Arm dismounting and mounting structure and unmanned aerial vehicle
The arm assembly and disassembly structure, which uses a connector and a socket to work together, solves the problem of complex arm design for small quadcopter drones, enabling quick assembly and disassembly and instant electrical connection, reducing maintenance costs, and facilitating mass production and upgrades.
Patent Information
- Application Number
- CN202520380363.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing small quadcopter drones have complex arm designs, high maintenance costs, and are difficult for ordinary users to modify.
The arm assembly and disassembly structure adopts a plug-in part and plug-in hole matching, combined with fasteners and electrical connectors to achieve quick plug-in and instant conduction, and enhances stability through limit and snap-fit structures.
It enables quick assembly and disassembly of the robotic arm and instant connection of the motor, reducing maintenance complexity and cost, and facilitating mass production and upgrades.
Smart Images

Figure CN223822039U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to an arm disassembly and assembly structure and a UAV. Background Technology
[0002] Existing small quadcopter drones typically employ a one-piece design (including folding designs) for their arms. This design makes repairs complex and costly when components such as the fuselage, arms, or motors are damaged. Furthermore, the fixed propeller wheelbase makes modification difficult for ordinary users, requiring specialized knowledge and tools. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an easy-to-disassemble arm assembly and disassembly structure and a drone.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a robotic arm assembly / disassembly structure, comprising a housing, an arm, and a motor, wherein the motor is installed at one end of the arm, the housing is provided with a plug-in hole, and the other end of the arm is provided with a plug-in portion for plugging into the plug-in hole; the plug-in portion is provided with a first electrical connector and a fastening portion, the first electrical connector being electrically connected to the motor, and a second electrical connector being provided in the plug-in hole for electrically connecting to the first electrical connector; the housing is provided with a fastening hole and a fastener, wherein when the plug-in portion is inserted into the plug-in hole, the fastening hole is aligned with the fastening portion, and the fastener is used to penetrate the fastening hole and connect to the fastening portion.
[0005] Furthermore, the boom is also equipped with an indicator light structure, which is electrically connected to the first electrical connector.
[0006] Furthermore, the indicator light structure includes a light board, an LED bead, and a light guide. The light board is electrically connected to the first electrical connector, the LED bead is mounted on the light board, one end of the light guide is positioned opposite the LED bead, and the other end of the light guide is exposed on the arm.
[0007] Furthermore, the housing is provided with a buckle, and the arm is provided with a slot. When the plug is inserted into the plug hole, the buckle is engaged with the slot.
[0008] Furthermore, the housing is provided with a slot, and the arm is provided with a buckle. When the plug is inserted into the plug hole, the buckle engages with the slot.
[0009] Furthermore, the arm is also provided with a limiting baffle. When the plug is inserted into the plug hole, the limiting baffle covers the plug hole and abuts against the outer wall of the housing.
[0010] Furthermore, the insertion portion is provided with a first elastic retaining arm and a second elastic retaining arm extending in the same direction, and an elastic retaining groove is formed between the first elastic retaining arm and the second elastic retaining arm, and the first electrical connector is installed in the elastic retaining groove.
[0011] Furthermore, the motor is electrically connected to the first electrical connector via a conductive wire.
[0012] Furthermore, the arm is provided with a wire passage groove, and the conductive wire is installed in the wire passage groove.
[0013] To solve the above-mentioned technical problems, this utility model also provides a drone, including the above-mentioned arm disassembly and assembly structure.
[0014] The beneficial effects of this utility model are as follows: The arm disassembly and assembly structure and the UAV provided by this utility model have the characteristics of convenient disassembly and assembly. Through the cooperation of the plug-in part and the plug-in hole, the arm and the shell can be quickly plugged in; the direct docking of the first electrical connector and the second electrical connector ensures the instantaneous conduction of the arm motor and the control circuit, eliminating the need for additional wiring steps; after plugging in, the fastener passes through the fastening hole and the fastening part to lock it, which makes up for the lack of structural strength of the pure plug-in structure and enhances the arm's resistance to displacement in high vibration environment; the plug-in structure makes the arm an independent module, which is convenient for mass production, maintenance, replacement or upgrade. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the drone according to Embodiment 1 of this utility model;
[0016] Figure 2 This is an exploded view of the drone according to Embodiment 1 of this utility model;
[0017] Figure 3 This is an exploded view of the boom of Embodiment 1 of this utility model.
[0018] Label Explanation:
[0019] 1. Arm; 11. Insertion part; 111. Fastening part; 112. First elastic clamping arm; 113. Second elastic clamping arm; 114. Elastic clamping groove; 12. Limiting baffle; 121. Slot; 13. Mounting cylinder; 14. Protective cover; 15. Wire passage groove; 2. Housing; 21. Insertion hole; 22. Fastening hole; 23. Buckle; 3. Motor; 31. Conductive wire; 4. First electrical connector; 5. Second electrical connector; 6. Indicator light structure; 61. Light board; 62. Lamp bead; 63. Light guide. Detailed Implementation
[0020] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0021] Please refer to Figures 1 to 3 A robotic arm assembly / disassembly structure includes a housing 2, an arm 1, and a motor 3. The motor 3 is mounted on one end of the arm 1. The housing 2 has a insertion hole 21, and the other end of the arm 1 has an insertion part 11 for insertion into the insertion hole 21. The insertion part 11 has a first electrical connector 4 and a fastening part 111. The first electrical connector 4 is electrically connected to the motor 3. The insertion hole 21 has a second electrical connector 5 for electrical connection to the first electrical connector 4. The housing 2 has a fastening hole 22 and a fastener on its exterior. When the insertion part 11 is inserted into the insertion hole 21, the fastening hole 22 is aligned with the fastening part 111. The fastener passes through the fastening hole 22 and connects to the fastening part 111.
[0022] As can be seen from the above description, the beneficial effects of this utility model are as follows: the cooperation between the plug-in part 11 and the plug-in hole 21 enables the quick plug-in of the arm and the housing 2; the direct docking of the first electrical connector 4 and the second electrical connector 5 ensures the immediate conduction of the arm motor 3 and the control circuit, eliminating the need for additional wiring steps; after plugging in, the fastener passes through the fastening hole 22 and locks with the fastening part 111, making up for the lack of structural strength of the pure plug-in structure and enhancing the arm's resistance to displacement in high vibration environments; the plug-in structure makes the arm an independent module, which is convenient for mass production, maintenance, replacement or upgrade.
[0023] Furthermore, the arm 1 is also provided with an indicator light structure 6, which is electrically connected to the first electrical connector 4.
[0024] As described above, the indicator light is directly related to the status of the electrical connector. When the arm is installed in place and the electrical signal is connected, the indicator light will light up, allowing the user to intuitively determine whether the installation is successful and reducing the risk of misoperation. If the indicator light does not light up, the user can quickly troubleshoot arm insertion or circuit connection problems, shortening maintenance time.
[0025] Furthermore, the indicator light structure 6 includes a lamp board 61, an LED bead 62, and a light guide 63. The lamp board 61 is electrically connected to the first electrical connector 4. The LED bead 62 is mounted on the lamp board 61. One end of the light guide 63 is positioned opposite the LED bead 62, and the other end of the light guide 63 is exposed on the arm 1.
[0026] As described above, the light guide 63 guides the light from the LED 62 to the outside of the arm 1, so that the status can be clearly displayed even in strong light environment, improving the user interaction experience; the light panel 61 and the light guide 63 are integrated inside the arm 1 to avoid the influence of external indicator lights on the aerodynamic shape of the arm and ensure flight stability.
[0027] Furthermore, the housing 2 is provided with a buckle 23, and the arm 1 is provided with a slot 121. When the plug part 11 is inserted into the plug hole 21, the buckle 23 is engaged with the slot 121.
[0028] Furthermore, the housing 2 is provided with a slot 121, and the arm 1 is provided with a buckle 23. When the insertion part 11 is inserted into the insertion hole 21, the buckle 23 is engaged with the slot 121.
[0029] As can be seen from the above description, the cooperation between the buckle 23 and the slot 121 further enhances the structural strength when the plug-in part 11 and the plug-in hole 21 are engaged. Furthermore, the positions of the buckle 23 and the slot 121 can be set according to actual application requirements, enriching the diversity of the structure and enhancing the flexibility of the design.
[0030] Furthermore, the arm 1 is also provided with a limiting baffle 12. When the insertion part 11 is inserted into the insertion hole 21, the limiting baffle 12 covers the insertion hole 21 and abuts against the outer wall of the housing 2.
[0031] As described above, the limiting baffle 12 covers the insertion hole 21, preventing dust and rainwater from entering the interior of the housing 2 and extending the life of the electrical connector; the baffle abuts against the outer wall of the housing 2, limiting the insertion depth of the arm and avoiding excessive insertion that could cause structural damage.
[0032] Furthermore, the insertion part 11 is provided with a first elastic retaining arm 112 and a second elastic retaining arm 113 extending in the same direction, and an elastic retaining groove 114 is formed between the first elastic retaining arm 112 and the second elastic retaining arm 113, and the first electrical connector 4 is installed in the elastic retaining groove 114.
[0033] As described above, the first elastic retaining arm 112 and the second elastic retaining arm 113 form an elastic clamp, applying continuous pressure to the electrical connector to counteract poor contact caused by flight vibration; the deformation of the elastic retaining groove 114 can generate micro-friction at the contacts of the electrical connector, removing oxide layers or stains and improving the reliability of signal transmission.
[0034] Furthermore, the motor 3 is electrically connected to the first electrical connector 4 via a conductive wire 31.
[0035] As described above, the conductive wire 31 directly connects the motor 3 to the electrical connector, avoiding the long external cables found in traditional drones and reducing electromagnetic interference; moreover, the modular cable design eliminates the need for rewiring when replacing the motor 3, reducing maintenance complexity.
[0036] Furthermore, the arm 1 is provided with a wire groove 15, and the conductive wire 31 is installed in the wire groove 15.
[0037] As described above, the wire trough 15 straightens the direction of the conductive wire 31, preventing the wire from being pulled or worn during disassembly and assembly, and improving durability.
[0038] To solve the above-mentioned technical problems, this utility model also provides a drone, including the above-mentioned arm disassembly and assembly structure.
[0039] As described above, the drone adopts the aforementioned arm disassembly and assembly structure, enabling rapid replacement and upgrading of the entire arm and significantly reducing maintenance costs. It can also quickly replace dedicated arm modules (such as long-endurance and high-payload types) for different tasks (such as aerial photography and logistics), expanding the application range of the drone.
[0040] Please refer to Figures 1 to 3 The first embodiment of this utility model is as follows: A drone, the drone including an arm disassembly and assembly structure, the arm disassembly and assembly structure including a housing 2, an arm 1 and a motor 3, the motor 3 being installed at one end of the arm 1, the housing 2 having a plug-in hole 21, and the other end of the arm 1 having a plug-in part 11 for plugging into the plug-in hole 21; specifically, the arm 1 having a mounting cylinder 13, the motor 3 being installed inside the mounting cylinder 13, the output shaft of the motor 3 having blades, and the mounting cylinder 13 having a protective cover 14 for protecting the blades; the plug-in part 11 having a first electrical connector 4 and a fastening part 111, the first electrical connector 4 being electrically connected to the motor 3, the plug-in hole 21 having a second electrical connector 5 for electrically connecting to the first electrical connector 4; the housing 2 having a fastening hole 22 and a fastening part 111 on its exterior. The fastener (not shown in the figure) is used to connect the arm to the housing 21 when the plug-in part 11 is inserted into the plug-in hole 21. The fastening hole 22 is aligned with the fastening part 111. The fastener is used to pass through the fastening hole 22 and connect to the fastening part 111. Optionally, the fastener can be a bolt, screw, or pin. The type of fastener can be selected according to the actual application requirements. It is understood that the cooperation between the plug-in part 11 and the plug-in hole 21 enables quick connection between the arm and the housing 2. The direct connection between the first electrical connector 4 and the second electrical connector 5 ensures immediate conduction between the arm motor 3 and the control circuit, eliminating the need for additional wiring steps. After insertion, the fastener passes through the fastening hole 22 and locks with the fastening part 111, compensating for the insufficient structural strength of the pure plug-in structure and enhancing the arm's resistance to displacement in high-vibration environments. The plug-in structure makes the arm an independent module, facilitating mass production, maintenance, replacement, or upgrades.
[0041] Preferably, the boom 1 is further provided with an indicator light structure 6, which is electrically connected to the first electrical connector 4. The indicator light is directly associated with the status of the electrical connector. When the boom is installed in place and the electrical signal is conducted, the indicator light illuminates, allowing the user to intuitively determine whether the installation is successful and reducing the risk of misoperation. If the indicator light does not illuminate, the user can quickly troubleshoot boom insertion or circuit connection problems, shortening maintenance time. Specifically, the indicator light structure 6 includes a light board 61, LED beads 62, and a light guide 63. The light board 61 is electrically connected to the first electrical connector 4. The connection is such that the LED 62 is mounted on the light panel 61, one end of the light guide 63 is positioned opposite the LED 62, and the other end of the light guide 63 is exposed on the arm 1. It is easy to understand that the light guide 63 guides the light from the LED 62 to the outside of the arm 1, ensuring clear status display even in strong light conditions and improving the user experience. The light panel 61 and the light guide 63 are integrated inside the arm 1, avoiding the influence of external indicator lights on the aerodynamic shape of the arm and ensuring flight stability. More specifically, the light guide 63 is made of a transparent material.
[0042] In this embodiment, the housing 2 is provided with a buckle 23, and the arm 1 is provided with a slot 121. When the insertion part 11 is inserted into the insertion hole 21, the buckle 23 is engaged with the slot 121. The cooperation between the buckle 23 and the slot 121 further enhances the structural strength when the insertion part 11 and the insertion hole 21 are engaged. In addition, in some other embodiments, a slot 121 can be provided on the housing 2, and a buckle 23 can be provided on the arm 1. When the insertion part 11 is inserted into the insertion hole 21, the buckle 23 is engaged with the slot 121. The positions of the buckle 23 and the slot 121 can be set according to the actual application requirements, which enriches the diversity of the structure and enhances the flexibility of the design.
[0043] Preferably, the arm 1 is further provided with a limiting baffle 12. When the plug-in part 11 is inserted into the plug-in hole 21, the limiting baffle 12 covers the plug-in hole 21 and abuts against the outer wall of the housing 2. The limiting baffle 12 covers the plug-in hole 21 to prevent dust and rainwater from entering the interior of the housing 2 and extend the life of the electrical connector. The baffle abuts against the outer wall of the housing 2 to limit the insertion depth of the arm and avoid excessive insertion that could cause structural damage. Specifically, the slot 121 is provided at the limiting baffle 12.
[0044] Please combine Figure 3To facilitate the installation of the first electrical connector 4, the insertion portion 11 is provided with a first elastic retaining arm 112 and a second elastic retaining arm 113 extending in the same direction. An elastic retaining groove 114 is formed between the first elastic retaining arm 112 and the second elastic retaining arm 113. The first electrical connector 4 is installed in the elastic retaining groove 114. The first elastic retaining arm 112 and the second elastic retaining arm 113 form an elastic clamp, applying continuous pressure to the electrical connector to counteract poor contact caused by flight vibration. The deformation of the elastic retaining groove 114 can generate micro-friction at the contacts of the electrical connector, removing oxide layers or stains and improving the reliability of signal transmission.
[0045] Preferably, the motor 3 is electrically connected to the first electrical connector 4 via a conductive wire 31. This direct connection of the conductive wire 31 to the electrical connector avoids the lengthy external cables found in traditional drones, reducing electromagnetic interference. Furthermore, the modular cable design eliminates the need for rewiring when replacing the motor 3, reducing maintenance complexity. Specifically, the arm 1 is provided with a cable groove 15, in which the conductive wire 31 is installed. The cable groove 15 helps to organize the routing of the conductive wire 31, preventing it from being pulled or worn during assembly and disassembly, thus improving durability.
[0046] In summary, the arm assembly / disassembly structure and UAV provided by this utility model are characterized by convenient assembly / disassembly. The arm and the housing are quickly connected by the cooperation of the plug-in part and the plug-in hole; the direct docking of the first electrical connector and the second electrical connector ensures the immediate conduction of the arm motor and the control circuit, eliminating the need for additional wiring steps; after plugging, the fasteners pass through the fastening hole and fastening part to lock the connection, which makes up for the lack of structural strength of the pure plug-in structure and enhances the arm's resistance to displacement in high vibration environments; the plug-in structure makes the arm an independent module, which is convenient for mass production, maintenance, replacement or upgrade.
[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A boom assembly / disassembly structure, comprising a housing, a boom, and a motor, wherein the motor is mounted at one end of the boom, characterized in that, The housing is provided with a plug-in hole, and the other end of the arm is provided with a plug-in part, which is used to plug into the plug-in hole; the plug-in part is provided with a first electrical connector and a fastening part, the first electrical connector is electrically connected to the motor, and a second electrical connector is provided in the plug-in hole, which is used to electrically connect to the first electrical connector; the housing is provided with a fastening hole and a fastener, and when the plug-in part is inserted into the plug-in hole, the fastening hole is aligned with the fastening part, and the fastener is used to pass through the fastening hole and connect to the fastening part.
2. The arm disassembly and assembly structure according to claim 1, characterized in that, The boom is also equipped with an indicator light structure, which is electrically connected to the first electrical connector.
3. The arm disassembly and assembly structure according to claim 2, characterized in that, The indicator light structure includes a light board, LED beads, and a light guide. The light board is electrically connected to the first electrical connector. The LED beads are mounted on the light board. One end of the light guide is positioned opposite the LED beads, and the other end of the light guide is exposed on the arm.
4. The arm disassembly and assembly structure according to claim 1, characterized in that, The housing is provided with a buckle, and the arm is provided with a slot. When the plug is inserted into the plug hole, the buckle is engaged with the slot.
5. The arm disassembly and assembly structure according to claim 1, characterized in that, The housing is provided with a slot, and the arm is provided with a buckle. When the plug is inserted into the plug hole, the buckle engages with the slot.
6. The arm disassembly and assembly structure according to claim 1, characterized in that, The arm is also provided with a limiting baffle. When the plug is inserted into the plug hole, the limiting baffle covers the plug hole and abuts against the outer wall of the housing.
7. The arm disassembly and assembly structure according to claim 1, characterized in that, The plug-in portion is provided with a first elastic retaining arm and a second elastic retaining arm extending in the same direction, and an elastic retaining groove is formed between the first elastic retaining arm and the second elastic retaining arm, and the first electrical connector is installed in the elastic retaining groove.
8. The arm disassembly and assembly structure according to claim 1, characterized in that, The motor is electrically connected to the first electrical connector via a conductive wire.
9. The arm disassembly and assembly structure according to claim 8, characterized in that, The arm is provided with a wire passage groove, and the conductive wire is installed in the wire passage groove.
10. A drone, characterized in that, The arm disassembly and assembly structure includes any one of the claims 1-9 above.