Adjustable bearing and supporting device applied to vehicle-mounted parking apron

Abstract

The utility model belongs to the technical field of vehicle-mounted parking aprons, and relates to an adjustable bearing and supporting device applied to a vehicle-mounted parking apron. The parking apron comprises a parking apron middle support, a plurality of folding type panel supporting frame bodies rotationally connected with the parking apron middle support are arranged on the two sides of the parking apron middle support, and a leveling supporting piece is arranged at the bottom of the parking apron middle support. The bottom of the folding panel supporting frame body is provided with a getting-on and getting-off supporting leg supporting piece capable of doing reciprocating rectilinear motion in the vertical direction. The electric cylinder driving of the upper and lower vehicle supporting leg supporting piece is utilized, a dynamically-adjustable ground clearance control system is constructed, the pain point of'upper and lower vehicle rigid contact 'of a traditional supporting device is solved, and the storage type ground supporting fixing mechanism is in a composite structure of'rotary unfolding, electric cylinder supporting and buffer contact', so that the safety of a vehicle is improved. And a supporting blind area in the middle of the folding panel is filled.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted helipad technology and relates to an adjustable support device for vehicle-mounted helipads. Background Technology

[0002] With the development of aviation technology, vehicle-mounted helipads have been widely used in emergency rescue, special operations, and other fields. During the use of vehicle-mounted helipads, the performance of their support devices directly affects the stability and safety of the helipad. Existing vehicle-mounted helipad support devices have several problems. On the one hand, it is difficult to flexibly adjust the helipad's ground clearance during vehicle loading and unloading, leading to instability and potential damage to the helipad and related equipment. On the other hand, after the helipad lands, the lack of an effective leveling mechanism makes it difficult to ensure the helipad surface is level, posing a safety hazard for helicopters and other aircraft takeoffs and landings. Furthermore, existing support devices are insufficient in terms of support strength and stability, especially for the central suspended position of the helipad, where the lack of effective auxiliary support structures makes it prone to accidents due to instability during aircraft takeoffs and landings. Additionally, during vehicle transport, the support devices are often difficult to store properly, occupying a large space and affecting the use of other vehicle functions and the convenience of transportation. Therefore, there is an urgent need to design an adjustable support device for vehicle-mounted helipads that can overcome the above shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a vehicle-mounted helipad [application number: 201620015417.X], which includes a tractor and a semi-trailer chassis. A wing-shaped cargo box with a helipad is mounted on the semi-trailer chassis. Side support legs are provided on the sides of the wing-shaped cargo box. The wing-shaped cargo box is equipped with a top deployment device and a side deployment device. A container cargo box is mounted on the semi-trailer chassis, and the container cargo box is equipped with a ladder, lifting lights, a refueling pump, and a rest area. The side support legs are mechanical; the top deployment device and the side deployment device are hydraulic; a storage box and stop blocks are provided under the semi-trailer chassis; and boundary lights are provided on the helipad. However, this solution still has the drawback of making it difficult to flexibly adjust the height of the helipad during vehicle loading and unloading, resulting in an unstable loading and unloading process that can easily damage the helipad and related equipment. Furthermore, once the helipad is in place, it still lacks an effective leveling mechanism and auxiliary support structure, making it difficult to ensure that the surface of the helipad is level and has overall stability. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing an adjustable support device for use on vehicle-mounted helipads.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable support device for vehicle-mounted helipads includes a central support frame for the helipad. Several foldable panel support frames are rotatably connected to the central support frame on both sides. A leveling support is located at the bottom of the central support frame. Each foldable panel support frame has a vertically movable, reciprocating vehicle outrigger support at its bottom. The leveling support and the vehicle outrigger support are staggered. A rotatable, retractable ground-supporting mechanism is located on the foldable panel support frame between the leveling support and the vehicle outrigger support.

[0007] In the aforementioned adjustable support device for vehicle-mounted helipads, the retractable ground-supporting mechanism includes a central rotating seat mounted on a foldable panel support frame. An auxiliary electric cylinder is mounted on the central rotating seat, and an anti-suspension support foot is connected to the auxiliary electric cylinder.

[0008] In the aforementioned adjustable support device for vehicle-mounted helipads, the central rotating seat is provided with a first rotating part and a second rotating part. The first rotating part is connected to the central rotating seat via a rotating shaft. The central rotating seat is also provided with a storage and rotating drive component connected to the second rotating part.

[0009] In the aforementioned adjustable support device for vehicle-mounted helipads, the housing rotation drive includes a swing arm rotating cylinder mounted on a central rotating seat, the power shaft of which is hinged to a second rotating part.

[0010] In the aforementioned adjustable support device for vehicle-mounted parking aprons, a rotating connector is installed between the tail end of the swing arm rotating cylinder and the folding panel support frame. One end of the rotating connector is rotatably connected to the folding panel support frame, and the other end is fixedly connected to the swing arm rotating cylinder.

[0011] In the aforementioned adjustable support device for vehicle-mounted parking aprons, the rotating connector includes a rotating cylinder fixing seat located at the tail of the swing arm rotating cylinder. The rotating cylinder fixing seat is fixedly connected to the swing arm rotating cylinder. A rotating shaft fixing ring is provided at the tail of the rotating cylinder fixing seat. The rotating shaft fixing ring and the folding panel support frame are rotatably engaged through a rotating shaft.

[0012] In the aforementioned adjustable support device for vehicle-mounted helipads, a first buffer pad is installed at the bottom of the anti-suspension support foot, and the cross-sectional area of ​​the buffer pad is larger than the cross-sectional area of ​​the anti-suspension support foot.

[0013] In the aforementioned adjustable support device for vehicle-mounted helipads, the leveling support includes a leveling electric cylinder located at the bottom of a support in the middle of the helipad, and the bottom of the leveling electric cylinder is provided with leveling feet.

[0014] In the aforementioned adjustable support device for vehicle-mounted helipads, the vehicle-mounted outrigger support includes an electric cylinder for the outriggers located at the bottom of a folding panel support frame, and the bottom of the electric cylinder for the outriggers is provided with a stable outrigger.

[0015] In the aforementioned adjustable support device for vehicle-mounted helipads, a second buffer pad is installed at the bottom of the leveling foot, and a third buffer pad is installed at the bottom of the stabilizing foot.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. This utility model utilizes the electric cylinder drive of the support components for the upper and lower vehicle outriggers to construct a dynamically adjustable ground clearance control system, solving the pain point of "rigid contact between upper and lower vehicle" in traditional support devices. Furthermore, the storage-type ground support and fixing mechanism fills the support blind spot in the middle of the folding panel through a composite structure of "rotation unfolding + electric cylinder support + buffer contact".

[0018] 2. The support mechanism in this utility model can quickly switch between "working state (three-dimensional support)" and "transportation state (planar storage)," improving space utilization and breaking the contradiction between "support strength" and "storage volume."

[0019] 3. The buffer pads of each support foot in this utility model are connected to ball joints to form a composite force-bearing structure of "rigid support + flexible contact", which can adapt to complex terrain and extend the service life of the equipment.

[0020] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model.

[0022] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0024] In the diagram: 1. Central support frame of the helipad; 2. Folding panel support frame; 3. Leveling support component; 4. Outrigger support component for loading and unloading vehicles; 5. Retractable ground support mechanism; 6. Central rotating seat; 7. Auxiliary electric cylinder; 8. Anti-suspension support foot; 9. First rotating part; 10. Second rotating part; 11. Retractable rotating drive component; 12. Swing arm rotating cylinder; 13. Rotating cylinder fixing seat; 14. Rotating shaft fixing ring; 15. First buffer pad; 16. Leveling electric cylinder; 17. Leveling support foot; 18. Support foot electric cylinder; 19. Stabilizing support foot; 20. Second buffer pad; 21. Third buffer pad. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings.

[0026] like Figure 1-3 As shown, an adjustable support device for vehicle-mounted helipads includes a central support frame 1 for the helipad. Several foldable panel support frames 2, rotatably connected to the central support frame 1, are provided on both sides of the central support frame 1. A leveling support 3 is provided at the bottom of the central support frame 1. A vehicle-mounted outrigger support 4, capable of reciprocating linearly in the vertical direction, is provided at the bottom of each foldable panel support frame 2. The leveling support 3 and the vehicle-mounted outrigger support 4 are staggered. A rotatable, retractable ground-supporting fixing mechanism 5 is provided on each foldable panel support frame 2, located between the leveling support 3 and the vehicle-mounted outrigger support 4.

[0027] In this embodiment, the central support 1 of the helipad serves as the main frame, and its two sides are connected to the foldable panel support frame 2 through a rotating connection structure (such as a pivot or hinge), allowing the latter to be unfolded or folded around the central support, adapting to both vehicle transport and ground support states. The leveling support 3 is installed at the bottom of the central support 1, and the upper and lower vehicle outrigger support 4 is distributed at the bottom of the foldable panel support frame 2. The two are staggered in the horizontal projection (i.e., not collinear), forming a "multi-point support matrix" to avoid uneven force caused by overlapping support points. The retractable ground support fixing mechanism 5 is installed in the middle of the foldable panel support frame 2 through a rotating connection, located in the suspended area between the leveling support 3 and the upper and lower vehicle outrigger support 4, filling the blind spot of the central support.

[0028] The staggered leveling support 3 and the outrigger support 4 allow the helipad to adjust the overall height during vehicle loading and unloading, and then finely level it after landing, forming a dual height control system of "coarse adjustment + fine adjustment". The retractable ground support and fixing mechanism 5 addresses the central suspension defect of traditional support devices by providing auxiliary support after deployment, constructing a three-dimensional support structure of "edge support + central reinforcement", which significantly improves the anti-overturning ability.

[0029] Combination Figure 1-3As shown, the retractable ground support and fixing mechanism 5 includes a central rotating seat 6 disposed on the foldable panel support frame 2, an auxiliary electric cylinder 7 disposed on the central rotating seat 6, and an anti-suspension support foot 8 connected to the auxiliary electric cylinder 7.

[0030] Specifically, the central rotating seat 6 is fixed to the crossbeam of the folding panel support frame 2 by bolts or welding. Its top is provided with an installation groove. The cylinder body of the auxiliary electric cylinder 7 is hinged to the central rotating seat 6 by a pin. The end of the piston rod is fixedly connected to the anti-suspension support foot 8. The auxiliary electric cylinder 7 can rotate around the central rotating seat 6, and at the same time, it drives the anti-suspension support foot 8 to move up and down by extending and retracting the piston rod.

[0031] The auxiliary electric cylinder 7 has both "angle adjustment" and "height adjustment" functions: when unfolded, it first rotates to a vertical angle, and then extends the piston rod to make the anti-suspension support foot 8 touch the ground, providing mid-section support; when retracted, it first retracts the piston rod, and then rotates to be flush with the support frame to avoid protruding and occupying space. The setting of the anti-suspension support foot 8 reduces the mid-span deflection (bending deformation) of the folding panel support frame 2 and improves the support rigidity.

[0032] Combination Figure 2 , Figure 3 As shown, the central rotating seat 6 is provided with a first rotating part 9 and a second rotating part 10. The first rotating part 9 is connected to the central rotating seat 6 by a rotating shaft. The central rotating seat 6 is also provided with a storage rotating drive 11 connected to the second rotating part 10. The storage rotating drive 11 includes a swing arm rotating cylinder 12 disposed on the central rotating seat 6. The power shaft of the swing arm rotating cylinder 12 is hinged to the second rotating part 10.

[0033] In this embodiment, a "T-shaped" mounting bracket is provided on the top of the central rotating seat 6. The first rotating part 9 is hinged to the left side of the mounting bracket via a horizontal rotating shaft, allowing it to rotate around the horizontal axis (adjusting the pitch angle). The second rotating part 10 is hinged to the power shaft of the swing arm rotating cylinder 12, which is fixed to the right side of the central rotating seat 6. The second rotating part 10 is driven to rotate around the vertical axis (adjusting the horizontal angle) by the swing of the cylinder body. The two work together to achieve "two-dimensional angle adjustment" of the anti-suspension support foot 8. The first rotating part 9 adapts to the ground slope, ensuring that the anti-suspension support foot 8 is always in vertical contact with the ground. When stored, the second rotating part 10 drives the support foot to rotate to the side of the support frame, achieving "zero protrusion" storage. Compared with traditional motor gear transmission, the swing arm rotating cylinder 12 has a faster response speed and overload protection function to prevent jamming.

[0034] Combination Figure 3As shown, a rotating connector is installed between the tail of the swing arm rotating cylinder 12 and the folding panel support frame 2. One end of the rotating connector is rotatably connected to the folding panel support frame 2, and the other end is fixedly connected to the swing arm rotating cylinder 12. The rotating connector includes a rotating cylinder fixing seat 13 disposed at the tail of the swing arm rotating cylinder 12. The rotating cylinder fixing seat 13 is fixedly connected to the swing arm rotating cylinder 12. A rotating shaft fixing ring 14 is provided at the tail of the rotating cylinder fixing seat 13. The rotating shaft fixing ring 14 and the folding panel support frame 2 are rotatably engaged through a rotating shaft.

[0035] In this embodiment, the rotating connector includes a rotating cylinder fixing seat 13 fixedly connected to the tail of the swing arm rotating cylinder 12, and a rotating shaft fixing ring 14 at its end, which is rotatably connected to the longitudinal beam of the folding panel support frame 2 through a vertical rotating shaft. When the swing arm rotating cylinder 12 is working, it swings around the rotating shaft as the fulcrum, driving the second rotating part 10 to rotate. The rotating connector forms a "hinged fulcrum + swing lever" structure, which amplifies the driving torque of the swing arm rotating cylinder 12 and reduces energy consumption; at the same time, it allows the support mechanism to withstand lateral loads (such as the impact of helicopter wake) when it is deployed, improving wind resistance.

[0036] The bottom of the anti-suspension support foot 8 is equipped with a first buffer pad 15, the cross-sectional area of ​​which is larger than that of the anti-suspension support foot 8.

[0037] In this embodiment, threaded holes are opened at the bottom of the anti-suspension support foot 8, and the first buffer pad 15 is fixed by bolts. Its material is high elastic rubber with a thickness of 5-10mm and a cross-sectional area that is 30% larger than that of the support foot. The buffer pad absorbs the impact force caused by uneven ground, avoids deformation of the support foot caused by rigid contact, increases the contact area, reduces the grounding specific pressure by 25%, and is suitable for soft ground (such as grass and sand) to prevent sinking.

[0038] Combination Figure 1-2 As shown, the leveling support 3 includes a leveling electric cylinder 16 located at the bottom of the support 1 in the middle of the apron, and the bottom of the leveling electric cylinder 16 is provided with leveling feet 17.

[0039] In this embodiment, the leveling electric cylinder 16 is vertically installed on the bottom flange of the support 1 in the middle of the helipad. The cylinder body is fixed to the support, and the end of the piston rod is connected to the leveling support leg 17 through a ball joint, allowing the support leg to adapt to the ground tilt angle. The leveling electric cylinder 16 has an accuracy of 0.1mm. With the help of the level sensor, the flatness of the helipad can be adjusted to within ±2mm within 30 seconds. The ball joint connection avoids the support leg from being subjected to bending moment and extends the life of the electric cylinder.

[0040] Combination Figure 1 , Figure 2As shown, the vehicle support leg 4 includes a foot cylinder 18 disposed at the bottom of the folding panel support frame 2, and the foot cylinder 18 is provided with a stable foot 19 at the bottom.

[0041] In this embodiment, the outrigger electric cylinder 18 is installed on the U-shaped bracket at the bottom of the folding panel support frame 2. The piston rod is rigidly connected to the stable outrigger 19, with a stroke of 50-300mm, which meets the needs of getting on and off vehicles with different chassis heights. When getting on and off the vehicle, by synchronously controlling the outrigger electric cylinders 18 on both sides, the tilt angle of the parking apron can be ≤3° to prevent the cargo from sliding. When controlled independently, it can adapt to sloping terrain and broaden the application scenarios.

[0042] Combination Figure 2 As shown, the bottom of the leveling support 17 is equipped with a second buffer pad 20, and the bottom of the stabilizing support 19 is equipped with a third buffer pad 21.

[0043] In this embodiment, both the leveling foot 17 and the stabilizing foot 19 have polyurethane buffer pads attached to their bottoms. The pads are 8mm thick and have anti-slip textures on their surfaces. The buffer pads reduce the inertial impact when the vehicle starts / brakes and protect the ground coating (such as airport epoxy flooring). The anti-slip textures increase the static friction coefficient and prevent the support feet from slipping.

[0044] The working principle of this utility model is as follows:

[0045] When the vehicle-mounted helipad needs to be accessed or disembarked, the outrigger cylinder 18 of the access leg support 4 is activated. The outrigger cylinder 18 drives the stabilizing outrigger 19 to move vertically. According to the relative height of the vehicle and the ground and the terrain conditions, the extension length of the stabilizing outrigger 19 is adjusted to ensure smooth access to and from the helipad, avoiding bumps and tilting, and ensuring the safety of the helipad and related equipment.

[0046] After the aircraft lands on the apron, the leveling support component 3 begins to operate, activating the leveling electric cylinder 16. The leveling electric cylinder 16 drives the leveling support leg 17 to move up and down. By detecting the levelness of the apron surface, the extension and retraction of the leveling electric cylinder 16 is controlled to adjust the leveling support leg 17 to the appropriate height, thereby ensuring that the apron surface is level and meets the requirements for aircraft takeoff and landing.

[0047] After the apron is leveled, the retractable ground support and fixing mechanism 5 is deployed. The swing arm rotating cylinder 12, acting as the retractable rotation drive component 11, drives the second rotating part 10 to rotate, causing the auxiliary electric cylinder 7 and the anti-suspension support foot 8 to rotate to the appropriate position. Then, the auxiliary electric cylinder 7 extends, pushing the anti-suspension support foot 8 downward to contact the ground, providing auxiliary support for the suspended position in the middle of the folding panel support frame 2, improving the overall support strength and stability of the apron, and ensuring the stability of the apron during aircraft takeoff and landing.

[0048] When the helipad needs to be transported by vehicle, the auxiliary electric cylinder 7 is first retracted to raise the anti-suspension support foot 8 off the ground. Then, the swing arm rotating cylinder 12 rotates in the opposite direction, driving the second rotating part 10 to rotate, so that the retractable ground support fixing mechanism 5 is retracted to be flush with the foldable panel support frame 2, reducing the space occupied and facilitating vehicle transportation. Throughout the process, the various components cooperate with each other to realize the functional switching of the vehicle-mounted helipad support device in different working states, meeting the needs of actual use.

[0049] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0050] Although this document frequently uses terms such as 1. helipad center support, 2. folding panel support frame, 3. leveling support, 4. vehicle outrigger support, 5. retractable ground support mechanism, 6. center rotating seat, 7. auxiliary electric cylinder, 8. anti-suspension support foot, 9. first rotating part, 10. second rotating part, 11. retractable rotating drive, 12. swing arm rotating cylinder, 13. rotating cylinder fixing seat, 14. rotating shaft fixing ring, 15. first buffer pad, 16. leveling electric cylinder, 17. leveling outrigger, 18. outrigger electric cylinder, 19. stabilizing outrigger, 20. second buffer pad, and 21. the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. An adjustable support device for vehicle-mounted helipads, comprising a central support frame (1) for the helipad, wherein a plurality of foldable panel support frames (2) are provided on both sides of the central support frame (1) and are rotatably connected to the central support frame (1), characterized in that, The bottom of the central support bracket (1) of the helipad is provided with a leveling support (3), and the bottom of the folding panel support frame (2) is provided with a vehicle support leg (4) that can move back and forth in a vertical direction. The leveling support (3) and the vehicle support leg (4) are arranged alternately. The folding panel support frame (2) is provided with a rotatable storage ground support fixing mechanism (5), which is located between the leveling support (3) and the vehicle support leg (4).

2. The adjustable support device for vehicle-mounted helipads according to claim 1, characterized in that, The retractable ground support fixing mechanism (5) includes a central rotating seat (6) set on the foldable panel support frame (2), an auxiliary electric cylinder (7) is provided on the central rotating seat (6), and an anti-suspension support foot (8) is connected to the auxiliary electric cylinder (7).

3. The adjustable support device for vehicle-mounted helipads according to claim 2, characterized in that, The central rotating seat (6) is provided with a first rotating part (9) and a second rotating part (10). The first rotating part (9) is connected to the central rotating seat (6) by a rotating shaft. The central rotating seat (6) is also provided with a storage rotating drive (11) connected to the second rotating part (10).

4. The adjustable support device for vehicle-mounted helipads according to claim 3, characterized in that, The storage rotation drive (11) includes a swing arm rotating cylinder (12) disposed on the central rotating seat (6), and the power shaft of the swing arm rotating cylinder (12) is hinged to the second rotating part (10).

5. An adjustable support device for vehicle-mounted helipads according to claim 4, characterized in that, A rotating connector is installed between the tail of the swing arm rotating cylinder (12) and the folding panel support frame (2). One end of the rotating connector is rotatably connected to the folding panel support frame (2), and the other end is fixedly connected to the swing arm rotating cylinder (12).

6. An adjustable support device for vehicle-mounted helipads according to claim 5, characterized in that, The rotating connector includes a rotating cylinder fixing seat (13) located at the tail of the swing arm rotating cylinder (12). The rotating cylinder fixing seat (13) is fixedly connected to the swing arm rotating cylinder (12). The tail of the rotating cylinder fixing seat (13) is provided with a rotating shaft fixing ring (14). The rotating shaft fixing ring (14) and the folding panel support frame (2) are rotatably engaged by a rotating shaft.

7. An adjustable support device for vehicle-mounted helipads according to claim 6, characterized in that, The bottom of the anti-suspension support foot (8) is equipped with a first buffer pad (15), and the cross-sectional area of ​​the first buffer pad (15) is greater than the cross-sectional area of ​​the anti-suspension support foot (8).

8. An adjustable support device for vehicle-mounted helipads according to claim 7, characterized in that, The leveling support (3) includes a leveling electric cylinder (16) located at the bottom of the support (1) in the middle of the apron, and the bottom of the leveling electric cylinder (16) is provided with leveling feet (17).

9. An adjustable support device for vehicle-mounted helipads according to claim 8, characterized in that, The vehicle support leg (4) includes a foot cylinder (18) located at the bottom of the folding panel support frame (2), and the foot cylinder (18) has a stable foot (19) at its bottom.

10. An adjustable support device for vehicle-mounted helipads according to claim 9, characterized in that, The bottom of the leveling foot (17) is equipped with a second buffer pad (20), and the bottom of the stabilizing foot (19) is equipped with a third buffer pad (21).

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