Marine cable laying device

Abstract

The application discloses a marine cable laying device for laying shore power cables of a ship, which comprises an elastic support frame and a guide structure. The elastic support frame comprises a connecting plate and a support plate connected to the connecting plate. The connecting plate is arranged on a deck of the ship, and the support plate is configured to be capable of approaching or moving away from the connecting plate. The guide structure is arranged on the support plate and is opposite to the support plate and away from the connecting plate. The shore power cable can be overlapped on the guide structure, and the guide structure can guide the shore power cable. The marine cable laying device can effectively buffer the pulling force applied to the shore power cable, avoids the risk that the skin of the shore power cable is pulled apart or even the shore power cable is pulled off, prolongs the service life of the shore power cable, and has the advantages of simple structure and low production cost.

Description

Technical Field

[0001] This invention relates to the field of marine technology, and in particular to a marine cable laying device. Background Technology

[0002] After a ship docks, it typically uses shore power. This involves running shore power cables through the hatches in the deck to a power distribution box on shore, where they are connected to supply power to the ship's electrical equipment. This usually requires laying multiple shore power cables, each approximately 100 meters long. However, as the water level rises and falls after a ship docks, the ship also moves up and down with the water level. The height difference between the ship and the water level is typically between 0.3 and 2 meters. When the height difference is significant, it can affect the already laid shore power cables, causing them to be subjected to considerable tensile force. In severe cases, this can lead to the cable sheath cracking or even the cable breaking.

[0003] In response to this phenomenon, existing cable laying devices guide shore power cables through a guide frame structure. Although this can reduce the impact on shore power cables, the protection effect on shore power cables is poor, and there is still a risk that the shore power cables may be pulled apart. Summary of the Invention

[0004] The purpose of this invention is to provide a marine cable laying device to solve the problem that although existing cable laying devices can reduce the impact on shore power cables, they have poor protection effects on shore power cables and still pose a risk of shore power cables being pulled apart.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Marine cable laying apparatus for laying shore power cables on ships, comprising:

[0007] A flexible support frame, the flexible support frame including a connecting plate and a support plate connected to the connecting plate, the connecting plate being disposed on the deck of the vessel, and the support plate being configured to be able to approach or move away from the connecting plate;

[0008] A guiding structure is disposed on the support plate and is located away from the connecting plate relative to the support plate. The shore power cable can be connected to the guiding structure, and the guiding structure can guide the shore power cable.

[0009] Preferably, the elastic support frame further includes a first elastic element, which is distributed between the connecting plate and the support plate and connects the connecting plate and the support plate.

[0010] Preferably, the support plate is rotatably connected to the connecting plate via a rotatable connector.

[0011] Preferably, a second elastic element is provided on the side of the connecting plate away from the support plate, one end of the second elastic element is connected to the support plate, and the other end can elastically abut against the deck.

[0012] Preferably, the deck is provided with a hatch, and the connecting plates are distributed at the hatch.

[0013] Preferably, the connecting plate or the support plate is connected to the deck by hooks.

[0014] Preferably, the guiding structure includes a cable guide wheel and a guide wheel support frame. The guide wheel support frame is disposed on the support plate, and the cable guide wheel is disposed on the guide wheel support frame. The shore power cable can be connected to the cable guide wheel, and the cable guide wheel can guide the shore power cable.

[0015] Preferably, the cable guide wheel includes an axle and a guide wheel body rotatably connected to the axle. Both ends of the axle are provided on the guide wheel support frame. The shore power cable can be attached to the guide wheel body, and the guide wheel body can guide the shore power cable.

[0016] The guide structure also includes a locking element, which is threadedly connected to the guide wheel support frame and abuts against the wheel axle.

[0017] Preferably, the first elastic element includes a plurality of sub-elastic elements, which are connected end to end in sequence, and one of the two sub-elastic elements located at both ends is also connected to the connecting plate, and the other is also connected to the support plate.

[0018] Preferably, there are multiple first elastic elements, which are spaced apart and located between the connecting plate and the supporting plate.

[0019] The beneficial effects of this invention are:

[0020] The present invention aims to provide a marine cable laying device for laying shore power cables on a ship. The marine cable laying device includes an elastic support frame and a guiding structure. The elastic support frame includes a connecting plate and a support plate connected to the connecting plate. The connecting plate is disposed on the deck of the ship. The support plate is configured to be close to or away from the connecting plate. The guiding structure is disposed on the support plate and is located away from the connecting plate relative to the support plate. The shore power cable can be overlapped with the guiding structure, and the guiding structure can guide the shore power cable. After the shore power cable on the ship is connected to the guiding structure and electrically connected to the power box on shore, the elastic support frame and the guiding structure work together to support the shore power cable. As the ship rises and falls with the water level, the tensile force applied to the shore power cable causes the support plate to move relative to the connecting plate, so that the support plate can be pressed towards the connecting plate. During this process, the shore power cable also moves relative to the guiding structure to buffer the tensile force applied to the shore power cable and prevent the sheath of the shore power cable from being torn or even broken. When the tensile force is removed, the support plate moves away from the connecting plate and returns to the initial position supporting the shore power cable.

[0021] Therefore, this shipboard cable laying device can effectively buffer the tensile force applied to shore power cables, avoiding the risk of the shore power cable sheath being torn or even broken, thus improving the service life of the shore power cables. It also has a simple structure and low production cost. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a marine cable laying device provided in a specific embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the guiding structure of the marine cable laying device provided in a specific embodiment of the present invention.

[0024] In the picture:

[0025] 100. Deck; 110. Hatch;

[0026] 1. Elastic support frame; 11. Connecting plate; 12. Support plate; 13. First elastic element; 131. Sub-elastic element; 132. Rigid connecting element; 14. Second elastic element;

[0027] 2. Guiding structure; 21. Cable guide wheel; 211. Wheel axle; 212. Guide wheel body; 22. Guide wheel support frame; 23. Locking component. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0032] This invention provides a marine cable laying device for laying shore power cables on ships, such as... Figure 1 and Figure 2As shown, the marine cable laying device includes an elastic support frame 1 and a guide structure 2. The elastic support frame 1 includes a connecting plate 11 and a support plate 12 connected to the connecting plate 11. The connecting plate 11 is disposed on the deck 100 of the ship, and the support plate 12 is configured to be able to approach or move away from the connecting plate 11. The guide structure 2 is disposed on the support plate 12 and is away from the connecting plate 11 relative to the support plate 12. The shore power cable can be overlapped with the guide structure 2, and the guide structure 2 can guide the shore power cable. After the shore power cable on the ship is connected to the guide structure 2 and electrically connected to the power box on shore, the elastic support frame 1 and the guide structure 2 work together to support the shore power cable. As the ship rises and falls with the water level, the tensile force applied to the shore power cable causes the support plate 12 to move relative to the connecting plate 11, so that the support plate 12 can be pressed to move closer to the connecting plate 11. During this process, the shore power cable will also move relative to the guide structure 2 to buffer the tensile force applied to the shore power cable and prevent the sheath of the shore power cable from being torn or even broken. When the tensile force is removed, the support plate 12 moves away from the connecting plate 11 and returns to the initial position of supporting the shore power cable.

[0033] Therefore, this shipboard cable laying device can effectively buffer the tensile force applied to shore power cables, avoiding the risk of the shore power cable sheath being torn or even broken, thus improving the service life of the shore power cables. It also has a simple structure and low production cost.

[0034] Among them, such as Figure 1 As shown, the elastic support frame 1 also includes a first elastic element 13, which is distributed between the connecting plate 11 and the support plate 12, and connects the connecting plate 11 and the support plate 12. This arrangement allows the support plate 12 to move closer to or further away from the connecting plate 11, thereby buffering the tensile force applied to the shore power cable and preventing the sheath of the shore power cable from being torn or even broken. It can be understood that even if a tensile force is suddenly applied to the shore power cable, the tensile force applied to the shore power cable can be effectively buffered under the action of the first elastic element 13.

[0035] Specifically, such as Figure 1As shown, the first elastic element 13 includes multiple sub-elastic elements 131, which are connected end-to-end in sequence. One of the two sub-elastic elements 131 located at both ends is connected to the connecting plate 11, and the other is connected to the support plate 12. Specifically, in this embodiment, any two adjacent sub-elastic elements 131 are connected by a rigid connector 132, and one of the two sub-elastic elements 131 located at both ends is connected to the connecting plate 11 by a rigid connector 132, and the other is connected to the support plate 12 by a rigid connector 132. This arrangement ensures the elastic deformation capability of the first elastic element 13 and prevents the first elastic element 13 from bending due to its long length, thus improving the performance and service life of the first elastic element 13. In this embodiment, the sub-elastic element 131 is a compression spring. In other embodiments, the multiple sub-elastic elements 131 can also be directly connected end-to-end in sequence, and one of the two sub-elastic elements 131 located at both ends can be directly connected to the connecting plate 11, and the other can be directly connected to the support plate 12.

[0036] Optionally, there may be multiple first elastic elements 13, which are spaced apart and located between the connecting plate 11 and the support plate 12. It is understood that the number of first elastic elements 13 can be adaptively adjusted according to actual working conditions.

[0037] Among them, such as Figure 1 As shown, the support plate 12 is rotatably connected to the connecting plate 11 via a rotating connector. The deck 100 is provided with a hatch 110, and the connecting plates 11 are distributed at the hatch 110. In this embodiment, preferably, one end of the support plate 12 is rotatably connected to the connecting plate 11 via a rotating connector, so that the structure formed by the support plate 12 and the connecting plate 11 is V-shaped. Preferably, the end of the connecting plate 11 that is rotatably connected to the support plate 12 is spaced apart around the periphery of the hatch 110. This arrangement separates the shore power cable from the deck 100 at the hatch 110, avoiding friction between the shore power cable and the deck 100 at the hatch 110 during movement, thereby further improving the service life of the shore power cable. The rotating connector can be a shaft or hinge, etc., capable of rotatably connecting the support plate 12 and the connecting plate 11.

[0038] Optionally, such as Figure 1 As shown, a second elastic element 14 is provided on the side of the connecting plate 11 away from the support plate 12. One end of the second elastic element 14 is connected to the support plate 12, and the other end can elastically abut against the deck 100. This arrangement can further enhance the effect of buffering the tensile force applied to the shore power cable and facilitate the installation of hooks on the connecting plate 11. In this embodiment, the second elastic element 14 is a rubber pad. In other embodiments, the second elastic element 14 can also be made of a material with elastic buffering properties, such as a compression spring.

[0039] Optionally, there may be multiple second elastic elements 14, which are distributed at intervals. In this embodiment, it is preferable that there are four second elastic elements 14, which are distributed at the four corners of the connecting plate 11.

[0040] The connecting plate 11 or the support plate 12 is connected to the deck 100 via hooks. Preferably, the support plate 12 is connected to the deck 100 via hooks. Preferably, the hooks are located on the connecting plate 11 at one end that is rotatably connected to the support plate 12.

[0041] Among them, such as Figure 1 and Figure 2 As shown, the guiding structure 2 includes a cable guide wheel 21 and a guide wheel support frame 22. The guide wheel support frame 22 is mounted on the support plate 12, and the cable guide wheel 21 is mounted on the guide wheel support frame 22. The shore power cable can be connected to the cable guide wheel 21, and the cable guide wheel 21 can guide the shore power cable. This arrangement enables the guidance of the shore power cable's movement path.

[0042] Specifically, such as Figure 1 and Figure 2 As shown, the cable guide wheel 21 includes an axle 211 and a guide wheel body 212 rotatably connected to the axle 211. Both ends of the axle 211 are mounted on the guide wheel support frame 22. The shore power cable can be attached to the guide wheel body 212, which guides the shore power cable. The guide structure 2 also includes a locking member 23, which is threadedly connected to the guide wheel support frame 22 and tightened against the axle 211. This allows the guide wheel body 212 to be rotatably connected to the support plate 12, reducing the mutual friction between the shore power cable and the guide wheel body 212, thereby further extending the service life of the shore power cable and facilitating later maintenance or replacement of the guide wheel body 212. The axle 211 is provided with clearance, transition, or interference fit within the guide wheel support frame 22. As an alternative, the axle 211 can also be fixedly connected to the guide wheel support frame 22 by welding or other methods.

[0043] Preferably, the guide wheel body 212 is made of insulating material. In other embodiments, an insulating layer may also be applied to the outer peripheral surface of the guide wheel body 212.

[0044] Preferably, the outer circumferential surface of the guide wheel body 212 is provided with an annular groove, and the shore power cable is distributed within the groove. This arrangement can prevent the shore power cable from detaching from the guide wheel body 212 and ensure the guiding function of the guide wheel body 212.

[0045] Optionally, there may be multiple guide structures 2, which are spaced apart on the support plate 12. It is understood that one or more shore power cables may be installed on each guide wheel body 212.

[0046] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A marine cable laying device for laying shore power cables on ships, characterized in that, include: An elastic support frame (1) includes a connecting plate (11) and a support plate (12) connected to the connecting plate (11). The connecting plate (11) is disposed on the deck (100) of the ship, and the support plate (12) is configured to be able to approach or move away from the connecting plate (11). A guiding structure (2) is disposed on the support plate (12) and is located away from the connecting plate (11) relative to the support plate (12). The shore power cable can be connected to the guiding structure (2), and the guiding structure (2) can guide the shore power cable. The elastic support frame (1) further includes a first elastic element (13), which is distributed between the connecting plate (11) and the support plate (12) and connects the connecting plate (11) and the support plate (12); The support plate (12) is rotatably connected to the connecting plate (11) via a rotating connector.

2. The marine cable laying device according to claim 1, characterized in that, A second elastic element (14) is provided on the side of the connecting plate (11) away from the support plate (12). One end of the second elastic element (14) is connected to the connecting plate (11), and the other end can elastically abut against the deck (100).

3. The marine cable laying device according to any one of claims 1-2, characterized in that, The deck (100) is provided with a hatch (110), and the connecting plate (11) is distributed at the hatch (110).

4. The marine cable laying device according to any one of claims 1-2, characterized in that, The connecting plate (11) or the supporting plate (12) is connected to the deck (100) by hooks.

5. The marine cable laying device according to any one of claims 1-2, characterized in that, The guiding structure (2) includes a cable guide wheel (21) and a guide wheel support frame (22). The guide wheel support frame (22) is disposed on the support plate (12), and the cable guide wheel (21) is disposed on the guide wheel support frame (22). The shore power cable can be connected to the cable guide wheel (21), and the cable guide wheel (21) can guide the shore power cable.

6. The marine cable laying device according to claim 5, characterized in that, The cable guide wheel (21) includes an axle (211) and a guide wheel body (212) rotatably connected to the axle (211). Both ends of the axle (211) are provided on the guide wheel support frame (22). The shore power cable can be connected to the guide wheel body (212), and the guide wheel body (212) can guide the shore power cable. The guide structure (2) further includes a locking member (23), which can be threadedly connected to the guide wheel support frame (22) and pressed against the wheel axle (211).

7. The marine cable laying device according to any one of claims 1-2, characterized in that, The first elastic element (13) includes a plurality of sub-elastic elements (131), which are connected end to end in sequence. One of the two sub-elastic elements (131) located at both ends is also connected to the connecting plate (11), and the other is also connected to the support plate (12).

8. The marine cable laying device according to any one of claims 1-2, characterized in that, There are multiple first elastic elements (13), and the multiple first elastic elements (13) are distributed at intervals and are all located between the connecting plate (11) and the support plate (12).

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