A submarine cable anchoring device for submarine cable laying construction

Abstract

This invention relates to the field of submarine cable anchoring technology and discloses a submarine cable anchoring device for submarine cable laying construction. The device includes a fixed block, a movable platform slidably connected to one side of the fixed block, a hinge frame I connected to the fixed block, a diagonal rod rotatably connected to the hinge frame I, a slip ring and a fixed ring connected to the diagonal rod, a spring I connecting between the slip ring and the fixed ring, a connecting sleeve connected to the outside of the slip ring, and a bolt connected to the connecting sleeve. A second hinge frame II rotatably connects to the other end of the diagonal rod, a lifting column connected to the second hinge frame, and an anchor rod connected to one end of the lifting column. This invention achieves foundation stability by having the fixed block penetrate deep into the hard rock layer. The diagonal rod drives the slip ring to compress the spring I, buffering the lateral force on the submarine cable. The lifting column moves downward, causing the anchor rod to insert into soft or semi-soft seabed. The greater the external force, the deeper the insertion. This adapts to complex seabed geology and forms a linkage between buffering, stress relief, and anchoring reinforcement, avoiding stress concentration damage and anchoring failure of the submarine cable.

Description

Technical Field

[0001] This invention relates to the field of submarine cable anchoring technology, and in particular to a submarine cable anchoring device for submarine cable laying construction. Background Technology

[0002] Submarine cable anchoring is a technology for fixing submarine cables. It uses gravity-type, pile-type and other devices to fix the submarine cable to the seabed or seabed structure to resist external forces such as water flow and waves, prevent the submarine cable from shifting, wearing or breaking, and ensure the stable operation of submarine communication, power transmission and other systems. It is a key link in marine engineering.

[0003] In submarine cable laying, the seabed often presents a complex geological environment with soft or semi-soft seabed covered by a hard rock layer. Existing submarine cable anchoring devices have significant defects: rigid fixing structures cannot buffer the dynamic external forces brought by ocean currents and tides, which can easily lead to damage to the submarine cable due to stress concentration; single buffering structures lack anchoring linkage, making it difficult to enhance anchoring force when external forces increase, and are prone to failure; moreover, there is no targeted ocean current guidance design, and the ocean current directly impacts the submarine cable, exacerbating the risk of damage. They are difficult to adapt to complex seabeds and cannot balance buffering and stress relief with anchoring stability, thus affecting the long-term safety of the submarine cable.

[0004] Based on this, a submarine cable anchoring device for submarine cable laying construction is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a submarine cable anchoring device for submarine cable laying construction in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A submarine cable anchoring device for submarine cable laying construction includes a fixed block, a movable platform slidably connected to one side of the fixed block, a hinge frame connected to the fixed block, an inclined rod rotatably connected to the hinge frame, a slip ring and a fixed ring connected to the inclined rod, the slip ring being slidably sleeved on the inclined rod, and the fixed ring being fixedly connected to the upper end of the inclined rod, a spring connecting the slip ring and the fixed ring, a connecting sleeve connected to the outside of the slip ring, and a bolt connected to the connecting sleeve. The submarine cable is fixed by the connecting sleeve, and the bolt ensures the firmness of the connection of the connecting sleeve. During connection, the submarine cable and the inclined rod are perpendicular to each other.

[0008] The other end of the inclined rod is rotatably connected to a second hinge frame. A lifting column is connected below the second hinge frame, and an anchor rod is connected below the lifting column. When the lifting column moves down, it can drive the lower end of the anchor rod to insert into the seabed. A second spring is connected between the lifting column and the moving platform. The anchor rod is connected through the moving platform, and a barb is connected to the lower end of the anchor rod. A force-dissipating mechanism is provided on the side of the fixing block away from the moving platform to reduce the impact of seawater flow on the submarine cable.

[0009] Preferably, a slide rail is connected to one side of the fixed block, and the movable platform is slidably connected to the slide rail.

[0010] Preferably, a limiting rod is connected to the slip ring, and the other end of the limiting rod is connected through to the fixed ring.

[0011] Preferably, a vertical rod is connected to the moving platform, a top frame is connected to the upper end of the vertical rod, a lifting plate is slidably connected to the vertical rod, and the lifting plate is fixedly connected to the lifting column.

[0012] Preferably, the lower end of the anchor rod is connected to a tip, the barb is rotatably connected to the tip, and one side of the barb abuts against the tip.

[0013] Preferably, the unloading mechanism includes a tilting plate, which is rotatably connected to the side of the fixed block away from the moving platform. The moving platform is connected to a U-shaped frame via a connecting strip. A support rod is slidably connected to the U-shaped frame. An inclined frame is connected to one side of the fixed block. The support rod is slidably connected to the inclined frame and abuts against the lower surface of the tilting plate. A sliding groove is provided on the tilting plate, and the U-shaped frame is disposed on the sliding groove.

[0014] Preferably, the fixing block has a connecting groove, and the connecting strip is slidably connected to the connecting groove.

[0015] Preferably, a connecting frame is connected to the outside of the fixing block, the inclined frame is fixedly connected to the connecting frame, a rotating shaft is connected to the connecting frame, the flipping plate is rotatably connected to the rotating shaft, and limit ends are connected to both ends of the support rod.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. This application achieves foundation stability by fixing blocks deep into hard rock layers. The inclined rod drives the slip ring to compress the spring to buffer the lateral force of the submarine cable. The lifting column moves down to insert the anchor into the soft or semi-soft seabed. The greater the external force, the deeper the insertion. This not only adapts to complex seabed geology, but also forms a linkage between buffering and stress relief and anchoring reinforcement, avoiding stress concentration damage and anchoring failure of the submarine cable.

[0018] 2. This application uses a sliding platform to move the support rod upward along the inclined frame, which pushes the flipping plate to deflect and form an inclined surface. This can guide the ocean current flowing towards the submarine cable, reduce the direct impact of the ocean current on the submarine cable, further reduce the risk of damage to the submarine cable, and improve the anchoring stability. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of a submarine cable anchoring device provided according to an embodiment of the present invention is shown;

[0020] Figure 2An exploded view of a portion of the structure of a submarine cable anchoring device provided according to an embodiment of the present invention is shown.

[0021] Figure 3 A schematic diagram of the structure of the barbed connection provided according to an embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of the connection slot opening provided according to an embodiment of the present invention is shown.

[0023] Legend:

[0024] 1. Fixed block; 2. Slide rail; 3. Connecting frame; 4. Inclined frame; 5. Rotating shaft; 6. Flipping plate; 7. Slide groove; 8. U-shaped frame; 9. Limiting end; 10. Hinge frame one; 11. Inclined rod; 12. Slip ring; 13. Connecting sleeve; 14. Bolt; 15. Spring one; 16. Limiting rod; 17. Fixed ring; 18. Connecting strip; 19. Moving platform; 20. Hinge frame two; 21. Lifting column; 22. Vertical rod; 23. Top frame; 24. Spring two; 25. Support rod; 26. Anchor rod; 27. Point; 28. Barb; 29. ​​Connecting groove; 30. Lifting plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figures 1-4 The present invention provides a technical solution:

[0027] A submarine cable anchoring device for submarine cable laying construction includes a fixing block 1, which is fixed to a relatively hard seabed geology such as rock by drilling. A movable platform 19 is slidably connected to one side of the fixing block 1. A hinge frame 10 is connected to the fixing block 1, and an inclined rod 11 is rotatably connected to the hinge frame 10. A sliding ring 12 and a fixed ring 17 are connected to the inclined rod 11. The sliding ring 12 is slidably sleeved on the inclined rod 11, while the fixed ring 17 is fixedly connected to the upper end of the inclined rod 11. A spring 15 is connected between the sliding ring 12 and the fixed ring 17, and the spring 15 is also sleeved on the inclined rod 11. 1. A connecting sleeve 13 is connected to the outside of the slip ring 12. A bolt 14 is connected to the connecting sleeve 13. The connecting sleeve 13 is used to fix the submarine cable. The bolt 14 is used to ensure the connection of the connecting sleeve 13. When connected, the submarine cable and the diagonal rod 11 are perpendicular to each other. The diagonal rod 11, together with the spring 15, buffers the movement of the submarine cable. When the submarine cable moves, it can act on the diagonal rod 11, thereby pressing the anchor rod 26 down into the seabed, which further improves the stability of the device. The spring 24 connected to the anchor rod 26 is used to buffer the downward pressure of the submarine cable on the upper end of the diagonal rod 11.

[0028] The other end of the diagonal bar 11 is rotatably connected to a hinge frame 20. A lifting column 21 is connected to the hinge frame 20. An anchor rod 26 is connected to one end of the lifting column 21. The anchor rod 26 is always in a vertical state. A spring 24 is connected between the lifting column 21 and the moving platform 19. The spring 24 is sleeved on the outside of the anchor rod 26. The anchor rod 26 is connected through the moving platform 19. A barb 28 is connected to the lower end of the anchor rod 26. The barb 28 is used to improve the anchoring stability of the lower end of the anchor rod 26 when it is inserted into the seabed. The seabed into which the anchor rod 26 is embedded is a soft or semi-soft seabed. The fixing block 1 mentioned above is further inserted into the rocky seabed below it after passing through this type of seabed. A stress-relief mechanism is provided on one side of the fixing block 1 to reduce the impact of seawater flow on the submarine cable.

[0029] Specifically, such as Figure 1 As shown, a slide rail 2 is connected to one side of the fixed block 1, and the moving platform 19 is slidably connected to the slide rail 2. By setting the slide rail 2, the stability of the moving platform 19 sliding on one side of the fixed block 1 is improved, and the sliding of the moving platform 19 can also be limited.

[0030] Specifically, such as Figure 2 As shown, a limiting rod 16 is connected to the slip ring 12, and the other end of the limiting rod 16 is connected to the fixed ring 17. By setting the limiting rod 16, the movement of the slip ring 12 is limited, preventing the connecting sleeve 13 from rotating around the inclined rod 11.

[0031] Specifically, such as Figure 3As shown, a vertical rod 22 is connected to the moving platform 19, and a top frame 23 is connected to the upper end of the vertical rod 22. A lifting plate 30 is slidably connected to the vertical rod 22, and the lifting plate 30 is fixedly connected to the lifting column 21. The vertical rod 22 limits the lifting plate 30, thereby improving the stability of the structure when the lifting plate 30 and the lifting column 21 are raised and lowered.

[0032] Specifically, such as Figure 3 As shown, the lower end of the anchor rod 26 is connected to a tip 27, and the barb 28 is rotatably connected to the tip 27. One side of the barb 28 abuts against the tip 27. The tip 27 is set to improve the insertion effect. Together with the barb 28, it can form a stable anchor by the soil wrapping force after being embedded in the seabed. When the barb 28 is tilted, it can only deflect upward and cannot deflect downward.

[0033] Specifically, such as Figure 2 and Figure 3 As shown, the unloading mechanism includes a tilting plate 6, which is rotatably connected to one side of the fixed block 1. The moving platform 19 is connected to a U-shaped frame 8 via a connecting strip 18. A support rod 25 is slidably connected to the U-shaped frame 8. A slanted frame 4 is connected to one side of the fixed block 1. The support rod 25 is slidably connected to the slanted frame 4. The slanted frame 4 is inclined towards the lifting column 21. Since there is no structure connecting the support rod 25 and the tilting plate 6, the connection stability of the tilting plate 6 is poor. The transmission stability between the support rod 25 and the tilting plate 6 can be improved by setting a structure similar to the slanted frame 4 at the lower end of the tilting plate 6. That is, the structure of the tilting plate 6 can be adjusted according to the actual installation environment. The support rod 25 abuts against the lower surface of the tilting plate 6. A sliding groove 7 is opened on the tilting plate 6, and the U-shaped frame 8 is set on the sliding groove 7.

[0034] Specifically, such as Figure 1 and Figure 4 As shown, a connecting groove 29 is provided on the fixed block 1, and the connecting strip 18 is slidably connected to the connecting groove 29. By setting the connecting groove 29, the transmission correlation between the moving platform 19 and the fixed block 1 is further improved.

[0035] Specifically, such as Figure 2 and Figure 3 As shown, a connecting frame 3 is connected to the outside of the fixed block 1, the inclined frame 4 is fixedly connected to the connecting frame 3, the connecting frame 3 is connected to the rotating shaft 5, the flip plate 6 is rotatably connected to the rotating shaft 5, and the two ends of the support rod 25 are connected to the limit end 9. The connection position of the support rod 25 is limited by the limit end 9 to prevent the support rod 25 from shifting position.

[0036] In summary, the submarine cable anchoring device for submarine cable laying provided in this embodiment is not suitable because there are continuous dynamic external forces such as ocean currents and tides on the seabed. Under the action of such external forces, the fixing structure is easily worn.

[0037] The submarine cable structure is fixed on the connecting sleeve 13. When the direction of the ocean current moves from the rotating shaft 5 to the moving platform 19, the ocean current will push the submarine cable to move. At this time, it will simultaneously drive the slip ring 12 to move along the inclined rod 11. While the submarine cable moves, it will also press down on the inclined rod 11, causing the height of the lifting column 21 connected to one end of the inclined rod 11 to drop. That is, when the submarine cable is driven by external forces such as ocean current, the spring 15 and the spring 24 can first buffer the movement of the submarine cable and unload the force through the elastic deformation of the spring 15 and the spring 24.

[0038] Spring 15 prevents the submarine cable from moving along the inclined bar 11, while spring 24 relieves the downward pressure applied to the inclined bar 11 during the movement of the submarine cable. When the lifting column 21 moves down, it can drive the tip 27 of the lower end of the anchor rod 26 to insert into the seabed. The greater the impact of the ocean current, the deeper the tip 27 is inserted into the seabed. Thus, the stability of the anchor rod 26 is stabilized by the barbs 28, forming a linkage effect of buffering and stress relief and anchoring reinforcement, effectively resisting the impact of ocean current on the submarine cable.

[0039] During the downward deflection of the inclined rod 11, the moving platform 19 will slide on the slide rail 2. At this time, the moving platform 19 begins to move away from the fixed block 1. Through the connecting strip 18, the U-shaped frame 8 can be pulled to move towards the fixed block 1, thereby driving the support rod 25 to move. Since the support rod 25 is also limited by the inclined frame 4, when the support rod 25 moves towards the fixed block 1, it can drive the support rod 25 to move upward. At this time, the support rod 25 can support the tilting plate 6 to tilt upward from the horizontal state. The tilting plate 6 is used to guide the ocean current flowing towards the submarine cable, avoiding the ocean current from impacting the submarine cable and improving the stability of the submarine cable anchoring.

[0040] The anchoring device is arranged alternately and equidistantly along the direction of the submarine cable. It can buffer the currents that are directed towards the submarine cable, including the impacts from the diagonal direction. The impacts from the currents on the submarine cable cannot cause the cable to swing left and right, so it will not have an impact effect on the cable connection.

[0041] This anchoring device can greatly enhance the stability of submarine cable anchoring, reduce the impact of ocean currents on the submarine cable, and multiple sets of anchoring devices form a powerful submarine cable connection system, which can transform instantaneous impact force from "rigid transmission" to "flexible buffering", significantly reducing the peak stress on the submarine cable.

[0042] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A submarine cable anchoring device for submarine cable laying construction, comprising a fixing block (1), characterized in that, The fixed block (1) is connected with a moving table (19) on one side, a hinged frame (10) is connected to the fixed block (1), a diagonal rod (11) is rotatably connected to the hinged frame (10), a sliding ring (12) and a fixed ring (17) are connected to the diagonal rod (11), the sliding ring (12) is slidably sleeved on the diagonal rod (11), and the fixed ring (17) is fixedly connected to the upper end of the inclined diagonal rod (11); a spring (15) is connected between the sliding ring (12) and the fixed ring (17), a connecting sleeve (13) is connected to the outer side of the sliding ring (12), a bolt (14) is connected to the connecting sleeve (13), the connecting sleeve (13) is sleeved and fixed on the submarine cable, and the connecting sleeve (13) is connected firmly through the bolt (14); when connected, the submarine cable is perpendicular to the diagonal rod (11). The other end of the diagonal rod (11) is rotatably connected with a hinged frame (20), the hinged frame (20) is connected with a lifting column (21) below, and the lifting column (21) is connected with an anchor rod (26) below; when the lifting column (21) moves downward, the lower end of the anchor rod (26) can be inserted into the seabed, a spring (24) is connected between the lifting column (21) and the moving table (19), the anchor rod (26) penetrates the moving table (19), and a barb (28) is connected to the lower end of the anchor rod (26); a force relieving mechanism is arranged on the side, away from the moving table (19), of the fixed block (1) to reduce the impact of seawater flow on the submarine cable.

2. The submarine cable anchoring device for submarine cable laying construction according to claim 1, characterized in that, The fixed block (1) is connected with a sliding rail (2) on one side, and the moving table (19) is slidably connected to the sliding rail (2).

3. The submarine cable anchoring device for submarine cable laying construction according to claim 1, characterized in that, A limiting rod (16) is connected to the sliding ring (12), and the other end of the limiting rod (16) penetrates and is connected to the fixed ring (17).

4. The submarine cable anchoring device for submarine cable laying construction according to claim 1, characterized in that, A vertical rod (22) is connected to the moving table (19), a top frame (23) is connected to the upper end of the vertical rod (22), a lifting plate (30) is slidably connected to the vertical rod (22), and the lifting plate (30) is fixedly connected to the lifting column (21).

5. The submarine cable anchoring device for submarine cable laying construction according to claim 1, characterized in that, A pointed end (27) is connected to the lower end of the anchor rod (26), and the barb (28) is rotatably connected to the pointed end (27), and the barb (28) abuts against the pointed end (27) on one side.

6. The submarine cable anchoring device for submarine cable laying construction according to claim 1, characterized in that, The force relieving mechanism comprises a turnover plate (6), the turnover plate (6) is rotatably connected to the side, away from the moving table (19), of the fixed block (1), the moving table (19) is connected with a U-shaped frame (8) through a connecting strip (18), a supporting rod (25) is slidably connected to the U-shaped frame (8), an inclined frame (4) is connected to one side of the fixed block (1), the supporting rod (25) is slidably connected to the inclined frame (4), the supporting rod (25) abuts against the lower surface of the turnover plate (6), a sliding groove (7) is formed in the turnover plate (6), and the U-shaped frame (8) is arranged in the sliding groove (7).

7. A submarine cable anchoring device for submarine cable laying construction according to claim 6, characterized in that, A connecting groove (29) is formed in the fixed block (1), and the connecting strip (18) is slidably connected to the connecting groove (29).

8. The submarine cable anchoring device for submarine cable laying construction according to claim 6, characterized in that, The fixed block (1) is connected with a connecting frame (3), the inclined frame (4) is fixedly connected on the connecting frame (3), the connecting frame (3) is connected with a rotating shaft (5), the turnover plate (6) is rotatably connected on the rotating shaft (5), and the supporting rods (25) are connected with limiting ends (9) at both ends.

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