Knotless braided rope ring

Abstract

The invention discloses a knotless braided rope ring which comprises a rope body formed by braiding a plurality of strands of wires, and the rope body has structural elasticity and continuous inter-wire gaps and is integrally formed by a first insertion section, a first receiving section, a second receiving section and a second insertion section which are sequentially arranged. And the first and second insertion sections respectively penetrate through and are fixed in the line-to-line gaps of the second and first receiving sections, so that the rope body is connected end to end to form a ring. By means of the arrangement of the structure, in the using process, when the annular structure bears axial tension, the first containing section and the second containing section contract in the radial direction so that the second inserting section and the first inserting section which are arranged in the first containing section and the second containing section in a penetrating mode can be tightly pressed in the radial direction, and huge friction meshing force is generated due to extrusion between plied yarns of the inserting sections and the containing sections; therefore, stable mechanical self-locking is achieved, and finally the high-strength rope ring which does not need to be knotted, is not provided with a metal connecting piece and is tightened after being stressed is formed.

Description

Technical Field

[0001] This invention relates to the field of braided rope technology, and more particularly to a knotless braided rope loop. Background Technology

[0002] In recent years, the demand for high-performance rope loops has been continuously growing in fields with stringent requirements for reliability, material purity, and surface integrity, such as industrial hoisting, anti-static applications, and electronic cleanrooms. Currently, rope loops on the market mainly rely on traditional knots or metal connectors. Knots severely weaken rope strength and create protrusions that are prone to snagging and wear, posing safety hazards during hoisting and potentially becoming sources of contamination in clean environments. While metal connectors can maintain strength, they suffer from drawbacks such as heavy weight, susceptibility to corrosion, and the potential for their hard edges to damage ropes or generate particulate contamination, limiting their application in anti-static and cleanroom settings.

[0003] To replace traditional solutions, some knotless connection technologies have emerged in the market, such as adhesive bonding or simple interlocking. However, adhesive bonding solutions have poor fatigue resistance and questionable reliability; while simple one-way interlocking structures lack stability under complex loads and are prone to loosening, failing to meet the core requirement of "absolute reliability" for connection points in high-safety applications such as hoisting.

[0004] In summary, especially to resolve the contradictions between "knotting sacrificing strength and cleanliness", "introducing weight and contamination risks from metal parts" and "insufficient reliability of simple knotless structures" in the prior art, this invention provides a knotless braided rope loop that achieves efficient mechanical self-locking purely based on the structure of the braid itself and through bidirectional interlocking and radial friction. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a safe, reliable, lightweight, and easy-to-operate knotless braided rope loop, which solves the contradiction between connection reliability, lightweight structure, and ease of operation in existing rope loop technology, thereby improving its safety and practical efficiency in various application scenarios.

[0006] The technical solution adopted by this invention to solve its technical problem is: A knotless braided rope loop, comprising: The rope body is woven from multiple strands of yarn and has structural elasticity. In its free state, it has continuous gaps between the strands inside. The rope body is integrally composed of a first insertion section, a first receiving section, a second receiving section, and a second insertion section arranged in sequence. Wherein, the first insertion segment is at least partially inserted and fixed within the gap between the lines of the second receiving segment, and the second insertion segment is at least partially inserted and fixed within the gap between the lines of the first receiving segment, thereby connecting the ends of the rope to form a loop structure; When the ring structure is subjected to axial tension, the first receiving section and the second receiving section contract radially to radially press the second insertion section and the first insertion section respectively, so that the rope ring achieves self-locking through frictional engagement between the strands of the insertion section and the receiving section.

[0007] As an improvement of the present invention, the first receiving segment and the second receiving segment are spatially connected; the total length of the first receiving segment and the second receiving segment is greater than the total length of the first insertion segment and the second insertion segment.

[0008] As an improvement of the present invention, the total length of the first receiving segment and the second receiving segment is greater than one-half of the rope length, the total length of the first receiving segment and the second receiving segment is less than two-thirds of the rope length, and the length difference between the first receiving segment and the second receiving segment does not exceed 10%.

[0009] As an improvement of the present invention, the total length of the first insertion segment and the second insertion segment is less than half the length of the rope, the total length of the first insertion segment and the second insertion segment is greater than one-third of the length of the rope, and the length difference between the first insertion segment and the second insertion segment does not exceed 10%.

[0010] As an improvement of the present invention, the second insertion segment passes through the gap between the lines adjacent to the first insertion segment and the first receiving segment, and then passes through the first receiving segment; the first insertion segment passes through the gap between the lines adjacent to the second insertion segment and the second receiving segment, and then passes through the second receiving segment.

[0011] As an improvement of the present invention, the rope body is a braided structure of at least 3 strands, the braiding pitch of the rope body is 6 to 15 times the diameter of the rope body, each strand is made of at least 2 yarns twisted together, and the twist of the strands is 25 twists / meter to 200 twists / meter.

[0012] As an improvement of the present invention, the strands are made of chemical fiber materials, which are at least one of high molecular weight polyethylene fiber, carbon fiber, nylon fiber, polyester fiber, polypropylene fiber, polyamide fiber or aramid fiber.

[0013] As an improvement of the present invention, the strands include a first oblique strand and a second oblique strand, and the rope body is woven from multiple strands of the first oblique strand and multiple strands of the second oblique strand alternately; the surface of the rope body is covered with a coating, which is at least one of waterborne polyurethane, waterborne acrylic resin, waterborne polyester resin, waterborne silicone-containing resin, fluorine-containing resin, waterborne amino resin, waterborne alkyd resin, waterborne epoxy resin, waterborne phenolic resin, waterborne oil, and waterborne polybutadiene and waterborne hyperbranched polymer.

[0014] As an improvement of the present invention, the rope is subjected to a hot traction and shaping drying process.

[0015] A connecting component includes at least one knotless braided rope loop as described above.

[0016] The beneficial effects of this invention are as follows: Through the above-described structure, during use, on the one hand, it maximizes the strength and surface integrity of the connection point: the rope loop is constructed from four integrally woven sections of the rope body and locked through bidirectional interlocking, completely avoiding localized stress concentration and strength loss caused by traditional knotting. Simultaneously, it forms a smooth connection point without protrusions or hard metal edges, effectively eliminating the risk of snagging during hoisting and potential sources of contamination in clean, anti-static environments. On the other hand, it forms a reliable, dynamically self-tightening locking mechanism: when the rope loop is subjected to axial tension, the first and second receiving sections radially contract, applying a strong radial clamping force to the inserted section. Mechanical self-locking is achieved through the frictional force generated by the tight meshing between the strands, and the greater the tension, the stronger the self-locking effect, fundamentally solving the problem of easy loosening and failure of simple interlocking structures. At the same time, it provides a lightweight and highly environmentally adaptable solution: the structure requires no external metal or plastic connectors, significantly reducing the overall weight, and the fully woven structure is corrosion-resistant and does not generate sparks, demonstrating excellent reliability and wide applicability in complex and harsh environments such as chemical, marine, explosion-proof, and cleanroom environments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are only illustrated in the drawings and are not necessarily drawn to a true scale.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the knotless braided rope loop 100 of the present invention in a stress-free state. Figure 2 This is a schematic diagram of the overall structure of the knotless braided rope loop of the present invention when a radial force opposite to the direction of the tension axial force is applied to the rope body 100. Figure 3 This is a schematic diagram of the first process state of the knotless braided rope loop 100 of the present invention being inserted into a loop; Figure 4 This is a schematic diagram of the second process state of the knotless braided rope loop 100 of the present invention being inserted into a loop; Figure 5 This is a schematic diagram of the third process state of the knotless braided rope loop 100 of the present invention being inserted into a loop; Figure 6 This is a schematic diagram of the fourth process state of the knotless braided rope loop 100 of the present invention being inserted into a loop; Figure 7 This is a schematic diagram of the overall structure of the connecting component containing a knotless braided rope loop of the present invention.

[0020] Figure label: 100. Rope body; 110. Strand; 111. First oblique strand; 112. Second oblique strand; 120. First insertion segment; 130. First receiving segment; 140. Second receiving segment; 150. Second insertion segment. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0027] Reference Figures 1 to 7 A knotless braided rope loop, comprising: The rope 100 is woven from multiple strands of yarn 110 and has structural elasticity. In its free state, it has continuous gaps between the strands inside. The rope 100 is integrally formed by a first insertion section 120, a first receiving section 130, a second receiving section 140 and a second insertion section 150 arranged in sequence. Wherein, the first insertion segment 120 is at least partially inserted and fixed within the gap between the lines of the second receiving segment 140, and the second insertion segment 150 is at least partially inserted and fixed within the gap between the lines of the first receiving segment 130, so that the rope 100 is connected end to end to form a loop structure. When the annular structure is subjected to axial tension, the first receiving section 130 and the second receiving section 140 contract radially to radially press the second insertion section 150 and the first insertion section 120 respectively, so that the rope loop achieves self-locking through frictional engagement between the insertion section and the strands 110 of the receiving section.

[0028] With the above-described structure, unlike traditional rope loops that rely on external knots or metal connectors for closure, this invention achieves active mechanical locking purely through the internal structure of the braided body using four functional segments integrally formed by the rope body 100 itself and their unique bidirectional interlocking relationship. This improves the structural efficiency and reliability of the connection point. Even under continuous or impact loads, the shape stability and load-bearing capacity of the connecting ring can be guaranteed. The first insertion segment 120 and the second insertion segment 150 are respectively inserted and fixed in the gap between the second receiving segment 140 and the first receiving segment 130. Combined with the inherent structural elasticity of the rope body 100, they can passively respond to tension and convert it into a strong self-locking force. When the rope loop is subjected to axial tension, the first receiving section 130 and the second receiving section 140 undergo radial contraction, applying radial clamping force to the second insertion section 150 and the first insertion section 120 inserted therein, respectively. Self-locking is achieved through frictional engagement between the strands 110 of the insertion section and the receiving section. The greater the tension, the stronger the radial clamping and frictional engagement effect, thus forming a high-strength closed loop that tightens with increasing tension without the need for external materials. Therefore, this structure effectively eliminates the strength loss and structural protrusions caused by traditional knotting methods, avoids the additional weight, corrosion risk, and cutting damage to the rope from metal connectors, and solves the fundamental problem of easy loosening of simple insertion structures through its inherent dynamic self-tightening mechanism, ultimately forming a high-strength, highly reliable, and smooth knotless rope loop. It should be noted that the rope body 100 is made of flexible material, making the insertion process difficult. Therefore, in actual production, specialized tools are used to assist in the insertion process. The auxiliary tool's main body is a rigid hollow cylindrical tube. One end of the auxiliary tool's main body is a conical head, and the other end forms a rigid channel with an opening (the auxiliary tool is essentially a rigid hollow cylindrical tube with a conical head, the diameter of which matches the spacing between the rope strands). During the insertion step, the conical head of the auxiliary tool is inserted first, creating the rigid channel with an opening, and then the rope is inserted through this rigid channel. Furthermore, due to the rope's structural elasticity, by applying a radial force opposite to the axial tension of the receiving sections (130 and 140), circumferential separation of the strands can occur, resulting in a temporary increase in the spacing between the strands, creating conditions for the insertion section to pass through. The mechanical principle is that the rope has anisotropic mechanical properties due to its braided structure. When subjected to a force that causes radial expansion (opposite to the radial contraction effect when subjected to axial tension), the interlacing angle between the strands changes, leading to an increase in the spacing between the strands; after the force is removed, the spacing between the strands returns to its original size under the elastic restoring force of the strands themselves.

[0029] In this embodiment, the first receiving segment 130 and the second receiving segment 140 are spatially connected. With this structure, during use, since the first receiving segment 130 and the second receiving segment 140 are naturally adjacent, no special treatment such as cutting, sewing, or gluing is required at their connection point. The entire rope loop can be formed completely in a single continuous weaving process without interruption. This not only simplifies the production process and improves efficiency but also ensures the integrity and consistency of the rope structure's strength, greatly facilitating production. Furthermore, if one insertion segment is slightly longer than the corresponding receiving segment due to a production error, since the two receiving segments are connected, as long as the other insertion segment does not malfunction simultaneously and is designed to be slightly shorter than the corresponding receiving segment, it can still be inserted bidirectionally without affecting normal use or strength.

[0030] In this embodiment, the total length of the first receiving segment 130 and the second receiving segment 140 is greater than the total length of the first insertion segment 120 and the second insertion segment 150. Through this structural arrangement, this length relationship ensures that after the rope loop is formed, there is a sufficiently long receiving segment area to accommodate and wrap the corresponding insertion segment. The longer receiving segment provides ample space for the insertion segment to insert and anchor, allowing for a larger area of ​​frictional engagement between the insertion segment and the receiving segment strands 110 under tension. This directly enhances the reliability and load-bearing capacity of the self-locking mechanism, preventing slippage under high loads due to insufficient contact length. Simultaneously, this length ratio is highly coordinated with the integrated braided structure of the rope. During continuous braiding, this optimized structure can be directly formed by precisely controlling the length ratio of each functional segment, eliminating the need for subsequent cutting or splicing, thus maintaining production continuity and efficiency.

[0031] In this embodiment, the total length of the first receiving segment 130 and the second receiving segment 140 is greater than half the length of the rope body 100, and the total length of the first receiving segment 130 and the second receiving segment 140 is less than two-thirds the length of the rope body 100. Through the above structural design, this specific proportional range is a further optimization design based on the aforementioned length relationship. Precisely controlling the total length of the receiving segment between 1 / 2 and 2 / 3 of the total rope length achieves a balance of multiple performance characteristics in engineering: it ensures that the receiving segment has an absolute dominant length, providing a sufficient and reliable contact area for friction self-locking, thereby maximizing load-bearing capacity; it also avoids the receiving segment being too long, resulting in an insert segment that is too short, ensuring sufficient guiding length and ease of operation during insertion. The above-mentioned preferred size ratio perfectly matches the integrated weaving process of the rope body. In production, simply planning and controlling the length of each functional segment according to this ratio during continuous weaving can directly obtain a rope loop blank with optimal performance. This allows the rope loop to achieve extremely high structural strength, reliable self-locking function, and good handling feel simultaneously without any subsequent complex cutting and splicing, which is a unified embodiment of advanced design and economical manufacturing.

[0032] In this embodiment, the length difference between the first receiving segment 130 and the second receiving segment 140 does not exceed 10%. This structural design, by specifically limiting the similarity in length between the two receiving segments, represents a deep optimization of the aforementioned proportional structure. It ensures that the two receiving segments are physically approximately equal in length, thereby achieving near-synchronous and uniform radial contraction and compression when the rope loop is under force. This symmetrical and balanced mechanical behavior makes the radial compression force distribution acting on the two insertion segments (the second insertion segment 150 and the first insertion segment 120) more consistent, effectively avoiding the risk of stress concentration or local slippage caused by length differences, thus significantly improving the stability of the friction self-locking effect and the reliability of the overall structure. From a manufacturing perspective, this requirement is highly compatible with the integrated weaving process. During continuous weaving, the uniformity of the lengths of the two functional segments can be achieved through precise program control, without the need for additional measurement or adjustment steps. This not only ensures the consistency of product performance but also further simplifies the production process, improves production efficiency and product yield, and embodies lean design and manufacturing.

[0033] In this embodiment, the total length of the first insertion segment 120 and the second insertion segment 150 is less than half the length of the rope 100, and the total length of the first insertion segment 120 and the second insertion segment 150 is greater than one-third the length of the rope 100. Through the above structural design, the specific proportion of the total length of the insertion segments is defined, and in conjunction with the aforementioned length range of the receiving segment, an optimized and complete dimensional system is formed. This design ensures that the insertion segments themselves have sufficient length, giving them good operability and guidance during insertion, and enabling them to form a sufficiently long effective overlap and engagement area with the receiving segment. Simultaneously, by explicitly limiting the total length of the insertion segments to between 1 / 3 and 1 / 2 of the total rope length, a dominant length advantage is structurally maintained for their corresponding receiving segments, thereby ensuring the necessary primary and secondary relationships and force distribution for the friction self-locking mechanism as a whole. From the perspective of mechanical performance and production practice, this precise proportional range allows the rope loop to achieve the best balance between the two key requirements of "easy insertion and assembly" and "achieving strong and reliable self-locking." It is naturally compatible with integrated weaving technology and can be precisely achieved through programmed control during continuous production without the need for subsequent cutting. This not only improves the final performance and reliability of the product, but also ensures the efficiency and stability of the manufacturing process.

[0034] In this embodiment, the length difference between the first insertion segment 120 and the second insertion segment 150 does not exceed 10%. This specific limitation on the uniformity of the lengths of the two insertion segments, together with the aforementioned requirement for equal length of the receiving segment, constitutes a highly symmetrical mechanical design. It ensures that the two insertion segments are structurally essentially equal in length, allowing the load to be evenly distributed at both ends after insertion. When the rope loop is under force, this symmetry allows the force to be transmitted through two nearly identical paths, avoiding the asynchronous phenomenon that might occur when one end is stressed first and the other later due to length differences. This ensures the synchronous generation and uniform distribution of the self-locking force, further optimizing the overall stability and load-bearing efficiency of the structure. From a production and assembly perspective, this requirement brings significant convenience. Two insertion segments of essentially the same length eliminate the need for workers to distinguish or adjust them during bidirectional insertion operations, simplifying assembly steps, reducing operational complexity and the probability of errors, and facilitating standardized and mass production. This design perfectly matches the integrated weaving process, which can be achieved by setting symmetrical segment length parameters in the weaving program. It is another key design for improving product performance consistency, production efficiency, and user experience.

[0035] In this embodiment, the second insertion segment 150 passes through the gap between the first insertion segment 120 and the first receiving segment 130, and then enters the first receiving segment 130; the first insertion segment 120 passes through the gap between the second insertion segment 150 and the second receiving segment 140, and then enters the second receiving segment 140. By defining the passage path through the above structure, an optimized specific insertion method is defined. This path allows the two insertion segments to pass through the natural adjacent points of the two ends (insertion segment and receiving segment) of each other before completing the final insertion. This design creates an additional interlocking point structurally, improving the overall geometric stability and deformation resistance of the structure. Under stress, this path can guide and disperse some stress, making the force transmission path more reasonable and helping to improve the shape retention ability of the rope loop under complex loads. From a manufacturing and assembly perspective, this approach makes full use of the continuous inter-line gaps inherent in the rope itself, without the need to create new channels. The operation logic is clear and the steps are well-defined, which helps to efficiently and repeatedly complete the final forming of the rope loop in standardized production. This is a key step in realizing the specific and preferred implementation scheme of this invention.

[0036] In this embodiment, the rope 100 has a braided structure of at least three strands 110. This braided structure of at least three strands 110 is necessary to meet the requirement of interlocking into loops. Furthermore, it should be noted that the use of 12-strand braiding is a preferred and specific construction. This strand count design achieves a good balance between structural density, overall strength, and maintaining necessary flexibility in rope engineering. The 12-strand braiding method makes the cross-section of the rope 100 more rounded and the structure more uniform and compact, thus forming a smooth and regular surface in appearance and continuous and dimensionally stable inter-strand gaps internally. This uniform and sufficient gap is the physical basis for the smooth and stable interlocking of the first insertion section 120 and the second insertion section 150, and is crucial to ensuring the reliability of the final self-locking function. From a manufacturing perspective, 12-strand braiding is a mature and efficient conventional braiding process, easily automated and subject to quality control. Specifically defining the rope body 100 as this structure means that it can be produced directly using existing mature equipment and processes. This ensures excellent and consistent product performance while also considering the feasibility and economy of production, which is conducive to the industrialization of this invention. However, this does not mean that only this parameter can be used. Other strand designs that can maintain suitable structural elasticity and inter-strand spacing in the rope body 100 are also considered equivalent choices for the strands 110 described in this invention.

[0037] In this embodiment, each strand 110 is formed by twisting and plying at least two yarns. It is important to note that this design, through precise control of the number of basic yarns constituting each strand, directly determines the thickness, density, and flexibility of the strand 110 itself. Within this range, the strands possess both sufficient structural strength and suitable flexibility, ensuring that the rope 100 woven from them maintains both good overall shape and tensile strength, while also retaining the structural elasticity and ideal inter-yarn gap necessary for bidirectional interlacing and radial contraction. It should be noted that the aforementioned parameter range of 35 to 47 yarns is a specific and preferred embodiment of the present invention, the core objective of which is to enable the rope 100 to obtain and maintain suitable structural elasticity and continuous inter-yarn gap. Therefore, any other yarn count selection or equivalent strand structure parameters that can achieve the same or similar technical effects should be considered to fall within the protection scope of the present invention. From a production perspective, a clear range also provides a clear basis for raw material preparation and process control, which is conducive to ensuring the uniformity and stability of product performance.

[0038] In this embodiment, the twist of the strand 110 is between 25 twists / meter and 200 twists / meter. This specific parameter is a key technological feature constituting the structure of the strand 110. This twist range directly affects the tightness, rigidity, and resilience of the strand 110 itself. Strands twisted within this preferred range can impart ideal structural elasticity to the rope 100 after weaving: possessing sufficient overall rigidity and shape retention to maintain stable inter-stretch gaps, while also having the necessary flexibility to achieve effective radial contraction under tension, thus providing a core mechanical basis for frictional self-locking. It should be noted that the aforementioned twist range of 25 twists / meter to 200 twists / meter is one of the preferred embodiments of the present invention, its fundamental purpose being to enable the rope 100 to obtain and maintain the structural elasticity and continuous inter-stretch gaps necessary to achieve the objectives of the present invention. Therefore, any other twisting degree or equivalent strand forming process parameter that can achieve the same or similar technical effects should be considered an equivalent choice of the technical solution described in the present invention and fall within the protection scope of the present invention. From a production practice perspective, this clearly defined parameter range provides a direct basis for precisely controlling the consistency of product quality and performance. It should be noted that the twist parameter range for the 110 strands corresponding to 12-strand braiding is 50 twists / meter to 150 twists / meter. In this embodiment, the strands 110 are made of synthetic fiber materials, including at least one of high molecular weight polyethylene fiber, carbon fiber, nylon fiber, polyester fiber, polypropylene fiber, polyamide fiber, or aramid fiber. The specific definition of the strand material in the above structure directly determines the ultimate mechanical properties, environmental adaptability, and application level of the rope loop. All of the above are modern high-performance synthetic fibers, which collectively endow the rope 100 with strength, high modulus, excellent fatigue resistance, and corrosion resistance far exceeding those of natural fibers. For example, high molecular weight polyethylene fiber has extremely high specific strength, aramid fiber has excellent heat resistance and cut resistance, while polyester and polyamide fibers offer a good balance between strength, elasticity, and cost. The selection of these materials enables the rope loop of this invention to meet the stringent requirements for core load-bearing components in high-end applications ranging from heavy-duty lifting and marine mooring to safety protection. From a technical synergy perspective, the superior mechanical properties and spinnability of these synthetic fiber materials perfectly complement the braiding structure, elastic design, and friction self-locking mechanism described in the preceding claims. These materials ensure that the strands 110 do not suffer plastic damage or creep when the rope is repeatedly subjected to enormous tensile forces and undergoes radial deformation, thus guaranteeing the long-lasting reliability and ultra-long lifespan of the self-locking function. Furthermore, these materials are highly commercialized and have mature production processes, facilitating large-scale procurement and processing, which is beneficial for the industrialization and market promotion of this invention.

[0039] In this embodiment, the weave pitch of the rope 100 is 6 to 15 times its diameter. This specific weave pitch parameter is a key structural feature optimized in the design, precisely controlling the weaving density and shape of the rope 100. A weave pitch of 6 to 15 times means that the rope has an appropriate number of spiral turns per unit length, which directly determines its overall balance: while ensuring that the rope structure is tight, round, and has sufficient tensile stiffness, it also maintains the necessary space for movement between the strands and overall flexibility. This specific tightness provides a direct structural guarantee for the rope to achieve "structural elasticity" and maintain "continuous inter-strand gaps," and is one of the prerequisites for the insertion section to smoothly penetrate and ultimately achieve effective radial contraction and frictional self-locking. From a technical collaboration and production perspective, this clear weave pitch range (6 to 15 times) provides a repeatable and verifiable quantitative standard for the manufacturing process. Combined with the aforementioned parameters such as the number of strands and strand structure, it collectively defines a preferred embodiment with predictable performance and controllable process. This not only ensures a high degree of consistency in the performance of the final product, but also transforms the invention from a concept into a stable and efficient industrial product, enhancing its feasibility for industrial implementation. It should be noted that the braiding pitch of the rope 100 described above, which is 6 to 15 times the diameter of the rope 100, is one of the preferred embodiments of the present invention. Its fundamental purpose is to enable the rope 100 to obtain and maintain the structural elasticity and continuous inter-line gaps necessary to achieve the objectives of the present invention. Therefore, any other braiding pitch setting parameter that can achieve the same or similar technical effects should be considered an equivalent choice of the technical solution described in the present invention and fall within the protection scope of the present invention.

[0040] In this embodiment, the strands 110 include a first oblique strand 111 and a second oblique strand 112, and the rope 100 is woven from multiple strands of the first oblique strand 111 and multiple strands of the second oblique strand 112 in an alternating manner. The above-described structure further defines the weaving structure, revealing the core microstructure that enables the rope 100 to achieve its comprehensive performance. Using two strands of different oblique directions for alternating and balanced weaving is a classic and preferred solution for forming a stable, rounded, and less kinked rope structure. This structure allows the internal stress of the rope to be evenly distributed and effectively offset through two sets of opposite helical systems when subjected to axial tension, thereby greatly improving the dimensional stability, anti-rotation properties, and fatigue resistance of the rope. This uniform and stable internal structure is the microscopic basis for the rope to repeatedly withstand radial contraction and recovery while maintaining reliable and durable function. From a functional perspective, this alternating weaving structure directly and precisely creates the aforementioned "continuous inter-strand gaps." This allows the rope to remain macroscopically tight while forming a regular, interconnected, and dimensionally stable network of gaps at the microscopic level, providing a physical channel for the smooth passage and precise positioning of the insertion segment. Therefore, this feature is not an isolated process choice, but rather forms a direct causal and technical support relationship with the "inter-line gap" and "structural elasticity" necessary to achieve the self-locking function, and is an indispensable part of the preferred embodiment of this invention.

[0041] In this embodiment, the surface of the rope 100 is coated with a coating, which is at least one of waterborne polyurethane, waterborne acrylic resin, waterborne polyester resin, waterborne silicone-containing resin, fluorinated resin, waterborne amino resin, waterborne alkyd resin, waterborne epoxy resin, waterborne phenolic resin, waterborne oil, waterborne polybutadiene, and waterborne hyperbranched polymer. With the above-described structure, applying a polyurethane coating to the surface of the rope 100 during use is an important functional optimization of this solution. This coating forms a strong, continuous, and elastic protective film on the rope surface. Its main functions are: First, it significantly improves surface abrasion resistance, protecting the strands 110 from damage caused by friction and scratching during use, thereby extending the overall lifespan of the rope loop; Second, it enhances environmental protection, effectively blocking moisture, salt spray, ultraviolet rays, and some chemicals from corroding the internal fibers, broadening the applicability of the rope loop in harsh environments such as outdoors, marine, or industry; Third, it improves surface performance and operability, making the rope loop surface smoother and reducing resistance during insertion, and may provide certain antistatic properties. This coating feature works synergistically with all the aforementioned structural and material features. Taking polyurethane coating as an example, the polyurethane coating itself has good elasticity, matching the "structural elasticity" of the rope body 100. When the rope loop is subjected to radial contraction, it extends accordingly without cracking or falling off, thus ensuring that the self-locking mechanism still works reliably in the presence of the coating. At the same time, the coating process, as a post-processing step, will not damage or block the integrated braided rope body base structure and its critical "inter-strand gaps." Therefore, this preferred coating solution provides additional protection and functionality while fully compatibility with and enhancing the core technology of this invention.

[0042] In this embodiment, the rope 100 undergoes a hot-drawing and shaping-drying process. By setting the above steps, hot drawing and shaping-drying are considered post-processing steps for the rope 100, which are crucial manufacturing steps to ensure that it obtains and maintains the key physical properties (i.e., "structural elasticity" and "continuous and stable inter-thread gaps") upon which this invention relies. The hot-drawing process applies axial tension to the woven rope at a specific temperature. Its core function is to eliminate internal stress generated during weaving, making the strands 110 more straight and uniform, and precisely stabilizing the final diameter and weave spacing of the rope. The subsequent shaping-drying, under controlled temperature and humidity conditions, fixes the microstructure of the fibers (especially for synthetic fibers), thereby "locking in" the ideal shape and elastic state of the rope obtained after hot drawing. This series of processes directly serves the functional realization of this invention. After processing, the rope 100 exhibits more predictable and stable structural elasticity, maintaining a preset tension and resilience in a free state. Simultaneously, its internal inter-line spacing becomes more uniform and consistent, providing a dimensionally stable and unobstructed passageway for the insertion section. This ensures that every rope loop produced according to this invention has a highly consistent insertion feel and final self-locking performance, improving product reliability and yield. Therefore, this process step is a crucial quality control step from high-quality raw materials and precision weaving to high-performance, highly consistent final products.

[0043] A connecting assembly includes at least one knotless braided rope loop as described in claim 1. With the above-described structure, the connecting assembly including the rope loop of this invention has the advantages of high strength, high reliability, and wide environmental adaptability, making it suitable for many fields such as hoisting, safety protection, and clean environments. The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A knotless braided rope loop, characterized in that, include: The rope (100) is woven from multiple strands of thread (110) and has structural elasticity. In a free state, it has continuous gaps between the strands inside. The rope (100) is integrally formed by a first insertion section (120), a first receiving section (130), a second receiving section (140), and a second insertion section (150) arranged in sequence. Wherein, the first insertion segment (120) is at least partially inserted and fixed within the gap between the lines of the second receiving segment (140), and the second insertion segment (150) is at least partially inserted and fixed within the gap between the lines of the first receiving segment (130), thereby connecting the ends of the rope (100) to form a loop structure; When the ring structure is subjected to axial tension, the first receiving section (130) and the second receiving section (140) contract radially to radially press the second insertion section (150) and the first insertion section (120) respectively, so that the rope ring achieves self-locking through frictional engagement between the insertion section and the strands (110) of the receiving section.

2. The knotless braided rope loop according to claim 1, characterized in that, The first receiving segment (130) and the second receiving segment (140) are spatially connected; the total length of the first receiving segment (130) and the second receiving segment (140) is greater than the total length of the first insert segment (120) and the second insert segment (150).

3. The knotless braided rope loop according to claim 1, characterized in that, The total length of the first receiving segment (130) and the second receiving segment (140) is greater than half the length of the rope body (100), the total length of the first receiving segment (130) and the second receiving segment (140) is less than two-thirds the length of the rope body (100), and the length difference between the first receiving segment (130) and the second receiving segment (140) does not exceed 10%.

4. The knotless braided rope loop according to claim 1, characterized in that, The total length of the first insertion segment (120) and the second insertion segment (150) is less than half the length of the rope body (100), the total length of the first insertion segment (120) and the second insertion segment (150) is greater than one-third the length of the rope body (100), and the length difference between the first insertion segment (120) and the second insertion segment (150) does not exceed 10%.

5. The knotless braided rope loop according to claim 1, characterized in that, The second insertion segment (150) passes through the gap between the first insertion segment (120) and the first receiving segment (130) and then passes into the first receiving segment (130); the first insertion segment (120) passes through the gap between the second insertion segment (150) and the second receiving segment (140) and then passes into the second receiving segment (140).

6. The knotless braided rope loop according to claim 1, characterized in that, The rope (100) is a braided structure of at least 3 strands (110), the braiding pitch of the rope (100) is 6 to 15 times the diameter of the rope (100), each strand (110) is made of at least 2 yarns twisted together, and the twist of the strand (110) is 25 twists / meter to 200 twists / meter.

7. The knotless braided rope loop according to claim 1, characterized in that, The strand (110) is made of chemical fiber material, which is at least one of high molecular weight polyethylene fiber, carbon fiber, nylon fiber, polyester fiber, polypropylene fiber, polyamide fiber or aramid fiber.

8. The knotless braided rope loop according to claim 1, characterized in that, The strands (110) include a first oblique strand (111) and a second oblique strand (112). The rope (100) is woven from multiple strands of the first oblique strand (111) and multiple strands of the second oblique strand (112) in alternating patterns. The surface of the rope (100) is covered with a coating, which is at least one of waterborne polyurethane, waterborne acrylic resin, waterborne polyester resin, waterborne silicone-containing resin, waterborne fluorinated resin, waterborne amino resin, waterborne alkyd resin, waterborne epoxy resin, waterborne phenolic resin, waterborne oil, waterborne polybutadiene, and waterborne hyperbranched polymer.

9. The knotless braided rope loop according to claim 1, characterized in that, The rope (100) is treated with thermal traction and shaping and drying processes.

10. A connecting component, characterized in that, It includes at least one knotless braided rope loop as described in claim 1.

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