Aircraft ground towing trailer

Abstract

The present application relates to the technical field of aircrafts, and discloses an aircraft ground towing trailer. The aircraft ground towing trailer of the present application is used for lifting and towing an aircraft, and comprises a towing portion and a frame portion capable of moving horizontally and up and down by means of the towing portion. The frame portion can enter and exit an area below the aircraft under the action of the towing portion, and a plurality of connecting devices on two sides of the frame portion can individually move close to and connect to a landing gear of the aircraft. The aircraft ground towing trailer of the present application can conveniently enter the area below the aircraft, especially in the case where the ground area is uneven, the landing gear of the aircraft is supported and connected by means of the movable connecting devices, so as to complete the towing work of the aircraft.

Description

Aircraft ground towing trailer Technical Field

[0001] This application relates to the field of aircraft technology, and more particularly to an aircraft ground traction trailer. Background Technology

[0002] The existing aircraft towing trailers need to be pushed under the aircraft. When the ground where the aircraft is located is not flat enough, the landing gear of the aircraft is at different heights from the ground, and the towing trailer cannot easily align and connect its multiple fixing devices to the aircraft, which causes a lot of trouble. Summary of the Invention

[0003] The purpose of this application is to provide a ground towing trailer for an aircraft. This ground towing trailer can easily enter the area below the aircraft, especially in situations where the ground is uneven. It supports and connects to the aircraft's landing gear through a movable connecting device to complete the towing work of the aircraft.

[0004] To solve the above-mentioned technical problems, this application provides a ground towing trailer for an aircraft, including: a towing unit and a frame unit that can move horizontally and vertically through the towing unit; the frame unit can enter and exit the area below the aircraft under the action of the towing unit, and multiple connecting devices on both sides of the frame unit can move closer to and connect to the landing gear of the aircraft respectively.

[0005] Optionally, the connecting device includes a telescopic part and a connecting support part. The connecting support part includes a gripper part and a sleeve part that are connected to each other. The gripper part is connected to the frame part and can move in the vertical direction. The sleeve part is circumferentially mounted on the landing gear of the aircraft.

[0006] Optionally, the gripper and the sleeve are detachably connected.

[0007] Optionally, the gripper has multiple protruding hooks on the inner side of the gripper, and the sleeve has multiple through holes corresponding to the protruding hooks on both sides. The gripper can clamp the two sides of the sleeve and insert the protruding hooks into the corresponding through holes to form a fixed connection.

[0008] Optionally, the gripper includes a clamping part and a connecting part, the clamping part being used to clamp and connect the sleeve part, and the connecting part being connected to the frame part.

[0009] Optionally, the clamping part includes a first clamping part and a second clamping part, with one end of the first clamping part and the second clamping part rotatably connected, and the other end approaching or moving away from each other to form a clamping structure.

[0010] Optionally, the sleeve portion includes a top support portion and a ring sleeve portion for forming the sleeve portion into a ring shape, wherein the top of the protruding hook portion abuts against the support portion when it is inserted into the corresponding through hole.

[0011] Optionally, the protruding hook portion is also provided on a boss in the vertical direction. The boss, the protruding hook portion, and the gripper portion form a groove around each other. When the protruding hook portion is inserted into the corresponding through hole, the ring portion enters the groove to prevent the gripper portion from coming out of the sleeve portion.

[0012] Optionally, the telescopic member can move away from or near the landing gear of the aircraft, and can rotate around the frame portion to adjust the position of the connecting support portion so that it can be fitted onto the landing gear of the aircraft.

[0013] Optionally, the telescopic member includes a first telescopic part and a second telescopic part, wherein the first telescopic part can move away from or towards the frame part, and the first telescopic part can rotate horizontally relative to the second telescopic part.

[0014] The ground towing trailer for the aircraft described in this application can easily enter the area below the aircraft, especially in situations where the ground is uneven. It can support and connect to the aircraft's landing gear through a movable connecting device to complete the towing work of the aircraft. Attached Figure Description

[0015] Figure 1 shows a schematic diagram of the structure of the ground towing trailer of the aircraft before it enters the area below the aircraft according to an embodiment of this application;

[0016] Figure 2 shows a schematic diagram of the structure after the ground towing trailer of the aircraft enters the area below the aircraft according to an embodiment of this application;

[0017] Figure 3 shows a magnified view of a portion of position A in Figure 2;

[0018] Figure 4 shows a schematic diagram of the structure of the ground towing trailer for the aircraft according to an embodiment of this application;

[0019] Figure 5 shows a top view of the ground towing trailer of the aircraft according to an embodiment of this application;

[0020] Figure 6 shows a magnified view of a portion of position B in Figure 4;

[0021] Figure 7 shows a magnified view of position C in Figure 4.

[0022] Figure 8 shows a magnified view of another angle from position B in Figure 4;

[0023] Figure 9 shows a schematic diagram of the separated state of the gripper and the sleeve in an embodiment of this application;

[0024] Figure 10 shows a schematic diagram of the gripper and sleeve in an embodiment of this application;

[0025] Figure 11 shows a schematic diagram of the structure of the sleeve part according to an embodiment of this application. Detailed Implementation

[0026] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. This application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0027] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0028] To clearly illustrate this application, devices unrelated to the description are omitted, and the same or similar constituent elements throughout the specification are given the same reference numerals.

[0029] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0030] When we say that a device is "above" another device, this can mean that it is directly above the other device, or it can mean that other devices are present in between. Conversely, when we say that a device is "directly" "above" another device, there are no other devices present in between.

[0031] Although the terms first, second, etc., are used in some instances herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, descriptions such as first interface and second interface, etc. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition occur only when combinations of elements, functions, steps, or operations are inherently mutually exclusive in some way.

[0032] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this application. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in the specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0033] Terms such as "below" and "above" indicating relative space are used to more easily explain the relationship of one device relative to another in the accompanying drawings. These terms refer not only to their meaning as shown in the drawings but also to other meanings or operations of the device in use. For example, if the device in the drawings is flipped, a device previously described as "below" another device may now be described as "above" another device. Therefore, the exemplary term "below" encompasses both above and below. The device may be rotated 90° or other angles, and the terms representing relative space are interpreted accordingly.

[0034] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the content of this present application, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0035] The embodiments of this application are described below with reference to the accompanying drawings. As shown in Figures 1 to 3, the embodiments of this application provide an aircraft ground towing trailer 100, including: a towing part 1 and a frame part 2. The frame part 2 can move horizontally and vertically through the towing part 1. The frame part 2 can enter and exit the area below the aircraft 200 under the action of the towing part 1. Multiple connecting devices 21 on both sides of the frame part 2 can move to approach and connect to the landing gear 201 of the aircraft 200 respectively.

[0036] Specifically, as shown in Figures 4 and 5, four connecting devices 21 are provided on both sides of the frame portion 2. The connecting devices 21 are in a retracted state before the frame portion 2 enters the area below the aircraft 200, so that the frame portion 2 does not interfere with the landing gear 201. After the frame portion 2 enters the area below the aircraft 200, the four connecting devices 21 on both sides can move closer to and connect with the landing gear 201 of the aircraft 200, thereby aligning and connecting the connecting devices 21 with the landing gear 201. In one embodiment, the connecting devices 21 can move closer to and connect with the landing gear 201 of the aircraft 200 along both the horizontal and vertical directions.

[0037] Similarly, when it is necessary to remove the frame portion 2 from the area below the aircraft 200, the connecting device 21 can be retracted close to the frame portion 2. In one embodiment, the connecting device 21 is not limited to the four shown in the figures, but may be six or other numbers. In one embodiment, the connecting device 21 may also be aligned and connected to other possible fixed positions of the aircraft 200, thereby raising the aircraft 200.

[0038] As shown in Figure 6, the connecting device 21 includes a telescopic part 210 and a connecting support part 211. The telescopic part 210 can move away from the frame part 2 and toward the aircraft 200, and can also rotate around the frame part 2. The connecting support part 211 is used to support the landing gear 201 of the connecting aircraft 200.

[0039] Specifically, as shown in Figure 7, the frame portion 2 has an inner cavity (not shown) that accommodates the telescopic portion 210. The telescopic portion 210 can enter or extend into the inner cavity of the frame portion 2. The frame portion 2 includes a threaded hole communicating with the inner cavity. A threaded member 220 mating with the threaded hole can be rotated into the inner cavity to hold the telescopic portion 210, thereby fixing the telescopic portion 210; or, the threaded member can be rotated out of the inner cavity to release the telescopic portion 210, thereby allowing the telescopic portion 210 to move, thus causing the connecting device 21 to move horizontally. Further, the telescopic portion 210 includes a first telescopic portion 210a and a second telescopic portion 210b. The second telescopic portion 210b can rotate horizontally relative to the first telescopic portion 210a, thereby allowing for fine-tuning of the angle of the second telescopic portion 210b to align and fix the landing gear 201 without moving the frame portion 2.

[0040] Furthermore, as shown in FIG8, the connecting support 211 includes a gripper 211a and a sleeve 211b connected to each other. The gripper 211a passes through and connects to the telescopic part 210, and the sleeve 211b can be pre-installed around the landing gear 201 of the aircraft 200.

[0041] As shown in Figure 9, the gripper part 211a and the sleeve part 211b are detachably connected. The gripper part 211a includes a clamping part 211aa and a connecting part 211ab. The clamping part 211aa is connected to the sleeve part 211b.

[0042] As shown in Figure 10, the clamping part 211aa includes a first clamping part 2111aa and a second clamping part 2112aa. One end of the first clamping part 2111aa and the second clamping part 2112aa are rotatably connected, and the other ends are close to or far from each other to form a clamping structure. Multiple protruding hooks 212a are provided on the inner sides of the opposing grippers of the gripper part 211a to facilitate clamping the sleeve part 211b. As shown in Figure 11, both sides of the sleeve part 211b include multiple through holes 212b corresponding one-to-one with the protruding hooks 212a. The clamping part 211aa can clamp both sides of the sleeve part 211b and insert the protruding hooks 212a into the corresponding through holes 212b, thereby forming a fixed connection. The sleeve portion 211b includes a top support portion 211ba and a ring-shaped sleeve portion 211bb for forming the sleeve portion 211b into a ring shape. When the protruding hook portion 212a is inserted into the corresponding through hole 212b, its top abuts against the support portion 211ba. The through hole 212b is preferably located at the upper part of the sleeve portion 211b, away from the ground. In practice, the ground is rarely perfectly flat, often resulting in no effective gap between the landing gear 201 and the ground, making it difficult for the connecting support portion 211 to grip the landing gear 201. In this embodiment, the connection position between the gripper portion 211a and the sleeve portion 211b is within the height range of the landing gear 201, i.e., away from the ground, which allows the gripper portion 211a to be more easily installed onto the sleeve portion 211b from both sides, regardless of whether there is a gap between the landing gear 201 and the ground.

[0043] In one embodiment, as shown in FIG10, the protruding hook portion 212a is also provided on the boss 213a in the vertical direction. The boss 213a, the protruding hook portion 212a, and the gripper portion 211a form a groove 214a. When the hook portion 212a is inserted into the corresponding through hole 212b, the annular portion 211bb enters the groove 214a to further prevent the gripper portion 211a from falling out of the sleeve portion 211b.

[0044] The connecting part 211ab passes through the connecting telescopic part 210. The telescopic part 210 has a nut (not shown in the figure) on the other side away from the gripper part 211a. By rotating the nut, the height of the connecting part 211ab can be adjusted, that is, the height of the gripper part 211a can be adjusted, so that it can move up and down to align with the connecting landing gear 201. Then, the frame part 2 along with multiple connecting devices 21 is lifted by the traction part 1. At the same time, the support wheel at the tail of the towing trailer 100 can also be lifted accordingly, so as to tow the transport aircraft 200.

[0045] Applying for a ground towing trailer allows for easy access to the area beneath the aircraft, especially in uneven terrain. The trailer can be connected to the aircraft's landing gear via a movable connecting device to complete the towing operation.

[0046] Furthermore, as shown in Figure 8, each connecting device 21 is also equipped with a pressure measuring device 22. The connecting support 211 is located below the telescopic part 210, passing through the telescopic part 210 and connecting to the pressure measuring device 22. The pressure measuring device 22 is located on the side of the telescopic part 210 away from the connecting support 211. When the connecting device 21 is connected to the landing gear 201, the connecting device 21 uses the pressure measuring device 22 to measure the pressure of the landing gear 201. There are four pressure measuring devices 22, symmetrically arranged on both sides of the frame part 2. The four pressure measuring devices 22 are connected to the control system and are used to calculate the center of gravity position of the aircraft based on the pressure values ​​of the four pressure measuring devices 22, thereby determining whether it meets the flight conditions, without the need for a large amount of manual labor to move the aircraft to the electronic scale for weighing.

[0047] The above embodiments are merely illustrative of the principles and effects of this application. Any person skilled in the art can modify or alter the above embodiments without departing from the purpose of this application. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the purpose disclosed in this application should still be covered by the claims of this application.

Claims

1. A ground towing trailer for lifting and towing an aircraft (200), characterized in that, include: The traction unit (1) and the frame unit (2) can move horizontally and vertically through the traction unit (1); the frame unit (2) can enter and exit the area below the aircraft (200) under the action of the traction unit (1), and multiple connecting devices (21) on both sides of the frame unit (2) can move closer to and connect to the landing gear (201) of the aircraft (200).

2. The aircraft ground towing trailer according to claim 1, characterized in that, The connecting device (21) includes a telescopic part (210) and a connecting support part (211). The connecting support part (211) includes a gripper part (211a) and a sleeve part (211b) connected to each other. The gripper part (211a) is connected to the frame part (2) and can move in the vertical direction. The sleeve part (211b) is arranged around the landing gear (201) of the aircraft (200).

3. The aircraft ground towing trailer according to claim 2, characterized in that, The gripper (211a) and the sleeve (211b) are detachably connected.

4. The aircraft ground tow doll' of claim 2, wherein, The gripper (211a) has multiple protruding hooks (212a) on its inner side opposite to each other. The sleeve (211b) has multiple through holes (212b) on both sides that correspond one-to-one with the protruding hooks (212a). The gripper (211a) can clamp the two sides of the sleeve (211b) and insert the protruding hooks (212a) into the corresponding through holes (212b) to form a fixed connection.

5. The aircraft ground towing trailer according to claim 2, characterized in that, The gripper (211a) includes a clamping part (211aa) and a connecting part (211ab). The clamping part (211aa) is used to clamp and connect the sleeve part (211b), and the connecting part (211ab) connects the frame part (2).

6. The aircraft ground tow doll' of claim 5, wherein, The clamping part (211aa) includes a first clamping part (2111aa) and a second clamping part (2112aa). One end of the first clamping part (2111aa) and the second clamping part (2112aa) are rotatably connected, and the other end is close to or far from each other to form a clamping structure.

7. The aircraft ground towing trailer according to claim 4, characterized in that, The sleeve portion (211b) includes a top support portion (211ba) and a ring sleeve portion (211bb) for forming the sleeve portion (211b) into a ring shape. When the protruding hook portion (212a) is inserted into the corresponding through hole (212b), the top abuts against the support portion (211ba).

8. The aircraft ground towing trailer according to claim 7, characterized in that, The protruding hook (212a) is also provided on the boss (213a) in the vertical direction. The boss (213a), the protruding hook (212a) and the gripper (211a) surround to form a groove (214a). When the protruding hook (212a) is inserted into the corresponding through hole (212b), the ring part (211bb) enters the groove (214a) to prevent the gripper (211a) from coming out of the sleeve part (211b).

9. The aircraft ground towing trailer according to claim 2, characterized in that, The telescopic member (210) can move away from or near the landing gear (201) of the aircraft (200), and can rotate around the frame part (2) to adjust the position of the connecting support part (211) so that it can be fitted onto the landing gear (201) of the aircraft (200).

10. The aircraft ground towing trailer according to claim 2, characterized in that, The telescopic member (210) includes a first telescopic part (210a) and a second telescopic part (210b). The first telescopic part (210a) can move away from or closer to the frame part (2), and the first telescopic part (210a) can rotate horizontally relative to the second telescopic part (210b).

Images