Damping device and unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, and provides a damping device and an unmanned aerial vehicle. A plurality of positioning parts are arranged on the base in the height direction of the base in an extending mode. The adapter and the base are arranged at intervals, first mounting parts and second mounting parts which are the same in number are arranged on the adapter, the first mounting parts correspond to the second mounting parts in position, the number of the first mounting parts or the second mounting parts corresponds to the number of the positioning parts, and the first mounting parts are connected with the positioning parts. One end of the connecting piece is connected with the second mounting part, and the other end is suitable for mounting the inertial navigation device, so that a gap is formed between the inertial navigation device and the base. According to the utility model, the influence of vibration generated by a carrier used by the inertial navigation device on the inertial navigation device can be effectively reduced, so that the situation that the output precision of the inertial navigation device is reduced due to accumulated offset errors generated by the inertial navigation device is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a shock absorbing device and a UAV. Background Art

[0002] An inertial navigation unit (INU) is an autonomous navigation system that does not rely on external information or radiate energy. It operates in environments including air and ground, as well as underwater. The basic operating principle of an INU is based on Newtonian mechanics. By measuring the acceleration of a vehicle in an inertial reference frame, integrating it with time, and transforming it into a navigation coordinate system, information such as velocity, yaw angle, and position in that coordinate system can be obtained.

[0003] In the related art, an inertial navigation device is applied to a drone. When the drone is subjected to flight testing, the vibration caused by the motor in the drone causes the inertial navigation device to generate a cumulative bias error, resulting in a reduction in the output accuracy of the inertial navigation device. To this end, the present invention provides a shock absorbing device. Utility Model Content

[0004] A first aspect of the present invention provides a shock absorbing device to address the above-mentioned technical defects in the prior art. The device can effectively reduce the impact of vibration generated by the carrier used by the inertial navigation device on the inertial navigation device, thereby avoiding the inertial navigation device from generating cumulative bias errors, which would lead to reduced output accuracy of the inertial navigation device.

[0005] A second aspect of the present invention provides a drone.

[0006] A first aspect of the present invention provides a shock absorbing device, comprising a base, an adapter and a connecting member.

[0007] The base is provided with a plurality of positioning parts extending along the height direction of the base.

[0008] The adapter is spaced apart from the base, and the adapter is provided with the same number of first mounting parts and second mounting parts, the positions of the first mounting parts and the second mounting parts correspond to each other, the number of the first mounting parts or the second mounting parts corresponds to the number of the positioning parts, and the first mounting part is connected to the positioning part.

[0009] One end of the connecting member is connected to the second mounting portion, and the other end is suitable for mounting an inertial navigation device, so that a gap is formed between the inertial navigation device and the base.

[0010] The shock absorbing device provided by the present invention further includes a first shock absorbing member, which is arranged between the positioning portion and the first mounting portion and is connected to the positioning portion and the first mounting portion respectively.

[0011] According to the shock-absorbing device provided by the present utility model, the first shock-absorbing member includes a rubber shock absorber, and the rubber shock absorber is detachably connected to the positioning portion and the first mounting portion respectively.

[0012] According to the shock-absorbing device provided by the present utility model, it further includes a second shock-absorbing member. The second shock-absorbing member is disposed between the base and the adapter, and is connected to the base and the adapter respectively. The contact surface of the second shock-absorbing member with the adapter is flush with the contact surface of the first shock-absorbing member with the adapter.

[0013] According to the shock-absorbing device provided by the present utility model, a plurality of fixing portions are provided on the base. The shape of the fixing portion is adapted to the shape of the bottom of the second shock-absorbing member. Each fixing portion is located between two adjacent positioning portions, and the second shock-absorbing member is disposed on the corresponding fixing portion.

[0014] According to the shock-absorbing device provided by the present utility model, a first rib plate is connected between the fixing portion and the positioning portion, and a second rib plate is connected between two adjacent fixing portions.

[0015] According to the shock-absorbing device provided by the present utility model, the top view of the base is a regular polygon, and the first shock-absorbing member and the second shock-absorbing member are arranged at intervals at each vertex of the regular polygon.

[0016] According to the shock-absorbing device provided by the present utility model, a plurality of fixing portions are provided on the base. Each fixing portion is located between two adjacent positioning portions. A second shock-absorbing member is provided on the fixing portion. The second shock-absorbing member is connected to the adapter. The contact surface of the second shock-absorbing member with the adapter is flush with the contact surface of the positioning portion with the adapter.

[0017] According to the shock-absorbing device provided by the present utility model, the second shock-absorbing member includes a damping spring shock absorber, and the damping spring shock absorber is detachably connected to the base and the adapter respectively.

[0018] In the second aspect of the present utility model, a drone is provided, which includes a mounting platform and the shock-absorbing device according to any one of the above, and the shock-absorbing device is disposed on the mounting platform.

[0019] The shock absorption device provided by the present utility model is provided with a plurality of positioning parts extending along the height direction of the base itself, so that the first mounting part of the adapter is connected to the corresponding positioning part, and the inertial navigation device is mounted on the second mounting part of the adapter through a connecting piece, forming a gap between the inertial navigation device and the base, that is, the inertial navigation device does not contact the base. It is equivalent to that the inertial navigation device is suspended relative to the main structure of the base through the positioning parts, the adapter and the connecting piece on the base. When the inertial navigation device is mounted on the use carrier (the mounting platform of the unmanned aerial vehicle) through the shock absorption device, the main structure of the base contacts the use carrier. When the use carrier transmits its own vibration to the base and the base vibrates synchronously, the gap between the base and the inertial navigation device buffers part of the vibration to reduce the impact of the vibration on the inertial navigation device.

[0020] Compared with the related art, in the related art, the inertial navigation device is mounted on the use carrier through a bracket, the bracket contacts the use carrier, and the inertial navigation device directly contacts the bracket. The shock absorption device provided by the embodiment of the present utility model is applied to the use scenario of the inertial navigation device, which can effectively reduce the impact of the vibration generated by the use carrier on the inertial navigation device, thereby avoiding the cumulative bias error generated by the inertial navigation device and reducing the output accuracy of the inertial navigation device.

[0021] The unmanned aerial vehicle provided by the present utility model includes the above-mentioned shock absorption device, so it has all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 It is a schematic structural diagram of the shock absorption device provided by Embodiment 1 of the present utility model.

[0024] Figure 2 It is a schematic structural diagram of the base in the shock absorption device provided by Embodiment 1 of the present utility model.

[0025] Figure 3 It is a schematic structural diagram of the adapter in the shock absorption device provided by Embodiment 1 of the present utility model.

[0026] Figure 4 It is a schematic structural diagram of the shock absorption device provided by Embodiment 2 of the present utility model.

[0027] Figure 5 It is a schematic structural diagram of the shock absorption device provided by Embodiment 3 of the present utility model.

[0028] Figure 6 It is a schematic structural diagram of the shock absorption device provided in the fourth embodiment of the present utility model.

[0029] Figure 7 It is a schematic diagram of the usage state of the shock absorption device provided in the embodiment of the present invention.

[0030] Reference numerals:

[0031] 10. Base; 11. Positioning part; 12. Fixing part; 13. First rib plate; 14. Second rib plate;

[0032] 20. Adapter; 21. First mounting part; 22. Second mounting part; 23. Mounting hole;

[0033] 30. Connecting piece; 40. First shock absorber; 50. Second shock absorber; 60. Inertial navigation device; 70. Mounting platform. Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0036] In the embodiments of the present application, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] Figure 1 is a schematic structural diagram of the shock absorption device provided in the first embodiment of the present utility model. Figure 2 is a schematic structural diagram of the base in the shock absorption device provided in the first embodiment of the present utility model. Figure 3 is a schematic structural diagram of the adapter in the shock absorption device provided in the first embodiment of the present utility model.

[0039] Refer to Figures 1 to 3 , the embodiments of the present utility model provide a shock absorption device, which can be used for drones, especially for tethered drones. A tethered drone is a special form of a multi-rotor drone that uses ground power transmitted through a tether cable as a power source instead of traditional lithium batteries and can hover in the air for a long time. In addition, the shock absorption device can also be used for other devices involving an inertial navigation device 60, mainly for providing a shock absorption effect for the inertial navigation device 60. The shock absorption device includes a base 10, an adapter 20, and a connecting member 30.

[0040] The base 10 serves as a support carrier of the shock absorption device. On the one hand, it is used to support the weight of the adapter 20 and the inertial navigation device 60. On the other hand, it is used to connect to the use carrier of the inertial navigation device 60 (such as the installation platform 70 of the drone). The base 10 is provided with a plurality of cylindrical positioning portions 11 extending along its height direction, that is, the positioning portions 11 protrude from the main body surface of the base 10.

[0041] The adapter 20 is spaced from the base 10. The adapter 20 is provided with the same number of first mounting portions 21 and second mounting portions 22. The adapter 20 has an approximately annular structure. The first mounting portion 21 extends outward from the outer circumferential surface of the adapter 20, and the second mounting portion 22 is located on the adapter 20 itself or extends inward from the inner circumferential surface of the adapter 20. Therefore, it is equivalent that the first mounting portion 21 is located outside the adapter 20 and the second mounting portion 22 is located inside the adapter 20. When the inertial navigation device 60 is installed in the shock-absorbing device, it is equivalent to being located inside the entire shock-absorbing device. Connecting holes are formed in both the first mounting portion 21 and the second mounting portion 22. The positions of the first mounting portion 21 and the second mounting portion 22 correspond to each other, the number of the first mounting portion 21 or the second mounting portion 22 corresponds to the number of the positioning portions 11, and the first mounting portion 21 is connected to the positioning portion 11.

[0042] Wherein, the distance between the adapter 20 and the base 10 is related to the height of the positioning portion 11. The higher the height of the positioning portion 11, the greater the distance between the adapter 20 and the base 10. The installation height of the adapter 20 relative to the base 10 is determined according to the structural volume of the inertial navigation device 60, mainly to ensure that the inertial navigation device 60 will not directly contact the base 10 after being installed in the shock-absorbing device.

[0043] The connecting member 30 can be a columnar structure, such as a cylindrical or prismatic structure. One end of the connecting member 30 is connected to the second mounting portion 22, and the other end of the connecting member 30 is adapted to install the inertial navigation device 60, so that a gap is formed between the inertial navigation device 60 and the base 10, that is, the inertial navigation device 60 does not contact the base 10. That is, threaded holes can be provided at both ends of the connecting member 30, so that the connecting member 30 is threadedly connected to the adapter 20 and the inertial navigation device 60.

[0044] In this embodiment, the inertial navigation device 60 is suspended relative to the main structure of the base 10 through the positioning portion 11, the adapter 20 and the connecting member 30 on the base 10. When the inertial navigation device 60 is installed on the use carrier (the mounting platform 70 of the unmanned aerial vehicle) through the shock-absorbing device, the main structure of the base 10 contacts the use carrier. When the use carrier transmits its own vibration to the base 10 and the base 10 vibrates synchronously, the gap between the base 10 and the inertial navigation device 60 buffers part of the vibration to reduce the influence of the vibration on the inertial navigation device 60.

[0045] It can be understood that for the shock absorption device provided by the embodiment of the present utility model, a plurality of positioning portions 11 are arranged on the base 10 along the height direction of the base 10 itself, so that the first mounting portion 21 of the adapter 20 is connected to the corresponding positioning portion 11, and the inertial navigation device 60 is mounted on the second mounting portion 22 of the adapter 20 through the connecting member 30, so that a gap is formed between the inertial navigation device 60 and the base 10, that is, the inertial navigation device 60 does not contact the base 10. It is equivalent to that the inertial navigation device 60 is suspended relative to the main structure of the base 10 through the positioning portion 11, the adapter 20 and the connecting member 30 on the base 10. When the inertial navigation device 60 is mounted on the use carrier (the mounting platform 70 of the unmanned aerial vehicle) through the shock absorption device, the main structure of the base 10 contacts the use carrier, and when the use carrier transmits its own vibration to the base 10 and makes the base 10 vibrate synchronously, the gap between the base 10 and the inertial navigation device 60 buffers part of the vibration to reduce the influence of the vibration on the inertial navigation device 60.

[0046] Compared with the related art, in the related art, the inertial navigation device 60 is mounted on the use carrier through a bracket, the bracket contacts the use carrier, and the inertial navigation device 60 directly contacts the bracket. The shock absorption device provided by the embodiment of the present utility model is applied to the use scenario of the inertial navigation device 60, and can effectively reduce the influence of the vibration generated by the use carrier on the inertial navigation device 60, thereby avoiding the generation of cumulative bias errors of the inertial navigation device 60 and reducing the output accuracy of the inertial navigation device 60.

[0047] Figure 4 FIG. 7 is a schematic structural diagram of the shock absorption device provided by the second embodiment of the present utility model.

[0048] Continue to refer to Figure 1 and at the same time refer to Figure 4 Based on the above embodiment, different from the above embodiment, the shock absorption device further includes a first shock absorption member 40, and the first shock absorption member 40 is arranged between the positioning portion 11 and the first mounting portion 21 and is respectively connected to the positioning portion 11 and the first mounting portion 21.

[0049] It is equivalent to that by arranging the first shock absorption member 40 between the positioning portion 11 and the first mounting portion 21, not only the height of the gap formed between the inertial navigation device 60 and the base 10 is increased, but also the first shock absorption member 40 itself has a shock absorption effect, so that the shock absorption effect of the shock absorption device is better.

[0050] Among them, the first shock-absorbing member 40 includes a rubber shock absorber, which can be a shock-absorbing element made of rubber material such as a rubber sheet or a rubber block. In addition, the first shock-absorbing member 40 can also be a damping shock-absorbing member. The damping shock-absorbing member is usually designed in a cylindrical shape and contains elastic material and damping material inside, which can provide shock-absorbing effects in multiple directions and can provide effective shock absorption in a wider frequency range, and is suitable for environments where high-frequency and low-frequency vibrations coexist.

[0051] In the embodiment of the present invention, a threaded post can be provided at one end of the first shock-absorbing member 40, a threaded hole can be provided at the other end of the first shock-absorbing member 40, and a threaded hole can be opened at the top of the positioning portion 11, so that the first shock-absorbing member 40 is connected to the threaded hole of the positioning portion 11 through the threaded post. The adapter 20 is installed on the first shock-absorbing member 40 by passing a structure such as a bolt through the connection hole on the first mounting portion 21 and the threaded hole of the first shock-absorbing member 40.

[0052] Figure 5 It is a schematic structural diagram of the shock-absorbing device provided by the third embodiment of the present invention.

[0053] Continue to refer to Figure 1 and at the same time refer to Figure 5 Based on the above embodiment, different from the above embodiment, the shock-absorbing device further includes a second shock-absorbing member 50. The second shock-absorbing member 50 is disposed between the base 10 and the adapter 20 and is respectively connected to the base 10 and the adapter 20. The contact surface of the second shock-absorbing member 50 and the adapter 20 is flush with the contact surface of the first shock-absorbing member 40 and the adapter 20.

[0054] Equivalently, in this embodiment, not only the first shock-absorbing member 40 needs to be provided between the positioning portion 11 and the first mounting portion 21, but also the second shock-absorbing member 50 needs to be provided between the base 10 and the adapter 20. Due to the shock-absorbing effects of the first shock-absorbing member 40 and the second shock-absorbing member 50 themselves, the shock-absorbing effect of the shock-absorbing device can be further improved.

[0055] At the same time, the contact surface of the second shock-absorbing member 50 and the adapter 20 is flush with the contact surface of the first shock-absorbing member 40 and the adapter 20, which can ensure that the adapter 20 is located on the same horizontal plane. When the vibration effect is transmitted to the inertial navigation device 60 through the positioning portion 11, the adapter 20 and the connecting member 30, the first shock-absorbing member 40 and the second shock-absorbing member 50 can synchronously achieve the shock-absorbing function to prevent the generation of height differences on the planes where the first shock-absorbing member 40 and the second shock-absorbing member 50 contact the adapter 20, and thus prevent the shock-absorbing device itself from generating vibrations.

[0056] Among them, the contact surface of the second shock-absorbing member 50 and the adapter 20 can be understood as the upper surface or top surface of the second shock-absorbing member 50. The contact surface of the first shock-absorbing member 40 and the adapter 20 can be understood as the upper surface or top surface of the first shock-absorbing member 40.

[0057] Continue to refer to Figure 2 and Figure 3 In some embodiments of the present utility model, a plurality of fixing parts 12 are arranged on the base 10. The shape of the fixing part 12 is adapted to the bottom shape of the second shock-absorbing member 50. Each fixing part 12 is located between two adjacent positioning parts 11, and the second shock-absorbing member 50 is arranged on the corresponding fixing part 12.

[0058] That is, the first shock-absorbing member 40 and the second shock-absorbing member 50 are arranged at intervals on the base 10. When the adapter 20 is installed on the base 10 through the first shock-absorbing member 40 and the second shock-absorbing member 50, it can further ensure that the adapter 20 enables the first shock-absorbing member 40 and the second shock-absorbing member 50 to achieve the shock-absorbing function synchronously.

[0059] In this embodiment, a connecting seat can be arranged at the bottom of the second shock-absorbing member 50, a threaded hole can be opened at the top of the second shock-absorbing member 50, a connecting hole can be arranged on the fixing part 12 at the same time, and an installation hole 23 can be opened on the adapter 20. Structures such as bolts are used to connect the connecting seat of the second shock-absorbing member 50 with the connecting hole, and structures such as bolts are used to pass through the installation hole 23 and connect with the threaded hole of the second shock-absorbing member 50.

[0060] Continue to refer to Figure 2 and Figure 3 In some embodiments of the present utility model, a first rib plate 13 is connected between the fixing part 12 and the positioning part 11, and a second rib plate 14 is connected between two adjacent fixing parts 12.

[0061] That is, in addition to arranging the fixing part 12 and the positioning part 11 on the base 10, and connecting a first rib plate 13 between the fixing part 12 and the positioning part 11, and connecting a second rib plate 14 between two adjacent fixing parts 12, other parts can be arranged in a hollowed-out manner, so as to achieve the purpose of reducing the weight of the base 10, which is beneficial to broadening the application scenarios of the shock-absorbing device.

[0062] Continue to refer to Figure 2 and Figure 3 In some embodiments of the present utility model, the top view of the base 10 is a regular polygon, and the first shock-absorbing member 40 and the second shock-absorbing member 50 are arranged at intervals at the vertices of the regular polygon.

[0063] With such an arrangement, not only can it ensure that the first shock-absorbing member 40 and the second shock-absorbing member 50 achieve the shock-absorbing function synchronously, but also it can save the installation space of the shock-absorbing device, making the structural arrangement of the use carrier of the inertial navigation device 60 more reasonable.

[0064] This embodiment realizes a double weight reduction effect by using the first shock-absorbing member 40 and the second shock-absorbing member 50 between the base 10 and the adapter 20, and can adapt to more application scenarios.

[0065] Figure 6 It is a schematic structural diagram of the shock absorption device provided in the fourth embodiment of the present invention.

[0066] Continue to refer to Figure 1 and simultaneously refer to Figure 6 Based on the above embodiments, different from the above embodiments, a plurality of fixing parts 12 are arranged on the base 10, each fixing part 12 is located between two adjacent positioning parts 11, a second shock absorption member 50 is arranged on the fixing part 12, the second shock absorption member 50 is connected to the adapter 20, and the contact surface between the second shock absorption member 50 and the adapter 20 is flush with the contact surface between the positioning part 11 and the adapter 20.

[0067] Equivalently, in the embodiment of the present invention, no first shock absorption member 40 is arranged between the base 10 and the adapter 20, and only the second shock absorption member 50 is arranged, that is, the second shock absorption member 50 is installed on the fixing part 12, the second shock absorption member 50 and the columnar positioning part 11 are arranged at intervals, and the adapter 20 is connected to the main structures of the positioning part 11 and the base 10 through the second shock absorption member 50, and good shock absorption effect can also be achieved.

[0068] In some embodiments of the present invention, the second shock absorption member 50 includes a damping spring shock absorber, also known as a prestressed spring shock absorber, which has the dual advantages of low frequency and large damping of a steel spring shock absorber and eliminates the inherent resonance amplitude phenomenon of the steel spring. The damping spring shock absorber is made of spring steel, can convert vibration energy into heat energy, thereby reducing the amplitude and duration of vibration, has better shock absorption effect and stability, can provide consistent shock absorption performance for a long time, has the dual advantages of low frequency and large damping of a steel spring shock absorber, eliminates the inherent resonance amplitude phenomenon of the steel spring, has different responses to vibrations of different frequencies, and can effectively isolate vibrations in a specific frequency range.

[0069] To sum up, the shock absorption device provided by the embodiment of the present invention can achieve the following purposes:

[0070] First, it can effectively reduce the influence of high-frequency vibration on the inertial navigation device 60.

[0071] High-frequency vibration will generate noise and errors in the inertial navigation device 60, resulting in inaccurate final navigation data output by the system. The shock absorption device provided by the embodiment of the present invention can isolate and absorb these high-frequency vibrations to ensure that the sensor can obtain more stable and accurate measurement data of acceleration and angular velocity.

[0072] Second, it can effectively reduce the influence of low-frequency vibration on the inertial navigation device 60.

[0073] Low-frequency vibration has significant negative impacts on aspects such as error accumulation, sensor drift, increased system noise, filter design challenges, structural resonance, and the installation and calibration of the inertial navigation device 60. The shock-absorbing device provided in the embodiment of the present utility model can absorb low-frequency vibration to improve the reliability of the inertial navigation device 60.

[0074] Thirdly, it can effectively improve the accuracy of the inertial navigation device 60 and enhance the system stability of the inertial navigation device 60.

[0075] The inertial navigation device 60 relies on high-precision accelerometers and gyroscopes to measure motion and attitude. Any external mechanical interference will affect the accuracy of the sensors. The shock-absorbing device provided in the embodiment of the present utility model can effectively reduce these interferences, make the operation of the inertial navigation device 60 more stable, reduce error accumulation, provide more reliable navigation information, and thus improve the overall accuracy of the system.

[0076] Fourthly, it can effectively reduce the impact damage to the inertial navigation device 60 and extend the service life of the inertial navigation device 60.

[0077] The inertial navigation device 60 is very sensitive to mechanical shocks, and the hardware circuit of the system may cause damage or performance degradation of the inertial navigation device 60 under long-term severe shocks. The shock-absorbing device provided in the embodiment of the present utility model can buffer the shocks, protect the hardware of the inertial navigation device 60, reduce the mechanical stress on the inertial navigation device 60, and extend its service life.

[0078] Moreover, the shock-absorbing device provided in the embodiment of the present utility model has a simple structure, is convenient to disassemble and assemble, and is convenient for replacing the corresponding shock-absorbing parts; the structural layout is scientific and reasonable, can be installed in a limited space, comprehensively considers the shock-absorbing effect and the maximum compression amount, and leaves sufficient free movement space for the inertial navigation device 60; at the same time, the installation positions of the corresponding shock-absorbing parts are on the same horizontal plane as devices such as accelerometers and gyroscopes in the inertial navigation device 60, which can enhance the shock-absorbing effect. The base 10 is structurally improved to achieve reasonable weight reduction and can be compatible with mounted devices.

[0079] In addition, the shock-absorbing device provided in the embodiment of the present utility model can achieve multiple shock-absorbing effects according to the usage scenario by using the structural shock absorption of the shock-absorbing device itself, adding a first shock-absorbing part, adding a second shock-absorbing part, and combining the three, so as to be applicable to working conditions with complex vibration environments.

[0080] Figure 7 It is a schematic diagram of the usage state of the shock-absorbing device provided in the embodiment of the present invention.

[0081] Refer to Figure 7 The embodiment of the present utility model further provides an unmanned aerial vehicle, which includes an installation platform 70 and the shock-absorbing device of any one of the above, and the shock-absorbing device is arranged on the installation platform 70.

[0082] Since the inertial navigation device 60 has a fixed drift rate, which will cause errors in the navigation data, and the errors will accumulate over time, resulting in poor accuracy after long-term use. Therefore, the present utility model provides a drone. After multiple tests on changing the installation position of the inertial navigation device 60, it is determined that when the inertial navigation device 60 is located at the center position of the installation platform 70 and the center position of the drone, the performance is better. Therefore, for the drone provided by the embodiment of the present utility model, the inertial navigation device 60 is arranged at the center position of the installation platform 70 through a shock-absorbing device.

[0083] Moreover, due to the center position of the installation platform 70, there are devices such as a PDU and a conversion joint inside the box body, and the space limitation is relatively high. Therefore, the shock-absorbing device provided by the embodiment of the present utility model has been structurally improved, so that the structural layout of the shock-absorbing device is scientific and reasonable, and it can be installed within the limited space. At the same time, the base 10 has been structurally improved to achieve reasonable weight reduction and interface compatibility with mounted devices.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A shock-absorbing device, characterized in that, Comprising: A base, which is provided with a plurality of positioning parts extending along its height direction; An adapter, which is arranged at an interval from the base. The adapter is provided with a first mounting part and a second mounting part with the same number. The positions of the first mounting part and the second mounting part correspond to each other. The number of the first mounting part or the second mounting part corresponds to the number of the positioning parts. The first mounting part is connected to the positioning part; A connecting piece, one end of which is connected to the second mounting part, and the other end is adapted to mount an inertial navigation device, so that a gap is formed between the inertial navigation device and the base.

2. The shock absorber according to claim 1, characterized in that, It further comprises a first shock absorber, which is arranged between the positioning part and the first mounting part and is respectively connected to the positioning part and the first mounting part.

3. The shock absorption device according to claim 2, characterized in that, The first shock absorber comprises a rubber shock absorber, and the rubber shock absorber is respectively detachably connected to the positioning part and the first mounting part.

4. The shock absorption device according to claim 2, wherein, It further comprises a second shock absorber, which is arranged between the base and the adapter and is respectively connected to the base and the adapter. The contact surface of the second shock absorber with the adapter is flush with the contact surface of the first shock absorber with the adapter.

5. The shock absorption device according to claim 4, characterized in that, A plurality of fixing parts are arranged on the base. The shape of the fixing part is adapted to the bottom shape of the second shock absorber. Each fixing part is located between two adjacent positioning parts, and the second shock absorber is arranged on the corresponding fixing part.

6. The shock absorption device according to claim 5, characterized in that, A first rib plate is connected between the fixing part and the positioning part, and a second rib plate is connected between two adjacent fixing parts.

7. The shock absorber according to claim 4, characterized in that The top view of the base is a regular polygon, and the first shock absorber and the second shock absorber are arranged at intervals at each vertex of the regular polygon.

8. The shock absorption device according to claim 1, characterized in that, A plurality of fixing parts are arranged on the base. Each fixing part is located between two adjacent positioning parts. A second shock absorber is arranged on the fixing part. The second shock absorber is connected to the adapter. The contact surface of the second shock absorber with the adapter is flush with the contact surface of the positioning part with the adapter.

9. The shock-absorbing device according to any one of claims 4 to 8, characterized in that, The second shock absorber comprises a damping spring shock absorber, and the damping spring shock absorber is respectively detachably connected to the base and the adapter.

10. A drone, characterized in that, Comprising a mounting platform and the shock absorption device according to any one of claims 1 to 9, and the shock absorption device is arranged on the mounting platform.

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