Fixed optical cable loading and unloading frame for main cable cabin of cable laying ship and working method of fixed optical cable loading and unloading frame

Abstract

The invention relates to the technical field of optical cable laying, and discloses an optical cable laying ship cable cabin fixed type optical cable loading and unloading frame and a working method thereof.The loading and unloading frame comprises loading and unloading frame vertical legs, a loading and unloading frame frame, C-side transverse carrier rollers, A-side vertical rollers and B-side vertical rollers, the A-side vertical rollers are perpendicular to the arc tangent line of side guardrails in direction, and the B-side vertical rollers are perpendicular to the arc tangent line of the loading and unloading frame frame in direction; the C-side transverse carrier roller is arranged on the loading and unloading frame, the A-side vertical roller, the B-side vertical roller and the C-side transverse carrier roller are connected with the loading and unloading frame through pin shafts, the loading and unloading frame is in an arc shape, and the arc radius of the loading and unloading frame is larger than the minimum bending radius of a current universal submarine optical cable. An optical cable is guided into an optical cable guide rail; the wheel moving type cable barging device drags an optical cable in the right optical cable cabin to be transmitted into the Y-shaped optical cable guide rail through the optical cable loading and unloading frame and transmitted into the lower optical cable cabin through the detachable square roller frame. On the premise of ensuring no damage risk of the optical cable, the loading and unloading efficiency of the optical cable is improved, and smooth submarine optical cable laying is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of optical cable laying, in particular to a fixed optical cable loading and unloading rack in a main cable cabin of a cable laying ship and a working method thereof. Background Art

[0002] With the development of communication technology, laying of submarine optical cables is one of the key steps in establishing submarine communication networks. Its laying efficiency and quality directly affect the construction and operation of communication networks. As the main tool for laying optical cables, the loading and unloading efficiency of optical cables in the main cable cabin of submarine optical cable laying vessels plays a vital role in the laying process. However, traditional optical cable loading and unloading equipment has many problems in actual operation: 1. The optical cable is often blocked when sliding from the lower cargo hold to the main exit. The design of the traditional loading and unloading rack fails to effectively deal with the resistance of the optical cable during the bending process, resulting in the optical cable being often blocked during the sliding process, affecting the loading and unloading efficiency and laying progress; 2. There is friction damage during the loading and unloading process of the optical cable. Due to the large friction between the optical cable and the loading and unloading rack, it is easy to cause wear and damage to the surface of the optical cable, which reduces the service life of the optical cable and increases the maintenance cost; 3. The design of traditional loading and unloading frames usually lacks an integrated connection with the main cable hatch guide frame, which makes installation difficult. The installation process requires additional adjustments and reinforcements, increasing the difficulty and risk of construction.

[0003] In the document CN202221665248, a rail transit communication optical cable transportation device is disclosed, including an optical cable roller, the four corners of the optical cable roller are sleeved with a limit frame, the middle of both sides of the limit frame are fixedly connected with a suction cup, and the four sides of the optical cable roller are provided with two positioning holes. This structure can only transport the optical cable, and after the optical cable reaches the destination, when the optical cable is disassembled, this device is easy to cause wear to the optical cable.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0005] In order to solve the above problems, the present invention discloses a fixed optical cable loading and unloading rack in the main cable cabin of a cable-laying ship and a working method thereof, which improves the loading and unloading efficiency of the optical cable without the risk of damage to the optical cable, thereby ensuring the smooth progress of the submarine optical cable laying project.

[0006] The technical solution of the present invention is: a fixed optical cable loading and unloading rack for an optical cable laying ship cable cabin, the optical cable loading and unloading rack is located on both sides of the hatch in mirror symmetry, the loading and unloading rack comprises loading and unloading rack vertical legs, a loading and unloading rack frame, C-side transverse rollers, A-side vertical rollers, and B-side vertical rollers, the direction of the A-side vertical roller is perpendicular to the arc tangent of the side guardrail, the direction of the B-side vertical roller is perpendicular to the arc tangent of the loading and unloading rack frame, the C-side transverse roller is arranged on the loading and unloading rack frame, the A-side vertical roller, the B-side vertical roller and the C-side transverse roller are all connected to the loading and unloading rack frame through a pin shaft, the loading and unloading rack frame is arc-shaped and its arc radius is greater than the minimum bending radius of the current common submarine optical cable.

[0007] By adopting the above technical solution, the friction damage when the optical cable contacts the loading and unloading rack during loading and unloading is reduced, the risk of surface wear and damage of the optical cable is reduced, the service life of the optical cable is extended, and the maintenance cost is reduced. The arc-shaped frame of the loading and unloading rack effectively avoids the jamming and damage of the optical cable, ensuring the smooth and safe operation of the optical cable.

[0008] Preferably, the upper portion of the loading and unloading rack is docked with the Y-shaped optical cable guide rail, and the lower portion of the loading and unloading rack is docked with the loading and unloading port of the cable cabin.

[0009] Preferably, the side of the loading and unloading rack away from the guide cage is set as side A, the side close to the guide cage is set as side B, the curved surface surrounded by the loading and unloading rack frame is set as side C, and the side A of the loading and unloading rack is provided with a side guardrail.

[0010] Preferably, the loading and unloading rack frame is generally in an upward arc shape, and the loading and unloading rack legs are respectively located at the bottom of the loading and unloading rack frame and fixed to the cabin floor through circular flanges, and the loading and unloading rack legs are arranged at different heights in the direction toward the bow and stern.

[0011] By adopting the above technical solution, the loading and unloading rack as a whole tends to be oriented to one side, so that when the optical cable is being loaded and unloaded, the phenomenon of the optical cable being stuck and damaged can be avoided, thereby ensuring the smooth operation of the optical cable.

[0012] Preferably, the C-side transverse rollers are perpendicular to the positions between the loading and unloading frame frames in sequence, the A-side vertical rollers and the B-side vertical rollers are respectively located between the C-side transverse rollers, and the A-side vertical rollers, the B-side vertical rollers and the C-side transverse rollers include roller bodies.

[0013] By adopting the above technical solution, the A-side vertical rollers and the B-side vertical rollers are placed in sequence between the C-side transverse rollers, so that when the optical cable is loaded and unloaded and hits the loading and unloading rack, the vertical rollers on both sides limit it and also guide it. The bottom C-side transverse roller guides the optical cable.

[0014] Preferably, the roller body includes a roller, a roller shaft and a roller base. The top of the roller base is provided with an inwardly recessed U-shaped groove, and the roller shaft is provided in the U-shaped groove. The roller shaft passes through the roller, and the roller shaft passes through the roller base through a pin shaft for rotational connection. A cotter pin passes through a gap in the pin shaft, and the roller rotates axially around the roller shaft.

[0015] By adopting the above technical solution, the roller shaft is located exactly in the U-shaped groove, and the U-shaped groove serves to limit the roller shaft. When the roller shaft is located in the U-shaped groove and drives the roller to rotate, the roller always rotates around the center of the roller shaft, ensuring the smooth transmission of the optical cable on the roller.

[0016] Preferably, the roller base at the top of the vertical roller on the A side is connected to a side guardrail, the bottom of the vertical roller on the A side is connected to the loading and unloading frame through the roller base, the two ends of the transverse roller on the C side are connected to the loading and unloading frame through the roller base, the bottom of the vertical roller on the B side is connected to the loading and unloading frame through the roller base, and the top is welded together with the notch guide cage.

[0017] By adopting the above technical solution, the side guardrail can play a limiting role when the optical cable passes through, preventing the optical cable from slipping from the side, and the C-side lateral roller can guide the optical cable to prevent wear on the optical cable.

[0018] A working method of a fixed optical cable loading and unloading rack in a cable cabin for laying optical cables, comprising the following steps: Step 1: Preparation Carry out corresponding preparation work according to working conditions; Step 2: Working Condition Selection For laying of optical cables, execute step 3; for recovery of optical cables, execute step 4; for transmission of optical cables between two optical cable compartments, execute step 5; Step 3: Laying out optical cables The straight-line cable laying machine pulls the optical cable on the right bow side from the lower cable compartment through the loading and unloading rack to the Y-shaped cable guide and into the cable guide; Step 4: Cable Recycling The drum-type cable laying machine pulls the optical cable on the left stern side from the optical cable guide rail through the Y-shaped optical cable guide rail to the loading and unloading rack and then to the lower optical cable cabin; Step 5: Optical cable transmission between two cable compartments For the optical cable being transmitted from the optical cable compartment on the left stern side to the optical cable compartment on the right bow side, step S51 is executed; S51: The wheel-movable cable drawer pulls the optical cable in the left optical cable compartment through the detachable square roller frame installed on the optical cable inlet and outlet compartment guide frame to the optical cable guide rail, and then sequentially transmits the optical cable to the lower cable compartment through the Y-shaped optical cable guide rail and the optical cable loading and unloading frame installed above the right optical cable compartment; For the optical cable being transmitted from the optical cable compartment on the right bow side to the optical cable compartment on the left stern side, step S52 is executed; S52: The wheel-type mobile cable drawer pulls the optical cable in the right optical cable compartment through the optical cable loading and unloading rack to the Y-shaped optical cable guide rail, and then transmits it to the lower cable compartment through the detachable square roller frame installed on the left optical cable inlet and outlet guide frame.

[0019] Preferably, the top of the loading and unloading rack is connected to the optical cable guide rail, and the bottom of the loading and unloading rack extends to the lower optical cable storage cabin, a side guardrail is provided on the side of the loading and unloading rack away from the optical cable in-and-out cabin guide frame, and the side close to the optical cable in-and-out cabin guide frame is welded to the optical cable in-and-out cabin guide frame through a straight steel pipe, and an optical cable anti-jump device is provided at the cable hatch. The loading and unloading rack works in coordination with a detachable square roller frame installed on the optical cable in-and-out cabin guide frame. The space enclosed by the optical cable anti-jump device and the arc-shaped edge of the optical cable hatch, below which is the lower optical cable cabin.

[0020] Preferably, a linear cable laying machine is used for laying optical cables, a drum cable laying machine is used for recovering optical cables, a wheel-type mobile cable laying machine moves along the direction of the optical cable guide rail and provides power for the transmission of the optical cable on the optical cable guide rail, and the top of the loading and unloading rack is arc-shaped, and the radius of the arc is the distance between the optical cable guide rail and the floor of the cabin.

[0021] By adopting the above technical solution, the optical cable can slide smoothly during the wiring process, avoiding damage to the optical cable or obstruction of wiring due to excessive friction; this design not only improves the efficiency of optical cable wiring, but also extends the service life of the optical cable and improves the reliability and safety of the optical cable.

[0022] The benefits of the present invention are as follows: 1. The present invention arranges an optical cable loading and unloading rack at the cable hatch, and the loading and unloading rack frame adopts an arc-shaped slideway, which ensures smooth loading and unloading of the optical cable when the optical cable enters and exits, greatly improves the loading and unloading efficiency, shortens the operation time, and increases the project progress.

[0023] 2. The arc-shaped slideway of the loading and unloading frame of the present invention and the guardrails on both sides thereof are rollers, which avoids friction damage to the optical cable when it contacts the loading and unloading frame during loading and unloading, reduces the risk of wear and damage to the surface of the optical cable, extends the service life of the optical cable, and reduces maintenance costs.

[0024] 3. The present invention reduces the risk of damage to the optical cable. The arc radius of the arc-shaped slideway of the loading and unloading rack is larger than the minimum bending radius of the currently common submarine optical cable, which effectively avoids the phenomenon of optical cable jamming and damage, and ensures the smooth and safe operation of the optical cable.

[0025] 4. The present invention simplifies installation and maintenance. The integrated design and precise connection scheme simplify the installation and maintenance process of the loading and unloading rack, reduce the construction difficulty and risk, and improve the reliability and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a use scenario of the optical cable loading and unloading rack of the present invention; Figure 2 It is a structural diagram of the optical cable loading and unloading rack of the present invention; Figure 3 This is a structural diagram of the connection between the optical cable loading and unloading rack roller and the loading and unloading rack pin of the present invention; Figure 4 A flow chart of using the optical cable loading and unloading rack of the present invention; Figure 5 It is a schematic diagram of laying optical cables of the present invention; Figure 6 It is a schematic diagram of optical cable recovery of the present invention; Figure 7 It is a schematic diagram of the transmission of the optical cable of the present invention between two optical cable cabins.

[0027] Among them: 11. Guide cage, 13. Optical cable anti-jump device, 14. Removable square roller frame, 16. Lower cable cabin, 17. Y-shaped cable guide rail, 18. Cable guide rail, 19. Cable cabin, 20. Drum cable laying machine, 21. Linear cable laying machine, 22. Wheel-movable cable laying device, 40. Loading and unloading rack; 41. Loading and unloading rack legs, 42. Loading and unloading rack frame, 43. C-side lateral roller, 44. Side guardrail, 45. A-side vertical roller, 46. B-side vertical roller, 51. Roller, 52. Split pin, 53. Roller shaft, 54. Pin shaft, 55. Roller base, 55-1, U-shaped groove. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] like Figure 1-4 As shown, a fixed optical cable loading and unloading rack for an optical cable laying ship cable cabin, the optical cable loading and unloading rack 40 is located on both sides of the hatch in mirror symmetry, the loading and unloading rack 40 includes loading and unloading rack vertical legs 41, a loading and unloading rack frame 42, C-side transverse rollers 43, A-side vertical rollers 45, and B-side vertical rollers 46. The direction of the A-side vertical roller 45 is perpendicular to the arc tangent of the side guardrail 44, and the direction of the B-side vertical roller 46 is perpendicular to the arc tangent of the loading and unloading rack frame 42. The C-side transverse roller 43 is arranged on the loading and unloading rack frame 42, and the A-side vertical roller 45, the B-side vertical roller 46 and the C-side transverse roller 43 are all connected to the loading and unloading rack frame 42 through a pin shaft 54. The loading and unloading rack frame 42 is arc-shaped and its arc radius is larger than the minimum bending radius of the current common submarine optical cable.

[0030] The friction damage when the optical cable contacts the loading and unloading rack 40 during loading and unloading reduces the risk of wear and damage on the optical cable surface, extends the service life of the optical cable, and reduces maintenance costs. The arc-shaped loading and unloading rack frame 42 effectively avoids the jamming and damage of the optical cable, ensuring the smooth and safe operation of the optical cable.

[0031] The top of the loading and unloading rack 40 is docked with the Y-shaped cable guide rail 17, and the bottom of the loading and unloading rack 40 is docked with the loading and unloading port of the cable cabin 19.

[0032] The side of the loading and unloading rack 40 away from the guide cage 11 is set as the A side, the side close to the guide cage 11 is set as the B side, the curved surface surrounded by the loading and unloading rack frame 42 is set as the C side, and the side guardrail 44 is provided on the A side of the loading and unloading rack 40.

[0033] The loading and unloading rack frame 42 is generally in an upward arc shape, and the loading and unloading rack legs 41 are respectively located at the bottom of the loading and unloading rack frame 42 and fixed to the cabin floor through circular flanges. The loading and unloading rack legs 41 are arranged at different heights in the directions toward the bow and stern of the ship.

[0034] The loading and unloading rack 40 is oriented to one side as a whole, so that when the optical cable is being loaded and unloaded, the optical cable can be prevented from being stuck and damaged, thereby ensuring the smooth operation of the optical cable.

[0035] The C-side transverse rollers 43 are perpendicular to the positions between the loading and unloading frame frames 42 in sequence, the A-side vertical rollers 45 and the B-side vertical rollers 46 are respectively located between the C-side transverse rollers 43, and the A-side vertical rollers 45, the B-side vertical rollers 46 and the C-side transverse rollers 43 include roller bodies.

[0036] The A-side vertical roller 45 and the B-side vertical roller 46 are placed in sequence between the C-side transverse rollers 43, so that when the optical cable is being loaded and unloaded and hits the loading and unloading frame 40, the vertical rollers on both sides can limit it and also guide it. The bottom C-side transverse roller 43 guides the optical cable.

[0037] The roller body includes a roller 51, a roller shaft 53 and a roller base 55. The top of the roller base 55 is provided with an inwardly recessed U-shaped groove 55-1, and the U-shaped groove 55-1 is provided with a roller shaft 53. The roller shaft 53 passes through the roller 51. The roller shaft 53 passes through the roller base 55 through a pin shaft 54 ​​for rotational connection. The gap in the pin shaft 54 ​​passes through a cotter pin 52, and the roller 51 rotates axially around the roller shaft 53.

[0038] The roller shaft 53 is located exactly in the U-shaped groove 55-1, and the U-shaped groove 55-1 limits the roller shaft 53. When the roller shaft 53 is located in the U-shaped groove 55-1 and drives the roller 51 to rotate, the roller 51 always rotates around the center of the roller shaft 53, ensuring the smooth transmission of the optical cable on the roller 51.

[0039] The roller base 55 at the top of the A side vertical roller 45 is connected to the side guardrail 44, the bottom of the A side vertical roller 45 is connected to the loading and unloading frame 42 through the roller base 55, the two ends of the C side transverse roller are connected to the loading and unloading frame 42 through the roller base 55, the bottom of the B side vertical roller 46 is connected to the loading and unloading frame 42 through the roller base 55, and the top is welded together with the slot guide cage 11.

[0040] The side guardrail 44 can play a role of limiting when the optical cable passes through, preventing the optical cable from slipping from the side, and the C-side transverse roller 43 can play a role of guiding the optical cable, preventing the optical cable from being worn.

[0041] A working method of a fixed optical cable loading and unloading rack in a cable cabin for laying optical cables, comprising the following steps: Step 1: Preparation Carry out corresponding preparation work according to working conditions; Step 2: Working Condition Selection For laying of optical cables, execute step 3; for recovery of optical cables, execute step 4; for transmission of optical cables between two optical cable compartments, execute step 5; Step 3: Laying out optical cables like Figure 5 As shown, the linear cable laying machine 21 pulls the optical cable on the right bow side from the lower cable compartment 16 through the loading and unloading rack 40 to the Y-shaped cable guide rail 17 and then into the cable guide rail 18; Step 4: Cable Recycling like Figure 6 As shown, the drum-type cable laying machine 20 pulls the optical cable on the left stern side from the optical cable guide rail 18 through the Y-shaped optical cable guide rail 17 to the loading and unloading rack 40 and then to the lower optical cable cabin 16; Step 5: Optical cable transmission between two cable compartments For the optical cable being transmitted from the optical cable compartment on the left stern side to the optical cable compartment on the right bow side, step S51 is executed; S51: Figure 7 As shown, the wheel-movable cable drawer 22 pulls the optical cable in the left optical cable compartment 16 through the detachable square roller frame 14 installed on the optical cable inlet and outlet compartment guide frame 11 to the optical cable guide rail 18, and then sequentially passes through the Y-shaped optical cable guide rail 17 installed above the right optical cable compartment 19 and the optical cable loading and unloading frame 40 to the lower cable compartment 19; For the optical cable being transmitted from the optical cable compartment on the right bow side to the optical cable compartment on the left stern side, step S52 is executed; S52: Figure 7 As shown, the wheel-movable cable drawer 22 pulls the optical cable in the right optical cable compartment 19 through the optical cable loading and unloading frame 40 to the Y-shaped optical cable guide rail 17, and is then transmitted to the lower cable compartment 16 through the detachable square roller frame 14 installed on the left optical cable in-and-out compartment guide frame 11.

[0042] The top of the loading and unloading rack is connected to the optical cable guide rail 10, and the bottom of the loading and unloading rack extends to the lower optical cable storage cabin. A side guardrail is provided on the side of the loading and unloading rack away from the optical cable in-and-out cabin guide frame 11, and the side close to the optical cable in-and-out cabin guide frame 11 is welded to the optical cable in-and-out cabin guide frame 11 through a straight steel pipe. A cable anti-jump device 13 is provided at the cable hatch. The loading and unloading rack 40 works in coordination with a detachable square roller frame 14 installed on the optical cable in-and-out cabin guide frame 11. The space enclosed by the optical cable anti-jump device 13 and the arc-shaped edge of the optical cable hatch, below which is the lower optical cable cabin 16.

[0043] The linear cable laying machine 21 is used for laying optical cables, the drum cable laying machine 20 is used for recovering optical cables, the wheel-movable cable laying machine 22 moves along the direction of the optical cable guide rail and provides power for the transmission of the optical cable on the optical cable guide rail, and the top of the loading and unloading rack 40 is arc-shaped, and the radius of the arc is the distance between the optical cable guide rail 10 and the floor of the cabin.

[0044] It ensures that the optical cable can slide smoothly during the wiring process, avoiding damage to the optical cable or wiring obstruction caused by excessive friction; this design not only improves the efficiency of optical cable wiring, but also extends the service life of the optical cable and improves the reliability and safety of the optical cable.

[0045] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention, and the purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A fixed optical cable loading and unloading rack for laying optical cables in a cable cabin, the optical cable loading and unloading rack is located on both sides of the hatch in a mirror-symmetrical manner, and is characterized by: The loading and unloading rack comprises loading and unloading rack legs, a loading and unloading rack frame, C-side transverse rollers, A-side vertical rollers, and B-side vertical rollers. The direction of the A-side vertical roller is perpendicular to the arc tangent of the side guardrail, the direction of the B-side vertical roller is perpendicular to the arc tangent of the loading and unloading rack frame, the C-side transverse roller is arranged on the loading and unloading rack frame, the A-side vertical roller, the B-side vertical roller and the C-side transverse roller are all connected to the loading and unloading rack frame through a pin shaft, and the loading and unloading rack frame is arc-shaped and its arc radius is larger than the minimum bending radius of the current common submarine optical cable.

2. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The upper part of the loading and unloading frame is butted against the Y-shaped optical cable guide rail, and the lower part of the loading and unloading frame is butted against the loading and unloading port of the cable cabin.

3. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The side of the loading and unloading rack away from the guide cage is set as side A, the side close to the guide cage is set as side B, the curved surface surrounded by the loading and unloading rack frame is set as side C, and the side A of the loading and unloading rack is provided with a side guardrail.

4. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The loading and unloading rack frame is generally in an upward arc shape, and the loading and unloading rack legs are respectively located at the bottom of the loading and unloading rack frame and fixed to the cabin floor through circular flanges. The loading and unloading rack legs are arranged at different heights in the direction toward the bow and stern.

5. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The C-side transverse rollers are perpendicular to the positions between the loading and unloading frame frames in sequence, the A-side vertical rollers and the B-side vertical rollers are respectively located between the C-side transverse rollers, and the A-side vertical rollers, the B-side vertical rollers and the C-side transverse rollers include roller bodies.

6. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The roller body includes a roller, a roller shaft and a roller base. The top of the roller base is provided with an inwardly recessed U-shaped groove, and the roller shaft is provided in the U-shaped groove. The roller shaft passes through the roller, and the roller shaft passes through the roller base through a pin shaft for rotational connection. A cotter pin passes through a gap provided in the pin shaft, and the roller rotates axially around the roller shaft.

7. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim 1, characterized in that: The roller base at the top of the A-side vertical roller is connected to a side guardrail, the bottom of the A-side vertical roller is connected to the loading and unloading frame through the roller base, the two ends of the C-side transverse roller are connected to the loading and unloading frame through the roller base, the bottom of the B-side vertical roller is connected to the loading and unloading frame through the roller base, and the top is welded to the guide cage through a notch.

8. A working method of a fixed optical cable loading and unloading rack in a cable cabin for laying optical cables, characterized in that: The following steps are involved: Step 1: Preparation Carry out corresponding preparation work according to working conditions; Step 2: Working Condition Selection For laying of optical cables, execute step 3; for recovery of optical cables, execute step 4; for transmission of optical cables between two optical cable compartments, execute step 5; Step 3: Laying out optical cables As shown in the figure, the linear cable laying machine pulls the optical cable on the right bow side from the lower cable compartment through the loading and unloading rack to the Y-shaped cable guide and into the cable guide; Step 4: Cable Recycling As shown in the figure, the drum-type cable laying machine pulls the optical cable on the left stern side from the optical cable guide rail through the Y-shaped optical cable guide rail to the loading and unloading rack and then to the lower optical cable cabin; Step 5: Optical cable transmission between two cable compartments For the optical cable being transmitted from the optical cable compartment on the left stern side to the optical cable compartment on the right bow side, step S51 is executed; S51: The wheel-movable cable drawer pulls the optical cable in the left optical cable compartment through the detachable square roller frame installed on the optical cable inlet and outlet compartment guide frame to the optical cable guide rail, and then sequentially transmits the optical cable to the lower cable compartment through the Y-shaped optical cable guide rail and the optical cable loading and unloading frame installed above the right optical cable compartment; For the optical cable being transmitted from the optical cable compartment on the right bow side to the optical cable compartment on the left stern side, step S52 is executed; S52: As shown in the figure, the wheel-movable cable drawer pulls the optical cable in the right optical cable compartment through the optical cable loading and unloading rack to the Y-shaped optical cable guide rail, and then transmits it to the lower cable compartment through the detachable square roller frame installed on the left optical cable inlet and outlet guide frame.

9. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim, characterized in that: The top of the loading and unloading rack is connected to the optical cable guide rail, and the bottom of the loading and unloading rack extends to the lower optical cable storage cabin. A side guardrail is provided on the side of the loading and unloading rack away from the optical cable in-and-out cabin guide frame, and the side close to the optical cable in-and-out cabin guide frame is welded to the optical cable in-and-out cabin guide frame through a straight steel pipe. An optical cable anti-jump device is provided at the cable hatch. The loading and unloading rack works in coordination with a detachable square roller frame installed on the optical cable in-and-out cabin guide frame. The space enclosed by the optical cable anti-jump device and the arc-shaped edge of the optical cable hatch, below which is the lower optical cable cabin.

10. The fixed optical cable loading and unloading rack for optical cable laying ship cable cabin according to claim, characterized in that: The linear cable laying machine is used for laying optical cables, the drum cable laying machine is used for recovering optical cables, the wheel-movable cable laying machine moves along the direction of the optical cable guide rail and provides power for the transmission of the optical cable on the optical cable guide rail, and the top of the loading and unloading rack is arc-shaped, and the arc radius is the distance between the optical cable guide rail and the floor of the cabin.

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