Double-ring interlocking rope ladder
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN POLYUNION TEXTILE TECH CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-07
AI Technical Summary
[0003]1、传统的绳梯由于采用两条粗主绳和双层厚织带，材料冗余，导致整体绳梯重量增加，不便于携带；
[0026]1、本实用新型的双环互锁式绳梯可以通过调整环形纱线圈的绕纱圈数，来调节绳梯的负载上限，随着绕纱圈数的增加，绳梯的承载能力增大；且可以根据需要调整相邻环形绳的互锁位置处依次绕设的增强层、包覆层的绕设长度和绕设圈数，随绕设长度、绕设圈数的增加，绳梯的承重能力增大，且可以形成不同长度的便于踩踏的脚踏板位，以满足不同的需求；环形纱线圈外部设置环套，可以提供优异的耐磨保护，以维持内部环形纱线圈的形态稳定性和工作可靠性；本实用新型绳梯的相邻的环形绳及其环形纱线圈之间呈锁链式互锁结构，即使增强层与包覆层因意外情况发生断裂或磨损，锁链式互锁结构仍可独立维持绳梯的整体连接性和基本功能，具备极高的失效保护能力；本实用新型的双环互锁式绳梯具有重量轻、强度高、生产工艺简单的优点。
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Figure CN224606339U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rope ladder technology, specifically a double-ring interlocking rope ladder. Background Technology
[0002] In the field of rope ladder manufacturing, traditional rope ladders typically employ a structure with two main ropes and sewn webbing (such as...). Figure 1 As shown in the diagram, the specific construction method is as follows: First, select two thick ropes as the main ropes and mark the position of each footboard on both ropes, ensuring that the marks on the two main ropes are aligned; then, sew the thick first webbing between the marked positions on the two main ropes using a sewing machine; finally, sew the second webbing to the back of the first webbing, and sew the two webbings together to form the footboard structure. However, this traditional rope ladder structure has the following drawbacks:
[0003] 1. Traditional rope ladders use two thick main ropes and double-layer thick webbing, which results in redundant materials, increasing the overall weight of the rope ladder and making it inconvenient to carry.
[0004] 2. The load capacity of traditional rope ladders is related to the load-bearing capacity of the main rope and webbing. If the load needs to be increased, the main rope or webbing must be replaced with a thicker one, which lacks adaptability.
[0005] 3. Traditional rope ladders require multiple positioning and sewing processes, resulting in low production efficiency and high labor costs. Utility Model Content
[0006] To address the shortcomings of existing technologies, this invention provides a double-ring interlocking rope ladder. The upper load limit of the rope ladder can be adjusted by changing the number of loops in the annular yarn coils; as the number of loops increases, the load-bearing capacity of the rope ladder increases. Furthermore, the winding length and number of loops of the reinforcing layer and covering layer sequentially wound at the interlocking positions of adjacent annular ropes can be adjusted as needed. With increasing winding length and number of loops, the load-bearing capacity of the rope ladder increases, and footboards of varying lengths can be created to meet different needs. An outer ring sleeve on the annular yarn coils provides excellent wear-resistant protection, maintaining the morphological stability and operational reliability of the internal annular yarn coils.
[0007] To achieve the above objectives, this utility model employs the following technical solution:
[0008] Double-ring interlocking rope ladder, including:
[0009] Multiple interlocking loops are connected in sequence. Each loop includes a loop of yarn wound around a yarn coil and a loop disposed outside the loop of yarn coil. Each loop passes through another loop adjacent to it to form a chain-like interlocking structure.
[0010] A reinforcing layer is wound around the interlocking positions of the adjacent looped ropes;
[0011] A covering layer is applied to the outer periphery of the reinforcing layer and then fixed by stitching.
[0012] In some embodiments, the loop is formed by wrapping a flat fabric around the outside of the annular yarn loop and then sewing them together.
[0013] In other embodiments, the loop is a tubular fabric with a hollow channel, and the yarn is threaded through the tubular fabric and wound into the annular yarn loop along the hollow channel of the tubular fabric.
[0014] Furthermore, between two adjacent looped ropes, the yarn of the later-formed looped yarn coil is wound through the earlier-formed looped yarn coil / looped rope to form a chain-like interlocking structure between the adjacent looped ropes.
[0015] Furthermore, the two ends of the tubular fabric are sewn together.
[0016] Furthermore, the tubular fabric includes one of hollow rope, water pipe rope, or hollow webbing.
[0017] Furthermore, the two ends of the tubular fabric are overlapped and then sewn together by a sewing machine.
[0018] Furthermore, the reinforcing layer is disposed at the stitched connection positions at both ends of the tubular fabric.
[0019] Furthermore, the reinforcing layer is one or more of webbing, round rope, and yarn;
[0020] Furthermore, the reinforcing layer is stitched and fixed at the interlocking positions of the adjacent annular ropes;
[0021] Furthermore, before the reinforcing layer is wound, the adjacent annular ropes are stitched together at the interlocking position.
[0022] Furthermore, the surface of the coating layer is provided with an anti-slip structure.
[0023] Furthermore, the yarn is one of ultra-high molecular weight polyethylene fiber, high-strength nylon yarn, aramid, and polyester yarn.
[0024] Furthermore, the multiple looped ropes may be the same or different in size.
[0025] Compared with the prior art, the advantages of this utility model are as follows:
[0026] 1. The double-ring interlocking rope ladder of this utility model can adjust the upper limit of the rope ladder's load by adjusting the number of turns of the annular yarn coil. As the number of turns increases, the load-bearing capacity of the rope ladder increases. Furthermore, the winding length and number of turns of the reinforcing layer and covering layer sequentially wound at the interlocking positions of adjacent annular ropes can be adjusted as needed. With the increase of winding length and number of turns, the load-bearing capacity of the rope ladder increases, and footboards of different lengths can be formed to meet different needs. The annular yarn coil is equipped with an outer ring, providing excellent wear-resistant protection to maintain the morphological stability and operational reliability of the internal annular yarn coil. The adjacent annular ropes and their annular yarn coils of this utility model form a chain-like interlocking structure. Even if the reinforcing layer and covering layer break or wear due to unexpected circumstances, the chain-like interlocking structure can still independently maintain the overall connectivity and basic function of the rope ladder, possessing extremely high failure protection capability. The double-ring interlocking rope ladder of this utility model has the advantages of being lightweight, high-strength, and simple to manufacture.
[0027] 2. The ring of this utility model is a tubular fabric with a hollow channel. The yarn is wound into a ring-shaped yarn loop along the hollow channel of the tubular fabric. The forming is simple, and there are no other connection marks except at the connection positions at both ends of the tubular fabric. The overall structure is neat and beautiful.
[0028] 3. The reinforcing layer and covering layer of this utility model are set at the stitching positions at both ends of the tubular fabric to avoid unnecessary stitching marks and maintain the neatness and beauty of the overall structure.
[0029] 4. The surface of the coating layer of this utility model is provided with an anti-slip structure, which improves the anti-slip performance of the double-ring interlocking rope ladder. Attached Figure Description
[0030] Appendix Figure 1 This is a schematic diagram of an existing rope ladder.
[0031] Appendix Figure 2 This is a schematic diagram of the structure of the yarn passing through the tubular fabric of this utility model.
[0032] Appendix Figure 3 This is a schematic diagram of the structure of the present invention, in which the yarn passes through the tubular fabric and is wound around it.
[0033] Appendix Figure 4 This is a schematic diagram of the structure of the ring rope of this utility model.
[0034] Appendix Figure 5 This is a schematic diagram of the yarn winding chain interlocking structure of this utility model.
[0035] Appendix Figure 6 This is a schematic diagram of the chain-like interlocking structure formed by multiple ring ropes of this utility model.
[0036] Appendix Figure 7 This is a schematic diagram of the reinforcing layer and the covering layer of the double-ring interlocking rope ladder of this utility model.
[0037] Appendix Figure 8 This is a schematic diagram of the structure of the double-ring interlocking rope ladder of this utility model.
[0038] The labels shown in the attached diagram:
[0039] 1. Circular rope; 11. Circular yarn loop; 111. Yarn; 12. Loop; 121. Tubular fabric; 2. Reinforcing layer; 3. Covering layer; 4. Drive wheel. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0041] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar words used in this utility model specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" 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 "connection" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," etc., 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.
[0042] like Figure 2-7 As shown, this utility model provides a double-ring interlocking rope ladder, including multiple interlocking ring ropes 1, a reinforcing layer 2, and a covering layer 3. The ring rope 1 includes a ring yarn loop 11 made of yarn 111 and a loop 12 disposed outside the ring yarn loop 11. Each ring rope 1 passes through another adjacent ring rope 1 to form a chain-like interlocking structure. The reinforcing layer 2 is wound around the interlocking positions of the adjacent ring ropes 1. The covering layer 3 covers the outer periphery of the reinforcing layer 2 and is fixed by sewing.
[0043] This invention relates to a double-ring interlocking rope ladder, where the load capacity can be adjusted by changing the number of turns of the annular yarn coil 11. As the number of turns increases, the load-bearing capacity of the rope ladder increases. The annular yarn coil 11 is housed within a ring 12, which provides excellent wear-resistant protection, maintaining the morphological stability and operational reliability of the internal annular yarn coil 11. A reinforcing layer 2 is wound at the interlocking position of adjacent annular ropes 1, and a covering layer 3 is wrapped around the outer periphery of the reinforcing layer 2 and fixed by sewing. The winding length and number of turns of the reinforcing layer 2 and the covering layer 3 can be set as needed. As the winding length and number of turns increase, the load-bearing capacity of the rope ladder increases. Furthermore, it provides footholds of different lengths for easy stepping, meeting various needs. The adjacent annular ropes 1 and their annular yarn loops 11 of this utility model rope ladder are interlocked by a chain. Even if the reinforcing layer 2 and the covering layer 3 break or wear due to accidental damage, the chain interlocking structure can still independently maintain the overall connectivity and basic function of the rope ladder, providing extremely high failure protection capability. The double-ring interlocking rope ladder of this utility model has the advantages of being lightweight, high-strength, and simple to manufacture.
[0044] In some embodiments, the loop 12 is formed by wrapping a flat fabric around the outside of the annular yarn loop 11 and then sewing them together. For example, the flat fabric can be various abrasion-resistant cloths, webbing, etc. After the yarn 111 is wound into an annular yarn loop 11, or after all the annular yarn loops 11 in the entire rope ladder are formed into a chain-like interlocking structure, the flat fabric is then wrapped around the outside of the annular yarn loop 11 and sewn together to secure it.
[0045] In other embodiments, such as Figure 2 , Figure 3 As shown, the loop 12 is a tubular fabric 121 with a hollow channel. The yarn 111 is threaded through the tubular fabric 121 and wound along the hollow channel of the tubular fabric 121 to form the annular yarn loop 11. In this embodiment, the loop 12 is an integral tubular fabric 121, which is simple to manufacture, and there are no other connection marks except at the connection positions at both ends of the tubular fabric 121, resulting in a neat and beautiful overall structure.
[0046] Furthermore, between two adjacent loop ropes 1, the starting end of the yarn 111 of the later-formed loop yarn coil 11 is wound through the earlier-formed loop yarn coil 11 / loop rope 1 to form a chain-like interlocking structure between the adjacent loop ropes 1.
[0047] Specifically, when the loop 12 is a flat fabric, the first yarn is first wound to form the first loop 11; then the nth yarn is passed through the (n-1)th loop 11 and wound to form the nth loop 11, where n is a natural number greater than 1; the n flat fabrics are sequentially rolled over the outside of the n loops 11 and sewn together to form n interlocking loops 1. Alternatively, after each loop 11 is wound, the flat fabric is rolled over the outside of the loop 11 and sewn together to form the loops 11.
[0048] When the loop 12 is a tubular fabric 121, the first yarn is first passed through the hollow channel of the first tubular fabric 121 and wound to form the first annular yarn loop 11; then the nth yarn is passed through the hollow channel of the nth tubular fabric 121 and the (n-1)th annular yarn loop 11 and wound to form the nth annular yarn loop 11, where n is a natural number greater than 1; the two ends of the n tubular fabrics 121 are overlapped and sewn together to form n annular ropes 1 in a chain-like interlocking structure. Alternatively, after each annular yarn loop 11 is wound, the two ends of its tubular fabric 121 are overlapped and sewn together.
[0049] In some embodiments, the two ends of the tubular fabric 121 are sewn together. Preferably, the two ends of the tubular fabric 121 are overlapped and then sewn together by a sewing machine. After the two ends of the tubular fabric 121 are overlapped, it is convenient to sew by a sewing machine and can also improve the connection strength.
[0050] Furthermore, the tubular fabric 121 includes one of hollow rope, water pipe rope, or hollow webbing. The hollow rope can be polyester braided rope or nylon braided tubing. The material, inner diameter, and wall thickness of the tubular fabric 121 can be selected differently according to different needs. For example, the inner diameter of the hollow rope is 3-8mm, and the wall thickness of the hollow rope is 1-2.5mm.
[0051] In some embodiments, the reinforcing layer 2 and the covering layer 3 are disposed at the stitching connection positions at both ends of the tubular fabric 121 to avoid excessive stitching marks and maintain the neatness and aesthetics of the overall structure.
[0052] Furthermore, the reinforcing layer 2 can be one or more of webbing, round rope, and yarn. The yarn can be high-strength yarns such as ultra-high molecular weight polyethylene fiber, high-strength nylon yarn, aramid yarn, and polyester yarn. Different materials can be selected to wrap the reinforcing layer 2 according to different needs. By wrapping the webbing, round rope, or high-strength yarn around the interlocking points of adjacent loop ropes 1, the structure of the rope ladder is initially fixed, which facilitates the subsequent sewing of the covering layer 3. Different numbers of turns and lengths can be wrapped as needed to provide different specifications of load-bearing capacity and stepping positions.
[0053] In some embodiments, the reinforcing layer 2 is sewn and fixed at the interlocking positions of adjacent loop ropes 1. Specifically, the reinforcing layer 2 can be sewn and fixed after it is wound to facilitate the fixation of the reinforcing layer 2, avoid misalignment, and improve the fixation strength of adjacent loop ropes 1.
[0054] In some embodiments, before the reinforcing layer 2 is wound, the adjacent annular ropes 1 are sewn together at the interlocking position to facilitate determining the connection position of the annular ropes 1, avoid misalignment, and facilitate the subsequent winding of the reinforcing layer 2.
[0055] In some embodiments, the surface of the covering layer 3 is provided with an anti-slip structure to improve the anti-slip performance of the double-ring interlocking rope ladder.
[0056] In some embodiments, the yarn 111 is one of ultra-high molecular weight polyethylene fiber, high-strength nylon yarn, aramid yarn, and polyester yarn.
[0057] In some embodiments, the plurality of the looped ropes 1 may be the same or different in size.
[0058] In this utility model, the stitching of the ring 12, the stitching connection between adjacent ring ropes 1, the stitching of the reinforcing layer 2, the covering layer 3, etc. can all be done by sewing machine. The sewing machine method includes, but is not limited to, DY sewing machine, flat sewing machine and computer sewing machine. The sewing machine pattern also includes, but is not limited to, herringbone pattern, straight line and overlock, the purpose of which is only to fix and increase the tensile strength. Different sewing machine methods can be selected according to the required tensile strength.
[0059] Taking the tubular fabric 121 as the ring 12 as an example, the manufacturing method of the double-ring interlocking rope ladder of this utility model is specifically described:
[0060] (1) Take a tubular fabric 121 and pass the starting end of the yarn 111 through the hollow channel of the tubular fabric 121 (e.g., Figure 2 (as shown);
[0061] (2) Then tie the starting end of yarn 111 to the yarn 111 that has not passed through the tubular fabric 121 (e.g. Figure 3 (as shown);
[0062] (3) Take an arc segment of the already formed loop yarn and press it onto the power wheel 4 of the winding machine (at this time, the tubular fabric 121 can be compressed to leave a gap for the loop yarn). Then let the power wheel 4 rotate and continuously let the yarn 111 be wound in the hollow channel of the tubular fabric 121 until the required number of windings is reached. Cut off the excess yarn 111 and connect the end of the yarn to the beginning end or tie the end of the yarn to the already formed loop yarn to form the required loop yarn 11.
[0063] (4) Cut the tubular fabric 121 to a length that matches the circumference of the loop yarn 11 (preferably, the length of the tubular fabric 121 should be longer than the circumference of the loop yarn 11), and after the two ends of the tubular fabric 121 are fitted, sew them together using a sewing machine to form the first loop rope 1 (e.g., Figure 4 (as shown);
[0064] (5) Figure 5 As shown, the nth tubular fabric 121 is taken, and the nth yarn is passed through the hollow channel of the nth tubular fabric 121 and through the (n-1)th loop rope 1 to form a loop yarn loop 11. Then, the two ends of the nth tubular fabric 121 are fitted together and sewn together by a sewing machine to form the nth loop rope 1, which is interlocked with the (n-1)th loop rope 1 in a chain-like structure (e.g., Figure 6 (As shown), n is a natural number greater than 1;
[0065] (6) Figure 7 As shown, the two loop ropes 1 are sewn together at their interlocking positions. Webbing, round rope, or strong yarn is wrapped around the interlocking positions of adjacent loop ropes 1, and the reinforcing layer 2 wrapped around is fixed to the interlocking area of the two loop ropes 1 with a sewing machine. Preferably, the interlocking positions are at the sewing points at both ends of the tubular fabric 121.
[0066] (7) Figure 7 As shown, a covering layer 3 is rolled around the outer periphery of the reinforcing layer 2 and sewn in place to form a footrest for easy stepping. The covering layer 3 can be made of webbing, and different numbers of turns can be rolled as needed. Multiple looped ropes 1 can be repeated in the above manner to prepare a rope ladder, such as... Figure 8 As shown.
[0067] Those skilled in the art should understand that the specific embodiments described above are merely examples and not limitations. Various modifications, combinations, partial combinations, and substitutions can be made to the embodiments of this utility model according to design requirements and other factors, as long as they are within the scope of the appended claims or their equivalents, and thus fall within the scope of the rights to be protected by this utility model.
Claims
1. A double-ring interlocking rope ladder, characterized in that, include: Multiple interlocking loops are connected in sequence. Each loop includes a loop of yarn wound around a yarn coil and a loop disposed outside the loop of yarn coil. Each loop passes through another loop adjacent to it to form a chain-like interlocking structure. A reinforcing layer is wound around the interlocking positions of the adjacent looped ropes; A covering layer is applied to the outer periphery of the reinforcing layer and then fixed by stitching.
2. The double-ring interlocking rope ladder according to claim 1, characterized in that, The loop is formed by wrapping a flat fabric around the outside of the annular yarn loop and then sewing them together.
3. The double-ring interlocking rope ladder according to claim 1, characterized in that, The loop is a tubular fabric with a hollow channel, and the yarn is threaded through the tubular fabric and wound into the annular yarn loop along the hollow channel of the tubular fabric.
4. The double-ring interlocking rope ladder according to claim 2 or 3, characterized in that, Between two adjacent looped ropes, the yarn of the later-formed looped yarn coil is wound through the earlier-formed looped yarn coil / looped rope to form a chain-like interlocking structure between the adjacent looped ropes.
5. The double-ring interlocking rope ladder according to claim 3, characterized in that, The two ends of the tubular fabric are sewn together. Or / and the tubular fabric includes one of hollow rope, water pipe rope, or hollow webbing.
6. The double-ring interlocking rope ladder according to claim 5, characterized in that, The two ends of the tubular fabric are overlapped and then stitched together. Or / and the reinforcing layer is disposed at the stitched connection positions at both ends of the tubular fabric.
7. The double-ring interlocking rope ladder according to claim 1, characterized in that, The reinforcing layer is one or more of webbing, round rope, and yarn; Or / and the reinforcing layer is stitched and fixed at the interlocking positions of the adjacent loop ropes; Or / and before the reinforcing layer is wound, the adjacent loops are stitched together at the interlocking position.
8. The double-ring interlocking rope ladder according to claim 1, characterized in that, The surface of the coating layer is provided with an anti-slip structure.
9. The double-ring interlocking rope ladder according to claim 1, characterized in that, The yarn is one of ultra-high molecular weight polyethylene fiber, high-strength nylon yarn, aramid, and polyester yarn.
10. The double-ring interlocking rope ladder according to claim 1, characterized in that, The multiple looped ropes may be the same or different in size.