Aluminum alloy aviation case
The modular plug-in aluminum alloy flight case design solves the problems of traditional aluminum alloy flight cases, such as inflexible splicing, low strength, heavy weight, and high cost, achieving the effect of improved strength and reduced weight.
Patent Information
- Application Number
- CN202520217335.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Traditional aluminum alloy flight cases are designed as a single piece, which cannot be flexibly spliced, resulting in low strength, heavy weight, high production costs, and low efficiency.
It adopts a plug-in profile design, uses double-layer panels and modular structure, including side panels, rear modules, door panels, etc., and is connected by riveting and plugging, simplifying the production process.
It improves the overall strength and impact resistance of the flight case, reduces the weight by about 7-10%, lowers production costs, and simplifies the manufacturing process.
Smart Images

Figure CN223736509U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air transport, and in particular to an aluminum alloy flight case. Background Technology
[0002] The air transport industry plays an indispensable role in global trade due to its unique reliability, speed and safety. Although air transport accounts for less than 1% of global trade volume, the goods transported by air are usually high-value-added or time-sensitive goods, and it accounts for about 35% of the world trade value overall.
[0003] The air transport industry has broad development prospects in the future. It is an important mode of modern air transport, especially long-distance transport, characterized by speed and mobility. It is also characterized by its commercial, service-oriented, international, quasi-military, capital-, technology-, and risk-intensive nature, as well as its natural monopoly. Among these, aluminum alloy flight cases are an indispensable and crucial carrier in air transport. They provide functions such as rapid loading and unloading and safety protection for valuable goods, perishable goods, and precision instruments transported by air. Aluminum alloy flight cases are an essential part of the future air transport industry and will inevitably continue to develop towards specialization, diversification, multi-functionality, and technological advancement.
[0004] Aluminum alloy flight cases are a type of vehicle specifically designed for air transport and aircraft protection. They come in various styles, each with different characteristics and functions to suit various occasions in air transport. However, traditional aluminum alloy flight cases are all integral designs that are welded or bolted together, which cannot be flexibly spliced. They also have low strength, heavy weight, high production costs, and low efficiency. Therefore, an aluminum alloy flight case is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides an aluminum alloy flight case, which aims to improve the problems of traditional aluminum alloy flight cases, which are all welded or bolted in one piece, unable to be flexibly spliced, and have low strength, large weight, high production cost and low efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an aluminum alloy flight case, including a rear compartment panel, a rear side beam fixedly connected to the outside of the rear compartment panel, a bottom plate fixedly connected to the bottom of the rear side beam, three adjustable brackets fixedly connected to the front side of the rear compartment panel, two brackets fixedly connected to the front side of the rear compartment panel, and side panel assemblies respectively installed on the left and right sides of the rear compartment panel.
[0007] The side panel assembly includes a side wall beam, the rear side of which is fixedly connected to the outside of the rear side beam. A side panel is fixedly connected inside the side wall beam, and a ventilation opening is fixedly connected inside the side panel. A front door assembly is installed on the front side of the side wall beam, and a top panel assembly is installed between the tops of the two side wall beams. A limit assembly is installed on the inner side of the side panel.
[0008] As a further description of the above technical solution:
[0009] The front door assembly includes a double-layer riveted door panel. The outer side of the double-layer riveted door panel is rotatably connected to the front side of the side wall beam. Two status display panels are fixedly connected to the rear side of the double-layer riveted door panel. A single-layer riveted door panel is rotatably connected to the inner side of the double-layer riveted door panel. Two double-headed pin assemblies are installed on the rear side of the single-layer riveted door panel.
[0010] As a further description of the above technical solution:
[0011] The top plate assembly includes a top plate skin, the bottom of which is fixedly connected to the top of the two side edge beams. A top plate frame assembly is fixedly connected to the bottom of the top plate skin. Four stacking corners are fixedly connected to the inner side of the top plate frame assembly. A liner is fixedly connected to the inner side of the top plate frame assembly. Two hanging rod assemblies are installed at the bottom of the liner. A door stop is fixedly connected to the outside of the top plate frame assembly.
[0012] As a further description of the above technical solution:
[0013] The limiting assembly includes two fixing plates and a limiting plate. The fixing plates are externally fixedly connected to the inner side of the side panel. A guide groove is fixedly connected to the inner side of the fixing plate. Two stops are fixedly connected to the inner wall of the guide groove. Three bearings are rotatably connected between the fixing plates and the inner side of the guide groove. The limiting plate is externally fixedly connected to the inner side of the side panel. A stop is fixedly connected to the inner side of the limiting plate. A partition assembly is installed between the two guide grooves and the two limiting plates at the same height.
[0014] As a further description of the above technical solution:
[0015] The partition assembly includes a shelf, which is slidably connected to the inner wall of the guide groove. The bottom shelf is slidably connected to the inner side of the limiting plate. Four straight guide bars are fixedly connected to the top of the shelf. A hook is fixedly connected to the front side of the shelf. Two anchor slots are opened on the upper side of the shelf. A fixing slot is opened on the top of the shelf. A lock is installed on the top of the shelf. Two buffer block mounting points are fixedly connected to the top of the shelf.
[0016] As a further description of the above technical solution:
[0017] The bottom of the shelf is slidably connected to the top of the adjustable bracket, and the bearing and the shelf abut against each other.
[0018] As a further description of the above technical solution:
[0019] The lower double-headed pin assembly is externally inserted into the inside of the base plate, the outer side of the base plate is fixedly connected to the bottom of the side edge beam, and the bottom of the limiting plate is fixedly connected to the top of the base plate.
[0020] As a further description of the above technical solution:
[0021] The rear side of the top plate skin is fixedly connected to the top of the rear side beam.
[0022] As a further description of the above technical solution:
[0023] The upper double-headed pin assembly is externally inserted into the inside of the top plate skin, the top of the stacking corner is fixedly connected to the bottom of the top plate skin, and the top of the liner is fixedly connected to the bottom of the top plate skin.
[0024] This utility model has the following beneficial effects:
[0025] In this utility model, by replacing the side panel modules, rear module, and door panel modules of the aluminum alloy flight case with plug-in profiles and using double-layer panels instead of single aluminum panels, the overall strength and impact resistance of the modules are greatly increased. Furthermore, through comprehensive improvements to the profile cross-sections of the bottom support module and top panel module, the production process is simplified and production time is reduced. At the same time, while meeting the usage requirements, the overall strength of the aluminum alloy flight case is increased, and the total weight is reduced by approximately 7% to 10%. Attached Figure Description
[0026] Figure 1 This is a three-dimensional schematic diagram of an aluminum alloy flight case proposed in this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the side panel of an aluminum alloy flight case proposed in this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the shelf panel of an aluminum alloy flight case proposed in this utility model;
[0029] Figure 4 This is a structural schematic diagram of a double-layer riveted door panel for an aluminum alloy flight case proposed in this utility model;
[0030] Figure 5 This is a schematic diagram of the structure of a double-headed pin assembly for an aluminum alloy flight case proposed in this utility model;
[0031] Figure 6This is a schematic diagram of the ventilation opening of an aluminum alloy flight case according to the present invention.
[0032] Figure 7 This is a schematic diagram of the structure of an adjustable bracket for an aluminum alloy flight case proposed in this utility model;
[0033] Figure 8 This is a schematic diagram of the top plate frame assembly of an aluminum alloy flight case proposed in this utility model.
[0034] Figure 9 This is a schematic diagram of the structure of a limiting plate for an aluminum alloy flight case proposed in this utility model;
[0035] Figure 10 This is a schematic diagram of the fixing groove for an aluminum alloy flight case proposed in this utility model;
[0036] Figure 11 This is a schematic diagram of the guide groove structure of an aluminum alloy flight case proposed in this utility model.
[0037] Legend:
[0038] 1. Rear panel; 2. Rear side beam; 3. Adjustable bracket; 4. Bracket; 5. Side side beam; 6. Side panel; 7. Ventilation opening; 8. Double-layer riveted door panel; 9. Single-layer riveted door panel; 10. Double-headed pin assembly; 11. Status indicator; 12. Top panel frame assembly; 13. Top panel skin; 14. Stacking corner; 15. Liner; 16. Hanging rod assembly; 17. Door stop; 18. Fixing plate; 19. Guide groove; 20. Stop block one; 21. Bearing; 22. Shelf; 23. Straight guide strip; 24. Hook; 25. Anchor point groove; 26. Fixing groove; 27. Lock; 28. Buffer block mounting point; 29. Limiting plate; 30. Stop block two; 31. Floor plate. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Reference Figure 1 - Figure 11An embodiment of this utility model is provided: an aluminum alloy flight case, including a rear panel 1, a rear side beam 2 fixedly connected to the outside of the rear panel 1, a bottom plate 31 fixedly connected to the bottom of the rear side beam 2, three adjustable brackets 3 fixedly connected to the front side of the rear panel 1, and two brackets 4 fixedly connected to the front side of the rear panel 1. The rear panel 1 is used to protect the interior, the rear side beam 2 is used to fix the entire flight case, the adjustable brackets 3 are used to block the top of the shelf 22, the brackets 4 are used to support the shelf 22, the bottom plate 31 is used to support the entire flight case, and side panel assemblies are respectively installed on the left and right sides of the rear panel 1.
[0041] The side panel assembly includes a side wall beam 5, which is fixedly connected to the rear side of the rear side beam 2. A side wall panel 6 is fixedly connected inside the side wall beam 5, and a ventilation opening 7 is fixedly connected inside the side wall panel 6. The side wall beam 5 facilitates installation, the side wall panel 6 protects the interior, and the ventilation opening 7 allows for ventilation. A front door assembly is installed on the front side of the side wall beam 5, and a top panel assembly is installed between the tops of the two side wall beams 5. A limit assembly is installed on the inner side of the side wall panel 6. The front door assembly includes a double-layer riveted door panel 8, which is rotatably connected to the front side of the side wall beam 5 on the outer side. Two status indicator panels 11 are fixedly connected to the rear side of the double-layer riveted door panel 8, and a single-layer riveted door panel 9 is rotatably connected to the inner side of the double-layer riveted door panel 8. Two double-layer riveted door panels 11 are installed on the rear side of the single-layer riveted door panel 9. The front door assembly includes a head latch group 10, a double-layer riveted door panel 8 for internal protection, and a single-layer riveted door panel 9 for easy opening of the flight case. The double-layer riveted door panel 8 and the single-layer riveted door panel 9 are connected by a hinge assembly for folding. The hinge assembly allows the entire front door assembly to rotate 270 degrees. A status indicator 11 facilitates observation. The top panel assembly includes a top panel skin 13, which is fixedly connected to the top of two side beams 5 at its bottom. A top panel frame assembly 12 is fixedly connected to the bottom of the top panel skin 13. Four stacking corners 14 are fixedly connected to the inner side of the top panel frame assembly 12. A liner 15 is fixedly connected to the inner side of the top panel frame assembly 12. Two hanging rod assemblies 16 are installed at the bottom of the liner 15. A door stop 17 is fixedly connected to the outer side of the top panel frame assembly 12. The top panel 13 is used to support the top panel skin 13, which protects the internal parts. The stacking angle 14 is used to strengthen the overall strength. The liner 15 is used to strengthen the top panel skin 13. The hanging rod assembly 16 is used to block the double-headed pin assembly 10 for fixation. The door stop 17 is used for buffering. The limiting assembly includes two fixing plates 18 and a limiting plate 29. The fixing plates 18 are externally fixedly connected to the inside of the side panel 6. The inside of the fixing plates 18 is fixedly connected to the guide groove 19. The inner wall of the guide groove 19 is fixedly connected to two stops 1 20. Three bearings 21 are rotatably connected between the fixing plates 18 and the inside of the guide groove 19. The outside of the limiting plate 29 is fixedly connected to the inside of the side panel 6. The inside of the limiting plate 29 is fixedly connected to the stop 2 30. The fixing plates 18 are used to fix the guide groove 19. The guide groove 19 is used to... To restrict the movement direction of the partition assembly, a stop block 20 is used to limit the movement distance of the partition assembly, a bearing 21 is used to ensure smooth movement of the partition assembly, a limiting plate 29 is used to limit the movement direction of the partition assembly, and a stop block 30 is used to limit the movement distance of the partition assembly. Partition assemblies are installed between the two guide grooves 19 and the two limiting plates 29 at the same height. Each partition assembly includes a layer plate 22, which is externally slidably connected to the inner wall of the guide groove 19. The bottommost layer plate 22 is externally slidably connected to the inner side of the limiting plate 29. Four straight guide bars 23 are fixedly connected to the top of the layer plate 22, a hook 24 is fixedly connected to the front side of the layer plate 22, two anchor point grooves 25 are opened on the upper side of the layer plate 22, a fixing groove 26 is opened on the top of the layer plate 22, and a lock 27 is installed on the top of the layer plate 22.The top of the shelf 22 is fixedly connected to two buffer block mounting points 28. The shelf 22 is used to support goods. The straight guide bar 23 is used to limit the movement direction of the shelf 22. The hook 24 is used to facilitate pulling the shelf 22. The anchor point groove 25 and the fixing groove 26 are used to facilitate the installation of other modules. The lock 27 is used to fix the shelf 22. The buffer block mounting points 28 are used to facilitate the installation of buffer blocks. The bottom of the shelf 22 is slidably connected to the top of the adjustable bracket 3 to keep the shelf 22 stable. The bearing 21 abuts against the shelf 22 to make the shelf 22 move smoothly. The double-headed pin group 10 on the lower side is externally inserted into... The base plate 31 is fixed inside, and its outer side is fixedly connected to the bottom of the side beam 5 for installation. The bottom of the limiting plate 29 is fixedly connected to the top of the base plate 31 to keep the limiting plate 29 stable. The rear side of the top plate skin 13 is fixedly connected to the top of the rear side beam 2 for installation, forming the entire flight case. The upper double-headed pin assembly 10 is externally inserted into the inside of the top plate skin 13 for fixation. The top of the stacking corner 14 is fixedly connected to the bottom of the top plate skin 13 to keep the stacking corner 14 stable. The top of the liner 15 is fixedly connected to the bottom of the top plate skin 13 to keep the liner 15 stable.
[0042] Working Principle: The aluminum alloy flight case is constructed from a base pallet module, rear module, left side panel module, right side panel module, top module, and door panel module. The overall dimensions are 2600mm*1200mm*2405mm. The internal structure consists of guide channel modules, limiter modules, and partition modules. It utilizes an all-aluminum plug-in structure as its main component. Compared to the original design, the overall strength of each assembly is significantly increased, welding operations are reduced, and the manufacturing process is simplified, thereby lowering production costs. Furthermore, while ensuring strength, rigidity, and usage requirements, the amount of material used is minimized, reducing the overall weight of the case. In addition, the case itself and its internal structure incorporate movement control devices, including movement restrictions for cargo within the case and for the case itself within the aircraft cabin, ensuring cargo stability and significantly increasing cargo safety.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An aluminium alloy aircraft box comprising a rear door (1), characterised in that: The rear compartment plate (1) is externally fixedly connected with a rear side beam (2), the bottom of the rear side beam (2) is fixedly connected with a bottom plate (31), the front side of the rear compartment plate (1) is fixedly connected with three adjustable supports (3), the front side of the rear compartment plate (1) is fixedly connected with two brackets (4), and the left and right sides of the rear compartment plate (1) are respectively provided with a side plate assembly; The side plate assembly comprises a side wall side beam (5), the rear side of the side wall side beam (5) is fixedly connected outside the rear side beam (2), the inside of the side wall side beam (5) is fixedly connected with a side wall compartment plate (6), the inside of the side wall compartment plate (6) is fixedly connected with a ventilation opening (7), the front side of the side wall side beam (5) is provided with a front door assembly, the top of the two side wall side beams (5) is provided with a top plate assembly, and the inside of the side wall compartment plate (6) is provided with a limiting assembly.
2. An aluminum alloy aircraft box as defined in claim 1 wherein: The front door assembly comprises a double-layer riveted door plate (8), the outer side of the double-layer riveted door plate (8) is rotatably connected to the front side of the side wall side beam (5), the rear side of the double-layer riveted door plate (8) is fixedly connected with two state look boards (11), the inner side of the double-layer riveted door plate (8) is rotatably connected with a single-layer riveted door plate (9), and the rear side of the single-layer riveted door plate (9) is provided with two double-headed bolt groups (10).
3. An aluminum alloy aircraft box as defined in claim 2 wherein: The top plate assembly comprises a top plate skin (13), the bottom of the top plate skin (13) is fixedly connected to the top of the two side wall side beams (5), the bottom of the top plate skin (13) is fixedly connected with a top plate framework assembly (12), the inside of the top plate framework assembly (12) is fixedly connected with four stacking corners (14), the inside of the top plate framework assembly (12) is fixedly connected with a lining plate (15), the bottom of the lining plate (15) is provided with two hanging rod group assemblies (16), and the outside of the top plate framework assembly (12) is fixedly connected with a door stop (17).
4. An aluminum alloy aircraft box as defined in claim 3 wherein: The limiting assembly comprises two fixed plates (18) and a limiting plate (29), the outside of the fixed plate (18) is fixedly connected to the inside of the side wall compartment plate (6), the inside of the fixed plate (18) is fixedly connected with a guide groove (19), the inner wall of the guide groove (19) is fixedly connected with two stop blocks (20), the inside of the fixed plate (18) and the guide groove (19) is rotatably connected with three bearings (21), the outside of the limiting plate (29) is fixedly connected to the inside of the side wall compartment plate (6), the inside of the limiting plate (29) is fixedly connected with a stop block (30), and the same height between the two guide grooves (19) and the two limiting plates (29) is provided with a partition plate assembly.
5. An aluminum alloy aircraft box as defined in claim 4 wherein: The partition assembly includes a layer plate (22), the layer plate (22) is externally and slidably connected to the inner wall of the guide groove (19), the bottom layer plate (22) is externally and slidably connected to the inner side of the limiting plate (29), four straight guide bars (23) are fixedly connected to the top of the layer plate (22), a hook (24) is fixedly connected to the front side of the layer plate (22), two anchor point grooves (25) are formed in the upper side of the layer plate (22), a fixing groove (26) is formed in the top of the layer plate (22), a lock (27) is installed on the top of the layer plate (22), and two buffer block mounting points (28) are fixedly connected to the top of the layer plate (22).
6. An aluminum alloy aircraft box as defined in claim 5 wherein: The layer plate (22) is slidably connected to the bottom of the adjustable support (3), and the bearing (21) and the layer plate (22) are in abutment.
7. An aluminum alloy aircraft box as defined in claim 4 wherein: The bottom of the double-headed bolt group (10) is externally inserted into the inside of the bottom plate (31), the outside of the bottom plate (31) is fixedly connected to the bottom of the side wall boundary beam (5), and the bottom of the limiting plate (29) is fixedly connected to the top of the bottom plate (31).
8. An aluminum alloy aircraft box as defined in claim 3 wherein: The rear side of the top plate skin (13) is fixedly connected to the top of the rear boundary beam (2).
9. An aluminum alloy aircraft box as defined in claim 5 wherein: The top of the double-headed bolt group (10) is externally inserted into the inside of the top plate skin (13), the top of the stacking corner (14) is fixedly connected to the bottom of the top plate skin (13), and the top of the lining plate (15) is fixedly connected to the bottom of the top plate skin (13).