Aircraft hail protection blanket storage and transport vehicle

Abstract

The utility model belongs to but is not limited to the field of air transportation technology, especially to a kind of aircraft hailproof cover storage and transport vehicle, adopt modular frame structure, main body is made of high-strength metal frame, size is height 2070 millimeter, width 3940 millimeter, top covers detachable hailproof cover, frame is divided into three layers: top ring structure: located at the top of frame, for fixing cover edge, enhance wind stability;Force to rolling brake system: integrated in frame both sides, through universal wheel brake device (quantity x 4) realize multidirectional locking;Support foot cup: distribute in frame bottom, provide stable support and adapt ground traction or hoist transfer.The storage and transport vehicle realizes the full-process efficient operation of aircraft cover storage, transfer and protection by modular structure, dual-mode transportation system and intelligent control, and has safety and environmental adaptability, and can be extended to be applied in multi-field special transportation demand.

Description

Technical Field

[0001] This utility model belongs to, but is not limited to, the field of aviation transportation technology, and particularly relates to an aircraft hail-proof cloth-covered storage and transportation vehicle. Background Technology

[0002] When aircraft are on missions or stationary, they may encounter hail. To prevent the aircraft surface from being directly impacted by hail and causing irreversible damage or permanent performance degradation, the aircraft surface needs to be protected.

[0003] Existing aircraft protection equipment often employs fixed anti-hail shelters, which are fixed protective canopies supported by large metal frames and installed above the apron, maintenance area, or temporary parking area to shield aircraft and reduce damage to their surfaces caused by natural disasters such as hail, strong winds, and snowfall. Some facilities utilize semi-permanent steel structures equipped with retractable roofs to enhance flexibility.

[0004] Analysis of existing problems:

[0005] First, fixed protective canopies lack mobility and cannot be flexibly deployed according to actual parking needs, limiting their use in scenarios with tight mission schedules or unconventional parking conditions. Second, the canopy construction requires a large area and demanding infrastructure, making it unsuitable for rapid deployment in temporary or complex terrain environments (such as secondary airports or field runways). Third, retractable canopies often employ complex track and support systems, leading to complex maintenance, high failure rates, and the risk of structural instability due to uneven stress under extreme weather conditions. Furthermore, existing systems generally lack flexible fabric covering mechanisms that precisely adapt to the aircraft's shape, resulting in numerous blind spots, insufficient localized impact resistance, and an inability to effectively withstand moderate to high-intensity hail impacts, creating blind spots and potential failure hazards. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides an aircraft-mounted hail-proof tarpaulin storage and transportation vehicle.

[0007] This utility model is implemented as follows: an aircraft hail protection tarpaulin storage and transportation vehicle adopts a modular frame structure, with the main body composed of a high-strength metal frame, measuring 2070 mm in height and 3940 mm in width. The top is covered with a removable hail protection tarpaulin, and the frame consists of three layers.

[0008] Top ring structure: Located at the top of the frame, it is used to secure the edge of the fabric cover and enhance wind resistance stability;

[0009] Force-directed rolling braking system: integrated on both sides of the frame, it achieves multi-directional locking through universal wheel braking devices (number × 4);

[0010] Support feet: Located at the bottom of the frame, they provide stable support and are suitable for ground traction or hoisting and transportation.

[0011] Furthermore, the steering tractor is located at the front of the chassis, supports manual or electric towing, has 360° steering capability, and is suitable for complex paths in warehouses and helipads.

[0012] Furthermore, the omnidirectional wheel braking system is equipped with four sets of high-friction braking modules, which can quickly lock the wheels and prevent displacement during the loading and unloading of the tarpaulin.

[0013] Furthermore, the hail protection tarpaulin is made of tear-resistant and low-temperature resistant materials and is fixed to the frame by a top ring buckle, covering the critical surfaces of the aircraft.

[0014] Furthermore, the hailproof fabric has a multi-layered composite structure, with an outer layer that is puncture-resistant and an inner layer that prevents condensation, which can withstand the impact of hailstones with a diameter of ≤5 cm.

[0015] Furthermore, multi-dimensional braking is achieved through a hydraulic locking mechanism, with a braking response time of less than 1 second, preventing the vehicle from slipping.

[0016] Furthermore, the frame has reinforcing ribs at key nodes when covered with hail-proof cloth.

[0017] Based on the above technical solutions and the technical problems solved, the advantages and positive effects of the technical solution to be protected by this utility model are as follows:

[0018] This utility model adopts a modular framework system, enabling rapid adaptation and replacement of hail protection fabric for different aircraft models through standardized size design and quick-connect components. The top ring structure, force-directed rolling braking system, and support feet form a three-layer layout with multiple mechanical support systems, allowing for flexible assembly and disassembly according to operational needs. The inference chain support: modularity reduces maintenance complexity, shortens repair response time, and enhances the system's adaptability and reconfigurability under different environments and operational loads, meeting the actual needs of airport ground support equipment for high efficiency and flexibility.

[0019] The system utilizes a steering traction rod and a omnidirectional rolling brake system to create a dual-mode traction mechanism that combines manual and electric traction. The 360° steering device, combined with a high-friction braking module, enables precise movement and rapid positioning in complex terrain environments. The reasoning chain support design addresses both high-speed transport and precise positioning scenarios, effectively solving the problems of difficult scheduling and unstable parking for traditional large equipment in confined spaces such as depots and aprons, thus improving the overall mobility and safety redundancy of ground support operations.

[0020] The tarpaulin is made of high-strength tear-resistant fibers and low-temperature resistant composite materials, achieving dual performance of puncture resistance on the outer layer and condensation prevention on the inner layer through a layered structure. Combined with a top ring buckle fixing system, it ensures the tarpaulin remains taut and provides complete coverage under extreme weather conditions such as strong winds, low temperatures, and hail. The inverse chain support: the optimized coupling of material design and installation structure significantly improves the system's impact resistance and tarpaulin lifespan, meeting the continuous operation requirements of airports in high-latitude regions and winter monsoon environments.

[0021] The locking mechanism completes the locking action within one second through rapid-response toughness units, combined with a network of reinforcing ribs at key nodes of the frame, to construct a high-rigidity protective frame. The inference chain support, with its dual locking and reinforcement strategies working in tandem, effectively suppresses displacement and deformation under ground disturbances, wind load impacts, or sudden vibrations, greatly improving static protection stability and disaster resistance, providing a reliable and continuous safety system for aircraft during parking. Attached Figure Description

[0022] Figure 1 This is a perspective view of the aircraft hail-proof cloth-covered storage and transportation vehicle provided in this embodiment of the utility model;

[0023] Figure 2 This is a front view of the aircraft hailproof tarpaulin storage and transportation vehicle provided in this embodiment of the utility model;

[0024] Figure 3 This is a rear view of the aircraft hailproof tarpaulin storage and transportation vehicle provided in this embodiment of the utility model;

[0025] Figure 4 This is a left view of the aircraft hailproof tarpaulin storage and transportation vehicle provided in this embodiment of the utility model;

[0026] Figure 5 This is a right view of the aircraft hail-proof cloth storage and transportation vehicle provided in this embodiment of the utility model;

[0027] Figure 6 This is a top view of the aircraft hail-proof cloth storage and transportation vehicle provided in this embodiment of the utility model;

[0028] Figure 7 This is a bottom view of the aircraft hailproof tarpaulin-covered storage and transportation vehicle provided in this embodiment of the utility model;

[0029] Figure 8 This is a schematic diagram of the chassis of the aircraft hail-proof cloth-covered storage and transportation vehicle provided in this embodiment of the utility model;

[0030] Figure 9 This is a perspective view of the frame of the aircraft hail-proof cloth-covered storage and transportation vehicle provided in this embodiment of the utility model;

[0031] Figure 10This is a structural diagram of the aircraft hail-proof cloth-covered storage and transportation vehicle provided in this embodiment of the utility model;

[0032] Figure 11 This is a chassis diagram provided in an embodiment of the present utility model;

[0033] Figure 12 This is a diagram of the load and fixture provided in an embodiment of the present invention;

[0034] Figure 13 This is a grid information diagram provided in an embodiment of the present invention;

[0035] Figure 14 This is a diagram showing the calculation results provided in an embodiment of this utility model. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this utility model.

[0037] This invention employs a modular frame structure, with the main body composed of a high-strength metal frame. A three-layer spatial support system is formed through a top ring structure, the body frame, and supporting feet. During installation, the fabric is secured with clips around the perimeter of the top ring structure, maintaining tension and preventing loosening or deformation due to wind. The vehicle dimensions (2070 mm in height, 3940 mm in width) are optimized according to aircraft size standards, ensuring that the fabric effectively covers the nose, wings, and upper fuselage when unfolded, achieving comprehensive hail protection.

[0038] The steering drawbar is fixedly mounted at the front of the chassis and provides traction through manual push-pull or electric towing. This drawbar incorporates a high-performance steering mechanism with 360° rotation, allowing the vehicle to flexibly adapt to complex ground environments such as helipads and hangars. The towing vehicle is connected to the main chassis via a quick-connect pin mechanism, facilitating daily operation while ensuring stability and controllability of the vehicle's movement during turns.

[0039] The storage and transport vehicle is equipped with omnidirectional wheels on both sides, each wheel integrating four sets of high-friction braking modules. Under normal conditions, these modules are mechanically locked to prevent free rolling. The locking mechanism enables multi-dimensional active braking, applying rapid pressure to the brake pads by stepping on the brake pedal to achieve a braking response in less than one second. The hydraulic circuit is designed with a pressure relief protection unit to ensure vehicle stability on slopes, when tilted, or in strong winds, preventing slippage caused by uneven ground or unexpected factors.

[0040] The hail protection tarpaulin is made of multi-layer composite materials. The outer layer is made of high-strength, puncture-resistant fiber, capable of withstanding the impact of hailstones up to 5 centimeters in diameter. The inner layer is designed to prevent condensation, thus preventing moisture buildup on the inner surface of the tarpaulin due to temperature differences. The tarpaulin is connected to the vehicle frame via a top ring-shaped buckle system. During installation, a pre-tensioning device stretches the tarpaulin to the specified tension, ensuring even coverage and no wrinkles, thus enhancing overall protective effectiveness and lifespan.

[0041] Support feet are evenly distributed around the bottom of the chassis and are designed with interfaces compatible with standard ground tow bar and lifting ring. In a stationary state, the support feet are locked in place by a self-locking structure, improving the overall static stability of the vehicle. When relocation is required, ground tow bars or lifting slings can be directly connected to the support feet to complete horizontal or vertical lifting, adapting to the rapid deployment and retrieval requirements under different operating conditions in airports and maintenance areas.

[0042] With hail protection tarpaulin covering in place, key nodes of the chassis are reinforced with stiffeners to cope with external impact and wind load variations. These stiffeners are connected to the main beams and columns via welding or bolting, enhancing the local stiffness and overall torsional resistance of the chassis. This design effectively prevents chassis deformation or damage under extreme weather conditions (such as strong winds, heavy rain, and hail), ensuring the continued integrity of the aircraft's protection system.

[0043] I. Overall Structural Design

[0044] The cloth-covered storage vehicle adopts a modular frame structure, with the main body made of high-strength metal frame. Its dimensions are 2070 mm in height and 3940 mm in width (as indicated in the main view), and the top is covered with a removable hail-proof cloth.

[0045] The frame consists of three layers:

[0046] 1. Top ring structure: Located at the top of the frame, it is used to secure the edge of the fabric cover and enhance wind resistance stability;

[0047] 2. Force-directed rolling braking system: integrated on both sides of the frame, achieving multi-directional locking through universal wheel braking devices (number × 4);

[0048] 3. Support feet (3 in total): Located at the bottom of the frame, they provide stable support and are suitable for ground traction or hoisting and transportation.

[0049] The 3D perspective view shows that the frame is compatible with both fabric covering (protected state) and exposed structure (maintenance state), and the component layout takes into account both lightweight and load-bearing requirements.

[0050] II. Core Functional Components

[0051] 1. Steering drawbar: Integrated into the front of the chassis, it supports manual or electric towing, has 360° steering capability, and is suitable for complex paths in warehouses and helipads;

[0052] 2. Universal wheel braking system: Equipped with 4 sets of high-friction braking modules, which can quickly lock the wheels and prevent accidental displacement during transportation;

[0053] 3. Modular fabric: Made of tear-resistant and low-temperature resistant materials, it is fixed to the frame by top ring buckles, covering critical aircraft surfaces (such as wings and engine nacelles).

[0054] The side of the frame is marked "Pinhuan ×4", which suggests a standardized component design that facilitates quick replacement and maintenance.

[0055] III. Positioning and Mobility Systems

[0056] The vehicle supports two positioning modes:

[0057] 1. Tracking and positioning: Precise parking is achieved by using preset path markers (such as magnetic strips or QR codes) within the warehouse, combined with the tractor navigation system;

[0058] 2. Emergency positioning on the helipad: It can be quickly fixed to the ground by using support feet and anchor points, adapting to outdoor helipad scenarios without fixed tracks.

[0059] When moving, the steering tractor can switch to traction mode (connected to external power equipment) or self-propelled mode to meet the long-distance transfer needs from the warehouse to the helipad.

[0060] IV. Protection and Safety Design

[0061] 1. Hailproof tarpaulin: Multi-layer composite structure, with an outer puncture-proof layer and an inner condensation-proof layer, capable of withstanding the impact of hailstones with a diameter of ≤5 cm;

[0062] 2. Force-directed rolling braking: Multi-dimensional braking is achieved through a hydraulic locking mechanism, with a braking response time of less than 1 second, preventing vehicle slippage;

[0063] 3. Self-locking function of support feet: After landing, manual rotation applies pressure, and the pressure on the contact surface is evenly distributed to avoid local overload deformation.

[0064] The 3D perspective view shows that, under the tarpaulin covering, key nodes of the frame (such as the connection between the steering and tractor units) are reinforced with ribs to improve wind load resistance.

[0065] V. Dual-mode transportation system

[0066] 1. Ground traction mode: Through the linkage between the tractor and the warehouse / hangar transportation system, batch tarpaulin storage vehicles can be convoyed and scheduled;

[0067] 2. Lifting and transfer mode: The top of the vehicle frame is reserved with lifting holes to meet the rapid loading and unloading needs of helicopters or cargo planes and to meet the rapid deployment of missions in different locations.

[0068] The "random transfer by air" function is achieved through modular fixed brackets, and the tarpaulin and the vehicle frame can be hoisted as a whole without disassembly.

[0069] VI. Safety Redundancy and Emergency Mechanism

[0070] 1. Dual braking protection: The omnidirectional wheel brake and the force-directed rolling brake serve as backups for each other; if either system fails, the other system is automatically activated.

[0071] 2. Emergency release of the tarpaulin: In case of strong winds or fire, the quick-release pull ring on the side of the frame can be used to manually release the tarpaulin to avoid collateral damage.

[0072] VII. Application Scenario Expansion

[0073] 1. Multi-model compatibility: By adjusting the height of the support feet (range ±300 mm), it is compatible with the protection requirements of different aircraft models (such as passenger planes and drones);

[0074] 2. Multi-functional expansion: The chassis can be equipped with a tool compartment, de-icing agent spraying module, etc., expanding it into a comprehensive protection-maintenance integrated equipment;

[0075] Static stress analysis of the crane frame: The frame is as follows Figure 11 The sample shown is formed by welding Q235 profile sheet metal with a yield strength of 220 MPa. The stress analysis is based on four points fixed to the side of the hoisting installation. The overall stress includes its own weight and the weight of the 48 workstations at the top, totaling a load of 500 kg.

[0076] Example attributes

[0077]

[0078]

[0079] unit

[0080]

[0081] Load and clamp Figure 12 .

[0082] Grid Information

[0083]

[0084] Grid Information Figure 13 Working together.

[0085] reaction force

[0086] Select set unit Total X Total Y Total Z combined efforts The whole model N 0.535645 0.473145 9,319.77 9,319.77

[0087] reaction torque

[0088]

[0089] Free entity force

[0090] Select set unit Total X Total Y Total Z combined efforts The whole model N -112.497 58.3814 2,765.85 2,768.75

[0091] Free geometric moment

[0092]

[0093] Example Results Figure 14 Based on the above stress analysis, the following conclusions can be drawn: 1. Except for single-point stress concentration (which can be ignored), all other stresses are within 50 MPa. The yield strength of the frame material is 220 MPa, that is, the safety factor is 220 / 50 = 4.4 times, which meets the design requirements; 2. The maximum deformation is 1.227 mm, which meets the design requirements.

[0094] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0095] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any modifications, equivalent substitutions and improvements made by those skilled in the art within the technical scope disclosed in this utility model, and within the spirit and principles of this utility model, should be included within the protection scope of this utility model.

Claims

1. A hail-proof tarpaulin-covered storage and transportation vehicle for aircraft, characterized in that, The vehicle adopts a modular frame structure, with the main body constructed from a high-strength metal frame. Its dimensions are 2070 mm in height and 3940 mm in width. The top is covered with a removable hail-proof tarpaulin. The frame consists of three layers. Top ring structure: Located at the top of the frame, it is used to secure the edge of the fabric cover and enhance wind resistance stability; Force-directed rolling braking system: integrated on both sides of the frame, it achieves multi-directional locking through the universal wheel braking device; Support feet: Located at the bottom of the frame, they provide stable support and are suitable for ground traction or hoisting and transportation.

2. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, The steering tractor is integrated at the front of the chassis, supports manual or electric drive, has 360° steering capability, and is suitable for complex paths in warehouses and helipads.

3. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, The swivel wheel braking system is equipped with four sets of high-friction braking modules, which can quickly lock the wheels and prevent accidental displacement during transportation.

4. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, The hail protection tarpaulin is made of tear-resistant and low-temperature resistant materials and is fixed to the frame by a top ring buckle, covering the critical surfaces of the aircraft.

5. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, The hailproof fabric has a multi-layered composite structure, with an outer puncture-resistant layer and an inner condensation-resistant layer, which can withstand the impact of hailstones with a diameter of ≤5 cm.

6. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, Multi-dimensional braking is achieved through a hydraulic locking mechanism, with a braking response time of less than 1 second, preventing the vehicle from slipping.

7. The aircraft hail-proof tarpaulin-covered storage and transportation vehicle as described in claim 1, characterized in that, The frame has reinforcing ribs at key nodes when covered with hail-proof cloth.

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