Water falling protection floating structure and unmanned aerial vehicle

Abstract

The utility model discloses a water falling protection floating structure and an unmanned aerial vehicle. The water falling protection floating structure comprises a base, two connecting parts and two floating bodies. The base is used for being installed at the bottom of a fuselage of the unmanned aerial vehicle and provided with an avoiding channel, and the avoiding channel penetrates through the base and is used for allowing an optical axis of a camera at the bottom of the fuselage to pass. The two connecting parts are connected to the base and located at the two back-to-back ends of the base and located on the side, away from the machine body, of the base, and each connecting part extends in the direction away from the other connecting part. The two floating bodies are installed on the two connecting parts respectively and located at the ends, away from the other connecting part, of the connected connecting parts. According to the scheme, the unmanned aerial vehicle can float on the water surface when falling into water, interference to the camera at the bottom of the unmanned aerial vehicle is avoided, normal camera shooting of the camera is guaranteed, the wing folding function is not affected, the structure is simple, and the cost is low.

Description

Technical Field

[0001] This utility model relates to the field of anti-water-falling technology for unmanned aerial vehicles (UAVs), specifically to a floating structure for water-falling protection and an UAV. Background Technology

[0002] With the development of drone technology, drones have become an indispensable tool in waterway maintenance and surveying, and therefore, the issue of drone protection against water crashes must be considered.

[0003] Publication number CN216468442U discloses a quadcopter drone float mount, which connects four links to the bottom of the brushless motor of the wing, with two links on the same side forming a group, and two floats are arranged in parallel at the bottom of the two groups of links, so that the drone can float on the water surface when it falls into the water without affecting the normal flight of the drone.

[0004] The floating structure in this patent uses a float to be mounted on the wing via a connecting rod to avoid obstructing the camera on the bottom of the drone. However, for drones with foldable wings, since the wings are usually folded around the upper periphery of the fuselage, folding the wings can easily cause the connecting rod and float of the floating assembly to interfere with the fuselage. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a floating structure and drone for water protection. It solves the technical problem in the prior art that in order to avoid obstructing the camera on the bottom of the drone, the float is installed on the wing by a connecting rod. However, for drones with foldable wings, since the wings are usually folded on the upper periphery of the fuselage, when the wings are folded, the connecting rod and float of the floating component are prone to interference with the fuselage.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0007] Firstly, this utility model provides a floating structure for protection against water damage, comprising:

[0008] The base is used to install on the bottom of the drone's fuselage and is provided with a clearance channel that runs through the base to allow the optical axis of the camera on the bottom of the fuselage to pass through.

[0009] Two connecting portions, each connected to the base, are located at opposite ends of the base and on the side of the base away from the body; each connecting portion extends away from the other connecting portion.

[0010] Two floats are respectively installed on the two connecting parts and are located at the end of the connected connecting part away from the other connecting part.

[0011] In some embodiments, a snap-fit ​​channel is provided at one end of the connecting portion away from the other connecting portion, and the extending direction of the snap-fit ​​channel intersects the arrangement direction of the two connecting portions;

[0012] The float is secured within the locking channel.

[0013] In some embodiments, the buoy extends in the same direction as the snap-fit ​​channel, and both ends of the buoy in the extension direction are tapered.

[0014] In some embodiments, the connecting portion includes a mounting bracket and a snap-fit ​​ring. The mounting bracket is connected to the base and extends in a direction away from another mounting bracket, and is provided with a weight-reducing hole. The snap-fit ​​ring is connected to the end of the mounting bracket away from the base.

[0015] The snap-fit ​​channel is formed in the snap-fit ​​ring.

[0016] In some embodiments, the snap ring has a notch communicating with the outside and the snap channel, and fastening seats are provided on both sides of the notch. The two fastening seats are located outside the snap channel and have fastening holes along the direction close to the other fastening seat.

[0017] The connecting part also includes a fastening bolt and a fastening nut. The fastening bolt passes through the two fastening holes, and the fastening nut is screwed onto the end of the fastening bolt that extends out of the fastening hole.

[0018] In some embodiments, the notch connects to the weight reduction hole, and the two fasteners are located within the weight reduction hole.

[0019] In some embodiments, the connecting portion includes a plurality of mounting brackets and a plurality of snap-fit ​​rings, the plurality of mounting brackets being spaced apart along the extension direction of the snap-fit ​​channel, the plurality of snap-fit ​​rings corresponding one-to-one with the plurality of mounting brackets, and the plurality of snap-fit ​​channels on the same side being sequentially connected.

[0020] The float is inserted through multiple snap-fit ​​channels on the same side.

[0021] In some embodiments, a support rod is connected between two adjacent mounting brackets, and the support rod is hollow.

[0022] In some embodiments, the connecting portion is detachably connected to the base.

[0023] In some embodiments, the connecting portion has a built-in elastic support unit.

[0024] In some embodiments, the base is engaged in a slot at the bottom of the device body.

[0025] In some embodiments, the water-resistant floating structure further includes an elastic band, and the base is secured to the bottom of the fuselage via the elastic band.

[0026] In some embodiments, the connecting portion is also inclined in a direction away from the fuselage.

[0027] Secondly, this utility model also provides a drone, which includes the water-resistant floating structure described in any of the above claims.

[0028] Compared with existing technologies, the water-resistant floating structure provided by this utility model installs the base on the bottom of the drone's fuselage and provides a clearance channel on the base to avoid obstructing the camera on the bottom of the fuselage, allowing the camera to capture images normally through the clearance channel. Furthermore, the float is installed at the end of the corresponding connecting part away from the other connecting part, satisfying the drone's requirement for stable floating on the water surface while effectively preventing the float from obstructing the camera. Simultaneously, since the floating structure is located at the bottom of the fuselage, it does not move with the folding wings and does not affect the normal folding of the wings. Thus, this solution enables the drone to float on the water surface when it falls into the water, while avoiding interference with the camera on the bottom of the drone, ensuring normal camera recording, and not affecting the wing folding function. Moreover, the structure is simple and the cost is low. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the water-resistant floating structure provided in an embodiment of this utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of a floating structure for protection against falling into the water, without a floating body shown.

[0031] Figure 3 yes Figure 2 Schematic diagram of the middle connecting part;

[0032] Figure 4 yes Figure 3 A schematic diagram of the mounting bracket and snap-fit ​​ring;

[0033] Figure 5 yes Figure 1 A schematic diagram of the central base;

[0034] Figure 6 This is a schematic diagram of the base in another embodiment.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Base; 1a. Clearance channel; 1b. Connecting hole; 1c. Mounting hole; 11. Slider; 2. Connecting part; 2a. Snap-fit ​​channel; 21. Mounting bracket; 21a. Weight reduction hole; 21b. Mounting through hole; 21c. Mating hole; 22. Snap-fit ​​ring; 22a. Notch; 221. Fastening seat; 221a. Fastening hole; 23. Support rod; 23a. Mounting screw hole; 3. Float. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] To address the technical problem in existing technologies where a float is mounted on the wing via a connecting rod to avoid obstructing the camera on the bottom of the drone, but for drones with foldable wings, the wing is typically folded to the upper periphery of the fuselage, which can easily cause interference between the connecting rod and the float of the floating component and the fuselage when the wing is folded, this invention provides a water-resistant floating structure. This structure allows the drone to float on the water surface when it falls in, while avoiding interference with the camera on the bottom of the drone, without affecting the wing folding function, and is simple in structure and low in cost.

[0039] It should be noted that the water-resistant floating structure described in this utility model is used in, but not limited to, drones. For ease of explanation, this utility model only uses the application of the water-resistant floating structure to drones as an example. The principle of the water-resistant floating structure applied to other types of equipment is essentially the same as that applied to drones, and will not be elaborated here.

[0040] Please see Figures 1 to 3 , Figures 1 to 3 This is a schematic diagram of a water-resistant floating structure according to an embodiment of the present invention. The water-resistant floating structure includes a base 1, two connecting parts 2, and two floats 3. The base 1 is used to install on the bottom of the drone's fuselage and is provided with a clearance channel 1a, which passes through the base 1 to allow the optical axis of the camera on the bottom of the fuselage to pass through. The two connecting parts 2 are connected to the base 1 and are located at opposite ends of the base 1, on the side of the base 1 away from the fuselage. Each connecting part 2 extends in a direction away from the other connecting part 2. The two floats 3 are respectively installed on the two connecting parts 2 and are located at the end of the connected connecting part 2 away from the other connecting part 2.

[0041] In the water-resistant floating structure provided by this utility model, the base 1 is installed at the bottom of the drone body, and an avoidance channel 1a is provided on the base 1 to avoid the camera at the bottom of the drone body, allowing the camera to take pictures normally through the avoidance channel 1a. The float 3 is installed at the end of the corresponding connecting part 2 away from the other connecting part 2, which not only meets the functional requirement of the drone floating stably on the water surface, but also effectively avoids the float 3 obstructing the camera. At the same time, since the floating structure is located at the bottom of the drone body, it does not move with the folding wings and does not affect the normal folding of the wings. Thus, while enabling the drone to float on the water surface when it falls into the water, it avoids interference with the camera at the bottom of the drone, ensuring normal camera recording, and does not affect the wing folding function. Furthermore, the structure is simple and the cost is low.

[0042] In one embodiment, the end of the connecting part 2 away from the other connecting part 2 is provided with a snap-fit ​​channel 2a, the extension direction of the snap-fit ​​channel 2a intersecting the arrangement direction of the two connecting parts 2; the float 3 is snapped in the snap-fit ​​channel 2a.

[0043] In this embodiment, the float 3 is simply snapped into the snap-fit ​​channel 2a, thus completing the installation of the float 3 on the connecting part 2. The operation is simple and convenient. It should be noted that the float 3 can be in the form of foam, a float tube, or an airbag. In this solution, the float 3 is set in the form of a float tube, and the extension direction of the float tube is set to be the same as the extension direction of the snap-fit ​​channel 2a.

[0044] Specifically, both ends of the pontoon are designed to be conical, which not only gives the structure a certain water-breaking ability when it is launched into the water, but also further avoids the pontoon obstructing the camera's view. Furthermore, in one embodiment, the pontoon is made of closed-cell cross-linked polyethylene (IXPE) foam with a density of 0.03 g / cm³, and adopts a split layout, specifically including: a single block volume of 80 cm³ in the front region, accounting for 40% of the total buoyancy; and a single block volume of 120 cm³ in the rear region, used to optimize pitch stability.

[0045] It should be noted that the connecting part 2 can be configured as a connecting arm, a connecting plate, a connecting frame, or other forms.

[0046] In one embodiment, please refer to Figure 4 The connecting part 2 includes a mounting bracket 21 and a snap ring 22. The mounting bracket 21 is connected to the base 1 and extends in a direction away from the other mounting bracket 21, and is provided with a weight reduction hole 21a. The snap ring 22 is connected to the end of the mounting bracket 21 away from the base 1. The snap channel 2a is formed in the snap ring 22.

[0047] In this embodiment, the base 1, the mounting bracket 21 and the snap ring 22 are connected in sequence, and the float 3 is snapped into the snap channel 2a of the snap ring 22. At the same time, a weight reduction hole 21a is formed in the mounting bracket 21, so that the connecting part 2 is lightweight, the overall structural weight is reduced, and the load on the UAV is reduced.

[0048] Specifically, in this design, two weight-reducing holes 21a are provided. Furthermore, in one embodiment, the base 1 is a flat substrate made of carbon fiber reinforced polymer (CFRP) with anodized surface. The substrate edges have a chamfered structure (R angle ≥ 1.5mm) and are etched with anti-slip mesh (5mm × 5mm spacing). In addition, multiple clearance channels 1a are provided on the base 1 to improve its versatility; the multiple clearance channels 1a have different sizes.

[0049] In some embodiments, the snap ring 22 has a notch 22a that connects the outside to the snap channel 2a, and fastening seats 221 are provided on both sides of the notch 22a. The two fastening seats 221 are located outside the snap channel 2a, and fastening holes 221a are provided in the direction close to the other fastening seat 221. The connecting part 2 also includes a fastening bolt and a fastening nut. The fastening bolt passes through the two fastening holes 221a, and the fastening nut is screwed onto the end of the fastening bolt that extends out of the fastening hole 221a.

[0050] In this embodiment, after the float 3 is sent into the snap-fit ​​channel 2a, the fastening bolts and fastening nuts are tightened to reduce the inner diameter of the snap ring, thereby making the snap ring hold the float 3 tightly and improving the connection stability between the connecting part 2 and the float 3.

[0051] In one embodiment, the notch 22a connects to the weight reduction hole 21a, and two fasteners 221 are located inside the weight reduction hole 21a.

[0052] In this embodiment, two fastening seats 221 are placed in the weight reduction hole 21a, so that the notch 22a of the retaining ring can be protected by the mounting bracket 21, avoiding damage to the notch 22a of the retaining ring, and also preventing the fastening bolts and fastening nuts from being loosened by external foreign objects, thereby further improving the stability of the float 3 installation.

[0053] In one embodiment, the connecting part 2 includes a plurality of mounting brackets 21 and a plurality of snap-fit ​​rings 22. The plurality of mounting brackets 21 are spaced apart along the extension direction of the snap-fit ​​channel 2a. The plurality of snap-fit ​​rings 22 correspond one-to-one with the plurality of mounting brackets 21. The plurality of snap-fit ​​channels 2a on the same side are connected in sequence. The float 3 passes through the plurality of snap-fit ​​channels 2a on the same side.

[0054] In this embodiment, multiple sets of mounting brackets 21 and snap-fit ​​rings 22 are arranged at intervals on the same side of the base 1, thereby minimizing the size of the mounting brackets 21 and snap-fit ​​rings 22, thus reducing the weight of the connecting part 2, and ensuring the installation stability of the float through multiple snap-fit ​​channels 2a. Specifically, in this solution, each connecting part 2 includes two sets of mounting brackets 21 and snap-fit ​​rings 22.

[0055] In some embodiments, a support rod 23 is connected between two adjacent mounting brackets 21, and the support rod 23 is hollow.

[0056] In this embodiment, two adjacent mounting brackets 21 are supported by a support rod 23, improving the overall strength of the connecting part 2 on the same side. The support rod 23 is hollow to reduce its weight. Specifically, in this design, the support rod 23 is bolted to the two adjacent mounting brackets 21. The mounting bracket 21 has a mounting through hole 21b corresponding to the support rod 23, and the inner wall of the support rod 23 has a mounting screw hole 23a corresponding to the mounting through hole 21b. In one embodiment, the overall structural assembly mass is ≤350g, and the buoyancy ratio is ≥7:1.

[0057] In some embodiments, the connecting part 2 is detachably connected to the base 1.

[0058] In this embodiment, the connecting part 2 is detachably connected to the base 1, allowing for replacement if the connecting part 2 is damaged. It should be noted that the detachable connection between the connecting part 2 and the base 1 can be achieved through snaps, elastic bands, or other means. Specifically, in this design, a connecting hole 1b is provided on the base 1, and a corresponding mating hole 21c is provided on the connecting part 2. Thus, a detachable connection between the base 1 and the connecting part 2 is achieved through connecting bolts and connecting nuts, resulting in a simple and reliable structure.

[0059] In some embodiments, the connecting part 2 has a built-in elastic support unit.

[0060] In this embodiment, an elastic support unit is provided inside the connecting part 2 to provide elastic cushioning when the drone falls into the water, thus preventing damage. It should be noted that the elastic support unit can be a built-in silicone pad, a spring steel sheet, or an elastic steel wire. Specifically, in one embodiment, the connecting part 2 has a built-in silicone pad or a spring steel sheet, capable of absorbing impact loads with a peak value ≤50N. Furthermore, in one embodiment, the exterior of the connecting part 2 is made of SUS316L stainless steel or PA66-GF30 nylon.

[0061] It should be noted that the base 1 can be installed on the bottom of the drone by bolts, clips or other structures.

[0062] In one embodiment, the water-resistant floating structure also includes an elastic band, with the base 1 secured to the bottom of the fuselage via the elastic band.

[0063] In this embodiment, the base 1 is bound to the machine body using an elastic band, eliminating the need for screw holes in the machine body, thus ensuring the integrity of the machine body and making operation simple and convenient. For details, please refer to... Figure 5 and Figure 6 In some embodiments, the base 1 has two mounting holes 1c for the elastic band to pass through, located at opposite ends of the base 1. In one embodiment, the elastic band is made of a transparent material.

[0064] In one embodiment, the base 1 is provided with a slider 11, which can slide and engage in a slot on the bottom of some models. During installation, the slider 11 of the base 1 is aligned with the slot on the bottom of the machine body and pushed into the slot along the guide rail until a "click" is heard, indicating that the slider 11 has slid into place. Then, the elastic band can be tied. An anti-slip mesh surface is provided on the side of the base 1 near the machine body.

[0065] In some embodiments, the connecting portion 2 is also inclined in a direction away from the fuselage.

[0066] In this embodiment, the connecting part 2 is tilted upwards to increase the distance between the float 3 and the wing, further preventing the float 3 from interfering with the wing. It also prevents the float 3 from obstructing the camera's field of view.

[0067] Furthermore, this utility model also provides a drone, which includes the water-protection floating structure described in any of the above-mentioned embodiments. It should be noted that the detailed structure of the water-protection floating structure of the drone can be referred to the embodiments of the water-protection floating structure described above, and will not be repeated here. Since the drone of this utility model uses the above-mentioned water-protection floating structure, the embodiments of the drone of this utility model include all the technical solutions of all the embodiments of the above-mentioned water-protection floating structure, and the achieved technical effects are also completely the same, and will not be repeated here.

[0068] To better understand this utility model, the following is combined with... Figures 1 to 6 The technical solution of this utility model is described in detail below:

[0069] In this design, the base 1 and mounting bracket 21 are fixed together with connecting bolts and nuts. The base 1 is then installed on the bottom of the fuselage using elastic bands. Because the base 1 has a clearance channel 1a to avoid the camera at the bottom of the fuselage, the camera can capture images normally through the clearance channel 1a. The float 3 is installed in the locking channel 2a of the locking ring 22 and fixed with bolts and nuts. This satisfies the requirement for the drone to float stably on the water surface while effectively preventing the float 3 from obstructing the camera. Furthermore, since the floating structure is located at the bottom of the fuselage, it does not move with the folding wings and does not affect the normal folding of the wings.

[0070] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A floating structure for protection against water spills, characterized in that, include: The base is used to install on the bottom of the drone's fuselage and is provided with a clearance channel that runs through the base to allow the optical axis of the camera on the bottom of the fuselage to pass through. Two connecting portions, each connected to the base, are located at opposite ends of the base and on the side of the base away from the body; each connecting portion extends away from the other connecting portion. Two floats are respectively installed on the two connecting parts and are located at the end of the connected connecting part away from the other connecting part.

2. The water-resistant floating structure according to claim 1, characterized in that, The end of the connecting part away from the other connecting part is provided with a snap-fit ​​channel, and the extending direction of the snap-fit ​​channel intersects the arrangement direction of the two connecting parts; The float is secured within the locking channel.

3. The floating structure for water protection according to claim 2, characterized in that, The connecting part includes a mounting bracket and a snap-fit ​​ring. The mounting bracket is connected to the base and extends in a direction away from the other mounting bracket, and is provided with a weight reduction hole. The snap-fit ​​ring is connected to the end of the mounting bracket away from the base. The snap-fit ​​channel is formed in the snap-fit ​​ring.

4. The water-resistant floating structure according to claim 3, characterized in that, The snap ring has a notch that connects to the outside and the snap channel, and fastening seats are provided on both sides of the notch. The two fastening seats are located outside the snap channel and have fastening holes along the direction close to the other fastening seat. The connecting part also includes a fastening bolt and a fastening nut. The fastening bolt passes through the two fastening holes, and the fastening nut is screwed onto the end of the fastening bolt that extends out of the fastening hole.

5. The floating structure for water protection according to claim 4, characterized in that, The notch connects to the weight reduction hole, and the two fasteners are located inside the weight reduction hole.

6. The floating structure for water protection according to claim 3, characterized in that, The connecting part includes a plurality of mounting brackets and a plurality of snap-fit ​​rings. The plurality of mounting brackets are spaced apart along the extension direction of the snap-fit ​​channel. The plurality of snap-fit ​​rings correspond one-to-one with the plurality of mounting brackets. The plurality of snap-fit ​​channels on the same side are connected sequentially. The float is inserted through multiple snap-fit ​​channels on the same side.

7. The floating structure for water protection according to claim 6, characterized in that, A support rod is connected between two adjacent mounting brackets, and the support rod is hollow.

8. The floating structure for water protection according to claim 1, characterized in that, The connecting part is detachably connected to the base.

9. The floating structure for water protection according to claim 1, characterized in that, The water-resistant floating structure also includes an elastic band, and the base is tied to the bottom of the fuselage via the elastic band.

10. A drone, characterized in that, Including the water-resistant floating structure as described in any one of claims 1-9.

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