Airbag protection device for cradle head of unmanned aerial vehicle

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, particularly relates to an air bag protection device for an unmanned aerial vehicle holder, and aims to solve the problems that an air bag is inflated by using an air pump at present, the efficiency is too low, the air pump is controlled to work after a vibration sensor detects a vibration signal, and the air bag cannot be fully unfolded, so that a camera is insufficiently protected. According to the scheme, the unmanned aerial vehicle comprises an unmanned aerial vehicle body and further comprises a cradle head frame fixed to the lower side of the unmanned aerial vehicle body, and a camera used for photographing is arranged on the lower side of the cradle head frame; two side plates are fixed to the bottom end of the unmanned aerial vehicle body, and movable grooves are formed in the two side plates; and through the design of the elastic extrusion assembly and the positioning assembly, it is guaranteed that the protection air bag can be stably fixed in the side plate when not needed, normal flight of the unmanned aerial vehicle cannot be interfered, and the device is simple in structure and convenient to operate and has high practicability and reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an airbag protection device for a cloud platform of an unmanned aerial vehicle. Background Art

[0002] Unmanned aerial vehicle, abbreviated as "UAV" in English, is an unmanned aircraft controlled by radio remote control equipment and self-contained program control device, or operated completely or intermittently autonomously by an on-board computer. UAV gimbal refers to the support equipment used by UAVs to install and fix mission payloads such as cameras.

[0003] After searching, a Chinese patent with patent publication number CN208149639U discloses a drone gimbal protection device, including a connecting top shell, an airbag shell and an inflatable shell, a shock-absorbing spring is arranged on the top of the connecting top shell, the shock-absorbing spring is fixedly connected to the connecting top shell, a fixing bolt is arranged on the bottom of the connecting top shell, the fixing bolt is fixedly connected to the connecting top shell, a gimbal connecting seat is arranged at the bottom of the fixing bolt, the gimbal connecting seat is fixedly connected to the fixing bolt, and a gimbal frame is arranged at the bottom of the gimbal connecting seat; an air pump is arranged inside the inflatable shell, and an air outlet valve is arranged on the top of the air pump. In this patent, an air pump is used to inflate the airbag, and the efficiency is too slow. After the vibration sensor detects the vibration signal, the air pump is controlled to work, and the airbag cannot be fully deployed, which will result in insufficient protection for the camera.

[0004] In the prior art, when a drone is hit, it is impossible to protect the camera in the gimbal. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art that an airbag is inflated by an air pump, which is too slow, and the airbag cannot be fully deployed after the vibration sensor detects a vibration signal and then controls the air pump to work, resulting in insufficient protection for the camera. An airbag protection device for a drone gimbal is proposed to solve the problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An airbag protection device for a drone gimbal includes a drone body and:

[0008] A pan-tilt frame fixed to the lower side of the drone body, wherein a camera for taking photos is provided on the lower side of the pan-tilt frame;

[0009] Two protective airbags, two side panels are fixed at the bottom of the drone body, movable grooves are provided in the two side panels, accommodating boxes are slidably provided in the two movable grooves, the two protective airbags are respectively arranged in the two accommodating boxes for protecting the camera, the two protective airbags are both in a semi-inflated state, a group of elastic extrusion components are provided between the two accommodating boxes and the two side panels, and the two groups of elastic extrusion components are respectively used to drive the two protective airbags to fit the two ends of the camera;

[0010] Wherein, a set of positioning components is provided between the two side panels and the two accommodating boxes for fixing the protective airbag and the accommodating box in the side panels when protection is not required;

[0011] An inflatable component, wherein the bottom ends of the two side panels are fixed with a same bottom plate, and the inflatable component is arranged in the bottom plate for inflating the two protective airbags;

[0012] A vibration sensor is arranged on the lower side of the bottom plate and is used to detect vibration and start the inflation component and release the fixing of the positioning component to the accommodating box.

[0013] In one possible design, the inflation component includes an air bin opened in a bottom plate, a piston plate sliding in the air bin, two connecting rods fixed to the bottom end of the piston plate, two strong springs fixed to the bottom end of the piston plate, side ends of the two strong springs are fixed in the air bin, the two strong springs are respectively sleeved on the surfaces of the two connecting rods, the side ends of the two connecting rods are both movable downward to penetrate the bottom plate and are fixed with the same connecting plate, the vibration sensor is arranged in the connecting plate, a fixing block is fixed to the bottom end of the bottom plate, an electromagnet electrically connected to the vibration sensor is fixed in the fixing block, a magnetic suction piece magnetically connected to the electromagnet slides in the fixing block, a positioning plate for limiting the connecting plate is fixed to the side end of the magnetic suction piece, connecting hoses are fixed between the bottom plate and the two protective airbags, and the two connecting hoses are respectively used to connect the two protective airbags and the air bin.

[0014] In a possible design, each group of the positioning components includes two second grooves opened in the side panels, a slide plate slides in each of the two second grooves, positioning rods are fixed to the adjacent ends of the two slide plates, positioning grooves are opened at both ends of the accommodating box, the two positioning rods are respectively engaged with the two positioning grooves, movable rods are fixed to the distant ends of the two slide plates, the two movable rods move outward and penetrate the two ends of the side panels, positioning springs are fixed to the distant ends of the two slide plates, the side ends of the two positioning springs are respectively fixed in the two second grooves, and the two positioning springs are respectively sleeved on the surfaces of the two movable rods.

[0015] In a possible design, extrusion grooves are opened in the four movable rods, connecting frames are slidably provided at the side ends of the two side plates, the two connecting frames are fixed to the top ends of the connecting plates, two extrusion rods are fixed to the top ends of the two connecting frames, and the four connecting frames are respectively extruded and contacted with the inclined surfaces of the two extrusion grooves.

[0016] In a possible design, each group of the elastic extrusion components includes two first grooves opened in the side plate, and the two first grooves are fixed with fitting springs, and the two fitting springs are fixed to the side ends of the accommodating box.

[0017] In a possible design, a one-way valve is provided in each of the two connecting hoses.

[0018] In the present application, when the vibration sensor in the connecting plate detects vibration, the electromagnet is energized to start the electromagnet. The electromagnet attracts the magnetic attraction sheet, so that the positioning plate releases the limit on the connecting plate, and the elasticity of the strong spring instantly pushes the piston plate to reset. The piston plate squeezes the air in the air chamber into the two protective airbags through two connecting hoses, so that the two protective airbags quickly and fully expand and open to protect the camera. At the same time, the piston plate drives the connecting plate to move, and the connecting plate drives the extrusion rod to move upward through the connecting frame. The extrusion rod moves upward to squeeze the inclined surface of the extrusion groove, so that the movable rods on both sides move in directions away from each other, pulling the positioning rod out of the positioning groove, and the elasticity of the fitting spring pushes the accommodating box and the protective airbag to move in a direction close to the camera, so that the protective airbag can wrap the camera from both sides to effectively protect the camera.

[0019] Beneficial Effects

[0020] In the utility model, when the UAV encounters vibration, the inflation component can be quickly started to inflate the protective airbag, and the protective airbag can be fitted to the camera for protection by releasing the positioning component, thereby effectively preventing the camera from being damaged. At the same time, the design of the elastic extrusion component and the positioning component ensures that the protective airbag can be stably fixed in the side panel when not needed, and will not interfere with the normal flight of the UAV. The device has a simple structure, is easy to operate, and has high practicality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front perspective view of an airbag protection device for a drone gimbal proposed by the utility model;

[0022] Figure 2 This is a partial stereoscopic diagram of an airbag protection device for a drone gimbal proposed by the utility model;

[0023] Figure 3 This is a cross-sectional view of an airbag protection device for a drone gimbal proposed by the utility model;

[0024] Figure 4 This is a first partial cross-sectional view of an airbag protection device for a drone gimbal proposed by the utility model;

[0025] Figure 5 This is a second partial cross-sectional view of an airbag protection device for an unmanned aerial vehicle gimbal proposed by the utility model.

[0026] In the figure: 1. drone body; 2. gimbal; 3. camera; 4. side panel; 5. bottom panel; 6. storage box; 7. protective airbag; 8. movable groove; 9. piston plate; 10. air chamber; 11. connecting rod; 12. connecting plate; 13. strong spring; 14. positioning plate; 15. fixing block; 16. connecting hose; 17. first groove; 18. fitting spring; 19. positioning groove; 20. positioning rod; 21. slide plate; 22. second groove; 23. movable rod; 24. positioning spring; 25. extrusion groove; 26. extrusion rod; 27. connecting frame; 28. electromagnet; 29. ​​magnetic sheet. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Example 1

[0029] Reference Figure 1-Figure 5 A protective device includes an unmanned aerial vehicle body 1, a pan-tilt frame 2 and a camera 3. The pan-tilt frame 2 is fixed to the lower side of the unmanned aerial vehicle body 1, and the camera 3 is arranged on the lower side of the pan-tilt frame 2. Two side panels 4 are fixed to the bottom end of the unmanned aerial vehicle body 1. The side panels 4 are provided with movable grooves 8. A receiving box 6 is slidably arranged in the movable groove 8. A protective airbag 7 in a semi-inflated state is arranged in the receiving box 6, which is used to fit the two ends of the camera 3 for protection when needed;

[0030] An inflatable assembly is provided in the bottom plate 5, including an air chamber 10, a piston plate 9, a connecting rod 11, a strong spring 13 and a connecting plate 12. A vibration sensor is provided in the connecting plate 12. When vibration is detected, the inflatable assembly is activated and the fixing of the positioning assembly to the accommodating box 6 is released. Specifically, the vibration sensor controls the movement of the positioning plate 14 through the magnetic connection between the electromagnet 28 and the magnetic magnet sheet 29, thereby releasing the limit on the connecting plate 12; the elasticity of the strong spring 13 instantly pushes the piston plate 9 to reset, and the piston plate 9 squeezes the air in the air chamber 10 into the two protective airbags 7 through the two connecting hoses 16, so that the two protective airbags 7 are quickly and fully expanded to protect the camera 3;

[0031] Furthermore, one-way valves are provided in the two connecting hoses 16 to effectively prevent gas from returning.

[0032] It also includes an elastic extrusion component arranged between the side plate 4 and the accommodating box 6, specifically, two first grooves 17 are opened in the side plate 4, and a fitting spring 18 is fixed in the first groove 17, and the other end of the fitting spring 18 is fixed to the side end of the accommodating box 6, so that in the protective state, under the action of the elastic extrusion component, the protective airbag 7 can always maintain a fitting state with the camera 3;

[0033] A positioning assembly is also provided between the side plate 4 and the accommodating box 6. When protection is not required, the positioning assembly can fix the protective airbag 7 and the accommodating box 6 in the side plate 4. The positioning assembly includes two second grooves 22 opened in the side plate 4. A slide plate 21 slides in the second groove 22. A positioning rod 20 is fixed to the end of the slide plate 21. Positioning grooves 19 are provided at both ends of the accommodating box 6. The positioning rod 20 is engaged with the positioning groove 19 to achieve fixation. A movable rod 23 is fixed to the other end of the slide plate 21. The movable rod 23 moves outward and passes through both ends of the side plate 4. A positioning spring 24 is provided between the slide plate 21 and the movable rod 23. The positioning spring 24 is sleeved on the surface of the movable rod 23 and fixed in the second groove 22.

[0034] This application can be used for drone gimbals, and can also be used in other fields applicable to this application.

[0035] Example 2

[0036] refer to Figure 1-Figure 5 , based on the improvement of Example 1: an airbag protection device for a drone gimbal, which is used in the field of drone technology,

[0037] Extrusion grooves 25 are provided in the four movable rods 23, and a connecting frame 27 is slidably provided on the side end of the side plate 4. The connecting frame 27 is fixed to the top end of the connecting plate 12, and two extrusion rods 26 are fixed to the top end of the connecting frame 27. When the connecting plate 12 moves downward, the extrusion rods 26 are squeezed and contacted with the inclined surfaces of the extrusion grooves 25, pushing the movable rods 23 to move outward, thereby driving the slide plate 21 to move, so that the positioning rod 20 is disengaged from the positioning groove 19, thereby releasing the positioning assembly.

[0038] However, as is well known to those skilled in the art, the working principle and wiring method of the electromagnet 28 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selection according to their needs or convenience.

[0039] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. An airbag protection device for a drone gimbal, comprising a drone body (1), characterized in that: Also includes: A pan / tilt frame (2) fixed to the lower side of the drone body (1), wherein a camera (3) for photographing is provided on the lower side of the pan / tilt frame (2); Two protective airbags (7), two side panels (4) are fixed at the bottom end of the unmanned aerial vehicle body (1), movable grooves (8) are provided in the two side panels (4), and accommodating boxes (6) are slidably provided in the two movable grooves (8), the two protective airbags (7) are respectively arranged in the two accommodating boxes (6) for protecting the camera (3), the two protective airbags (7) are both in a semi-inflated state, and a group of elastic extrusion components are respectively arranged between the two accommodating boxes (6) and the two side panels (4), and the two groups of elastic extrusion components are respectively used to drive the two protective airbags (7) to fit the two ends of the camera (3); Wherein, a set of positioning components is provided between the two side panels (4) and the two accommodating boxes (6) for fixing the protective airbag (7) and the accommodating box (6) in the side panels (4) when protection is not required; An inflatable component, wherein the bottom ends of the two side panels (4) are fixed with a common bottom panel (5), and the inflatable component is arranged inside the bottom panel (5) and is used to inflate the two protective airbags (7); A vibration sensor is arranged on the lower side of the bottom plate (5) and is used to detect vibration and activate the inflation component and release the fixation of the positioning component to the accommodating box (6).

2. The airbag protection device for a drone gimbal according to claim 1, characterized in that: The inflatable component comprises an air chamber (10) opened in the bottom plate (5), a piston plate (9) sliding in the air chamber (10), two connecting rods (11) fixed to the bottom end of the piston plate (9), two strong springs (13) fixed to the bottom end of the piston plate (9), the side ends of the two strong springs (13) are fixed in the air chamber (10), the two strong springs (13) are respectively sleeved on the surfaces of the two connecting rods (11), the side ends of the two connecting rods (11) are movable downward to penetrate the bottom plate (5) and are fixed with the same connecting plate (12), the vibration sensor is arranged on the connecting rod (11), and the connecting rod (11) is provided with a plurality of connecting rods (11) and a plurality of connecting rods (11) connected to the bottom plate (5). A fixing block (15) is fixed at the bottom end of the base plate (5) in the connecting plate (12), an electromagnet (28) electrically connected to the vibration sensor is fixed in the fixing block (15), a magnetic magnet sheet (29) magnetically connected to the electromagnet (28) is slidably disposed in the fixing block (15), a positioning plate (14) for limiting the connecting plate (12) is fixed at the side end of the magnetic magnet sheet (29), and a connecting hose (16) is fixed between the base plate (5) and the two protective airbags (7), and the two connecting hoses (16) are respectively used to connect the two protective airbags (7) and the air chamber (10).

3. The airbag protection device for a drone gimbal according to claim 2, characterized in that: Each group of the positioning components comprises two second grooves (22) provided in the side plate (4), a slide plate (21) sliding in each of the two second grooves (22), a positioning rod (20) fixed to the adjacent ends of the two slide plates (21), a positioning groove (19) provided at both ends of the accommodating box (6), the two positioning rods (20) respectively snapping into the two positioning grooves (19), a movable rod (23) fixed to the distant ends of the two slide plates (21), the two movable rods (23) respectively moving outwardly and penetrating the two ends of the side plate (4), a positioning spring (24) fixed to the distant ends of the two slide plates (21), the side ends of the two positioning springs (24) respectively fixed in the two second grooves (22), and the two positioning springs (24) respectively sleeved on the surfaces of the two movable rods (23).

4. The airbag protection device for a drone gimbal according to claim 3, characterized in that: An extrusion groove (25) is provided in each of the four movable rods (23); a connecting frame (27) is slidably provided at the side ends of the two side plates (4); the two connecting frames (27) are fixed to the top of the connecting plate (12); two extrusion rods (26) are fixed to the top of the two connecting frames (27); and the four connecting frames (27) are respectively in extrusion contact with the inclined surfaces of the two extrusion grooves (25).

5. An airbag protection device for a drone gimbal according to any one of claims 1 to 4, characterized in that: Each group of the elastic extrusion components comprises two first grooves (17) opened in the side plate (4), and a fitting spring (18) is fixed in each of the two first grooves (17). The two fitting springs (18) are fixed to the side ends of the accommodating box (6).

6. The airbag protection device for a drone gimbal according to claim 2, characterized in that: One-way valves are arranged in the two connecting hoses (16).

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