CN115993693A

CN115993693A - Submarine optical cable laying device

Info

Publication number: CN115993693A
Application number: CN202310093083.2A
Authority: CN
Inventors: 杨娟; 卢霞; 李青春; 于永洁; 赵洪亮
Original assignee: Hongan Group Co Ltd
Current assignee: Hongan Group Co Ltd
Priority date: 2023-02-06
Filing date: 2023-02-06
Publication date: 2023-04-21

Abstract

The invention belongs to the technical field of submarine optical cable laying, in particular to a submarine optical cable laying device which comprises an optical cable laying device main body, wherein a first bottom plate and a second bottom plate are fixedly connected to the bottom end of the optical cable laying device main body, the first bottom plate and the second bottom plate are in contact with the seabed, a connecting frame is fixedly connected to the optical cable laying device main body, and a connecting rope is fixedly connected to the connecting frame; through stirring the structural design of blade, in the boats and ships drive the optical cable and lay main part motion in-process, rivers can pass from the rivers passageway, rivers can drive the flabellum and rotate, the flabellum drives first turning block, rotate post and first bevel gear and rotate, first bevel gear drives second bevel gear and first pivot and rotates, first pivot drives the second turning block and stir the blade and rotate, the stirring blade of both sides can throw the soil of irrigation canals and ditches both sides to the irrigation canals in, can throw soil constantly in advancing the in-process, and need not the power supply, realized throwing soil to the function of irrigation canals and ditches buried optical cable.

Description

Submarine optical cable laying device

Technical Field

The invention relates to the technical field of submarine optical cable laying, in particular to a submarine optical cable laying device.

Background

The submarine cable is a wire wrapped by insulating materials and laid on the seabed for setting up telecommunication transmission among countries, and in the submarine cable laying process, a special submarine cable laying device is required to be used for laying, and the submarine cable laying device firstly digs a ditch on the seabed and then buries the cable.

The existing submarine optical cable laying device generally comprises water spraying equipment and sea plow equipment, wherein the water spraying equipment sprays a ditch on the seabed through a high-pressure water pump and a high-pressure water pipe, the sea plow equipment can embed an optical cable in a guiding manner, and natural sea current drives soil to cover the optical cable.

However, the conventional submarine optical cable laying device is inconvenient to bury the dug ditch, the natural ocean currents are used for burying the ditch, the optical cable cannot be effectively covered, soil covered by the natural ocean currents is loose, and the soil can be easily blown away by other ocean currents; accordingly, a submarine cable laying device is proposed to address the above-described problems.

Disclosure of Invention

In order to make up the defects of the prior art, the conventional submarine optical cable laying device is inconvenient to bury the dug ditch, the natural ocean current is used for burying the ditch, the optical cable cannot be effectively covered, the soil covered by the natural ocean current is loose, and the soil can be easily blown away by other ocean currents.

The technical scheme adopted for solving the technical problems is as follows: the submarine optical cable laying device comprises an optical cable laying device main body, wherein a first bottom plate and a second bottom plate are fixedly connected to the bottom end of the optical cable laying device main body, the first bottom plate and the second bottom plate are in contact with the seabed, a connecting frame is fixedly connected to the optical cable laying device main body, a connecting rope is fixedly connected to the connecting frame, the connecting rope is connected with a ship, an optical cable guide pipe is fixedly connected to the optical cable laying device main body, an optical cable is arranged in the optical cable guide pipe, the optical cable guide pipe is used for guiding the optical cable to the seabed for burying, a high-pressure water pump is arranged on the optical cable laying device main body, the high-pressure water pump is arranged on the high-pressure water pipe, the high-pressure water pipe is opposite to the seabed and is positioned in the middle of the optical cable laying device main body, the high-pressure water pump and the high-pressure water pipe are used for jetting out of a ditch on the seabed, and a soil throwing component is arranged on the optical cable guide pipe.

Preferably, the soil throwing assembly comprises a connecting block fixedly connected to the optical cable guide tube, two first box bodies are fixedly connected to the connecting block, rotating columns are connected to the first box bodies through bearings in a rotating mode, first rotating blocks located in the first box bodies are fixedly connected to the surfaces of the rotating columns, a plurality of fan blades are fixedly connected to the first rotating blocks, second box bodies are fixedly connected to the bottoms of the first box bodies, first bevel gears are fixedly connected to the bottom ends of the rotating columns, first rotating shafts are connected to the second box bodies through bearings in a rotating mode, second bevel gears are meshed with the first bevel gears, second rotating blocks are fixedly connected to the other ends of the first rotating shafts, a plurality of stirring blades are fixedly connected to the second rotating blocks, and the stirring blades are used for throwing soil on two sides of a ditch to the ditch.

Preferably, one of the second box bodies is rotatably connected with a second rotating shaft through a bearing, one end of the second rotating shaft is fixedly connected with a third bevel gear, one of the second rotating shaft is fixedly connected with a fourth bevel gear on the surface of the rotating column, the fourth bevel gear is meshed with the third bevel gear, the other end of the second rotating shaft is fixedly connected with a first rotating plate, a connecting column is fixedly connected on the first rotating plate, a limiting block is slidably connected on the connecting block, the connecting column is slidably connected in the limiting block, one end of the limiting block is rotatably connected with a connecting rod through a pin shaft, two support plates are fixedly connected to the bottom of the first box body, the connecting rod is rotatably connected onto the two support plates through the pin shaft, one end of the connecting rod is fixedly connected with a pressing plate, and the pressing plate is used for compacting and polishing soil.

Preferably, another one of the second box bodies is rotatably connected with a third rotating shaft through a bearing, one end of the third rotating shaft is fixedly connected with a fifth bevel gear, the other one of the third rotating shaft is fixedly connected with a sixth bevel gear on the surface of the rotating column, the sixth bevel gear is meshed with the fifth bevel gear, the other end of the third rotating shaft is fixedly connected with a second rotating plate, a connecting rod is rotatably connected to the second rotating plate through a pin shaft, the top end of the connecting rod is rotatably connected with a transverse plate through a pin shaft, one end of the transverse plate is fixedly connected with a vertical column, the bottom end of the vertical column is fixedly connected with a piston block, a piston cylinder is arranged under the piston block, the piston block is slidably inserted in the piston cylinder, a through hole is formed in the piston cylinder, the bottom of the piston cylinder is fixedly connected with a transverse block, and the bottom of the transverse block is fixedly connected with a vertical pipe.

Preferably, the optical cable guide tube is fixedly connected with a plugboard, the bottom end of the plugboard is conical, and the conical plugboard is used for being conveniently inserted into the seabed.

Preferably, two of the first boxes are provided with water flow channels, the water flow channels are used for seawater to flow through, and three of the fan blades are located in the water flow channels.

Preferably, two baffles are fixedly connected to the second box body, the baffles are used for blocking the influence of the seawater in front on the stirring blade, and the baffles are arc-shaped.

Preferably, two fixing plates are fixedly connected to the connecting block, guide posts are fixedly connected between the two fixing plates, lifting blocks are connected to the guide posts in a sliding mode, rectangular openings are formed in the lifting blocks, and the guide posts penetrate through the rectangular openings in a sliding mode.

Preferably, the limiting block is provided with a limiting opening, and the connecting column is slidably connected in the limiting opening.

Preferably, a round hole is formed in the top end of the piston cylinder, the piston block penetrates through the round hole in a sliding mode, a cavity is formed in the transverse block, and the transverse block is communicated with the piston cylinder and the vertical pipe.

The invention has the advantages that:

1. according to the invention, through the structural design of the stirring blades, water flows pass through the water flow channel in the process of driving the optical cable to lay the main body to move by the ship, the water flows drive the fan blades to rotate, the fan blades drive the first rotating block, the rotating column and the first bevel gear to rotate, the first bevel gear drives the second bevel gear and the first rotating shaft to rotate, the first rotating shaft drives the second rotating block and the stirring blades to rotate, the stirring blades on two sides can throw soil on two sides of a ditch into the ditch, and in the process of moving, the soil can be continuously thrown, a power source is not needed, the function of throwing the soil into the ditch to bury the optical cable is realized, and the problem that the conventional submarine optical cable laying device is inconvenient to bury the dug ditch is solved;

2. according to the invention, through the structural design of the pressing plate, in the rotating process of the fan blade and the stirring blade, the rotating column can drive the fourth bevel gear and the third bevel gear to rotate, the third bevel gear drives the second rotating shaft and the first rotating plate to rotate, the first rotating plate drives the connecting column to rotate, the connecting column drives the limiting block to do reciprocating motion in the vertical direction through the limiting opening, the limiting block drives one end of the connecting rod to do reciprocating motion in the vertical direction, the other end of the connecting rod drives the pressing plate to do reciprocating rotation around the pin shaft, the pressing plate can compact a ditch which is just thrown with soil, the soil is prevented from being blown away by ocean currents, and the problem that the soil covered by natural ocean currents is loose at present is solved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 3 is a second schematic view of a partial perspective view of the present invention;

FIG. 4 is a third schematic partial perspective view of the present invention;

FIG. 5 is a schematic cross-sectional view of a cross-piece of the present invention;

FIG. 6 is a schematic diagram of a partial perspective view of the present invention;

fig. 7 is a schematic cross-sectional view of a first cartridge of the present invention.

In the figure: 1. an optical cable laying device body; 2. a first base plate; 3. a second base plate; 4. a connecting frame; 5. a connecting rope; 6. an optical cable guide tube; 7. a high pressure water pump; 8. a connecting block; 9. a first case; 10. rotating the column; 11. a first rotating block; 12. a fan blade; 13. a second case; 14. a first bevel gear; 15. a first rotating shaft; 16. a second bevel gear; 17. a second rotating block; 18. stirring the blade; 19. a second rotating shaft; 20. a third bevel gear; 21. a fourth bevel gear; 22. a first rotating plate; 23. a connecting column; 24. a limiting block; 25. a connecting rod; 26. a support plate; 27. a pressing plate; 28. a third rotating shaft; 29. a fifth bevel gear; 30. a sixth bevel gear; 31. a second rotating plate; 32. a connecting rod; 33. a cross plate; 34. a vertical column; 35. a piston block; 36. a piston cylinder; 37. a through hole; 38. a transverse block; 39. a standpipe; 40. inserting plate; 41. a water flow channel; 42. a baffle; 43. a fixing plate; 44. a guide post; 45. a lifting block; 46. a rectangular opening; 47. a limit opening; 48. and a round hole.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, an underwater optical cable laying device comprises an optical cable laying device main body 1, a first bottom plate 2, a second bottom plate 3, an optical cable guide pipe 6 and a high-pressure water pump 7, wherein the first bottom plate 2 and the second bottom plate 3 are fixedly connected to the bottom end of the optical cable laying device main body 1, the first bottom plate 2 and the second bottom plate 3 are in contact with the sea floor, a connecting frame 4 is fixedly connected to the optical cable laying device main body 1, a connecting rope 5 is fixedly connected to the connecting frame 4, the connecting rope 5 is connected with a ship, the optical cable laying device main body 1 is connected to the ship through the connecting rope 5, the optical cable laying device main body 1 is sunk to the sea floor, the ship pulls the optical cable laying device main body 1 to move, the optical cable guide pipe 6 is fixedly connected to the optical cable laying device main body 1, an optical cable guide pipe 6 is arranged in the optical cable guide pipe 6 and used for guiding the optical cable to the sea floor to be buried in the sea floor, the high-pressure water pump 7 is mounted on the optical cable main body 1, the high-pressure water pump 7 is mounted on the high-pressure water pump 7, the high-pressure water pump is directly opposite to the high-pressure water pump 7, and the high-pressure water pump is directly opposite to the optical cable guide pipe 7 is arranged in the sea floor, and the high-pressure water pump is directly opposite to the high-pressure water pump 7, and the high-pressure water pump is directly arranged in the water pump.

The soil throwing assembly comprises a connecting block 8 fixedly connected to an optical cable guide tube 6, two first box bodies 9 are fixedly connected to the connecting block 8, a rotating column 10 is fixedly connected to the first box bodies 9 through bearings in a rotating mode, first rotating blocks 11 positioned in the first box bodies 9 are fixedly connected to the surfaces of the rotating column 10, a plurality of fan blades 12 are fixedly connected to the first rotating blocks 11, in the forward advancing process of an optical cable laying device main body 1, seawater passes through the first box bodies 9 and can drive the fan blades 12 to rotate, the fan blades 12 can drive the first rotating blocks 11 to rotate, second box bodies 13 are fixedly connected to the bottoms of the first box bodies 9 through bearings, first bevel gears 14 are fixedly connected to the bottoms of the rotating column 10, the rotating column 10 drives the first bevel gears 14 to rotate, second bevel gears 16 are fixedly connected to one ends of the first rotating blocks 11, the second bevel gears 16 and the first bevel gears 14 are meshed with the first rotating blocks 14, the second bevel gears 16 are meshed with the second bevel gears 16, the second bevel gears 17 are driven to the second rotating blocks 17 to drive the second bevel gears 17 to rotate, and the second bevel gears 17 are fixedly connected to the second bevel gears 17, and the second bevel gears 17 are driven to rotate by the second bevel gears 17 to the two sides of the second rotating blocks, and the second bevel gears 17 are buried in the two sides of the ditch 17 are driven by the second bevel gears 17, and the second bevel gears 17 are fixedly connected to rotate the second bevel gears 17.

One of the two box bodies 13 is rotatably connected with a second rotating shaft 19 through a bearing, one end of the second rotating shaft 19 is fixedly connected with a third bevel gear 20, one of the two box bodies is fixedly connected with a fourth bevel gear 21 on the surface of a rotating column 10, the fourth bevel gear 21 is meshed with the third bevel gear 20, meanwhile, the rotating column 10 can drive the fourth bevel gear 21 to rotate, the fourth bevel gear 21 drives the third bevel gear 20 to rotate, the third bevel gear 20 drives the second rotating shaft 19 to rotate, the other end of the second rotating shaft 19 is fixedly connected with a first rotating plate 22, the second rotating shaft 19 drives a first rotating plate 22 to rotate, a connecting column 23 is fixedly connected with the first rotating plate 22, a limiting block 24 is connected with the connecting column 23 in a sliding manner in the limiting block 24, the first rotating plate 22 drives the limiting block 24 to reciprocate in the vertical direction through the connecting column 23, one end of the limiting block 24 is rotatably connected with a connecting rod 25 through a pin shaft, the bottoms of the two box bodies 9 are fixedly connected with a supporting plate 26, the connecting rod 25 is rotatably connected with the two supporting plates 26 through the pin shafts, the other ends of the two supporting plates 25 are rotatably connected with a connecting rod 27 through the pin shafts, and the other ends of the connecting rod 27 are rotatably connected with a pressing plate 27 in a reciprocating manner, and the other end of the pressing plate 27 is fixedly connected with a reciprocating manner, and the other end of the pressing plate 27 is prevented from being rotated by the pressing plate 27 and can be driven by the reciprocating pressing plate 27.

The other second box 13 is rotatably connected with a third rotating shaft 28 through a bearing, one end of the third rotating shaft 28 is fixedly connected with a fifth bevel gear 29, the other surface of the rotating column 10 is fixedly connected with a sixth bevel gear 30, the sixth bevel gear 30 is meshed with the fifth bevel gear 29, when soil is thrown, one rotating column 10 drives the sixth bevel gear 30, the sixth bevel gear 30 drives the fifth bevel gear 29 to rotate, the fifth bevel gear 29 drives the third rotating shaft 28 to rotate, the other end of the third rotating shaft 28 is fixedly connected with a second rotating plate 31, the third rotating shaft 28 drives the second rotating plate 31 to rotate, the second rotating plate 31 is rotatably connected with a connecting rod 32 through a pin shaft, the second rotating plate 31 drives the connecting rod 32 to move, the top end of the connecting rod 32 is rotatably connected with a transverse plate 33 through a pin shaft, the connecting rod 32 drives the transverse plate 33 to reciprocate in the vertical direction, the one end rigid coupling of diaphragm 33 has vertical post 34, the bottom rigid coupling of vertical post 34 has piston piece 35, and the diaphragm 33 drives vertical post 34 and piston piece 35 and do reciprocating motion in vertical direction, be equipped with piston cylinder 36 under piston piece 35, piston piece 35 slides and inserts in piston cylinder 36, and piston piece 35 is in piston cylinder 36 back and forth movement, through-hole 37 has been seted up on piston cylinder 36, the bottom rigid coupling of piston cylinder 36 has horizontal piece 38, the bottom rigid coupling of horizontal piece 38 has standpipe 39, and when piston piece 35 is higher than through-hole 37, sea water can be inhaled in piston cylinder 36, and when piston piece 35 moves down, piston piece 35 can be with sea water from standpipe 39 blowout below through piston cylinder 36 and horizontal piece 38, and the soil that stirs blade 18 can be thrown down to the ditch for soil falls into the ditch fast.

The optical cable guide tube 6 is fixedly connected with the plugboard 40, the bottom end of the plugboard 40 is conical, the conical plugboard 40 is used for being conveniently inserted into the seabed, and the plugboard 40 can be inserted into a ditch through the plugboard 40, so that an open circuit can be formed for the buried optical cable.

The two first boxes 9 are provided with water flow channels 41, the water flow channels 41 are used for allowing seawater to flow through, three blades 12 are located in the water flow channels 41, and when the optical cable laying device main body 1 advances forwards, the seawater can pass through the water flow channels 41 of the first boxes 9, and the seawater can drive the blades 12 to rotate after passing through.

Two baffles 42 are fixedly connected to the second box 13, the baffles 42 are used for blocking the influence of the seawater in front on the stirring vane 18, the baffles 42 are arc-shaped, and the baffles 42 can block the impact of the seawater in front on the stirring vane 18 to prevent the stirring vane 18 from being influenced.

Two fixed plates 43 are fixedly connected to the connecting block 8, guide posts 44 are fixedly connected between the two fixed plates 43, lifting blocks 45 are slidably connected to the guide posts 44, rectangular openings 46 are formed in the lifting blocks 45, the guide posts 44 slidably penetrate through the rectangular openings 46, and in the vertical movement process of the limiting block 24, the lifting blocks 45 slidably move on the guide posts 44 through the rectangular openings 46, so that the limiting block 24 is limited in the vertical direction.

The limiting block 24 is provided with a limiting opening 47, the connecting column 23 is slidably connected in the limiting opening 47, and when the connecting column 23 slides in the limiting opening 47, the connecting column 23 can drive the limiting opening 47 and the limiting block 24 to move in the vertical direction.

The top end of the piston cylinder 36 is provided with a round hole 48, the piston block 35 penetrates through the round hole 48 in a sliding mode, in the moving process of the piston block 35 and the transverse plate 33, the piston block 35 slides in the round hole 48 of the piston cylinder 36 to limit the piston block 35 and the transverse plate 33 in the vertical direction, a cavity is formed in the transverse block 38, the transverse block 38 is communicated with the piston cylinder 36 and the vertical pipe 39, and seawater entering from the through hole 37 is sprayed downwards from the transverse block 38 and the vertical pipe 39.

Working principle: when the marine optical cable laying device is used, an optical cable on a ship passes through the optical cable guide pipe 6, the optical cable laying device main body 1 is connected to the ship through the connecting rope 5, the optical cable laying device main body 1 is placed into the sea to sink to the sea, the ship pulls the optical cable laying device main body 1 to move, the high-pressure water pump 7 is started, the high-pressure water pump 7 washes out a ditch on the sea floor through the high-pressure water pipe, the optical cable guide pipe 6 guides the optical cable into the ditch, the inserting plate 40 is inserted into the ditch, the optical cable is buried open circuit, in the forward advancing process of the optical cable laying device main body 1, seawater passes through the water flow channel 41 of the first box body 9, the seawater passes through the water flow channel and can drive the fan blades 12 to rotate, the fan blades 12 can drive the first rotating block 11 to rotate, the first rotating block 11 drives the rotating column 10 to rotate, the rotating column 10 drives the first bevel gear 14 to rotate, the first bevel gear 14 drives the second bevel gear 16 to rotate, the second bevel gear 16 drives the first rotating shaft 15 to rotate, the first rotating shaft 15 drives the second rotating block 17 to rotate, the second rotating block 17 drives the stirring blade 18 to rotate, the stirring blade 18 can throw the soil at two sides of a ditch into the ditch, the purpose of burying a buried optical cable by utilizing potential energy of water flow under the condition of no power source is achieved, one rotating column 10 can drive the sixth bevel gear 30 while throwing the soil, the sixth bevel gear 30 drives the fifth bevel gear 29 to rotate, the fifth bevel gear 29 drives the third rotating shaft 28 to rotate, the third rotating shaft 28 drives the second rotating plate 31 to rotate, the second rotating plate 31 drives the connecting rod 32 to move, the connecting rod 32 drives the transverse plate 33 to reciprocate in the vertical direction, the transverse plate 33 drives the upstand 34 and the piston block 35 to reciprocate in the vertical direction, the piston block 35 reciprocates in the piston cylinder 36 when the piston block 35 is higher than the through hole 37, seawater is sucked into the piston cylinder 36, when the piston block 35 moves downwards, the piston block 35 can spray the seawater downwards from the vertical pipe 39 through the piston cylinder 36 and the transverse block 38, the sprayed water can throw the stirring blade 18 to the soil of the ditch to blow downwards, so that the soil quickly falls into the ditch, meanwhile, the other rotating column 10 can drive the fourth bevel gear 21 to rotate, the fourth bevel gear 21 drives the third bevel gear 20 to rotate, the third bevel gear 20 drives the second rotating shaft 19 to rotate, the second rotating shaft 19 drives the first rotating plate 22 to rotate, the first rotating plate 22 drives the limiting block 24 to reciprocate in the vertical direction through the connecting column 23, the limiting block 24 drives one end of the connecting rod 25 to reciprocate around the pin shaft, the other end of the connecting rod 25 can drive the pressing plate 27 to reciprocate, the pressing plate 27 can compact the soil on the ditch, and the soil is prevented from being scattered by ocean currents.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims

1. The utility model provides a submarine optical cable laying device, includes optical cable laying device main part (1), the bottom rigid coupling of optical cable laying device main part (1) has first bottom plate (2) and second bottom plate (3), first bottom plate (2) and second bottom plate (3) and submarine contact, the rigid coupling has link (4), its characterized in that on optical cable laying device main part (1): the cable laying device is characterized in that a connecting rope (5) is fixedly connected to the connecting frame (4), the connecting rope (5) is connected with a ship, an optical cable guide tube (6) is fixedly connected to the cable laying device main body (1), an optical cable is arranged in the optical cable guide tube (6), the optical cable guide tube (6) is used for guiding the optical cable to the seabed to be buried, a high-pressure water pump (7) is mounted on the cable laying device main body (1), a high-pressure water pipe is mounted on the high-pressure water pump (7), the high-pressure water pipe is opposite to the seabed and is located in the middle of the cable laying device main body (1), the high-pressure water pump (7) and the high-pressure water pipe are used for jetting out a ditch on the seabed, and a soil throwing component is mounted on the optical cable guide tube (6).

2. The submarine cable laying device according to claim 1, wherein: the soil throwing assembly comprises a connecting block (8) fixedly connected to an optical cable guide tube (6), two first box bodies (9) are fixedly connected to the connecting block (8), rotating columns (10) are connected to the first box bodies (9) through bearings in a rotating mode, first rotating blocks (11) located in the first box bodies (9) are fixedly connected to the surfaces of the rotating columns (10), a plurality of fan blades (12) are fixedly connected to the first rotating blocks (11), second box bodies (13) are fixedly connected to the bottoms of the first box bodies (9), first bevel gears (14) are fixedly connected to the bottom ends of the rotating columns (10), first rotating shafts (15) are connected to the second box bodies (13) through bearings in a rotating mode, second bevel gears (16) are meshed with the first bevel gears (14), second rotating blocks (17) are fixedly connected to the other ends of the first rotating shafts (15), and a plurality of blades (18) are fixedly connected to the second rotating blocks (17), and the second rotating blocks (17) are fixedly connected to the grooves and are used for throwing soil to two sides of the grooves (18).

3. The submarine cable laying device according to claim 2, wherein: one of them be connected with second pivot (19) through the bearing rotation on second box body (13), the one end rigid coupling of second pivot (19) has third bevel gear (20), one of them the surface rigid coupling of rotation post (10) has fourth bevel gear (21), fourth bevel gear (21) and third bevel gear (20) meshing, the other end rigid coupling of second pivot (19) has first rotating plate (22), the rigid coupling has spliced pole (23) on first rotating plate (22), sliding connection has stopper (24) on connecting block (8), spliced pole (23) sliding connection is in stopper (24), the one end of stopper (24) is connected with connecting rod (25) through the round pin axle rotation, two the bottom rigid coupling of first box body (9) has extension board (26), connecting rod (25) are connected on two extension boards (26) through the round pin axle rotation, the one end rigid coupling of connecting rod (25) has clamp plate (27), clamp plate (27) are used for the soil that the compaction comes.

4. A submarine cable laying device according to claim 3, wherein: the other one the second box body (13) is rotationally connected with a third rotating shaft (28) through a bearing, one end of the third rotating shaft (28) is fixedly connected with a fifth bevel gear (29), the other one the surface of the rotating column (10) is fixedly connected with a sixth bevel gear (30), the sixth bevel gear (30) is meshed with the fifth bevel gear (29), the other end of the third rotating shaft (28) is fixedly connected with a second rotating plate (31), the second rotating plate (31) is rotationally connected with a connecting rod (32) through a pin shaft, the top end of the connecting rod (32) is rotationally connected with a transverse plate (33) through a pin shaft, one end of the transverse plate (33) is fixedly connected with a vertical column (34), the bottom end of the vertical column (34) is fixedly connected with a piston block (35), a piston cylinder (36) is arranged under the piston block (35) and is slidably inserted in the piston cylinder (36), a through hole (37) is formed in the piston cylinder (36), the bottom of the piston cylinder (36) is fixedly connected with a transverse block (38), and the bottom of the transverse column (38) is fixedly connected with a vertical column (39).

5. The submarine cable laying device according to claim 4, wherein: the optical cable guide tube (6) is fixedly connected with a plugboard (40), the bottom end of the plugboard (40) is conical, and the conical plugboard (40) is used for being conveniently inserted into the seabed.

6. The submarine cable laying device according to claim 5, wherein: two first box bodies (9) are provided with water flow channels (41), the water flow channels (41) are used for seawater to flow through, and three fan blades (12) are located in the water flow channels (41).

7. The submarine cable laying device according to claim 6, wherein: two baffles (42) are fixedly connected to the two second box bodies (13), the baffles (42) are used for blocking the influence of the seawater in front on the stirring blades (18), and the baffles (42) are arc-shaped.

8. The submarine cable laying device according to claim 7, wherein: two fixed plates (43) are fixedly connected to the connecting block (8), guide columns (44) are fixedly connected between the two fixed plates (43), lifting blocks (45) are connected to the guide columns (44) in a sliding mode, rectangular openings (46) are formed in the lifting blocks (45), and the guide columns (44) penetrate through the rectangular openings (46) in a sliding mode.

9. The submarine cable laying device according to claim 8, wherein: and the limiting block (24) is provided with a limiting opening (47), and the connecting column (23) is slidably connected in the limiting opening (47).

10. The submarine cable laying device according to claim 9, wherein: round holes (48) are formed in the top end of the piston cylinder (36), the piston blocks (35) penetrate through the round holes (48) in a sliding mode, cavities are formed in the transverse blocks (38), and the transverse blocks (38) are communicated with the piston cylinder (36) and the vertical pipes (39).