CN108995794B - A UAV surface take-off and landing buoy structure - Google Patents

Abstract

The invention relates to a buoy structure for taking off and landing on the water surface of an unmanned aerial vehicle. The bearing keel is connected with the upper end face of the bearing base plate, the rear end face of the rigid deflector is connected with the front end face of the bearing base plate and the front end face of the bearing keel respectively, and the diversion tail is connected with the bearing base plate and the rear end face of the bearing keel, respectively. There are three strips in total and they are all located on the lower end face of the bearing bottom plate. On the one hand, the present invention can flexibly adjust the buoyancy structure according to the needs of use, which can effectively meet the needs of the UAV's surface take-off and landing carrying operations with different load requirements, and on the other hand, can effectively reduce the resistance of the UAV during water navigation and take-off. , so as to effectively improve the stability of UAV take-off and landing operations and water surface navigation, and effectively improve the driving efficiency and reduce operating energy consumption.

Description

A UAV surface take-off and landing buoy structure

technical field

The invention relates to an unmanned aerial vehicle fuselage, to be precise to an unmanned aerial vehicle surface take-off and landing buoy structure.

Background technique

The currently used UAV equipment with surface take-off and landing operations is often equipped with a landing gear with a buoy structure, and the UAV surface take-off and landing operation is realized through the buoyancy of the buoy. The buoys used in the buoyant equipment for lowering operations are often of traditional structures. Although they can meet the needs of providing carrying buoyancy operations for UAVs to a certain extent, the buoys have a single structure and cannot be flexibly used according to the changes in the UAV’s structure and load-bearing capacity. Therefore, the flexibility and versatility of the buoy and UAV equipment are seriously affected. On the other hand, the traditional buoy structure currently used often lacks the necessary drag reduction when the UAV performs take-off and landing operations and water surface navigation. The structure of the buoy, which causes the buoy to suffer from greater resistance during operation and use, seriously affects the stability of the UAV during take-off and landing operations and navigation on the water surface. Therefore, in view of this situation, it is urgent to develop a new buoy structure for UAVs to meet the needs of practical use.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the present invention provides a buoy structure for taking off and landing on the surface of an unmanned aerial vehicle. The invention has a simple structure, is flexible and convenient to use, and has good versatility. On the one hand, the buoyancy structure can be flexibly adjusted according to the needs of use, which can effectively It can meet the needs of UAV surface take-off and landing carrying operations with different load requirements. On the other hand, it can effectively reduce the resistance of UAVs during water navigation and take-off, thereby effectively improving the stability of UAV take-off and landing operations and surface navigation. It can effectively improve the driving efficiency and reduce the operating energy consumption.

In order to achieve the above object, the present invention is realized through the following technical solutions:

An unmanned aerial vehicle surface take-off and landing buoy structure includes a bearing bottom plate, a hard diversion head, a diversion tail, a diversion fin, a buoy and a bearing keel. , The axis of the bearing keel and the axis of the bearing bottom plate are distributed parallel to each other. The projection of the axis of the bearing keel on the upper end face of the bearing bottom plate coincides with the axis of the upper end face of the bearing bottom plate. It is a conical hollow cavity structure, its rear end face is connected with the front end face of the bearing bottom plate and the front end face of the bearing keel respectively, its lower end face is flush with the lower end face of the bearing bottom plate, and its axis intersects with the axis of the bearing keel and the bearing bottom plate. The included angle of 15°—60°, and the height of the front end face of the hard deflector above the axis of the bearing keel is 0.5 to 2.5 times the effective height of the bearing keel. The diversion tail and the bearing keel are coaxially distributed. The rear end of the diversion tail is provided with a confluence groove. The axis of the confluence groove is perpendicular to and intersects with the axis of the diversion tail. The axes of the bottom plate are distributed in parallel, two of the guide fins are located in the front half of the bearing bottom plate, and the remaining one is located in the rear half of the bearing bottom plate. It forms an included angle of 0°-90° with the lower end face of the bearing bottom plate. The deflector fins located in the rear half of the bearing bottom plate are located at the axis of the bearing bottom plate and are vertically distributed with the lower end face of the bearing bottom plate. The length of the deflector fins is the effective length of the bearing bottom plate. 1/5-3/5 of the fins, where the tail of the deflector fins located in the rear half of the bearing bottom plate exceeds the rear end surface of the bearing bottom plate by 0-50 cm.

Further, the cross-section of the bearing bottom plate is any one of a rectangle and a "V"-shaped structure.

Further, a number of positioning buckles are arranged on the outer surface of the floating block, and are connected to the bearing keel through the positioning buckles, and the floating block is embedded in the bearing keel or wrapped in any one of the bearing keel or both at the same time. location.

Further, the cross section of the front end surface of the guide fin plate is any one of a conical structure and a circular arc structure, and the front end of the guide fin plate and the outer surface of the bearing bottom plate form an included angle of 30°-90°.

Further, any one of the isosceles trapezoid and parallelogram of the guide fins.

The invention has the advantages of simple structure, flexible and convenient use, and good versatility. On the one hand, the buoyancy structure can be flexibly adjusted according to the needs of use, which can effectively meet the needs of the unmanned aerial vehicle surface take-off and landing carrying operations with different load requirements, and on the other hand, it can effectively reduce The resistance of the UAV during navigation and take-off on the water surface can effectively improve the stability of the UAV take-off and landing operation and navigation on the water surface, and effectively improve the driving efficiency and reduce the operating energy consumption.

Description of drawings

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a schematic diagram of the structure of the lateral end surface of the bearing bottom plate.

Detailed ways

In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

As shown in Figures 1 and 2, a UAV water surface take-off and landing buoy structure includes a bearing bottom plate 1, a hard diversion head 2, a diversion tail 3, a diversion fin plate 4, a floating block 5 and a bearing keel 6, The bearing keel 6 is a cylindrical hollow frame structure, which is installed on the upper end face of the bearing base plate 1. The axis of the bearing keel 6 and the axis of the bearing base plate 1 are distributed parallel to each other. There are several floating blocks 5, which are connected to the upper end face of the bearing base plate 1 through the bearing keel 6. The rigid diversion head 2 is a conical hollow cavity structure, and its rear end face is mutually connected with the front end face of the bearing base plate 1 and the front end face of the bearing keel 2 respectively. connected, its lower end face is flush with the lower end face of the bearing bottom plate 1, its axis intersects with the axis of the bearing keel 6 and the axis 1 of the bearing bottom plate and forms an included angle of 15°-60°, and the front end face of the hard diverter 2 is higher than The height of the axis of the bearing keel 6 is 0.5-2.5 times the effective height of the bearing keel 6. The rear end surface of the guide tail 3 is respectively connected with the bearing bottom plate 1 and the rear end surface of the bearing keel 6, and the guide tail 3 is coaxially distributed with the bearing keel 6, and the guide tail 3 is coaxially distributed with the bearing keel 6. The rear end face of the flow tail 3 is provided with a confluence groove 7, the axis of the confluence groove 7 is perpendicular to and intersects with the axis of the guide tail 3, and there are three guide fins 4, all of which are connected to the lower end face of the bearing base 1, and are respectively distributed parallel to the axis of the bearing base 1 , two of the guide fins 4 are located in the front half of the carrying base 1, and the remaining one is located in the rear half of the carrying base 1, and the guide fins 4 located in the front half of the carrying base 1 are symmetrical with the bearing base 1 axis The guide fins 4 located in the rear half of the load-bearing base plate 1 are located at the axis of the load-bearing base plate 1 and are vertically distributed with the lower end surface of the load-bearing base plate 1. The guide fins The length of the board 4 is 1/5-3/5 of the effective length of the carrying base 1, and the tail of the guide fins 4 located in the rear half of the carrying base 1 exceeds the rear end of the carrying base 1 by 0-50 cm.

In this embodiment, the cross-section of the carrying bottom plate 1 is any one of a rectangle and a "V"-shaped structure.

In this embodiment, a plurality of positioning buckles 8 are provided on the outer surface of the floating block 5, and are connected with the bearing keel 6 through the positioning buckles 8, and each floating block 5 is embedded in the bearing keel 6 or covered on the bearing keel 6. Any one or both of the outer and outer positions of the keel 6.

In this embodiment, the cross-section of the front end surface of the guide fin plate 4 is either a conical structure or a circular arc structure, and the front end of the guide fin plate 4 and the outer surface of the bearing bottom plate 1 are at an angle of 30°-90° angle.

In this embodiment, the guide fins 4 are any one of an isosceles trapezoid and a parallelogram.

In the specific implementation of the present invention, firstly assemble the bearing bottom plate, the hard diversion head, the diversion tail, the diversion fin, the floating block and the bearing keel according to the needs, and then assemble the assembled invention through the bearing keel and the unmanned aerial vehicle. The machine bodies are connected to each other, and the assembling and standby of the present invention can be completed.

When the unmanned aerial vehicle is taking off and landing on the water surface, on the one hand, the carrying bottom plate, the hard diversion head, the diversion tail and the carrying keel are used as the buoys to improve the effective carrying capacity, and the water body of the present invention is improved during take-off and landing and navigation operations. On the other hand, by adjusting the number of buoys and the volume of the structure, the overall buoyancy of the buoy can be effectively adjusted to meet the needs of carrying UAV equipment with different bearing states and structures, and avoid Due to excessive buoyancy, the UAV's water surface operation stability is poor and the UAV body is flooded due to insufficient buoyancy.

At the same time, when the unmanned aerial vehicle is taking off, landing and sailing on the water surface, on the one hand, the carrying bottom plate, the hard diversion head, and the diversion tail can improve the resistance of the present invention to the impact force of the water body, and at the same time, it can effectively reduce the cost The contact area between the invention and the water body, and the angle between the running direction of the invention and the direction of the frictional force of the water body are adjusted, so as to achieve the purpose of reducing the resistance between the surface and the water body. The plate can effectively exert an urgent force on the water surface during the operation of the present invention on the water surface, and eliminate the adverse effects of the surface tension of the water body on the surface of the present invention. rectification to avoid irregular impact on the present invention caused by turbulent flow, so as to further reduce the water resistance of the present invention during operation, improve operation stability and operation efficiency, and reduce the energy consumption of UAV operation.

The invention has the advantages of simple structure, flexible and convenient use, and good versatility. On the one hand, the buoyancy structure can be flexibly adjusted according to the needs of use, which can effectively meet the needs of the unmanned aerial vehicle surface take-off and landing carrying operations with different load requirements, and on the other hand, it can effectively reduce The resistance of the UAV during navigation and take-off on the water surface can effectively improve the stability of the UAV take-off and landing operation and navigation on the water surface, and effectively improve the driving efficiency and reduce the operating energy consumption.

Those skilled in the art should understand that the present invention is not limited by the above embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements can be made to the present invention without departing from the spirit and scope of the present invention. Such variations and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (4)

1. The utility model provides an unmanned aerial vehicle surface of water flotation pontoon structure that takes off and land which characterized in that: the water surface lifting buoy structure of the unmanned aerial vehicle comprises a bearing bottom plate, a hard flow guide head, a flow guide tail, flow guide fin plates, floating blocks and a bearing keel, wherein the bearing keel is of a cylindrical hollow frame structure and is arranged on the upper end surface of the bearing bottom plate, the axis of the bearing keel and the axis of the bearing bottom plate are distributed in parallel, the projection of the axis of the bearing keel on the upper end surface of the bearing bottom plate is superposed with the axis of the upper end surface of the bearing bottom plate, a plurality of floating blocks are mutually connected with the upper end surface of the bearing bottom plate through the bearing keel, the hard flow guide head is of a conical hollow cavity structure, the rear end surface of the hard flow guide head is mutually connected with the front end surface of the bearing bottom plate and the front end surface of the bearing keel respectively, the lower end surface of the hard flow guide head is distributed in parallel with the lower end surface of the bearing bottom plate, the axis of the hard flow guide head is intersected with the axis of the bearing keel and, the rear end face of the diversion tail is respectively connected with the rear end faces of the bearing bottom plate and the bearing keel, the diversion tail and the bearing keel are coaxially distributed, a confluence groove is arranged on the rear end face of the diversion tail, the axis of the confluence groove is vertical to and intersected with the axis of the diversion tail, three diversion fin plates are arranged on the lower end face of the bearing bottom plate and are respectively distributed in parallel with the axis of the bearing bottom plate, two diversion fin plates are positioned on the front half part of the bearing bottom plate, the rest diversion fin plates are positioned on the rear half part of the bearing bottom plate, the diversion fin plates positioned on the front half part of the bearing bottom plate are symmetrically distributed along the axis of the bearing bottom plate and form an included angle of 0-90 degrees with the lower end face of the bearing bottom plate, the diversion fin plates positioned on the rear half part of the bearing bottom plate are positioned on the axis of the bearing bottom plate and are vertically distributed with the lower end face of, the tail part of the flow guiding fin plate positioned at the rear half part of the bearing bottom plate exceeds the rear end surface of the bearing bottom plate by 0-50 cm, and the cross section of the bearing bottom plate is in any one of a rectangular and V-shaped structure.

2. The unmanned aerial vehicle surface take-off and landing buoy structure of claim 1, wherein: the surface of the floating block is provided with a plurality of positioning buckles and is connected with the bearing keel through the positioning buckles, and the floating block is embedded in the bearing keel or coated at any one or two positions outside the bearing keel.

3. The unmanned aerial vehicle surface take-off and landing buoy structure of claim 1, wherein: the cross section of the front end surface of the flow guide fin plate is in any one of a conical structure and an arc structure, and the front end of the flow guide fin plate forms an included angle of 30-90 degrees with the outer surface of the bearing bottom plate.

4. The unmanned aerial vehicle surface take-off and landing buoy structure of claim 1, wherein: the flow guide fin plate is any one of an isosceles trapezoid and a parallelogram.

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