A closed loop lanyard

Abstract

The application relates to the technical field of hanging ropes, in particular to a closed-loop hanging rope which comprises a main body structure and an adjusting structure. The main body structure is composed of a flexible connecting belt and a fixed end assembly, the two ends of the flexible connecting belt are connected with the fixed end assembly to form a closed loop, and a middle part is provided with an adjusting section embedded with an elastic buffer element; the adjusting structure realizes length adjustment and fixation through a locking mechanism. The fixed end assembly is provided with mounting seats on the two sides, and an internal sliding module cooperates with a tension spring to realize tension adjustment. The flexible connecting belt adopts an inner fiber woven layer and an outer wear-resistant coating to improve the bearing capacity and durability. The flexible connecting belt and the adjusting structure are arranged, the length of the hanging rope is flexibly adjusted, the adjusted state is fixed through the locking mechanism, and the loosening phenomenon caused by external force is avoided. The inner fiber woven layer and the outer wear-resistant coating of the flexible connecting belt improve the bearing capacity and durability of the hanging rope.

Description

Technical Field

[0001] This utility model belongs to the technical field of hanging rope devices, specifically a closed-loop hanging rope. Background Technology

[0002] In the use and operation of mechanical devices, the rope is a common auxiliary tool, and its structural design is of great significance in improving the safety and convenience of equipment operation. Currently, several lanyard products based on different materials and forms have appeared on the market. Most of these products may have shortcomings in terms of load-bearing capacity, durability, and installation methods, requiring adjustments based on specific scenarios. This results in low versatility and difficulty in meeting diverse usage needs.

[0003] Therefore, we made improvements and proposed a closed-loop hanging rope. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of existing lanyards in terms of load-bearing capacity, durability and installation methods, and to overcome their low versatility, so as to provide a closed-loop lanyard to meet diverse usage needs.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a closed-loop lanyard, comprising a main structure and an adjustment structure. The main structure includes a flexible connecting strip and a fixed-end assembly. Both ends of the flexible connecting strip are connected to the fixed-end assembly to form a closed loop. The adjustment structure is located in the middle region of the flexible connecting strip and is used to adjust the effective length of the flexible connecting strip, and a locking mechanism is used to fix the adjusted state. Mounting seats are provided on both sides of the fixed-end assembly, and sliding modules are provided inside the mounting seats for adjusting the tension of the flexible connecting strip.

[0006] The flexible connecting strip comprises an inner fiber braided layer and an outer wear-resistant coating. The inner fiber braided layer is woven from high-strength fiber material, and the outer wear-resistant coating is fixed to the surface of the inner fiber braided layer by a hot-pressing process. An adjustment section is provided in the middle region of the flexible connecting strip, and both ends of the adjustment section are connected to the rest of the flexible connecting strip via metal fasteners. An elastic cushioning element is embedded inside the adjustment section; one end of the elastic cushioning element is fixedly connected to the flexible connecting strip, and the other end is connected to the adjustment structure.

[0007] As a preferred technical solution of this application, the fixed end assembly includes a fixed base and a locking member. The top of the fixed base has two through slots, which are respectively used to accommodate the two ends of the flexible connecting strip. The locking member is fixed to the top of the fixed base by bolts, clamping the two ends of the flexible connecting strip in the through slots, thereby realizing the connection between the flexible connecting strip and the fixed end assembly.

[0008] As a preferred technical solution of this application, the adjustment structure includes an adjustment knob and a locking mechanism. The central axis of the adjustment knob passes through the middle of the adjustment section, and the outer side of the adjustment knob is provided with anti-slip texture. The locking mechanism includes a locking spring. The adjustment knob has internal threaded texture. One end of the locking spring contacts the adjustment knob, and the other end contacts the inner wall of the adjustment section. When the adjustment knob is rotated, the threaded texture engages with the threaded post inside the adjustment section, thereby fixing the adjusted state.

[0009] As a preferred technical solution of this application, the mounting base includes a slide rail and a limiting block. The slide rail has a groove inside, and the cross-section of the groove is T-shaped. The sliding module is slidably connected to the slide rail through the groove. The limiting block is fixed to both ends of the slide rail to limit the movement range of the sliding module.

[0010] As a preferred technical solution of this application, the sliding module includes a slider and a tension spring. The top of the slider has a protrusion that matches the shape of the sliding groove, and the slider is slidably connected to the sliding groove via the protrusion. One end of the tension spring is fixedly connected to the bottom of the slider, and the other end is fixedly connected to the middle region of the flexible connecting strip. When the flexible connecting strip is subjected to tension, the tension spring is compressed, thereby applying a counterforce to the flexible connecting strip and maintaining its tension.

[0011] As a preferred technical solution of this application, the elastic buffer element includes a helical spring, the two ends of which are fixed to the flexible connecting strip and the outer wall of the adjustment structure by welding, respectively. This is used to absorb impact force and reduce vibration.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The flexible connecting strap and adjustment structure allow for flexible adjustment of the lanyard length, while a locking mechanism secures the adjusted position, preventing loosening due to external forces. The inner fiber braided layer and outer wear-resistant coating of the flexible connecting strap enhance the lanyard's load-bearing capacity and durability, while the elastic buffer element embedded within the adjustment section effectively absorbs impact forces, reducing the effect of vibration on the lanyard. Furthermore, the sliding module and tension spring design ensure the flexible connecting strap remains taut under stress, further improving the lanyard's stability and safety. The overall structure is compact, easy to install, and adaptable to various usage scenarios, addressing the shortcomings of existing lanyards in terms of load-bearing capacity, durability, and versatility. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the fixed end assembly in this utility model.

[0015] Figure 3 This is a schematic diagram of the adjustment structure in this utility model.

[0016] Figure 4 In this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0017] The attached figures are labeled as follows: 1. Flexible connecting belt; 2. Fixed end assembly; 3. Adjustment structure; 4. Fixing base; 5. Through groove; 6. Locking element; 7. Adjustment knob; 8. Threaded pattern; 9. Locking spring; 10. Elastic buffer element; 11. Mounting base; 12. Slide rail; 13. Slide groove; 14. Slider; 15. Tension spring; 16. Inner fiber braided layer; 17. Outer wear-resistant coating. Detailed Implementation

[0018] This utility model provides a closed-loop hanging rope, the overall structure of which is as follows: Figure 1-4 As shown, the invention includes a flexible connecting strip 1, a fixed end assembly 2, and an adjustment structure 3. Both ends of the flexible connecting strip 1 are connected to the fixed end assembly 2, forming a closed loop. The adjustment structure 3 is located in the middle region of the flexible connecting strip 1 and is used to adjust the effective length of the flexible connecting strip 1 and fix its adjusted state. The specific embodiments of this invention will be described in detail below with reference to the accompanying drawings.

[0019] The flexible connecting strap 1 is the core component of the lanyard, comprising an inner fiber braided layer 16 and an outer abrasion-resistant coating 17. The inner fiber braided layer 16 is woven from high-strength fiber material, forming a mesh structure through a warp and weft interlacing process to ensure high tensile strength and flexibility. The outer abrasion-resistant coating 17 is fixed to the surface of the inner fiber braided layer 16 via a hot-pressing process. The outer abrasion-resistant coating 17 has a uniform thickness and is tightly bonded to the inner fiber braided layer 16 to enhance the durability of the flexible connecting strap 1. An adjustment section is located in the middle of the flexible connecting strap 1, and both ends of the adjustment section are connected to the rest of the flexible connecting strap 1 via metal fasteners. The metal fasteners are made of stainless steel and are fixed to both ends of the flexible connecting strap 1 via riveting to ensure a secure and reliable connection.

[0020] An elastic buffer element 10, including a helical spring, is embedded inside the adjusting section of the flexible connecting belt 1. The two ends of the helical spring are fixed to the outer walls of the flexible connecting belt 1 and the adjusting structure 3 respectively by welding. When the flexible connecting belt 1 is subjected to impact or vibration, the helical spring can absorb the impact force and reduce the impact of vibration on the hanging rope, thereby extending the service life of the hanging rope.

[0021] The fixed end assembly 2 includes a fixed base 4 and a locking member 6. The top of the fixed base 4 has two through slots 5, which are used to accommodate the two ends of the flexible connecting strip 1. The width of the through slots 5 is slightly larger than the thickness of the flexible connecting strip 1 to ensure that the flexible connecting strip 1 can be smoothly inserted into the through slots 5. The locking member 6 is fixed to the top of the fixed base 4 by bolts, clamping the two ends of the flexible connecting strip 1 within the through slots 5. The bottom of the locking member 6 has anti-slip textures to increase friction with the flexible connecting strip 1 and prevent the flexible connecting strip 1 from slipping during use.

[0022] The adjustment structure 3 includes an adjustment knob 7 and a locking mechanism. The central axis of the adjustment knob 7 runs through the middle of the adjustment section, and the outer side of the adjustment knob 7 is provided with anti-slip texture to facilitate manual rotation by the user. The locking mechanism includes a locking spring 9, and the interior of the adjustment knob 7 has threaded grooves 8. One end of the locking spring 9 contacts the adjustment knob 7, and the other end contacts the inner wall of the adjustment section. When the user rotates the adjustment knob 7, the threaded grooves 8 engage with the threaded post inside the adjustment section, thereby fixing the adjusted state. The function of the locking spring 9 is to provide a certain preload to the adjustment knob 7. The rotation direction of the adjustment knob 7 determines the change in the effective length of the flexible connecting strip 1; clockwise rotation shortens the effective length of the flexible connecting strip 1, and counterclockwise rotation increases the effective length of the flexible connecting strip 1.

[0023] Mounting bases 11 are located on both sides of the fixed end assembly 2. The mounting bases 11 contain sliding modules for adjusting the tension of the flexible connecting band 1. Mounting bases 11 include a slide rail 12 and limiting blocks. The slide rail 12 contains a groove 13 with a T-shaped cross-section. The sliding module is slidably connected to the slide rail 12 via the groove 13. Limiting blocks are fixed to both ends of the slide rail 12 to limit the movement range of the sliding module and prevent it from detaching from the slide rail 12. The sliding module includes a slider 14 and a tension spring 15. The top of the slider 14 has a protrusion that matches the shape of the groove 13. The slider 14 is slidably connected to the groove 13 via the protrusion. One end of the tension spring 15 is fixedly connected to the bottom of the slider 14, and the other end is fixedly connected to the middle region of the flexible connecting band 1. When the flexible connecting band 1 is subjected to tension, the tension spring 15 is compressed, thereby applying a counterforce to the flexible connecting band 1 and maintaining its tension. The tension of the tension spring 15 can be adjusted according to actual needs to adapt to different usage scenarios.

[0024] In practical applications, the lanyard of this invention can be used to support heavy objects or as a safety protection device. For example, in industrial production, the lanyard can be used to suspend tools or equipment, and its closed-loop circuit allows it to be easily fixed to a support point. When the length of the lanyard needs to be adjusted, the user only needs to rotate the adjustment knob 7 to achieve an effective change in the length of the flexible connecting band 1, and the adjusted state is fixed by the locking mechanism. The high-strength fiber braided layer 16 and the outer wear-resistant coating 17 of the flexible connecting band 1 ensure that the lanyard is not easily worn or broken during long-term use, while the elastic buffer element 10 effectively absorbs the impact force and reduces the impact of vibration on the lanyard. In addition, the design of the sliding module and the tension spring 15 allows the flexible connecting band 1 to maintain tension under stress, thereby improving the stability and safety of the lanyard.

[0025] The installation process of the hanging rope is as follows: First, insert both ends of the flexible connecting strip 1 into the through groove 5 of the fixing base 4, and then fix the locking piece 6 to the top of the fixing base 4 with bolts, clamping both ends of the flexible connecting strip 1 in the through groove 5. Next, install the sliding module in the sliding groove 13 of the mounting base 11, and fix one end of the tension spring 15 to the bottom of the slider 14, and the other end to the middle area of ​​the flexible connecting strip 1. Finally, install the adjustment knob 7 of the adjustment structure 3 in the middle of the adjustment section of the flexible connecting strip 1, and fix the adjusted state by the locking mechanism.

[0026] During use, all components of the lanyard work together to ensure stable and reliable performance. The high-strength fiber braided layer 16 and the outer wear-resistant coating 17 of the flexible connecting strip 1 provide excellent load-bearing capacity and durability. The elastic buffer element 10 effectively absorbs impact and reduces vibration. The adjustment structure 3 allows for flexible adjustment of the lanyard length, while the sliding module and tension spring 15 ensure the tension of the flexible connecting strip 1 under stress. Through the above design, the lanyard of this invention not only solves the shortcomings of existing lanyards in terms of load-bearing capacity, durability, and versatility, but also meets diverse usage needs.

[0027] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0028] In industrial production environments, lanyards are commonly used to suspend tools and equipment or as safety protection devices. For example, in high-altitude work scenarios, lanyards need to simultaneously meet requirements for load-bearing capacity, durability, and flexibility in length adjustment to ensure operational safety and convenience. The following section, with reference to the component numbers in the attached diagram, details the operating principles and procedures of lanyards in practical use.

[0029] First, the hanging rope is installed onto the support point via the fixing seat 4 of the fixing end assembly 2. Specifically, both ends of the flexible connecting strip 1 are inserted into the through groove 5 of the fixing seat 4. The width of the through groove 5 is slightly larger than the thickness of the flexible connecting strip 1 to ensure smooth insertion. Subsequently, the locking member 6 is fixed to the top of the fixing seat 4 with bolts. The anti-slip texture on the bottom of the locking member 6 contacts the surface of the flexible connecting strip 1 to increase friction and prevent the flexible connecting strip 1 from slipping during use.

[0030] Next, adjust the effective length of the lanyard to suit specific usage needs. This is done by manually rotating the adjustment knob 7 in the adjustment mechanism 3. The adjustment knob 7 has anti-slip grooves on its outer side for easy operation. When the user rotates the adjustment knob 7 clockwise, the threaded grooves 8 engage with the threaded post in the adjustment section, thus shortening the effective length of the flexible connecting strip 1; rotating it counterclockwise extends its effective length. The locking spring 9 provides preload to the adjustment knob 7, ensuring the locking mechanism is securely fixed after adjustment, preventing length changes due to external vibration or tension. This design allows the lanyard to flexibly adapt to usage scenarios at different heights or distances.

[0031] During the process of the lanyard bearing heavy objects, the inner fiber braided layer 16 and the outer wear-resistant coating 17 of the flexible connecting strip 1 work together to ensure that the lanyard has excellent load-bearing capacity and durability. The inner fiber braided layer 16 is woven from high-strength fiber material, and its warp and weft interwoven mesh structure can effectively distribute the force and avoid local stress concentration. The outer wear-resistant coating 17 is fixed to the surface of the inner fiber braided layer 16 through a hot-pressing process, and its uniform thickness and tight bonding characteristics further improve the wear resistance of the lanyard. When the lanyard is subjected to impact or vibration, the elastic buffer element 10 embedded in the adjustment section plays a role. The helical spring absorbs the impact force and reduces vibration, thereby extending the service life of the lanyard.

[0032] Meanwhile, the sliding module and tension spring 15 inside the mounting base 11 ensure that the flexible connecting band 1 remains taut under stress. When the rope carries a heavy load, the flexible connecting band 1 is under tension, the tension spring 15 is compressed, and a counterforce is applied to the flexible connecting band 1, thus counteracting any slack. The slider 14 is slidably connected to the slide groove 13 inside the slide rail 12 via a protrusion, and the limiting block is fixed to both ends of the slide rail 12 to prevent the sliding module from disengaging from the slide rail. This design ensures that the rope maintains stability and safety under dynamic stress.

[0033] In actual operation, the various components of the lanyard work together to ensure stable and reliable performance. For example, when the lanyard is used to suspend tools, the user can adjust the effective length of the flexible connecting strip 1 according to the weight of the tool and the suspension height, and fix it with a locking mechanism. The high-strength fiber braided layer 16 and the outer wear-resistant coating 17 of the flexible connecting strip 1 ensure that the lanyard is not easily worn or broken during long-term use, while the elastic buffer element 10 effectively absorbs the impact force generated when the tool moves or collides, reducing the impact of vibration on the lanyard. In addition, the design of the sliding module and the tension spring 15 ensures that the flexible connecting strip 1 always remains taut under stress, avoiding safety hazards caused by slack.

[0034] In summary, this utility model's closed-loop lanyard, through its rational structural design and material selection, overcomes the shortcomings of existing lanyards in terms of load-bearing capacity, durability, and versatility. Its flexible length adjustment function, excellent impact resistance, and stable tension enable it to be widely used in various scenarios such as industrial production and high-altitude operations, meeting diverse usage needs.

Claims

1. A closed-loop lanyard, characterized in that, The system includes a main structure and an adjustment structure. The main structure includes a flexible connecting strip (1) and a fixed end assembly (2). The two ends of the flexible connecting strip (1) are connected to the fixed end assembly (2) to form a closed loop. The adjustment structure is located in the middle area of ​​the flexible connecting strip (1) and is used to adjust the effective length of the flexible connecting strip (1) and fix the adjusted state through a locking mechanism. The fixed end assembly (2) has mounting seats (11) on both sides, and the mounting seats (11) have sliding modules inside.

2. The hanging rope for a closed-loop circuit according to claim 1, characterized in that, The flexible connecting strip (1) includes an inner fiber braided layer (16) and an outer wear-resistant coating (17). The inner fiber braided layer (16) is woven from high-strength fiber material. The outer wear-resistant coating (17) is fixed to the surface of the inner fiber braided layer (16) by hot pressing. The middle area of ​​the flexible connecting strip (1) is provided with an adjustment section. The two ends of the adjustment section are connected to the rest of the flexible connecting strip (1) by metal fasteners. An elastic buffer element (10) is embedded inside the adjustment section.

3. The hanging rope for a closed-loop circuit according to claim 2, characterized in that, The fixed end assembly (2) includes a fixed seat (4) and a locking member (6). The top of the fixed seat (4) has two through slots (5). The two through slots (5) are used to accommodate the two ends of the flexible connecting strip (1). The locking member (6) is fixed to the top of the fixed seat (4) by bolts, clamping the two ends of the flexible connecting strip (1) in the through slots (5).

4. The hanging rope for a closed-loop circuit according to claim 3, characterized in that, The adjustment structure includes an adjustment knob (7) and a locking mechanism. The central axis of the adjustment knob (7) passes through the middle of the adjustment section. The outer side of the adjustment knob (7) is provided with anti-slip texture. The locking mechanism includes a locking spring (9). The interior of the adjustment knob (7) is provided with threaded texture (8). One end of the locking spring (9) contacts the adjustment knob (7), and the other end contacts the inner wall of the adjustment section.

5. The hanging rope for a closed-loop circuit according to claim 4, characterized in that, The mounting base (11) includes a slide rail (12) and a limiting block. The slide rail (12) has a slide groove (13) inside. The slide groove (13) has a T-shaped cross-section. The sliding module is slidably connected to the slide rail (12) through the slide groove (13). The limiting block is fixed at both ends of the slide rail (12) to limit the movement range of the sliding module.

6. The hanging rope of a closed-loop circuit according to claim 5, characterized in that, The sliding module includes a slider (14) and a tension spring (15). The top of the slider (14) is provided with a protrusion that matches the shape of the groove (13). The slider (14) is slidably connected to the groove (13) through the protrusion. One end of the tension spring (15) is fixedly connected to the bottom of the slider (14), and the other end is fixedly connected to the middle area of ​​the flexible connecting strip (1).

7. The hanging rope for a closed-loop circuit according to claim 2, characterized in that, The elastic buffer element (10) includes a helical spring, the two ends of which are fixed to the outside of the flexible connecting strip (1) and the adjustment structure by welding process.

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