High-strength parachute rope

Abstract

The utility model relates to a high-strength parachute cord, and belongs to the field of parachute cords. The metal winding layer is of a central-shaft-free spiral winding structure composed of multiple strands of metal wires; the inner core is arranged in the metal winding layer and is formed by spirally winding a plurality of strands of soft sub-wires; the textile layer is arranged outside the metal winding layer and is formed by obliquely weaving high-strength nylon fiber bands; the metal winding layer comprises an inner metal winding layer and an outer metal winding layer, the winding direction of the inner metal winding layer is opposite to that of the outer metal winding layer, and the winding direction of the inner metal winding layer is opposite to that of the outer side of the inner core. The problem that the flexibility of a traditional parachute cord is insufficient due to the existence of a central shaft is solved, so that the parachute cord has better flexibility while keeping high strength.

Description

Technical Field

[0001] The utility model belongs to the field of parachute ropes, in particular to a high-strength parachute rope. Background Art

[0002] As an important aviation equipment, parachute is widely used in aviation lifesaving, military airborne, space recovery and sports parachuting.

[0003] Parachute cords are a crucial component of a parachute, and their quality and performance directly impact the effectiveness and safety of a parachute. Traditional parachute cords are typically made from high-strength fiber materials. While these materials offer excellent tensile strength and flexibility, they can still suffer from insufficient strength, poor wear resistance, and tangling under extreme conditions.

[0004] In order to improve the comprehensive performance of parachute ropes, a multi-layer structure design has been introduced in the prior art. However, the prior art easily leads to a decrease in the flexibility of the parachute ropes and a tendency to cause entanglement in complex environments.

[0005] Based on the above problems, a high-strength parachute rope is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a high-strength parachute rope. By innovatively designing a metal winding layer structure without a central axis, combined with a high-strength composite material inner core and a multi-layer protective structure, the problem of the rope being easily entangled in complex environments is effectively solved.

[0007] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] A high-strength parachute line, the line comprising:

[0009] The metal winding layer is a spiral winding structure without a central axis composed of multiple strands of metal wires;

[0010] The inner core is arranged in the metal winding layer and is formed by spirally winding multiple strands of soft sub-wires;

[0011] The textile layer is arranged outside the metal winding layer and is made of high-strength nylon fiber belts woven obliquely;

[0012] The metal winding layer comprises an inner metal winding layer and an outer metal winding layer. The inner metal winding layer and the outer metal winding layer are wound in opposite directions. The winding direction of the inner metal winding layer is opposite to the winding direction of the outer side of the inner core.

[0013] Furthermore, the inner core is made of high-strength fiber material, including an inner core inner layer and an inner core outer layer, and the inner core inner layer and the inner core outer layer adopt a spiral winding structure in opposite directions.

[0014] Beneficial effects:

[0015] This new design adopts a center-axis-free metal winding layer design, which overcomes the problem of insufficient flexibility caused by the presence of a center axis in traditional parachute ropes. As a result, the parachute ropes have better flexibility while maintaining high strength. The center-axis-free design avoids the rigidity limitation of the center axis, allowing the parachute ropes to maintain flexible and smooth operation under various stretching and bending conditions.

[0016] The utility model adopts a double-layer inner core structure with the inner core layer and the outer core layer spirally wound in opposite directions. This overcomes the problem of insufficient stability that may occur in the traditional single-layer inner core structure during the stretching process, thereby significantly improving the tensile strength and overall stability of the parachute rope. The winding design in opposite directions increases the friction between the inner core layers, ensuring the reliability of the inner core during use.

[0017] The utility model overcomes the problem that traditional parachute ropes are easily entangled during rotation by using two inner and outer layers of metal winding layers with no central axis that are wound in opposite directions, thereby ensuring the smooth use of the parachute ropes under complex operating conditions. The opposite winding directions of the inner and outer metal winding layers can be automatically adjusted when the parachute rope rotates, ensuring that the parachute rope is always kept taut and avoiding entanglement and knotting.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is an overall structural diagram of an embodiment of the present disclosure;

[0021] Figure 2 This is a structural diagram of an embodiment of the present disclosure from an oblique viewing angle;

[0022] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] like Figure 1-Figure 3 As shown, the utility model discloses a high-strength parachute cord, which ensures the strength and flexibility of the cord by providing a metal winding layer without a central axis. The specific structure of the cord is as follows;

[0025] The parachute rope includes a metal winding layer without a central axis, a soft inner core 1 is provided inside the metal winding layer without a central axis, a soft textile layer 4 is provided outside the metal winding layer without a central axis, and an outer layer 5 for fixing and strengthening is provided outside the textile layer 4.

[0026] The inner core 1 can be made of high-strength fiber materials such as aramid, ultra-high molecular weight polyethylene, or nylon to ensure that the parachute cord has excellent tensile strength and flexibility. The inner core 1 adopts a double-layer structure, with an inner core inner layer 11 wound with multiple strands of sub-threads, and an outer core outer layer 12 wrapped with multiple strands of sub-threads.

[0027] In some embodiments, the inner core layer 11 is composed of 6 strands of wire, and the inner core outer layer 12 is composed of 12 strands of wire. The diameter of the strands is 0.3-0.5 mm, the diameter of the inner core layer 11 is 0.9-1.3 mm, and the diameter of the inner core outer layer 12 is 1.6-2.0 mm. The strands are wound at an angle of 15° to the axis. The inner core layer 11 and the inner core outer layer 12 are wound in opposite directions to ensure mutual friction and stability of the inner core layer 11 and the inner core outer layer 12.

[0028] The central axis-less metal winding layer can be formed by winding stainless steel wire or titanium alloy wire in a multi-strand spiral. The metal winding layer comprises an inner metal winding layer 2 and an outer metal winding layer 3 from the inside out. The inner metal winding layer 2 and the outer metal winding layer are wound in opposite directions, and the inner metal winding layer 2 is wound in the opposite direction to the inner core outer layer 12. This design ensures that when the parachute cord rotates in both directions, one of the metal winding layers is tightened, thereby maintaining the integrity of the parachute cord and preventing tangling. The design without a metal shaft core can avoid spiraling. This arrangement can also increase the friction of each layer.

[0029] In some embodiments, the inner metal winding layer 2 has 7 sub-wires with a diameter of 0.55-0.6 mm, and the outer diameter of the inner metal winding layer 2 is 2.7-3.2 mm; the outer metal winding layer 3 has 6 sub-wires with a diameter of 0.7-0.9 mm, and the outer diameter of the inner metal winding layer 2 is 4.4-5.0 mm.

[0030] The textile layer 4 is woven from high-density nylon fibers, and its function is to provide external protection for the parachute rope. As above, it can improve the strength to avoid structural damage to the outer metal winding layer 3 due to selection, prevent wear and environmental impact, and at the same time increase the overall softness and feel of the parachute rope.

[0031] The textile layer 4 is woven from flat nylon fibers. The tilted weaving structure allows the textile layer to fit more closely to the metal winding layer, thereby increasing the strength and preventing the outer metal winding layer 3 from structural damage due to the selection, protecting it from wear and environmental influences, while also increasing the overall softness and feel of the parachute cord.

[0032] Furthermore, the textile layer 4 is formed by oblique weaving of high-strength nylon fiber belts with a weaving angle of 15°-30°, so that the textile layer can evenly distribute the force when stretched, thereby preventing damage caused by excessive local force.

[0033] The outer layer 5 is used to fix and strengthen the structure of the entire parachute line. The outer layer 5 can be made of a high-strength coating material, such as a polyurethane coating or a silicone coating. Its main function is to provide an additional layer of protection, further enhancing the wear resistance and waterproofing of the parachute line.

[0034] Furthermore, the outer layer 5 is made of high-strength polyurethane or silicone material, which has good wear resistance, water resistance and UV resistance, and can protect the internal structure of the parachute rope in various harsh environments.

[0035] The coating thickness of the outer layer 5 is designed to be 0.5-1.0mm to ensure sufficient strength and durability without significantly increasing the weight of the paracord. The outer layer 5 is applied to the outer surface of the textile layer 4 using a uniform coating technique to ensure uniformity and integrity of the coating and avoid any weak points.

[0036] Through this multi-layer structural design, the parachute rope not only ensures high strength and softness, but also has excellent wear resistance, waterproofness and resistance to environmental impact, making it suitable for various parachute application scenarios.

[0037] In some embodiments, an auxiliary braiding shaft 10 is provided in the inner layer 11 of the inner core. The auxiliary braiding shaft 10 is used for guiding and positioning the braiding of the inner core 1. The auxiliary braiding shaft 10 may have the same material and diameter as the inner core 1 sub-wire. Furthermore, after the braiding is completed, the auxiliary braiding shaft 10 can be pulled out to ensure the softness of the inner core 1 and sufficient space for the metal winding layer.

[0038] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A high-strength parachute cord, characterized in that: The parachute cord includes: The metal winding layer is a spiral winding structure without a central axis composed of multiple strands of metal wires; The inner core is arranged in the metal winding layer and is formed by spirally winding multiple strands of soft sub-wires; The textile layer is arranged outside the metal winding layer and is made of high-strength nylon fiber belts woven obliquely; The metal winding layer comprises an inner metal winding layer and an outer metal winding layer. The inner metal winding layer and the outer metal winding layer are wound in opposite directions. The winding direction of the inner metal winding layer is opposite to the winding direction of the outer side of the inner core.

2. A high-strength parachute cord according to claim 1, characterized in that: The inner core is made of high-strength fiber material and comprises an inner core inner layer and an inner core outer layer. The inner core inner layer and the inner core outer layer adopt a spiral winding structure in opposite directions.

3. A high-strength parachute cord according to claim 2, characterized in that: The inner core inner layer is composed of 6 strands of wire, and the inner core outer layer is composed of 12 strands of wire. The diameter of the wire is 0.3-0.5mm, the diameter of the inner core inner layer is 0.9-1.3mm, and the diameter of the inner core outer layer is 1.6-2.0mm. The angle of the wire winding with the axis is 15°.

4. A high-strength parachute cord according to claim 1, characterized in that: The inner metal winding layer has 7 sub-wires with a diameter of 0.55-0.6mm, and the outer diameter of the inner metal winding layer is 2.7-3.2mm; the outer metal winding layer has 6 sub-wires with a diameter of 0.7-0.9mm, and the outer diameter of the outer metal winding layer is 4.4-5.0mm.

5. A high-strength parachute cord according to claim 1, characterized in that: The textile layer is woven from flat nylon fibers at a weaving angle of 15°-30°.

6. A high-strength parachute cord according to claim 1, characterized in that: An outer layer for protecting the inner part of the parachute rope is provided outside the textile layer.

7. A high-strength parachute cord according to claim 6, characterized in that: The outer layer is made of high-strength polyurethane or silicone material, and the outer layer coating thickness is 0.5-1.0 mm, and is evenly coated on the outer surface of the textile layer.

8. The high-strength parachute cord according to claim 1, characterized in that: An auxiliary braiding shaft is provided in the inner core, and is used for guiding and positioning the braiding of the inner core. The auxiliary braiding shaft can be drawn out after the braiding is completed.

Images