A traction conveying device and a traction conveying method for laying and installing a submarine cable

Abstract

The present invention relates to the technical field of submarine cable laying, and in particular to a traction and conveying device and a traction and conveying method for submarine cable laying and installation, comprising a base plate, a traction and conveying mechanism and an opening and closing control mechanism; the traction and conveying mechanism has three traction and conveying mechanisms, one of which is arranged along the central axis of the base plate, and the other two traction and conveying mechanisms are symmetrically arranged on both sides of the central axis of the base plate, and the traction and conveying mechanism comprises a U-shaped cover and a conveying module; the opening and closing control mechanism comprises two connecting frames, the connecting frames comprise a first connecting rod and two second connecting rods, the middle part of the first connecting rod and the middle part of the two second connecting rods are respectively connected to the ends of the U-shaped covers in the three traction and conveying mechanisms, and the lengths of the first connecting rod and the two second connecting rods are the same; the present invention arranges three traction and conveying mechanisms and an opening and closing control mechanism, thereby effectively avoiding deformation of the submarine cable that may be caused by uneven force, and protecting the integrity and performance of the submarine cable.

Description

Technical Field

[0001] The present invention relates to the technical field of submarine cable laying, in particular to a traction and conveying device, and in particular to a traction and conveying method for submarine cable laying and installation. Background Art

[0002] Submarine cable laying, which is a construction method of placing submarine cables on the seabed or seabed, is an important part of submarine cable engineering. In the process of laying submarine cables, it is necessary to rely on the friction between the traction and conveying device and the submarine cable to pull the submarine cable to move. The submarine cable has a large mass and requires a large friction force to pull the submarine cable to move. Therefore, the traction and conveying device needs to exert a large pressure on the submarine cable.

[0003] Chinese patent CN219906466U discloses a cable laying traction device, including two friction traction belts, the channel between the two friction traction belts is the moving channel of the cable, the two friction traction belts clamp the cable under the action of a bidirectional screw, the closer the distance between the two friction traction belts, the greater the friction traction force on the cable, and when the two friction traction belts rotate in opposite directions, the cable is driven to move.

[0004] Although the cable in the above patent document can be laid to the seabed by two friction traction belts, the cable has a large mass and will bend downward due to gravity. In order to keep the cable in complete contact with the friction traction belts, the two friction traction belts will apply a large force to the cable from both sides of the cable. The interior of the cable is divided into two parts along the middle surface, and the two parts are respectively subjected to pressure from the two friction traction belts. The two pressures are in contact at the middle surface inside the cable. The cable has a certain deformation capacity. When the pressure is too large, the cable will deform in a direction perpendicular to the pressure, causing the shape of the cross-section of the cable along the diameter direction to change, resulting in changes in the performance of the cable. Summary of the invention

[0005] In view of the above problems, a traction and conveying device is provided. The present invention is provided with three traction and conveying mechanisms and an opening and closing control mechanism, thereby effectively avoiding deformation of the submarine cable that may be caused by uneven force, and protecting the integrity and performance of the submarine cable.

[0006] In order to solve the problems of the prior art, the present invention provides a traction and conveying device, including a bottom plate, which is fixed on a hull, and also includes a traction and conveying mechanism and an opening and closing control mechanism; there are three traction and conveying mechanisms, one of which is arranged along the central axis of the bottom plate, and the other two traction and conveying mechanisms are symmetrically arranged on both sides of the central axis of the bottom plate, and the two traction and conveying mechanisms are located at the upper end of the first traction and conveying mechanism, so that the three traction and conveying mechanisms are arranged in an inverted T shape at the upper end of the bottom plate, the traction and conveying mechanism includes a U-shaped cover and a conveying module, and the conveying module is arranged inside the U-shaped cover; the opening and closing control mechanism includes two connecting frames, the two connecting frames are respectively arranged at both ends of the U-shaped cover, the connecting frames include a first connecting rod and two second connecting rods, the middle part of the first connecting rod and the middle part of the two second connecting rods are respectively connected to the ends of the U-shaped covers in the three traction and conveying mechanisms, and the first connecting rod and the two second connecting rods have the same length, and the two ends of the first connecting rod are respectively axially connected to the two second connecting rods.

[0007] Preferably, the opening and closing control mechanism also includes two driving mechanisms, which are respectively arranged at the lower ends of two symmetrically arranged traction and conveying mechanisms, and the driving mechanism includes a support box, a limit plate, a lifting column, a sliding connection structure and a linear drive; the two ends of the support box are respectively connected to the two connecting frames; the limit plate is arranged in parallel inside the support box; the lifting column passes through the middle of the limit plate, and the lifting column is slidably connected to the limit plate, and one end of the lifting column extends upward from the support box; the sliding connection structure is arranged on the U-shaped cover, and the sliding connection structure includes a slider, which is hinged to one end of the lifting column; the linear drive is arranged at the other end of the lifting column, and the linear drive is used to drive the lifting column to rise and fall.

[0008] Preferably, the opening and closing control mechanism also includes two locking structures, which are respectively arranged on two connecting frames, and the locking structures include a rotating shaft, two clips and a fastener; the rotating shaft passes vertically through the second connecting rod; the two clips are respectively arranged at both ends of the rotating shaft, and the two clips rotate synchronously around the axis of the rotating shaft, and one end of the clip corresponds to the connection between the two second connecting rods; the fastener is arranged at one end of the clip.

[0009] Preferably, the traction and conveying mechanism further comprises a clamping mechanism, which is arranged inside the U-shaped cover and is used to drive the conveying module to move toward the submarine cable.

[0010] Preferably, the traction and conveying mechanism also includes a quick-change structure, which is arranged at the upper end of the clamping mechanism, and the quick-change structure includes a connecting plate and a first guide rod; a mounting groove with the same size as the mounting plate is opened in the middle of the connecting plate, and the mounting plate is inserted into the mounting groove; there are two first guide rods, and the two first guide rods are respectively arranged on both sides of the mounting groove.

[0011] Preferably, the traction conveying mechanism further includes a locking mechanism, which includes a clamping block, which is arranged at one end of the connecting plate, and the two ends of the clamping block are respectively pressed against the two first guide rods.

[0012] Preferably, the locking mechanism also includes a clamping structure, which includes a first U-shaped plate, a bidirectional screw and two pressure plates; the middle part of the first U-shaped plate is connected to the clamping block; the two ends of the bidirectional screw are respectively connected to the two ends of the first U-shaped plate; the two pressure plates are respectively arranged on both sides of the clamping block, and the two pressure plates are respectively connected to the two ends of the bidirectional screw, and the bidirectional screw is used to drive the two pressure plates to move closer to or away from each other.

[0013] Preferably, clamping blocks are provided at both ends of the pressing plate.

[0014] Preferably, the traction and conveying mechanism also includes two guiding stabilizing structures, which are respectively arranged at the two ends of the U-shaped cover, and the two ends of the connecting plate are respectively connected to the two guiding stabilizing structures, and the guiding stabilizing structure includes a rectangular frame and two second guide rods; the rectangular frame is connected to the end of the U-shaped cover; the two second guide rods are respectively arranged on both sides of the inside of the rectangular frame, and the two second guide rods are slidably connected to one end of the connecting plate.

[0015] The traction and conveying method for laying and installing a submarine cable comprises the following steps:

[0016] S1, before the submarine cable passes through the traction and conveying device, the two driving mechanisms respectively drive the two traction and conveying mechanisms to move away from each other, so that the two second connecting rods are perpendicular to the first connecting rod;

[0017] S2, then pass the submarine cable through the three traction and conveying mechanisms, the two driving mechanisms respectively drive the two traction and conveying mechanisms to approach each other, and use the locking structure to fix the connection between the two second connecting rods, so that the first connecting rod and the two second connecting rods form a stable equilateral triangle;

[0018] S3, the three pressing mechanisms respectively drive the corresponding three conveying modules to approach each other at the same speed until the three conveying modules are pressed against the submarine cable;

[0019] S4, the three conveying modules simultaneously apply traction to the submarine cable, so that the submarine cable continuously enters from one side of the device and is laid to the seabed from the other side of the device.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention is provided with three traction and conveying mechanisms and an opening and closing control mechanism. The conveyor belt in the middle traction and conveying mechanism provides pulling force for the movement of the submarine cable, keeps the submarine cable and the conveyor belt moving synchronously, thereby avoiding the wear of the submarine cable surface due to friction resistance. The opening and closing control mechanism adjusts the positions of the two traction and conveying mechanisms. The three traction and conveying mechanisms form an equilateral triangle layout around the submarine cable. At this time, the distances between the center point of the triangle formed by the connecting frame and the three conveying modules are the same. Since the three traction and conveying mechanisms are arranged in a circular array around the submarine cable, the submarine cable is in a stable suspended state in the traction and conveying device. When the three traction and conveying mechanisms work at the same time, the pressures applied by the three traction and conveying mechanisms to the submarine cable will intersect on the central axis of the submarine cable, so that the sections of the submarine cable perpendicular to the central axis will be subjected to uniform pressure around, thereby effectively avoiding the deformation of the submarine cable due to uneven force, and protecting the integrity and performance of the submarine cable.

[0022] 2. The present invention is provided with two driving mechanisms. During the adjustment process, the linear drive applies a vertical upward force to the lifting column, thereby indirectly controlling the rotation angle of the traction and conveying mechanism through the U-shaped cover and the second connecting rod system. When the rotation angle of the second connecting rod around the axial connection with the first connecting rod reaches a preset 30 degrees, the linear drive stops working, effectively preventing the traction and conveying mechanism from pressing on the submarine cable due to excessive rotation angle, thereby protecting the submarine cable from damage. During the rising process of the lifting column, the sliding block slides on the third guide rod, thereby achieving continuous control of the U-shaped cover when the position of the lifting column remains unchanged, thereby achieving precise and synchronous angle adjustment of the two symmetrically arranged traction and conveying mechanisms.

[0023] 3. The present invention is provided with a locking structure. After the ends of the two second connecting rods are butt-jointed, a firm connection between the two second connecting rods is achieved through the cooperation of two clips and fasteners, which not only enhances the overall structural strength of the traction and conveying mechanism, but also forms a stable triangular structure between the first connecting rod and the two second connecting rods, which can effectively resist external vibration and impact, thereby achieving a firm connection between the two symmetrically arranged traction and conveying mechanisms under dynamic working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a stereoscopic diagram of a traction conveyor device.

[0025] Figure 2 It is a left view of a traction conveyor.

[0026] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle.

[0027] Figure 4The present invention is a stereoscopic diagram of three traction conveying mechanisms, a connecting frame and a locking structure in a traction conveying device.

[0028] Figure 5 It is a stereoscopic diagram of a driving mechanism in a traction conveying device.

[0029] Figure 6 The present invention is a stereoscopic diagram of a first connecting rod, a second connecting rod and a locking structure in a traction conveying device.

[0030] Figure 7 The present invention is a stereoscopic diagram of a conveying module, a clamping mechanism, a quick-change structure, a locking mechanism and a guiding stabilizing structure in a traction conveying device.

[0031] Figure 8 The present invention is a stereoscopic diagram of a conveying module and a clamping mechanism in a traction conveying device.

[0032] Fig. 9 The present invention is a stereoscopic diagram of a conveying module and a quick-change structure in a traction conveying device.

[0033] Fig.10 The present invention is a stereoscopic diagram of a first guide rod and a locking mechanism in a traction conveying device.

[0034] Fig.11 The present invention is a stereoscopic diagram of a connecting plate and a guide stabilizing structure in a traction conveying device.

[0035] The numbers in the figure are: 1, bottom plate; 2, traction conveying mechanism; 21, U-shaped cover; 22, conveying module; 221, mounting plate; 222, annular driving structure; 223, conveyor belt; 224, arc-shaped rubber pad; 23, clamping mechanism; 231, screw bidirectional driving structure; 232, moving block; 233, driving plate; 24, quick replacement structure; 241, connecting plate; 242, first guide rod; 2421, card slot; 25, locking mechanism; 251, card block; 252, card structure; 2521, first U-shaped plate; 2522, bidirectional screw; 2523, pressure plate; 2524, block; 26, guide stabilization structure; 261, rectangular frame; 262, second guide rod; 3, opening and closing control mechanism; 31, connecting frame; 311, first connecting rod; 312, second connecting rod; 32, driving mechanism; 321, support box; 322, limit plate; 323, lifting column; 324, sliding connection structure; 3241, slider; 3242, second U-shaped plate; 3243, third guide rod; 325, linear drive; 33, locking structure; 331, rotating shaft; 332, clip; 333, fastener. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Reference Figures 1 to 11 As shown: a traction and conveying device, including a bottom plate 1, the bottom plate 1 is fixed on the hull, and also includes a traction and conveying mechanism 2 and an opening and closing control mechanism 3; there are three traction and conveying mechanisms 2, one of which is arranged along the central axis of the bottom plate 1, and the other two traction and conveying mechanisms 2 are symmetrically arranged on both sides of the central axis of the bottom plate 1, and the two traction and conveying mechanisms 2 are located at the upper end of the first traction and conveying mechanism 2, so that the three traction and conveying mechanisms 2 are arranged at the upper end of the bottom plate 1 in an inverted Chinese character, the traction and conveying mechanism 2 includes a U-shaped cover 21 and a conveying module 22, the conveying module 22 is arranged inside the U-shaped cover 21, and the conveying module 22 includes a mounting plate 221, the mounting plate 221 is arranged parallel to the bottom of the U-shaped cover 21, and the mounting plate 221 is provided An annular driving structure 222, on which a conveyor belt 223 is sleeved, the annular driving structure 222 is used to drive the conveyor belt 223 to move, and a plurality of arc-shaped rubber pads 224 are arranged on the conveyor belt 223; the opening and closing control mechanism 3 includes two connecting frames 31, and the two connecting frames 31 are respectively arranged at the two ends of the U-shaped cover 21, and the connecting frame 31 includes a first connecting rod 311 and two second connecting rods 312, and the middle part of the first connecting rod 311 and the middle part of the two second connecting rods 312 are respectively connected to the ends of the U-shaped covers 21 in the three traction conveying mechanisms 2, and the first connecting rod 311 and the two second connecting rods 312 have the same length, and the two ends of the first connecting rod 311 are respectively axially connected to the two second connecting rods 312.

[0038] In the initial state, the two conveying modules 22 in the two conveying modules 2 are made parallel to each other by adjusting the two symmetrically arranged traction and conveying mechanisms 2. At this time, the space between the two conveying belts 223 in the two conveying modules 22 is large enough to facilitate the staff to easily place the submarine cable on the traction and conveying mechanism 2 in the middle. The conveying belt 223 in the traction and conveying mechanism 2 in the middle provides a pulling force for the movement of the submarine cable, keeping the submarine cable and the conveying belt 223 moving synchronously, thereby avoiding the wear of the submarine cable surface due to friction resistance, which is very important for protecting the expensive and sensitive submarine cable. Then the opening and closing control mechanism 3 adjusts the position of the two traction and conveying mechanisms 2, and connects the ends of the two second connecting rods 312, so that The first connecting rod 311 and the two second connecting rods 312 form an equilateral triangle, and the three traction and conveying mechanisms 2 therefore form an equilateral triangle layout around the submarine cable. At this time, the distances between the center point of the triangle formed by the connecting frame 31 and the three conveying modules 22 are the same. Since the three traction and conveying mechanisms 2 are arranged in a circular array around the submarine cable, the submarine cable is in a stable suspended state in the traction and conveying device. When the three traction and conveying mechanisms 2 work at the same time, the pressure applied by the three traction and conveying mechanisms 2 to the submarine cable will intersect on the central axis of the submarine cable, so that the cross-section of the submarine cable perpendicular to the central axis will be subjected to uniform pressure around, thereby effectively avoiding deformation of the submarine cable due to uneven force and protecting the integrity and performance of the submarine cable.

[0039] Reference Figure 3 and Figure 5 As shown: the opening and closing control mechanism 3 also includes two driving mechanisms 32, which are respectively arranged at the lower ends of two symmetrically arranged traction and conveying mechanisms 2, and the driving mechanism 32 includes a support box 321, a limit plate 322, a lifting column 323, a sliding connection structure 324 and a linear driver 325; the two ends of the support box 321 are respectively connected to the two connecting frames 31; the limit plate 322 is arranged in parallel inside the support box 321; the lifting column 323 passes through the middle of the limit plate 322, and the lifting column 323 is slidably connected to the limit plate 322, and one end of the lifting column 323 extends upward from the support box 32 1; The sliding connection structure 324 is arranged on the U-shaped cover 21, and the sliding connection structure 324 includes a slider 3241, and the slider 3241 is hinged to one end of the lifting column 323. The sliding connection structure 324 also includes a second U-shaped plate 3242 and a third guide rod 3243. The second U-shaped plate 3242 is connected to the U-shaped cover 21, and the two ends of the third guide rod 3243 are respectively connected to the second U-shaped plate 3242. The slider 3241 is slidably arranged on the third guide rod 3243; The linear driver 325 is arranged at the other end of the lifting column 323, and the linear driver 325 is used to drive the lifting column 323 to rise and fall.

[0040] The mass of the traction and conveying mechanism 2 is relatively large. When adjusting the two symmetrically arranged traction and transport mechanisms, the staff cannot accurately control the rotation angle of the traction and conveying mechanism 2. When the rotation angle is too large, the traction and conveying mechanism 2 will press on the submarine cable. By setting up two driving mechanisms 32, during the adjustment process, the linear driver 325 applies a vertical upward force to the lifting column 323, thereby indirectly controlling the rotation angle of the traction and conveying mechanism 2 through the U-shaped cover 21 and the second connecting rod 312 system. When the rotation angle of the second connecting rod 312 around its axial connection with the first connecting rod 311 reaches a preset 30 degrees, the linear driver 325 stops working, effectively preventing the traction and conveying mechanism 2 from pressing on the submarine cable due to excessive rotation angle, and protecting the submarine cable from damage. During the rising process of the lifting column 323, the slider 3241 slides on the third guide rod 3243, thereby realizing continuous control of the U-shaped cover 21 when the position of the lifting column 323 remains unchanged, thereby realizing accurate and synchronous angle adjustment of the two symmetrically arranged traction and conveying mechanisms 2.

[0041] Reference Figure 4 and Figure 6 As shown: the opening and closing control mechanism 3 also includes two locking structures 33, which are respectively arranged on the two connecting frames 31, and the locking structure 33 includes a rotating shaft 331, two clips 332 and a fastener 333; the rotating shaft 331 vertically passes through the second connecting rod 312; the two clips 332 are respectively arranged at both ends of the rotating shaft 331, and the two clips 332 rotate synchronously around the axis of the rotating shaft 331, and one end of the clip 332 corresponds to the connection between the two second connecting rods 312; the fastener 333 is arranged at one end of the clip 332.

[0042] During the laying process of the submarine cable, due to the movement of the submarine cable and the influence of the external environment, the two symmetrically arranged traction and conveying mechanisms 2 may temporarily lose contact with the submarine cable. This separation will not only affect the laying efficiency, but also may cause damage to the submarine cable. By setting a locking structure 33, after the ends of the two second connecting rods 312 are butt-jointed, the two second connecting rods 312 are firmly connected through the cooperation of the two clips 332 and the fasteners 333, which not only enhances the overall structural strength of the traction and conveying mechanism 2, but also forms a stable triangular structure between the first connecting rod 311 and the two second connecting rods 312, which can effectively resist external vibration and impact, thereby realizing a firm connection of the two symmetrically arranged traction and conveying mechanisms 2 under dynamic working conditions.

[0043] Reference Figure 3 , Figure 7 and Figure 8As shown: the traction and conveying mechanism 2 also includes a clamping mechanism 23, which is arranged inside the U-shaped cover 21. The clamping mechanism 23 is used to drive the conveying module 22 to move toward the submarine cable. The clamping mechanism 23 includes a screw bidirectional driving structure 231, two moving blocks 232 and two driving plates 233. The screw bidirectional driving structure 231 is arranged inside the U-shaped cover 21, and the two moving blocks 232 are respectively arranged at both ends of the screw bidirectional driving structure 231. The screw bidirectional driving structure 231 is used to drive the two moving blocks 232 to approach or move away from each other. The two driving plates 233 are respectively arranged at the upper ends of the two moving blocks 232, and the two ends of the driving plate 233 are respectively hinged to the moving blocks 232 and the mounting plate 221.

[0044] When the diameter of the submarine cable is small, the traditional fixed conveying module 22 may not be able to fully contact the surface of the submarine cable, resulting in poor conveying effect. By setting a clamping mechanism 23, under the action of the clamping mechanism 23, the traction and conveying mechanism 2 located in the middle first contacts the submarine cable, and applies an upward force through the clamping mechanism 23 to make the conveying module 22 close to the submarine cable. At the same time, the other two symmetrically arranged traction and conveying mechanisms 2 are operated, and the conveying modules 22 are pushed to contact the submarine cable through their respective clamping mechanisms 23. Finally, three conveying modules 22 are formed at the center point of the connecting frame 31 to stably clamp the submarine cable, thereby realizing effective clamping and stable transportation of submarine cables of different diameters.

[0045] Reference Figure 7 and Fig. 9 As shown: the traction conveying mechanism 2 also includes a quick-change structure 24, which is arranged at the upper end of the clamping mechanism 23, and the quick-change structure 24 includes a connecting plate 241 and a first guide rod 242; a mounting groove with the same size as the mounting plate 221 is opened in the middle of the connecting plate 241, and the mounting plate 221 is inserted into the mounting groove; there are two first guide rods 242, and the two first guide rods 242 are respectively arranged on both sides of the mounting groove, and first sliding grooves corresponding to the first guide rods 242 are opened on both sides of the mounting plate 221, and the cooperation between the first sliding groove and the first guide rod 242 keeps the mounting plate 221 and the connecting plate 241 parallel and connected.

[0046] When the traditional traction conveying device is repaired and maintained, it is necessary to shut down and disassemble the entire device, which is not only time-consuming and labor-intensive, but also seriously affects the construction efficiency. By setting a quick replacement structure 24, the conveying module 22 is inserted as a whole on the connecting plate 241. When the conveying module 22 needs to be repaired, the mounting plate 221 is pulled, and the mounting plate 221 slides out of the connecting plate 241 along the two first guide rods 242, so that the conveying module 22 is pulled out of the traction conveying mechanism 2 as a whole, and then the mounting plate 221 on the new conveying module 22 is aligned with the two first guide rods 242, and the mounting plate 221 is pushed into the connecting plate 241, so that the new conveying module 22 is installed in the traction conveying mechanism 2. Since the conveying module 22 can be quickly replaced, the traction conveying mechanism 2 can be quickly restored to the working state during the construction process, reducing the downtime caused by maintenance, thereby realizing the rapid replacement and maintenance of the conveying module 22 in the traction conveying mechanism 2, and significantly improving the construction efficiency and equipment availability.

[0047] Reference Figure 7 and Fig.10 As shown, the traction conveying mechanism 2 further includes a locking mechanism 25 , which includes a clamping block 251 . The clamping block 251 is arranged at one end of the connecting plate 241 , and the two ends of the clamping block 251 are respectively pressed against the two first guide rods 242 .

[0048] Since the mounting plate 221 is slidably connected to the connecting plate 241, when the conveying module 22 is conveying the submarine cable, the vibration of the conveying module 22 will cause the mounting plate 221 to vibrate along the first guide rod 242. By setting the clamping block 251, grooves corresponding to the first guide rod 242 are opened on both sides of the clamping block 251. After the new conveying module 22 is installed on the connecting plate 241, the two ends of the clamping block 251 are first aligned with the two first guide rods 242 respectively, and then a force is applied to the clamping block 251 along the axial direction of the first guide rod 242. The two ends of the clamping block 251 are respectively clamped on the two first guide rods 242, and the side wall of the clamping block 251 is abutted against one end of the mounting plate 221. The cooperation between the clamping block 251 and the connecting plate 241 fixes the position of the mounting plate 221, thereby effectively suppressing the vibration of the conveying module 22 during operation.

[0049] Reference Fig.10 As shown: the locking mechanism 25 also includes a clamping structure 252, which includes a first U-shaped plate 2521, a bidirectional screw 2522 and two pressure plates 2523; the middle part of the first U-shaped plate 2521 is connected to the clamping block 251; the two ends of the bidirectional screw 2522 are respectively connected to the two ends of the first U-shaped plate 2521; the two pressure plates 2523 are respectively arranged on both sides of the clamping block 251, and the two pressure plates 2523 are respectively connected to the two ends of the bidirectional screw 2522, and the bidirectional screw 2522 is used to drive the two pressure plates 2523 to move closer to or away from each other.

[0050] The clamping block 251 fixes the mounting plate 221 by means of the friction between itself and the first guide rod 242. The magnitude of the friction force is limited. When the mounting plate 221 is subjected to a force along the axis direction of the first guide rod 242 that is greater than the friction force, the mounting plate 221 will push the clamping block 251 to move, resulting in a reduction in the contact area between the clamping block 251 and the first guide rod 242, and the friction force between the clamping block 251 and the first guide rod 242 is further reduced. By setting the clamping structure 252, when the clamping block 251 is fixed to the mounting plate 221, the clamping block 251 can be fixed to the mounting plate 221. After being inserted into one end of the connecting plate 241, the bidirectional screw 2522 is rotated, and the bidirectional screw 2522 drives the two pressing plates 2523 to approach each other, and the two ends of the pressing plates 2523 are pressed against the two ends of the connecting plate 241. The friction between the two pressing plates 2523 and the connecting plate 241 increases with the increase of the pressure between the pressing plates 2523 and the connecting plate 241, making it difficult for the pressing plates 2523 to slide relative to the connecting plate 241, thereby enhancing the locking effect and improving the stability and reliability of the conveying module 22 during operation.

[0051] Reference Fig.10 As shown, a clamping block 2524 is disposed at both ends of the pressing plate 2523 , and a clamping groove 2421 corresponding to the clamping block 2524 is formed on the first guide rod 242 , and the size of the clamping groove 2421 matches the size of the clamping block 2524 .

[0052] When the pressing plate 2523 is subjected to the force toward the clamping block 251 for a long time, the pressing plate 2523 will bend, and the contact area between the pressing plate 2523 and the connecting plate 241 will be reduced, so that the effect of the pressing plate 2523 is reduced. By setting the clamping blocks 2524 at both ends of the pressing plate 2523, when the two-way screw 2522 drives the two pressing plates 2523 to approach each other, the pressing plate 2523 drives the two clamping blocks 2524 at both ends to move, and the clamping blocks 2524 pass through the clamping block 251 and are inserted into the first guide rod 242. The card block 2524 is in the card slot 2421 and cannot move in the card slot 2421, so that the pressure plate 2523 cannot move along the axial direction of the first guide rod 242. Therefore, the pressure plate 2523 does not need to be subjected to a large force toward the card block 251. The cooperation between the card block 2524 and the card slot 2421 enhances the rigidity of the overall structure, making the entire locking mechanism 25 more stable when subjected to external force, thereby effectively preventing the pressure plate 2523 from bending or deforming under the force toward the card block 251 for a long time.

[0053] Reference Figure 7 and Fig.11As shown: the traction and conveying mechanism 2 also includes two guiding and stabilizing structures 26, which are respectively arranged at the two ends of the U-shaped cover 21, and the two ends of the connecting plate 241 are respectively connected to the two guiding and stabilizing structures 26, and the guiding and stabilizing structures 26 include a rectangular frame 261 and two second guiding rods 262; the rectangular frame 261 is connected to the end of the U-shaped cover 21; the two second guiding rods 262 are respectively arranged on both sides inside the rectangular frame 261, and the two second guide rods 262 are slidably connected to one end of the connecting plate 241.

[0054] When the clamping mechanism 23 drives the conveying module 22 to move toward the center point of the connecting frame 31, if the mounting plate 221 cannot maintain translation, the conveyor belt 223 will be in an inclined state, and the conveyor belt 223 cannot completely contact the submarine cable. By setting two guiding stabilizing structures 26, the two ends of the connecting plate 241 are respectively arranged in two rectangular frames 261, and the two sides of the connecting plate 241 are respectively slidably connected to the two second guide rods 262. The second guide rod 262 can limit the movement of the connecting plate 241 along the axial direction of the second guide rod 262. Therefore, the connecting plate 241 maintains translation, so that the conveyor belt 223 can maintain stable translation, thereby ensuring that the conveyor belt 223 is in full contact with the submarine cable.

[0055] The traction and conveying method for laying and installing a submarine cable comprises the following steps:

[0056] S1, before the submarine cable passes through the traction and conveying device, the two driving mechanisms 32 respectively drive the two traction and conveying mechanisms 2 to move away from each other, so that the two second connecting rods 312 are perpendicular to the first connecting rod 311;

[0057] S2, then pass the submarine cable through the three traction and conveying mechanisms 2, and the two driving mechanisms 32 respectively drive the two traction and conveying mechanisms 2 to approach each other, and use the locking structure 33 to fix the connection between the two second connecting rods 312, so that the first connecting rod 311 and the two second connecting rods 312 form a stable equilateral triangle;

[0058] S3, the three pressing mechanisms 23 respectively drive the corresponding three conveying modules 22 to approach each other at the same speed until the three conveying modules 22 are pressed against the submarine cable;

[0059] S4, the three conveying modules 22 simultaneously apply traction to the submarine cable, so that the submarine cable continues to enter from one side of the device and is laid to the seabed from the other side of the device.

[0060] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A traction conveying device, comprising a bottom plate, the bottom plate being fixed on a hull, characterized in that: It also includes a traction conveying mechanism and an opening and closing control mechanism; There are three traction conveying mechanisms, wherein the first traction conveying mechanism is arranged along the central axis of the bottom plate, and the other two traction conveying mechanisms are symmetrically arranged on both sides of the central axis of the bottom plate, and the other two traction conveying mechanisms are located at the upper end of the first traction conveying mechanism, so that the three traction conveying mechanisms are arranged in an inverted T shape at the upper end of the bottom plate, and the traction conveying mechanism includes a U-shaped cover and a conveying module, and the conveying module is arranged inside the U-shaped cover; The opening and closing control mechanism includes two connecting frames, which are respectively arranged at the two ends of the U-shaped cover, and the connecting frames include a first connecting rod and two second connecting rods, the middle part of the first connecting rod and the middle part of the two second connecting rods are respectively connected to the ends of the U-shaped covers in the three traction conveying mechanisms, and the first connecting rod and the two second connecting rods have the same length, and the two ends of the first connecting rod are respectively axially connected to the two second connecting rods; The opening and closing control mechanism also includes two driving mechanisms, which are respectively arranged at the lower ends of two symmetrically arranged traction and conveying mechanisms, and the driving mechanism includes a support box, a limit plate, a lifting column, a sliding connection structure and a linear drive; the two ends of the support box are respectively connected to the two connecting frames; the limit plate is arranged in parallel inside the support box; the lifting column passes through the middle of the limit plate, and the lifting column is slidably connected to the limit plate, and one end of the lifting column extends upward from the support box; the sliding connection structure is arranged on the U-shaped cover, and the sliding connection structure includes a slider, which is hinged to one end of the lifting column; the linear drive is arranged at the other end of the lifting column, and the linear drive is used to drive the lifting column to rise and fall.

2. A traction conveying device according to claim 1, characterized in that: The opening and closing control mechanism also includes two locking structures, which are respectively arranged on two connecting frames, and the locking structures include a rotating shaft, two clips and a fastener; The rotating shaft vertically passes through the second connecting rod; Two clips are respectively arranged at two ends of the rotating shaft, and the two clips rotate synchronously around the axis of the rotating shaft, and one end of the clip corresponds to the connection point of the two second connecting rods; The fastener is disposed at one end of the clip.

3. A traction conveying device according to claim 1, characterized in that: The traction conveying mechanism also includes a clamping mechanism, which is arranged inside the U-shaped cover and is used to drive the conveying module to move toward the submarine cable; The conveying module comprises a mounting plate, which is arranged parallel to the bottom of the U-shaped cover, an annular driving structure is arranged on the mounting plate, and a conveying belt is sleeved on the annular driving structure.

4. A traction conveying device according to claim 3, characterized in that: The traction conveying mechanism also includes a quick-change structure, which is arranged at the upper end of the clamping mechanism, and includes a connecting plate and a first guide rod; A mounting groove having the same size as the mounting plate is provided in the middle of the connecting plate, and the mounting plate is inserted into the mounting groove; There are two first guide rods, and the two first guide rods are respectively arranged on both sides of the installation groove.

5. A traction conveying device according to claim 4, characterized in that: The traction conveying mechanism also includes a locking mechanism, which includes a clamping block, which is arranged at one end of the connecting plate, and the two ends of the clamping block are respectively pressed against the two first guide rods.

6. A traction conveying device according to claim 5, characterized in that: The locking mechanism also includes a clamping structure, which includes a first U-shaped plate, a bidirectional screw and two pressure plates; The middle part of the first U-shaped plate is connected to the clamping block; Two ends of the bidirectional screw are respectively connected to two ends of the first U-shaped plate; The two pressing plates are respectively arranged on both sides of the clamping block, and the two pressing plates are respectively connected to the two ends of the bidirectional screw rod, and the bidirectional screw rod is used to drive the two pressing plates to move closer to each other or away from each other.

7. A traction conveying device according to claim 6, characterized in that: Both ends of the pressing plate are provided with clamping blocks.

8. A traction conveying device according to claim 5, characterized in that: The traction conveying mechanism also includes two guiding and stabilizing structures, which are respectively arranged at the two ends of the U-shaped cover, and the two ends of the connecting plate are respectively connected to the two guiding and stabilizing structures, and the guiding and stabilizing structures include a rectangular frame and two second guiding rods; The rectangular frame is connected to the end of the U-shaped cover; The two second guide rods are respectively arranged on two sides of the inside of the rectangular frame, and the two second guide rods are slidably connected to one end of the connecting plate.

9. A traction and conveying method for laying and installing a submarine cable, applied to a traction and conveying device as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Before the submarine cable passes through the traction and conveying device, the two driving mechanisms respectively drive the two traction and conveying mechanisms to move away from each other, so that the two second connecting rods are perpendicular to the first connecting rod; Then the submarine cable is passed through the three traction and conveying mechanisms, and the two driving mechanisms respectively drive the two traction and conveying mechanisms to approach each other, and the connection between the two second connecting rods is fixed by a locking structure, so that the first connecting rod and the two second connecting rods form a stable equilateral triangle; The three pressing mechanisms respectively drive the corresponding three conveying modules to approach each other at the same speed until the three conveying modules are pressed against the submarine cable; The three delivery modules simultaneously apply traction to the submarine cable, allowing the submarine cable to continuously enter from one side of the device and be laid to the seabed from the other side of the device.

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