Hexarotor unmanned aerial vehicle frame and hexarotor unmanned aerial vehicle

Abstract

This utility model provides a six-rotor unmanned aerial vehicle (UAV) frame and a six-rotor UAV. The frame includes a fuselage and six arms. The fuselage is hexagonal, and the arms are used to mount rotors and are fixed to the six corners of the fuselage. The fuselage is composed of a first triangular component and a second triangular component stacked vertically. Both the first and second triangular components are made of carbon fiber and have mounting sleeves at each corner. The centerlines of the mounting sleeves are coplanar, and the arms are inserted into the mounting sleeves. By using two triangular components stacked vertically (i.e., splicing in the height direction), modular assembly is possible, facilitating frame assembly. Furthermore, the size of the triangular components can be adjusted as needed to produce UAV frames of different sizes without the need to develop molds of different sizes, significantly reducing production costs.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle technology, and more specifically, to a six-rotor unmanned aerial vehicle frame and a six-rotor unmanned aerial vehicle. Background Technology

[0002] A drone's structure generally consists of a mechanical system, a power system, a flight control system, a remote control and receiving system, a communication and navigation system, and a mission payload. The frame is the main structural element of the drone, supporting the other components. To ensure structural strength, many drone frames are made of metal or rigid plastic. However, some drones, especially small aircraft, use pure carbon fiber fuselages, which are manufactured using molding processes and are therefore more expensive. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight, high-strength, easy-to-assemble, and low-cost hexacopter unmanned aerial vehicle frame and hexacopter unmanned aerial vehicle.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] In a first aspect, this utility model provides a six-rotor unmanned aerial vehicle frame, including a fuselage and six arms. The fuselage is hexagonal, and the arms are used to mount rotors and are fixed to the six corners of the fuselage one by one. The fuselage is composed of a first triangular component and a second triangular component stacked on top of each other. The first and second triangular components are both made of carbon fiber material and have mounting sleeves at each corner. The center lines of the mounting sleeves are coplanar, and the arms are inserted into the mounting sleeves.

[0006] In one embodiment, the first triangular assembly includes three first arm fixing modules and three first connecting pipes, the three first connecting pipes forming a first triangle, the first arm fixing modules being connected to two first connecting pipes at the corners of the first triangle, and the mounting sleeve including a first mounting sleeve disposed on the first arm fixing module.

[0007] In one embodiment, the first arm fixing module includes two sets of first connecting pipe fixing sleeves. Each set of first connecting pipe fixing sleeves includes a pair of pipe clamps for inserting and fixing the first connecting pipe. The pair of pipe clamps are concentrically arranged, and the first included angle formed by the center lines of the two pairs of pipe clamps is matched with the angle of the corner of the first triangle. The first mounting sleeve is located between the two sets of first connecting pipe fixing sleeves, and its center line coincides with the angle bisector of the first included angle.

[0008] In one embodiment, the pair of pipe clamps includes a first pipe clamp and a second pipe clamp arranged opposite to each other along the axis of the first connecting pipe. The first pipe clamp includes a pair of half rings, each half ring having connecting lugs at both ends connected by threaded connectors. The second pipe clamp includes a clamp plate, one side of which forms a break, and a pair of connecting lugs are connected to both ends of the break.

[0009] In one embodiment, a reinforcing clamp is provided on the side of the first mounting sleeve away from the arm where the rotor is mounted, and the reinforcing clamp is concentrically arranged with the first mounting sleeve.

[0010] In one embodiment, the first triangular assembly further includes a first upper mounting plate and a first lower mounting plate, which are arranged parallel to each other vertically. The first connecting pipe fixing sleeve, the first mounting sleeve, and the reinforcing pipe clamp are all fixed between the upper mounting plate and the lower mounting plate.

[0011] In one embodiment, the second triangular assembly includes three second arm fixing modules and three second connecting pipes, the three second connecting pipes forming a second triangle, the second arm fixing modules being connected to two second connecting pipes at the corners of the second triangle, and the mounting sleeve including a second mounting sleeve disposed on the second arm fixing module.

[0012] In one embodiment, the second arm fixing module includes a second upper mounting plate, a second lower mounting plate, a partition, and two sets of second connecting pipe fixing sleeves. The second upper mounting plate, the partition, and the second lower mounting plate are spaced apart to form an upper mounting space and a lower mounting space. The second mounting sleeve is disposed in the upper mounting space and its center line coincides with the axis of symmetry of the upper mounting space. The two sets of second connecting pipe fixing sleeves are disposed in the lower mounting space with their center lines forming a second included angle. The second included angle is set in accordance with the angle of the corner of the second triangle.

[0013] In one embodiment, each set of second connecting pipe fixing sleeves includes a pair of pipe clamps for inserting and fixing the second connecting pipe. The pair of pipe clamps are concentrically arranged along the axis of the connecting pipe, and the angle bisector of the second included angle formed by the center lines of the two pairs of pipe clamps is parallel to the center line of the second mounting sleeve.

[0014] In one embodiment, the arm is configured as an arm extension at the end away from the mounting sleeve, and the arm extension extends above another triangular assembly and is perpendicular to the connecting pipe of the triangular assembly. The fuselage also includes an orthogonal connection module, which includes an intermediate mounting plate and arm fixing rings and connecting pipe fixing rings respectively disposed on the upper and lower sides of the intermediate mounting plate. The arm fixing rings and connecting pipe fixing rings are used to fix the arm extension and the connecting pipe respectively, and their central axes are perpendicular to each other.

[0015] In one embodiment, the fuselage further includes a cross-connection module, which includes an intermediate mounting plate and a first connecting pipe fixing ring and a second connecting pipe fixing ring disposed on the upper and lower sides of the intermediate mounting plate, respectively. The first connecting pipe fixing ring and the second connecting pipe fixing ring are used to fix the first connecting pipe and the second connecting pipe, and the included angle between the central axes of the first connecting pipe fixing ring and the second connecting pipe fixing ring is matched with the included angle between the first connecting pipe and the second connecting pipe.

[0016] As a second aspect, this utility model also provides a six-rotor unmanned aerial vehicle, which includes the aforementioned six-rotor unmanned aerial vehicle frame, six rotors and a flight control module. The six rotors are installed one-to-one on each of the arms, and the flight control module is installed on the fuselage and used to control the working state of the rotors.

[0017] The beneficial effects of the technical solution provided by this utility model are as follows: The frame of this utility model is formed by stacking two triangular components on top of each other (i.e., splicing them together in the height direction), which allows for modular assembly and facilitates the assembly of the frame. In addition, the size of the triangular components can be adjusted as needed to realize the production of unmanned aerial vehicle frames of different sizes without the need to develop molds of different sizes, which greatly reduces production costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of a six-rotor unmanned aerial vehicle provided in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a first triangular component provided in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the first arm fixing module provided in one embodiment of the present invention;

[0022] Figure 4 for Figure 3A structural schematic diagram of the first arm fixing module from another perspective;

[0023] Figure 5 This is a schematic diagram of the structure of the second triangular component provided in one embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the second arm fixing module provided in one embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of an orthogonal connection module provided in one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the cross-connection module provided in one embodiment of the present invention. Detailed Implementation

[0027] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0028] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0029] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "connection" can refer to a direct connection or an indirect connection via intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description.

[0030] It should be noted that the concepts of "first" and "second" mentioned in this utility model are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to necessarily be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0031] See Figures 1 to 8This utility model provides a six-rotor unmanned aerial vehicle frame 10 (hereinafter referred to as "frame 10"), which is suitable for forming a six-rotor unmanned aerial vehicle together with rotors and flight control modules. The six-rotor unmanned aerial vehicle frame 10 of this utility model is made of carbon fiber material, which achieves lightweighting while meeting the structural strength requirements.

[0032] The frame 10 includes a fuselage and six arms 13. The fuselage is hexagonal, and the arms 13 are used to mount rotors and are fixed to the six corners of the fuselage. The fuselage is composed of a first triangular component 11 and a second triangular component 12 stacked on top of each other. The first triangular component 11 and the second triangular component 12 are both made of carbon fiber material and have mounting sleeves at each corner. The center lines of the mounting sleeves are coplanar, and the arms 13 are inserted into the mounting sleeves.

[0033] It should be noted that both the first triangular component 11 and the second triangular component 12 are generally triangular, but not strictly triangular in the strict sense, and their corners are not pointed. Additionally, it is understood that the frame 10 also includes landing gear 14, which is connected to the lower part of the fuselage and is also made of carbon fiber material to reduce the weight of the frame 10 while ensuring structural strength.

[0034] In one embodiment, the first triangular assembly 11 includes three first arm fixing modules 111 and three first connecting pipes 112, which form a first triangle. The first arm fixing modules 111 are connected to two of the first connecting pipes 112 at the corners of the first triangle. The mounting sleeve includes a first mounting sleeve 1113, which is mounted on the first arm fixing modules 111. The frame 10 has a hollow structure in the middle, providing ample space for mounting functional components such as power modules and carriers, meeting the needs of unmanned aerial vehicles.

[0035] By using two triangular components stacked one on top of the other (i.e., spliced ​​together in the height direction), modular production and assembly are possible, which facilitates the assembly of the frame 10. In addition, the size of the triangular components can be adjusted as needed, thereby enabling the production of unmanned aerial vehicle frames 10 of different sizes without the need to develop molds of different sizes, which greatly reduces production costs.

[0036] In one embodiment, the first arm fixing module 111 includes two sets of first connecting pipe fixing sleeves 1114. Each set of first connecting pipe fixing sleeves 1114 includes a pair of pipe clamps for inserting and fixing the first connecting pipe 112. The pair of pipe clamps are concentrically arranged, and the first included angle formed by the center lines of the two pairs of pipe clamps is matched with the angle of the corner of the first triangle. The first mounting sleeve 1113 is located between the two sets of first connecting pipe fixing sleeves 1114, and its center line coincides with the angle bisector of the first included angle.

[0037] In one embodiment, the pair of pipe clamps includes a first pipe clamp 1115 and a second pipe clamp 1116 arranged opposite to each other along the axis of the first connecting pipe 112. The first pipe clamp 1115 includes a pair of half rings, and each half ring has connecting lugs (not shown, the same below) connected to each other by threaded connectors at both ends. The second pipe clamp 1116 includes a clamp plate (not shown, the same below), one side of which forms a break (not shown, the same below), and a pair of connecting lugs are connected to both ends of the break.

[0038] In this embodiment, the break (not shown) is located on the side of the hoop away from the first mounting sleeve 1113 to facilitate the screwing of the threaded connector.

[0039] In the above embodiments, the connecting pipe and the first arm fixing module 111 are fixed by the pipe clamp and clamp plate structure, which facilitates the assembly and disassembly of the connecting pipe and the first arm fixing module 111.

[0040] In other embodiments, the clamp can be replaced with a sleeve to fix the connecting pipe. Optionally, when a more secure connection is required, glue can be filled between the connecting pipe and the sleeve.

[0041] Please combine Figure 4 In one embodiment, a reinforcing clamp 1117 is provided on the side of the first mounting sleeve 1113 away from the arm 13 for mounting the rotor, and the reinforcing clamp 1117 is concentrically arranged with the first mounting sleeve 1113.

[0042] In one embodiment, the first triangular assembly 11 further includes a first upper mounting plate 1111 and a first lower mounting plate 1112, which are arranged parallel to each other vertically. The first connecting pipe fixing sleeve 1114, the first mounting sleeve 1113 and the reinforcing pipe clamp 1117 are all fixed between the first upper mounting plate 1111 and the first lower mounting plate 1112.

[0043] In this embodiment, the first upper mounting plate and the first lower mounting plate can position the relative positions of the first pipe clamp 1115 and the second pipe clamp 1116, and can also strengthen the pipe clamps.

[0044] In one embodiment, the second triangular assembly 12 includes three second arm fixing modules 121 and three second connecting pipes 122, the three second connecting pipes 122 forming a second triangle, the second arm fixing modules 121 being connected to two second connecting pipes 122 at the corners of the second triangle, and the mounting sleeve including a second mounting sleeve 1214, the second mounting sleeve 1214 being disposed on the second arm fixing modules 121.

[0045] In one embodiment, the second arm fixing module 121 includes a second upper mounting plate 1211, a second lower mounting plate 1213, a partition 1212, and two sets of second connecting pipe fixing sleeves 1215. The second upper mounting plate, the partition, and the second lower mounting plate are spaced apart to form an upper mounting space and a lower mounting space. The second mounting sleeve is disposed in the upper mounting space and its center line coincides with the axis of symmetry of the upper mounting space. The two sets of second connecting pipe fixing sleeves are disposed in the lower mounting space with their center lines forming a second included angle. The second included angle is set in accordance with the angle of the corner of the second triangle.

[0046] In one embodiment, each set of second connecting pipe fixing sleeves includes a pair of pipe clamps for inserting and fixing the second connecting pipe 122. The pair of pipe clamps are concentrically arranged along the axis of the connecting pipe, and the bisector of the second included angle formed by the center lines of the two pairs of pipe clamps is parallel to the center line of the second mounting sleeve.

[0047] Similarly, the second upper mounting plate, the second lower mounting plate, and the partition plate can position the relative positions of the first and second pipe clamps in the second connecting pipe fixing sleeve, and can also strengthen the pipe clamps.

[0048] In one embodiment, the arm 13 has an extension portion extending through the mounting sleeve at the end away from the rotor mounting end. This extension portion extends above another triangular assembly and is perpendicular to the connecting pipe of that triangular assembly. The fuselage also includes an orthogonal connection module 15, which includes a central mounting plate 150 and arm fixing rings 151 and connecting pipe fixing rings 152 located on the upper and lower surfaces of the central mounting plate 150, respectively. The arm fixing rings 151 and 152 are used to fix the arm extension portion and the connecting pipe, respectively, and their central axes are perpendicular to each other. In this example, by setting the orthogonal connection module 15 to connect the arm extension portion and the connecting pipe, the stability of the connection between the two triangular assemblies is further improved, thereby enhancing the structural strength of the frame 10.

[0049] In one embodiment, the frame further includes a cross-connection module 16. The cross-connection module 16 includes an intermediate mounting plate 160 and a first connecting pipe fixing ring and a second connecting pipe fixing ring disposed on the upper and lower sides of the intermediate mounting plate 160. The first connecting pipe fixing ring 161 and the second connecting pipe fixing ring 162 are respectively used to fix the first connecting pipe 112 and the second connecting pipe 122, and the included angle between the central axes of the first connecting pipe fixing ring 161 and the second connecting pipe fixing ring 162 is matched with the included angle between the first connecting pipe 112 and the second connecting pipe 122. Therefore, by setting the cross-connection module 16 to connect the first connecting pipe 112 and the second connecting pipe 122, the stability of the connection between the two triangular components is further improved, thereby enhancing the structural strength of the frame 10.

[0050] As a second aspect, this utility model also provides a six-rotor unmanned aerial vehicle, which includes the aforementioned six-rotor unmanned aerial vehicle frame 10, six rotors (not shown) and a flight control module (not shown). The six rotors are installed one-to-one on each of the arms 13, and the flight control module is installed on the fuselage and used to control the working state of the rotors.

[0051] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of the utility model in this utility model that have similar functions.

[0052] Although the subject matter has been described using language specific to structural features and / or methodological logic, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. Rather, the specific features and actions described above are merely illustrative examples of implementing the claims.

Claims

1. A six-rotor unmanned aerial vehicle frame, comprising a fuselage, six arms, and landing gear, wherein the fuselage is hexagonal, the arms are used to mount rotors and are fixed to the six corners of the fuselage, and the landing gear is fixed to the underside of the fuselage, characterized in that, The fuselage is composed of a first triangular component and a second triangular component stacked on top of each other; both the first and second triangular components are made of carbon fiber material and have a mounting sleeve at each corner, the center lines of each mounting sleeve are coplanar, and the arm is inserted into the mounting sleeve.

2. The hexacopter airframe of claim 1, wherein, The first triangular assembly includes three first arm fixing modules and three first connecting pipes. The three first connecting pipes form a first triangle. The first arm fixing modules are connected to the two first connecting pipes at the corners of the first triangle. The mounting sleeve includes a first mounting sleeve, which is disposed on the first arm fixing module.

3. The hexacopter airframe of claim 2, wherein, The first arm fixing module includes two sets of first connecting pipe fixing sleeves. Each set of first connecting pipe fixing sleeves includes a pair of pipe clamps for inserting and fixing the first connecting pipe. The pair of pipe clamps are concentrically arranged, and the first included angle formed by the center lines of the two pairs of pipe clamps is matched with the angle of the corner of the first triangle. The first mounting sleeve is located between the two sets of first connecting pipe fixing sleeves and its center line coincides with the angle bisector of the first included angle.

4. The hexacopter airframe of claim 3, wherein, The pair of pipe clamps includes a first pipe clamp and a second pipe clamp arranged opposite to each other along the axis of the first connecting pipe. The first pipe clamp includes a pair of half rings, and each half ring has connecting lugs at both ends connected by threaded connectors. The second pipe clamp includes a clamp plate, one side of which forms a break, and a pair of connecting lugs are connected to both ends of the break.

5. The hexacopter airframe of claim 3, wherein, A reinforcing clamp is provided on the side of the first mounting sleeve away from the arm where the rotor is mounted, and the reinforcing clamp is concentrically arranged with the first mounting sleeve.

6. The hexacopter airframe of claim 5, wherein, The first triangular assembly also includes a first upper mounting plate and a first lower mounting plate, which are arranged parallel to each other. The first connecting pipe fixing sleeve, the first mounting sleeve and the reinforcing pipe clamp are all fixed between the upper mounting plate and the lower mounting plate.

7. The hexacopter airframe of claim 2, wherein, The second triangular assembly includes three second arm fixing modules and three second connecting pipes. The three second connecting pipes form a second triangle. The second arm fixing modules are connected to the two second connecting pipes at the corners of the second triangle. The mounting sleeve includes a second mounting sleeve, which is disposed on the second arm fixing module.

8. The hexacopter airframe of claim 7, wherein, The second arm fixing module includes a second upper mounting plate, a second lower mounting plate, a partition, and two sets of second connecting pipe fixing sleeves. The second upper mounting plate, the partition, and the second lower mounting plate are spaced apart to form an upper mounting space and a lower mounting space. The second mounting sleeve is disposed in the upper mounting space and its center line coincides with the axis of symmetry of the upper mounting space. The two sets of second connecting pipe fixing sleeves are disposed in the lower mounting space with their center lines forming a second included angle. The second included angle is set in accordance with the angle of the corner of the second triangle.

9. The six-rotor unmanned aerial vehicle frame according to claim 8, characterized in that, Each set of second connecting pipe fixing sleeves includes a pair of pipe clamps for inserting and fixing the second connecting pipe. The pair of pipe clamps are concentrically arranged along the axis of the connecting pipe, and the angle bisector of the second included angle formed by the center lines of the two pairs of pipe clamps is parallel to the center line of the second mounting sleeve.

10. The six-rotor unmanned aerial vehicle frame according to claim 7, characterized in that, The arm is defined as an arm extension at the end that passes through the mounting sleeve away from the end used to mount the rotor. The arm extension extends above another triangular assembly and is perpendicular to the connecting pipe of the triangular assembly. It also includes an orthogonal connection module, which includes an intermediate mounting plate and a boom fixing ring and a connecting pipe fixing ring respectively disposed on the upper and lower sides of the intermediate mounting plate. The boom fixing ring and the connecting pipe fixing ring are used to fix the boom extension and the connecting pipe respectively, and their central axes are perpendicular to each other.

11. The hexacopter airframe of claim 7, wherein, It also includes a cross-connection module, which includes an intermediate mounting plate and a first connecting pipe fixing ring and a second connecting pipe fixing ring respectively disposed on the upper and lower sides of the intermediate mounting plate. The first connecting pipe fixing ring and the second connecting pipe fixing ring are used to fix the first connecting pipe and the second connecting pipe, and the included angle between the central axes of the first connecting pipe fixing ring and the second connecting pipe fixing ring is matched with the included angle between the first connecting pipe and the second connecting pipe.

12. A hexacopter unmanned aerial vehicle, characterized by, The device includes a six-rotor unmanned aerial vehicle frame as described in any one of claims 1 to 11, six rotors and a flight control module, wherein the six rotors are mounted one-to-one on each of the arms, and the flight control module is mounted on the fuselage and used to control the working state of the rotors.

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