A ship hull protection device

Abstract

The present invention discloses a ship hull protection device, which relates to the technical field of ships and includes a ship hull. Three groups of guide rails are fixedly connected to both sides of the ship hull. Two groups of connecting blocks are respectively slidably connected to the three groups of guide rails on both sides. A front moving block is arranged on the left side of the left group of connecting blocks, and a rear moving block is arranged on the right side of the right group of connecting blocks. A number of first grooves are formed on the left and right sides of each group of connecting blocks, and a connecting part is movably connected in the first grooves. A number of second grooves are formed on the right side of the front moving block, and a number of third grooves are formed on the left side of the rear moving block. Three groups of fourth grooves are formed on the sides of the connecting blocks, the front moving block, and the rear moving block close to the ship hull, and rollers are movably connected in the three groups of fourth grooves. Support plates are hinged to the sides of the two groups of connecting blocks away from the ship hull, and a front connecting plate is fixedly connected to the side of the front moving block away from the ship hull. The present invention has the characteristics of moving to clean and protect the ship hull.

Description

Technical Field

[0001] The present invention relates to the technical field of ships, and specifically to a ship hull protection device. Background Art

[0002] When a ship is in motion, collisions may occur when the distances between two approaching ships are too close, and the ship may run aground in shallow waters. The vibrations and impacts generated during a collision with the hull cannot be effectively absorbed and released. The impact force generated during a collision will directly act on the hull after simple buffering, causing great damage to the hull. The hull has a large swaying amplitude, which has a great impact on the safety of the crew on board and causes unnecessary damage to some equipment and instruments on the ship;

[0003] At present, after a ship has been sailing for a long time, a large number of shellfish will attach to the ship's side. It is difficult to clean and it consumes high costs. It corrodes the ship's structure. And when accumulated over time, it increases the ship's own weight. At the same time, the irregular structure formed by the attachment also affects the resistance to navigation.

[0004] Therefore, it is very necessary to design a ship hull protection device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a ship hull protection device to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A ship hull protection device, including a hull, three groups of guide rails are fixedly connected to both sides of the hull, and two groups of connecting blocks are respectively slidably connected to the three groups of guide rails on both sides. A front moving block is arranged on the left side of the left group of connecting blocks, and a rear moving block is arranged on the right side of the right group of connecting blocks;

[0007] A number of first grooves are formed on the left and right sides of each group of connecting blocks, and connecting parts are movably connected in the first grooves;

[0008] A number of second grooves are formed on the right side of the front moving block, and a number of third grooves are formed on the left side of the rear moving block;

[0009] Three fourth grooves are formed on the sides of the connecting blocks, the front moving block, and the rear moving block close to the hull, and rollers are movably connected in the three fourth grooves;

[0010] Two support plates are hinged to the sides of the two connecting blocks away from the hull. A front connecting plate is fixedly connected to the side of the front moving block away from the hull, and a rear connecting plate is hinged to the side of the rear moving block away from the hull;

[0011] A first convex strip is fixedly connected to the right side of the two support plates, and a fifth groove is formed on the left side of the two support plates;

[0012] A groove six is provided on the left side of the rear connection plate, and a second rib is provided on the right side of the front connection plate;

[0013] Four groups of shovel blocks are fixedly connected to the left side of the front moving block and the right side of the rear moving block close to the hull side. A gap is formed between two adjacent groups of shovel blocks. The gap fits with the guide rail, and the side of the shovel block away from the support plate fits with the hull;

[0014] On the left and right parts of the sides of the front connection plate and the rear connection plate away from the hull, a first buffer part is fixedly connected respectively. On the left and right parts of the sides of the two support plates away from the hull, a second buffer part is fixedly connected respectively;

[0015] On the side away from the hull of the first buffer part on the front connection plate and the rear connection plate, a first buffer plate is hinged respectively. On the side away from the hull of the second buffer part on the two support plates, a second buffer plate is hinged. The left and right sides of the second buffer plate are respectively partially located in front of the two first buffer parts;

[0016] Buffer air bags are fixedly connected between the first buffer plate, the second buffer plate and the front connection plate, the support plate and the rear connection plate;

[0017] Steel cables are fixedly connected to the left side of the front moving block and the right side of the rear moving block. Two groups of steel rings and turning rings are fixedly connected to the left side and the right side of the hull respectively. Two groups of first rollers and two groups of second rollers are fixedly connected to the left and right parts of the upper side of the hull respectively;

[0018] Motors are fixedly connected to the right side of the two groups of first rollers and the left side of the two groups of second rollers. The four motors are fixedly connected to the deck in the hull cabin.

[0019] According to the above technical solution: The front moving block and the rear moving block are both slidably connected to the guide rail, and the rollers are slidably connected to the guide rail.

[0020] According to the above technical solution, the position of the second groove corresponds to the position of the first groove, and the second groove is connected to an adjacent group of first grooves through a connecting part.

[0021] According to the above technical solution, the position of the third groove corresponds to the position of the first groove, and the third groove is connected to an adjacent group of first grooves through a connecting part.

[0022] According to the above technical solution, the connecting part includes several groups of spherical balls. Each group of spherical balls is respectively embedded in each group of first grooves, second grooves and third grooves. A connecting rod is fixedly connected to the middle between two adjacent groups of spherical balls.

[0023] According to the above technical solution, the first convex strip on the adjacent sides of the two groups of the support plates is matched with the fifth groove, the sixth groove is matched with the first convex strip on the right side of the group of support plates adjacent to the rear connection plate, and the second convex strip is matched with the fifth groove on the left side of the group of support plates adjacent to the front connection plate.

[0024] According to the above technical solution, both the first buffer part and the second buffer part include sleeves. A memory spring is fixedly connected to the bottom side of the inner cavity of the sleeve. A buffer column is fixedly connected to the side of the memory spring away from the hull, and the buffer column is slidably connected in the inner cavity of the sleeve.

[0025] According to the above technical solution, the two steel cables on the front moving block sequentially pass through the two steel rings, the steering ring and the hull bulkhead and are wound around the two first rollers, and the two steel cables on the rear moving block sequentially pass through the two steel rings, the steering ring and the hull bulkhead and are wound around the two second rollers.

[0026] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: In the present invention, by providing a guide rail, a front moving block, a connecting block and a rear moving block, the shovel blocks on the front moving block and the rear moving block are used to remove the attachments on both sides of the hull by moving on the guide rail;

[0027] By providing steel cables on one side of the front moving block and the rear moving block, as well as the first rollers, the second rollers and the motor for winding the steel cables, the effect that the device moves and cleans on the guide rails on both sides of the hull through the winding of the steel cables is achieved;

[0028] By providing the first buffer part, the second buffer part, the first buffer plate, the second buffer plate and the buffer airbag, when the hull collides, it is pulled to the touch point through the steel cable, preventing damage to the hull during the touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0030] Figure 1 is the overall front cross-sectional structural schematic diagram of the present invention;

[0031] Figure 2 is the structural schematic diagram of the connecting block and its components of the present invention;

[0032] Figure 3 is the schematic diagram of the connecting block and its components of the present invention from another angle;

[0033] Figure 4 is the cross-sectional structural schematic diagram of the connecting block and its components of the present invention;

[0034] Figure 5 is the cross-sectional structural schematic diagram of the buffer part of the present invention;

[0035] Figure 6 is a schematic cross-sectional structure diagram of the hull of the present invention;

[0036] In the figure: 1, hull; 2, guide rail; 3, front moving block; 4, rear moving block; 5, first groove; 6, connecting part; 7, second groove; 8, third groove; 9, fourth groove; 10, roller; 11, spherical ball; 12, connecting rod; 13, support plate; 14, front connecting plate; 15, rear connecting plate; 16, first rib; 17, fifth groove; 18, sixth groove; 19, second rib; 20, shovel block; 21, first buffer part; 22, second buffer part; 23, sleeve; 24, memory spring; 25, buffer column; 26, first buffer plate; 27, second buffer plate; 28, buffer airbag; 29, steel cable; 30, steel ring; 31, steering ring; 32, first winding roller; 33, second winding roller; 34, motor; 35, connecting block. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to Figure 1-6 , the present invention provides a technical solution: a ship hull protection device, including a hull 1, three groups of guide rails 2 are fixedly connected to both sides of the hull 1, two groups of connecting blocks 35 are respectively slidably connected to the three groups of guide rails 2 on both sides, a front moving block 3 is arranged on the left side of a group of connecting blocks 35 on the left, a rear moving block 4 is arranged on the right side of a group of connecting blocks 35 on the right, and both the front moving block 3 and the rear moving block 4 are slidably connected to the guide rail 2;

[0039] A number of first grooves 5 are opened on the left and right sides of each group of connecting blocks 35, a connecting part 6 is movably connected in the first grooves 5, and the first grooves 5 between the two groups of connecting blocks 35 are connected through the connecting part 6;

[0040] A number of second grooves 7 are opened on the right side of the front moving block 3, the positions of the second grooves 7 correspond to the positions of the first grooves 5, and the second grooves 7 and an adjacent group of first grooves 5 are connected through the connecting part 6, so as to connect the front moving block 3 and the connecting block 35;

[0041] A number of third grooves 8 are opened on the left side of the rear moving block 4, the positions of the third grooves 8 correspond to the positions of the first grooves 5, and the third grooves 8 and an adjacent group of first grooves 5 are connected through the connecting part 6, so as to connect the rear moving block 4 and the connecting block 35;

[0042] On one side of the connecting block 35, the front moving block 3, and the rear moving block 4 close to the hull 1, three groups of grooves four 9 are provided. In each of the three groups of grooves four 9, a roller 10 is movably connected. The roller 10 is slidably connected to the guide rail 2, so that the front moving block 3, the connecting block 35, and the rear moving block 4 roll and slide on the guide rail 2.

[0043] Reference Figure 3 , the connecting part 6 includes several groups of spheres 11. Each group of spheres 11 is respectively embedded in each group of grooves one 5, grooves two 7, and grooves three 8. An intermediate connecting rod 12 is fixedly connected between the adjacent two groups of spheres 11;

[0044] On one side of the two connecting blocks 35 away from the hull 1, support plates 13 are hinged. On one side of the front moving block 3 away from the hull 1, a front connecting plate 14 is fixedly connected. On one side of the rear moving block 4 away from the hull 1, a rear connecting plate 15 is hinged;

[0045] On the right side of the two support plates 13, a first convex strip 16 is fixedly connected. On the left side of the two support plates 13, grooves five 17 are provided. The first convex strip 16 on the adjacent side of the two support plates 13 is matched with the grooves five 17, so that the two support plates 13 are connected;

[0046] On the left side of the rear connecting plate 15, a groove six 18 is provided. The groove six 18 is matched with the first convex strip 16 on the right side of a support plate 13 adjacent to the rear connecting plate 15, so that the rear connecting plate 15 is connected to the support plate 13;

[0047] On the right side of the front connecting plate 14, a second convex strip 19 is provided. The second convex strip 19 is matched with the groove five 17 on the left side of a support plate 13 adjacent to the front connecting plate 14, so that the front connecting plate 14 is connected to the support plate 13.

[0048] On one side of the left side of the front moving block 3 and the right side of the rear moving block 4 close to the hull 1, four groups of scraping blocks 20 are fixedly connected. A gap is formed between the adjacent two groups of scraping blocks 20. The gap is fitted with the guide rail 2. The side of the scraping block 20 away from the support plate 13 is attached to the hull 1, and is used for scraping the attachments adhered to the hull 1;

[0049] In the middle part of the sides of the front connecting plate 14 and the rear connecting plate 15 away from the hull 1, a first buffer part 21 is fixedly connected. In the middle part of the sides of the two support plates 13 away from the hull 1, a second buffer part 22 is fixedly connected;

[0050] Both the first buffer part 21 and the second buffer part 22 include a sleeve 23. At the bottom side of the inner cavity of the sleeve 23, a memory spring 24 is fixedly connected. The side of the memory spring 24 away from the hull 1 is fixedly connected with a buffer column 25. The buffer column 25 is slidably connected in the inner cavity of the sleeve 23;

[0051] On the side far from the hull 1, buffer parts one 21 on the front connecting plate 14 and the rear connecting plate 15 are both hinged with buffer plates one 26. On the side far from the hull 1 of buffer parts two 22 on the two groups of support plates 13, buffer plates two 27 are hinged. The left and right sides of the buffer plate two 27 are respectively partially located in front of the two groups of buffer parts one 21.

[0052] Buffer air bags 28 are fixedly connected between the buffer plates one 26, the buffer plates two 27 and the front connecting plate 14, the support plates 13 and the rear connecting plate 15.

[0053] Steel cables 29 are fixedly connected to the left side of the front moving block 3 and the right side of the rear moving block 4. Two groups of steel rings 30 and steering rings 31 are fixedly connected to the left and right sides of the hull 1 respectively. Two groups of winding rollers one 32 and winding rollers two 33 are fixedly connected to the left and right parts of the cabin of the hull 1 respectively. The two steel cables 29 on the front moving block 3 pass through the two groups of steel rings 30, the steering rings 31 and the cabin wall of the hull 1 in sequence and are wound around the two groups of winding rollers one 32. The two steel cables 29 on the rear moving block 4 pass through the two groups of steel rings 30, the steering rings 31 and the cabin wall of the hull 1 in sequence and are wound around the two groups of winding rollers two 33.

[0054] Motors 34 are fixedly connected to the right sides of the two groups of winding rollers one 32 and one side of the two groups of winding rollers two 33. The four motors 34 are fixedly connected to the deck in the cabin of the hull 1.

[0055] In this embodiment, initially, the two sets of devices are respectively located in the middle of the two sides of the hull 1. When the two sides of the hull 1 need to be cleaned, first start the two motors 34 on the left side of the hull 1 to make the two groups of winding rollers one 32 wind up the steel cables 29. At the same time, start the two motors 34 on the right side of the hull 1 to make the two groups of winding rollers two 33 start to unwind. The two steel cables 29 respectively pull the two sets of devices on the two sides of the hull 1 to move along the guide rail 2 towards the left side of the hull 1. During the movement, the shovel blocks 20 on the two front moving blocks 3 clean the attachments on the two sides of the hull 1.

[0056] When the two front moving blocks 3 move to the steel rings 30 on the left side of the hull 1, control the four motors 34 on the left and right to rotate in the reverse direction respectively, that is, the two groups of winding rollers two 33 start to wind up the steel cables 29, and the two groups of winding rollers one 32 start to unwind the steel cables 29.

[0057] The steel cables 29 on the two rear moving blocks 4 pull the two sets of devices to move towards the right side of the hull 1. During the process, the shovel blocks 20 on the two rear moving blocks 4 clean the attachments on the two sides of the hull 1. Until the two rear moving blocks 4 move to the steel rings 30 on the right side of the hull 1, reverse the rotation of the four motors 34 on the left and right again to make the device move to the initial position on the left side of the hull 1, and then stop the motors 34 to run, thus completing the cleaning work on the two sides of the hull 1.

[0058] When the ship is in motion and encounters other vessels or reefs and is about to collide, quickly start two sets of corresponding motors 34 to move the devices on both sides of the hull 1 so that they move to the predicted touch point. When touched, the touching object will press against the second buffer plate 27. The second buffer plate 27 moves towards one side of the hull 1 under pressure, so that the two sets of first buffer plates 26 move towards the touching object side away from the second buffer plate 27, jointly relieving the pressure brought by the touching object;

[0059] Subsequently, the second buffer plate 27 and the two sets of first buffer plates 26 move towards one side of the hull 1 under pressure. At the same time, the buffer airbag 28 and the first buffer part 21 and the second buffer part 22 buffer the second buffer plate 27 and the first buffer plates 26, thus preventing the touching object from damaging the ship;

[0060] When the ship leaves the touching object, the buffer airbag 28 and the memory spring 24 in the buffer part restore the second buffer plate 27 and the first buffer plates 26 to their original positions. At the same time, start the motor 34 to move the device back to its original position, without affecting the ship's speed.

[0061] A method for using a ship hull protection device:

[0062] The method for using to clean the ship hull 1 is as follows:

[0063] S1: Start the four sets of left and right motors 34, respectively make the two sets of first rollers 32 wind up, and the two sets of second rollers 33 unwind, and the two sets of devices move towards the left side of the hull 1;

[0064] S2: During the movement, clean the attachments on both sides of the hull 1 and move to the steel ring 30 on the left side of the hull 1;

[0065] S3: Run the four sets of motors 34 in reverse, respectively make the two sets of second rollers 33 wind up, and the two sets of first rollers 32 unwind, and the device moves towards the right side of the hull 1;

[0066] S4: During the movement, clean the attachments on both sides of the hull 1 and move to the steel ring 30 on the right side of the hull 1;

[0067] S5: Run the four sets of motors 34 in reverse again, respectively make the two sets of first rollers 32 wind up, and the two sets of second rollers 33 unwind, and the device moves towards the left side of the hull 1 and moves to the middle of the hull 1, and the motor 34 stops running and the device resets.

[0068] The method for using to protect the ship is as follows:

[0069] Sa: Start the corresponding two sets of motors 34 and control the corresponding devices to move to the predicted touch point;

[0070] Sb: The touch object contacts the second buffer plate 27, and the second buffer plate 27 moves towards the hull 1 side and makes the two groups of first buffer plates 26 contact the touch object on the side away from the second buffer plate 27;

[0071] Sc: One side of the touch object is resisted by the second buffer plate 27 and the two groups of first buffer plates 26, and the second buffer plate 27 and the two groups of first buffer plates 26 are pressed towards the hull 1 side;

[0072] Sd: The buffer airbag 28, the first buffer part 21 and the second buffer part 22 perform pressure buffering on the second buffer plate 27 and the two groups of first buffer plates 26;

[0073] Se: After the buffering is completed, the ship sails away from the touch object, the second buffer plate 27 and the two groups of first buffer plates 26 return to their original states, and the motor 34 drives the device back to its original position.

[0074] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0075] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A ship hull protection device, comprising a ship hull (1), characterized in that: On both sides of the hull (1), three sets of guide rails (2) are fixedly connected. Two sets of connecting blocks (35) are respectively slidably connected on the three sets of guide rails (2) on both sides. On the left side of the left set of connecting blocks (35), a front moving block (3) is arranged. On the right side of the right set of connecting blocks (35), a rear moving block (4) is arranged; On the left and right sides of each set of connecting blocks (35), a number of first grooves (5) are formed. A connecting part (6) is movably connected in the first grooves (5); On the right side of the front moving block (3), a number of second grooves (7) are formed. On the left side of the rear moving block (4), a number of third grooves (8) are formed; On the side of the connecting block (35), the front moving block (3), and the rear moving block (4) close to the hull (1), three sets of fourth grooves (9) are formed. A roller (10) is movably connected in each of the three sets of fourth grooves (9); On the side of the two sets of connecting blocks (35) away from the hull (1), support plates (13) are hinged. On the side of the front moving block (3) away from the hull (1), a front connecting plate (14) is fixedly connected. On the side of the rear moving block (4) away from the hull (1), a rear connecting plate (15) is hinged; On the right side of the two sets of support plates (13), a first convex strip (16) is fixedly connected. On the left side of the two sets of support plates (13), a fifth groove (17) is formed; On the left side of the rear connecting plate (15), a sixth groove (18) is formed. On the right side of the front connecting plate (14), a second convex strip (19) is formed; On the left side of the front moving block (3) and the right side of the rear moving block (4) close to the hull (1), four sets of shovel blocks (20) are fixedly connected. A gap is formed between two adjacent shovel blocks (20). The gap fits with the guide rail (2). The side of the shovel block (20) away from the support plate (13) fits with the hull (1); In the middle part of the side of the front connecting plate (14) and the rear connecting plate (15) away from the hull (1), a first buffer part (21) is fixedly connected. In the middle part of the side of the two sets of support plates (13) away from the hull (1), a second buffer part (22) is fixedly connected; On the side away from the hull (1) of the first buffer part (21) on the front connecting plate (14) and the rear connecting plate (15), a first buffer plate (26) is hinged. On the side away from the hull (1) of the second buffer part (22) on the two sets of support plates (13), a second buffer plate (27) is hinged. The left and right sides of the second buffer plate (27) are respectively partially located in front of the two sets of first buffer parts (21); Between the first buffer plate (26), the second buffer plate (27) and the front connecting plate (14), the support plate (13) and the rear connecting plate (15), a buffer airbag (28) is fixedly connected; On the left side of the front moving block (3) and the right side of the rear moving block (4), a steel cable (29) is fixedly connected. On the left and right sides of the hull (1), two sets of steel rings (30) and a steering ring (31) are fixedly connected. On the left and right parts of the upper side of the hull (1), two sets of first rollers (32) and second rollers (33) are fixedly connected; On the right side of the two groups of the first rollers (32) and on one side of the two groups of the second rollers (33), motors (34) are fixedly connected, and the four groups of motors (34) are fixedly connected to the deck inside the cabin of the hull (1).

2. The ship hull protection device according to claim 1, characterized in that: The front moving block (3) and the rear moving block (4) are both slidably connected to the guide rail (2), and the roller (10) is slidably connected to the guide rail (2).

3. The ship hull protection device according to claim 2, characterized in that: The position of the second groove (7) corresponds to the position of the first groove (5), and the second groove (7) is connected to an adjacent group of the first grooves (5) through a connecting part (6).

4. The ship hull protection device according to claim 3, characterized in that: The position of the third groove (8) corresponds to the position of the first groove (5), and the third groove (8) is connected to an adjacent group of the first grooves (5) through a connecting part (6).

5. The ship hull protection device according to claim 4, characterized in that: The connecting part (6) includes several groups of spherical balls (11), and each group of spherical balls (11) is respectively embedded in each group of the first grooves (5), the second grooves (7) and the third grooves (8), and a connecting rod (12) is fixedly connected to the middle between two adjacent groups of spherical balls (11).

6. The ship hull protection device according to claim 5, characterized in that: The first convex strips (16) on the adjacent sides of the two groups of support plates (13) are matched with the fifth grooves (17), the sixth groove (18) is matched with the first convex strips (16) on the right side of the support plate (13) adjacent to the rear connecting plate (15), and the second convex strips (19) are matched with the fifth grooves (17) on the left side of the support plate (13) adjacent to the front connecting plate (14).

7. The ship hull protection device according to claim 6, characterized in that: Both the first buffer part (21) and the second buffer part (22) include sleeves (23), a memory spring (24) is fixedly connected to the bottom side of the inner cavity of the sleeve (23), a buffer column (25) is fixedly connected to the side of the memory spring (24) away from the hull (1), and the buffer column (25) is slidably connected in the inner cavity of the sleeve (23).

8. The ship hull protection device according to claim 7, characterized in that: The two steel cables (29) on the front moving block (3) sequentially pass through the two steel rings (30), the steering rings (31) and the cabin wall of the hull (1) and are wound around the two groups of the first rollers (32), and the two steel cables (29) on the rear moving block (4) sequentially pass through the two steel rings (30), the steering rings (31) and the cabin wall of the hull (1) and are wound around the two groups of the second rollers (33).

9. The usage method of the ship hull protection device according to claim 8, characterized in that: The usage method for cleaning the ship hull is as follows: S1: Start the four motors (34) on the left and right, respectively make the two groups of the first rollers (32) wind up, the two groups of the second rollers (33) unwind, and the two devices move to the left side of the hull (1). S2: During the movement, clean the attachments on both sides of the hull (1) and move to the steel ring (30) on the left side of the hull (1). S3: Run the four motors (34) in reverse, respectively make the two groups of the second rollers (33) wind up, the two groups of the first rollers (32) unwind, and the device moves to the right side of the hull (1). S4: During the movement, clean the attachments on both sides of the hull (1) and move to the steel ring (30) on the right side of the hull (1). S5: Run the four motors (34) in reverse again, respectively make the two groups of the first rollers (32) wind up, the two groups of the second rollers (33) unwind, the device moves to the left side of the hull (1) and moves to the middle of the hull (1), the motor (34) stops running, and the device resets.

10. The usage method of the ship hull protection device according to claim 8, characterized in that: The usage method for ship protection is as follows: S-a: Activate the corresponding two sets of motors (34) and control the corresponding device to move to the predicted touch point; S-b: The touched object contacts the second buffer plate (27), and the second buffer plate (27) moves towards one side of the hull (1) and makes the two sets of first buffer plates (26) contact the touched object on the side away from the second buffer plate (27); S-c: One side of the touched object is resisted by the second buffer plate (27) and the two sets of first buffer plates (26), and the second buffer plate (27) and the two sets of first buffer plates (26) are pressed towards one side of the hull (1); S-d: The buffer airbag (28), the first buffer part (21) and the second buffer part (22) buffer the pressure on the second buffer plate (27) and the two sets of first buffer plates (26); S-e: After the buffering is completed, the ship sails away from the touched object, the second buffer plate (27) and the two sets of first buffer plates (26) recover, and the motor (34) drives the device to return to its original position.

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