Lifting platform for unmanned aerial vehicle

Abstract

The invention relates to the technical field of auxiliary lifting, and discloses a lifting platform for an unmanned aerial vehicle, the lifting platform comprises a protective shell, universal wheels are fixedly connected to the bottom of the protective shell, a handrail is fixedly connected to the side wall of the protective shell, an L-shaped connecting plate is fixedly connected to the side wall of the protective shell, and a driving assembly is arranged on the side wall of the L-shaped connecting plate; and the driving assembly comprises a motor, the outer wall of the motor is fixedly connected to the side wall of the L-shaped connecting plate, the output end of the motor is fixedly connected with a linkage shaft, and the outer wall of the linkage shaft is fixedly connected with a first rotating rod. A motor drives a linkage shaft to rotate, the linkage shaft rotates a first rotating rod, the first rotating rod rotates a second rotating rod, the second rotating rod rotates a rotating block, and a movable plate drives a protective shell to slide, so that the effect of adjusting the height is achieved, and the problems that the take-off height cannot be adjusted, and the take-off efficiency is high are solved. And therefore, the safety of the lifting platform for the unmanned aerial vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the field of auxiliary lifting technology, and in particular to a lifting platform for an unmanned aerial vehicle. Background Art

[0002] In today's drone application field, drones are widely used in many industries such as film and television shooting, agricultural plant protection, logistics distribution, geographic surveying and mapping. However, in actual operations, drone takeoff and landing face many challenges. Especially in some complex environmental scenarios, such as urban areas with tall buildings, mountainous areas with large terrain undulations, densely vegetated forests, and offshore operating platforms, higher requirements are placed on the takeoff and landing conditions of drones.

[0003] At present, most traditional drone take-off and landing methods rely on relatively flat and open ground, and use their own power devices to take off and land horizontally. The technical principle is mainly to use the lift generated by the drone's own propellers to overcome gravity to achieve vertical lift-off, and then gradually reach a horizontal flight state by adjusting the flight attitude. When landing, the operation is reversed, gradually lowering the altitude in a horizontal flight state, and finally landing smoothly on the ground. This method can work well in conventional open spaces.

[0004] However, this traditional take-off and landing method has obvious limitations. When facing complex environments, such as narrow streets or between buildings, the drone cannot obtain enough horizontal take-off space due to the presence of a large number of obstacles around it, and the conventional horizontal take-off method is easily restricted. Once improperly operated, it is very easy for the drone to collide with surrounding obstacles, causing damage to the drone, and even causing safety accidents, seriously affecting the normal operation of the drone and the safety of the surrounding environment. Therefore, a lifting platform for drones is proposed to solve the above problems. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a lifting platform for drones, aiming to improve the problem in the prior art that the conventional horizontal take-off method will be limited or even cause collision accidents when taking off in narrow streets, dense woods or roofs with obstacles.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A lifting platform for a drone, comprising a protective shell, a universal wheel fixedly connected to the bottom of the protective shell, a handrail fixedly connected to the side wall of the protective shell, an L-shaped connecting plate fixedly connected to the side wall of the protective shell, and a driving assembly arranged on the side wall of the L-shaped connecting plate;

[0008] The driving assembly includes a motor, an outer wall of the motor is fixedly connected to the side wall of the L-shaped connecting plate, a linkage shaft is fixedly connected to the output end of the motor, a first rotating rod is fixedly connected to the outer wall of the linkage shaft, a bottom support plate is provided on the side wall of the first rotating rod, the bottom of the bottom support plate is fixedly connected to the inner wall of the protective shell, the side wall of the first rotating rod is rotatably connected to the second rotating rod, the side wall of the second rotating rod is rotatably connected to the rotating block, the top of the rotating block is fixedly connected to a moving plate, the outer wall of the moving plate is slidably connected to the inside of the protective shell, and a support assembly is provided at the bottom of the moving plate;

[0009] As a further description of the above technical solution:

[0010] The support assembly comprises a bottom plate, the bottom of the bottom plate is fixedly connected to the top of the moving plate, and the top of the bottom plate is fixedly connected to a second fixed plate;

[0011] As a further description of the above technical solution:

[0012] The bottom of the movable plate is fixedly connected to an electric push rod, and the output end of the electric push rod is fixedly connected to a first rotating plate;

[0013] As a further description of the above technical solution:

[0014] The top of the first rotating plate is rotatably connected to an L-shaped supporting plate, the side wall of the L-shaped supporting plate is fixedly connected to a first connecting plate, and the side wall of the first connecting plate is rotatably connected to a third rotating plate;

[0015] As a further description of the above technical solution:

[0016] The bottom of the third rotating plate is rotatably connected to the second rotating plate, the bottom of the second rotating plate is rotatably connected to the first fixed plate, and the side wall of the first fixed plate is fixedly connected to the side wall of the second fixed plate;

[0017] As a further description of the above technical solution:

[0018] A collar is fixedly connected to the top of the first fixed plate, and a movable column is slidably connected to the inner wall of the collar;

[0019] As a further description of the above technical solution:

[0020] One end of the moving column is fixedly connected to a clamping plate, the bottom of the third rotating plate is rotatably connected to a fourth rotating plate, and one end of the fourth rotating plate is rotatably connected to the inner wall of the clamping plate.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, the linkage shaft is driven to rotate by a motor, the linkage shaft rotates the first rotating rod of the outer wall, the first rotating rod rotates the second rotating rod of the side wall, and then the second rotating rod rotates to drive the rotating block of the side wall to rotate, and at the same time drives the movable plate to slide on the inner wall of the protective shell, so as to achieve the effect of adjusting the height, solve the problem that the take-off height cannot be adjusted, resulting in the conventional horizontal take-off method being restricted or even causing a collision, and improves the safety of the lifting platform for drones.

[0023] 2. In the present invention, the first rotating plate is driven to rotate by an electric push rod, the first rotating plate drives the L-shaped supporting plate to move, the L-shaped supporting plate drives the first connecting plate, the first connecting plate moves to drive the third rotating plate to rotate, and then the third rotating plate rotates to drive the second rotating plate and the fourth rotating plate to rotate, and then the clamping plate is driven to rotate, and then the moving column is driven to slide inside the ring, so as to achieve the effect of fixing the UAV, which solves the problem of the prior art that the UAV is usually placed directly on the ground and then takes off again, resulting in the explosion of the UAV and damage to the UAV, and improves the stability of the lifting platform for the UAV. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a lifting platform for a drone proposed by the present invention;

[0025] Figure 2 This is a schematic diagram of the cross-sectional structure of a movable plate of a lifting platform for a drone proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of a protective shell of a lifting platform for a drone proposed by the present invention;

[0027] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0028] Legend:

[0029] 1. Protective shell; 2. Universal wheel; 3. L-shaped connecting plate; 4. Motor; 5. Armrest; 6. Moving plate; 7. Electric push rod; 8. First rotating plate; 9. L-shaped supporting plate; 10. Bottom plate; 11. First connecting plate; 12. Linkage shaft; 13. Bottom supporting plate; 14. First rotating rod; 15. Second rotating rod; 16. Rotating block; 17. First fixed plate; 18. Ring; 19. Moving column; 20. Second rotating plate; 21. Third rotating plate; 22. Fourth rotating plate; 23. Clamping plate; 24. Second fixed plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1 and Figure 3 , an embodiment provided by the present invention: a lifting platform for an unmanned aerial vehicle, including a protective shell 1, the protective shell 1 is usually made of high-strength engineering plastic material, has good impact resistance, can effectively resist damage to internal components caused by external collisions, and also has certain waterproof and dustproof capabilities. A universal wheel 2 is fixedly connected to the bottom of the protective shell 1, and the universal wheel 2 is generally made of polyurethane rubber material, which has high wear resistance and flexibility. The wear resistance ensures that the universal wheel 2 is not easily damaged after long-term use under different ground conditions. The side wall of the protective shell 1 is fixedly connected to an armrest 5, and the armrest 5 is mostly made of anti-slip rubber material. This material can increase the friction between the hand and the armrest 5, so that the person can hold it more firmly and not slip when pushing the lifting platform. The side wall of the protective shell 1 is fixedly connected to an L-shaped connecting plate 3, and the side wall of the L-shaped connecting plate 3 is provided with a driving component;

[0032] The driving assembly includes a motor 4, the outer wall of the motor 4 is fixedly connected to the side wall of the L-shaped connecting plate 3, and the output end of the motor 4 is fixedly connected to a linkage shaft 12, which is generally made of high-quality alloy steel. Alloy steel has the characteristics of high strength and high toughness, can withstand the large torque output by the motor 4, is not easily deformed or broken during high-speed rotation, and ensures stable transmission of power. The outer wall of the linkage shaft 12 is fixedly connected to a first rotating rod 14, and the side wall of the first rotating rod 14 is provided with a bottom support plate 13, which can be made of stainless steel, has strong corrosion resistance and high strength, can support the first rotating rod 14 inside the protective shell 1, ensure its stable operation, and is not easy to rust and damage the bottom of the bottom support plate 13 in a humid or corrosive environment. The bottom of the bottom support plate 13 is fixedly connected to the inner wall of the protective shell 1, the side wall of the first rotating rod 14 is rotatably connected to the second rotating rod 15, and the side wall of the second rotating rod 15 is rotatably connected to a rotating block 16, which is generally made of copper alloy. Copper alloy has good anti-friction and wear resistance, can reduce the friction resistance during the rotation process, make the rotation smoother, and prolong the service life of the rotating parts. The top of the rotating block 16 is fixedly connected to the moving plate 6, the outer wall of the moving plate 6 is slidably connected to the inside of the protective shell 1, and a supporting component is arranged at the bottom of the moving plate 6;

[0033] Specifically, the linkage shaft 12 is then driven to rotate through the output end of the motor 4. During the rotation, the linkage shaft 12 will drive the first rotating rod 14 on its outer wall to rotate. The rotation of the first rotating rod 14 will further drive the second rotating rod 15 on the side wall to rotate. Next, the rotation of the second rotating rod 15 will drive the rotating block 16 on its side wall to move together. As the rotating block 16 moves, it will drive the top movable plate 6 to slide inside the protective shell 1. Through this mechanical linkage mechanism, the height of the movable plate 6 can be adjusted, thereby achieving the effect of adjusting the height of the drone lifting platform. This design not only improves the flexibility and adaptability of the platform, but also ensures the stability and safety of the drone under different height requirements.

[0034] Reference Figure 1 , Figure 2 and Figure 4 The support assembly includes a base plate 10, which is usually made of high-strength aluminum alloy. It not only has sufficient strength to bear the weight of the upper components, but also has a light weight, which helps to reduce the weight of the entire support assembly. The bottom of the base plate 10 is fixedly connected to the top of the movable plate 6. The top of the base plate 10 is fixedly connected to a second fixed plate 24. The second fixed plate 24 can be made of stainless steel. The high strength and corrosion resistance of stainless steel enable it to be stably fixed on the base plate 10. The bottom of the movable plate 6 is fixedly connected to an electric push rod 7. The output end of the electric push rod 7 is fixedly connected to a first rotating plate 8. The first rotating plate 8 is usually made of alloy steel to withstand the force output by the electric push rod 7 and ensure strength and stability during the rotation process. The top of the first rotating plate 8 is rotatably connected to an L-shaped support plate 9. The L-shaped support plate 9 is also made of alloy steel to meet its structure under complex force conditions. Strength requirements: the side wall of the L-shaped support plate 9 is fixedly connected to the first connecting plate 11, the side wall of the first connecting plate 11 is rotatably connected to the third rotating plate 21, the bottom of the third rotating plate 21 is rotatably connected to the second rotating plate 20, the bottom of the second rotating plate 20 is rotatably connected to the first fixed plate 17, the first fixed plate 17 can be made of stainless steel to ensure its stability and connection strength in a humid or corrosive environment, the side wall of the first fixed plate 17 is fixedly connected to the side wall of the second fixed plate 24, the top of the first fixed plate 17 is fixedly connected to the ring 18, the inner wall of the ring 18 is slidably connected to the moving column 19, the moving column 19 is generally made of alloy steel to ensure its strength and rigidity when subjected to external force, one end of the moving column 19 is fixedly connected to the clamping plate 23, the bottom of the third rotating plate 21 is rotatably connected to the fourth rotating plate 22, and one end of the fourth rotating plate 22 is rotatably connected to the inner wall of the clamping plate 23;

[0035] Specifically, when using the lifting platform for drones, first place the drone on the top of the moving plate 6 to ensure that its position is accurate. Then, the output end of the electric push rod 7 drives the first rotating plate 8 to rotate. The rotation of the first rotating plate 8 will affect the L-shaped support plate 9 on its top, causing it to rotate accordingly. The rotation of the L-shaped support plate 9 will further drive the first connecting plate 11 of its side wall to move. The movement of the first connecting plate 11 will drive the third rotating plate 21 to rotate. The rotation of the third rotating plate 21 will not only drive the second rotating plate 20 at the bottom to rotate, but also drive the fourth rotating plate 22 at the bottom to rotate. The rotation of the fourth rotating plate 22 will further drive the clamping plate 23 at the bottom to move. The movement of the clamping plate 23 will cause the moving column 19 of its side wall to slide inside the collar 18. Through this multi-stage linkage mechanism, the clamping plates 23 on both sides will be driven to gather together, thereby achieving the fixation of the drone. =Not only improves the stability of the drone on the lifting platform, but also ensures its safety during operation.

[0036] Working principle: when using the lifting platform for drones, first place the drone on top of the moving plate 6, then drive the first rotating plate 8 to rotate through the output end of the electric push rod 7, then the first rotating plate 8 rotates to drive the L-shaped support plate 9 on the top to rotate, then the L-shaped support plate 9 rotates to drive the first connecting plate 11 of the side wall to move, then the first connecting plate 11 moves to drive the third rotating plate 21 to rotate, the third rotating plate 21 rotates to drive the second rotating plate 20 at the bottom to rotate, and the third rotating plate 21 rotates the fourth rotating plate 22 at the bottom during the rotation process, and finally the fourth rotating plate 22 rotates to drive the clamping plate 23 at the bottom to move, and the movement of the clamping plate 23 will make the moving column 19 of the side wall slide inside the ring 18, in summary, the clamping plates 23 on both sides are driven to gather together, so as to achieve the effect of fixing the drone;

[0037] Then, the linkage shaft 12 is driven to rotate through the output end of the motor 4. During the rotation of the linkage shaft 12, the first rotating rod 14 of the outer wall will be driven to rotate. The rotation of the first rotating rod 14 will rotate the second rotating rod 15 of the side wall. Next, the rotation of the second rotating rod 15 will drive the rotating block 16 of the side wall to move together. Subsequently, the movement of the rotating block 16 will make the top movable plate 6 slide inside the protective shell 1, thereby achieving the effect of adjusting the height.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting platform for an unmanned aerial vehicle, comprising a protective shell (1), characterized in that: The bottom of the protective shell (1) is fixedly connected to a universal wheel (2), the side wall of the protective shell (1) is fixedly connected to a handrail (5), the side wall of the protective shell (1) is fixedly connected to an L-shaped connecting plate (3), and the side wall of the L-shaped connecting plate (3) is provided with a driving assembly; The driving assembly comprises a motor (4), the outer wall of the motor (4) is fixedly connected to the side wall of the L-shaped connecting plate (3), the output end of the motor (4) is fixedly connected to a linkage shaft (12), the outer wall of the linkage shaft (12) is fixedly connected to a first rotating rod (14), the side wall of the first rotating rod (14) is provided with a bottom support plate (13), the bottom of the bottom support plate (13) is fixedly connected to the inner wall of the protective shell (1), the side wall of the first rotating rod (14) is rotatably connected to a second rotating rod (15), the side wall of the second rotating rod (15) is rotatably connected to a rotating block (16), the top of the rotating block (16) is fixedly connected to a moving plate (6), the outer wall of the moving plate (6) is slidably connected to the inside of the protective shell (1), and the bottom of the moving plate (6) is provided with a supporting assembly.

2. The lifting platform for an unmanned aerial vehicle according to claim 1, characterized in that: The support assembly comprises a base plate (10), the bottom of the base plate (10) is fixedly connected to the top of the movable plate (6), and the top of the base plate (10) is fixedly connected to a second fixed plate (24).

3. The lifting platform for an unmanned aerial vehicle according to claim 2, characterized in that: The bottom of the movable plate (6) is fixedly connected to an electric push rod (7), and the output end of the electric push rod (7) is fixedly connected to a first rotating plate (8).

4. The lifting platform for an unmanned aerial vehicle according to claim 3, characterized in that: The top of the first rotating plate (8) is rotatably connected to an L-shaped support plate (9), the side wall of the L-shaped support plate (9) is fixedly connected to a first connecting plate (11), and the side wall of the first connecting plate (11) is rotatably connected to a third rotating plate (21).

5. The lifting platform for an unmanned aerial vehicle according to claim 4, characterized in that: The bottom of the third rotating plate (21) is rotatably connected to the second rotating plate (20), the bottom of the second rotating plate (20) is rotatably connected to the first fixed plate (17), and the side wall of the first fixed plate (17) is fixedly connected to the side wall of the second fixed plate (24).

6. The lifting platform for a drone according to claim 5, characterized in that: A collar (18) is fixedly connected to the top of the first fixed plate (17), and a movable column (19) is slidably connected to the inner wall of the collar (18).

7. The lifting platform for an unmanned aerial vehicle according to claim 6, characterized in that: One end of the movable column (19) is fixedly connected to a clamping plate (23), the bottom of the third rotating plate (21) is rotatably connected to a fourth rotating plate (22), and one end of the fourth rotating plate (22) is rotatably connected to the inner wall of the clamping plate (23).

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