Simple wear-resistant lifting belt

Abstract

The utility model discloses a simple and wear-resistant object lifting belt, which solves the problem that the existing object lifting belt is easy to break due to wear. The lifting belt comprises a flat nylon woven belt, an internal steel wire core and an outer nitrile rubber coating, wherein the steel wire core is parallel to the length direction of the nylon woven belt. At least two steel wire cores are arranged in the nylon woven belt and connected with an anti-stretching structure, the nylon woven belt is provided with two layers, and the steel wire cores between the nylon woven belt are fixed by spiral limiting silk threads. The reinforcing ribs of the anti-stretching structure are connected with the separated ends of the transverse rods or are wound around the steel wire core and connected with the ends of the transverse rods in a staggered mode. And the reinforcing rib knotting head can be fixed by the limiting bulge at the end part of the cross rod. The thickness of the nitrile rubber coating is 0.5-2 mm, the shore hardness is 60-80 HA, the reinforcing ribs are made of aramid fibers, the tensile strength is not lower than 2.8 GPa, and the elastic modulus is not lower than 70 GPa. The lifting belt is wear-resistant, high in bearing capacity and stable in structure, and the construction cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting sling technology, and in particular to a simple and wear-resistant lifting sling. Background Technology

[0002] In municipal engineering construction, slings are often used to bind and secure pipes, prefabricated components, and other objects before they are moved by mechanical equipment. However, slings are prone to wear and tear and breakage during use, which greatly reduces their load-bearing capacity, safety performance, and service life. In addition, the high wear and tear increases construction costs. Summary of the Invention

[0003] The technical problem to be solved by this utility model is that the lifting straps currently used are prone to breakage due to wear.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a simple and wear-resistant lifting sling, comprising a flat nylon braided sling, a steel wire core arranged inside the nylon braided sling, and a nitrile rubber coating covering the outer layer of the nylon braided sling, wherein the steel wire core is arranged parallel to the length direction of the nylon braided sling.

[0005] Preferably, the nylon braided tape contains at least two steel wire cores, and the steel wire cores are connected to an anti-stretching structure.

[0006] Preferably, the nylon braided tape has two layers, the steel wire core is located between the two layers of nylon braided tape, and a limiting wire is inserted between the two layers of nylon braided tape. The limiting wire is wound around the steel wire core and forms a spiral.

[0007] Preferably, a crossbar is fixedly connected to the steel wire core, the crossbar is set perpendicular to the steel wire core, the crossbars are equidistantly distributed along the axial direction of the steel wire core, and the anti-tension structure is arranged obliquely between adjacent crossbars.

[0008] Preferably, the anti-tension structure includes reinforcing ribs, which are connected between the opposite ends of adjacent crossbars, and the ends of the reinforcing ribs are provided with annular structures that clamp the ends of the crossbars.

[0009] Preferably, the anti-stretch structure includes reinforcing ribs, which are wound around the steel wire core and are staggered to connect the ends of adjacent crossbars. The reinforcing ribs are fitted with knotted heads on the ends of the crossbars.

[0010] Preferably, the end of the crossbar is provided with a limiting protrusion, and a gap is provided between the limiting protrusion and the steel wire core, and the knot head of the reinforcing rib is located between the limiting protrusion and the steel wire core.

[0011] Preferably, the thickness of the nitrile rubber coating is 0.5-2 mm, and the Shore hardness of the nitrile rubber coating is 60-80 HA.

[0012] Preferably, the reinforcing ribs are made of aramid fiber, and the tensile strength of the aramid fiber is not less than 2.8 GPa and the elastic modulus is not less than 70 GPa.

[0013] This utility model provides a simple and wear-resistant lifting strap, which has the following beneficial effects.

[0014] 1. By coating the outer layer of the nylon braided strap with a nitrile rubber coating, the thickness of which is 0.5-2 mm and the Shore hardness is 60-80 HA, the wear resistance of the sling is effectively enhanced. When handling pipes, prefabricated components, and other objects in municipal engineering projects, it reduces wear and tear caused by friction, lowers the risk of the sling breaking, and extends its service life.

[0015] 2. The nylon braided strap contains at least two steel wire cores, which are parallel to the length of the nylon braided strap, providing good strength support for the lifting sling. At the same time, the anti-tensile structure connected to the steel wire cores, such as reinforcing ribs, further improves the tensile strength of the lifting sling, enabling it to withstand greater loads and enhancing its load-bearing capacity and safety performance.

[0016] 3. The nylon braided strap is set as two layers, with the steel wire core located between the two layers. The steel wire core is inserted through the spirally wound limiting wire, which can effectively fix the position of the steel wire core and prevent it from shifting or moving during use, thus ensuring the stability and reliability of the lifting strap structure.

[0017] 4. The vertically arranged crossbars on the steel wire core are evenly distributed along the axial direction, and the anti-tension structure is inclined between adjacent crossbars. Whether the reinforcing ribs connect the opposite ends of adjacent crossbars and are clamped to the ends of the crossbars by a ring structure, or the reinforcing ribs are wrapped around the steel wire core and staggered to connect the ends of the crossbars and are fitted with knotted heads, they can effectively disperse and transmit tensile force, improve the anti-tension effect of the sling, and enhance its overall strength.

[0018] 5. The limiting protrusion at the end of the crossbar ensures that the knot of the reinforcing rib is located between the limiting protrusion and the steel wire core, preventing the knot from shifting or loosening under stress, further ensuring the stability of the anti-tension structure and guaranteeing the normal use of the lifting sling. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a structural front view of an embodiment of the present utility model.

[0021] Figure 2 This is a top view of the structure of an embodiment of the present utility model.

[0022] Figure 3 for Figure 2 A magnified view of region A in the middle.

[0023] In the diagram: 1. Nylon braided tape; 2. Acrylic rubber coating; 3. Steel wire core; 4. Crossbar; 5. Limiting protrusion; 6. Reinforcing rib. Detailed Implementation

[0024] like Figure 1-3 As shown, this utility model provides a simple and wear-resistant lifting sling, including a flat nylon braided sling 1, a steel wire core 3 arranged inside the nylon braided sling 1, and a nitrile rubber coating 2 covering the outer layer of the nylon braided sling 1. The steel wire core 3 is arranged parallel to the length direction of the nylon braided sling 1.

[0025] First, select the appropriate specifications and model of lifting sling based on the weight, size, and shape of the object to be lifted. Before use, inspect the sling for damage; replace it immediately if signs of wear, cuts, stretching, or chemical corrosion are found. Clear the lifting area to ensure there are no obstructions and arrange suitable lifting equipment and personnel. Then, lay the sling flat under the object to be lifted, ensuring it is evenly distributed to avoid localized overload. Before lifting, reconfirm that the sling connections are secure and reliable. Then, slowly and steadily lift the object. During the lifting process, carefully observe the condition of the sling to ensure there are no abnormalities. After the operation, remove and store the sling, and periodically inspect it to ensure it remains in a safe and stable condition.

[0026] The nylon braided strap 1 is formed by weaving or winding multiple layers of nylon filaments to enhance overall strength and durability; the steel wire core 3 is evenly distributed inside the nylon braided strap 1 to improve the overall load-bearing capacity and tensile strength of the sling; the nitrile rubber coating 2 covers the entire nylon braided strap 1 to protect the edges of the nylon braided strap 1 from wear or cut, and to improve the overall wear resistance of the nylon braided strap 1.

[0027] like Figure 1 As shown. The nylon braided strap 1 contains at least two steel wire cores 3, and each steel wire core 3 is connected to an anti-tension structure. Three steel wire cores 3 are provided and evenly distributed within the nylon braided strap 1 to ensure the sling has sufficient structural strength.

[0028] like Figure 2 and Figure 3As shown, to achieve a tight bond between the nylon braided strap 1 and the steel wire core 3, the nylon braided strap 1 has two layers. The steel wire core 3 is located between the two layers of nylon braided strap 1, and a limiting thread is inserted between the two layers of nylon braided strap 1. The limiting thread is wound around the steel wire core 3 in a spiral shape. By clamping the steel wire core 3 between the two nylon braided straps 1, and after the steel wire core 3 is clamped, a limiting stitch is used to achieve the limiting effect according to the position of the steel wire core 3. The limiting thread binds the steel wire core 3, and at the same time, the two nylon braided straps 1 are sewn together to ensure that the steel wire core 3 is tightly clamped between the two nylon braided straps 1, forming a structurally stable lifting strap.

[0029] like Figure 1-3 As shown. A crossbar 4 is fixedly connected to the steel wire core 3. The crossbars 4 are perpendicular to the steel wire core 3 and are equidistantly distributed along the axial direction of the steel wire core 3. The anti-tension structure is arranged obliquely between adjacent crossbars 4. The crossbars 4 are installed on the steel wire core 3 to facilitate the installation of the anti-tension structure. This anti-tension structure prevents relative movement between adjacent crossbars 4, thereby preventing the entire lifting sling from being stretched.

[0030] like Figure 1 As shown. The anti-tension structure includes a reinforcing rib 6, which is connected between the disjointed ends of adjacent crossbars 4, and the end of the reinforcing rib 6 is provided with a ring structure that clamps the end of the crossbar 4.

[0031] The reinforcing rib 6 adopts a segmented structure, with multiple segments connected one by one. Both ends of the reinforcing rib 6 are fixed with a ring structure, which is used to fit onto the end of the crossbar 4, thereby fitting the reinforcing rib 6 between two adjacent crossbars 4. This arrangement forms a truss structure between the crossbar 4 and the reinforcing rib 6, improving tensile strength.

[0032] like Figure 1 As shown. The anti-stretch structure includes reinforcing ribs 6, which are wound around the steel wire core 3 and are staggered to connect the ends of adjacent crossbars 4. The reinforcing ribs 6 are fitted with knotted heads on the ends of the crossbars 4.

[0033] The reinforcing rib 6 adopts a one-piece structure. During installation, one end of the reinforcing rib 6 is knotted and fitted onto one end of the end of the crossbar 4. Then, the reinforcing rib 6 is pulled diagonally to the other end of the next crossbar 4. The reinforcing rib 6 is then knotted around the top of the crossbar 4, and so on, until the last crossbar 4 is welded and fixed, thus completing the installation of the reinforcing rib 6. The one-piece reinforcing rib 6 has a higher installation efficiency than the segmented reinforcing rib 6.

[0034] like Figure 1-3 As shown. A limiting protrusion 5 is provided at the end of the crossbar 4, and a gap is provided between the limiting protrusion 5 and the steel wire core 3. The knotted head of the reinforcing rib 6 is located between the limiting protrusion 5 and the steel wire core 3. By providing the limiting protrusion 5, the limiting protrusion 5 limits the position of the reinforcing rib 6, ensuring the stability of the reinforcing rib 6 installation.

[0035] As a preferred embodiment of this utility model, the thickness of the nitrile rubber coating 2 is 0.5-2 mm, and the Shore hardness of the nitrile rubber coating 2 is 60-80 HA. This allows the nitrile rubber coating 2 to provide both good wear resistance and a certain degree of flexibility to adapt to the bending deformation of the lifting sling during use.

[0036] As a preferred embodiment of this utility model, the reinforcing rib 6 is made of aramid fiber, with a tensile strength of not less than 2.8 GPa and an elastic modulus of not less than 70 GPa. This reinforcing rib 6 effectively enhances the tensile strength of the lifting sling, while also being lightweight and heat-resistant. The inner diameter of the annular structure is interference-fitted with the outer diameter of the end of the crossbar 4 to ensure the stability of the connection between the reinforcing rib 6 and the crossbar 4.

Claims

1. A simple wear-resistant sling, characterized in that: The utility model provides a kind of steel wire core and nitrile rubber coating, including flat nylon braid (1), steel wire core (3) arranged in the inside of nylon braid (1) and the coating (2) of nitrile rubber covered in the outer layer of nylon braid (1), steel wire core (3) is arranged in parallel to the length direction of nylon braid (1).

2. The simple wear-resistant lifting belt according to claim 1, characterized in that: More than two steel wire cores (3) are arranged in the nylon braid (1), and the steel wire core (3) is connected with an anti-stretching structure.

3. The simple wear-resistant lifting belt according to claim 2, characterized in that: The nylon braid (1) is provided with two layers, the steel wire core (3) is located between the two layers of nylon braid (1), and a limiting silk thread is inserted between the two layers of nylon braid (1), the limiting silk thread is wound on the steel wire core (3) and is in a spiral shape.

4. The simple wear-resistant lifting belt according to claim 3, characterized in that: The steel wire core (3) is fixedly connected with a crossbar (4), the crossbar (4) is perpendicular to the steel wire core (3), the crossbar (4) is equidistantly distributed along the axial direction of the steel wire core (3), and the anti-stretching structure is arranged between adjacent crossbars (4).

5. The simple wear-resistant lifting belt according to claim 4, characterized in that: The anti-stretching structure includes a reinforcing rib (6), the reinforcing rib (6) is connected between the opposite ends of adjacent crossbars (4), and the end of the reinforcing rib (6) is provided with a ring structure clamped on the end of the crossbar (4).

6. The simple wear-resistant lifting belt according to claim 4, characterized in that: The anti-stretching structure includes a reinforcing rib (6), the reinforcing rib (6) is wound on the steel wire core (3), and the reinforcing rib (6) is connected with the end of adjacent crossbars (4) in an interlaced manner, and the reinforcing rib (6) is provided with a knot head on the end of the crossbar (4).

7. The simple wear-resistant lifting strap of claim 6, wherein: The end of the crossbar (4) is provided with a limiting protrusion (5), and a gap is formed between the limiting protrusion (5) and the steel wire core (3), and the knot head of the reinforcing rib (6) is located between the limiting protrusion (5) and the steel wire core (3).

8. The simple wear-resistant lifting belt according to claim 1, wherein: The thickness of the nitrile rubber coating (2) is 0.5-2 mm, and the Shore hardness of the nitrile rubber coating (2) is 60-80HA.

9. The simple wear-resistant lifting band as claimed in claim 5 or 6, characterized in that: The reinforcing rib (6) is made of aramid fiber material, the tensile strength of the aramid fiber is not less than 2.8GPa, and the elastic modulus is not less than 70GPa.

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