Crossing machine arm assembly and FPV crossing machine

Abstract

The machine arm assembly comprises a machine arm body, a first end base and a second end base, the two ends of the machine arm body are sleeved with the first end base and the second end base respectively, the first end base is connected with a machine frame of the crossing machine, the second end base is symmetrically provided with motor bases, brushless motors are arranged on the motor bases respectively, and the brushless motors are connected with the machine frame of the crossing machine. A brushless motor is arranged on the arm body, propeller blades are arranged at the output end of the brushless motor, the arm body comprises a first supporting arm section, a second supporting arm section and a third supporting arm section which are sequentially connected, the joint of the first supporting arm section and the second supporting arm section extends downwards to form a supporting leg, and the first supporting arm section, the second supporting arm section and the third supporting arm section are integrally formed and are of a hollow rhombic structure. The first end seat is matched with the arm body, so that the arm assembly is convenient to disassemble and assemble; the second end seat is matched with the motor seat, and two brushless motors are mounted, so that the flight load can be effectively improved; the arm body is of a hollow rhombic structure, so that the situation that electric wires are scattered and exposed outside to affect flight safety is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an arm assembly of a racing drone and an FPV racing drone. Background Art

[0002] Racing drones belong to a unique branch in the field of unmanned aerial vehicles. They are a type of racing drone with a relatively short endurance time. In recent years, FPV racing drone technology has become increasingly well-known to the public and is becoming more and more popular in aspects such as movies, advertisements, corporate promotional videos, extreme sports, and self-driving tour life records. Some players usually buy or make accessories to assemble them by themselves. Due to the lack of unified standards, existing racing drones have problems such as complex arm disassembly, poor stability, limited output power of a single coaxial motor, low load capacity, and exposed motor wiring, which is easy to hook onto obstacles and cause wire disconnection and drone crashing. Summary of the Invention

[0003] The main purpose of the utility model is to overcome the defects existing in the above background art, and provide an arm assembly of a racing drone and an FPV racing drone.

[0004] To achieve the above purpose, the arm assembly of the racing drone proposed by the utility model includes an arm body, a first end seat, and a second end seat. The first end seat and the second end seat are respectively sleeved at both ends of the arm body. The first end seat is connected to the frame of the racing drone. Two sets of motor seats are symmetrically arranged up and down on the second end seat. Brushless motors are respectively arranged on the two sets of motor seats. Propeller blades are arranged on the output ends of the brushless motors. The arm body includes a first arm segment, a second arm segment, and a third arm segment connected in sequence. A leg extends downward at the connection between the first arm segment and the second arm segment. The first arm segment, the second arm segment, and the third arm segment are integrally formed and are in a hollow diamond structure. The first end seat is sleeved on the first arm segment, and the second end seat is sleeved on the third arm segment. The first end seat facilitates the stable installation of one end of the arm body on the frame of the racing drone. Through the cooperation of the second end seat and the motor seats, two brushless motors can be installed on one arm body to provide sufficient flight power and effectively improve the flight load capacity. By setting the arm body as a hollow diamond structure, relative rotation between the arm body and the first end seat and the second end seat is avoided, and the overall stability is increased. At the same time, the wires electrically connected to the brushless motors can be routed through the inside of the arm body, avoiding the wires being scattered outside. The leg can support the arm body away from the ground, eliminating the need to install additional support components for the racing drone.

[0005] Further optimize the technical solution. The first end seat is provided with a first insertion interface corresponding to the first arm segment. A plurality of first fixing holes penetrating into the first insertion interface are formed on the outer wall surrounding the first end seat, and first fixing screws are arranged in the first fixing holes. After the first arm segment is inserted into the first insertion interface of the first end seat, the first fixing screws pass through the first fixing holes and press against the outer wall of the first arm segment to prevent the first arm segment from axially loosening and separating from the first end seat.

[0006] Further optimize the technical solution. The outer wall of the first end seat is symmetrically provided with first H-shaped mounting parts. Second fixing holes are arranged on the first H-shaped mounting parts, and second fixing screws are arranged in the second fixing holes. The first H-shaped mounting parts are used for mounting with the traversing machine frame, and then the second fixing screws are used for fastening.

[0007] Further optimize the technical solution. One end of the first insertion interface is provided with a first inward flanging. Limitation is carried out through the first inward flanging to prevent the first arm segment from passing out of the first insertion interface.

[0008] Further optimize the technical solution. The second end seat is provided with a second insertion interface corresponding to the third arm segment. A plurality of third fixing holes penetrating into the second insertion interface are formed on the outer wall surrounding the second end seat, and third fixing screws are arranged in the third fixing holes. When the third arm segment is inserted into the second insertion interface, fastening is carried out by tightening the third fixing screws to pass through the third fixing holes and press against the outer wall of the third arm segment, preventing the second end seat from axially loosening and separating from the third arm segment.

[0009] Further optimize the technical solution. The outer wall of the second end seat is symmetrically provided with second H-shaped mounting parts. Fourth fixing holes are arranged on the second H-shaped mounting parts. Installation ears extending downward are arranged around the motor seat, and fifth fixing holes corresponding to the fourth fixing holes are formed on the installation ears. After the fourth fixing holes and the fifth fixing holes are aligned, fixation is carried out by passing fourth fixing screws through. When installing the motor seat onto the second H-shaped mounting part on the second end seat, after the fourth fixing holes and the fifth fixing holes are aligned, fixation can be carried out by passing fourth fixing screws through.

[0010] Further optimize the technical solution. A plurality of sixth fixing holes are vertically arranged on the motor seat. The outer shell of the brushless motor is provided with seventh fixing holes corresponding to the sixth fixing holes. After the sixth fixing holes and the seventh fixing holes are aligned, fixation is carried out by passing fifth fixing screws through. The brushless motor is stably installed onto the motor seat through the fifth fixing screws.

[0011] Further optimize the technical solution. One end of the second insertion interface is provided with a second inward flanging. Limitation is carried out through the second inward flanging to prevent the third arm segment from passing out of the second insertion interface.

[0012] The present utility model also provides an FPV drone, which includes a drone frame, electrical components, and the above-mentioned arm assembly. The electrical components are installed on the drone frame, and the arm assembly is fixedly installed around the drone frame. The electrical components are electrically connected to the brushless motors on the arm assembly.

[0013] To further optimize the technical solution, mounting openings are respectively provided around the drone frame. Eighth fixing holes corresponding to the second fixing holes are provided on the mounting openings. After the second fixing holes and the eighth fixing holes are aligned, they are fixed by passing second fixing screws through. During installation, the first end seat is inserted into the mounting opening. After the second fixing holes on the first H-shaped mounting part are aligned with the eighth fixing holes, they are tightened with second fixing screws for installation, which is convenient for disassembly and assembly.

[0014] The beneficial effects of the present utility model include: through the cooperation of the first end seat and the arm body, it is convenient for the disassembly and assembly of the arm assembly; through the second end seat, two motor seats are symmetrically installed, so that two brushless motors can be stably installed on the same arm body to provide sufficient flight power and effectively improve the flight load capacity; by setting the arm body as a hollow diamond structure, the overall structural stability is increased, and the wires of the brushless motors can be routed through the inside of the arm body to avoid the wires from being scattered and exposed outside, which are easily hooked by obstacles and disconnected, resulting in the damage of the drone. Description of the Drawings

[0015] Figure 1 is an exploded view of the arm assembly in an embodiment of the present utility model.

[0016] Figure 2 is a schematic diagram of the first end seat in an embodiment of the present utility model.

[0017] Figure 3 is a schematic diagram of the second end seat in an embodiment of the present utility model.

[0018] Figure 4 is a schematic diagram of the motor seat in an embodiment of the present utility model.

[0019] Figure 5 is a schematic diagram of the brushless motor in an embodiment of the present utility model.

[0020] Figure 6 is an overall schematic diagram of the FPV drone in an embodiment of the present utility model.

[0021] Figure 7 is Figure 6 a partial enlarged schematic diagram of part A in

[0022] Reference numerals: 1 arm assembly; 101 first arm segment; 102 second arm segment; 103 third arm segment; 104 leg; 2 first end seat; 201 first socket; 202 first fixing hole; 203 first fixing screw; 204 first H-shaped mounting part; 205 second fixing hole; 206 second fixing screw; 207 first inward flange; 3 second end seat; 301 second socket; 302 third fixing hole; 303 third fixing screw; 304 second H-shaped mounting part; 305 fourth fixing hole; 306 second inward flange; 4 motor seat; 401 mounting ear; 402 fifth fixing hole; 403 fourth fixing screw; 404 sixth fixing hole; 405 fifth fixing screw; 5 brushless motor; 501 seventh fixing hole; 6 propeller blade; 7 drone frame; 701 mounting opening; 702 eighth fixing hole. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the embodiments of the present 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 only used to explain the present utility model and are not used to limit the present utility model.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be for a fixing function or for an electrical connection function.

[0025] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0027] Please refer to Figures 1 to 5, the arm assembly of the racing quadcopter disclosed in an embodiment includes an arm body 1, a first end seat 2 and a second end seat 3. The first end seat 2 and the second end seat 3 are respectively sleeved on both ends of the arm body 1. The first end seat 2 is used to connect with the frame 7 of the racing quadcopter to install the arm assembly on the racing quadcopter. On the upper and lower ends of the second end seat 3, two sets of motor seats 4 are symmetrically arranged. Brushless motors 5 are respectively fixed on the two sets of motor seats 4. A propeller blade 6 is arranged on the output end of the brushless motor 5. The arm body 1 includes a first arm segment 101, a second arm segment 102 and a third arm segment 103 which are connected in sequence. A leg 104 extends downward at the connection between the first arm segment 101 and the second arm segment 102. Specifically, the second arm segment 102 is inclined upward, and the first arm segment 101 and the third arm segment 103 are both horizontally arranged. The first arm segment 101, the second arm segment 102 and the third arm segment 103 are integrally formed and have a hollow diamond structure. The first end seat 2 is sleeved on the first arm segment 101, and the second end seat 3 is sleeved on the third arm segment 103. In this embodiment, the arm assembly can be stably installed on the frame 7 of the racing quadcopter through the first end seat 2; the two sets of motor seats 4 are symmetrically installed up and down through the second end seat 3, so that two brushless motors 5 can be stably installed on one arm body 1 to provide sufficient flight power, effectively improving the flight load capacity and not easily generating jitter; by setting the arm body 1 as a hollow diamond structure, relative rotation between the arm body 1 and the first end seat 2 and the second end seat 3 is avoided, increasing stability, and the wires electrically connected to the brushless motor 5 can be routed through the inside of the arm body 1, avoiding the wires from being scattered and exposed outside and easily hooked by obstacles, resulting in wire disconnection and even damage to the racing quadcopter; through the leg 104, the arm body 1 can be supported away from the ground, avoiding the propeller blade 6 on the lower side hitting the obstacles on the ground during operation and affecting safe flight.

[0028] In a specific example, a first insertion interface 201 corresponding to the first arm segment 101 is provided on the first end seat 2. The size of the first insertion interface 201 corresponds to the outer surface size of the first arm segment 101, so that the first end seat 2 can be tightly inserted and sleeved on the first arm segment 101 of the arm body 1 through the first insertion interface 201. A number of first fixing holes 202 penetrating into the first insertion interface 201 are opened on the outer wall of the first end seat 2. A first fixing screw 203 is arranged in the first fixing hole 202. After the first end seat 2 is inserted into the first arm segment 101, by screwing the first fixing screw 203 into the first fixing hole 202, the end of the first fixing screw 203 abuts against the outer wall of the first arm segment 101, preventing the first end seat 2 from detaching from the first arm segment 101.

[0029] In a specific example, two groups of first H-shaped mounting portions 204 are symmetrically provided on the outer wall of the first end seat 2. A second fixing hole 205 is vertically provided on the first H-shaped mounting portion 204, and a second fixing screw 206 is provided in the second fixing hole 205. When the first end seat 2 is inserted into the traversing machine frame 7 for connection and installation, the first H-shaped mounting portion 204 contacts the traversing machine frame 7, and then it is fastened by tightening the second fixing screw 206.

[0030] In a specific example, a first inward flange 207 is provided at one end of the first insertion interface 201. After the first arm segment 101 is inserted into the first insertion interface 201, it is limited by the first inward flange 207 to prevent the first arm segment 101 from passing through the first insertion interface 201, further improving the stability of the installation.

[0031] In a specific example, a second insertion interface 301 corresponding to the third arm segment 103 is provided on the second end seat 3. Similarly, the size of the second insertion interface 301 corresponds to the outer surface size of the three-arm segment 103, so that the second end seat 3 can be tightly inserted and sleeved onto the third arm segment 103 of the arm body 1 through the second insertion interface 301. A plurality of third fixing holes 302 penetrating into the second insertion interface 301 are provided on the outer wall surrounding the second end seat 3, and a third fixing screw 303 is provided in the third fixing hole 302. After the second end seat 3 is inserted into the third arm segment 103 for installation, it is fastened by tightening the third fixing screw 303 to prevent the second end seat 3 from loosening and separating from the third arm segment 103.

[0032] In a specific example, second H-shaped mounting portions 304 are symmetrically provided on the outer wall of the second end seat 3. A fourth fixing hole 305 is provided on the second H-shaped mounting portion 304. Mounting ears 401 extending downward are provided around the motor seat 4, and a fifth fixing hole 402 corresponding to the fourth fixing hole 305 is provided on the mounting ears 401. After the fourth fixing hole 305 and the fifth fixing hole 402 are aligned, they are fixed by passing a fourth fixing screw 403 through, for fixing the motor seat 4 on the second end seat 3 respectively.

[0033] In a specific example, a plurality of sixth fixing holes 404 are vertically provided on the motor seat 4. A seventh fixing hole 501 corresponding to the sixth fixing holes 404 is provided on the outer shell of the brushless motor 5. After the sixth fixing holes 404 and the seventh fixing holes 501 are aligned, they are fixed by passing a fifth fixing screw 405 through, for fixedly installing the brushless motor 5 on the motor seat 4. When it needs to be disassembled, only the fifth fixing screw 405 needs to be loosened.

[0034] In a specific example, a second inward flange 306 is provided at one end of the second insertion port 301. After the third arm segment 103 is inserted into the second insertion port 301, it is limited by the second inward flange 306 to prevent the third arm segment 103 from passing through the second inward flange 306, further improving the stability of the installation.

[0035] Please refer to Figure 6 and Figure 7 , in an embodiment, an FPV drone is also disclosed. The FPV drone includes a drone frame 7, electrical components (not shown in the figure), and the above-mentioned arm assembly. The electrical components are installed on the drone frame 7. The electrical components include some existing electrical modules such as an FPV camera, a flight controller, a wireless image transmitter, an electronic speed controller, and a power supply battery. The arm assembly is fixedly installed around the drone frame 7. The electrical components are electrically connected to the brushless motors 5 on the arm assembly to control the flight of the FPV drone.

[0036] In a specific example, mounting openings 701 are respectively provided around the drone frame 7. An eighth fixing hole 702 corresponding to the second fixing hole 205 is provided at the mounting opening 701. After the second fixing hole 205 and the eighth fixing hole 702 are aligned, they are fixed by passing a second fixing screw 206 through them to stably mount the arm assembly to the drone frame 7.

[0037] The above content is a further detailed description of the present invention in combination with specific / preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, they can make several substitutions or modifications to these described embodiments, and these substitution or modification methods should all be regarded as belonging to the protection scope of the present invention. In the description of this specification, the description of reference terms such as "an embodiment", "some embodiments", "preferred embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. Without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions, and alterations can be made herein without departing from the scope of protection of the patent application.

Claims

1. A drone arm assembly, characterized in that: It includes an arm body, a first end seat and a second end seat. The first end seat and the second end seat are respectively sleeved on both ends of the arm body. The first end seat is connected to the frame of the racing drone. The second end seat is symmetrically provided with two groups of motor seats up and down. Brushless motors are respectively arranged on the two groups of motor seats. Propeller blades are arranged on the output ends of the brushless motors. The arm body includes a first arm segment, a second arm segment and a third arm segment which are connected in sequence. A leg extends downward at the connection between the first arm segment and the second arm segment. The first arm segment, the second arm segment and the third arm segment are integrally formed and are in a hollow diamond structure. The first end seat is sleeved on the first arm segment, and the second end seat is sleeved on the third arm segment.

2. The robotic arm assembly according to claim 1, wherein: The first end seat is provided with a first insertion port corresponding to the first arm segment. A plurality of first fixing holes penetrating into the first insertion port are formed on the outer wall around the first end seat. First fixing screws are arranged in the first fixing holes.

3. The robotic arm assembly according to claim 2, wherein: First H-shaped mounting parts are symmetrically arranged on the outer wall of the first end seat. Second fixing holes are formed on the first H-shaped mounting parts. Second fixing screws are arranged in the second fixing holes.

4. The robotic arm assembly according to claim 3, wherein: One end of the first insertion port is provided with a first inward flange.

5. The robotic arm assembly according to any one of claims 1 to 4, characterized in that: The second end seat is provided with a second insertion port corresponding to the third arm segment. A plurality of third fixing holes penetrating into the second insertion port are formed on the outer wall around the second end seat. Third fixing screws are arranged in the third fixing holes.

6. The robotic arm assembly according to claim 5, wherein: Second H-shaped mounting parts are symmetrically arranged on the outer wall of the second end seat. Fourth fixing holes are formed on the second H-shaped mounting parts. Mounting ears extending downward are arranged around the motor seat. Fifth fixing holes corresponding to the fourth fixing holes are formed on the mounting ears. After the fourth fixing holes and the fifth fixing holes are aligned, they are fixed by passing fourth fixing screws through.

7. The arm assembly according to claim 6, wherein: A plurality of sixth fixing holes are vertically arranged on the motor seat. Seventh fixing holes corresponding to the sixth fixing holes are formed on the outer shell of the brushless motor. After the sixth fixing holes and the seventh fixing holes are aligned, they are fixed by passing fifth fixing screws through.

8. The robotic arm assembly according to claim 7, wherein One end of the second insertion port is provided with a second inward flange.

9. An FPV drone, characterized in that: It includes the frame of the racing drone, electrical components and the arm assembly according to any one of claims 1 to 8. The electrical components are installed on the frame of the racing drone. The arm assembly is fixedly installed around the frame of the racing drone. The electrical components are electrically connected to the brushless motors on the arm assembly.

10. The FPV drone according to claim 9, characterized in that: Mounting ports are respectively arranged around the frame of the racing drone. Eighth fixing holes corresponding to the second fixing holes are formed on the mounting ports. After the second fixing holes and the eighth fixing holes are aligned, they are fixed by passing second fixing screws through.

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