Aircraft cabin maintenance working device

Abstract

The utility model discloses an aircraft cockpit maintenance working device, which belongs to the technical field of aviation equipment maintenance and comprises an obliquely upward step structure and a foldable roller mechanism mounted at the lower end of the step structure. The roller mechanism comprises an iron core polyurethane single wheel, a supporting plate, a single wheel connecting rod and a wheel shaft mechanism, the supporting plate is installed at the lower end of the step structure, a semicircular plate with a circle center hole is arranged on the lower portion of one side of the supporting plate, two eccentric shafts are installed on the wheel shaft mechanism, one eccentric shaft is installed on the supporting plate, and the other eccentric shaft is installed on the iron core polyurethane single wheel. When the iron core polyurethane single wheel is located on the side face of the supporting plate, the iron core polyurethane single wheel is in a folded state, the whole working device is supported on the ground, when the iron core polyurethane single wheel is located on the lower side of the supporting plate, the iron core polyurethane single wheel is in an extending state, and the whole working device can move. The device is simple and practical in structure, can be moved when being used, and can improve the maintenance efficiency of thermal guarantee maintenance of the aircraft cockpit.

Description

Technical Field

[0001] This utility model belongs to the field of aviation equipment maintenance technology, and relates to an aircraft cockpit maintenance working device, specifically a cockpit maintenance working device with a certain load-bearing capacity and short-distance mobility. Background Technology

[0002] A platform is required for the cockpit of a certain type of aircraft during major overhauls, key repairs, and temporary repairs (thermal protection). This platform needs to provide a usable height of approximately 1500mm, a load capacity of at least 200kg (with a 200kg load test showing no deformation after 24 hours), and be secured against slippage during use. It should be manually moved using a lever for short distances, and the thermal protection time should be minimized with minimal manpower (ideally by a single person). Currently, there is a lack of dedicated cockpit maintenance tooling; general-purpose ladders are typically used, which, for safety and stability, make movement difficult, requiring four people to move. This cockpit is currently under maintenance. Utility Model Content

[0003] To fill the gap in maintenance tooling and shorten the time cycle during thermal maintenance of a certain type of aircraft, this utility model provides a universal cockpit maintenance tool that can quickly, stably, effectively, and safely perform thermal maintenance on the cockpit, providing strong support in a short period of time.

[0004] The present invention adopts the following technical solution:

[0005] An aircraft cockpit maintenance work device includes a support frame, a roller mechanism, steps, and handrails. The support frame, steps, and handrails form an upwardly inclined stepped structure. The roller mechanism is foldably installed at the lower end of the stepped structure and is used to switch the work device between a fixed support state and a transport state.

[0006] The roller mechanism includes a polyurethane core single wheel, a wrench lever 24, a support plate 25, a single wheel connecting rod 26, and a wheel axle mechanism 27. The support plate 25 is generally square, with a protruding semi-circular plate on one side at the bottom, and a mounting hole at the center of the semi-circular plate. The wheel axle mechanism 27 includes a wheel axle 23, a rotating disk 29, and a rotating shaft 30. The rotating disk 29 has two symmetrical holes, in which the wheel axle 23 and the rotating shaft 30 are fixed respectively. The rotating shaft 30 is connected to the mounting hole on the support plate 25, and the wheel axle 23 is fixed at the center of the polyurethane core single wheel. The support plate 25 and the wheel axle mechanism are also mentioned. The folding wheel structure, consisting of 27 and iron-core polyurethane single wheels, is arranged in two sets. The upper ends of the two support plates 25 are fixed to the middle of the two sides of the lower surface of the stepped structure. The two wheel axles 23 are fixedly connected by single wheel connecting rods 26. A wrench rod 24 is fixed on the single wheel connecting rod 26. By operating the wrench rod 24, the position of the two iron-core polyurethane single wheels can be changed. When the two iron-core polyurethane single wheels are located on the side of the support plate 25, they are in a folded state, and the entire working device is supported on the ground. When the two iron-core polyurethane single wheels are located on the lower side of the support plate 25, they are in an extended state, and the entire working device can be moved.

[0007] The beneficial effects of this utility model are as follows: This utility model has a simple and practical structure, is readily usable and movable, and can improve the maintenance efficiency during aircraft cockpit thermal protection maintenance. It avoids scratches and damage to the outer side of the cockpit caused by non-dedicated ladders, and its non-folding structure avoids threats to personal safety and reduces personal injury (previously, ladders were folded for portability). Furthermore, due to the high versatility of this maintenance work device, it can be extended to maintenance and debugging of similar models and heights in automobiles, ships, and other similar vehicles. Attached Figure Description

[0008] Figure 1 This is an overall structural diagram of the present invention, wherein (a) is a front view and (b) is a side view.

[0009] Figure 2 This is a diagram of the pedal structure.

[0010] Figure 3 The diagram shows the structure of the support plate, where (a) is the front view and (b) is the side view.

[0011] Figure 4 This is a structural diagram of a wheel and axle mechanism.

[0012] Figure 5 This is a structural diagram of a plastic bowl.

[0013] The components include: 1. Handrail horizontal bar; 2. Handrail vertical bar; 3. Handrail diagonal bar; 4. Handrail diagonal bar reinforcing rib; 5. Handrail railing; 6. Steps; 7. Steps horizontal bar; 8. Steps diagonal bar; 9. Steps side bar; 10. Steps arc bar; 11. Bottom connecting rod; 12. Reinforcing rib; 13. Bottom horizontal bar; 14. Diagonal bar; 15. Ladder vertical bar; 16. Rubber cup base; 17. Short vertical bar; 18. Edge sealing plate; 19. Top anti-slip step; 20. Step liner; 21. Top step first bottom bar; 22. Top step second bottom bar; 23. Wheel axle; 24. Wrench lever; 25. Support plate; 26. Single wheel connecting rod; 27. Wheel axle mechanism; 28. Rubber cup; 29. ​​Rotating disc; 30. Rotating shaft. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below.

[0015] An aircraft cockpit maintenance work device includes a support frame, a roller mechanism, steps, and handrails. The support frame, steps, and handrails are welded into an upward-sloping universal stepped structure. The main body is made of Q235-G32×3 welded material with a rust-proof paint finish. The roller mechanism is foldably installed at the lower end of the stepped structure, used for switching the work device between fixed and transportable states. Figure 1 .

[0016] The steps include treads 6, tread crossbars 7, tread diagonal bars 8, tread side bars 9, tread arc bars 10, edge-sealing pressure plates 18, top-level anti-slip treads 19, tread lining plates 20, top-level tread first bottom bar 21, and top-level tread second bottom bar 22; the four tread diagonal bars 8 are grouped in pairs, and several tread side bars 9 are fixedly connected between the two tread diagonal bars 8 in each group, and the bottom of each pair is fixedly connected to the tread arc bars 10. Several tread crossbars 7 are fixedly connected between the two groups of tread diagonal bars 8, and the positions of the tread crossbars 7 and tread side bars 9 correspond to each other for fixing. The fixed pedal 6, with the tops of two sets of pedal diagonal rods 8 respectively fixedly connected to the first bottom rods 21 of the two top-level pedals, and the two first bottom rods 21 of the top-level pedals fixedly connected to the second bottom rods 22 of the top-level pedals, forms a top-level platform. The top-level platform is fixed with an edge-sealing plate 18, a top-level anti-slip pedal 19, and a pedal liner 20, and anti-collision rubber tubes are fixed at the edges; the pedal 6 adopts a reverse installation form of φ8 pitch 30×30 perforated stainless steel plate, that is, the perforated edge faces upward, which can not only play the role of anti-slip edge, but also ensure that rainwater does not accumulate in outdoor rainy weather, such as Figure 2 .

[0017] The support frame includes a bottom connecting rod 11, a reinforcing rib 12, a bottom horizontal rod 13, a diagonal rod 14, ladder vertical rods 15, a rubber cup base 16, short vertical rods 17, and rubber cups 28. The upper ends of the two ladder vertical rods 15 are respectively fixed to the first bottom rods 21 of the two top step stools, and the lower ends are fixed with rubber cup bases 16 to support them on the ground. The upper ends of the two short vertical rods 17 are respectively fixed to the arc rods 10 of the two step stools, and the lower ends are fixed with rubber cup bases 16 to support them on the ground. A bottom connecting rod 11 is fixed between the two ladder vertical rods 15 and the two sets of diagonal step stools 8. A bottom horizontal rod 13 is fixedly connected between the two bottom connecting rods 11. A reinforcing rib 12 and a diagonal rod 14 are fixedly connected between the two bottom connecting rods 11 and the middle of the two sets of diagonal step stools 8 to increase the supporting force. A rubber cup 28 (e.g., Figure 5 ( ), to increase friction.

[0018] The handrail consists of two sets, which are fixedly connected by handrail horizontal bars 1, handrail vertical bars 2, handrail diagonal bars 3, several handrail diagonal bar reinforcing ribs 4, and handrail guardrails 5. The two sets of handrails are fixedly connected to two sets of pedal diagonal bars 8 and the top platform. The handrail horizontal bars 1, handrail vertical bars 2 and handrail diagonal bars 3 are fixedly connected by welded elbows.

[0019] The roller mechanism includes a polyurethane core single wheel, a wrench lever 24, a support plate 25, a single wheel connecting rod 26, and a wheel axle mechanism 27; as shown Figure 3 The support plate 25 is generally square, with a protruding semi-circular plate on the lower part of one side. A mounting hole is formed at the center of this semi-circular plate. Figure 4 The wheel and axle mechanism 27 includes a wheel and axle 23, a rotating disk 29, and a rotating shaft 30. The rotating disk 29 has two symmetrical holes, in which the wheel and axle 23 and the rotating shaft 30 are fixed respectively. The rotating shaft 30 is connected to the mounting hole on the support plate 25. The wheel and axle 23 is fixed at the axle center of the iron core polyurethane single wheel. The folding wheel structure composed of the support plate 25, the wheel and axle mechanism 27, and the iron core polyurethane single wheel is provided in two sets. The upper ends of the two support plates 25 are respectively fixed to the middle of the two bottom connecting rods 11. The two wheel and axles 23 are fixedly connected by a single wheel connecting rod 26. A wrench rod 24 is fixed on the single wheel connecting rod 26. By operating the wrench rod 24, the position of the two iron core polyurethane single wheels can be changed. When the two iron core polyurethane single wheels are located on the side of the support plate 25, they are in a folded state, and the entire working device is supported on the ground. When the two iron core polyurethane single wheels are located on the underside of the support plate 25, they are in an extended state. The entire working device can be moved by a single person.

[0020] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An aircraft cockpit maintenance apparatus, characterized in that, The working device includes an upwardly inclined stepped structure and a foldable roller mechanism installed at the lower end of the stepped structure, enabling the working device to switch between a fixed support state and a transport state. The roller mechanism includes a polyurethane core single wheel, a support plate (25), a single wheel connecting rod (26), and a wheel axle mechanism (27). The support plate (25) is generally square, with a protruding semi-circular plate on the lower part of one side, and a mounting hole at the center of the semi-circular plate. The wheel axle mechanism (27) includes a wheel axle (23), a rotating disk (29), and a rotating shaft (30). The rotating disk (29) has two symmetrical holes, in which the wheel axle (23) and the rotating shaft (30) are fixed respectively. The rotating shaft (30) is connected to the mounting hole on the support plate (25). The wheel axle (23) Fixed at the axle of the polyurethane core wheel; the folding wheel structure consisting of the support plate (25), the wheel and axle mechanism (27) and the polyurethane core wheel is provided in two sets. The upper ends of the two support plates (25) are fixed to the middle of both sides of the lower surface of the stepped structure, and the two wheel axles (23) are fixedly connected by the single wheel connecting rod (26). When the two polyurethane core wheels are located on the side of the support plate (25), they are in a folded state and the entire working device is supported on the ground. When the two polyurethane core wheels are located on the lower side of the support plate (25), they are in an extended state and the entire working device is movable.

2. The aircraft cockpit maintenance apparatus according to claim 1, characterized in that, A wrench lever (24) is fixed on the single wheel connecting rod (26), and the position of the two iron core polyurethane single wheels can be changed by operating the wrench lever (24).

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