Quick-release self-locking unmanned aerial vehicle folding machine arm joint connecting mechanism

Abstract

The utility model relates to an unmanned plane technical field discloses a quick detach self -locking unmanned plane folding machine arm joint connecting mechanism, including the outer pipe arm, one end of outer pipe arm is connected with the inner pipe arm through the folder, and is connected with the fixing spare through the internal thread bush in the other end of outer pipe arm, the one end of inner pipe arm is connected with the connecting sleeve, and in the one end of connecting sleeve fixedly connected with motor seat is penetrated, the inner pipe arm and connecting sleeve are fixedly connected through hand screw bolt three between, the outer diameter of inner pipe arm and the inner diameter of outer pipe arm match, the folder includes mounting frame no.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a quick-release self-locking UAV folding arm joint connection mechanism. Background Technology

[0002] The drone arm is an indispensable part of the drone's structure. As the main skeleton of the drone, it directly affects the stability of flight. The arm usually houses core components such as motors and propellers, which are the power source for the drone's flight. Therefore, the strength and stability of the arm are directly related to the operating status of these devices. For some larger drones, such as agricultural drones and firefighting drones, the arm needs to be designed to be foldable for easy transportation.

[0003] A Chinese patent discloses a foldable arm and drone (authorization announcement number CN205872438U). The patented technology includes: a fixed end for fixed connection with the drone body; a folding end, one end of which is hinged to the fixed end; and an arm body disposed on the other end of the folding end for controlling the drone's flight. A tightening sleeve is provided on the arm body for fixed connection with the fixed end, so that the tightening sleeve is fitted between the folding end and the fixed end. The arm can be folded, allowing the unfolded arm to be folded and integrated with the drone, minimizing the space occupied by the drone and making it more convenient to carry. However, its folding range is limited, and its length cannot be adjusted. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles (UAVs) to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles includes an outer tube arm. One end of the outer tube arm is connected to an inner tube arm via a folding component, and the other end of the outer tube arm is connected to a fixing component via an internally threaded sleeve. One end of the inner tube arm is fitted with a connecting sleeve, and a motor mount is fixedly connected through one end of the connecting sleeve. The inner tube arm and the connecting sleeve are fixedly connected by a hand-tightened bolt. Both the inner and outer tube arms have several through holes. The outer diameter of the inner tube arm matches the inner diameter of the outer tube arm. The folding component... The system includes a mounting bracket 1 and a mounting bracket 2 that matches the mounting bracket 1. One end of the mounting bracket 2 is fixedly connected to an inner shaft lug, and a guide post is slidably connected through the other end of the mounting bracket 2. A spring is sleeved on the guide post on the outside of the mounting bracket 2, and a set of limiting posts is fixedly connected on the guide post on the inside of the mounting bracket 2. The rear end of the mounting bracket 1 is fixedly connected to a set of outer shaft lugs, and a set of buckles is fixedly connected to the front side of one end of the mounting bracket 1. The inner shaft lug and the set of outer shaft lugs are rotatably connected through a connecting shaft.

[0007] As a further improvement of this utility model: a strip-shaped hole is provided on one side of both the upper and lower ends of the mounting bracket 2, and the limiting post is slidably connected to the corresponding strip-shaped hole.

[0008] As a further embodiment of this utility model: the rear end of the second mounting bracket is connected to a first pipe head, the inner pipe arm passes through the inner side of the first pipe head, and the inner pipe arm and the first pipe head are fixedly connected by a first hand-tightened bolt; one end of the first mounting bracket is connected to a second pipe head, the outer pipe arm passes through the inner side of the second pipe head, and the outer pipe arm and the second pipe head are fixedly connected by a second hand-tightened bolt.

[0009] As a further embodiment of this utility model: a limiting ring is fixedly connected to the outer side of the outer tube arm inside the inner threaded sleeve, and a rotating head is fixedly connected to one end of the outer tube arm near the limiting ring. A shaft hole is provided through the middle of the inner side of the rotating head, and a spring post and a positioning hole are respectively provided at the upper and lower ends of the rotating head near the shaft hole.

[0010] As a further embodiment of this utility model: the fixing member includes a fixing rod, one end of the fixing rod is provided with a set of locking blocks, and a flange is fixedly connected to the other end of the fixing rod. An external threaded groove is opened on the outer side of the fixing rod. A rotating shaft is provided through the set of locking blocks, and a positioning hole and a spring post are provided on the inner side of each locking block near the front and rear ends of the rotating shaft.

[0011] As a further embodiment of this utility model: a set of the aforementioned locking blocks are engaged on the outside of the rotating head, and the rotating shaft passes through the inside of the shaft hole, and the locking blocks and the rotating head are rotatably connected through the rotating shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model uses a folding component to both store the inner tube arm inside the outer tube arm and to fold the inner and outer tube arms together. The fixing component and the internal threaded sleeve allow the outer and inner tube arms to be folded onto the machine body, reducing their space occupation and improving transportability. It also features reliable connection, easy operation, and high safety. Attached Figure Description

[0014] Figure 1 A schematic diagram of a quick-release self-locking folding arm joint connection mechanism for a drone.

[0015] Figure 2 This is a schematic diagram of the folding component in a quick-release self-locking folding arm joint connection mechanism for a drone.

[0016] Figure 3 This is a partial structural diagram of the outer tube arm in a quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles.

[0017] Figure 4 This is a schematic diagram of the fixing component in a quick-release self-locking folding arm joint connection mechanism for a drone.

[0018] Figure 5 This is a partial structural diagram of the outer tube arm and the fixing component in a quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles.

[0019] In the diagram: 1. Outer tube arm; 11. Rotating head; 12. Spring post one; 13. Shaft hole; 14. Positioning hole one; 15. Limiting ring; 2. Fixing component; 21. Fixing rod; 22. Flange; 23. External thread groove; 24. Rotating shaft; 25. Spring post two; 26. Clamping block; 27. Positioning hole two; 3. Internal threaded sleeve; 4. Folding component; 41. Mounting bracket one; 42. Outer shaft lug; 43. Inner shaft lug; 44. Mounting bracket two; 45. Strip hole; 46. Limiting post; 47. Guide post; 48. Spring; 49. Hand-tightening bolt one; 410. Tube head one; 411. Connecting shaft; 412. Tube head two; 413. Hand-tightening bolt two; 414. Buckle; 5. Inner tube arm; 6. Connecting sleeve; 7. Motor base; 8. Hand-tightening bolt three; 9. Through hole. Detailed Implementation

[0020] Please see Figures 1-5In this embodiment of the present invention, a quick-release self-locking folding arm joint connection mechanism for a drone includes an outer tube arm 1. One end of the outer tube arm 1 is connected to an inner tube arm 5 via a folding member 4, and the other end of the outer tube arm 1 is connected to a fixing member 2 via an internal threaded sleeve 3. One end of the inner tube arm 5 is fitted with a connecting sleeve 6, and a motor seat 7 is fixedly connected through one end of the connecting sleeve 6. The inner tube arm 5 and the connecting sleeve 6 are fixedly connected by a three-hand-tightened bolt 8. Both the inner tube arm 5 and the outer tube arm 1 have several through holes 9. After unscrewing the three-hand-tightened bolt 8 counterclockwise, the connecting sleeve 6 and the motor seat 7 can be removed from the inner tube arm 5. The outer diameter of the inner tube arm 5 matches the inner diameter of the outer tube arm 1, so that the inner tube arm 5 can be stored inside the outer tube arm 1.

[0021] exist Figure 1 and Figure 2In the folding component 4, there are mounting bracket 1 41 and mounting bracket 2 44 that matches mounting bracket 1 41. One end of mounting bracket 2 44 is fixedly connected to an inner shaft lug 43, and a guide post 47 is slidably connected through the other end of mounting bracket 2 44. A spring 48 is sleeved on the guide post 47 on the outside of mounting bracket 2 44, and a set of limiting posts 46 is fixedly connected on the guide post 47 on the inside of mounting bracket 2 44. A set of outer shaft lugs 42 are fixedly connected to the rear end of mounting bracket 1 41, and a set of buckles 414 are fixedly connected to the front side of one end of mounting bracket 1 41. The inner shaft lug 43 and the set of outer shaft lugs 42 are connected to the inner shaft lug 43 and the outer shaft lug 44. Ear 42 is rotatably connected via connecting shaft 411. When mounting bracket 1 41 is rotated along connecting shaft 411, it is necessary to merge mounting bracket 1 41 with mounting bracket 2 44. When buckle 414 reaches the position of limit post 46, it pushes the limit post 46, causing guide post 47 to slide to one side and compress spring 48. After buckle 414 is engaged with the corresponding limit post 46, spring 48 returns to its original position, and limit post 46 is securely engaged with buckle 414, thus fixing mounting bracket 1 41 and mounting bracket 2 44 together. When guide post 47 is pressed by hand, spring 48 is compressed and deformed, causing limit post 46 to move to one side. At this point, the limiting post 46 disengages from the buckle 414, allowing the mounting bracket 1 41 to separate from the mounting bracket 2 44. Each end of the mounting bracket 2 44 has a slotted hole 45 on one side. The limiting post 46 slides smoothly into the corresponding slotted hole 45, allowing it to slide smoothly. The rear end of the mounting bracket 2 44 is connected to a tube head 410, with an inner tube arm 5 passing through the inside of the tube head 410. The inner tube arm 5 and the tube head 410 are fixedly connected by a hand-tightened bolt 49. One end of the mounting bracket 1 41 is connected to a tube head 2 412, with an outer tube arm 1 passing through the inside of the tube head 2 412. The outer tube arm 1 and the tube head 2 412 are fixedly connected by the hand-tightening bolt 2 413, which facilitates the removal of the outer tube arm 1 and the inner tube arm 5. After removing the hand-tightening bolt 1 49 and the hand-tightening bolt 2 413 counterclockwise, the inner tube arm 5 can be inserted from the tube head 1 410 into the tube head 2 412 and then stored in the outer tube arm 1. Then, the hand-tightening bolt 1 49 and the hand-tightening bolt 2 413 are inserted into the corresponding through hole 9, which can keep the inner tube arm 5 and the outer tube arm 1 fixed. When the mounting bracket 1 41 and the mounting bracket 2 44 are separated, the inner tube arm 5 and the outer tube arm 1 can be folded to improve the passage of transportation.

[0022] exist Figure 3 and Figure 5 In the middle, the outer tube arm 1 is fixedly connected to the inner threaded sleeve 3 with a limiting ring 15 on the outside. A rotating head 11 is fixedly connected to one end of the outer tube arm 1 near the limiting ring 15. A shaft hole 13 is provided through the middle of the inner side of the rotating head 11. A spring post 12 and a positioning hole 14 are respectively provided at the upper and lower ends of the rotating head 11 near the shaft hole 13.

[0023] exist Figure 3 , Figure 4 and Figure 5 In the process, the fixing component 2 includes a fixing rod 21, one end of which is provided with a set of locking blocks 26, and the other end of the fixing rod 21 is fixedly connected to a flange 22, which is fixedly installed on the fuselage of the drone; the outer side of the fixing rod 21 is provided with an external threaded groove 23, and a rotating shaft 24 is provided through the set of locking blocks 26, and positioning holes 27 and spring posts 25 are provided on the inner side of each locking block 26 near the front and rear ends of the rotating shaft 24. The set of locking blocks 26 is engaged with the outer side of the rotating head 11, and the rotating shaft 24 passes through the inner side of the shaft hole 13. Block 26 is rotatably connected to the rotating head 11 via the rotating shaft 24. When the inner threaded sleeve 3 is tightened on the outer threaded groove 23, the outer tube arm 1 and the fixing part 2 can be securely fixed together. When the inner threaded sleeve 3 is unscrewed from the outer threaded groove 23, the outer tube arm 1 is rotated along the rotating shaft 24, so that the spring post 12 is locked in the positioning hole 27 and the spring post 25 is locked in the corresponding positioning hole 14, so that the outer tube arm 1 and the fixing part 2 can remain relatively stable. This realizes the folding of the outer tube arm 1 and the inner tube arm 5 on the machine body to improve the transport passability.

[0024] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles, comprising an outer tube arm (1), characterized in that, One end of the outer tube arm (1) is connected to the inner tube arm (5) via a folding piece (4), and the other end of the outer tube arm (1) is connected to a fixing piece (2) via an internal threaded sleeve (3). One end of the inner tube arm (5) is fitted with a connecting sleeve (6), and a motor base (7) is fixedly connected through one end of the connecting sleeve (6). The inner tube arm (5) and the connecting sleeve (6) are fixedly connected by a three-hand-tightened bolt (8). Both the inner tube arm (5) and the outer tube arm (1) are provided with several through holes (9). The outer diameter of the inner tube arm (5) matches the inner diameter of the outer tube arm (1). The folding piece (4) includes a mounting bracket (41) and a mounting bracket (41) that matches the mounting bracket (41). Mounting bracket two (44) has an inner shaft lug (43) fixedly connected to one end, and a guide post (47) slidably connected through the other end of the mounting bracket two (44). A spring (48) is sleeved on the guide post (47) on the outside of the mounting bracket two (44), and a set of limiting posts (46) is fixedly connected on the guide post (47) on the inside of the mounting bracket two (44). A set of outer shaft lugs (42) is fixedly connected to the rear end of the mounting bracket one (41), and a set of buckles (414) is fixedly connected to the front side of one end of the mounting bracket one (41). The inner shaft lug (43) and the set of outer shaft lugs (42) are rotatably connected through a connecting shaft (411).

2. The quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The mounting bracket 2 (44) has a strip hole (45) on one side of both the upper and lower ends, and the limiting post (46) is slidably connected to the corresponding strip hole (45).

3. The quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The rear end of the second mounting bracket (44) is connected to the first pipe head (410), the inner pipe arm (5) passes through the inner side of the first pipe head (410), and the inner pipe arm (5) and the first pipe head (410) are fixedly connected by the first hand-tightened bolt (49); one end of the first mounting bracket (41) is connected to the second pipe head (412), the outer pipe arm (1) passes through the inner side of the second pipe head (412), and the outer pipe arm (1) and the second pipe head (412) are fixedly connected by the second hand-tightened bolt (413).

4. The quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The outer tube arm (1) is fixedly connected to the inner threaded sleeve (3) with a limiting ring (15) on the outside. A rotating head (11) is fixedly connected to one end of the outer tube arm (1) near the limiting ring (15). A shaft hole (13) is provided through the middle of the inner side of the rotating head (11). A spring post (12) and a positioning hole (14) are respectively provided at the upper and lower ends of the rotating head (11) near the shaft hole (13).

5. The quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles according to claim 1, characterized in that, The fastener (2) includes a fixing rod (21), one end of which is provided with a set of locking blocks (26), and a flange (22) is fixedly connected to the other end of the fixing rod (21). An external threaded groove (23) is provided on the outer side of the fixing rod (21). A rotating shaft (24) is provided through the set of locking blocks (26), and a positioning hole (27) and a spring post (25) are provided on the inner side of each locking block (26) near the front and rear ends of the rotating shaft (24).

6. The quick-release self-locking folding arm joint connection mechanism for unmanned aerial vehicles according to claim 5, characterized in that, A set of the locking blocks (26) are engaged on the outside of the rotating head (11), and the rotating shaft (24) passes through the inside of the shaft hole (13). The locking blocks (26) and the rotating head (11) are rotatably connected through the rotating shaft (24).

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