Adjustable modularized movable flexible protection device

Abstract

The invention discloses an adjustable modularized movable flexible protection device, and belongs to the technical field of protection engineering.The movable flexible protection device comprises a protection net and a movable box, the protection net can be contracted in the movable box, and a net body of the protection net is formed by organic fibers in an integrated warp knitting mode; multiple groups of wear-resistant rubber universal wheels are mounted at the bottom of the moving box. The movable flexible protection device supports single-person operation, extra tools and multi-person cooperation are not needed, the operation process is simplified, and the labor intensity of personnel and the operation threshold are reduced.

Description

Technical Field

[0001] This invention belongs to the field of protective engineering technology, specifically an adjustable, modular, movable, and flexible protective device. Background Technology

[0002] Traditional military protective flexible nets are mostly fixed or semi-fixed structures, with their core design focused solely on protective strength, relying on heavy materials and complex support structures to withstand impacts. However, facing the dynamic protection needs of mobile equipment, traditional protective nets suffer from three key problems:

[0003] (1) Low deployment efficiency: The protective net is heavy and complex, generally weighing hundreds of kilograms or even more. It requires special transportation equipment for transfer. In complex terrain, it requires multiple people to cooperate in deployment. The deployment time for a single set often exceeds 30 minutes, which cannot achieve "rapid response and rapid protection" and seriously limits the mobility range of mobile equipment.

[0004] (2) Poor scene adaptability: In complex terrains such as mountains and hills, a large amount of manpower and tools are required to work together. The deployment of a single protective net often takes more than 30 minutes, making it difficult to quickly form a protective barrier. There is a lack of special design for different scenarios, making it difficult to adapt to the rapid deployment of complex terrains such as mountains and hills.

[0005] (3) Insufficient ease of operation: Operation relies on manual labor, and the unfolding and folding depend entirely on manpower. The operation process is cumbersome, which not only increases the labor intensity of personnel, but also easily affects the protective effect due to improper operation. There is a significant time delay from receiving the protection instruction to completing the operation. Especially when a temporary military base encounters a sudden threat or when combat equipment needs to be quickly protected at the entrance and exit, the protection timeliness is extremely poor, which can easily lead to the risk of personnel or equipment exposure. Summary of the Invention

[0006] The technical problem to be solved by this invention is: in view of the technical problems existing in the prior art, this invention provides an adjustable, modular, movable, flexible protective device with high interception efficiency, strong synergy, and adaptability to multiple scenarios.

[0007] To solve the above-mentioned technical problems, the technical solution proposed by this invention is as follows:

[0008] An adjustable, modular, movable flexible protective device includes a protective net and a movable box. The protective net can be retracted into the movable box. The net body is made of organic fiber warp-knitted in one piece. Multiple sets of wear-resistant rubber casters are installed at the bottom of the movable box. The protective net can be extended out of the movable box or retracted into the movable box via a lifting component.

[0009] A further improvement to the above technical solution is as follows:

[0010] Preferably, the flexible protective device further includes multiple air buoys connected to the top of the net body. The interior of the air buoy is divided into multiple independent air chambers. When the air buoy is not inflated, it is stored in a mobile box together with the net body.

[0011] Preferably, the airship is made of high-strength polyester film, and the airship is provided with an air release valve at the top and an air inflation valve at the bottom.

[0012] Preferably, the mobile box is made of engineering plastic, and a spring is provided at the bottom of the mobile box, which is compressed when the net is retracted into the mobile box.

[0013] Preferably, the protective net includes a net body and a support part. The support part includes metal posts and metal rods. Two metal posts are provided respectively, and the metal rods are fixed between the tops of the two metal posts. The metal rods and metal posts form a frame structure for installing the net body.

[0014] Preferably, the metal rod is made of galvanized alloy steel and is cylindrical.

[0015] Preferably, the metal column is made of galvanized alloy steel and is a telescopic spring rod. It is made of spring steel with a multi-section nested structure, and the diameter of each section increases sequentially from the inside to the outside, with an internal spring.

[0016] Preferably, the protective net is further provided with multiple connecting rings, which are located on the left and right sides of the net and are symmetrically spaced apart. The left and right sides of the net are connected to metal posts through the connecting rings.

[0017] Preferably, the metal column is provided with multiple limiting blocks, and each connecting ring is disposed at a limiting block.

[0018] The adjustable, modular, and movable flexible protective device provided by this invention has the following advantages compared with the prior art:

[0019] (1) The movable flexible protective device of the present invention adopts a combination design of wheeled cargo box + multi-cavity membrane aircraft. The cargo box is lightweight and easy to push by a single person. The aircraft assists in the rapid deployment of the protective net. No complicated assembly is required. Deployment and storage can be completed within 2 minutes. It has the characteristics of high strength and lightweight. With a simple support structure, it ensures convenient deployment while guaranteeing the reliability of protection.

[0020] (2) The movable flexible protective device of the present invention supports single-person operation, without the need for additional tools or multi-person collaboration. The core actions can be completed by button or remote control, simplifying the operation process and reducing the labor intensity and operation threshold of personnel. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the protective netting when it extends in Embodiment 1 of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure when the protective net is retracted in Embodiment 1 of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of the airship in Embodiment 1 of the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of the airship in Embodiment 1 of the present invention.

[0025] Figure 5 This is a schematic diagram of the structure of the metal column in Embodiment 2 of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure when the protective net is retracted in Embodiment 2 of the present invention.

[0027] Figure 7 This is a schematic diagram of the protective netting when it extends in Embodiment 2 of the present invention.

[0028] Figure 8 This is a schematic diagram of the structure of the mobile box in Embodiment 2 of the present invention.

[0029] Explanation of the labels in the diagram:

[0030] 1. Net body; 11. Net edge; 12. Support cable; 13. Upper connecting cable; 14. Lower connecting cable; 2. Metal post; 21. Limiting block; 22. Outermost post; 23. Secondary post; 24. Thirdary post; 25. Innermost post; 26. Lifting platform; 27. Signal transmission line; 28. Rubber buckle; 3. Metal rod; 4. Base; 5. Connecting ring; 6. Moving box; 61. Casters; 62. Flip cover; 63. Opening / closing port; 64. Hinge; 65. Opening / closing button; 66. Miniature servo motor; 7. Air levitation device; 71. Air release valve; 711. Check valve; 712. Inflation port; 713. Branch pipe; 72. Inflation valve; 721. Air release port. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] Figures 1 to 4 An embodiment of the adjustable modular movable flexible protective device of the present invention is shown. The flexible protective device includes a protective net and a movable box 6, wherein the protective net can be retracted into the movable box 6.

[0034] The protective netting includes a net body 1 and supporting cables 12. The net body 1 adopts a single-layer thickened structure or a double-layer structure. The net body 1 is made of organic fiber with a tensile strength ≥1500N / mm, and can withstand the impact of falling rocks due to its excellent impact resistance and abrasion resistance. The net edge 11 of the net body 1 is integrally warp-knitted with a rope diameter of 6mm to enhance the load-bearing capacity of concentrated loads. The lower edge of the net body 1 is equipped with a lower connecting cable, and the net body 1 is connected to the bottom of the mobile box 6 through the lower connecting cable 14.

[0035] In this embodiment, double-layered reinforced side sleeves are reserved at the net edges 11 on the left and right sides of the net body 1. The side sleeves are formed by folding back the edge of the net body 1 and warp-knitted locking the edge. The support cable 12 runs through the entire side sleeve to form an integrated "net-rope" structure. The inner diameter of the side sleeve is slightly larger than the diameter of the support cable 12 to ensure that the support cable can slip slightly when impacted to dissipate energy, while avoiding local shearing.

[0036] In this embodiment, a polyester fiber binding strap (UV-resistant stitching) is installed approximately every 0.5 m along the length of the side sleeve to re-tighten the support cable 12 to the net body 1, preventing the support cable from slipping due to long-term vibration. The binding strap needs to penetrate the side sleeve and wrap around the cable three times before being secured with a "double flat knot + stitching", with a stitching length ≥30 mm. During the installation phase, a 2kN pretension is applied to the support cable 12 using turnbuckles (M20, adjustment range ±150 mm) to ensure that the net body 1 maintains stable deflection under normal use; anti-loosening nuts and safety binding wires are added to both ends of the turnbuckles to prevent the wires from coming loose due to vibration. Through the above measures, the support cable 12 and the net body 1 form a flexible connection that allows for slight slippage, multi-point redundancy, and quick replacement, maintaining the flatness of the net surface while achieving "overall stress distribution, local deformation, and energy dispersion" under impact forces.

[0037] In this embodiment, the flexible protective device also includes multiple air-buoys 7, which are connected to the top of the net body 1 via upper connecting cables 13. The air-buoys 7 are made of high-strength polyester film, with internal partitions forming multiple independent air chambers; damage to a single chamber does not affect the overall levitation performance. When inflated, they can bear a maximum weight of 20 kg, providing sufficient buoyancy to assist the protective net in rapid deployment without manual lifting. When deflated, the air-buoys 7 can be stored together with the net body 1 in the mobile container 6.

[0038] In this embodiment, the airship is provided with a venting valve 71 at the top and an inflation valve 72 at the bottom.

[0039] In this embodiment, the inflation valve 71 includes a reverse-drain type tongue check valve 711, an inflation port 712, and a branch pipe 713. Each independent air chamber is equipped with a purely mechanical reverse-drain type tongue check valve. The tongue of the check valve 711 is made of silicone rubber with a thickness of 0.3 mm and a hardness of 55 Shore A. The tongue is located at the center of the bottom of each independent air chamber and requires no electric components. The check valve 711 and the inflation port 712 are connected by a rigid branch pipe. The inflation port 712 is equipped with a sealing element, such as a sealing cap. When inflation is required, when air is supplied to the inflation port 712 from the outside, the airflow pushes the silicone rubber tongue upward, and the valve automatically opens. After the air supply stops, the tongue immediately falls back under the combined action of its own elasticity and the air pressure inside the chamber and presses against the inner edge of the valve seat of the check valve 711, automatically closing the valve and realizing the automatic check function of "opening when air is supplied and closing when air is stopped".

[0040] In this embodiment, the deflation valve has a similar structure to the inflation valve, including a check valve, a deflation port 721, and a branch pipe. Each independent air chamber is equipped with a purely mechanical check valve. The check valve and the deflation port 721 are connected by a rigid branch pipe. The deflation port 721 is equipped with a manual release mechanism, which can be made of metal or plastic. When deflation is required, the deflation valve is manually released to release the gas inside the bladder. After releasing the valve, the tongue automatically returns to its original position under the action of a spring, resealing and preventing gas leakage.

[0041] The airship of this invention is made of high-strength polyester film, internally divided into multiple independent air chambers. The airship's design meets the requirements of CCAR-31, Clause 31.44, ensuring that under limited loads, localized damage does not escalate to the point of causing uncontrolled flight or landing. Specifically, each air chamber of the airship 7 undergoes special treatment to enhance its tear resistance. When an air chamber is subjected to external impact or damage, the design and structure of the air chamber material prevent the spread of damage, thereby ensuring the overall performance and safety of the airship. Furthermore, the multiple independent air chambers of the airship provide additional safety assurance; even if a single air chamber is damaged, the others can still maintain sufficient buoyancy, ensuring the stability and reliability of the protective device.

[0042] In this embodiment, the mobile box 6 is made of engineering plastic and has a built-in high-strength spring steel spring (wire diameter 4mm or more). When stored, the spring contracts to tightly store the protective net; when unfolded, the spring automatically releases its elasticity, pushing the net out quickly without manual pulling. Multiple sets of wear-resistant rubber casters 61 are installed at the bottom, providing anti-slip and shock-absorbing properties, suitable for complex terrains such as sand and mud. The mobile box 6 has an entrance and an automatically opening door; this structure is common and will not be described in detail here.

[0043] This invention's movable flexible protective device employs a combination design of a wheeled mobile box and a multi-chamber membrane aerostat. The mobile box 6 is lightweight and easy for a single person to push, while the aerostat 7 assists in the rapid deployment of the protective net. No complex assembly is required; deployment and storage can be completed within 2 minutes. Pressing the "Deploy" button on the box automatically opens the box, an internal spring pushes the net out, and simultaneously the aerostat inflates and rises, causing the protective net to deploy. Deployment is completed within 2 minutes, forming a protective barrier. To retract, pressing the "Retract" button deflates the aerostat, the spring retracts the net back into the box, and the mobile box 6 automatically closes. The mobile box 6 can then be moved by pushing it.

[0044] Example 2

[0045] Figures 5 to 8 A second embodiment of the movable flexible protective device of the present invention is shown. The flexible protective device includes a protective net and a movable box 6, wherein the protective net can be retracted into the movable box 6.

[0046] The protective netting consists of net body 1, connecting rings, and support components. Net body 1 adopts a single-layer thickened structure or a double-layer structure. Net body 1 is made of organic fiber with a tensile strength ≥1500N / mm, enabling it to withstand the impact of falling rocks due to its excellent impact resistance and abrasion resistance. The edges of net body 1 are integrally warp-knitted, with a rope diameter of 6mm. Steel wire ropes enhance the load-bearing capacity under concentrated loads.

[0047] In this embodiment, the support includes metal columns 2, metal rods 3, and bases 4. Two metal columns 2 and two bases 4 are provided, with the metal columns 2 fixed by their corresponding bases 4. The bases 4 are fixedly installed inside the movable box 6. One metal rod 3 is provided, fixed between the tops of the two metal columns 2. The metal rod 3 and the metal columns 2 form a frame structure for the installation mesh 1. The metal columns 2 and metal rods 3 are made of galvanized alloy steel, and the metal rod 3 is cylindrical.

[0048] In this embodiment, the metal column 2 is a telescopic spring rod, made of high-strength spring steel with a multi-section nested structure. The diameter of each section increases by 5mm from the inside to the outside, and it has an internal spring (3mm wire diameter). The metal column 2 can extend automatically, with a maximum extension length of 3m. The bottom is snapped into the fixed seat inside the cargo box without the need for bolts, and installation requires no tools. Each section is equipped with a limit block 21 for positioning the connecting ring between each section.

[0049] Furthermore, the metal column 2 comprises, from the outside in, an outermost column 22, a second-layer column 23, a third-layer column 24, and an innermost column 25, with the diameter of each layer increasing from the inside out. The metal column 2 also includes a signal transmission line 27, one end of which is connected to the bottom center of the outermost column 22, and the other end passes through the second-layer column 23 and the third-layer column 24 before connecting to the innermost column 25. Springs are fixedly installed between adjacent layers, and the signal transmission line 27 passes through all the springs. A lifting platform 26 is provided between the springs and the upper column. Except for the outermost column 22, each of the remaining columns has multiple rubber clips 28 on the outer side of its bottom for easy lifting and lowering.

[0050] In this embodiment, the micro servo motor 66 precisely controls each lifting platform 26 via the signal transmission line 27, enabling the layer-by-layer expansion and contraction of the metal column. Each column is equipped with a rubber buckle 28 with a concave ring at its bottom to ensure secure fixation when raised to the top. This design not only improves structural stability but also enhances operational flexibility and precision.

[0051] In this embodiment, multiple connecting rings 5 ​​are provided, and the multiple connecting rings 5 ​​are located on the left and right sides of the net body 1 and are symmetrically spaced. The left and right sides of the net body 1 are connected to the metal posts 2 through the connecting rings 5. Each connecting ring 5 is set at the limiting block 21, and the connecting ring 5 cannot cross the limiting block 21. When contracting, except for the connecting ring 5 at the top, the remaining connecting rings 5 ​​are located between the two limiting blocks 21.

[0052] In this embodiment, the mobile box 6 is made of a high-strength lightweight alloy (such as aluminum alloy, with a density of about 1 / 3 that of traditional steel) to form a wheeled cargo box. Multiple sets of wear-resistant rubber universal wheels 61 are installed at the bottom, which have anti-slip and shock-absorbing properties and are suitable for complex terrains such as sand and mud. The cargo box is equipped with a fixing slot and a buffer pad to prevent the protective components from shaking and being damaged during transfer. The overall weight of the cargo box is reduced by more than 40% compared to traditional transport boxes, and it can be easily pushed by a single person without the need for special transport equipment.

[0053] like Figure 8 As shown, in this embodiment, the top surface of the mobile box 6 is provided with a flip-top cover 62. One side of the flip-top cover 62 is hinged to the box body via a hinge 64, and the opening and closing is achieved via an opening and closing button 65 on the side of the mobile box. When the flip-top is opened, a rectangular opening and closing opening 63 is exposed. The length of the opening and closing opening 63 is greater than or equal to the width of the mesh 1, and the width is greater than or equal to the maximum outer diameter of the metal column 2, which is sufficient to allow the protective mesh and telescopic spring rod to extend or retract without obstruction. A cable routing cavity is reserved below the button 65, and the cable is connected to the micro servo motor 66 at the bottom of the box via a cable chain, forming a "one-button opening - one-button extension" operation path, which requires no tools throughout the process. The automatic opening and closing structure of the mobile box 6 is a well-known design technology in the art, and will not be described in detail here.

[0054] The flexible protective device in this embodiment uses a commercially available micro servo motor 66 to control the extension and retraction of the metal column 2. This motor is connected to the metal column 2 via a transmission mechanism (such as a gear, rack, or lead screw), enabling precise control of the metal column's extension and retraction. The micro servo motor can precisely control the position of the metal column 2, ensuring accurate extension and retraction; and the extension and retraction speed can be adjusted to adapt to different operational needs. The micro servo motor can control the acceleration of the extension and retraction movement, making the movement smoother. Commercially available micro servo motors are typically equipped with position feedback sensors, such as encoders, to achieve closed-loop control and improve control accuracy.

[0055] In this embodiment, when the mobile box is operated, simply pressing the "Extend" button will cause the micro servo motor 66 to rotate forward, pushing the metal column 2 to extend via the transmission mechanism. When the metal column 2 reaches the preset position, the micro servo motor 66 will automatically stop. Similarly, pressing the "Retract" button will cause the micro servo motor to rotate in reverse, and the metal column 2 will retract under the action of the transmission mechanism. The motor-controlled extension or retraction of the telescopic rod is a well-known structure in the mechanical field, and any structure that meets the extension / retraction requirements of this invention can be adopted.

[0056] In this design, the metal pillar 2 possesses sufficient strength and rigidity to support the weight of the protective netting and maintain structural stability. The extension and retraction of the metal pillar 2 is entirely controlled by a micro servo motor 66, requiring no additional auxiliary components.

[0057] When using the movable flexible protective device of the present invention, first push the movable box 6 to the target position, press the "extend" button, and the metal column 2 will automatically extend to the preset length; then, put the connecting rings of the edge of the protective net into each section of the metal column 2 in sequence to complete the positioning of the net body, the whole process takes ≤1.5 minutes; when storing, press the "retract" button, the metal column 2 will retract, and the net body will fold and be stored in the movable box 6 along with the metal column 2, and then push the movable box 6 to move.

[0058] 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. An adjustable, modular, movable, flexible protective device, characterized in that, The flexible protective device includes a protective net and a movable box. The protective net can be retracted into the movable box. The net body is made of organic fiber warp knitting. The bottom of the movable box is equipped with multiple sets of wear-resistant rubber casters. The protective net can be extended out of the movable box or retracted into the movable box through a lifting component.

2. The adjustable, modular, movable, flexible protective device according to claim 1, characterized in that, The flexible protective device also includes multiple air buoys connected to the top of the net. The interior of each air buoy is divided into multiple independent air chambers. When the air buoy is not inflated, it is stored in a mobile box together with the net.

3. The adjustable, modular, movable, flexible protective device according to claim 1, characterized in that, The airship is made of high-strength polyester film, and has an air release valve at the top and an air inflation valve at the bottom.

4. The adjustable, modular, movable, flexible protective device according to claim 2, characterized in that, The mobile box is made of engineering plastic, and a spring is installed at the bottom of the mobile box. The spring is compressed when the net is put into the mobile box.

5. The adjustable, modular, movable, flexible protective device according to claim 1, characterized in that, The protective netting includes a net body and a support section. The support section includes metal posts and metal rods. Two metal posts are provided, and the metal rods are fixed between the tops of the two metal posts. The metal rods and metal posts form a frame structure for installing the netting.

6. The adjustable, modular, movable, flexible protective device according to claim 5, characterized in that, The metal rod is made of galvanized alloy steel and is cylindrical.

7. The adjustable, modular, movable, flexible protective device according to claim 5, characterized in that, The metal column is made of galvanized alloy steel and is a telescopic spring rod. It is made of spring steel with a multi-section nested structure, and the diameter of each section increases sequentially from the inside to the outside, with an internal spring.

8. The adjustable, modular, movable, flexible protective device according to claim 6, characterized in that, The protective net is also provided with multiple connecting rings, which are located on the left and right sides of the net and are symmetrically spaced apart. The left and right sides of the net are connected to metal posts through the connecting rings.

9. The adjustable, modular, movable, flexible protective device according to claim 8, characterized in that, The metal column is provided with multiple limiting blocks, and each of the connecting rings is disposed at a limiting block.

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