Rescue rope
By repeatedly winding fiber ropes to form a seamless structure, combined with oval pull rings and buckle designs, the safety hazards and heavy weight of traditional trailer ropes under sudden tension are solved, achieving a high-strength, lightweight, and wear-resistant rescue rope effect.
Patent Information
- Application Number
- CN202520364179.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-04
AI Technical Summary
Traditional tow ropes are prone to instantaneous impact under sudden tension, posing a safety hazard. In addition, steel wire ropes are heavy, prone to rust, and inconvenient to carry.
The rope body is made of fiber rope and is formed into a jointless structure through repeated winding. It is combined with elliptical pull rings and buckle designs. The inside is equipped with a core layer support group, an inner braiding group and an outer covering group, and a rubber protective sleeve is added to the outer layer. It is precisely woven using a six-axis linkage braiding machine to form a high-strength and lightweight rescue rope.
It achieves zero instantaneous impact under sudden tensile force, avoids weak points in the joint, is lightweight and easy to carry, and has flexibility and wear resistance, making it suitable for rescue in complex terrain.
Smart Images
Figure CN223893124U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rescue rope. Background Technology
[0002] Traditional tow ropes are mostly made of static materials, which are prone to instantaneous impact under sudden tension, posing a safety hazard. Problems such as excessively rapid start of the towing vehicle and failure to regularly check the condition of the rope are frequent, which can exacerbate the risk of rope wear or breakage, especially in complex terrain.
[0003] In the existing technology, steel wire rope is commonly used as a trailer rope. Although steel wire rope has high strength, it has disadvantages such as being heavy, prone to rusting, and inconvenient to carry. Utility Model Content
[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a rescue rope with an improved structure.
[0005] To achieve the above objectives, this utility model provides a rescue rope, comprising a rope body, a first pull ring, and a second pull ring. The rope body is repeatedly wound along its length to a predetermined size using a fiber rope method, and pull ring structures are formed at both ends. The first pull ring and the second pull ring are respectively engaged in the pull ring structures at both ends.
[0006] Both the first and second pull rings are elliptical in shape, with loops at both their long and short diameter ends. During the weaving process, the fiber rope used for weaving passes through the loops, thus forming an integral structure between the pull rings and the rope body.
[0007] Furthermore, the cross-sections of the first and second pull rings are semi-circular, and the rope body is disposed inside the semi-circular structure.
[0008] Furthermore, an extension is provided at one long diameter end of the first pull ring and the second pull ring, and the extension is configured as an arc-shaped transition structure when the rope body is installed in conjunction with the first pull ring and the second pull ring.
[0009] Furthermore, the first and second pull rings are provided with five buckles. The first and second buckles are respectively provided at the two short diameter ends, the third buckle is provided at the long diameter end, and the fourth and fifth buckles are respectively provided on the extension.
[0010] Furthermore, the rope body comprises, from the inside out, a core layer bearing assembly, an inner layer braiding assembly, an outer layer covering assembly, and a rubber protective sleeve.
[0011] Furthermore, the core layer support assembly is made by merging four sets of fiber ropes in a straight line.
[0012] Furthermore, the inner layer weaving group is made of four sets of fiber ropes woven in a three-dimensional spiral.
[0013] Furthermore, the outer covering group is made of two sets of fiber ropes twisted in opposite directions.
[0014] Furthermore, an adhesive layer is provided between the core layer support group, the inner layer braiding group, and the outer layer covering group.
[0015] Furthermore, both ends of the rope body are wrapped with woven fabric layers, which completely cover both ends of the rope body.
[0016] This utility model rescue rope adopts endless loop technology inside, without any real joints, effectively avoiding the problem of the weak point of ordinary fabric ropes at the joint position. At the same time, it has the advantages of being more flexible, lighter, and easier to carry. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the pull ring structure;
[0019] Figure 3 This is a top view of the pull ring structure;
[0020] Figure 4 This is a bottom view of the pull ring structure;
[0021] Figure 5 This is a schematic diagram of the internal structure of the rope body; Detailed Implementation
[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.
[0026] like Figures 1-5 As shown, this utility model provides a rescue rope, which includes a rope body 1, a first pull ring 2, and a second pull ring 3.
[0027] The rope body 1 comprises, from the inside out, a core layer bearing assembly 13, an inner layer braiding assembly 14, an outer layer covering assembly 15, and a rubber protective sleeve 16. The core layer bearing assembly is made by merging several sets of fiber ropes 5 in a straight line, the inner layer braiding assembly is made by three-dimensional spiral weaving of several sets of fiber ropes 5, and the outer layer covering assembly is made by reverse winding and weaving of several sets of fiber ropes 5.
[0028] The rope body 1 is repeatedly wound along its length to a predetermined size using a fiber rope method, forming pull ring structures 4 at both ends. The first pull ring 2 and the second pull ring 3 are respectively engaged in the pull ring structures 4 at both ends. Both the first pull ring 2 and the second pull ring 3 are elliptical structures, with loops at both their long and short diameter ends. During the weaving process, the fiber rope 5 used for weaving the rope body 1 passes through the loops, thus forming an integral structure between the pull rings and the rope body 1. The aforementioned repeated winding refers to the repeated winding and weaving of the fiber rope along the length direction of the rope body 1 until the diameter after weaving reaches the required size of the rope body 1. Due to the repeated winding and weaving, a jointless structure can be formed, utilizing the friction between the fibers in the fiber rope to achieve the target strength, realizing a seamless and stitchless process.
[0029] Both ends of the rope body 1 are wrapped with woven fabric layers 17, which completely cover both ends of the rope body 1. By setting the woven fabric layers 17, the protection of the ends of the rope body 1 can be effectively enhanced, and the strength of the ends of the rope body 1 will also be correspondingly enhanced.
[0030] In this invention, the main body of the rope body 1 is made of fiber rope 5. As the primary load-bearing component, the fiber rope 5 offers advantages over steel wire rope, including greater flexibility, lighter weight, and easier portability. However, through structural design and weaving, the fiber rope 5 still achieves very high load-bearing strength, meeting the needs of practical use. In practical applications, to further enhance the strength of the rope body 1, an adhesive layer can be provided between the core load-bearing assembly 13, the inner braiding assembly 14, and the outer covering assembly 15, depending on actual requirements.
[0031] The first pull ring 2 and the second pull ring 3 have a circular arc-shaped cross-section 6, and the rope body 1 is set inside the circular arc-shaped structure, which facilitates the connection and installation of the rope body 1 with the first pull ring 2 and the second pull ring 3. An extension 7 is provided at one long diameter end of the first pull ring 2 and the second pull ring 3. The extension 7 is set as an arc-shaped transition structure when the rope body 1 is installed with the first pull ring 2 and the second pull ring 3. This arc-shaped transition structure facilitates the bending and fixing of the end of the rope body 1 when forming the pull ring structure, and also makes the product more aesthetically pleasing.
[0032] To strengthen the fixation between the rope body 1 and the first pull ring 2 and the second pull ring 3, and to prevent the first pull ring 2 and the second pull ring 3 from falling off under heavy loads during use, in this embodiment, five loops are provided on the first pull ring 2 and the second pull ring 3. The first loop 8 and the second loop 9 are respectively located at the two short-diameter ends, the third loop 10 is located at the long-diameter end, and the fourth loop 11 and the fifth loop 12 are respectively located on the extension portion 7. Part of the fiber rope in the rope body 1 can pass through the above five loops, thereby effectively fixing the rope body 1 to the first pull ring 2 and the second pull ring 3.
[0033] Meanwhile, in order to make it easier to wind the fiber rope on the first pull ring 2 and the second pull ring 3, a guide port 18 is provided at the end of the extension 7 of the first pull ring 2 and the second pull ring 3. When the fiber rope winds through the protruding part of the first pull ring 2 and the second pull ring 3, the fiber rope will be easily folded and braided at the end by the guide port 18 to form the main body of the rescue rope.
[0034] This embodiment uses 10 sets of fiber ropes 5 as an example to illustrate the relevant structure of the rescue rope of this utility model. In practical applications, multiple sets of fiber ropes 5 can be woven according to requirements. Each set of fiber ropes 5 can be a single fiber or composed of multiple fibers.
[0035] In this embodiment, the 10 groups of fiber ropes 5 are divided into different groups, and each fiber rope 5 has a specific path and function during the weaving process. Furthermore, the fiber ropes are repeatedly wound along their length to ensure no joints are formed, while simultaneously creating a loop structure. This involves the grouping of the fiber ropes 5, the planning of the folded path, and the cross-winding method.
[0036] This application rationally allocates 10 groups of fiber ropes 5 into a core layer, inner braiding layer, and outer braiding layer, specifically as a core layer bearing group, an inner braiding group, and an outer layer covering group. The core layer bearing group is responsible for bearing the main tensile force, while the inner braiding group and the outer layer covering group are responsible for fixation and torsion resistance. When the fiber ropes are repeatedly wound along their length, the fiber ropes 5 need to be symmetrically distributed to ensure that the loop structure at both ends is uniform.
[0037] An adhesive layer is provided between the core layer bearing assembly, the inner braided assembly, and the outer covering assembly. In this application, resin is used for bonding and curing. The heat curing step needs to ensure that the resin penetrates evenly between each layer, resulting in a strong structure after curing. In practical applications, a woven bag is also placed on the outer layer of the outer covering assembly to form a protective layer, which serves to prevent damage to the fiber rope 5 and also to prevent the fiber rope 5 from scratching other items or users.
[0038] Among them, the fiber ropes are in groups 1-4, and the target insertion position is the gap between the opposite core layers. The insertion is set by straight insertion (0° angle).
[0039] Five groups of fiber ropes, 5-8, are used for weaving. The target location for weaving is the intersection of adjacent weaving layers, and the weaving is carried out in the form of sinusoidal cross (±30°).
[0040] Five groups of fiber ropes, numbered 9-10, are used for weaving. The target location for weaving is the outer layer covering channel, which is woven in a spiral winding manner.
[0041] In actual production, a six-axis linkage braiding machine is required to achieve precise control of the braiding. In this invention, a spatial trajectory interference algorithm is used to ensure that the 10 sets of fiber ropes 5 move without conflict in three-dimensional space, ultimately forming a jointless rescue rope with a diameter of 4-5cm, a load capacity of 9000 kg, and a breaking test load of 125000 kg.
[0042] The relevant dynamic equations realized in a six-axis linkage knitting machine are as follows:
[0043] Path equation for core layer load-bearing group (fiber rope group 5, 1-4):
[0044] x(t) = v·t
[0045] y(t)=0
[0046] z(t) = A·sin(ωt)
[0047] The variable is time t, and the parameters include velocity v, amplitude A, and angular frequency ω. It should be noted that x represents the horizontal position, y is fixed at 0, and z represents the vertical vibration. v is the moving speed, which is also the wire feeding speed, i.e., the linear speed of the fiber rope 5 along the axial direction. A is the amplitude, and ω is the angular frequency of the vibration, which is related to the frequency f by ω = 2πf.
[0048] The three-dimensional helical equation of the inner braided group (5 groups of fiber ropes, 5-8):
[0049] x = R·cos(θ)
[0050] y = R·sin(θ)
[0051] z = P·θ / 2π
[0052] Where R is the helix radius, i.e., the circumference radius of the fiber rope 5. θ is the rotation angle, i.e., the cumulative rotation angle around the central axis. P is the pitch, i.e., the distance traveled per revolution. It is necessary to explain how these parameters affect the path of the fiber rope 5, forming the helical structure.
[0053] Outer layer covering group (fiber rope group 5, 9-10) reverse winding equation:
[0054] θ9=+k·z
[0055] θ 10 =-k·z
[0056] Where k is the winding coefficient, i.e., the amount of rotation corresponding to a unit length of axial displacement. z is the axial position, i.e., the coordinate along the length of fiber rope 5. θ9 and θ 10 These represent the rotation angles of the two sets of fiber ropes 5, with positive and negative signs indicating winding in opposite directions to create a covering effect.
[0057] In actual production, the linear velocity v of the core layer must satisfy the following condition with the angular velocity dθ / dt of the screw assembly: v=P / 2π·dθ / dt, in order to ensure the stability of the screw pitch.
[0058] The core layer amplitude A must be less than 30% of the fiber rope diameter 5, and the product of amplitude and angular frequency A·ω≤5mm / s to prevent resonance.
[0059] The outer layer winding density is determined by the value of k: number of windings per millimeter = k / 2π.
[0060] In the process of weaving using a six-axis linkage weaving machine
[0061] v: Controlled by the speed of the wire feeding servo motor;
[0062] ω: The driving frequency of the linear vibrator;
[0063] R: Guide wheel radial adjustment mechanism setting;
[0064] P: Controlled by the ratio of spindle speed to wire feeding speed;
[0065] k: Determined by the reduction ratio of the winding guide wheel.
[0066] When using this rescue rope, assess the condition of the stranded vehicle before rescue. If the vehicle has bottomed out, clear as much mud, sand, snow, etc., as possible from under the vehicle. Before connecting the rescue rope, ensure it is undamaged and avoid contact with hot surfaces or sharp objects. Do not allow the rescue rope to become knotted or twisted. Use a soft buckle of 9T or higher and a metal buckle of 5T or higher to connect to the vehicle.
[0067] This utility model has the following advantages:
[0068] 1. The rescue rope uses endless loop technology inside, without any real joints, effectively avoiding the problem of the weak point of ordinary fabric ropes at the joint position;
[0069] 2. Excellent cut resistance, effectively reducing the risk of cuts, which is the biggest fear for fabric ropes;
[0070] 3. Waterproof, stain-proof, and oil-proof, effectively avoiding the problem of reduced load capacity when ordinary fabric ropes are wet;
[0071] 4. Low temperature resistance, effectively preventing the fabric from hardening and becoming brittle in low-temperature environments, thus reducing load and losing elasticity;
[0072] 5. Natural flag-holding function: Due to the thick outer rubber protective sleeve, it has a flag-holding property after the rope breaks, effectively preventing injury caused by the risk of swinging.
[0073] 6. The large opening at one end of the rescue rope allows it to be directly attached to a tow hook or tow ball in an emergency.
[0074] 7. It has wear-resistant and cut-resistant properties, with an elongation of 23%, and can be rinsed directly after use.
Claims
1. A rescue rope, characterized in that, It includes a rope body, a first pull ring, and a second pull ring. The rope body is repeatedly wound along its length to a set size using a fiber rope method, and pull ring structures are formed at both ends. The first pull ring and the second pull ring are respectively engaged in the pull ring structures at both ends. Both the first and second pull rings are elliptical in shape, with loops at both their long and short diameter ends. During the weaving process, the fiber rope used for weaving passes through the loops, thus forming an integral structure between the pull rings and the rope body.
2. The rescue rope as described in claim 1, characterized in that, The first and second pull rings have semi-circular cross-sections, and the rope body is located inside the semi-circular structure.
3. The rescue rope as described in claim 1, characterized in that, An extension portion is provided at one long diameter end of the first pull ring and the second pull ring. The extension portion is configured as an arc-shaped transition structure when the rope body is installed in conjunction with the first pull ring and the second pull ring.
4. The rescue rope as described in claim 3, characterized in that, The first and second pull rings are provided with 5 ring buckles. The first and second ring buckles are respectively provided at the two short diameter ends, the third ring buckle is provided at the long diameter end, and the fourth and fifth ring buckles are respectively provided on the extension part.
5. The rescue rope as described in claim 1, characterized in that, The rope body comprises, from the inside out, a core layer bearing assembly, an inner layer braiding assembly, an outer layer covering assembly, and a rubber protective sleeve.
6. The rescue rope as described in claim 5, characterized in that, The core layer bearing assembly is made by merging four sets of fiber ropes in a straight line.
7. The rescue rope as described in claim 5, characterized in that, The inner layer weaving group is made of four sets of fiber ropes woven in a three-dimensional spiral.
8. The rescue rope as described in claim 5, characterized in that, The outer covering is made of two sets of fiber ropes twisted in opposite directions.
9. The rescue rope as described in claim 5, characterized in that, An adhesive layer is provided between the core layer support group, the inner layer braiding group, and the outer layer covering group.
10. The rescue rope as described in claim 1, characterized in that, Both ends of the rope body are wrapped with woven fabric layers, which completely cover both ends of the rope body.