Unmanned aerial vehicle with vehicle arm folding mechanism

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle with a vehicle arm folding mechanism, which comprises a plurality of folding vehicle arms mounted on a vehicle body and distributed in a circumferential array, and each folding vehicle arm comprises a fixed vehicle arm fixed on the vehicle body and a movable vehicle arm arranged at one end of the fixed vehicle arm. A rotating assembly used for driving the movable arm to be automatically folded is arranged on the fixed arm and comprises a movable base arranged at one end of the movable arm. The arm folding device can fold arms in a short time, manual intervention is not needed, the operation efficiency is greatly improved, the arm folding device is particularly suitable for rapid deployment or storage, meanwhile, automatic synchronous folding ensures that the folding angle and position of each arm are consistent, human errors in the operation process are reduced, the risk of incomplete folding or dislocation is avoided, and the working efficiency is improved. And it can be ensured that the arms are accurately aligned when folded, the stability and safety of the unmanned aerial vehicle are ensured, and unstable flight caused by folding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV with a folding arm mechanism. Background Technology

[0002] With the development of drone technology, there are many drones with long arms. For these drones, the long arms are usually folded when not in use to save space. However, the foldable arms of current drones usually need to be folded manually one by one, and multiple arms cannot be folded at the same time. This is inconvenient in actual use, affecting the convenience and practicality of the drone. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a drone with an arm folding mechanism, which solves the problem that the existing technology requires manual sequential folding of the arms, which is inconvenient.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a drone with an arm folding mechanism, comprising a plurality of folding arms arranged in a circular array on the body, wherein the folding arms include a fixed arm fixed to the body and a movable arm disposed at one end of the fixed arm. A rotating assembly for driving the movable arm to fold automatically is provided on the fixed arm. The rotating assembly includes a movable seat disposed at one end of the movable arm, a limiting seat rotatably disposed at one end of the movable seat and fixed to the fixed arm, and a rotating shaft rotatably disposed on the limiting seat and fixed to the movable seat via a bearing. A synchronous belt is driven on the rotating shaft via a synchronous pulley. The synchronous belt extends through the fixed arm to its inner side. A first transmission shaft is driven at the top of the synchronous belt and rotates with the inner side of the fixed arm via a bearing. A second transmission shaft is rotatably disposed on the inner side of the fixed arm via a bearing seat.

[0005] Furthermore, the machine body is provided with a drive assembly for driving several rotating components to operate synchronously. The drive assembly includes a transmission gear ring disposed inside the machine body and a driven gear fixed to one end of several transmission shafts and meshing with the transmission gear ring. The bottom of the driven gear is provided with a support plate fixed to the machine body, and an arc-shaped track that slides with the transmission gear ring is fixed on the support plate.

[0006] Furthermore, a micro motor is fixed to the inner side of the machine body, and the output shaft of the micro motor is fixed with a drive gear that meshes with the transmission gear ring.

[0007] Furthermore, one end of the second drive shaft extends into the inner side of the machine body, and a gear set is provided between the first drive shaft and the second drive shaft for transmission.

[0008] Furthermore, the inner side of the fixed arm is provided with power cords at both ends, which are respectively fixed to the movable arm and the body. The fixed arm is also provided with a reset assembly for adjusting the tightness of the power cords. The reset assembly includes a fixed pulley one fixed to one end of the inner side of the movable arm and a fixed pulley two fixed to both ends of the inner side of the fixed arm. The power cords are slidably connected on the fixed pulley one and the fixed pulley two.

[0009] Furthermore, a reset spring is provided at one end of the inner side of the fixed arm, which is sleeved on the outside of the power supply wire, and a movable block that slides with the fixed arm is provided at one end of the reset spring.

[0010] Furthermore, the other end of the reset spring is fixed with a limiting block that is fixed to the fixed arm, and the power supply wire passes through the movable block and the limiting block and is slidably connected to them.

[0011] By employing the above technical solution, this utility model provides a drone with an arm folding mechanism, which, compared to the prior art, has at least the following beneficial effects:

[0012] 1. This utility model uses a rotating component to drive the movable arm to automatically fold to the bottom of the fixed arm, completing the folding of the arm. The automated folding arm can complete the folding of the arm in a short time without manual intervention, which greatly improves the operating efficiency. It is especially suitable for rapid deployment or storage. At the same time, the automatic synchronous folding ensures that the angle and position of each arm are consistent, reducing human error during operation and avoiding the risk of incomplete folding or misalignment. It can also ensure that the arms are precisely aligned when retracted, ensuring the stability and safety of the drone and avoiding flight instability caused by folding problems.

[0013] 2. This utility model ensures consistency in each fold by setting a drive component to drive several rotating components to operate synchronously, avoiding the differences and errors that may occur in manual operation. At the same time, the automated folding process is usually designed to be more precise, avoiding damage caused by accidental operation, and improving the safety and reliability of the drone. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a front perspective sectional view of the present invention;

[0017] Figure 3 for Figure 2Enlarged schematic diagram of part A;

[0018] Figure 4 This is a schematic diagram of the structure of the drive component of this utility model;

[0019] Figure 5 This is an exploded view of the rotating assembly and the reset assembly of this utility model.

[0020] In the diagram: 1. Main body; 2. Folding arm; 21. Fixed arm; 22. Movable arm;

[0021] 3. Rotating assembly; 31. Movable seat; 32. Limiting seat; 33. Rotating shaft; 34. Synchronous belt; 35. Drive shaft one; 36. Drive shaft two; 37. Gear set;

[0022] 38. Drive assembly; 381. Transmission gear ring; 382. Driven gear; 383. Support plate; 384. Arc track; 385. Micro motor; 386. Drive gear;

[0023] 4. Reset assembly; 41. Fixed pulley one; 42. Fixed pulley two; 43. Reset spring; 44. Movable block;

[0024] 5. Power supply cable. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Drones with folding arm mechanisms can be folded up and stored when not in use, saving space. Traditional drones often require manual folding of the arms one by one, making it impossible to fold multiple arms simultaneously, resulting in poor operational efficiency and difficulty in meeting the needs of rapid deployment or storage. To achieve arm folding in a short time without manual intervention, such as… Figure 1 - Figure 3 As shown, a drone with a folding arm mechanism is provided, including four folding arms 2 arranged in a circular array on the body 1. In this embodiment, four folding arms 2 are provided, but five or six can be provided in practice. Each folding arm 2 consists of a fixed arm 21 and a movable arm 22. The fixed arm 21 is fixed on the body 1, and the movable arm 22 is located at the end of the fixed arm 21 away from the body 1.

[0027] A rotating assembly 3 for automatically folding the movable arm 22 is provided on the fixed arm 21. The rotating assembly 3 includes a movable seat 31 at one end of the movable arm 22, a limiting seat 32 rotatably disposed at one end of the movable seat 31 and fixed to the fixed arm 21, and a rotating shaft 33 rotatably disposed on the limiting seat 32 and fixed to the movable seat 31 via bearings. A synchronous belt 34 is driven by a synchronous pulley on the rotating shaft 33. The synchronous belt 34 extends through the fixed arm 21 to its inner side. A transmission shaft 35 is driven by a bearing at the top of the synchronous belt 34 and rotates with the inner side of the fixed arm 21. A second drive shaft 36 is rotatably mounted on the inner side of arm 21 via a bearing seat. One end of the second drive shaft 36 extends to the inner side of the machine body 1. A gear set 37 is provided between the first drive shaft 35 and the second drive shaft 36. The gear set 37 is a bevel gear set 37. The second drive shaft 36 drives the first drive shaft 35 to rotate through the gear set 37. The first drive shaft 35 drives the rotating shaft 33 to rotate through the synchronous belt 34. The rotating shaft 33 drives the movable seat 31 and the movable arm 22 to rotate, folding the movable arm 22 at the bottom of the fixed arm 21, ensuring that the arm is precisely aligned when retracted, and avoiding the risk of incomplete folding or misalignment.

[0028] To ensure consistency in every fold, avoiding differences and errors that may occur during manual operation, and improving the safety and reliability of the folding arm 2, such as... Figure 4 As shown, the specific implementation method is as follows: the machine body 1 is provided with a drive assembly 38 for driving four rotating components 3 to operate synchronously. The drive assembly 38 includes a transmission gear ring 381 disposed inside the machine body 1, and a driven gear 382 fixed to one end of the four transmission shafts 36 and meshing with the transmission gear ring 381. The bottom of the driven gear 382 is provided with a support plate 383 fixed to the machine body 1. An arc-shaped track 384 that slides with the transmission gear ring 381 is fixed on the support plate 383. A micro motor 385 is fixed inside the machine body 1. The output shaft of the micro motor 385 is fixed with a drive gear 386 that meshes with the transmission gear ring 381.

[0029] By starting the micro motor 385, the drive gear 386 and the transmission gear ring 381 are driven to rotate, which in turn drives the four transmission shafts 36 to rotate synchronously. This enables the simultaneous operation of the four rotating components 3, making the automated folding process more precise and avoiding damage caused by accidental operation.

[0030] To ensure that the power cable 5 connected to the movable arm 22 retracts normally when folding, and to prevent damage to the power cable 5 that could affect its service life, such as... Figure 5As shown, the specific implementation is as follows: a power cord 5 with both ends fixed to the movable arm 22 and the body 1 is provided on the inner side of the fixed arm 21. A reset assembly 4 for adjusting the tension of the power cord 5 is also provided inside the fixed arm 21. The reset assembly 4 includes a fixed pulley 41 fixed to one end of the inner side of the movable arm 22 and a fixed pulley 42 fixed to both ends of the inner side of the fixed arm 21. The power cord 5 is slidably connected on the fixed pulley 41 and the fixed pulley 42. The power cord 5 is in a relaxed state between the two fixed pulleys 42. A reset spring 43 is provided on one end of the inner side of the fixed arm 21 and sleeved on the outside of the power cord 5. A movable block 44 that slides with the fixed arm 21 is provided on one end of the reset spring 43. A limiting block that is fixed to the fixed arm 21 is fixed on the other end of the reset spring 43. The power cord 5 passes through the movable block 44 and the limiting block and is slidably connected to them.

[0031] When the movable arm 22 rotates around the rotating shaft 33, it drives the power cable 5 to slide on the fixed pulley 41 and the fixed pulley 42. The power cable 5, which is slack between the two fixed pulleys 42, is tightened. The movable arm 22 is folded at the bottom of the fixed arm 21. The movable arm 22 and the fixed arm 21 are kept in close contact. The power cable 5 drives the movable block 44 to move and squeeze the return spring 43, keeping the power cable 5 at a normal tension and preventing it from being overstretched.

[0032] In this invention, during the folding process of the folding arm, a micro motor 385 is activated. The output shaft of the micro motor 385 drives the drive gear 386 at one end to rotate. The drive gear 386 drives the transmission gear ring 381 meshing with it to rotate. The transmission gear drives the four driven gears 382 meshing with it to rotate. The four transmission gears drive the transmission shaft 26 on one side to rotate. The four transmission shafts 26 rotate synchronously. The transmission shaft 26 drives the transmission shaft 15 to rotate through the gear set 37. The transmission shaft 15 drives the rotating shaft 33 to rotate through the synchronous belt 34. The rotating shaft 33 drives the movable seat 31 to rotate. The movable seat 31 drives the movable arm 22 to rotate 180 degrees around the rotating shaft 33, folding the movable arm 22 to the bottom of the fixed arm 21. The movable arm 22 and the fixed arm 21 remain in contact, thereby realizing the simultaneous automatic folding of the four folding arms 2.

[0033] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drone with a folding arm mechanism, comprising a plurality of folding arms (2) arranged in a circular array and mounted on the fuselage (1), characterized in that: The folding arm (2) includes a fixed arm (21) fixed on the body (1) and a movable arm (22) disposed at one end of the fixed arm (21). A rotating component (3) for driving the movable arm (22) to fold automatically is provided on the fixed arm (21). The rotating assembly (3) includes a movable seat (31) disposed at one end of the movable arm (22), a limiting seat (32) rotatably disposed at one end of the movable seat (31) and fixed to the fixed arm (21), and a rotating shaft (33) rotatably disposed on the limiting seat (32) and fixed to the movable seat (31) via a bearing. A synchronous belt (34) is provided on the rotating shaft (33) via a synchronous pulley. The synchronous belt (34) extends through the fixed arm (21) to its inner side. A transmission shaft one (35) is provided at the top of the synchronous belt (34) and rotates with the inner side of the fixed arm (21) via a bearing. A transmission shaft two (36) is rotatably disposed on the inner side of the fixed arm (21) via a bearing seat.

2. The UAV with an arm folding mechanism according to claim 1, characterized in that: The machine body (1) is provided with a drive assembly (38) for driving several rotating components (3) to operate synchronously. The drive assembly (38) includes a transmission gear ring (381) disposed inside the machine body (1) and a driven gear (382) fixed to one end of several transmission shafts (36) and meshing with the transmission gear ring (381). The bottom of the driven gear (382) is provided with a support plate (383) fixed to the machine body (1). An arc-shaped track (384) that slides with the transmission gear ring (381) is fixed on the support plate (383).

3. The UAV with an arm folding mechanism according to claim 2, characterized in that: A micro motor (385) is fixed on the inner side of the body (1), and the output shaft of the micro motor (385) is fixed with an active gear (386) that meshes with the transmission gear ring (381).

4. A drone with an arm folding mechanism according to claim 1, characterized in that: One end of the second drive shaft (36) extends to the inside of the body (1), and a gear set (37) is provided between the first drive shaft (35) and the second drive shaft (36).

5. A drone with an arm folding mechanism according to claim 1, characterized in that: The inner side of the fixed arm (21) is provided with a power cord (5) with both ends fixed on the movable arm (22) and the body (1) respectively. The fixed arm (21) is also provided with a reset assembly (4) for adjusting the tightness of the power cord (5). The reset assembly (4) includes a fixed pulley one (41) fixed to one end of the inner side of the movable arm (22) and a fixed pulley two (42) fixed to both ends of the inner side of the fixed arm (21). The power cord (5) is slidably connected on the fixed pulley one (41) and the fixed pulley two (42).

6. A drone with an arm folding mechanism according to claim 5, characterized in that: A reset spring (43) is provided on one end of the inner side of the fixed arm (21) and sleeved on the outside of the power cord (5). A movable block (44) that slides with the fixed arm (21) is provided on one end of the reset spring (43).

7. A drone with an arm folding mechanism according to claim 6, characterized in that: The other end of the reset spring (43) is fixed with a limiting block that is fixed to the fixed arm (21), and the power cord (5) passes through the movable block (44) and the limiting block and is slidably connected to them.

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