Unmanned aerial vehicle takeoff and landing platform with automatic leveling function

Abstract

The invention discloses a self-leveling unmanned aerial vehicle landing platform, and relates to the technical field of unmanned aerial vehicles, the self-leveling unmanned aerial vehicle landing platform comprises a landing platform body, an adjusting plate is arranged below the landing platform body, and servo motors are mounted at the top end of the adjusting plate at equal angles; the output end of the servo motor is provided with an adjusting mechanism used for adjusting the lifting platform body, and the first threaded rod is connected with the output end of the servo motor. The output end of a servo motor can drive a first threaded rod to rotate, the first threaded rod can drive a movable block to move on the outer side of the first threaded rod when rotating, meanwhile, the top end of the movable block can drive a hinge rod to deflect in angle, and then the levelness of the edge of the lifting platform body can be adjusted; the stability of the takeoff and landing platform body during use is guaranteed, and the situation that the unmanned aerial vehicle takeoff and landing are unstable due to angle deviation of the takeoff and landing platform body is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, and in particular to an automatically leveled unmanned aerial vehicle take-off and landing platform. Background Art

[0002] A drone landing platform refers to a special platform for drones to take off, land, and perform other operations. According to their functions, uses, and structural characteristics, drone landing platforms can be divided into many types, such as fixed landing platforms, portable landing platforms, and fully automatic landing platforms. When in use, since portable landing platforms can enable drones to be used in various places, portable landing platforms are prone to tilt and offset when placed, which in turn causes the drone to be unstable and slip when taking off and landing.

[0003] In order to overcome the above-mentioned defects, a UAV landing platform with announcement number CN220535989U is provided, including a landing plate, a wing plate is arranged on the side of the landing plate, the landing plate is connected to the telescopic rod through a connecting assembly, a liquid tube is arranged on the upper surface of the landing plate, the liquid tube includes a transparent shell, the side of the transparent shell is marked with horizontal scale lines, and the transparent shell is filled with liquid; the wing plate connected to the side of the landing plate can be used to extend the surface of the landing plate to adapt to various take-off terrains, and the horizontality of the landing plate can be adjusted by adjusting the length of each telescopic rod, and the liquid tube is used to calibrate the flatness of the landing plate, thereby ensuring the horizontality of the landing plate and ensuring the horizontality of the take-off and landing posture of the UAV, so as to ensure the stability of the take-off and landing of the UAV and reduce the risk of accidents and accidents during take-off and landing. A new type of convenient UAV landing platform with publication number CN117682141A, a landing plate is provided on the top of the landing platform body, a first buffer assembly is provided below the landing plate and inside the landing platform body, a buffer plate is provided inside the landing platform body and at the bottom of the first buffer assembly, and a protective assembly is provided on the top of the landing plate; the first buffer assembly is used to buffer the buffer plate; the second buffer assembly is used to cooperate with the first buffer assembly to buffer the buffer plate; the protective assembly is used to protect the UAV blades.

[0004] The above mechanism adjusts the horizontality by using a telescopic rod to adjust the horizontality, but in actual use, the position of the drone landing platform itself is not convenient to fix during use, which makes it easy for the drone landing platform to shift its position when the drone descends. Summary of the invention

[0005] The purpose of the present invention is to provide an automatically leveling drone landing platform to solve the problem raised in the above background technology that since the portable landing platform can enable the drone to be used in various places, the portable landing platform is prone to tilt and offset when placed, which in turn causes the drone to become unstable and slip when taking off and landing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic leveling UAV landing platform, comprising a landing platform body, an adjustment plate is arranged below the landing platform body, a servo motor is installed at an equal angle on the top of the adjustment plate, and an adjustment mechanism for adjusting the landing platform body is installed at the output end of the servo motor, the adjustment mechanism comprises a first threaded rod, and the first threaded rod is connected to the output end of the servo motor, the outer side of the first threaded rod is threadedly connected to a movable block, and the top of the movable block is hinged with a hinged rod, the top of the hinged rod is rotatably connected to the bottom end of the landing platform body, movable plates are arranged at the lower ends of the front and rear ends of the adjustment plate, and a limiting mechanism for fixing the position of the landing platform body is arranged at the lower end of the movable plate.

[0007] Furthermore, the top of the adjustment plate is provided with slide rails at equal angles, and the bottom of the movable block is provided with sliders matching the slide rails, and the adjustment plate and the movable block are connected by sliding through the slide rails and the sliders to form a sliding mechanism.

[0008] Furthermore, the limiting mechanism includes a limiting rod, and the limiting rod is arranged at the bottom end of the movable plate, and hinge frames are arranged on the left and right sides of the movable plate, and one end between the hinge frames is rotatably connected with a universal wheel, and the universal wheel is arranged at the four corners below the adjustment plate, and a pneumatic telescopic rod is connected to the middle position of both sides of the bottom end of the adjustment plate, and the output end of the pneumatic telescopic rod is connected to the movable plate.

[0009] Furthermore, a fixing rod is provided at each of the four corners at the top of the adjustment plate, and a second threaded rod is rotatably connected inside the fixing rod, a sleeve rod is sleeved on the outer side of the second threaded rod, a fixing block is provided at the upper end of the fixing rod, and a ball is provided inside the fixing block, and the ball and the second threaded rod are adapted to each other.

[0010] Furthermore, a rotating rod is arranged at the middle position of the top end of the adjusting plate, and the outer side of the sleeve rod is connected to the rotating rod through a pulley transmission mechanism.

[0011] Furthermore, the lower end of the rotating rod extends to the bottom of the adjusting plate and is connected to the upper end of the pneumatic telescopic rod through a pulley transmission mechanism, and the pneumatic telescopic rod and the adjusting plate are rotatably connected.

[0012] Furthermore, a reinforcement mechanism is provided inside the limit rod, and the reinforcement mechanism includes a driving gear, and the driving gear is provided at the top of the movable plate, the driving gear is connected to the movable plate, and the front and rear ends of the top of the movable plate are rotatably connected to driven gears, the driven gear and the driving gear are meshed with each other, and the internal thread of the driven gear is connected to a third threaded rod, the bottom end of the third threaded rod extends to the limit rod and is connected to a sliding block, and both sides of the bottom end of the sliding block are hingedly connected to auxiliary rods, one end of the auxiliary rods is hingedly connected to a tilting rod, and limiting grooves are provided on both sides of the limit rod.

[0013] Furthermore, the sliding block and the limiting rod are longitudinally slidably connected, and the length of the third threaded rod is greater than the length of the limiting rod.

[0014] Furthermore, the length of the tilting rod is greater than the radius of the limiting rod, and the tilting rod passes through the limiting groove and extends to the outside of the limiting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The output end of the servo motor can drive the first threaded rod to rotate. When the first threaded rod rotates, it can drive the movable block to move outside it. At the same time, the top of the movable block will drive the hinged rod to deflect at an angle, so that the horizontality at the edge of the landing platform body can be adjusted to ensure the stability of the landing platform body during use, and effectively avoid the situation where the drone takes off and lands unsteadily due to the angle deviation of the landing platform body.

[0016] Furthermore, the output end of the pneumatic telescopic rod can push the movable plate below downward, thereby changing the angles of the articulated frames on both sides of the movable plate. The height of the lowest end of the limit rod is lower than the height of the bottom end of the universal wheel, so that the bottom end of the limit rod can be close to the ground. At the same time, the limit rod at the bottom end of the movable plate moves downward and inserts itself into the ground, so that the position of the landing platform body itself can be fixed, effectively avoiding the position displacement of the landing platform body when it is subjected to the impact of the drone taking off and landing.

[0017] Furthermore, when the position of the landing platform body needs to be adjusted, the output end of the pneumatic telescopic rod moves upward, so that the movable plate drives the limit rod to move upward, so that the height of the lowest end of the limit rod is higher than the bottom end of the universal wheel, and then the bottom end of the universal wheel contacts the ground, so that the position of the landing platform body can be flexibly adjusted.

[0018] 2. The sleeve rod can drive the rotating rod to rotate through the pulley, and the belt transmission mechanism at the lower end of the rotating rod can drive the pneumatic telescopic rod and the driving gear to rotate. When the driving gear rotates, it meshes with the driven gear, so that the driven gear can drive the third threaded rod to move downward, so that the third threaded rod pushes the sliding block downward synchronously. Due to the change in the angle between the auxiliary rod and the tilting rod, the tilting rod is pushed out by the auxiliary rod and extends to the outside of the limit groove. The tilting rod can remain in a divergent state in the soil, thereby increasing the firmness of the limit rod when it is fixed in the soil.

[0019] Furthermore, the tilt rod can be stored inside the limit rod for protection when not in use, thereby avoiding the problem of the tilt rod being broken or damaged due to collision or other reasons when not in use, thereby effectively extending the service life of the tilt rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the formal structure of the present invention; Figure 2 This is a schematic diagram of the formal cross-sectional structure of the present invention; Figure 3 It is a schematic diagram of the structure of the limiting mechanism and the reinforcing mechanism of the present invention; Figure 4 It is a structural schematic diagram of the regulating mechanism of the present invention; Figure 5 It is a structural schematic diagram of the use state of the limiting mechanism and the reinforcing mechanism of the present invention; Figure 6 It is a structural schematic diagram of the limiting mechanism of the present invention; Figure 7 It is a schematic cross-sectional structure diagram of the limiting mechanism of the present invention; Figure 8 It is a structural schematic diagram of the reinforcement mechanism of the present invention in use state; Fig. 9 It is a schematic diagram of the exploded structure of the rotating mechanism of the present invention.

[0021] In the figure: 1. the lifting and lowering platform body; 2. the adjusting plate; 3. the servo motor; 4. the first threaded rod; 5. the movable block; 6. the articulated rod; 7. the slide rail; 8. the slider; 9. the fixed rod; 10. the second threaded rod; 11. the fixed block; 12. the ball bearing; 13. the sleeve rod; 14. the rotating rod; 15. the movable plate; 16. the articulated frame; 17. the universal wheel; 18. the limit rod; 19. the pneumatic telescopic rod; 20. the driving gear; 21. the third threaded rod; 22. the driven gear; 23. the sliding block; 24. the auxiliary rod; 25. the tilting rod; 26. the limit groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1: Figure 1 , Figure 2 , Figure 4 and Fig. 9 The technical solution shown in the figure is to solve the problem that the portable landing platform can enable the drone to be used in various places, so the portable landing platform is prone to tilt and offset when placed, which leads to the problem that the drone is unstable and slips when taking off and landing: the automatic leveling drone landing platform discloses an adjustment mechanism, including a landing platform body 1, an adjustment plate 2 is arranged below the landing platform body 1, a servo motor 3 is installed at the top of the adjustment plate 2 at equal angles, and a useful The adjusting mechanism for adjusting the landing platform body 1 includes a first threaded rod 4, and the first threaded rod 4 is connected to the output end of the servo motor 3. The outer side of the first threaded rod 4 is threadedly connected to a movable block 5, and the top of the movable block 5 is hinged to a hinged rod 6. The top of the hinged rod 6 is rotatably connected to the bottom end of the landing platform body 1. The top of the adjusting plate 2 is provided with a slide rail 7 at an equal angle, and the bottom end of the movable block 5 is provided with a slider 8 matching the slide rail 7. The sliding connection between the adjusting plate 2 and the movable block 5 through the slide rail 7 and the slider 8 constitutes a sliding mechanism.

[0024] In this example, when in use, the position of the landing platform body 1 itself is fixed by a limiting mechanism, and the horizontality of the landing platform body 1 is adjusted according to the installation condition of the landing platform body 1 after fixation, and the first threaded rod 4 can be driven to rotate by the output end of the servo motor 3. When the first threaded rod 4 rotates, it can drive the movable block 5 to move outside it, and at the same time, the top of the movable block 5 will drive the hinge rod 6 to deflect in angle, so that the horizontality at the edge of the landing platform body 1 can be adjusted, thereby ensuring the stability of the landing platform body 1 when in use, and effectively avoiding the unstable take-off and landing of the drone due to the angular deviation of the landing platform body 1; at the same time, the mutual cooperation of the slide rail 7 and the slider 8 can make the movement of the movable block 5 more stable, and effectively avoid the angular deflection of the movable block 5 when it moves outside the first threaded rod 4.

[0025] Embodiment 2: Figure 1-Figure 3 , Figure 5 , Figure 6 and Figure 7The technical solution shown is to solve the problem of low stability of the drone landing platform due to its portability when in use: the automatic leveling drone landing platform discloses a limiting mechanism, and the lower ends of the front and rear ends of the adjustment plate 2 are provided with movable plates 15, and the lower end of the movable plate 15 is provided with a limiting mechanism for fixing the position of the landing platform body 1, and the limiting mechanism includes a limiting rod 18, and the limiting rod 18 is arranged at the bottom end of the movable plate 15, and the left and right sides of the movable plate 15 are provided with hinged frames 16, and one end between the hinged frames 16 is rotatably connected with a universal wheel 17, and the universal wheel 17 is arranged at the four corners below the adjustment plate 2, and the middle positions of the two sides of the bottom end of the adjustment plate 2 are connected with pneumatic telescopic rods 19, and the pneumatic The output end of the telescopic rod 19 is connected to the movable plate 15, and fixed rods 9 are provided at the four corners of the top of the adjusting plate 2, and the fixed rod 9 is rotatably connected to the second threaded rod 10, and the outer side of the second threaded rod 10 is sleeved with a sleeve rod 13, and the upper end of the fixed rod 9 is provided with a fixed block 11, and the interior of the fixed block 11 is provided with a ball 12, and the ball 12 and the second threaded rod 10 are adapted to each other. A rotating rod 14 is provided at the middle position of the top of the adjusting plate 2, and the outer side of the sleeve rod 13 is connected to the rotating rod 14 through a pulley transmission mechanism, and the lower end of the rotating rod 14 extends to the bottom of the adjusting plate 2 and is connected to the upper end of the pneumatic telescopic rod 19 through a pulley transmission mechanism, and the pneumatic telescopic rod 19 and the adjusting plate 2 are rotatably connected.

[0026] In this example, when the landing platform body 1 is in use, the output end of the pneumatic telescopic rod 19 can push the movable plate 15 below downward, thereby changing the angle of the articulated frames 16 on both sides of the movable plate 15, and the lowest end of the limit rod 18 is lower than the bottom end of the universal wheel 17, so that the bottom end of the limit rod 18 can be in contact with the ground. At the same time, the limit rod 18 at the bottom end of the movable plate 15 moves downward and inserts itself into the ground, so that the position of the landing platform body 1 itself can be fixed, effectively avoiding the position displacement of the landing platform body 1 when it is subjected to the impact of the landing and taking off of the drone; when the position of the landing platform body 1 needs to be adjusted, the output end of the pneumatic telescopic rod 19 moves upward, so that the movable plate 15 drives the limit rod 18 to move upward, so that the lowest end of the limit rod 18 is higher than the bottom end of the universal wheel 17, and then the bottom end of the universal wheel 17 contacts the ground, so that the position of the landing platform body 1 can be flexibly adjusted.

[0027] Embodiment 3: Figure 1-Figure 3 , Figure 5 , Figure 7 and Figure 8The technical solution shown is based on the first embodiment, in order to solve the problem that the limit rod 18 is easily loosened due to vibration or collision after being inserted into the ground: the automatic leveling UAV landing platform discloses a reinforcement mechanism, the limit rod 18 is provided with a reinforcement mechanism inside, the reinforcement mechanism includes a driving gear 20, and the driving gear 20 is provided at the top of the movable plate 15, the driving gear 20 is connected to the movable plate 15, and the front and rear ends of the top of the movable plate 15 are rotatably connected with a driven gear 22, the driven gear 22 and the driving gear 20 are meshed with each other, and the inner part of the driven gear 22 is A third threaded rod 21 is threadedly connected to the bottom of the limit rod 18, and the bottom end of the third threaded rod 21 extends to the limit rod 18 and is connected to a sliding block 23, and both sides of the bottom end of the sliding block 23 are hingedly connected to auxiliary rods 24, and one end between the auxiliary rods 24 is hingedly connected to a tilting rod 25, and both sides of the limit rod 18 are provided with limiting grooves 26, and the sliding block 23 and the limit rod 18 are longitudinally slidably connected, and the length of the third threaded rod 21 is greater than the length of the limit rod 18, the length of the tilting rod 25 is greater than the radius of the limit rod 18, and the tilting rod 25 passes through the limiting groove 26 and extends to the outside of the limit rod 18.

[0028] In this example, when the landing platform body 1 adjusts its own levelness and height through the adjustment mechanism, the bottom end of the landing platform body 1 presses the second threaded rod 10, and the lower end of the second threaded rod 10 moves toward the inside of the fixed rod 9. The fixed block 11 is provided with a ball 12 inside, and the ball 12 and the thread groove on the outside of the second threaded rod 10 are adapted to each other, so that the second threaded rod 10 can rotate synchronously during the downward movement, and the sleeve rod 13 provided on the outside of the second threaded rod 10 is driven to rotate; the sleeve rod 13 can drive the rotating rod 14 to rotate through the pulley, and the belt transmission mechanism at the lower end of the rotating rod 14 can drive the pneumatic telescopic rod 19 The auxiliary rod 24 rotates with the driving gear 20, and the driving gear 20 meshes with the driven gear 22 when rotating, so that the driven gear 22 can drive the third threaded rod 21 to move downward, so that the third threaded rod 21 pushes the sliding block 23 downward synchronously, and the sliding block 23 changes the angle of the auxiliary rod 24 when being pushed downward. Due to the change in the angle between the auxiliary rod 24 and the tilting rod 25, the tilting rod 25 is pushed out by the auxiliary rod 24 and extends to the outside of the limiting groove 26, so that the tilting rod 25 can remain in a divergent state in the soil, thereby increasing the firmness of the limiting rod 18 when it is fixed in the soil, and avoiding the separation of the limiting rod 18 from the ground due to collision and other reasons.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic leveling drone landing platform, comprising a landing platform body (1), wherein an adjustment plate (2) is arranged below the landing platform body (1); the characteristics are: A servo motor (3) is mounted at an equal angle on the top of the adjustment plate (2), and an adjustment mechanism for adjusting the landing platform body (1) is mounted on the output end of the servo motor (3), the adjustment mechanism comprising a first threaded rod (4), and the first threaded rod (4) is connected to the output end of the servo motor (3), a movable block (5) is threadedly connected to the outer side of the first threaded rod (4), and a hinged rod (6) is hinged on the top of the movable block (5), and the top of the hinged rod (6) is rotatably connected to the bottom end of the landing platform body (1); movable plates (15) are arranged at the lower ends of the front and rear ends of the adjustment plate (2), and a limit mechanism for fixing the position of the landing platform body (1) is arranged at the lower end of the movable plate (15).

2. The automatic leveling UAV landing platform according to claim 1, characterized in that: The top end of the adjustment plate (2) is provided with a slide rail (7) at an equal angle, and the bottom end of the movable block (5) is provided with a slider (8) matching the slide rail (7). The adjustment plate (2) and the movable block (5) are connected by sliding via the slide rail (7) and the slider (8) to form a sliding mechanism.

3. The automatic leveling UAV landing platform according to claim 2 is characterized by: The limiting mechanism comprises a limiting rod (18), and the limiting rod (18) is arranged at the bottom end of the movable plate (15), and hinge frames (16) are arranged on both left and right sides of the movable plate (15), and one end between the hinge frames (16) is rotatably connected to a universal wheel (17), and the universal wheel (17) is arranged at four corners below the adjustment plate (2), and pneumatic telescopic rods (19) are connected to the middle positions of both sides of the bottom end of the adjustment plate (2), and the output end of the pneumatic telescopic rod (19) is connected to the movable plate (15).

4. The automatic leveling UAV landing platform according to claim 3 is characterized by: A fixing rod (9) is provided at each of the four corners at the top of the adjustment plate (2), and a second threaded rod (10) is rotatably connected inside the fixing rod (9), a sleeve rod (13) is sleeved outside the second threaded rod (10), a fixing block (11) is provided at the upper end of the fixing rod (9), and a ball (12) is provided inside the fixing block (11), and the ball (12) and the second threaded rod (10) are adapted to each other.

5. The automatic leveling UAV landing platform according to claim 4 is characterized by: A rotating rod (14) is provided at the middle position of the top end of the adjustment plate (2), and the outer side of the sleeve rod (13) is connected to the rotating rod (14) via a belt pulley transmission mechanism.

6. The automatic leveling UAV landing platform according to claim 5, characterized in that: The lower end of the rotating rod (14) extends to the bottom of the adjusting plate (2) and is connected to the upper end of the pneumatic telescopic rod (19) through a pulley transmission mechanism. The pneumatic telescopic rod (19) and the adjusting plate (2) are rotatably connected.

7. The automatic leveling UAV landing platform according to claim 6, characterized in that: The limiting rod (18) is provided with a reinforcement mechanism inside, the reinforcement mechanism comprising a driving gear (20), and the driving gear (20) is provided at the top end of the movable plate (15), the driving gear (20) is connected to the movable plate (15), and the front and rear ends of the top end of the movable plate (15) are rotatably connected to a driven gear (22), the driven gear (22) and the driving gear (20) are meshed with each other, and the inner thread of the driven gear (22) is connected to a third threaded rod (21), the bottom end of the third threaded rod (21) extends to the limiting rod (18) and is connected to a sliding block (23), and the two sides of the bottom end of the sliding block (23) are hingedly connected to auxiliary rods (24), one end of the auxiliary rod (24) is hingedly connected to a tilting rod (25), and the limiting rod (18) is provided with a limiting groove (26) on both sides.

8. The automatic leveling UAV landing platform according to claim 7, characterized in that: The sliding block (23) and the limiting rod (18) are longitudinally slidably connected, and the length of the third threaded rod (21) is greater than the length of the limiting rod (18).

9. The automatic leveling UAV landing platform according to claim 7, characterized in that: The length of the tilting rod (25) is greater than the radius of the limiting rod (18), and the tilting rod (25) passes through the limiting groove (26) and extends to the outside of the limiting rod (18).

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