Lifting belt with high stretch resistance

Abstract

The utility model discloses a hoisting belt with strong stretch resistance, which comprises a closed flat tensile belt ring, an auxiliary central drawstring and two metal suspension clasps, the closed flat tensile belt ring is sleeved on the outer side of the auxiliary central drawstring, the closed flat tensile belt ring is elongated into a strip, and the two metal suspension clasps are arranged on the outer side of the auxiliary central drawstring. The outer side of the closed flat tensile belt ring is fixedly connected with tightening buckles arranged at equal intervals. According to the utility model, the double-layer structure is formed, the inner auxiliary center drawstring improves the wear resistance, the radian of the outer side of the auxiliary center drawstring is increased, the contact area with the inner side surface of the end part of the closed flat tensile belt ring is increased, and the tensile and wear-resistant capability of the closed flat tensile belt ring is improved; the three-layer structure is tightly attached through the tightening buckle, storage is convenient, the structure is compact, and therefore the device has the advantages that the three-layer double-material combined structure is adopted, the performance of the lifting belt is improved, the tensile capacity is improved, and meanwhile the metal lifting buckle is convenient to replace and install.

Description

Technical Field

[0001] This utility model relates to the field of lifting slings, and more specifically, to a lifting sling with strong tensile strength. Background Technology

[0002] Standard lifting slings (synthetic fiber lifting slings) are generally made of high-strength polyester filaments, possessing multiple advantages such as high strength, wear resistance, oxidation resistance, and UV resistance. They are also soft, non-conductive, and non-corrosive (harmless to the human body), making them widely used in various fields. There are many types of lifting slings; standard lifting slings (based on appearance) are divided into four categories: loop-through, loop-flat, double-eye loop-through, and double-eye flat.

[0003] Current lifting slings generally use only a single material of synthetic fiber for support, resulting in limited performance and difficulty in increasing the upper limit of the sling's strength. Furthermore, the lifting buckles at both ends are usually welded closed, making them inconvenient to disassemble and replace. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a lifting sling with strong tensile strength.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A lifting sling with high tensile strength includes a closed flat tensile sling loop, an auxiliary central tension sling, and two metal hooks. The closed flat tensile sling loop is sleeved onto the outside of the auxiliary central tension sling. The closed flat tensile sling loop is stretched into a strip. The outside of the closed flat tensile sling loop is fixedly connected with equidistantly arranged tightening buckles. The tightening buckles tighten the closed flat tensile sling loop and make its interior fit against the outside of the auxiliary central tension sling.

[0007] As a further description of the above technical solution: the metal hook includes a pin, a U-shaped ring and a limiting member. The pin is horizontally inserted through the end of the auxiliary central pull strap. The two ends of the U-shaped ring are movably sleeved on the outside of the pin. The limiting member is connected and cooperates with the open section of the pin.

[0008] As a further description of the above technical solution: the limiting member includes a fastening bolt and a limiting ring, one end of the fastening bolt passes through and is threaded to the inside of the pin, and the inner side of the limiting ring is fixedly connected to the outer side of the fastening bolt.

[0009] As a further description of the above technical solution: the auxiliary center pull belt is a long polyester ribbon.

[0010] As a further description of the above technical solution: the closed flat tensile belt loop is a nylon belt.

[0011] As a further description of the above technical solution: the U-shaped lifting ring is a high-strength steel ring.

[0012] Compared with existing technologies, the advantages of this utility model are:

[0013] This solution uses a three-layer, dual-material combination to form a lifting sling, and utilizes pins and U-shaped lifting rings to achieve convenient disassembly and replacement. This allows the device to have the advantages of a three-layer, dual-material combination structure, which improves the performance of the lifting sling, increases its tensile strength, and facilitates the replacement and installation of metal lifting buckles. Attached Figure Description

[0014] Figure 1 This is a frontal cross-sectional view of the present invention.

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure of section A in the middle;

[0017] Figure 4 This is a top view cross-sectional structural diagram of the present invention.

[0018] Explanation of the labels in the diagram:

[0019] 1. Closed flat tensile belt loop; 2. Auxiliary central pull belt; 3. Metal hook; 31. Pin; 32. U-shaped hook; 33. Limiting component; 331. Fastening bolt; 332. Limiting ring; 4. Tightening buckle. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model;

[0021] Please see Figures 1-4 In this utility model, a lifting sling with strong tensile strength includes a closed flat tensile strap ring 1, an auxiliary central tension strap 2, and two metal hooks 3. The closed flat tensile strap ring 1 is sleeved on the outside of the auxiliary central tension strap 2. The closed flat tensile strap ring 1 is stretched into a strip. The outside of the closed flat tensile strap ring 1 is fixedly connected with tightening buckles 4 arranged at equal intervals. The tightening buckles 4 tighten the closed flat tensile strap ring 1 and make its interior fit against the outside of the auxiliary central tension strap 2.

[0022] In this invention, a closed flat tensile strength belt ring 1 serves as the main body of the lifting sling, with its inner side conforming to form a double-layered long strip shape and its sides flattened. An auxiliary central tension belt 2 is placed inside the closed flat tensile strength belt ring 1, forming a three-layer combination. Combining the material properties of both enhances the overall tensile strength of the lifting sling. Simultaneously, a double-layer structure is formed at the end of the connecting metal buckle 3, where the lifting sling experiences the greatest friction. The inner auxiliary central tension belt 2 improves wear resistance, while the outer curvature of the auxiliary central tension belt 2 increases, aligning with the inner end of the closed flat tensile strength belt ring 1. The increased surface contact area enhances the tensile and abrasion resistance of the closed flat tensile belt ring 1. The tightening buckle 4 ensures a tight fit between the three layers, facilitating storage and structural compactness. This allows the device to utilize a three-layer, dual-material composite structure, improving the performance and tensile strength of the lifting sling. Furthermore, the metal buckle facilitates easy replacement and installation. This addresses the shortcomings of existing lifting slings, which typically use only a single synthetic fiber support, resulting in limited performance, difficulty in increasing the upper limit of karaoke strength, and the fact that the buckles at both ends are generally welded shut, making disassembly and replacement inconvenient.

[0023] Please refer to Figures 1 to 4, wherein: the metal hook 3 includes a pin 31, a U-shaped ring 32 and a limiting member 33. The pin 31 is horizontally inserted through the end of the auxiliary central pull strap 2. The two ends of the U-shaped ring 32 are movably sleeved on the outside of the pin 31. The limiting member 33 is connected and cooperates with the open section of the pin 31.

[0024] In this utility model, the pin 31 is inserted into the inside of the end of the central auxiliary pull strap 2, and the U-shaped ring 32 is inserted and connected at the same time, so that the two ends of the U-shaped ring 32 are located on the outside of the auxiliary central pull strap 2, forming a connection. The limiting member 33 is used to lock and position the open end of the pin 31, so that the overall connection structure is stable.

[0025] Please refer to Figures 1 to 4, wherein: the limiting member 33 includes a fastening bolt 331 and a limiting ring 332. One end of the fastening bolt 331 passes through and is threaded to the inside of the pin 31, and the inner side of the limiting ring 332 is fixedly connected to the outer side of the fastening bolt 331.

[0026] In this utility model, the fastening bolt 331 is threaded into the open end of the pin 31, and the end of the pin is closed and limited by the limiting ring 332.

[0027] Please refer to Figures 1-4, where: the auxiliary center pull strap 2 is a long polyester ribbon.

[0028] In this invention, the auxiliary central pull strap 2 is made of long polyester ribbon, which gives the entire lifting strap good abrasion resistance and UV resistance.

[0029] Please refer to Figures 1-4, where: the closed flat tensile belt loop 1 is a nylon belt.

[0030] In this invention, by using a nylon belt as the closed flat tensile strap ring 1, the entire lifting sling possesses the excellent strength and ductility of a nylon lifting sling, enabling it to withstand greater impact forces.

[0031] Please refer to Figures 1-4, where: U-shaped lifting ring 32 is a high-strength steel ring.

[0032] In this invention, the U-shaped lifting ring 32 is made of high-strength steel ring, which improves the overall strength of the metal lifting ring.

[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A lifting sling with high tensile strength, characterized in that: It includes a closed flat tensile belt loop (1), an auxiliary central pull belt (2) and two metal hooks (3). The closed flat tensile belt loop (1) is sleeved on the outside of the auxiliary central pull belt (2). The closed flat tensile belt loop (1) is stretched into a strip. The outside of the closed flat tensile belt loop (1) is fixedly connected with tightening buckles (4) arranged at equal intervals. The tightening buckles (4) tighten the closed flat tensile belt loop (1) and make its interior fit against the outside of the auxiliary central pull belt (2).

2. The lifting sling with high tensile strength according to claim 1, characterized in that: The metal hook (3) includes a pin (31), a U-shaped ring (32) and a limiting member (33). The pin (31) is horizontally inserted through the end of the auxiliary center pull strap (2). The two ends of the U-shaped ring (32) are movably sleeved on the outside of the pin (31). The limiting member (33) is connected and cooperates with the open section of the pin (31).

3. A lifting sling with high tensile strength according to claim 2, characterized in that: The limiting member (33) includes a fastening bolt (331) and a limiting ring (332). One end of the fastening bolt (331) passes through and is threaded to the inside of the pin (31). The inner side of the limiting ring (332) is fixedly connected to the outer side of the fastening bolt (331).

4. A lifting sling with high tensile strength according to claim 1, characterized in that: The auxiliary center pull strap (2) is a long polyester ribbon.

5. A lifting sling with high tensile strength according to claim 1, characterized in that: The closed flat tensile belt loop (1) is a nylon belt.

6. A lifting sling with high tensile strength according to claim 2, characterized in that: The U-shaped lifting ring (32) is a high-strength steel ring.

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