An underwater cable lifting device and a cable maintenance boat

Abstract

This utility model relates to the field of seismic acquisition cable maintenance technology for deep-sea geophysical survey vessels, specifically, to an underwater cable lifting device and a cable maintenance boat. The underwater cable lifting device includes a lifting section with a lifting section on one side. The lifting section includes a range-extending component, which comprises a first range-extending shell and a second range-extending shell that slide together. A limiting plate is provided at one end of the first range-extending shell, and the second range-extending shell has a groove in which a sliding plate slides. An auxiliary lifting mechanism is provided at the sliding plate, which drives the sliding plate away from the limiting plate when the second range-extending shell moves away from the limiting plate. A detachable support plate is provided on the side of the sliding plate away from the first range-extending shell. The above-mentioned underwater cable lifting device, through the auxiliary lifting mechanism and the support plate, lifts the underwater cable out of the water, thereby facilitating maintenance and significantly improving the efficiency of underwater cable maintenance.

Description

Technical Field

[0001] This utility model relates to the field of seismic acquisition cable maintenance technology for deep-sea geophysical exploration vessels, specifically to an underwater cable lifting device and a cable maintenance boat. Background Technology

[0002] The successful development of the deep-sea geophysical exploration vessel for offshore oil and gas has greatly enhanced China's marine engineering exploration capabilities, increasing deep-sea exploration depth from 500 meters to 3,000 meters. The social benefits are profound and enormous, marking China's successful entry into the top field of deep-sea exploration equipment for marine engineering. Therefore, the maintenance and repair of the seismic acquisition cables used in conjunction with the vessel are particularly crucial.

[0003] Traditional underwater cable inspection and fault location technologies mainly rely on remotely operated underwater vehicles (ROVs) and autonomous underwater vehicles (AUVs). However, these devices are usually limited by battery life, resulting in short working time for long-term, large-scale tasks, which affects the overall maintenance efficiency. Utility Model Content

[0004] This utility model provides an underwater cable lifting device and a cable maintenance boat, which can overcome some or all the defects of the prior art.

[0005] According to the present invention, an underwater cable lifting device includes a lifting part, a lifting part is provided on one side of the lifting part, the lifting part includes a range extender component, the range extender component includes a first range extender housing and a second range extender housing that are slidably fitted, a limiting plate is provided at one end of the first range extender housing, the second range extender housing has a sliding groove, a sliding plate is slidably provided in the sliding groove, an auxiliary lifting mechanism is provided at the sliding plate, the auxiliary lifting mechanism is used to drive the sliding plate away from the limiting plate when the second range extender housing is away from the limiting plate, and a support plate is detachably provided on the side of the sliding plate away from the first range extender housing.

[0006] In a preferred embodiment of this utility model, the lifting part includes a fixed bracket, with a first connecting plate and a second connecting plate respectively hinged to both ends of the fixed bracket. A first cooperating bracket and a second cooperating bracket are provided at intervals on the side of the first range extender housing near the lifting part. The first cooperating bracket is hinged to the first connecting plate, and the second cooperating bracket is hinged to the second connecting plate.

[0007] In a preferred embodiment of this utility model, a first hydraulic cylinder is further provided at the fixed bracket, and the two ends of the first hydraulic cylinder are respectively hinged to the fixed bracket and the second cooperating bracket.

[0008] In a preferred embodiment of this utility model, a second hydraulic cylinder is provided at the first range extender housing. One end of the second hydraulic cylinder is hinged to the end of the first range extender housing near the limiting plate, and the other end is hinged to the end of the second range extender housing away from the limiting plate.

[0009] In a preferred embodiment of this utility model, the auxiliary lifting mechanism includes a first sprocket and a second sprocket spaced apart at the second range extender housing, a chain is provided between the first sprocket and the second sprocket, a first chain limiting bracket is fixedly provided on the side wall of the first range extender housing, the first chain limiting bracket is fixedly engaged with the chain, and a second chain limiting bracket is provided at the slide plate, the second chain limiting bracket is fixedly engaged with the chain.

[0010] In a preferred embodiment of this utility model, the first chain limiting bracket has at least one first limiting tooth, which is engaged with the chain; the second chain limiting bracket has at least one second limiting tooth, which is engaged with the chain.

[0011] In a preferred embodiment of this utility model, a mounting hole is provided through the slide plate, and a mounting shaft is formed on the side of the support plate near the slide plate. The mounting shaft is used to cooperate with the mounting hole, and a limiting buckle is provided at the slide plate for rotation. The limiting buckle is used to engage with the mounting shaft.

[0012] In a preferred embodiment of this utility model, a limiting block is provided on the side of the limiting buckle near the mounting shaft, and a limiting groove is provided at the mounting shaft. The limiting block is used to engage with the limiting groove.

[0013] In a preferred embodiment of this invention, a baffle plate is provided at the end of the pallet away from the second range extender housing.

[0014] The cable maintenance boat according to this utility model includes the above-mentioned underwater cable lifting device.

[0015] Beneficial effects:

[0016] The underwater cable lifting device of this utility model uses an auxiliary lifting mechanism and a support plate to lift the underwater cable out of the water, thereby facilitating user maintenance.

[0017] Furthermore, by installing an underwater cable lifting device on the cable maintenance boat, users can continuously inspect the cable while the boat is in motion, thereby improving the efficiency of underwater cable maintenance. Attached Figure Description

[0018] Figure 1 This is an isometric structural diagram of the underwater cable lifting device in at least one embodiment of the present invention;

[0019] Figure 2 This is an isometric structural diagram of the lifting part in at least one embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the underwater cable lifting device in at least one embodiment of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of a portion of point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of a portion of point B in the middle;

[0023] Figure 6 This is a schematic diagram of the isometric structure of the skateboard in at least one embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the inner structure of the skateboard in at least one embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the tray structure in at least one embodiment of the present invention. Detailed Implementation

[0026] Seen in Figure 1-8 This embodiment provides an underwater cable lifting device, which includes a lifting part and a range extender component 2. The range extender component 2 includes a first range extender housing 21 and a second range extender housing 22 that are slidably fitted together. One end of the first range extender housing 21 is provided with a limiting plate 211. The second range extender housing 22 has a sliding groove 212. A sliding plate 3 is slidably provided in the sliding groove 212. An auxiliary lifting mechanism 4 is provided at the sliding plate 3. The auxiliary lifting mechanism 4 is used to drive the sliding plate 3 away from the limiting plate 211 when the second range extender housing 22 is away from the limiting plate 211. A support plate 5 is detachably provided on the side of the sliding plate 3 away from the first range extender housing 21.

[0027] Specifically, a second hydraulic cylinder 23 is provided at the first range extender housing 21. One end of the second hydraulic cylinder 23 is hinged to the end of the first range extender housing 21 near the limiting plate 211, and the other end is hinged to the end of the second range extender housing 22 away from the limiting plate 211. The sliding of the second range extender housing 22 relative to the first range extender housing 21 is achieved by extending and retracting the second hydraulic cylinder 23.

[0028] The auxiliary lifting mechanism 4 located in the second range extender housing 22 includes a first sprocket 41 and a second sprocket 42 spaced apart at the second range extender housing 22. A chain is provided between the first sprocket 41 and the second sprocket 42. A first chain limiting bracket 43 is fixedly provided on the side wall of the first range extender housing 21. The first chain limiting bracket 43 is fixedly engaged with the chain. A second chain limiting bracket 31 is provided at the slide plate 3. The second chain limiting bracket 31 is fixedly engaged with the chain.

[0029] Specifically, the first chain limiting bracket 43 has at least one first limiting tooth 431, which is engaged with the chain. The second chain limiting bracket 31 has at least one second limiting tooth 311, which is engaged with the chain. Therefore, when the second hydraulic cylinder 23 pushes the second lifting housing away from the limiting plate 211, the first chain limiting bracket 43 moves towards the first sprocket 41, which in turn drives the second sprocket 42 bracket to move away from the limiting plate 211, which in turn drives the support plate 5 to move.

[0030] When in use, as the second range extender housing 22 moves underwater, the support plate 5 also moves downward, thus increasing the stroke of the support plate 5. When the second housing moves above the water, the support plate 5 lifts the cable upward, causing the cable to leave the water surface for easy observation by staff.

[0031] In some embodiments, a mounting hole 32 is provided through the slide plate 3, and a mounting shaft 51 is formed on the side of the support plate 5 near the slide plate 3. The mounting shaft 51 is used to cooperate with the mounting hole 32. A limiting buckle 33 is provided at the slide plate 3 for rotation. The limiting buckle 33 is used to engage with the mounting shaft 51.

[0032] Specifically, the limiting buckle 33 has a limiting block 331 on the side near the mounting shaft 51, and a corresponding limiting groove 511 is provided at the mounting shaft 51. The limiting block 331 is used to engage with the limiting groove 511. Through the above structure, the tray 5 can be easily disassembled and assembled.

[0033] In some embodiments, a baffle plate 52 is provided at the end of the tray 5 away from the second range extender housing 22, thereby preventing the cable from slipping off the tray 5.

[0034] In addition, a lifting part 1 is provided on one side of the lifting part, including a fixed bracket 11. The fixed bracket 11 is hinged to a first connecting plate 12 and a second connecting plate 13 at both ends. The first range extender housing 21 is provided with a first cooperating bracket 14 and a second cooperating bracket 15 at intervals on the side near the lifting part 1. The first cooperating bracket 14 is hinged to the first connecting plate 12, and the second cooperating bracket 15 is hinged to the second connecting plate 13.

[0035] The fixed bracket 11 is also equipped with a first hydraulic cylinder 16, and the two ends of the first hydraulic cylinder 16 are respectively hinged to the fixed bracket 11 and the second cooperating bracket 15.

[0036] Thus, the first hydraulic cylinder 16 can drive the first range extender housing 21 away from the fixed bracket 11. Since the first connecting plate 12, the second connecting plate 13, the fixed bracket 11 and the first range extender housing 21 form a parallelogram structure, the lifting part can be folded and stored relative to the lifting part 1.

[0037] In some embodiments, the present invention also provides a cable inspection boat, which includes the above-mentioned underwater cable lifting device. The underwater cable lifting device is located on the side wall of the boat. In use, the first hydraulic cylinder 16 lifts the part away from the lifting part 1, and then the second hydraulic cylinder 23 drives the second extension housing 22 and the support plate 5 to move underwater. When the second support plate 5 is located below the underwater cable, the second hydraulic cylinder 23 drives the support plate 5 and the second extension housing 22 to move above the water, so that the cable leaves the water surface. At this time, the cable inspection boat sails along the cable laying direction, and the user can inspect the cable and repair it when a fault is encountered.

[0038] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

Claims

1. An underwater cable lifting device, characterized in that, The device includes a lifting section, a lifting section on one side of the lifting section, a range extender assembly, and a first range extender housing and a second range extender housing that are slidably fitted together. A limiting plate is provided at one end of the first range extender housing, and the second range extender housing has a sliding groove. A sliding plate is slidably disposed in the sliding groove, and an auxiliary lifting mechanism is provided at the sliding plate. The auxiliary lifting mechanism is used to drive the sliding plate away from the limiting plate when the second range extender housing moves away from the limiting plate. A support plate is detachably provided on the side of the sliding plate away from the first range extender housing.

2. The underwater cable lifting device according to claim 1, characterized in that, The lifting unit includes a fixed bracket, with a first connecting plate and a second connecting plate respectively hinged to both ends of the fixed bracket. A first cooperating bracket and a second cooperating bracket are provided at intervals on the side of the first range extender housing near the lifting unit. The first cooperating bracket is hinged to the first connecting plate, and the second cooperating bracket is hinged to the second connecting plate.

3. The underwater cable lifting device according to claim 2, characterized in that, A first hydraulic cylinder is also provided at the fixed bracket, and the two ends of the first hydraulic cylinder are respectively hinged to the fixed bracket and the second cooperating bracket.

4. The underwater cable lifting device according to claim 1, characterized in that, A second hydraulic cylinder is provided at the first range extender housing. One end of the second hydraulic cylinder is hinged to the end of the first range extender housing near the limiting plate, and the other end is hinged to the end of the second range extender housing away from the limiting plate.

5. The underwater cable lifting device according to claim 1, characterized in that, The auxiliary lifting mechanism includes a first sprocket and a second sprocket spaced apart at the second range extender housing. A chain is provided between the first sprocket and the second sprocket. A first chain limiting bracket is fixedly provided on the side wall of the first range extender housing. The first chain limiting bracket is fixedly engaged with the chain. A second chain limiting bracket is provided at the slide plate. The second chain limiting bracket is fixedly engaged with the chain.

6. The underwater cable lifting device according to claim 5, characterized in that, The first chain limiting bracket has at least one first limiting tooth, which is engaged with the chain. The second chain limiting bracket has at least one second limiting tooth, which is engaged with the chain.

7. The underwater cable lifting device according to claim 1, characterized in that, The slide plate has a through-hole for mounting, and the side of the support plate near the slide plate forms a corresponding mounting shaft. The mounting shaft is used to mate with the mounting hole. The slide plate is equipped with a limit buckle for rotation, which is used to engage with the mounting shaft.

8. The underwater cable lifting device according to claim 7, characterized in that, The limit buckle has a limit block on the side near the mounting shaft, and a limit groove is provided at the mounting shaft. The limit block is used to engage with the limit groove.

9. The underwater cable lifting device according to claim 1, characterized in that, A baffle plate is provided at the end of the pallet away from the second range extender housing.

10. A cable inspection boat, characterized in that, Includes the underwater cable lifting device as described in any one of claims 1-9.

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