A hook-shaped skeleton armored optical cable for deep-sea exploration
The optical cable, with its hook-shaped skeleton structure and multi-layer armor design, solves the problems of insufficient resistance to torsion and lateral pressure in submarine optical cables, achieving stable transmission and accurate detection, and is suitable for deep-sea environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WANG ON GRP LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-30
AI Technical Summary
Existing optical cables are insufficient in resisting torsion and lateral pressure in the seabed environment, have poor protective performance, cannot effectively detect the length and depth of the cable laying, and are difficult to construct and maintain.
The cable adopts a hook-shaped skeleton structure, including steel strands, hook-shaped skeleton filler, water-blocking tape, and outer sheath design. Combined with detection sensors, it enhances the optical cable's resistance to torsion and lateral pressure, and improves its protective performance through a multi-layer armor structure.
It enables stable transmission of optical cables in complex underwater environments, enhances resistance to torsion and lateral pressure, extends service life, and has precise depth detection capabilities, thereby reducing production costs.
Smart Images
Figure CN224436646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical fiber and cable technology, and in particular to an armored optical cable for deep-sea exploration with a hook-shaped skeleton. Background Technology
[0002] In submarine network environments, communication and sensing optical cables are required, which must withstand significant torsional tension and lateral pressure during use on the seabed to provide stable transmission. Conventional methods necessitate laying separate communication, sensing, and power cables, creating numerous cables that not only complicate construction, use, and maintenance but also result in considerable waste. Existing skeleton-type optical cables typically use HDPE material, which is rigid but lacks elasticity. Under impact, its resistance to torsion and lateral pressure is poor, leading to torsional and compressive deformation of the sheath and ultimately damage to the optical fibers.
[0003] For example, in the prior art, a composite control cable for mining conveying machinery, disclosed in CN209543975U, includes a cable core comprising a circular rubber skeleton, a support skeleton, a sickle-shaped skeleton, a first core, and a second core. Support skeletons perpendicular to the circular rubber skeleton are fixedly connected to the outer perimeter of the circular rubber skeleton. The other end of each support skeleton is fixedly connected to the middle position of four sickle-shaped skeletons. A first core is located inside the circular rubber skeleton, comprising a first conductor and, sequentially, a low-smoke halogen-free polyolefin insulation layer, an aluminum foil shielding layer, and a phosphated steel wire winding layer wrapped around the first conductor. A second core is located on the left and right sides of the support skeleton inside each sickle-shaped skeleton. This cable structure has gaps between the two sickle-shaped skeletons, resulting in poor compressive strength at the gaps. Utility Model Content
[0004] Therefore, the technical problem to be solved by this utility model is to overcome the problems in the prior art such as insufficient resistance to torsional tension and lateral pressure, poor protective performance, and inability to detect optical cables during installation, splicing, and communication.
[0005] To solve the above-mentioned technical problems, this utility model provides a hook-shaped skeleton armored optical cable for deep-sea exploration, comprising: a steel strand, which is disposed at the center of the optical cable; a hook-shaped skeleton filler, which is sleeved on the outside of the steel strand, wherein a second water-blocking strip with an annular cross-section is provided between the inner layer of the hook-shaped skeleton filler and the outer layer of the steel strand, the hook-shaped skeleton filler is provided with a plurality of annular cavities and a plurality of hooks, wherein optical fibers are disposed in the annular cavities and hooks, and a first phosphated steel wire and water-blocking yarn are disposed between the plurality of hooks; a third water-blocking strip, which is wrapped around the outside of the hook-shaped skeleton filler; and an outer sheath, which is sleeved on the outside of the third water-blocking strip, wherein a plurality of second phosphated steel wires are disposed between the inner layer of the outer sheath and the outer layer of the third water-blocking strip. This utility model presents a hook-shaped skeleton armored optical cable for deep-sea exploration. The skeleton has excellent elasticity and toughness, which can effectively improve the compression and torsion resistance of the skeleton cable and reduce production costs. It effectively solves the problems of poor protection performance, insufficient torsion and compression resistance, inability to detect and difficult identification of traditional armored optical cables. The inner sheath is also designed with a steel wire armor structure on the outside. The central reinforcement adopts a steel strand structure to increase tensile strength. The cable core is made of armored sheath stranded together. The armored steel wire is used for protection and torsion and lateral pressure resistance. The outer sheath uses color stripes for easy identification. At the same time, a depth detection sensor is added to detect the length and depth of the optical cable. On the one hand, it can effectively solve the problem of insufficient torsion and lateral pressure resistance, and on the other hand, it can achieve the purpose of detection.
[0006] In one embodiment of this utility model, the optical fiber is wrapped with a loose tube, and the loose tube is wrapped with a first water-blocking tape.
[0007] In one embodiment of this utility model, a colored strip is provided on the outer wall of the outer sheath.
[0008] In one embodiment of this invention, a detection sensor is nested within the outer sheath. The use of an external detection sensor is primarily to effectively improve the detection capabilities of the optical cable.
[0009] In one embodiment of this utility model, a ring of third phosphated steel wires is arranged in a circular array on the outside of the first water-blocking strip.
[0010] In one embodiment of the present invention, the second phosphated steel wire is provided as a plurality of wires, and the plurality of second phosphated steel wires are arranged in a ring array, with the plurality of second phosphated steel wires forming a ring.
[0011] In one embodiment of this utility model, a tear rope is provided between the inner layer of the second phosphated steel wire and the outer layer of the third water-blocking strip.
[0012] In one embodiment of this utility model, the plurality of annular cavities are arranged in a ring array on the hook-shaped skeleton filler with the steel strand as the center. The plurality of hooks and the plurality of annular cavities are arranged in a one-to-one correspondence. The hooks are located on the outer side of the annular cavities away from the center of the optical cable, and the hooks are bent hooks with openings.
[0013] In one embodiment of this utility model, the outer sheath is made of HDPE, and the loose tube is made of PBT.
[0014] In one embodiment of this utility model, the material of the hook-shaped skeleton filler is PP, and the hook-shaped skeleton filler is thermoplastic molded, and the hook-shaped skeleton filler is covered with a layer of POE.
[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects:
[0016] The hook-shaped skeleton armored optical cable for deep-sea exploration described in this utility model adopts a multi-layer armored structure, exhibiting excellent water-blocking characteristics and resistance to torsion and lateral pressure. During laying, this deep-sea armored optical cable can withstand complex seabed environments, significant torsion, and lateral pressure, enabling laying in multi-functional seabed ecological environments. Through the design of multiple protective layers, the cable's strength is enhanced while the water-blocking structure solves the seepage problem, simultaneously improving the cable's tensile strength and extending its service life. It also possesses excellent resistance to torsion, lateral pressure, and detection advantages. The hook-shaped skeleton armored optical cable for deep-sea exploration shows great promise for future development in harsh seabed environments and is beneficial for widespread use. The hook-shaped skeleton armored optical cable for deep-sea exploration described in this utility model is rationally designed, has excellent resistance to torsion and lateral pressure, and high detection accuracy, making it suitable for applications in complex seabed environments such as the deep sea. Attached Figure Description
[0017] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:
[0018] Figure 1 This is a cross-sectional view of the hook-shaped skeleton armored optical cable for deep-sea exploration in a preferred embodiment of the present invention.
[0019] Explanation of markings in the accompanying drawings: 1. Color bar; 2. Optical fiber; 3. Loose tube; 4. First water-blocking tape; 5. Second water-blocking tape; 6. First phosphated steel wire; 7. Second phosphated steel wire; 8. Tear rope; 9. Water-blocking yarn; 10. Third phosphated steel wire; 11. Third water-blocking tape; 12. Steel strand; 13. Detection sensor; 14. Hook-shaped skeleton filler; 15. Outer sheath. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0021] Reference Figure 1 As shown, the hook-shaped skeleton armored optical cable for deep-sea exploration of this utility model includes: steel strands 12, which are disposed at the center of the optical cable, and multiple steel strands 12 are provided and twisted together; hook-shaped skeleton filler 14, which is sleeved on the outside of the steel strands 12, and a second water-blocking strip 5 with an annular cross section is provided between the inner layer of the hook-shaped skeleton filler 14 and the outer layer of the steel strands 12; the hook-shaped skeleton filler 14 is provided with several annular cavities and several hooks, and optical fibers 2 are provided in the annular cavities and hooks; a first phosphated steel wire 6 and water-blocking yarn 9 are provided between the several hooks; a third water-blocking strip 11, which is wrapped around the outside of the hook-shaped skeleton filler 14; and an outer sheath 15, which is sleeved on the outside of the third water-blocking strip 11, and a several second phosphated steel wires 7 are provided between the inner layer of the outer sheath 15 and the outer layer of the third water-blocking strip 11. The outer sheath 15 is made of HDPE. It adopts a stranded steel wire armor structure to protect the communication optical fiber, so that the optical fiber is protected from mechanical and environmental influences and damage, and is mainly suitable for submarine applications.
[0022] In the above structure, the optical fiber 2 is wrapped with a loose tube 3, the loose tube 3 is made of PBT, and the loose tube 3 is wrapped with a first water-blocking tape 4.
[0023] In the above structure, the outer sheath 15 has a colored stripe 1 on its outer surface. Preferably, the outer sheath 15 has two colored stripes 1 on its sidewall, which are arranged along the length of the optical cable, and the two colored stripes 1 are located at opposite ends of the same diameter of the outer sheath 15. The outer sheath 15 has a colored stripe design, making it easy to identify.
[0024] In the above structure, a detection sensor 13 is nested inside the outer sheath 15. The design using the detection sensor 13 can effectively solve the detection problem during installation. Preferably, there are two detection sensors 13, and the two detection sensors 13 are arranged on the same diameter of the optical cable.
[0025] In the above structure, a ring of third phosphated steel wires 10 is arranged in a circular array on the outside of the first water-blocking strip 4.
[0026] In the above structure, there are several second phosphated steel wires 7 arranged in a circular array, forming a ring. A tear rope 8 is provided between the inner layer of the second phosphated steel wires 7 and the outer layer of the third water-blocking strip 11. The tear rope 8 is made of 6000D tear rope for easy stripping.
[0027] In the above structure, the plurality of annular cavities are arranged in a ring array on the hook-shaped skeleton filler 14 with the steel strand 12 as the center. The plurality of hooks and the plurality of annular cavities are arranged in a one-to-one correspondence. The hooks are located on the outer side of the annular cavities away from the center of the optical cable. The hooks are bent hooks with openings.
[0028] In the above structure, the hook-shaped skeleton filler 14 is made of PP and is thermoplastic molded. The hook-shaped skeleton filler 14 is covered with a layer of POE. Unlike existing skeleton fillers, the combination of PP and POE materials provides superior elasticity and toughness, protecting the optical cable from damage caused by external pressure.
[0029] This utility model discloses a hook-shaped skeleton armored optical cable for deep-sea exploration. It adopts a color stripe appearance design combined with a detection sensor. The internal structure is multi-layered armored, with steel strands and water-blocking yarn in the center. The hook-shaped skeleton filler 14 armored structure is made of PP and POE materials, and is equipped with water-blocking tape to improve water resistance, torsion resistance and lateral pressure protection. The cable core is twisted in an armored twisting manner. The central structure includes colored optical fiber, water-blocking tape, PBT sheath, tear rope and HDPE outer sheath.
[0030] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A hook-shaped skeleton armored optical cable for deep-sea exploration, characterized in that, include: Steel strand, which is placed at the center of the optical cable; A hook-shaped skeleton filler is fitted over the outside of the steel strand. A second water-blocking strip with an annular cross-section is provided between the inner layer of the hook-shaped skeleton filler and the outer layer of the steel strand. The hook-shaped skeleton filler is provided with several annular cavities and several hooks. Optical fibers are provided in the annular cavities and hooks. A first phosphated steel wire and water-blocking yarn are provided between the hooks. The third water-blocking strip is wrapped around the hook-shaped skeleton filler. An outer sheath is fitted over the third water-blocking strip, and a number of second phosphated steel wires are provided between the inner layer of the outer sheath and the outer layer of the third water-blocking strip.
2. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 1, characterized in that: The optical fiber is wrapped with a loose tube, and the loose tube is wrapped with a first water-blocking tape.
3. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 1 or 2, characterized in that: The outer surface of the outer sheath is provided with colored stripes.
4. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 3, characterized in that: The outer sheath contains a detection sensor.
5. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 2, characterized in that: The outer side of the first water-blocking strip has a ring of third phosphated steel wire arranged in a circular array.
6. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 1, characterized in that: The second phosphated steel wire is configured as a plurality of wires, and the plurality of second phosphated steel wires are arranged in a circular array, with the plurality of second phosphated steel wires forming a ring.
7. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 6, characterized in that: A tear cord is provided between the inner layer of the second phosphated steel wire and the outer layer of the third water-blocking strip.
8. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 1, characterized in that: The plurality of annular cavities are arranged in a ring array on the hook-shaped skeleton filler with the steel strand as the center. The plurality of hooks and the plurality of annular cavities are arranged in a one-to-one correspondence. The hooks are located on the outer side of the annular cavities away from the center of the optical cable. The hooks are bent hooks with openings.
9. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 2, characterized in that: The outer sheath is made of HDPE, and the loose sleeve is made of PBT.
10. The hook-shaped skeleton armored optical cable for deep-sea exploration according to claim 1, characterized in that: The hook-shaped skeleton filler is made of PP and is thermoplastic molded. The hook-shaped skeleton filler is covered with a layer of POE.