Composite anti-snap submarine cable

Abstract

The invention relates to the technical field of cables, and provides a composite anti-snap submarine cable which comprises a conductor and an optical fiber unit and further comprises an insulating sleeve, a protection assembly, an armor layer, an outer coating layer and an outer protection piece, the insulating sleeve is arranged outside the conductor in a sleeving mode, the protection assembly is arranged outside the insulating sleeve and used for protecting the insulating sleeve, and the armor layer is arranged outside the outer coating layer. The armor layer is arranged outside the protection assembly, a plurality of metal rods are arranged inside the armor layer, the armor layer is sleeved with the outer coating layer, the multiple outer protection pieces are arranged outside the outer coating layer and used for conducting supplementary protection on the exterior of the outer coating layer, each outer protection piece comprises two protection rings and two protection rods, and the protection rods are arranged on the two protection rings and used for conducting supplementary protection on the exterior of the outer coating layer. The protection rings are arranged outside the outer coating layer, and the multiple protection rods are arranged between the two protection rings at equal angles. By means of the technical scheme, the problem that in the prior art, abrasion or breakage of a submarine cable is difficult to deal with is solved.

Description

Technical Field

[0001] The invention relates to the technical field of cables, and in particular to a composite anti-breaking submarine cable. Background Art

[0002] Submarine cables are cables wrapped in insulating materials, laid on the seabed and used for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables all use optical fiber as material to transmit telephone and Internet signals.

[0003] As a cable laid on the seabed, submarine cables should naturally have pressure resistance, waterproof and corrosion resistance. At the same time, in the process of laying submarine cables, the cables are large in diameter and heavy in weight. The seabed environment is complex, with reefs, canyons and other terrains. When the submarine cables need to be pulled, they may be strained or broken. The submarine cables are very long and the laying environment is complex. Wear or breakage is difficult to deal with. Therefore, the submarine cables need to have strong strength. Therefore, we propose a composite anti-break submarine cable. Summary of the invention

[0004] The invention provides a composite anti-breaking submarine cable, which solves the problem in the prior art that the submarine cable is difficult to handle due to wear or breakage.

[0005] The technical solution of the present invention is as follows: A composite anti-breaking submarine cable comprises a conductor and an optical fiber unit, and further comprises: An insulating sleeve, the insulating sleeve covering the outside of the conductor; A protection component, which is arranged outside the insulating sleeve and is used to protect the insulating sleeve, and the protection component includes: An inner protective sleeve, wherein the inner protective sleeve is sleeved on the outside of the insulating sleeve; An outer protective sleeve, the outer protective sleeve is arranged outside the inner protective sleeve; A support seat, wherein a plurality of the support seats are provided, and the plurality of the support seats are arranged at equal angles between the inner protective sleeve and the outer protective sleeve; An armor layer, wherein the armor layer is arranged outside the protective assembly, a plurality of metal rods are arranged inside the armor layer, and a filler is arranged between the armor layer, the outer protective sleeve and the optical fiber unit; An outer layer, the outer layer being sleeved outside the armor layer; An outer protective member, wherein a plurality of the outer protective members are provided, and the outer protective member is arranged outside the outer layer for providing supplementary protection to the outside of the outer layer, and the outer protective member comprises: A protective ring, two of which are provided, and the protective rings are arranged outside the outer layer; A plurality of protection rods are provided, and the plurality of protection rods are arranged at equal angles between the two protection rings.

[0006] In order to improve the compression resistance of the cable, a compression resistance component is provided outside the outer protective sheath, and the compression resistance component includes: A pressure-resistant layer, which is arranged outside the outer protective sleeve, and a filler is arranged between the pressure-resistant layer and the outer protective sleeve; A fixing seat, the fixing seat being arranged on the outer protective sleeve; A support rod, wherein a slide groove is provided on the fixing seat, and the support rod is slidably arranged inside the slide groove; A support spring is arranged inside the fixing seat, and the support rod is connected to the support spring.

[0007] In order to reduce the damage to the protection rod, the protection rod is provided with a roller along the radial outer side of the protection ring.

[0008] In order to improve the waterproof effect of the cable, a waterproof component is also included, and the waterproof component includes: The waterproof layer is sleeved on the outside of the outer layer, and the inside of the waterproof layer contains water-based adhesive.

[0009] In order to further improve the strength of the cable, a reinforcing member is further included, and the reinforcing member is arranged inside the armor layer, and the reinforcing member includes: A reinforcement seat, the reinforcement seat being arranged inside the armor layer; A reinforcing rib, wherein a plurality of the reinforcing ribs are provided, the plurality of the reinforcing ribs are provided on the reinforcing seat, the plurality of the reinforcing ribs are connected to each other, and the connection points of the plurality of the reinforcing ribs are located at the center of the circle of the armor layer.

[0010] The working principle and beneficial effects of the present invention are: 1. In the present invention, the conductor and the optical fiber unit in the middle position are protected by the armor layer and the metal rod, and the filling and the armor layer are supported by the reinforcing ribs and the reinforcing seat, so as to further improve the support and strength of the armor layer, thereby providing compression protection for the conductor and the optical fiber unit. At the same time, the outer protective layer is also a metal structure to protect the conductor, and the outer protective layer is supported by the support seat to avoid damage to the conductor and the optical fiber unit caused by seawater squeezing.

[0011] 2. In the present invention, the conductor and the optical fiber unit are protected against tensile stress by the armor layer and the metal rod. Both the metal rod and the armor layer are metal structures, which provide greater tensile strength during the laying of the submarine cable. At the same time, the external part is reinforced by the protective ring and the protective rod, which further reduces the direct pulling on the internal conductor and optical fiber of the submarine cable, thereby ensuring the integrity and safety of the conductor and optical fiber unit.

[0012] 3. In the present invention, the outside of the cable is protected by a protective ring and a protective rod, and the direct contact between the outer layer of the cable and the seabed is reduced, thereby reducing the damage to the outer layer of the cable caused by pulling during laying. At the same time, the distance between the outer layer of the cable and the seabed is further increased by the setting of the roller. At the same time, the rolling of the roller reduces the resistance of the submarine cable during movement, which facilitates the laying of the submarine cable. At the same time, when the external waterproof layer of the submarine cable is damaged, the adhesive in the water is exposed to the seawater environment and adheres to the damaged position, thereby avoiding greater damage.

[0013] 4. Therefore, compared with the submarine cables in the prior art, the present invention provides tensile and compressive protection for the outside of the conductor and the optical fiber unit through metal rods, armor layers, reinforcement seats and reinforcement ribs, protects the conductor through an outer protective layer, an inner protective layer and a support seat, and further provides compressive protection for the conductor through a pressure-resistant component. The outside of the submarine cable is protected by a protective ring and a protective rod, thereby reducing direct contact between the outside of the cable and the seabed, reducing damage during cable laying, and reducing movement resistance during cable laying through the rotation of rollers. When the waterproof layer is damaged, the adhesive in the water is exposed to the seawater environment and bonds to the damaged position, thereby avoiding greater damage and having better compressive and anti-tear properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the planar structure of the cross section of the present invention as a whole; Figure 3 It is a three-dimensional structural schematic diagram of the conductor, insulating sleeve, protective component and pressure-resistant component of the present invention; Figure 4 It is a schematic plan view of the cross section of the conductor, the insulating sleeve, the protective component and the pressure-resistant component of the present invention; Figure 5 It is a schematic diagram of the structure of the fixing seat, the support rod and the support spring of the present invention; Figure 6 It is a schematic diagram of the structure of the outer protective member, the roller and the protective plate of the present invention; Figure 7It is a schematic diagram of the structure of the waterproof component of the present invention; Figure 8 It is a structural schematic diagram of the reinforcement member of the present invention; Fig. 9 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0016] In the figure: 1. Conductor; 2. Optical fiber unit; 3. Insulation sleeve; 4. Armor layer; 5. Metal rod; 6. Outer layer; 7. Roller; 8. Protective plate; 9. Filling; 101, inner protective cover; 102, outer protective cover; 103, support seat; 104, support plate; 201, protective ring; 202, protective rod; 203, connecting plate; 301, compression-resistant layer; 302, fixing seat; 303, supporting rod; 304, supporting spring; 401, waterproof layer; 402, partition board; 501. Reinforced seat; 502. Reinforced ribs. DETAILED DESCRIPTION

[0017] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 9 As shown, this embodiment proposes a composite anti-breaking submarine cable, including a conductor 1 and an optical fiber unit 2, and also includes an insulating sleeve 3, a protective component, an armor layer 4, an outer layer 6 and an outer protective part. Compared with the submarine cable in the prior art, the present invention uses a metal rod 5, an armor layer 4, a reinforcing seat 501 and a reinforcing rib 502 to perform tensile and compressive protection on the outside of the conductor 1 and the optical fiber unit 2, and protects the conductor 1 through an outer protective layer, an inner protective layer and a support seat 103. At the same time, the conductor 1 is further protected against compression by a compression component, and the outside of the submarine cable is protected by a protective ring 201 and a protective rod 202, thereby reducing direct contact between the outside of the cable and the seabed, reducing damage during cable laying, and reducing movement resistance during cable laying by rotating a roller 7. When the waterproof layer 401 is damaged, the adhesive in the water is exposed to the seawater environment for bonding, and adheres to the damaged position, thereby avoiding greater damage, and having good anti-compression and anti-breaking performance.

[0019] like Figures 1 to 4As shown, the insulating sleeve 3 is sheathed on the outside of the conductor 1, and the insulating sleeve 3 is used to isolate and protect the multiple conductors 1 and the conductor 1 and the optical fiber unit 2 to avoid interference between the lines.

[0020] like Figures 1 to 4 As shown, the protection component is arranged on the outside of the insulating sleeve 3 for protecting the insulating sleeve 3, and the protection component includes an inner protective sleeve 101, an outer protective sleeve 102 and a support seat 103. The inner protective sleeve 101 is sleeved on the outside of the insulating sleeve 3, and the outer protective sleeve 102 is arranged on the outside of the inner protective sleeve 101. There are multiple support seats 103, and the multiple support seats 103 are arranged at equal angles between the inner protective sleeve 101 and the outer protective sleeve 102. The outer protective sleeve 102 and the support seat 103 are both made of metal materials, for example, cemented carbide can be selected, and the inner protective sleeve 101 is a high-strength fiber material. The inner protective sleeve 101 is arranged on the outside of the insulating sleeve 3. In addition to the inner protective sleeve 101, the outer protective sleeve 102 and the support seat 103 providing compression and tensile protection for the conductor 1, the inner protective sleeve 101 is also made of insulating material to improve the isolation and protection effect between the conductors 1. A support plate 104 is also arranged between the support seats 103 to further improve the supporting effect of the support seat 103 on the outer protective sleeve 102 and improve the compression resistance of the conductor 1.

[0021] like Figure 1 to Figure 2 As shown, the armor layer 4 is arranged outside the protective component, and a plurality of metal rods 5 are arranged inside the armor layer 4. A filler 9 is arranged between the armor layer 4 and the outer protective sleeve 102 and the optical fiber unit 2. The armor layer 4 is a layer of metal protection installed on the outermost side of the product to prevent the internal utility layer from being damaged during transportation and installation. The armor layer 4 itself is hot-dip galvanized steel wire, and a metal rod 5 with a larger diameter is arranged inside it to further play a protective role. At the same time, the armor layer 4 and the metal rod 5 have a large weight, which is convenient for the submarine cable to remain stable on the seabed and reduce its movement or floating under the impact of water flow and buoyancy.

[0022] like Figure 1 to Figure 2 As shown, the outer layer 6 is sleeved on the outside of the armor layer 4. The outer layer 6 is made of an anti-corrosion composite material. The outer layer 6 is processed in one piece and has waterproof and anti-corrosion effects, thereby protecting the outer layer of the submarine cable.

[0023] like Figure 1 and Figure 6As shown, there are multiple outer protective members, which are arranged outside the outer layer 6 and are used to provide additional protection for the outside of the outer layer 6. The outer protective member includes a protective ring 201 and a protective rod 202. Two protective rings 201 are provided, and the protective rings 201 are arranged outside the outer layer 6. There are multiple protective rods 202, and the multiple protective rods 202 are arranged at equal angles between the two protective rings 201. There is a small bending curve in the cable between two adjacent protective rings 201 to adapt to the slight expansion and contraction of the submarine cable under temperature changes. The protective ring 201 is provided with a disassembly port for installing and disassembling the protective rod 202. Both ends of the protective rod 202 are provided with connecting plates 203, and the connecting plates 203 are connected by bolts and The protective ring 201 is detachably connected, and the protective rod 202 can be installed between the two protective rings 201 by bolts. The protective ring 201 and the protective rod 202 are used to protect the outside of the cable, reduce the contact between the outer layer 6 and the seabed, and thus reduce the damage to the cable sheath caused during the cable laying and pulling process. At the same time, the two protective rings 201 are connected and fixed by the protective rod 202, that is, the two points of the cable are fixed. When the cable is pulled, the protective rod 202, the armor layer 4 and the metal rod 5 are mainly subjected to force to avoid damage to the conductor 1 and the optical fiber unit 2 during the pulling process. The protective rod 202 can also play a role in preventing fish from biting, preventing seabed organisms from biting the cable and damaging the cable.

[0024] like Figures 1 to 4 As shown, in order to improve the compression resistance of the cable, a compression resistance component is arranged outside the outer protective sleeve 102, and the compression resistance component includes a compression resistance layer 301, a fixing seat 302, a support rod 303 and a support spring 304. The compression resistance layer 301 is arranged outside the outer protective sleeve 102, and a filler 9 is arranged between the compression resistance layer 301 and the outer protective sleeve 102. The fixing seat 302 is arranged on the outer protective sleeve 102, and a slide groove is opened on the fixing seat 302. The support rod 303 is slidably arranged inside the slide groove, and the support spring 304 is arranged inside the fixing seat 302. The support rod 303 and the support spring 304 are connected, and the support rod 303 is in contact with the compression resistance layer 301. The filler 9 ensures The stability of the support rod 303 in the pressure-resistant layer 301 is enhanced by supporting the support rod 303 through the support spring 304, thereby supporting the pressure-resistant layer 301. The pressure-resistant layer 301 is made of cemented carbide, and the pressure-resistant layer 301 further provides pressure and tensile protection for the conductor 1. The support rod 303 supports the pressure-resistant layer 301 to improve the strength of the pressure-resistant layer 301. There is a large sliding damping between the support rod 303 and the fixed seat 302. The support spring 304 absorbs and reduces external impacts. At the same time, the sliding damping between the support rod 303 and the fixed seat 302 absorbs the impact force, thereby reducing the damage to the conductor 1 caused by external impacts.

[0025] like Figure 1 and Figure 6As shown, in order to reduce the strain on the protective rod 202, the protective rod 202 is provided with a roller 7 along the radial outer side of the protective ring 201. The rotation of the roller 7 can reduce the resistance in the cable laying process. At the same time, the roller 7 further increases the distance between the outer layer of the cable and the seabed, reducing the scratches on the outer layer of the cable. The rotation direction of the roller 7 is consistent with the length direction of the cable, which can reduce the left and right deviation and swing of the cable. The resistance is reduced only in the laying direction of the cable. After the cable is laid, it can maintain a stable state under the gravity of the cable itself. At the same time, the roller 7 is made of corrosion-resistant material. After the submarine cable is laid, The roller 7 is corroded by seawater, and its surface is rough or even dissolved, which greatly reduces its mobility and ensures the stability of the submarine cable. A protective plate 8 is provided on the side of the protective rod 202 away from the roller 7, that is, on the side close to the armor layer 4. The protective plate 8 is arc-shaped. When the roller 7 contacts the seabed, the outside world squeezes the roller 7. If the protective rod 202 is bent, the protective plate 8 is pressed on the outside of the cable, and the armor layer 4 and the outer layer 6 support the protective plate 8, thereby supporting the roller 7, avoiding long-term stress on the roller 7 causing the protective rod 202 to bend at a single position, thereby ensuring the stability of the protective rod 202.

[0026] like Figure 1 , Figure 2 and Figure 7 As shown, in order to improve the waterproof effect of the cable, it also includes a waterproof component, which includes a waterproof layer 401. The waterproof layer 401 is mounted on the outside of the outer layer 6. The waterproof layer 401 contains an underwater adhesive. A storage cavity is opened inside the waterproof layer 401. The underwater adhesive is located inside the storage cavity, and a plurality of partition plates 402 are arranged inside the storage cavity. The plurality of partition plates 402 are staggered. While the underwater adhesive fills the storage cavity, the partition plates 402 support the waterproof layer 401 to ensure the strength of the waterproof layer 401.

[0027] like Figure 1 , Figures 2 to 8 As shown, in order to further improve the strength of the cable, a reinforcing member is further included. The reinforcing member is arranged inside the armor layer 4. The reinforcing member includes a reinforcing seat 501 and a reinforcing rib 502. The reinforcing seat 501 is arranged inside the armor layer 4. A plurality of reinforcing ribs 502 are arranged. The reinforcing ribs 502 are arranged on the reinforcing seat 501. The plurality of reinforcing ribs 502 are interconnected, and the connection points of the plurality of reinforcing ribs 502 are located at the center of the armor layer 4. The reinforcing seat 501 and the reinforcing rib 502 provide rigid support for the filling 9 in the armor layer 4 to reduce the deformation of the armor layer 4, thereby reducing the extrusion of the conductor 1 and the optical fiber unit 2. At the same time, the reinforcing seat 501 and the reinforcing rib 502 are also made of cemented carbide and have a large weight, which can keep the submarine cable stable on the seabed.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite anti-break submarine cable, comprising a conductor (1) and an optical fiber unit (2), characterized in that: Also includes: An insulating sleeve (3), the insulating sleeve (3) being sheathed around the outside of the conductor (1); A protection component, the protection component is arranged outside the insulating sleeve (3) and is used to protect the insulating sleeve (3); An armor layer (4), the armor layer (4) being arranged outside the protection component, and a plurality of metal rods (5) being arranged inside the armor layer (4); An outer layer (6), the outer layer (6) being sleeved on the outside of the armor layer (4); An outer protective member, wherein a plurality of the outer protective members are provided, and the outer protective member is arranged outside the outer layer (6) and is used to provide supplementary protection to the outside of the outer layer (6), and the outer protective member comprises: A protective ring (201), wherein two protective rings (201) are provided, and the protective rings (201) are arranged outside the outer layer (6); A protection rod (202), wherein a plurality of the protection rods (202) are provided, and the plurality of protection rods (202) are arranged at equal angles between the two protection rings (201).

2. The composite anti-breaking submarine cable according to claim 1, characterized in that: The protection component comprises: An inner protective sleeve (101), the inner protective sleeve (101) being sleeved on the outside of the insulating sleeve (3); An outer protective sleeve (102), the outer protective sleeve (102) being arranged outside the inner protective sleeve (101); A support seat (103), wherein a plurality of the support seats (103) are provided, and the plurality of support seats (103) are arranged at equal angles between the inner protective sleeve (101) and the outer protective sleeve (102).

3. The composite anti-breaking submarine cable according to claim 2, characterized in that: A pressure-resistant component is arranged outside the outer protective sleeve (102), and the pressure-resistant component comprises: A pressure-resistant layer (301), the pressure-resistant layer (301) being arranged outside the outer protective sleeve (102), and a filler (9) being arranged between the pressure-resistant layer (301) and the outer protective sleeve (102); A fixing seat (302), the fixing seat (302) being arranged on the outer protective sleeve (102); A support rod (303), wherein a slide groove is provided on the fixing seat (302), and the support rod (303) is slidably arranged inside the slide groove; A support spring (304), wherein the support spring (304) is arranged inside the fixing seat (302), and the support rod (303) and the support spring (304) are connected.

4. The composite anti-breaking submarine cable according to claim 3, characterized in that: It also includes a waterproof component, which includes: A waterproof layer (401), wherein the waterproof layer (401) is sleeved on the outside of the outer layer (6), and an aqueous adhesive is contained inside the waterproof layer (401).

5. The composite anti-breaking submarine cable according to claim 4, characterized in that: The protection rod (202) is provided with a roller (7) along the radial outer side of the protection ring (201), and the roller (7) is made of a non-corrosive material.

6. The composite anti-breaking submarine cable according to claim 5, characterized in that: It also includes a reinforcement member, which is arranged inside the armor layer (4), and includes: A reinforcement seat (501), the reinforcement seat (501) being arranged inside the armor layer (4); A reinforcing rib (502), wherein a plurality of the reinforcing ribs (502) are provided, the reinforcing ribs (502) are provided on the reinforcing seat (501), the plurality of the reinforcing ribs (502) are connected to each other, and the connection point of the plurality of the reinforcing ribs (502) is located at the center of the armor layer (4).

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