Safety belt cut-resistant tether

Abstract

The utility model relates to the technical field of safety belt accessories, concretely to a safety belt anti-cut connecting rope, which comprises a rope body, a hook connected to one end of the rope body, and a buffer bag connected to the other end of the rope body, and the rope body comprises, from inside to outside, a load-bearing core layer, an anti-cut buffer layer, and a wear-resistant protective layer; the buffer bag is connected to the connecting holes at both ends, the rope body penetrates through the connecting holes and is connected to one end of the buffer bag, and the other end of the buffer bag is connected to an O-shaped buckle through the connecting hole; the hook is provided with a through hole that is adapted to the rope body, and the rope body is connected to the hook by sewing. The utility model solves the problem of poor anti-cut performance of conventional ordinary nylon ropes and polyester ropes by setting an anti-cut buffer layer, realizes the effect of resisting the cutting of sharp objects such as reinforcement bars, metal components, and metal edges and corners in transportation, avoids the rope body from being cut or broken when it is in contact with sharp objects and is subjected to tension, and prevents safety accidents caused by the loss of the protective effect of the safety belt.

Description

Technical Field

[0001] This utility model relates to the field of seat belt accessories technology, specifically a seat belt anti-cut connecting rope. Background Technology

[0002] Safety belts, as an important piece of equipment to ensure personnel safety, are widely used in many fields such as construction, high-altitude operations, and transportation. As a key component of safety belts, the connecting rope plays an important role in connecting the main body of the safety belt to the fixing point and transmitting tension. Its performance directly affects the overall safety protection effect of the safety belt.

[0003] In practical use, safety belt connecting ropes often come into contact with sharp objects, such as steel bars and metal components on construction sites, and metal edges in transportation. Traditional safety belt connecting ropes are mostly made of ordinary nylon rope, polyester rope, or steel wire rope. Ordinary nylon and polyester ropes have poor cut resistance and are easily cut or even broken when in contact with sharp objects and subjected to tension, causing the safety belt to lose its protective function and leading to accidents. While steel wire rope has high strength, it lacks flexibility, making it difficult to handle during use and prone to wear when connected to other components. Furthermore, its surface lacks effective protective structures, posing a risk of breakage under impact or friction. In addition, the connection structure at both ends of traditional connecting ropes usually uses simple knots or ordinary buckles, resulting in low connection strength. Under significant tension, these connections are prone to loosening or detachment, further reducing the safety of the safety belt.

[0004] Therefore, developing a cut-resistant connecting rope for safety belts with excellent cut resistance, good flexibility, and a strong and reliable connection has become an urgent problem to be solved in the field of safety belt accessories. Utility Model Content

[0005] (a) Technical problems to be solved The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a safety belt anti-cut connecting rope, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides a safety belt cut-resistant connecting rope, comprising: a rope body, one end of which is connected to a hook, and the other end of which is connected to a cushioning pouch; the rope body, from the inside out, includes a load-bearing core layer, a cut-resistant cushioning layer, and a wear-resistant protective layer; both ends of the cushioning pouch are connected to connecting holes, the rope body passes through the connecting holes and connects to one end of the cushioning pouch, and the other end of the cushioning pouch is connected to an O-ring through the connecting hole; one end of the hook has a through hole adapted to the rope body, and the rope body and the hook are sewn together.

[0007] Optionally, the cut-resistant buffer layer is wrapped around the outside of the load-bearing core layer. The cut-resistant buffer layer is woven from cut-resistant yarn. The cut-resistant yarn is a cut-resistant layer made of a mixture of metal wire and polyester wire, and the mass ratio of metal wire in polyester wire is 20% to 40%.

[0008] Optionally, the wear-resistant protective layer is wrapped around the outside of the cut-resistant buffer layer, the wear-resistant protective layer is made of polyester, and the thickness of the wear-resistant protective layer is 0.5 to 1.2 mm.

[0009] Optionally, the load-bearing core layer is made of multiple strands of high-strength fiber filaments twisted together, wherein the high-strength fiber filaments are polyester fiber or polypropylene fiber.

[0010] Optionally, the cushioning pack consists of tear strips and polyester filaments.

[0011] (III) Beneficial Effects Compared with the prior art, this utility model provides a cut-resistant connecting rope for seat belts, which has the following beneficial effects: 1. This utility model solves the problem of poor cut resistance of traditional ordinary nylon ropes and polyester ropes by setting a cut-resistant buffer layer, and achieves the effect of resisting the cutting of sharp objects such as iron bars, metal components and metal edges in construction and transportation. It avoids the rope from being cut or broken when it comes into contact with sharp objects and is under tension, and prevents the safety belt from losing its protective function and causing safety accidents. 2. This utility model features a load-bearing core layer made of multiple strands of high-strength fiber filaments twisted together. It also employs a "bidirectional twisting" process, which ensures that the load-bearing core layer has high strength to meet tensile requirements while also taking into account good flexibility. This solves the problems of poor flexibility and difficulty in operation of traditional simple steel wire ropes, making it convenient for operators to flexibly use the connecting rope for fixing operations in different scenarios. 3. This utility model features a buffer pack composed of tear strips and polyester filaments, which effectively buffers sudden tensile or impact forces. When the connecting rope is subjected to sudden tensile or impact forces, the buffer pack reduces the impact by tearing the energy through the tear strips, thereby mitigating the impact force on the human body and the rope, reducing the risk of injury to personnel and the risk of the rope breaking due to instantaneous overload. At the same time, the reinforced connecting holes and rounded corners at both ends of the buffer pack also enhance the load-bearing capacity and wear resistance of the connection parts, ensuring the stable performance of the buffer function. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the rope structure of this utility model; Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the buffer pack and O-ring structure of this utility model.

[0013] In the diagram: 1. Rope; 2. Buffer pack; 3. O-ring; 4. Hook; 5. Abrasion-resistant protective layer; 6. Cut-resistant buffer layer; 7. Load-bearing core layer; 8. Connecting hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Please refer to Figures 1 to 4 According to an embodiment of this utility model, a technical solution is provided: a safety belt anti-cut connecting rope, comprising: a rope body 1, one end of which is connected to a hook 4, and the other end of which is connected to a buffer pack 2. The rope body 1 includes, from the inside to the outside, a load-bearing core layer 7, an anti-cut buffer layer 6, and an abrasion-resistant protective layer 5. Both ends of the buffer pack 2 are connected to connecting holes 8. The rope body 1 passes through the connecting holes 8 and is connected to one end of the buffer pack 2. The other end of the buffer pack 2 is connected to an O-ring buckle 3 through the connecting holes 8. One end of the hook 4 has a through hole adapted to the rope body 1, and the rope body 1 and the hook 4 are sewn together.

[0016] The buffer plate structure described above, with the buffer pack 2 filled with elastic material, allows the elastic material to absorb some energy through compression deformation when the connecting rope is subjected to sudden tension or impact, thus mitigating the impact on the human body and rope 1 and reducing the risk of injury. The reinforced connecting holes 8 at both ends of the buffer pack 2 are thickened and rounded. The thickened structure enhances the load-bearing capacity of the connecting holes 8, preventing breakage due to excessive local stress; the rounded corners reduce friction between the rope 1 and the edges of the connecting holes 8, preventing wear on the rope 1. The load-bearing core layer 7, as the core load-bearing component of the rope 1, ensures high load-bearing capacity. While maintaining strength, the rope also offers flexibility. The cut-resistant buffer layer 6 can withstand the cutting of sharp objects and cushion external impacts, while the wear-resistant protective layer 5 protects the internal structure from daily friction damage and extends the service life of the rope 1. One end of the hook 4 has a through hole that perfectly matches the diameter of the rope 1, preventing the rope 1 from shaking or shifting within the through hole and reducing local stress concentration caused by insufficient contact area. After the rope 1 is inserted into the through hole, it is sewn together. High-strength adhesive fills the tiny gaps between the two, further enhancing the connection strength while preventing moisture, dust, and other impurities from entering and avoiding internal corrosion.

[0017] In this embodiment, the cut-resistant buffer layer 6 is wrapped around the outside of the load-bearing core layer 7. The cut-resistant buffer layer 6 is woven from cut-resistant yarn. The cut-resistant yarn is a cut-resistant layer made of a mixture of metal wire and polyester wire, and the mass ratio of metal wire in polyester wire is 20% to 40%.

[0018] Metal wire possesses excellent cut resistance, directly preventing sharp objects such as reinforcing bars and metal edges from damaging the internal load-bearing core layer 7, thus providing core protection for cut resistance. Polyester filament, on the other hand, has good flexibility and elasticity, avoiding the problems of stiffness and easy bending and breakage of pure metal braided layers. It can also buffer local pressure through deformation when subjected to external impact, thus fulfilling the dual functions of "cut resistance" and "buffering". The mixed design of metal wire and polyester filament with a mass ratio of 20% to 40% provides the cut-resistant buffer layer 6 with sufficient cut resistance, effectively resisting the cutting of sharp objects in construction and transportation scenarios, and preventing safety accidents caused by rope 1 breaking due to cuts. On the other hand, the addition of polyester filament ensures the flexibility of the cut-resistant buffer layer 6, allowing the rope 1 to be bent flexibly, making it convenient for operators to use in complex scenarios such as confined spaces and multi-angle fixation, improving operational convenience and reducing the risk of operational errors caused by the stiffness of the rope 1.

[0019] The wear-resistant protective layer 5 is wrapped around the outside of the cut-resistant buffer layer 6. The wear-resistant protective layer 5 is made of polyester and has a thickness of 0.5 to 1.2 mm. The load-bearing core layer 7 is made of multiple strands of high-strength fiber filaments twisted together. The high-strength fiber filaments are polyester fiber or polypropylene. The buffer pack 2 is composed of tear strips and polyester filaments.

[0020] Polyester fiber is characterized by high strength and high modulus, excellent tensile properties, impact resistance, and resistance to deformation, maintaining structural stability under heavy loads. Polypropylene, on the other hand, is lightweight and resistant to chemical corrosion, while its tensile strength also meets the load-bearing requirements of the safety belt connecting rope. Both materials outperform traditional nylon ropes in load-bearing capacity and are far more flexible than steel wire ropes, allowing them to adapt to bending operations in complex scenarios. The abrasion-resistant protective layer 5 of polyester material, with its excellent abrasion resistance and weather resistance, effectively reduces friction wear on the rope 1 during daily use, preventing premature exposure and damage to the internal cut-resistant buffer layer 6 and load-bearing core layer 7, significantly extending the overall service life of the rope 1. The reasonable thickness of 0.5-1.2mm ensures protective effectiveness while preventing the rope 1 from being too heavy or thick, reducing the burden of wearing and operation. The extended service life means that companies do not need to frequently replace the connecting rope, reducing the procurement and maintenance costs of safety protection equipment, and also reducing the amount of discarded rope. 1. It minimizes environmental pollution and aligns with green environmental protection principles. The tear strip has excellent tensile and tensile strength, allowing it to absorb some energy through slow fracture when subjected to sudden impact, preventing the impact force from being directly transmitted to the human body. The polyester filaments possess excellent flexibility and strength, which can fix the tear strip into shape and enhance the overall structural stability of the buffer pack 2, preventing it from disintegrating during stress. The combination of these two elements ensures that the buffer pack 2 achieves both a cushioning effect and structural reliability. The buffer pack 2, composed of the tear strip and polyester filaments, can absorb some of the impact force through the slow fracture of the tear strip when a person falls accidentally or experiences emergency braking, significantly reducing the instantaneous impact on the human body and decreasing the probability of serious injuries such as fractures and internal organ damage. At the same time, the fixing effect of the polyester filaments on the tear strip ensures the structural stability of the buffer pack 2 during stress, preventing it from disintegrating and failing, further improving the reliability of the cushioning protection and providing users with additional safety assurance.

[0021] Working principle: In daily use, the hook 4 end securely connects the rope 1 to the fixing point through precise through holes and double reinforcement. The buffer bag 2 end connects the rope 1 to the main body of the safety belt through thickened rounded corner connecting holes 8 and O-ring buckles 3, laying a solid safety foundation. In the event of contact with danger, the outer polyester abrasion-resistant protective layer 5 resists frictional wear, and the middle layer of metal wire and polyester filament mixed cut-resistant buffer layer 6 blocks sharp cuts, protecting the core structure. In the event of a sudden impact, the load-bearing core layer 7, composed of 6-12 strands of high-strength fiber twisted together, stably bears the load. The elastic material inside the buffer bag 2, together with the "tear band + polyester filament" structure, absorbs energy and reduces injury to the human body. The whole system solves the pain points of traditional rope 1 through "connection-protection-buffering" linkage, achieving full-scene safety coverage. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cut-resistant connecting rope for seat belts, characterized in that, include: The rope (1) has a hook (4) at one end and a buffer bag (2) at the other end. The rope (1) includes a load-bearing core layer (7), a cut-resistant buffer layer (6), and a wear-resistant protective layer (5) from the inside to the outside. The buffer bag (2) has connection holes (8) at both ends. The rope (1) passes through the connection holes (8) and is connected to one end of the buffer bag (2). The other end of the buffer bag (2) is connected to an O-ring buckle (3) through the connection holes (8). The hook (4) has a through hole at one end that is adapted to the rope body (1), and the rope body (1) and the hook (4) are sewn together.

2. The safety belt cut-resistant connecting rope according to claim 1, characterized in that: The cut-resistant buffer layer (6) is wrapped around the outside of the load-bearing core layer (7). The cut-resistant buffer layer (6) is woven from cut-resistant yarn. The cut-resistant yarn is a cut-resistant layer made of mixed metal wire and polyester wire, and the mass ratio of metal wire in polyester wire is 20% to 40%.

3. The safety belt cut-resistant connecting rope according to claim 1, characterized in that: The wear-resistant protective layer (5) is wrapped around the outside of the cut-resistant buffer layer (6). The wear-resistant protective layer (5) is made of polyester and has a thickness of 0.5 to 1.2 mm.

4. The safety belt cut-resistant connecting rope according to claim 1, characterized in that: The load-bearing core layer (7) is made of multiple strands of high-strength fiber filaments twisted together, and the high-strength fiber filaments are polyester fiber or polypropylene.

5. A safety belt cut-resistant connecting rope according to claim 4, characterized in that: The buffer pack (2) consists of tear strips and polyester filaments.

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