Anti-fatigue steel wire grating structure
By introducing distributed flexible pressure-bearing nodes and wear-resistant coatings into the wire mesh structure, combined with elastic spiral connections, the problem of insufficient fatigue resistance of the wire mesh was solved, and the long-term stability and durability of the structure were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIAN ZHONG KE BUILDING MATERIALS CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing wire mesh structures have insufficient fatigue resistance during long-term use and are prone to fatigue damage due to repeated stress, leading to a decline in mechanical properties and structural failure.
The structure adopts a distributed flexible pressure-bearing node structure, including Ω-shaped arched protrusions at the intersections of longitudinal and transverse steel wires, which are spot-welded together. A composite coating of ceramic particles and epoxy resin is sprayed onto the surface of the steel wires, and combined with the elastic spiral connection and arc transition part, a rectangular grid unit is formed.
It significantly improves the fatigue resistance of steel wire mesh, extends its service life, enhances the reliability and durability of the structure, reduces the accumulation of fatigue damage, and improves the connection strength and corrosion resistance under complex load environments.
Smart Images
Figure CN224261434U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel wire grating technology, specifically to a fatigue-resistant steel wire grating structure. Background Technology
[0002] Steel wire mesh is a grid-like structural material made of high-strength steel wire through welding and other processes. Due to its significant advantages such as high strength, light weight, good integrity, and ease of transportation and installation, it is widely used in many fields including civil engineering, building construction, mining engineering, transportation engineering, and environmental engineering. Common applications include: reinforcing materials in concrete structures, reinforcement and protection of soil slopes, support for mining roadways, roadbed and pavement reinforcement, filter screens, safety fences, platform walkway paving, and animal enclosures.
[0003] Existing wire mesh structures generally suffer from insufficient fatigue resistance during long-term use. Engineering environments often involve continuous alternating loads, such as vibration loads from vehicle traffic and periodic forces from water flow impacts. The nodes and stress-concentrated areas of the wire mesh are prone to fatigue damage due to repeated stress. With prolonged use, this fatigue damage accumulates, leading to a gradual decline in the mechanical properties of the wire mesh, and even localized fractures or overall structural failure. This severely impacts the safety and service life of the project, making it difficult to meet the requirements of engineering applications under long-term complex load environments. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a fatigue-resistant steel wire mesh structure, which has the advantages of reliable connection at the nodes of the steel wires and improved fatigue resistance of the steel wire mesh, thus solving the above-mentioned technical problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fatigue-resistant steel wire grid structure, comprising longitudinal steel wires and transverse steel wires, wherein the longitudinal steel wires and transverse steel wires are crisscrossed and connected to form multiple grid units, and a distributed flexible pressure-bearing node structure is provided at the intersection of the longitudinal steel wires and the transverse steel wires.
[0006] The distributed flexible pressure-bearing node structure includes: a longitudinal raised arch formed by local rolling in the intersection area of the longitudinal steel wires; and a transverse raised arch formed by local rolling in the intersection area of the transverse steel wires; both the longitudinal raised arch and the transverse raised arch are Ω-shaped arch structures, and their arch tops are arranged facing each other.
[0007] Preferably, the longitudinal raised arch and the transverse raised arch are connected by spot welding, and the arch height H of the longitudinal raised arch and the transverse raised arch and the diameter D of the longitudinal steel wire and the transverse steel wire need to satisfy: 1.5≤H / D≤3.0.
[0008] Preferably, both the longitudinal steel wire and the transverse steel wire include an elastic spiral connection portion, wherein the pitch of the elastic spiral connection portion is 1.5-3 times the diameter of the longitudinal steel wire and the transverse steel wire, and the number of spiral turns is 5-8 turns.
[0009] Preferably, both ends of the longitudinal and transverse raised arches are rolled to form arc-shaped transition portions, and both ends of the elastic spiral connecting portion are integrally connected to the arc-shaped transition portions.
[0010] Preferably, the outer surfaces of both the longitudinal and transverse steel wires are coated with a wear-resistant coating, which is a composite coating of ceramic particles and epoxy resin, wherein the volume percentage of ceramic particles is 30%-50%, and the thickness of the wear-resistant coating is 0.2-0.5 mm.
[0011] Preferably, the grid unit is a rectangular structure, and both the long and wide sides of the grid unit include elastic spiral connecting parts connected to the longitudinal and transverse steel wires.
[0012] Compared with the prior art, this utility model provides a fatigue-resistant steel wire mesh structure, which has the following beneficial effects:
[0013] 1. This utility model significantly improves fatigue resistance through unique node and buffer design. The longitudinal and transverse raised arches adopt an Ω-shaped arch structure and are spot-welded together. This can not only use the arch deformation to buffer the impact of alternating loads, but also avoid stress concentration caused by excessive welding. The elastic spiral connection part further buffers stress with a specific pitch and number of turns, while the arc transition part makes the force transmission smoother, reduces the accumulation of fatigue damage, and greatly extends the service life of the grid under long-term complex loads.
[0014] 2. This utility model enhances structural reliability and durability while ensuring functionality. The rectangular grid units ensure uniform stress distribution and reduce local overload; the integrated design of the elastic spiral connection and the raised arch enhances overall continuity and load-bearing capacity; the composite wear-resistant coating on the outer surface, through the combination of ceramic particles and epoxy resin, not only enhances wear resistance and resists mechanical damage, but also isolates corrosive media, achieving a balance between connection firmness, structural stability and corrosion resistance, making the grid more adaptable to complex environments. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0016] Figure 2 The structure of this utility model Figure 1 A magnified view of part A in the diagram;
[0017] Figure 3 This is a partial three-dimensional schematic diagram of the steel wire of this utility model.
[0018] Among them: 1. Longitudinal steel wire; 11. Longitudinal raised arch; 2. Transverse steel wire; 21. Transverse raised arch; 3. Grid unit; 4. Elastic spiral connection; 5. Arc transition. Detailed Implementation
[0019] 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.
[0020] Please see Figures 1-3 A fatigue-resistant steel wire grid structure includes longitudinal steel wires 1 and transverse steel wires 2, which are connected in a crisscross pattern to form multiple grid units 3. Distributed flexible pressure-bearing node structures are provided at the intersection of the longitudinal steel wires 1 and the transverse steel wires 2.
[0021] The distributed flexible pressure-bearing node structure includes: a longitudinal raised arch 11 formed by local rolling in the intersection area of longitudinal steel wire 1; and a transverse raised arch 21 formed by local rolling in the intersection area of transverse steel wire 2; both the longitudinal raised arch 11 and the transverse raised arch 21 are Ω-shaped arch structures, and their arch tops are set facing each other.
[0022] Specifically, the longitudinal raised arch 11 and the transverse raised arch 21 are connected by spot welding. The arch height H of the longitudinal raised arch 11 and the transverse raised arch 21 and the diameter D of the longitudinal steel wire 1 and the transverse steel wire 2 need to satisfy: 1.5≤H / D≤3.0.
[0023] The advantages are that the longitudinal raised arch 11 and the transverse raised arch 21 are connected by spot welding, which can reduce damage to the steel wire body structure while ensuring the strength of the node connection and avoid local stress concentration caused by excessive welding. The ratio of the arch height H to the steel wire diameter D satisfies 1.5≤H / D≤3.0, which provides a certain flexible buffer space for the intersection node through the deformation characteristics of the Ω-shaped arch structure, which can disperse the impact force under alternating loads and reduce the accumulation of fatigue damage. It can also avoid the problem of structural instability caused by excessive arch height or ineffective buffering due to insufficient arch height. Thus, a good balance is formed between connection reliability and fatigue resistance, and the service life of the steel wire grid is improved under long-term complex load environment.
[0024] Specifically, both the longitudinal steel wire 1 and the transverse steel wire 2 include an elastic spiral connecting part 4. The pitch of the elastic spiral connecting part 4 is 1.5-3 times the diameter of the longitudinal steel wire 1 and the transverse steel wire 2, and the number of spiral turns is 5-8 turns.
[0025] Specifically, both ends of the longitudinal raised arch 11 and the transverse raised arch 21 are rolled to form arc-shaped transition portions 5, and both ends of the elastic spiral connecting portion 4 are integrally connected to the arc-shaped transition portions 5.
[0026] The advantages are that the pitch of the elastic spiral connection part 4 is 1.5-3 times the diameter of the steel wire and the number of spiral turns is 5-8. It can utilize the elastic deformation characteristics of the spiral structure to buffer stress through its own expansion and contraction when subjected to alternating loads, thereby reducing the impact force of the load directly transmitted to the node. The arc-shaped transition part 5 connects the elastic spiral connection part 4 with the longitudinal and transverse raised arches, which can avoid stress concentration caused by structural abrupt changes, making the force transmission smoother and further reducing the risk of fatigue damage. At the same time, the integrated connection design of the two enhances the coherence and load-bearing capacity of the overall structure, making the steel wire grid more durable in long-term complex load environments.
[0027] Specifically, the outer surfaces of both longitudinal steel wire 1 and transverse steel wire 2 are coated with a wear-resistant coating. The wear-resistant coating is a composite coating of ceramic particles and epoxy resin, wherein the volume ratio of ceramic particles is 30%-50% and the thickness of the wear-resistant coating is 0.2-0.5mm.
[0028] The advantages are that the outer surfaces of the longitudinal steel wire 1 and the transverse steel wire 2 are coated with a wear-resistant coating, which is a composite coating of ceramic particles and epoxy resin. The high hardness of the ceramic particles can significantly improve the wear resistance of the steel wire surface, effectively resisting mechanical damage such as friction and scratches that may exist in the engineering environment. The epoxy resin, as a binder, can ensure that the ceramic particles are firmly attached to the surface of the steel wire, forming a stable protective layer. At the same time, the coating can isolate the steel wire from direct contact with external corrosive media, reduce the risk of rust, and extend the service life of the steel wire.
[0029] Specifically, the grid unit 3 has a rectangular structure, and both the long and wide sides of the grid unit 3 include an elastic spiral connection part 4 connected to the longitudinal steel wire 1 and the transverse steel wire 2.
[0030] The advantages are that the rectangular structure allows the grid unit 3 to distribute the load more evenly when under stress, avoiding excessive local stress; while the elastic spiral connection part 4, through its own spiral deformation characteristics, can play a buffering role when subjected to alternating loads (such as vibration, impact, etc.), gradually transferring stress to the entire grid structure and reducing stress concentration at the edges and nodes of the grid unit 3.
[0031] In use, longitudinal steel wire 1 and transverse steel wire 2 intersect to form grid unit 3, and the intersection point is set as a distributed flexible pressure-bearing node. The longitudinal raised arch 11 and transverse raised arch 21 are Ω-shaped arch structures with the arch tops facing each other and connected by spot welding to reduce damage to the steel wire body and avoid local stress concentration. The arch height H and the steel wire diameter D satisfy 1.5≤H / D≤3.0. The deformation of the Ω-shaped arch structure provides flexible buffering, disperses the impact force of alternating loads, and balances the connection reliability and fatigue resistance. The longitudinal steel wire 1 and transverse steel wire 2 contain elastic spiral connection parts 4 with a pitch of 1.5-3 times the diameter and 5-8 spiral turns. The spiral deformation buffers the stress and reduces the impact force transmitted to the node. The arc-shaped transition parts 5 at both ends of the longitudinal raised arch 11 and transverse raised arch 21 connect to the elastic spiral connection parts 4 to avoid stress concentration. The integrated connection enhances the overall continuity and load-bearing capacity.
[0032] 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 fatigue-resistant steel wire lattice structure comprising longitudinal steel wires (1) and transverse steel wires (2) which are connected to each other in a longitudinal and transverse manner and form a plurality of lattice cells (3), characterized in that: A distributed flexible pressure-bearing node structure is provided at the intersection of the longitudinal steel wire (1) and the transverse steel wire (2); The distributed flexible pressure-bearing node structure includes: a longitudinal raised arch (11) formed by local rolling at the intersection area of the longitudinal steel wire (1); and a transverse raised arch (21) formed by local rolling at the intersection area of the transverse steel wire (2); both the longitudinal raised arch (11) and the transverse raised arch (21) are Ω-shaped arch structures, and their arch tops are set facing each other.
2. The anti-fatigue steel wire lattice structure according to claim 1, characterized in that: The longitudinal raised arch (11) and the transverse raised arch (21) are connected by spot welding. The arch height H of the longitudinal raised arch (11) and the transverse raised arch (21) and the diameter D of the longitudinal steel wire (1) and the transverse steel wire (2) need to satisfy: 1.5≤H / D≤3.
0.
3. The anti-fatigue steel wire lattice structure according to claim 1, characterized in that: Both the longitudinal steel wire (1) and the transverse steel wire (2) include an elastic spiral connection part (4). The pitch of the elastic spiral connection part (4) is 1.5-3 times the diameter of the longitudinal steel wire (1) and the transverse steel wire (2), and the number of spiral turns is 5-8 turns.
4. The anti-fatigue steel wire lattice structure according to claim 3, characterized in that: Both ends of the longitudinal raised arch (11) and the transverse raised arch (21) are rolled to form arc-shaped transition portions (5), and both ends of the elastic spiral connecting portion (4) are integrally connected to the arc-shaped transition portions (5).
5. The anti-fatigue steel wire lattice structure according to claim 1, characterized in that: The outer surfaces of the longitudinal steel wire (1) and the transverse steel wire (2) are coated with a wear-resistant coating. The wear-resistant coating is a composite coating of ceramic particles and epoxy resin, wherein the volume ratio of ceramic particles is 30%-50%, and the thickness of the wear-resistant coating is 0.2-0.5mm.
6. The fatigue-resistant steel wire lattice structure of claim 1, wherein: The grid unit (3) is a rectangular structure, and both the long side and the wide side of the grid unit (3) include an elastic spiral connection part (4) connected to the longitudinal steel wire (1) and the transverse steel wire (2).