A concealed boarding platform system integrated into an aircraft fuselage

Abstract

This invention relates to the field of aviation equipment technology, specifically to a concealed elevator boarding platform system integrated into the aircraft fuselage. It includes a base located inside the aircraft fuselage door, a lifting mechanism for adjusting the base height, and first folding guardrails on both sides of the base. The lifting mechanism includes a base located below the base, first elongated holes on both sides of the base, a lower shaft with both ends passing through the first elongated holes, a drive cylinder with one end hinged to the lower shaft and the other end hinged to the base, second elongated holes on both sides of the base, an upper shaft with both ends passing through the second elongated holes, and two sets of lifting rods located on both sides of the base and distributed crosswise. This invention solves the problems of special groups being unable to independently board and disembark, and the limitations of existing ground lifting equipment due to space, scheduling, weather, and parking location restrictions.

Description

Technical Field

[0001] This invention relates to the field of aviation equipment technology, and in particular to a concealed elevator boarding platform system integrated into the aircraft fuselage. Background Technology

[0002] Currently, in the fields of civil aviation, business aviation, and general aviation, passengers generally rely on airport-provided external ground equipment such as jet bridges, fixed boarding stairs, or mobile lifts for boarding, while the aircraft themselves are not equipped with onboard, autonomous, barrier-free boarding devices.

[0003] Existing boarding ramps have steep steps, significant elevation differences, and poor accessibility. Elderly individuals, those with mobility issues, people with disabilities, pregnant women, and those with injuries or illnesses must climb multiple steps to board or disembark, making balance difficult and increasing the risk of falls, bumps, sprains, and other accidents, compromising travel safety. Furthermore, these individuals often cannot board or disembark independently and require assistance throughout the process, reducing their autonomy and compromising their personal dignity. Existing ground-based elevators are limited by space, scheduling, weather, and parking location; their operation is cumbersome, slow to respond, and cannot be readily deployed in remote airports or those without such facilities, lacking versatility.

[0004] At the same time, there is no existing technology that integrates a boarding platform into the aircraft fuselage, can be independently raised and lowered, and is compatible with wheelchair access. Summary of the Invention

[0005] The purpose of this invention is to provide a concealed lifting and boarding platform system integrated into the aircraft fuselage, which can be mounted on the aircraft and can lift and lower autonomously and smoothly, adapting to special groups to board and disembark independently.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a concealed lifting boarding platform system integrated into the aircraft fuselage, comprising a base placed inside the aircraft fuselage door, a lifting mechanism for adjusting the height of the base being provided on the lower side of the base, first folding guardrails being provided on both sides of the base, and an extension plate being provided on the base, the extension plate being retractably stored inside the base to expand the passage area.

[0007] By adopting the above technical solution, a special cabin door (not a regular disembarkation door) is opened for special groups such as the elderly, those with mobility issues, the disabled, pregnant women, and those with injuries or illnesses. The operator moves the base inside the cabin door out of the cabin, and the lifting mechanism adjusts the height of the base so that the base supports the ground. At the same time, the first folding guardrail is opened for protection. The special group moves from the cabin door to the base, and then the lifting mechanism lowers the base to complete the disembarkation. After use, the base is stored inside the cabin door, enabling random loading, autonomous and stable landing and takeoff, and adapting to the independent boarding and disembarking of special groups.

[0008] A further configuration of the present invention is as follows: the lifting mechanism includes a base located below the base, a first elongated hole on both sides of the base, a lower shaft with both ends passing through the first elongated holes on both sides, a drive cylinder with one end hinged to the lower shaft and the other end hinged to the base, a second elongated hole on both sides of the base, an upper shaft with both ends passing through the second elongated holes on both sides, and two sets of lifting rods located on both sides of the base and distributed crosswise; the lifting rods include a first rod with one end hinged to the end of the lower shaft, a second rod with one end hinged to the end of the upper shaft and the other end hinged to the end of the first rod, a third rod with one end hinged to the base and the middle part hinged to the first rod, and a fourth rod with one end hinged to the base and the middle part hinged to the second rod, wherein the ends of the third rod and the fourth rod are hinged together.

[0009] By adopting the above technical solution, the first, second, third and fourth rods are hinged together to facilitate the unfolding and folding of the lifting rod assembly. At the same time, the folding and unfolding of the lifting rod assembly can be driven by a drive cylinder.

[0010] A further feature of the present invention is that a connecting rod is rotatably connected between the two sets of lifting rods at the hinge position.

[0011] By adopting the above technical solution, the connection stability between the two lifting rod assemblies can be increased by using a connecting rod.

[0012] A further provision of the present invention is as follows: a hinge post is provided on the lower side of the first folding guardrail and hinged to the upper side of the base; a positioning post is provided on the side of the first folding guardrail; a fixing sleeve is provided on the base at the position corresponding to the positioning post; a positioning sleeve for the lower end of the positioning post to be inserted is provided inside the upper end of the fixing sleeve; and a return spring is provided at the bottom of the fixing sleeve with its upper end connected to the positioning sleeve and its lower end connected to the bottom wall of the fixing sleeve.

[0013] By adopting the above technical solution, when the first folding guardrail is not needed, it is flipped to fit against the upper surface of the base. When the first folding guardrail is needed, it is flipped upwards, and the positioning sleeve is pressed down inside the fixing sleeve, while the return spring is compressed until the first folding guardrail is flipped to a vertical position and the positioning post moves above the positioning sleeve. Then the positioning sleeve is released, and under the elastic restoring force of the return spring, the positioning sleeve moves upwards so that the lower end of the positioning post can be inserted, thereby positioning the vertical position of the first folding guardrail through the positioning sleeve.

[0014] A further feature of the present invention is that the base has a cavity that communicates with the outside on one side and is used to house the extension plate, and the extension plate has connecting arms hinged to both sides, with a support plate provided between the connecting arms on both sides.

[0015] By adopting the above technical solution, after the base lowers the people to the ground position, the extension plate is removed from the cavity. Then the connecting arm and the support plate can swing downward and fit against the ground. At this time, the support plate is tilted downward, which makes it easier for people with mobility impairments and special groups of people who get off the machine in wheelchairs to leave the base.

[0016] A further feature of the present invention is that anti-slip strips are provided on the upper surfaces of both the support plate and the base.

[0017] By adopting the above technical solution, the anti-slip strip can play an anti-slip role, which helps to improve the stability of people moving on the support plate and base.

[0018] A further feature of the present invention is that a cavity layer is formed inside the extension plate, and servo motors are fixed on both sides of the cavity layer. The output shaft of the servo motor extends out to the outside of the side of the extension plate and is connected to a drive gear. Racks for meshing with the drive gears are fixed on the inner walls of both sides of the cavity.

[0019] By adopting the above technical solution, when it is necessary to remove the extension plate from the cavity, the servo motor drives the drive gear to rotate. Since the drive gear meshes with the rack, it can move along the rack, which in turn moves the extension plate in the cavity. Finally, the extension plate can be automatically moved in and out of the cavity.

[0020] A further provision of the present invention is as follows: a second folding guardrail is provided on both sides of the support plate, and a sliding post is provided at both ends of the second folding guardrail. An installation sleeve for the sliding post to be embedded is rotatably connected to the support plate. A limiting hole is provided at the upper end of the installation sleeve, and a connecting groove is provided at the lower end of the sliding post. A limiting ball for embedding in the limiting hole is provided in the connecting groove, and a connecting spring with one end connected to the limiting ball and the other end connected to the bottom wall of the connecting groove is provided in the connecting groove.

[0021] By adopting the above technical solution, after the support plate is removed from the cavity, the mounting sleeve and the second folding guardrail are flipped upwards, and then the sliding column is pulled up, so that the limiting ball in the connecting groove is embedded in the limiting hole. At this time, the position of the mounting sleeve and the second folding guardrail after unfolding can be positioned, which is beneficial for the second folding guardrail to provide safety protection for passers-by. At the same time, when the second folding guardrail is not needed, it is pressed down, so that the limiting ball is disengaged from the limiting hole. At this time, the sliding column of the second folding guardrail can retract into the mounting sleeve. Then, the height of the second folding guardrail on both sides decreases and it can be folded into the upper surface of the support plate. Finally, the support plate can be easily retracted into the cavity.

[0022] A further feature of the present invention is that: a limiting sleeve is provided on the support plate for the lower end of the mounting sleeve to be embedded; an opening groove is provided on one side of the limiting sleeve; and a fixing spring is provided inside the limiting sleeve, with one end connected to the bottom wall of the limiting sleeve and the other end connected to the bottom wall of the mounting sleeve.

[0023] By adopting the above technical solution, when the mounting sleeve needs to be flipped upward, the fixing spring is stretched, and the mounting sleeve can move upward. Then, the lower end of the mounting sleeve can be embedded in the limiting sleeve, and the fixing spring passes through the opening groove. Finally, the limiting of the mounting sleeve after it is flipped upward to the vertical position can be completed.

[0024] The beneficial effects of this invention are as follows: For special groups such as the elderly, those with mobility issues, the disabled, pregnant women, and those with injuries or illnesses, the aircraft opens a dedicated cabin door (not a regular disembarkation door). The operator moves the base inside the cabin door outwards, and a drive cylinder unfolds the lifting rod assembly, allowing the base to support the ground. Simultaneously, the first folding guardrail opens for protection. The special group moves from the cabin door to the base, and the drive cylinder then folds the lifting rod assembly, lowering the base to complete disembarkation. After use, the base, lifting rod assembly, and base can be folded and stored inside the cabin door, enabling random loading and autonomous, stable lifting and lowering, suitable for independent boarding and disembarking of special groups. Once the base has lowered the group to the ground, a servo motor moves the extension plate out of the cavity, allowing the connecting arm and support plate to swing downwards and rest against the ground. At this point, the support plate is tilted downwards, and the second folding guardrail opens, facilitating the disembarkation of people with mobility issues and those using wheelchairs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a structural schematic diagram of the present invention when the fuselage door is joined; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a structural plan view of the present invention when the extension plate and connecting arm are retracted into the cavity. Figure 4 This is a partial sectional view of the connection relationship between the positioning post and the fixing sleeve in this invention; Figure 5 This is a partial cross-sectional view of the connection relationship between the base and the extension plate in this invention; Figure 6 This is a partial sectional view of the connection relationship between the support plate, sliding column and mounting sleeve in this invention.

[0027] In the diagram, 1. Base; 11. Cavity; 12. Rack; 2. Lifting mechanism; 21. Base; 22. First elongated hole; 23. Lower shaft; 24. Drive cylinder; 25. Second elongated hole; 26. Upper shaft; 27. Lifting rod assembly; 271. First rod; 272. Second rod; 273. Third rod; 274. Fourth rod; 2701. Connecting rod; 3. First folding guardrail; 31. Hinge column; 32. Positioning column; 4. Fixing sleeve; 41. Positioning sleeve; 42. Return spring; 5. Extension plate; 51. Connecting arm; 52. Support plate; 521. Limiting sleeve; 522. Opening slot; 523. Fixing spring; 53. Cavity layer; 531. Servo motor; 532. Drive gear; 6. Anti-slip strip; 7. Second folding guardrail; 71. Sliding column; 711. Connecting groove; 712. Limiting ball; 713. Connecting spring; 8. Mounting sleeve; 81. Limiting hole. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] A concealed lift and boarding platform system integrated into the aircraft fuselage, referring to Figure 1 , Figure 2 , Figure 3 The concealed lift boarding platform system integrated into the aircraft fuselage includes a base 1 located inside the aircraft fuselage door, which is not a standard passenger disembarkation door. A lifting mechanism 2 for adjusting the height of the base 1 is located on its lower side. The lifting mechanism 2 includes a base 21 located below the base 1, first elongated holes 22 on both sides of the base 21, a lower shaft 23 with both ends passing through the first elongated holes 22, a drive cylinder 24 with one end hinged to the lower shaft 23 and the other end hinged inside the base 21, second elongated holes 25 on both sides of the base 1, an upper shaft 26 with both ends passing through the second elongated holes 25, and two sets of... The lifting rod assemblies 27 are located on both sides of the base 21 and are distributed in a crisscross pattern. The lifting rod assemblies 27 include a first rod 271 with one end hinged to the end of the lower shaft 23, a second rod 272 with one end hinged to the end of the upper shaft 26 and the other end hinged to the end of the first rod 271, a third rod 273 with one end hinged to the base 21 and the middle part hinged to the first rod 271, and a fourth rod 274 with one end hinged to the base 1 and the middle part hinged to the second rod 272. The ends of the third rod 273 and the fourth rod 274 are hinged together. A connecting rod 2701 is also rotatably connected between the two lifting rod assemblies 27 at the hinge position.

[0030] Reference Figure 2 , Figure 3 , Figure 4 Both sides of the upper surface of the base 1 are provided with a first folding guardrail 3. The lower side of the first folding guardrail 3 is integrally provided with a hinge post 31 that is hinged to the upper side of the base 1. The side of the first folding guardrail 3 is also integrally provided with a positioning post 32. At the same time, a fixing sleeve 4 is welded on the base 1 at the position corresponding to the positioning post 32. The upper end of the fixing sleeve 4 is provided with a positioning sleeve 41 for the lower end of the positioning post 32 to be inserted. The bottom of the fixing sleeve 4 is provided with a return spring 42 whose upper end is fixedly connected to the positioning sleeve 41 and whose lower end is fixedly connected to the bottom wall of the fixing sleeve 4.

[0031] Reference Figure 2 , Figure 5 The base 1 also has a cavity 11 that communicates with the outside on one side. An extension plate 5 is provided in the cavity 11. Connecting arms 51 are hinged to both sides of the extension plate 5. A support plate 52 is fixed between the two connecting arms 51. Anti-slip strips 6 are provided on the upper surface of the support plate 52 and the base 1. A cavity layer 53 is provided in the extension plate 5. A servo motor 531 is fixed to both sides of the cavity layer 53. The output shaft of the servo motor 531 extends to the outside of the side of the extension plate 5 and is connected to a drive gear 532. A rack 12 for the drive gear 532 to mesh is fixed on the inner walls of both sides of the cavity 11.

[0032] The base 1 is equipped with an intelligent control module, which is electrically connected to the drive cylinder 24 and the servo motor 531 to control their start and stop, and integrates one-button start / stop, lifting speed regulation, mechanical anti-pinch, and fault self-check and early warning functions.

[0033] Reference Figure 2 , Figure 6 The support plate 52 is provided with a second folding guardrail 7 on both sides, and a sliding column 71 is integrally provided at both ends of the second folding guardrail 7. The support plate 52 is rotatably connected with an installation sleeve 8 for the sliding column 71 to be inserted. The upper end of the installation sleeve 8 is provided with a limit hole 81, and the lower end of the sliding column 71 is provided with a connecting groove 711. The connecting groove 711 is provided with a limit ball 712 for being inserted into the limit hole 81. The connecting groove 711 is provided with a connecting spring 713, one end of which is fixedly connected to the limit ball 712 and the other end of which is fixedly connected to the bottom wall of the connecting groove 711. At the same time, the support plate 52 is fixed with a limit sleeve 521 for the lower end of the installation sleeve 8 to be inserted. The limit sleeve 521 is provided with an opening groove 522 on one side. The limit sleeve 521 is also provided with a fixing spring 523, one end of which is fixedly connected to the bottom wall of the limit sleeve 521 and the other end of which is fixedly connected to the bottom wall of the installation sleeve 8.

[0034] Principle: For special groups such as the elderly, those with mobility impairments, people with physical disabilities, pregnant women, and injured or ill passengers, the aircraft uses a non-standard disembarkation door. The operator places the base 1 inside the door outside, and simultaneously uses the drive cylinder 24 within the lifting mechanism 2 to unfold the lifting rod assembly 27, which in turn supports the base 21 on the ground. The first folding guardrail 3 is also opened for protection. After leaving the door, passengers move to the base 1. The drive cylinder 24 then folds the lifting rod assembly 27, causing the base 1 to descend, allowing passengers to disembark. After use, the base 1, lifting rod assembly 27, and base 21 can be folded and stored inside the aircraft fuselage door, allowing for independent and stable ascent and descent, accommodating special groups for independent boarding and disembarking. After use, the lifting rod assembly 27 can be folded and stored below the base, and the extension plate 5 retracts into the base 1, completely concealing the entire structure inside the aircraft door without occupying additional space. After the base 1 lowers the group to the ground, the servo motor 531 moves the extension plate 5 out of the cavity 11. Then the connecting arm 51 and the support plate 52 can swing downward and fit against the ground. At this time, the support plate 52 is tilted downward. At the same time, the second folding guardrail 7 is opened, so that people with mobility impairments and special groups of people who get off the machine in wheelchairs can leave the base 1.

Claims

1. A concealed elevator boarding platform system integrated into the aircraft fuselage, characterized in that: The system includes a base placed inside the aircraft fuselage door, a lifting mechanism for adjusting the height of the base on its lower side, first folding guardrails on both sides of the base, and an extension plate on the base that can be retracted into the base to expand the passage area.

2. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 1, characterized in that: The lifting mechanism includes a base located below the base, first elongated holes on both sides of the base, a lower shaft with both ends passing through the first elongated holes on both sides, a drive cylinder with one end hinged to the lower shaft and the other end hinged to the base, a second elongated hole on both sides of the base, an upper shaft with both ends passing through the second elongated holes on both sides, and two sets of lifting rods located on both sides of the base and distributed crosswise. The lifting rod sets include a first rod with one end hinged to the end of the lower shaft, a second rod with one end hinged to the end of the upper shaft and the other end hinged to the end of the first rod, a third rod with one end hinged to the base and the middle hinged to the first rod, and a fourth rod with one end hinged to the base and the middle hinged to the second rod. The ends of the third rod and the fourth rod are hinged together.

3. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 2, characterized in that: A connecting rod is rotatably connected between the two sets of lifting rods at the hinge position.

4. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 1, characterized in that: The first folding guardrail has a hinge post hinged to the upper side of the base on its lower side. A positioning post is provided on the side of the first folding guardrail. A fixing sleeve is provided on the base at the position corresponding to the positioning post. A positioning sleeve for the lower end of the positioning post to be inserted is provided inside the upper end of the fixing sleeve. A reset spring is provided at the bottom of the fixing sleeve, with its upper end connected to the positioning sleeve and its lower end connected to the bottom wall of the fixing sleeve.

5. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 1, characterized in that: The base has a cavity that communicates with the outside on one side and is used to house the extension plate. Both sides of the extension plate are hinged with connecting arms, and a support plate is provided between the two connecting arms.

6. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 5, characterized in that: Both the support plate and the upper surface of the base are provided with anti-slip strips.

7. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 5, characterized in that: The extension plate has a cavity layer, and servo motors are fixed on both sides of the cavity layer. The output shaft of the servo motor extends out to the side of the extension plate and is connected to a drive gear. Racks for the drive gear to mesh are fixed on the inner walls of both sides of the cavity.

8. The concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 5, characterized in that: The support plate is provided with a second folding guardrail on both sides, and a sliding post is provided at both ends of the second folding guardrail. The support plate is rotatably connected with an installation sleeve for the sliding post to be inserted. The upper end of the installation sleeve is provided with a limit hole, and the lower end of the sliding post is provided with a connecting groove. A limit ball for being inserted into the limit hole is provided in the connecting groove. A connecting spring is provided in the connecting groove with one end connected to the limit ball and the other end connected to the bottom wall of the connecting groove.

9. A concealed elevator boarding platform system integrated into the aircraft fuselage according to claim 8, characterized in that: The support plate is provided with a limiting sleeve for the lower end of the mounting sleeve to be inserted. An opening groove is provided on one side of the limiting sleeve. A fixing spring is provided inside the limiting sleeve, with one end connected to the bottom wall of the limiting sleeve and the other end connected to the bottom wall of the mounting sleeve.

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