A submarine cable protection device

Abstract

The present invention relates to the field of marine cable protection and discloses a submarine cable protection device, which includes a protection unit, the protection unit including an internal protection component and an external protection component, the internal protection component including a protection shell, the protection shell having a first cavity for placing a submarine cable, the first cavity penetrating the protection shell along a first direction, and the first cavity having an opening arranged downward, and a first through hole communicating with the first cavity is provided on a side of the protection shell facing away from the first cavity; a second cavity is provided inside the external protection component, the external protection component cover is fixed to the side of the internal protection component facing away from the opening, the external protection component including a top plate and side plates respectively arranged on both sides of the top plate, the side plates extending to a side away from the top plate and tilted toward the second cavity. The present invention effectively solves the technical problems of poor anchor damage prevention and scouring prevention effects of submarine cable protection devices in the prior art through the internal protection component and the external protection component.

Description

Technical Field

[0001] The present invention relates to the field of marine cable protection, in particular to a marine cable protection device. Background Art

[0002] Submarine cables are cables wrapped in insulating material, laid on the seabed, and used for telecommunications transmission. Submarine cables are categorized as either submarine communications cables or submarine power cables. Modern submarine cables are constructed using optical fiber to transmit telephone and internet signals. Due to the complex maritime environment and the large number of ships traveling on the sea, submarine cables are highly susceptible to damage when anchored. Furthermore, strong ocean currents can cause severe vibrations in the cable structure, leading to fatigue failure and mechanical damage to the cable itself, threatening its safety.

[0003] Currently, existing technologies for protecting submarine cables primarily involve riprap, sandbag coverage, and concrete blocks. However, these existing cable protection devices are susceptible to submarine currents and offer limited protection against anchor damage, failing to meet the demands for long-term, high-quality cable protection. Summary of the Invention

[0004] The technical problems to be solved by the present invention are: poor anchor damage prevention effect and poor scouring prevention effect of submarine cables.

[0005] In order to solve the above technical problems, the present invention provides a submarine cable protection device, which includes a protection unit, the protection unit includes an internal protection component and an external protection component, the internal protection component includes a protective shell, the protective shell is provided with a first cavity for placing the submarine cable, the first cavity penetrates the protective shell along a first direction, and the first cavity has an opening arranged downward, and a first through hole connected to the first cavity is provided on a side of the protective shell facing away from the first cavity; a second cavity is provided inside the external protection component, the internal protection component is arranged in the second cavity, and the external protection component cover is fixed to the side of the internal protection component facing away from the opening, the external protection component includes a top plate and side plates respectively arranged on both sides of the top plate, the side plates extend to a side away from the top plate and tilt toward the second cavity, and a second through hole connected to the second cavity is provided on a side of the side plate facing away from the second cavity.

[0006] In one embodiment, the internal protection assembly further includes a first resistance plate. The first resistance plates are respectively connected to two side surfaces of the protection shell facing away from the first cavity, and the first resistance plates extend along the first direction.

[0007] In one embodiment, the external protection assembly further includes a second resistance plate, and the two side surfaces of the side plate facing away from the second cavity are respectively connected to the second resistance plates, and the second resistance plates extend along the first direction.

[0008] In one embodiment, the protective shell includes a connecting plate and extension plates respectively provided on both sides of the connecting plate, wherein the extension plates extend toward a side away from the connecting plate and are inclined toward the first cavity.

[0009] In one embodiment, the first through hole is provided on the extension plate, and the first through hole is located on a side of the extension plate close to the connecting plate.

[0010] In one embodiment, the number of the first through holes is at least two, and the at least two first through holes are spaced apart and opened on the extension plate.

[0011] In one embodiment, the number of the second through holes is at least two, and the at least two second through holes are spaced apart and opened on the side plate.

[0012] In one embodiment, the submarine cable protection device includes a plurality of protection units, and the plurality of protection units are arranged along the axial direction of the submarine cable.

[0013] In one embodiment, the submarine cable protection device further includes a buffer member, which is disposed between the inner protection component and the outer protection component, and extends out of the outer protection component through the second through hole.

[0014] In one embodiment, the buffer member is bionic water plants.

[0015] Compared with the prior art, the submarine cable protection device of the embodiment of the present invention has the following advantages: 1) The internal protection component fixes the exposed submarine cable, preventing the submarine cable from vibrating due to the erosion of the water flow, causing friction between the submarine cable and the seabed, and thus causing damage to the submarine cable; 2) The external protection component prevents the anchor from hooking the submarine cable and causing damage to the submarine cable. At the same time, the external protection component is arranged on the outer periphery of the internal protection component to protect the internal protection component, realizing multi-layer protection of the submarine cable by the submarine cable protection device, effectively preventing the anchor chain from scraping the submarine cable body when passing ships drop anchor, causing mechanical damage to the submarine cable; 3) The first through hole and the second through hole reduce the hydrodynamic effect. The submarine cable protection device uses the through hole and the plate body to form a linear support, thereby reducing the area of ​​the submarine cable protection device in contact with the water flow, reducing the resistance exerted by the water flow on the submarine cable protection device, and significantly improving the adaptability to seabed changes. It also has the effect of saving material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the structure of the external protection component of an embodiment of the present invention.

[0018] Figure 3 Schematic diagram of the structure of the internal protection component of an embodiment of the present invention.

[0019] Figure 4 2 is a top view of an embodiment of the present invention.

[0020] Figure 5 It is a front view of the embodiment of the present invention during use.

[0021] In the figure, 1, internal protection component; 11, protection shell; 111, first through hole; 112, connecting plate; 113, extension plate; 12, first resistance plate; 13, first cavity;

[0022] 2. External protection assembly; 21. Top plate; 22. Side plate; 221. Second through hole; 23. Second resistance plate; 24. Second cavity;

[0023] 3. Buffer parts;

[0024] 100. Protection unit. DETAILED DESCRIPTION

[0025] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, it should be understood that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or indirectly connected to the other element. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, it may be internal communication between two elements or an interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In the description of the present invention, it should be understood that the terms "height", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like used in the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In describing the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being described. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more of such features.

[0029] like Figure 1-5 As shown, an embodiment of the present invention preferably provides a submarine cable protection device, which includes a protection unit 100, and the protection unit 100 includes an internal protection component 1 and an external protection component 2. The internal protection component 1 includes a protection shell 11, and the protection shell 11 is provided with a first cavity 13 for placing the submarine cable. The first cavity 13 passes through the protection shell 11 along a first direction, and the first cavity 13 has an opening arranged downward, and a side of the protection shell 11 facing away from the first cavity 13 is provided with a first through hole 111 connected to the first cavity 13; a second cavity 24 is provided inside the external protection component 2, the internal protection component 1 is arranged in the second cavity 24, and the external protection component 2 is covered and fixed on the side of the internal protection component 1 facing away from the opening, and the external protection component 2 includes a top plate 21 and side plates 22 respectively arranged on both sides of the top plate 21, the side plates 22 extend to a side away from the top plate 21 and are inclined in the direction of the second cavity 24, and a second through hole 221 connected to the second cavity 24 is provided on the side of the side plate 22 facing away from the second cavity 24.

[0030] Based on the above technical features, the beneficial effects of the present invention are: 1) The exposed submarine cable is fixed by the internal protection component 1 to prevent the submarine cable from vibrating due to the erosion of the water flow, causing friction between the submarine cable and the seabed, and then causing damage to the submarine cable; 2) The external protection component 2 is used to prevent the anchor from hooking the submarine cable and causing damage to the submarine cable. At the same time, the external protection component 2 is covered on the outer periphery of the internal protection component 1, which can protect the internal protection component 1, realizing multi-layer protection of the submarine cable by the submarine cable protection device, and effectively avoiding the anchor chain scraping the submarine cable body when the passing ships drop anchor, causing mechanical damage to the submarine cable; 3) The first through hole 111 and the second through hole 221 are used to reduce the hydrodynamic effect. The submarine cable protection device uses through holes and plates to form linear supports, thereby reducing the contact area between the submarine cable protection device and the water flow, reducing the resistance exerted by the water flow on the submarine cable protection device, and at the same time greatly improving the adaptability to seabed changes.

[0031] In some embodiments of the present invention, the internal protection assembly 1 further includes a first resistance plate 12. The first resistance plates 12 are connected to both sides of the protective housing 11 facing away from the first cavity 13, and the first resistance plates 12 extend along a first direction. The first resistance plates 12 provide a force opposite to the direction of the internal protection assembly 1's sinking when the internal protection assembly 1 sinks to the bottom of the seabed, effectively preventing the internal protection assembly 1 from sinking deep into the seabed. This prevents the internal protection assembly 1 from sinking while enhancing the stability of the submarine cable protection device during its sinking.

[0032] In some embodiments of the present invention, the external protection assembly 2 further includes a second resistance plate 23. The second resistance plates 23 are connected to the two sides of the side plate 22 facing away from the second cavity 24, and the second resistance plates 23 extend along the first direction. The second resistance plates 23 provide a force in the opposite direction of the external protection assembly 2's descent when the external protection assembly 2 sinks to the seabed, effectively preventing the external protection assembly 2 from sinking deep into the seabed and further improving the stability of the submarine cable protection device as it sinks in seawater.

[0033] As some embodiments of the present invention, see Figure 3 The protective housing 11 includes a connecting plate 112 and extension plates 113 disposed on either side of the connecting plate 112. The extension plates 113 extend away from the connecting plate 112 and are inclined toward the first cavity 13. The arrangement of the connecting plate 112 and the extension plates 113 creates an isosceles trapezoidal cross-section in the protective housing 11. This is a very stable structural shape that provides excellent structural strength and stability for the submarine cable protection device, protecting the submarine cable within the device from water impact or vibration. The isosceles trapezoidal shape also improves the fluid dynamics within the device, such as reducing turbulence and resistance or improving the flow properties of the fluid.

[0034] In some embodiments of the present invention, a first through hole 111 is provided on the extension plate 113, and the first through hole 111 is located on a side of the extension plate 113 close to the connection plate 112. The provision of the first through hole 111 allows the first cavity 13 to communicate with the outside world, ensuring that the pressure inside the first cavity 13 is always the same as the pressure on the seabed, thereby ensuring the stability of the internal environment of the first cavity 13. At the same time, the first through hole 111 can divert water flow to a certain extent, reducing the scouring force of the water flow on the submarine cable in the first cavity 13.

[0035] In some embodiments of the present invention, there are at least two first through holes 111, and the at least two first through holes 111 are spaced apart and arranged on the extension plate 113. The provision of multiple first through holes 111 allows the first cavity 13 to communicate with the outside world through the multiple first through holes 111, further improving the air pressure balance within the first cavity 13 and reducing the impact of water flow on the submarine cable within the first cavity 13.

[0036] As some embodiments of the present invention, see Figure 2 The number of second through holes 221 is at least two, and at least two second through holes 221 are spaced apart on the side plate 22. The second through holes 221 are arranged on the side plate 22 at multiple intervals, and the second cavity 24 is connected to the outside through the second through holes 221. When water flows through the second through holes 221, its flow direction changes, reducing the scouring force of the water flow on the second cavity 24, effectively ensuring the stability of the second cavity 24, achieving multi-layer protection for the submarine cable, and improving the protective effect of the submarine cable protection device on the submarine cable.

[0037] In some embodiments of the present invention, a submarine cable protection device includes a plurality of protection units 100, which are arranged axially along the cable. The arrangement of multiple protection units 100 allows a user to place as many protection units 100 as required based on actual application needs, further improving the applicability of the device.

[0038] As some embodiments of the present invention, see Figure 5 The submarine cable protection device further includes a buffer member 3, which is disposed between the inner protection assembly 1 and the outer protection assembly 2 and extends out of the outer protection assembly 2 through the second through hole 221. The buffer member 3 acts as a buffer against water flow, reducing the impact force of the water flow entering the second cavity 24, and effectively achieving an anti-scouring effect for the submarine cable protection device.

[0039] As some embodiments of the present invention, the buffer member 3 is bionic water grass. Through the setting of the bionic water grass, the submarine cable protection device sunk to the seabed preset setting has a structure similar to that of the seabed water grass. At the same time, the bionic water grass is streamlined, which further reduces the impact of the water flow on the device. When the seabed water flows through this piece of bionic seaweed, due to the flexible viscous damping effect of the seaweed, the flow rate of the water flow is reduced, so that the mud and sand carried in the water flow are continuously deposited on the external protection component 2 installed with the bionic water grass under the action of gravity. Under long-term action, the area gradually forms a seabed sandbar, thereby achieving the purpose of avoiding scouring.

[0040] The use process of the present invention is:

[0041] The submarine cable protection devices are arranged adjacent to each other in sequence on the exposed submarine cable along the axial direction of the submarine cable, the submarine cable is placed inside the first cavity 13, and the riprap and bionic water plants are placed inside the second cavity 24;

[0042] When the anchor is thrown to the seabed and reaches the submarine cable area, the anchor contacts the external protection component 2;

[0043] When the submarine cable protection device sinks to the seabed, the bionic water grass extends out of the second cavity 24. Under the flexible viscous damping effect of the bionic water grass, the flow rate of the submarine current passing through the submarine cable protection device is reduced. At the same time, the mud and sand carried in the submarine current are continuously deposited into the second cavity 24 under the action of gravity.

[0044] In summary, the embodiments of the present invention provide a submarine cable protection device, which has the following beneficial effects: 1) The exposed submarine cable is fixed by the internal protection component 1, preventing the submarine cable from vibrating due to the erosion of the water flow, causing friction between the submarine cable and the seabed, and thus causing damage to the submarine cable; 2) The external protection component 2 prevents the anchor from hooking the submarine cable and causing damage to the submarine cable. At the same time, the external protection component 2 is arranged on the outer periphery of the internal protection component 1, which can protect the internal protection component 1, thereby realizing multi-layer protection of the submarine cable by the submarine cable protection device, effectively preventing the anchor chain from scraping the submarine cable body when passing ships drop anchor, causing mechanical damage to the submarine cable; 3) The first through hole 111 and the second through hole 221 are used to reduce the hydrodynamic effect. The submarine cable protection device uses through holes and a plate body to form a linear support structure, thereby reducing the area of ​​the submarine cable protection device in contact with the water flow, reducing the resistance exerted by the water flow on the submarine cable protection device, and significantly improving the adaptability to seabed changes. It also has the effect of saving material costs. 4) Through the second cavity 24, riprap and bionic water plants are placed in the second cavity 24 to ensure that the device sinks stably to the seabed. At the same time, the flexible viscous damping effect of the bionic water plants causes the sediment in the water flow to accumulate in the second cavity 24, further improving the protection effect of the device on the submarine cable.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A submarine cable protection device, characterized in that: A protection unit is included, wherein the protection unit includes: An internal protection assembly, the internal protection assembly comprising a protective shell, the protective shell having a first cavity for accommodating the submarine cable, the first cavity penetrating the protective shell in a first direction, the first cavity having a downwardly disposed opening, and a first through hole communicating with the first cavity being formed on a side of the protective shell facing away from the first cavity; An external protective assembly, wherein a second cavity is provided inside the external protective assembly, the internal protective assembly is provided in the second cavity, the external protective assembly cover is fixed to a side of the internal protective assembly facing away from the opening, the external protective assembly includes a top plate and side plates respectively provided on both sides of the top plate, the side plates extend away from the top plate and are inclined toward the second cavity, and a second through hole communicating with the second cavity is formed on a side of the side plate facing away from the second cavity; The internal protection assembly further includes a first resistance plate, and the two sides of the protection shell facing away from the first cavity are respectively connected to the first resistance plates, and the first resistance plates extend along a first direction; The external protection assembly further includes a second resistance plate. The sides of the two side plates facing away from the second cavity are respectively connected to the second resistance plates, and the second resistance plates extend along the first direction.

2. The submarine cable protection device according to claim 1, characterized in that: The protective shell includes a connecting plate and extension plates respectively provided on both sides of the connecting plate. The extension plates extend toward a side away from the connecting plate and are inclined toward the direction of the first cavity.

3. The submarine cable protection device according to claim 2, characterized in that: The first through hole is provided on the extension plate, and the first through hole is located on a side of the extension plate close to the connecting plate.

4. The submarine cable protection device according to claim 3, characterized in that: The number of the first through holes is at least two, and at least two of the first through holes are spaced apart and opened on the extension plate.

5. The submarine cable protection device according to claim 1, characterized in that: The number of the second through holes is at least two, and at least two of the second through holes are spaced apart and opened on the side plate.

6. The submarine cable protection device according to claim 1, characterized in that: The present invention comprises a plurality of said protection units, and the plurality of said protection units are arranged along the axial direction of the cable.

7. The submarine cable protection device according to claim 1, characterized in that: A buffer member is also included. The buffer member is arranged between the inner protection component and the outer protection component, and the buffer member extends out of the outer protection component through the second through hole.

8. The submarine cable protection device according to claim 7, characterized in that: The buffer member is bionic water plants.

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