second branching units are connected with the splitter body. As shown in fig. 1, a submarine cable line connected to a site B through a first branching unit and one of the second branching units output from the site a is defined as a main line, a submarine cable line connected to a site C through the other second branching unit is defined as a branch line, and the main line and the branch line are combined together through a submarine cable branching device, thereby enabling optical communication signal transmission. For a complex submarine environment, if the included angle between two adjacent branch units and the angle of each branch unit relative to the splitter body cannot be adjusted, the construction, laying and transportation of submarine optical cable branch equipment are not facilitated.
In order to realize the adjustable angle between the two branch units, a branch device as shown in fig. 2 may be adopted, a movable spherical cavity 200 is disposed inside the splitter body 100, the first branch unit 300 and the two second branch units 400 penetrate through the splitter body 100 and are fixedly connected with the spherical cavity 200, and the included angle between the two second branch units 400 may be changed by adjusting the distance between the spherical cavity 200 and the splitter body 100. For example, as shown in fig. 3, when the spherical cavity 200 moves towards the first branch unit 300 without changing the position of the splitter body 100, the two second branch units 400 are driven to move in the same direction, and the length of the two second branch units 400 entering the splitter body 100 increases, so that the included angle between the two second branch units 400 is increasedaAnd becomes smaller.
However, due to the small size of the splitter body 100, the movable range of the spherical cavity 200 in the splitter body 100 is small, resulting in a small angle range in which the included angle of the two second branch units 400 can be adjusted. Also, since the first and second branching units 300 and 400 are fixed on the spherical cavity 200 through the splitter body 100, the angle of each branching unit with respect to the splitter body 100 cannot be adjusted, resulting in low flexibility in adjustability of the branching apparatus.
Disclosure of Invention
In view of this, the embodiments of the present application provide an undersea optical cable branching device and an undersea optical cable system, so as to solve the problems of a small adjustable angle range and low adjustment flexibility of a branching unit of an existing undersea optical cable branching device.
In a first aspect, the present application provides an undersea optical fiber cable breakout device comprising: a splitter body and at least three branching units connected with the splitter body; at least one of the branching units includes a cushion damper, a gimbal assembly, and a joint box assembly; the buffer shock absorber is connected with the joint box assembly through the universal joint assembly; one side of the joint box assembly is connected with the universal joint assembly, and the other side of the joint box assembly is connected with the splitter body; the universal joint assembly comprises a first connecting ring, a plurality of universal joint rings and a second connecting ring, one side of the first connecting ring is connected with the universal joint rings, the other side of the first connecting ring is connected with the buffer shock absorber, one side of the second connecting ring is connected with the universal joint rings, the other side of the second connecting ring is connected with the joint box assembly, and the adjacent two universal joint rings are movably connected.
Like this, through the angle of adjustment universal joint subassembly, can change the position of buffering bumper shock absorber for connecting the box subassembly to reach the angle of adjustment branch unit for the spliter body, and the purpose of contained angle between the branch unit. Meanwhile, the angle adjustable range of the universal joint assembly can be increased by increasing the number of universal joint rings, and the flexibility of angle adjustment of the branch unit is further improved.
In one implementation, the universal joint assembly further includes a connection screw, the universal joint ring is provided with a plurality of mounting holes, and the connection screw is connected with two adjacent mounting holes corresponding to the universal joint ring.
The mounting hole comprises a first through hole and a second through hole, the first through hole is coaxially communicated with the second through hole, the radial section area of the first through hole is larger than that of the second through hole, the connecting screw comprises a first screw head, a screw rod and a second screw head, the first screw head and the second screw head are respectively arranged on two sides of the screw rod, and the first screw head and the second screw head are respectively arranged in the first through hole corresponding to the two adjacent universal joint rings.
The radial cross-sectional area of the first screw head and the radial cross-sectional area of the second screw head are both larger than the radial cross-sectional area of the second through hole and both smaller than the radial cross-sectional area of the first through hole; the radial cross-sectional area of the screw is smaller than that of the second through hole.
Therefore, the two universal joint rings can be connected together through the connecting screw and the mounting hole, and the two universal joint rings can perform relative deflection movement, so that the effect of changing the angle of the universal joint assembly is achieved. And a movable space for connecting the screw is formed between the first through hole and the first screw head and between the first through hole and the second screw head, so that the movement of the universal joint ring is more flexible, and meanwhile, the deflectable angle range of the universal joint ring is larger, and the deflectable angle range of the universal joint assembly is further improved.
In one implementation manner, the universal joint ring is configured in a structure with a circular ring-shaped radial section, and a plurality of mounting holes are uniformly arranged in the circumferential direction of the radial section of the universal joint ring.
Therefore, the circular ring-shaped structure has higher stability, and the capability of the universal joint ring for resisting seawater pressure can be improved. Through a plurality of mounting holes of even setting, not only can improve the stability that two adjacent universal joint rings are connected, the angle of the not equidirectional adjustment that can be even through the relative deflection motion of universal joint ring moreover.
In one implementation, the gimbal assembly further includes a protective sleeve, and the protective sleeve is disposed on the gimbal ring.
Therefore, impurities such as dust, gravel and the like can be prevented from entering the joint of the two universal joint rings, and the rotation of the universal joint rings is influenced. Meanwhile, seawater infiltration can be prevented, and the sealing performance of the universal joint assembly is improved.
In one implementation, the connector box assembly includes a submarine cable connector box and a connecting rod, one side of the submarine cable connector box is connected to the second connecting ring, the other side of the submarine cable connector box is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the splitter body.
Therefore, the submarine cable optical fibers can be connected together through the submarine cable joint box, and therefore transmission of optical fiber signals is achieved. The connecting rod has the effect of being connected submarine cable splice box and spliter body and appearance fine unit, improves the stability of structure.
In one implementation manner, a fiber accommodating unit is arranged inside the splitter body, and the splitting unit is connected with the fiber accommodating unit through the connecting rod.
Therefore, the fiber containing unit is used for containing and storing the submarine cable optical fiber line accessed by the branch unit, providing a storage space for the redundant submarine cable optical fiber line and preventing the submarine cable optical fiber line from being corroded by seawater.
In one implementation manner, an insulation assembly is disposed on the fiber accommodating unit, the branch unit includes at least two first branch units, the first branch units are connected with the output submarine cable, and at least one of the first branch units is connected with the insulation assembly through the connecting rod.
Therefore, the at least one first branch unit is in insulation connection with the fiber containing unit and is in grounding connection with the splitter body, so that the insulativity of the submarine optical cable branch equipment can be increased, the submarine optical cable branch equipment meets the requirements of high voltage and high current of submarine cable optical fiber transmission, and the normal operation of the submarine optical cable branch equipment is ensured.
In one implementation, the undersea optical fiber cable branching device further comprises a hoisting component, and the hoisting component is sleeved on the joint box assembly.
Therefore, the hoisting equipment can be directly connected with the hoisting part when hoisting the submarine optical cable branching equipment, the structure of the splitter body cannot be damaged, and the convenience of hoisting operation is improved.
In one implementation manner, a plurality of hoisting holes are formed in the hoisting part, the hoisting holes are arranged oppositely by taking the central axis of the joint box assembly as a symmetry axis, and the connecting line of at least one group of the hoisting holes arranged oppositely is vertical to the plane determined by at least two branch units.
Therefore, the hoisting holes in different positions are formed, so that the hoisting equipment can hoist the submarine optical cable branch equipment from different angles to adapt to different installation positions, and the flexibility of laying operation is improved.
In a second aspect, the present application provides an undersea optical cable system, including a plurality of submarine cable lines and a plurality of station devices, where each submarine cable line is connected to one station device, and each submarine cable line is provided with an undersea optical cable branch device as described in the first aspect; each submarine cable line is connected with an adjacent submarine cable line through the submarine optical cable branch equipment so as to realize signal transmission between the station equipment corresponding to the submarine cable line and the station equipment corresponding to the adjacent submarine cable line, wherein the adjacent submarine cable line is a submarine cable line having a communication relationship with each submarine cable line.
Therefore, when the submarine cable line is laid, the angle of the submarine optical cable branch unit can be adjusted to adapt to different submarine terrains, the efficiency of submarine cable laying operation is improved, and the flexibility of submarine optical cable system net laying can be improved.
The application provides an optical fiber submarine cable branching device and an optical fiber submarine cable system, wherein the branching device comprises a splitter body and at least three branching units connected with the splitter body; at least one of the branching units includes a cushion damper, a gimbal assembly, and a joint box assembly; the buffer shock absorber is connected with the joint box assembly through the universal joint assembly; one side of the joint box assembly is connected with the universal joint assembly, and the other side of the joint box assembly is connected with the splitter body; the universal joint assembly comprises a first connecting ring, a plurality of universal joint rings and a second connecting ring, one side of the first connecting ring is connected with the universal joint rings, the other side of the first connecting ring is connected with the buffer shock absorber, one side of the second connecting ring is connected with the universal joint rings, the other side of the second connecting ring is connected with the joint box assembly, and the adjacent two universal joint rings are movably connected. Through the angle of adjustment universal joint subassembly, can change the position of buffering bumper shock absorber for connecting the box subassembly to reach the purpose of adjustment branching unit for the angle of spliter body. And, through the angle of the universal joint subassembly of two adjacent branching units of adjustment, can change the contained angle of two adjacent branching units, the flexibility of branching unit angle adjustment is higher. The submarine optical cable system formed by connecting submarine cable lines by using the submarine optical cable branch equipment can adapt to complex submarine topography and improve the laying operation efficiency of the submarine optical cable system by adjusting the angle of the branch unit.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an undersea optical fiber cable system;
FIG. 2 is a schematic structural view of an undersea optical fiber cable breakout device;
FIG. 3 is a schematic view of the submarine optical cable branching device of FIG. 2 with the first and second branching units adjusted;
fig. 4 is a schematic structural diagram of an undersea optical fiber cable branching apparatus provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a branching unit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a connection rod connected with a splitter body and a fiber accommodating unit according to an embodiment of the present disclosure;
FIG. 7 is a cross-sectional view of a gimbal assembly according to an embodiment of the present disclosure;
FIG. 8 is a cross-sectional view of a gimbal ring according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a connection screw according to an embodiment of the present disclosure;
FIG. 10 is a schematic view of a gimbal ring and connection screw connection provided by an embodiment of the present application;
FIG. 11 is a left side view of a gimbal ring according to an embodiment of the present disclosure;
FIG. 12 is a schematic illustration of a gimbal ring mounting hole distribution provided in an embodiment of the present application;
fig. 13 is a schematic structural diagram of a hoisting component provided in an embodiment of the present application.
Description of the drawings
100-splitter body, 200-spherical cavity, 300-first branch unit, 400-second branch unit, 1-splitter body, 2-branch unit, 21-first branch unit, 3-buffer damper, 4-universal joint component, 41-first connecting ring, 42-universal joint ring, 421-mounting hole, 4211-first through hole, 4212-second through hole, 43-second connecting ring, 44-connecting screw, 441-first screw head, 442-screw rod, 443-second screw head, 45-protective sleeve, 5-joint box component, 51-submarine cable joint box, 52-connecting rod, 6-fiber containing unit, 61-insulating component, 7-hoisting component and 71-hoisting hole.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
The submarine optical cable branch equipment is a key component for forming a submarine optical cable network and realizing optical communication transmission among a plurality of stations. The submarine optical cable branching device mainly comprises a splitter body, a first branching unit and a plurality of second branching units, wherein the first branching unit and the plurality of second branching units are connected with the splitter body. As shown in fig. 1, the submarine cable system is constructed in such a way that the submarine cable lines connected to station a and station B are defined as main lines and the submarine cable lines connected to station C are defined as branch lines, wherein the submarine cable lines connected to station a and the first branch unit of BU are defined as incoming submarine cables and the submarine cable lines connected to station B and station C and the second branch unit of BU are defined as outgoing submarine cables. The main line and the branch line are combined together through submarine optical cable branch equipment to realize optical communication signal transmission. For a complex submarine environment, if the included angle between two adjacent branch units and the angle of each branch unit relative to the splitter body cannot be adjusted, the construction, laying and transportation of submarine optical cable branch equipment are not facilitated.
In a first aspect, the present application provides an undersea optical fiber cable breakout device comprising: a splitter body 1 and at least three branching units 2 connected to the splitter body 1.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an undersea optical fiber cable branching apparatus according to an embodiment of the present application. In this embodiment, the splitter body 1 is set to be a spherical cavity structure, and the spherical cavity structure has a high pressure resistance, so that the splitter body 1 can be prevented from deforming under the condition of a large seabed pressure, the structural stability of the splitter body 1 is improved, and the protection is provided for the submarine cable optical fiber line and the device inside the splitter body 1. Meanwhile, the splitter body 1 is made of corrosion-resistant materials, so that the splitter body can be prevented from being corroded by seawater, and the service life of the submarine optical cable splitting equipment is prolonged.
In one implementation, as shown in fig. 6, a fiber containing unit 6 is arranged inside the splitter body 1, the branch unit 2 is sequentially connected with the splitter body 1 and the fiber containing unit 6 through the connecting rod 52, the fiber containing unit 6 is used for storing and electrically connecting redundant submarine cable optical fiber lines accessed by the branch unit 2, and when a submarine cable is pulled by an external force, the redundant submarine cable optical fiber lines in the fiber containing unit 6 can be pulled out, so that the pressure bearing capacity of the submarine cable can be improved, and the submarine cable is prevented from being broken.
For example, the splitter body 1 is sleeved outside the fiber containing unit 6, the structures of the splitter body 1 and the fiber containing unit 6 may be set to include, but are not limited to, a spherical cavity, a square cavity, and a rectangular cavity, and the splitter body 1 and the fiber containing unit 6 may be set to have the same shape structure or may be set to have structures with different shapes, which is not specifically limited in this application. The high-voltage cable optical fiber branching device has the advantages that the insulating colloid is filled between the splitter body 1 and the fiber containing unit 6, the effect of fixing the position of the fiber containing unit 6 is achieved, the insulating effect is achieved, the high-voltage current transmitted by a submarine cable can be prevented from damaging the structure of the fiber containing unit 6, and the submarine cable optical fiber branching device is protected.
In one implementation, an insulating assembly 61 is disposed on the fiber accommodating unit 6, the branch unit 2 includes at least two first branch units 21, the first branch units 21 are connected to an output submarine cable, and at least one first branch unit 21 is connected to the insulating assembly 61 through the connecting rod 52. In this embodiment, at least one first branch unit 21 is connected to the fiber accommodating unit 6 in an insulating manner through the insulating assembly 61, and is connected to the splitter body 1 in a grounding manner, and this part of the first branch unit 21 is the grounding branch unit, which can increase the insulation of the submarine optical cable branching equipment, so that the submarine optical cable branching equipment meets the requirements of high voltage and high current for submarine optical fiber transmission, and the normal operation of the submarine optical cable branching equipment is ensured.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a branch unit according to an embodiment of the present disclosure. In the embodiment, at least one of the branching units 2 includes a cushion damper 3, a universal joint assembly 4, and a joint box assembly 5, and the cushion damper 3 is connected to the joint box assembly 5 through the universal joint assembly 4; one side of the joint box assembly 5 is connected with the universal joint assembly 4, and the other side of the joint box assembly 5 is connected with the splitter body 1.
Wherein the buffer damper 3 has the function of protecting the submarine cable structure. When the submarine optical cable branch equipment is laid in construction or used, the submarine optical cable branch equipment is influenced by seawater fluctuation, the submarine cable can be bent, and if the submarine cable is bent excessively, the internal structure of the submarine cable can be damaged, so that a submarine optical cable system fails. Buffer damper 3 mainly is made by flexible material such as rubber, and buffer damper 3 is connected with the submarine cable, can cushion external force such as sea water fluctuation, reduces external force to the influence of submarine cable structure, prevents that the submarine cable from excessively bending, plays the guard action to the submarine cable.
The connector box assembly 5 is used for being connected with a submarine cable optical fiber to realize transmission of optical fiber signals. In one implementation, the connector box assembly 5 includes a submarine cable connector box 51 and a connecting rod 52, one side of the submarine cable connector box 51 is connected to the second connecting ring 43, the other side of the submarine cable connector box 51 is connected to one end of the connecting rod 52, and the other end of the connecting rod 52 is connected to the splitter body 1.
The sea cable joint box 51 may be a sea cable joint box of the UJ technology, which is a joint technology certified by the UJ Consortium (international joint Consortium) and capable of connecting sea cables of different specifications. In the deep sea environment, the submarine cable joint box adopting the UJ technology has good reliability, and the submarine cable joint box 51 can be connected with submarine cables of various specifications, so that the compatibility of submarine optical cable branch equipment is improved.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a connection rod, a splitter body and a fiber accommodating unit according to an embodiment of the present disclosure. The connecting rod 52 is used to connect the submarine cable joint box 51 with the splitter body 1 and the fiber containing unit 6, thereby structurally achieving mechanical connection of the splitter unit 2 with the splitter body 1 and the fiber containing unit 6, respectively. Specifically, the connecting rod 52 may be made of a material with good electrical conductivity, such as copper, so as to connect the branching unit 2 with the splitter body 1 and the fiber accommodating unit 6 at the same potential. The connecting rod 52 can be connected with the splitter body 1 and the fiber containing unit 6 in a threaded manner, so that the structural stability can be improved, and the splitting unit 2 is flexible to mount and convenient to detach.
The buffer damper 3 and the joint box assembly 5 are connected together through the universal joint assembly 4 and are respectively arranged on two sides of the universal joint assembly 4. The universal joint assembly 4, the buffer shock absorber 3 and the joint box assembly 5 can be connected in a threaded mode, so that the flexibility of installation of all parts is improved. And moreover, sealing devices such as sealant, sealing rings and the like are arranged at the threaded connection part, so that the sealing performance of the connection part is further improved.
Referring to fig. 7, fig. 7 is a cross-sectional structural view of a gimbal assembly according to an embodiment of the present disclosure. The universal joint component 4 is set to be an angle-adjustable component structure, and the position of the buffer damper 3 relative to the joint box component 5 can be changed by adjusting the angle of the universal joint component 4, so that the purposes of adjusting the angle of the branch unit 2 relative to the splitter body 1 and adjusting the included angle between two adjacent branch units 2 are achieved.
Specifically, the universal joint assembly 4 includes a first connection ring 41, a plurality of universal joint rings 42, and a second connection ring 43, one side of the first connection ring 41 is connected to the universal joint ring 42, the other side of the first connection ring 41 is connected to the shock absorber 3, one side of the second connection ring 43 is connected to the universal joint ring 42, the other side of the second connection ring 43 is connected to the joint box assembly 5, and two adjacent universal joint rings 42 are movably connected.
Two adjacent gimbal rings 42 are movably connected, and one gimbal ring 42 can realize deflection motion at a certain angle relative to the gimbal ring 42 connected with the gimbal ring, so that the gimbal assembly 4 can bend at a certain angle, and the purpose of adjusting the angle of the branch unit 2 is achieved.
In one implementation, the gimbal rings 42 are provided with a plurality of mounting holes 421, and the gimbal assembly 4 further includes connecting screws 44, where the connecting screws 44 are connected with the corresponding mounting holes 421 of two adjacent gimbal rings 42; two adjacent gimbal rings 42 are connected by the connecting screw 44 and the mounting hole 421.
Referring to fig. 11, fig. 11 is a left side view of a gimbal ring according to an embodiment of the present disclosure. In one implementation, the universal joint ring 42 is configured to have a circular ring-shaped radial cross section, and a plurality of mounting holes 421 are uniformly formed in the circumferential direction of the radial cross section of the universal joint ring 42. In this embodiment, the circular ring structure can improve the structural stability of the gimbal ring 42 against seawater pressure. The 6 mounting holes 421 are uniformly arranged along the circumferential direction of the radial section of the universal joint ring 42, and two adjacent universal joint rings 42 are movably connected with the mounting holes 421 through the connecting screws 44, so that the angles in different directions can be uniformly adjusted through relative deflection movement of the two adjacent universal joint rings 42.
In one implementation, the first connection ring 41 and the second connection ring 43 are respectively provided with a plurality of the mounting holes 421, the connection screws 44 are connected with the mounting holes 421 corresponding to the adjacent first connection ring 41 and the adjacent universal joint ring 42, and the connection screws 44 are further connected with the mounting holes 421 corresponding to the adjacent universal joint ring 42 and the adjacent second connection ring 43. The first connection ring 41 and the second connection ring 43 are movably connected to the gimbal ring 42 by connection screws 44 and mounting holes 421.
Taking a universal joint ring shown in fig. 12 as an example, a connection mode of the universal joint assembly 4 is described, where the universal joint assembly 4 includes a first connection ring 41, a first universal joint ring 42, a second universal joint ring 42, and a second connection ring 43, which are sequentially arranged, and each of the first connection ring 41, the universal joint ring 42, and the second connection ring 43 is provided with 6 mounting holes 421, which are sequentially arranged in a clockwise direction A, B, C, D, E, F. The division of the first gimbal ring 42, the second gimbal ring 42, and the mounting hole 421 of A, B, C, D, E, F is only for convenience of describing the connection manner of the gimbal ring 42, and is not the division of the gimbal ring 42 and the mounting hole 421 with different structures. Specifically, the first connection ring 41 and the first gimbal ring 42 are connected through the A, C, E mounting hole 421, the first gimbal ring 42 and the second gimbal ring 42 are connected through the B, D, F mounting hole 421, and the second gimbal ring 42 and the second connection ring 43 are connected through the A, C, E mounting hole 421. By the above-mentioned alternate connection, the movement between the first connection ring 41 and the first gimbal ring 42, between the first gimbal ring 42 and the second gimbal ring 42, and between the second gimbal ring 42 and the second connection ring 43 is more flexible, and the movement space for the relative deflection movement is larger, so that the adjustable angle range of the gimbal assembly 4 can be increased.
Referring to fig. 8 and 9, fig. 8 is a cross-sectional view of a gimbal ring according to an embodiment of the present disclosure, and fig. 9 is a schematic structural diagram of a connection screw according to an embodiment of the present disclosure.
In one implementation, the mounting hole 421 includes a first through hole 4211 and a second through hole 4212, the first through hole 4211 is coaxially communicated with the second through hole 4212, a radial cross-sectional area of the first through hole 4211 is larger than a radial cross-sectional area of the second through hole 4212, the connection screw 44 includes a first screw head 441, a screw rod 442, and a second screw head 443, the first screw head 441 and the second screw head 443 are respectively disposed on both sides of the screw rod 442, and the first screw head 441 and the second screw head 443 are respectively disposed in the first through hole 4211 corresponding to two adjacent gimbal rings 42;
referring to fig. 10, the radial cross-sectional areas of the first screw head 441 and the second screw head 443 are both larger than the radial cross-sectional area of the second through hole 4212 and both smaller than the radial cross-sectional area of the first through hole 4211; the radial cross-sectional area of the screw 442 is smaller than the radial cross-sectional area of the second through hole 4212. This prevents the connection screw 44 from coming off, and improves the stability of the connection of the gimbal ring 42. And a gap is formed between the first through hole 4211 and the first screw head 441 and between the first through hole 4211 and the second screw head 443, increasing the movable space of the first screw head 441 and the second screw head 443, thereby further improving the flexibility of the deflecting motion and the deflectable angular range of the gimbal ring 42.
However, the angle over which two adjacent gimbal rings 42 can be deflected is limited. Therefore, according to the actual use requirement, the number of the joint rings 42 can be increased to accumulate a plurality of deflectable angles, thereby increasing the range of the adjustable angle of the joint assembly 4. For example, two adjacent gimbal rings 42 can realize one by a deflecting motionbThe bending of the angle. When the gimbal assembly 4 is provided with four gimbal rings 42, the gimbal assembly 4 may realize 3bAdjustment within the angular range, when the gimbal assembly 4 is provided with six gimbal rings 42, the gimbal assembly 4 may realize 5bAdjustment over an angular range, it can be seen that the greater the angular range over which the gimbal assembly 4 can be adjusted as the number of gimbal rings 42 increases.
In addition, the first connection ring 41 in the gimbal assembly 4 has the function of connecting the gimbal ring 42 and the shock absorber 3, and one side of the first connection ring 41 can be connected with the gimbal ring 42 in a movable connection manner, so that the gimbal ring 42 can realize a certain angle of deflection motion relative to the first connection ring 41, and the angle range in which the gimbal assembly 4 can deflect can be further increased. The other side of the first connection ring 41 is connected with the cushion damper 3, and the connection position of the first connection ring 41 and the cushion damper 3 is set to have different structures according to different connection modes. For example, when the screw connection is adopted, the connection portion of the first connection ring 41 is provided with a screw structure which is screw-engaged with the cushion damper 3. The present application does not specifically limit the structure of the connection between the first connection ring 41 and the cushion damper 3.
The secondary connecting ring 43 in the joint assembly 4 has the function of connecting the joint ring 42 and the joint box assembly 5, and one side of the secondary connecting ring 43 can be movably connected with the joint ring 42, so that the joint ring 42 can realize a certain angle of deflection movement relative to the secondary connecting ring 43, and the angle range in which the joint assembly 4 can deflect can be further increased. The structure of the junction of the second connection ring 43 and the joint box assembly 5 is similar to that of the junction of the first connection ring 41 and the cushion damper 3, and the detailed description thereof is omitted.
In one implementation, the gimbal assembly 4 further includes a protective sleeve 45, and the protective sleeve 45 is sleeved on the gimbal ring 42. The protective sleeve 45 is made of flexible materials such as rubber and tightly wraps the outer portions of the universal joint rings 42, so that sundries such as sand, dust and the like on the seabed can be effectively prevented from entering the joint of the two universal joint rings 42, and deflection movement of the universal joint rings 42 is influenced. Meanwhile, seawater can be prevented from entering the joint of the universal joint ring 42, and the sealing performance of the universal joint component 4 is improved.
Referring to fig. 13, in an implementation manner, the submarine optical cable branching device further includes a hoisting member 7, and the hoisting member 7 is sleeved on the splice box assembly 5. In the process of laying construction of the submarine optical cable branch equipment, the submarine optical cable branch equipment is generally required to be moved to a specified installation position by using hoisting mechanical equipment, in order to not damage the structures of the splitter body 1 and the branch unit 2 in the hoisting movement process, and the hoisting convenience is improved, in the embodiment, the hoisting component 7 is sleeved on the joint box assembly 5, and the joint box assembly 5 is connected with the splitter body 1, so that the hoisting component 7 is arranged at a position close to the splitter body 1, the integral tensile force borne by the submarine optical cable branch equipment in the hoisting process can be more uniform, and the situation that the submarine optical cable branch equipment is damaged due to uneven stress is prevented from occurring.
Specifically, the hoisting member 7 may be configured to include, but is not limited to, a rectangular structure, a circular structure, a rectangular structure, and the like. As shown in fig. 13, in this embodiment, taking the hoisting member 7 as a diamond structure as an example, the diamond structure occupies a small space, so that the hoisting member 7 is more convenient to install. According to the limitation of installation conditions such as the size of the hoisting member 7 and the included angle between two adjacent branch units 2, the hoisting member 7 may be installed on any one or more branch units 2, which is not specifically limited in this application.
In one implementation manner, a plurality of hoisting holes 71 are formed in the hoisting member 7, the hoisting holes 71 are oppositely arranged with the central axis of the splice closure assembly 5 as a symmetry axis, and a connection line of at least one group of the oppositely arranged hoisting holes 71 is perpendicular to a plane defined by at least two of the branch units 2.
In this embodiment, two hoisting holes 71 are provided on the hoisting component 7, the two hoisting holes 71 are respectively provided on two sides of an intersection line of the plane of the splice box assembly 5 and the hoisting component 7, and the hoisting device can hoist the submarine optical cable branch equipment from the front and back directions during hoisting. According to actual use requirements, a plurality of hoisting holes 71 at different positions can be further formed in the hoisting part 7, so that the hoisting equipment can hoist the submarine optical cable branch equipment from multiple directions and at multiple angles to adapt to different submarine terrains and improve the flexibility of laying construction of the submarine optical cable branch equipment.
In a second aspect, the present application provides an undersea optical cable system, including a plurality of submarine cable lines and a plurality of station devices, where each submarine cable line is connected to one station device, and each submarine cable line is provided with an undersea optical cable branch device as described in the first aspect; each submarine cable line is connected with an adjacent submarine cable line through the submarine optical cable branch equipment so as to realize signal transmission between the station equipment corresponding to the submarine cable line and the station equipment corresponding to the adjacent submarine cable line, wherein the adjacent submarine cable line is a submarine cable line having a communication relationship with each submarine cable line.
In this embodiment, the submarine optical cable system includes a plurality of submarine cable lines, each submarine cable line is connected to an adjacent submarine cable line through the submarine optical cable branching device according to the first aspect, and a branching unit of the submarine optical cable branching device can flexibly adjust an angle to adapt to a complex submarine topography, so that the submarine optical cable system is more flexible and diverse in layout, and submarine cable laying construction is more convenient and efficient.
The application provides an optical fiber submarine cable branching device and an optical fiber submarine cable system, wherein the branching device comprises a splitter body 1 and at least three branching units 2 connected with the splitter body 1; at least one of the branching units 2 comprises a cushion damper 3, a gimbal assembly 4, and a joint box assembly 5; the buffer damper 3 is connected with the joint box assembly 5 through the universal joint assembly 4; one side of the joint box assembly 5 is connected with the universal joint assembly 4, and the other side of the joint box assembly 5 is connected with the splitter body 1; the joint assembly 4 includes a first connection ring 41, a plurality of joint rings 42, and a second connection ring 43, one side of the first connection ring 41 is connected to the joint ring 42, the other side of the first connection ring 41 is connected to the shock absorber 3, one side of the second connection ring 43 is connected to the joint ring 42, the other side of the second connection ring 43 is connected to the joint box assembly 5, and two adjacent joint rings 42 are movably connected. Through the angle of adjustment universal joint subassembly, can change the position of buffering bumper shock absorber for connecting the box subassembly to reach the purpose of adjustment branching unit for the angle of spliter body. And, through the angle of the universal joint subassembly of two adjacent branching units of adjustment, can change the contained angle of two adjacent branching units, the flexibility of branching unit angle adjustment is higher. The submarine optical cable system formed by connecting submarine cable lines by using the submarine optical cable branch equipment can adapt to complex submarine topography and improve the laying operation efficiency of the submarine optical cable system by adjusting the angle of the branch unit.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (9)
1. An undersea optical fiber cable breakout device, comprising: a splitter body (1) and at least three branching units (2) connected to the splitter body (1);
at least one of the branching units (2) comprises a buffer damper (3), a universal joint assembly (4) and a joint box assembly (5);
the buffer shock absorber (3) is connected with the joint box assembly (5) through the universal joint assembly (4);
one side of the joint box assembly (5) is connected with the universal joint assembly (4), and the other side of the joint box assembly (5) is connected with the splitter body (1);
the universal joint assembly (4) comprises a first connecting ring (41), a plurality of universal joint rings (42) and a second connecting ring (43), one side of the first connecting ring (41) is connected with the universal joint rings (42), the other side of the first connecting ring (41) is connected with the buffer shock absorber (3), one side of the second connecting ring (43) is connected with the universal joint rings (42), the other side of the second connecting ring (43) is connected with the joint box assembly (5), and two adjacent universal joint rings (42) are movably connected;
the gimbal assembly (4) further comprises a connection screw (44); the universal joint rings (42) are provided with mounting holes (421), and the connecting screws (44) are connected with the corresponding mounting holes (421) of the two adjacent universal joint rings (42);
the mounting hole (421) comprises a first through hole (4211) and a second through hole (4212), the first through hole (4211) is coaxially communicated with the second through hole (4212), and the radial cross-sectional area of the first through hole (4211) is larger than that of the second through hole (4212);
the connecting screw (44) comprises a first screw head (441), a screw rod (442) and a second screw head (443), the first screw head (441) and the second screw head (443) are respectively arranged at two sides of the screw rod (442), and the first screw head (441) and the second screw head (443) are respectively arranged in the first through hole (4211) corresponding to two adjacent gimbal rings (42);
-the radial cross-sectional area of the first screw head (441) and the radial cross-sectional area of the second screw head (443) are both larger than the radial cross-sectional area of the second through hole (4212) and both smaller than the radial cross-sectional area of the first through hole (4211); the radial cross-sectional area of the screw (442) is smaller than the radial cross-sectional area of the second through hole (4212).
2. Submarine optical cable branching device according to claim 1, wherein the gimbal ring (42) has a circular ring-shaped cross-section, and wherein a plurality of mounting holes (421) are uniformly provided in the circumferential direction of the radial cross-section of the gimbal ring (42).
3. Submarine optical cable branching apparatus according to claim 1, wherein the gimbal assembly (4) further comprises a protective sleeve (45), the protective sleeve (45) fitting over the gimbal ring (42).
4. Submarine optical cable breakout arrangement according to any of claims 1 to 3, wherein the splice enclosure assembly (5) comprises a submarine cable splice enclosure (51) and a connection rod (52);
one side of the submarine cable joint box (51) is connected with the second connecting ring (43), the other side of the submarine cable joint box (51) is connected with one end of the connecting rod (52), and the other end of the connecting rod (52) is connected with the splitter body (1).
5. Submarine optical cable branching device according to claim 4, wherein a fiber containing unit (6) is provided inside the splitter body (1), the branching unit (2) being connected to the fiber containing unit (6) by the connecting rod (52).
6. Submarine optical cable branching device according to claim 5, wherein an insulating assembly (61) is provided on the fiber containing unit (6), wherein the branching unit (2) comprises at least two first branching units (21), wherein the first branching units (21) are connected to an outgoing submarine cable, and wherein at least one first branching unit (21) is connected to the insulating assembly (61) by means of the connecting rod (52).
7. Submarine optical cable branching device according to claim 1, further comprising a lifting member (7), the lifting member (7) fitting over the splice enclosure assembly (5).
8. Submarine optical cable branching device according to claim 7, wherein a plurality of lifting holes (71) are provided in the lifting member (7), wherein the lifting holes (71) are arranged opposite to each other with respect to the central axis of the splice enclosure assembly (5) as an axis of symmetry, and wherein the line connecting at least one set of lifting holes (71) arranged opposite to each other is perpendicular to the plane defined by at least two branching units (2).
9. An undersea optical fiber cable system comprising a plurality of submarine cable lines and a plurality of site equipments, wherein each submarine cable line is connected to one site equipment, and each submarine cable line is provided with an undersea optical fiber cable breakout equipment according to any one of claims 1 to 8; each submarine cable line is connected with an adjacent submarine cable line through the submarine optical cable branch equipment so as to realize signal transmission between the station equipment corresponding to the submarine cable line and the station equipment corresponding to the adjacent submarine cable line, wherein the adjacent submarine cable line is a submarine cable line having a communication relationship with each submarine cable line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877798.8A CN113311554B (en) | 2021-08-02 | 2021-08-02 | Submarine optical cable branch equipment and submarine optical cable system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110877798.8A CN113311554B (en) | 2021-08-02 | 2021-08-02 | Submarine optical cable branch equipment and submarine optical cable system |
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| CN113311554A CN113311554A (en) | 2021-08-27 |
| CN113311554B true CN113311554B (en) | 2021-11-26 |
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| CN202110877798.8A Active CN113311554B (en) | 2021-08-02 | 2021-08-02 | Submarine optical cable branch equipment and submarine optical cable system |
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| 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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| CN113311554A (en) | 2021-08-27 |
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