Multipurpose iron plate hook installed on embedded plough
By installing multi-use iron hooks on the buried plow, the problem of difficult to quickly repair the submarine cables after they deviate from the laying position is solved, and the rapid and accurate positioning and repair of submarine cables is achieved, reducing costs and protecting the interests of fishermen.
Patent Information
- Application Number
- CN202422117346.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-29
AI Technical Summary
The prior art is difficult to quickly and accurately locate and repair submarine cables, especially after submarine cables deviate from the laying position, conventional methods are expensive and are unfavorable to the interests of fishermen.
A multi-purpose iron hook installed on the embedded plow is designed. The iron hook is bent at the end of the knife arm, which can move the sea cable vertically in the direction of the sea cable laying, and prevent the sea cable from breaking away by the bending design.
Through the design of the iron hook, the Chinese submarine cable can be quickly hooked and the traction of the laying ship can be used for salvage and repair, reducing the cost and reducing the impact on the interests of fishermen.
Smart Images
Figure CN222981129U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of burying plow equipment, and particularly to a multi-purpose iron plate hook installed on a burying plow. Background Art
[0002] After the submarine cable has been used for a long time, problems such as aging, damage caused by ocean current disturbance, and damage caused by changes in submarine sediment will occur. Therefore, after the submarine cable is damaged, it needs to be salvaged and repaired. During the laying process of the submarine cable, there are various methods. Among them, the submarine cable laid by using a burying plow will be below the seabed. Under the long-term action of ocean currents and sediment changes, the submarine cable will deviate from the laying position. Conventional methods such as diver detection and four-corner anchor dragging for searching will be difficult to accurately locate the submarine cable, which is not conducive to the rapid repair operation of the submarine cable. Usually, a grab dredger needs to be used to conduct large-area excavation to find the submarine cable, but this method is costly and sometimes damages the interests of fishermen. Summary of the Invention
[0003] The technical problem to be solved by the utility model is to provide a multi-purpose iron plate hook installed on a burying plow that can quickly salvage the submarine cable under the seabed.
[0004] The technical solution adopted by the utility model to solve the above problems is as follows: A multi-purpose iron plate hook installed on a burying plow includes a burying plow. The burying plow includes a cutter arm for burying the submarine cable. An iron plate hook is provided on the bottom surface of the end of the cutter arm. When the burying plow is laying the submarine cable, the bottom surface of the end of the cutter arm is horizontally arranged, and the iron plate hook is bent in the advancing direction of the burying plow.
[0005] Compared with the prior art, the advantages of the utility model are as follows: There is no design of an iron plate hook at the end of the cutter arm of a conventional burying plow. Therefore, it can be directly modified according to the standard of the burying plow for laying submarine cables in the early years. After adding the iron plate hook, the operating depth of the iron plate hook will be deeper than the laying depth of the submarine cable. As long as there are no drastic sediment changes, such as earthquakes and submarine collapses, during the service life of the submarine cable, the iron plate hook moves in the vertical direction along the laying direction of the submarine cable, and it can hook the submarine cable. The bending setting of the iron plate hook is used to prevent the submarine cable from detaching from the iron plate hook. After the iron plate hook hooks the submarine cable, the traction force of the laying ship on the burying plow will increase significantly. Then, the ship stops, and the submarine cable is found and salvaged and repaired along the new trench plowed by the cutter arm, thus completing the salvage and repair operation of the long-term service submarine cable.
[0006] As an improvement of the present utility model, the width of the iron plate hook decreases from the connection with the cutter arm towards the end away from the cutter arm, and the end of the iron plate hook away from the cutter arm is pointed. Through this improvement, during the process of the cutter arm plowing the seabed, high-pressure air or liquid is continuously ejected in the advancing direction of the cutter arm to achieve the purpose of the cutter arm turning and sinking into the seabed on the seabed surface and the cutter arm advancing to plow out a trench. However, there is no air jet or liquid jet port on the bottom surface of the end of the cutter arm. Therefore, the iron plate hook needs to have its own soil-breaking ability. Through the design that the end of the iron plate hook away from the cutter arm is pointed, it can ensure the soil-breaking ability of the iron plate hook under the overall gravity of the cutter arm, and also ensure the effectiveness of soil-breaking in hard soil. The design that the width of the iron plate hook decreases from the connection with the cutter arm towards the end away from the cutter arm can ensure the stability of the iron plate hook during the soil-breaking process and avoid lateral bending deformation of the iron plate hook during the soil-breaking process.
[0007] As an improvement of the present utility model, one side of the iron plate hook in the advancing direction is arc-shaped. Through this improvement, firstly, because the main purpose of the iron plate hook is to hook the submarine cable under the seabed and cannot damage the submarine cable, the contact area between the iron plate hook and the submarine cable needs to be a plane or an arc surface. However, after the submarine cable moves, it is difficult to ensure that the iron plate hook will move in a direction completely perpendicular to the laying direction of the submarine cable. Therefore, using an arc surface is less likely to damage the submarine cable; at the same time, when the iron plate hook sinks into the seabed and moves in the trench, continuous soil-breaking is still required. If one side of the iron plate hook in the advancing direction is a plane structure, the soil-breaking ability will be weaker than that of an arc-shaped structure.
[0008] As an improvement of the present utility model, there are two groups of iron plate hooks in total, and the two groups of iron plate hooks are respectively arranged on both sides of the cutter arm. Through this improvement, when the iron plate hook hooks the submarine cable, the increase in the traction force of the laying ship requires a feedback time. During this process, the iron plate hook will bend the submarine cable. Through the design of two groups of iron plate hooks, the bending angle can be reduced to avoid exacerbating the damage to the submarine cable; at the same time, if a cutter arm with two groups of iron plate hooks is used, the burial depth of the new submarine cable can be increased when laying a new submarine cable. For the design of one group of iron plate hooks, if you want to increase the burial depth of the submarine cable, there are certain requirements for the width of the iron plate hook to ensure that the trench plowed by the iron plate hook can accommodate the sinking of the submarine cable. And after increasing the burial depth, if you want to find the buried submarine cable next time, you need to increase the digging depth of the cutter arm and the digging depth of the iron plate hook. However, the design of two groups of iron plate hooks digs on both sides of the laying area of the submarine cable, and there is no need to ensure the digging width. The requirement for the digging width is low. When the submarine cable is laid in the area with ditches on both sides, the submarine cable will sink by itself and squeeze the sediment under the submarine cable into the ditches dug out by the iron plate hooks on both sides, thereby increasing the burial depth of the submarine cable, and the burial depth is still less than the digging depth of the iron plate hook. When using the iron plate hook to find the submarine cable next time, a laying plow for burial can be used to find it, and there is no need to increase the digging depth of the cutter arm and the digging depth of the iron plate hook.
[0009] As an improvement of the utility model, two groups of the iron plate hooks are welded on the cutter arm, a connecting plate is connected between the two groups of the iron plate hooks, and the upper end of the connecting plate is also welded on the cutter arm. Through the above improvement, the relative displacement between the iron plate hook and the cutter arm is not likely to occur due to the welding fixation, so as to ensure the stability and firmness of the iron plate hook fixed on the cutter arm. The design of the connecting plate can not only ensure the position stability between the two groups of iron plate hooks, but also further strengthen the firmness of the connection between the iron plate hook and the cutter arm by being welded on the cutter arm, effectively reducing the damage probability of the iron plate hook during the operation under the seabed.
[0010] As an improvement of the utility model, the cutter arm and the iron plate hook are further connected and strengthened by pin fasteners, and the upper end of the connecting plate and the cutter arm are also connected and strengthened by pin fasteners. Through the above improvement, when the iron plate hook and the connecting plate are operating under the seabed, as the iron plate hook and the connecting plate move forward, the seabed will exert a reaction force on the iron plate hook and the connecting plate, and form a torque with the welding joints between the iron plate hook and the cutter arm and between the connecting plate and the cutter arm as the acting force fulcrums. The fixation of the threaded fasteners and the pin fasteners can further strengthen the connection strength between the iron plate hook, the connecting plate and the cutter arm, preventing deformation during the operation, especially in the operation environment of hard soil.
[0011] As an improvement of the utility model, the lower end of the connecting plate is arc-shaped. Through the above improvement, an arc-shaped groove can be dug out under the seabed by the connecting plate, so that when the submarine cable is laid on the arc-shaped groove, it can make a slight adjustment and movement along the inner wall of the arc-shaped groove to the bottom of the arc-shaped groove. This can not only make the submarine cable more tend to be laid on the center line of the trench dug out by the cutter arm, but also make the extrusion of sediment into the trenches dug out by the iron plate hooks on both sides more even.
[0012] As an improvement of the utility model, a plurality of mud discharge holes are arranged along the edge at the lower end of the connecting plate. Through the above improvement, during the trench digging process of the cutter arm, the main sediment will be discharged to both sides of the trench under the digging operation of the cutter arm. During the discharge process of the sediment on the connecting plate, the distance is the longest, resulting in more sediment being likely to accumulate at the connecting plate. Therefore, during the forward movement of the cutter arm, the reaction force of the sediment at the connecting plate on the connecting plate is greater, and the connecting plate is prone to damage. Therefore, the mud discharge holes are designed to allow part of the sediment to pass through the mud discharge holes to reduce the reaction force of the sediment at the connecting plate on the connecting plate, ensuring the use stability and long-term performance of the connecting plate.
[0013] As an improvement of the utility model, the iron plate hook includes a front hook and a rear hook. The front hook is arranged in front of the advancing direction of the rear hook, and the size of the front hook is smaller than that of the rear hook. Through this improvement, the design of the two iron plate hooks in the advancing direction can increase the probability of the iron plate hook hooking the submarine cable. At the same time, by first carrying out the operation of excavating the trench with the small-sized front hook and then carrying out the operation of excavating the trench with the large-sized rear hook, the excavation difficulty of the rear hook can be reduced.
[0014] As an improvement of the utility model, a connecting side plate is arranged between the front hook and the rear hook, and mud discharge holes are also arranged on the connecting side plate. Through this improvement, the design of the connecting side plate can increase the connection strength between the front hook and the rear hook, and the design of the mud discharge holes can discharge the sediment under the cutter arm from the direction of the connecting side plate, reducing the advancing resistance of the cutter arm. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall application structure of the utility model.
[0016] Figure 2 is a schematic diagram of the connection structure between the cutter arm and the iron plate hook of the utility model.
[0017] Figure 3 is a schematic diagram of the connection structure between the front hook and the rear hook of the utility model.
[0018] As shown in the figure: 1, burying plow; 2, cutter arm; 3, iron plate hook; 3.1, front hook; 3.2, rear hook; 4, connecting plate; 5, pin fastener; 6, connecting side plate; 7, mud discharge hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The embodiments of the utility model will be further described below with reference to the drawings.
[0020] As Figure 1 shown, a multi-purpose iron plate hook installed on a burying plow includes a burying plow 1. The burying plow 1 includes a cutter arm 2 for burying a submarine cable. The burying plow 1 is towed by a laying ship and moves on the seabed. The bottom surface of the end of the cutter arm 2 is provided with an iron plate hook 3. When the burying plow 1 lays the submarine cable, the bottom surface of the end of the cutter arm 2 is horizontally arranged. The iron plate hook 3 is bent in the advancing direction of the burying plow 1. The width of the iron plate hook 3 decreases from the connection with the cutter arm 2 to the end away from the cutter arm 2. The end of the iron plate hook 3 away from the cutter arm 2 is pointed. One side of the iron plate hook 3 in the advancing direction is arc-shaped.
[0021] As Figure 2As shown, there are two groups of iron plate hooks 3, which are respectively arranged on both sides of the cutter arm 2. The two groups of iron plate hooks 3 are welded to the cutter arm 2. A connecting plate 4 is connected between the two groups of iron plate hooks 3, and the upper end of the connecting plate 4 is also welded to the cutter arm 2. The cutter arm 2 and the iron plate hook 3 are also strengthened and connected by a pin fastener 5. The upper end of the connecting plate 4 and the cutter arm 2 are also strengthened and connected by a pin fastener 5. The pin fastener 5 includes two limit moving rings, a plugging ring and a plug rod. A limiting rod is arranged on one side of the plug rod, and the plug rod is connected between the two limit moving rings by limiting movement through the limiting rod. When performing plugging and strengthening connection, the plug rod is inserted into the plugging ring and rotated for fixation.
[0022] The lower end of the connecting plate 4 is arc-shaped, and a plurality of mud discharge holes 4.1 are arranged along the edge of the lower end of the connecting plate 4.
[0023] As Figure 1 、 Figure 3 As shown, the iron plate hook 3 includes a front hook 3.1 and a rear hook 3.2. The front hook 3.1 is arranged in front of the advancing direction of the rear hook 3.2, and the size of the front hook 3.1 is smaller than that of the rear hook 3.2. A connecting side plate 6 is arranged between the front hook 3.1 and the rear hook 3.2, and mud discharge holes 7 are also arranged on the connecting side plate 6.
[0024] As Figure 2 As shown, the connecting plate 4 is connected between the two rear hooks 3.2.
[0025] The iron plate hook 3 is formed by welding multiple iron plates. On the premise of ensuring the working strength of the iron plate hook 3, the quality of the iron plate hook 3 can be reduced, thereby reducing the production cost and the weight of the burying plow 1, and facilitating the towing of the laying ship.
[0026] Through the design of the multi-purpose iron plate hook 3 installed on the burying plow 1, not only can the iron plate hook 3 be used to search for the submarine cable buried under the seabed, but also the burying depth of the submarine cable can be increased. When searching for the submarine cable buried under the seabed, it is necessary to search in the vertical direction as perpendicular as possible to the laying direction of the submarine cable, so that the iron plate hook 3 can smoothly hook the submarine cable and give an effective hooking feedback. For the design of increasing the burying depth of the submarine cable, an indirect deepening method is adopted. First, the two-sided iron plate hooks 3 are used to dig on both sides of the laying area, and then the self-weight of the submarine cable is used to squeeze the sediment under the submarine cable to both sides, so as to achieve the purpose of increasing the sinking depth of the submarine cable. The increased depth is not only related to the digging depth of the iron plate hook 3, but also related to the digging width of the iron plate hook 3. Through effective control, the increased depth of the submarine cable burial can be made less than the digging depth of the iron plate hook 3, so that the same type of burying plow 1 can be directly used to search for the submarine cable next time.
[0027] The above description is only for the best embodiment of the present utility model, but it should not be construed as a limitation to the claims. The present utility model is not limited to the above embodiments, and its specific structure is allowed to vary. All changes made within the protection scope of the independent claims of the present utility model are within the protection scope of the present utility model.
Claims
1. A multi-purpose iron plate hook installed on an burying plow, characterized in that: The burying plough (1) comprises a knife arm (2) for burying a submarine cable, and an iron plate hook (3) is arranged on the bottom surface of the end of the knife arm (2). When the burying plough (1) is used to lay the submarine cable, the bottom surface of the end of the knife arm (2) is arranged horizontally, and the iron plate hook (3) is arranged to be bent in the forward direction of the burying plough (1).
2. A multi-purpose iron plate hook installed on a buried plow according to claim 1, characterized in that: The width of the iron plate hook (3) decreases from the connection with the knife arm (2) to the end away from the knife arm (2), and the end of the iron plate hook (3) away from the knife arm (2) is pointed.
3. The multi-purpose iron plate hook installed on the buried plow according to claim 1, characterized in that: One side of the iron plate hook (3) in the advancing direction is in an arc shape.
4. The multi-purpose iron plate hook installed on the buried plow according to claim 1, characterized in that: The iron plate hooks (3) are provided in two groups, and the two groups of iron plate hooks (3) are respectively arranged on both sides of the knife arm (2).
5. A multi-purpose iron plate hook installed on a buried plow according to claim 4, characterized in that: The two groups of iron plate hooks (3) are welded to the knife arm (2), a connecting plate (4) is connected between the two groups of iron plate hooks (3), and the upper end of the connecting plate (4) is also welded to the knife arm (2).
6. A multi-purpose iron plate hook installed on an burying plow according to claim 5, characterized in that: The knife arm (2) and the iron plate hook (3) are further connected to each other by a latch fastener (5), and the upper end of the connecting plate (4) and the knife arm (2) are also connected to each other by a latch fastener (5).
7. A multi-purpose iron plate hook installed on an emplacement plow according to claim 5, characterized in that: The lower end of the connecting plate (4) is arc-shaped.
8. A multi-purpose iron plate hook installed on an emplacement plow according to claim 7, characterized in that: The lower end of the connecting plate (4) is provided with a plurality of mud discharge holes (7) along the edge.
9. A multi-purpose iron plate hook installed on an burying plow according to claim 4, characterized in that: The iron plate hook (3) comprises a front hook (3.1) and a rear hook (3.2); the front hook (3.1) is arranged in front of the rear hook (3.2) in the forward direction, and the size of the front hook (3.1) is smaller than that of the rear hook (3.2).
10. A multi-purpose iron plate hook installed on a buried plow according to claim 9, characterized in that: A connecting side plate (6) is provided between the front hook (3.1) and the rear hook (3.2), and a mud discharge hole (7) is also provided on the connecting side plate (6).