Safety harness for replacing a trailer rope cable flag

Abstract

The utility model discloses a safety protection rope of replacing trailer rope cable flag, which comprises a main rope and an auxiliary rope, the auxiliary rope is arranged in parallel with the main rope, the deformation capacity of the auxiliary rope is greater than that of the main rope, and the auxiliary rope and the main rope are independently anchored at the trailer connecting end and the towed vehicle connecting end; the main rope and the auxiliary rope are connected through a flexible sleeve, and the main rope and the auxiliary rope can slide along the length direction of the flexible sleeve when subjected to external tension. The main rope and the auxiliary rope are connected through the flexible sleeve, the deformation capacity of the auxiliary rope is greater than that of the main rope, and the auxiliary rope and the main rope are independently anchored at the trailer connecting end and the towed vehicle connecting end; so that the auxiliary rope and the flexible sleeve form a protection structure of the main rope. The auxiliary rope is arranged in parallel along the full length of the main rope and connected through the flexible sleeve, and the rebound and swing energy of the broken rope section are effectively inhibited through the deformation capacity (the length redundancy or elastic deformation of the auxiliary rope provides the buffer), and the fatal defect of the limited protection range of the traditional single-point cable flag is overcome.

Description

Technical Field

[0001] This utility model relates to the field of vehicle towing rescue safety protection technology, specifically to a safety protection rope that can replace the trailer rope flag. Background Technology

[0002] In vehicle towing rescue scenarios, cable flags are widely used to provide a certain degree of safety protection when the tow rope breaks unexpectedly. The core principle is to use counterweights attached to the tow rope to increase the local mass of the rope segment near the break point, thereby suppressing the violent rebound and swinging of the broken rope segment and reducing the risk of injury to people or damage to the vehicle.

[0003] However, the existing application of cable flags has significant and multifaceted limitations:

[0004] 1. Cable flags are an additional safety device, and operators may easily forget to hang them.

[0005] 2. Typically, only one cable flag is suspended in the middle of the tow rope. Since the tow rope can break at any point, single-point protection cannot cover the entire length of the rope, and the cable flag is ineffective against breaks far from its suspension point.

[0006] 3. When the tow rope remains intact but the trailer hook, U-hook, or other metal connector breaks or detaches, the broken portion (often containing heavy metal parts) will rebound with tremendous kinetic energy, sweeping or being thrown into the air. Cable flags offer virtually no effective protection against this type of failure mode involving rigid components, and such failures are often more destructive.

[0007] 4. During towing, especially during dynamic operations such as forward thrusting, reversing, and forward thrusting again, the cable flag will violently rise, rotate, and swing with the rope. This continuous impact can easily cause the cable flag itself to break or fall off. Once the cable flag is broken, its internal counterweight will scatter, and the entire device will fail.

[0008] 5. When there is a height difference between the towing vehicle and the towed vehicle, the cable flag will slide towards the lower vehicle under the action of gravity, deviating from the preset midpoint of the rope segment, resulting in a weakening or complete loss of its protective function.

[0009] 6. Theoretically, evenly suspending multiple cable flags along the tow rope can increase the protective coverage area. However, in practice, this would result in excessively heavy ropes, extremely cumbersome operation (requiring frequent rope threading and securing), affect the normal extension and tension of the ropes, and significantly increase costs, thus making it impractical. Even with multiple suspension points, if the breakage point is precisely at the cable flag's fixing point, the cable flag will still be ineffective. Utility Model Content

[0010] Therefore, this utility model provides a safety rope to replace the trailer rope flag, in order to solve the above-mentioned problems in the prior art.

[0011] To achieve the above objectives, this utility model provides the following technical solution:

[0012] According to a first aspect of this utility model, a safety rope that replaces trailer rope flags includes:

[0013] The main rope is used to connect the trailer and the towed vehicle and to transmit the main pulling force.

[0014] An auxiliary rope is arranged parallel to the main rope. The auxiliary rope has a greater deformation capacity than the main rope and is independently anchored to the main rope at both the trailer connection end and the trailer connection end.

[0015] A flexible sleeve is fitted over the outside of the main rope and the auxiliary rope to connect them, and the main rope and the auxiliary rope can slide along their length within the flexible sleeve when subjected to external tension.

[0016] Furthermore, the length of the auxiliary rope is greater than the length of the main rope. When the main rope breaks, the auxiliary rope provides a buffer space for the main rope through its own length redundancy.

[0017] Furthermore, the auxiliary rope has the same length as the main rope and is made of a material with an elastic modulus. When the main rope breaks, the auxiliary rope absorbs the impact energy of the main rope through elastic deformation.

[0018] Furthermore, the flexible sleeve is a split-type rope loop binding strap, which is composed of several rope loops, and the several rope loops are arranged laterally at intervals on the outside of the main rope and the auxiliary rope.

[0019] Furthermore, the flexible sleeve is an integrated rope loop binding strap.

[0020] Furthermore, the auxiliary rope segment between two adjacent rope loops is arc-shaped or U-shaped.

[0021] Furthermore, the rope loop is a hook-and-loop self-adhesive cable tie, and the adhesive side of the hook-and-loop self-adhesive cable tie is positioned away from the main rope and the auxiliary rope.

[0022] This invention has the following advantages: The main rope and auxiliary rope are connected by a flexible sleeve. The deformation capacity of the auxiliary rope is greater than that of the main rope. At the same time, it is independently anchored to the main rope at both the trailer connection end and the towed vehicle connection end. Thus, the auxiliary rope and the flexible sleeve form a protective structure for the main rope and are integrated with the main rope. No additional suspension or installation is required, which fundamentally avoids the hidden danger of operators forgetting to use safety devices and simplifies the towing preparation process.

[0023] The auxiliary ropes are arranged parallel to the main rope along its entire length and connected by flexible sleeves. Regardless of where the main rope breaks, the auxiliary rope segment near the break point can immediately intervene, effectively suppressing the rebound and swaying energy of the broken rope segment through its deformation capacity (its length redundancy or elastic deformation provides buffering). This overcomes the fatal flaw of traditional single-point cable flags having limited protection range.

[0024] Redundant buffering: When the length of the auxiliary rope is greater than that of the main rope, at the moment the main rope breaks, the auxiliary rope uses the slack section formed by its length redundancy to provide buffer space, prolong the impact time, and reduce the peak impact force.

[0025] Elastic energy absorption: When the auxiliary rope is made of elastic material and has the same length as the main rope, after the main rope breaks, the auxiliary rope directly absorbs the impact kinetic energy through its own large elastic deformation, thus efficiently dissipating energy.

[0026] The auxiliary rope is independently anchored to the main rope at both ends of the towing process (the trailer connection end and the towed vehicle connection end). Even in the extreme case of metal connectors such as trailer hooks and U-hooks breaking (not the main rope breaking), the broken metal parts and the connected rope segments will still be effectively restrained by the auxiliary rope at at least one end, significantly reducing the risk of high-speed rebound, sweeping, or throwing. Attached Figure Description

[0027] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0028] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0029] Figure 1 A schematic diagram of a safety rope that can replace a trailer rope flag, provided for some embodiments of this utility model. Figure 1 .

[0030] Figure 2 This invention provides a safety rope as an alternative to trailer rope flags in some embodiments. Figure 1 Enlarged view of section C in the image.

[0031] Figure 3A schematic diagram of a safety rope that can replace a trailer rope flag, provided for some embodiments of this utility model. Figure 2 .

[0032] Figure 4 This invention provides a safety rope as an alternative to trailer rope flags in some embodiments. Figure 3 Enlarged view of part D in the image.

[0033] Figure 5 A schematic diagram of a safety rope that can replace a trailer rope flag, provided for some embodiments of this utility model. Figure 3 .

[0034] In the diagram: 1. Main rope; A. Trailer; B. Trailed vehicle; 2. Auxiliary rope; 3. Flexible sleeve. Detailed Implementation

[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. 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 protection scope of this utility model.

[0036] Example 1

[0037] like Figures 1 to 2 As shown, a safety rope, an alternative to a trailer rope flag, according to a first aspect embodiment of this utility model, includes a main rope 1, an auxiliary rope 2, and a flexible sleeve 3. Wherein:

[0038] Main rope 1: Used to connect trailer A and towed vehicle B and transmit the main pulling force, it is the core force-bearing component during towing. One end of the main rope 1 is fixedly connected to the trailer hook of trailer A, and the other end is fixedly connected to the trailer hook of towed vehicle B.

[0039] Auxiliary Rope 2: Parallel to the main rope 1, the auxiliary rope 2 has a greater deformation capacity than the main rope 1. One end of the auxiliary rope 2 can be fixedly connected to a sturdy location such as the half-shaft, bow, or main beam of trailer A, and the other end can be fixedly connected to a sturdy location such as the half-shaft, bow, or main beam of the towed vehicle B. Both ends of the auxiliary rope 2 are independently anchored to the main rope 1 at both the trailer connection end and the towed vehicle connection end. It cannot be simultaneously installed on the trailer hooks of trailer A and towed vehicle B to avoid the main rope 1 and auxiliary rope 2 simultaneously flying up and rebounding if the trailer hook breaks. The length of the auxiliary rope 2 is greater than the length of the main rope 1. When the main rope 1 breaks, the auxiliary rope 2 provides a buffer space for the main rope 1 through its own length redundancy.

[0040] Flexible Sleeve 3: The cross-section of the flexible sleeve 3 is typically a circular ring. It is fitted over the outside of the main rope 1 and the auxiliary rope 2, connecting them to each other. Both the main rope 1 and the auxiliary rope 2 can slide along their length within the flexible sleeve 3 when subjected to external tension. The flexible sleeve 3 is a split-type rope loop binding strap, composed of several rope loops arranged laterally at intervals on the outside of the main rope 1 and the auxiliary rope 2. The rope segment of the auxiliary rope 2 between two adjacent rope loops is arc-shaped or U-shaped. The rope loops are self-adhesive hook and loop straps, with the adhesive surface facing away from the main rope 1 and the auxiliary rope 2.

[0041] In the above embodiments, it should be noted that the main rope 1 can be made of high-strength fiber materials, such as high-strength nylon, polyester, nylon, high-elastic yarn, etc., to ensure that it can withstand the huge tensile force during the dragging process.

[0042] The auxiliary rope 2 can be made of a material with a certain degree of toughness, such as elastic fiber, and its length is designed to be greater than that of the main rope 1. The length of the auxiliary rope 2 is about 30% to 100% greater than that of the main rope 1 to form sufficient length redundancy. The split rope loop binding strap structure of the flexible sleeve 3 is easy to install and adjust, and the design of the hook-and-loop self-adhesive strap ensures a firm connection between the rope loop and the main rope 1 and the auxiliary rope 2, while also facilitating disassembly.

[0043] Optionally, the elongation of auxiliary rope 2 can be about 3% to 5% greater than that of the main rope.

[0044] The technical effects achieved by the above embodiments are as follows: the main rope 1 and the auxiliary rope 2 are connected by a flexible sleeve 3. The deformation capacity of the auxiliary rope 2 is greater than that of the main rope 1, and it is integrated with the main rope 1. No additional suspension or installation operation is required, which fundamentally avoids the hidden danger of operators forgetting to use safety devices and simplifies the towing preparation process.

[0045] The auxiliary rope 2 is arranged in parallel along the entire length of the main rope 1 and connected by the flexible sleeve 3. No matter where the main rope 1 breaks, the auxiliary rope 2 segment near the break point can immediately intervene. The slack segment formed by its length redundancy provides buffer space, prolongs the impact time, reduces the peak impact force, and effectively suppresses the rebound and swing energy of the broken rope segment, overcoming the fatal defect of the limited protection range of traditional single-point cable flags.

[0046] The auxiliary rope 2 is independently anchored to the main rope 1 at both ends of the towing. Even in extreme cases where metal connectors such as trailer hooks or U-hooks break, the broken metal parts and the connected rope segments will still be effectively restrained by the auxiliary rope 2 at at least one end, significantly reducing the risk of high-speed rebound, sweeping or throwing.

[0047] Example 2

[0048] like Figures 3 to 5As shown, a safety rope that replaces the trailer rope flag includes all the contents of Embodiment 1, except that when the length of the auxiliary rope 2 is the same as that of the main rope 1, the auxiliary rope 2 is made of a material with an elastic modulus, and the elongation of the auxiliary rope 2 is about 100% to 300% greater than that of the main rope. When the main rope 1 breaks, the auxiliary rope 2 absorbs the impact energy of the main rope 1 through elastic deformation. At this time, the flexible sleeve 3 is an integrated rope loop binding strap.

[0049] Optionally, the length of auxiliary rope 2 can be about 10% to 20% longer than that of the main rope.

[0050] In the above embodiments, it should be noted that the auxiliary rope 2 is made of a material with a high elastic modulus, such as high-elasticity rubber fiber, which can produce a large elastic deformation when the main rope 1 breaks. The structure of the integrated rope loop binding strap makes the flexible sleeve 3 wrap the main rope 1 and the auxiliary rope 2 more tightly and evenly, which helps the main rope 1 and the auxiliary rope 2 to slide and transmit force within the flexible sleeve 3.

[0051] The technical effects achieved by the above embodiments are as follows: when the main rope 1 breaks, the auxiliary rope 2 directly absorbs the impact kinetic energy through its own large-scale elastic deformation, efficiently dissipating energy and further enhancing the suppression effect on the rebound and swinging of the broken rope segment. The structure of the integrated rope loop binding strap makes the overall performance of the safety rope more stable, reduces the loosening or falling off problems that may occur due to the separate rope loops, and improves the reliability of use.

[0052] In Examples 1 and 2, the weight of the main rope 1 is typically greater than that of the auxiliary rope 2. In extreme cases, if the trailer A experiences excessive forward momentum due to failure to brake in time after the main rope 1 breaks, and the auxiliary rope 2 breaks due to insufficient length redundancy or elastic deformation failure, the broken main rope 1 will play a crucial role using its own weight and its connection structure with the flexible sleeve 3: it can effectively pull and suppress the rebound and swinging of the auxiliary rope 2 after its breakage. This mutual restraint between the main rope 1 and the auxiliary rope 2 is universal; regardless of the location of the breakage point of the auxiliary rope 2, this effect remains stable and effective.

[0053] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

[0054] The terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, shall also be considered within the scope of implementation of this utility model.

Claims

1. A safety rope that replaces trailer rope flags, characterized in that, include: The main rope is used to connect the trailer and the towed vehicle and to transmit the main pulling force. An auxiliary rope is arranged parallel to the main rope. The auxiliary rope has a greater deformation capacity than the main rope and is independently anchored to the main rope at both the trailer connection end and the trailer connection end. A flexible sleeve is fitted over the outside of the main rope and the auxiliary rope to connect them, and the main rope and the auxiliary rope can slide along their length within the flexible sleeve when subjected to external tension.

2. The safety rope for replacing trailer rope flags according to claim 1, characterized in that, The auxiliary rope is longer than the main rope. When the main rope breaks, the auxiliary rope provides a buffer space for the main rope through its own length redundancy.

3. The safety rope for replacing trailer rope flags according to claim 1, characterized in that, The auxiliary rope is the same length as the main rope and is made of a material with an elastic modulus. When the main rope breaks, the auxiliary rope absorbs the impact energy of the main rope through elastic deformation.

4. A safety rope as an alternative to a trailer rope flag according to claim 2, characterized in that, The flexible sleeve is a split-type rope loop binding strap, which is composed of several rope loops, and the several rope loops are arranged laterally at intervals on the outside of the main rope and the auxiliary rope.

5. A safety rope as an alternative to a trailer rope flag according to claim 3, characterized in that, The flexible sleeve is an integrated rope loop binding strap.

6. A safety rope as an alternative to a trailer rope flag according to claim 4, characterized in that, The auxiliary rope segment between two adjacent rope loops is arc-shaped or U-shaped.

7. A safety rope as an alternative to a trailer rope flag according to claim 4 or 6, characterized in that, The rope loop is a hook-and-loop self-adhesive cable tie, and the adhesive side of the hook-and-loop self-adhesive cable tie is set away from the main rope and the auxiliary rope.

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