Flexible lifting belt
By incorporating safety ropes and protective ropes into the lifting slings, and utilizing the high strength properties of Kevlar fibers, the problem of items falling due to sling breakage is solved, thus improving lifting safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-14
AI Technical Summary
If a lifting sling breaks during use, the item may fall directly, posing a safety hazard. Existing technologies have not been able to effectively solve this problem.
Safety ropes and protective ropes are installed between the sling body and the protective sleeve. The safety ropes and protective ropes are woven from Kevlar fibers and designed to be longer than the length of the sling body and the eyelet. They are used to temporarily support the object in the event of a breakage and reduce the risk of falling.
The design of safety ropes and protective ropes reduces the probability of objects falling directly when the lifting sling breaks, providing operators with time to handle the objects and improving the safety and stability of lifting operations.
Smart Images
Figure CN224118587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lifting sling technology, and more specifically, to a flexible lifting sling. Background Technology
[0002] Flexible lifting slings are lifting tools made of high-performance materials, usually woven from multiple strands of fine steel wire or synthetic fibers. These slings have good flexibility and high strength, and can evenly distribute the load during lifting, reducing pressure on the object being lifted, lowering risks, and ensuring the safety and stability of the lifting process.
[0003] When using lifting slings, it is necessary to regularly check their wear and tear. If the wear and tear of the lifting slings is not checked in time before use, or if the load of the object being lifted exceeds the maximum load capacity of the lifting slings, the object being transported will fall directly after the lifting sling breaks, causing great losses to the owner of the object. Therefore, a new solution is needed to solve the problem of objects falling directly after the lifting sling breaks during use. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a flexible lifting sling with a safety rope installed between the sling body and the protective sleeve. When the sling body is in motion, the safety rope can temporarily support the object, reducing the probability of the object falling directly after the sling body breaks.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a flexible lifting sling, comprising a sling body and two eyelets, wherein the outer sides of the sling body and the two eyelets are covered with protective sleeves, and safety ropes are provided on both sides of the sling body in the width direction, wherein the safety ropes are disposed between the sling body and the protective sleeves, and the length of the safety ropes is greater than the length of the sling body; protective ropes are provided on the outer sides of the two eyelets, wherein the protective ropes are disposed between the outer wall of the eyelets and the protective sleeves, and the length of the protective ropes is greater than the length of the outer wall of the eyelets; both the safety ropes and the protective ropes are made of Kevlar fiber.
[0006] The present invention is further configured such that: the two ends of the safety rope are respectively fixedly connected to the two ends of the belt body in the length direction, and the two ends of the protective rope in the length direction are respectively fixedly connected to the connection points between the outer walls of the eyelet and the belt body.
[0007] The present invention is further configured such that: the two safety ropes and the two protective ropes are integrally formed, the cross-sectional shape of the safety ropes and the protective ropes is flat, and the safety ropes and the protective ropes are woven from Kevlar fibers and wrapped around the outer peripheral wall of the belt body and the two eyelets.
[0008] The present invention is further configured such that the belt body and the protective sleeve are sewn together by a stitch, and the stitch is provided on both sides of the protective rope.
[0009] The present invention is further configured such that: a fixing line is sewn at the connection between the eyelet and the belt body, and the safety rope is fixed between the belt body and the protective sleeve by the fixing line.
[0010] The present invention is further configured such that: the protective sleeve has several through holes on both sides of the belt thickness direction that are offset from the stitching line, and I-shaped anti-slip parts are fixedly connected to the inner walls of the several through holes.
[0011] In summary, this utility model has the following beneficial effects: Safety ropes are installed on both sides of the belt width direction. During normal use, the safety ropes are bent and stored inside the belt, thus avoiding stress. Therefore, the safety ropes will not wear down due to stress during normal use, reducing their service life. When the belt bears an object weight exceeding its maximum load-bearing capacity during hoisting operations or breaks due to prolonged use, the safety ropes can temporarily hold the object, providing the operator with time to lower or pull the object to a safe position, reducing the probability of loss due to the object falling because of belt breakage. Protective ropes are installed on the outer sides of the two eyelets. When a break occurs at the eyelet, the protective ropes can temporarily apply tension to the belt, preventing the object on the belt from falling directly, achieving the same effect as the safety ropes. The safety ropes and protective ropes are integrally formed, providing better structural stability. Their combined action can better withstand the high tensile force instantaneously caused by damage to the belt or eyelets. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a cross-section of the present invention. Figure 1 ;
[0014] Figure 3 This is a cross-section of the present invention. Figure 2 ;
[0015] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0016] In the diagram: 1. Belt body; 2. Eyelet; 3. Protective sleeve; 4. Safety rope; 5. Protective rope; 6. Stitching thread; 7. Fixing thread; 8. Through hole; 9. Anti-slip component. Detailed Implementation
[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] A flexible lifting sling, such as Figure 1 and Figure 2 As shown, the sling includes a belt body 1 and two eyelets 2, which are integrally formed. Protective sleeves 3 cover the outer sides of both the belt body 1 and the two eyelets 2. The protective sleeves 3 protect the belt body 1, reduce friction, and increase the service life of the sling. Safety ropes 4 are installed on both sides of the belt body 1 in the width direction, positioned between the belt body 1 and the protective sleeves 3. The two ends of the safety ropes 4 are fixedly connected to the two ends of the belt body 1 in the length direction. The length of the safety ropes 4 is greater than the length of the belt body 1. During lifting operations, the belt body 1 bears the weight of the object. Because the length of the safety ropes 4 is greater than the length of the belt body 1, the safety ropes 4 do not bear the weight of the object during normal lifting operations. Under normal use, the service life of the safety ropes 4 will not be reduced due to stress. However, if the weight of the object lifted by the belt body 1 exceeds the maximum load-bearing capacity of the belt body 1, or if the belt body 1 is too long... When the sling breaks during use, the safety rope 4 can temporarily hold the object, preventing it from falling directly and giving the operator time to lower or pull the object to a safe position. This reduces the probability of loss due to the object falling because of the breakage of the sling body 1. Protective ropes 5 are installed on the outer sides of the two eyelets 2, positioned between the outer wall of the eyelet 2 and the protective sleeve 3. The two ends of the protective rope 5 are fixedly connected to the connection points between the outer wall of the eyelet 2 and the sling body 1. The length of the protective rope 5 is greater than the length of the outer wall of the eyelet 2. During lifting operations, the eyelet 2 bears the tension from the object and the hook. Because the length of the protective rope 5 is greater than the length of the outer wall of the eyelet 2, it does not bear external tension during normal lifting operations. When the eyelet 2 breaks, the protective rope 5 can temporarily apply tension to the sling body 1, preventing the object on the sling body 1 from falling directly, achieving the same effect as the safety rope 4.
[0019] like Figure 1 and Figure 2 As shown, two safety ropes 4 and two protective ropes 5 are integrally formed. The safety ropes 4 and protective ropes 5 are woven from Kevlar fibers and wrapped around the outer perimeter of the belt body 1 and the two eyelets 2. Kevlar fibers have high strength. Ropes made of Kevlar fibers can not only maintain their performance under continuous load, but are also suitable for withstanding instantaneous high tensile impact. Therefore, when the belt body 1 and the eyelets 2 break, the safety ropes 4 and protective ropes 5 can withstand the instantaneous high tensile force brought by the object, so that the object will not fall directly from the height. Moreover, the integrally formed protective ropes 5 and safety ropes 4 have better structural stability. The safety ropes 4 and protective ropes 5 work together to better withstand the instantaneous high tensile force when the belt body 1 or the eyelets 2 are damaged. The cross-sectional shape of the safety ropes 4 and protective ropes 5 is flat, which can reduce the impact of the safety ropes 4 and protective ropes 5 on the belt body 1 and the eyelets 2 during use. At the same time, the shape of the safety ropes 4 and protective ropes 5 can better support the object when the belt body 1 and the eyelets 2 break.
[0020] like Figure 1 and Figure 2 As shown, the belt body 1 and the protective sleeve 3 are sewn together by stitching thread 6. Sewing the belt body 1 and the protective sleeve 3 together can reduce the friction between the belt body 1 and the protective sleeve 3 during use, thereby reducing the wear of the belt body 1 by the protective sleeve 3. The stitching thread 6 is set on both sides of the protective rope 5. The setting of the stitching thread 6 can fix the protective rope 5 between the two stitching threads 6, so that it will not move and get tangled on the belt body 1 at will, reducing the impact of the safety rope 4 on the belt body 1 during use. The connection between the eyelet 2 and the belt body 1 is sewn with a fixing thread 7. When the fixing thread 7 passes through the center point in the width direction of the belt body 1, it passes through the safety rope 4 and fixes the safety rope 4 between the belt body 1 and the protective sleeve 3. The setting of the fixing thread can distribute the pressure on the safety rope 4 to the eyelet 2 through the connection of the fixing thread 7 when the belt body 1 breaks, reducing the distance of the object falling downwards. When the eyelet 2 breaks, the tension on the protective rope 5 can be distributed to the belt body 1, which can also reduce the distance of the object falling downwards.
[0021] like Figure 3 and Figure 4 As shown, the protective sleeve 3 has through holes 8 on both sides of the belt body 1 in the thickness direction. The through holes 8 are staggered with the suture line 6 to reduce the influence of the through holes 8 on the stability of the suture line 6. The inner wall of the through holes 8 is formed with I-shaped anti-slip parts 9 by dripping glue. The anti-slip parts 9 can reduce the probability of the lifting belt slipping between itself and the object during lifting operations.
[0022] Working principle: A flexible lifting sling. During lifting operations, the anti-slip component 9 reduces the probability of slippage between the sling and the object. When the sling body 1 breaks, the safety rope 4 will become taut as the object falls, temporarily holding the object and preventing it from falling further, giving the operator time to place the object in a safe position. When the eyelet 2 breaks, the protective rope 5 will become taut as the object falls, temporarily applying tension to the object and preventing it from falling further, giving the operator time to place the object in a safe position. This reduces the probability of loss to the owner due to the object falling because of sling damage.
[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A flexible hoisting belt comprising a belt body (1) and two grommets (2), the outer sides of the belt body (1) and the two grommets (2) being wrapped with a protective sleeve (3), characterized in that: Safety ropes (4) are provided on both sides of the belt (1) in the width direction. The safety ropes (4) are located between the belt (1) and the protective sleeve (3). The length of the safety ropes (4) is greater than the length of the belt (1). Protective ropes (5) are provided on the outside of the two eyelets (2). The protective ropes (5) are located between the outer wall of the eyelet (2) and the protective sleeve (3). The length of the protective ropes (5) is greater than the length of the outer wall of the eyelet (2). The safety ropes (4) and the protective ropes (5) are both made of Kevlar fiber.
2. A flexible hoist lifting strap according to claim 1, wherein: The two ends of the safety rope (4) are fixedly connected to the two ends of the belt body (1) along its length, and the two ends of the protection rope (5) along its length are fixedly connected to the connection points of the outer walls of the eyelet (2) and the belt body (1).
3. A flexible hoist lifting strap according to claim 2, wherein: The two safety ropes (4) and the two protective ropes (5) are integrally formed. The cross-sectional shape of the safety ropes (4) and the protective ropes (5) is flat. The safety ropes (4) and the protective ropes (5) are woven from Kevlar fibers and wrapped around the outer periphery of the belt body (1) and the two eyelets (2).
4. A flexible hoist lifting strap according to claim 3, wherein: The belt (1) and the protective sleeve (3) are sewn together by a stitch (6) which is located on both sides of the protective rope (5).
5. A flexible hoist lifting strap as claimed in claim 2, wherein: The connection between the eyelet (2) and the belt body (1) is sewn with a fixing line (7), and the safety rope (4) is fixed between the belt body (1) and the protective sleeve (3) by the fixing line (7).
6. A flexible hoist lifting strap according to claim 5, wherein: The protective sleeve (3) has several through holes (8) on both sides of the belt body (1) in the thickness direction, which are offset from the stitching line (6). The inner walls of the several through holes (8) are fixedly connected with I-shaped anti-slip parts (9).