Aerial survey unmanned aerial vehicle auxiliary frame

Abstract

The utility model discloses an aerial survey unmanned aerial vehicle auxiliary frame and relates to the technical field of unmanned aerial vehicles, the aerial survey unmanned aerial vehicle auxiliary frame comprises a base, a solid area and two hollow areas which are symmetrically distributed are arranged in the base, a plurality of reinforcing ribs are installed in the hollow areas, first installation holes are symmetrically formed in the solid area, stress rods are welded to the two sides of the top of the base, and the stress rods are welded to the two sides of the top of the base. Extension rods are welded to the upper ends of the stress rods, a connecting rod is welded between the two extension rods, the connecting rod is hollow, mounting heads are fixedly connected to the two ends of each extension rod, second mounting holes are formed in the two ends of each mounting head, and a plurality of evenly-distributed weight reduction grooves are formed in the stress rods. And a waist rod is fixedly connected between the two stress rods. The overall weight is reduced while the stability of the auxiliary frame is guaranteed, the auxiliary frame is lightened, and the cruising ability and the flight efficiency of the unmanned aerial vehicle are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an auxiliary frame for an aerial survey unmanned aerial vehicle. Background Art

[0002] A drone is an unmanned aircraft controlled by a radio remote control device and a self-contained program control device. It has no cockpit but is equipped with autopilots, program control devices and other equipment. Aerial survey drones are drone systems specifically used for aerial photogrammetry tasks. At present, since the drone aerial survey auxiliary frame needs to have sufficient structural strength and stability to support the camera used for aerial survey, the auxiliary frames on the market usually have a more complex frame structure design, which increases the weight of the frame and the resistance of the drone flight, resulting in a reduction in the drone's flight time, or requiring a larger battery capacity to support the flight, thereby affecting the efficiency and cost of the flight. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides an auxiliary frame for an aerial survey UAV, which solves the technical problems that the existing auxiliary frame has a complex structure, increases the weight of the frame, and affects the flight efficiency of the UAV.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: an aerial survey UAV auxiliary frame, comprising a base, a solid area and two symmetrically distributed hollow areas are arranged in the base, a plurality of reinforcing ribs are installed in the hollow area, a first mounting hole is symmetrically opened on the solid area, stress rods are welded on both sides of the top of the base, an extension rod is welded on the upper end of the stress rod, a connecting rod is welded between the two extension rods, the connecting rod is hollow, and both ends of the extension rod are fixedly connected with mounting heads, both ends of the mounting head are opened with second mounting holes, a plurality of evenly distributed weight-reducing grooves are opened on the stress rod, and a waist rod is fixedly connected between the two stress rods.

[0005] Furthermore, wind resistance strips are fixedly connected to both the front and rear sides of the stress rod, and the cross section of the wind resistance strip is triangular.

[0006] Furthermore, the waist bar includes two straight bars, the two straight bars are respectively fixedly installed on the inner sides of the two stress bars, and a C-shaped avoidance bar is integrally formed between the two straight bars.

[0007] Furthermore, a reinforcement platform is fixedly connected to the outer side of the bottom of the stress rod, and the lower end of the reinforcement platform extends to the surface of the stress rod.

[0008] Furthermore, both upper and lower ends of the stress rod are fixedly connected with reinforcement rods, the two reinforcement rods are arranged on the inner side of the stress rod, and the ends of the two reinforcement rods extend to the base surface and the connection rod surface respectively.

[0009] Furthermore, a plurality of equidistantly distributed reinforcement rings are installed inside the connecting rod, and the reinforcement rings are arranged in an elliptical structure.

[0010] Furthermore, four corners of the bottom of the base are fixedly connected with support rods.

[0011] By means of the above technical solution, the utility model provides an auxiliary frame for an aerial survey UAV, which has at least the following beneficial effects:

[0012] 1. The utility model can ensure the structural strength of the base by arranging reinforcing ribs, and can reduce the weight of the equipment by arranging weight-reducing grooves on the stress rods. The overall stability of the equipment can be ensured by cooperating with the reinforcement rods and reinforcement platforms. The stability of the equipment can be further enhanced by the waist rods and connecting rods. The optimized structural design is adopted to reduce the overall weight while ensuring the stability of the auxiliary frame, thereby making the auxiliary frame lightweight and improving the endurance and flight efficiency of the UAV.

[0013] 2. The utility model provides a wind resistance strip, and the front tip of the wind resistance strip can significantly reduce the front projection area compared to the traditional rectangle, which helps to improve air flow and reduce the generation of wake, thereby reducing the resistance of the device during flight. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the stress rod structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the base structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the connecting rod structure of the utility model;

[0019] Figure 5 This is a schematic diagram of the extension rod structure of the utility model.

[0020] In the figure: 1. base; 2. stress rod; 3. extension rod; 4. connecting rod; 5. mounting head; 6. weight reduction groove; 7. wind resistance strip; 8. reinforcement platform; 9. first mounting hole; 10. second mounting hole; 11. support rod; 12. reinforcement rod; 13. reinforcement rib; 14. reinforcement ring; 15. waist rod; 151. straight rod; 152. C-type avoidance rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] At present, since the drone aerial survey auxiliary frame needs to have sufficient structural strength and stability to support the camera used for aerial survey, the auxiliary frames on the market usually have a more complex frame structure design, which increases the weight of the frame and increases the resistance of the drone flight, resulting in a reduction in the drone's flight time, or requiring a larger battery capacity to support flight, thereby affecting the flight efficiency and cost.

[0023] To solve the above-mentioned defects of the auxiliary frame during flight, please refer to Figure 1-Figure 5The utility model provides an auxiliary frame for an aerial survey UAV, which adopts an optimized structural design. It can reduce the overall weight while ensuring the stability of the auxiliary frame, making the auxiliary frame lightweight and improving the endurance and flight efficiency of the UAV. The main body of the auxiliary frame is made of aluminum alloy, which is light in weight and can provide good structural strength and rigidity. The auxiliary frame is based on a base 1. The four corners at the bottom of the base 1 are fixedly connected with support rods 11 to facilitate the placement of the base 1. The base 1 is provided with a solid area and two symmetrically distributed hollow areas. A plurality of reinforcing ribs 13 are installed in the hollow area. The reinforcing ribs 13 are arranged in a bent structure. The hollow area can reduce the weight of the base 1, and the reinforcing ribs 13 can ensure the overall structural strength of the base 1. The solid area is symmetrically provided with first mounting holes 9. The camera for aerial survey can be fixed to the base 1 with bolts through the first mounting holes 9. The solid area of ​​the base 1 can provide a stable support force for the camera to prevent the base 1 from deformation. Stress rods 2 are welded on both sides of the top of the base 1, and an extension rod 3 is welded on the upper end of the stress rod 2. In order to effectively reduce wind resistance, a connecting rod 4 is welded between the two extension rods 3, and the connecting rod 4 can enhance the stability between the two extension rods 3. The connecting rod 4 is hollow to reduce the weight of the connecting rod 4, and both ends of the extension rod 3 are fixedly connected with mounting heads 5, and both ends of the mounting heads 5 are provided with second mounting holes 10. The entire device can be fixed to the body of the drone using bolts through the second mounting holes 10. A plurality of evenly distributed weight-reducing grooves 6 are provided on the stress rod 2, and solid areas are provided between the plurality of weight-reducing grooves 6 to ensure the stability of the stress rod 2. The provision of the weight-reducing grooves 6 can further reduce the overall weight of the device, and a waist rod 15 is fixedly connected between the two stress rods 2, and the waist rod 15 is used to connect the two stress rods 2 to reinforce the entire device, thereby making the device lightweight while ensuring the overall structural strength and stability of the device.

[0024] In order to reduce the wind resistance encountered by the equipment when following the UAV and further improve the flight efficiency of the UAV, wind resistance strips 7 are fixedly connected to the front and rear sides of the stress rod 2. The cross-section of the wind resistance strip 7 is triangular and the wind resistance strip 7 is arranged in a slender structure. Compared with the traditional rectangle, the front tip of the triangle can significantly reduce the front projection area, which helps to improve air flow and reduce the generation of wake, thereby reducing the resistance encountered by the equipment during flight.

[0025] Since a camera used for aerial survey needs to be installed at the center position on the top of the base 1, the camera may conflict with the position of the waist bar 15. In order to solve this technical problem, the waist bar 15 is provided with two straight bars 151, and the two straight bars 151 are respectively fixedly installed on the inner sides of the two stress bars 2, and a C-shaped avoidance bar 152 is integrally formed between the two straight bars 151. The setting of the C-shaped avoidance bar 152 can provide space for the camera to be installed.

[0026] In order to optimize the stability of the connection between the base 1 and the stress rod 2, a reinforcement platform 8 is fixedly connected to the outer side of the bottom of the stress rod 2, and the lower end of the reinforcement platform 8 extends to the surface of the stress rod 2. The reinforcement platform 8 can reinforce the connection between the base 1 and the stress rod 2 to improve the lightness of the structure.

[0027] Furthermore, the upper and lower ends of the stress rod 2 are fixedly connected with reinforcement rods 12, the two reinforcement rods 12 are arranged on the inner side of the stress rod 2, and the ends of the two reinforcement rods 12 extend to the surface of the base 1 and the surface of the connecting rod 4 respectively. The reinforcement rods 12 can provide auxiliary support to the base 1, the extension rod 3 and the stress rod 2, thereby further optimizing the structural strength.

[0028] Since the connecting rod 4 is hollow, although the weight of the connecting rod 4 is reduced, the strength of the connecting rod 4 is lacking. In order to ensure the structural strength of the connecting rod 4, Figure 4 As shown, a plurality of equally spaced reinforcing rings 14 are installed inside the connecting rod 4. The reinforcing rings 14 are arranged in an elliptical structure. The circumferential strength distribution of the reinforcing rings 14 is more uniform, which can effectively resist the external force of the connecting rod 4 in all directions and prevent the connecting rod 4 from deformation.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary frame for an aerial survey drone, characterized in that: The invention comprises a base (1), wherein a solid area and two symmetrically distributed hollow areas are arranged in the base (1), a plurality of reinforcing ribs (13) are installed in the hollow area, a first mounting hole (9) is symmetrically provided on the solid area, stress rods (2) are welded on both sides of the top of the base (1), an extension rod (3) is welded on the upper end of the stress rod (2), a connecting rod (4) is welded between the two extension rods (3), the connecting rod (4) is hollow, and both ends of the extension rod (3) are fixedly connected to a mounting head (5), and both ends of the mounting head (5) are provided with a second mounting hole (10), a plurality of evenly distributed weight-reducing grooves (6) are provided on the stress rod (2), and a waist rod (15) is fixedly connected between the two stress rods (2).

2. The auxiliary frame according to claim 1, characterized in that: Wind resistance strips (7) are fixedly connected to both the front and rear sides of the stress rod (2), and the cross section of the wind resistance strip (7) is triangular.

3. The auxiliary frame according to claim 1, characterized in that: The waist bar (15) comprises two straight bars (151), the two straight bars (151) are respectively fixedly mounted on the inner sides of the two stress bars (2), and a C-shaped avoidance bar (152) is integrally formed between the two straight bars (151).

4. The auxiliary frame according to claim 1, characterized in that: A reinforcement platform (8) is fixedly connected to the outer side of the bottom of the stress rod (2), and the lower end of the reinforcement platform (8) extends to the surface of the stress rod (2).

5. The auxiliary frame according to claim 1, characterized in that: The upper and lower ends of the stress rod (2) are fixedly connected to reinforcement rods (12), the two reinforcement rods (12) are arranged on the inner side of the stress rod (2), and the ends of the two reinforcement rods (12) extend to the surface of the base (1) and the surface of the connecting rod (4) respectively.

6. The auxiliary frame according to claim 1, characterized in that: A plurality of equally spaced reinforcement rings (14) are installed inside the connecting rod (4), and the reinforcement rings (14) are arranged in an elliptical structure.

7. The auxiliary frame according to claim 1, characterized in that: The four corners of the bottom of the base (1) are all fixedly connected with support rods (11).

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