Submarine cable clamping device with self-locking function back to oil and gas platform

Abstract

The invention discloses a submarine cable clamping device with a self-locking function back to an oil and gas platform, which comprises a hoop, a submarine cable clamping assembly, an overturning driving mechanism and a self-locking mechanism, and is characterized in that the submarine cable clamping assembly comprises a fixed clamping part and a movable clamping part which are movably connected through a hinge, and one side of the hoop is provided with a cantilever connected with the fixed clamping part; a first supporting lug is arranged on the outer side of the movable clamping part, the self-locking mechanism comprises a limiting plate and a rack, a second supporting lug corresponding to the first supporting lug is arranged on the hoop or the cantilever, the overturning driving mechanism is detachably arranged between the first supporting lug and the second supporting lug, and the rack is arranged on the side, opposite to the movable clamping part, of the cantilever. The limiting plate is arranged on the outer side of the movable clamping part or the first supporting lug in a turnover mode, the tail end of the limiting plate extends into the tooth groove in the rack, the submarine cable clamping assembly is driven by the turnover driving mechanism to be closed, submarine cables are clamped and protected, operation is rapid and labor-saving, and adaptability to the outer diameter of the submarine cables and clamping reliability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable clamping, and particularly to a submarine cable clamping device with a self-locking function against an oil and gas platform. Background Art

[0002] When information is transmitted between oil and gas platforms and between an oil and gas platform and the land through submarine cables, it is usually necessary to land the submarine cable on the platform through a steel pipe (usually called a J-type pipe or an I-type pipe) to prevent the influence of factors such as waves and ocean currents on the submarine cable, thereby extending the working life of the submarine cable. However, many oil and gas platforms are not pre-configured with steel pipes during design, or the number of steel pipes is insufficient to meet the landing requirements of the submarine cable.

[0003] To solve this problem, some oil and gas platforms are equipped with clamping devices for submarine cables to clamp and fix the submarine cables. However, the construction conditions on the oil and gas platforms are harsh. The existing submarine cable clamping devices usually require manual tightening of multiple screws, which is cumbersome, laborious during the screw tightening process, has limited operating space, takes a long time, has poor adaptability to the outer diameter of the submarine cable, and poor clamping reliability, and needs to be improved. Summary of the Invention

[0004] The main technical problem to be solved by the present invention is to provide a submarine cable clamping device with a self-locking function against an oil and gas platform to clamp and fix the submarine cable when it lands on the oil and gas platform, and improve the adaptability to the outer diameter of the submarine cable, construction efficiency, and clamping reliability.

[0005] To solve the above technical problem, a technical solution adopted by the present invention is: to provide a submarine cable clamping device with a self-locking function against an oil and gas platform, including: a hoop, a submarine cable clamping assembly, a flipping drive mechanism, and a self-locking mechanism. The submarine cable clamping assembly includes a fixed clamping part and a movable clamping part that are movably connected by a hinge. The fixed clamping part and the movable clamping part are closed to clamp the submarine cable. The fixed clamping part is arranged on one side of the hoop. One side of the hoop is provided with a cantilever connecting the fixed clamping part. A first ear is arranged on the outer side of the movable clamping part. The self-locking mechanism includes a limiting plate and a rack. A second ear corresponding to the first ear is arranged on the hoop or the cantilever. The flipping drive mechanism is detachably arranged between the first ear and the second ear. The rack is arranged on the side of the cantilever opposite to the movable clamping part and points to the movable clamping part. The limiting plate is flipably arranged on the outer side of the movable clamping part or the first ear. The end of the limiting plate extends into the tooth groove on the rack to limit the outward flip of the movable clamping part to achieve self-locking after the submarine cable is clamped. The fixed clamping part is provided with first arc-shaped clamping claws pointing to the movable clamping part at upper and lower intervals. The movable clamping part is provided with second arc-shaped clamping claws that are cross-distributed with the first arc-shaped clamping claws at upper and lower intervals.

[0006] In a preferred embodiment of the present invention, the fixed clamping part is vertically fixed at the end of the cantilever.

[0007] In a preferred embodiment of the present invention, a first pin shaft corresponding to the fixed flipping drive mechanism is inserted on the first ear, and a second pin shaft corresponding to the fixed flipping drive mechanism is inserted on the second ear.

[0008] In a preferred embodiment of the present invention, the flipping drive mechanism adopts an electric telescopic rod, a cylinder or a hydraulic cylinder.

[0009] In a preferred embodiment of the present invention, a third pin shaft for supporting and limiting the flipping of the limiting plate is arranged on the first ear, and a torsion spring for driving the limiting plate to flip towards the direction of the rack is arranged on the third pin shaft.

[0010] In a preferred embodiment of the present invention, a tension spring is arranged between the limiting plate and the cantilever.

[0011] In a preferred embodiment of the present invention, the width of the first arc-shaped clamping jaw is smaller than the gap between two adjacent second arc-shaped clamping jaws above and below.

[0012] In a preferred embodiment of the present invention, the width of the second arc-shaped clamping jaw is smaller than the gap between two adjacent first arc-shaped clamping jaws above and below.

[0013] The beneficial effects of the present invention are as follows: A submarine cable clamping device with a self-locking function against an oil and gas platform pointed out by the present invention can quickly install the hoop on the cross beam or pile leg of the oil and gas platform, with a stable structure. The flipping drive mechanism is used to drive the submarine cable clamping assembly to close, forming clamping and protection of the submarine cable, effectively preventing the submarine cable from being affected by alternating loads under the action of ocean currents, thereby prolonging the service life of the submarine cable. The operation is fast and labor-saving, and the construction efficiency is high. The cross-matching of the first arc-shaped clamping jaw and the second arc-shaped clamping jaw improves the adaptability to the outer diameter of the submarine cable and the clamping reliability, and uses the self-locking mechanism to lock the submarine cable clamping assembly after closing to avoid loosening. The flipping drive mechanism can also be disassembled and reused, reducing costs and improving the convenience of later maintenance, effectively replacing the original steel pipe to realize the rapid landing of the submarine cable on the oil and gas platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where: Figure 1 is a schematic structural diagram of a preferred embodiment of a submarine cable clamping device with a self-locking function against an oil and gas platform of the present invention; Figure 2 is Figure 1 the right view of; Figure 3 is Figure 1 the perspective view of (the submarine cable clamping assembly is open); Figure 4 is Figure 3 the structural schematic diagram after the submarine cable clamping assembly in Figure 5 is Figure 3 the structural schematic diagram of the submarine cable clamping assembly in Figure 6 is the structural schematic diagram of a preferred embodiment after the disassembly of the flipping drive mechanism in a submarine cable clamping device with a self-locking function and relying on an oil and gas platform according to the present invention. Specific embodiments

[0015] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0016] Please refer to Figures 1 to 6 , the embodiments of the present invention include: As Figure 1 and Figure 2 shown, a submarine cable clamping device with a self-locking function and relying on an oil and gas platform includes: a hoop 1, a submarine cable clamping assembly 3, a flipping drive mechanism 5, and a self-locking mechanism 4. The submarine cable clamping assembly 3 includes a fixed clamping part 31 and a movable clamping part 32 that are movably connected through a hinge 33. The fixed clamping part 31 and the movable clamping part 32 are closed to clamp the submarine cable.

[0017] The fixed clamping part 31 is arranged on one side of the hoop 1. In this embodiment, the hoop 1 can be quickly installed on the cross beam or pile leg of the oil and gas platform, and the structure is stable. One side of the hoop 1 is provided with a cantilever 2 connecting the fixed clamping part 31. As Figure 3 shown, the fixed clamping part 31 is vertically fixed at the end of the cantilever 2 and can be fixed by welding, and the structure is firm.

[0018] A first ear 6 is arranged outside the movable clamping part 32, and a second ear 7 corresponding to the first ear 6 is arranged on the hoop 1 or the cantilever 2. The flipping drive mechanism 5 is detachably arranged between the first ear 6 and the second ear 7. In this embodiment, the flipping drive mechanism 5 can adopt an electric telescopic rod, a cylinder, or a hydraulic cylinder to drive the flipping of the movable clamping part 32. As Figure 3 and Figure 4As shown, the closing or opening action of the submarine cable clamping assembly 3 is realized. When the flipping drive mechanism 5 adopts a cylinder, the closing force of the submarine cable clamping assembly 3 can also be determined by controlling the rated air pressure of the cylinder to ensure the clamping stability of the submarine cable.

[0019] To realize the locking after the submarine cable clamping assembly 3 is closed, a self-locking mechanism is required, such as Figure 1 As shown, the self-locking mechanism includes a limit plate 42 and a rack 41. The rack 41 is arranged on one side of the cantilever 2 opposite to the movable clamping part 32 and points to the movable clamping part 32. The rack 41 can be welded or fixed to one side of the cantilever 2 by screws, with stable structure.

[0020] The limit plate 42 is rotatably arranged outside the movable clamping part 32 or on the first ear 6. In this embodiment, a third pin shaft 8 for supporting the flipping of the limit plate 42 is arranged on the first ear 6, as Figure 3 As shown, with high flexibility. The end of the limit plate 42 extends into the tooth groove on the rack 41 to limit the outward turn of the movable clamping part 32 and realize self-locking after the submarine cable is clamped.

[0021] In addition, to improve the self-locking stability, a torsion spring 9 for driving the limit plate 42 to flip towards the direction where the rack 41 is located is arranged on the third pin shaft 8. The torsion spring 9 elastically maintains the flipping of the limit plate 42 towards the direction where the rack 41 is located to ensure the stable lapping of the limit plate 42 and the rack 41. After the submarine cable is clamped stably, the flipping drive mechanism 5 can be removed for repeated use, as Figure 6 As shown, the use cost is reduced.

[0022] The flipping drive mechanism 5 is convenient for disassembly and assembly. A first pin shaft 11 for fixing the corresponding end of the flipping drive mechanism 5 is inserted on the first ear 6, and a second pin shaft 10 for fixing the corresponding end of the flipping drive mechanism 5 is inserted on the second ear 7. The flipping drive mechanism 5 is fixed through the first pin shaft 11 and the second pin shaft 10. Removing the first pin shaft 11 and the second pin shaft 1 enables the disassembly of the flipping drive mechanism 5.

[0023] In another embodiment, a tension spring can be arranged between the limit plate 42 and the cantilever 2. The tension spring elastically pulls the limit plate 42 to flip towards the direction where the rack 41 is located, which can also ensure the stable lapping of the limit plate 42 and the rack 41, with good seismic resistance effect and avoiding loosening.

[0024] In order to avoid the loosening of the submarine cable after clamping, in this embodiment, the fixed clamping portion 31 is provided with first arc-shaped clamping jaws 35 pointing to the movable clamping portion 32 at upper and lower intervals, and the movable clamping portion 32 is provided with second arc-shaped clamping jaws 34 cross-distributed with the first arc-shaped clamping jaws 35 at upper and lower intervals. During the closing process of the first arc-shaped clamping jaws 35 and the second arc-shaped clamping jaws 34, they cross each other, which not only improves the adaptability to the outer diameter of the submarine cable, but also generates an embedding groove on the outer sheath surface of the submarine cable to avoid slippage and improve the clamping reliability.

[0025] As Figure 2 and Figure 5 shown, the width of the first arc-shaped clamping jaw 35 is smaller than the gap between two adjacent second arc-shaped clamping jaws 34 above and below, and the width of the second arc-shaped clamping jaw 34 is smaller than the gap between two adjacent first arc-shaped clamping jaws 35 above and below. During the closing process of the first arc-shaped clamping jaws 35 and the second arc-shaped clamping jaws 34, elastic extrusion of the outer sheath of the submarine cable is carried out, and the local elastic deformation of the outer sheath of the submarine cable is squeezed into the gap between the first arc-shaped clamping jaw 35 and the second arc-shaped clamping jaw 34, further improving the anti-slip effect and having high reliability.

[0026] In summary, a submarine cable clamping device with a self-locking function against an oil and gas platform pointed out by the present invention can replace traditional expensive steel pipes through the arrangement of a plurality of submarine cable clamping devices, greatly reducing the manufacturing and maintenance costs, being convenient to operate, having high construction efficiency, and being able to be adjusted arbitrarily on the cross beam of the oil and gas platform according to the needs of the submarine cable landing on the oil and gas platform, further improving the construction convenience.

[0027] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A submarine cable clamping device with a self-locking function and relying on an oil and gas platform, characterized in that, Including: A hoop, a submarine cable clamping assembly, a flipping drive mechanism and a self-locking mechanism. The submarine cable clamping assembly includes a fixed clamping part and a movable clamping part that are movably connected by a hinge. The fixed clamping part and the movable clamping part are closed to clamp the submarine cable. The fixed clamping part is arranged on one side of the hoop. There is a cantilever connecting the fixed clamping part on one side of the hoop. There is a first ear on the outside of the movable clamping part. The self-locking mechanism includes a limit plate and a rack. There is a second ear corresponding to the first ear on the hoop or the cantilever. The flipping drive mechanism is detachably arranged between the first ear and the second ear. The rack is arranged on the side of the cantilever opposite to the movable clamping part and points to the movable clamping part. The limit plate is flipably arranged on the outside of the movable clamping part or the first ear. The end of the limit plate extends into the tooth groove on the rack to limit the outward flip of the movable clamping part and realize self-locking after the submarine cable is clamped. The fixed clamping part is provided with first arc-shaped clamping claws pointing to the movable clamping part at upper and lower intervals. The movable clamping part is provided with second arc-shaped clamping claws that are cross-distributed with the first arc-shaped clamping claws at upper and lower intervals.

2. The submarine cable clamping device with a self-locking function for the backrest oil and gas platform according to claim 1, characterized in that, The fixed clamping part is vertically fixed at the end of the cantilever.

3. The submarine cable clamping device with a self-locking function and against an oil and gas platform according to claim 1, characterized in that, A first pin shaft for fixing the corresponding end of the flipping drive mechanism is inserted on the first ear, and a second pin shaft for fixing the corresponding end of the flipping drive mechanism is inserted on the second ear.

4. The submarine cable clamping device with a self-locking function and backed against an oil and gas platform according to claim 1, characterized in that The flipping drive mechanism adopts an electric telescopic rod, a cylinder or a hydraulic cylinder.

5. The submarine cable clamping device with a self-locking function and against an oil and gas platform according to claim 1, characterized in that, A third pin shaft for supporting the flip of the limit plate is arranged on the first ear, and a torsion spring for driving the limit plate to flip towards the direction where the rack is located is arranged on the third pin shaft.

6. The submarine cable clamping device with a self-locking function and against an oil and gas platform according to claim 1, characterized in that, A tension spring is arranged between the limit plate and the cantilever.

7. The submarine cable clamping device with a self-locking function and against an oil and gas platform according to claim 1, characterized in that, The width of the first arc-shaped clamping claw is smaller than the gap between two adjacent second arc-shaped clamping claws above and below.

8. The submarine cable clamping device with a self-locking function on the back against the oil and gas platform according to claim 1, wherein, The width of the second arc-shaped clamping claw is smaller than the gap between two adjacent first arc-shaped clamping claws above and below.

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