Ground towing tractor

Abstract

The present application relates to the technical field of towing tractors, and discloses a ground towing tractor. The ground towing tractor of the present application is used for lifting and towing bulky objects, and comprises a towing portion and a frame portion. The frame portion has one end connected to the towing portion, and the other end provided with a plurality of supporting mechanisms. The supporting mechanisms are electrically driven to move forward / backward and up / down along with the towing portion. In the ground towing tractor of the present application, the rear supporting mechanisms are electrically driven to move forward / backward and up / down along with the towing portion, thereby towing the bulky objects.

Description

Ground traction trailer Technical Field

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

[0002] Existing towing trailers for large objects, such as aircraft, are much longer than those used for general operations. When the height of the trailer's front changes, the rear of the trailer also needs to be adjusted accordingly to keep the aircraft at the same level for towing. Summary of the Invention

[0003] The purpose of this application is to provide a ground towing trailer. The rear support mechanism of this ground towing trailer is electrically driven and can move back and forth and up and down with the towing unit to complete the towing work of the aircraft.

[0004] To solve the above-mentioned technical problems, this application provides a ground towing trailer for lifting and towing large-volume objects, including: a towing unit and a frame unit; one end of the frame unit is connected to the towing unit, and the other end is provided with multiple support mechanisms, which are electrically driven and can move back and forth and up and down with the towing unit.

[0005] Optionally, it also includes a level measuring device. After the traction unit moves up and down, the support mechanism adjusts the corresponding height according to the level measuring device so that the frame unit remains level.

[0006] Optionally, the support mechanism includes a rolling component, an actuating component, and a supporting component, wherein the actuating component can pull the rolling component to undergo vertical displacement under the support of the supporting component.

[0007] Optionally, the rolling component includes a rolling wheel and a connecting rod, the rolling wheel being rotatable around the connecting rod.

[0008] Optionally, the connecting bend includes a first straight rod and a second straight rod connected together, the first straight rod and the second straight rod intersecting at a second position.

[0009] Optionally, the rolling wheel is rotatably connected to the end of the first straight rod away from the second straight rod at a first position.

[0010] Optionally, the support member extends outward from the frame portion to form a support end, and the support end is higher than the frame portion, and the connecting rod is rotatably connected to the support end in a second position.

[0011] Optionally, the end of the second straight rod away from the first straight rod is connected to the actuating component at a third position, and the other end of the actuating component is rotatably connected to the frame portion. When the actuating component pulls the second straight rod, the rolling wheel rotates around the second position, thereby adjusting the height of the support mechanism.

[0012] Optionally, the actuating components include an electro-hydraulic pump and a hydraulic rod.

[0013] Optionally, the rollers may rotate about the second position so as to partially extend beyond the height of the frame portion. Attached Figure Description

[0014] Figure 1 shows a schematic diagram of the structure of the ground towing trailer before it enters the area below the aircraft according to an embodiment of this application;

[0015] Figure 2 shows a schematic diagram of the structure of the ground traction trailer according to an embodiment of this application;

[0016] Figure 3 shows a top view of the ground towing trailer according to an embodiment of this application;

[0017] Figure 4 shows a schematic diagram of the structure after the ground towing trailer enters the area below the aircraft according to an embodiment of this application;

[0018] Figure 5 shows a magnified view of a portion of position A in Figure 2;

[0019] Figure 6 shows a schematic diagram of the support mechanism of the ground traction trailer according to an embodiment of this application;

[0020] Figure 7 shows a magnified view of another angle from position A in Figure 2;

[0021] Figure 8 shows a magnified view of a portion of position B in Figure 4;

[0022] Figure 9 shows a schematic diagram of the structure of the ground traction trailer connection device according to an embodiment of this application;

[0023] Figure 10 shows a structural schematic diagram of the ground traction trailer connection device according to an embodiment of this application from another perspective. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] For the purpose of clearly describing this application, devices that are not relevant to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] The embodiments of this application are described below with reference to the accompanying drawings, as shown in Figures 1 to 4. An embodiment of this application provides a ground towing trailer 100 for lifting and towing large objects. It includes a towing unit 1 and a frame unit 2. One end of the frame unit 2 is connected to the towing unit 1, and the other end is provided with two support mechanisms 3. The support mechanisms 3 are electrically driven and can move back and forth and up and down with the towing unit 1. The frame unit 2 can move horizontally and up and down via the towing unit 1. The frame unit 2 enters and exits the area below the aircraft 200 under the action of the towing unit 1, and moves up and down under the action of the towing unit 1 and the support mechanisms 3. In other embodiments, the number of support mechanisms 3 may also be different. In this embodiment, the large object is an aircraft with a length of at least 5 meters.

[0034] Specifically, as shown in Figures 5 to 7, the support mechanism 3 includes a rolling component 30, an actuating component 31, and a supporting component 32. The actuating component 31 can pull the rolling component 30 to rotate under the support of the supporting component 32, thereby achieving displacement in the height direction. The rolling component 30 includes a rolling wheel 301 and a connecting bent rod 302. The rolling wheel 301 can rotate around the connecting bent rod 302. The connecting bent rod 302 includes a first straight rod 302a and a second straight rod 302b. The first straight rod 302a and the second straight rod 302b intersect at a second position P, and preferably, their intersection angle is greater than 90 degrees. The rolling wheel 301 is rotatably connected to the end of the first straight rod 302a away from the second straight rod 302b at a first position M. The supporting component 32 extends outward from the frame portion 2 to form a supporting end 320, and the supporting end 320 is higher than the frame portion 2, thereby increasing the height direction movement distance of the support mechanism 3. The connecting bent rod 302 is rotatably connected to the supporting end 320 at the second position P. The end of the second straight rod 302b furthest from the first straight rod 302a is connected to the actuating component 31 at the third position N. The first position M, the third position N, and the second position P are not on a straight line, which can increase the vertical movement distance of the support mechanism 3. The other end of the actuating component 31 is rotatably connected to the frame part 2. When the actuating component 31 pulls the second straight rod 302b, the rolling wheel 301 rotates around the second position P, thereby adjusting the height of the support mechanism 3. The height of the rolling wheel 301 can be pulled up to be higher than the height of the frame part 2. For large-sized towing trailers, the mechanical actuation mechanism is time-consuming and labor-intensive, while the electrically driven actuating component 31 achieves a better and faster lifting effect. In the ground towing trailer of this application embodiment, the rear support mechanism is electrically driven and can move back and forth and up and down with the towing unit to complete the towing work of large-volume objects.

[0035] As shown in Figures 2 and 3, this embodiment also includes a level measuring device 4. A control device (not shown) is installed inside the traction unit 1. The traction unit 1 moves up and down, creating a height difference between the front and rear ends of the towing trailer 100. The support mechanism 3 adjusts its height according to the level measuring device 4 to keep the frame part 2 level. The actuating component 31 of the support mechanism 3 includes an electric hydraulic pump 310 and a hydraulic rod 311. The electric hydraulic pump 310 receives instructions from the control device inside the traction unit 1 and adjusts the height accordingly. This ensures that the frame part 2 remains level even on uneven surfaces. In this ground towing trailer, the rear support mechanism is electrically driven and can move forward and backward and up and down with the traction unit to complete the towing work of the aircraft.

[0036] As shown in Figures 4 and 8, multiple connecting devices 21 are provided on both sides of the frame portion 2. These connecting devices 21 can be moved to approach and connect to the landing gear 201 of the aircraft 200. Specifically, four connecting devices 21 are provided on both sides of the frame portion 2. Before the frame portion 2 enters the area below the aircraft 200, the connecting devices 21 are in a retracted state to prevent interference between the frame portion 2 and 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 be moved to approach and connect to 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 be moved to approach and connect to the landing gear 201 of the aircraft 200 in 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.

[0038] As shown in Figures 8 and 9, 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, the frame portion 2 has an inner cavity (not shown in the figure) that accommodates the telescopic portion 210. The telescopic portion 210 can enter or extend into the inner cavity of the frame portion 2, thereby causing the connecting device 21 to move horizontally. As shown in FIG8, the connecting support portion 211 includes a gripper portion 211a and a sleeve portion 211b connected to each other. The gripper portion 211a passes through the connecting telescopic portion 210, and the sleeve portion 211b can be pre-positioned around the landing gear 201 of the aircraft 200. By aligning the fixing device with the connecting aircraft landing gear through the telescopic and rotatable component, the towing operation of the aircraft can be completed without moving the frame portion 2, saving time and effort.

[0040] As shown in Figure 10, the gripper 211a and the sleeve 211b are detachably connected. The gripper 211a includes two pairs of clamping grippers, one end of which is rotatably connected, and the other end is close to or far from each other to form a clamping structure. The end of the gripper 211a away from the clamping grippers is connected to the telescopic part 210. The telescopic part 210 has a nut (not shown in the figure) on the other side away from the gripper 211a. By rotating the nut, the height of the connecting part 211ab can be adjusted, that is, the height of the gripper 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 and multiple connecting devices 21 are 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.

[0041] In practice, the ground is rarely perfectly flat, often resulting in a lack of effective clearance between the landing gear 201 and the ground, making it difficult for the connecting support 211 to grip the landing gear 201. In this embodiment, the connection position between the gripper 211a and the sleeve 211b is within the height range of the landing gear 201, i.e., far from the ground. This allows the gripper 211a to be more easily installed onto the sleeve 211b from both sides, regardless of whether there is a gap between the landing gear 201 and the ground.

[0042] Furthermore, as shown in Figure 9, 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.

[0043] 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 traction trailer for lifting and towing large objects, characterized in that, include: The frame part (2) is connected to the traction part (1) at one end and has multiple support mechanisms (3) at the other end. The support mechanisms (3) are electrically driven and can move back and forth and up and down with the traction part (1).

2. The ground traction trailer according to claim 1, characterized in that, It also includes a horizontal measuring device (4). After the traction part (1) moves up and down, the support mechanism (3) adjusts the corresponding height according to the horizontal measuring device (4) so ​​that the frame part (2) remains horizontal.

3. The ground traction trailer according to claim 1, characterized in that, The support mechanism (3) includes a rolling component (30), an actuating component (31), and a supporting component (32). The actuating component (31) can pull the rolling component (30) to move in the height direction under the support of the supporting component (32).

4. The ground traction trailer according to claim 3, characterized in that, The rolling component (30) includes a rolling wheel (301) and a connecting rod (302), wherein the rolling wheel (301) is rotatable about a first position (M) of the connecting rod (302).

5. The ground traction trailer according to claim 4, characterized in that, The connecting bend (302) includes a first straight rod (302a) and a second straight rod (302b) that are connected, and the first straight rod (302a) and the second straight rod (302b) intersect at a second position (P).

6. The ground traction trailer according to claim 5, characterized in that, The rolling wheel (301) is rotatably connected to the end of the first straight rod (302a) away from the second straight rod (302b) at the first position (M).

7. The ground traction trailer according to claim 5, characterized in that, The support member (32) extends outward from the frame part (2) to form a support end (320) and the support end (320) is higher than the frame part (2). The connecting rod (302) is rotatably connected to the support end (320) at the second position (P).

8. The ground traction trailer according to claim 6, characterized in that, The end of the second straight rod (302b) away from the first straight rod (302a) is connected to the actuating component (31) at the third position (N). The other end of the actuating component (31) is rotatably connected to the frame part (2). When the actuating component (31) pulls the second straight rod (302b), the rolling wheel (301) rotates around the second position (P) to adjust the height of the support mechanism (3).

9. The ground traction trailer according to claim 3, wherein the actuation component (31) comprises an electric hydraulic pump (310) and a hydraulic rod (311).

10. The ground traction trailer according to claim 7, characterized in that, The roller (301) rotates about the second position (P) so that it can partially extend beyond the height of the frame portion (2).

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