Movable assembled direct current submarine cable installation bracket

Abstract

The application discloses a movable assembled direct-current submarine cable installation bracket, which comprises a guide rail assembly, a stepped support frame and an anti-overturning outer support assembly. The guide rail assembly is installed on the stepped support frame, and the guide rail assembly is provided with an integrated inclined section and a straight section. The stepped support frame is symmetrically provided with the anti-overturning outer support assembly on both sides along the length direction. The stepped support frame and the guide rail assembly are arranged, and the traditional manual lifting construction mode is replaced. The cable roller on the guide rail assembly converts the sliding friction in the moving process of the submarine cable into rolling friction, significantly reduces the traction resistance, greatly reduces the labor intensity of the construction personnel, effectively shortens the time length of the submarine cable leading operation, and improves the overall construction progress.

Description

Technical Field

[0001] This invention relates to the technical field of submarine cable support, and in particular to a movable, modular DC submarine cable installation bracket. Background Technology

[0002] In offshore wind power projects, offshore substation platforms are the core hubs for power collection. With the rapid development of offshore substations, the overall size and internal structure height of the platforms are constantly increasing, requiring submarine cables to be laid on the high-altitude cable trays of the platforms over increasingly longer distances.

[0003] Currently, the mainstream construction method for raising DC submarine cables from the deck to the high-altitude cable tray relies on manual labor combined with traditional machinery to lift them onto the cable tray in sections. This traditional construction method has the following drawbacks: DC submarine cables have high rigidity and a large allowable bending radius. Lifting them from a low position to a 3-4 meter high support frame using only manual labor or simple temporary lifting points is extremely labor-intensive, time-consuming, and labor-intensive, severely slowing down the overall construction progress. Furthermore, the traditional lifting method lacks a continuous and smooth guiding structure, making it easy for the submarine cable to rub against the edges of the high-altitude support frame or temporary steel structures during the lifting process, resulting in damage to the cable's outer sheath. Summary of the Invention

[0004] In view of this, in order to solve the above problems, the purpose of this invention is to provide a movable, modular DC submarine cable installation bracket, comprising: Guide rail assembly, stepped support frame, anti-tipping external support assembly; The guide rail assembly is installed on the stepped support frame, and the guide rail assembly is configured as an integrally connected inclined section and straight section; The anti-overturning external support components are symmetrically assembled on both sides of the stepped support frame along its length.

[0005] The aforementioned movable modular DC submarine cable installation bracket includes a guide rail assembly comprising: guide rail beams and cable rollers; two guide rail beams are symmetrically installed on the stepped support frame, and the two guide rail beams are provided with a plurality of mounting holes, and a plurality of cable rollers are assembled one-to-one between the corresponding mounting holes of the two guide rail beams via rotating shafts.

[0006] The aforementioned movable and modular DC submarine cable installation bracket includes a stepped support frame comprising: columns and crossbars; a plurality of columns and a plurality of crossbars are spliced ​​and fixed together to form a stepped support frame structure.

[0007] The aforementioned movable and modular DC submarine cable installation bracket further includes: a plurality of first casters; each of the columns is equipped with a first flange at its bottom end, and the first casters are correspondingly installed on the lower end face of the first flange.

[0008] The aforementioned movable modular DC submarine cable installation bracket includes an anti-overturning external support assembly comprising: a support frame and a connecting frame; one end of the support frame is detachably fixed to the outside of any of the columns via a first connector, and one end of the connecting frame is detachably fixed to the other end of the support frame via a second connector.

[0009] The aforementioned movable, modular DC submarine cable installation bracket is wherein the connecting frame is inclined.

[0010] The aforementioned movable, modular DC submarine cable installation bracket has an L-shaped support frame, with a second flange installed at the lower end of the corner of the support frame, and a second caster wheel installed at the lower end of the second flange.

[0011] In the aforementioned movable and modular DC submarine cable mounting bracket, each of the guide rail beams has a mounting portion extending from its lower end, and the mounting portion has a lifting lug on its side wall away from the guide rail beam.

[0012] In the aforementioned movable and modular DC submarine cable installation bracket, the outer circumferential surface of each cable roller is recessed inward to form a traction groove, and the traction groove is arc-shaped.

[0013] In the aforementioned movable modular DC submarine cable installation bracket, the column and the crossbar are connected by a third connector.

[0014] The positive effects of the above technical solution compared with the existing technology are: 1. This invention replaces the traditional manual lifting construction method by setting up a stepped support frame and guide rail assembly. The cable rollers on the guide rail assembly transform the sliding friction during the movement of the submarine cable into rolling friction, significantly reducing traction resistance. This not only greatly reduces the labor intensity of construction workers but also effectively shortens the time for the submarine cable to be pulled up, thus improving the overall construction progress.

[0015] 2. The guide rail assembly is designed as an integrated inclined section and a straight section, providing a continuous and smooth guiding path for the submarine cable to be led from the deck to the high-level cable tray. Combined with the rolling support of the cable rollers, this prevents the submarine cable from directly scraping against the edge of the tray or temporary steel structure during the lead-up process, effectively preventing damage to the outer sheath of the submarine cable and ensuring installation quality.

[0016] 3. By symmetrically assembling anti-overturning external support components on both sides of the stepped support frame, the lateral support span at the bottom of the device is significantly increased, forming a stable triangular or trapezoidal support structure. This design effectively decomposes lateral overturning moments, preventing the device from tipping over when carrying heavy submarine cables and ensuring the safety of the construction process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a movable, modular DC submarine cable installation bracket according to the present invention.

[0018] Figure 2 This is a side view of a movable, modular DC submarine cable mounting bracket according to the present invention.

[0019] Figure 3 This is a front view of a movable, modular DC submarine cable mounting bracket according to the present invention.

[0020] Figure 4 This is a top view of a movable, modular DC submarine cable mounting bracket according to the present invention.

[0021] 1. Guide rail assembly; 2. Stepped support frame; 3. Anti-tipping external support assembly; 4. Inclined section; 5. Straight section; 6. Guide rail beam; 7. Cable roller; 8. Column; 9. Crossbar; 10. First flange; 11. First caster wheel; 12. Support frame; 13. Connecting frame; 14. Lifting lug; 15. Second flange; 16. Second caster wheel; 17. Mounting part; 18. First connector; 19. Second connector; 20. Third connector. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0023] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0024] like Figures 1 to 4 As shown, a preferred embodiment of a movable modular DC submarine cable installation bracket is illustrated, which includes: a guide rail assembly 1, a stepped support frame 2, and an anti-tipping external support assembly 3.

[0025] The guide rail assembly 1 is installed on the stepped support frame 2. The guide rail assembly 1 is configured as an integrally connected inclined section 4 and straight section 5. The stepped support frame 2 is symmetrically equipped with anti-overturning external support assemblies 3 on both sides along its length direction.

[0026] In practical use, the stepped support frame 2 serves as the skeleton of the entire device, supporting the guide rail assembly 1 and raising its height. To ensure the stability of the device when carrying heavy submarine cables and prevent tipping, the submarine cable can be guided along the inclined section 4 and the straight section 5, ensuring a smooth transition and safe and stable transport of the cable. Anti-tipping outer support assemblies 3 are symmetrically mounted on both sides of the stepped support frame 2 along its length. These anti-tipping outer support assemblies 3, by extending outwards, significantly increase the lateral support span at the bottom of the device.

[0027] In addition to the above, the present invention also has the following embodiments: Furthermore, a movable, modular DC submarine cable installation bracket includes a guide rail assembly 1 comprising: guide rail beams 6 and cable rollers 7. Two guide rail beams 6 are symmetrically mounted on a stepped support frame 2, and each guide rail beam 6 has several mounting holes. Several cable rollers 7 are fitted one-to-one between corresponding mounting holes on the two guide rail beams 6 via a rotating shaft. Specifically, the rotating shaft spans the two guide rail beams 6, and the cable rollers 7 are mounted on the rotating shaft, thereby achieving free rotation relative to the guide rail beams 6. When the submarine cable moves on the guide rail assembly 1, the cable rollers 7 roll accordingly, converting sliding friction into rolling friction, greatly reducing traction resistance.

[0028] Furthermore, a movable, modular DC submarine cable installation bracket includes a stepped support frame 2 comprising: uprights 8 and crossbars 9; several uprights 8 and several crossbars 9 are spliced ​​and fixed together to form a stepped support frame structure. Specifically, through this combination of uprights 8 and crossbars 9, a support structure with sloping and horizontal sections can be flexibly constructed according to the height difference between the deck of the offshore substation and the high-altitude cable tray. The stepped design is not only stable but also adapts to the spatial path requirements of the submarine cable as it is led from a lower to a higher location. Moreover, the stepped support frame 2, assembled from uprights 8 and crossbars 9, can have its width, length, height, and tilt position adjusted according to actual usage, making it suitable for various situations.

[0029] Furthermore, a movable, modular DC submarine cable installation bracket further includes: a plurality of first casters 11; each column 8 has a first flange 10 installed at its bottom end, and the first casters 11 are correspondingly installed on the lower end face of the first flange 10. Specifically, by setting the first casters 11, workers can easily push the entire bracket to move on the deck, quickly aligning it with the path for laying the submarine cable. When it reaches the designated position, the casters can be locked by a braking mechanism, such as brake pads, to prevent displacement during operation.

[0030] Furthermore, a movable, modular DC submarine cable installation bracket includes an anti-overturning external support assembly 3 comprising: a support frame 12 and a connecting frame 13. One end of the support frame 12 is detachably fixed to the outside of any column 8 via a first connector 18, and one end of the connecting frame 13 is detachably fixed to the other end of the support frame 12 via a second connector 19. Specifically, an anti-overturning external support assembly 3 is provided to address the potential lateral overturning risk that may occur when the device is under high-altitude load. The first connector 18 is preferably a split right-angle clamp or bolt, detachably fixed to the outside of any column 8. This detachable design allows the support frame 12 to be installed at the location most in need of reinforcement, such as a column 8 on a slope, according to actual needs. One end of the connecting frame 13 is detachably fixed to the other end of the support frame 12 via the second connector 19. The connecting frame 13 extends outward and grounds or contacts the deck, thereby forming an outwardly opening stable support structure.

[0031] Furthermore, a movable, modular DC submarine cable installation bracket is provided, wherein the connecting frame 13 is inclined and connects with the support frame 12 at an incline to form a stable support structure. Specifically, the connecting frame 13 and the support frame 12 are inclined to form a stable support structure resembling a triangle or trapezoid. This geometric structure can effectively decompose the lateral overturning moment into pressure and tension along the axial direction of the connecting frame 13, thereby greatly improving the device's anti-overturning capability in the lateral direction and ensuring that the equipment will not tip over during submarine cable traction.

[0032] Furthermore, a movable, modular DC submarine cable installation bracket is provided, wherein the support frame 12 is L-shaped, and a second flange 15 is installed at the lower end of the corner of the support frame 12, and a second caster wheel 16 is installed at the lower end of the second flange 15. Specifically, the L-shaped support frame 12 can better cover the column 8 and provide an outwardly extending lever arm. The second caster wheel 16 at the bottom not only supports the outward weight, but also allows the entire anti-tipping assembly to roll smoothly when the device moves, without generating additional drag resistance.

[0033] Furthermore, a movable, modular DC submarine cable installation bracket is provided, wherein each guide rail beam 6 has an installation part 17 extending from its lower end, and the side wall of the installation part 17 away from the guide rail beam 6 is provided with a lifting lug 14. Specifically, in order to cooperate with mechanized equipment such as winches for traction, each guide rail beam 6 has an installation part 17 extending from its lower end. The installation part 17 is located at the foremost end of the guide rail beam 6 (i.e., the starting end of the submarine cable going uphill), and the side wall of the installation part 17 away from the guide rail beam 6 is provided with a lifting lug 14. The lifting lug 14 has a pin hole for attaching the wire rope sling of the platform winch. By setting the lifting lug 14 at the front end of the guide rail beam 6, the traction force can be directly applied to the main axis direction of the guide rail beam 6, avoiding additional shear bending moment on the fragile support frame and ensuring the rigidity and safety of the traction process.

[0034] Furthermore, a movable, modular DC submarine cable installation bracket is provided, wherein the outer circumferential surface of each cable roller 7 is recessed inward to form a traction groove, and the traction groove is arc-shaped. Specifically, the traction groove is arc-shaped, and the radius of the arc matches the radius of the submarine cable. When the submarine cable is placed on the roller, the arc-shaped groove can hold the submarine cable, playing a role in automatically centering and limiting the cable, preventing it from rolling left or right or slipping off the side during traction.

[0035] Furthermore, a movable, modular DC submarine cable installation bracket is provided, wherein the upright 8 and the crossbar 9 are connected by a third connector 20. Specifically, the third connector 20 is preferably a split right-angle clamp fastener. During installation, the upright 8 and the crossbar 9 are joined at a right angle, and then the connection is covered by the clamp fastener and locked with bolts. This connection method eliminates the need for welding, providing extremely high safety in construction environments with extremely high fire protection requirements, such as at sea, while also greatly improving the efficiency of on-site assembly and disassembly.

[0036] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A movable, modular DC submarine cable installation bracket, characterized in that, include: Guide rail assembly, stepped support frame, anti-tipping external support assembly; The guide rail assembly is installed on the stepped support frame, and the guide rail assembly is configured as an integrally connected inclined section and straight section; The anti-overturning external support components are symmetrically assembled on both sides of the stepped support frame along its length.

2. The movable, modular DC submarine cable installation bracket according to claim 1, characterized in that, The guide rail assembly includes: guide rail beams and cable rollers; two guide rail beams are symmetrically installed on the stepped support frame, and the two guide rail beams are provided with a plurality of mounting holes, and a plurality of cable rollers are assembled one-to-one between the corresponding mounting holes of the two guide rail beams through rotating shafts.

3. A movable, modular DC submarine cable installation bracket according to claim 1, characterized in that, The stepped support frame includes: columns and crossbars; several columns and several crossbars are spliced ​​and fixed together to form a stepped support frame structure.

4. A movable, modular DC submarine cable installation bracket according to claim 3, characterized in that, Also includes: A plurality of first casters; each of the columns is fitted with a first flange at its bottom end, and the first casters are fitted onto the lower end face of the first flange.

5. A movable, modular DC submarine cable installation bracket according to claim 3, characterized in that, The anti-overturning external support assembly includes: a support frame and a connecting frame; one end of the support frame is detachably fixed to the outside of any of the columns via a first connector, and one end of the connecting frame is detachably fixed to the other end of the support frame via a second connector.

6. A movable, modular DC submarine cable installation bracket according to claim 5, characterized in that, The connecting frame is tilted.

7. A movable, modular DC submarine cable installation bracket according to claim 5, characterized in that, The support frame is L-shaped, and a second flange is installed at the lower end of the corner of the support frame, and a second caster is installed at the lower end of the second flange.

8. A movable, modular DC submarine cable installation bracket according to claim 2, characterized in that, Each of the guide rail beams has a mounting portion extending from its lower end, and the mounting portion has a lifting lug on its side wall away from the guide rail beam.

9. A movable, modular DC submarine cable installation bracket according to claim 2, characterized in that, Each of the cable rollers has an inwardly recessed circumferential surface forming a traction groove, which is arc-shaped.

10. A movable, modular DC submarine cable installation bracket according to claim 3, characterized in that, The column and the crossbar are connected by a third connector.

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