A landing support for an unmanned aerial vehicle

Abstract

This utility model relates to the field of unmanned aerial vehicle (UAV) technology and provides a landing foot for a UAV, including: a mounting base; the landing foot further includes: a protective structure disposed on the surface of the mounting base; the protective structure includes: multiple slots formed at the four corners of the bottom surface of the mounting base, with positioning shafts fixedly disposed inside the multiple slots; and multiple mounting blocks slidably sleeved on the outer surfaces of the multiple positioning shafts. This utility model utilizes a damper and a buffer spring connected to the surface of the movable leg within the supporting leg to absorb impact energy from the ground. Limiting blocks slidably embedded in limiting slots provide limiting action, further buffered by bottom pads. Anti-slip textures on the bottom increase friction with the ground, providing anti-slip properties, while drainage grooves on the surface prevent mud accumulation.

Description

Technical Field

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

[0002] During takeoff and landing, the landing legs of a drone play an important role in supporting the fuselage, absorbing impact, and preventing it from tipping over.

[0003] For example, Chinese patent application CN202421589875.5 discloses a landing support for a drone, relating to the field of drone technology. The support includes a drone body; several pads are fixedly installed on the bottom of the drone body, and a fixing block is fixedly connected to the bottom of each pad. A vision sensor is fixedly installed on the bottom of the fixing block, and a screw is rotatably mounted inside the fixing block via a bearing. A motor is fixedly installed on the fixing block, and the output shaft at the bottom of the motor is fixedly connected to the top of the screw. A controller is fixedly installed inside the fixing block at the top of the motor. This invention uses a vision sensor to detect the flatness of the ground and automatically adjusts the angle of the support foot to increase the contact area between the drone and the ground. It can also control the top or bottom of the outer side of the support frame to fit against the ground, thus facilitating the placement of the drone on flat or uneven ground and improving the stability of the drone support.

[0004] In the above solution, the support feet are driven by a motor in conjunction with a vision sensor. However, the landing sites of drones vary, such as fields, grasslands, and gravel. Therefore, it is easy to fail to measure the actual distance. When the actual measurement data is inaccurate, it is not possible to react quickly and readjust. At the same time, the buffering performance is poor and it cannot effectively absorb the landing impact, which can easily lead to damage to the airborne equipment. This needs to be addressed. Utility Model Content

[0005] The purpose of this invention is to solve the problems existing in the prior art: the landing sites of drones are varied, such as fields, grasslands, and gravel, which makes it easy to fail to measure the true distance. Therefore, when the actual measurement data is inaccurate, it is difficult to react quickly and readjust. At the same time, the buffering performance is poor and it cannot effectively absorb the landing impact, which can easily lead to damage to the airborne equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a landing foot for an unmanned aerial vehicle (UAV), comprising: a mounting base, and the landing foot for the UAV further comprising:

[0007] A protective structure is disposed on the surface of the mounting base, the protective structure comprising:

[0008] Multiple slots are formed at the four corners of the bottom surface of the mounting base, and a positioning shaft is fixedly installed inside the multiple slots;

[0009] Multiple mounting blocks are slidably sleeved on the outer surface of the multiple positioning shafts;

[0010] An inclined structure is disposed on the surface of the plurality of mounting blocks, the inclined structure comprising:

[0011] Multiple grooves are formed on the bottom surface of the multiple mounting blocks, and a positioning shaft is fixedly provided on the inner wall of the multiple grooves;

[0012] A buffer structure is provided on the surface of the inclined structure.

[0013] Preferably, the protective structure further includes:

[0014] Multiple sets of buffer springs are fixedly installed on the inner walls of multiple slots at symmetrical locations. One end of each buffer spring is connected to the outer surface of the mounting block at the symmetrical location. The surfaces of the mounting blocks at the symmetrical locations are connected to the inner walls of the slots through dampers.

[0015] The technical effect of adopting the above-mentioned further solution is that the buffer spring and damper on the outer surface of the mounting block are connected to the inner wall of the slot to provide lateral buffering for the mounting block and prevent lateral impact damage to the frame.

[0016] Preferably, the inclined structure further includes:

[0017] Multiple connecting blocks are movably mounted on the outer surfaces of multiple positioning shafts, wherein the surfaces of multiple connecting blocks at symmetrical locations are connected to the inner wall of the groove by springs.

[0018] The technical effect of adopting the above-mentioned further solution is that the connecting block is connected to the inner wall of the groove by means of the second spring, which makes it convenient for the connecting block to tilt at an angle inside the groove with the second positioning shaft, and to limit and block by means of the inner wall of the groove.

[0019] Preferably, the buffer structure further includes:

[0020] Multiple support legs are fixedly mounted on the bottom surface of the multiple connecting blocks, and limit grooves are opened symmetrically on the inner wall of the multiple support legs.

[0021] The technical effect of adopting the above-mentioned further solution is that the connecting block provides a fixed working for the bottom support leg, and the limiting groove opened on the inner wall of the support leg facilitates the limiting of the parts.

[0022] Preferably, the buffer structure further includes:

[0023] Multiple movable support legs are slidably embedded inside multiple support legs. Limiting blocks are provided on the surfaces of the multiple movable support legs at symmetrical locations, and multiple limiting blocks are slidably embedded inside limiting grooves.

[0024] The technical effect of adopting the above-mentioned further solution is that the limiting groove on the inner wall of the supporting leg provides a limiting block on the surface of the movable leg, preventing the movable leg from falling off.

[0025] Preferably, the buffer structure further includes:

[0026] Multiple dampers are fixedly installed inside multiple limiting grooves, with one end of each damper connected to the surface of the movable legs, and multiple movable legs connected to the inner wall of the limiting grooves by buffer springs.

[0027] The technical effect of adopting the above-mentioned further solution is that the damper two and the buffer spring three connected to the surface of the movable outrigger through the inner wall of the limiting groove are compressed at the moment of landing to absorb the vertical impact energy.

[0028] Preferably, the buffer structure further includes:

[0029] Multiple foot pads are fixedly installed on the bottom surface of the multiple movable legs, and multiple guide grooves are formed on the outer surface of the multiple foot pads.

[0030] The technical effect of adopting the above-mentioned further solution is that the movable support legs are made of rubber or polyurethane material, and the flow channels opened on the surface prevent mud accumulation.

[0031] Preferably, the buffer structure further includes:

[0032] Multiple sets of anti-slip patterns are provided on the bottom of multiple foot pads, wherein the multiple sets of anti-slip patterns consist of multiple raised dots.

[0033] The technical effect of adopting the above-mentioned further solution is that the anti-slip texture is set on the bottom of the foot pad, and the anti-slip texture is composed of multiple raised dots distributed in a circle, which further increases the friction with the ground.

[0034] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0035] 1. In this utility model, when the drone is flying, the buffer spring 1 and damper 1 on the surface of the mounting block are connected to the inner wall of the slot. When the support leg is subjected to an external force, the mounting block slides laterally along the surface of the positioning shaft 1 on the inner wall of the slot, providing lateral buffering and reducing damage to the frame from lateral impacts. However, when landing on uneven ground, the buffer spring 3 on the surface of the damper 2 is connected to the inner wall of the anti-slip texture, allowing the damper 2 to be adjusted at a slight tilt angle on the inner wall of the anti-slip texture with the guide groove as the fixed point. It can adapt to uneven ground without adjustment.

[0036] 2. In this utility model, the damper two and buffer spring three inside the support leg are connected to the surface of the movable leg to absorb the impact energy of the movable leg from the ground. The limiting block is slidably embedded in the limiting groove to provide limiting function. The bottom foot pad further buffers the impact energy. The anti-slip texture on the bottom increases the friction with the ground and provides anti-slip. At the same time, the guide groove opened on the surface prevents mud accumulation. Attached Figure Description

[0037] Figure 1 A top-view structural diagram of the landing support legs for an unmanned aerial vehicle is provided for this utility model.

[0038] Figure 2 This utility model provides a partial cross-sectional structural diagram of the landing support legs of an unmanned aerial vehicle;

[0039] Figure 3 This utility model proposes a landing support for an unmanned aerial vehicle. Figure 1 Enlarged structural diagram at point A in the middle;

[0040] Figure 4 This utility model presents a schematic diagram of a partially deployed landing support structure for an unmanned aerial vehicle.

[0041] Legend:

[0042] 1. Mounting base; 101. Groove; 1011. Positioning shaft one; 1012. Mounting block; 1013. Buffer spring one; 1014. Damper one; 1015. Groove; 1016. Positioning shaft two; 1017. Connecting block; 1018. Spring two; 102. Support leg; 1021. Limiting groove; 1022. Movable support leg; 1023. Limiting block; 1024. Foot pad; 1025. Anti-slip texture; 1026. Guide groove; 1027. Damper two; 1028. Buffer spring three. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0045] Example 1, such as Figure 1-4 As shown, it includes a mounting base 1, which has multiple slots 101 at the four corners of its bottom, and a positioning shaft 1011 is fixedly installed inside; multiple mounting blocks 1012 are slidably sleeved on the outer surface of the positioning shaft 1011 to form a transverse buffer unit; the bottom of the mounting block 1012 has a groove 1015, and the inner wall is fixedly installed with a positioning shaft 2 1016 for hinged parts and micro-angle adjustment.

[0046] In this embodiment, when the drone is flying, the buffer spring 1013 and damper 1014 on the surface of the mounting block 1012 are connected to the inner wall of the slot 101. When the support leg is subjected to an external force, the mounting block 1012 slides laterally along the surface of the positioning shaft 1011 on the inner wall of the slot 101, providing lateral buffering and reducing damage to the frame from lateral impacts. However, when landing on uneven ground, the buffer spring 1028 on the surface of the damper 1027 is connected to the inner wall of the anti-slip texture 1025, allowing the damper 1027 to be adjusted at a slight tilt angle on the inner wall of the anti-slip texture 1025 with the guide groove 1026 as the fixed point. It can adapt to uneven ground without adjustment.

[0047] Example 2, as Figure 1-4As shown, the protective structure also includes: multiple sets of buffer springs 1013, fixed to the inner wall of the slot 101, with one end connected to the mounting block 1012 for providing lateral buffering; the mounting block 1012 is connected to the inner wall of the slot 101 via a damper 1014 to suppress vibration; the connecting block 1017 is hinged to the positioning shaft 1016 and can rotate around the horizontal axis to achieve the tilt adjustment of the support leg; the connecting block 1017 is connected to the inner wall of the groove 1015 via a spring 1018 to provide a reset preload force; and the support leg 10... 2. Fixed to the bottom of the connecting block 1017, the movable support leg 1022 is slidably embedded inside to form a vertical buffer structure; the movable support leg 1022 is provided with a limiting block 1023, which is embedded in the limiting groove 1021; the damper 2 1027 and the buffer spring 3 1028 are set in the limiting groove 1021, which are used to suppress vibration and provide elastic recovery, respectively; the foot pad 1024 is fixed to the bottom of the movable support leg 1022, and the surface is provided with a guide groove 1026 and an anti-slip texture 1025 composed of protrusions to achieve drainage and anti-slip.

[0048] In this embodiment, the damper 1027 and the buffer spring 1028 inside the support leg 102 are connected to the surface of the movable support leg 1022 to absorb the impact energy from the ground. The limit block 1023 is slidably embedded in the limit groove 1021 to provide a limiting function. The bottom foot pad 1024 further buffers the impact energy. The anti-slip texture 1025 on the bottom increases the friction with the ground and provides anti-slip. At the same time, the guide groove 1026 on the surface prevents mud accumulation.

[0049] Working principle: During use, when the drone is in flight, the buffer spring 1013 and damper 1014 on the surface of mounting block 1012 are connected to the inner wall of slot 101. When the outrigger is subjected to external force, mounting block 1012 slides laterally along the surface of positioning shaft 1011 on the inner wall of slot 101, providing lateral buffering and reducing damage to the frame from lateral impacts. However, when landing on uneven ground, the buffer spring 1028 on the surface of damper 1027 is connected to the inner wall of anti-slip texture 1025, so that damper 1027 is fixed at guide groove 1026. The inner wall of the anti-slip texture 1025 is slightly tilted, allowing it to adapt to uneven surfaces without adjustment. In addition, the damper 1027 and the buffer spring 1028 inside the support leg 102 are connected to the surface of the movable leg 1022 to absorb the impact energy from the ground. The limiting block 1023 is slidably embedded in the limiting groove 1021 to provide limiting. The bottom foot pad 1024 further cushions the impact. The anti-slip texture 1025 on the bottom increases the friction with the ground and provides anti-slip. At the same time, the guide groove 1026 on the surface prevents mud accumulation.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A landing leg for a drone aircraft, comprising: Mounting base (1), characterized in that the landing support legs of the UAV aircraft further include: A protective structure is disposed on the surface of the mounting base (1), the protective structure comprising: Multiple slots (101) are provided at the four corners of the bottom surface of the mounting base (1), and a positioning shaft (1011) is fixedly provided inside the multiple slots (101). Multiple mounting blocks (1012) are slidably sleeved on the outer surface of multiple positioning shafts (1011); An inclined structure is disposed on the surface of the plurality of mounting blocks (1012), the inclined structure comprising: Multiple grooves (1015) are formed on the bottom surface of the multiple mounting blocks (1012), and a positioning shaft (1016) is fixedly provided on the inner wall of the multiple grooves (1015). A buffer structure is provided on the surface of the inclined structure.

2. A landing leg for a drone aircraft according to claim 1, characterized in that: The protective structure also includes: Multiple sets of buffer springs (1013) are fixedly installed on the inner wall of multiple slots (101) at symmetrical locations. One end of each buffer spring (1013) is connected to the outer surface of the mounting block (1012) at symmetrical locations. The surfaces of the mounting blocks (1012) at symmetrical locations are connected to the inner wall of the slot (101) through a damper (1014).

3. A landing leg for a drone aircraft according to claim 2, wherein: The inclined structure also includes: Multiple connecting blocks (1017) are movably fitted on the outer surface of multiple positioning shafts (1016), wherein the surfaces of the multiple connecting blocks (1017) at symmetrical locations are connected to the inner wall of the groove (1015) by springs (1018).

4. A landing leg for a drone aircraft according to claim 3, wherein: The buffer structure also includes: Multiple support legs (102) are fixedly disposed on the bottom surface of multiple connecting blocks (1017), and limit grooves (1021) are provided at symmetrical positions on the inner walls of the multiple support legs (102).

5. A landing leg for a drone aircraft according to claim 4, wherein: The buffer structure also includes: Multiple movable support legs (1022) are slidably embedded inside multiple support legs (102). Limiting blocks (1023) are provided on the surfaces of the multiple movable support legs (1022) at symmetrical locations. Multiple limiting blocks (1023) are slidably embedded inside limiting grooves (1021).

6. A landing leg for a drone aircraft according to claim 5, wherein: The buffer structure also includes: Multiple dampers 2 (1027) are fixedly disposed inside multiple limiting grooves (1021), wherein one end of multiple dampers 2 (1027) is connected to the surface of movable legs (1022), and multiple movable legs (1022) are connected to the inner wall of limiting grooves (1021) by buffer springs 3 (1028).

7. A landing leg for a drone aircraft according to claim 6, wherein: The buffer structure also includes: Multiple foot pads (1024) are fixedly disposed on the bottom surface of the multiple movable support legs (1022), and multiple guide grooves (1026) are formed on the outer surface of the multiple foot pads (1024).

8. A landing leg for a drone aircraft according to claim 7, characterized in that: The buffer structure also includes: Multiple sets of anti-slip textures (1025) are provided on the bottom of multiple foot pads (1024), wherein the multiple sets of anti-slip textures (1025) are composed of multiple protrusions.

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