Protection mechanism for submarine cable laying

Abstract

The utility model discloses a protection mechanism for submarine cable laying, which comprises a supporting seat (1) and an adjusting seat (2), one end of the supporting seat (1) is rotatably connected with a first guide roller (1.1), the first guide roller (1.1) is movably connected to the supporting seat (1), the adjusting seat (2) is provided with a second guide roller (2.1) parallel to the first guide roller (1.1), and the second guide roller (2.1) is movably connected to the supporting seat (1). One end of the adjusting seat (2) is rotationally connected to the supporting seat (1), the second guide roller (2.1) is rotationally connected to the other end of the adjusting seat (2), and a submarine cable sequentially bypasses the second guide roller (2.1) and the first guide roller (1.1) in the laying process. The utility model provides a protection mechanism for submarine cable laying, which is suitable for laying submarine cables of different specifications.

Description

Technical Field

[0001] The utility model relates to the field of submarine cables, in particular to a protection mechanism for laying submarine cables. Background Art

[0002] Submarine cable is an electric cable wrapped with insulating material, laid on the seabed and used for telecommunication transmission. Submarine cables are divided into submarine communication cables and submarine power cables. Modern submarine cables all use optical fiber as material to transmit telephone and Internet signals. Usually, the laying of submarine cables requires the help of submarine cable construction ships. The submarine cable is wound on the cable drum on the surface of the construction ship. One end of the submarine cable is fixed on land. As the construction ship moves, the cable drum rotates to realize the unwinding and laying of the submarine cable.

[0003] During the laying of submarine cables, the submarine cables will move from the cable drum on the deck to the sea. During the movement, especially when leaving the deck, the submarine cables will bend and rub against the edge of the deck, which can easily cause wear of the submarine cables and is not conducive to the quality of use of the submarine cables in seawater.

[0004] In order to prevent the submarine cable from abrading against the deck during the laying process, a protection frame is often set up at the edge of the deck to allow the submarine cable to move into the sea along the protection frame. However, there are many types of submarine cables, with different diameters and core wire structures, which result in different minimum bending radii for submarine cables of different diameters. A single-structure protection frame is often unable to cope with the laying of diverse submarine cables, resulting in the need to replace the corresponding protection frame simultaneously when changing the submarine cable being laid, which increases the intensity of the work and prolongs the preparation period. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a submarine cable laying protection mechanism suitable for laying submarine cables of different specifications.

[0006] The technical solution adopted by the utility model to solve the above-mentioned problem is: a protective mechanism for laying submarine cables, including a support seat and an adjustment seat, one end of the support seat is rotatably connected to a first guide roller, and the first guide roller is movably connected to the support seat, and the adjustment seat is provided with a second guide roller parallel to the first guide roller, one end of the adjustment seat is rotatably connected to the support seat, and the second guide roller is rotatably connected to the other end of the adjustment seat, and the submarine cable passes around the second guide roller and the first guide roller in sequence during the laying process.

[0007] Compared with the prior art, the utility model has the advantages that: there are two guide rollers in total, the first guide roller is used to ensure the distance between the submarine cable and the deck when it is detached from the deck, so as to ensure that the submarine cable is not easy to rub against the deck, and the second guide roller is used to ensure the height of the submarine cable when it is detached from the deck, avoiding friction between the submarine cable and the deck. At the same time, because the adjustment seat is rotatably connected to the support seat, the first guide roller is movably connected to the support seat, so that the relative position between the first guide roller and the second guide roller can be adjusted, so that the support curvature range between the first guide roller and the second guide roller can be adjusted to meet the laying requirements of different submarine cables, avoiding the bending curvature of the submarine cable when it is detached from the deck is less than the minimum bending radius of the submarine cable, causing damage to the submarine cable, ensuring the quality of the submarine cable when it is detached from the deck during the laying process, and being suitable for different types of submarine cables, reducing the work intensity of replacing the submarine cable, and shortening the construction period of replacing the submarine cable.

[0008] As an improvement of the utility model, a first limiting groove is provided on the support seat, and the first guide roller is rotatably connected in the first limiting groove. Through the improvement, when the submarine cable moves on the first guide roller, the design of the first limiting groove ensures that the submarine cable moves around the first guide roller, thereby preventing the submarine cable from detaching from the first guide roller.

[0009] As an improvement of the utility model, a second limiting groove is provided on the adjustment seat, and the second guide roller is rotatably connected in the second limiting groove. Through the improvement, when the submarine cable moves on the second guide roller, the design of the second limiting groove ensures that the submarine cable moves around the second guide roller, thereby preventing the submarine cable from detaching from the second guide roller.

[0010] As an improvement of the present invention, the support seat includes a support frame and a movable frame, one end of the movable frame is movably connected to the outer side of the support frame for rotationally connecting with the first guide roller, and the other end of the movable frame is movably connected to the inner side of the support frame, and movable rods are respectively provided on both sides of the movable frame, and a guide hole movably connected to the movable rod is provided in the support frame. Through the improvement, the purpose of movably connecting the first guide roller to the support seat is achieved through the design of the support frame and the movable frame, the accuracy of the moving direction of the movable frame can be guaranteed through the design of the movable rod and the guide hole, and the stability of the movement of the movable frame can be guaranteed by the design of the two movable rods.

[0011] As an improvement of the present invention, a moving drive rod is provided at one end of the moving frame away from the first guide roller, and a rotating connecting hole is provided on the moving drive rod. A driving fixing plate is provided at one end of the support frame away from the first guide roller, and a threaded hole is provided on the driving fixing plate. The threaded hole is coaxially arranged with the rotating connecting hole, and a rotating drive rod is threadedly connected to the threaded hole. An end of the rotating drive rod close to the rotating connecting hole is rotatably connected to the rotating connecting hole. Through the improvement, the moving frame is pushed by rotating the rotating drive rod.

[0012] As an improvement of the utility model, a driving handle is provided at one end of the driving rod away from the rotating connecting hole, and the driving handle is arranged on the outside of the supporting frame. Through the improvement, the driving torque is increased, so that the rotation of the driving rod can be better realized to drive the moving frame to move.

[0013] As another improvement of the utility model, a rotating connecting column is provided on the side of the adjustment seat away from the supporting seat, and a support rod is provided on the supporting seat. The top end of the support rod is rotatably connected to a telescopic electric cylinder, and the movable end of the telescopic electric cylinder is rotatably connected to the rotating connecting column. Through the improvement, the rotation control of the adjustment seat is realized, so as to realize the supporting effect of the adjustment seat on different submarine cables, to ensure that different submarine cables can avoid friction with the deck, and to avoid excessive bending of different submarine cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model under normal conditions.

[0015] Figure 2 It is a schematic diagram of the structure of the utility model in the overall use state.

[0016] Figure 3 It is a schematic diagram of the cross-sectional connection structure of the support seat of the utility model.

[0017] As shown in the figure: 1. Support seat, 1.1. First guide roller, 1.2. First limiting groove, 1.3. Support frame, 1.3.1. Guide hole, 1.4. Moving frame, 1.4.1. Moving rod, 1.4.2. Moving drive rod, 1.4.3. Rotating connecting hole, 2. Adjusting seat, 2.1. Second guide roller, 2.2. Second limiting groove, 2.3. Rotating connecting column, 3. Driving fixing plate, 3.1. Threaded hole, 4. Rotating drive rod, 4.1. Driving handle, 5. Support rod, 6. Telescopic electric cylinder, 7. Nut. DETAILED DESCRIPTION

[0018] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0019] like Figure 1-2As shown, a protection mechanism for laying a submarine cable comprises a support seat 1 and an adjustment seat 2, one end of the support seat 1 is rotatably connected to a first guide roller 1.1, and the first guide roller 1.1 is movably connected to the support seat 1, and the adjustment seat 2 is provided with a second guide roller 2.1 parallel to the first guide roller 1.1, one end of the adjustment seat 2 is rotatably connected to the support seat 1, and the second guide roller 2.1 is rotatably connected to the other end of the adjustment seat 2, and the submarine cable sequentially passes around the second guide roller 2.1 and the first guide roller 1.1 during the laying process, a first limiting groove 1.2 is provided on the support seat 1, and the first guide roller 1.1 is rotatably connected in the first limiting groove 1.2, a second limiting groove 2.2 is provided on the adjustment seat 2, and the second guide roller 2.1 is rotatably connected in the second limiting groove 2.2.

[0020] like Figure 3 As shown, the support seat 1 includes a support frame 1.3 and a movable frame 1.4, one end of the movable frame 1.4 is movably connected to the outer side of the support frame 1.3 for rotationally connecting with the first guide roller 1.1, and the other end of the movable frame 1.4 is movably connected to the inner side of the support frame 1.3, and movable rods 1.4.1 are respectively arranged on both sides of the movable frame 1.4, and a guide hole 1.3.1 movably connected to the movable rod 1.4.1 is arranged in the support frame 1.3, and a movable driving rod 1.4.2 is arranged at one end of the movable frame 1.4 away from the first guide roller 1.1, and the movable driving rod 1.4.2 is arranged at one end of the movable frame 1.4 away from the first guide roller 1.1. .2 is provided with a rotating connecting hole 1.4.3, and a driving fixing plate 3 is provided at one end of the support frame 1.3 away from the first guide roller 1.1, and a threaded hole 3.1 is provided on the driving fixing plate 3, and the threaded hole 3.1 is coaxially arranged with the rotating connecting hole 1.4.3, and a rotating driving rod 4 is threadedly connected to the threaded hole 3.1, and the end of the rotating driving rod 4 close to the rotating connecting hole 1.4.3 is rotatably connected to the rotating connecting hole 1.4.3, and a driving handle 4.1 is provided at the end of the driving rod away from the rotating connecting hole 1.4.3, and the driving handle 4.1 is arranged on the outside of the support frame 1.3.

[0021] The adjustment seat 2 is provided with a rotating connecting column 2.3 on the side away from the supporting seat 1. The supporting seat 1 is provided with a supporting rod 5. The top end of the supporting rod 5 is rotatably connected to a telescopic electric cylinder 6. The moving end of the telescopic electric cylinder 6 is rotatably connected to the rotating connecting column 2.3.

[0022] During use, the support seat 1 is fixedly connected to the deck. When it is necessary to lay a submarine cable, the driving handle 4.1 is first turned to push the first guide roller 1.1 to move away from the edge of the deck to ensure that the submarine cable will not contact the deck after bypassing the first guide roller 1.1, and then the telescopic electric cylinder 6 is driven to control the inclination angle of the adjustment seat 2. When the submarine cable is passing around the second guide roller 2.1, observe the initial contact state of the submarine cable and the first guide roller 1.1. If the submarine cable directly contacts the first guide roller 1.1, the submarine cable may be in a safe bending range. At this time, the bending state of the submarine cable can be measured to determine whether the bending radius needs to be increased. If necessary, it can be achieved by increasing the inclination angle of the adjustment seat 2 or extending the length of the first guide roller 1.1 extending out of the deck. If the submarine cable does not contact the first guide roller 1.1, the submarine cable is in a natural bending state, which may easily cause the bending radius of the submarine cable to be too small and cause damage to the submarine cable. At this time, it is necessary to promptly extend the length of the first guide roller 1.1 extending out of the deck. After the first guide roller 1.1 contacts the submarine cable, continue to push a small distance to ensure the support of the first guide roller 1.1 to the submarine cable to avoid bending damage to the submarine cable.

[0023] A nut 7 is also provided on the threaded section of the rotating drive rod 4. After the protruding length of the first guide roller 1.1 is positioned, the nut 7 is rotated to make the nut 7 abut against the driving fixing plate 3 to form a double thread self-locking between the rotating drive rod 4 and the driving fixing plate 3, thereby ensuring that during the laying of the submarine cable, the thread between the rotating drive rod 4 and the driving fixing plate 3 will not rotate, thereby ensuring the stability of the first guide roller 1.1.

[0024] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A protection mechanism for laying a submarine cable, characterized in that: The invention comprises a support seat (1) and an adjustment seat (2); one end of the support seat (1) is rotatably connected to a first guide roller (1.1), and the first guide roller (1.1) is movably connected to the support seat (1); the adjustment seat (2) is provided with a second guide roller (2.1) parallel to the first guide roller (1.1); one end of the adjustment seat (2) is rotatably connected to the support seat (1), and the second guide roller (2.1) is rotatably connected to the other end of the adjustment seat (2); during the laying process, the submarine cable passes around the second guide roller (2.1) and the first guide roller (1.1) in sequence.

2. A protection mechanism for laying a submarine cable according to claim 1, characterized in that: A first limiting groove (1.2) is provided on the support seat (1), and the first guide roller (1.1) is rotatably connected in the first limiting groove (1.2).

3. A protection mechanism for laying a submarine cable according to claim 1, characterized in that: A second limiting groove (2.2) is provided on the adjustment seat (2), and the second guide roller (2.1) is rotatably connected in the second limiting groove (2.2).

4. A protection mechanism for laying a submarine cable according to claim 1, characterized in that: The support seat (1) comprises a support frame (1.3) and a movable frame (1.4); one end of the movable frame (1.4) is movably connected to the outside of the support frame (1.3) for rotationally connecting with the first guide roller (1.1); the other end of the movable frame (1.4) is movably connected to the inside of the support frame (1.3); movable rods (1.4.1) are respectively provided on both sides of the movable frame (1.4); and a guide hole (1.3.1) movably connected to the movable rod (1.4.1) is provided in the support frame (1.3).

5. A protection mechanism for laying a submarine cable according to claim 4, characterized in that: A movable driving rod (1.4.2) is provided at one end of the movable frame (1.4) away from the first guide roller (1.1), and a rotating connecting hole (1.4.3) is provided on the movable driving rod (1.4.2); a driving fixing plate (3) is provided at one end of the supporting frame (1.3) away from the first guide roller (1.1), and a threaded hole (3.1) is provided on the driving fixing plate (3); the threaded hole (3.1) and the rotating connecting hole (1.4.3) are coaxially arranged; a rotating driving rod (4) is threadedly connected to the threaded hole (3.1); and an end of the rotating driving rod (4) close to the rotating connecting hole (1.4.3) is rotatably connected to the rotating connecting hole (1.4.3).

6. A protection mechanism for laying a submarine cable according to claim 5, characterized in that: A driving handle (4.1) is provided at one end of the driving rod away from the rotating connection hole (1.4.3), and the driving handle (4.1) is arranged on the outside of the supporting frame (1.3).

7. A protection mechanism for laying a submarine cable according to claim 1, characterized in that: A rotating connection column (2.3) is provided on the side of the adjustment seat (2) away from the support seat (1); a support rod (5) is provided on the support seat (1); a top end of the support rod (5) is rotatably connected to a telescopic electric cylinder (6); and a movable end of the telescopic electric cylinder (6) is rotatably connected to the rotating connection column (2.3).

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