Hail guard deployable elastic netting device

Abstract

The hail protection deployable elastic net cover device relates to the technical field of hail protection equipment and is used for providing a hail protection net cover device with the functions of folding storage, reliable unfolding locking, multi-layer buffer protection and convenient installation. The hail protection deployable elastic net cover device comprises a folding connecting rod frame, a multi-layer elastic net body, a driving mechanism and a fixing mechanism. The folding connecting rod frame is composed of a longitudinal main connecting rod, a transverse auxiliary connecting rod, a U-shaped hinge seat and a spring locking bolt. The longitudinal main connecting rod and the transverse auxiliary connecting rod are hingedly connected through the U-shaped hinge seat. The frame is rigidly locked through the spring locking bolt when the frame is completely unfolded. The multi-layer elastic net body comprises an outer protective net, a middle buffer net, an inner adhering net and an edge reinforcing woven tape. The three-layer net body is connected in sequence, and the edge is reinforced through the edge reinforcing woven tape. The driving mechanism is used for driving the folding connecting rod frame to unfold or fold. The fixing mechanism is used for fixing the device and the carrier and connecting the net body and the frame.

Description

Technical Field

[0001] This application relates to the field of hail protection equipment technology, and in particular to a deployable elastic hail protection net cover device. Background Technology

[0002] In areas prone to hail, vehicles, crops, and outdoor equipment are easily damaged by hail impacts. Existing hail protection devices mainly suffer from the following drawbacks: fixed protective nets are bulky, cannot be folded and stored, occupy a large space, and have poor portability; simple folding nets have unreliable frame connections, insufficient stability after unfolding, and are easily deformed by wind or impact; protective nets are mostly single-layer structures, lacking cushioning design, allowing hail impact energy to be directly transferred to the protected object, resulting in limited protective effectiveness. Utility Model Content

[0003] This application provides a hail protection deployable elastic net cover device, which is used to provide a hail protection net cover device with folding and storage function, reliable unfolding and locking, multi-layer buffer protection, and convenient installation.

[0004] This application provides a deployable elastic net cover device for hail protection, including a folding linkage frame, a multi-layer elastic net, a drive mechanism, and a fixing mechanism; the folding linkage frame consists of a longitudinal main link, a transverse auxiliary link, a U-shaped hinge seat, and a spring locking pin, the longitudinal main link and the transverse auxiliary link are hinged through the U-shaped hinge seat, and the frame is rigidly locked by the spring locking pin when fully deployed.

[0005] The multi-layer elastic netting includes an outer protective netting, a middle buffer netting, an inner bonding netting, and edge reinforcing webbing. The three layers of netting are connected in sequence, and the edges are reinforced by edge reinforcing webbing. The driving mechanism is used to drive the folding linkage frame to unfold or fold, and the fixing mechanism is used to fix the device to the carrier and connect the netting to the frame. In some embodiments of this application, the longitudinal main connecting rod is a hollow hexagonal cross-section tubular structure, which is hinged in 3-4 sections, with a single section length of 1.5m, a diameter of 25mm, and a wall thickness of 2mm; the transverse auxiliary connecting rod is a hollow circular cross-section tubular structure, with 3-4 rods evenly arranged between every 2 longitudinal main connecting rods. In some embodiments of this application, the longitudinal main connecting rod and the transverse auxiliary connecting rod are made of aviation aluminum alloy and the surface is anodized; the U-shaped hinge seat is a 304 stainless steel sheet structure with a thickness of 5mm and an opening width of 28mm. After the two ends of the connecting rod are inserted into the opening slot of the hinge seat, they are hinged through by stainless steel pins, and nylon washers are sleeved on both ends of the pins. In some embodiments of this application, the spring locking pin is a cylindrical structure of 304 stainless steel with a diameter of 8mm and a length of 35mm. It has a hemispherical buckle head at the end and a spring groove in the middle, with a spring steel spring inside. The longitudinal main connecting rod has a pin hole with a diameter of 9mm that is compatible with the spring locking pin. When the frame is unfolded to the point where the connecting rod is in a 180° straight line, the pin is automatically inserted into the pin hole under the action of the spring force. In some embodiments of this application, the outer protective mesh is a diamond-shaped mesh of ultra-high molecular weight polyethylene fiber with a pore size of 6mm×6mm; the middle buffer mesh is a wavy elastic mesh of aramid 1414 fiber + silicone coating with a wave crest height of 15mm and a wavelength of 50mm; the inner bonding mesh is a square mesh of polyester elastic yarn with a pore size of 8mm×8mm; the three meshes have the same size, and the size of the outer protective mesh is slightly larger than the unfolded size of the folding linkage frame. In some embodiments of this application, the outer protective net and the middle buffer net are fixed by silicone straps with a diameter of 5 mm, one strap is arranged every 30 cm, and the two ends are fused with the net fibers by hot-press vulcanization process; the middle buffer net and the inner bonding net are bonded and fixed by wavy silicone strips with a length of 80 mm and a crest of 15 mm. In some embodiments of this application, the edge reinforcement webbing is PU coated polyester webbing, 25mm wide and 2mm thick, sewn around the perimeter of the mesh, with a connecting hole every 15-20cm. In some embodiments of this application, the drive mechanism includes a push rod and a storage strap; the push rod is a telescopic rod with a stroke of 1.2m and an outer diameter of 30mm, using an aluminum alloy cylinder body + stainless steel telescopic rod, with a ball joint at the end, the ball joint allowing a rotation angle of ±15°, and is fixed to the middle ear plate of the first section of the main connecting rod of the frame by M8 bolts; the storage strap is a nylon webbing with Velcro fasteners. In some embodiments of this application, the push rod is a manual push rod or an electric push rod, and the electric push rod is equipped with a 12V DC motor.

[0006] Beneficial effects:

[0007] The folding linkage frame adopts a multi-section hinge + spring locking design, which is highly rigid when unfolded and small in size when folded (≤1.5m×0.3m×0.2m), making it easy to store and operable by a single person.

[0008] The multi-layered elastic mesh works synergistically, with the outer UHMWPE fiber mesh resisting penetration, the middle corrugated mesh buffering impact (rebound rate ≥95%), and the inner bonded mesh dispersing stress, resulting in a significantly better protective effect than a single-layer mesh. Reliable structural connections: The connecting rods and hinges are hinged by pins and nylon washers to reduce friction; the mesh and frame are locked by elastic buckles, balancing elasticity and stability to prevent impact-induced detachment. The fixing mechanism is highly adaptable: the adjustable clamps are compatible with carriers with a diameter of 20-50mm, the rubber pads are anti-slip and anti-scratch; the elastic buckles allow slight displacement of the net body and buffer local stress. Flexible driving method: manual / electric push rods are available, deployment / retraction time is ≤2 minutes, easy to operate, and suitable for different usage scenarios. Lightweight design: The overall weight is ≤12kg, and the materials combine strength and corrosion resistance (anodized aluminum alloy, rust-proof stainless steel, and wear-resistant polymer materials), resulting in a long service life. Attached Figure Description

[0009] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0010] Figure 1 This is a schematic diagram of a hail protection deployable elastic netting device provided in an embodiment of this application.

[0011] Reference numerals: 1-Folding linkage frame; 11-Main linkage; 12-Transverse auxiliary linkage; 13-U-shaped hinge seat; 2-Multi-layer elastic mesh; 3-Drive mechanism. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0013] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0014] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0016] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0017] A hail protection deployable elastic net cover device includes a folding linkage frame 1, a multi-layer elastic net body 2, a drive mechanism 3, and a fixing mechanism.

[0018] Folding linkage frame 1: It consists of longitudinal main link 11, transverse auxiliary link 12, U-shaped hinge seat 13 and spring locking pin.

[0019] The longitudinal main connecting rod 11 is a hollow hexagonal aluminum alloy tube with a single section length of 1.5m, a diameter of 25mm, and a wall thickness of 2mm. It is divided into 3 sections and is hinged by U-shaped hinge seat 13. When unfolded, it forms a rectangular frame with dimensions of 4.5m × 1.8m.

[0020] The transverse auxiliary connecting rod 12 is a hollow circular cross-section aluminum alloy tube, 1.8m long, 18mm in diameter, and 1.5mm thick. Three rods are evenly arranged between every two longitudinal main connecting rods 11 and are hinged to the main connecting rods 11 through U-shaped hinge seats 13.

[0021] The U-shaped hinge seat 13 is a sheet structure made of 304 stainless steel with a thickness of 5mm and an opening width of 28mm. After the two ends of the connecting rod are inserted into the opening slot of the hinge seat, they are hinged through a stainless steel pin with a diameter of 8mm. 2mm thick nylon washers are fitted at both ends of the pin. The spring locking pin is a cylindrical structure made of 304 stainless steel, with a diameter of 8mm and a length of 35mm. It has a hemispherical buckle head at the end and a spring groove in the middle. When the frame is fully extended (the connecting rod is in a 180° straight line), the pin automatically inserts into the pre-set pin hole (9mm in diameter) of the connecting rod under the action of the spring force, so as to achieve rigid locking. Multi-layer elastic mesh 2: includes an outer protective mesh, a middle buffer mesh, an inner bonding mesh, and edge reinforcing webbing.

[0022] The outer protective mesh is made of ultra-high molecular weight polyethylene (UHMWPE) fiber diamond mesh with a mesh size of 6mm×6mm and an overall size of 4.6m×1.9m. The edges are bound with 20mm wide polyester webbing. The middle buffer mesh is a wavy elastic mesh made of aramid 1414 fiber and silicone coating, with a wave crest height of 15mm and a wavelength of 50mm. Its dimensions are the same as those of the outer protective mesh.

[0023] The inner bonding mesh is a square mesh of polyester elastic yarn with a mesh size of 8mm×8mm. The size is the same as the outer protective mesh, and the edges have evenly distributed 10mm diameter connecting holes.

[0024] The edge reinforcement webbing is made of PU-coated polyester webbing, 25mm wide and 2mm thick, and is sewn around the perimeter of the mesh, with one connection hole every 15cm. The outer protective net and the middle buffer net are fixed with silicone straps with a diameter of 5mm (1 strap every 30cm). The ends of the straps are hot-pressed and vulcanized to fuse with the net fibers. The middle buffer net and the inner bonding net are bonded and fixed with wavy silicone strips with a length of 80mm and a crest of 15mm. Drive mechanism 3: includes manual / electric push rod and storage strap.

[0025] The push rod is telescopic with a stroke of 1.2m and an outer diameter of 30mm. It has an aluminum alloy cylinder and a stainless steel telescopic rod (the electric version is equipped with a 12V DC motor). The end has a ball joint, which is fixed to the middle ear plate (6mm thick) of the first section of the frame main connecting rod 11 by M8 bolts. The ball joint allows a rotation angle of ±15°.

[0026] The storage straps are made of nylon webbing, 20mm wide and 1.5m long, with Velcro fasteners for securing the frame after folding. Fixing mechanism: including adjustable clamps and elastic buckles.

[0027] The adjustable clamp is made of 304 stainless steel with a semi-circular arc structure. The inner diameter can be adjusted from 20 to 50 mm. It has a bolt locking structure and a 3 mm thick nitrile rubber pad on the inside. The elastic buckle is a polyurethane L-shaped columnar structure, 25mm in length and 10mm in diameter, with a rotating locking groove at the end. It is used to connect the reinforcing webbing at the edge of the mesh to the frame connecting rod, and locking is achieved by rotating 90°.

[0028] For example, component assembly. Frame assembly: The three longitudinal main connecting rods 11 are hinged together with pins through U-shaped hinge seats 13. Three transverse auxiliary connecting rods 12 are arranged between each main connecting rod 11, which are also hinged together through U-shaped hinge seats 13. A spring locking pin is installed at the end of the third section of the main connecting rod 11. The pin has a built-in spring steel spring. Mesh assembly: The outer protective mesh, the middle buffer mesh, and the inner bonding mesh are connected in sequence using silicone straps and wavy silicone strips, and the edges are sewn together with edge reinforcement webbing. Overall connection: The connecting holes of the reinforcing webbing at the edge of the net are locked to the frame connecting rods by elastic buckles (one buckle every 15cm); the ball joint of the push rod is fixed to the middle ear plate of the main connecting rod 11 by M8 bolts; adjustable clamps are installed at the four corners of the frame. Unfold the action. Unlock storage: Untie the storage straps to release the folded frame (Z-shaped fold); Drive unfolding: For the manual version, hold the push rod handle and pull it at a constant speed. For the electric version, connect to a 12V power supply and switch to "unfolding mode". The push rod telescopic rod extends at a speed of 5mm / s, causing the frame to rotate around the hinge and unfold.

[0029] Automatic locking: When the frame is fully extended (the connecting rods are in a 180° straight line), the spring locking pin pops out under the action of the spring force and inserts into the pin hole to achieve rigid locking of the frame.

[0030] Carrier fixing: Adjust the adjustable clamps to fit the vehicle's luggage rack (or temporary column), tighten the bolts, and attach the rubber pads to the carrier surface for anti-slip and anti-scratch protection. Net tension: During the frame unfolding process, the multiple layers of net are stretched synchronously. After the elastic buckles lock, the net tension is maintained at 5-8 N / m, and the middle layer of buffer net has a natural wave shape. Protection process. When hail strikes the outer protective netting, the diamond-shaped mesh prevents hail from penetrating, and the high strength of the UHMWPE fiber resists the impact; the middle buffer netting undergoes elastic deformation of ≤30mm after impact, absorbing ≥80% of the impact energy; the inner bonding netting helps to disperse the remaining force, preventing damage caused by excessive local pressure on the protected object (vehicle); the frame is fixed to the carrier by adjustable clamps, and the connecting rods and hinges bear the impact reaction force, maintaining structural stability. Recycling action.

[0031] Unlocking and fixing: Loosen the locking bolts of the adjustable clamp to detach it from the carrier; press the hemispherical end of the spring-locking pin, compress the spring to pull out the pin, and release the frame lock. Frame folding: For manual models, push the push rod in the opposite direction; for electric models, switch to "retract mode," and the push rod will retract, causing the frame to fold around the hinge into a Z-shape.

[0032] Storage and securing: Wrap the folded frame with storage straps and secure it with Velcro to complete storage (the stored volume is 1.5m × 0.3m × 0.2m).

[0033] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A deployable elastic hail protection netting device, characterized in that, Includes a folding linkage frame, a multi-layer elastic mesh, a drive mechanism, and a fixing mechanism; The folding linkage frame consists of a longitudinal main link, a transverse auxiliary link, a U-shaped hinge seat, and a spring locking pin. The longitudinal main link and the transverse auxiliary link are hinged through the U-shaped hinge seat. When the frame is fully unfolded, it is rigidly locked by the spring locking pin. The multi-layer elastic mesh includes an outer protective mesh, a middle buffer mesh, an inner bonding mesh, and edge reinforcement webbing. The three meshes are connected in sequence, and the edges are reinforced by edge reinforcement webbing. The driving mechanism is used to drive the folding linkage frame to unfold or fold, and the fixing mechanism is used to fix the device to the carrier and connect the net body to the frame.

2. The hail protection deployable elastic net cover device according to claim 1, characterized in that, The longitudinal main connecting rod is a hollow hexagonal cross-section tubular structure, consisting of 3-4 hinged sections, each section being 1.5m long, 25mm in diameter, and 2mm thick. The transverse auxiliary connecting rod is a hollow circular cross-section tubular structure, with 3-4 rods evenly arranged between every two longitudinal main connecting rods.

3. The hail protection deployable elastic net cover device according to claim 2, characterized in that, The longitudinal main connecting rod and the transverse auxiliary connecting rod are made of aviation aluminum alloy and the surface is anodized. The U-shaped hinge seat is a 304 stainless steel sheet structure with a thickness of 5mm and an opening width of 28mm. After the two ends of the connecting rod are inserted into the opening slot of the hinge seat, they are hinged through by stainless steel pins. Nylon washers are sleeved on both ends of the pins.

4. The hail protection deployable elastic net cover device according to claim 1, characterized in that, The spring locking pin is a cylindrical structure made of 304 stainless steel, with a diameter of 8mm and a length of 35mm. It has a hemispherical buckle head at the end and a spring groove in the middle, with a spring steel spring inside. The longitudinal main connecting rod has a pre-set pin hole with a diameter of 9mm that matches the spring locking pin. When the frame is unfolded to the point where the connecting rod is in a 180° straight line, the pin is automatically inserted into the pin hole under the action of the spring force.

5. The hail protection deployable elastic net cover device according to claim 1, characterized in that, The outer protective mesh is a diamond-shaped mesh of ultra-high molecular weight polyethylene fiber with a pore size of 6mm×6mm; the middle buffer mesh is a wavy elastic mesh of aramid 1414 fiber and silicone coating with a wave crest height of 15mm and a wavelength of 50mm; the inner bonding mesh is a square mesh of polyester elastic yarn with a pore size of 8mm×8mm. The three layers of mesh are of the same size, with the outer protective mesh being slightly larger than the unfolded size of the folding linkage frame.

6. The hail protection deployable elastic net cover device according to claim 5, characterized in that, The outer protective net and the middle buffer net are fixed together by silicone straps with a diameter of 5mm. One strap is placed every 30cm, and the two ends are fused to the net fibers by hot-press vulcanization. The middle buffer net and the inner bonding net are fixed together by wavy silicone strips with a length of 80mm and a crest of 15mm.

7. The hail protection deployable elastic net cover device according to claim 1, characterized in that, The edge reinforcement webbing is PU coated polyester webbing, 25mm wide and 2mm thick, sewn around the perimeter of the mesh, with a connecting hole every 15-20cm.

8. The hail protection deployable elastic net cover device according to claim 1, characterized in that, The drive mechanism includes a push rod and a storage strap; the push rod is a telescopic rod with a stroke of 1.2m and an outer diameter of 30mm. It adopts an aluminum alloy cylinder body + stainless steel telescopic rod, and has a ball joint at the end. The ball joint allows a rotation angle of ±15°. It is fixed to the middle ear plate of the first section of the main connecting rod of the frame by M8 bolts; the storage strap is a nylon webbing with Velcro fasteners.

9. The hail protection deployable elastic net cover device according to claim 8, characterized in that, The push rod can be a manual push rod or an electric push rod, and the electric push rod is equipped with a 12V DC motor.

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