Multi-adaptive splicing fixed organic fiber protective screen

Abstract

The application discloses a multi-adaptability splicable fixed organic fiber protective screen and belongs to the technical field of protective engineering. The multi-adaptability splicable fixed organic fiber protective screen comprises a screen body and a connecting part. The screen body can be single-layer or multi-layer, and a single-layer or double-layer or even multi-layer structure is selected according to the scene of building, rockfall, unmanned aerial vehicle explosion and the like. The connecting part comprises a connecting ring and a reed hoop. A plurality of reed hoops are arranged at intervals and fixed on two metal columns respectively. Two edges of the screen body are connected with the reed hoops through the connecting ring, and the other two edges of the screen body are connected with the metal rods through the connecting ring. The multi-adaptability splicable fixed organic fiber protective screen has high interception efficiency, strong synergy and adaptability to multiple scenes. The number of screen units is set according to the used scene, and a protective screen system with different shapes is formed.

Description

Technical Field

[0001] This invention belongs to the field of protective engineering technology, specifically a multi-adaptable and splicable fixed organic fiber protective mesh. Background Technology

[0002] Traditional flexible protective nets (such as slope protection SNS systems) rely on steel rope nets / ring nets to "passively withstand" and intercept falling rocks, with designs focusing on structural strength and energy consumption. However, when faced with diversified threats (small, fast drones) and complex scenarios (temporary deployments for urban security), they reveal problems such as heavy weight, rigid deployment, poor corrosion resistance, poor mobility, and lack of real-time perception and intelligent response.

[0003] Traditional flexible protective nets mostly use single-layer steel rope nets or ring nets to intercept falling rocks in a "passive bearing" manner, with the core design focusing only on the strength of a single structure and the energy dissipation of the foundation. However, when faced with diversified threats (such as high-speed drone impacts, blast shock waves, and blast debris) and complex scenarios (such as falling objects from high-rise buildings and temporary military area protection), traditional protective nets have exposed many shortcomings: the single-layer structure cannot simultaneously cope with high-speed impacts and energy buffering, and the edges of the net surface are prone to tearing due to stress concentration. Summary of the Invention

[0004] The technical problem to be solved by this invention is: In view of the technical problems existing in the prior art, this invention provides a multi-adaptable splicable fixed organic fiber protective net with high interception efficiency, strong synergy, and adaptability to multiple scenarios. The number of net units can be set according to the scenario in which they are used to form a protective net system of different shapes.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this invention is as follows:

[0006] A multi-adaptive, splicable, fixed organic fiber protective mesh includes a mesh body, a connecting part, and a supporting part. The supporting part includes two metal posts and two metal rods, with two metal posts and two metal rods fixed between the two metal posts, forming a frame structure for mounting the mesh body. The connecting part includes connecting rings and reed hoops, with multiple reed hoops fixed to the two metal posts at intervals. The two sides of the mesh body are connected to the reed hoops via connecting rings. The mesh body can be single-layered, double-layered, or multi-layered.

[0007] A further improvement to the above technical solution is as follows:

[0008] Preferably, the mesh adopts a single-layer thickened structure, the mesh is made of organic fiber, and the edges of the mesh are integrally warp-knitted with the mesh.

[0009] Preferably, the mesh adopts a double-layer structure, wherein the outer or inner layer is one of organic fiber, high molecular weight polyethylene, aramid, polyimide, and polyester.

[0010] Preferably, the connecting part further includes a spring energy dissipator, which includes a spring and rings fixedly disposed at both ends of the spring. The spring is disposed in the inner cavity of a metal cylinder, and the rings are not fixedly connected to the metal cylinder. One end of the ring is connected to a single hole of the reed hoop, and the other end of the ring is connected to a connecting ring. Two sides of the net are connected to the spring energy dissipator through the connecting rings, and the other two sides of the net are connected to the metal rod through the connecting rings.

[0011] Preferably, a miniature tension sensor is embedded at the connecting ring where the spring energy dissipator connects to the mesh body.

[0012] Preferably, the net body includes a surface layer and a reinforcing layer. The surface layer is integrally formed using a warp knitting process, and the reinforcing layer is made of organic fiber ropes arranged in a double diagonally crossed bottom protective netting pattern behind the surface layer to form a "diagonal" structure to provide protective support.

[0013] Preferably, the mesh body is further provided with pressure-reducing rings, and multiple pressure-reducing rings are provided, with the edges of the mesh body being warp-knitted synchronously with the pressure-reducing rings.

[0014] Preferably, the edge of the net body is also provided with double-headed anchor ropes, the double-headed anchor ropes above the net body are fixed to metal rods, and the double-headed anchor ropes on both sides of the net body are connected to spring energy dissipators through the reed hoops of metal columns.

[0015] The multi-adaptive, splicable, fixed organic fiber protective mesh provided by this invention has the following advantages compared with the prior art:

[0016] (1) The multi-adaptable splicable fixed organic fiber protective mesh of the present invention abandons the single material and structure. It can flexibly select high-performance fibers (such as high-strength polyester, ultra-high molecular weight polyethylene, aramid) according to the mechanical requirements of scenarios such as construction, rockfall, and drone explosion, and combine them with double-layer or single-layer mesh structures to design rhomboid, circular, square and other mesh shapes to achieve a dual improvement in protection strength and adaptability in multiple scenarios.

[0017] (2) The multi-adaptive splicable fixed organic fiber protective netting of the present invention has an openable and closable connecting ring that subverts the traditional fixing method. The netting can be connected / disassembled by hand and a single module can be deployed within 5 minutes. The connecting ring is connected in series with the spring energy dissipation component. When impacted, the spring absorbs and disperses the pressure (such as the shock wave of an explosion or the impact force of a drone) through a "deformation-reset" cycle, making the netting more uniformly stressed and reducing the risk of breakage by 70%. At the same time, it gives the protective netting the dual functions of "rapid response + intelligent pressure reduction". A tension sensor is embedded at the netting ring where the spring energy dissipator connects to the netting to accurately and timely capture the impact load, providing core data support for intelligent monitoring and early warning.

[0018] (3) The multi-adaptive, splicable, fixed organic fiber protective netting of the present invention innovatively adopts a structure of "surface warp-knitted interception netting + inner layer rope overlapping protective netting". The surface warp-knitted netting adapts to impact dispersion through diamond-shaped mesh holes, and the netting edge and pressure-reducing ring are woven synchronously to strengthen edge performance; the reinforcing layer rope netting forms a "diagonal" grid with double oblique buffer ropes, and the cross nodes integrate adjustable pressure-reducing buckles with spring damping components to dynamically absorb impact energy and achieve "hard interception + soft buffering" synergistic protection. In addition, double-headed anchor ropes are used to connect the double-layer netting body around the edge of the warp-knitted netting, replacing the traditional simple binding, ensuring that the double-layer netting is stressed synchronously under impact load, with interlayer slippage ≤5mm, improving the overall protective synergy and avoiding the performance loss caused by interlayer separation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0020] Figure 2 This is a schematic diagram of the spring energy dissipator in Embodiment 1 of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 4 of the present invention.

[0022] Figure 4 This is a schematic diagram of the pressure relief buckle in Embodiment 4 of the present invention.

[0023] Figure 5 This is a schematic diagram of the pressure-reducing ring in Embodiment 4 of the present invention.

[0024] Figure 6 This is an installation diagram of Embodiment 4 of the present invention.

[0025] Explanation of the labels in the diagram:

[0026] 1. Net body; 11. Surface layer; 12. Reinforcing layer; 13. Pressure relief buckle; 14. Pressure relief ring; 15. Double-headed anchor rope; 2. Metal column; 21. Connecting plate; 3. Metal rod; 4. Base; 5. Connecting ring; 6. Spring energy dissipator; 61. Spring; 62. Ring body; 63. Metal cylinder; 7. Reed hoop. Detailed Implementation

[0027] The following provides a detailed description of specific embodiments of the present invention. It should be understood that the specific embodiments described herein are for illustrative and explanatory purposes only and are not intended to limit the scope of the invention.

[0028] Example 1

[0029] Figure 1 and Figure 2 This invention illustrates one embodiment of a multi-adaptive, splicable, fixed organic fiber protective netting, designed for building protection (falling object resistance, impact energy ≤ 5kJ). The multi-adaptive, splicable, fixed organic fiber protective netting of this invention includes a net body 1, connecting parts, and supporting parts. Building protection requires emphasis on toughness and tear resistance. The net body 1 adopts a single-layer thickened structure, and is made of organic fiber with a tensile strength ≥ 1500N / mm, enabling it to withstand falling rock impacts due to its excellent impact resistance and abrasion resistance. The edges of the net body 1 are integrally warp-knitted, with a rope diameter of 6mm. Steel wire ropes enhance the concentrated load bearing capacity, and the mesh is designed in a diamond shape to prevent clogging.

[0030] like Figure 1 As shown, in this embodiment, the net body 1 is also provided with pressure-reducing rings 14. Multiple pressure-reducing rings 14 are arranged at intervals on the upper and lower sides of the net body 1. The edges of the net body 1 and the pressure-reducing rings 14 are warp-knitted synchronously. The pressure-reducing rings 14 are made of alloy steel, with a diameter of 8-12mm and a tensile strength ≥520MPa. They are integrally formed with the net surface fibers, eliminating the need for subsequent installation. This simplifies the production process and increases the tear resistance of the net edge by 40%, preventing tearing caused by edge stress concentration. Using the integrated warp-knitted pressure-reducing rings 14 at the edges of the warp-knitted net, the pressure-reducing rings 14 can be directly hung on the metal rod 3 or the pre-set hanging points of the support, without the need for additional fasteners, bolts, or other connecting parts. This serves to reduce pressure and buffer deformation. The structural strength of the pressure-reducing rings 14 can directly bear the net body 1 and impact loads, ensuring a stable connection.

[0031] In this embodiment, the support includes metal columns 2, metal rods 3, and bases 4. Two metal columns 2 are provided, each fixed upright by the base 4. Two metal rods 3 are provided, each fixed between two metal columns 2. The metal rods and metal columns 2 form a frame structure for the installation mesh 1. The ends of the metal rods 3 are fixedly connected to the metal columns 2 via right-angled connecting plates 21.

[0032] In this embodiment, metal column 2 and metal rod 3 are made of galvanized alloy steel. Metal column 2 has a rectangular cross-section and its height is adjustable from 2 to 5 meters. Metal rod 3 has a circular cross-section with a diameter of 30 mm and a wall thickness of 3 mm. It is spliced ​​with metal column 2 through connecting plate 21 to form a "frame-type" support that can withstand horizontal loads ≥ 5 kN. The base is a precast concrete component with dimensions of 500 mm × 500 mm × 300 mm. The built-in anchors have a diameter of 20 mm and a length of 300 mm and are rigidly connected to metal column 2. For complex terrain (such as mountain slopes and building facades), the base can be replaced with a combination of "anchor rods + steel plates". The anchor rods have a diameter of 25 mm and a length of 2-4 meters to ensure the overturning stability of the mesh.

[0033] In this embodiment, the connecting part includes a connecting ring 5, a spring energy dissipator 6, and a reed hoop 7. The reed hoop 7 is a single-hole reed hoop, and multiple reed hoops 7 are provided, correspondingly fixed to two metal posts 2 at intervals. The spring energy dissipator 6 includes a spring 61 and rings 62 fixedly disposed at both ends of the spring. The spring 61 is disposed inside a metal cylinder 63, and the rings 62 are not fixedly connected to the metal cylinder 63. One end of the ring 62 is connected and positioned to the single hole of the reed hoop 7, and the other end of the ring 62 is connected to the connecting ring 5. The left and right sides of the mesh 1 are connected to the spring energy dissipator 6 via the connecting ring 5, and the upper and lower sides of the mesh 1 are connected to the metal rod 3 via a pressure-reducing ring 14. The spring is made of high-strength alloy spring steel with a wire diameter of 3-5mm and 8-12 coils, and is covered by a corrosion-resistant metal cylinder 63, connected in series with the connecting ring 5 to form a "buffer chain". The connecting ring 5 is an openable structure, forged from alloy steel. The main body is a "C-shaped + elastic buckle" structure with an opening width of 10-20 mm. It can be opened and closed by pressing the buckle by hand.

[0034] In this embodiment, one end of the connecting ring 5 is nested within the thicker organic fiber mesh edge of the mesh body 1, and the other end is connected to the spring energy dissipator 6. In use, align the buckle of the connecting ring 5 with the interface of the spring energy dissipator 6 and press to close it to complete the fixation; for disassembly, press the buckle in the opposite direction to quickly separate the mesh body 1 from the spring energy dissipator 6. Disassembly takes ≤5 minutes, which is 6 times more efficient than traditional bolt connections.

[0035] In addition, when an impact occurs (such as a drone impact force of 1000N or an explosion shock wave pressure of 200kPa), the spring first absorbs 50%-70% of the energy through "compression-rebound", so that the energy is dispersed and evenly transmitted to the mesh 1 and the support, avoiding local stress concentration that could lead to breakage.

[0036] In this embodiment, a miniature tension sensor is embedded in the connecting ring 5 connecting the spring energy dissipator 6 and the mesh 1. The sensor has an accuracy of ±0.1N and a range of 0-50kN, and is positioned close to the key energy buffer node. Preferably, one sensor is placed at the connecting node for every 2㎡ of mesh 1 to capture impact loads and mesh deformation in real time. The sensor can accurately capture load data "after decompression + before mesh conduction," promptly reflecting the actual stress state of the mesh and providing high-value, low-latency core data for subsequent intelligent monitoring and early warning.

[0037] Example 2

[0038] The difference between this embodiment and Embodiment 1 lies in its focus on rockfall protection, specifically the design of the net body 1. Rockfall protection requires resistance to rolling / falling impacts with an energy of 5-50kJ. This protection emphasizes impact resistance and abrasion resistance. Net body 1 employs a single-layer thickened structure, with the main body made of one of the following: organic fiber, ultra-high molecular weight polyethylene, high molecular weight polyethylene, aramid, polyimide, or polyester. Its tensile strength is ≥1500N / mm, providing excellent impact and abrasion resistance to withstand rockfall impacts. The edges of net body 1 are reinforced with steel wire ropes with a diameter of 6mm. The mesh is designed in a rhomboid shape with a side length of 50-80mm to accommodate rockfall sizes and prevent mesh clogging.

[0039] Example 3

[0040] The difference between this embodiment and Embodiment 1 lies in its focus on drone explosion protection, specifically the design of the mesh 1. Drone explosion protection requires resistance to high-speed impacts and shock waves with energy ranging from 50 to 500 kJ. This protection necessitates a combination of "hard interception" and "soft buffering." Mesh 1 employs a double-layered structure: the outer layer is made of ultra-high molecular weight polyethylene (UHMWPE), which, with its high strength, withstands the high-speed impact of drone debris at 80 m / s; the inner layer is made of aramid (Kevlar) fiber mesh, utilizing its excellent energy absorption characteristics to absorb over 60% of the explosive shock wave energy. The mesh is diamond-shaped with a diameter of 7-8 mm, enhancing the interception effect on high-speed debris.

[0041] Example 4

[0042] like Figures 3 to 6As shown, the difference between this embodiment and Embodiment 1 lies in the net body 1 and the connecting parts. The net body 1 includes a surface layer 11 and a reinforcing layer 12. The surface layer 11 is integrally formed using a warp-knitting process, and ultra-high molecular weight polyethylene (UHMWPE) fiber is selected as the warp-knitting substrate. The mesh is designed in a diamond shape, and the size is set according to the different scenarios: 20-30 mm for building protection scenarios (intercepting falling objects from high altitudes), 50-80 mm for rockfall protection scenarios (avoiding rockfall blockage), and 10-20 mm for drone explosion protection scenarios (intercepting high-speed debris). The surface layer 11 and the reinforcing layer 12 are selected from appropriate organic fiber ropes or other high molecular weight polyethylene, aramid, polyimide, and other materials according to different protection scenarios. In this embodiment, the reinforcing layer 12 is made of aramid fiber rope with a diameter of 8-12 mm and a breaking strength ≥3500 MPa. It is arranged in a double oblique cross pattern on both sides of the surface layer 11 to form a "diagonal" composite grid. The grid size is 1.5 times the size of the warp-knitted mesh in the corresponding scenario (e.g., 30-45 mm for building protection) to ensure that the rope net can withstand the energy transmitted by the warp-knitted mesh under impact load.

[0043] like Figure 4 As shown, in this embodiment, the cross nodes of the reinforcing layer 12 have an adjustable pressure relief buckle 13 built in. The adjustable pressure relief buckle 13 integrates a spring damping component (spring wire diameter 1-2mm, number of turns 3-4). The damping component is covered with a corrosion-resistant metal cylinder (material 304 stainless steel). The tightness of the pressure relief buckle 13 can be adjusted to adapt to different impact energies (5-500 kJ). During impact, the spring absorbs 30%-50% of the energy through "compression-rebound", dynamically buffering the impact load.

[0044] In this embodiment, the net body 1 adopts a structure of "surface warp-knitted interception net + inner rope overlapping protection net". The surface warp-knitted net adapts to impact dispersion through diamond mesh, and the net edge and the pressure-reducing ring 14 are woven synchronously to strengthen the edge performance. The inner rope net forms a "diagonal" grid with double oblique buffer ropes, and the adjustable pressure-reducing buckle 13 with spring damping component integrated at the intersection node dynamically absorbs impact energy and achieves "hard interception + soft buffer" coordinated protection.

[0045] In this embodiment, the net body 1 is also equipped with double-headed anchor ropes 15, with a diameter of 10-14 mm, a tensile strength ≥2000 N / mm, and an anti-corrosion coating (thickness 5-8 μm) to improve weather resistance. Connection points are set every 300-500 mm along the edge of the warp-knitted net, adjusted according to the impact intensity of the scene: 300 mm for drone explosion protection and 500 mm for rockfall protection. One end of the double-headed anchor rope is fixed to the upper metal rod, and the other end is connected to the spring energy dissipator 6 connected in series with the reed hoop 7 above the metal column 2. If a tight fit between the two layers of net body is required, it can be achieved by tying the ends of the double-headed anchor ropes 15 around the edge of the warp-knitted net body. Under impact load, the layers are subjected to synchronous force, with a slippage of ≤5 mm, avoiding interlayer separation failure and avoiding the problems of high fiber friction coefficient and performance loss.

[0046] In this embodiment, double-headed anchor ropes 15 are used to ensure that the two layers of netting are stressed synchronously under impact loads, with interlayer slippage ≤5mm, improving overall protective synergy and avoiding performance loss caused by interlayer separation. Using the anchor eyes machined at the ends of the double-headed anchor ropes 15, the anchor eyes are fitted into the hanging points of the support rods or supports, achieving rapid connection between the rope protection netting and the supporting structure. Since the double-headed anchor ropes 15 are already fixed to the surface warp-knitted barrier netting, the rope netting can be positioned synchronously after the connection is completed, without the need for separate adjustment of the netting position.

[0047] The protective netting in this embodiment can be installed by simply attaching the pressure-reducing rings and anchor holes to the corresponding support points, which can be done by a single person. When disassembling, the pressure-reducing rings and anchor holes can be removed directly without the need for tools, which greatly simplifies the installation process and is suitable for rapid deployment and evacuation needs in various scenarios such as buildings, mountains, and temporary military bases.

[0048] Building protection scenario: The surface layer is a warp-knitted mesh with diamond-shaped openings of 20-30mm, and the reinforcing layer is a 12-layer rope net with a buffer rope diameter of 8-10mm. The layer spacing is 500mm, suitable for the impact characteristics of falling objects from heights (weight ≤10kg, speed ≤10m / s). Through warp-knitted mesh interception and rope net buffering, it prevents falling objects from penetrating or the net from tearing. The double-layer net can effectively intercept falling objects from heights, significantly reducing the tear rate of the net and improving the tear resistance of the edges, avoiding protection gaps caused by edge failure.

[0049] Rockfall protection scenario: The surface layer is a warp-knitted mesh with diamond-shaped openings of 50-80mm, and the inner layer is a rope mesh with buffer ropes of 12-15mm diameter. The layer spacing is 500mm. This design is designed to withstand the rolling impact of falling rocks (weight ≤500kg, speed ≤20m / s). The large mesh openings prevent rockfall blockage, and the rope mesh cross-node buffer buckles enhance energy absorption. Faced with falling rock impacts, the rockfall penetration rate is significantly reduced. The rope mesh buffer buckles effectively absorb impact energy, and the maximum deformation of the mesh body is controlled within a reasonable range, effectively protecting the structure below.

[0050] In low-altitude drone scenarios: The outer layer is a warp-knitted mesh with diamond-shaped openings of 10-20mm, and the inner layer is a rope mesh with a buffer rope diameter of 10-12mm. The layer spacing is 300mm. This system intercepts drones (speed ≤80m / s) and completely dissipates their energy or slows them down. The small mesh openings intercept debris, and spring damping components absorb the energy of the blast shock wave. It can withstand impacts from drones or building debris, with a high success rate of protection. Under blast impact, the two layers of mesh deform synchronously without interlayer separation, resulting in a significant improvement in overall protective effectiveness compared to traditional double-layer meshes.

[0051] The above embodiments are merely preferred examples of the present invention and are not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A versatile, splicable, fixed organic fiber protective mesh, characterized in that, The multi-adaptive, splicable, fixed organic fiber protective netting includes a net body, a connecting part, and a supporting part. The supporting part includes metal posts and metal rods, with two metal posts and two metal rods respectively fixed between the two metal posts. The metal rods and metal posts form a frame structure for installing the net body. The connecting part includes connecting rings and reed hoops, with multiple reed hoops respectively fixed to the two metal posts at intervals. The two sides of the net body are connected to the reed hoops through connecting rings. The net body can be single-layered, double-layered, or multi-layered.

2. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 1, characterized in that, The mesh adopts a single-layer thickened structure, the mesh is made of organic fiber, and the edges of the mesh are woven together with the mesh sheet.

3. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 1, characterized in that, The mesh adopts a double-layer structure, with the outer or inner layer being one of organic fibers, high molecular weight polyethylene, aramid, polyimide, and polyester.

4. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 2 or 3, characterized in that, The connecting part also includes a spring energy dissipator, which includes a spring and rings fixedly disposed at both ends of the spring. The spring is disposed in the inner cavity of a metal cylinder. The rings are not fixedly connected to the metal cylinder. The ring at one end of the spring is connected to a single hole of the reed hoop, and the ring at the other end is connected to a connecting ring. Two sides of the net are connected to the spring energy dissipator through the connecting rings, and the other two sides of the net are connected to the metal rod through the connecting rings.

5. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 4, characterized in that, A miniature tension sensor is embedded at the connecting ring where the spring energy dissipator connects to the mesh.

6. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 4, characterized in that, The netting consists of a surface layer and a reinforcing layer. The surface layer is integrally formed using a warp-knitting process, and the reinforcing layer is arranged in a double diagonal cross pattern behind the surface layer protective netting to form a "diagonal" structure.

7. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 6, characterized in that, The mesh body is also provided with pressure-reducing rings, and there are multiple pressure-reducing rings. The edges of the mesh body are knitted synchronously with the pressure-reducing rings.

8. The multi-adaptive, splicable, fixed organic fiber protective mesh according to claim 7, characterized in that, The edge of the net is also provided with double-headed anchor ropes. The double-headed anchor ropes on the top of the net are fixed to metal rods, and the double-headed anchor ropes on both sides of the net are connected to spring energy dissipators through the reed hoops of metal columns.

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