Underwater chain link row hoisting device

Abstract

The utility model relates to a kind of underwater interlocking row hoisting device, relate to offshore construction technical field.The underwater interlocking row hoisting device of the utility model includes frame, both ends of frame are equipped with driving assembly and lifting hook assembly, lifting hook assembly includes support, rotating shaft and lifting hook, support is set on frame, rotating shaft is rotatably set on support, lifting hook is set on the surface of rotating shaft, driving assembly is connected with rotating shaft and is used to drive rotating shaft to rotate on support.Utilize driving assembly to drive rotating shaft on support rotation, make the lifting hook set on rotating shaft can change posture, that is, can hook up hoisting rope to ensure that hoisting rope does not fall off, hoisting rope can be conveniently unhooked, diver does not need to carry out underwater unhooking operation, improve the hoisting efficiency and hoisting operation safety of underwater interlocking row.

Description

Technical Field

[0001] This utility model relates to the field of marine construction technology, and in particular to an underwater interlocking hoisting device. Background Technology

[0002] Currently, when carrying out submarine cable protection construction, a type of concrete interlocking bar is often used to cover and protect the submarine cable. Generally, when sinking this type of concrete interlocking bar, the common method is to roughly locate the placement position, then use a crane vessel to directly lift and sink the interlocking bar at the placement point, and finally use divers or other underwater observation methods to observe the placement results.

[0003] Chinese patent CN201195839Y discloses a concrete interlocking mesh hanging frame. Its main frame has a mesh structure, and the ropes around the concrete interlocking mesh can be easily hooked onto suspension bolts. The crane's wire rope is threaded through lifting rings, and the concrete interlocking mesh is smoothly hoisted onto a transport vehicle. Upon arrival at the laying site, the same method is used to hoist the concrete interlocking mesh from the transport vehicle to the laying point for installation. However, the suspension bolts on the main frame do not easily allow for automatic unhooking of the wire ropes, which is detrimental to improving hoisting efficiency. Utility Model Content

[0004] This utility model provides an underwater interlocking sling hoisting device, which uses a drive component to rotate the hook to automatically release the sling, thus meeting the hoisting requirements of underwater interlocking slings.

[0005] This utility model provides an underwater interlocking hoisting device, including a frame, with a drive assembly and a hook assembly at both ends of the frame. The hook assembly includes a bracket, a rotating shaft and a hook. The bracket is disposed on the frame, the rotating shaft is rotatably disposed on the bracket, and the hook is disposed on the surface of the rotating shaft. The drive assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate on the bracket.

[0006] In one embodiment, the drive assembly includes a fixed base, a connector, and a telescopic member. The fixed base is disposed on the frame, the connector is fixed on the rotating shaft, and the two ends of the telescopic member are respectively hinged to the fixed base and the connector.

[0007] In one embodiment, the telescopic component is a hydraulic cylinder, and the frame is also equipped with a hydraulic diverter valve and a hydraulic synchronous motor.

[0008] In one embodiment, the telescopic member is provided with a hydraulic lock.

[0009] In one embodiment, the connector includes two opposing connecting plates, the rotating shaft passes through one end of the connecting plates, the other end of the connecting plates is connected to the telescopic member, and the telescopic member is located between the two connecting plates.

[0010] In one embodiment, at least two drive components are provided at each end of the frame.

[0011] In one embodiment, the frame includes a first pipe fitting, a second pipe fitting, and a third pipe fitting. The first pipe fitting is E-shaped, the second pipe fitting is L-shaped, and the third pipe fitting is straight. The ends of the first pipe fitting, the second pipe fitting, and the third pipe fitting are all provided with connecting flanges.

[0012] In one embodiment, sonars are provided on both sides of the frame.

[0013] In one embodiment, the edge of the frame is provided with an underwater beacon positioning frame.

[0014] In one embodiment, a plurality of hooks are spaced apart on the rotating shaft.

[0015] Compared with the prior art, the advantages of this utility model are that the drive component can drive the rotating shaft on the support to rotate, so that the hook set on the rotating shaft can change its posture. It can hook the lifting rope to ensure that the lifting rope does not fall off, and can also easily release the lifting rope without the need for divers to perform underwater unhooking operations, thereby improving the lifting efficiency and safety of underwater interlocking. Attached Figure Description

[0016] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0017] Figure 1 This is a top view of the underwater interlocking hoisting device in an embodiment of this utility model;

[0018] Figure 2 This is a side view of the underwater interlocking hoisting device in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the underwater interlocking gantry hoisting device suspending the underwater interlocking gantry in an embodiment of this utility model;

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the underwater interlocking gantry hoisting device releasing the underwater interlocking gantry in an embodiment of this utility model;

[0022] Figure 6 yes Figure 5 Enlarged view of point B in the middle;

[0023] Figure 7 This is a flowchart illustrating the usage method of the underwater interlocking hoisting device in this embodiment of the present invention.

[0024] Figure label:

[0025] 1. Frame; 11. First fitting; 12. Second fitting; 13. Third fitting; 14. Connecting flange; 2. Drive assembly; 21. Fixing base; 22. Connecting piece; 221. Connecting plate; 23. Telescopic piece; 24. Hydraulic diverter valve; 25. Hydraulic synchronous motor; 3. Hook assembly; 31. Bracket; 32. Rotating shaft; 33. Hook; 4. Sonar; 5. Underwater beacon positioning frame. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Submarine cables are cables wrapped in insulating material and laid on the seabed for telecommunications transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables use optical fibers to transmit telephone and internet signals. To improve the stability of submarine cable installation, concrete interlocking systems are usually used to secure the cables after installation. However, current techniques often make it difficult to release the concrete interlocking systems after laying them on the seabed and securing the cables, significantly increasing the installation difficulty and reducing efficiency. Therefore, improvements are needed.

[0028] like Figure 1 and Figure 2 As shown, an underwater interlocking hoisting device according to an embodiment of the present invention includes a frame 1. Both ends of the frame 1 are provided with a drive assembly 2 and a hook assembly 3. The hook assembly 3 includes a bracket 31, a rotating shaft 32 and a hook 33. The bracket 31 is disposed on the frame 1, the rotating shaft 32 is rotatably disposed on the bracket 31, and the hook 33 is disposed on the surface of the rotating shaft 32. The drive assembly 2 is connected to the rotating shaft 32 and is used to drive the rotating shaft 32 to rotate on the bracket 31.

[0029] The drive assembly 2 drives the rotating shaft 32 on the support 31 to rotate, allowing the hook 33 mounted on the rotating shaft 32 to change its posture. This allows it to hook the lifting rope to prevent it from slipping, while also enabling easy unhooking of the lifting rope without the need for underwater unhooking by divers, thus improving the lifting efficiency and safety of the underwater interlocking system. For ease of unhooking, the hook 33 in this embodiment is a straight hook rather than a curved hook. When unhooking is required, the lifting rope can slide off on its own and will not remain attached to the hook 33, ensuring high reliability.

[0030] like Figure 1 and Figure 2 As shown, the drive assembly 2 further includes a fixed base 21, a connector 22, and a telescopic member 23. The fixed base 21 is mounted on the frame 1, the connector 22 is fixed on the rotating shaft 32, and the two ends of the telescopic member 23 are hinged to the fixed base 21 and the connector 22, respectively. Since both ends of the telescopic member 23 can rotate, when the telescopic member 23 changes its length, it can push or pull the connector 22 to rotate on the rotating shaft 32, thereby causing the rotating shaft 32 to rotate on the bracket 31 to change the posture of the hook 33.

[0031] Furthermore, the telescopic component 23 is a hydraulic cylinder, and the frame 1 is also equipped with a hydraulic flow divider / combiner valve 24 and a hydraulic synchronous motor 25. The hydraulic cylinder has a simple structure, high reliability, and can withstand large loads, meeting the needs of underwater interlocking hoisting operations. For example... Figure 1 As shown, each end of the frame 1 is equipped with two drive components 2, and each rotating shaft 32 is driven by two drive components 2, thus achieving high reliability. Correspondingly, in this embodiment, there are four telescopic components 23, located at the four corners of the frame 1. In order to achieve smooth release of the underwater interlocking mechanism, each telescopic component 23 needs to be synchronized. Therefore, a hydraulic diversion and combination valve 24 and a hydraulic synchronous motor 25 are also provided on the frame 1 to achieve synchronous movement of each telescopic component 23. A hydraulic station (not shown in the figure) is also provided on the water surface to provide power. The hydraulic station is equipped with a two-way hydraulic lock to ensure the safety of the hoisting operation in the event of a sudden power outage or other special circumstances.

[0032] Furthermore, the telescopic component 23 is equipped with a hydraulic lock (not shown in the figure) to ensure that the telescopic component 23 can maintain pressure when the hydraulic circuit suddenly loses pressure, thus ensuring lifting safety.

[0033] like Figure 2 As shown, the connector 22 includes two opposing connecting plates 221. A rotating shaft 32 passes through one end of the connecting plate 221, and the other end of the connecting plate 221 is connected to the telescopic member 23, which is located between the two connecting plates 221. Compared to using only one connecting plate 221, using two connecting plates 221 to sandwich the telescopic member 23 in the middle provides higher reliability and stability.

[0034] like Figure 3 and Figure 4 As shown, the end of the connecting plate 221 connected to the rotating shaft 32 is larger, while the end connected to the telescopic member 23 is smaller. Because the rotating shaft 32 has a large diameter, the connecting plate 221 encloses the rotating shaft 32 to achieve a larger connection area in order to ensure a secure connection between the connecting plate 221 and the rotating shaft 32. The telescopic member 23 is relatively small, therefore the end connected to the telescopic member 23 does not need to be too large, allowing for better control of the overall weight of the connecting plate 221.

[0035] like Figure 3 and Figure 4 As shown, during hoisting operations, the telescopic component 23 is relatively short, and the end of the hook 33 is tilted upwards, allowing the hoisting rope to be stably attached to the hook 33. Figure 5 and Figure 6 As shown, when the lifting rope needs to be unhooked, the length of the telescopic member 23 increases, pushing the connecting member 22 to rotate, which in turn drives the rotating shaft 32 to rotate, so that the end of the hook 33 faces downward, and the lifting rope can be automatically unhooked.

[0036] like Figure 1 As shown, the frame 1 includes a first pipe fitting 11, a second pipe fitting 12 and a third pipe fitting 13. The first pipe fitting 11 is E-shaped, the second pipe fitting 12 is L-shaped and the third pipe fitting 13 is straight. The ends of the first pipe fitting 11, the second pipe fitting 12 and the third pipe fitting 13 are all provided with connecting flanges 14.

[0037] In this embodiment, the frame 1 is composed of various types of pipe fittings, which are interconnected using connecting flanges 14. This allows for the assembly of a frame 1 of appropriate size according to the required size of the underwater interlocking system to be hoisted, thereby reducing the difficulty of the operation. Furthermore, the connecting flanges 14 enable the rapid assembly and disassembly of each pipe fitting, allowing for quick assembly and disassembly of the frame 1 and improving operational efficiency.

[0038] Of course, the shape of the pipe fittings is not limited to the E-shape, L-shape or straight shape mentioned in this embodiment, and the shape of the frame 1 is not limited to the rectangular shape.

[0039] like Figure 2 As shown, multiple hooks 33 are spaced apart on the rotating shaft 32. The number of hooks 33 is determined by factors such as the size of the underwater interlocking system. The hooks 33 are distributed along the length of the rotating shaft 32, which can make the rotating shaft 32 bear force more evenly and improve the safety and stability of the lifting operation.

[0040] like Figure 1 As shown, sonar 4 is installed on both sides of frame 1. It is a technology that uses the characteristics of sound waves propagating and reflecting in water for navigation and ranging. It detects and locates underwater targets through electroacoustic conversion and information processing, so as to facilitate the search for underwater protected pipelines or cables.

[0041] Furthermore, an underwater beacon positioning frame 5 is provided on the edge of the frame 1. The underwater beacon positioning frame 5 is used to install underwater beacons. In this embodiment, underwater beacon positioning frames 5 are provided at the four corners of the frame 1 and at the middle of both ends of the frame 1, so as to facilitate accurate positioning of the underwater position, especially when underwater operations are carried out in low visibility conditions, which can improve the efficiency of the operation.

[0042] like Figure 7 As shown, the method of using the underwater interlocking hoisting device according to this utility model embodiment includes the following steps:

[0043] S1. Hoist the underwater interlocking gantry hoisting device to a suitable height and place it above the underwater interlocking gantry to be hoisted;

[0044] S2. Use the drive assembly 2 to rotate the rotating shaft 32, so that the hook 33 on the rotating shaft 32 rotates to the position to be lifted.

[0045] S3. Hang the pre-reserved lifting ropes on the underwater interlocking rack one by one on the hook 33, and continue to rotate the rotating shaft 32 to rotate the hook 33 to the lifting position;

[0046] S4. Use a crane to lift the underwater interlocking gantry to the predetermined position above the target, and use the drive assembly 2 to rotate the rotating shaft 32 in the opposite direction to disengage all the lifting ropes.

[0047] S5. Lift out the underwater interlocking hoisting device and carry out the next hoisting operation.

[0048] Specifically, before use, check the integrity of frame 1, umbilical cable, and matching hydraulic station, and start the hydraulic station to check the stability of the hydraulic system. During operation, use a floating crane or other crane to lift the underwater interlocking liner hoisting device to a suitable height and place it above the underwater interlocking liner to be hoisted.

[0049] Then start the hydraulic station, operate the drive component 2 on the hydraulic station control panel, rotate the hook 33 in the hook assembly 3 to a horizontal or slightly upward position, and hang the pre-reserved lifting ropes on the underwater interlocking bar one by one on the hook 33.

[0050] Next, operate the hydraulic station to rotate hook 33 to the upward direction and stop the operation. Then start the crane to lift the underwater interlocking liner to the sea surface and gradually lower it into the water. At the same time, observe the sonar or underwater beacon screen and, based on its display, determine where the pipelines or cables of the underwater interlocking liner need to be laid, and guide the crane to gradually lower it. Stop the crane operation when the lowest point of the underwater interlocking liner is close to the predetermined position.

[0051] Subsequently, the hydraulic station operating handle is activated, and the telescopic component 23 is extended, causing all the underwater interlocking gantry lifting ropes to disengage. Finally, the floating crane is activated to lift the underwater interlocking gantry lifting device out, and the above actions are repeated to continue lifting the next section of the underwater interlocking gantry.

[0052] The underwater interlocking hoisting device in this embodiment is simple to operate and highly reliable. It does not require divers to perform underwater unhooking or other actions. The hoisting rope can quickly detach itself after hoisting is completed, allowing the underwater interlocking hoisting operation to be carried out continuously, thus improving the hoisting efficiency and safety of the underwater interlocking hoist.

[0053] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An underwater interlocking hoisting device, characterized in that, The device includes a frame, with a drive assembly and a hook assembly at both ends. The hook assembly includes a bracket, a rotating shaft, and a hook. The bracket is mounted on the frame, the rotating shaft is rotatably mounted on the bracket, and the hook is mounted on the surface of the rotating shaft. The drive assembly is connected to the rotating shaft and is used to drive the rotating shaft to rotate on the bracket.

2. The underwater interlocking hoisting device according to claim 1, characterized in that, The drive assembly includes a fixed base, a connector, and a telescopic component. The fixed base is disposed on the frame, the connector is fixed on the rotating shaft, and the two ends of the telescopic component are respectively hinged to the fixed base and the connector.

3. The underwater interlocking hoisting device according to claim 2, characterized in that, The telescopic component is a hydraulic cylinder, and the frame is also equipped with a hydraulic diverter valve and a hydraulic synchronous motor.

4. The underwater interlocking hoisting device according to claim 3, characterized in that, The telescopic component is equipped with a hydraulic lock.

5. The underwater interlocking hoisting device according to claim 2, characterized in that, The connector includes two oppositely arranged connecting plates, the rotating shaft passes through one end of the connecting plates, the other end of the connecting plates is connected to the telescopic member, and the telescopic member is located between the two connecting plates.

6. The underwater interlocking hoisting device according to claim 1, characterized in that, At least two drive components are provided at each end of the frame.

7. The underwater interlocking hoisting device according to claim 1, characterized in that, The frame includes a first pipe fitting, a second pipe fitting, and a third pipe fitting. The first pipe fitting is E-shaped, the second pipe fitting is L-shaped, and the third pipe fitting is straight. The ends of the first pipe fitting, the second pipe fitting, and the third pipe fitting are all provided with connecting flanges.

8. The underwater interlocking hoisting device according to claim 1, characterized in that, Sonar is provided on both sides of the frame.

9. The underwater interlocking hoisting device according to claim 8, characterized in that, The frame is equipped with an underwater beacon positioning frame at its edge.

10. The underwater interlocking hoisting device according to claim 1, characterized in that, The rotating shaft is provided with a plurality of hooks at intervals.

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