Take-off and landing lifting platform of aerial survey unmanned aerial vehicle

Abstract

The utility model provides a take-off and landing lifting platform of an aerial survey unmanned aerial vehicle, which comprises a support frame, lifting rods are arranged in four upright posts of the support frame in a sliding manner, a landing platform is fixedly arranged at the tops of the four lifting rods, a driving component is arranged between the support frame and the lifting rods, and lifting legs are fixedly arranged at the bottoms of the four upright posts of the lifting rods. Sharp feet are fixedly mounted at the bottoms of the lifting legs; the driving assembly comprises driving shafts, connecting rods, a movable shaft, a long groove, a worm gear and a worm, the two driving shafts and the worm are movably installed in the connecting frame of the supporting frame, the worm is located between the two driving shafts and meshed with the worm gear on the driving shafts, the two ends of the outer wall of each driving shaft are fixedly connected with the connecting rods, and the movable shaft is fixedly installed at the bottom of the lifting rod. A long groove is formed in the connecting rod, and the movable shaft is installed in the long groove in a sliding mode. The problems that the height of an aerial survey unmanned aerial vehicle landing platform cannot be adjusted, so that grass makes contact with the unmanned aerial vehicle during landing, equipment is damaged, and landing is unstable are solved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) landing platform technology, and in particular to a landing and lifting platform for an aerial surveying UAV. Background Technology

[0002] With social development, aerial surveying drones, with their flexibility and efficiency, have been widely used in many fields such as topographic mapping, urban planning, and disaster monitoring. They can quickly acquire high-resolution image data and provide accurate information support for various industries.

[0003] However, when aerial survey drones land after completing their missions, they require a stable landing platform to ensure safety. Existing aerial survey drones are generally used outdoors, and they often land on grassy ground. Since existing landing platforms cannot adjust the altitude, grass may come into contact with the drone when it lands. This can not only entangle the drone's propellers, landing gear, and other components, causing damage to the drone and affecting its subsequent normal use, but it can also cause the drone to land unsteadily, resulting in accidents such as tipping over, or even causing safety incidents, seriously threatening the drone's flight safety and the smooth progress of data collection. Summary of the Invention

[0004] In view of this, the present invention provides a take-off and landing platform for an aerial surveying drone. The main technical problem to be solved is to address the issue that the height of the existing aerial surveying drone landing platform is not adjustable, which leads to equipment damage and unstable landing caused by grass contacting the drone during landing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a take-off and landing platform for an aerial surveying UAV, comprising a support frame, wherein lifting rods are slidably installed inside the four columns of the support frame, a landing platform is fixedly installed on the top of the four lifting rods, a drive assembly is installed between the support frame and the lifting rods, and lifting legs are fixedly installed at the bottom of the four columns of the lifting rods, with pointed feet fixedly installed at the bottom of the lifting legs.

[0006] The drive assembly includes a drive shaft, a connecting rod, a movable shaft, a long groove, a worm gear, and a worm. Two drive shafts and a worm are movably installed inside the connecting frame of the support frame. The worm is located between the two drive shafts. Connecting rods are fixedly connected to both ends of the outer wall of the drive shaft. A movable shaft is fixedly installed at the bottom of the lifting rod. A long groove is formed inside the connecting rod, and the movable shaft is slidably installed inside the long groove. Worm gears are fixedly connected to the outer wall of the drive shaft, and the worm is located between two worm gears and meshes with them.

[0007] By adopting the above technical solution, the lifting rod can be moved up and down through the transmission of the drive component, thereby adjusting the height of the landing platform and enabling the landing platform to avoid obstacles such as grass on the ground, providing a safe and stable landing environment for the drone.

[0008] Furthermore, the lifting leg includes an outer cylinder, a lead screw, and a rotating sleeve. The outer cylinder is fixedly installed at the bottom of the support frame's upright. The lead screw is slidably installed inside the outer cylinder. The rotating sleeve is rotatably installed at the bottom of the outer cylinder. The rotating sleeve has a screw hole corresponding to the lead screw inside.

[0009] By adopting the above technical solution, the lead screw can slide up and down inside the outer cylinder, thereby adjusting the length of the lifting leg to adapt to different terrains and adjust the level of the landing platform.

[0010] Furthermore, a pointed foot is fixedly installed at the bottom of the lead screw, and the pointed foot is located at the bottom of the rotating sleeve.

[0011] By adopting the above technical solution, the pointed foot can form a stable support point on the ground, effectively preventing the support from sliding after being inserted into the ground, enhancing the stability of the entire support under various ground conditions, and ensuring the safe landing of the drone.

[0012] Furthermore, a guide block is fixedly connected to the top of the lead screw, and a guide groove is provided on the inner wall of the outer cylinder, with the guide block located inside the guide groove.

[0013] By adopting the above technical solution, the cooperation between the guide block and the guide groove can restrict the rotation of the lead screw, so that the lead screw can only move up and down along the direction of the guide groove, ensuring the smoothness and accuracy of the lifting leg adjustment process.

[0014] Furthermore, the support frame has a sliding groove inside the upright, and the connecting rod is located inside the sliding groove.

[0015] By adopting the above technical solution, the slide provides guidance and space for the rotation and movement of the connecting rod, enabling the connecting rod to smoothly push the lifting rod up and down under the drive of the drive component.

[0016] Furthermore, a throttle is fixedly installed at the bottom of the worm gear, and the throttle is located at the bottom of the support frame connecting frame.

[0017] By adopting the above technical solution, the throttle provides the operator with a convenient point of force application, making it easy for the operator to drive the worm gear to rotate by turning the throttle.

[0018] By employing the above technical solution, the landing and take-off platform of the aerial survey UAV of this utility model has at least the following beneficial effects:

[0019] (1) Compared with the prior art, the landing platform of this aerial survey UAV, by setting a drive component, when the operator turns the throttle, the throttle drives the worm to rotate. Since the worm and the worm wheel mesh with each other, the rotation of the worm will drive the two worm wheels to rotate in opposite directions at the same time. The worm wheel is fixedly connected to the drive shaft, which in turn drives the drive shaft to rotate. When the drive shaft rotates, the connecting rods fixed at both ends of its outer wall rotate accordingly. The movable shaft at the bottom of the lifting rod is slidably installed in the long groove inside the connecting rod. The rotation of the connecting rod, through the cooperation of the movable shaft and the long groove, pushes the four lifting rods to move upward at the same time, thereby realizing the increase of the landing platform height. Conversely, turning the throttle in the opposite direction can reduce the landing platform height. Moreover, the worm wheel and worm gear mechanism has a self-locking ability. When the landing platform is adjusted to a suitable height, it can remain stable and will not change on its own due to external forces or other factors, ensuring the stability and reliability of the platform height when the UAV lands. It effectively avoids the contact between obstacles such as grass and the UAV, and protects the safety of the UAV equipment.

[0020] (2) Compared with the prior art, the landing platform of this aerial survey UAV is equipped with lifting legs and pointed feet. When encountering uneven ground, the operator can rotate the rotating sleeve at the bottom of the lifting leg. Since the rotating sleeve has a screw hole corresponding to the lead screw, the rotation of the rotating sleeve will drive the lead screw to slide up and down in the outer cylinder through the screw engagement. Where the ground is low, the lead screw of the corresponding lifting leg will be extended downward to adjust the height of that position. By adjusting the length of multiple lifting legs, the landing platform can be made to reach a horizontal state. At the same time, the pointed feet at the bottom of the lead screw can be inserted into the ground to provide stable support for the support and prevent the support from sliding or tilting on the ground. It can ensure that the landing platform remains horizontal and stable under any complex terrain conditions, providing a safe and reliable landing foundation for the UAV, and greatly improving the safety and stability of UAV landing. Attached Figure Description

[0021] Figure 1 and Figure 2 These are schematic diagrams of the structure of this utility model from different angles;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0024] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0025] Figure 6 for Figure 3 Enlarged structural diagram at point C;

[0026] Figure 7 for Figure 3 Enlarged structural diagram at point D;

[0027] Figure 8 This is an enlarged structural diagram of a portion of the present invention.

[0028] In the diagram: 1. Support frame; 101. Slide groove; 2. Lifting rod; 3. Lowering platform; 4. Drive assembly; 401. Drive shaft; 402. Connecting rod; 403. Movable shaft; 404. Long groove; 405. Worm gear; 406. Worm; 407. Throttle; 5. Lifting leg; 501. Outer cylinder; 502. Lead screw; 503. Rotating sleeve; 504. Guide block; 505. Guide groove; 6. Pointed foot. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this utility model, it should be noted that the terms "front", "rear", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Reference Figure 1-8This utility model provides a landing platform for an aerial surveying UAV, including a support frame 1. Lifting rods 2 are slidably installed inside the four columns of the support frame 1. The columns of the support frame 1 provide sliding tracks for the lifting rods 2, allowing them to move up and down along the columns, thus providing the basic conditions for adjusting the height of the landing platform 3. The landing platform 3 is fixedly installed on the top of the four lifting rods 2. When the lifting rods 2 move up and down, they can drive the landing platform 3 to rise and fall synchronously, thereby adjusting the height of the landing platform 3 and providing a suitable landing height for the UAV. A drive assembly 4 is installed between the support frame 1 and the lifting rods 2, enabling height adjustment of the landing platform 3. Lifting legs 5 are fixedly installed at the bottom of the four columns of the lifting rods 2. The lifting legs 5 can adjust their length according to the actual ground conditions to adapt to different terrains and ensure the horizontal state of the landing platform 3. Pointed feet 6 are fixedly installed at the bottom of the lifting legs 5, which can insert into the ground to provide a stable support point for the support and enhance its stability.

[0033] The drive assembly 4 includes a drive shaft 401, a connecting rod 402, a movable shaft 403, a long groove 404, a worm gear 405, and a worm 406. Two drive shafts 401 and worm gears 406 are movably mounted inside the connecting frame of the support frame 1. The connecting frame of the support frame 1 provides installation space and a support structure for the drive shafts 401 and worm gears 406, allowing them to rotate flexibly within the connecting frame. This provides the foundation for the transmission operation of the drive assembly 4 and ensures the stability of the rotation of the drive shafts 401 and worm gears 406. The worm gear 406 is located between the two drive shafts 401. Connecting rods 402 are fixedly connected to both ends of the outer wall of the drive shaft 401. A movable shaft 403 is fixedly mounted at the bottom of the lifting rod 2. The movable shaft 403 is fitted with the long groove 404 inside the connecting rod 402. The connecting rod 402 can slide within the long groove 404. When the connecting rod 402 rotates, the interaction between the movable shaft 403 and the long groove 404 converts the rotation of the connecting rod 402 into the up and down movement of the lifting rod 2. The long groove 404 is opened inside the connecting rod 402, and the movable shaft 403 is slidably installed inside the long groove 404. The outer wall of the drive shaft 401 is fixedly connected to the worm gear 405, and the worm 406 is located between the two worm gears 405 and meshes with them. The meshing transmission between the worm gear 405 and the worm 406 can transmit the rotation of the worm 406 to the worm gear 405, thereby driving the drive shaft 401 to rotate. At the same time, the self-locking characteristic of the worm gear 405 and worm 406 mechanism can ensure that the lowering platform 3 remains stable after being adjusted to a suitable height.

[0034] The lifting leg 5 includes an outer cylinder 501, a lead screw 502, and a rotating sleeve 503. The outer cylinder 501 is fixedly installed at the bottom of the upright of the support frame 1. The lead screw 502 is slidably installed inside the outer cylinder 501. The lead screw 502 slides up and down inside the outer cylinder 501 to adjust the length of the lifting leg 5, thereby adjusting the level of the landing platform 3 to adapt to different terrains. The rotating sleeve 503 is rotatably installed at the bottom of the outer cylinder 501. By rotating the rotating sleeve 503, the operator can drive the lead screw 502 to move up and down by using the screw hole inside the rotating sleeve 503 that corresponds to the lead screw 502. The rotating sleeve 503 has a screw hole inside that corresponds to the lead screw 502.

[0035] The bottom of the lead screw 502 is fixedly equipped with a pointed foot 6, which is located at the bottom of the rotating sleeve 503. When the lifting leg 5 is adjusted to the appropriate length, the bracket is pressed down forcefully, and the pointed foot 6 can be inserted into the soil to prevent the bracket from sliding or tilting on the ground.

[0036] A guide block 504 is fixedly connected to the top of the lead screw 502. A guide groove 505 is provided on the inner wall of the outer cylinder 501. The guide block 504 is located inside the guide groove 505. The cooperation between the guide block 504 and the guide groove 505 can restrict the rotation of the lead screw 502, so that the lead screw 502 can only move up and down along the direction of the guide groove 505, ensuring the smoothness and accuracy of the adjustment process of the lifting leg 5. A sliding groove 101 is provided inside the upright of the support frame 1. The connecting rod 402 is located inside the sliding groove 101. The sliding groove 101 provides guidance and space for the movement of the connecting rod 402, so that the connecting rod 402 can move smoothly within the sliding groove 101.

[0037] A throttle 407 is fixedly installed at the bottom of the worm gear 406. The throttle 407 is located at the bottom of the connecting frame of the support frame 1. By turning the throttle 407, the operator can easily drive the worm gear 406 to rotate, thereby realizing the operation of the drive component 4, making the height adjustment of the landing platform 3 more convenient and labor-saving, and reducing the labor intensity of the operator.

[0038] Working principle: First, place the support frame 1 stably on the ground of the predetermined landing area. If the ground is uneven, observe the ground condition and determine the lower position. Operate the lifting leg 5 corresponding to that position. By rotating the rotating sleeve 503, the screw 502 is made to slide up and down in the outer cylinder 501 through the screw hole inside the rotating sleeve 503 corresponding to the lead screw 502. When the length of the lead screw 502 extending out of the outer cylinder 501 increases, the length of the lifting leg 5 at the corresponding position increases, thereby raising the height of the landing platform 3 on that side. Conversely, the height is lowered so that the landing platform 3 reaches a horizontal state.

[0039] After the landing platform 3 is leveled, the operator presses the entire support down. At this time, the pointed feet 6 at the bottom of the lifting leg 5 can easily insert into the ground soil due to their sharp shape, preventing the support from sliding or tilting on the ground, enhancing the stability of the support under various ground conditions, and ensuring that the position of the support remains fixed during subsequent operations and drone landing.

[0040] When the height of the landing platform 3 needs to be adjusted, the operator turns the throttle 407. The rotation of the throttle 407 drives the worm gear 406 to rotate synchronously. Since the worm gear 406 meshes with the two worm wheels 405 located on both sides of it, the rotation of the worm gear 406 is transmitted to the worm wheels 405, causing the two worm wheels 405 to rotate in opposite directions simultaneously. The worm wheels 405 are fixedly connected to the drive shaft 401. The rotation of the worm wheels 405 drives the drive shaft 401 to rotate. The connecting rods 402, which are fixedly connected to both ends of the outer wall of the drive shaft 401, also rotate accordingly. At this time, the movable shaft 403, which is fixedly installed at the bottom of the lifting rod 2, slides in the long groove 404 inside the connecting rod 402. As the connecting rod 402 rotates, through the interaction between the movable shaft 403 and the long groove 404, the rotation of the connecting rod 402 is converted into the simultaneous upward or downward movement of the four lifting rods 2, thereby raising or lowering the height of the landing platform 3.

[0041] Once the landing platform 3 is adjusted to the appropriate height, the self-locking characteristics of the worm gear 405 and worm 406 mechanism can keep the landing platform 3 stable. Therefore, even if subjected to external forces, the landing platform 3 will not change its height on its own. At the same time, the connecting frame of the support frame 1 encloses the worm gear 405 and worm 406, forming a relatively closed space, which effectively prevents external dust, impurities, etc. from entering the drive assembly 4, reducing component wear, extending the service life of the drive assembly 4, and ensuring the long-term stable operation of the support.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A landing platform for an aerial surveying unmanned aerial vehicle, comprising a support frame (1), characterized in that: The support frame (1) has four columns with lifting rods (2) slidably installed inside. The top of the four lifting rods (2) is fixedly installed with a landing platform (3). A drive assembly (4) is installed between the support frame (1) and the lifting rods (2). Lifting legs (5) are fixedly installed at the bottom of the four columns of the lifting rods (2). Pointed feet (6) are fixedly installed at the bottom of the lifting legs (5). The drive assembly (4) includes a drive shaft (401), a connecting rod (402), a movable shaft (403), a long groove (404), a worm gear (405), and a worm (406). Two drive shafts (401) and a worm (406) are movably installed inside the connecting frame of the support frame (1). The worm (406) is located between the two drive shafts (401). The two ends of the outer wall of the drive shaft (401) are fixedly connected to the connecting rod (402). The bottom of the lifting rod (2) is fixedly installed with the movable shaft (403). The connecting rod (402) has a long groove (404) inside. The movable shaft (403) is slidably installed inside the long groove (404). The outer wall of the drive shaft (401) is fixedly connected to the worm gear (405). The worm (406) is located between the two worm gears (405) and meshes with the two worm gears (405).

2. The take-off and landing platform of an aerial survey UAV according to claim 1, characterized in that: The lifting leg (5) includes an outer cylinder (501), a lead screw (502), and a rotating sleeve (503). The outer cylinder (501) is fixedly installed at the bottom of the support frame (1). The lead screw (502) is slidably installed inside the outer cylinder (501). The rotating sleeve (503) is rotatably installed at the bottom of the outer cylinder (501). The rotating sleeve (503) has a screw hole inside that corresponds to the lead screw (502).

3. The take-off and landing platform of an aerial survey UAV according to claim 2, characterized in that: A guide block (504) is fixedly connected to the top of the lead screw (502), and a guide groove (505) is provided on the inner wall of the outer cylinder (501). The guide block (504) is located inside the guide groove (505).

4. The take-off and landing platform of an aerial survey UAV according to claim 2, characterized in that: The pointed foot (6) is fixedly installed at the bottom of the lead screw (502), and the pointed foot (6) is located below the rotating sleeve (503).

5. The take-off and landing platform of an aerial survey UAV according to claim 1, characterized in that: The support frame (1) has a groove (101) inside the upright, and the connecting rod (402) is located inside the groove (101).

6. The take-off and landing platform of an aerial survey UAV according to claim 1, characterized in that: A throttle (407) is fixedly installed at the bottom of the worm gear (406), and the throttle (407) is located at the bottom of the support frame (1) connecting frame.

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