Supporting device for aircraft maintenance

By designing aircraft maintenance support devices with various mechanical structures and safety measures, the problems of uneven support force distribution and unstable lifting were solved, achieving precise altitude adjustment and stability of the work platform, thereby improving the safety and operational reliability of aircraft maintenance.

CN224118715UActive Publication Date: 2026-04-14江西精勤科技有限公司
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江西精勤科技有限公司
Filing Date
2025-05-30
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing aircraft maintenance support devices cannot flexibly adjust the support position according to the structural characteristics of different parts of the aircraft, resulting in uneven distribution of support force and a lack of effective stabilizing structure during takeoff and landing, which affects operational safety.

Method used

Design a support device including a moving platform, telescopic rod, lifting plate, hinge rod, sliding rod, dual-axis motor, lead screw, and sliding plate. The dual-axis motor drives the lead screw to rotate, achieving precise adjustment of the lifting plate. A guide rail and hydraulic cylinder are set on the top of the moving platform, equipped with a slider and support plate to provide flexible adjustment of support force. A magnetic block and pedal adsorption mechanism is adopted to prevent foreign objects from entering the critical component area.

Benefits of technology

It enables efficient and precise adjustment of the work platform height, enhances the stability and flexibility of the work platform, ensures absolute stability and safety during aircraft maintenance, and reduces maintenance costs and failure risks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224118715U_ABST
    Figure CN224118715U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of aircraft maintenance equipment, in particular to a supporting device for aircraft maintenance. A supporting device for aircraft maintenance comprises a moving table, a lifting plate, a hinge rod, a sliding rod, a sliding plate, a double-shaft motor and the like, a mounting groove is formed in the middle of the top of the moving table, telescopic rods are symmetrically mounted at the inner bottom of the mounting groove of the moving table front and back, and the lifting plate is fixedly connected between the extending ends of the telescopic rods; the bottom of the lifting plate is connected with the movable table through a plurality of hinged rods which are hinged to one another, sliding rods are rotationally connected to the ends of the hinged rods at the two ends correspondingly, and sliding rails for the sliding rods to slide are arranged on the front sides and the rear sides of the mounting grooves of the lifting plate and the movable table correspondingly. The double-shaft motor drives the lead screw to rotate, the sliding plate is promoted to drive the hinge rod structure to stretch or contract, the lifting plate can ascend or descend stably, the effect of efficiently and accurately adjusting the height of the work platform is achieved, and therefore the work platform can meet different maintenance requirements.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of aircraft maintenance equipment technology, and in particular to a support device for aircraft maintenance. Background Technology

[0002] In aircraft maintenance, support systems, as critical auxiliary equipment, are widely used in operations such as landing gear replacement, fuselage inspection, and underbody maintenance. Their main function is to provide stable and reliable support for the aircraft, ensuring maintenance personnel can operate in a safe environment. Currently, most common support systems are fixed or simple lifting structures, typically consisting of a base, support arms, and a lifting mechanism. While these can meet basic support requirements to a certain extent, they still have many shortcomings in practical use.

[0003] With the diversification of aircraft models and the increasing complexity of maintenance environments, traditional support devices have gradually revealed certain problems in terms of flexibility, stability, and safety. For example, some devices cannot flexibly adjust their support positions according to the structural characteristics of different parts of the aircraft, resulting in uneven distribution of support forces; some equipment lacks an effective stabilizing structure during takeoff and landing, making it prone to swaying or shifting, which affects operational safety.

[0004] Therefore, it is necessary to design a support device for aircraft maintenance to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of some devices that cannot flexibly adjust the support position according to the structural characteristics of different parts of the aircraft, resulting in uneven distribution of support force, this utility model provides a support device for aircraft maintenance.

[0006] The technical solution of this utility model is as follows: a support device for aircraft maintenance, comprising a movable platform, telescopic rods, a lifting plate, hinged rods, sliding rods, a dual-axis motor, lead screws, and sliding plates. A mounting groove is provided in the center of the top of the movable platform. Telescopic rods are symmetrically installed at the bottom of the mounting groove, and a lifting plate is fixedly connected between the extended ends of the telescopic rods. The bottom of the lifting plate and the movable platform are connected by multiple hinged rods. Sliding rods are rotatably connected to the ends of the hinged rods at both ends. Slide rails for sliding rods are provided on both the front and rear sides of the mounting groove of the lifting plate and the movable platform. The upper sliding rod is slidably connected to the slide rail of the lifting plate, and the lower sliding rod is slidably connected to the slide rail of the mounting groove. A dual-axis motor is installed in the center of the bottom of the mounting groove. Lead screws are fixedly connected to the output shafts on both sides of the dual-axis motor, and sliding plates are threaded onto the lead screws. The sliding plates are fixedly connected to the lower sliding rods.

[0007] Furthermore, it also includes a guardrail, with a guardrail installed at the top edge of the lifting platform.

[0008] Furthermore, it also includes guide rails, sliders, hydraulic cylinders, and support plates. Guide rails are installed on both the front and rear sides of the top of the moving platform. Two sliders are slidably connected on each guide rail. A hydraulic cylinder is installed on the top of each slider. A support plate is fixedly connected between the tops of the hydraulic cylinders on the left and right sides.

[0009] Furthermore, it also includes pedals, sliding blocks, and guardrails. Multiple pedals are connected to both sides of the moving platform. Sliding blocks are fixedly connected to the lower outer side of each pedal. Limiting grooves are opened on the inner side of each pedal. Adjacent pedals are slidably connected through sliding blocks and limiting grooves. Guardrails are fixedly connected to both the front and rear sides of each pedal.

[0010] Furthermore, it also includes magnetic blocks, with the bottom of the pedal made of iron and magnetic blocks installed on both the left and right sides of the top of the moving platform.

[0011] Furthermore, it also includes a protective shell and a folding shell. The protective shell is fixedly connected to the outer side of the slide rails on the front and rear sides of the lifting plate, and a folding shell is provided between the lifting plate and the moving platform.

[0012] The beneficial effects of this utility model are as follows: 1. This utility model drives the lead screw to rotate through a dual-axis motor, which causes the sliding plate to extend or retract the hinge rod structure, so that the lifting plate can rise or fall smoothly, achieving the effect of efficient and precise adjustment of the height of the work platform, thereby adapting to different maintenance needs.

[0013] 2. This utility model, by setting guide rails on the front and rear sides of the top of the mobile platform and equipping it with sliding sliders and hydraulic cylinders, enables the support plate to flexibly adjust its position and provide uniform and symmetrical support force, thereby enhancing the stability and flexibility of the work platform and ensuring the absolute stability and safety of the aircraft during maintenance.

[0014] 3. This utility model improves the safety of equipment operation and reduces maintenance costs by designing a magnetic block and a bottom adsorption mechanism for the pedal, as well as a protective shell and a folding shell to prevent foreign objects from entering the critical moving parts area, thus ensuring the reliable operation of the device in various working environments. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the mobile platform, lifting plate, and guardrail of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the pedal, sliding block, and limiting groove of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the guardrail, hinge rod, and sliding rod of this utility model.

[0019] Figure 5 This is a three-dimensional structural diagram of the sliding plate, dual-axis motor, and lead screw of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Moving platform; 2. Lifting plate; 3. Guardrail 1; 4. Hinge rod; 5. Sliding rod; 6. Sliding plate; 7. Dual-axis motor; 8. Lead screw; 9. Guide rail; 10. Slider; 11. Hydraulic cylinder; 12. Support plate; 13. Pedal; 14. Sliding block; 15. Limiting groove; 16. Guardrail 2; 17. Magnetic block; 18. Protective shell; 19. Folding shell; 20. Telescopic rod. Detailed Implementation

[0021] Example: A support device for aircraft maintenance, such as Figures 1-5 As shown, the system includes a movable platform 1, telescopic rods 20, a lifting plate 2, hinged rods 4, sliding rods 5, a dual-axis motor 7, a lead screw 8, and a sliding plate 6. The movable platform 1 has a mounting groove in the center of its top. Telescopic rods 20 are symmetrically installed at the bottom of the mounting groove, front and back. The extended ends of the telescopic rods 20 are fixedly connected to the lifting plate 2. The bottom of the lifting plate 2 and the movable platform 1 are connected by multiple hinged rods 4, forming a retractable support structure. The ends of the hinged rods 4 at both ends are rotatably connected to the sliding rods 5, the lifting plate 2, and the movable platform 6, respectively. The mounting slot of platform 1 has slide rails on both the front and rear sides for sliding rod 5 to slide. The upper sliding rod 5 is slidably connected to the slide rail of lifting plate 2, and the lower sliding rod 5 is slidably connected to the slide rail of the mounting slot. The sliding rod 5 is slidably engaged with the slide rails on lifting plate 2 and moving platform 1 respectively, thereby guiding lifting plate 2 to rise and fall smoothly. A dual-axis motor 7 is installed in the middle of the bottom of the mounting slot. The output shafts on both sides of the dual-axis motor 7 are connected to lead screws 8 by welding. Sliding plates 6 are threadedly connected to the lead screws 8. The sliding plates 6 are bolted to the lower sliding rod 5.

[0022] When this device is needed, move it to the work area, and the operator can then begin operation. First, start the dual-axis motor 7 to drive the lead screws 8 on both sides to rotate. The sliding plate 6 moves linearly along the lead screws 8, and the sliding plate 6 drives the sliding rod 5 to slide in the slide rails on both sides of the mounting slot, thereby pushing the hinge rod 4 structure to extend or retract. The telescopic rod 20 also extends or retracts accordingly, so that the lifting plate 2 rises or falls smoothly, thus completing the height adjustment of the lifting plate 2. The mutual hinge between the hinge rods 4 ensures the smoothness and stability of the lifting action.

[0023] like Figure 2 and Figure 3As shown, it also includes guide rails 9, sliders 10, hydraulic cylinders 11 and support plates 12. Guide rails 9 are installed on the front and rear sides of the top of the moving platform 1. Two sliders 10 are slidably connected on each guide rail 9. Hydraulic cylinders 11 are installed on the top of each slider 10. Support plates 12 are connected between the tops of the hydraulic cylinders 11 on the left and right sides by bolts to help stabilize the working platform.

[0024] To further enhance the stability and flexibility of the work platform, guide rails 9 are installed on the front and rear sides of the top of the mobile platform 1, and two sliding sliders 10 are equipped on each guide rail 9. A hydraulic cylinder 11 is mounted on the top of each slider 10, and a support plate 12 is connected between the tops of the hydraulic cylinders 11 on both sides. The support plate 12 is used to support key parts of the aircraft, ensuring the aircraft's stability during maintenance. The presence of the guide rails 9 allows the support plate 12 to be flexibly adjusted according to actual needs, ensuring a uniform and symmetrical distribution of support force and providing optimal support for the aircraft. When the height of the support plate 12 needs to be adjusted to adapt to different maintenance requirements, this can be done by adjusting the height of the hydraulic cylinders 11. This not only provides additional support force but also allows for flexible adjustment of the support position according to actual needs, ensuring absolute stability of the aircraft during maintenance.

[0025] like Figures 1-4 As shown, it also includes pedals 13, sliding blocks 14, guardrail 1 3, guardrail 2 16, magnetic blocks 17, protective shells 18, and folding shells 19. Multiple pedals 13 are connected to both sides of the moving platform 1. Sliding blocks 14 are bolted to the lower outer sides of each pedal 13. Limit grooves 15 are formed on the inner sides of each pedal 13. Adjacent pedals 13 are slidably connected via sliding blocks 14 and limit grooves 15. Guardrail 1 3 is provided at the top edge of the lifting plate 2. Guardrail 2 16 is bolted to both the front and rear sides of each pedal 13 to ensure safety. For operator safety, the bottom of the pedal 13 is made of iron. Magnetic blocks 17 are installed on both the left and right sides of the top of the moving platform 1. When the lifting plate 2 is not fully raised, the magnetic blocks 17 are attracted to the bottom of the pedal 13, keeping the pedal 13 on the ground stable and preventing accidental operation. Protective shells 18 are bolted to the outer sides of the slide rails on the front and rear sides of the lifting plate 2 to prevent foreign objects from entering and ensure the smooth operation of the sliding rod 5. A folding shell 19 is provided between the lifting plate 2 and the moving platform 1 to close the area of ​​the hinge rod 4 and prevent sand and gravel from falling in and affecting the movement of the mechanism.

[0026] In addition, to facilitate operators getting on and off the work platform, when the lifting plate 2 is raised, the pedals 13 on both sides slide up in sequence. The sliding block 14 on the lower outer side of each pedal 13 is slidably connected to the corresponding limiting groove 15 to form a stepped structure that can be unfolded or retracted, which is stable and will not shake at will, providing a safe passage for subsequent operations. This design is not only convenient for storage, but also improves the overall space utilization.

[0027] Furthermore, considering operator safety, a guardrail 3 is provided at the top edge of the lifting platform 2, and guardrails 16 are also provided on the front and rear sides of the pedal 13, providing necessary protective measures for the operator. Specifically, when the lifting platform 2 is not fully raised, the magnetic block 17 adheres to the bottom of the pedal 13, keeping the pedal 13 stable on the ground, preventing unnecessary movement, and ensuring that the pedal 13 remains undisturbed and stable in the air. Simultaneously, the design of the protective shell 18 and the folding shell 19 effectively prevents foreign objects such as sand and gravel from entering the critical moving parts area, ensuring smooth operation of the sliding rod 5 and the hinge rod 4, and reducing maintenance costs and the risk of failure. Overall, this support system, through precise mechanical design and reasonable safety measures, achieves efficient and safe maintenance support for the aircraft.

Claims

1. A support device for aircraft maintenance, characterized in that: The system includes a moving platform (1), telescopic rods (20), a lifting plate (2), hinge rods (4), sliding rods (5), a dual-axis motor (7), a lead screw (8), and a sliding plate (6). The moving platform (1) has a mounting groove in the middle of its top. Telescopic rods (20) are symmetrically installed at the bottom of the mounting groove, front and back. The lifting plate (2) is fixedly connected between the extended ends of the telescopic rods (20). The bottom of the lifting plate (2) and the moving platform (1) are connected by multiple hinge rods (4) that are hinged to each other. The ends of the hinge rods (4) at both ends... The mounting slots of the sliding rod (5), the lifting plate (2), and the moving platform (1) are rotatably connected to each other. Slide rails are provided on both the front and rear sides for the sliding rod (5) to slide. The upper sliding rod (5) is slidably connected to the slide rail of the lifting plate (2), and the lower sliding rod (5) is slidably connected to the slide rail of the mounting slot. A dual-axis motor (7) is installed in the middle of the bottom of the mounting slot. A lead screw (8) is fixedly connected to the output shafts on both sides of the dual-axis motor (7). A sliding plate (6) is threadedly connected to the lead screw (8). The sliding plate (6) is fixedly connected to the lower sliding rod (5).

2. The support device for aircraft maintenance according to claim 1, characterized in that: It also includes a guardrail 1 (3), and the top edge of the lifting plate (2) is provided with a guardrail 1 (3).

3. The support device for aircraft maintenance according to claim 2, characterized in that: It also includes guide rails (9), sliders (10), hydraulic cylinders (11) and support plates (12). Guide rails (9) are installed on the front and rear sides of the top of the moving platform (1). Two sliders (10) are slidably connected on each guide rail (9). Hydraulic cylinders (11) are installed on the top of each slider (10). Support plates (12) are fixedly connected between the tops of the hydraulic cylinders (11) on the left and right sides.

4. The support device for aircraft maintenance according to claim 3, characterized in that: It also includes pedals (13), sliding blocks (14) and guardrails (16). Multiple pedals (13) are connected to both sides of the moving platform (1). Sliding blocks (14) are fixedly connected to the lower outer side of each pedal (13). Limiting grooves (15) are opened on the inner side of each pedal (13). Adjacent pedals (13) are slidably connected through sliding blocks (14) and limiting grooves (15). Guardrails (16) are fixedly connected to the front and rear sides of each pedal (13).

5. A support device for aircraft maintenance according to claim 4, characterized in that: It also includes a magnetic block (17), the bottom of the pedal (13) is made of iron, and magnetic blocks (17) are provided on the top left and right sides of the moving platform (1).

6. The support device for aircraft maintenance according to claim 5, characterized in that: It also includes a protective shell (18) and a folding shell (19). The protective shell (18) is fixedly connected to the outer side of the slide rails on the front and rear sides of the lifting plate (2), and the folding shell (19) is provided between the lifting plate (2) and the moving platform (1).