Ocean platform pile leg protection mechanism

Abstract

The invention discloses an ocean platform pile leg protection mechanism, and belongs to the technical field of ocean platform pile leg protection, the ocean platform pile leg protection mechanism comprises a pile leg body, a mounting plate is mounted on the outer side of the pile leg body through bolts, and a movable plate is slidably mounted on the inner side of a sliding groove; the anti-collision plate is fixed to the side face of the fixing plate, the surface of the anti-collision plate is provided with a hole structure, the anti-collision plate is made of a basic material formed by combining a flexible EVA material and a glass fiber reinforced composite material, the rigid limitation of a traditional steel or concrete anti-collision facility is broken through, and graded absorption of energy is achieved; the anti-collision buffering mechanism is arranged between the fixed plate and the movable plate, the anti-collision buffering mechanism is used for conducting dispersion and multi-stage buffering on impact force received by the anti-collision buffering mechanism, the impact force is reduced, and through mutual cooperation of the anti-collision plate and the buffering mechanism which are made of composite materials, step-by-step energy consumption, multi-stage energy absorption and self-adaptive protection are achieved. According to the ocean platform pile leg protection mechanism, the anti-collision plates exceed traditional steel and concrete facilities.

Description

Technical Field

[0001] This invention relates to the field of marine platform leg protection technology, specifically to a marine platform leg protection mechanism. Background Technology

[0002] With the development of bridges and water transport, the tonnage of ships and the density of traffic have increased, significantly raising the risk of impact on pile legs. Traditional steel anti-collision devices suffer from problems such as easy corrosion and high maintenance costs. Current pile leg protection mechanisms can absorb the impact energy of ships through material or structural design (such as floating bodies, steel pipe piers, energy dissipation elements, etc.), prolong the impact time, and reduce the risk of pile leg damage. For example, a pile leg protection structure for offshore platforms with announcement number CN115324014B includes a traveling sleeve, several arc-shaped anti-collision plates, several sets of rollers, and several sets of force-bearing water spray components. Each arc-shaped anti-collision plate is connected to the traveling sleeve through several sets of elastic connectors. The device is connected in several ways. Each roller has a fan blade above it, and each set of force-bearing water spray components includes a fixed pipe and a piston. A water pumping pipe is connected to the bottom of the fixed pipe, and a diversion water spraying pipe is connected to the top of the fixed pipe. When the floating heavy object impacts the device, the movement of the arc-shaped anti-collision plate drives the piston in the force-bearing water spray component to move, thereby squeezing the seawater in the fixed pipe and causing the seawater to be sprayed out from the diversion water spraying pipe. The sprayed water then hits the fan blades used to drive the rollers, causing the two rollers on the drive arc-shaped anti-collision plate to rotate in the same direction. This causes the floating heavy object to be subjected to a bias force, which in turn changes the impact direction of the floating heavy object. For example, a marine platform protection and vibration reduction device with publication number CN103147428A belongs to the field of marine structure technology. It includes a "scissor-type" displacement amplification device, laminated rubber bearings, an upper support platform, a middle support platform, a lower support platform, a limiting device, an icebreaking cone, a grooved connecting plate, and bolts. This device is axially symmetrical about the middle support platform and about the pile legs. This device can reduce the horizontal stiffness of the cone with minimal reduction, while also possessing good restoring force and energy dissipation vibration reduction performance. It can effectively reduce the impact of ice and wave excitation on the structure's compression, friction, and vibration, reduce the platform's response, and fundamentally solve the problem of ice-induced vibration of marine platforms. However, the above-mentioned protective mechanism still has the following drawbacks in actual use: 1. Traditional piling leg protection mechanisms are mostly directly subjected to the impact force of ships during use. Therefore, the anti-collision devices are prone to breakage and damage. They lack a structure to absorb and dissipate the impact force, which will increase the damage to the hull and lead to frequent replacement of the anti-collision devices. 2. Furthermore, most pile legs are rectangular or circular, and most anti-collision devices of the same type can only adapt to pile legs with the same structure, thus having poor adaptability and requiring the production of different types of anti-collision devices.

[0003] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing pile leg protection mechanisms. Summary of the Invention

[0004] The purpose of this invention is to provide a marine platform leg protection mechanism to solve the problem that traditional leg protection mechanisms mentioned in the background art lack a structure for absorbing and dissipating impact forces during use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a marine platform leg protection mechanism, comprising a leg body, an mounting plate being bolted to the outer side of the leg body, and a sliding groove being provided on the side of the mounting plate away from the leg body, a movable plate being slidably mounted on the inner side of the sliding groove, and a fixed plate being provided on the side of the movable plate. It also includes: a crash barrier, fixed to the side of the fixed plate, the surface of the crash barrier is provided with a perforated structure, and the crash barrier is made of flexible EVA material combined with glass fiber reinforced composite material as the basic material of the product, breaking through the rigidity limitation of traditional steel or concrete crash barriers and realizing energy graded absorption; The anti-collision buffer mechanism is set between the fixed plate and the movable plate. The anti-collision buffer mechanism disperses the impact force received by the object in multiple stages to reduce the impact force. Through the cooperation between the composite material anti-collision plate and the buffer mechanism, energy is consumed step by step, absorbed in multiple stages and adaptively protected.

[0006] Preferably, a connecting plate is provided on the side of the mounting plate near the pile leg body, and both the mounting plate and the connecting plate have arc-shaped structures on the sides that are close to each other, and the two fit together. At the same time, the mounting plate and the connecting plate are connected by bolts. The arc surface of the mounting plate is a concave structure, and the arc surface of the connecting plate is a convex structure. The installation of the mounting plate and the connecting plate facilitates the installation of the anti-collision device with the rectangular or circular pile leg.

[0007] Preferably, the movable plate forms a sliding structure through a groove and a mounting plate, and a float plate is fixed between the movable plate and the fixed plate. The float plate is pleated and made of the same material as the anti-collision plate. The float plate floats on the water surface and is located in the lower middle position of the anti-collision plate. The float plate allows the anti-collision device to automatically rise and fall with changes in water level.

[0008] Preferably, the anti-collision buffer mechanism includes a fixed block fixed to the fixed plate, and the side of the fixed block near the movable plate is an inclined structure. The anti-collision buffer mechanism and the pile leg body form a relative lifting structure. When the anti-collision plate is impacted, it can drive the fixed block to move closer to the guide roller.

[0009] Preferably, the fixed block and the guide roller are at the same height, and the guide roller is rotatably mounted on the side of the movable plate. The fixed block and the guide roller are distributed at equal angles and are both above the water surface. After the inclined surface of the fixed block contacts the guide roller, it drives the guide roller to rotate. The anti-collision device can be raised by guiding the inclined surface of the fixed block.

[0010] Preferably, the anti-collision buffer mechanism further includes a fixed rod fixed to the fixed plate, and a piston plate is connected to the end of the fixed rod away from the fixed plate. The piston plate is initially located in the middle position of the fixed cylinder. When the anti-collision plate is impacted, the fixed rod can be driven to slide inside the fixed cylinder by the fixed plate.

[0011] Preferably, the edge of the piston plate slides against the inner wall of the fixed cylinder, and the fixed rod and the fixed cylinder are elastically slidably connected. The fixed cylinder is fixed to the side of the movable plate, and the fixed rod can drive the piston plate to move inside the fixed cylinder.

[0012] Preferably, the adjacent fixed cylinders are interconnected by a gas delivery hose, and the movable plates and anti-collision plates that are relatively distributed move in the same direction. At the same time, the anti-collision plates, fixed rods and fixed cylinders are all set at equal angles, and the edges of adjacent anti-collision plates are in close contact. After the piston plate moves, it compresses the gas in the fixed cylinder and transmits it through the gas delivery hose.

[0013] Compared with existing technologies, the beneficial effects of this invention are as follows: the composite material anti-collision plate of this marine platform leg protection mechanism comprehensively surpasses traditional steel and concrete facilities in terms of energy absorption efficiency (multi-level buffering, energy consumption rate exceeding 60%), durability (corrosion resistance, lifespan exceeding 30 years), weight and installation (lightweight, modular construction), economy (over 40% lower total cost), and environmental integration (customized appearance and warning function). Specific details are as follows: 1. The installation plate and connecting plate make it easy to connect the anti-collision device to rectangular or circular pile legs, thus making it highly adaptable. The floating plate can drive the anti-collision plate to rise and fall synchronously according to the water level, and the protection position can be adaptively adjusted. Since the floating plate is pleated, it can deform after the anti-collision plate is hit and can automatically recover, which can also play a buffering role. 2. When the anti-collision plate is impacted, it causes the fixed block to contact the guide roller. Since the side of the fixed block that contacts the guide roller is inclined, and through the rotation of the guide roller, it exerts an upward force on the fixed block, which in turn drives the entire anti-collision buffer mechanism to move upward, thereby consuming the impact force and reducing the damage to the ship. 3. When one of the anti-collision plates is impacted and moves closer to the pile leg body, it can absorb part of the impact force and play a buffering role. The gas in the fixed cylinder can be transmitted to the other fixed cylinders through the gas supply hose, so that the other anti-collision plates can move a certain distance away from the pile leg body. Through the resistance between the anti-collision plate and the water, the impact force can be further absorbed, and the buffering effect can be improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 This is a schematic cross-sectional view of the anti-collision plate of the present invention; Figure 4 This is a schematic diagram of the floating plate structure of the present invention; Figure 5 This is a schematic diagram of the separate structure of the mounting plate and connecting plate of the present invention; Figure 6 This is a schematic diagram of the fixing block and guide roller structure of the present invention; Figure 7 This is a schematic cross-sectional view of the fixed cylinder structure of the present invention; Figure 8 This is a top view of the fixed cylinder structure of the present invention.

[0015] In the diagram: 1. Pile leg body; 2. Mounting plate; 3. Connecting plate; 4. Slide groove; 5. Movable plate; 6. Floating plate; 7. Fixed plate; 8. Anti-collision plate; 9. Fixed block; 10. Guide roller; 11. Fixed rod; 12. Piston plate; 13. Fixed cylinder; 14. Gas delivery hose. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-8 The present invention provides the following technical solution: Example 1: To address the problems existing in the prior art, this example provides the following technical solution: a marine platform leg protection mechanism, comprising a leg body 1, an mounting plate 2 bolted to the outer side of the leg body 1, a groove 4 on the side of the mounting plate 2 away from the leg body 1, a movable plate 5 slidably mounted inside the groove 4, and a fixed plate 7 on the side of the movable plate 5; further comprising: a crash barrier 8 fixed to the side of the fixed plate 7, the surface of the crash barrier 8 having a perforated structure, and the crash barrier 8 using a combination of flexible EVA material and glass fiber reinforced composite material as the basic material, breaking through the rigidity limitations of traditional steel or concrete crash barriers and achieving graded energy absorption; and a crash buffer mechanism positioned between the fixed plate 7 and the movable plate 5, which disperses and buffers the impact force received, reducing the impact force. Through the cooperation of the composite material crash barrier 8 and the buffer mechanism, energy is consumed stepwise, absorbed in multiple stages, and adaptively protected.

[0018] Most existing pile legs are rectangular or circular, and most anti-collision devices of the same type can only adapt to pile legs with the same structure, thus exhibiting poor adaptability. Therefore, it is necessary to produce different types of anti-collision devices, such as... Figures 1-2 , Figure 5 and Figure 7 As shown, a connecting plate 3 is provided on the side of the mounting plate 2 near the pile leg body 1. Both the mounting plate 2 and the connecting plate 3 have curved surfaces on their adjacent sides, and they fit together. The mounting plate 2 and the connecting plate 3 are connected by bolts. The curved surface of the mounting plate 2 is concave, while the curved surface of the connecting plate 3 is convex. The movable plate 5 forms a sliding structure with the mounting plate 2 via a groove 4. A float plate 6 is fixed between the movable plate 5 and the fixed plate 7. The float plate 6 is pleated and made of the same material as the anti-collision plate 8. The float plate 6 floats on the water surface and is positioned in the lower middle position of the anti-collision plate 8. The mounting plate 2 can first be installed on the side of the pile leg body 1 using bolts. When the pile leg body 1 has a rectangular structure, the mounting plate 2 fits snugly against the side of the pile leg body 1 via the connecting plate 3, ensuring a snug fit. For flatness, when the pile leg body 1 is a circular structure, the connecting plate 3 can be removed from the inside of the mounting plate 2, allowing the arc surface of the inner side of the mounting plate 2 to contact the side of the pile leg body 1, which can improve the contact range. Therefore, it can adapt to different types of pile leg bodies 1. After the installation of the anti-collision device is completed, the float plate 6 can make the upper part of the anti-collision plate 8 above the water surface and the lower part underwater. Therefore, it can expand the protection range after being hit. According to the change of water level, it can drive the movable plate 5 to slide in the chute 4, and drive the anti-collision plate 8 to rise and fall synchronously, and adaptively adjust the protection position. Since the float plate 6 is pleated, it not only has the function of floating, but also can drive the float plate 6 to deform after the anti-collision plate 8 is hit and can automatically recover, so it can also play a buffering role.

[0019] Example 2: Existing pile leg protection mechanisms mostly directly bear the impact force of ships during use, making the anti-collision devices prone to breakage and damage. They lack structures to absorb and dissipate impact force, further increasing damage to the hull and leading to frequent replacements of the anti-collision devices. Therefore, this example addresses this issue through the following technical solution: Figure 4 and Figure 6 As shown, the anti-collision buffer mechanism includes a fixed block 9 fixed on the fixed plate 7, and the side of the fixed block 9 closest to the movable plate 5 is an inclined structure. The anti-collision buffer mechanism and the pile leg body 1 form a relative lifting structure. The fixed block 9 and the guide roller 10 are at the same height, and the guide roller 10 is rotatably set on the side of the movable plate 5. The fixed block 9 and the guide roller 10 are distributed at equal angles, and both the fixed block 9 and the guide roller 10 are above the water surface. When the anti-collision plate 8 is impacted, it drives the fixed plate 7 to move closer to the movable plate 5, and drives the fixed block 9 to contact the guide roller 10. Since the side of the fixed block 9 that contacts the guide roller 10 is an inclined surface, and through the rotation of the guide roller 10, there is an upward force on the fixed block 9, which in turn drives the entire anti-collision buffer mechanism to move upward, consuming the impact force and reducing the damage to the ship.

[0020] Example 3: Unlike Example 1, this example includes a further anti-collision buffer mechanism, such as... Figure 3 and Figures 7-8 As shown, the anti-collision buffer mechanism also includes a fixing rod 11 fixed to the fixing plate 7, and a piston plate 12 is connected to the end of the fixing rod 11 away from the fixing plate 7. The piston plate 12 is initially located in the middle position of the fixing cylinder 13. The edge of the piston plate 12 slides against the inner wall of the fixing cylinder 13, and the fixing rod 11 and the fixing cylinder 13 are elastically slidably connected. The fixing cylinder 13 is fixed to the side of the movable plate 5. Adjacent fixing cylinders 13 are interconnected through air hoses 14, and the movable plate 5 and the anti-collision plate 8, which are relatively distributed, move in the same direction. At the same time, the anti-collision plate 8, the fixing rod 11, and the fixing cylinder 13 are all set at equal angles, and the edges of adjacent anti-collision plates 8 are in contact. When the fixing plate 7 moves closer to the movable plate 5... When the fixed rod 11 slides within the fixed cylinder 13, it pushes the piston plate 12 to move, transmitting the gas in one of the fixed cylinders 13 to the other fixed cylinders 13 through the gas delivery hose 14. Therefore, when one of the anti-collision plates 8 is impacted and moves closer to the pile leg body 1, it can absorb part of the impact force and play a buffering role. The other anti-collision plates 8 can move a certain distance away from the pile leg body 1. Through the resistance between the anti-collision plates 8 and the water, they can further absorb the impact force, improve the buffering effect, and reduce the damage caused by the ship to the anti-collision device. When the anti-collision plates 8 are not impacted, through the elasticity of the spring, all the anti-collision plates 8 can be driven to return to their original positions and re-protect the pile leg body 1.

[0021] 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A marine platform leg protection mechanism, comprising a leg body (1), wherein an mounting plate (2) is bolted to the outer side of the leg body (1), and a sliding groove (4) is provided on the side of the mounting plate (2) away from the leg body (1), a movable plate (5) is slidably mounted on the inner side of the sliding groove (4), and a fixed plate (7) is provided on the side of the movable plate (5). Its features are, Also includes: The anti-collision plate (8) is fixed to the side of the fixed plate (7). The surface of the anti-collision plate (8) is provided with a hole structure. The anti-collision plate (8) is made of flexible EVA material and glass fiber reinforced composite material as the basic material of the product, breaking through the rigidity limitation of traditional steel or concrete anti-collision facilities and realizing energy graded absorption. The anti-collision buffer mechanism is set between the fixed plate (7) and the movable plate (5). The anti-collision buffer mechanism disperses the impact force it receives in multiple stages to reduce the impact force. Through the cooperation of the composite material anti-collision plate (8) and the buffer mechanism, energy is consumed step by step, absorbed in multiple stages and adaptively protected.

2. The marine platform leg protection mechanism according to claim 1, characterized in that: The mounting plate (2) is provided with a connecting plate (3) on the side close to the pile leg body (1). The sides of the mounting plate (2) and the connecting plate (3) that are close to each other are both arc-shaped structures and fit together. The mounting plate (2) and the connecting plate (3) are connected by bolts. The arc surface of the mounting plate (2) is a concave structure, and the arc surface of the connecting plate (3) is a convex structure.

3. The marine platform leg protection mechanism according to claim 1, characterized in that: The movable plate (5) forms a sliding structure through the sliding groove (4) and the mounting plate (2), and a float plate (6) is fixed between the movable plate (5) and the fixed plate (7). The float plate (6) is pleated, and the float plate (6) and the anti-collision plate (8) are made of the same material. The float plate (6) floats on the water surface and is located in the lower middle position of the anti-collision plate (8).

4. The marine platform leg protection mechanism according to claim 1, characterized in that: The anti-collision buffer mechanism includes a fixed block (9) fixed on a fixed plate (7), and the side of the fixed block (9) near the movable plate (5) is a sloping structure. The anti-collision buffer mechanism and the pile leg body (1) form a relative lifting structure.

5. The marine platform leg protection mechanism according to claim 4, characterized in that: The fixed block (9) and the guide roller (10) are at the same height, and the guide roller (10) is rotatably set on the side of the movable plate (5). The fixed block (9) and the guide roller (10) are distributed at equal angles, and the fixed block (9) and the guide roller (10) are both above the water surface.

6. The marine platform leg protection mechanism according to claim 1, characterized in that: The anti-collision buffer mechanism also includes a fixing rod (11) fixed on the fixing plate (7), and a piston plate (12) is connected to one end of the fixing rod (11) away from the fixing plate (7), and the piston plate (12) is initially in the middle position of the fixing cylinder (13).

7. A marine platform leg protection mechanism according to claim 6, characterized in that: The piston plate (12) slides against the inner wall of the fixed cylinder (13) at its edge, and the fixed rod (11) and the fixed cylinder (13) are elastically slidably connected, and the fixed cylinder (13) is fixed to the side of the movable plate (5).

8. A marine platform leg protection mechanism according to claim 7, characterized in that: The adjacent fixed cylinders (13) are connected to each other by air supply hoses (14), and the movable plates (5) and anti-collision plates (8) that are distributed opposite to each other move in the same direction. At the same time, the anti-collision plates (8), fixed rods (11) and fixed cylinders (13) are all set at equal angles, and the edges of the adjacent anti-collision plates (8) are in close contact.

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