A shock absorbing device for a drone gimbal

Abstract

The present invention relates to the technical field of drone gimbals, and specifically to a shock-absorbing device for a drone gimbal, comprising an upper mounting plate and a lower mounting plate, a bracket, a first shock-absorbing mechanism, and a second shock-absorbing mechanism. The first shock-absorbing mechanism comprises four upper fixing plates, four lower fixing plates, four sliding assemblies, four buffer assemblies, and four guide assemblies; the second shock-absorbing mechanism comprises a fixed block, a transmission assembly, a rotating assembly, a telescopic assembly, four first magnets, and four second magnets. By providing the first shock-absorbing mechanism, the influence of the vertical force generated during the vibration of the drone on the camera can be effectively reduced. By utilizing the second shock-absorbing mechanism, the influence of the lateral force generated during the vibration of the drone on the camera can be effectively reduced. In combination with the first shock-absorbing mechanism and the second shock-absorbing mechanism, the vibration transmitted from the drone to the camera can be buffered, the camera can be reduced from being shaken significantly, and this is conducive to ensuring the stability of the camera.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle (UAV) gimbals, and in particular to a shock absorbing device for an UAV gimbal. Background Art

[0002] A drone gimbal refers to a supporting device used by drones to install and fix mission payloads such as cameras. When a drone is flying, the high-frequency vibration of the engine, the vortex generated by the propeller, and the influence of strong external winds will lead to poor camera shooting quality. By using a drone gimbal, camera vibration can be reduced, thereby improving the stability and clarity of the captured image.

[0003] The existing Chinese patent with patent publication number CN209351615U discloses a drone gimbal shock absorption device, including a lower positioning plate, eight fixing rods fixedly connected to the lower positioning plate, each fixing rod is 45° apart from the connecting rod, and the top of the fixing rod is slidably connected to the upper positioning plate. The drone gimbal shock absorption device is composed of a first shock absorption device through a second spring and a second telescopic rod, and a second shock absorption device through a shock-absorbing air cushion. A double vertical shock absorption assembly is adopted to improve the shock absorption effect of the gimbal and stabilize the structure. The lower shock absorption plate and the upper shock absorption plate are fixed in an eight-shaped manner by the first telescopic rod, the first spring, the third spring and the third telescopic rod to reduce the upper and lower vibrations of the lower shock absorption plate and the upper shock absorption plate.

[0004] Although the above-mentioned drone gimbal shock-absorbing device can achieve multi-level shock absorption, it can only absorb the vertical force generated by the drone's vibration. When encountering strong airflow, the lateral vibration generated by the drone will be transmitted to the camera through the gimbal, causing the camera to experience significant turbulence and unable to ensure camera stability. To address this problem, a shock-absorbing device for a drone gimbal is now provided. Summary of the Invention

[0005] The object of the present invention is to provide a shock absorbing device for a UAV gimbal to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A shock absorbing device for a drone gimbal includes an upper mounting plate and a lower mounting plate, wherein the lower mounting plate is arranged at the bottom end of the upper mounting plate, and further includes a bracket, a first shock absorbing mechanism, and a second shock absorbing mechanism;

[0008] The bracket is installed at the middle of the bottom end of the lower mounting plate, the first shock absorbing mechanism is installed between the upper mounting plate and the lower mounting plate, and the second shock absorbing mechanism is located between the first shock absorbing mechanism and the bracket;

[0009] The first shock absorbing mechanism includes four upper fixing plates, four lower fixing plates, four sliding assemblies, four buffer assemblies and four guide assemblies. The four upper fixing plates are equidistantly mounted on the bottom end of the upper mounting plate, each lower fixing plate is located below an upper fixing plate, and each lower fixing plate is fixed to the top end of the lower mounting plate. The four sliding assemblies are each located between an upper fixing plate and a lower fixing plate, each buffer assembly is located between a lower fixing plate and a sliding assembly, and the four guide assemblies are equidistantly arranged between the upper mounting plate and the lower mounting plate.

[0010] The second shock absorbing mechanism includes a fixed block, a transmission assembly, a rotating assembly, a telescopic assembly, four first magnets and four second magnets. The fixed block is fixedly mounted on the surface of the bracket, the four first magnets are respectively fixed on the four sides of the bracket, each second magnet is located on the side of a first magnet away from the bracket, the telescopic assembly is installed between the four second magnets, the rotating assembly is located on one side of the telescopic assembly, and the transmission assembly is located between the rotating assembly and one of the guide assemblies.

[0011] As a further solution of the present invention: each sliding assembly includes a pressure block, two sliders, four side plates, four guide rods and four connecting rods. The pressure block is fixedly installed at the bottom end of the upper fixed plate, each two side plates are fixed at one end of the lower fixed plate, each two guide rods are fixed between the two side plates, each slider is slidably set on the two guide rods at the same end, each two connecting rods are respectively hinged to the two ends of a slider, and the other end of each connecting rod is hinged to the pressure block.

[0012] As a further solution of the present invention: each buffer assembly includes four first springs and four second springs, each first spring is sleeved on a guide rod, and each first spring is located on a side of the two sliders away from each other, and both ends of each first spring are respectively connected to the slider and the side plate;

[0013] Each second spring is sleeved on a guide rod, and each second spring is located on a side where the two sliders are close to each other, and both ends of each second spring are respectively connected to the slider and the side plate.

[0014] As a further solution of the present invention: each guide assembly includes an insertion rod and a positioning cylinder, the positioning cylinder is fixedly mounted on the lower mounting plate, the insertion rod is slidably arranged inside the positioning cylinder, and the top end of the insertion rod is fixedly connected to the upper mounting plate.

[0015] As a further solution of the present invention: the telescopic assembly includes an annular housing, a circular table, an annular turntable, four movable rods, four slide grooves, four movable seats, four insertion rods and four arc-shaped grooves, the annular housing is sleeved on the outside of the fixed block, the circular table is fixed to the top of the annular housing, the annular turntable is rotatably arranged on the top of the circular table, and the four movable rods are equidistantly slidably arranged on the annular housing, one end of each movable rod is fixedly connected to a second magnet, and the other end of each movable rod is fixedly connected to a movable seat;

[0016] Four slide grooves are equidistantly opened on the circular table, and four arcuate grooves are equidistantly opened on the annular turntable. Each movable seat is slidably set in a slide groove, one end of each insertion rod is fixed on a movable seat, and the other end of each insertion rod passes through a slide groove and is inserted into the inside of an arcuate groove.

[0017] As a further solution of the present invention: a plurality of connecting frames are fixed to the bottom end of the annular casing, and the other end of each connecting frame is connected to the fixing block.

[0018] As a further solution of the present invention: the rotating assembly includes a first mounting frame, a disc and a hinged rod, the first mounting frame is fixed on one side of the circular table, the disc is rotatably set on the first mounting frame, one end of the hinged rod is hinged to the top surface of the disc, and the other end of the hinged rod is hinged to the top surface of the annular turntable.

[0019] As a further solution of the present invention: the transmission assembly includes a vertical rod, a connecting rod, a rack, a gear, a second bevel gear, a first bevel gear and a second mounting bracket;

[0020] The connecting rod is fixedly installed at the bottom end of one of the insertion rods, the vertical rod is fixed at the bottom end of the connecting rod, the rack is fixed at one side of the vertical rod, the second mounting bracket is fixedly installed at the bottom end of the first mounting bracket, the first bevel gear is located at the bottom end of the first mounting bracket and is coaxially fixedly connected to the disc, the second bevel gear is rotatably set on one side of the second mounting bracket, the first bevel gear and the second bevel gear are meshed with each other, the gear is fixed on one side of the second bevel gear and is coaxially arranged with the second bevel gear, and the gear and the rack are meshed with each other.

[0021] As a further solution of the present invention, the magnetic poles of each first magnet and each second magnet at one end close to each other are the same.

[0022] As a further solution of the present invention: a plurality of through slots and through holes are provided on both the upper mounting plate and the lower mounting plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. A shock-absorbing device for a drone gimbal of the present invention can effectively reduce the impact of the vertical force generated during the vibration of the drone on the camera by providing a first shock-absorbing mechanism. Utilizing a second shock-absorbing mechanism, it can effectively reduce the impact of the lateral force generated during the vibration of the drone on the camera. Thus, the combination of the first shock-absorbing mechanism and the second shock-absorbing mechanism can buffer the vibration transmitted from the drone to the camera, reduce the occurrence of large bumps in the camera, and help ensure the stability of the camera.

[0025] 2. The shock-absorbing device of the present invention is used for a drone gimbal. When the force generated by the vibration of the drone is small, the drone transmits the force generated by the vibration to the upper mounting plate. Through multiple guide rods, sliders, first springs, second springs, etc., it can effectively buffer the vertical force and improve the stability and clarity of the captured image.

[0026] 3. The shock-absorbing device for a drone gimbal of the present invention can effectively eliminate the vertical force by utilizing a first shock-absorbing mechanism when the drone vibrates and generates both lateral and vertical forces. Four first magnets and four second magnets are used to form a resistance between the first magnets and the second magnets. This resistance can offset the lateral force and reduce significant shaking of the camera.

[0027] 4. A shock absorbing device for a drone gimbal of the present invention, when the force generated by the vibration of the drone is greater, that is, the distance the insertion rod moves downward under the action of the force is greater, the second magnet can be driven to move through the transmission assembly, the rotation assembly and the telescopic assembly, so that the second magnet can move toward the side close to the first magnet, which can increase the resistance between the second magnet and the first magnet, thereby further improving the stability of the bracket, thereby improving the stability of the camera on the bracket, that is, when the force generated by the vibration of the drone is greater, the resistance between the first magnet and the second magnet is greater, and the camera on the bracket is more stable, so that the camera can be used in a variety of environments, so that the gimbal can automatically adjust the resistance between the first magnet and the second magnet according to the force generated by the vibration of the drone, thereby achieving an adaptive adjustment effect on the stability of the camera. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0029] Figure 2 The structure of the present invention is schematically shown Figure 2 .

[0030] Figure 3 The structure diagram of the second shock absorbing mechanism in the present invention is shown as follows: Figure 1 .

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of part A.

[0032] Figure 5 The structure diagram of the second shock absorbing mechanism in the present invention is shown as follows: Figure 2 .

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of part B.

[0034] Figure 7 It is a schematic diagram of the split structure of the upper mounting plate and the lower mounting plate in the present invention.

[0035] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of part C.

[0036] Among them: 11. Upper mounting plate; 12. Lower mounting plate; 13. Upper fixed plate; 14. Lower fixed plate; 15. Side plate; 16. Guide rod; 17. Slider; 18. First spring; 19. Second spring; 20. Press block; 21. Connecting rod; 22. Insert rod; 23. Positioning cylinder; 24. Bracket; 25. Fixed block; 26. First magnet; 27. Round table; 28. Annular casing; 29. ​​Second magnet; 30. Moving rod; 31. Slide groove; 32. Moving seat; 33. Insert rod; 34. Annular turntable; 35. Arc groove; 36. First mounting bracket; 37. Second mounting bracket; 38. Disc; 39. Articulated rod; 40. First bevel gear; 41. Second bevel gear; 42. Gear; 43. Rack; 44. Vertical rod; 45. Connecting rod; 46. Connecting bracket; 47. Through hole; 48. Through groove. DETAILED DESCRIPTION

[0037] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0038] The present invention provides the following preferred embodiments:

[0039] like Figures 1-8 As shown, a shock absorption device for a drone gimbal includes an upper mounting plate 11 and a lower mounting plate 12. The lower mounting plate 12 is provided at the bottom end of the upper mounting plate 11. The device also includes a bracket 24, a first shock absorption mechanism, and a second shock absorption mechanism. In actual use, a camera is mounted on the bracket 24.

[0040] The bracket 24 is installed at the middle of the bottom end of the lower mounting plate 12, the first shock absorbing mechanism is installed between the upper mounting plate 11 and the lower mounting plate 12, and the second shock absorbing mechanism is located between the first shock absorbing mechanism and the bracket 24;

[0041] The first shock absorbing mechanism includes four upper fixing plates 13, four lower fixing plates 14, four sliding assemblies, four buffer assemblies and four guide assemblies. The four upper fixing plates 13 are equidistantly installed on the bottom end of the upper mounting plate 11, each lower fixing plate 14 is located below an upper fixing plate 13, and each lower fixing plate 14 is fixed to the top end of the lower mounting plate 12. The four sliding assemblies are located between an upper fixing plate 13 and a lower fixing plate 14, each buffer assembly is located between a lower fixing plate 14 and a sliding assembly, and the four guide assemblies are equidistantly arranged between the upper mounting plate 11 and the lower mounting plate 12.

[0042] When the force generated by the vibration of the drone is small, the drone transmits the force generated by the vibration to the upper mounting plate 11. Through the four upper fixing plates 13, four lower fixing plates 14, four sliding components, four buffer components and four guide components, the vertical force can be effectively buffered, thereby improving the stability and clarity of the captured image.

[0043] The second shock absorbing mechanism includes a fixed block 25, a transmission assembly, a rotating assembly, a telescopic assembly, four first magnets 26 and four second magnets 29. The fixed block 25 is fixedly mounted on the surface of the bracket 24. The four first magnets 26 are respectively fixed to the four side surfaces of the bracket 24. Each second magnet 29 is located on the side of a first magnet 26 away from the bracket 24. The telescopic assembly is mounted between the four second magnets 29. The rotating assembly is located on one side of the telescopic assembly. The transmission assembly is located between the rotating assembly and one of the guide assemblies.

[0044] When the drone vibrates and generates both lateral and vertical forces, the first shock-absorbing mechanism can effectively eliminate the vertical force. The four first magnets 26 and the four second magnets 29 form a resistance between the first magnets 26 and the second magnets 29. This resistance can offset the lateral force and reduce significant shaking of the camera.

[0045] By setting up the first shock-absorbing mechanism, the influence of the vertical force generated during the vibration of the drone on the camera can be effectively reduced. By using the second shock-absorbing mechanism, the influence of the lateral force generated during the vibration of the drone on the camera can be effectively reduced. Therefore, the combination of the first shock-absorbing mechanism and the second shock-absorbing mechanism can buffer the vibration transmitted from the drone to the camera, reduce the situation where the camera experiences large bumps, and help ensure the stability of the camera.

[0046] like Figures 1-8As shown, each sliding assembly includes a pressing block 20, two sliders 17, four side plates 15, four guide rods 16 and four connecting rods 21. The pressing block 20 is fixedly mounted on the bottom end of the upper fixed plate 13, each two side plates 15 are fixed to one end of the lower fixed plate 14, each two guide rods 16 are fixed between the two side plates 15, each slider 17 is slidably set on the two guide rods 16 at the same end, each two connecting rods 21 are respectively hinged to the two ends of a slider 17, and the other end of each connecting rod 21 is hinged to the pressing block 20;

[0047] When the vertical force generated during the vibration of the drone is transmitted to the upper mounting plate 11, the upper mounting plate 11 drives the upper fixed plate 13 and the lower mounting plate 12 to move downward. Under the action of the four connecting rods 21, the two sliders 17 can be driven to move away from each other on the guide rod 16.

[0048] like Figures 1-8 As shown, each buffer assembly includes four first springs 18 and four second springs 19. Each first spring 18 is sleeved on a guide rod 16 and is located on a side where two sliders 17 are away from each other. Both ends of each first spring 18 are connected to the slider 17 and the side plate 15 respectively.

[0049] Each second spring 19 is sleeved on a guide rod 16, and each second spring 19 is located on the side where the two sliders 17 are close to each other, and both ends of each second spring 19 are connected to the slider 17 and the side plate 15 respectively;

[0050] When the two sliders 17 move away from each other, the slider 17 squeezes the first spring 18 so that the first spring 18 is compressed. The rebound force of the compressed first spring 18 offsets the acting force, thereby buffering the vertical acting force generated during the vibration of the drone and achieving a shock-absorbing effect. At the same time, the second spring 19 can block the rapid return of the slider 17, thereby preventing the slider 17 from quickly returning to its original position, thereby preventing the bracket 24 and the camera on the bracket 24 from shaking, and effectively ensuring the stability of the camera.

[0051] like Figures 1-8 As shown, each guide assembly includes an insertion rod 22 and a positioning cylinder 23. The positioning cylinder 23 is fixedly mounted on the lower mounting plate 12. The insertion rod 22 is slidably arranged inside the positioning cylinder 23. The top end of the insertion rod 22 is fixedly connected to the upper mounting plate 11. The sliding connection between the insertion rod 22 and the positioning cylinder 23 can play a guiding role.

[0052] like Figures 1-8As shown, the telescopic assembly includes an annular housing 28, a circular table 27, an annular turntable 34, four moving rods 30, four slide grooves 31, four moving seats 32, four insertion rods 33 and four arc-shaped grooves 35. The annular housing 28 is sleeved on the outside of the fixed block 25, the circular table 27 is fixed to the top of the annular housing 28, the annular turntable 34 is rotatably set on the top of the circular table 27, and the four moving rods 30 are equidistantly slidably set on the annular housing 28. One end of each moving rod 30 is fixedly connected to a second magnet 29, and the other end of each moving rod 30 is fixedly connected to a moving seat 32.

[0053] Four chute grooves 31 are equidistantly formed on the circular table 27, and four arcuate grooves 35 are equidistantly formed on the annular turntable 34. Each movable seat 32 is slidably disposed within a chute 31. One end of each insertion rod 33 is fixed to a movable seat 32, and the other end of each insertion rod 33 passes through a chute 31 and is inserted into an arcuate groove 35.

[0054] When the rotating assembly is working, it can drive the annular turntable 34 to rotate on the circular table 27. When the annular turntable 34 rotates, it can drive the multiple arc grooves 35 to rotate, so that under the action of the insertion rod 33, the movable seat 32 can be driven to slide inside the slide groove 31. The movable seat 32 can drive the second magnet 29 to move through the movable rod 30, so that the second magnet 29 can move toward the side close to the first magnet 26, reducing the distance between the second magnet 29 and the first magnet 26, increasing the repulsive force between the first magnet 26 and the second magnet 29, improving the stability of the bracket 24, and thereby improving the stability of the camera on the bracket 24.

[0055] like Figures 1-8 As shown, a plurality of connecting frames 46 are fixed to the bottom end of the annular housing 28 , and the other end of each connecting frame 46 is connected to the fixing block 25 . The connecting frames 46 can be used to fix and install the annular housing 28 .

[0056] like Figures 1-8 As shown, the rotating assembly includes a first mounting frame 36, a disc 38 and a hinged rod 39. The first mounting frame 36 is fixed to one side of the circular table 27. The disc 38 is rotatably mounted on the first mounting frame 36. One end of the hinged rod 39 is hinged to the top surface of the disc 38, and the other end of the hinged rod 39 is hinged to the top surface of the annular turntable 34.

[0057] When the transmission assembly is working, it can drive the disc 38 to rotate on the first mounting bracket 36. At this time, under the action of the hinge rod 39, when the disc 38 rotates, it can drive the annular turntable 34 to rotate slightly.

[0058] like Figures 1-8 As shown, the transmission assembly includes a vertical rod 44, a connecting rod 45, a rack 43, a gear 42, a second bevel gear 41, a first bevel gear 40 and a second mounting bracket 37;

[0059] The connecting rod 45 is fixedly mounted on the bottom end of one of the insertion rods 22, the vertical rod 44 is fixed to the bottom end of the connecting rod 45, the rack 43 is fixed to one side of the vertical rod 44, the second mounting bracket 37 is fixedly mounted on the bottom end of the first mounting bracket 36, the first bevel gear 40 is located at the bottom end of the first mounting bracket 36 and is coaxially fixedly connected to the disc 38, the second bevel gear 41 is rotatably arranged on one side of the second mounting bracket 37, the first bevel gear 40 and the second bevel gear 41 are meshed with each other, the gear 42 is fixed to one side of the second bevel gear 41 and is coaxially arranged with the second bevel gear 41, and the gear 42 and the rack 43 are meshed with each other;

[0060] When the force generated by the vibration of the drone is greater, that is, the distance that the insertion rod 22 moves downward under the action of the force is greater, the insertion rod 22 can drive the rack 43 to move downward through the connecting rod 45 and the vertical rod 44. Since the rack 43 and the gear 42 are meshed with each other, the rack 43 can drive the gear 42 to rotate when it moves. The gear 42 drives the second bevel gear 41 coaxially connected thereto to rotate. Since the second bevel gear 41 and the first bevel gear 40 are meshed with each other, the rotation of the second bevel gear 41 can drive the first bevel gear 40 to rotate, thereby driving the disk 38 to rotate. Through the transmission assembly and the telescopic assembly, the second magnet 29 can be driven to move, so that the second magnet 29 can move toward the side closer to the first magnet 26, which can increase the resistance between the second magnet 29 and the first magnet 26, thereby further improving the stability of the bracket 24, and thus improving the stability of the camera on the bracket 24. That is, when the force generated by the vibration of the drone is greater, the resistance between the first magnet 26 and the second magnet 29 is greater, and the camera on the bracket 24 is more stable, allowing the camera to be used in a variety of environments.

[0061] like Figures 1-8 As shown, the magnetic poles of each first magnet 26 and each second magnet 29 at one end close to each other are the same. By utilizing the principle of repulsion between the same poles, a repulsive force can be generated between the first magnet 26 and the second magnet 29. The greater the distance between the first magnet 26 and the second magnet 29, the greater the repulsive force generated.

[0062] like Figures 1-8 As shown, the upper mounting plate 11 and the lower mounting plate 12 are both provided with a plurality of through grooves 48 and through holes 47. The provision of the through grooves 48 and through holes 47 can effectively reduce the contact area between the upper mounting plate 11 and the lower mounting plate 12 and the airflow, and reduce the vibration of the upper mounting plate 11 and the lower mounting plate 12 caused by the airflow, thereby further improving the stability of the camera on the drone.

[0063] The specific working process of the present invention is as follows:

[0064] When the vertical force generated during the vibration of the drone is transmitted to the upper mounting plate 11, the upper mounting plate 11 drives the upper fixing plate 13 and the lower mounting plate 12 to move downward. Under the action of the four connecting rods 21, the two sliders 17 can be driven to move away from each other on the guide rod 16. When the two sliders 17 move away from each other, the slider 17 squeezes the first spring 18 so that the first spring 18 is compressed. The rebound force of the compressed first spring 18 offsets the force, buffering the vertical force generated during the vibration of the drone and achieving a shock-absorbing effect. At the same time, the second spring 19 can block the rapid return of the slider 17, preventing the slider 17 from quickly returning to its original position, thereby preventing the bracket 24 and the camera on the bracket 24 from shaking, and effectively ensuring the stability of the camera.

[0065] When the drone vibrates and generates both lateral and vertical forces, the first shock-absorbing mechanism can effectively eliminate the vertical force. The four first magnets 26 and the four second magnets 29 form a resistance between the first magnets 26 and the second magnets 29. This resistance can offset the lateral force and reduce significant shaking of the camera.

[0066] When the force generated by the vibration of the drone is greater, that is, the distance that the rod 22 moves downward under the action of the force is greater, the rod 22 can drive the rack 43 to move downward through the connecting rod 45 and the vertical rod 44. Since the rack 43 and the gear 42 are meshed with each other, the rack 43 can drive the gear 42 to rotate when it moves, and the gear 42 drives the second bevel gear 41 coaxially connected thereto to rotate. Since the second bevel gear 41 and the first bevel gear 40 are meshed with each other, when the second bevel gear 41 rotates, it can drive the first bevel gear 40 to rotate, thereby driving the disc 38 to rotate. At this time, on the hinged rod 3 9, when the disc 38 rotates, it can drive the annular turntable 34 to rotate slightly, and when the annular turntable 34 rotates, it can drive the multiple arc grooves 35 to rotate, so that under the action of the insertion rod 33, the movable seat 32 can be driven to slide inside the slide groove 31, and the movable seat 32 can drive the second magnet 29 to move through the movable rod 30, so that the second magnet 29 can move toward the side close to the first magnet 26, reducing the distance between the second magnet 29 and the first magnet 26, increasing the repulsive force between the first magnet 26 and the second magnet 29, improving the stability of the bracket 24, and thereby improving the stability of the camera on the bracket 24.

[0067] The beneficial effects of the present invention are specifically embodied in that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shock absorbing device for a drone gimbal, comprising an upper mounting plate (11) and a lower mounting plate (12), wherein the lower mounting plate (12) is arranged at the bottom end of the upper mounting plate (11), and is characterized in that: Also included is a bracket (24), a first shock absorbing mechanism, and a second shock absorbing mechanism; The bracket (24) is mounted at the middle of the bottom end of the lower mounting plate (12), the first shock absorbing mechanism is mounted between the upper mounting plate (11) and the lower mounting plate (12), and the second shock absorbing mechanism is located between the first shock absorbing mechanism and the bracket (24); The first shock absorbing mechanism comprises four upper fixing plates (13), four lower fixing plates (14), four sliding assemblies, four buffer assemblies and four guide assemblies, wherein the four upper fixing plates (13) are equidistantly mounted on the bottom end of the upper mounting plate (11), each lower fixing plate (14) is located below an upper fixing plate (13), and each lower fixing plate (14) is fixed to the top end of the lower mounting plate (12), the four sliding assemblies are located between an upper fixing plate (13) and a lower fixing plate (14), each buffer assembly is located between a lower fixing plate (14) and a sliding assembly, and the four guide assemblies are equidistantly arranged between the upper mounting plate (11) and the lower mounting plate (12); The second shock absorbing mechanism includes a fixed block (25), a transmission assembly, a rotating assembly, a telescopic assembly, four first magnets (26) and four second magnets (29), wherein the fixed block (25) is fixedly mounted on the surface of the bracket (24), the four first magnets (26) are respectively fixed on the four side surfaces of the bracket (24), each second magnet (29) is located on a side of a first magnet (26) away from the bracket (24), the telescopic assembly is mounted between the four second magnets (29), the rotating assembly is located on one side of the telescopic assembly, and the transmission assembly is located between the rotating assembly and one of the guide assemblies; Each guide assembly includes an insertion rod (22) and a positioning cylinder (23), the positioning cylinder (23) is fixedly mounted on the lower mounting plate (12), the insertion rod (22) is slidably arranged inside the positioning cylinder (23), and the top end of the insertion rod (22) is fixedly connected to the upper mounting plate (11); The telescopic assembly includes an annular housing (28), a truncated table (27), an annular turntable (34), four moving rods (30), four slide grooves (31), four moving seats (32), four insertion rods (33) and four arc-shaped grooves (35). The annular housing (28) is sleeved on the outside of the fixed block (25), the truncated table (27) is fixed to the top of the annular housing (28), the annular turntable (34) is rotatably arranged on the top of the truncated table (27), and the four moving rods (30) are equidistantly slidably arranged on the annular housing (28). One end of each moving rod (30) is fixedly connected to a second magnet (29), and the other end of each moving rod (30) is fixedly connected to a moving seat (32). Four slide grooves (31) are equidistantly provided on the circular table (27), four arcuate grooves (35) are equidistantly provided on the annular turntable (34), each movable seat (32) is slidably provided in a slide groove (31), one end of each insertion rod (33) is fixed on a movable seat (32), and the other end of each insertion rod (33) passes through a slide groove (31) and is inserted into the interior of an arcuate groove (35); The rotating assembly includes a first mounting frame (36), a disk (38) and a hinged rod (39), wherein the first mounting frame (36) is fixed to one side of the circular table (27), the disk (38) is rotatably arranged on the first mounting frame (36), one end of the hinged rod (39) is hinged to the top surface of the disk (38), and the other end of the hinged rod (39) is hinged to the top surface of the annular turntable (34); The transmission assembly includes a vertical rod (44), a connecting rod (45), a rack (43), a gear (42), a second bevel gear (41), a first bevel gear (40) and a second mounting frame (37); The connecting rod (45) is fixedly mounted on the bottom end of one of the insertion rods (22), the vertical rod (44) is fixed on the bottom end of the connecting rod (45), the rack (43) is fixed on one side of the vertical rod (44), the second mounting frame (37) is fixedly mounted on the bottom end of the first mounting frame (36), the first bevel gear (40) is located at the bottom end of the first mounting frame (36) and is coaxially fixedly connected to the disc (38), the second bevel gear (41) is rotatably arranged on one side of the second mounting frame (37), the first bevel gear (40) and the second bevel gear (41) are meshed with each other, the gear (42) is fixed on one side of the second bevel gear (41) and is coaxially arranged with the second bevel gear (41), and the gear (42) and the rack (43) are meshed with each other.

2. The shock absorbing device for a UAV gimbal according to claim 1, characterized in that: Each sliding assembly includes a pressing block (20), two sliders (17), four side plates (15), four guide rods (16) and four connecting rods (21). The pressing block (20) is fixedly mounted on the bottom end of the upper fixed plate (13). Each two side plates (15) are fixed on one end of the lower fixed plate (14). Each two guide rods (16) are fixed between the two side plates (15). Each slider (17) is slidably arranged on the two guide rods (16) at the same end. Each two connecting rods (21) are respectively hinged to the two ends of a slider (17). The other end of each connecting rod (21) is hinged to the pressing block (20).

3. The shock absorbing device for a UAV gimbal according to claim 2, characterized in that: Each buffer assembly includes four first springs (18) and four second springs (19), each first spring (18) is sleeved on a guide rod (16), and each first spring (18) is located on a side of the two sliders (17) that are away from each other, and both ends of each first spring (18) are respectively connected to the slider (17) and the side plate (15); Each second spring (19) is sleeved on a guide rod (16), and each second spring (19) is located on a side where the two sliders (17) are close to each other, and both ends of each second spring (19) are respectively connected to the slider (17) and the side plate (15).

4. The shock absorbing device for a UAV gimbal according to claim 3, characterized in that: A plurality of connecting frames (46) are fixed to the bottom end of the annular casing (28), and the other end of each connecting frame (46) is connected to the fixing block (25).

5. The shock absorbing device for a UAV gimbal according to claim 4, characterized in that: The magnetic poles of each first magnet (26) and each second magnet (29) at the ends close to each other are the same.

6. The shock absorbing device for a UAV gimbal according to claim 5, characterized in that: A plurality of through slots (48) and through holes (47) are provided on both the upper mounting plate (11) and the lower mounting plate (12).

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