A float-over device for landing a submarine cable

Abstract

The application provides a floating and supporting device for submarine cable landing, which comprises a plurality of first floating and supporting structures, the plurality of first floating and supporting structures are arranged in sequence and are each provided with a rope passing hole; a collecting rope, the collecting rope comprises a rope body and two anti-dropping members, the rope body passes through the rope passing holes of the plurality of first floating and supporting structures in sequence, the two anti-dropping members are connected to two ends of the rope body respectively, and the maximum size of the anti-dropping member in the radial direction of the rope body is greater than the diameter of the rope passing hole; and a counterweight structure, the counterweight structure is connected to the rope body and is used for keeping the rope body in a tension state. The floating and supporting device for submarine cable landing provided by the application can collect the plurality of first floating and supporting structures which are detached from the submarine cable together by pulling the collecting rope, so that the centralized recovery of the plurality of first floating and supporting structures is facilitated. Meanwhile, the collecting rope is kept in a tension state under the action of the counterweight structure, so that the excess part of the collecting rope is prevented from being twisted and wound under the action of seawater, and the recovery operation difficulty of the first floating and supporting structure is reduced.

Description

Technical Field

[0001] This utility model generally relates to the field of submarine cable laying technology, and specifically to a buoyancy device for submarine cable landing. Background Technology

[0002] During the near-shore landing construction of submarine cables, it is necessary to attach buoyancy devices to the cables. The buoyancy of the buoyancy devices is used to lift the cables and avoid significant frictional resistance between the cables and the ground when they are towed ashore. However, after untying the multiple buoyancy devices attached to the cables, workers need to collect each of the untied devices one by one, making the recovery of the buoyancy devices difficult. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a buoyancy device for submarine cable landing.

[0004] This application provides a buoyancy device for submarine cable landing, comprising:

[0005] Multiple first buoy structures are arranged sequentially and each is provided with a rope threading hole;

[0006] The collection rope includes a rope body and two anti-detachment components. The rope body moves sequentially through multiple rope holes of the first buoy structure. The two anti-detachment components are respectively connected to both ends of the rope body, and the maximum size of the anti-detachment components along the radial direction of the rope body is larger than the diameter of the rope hole.

[0007] The counterweight structure is connected to the rope to keep the rope taut.

[0008] Furthermore, the counterweight structure includes multiple counterweights, which are located between two adjacent first buoyancy structures and are movably connected to the rope.

[0009] Furthermore, the counterweight includes a counterweight block and a locking buckle, the locking buckle being connected to the locking buckle and the locking buckle being sleeved on the rope body.

[0010] Furthermore, the first buoy structure includes a first float, a connecting seat, and a fixing member. The first float and the fixing member are respectively connected to both sides of the connecting seat, wherein a rope hole is provided in the connecting seat.

[0011] Furthermore, it also includes a second float structure, which is connected to one of the anti-detachment components. The second float structure is provided with a connector, wherein the first float structure adjacent to the second float structure is detachably fixedly connected to the connector.

[0012] Furthermore, the second float structure includes a second float and a connecting rope, and the connecting component includes a connecting sleeve and a connecting plate, which are connected together, wherein the connecting sleeve is fixedly sleeved on the outer periphery of the connecting rope and the connecting plate is screwed to the first float structure.

[0013] Furthermore, there are two second buoy structures, each connected to one of the two anti-detachment components.

[0014] Furthermore, at least one anti-detachment component is detachably provided.

[0015] Furthermore, both anti-detachment components are detachably connected to the rope.

[0016] Furthermore, a connecting sleeve is fixedly fitted to the end of the rope. The diameter of the connecting sleeve is smaller than the diameter of the rope hole. The anti-detachment component is a detachment tube, which is sleeved on the outer circumference of the connecting sleeve and screwed to the connecting sleeve.

[0017] The buoyancy device for submarine cable landing provided in this application has rope holes in multiple first buoyancy structures arranged in sequence. The collection rope moves through the rope holes of the multiple first buoyancy structures in sequence. Both ends of the collection rope are equipped with anti-detachment components, and the maximum size of the anti-detachment components along the radial direction of the rope is larger than the diameter of the rope hole. The rope is connected to a counterweight structure, and the counterweight structure keeps the rope in a taut state. This allows the operators to pull the collection rope to gather the multiple first buoyancy structures removed from the submarine cable together, avoiding the situation where some of the first buoyancy structures drift away. This facilitates the centralized recovery of multiple first buoyancy structures. At the same time, the collection rope is kept taut under the action of the counterweight structure, preventing the excess part of the collection rope from twisting and tangling under the action of seawater, thereby reducing the difficulty of the recovery operation of the first buoyancy structures. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the structure of the buoyancy device provided in the embodiments of this application when it is installed on a submarine cable. Detailed Implementation

[0020] The present application 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 relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0021] Please refer to the attached document. Figure 1This application provides a buoyancy device for landing a submarine cable 100, comprising multiple first buoyancy structures 200, a collection rope, and a counterweight structure. The multiple first buoyancy structures 200 are arranged sequentially and each has a rope-passing hole. The multiple first buoyancy structures 200 are sequentially and spaced apart on the submarine cable 100 to buoy the submarine cable 100 in seawater, preventing the submarine cable 100 from dragging to the bottom. The collection rope includes a rope body 310 and two anti-detachment members. The rope body 310 sequentially and movably passes through the rope-passing holes of the multiple first buoyancy structures 200. The two anti-detachment members are respectively connected to both ends of the rope body 310. The maximum dimension of the anti-detachment members along the radial direction of the rope body 310 is larger than the diameter of the rope-passing hole, so that the anti-detachment members cannot pass through the rope-passing hole, preventing the collection rope and the first buoyancy structures 200 from separating. After the multiple first floating structures 200 are detached from the submarine cable 100, they are connected together by the collection rope, preventing any of them from scattering. Furthermore, operators can easily gather the detached first floating structures 200 together by pulling the collection rope, facilitating centralized retrieval and reducing the difficulty of the retrieval operation, thus improving the retrieval efficiency. It should be understood that, to avoid interference with the movement of the submarine cable 100, the length of the rope 310 is greater than the distance between the first and last first floating structures 200 along the axial direction of the submarine cable 100, allowing for a margin in the rope 310.

[0022] The counterweight structure is connected to the rope 310. The rope 310 is in a taut state under the pull of the counterweight structure, which can significantly reduce the swing amplitude of the remaining part of the rope 310 in the seawater, prevent the rope 310 from twisting itself or getting tangled with foreign objects, and help the operators to successfully retrieve multiple first floating structures 200 by collecting the rope.

[0023] Optionally, the first buoyancy structure 200 includes a first float 210, a connecting seat 220, and a fixing member 230. The first float 210 is connected to both sides of the connecting seat 220, with rope holes provided in the connecting seat 220. The first float 210 can be, but is not limited to, a buoy or a ball. The fixing member 230 and the connecting seat 220 cooperate to fix the submarine cable 100 between them. The fixing member 230 can be, but is not limited to, a U-shaped clamp, and both ends of the U-shaped clamp pass through the connecting seat 220 and are screwed with nuts 240.

[0024] In some embodiments of this application, the counterweight structure includes multiple counterweights 400, which are respectively located between two adjacent first floating structures 200, thus distributing the excess portion of the rope 310 and further preventing the collection rope from becoming tangled. The counterweights 400 are movably connected to the rope 310, allowing them to move along the collection rope with the first floating structure 200 when the operator pulls the end of the collection rope. This allows the multiple first floating structures 200 and the multiple counterweight structures to be grouped together, facilitating subsequent handling of the floating device.

[0025] Optionally, the counterweight 400 includes a counterweight block 410 and a buckle 420. The buckle 420 includes a buckle portion and a buckle ring portion connected together. The counterweight block 410 is hooked to the buckle ring portion, and the buckle portion is sleeved on the rope body 310.

[0026] In some embodiments of this application, a second buoy structure is also included. The second buoy structure is connected to one of the anti-detachment components. The second buoy structure is provided with a connector, wherein the first buoy structure 200 adjacent to the second buoy structure is detachably fixedly connected to the connector. After the multiple first buoy structures 200 are detached from the submarine cable 100, the operators can automatically locate the end of the collection rope by retrieving the second buoy structure from the ship, without requiring the operators to go into the water to find the end of the collection rope, thus improving the convenience of the recovery operation. It should be understood that when the first buoy structure 200 is removed from the submarine cable 100, it is necessary to disassemble the first buoy structure 200 and the connector at the same time.

[0027] Optionally, there are two second float structures, each connected to one of two anti-detachment components. Each second float structure is equipped with a connector, and the first float structure 200 adjacent to each second float structure is detachably fixed to the corresponding connector. This arrangement allows both ends of the collection rope to be quickly located via different second float structures.

[0028] Optionally, the second float structure includes a second float and a connecting rope. The connecting component includes a connecting sleeve and a connecting plate. The connecting plate is L-shaped, and one end of the connecting sleeve and the connecting plate are connected. The connecting sleeve is fixedly sleeved on the outer periphery of the connecting rope, and the connecting plate is screwed to the connecting seat 220 of the first float structure 200 by screws.

[0029] In some embodiments of this application, at least one anti-detachment component is detachably provided so that the rope 310 can be installed on a plurality of first buoy structures 200 in a manner that allows the rope 310 to pass sequentially through the rope holes of the plurality of first buoy structures 200, and the anti-detachment component is installed after the rope 310 is threaded through.

[0030] Optionally, both anti-detachment components are detachably connected to the rope body 310 to increase the selectivity of the rope threading direction.

[0031] Optionally, a connecting sleeve is fixedly fitted at the end of the rope body 310. The diameter of the connecting sleeve is smaller than the diameter of the rope hole so that the connecting sleeve can also pass through the rope hole. The anti-detachment component is the anti-detachment tube 320, which is sleeved on the outer periphery of the connecting sleeve and screwed to the connecting sleeve, making the disassembly and assembly of the anti-detachment component simple and convenient, and low in cost.

[0032] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A buoyancy device for submarine cable landing, characterized in that, include: Multiple first buoy structures, wherein the multiple first buoy structures are arranged in sequence and each is provided with a rope threading hole; The collection rope includes a rope body and two anti-detachment components. The rope body passes sequentially through the rope holes of the plurality of first buoy structures. The two anti-detachment components are respectively connected to both ends of the rope body, and the maximum size of the anti-detachment components along the radial direction of the rope body is larger than the diameter of the rope hole. A counterweight structure is connected to the rope to keep the rope under tension.

2. The buoyancy device for submarine cable landing according to claim 1, characterized in that, The counterweight structure includes multiple counterweights, which are located between different adjacent first buoy structures, and the counterweights are movably connected to the rope.

3. The buoyancy device for submarine cable landing according to claim 2, characterized in that, The counterweight includes a counterweight block and a buckle, the counterweight block being connected to the buckle, and the buckle being sleeved on the rope.

4. The buoyancy device for submarine cable landing according to claim 1, characterized in that, The first buoy structure includes a first float, a connecting seat, and a fixing member. The first float and the fixing member are respectively connected to both sides of the connecting seat, wherein the rope hole is provided in the connecting seat.

5. The buoyancy device for submarine cable landing according to claim 1, characterized in that, It also includes a second float structure, which is connected to one of the anti-detachment components. The second float structure is provided with a connector, wherein the first float structure adjacent to the second float structure is detachably fixedly connected to the connector.

6. The buoyancy device for submarine cable landing according to claim 5, characterized in that, The second buoy structure includes a second float and a connecting rope. The connecting member includes a connecting sleeve and a connecting plate. The connecting sleeve and the connecting plate are connected, wherein the connecting sleeve is fixedly sleeved on the outer periphery of the connecting rope and the connecting plate is screwed to the first buoy structure.

7. The buoyancy device for submarine cable landing according to claim 5, characterized in that, There are two second float structures, and the two second float structures are respectively connected to the two anti-detachment components.

8. The buoyancy device for submarine cable landing according to any one of claims 1-7, characterized in that, At least one of the aforementioned anti-detachment components is detachably provided.

9. The buoyancy device for submarine cable landing according to claim 8, characterized in that, Both anti-detachment components are detachably connected to the rope.

10. The buoyancy device for submarine cable landing according to claim 8, characterized in that, The end of the rope is fixedly fitted with a connecting sleeve, the diameter of which is smaller than the diameter of the rope hole. The anti-detachment component is a detachment tube, which is sleeved on the outer circumference of the connecting sleeve and screwed to the connecting sleeve.

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