A rubber fender arrangement for a drilling vessel

Abstract

The application discloses a rubber fender device of a drilling ship and relates to the technical field of offshore engineering equipment. The device comprises a mounting plate, which is used for being mounted on the outer wall of the drilling ship for quick dismounting. The device further comprises a self-adapting adjusting mechanism mounted on the mounting plate. In operation, the adjusting track moving end drives the moving adjusting plate to displace, so that the moving adjusting plate drives the fender air bag to the corresponding position to buffer the drilling ship, thereby avoiding local excessive extrusion, eccentric wear or stress concentration caused by position deviation, effectively reducing the abnormal wear of the mounting plate and the auxiliary ring, and simultaneously adjusting the design to adapt to different berthing conditions and butt joint scenes and improve the universality of the device. In the later maintenance, the stress state can also be optimized by fine-tuning the position, the overall service life is prolonged, and the anti-collision buffering effect is stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of marine engineering equipment technology, specifically to a rubber fender device for drilling ships. Background Technology

[0002] In deep-sea oil and gas operations, drilling vessels are constantly exposed to dynamic marine environments with strong winds, waves, rapids, and high tides. When docking or approaching shore, collisions and impacts are frequent and significant, making the hull and platform structure susceptible to damage. Reliable buffer and protection devices are required, and rubber fenders, due to their high elasticity, good energy absorption, and resistance to seawater corrosion, have become an essential anti-collision component for drilling vessels.

[0003] Patent publication number CN223001659U relates to a hovercraft hull, wherein the hovercraft hull is recessed into one side of the skirt to form a groove, and an adjusting component is provided within the groove. The adjusting component includes a fender that slides horizontally along the inner wall of the groove. This device achieves stable installation of the adjusting component through the configuration of the hovercraft hull and the groove, and through the configuration of the driving component, it enables the fender to slide horizontally within the groove, thereby achieving adaptive adjustment of the fender's protective radius and broadening the application range of the entire fender. Furthermore, the inclusion of a water-stopping component prevents water from entering the groove during the use of the hovercraft, thus avoiding abnormalities in the fender and ensuring a more stable fender fixing process.

[0004] While this device can achieve adaptive adjustment to broaden the application range of the fender and make the entire fender fixing process more stable, it is prone to certain deviations when adjusting displacement. At the same time, when buffering, single-stage buffering can easily cause greater friction on the fender, significantly reducing the service life of the equipment. It is also difficult to guarantee that the airbag will not be damaged during operation, thus reducing the practicality of the equipment. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a rubber fender device for drilling vessels, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a drilling ship rubber fender device, including an installation plate, the installation plate being used for quick installation and removal from the outer wall of the drilling ship, and the drilling ship rubber fender device further including an adaptive adjustment mechanism installed on the installation plate; The adaptive adjustment mechanism includes an adjustment rail mounted on the mounting plate for displacement, a movable adjustment plate mounted on the moving end of the adjustment rail for rapid adjustment, a fender airbag mounted on the movable adjustment plate to prevent the drilling vessel from capsizing, an adjustment ring mounted on the fender airbag for connection and positioning, a tightening chain mounted on the adjustment ring, and an auxiliary ring mounted on the tightening chain to assist in increasing buoyancy. The movable adjustment plate has a self-sensing device inside. The tightening chain contacts the outer wall of the fender airbag and prevents the auxiliary ring from detaching and swaying. The outer wall of the auxiliary ring contacts the outer wall of the fender airbag. The auxiliary ring is made of a high-elasticity rubber material with low density and excellent aging resistance in seawater environments. The adjustment ring is equipped with a two-stage micro-adjustment knob to adjust the tightness of the tightening chain, ensuring the stability of the drilling vessel during operation.

[0007] The drilling vessel rubber fender device also includes a buffer mechanism installed on the movable adjustment plate, which is used to improve the overall protection mechanism of the fender airbag; The buffer mechanism includes a fixed shell mounted on the movable adjustment plate, a sliding rod mounted inside the fixed shell, a hinge block mounted on the sliding rod, and a connecting belt ring mounted inside the hinge block.

[0008] During operation, the adjusting track moves the adjusting plate via the moving end, which in turn moves the fender airbag to the corresponding position to buffer the drilling vessel. This avoids excessive local compression, uneven wear, or concentrated stress caused by positional deviations, effectively reducing abnormal wear on the fender mounting plate and auxiliary ring. The adjustable design adapts to different berthing conditions and docking scenarios, improving the device's versatility. In later maintenance, fine-tuning the position can optimize the stress state, extending the overall service life and ensuring stable and reliable anti-collision buffering. When the fender airbag is in operation, it moves the connecting belt ring, which in turn moves the sliding rod to elastically contract, providing large-deformation flexible buffering in conjunction with the fender airbag body. This absorbs the main impact kinetic energy, reduces direct friction and scraping, significantly lowers the impact peak, protects the hull and platform structure, and reduces localized damage to the fender airbag, improving overall anti-collision reliability and service life.

[0009] A spring is provided between the fixed shell and the sliding rod, the inside of the connecting belt ring is in contact with the outer wall of the fender airbag, and the connecting belt ring is in contact with the outer wall of the tightening chain.

[0010] The drilling vessel rubber fender device also includes an anti-fall mechanism installed on the movable adjustment plate to prevent the fender airbag from shifting during cushioning. The anti-fall mechanism includes a positioning plate installed on the movable adjustment plate, a rotating rod installed inside the positioning plate, a positioning rod installed on the rotating rod for positioning, a gear installed on the rotating rod, and a rack installed on the sliding rod. The positioning rod contacts the outer wall of the movable adjustment plate, the inside of the positioning rod contacts the outer wall of the fender airbag, the gear meshes with the rack, and the side of the rack away from the gear contacts the outer wall of the movable adjustment plate.

[0011] The drilling vessel rubber fender device also includes an automatic tightening mechanism installed on the movable adjustment plate, which is used to automatically tighten the fender airbag when it is loose; The automatic tightening mechanism includes an electric turntable mounted on the movable adjustment plate, a winding chain mounted on the electric turntable, and a connecting block mounted on the adjustment ring.

[0012] The winding chain is fixedly installed on the side away from the electric turntable and connected to the connecting block. The electric turntable tightens the winding chain by rotating clockwise.

[0013] When the fender airbag is in operation, the sliding rod drives the rack to move, and the rack drives the positioning rod to rotate towards the fender airbag. The positioning rod rotates and approaches the fender airbag for positioning, ensuring that the fender airbag remains stable and in contact with the hull under conditions of frequent berthing and repeated wave impacts on drilling ships. This prevents displacement, rollover, or even detachment due to violent collisions, ensuring even force distribution during impacts and preventing localized suspension or excessive compression. It effectively protects the fender body and hull structure from scratch damage, ensuring continuous and stable berthing operations at sea. When berthing, the fender airbag may loosen. The electric turntable drives the winding chain to wind up, which in turn moves the adjusting ring to tighten it. After tightening, the overall structure is stronger, and the force can be quickly and evenly distributed during a collision. This prevents localized loosening that could lead to uneven wear, delamination, or chain slippage, improving buffer response efficiency, ensuring stable and reliable impact protection performance, reducing the risk of damage under high-load conditions at sea, extending service life, and reducing maintenance frequency.

[0014] The drilling vessel rubber fender device also includes an anti-rewinding mechanism installed on the fixed shell to prevent loosening when the electric turntable is tightened; The anti-rewinding mechanism includes a rotating rod mounted on the fixed shell, a pulley mounted on the rotating rod, a long plate mounted on the fixed shell, and a trapezoidal block mounted on the electric turntable. The outer wall of the trapezoidal block is formed on an inclined surface. The circumferential surface of the pulley contacts the outer wall of the electric turntable. The outer wall of the long plate contacts the rotating rod. A torsion spring is provided between the rotating rod and the fixed shell.

[0015] The drilling vessel rubber fender device also includes a connecting mechanism installed on the fender airbag for connecting when the drilling vessel is impacted; The connecting mechanism includes a long plate mounted on the fender airbag, a mounting block mounted on the long plate, a centering plate mounted inside the mounting block, a connecting rod mounted on the centering plate, and a telescopic sleeve mounted on the long plate.

[0016] When tensioned, the electric turntable drives the trapezoidal block to rotate. The trapezoidal block, in conjunction with the pulley, achieves multi-stage anti-rewinding damping. During impact rebound, reverse unwinding and slippage occur, ensuring that the entire fender device remains in a stable and taut state. Under the repeated impact of waves, it can prevent structural loosening and displacement, maintain uniform stress, improve operational reliability, and reduce frequent adjustments. When the fender airbag is in operation, the auxiliary ring drives the connecting rod to rotate. The connecting rod drives the centering plate to rotate and limit the auxiliary ring, ensuring that each tire maintains a reasonable spacing and is evenly distributed on the outside of the fender. This prevents the tires from crowding and overlapping due to collisions, thus avoiding loss of buffer space. It ensures that each tire can participate in energy absorption and impact protection, while preventing excessive tire compression that could cause rubber cracking and steel wire deformation. At the same time, it prevents the chain from breaking and falling off due to uneven stress caused by the tires gathering together. This effectively improves the overall protective stability, reduces equipment damage, and ensures the safe berthing of the drilling vessel.

[0017] A torsion spring is provided between the mounting block and the centering plate. The connecting rod contacts the outer wall of the mounting block and the auxiliary ring. The end of the telescopic sleeve away from the long plate is fixedly connected to the auxiliary ring. The inside of the telescopic sleeve contacts the outer wall of the tightening chain.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this invention, during operation, the adjusting track drives the movable adjusting plate to adjust its displacement via the moving end. This movable adjusting plate then moves the fender airbag to the corresponding position to buffer the drilling vessel, avoiding excessive local compression, uneven wear, or concentrated stress caused by positional deviations. This effectively reduces abnormal wear on the fender mounting plate and auxiliary ring. The adjustable design adapts to different berthing conditions and docking scenarios, improving the device's versatility. In later maintenance, fine-tuning the position optimizes the stress state, extending the overall service life and ensuring stable and reliable anti-collision buffering. When the fender airbag is in operation, it moves the connecting belt ring, which in turn moves the sliding rod to elastically contract, providing large-deformation flexible buffering in conjunction with the fender airbag body. This absorbs the main impact kinetic energy, reduces direct friction and scraping, significantly lowers the impact peak, protects the hull and platform structure, and reduces localized damage to the fender airbag, improving overall anti-collision reliability and service life.

[0019] 2. In this invention, when the fender airbag is in operation, the sliding rod will drive the rack to move, and the rack will drive the positioning rod to rotate towards the fender airbag. The positioning rod rotates and approaches the fender airbag for positioning, so that the fender airbag can always maintain a stable fit under the conditions of frequent berthing of drilling ships and repeated impacts from waves. This avoids displacement, rollover or even detachment due to violent collisions, and ensures uniform impact force distribution, without local suspension or excessive compression. It effectively protects the fender body and the hull structure from scratch damage, ensuring continuous and stable berthing operations at sea. When berthing, the fender airbag may loosen. The electric turntable drives the winding chain to wind up. The winding chain will drive the adjusting ring to move and tighten. After tightening, the overall structure is stronger, and the force can be quickly and evenly transmitted during a collision. This prevents local loosening from causing uneven wear, tire shedding or chain slippage, improves the buffer response efficiency, ensures stable and reliable impact protection performance, reduces the risk of damage under high load conditions at sea, extends service life and reduces maintenance frequency.

[0020] 3. In this invention, during tensioning, the electric turntable drives the trapezoidal block to rotate. The trapezoidal block, in conjunction with the pulley, achieves multi-stage anti-rewinding damping. During impact rebound, reverse unwinding and slippage occur, ensuring that the entire fender device remains in a stable tensioned state. Under the repeated impact of waves, it can prevent structural loosening and displacement, maintain uniform force distribution, improve operational reliability, and reduce frequent adjustments. When the fender airbag is in operation, the auxiliary ring drives the connecting rod to rotate, and the connecting rod drives the centering plate to rotate, limiting the auxiliary ring. This ensures that each tire maintains a reasonable spacing and is evenly distributed on the outside of the fender, preventing the loss of buffer spacing due to collision compression and overlapping. This ensures that each tire can participate in energy absorption and impact protection normally, while preventing excessive tire compression that could cause rubber cracking and steel wire deformation. It also prevents the chain from breaking and falling off due to uneven force distribution caused by tire aggregation. This effectively improves the overall protective stability, reduces equipment damage, and ensures the safe berthing of drilling vessels. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram showing the positional structure of the hinge block and adjusting ring of the present invention; Figure 3 This is a schematic diagram showing the positional structure of the tightening chain and auxiliary ring of the present invention; Figure 4 This is a schematic diagram showing the positional structure of the electric turntable and the winding chain of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the position and structure of A in the middle; Figure 6 This is a schematic diagram showing the positional structure of the trapezoidal block and pulley in this invention; Figure 7 This is a schematic diagram showing the position and structure of the centering plate and connecting rod of the present invention.

[0022] The meanings of the labels in the diagram are as follows: 1. Mounting plate; 2. Adjusting track; 3. Moving adjusting plate; 4. Fender airbag; 5. Fixed shell; 6. Sliding rod; 7. Hinge block; 8. Connecting belt ring; 9. Adjusting ring; 10. Tightening chain; 11. Auxiliary ring; 12. Anti-fall mechanism; 121. Positioning plate; 122. Rotating rod; 123. Positioning rod; 124. Gear; 125. Rack; 126. Electric turntable; 127. Winding chain; 128. Connecting block; 13. Anti-rewinding mechanism; 131. Trapezoidal block; 132. Rotating rod; 133. Pulley; 134. Long plate; 135. Mounting block; 136. Centering plate; 137. Connecting rod; 138. Telescopic sleeve. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Please see Figures 1-3 One embodiment of the present invention is: a drilling ship rubber fender device, including a mounting plate 1, which is used to be installed on the outer wall of the drilling ship for quick installation and removal. The drilling ship rubber fender device also includes an adaptive adjustment mechanism installed on the mounting plate 1. The adaptive adjustment mechanism includes an adjustment rail 2 mounted on the mounting plate 1 for displacement, a movable adjustment plate 3 mounted on the moving end of the adjustment rail 2 for rapid adjustment, a fender airbag 4 mounted on the movable adjustment plate 3 to prevent the drilling vessel from capsizing, an adjustment ring 9 mounted on the fender airbag 4 for connection and positioning, a tightening chain 10 mounted on the adjustment ring 9, and an auxiliary ring 11 mounted on the tightening chain 10 for increasing buoyancy. The movable adjustment plate 3 is equipped with a self-sensing device. The tightening chain 10 contacts the outer wall of the fender airbag 4 to prevent the auxiliary ring 11 from detaching and swaying. The outer wall of the auxiliary ring 11 contacts the outer wall of the fender airbag 4. The auxiliary ring 11 is made of high-elasticity rubber material with low density and excellent aging resistance in seawater environment. The adjustment ring 9 is equipped with a two-stage micro-adjustment knob to adjust the tightness of the tightening chain 10 to ensure the stability of the drilling vessel during operation.

[0025] The drilling vessel rubber fender also includes a buffer mechanism installed on the movable adjustment plate 3 to improve the overall protection mechanism of the fender airbag 4; The buffer mechanism includes a fixed housing 5 mounted on the movable adjustment plate 3, a sliding rod 6 mounted inside the fixed housing 5, a hinge block 7 mounted on the sliding rod 6, and a connecting belt ring 8 mounted inside the hinge block 7.

[0026] A spring is provided between the fixed shell 5 and the sliding rod 6. The inside of the connecting belt ring 8 contacts the outer wall of the fender airbag 4, and the connecting belt ring 8 contacts the outer wall of the tightening chain 10.

[0027] In this embodiment, the device is primarily used for buffering and collision prevention when ships and platforms are berthed. The core of the mounting plate 1 utilizes a highly elastic rubber body or an internal inflatable structure. When the hull is subjected to collision and compression by wind and waves, the mounting plate 1 absorbs the impact kinetic energy through large rubber deformation and gas compression, converting mechanical energy into elastic potential energy and thermal energy, significantly reducing the instantaneous impact force. Simultaneously, the large contact area of ​​the fender disperses stress, preventing localized damage to the hull and dock structure. After the impact, the mounting plate 1 rebounds and returns to its original shape through the rubber and compressed gas, allowing it to repeatedly withstand reciprocating loads. This device features high energy absorption efficiency, low reaction force, resistance to seawater corrosion, and adaptability to tilting collisions, effectively ensuring the safety of drilling vessels during offshore berthing operations. The auxiliary ring 11 primarily prevents the rubber fender body from directly contacting and scraping the hull and platform, reducing wear and tear. Simultaneously, the auxiliary ring 11 can share some of the impact, increasing the friction of the contact surface and extending the overall service life. During operation, the tightening chain 10 connects the auxiliary rings 11 in series and binds them together to the surface of the mounting plate 1 to prevent tire displacement, detachment, or rollover during berthing impacts. When the drilling ship approaches, the adjustment track 2 on the mounting plate 1 will be activated. The operation of the adjustment track 2 will drive the movable adjustment plate 3 to adjust its displacement through the moving end, thereby moving the fender airbag 4 to the corresponding position. After the fender airbag 4 is in the corresponding position, it will buffer the drilling ship. The height and tilt angle of the fender airbag 4 can be flexibly adjusted with the movable adjustment plate 3, which can make the contact between the fender and the hull and platform more uniform, avoiding excessive local compression, uneven wear, or concentrated force due to position deviation. This effectively reduces abnormal wear of the mounting plate 1 and auxiliary rings 11. At the same time, the adjustable design can adapt to different berthing conditions and docking scenarios, improving the versatility of the device. In later maintenance, the position can also be finely adjusted to optimize the stress state, extend the overall service life, and ensure stable and reliable anti-collision buffering effect. When the fender airbag 4 is in operation, the auxiliary ring 11 will drive the fender airbag 4 to move and buffer. The fender airbag 4 will drive the connecting belt ring 8 to elastically deform and contract through the buffering force. The connecting belt ring 8 will drive the hinge block 7 to move through the contraction force. The hinge block 7 is hinged to the sliding rod 6, thereby driving the sliding rod 6 to move. The sliding rod 6 will slide along the inside of the fixed shell 5. The sliding rod 6 will compress the spring between the sliding rod and the fixed shell 5, thereby improving the working effect of the equipment. It can achieve multi-stage energy absorption and uniform force distribution. The sliding rod 6, through elastic contraction, will work with the main body of the fender airbag 4 to provide large deformation flexible buffer and absorb the main impact kinetic energy. The outer auxiliary ring 11 will share the instantaneous impact force and reduce direct friction and scratching. The auxiliary ring 11 will assist in restraint and disperse stress. The three work together to avoid overload of a single structure, greatly reduce the impact peak, protect the hull and platform structure, reduce local damage to the fender airbag 4, and improve the overall collision protection reliability and service life.

[0028] Example 2: Please see Figures 4-5 Based on the above embodiments, in another embodiment of the present invention, the drilling vessel rubber fender device further includes an anti-fall mechanism 12 installed on the movable adjustment plate 3, which is used to prevent the fender airbag 4 from shifting during buffering. The anti-fall mechanism 12 includes a positioning plate 121 mounted on the movable adjustment plate 3, a rotating rod 122 mounted inside the positioning plate 121, a positioning rod 123 mounted on the rotating rod 122 for positioning, a gear 124 mounted on the rotating rod 122, and a rack 125 mounted on the sliding rod 6. The positioning rod 123 contacts the outer wall of the movable adjustment plate 3, the inside of the positioning rod 123 contacts the outer wall of the fender airbag 4, the gear 124 meshes with the rack 125, and the side of the rack 125 away from the gear 124 contacts the outer wall of the movable adjustment plate 3.

[0029] The drilling vessel rubber fender also includes an automatic tightening mechanism installed on the movable adjustment plate 3, which is used to automatically tighten the fender airbag 4 when it is loose. The automatic tightening mechanism includes an electric turntable 126 mounted on the movable adjustment plate 3, a winding chain 127 mounted on the electric turntable 126, and a connecting block 128 mounted on the adjustment ring 9.

[0030] The side of the winding chain 127 away from the electric turntable 126 is fixedly installed with the connecting block 128. The electric turntable 126 tightens the winding chain 127 by rotating clockwise.

[0031] In this embodiment, during operation: When the fender airbag 4 is activated, the fender airbag 4 causes the sliding rod 6 to retract. The sliding rod 6 then causes the rack 125 to shift. This shift occurs because the rack 125 meshes with the gear 124. Simultaneously, the rack 125 shifts along the teeth of the gear 124, causing the gear 124 to rotate by a certain distance. This rotation of the gear 124 causes the rotating rod 122 to rotate, moving it toward the position of the fender airbag 4. At this time, the rotating rod 122 causes the positioning rod 123 to move toward... Rotate in the direction of the fender airbag 4, and the positioning rod 123 rotates close to the fender airbag 4 for positioning. This ensures that the fender airbag 4 can always maintain a stable fit under the conditions of frequent berthing of the drilling ship and repeated impacts from waves, preventing displacement, rollover or even detachment due to violent collisions. It can ensure that the impact force is evenly distributed, without local suspension or excessive compression, effectively protecting the fender body and the hull structure from scratch damage. At the same time, it eliminates the need for frequent reset and adjustment, improves operational safety and equipment reliability, and ensures continuous and stable berthing operations at sea. During berthing, the fender airbag 4 may become loose. In this case, the electric turntable 126 on the movable adjustment plate 3 will be activated. The electric turntable 126 will rotate clockwise, which will drive the winding chain 127 to wind up. The winding chain 127 will drive the connecting block 128 to wind up, and the connecting block 128 will drive the adjusting ring 9 to move and tighten, so that the adjusting ring 9 is close to the corresponding position and remains taut after installation. This prevents loosening, shaking or displacement during wave impact and repeated berthing. After tightening, the overall structure is stronger, and the force can be quickly and evenly transmitted during a collision. This prevents local loosening that could lead to uneven wear, delamination or chain slippage, improves the buffer response efficiency, ensures stable and reliable anti-collision performance, reduces the risk of damage under high-load conditions at sea, extends service life and reduces maintenance frequency.

[0032] Example 3: Please see Figures 6-7 Based on the above embodiments, in another embodiment of the present invention, the drilling vessel rubber fender device further includes an anti-rewinding mechanism 13 installed on the fixed shell 5 to prevent the electric turntable 126 from loosening when tightening. The anti-rewinding mechanism 13 includes a rotating rod 132 mounted on the fixed housing 5, a pulley 133 mounted on the rotating rod 132, a long plate 134 mounted on the fixed housing 5, and a trapezoidal block 131 mounted on the electric turntable 126. The outer wall of the trapezoidal block 131 is opened on an inclined surface. The circumferential surface of the pulley 133 is in contact with the outer wall of the electric turntable 126. The outer wall of the long plate 134 is in contact with the rotating rod 132. A torsion spring is provided between the rotating rod 132 and the fixed housing 5.

[0033] The drilling vessel rubber fender system also includes a linkage mechanism installed on the fender airbag 4 for linkage when the drilling vessel is impacted; The connecting mechanism includes a long plate 134 mounted on the fender airbag 4, a mounting block 135 mounted on the long plate 134, a centering plate 136 mounted inside the mounting block 135, a connecting rod 137 mounted on the centering plate 136, and a telescopic sleeve 138 mounted on the long plate 134.

[0034] A torsion spring is provided between the mounting block 135 and the center plate 136. The connecting rod 137 contacts the outer wall of the mounting block 135 and the auxiliary ring 11. The end of the telescopic sleeve 138 away from the long plate 134 is fixedly connected to the auxiliary ring 11. The inside of the telescopic sleeve 138 contacts the outer wall of the tightening chain 10.

[0035] In this embodiment, during tensioning, to prevent the electric turntable 126 from rewinding, the rotation of the electric turntable 126 will cause the trapezoidal block 131 to rotate synchronously. The trapezoidal block 131 will cause the inclined surface to rotate along the position of the pulley 133. The rotation of the trapezoidal block 131 will cause the inclined surface to contact the circumferential surface of the pulley 133. At this time, the pulley 133 will be driven to rotate through the inclined surface. The pulley 133 will drive the rotating rod 132 to rotate. When the rotating rod 132 rotates, it will be limited by the long plate 134. The rotation of the pulley 133 will cause... The internal torsion spring rotates. When the pulley 133 leaves the inclined surface of the trapezoidal block 131, it will be reset by the torsion spring between the rotating rod 132 and the fixed shell 5. The rotation of the rotating rod 132 will drive the pulley 133 to reset, thereby realizing multi-stage anti-coiling damping. When the impact rebounds, there will be reverse uncoiling, slippage and retreat, ensuring that the entire fender device is always in a stable and taut state. Under the repeated impact of the waves, it can prevent the structure from loosening and shifting, maintain uniform force, improve the reliability of the work, reduce frequent adjustments, and ensure the continuous safety of the drilling ship's berthing operation. When the fender airbag 4 is in operation, the auxiliary ring 11 first relieves the pressure on the drilling vessel. The auxiliary ring 11 will deform under pressure and move inwards. This movement of the auxiliary ring 11 will cause the connecting rod 137 to rotate. The connecting rod 137 rotates along the bottom of the mounting block 135, thereby simultaneously causing the centering plate 136 to rotate through its connection with the axis of the centering plate 136. The rotating centering plate 136 will move closer to the circumference of the auxiliary ring 11, thus limiting the movement of the auxiliary ring 11. The telescopic sleeve... The auxiliary ring 11 is stretched and contracted to prevent the tightening chains 10 from colliding with each other, thereby greatly improving the working efficiency of the auxiliary ring 11. This ensures that each tire maintains a reasonable distance and is evenly distributed on the outside of the fender, avoiding loss of buffer space due to collision, compression, and overlapping. This ensures that each tire can participate in energy absorption and collision protection, while preventing excessive tire compression that could cause rubber cracking and steel wire deformation. At the same time, it prevents the chains from breaking and falling off due to uneven stress caused by the tires gathering together, effectively improving the overall protection stability, reducing equipment damage, and ensuring the safe berthing of the drilling vessel.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rubber fender device for a drilling vessel, comprising a mounting plate (1), said mounting plate (1) being used for quick installation and removal from the outer wall of the drilling vessel, characterized in that, The drilling vessel rubber fender device also includes an adaptive adjustment mechanism installed on the mounting plate (1); The adaptive adjustment mechanism includes an adjustment rail (2) mounted on the mounting plate (1) for displacement, a movable adjustment plate (3) mounted on the movable end of the adjustment rail (2) for rapid adjustment, a fender airbag (4) mounted on the movable adjustment plate (3) for preventing the drilling vessel from capsizing, an adjustment ring (9) mounted on the fender airbag (4) for connection and positioning, a tightening chain (10) mounted on the adjustment ring (9), and an auxiliary ring (12) mounted on the tightening chain (10) for increasing buoyancy. 1) The movable adjustment plate (3) is equipped with a self-sensing device. The tightening chain (10) is in contact with the outer wall of the fender airbag (4). The tightening chain (10) is used to prevent the auxiliary ring (11) from detaching and shaking. The outer wall of the auxiliary ring (11) is in contact with the outer wall of the fender airbag (4). The auxiliary ring (11) is made of high elastic rubber material with low density and excellent aging resistance in seawater environment. The adjustment ring (9) is equipped with a two-stage fine adjustment knob to adjust the tightness of the tightening chain (10) to ensure the stability of the drilling ship during operation.

2. The drilling vessel rubber fender device according to claim 1, characterized in that: The drilling vessel rubber fender device also includes a buffer mechanism installed on the movable adjustment plate (3) to improve the overall protection mechanism of the fender airbag (4); The buffer mechanism includes a fixed shell (5) mounted on the movable adjustment plate (3), a sliding rod (6) mounted inside the fixed shell (5), a hinge block (7) mounted on the sliding rod (6), and a connecting belt ring (8) mounted inside the hinge block (7).

3. The drilling vessel rubber fender device according to claim 2, characterized in that: A spring is provided between the fixed shell (5) and the sliding rod (6), the inside of the connecting belt ring (8) is in contact with the outer wall of the fender airbag (4), and the connecting belt ring (8) is in contact with the outer wall of the tightening chain (10).

4. The drilling vessel rubber fender device according to claim 3, characterized in that: The drilling vessel rubber fender device also includes an anti-fall mechanism (12) installed on the movable adjustment plate (3) to prevent the fender airbag (4) from shifting during buffering; The anti-fall mechanism (12) includes a positioning plate (121) installed on the movable adjustment plate (3), a rotating rod (122) installed inside the positioning plate (121), a positioning rod (123) installed on the rotating rod (122) for positioning, a gear (124) installed on the rotating rod (122), and a rack (125) installed on the sliding rod (6). The positioning rod (123) contacts the outer wall of the movable adjustment plate (3), the inside of the positioning rod (123) contacts the outer wall of the fender airbag (4), the gear (124) meshes with the rack (125), and the side of the rack (125) away from the gear (124) contacts the outer wall of the movable adjustment plate (3).

5. The drilling vessel rubber fender device according to claim 1, characterized in that: The drilling vessel rubber fender device also includes an automatic tightening mechanism installed on the movable adjustment plate (3) for automatically tightening when the fender airbag (4) is loose; The automatic tightening mechanism includes an electric turntable (126) mounted on the movable adjustment plate (3), a winding chain (127) mounted on the electric turntable (126), and a connecting block (128) mounted on the adjustment ring (9).

6. The drilling vessel rubber fender device according to claim 5, characterized in that: The winding chain (127) is fixedly installed on the side away from the electric turntable (126) and connected to the connecting block (128). The electric turntable (126) will tighten the winding chain (127) by rotating clockwise.

7. The drilling vessel rubber fender device according to claim 2, characterized in that: The drilling vessel rubber fender device also includes an anti-rewinding mechanism (13) installed on the fixed shell (5) to prevent loosening when the electric turntable (126) is tightened; The anti-rewinding mechanism (13) includes a rotating rod (132) mounted on the fixed shell (5), a pulley (133) mounted on the rotating rod (132), a long plate (134) mounted on the fixed shell (5), and a trapezoidal block (131) mounted on the electric turntable (126). The outer wall of the trapezoidal block (131) is opened on an inclined surface. The circumferential surface of the pulley (133) is in contact with the outer wall of the electric turntable (126). The outer wall of the long plate (134) is in contact with the rotating rod (132). A torsion spring is provided between the rotating rod (132) and the fixed shell (5).

8. The drilling vessel rubber fender device according to claim 1, characterized in that: The drilling vessel rubber fender device also includes a connecting mechanism installed on the fender airbag (4) for connecting when the drilling vessel is hit; The connecting mechanism includes a long plate (134) mounted on the fender airbag (4), a mounting block (135) mounted on the long plate (134), a centering plate (136) mounted inside the mounting block (135), a connecting rod (137) mounted on the centering plate (136), and a telescopic sleeve (138) mounted on the long plate (134).

9. The drilling vessel rubber fender device according to claim 8, characterized in that: A torsion spring is provided between the mounting block (135) and the center plate (136). The connecting rod (137) contacts the outer wall of the mounting block (135). The connecting rod (137) contacts the auxiliary ring (11). The end of the telescopic sleeve (138) away from the long plate (134) is fixedly connected to the auxiliary ring (11). The interior of the telescopic sleeve (138) contacts the outer wall of the tightening chain (10).

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