Submarine cable laying equipment

Abstract

This application discloses a submarine cable laying device, which includes a main body, a pressing device, and a bending limiting assembly. The pressing device includes a connecting shaft, a pressing arm, and a driving unit. The connecting shaft is rotatably mounted on the main body. The pressing arm is driven by the driving unit to rotate about the axis of the connecting shaft. The bending limiting assembly includes a first tube and a plurality of second tubes. The first tube is connected to one end of the pressing arm and has a first channel with a tendency to be arc-shaped. Each second tube has a second channel, and the plurality of second tubes are connected in a coaxial manner with the plurality of second channels to form a strip-shaped composition. The first tube is connected to one of the second tubes at one end of the strip-shaped composition, so that the first channel communicates with the plurality of second channels for the submarine cable to pass through, thereby limiting the bending amplitude of the submarine cable that passes through the first tube and the plurality of second tubes simultaneously.

Description

Technical Field

[0001] This application relates to the field of submarine cable laying technology, specifically to submarine cable laying equipment. Background Technology

[0002] Currently, the laying machine is a common underwater cable laying equipment. It is responsible for laying the cable in the trench that has been dug on the bottom of the sea to complete the cable laying operation.

[0003] It is known that most cable laying machines are moved by being towed by the mother ship, and the submarine cables laid by the laying machines are generally provided by the mother ship. Therefore, when laying submarine cables, if the angle of the submarine cable entering the laying machine is not properly controlled, the submarine cable is very likely to be pressed against the opening of the pipe entering the internal channel of the laying machine and bend, thereby damaging the internal structure of the submarine cable and affecting the transmission performance of the submarine cable. Utility Model Content

[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a submarine cable laying device, wherein the submarine cable laying device comprises:

[0005] The main body of the machine includes a mounting frame and a pair of foot plates. The front end of the mounting frame is provided with a connecting part for connecting a traction rope, and the bottom of the mounting frame also forms an movable space. The two foot plates are symmetrically connected to the bottom of the mounting frame with respect to the movable space.

[0006] A pressing device includes a connecting shaft, a pressing arm, and a driving unit. The connecting shaft is rotatably connected to the front end of the mounting frame and located in the movable space. The pressing arm is fixedly connected to the outer periphery of the connecting shaft, and the interior of the pressing arm has a passageway extending along the axial direction of the pressing arm and passing through the front and rear ends of the pressing arm for the submarine cable to pass through. The driving unit is hinged to the mounting frame at a position away from the connecting shaft, and the driving unit has a retractable driving end. The pressing arm is also hinged to the driving end of the driving unit.

[0007] A bend-limiting assembly includes a first tube and multiple second tubes. The first tube has a first channel inside, which is configured to pass through both ends of the first tube and has an overall arc-shaped structure. The first tube is connected to the pressure arm so that one port of the first channel is aligned with one port of the passageway. Each second tube extends axially inside to form a second channel, and both ends of each second tube are penetrated by the second channel. The multiple second tubes are inclinedly arranged on multiple parallel planes so that the multiple second channels are coaxial and connected. Adjacent two second tubes are connected in a detachable manner. The end of one second tube away from other second tubes is connected to the end of the first tube away from the pressure arm so that one port of the second channel is aligned with one port of the first channel.

[0008] According to one embodiment of this application, the bending limiting assembly further includes a plurality of annular members, each annular member forming an annular opening, and the top of the first tube is detachably connected to one of the annular members, and the top of each of the second tubes is also detachably connected to one of the annular members, and the plurality of annular members are coaxially arranged relative to each other on a plurality of parallel planes so that the plurality of annular openings are connected and combined to form a passage for the traction rope to pass through.

[0009] According to one embodiment of this application, the top of each of the second tubes extends upward at least partially to form a second protrusion, and one of the second protrusions is configured to connect with one of the annular members.

[0010] According to one embodiment of this application, the pressure arm further extends upward at the top to form an extension portion, the top of the extension portion being hinged to the driving end of the driving unit. The top wall of the pressure arm forming the passage is provided to gradually curve upward from the end away from the first tube body to form a pressing portion with an overall arcuate structure. The pressing portion has an arcuate pressing surface that convexes towards the rear of the mounting bracket.

[0011] According to one embodiment of this application, the pressure arm is further provided with two symmetrical protruding edges on both sides of the pressing part, and the two protruding edges extend toward both sides of the passageway until they surround the passageway.

[0012] According to one embodiment of this application, the submarine cable laying equipment further includes a trenching assembly. The trenching assembly includes at least one flow guiding member and a flow collector. Each flow guiding member includes a flow guiding pipe, an adapter, and a suction member. The flow guiding pipe is connected to one side of the mounting frame and has an inlet and a flow channel communicating with the inlet. The connecting shaft has an internal flow passage. One flow guiding pipe is rotatably connected to one end of the connecting shaft via an adapter, so that the flow channel communicates with the flow passage. One suction member... The component is connected to the flow channel of one of the guide tubes, and a suction component is configured to create a negative pressure at one of the inlets to guide fluid from the inlet into the flow channel. The collector is connected to the bottom of the pressure arm, and the collector has a collection cavity inside. The collector extends toward the connecting shaft to form a guide tube section, and the collector communicates the collection cavity with the flow channel through the guide tube section. The collector also has a plurality of downward-facing nozzles evenly arranged at the bottom for spraying fluid into the collection cavity.

[0013] According to one embodiment of this application, the trenching assembly further includes at least one filter unit, one of the filter units being detachably connected to the inlet of one of the flow guides, and each of the filter units having a plurality of sieve holes of predetermined size along the direction in which the fluid is guided, so that the fluid flows through the filter unit and into the flow channel.

[0014] According to one embodiment of this application, the machine body further includes a pair of scrapers. The two scrapers are arranged on both sides of the pressure arm in a relatively opposite and spaced manner, and are located between the two foot plates. The two scrapers are also fixedly connected to the rear ends of the two foot plates, and the bottom ends of the two scrapers are flush with the bottom ends of the two foot plates.

[0015] According to one embodiment of this application, the two scrapers are configured to tilt relative to each other to form an inverted V-shape.

[0016] According to one embodiment of this application, the submarine cable laying equipment further includes a coiling component, which includes a coiling body and a plurality of fixing rails. The coiling body is connected to the rear end of the mounting frame, and both ends of the coiling body extend radially outward to form two steps, so that the outer periphery of the coiling body forms an annular coiling space for winding the transmission line. The plurality of fixing rails are evenly and spaced apart in the circumferential position of the coiling body, and each fixing rail is configured to span the coiling space so that its two ends are respectively connected to the two steps, so that the transmission line wound in the coiling space is limited. Attached Figure Description

[0017] Figure 1A perspective view of the submarine cable laying equipment described in this application is shown.

[0018] Figure 2 A schematic diagram of the submarine cable laying equipment described in this application is shown at one angle.

[0019] Figure 3 for Figure 2 An enlarged view of point A in the submarine cable laying equipment shown.

[0020] Figure 4 A cross-sectional view of the submarine cable laying equipment described in this application is shown. Figure 1 .

[0021] Figure 5 A cross-sectional view of the submarine cable laying equipment described in this application is shown. Figure 2 .

[0022] Figure 6 A schematic diagram of the submarine cable laying equipment described in this application in its operational state is shown. Detailed Implementation

[0023] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0024] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0025] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0026] refer to Figures 1 to 2 A preferred embodiment of the submarine cable laying device according to this application will be described in detail below. The submarine cable laying device includes a main body 10, a bending limiting component 20 and a pressing device 30.

[0027] Specifically, the main body 10 includes a mounting frame 11 and a pair of foot plates 12. The mounting frame 11 has a connecting portion 111 at its front end for connecting a traction rope 91, and the bottom of the mounting frame 11 also forms an movable space 1101 for the pressing device 30 to press and deliver a submarine cable 92. The two foot plates 12 are symmetrically connected to the bottom of the mounting frame 11 with respect to the movable space 1101.

[0028] It is understood that when the traction rope 91 pulls the mounting frame 11, the main body 10 moves to the bottom of the water by means of the two foot plates 12 to support the submarine cable laying equipment in completing the work of laying the submarine cable 92.

[0029] Preferably, one end of each foot plate 12 is configured to extend horizontally toward the front of the mounting frame 11 and partially bend upward to form an arcuate portion 121 in front of the mounting frame 11, each arcuate portion 121 having an arcuate surface convex toward the front of the mounting frame 11.

[0030] It should be noted that the front of the mounting bracket 11 is the direction in which the main body 10 is driven to move. When the foot plate 12 moves with the mounting bracket 11 and encounters an obstacle, the arc-shaped part 121 of the foot plate 12 reduces the obstruction effect on the main body 10, thereby enabling the main body 10 to easily cross the obstacle.

[0031] The bending limiting assembly 20 includes a first tube 21 and a plurality of second tubes 22. The first tube 21 has a first channel 2101 inside, and the first channel 2101 is configured to extend through both ends of the first tube 21, exhibiting an overall arc-shaped structure. Specifically, the middle portion of the first channel 2101 is further offset from the axis of the first tube 21 than its two ends. Furthermore, the first tube 21 is disposed on the pressing device 30, with the other end of the first channel 2101 facing upwards, away from the pressing device 30.

[0032] Each of the second tube bodies 22 extends axially to form a second channel 2201, and both ends of each second tube body 22 are penetrated by the second channel 2201. Multiple second tube bodies 22 are inclinedly arranged on multiple parallel planes so that the multiple second channels 2201 are coaxial and interconnected, and adjacent second tube bodies 22 are connected in a detachable manner. Furthermore, the end of one second tube body 22 away from the other second tube bodies 22 is connected to an end of the first tube body 21 away from the pressing device 30, so that a port of the second channel 2201 is aligned with a port of the first channel 2101.

[0033] Those skilled in the art will understand that the cross-sectional diameter of the first channel 2101 and the cross-sectional diameter of each of the second channels 2201 are larger than the cross-sectional diameter of the submarine cable 92. That is, the submarine cable 92 passes through the first channel 2101 of the first tube 21 and the multiple second channels 2201 of the multiple second tubes 22 simultaneously and is pressed by the pressing device 30. When the submarine cable laying equipment moves by the traction of the traction rope 91, the portion of the submarine cable 92 located inside the first tube 21 abuts against the inner wall forming the first channel 2101. Since the first channel 2101 is generally arc-shaped, the portion of the submarine cable 92 located inside the first channel 2101 is also arc-shaped, thereby limiting the bending range of the submarine cable 92 and preventing the submarine cable 92 from being damaged due to excessive bending.

[0034] Preferably, the bending limiting assembly 20 further includes a plurality of annular members 23, each annular member 23 forming an annular opening 2301, and the top of the first tube 21 is detachably connected to one annular member 23, and the top of each second tube 22 is also detachably connected to one annular member 23, and the plurality of annular members 23 are coaxially arranged relative to each other on a plurality of parallel planes so that the plurality of annular openings 2301 are connected and combined to form a passage for the traction rope 91 to pass through.

[0035] It is worth noting that the size of the annular opening 2301 of each of the annular components 23 is set to be larger than the size of the traction rope 91. When the traction rope 91 pulls the main body 10 to move, at least part of the end of the traction rope 91 near the connecting part 111 abuts against the inner wall of the annular opening 2301 formed by the multiple annular components 23 and is subjected to downward force. Compared with the traction rope 91 being subjected to force only at the connection point with the connecting part 111, the range of reaction force on the traction rope 91 abutted by the annular component 23 is increased, making it less likely for the front end of the main body 10 to be lifted off the moving surface, thereby enabling the submarine cable laying equipment to move more smoothly when pulled.

[0036] Preferably, the top of each of the second tube bodies 22 extends upward at least partially to form a second protrusion 221, and one of the second protrusions 221 is provided for connection with one of the annular members 23.

[0037] The pressing device 30 includes a connecting shaft 31, a pressing arm 32, and a driving unit 33. The connecting shaft 31 is rotatably connected to the front end of the mounting frame 11 and is located in the movable space 1101. The pressing arm 32 is fixedly connected to the outer periphery of the connecting shaft 31, and the interior of the pressing arm 32 has a passage 3201 that extends axially along the pressing arm 32 and passes through the front and rear ends of the pressing arm 32 to allow the submarine cable 92 to pass through. The driving unit 33 is hinged to the mounting frame 11 at a position away from the connecting shaft 31, and the driving unit 33 has a retractable driving end. The pressing arm 32 is also hinged to the driving end of the driving unit 33, so that when the driving unit 33 extends or retracts the driving end, the pressing arm 32 is driven to rotate about the connecting shaft 31 as the rotation axis.

[0038] One end of the first tube 21 away from the second tube 22 is connected to the front end of the pressure arm 32, so that one port of the first channel 2101 away from the second channel 2201 is aligned with one port of the passage 3201.

[0039] It is understandable that when the pressure arm 32 is rotated by the drive unit 33, the submarine cable 92 passing through the inside of the pressure arm 32 rotates synchronously with the pressure arm 32 and is gradually pressed.

[0040] Preferably, specifically as follows Figure 1 and Figure 2 As shown, the pressure arm 32 also extends upward at the top to form an extension 321, and the driving end of the driving unit 33 is hinged to the top of the extension 321.

[0041] It should be noted that the direction in which the extension 321 of the pressure arm 32 forms is consistent with the top orientation of the mounting bracket 11. Thus, when the drive unit 33 is activated to extend the drive end of the drive unit 33, the pressure arm 32 is driven by the extension 321 to rotate about the connecting shaft 31. At this time, the pressure arm 32 gradually enters a standby state where it stops pressing the submarine cable 92. When the drive end of the drive unit 33 retracts, the pressure arm 32 is also driven by the extension 321 to rotate about the connecting shaft 31. At this time, the pressure arm 32 gradually enters a working state where it begins pressing the submarine cable 92.

[0042] Preferably, such as Figure 5 and Figure 6As shown, the pressure arm 32, forming the top wall of the passageway 3201, is configured to gradually curve upwards from the end away from the first tube 21, forming a pressure part 322 with an overall arc-shaped structure. The pressure part 322 has an arc-shaped pressure surface convex towards the rear of the mounting bracket 11. When the drive unit 33 drives the pressure arm 32 to press the submarine cable 92, the pressure part 322 is synchronously rotated to change the arc-shaped convexity until the arc-shaped pressure surface presses the submarine cable 92 into place. During this process, the pressure part 322 provides support for the pressed submarine cable 92, thereby preventing the submarine cable 92 from bending during pressing. Specifically, as shown... Figure 6 As shown.

[0043] More preferably, the pressure arm 32 is also provided with two symmetrical protrusions 323 on both sides of the pressure part 322, and the two protrusions 323 extend toward both sides of the passage 3201 until they surround the passage 3201. In this way, when the pressure part 322 presses against the submarine cable 92, the two protrusions 323 on both sides of the pressure part 322 limit the submarine cable 92, thereby preventing the submarine cable 92 from swinging relative to both sides of the pressure part 322 due to external factors such as water flow, so that at least part of the submarine cable 92 cannot be accurately pressed into place.

[0044] Preferably, the drive unit 33 is implemented as a hydraulic cylinder.

[0045] It should be noted that, in a modified embodiment, the main body further includes a protective plate, which is connected to the top of the mounting frame 11 and located above the drive unit 33. Thus, when the submarine cable laying equipment rises and leaves the working water area, the protective plate can shield the drive unit 33 from debris during the evacuation, thereby preventing the drive unit 33 from being damaged by debris.

[0046] Furthermore, the submarine cable laying equipment also includes a trenching component 40, which is used to create a trench for the pressing device 30 to press the submarine cable 92.

[0047] Specifically, the trenching assembly 40 includes at least one flow guiding member 41 and a flow collector 42, wherein each flow guiding member 41 includes a flow guiding pipe 411, an adapter 412 and a suction member 413. The flow guiding pipe 411 is connected to one side of the mounting bracket 11, and the flow guiding pipe 411 has an inlet 41101 and a flow channel 41102 communicating with the inlet 41101. The connecting shaft 31 has a flow channel 3101 inside, and one of the flow guiding pipes 411 is rotatably connected to one end of the connecting shaft 31 through one of the adapters 412, so that the flow channel 41102 communicates with the flow channel 3101. One of the suction elements 413 is connected to the flow channel 41102 of one of the flow guides 411, and the suction element 413 is configured to create a negative pressure at one of the inlets 41101 to guide fluid from the inlet 41101 into the flow channel 41102.

[0048] The collector 42 is connected to the bottom of the pressure arm 32, and the collector 42 has a collecting cavity 4201 inside. The collector 42 extends towards the connecting shaft 31 to form a guide tube 421, and the collector 42 communicates the collecting cavity 4201 with the flow channel 3101 through the guide tube 421, allowing the guided fluid to flow through the interior of the connecting shaft 31 and into the collecting cavity 4201. Furthermore, the collector 42 also has a plurality of downward-facing nozzles evenly arranged at its bottom to eject the fluid entering the collecting cavity 4201.

[0049] Thus, the flow guiding member 41 guides the fluid into the interior of the collector 42, and sprays the guided fluid toward the bottom of the collector 42 through the plurality of nozzles 422 of the collector 42, so that the soil located below the collector 42 is compressed to form a groove for the pressing device 30 to press the submarine cable 92.

[0050] In a preferred embodiment, specifically as follows: Figure 1 and Figure 2 As shown, the number of the flow guiding components 41 is set to two, that is, the number of the flow guiding tube 411, the suction component 413 and the adapter 412 are two each, and the two flow guiding tubes 411 are respectively arranged on opposite sides of the mounting frame 11, and the two flow guiding tubes 411 are respectively rotatably connected to the two ends of the connecting shaft 31 through the two adapters 412, so that the flow channel 41102 of each flow guiding tube 411 is connected to the flow channel 3101 of the connecting shaft 31.

[0051] Preferably, the adapter 412 of each of the flow guiding members 41 is implemented as a rotary joint, and the suction member 413 of each of the flow guiding members 41 is implemented as a submersible pump.

[0052] More preferably, specifically as follows Figure 3 As shown, the trenching assembly 40 further includes at least one filter unit 43, one of which is detachably connected to the inlet 41101 of one of the flow guide pipes 411, and each filter unit 43 is provided with a plurality of screen holes of predetermined size along the direction in which the fluid is guided, so that the fluid flows through the filter unit 43 and enters the flow channel 41102.

[0053] Furthermore, the main body 10 also includes a pair of scrapers 13. Preferably, the two scrapers 13 are arranged on both sides of the pressure arm 32 in a relatively opposite and spaced manner, and are located between the two foot plates 12. The two scrapers 13 are also fixedly connected to the rear ends of the two foot plates 12, and the bottom ends of the two scrapers 13 are flush with the bottom ends of the two foot plates 12. Thus, when the submarine cable laying equipment moves and presses the submarine cable 92 into the trench formed by the pressing device 30, the two scrapers 13 are driven to move with the two foot plates 12 respectively, so that the soil on both sides of the trench is scraped back into the trench to bury the pressed submarine cable 92.

[0054] Preferably, the two scrapers 13 are connected to the two foot plates 12 in an inverted V-shape with their relative inclinations, so that the soil on both sides of the trench can be more easily scraped back into the trench along the inclination direction of the two scrapers 13, thereby making the submarine cable 92 more stably buried.

[0055] Furthermore, the submarine cable laying equipment also includes a controller 50. Preferably, the controller 50 is connected to the top of the mounting frame 11, and the drive unit 33 and the suction component 413 are both controllably connected to the controller 50.

[0056] More preferably, the main body 10 further includes a protective cover 14, which is connected to the top of the mounting bracket 11, and the protective cover 14 forms a storage space so that the controller 50 is stored inside the protective cover 14, thereby preventing the controller 50 from being damaged by impact from external objects.

[0057] In addition, the submarine cable laying equipment also includes a coiling component 60, which is used to coil a transmission line 93 that transmits high-power electrical energy and photoelectric signals from the mother ship to the controller 50, so as to prevent the transmission line 93 from interfering with the movement of the submarine cable laying equipment.

[0058] Preferably, the gathering member 60 includes a gathering body 61 and a plurality of fixing bars 62. The gathering body 61 is connected to the rear end of the mounting frame 11 and close to the controller 50. Both ends of the gathering body 61 extend radially outward to form two steps 611, so that the outer periphery of the gathering body 61 forms an annular gathering space 6101 for winding the transmission line 93. The plurality of fixing bars 62 are evenly and spaced apart in the circumferential position of the gathering body 61, and each fixing bar 62 is configured to span the gathering space 6101 so that its two ends are respectively connected to the two steps 611 to limit the transmission line 93 wound in the gathering space 6101.

[0059] Preferably, the gathering member 60 further includes a wire cage 63, which is connected to the mounting bracket 11 and close to the gathering body 61, and the wire cage 63 has a wire channel 6301 that tends to be funnel-shaped inside, which extends from one end of the wire cage 63 to the other end for the transmission line 93 to pass through.

[0060] In this way, the transmission line 93 passing through the inside of the wire cage 63 can fit better against the inner wall forming the wire channel 6301, thereby preventing the transmission line 93 from bending too much under its own weight.

[0061] More preferably, the main body 10 further includes a plurality of limiting members 15, as specifically as follows: Figure 3 As shown, a plurality of limiting members 15 are evenly and spaced along the horizontal direction on the same side of the mounting frame 11, and the two ends of each limiting member 15 are connected to the mounting frame 11 so that a through opening 1501 is formed between each limiting member 15 and the mounting frame 11 for the transmission line 93 to pass through.

[0062] Thus, the portion of the transmission line 93 not gathered by the gathering member 60 is further limited by the limiting member 15, thereby further preventing the portion of the transmission line 93 not gathered by the gathering member 60 from interfering with the movement of the submarine cable laying equipment due to external force swing.

[0063] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A submarine cable laying apparatus, characterised in that, The submarine cable laying equipment includes: The main body of the machine includes a mounting frame and a pair of foot plates. The front end of the mounting frame is provided with a connecting part for connecting a traction rope, and the bottom of the mounting frame also forms an movable space. The two foot plates are symmetrically connected to the bottom of the mounting frame with respect to the movable space. A pressing device includes a connecting shaft, a pressing arm, and a driving unit. The connecting shaft is rotatably connected to the front end of the mounting frame and located in the movable space. The pressing arm is fixedly connected to the outer periphery of the connecting shaft, and the interior of the pressing arm has a passageway extending along the axial direction of the pressing arm and passing through the front and rear ends of the pressing arm for the submarine cable to pass through. The driving unit is hinged to the mounting frame at a position away from the connecting shaft, and the driving unit has a retractable driving end. The pressing arm is also hinged to the driving end of the driving unit. A bend-limiting assembly includes a first tube and multiple second tubes. The first tube has a first channel inside, which is configured to pass through both ends of the first tube and has an overall arc-shaped structure. The first tube is connected to the pressure arm so that one port of the first channel is aligned with one port of the passageway. Each second tube extends axially inside to form a second channel, and both ends of each second tube are penetrated by the second channel. The multiple second tubes are inclinedly arranged on multiple parallel planes so that the multiple second channels are coaxial and connected. Adjacent two second tubes are connected in a detachable manner. The end of one second tube away from other second tubes is connected to the end of the first tube away from the pressure arm so that one port of the second channel is aligned with one port of the first channel.

2. A cable laying apparatus according to claim 1, wherein, The bending limiting assembly also includes multiple annular components, each forming an annular opening. The top of the first tube is detachably connected to one of the annular components, and the top of each second tube is also detachably connected to one of the annular components. The multiple annular components are coaxially arranged relative to each other on multiple parallel planes so that the multiple annular openings are connected and combined to form a passage for the traction rope to pass through.

3. A cable laying apparatus according to claim 2, wherein, The top of each of the second tubes extends upward at least partially to form a second protrusion, and one of the second protrusions is configured to connect with one of the annular members.

4. A cable laying apparatus according to claim 3, wherein, The pressure arm also extends upward at the top to form an extension, the top of which is hinged to the drive end of the drive unit. The top wall of the pressure arm forming the passage is set to gradually curve upward from the end away from the first tube body to form a pressure part with an overall arc-shaped structure. The pressure part has an arc-shaped pressure surface that convexes towards the rear of the mounting bracket.

5. A cable laying apparatus according to claim 4, wherein, The pressure arm also has two symmetrical protruding edges on both sides of the pressure part, and the two protruding edges extend toward both sides of the passageway until they surround the passageway.

6. The submarine cable laying equipment according to claim 5, characterized in that, The submarine cable laying equipment also includes a trenching assembly, which comprises at least one flow guiding member and a flow collector. Each flow guiding member includes a flow guiding pipe, an adapter, and a suction member. The flow guiding pipe is connected to one side of the mounting frame and has an inlet and a flow channel communicating with the inlet. The connecting shaft has a flow passage inside, and one flow guiding pipe is rotatably connected to one end of the connecting shaft via an adapter, so that the flow channel communicates with the flow passage. One suction member is connected to... The flow channel of the guide tube and the suction element are configured to create a negative pressure at an inlet to guide fluid from the inlet into the flow channel. The collector is connected to the bottom of the pressure arm and has a collection cavity inside. The collector extends toward the connecting shaft to form a guide tube section, and the collector communicates the collection cavity with the flow channel through the guide tube section. The collector also has a plurality of downwardly oriented nozzles evenly arranged at its bottom to spray fluid into the collection cavity.

7. The submarine cable laying equipment according to claim 6, characterized in that, The trenching assembly further includes at least one filter unit, which is detachably connected to the inlet of one of the flow guides, and each filter unit is provided with a plurality of sieve holes of predetermined size along the direction in which the fluid is guided, so that the fluid flows through the filter unit and into the flow channel.

8. The submarine cable laying equipment according to claim 7, characterized in that, The main body of the machine also includes a pair of scrapers. The two scrapers are arranged on both sides of the pressure arm in a relatively opposite and spaced manner and are located between the two foot plates. The two scrapers are also fixedly connected to the rear ends of the two foot plates, and the bottom ends of the two scrapers are flush with the bottom ends of the two foot plates.

9. The submarine cable laying equipment according to claim 8, characterized in that, The two scrapers are configured to tilt relative to each other to form an inverted V-shape.

10. The submarine cable laying equipment according to claim 9, characterized in that, The submarine cable laying equipment also includes a coiling component, which includes a coiling body and multiple fixing rails. The coiling body is connected to the rear end of the mounting frame, and both ends of the coiling body extend radially outward to form two steps, so that the outer periphery of the coiling body forms an annular coiling space for winding the transmission line. The multiple fixing rails are evenly and spaced apart in the circumferential position of the coiling body, and each fixing rail is configured to span the coiling space so that its two ends are respectively connected to the two steps, so that the transmission line wound in the coiling space is limited.

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