Corrosion-resistant pet high polymer gabion net box for water conservancy slope protection

CN122918969APending Publication Date: 2026-10-16甘肃省安装建设集团有限公司 +1
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Patent Information

Application Number
CN202611059906.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-07-16
Publication Date
2026-10-16

AI Technical Summary

Technical Problem

[0003]然而,传统石笼网箱在实际使用中暴露出诸多耐久性不足和结构缺陷,严重影响了水利设施的安全运行和使用寿命

Benefits of technology

[0016]1. This invention uses PET polymer materials for both the mesh frame and the frame rods, and coats their outer surfaces with epoxy resin or polyurethane corrosion-resistant layers. PET material itself has excellent acid and alkali resistance and hydrolysis resistance. Combined with the anti-corrosion coating, it can resist the erosion of acid, alkali and salt media in river and lake water for a long time, preventing the problems of rusting and breakage of traditional metal gabion cages. It is suitable for heavily polluted river channels or coastal slope protection projects, and its service life is far longer than that of ordinary galvanized or plastic-coated steel wire mesh cages, reducing maintenance and replacement costs and ensuring the long-term stability of water conservancy facilities.

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Abstract

The application discloses a kind of corrosion-resistant PET high-molecular gabion net box for water conservancy slope protection, it is related to water conservancy slope protection related technical field.The present application includes net rack and the frame bar for supporting net rack, and frame bar is provided with multiple and along the edge of net rack arrangement of XYZ axis;Net rack is formed by the box-shaped structure with internal accommodating space by cutting, splicing the mesh made of PET high-molecular material, and the mesh of net rack is regular polygon, the surface of net rack and frame bar is provided with corrosion-resistant layer, the upper opening of net rack is provided with the mesh cover that can be opened and closed, the side of mesh cover is hooked in corresponding frame bar by double-end hook.The present application is made of PET high-molecular material by using net rack and frame bar, reduces maintenance replacement cost, guarantees the long-term stability of water conservancy facilities, while the use of net rack and frame bar, substantially shorten the construction period of slope protection, and the setting of layer net, prevent the inside of slope protection from being hollowed out, significantly improve the long-term stability and scouring resistance of slope protection.
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Description

Technical Field

[0001] This invention belongs to the technical field of water conservancy slope protection, and in particular relates to a corrosion-resistant PET polymer gabion mesh box for water conservancy slope protection. Background Technology

[0002] Gabion cages are flexible structures widely used in water conservancy projects such as riverbank protection, slope protection, soil and water conservation, and ecological restoration. They are primarily made of wire mesh and filled with boulders or pebbles, utilizing the weight of the stones and the overall integrity of the cage to resist water erosion and prevent slope collapse. Compared to traditional concrete slope protection, gabion cages offer advantages such as convenient construction, low cost, eco-friendliness (plants can grow between the stones), and strong adaptability to foundation deformation. Therefore, they have been widely used in the management of small and medium-sized rivers and ecological bank protection projects.

[0003] However, traditional gabion cages have revealed many durability deficiencies and structural defects in actual use, which seriously affect the safe operation and service life of water conservancy facilities.

[0004] First, traditional gabion cages are typically woven or welded from galvanized low-carbon steel wire. While the galvanized layer provides some rust protection, in long-term submerged environments such as rivers and lakes, especially in acidic or alkaline water, the galvanized layer is easily corroded and damaged. As the steel wire rusts, its cross-section decreases, its strength drops significantly, and eventually leads to broken wires, enlarged mesh, and stone loss. Second, the joints of traditional metal gabion cages are weak points in the structure. Under the combined effects of water flow impact, stone compression, and uneven foundation settlement, welded joints are prone to cracking due to stress concentration, and the woven mesh may loosen and detach due to wire corrosion, causing the entire cage to disintegrate. Third, when filling traditional gabion cages with stones, coarse stones are usually filled all at once without a tiered filtration design. When water flows through the gabion, fine stone chips and soil particles are easily carried away, causing voids inside the gabion, hollowing out the slope foundation, and ultimately causing the cage to sink or collapse. To address these issues, we provide a corrosion-resistant PET polymer gabion mesh for hydraulic slope protection. Summary of the Invention

[0005] The purpose of this invention is to provide a corrosion-resistant PET polymer gabion mesh box for water conservancy slope protection. By using PET polymer materials for both the mesh frame and the frame rods, the maintenance and replacement costs are reduced, ensuring the long-term stability of the water conservancy facilities. At the same time, the use of the mesh frame and frame rods significantly shortens the construction period of the slope protection, and the layered mesh setting prevents the internal hollowing of the slope protection, significantly improving the long-term stability and erosion resistance of the slope protection.

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0007] This invention relates to a corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection, comprising a mesh frame and frame rods for supporting the mesh frame. Multiple frame rods are arranged along the edges of the mesh frame in an XYZ axis configuration. The mesh frame is formed by cutting and splicing PET polymer mesh sheets to create a box-shaped structure with internal storage space. The mesh openings of the mesh frame are regular polygonal. Both the mesh frame and the frame rods are coated with a corrosion-resistant layer. An openable mesh cover is provided at the upper opening of the mesh frame, and the sides of the mesh cover are hooked to the corresponding frame rods via double-headed hooks.

[0008] The invention is further configured such that the mesh frame is composed of multiple PET polymer mesh structures, and the sides of the mesh structures of the mesh frame are all tied to the corresponding frame rods by cable ties, which are self-locking cable ties made of PET material.

[0009] The present invention is further configured such that a connecting block is provided at the node of the end of each XYZ axis frame rod, an assembly rod is fixed to the middle of the end face of each connecting block relative to the frame rod, and an assembly hole is provided at both ends of each frame rod to cooperate with the assembly rod.

[0010] The invention is further configured such that the upper surface of the connecting block, which is at the same height as the mesh cover, is provided with insertion holes, and a hanging rod is provided at the upper end of each insertion hole, with the lower end of each hanging rod inserted into the corresponding insertion hole.

[0011] The invention is further configured such that at least one horizontally arranged layer of mesh is provided inside the space frame, and the four edges of the layer of mesh are tied to the space frame at the corresponding height by cable ties, so as to divide the interior of the space frame into multiple layers of filling space.

[0012] The invention is further configured such that the mesh density of the bottom mesh is greater than that of the side mesh to improve the bottom's resistance to stone impact.

[0013] The invention is further configured such that the double-headed hook is an integral injection-molded structure of PET polymer material, with its two ends hooked onto the mesh holes on the side of the mesh cover and the corresponding frame rod, and the surface of the double-headed hook is also provided with a corrosion-resistant layer.

[0014] The invention is further configured such that the corrosion-resistant layer is an epoxy resin coating or polyurethane coating applied to the outer surface of the space frame and frame rods, with a coating thickness of 0.2 mm to 0.5 mm, for resisting the erosion of acid, alkali and salt media in water.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention uses PET polymer materials for both the mesh frame and the frame rods, and coats their outer surfaces with epoxy resin or polyurethane corrosion-resistant layers. PET material itself has excellent acid and alkali resistance and hydrolysis resistance. Combined with the anti-corrosion coating, it can resist the erosion of acid, alkali and salt media in river and lake water for a long time, preventing the problems of rusting and breakage of traditional metal gabion cages. It is suitable for heavily polluted river channels or coastal slope protection projects, and its service life is far longer than that of ordinary galvanized or plastic-coated steel wire mesh cages, reducing maintenance and replacement costs and ensuring the long-term stability of water conservancy facilities.

[0017] 2. This invention arranges XYZ three-dimensional frame rods at the edges of the grid structure. The ends of the rods are connected to the assembly holes on the connecting blocks to form a rigid skeleton. The edges of the mesh are tied to the frame rods with PET self-locking cable ties. The mesh cover is hung on the frame rods with double-headed hooks. No welding or bolt fastening is required on site. Assembly can be completed by simply plugging and binding with cable ties, which greatly shortens the construction period of slope protection. It is especially suitable for large-area gabion laying in rivers, ditches and other areas.

[0018] 3. This invention divides the internal space into multiple layers by horizontally arranging at least one layer of mesh inside the gabion frame. During construction, the lower layer can be filled with coarse aggregate and the upper layer with medium and fine aggregate to form a graded reverse filter structure. The mesh density of the bottom mesh is greater than that of the side mesh, which can effectively prevent fine filler from leaking out from the bottom. When water flows through the gabion, the coarse and fine layering and the dense bottom design work together to ensure permeability and reduce the fine material being carried away by the water flow, preventing the slope from being hollowed out and significantly improving the long-term stability and erosion resistance of the slope.

[0019] Of course, any product implementing this invention does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 This is a plan view of the overall structure of the present invention.

[0023] Figure 3 This is a structural unfolded diagram of the space frame in this invention.

[0024] Figure 4 This is a structural diagram showing the fit between the frame rod and the hanging rod in this invention.

[0025] Figure 5 This is a structural diagram of the frame rod in this invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Space frame; 2. Frame rod; 201. Connecting block; 202. Assembly rod; 203. Insertion hole; 204. Assembly hole; 3. Cable tie buckle; 4. Hanging rod; 5. Net cover; 501. Double-headed hook; 6. Layered net. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1 to 5 This invention relates to a corrosion-resistant PET polymer gabion box for water conservancy slope protection, comprising a gabion frame 1 and frame rods 2 for supporting the gabion frame 1. Multiple frame rods 2 are arranged along the edges of the gabion frame 1 in an XYZ axis configuration. The gabion frame 1 is a box-shaped structure with internal storage space, formed by cutting and splicing PET polymer mesh sheets. The mesh openings of the gabion frame 1 are regular polygonal. The gabion frame 1 is constructed by cutting and assembling PET polymer mesh sheets into a box body, which encloses the stone filling cavity, allowing water permeability and backfiltration, preventing soil erosion, and stabilizing the slope by the weight of the stones. The frame rods 2 are arranged in an XYZ three-dimensional configuration, forming a three-dimensional rigid skeleton to prevent deformation and tearing of the gabion frame 1 due to water flow impact. Both the surface of the gabion frame 1 and the frame rods 2 are coated with a corrosion-resistant layer. An openable mesh cover 5 is provided at the upper opening of the gabion frame 1, and the sides of the mesh cover 5 are hooked to the corresponding frame rods 2 via double-headed hooks 501.

[0030] The mesh density of the bottom mesh of the space frame 1 is greater than that of the side mesh to improve the bottom's resistance to stone impact.

[0031] The double-headed hook 501 is an integral injection-molded structure made of PET polymer material. Its two ends are hooked onto the mesh holes on the side of the mesh cover 5 and the corresponding frame rod 2, respectively. The surface of the double-headed hook 501 is also provided with a corrosion-resistant layer. The corrosion-resistant layer is an epoxy resin coating or polyurethane coating applied to the outer surface of the mesh frame 1 and the frame rod 2. The coating thickness is 0.2mm to 0.5mm, which is used to resist the corrosion of acid, alkali and salt media in water.

[0032] Example 1, according to Figure 1It can be seen that the mesh frame 1 is composed of multiple PET polymer mesh structures, and the sides of the mesh structure of the mesh frame 1 are all tied to the corresponding frame rods 2 by cable ties 3. The cable ties 3 are self-locking cable ties made of PET material. The cable ties 3 self-lock and tie the mesh frame 1 to the frame rods 2, so as to achieve quick assembly and fix the mesh frame 1 to prevent it from loosening.

[0033] In this embodiment, both the mesh frame 1 and the frame rod 2 are made of PET material. On-site, the edges of the mesh frame 1 are tied to the frame rod 2 using cable ties 3. The dense mesh at the bottom of the mesh frame 1 can prevent small fillers from leaking out of the mesh holes, while the large-diameter holes on the side walls ensure that water can freely enter and exit, achieving water permeability and reverse filtration. The entire assembly process is simple, and it can be quickly assembled after being cut on-site, which greatly shortens the slope protection construction period and is suitable for large-scale slope protection construction scenarios in rivers and ditches.

[0034] Example 2, based on Example 1, according to Figure 4 and Figure 5 It can be seen that a connecting block 201 is provided at the node of the end of each XYZ axis frame rod 2. An assembly rod 202 is fixed at the middle of the end face of each connecting block 201 relative to the frame rod 2. An assembly hole 204 is opened at both ends of each frame rod 2 to cooperate with the assembly rod 202. An insertion hole 203 is opened on the upper end face of the connecting block 201 that is the same height as the mesh cover 5. A hanging rod 4 is provided at the upper end of each insertion hole 203, and the lower end of each hanging rod 4 is inserted into the corresponding insertion hole 203.

[0035] In this embodiment, the three-dimensional frame rods 2 constrain each other to form a closed rigid cage skeleton, which disperses the impact of water flow and the extrusion load of stone materials, and avoids damage to the grid frame 1 caused by single-point stress. The hanging rods 4 and the connecting blocks 201 are plug-in installed, which is convenient for disassembly and assembly, and serves as a calibration for subsequent superposition layers.

[0036] Example 3, based on Example 1, according to Figure 2 It is known that the interior of the space frame 1 is also provided with at least one horizontally arranged layer of mesh 6. The four edges of the layer of mesh 6 are tied to the space frame 1 at the corresponding height by cable ties 3, which is used to divide the interior of the space frame 1 into multiple layers of filling space.

[0037] In this embodiment, the horizontal layer net 6 is fixed inside the grid frame 1 using cable ties 3, dividing the inner cavity of the grid frame 1 into multiple layers. During construction, the lower layer is filled with large coarse stones, and the upper layers are laid with medium and small-sized aggregates. The coarse and fine stratification optimizes the reverse filtration effect and reduces the loss of fine fillers with seepage water. After the stones are filled, the net cover 5 is covered. The net cover 5 is connected to the frame rod 2 and the hanging rod 4 at both ends by the integrated PET double-headed hook 501, which locks the cage opening firmly with multiple points of limit. During the flood season, the stones are not easy to overflow when the water level is high. The double-headed hook 501 has an anti-corrosion coating and will not rust or break off after long-term immersion in water, thus improving the overall stability of the slope protection.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection, comprising a mesh frame (1) and frame rods (2) for supporting the mesh frame (1), wherein multiple frame rods (2) are arranged along the edges of the mesh frame (1) in an XYZ axis configuration; characterized in that: The mesh frame (1) is a box-shaped structure with internal storage space formed by cutting and splicing PET polymer mesh sheets. The mesh holes of the mesh frame (1) are regular polygons. The surfaces of the mesh frame (1) and the frame rods (2) are provided with corrosion-resistant layers. The upper opening of the mesh frame (1) is provided with an openable mesh cover (5). The side of the mesh cover (5) is hooked to the corresponding frame rods (2) by double-headed hooks (501).

2. The corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 1, characterized in that, The mesh frame (1) is composed of multiple PET polymer mesh structures, and the sides of the mesh structure of the mesh frame (1) are all tied to the corresponding frame rods (2) by cable ties (3). The cable ties (3) are self-locking cable ties made of PET material.

3. The corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 1, characterized in that, Each XYZ axis frame rod (2) has a connecting block (201) at the node of its end. Each connecting block (201) has an assembly rod (202) fixed at the middle of the end face of the frame rod (2). Each frame rod (2) has an assembly hole (204) at both ends that is used to cooperate with the assembly rod (202).

4. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 3, characterized in that, The upper surface of the connecting block (201) which is the same height as the mesh cover (5) is provided with a socket (203). A hanging rod (4) is provided at the upper end of each socket (203), and the lower end of each hanging rod (4) is inserted into the corresponding socket (203).

5. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 1, characterized in that, The interior of the space frame (1) is also provided with at least one horizontally arranged layer of mesh (6). The four edges of the layer of mesh (6) are tied to the space frame (1) of the corresponding height by cable ties (3) to divide the interior of the space frame (1) into upper and lower multi-layer filling spaces.

6. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 1, characterized in that, The mesh density of the bottom mesh of the frame (1) is greater than that of the side mesh to improve the bottom's resistance to stone impact.

7. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 1, characterized in that, The double-headed hook (501) is an integral injection-molded structure of PET polymer material. Its two ends are hooked onto the mesh holes on the side of the mesh cover (5) and the corresponding frame rod (2), and the surface of the double-headed hook (501) is also provided with a corrosion-resistant layer.

8. A corrosion-resistant PET polymer gabion mesh box for hydraulic slope protection according to claim 7, characterized in that, The corrosion-resistant layer is an epoxy resin coating or polyurethane coating applied to the outer surface of the space frame (1) and frame rods (2). The coating thickness is 0.2 mm to 0.5 mm, and it is used to resist the erosion of acid, alkali and salt media in water.