A marine seabed sunken rock cleaning device and its use method

Abstract

The present invention provides a marine bottom rock cleaning device and a method for using the same, and relates to the field of bottom rock cleaning devices. The bottom rock cleaning device comprises a main structure connected to a hull, a plurality of fixings are arranged on the main structure, one end of each fixing is rotatably connected to a rake head, a spring rod is installed between the top of the rake head and the fixing, the rake head rotates with one end of the fixing as a fulcrum, and when the end of the rake head contacts the surface of the rock, the rock is flipped upward; when the rake head is subjected to resistance from the bottom rock, the rake head rotates with one end of the fixing as a fulcrum, and drives the rock to flip upward, making it easier to bring out the rock, preventing the bottom rock from being pushed underground, and when the first row of rake heads fail to shovel out the rock, the rake head has a constant rotation trajectory, thereby effectively bringing out the rock, avoiding the situation where the rock cannot be effectively brought out upward due to the instability of the rotation fulcrum and the rock is pushed deeper into the seabed.

Description

Technical Field

[0001] The invention relates to the field of seabed sunken rock cleaning devices, in particular to a ship-based seabed sunken rock cleaning device and a use method thereof. Background Art

[0002] The seabed rock cleaning device is a tool used for seabed operations. It needs to be driven by the hull for cleaning. The cleaning device is usually composed of a rake head, rake teeth, a rake rod and connecting parts. The rake teeth are designed into different shapes and sizes according to different uses. Some are sharp and suitable for digging hard rocks; some are relatively flat and wide, used to level the seabed or clean up loose rocks. The connecting part can be a long handle or a mechanical connecting device for user convenience. It is usually powered by the ship's power system and transmitted to the seabed rock rake through a cable or hydraulic pipe connection. The power can make the rake head of the rock rake move, such as rotation, vibration or reciprocating motion. It is mainly used to dig and rake mud, rocks and other materials on the seabed.

[0003] When the seabed rock cleaning device in the prior art is working, since the movement of the rock raking device is powered by a connecting device such as a cable or a hydraulic pipe, when the rock raking device is operating, it is affected by the structure, angle, and force factors of the rake teeth. When it contacts deeply buried stones, the stones are not directly dug out and cleaned, but the stones are pushed into the ground under the action of force. This makes it impossible for the seabed rock cleaning device to fully play the role of cleaning stones in actual applications, reduces its work efficiency and effect, and affects the quality and progress of seabed operations. For example, in marine engineering, the stones around seabed pipelines and cable facilities may not be effectively cleaned, increasing the risk of damage to the facilities. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a ship-based seabed sunken rock cleaning device. The rotating design of the rake head and the constancy of its fulcrum cause the sunken rocks to flip over during the process of shoveling out the sunken rocks. The mutual cooperation between the two rows of rake heads effectively shovels out the seabed sunken rocks and prevents the rocks from being pushed underground on the seabed.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a ship-based seabed sunken rock cleaning device, including a main structure connected to the hull, a plurality of fixings are provided on the main structure, one end of each fixing is rotatably connected to a rake head, a spring rod is installed between the top of the rake head and the fixing, the rake head rotates with one end of the fixing as a fulcrum, and when the end of the rake head contacts the surface of the sunken rock, the sunken rock is flipped upward.

[0006] A collecting bucket for collecting sunken stones is rotatably installed at the bottom of the main structure. An adjusting mechanism for controlling its overturning is installed at the collecting bucket. The adjusting mechanism includes a fixing plate and an air bag. The air bag is used to control the overturning of the fixing plate when it is compressed.

[0007] Preferably, two groups of rake heads are provided, and the two groups of rake heads are arranged in a staggered distribution. When the first row of rake heads turns over the sinking stones, the distance between the end of the second row of rake heads and the bottom of the sinking stones is shortened.

[0008] Preferably, three groups of support rakes for walking along the seabed are provided on the main structure.

[0009] Preferably, the collecting bucket comprises a plurality of iron plates, a plurality of fan-shaped plates fixed to the iron plates, and a plurality of stone-shoveling bars fixed to the iron plates.

[0010] Preferably, the three groups of supporting rakes are staggered, the middle part of the supporting rakes is arc-shaped, and the two ends are arranged in parallel.

[0011] Preferably, the rake head includes a rake member, rake teeth and an arc-shaped head, the rake member is fixed to the rake teeth by screws and nuts, the rake teeth and the arc-shaped head are fixed by nuts, the arc-shaped head and the rake teeth are both used to be inserted into the seabed, and the arc-shaped head is used to contact the sunken stones.

[0012] Preferably, one end of the collecting bucket and the upper surface of the main structure are both provided with lifting ears, and the lifting ears on the main structure are fixed to the collecting bucket through a traction rope.

[0013] Preferably, the height of the bottom end of the supporting rake is greater than the height of the bottom end of the rake head.

[0014] Preferably, the adjusting mechanism also includes a fixed block, a fixed pipe, an air cylinder, a piston and a safety valve. The fixed plate is located at one end of the fan-shaped plate, and a slide groove and a limit groove matching the fixed block are opened inside the fixed plate. The slide groove and the limit groove are communicated with each other. The fixed plate is used to move along the fixed block. A rotating hydraulic cylinder is fixedly installed inside each fixed plate, and arc plates are fixedly installed at the output ends of the two rotating hydraulic cylinders. A hydraulic expansion head is fixedly installed inside the fixed plate, one end of the hydraulic expansion head is located in the limit groove, and the other end is communicated with the hydraulic pipe of the rotating hydraulic cylinder. The air bag is fixedly installed at the bottom of the collecting bucket, and the exhaust end of the air bag is communicated with the fixed pipe, the air cylinder is fixed to the bottom of the fixed plate, the fixed pipe is slidably connected to the air cylinder, the piston is slidably connected to the air cylinder, the air cylinder is used to move along the piston, the safety valve is installed at the outer surface of the fixed pipe, the bottom end of the fixed pipe is fixed to the main structure, the fixed pipe includes a hard pipe, and the rest is a hose, and the outer surface of the hard pipe is fixedly connected with a connecting plate, and one end of the connecting plate is rotatably connected to the fixed block.

[0015] A method for using a marine seabed debris cleaning device comprises the following steps:

[0016] S1: The main structure is connected to the hull through a towing rope. The hull moves on the sea surface and pulls the main structure through the towing rope to make the whole body move along the riverbed.

[0017] S2: The rake heads drive the sinker to flip upwards. The first row of rake heads shovels the sinker a certain distance upwards, and the second row of rake heads shovels the sinker completely out.

[0018] S3: The end of the stone shovel bar is inserted into the seabed, and the sunken stones are collected into the collection bucket during the movement.

[0019] S4: When there are a lot of sinking stones collected at the bottom of the collecting bucket, the collecting bucket flips over, and the sinking stones slide to the other side of the collecting bucket. Then the end of the shovel bar continues to be inserted into the seabed to collect the sinking stones.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the main structure of the seabed sunken rock cleaning device is connected to the hull by a towing rope, the hull moves on the sea surface and pulls the main structure by the towing rope to make the whole move along the riverbed, when the rake head is subjected to the resistance of the seabed sunken rock, it will rotate with one end as the fulcrum and drive the sunken rock to flip upward, so that the sunken rock is easier to be brought out and the seabed sunken rock is prevented from being pushed into the ground, when the first row of rake heads fails to shovel out the sunken rock, due to the change in the position between the rake heads and the sunken rock, the distance between the end of the second row of rake heads and the bottom of the sunken rock is shortened, making it easier for the second row of rake heads to shovel out the sunken rock, and the fulcrum position of the rake heads when they rotate is always fixed, so that the rake heads have a constant rotation trajectory, thereby effectively bringing out the sunken rock, avoiding the situation where the sunken rock cannot be effectively brought out upward due to the instability of the rotation fulcrum and the sunken rock is deeper into the seabed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a top view of the overall structure of the present invention;

[0023] Figure 3 It is a front view of the overall structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the rake head, bracket and supporting rake of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the rake head of the present invention after shoveling out stones;

[0026] Figure 6 It is a schematic diagram of the structure of the collecting bucket and the air bag of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the fixed pipe, the air cylinder and the fixed plate of the present invention;

[0028] Figure 8 A cross-sectional view showing a schematic structural diagram of a fixed plate, a rotary hydraulic cylinder and an arc-shaped sheet according to the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of the rotary hydraulic cylinder of the present invention;

[0030] Fig.10 It is a structural schematic diagram of the present invention when the air pressure of the fixed pipe increases and the fixed block is initially located in the limiting groove;

[0031] Fig.11 is a cross-sectional view of a top view of a fixing plate of the present invention;

[0032] Fig.12 This is a schematic diagram of the structure of the collecting bucket and the fixing plate when they are reset;

[0033] Fig.13 It is a schematic diagram of the structure of the fixed block of the present invention being initially located in the limiting groove and the collecting bucket at this time;

[0034] Fig.14 This is a schematic diagram of the structure of the present invention after the fixed plate is offset and the collecting bucket is driven to rotate by force;

[0035] Fig.15 This is a schematic diagram of the structure of the fixing plate of the present invention maintaining a horizontal state and the collecting bucket;

[0036] Fig.16 It is a schematic diagram of the structure of the present invention after the fixed plate rotates and the collecting bucket is driven to rotate by the force;

[0037] Fig.17 This is a schematic diagram of the structure after the collecting bucket and the fixing plate of the present invention are installed;

[0038] Fig.18 It is a schematic diagram of the structure when the hull of the present invention pulls the main structure through the towing rope.

[0039] Among them: 1. Main structure; 2. Fixing parts; 3. Rake head; 301. Rake parts; 302. Rake teeth; 303. Arc head; 4. Spring rod; 5. Support rake; 6. Collecting bucket; 601. Iron plate; 602. Fan-shaped plate; 603. Stone shoveling bar; 7. Fixing block; 8. Fixing plate; 9. Slide; 10. Limiting groove; 11. Air bag; 12. Fixing pipe; 13. Air cylinder; 14. Piston; 15. Arc sheet; 16. Rotating hydraulic cylinder; 17. Safety valve; 18. Lifting ear; 1201. Hard pipe; 1202. Connecting plate. DETAILED DESCRIPTION Embodiment 1

[0040] like Figure 1-Figure 5As shown, a ship-mounted seabed rock cleaning device comprises a main structure 1 connected to a hull, and the main structure 1 is provided with three groups of support rakes 5 for walking along the seabed. The main structure 1 is connected to the hull through a towing rope, and the hull moves on the sea surface and pulls the main structure 1 through the towing rope to make the whole move along the riverbed. A plurality of fixing members 2 are provided on the main structure 1, and one end of each fixing member 2 is rotatably connected to a rake head 3. Two groups of rake heads 3 are arranged, and the two groups of rake heads 3 are arranged in a staggered distribution. When the first row of rake heads 3 turns over the rock, the distance between the end of the second row of rake heads 3 and the bottom of the rock is shortened. The three groups of support rakes 5 are staggered, and the support rakes 5 are staggered. The middle part of the support rake 5 is arc-shaped, and the two ends are arranged in parallel. The rake head 3 includes a rake member 301, rake teeth 302 and an arc head 303. The rake member 301 is fixed to the rake teeth 302 by screw nuts, and the rake teeth 302 and the arc head 303 are fixed by nuts. The arc head 303 and the rake teeth 302 are both used to insert into the seabed, and the arc head 303 is used to contact the sunken stone. The height of the bottom end of the support rake 5 is greater than the height of the bottom end of the rake head 3. A spring rod 4 is installed between the top of the rake head 3 and the fixing member 2. The two ends of the spring rod 4 are respectively connected to the rake member 301 and the fixing member 2 for rotation. The main structure 1 drives the rake head 3 to translate and reach the sunken stone on the seabed. After the removal, the rake head 3 rotates with one end of the fixing member 2 as a fulcrum. When the end of the rake head 3 contacts the surface of the sunken stone, the sunken stone is turned upward. The surface of the sunken stone and the end of the rake head 3, that is, the side of the stone facing the rake head 3, does not exceed the height of the connection line between the top and the bottom of the sunken stone. The existing fixed rake head 3 is difficult to turn the sunken stone over and pushes the stone flat, making it difficult to turn the stone out. As the stone turns upward, it is easy to turn the stone out, which is used to realize the raking operation of the sunken stone on the seabed, thereby helping the left rake head 3 to bring out the sunken stone on the seabed, preventing the sunken stone on the seabed from being pushed into the ground, and improving the cleaning of the sunken stone on the seabed by the rake device. The efficiency and effect are improved, and the working efficiency and cleaning effect of the stone raking device are improved. A collecting bucket 6 for collecting sunken stones is installed at the bottom of the main structure 1. The collecting bucket 6 includes a plurality of iron plates 601, a plurality of fan-shaped plates 602 fixed to the iron plates 601, and a plurality of stone shoveling bars 603 fixed to the iron plates 601. The bottom ends of the stone shoveling bars 603 are set as sharp structures and are used to be inserted into the seabed. A lifting lug 18 is installed at one end of the collecting bucket 6 and the upper surface of the main structure 1, and is fixed to the lifting lug 18 on the collecting bucket 6 by passing a traction rope through the lifting lug 18 on the main structure 1, so as to pull the whole to move, and turn the collecting bucket 6 over and insert it into the seabed.

[0041] A method for using a marine seabed debris cleaning device comprises the following steps:

[0042] S1: The main structure 1 is connected to the hull through a towing rope. The hull moves on the sea surface and pulls the main structure 1 through the towing rope to make the whole body move along the riverbed.

[0043] S2: The rake heads 3 drive the sinking stones to turn upwards, the rake heads 3 in the first row shovel the sinking stones upwards for a certain distance, and the rake heads 3 in the second row shovel the sinking stones completely out.

[0044] S3: The end of the stone-shoveling bar 603 is inserted into the seabed, and the sunken stones are collected into the collecting bucket 6 during the movement.

[0045] S4: When there are a lot of sunken rocks collected at the bottom of the collecting bucket 6, the collecting bucket 6 is turned over, and the sunken rocks slide to the other side of the collecting bucket 6 after turning over, and then the end of the stone shoveling bar 603 continues to be inserted into the seabed to collect the sunken rocks.

[0046] When in use, first place the main structure 1 above the seabed, connect the main structure 1 to the hull through a towing rope, the hull moves on the sea surface and pulls the main structure 1 through the towing rope to make the whole move along the riverbed, and pulls the main structure 1 forward through the hull and the towing rope, and multiple support rakes 5 move along the seabed surface, which on the one hand supports the main structure 1, and on the other hand enables the main structure 1 to move forward stably. Since the middle part of the support rake 5 is arc-shaped and the two ends are arranged in parallel, it not only increases the contact area between the support rake 5 and the seabed, reduces the pressure, and thus prevents the support rake 5 from penetrating into the seabed under the action of the overall gravity, but also enables the support rake 5 to move stably on the seabed. Due to the arc-shaped setting in the middle, the resistance of seawater to the support rake 5 is reduced, which is conducive to easy movement of the support. At this time, the ends of the rake head 3 and the stone shovel bar 603 need to be inserted into the seabed.

[0047] Next, during the process of the main structure 1 moving forward, when the arc head 303 at the end of the drag head 3 contacts the bottom of the sea, the arc head 303 is subjected to the resistance of the bottom of the sea and rotates with one end of the fixing member 2 as the fulcrum. It should be noted that when the drag head 3 rotates, the rotation fulcrum position of the drag head 3 remains unchanged relative to the fixing member 2, so that the drag head 3 has a constant rotation trajectory. Since a spring rod 4 is installed between the top of the drag head 3 and the fixing member 2, and since the two ends of the spring rod 4 are respectively connected to the drag member 301 and the fixing member 2 Rotating connection, when the end of the rake head 3 rotates upward, its bottom end moves in an arc trajectory during the forward process. Under the elastic force of the spring rod 4, its bottom end always keeps in contact with the sinking stone during the stone turning process, so that the arc-shaped piece 15 drives the sinking stone to turn upward, thereby effectively bringing out the sinking stone, avoiding the situation where the sinking stone cannot be effectively brought out upward due to the instability of the rotating fulcrum and the sinking stone is made to go deeper into the seabed. Both rows of rake heads 3 can effectively bring out the sinking stone. It should be noted that the stone is in contact with the side facing the rake head 3, such as Figure 4As shown, when the first row of rake heads 3 fails to shovel out the sunken stones, the rake heads 3 have driven the sunken stones to flip over, thereby shortening the distance from the second row of rake heads 3 to the bottom of the sunken stones, causing the contact position of the rake heads 3 with the sunken stones to change, and the contact position of the rake heads 3 with the sunken stones is closer to the bottom of the sunken stones, thereby enabling the second row of rake heads 3 to effectively flip the sunken stones upwards, so as to achieve the purpose of shoveling out the sunken stones. It should be noted that since the two rows of rake heads 3 are staggered and the sunken stones have irregular shapes and uneven force, they will inevitably move to both sides of the rake heads 3 when flipping under the push of the rake heads 3, so that the second row of rake heads 3 will contact the sunken stones and shovel out the sunken stones. During the movement, the collecting bucket 6 shovels the sunken stones into the interior of the collecting bucket 6 to achieve the collection work. It should be noted that when the collecting bucket 6 is not subject to force, the collecting bucket 6 is in an inclined state (such as Fig.15 When in use, the collecting bucket 6 is flipped by pulling the collecting bucket 6 through the towing rope, so that the end of the stone shoveling bar 603 is inserted into the seabed. When a large amount of sunken stones are collected, the towing rope is required to cancel the pulling force on the collecting bucket 6 to reset the collecting bucket 6. At this time, the sunken stones slide to the other side of the collecting bucket 6, increasing the space at one end of the collecting bucket 6, making it easier for the collecting bucket 6 to collect more sunken stones. Then, when the main structure 1 is connected to the hull through the towing rope, the hull moves on the sea surface and the towing rope pulls the main structure 1 and moves the whole along the riverbed. During this process, the towing rope pulls the collecting bucket 6 to flip, and the end of the stone shoveling bar 603 continues to be inserted into the seabed to collect sunken stones. Embodiment 2

[0048] like Figure 6-Figure 18 As shown, when the collecting bucket 6 in this embodiment is not subjected to external force, the collecting bucket 6 is tilted as shown in FIG. Figure 3As shown, the end of the stone-shoveling bar 603 on the collecting bucket 6 is inserted into the seabed, and the collecting bucket 6 is hingedly installed with the main structure 1 through two mounting parts. The collecting bucket 6 is used for small rotation, and the two outermost fan-shaped plates 602 of the collecting bucket 6 are fixedly installed with a fixed block 7 on the side away from each other, and the two fan-shaped plates 602 are movably installed with a fixed plate 8 on the side away from each other. The fixed plate 8 is located at one end of the fan-shaped plate 602, and a slide groove 9 and a limit groove 10 matching the fixed block 7 are provided inside the fixed plate 8. The slide groove 9 and the limit groove 10 are connected to each other. The fixed plate 8 is used to move along the fixed block 7, and a rotating hydraulic cylinder 16 is fixedly installed inside each fixed plate 8. The output ends of the two rotating hydraulic cylinders 16 are fixedly installed with arc-shaped pieces 15 for rotation, and a hydraulic telescopic head is fixedly installed inside the fixed plate 8. One end of the hydraulic expansion head is located in the limit groove 10, and the other end is connected to the hydraulic pipe of the rotating hydraulic cylinder 16. When the fixed block 7 squeezes the hydraulic expansion head, the rotating hydraulic cylinder 16 controls the arc piece 15 to rotate. An air bag 11 is fixedly installed inside the collecting bucket 6. The exhaust end of the air bag 11 is connected to a fixed pipe 12 fixed to the main structure 1. An air cylinder 13 with one end sealed is fixedly connected to the bottom of the fixed plate 8. The fixed pipe 12 is slidably connected to the air cylinder 13. A piston 14 is fixedly connected to one end of the fixed pipe 12. The piston 14 is slidably connected to the air cylinder 13. The air cylinder 13 is used to move along the piston 14. A safety valve 17 is installed on the outer surface of the fixed pipe 12. The fixed pipe 12 includes a hard pipe 1201, and the rest is a hose. A connecting plate 1202 is fixedly connected to the outer surface of the hard pipe 1201, and one end of the connecting plate 1202 is rotatably connected to the fixed block 7.

[0049] Since more sinking stones will be collected at the bottom of the collecting bucket 6, and these sinking stones will gather at the bottom of the collecting bucket 6, it will be difficult for the collecting bucket 6 to collect more sinking stones. Therefore, when the collecting bucket 6 collects more sinking stones, the air bag 11 is compressed by the pressure of the sinking stones, and the safety valve 17 opens, so that the gas in the air bag 11 enters the air cylinder 13 through the fixed pipe 12. Since the hard pipe 1201 is fixed to the connecting plate 1202, one end of the connecting plate 1202 is rotatably connected to the fixing block 7, the fixing pipe 12 is fixed relative to the fixing block 7, so that the air cylinder 13 moves and drives the fixing plate 8 to move. Fig.12 and Fig.13 As shown, when the limiting groove 10 inside the fixing plate 8 moves to the position of the fixing block 7, the fulcrum of the fixing plate 8 changes, as shown in FIG. Fig.14 As shown, one end of the fixing plate 8 is tilted downward, so that the contact area between the fixing plate 8 and the seawater flow increases during the forward movement, thereby increasing the resistance of the seawater to the fixing plate 8, and the seawater exerts a thrust on the fixing plate 8, as shown in FIG. Fig.17 As shown, since the fixing plate 8 is located at one end of the fan-shaped plate 602, the fixing plate 8 can more easily drive the collecting bucket 6 to flip by utilizing the lever principle, as shown in FIG. Fig.15As shown, after flipping, the fixed plate 8 tends to be parallel to the seabed, the contact area between the fixed plate 8 and the water flow is small, the resistance of the seawater is low, and the sinking stones at the bottom of the collecting bucket 6 will slide to the other side of the collecting bucket 6 after flipping, increasing the use space of the collecting bucket 6 and facilitating the collection of more sinking stones. It should be noted that when the limiting groove 10 inside the fixed plate 8 moves to the position of the fixed block 7 and rotates, the fixed block 7 will squeeze the hydraulic telescopic head, so that the hydraulic pressure inside the rotating hydraulic cylinder 16 increases. The movable plug in the rotating hydraulic cylinder 16 is a key component. The movable plug converts hydraulic energy into mechanical energy to achieve rotational motion. Fig.14 As shown, the rotary hydraulic cylinder 16 drives the arc-shaped piece 15 to rotate 180 degrees, as shown in FIG. Fig.15 As shown in FIG. 1 , one end of the arc-shaped piece 15 after rotation faces upward. During the movement, the seawater flows more easily along the bottom of the arc-shaped piece 15, so that the seawater exerts an upward thrust on the arc-shaped piece 15. Fig.16 As shown, under the thrust of seawater on the arc-shaped piece 15, the arc-shaped piece 15 drives the fixed plate 8 to rotate upward, and then the fixed plate 8 starts to slide downward along the fixed block 7. At this time, the fixed block 7 is out of contact with the hydraulic telescopic head of the rotating hydraulic cylinder 16. It should be noted that the buffer device in the rotating hydraulic cylinder 16 is used to reduce the impact and vibration of the movable plug during the movement. The buffer device is usually composed of a buffer plunger, a buffer spring and other components. Its working principle is that when the movable plug approaches the end of the stroke, the throttling effect between the buffer plunger and the cylinder head is used to gradually reduce the flow rate of the hydraulic oil, thereby achieving a buffering effect. When the hydraulic telescopic head is not squeezed by the fixed block 7, the buffer spring eventually resets the movable plug, and then resets the hydraulic telescopic head. Fig.16 and Fig.12 As shown, when the fixed plate 8 tilts upward, not only the rotating hydraulic cylinder 16 drives the arc-shaped piece 15 to rotate to the original position, but also cooperates with the fixed plate 8 to increase the water flow contact area with the seawater again, so that the seawater exerts an upward thrust on the fixed plate 8, and the cooperation of the fixed plate 8 and the fixed block 7 drives the collection bucket 6 to reset, and when the collection bucket 6 is reset, it drives the fixed plate 8 to reset again, thereby achieving the following effect. Fig.17 state, and each time when more sinker stones are collected at the bottom of the collecting bucket 6, the collecting bucket 6 needs to be flipped to turn the sinker stones to the other side, so that the collecting bucket 6 can collect more sinker stones. It should be noted that the rotation of the arc-shaped piece 15 controls the rotation direction of the fixed plate 8 through the thrust of seawater. When the fixed plate 8 slides down along the fixed block 7, the safety valve 17 needs to be opened to increase the air pressure in the airbag 11 to reset the airbag 11.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ship-mounted seabed debris cleaning device, comprising a main structure (1) connected to a ship hull, characterized in that: A plurality of fixing members (2) are provided on the main structure (1), one end of each fixing member (2) is rotatably connected to a rake head (3), a spring rod (4) is installed between the top end of the rake head (3) and the fixing member (2), the rake head (3) rotates with one end of the fixing member (2) as a fulcrum, and when the end of the rake head (3) contacts the surface of the sinker, the sinker is turned upward; A collecting bucket (6) for collecting sunken stones is rotatably mounted at the bottom of the main structure (1). An adjusting mechanism for controlling the turning of the collecting bucket (6) is mounted thereon. The adjusting mechanism comprises a fixing plate (8) and an air bag (11). When the air bag (11) is compressed, it is used to control the turning of the fixing plate (8). The collecting bucket (6) comprises a plurality of iron plates (601), a plurality of fan-shaped plates (602) fixed to the iron plates (601), and a plurality of stone shoveling bars (603) fixed to the iron plates (601); The regulating mechanism further comprises a fixed block (7), a fixed pipe (12), an air cylinder (13), a piston (14) and a safety valve (17); the fixed plate (8) is located at one end of the sector plate (602); a slide groove (9) and a limit groove (10) matching the fixed block (7) are provided inside the fixed plate (8); the slide groove (9) and the limit groove (10) are communicated with each other; the fixed plate (8) is used to move along the fixed block (7); a rotating hydraulic cylinder (16) is fixedly installed inside each fixed plate (8); an arc-shaped sheet (15) is fixedly installed at the output ends of the two rotating hydraulic cylinders (16); a hydraulic expansion head is fixedly installed inside the fixed plate (8); one end of the hydraulic expansion head is located in the limit groove (10); the other end of the hydraulic expansion head is located in the limit groove (10); The end of the fixed pipe (1201) is connected to the hydraulic pipe of the rotating hydraulic cylinder (16), the air bag (11) is fixedly installed at the bottom of the collecting bucket (6), and the exhaust end of the air bag (11) is connected to the fixed pipe (12), the air cylinder (13) is fixed to the bottom of the fixed plate (8), the fixed pipe (12) and the air cylinder (13) are slidably connected, the piston (14) and the air cylinder (13) are slidably connected, the air cylinder (13) is used to move along the piston (14), the safety valve (17) is installed on the outer surface of the fixed pipe (12), the fixed pipe (1201) includes a hard pipe (1201), and the rest is a soft pipe, the outer surface of the hard pipe (1201) is fixedly connected to a connecting plate (1202), and one end of the connecting plate (1202) is rotatably connected to the fixed block (7).

2. A marine seabed rock cleaning device according to claim 1, characterized in that: The rake heads (3) are arranged in two groups, and the two groups of rake heads (3) are arranged in a staggered distribution. When the first row of rake heads (3) turn over the sinking stones, the distance between the end of the second row of rake heads (3) and the bottom of the sinking stones is shortened.

3. A marine seabed rock cleaning device according to claim 1, characterized in that: The main structure (1) is provided with three groups of support rakes (5) for walking along the seabed.

4. A marine seabed rock cleaning device according to claim 3, characterized in that: The three groups of support rakes (5) are arranged in a staggered manner, and the middle part of the support rakes (5) is arc-shaped, and the two ends are arranged in parallel.

5. The device for cleaning up seabed sunken rocks for ships according to claim 2, characterized in that: The rake head (3) comprises a rake member (301), rake teeth (302) and an arc-shaped head (303); the rake member (301) is fixed to the rake teeth (302) via screws and nuts; the rake teeth (302) and the arc-shaped head (303) are fixed via nuts; the arc-shaped head (303) and the rake teeth (302) are both used for inserting into the seabed; and the arc-shaped head (303) is used for contacting with the sunken stones.

6. The device for cleaning up seabed sunken rocks for ships according to claim 1, characterized in that: One end of the collecting bucket (6) and the upper surface of the main structure (1) are both provided with lifting ears (18), and a traction rope is passed through the lifting ears (18) on the main structure (1) and fixed to the lifting ears (18) on the collecting bucket (6).

7. The device for cleaning up seabed sunken rocks for ships according to claim 4, characterized in that: The height of the bottom end of the supporting rake (5) is greater than the height of the bottom end of the rake head (3).

8. A method for using a marine seabed debris cleaning device, characterized in that: The device for cleaning up seabed sunken rocks according to any one of claims 1 to 7 comprises the following steps: S1: The main structure (1) is connected to the hull through a towing rope, and the hull moves on the sea surface and pulls the main structure (1) through the towing rope to make the whole body move along the riverbed; S2: the rake heads (3) drive the sinking stones to turn upwards, the first row of rake heads (3) shovel the sinking stones upwards for a certain distance, and the second row of rake heads (3) shovel the sinking stones completely out; S3: The end of the stone-shoveling bar (603) is inserted into the seabed, and the sunken stones are collected into the collecting bucket (6) during the movement; S4: When a large amount of sunken rocks are collected at the bottom of the collecting bucket (6), the collecting bucket (6) is turned over, and the sunken rocks slide to the other side of the collecting bucket (6). Then, the end of the shovel bar (603) continues to be inserted into the seabed to collect the sunken rocks.

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