A rainproof round suspender

Abstract

This utility model relates to the field of industrial ring-shaped flexible slings, and more particularly to a rainproof circular sling, comprising a sling body, the sling body including a sling rope core, both ends of which are connected to sling rings, a waterproof and wear-resistant sleeve fitted over the outer side of the sling rope core, and locking fittings fitted at both ends of the outer side of the waterproof and wear-resistant sleeve near the sling rings; the waterproof and wear-resistant sleeve is provided with a wear-resistant layer, an anti-corrosion layer, a moisture-proof layer, and a protective coating from the inside out. In this utility model, by adding a set of waterproof and wear-resistant sleeves to the outside of the sling rope core, the safety hazard of slings that are not treated in time after being rained on may suddenly fail under the next load, and also avoids the problem of cotton and linen slings losing 30%-50% of their strength and becoming prone to mold and failure after being exposed to water.

Description

Technical Field

[0001] This utility model relates to the field of industrial ring-shaped flexible sling technology, specifically a rainproof circular sling. Background Technology

[0002] Circular lifting slings are industrial ring-shaped soft slings primarily used in heavy equipment lifting. Made of polyester or nylon, they feature a ring structure with a wear-resistant outer sheath and a high-strength inner rope core. They are lightweight, flexible, corrosion-resistant, and non-conductive. The ring design allows for cyclic wear, extending their lifespan. The outer sheath color corresponds to the load capacity to aid in safety checks. They support vertical lifting, knotted lifting, and multi-angle combined lifting. The maximum length can be customized up to 30 meters. They are suitable for lifting precision instruments and applications requiring surface protection, and are gradually replacing wire rope slings and chain slings.

[0003] Existing round slings have a somewhat simple waterproof protection structure, making them susceptible to corrosion and damage, especially in outdoor operations and extreme weather conditions. Furthermore, cotton and linen slings lose 30%-50% of their strength when exposed to water and are prone to mold and failure, resulting in a shortened service life and an overall decline in functionality and safety.

[0004] Therefore, it is particularly important to design a rainproof circular sling to overcome the above-mentioned technical defects and improve the overall practicality. Utility Model Content

[0005] The purpose of this utility model is to provide a rainproof circular sling to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rainproof circular sling includes a sling body, the sling body including a sling rope core, both ends of the sling rope core being connected to sling rings, a waterproof and wear-resistant sleeve being fitted over the outside of the sling rope core, and locking fittings being fitted over both ends of the waterproof and wear-resistant sleeve near the sling rings, and the waterproof and wear-resistant sleeve being provided with a wear-resistant layer, an anti-corrosion layer, a moisture-proof layer and a protective coating from the inside out.

[0008] As a preferred embodiment of this utility model, the sling rope core is made of high-strength nylon material and is formed by endless winding. The sling rope core and the lifting ring are formed by a one-time weaving process without external splicing nodes.

[0009] The above technical solutions ensure structural airtightness and prevent the braided structure from loosening and unraveling.

[0010] As a preferred embodiment of this utility model, the internal structure size of the waterproof and wear-resistant sleeve is adapted to the external structure size of the sling rope core, and the sling rope core and the waterproof and wear-resistant sleeve are sewn and fixed together by X-shaped or box-shaped stitches, with the sewing depth penetrating the entire sling rope core.

[0011] Through the above technical solution, this seamless structure can ensure that the fiber is subjected to uniform force, avoid stress concentration, and avoid deformation at the joint due to elasticity differences.

[0012] As a preferred embodiment of this utility model, the locking component is a metal shackle-type accessory, which closes its open end with bolts or pins, and is fixed to the waterproof and wear-resistant sleeve by high-strength X-shaped stitch sewing process.

[0013] The above technical solution makes the waterproof and wear-resistant sleeve and the sling rope core more tightly, thereby improving the fixation ability and ensuring the wrapping effect of the waterproof and wear-resistant sleeve.

[0014] As a preferred embodiment of this utility model, the wear-resistant layer is made of rubber, the corrosion-resistant layer is made of polyester, the moisture-proof layer is made of nylon, and the protective coating is an anti-mildew and waterproof coating.

[0015] The above technical solution utilizes a rubber-based abrasion-resistant layer to prevent moisture penetration and a smooth outer surface for rapid drainage, thus preventing water accumulation and fiber aging. The corrosion-resistant layer is made of polyester, and the moisture-proof layer is made of nylon. These two layers are woven together at high density to form a physical barrier, providing corrosion resistance and moisture protection, making them suitable for humid environments such as ports and chemical plants. The protective coating is a mildew-proof and waterproof coating, further enhancing waterproofing and service life. This addresses the issue of lifting slings that, if not properly treated after rain, may suddenly fail under the next load, posing a safety hazard. It also avoids the problem of cotton and linen lifting slings experiencing a 30%-50% strength drop and becoming prone to mildew and failure after contact with water.

[0016] As a preferred embodiment of this utility model, the anti-corrosion layer and the moisture-proof layer are formed by high-density weaving, and the edges are treated with 200°C high-temperature hot-melt edge binding.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features a rainproof circular sling with a waterproof and wear-resistant sleeve wrapped around the outside of the sling rope core. The wear-resistant layer is made of rubber to prevent water penetration, and the smooth outer surface allows for rapid drainage, preventing water accumulation and fiber aging. The anti-corrosion layer is made of polyester, and the moisture-proof layer is made of nylon. These two layers are woven together at high density to form a physical barrier, providing corrosion resistance and moisture resistance. This makes it suitable for humid environments such as ports and chemical plants. The protective coating is a mildew-proof and waterproof coating, further enhancing waterproofness and service life. This design addresses the issue of slings that fail to be properly treated after rain, potentially leading to sudden failure under the next load. It also avoids the problem of cotton and linen slings experiencing a 30%-50% strength drop and easy mold growth after contact with water. Locking fasteners are clamped at both ends of the sling body, using metal shackles and secured to the sling body with high-strength sewing, making the waterproof and wear-resistant sleeve tighter against the sling rope core, thus improving fixation and ensuring the protective effect of the waterproof and wear-resistant sleeve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the separation structure of the main body and locking component of the hoisting sling of this utility model;

[0021] Figure 3 This is a cross-sectional view of the sling rope core and waterproof and wear-resistant sleeve of this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the waterproof and wear-resistant sleeve of this utility model.

[0023] In the diagram: 1. Lifting sling body; 2. Lifting sling rope core; 3. Waterproof and wear-resistant sleeve; 301. Wear-resistant layer; 302. Anti-corrosion layer; 303. Moisture-proof layer; 304. Protective coating; 4. Locking fitting; 5. Lifting ring. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0026] For examples, please refer to Figure 1-4 This utility model provides a technical solution:

[0027] A rainproof circular sling includes a sling body 1, the sling body 1 includes a sling rope core 2, both ends of the sling rope core 2 are connected to sling rings 5, a waterproof and wear-resistant sleeve 3 is sleeved on the outside of the sling rope core 2, and locking pieces 4 are sleeved on both ends of the waterproof and wear-resistant sleeve 3 near the sling rings 5.

[0028] The sling core 2 is made of high-strength nylon and formed by endless loop weaving. The sling core 2 and the lifting ring 5 are woven in one piece without external splicing nodes, ensuring structural airtightness and preventing the weaving structure from loosening and unraveling. The internal structure of the waterproof and wear-resistant sleeve 3 is adapted to the external structure of the sling core 2. The sling core 2 and the waterproof and wear-resistant sleeve 3 are sewn together with X-shaped or box-shaped stitches, and the stitch depth extends through the entire sling core 2. This seamless structure ensures that the fiber stress is evenly transmitted, avoids stress concentration, and prevents deformation at the connection due to elasticity differences. The locking piece 4 is a metal shackle-type accessory, which closes its open end with bolts or pins and is sewn together with the waterproof and wear-resistant sleeve 3 with a high-strength X-shaped stitch sewing process, making the waterproof and wear-resistant sleeve and the sling core more tightly, thereby improving the fixing ability and ensuring the wrapping effect of the waterproof and wear-resistant sleeve.

[0029] In this embodiment, the waterproof and wear-resistant sleeve 3 is provided with a wear-resistant layer 301, an anti-corrosion layer 302, a moisture-proof layer 303 and a protective coating 304 from the inside to the outside.

[0030] The wear-resistant layer 301 is made of rubber, the corrosion-resistant layer 302 is made of polyester, the moisture-proof layer 303 is made of nylon, and the protective coating 304 is an anti-mildew and waterproof coating. The corrosion-resistant layer 302 and the moisture-proof layer 303 are made of high-density woven material, and the edges are treated with 200℃ high-temperature hot-melt edge binding. The wear-resistant layer is made of rubber, which can block water penetration, and the smooth outer surface can drain water quickly, avoiding water accumulation that could lead to fiber aging. The corrosion-resistant layer is made of polyester, and the moisture-proof layer is made of nylon. The two are woven together with high density to form a physical barrier, which has anti-corrosion and moisture-proof properties, making it suitable for humid environments such as ports and chemical plants. The protective coating is an anti-mildew and waterproof coating, which further improves waterproofness and service life, solving the problem that lifting slings that are not treated in time after rain may suddenly fail under the next load. It also avoids the problem that the strength of cotton and linen lifting slings drops sharply by 30%-50% after being exposed to water, and that they are prone to mold and failure.

[0031] The working process of this utility model is as follows: When the rainproof circular sling structure designed in this scheme is in operation, a set of waterproof and wear-resistant sleeves 3 are added to the outside of the sling rope core 2. The wear-resistant layer 301 is made of rubber, which can block water penetration. The smooth outer surface can drain water quickly and avoid water accumulation leading to fiber aging. The anti-corrosion layer 302 is made of polyester, and the moisture-proof layer 303 is made of nylon. The two are woven together with high density to form a physical barrier, which has anti-corrosion and moisture-proof properties. It is suitable for humid environments such as ports and chemical plants. The protective coating 304 is a mildew-proof and waterproof coating, which further improves waterproofness and service life. It solves the problem that the safety hazard of the sling may suddenly fail when it is not treated in time after rain. It also avoids the problem that the strength of cotton and linen slings drops sharply by 30%-50% after being exposed to water and is prone to mildew failure. Locking parts 4 are clamped at both ends of the sling body 1. Metal shackle accessories are used and fixed to the sling body through high-strength sewing process, so that the waterproof and wear-resistant sleeve 3 is more tightly attached to the sling rope core 2, thereby improving the fixing ability and ensuring the wrapping of the waterproof and wear-resistant sleeve.

[0032] All standard parts used in this application can be purchased from the market. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art and are also general components, which are common knowledge in this field.

[0033] 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 alterations 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 rainproof circular sling, comprising a sling body (1), characterized in that: The lifting sling body (1) includes a lifting rope core (2), and lifting rings (5) are connected to both ends of the lifting rope core (2). A waterproof and wear-resistant sleeve (3) is sleeved on the outside of the lifting rope core (2). Locking pieces (4) are sleeved on both ends of the waterproof and wear-resistant sleeve (3) near the lifting rings (5). The waterproof and wear-resistant sleeve (3) is provided with a wear-resistant layer (301), an anti-corrosion layer (302), a moisture-proof layer (303), and a protective coating (304) from the inside to the outside.

2. The rainproof circular sling according to claim 1, characterized in that: The sling rope core (2) is made of high-strength nylon material and is formed by endless winding. The sling rope core (2) and the lifting ring (5) are formed by a one-time weaving process without external splicing nodes.

3. A rainproof circular suspender strap according to claim 2, characterized in that: The internal structure size of the waterproof and wear-resistant sleeve (3) is adapted to the external structure size of the sling rope core (2). The sling rope core (2) and the waterproof and wear-resistant sleeve (3) are sewn together with X-shaped or box-shaped stitches, and the sewing depth extends through the entire sling rope core (2).

4. A rainproof circular suspender strap according to claim 2, characterized in that: The locking component (4) is a metal shackle-type accessory. Its open end is closed by bolts or pins, and it is fixed to the waterproof and wear-resistant sleeve (3) by high-strength X-shaped stitch sewing process.

5. A rainproof circular sling according to claim 2, characterized in that: The wear-resistant layer (301) is made of rubber, the corrosion-resistant layer (302) is made of polyester, the moisture-proof layer (303) is made of nylon, and the protective coating (304) is a mildew-proof and waterproof coating.

6. A rainproof circular suspender strap according to claim 2, characterized in that: The anti-corrosion layer (302) and the moisture-proof layer (303) are formed by high-density weaving, and the edges are treated with 200°C high-temperature hot-melt edge banding.

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