Anti-rebound cable with early warning function

Abstract

The utility model discloses an anti-rebound mooring rope with an early warning function, which comprises a main cable and a tail cable, the main cable and the tail cable are both formed by weaving a plurality of rope strands, the main cable and the tail cable are connected by adopting a double-joint structure, the tail cable comprises two rope heads and an early warning inner core, the two rope heads are respectively fixed on two sides of the early warning inner core, and the early warning inner core is fixed on the two rope heads. A trigger rope is arranged at the end, close to the bollard, of the early warning inner core, a sheath is further arranged outside the early warning inner core, one end of the trigger rope is fixed to the early warning inner core, the other end of the trigger rope is fixedly connected with the sheath, and the end, away from the trigger rope, of the sheath is fixedly connected with the early warning inner core. The hidden dangers of property loss and personnel injury caused by breakage due to the fact that breakage of the cable cannot be known in advance are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-rebound cable with a warning function. Background Technique

[0002] Dock mooring is one of the most important and dangerous jobs for seafarers. The optimal and reasonable use of cables is crucial for the mooring safety of ships. As the most widely used high-performance cable material in the shipping industry, HMPE fiber has unique advantages such as high strength, light weight, good abrasion resistance, and good fatigue resistance, which can provide a safer and more efficient mooring operation environment for seafarers.

[0003] It should be noted that the breaking elongation rate of HMPE cables is about 3%, which can effectively reduce the offset of the ship. However, when encountering harsh mooring environments (such as wind waves, surges, and tides) or loading and unloading operations, the floating of the hull is likely to cause the mooring system to be overloaded, damaging the HMPE cables. Moreover, frequent or long-term overload is more likely to cause accidental breakage of the HMPE cables.

[0004] In order to improve the strength of the mooring cable, a tail cable is often added on the basis of the existing technology, so that the mooring cable is divided into a main cable and a tail cable. During the use of the cable, the main cable and the tail cable are connected by a splicing structure, the main cable is connected to the equipment, and one end of the tail cable is installed on the bollard. When the cable is in use, it will be in a taut state. When the cable is in a taut state, the cable will generate an amplitude, and the cable will always be under tension. When the tension on the cable reaches the limit, the cable will break. Currently, the common anti-rebound cables are to add a core with a larger elongation rate to the conventional cable structure, sacrificing the strength of the cable and being prone to wear. This type of cable structure cannot predict the breakage of the cable in advance, and there is a hidden danger of property loss and personal injury when the breakage occurs. In response to the above problems, a solution is proposed below. Content of the Utility Model

[0005] The purpose of the utility model is to provide an anti-rebound cable with a warning function, which solves the problems raised in the above background technique.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] An anti-rebound cable with a warning function includes a main cable and a tail cable. Both the main cable and the tail cable are made of a number of strands. The main cable and the tail cable are connected by a double-sheet bend structure. The tail cable includes two rope ends and a warning inner core. The two rope ends are respectively fixed on both sides of the warning inner core. A trigger rope is provided at one end of the warning inner core close to the cable bollard. A sheath is also provided outside the warning inner core. One end of the trigger rope is fixed to the warning inner core, and the other end of the trigger rope is fixedly connected to the sheath. The end of the sheath away from the trigger rope is fixedly connected to the warning inner core.

[0008] Preferably, the material of the sheath is polyester fiber, and the single-layer thickness of the sheath is 6 mm.

[0009] Preferably, the material of the trigger rope is HMPE fiber, and the lay length of the trigger rope is 75 mm.

[0010] Preferably, the warning inner core is made of nylon fiber, and the lay length of the warning inner core is 85 mm.

[0011] Preferably, the color of the warning inner core is red.

[0012] Beneficial effects: In the cable, the cable sheath and the trigger rope are woven together to form a set of tension components. When the peak load in the mooring system exceeds the breaking strength of the trigger rope, the tension components in the tension state will be separated from the main body, and the tension will be transmitted to the nylon inner core. With the energy released by the fracture of the tension components, the warning inner core will absorb the corresponding energy and elongate significantly. The warning inner core is red and is exposed as a visual warning prompt, so as to achieve the warning function.

[0013] The designed breaking force of the trigger rope is 50% of that of the main cable. When the load of the mooring system exceeds 50% of the main cable, the trigger rope of this product will break first, the sheath will peel off, and the internal red inner core will be exposed, thus attracting the attention of the operator, protecting the main cable and the tail cable, and preventing them from breaking when the system is overloaded. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the embodiment;

[0015] Figure 2 It is a schematic structural diagram of the embodiment for showing the structure after the trigger rope breaks.

[0016] Reference numerals: 1, main cable; 2, tail cable; 3, rope end; 4, warning inner core; 5, trigger rope; 6, sheath. Detailed Embodiment

[0017] See Figures 1 to 2As shown in the figure, an anti-rebound cable with a warning function includes a main cable 1 and a tail cable 2. It is characterized in that both the main cable 1 and the tail cable 2 are made of a number of strands. The main cable 1 and the tail cable 2 are connected by a double-sheet bend structure. In cable mooring, the main cable 1 often uses a high-modulus chemical fiber cable. The high-modulus chemical fiber cable can be any one of high-modulus polyethylene (HMPE) fiber, aramid fiber or polyarylate fiber. The high-modulus chemical fiber cable has the unique advantages of high strength, light weight, good abrasion resistance and good fatigue resistance, which can provide a safer and more efficient mooring operation environment for the crew. The high-elastic cable can be any one of polyamide fiber, polyester fiber or polyester polyolefin bifiber. Using the high-elastic tail cable 2 helps to reduce the damage of the impact load to the high-modulus chemical fiber main cable 1, and is also beneficial for the mooring system to fight against bad sea conditions.

[0018] The tail cable 2 includes two rope ends 3 and a warning inner core 4. The two rope ends 3 are respectively fixed on both sides of the warning inner core 4. The tail cable 2 realizes the connection with the main cable 1 and the bollard through the two rope ends 3. One end of the warning inner core 4 close to the bollard is provided with a trigger rope 5. The material of the trigger rope 5 is HMPE fiber. The lay length of the trigger rope 5 is 75 mm. The outside of the warning inner core 4 is also provided with a sheath 6. The material of the sheath 6 is polyester fiber. The single-layer thickness of the sheath 6 is 6 mm. The sheath 6 plays a role in protecting the warning inner core 4. One end of the trigger rope 5 is braided together with the warning inner core 4, and the other end of the trigger rope 5 is braided together with the sheath 6. One end of the sheath 6 away from the trigger rope 5 is fixedly connected to the warning inner core 4. The warning inner core 4 is made of nylon fiber. The lay length of the warning inner core 4 is 85 mm. The warning inner core 4 is woven with red nylon fiber.

[0019] During the mooring process, the cable will be in a tense and stressed state, that is, it will be subjected to a tensile force. When the cable is subjected to a tensile force, the cable will also deform. The trigger rope 5 and the sheath 6 on the tail cable 2 will form a set of tension components. When the peak load in the mooring system exceeds the breaking strength of the trigger rope 5, the tension components in the tension state will be separated from the tail cable 2, and the tension will be transmitted to the warning inner core 4. With the energy released by the fracture of the tension components, the warning inner core 4 will absorb the corresponding energy and elongate significantly. The warning inner core 4 is red so that it can be exposed as a visual warning prompt, thus achieving the warning function. The warning inner core 4 can reach a maximum additional length of 150% until it breaks completely.

[0020] The designed breaking force of the trigger rope 5 is 50% of the breaking force of the whole rope. When the load of the mooring system exceeds 50% of the breaking force of the whole rope, the trigger rope 5 of this product will break first, and the sheath 6 will peel off, exposing the internal red inner core, thus attracting the attention of the operator, thereby protecting the main cable 1 and the tail cable 2 and preventing them from breaking when the system is overloaded.

[0021]

[0022]

Claims

1. A rebound-proof cable with a warning function, comprising a main cable (1) and a tail cable (2), characterized in that, Both the main cable (1) and the tail cable (2) are made up of a number of strands. The main cable (1) and the tail cable (2) are connected by a double sheet bend structure. The tail cable (2) includes two rope ends (3) and a warning inner core (4). The two rope ends (3) are respectively fixed on both sides of the warning inner core (4). A trigger rope (5) is provided at one end of the warning inner core (4) close to the cable bollard. A sheath (6) is also provided outside the warning inner core (4). One end of the trigger rope (5) is fixed to the warning inner core (4), and the other end of the trigger rope (5) is fixedly connected to the sheath (6). One end of the sheath (6) away from the trigger rope (5) is fixedly connected to the warning inner core (4).

2. The anti-rebound cable with a warning function according to claim 1, characterized in that The material of the sheath (6) is polyester fiber, and the single-layer thickness of the sheath (6) is 6 mm.

3. The anti-rebound cable with a warning function according to claim 1, characterized in that, The material of the trigger rope (5) is HMPE fiber, and the lay length of the trigger rope (5) is 75 mm.

4. The anti-rebound cable with a warning function according to claim 1, characterized in that, The warning inner core (4) is made of nylon fiber, and the lay length of the warning inner core (4) is 85 mm.

5. The anti-rebound cable with a warning function according to claim 4, characterized in that, The color of the warning inner core (4) is selected as red.

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