Submarine cable suspension device

Abstract

The utility model discloses a submarine cable suspension device which comprises a suspension rod (1), the suspension rod (1) is horizontally suspended, the lower end of the suspension rod (1) is used for suspending a submarine cable, the upper end of the suspension rod (1) is used for being connected with a crane, and the lower end of the suspension rod (1) comprises a horizontal suspension section (2) used for horizontally suspending the submarine cable and a bending limiting suspension section (3) used for conducting bending limiting suspension on the submarine cable. The number of the bending limiting suspension sections (3) is two, the two bending limiting suspension sections (3) are arranged at the two ends of the suspension rod (1), and the horizontal suspension section (2) is arranged between the two bending limiting suspension sections (3). According to the submarine cable suspension device, the submarine cable is prevented from being damaged in the submarine cable hoisting process.

Description

Technical Field

[0001] The utility model relates to the field of submarine cables, and specifically relates to a submarine cable suspension device. Background Art

[0002] To ensure the long-term service quality of submarine cables, during the use of submarine cables, regular maintenance and inspection work need to be carried out. To ensure the comprehensiveness and integrity of the inspection, the submarine cable will be lifted from the seabed to the ship deck for maintenance and inspection.

[0003] During the lifting process of the submarine cable, if only directly lifting a single area of the submarine cable, it is easy to cause the problem of bending and damaging the submarine cable, which is instead not conducive to the subsequent service quality of the submarine cable. Therefore, a more stable lifting of the submarine cable is required. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: to provide a submarine cable suspension device that can avoid damaging the submarine cable during the lifting process.

[0005] The technical solution adopted by the utility model to solve the above problems is: a submarine cable suspension device, including a suspension rod. The suspension rod is horizontally suspended. The lower end of the suspension rod is used to suspend the submarine cable, and the upper end of the suspension rod is used to be connected to a crane. The lower end of the suspension rod includes a horizontal suspension section for horizontally suspending the submarine cable and a bending limit suspension section for bending limit suspension of the submarine cable. There are two bending limit suspension sections in total, and the two bending limit suspension sections are arranged at both ends of the suspension rod. The horizontal suspension section is arranged in the middle of the two bending limit suspension sections.

[0006] Compared with the prior art, the advantages of the utility model are as follows: when lifting the submarine cable, range synchronous lifting is adopted, including horizontal suspension and bending limit suspension. Among them, horizontal suspension is to take a section of the submarine cable and suspend it horizontally. During the suspension of this section of the submarine cable, the stability of the submarine cable during suspension can be ensured, avoiding insufficient suspension range of the submarine cable and adverse phenomena such as shaking and tilting of the submarine cable during suspension. And the bending limit suspension is to limit the bending of the suspended end of the submarine cable, avoiding excessive bending angle directly causing bending damage due to gravity sagging of the submarine cable during suspension. Thus, a high-quality suspension process of the submarine cable is realized, and the submarine cable will not be damaged due to maintenance and inspection work.

[0007] As an improvement of the present utility model, the horizontal suspension section includes a plurality of longitudinal fixed suspension components. Each longitudinal fixed suspension component includes a fixed lifting lug and a fixed lifting rope. The fixed lifting lug is fixedly connected to the lower end of the suspension rod. One end of the fixed lifting rope is fixedly connected to the fixed lifting lug, and the other end of the fixed lifting rope is fixedly connected to the submarine cable. The plurality of longitudinal fixed suspension components are symmetrically distributed about the center of the suspension rod. Through this improvement, the purpose of horizontally suspending the submarine cable by the horizontal suspension section is achieved. At the same time, the design that the plurality of longitudinal fixed suspension components are symmetrically distributed about the center of the suspension rod can ensure the stability of the suspension rod when suspending the submarine cable, and avoid the occurrence of eccentricity and inclination caused by uneven stress on the suspension rod during suspension.

[0008] As an improvement of the present utility model, the horizontal suspension section further includes two longitudinal adjustable suspension components. Each longitudinal adjustable suspension component includes an adjustable lifting lug and an adjustable lifting rope. The adjustable lifting lug is adjustably fixedly connected to the lower end of the suspension rod. One end of the adjustable lifting rope is fixedly connected to the adjustable lifting lug, and the other end of the adjustable lifting rope is fixedly connected to the submarine cable. The distance between the two longitudinal adjustable suspension components is adjusted according to the horizontal suspension length of the submarine cable. Through this improvement, after the longitudinal fixed suspension components ensure the basic horizontal stability of the submarine cable, different horizontal suspension lengths are selected according to different characteristics of the submarine cable, such as diameter, tensile strength, bending limit, etc. And the two longitudinal adjustable suspension components can adjust the suspension length according to requirements, so that the submarine cable suspension device has a wider applicability.

[0009] As an improvement of the present utility model, a plurality of adjustment holes are provided on the suspension rod. The plurality of adjustment holes are evenly distributed outside the two ends of the longitudinal fixed suspension components. A limiting plate is provided at the upper end of the adjustable lifting lug. The lower end of the adjustable lifting lug passes through the adjustment hole, and the limiting plate is longitudinally and limit-connected to the upper end of the adjustment hole. Through this improvement, the adjustment of the distance between the two longitudinal adjustable suspension components is achieved.

[0010] As an improvement of the present utility model, the bending limit suspension section includes an end suspension component. The end suspension component includes an end lifting lug and an end lifting rope. The end lifting lug is fixedly connected to the end of the suspension rod. One end of the end lifting rope is fixedly connected to the end lifting lug, and the other end of the end lifting rope is fixedly connected to the submarine cable. And the end lifting rope is inclined towards the center direction. Through this improvement, the purpose of bending limit suspension is achieved, and at the same time, the angle during bending limit suspension can be adjusted by adjusting the length of the end lifting rope.

[0011] As an improvement of the present utility model, the bending-limiting suspension section includes an auxiliary suspension assembly, the auxiliary suspension assembly includes an auxiliary lifting lug and an auxiliary suspension rope, the auxiliary lifting lug is fixedly connected to the middle of the bending-limiting suspension section, one end of the auxiliary suspension rope is fixedly connected to the auxiliary lifting lug, and the other end of the auxiliary suspension rope is fixedly connected to the submarine cable. Through the improvement, in some submarine cables with larger diameters, it is difficult to complete the bending-limiting suspension requirement with only one end suspension assembly at one end, and there is a risk of breakage of the end suspension rope. Therefore, an auxiliary suspension assembly is added for auxiliary bending-limiting suspension, and at the same time, the auxiliary suspension assembly can perform more precise control on the bending angle of the bending-limiting suspension.

[0012] As an improvement of the present utility model, two lifting lugs for connecting with the lifting steel bars of the crane are provided at the upper end of the suspension rod, and the two lifting lugs are respectively arranged on two bending-limiting suspension sections. Through the improvement, the crane can lift the suspension rod.

[0013] As an improvement of the present utility model, it further includes a connector. The connector is sleeved on the submarine cable. Multiple horizontal connection lugs for connecting with the horizontal suspension section are provided at the upper end of the connector. Bending-limiting pipes are provided at both ends of the connector. The bending-limiting pipes are formed by connecting multiple bending-limiting sections end to end. The connection part of the bending-limiting sections is used to connect with the bending-limiting suspension section. Through the improvement, during the laying process of the submarine cable, due to reasons such as the connection and repair of the submarine cable, a connection design of the connector will be carried out on the submarine cable. At this time, the suspension rod can directly suspend according to the length of the connector, and this area is also a key maintenance and inspection area. Designing horizontal connection lugs directly on the connector helps to directly suspend the connector, and the special bending-limiting pipe can realize the self-bending of the submarine cable, and it is not necessary for the bending-limiting suspension section to completely control the bending angle of the submarine cable, which can better ensure the integrity of the submarine cable during the suspension process. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model for suspending a conventional submarine cable.

[0015] Figure 2 is the structural schematic diagram of the distribution of adjustment holes at one end of the present utility model.

[0016] Figure 3 is the structural schematic diagram of the connection between the adjustment lug and the adjustment hole of the present utility model.

[0017] Figure 4 is the overall structural schematic diagram of the present utility model for suspending a submarine cable sleeved with a connector and a bending-limiting pipe.

[0018] As shown in the figure: 1. Suspension rod, 1.1 Adjusting hole, 2. Horizontal suspension section, 2.1 Longitudinal fixed suspension assembly, 2.1.1 Fixed lifting lug, 2.1.2 Fixed suspension rope, 2.2 Longitudinal adjusting suspension assembly, 2.2.1 Adjusting lifting lug, 2.2.1.1 Limit plate, 2.2.2 Adjusting suspension rope, 3. Bending limit suspension section, 3.1 End suspension assembly, 3.1.1 End lifting lug, 3.1.2 End suspension rope, 3.2 Auxiliary suspension assembly, 3.2.1 Auxiliary lifting lug, 3.2.2 Auxiliary suspension rope, 4. Lifting lug, 5. Connector, 5.1 Horizontal connecting lifting lug, 6. Bending limit pipe. Detailed implementation mode

[0019] The embodiments of the present utility model will be further described below in conjunction with the accompanying drawings.

[0020] As Figure 1 shown, a submarine cable suspension device includes a suspension rod 1. The suspension rod 1 is horizontally suspended. The lower end of the suspension rod 1 is used to suspend the submarine cable, and the upper end of the suspension rod 1 is used to be connected to a crane. The lower end of the suspension rod 1 includes a horizontal suspension section 2 for horizontally suspending the submarine cable and a bending limit suspension section 3 for bending limit suspension of the submarine cable. There are two bending limit suspension sections 3 in total, and the two bending limit suspension sections 3 are arranged at both ends of the suspension rod 1, and the horizontal suspension section 2 is arranged in the middle of the two bending limit suspension sections 3.

[0021] The horizontal suspension section 2 includes a plurality of longitudinal fixed suspension assemblies 2.1. The longitudinal fixed suspension assembly 2.1 includes a fixed lifting lug 2.1.1 and a fixed suspension rope 2.1.2. The fixed lifting lug 2.1.1 is fixedly connected to the lower end of the suspension rod 1. One end of the fixed suspension rope 2.1.2 is fixedly connected to the fixed lifting lug 2.1.1, and the other end of the fixed suspension rope 2.1.2 is fixedly connected to the submarine cable. The plurality of longitudinal fixed suspension assemblies 2.1 are symmetrically distributed about the center of the suspension rod 1. The horizontal suspension section 2 further includes two longitudinal adjusting suspension assemblies 2.2. The longitudinal adjusting suspension assembly 2.2 includes an adjusting lifting lug 2.2.1 and an adjusting suspension rope 2.2.2. The adjusting lifting lug 2.2.1 is adjustably fixedly connected to the lower end of the suspension rod 1. One end of the adjusting suspension rope 2.2.2 is fixedly connected to the adjusting lifting lug 2.2.1, and the other end of the adjusting suspension rope 2.2.2 is fixedly connected to the submarine cable. The two longitudinal adjusting suspension assemblies 2.2 adjust the spacing according to the horizontal suspension length of the submarine cable.

[0022] As Figure 2 、 Figure 3As shown in the figure, a plurality of adjustment holes 1.1 are provided on the suspension rod 1, and the plurality of adjustment holes 1.1 are evenly distributed on the outer sides of both ends of the longitudinal fixed suspension assembly 2.1. A limit plate 2.2.1.1 is provided at the upper end of the adjustment lifting lug 2.2.1. The lower end of the adjustment lifting lug 2.2.1 passes through the adjustment hole 1.1, and the limit plate 2.2.1.1 is longitudinally and limit-connected to the upper end of the adjustment hole 1.1. A fastener is provided at the connection between the adjustment hole 1.1 and the limit plate 2.2.1.1 for fixedly connecting the limit plate 2.2.1.1 in the adjustment hole 1.1 to ensure the firmness of the connection between the adjustment hole 1.1 and the adjustment lifting lug 2.2.1. A limit groove for embedding the limit plate 2.2.1.1 into the suspension rod 1 is provided on the suspension rod 1, so that when the adjustment lifting lug 2.2.1 is installed on the suspension rod 1, the stability of the adjustment lifting lug 2.2.1 installed on the suspension rod 1 can be better ensured, and the disengagement probability of the adjustment lifting lug 2.2.1 is reduced.

[0023] As Figure 1 shown, the bending limit suspension section 3 includes an end suspension assembly 3.1. The end suspension assembly 3.1 includes an end lifting lug 3.1.1 and an end suspension rope 3.1.2. The end lifting lug 3.1.1 is fixedly connected to the end of the suspension rod 1. One end of the end suspension rope 3.1.2 is fixedly connected to the end lifting lug 3.1.1, and the other end of the end suspension rope 3.1.2 is fixedly connected to the submarine cable. And the end suspension rope 3.1.2 is inclined in the central direction. The bending limit suspension section 3 includes an auxiliary suspension assembly 3.2. The auxiliary suspension assembly 3.2 includes an auxiliary lifting lug 3.2.1 and an auxiliary suspension rope 3.2.2. The auxiliary lifting lug 3.2.1 is fixedly connected to the middle of the bending limit suspension section 3. One end of the auxiliary suspension rope 3.2.2 is fixedly connected to the auxiliary lifting lug 3.2.1, and the other end of the auxiliary suspension rope 3.2.2 is fixedly connected to the submarine cable.

[0024] When suspending some submarine cables with a smaller diameter, the auxiliary suspension assembly 3.2 may not participate in the suspension operation.

[0025] Two lifting lugs 4 for connecting with the lifting steel bars of the crane are provided at the upper end of the suspension rod 1, and the two lifting lugs 4 are respectively arranged on the two bending limit suspension sections 3.

[0026] As Figure 4 shown, when suspending a submarine cable sleeved with a connector 5 and a bending limit pipe 6, a plurality of horizontal connection lugs 5.1 for connecting with the horizontal suspension section 2 are provided at the upper end of the connector 5. Bending limit pipes 6 are provided at both ends of the connector 5. The bending limit pipe 6 is formed by connecting a plurality of bending limit joints end to end, and the connection part of the bending limit joints is used for connecting with the bending limit suspension section 3. The structure that the bending limit pipe 6 is formed by connecting bending limit joints end to end belongs to conventional technology.

[0027] Through the design of the submarine cable suspension device, when the submarine cable is suspended, the stability of the submarine cable suspension can be ensured, making the operation in the marine environment safer. At the same time, damage to the submarine cable during the suspension process is avoided, ensuring the suspension quality of the submarine cable and the effectiveness of the maintenance and repair results.

[0028] The above is only an illustration of the best embodiment of the present invention, but it should not be construed as a limitation on the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to vary. All changes made within the scope of the protection of the independent claims of the present invention are within the protection scope of the present invention.

Claims

1. A submarine cable suspension device, characterized in that: It includes a suspension rod (1) which is horizontally suspended. The lower end of the suspension rod (1) is used to suspend the submarine cable, and the upper end of the suspension rod (1) is used to be connected to a crane. The lower end of the suspension rod (1) includes a horizontal suspension section (2) for horizontally suspending the submarine cable and a bending-limiting suspension section (3) for bending-limiting suspension of the submarine cable. There are two bending-limiting suspension sections (3) in total, and the two bending-limiting suspension sections (3) are arranged at both ends of the suspension rod (1). The horizontal suspension section (2) is arranged between the two bending-limiting suspension sections (3). The horizontal suspension section (2) further includes two longitudinal adjustment suspension assemblies (2.2). The longitudinal adjustment suspension assembly (2.2) includes an adjustment lug (2.2.1) and an adjustment suspension rope (2.2.2). The adjustment lug (2.2.1) is adjustably and fixedly connected to the lower end of the suspension rod (1). One end of the adjustment suspension rope (2.2.2) is fixedly connected to the adjustment lug (2.2.1), and the other end of the adjustment suspension rope (2.2.2) is fixedly connected to the submarine cable. The two longitudinal adjustment suspension assemblies (2.2) adjust the spacing according to the horizontal suspension length of the submarine cable. There are multiple adjustment holes (1.1) on the suspension rod (1), and the multiple adjustment holes (1.1) are evenly distributed outside both ends of the longitudinal fixed suspension assembly (2.1). The upper end of the adjustment lug (2.2.1) is provided with a limit plate (2.2.1.1). The lower end of the adjustment lug (2.2.1) passes through the adjustment hole (1.1), and the limit plate (2.2.1.1) is longitudinally and limit-connected to the upper end of the adjustment hole (1.1). The bending-limiting suspension section (3) includes an end suspension assembly (3.1). The end suspension assembly (3.1) includes an end lug (3.1.1) and an end suspension rope (3.1.2). The end lug (3.1.1) is fixedly connected to the end of the suspension rod (1). One end of the end suspension rope (3.1.2) is fixedly connected to the end lug (3.1.1), and the other end of the end suspension rope (3.1.2) is fixedly connected to the submarine cable, and the end suspension rope (3.1.2) is inclined towards the center direction.

2. The submarine cable suspension device according to claim 1, wherein: the horizontal suspension section (2) includes multiple longitudinal fixed suspension assemblies (2.1), and the longitudinal fixed suspension assembly (2.1) includes a fixed lug ( 2.1.1) and a fixed suspension rope (2.1.2). The fixed lug (2.1.1) is fixedly connected to the lower end of the suspension rod (1). One end of the fixed suspension rope (2.1.2) is fixedly connected to the fixed lug (2.1.1), and the other end of the fixed suspension rope (2.1.2) is fixedly connected to the submarine cable. The multiple longitudinal fixed suspension assemblies (2.1) are symmetrically distributed about the center of the suspension rod (1).

3. The submarine cable suspension device according to claim 1, characterized in that: The limited-bending suspension section (3) includes an auxiliary suspension assembly (3.2). The auxiliary suspension assembly (3.2) includes an auxiliary lifting lug (3.2.1) and an auxiliary suspension rope (3.2.2). The auxiliary lifting lug (3.2.1) is fixedly connected to the middle of the limited-bending suspension section (3). One end of the auxiliary suspension rope (3.2.2) is fixedly connected to the auxiliary lifting lug (3.2.1), and the other end of the auxiliary suspension rope (3.2.2) is fixedly connected to the submarine cable.

4. The submarine cable suspension device according to claim 1, characterized in that: Two lifting lugs (4) for connecting with the lifting steel bars of the crane are provided at the upper end of the suspension rod (1). The two lifting lugs (4) are respectively arranged on two limited-bending suspension sections (3).

5. The submarine cable suspension device according to claim 1, characterized in that: It further includes a connector (5). The connector (5) is sleeved on the submarine cable. A plurality of horizontal connection lugs (5.1) for connecting with the horizontal suspension section (2) are provided at the upper end of the connector (5). Limited-bending pipes (6) are provided at both ends of the connector (5). The limited-bending pipes (6) are formed by connecting a plurality of limited-bending joints end to end. The connection part of the limited-bending joints is used to connect with the limited-bending suspension section (3).

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