Quickly disassembled unmanned aerial vehicle arm

CN224603241UActive Publication Date: 2026-08-07HEFEI HONGCHANG INFORMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEFEI HONGCHANG INFORMATION TECHNOLOGY CO LTD
Filing Date
2025-09-10
Publication Date
2026-08-07

AI Technical Summary

Technical Problem

[0003]目前部分机臂壳为一体成型设计,操作人员需要对损坏的机臂壳进行整体拆装更换,又因为机臂壳为细长型设计,因此机臂所用电机的电源线在穿过机臂壳时,较为不便,电源线在机臂壳中出现缠绕等情况不仅会影响拆装作业整体效率,同时还会影响电源线后续的正常使用,此外电源线在长时间保持弯折情况下使用,其寿命易受影响,后续工作人员对机臂重新拆装并对电源线更换,易对无人机的正常使用造成影响

Benefits of technology

本实用新型可对无人机机臂所损坏的相应部分进行单独更换,减少资源的浪费,此外工作人员在对本无人机机臂更换时,不仅可快速完成对电源线的铺设,同时还可减少电源线出现随意缠绕的情况,解决了目前部分无人机机臂在更换时,需要整体更换,并且在更换过程中,电源线易在机臂壳中出现缠绕等影响拆装效率以及电源线使用寿命的问题。

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Abstract

The utility model relates to unmanned plane technical field, and disclose a quick dismounting's unmanned plane machine arm, including bottom frame, still include: detachable connection in the top of bottom frame's top frame, the one side of bottom frame and top frame is detachable connection has support plate and apron respectively, fixedly connected in the top of bottom frame's light pole, the light pole sliding penetrates top frame, the both sides of top frame top are all seted up with the slide groove, the utility model can carry out the individual replacement to the corresponding part of unmanned plane machine arm damaged, reduce the waste of resources, in addition, the staff can not only complete the laying of power line quickly when replacing this unmanned plane machine arm, but also can reduce the situation that power line appears random winding, solve the problem that the present part unmanned plane machine arm needs to replace integrally when replacing, and in the replacement process, power line is easy to appear winding in the arm shell and the like influence dismounting efficiency and the service life of power line.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV arm that can be quickly assembled and disassembled. Background Technology

[0002] The drone arm is a key component connecting the rotor and the frame. Its main function is to support the rotor and maintain flight stability. The drone arm is connected to the drone body by positioning bolts, which allows the arm to be replaced separately if it is damaged, ensuring the normal use of the drone in the future.

[0003] Currently, some arm shells are designed as a single piece, requiring operators to completely disassemble and replace damaged arm shells. Because the arm shells are long and slender, it is inconvenient to pass the power cables for the motors through them. Entanglement of the power cables inside the arm shell not only affects the overall efficiency of the disassembly and assembly work but also the subsequent normal use of the power cables. Furthermore, the lifespan of the power cables is easily affected by prolonged use in a bent state. Subsequent disassembly and assembly of the arm and replacement of the power cables by staff can easily affect the normal use of the drone. Utility Model Content

[0004] The purpose of this invention is to provide a quick-assembly and disassembly drone arm to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a quick-assembly and disassembly drone arm, including a base frame, and further comprising: A top frame is detachably connected to the top of the bottom frame, and a support plate and a cover plate are detachably connected to one side of the bottom frame and the top frame, respectively; A light rod is fixedly connected to the top of the bottom frame. The light rod slides through the top frame. Slide grooves are provided on both sides of the top of the top frame. Positioning mechanisms that can move laterally along the slide grooves are installed on both sides of the top of the top frame.

[0006] Preferably, the positioning mechanism includes a movable plate slidably connected to the top of the top frame, a slider fixedly connected to the bottom of the movable plate, the surface of the slider slidably connected to the inner wall of the groove, and a locking bolt threaded through the top of the movable plate, the thread of the locking bolt penetrating the top of the top frame.

[0007] Preferably, the surface of the optical rod is provided with a groove, the surface of the movable plate is provided with a positioning groove, and the inner wall of the positioning groove is in contact with the inner wall of the groove and the top of the optical rod.

[0008] Preferably, a plurality of limiting frames are fixedly connected to the bottom of the inner wall of the support plate, and the top of the limiting frames is arc-shaped.

[0009] Preferably, the inner walls of the bottom frame and the top frame are provided with slots, and one end of the support plate and the cover plate is fixedly connected with a retaining ring, the surface of which is in contact with the inner wall of the slot.

[0010] Preferably, the top of the support plate is provided with a rectangular groove and an arc-shaped groove, and the bottom of the cover plate is fixedly connected with a rectangular plate and an arc-shaped plate. The surface of the rectangular plate is in contact with the inner wall of the rectangular groove, and the surface of the arc-shaped plate is in contact with the inner wall of the arc-shaped groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention allows for the individual replacement of damaged parts of a drone arm, reducing resource waste. Furthermore, when replacing a drone arm, staff can quickly lay out the power cable and minimize the risk of the power cable becoming tangled. This solves the problem that some drone arms currently require complete replacement, and the power cable is prone to tangling inside the arm housing during the replacement process, which affects disassembly and assembly efficiency and the lifespan of the power cable. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention with the bottom frame, top frame, support plate, and cover plate disassembled. Figure 3 This is a three-dimensional structural diagram of the present invention with the bottom frame and support plate disassembled; Figure 4 This is a three-dimensional structural diagram of the present invention with the positioning mechanism removed; Figure 5 This is a three-dimensional structural diagram of the present invention with the positioning mechanism removed and the top frame cut open. Figure 6 This is a three-dimensional structural diagram of the present invention after the movable plate on one side has been moved.

[0013] In the diagram: 1. Base frame; 2. Top frame; 3. Support plate; 4. Cover plate; 5. Slot; 6. Snap ring; 7. Rectangular slot; 8. Arc-shaped slot; 9. Rectangular plate; 10. Arc-shaped plate; 11. Limiting frame; 12. Smooth rod; 13. Groove; 14. Slide groove; 15. Positioning mechanism; 151. Moving plate; 152. Slider; 153. Locking bolt; 154. Positioning groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-6 As shown, a quick-assembly and disassembly drone arm includes a base frame 1, a top frame 2 detachably connected to the top of the base frame 1, a support plate 3 and a cover plate 4 detachably connected to one side of the base frame 1 and the top frame 2, respectively. The inner walls of both the base frame 1 and the top frame 2 have slots 5. One end of the support plate 3 and the cover plate 4 is fixedly connected to a retaining ring 6, the surface of which contacts the inner wall of the slot 5. When the retaining ring 6 is placed inside the slot 5, it can initially connect the base frame 1 and the support plate 3, as well as the top frame 2 and the cover plate 4. The bottom of the top frame 2 fits against the top of the base frame 1, at which point the two retaining rings 6 are in contact. The top of the support plate 3 has a rectangular groove 7 and an arcuate groove 8. The bottom of the cover plate 4 is fixedly connected to a rectangular plate 9 and an arcuate plate 10, the surface of the rectangular plate 9 contacting the inner wall of the rectangular groove 7, and the surface of the arcuate plate 10 contacting the inner wall of the arcuate groove 8. When the support plate 3 and the cover plate 4 are connected, the rectangular plate 9 and the rectangular groove 7 cooperate, and the arc plate 10 and the arc groove 8 cooperate, which can restrict the connection between the support plate 3 and the cover plate 4 and prevent the support plate 3 and the cover plate 4 from being misaligned. The top of the bottom frame 1 is fixedly connected to a light rod 12, which slides through the top frame 2. The surface of the light rod 12 is provided with a groove 13. When the bottom frame 1 and the top frame 2 are installed, the light rod 12 can extend to the top of the top frame 2, and the height of the bottom of the inner wall of the groove 13 is flush with the height of the top of the top frame 2. The top of the top frame 2 is provided with sliding grooves 14 on both sides. The top of the top frame 2 is provided with positioning mechanisms 15 on both sides. The positioning mechanism 15 includes a movable plate 151 that is slidably connected to the top of the top frame 2. The bottom of the movable plate 151 is fixedly connected to a slider 152, and the surface of the slider 152 is slidably connected to the inner wall of the sliding groove 14.

[0016] The slider 152, in conjunction with the slide groove 14, restricts the position of the movable plate 151, ensuring stable lateral movement of the movable plate 151. A locking bolt 153 is threaded through the top of the movable plate 151, and its thread extends through the top of the top frame 2. The locking bolt 153 fixes the position of the movable plate 151. A positioning groove 154 is formed on the surface of the movable plate 151. The inner wall of the positioning groove 154 fits against the inner wall of the groove 13 and the top of the guide rod 12. The movable plate 151 moves until the positioning groove 154 aligns with the groove 13. The contact and movable plate 151 can fix the position of the light rod 12 to ensure the stability of the connection between the bottom frame 1 and the top frame 2. Several limiting frames 11 are fixedly connected to the bottom of the inner wall of the support plate 3. The limiting frames 11 are set in pairs. The top of the limiting frame 11 is arc-shaped. Two adjacent limiting frames 11 are symmetrically arranged. The operator presses the wire harness down between two adjacent limiting frames 11. The limiting frame 11 can restrict the wire harness so that the cover plate 4 can be stably installed on the top of the support plate 3, avoiding squeezing the wire harness when the cover plate 4 is pressed down.

[0017] The motor is installed inside the bottom frame 1, and the rotor is set on the top of the top frame 2. The output shaft of the motor slides through the rotor and provides power support for the subsequent use of the rotor. The wiring harness used by the motor can be extended to the interior of the drone body through the support plate 3 and the cover plate 4. The surfaces of the support plate 3 and the cover plate 4 are provided with through grooves. The operator can use fixing bolts to pass through the through grooves to fix the support plate 3 and the cover plate 4 to the drone body, ensuring that the drone arm can be used normally in the future. This is an existing mature technology and will not be described in detail here.

[0018] It is worth noting that the technical features such as the motor and rotor proposed in this technical solution should be considered prior art. The specific structure, working principle, and possible control methods of these technical features can all adopt conventional choices in the field, and this technical solution will not elaborate further. Working principle: After the operator removes the drone arm from the main body and unscrews the locking bolt 153, the operator can move the moving plate 151 to release the contact between the positioning groove 154 and the groove 13. Then, the operator removes the top frame 2 and the cover plate 4, and the connection between the motor output shaft and the rotor is released. The operator removes the damaged support plate 3 or cover plate 4, and the retaining ring 6 is moved out from the inside of the retaining groove 5. After the operator replaces the support plate 3 or cover plate 4, the operator reinstalls the support plate 3 or cover plate 4. At this time, the rectangular plate 9 and the arc plate 10 extend into the inside of the rectangular groove 7 and the arc groove 8, respectively, and the position between the support plate 3 and the cover plate 4 is restricted. Finally, the operator re-fixes the position of the light rod 12 through the positioning mechanism 15, and the disassembly and replacement of the damaged part of the drone arm shell can be completed.

[0019] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-assembly and disassembly unmanned aerial vehicle (UAV) arm, comprising a base frame (1), characterized in that, Also includes: A top frame (2) is detachably connected to the top of the bottom frame (1), and a support plate (3) and a cover plate (4) are detachably connected to one side of the bottom frame (1) and the top frame (2), respectively. A light rod (12) is fixedly connected to the top of the bottom frame (1). The light rod (12) slides through the top frame (2). Slide grooves (14) are provided on both sides of the top of the top frame (2). Positioning mechanisms (15) that can move laterally along the slide grooves (14) are installed on both sides of the top of the top frame (2).

2. The quick-assembly and disassembly drone arm according to claim 1, characterized in that: The positioning mechanism (15) includes a movable plate (151) slidably connected to the top of the top frame (2). A slider (152) is fixedly connected to the bottom of the movable plate (151). The surface of the slider (152) is slidably connected to the inner wall of the slide groove (14). A locking bolt (153) is threaded through the top of the movable plate (151). The thread of the locking bolt (153) penetrates the top of the top frame (2).

3. The quick-assembly and disassembly drone arm according to claim 2, characterized in that: The surface of the light rod (12) is provided with a groove (13), and the surface of the moving plate (151) is provided with a positioning groove (154). The inner wall of the positioning groove (154) is in contact with the inner wall of the groove (13) and the top of the light rod (12).

4. The quick-assembly and disassembly drone arm according to claim 1, characterized in that: The bottom of the inner wall of the support plate (3) is fixedly connected with several limiting frames (11), and the top of the limiting frames (11) is arc-shaped.

5. The quick-assembly and disassembly drone arm according to claim 1, characterized in that: The inner walls of the bottom frame (1) and the top frame (2) are provided with slots (5), and one end of the support plate (3) and the cover plate (4) are fixedly connected with a retaining ring (6), the surface of the retaining ring (6) is in contact with the inner wall of the slot (5).

6. The quick-assembly and disassembly drone arm according to claim 1, characterized in that: The top of the support plate (3) is provided with a rectangular groove (7) and an arc groove (8). The bottom of the cover plate (4) is fixedly connected with a rectangular plate (9) and an arc plate (10). The surface of the rectangular plate (9) is in contact with the inner wall of the rectangular groove (7), and the surface of the arc plate (10) is in contact with the inner wall of the arc groove (8).