Vertical composite ballast type foam fender device

Abstract

The utility model relates to the technical field of port, wharf and ship protection, in particular to a vertical composite ballast type foam fender device which solves the problem that a traditional fender device is insufficient in stability, lowers the gravity center through balance weight steel grit and guarantees the structural stability. The central pipe core is axially distributed in the outer shell, and a sealing cavity filled with counterweight steel grit is formed in the central pipe core; the closed-cell foam core body is arranged in an interlayer between the outer shell and the central pipe core; the upper flange is arranged at the top end of the outer shell and is connected with the upper end of the central pipe core; and the lower flange is arranged at the bottom end of the outer shell and is connected with the lower end of the central pipe core.

Description

TECHNICAL FIELD

[0001] The utility model relates to port, wharf and ship protection technical field especially is involved in a vertical compound ballast formula foam fender device. BACKGROUND

[0002] In the operation of the port and wharf, a large impact force will be generated when the ship is berthed, and if not protected, it will cause serious damage to the ship and wharf facilities. Although the traditional rubber fender is widely used, it has some limitations, such as heavy weight, inconvenient installation, limited weather resistance, etc. With the increasing demand for safety and durability of port facilities, and the increasing demand for new environmentally friendly and efficient protection materials, floating foam fender has gradually attracted attention. Floating foam fender has the advantages of light weight, large buoyancy, strong corrosion resistance, etc., which can effectively absorb the impact energy of the ship when it is berthed, and protect the ship and wharf structure.

[0003] However, the floating foam fender on the market still has some shortcomings in structure design and use function, because most of them are foam material, the center of gravity is in the middle, and it is easy to float horizontally in seawater (ideal state is vertical suspension in seawater), which leads to insufficient structural stability, poor adaptability to ships and wharfs, etc. It needs to be further optimized and improved. UTILITY MODEL CONTENTS

[0004] The utility model provides a vertical compound ballast formula foam fender device, solves the problem of insufficient stability of the traditional fender device, reduces the center of gravity by counterweight steel sand, and ensures the structural stability.

[0005] The utility model is realized by the following technical solutions:

[0006] A vertical compound ballast formula foam fender device, comprising,

[0007] The outer shell is made of high-strength composite material;

[0008] The center tube core is axially distributed in the outer shell, and the inside is provided with a sealed cavity filled with counterweight steel sand;

[0009] The closed-cell foam core is arranged in the interlayer between the outer shell and the center tube core;

[0010] The upper flange is arranged at the top end of the outer shell and connected with the upper end of the center tube core;

[0011] The lower flange is arranged at the bottom end of the outer shell and connected with the lower end of the center tube core.

[0012] Further, the bottom end of the center tube core is provided with a lower sealing plate, the center tube core is provided with an upper sealing plate, and the sealed cavity filled with counterweight steel sand is formed between the upper sealing plate and the lower sealing plate.

[0013] Further, the height of the sealing cavity accounts for 2 / 3-9 / 10 of the height of the center tube core.

[0014] Further, the top end of the outer shell body is provided with an opening, the upper end of the center tube core is provided with an end plate, the end plate is provided with a pipe opening, and the outer wall of the pipe opening is connected with the opening of the outer shell body.

[0015] The bottom interface of the upper flange is overlapped with the pipe opening, and the bottom of the upper flange is connected with the end plate in an integrated manner through bolts penetrating the side wall of the outer shell body.

[0016] The upper end of the lower flange is connected with the lower sealing plate in an integrated manner through bolts penetrating the side wall of the outer shell body.

[0017] Further, the pipe opening is provided with a sealing plate through a bolt assembly.

[0018] Further, the outer end of the upper flange and the lower flange are both provided with a cover plate, and the cover plate of the upper flange is provided with a lifting ring.

[0019] Further, the bottom of the cover plate of the lower flange is provided with a fixing shaft, a plurality of counterweight steel plates are assembled on the fixing shaft, the bottom end of the fixing shaft is provided with a locking nut, and a protective cover for isolating the counterweight steel plates from the outside is also fixed on the cover plate.

[0020] Further, the outer shell body is made of rubber, polyurethane or polyurea material.

[0021] The beneficial effects achieved by the utility model compared with the prior art are as follows:

[0022] 1. Through reasonable design of the center tube core and the counterweight steel sand, the gravity center position of the fender can be effectively adjusted, the gravity center position is lowered, the fender can maintain a stable vertical posture in water, and the stability and reliability of the fender when the ship is berthed are improved.

[0023] 2. The closed-cell foam core has good elasticity and porosity, can effectively absorb and disperse impact energy when the ship collides, and protects the ship and the wharf facilities from being damaged.

[0024] The center tube core cooperates with the counterweight steel sand to increase the strength of the center tube core, ensure the structural strength and stability, and prevent the fender from being deformed or damaged when the fender is impacted by the ship.

[0025] 3. The outer shell body is made of high-strength composite material, has good weather resistance and corrosion resistance, can be used in harsh marine environments for a long time, reduces the cost of maintenance and replacement, has little pollution to the environment during production and use, and conforms to the modern environmental protection concept.

[0026] 4. The upper and lower flanges are easy to install and disassemble, have a simple structure, internal components are not easily damaged, and maintenance costs are low;

[0027] 5. Multiple counterweight steel plates are installed at the bottom of the cover plate of the lower flange to further lower the center of gravity, improve the stability and reliability of the fender when the ship is berthed, and the counterweight steel plates can be added or removed as needed. Attached Figure Description

[0028] Fig. 1 This is a schematic diagram of the vertical composite ballast foam fender device described in this utility model;

[0029] Fig. 2 This is a schematic diagram showing the cooperation between the counterweight steel plate and the fixed shaft described in this utility model;

[0030] In the diagram: 1. Outer shell, 2. Central core, 3. Closed-cell foam core, 4. Upper flange, 5. Lower flange, 6. Lower sealing plate, 7. Upper sealing plate, 8. Counterweight steel grit, 9. Pipe opening, 10. Sealing plate, 11. Fixed shaft, 12. Counterweight steel plate, 13. Locking nut, 14. Protective cover. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0032] In the description of the utility model, it should be understood that the terms "front", "rear", "up", "down", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] like Figs. 1-2 As shown, this embodiment discloses a vertical composite ballast foam fender device, which includes an outer shell 1, a central core 2, a closed-cell foam core 3, an upper flange 4, and a lower flange 5.

[0034] The outer shell 1 is the outer protective structure of the fender product, usually made of high-strength composite materials such as rubber, polyurethane or polyurea materials (FRP) etc. It has good weather resistance, corrosion resistance and impact resistance, which can effectively protect the closed-cell foam core 3 and other components inside from the erosion of the external environment and the direct damage of ship impact. The surface of the outer shell 1 can be treated to prevent slipping to increase the friction with the ship and prevent the ship from sliding when docking.

[0035] The center tube core 2 is axially distributed in the center position inside the outer shell 1, usually made of high-strength steel. Its main function is to provide structural strength and stability to the fender product, preventing the fender from deforming or being damaged when impacted by a ship. The center tube core 2 can withstand large axial and radial loads, and can also serve as a container for the weighted steel sand 8 to adjust the center of gravity of the fender. The center tube core 2 is internally provided with a sealed cavity filled with weighted steel sand 8, specifically, a lower sealing plate 6 is welded at the bottom end of the center tube core 2, and an upper sealing plate 7 is installed inside the center tube core 2, forming a sealed cavity filled with weighted steel sand 8 between the upper sealing plate 7 and the lower sealing plate 6. In this embodiment, the height of the sealed cavity accounts for 9 / 10 of the height of the center tube core 2. The weighted steel sand 8 is filled in the sealed cavity of the center tube core 2, and by adjusting the filling amount of the steel sand, the center of gravity position and the buoyancy of the fender can be accurately adjusted. Reasonable weighting can make the fender maintain a stable vertical posture in water, ensuring that it can effectively absorb impact energy when the ship docks. At the same time, the weighted steel sand 8 can also increase the weight of the fender, improve its wind and wave resistance, and prevent the fender from drifting or overturning in adverse weather conditions.

[0036] The closed-cell foam core 3 is arranged in the interlayer between the outer shell 1 and the center tube core 2, and the closed-cell foam core 3 is the core part of the fender product, which is made of special foam materials such as polyurethane foam or polystyrene foam etc. These foam materials have high porosity and elasticity, which can effectively absorb and disperse impact energy when the ship impacts. The closed-cell structure makes the foam core have good water permeability, which can reduce the influence of water flow on the buoyancy of the fender, and also facilitates the self-cleaning and drainage of the foam core in water. In addition, the closed-cell foam core 3 is relatively light in weight, which can improve the floating performance of the fender and reduce the difficulty of installation and maintenance.

[0037] An opening is reserved at the top end of the outer shell 1 to facilitate the placement of the central tube core 2. An end plate is assembled at the upper end of the central tube core 2. A pipe mouth 9 extending outward is welded on the central hole of the end plate. The outer wall of the pipe mouth 9 is connected with the opening of the outer shell 1. A sealing plate 10 is installed on the inner wall of the pipe mouth 9 through a bolt assembly to prevent seawater from flowing into the central tube core 2. The upper flange 4 is arranged at the top end of the outer shell 1. The bottom interface of the upper flange 4 is overlapped with the pipe mouth 9. The bottom of the upper flange 4 is connected with the end plate in an integrated manner through bolts penetrating through the side wall of the outer shell 1. The lower flange 5 is arranged at the bottom end of the outer shell 1. The upper end of the lower flange 5 is connected with the lower sealing plate 6 in an integrated manner through bolts penetrating through the side wall of the outer shell 1. The upper flange 4 and the lower flange 5 tightly connect various components of the fender product to form an integrated whole. Meanwhile, the upper flange 4 and the lower flange 5 can also be connected with other connecting structures on the wharf or the ship to realize the installation and fixation of the fender product. The outer ends of the upper flange 4 and the lower flange 5 are both equipped with cover plates. The main function of the cover plates is to close the internal space of the fender product to prevent water and other impurities from entering and to protect the internal foam core and the counterweight steel sand 8. Meanwhile, the cover plates are also provided with mounting holes and connecting components for connection with other equipment or structures. For example, a lifting ring is arranged on the cover plate of the upper flange 4 to facilitate lifting. The bottom of the cover plate of the lower flange 5 is fixed with a fixed shaft 11. A plurality of counterweight steel plates 12 are assembled on the fixed shaft 11. A locking nut 13 is assembled at the bottom end of the fixed shaft 11. A protective cover 14 isolating the counterweight steel plates 12 from the outside is also fixed on the cover plate. The center of gravity is further lowered, and the stability and reliability of the fender when the ship is berthing are improved. The number of counterweight steel plates 12 can be increased or decreased according to requirements.

[0038] The main structure manufacturing process of the vertical composite ballast type foam fender device is as follows:

[0039] 1. Outer shell manufacturing: adopt mold forming process, lay composite materials such as rubber, polyurethane or polyurea materials in the mold according to design requirements, and obtain the outer shell after curing and forming. In the manufacturing process, attention should be paid to controlling the laying layers and quality of the composite materials to ensure the strength and surface quality of the outer shell.

[0040] 2. Closed-cell foam core preparation: select appropriate foam materials, and prepare closed-cell foam core through chemical foaming or physical foaming process. In the foaming process, the amount of foaming agent and foaming conditions should be controlled to obtain foam core with appropriate porosity and density.

[0041] 3. Central tube core processing: select high-strength steel materials, cut, weld and process according to the design size to make the central tube core. In the processing process, the size accuracy and surface quality of the central tube core should be ensured to connect with other components.

[0042] 4. Component assembly: Assemble the prepared outer shell, closed-cell foam core, center tube core, and weighted steel sand, etc.

[0043] The vertical composite ballast type foam fender device installation and use process is as follows:

[0044] 1. Preparation before installation: Before installing the fender product, clean and inspect the installation site of the wharf or ship to ensure that the installation site is flat, free of oil stains and debris. At the same time, prepare the tools and materials required for installation, such as bolts, nuts, gaskets, etc.

[0045] 2. Hoisting and positioning: Use a crane or other hoisting equipment to lift the fender product through the lifting ring, and then place it at the predetermined installation position. During hoisting, pay attention to protect the fender product to avoid collision and damage.

[0046] 3. Fixed installation: Align the upper flange and lower flange of the fender product with the connecting structure on the wharf or ship, and then fix it using bolts and nuts. During the fixing process, tighten the bolts according to the specified torque to ensure the firmness and sealing of the connection.

[0047] 4. Use and maintenance: After the fender product is put into use, regular inspection and maintenance should be carried out to check whether the appearance of the fender product is damaged, the bolts are loose, and the sealing rubber pad is aged, etc. If problems are found, repair or replace them in time to ensure the normal use and safety performance of the fender product.

[0048] The working principle of the vertical composite ballast type foam fender device is as follows:

[0049] When the ship is berthed, the ship contacts the fender product and generates an impact force. The closed-cell foam core first absorbs and disperses part of the impact energy, and its elastic deformation can effectively buffer the impact force of the ship. At the same time, the outer shell transmits the impact force to the center steel tube core, and the center steel tube core bears and disperses the impact force by virtue of its high strength and rigidity, preventing the fender product from deforming or being damaged. When the fender is impacted, the weighted steel sand adjusts the center of gravity of the fender to maintain the stability of the fender, so that it can better absorb impact energy. Throughout the process, the sealing rubber pad ensures the sealing of the fender product, preventing water and other impurities from entering the interior, and protecting the normal work of the internal components.

Claims

1. A vertical composite ballast type foam fender device, characterized in that, The utility model relates to a high-strength composite material outer shell, a center tube core, a closed-cell foam core, an upper flange and a lower flange. The outer shell is made of high-strength composite material. The center tube core is axially distributed in the outer shell and has a sealed cavity filled with heavy steel sand inside. The closed-cell foam core is arranged in the interlayer between the outer shell and the center tube core. The upper flange is arranged at the top end of the outer shell and connected with the upper end of the center tube core. The lower flange is arranged at the bottom end of the outer shell and connected with the lower end of the center tube core.

2. The vertically-composite ballasted foam fender apparatus of claim 1, wherein, The bottom end of the center tube core is provided with a lower sealing plate, and the center tube core is provided with an upper sealing plate inside.

3. The vertically-composite ballasted foam fender system of claim 2, wherein, The height of the sealed cavity accounts for 2 / 3-9 / 10 of the height of the center tube core.

4. The vertically-composite ballasted foam fender apparatus of claim 2, wherein, The top end of the outer shell is provided with an opening, the upper end of the center tube core is provided with an end plate, and the end plate is provided with a pipe opening. The bottom interface of the upper flange is overlapped with the pipe opening, and the bottom of the upper flange is connected with the end plate in an integrated manner through bolts penetrating the side wall of the outer shell. The upper end of the lower flange is connected with the lower sealing plate in an integrated manner through bolts penetrating the side wall of the outer shell.

5. The vertically-composite ballasted foam fender apparatus of claim 4, wherein, The pipe opening is provided with a sealing plate through a bolt assembly.

6. The vertically-composite ballasted foam fender apparatus of claim 1, wherein, The outer end of the upper flange and the lower flange is respectively provided with a cover plate, and the cover plate of the upper flange is provided with a lifting ring.

7. The vertically-composite ballasted foam fender apparatus of claim 6, wherein, The bottom of the cover plate of the lower flange is provided with a fixed shaft, the fixed shaft is provided with a plurality of heavy steel plates, the bottom end of the fixed shaft is provided with a locking nut, and the cover plate is further provided with a protective cover for isolating the heavy steel plates from the outside.

8. The vertically-composite ballasted foam fender system of any of claims 1-7, wherein, The outer shell is made of rubber, polyurethane or polyurea material.

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