Detachable arm structure of multi-rotor unmanned aerial vehicle

Abstract

The utility model provides a detachable arm structure of a multi-rotor unmanned aerial vehicle. The detachable arm structure comprises an unmanned aerial vehicle body component, unmanned aerial vehicle arms and propellers, an unmanned aerial vehicle body component is fixed to one end of each unmanned aerial vehicle arm through a fastening assembly, and a propeller is fixed to the other end of each unmanned aerial vehicle arm through a fixing sleeve. The fastening assembly comprises a plurality of positioning sleeves arranged on the sides, away from propellers, of the unmanned aerial vehicle arms in a sleeving mode, the unmanned aerial vehicle body component is a housing which is through left and right, and the outer walls of the positioning sleeves are arranged in the housing in a matched mode. According to the detachable arm structure of the multi-rotor unmanned aerial vehicle, a fastening assembly connection mode is adopted, the mode that a traditional unmanned aerial vehicle arm and a vehicle body are welded is abandoned, and rapid disassembly and assembly of the arm are achieved. When the unmanned aerial vehicle is carried, the vehicle arms can be detached, the size and occupied space of the unmanned aerial vehicle are greatly reduced, the unmanned aerial vehicle can be conveniently put into a backpack and other small spaces to be carried, and the problem that a traditional fixed vehicle arm unmanned aerial vehicle is inconvenient to carry is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, concretely relates to a kind of detachable machine arm structure of multi-rotor unmanned plane. BACKGROUND

[0002] The rotor unmanned plane has the characteristics of small volume, light weight, low cost, flexible operation and high safety, and is widely used in aerial photography, detection, search and rescue, resource exploration, agriculture and other fields. The multi-rotor unmanned plane generally has multiple arms, and multiple propellers and corresponding driving motors are arranged at the outer end of each arm. The unmanned plane arm usually directly carries power devices such as motors and propellers, and generally has multiple propellers, which are controlled by multiple motors to realize flight.

[0003] However, the traditional unmanned plane arm is usually fixedly designed, that is, the arm and the fuselage are fixedly connected by welding. This design of the fixedly installed rotor unmanned plane is simple and reliable, but lacks flexibility, has the problem of inconvenience to carry, and has many inconveniences in maintenance and replacement. How to realize the quick disassembly and modular design of the arm to improve the maintainability and portability of the unmanned plane is an important direction of the current unmanned plane technology development. SUMMARY

[0004] The utility model provides a kind of detachable machine arm structure of multi-rotor unmanned plane, solve the problem of inconvenient quick disassembly of unmanned plane arm in prior art by welding.

[0005] The technical solution of the utility model is as follows:

[0006] A kind of detachable machine arm structure of multi-rotor unmanned plane, including unmanned plane fuselage component, unmanned plane arm and propeller;One end of the unmanned plane arm is fixed with unmanned plane fuselage component by fastening assembly, the other end of unmanned plane arm is fixed with propeller;

[0007] The fastening assembly includes multiple positioning sleeves arranged on the side of the unmanned plane arm away from the propeller, the unmanned plane fuselage component is a left-right through shell, and the outer wall of the positioning sleeve is adapted in the shell.

[0008] Further, the fastening assembly further includes multiple screws vertically penetrating the shell, the positioning sleeve and the unmanned plane arm, and the screw is fixed at the bottom of the shell by nut thread connection.

[0009] Further, the outer part of the positioning sleeve is polygonal, the shell is rectangular, and the polygonal symmetrical edge of the positioning sleeve is adapted to the rectangular symmetrical edge of the shell.

[0010] Further, the inner side of the positioning sleeve is a circular hole suitable for the unmanned plane arm.

[0011] Further, the fixing sleeve is rectangular in shape on the outside and circular hole-shaped on the inside to fit the drone arm; a plurality of stepped holes are arranged on the fixing sleeve and are fixed to the upper part of the propeller by a plurality of bolts; the other three sides of the fixing sleeve are fixed by bolts extending from the outside to the inside of the drone arm and then fixed by nuts.

[0012] Further, the application further comprises a motor controller fixed to the outside of the drone arm by the annular hoop; and the motor controller is electrically connected to the motor of the propeller.

[0013] The technical scheme provided by the application has the beneficial effects that:

[0014] The detachable arm structure of the multi-rotor drone adopts the fastening assembly connection mode, discards the welding mode between the traditional drone arm and the drone body, and realizes the quick disassembly and assembly of the arm. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Fig. 1 Figure 1 is a schematic diagram of the detachable arm structure of the multi-rotor drone of the present application.

[0017] Fig. 2 Figure 2 is an exploded schematic diagram of the detachable arm structure of the multi-rotor drone of the present application.

[0018] Fig. 3 Figure 3 is a schematic diagram of the fixing sleeve of the present application.

[0019] In the figure: 10, drone arm; 20, propeller; 30, motor controller; 40, fixing sleeve; 41, stepped hole; 50, fastening assembly; 51, positioning sleeve; 52, screw; 60, drone body part. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below in combination with the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present utility model.

[0021] With reference to Figs. 1-3 A multi-rotor unmanned aerial vehicle detachable machine arm structure, comprising an unmanned aerial vehicle body part 60, an unmanned aerial vehicle arm 10 and a propeller 20; one end of the unmanned aerial vehicle arm 10 is fixed with the unmanned aerial vehicle body part 60 through a fastening assembly 50, and the other end of the unmanned aerial vehicle arm 10 is fixed with the propeller 20; the fastening assembly 50 comprises a plurality of positioning sleeves 51 sleeved on the side of the unmanned aerial vehicle arm 10 away from the propeller 20, the unmanned aerial vehicle body part 60 is a left-right through shell, and the outer wall of the positioning sleeve 51 is adapted in the shell.

[0022] The unmanned aerial vehicle arm 10 is connected with the unmanned aerial vehicle body part 60 through the fastening assembly 50, the fastening assembly 50 is composed of a plurality of positioning sleeves 51, the outer wall of the positioning sleeve 51 is tightly matched with the shell of the body part 60. When it is necessary to install or dismount the machine arm, the positioning sleeve 51 is moved relative to the shell by operating the fastening assembly 50, so that the machine arm 10 can be quickly installed or dismounted. This design not only improves the portability and maintainability of the unmanned aerial vehicle, but also ensures the stable connection between the propeller 20 and the machine arm 10, thereby ensuring the safety and efficiency of the unmanned aerial vehicle flight.

[0023] In some embodiments, the fastening assembly 50 further comprises a plurality of screws 52 vertically penetrating the shell, the positioning sleeve 51 and the unmanned aerial vehicle arm 10, and the screw 52 is fixed at the bottom of the shell through a nut threaded connection. The fastening assembly 50 realizes the fixation of the unmanned aerial vehicle arm 10 through the screw 52. When it is necessary to install the machine arm, the positioning sleeve 51 is sleeved on the machine arm, and the screw 52 penetrates the positioning sleeve and the shell, and finally the nut is used to fix the screw at the bottom of the shell. This process not only ensures the tight fit between the machine arm and the body part 60, but also provides strong fixation force through the vertical penetration and threaded connection of the screw, so that the machine arm can maintain stability under various flight conditions. When dismounting, the nut is loosened, and the machine arm can be easily dismounted from the body part, achieving the purpose of quick dismounting, and ensuring the portability and maintainability of the unmanned aerial vehicle.

[0024] In some embodiments, the positioning sleeve 51 has a polygonal shape on the outside, and the cover has a rectangular shape. The polygonal shape of the positioning sleeve 51 is symmetrical to the rectangular shape of the cover. The polygonal design of the positioning sleeve 51 allows it to precisely match the rectangular design of the cover. When the arm 10 needs to be installed on the body part 60, by aligning the symmetrical edges of the polygonal shape of the positioning sleeve 51 with the symmetrical edges of the rectangular shape of the cover, it can ensure that the arm is correctly positioned inside the cover. This precise fit reduces errors during installation, improves efficiency and accuracy of installation. At the same time, this design also helps to maintain the stability of the arm during the flight of the unmanned aerial vehicle, because the precise positioning can reduce the relative movement between the arm and the body, thereby reducing the vibration and noise during flight, improving the overall performance of the unmanned aerial vehicle. In addition, this design also helps to quickly disassemble the arm when needed, because the precise fit makes the disassembly process smoother, without the need for complex adjustments, further improving the maintainability and portability of the unmanned aerial vehicle.

[0025] In some embodiments, the inside of the positioning sleeve 51 is a circular hole shape that fits the unmanned aerial vehicle arm 10. The circular hole design on the inside of the positioning sleeve 51 is to precisely match the shape and size of the unmanned aerial vehicle arm 10. When the arm needs to be installed on the body part 60, the arm can be directly inserted into the circular hole of the positioning sleeve 51, and because the shape and size of the circular hole are adapted to the arm, the arm can be firmly fixed in the positioning sleeve after insertion. This design makes the connection between the arm and the body part more tight and stable, reducing the shaking of the arm during flight, thereby improving the flight stability and maneuverability of the unmanned aerial vehicle. In addition, this design also helps to quickly disassemble the arm when needed, because the arm can be easily pulled out of the positioning sleeve without the need for additional tools or complex operations.

[0026] In some embodiments, the outside of the fixing sleeve 40 is rectangular, and the inside is a circular hole shape that fits the unmanned aerial vehicle arm 10. The fixing sleeve 40 is provided with a plurality of stepped holes 41, and the stepped holes 41 are fixed on the upper part of the propeller 20 through a plurality of bolts. The other three sides of the fixing sleeve 40 are fixed by extending from the outside to the inside of the unmanned aerial vehicle arm 10 through the bolts and cooperating with the nuts. The design of the fixing sleeve 40 is to realize the stable connection between the propeller 20 and the unmanned aerial vehicle arm 10. The circular hole design on the inside of the fixing sleeve 40 allows it to closely fit the arm, while the rectangular design on the outside provides a stable structure for fixing through bolts and nuts. When installing the propeller, the propeller can be firmly fixed on the outer end of the arm through the stepped holes 41 on the fixing sleeve 40 and the bolts. This design not only allows precise positioning and fixing of the propeller, but also allows adjustment of the tightness of the bolts to adapt to different models of propellers, providing flexibility. At the same time, the other three sides of the fixing sleeve 40 are fixed by extending from the outside to the inside of the unmanned aerial vehicle arm 10 through the bolts and cooperating with the nuts, forming a full-coverage fixing structure to ensure the stability of the propeller during the flight of the unmanned aerial vehicle.

[0027] In some embodiments, the motor controller 30 is fixed to the outside of the UAV arm 10 by a ring-shaped hoop, and the motor controller 30 is electrically connected to the motor of the propeller 20. The motor controller 30 is fixed to the outside of the UAV arm 10 by a ring-shaped hoop, which not only ensures the stability of the motor controller, but also facilitates the maintenance and replacement of the motor controller. The motor controller is electrically connected to the motor of the propeller 20, and by sending control signals to adjust the speed and direction of the propeller, the flight attitude and speed of the UAV are controlled. This design makes the flight control of the UAV more flexible and accurate, and also improves the flight efficiency and safety of the UAV. Through the precise control of the motor controller, the UAV can better adapt to different flight environments and task requirements, improving the application range and practicality of the UAV.

[0028] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A detachable arm structure for a multi-rotor unmanned aerial vehicle (UAV), comprising a UAV fuselage (60), a UAV arm (10), and a propeller (20); characterized in that, One end of the drone arm (10) is fixed to the drone body component (60) by a fastening assembly (50), and the other end of the drone arm (10) is fixed to a propeller (20). The fastening assembly (50) includes multiple positioning sleeves (51) fitted on the side of the UAV arm (10) away from the propeller (20). The UAV body component (60) is a cover that runs through the left and right sides, and the outer wall of the positioning sleeve (51) is adapted to the inside of the cover.

2. The detachable arm structure of the multi-rotor UAV as described in claim 1, characterized in that, The fastening assembly (50) also includes multiple screws (52) that penetrate vertically through the housing, positioning sleeve (51), and drone arm (10), the screws (52) being fixed to the bottom of the housing by a nut thread connection.

3. The detachable arm structure of the multi-rotor UAV as described in claim 1, characterized in that, The outer part of the positioning sleeve (51) is polygonal, and the cover is rectangular. The polygonal symmetrical side of the positioning sleeve (51) is adapted to the rectangular symmetrical side of the cover.

4. The detachable arm structure of the multi-rotor UAV as described in claim 1, characterized in that, The inner side of the positioning sleeve (51) is shaped like a round hole adapted to the unmanned aerial vehicle arm (10).

5. The detachable arm structure of the multi-rotor UAV as described in claim 1, characterized in that, The top of the drone arm (10) is provided with a fixing sleeve (40) connected by bolts. The outer side of the fixing sleeve (40) is rectangular, and the inner side is a round hole adapted to the drone arm (10). The fixing sleeve (40) is provided with multiple stepped holes (41). The stepped holes (41) are fixed to the upper part of the propeller (20) by multiple bolts. The other three sides of the fixing sleeve (40) are respectively fixed by bolts extending from the outside to the inner side of the drone arm (10) and then fixed with nuts.

6. The detachable arm structure of the multi-rotor UAV as described in claim 1, characterized in that, It also includes a motor controller (30), which is fixed to the outside of the UAV arm (10) by a ring clamp; and the motor controller (30) is electrically connected to the motor of the propeller (20).

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