High-strength cargo fixing tight rope belt for ship navigation

Abstract

The utility model relates to tight cable technology field, concretely relates to a high strength goods fixed tight cable for ship navigation, including the tight cable body of strip shape, the two ends of tight cable body are provided with female buckle and male buckle for connecting respectively, and the tight cable body includes the driving shrinkage layer on the force bearing core and the force bearing core at least one side surface and is covered as the force bearing main part. Compared with the prior art, the application is provided with the impact resistance clamping section and the impact resistance layer, when encountering the instantaneous high strength impact caused by the ship shaking, can quickly change into the local rigid structure, through the instantaneous rigidification to high -efficient absorption and dispersion impact energy, greatly inhibits the goods displacement, thereby in keeping the whole flexibility, provides the intelligent impact protection that traditional rigid restraint cannot compare for the valuable equipment.

Description

Technical Field

[0001] This utility model relates to the field of cable tie technology, and in particular to a high-strength cargo securing cable tie for ship navigation. Background Technology

[0002] When ships are navigating the ocean and transporting containers, large equipment and precision equipment in complex sea conditions, they generally use cargo securing systems consisting of high-strength fiber webbing, ratchet tensioners, fasteners and other components. The high tensile strength and multi-point anchoring of the webbing are used to limit the translation and overturning of the cargo.

[0003] In the prior art, Chinese patent document CN2506545Y, a cargo binding device, proposes a tensioning mechanism consisting of a support, a rotating shaft, a ratchet, and a flat strap. The strap is wound around the rotating shaft, and the mechanical fastening of the cargo is achieved through the cooperation of the ratchet and the locking teeth. This improves the binding efficiency and locking reliability to a certain extent, and solves the problems of laborious knotting and inconvenient operation of traditional ropes. Another example is Chinese patent document CN200942926Y, a cargo binding strap, which proposes to arrange a hooked and felted surface on the strap surface and to set an elastic plate in the middle of the strap. The elastic plate generates a rebound force to achieve length adjustment and a certain degree of elastic buffering, improving the binding strength and reusability, and reducing reliance on metal fasteners. These technical solutions have played a certain role in improving the convenience of cargo binding operations and basic locking capabilities, but overall they still mainly rely on a single load-bearing webbing combined with a mechanical tensioning mechanism with fixed stiffness or simple elastic elements, which is a typical passive constraint and conventional buffering approach. In the actual working conditions of ships sailing for long periods and frequently being impacted by wind, waves, and deck vibrations, traditional tensioning straps and their matching tensioning devices mostly adopt a strap structure with a cross-section and stiffness that is basically uniform along the length. They rely solely on the high-strength fiber body to provide tensile load, and supplement the cargo corners with conventional rubber pads, corner protectors, or elastic elements. Their protection mechanism is mainly static wear prevention and buffering through "thickening + increased friction": On the one hand, when the tensioning strap wraps around the cargo corners or contacts the equipment shell, due to the fixed stiffness of the strap and the single function of the inner and outer layers, it is difficult to achieve flexible fit and reasonable stress distribution for complex cargo contours under normal conditions, which easily leads to the formation of new indentations and stress concentrations in local areas; on the other hand, when encountering high-frequency, instantaneous impact loads caused by strong winds and waves, it lacks an intelligent stiffening mechanism that can dynamically change with the load and "become stronger when encountering stronger loads," and is unable to While increasing the support stiffness locally at the moment of impact and efficiently absorbing and dispersing the impact energy may lead to problems such as cargo displacement, loosening of binding points, or damage to the surface of valuable equipment, existing cable systems often use polymer materials such as polyester fiber and high-strength polyethylene fiber for their load-bearing core. Under long-term high loads, temperature and humidity changes, and vibration coupling, these materials inevitably undergo creep and relaxation, causing the initial tension to decrease continuously over the voyage. Existing solutions mainly rely on ratchet re-tightening or limited passive compensation provided by mechanical components such as springs. This requires frequent inspections and repeated tightening by operators, resulting in high labor intensity and susceptibility to human experience. Furthermore, it is difficult to continuously and evenly apply additional clamping force to the load-bearing core throughout the entire voyage. Therefore, this application discloses a high-strength cargo fixing cable for ship navigation. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a high-strength cargo securing cable for ship navigation, so as to solve the dual problems of existing ship cargo securing cables, which still generally have the following shortcomings under long-term wind and wave impact and vibration conditions: uniform stiffness of the cable body structure and the inability to maintain tension continuously and stably throughout the entire voyage, which can only rely on mechanical devices for passive and intermittent compensation after the load-bearing core creeps and loosens.

[0005] Based on the above objectives, this utility model provides a high-strength cargo securing cable for ship navigation, comprising a strip-shaped cable body, with female and male buckles for connection at both ends of the cable body, and the cable body comprising a load-bearing core as the load-bearing body and a drive contraction layer covering at least one side of the load-bearing core. At least one impact-resistant clamping section is provided at intervals along the length of the load-bearing core, and an impact-resistant layer is added to the side of the load-bearing core away from the drive contraction layer.

[0006] Preferably, the impact-resistant layer includes a flexible sheath bonded or thermally welded to the load-bearing core and a shear-thickening fluid sealed within the flexible sheath.

[0007] Preferably, the impact-resistant layer is further provided with reinforcing fibers suspended in the shear-thickening fluid. The reinforcing fibers can slide relative to the shear-thickening fluid when the shear-thickening fluid is in a liquid state, and are locked in place when the shear-thickening fluid solidifies to form a three-dimensional reinforcing network.

[0008] Preferably, the shear-thickening fluid is a composite fluid formed by dispersing nano-silica particles in polyethylene glycol.

[0009] Preferably, the driving shrinkage layer is made of shape memory polymer fiber or hydrolyzed expanded fiber, and is used to generate shrinkage under external stimulation, thereby applying additional preload to the load-bearing core.

[0010] Preferably, there are multiple impact-resistant clamping sections, which are respectively arranged on the tension strap body at positions corresponding to the corners of the cargo or positions requiring special protection.

[0011] Preferably, the load-bearing core is woven from ultra-high molecular weight polyethylene fiber or aramid fiber.

[0012] The beneficial effects of this utility model are: 1. This type of high-strength cargo securing cable for ship navigation, through the setting of impact-resistant clamping sections and impact-resistant layers, utilizes an intelligent composite system composed of internal shear-thickening fluid and reinforcing fibers to give the cable a dynamic protective capability of "strengthening under strong conditions": under normal conditions, it flexibly conforms to the surface of the cargo, effectively dispersing stress and avoiding damage; when encountering instantaneous high-intensity impacts caused by ship swaying, it can quickly transform into a local rigid structure, efficiently absorbing and dispersing impact energy through instantaneous stiffening, greatly suppressing cargo displacement, thus providing intelligent impact protection for valuable equipment that is incomparable to traditional rigid restraints while maintaining overall flexibility.

[0013] 2. This type of high-strength cargo securing cable for ship navigation, by incorporating a driven contraction layer, utilizes the thermal shrinkage of shape memory polymer fibers or the wet expansion of hydrolyzed expansion fibers to achieve active maintenance and adaptive compensation of tension: after initial tensioning, this layer can generate a continuous and uniform additional clamping force through simple external stimuli (such as local heating or ambient humidity), effectively counteracting the creep relaxation of the load-bearing core material, ensuring that the cable maintains optimal tension throughout the entire navigation cycle, significantly reducing the reliance on frequent inspections and repeated tightening by operators, improving safety, reliability, and ease of use, and achieving a leap from passive constraint to active intelligent maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the planar structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the impact-resistant layer of this utility model; Figure 5 This is a schematic diagram illustrating the impact state changes of this utility model.

[0016] The diagram is marked as follows: 1. Tightening strap body; 2. Impact-resistant clamping section; 3. Female buckle; 4. Male buckle; 5. Load-bearing core; 6. Driven contraction layer; 7. Impact-resistant layer; 8. Flexible sheath; 9. Shear-thickening fluid; 10. Reinforcing fiber. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figures 1 to 5As shown, a high-strength cargo securing cable for ship navigation includes a strip-shaped cable body 1. Both ends of the cable body 1 are respectively provided with a female buckle 3 and a male buckle 4 for connection. The cable body 1 includes a load-bearing core 5 as the main load-bearing component and a drive contraction layer 6 covering at least one side of the load-bearing core 5. At least one impact-resistant clamping section 2 is provided at intervals along the length of the load-bearing core 5. The impact-resistant clamping section 2 has an additional impact-resistant layer 7 on the side of the load-bearing core 5 away from the drive contraction layer 6. The impact-resistant layer 7 includes a flexible sleeve 8 bonded or heat-welded to the load-bearing core 5 and a shear-thickening fluid 9 sealed within the flexible sleeve 8. The load-bearing core 5 is woven from ultra-high molecular weight polyethylene fiber or aramid fiber. The load-bearing core 5 in the main body 1 of the tensioning strap provides basic strength, while the drive contraction layer 6 can actively counteract creep relaxation during use, maintain constant tension, and reduce reliance on operator experience. The most noteworthy feature is the impact-resistant clamping section 2, whose internal shear-thickening fluid 9 remains soft under normal conditions, adapting to the shape of the cargo, increasing the contact area, and preventing stress concentration damage to the cargo surface. Once the ship violently rocks and generates high-frequency impacts, the fluid can quickly become almost solid, making the clamping section locally rigid, effectively suppressing cargo displacement like an instantaneously cast clamp, absorbing and dispersing the destructive impact energy, thereby greatly improving the reliability of securing valuable or precision cargo in harsh sea conditions. This "soft on the outside and hard on the inside" intelligent characteristic, which makes the tensioning strap provide dynamic safety protection that traditional designs cannot achieve while maintaining overall softness and ease of use, thus achieving multiple goals of protecting cargo, simplifying operation, and improving safety.

[0020] like Figures 1 to 5 As shown, there are multiple impact-resistant clamping sections 2, which are respectively set on the cable strap body 1 corresponding to the positions that bypass the sharp corners of the goods or require special protection. The impact-resistant layer 7 is also provided with reinforcing fibers 10 suspended in shear-thickening fluid 9. The reinforcing fibers 10 can slide relative to each other when the shear-thickening fluid 9 is in a liquid state, and are locked when the shear-thickening fluid 9 is solidified to form a three-dimensional reinforcing network. The shear-thickening fluid 9 is a composite fluid formed by dispersing nano-silica particles in polyethylene glycol. A leap in macroscopic protective performance is achieved through instantaneous phase transitions in the microstructure. Multiple impact-resistant clamping sections 2 are precisely positioned at stress concentration points such as cargo corners, acting like multiple sensitive "tactile sensors" and "miniature shock absorbers" for the strapping. This ensures that, upon impact, the protective force acts directly and quickly on the most critical weak points, avoiding localized failures caused by lag in force chain transmission. The composite material system consisting of reinforcing fibers 10 and shear-thickening fluid 9 within the impact-resistant layer 7 is the core of the intelligent response: Under normal conditions, the reinforcing fibers 10 can slide freely in the fluid, giving the clamping sections extreme flexibility, allowing them to conform to the cargo contours like muscles and disperse static pressure; once an impact occurs, the shear-thickening fluid 9 changes from a liquid to a near-solid state within milliseconds. Instantly, the randomly distributed reinforcing fibers 10 are "welded" into a robust three-dimensional network. At this moment, a region transforms from a flexible buffer pad into a rigid support, effectively locking the fibers, absorbing and dispersing enormous impact energy, and suppressing cargo displacement. Meanwhile, the shear thickening fluid 9, a specific composite fluid of nano-silica and polyethylene glycol, ensures that this intelligent response remains reliable, stable, and repeatable millions of times without attenuation in a wide temperature range of the marine environment. Ultimately, these characteristics work synergistically, making the cable strap no longer a simple passive constraint, but a distributed protection system with tactile perception, intelligent decision-making, and instantaneous stiffening capabilities. While maintaining overall flexibility and ease of operation, it provides ship cargo with dynamic and adaptive safety protection that traditional solutions cannot match.

[0021] like Figures 1 to 3 As shown, the driving shrinkage layer 6 is made of shape memory polymer fiber or hydrolyzed expanded fiber, and is used to generate shrinkage under external stimulation, thereby applying additional preload to the load-bearing core 5. When shape memory polymer fibers are used, the fiber layer can generate a controllable and strong shrinkage force through simple local heating (such as a portable heat gun). This shrinkage is caused by changes in the physical properties of the material itself. Without complex mechanisms, continuous and uniform radial pressure can be applied to the load-bearing core 5, thereby effectively counteracting the inevitable creep relaxation phenomenon of high-performance fibers under long-term high loads. This allows the tensioning strap to maintain optimal initial tension under external temperature changes and continuous vibrations, greatly improving fixation reliability and safety, and reducing the reliance on frequent inspections and repeated tensioning by operators. If hydrolyzed expandable fibers are used, the ingenious aspect lies in the ability to absorb moisture from the marine environment (whether it be seawater spray or dampness). Moist air transforms from an adverse factor into a "switch" that triggers the pre-tensioning function. After absorbing water, the fiber expands in diameter and flexibly squeezes the load-bearing core 5 from the inside. By increasing friction, it achieves automatic compensation tension. This is a completely passive yet extremely intelligent response mechanism, which is particularly suitable for the specific application scenario of ships. It achieves true environmental self-adaptation, enabling the tensioning cable to not only passively defend itself through the impact-resistant layer 7 at the moment of impact, but also actively maintain its optimal working state throughout the entire voyage. It extends dynamic safety from instantaneous response to all-time protection, while avoiding the weight, complexity, and cost problems caused by using hydraulic or electric tensioning mechanisms. Ultimately, it achieves a unity of lightweight, high reliability, and intelligence.

[0022] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0023] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-strength cargo securing cable for ship navigation, comprising a strip-shaped cable body (1), wherein both ends of the cable body (1) are respectively provided with a female buckle (3) and a male buckle (4) for connection, characterized in that, The tension cable body (1) includes a load-bearing core (5) as the load-bearing body and a drive contraction layer (6) covering at least one side of the load-bearing core (5). At least one impact-resistant clamping section (2) is provided at intervals along its length on the load-bearing core (5), and the impact-resistant clamping section (2) is provided with an impact-resistant layer (7) on the side of the load-bearing core (5) away from the drive contraction layer (6).

2. The high-strength cargo securing cable for ship navigation according to claim 1, characterized in that, The impact-resistant layer (7) includes a flexible sheath (8) bonded or heat-welded to the load-bearing core (5) and a shear-thickening fluid (9) sealed within the flexible sheath (8).

3. The high-strength cargo securing cable for ship navigation according to claim 2, characterized in that, The impact-resistant layer (7) is further provided with reinforcing fibers (10) suspended in the shear-thickening fluid (9). The reinforcing fibers (10) can slide relative to the shear-thickening fluid (9) when it is in a liquid state, and are locked when the shear-thickening fluid (9) solidifies to form a three-dimensional reinforcing network.

4. The high-strength cargo securing cable for ship navigation according to claim 3, characterized in that, The shear-thickening fluid (9) is a composite fluid formed by dispersing nano-silica particles in polyethylene glycol.

5. The high-strength cargo securing cable for ship navigation according to claim 1, characterized in that, The driving shrinkage layer (6) is made of shape memory polymer fiber or hydrolyzed expanded fiber and is used to shrink under external stimulation, thereby applying additional preload to the load-bearing core (5).

6. The high-strength cargo securing cable for ship navigation according to claim 1, characterized in that, The number of impact-resistant clamping sections (2) is multiple, and they are respectively set on the fastening strap body (1) at positions that bypass the sharp corners of the goods or require special protection.

7. The high-strength cargo securing cable for ship navigation according to claim 1, characterized in that, The load-bearing core (5) is woven from ultra-high molecular weight polyethylene fiber or aramid fiber.

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