A lashing member for a ship container

Abstract

This utility model discloses a lashing device for ship containers, relating to the field of ship fittings technology. The utility model includes: a first screw, with second screws connected to both ends of the first screw; a rotating seat connected to the center of the surface of the first screw; multiple rotating rods connected to the surface of the rotating seat; a fixed disc connected to the connection between the first and second screws; and a locking assembly connected to the side wall of the fixed disc; an adjusting assembly connected to the surface of the second screw; the locking assembly includes a fixed shaft fixedly connected to the side wall of the fixed disc, and a connecting shaft rotatably connected to the fixed shaft. By providing a connecting shaft, the connecting shaft of the locking assembly can rotate around the fixed shaft, driving the adjusting shaft to move and adjust its angle. The adjusting shaft itself can also be angle-adjusted, allowing the lashing device to adapt to various locking points at different positions and angles on different containers, greatly improving the versatility and adaptability of the lashing device.

Description

Technical Field

[0001] This utility model belongs to the field of ship accessories technology, specifically, it relates to a lashing device for ship containers. Background Technology

[0002] In shipping, to ensure the stability and safety of containers during transportation, lashing devices are used to secure the containers together.

[0003] Chinese Patent Publication No. CN220858275U discloses a lashing device for ship containers, including a counter-rotating screw and a threaded sleeve. A rotating seat is located at the center of the side of the counter-rotating screw. At both ends of the side of the counter-rotating screw at the rotating seat are threaded rods (Thread 1 and Thread 2) adapted to the threaded sleeves, with opposite thread directions. Two threaded sleeves are provided, each with several hook-shaped latches on its side. Several rotating rods are located on the side of the rotating seat, and a rotating sleeve adapted to the rotating rods is also included. By providing several hook-shaped latches on the side of the threaded sleeve, the connection methods can be diversified. More hook-shaped latches can provide more structures for fixing the latches, thereby improving the stability of the connection. Although multiple hook-shaped latches provide more connection methods, in actual use, they may still not be fully compatible with all types of connectors. Different ship containers or other related equipment may have different connection structures and size requirements. When encountering some special or non-standard connectors, existing hook-shaped latches may not provide suitable connection methods, limiting the versatility and applicability of the lashing device.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a lashing component for ship containers, thus solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A lashing device for ship containers includes: a first screw, with second screws connected to both ends of the first screw; a rotating seat connected to the center of the surface of the first screw; a plurality of rotating rods connected to the surface of the rotating seat; a fixed disc connected to the connection between the first screw and the second screw; a locking assembly connected to the side wall of the fixed disc; an adjusting assembly connected to the surface of the second screw; the locking assembly includes a fixed shaft fixedly connected to the side wall of the fixed disc; a connecting shaft rotatably connected to the fixed shaft; an adjusting shaft connected to the other end of the connecting shaft; a connecting block connected to the side wall of the connecting shaft; a connecting rod rotatably connected to the side wall of the connecting block; and the connecting rod connected to the adjusting assembly.

[0008] Optionally, the adjusting assembly includes a turntable threadedly connected to the surface of the second screw, a connecting plate rotatably connected to the side wall of the turntable, the connecting plate being slidably connected to the second screw, and one end of the connecting rod being connected to the connecting plate.

[0009] Optionally, a sliding groove is provided at one end of the connecting plate that connects to the turntable, and a slider corresponding to the sliding groove is connected to the other end of the connecting plate that connects to the turntable.

[0010] Optionally, the slider is convex, and the groove is concave, corresponding to the slider.

[0011] Optionally, the second screw is based on the principle that one end of the first screw is connected to a limit block.

[0012] Optionally, the rotating rods are evenly distributed on the surface of the rotating seat, and the rotating rods are provided with threaded grooves, and extension rods are threadedly connected in the threaded grooves.

[0013] Optionally, the adjusting shaft and the connecting shaft are fixedly connected by bolts.

[0014] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0015] 1. By setting a connecting shaft, the connecting shaft of the locking assembly can rotate around the fixed shaft, driving the adjusting shaft to move and adjust the angle. The adjusting shaft itself can also be angled, so that the lashing can adapt to the locking points of various positions and angles on different containers, greatly improving the versatility and adaptability of the lashing.

[0016] 2. By setting rotating rods and extension rods, multiple rotating rods are evenly distributed on the surface of the rotating seat, increasing the lever arm for the operator to apply force, making it easier to rotate the first screw. At the same time, the rotating rods are equipped with extension rods that can be screwed in and out. When a larger torque is required, the extension rods can be screwed out to further increase the lever arm, making the operation easier, reducing the labor intensity of the operator, and improving the operating efficiency.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0021] Figure 3 A schematic diagram of the anatomical structure of the adjustment component;

[0022] Figure 4 This is a cross-sectional structural diagram of the rotating seat and rotating rod.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. First screw; 2. Second screw; 3. Rotating seat; 4. Rotating rod; 5. Extension rod; 6. Limiting block; 7. Turntable; 8. Connecting rod; 9. Fixed plate; 10. Fixed shaft; 11. Connecting shaft; 12. Adjusting shaft; 13. Connecting block; 14. Connecting plate; 15. Slide groove; 16. Slider.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] In the early days of shipping, cargo was primarily transported in bulk, without the standardized concept of containers we have today. To prevent cargo from shifting due to ship movement during voyages, crews employed extremely simple securing methods. For example, they used ropes to tie cargo to fixed points on the deck or inside the hold. These ropes were typically made of natural fibers, such as hemp rope. While they provided some securing effect, they had many drawbacks. Hemp rope had limited strength and was easily broken by the violent rocking of the ship and the weight of the cargo in rough seas, causing cargo to scatter, resulting in not only economic losses but also potential dangers to ships. Ship safety was a concern; moreover, this simple lashing method was extremely inefficient during loading and unloading, requiring crew members to spend a significant amount of time untying and retying the ropes. As trade gradually developed, higher demands were placed on the safety and efficiency of cargo transportation. Some more advanced shipping nations began to experiment with improving cargo securing methods. In the late 19th and early 20th centuries, some simple metal connectors appeared, such as iron hooks and chains. These metal components were significantly stronger than hemp ropes, and could better withstand the weight of cargo and the forces generated during ship navigation. However, they still could not meet the needs of large-scale, standardized cargo transportation.

[0028] In the 1950s, the concept of container shipping was formally proposed and gradually applied to actual shipping. The emergence of container shipping completely changed the traditional cargo transportation model, realizing the standardization and unitization of cargo transportation, and greatly improving loading and unloading efficiency and transportation safety. With the rise of container shipping, special lashing devices for securing containers also emerged. Early container lashing devices were relatively simple, mainly including some basic connecting and fastening devices. For example, twist locks used to connect container corner fittings had a relatively simple structure, connecting containers to the ship's fixed base or adjacent containers by manual rotation. These twist locks solved the problem of relative displacement between containers to a certain extent, but their stability still needed to be improved when dealing with complex sea conditions. At the same time, early lashing rods also began to appear, used to connect containers horizontally or vertically to enhance the overall stability of container stacking. These lashing rods were usually made of steel, but their length and specifications were relatively uniform, and they could not flexibly adapt to the stacking of containers of different sizes and layouts.

[0029] From the 1960s to the 1980s, with the continuous expansion of container shipping and the trend towards larger ships, higher demands were placed on the performance of container lashing components. During this period, significant improvements were made in the design and manufacturing processes of lashing components. In terms of materials, high-strength alloy steel gradually replaced ordinary steel, allowing lashing components to maintain strength while reducing weight, facilitating operation and reducing the ship's load. In terms of structural design, lashing components became more diverse and sophisticated. For example, adjustable-length lashing rods appeared, which, through threads or other mechanical devices, could be flexibly adjusted according to the actual dimensions of container stacking, greatly improving the versatility of lashing components. At the same time, new types of twist locks were continuously developed. Emerging technologies include semi-automatic and automatic twist locks. Semi-automatic twist locks are more convenient to operate; crew members only need to place the twist lock on the container corner fittings, and locking is achieved through simple mechanical action, reducing the time and intensity of manual operation. Automatic twist locks further improve efficiency; when the container is placed in the designated position, the twist lock can automatically complete the locking action, playing an important role in the rapid loading and unloading operations of large container ships. In addition, to meet the transportation needs of different types of containers, special lashing components for special containers such as refrigerated containers and open-top containers have been developed. These lashing components are designed with full consideration of the structural characteristics and transportation requirements of special containers, ensuring the safety of various containers during transportation.

[0030] Since the 1990s, with the rapid development of computer technology, sensor technology, and new materials technology, ship container lashing components have entered a high-tech and intelligent development stage. Modern lashing components widely utilize computer-aided design (CAD) and finite element analysis (FEA) technologies in their design process. Through precise simulation and calculation, the structure of the lashing components can be optimized to minimize weight and reduce manufacturing costs while meeting high strength requirements. In terms of materials, new composite materials have begun to be applied to lashing component manufacturing. For example, carbon fiber reinforced composite materials, with their advantages of high strength, low density, and corrosion resistance, are used to manufacture lashing components for some critical parts, such as high-strength lashing rods and connectors. These composite material lashing components not only improve the performance of the lashing system but also extend its service life and reduce maintenance costs. The integration of intelligent technologies... A key feature of modern lashing systems is their robustness. Some advanced lashing systems are equipped with sensors that monitor parameters such as stress and temperature changes in real time. This data is transmitted wirelessly to the ship's monitoring system, allowing crew members to stay informed about the system's operational status and promptly identify potential safety hazards. For example, if the stress on a lashing exceeds a preset threshold, the system will immediately issue an alarm, alerting crew members to inspect and address the issue, effectively preventing container displacement or falling due to lashing failure. Furthermore, with the widespread use of automated loading and unloading equipment in ports, modern lashing systems are designed to be compatible with these devices. For instance, new automatic connection and separation devices enable rapid and automatic docking and detachment of lashings and containers during loading and unloading, significantly improving efficiency and reducing ship dwell time in port.

[0031] Please see Figure 1-4 As shown, this embodiment provides a lashing device for ship containers, comprising: a first screw 1, with second screws 2 connected to both ends of the first screw 1; a rotating seat 3 connected to the center of the surface of the first screw 1; a plurality of rotating rods 4 connected to the surface of the rotating seat 3; a fixed disk 9 connected to the connection between the first screw 1 and the second screw 2; a locking assembly connected to the side wall of the fixed disk 9; an adjusting assembly connected to the surface of the second screw 2; the locking assembly includes a fixed shaft 10 fixedly connected to the side wall of the fixed disk 9; a connecting shaft 11 rotatably connected to the fixed shaft 10; an adjusting shaft 12 connected to the other end of the connecting shaft 11; a connecting block 13 connected to the side wall of the connecting shaft 11; a connecting rod 8 rotatably connected to the side wall of the connecting block 13; and the connecting rod 8 connected to the adjusting assembly.

[0032] The first screw 1 serves as the main support structure of the entire lashing assembly, with the second screw 2 connected to both ends. This connection method makes the lashing assembly a whole, providing a basic framework for the installation and operation of other components. The rotating seat 3 provides a mounting base for the rotating rod 4, allowing the rotating rod 4 to rotate around the first screw 1. Multiple rotating rods 4 are evenly distributed on the surface of the rotating seat 3. The operator can rotate these rotating rods 4 to drive the first screw 1 to rotate. The setting of the rotating rods 4 increases the lever arm for the operator to apply force, making it easier to rotate the first screw 1 and facilitating the operation of the lashing assembly. The fixed plate 9 is located at the connection between the first screw 1 and the second screw 2, playing an important role in connecting and supporting the locking assembly. It not only firmly connects the first screw 1 and the second screw 2 together, but also provides a stable installation platform for the locking assembly, ensuring that the locking assembly can work normally. The connecting shaft 11 can rotate around the fixed shaft 10, thereby changing the angle and position of the locking assembly to adapt to the lashing requirements of different containers. One end of the connecting shaft 11 is rotatably connected to the fixed shaft 10, and the other end is connected to the adjusting shaft 12. During rotation, the connecting shaft 11 can drive the adjusting shaft 12 to a suitable position for connection with the corresponding structure on the container. The adjusting shaft 12 is used for direct connection with the container and can be adjusted in angle according to actual conditions to better match the locking points on the container and ensure the connection is secure. The connecting block 13 is installed on the side wall of the connecting shaft 11. One end of the connecting rod 8 is rotatably connected to the connecting block 13, and the other end is connected to the adjusting assembly. The function of the connecting rod 8 is to transmit the movement of the adjusting assembly to the connecting shaft 11, thereby realizing the adjustment of the locking assembly. The adjusting assembly is installed on the surface of the second screw 2 and is connected to the locking assembly through the connecting rod 8. The operator can control the movement of the connecting rod 8 by operating the adjusting assembly, thereby driving the movement of the connecting shaft 11 and the adjusting shaft 12 to fine-tune the angle and position of the locking assembly to achieve the best binding effect.

[0033] In this embodiment, the adjustment assembly includes a turntable 7 threadedly connected to the surface of the second screw 2. A connecting plate 14 is rotatably connected to the side wall of the turntable 7. The connecting plate 14 is slidably connected to the second screw 2. One end of the connecting rod 8 is connected to the connecting plate 14. A groove 15 is provided at the end of the connecting plate 14 connected to the turntable 7. A slider 16 corresponding to the groove 15 is connected at the end of the connecting plate 14 connected to the turntable 7. The slider 16 is convex in shape, and the groove 15 is concave in shape corresponding to the slider 16.

[0034] When the operator rotates the turntable 7, due to the threaded connection, the turntable 7 will move axially along the second screw 2. The threaded connection provides precise adjustment capability, allowing the operator to precisely control the movement distance of the turntable 7 as needed, thereby achieving fine adjustment of the locking assembly. The connecting plate 14 is connected to one end of the connecting rod 8. When the turntable 7 moves, it will drive the connecting plate 14 to slide on the second screw 2. The sliding of the connecting plate 14 will be transmitted to the locking assembly through the connecting rod 8, thereby changing the position and angle of the locking assembly, so that the adjusting shaft 12 can better align with the locking point of the container. Connecting plate 14 is provided with a groove 15 at one end connected to turntable 7. A slider 16 corresponding to the groove 15 is connected to turntable 7. The slider 16 is convex and the groove 15 is concave. This special shape design ensures that the slider 16 can slide stably in the groove 15 and prevents the slider 16 from coming out of the groove 15. The convex and concave structure increases the contact area and friction between the two, so that the turntable 7 can smoothly drive the connecting plate 14 to move during rotation, ensuring the stability and reliability of the adjustment process.

[0035] The principle of the second screw 2: One end of the first screw 1 is connected to a limit block 6. The function of the limit block 6 is to prevent the connecting plate 14 from slipping off the second screw 2. When the connecting plate 14 slides to a certain position on the second screw 2, the limit block 6 will block the connecting plate 14 from continuing to move, ensuring that the connecting plate 14 is always within the adjustable effective range, thus ensuring the normal operation of the adjustment component.

[0036] The rotating rods 4 are evenly distributed on the surface of the rotating seat 3, and each rotating rod 4 has a threaded groove. An extension rod 5 is threaded into the threaded groove. The evenly distributed design of the rotating rods 4 allows the operator to apply force evenly when rotating the rotating rods 4, avoiding difficulty in rotation or damage to parts due to uneven force. This distribution also improves the convenience and comfort of operation. The extension rod 5 increases the length of the rotating rod 4, thereby increasing the lever arm for the operator to apply force. When a larger torque is needed to rotate the first screw 1, the operator can unscrew the extension rod 5 to make rotation easier. When the extension rod 5 is not needed, it can be screwed into the rotating rod 4 to reduce the space occupied by the binding parts and facilitate storage and transportation.

[0037] The adjusting shaft 12 and the connecting shaft 11 are fixedly connected by bolts. This connection method is detachable, making it convenient to replace the adjusting shaft 12 when needed. At the same time, the angle of the adjusting shaft 12 can be adjusted. The bolt connection also provides sufficient connection strength to ensure that the connection between the adjusting shaft 12 and the connecting shaft 11 is firm and reliable, and can withstand greater tensile and external forces during the binding process.

[0038] Working principle:

[0039] The operator first decides whether to unscrew the extension rod 5 inside the rotating rod 4 based on the actual needs, and then rotates the rotating rod 4 to drive the first screw 1 to prepare for subsequent operations;

[0040] Rotate the turntable 7 of the adjustment assembly to move it along the axis of the second screw 2, thereby causing the connecting plate 14 to slide. The sliding of the connecting plate 14 is transmitted to the connecting shaft 11 of the locking assembly through the connecting rod 8, causing the connecting shaft 11 to rotate and drive the adjustment shaft 12 to move and adjust the angle, connecting the adjustment shaft 12 to the locking point on the container, thus completing the binding of the container. If the binding effect is not ideal, the adjustment assembly can be operated again for fine adjustment until the best binding effect is achieved.

[0041] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A lashing device for ship containers, characterized in that, include: A first screw (1) is connected to two second screws (2) at both ends. A rotating seat (3) is connected to the center of the surface of the first screw (1). Multiple rotating rods (4) are connected to the surface of the rotating seat (3). A fixed plate (9) is connected at the connection between the first screw (1) and the second screw (2). A locking assembly is connected to the side wall of the fixed plate (9). An adjustment assembly is connected to the surface of the second screw (2); The locking assembly includes a fixed shaft (10) fixedly connected to the side wall of the fixed plate (9), the fixed shaft (10) is rotatably connected to a connecting shaft (11), the other end of the connecting shaft (11) is connected to an adjusting shaft (12), the side wall of the connecting shaft (11) is connected to a connecting block (13), the side wall of the connecting block (13) is rotatably connected to a connecting rod (8), and the connecting rod (8) is connected to the adjusting assembly.

2. The lashing device for ship containers according to claim 1, characterized in that: The adjustment assembly includes a turntable (7) threadedly connected to the surface of the second screw (2), a connecting plate (14) rotatably connected to the side wall of the turntable (7), the connecting plate (14) being slidably connected to the second screw (2), and one end of the connecting rod (8) being connected to the connecting plate (14).

3. A lashing device for ship containers according to claim 2, characterized in that: The end of the connecting plate (14) connected to the turntable (7) is provided with a sliding groove (15), and the end of the connecting plate (14) connected to the turntable (7) is connected with a slider (16) corresponding to the sliding groove (15).

4. A lashing device for ship containers according to claim 3, characterized in that: The slider (16) is convex, and the groove (15) is concave, corresponding to the slider (16).

5. A lashing device for ship containers according to claim 1, characterized in that: The second screw (2) works by connecting one end of the first screw (1) to a limit block (6).

6. A lashing device for ship containers according to claim 1, characterized in that: The rotating rods (4) are evenly distributed on the surface of the rotating seat (3), and the rotating rods (4) are provided with threaded grooves, and extension rods (5) are threadedly connected in the threaded grooves.

7. A lashing device for ship containers according to claim 1, characterized in that: The adjusting shaft (12) and the connecting shaft (11) are fixedly connected by bolts.

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