Parallel eight-rod buffer structure and unmanned aerial vehicle
By adopting a parallel eight-bar buffer structure in the drone and using the coordinated movement of multiple vibration isolation mechanism groups, the vibration problem of the drone is solved, and effective protection of the battery module and stable operation of the drone are achieved.
Patent Information
- Application Number
- CN202510426135.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-06-27
AI Technical Summary
When taking off, landing and being disturbed by airflow, the drone will be accompanied by strong vibration and impact, resulting in damage to the battery module and failure of components, affecting the endurance and safety of the drone.
The parallel eight-bar buffer structure is adopted, including two rectangular platforms and four vibration isolation mechanism groups. The vibration isolation mechanism group is arranged between the two rectangular platforms in the z-direction. Each vibration isolation mechanism group includes two vibration isolation mechanisms. Through the combination of a ball hinge, a bidirectional vibration isolation and buffering of multi-directional vibration are achieved.
Effectively absorb and disperse vibration energy, reduce impact on the battery module, extend service life, and ensure the stable operation of the drone in complex environments.
Smart Images
Figure CN120221886A_ABST
Abstract
Description
Technical Field
[0001] The present invention particularly relates to a parallel eight-bar buffer structure and an unmanned aerial vehicle, belonging to the technical field of vibration control of unmanned aerial vehicles. Background Art
[0002] When taking off, landing, or being disturbed by air currents, an unmanned aerial vehicle will be accompanied by strong vibrations and impacts. Such vibrations and impacts will be transmitted to the battery modules in the battery box and the precision components in the battery management system, causing damage to the battery modules or failure of the components, and affecting the endurance and safety of the unmanned aerial vehicle. Summary of the Invention
[0003] The main object of the present invention is to provide a parallel eight-bar buffer structure and an unmanned aerial vehicle, so as to overcome the deficiencies in the prior art.
[0004] To achieve the foregoing invention object, the technical solutions adopted by the present invention include: A first aspect of an embodiment of the present invention provides a parallel eight-bar buffer structure, which includes: a first rectangular platform, a second rectangular platform, and four vibration isolation mechanism groups; The second rectangular platform is arranged above the first rectangular platform along the z direction, the first rectangular platform is parallel to the second rectangular platform, the area of the first rectangular platform is larger than the area of the second rectangular platform, and the length directions of both the first rectangular platform and the second rectangular platform are the y direction, and the width directions are both the x direction; The four vibration isolation mechanism groups are arranged between the first rectangular platform and the second rectangular platform along the z direction. Each vibration isolation mechanism group includes two vibration isolation mechanisms arranged at intervals along the x direction or the y direction. The two ends of the two vibration isolation mechanisms included in the same vibration isolation mechanism group are respectively movably connected to two sides of the same side of the first rectangular platform and the second rectangular platform. Each vibration isolation mechanism has a degree of freedom of telescoping along its own length direction and a degree of freedom of rotating around its own axis. The four vibration isolation mechanism groups and the first rectangular platform and the second rectangular platform enclose a frustum-shaped space structure.
[0005] Further, the four sides of the first rectangular platform respectively correspond to the four sides of the second rectangular platform, and the extension direction of the line connecting the geometric centers of the first rectangular platform and the second rectangular platform is parallel to the z direction.
[0006] Further, the ratio of the area of the second rectangular platform to the area of the first rectangular platform is 0.7 - 0.8.
[0007] Further, two of the four vibration isolation mechanism groups arranged oppositely along the x direction / y direction are mirror-symmetrically arranged.
[0008] Further, the lengths of the two vibration isolation mechanisms included in the same vibration isolation mechanism group are the same or different.
[0009] Further, the difference in length between the two vibration isolation mechanisms included in the same vibration isolation mechanism group does not exceed 20% of the length of the vibration isolation mechanism.
[0010] Further, the two vibration isolation mechanisms included in the same vibration isolation mechanism group are inclined in opposite directions along the x - direction or y - direction as a whole.
[0011] Further, the angles formed by the two vibration isolation mechanisms included in the same vibration isolation mechanism group with the first rectangular platform or the second rectangular platform are the same or different.
[0012] Further, the angle formed by the vibration isolation mechanism with the first rectangular platform is 35° - 55°, and the rotation and swing angle of the vibration isolation mechanism relative to the first rectangular platform around its own axis is ±15°.
[0013] It should be noted that whether the lengths of the two vibration isolation mechanisms included in the same vibration isolation mechanism group are the same or different mainly depends on the sizes of the first and second rectangular platforms. Within the range of the angle between the vibration isolation mechanism and the first rectangular platform, there is no significant difference in the effect.
[0014] Further, the two ends of the vibration isolation mechanism are respectively the first end and the second end. The first end is connected to the first rectangular platform, and the second end is connected to the second rectangular platform. There is a first distance between the first ends of the two vibration isolation mechanisms included in the same vibration isolation mechanism group, and a second distance between the second ends. The first distance is less than the second distance.
[0015] Further, the length of the vibration isolation mechanism connected to the long side of the first rectangular platform / the second rectangular platform is: ; The length of the vibration isolation mechanism connected to the short side of the first rectangular platform / the second rectangular platform is: ; Among them, is the length of the first rectangular platform, is the width of the first rectangular platform, is the length of the second rectangular platform, is the width of the second rectangular platform, is the angle formed by the vibration isolation mechanism connected to the long side of the first rectangular platform with the first rectangular platform, The angle between the vibration isolation mechanism that is short - connected to the first rectangular platform and the first rectangular platform. , , is the machining allowance. , , The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the long side of the second rectangular platform and the symmetry axis parallel to the wide side of the second rectangular platform. The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto. The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the second rectangular platform and the symmetry axis parallel to the long side of the second rectangular platform. The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto. The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto. The vertical distance between the central position of the connection structure between the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto.
[0016] Furthermore, the vibration isolation mechanism includes m rigid vibration isolation rods, (m - 1) bi - directional vibration isolators and two spherical hinges. The m vibration isolation rods are sequentially connected by (m - 1) bi - directional vibration isolators. The two vibration isolation rods at both ends are respectively connected to the first rectangular platform and the second rectangular platform through a spherical hinge, where m≥2.
[0017] Furthermore, the lengths of the m vibration isolation rods are the same or different.
[0018] Specifically, the end connection of each vibration isolation mechanism is a spherical hinge, and the middle part is a bi - directional vibration isolator. The bi - directional vibration isolator is filled with a gas buffer medium, and the rigid vibration isolation rod is between the bi - directional vibration isolator and the spherical hinge.
[0019] The second aspect of the embodiments of the present invention provides a drone, including a drone body, a battery box, and the parallel eight - bar buffer structure. The drone body is fixedly arranged on the second rectangular platform, and the battery box is fixedly arranged on the first rectangular platform.
[0020] Specifically, the parallel eight - bar buffer structure has a significant vibration isolation and buffering effect on the up - and - down impacts and vibrations received by the battery box during the take - off and landing of the drone, as well as the impacts and vibrations caused by the multi - direction air - flow disturbances on the battery box during the flight of the drone.
[0021] Compared with the prior art, the advantages of the present invention include: A parallel eight-bar buffer structure provided by an embodiment of the present invention optimizes the buffer performance, simplifies the design, reduces the cost, and improves the overall reliability of the drone through the parallel eight-bar structure.
[0022] A parallel eight-bar buffer structure provided by an embodiment of the present invention utilizes the coordinated movement of the eight bars to effectively absorb and disperse vibration energy, reduce the impact on the battery module, extend the service life, and achieve multi-band vibration isolation by accurately calculating the link lengths and angles to ensure the stable operation of the drone in various complex environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 is a schematic structural diagram of a parallel eight-bar buffer structure provided in a typical embodiment of the present invention; Figure 2 is a front projection structural diagram of a parallel eight-bar buffer structure provided in a typical embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention through long-term research and a large number of practices. The following will further explain the technical solution, its implementation process and principle in combination with the drawings and specific embodiments. Unless otherwise specified, the vibration isolation rods, ball joints, bi-directional vibration isolators, rectangular platforms, etc. involved in the embodiments of the present invention are all known in the art, and they can all be obtained through commercial purchase or processed by known processes in the art. In addition, the drone body and battery box involved in the embodiments of the present invention are also known functional mechanisms in the art, and the specific product structures and models thereof are not limited herein.
[0025] A parallel eight-bar buffer structure is assembled between the drone body and the battery box, and this parallel eight-bar buffer structure has a significant vibration isolation and buffering effect on the up and down impacts and vibrations received by the battery box during the takeoff and landing of the drone, as well as the impacts and vibrations generated by the multi-directional air flow disturbances on the battery box during the flight of the drone.
[0026] Please refer to Figure 1 and Figure 2, in a relatively typical implementation case, a parallel eight-bar buffer structure includes a first rectangular platform 110, a second rectangular platform 120, and four vibration isolation mechanism groups; the second rectangular platform 120 is arranged above the first rectangular platform 110 in the z direction. The first rectangular platform 110 serves as the static platform, and the second rectangular platform 120 serves as the moving platform. The first rectangular platform 110 is parallel to the second rectangular platform 120. The area of the first rectangular platform 110 is smaller than the area of the second rectangular platform 120. The four vibration isolation mechanism groups are arranged in the z direction between the first rectangular platform 110 and the second rectangular platform 120. The four vibration isolation mechanism groups are respectively connected to the two long sides and two wide sides of the first rectangular platform 110 and the second rectangular platform 120 correspondingly. The four vibration isolation mechanism groups and the first rectangular platform 110 and the second rectangular platform 120 enclose a symmetric frustum-shaped space structure. The UAV body is fixedly arranged on the second rectangular platform 120, and the battery box 300 (body) is fixedly arranged on the first rectangular platform 110.
[0027] Specifically, the first rectangular platform 110 and the second rectangular platform 120 are parallel. The four sides of the first rectangular platform 110 respectively correspond to the four sides of the second rectangular platform 120 one by one. The extension direction of the line connecting the geometric centers of the first rectangular platform 110 and the second rectangular platform 120 is parallel to the z direction. The area of the first rectangular platform 110 is larger than the area of the second rectangular platform 120, and / or the ratio of the area of the second rectangular platform 120 to the area of the first rectangular platform 110 is 0.7 - 0.8. The long directions of both the first rectangular platform 110 and the second rectangular platform 120 are the y direction, and the wide directions are both the x direction. More specifically, each vibration isolation mechanism group includes two vibration isolation mechanisms 200 arranged at intervals in the x direction or the y direction. The two ends of the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group are respectively movably connected to the two sides of the same side of the first rectangular platform 110 and the second rectangular platform 120. Each vibration isolation mechanism 200 has the freedom of telescoping along its own length direction and the freedom of rotating around its own axis. When the second rectangular platform 120 vibrates, the telescoping of each vibration isolation mechanism 200 is coordinated, and it can absorb energy in different directions. Through simulation, it shows that when the second rectangular platform 120 vibrates, the vibration isolation mechanisms 200 are both compressed and stretched, and share the tensile / compressive force according to the position and direction, which can ensure the stability of the second rectangular platform 120 and multi-dimensional vibration isolation. Specifically, the x direction, the y direction, and the z direction respectively correspond to the x-axis, the y-axis, and the z-axis of a three-dimensional coordinate system.
[0028] Specifically, two of the four vibration isolation mechanism groups arranged oppositely in the x-direction / y-direction are mirror-symmetrically arranged. Specifically, on the first rectangular platform 110 and the second rectangular platform 120, the four vibration isolation mechanism groups and the four sets of installation points (positions) / connection points (positions) of the first rectangular platform 110 and the second rectangular platform 120 are symmetrically arranged in the x-direction / y-direction, and each set of installation points includes two installation points. More specifically, on the first rectangular platform 110, the four vibration isolation mechanism groups and the four sets of installation points of the first rectangular platform 110 are located in the installation area of the unmanned aerial vehicle. On the second rectangular platform 120, the four vibration isolation mechanism groups and the four sets of installation points of the second rectangular platform 120 are distributed within the rectangular area of the radar array surface.
[0029] Specifically, each vibration isolation mechanism group includes two vibration isolation mechanisms 200 arranged at intervals in the x-direction or y-direction. The two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group are integrally inclined in the opposite direction in the x-direction or y-direction, that is, the two ends of the vibration isolation mechanism 200 are respectively the first end and the second end. The first end is connected to the first rectangular platform 110, and the second end is connected to the second rectangular platform 120. There is a first distance between the first ends of the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group, and a second distance between the second ends. The first distance is less than the second distance, and each vibration isolation mechanism group is symmetrically distributed in a "V" shape. Specifically, the angles formed by the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group and the first rectangular platform 110 or the second rectangular platform 120 are the same or different.
[0030] Specifically, the included angle between each vibration isolation mechanism 200 and the normal of the first rectangular platform 110 is limited by the inclination angle of the connection structure between the vibration isolation mechanism 200 and the first rectangular platform 110. The installation of the eight vibration isolation mechanisms 200 is limited by the size of the battery box 300 and the space of the unmanned aerial vehicle cabin. The design requirements need to ensure structural symmetry, avoid interference, and, the design of the eight vibration isolation mechanisms 200 needs to ensure that when a single vibration isolation mechanism 200 fails, the remaining vibration isolation mechanisms 200 can still achieve stable support.
[0031] Specifically, the inclination directions of the eight vibration isolation mechanisms 200 are multi-directionally inclined in three-dimensional space to cover the six-degree-of-freedom vibration isolation requirements. For example, the four vibration isolation mechanism groups are symmetrically inclined along the X / Y axes to form stable support. More specifically, the eight vibration isolation mechanisms 200 adopt a variant of the eight-bar Stewart platform with a symmetric layout. The inclination directions of adjacent vibration isolation mechanisms 200 are complementary to ensure dynamic balance. At the same time, the structural layout of the four vibration isolation mechanism groups avoids stiffness concentration in a single direction and improves the multi-dimensional vibration isolation performance.
[0032] Specifically, the inclination angle of the vibration isolation mechanism 200 needs to balance the vibration isolation performance and space limitations, and is adjusted according to the specific installation position and simulation results. It is necessary to balance the vibration isolation performance and space limitations. If the inclination angle of the vibration isolation mechanism 200 is too large, the length of the vibration isolation mechanism 200 will be insufficient, and if it is too small, the vibration cannot be effectively absorbed. Specifically, the angle between the vibration isolation mechanism 200 and the first rectangular platform 110 is 35° - 55°, and the rotation and swing angle of the vibration isolation mechanism 200 relative to the first rectangular platform 110 around its own axis is ±15°.
[0033] Specifically, the lengths of the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group may be the same or different, and / or the length difference between the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group does not exceed 20% of the length of the vibration isolation mechanism 200. It should be noted that whether the lengths of the two vibration isolation mechanisms 200 included in the same vibration isolation mechanism group are the same or different mainly depends on the sizes of the first and second rectangular platforms 120. Within the range of the angle between the vibration isolation mechanism 200 and the first rectangular platform 110, there is no significant difference in the effect.
[0034] Specifically, the end connection of each vibration isolation mechanism 200 is a spherical hinge 230, and in the middle is a two-way vibration isolator 220. The two-way vibration isolator 220 is filled with a gas buffer medium. Between the two-way vibration isolator 220 and the spherical hinge 230 is a rigid vibration isolation rod 210. The vibration isolation mechanism 200 is rotationally connected to the first rectangular platform 110 and the second rectangular platform 120 through the spherical hinge 230. The spherical hinge 230 allows the rod to freely rotate around the center of the ball, providing three-dimensional degrees of freedom to adapt to complex movements and avoid stress concentration caused by rigid connections. More specifically, the vibration isolation mechanism 200 includes m rigid vibration isolation rods 210, (m - 1) two-way vibration isolators 220, and two spherical hinges 230. The m vibration isolation rods 210 are sequentially connected through (m - 1) two-way vibration isolators 220. The two vibration isolation rods 210 at both ends are respectively connected to the first rectangular platform 110 and the second rectangular platform 120 through a spherical hinge 230. m ≥ 2, and the lengths of the m vibration isolation rods 210 may be the same or different.
[0035] Specifically, the vibration isolation mechanism 200 is preferably divided into m vibration isolation rods 210, which may have different lengths. The m vibration isolation rods 210 are connected by two-way vibration isolators 220, allowing tensile / compressive bidirectional movement. The internal of the two-way vibration isolator 220 adopts a spring-damper system, and the gas buffer medium filled is nitrogen (an inert gas to avoid oxidation).
[0036] More specifically, the length of the vibration isolation mechanism 200 connected to the long side of the first rectangular platform 110 / second rectangular platform 120 is: ; The length of the vibration isolation mechanism 200 connected to the wide side of the first rectangular platform 110 / the second rectangular platform 120 is: ; wherein, is the length of the first rectangular platform, is the width of the first rectangular platform, is the length of the second rectangular platform, is the width of the second rectangular platform, is the angle between the vibration isolation mechanism connected to the long side of the first rectangular platform and the first rectangular platform, is the angle between the vibration isolation mechanism connected to the short side of the first rectangular platform and the first rectangular platform, 、 、 are machining allowances, , , is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the long side of the second rectangular platform and the symmetry axis parallel to the wide side of the second rectangular platform, is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto, is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the second rectangular platform and the symmetry axis parallel to the long side of the second rectangular platform, is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto, is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto, is the vertical distance between the central position of the connection structure of the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto.
[0037] It should be noted that, 、 、 The lengths are all the distances of the orthographic projection on the first rectangular platform. The connection structure of the vibration isolation mechanism and the first rectangular platform / the second rectangular platform is a spherical hinge, and the central position of this connection structure is the center position of the spherical hinge. Taking as an example, please refer to Figure 2 , is the vertical distance between the central position of the spherical hinge of the connection of the vibration isolation mechanism and the long side of the second rectangular platform and the symmetry axis parallel to the wide side of the second rectangular platform within the orthographic projection formed by the parallel eight-bar buffer structure on the first rectangular platform.
[0038] A parallel eight-bar buffer structure provided by an embodiment of the present invention. This mechanism utilizes the coordinated movement of eight bars to effectively absorb and disperse vibration energy, and has a significant vibration isolation and buffering effect on the up-and-down impacts and vibrations received by the battery box during the takeoff and landing of the unmanned aerial vehicle (UAV), as well as the impacts and vibrations generated by the multi-directional airflow disturbances on the battery box during the flight of the UAV.
[0039] It should be understood that the above embodiments are only used to illustrate the technical concept and features of the present invention, and their purpose is to enable those familiar with this technology to understand the content of the present invention and implement it accordingly, and cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.
Claims
1. A parallel eight-bar buffer structure for installing a drone body and a battery box of a drone, characterized in that: include: A first rectangular platform, a second rectangular platform and four vibration isolation mechanism groups; The second rectangular platform is arranged above the first rectangular platform along the z direction, and the first rectangular platform is parallel to the second rectangular platform; Four vibration isolation mechanism groups are arranged between the first rectangular platform and the second rectangular platform along the z direction, each vibration isolation mechanism group includes two vibration isolation mechanisms arranged at intervals along the x direction or the y direction, the two ends of the two vibration isolation mechanisms included in the same vibration isolation mechanism group are respectively movably connected to the two sides of the same side of the first rectangular platform and the second rectangular platform, each vibration isolation mechanism has the freedom of extension and contraction along its own length direction and the freedom of rotation around its own axis, the four vibration isolation mechanism groups and the first rectangular platform and the second rectangular platform are enclosed to form a prism-shaped spatial structure, two vibration isolation mechanism groups relatively arranged along the x direction / y direction in the four vibration isolation mechanism groups are mirror-symmetrically arranged, the angle between the vibration isolation mechanism and the first rectangular platform is 35°-55°, and the rotation and swing angle of the vibration isolation mechanism around its own axis relative to the first rectangular platform is ±15°.
2. The parallel eight-rod buffer structure according to claim 1, characterized in that: The four sides of the first rectangular platform correspond one-to-one to the four sides of the second rectangular platform respectively, the extension direction of the line connecting the geometric center of the first rectangular platform and the geometric center of the second rectangular platform is parallel to the z direction, and the long direction of the first rectangular platform and the second rectangular platform are both in the y direction, and the wide direction is both in the x direction.
3. The parallel eight-rod buffer structure according to claim 1 or 2, characterized in that: The ratio of the area of the second rectangular platform to the area of the first rectangular platform is 0.7-0.
8.
4. The parallel eight-rod buffer structure according to claim 1, characterized in that: The lengths of the two vibration isolation mechanisms included in the same vibration isolation mechanism group are the same or different.
5. The parallel eight-rod buffer structure according to claim 4, characterized in that: The difference in length between the two vibration isolation mechanisms included in the same vibration isolation mechanism group does not exceed 20% of the length of the vibration isolation mechanism.
6. The parallel eight-bar buffer structure according to claim 1, characterized in that: The two vibration isolation mechanisms included in the same vibration isolation mechanism group are tilted in opposite directions as a whole along the x direction or the y direction.
7. The parallel eight-rod buffer structure according to claim 6, characterized in that: The angles formed between the two vibration isolation mechanisms included in the same vibration isolation mechanism group and the first rectangular platform or the second rectangular platform are the same or different.
8. The parallel eight-bar buffer structure according to claim 1 or 5 or 6 or 7, characterized in that: The two ends of the vibration isolation mechanism are respectively a first end and a second end, the first end is connected to the first rectangular platform, and the second end is connected to the second rectangular platform. The first ends of the two vibration isolation mechanisms included in the same vibration isolation mechanism group have a first spacing between them and a second spacing between their second ends. The first spacing is smaller than the second spacing. The length of the vibration isolation mechanism connected to the long side of the first rectangular platform / the second rectangular platform is for: ; The length of the vibration isolation mechanism connected to the wide side of the first rectangular platform / the second rectangular platform for: ; in, is the length of the first rectangular platform, is the width of the first rectangular platform, is the length of the second rectangular platform, is the width of the second rectangular platform, is the angle between the vibration isolation mechanism connected to the long side of the first rectangular platform and the first rectangular platform, is the angle between the short-connected vibration isolation mechanism and the first rectangular platform, , , is the machining allowance, , , is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the long side of the second rectangular platform and the symmetry axis parallel to the wide side of the second rectangular platform, is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto, is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the second rectangular platform and the symmetry axis parallel to the long side of the second rectangular platform, is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto, is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the long side of the first rectangular platform and the edge of the long side of the first rectangular platform adjacent thereto, It is the vertical distance between the center position of the connection structure between the vibration isolation mechanism and the wide side of the first rectangular platform and the edge of the wide side of the first rectangular platform adjacent thereto.
9. The parallel eight-rod buffer structure according to claim 8, characterized in that: The vibration isolation mechanism comprises m rigid vibration isolation rods, (m-1) bidirectional vibration isolators and two ball joints, the m vibration isolation rods are sequentially connected via the (m-1) bidirectional vibration isolators, and the two vibration isolation rods at both ends are respectively connected to the first rectangular platform and the second rectangular platform via a ball joint, m≥2; And / or, the lengths of the m vibration isolation rods are the same or different.
10. A drone, comprising a drone body and a battery box, characterized in that: Also includes: The parallel eight-bar buffer structure according to any one of claims 1 to 9, wherein the UAV body is fixedly arranged on the second rectangular platform, and the battery box is fixedly arranged on the first rectangular platform.