A compact branch for connecting a submarine cable to a surveying device

Abstract

The utility model discloses a compact brancher suitable for the connection of submarine cable and detection device, comprising: two submarine cable end connector branches, a detection device connector branch and a brancher connector box, two submarine cable end connector branches are mainly used for connecting submarine cable and splicing with the brancher connector box, need to bear the breaking force of 90% of the breaking strength of submarine cable. A detection device connector branch is mainly used for connecting detection device and splicing with the brancher connector box, need to bear the breaking force of 90% of the breaking strength of detection device. The brancher connector box is mainly used for connecting submarine cable end connector and detection device connector, and completes optical fusion, fiber winding and optical device storage.

Description

Technical Field

[0001] This utility model relates to the field of submarine optical cable equipment connection technology, and in particular to a compact brancher suitable for connecting submarine cables and detection devices. Background Technology

[0002] During the deployment of submarine detection systems, multiple detection devices are typically installed in different directions to expand the detection area and improve the system's economic efficiency. Multi-core submarine cables are usually chosen, but laying too many cables to connect detection equipment not only reduces cable utilization but also hinders the overall planning of the equipment layout. Using a splitter can effectively avoid these problems. However, conventional splitters cannot simultaneously accommodate direct connections between submarine cables and detection devices. Therefore, a new type of splitter is urgently needed that can simultaneously connect submarine cables to each other and directly connect detection devices to the main submarine cable. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, this utility model can directly connect to the main submarine cable while ensuring that the detection device can be arranged in multiple directions.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a compact splitter suitable for connecting submarine cables and detection devices, comprising:

[0007] It consists of two submarine cable end connector branches, one detection device connector branch, and one splitter connector box. The two submarine cable end connector branches are used to connect the submarine cable and splice it with the splitter connector box. The detection device connector branch is used to connect the detection device and splice it with the splitter connector box.

[0008] The branch connector box is used to connect the submarine cable end connector and the detection device connector, and to complete optical splicing, fiber coiling and fiber storage.

[0009] As a preferred embodiment, the submarine cable end connector branch is a modular design, comprising a bending-resistant structural assembly and an integrated structural assembly.

[0010] As a preferred embodiment, the bending structure assembly includes five metal bending joints, one metal bending joint adapter, and one vulcanized bending device. The metal bending joints and the metal bending joint adapter are both upper and lower parts that are locked together by screws and can be disassembled at will. The main body of the vulcanized bending device is a metal part.

[0011] As a preferred embodiment, the integrated structure assembly consists of a sealing connector, a fastening nut, a pressure-bearing shell, a heat-shrinkable sealing connector, a submarine cable joint, a round nut, and a sealing support.

[0012] The heat-shrinkable sealing connector is an adapter with a fastening nut installed on its top for connecting a submarine cable connector. The inner side of the fastening nut is a smooth surface and the outer side is a threaded surface, which can install the submarine cable connector and lock the heat-shrinkable sealing connector.

[0013] The pressure-bearing shell is threaded onto the heat-shrinkable sealing connector, and has a groove at the tail for installing the anti-bending structure assembly. The pressure-bearing shell has an internal cavity for bending the submarine cable wire, installing the heat-shrinkable sealing connector and the heat-shrinkable tube. The heat-shrinkable sealing connector is used for installing the seal, and has an internal cavity for installing the seal.

[0014] As a preferred embodiment, the submarine cable joint has an internal cavity for bending the submarine cable wires, injecting adhesive, and installing sealing support components. The surface of the submarine cable joint is also provided with threads for installing a round nut, which is a fastener used for subsequent fastening and installation of structural components.

[0015] As a preferred embodiment, the sealing support includes an insulating insulating component, a force-sharing cone, a steel pipe seal, a cable core steel pipe seal, and cable core fasteners.

[0016] The insulating isolator is used to insulate and isolate the metal parts and the submarine cable wires, preventing static electricity from damaging the internal components of the brancher; the force cone is a structural component with a flared opening, which can accommodate the bent submarine cable wires; the steel pipe seal is a base that passes through the submarine cable steel pipe and supports the insulating isolator, with a cavity in the middle to facilitate the installation of the cable core steel pipe seal; the cable core steel pipe seal passes through the submarine cable steel pipe and is squeezed into the steel pipe seal by the cable core fasteners;

[0017] The cable core fastener includes a threaded cap and a locking nut. The outer surface of the threaded cap is threaded so that it can be installed in the cavity of the cable core steel tube seal. The outer surface of the locking nut is threaded and passes through the steel tube and is installed inside the threaded cap, while simultaneously squeezing the cable core steel tube seal.

[0018] As a preferred embodiment, the probe connector branch includes a branch structure and a probe anti-bending joint. The branch structure has two interfaces: a probe interface and a submarine cable interface. The probe interface has a connecting flange inside, which is connected to the probe by screws. The connecting flange has threaded holes and is fastened to the probe by screws. The probe anti-bending joint is installed on the connecting flange through the probe interface structure, which can limit the bending of the probe near the branch.

[0019] As a preferred embodiment, the splitter junction box consists of a submarine cable interface flange, a detection device interface flange, a waist-shaped sealing cylinder, and a fiber optic coil.

[0020] The branch connector box is fitted with a waist-shaped sealing cylinder on the outside and connected to the fiber optic plate. The waist-shaped sealing cylinder is a sealing structure component, whose main functions are sealing and bearing external environmental loads.

[0021] The fiber optic plate consists of two metal structural components that open and close from top to bottom and are fixed with screws. Both ends are integrated and connected by a HALE structure, and there is a storage area inside for fiber optic welding.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, this utility model provides a compact splitter suitable for connecting submarine cables and detection devices, which has the following advantages:

[0024] I. This utility model improves upon traditional splitters by directly integrating the detection device onto the splitter, reducing the use of submarine cables and other connectors, thereby increasing the utilization rate of submarine cables and splitters and increasing economic benefits to a certain extent.

[0025] Second, this utility model uses structural components made of various high-strength stainless steel materials for assembly and combination, which can adapt to the integration of different types of submarine cables and detection devices, and has a certain degree of modular integration function, effectively improving the utilization rate of structural components.

[0026] Third, the internal sealing of this utility model adopts a combination of mechanical and potting methods. Under this sealing method, the branch device can work for a long time in the deep sea environment and has high working stability. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the branch of the submarine cable end connector of this utility model;

[0029] Figure 3 This is a schematic diagram of the submarine cable bending resistance structure assembly of this utility model;

[0030] Figure 4 This is a cross-sectional view of the submarine cable knot structure assembly of this utility model;

[0031] Figure 5 This is a schematic diagram of the submarine cable knot structure assembly of this utility model;

[0032] Figure 6 This is a schematic diagram of the cable core fastener of this utility model;

[0033] Figure 7 This is a schematic diagram of the connector of the detection device of this utility model;

[0034] Figure 8 This is a cross-sectional view of the connector of the detection device of this utility model;

[0035] Figure 9 This is a schematic diagram of the branch connector box of this utility model;

[0036] Figure 10 This is a cross-sectional view of the branch connector box of this utility model;

[0037] Figure 11 This is a schematic diagram of the fiberboard of this utility model.

[0038] In the diagram: 1. Submarine cable end connector branch; 2. Detection device connector branch; 3. Brancher connector box; 4. Bending resistance structure assembly; 5. Integrated structure assembly; 6. Vulcanized bending resist; 7. Metal bending joint adapter; 8. Metal bending joint; 9. Sealing connector; 10. Fastening nut; 11. Pressure-bearing shell; 12. Heat-shrink sealing connector; 13. Submarine cable joint; 14. Round nut; 15. Insulating isolation component; 16. Force-shaping cone; 17. Steel pipe 18. Sealing components; 19. Cable core steel pipe sealing components; 20. Cable core fasteners; 21. Threaded glands; 22. Lock nuts; 23. Branch structures; 24. Detection device interfaces; 25. Connecting flanges; 26. Detection device interface structural components; 27. Detection device bending joints; 28. Waist-shaped sealing cylinders; 29. ​​Submarine cable interface flanges; 30. Detection device interface flanges; 31. Fiberboard coils; 32. Haver structures; 33. Threaded holes; 34. Storage areas. Detailed Implementation

[0039] To better understand the purpose, structure, and function of this utility model, the following will further describe a compact branching device suitable for connecting submarine cables and detection devices, in conjunction with the accompanying drawings and specific embodiments.

[0040] refer to Figure 1-11 This utility model discloses a compact splitter suitable for connecting submarine cables and detection devices, comprising:

[0041] It consists of two submarine cable end connector branches 1, one detection device connector branch 2, and one splitter connector box 3. The two submarine cable end connector branches 1 are used to connect the submarine cable and splice with the splitter connector box 3. The detection device connector branch 2 is used to connect the detection device and splice with the splitter connector box 3.

[0042] The splitter junction box 3 is used to connect the submarine cable end connector and the detection device connector, and to complete optical splicing, fiber coiling and fiber storage.

[0043] This invention improves upon traditional splitters by directly integrating the detection device onto the splitter, reducing the use of submarine cables and other connectors, thereby increasing the utilization rate of submarine cables and splitters and increasing economic benefits to a certain extent.

[0044] Specifically, the submarine cable connector branch 1 of this utility model is a complex structure composed of multiple parts. Based on functional characteristics, the parts are mainly divided into two categories: the anti-bending structure assembly 4 and the integrated structure assembly 5. Its advantage lies in its modular design, enabling rapid part replacement. The anti-bending structure assembly 4 includes five metal anti-bending joints 8, one metal anti-bending joint adapter 7, and one vulcanizing anti-bending device 6. The metal anti-bending joints 8 and the metal anti-bending joint adapter 7 are both upper and lower parts locked together by screws and can be easily disassembled. The vulcanizing anti-bending device 6 is mainly a metal part, and vulcanization is performed on the surface of the part to compensate for the excessive weight of the metal anti-bending joints.

[0045] More specifically, the integrated structural assembly 5 consists of a sealing connector 9, a fastening nut 10, a pressure-bearing shell 11, a heat-shrinkable sealing connector 12, a submarine cable connector 13, a round nut 14, and a sealing support. All metal structural components are made of high-strength stainless steel, and the connector has good structural stability, effectively withstanding high-intensity, high-frequency, and continuous loads. The heat-shrinkable sealing connector 12 is an adapter, with a fastening nut 10 installed on its top for connecting the submarine cable connector 13. The inner side of the fastening nut 10 is smooth, and the outer side is threaded, allowing the submarine cable connector 13 to be installed and the heat-shrinkable sealing connector 12 to be locked. Its pressure-bearing shell 11 is threaded onto the heat-shrinkable sealing connector 12, and has a groove at the tail for installing the bending-resistant structural assembly 4. The pressure-bearing shell 11 has an internal cavity for bending the submarine cable wires, installing the heat-shrinkable sealing connector 12, and installing the heat-shrinkable tubing. The heat-shrinkable sealing connector 12 is used for installing the seal, and it also has an internal cavity for installing the seal.

[0046] Furthermore, the submarine cable connector 13 of this utility model has an internal cavity for bending the submarine cable wires, applying adhesive, and installing sealing support components. The surface of the submarine cable connector 13 is also threaded for installing a round nut 14, which is a fastener used for subsequent fastening of structural components. Its sealing support components include an insulating isolation component 15, a force-shaping cone 16, a steel pipe seal 17, a cable core steel pipe seal 18, and a cable core fastener 19.

[0047] The insulating isolator 15 is used to insulate and isolate the metal parts and the submarine cable wires to prevent static electricity from damaging the internal components of the brancher; the force cone 16 is a structural component with a flared mouth, which can accommodate the bent submarine cable wires; the steel pipe seal 17 is a base that passes through the submarine cable steel pipe and supports the insulating isolator 15, with a cavity in the middle to facilitate the installation of the cable core steel pipe seal 18; the cable core steel pipe seal 18 passes through the submarine cable steel pipe and is squeezed into the steel pipe seal 17 by the cable core fastener 19;

[0048] The cable core fastener 19 includes a threaded gland 20 and a locking nut 21. The outer surface of the threaded gland 20 is threaded so that it can be installed in the cavity of the cable core steel pipe seal 18. The outer surface of the locking nut 21 is threaded, penetrates the steel pipe and is installed inside the threaded gland 20, while squeezing the cable core steel pipe seal 18.

[0049] This utility model uses structural components made of various high-strength stainless steel materials for assembly and combination, which can adapt to the integration of different types of submarine cables and detection devices, and has a certain degree of modular integration function, effectively improving the utilization rate of structural components.

[0050] Specifically, the detection device connector branch of this utility model includes a branch structure 22 and a detection device anti-bending joint 26. The branch structure has two interfaces, namely a detection device interface 23 and a submarine cable interface. The detection device interface 23 has a connecting flange 24 inside, which is connected to the detection device by screws. The connecting flange 24 has a threaded hole 32, which is fastened to the detection device by screws. The detection device anti-bending joint 26 is installed on the connecting flange 24 through the detection device interface structure 25, which can limit the bending of the detection device near the branch.

[0051] Furthermore, the branch connector box 3 of this utility model is composed of a submarine cable interface flange 28, a detection device interface flange 29, a waist-shaped sealing cylinder 27, and a fiber optic plate 30.

[0052] A waist-shaped sealing cylinder 27 is installed on the outside of the branch connector box 3 and connected to the fiber optic plate 30. The waist-shaped sealing cylinder 27 is a sealing structure component, whose main functions are sealing and bearing external environmental loads.

[0053] The fiber optic plate 30 consists of two metal structural components that open and close from top to bottom and are fixed with screws. Both ends are connected by a HAFF structure 31, and the interior has a storage area 33 for fiber optic welding.

[0054] The two submarine cable end connector branches of this invention are mainly used to connect the submarine cable and splice it with the splitter connector box, and must withstand 90% of the breaking strength of the submarine cable. One detection device connector branch is mainly used to connect the detection device and splice it with the splitter connector box, and must withstand 90% of the breaking strength of the detection device. The splitter connector box is mainly used to connect the submarine cable end connectors and the detection device connectors, and to complete optical splicing, fiber coiling, and optical component storage. This invention also employs a mechanical + potting combination for internal sealing. This sealing method allows the splitter to operate for extended periods in deep-sea environments, exhibiting high operational stability.

[0055] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A compact splitter suitable for connecting submarine cables and detection devices, characterized in that, include: It consists of two submarine cable end connector branches (1), one detection device connector branch (2) and one splitter connector box (3). The two submarine cable end connector branches (1) are used to connect the submarine cable and splice it with the splitter connector box (3). The detection device connector branch (2) is used to connect the detection device and splice it with the splitter connector box (3). The branch connector box (3) is used to connect the submarine cable end connector and the detection device connector, and to complete optical splicing, fiber coiling and fiber storage.

2. A compact splitter for connecting submarine cables and detection devices according to claim 1, characterized in that, The submarine cable end connector branch (1) is a modular design, consisting of a bending-resistant structural assembly (4) and an integrated structural assembly (5).

3. A compact splitter for connecting submarine cables and detection devices according to claim 2, characterized in that, The bending structure assembly (4) includes five metal bending joints (8), one metal bending joint adapter (7), and one vulcanized bending device (6). The metal bending joints (8) and the metal bending joint adapter (7) are two upper and lower parts that are locked together by screws and can be disassembled at will. The vulcanized bending device (6) is mainly made of metal parts.

4. A compact splitter for connecting submarine cables and detection devices according to claim 2, characterized in that... The integrated structure assembly (5) consists of a sealing connector (9), a fastening nut (10), a pressure-bearing shell (11), a heat-shrinkable sealing connector (12), a submarine cable connector (13), a round nut (14), and a sealing support. The heat shrink sealing connector (12) is an adapter, and a fastening nut (10) is installed on its top for connecting the submarine cable connector (13). The inner side of the fastening nut (10) is a smooth surface, and the outer side is a threaded surface, which can install the submarine cable connector (13) and lock the heat shrink sealing connector (12). The pressure-bearing shell (11) is threaded onto the heat-shrinkable sealing connector (12), and has a groove at the tail for installing the anti-bending structure assembly (4). The pressure-bearing shell (11) has a cavity inside for bending the submarine cable wire, installing the heat-shrinkable sealing connector (12) and the heat-shrinkable tube. The heat-shrinkable sealing connector (12) is used for installing the seal, and has a cavity inside for installing the seal.

5. A compact splitter for connecting submarine cables and detection devices according to claim 4, characterized in that... The submarine cable connector (13) has a cavity inside for bending submarine cable wires, injecting glue and installing sealing support components. The surface of the submarine cable connector (13) is also provided with threads for installing a round nut (14). The round nut (14) is a fastener for subsequent structural component fastening installation.

6. A compact splitter for connecting submarine cables and detection devices according to claim 5, characterized in that... The sealing support includes an insulating isolation component (15), a force-contributing cone (16), a steel pipe seal (17), a cable core steel pipe seal (18), and a cable core fastener (19). The insulating isolator (15) is used to insulate and isolate the metal parts and the submarine cable wires to prevent static electricity from damaging the internal components of the brancher; the force cone (16) is a structural component with a flared mouth, which can accommodate the bent submarine cable wires; the steel pipe seal (17) is a base that is inserted into the submarine cable steel pipe and supports the insulating isolator (15), with a cavity in the middle to facilitate the installation of the cable core steel pipe seal (18); the cable core steel pipe seal (18) is inserted into the submarine cable steel pipe and squeezed into the steel pipe seal (17) by the cable core fastener (19); The cable core fastener (19) includes a threaded cap (20) and a locking nut (21). The outer surface of the threaded cap (20) is threaded so that it can be installed in the cavity of the cable core steel pipe seal (18). The outer surface of the locking nut (21) is threaded, penetrates the steel pipe and is installed inside the threaded cap (20), while squeezing the cable core steel pipe seal (18).

7. A compact splitter for connecting submarine cables and detection devices according to claim 1, characterized in that... The probe connector branch includes a branch structure (22) and a probe bending joint (26). The branch structure has two interfaces, namely a probe interface (23) and a submarine cable interface. The probe interface (23) has a connecting flange (24) that is connected to the probe by screws. The connecting flange (24) has a threaded hole (32) and is connected to the probe by screws. The probe bending joint (26) is installed on the connecting flange (24) through the probe interface structure (25) and can limit the bending of the probe near the branch.

8. A compact splitter for connecting submarine cables and detection devices according to claim 1, characterized in that... The branch connector box (3) consists of a submarine cable interface flange (28), a detection device interface flange (29), a waist-shaped sealing cylinder (27), and a fiber optic plate (30); The branch connector box (3) is fitted with a waist-shaped sealing cylinder (27) on the outside and connected to the fiber optic plate (30). The waist-shaped sealing cylinder (27) is a sealing structure and its main function is to seal and withstand external environmental loads. The fiber optic plate (30) consists of two metal structural components that open and close at the top and bottom and are fixed with screws. Both ends are connected by a HAFF structure (31), and there is a storage area (33) inside for fiber optic welding.

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