Submarine cable laying dragging device

Abstract

The utility model discloses a submarine cable laying dragging device, belongs to the field of cable equipment, and solves the problems that a conventional dragging device in the prior art is not firm in fixation, easy to loosen, long in damage distance and the like. In the application, the traction end comprises a U-shaped traction end head and a plate group I, the plate group I is positioned at one end of the traction end head and is fixed with the traction end head, the cable fixing end is annular, a through hole penetrating through the cable fixing end is formed in the middle of the cable fixing end, and the cable fixing end is fixed with the plate group I through a screw rod; the cable end penetrates through the through hole in the middle of the cable fixing end, and the armored steel wire layer of the cable end is fixed to the cable fixing end. According to the submarine cable laying and dragging device, the submarine cable can be fastened in the structure of the submarine cable laying and dragging device, and meanwhile, the steel wire armor layer can be independently fixed between the end cover and the pressing plate, so that the submarine cable laying and dragging device is fixed more firmly.

Description

Technical Field

[0001] The utility model relates to a submarine cable laying and dragging device, belonging to the field of cable equipment. Background Art

[0002] At present, my country is vigorously developing its marine industry, and the marine engineering field represented by marine oil and gas and offshore wind power projects is constantly advancing into the deep sea. As the main transmission channel for electricity and information between sea and land, marine cables are becoming more and more important in practical engineering applications. With the increase in the laying length of marine cables and their own various protections, their laying weight and their own weight have greatly increased, thus putting forward a more severe test for the towing device.

[0003] The existing traction devices mostly use a mesh shell cylindrical structure made of steel wire, in which the marine cable is embedded and fixed with steel wire, and one end is connected to a traction machine to cooperate with the traction work. This method has the following defects: 1. The strength of the mesh shell structure is limited, and it is easy to break under the action of large traction. 2. If the traction device is fixed to the marine cable at a short distance, it cannot provide sufficient pulling force and it is easy to loosen; if the traction device is fixed to the marine cable at a long distance, the damage distance of the marine cable will increase accordingly, causing certain economic losses. Utility Model Content

[0004] The utility model provides a submarine cable laying and pulling device, which can fasten the marine cable inside its own structure and can fix the steel wire armor layer separately between the end cover and the pressing plate, so that the fixation is more firm.

[0005] The technical solution adopted by the utility model is a submarine cable laying and pulling device, comprising a cable end, a pulling end and a cable fixing end, wherein the pulling end is relatively fixed to the cable fixing end;

[0006] The pulling end includes a U-shaped pulling end and a plate group 1, wherein the plate group 1 is located at one end of the pulling end and is fixed to the pulling end;

[0007] The cable fixing end is annular, and has a through hole in the middle of the cable fixing end, and the cable fixing end is fixed to the plate group through a screw rod; the cable end passes through the through hole in the middle of the cable fixing end, and the armored steel wire layer of the cable end is fixed on the cable fixing end.

[0008] Optimally, in the above-mentioned submarine cable laying and pulling device, the plate group 1 includes an annular perforated plate 1 and an annular perforated plate 2;

[0009] The perforated plate 1 is welded and fixed to the traction end, and the perforated plate 2 is arranged parallel to the perforated plate 1 and spaced apart;

[0010] A plurality of trapezoidal plates are arranged between the second perforated plate and the first perforated plate and are respectively welded and fixed to the trapezoidal plates.

[0011] Optimally, in the above-mentioned submarine cable laying and pulling device, the end of the cable terminal passes through the annular middle hole of perforated plate one and perforated plate two.

[0012] Optimally, the above-mentioned submarine cable laying and pulling device, the cable fixing end comprises an annular bottom plate, and the cable end passes through the annular middle hole of the bottom plate;

[0013] An annular pressing block is arranged on the bottom plate, and the pressing block presses the armored steel wire layer of the cable end onto the bottom plate and fixes it by bolts.

[0014] Optimally, the above-mentioned submarine cable laying and pulling device has an annular end cover on the bottom plate, and the end cover is relatively fixed to the bottom plate;

[0015] The pressing block presses the armored steel wire layer of the cable end onto the end cover and is fixed to the end cover by bolts.

[0016] Optimally, the above-mentioned submarine cable laying and pulling device has an annular curved groove on the pressing block, and an annular protrusion matched with the curved groove is arranged on the end cover; the armored steel wire layer of the cable end is pressed between the curved groove and the annular protrusion.

[0017] Optimally, the above-mentioned submarine cable laying and pulling device, the cable fixing end also includes a flange;

[0018] The bottom plate is formed into a ring shape by butting two half rings together, and the bottom plate is attached to the flange; the bottom plate and the flange are fixed to the plate group through a screw rod.

[0019] Optimized, the above-mentioned submarine cable laying and pulling device also includes a protective cover, and the end cover and the pressure block are wrapped in the protective cover; the two ends of the protective cover are respectively attached to and fixed to the plate group 1 and the bottom plate.

[0020] The advantages of this application are: it can buckle and fit the marine cable over a large area, effectively increasing the friction between the two, and at the same time, the steel wire armor layer is fixed by the cooperation of the end cover and the pressure plate, which can provide sufficient tensile strength to meet the requirements of actual engineering installation. At the same time, this application can shorten the use length of the end of the submarine cable, and has a simple structure and is easy to use, which greatly saves the economic cost and time cost of laying the marine cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of this application;

[0022] Figure 2 Bit Figure 1 Side view of

[0023] Figure 3 for Figure 1 Enlarged view of point A. DETAILED DESCRIPTION

[0024] The technical features of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] As shown in the figure, the utility model is a submarine cable laying and pulling device, comprising a cable end 7, a pulling end and a cable fixing end, wherein the pulling end is relatively fixed to the cable fixing end.

[0026] The pulling end includes a U-shaped pulling end 1 and a plate group 1. The U-shaped opening end of the pulling end 1 is fixed to the plate group 1. The plate group 1 includes an annular perforated plate 1 2 and an annular perforated plate 2 3. In this embodiment, the outer diameter of the perforated plate 1 2 is smaller than that of the perforated plate 2 3. The perforated plate 1 2 is located in the U-shaped opening end of the pulling end 1 and is fixed to the pulling end 1 by welding.

[0027] The perforated plate 2 3 is arranged in parallel with the perforated plate 1 2 , and all the trapezoidal plates 31 are evenly spaced around the ring of the perforated plate 1 2 . The two ends of the trapezoidal plates 31 are respectively welded to the perforated plate 2 3 and the perforated plate 1 2 .

[0028] The annular middle through hole of the perforated plate 1 2 and the perforated plate 2 3 is much larger than the outer diameter of the cable terminal 7, and the end of the cable terminal 7 passes through the annular middle through hole of the perforated plate 1 2 and the perforated plate 2 3. The perforated plate 1 2, the perforated plate 2 3 and the trapezoidal plate 31 form a cage structure, which can protect the cable terminal 7 to a certain extent, reduce the friction and wear of the cable terminal 7 during transportation, and reduce the damage of the cable terminal 7 during the connection of the cable terminal 7.

[0029] The cable fixing end is annular in shape as a whole, and has a through hole passing through the cable fixing end in the middle, and the cable fixing end is fixed to the plate group 1 through a screw rod 10. The cable terminal 7 passes through the through hole in the middle of the cable fixing end, and the armored steel wire layer 8 of the cable terminal 7 is fixed on the cable fixing end.

[0030] Specifically, the cable fixing end includes an annular bottom plate 4, an annular pressing block 5, and an annular flange 9. In this embodiment, the bottom plate 4, the pressing block 5, and the flange 9 are coaxially arranged.

[0031] The bottom plate 4 is formed of two half rings butted together to form a ring, and the bottom plate 4 is attached to the flange 9. The bottom plate 4 and the flange 9 are fixed to the perforated plate 2 3 through the screw rod 10. The bottom plate 4 and the perforated plate 2 3 each have a plurality of through holes. After installation, the through holes on the bottom plate 4 and the perforated plate 2 3 are arranged opposite to each other. The two ends of the screw rod 10 pass through the through holes on the bottom plate 4 and the perforated plate 2 3 and are fixed by nuts.

[0032] The pressing block 5 presses the armored steel wire layer 8 of the cable terminal 7 onto the bottom plate 4 and fixes it with bolts. The bottom plate 4 has an annular end cover 6, which is fixed relative to the bottom plate 4. The pressing block 5 presses the armored steel wire layer 8 of the cable terminal 7 onto the end cover 6 and fixes it with the end cover 6 with bolts.

[0033] An annular curved groove 501 is constructed on the surface of the pressing block 5 facing the end cover 6, and an annular protrusion is constructed on the surface of the end cover 6 facing the pressing block 5 to cooperate with the curved groove 501. The armored steel wire layer 8 of the cable end 7 is pressed between the curved groove 501 and the annular protrusion.

[0034] When installing the cable terminal 7, the cable terminal 7 passes through the through hole in the middle of the flange 9, the through hole in the middle of the bottom plate 4, the through hole in the middle of the end cover 6, the through hole in the middle of the pressure block 5, the annular middle through hole of the perforated plate 2 3, and the annular middle through hole of the perforated plate 1 2 in sequence, and then the armored steel wire layer 8 of the cable terminal 7 is clamped between the pressure block 5 and the end cover 6 to further fix the cable terminal 7 and increase its firmness. This setting can effectively increase the friction force of the pressure block 5 and the end cover 6 on the armored steel wire layer 8, and increase the fastening firmness of the pressure block 5 and the end cover 6 to the cable terminal 7.

[0035] In this embodiment, the end cover 6 and the pressing block 5 are wrapped in the protective cover 11; the two ends of the protective cover 11 are respectively attached to and fixed to the plate group 1 and the bottom plate 4.

[0036] The outer end surface of the end cover 6 is sleeved with a protective cover 11, which wraps the end cover 6 and the pressure block 5, which can effectively reduce the contact between the end cover 6, the pressure block 5 and the bolts used for fixing and the air, and prevent the armored steel wire layer 8 from falling off due to rust and loosening. The protective cover 11 is fixedly connected through the perforated plate 2 3 and the groove of the bottom plate 4, and is fixedly connected with the pressure block 5 and the end cover 6 through the screw rod and the threaded hole.

[0037] The protective cover 11 is a metal plate with a trapezoidal structure. The two ends of the protective cover are clamped by the grooves of the perforated plate 2 3 and the bottom plate 4. A threaded hole is provided on the side parallel to the perforated plate 2 3. The threaded hole is on the same axis as the threaded holes of the end cap 6 and the pressure block 5. The three are fixedly connected by bolts. The protective cover 11 forms a closed space with the bottom plate 4 and the cable body, which can effectively prevent the end cap 6, the pressure block 5 and the internal steel wire armor layer from loosening due to rust.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A submarine cable laying and pulling device, comprising a cable end (7), a pulling end and a cable fixing end, wherein the pulling end and the cable fixing end are relatively fixed; characterized in that: The pulling end comprises a U-shaped pulling end (1) and a plate group 1, wherein the plate group 1 is located at one end of the pulling end (1) and is fixed to the pulling end (1); The cable fixing end is annular, and has a through hole in the middle of the cable fixing end that passes through the cable fixing end. The cable fixing end is fixed to a plate group through a screw rod (10); a cable end head (7) passes through the through hole in the middle of the cable fixing end, and an armored steel wire layer (8) of the cable end head (7) is fixed on the cable fixing end.

2. The submarine cable laying and pulling device according to claim 1, characterized in that: The plate group 1 comprises an annular perforated plate 1 (2) and an annular perforated plate 2 (3); The perforated plate 1 (2) is welded and fixed to the traction end (1), and the perforated plate 2 (3) is arranged parallel to the perforated plate 1 (2) and spaced apart; A plurality of trapezoidal plates (31) are provided between the second perforated plate (3) and the first perforated plate (2) and are respectively welded and fixed to the trapezoidal plates (31).

3. The submarine cable laying and pulling device according to claim 2, characterized in that: The end of the cable terminal (7) passes through the annular middle holes of the first perforated plate (2) and the second perforated plate (3).

4. The submarine cable laying and pulling device according to claim 1, characterized in that: The cable fixing end comprises an annular bottom plate (4), and the cable end (7) passes through an annular middle hole of the bottom plate (4); An annular pressing block (5) is arranged on the bottom plate (4), and the pressing block (5) presses the armored steel wire layer (8) of the cable end (7) onto the bottom plate (4) and fixes it by bolts.

5. The submarine cable laying and pulling device according to claim 4, characterized in that: The bottom plate (4) is provided with an annular end cover (6), and the end cover (6) is relatively fixed to the bottom plate (4); The pressing block (5) presses the armored steel wire layer (8) of the cable end (7) onto the end cover (6) and is fixed to the end cover (6) by bolts.

6. The submarine cable laying and pulling device according to claim 5, characterized in that: The pressing block (5) has an annular curved groove (501), and the end cover (6) is provided with an annular protrusion that cooperates with the curved groove (501); the armored steel wire layer (8) of the cable end (7) is pressed between the curved groove (501) and the annular protrusion.

7. The submarine cable laying and pulling device according to claim 4, characterized in that: The cable fixing end also includes a flange (9); The bottom plate (4) is formed by two half rings butted together to form a ring shape, and the bottom plate (4) is fitted on the flange (9); the bottom plate (4) and the flange (9) are fixed to the plate group through a screw rod (10).

Images