Transfer structure, transfer device and airplane

Abstract

The utility model discloses a transfer structure, transfer device and airplane, transfer structure includes crossbeam, roller subassembly, drive subassembly and connecting piece, roller subassembly is connected with the bottom surface of crossbeam, drive subassembly at least part is connected with the top surface of crossbeam, connecting piece is located the bottom side of crossbeam, at least the other part of the driving assembly penetrates through the cross beam and is in driving connection with the connecting piece, the connecting piece is detachably connected with an undercarriage of the aircraft, and the driving assembly drives the undercarriage to ascend and descend through the connecting piece. According to the transfer structure disclosed by the utility model, the connecting piece of the transfer structure is connected with the undercarriage, and the driving component provides driving force for the connecting piece to drive the undercarriage to move, so that when an airplane needs to be moved, the connecting piece is driven by the driving component to move towards the direction of the cross beam, and the undercarriage is lifted; at the moment, the aircraft can be moved through the roller structures. According to the transfer structure, the transfer device and the aircraft, the problem that an aircraft landing gear in the prior art is inconvenient to move can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to aircraft, and in particular relates to a transfer structure, a transfer device and an aircraft. Background Art

[0002] For aircraft that can take off and land vertically, skid-type landing gear is currently used to support the aircraft on the ground or other buildings after landing. Compared with wheeled landing gear, skid-type landing gear not only has a good force unloading effect, but also has the advantages of easy manufacturing and assembly, low cost, and light weight.

[0003] However, the skid-type landing gear cannot be easily transferred on the ground for short distances like the wheeled landing gear, and special auxiliary equipment is required to achieve this. The existing solutions mostly use forklifts and other auxiliary means for movement. However, in some venues, such as those that require small radius turns, forklifts are not very convenient. In addition, forklifts are heavy and large in size, and require a large storage space for random transportation, which is not very convenient and has poor use effect.

[0004] Therefore, it is necessary to improve the prior art to overcome the above defects in the prior art. Utility Model Content

[0005] Therefore, the technical problem to be solved by the utility model is that the aircraft landing gear in the prior art is inconvenient to move.

[0006] In order to solve the above technical problems, the utility model provides a transfer structure, which includes a crossbeam; a roller assembly, the roller assembly is connected to the bottom surface of the crossbeam; a drive assembly, at least a part of the drive assembly is connected to the top surface of the crossbeam; a connector, the connector is located on the bottom side of the crossbeam, at least another part of the drive assembly passes through the crossbeam and is drive-connected to the connector, the connector is detachably connected to the landing gear of the aircraft, and the drive assembly drives the landing gear to rise and fall through the connector. The transfer structure disclosed in the present application uses the connector of the transfer structure to connect with the landing gear, and the drive assembly provides driving force for the connector to drive the landing gear to move, and then when the aircraft needs to be moved, the drive assembly drives the connector to move toward the direction of the crossbeam to lift the landing gear, and the aircraft can be moved by the roller structure. The transfer structure, transfer device and aircraft disclosed in the utility model can solve the problem of inconvenient movement of aircraft landing gear in the prior art.

[0007] Optionally, the driving assembly and the connecting member cooperate to form a lifting assembly, and the lifting assembly is arranged at two end regions of the cross beam along the length extension direction of the cross beam. The lifting frame is driven to move up and down by two lifting assemblies, and the arrangement of two lifting assemblies arranged at two end regions of the cross beam is conducive to improving the stability of the lifting and moving of the landing gear, and avoiding the phenomenon that the landing gear cannot be moved due to uneven force.

[0008] Optionally, the driving assembly includes a driving member, the driving member is fixedly connected to the cross beam, and a transmission rod, the driving member is drivingly connected to the transmission rod, one end of the transmission rod located at the bottom side of the cross beam is connected to the connecting member, and the driving member provides driving force for the transmission rod to move up and down. The driving member is used to increase the driving force, the transmission rod is connected to the connecting member, and the transmission rod and the connecting member move synchronously, and the driving member drives the connecting member to move up and down by driving the transmission rod to move up and down.

[0009] Optionally, the transmission rod is a lead screw, the driving member is a lead screw lifter, the lead screw lifter drives the lead screw to move up and down, and the lead screw lifter is a manual lead screw lifter or an electric lead screw lifter. The lead screw lifter is directly matched with the crossbeam for installation, which is simple to install and has a small overall size and is easy to carry.

[0010] Optionally, the driving member is a telescopic motor or a telescopic cylinder or a hydraulic cylinder, which is drivingly connected to the transmission rod, and drives the transmission rod to move up and down.

[0011] Optionally, the driving assembly includes a nut, which is fixed on the connecting piece; a screw, one end of which is rotatably connected to the nut, and the other end of which passes through the crossbeam and is exposed on the top of the crossbeam, and the rotation of the screw is used to provide driving force for the nut to drive the connecting piece to rise and fall. The movement of the nut is achieved by rotating the screw, which is simple to operate and has a simple overall structure, which is conducive to improving efficiency and reducing costs.

[0012] Optionally, the connecting member includes a main body, the driving assembly is drivingly connected to the main body, the main body has a mounting cavity and a through hole connected to the mounting cavity, and at least a portion of the landing gear is located inside the mounting cavity; a locking member, at least a portion of the locking member passes through the through hole to lock the landing gear or separate the locking member from the main body. The connecting member of the present application is detachably connected to the landing gear, and the landing gear is matched with the mounting cavity. When at least a portion of the landing gear is extended into the interior of the mounting cavity, the landing gear is locked by the locking member to fix the landing gear to the connecting member; the connection member is separated from the landing gear by disassembling the locking member.

[0013] Optionally, the main body includes a first plate segment, a second plate segment and a third plate segment arranged in sequence, the second plate segment is arranged on the side of the first plate segment and the third plate segment facing the crossbeam, the first plate segment and the third plate segment are spaced apart to form an opening structure, and the first plate segment, the second plate segment and the third plate segment cooperate to form an installation cavity; the drive assembly is drivingly connected to the second plate segment, and the first plate segment and the third plate segment have coaxial through holes.

[0014] Optionally, a plurality of roller assemblies are provided along the length extension direction of the cross beam, and the plurality of roller assemblies are arranged at intervals; and / or at least one of the roller assemblies is a universal wheel. The plurality of rolling assemblies is provided to improve the moving efficiency of the transfer structure, and the plurality of roller assemblies form a plurality of supporting points with the ground, which is conducive to improving the stability of the operation.

[0015] Optionally, the transport structure further includes a limit hinge, which is arranged in pairs at the bottom of the beam, and the two limit hinges arranged in pairs are arranged at intervals along the length extension direction of the beam. The transport structure provided by the present application is provided with a limit hinge, which is used to provide a support position for a forklift to facilitate the movement of the landing gear by the forklift. The transport structure of the present application itself has the function of transporting the landing gear and is perfectly compatible with forklift transport, which is conducive to transporting the aircraft in multiple different scenarios, improving applicability and improving use efficiency.

[0016] The utility model also provides a transfer device, which includes the above transfer structure, wherein a plurality of transfer structures are provided, the length of the crossbeam extends along a first direction, and the plurality of transfer structures are arranged at intervals along a second direction perpendicular to the first direction. By arranging a plurality of transfer structures to adapt to the landing gear, it is beneficial to improve the transfer efficiency and the stability of the transfer.

[0017] Optionally, the transfer device further comprises a connecting rod, a first end of which is connected to the cross beam of at least one of the transfer structures, and a traction rod, a second end of which is rotatably connected to the traction rod. The traction rod is provided to achieve traction of the transfer device, which is conducive to improving the transfer efficiency.

[0018] Optionally, the transfer device further comprises a ball stud, and the end of the traction rod facing the cross beam has an end portion, the ball stud is connected to the end portion, and the connecting rod and the traction rod are rotatably connected via the ball stud. The use of the ball stud is not only convenient for assembly, but also convenient for adjusting the angle of the traction rod, thereby improving applicability.

[0019] The utility model also provides an aircraft, which includes a landing gear, which includes at least two support rods arranged at intervals along a first direction, and the length of the support rods extends along a second direction; the above-mentioned transfer device, the two ends of the crossbeam of the transfer structure of the transfer device are respectively connected to the two support rods.

[0020] The technical solution provided by the utility model has the following advantages:

[0021] The transfer structure provided by the present application is used in conjunction with the landing gear of an aircraft. The connecting piece of the transfer structure is used to connect with the landing gear. The driving assembly provides driving force for the connecting piece to drive the landing gear to move. When the aircraft needs to be moved, the driving assembly drives the connecting piece to move toward the crossbeam to lift the landing gear. At this time, the aircraft can be moved by the roller structure. The transfer structure used in the present application is arranged on the aircraft landing gear to facilitate the movement of the aircraft, thereby solving the problem of inconvenient movement of the aircraft landing gear in the prior art.

[0022] The transfer structure provided in the present application is provided with a limited hinge, which is used to provide a support position for a forklift to facilitate the movement of the landing gear by the forklift. The transfer structure of the present application itself has the function of transferring the landing gear and is also perfectly compatible with forklift transfer, which is conducive to the transfer of aircraft in multiple different scenarios, improves applicability, and helps to improve utilization efficiency.

[0023] The transfer structure of the present application has a small overall size and light weight, and is convenient to carry and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is an exploded view of the transfer structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the transfer device of the utility model;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the transfer device and the landing gear installation of the utility model;

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the transfer device and the landing gear installation of the utility model;

[0029] Figure 5 It is a top view of the landing gear of the utility model.

[0030] Description of reference numerals:

[0031] 10. crossbeam; 20. roller assembly; 30. drive assembly; 310. drive member; 320. transmission rod; 40. connecting member; 410. main body; 411. through hole; 420. locking member; 50. limit hinge; 60. connecting rod; 70. traction rod; 80. landing gear; 810. support rod. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0033] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0034] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0035] The utility model solves the problem that the aircraft landing gear in the prior art is inconvenient to move.

[0036] Example 1

[0037] This embodiment provides a transport structure, such as Figures 1 to 4 As shown, the transfer structure includes a crossbeam 10, a roller assembly 20, a drive assembly 30 and a connector 40. The roller assembly 20 is connected to the bottom surface of the crossbeam 10, at least a portion of the drive assembly 30 is connected to the top surface of the crossbeam 10, the connector 40 is located on the bottom side of the crossbeam 10, at least another portion of the drive assembly 30 passes through the crossbeam 10 and is drive-connected to the connector 40, the connector 40 is detachably connected to the landing gear 80 of the aircraft, and the drive assembly 30 drives the landing gear 80 to rise and fall via the connector 40.

[0038] The connecting member 40 is movably arranged on the bottom side of the cross beam 10, so that the connecting member 40 drives the landing gear 80 to move up and down relative to the cross beam 10. When the connecting member 40 drives the landing gear 80 to move toward one side of the cross beam 10, that is, when it rises, the landing gear 80 is separated from the ground, and at this time, the transfer structure drives the landing gear 80 to move through the roller assembly 20.

[0039] Specifically, the transfer structure provided by the present application is used in conjunction with the landing gear 80 of the aircraft. The connecting member 40 of the transfer structure is used to connect with the landing gear 80. The driving assembly 30 provides driving force for the connecting member 40 to drive the landing gear 80 to move. When the aircraft needs to be moved, the driving assembly 30 drives the connecting member 40 to move toward the direction of the crossbeam 10 to lift the landing gear 80. At this time, the aircraft can be moved by the roller structure. The transfer structure used in the present application is arranged on the aircraft landing gear 80 to facilitate the movement of the aircraft, thereby solving the problem of inconvenient movement of the aircraft landing gear 80 in the prior art.

[0040] Furthermore, the driving assembly 30 is fixed on the beam 10 , and the driving assembly 30 moves the connecting member 40 toward or away from the beam 10 , that is, the driving assembly 30 provides driving force for the lifting and lowering movement of the connecting member 40 .

[0041] In this embodiment, the driving assembly 30 and the connecting member 40 cooperate to form a lifting assembly, and the lifting assembly is arranged at two end regions of the cross beam 10 along the length extension direction of the cross beam 10. The driving assembly 30 is connected to the connecting member 40 to form a lifting whole, and the lifting assemblies arranged at the two end regions of the cross beam 10 are respectively connected to a part of the landing gear 80, and then the lifting gear is driven to move up and down through the two lifting assemblies. The arrangement of the two lifting assemblies arranged at the two end regions of the cross beam 10 is conducive to improving the stability of the lifting and moving of the landing gear 80, and avoiding the phenomenon that the landing gear 80 cannot be moved due to uneven force.

[0042] It should be noted that the length of the beam 10 extends along the first direction, and the two lifting assemblies are arranged at two end regions of the beam 10 along the first direction. Figure 4 The X direction in .

[0043] like Figure 1 As shown, the driving assembly 30 includes a driving member 310 and a transmission rod 320. The driving member 310 is fixedly connected to the beam 10. The driving member 310 is drivingly connected to the transmission rod 320. One end of the transmission rod 320 located on the bottom side of the beam 10 is connected to the connecting member 40. The driving member 310 provides driving force for the transmission rod 320 to move up and down.

[0044] Specifically, the driving member 310 is used to increase the driving force, the transmission rod 320 is connected to the connecting member 40, and the transmission rod 320 and the connecting member 40 move synchronously. The driving member 310 drives the connecting member 40 to move up and down by driving the transmission rod 320 to move up and down.

[0045] In a specific implementation of this embodiment, the transmission rod 320 is a lead screw, and the driving member 310 is a lead screw elevator. The lead screw elevator drives the lead screw to move up and down, and the lead screw elevator is a manual lead screw elevator.

[0046] The manual screw machine has a handwheel structure, which drives the screw to move up and down by rotating the handwheel structure with external force, which has low cost and simple operation.

[0047] In another specific implementation of this embodiment, the transmission rod 320 is a lead screw, and the driving member 310 is a lead screw elevator. The lead screw elevator drives the lead screw to move up and down, and the lead screw elevator is an electric lead screw elevator.

[0048] An electric-driven screw lift is used to drive the screw to move up and down, without the need for external force, which is beneficial to improving the transfer efficiency.

[0049] In another specific implementation of this embodiment, the driving member 310 is a telescopic motor, which is drivingly connected to the transmission rod 320 , and the telescopic motor drives the transmission rod 320 to move up and down.

[0050] In another specific implementation of this embodiment, the driving member 310 is a telescopic cylinder, which is drivingly connected to the transmission rod 320, and the telescopic cylinder drives the transmission rod 320 to move up and down.

[0051] In another specific implementation of this embodiment, the driving member 310 is a hydraulic cylinder, which is drivingly connected to the transmission rod 320 , and the hydraulic cylinder drives the transmission rod 320 to move up and down.

[0052] In another specific implementation of this embodiment, the driving assembly 30 includes a nut and a screw, the nut is fixed on the connecting member 40, one end of the screw is rotatably connected to the nut, and the other end of the screw passes through the beam 10 and is exposed at the top of the beam 10, and the rotation of the screw is used to provide driving force for the nut to drive the connecting member 40 to rise and fall.

[0053] The nut is fixedly connected to the connecting member 40, and the rotation of the screw will drive the nut to move up and down along the height direction of the screw. The screw can be rotated by manually driving the screw to rotate through a tool.

[0054] like Figure 1 As shown, the connecting member 40 includes a main body 410 and a locking member 420, the driving assembly 30 is drivingly connected to the main body 410, the main body 410 has a mounting cavity and a through hole 411 connected to the mounting cavity, at least a portion of the landing gear 80 is located inside the mounting cavity, and at least a portion of the locking member 420 passes through the through hole 411 to lock the landing gear 80 or separate the locking member 420 from the main body 410.

[0055] Specifically, the connecting member 40 of the present application is detachably connected to the landing gear 80, and the landing gear 80 is matched with the installation cavity. When at least a portion of the landing gear 80 extends into the interior of the installation cavity, the landing gear 80 is locked by the locking member 420 to fix the landing gear 80 and the connecting member 40; the connecting member 40 is separated from the landing gear 80 by removing the locking member 420.

[0056] Furthermore, the landing gear 80 has a channel structure connected to the through hole 411, so that the locking member 420 can fix the landing gear 80 to the main body 410 by passing through the through hole 411 and the channel structure.

[0057] Further, the main body 410 includes a first plate segment, a second plate segment and a third plate segment arranged in sequence, the second plate segment is arranged on the side of the first plate segment and the third plate segment facing the crossbeam 10, the first plate segment and the third plate segment are arranged at intervals to form an opening structure, and the first plate segment, the second plate segment and the third plate segment cooperate to form a mounting cavity. The first plate segment and the third plate segment are arranged at intervals along the first direction.

[0058] Further, the driving assembly 30 is drivingly connected to the second plate segment, and the first plate segment and the third plate segment have coaxial through holes 411. The first plate segment and the third plate segment each have a plurality of through holes 411, which are spaced apart along the second direction, and the second direction is perpendicular to the first direction.

[0059] It should be noted that the second direction is Figure 4 in the Y direction.

[0060] In this embodiment, the locking member 420 is a structure such as a screw or a pin, so as to facilitate fixing the main body 410 and the landing gear 80 by plugging.

[0061] like Figure 1 As shown, a plurality of roller assemblies 20 are provided along the length extension direction of the beam 10 .

[0062] The provision of a plurality of rolling assemblies is helpful in improving the moving efficiency of the transfer structure, and a plurality of roller assemblies 20 form a plurality of supporting points with the ground, which is helpful in improving the stability of the operation.

[0063] Furthermore, a plurality of roller assemblies 20 are arranged at intervals along the first direction.

[0064] Furthermore, at least one of the roller assemblies 20 is a universal wheel, and multi-directional transportation is achieved through the universal wheel.

[0065] In this embodiment, the transfer structure further includes a limiting hinge piece 50 , which is arranged in pairs at the bottom of the beam 10 , and the two limiting hinge pieces 50 arranged in pairs are spaced apart along the length extension direction of the beam 10 .

[0066] The transfer structure provided in the present application is provided with a limit hinge 50, which is used to provide a support position for a forklift to facilitate the movement of the landing gear 80 by the forklift. The transfer structure of the present application itself has the function of transferring the landing gear 80 and is also perfectly compatible with forklift transfer, which is conducive to realizing the transfer of aircraft in multiple different scenarios, improving applicability and improving utilization efficiency.

[0067] Example 2

[0068] This embodiment provides a transfer device, such as Figures 2 to 4 As shown, the transfer device includes the transfer structure in Example 1, and a plurality of transfer structures are provided. The length of the beam 10 extends along a first direction, and the plurality of transfer structures are spaced apart along a second direction perpendicular to the first direction.

[0069] Specifically, by providing multiple transfer structures to match the landing gear 80, it is helpful to improve the transfer efficiency and transfer stability. In this embodiment, at least three transfer structures are provided.

[0070] Furthermore, the transfer device further comprises a connecting rod 60 and a traction rod 70, wherein the first end of the connecting rod 60 is connected to at least one of the cross beams 10 of the transfer structure, and the second end of the connecting rod 60 is rotatably connected to the traction rod 70. Preferably, the connecting rod 60 is connected to the cross beam 10 near the end of the aircraft nose.

[0071] Among them, the traction rod 70 is provided to achieve traction of the transfer device, which is beneficial to improving the transfer efficiency.

[0072] In this embodiment, the transfer device further includes a ball stud, and the end of the traction rod 70 facing the cross beam 10 has a terminal head, the ball stud is connected to the terminal head, and the connecting rod 60 and the traction rod 70 are rotatably connected through the ball stud. The use of the ball stud is not only convenient for assembly, but also convenient for adjusting the angle of the traction rod 70, thereby improving applicability.

[0073] Example 3

[0074] This embodiment provides an aircraft, which includes a landing gear 80 and the transfer device in embodiment 2, such as Figures 2 to 5 As shown, the landing gear 80 includes at least two support rods 810 spaced apart in a first direction, the support rods 810 extend in a second direction, and both ends of the crossbeam 10 of the transfer structure of the transfer device are respectively connected to the two support rods 810. After the aircraft lands, the support rods 810 are used to support the ground, and the transfer device lifts the support rods 810 and separates them from the ground, and then moves the aircraft through the transfer device.

[0075] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0076] 1. The transfer structure provided by the present application is used in conjunction with the landing gear 80 of the aircraft. The connecting member 40 of the transfer structure is used to connect with the landing gear 80. The driving assembly 30 provides driving force for the connecting member 40 to drive the landing gear 80 to move. When the aircraft needs to be moved, the driving assembly 30 drives the connecting member 40 to move toward the direction of the crossbeam 10 to lift the landing gear 80. At this time, the aircraft can be moved by the roller structure. The transfer structure used in the present application is arranged on the aircraft landing gear 80 to facilitate the movement of the aircraft, thereby solving the problem of inconvenient movement of the aircraft landing gear 80 in the prior art.

[0077] 2. The transfer structure provided in the present application is provided with a limit hinge 50, which is used to provide a support position for a forklift to facilitate the movement of the landing gear 80 by the forklift. The transfer structure of the present application itself has the function of transferring the landing gear 80 and is also perfectly compatible with forklift transfer, which is conducive to the transfer of aircraft in multiple different scenarios, improves applicability, and helps to improve utilization efficiency.

[0078] 3. The transfer structure of the present application is small in size and light in weight, and is convenient to carry and transport.

[0079] Obviously, the above described embodiments are only a part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, ordinary technicians in this field can make other different forms of changes or modifications without creative work, which should fall within the scope of protection of the utility model.

Claims

1. A transport structure, characterized in that: include: Crossbeam (10); A roller assembly (20), wherein the roller assembly (20) is connected to the bottom surface of the crossbeam (10); a driving assembly (30), at least a portion of which is connected to the top surface of the crossbeam (10); A connecting member (40), the connecting member (40) is located on the bottom side of the crossbeam (10), at least another part of the driving assembly (30) passes through the crossbeam (10) and is drivingly connected to the connecting member (40), the connecting member (40) is detachably connected to the landing gear (80) of the aircraft, and the driving assembly (30) drives the landing gear (80) to rise and fall through the connecting member (40).

2. The transfer structure according to claim 1, characterized in that: The driving assembly (30) and the connecting member (40) cooperate to form a lifting assembly, and the lifting assembly is arranged at two end regions of the beam (10) along the length extension direction of the beam (10).

3. The transfer structure according to claim 1, characterized in that: The driving assembly (30) comprises: A driving member (310), wherein the driving member (310) is fixedly connected to the crossbeam (10); A transmission rod (320), the driving member (310) is drivingly connected to the transmission rod (320), one end of the transmission rod (320) located at the bottom side of the crossbeam (10) is connected to the connecting member (40), and the driving member (310) provides driving force for the transmission rod (320) to move up and down.

4. The transfer structure according to claim 3, characterized in that: The transmission rod (320) is a lead screw, and the driving member (310) is a lead screw elevator. The lead screw elevator drives the lead screw to move up and down, and the lead screw elevator is a manual lead screw elevator or an electric lead screw elevator.

5. The transfer structure according to claim 3, characterized in that: The driving member (310) is a telescopic motor or a telescopic cylinder or a hydraulic cylinder, and the telescopic motor or the telescopic cylinder or the hydraulic cylinder is drivingly connected to the transmission rod (320), and the telescopic motor or the telescopic cylinder or the hydraulic cylinder drives the transmission rod (320) to move up and down.

6. The transfer structure according to claim 1, characterized in that: The driving assembly (30) comprises: a nut, the nut being fixed on the connecting member (40); A screw rod, one end of which is rotatably connected to the nut, and the other end of which passes through the cross beam (10) and is exposed at the top of the cross beam (10). The rotation of the screw rod is used to provide a driving force for the nut to drive the connecting member (40) to rise and fall.

7. The transfer structure according to claim 1, characterized in that: The connecting member (40) comprises: a main body (410), the driving assembly (30) being drivingly connected to the main body (410), the main body (410) having a mounting cavity and a through hole (411) communicating with the mounting cavity, and at least a portion of the landing gear (80) being located inside the mounting cavity; A locking member (420), wherein at least a portion of the locking member (420) passes through the through hole (411) and is used to lock the landing gear (80) or separate the locking member (420) from the main body (410).

8. The transfer structure according to claim 7, characterized in that: The main body (410) comprises a first plate segment, a second plate segment and a third plate segment which are arranged in sequence, the second plate segment being arranged on a side of the first plate segment and the third plate segment facing the crossbeam (10), the first plate segment and the third plate segment being arranged at intervals to form an opening structure, and the first plate segment, the second plate segment and the third plate segment cooperate to form the installation cavity; The driving assembly (30) is drivingly connected to the second plate segment, and the first plate segment and the third plate segment are provided with coaxial through holes (411).

9. The transfer structure according to any one of claims 1 to 8, characterized in that: The roller assembly (20) is provided with a plurality of rollers along the length extension direction of the crossbeam (10). A plurality of the roller assemblies (20) are arranged at intervals; and / or At least one of the roller assemblies (20) is a universal wheel.

10. The transfer structure according to any one of claims 1 to 8, characterized in that: The transfer structure further comprises a limiting hinge piece (50), wherein the limiting hinge pieces (50) are arranged in pairs at the bottom of the cross beam (10), and the two limiting hinge pieces (50) arranged in pairs are arranged at intervals along the length extension direction of the cross beam (10).

11. A transfer device, characterized in that: The transfer device comprises: The transfer structure described in any one of claims 1 to 10, wherein a plurality of transfer structures are provided, the length of the cross beam (10) extends along a first direction, and the plurality of transfer structures are spaced apart along a second direction perpendicular to the first direction.

12. The transfer device according to claim 11, characterized in that: The transfer device also includes: A connecting rod (60), a first end of the connecting rod (60) being connected to at least one of the cross beams (10) of the transfer structure; A traction rod (70), the second end of the connecting rod (60) being rotatably connected to the traction rod (70).

13. The transfer device according to claim 12, characterized in that: The transfer device further comprises a ball stud, and one end of the traction rod (70) facing the cross beam (10) has an end portion, the ball stud is connected to the end portion, and the connecting rod (60) and the traction rod (70) are rotatably connected via the ball stud.

14. An aircraft, characterized in that: The aircraft include: A landing gear (80), the landing gear (80) comprising at least two support rods (810) spaced apart along a first direction, the length of the support rods (810) extending along a second direction; In the transfer device described in any one of claims 11 to 13, both ends of the crossbeam (10) of the transfer structure of the transfer device are respectively connected to the two support rods (810).

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