Acid and rot resistant fiber cable

Abstract

The utility model relates to the technical field of sling, and disclose a kind of acid-resistant and rot-resistant fiber sling, including the rope body of the inner core layer, intermediate layer and outer sheath that are sequentially arranged from inside to outside, two ends are equipped with fastener and lifting hook, and the inside of fastener is equipped with reinforcing ring.The inner core layer adopts high-strength polyester fiber braided rope, and the torsional stiffness is improved by three-dimensional cross weaving technology;The intermediate layer is mixed and woven with modified polypropylene fiber and aramid fiber, and the acid and alkali resistance is enhanced by introducing sulfonic acid group into modified polypropylene fiber;The outer sheath adopts polytetrafluoroethylene coating and adds ultraviolet absorber, prolongs the outdoor life.The outer sheath embosses rhombic groove to increase friction and disperse pressure, to avoid local stress concentration.Fastener fixes the end of rope body by positioning member, and reinforcing ring prevents end abrasion and fracture.The utility model solves the problems of traditional sling, such as easy corrosion, strength decline, end loose and the like, and improves the safety and reliability of hoisting operation.

Description

Technical Field

[0001] This utility model relates to the field of sling technology, specifically to an acid- and corrosion-resistant synthetic fiber sling. Background Technology

[0002] Lifting slings are widely used in various industrial hoisting, cargo handling, and construction scenarios, playing a crucial role in connecting the hoisted object to the lifting equipment.

[0003] Traditional slings are prone to strength reduction and increased breakage risk due to acid and alkali corrosion. Furthermore, their poorly designed outer sheaths result in low friction and localized stress concentrations. At the connection between the rope and the hook, existing slings provide ineffective securing of the rope ends, leading to loosening and posing safety hazards to lifting operations. Therefore, those skilled in the art have developed an acid- and corrosion-resistant synthetic fiber sling to address the problems described in the background section. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an acid- and corrosion-resistant synthetic fiber sling to solve the problems of existing slings being prone to strength reduction and increased breakage risk due to acid and alkali corrosion, having low surface friction of the outer sheath and being prone to local stress concentration, and having poor fixing effect on the rope end, which easily leads to loosening and poses safety hazards to hoisting operations.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acid- and corrosion-resistant synthetic fiber sling, comprising a rope body, wherein the rope body is composed of an inner core layer, a middle layer and an outer sheath layer from the inside out, and a diamond-shaped groove is provided on the outer wall of the outer sheath layer. Fasteners are installed at both ends of the rope body, and hooks are connected to the fasteners. Reinforcing rings are provided on the inner sides of the two fasteners facing each other, and the reinforcing rings are sleeved with the rope body.

[0006] Preferably, the inner core layer is made of high-strength polyester fiber braided rope, which uses three-dimensional cross-weaving technology to lock the fibers of each layer together, prevent interlayer slippage, and improve the overall torsional stiffness.

[0007] Preferably, the intermediate layer is made of a blend of modified polypropylene fiber and aramid fiber. The modified polypropylene fiber is introduced with sulfonic acid groups through graft copolymerization technology to enhance its acid and alkali resistance, while the aramid fiber is used to improve its cut resistance and high temperature resistance.

[0008] Preferably, the outer protective layer is made of polytetrafluoroethylene (PTFE) coating, which is resistant to strong acids, strong alkalis and organic solvents. Ultraviolet absorbers are added to the PTFE coating to extend its outdoor service life.

[0009] Preferably, the fastener is equipped with a positioning element, and the fastener is fixedly connected to the end of the rope through the positioning element, which can initially fix the end of the rope. The reinforcing ring is made of stainless steel wire winding, which can further prevent breakage caused by end wear.

[0010] Compared with the prior art, this utility model provides an acid- and corrosion-resistant synthetic fiber sling with the following advantages: Through design, the sling consists of a rope body and a hook. The rope body is composed of an inner core layer, a middle layer, and an outer sheath layer from the inside out. The design of the inner core layer, middle layer, and outer sheath layer reduces the problem of decreased strength and increased risk of breakage due to acid and alkali corrosion. The embossed diamond grooves can increase friction and disperse pressure, avoiding local stress concentration. At the connection between the rope body and the hook, the two ends of the rope body are clamped with fasteners with hooks in a ring shape and connected and fixed to the ends of the rope body by positioning parts, which can initially fix the ends of the rope body and prevent the ends from loosening. The reinforcing ring set on one side of the fastener can further prevent the ends from breaking due to wear. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of an acid- and corrosion-resistant synthetic fiber sling provided in an embodiment of this application.

[0012] Figure 2 This is a schematic diagram of the rope structure in an acid- and corrosion-resistant synthetic fiber sling provided in an embodiment of this application.

[0013] Figure 3 This is a schematic diagram of the reinforcing ring structure in an acid- and corrosion-resistant synthetic fiber sling provided in an embodiment of this application.

[0014] In the diagram: 1. Rope; 101. Inner core layer; 102. Intermediate layer; 103. Outer protective layer; 1031. Diamond groove; 2. Fastener; 201. Positioning component; 3. Hook; 4. Reinforcing ring. Detailed Implementation

[0015] 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.

[0016] This utility model provides a technical solution: an acid- and corrosion-resistant synthetic fiber sling. (Please refer to...) Figure 1 , Figure 2 and Figure 3The rope body 1 is composed of an inner core layer 101, a middle layer 102 and an outer protective layer 103 from the inside to the outside. A diamond-shaped groove 1031 is provided on the outer wall of the outer protective layer 103. Fasteners 2 are installed at both ends of the rope body 1. Hooks 3 are connected to the fasteners 2. Reinforcing rings 4 are provided on the inner sides of the two fasteners 2, and the reinforcing rings 4 are sleeved with the rope body 1. The inner core layer 101 is made of high-strength polyester fiber braided rope. Through three-dimensional cross-weaving technology, the fibers of each layer are interlocked to prevent interlayer slippage and improve the overall torsional stiffness. The middle layer 102 is made of modified polypropylene fiber and aramid fiber mixed weaving. The modified polypropylene fiber is introduced with sulfonic acid groups through graft copolymerization technology to enhance acid and alkali resistance, while the aramid fiber is used to improve cut resistance and high temperature resistance. The outer sheath 103 is made of polytetrafluoroethylene coating. The polytetrafluoroethylene coating has the effect of resisting strong acid, strong alkali and organic solvent corrosion. UV absorbers are added to the polytetrafluoroethylene coating to extend outdoor service life. The fastener 2 is equipped with a positioning part 201. The fastener 2 is fixedly connected to the end of the rope body 1 through the positioning part 201 to initially fix the end of the rope body 1. The reinforcing ring 4 is made of stainless steel wire winding to further prevent breakage caused by end wear.

[0017] The working principle of this device is as follows: The sling consists of a rope body 1 and a hook 3. The rope body 1 is composed of an inner core layer 101, a middle layer 102, and an outer sheath 103 from the inside out. The inner core layer 101 is made of high-strength polyester fiber braided rope, which provides basic load-bearing capacity. Through three-dimensional cross-weaving technology, the fibers of each layer are interlocked to prevent interlayer slippage and improve the overall torsional stiffness. The middle layer 102 is made of modified polypropylene fiber and aramid fiber blend. The modified polypropylene fiber is introduced with sulfonic acid groups through graft copolymerization technology to enhance acid and alkali resistance, while the aramid fiber is used to improve cut resistance and high temperature resistance. The outer sheath 103 is made of polytetrafluoroethylene coating, which has the effect of resisting strong acid, strong alkali and organic solvent corrosion. It also contains added ultraviolet absorbers to extend outdoor service life. The outer sheath 103 is also embossed with diamond grooves 1031, which can increase friction and disperse pressure to avoid local stress concentration. Fasteners 2 with hooks 3 are held in ring clamps at both ends of the rope body 1. The fasteners 2 are connected and fixed to the ends of the rope body 1 through positioning parts 201. The fasteners 2 can initially fix the ends of the rope body 1 to avoid the problem of loosening at the ends of the rope body 1. Furthermore, a reinforcing ring 4 is provided on one side of the fastener 2 to further prevent breakage caused by end wear.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] In this document, unless otherwise expressly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] 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. An acid- and corrosion-resistant synthetic fiber sling, comprising a rope body (1), characterized in that: The rope (1) is composed of an inner core layer (101), a middle layer (102) and an outer protective layer (103) from the inside to the outside. A diamond groove (1031) is provided on the outer wall of the outer protective layer (103). Fasteners (2) are installed at both ends of the rope (1). Hooks (3) are connected to the fasteners (2). Reinforcing rings (4) are provided on the inner sides of the two fasteners (2) respectively. The reinforcing rings (4) are sleeved with the rope (1).

2. The acid-resistant and corrosion-resistant synthetic fiber sling according to claim 1, characterized in that: The inner core layer (101) is made of high-strength polyester fiber braided rope.

3. The acid-resistant and corrosion-resistant synthetic fiber sling according to claim 1, characterized in that: The intermediate layer (102) is made of a blend of modified polypropylene fiber and aramid fiber.

4. The acid- and corrosion-resistant synthetic fiber sling according to claim 1, characterized in that: The outer protective layer (103) is made of polytetrafluoroethylene coating, and ultraviolet absorbers are added to the polytetrafluoroethylene coating.

5. The acid- and corrosion-resistant synthetic fiber sling according to claim 1, characterized in that: The fastener (2) is equipped with a positioning element (201), and the fastener (2) is fixedly connected to the end of the rope (1) through the positioning element (201).

6. The acid- and corrosion-resistant synthetic fiber sling according to claim 1, characterized in that: The reinforcing ring (4) is made of stainless steel wire.

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