Unmanned aerial vehicle with folding takeoff and landing damping device
The supporting shaft, torsion spring and positioning pin are combined to achieve rapid folding and unfolding of the legs. Combined with the elastic support of the foot and the spring, the problems of inconvenient operation and unstable landing are solved, and the drone is realized Fast fold and smooth landing.
Patent Information
- Application Number
- CN202420194800.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-01-26
AI Technical Summary
The existing drone folding landing and shock absorbing devices are cumbersome when they are folded and retracted, and are inconvenient to use, making it difficult to fold and unfold quickly.
The support shaft, torsion spring and positioning pin are used to cooperate, and the support shaft supports the legs swing, and the torsion spring supports the legs stability. Through the inclination angle and sliding of the positioning pin and the positioning groove, the legs can be easily and quickly folded and unfolded; The cooperation between the foot and the spring adjusts the contact angle through elastic support to keep the drone landing stable.
The outriggers are quickly folded and unfolded, which solves the problem of cumbersome operation, and adjusts the foot contact angle through elastic support to ensure the stability of the drone when landing on uneven ground.
Smart Images
Figure CN222247761U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a unmanned aerial vehicle with a foldable landing and shock absorbing device. Background Art
[0002] Unmanned aerial vehicle, abbreviated as "UAV", is an unmanned aerial vehicle controlled by radio remote control equipment and self-contained program control device. UAV is actually a general term for unmanned aerial vehicles. From a technical point of view, it can be divided into: unmanned fixed-wing aircraft, unmanned vertical take-off and landing aircraft, unmanned airships, unmanned helicopters, unmanned multi-rotor aircraft, unmanned paragliders, etc. Compared with manned aircraft, it has the advantages of small size, low cost and easy use. It can be divided into military and civilian use. In the military aspect, UAVs are divided into reconnaissance aircraft and target aircraft. In the civilian aspect, UAV industry application is the real rigid demand for UAVs; currently it is used in aerial photography, agriculture, plant protection, selfie, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting and other fields.
[0003] After searching, the Chinese patent with publication number CN217049028U discloses a foldable landing shock absorbing device for unmanned aerial vehicles, and its technical key points are: comprising an unmanned aerial vehicle, a fixing plate is threadedly connected to the bottom of the unmanned aerial vehicle, a hook is fixedly installed on one side surface of the fixing plate, connecting plates are welded on both sides of the fixing plate, a collar is arranged at one end of the connecting plate, and a folding mechanism is arranged on one side of the collar. The foldable landing shock absorbing device for unmanned aerial vehicles is provided with an outer sleeve, a second limiting groove, a second spring, a second limiting block, a movable rod and a fixed foot. When the unmanned aerial vehicle is in use, when the unmanned aerial vehicle is landing, the fixed foot will squeeze the second spring through the second limiting block at one end of the movable rod while contacting the ground, and the second spring will absorb most of the impact force during the contraction process, thereby reducing the vibration of the unmanned aerial vehicle itself, and at the same time, the cooperation of the second limiting block and the outer sleeve can prevent the second spring from shaking left and right, and can increase the stability of the unmanned aerial vehicle when landing.
[0004] Although the above scheme can reduce the vibration of the drone itself and effectively increase the stability of the drone during landing, the second spring will be squeezed by the second limit block at one end of the movable rod, and the second spring will absorb most of the impact force during the contraction process, thereby reducing the vibration of the drone itself. At the same time, the cooperation of the second limit block and the outer sleeve can prevent the second spring from shaking left and right, which can increase the stability of the drone during landing. However, when retracting the telescopic sleeve, it is necessary to loosen the fixing rod and the nut and loosen the connecting plate first to loosen the ring, release the fixing restriction on the telescopic sleeve, and fold the telescopic sleeve together. Although this method can fold the telescopic sleeve, it is cumbersome in actual operation and very inconvenient to use. For this reason, we provide a drone with a foldable landing shock absorption device to solve the above problems. Utility Model Content
[0005] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a drone with a foldable landing and shock absorbing device.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a drone with a foldable landing shock absorption device, comprising a drone body and a support arm, wherein a mounting plate is fixedly installed below the drone body, the lower surface of the mounting plate is fixedly connected to the upper surface of the support arm, the upper surface of the support arm is fixedly connected to a force frame, the inner side of the support arm is fixedly connected to a support shaft, the outer surface of the support shaft is movably connected to a support leg at a fixed point, the outer side of the support shaft is sleeved with a torsion spring, a shock absorption mechanism is arranged inside the support arm, the inner side wall of the support arm is slidably connected to a positioning pin, the side of the positioning pin located outside the support arm is fixedly connected to a guide rod, the outer surface of the support arm is fixedly connected to a loading box, the outer surface of the guide rod is slidably connected to the inner side wall of the loading box, the outer side of the guide rod is sleeved with a spring, and the inner side of the support leg is provided with a positioning groove.
[0007] Furthermore, one end of the torsion spring is fixedly connected to the inner wall of the support arm, and the other end of the torsion spring is fixedly connected to the inner wall of the support leg.
[0008] Furthermore, one end of the torsion spring is fixedly connected to the inner wall of the support arm, and the other end of the torsion spring is fixedly connected to the inner wall of the support leg.
[0009] Furthermore, one end of the guide rod located outside the loading box is fixedly connected to a limiting block, and an outer surface of the limiting block contacts an outer surface of the loading box.
[0010] Furthermore, the shock absorbing mechanism includes a shock absorber, the fixed end of the shock absorber is fixedly connected to a base one, the outer surface of the base one is fixedly connected to the inner wall of the support arm, the output end of the shock absorber is fixedly connected to a base two, the outer surface of the base two is fixedly connected to a slider, the outer surface of the slider is slidably connected to the inner wall of the support arm, and one side of the slider is fixedly connected to a base three.
[0011] Furthermore, a support rod is movably connected to the inner fixed point of the base, and the other end of the support rod is movably connected to the inner fixed point of the support leg.
[0012] Furthermore, the bottom end of the leg is movably connected to a foot at a fixed point, the upper surface of the foot is fixedly connected to two bases four, the inner sides of the two bases four are penetrated by tension springs that are movably connected, the other ends of the two tension springs are penetrated by bases five that are movably connected, and the outer surfaces of the two bases five are fixedly connected to the outer surfaces of the legs.
[0013] Compared with the prior art, the drone with a foldable landing shock-absorbing device has the following beneficial effects:
[0014] 1. The utility model cooperates between the support shaft, the torsion spring and the locating pin. The support shaft can support the swing of the outrigger, the torsion spring can support the stability of the outrigger after being unfolded, and the locating pin and the locating groove can limit the stability of the outrigger after being folded. When in use, it is only necessary to pull the outrigger outward, and the locating groove pushes the locating pin to slide inside the loading box through the inclination angle and the inclination angle of the locating pin, thereby releasing the restriction of the locating pin on the positioning of the arm, so that the outrigger can be easily and quickly folded and unfolded, solving the problem of inconvenient folding of the outrigger.
[0015] 2. The utility model uses the cooperation between the ground feet and the tension spring. When the UAV body lands, the ground feet first contact the ground. When encountering uneven ground, the ground feet can adjust the contact angle with the ground through the elastic support of the tension spring, so as to maintain the stability of the UAV body when landing, thus solving the problem that the UAV body is difficult to land when encountering uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the internal structure of the support arm of the utility model;
[0019] Figure 4 It is a schematic diagram of the internal structure of the loading box of the utility model.
[0020] In the figure: 1. UAV body; 2. Support arm; 3. Mounting plate; 4. Force frame; 5. Support shaft; 6. Support leg; 7. Positioning slot; 8. Torsion spring; 9. Shock absorption mechanism; 901. Shock absorber; 902. Base one; 903. Base two; 904. Slider; 905. Base three; 906. Support rod; 10. Positioning pin; 11. Guide rod; 12. Loading box; 13. Spring; 14. Limit block; 15. Anchor; 16. Base four; 17. Tension spring; 18. Base five. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1-Figure 4As shown, the utility model provides a technical solution: a drone with a foldable landing shock absorbing device, including a drone body 1 and a support arm 2, a mounting plate 3 is fixedly installed below the drone body 1, the lower surface of the mounting plate 3 is fixedly connected to the upper surface of the support arm 2, a force frame 4 is fixedly connected to the upper surface of the support arm 2, a placement groove is opened on the inner side of the support arm 2, and the support leg 6 can be placed inside the placement groove after being recovered, which can save the placement space, and the force frame 4 can increase the impact resistance of the support arm 2, a support shaft 5 is fixedly connected to the inner side of the support arm 2, and the outer surface of the support shaft 5 is movably connected to the support leg 6 at a fixed point, and the outer surface of the support leg 6 The bottom of the support leg 6 has an inclination angle, which is convenient for pushing the positioning pin 10 when folding the support leg 6. The outer sleeve of the support shaft 5 is connected with a torsion spring 8, one end of the torsion spring 8 is fixedly connected to the inner wall of the support arm 2, and the other end of the torsion spring 8 is fixedly connected to the inner wall of the support leg 6. After the support leg 6 is unfolded outward, in order to prevent the support leg 6 from shrinking inward and failing to support the drone body 1 when landing, the torsion spring 8 is used to elastically support the support leg 6, so that the support leg 6 can always remain unfolded outward when there is no external force, so as to avoid the drone body 1 from losing support when landing. The support shaft 5 can make the support leg 6 mobile and maintain the stability of the support leg 6 when it is active. The inner wall is slidably connected with a positioning pin 10, and the positioning pin 10 is fixedly connected with a guide rod 11 on one side outside the support arm 2. The outer surface of the support arm 2 is fixedly connected with a loading box 12, and the outer surface of the guide rod 11 is slidably connected with the inner wall of the loading box 12. One end of the guide rod 11 located outside the loading box 12 is fixedly connected with a limiting block 14, and the outer surface of the limiting block 14 contacts the outer surface of the loading box 12. The limiting block 14 can maintain the stability of the guide rod 11 and prevent the guide rod 11 from detaching from the loading box 12, causing the positioning pin 10 to lose its supporting force. A spring 13 is sleeved on the outside of the guide rod 11, and one end of the spring 13 is connected to the positioning pin 1 0 is fixedly connected, and the other end of the spring 13 is fixedly connected to the inner wall of the loading box 12. When the locating pin 10 slides into the loading box 12, the spring 13 is compressed and contracted at the same time. After the locating pin 10 loses the external thrust, the spring 13 can push the locating pin 10 to return to its original position. A locating groove 7 is provided on the inner side of the leg 6. After the leg 6 is folded inwardly, the leg 6 contacts the locating pin 10, pushing the locating pin 10 to slide into the loading box 12. After the locating pin 10 contacts the locating groove 7, the movement of the leg 6 is restricted. When in use, the leg 6 is pulled outward, and the locating groove 7 can push the locating pin 10 to slide into the loading box 12.
[0023] A shock absorbing mechanism 9 is arranged inside the support arm 2, and the shock absorbing mechanism 9 can reduce the impact caused by the contact between the drone body 1 and the ground to prevent the drone body 1 from being damaged. The shock absorbing mechanism 9 includes a shock absorber 901, and the fixed end of the shock absorber 901 is movably connected to the base one 902 at a fixed point, and the outer surface of the base one 902 is fixedly connected to the inner wall of the support arm 2. The output end of the shock absorber 901 is fixedly connected to the movable base two 903, and the outer surface of the base two 903 is fixedly connected to a slider 904, and the outer surface of the slider 904 is slidably connected to the inner wall of the support arm 2, and one side of the slider 904 is fixedly connected to the base three 905, and the shock absorber 90 1 can absorb the vibration caused by the outrigger 6, so that the drone body 1 can land smoothly. The base 1 902 and the base 2 903 can maintain the stability of the shock absorber 901. The inner side of the base 3 905 is movably connected with a support rod 906. The other end of the support rod 906 is movably connected with the inner side of the outrigger 6. The outrigger 6 transmits the vibration to the slider 904 through the support rod 906. The slider 904 transmits the vibration to the shock absorber 901 through sliding to absorb and filter it out, thereby protecting the drone body 1 from damage. A placement slot is provided inside the outrigger 6, and the support rod 906 can be placed inside after the outrigger 6 is folded.
[0024] The bottom end of the leg 6 is movably connected with a foot 15, and the upper surface of the foot 15 is fixedly connected with two bases four 16. The inner sides of the two bases four 16 are penetrated by a tension spring 17 for movability connection, and the other ends of the two tension springs 17 are penetrated by a base five 18 for movability connection. The outer surfaces of the two bases five 18 are fixedly connected to the outer surface of the leg 6. The foot 15 has an up and down swinging function. The balance of the foot 15 can be maintained by the two tension springs 17. When the foot 15 contacts the uneven ground, the angle is adjusted by swinging to maintain the balance of the drone body 1.
[0025] Working principle: first, push the leg 6 to swing toward the inside of the arm 2, and the leg 6 contacts the positioning pin 10, pushing the positioning pin 10 to slide toward the inside 12 of the loading box, and compressing the spring 13 to shrink, then the leg 6 is folded into place, and at the same time the spring 13 pushes the positioning pin 10 to contact the positioning slot 7 to limit the movement of the leg 6. When in use, pull the leg 6 outward, and the positioning slot 7 can push the positioning pin 10 to slide toward the inside of the loading box 12, releasing the restriction on the fixation of the leg 6, and then the torsion spring 8 elastically supports the leg 6, so that the leg 6 remains extended outward when there is no external force. When the drone body 1 lands, the foot 15 adjusts the angle by swinging when in contact with the ground to maintain the balance of the drone body 1 when landing.
Claims
1. A drone with a foldable landing shock absorbing device, comprising a drone body (1) and a support arm (2), characterized in that: A mounting plate (3) is fixedly mounted below the drone body (1); the lower surface of the mounting plate (3) is fixedly connected to the upper surface of the support arm (2); the upper surface of the support arm (2) is fixedly connected to a force frame (4); the inner side of the support arm (2) is fixedly connected to a support shaft (5); the outer surface of the support shaft (5) is movably connected to a support leg (6); the outer surface of the support shaft (5) is sleeved with a torsion spring (8); a shock absorbing mechanism (9) is arranged inside the support arm (2); the inner side wall of the support arm (2) is slidably connected to a positioning pin (10); a side of the positioning pin (10) located outside the support arm (2) is fixedly connected to a guide rod (11); the outer surface of the support arm (2) is fixedly connected to a loading box (12); the outer surface of the guide rod (11) is slidably connected to the inner side wall of the loading box (12); a spring (13) is sleeved on the outer side of the guide rod (11); and a positioning groove (7) is provided on the inner side of the support leg (6).
2. The UAV with a foldable landing shock absorbing device according to claim 1, characterized in that: One end of the spring (13) is fixedly connected to the outer surface of the positioning pin (10), and the other end of the spring (13) is fixedly connected to the inner wall of the loading box (12).
3. The UAV with a foldable landing shock absorbing device according to claim 1, characterized in that: One end of the torsion spring (8) is fixedly connected to the inner wall of the support arm (2), and the other end of the torsion spring (8) is fixedly connected to the inner wall of the support leg (6).
4. The UAV with a foldable landing shock absorbing device according to claim 1, characterized in that: One end of the guide rod (11) located outside the loading box (12) is fixedly connected to a limit block (14), and an outer surface of the limit block (14) is in contact with an outer surface of the loading box (12).
5. The UAV with a foldable landing shock absorbing device according to claim 1, characterized in that: The shock absorbing mechanism (9) comprises a shock absorber (901), the fixed end of the shock absorber (901) is movably connected to a base one (902), the outer surface of the base one (902) is fixedly connected to the inner wall of the support arm (2), the output end of the shock absorber (901) is movably connected to a base two (903), the outer surface of the base two (903) is fixedly connected to a slider (904), the outer surface of the slider (904) is slidably connected to the inner wall of the support arm (2), and one side of the slider (904) is fixedly connected to a base three (905).
6. The UAV with a foldable landing shock absorbing device according to claim 5, characterized in that: The inner side of the base three (905) is movably connected to a support rod (906) at a fixed point, and the other end of the support rod (906) is movably connected to the inner side of the support leg (6) at a fixed point.
7. The UAV with a foldable landing shock absorbing device according to claim 1, characterized in that: The bottom end of the support leg (6) is movably connected to a foot (15) at a fixed point, and the upper surface of the foot (15) is fixedly connected to two bases four (16), and the inner sides of the two bases four (16) are penetrated by tension springs (17) for movability connection, and the other ends of the two tension springs (17) are penetrated by bases five (18) for movability connection, and the outer surfaces of the two bases five (18) are fixedly connected to the outer surface of the support leg (6).