A unmanned aerial vehicle body structure with quick detachable rotor arms

Abstract

This invention discloses a drone fuselage structure with a quickly detachable rotor arm, relating to the installation and disassembly of drone rotor arms. It includes a drone body, with a connector sleeve fixedly installed on the outer side of the drone body fuselage. A rotor arm is inserted into the inner wall of the connector sleeve via a docking mechanism. A rotor is mounted on the outer wall of the rotor arm at the end furthest from the connector sleeve. This invention, by incorporating a locking mechanism, a hooking mechanism, and a rotating mechanism, allows for easy installation and fixation of the rotor arm with a single insertion. Disassembly is achieved with a simple turn and pull, effectively improving installation and disassembly efficiency. Furthermore, once the rotor arm is connected, the tension mechanism cannot move under force, preventing accidental unlocking due to unforeseen forces and ensuring the stability and robustness of the device during normal use.

Description

Technical Field

[0001] This invention relates to the field of drone rotor arm installation and disassembly, specifically a drone fuselage structure with a rotor arm that can be quickly installed and disassembled. Background Technology

[0002] The connection between the rotor arm of a drone and the main body of the drone is usually achieved through a plug-in locking mechanism. After the plug-in is completed, fasteners are used to secure the rotor arm in place, limiting it to its current installation position. However, under the influence of vibrations generated during long-term flight, the fasteners are prone to loosening or coming loose. In severe cases, this can cause the drone to lose balance and fall directly, posing a double risk to property and safety. Furthermore, the fastener connection method takes a lot of time to install and remove. Summary of the Invention

[0003] The purpose of this invention is to provide a drone fuselage structure with quickly detachable rotor arms in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a drone fuselage structure with a quickly detachable rotor arm, comprising a drone body, a plug-in sleeve fixedly installed on the outer side of the drone body fuselage, a rotor arm plugged into the inner wall of the plug-in sleeve via a docking mechanism, a rotor mounted on the outer wall of the rotor arm at the end away from the plug-in sleeve, a first conductive post extending into the interior of the plug-in sleeve end plate at the end of the plug-in sleeve that docks with the drone body, and a docking hole for docking with the first conductive post on the end plate of the plug-in sleeve. The rotor arm is fixedly installed with a second conductive post that is inserted into the docking hole and docked with one end of the first conductive post at one end of the inner wall of the plug sleeve. A locking mechanism is installed at one end of the inner wall of the plug sleeve. A hooking mechanism that docks with the locking mechanism is slidably connected to the inner wall of the rotor arm. An insertion port is opened at one end of the rotor arm near the locking mechanism. A tension mechanism that extends to the outer wall of the rotor arm and is slidably connected to the outer wall of the rotor arm is provided at one end of the hooking mechanism. A rotating mechanism that is rotatably connected to the tension mechanism is provided on the outer wall of the rotor arm.

[0005] As a further embodiment of the present invention: the docking mechanism includes a docking groove formed in the inner wall of the plug sleeve, and a docking block fixedly installed at one end of the outer wall of the rotor arm, the docking block being in contact with the inner wall of the docking groove.

[0006] As a further embodiment of the present invention: the locking mechanism includes two protruding rods fixedly installed on the inner wall of the plug sleeve. The two protruding rods are symmetrically distributed vertically. One end of each of the two protruding rods is provided with a receiving groove. An elastic sheet is fixedly connected to the inner wall of each receiving groove. Lock heads are connected to the sides of the upper and lower sets of elastic sheets that are far apart from each other. The ends of the upper and lower lock heads that are far apart from each other extend through to the outside of the protruding rods. The end of the lock head located outside the protruding rod is formed with a pressure-bearing slope.

[0007] As a further embodiment of the present invention: the locking mechanism further includes an extension plate fixedly installed on the side of the two lock heads that are close to each other. The vertical rod of the extension plate is located inside the receiving groove. Guide grooves are provided on both extension plates. The guide grooves include a straight groove and an inclined groove. The end of the straight groove away from the protruding rod is open. The other end of the straight groove is connected to the inclined groove. The two closed ends of the two inclined grooves are close to each other.

[0008] As a further embodiment of the present invention: the hooking mechanism includes sliding grooves formed above and below the inner wall of the rotor arm. The inner walls of the two sliding grooves are axially slidably connected with sliders. The sides of the two sliders that are close to each other are fixedly installed with fixed rods. The ends of the upper and lower fixed rods that are close to each other are fixedly installed with horizontally arranged force-bearing rods. The ends of the two force-bearing rods away from the insertion port are formed with vertical rod portions. The two vertical rod portions extend in opposite directions, and the ends of the two force-bearing rods away from the vertical rod portions are formed with protrusions extending in opposite directions. The inner wall of the protrusions is provided with a sliding mechanism. The outer wall of the sliding mechanism is vertically slidably connected with a moving arm. The inner side of the moving arm is fixedly installed with a pressing rod.

[0009] As a further embodiment of the present invention: the tension mechanism includes a sliding sleeve slidably connected to the outer wall of the rotor arm, the inner circumference of the sliding sleeve is formed with a connecting rod extending into the inner cavity of the rotor arm, the ends of the two connecting rods approaching each other are in contact with one end of the vertical part of the force-bearing rod but not inserted, the side of the connecting rod away from the sliding groove is integrally formed with an outwardly protruding sliding rod, the inside of the rotor arm is provided with a connecting groove for the sliding rod to slide, one end of the inner wall of the connecting groove is fixedly connected with a No. 1 spring connected to one end of the sliding rod, and the rotor arm is provided with a horizontal groove for the connecting rod to slide.

[0010] As a further embodiment of the present invention: the rotating mechanism includes a rotating sleeve rotatably mounted on one end of the sliding sleeve, a follower rod extending into the rotor arm is fixedly mounted on the inner circumference of the rotating sleeve, the follower rod cooperates with the docking rod to clamp the vertical part of the force-bearing rod, the rotor arm has an arc-shaped groove for the follower rod to rotate inside, and the outer walls of the sliding sleeve and the rotating sleeve are formed with alignment marks.

[0011] As a further embodiment of the present invention: the sliding mechanism includes a strip groove vertically formed inside the protrusion of the force-bearing rod, a guide rod is fixedly installed between the top and bottom ends of the inner wall of the strip groove, the guide rod is slidably connected to the sliding rod part of the moving arm, and a second spring that is sleeved with the guide rod is abutted between the bottom end of the inner wall of the strip groove and the bottom of the sliding rod part.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. By setting up locking, hooking, and rotating mechanisms, the rotor arm can be installed and fixed with a simple insertion. During disassembly, the rotor arm can be removed with a simple turn and pull, effectively improving the efficiency of installation and disassembly. Furthermore, after the rotor arm is connected, the tension mechanism cannot move under force, avoiding accidental unlocking due to unexpected force and ensuring the stability and security of the device during normal use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the rotor arm connection of the present invention;

[0016] Figure 3 This is a schematic diagram of the installation of the first conductive post of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the plug sleeve of the present invention;

[0018] Figure 5 For the present invention Figure 4 Enlarged view of a portion of point A in the middle;

[0019] Figure 6 This is a schematic diagram of the installation of the second conductive post of the present invention;

[0020] Figure 7 This is a schematic diagram of the internal structure of the rotor arm of the present invention;

[0021] Figure 8 For the present invention Figure 7 Enlarged view of a section at point B in the middle;

[0022] Figure 9 For the present invention Figure 7 Enlarged view of a section at point C;

[0023] Figure 10 This is a schematic diagram of the insertion of the plug sleeve of the present invention to one end of the rotor arm;

[0024] Figure 11For the present invention Figure 10 Enlarged view of a section at point D;

[0025] Figure 12 This is a schematic diagram of the internal structure of the sliding mechanism of the present invention.

[0026] In the diagram: 1. UAV body; 2. Connecting sleeve; 3. Rotor arm; 4. Rotor; 5. Conductive post No. 1; 6. Sliding sleeve; 7. Rotating sleeve; 8. Docking groove; 9. Protruding rod; 10. Docking hole; 11. Receiving groove; 12. Elastic sheet; 13. Lock head; 14. Extension plate; 15. Guide groove; 16. Docking block; 17. Conductive post No. 2; 18. Socket; 19. Alignment mark; 20. Horizontal groove; 21. Arc groove; 22. Spring No. 1; 23. Docking rod; 24. Sliding rod; 25. Slide groove; 26. Slider; 27. Fixed rod; 28. Force-bearing rod; 29. ​​Connecting groove; 30. Follower rod; 31. Strip groove; 32. Moving arm; 33. Extrusion rod; 34. Spring No. 2; 35. Guide rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-12 In this embodiment of the invention, a drone fuselage structure with a quickly detachable rotor arm includes a drone body 1. A connector sleeve 2 is fixedly installed on the outer side of the drone body 1. A rotor arm 3 is connected to the inner wall of the connector sleeve 2 via a docking mechanism. A rotor 4 is installed on the outer wall of the rotor arm 3 at the end away from the connector sleeve 2. A first conductive post 5 extending into the end plate of the connector sleeve 2 is installed at the end of the connector sleeve 2 that docks with the drone body 1. A docking hole 10 for docking with the first conductive post 5 is provided on the end plate of the connector sleeve 2. 3. An insertion docking hole 10 is fixedly installed on one end of the inner wall of the insertion sleeve 2, and a second conductive post 17 is docked with one end of the first conductive post 5. A locking mechanism is installed on one end of the inner wall of the insertion sleeve 2. A hooking mechanism that docks with the locking mechanism is slidably connected to the inner wall of the rotor arm 3. An insertion port 18 is opened at one end of the rotor arm 3 near the locking mechanism. A tension mechanism that extends to the outer wall of the rotor arm 3 and is slidably connected to the outer wall of the rotor arm 3 is provided at one end of the hooking mechanism. A rotating mechanism that is rotatably connected to the tension mechanism is provided on the outer wall of the rotor arm 3.

[0029] In this embodiment: First, when installing the rotor arm 3, one end of the rotor arm 3 is inserted into the inside of the plug sleeve 2 through the docking mechanism. During the insertion process, the locking mechanism passes through the plug 18 and gradually docks with the hooking mechanism until it is fully inserted. At this time, the locking mechanism limits the fully inserted rotor arm 3 and realizes the docking of the first conductive post 5 and the second conductive post 17.

[0030] When disassembling rotor arm 3, the rotating mechanism is rotated. After the rotating mechanism rotates to a preset angle, a pulling force is applied to the pulling mechanism. The pulling mechanism drives the hook mechanism to slide synchronously. The sliding synchronous mechanism pushes the locking mechanism to release the lock. After unlocking, the pulling mechanism slides to the maximum displacement distance. Therefore, the continuously applied pulling force can cause the pulling mechanism to separate rotor arm 3 from the inner wall of the plug sleeve 2. Since the second conductive post 17 is connected to rotor 4 through a wire, the circuit can be connected after plugging. The circuit can be disconnected after rotor arm 3 is pulled out.

[0031] Please refer to this carefully. Figure 4 and Figure 6 The docking mechanism includes a docking groove 8 formed on the inner wall of the plug sleeve 2, and a docking block 16 fixedly installed on one end of the outer wall of the rotor arm 3. The docking block 16 is in contact with the inner wall of the docking groove 8.

[0032] In this embodiment: when installing the rotor arm 3, one end of the rotor arm 3 is aligned with the inner wall of the plug sleeve 2, and the docking block 16 is aligned with the docking groove 8. Then the rotor arm 3 can be inserted. This ensures that the inserted rotor arm 3 drives the rotor 4 to stay in the installation position and prevents the rotor 4 from deflecting. It also ensures the docking of the first conductive post 5 and the second conductive post 17, thus ensuring the accuracy of the rotor arm 3 installation.

[0033] Please refer to this carefully. Figures 1-12The locking mechanism includes two protruding rods 9 fixedly installed on the inner wall of the plug sleeve 2. The two protruding rods 9 are symmetrically distributed vertically. One end of each of the two protruding rods 9 is provided with a receiving groove 11. An elastic piece 12 is fixedly connected to the inner wall of each receiving groove 11. Lock heads 13 are connected to the opposite sides of the upper and lower sets of elastic pieces 12. The opposite ends of the upper and lower lock heads 13 extend to the outside of the protruding rods 9, and the end of the lock head 13 located outside the protruding rods 9 is formed with a pressure-bearing slope. The locking mechanism also includes an extension plate 14 fixedly installed on the side of the two lock heads 13 that is close to each other. The vertical part of the extension plate 14 is located inside the receiving groove 11. Guide grooves 15 are provided on both extension plates 14. The guide grooves 15 include a straight groove and an inclined groove. The end of the straight groove that is away from the protruding rod 9 is open. The other end of the straight groove is connected to the inclined groove. The two closed ends of the two inclined grooves are close to each other. The hooking mechanism includes sliding grooves 25 opened on the upper and lower sides of the inner wall of the rotor arm 3. The inner walls of the two slide grooves 25 are axially slidably connected with sliders 26. The sides of the two sliders 26 that are close to each other are fixedly installed with fixed rods 27. The ends of the upper and lower fixed rods 27 that are close to each other are fixedly installed with horizontally arranged force rods 28. The ends of the two force rods 28 away from the insertion port 18 are formed with vertical rods. The two vertical rods extend in opposite directions, and the ends of the two force rods 28 away from the vertical rods are formed with protrusions extending in opposite directions. The inner wall of the protrusions is provided with a sliding mechanism. The outer wall of the sliding mechanism is vertically slidably connected with a moving arm 32. The inner side of the moving arm 32 is fixedly installed with a pressing rod 33. The sliding mechanism includes a strip groove 31 vertically opened inside the protrusion of the force rod 28. The top and bottom of the inner wall of the strip groove 31 are fixedly installed with a guide rod 35. The guide rod 35 is slidably connected with the sliding rod of the moving arm 32. The bottom of the inner wall of the strip groove 31 and the bottom of the sliding rod are abutted by a second spring 34 that is sleeved with the guide rod 35.

[0034] In this embodiment: during the insertion process of rotor arm 3 and plug sleeve 2, plug 18 gradually approaches one end of the two protruding rods 9 until they make contact. At this time, the pressure-receiving inclined surface of lock head 13 contacts the inner wall of plug 18. The pressure-receiving inclined surface transmits force to lock head 13, and lock head 13 can move into the receiving groove 11. At this time, elastic sheet 12 is compressed and deformed until lock head 13 is completely inserted into receiving groove 11.

[0035] During the above process, the protruding rod 9 drives the extension plate 14 to move closer to the pressing rod 33 until they contact each other. The fully retracted locking head 13 causes the opening of the guide groove 15 on the extension plate 14 to align with the pressing rod 33. That is, the straight groove opening of the guide groove 15 aligns with the pressing rod 33. This ensures that the pressing rod 33 is inserted into the straight groove during the docking process. As the extension plate 14 moves with the protruding rod 9, the pressing rod 33 moves from the straight groove to the inclined groove. At this time, the locking head 13 is always in the insertion port 18. Therefore, after the pressing rod 33 enters the inclined groove, the inclined groove moving with the extension plate 14 will apply a pressing force to the pressing rod 33, so that the two pressing rods 33 move along the guide through the sliding part of the moving arm 32. Slide the rod 35 to the outer wall, at which time the second spring 34 is compressed until the locking head 13 moves out of the insertion port 18. At this time, the pressing rod 33 contacts the inner wall of the closed end of the inclined groove. At this time, the elastic plate 12 resets and pushes the locking head 13 to pop out, limiting the inserted rotor arm 3. When the locking head 13 resets, it drives the extension plate 14 to reset synchronously. At this time, the second spring 34 resets synchronously, pushing the moving arm 32 and the pressing rod 33 to reset synchronously. During this process, the extension plate 14 and the pressing rod 33 are in a relatively stationary state. In this way, the tension mechanism and the rotation mechanism are not subjected to force displacement during the insertion process, and the force transmission is limited to the docking position, avoiding the easy jamming phenomenon caused by the excessive force transmission path.

[0036] Please refer to this carefully. Figures 1-12 The tensioning mechanism includes a sliding sleeve 6 slidably connected to the outer wall of the rotor arm 3. The inner circumference of the sliding sleeve 6 is formed with connecting rods 23 extending into the inner cavity of the rotor arm 3. The ends of the two connecting rods 23 that are close to each other contact but are not inserted into one end of the vertical section of the force-bearing rod 28. The side of the connecting rods 23 away from the sliding groove 25 is integrally formed with an outwardly protruding sliding rod 24. The rotor arm 3 has a connecting groove 29 inside for the sliding rod 24 to slide. One end of the inner wall of the connecting groove 29 is fixedly connected to a component that is connected to the sliding rod 24. A first spring 22 is connected to the end. A horizontal groove 20 for sliding of the docking rod 23 is provided on the rotor arm 3. The rotating mechanism includes a rotating sleeve 7 rotatably installed at one end of the sliding sleeve 6. A follower rod 30 extending into the rotor arm 3 is fixedly installed on the inner circumference of the rotating sleeve 7. The follower rod 30 cooperates with the docking rod 23 to clamp the vertical part of the force-bearing rod 28. An arc-shaped groove 21 for rotating the follower rod 30 is provided inside the rotor arm 3. Alignment marks 19 are formed on the outer walls of the sliding sleeve 6 and the rotating sleeve 7.

[0037] In this embodiment: when disassembling the rotor arm 3, first apply rotational force to the rotating sleeve 7. The rotating sleeve 7 rotates on the outer wall of the rotor arm 3 and drives the alignment mark 19 on its outer periphery to align with the alignment mark 19 on the sliding sleeve 6. At this time, the rotating sleeve 7 can drive the follower rod 30 to align with the docking rod 23. When the follower rod 30 and the docking rod 23 are aligned, the vertical part of the force-bearing rod 28 can be clamped in the middle. At this time, a pulling force can be applied to the sliding sleeve 6. The sliding sleeve 6 drives the rotating sleeve 7 to slide synchronously. The rotating sleeve 7 can drive the follower rod 30 to apply a pulling force to the vertical part of the force-bearing rod 28. At this time, the force-bearing rod 28 can drive the slider 26 to slide inside the slide groove 25 through the fixed rod 27. At this time, the docking rod 23 pushes the sliding rod 24 to slide along the inner wall of the connecting groove 29. At this time, the first spring 22 is compressed.

[0038] The sliding force rod 28 can pull the moving arm 32 and the pressing rod 33 to slide synchronously through the sliding mechanism. The pressing rod 33 can apply a pressing force to the inner wall of the inclined groove of the guide groove 15, so that the two extension plates 14 move closer to each other, thereby pulling the two locking heads 13 to move towards the inner wall of the receiving groove 11. When the pressing rod 33 moves from the inclined groove to the straight groove, the locking head 13 is completely inserted into the receiving groove 11. At this time, the first spring 22 is completely compressed, and the sliding sleeve 6 can no longer slide outward. The force continuously applied to the sliding sleeve 6 can drive the rotor arm 3 to separate from the inner wall of the plug sleeve 2.

[0039] It should be noted that after the rotor arm 3 is inserted into the connecting sleeve 2, the rotating sleeve 7 should be driven to apply rotational force. The rotating sleeve 7 drives the follower rod 30 to rotate along the arc groove 21, so that the follower rod 30 is misaligned with the vertical part of the connecting rod 23 and the force-bearing rod 28. This ensures that the sliding sleeve 6 cannot move and will not move due to accidental force on the sliding sleeve 6, thus ensuring the stability of the connection.

[0040] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A UAV fuselage structure with a quick-assembly and detachable rotor arm, comprising a UAV body (1), characterized in that, A connector sleeve (2) is fixedly installed on the outer side of the fuselage of the UAV body (1). A rotor arm (3) is inserted into the inner wall of the connector sleeve (2) through a docking mechanism. A rotor (4) is installed on the outer wall of the end of the rotor arm (3) away from the connector sleeve (2). A first conductive post (5) extending into the end plate of the connector sleeve (2) is installed at the end of the connector sleeve (2) that docks with the UAV body (1). A docking hole (10) for docking with the first conductive post (5) is opened on the end plate of the connector sleeve (2). The rotor arm (3) is inserted into the inner wall of the connector sleeve (2). A second conductive post (17) is fixedly installed and inserted into the docking hole (10) and docked with one end of the first conductive post (5). A locking mechanism is installed on one end of the inner wall of the plug sleeve (2). A hooking mechanism that docks with the locking mechanism is slidably connected to the inner wall of the rotor arm (3). An insertion port (18) is opened at one end of the rotor arm (3) near the locking mechanism. A tension mechanism that extends to the outer wall of the rotor arm (3) and is slidably connected to the outer wall of the rotor arm (3) is provided at one end of the hooking mechanism. A rotating mechanism that is rotatably connected to the tension mechanism is provided on the outer wall of the rotor arm (3).

2. The UAV fuselage structure with a quickly detachable rotor arm according to claim 1, characterized in that, The docking mechanism includes a docking groove (8) formed on the inner wall of the plug sleeve (2) and a docking block (16) fixedly installed on one end of the outer wall of the rotor arm (3), the docking block (16) being connected to the inner wall of the docking groove (8).

3. The UAV fuselage structure with a quickly detachable rotor arm according to claim 1, characterized in that, The locking mechanism includes two protruding rods (9) fixedly installed on the inner wall of the plug sleeve (2). The two protruding rods (9) are symmetrically distributed vertically. One end of each of the two protruding rods (9) is provided with a receiving groove (11). An elastic sheet (12) is fixedly connected to the inner wall of each receiving groove (11). A lock head (13) is connected to the side of each of the two sets of elastic sheets (12) that are far apart from each other. The ends of the two lock heads (13) that are far apart from each other extend through to the outside of the protruding rod (9). The end of the lock head (13) located outside the protruding rod (9) is formed with a pressure-bearing slope.

4. The UAV fuselage structure with a quickly detachable rotor arm according to claim 3, characterized in that, The locking mechanism also includes an extension plate (14) fixedly installed on the side of the two lock heads (13) close to each other. The vertical rod of the extension plate (14) is located inside the receiving groove (11). The two extension plates (14) are provided with guide grooves (15). The guide groove (15) includes a straight groove and an inclined groove. The end of the straight groove away from the protruding rod (9) is open. The other end of the straight groove is connected to the inclined groove. The two closed ends of the two inclined grooves are close to each other.

5. The UAV fuselage structure with a quickly detachable rotor arm according to claim 4, characterized in that, The hooking mechanism includes grooves (25) formed on the upper and lower inner walls of the rotor arm (3). Slider (26) is axially slidably connected to the inner walls of the two grooves (25). Fixed rods (27) are fixedly installed on the sides of the two sliders (26) that are close to each other. Horizontally arranged force rods (28) are fixedly installed at the ends of the two fixed rods (27) that are close to each other. Vertical rods are formed at the ends of the two force rods (28) that are away from the insertion port (18). The two vertical rods extend in opposite directions. Protrusions extending in opposite directions are formed at the ends of the two force rods (28) that are away from the vertical rods. A sliding mechanism is provided on the inner wall of the protrusion. A moving arm (32) slides vertically on the outer wall of the sliding mechanism. A pressing rod (33) is fixedly installed on the inner side of the moving arm (32).

6. The UAV fuselage structure with a quickly detachable rotor arm according to claim 5, characterized in that, The tension mechanism includes a sliding sleeve (6) slidably connected to the outer wall of the rotor arm (3). The inner circumference of the sliding sleeve (6) is formed with a connecting rod (23) extending into the inner cavity of the rotor arm (3). The two connecting rods (23) are close to each other at one end and contact one end of the vertical rod of the force rod (28) but not inserted. The side of the connecting rod (23) away from the slide groove (25) is integrally formed with a sliding rod (24) protruding outward. The rotor arm (3) is provided with a connecting groove (29) for the sliding rod (24) to slide. One end of the inner wall of the connecting groove (29) is fixedly connected with a No. 1 spring (22) connected to one end of the sliding rod (24). The rotor arm (3) is provided with a horizontal groove (20) for the connecting rod (23) to slide.

7. The UAV fuselage structure with a quickly detachable rotor arm according to claim 6, characterized in that, The rotating mechanism includes a rotating sleeve (7) rotatably mounted on one end of the sliding sleeve (6). A follower rod (30) extending into the rotor arm (3) is fixedly mounted on the inner circumference of the rotating sleeve (7). The follower rod (30) cooperates with the docking rod (23) to clamp the vertical part of the force-bearing rod (28). An arc-shaped groove (21) for the follower rod (30) to rotate is opened inside the rotor arm (3). Alignment marks (19) are formed on the outer walls of the sliding sleeve (6) and the rotating sleeve (7).

8. The UAV fuselage structure with a quickly detachable rotor arm according to claim 5, characterized in that, The sliding mechanism includes a vertically formed groove (31) inside the protrusion of the force-bearing rod (28). A guide rod (35) is fixedly installed between the top and bottom of the inner wall of the groove (31). The guide rod (35) is slidably connected to the sliding rod of the moving arm (32). A second spring (34) that is sleeved with the guide rod (35) abuts between the bottom of the inner wall of the groove (31) and the bottom of the sliding rod.

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