Combined arm of unmanned aerial vehicle

Abstract

The utility model discloses a combined formula machine arm of unmanned plane belongs to unmanned plane technical field, a combined formula machine arm of unmanned plane, including base, the upper and lower parts of base are installed with mounting seat and firm seat respectively, the upper left corner position of mounting seat is installed with motor no.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a combined arm for a UAV. Background Technology

[0002] With the development of drone technology, multi-rotor drones have been widely used in aerial photography, agricultural plant protection, logistics delivery, and emergency rescue. However, traditional multi-rotor drones typically have fixed arms, resulting in a large overall size that takes up a lot of space during transportation and storage, making them inconvenient to carry. At the same time, repairing or replacing the arms is complex, time-consuming, and labor-intensive, affecting efficiency.

[0003] Based on the above, the inventors have discovered that the existing folding mechanism of the drone arm is cumbersome in design and has high manufacturing costs. It only meets basic flight requirements and lacks extended functions such as clamping and load adaptation. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a combined arm for drones, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a modular arm for drones. This design can prevent the problems caused by the fixed structure of drone arms, which results in a large overall size, takes up a lot of space during transportation and storage, and is not portable. At the same time, the repair or replacement of the arms is complicated, time-consuming and labor-intensive.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A modular arm for a drone includes a base. The upper and lower parts of the base are respectively equipped with mounting seats and a fixed seat. A second motor is mounted at the upper left corner of the mounting seat. An arm assembly is mounted on one side of the second motor. The arm assembly is composed of a first movable arm, a second movable arm, a third movable arm, and a fourth movable arm. A first motor is mounted at the connection points between the first, second, third, and fourth movable arms. Rotating shafts are mounted on both sides of the first motor. An arc-shaped edge is fixedly connected to the lower part of the base. A retaining seat is snapped into the lower part of the arc-shaped edge. A fixing plate is fixedly connected to one side of the retaining seat. A locking seat is bolted to the upper part of the fixing plate. A spring pin is mounted on the inner side of the locking seat. A movable joint is mounted on one side of the fourth movable arm, and a gripper is mounted on one side of the movable joint.

[0009] Furthermore, a motor three is installed at the upper right corner of the mounting base, and a pulley two is driven to the lower output end of the motor three. A pulley one is installed on one side of the pulley two, and a belt is sleeved on the outer side of the pulley two and the pulley one. A turntable is installed above the pulley one via an auxiliary shaft, and the motor two is installed directly above the turntable.

[0010] Furthermore, the structures of movable arm one, movable arm two, movable arm three, and movable arm four are identical.

[0011] Furthermore, the movable joint includes an adapter seat on one side where the movable arm four is mounted, a connecting rod one is mounted above the adapter seat, a connecting rod two is mounted on the connecting rod one via a movable shaft one, and the connecting rod two is connected to the gripper via the movable shaft two.

[0012] Furthermore, the fixing plate is provided in two sets, with each set of two fixing plates forming a group, symmetrically arranged on both sides of the card seat.

[0013] Furthermore, the arc-shaped edges are symmetrically arranged on both sides below the base.

[0014] Furthermore, a slot is formed on the outer wall of the card holder, and the slot is inserted into a spring pin.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] This solution, through the design of a modular movable arm structure, achieves modular design and rapid assembly / disassembly of the arms, improving the portability and maintenance efficiency of the drone. First, the mounting base is locked to the curved edge by spring pins. Then, motors one and two are activated, causing each movable arm to unfold sequentially. Subsequently, motor three controls the arm angle to complete attitude adjustment. Finally, the gripper is used to grasp and transport the target object. The linkage structure between motor one and the rotating shaft enables the automatic unfolding and folding of the movable arms to adapt to different transportation and flight needs. The gripper and movable joint structure enable flexible grasping of the drone's end-effector load, expanding its application range. The overall structure is simple, with low processing cost and convenient operation, making it suitable for various mission scenarios such as aerial photography, agricultural plant protection, and logistics distribution. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the planar aspect of this utility model;

[0020] Figure 3 This is a schematic diagram of the main body of the robot arm of this utility model;

[0021] Figure 4 This is a schematic diagram showing the disassembled mounting base of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Base; 2. Mounting seat; 21. Pulley 1; 22. Pulley 2; 23. Belt; 24. Motor 3; 3. Movable arm 1; 4. Movable arm 2; 5. Movable arm 3; 6. Motor 1; 7. Movable arm 4; 8. Movable joint; 81. Adapter seat; 82. Linkage 1; 83. Linkage 2; 9. Gripper; 10. Arc edge; 11. Secure seat; 12. Fixing plate; 13. Locking seat; 14. Card seat; 15. Motor 2; 16. Rotating shaft; 17. Spring pin. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] Please see Figure 1-4 A combined arm for a drone includes a base 1. Mounting seats 2 and fixed seats 11 are respectively installed on the upper and lower parts of the base 1. A second motor 15 is installed at the upper left corner of the mounting seat 2. An arm assembly is installed on one side of the second motor 15. The arm assembly is composed of movable arms 3, 4, 5, and 7. A first motor 6 is installed at the connection points between movable arms 3, 4, 5, and 7. Rotating shafts 16 are installed on both sides of the first motor 6. The first motor 6 is used to control the unfolding angle between the movable arms, and multi-degree-of-freedom folding is achieved through the rotating shafts 16. A curved edge 10 is fixedly connected to the lower part of the base 1. A card seat 14 is snapped into the lower part of the curved edge 10. A fixing plate 12 is fixedly connected to one side of the card seat 14. A locking seat 13 is bolted to the upper part of the fixing plate 12. A spring pin 17 is installed on the inner side of the locking seat 13. A movable joint 8 is installed on one side of the movable arm 7. A gripper 9 is installed on one side of the movable joint 8. The gripper 9 is used to grasp external loads.

[0027] See Figure 1 and Figure 3Motor 3 24 is installed at the upper right corner of mounting base 2. Belt pulley 22 is connected to the lower output end of motor 3 24. Belt pulley 1 21 is installed on one side of belt pulley 22. Belt 23 is sleeved on the outer side of belt pulley 22 and belt pulley 1 21. A turntable is installed above belt pulley 1 21 via an auxiliary shaft. Motor 2 15 is installed directly above the turntable.

[0028] See Figure 1 and Figure 2 The movable arms 1 (3), 2 (4), 3 (5), and 4 (7) have the same structure. All of them are made of carbon fiber composite material, which has the characteristics of high strength, light weight, and corrosion resistance, and can maintain structural stability in complex environments.

[0029] See Figure 1 and Figure 2 The movable joint 8 includes an adapter seat 81 on one side of the movable arm 7. A connecting rod 82 is mounted above the adapter seat 81. A connecting rod 83 is mounted to the connecting rod 82 via a movable shaft. The connecting rod 83 is connected to the gripper 9 via the movable shaft, and the opening and closing motion of the gripper 9 is achieved through the movable shafts. The gripper 9 is equipped with a miniature servo motor, which can remotely control the gripping force and opening angle via a remote control, making it suitable for gripping small packages, emergency supplies, and other loads.

[0030] See Figure 2 and Figure 4 The fixing plate 12 is provided in two sets, with each set of two fixing plates 12 forming a group, symmetrically arranged on both sides of the card seat 14. The fixing plate 12 is used to install the locking seat 13.

[0031] See Figure 1 and Figure 4 The arc-shaped edges 10 are symmetrically arranged on both sides below the base 1, and the arc-shaped edges 10 are used to limit the card holder 14.

[0032] See Figure 1 and Figure 4 The outer wall of the card holder 14 has a slot, which is inserted into the spring pin 17. The card holder 14 and the arc edge 10 adopt a plug-in quick-release structure, which makes it convenient for users to replace the arm modules of different lengths or functions on site.

[0033] In use: First, lock the mounting base 14 to the arc-shaped edge 10 via the spring pin 17. Then, start motor 6 and motor 15 to unfold each set of movable arms in sequence. Subsequently, control the arm angle via motor 24 to complete the attitude adjustment. Finally, use the gripper 9 to grasp and transport the target object. The linkage structure between motor 6 and the rotating shaft 16 enables the automatic unfolding and folding of the movable arms, adapting to different transportation and flight needs. The structure of gripper 9 and movable joint 8 enables flexible grasping of the drone's end-effector load, expanding its application range. The overall structure is simple, the processing cost is low, and the operation is convenient, making it suitable for various mission scenarios such as aerial photography, agricultural plant protection, and logistics distribution.

[0034] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A combined arm for a drone, comprising a base (1), wherein a mounting seat (2) and a fixed seat (11) are respectively mounted on the upper and lower parts of the base (1), and a motor (15) is mounted on the upper left corner of the mounting seat (2), characterized in that: A robotic arm assembly is installed on one side of the motor 2 (15). The robotic arm assembly is composed of a first movable arm (3), a second movable arm (4), a third movable arm (5), and a fourth movable arm (7). A first motor (6) is installed at the connection between the first movable arm (3), the second movable arm (4), the third movable arm (5), and the fourth movable arm (7). A rotating shaft (16) is installed on both sides of the first motor (6). An arc-shaped edge (10) is fixedly connected to the bottom of the base (1). A card seat (14) is snapped into the bottom of the arc-shaped edge (10). A fixing plate (12) is fixedly connected to one side of the card seat (14). A locking seat (13) is bolted to the top of the fixing plate (12). A spring pin (17) is installed on the inner side of the locking seat (13). A movable joint (8) is installed on one side of the fourth movable arm (7). A gripper (9) is installed on one side of the movable joint (8).

2. The combined arm of a UAV according to claim 1, characterized in that: A motor (24) is installed at the upper right corner of the mounting base (2). A pulley (22) is connected to the lower output end of the motor (24). A pulley (21) is installed on one side of the pulley (22). A belt (23) is fitted on the outer side of the pulley (22) and the pulley (21). A turntable is installed above the pulley (21) via an auxiliary shaft. The motor (15) is installed directly above the turntable.

3. The combined arm of a UAV according to claim 1, characterized in that: The movable arm one (3), movable arm two (4), movable arm three (5) and movable arm four (7) have the same structure.

4. The combined arm of a UAV according to claim 1, characterized in that: The movable joint (8) includes an adapter seat (81) on one side of the movable arm (7) for mounting. A connecting rod (82) is mounted above the adapter seat (81). A connecting rod (83) is mounted on the connecting rod (82) via a movable shaft. The connecting rod (83) is connected to the gripper (9) via the movable shaft.

5. The combined arm of a UAV according to claim 1, characterized in that: The fixing plate (12) is provided in two sets, with each set of two fixing plates (12) forming a set, symmetrically arranged on both sides of the card seat (14).

6. The combined arm of a drone according to claim 1, characterized in that: The arc-shaped edge (10) is symmetrically arranged on both sides below the base (1).

7. The combined arm of a UAV according to claim 1, characterized in that: The outer wall of the card holder (14) has a slot, which is inserted into the spring pin (17).

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