Draw bar structure for unmanned aerial vehicle

By introducing a groove guide design for the positioning structure into the drone tow rod structure, the problem of difficult pin installation when connecting the tow rod and landing gear of medium and large drones is solved, improving installation efficiency and ease of operation.

CN224241271UActive Publication Date: 2026-05-15CAIHONG DRONE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CAIHONG DRONE TECH CO LTD
Filing Date
2025-05-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

When connecting the tow bar of a medium-to-large-sized drone to its landing gear, the pin installation is difficult and the installation efficiency is low.

Method used

Design a tow rod structure for drones, including a first connecting part and a positioning structure at one end of the tow rod body. The positioning structure guides and positions the first pin hole and the second pin hole coaxially, simplifying the pin installation process.

Benefits of technology

It improved the installation efficiency of the tow bar, simplified the operation for ground staff, and reduced the installation difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a draw bar structure for an unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicle traction, the draw bar structure comprises a draw bar body, one end of the draw bar body is provided with a first connecting part, and the first connecting part is used for being connected with a second connecting part on an unmanned aerial vehicle undercarriage through a first bolt; one end of the positioning structure is fixedly connected with one end of the traction rod body, the other end of the positioning structure is provided with a groove making contact with the second connecting part, and when part of the second connecting part is embedded into the groove and makes contact with the positioning structure, the first plug pin hole in the first connecting part and the second plug pin hole in the second connecting part can be coaxial; the problems that in the prior art, when a traction rod is connected with an undercarriage of an unmanned aerial vehicle, bolts are difficult to install, and the installation efficiency is low are solved.
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Description

Technical Field

[0001] This utility model belongs to the field of drone towing technology, and more specifically, relates to a towing rod structure for drones. Background Technology

[0002] Medium and large drones require a tow bar to change their direction of movement when not in operation. These drones are heavy, necessitating strong and heavy tow bars. Domestically and internationally, medium and large drones and tow bars typically use pins to connect their interface holes. Due to the weight of the tow bar and the high precision required for the joint hole alignment, pin installation is difficult, usually requiring two to three ground crew members to complete. To improve tow bar installation efficiency and simplify the operation for ground crew, it is necessary to design an easy-to-install tow bar. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a tow bar structure for unmanned aerial vehicles (UAVs), thus solving the problems of difficult pin installation and low installation efficiency when connecting the tow bar to the UAV's landing gear.

[0004] To achieve the above objectives, this utility model provides a tow bar structure for unmanned aerial vehicles (UAVs), comprising:

[0005] The tow bar body has a first connecting part at one end, which is used to connect to a second connecting part on the UAV landing gear via a first pin.

[0006] The positioning structure has one end fixedly connected to one end of the traction rod body, and the other end of the positioning structure is provided with a groove that contacts the second connecting part. When part of the second connecting part is embedded in the groove and contacts the positioning structure, the first pin hole on the first connecting part and the second pin hole on the second connecting part are coaxial.

[0007] Optionally, the traction rod body is a telescopic rod.

[0008] Optionally, the tow bar body includes a front section and a rear section, the rear section being slidably inserted inside the front section and being able to be positioned and connected to the front section via a second pin.

[0009] Optionally, the first connecting part is disposed at one end of the front section, the other end of the front section is provided with a third pin hole, and the two ends of the rear section are respectively provided with a fourth pin hole and a fifth pin hole that can cooperate with the third pin hole.

[0010] Optionally, a handle is provided at the other end of the traction rod body.

[0011] Optionally, the first connecting portion and the second connecting portion are respectively a first connecting ear and a second connecting ear, and the outer ends of the first connecting ear and the second connecting ear are both arc-shaped.

[0012] Optionally, there are two second connecting ear pieces, and the first connecting ear piece can be inserted between the two second connecting ear pieces.

[0013] Optionally, two positioning structures are provided, with the two positioning structures respectively disposed on both sides of the first connecting ear piece, and each positioning structure cooperating with one of the second connecting ear pieces.

[0014] Optionally, the positioning structure includes a head and a tail. The groove is provided at one end of the head, and a positioning plane is provided at the other end of the head. The positioning plane is in contact with the end face of one end of the traction rod body. The tail extends from the other end of the head in a direction away from the groove, and the tail is detachably connected to one end of the traction rod body.

[0015] Optionally, the tail is provided with a through hole, and the tail is connected to one end of the traction rod body by a threaded fastener passing through the through hole.

[0016] This utility model provides a tow bar structure for unmanned aerial vehicles (UAVs). Its advantages are as follows: the tow bar structure for UAVs has a first connecting part and a positioning structure at one end of the tow bar body. The first connecting part enables a pin-type connection with the second connecting part of the UAV landing gear. Simultaneously, during the insertion of the first pin, the positioning structure allows a portion of the second connecting part to embed into the groove of the positioning structure and contact it, serving a guiding and positioning function. This ensures that the first pin hole of the first connecting part and the second pin hole of the second connecting part are coaxially aligned, facilitating the insertion of the first pin, simplifying the installation difficulty of the first pin, and improving the installation efficiency of the tow bar.

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

[0018] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0019] Figure 1 A general schematic diagram of a tow bar structure for an unmanned aerial vehicle according to an embodiment of the present invention is shown.

[0020] Figure 2 A partially enlarged schematic diagram of a tow bar structure for an unmanned aerial vehicle according to an embodiment of the present invention is shown.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First connecting part; 2. First pin; 3. UAV landing gear; 4. Second connecting part; 5. Positioning structure; 6. Groove; 7. Front section; 8. Rear section; 9. Second pin; 10. Fifth pin hole; 11. Handle; 12. Head; 13. Tail; 14. Positioning plane; 15. Threaded fastener. Detailed Implementation

[0023] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0024] like Figure 1 and Figure 2 As shown, this utility model provides a tow bar structure for unmanned aerial vehicles, comprising:

[0025] The tow bar body has a first connecting part 1 at one end, which is used to connect to the second connecting part 4 on the UAV landing gear 3 via a first pin 2.

[0026] The positioning structure 5 has one end fixedly connected to one end of the traction rod body, and the other end of the positioning structure 5 is provided with a groove 6 that contacts the second connecting part 4. When part of the second connecting part 4 is embedded in the groove 6 and contacts the positioning structure 5, the first pin 2 hole on the first connecting part 1 and the second pin 9 hole on the second connecting part 4 can be coaxial.

[0027] Specifically, to address the problems of difficult pin installation and low installation efficiency when connecting the tow bar to the landing gear of a drone in the prior art, the tow bar structure for drones provided by this utility model has a first connecting part 1 and a positioning structure 5 at one end of the tow bar body. The first connecting part 1 realizes a pin-type connection with the second connecting part 4 of the drone landing gear 3. At the same time, during the pin insertion process of the first pin 2, the positioning structure 5 makes part of the second connecting part 4 embedded in the groove 6 of the positioning structure 5 and in contact with the positioning structure 5, which plays a guiding and positioning role. This makes the first pin 2 hole of the first connecting part 1 and the second pin 9 hole of the second connecting part 4 coaxially aligned, which facilitates the insertion of the first pin 2, simplifies the installation difficulty of the first pin 2, and improves the installation efficiency of the tow bar.

[0028] Optionally, the tow bar body is a telescopic bar.

[0029] Specifically, the tow bar body adopts a telescopic rod body, which makes it easy to extend and adjust its length, and also makes it easy to store and transport.

[0030] Optionally, the tow bar body includes a front section 7 and a rear section 8, the rear section 8 being slidably inserted inside the front section 7 and being able to be positioned and connected to the front section 7 via a second pin 9.

[0031] Specifically, the front section 7 can be a hollow rod, and the rear section 8 is slidably inserted into the front section 7. When it needs to be extended, the rear section 8 can be pulled out, and the second pin 9 can pass through the front section 7 and the rear section 8 to achieve positioning between them.

[0032] In this embodiment, the first pin 2 and the second pin 9 can be big-headed pins, pins with holes, etc.

[0033] Optionally, the first connecting part 1 is provided at one end of the front section 7, the other end of the front section 7 is provided with a third pin hole, and the two ends of the rear section 8 are respectively provided with a fourth pin hole and a fifth pin hole 10 that can cooperate with the third pin hole.

[0034] Specifically, the third pin hole engages with the fourth pin hole when the traction rod body is in the extended state, and the third pin hole engages with the fifth pin hole 10 when the traction rod body is in the shortened state.

[0035] Optionally, a handle 11 is provided at the other end of the tow bar body.

[0036] Specifically, the handle 11 can be set as a rod-shaped structure with its axis perpendicular to the axis of the traction rod body. The handle 11 is designed for gripping and facilitates traction.

[0037] Optionally, the first connecting part 1 and the second connecting part 4 are respectively the first connecting ear and the second connecting ear, and the outer ends of the first connecting ear and the second connecting ear are both arc-shaped.

[0038] Specifically, both the first and second connecting ear pieces are conventional arc-shaped ear pieces that bulge outwards, making them easy to process.

[0039] Optionally, there are two second connecting ears, and the first connecting ear can be inserted between the two second connecting ears.

[0040] Specifically, the two second connecting lugs on the drone landing gear 3 form a U-shaped connecting lug, and a first connecting lug at the end of the tow bar body is inserted between the two second connecting lugs when connected to the drone landing gear 3, thereby improving the stability of the connection.

[0041] Optionally, two positioning structures 5 are provided, with the two positioning structures 5 respectively located on both sides of the first connecting ear piece, and each positioning structure 5 cooperating with a second connecting ear piece.

[0042] Specifically, the two positioning structures 5 cooperate with the two second connecting ear pieces to assist in positioning and improve the stability and accuracy of positioning.

[0043] Optionally, the positioning structure 5 includes a head 12 and a tail 13. A groove 6 is provided at one end of the head 12, and a positioning plane 14 is provided at the other end of the head 12. The positioning plane 14 is in contact with the end face of one end of the traction rod body. The tail 13 extends from the other end of the head 12 in a direction away from the groove 6, and the tail 13 is detachably connected to one end of the traction rod body.

[0044] Specifically, such as Figure 2 As shown, the head 12 is roughly arc-shaped, and the end of the head 12 near the tail 13 has a positioning plane 14. The positioning structure 5 is installed by connecting the tail 13 to the traction rod body. During installation, the positioning plane 14 fits against the end face of the front section 7 of the traction rod body to prevent the positioning structure 5 from rotating and shifting.

[0045] In this embodiment, the arc shape of the bottom of the groove 6 on the head 12 matches the arc shape of the outer end of the second connecting ear.

[0046] Furthermore, in order to ensure that the positioning structure 5 and the second connecting ear have a certain angular range of applicability in their positioning states, the central angle of the bottom arc of the groove 6 can be smaller than the central angle of the outer arc of the second connecting ear.

[0047] Optionally, the tail section 13 is provided with a through hole, and the tail section 13 is connected to one end of the traction rod body by a threaded fastener 15 passing through the through hole.

[0048] Specifically, the tail 13 can be installed on the outside of one end of the traction rod body using threaded fasteners 15 such as screws or bolts, which is convenient to install and has low material costs.

[0049] In summary, when using the tow bar structure for drones provided by this utility model, taking its connection with the second connecting lug on the drone landing gear 3 as an example:

[0050] 1. Pull the rear section 8 of the tow bar body out of the front section 7 and fix it with the second pin 9;

[0051] 2. Secure the two positioning structures 5 to the front section 7 with bolts;

[0052] 3. Align the tow bar body with the second connecting lug on the landing gear, so that the positioning module fits into the second connecting lug, and align the first pin 2 hole with the second pin 9 hole;

[0053] 4. Insert the first pin 2 to connect the drone landing gear 3 to the tow bar body.

[0054] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A tow bar structure for an unmanned aerial vehicle (UAV), characterized in that, include: The tow bar body has a first connecting part at one end, which is used to connect to a second connecting part on the UAV landing gear via a first pin. The positioning structure has one end fixedly connected to one end of the traction rod body, and the other end of the positioning structure is provided with a groove that contacts the second connecting part. When part of the second connecting part is embedded in the groove and contacts the positioning structure, the first pin hole on the first connecting part and the second pin hole on the second connecting part are coaxial.

2. The tow bar structure for a drone according to claim 1, characterized in that, The traction rod body is a telescopic rod.

3. The tow bar structure for a drone according to claim 2, characterized in that, The traction rod body includes a front section and a rear section. The rear section is slidably inserted inside the front section and can be positioned and connected to the front section by a second pin.

4. The tow bar structure for a drone according to claim 3, characterized in that, The first connecting part is disposed at one end of the front section, and a third pin hole is provided at the other end of the front section. A fourth pin hole and a fifth pin hole that can cooperate with the third pin hole are respectively provided at both ends of the rear section.

5. The tow bar structure for a drone according to claim 1, characterized in that, A handle is provided at the other end of the traction rod body.

6. The tow bar structure for a drone according to claim 1, characterized in that, The first connecting portion and the second connecting portion are respectively the first connecting ear and the second connecting ear, and the outer ends of the first connecting ear and the second connecting ear are both arc-shaped.

7. The tow bar structure for a drone according to claim 6, characterized in that, There are two second connecting ear pieces, and the first connecting ear piece can be inserted between the two second connecting ear pieces.

8. The tow bar structure for a drone according to claim 7, characterized in that, Two positioning structures are provided, and the two positioning structures are respectively located on both sides of the first connecting ear piece. Each positioning structure cooperates with one of the second connecting ear pieces.

9. The tow bar structure for a drone according to claim 1, characterized in that, The positioning structure includes a head and a tail. The groove is provided at one end of the head, and the other end of the head is provided with a positioning plane. The positioning plane is in contact with the end face of one end of the traction rod body. The tail extends from the other end of the head in a direction away from the groove, and the tail is detachably connected to one end of the traction rod body.

10. The tow bar structure for a drone according to claim 9, characterized in that, The tail section is provided with a through hole, and the tail section is connected to one end of the traction rod body by a threaded fastener passing through the through hole.