Mitigating the damage to the traction structure during submarine cable laying

Abstract

The present invention discloses a traction structure for reducing the damage of submarine cable laying, comprising a base plate, a submarine cable retracting device is arranged on the base plate, a submarine cable water entry device is arranged at one end of the base plate, the submarine cable retracting device comprises a submarine cable pull-back component, a submarine cable lifting component and a submarine cable lowering component arranged in sequence on the upper surface of the base plate; the submarine cable water entry device comprises a square slide rail rod fixed to the upper surface of the base plate through vertical plates at both ends, a horizontal displacement buffer component sleeved on the outside of the square slide rail rod, a cable release tube arranged on the side of the horizontal displacement buffer component away from the submarine cable retracting device, a plurality of air flotation components symmetrically arranged on the outer wall of the cable release tube, and an air source component arranged on the upper surface of the base plate; the submarine cable on the cable ship passes through the submarine cable lowering component, the submarine cable lifting component, the submarine cable pull-back component and the cable release tube in sequence and then enters the seawater. The present invention is a traction mechanism that can avoid damage caused by too small bending radius when laying submarine cables.

Description

Technical Field

[0001] The invention mainly relates to the technical field of submarine cable laying, and in particular to a traction structure for alleviating damage to submarine cable laying. Background Art

[0002] Cable laying refers to the process of laying and installing cables along a surveyed route to form a cable line. When laying submarine cables, the cables will enter the seawater, sink and sink to the bottom. During the above process, it is necessary to avoid damaging the cable due to the small bending radius of the cable.

[0003] According to the patent document with application number CN201710513907.1, a submarine cable intelligent retractable and retractable rack is provided. The product includes a device body, in which a load-bearing platform, a guide rail and a submarine cable storage pool are arranged; the load-bearing platform is provided with a cable hole, a traction platform and a traction track, the traction platform is provided with a traction wheel, the traction wheel is connected to the traction motor, the traction motor is electrically connected to the main controller, and a guide wheel group is provided on the traction track; a wire arrangement motor group is provided on the guide rail, the wire arrangement motor group is connected to the tail of the threaded rod, and the front end of the threaded rod is fixedly connected to the fixed pulley; a minimum bending frame is provided in the center of the submarine cable storage pool. This product can realize the intelligent and automated arrangement of submarine cables, and prevent the arrangement of cables from slipping.

[0004] The product in the above patent can realize intelligent and automated cable arrangement and prevent cable slippage, but it cannot prevent damage to the submarine cable due to a small bending radius. Summary of the invention

[0005] The present invention mainly provides a traction structure for alleviating damage to submarine cable laying, so as to solve the technical problems raised in the above-mentioned background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A traction structure for alleviating damage to submarine cable laying, comprising a base plate arranged on a cable ship, a submarine cable retracting and releasing device being arranged on the base plate, a submarine cable entering water device being arranged at one end of the base plate, and the submarine cable retracting and releasing device comprising a submarine cable pulling back component, a submarine cable lifting component and a submarine cable lowering component being arranged on the upper surface of the base plate in a direction extending away from the submarine cable entering water device;

[0008] The submarine cable entry device comprises a square slide rail rod with both ends fixed to the upper surface of the base plate through vertical plates, a horizontal displacement buffer component sleeved on the outside of the square slide rail rod, a cable release tube arranged on the side of the horizontal displacement buffer component away from the submarine cable retracting and releasing device, a plurality of air floating components symmetrically arranged on the outer wall of the cable release tube, and an air source component arranged on the upper surface of the base plate and used to supply air to the air floating component;

[0009] The submarine cable on the cable ship passes through the submarine cable lowering component, the submarine cable lifting component, the submarine cable pulling back component and the cable laying pipe in sequence before entering the sea water.

[0010] Preferably, the submarine cable pull-back component includes a first driving motor disposed on the upper surface of the base plate, a first reducer disposed at the execution end of the first driving motor and fixed on the base plate, a shaft tube disposed at the execution end of the first reducer, and a pull-back cable roller having one end rotatably connected to the inner wall of the shaft tube and the other end connected to the upper surface of the base plate through a bearing seat, the pull-back cable roller is provided with a ratchet at one end close to the shaft tube, the inner wall of the shaft tube is rotatably connected to a plurality of stop claws, the inner wall of the shaft tube is provided with an elastic sheet for forcing the stop claws to contact the ratchet, the outer wall of the shaft tube is provided with a micro-drive cylinder, the execution end of the micro-drive cylinder is connected to one end of a rope, and the other end of the rope passes through the shaft tube and is connected to the stop claw. In this preferred embodiment, the submarine cable pull-back component is used to facilitate the control of the sinking of the submarine cable, so as to avoid the submarine cable sinking too fast and causing the bending radius between the submarine cable buried end and the sea surface water end to be too small, and the ratchet mechanism is used to facilitate the free movement of the submarine cable when entering the water, and the motor is only required to work during the pull-back.

[0011] Preferably, the submarine cable lifting component includes a plurality of driving cylinders arranged in a linear array on the upper surface of the base plate, a square support frame arranged at the actuating end of the driving cylinder, an arc-shaped plate arranged at the top and bottom of the inner wall of the square support frame, and pulleys at both ends respectively rotatably connected to the two sides of the inner wall of the square support frame and with the side wall passing through the arc-shaped plate, and the pulley is located between the arc-shaped plate and the inner wall of the square support frame. In this preferred embodiment, the submarine cable lifting component facilitates the lifting of the submarine cable when the submarine cable is pulled back, so as to prevent the submarine cable from being tangled and damaged.

[0012] Preferably, the submarine cable lowering component includes a second driving motor disposed on the upper surface of the base plate, a second reducer disposed at the execution end of the second driving motor and fixed on the base plate, and a cable-releasing roller having one end connected to the execution end of the second reducer and the other end connected to the upper surface of the base plate through a bearing seat. In this preferred embodiment, the submarine cable lowering component is used to facilitate the traction of the submarine cable in the ship's hold so as to facilitate the submarine cable to enter the water.

[0013] Preferably, the horizontal displacement buffer component includes a sliding tube sleeved on the outer wall of the square slide rail rod, and springs sleeved on the outer wall of the square slide rail rod and located on both sides of the sliding tube. In this preferred embodiment, the horizontal displacement buffer component is used to buffer the horizontal displacement force generated when the cable laying vessel turns, so as to protect the submarine cable.

[0014] Preferably, the inner wall of the cable-releasing tube is provided with a return cable water scraper ring and a return cable dirt filter ring in sequence in a direction extending away from the submarine cable retracting device, and the cable-releasing tube includes a hard tube and a soft tube in sequence in a direction extending away from the submarine cable retracting device, and the side wall of the sliding tube is connected to the outer wall of one end of the hard tube through a spherical auxiliary structure. In this preferred embodiment, the cable-releasing tube facilitates the submarine cable to enter the seawater smoothly, the hard tube can prevent the water ripples generated by the movement of the hull from affecting the entry of the submarine cable into the water, and the return cable water scraper ring and the return cable dirt filter ring prevent impurities or seawater from being brought back to the device body when the submarine cable is pulled back, so as to protect the device as a whole.

[0015] Preferably, the air source component includes an air storage tank disposed on the upper surface of the base plate, an air supply pump disposed on the top of the air storage tank, a first air delivery pipe symmetrically disposed on the outer wall of the cable release pipe, and a second air delivery pipe connected to the air storage tank at one end and connected to the first air delivery pipe at the other end. In this preferred embodiment, air is supplied to the air flotation component through the air source component.

[0016] Preferably, the air flotation component comprises a U-shaped air bag disposed on the side wall of the cable-releasing tube, and an air pressure sensor disposed in the U-shaped air bag, and the outer wall of the U-shaped air bag is connected to the first air supply pipe through an electric control valve. In this preferred embodiment, the air flotation component is used to facilitate adjustment of the angle of the cable-releasing tube so that the submarine cable enters the seawater at a suitable water entry angle.

[0017] Preferably, a flow detection component is provided on the side wall of the second gas delivery pipe, and the flow detection component includes a flow sensor provided on the outer wall of the second gas delivery pipe. In this preferred embodiment, the flow sensor is used to obtain air flow information, so as to calculate the gas volume through time and air flow information, so as to estimate the buoyancy.

[0018] Preferably, the side wall of the second gas pipe is sleeved with a temperature regulating component, and the temperature regulating component includes a heat-insulating outer cover tube sleeved on the outer wall of the second gas pipe, a spiral heating tube arranged inside the heat-insulating outer cover tube and sleeved on the outside of the second gas pipe, and a temperature sensor arranged on the inner wall of the second gas pipe and located inside the heat-insulating outer cover tube. In this preferred embodiment, the temperature regulating component is used to adjust the air supply temperature of the gas source component so as to facilitate the rapid expansion of the air flotation component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The traction mechanism of the present invention can avoid damage to the submarine cable due to too small bending radius during laying;

[0021] The submarine cable lowering component is used to give traction to the submarine cable in the ship's hold so that the submarine cable can enter the water. The submarine cable pulling back component is used to control the sinking of the submarine cable to prevent the submarine cable from sinking too quickly and causing the bending radius between the submarine cable's seabed buried end and the sea surface entering water end to be too small. The ratchet mechanism is used to facilitate the free movement of the submarine cable when entering the water, and the motor is required to work only when pulling back. The submarine cable lifting component is used to lift the retracted submarine cable when pulling back the submarine cable to prevent the submarine cable from being damaged by knotting. The horizontal displacement buffer component is used to buffer the horizontal displacement force generated when the cable-laying ship turns to protect the submarine cable. The hard pipe can prevent the hull from The water surface ripples generated by the movement affect the entry of the submarine cable into the water. The cable return scraper ring and the cable return filter ring are used to prevent impurities or seawater from being brought back to the device body when the submarine cable is pulled back, so as to protect the device as a whole. The air source component is used to supply air to the air flotation component, and the air flotation component is used to adjust the angle of the cable release pipe so that the submarine cable enters the seawater at a suitable water entry angle. The flow sensor is used to obtain air flow information so that the gas volume can be calculated through time and air flow information to estimate the buoyancy. The temperature control component is used to adjust the air supply temperature of the air source component so that the air flotation component can expand rapidly.

[0022] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric diagram of the overall structure of the present invention;

[0024] Figure 2 This is an axonometric diagram of the structure of the submarine cable upper cantilever component of the present invention;

[0025] Figure 3 This is an axonometric diagram of the structure of the submarine cable pull-back component of the present invention;

[0026] Figure 4 This is an axonometric diagram of the structure of the submarine cable entry device of the present invention;

[0027] Figure 5 It is a top view of the overall structure of the present invention;

[0028] Figure 6 It is a side view of the overall structure of the present invention;

[0029] Figure 7 It is a cross-sectional view of the overall structure of the present invention;

[0030] Figure 8 It is an enlarged view of the structure at location A of the present invention.

[0031] Description of the drawings: 10, base plate; 20, submarine cable retracting device; 21, submarine cable pulling back component; 211, first drive motor; 212, first reducer; 213, shaft tube; 214, pulling back cable roller; 215, ratchet; 216, stop claw; 217, elastic sheet; 218, micro drive cylinder; 219, rope; 22, submarine cable lifting component; 221, drive cylinder; 222, square support frame; 223, arc plate; 224, pulley; 23, submarine cable lowering component; 231, second drive motor; 232, second reducer; 233, cable releasing roller; 30, submarine cable entering water device; 31, square slide rail Rod; 32, horizontal displacement buffer component; 321, sliding tube; 322, spring; 33, cable release tube; 331, return cable wiper ring; 332, return cable filter ring; 333, hard tube; 334, hose; 34, air flotation component; 341, U-shaped air bag; 342, air pressure sensor; 343, electric control valve; 35, air source component; 351, air storage tank; 352, air supply pump; 353, first air pipeline; 354, second air pipeline; 36, flow detection component; 361, flow sensor; 37, temperature control component; 371, thermal insulation outer cover tube; 372, spiral heating tube; 373, temperature sensor. DETAILED DESCRIPTION

[0032] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Please refer to the attached Figure 1 , 2, 3, 5, and 8, in a preferred embodiment of the present invention, a traction structure for alleviating damage to submarine cable laying comprises a base plate 10 disposed on a cable ship, a submarine cable retracting and releasing device 20 is disposed on the base plate 10, a submarine cable entering water device 30 is disposed at one end of the base plate 10, and the submarine cable retracting and releasing device 20 comprises a submarine cable pulling back component 21, a submarine cable lifting component 22, and a submarine cable lowering component 23 which are sequentially disposed on the upper surface of the base plate 10 in a direction extending away from the submarine cable entering water device 30; the submarine cable pulling back component 21 comprises a The first driving motor 211 on the surface, the first reducer 212 arranged at the execution end of the first driving motor 211 and fixed on the base plate 10, the shaft tube 213 arranged at the execution end of the first reducer 212, and the pull-back cable roller 214 with one end rotatably connected to the inner wall of the shaft tube 213 and the other end connected to the upper surface of the base plate 10 through the bearing seat, the pull-back cable roller 214 is provided with a ratchet 215 at one end close to the shaft tube 213, the inner wall of the shaft tube 213 is rotatably connected to a plurality of stop claws 216, and the inner wall of the shaft tube 213 is provided with a plurality of stop claws 216 for forcing the stop claws 216 to rotate. The claw 216 contacts the elastic sheet 217 of the ratchet 215, the outer wall of the shaft tube 213 is provided with a micro-driving cylinder 218, the execution end of the micro-driving cylinder 218 is connected to one end of a rope 219, and the other end of the rope 219 passes through the shaft tube 213 and is connected to the stop claw 216. The submarine cable lifting component 22 includes a plurality of driving cylinders 221 arranged in a linear array on the upper surface of the base plate 10, a square support frame 222 arranged at the execution end of the driving cylinder 221, an arc plate 223 arranged at the top and bottom of the inner wall of the square support frame 222, and two ends of the arc plate 223. The pulley 224 is rotatably connected to both sides of the inner wall of the square support frame 222 and the side wall passes through the arc plate 223, the pulley 224 is located between the arc plate 223 and the inner wall of the square support frame 222, the submarine cable lowering component 23 includes a second driving motor 231 arranged on the upper surface of the base plate 10, a second reducer 232 arranged at the execution end of the second driving motor 231 and fixed on the base plate 10, and a cable release roller 233 with one end connected to the execution end of the second reducer 232 and the other end connected to the upper surface of the base plate 10 through a bearing seat.

[0036] It should be noted that, in this embodiment, the submarine cable passes through the cable-releasing roller 233, a plurality of square support frames 222, the cable-pulling roller 214 and the cable-releasing tube 33 in sequence and then enters the seawater;

[0037] The submarine cable is wound around the cable-releasing roller 233 and the cable-pulling roller 214. When the cable is released, the cable-releasing roller 233 rotates counterclockwise under the action of the second driving motor 231 and the second reducer 232. The cable-releasing roller 233 pulls the submarine cable out of the cabin from the cable-releasing end. At this time, the cable-pulling roller 214 rotates counterclockwise under the drive of the submarine cable entering the water by its own weight to release the cable.

[0038] When the cable is returned, the braking end of the micro-drive cylinder 218 descends, and the rope 219 is relaxed. At this time, the stop claw 216 is driven by the elastic sheet 217 to fit the outer wall of the ratchet 215, and the first drive motor 211 and the first reducer 212 cooperate to drive the shaft tube 213 to rotate clockwise to return the cable. When the cable is returned, the extra submarine cable is located between the submarine cable pulling back component 21 and the submarine cable lowering component 23. By pulling back the submarine cable, it is convenient to control the settlement of the submarine cable, so as to avoid the submarine cable sinking too fast, which may cause the bending radius of the submarine cable buried end and the sea surface water end to be too small;

[0039] Furthermore, the submarine cable lifting component 22 can lift the submarine cable being played back when the submarine cable is pulled back to prevent the submarine cable from being tangled and damaged. When the submarine cable lifting component 22 is working, the actuator end of the driving cylinder 221 drives the square support frame 222 to rise and fall, and the square support frame 222 drives the submarine cable to rise and fall. The arc plate 223 facilitates the arc bending of the submarine cable, and the pulley 224 facilitates the sliding of the submarine cable in the square support frame 222.

[0040] Please refer to the attached Figure 1 , 4 , 5, 6, and 7, in another preferred embodiment of the present invention, the submarine cable entering water device 30 includes a square slide rail rod 31 whose two ends are fixed to the upper surface of the base plate 10 by vertical plates, a horizontal displacement buffer component 32 sleeved on the outside of the square slide rail rod 31, a cable release tube 33 arranged on the side of the horizontal displacement buffer component 32 away from the submarine cable retracting device 20, and a plurality of air floating components 34 symmetrically arranged on the outer wall of the cable release tube 33. The submarine cable on the cable ship passes through the submarine cable lowering component 23, the submarine cable lifting component 22, the submarine cable pulling back component 21 and the cable release tube 33 in sequence and then enters the seawater; the horizontal displacement buffer component 32 includes a sliding tube 321 sleeved on the outer wall of the square slide rail rod 31, and a sliding tube 321 sleeved on the outer wall of the The outer wall of the square slide rail rod 31 is provided with a spring 322 on both sides of the sliding tube 321, and the inner wall of the cable-releasing tube 33 is provided with a cable return wiper ring 331 and a cable return filter ring 332 in sequence in a direction extending away from the submarine cable retracting device 20. The cable-releasing tube 33 includes a hard tube 333 and a soft tube 334 which are arranged in sequence in a direction extending away from the submarine cable retracting device 20. The side wall of the sliding tube 321 is connected to the outer wall of one end of the hard tube 333 through a spherical secondary structure. The air flotation component 34 includes a U-shaped air bag 341 provided on the side wall of the cable-releasing tube 33, and an air pressure sensor 342 provided in the U-shaped air bag 341. The outer wall of the U-shaped air bag 341 is connected to the first air supply pipe 353 through an electric control valve 343.

[0041] It should be noted that, in this embodiment, the horizontal displacement buffer component 32 is convenient for buffering the horizontal displacement force generated when the cable laying vessel turns. During buffering, the spring 322 provides buffering force to the sliding tube 321. The hard tube 333 can prevent the water surface ripples generated by the movement of the hull from affecting the entry of the submarine cable into the water. The return cable scraper ring 331 and the return cable filter ring 332 can prevent impurities or seawater from being brought back to the device body when the submarine cable is pulled back, so as to protect the device as a whole.

[0042] The air flotation component 34 facilitates the adjustment of the angle of the cable release tube 33 so that the submarine cable can enter the seawater at a suitable water entry angle. When the air flotation component 34 is working, the corresponding electric control valve 343 is opened, and the U-shaped air bag 341 is inflated to provide buoyancy. The PLC controller receives the pressure data of the air pressure sensor 342 and closes the electric control valve 343 when the pressure data is greater than or equal to the set value to protect the U-shaped air bag 341.

[0043] Please refer to the attached Figure 1 , 4 As shown in Figures 5 and 6, in another preferred embodiment of the present invention, there is an air source component 35 disposed on the upper surface of the base plate 10 and used to supply air to the air floating component 34, the air source component 35 includes an air storage tank 351 disposed on the upper surface of the base plate 10, an air supply air pump 352 disposed on the top of the air storage tank 351, a first air delivery pipe 353 symmetrically disposed on the outer wall of the cable release pipe 33, and a second air delivery pipe 354 connected to the air storage tank 351 at one end and connected to the first air delivery pipe 353 at the other end, and a side wall of the second air delivery pipe 354 A flow detection component 36 is provided, and the flow detection component 36 includes a flow sensor 361 arranged on the outer wall of the second gas pipe 354. The side wall of the second gas pipe 354 is sleeved with a temperature control component 37, and the temperature control component 37 includes an insulating outer cover tube 371 sleeved on the outer wall of the second gas pipe 354, a spiral heating tube 372 arranged in the insulating outer cover tube 371 and sleeved on the outside of the second gas pipe 354, and a temperature sensor 373 arranged on the inner wall of the second gas pipe 354 and located in the insulating outer cover tube 371.

[0044] It should be noted that, in this embodiment, when supplying gas, the gas supply pump 352 inputs gas into the gas storage tank 351, and the gas in the gas storage tank 351 can enter the air flotation component 34 through the second gas delivery pipe 354 and the first gas delivery pipe 353. The PLC controller receives the flow information of the flow sensor 361, and closes the valve of the gas storage tank 351 when the product of the flow information and the time reaches the set value, so as to complete the input of the set amount of gas;

[0045] Furthermore, when adjusting the temperature, the PLC controller receives the temperature information from the temperature sensor 373 and triggers the spiral heating tube 372 until the temperature information reaches the set value.

[0046] The specific process of the present invention is as follows:

[0047] The PLC controller model is "6ES7216-2AD23-0XB8", the air pressure sensor 342 model is "MAT316", the flow sensor 361 model is "LWGY-FMT", and the temperature sensor 373 model is "DS18B20".

[0048] The submarine cable passes through the cable-releasing roller 233, a plurality of square support frames 222, the cable-pulling roller 214 and the cable-releasing tube 33 in sequence and then enters the seawater;

[0049] The submarine cable is wound around the cable-releasing roller 233 and the cable-pulling roller 214. When the cable is released, the cable-releasing roller 233 rotates counterclockwise under the action of the second driving motor 231 and the second reducer 232. The cable-releasing roller 233 pulls the submarine cable out of the cabin from the cable-releasing end. At this time, the cable-pulling roller 214 rotates counterclockwise under the drive of the submarine cable entering the water by its own weight to release the cable.

[0050] When the cable is returned, the braking end of the micro-drive cylinder 218 descends, and the rope 219 is relaxed. At this time, the stop claw 216 is driven by the elastic sheet 217 to fit the outer wall of the ratchet 215, and the first drive motor 211 and the first reducer 212 cooperate to drive the shaft tube 213 to rotate clockwise to return the cable. When the cable is returned, the extra submarine cable is located between the submarine cable pulling back component 21 and the submarine cable lowering component 23. By pulling back the submarine cable, it is convenient to control the settlement of the submarine cable, so as to avoid the submarine cable sinking too fast, which may cause the bending radius of the submarine cable buried end and the sea surface water end to be too small;

[0051] The submarine cable lifting component 22 can lift the submarine cable when the submarine cable is pulled back to prevent the cable from being damaged by knots. When the submarine cable lifting component 22 is working, the actuator end of the driving cylinder 221 drives the square support frame 222 to rise and fall, and the square support frame 222 drives the submarine cable to rise and fall. The arc plate 223 facilitates the arc bending of the submarine cable, and the pulley 224 facilitates the sliding of the submarine cable in the square support frame 222.

[0052] The horizontal displacement buffer component 32 is convenient for buffering the horizontal displacement force generated when the cable laying vessel turns. During buffering, the spring 322 provides buffering force to the sliding tube 321. The hard tube 333 can prevent the water surface ripples generated by the movement of the hull from affecting the entry of the submarine cable into the water. The return cable scraper ring 331 and the return cable filter ring 332 can prevent impurities or seawater from being brought back to the device body when the submarine cable is pulled back, so as to protect the device as a whole.

[0053] The air flotation component 34 is convenient for adjusting the angle of the cable release tube 33 so that the submarine cable can enter the seawater at a suitable angle. When the air flotation component 34 is working, the corresponding electric control valve 343 is opened, and the U-shaped air bag 341 is inflated to provide buoyancy. The PLC controller receives the pressure data of the air pressure sensor 342 and closes the electric control valve 343 when the pressure data is greater than or equal to the set value to protect the U-shaped air bag 341.

[0054] When supplying gas, the gas supply pump 352 inputs gas into the gas storage tank 351, and the gas in the gas storage tank 351 can enter the air flotation component 34 through the second gas delivery pipe 354 and the first gas delivery pipe 353. The PLC controller receives the flow information of the flow sensor 361, and closes the valve of the gas storage tank 351 when the product of the flow information and time reaches the set value, so as to complete the input of the set amount of gas;

[0055] When adjusting the temperature, the PLC controller receives the temperature information from the temperature sensor 373 and triggers the spiral heating tube 372 until the temperature information reaches the set value.

[0056] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A traction structure for alleviating damage to submarine cable laying, comprising a base plate (10) arranged on a cable ship, characterized in that The base plate (10) is provided with a submarine cable retracting and releasing device (20), one end of the base plate (10) is provided with a submarine cable entering water device (30), the submarine cable retracting and releasing device (20) comprises a submarine cable pulling back component (21), a submarine cable lifting component (22) and a submarine cable lowering component (23) which are sequentially arranged on the upper surface of the base plate (10) in a direction extending away from the submarine cable entering water device (30); The submarine cable entry device (30) comprises a square slide rail (31) whose two ends are fixed to the upper surface of the base plate (10) through vertical plates, a horizontal displacement buffer component (32) sleeved on the outside of the square slide rail (31), a cable release tube (33) arranged on the side of the horizontal displacement buffer component (32) away from the submarine cable retracting and releasing device (20), a plurality of air flotation components (34) symmetrically arranged on the outer wall of the cable release tube (33), and an air source component (35) arranged on the upper surface of the base plate (10) and used for supplying air to the air flotation component (34); The submarine cable on the cable ship passes through a submarine cable lowering component (23), a submarine cable lifting component (22), a submarine cable pulling back component (21) and a cable releasing tube (33) in sequence before entering the seawater. The submarine cable pulling back component (21) comprises a first driving motor (211) arranged on the upper surface of the base plate (10), a first reducer (212) arranged at the execution end of the first driving motor (211) and fixed on the base plate (10), a shaft tube (213) arranged at the execution end of the first reducer (212), and a shaft tube (213) having one end rotatably connected to the inner wall of the shaft tube (213) and the other end connected to the upper surface of the base plate (10) through a bearing seat. A pull-back cable roller (214) is provided on the surface, a ratchet (215) is provided at one end of the pull-back cable roller (214) close to the shaft tube (213), the inner wall of the shaft tube (213) is rotatably connected to a plurality of stop claws (216), the inner wall of the shaft tube (213) is provided with an elastic sheet (217) for forcing the stop claws (216) to contact the ratchet (215), the outer wall of the shaft tube (213) is provided with a micro-drive cylinder (218), the execution end of the micro-drive cylinder (218) is connected to one end of a rope (219), the other end of the rope (219) passes through the shaft tube (213) and is connected to the stop claws (216), The submarine cable lifting component (22) comprises a plurality of driving cylinders (221) arranged in a linear array on the upper surface of the base plate (10), a square support frame (222) arranged at the execution end of the driving cylinder (221), an arc-shaped plate (223) arranged at the top and bottom of the inner wall of the square support frame (222), and a pulley (224) at both ends of which is rotatably connected to the two sides of the inner wall of the square support frame (222) and the side wall of which passes through the arc-shaped plate (223), the pulley (224) being located between the arc-shaped plate (223) and the inner wall of the square support frame (222), and the horizontal displacement buffer component (32) comprising a sleeve A sliding tube (321) is arranged on the outer wall of the square slide rail rod (31), and a spring (322) is sleeved on the outer wall of the square slide rail rod (31) and located on both sides of the sliding tube (321); a return cable scraper ring (331) and a return cable filter ring (332) are arranged in sequence on the inner wall of the cable release tube (33) and in a direction extending away from the submarine cable retracting and releasing device (20); the cable release tube (33) comprises a hard tube (333) and a soft tube (334) which are arranged in sequence in a direction extending away from the submarine cable retracting and releasing device (20); and a side wall of the sliding tube (321) is connected to the outer wall of one end of the hard tube (333) via a spherical auxiliary structure.

2. The traction structure for alleviating damage to submarine cable laying according to claim 1, characterized in that: The submarine cable lowering component (23) comprises a second driving motor (231) arranged on the upper surface of the base plate (10), a second reducer (232) arranged at the execution end of the second driving motor (231) and fixed on the base plate (10), and a cable-releasing roller (233) having one end connected to the execution end of the second reducer (232) and the other end connected to the upper surface of the base plate (10) via a bearing seat.

3. The traction structure for alleviating damage to submarine cable laying according to claim 1, characterized in that: The air source component (35) comprises an air storage tank (351) disposed on the upper surface of the base plate (10), an air supply pump (352) disposed on the top of the air storage tank (351), a first air delivery pipe (353) symmetrically disposed on the outer wall of the cable release pipe (33), and a second air delivery pipe (354) connected to the air storage tank (351) at one end and connected to the first air delivery pipe (353) at the other end.

4. The traction structure for alleviating damage to submarine cable laying according to claim 3 is characterized in that: The air flotation component (34) comprises a U-shaped air bag (341) arranged on the side wall of the cable-releasing tube (33), and an air pressure sensor (342) arranged in the U-shaped air bag (341); the outer wall of the U-shaped air bag (341) is connected to the first air supply pipe (353) via an electric control valve (343).

5. The traction structure for alleviating damage to submarine cable laying according to claim 3, characterized in that: A flow detection component (36) is provided on the side wall of the second gas delivery pipe (354), and the flow detection component (36) comprises a flow sensor (361) provided on the outer wall of the second gas delivery pipe (354).

6. The traction structure for alleviating damage to submarine cable laying according to claim 3, characterized in that: A temperature control component (37) is sleeved on the side wall of the second gas supply pipe (354), and the temperature control component (37) comprises a heat-insulating outer cover pipe (371) sleeved on the outer wall of the second gas supply pipe (354), a spiral heating pipe (372) arranged inside the heat-insulating outer cover pipe (371) and sleeved on the outside of the second gas supply pipe (354), and a temperature sensor (373) arranged on the inner wall of the second gas supply pipe (354) and located inside the heat-insulating outer cover pipe (371).

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