Submarine cable salvage and recovery device

Abstract

The utility model relates to the technical field of submarine cable salvage, in particular to a submarine cable salvage and recovery device, which comprises a three-jaw anchor body, a groove for placing a cable is arranged on the three-jaw anchor body, a fixed pressure rod for limiting the cable in the groove is arranged above the groove, and the fixed pressure rod is driven by a telescopic oil cylinder. According to the utility model, the cable can be prevented from falling off or moving easily during lifting, and the fishing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of submarine cable salvage, in particular to a submarine cable salvage and recovery device. Background Art

[0002] Submarine cables are an important part of cross-sea networking projects, an important link for providing electrical energy to islands and offshore operation platforms, and an important energy supply guarantee for offshore oil facilities. Submarine cables are vulnerable to the influence of geology, electricity, heat, mechanical and biological stresses during operation and are prone to failures. At present, for maintenance construction, the cable needs to be salvaged and recovered to the deck of the engineering ship. However, during the process of salvaging the anchor system, a sweeping anchor is used for salvage. After the three-claw anchor catches the cable, it is lifted as a whole. However, when lifting, the cable is likely to slip out or move around, so the salvage efficiency is low, and the success rate is also relatively low. Content of the Utility Model

[0003] In order to solve the problem that the cable is likely to slip out or move around during lifting in the background art, the utility model provides a submarine cable salvage and recovery device.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A submarine cable salvage and recovery device includes a three-claw anchor body. A groove for placing the cable is provided on the three-claw anchor body. Above the groove, a fixed pressure rod for limiting the cable in the groove is arranged, and the fixed pressure rod is driven by a telescopic oil cylinder.

[0006] Preferably, the three-claw anchor body includes a hollow main body and three groups of claw bodies arranged at the lower end of the main body. Each claw body includes two salvage plates fixed at the lower end of the three-claw anchor body, and the shape of the salvage plate is an inverted hook shape; the groove is provided on the salvage plate.

[0007] Preferably, the shape of the fixed pressure rod is bent, and the bent part of the fixed pressure rod is hinged between two salvage plates of the same group; an opening is formed on the main body between two salvage plates of the same group. The first end of the fixed pressure rod passes through the opening and is hinged to a connecting shaft, and the connecting shaft is driven by a telescopic oil cylinder; the upper end of the telescopic oil cylinder is fixed in the main body through a fixed shaft.

[0008] Preferably, the outer end of the salvage plate is an inclined surface, and the inclination direction of the inclined surface is inclined downward towards the groove.

[0009] Preferably, two salvage plates of the same group are connected by a plurality of support shafts.

[0010] Preferably, the pressing surface of the fixed pressure rod has anti-slip teeth.

[0011] Preferably, a lifting ring is provided at the top of the main body.

[0012] Preferably, the body is a thick-walled seamless steel pipe.

[0013] Preferably, the support shaft is a short-section round steel.

[0014] Preferably, the fishing plate is a steel plate.

[0015] Advantages of the present utility model:

[0016] (1) The present utility model provides an embodiment. The telescopic oil cylinder can drive the fixed pressure rod to press the cable in the groove, so as to prevent the cable from easily coming out or moving during lifting; the shape of the fishing plate is an inverted hook shape, which can make it easier to fish the cable.

[0017] (2) In an embodiment of the present utility model, the outer end of the fishing plate is an inclined surface, and the inclination direction of the inclined surface is inclined downward towards the groove, so that after the cable is fished, it can slide down along the inclined surface into the groove, which is convenient for subsequent limiting.

[0018] (3) In an embodiment of the present utility model, the pressing surface of the fixed pressure rod has anti-slip teeth, which can better press the cable, prevent the cable from coming out and limit the movement of the cable.

[0019] The present utility model can prevent the cable from easily coming out or moving during lifting, and improve the fishing efficiency. Description of the drawings

[0020] Figure 1 is a schematic structural diagram of the present utility model.

[0021] Figure 2 is a partial schematic structural diagram of the present utility model.

[0022] Figure 3 is a schematic structural diagram of the fixed pressure rod.

[0023] Figure 4 is a schematic bottom structural diagram of the present utility model.

[0024] Figure 5 is a schematic diagram of the anti-slip teeth.

[0025] In the figure: 1 - three-claw anchor body, 11 - body, 111 - opening, 112 - lifting ring, 12 - claw body, 121 - fishing plate, 122 - inclined surface, 13 - connecting shaft, 14 - fixed shaft, 2 - groove, 3 - fixed pressure rod, 31 - anti-slip teeth, 4 - telescopic oil cylinder, 5 - support shaft. Detailed implementation manners

[0026] The following further describes the present utility model with reference to the drawings.

[0027] AsFigures 1 to 5 As shown in the figure, the present utility model provides an embodiment:

[0028] A subsea cable salvage and recovery device includes a three-claw anchor body 1. The three-claw anchor body 1 has a groove 2 for placing the cable to facilitate subsequent positioning. Above the groove 2, there is a fixed pressing rod 3 for limiting the cable within the groove 2. The fixed pressing rod 3 is driven by a telescopic oil cylinder 4, and the telescopic oil cylinder 4 is a waterproof type. Through the telescopic oil cylinder 4, the fixed pressing rod 3 can press the cable within the groove 2, so as to prevent the cable from easily slipping out or moving during lifting.

[0029] The three-claw anchor body 1 includes a hollow body 11 and three groups of claw bodies 12 arranged at the lower end of the body 11. Each claw body 12 includes two salvage plates 121 fixed to the lower end of the three-claw anchor body 1. The shape of the salvage plate 121 is an inverted hook shape, which can more easily salvage the cable; the groove 2 is provided on the salvage plate 121.

[0030] The shape of the fixed pressing rod 3 is bent, which is convenient for pressing and retracting the fixed pressing rod 3. The bent part of the fixed pressing rod 3 is hinged between two salvage plates 121 of the same group; an opening 111 is provided on the body 11 between two salvage plates 121 of the same group. The head end of the fixed pressing rod 3 passes through the opening 111 and is hinged to a connecting shaft 13, and the connecting shaft 13 is driven by the telescopic oil cylinder 4; the upper end of the telescopic oil cylinder 4 is fixed within the body 11 through a fixed shaft 14.

[0031] After salvaging the cable, start the telescopic oil cylinder 4 to drive the connecting shaft 13 to move upward, thereby driving the head end of the fixed pressing rod 3 to move upward, causing the bent part of the fixed pressing rod 3 to swing around the hinge point, and then driving the tail end of the fixed pressing rod 3 to move downward, so as to press the cable within the groove 2 and complete the positioning of the cable.

[0032] When the cable needs to be taken out, start the telescopic oil cylinder 4 to drive the connecting shaft 13 to move downward, thereby driving the head end of the fixed pressing rod 3 to move downward, causing the bent part of the fixed pressing rod 3 to swing around the hinge point, and then driving the tail end of the fixed pressing rod 3 to move upward, so as to cancel the pressing on the cable.

[0033] In an embodiment of the present utility model, the outer end of the salvage plate 121 is an inclined surface 122, and the inclined direction of the inclined surface 122 is inclined downward towards the groove 2, so that after salvaging the cable, it can slide along the inclined surface 122 into the groove 2 to facilitate subsequent positioning.

[0034] In an embodiment of the present utility model, two salvage plates 121 of the same group are connected by a plurality of support shafts 5, which can strengthen the fixation of the salvage plates 121 and prevent the salvage plates 121 from bending.

[0035] In an embodiment of the present utility model, the pressing surface of the fixed pressing rod 3 is provided with anti-slip teeth 31, which can achieve better pressing on the cable, prevent the cable from slipping out and limit the movement of the cable.

[0036] In an embodiment of the present utility model, the top of the body 11 is provided with a lifting ring 112, which is convenient for hoisting the device.

[0037] In an embodiment of the present utility model, the body 11 is a thick-walled seamless steel pipe, which can improve the strength of the body 11.

[0038] In an embodiment of the present utility model, the support shaft 5 is a short-section round steel, which can improve the connection strength.

[0039] In an embodiment of the present utility model, the fishing plate 121 is a steel plate, which can improve the strength of the fishing plate 121.

[0040] In an embodiment of the present utility model, the first end of the fishing plate 121 penetrates into the body 11, which can strengthen the fixing effect of the fishing plate 121.

[0041] The waterproof telescopic oil cylinder and hinge in the present utility model are both prior arts, and those skilled in the art have been able to clearly understand them, so no detailed description will be given here. Moreover, the present utility model protects the structural characteristics of a submarine cable fishing and recovery device.

[0042] The above are only the preferred embodiments of the present utility model, and should not be construed as limitations to this application. Any equivalent changes and modifications made according to the scope of the patent application of the present utility model shall fall within the scope covered by the present utility model.

Claims

1. A submarine cable salvage and recovery device, comprising a three-claw anchor body, characterized in that: The three-claw anchor body is provided with a groove for placing the cable, and a fixed pressure rod for limiting the cable in the groove is arranged above the groove, and the fixed pressure rod is driven by a telescopic oil cylinder.

2. A submarine cable salvage and recovery device according to claim 1, characterized in that: The three-claw anchor body comprises a hollow body and three groups of claws arranged at the lower end of the body, and the claws comprise two salvage plates fixed at the lower end of the three-claw anchor body, and the shape of the salvage plates is an inverted hook shape; the salvage plates are provided with the grooves.

3. A submarine cable salvage and recovery device according to claim 2, characterized in that: The fixed pressure rod is in a bent shape, and the bent part of the fixed pressure rod is hinged between two salvage plates in the same group; an opening is provided on the main body between the two salvage plates in the same group, and the head end of the fixed pressure rod passes through the opening and is hinged to a connecting shaft, and the connecting shaft is driven by a telescopic cylinder; the upper end of the telescopic cylinder is fixed to the main body via a fixed shaft.

4. A submarine cable salvaging and recovery device according to claim 2, characterized in that: The outer end of the salvage plate is an inclined surface, and the inclined surface is inclined downward in a direction close to the groove.

5. The submarine cable salvage and recovery device according to claim 2, characterized in that: Two salvage plates in the same group are connected via a plurality of support shafts.

6. A submarine cable salvaging and recovery device according to any one of claims 1 to 5, characterized in that: The pressing surface of the fixed pressing rod is provided with anti-slip teeth.

7. The submarine cable salvage and recovery device according to claim 2, characterized in that: The top of the body is provided with a hanging ring.

8. The submarine cable salvage and recovery device according to claim 2, characterized in that: The body is a thick-walled seamless steel pipe.

9. The submarine cable salvaging and recovery device according to claim 5, characterized in that: The supporting shaft is a short section of round steel.

10. The submarine cable salvaging and recovery device according to claim 3, characterized in that: The salvage plate is a steel plate.

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