Automatic alignment mechanism and airport boarding rescue vehicle

Abstract

The application relates to the technical field of emergency rescue equipment, and discloses an automatic alignment mechanism and an airport boarding rescue vehicle, wherein the automatic alignment mechanism comprises a platform main frame, a front extension platform, a rotating platform, and a power device; the front extension platform is in telescopic cooperation with the platform main frame; the rotating platform comprises a rotating part and a guiding part; the rotating part is hingedly connected with the front extension platform; the guiding part is at least one and is in telescopic cooperation with the front extension platform; the rotating part is provided with a sliding groove corresponding to the guiding part; the guiding part is provided with a sliding rod; the sliding rod extends into the sliding groove and is in sliding cooperation; and the power device is arranged on the platform main frame and is in driving connection with the front extension platform. The automatic alignment mechanism is low in cost and stable and reliable in structure.

Description

Technical Field

[0001] This application belongs to the field of emergency rescue equipment technology, specifically relating to an automatic alignment mechanism and an airport boarding rescue vehicle using the automatic alignment mechanism. Background Technology

[0002] Airport boarding rescue vehicles are special ground support vehicles, mainly used for rapid personnel evacuation and rescue operations in aircraft emergencies. Their lifting platform system connects to the aircraft hatch via the forward extension mechanism of the main rescue platform to assist in the rapid transfer of personnel.

[0003] However, if the front of the rescue vehicle is at an angle to the cabin door when it is parked, the extension mechanism will have a gap of the same angle with the cabin door during docking, which poses a certain safety hazard to the rescue operation.

[0004] In the prior art, such as the invention patent with announcement number CN109969424B and patent titled "Boarding Vehicle for Passengers with Disabilities", an adaptive device driven by a push rod is provided at the front end of the second platform. The adaptive device achieves gapless docking through a spring. This solution requires the addition of another power mechanism to drive the adaptive device closer to the cabin door, which increases the cost, and the spring is prone to failure under harsh working conditions. Utility Model Content

[0005] The purpose of this application is to provide an automatic alignment mechanism that aims to reduce costs and make the structure stable and reliable.

[0006] To achieve the above objectives, this application provides an automatic alignment mechanism, which includes: Platform mainframe; A forward-extending platform, which is telescopically connected to the main platform frame; A rotating platform includes a rotating part and a guiding part. The rotating part is hinged to the extending platform. The guiding part is at least one and telescopically engages with the extending platform. The rotating part has a sliding groove corresponding to the guiding part. The guiding part has a sliding rod that extends into the sliding groove and is slidably engaged. A power unit is located on the main frame of the platform and is driven to the extended platform.

[0007] In some embodiments, the forward extension platform includes: The front extension frame is telescopically coupled to the main frame of the platform, and the guide portion is telescopically coupled to the front extension frame; The first skin, used for personnel support, is located on the forward extension frame.

[0008] In some embodiments, the rotating part includes: A rotating frame, which is hinged to the front extension frame, and a sliding groove is formed in the rotating frame; The second skin, used for personnel support, is located on the rotating frame.

[0009] In some embodiments, the front end of the extension frame has a triangular frame, the apex of which is a hinge point, and the rotating frame is rotatably disposed at the hinge point.

[0010] In some embodiments, there are two guide portions located on opposite sides of the hinge point.

[0011] In some embodiments, the automatic alignment mechanism further includes a limiting part, there are multiple limiting parts and they are provided on the main frame of the platform. The multiple limiting parts correspond to multiple guide parts respectively. The end of the guide part away from the rotating part abuts against the limiting part to achieve limiting.

[0012] In some embodiments, the power unit is a hydraulic cylinder, a pneumatic cylinder, or a drive motor.

[0013] In some embodiments, the extension platform and the main platform frame are connected by a sleeve structure or a guide rail slider structure to achieve telescopic cooperation.

[0014] In some embodiments, the guide portion and the extending platform are telescopically coupled using a sleeve structure or a guide rail slider structure.

[0015] A second aspect of this application provides an airport boarding assistance vehicle, which includes the automatic alignment mechanism described above.

[0016] This utility model's technical solution includes a platform main frame, a forward extension platform, a rotating platform, and a power unit. The rotating platform includes a rotating part and a guide part connected by a slotted pin structure. The power unit drives the forward extension platform and the rotating platform to extend synchronously. When the rotating part is pressed, it rotates relative to the forward extension platform, causing at least one guide part to move in the opposite direction. By using the same power unit to achieve automatic alignment and rigid contact to achieve angular rotation, the technical problems of high cost and easy spring failure in the prior art are effectively solved, thereby achieving the technical effect of reducing costs and making the structure stable and reliable.

[0017] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of an embodiment of the automatic alignment mechanism of this utility model; Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a schematic diagram of the connection structure between the forward extension platform and the rotating platform of this utility model; Figure 4 This is a schematic diagram of the automatic alignment mechanism of this utility model in its extended state; Figure 5 This is a schematic diagram of the automatic alignment mechanism of this utility model adjusting the angle; Figure 6 This is a schematic diagram of the automatic alignment mechanism of this utility model in its retraction state; Explanation of reference numerals in the attached figures Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] The automatic alignment mechanism and airport boarding assistance vehicle according to this application are described below with reference to the accompanying drawings.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown in the embodiment of this utility model, the automatic alignment mechanism 100 includes a platform main frame 10, a forward extension platform 20, a rotating platform 30, and a power unit 40. The forward extension platform 20 is telescopically coupled to the platform main frame 10. The rotating platform 30 includes a rotating part 31 and a guide part 32. The rotating part 31 is hinged to the forward extension platform 20. The guide part 32 is at least one and is telescopically coupled to the forward extension platform 20. The rotating part 31 has a sliding groove 311a corresponding to the guide part 32. The guide part 32 has a sliding rod 321 that extends into the sliding groove 311a and is slidably coupled. The power unit 40 is located on the platform main frame 10 and is drivenly connected to the forward extension platform 20.

[0022] In this invention, the hinge position between the rotating part 31 and the forward extension platform 20 can be any position other than the two ends of the rotating part 31, and the number of guide parts 32 can be one or more.

[0023] The sliding groove 311a is horizontally opened, meaning its opening direction is perpendicular to the driving direction of the power device 40. When there is one guide part 32, the sliding groove 311a is spaced apart from the hinge position. When there are two guide parts 32, the two sliding grooves 311a can be located on opposite sides or the same side of the hinge position. When there are more than two guide parts 32, the multiple sliding grooves 311a can be arranged at equal or unequal intervals along the horizontal direction to correspond to the multiple guide parts 32. To prevent the slide rod 321 from disengaging from the sliding groove 311a, a limiting nut is also provided at the end of the slide rod 321 extending out of the sliding groove 311a.

[0024] In this utility model, the main platform frame 10 is a frame structure. The forward extension platform 20 and the rotating platform 30 are both located on the top of the main platform frame 10, together forming a support platform to support the transferred personnel. The power unit 40 is located on the main platform frame 10 and at the bottom of the support platform. The output shaft of the power unit 40 is connected to the forward extension platform 20 to realize the drive.

[0025] Understandably, the forward platform 20 and the rotating platform 30 are spaced vertically and have an overlapping area in the projection direction. The vertical spacing ensures that the rotational movement of the rotating platform 30 is not interfered with, and the overlapping area is set so that the support platform will not have gaps due to the positional change of the rotating platform 30 during the rotation of the rotating platform 30 relative to the forward platform 20, thereby ensuring the safety of personnel.

[0026] In this utility model, such as Figure 4 and Figure 5 As shown, the power unit 40 extends, driving the forward extension platform 20 and the rotating platform 30 to simultaneously approach the cabin door. The groove and pin pair formed between the sliding groove 311a of the rotating part 31 and the sliding rod 321 of the guide part 32 allows the guide part 32 to slide and change relative angle with the rotating part 31 within a certain range. At the same time, the rotating part 31 and the forward extension platform 20 are also connected by a hinge. The two work together to allow the rotating part 31 of the rotating platform 30 to rotate relative to the forward extension platform 20 when there is an angular gap between the rotating platform 30 and the cabin door, so that the end face of the rotating platform 30 can fit tightly against the end face of the cabin door.

[0027] In this utility model, the extension platform 20 and the platform main frame 10 are telescopically connected through a guide structure. This guide structure can restrict the movement direction of the extension platform 20 so that it is consistent with the driving direction of the power device 40. The rotating platform 30 and the extension platform 20 are also telescopically connected through a guide structure. This guide structure can ensure that the rotating part 31 will not detach from the extension platform 20 during rotation, even under extreme angle conditions.

[0028] Specifically, the extension direction of the power unit 40 is defined as the first direction, and the retraction direction as the second direction. Please refer to [reference needed]. Figure 4 and Figure 5 In the diagram, the arrow pointing upwards represents the first direction, and the arrow pointing downwards represents the second direction. When the output shaft of the power unit 40 extends in the first direction, it pushes the forward extension platform 20 and the rotating platform 30 to move forward synchronously to approach the cabin door. When the output shaft extends to a certain length, the rotating platform 30 will contact the cabin. At this time, if there is a certain angle between the end face of the rotating platform 30 and the end face of the cabin, the cabin will have a reaction force when the rotating platform 30 contacts the cabin. This reaction force causes the rotating part 31 of the rotating platform 30 to rotate relative to the forward extension platform 20. At least one guide part 32 moves along the second direction due to the rotation of the rotating platform 30. The output shaft of the power unit 40 continues to extend forward when subjected to the reaction force until the rotating part 31 is completely in contact with the cabin, and the power unit 40 stops extending forward.

[0029] The extension of the forward platform 20 and the rotation of the rotating platform 30 are achieved by the same power unit 40, which is low in cost. The automatic alignment of the rotating platform 30 is achieved by rigid contact, which does not require an additional monitoring mechanism and is more stable and reliable than elastic contact.

[0030] In embodiments of this utility model, such as Figure 1 and Figure 3 As shown, the extended platform 20 includes an extended frame 21 and a first skin 22. The extended frame 21 is telescopically connected to the platform main frame 10, and the guide part 32 is telescopically connected to the extended frame 21. The first skin 22 is used for personnel support and is located on the extended frame 21. The extended frame 21 is a frame structure. The first skin 22 is located on the extended frame 21 by a fixed connection or a detachable connection. The first skin 22 covers the upper surface of the extended frame 21 to provide personnel support. The first skin 22 is relatively stationary with the extended frame 21, that is, it extends or retracts synchronously with the extended frame 21.

[0031] In embodiments of this utility model, such as Figure 1 , Figure 2 and Figure 3As shown, the rotating part 31 includes a rotating frame 311 and a second skin 312. The rotating frame 311 is hinged to the front extension frame 21, and a sliding groove 311a is formed in the rotating frame 311. The second skin 312 is used for personnel support and is disposed on the rotating frame 311. The rotating frame 311 is a frame structure. The second skin 312 is disposed on the rotating frame 311 by a fixed connection or a detachable connection. The first skin 22, in addition to covering the upper surface of the front extension frame 21, also forms an extension on the side close to the front extension frame 21. This extension and the first skin 22 form an overlapping area on the projected square. The second skin 312 is relatively stationary with the rotating frame 311, that is, it rotates synchronously with the rotating frame 311 at a certain angle. During the rotation of the rotating part 31 relative to the front extension platform 20, the second skin 312 and the first skin 22 do not interfere with each other, and due to the setting of the overlapping area, the support platform will not have gaps during the rotation.

[0032] In one embodiment of this utility model, such as Figure 1 , Figure 2 and Figure 3 As shown, the front end of the extension frame 21 has a triangular frame, and the apex of the triangular frame is the hinge point. The rotating frame 311 is rotatably located at the hinge point.

[0033] Furthermore, in order to achieve structural stability, the triangular frame can be an isosceles triangle, that is, the hinge point is located in the middle position, which makes it relatively stable during the forward or retraction process. At the same time, it also makes the rotation angle range of the rotating part 31 the same in different directions.

[0034] In this embodiment, there are two guide portions 32 located on opposite sides of the hinge point. Guide members that telescopically engage with the guide portions 32 are respectively provided at the two bottom corners of the extension frame 21. The guide portions 32 and the guide members can employ any structure to achieve the guiding engagement.

[0035] Those skilled in the art will understand that, in addition to the above-mentioned scheme in which there are two guide parts 32 located on opposite sides of the hinge point, the position and number of guide parts can also be adjusted according to actual needs, which will not be elaborated here.

[0036] Furthermore, the shape of the front end frame 21 of this application is not limited to the aforementioned triangle, but may also be other frame shapes. Other structural forms that can serve as support frames and achieve hinged connections and guiding cooperation with other components should also fall within the protection scope of this application.

[0037] In embodiments of this utility model, such as Figure 1As shown, the automatic alignment mechanism 100 also includes a limiting part 50. There are multiple limiting parts 50 and they are provided on the platform main frame 10. The multiple limiting parts 50 correspond to multiple guide parts 32 respectively. The end of the guide part 32 away from the rotating part 31 abuts against the limiting part 50 to achieve the limiting.

[0038] Understandably, the function of the limiting part 50 is to help the rotating part 31 return to its correct position, and also to limit the position after the retrieval is completed. Its specific structure can be plate-shaped, block-shaped, or other forms. Multiple limiting parts 50 are located in the same direction and correspond to multiple guide parts 32 respectively. When the rotating part 31 does not rotate at an angle, the distance between the multiple guide parts 32 and the multiple limiting parts 50 is the same. When the rotating part 31 rotates at an angle, the distance between different guide parts 32 and their corresponding limiting parts 50 is different.

[0039] When the output axis of the power unit 40 retracts in the second direction, it pulls the forward extension platform 20 and the rotating platform 30 backward synchronously to move away from the cabin door. The rotating platform 30 maintains its original angle. If there is a certain angle between the rotating frame 311 and the forward extension frame 21, the distances between the multiple guide parts 32 and their corresponding limiting parts 50 will differ. During the recovery process, the guide parts 32 that are closer together will contact the limiting parts 50 first. The limiting parts 50 provide a reaction force to push the rotating frame 311 to rotate back to the upright position. Figure 6 As shown, the retraction action is completed when all guide parts 32 are in close contact with the limiting part 50.

[0040] This utility model achieves the retrieval of the forward platform 20 and the rotating platform 30 through the same power unit 40. The rotating platform 30 is automatically leveled by setting a limiting part 50. The automatic leveling of the rotating platform 30 is also achieved by rigid contact, without the need for an additional monitoring mechanism. The limiting part 50 also limits the position after the platform is straightened, and the overall structure is stable and reliable.

[0041] In the embodiments of this utility model, the power device 40 is a hydraulic cylinder, a pneumatic cylinder, or a drive motor. Those skilled in the art will understand that other structural forms capable of achieving telescopic drive should also fall within the protection scope of this application.

[0042] In embodiments of this utility model, the extension platform 20 and the platform main frame 10 are telescopically coupled using a sleeve structure or a guide rail slider structure. The guide part 32 and the extension platform 20 are also telescopically coupled using a sleeve structure or a guide rail slider structure. The sleeve structure includes a guide tube and a guide cylinder, the shape of which is adapted to the shape of the guide tube. The guide tube can be a square tube, a round tube, or other shapes that achieve the guiding function. The guide rail slider includes a linear guide rail and a slider that slides with it. Alternatively, a linear bearing can be used in conjunction with a guide rod. Those skilled in the art will understand that any form constituting the sliding pair can be substituted.

[0043] This utility model also proposes an airport boarding rescue vehicle (not shown in the figure), which includes an automatic alignment mechanism 100. The specific structure of the automatic alignment mechanism 100 is as described in the above embodiments. Since this airport boarding rescue vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0044] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0045] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An automatic alignment mechanism, characterized in that, The automatic alignment mechanism includes: Platform mainframe (10); A forward extension platform (20) is telescopically connected to the main platform frame (10); A rotating platform (30) includes a rotating part (31) and a guide part (32). The rotating part (31) is hinged to the forward extension platform (20). The guide part (32) is at least one and is telescopically engaged with the forward extension platform (20). The rotating part (31) has a sliding groove (311a) corresponding to the guide part (32). The guide part (32) is provided with a sliding rod (321). The sliding rod (321) extends into the sliding groove (311a) and is slidably engaged. A power unit (40) is located on the main frame (10) of the platform and is driven to connect with the forward platform (20).

2. The automatic alignment mechanism as described in claim 1, characterized in that, The extended platform (20) includes: The front extension frame (21) is telescopically connected to the main frame of the platform (10), and the guide part (32) is telescopically connected to the front extension frame (21); The first skin (22) is used for personnel support and is located on the forward extension frame (21).

3. The automatic alignment mechanism as described in claim 2, characterized in that, The rotating part (31) includes: A rotating frame (311) is hinged to the front extension frame (21), and a sliding groove (311a) is formed in the rotating frame (311). The second skin (312) is used for personnel support and is located on the rotating frame (311).

4. The automatic alignment mechanism as described in claim 3, characterized in that, The front end of the extension frame (21) has a triangular frame, the apex of which is a hinge point, and the rotating frame (311) is rotatably located at the hinge point.

5. The automatic alignment mechanism as described in claim 4, characterized in that, The guide portion (32) consists of two parts and is located on opposite sides of the hinge point.

6. The automatic alignment mechanism as described in claim 1, characterized in that, The automatic alignment mechanism also includes a limiting part (50), there are multiple limiting parts (50) and they are located on the main frame of the platform (10). The multiple limiting parts (50) correspond to multiple guide parts (32). The end of the guide part (32) away from the rotating part (31) abuts against the limiting part (50) to achieve limiting.

7. The automatic alignment mechanism as described in any one of claims 1 to 6, characterized in that, The power unit (40) is a hydraulic cylinder, a pneumatic cylinder, or a drive motor.

8. The automatic alignment mechanism as described in any one of claims 1 to 6, characterized in that, The extension platform (20) and the main frame of the platform (10) are connected by a sleeve structure or a guide rail slider structure to achieve telescopic cooperation.

9. The automatic alignment mechanism as described in any one of claims 1 to 6, characterized in that, The guide part (32) and the forward extension platform (20) are connected by a sleeve structure or a guide rail slider structure to achieve telescopic cooperation.

10. An airport boarding assistance vehicle, characterized in that, The airport boarding assistance vehicle includes an automatic alignment mechanism as described in any one of claims 1 to 9.

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