A damping structure for a multi-copter drone

Abstract

This invention discloses a damping structure for a multi-rotor unmanned aerial vehicle (UAV), belonging to the field of multi-rotor UAV technology. It includes: a push rod tailstock, a clamping seat, an adjusting column, and a first shock absorber. The push rod tailstock passes through the side plate of the UAV and is fixedly mounted on one side of the side plate. One end of the clamping seat is fitted onto the end of the push rod tailstock that passes through the side plate, fixing the clamping seat to the other side of the side plate. One end of the adjusting column is connected to the other end of the clamping seat, and the other end of the adjusting column faces the other side plate. The adjusting column connects the clamping seats of two adjacent side plates, allowing adjustment of the clamping force of the two clamping seats on the two adjacent side plates on the corresponding first shock absorber. The first shock absorber is fitted onto the push rod tailstock that passes through the side plate and is located within the opening space where the push rod tailstock passes through the side plate. This invention can reduce the vibration transmitted from the power system to the fuselage during UAV operation, preventing vibration from causing loosening of components and avoiding damage and disintegration of the UAV.

Description

Technical Field

[0001] This invention relates to the field of multi-rotor unmanned aerial vehicle (UAV) technology, and more particularly to a damping structure for multi-rotor UAVs. Background Technology

[0002] Multi-rotor drones have a wide range of applications and are characterized by low cost, good maneuverability, and ease of use. They have broad prospects and huge development opportunities in the civilian sector, and the trend of intelligentization and integration is significant.

[0003] A multi-rotor drone is a special type of unmanned rotary-wing aircraft with three or more rotor shafts. Each rotor shaft is powered by an electric motor, which drives the rotors to rotate, generating lift. By changing the relative speeds between the different rotors, the torque of the thrust can be altered, thus controlling the aircraft's trajectory. Multi-rotor drones can now easily enter various harsh environments that are difficult for humans to access, performing tasks such as aerial filming, real-time monitoring, and terrain reconnaissance.

[0004] In existing technologies, the arms and fuselage of multi-rotor drones are rigidly connected without any damping structure to reduce vibration. During long-term operation, the accumulated vibration poses a significant risk of loosening of various connecting components, resulting in unstable flight and, in severe cases, disintegration or crashes. Summary of the Invention

[0005] To address some or all of the technical problems existing in the prior art, the present invention provides a damping structure for a multi-rotor drone, which can reduce the vibration transmitted from the power system to the fuselage during drone operation, reduce the loosening of various components caused by vibration, avoid damage and disintegration of the drone, and enable the multi-rotor drone to fly smoothly.

[0006] The technical solution of the present invention is as follows: A damping structure for a multi-rotor unmanned aerial vehicle is provided, comprising: A push rod tailstock passes through the side plate of the multi-rotor UAV and is fixedly mounted on one side of the side plate; A clamping seat, one end of which is sleeved on the end of the push rod tail seat that passes through the side plate, so as to fix the clamping seat to the other side of the side plate, so that the clamping seat and the push rod tail seat are arranged opposite to each other; An adjusting column is provided, one end of which is connected to the other end of the clamping seat. The other end of the adjusting column faces the other side plate of the multi-rotor UAV. The adjusting column is used to connect the clamping seats of two adjacent side plates. The clamping force of the two clamping seats on the two adjacent side plates on the corresponding first shock absorber can be adjusted by the adjusting column. The adjusting column serves as a symmetry axis to symmetrically distribute the two adjacent side plates and the damping structure on the side plates. The first shock absorber is located between the push rod tail seat and the clamping seat. The first shock absorber is sleeved on the push rod tail seat that passes through the side plate, and the first shock absorber is located in the opening space where the push rod tail seat passes through the side plate, so that the push rod tail seat passes through the side plate and passes through the first shock absorber at the same time.

[0007] In some alternative embodiments, the first damping element comprises a damping element made of rubber material.

[0008] In some alternative embodiments, a second damping element is also included, which is sleeved on the push rod tailstock passing through the side plate and located between the first damping element and the clamping seat.

[0009] In some alternative embodiments, the second damping element includes a damping pad.

[0010] In some alternative embodiments, a bushing is also included, which is fitted onto the push rod tailstock and located between the push rod tailstock and the first shock absorber.

[0011] In some alternative embodiments, the two ends of the adjusting column are provided with external threads for threaded connection with the clamping seat.

[0012] In some alternative embodiments, a locking nut is also included, the internal thread of which engages with the external thread on the adjusting column, so that after the clamping seat is adjusted to clamp the first shock absorber, the clamping seat is locked by the locking nut.

[0013] In some optional embodiments, the middle part of the adjusting column is further provided with an operating part integrally formed or fixedly connected to the adjusting column for rotating the adjusting column.

[0014] In some alternative implementations, the operating part includes a hexagonal face or a hexagonal head.

[0015] In some alternative implementations, the push rod tailstock is fixedly connected to the arm assembly of the multi-rotor UAV.

[0016] The main advantages of the technical solution of this invention are as follows: This invention discloses a damping structure for a multi-rotor drone. By setting a damping structure on two adjacent side plates of the multi-rotor drone, the vibration generated by the multi-rotor drone's power system during operation is transmitted through the arms to the push rod tailstock. The push rod tailstock exerts forces in various directions on a first damping component. The first damping component absorbs and dissipates the energy generated by the multi-rotor drone's vibration, making the multi-rotor drone fly smoothly and ensuring its stability. This prevents the multi-rotor drone from loosening, damaging, or disintegrating its components due to vibration, thus extending the service life of the multi-rotor drone. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and constitute a part of this invention, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 A cross-sectional view of a damping structure for a multi-rotor unmanned aerial vehicle provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of a damping structure for a multi-rotor unmanned aerial vehicle (UAV) provided in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Push rod tailstock; 2. Clamping seat; 3. Adjusting column; 31. Operating part; 4. First shock absorber; 5. Second shock absorber; 6. Bushing; 7. Locking nut; 8. Arm assembly; 9. Side plate. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] The following is in conjunction with the appendix Figure 1-2 The technical solutions provided in the embodiments of the present invention will be described in detail.

[0021] As attached Figure 1 and attached Figure 2 As shown, this embodiment of the invention provides a damping structure for a multi-rotor unmanned aerial vehicle (UAV). The damping structure includes: a push rod tailstock 1, a clamping seat 2, an adjusting column 3, and a first shock absorber 4, wherein: The push rod tailstock 1 passes through the side plate 9 of the multi-rotor UAV and is fixedly mounted on one side of the side plate 9. One end of the clamping seat 2 is sleeved on the end of the push rod tailstock 1 that passes through the side plate 9, so that the clamping seat 2 is positioned on the other side of the side plate 9, and the clamping seat 2 and the push rod tailstock 1 are positioned opposite each other. One end of the adjusting column 3 is connected to the other end of the clamping seat 2, and the other end of the adjusting column 3 faces the other side plate 9 of the multi-rotor UAV. The adjusting column 3 is used to connect the clamping seats 2 of two adjacent side plates 9, and the adjusting column 3 can be used to adjust the clamping seat 2. The clamping force of the two clamping seats 2 on the two adjacent side plates 9 on the corresponding first damping member 4 is adjusted by the adjusting column 3 as the axis of symmetry to symmetrically distribute the two adjacent side plates 9 and the damping structure on the side plates 9; the first damping member 4 is located between the push rod tail seat 1 and the clamping seat 2. The first damping member 4 is sleeved on the push rod tail seat 1 that passes through the side plate 9, and the first damping member 4 is located in the opening space where the push rod tail seat 1 passes through the side plate 9, so that the push rod tail seat 1 passes through the side plate 9 and passes through the first damping member 4 at the same time.

[0022] The principle of a damping structure for a multi-rotor unmanned aerial vehicle according to the present invention includes: By setting damping structures on the two adjacent side plates 9 of the multi-rotor drone, when the multi-rotor drone's power system is working, the vibration generated by the multi-rotor drone's power system will be transmitted to the push rod tail seat 1 through the arm. The push rod tail seat 1 will generate forces in various directions on the first damping component 4. The first damping component 4 absorbs and dissipates the energy generated by the vibration of the multi-rotor drone, making the multi-rotor drone fly smoothly, ensuring the stability of the multi-rotor drone, avoiding the loosening, damage and disintegration of various components caused by vibration, and extending the service life of the multi-rotor drone.

[0023] In some optional implementations of this embodiment, the first damping member 4 includes a damping element made of rubber material.

[0024] For example, the first shock absorber 4 includes a rubber shock absorber column. In order to achieve better shock absorption and fit tightly with the push rod tail seat 1, the rubber shock absorber column is set as a ring structure, and its inner ring surface is set as a transition fit with the push rod tail seat 1. When the rubber shock absorber column is sleeved on the push rod tail seat 1, the push rod tail seat 1 will generate forces in various directions on the rubber shock absorber column, and the rubber shock absorber column will absorb and dissipate the energy generated by the vibration. This can ensure the flight stability of the multi-rotor UAV and extend the service life of each component.

[0025] In a damping structure for a multi-rotor unmanned aerial vehicle according to the present invention, a second shock absorber 5 is further included. The second shock absorber 5 is sleeved on the push rod tail seat 1 that passes through the side plate 9 and is located between the first shock absorber 4 and the clamping seat 2.

[0026] This configuration allows the second shock absorber 5 to press the first shock absorber 4 firmly, so that when vibration occurs during the flight of the multi-rotor drone, the first shock absorber 4 can better absorb the vibration, thereby improving the flight stability of the multi-rotor drone. It also prevents the multi-rotor drone from disintegrating or crashing due to vibration during flight.

[0027] As an example, the second damping element 5 includes damping pads.

[0028] In a damping structure for a multi-rotor unmanned aerial vehicle according to the present invention, a bushing 6 is further included. The bushing 6 is sleeved on the push rod tail seat 1 and located between the push rod tail seat 1 and the first shock absorber 4.

[0029] This configuration, by installing the bushing 6 between the push rod tail seat 1 and the first shock absorber 4, can isolate the rigid connection between the two and increase the deformation space of the first shock absorber 4. When the UAV vibrates during flight, the first shock absorber 4 can absorb the energy generated by the vibration more fully and thoroughly, thereby ensuring the stability of the UAV and extending the service life of the multi-rotor UAV and its components.

[0030] In some optional implementations of this embodiment, the two ends of the adjusting column 3 are provided with external threads for threaded connection with the clamping seat 2.

[0031] This configuration allows for the connection of two parallel clamping seats 2 on the side plate 9 via an adjusting column 3. The adjusting column 3 can adjust the clamping force of the two clamping seats 2 on the corresponding first shock absorber 4, making the damping structure of the present invention simpler and reducing the overall weight of the damping structure. This reduces the drag and weight of the multi-rotor UAV during flight, reduces the energy consumption of the multi-rotor UAV during flight, extends the flight time, and also ensures the stability and safety of the multi-rotor UAV during flight.

[0032] In order to prevent the clamping force between the two clamping seats 2 from changing due to vibration and affecting the damping effect after the clamping force of the two clamping seats 2 on the corresponding first shock absorber 4 is adjusted, a locking nut 7 is also provided in the damping structure for multi-rotor UAV of the present invention. The internal thread of the locking nut 7 is matched with the external thread on the adjusting column 3 so that after the clamping seat 2 is adjusted to clamp the first shock absorber 4, the clamping seat 2 is locked by the locking nut 7, which plays a role in preventing loosening. This can prevent the clamping force of the two clamping seats 2 on the corresponding first shock absorber 4 from changing, and further ensure the flight stability of the multi-rotor UAV.

[0033] With this configuration, by setting a locking nut 7 on the adjusting column 3, the damping structure of this embodiment of the invention can more fully absorb and dissipate the vibrations transmitted from the power system to the push rod tail seat 1 through the arm when absorbing the vibrations generated by the multi-rotor UAV.

[0034] In order to facilitate the adjustment of the clamping force of the two clamping seats 2 on the corresponding first shock absorber 4 and improve the adjustment efficiency, in this embodiment of the invention, an operating part 31 for rotating the adjusting column 3 is also provided in the middle of the adjusting column 3, which is integrally formed or fixedly connected to the adjusting column 3.

[0035] In an embodiment of the present invention, in order to further improve the adjustment efficiency and the versatility of the operation of the operation part 31, the operation part 31 is configured as a hexagonal face or a hexagonal head.

[0036] This design allows for adjustments to be made using a conventional wrench, reducing non-standard structures and thus lowering the cost of the damping structure in this embodiment of the invention. It also reduces manufacturing difficulty and enhances the interchangeability of this invention.

[0037] Furthermore, in this embodiment of the invention, the push rod tailstock 1 is fixedly connected to or integrally formed with the arm assembly 8.

[0038] This design can completely absorb the vibrations generated during the operation of the multi-rotor drone's power system, thereby improving the flight stability and safety of the multi-rotor drone.

[0039] A method of using a damping structure for a multi-rotor unmanned aerial vehicle according to an embodiment of the present invention includes: Connect the various components of the damping structure of the present invention to the UAV in the manner described above. Use a wrench or general-purpose tool to adjust the operating part 31 of the hexagonal face or hexagonal head to adjust the relative position of the adjusting column 3 and the clamping seat 2. After the first shock absorber 4 is clamped by the clamping seat 2, it is locked by the locking nut 7. This allows the damping mechanism provided in the embodiment of the present invention to absorb the vibration generated when the power system of the multi-rotor UAV vibrates during flight, thus ensuring the flight safety of the UAV.

[0040] In summary, the damping structure for a multi-rotor drone of the present invention, by setting damping structures on two adjacent side plates 9, allows the vibration generated by the drone's power system during operation to be transmitted through the arms to the push rod tail seat 1. The push rod tail seat 1 then generates forces in various directions on the first damping component 4. The first damping component 4 absorbs and dissipates the energy generated by the vibration, making the multi-rotor drone fly smoothly, ensuring the stability of the multi-rotor drone, avoiding the loosening, damage, and disintegration of various components caused by vibration, and extending the service life of the multi-rotor drone.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Additionally, the terms "front," "back," "left," "right," "upper," and "lower" in this document refer to the placement shown in the accompanying drawings.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A damping structure for a multi-rotor unmanned aerial vehicle, characterized in that, include: A push rod tailstock passes through the side plate of the multi-rotor UAV and is fixedly mounted on one side of the side plate; A clamping seat, one end of which is sleeved on the end of the push rod tail seat that passes through the side plate, so as to fix the clamping seat to the other side of the side plate, so that the clamping seat and the push rod tail seat are arranged opposite to each other; An adjusting column is provided, one end of which is connected to the other end of the clamping seat. The other end of the adjusting column faces the other side plate of the multi-rotor UAV. The adjusting column is used to connect the clamping seats of two adjacent side plates. The clamping force of the two clamping seats on the two adjacent side plates on the corresponding first shock absorber can be adjusted by the adjusting column. The adjusting column serves as a symmetry axis to symmetrically distribute the two adjacent side plates and the damping structure on the side plates. The first shock absorber is located between the push rod tail seat and the clamping seat. The first shock absorber is sleeved on the push rod tail seat that passes through the side plate, and the first shock absorber is located in the opening space where the push rod tail seat passes through the side plate, so that the push rod tail seat passes through the side plate and passes through the first shock absorber at the same time.

2. The damping structure for a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, The first damping component includes a damping element made of rubber material.

3. The damping structure for a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, It also includes a second shock absorber, which is sleeved on the push rod tailstock that passes through the side plate and is located between the first shock absorber and the clamping seat.

4. The damping structure for a multi-rotor unmanned aerial vehicle according to claim 3, characterized in that, The second shock absorber includes a shock-absorbing pad.

5. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, It also includes a bushing, which is fitted onto the push rod tailstock and located between the push rod tailstock and the first shock absorber.

6. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, The adjusting column has external threads at both ends for threaded connection with the clamping seat.

7. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 6, characterized in that, It also includes a locking nut, the internal thread of which engages with the external thread on the adjusting column, so that after the first shock absorber is pressed down by adjusting the clamping seat, the clamping seat is locked by the locking nut.

8. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 6, characterized in that, The middle part of the adjusting column is also provided with an operating part integrally formed or fixedly connected to the adjusting column for rotating the adjusting column.

9. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 8, characterized in that, The operating part includes a hexagonal face or a hexagonal head.

10. A damping structure for a multi-rotor unmanned aerial vehicle according to claim 1, characterized in that, The push rod tailstock is fixedly connected to the arm assembly of the multi-rotor UAV.

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