Unmanned aerial vehicle arm with quick release structure and unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle arm with a quick-release structure and an unmanned aerial vehicle. The quick-release function is achieved through an insertion connection mode of an insertion connection barrel and a butt joint, and a reset spring is used for pushing a wedge-shaped sliding block, so that the outer side face of the wedge-shaped sliding block can abut against the inner wall of the insertion connection barrel; close fit between the insertion cylinder and the butt joint is achieved, and the connection reliability is ensured. Additional locking protection is provided through the lock catch mechanism, and the arms are prevented from falling off accidentally in the flying process; according to the unmanned aerial vehicle arm, rapid disassembly of the vehicle arm is achieved through the pushing mechanism, operation is easy and convenient, and stable connection between the whole unmanned aerial vehicle arm and the unmanned aerial vehicle body can be achieved through mutual cooperation between the lock catch mechanism and the wedge-shaped sliding block. Automatic connection and disconnection of electrical connection are achieved through cooperation of the connector male seat and the connector female seat, and the use safety is improved. State detection of electrical connection is achieved through cooperation of the Hall induction switch and the magnet, and flight safety is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicles, and in particular to an unmanned aerial vehicle arm with a quick-release structure and an unmanned aerial vehicle. BACKGROUND

[0002] As an important aerial device, unmanned aerial vehicles have been widely used in aerial photography, surveying and mapping, agricultural plant protection, emergency rescue and other fields. In the use process of unmanned aerial vehicles, the existing connection methods of unmanned aerial vehicle arms mostly adopt bolt fixation or simple plug-in structures. These plug-in structures have problems such as inconvenience in disassembly and assembly, poor connection reliability and the like in the process of disassembly and assembly of the arms.

[0003] The unmanned aerial vehicle with quick-release arms has advantages such as convenient storage and maintenance, replaceable arms and the like. However, in the unmanned aerial vehicle with quick-release arms, there is a gap at the connection between the arm and the main body of the unmanned aerial vehicle, which causes the arm to be loose, thereby affecting the flight performance of the unmanned aerial vehicle, and the interference fit of the conductive terminal causes difficulty in pulling out operation. SUMMARY

[0004] In order to solve the above technical problems, the present application provides an unmanned aerial vehicle arm with a quick-release structure, which is installed on a docking head on the outer periphery of the main body of the unmanned aerial vehicle. The unmanned aerial vehicle arm comprises an arm body and a plug-in barrel provided on one end of the arm body. The outer wall between the plug-in barrel and the docking head is connected through a lock catch mechanism, and further comprises a sliding groove provided on the docking head; a wedge-shaped sliding block slidingly installed in the sliding groove; a reset spring provided in the sliding groove, one end of the reset spring being connected with the end of the sliding groove, and the other end of the reset spring being in abutment with one end of the wedge-shaped sliding block corresponding to the reset spring, the reset spring being capable of pushing the wedge-shaped sliding block to abut against the inner wall of the plug-in barrel; a pushing mechanism installed on the outer wall of the docking head opposite to the lock catch mechanism, the pushing mechanism being capable of pushing the plug-in barrel out of the docking head; when the pushing mechanism is in a position not pushing the plug-in barrel out, at least part of the pushing mechanism is blocked or abutted on the outside of the plug-in barrel to limit the movement of the plug-in barrel relative to the docking head.

[0005] In some possible embodiments, an outer end of the docking head is provided with a pyramid platform, the plug-in barrel is provided with a tapered barrel part matched with the pyramid platform, the sliding groove is provided on the outer wall of the pyramid platform, the sliding direction of the wedge-shaped sliding block is parallel to the central axis direction of the pyramid platform, an abutment inclined surface is provided on the wedge-shaped sliding block, the abutment inclined surface is capable of abutting against the inner wall of the plug-in barrel, and the taper of the abutment inclined surface is equal to the taper of the inner wall of the tapered barrel part.

[0006] In some possible embodiments, the sliding groove is provided with a limiting rail along both sides in the length direction, the wedge-shaped sliding block is provided with at least one limiting post on both sides corresponding to the limiting rails, and the end of all the limiting posts is provided with a reverse buckle matched with the limiting rail on the side close to the limiting rail, and the reverse buckle and the bottom surface of the limiting rail are provided with a movable gap, and the end of the reverse buckle is provided with a slope on the outer side.

[0007] In some possible embodiments, the wedge-shaped sliding block is provided with a mounting block, the mounting block is provided with a limiting hole, and the one end of the reset spring is clamped in the limiting hole.

[0008] In some possible embodiments, the pushing mechanism comprises a locking bolt and a swing wrench, one end of the swing wrench is provided with a swing hole, the locking bolt is movably arranged through the swing hole, the swing wrench is rotatably locked on the outer wall of the one side of the butt joint opposite to the locking mechanism, the swing wrench can rotate around the locking bolt, one end of the swing wrench is provided with a pushing block, the pushing block can abut against the end surface of the plug-in barrel, when the pushing block does not contact with the end surface of the plug-in barrel, the movable end of the swing wrench is blocked or abutted on the outer side of the plug-in barrel to limit the movement of the plug-in barrel relative to the butt joint.

[0009] In some possible embodiments, the swing wrench comprises a swing arm and a rotating part, the swing hole is arranged on the rotating part, and one end of the swing arm is connected with the rotating part, the pushing block is arranged on the area of the rotating part close to the swing arm, and the outer periphery of the rotating part is provided with an arc-shaped limiting groove, and the outer wall of the butt joint is provided with a limiting block matched with the arc-shaped limiting groove, when the pushing block does not contact with the end surface of the plug-in barrel, the swing arm is blocked on the outer side of the plug-in barrel to limit the movement of the plug-in barrel relative to the butt joint, or the side part of the swing arm towards the plug-in barrel can abut against the outer side of the plug-in barrel.

[0010] In some possible embodiments, the locking mechanism comprises an arc-shaped swing block and a locking block, the outer wall of the butt joint is provided with a hinged seat, one end of the arc-shaped swing block is hinged with the hinged seat, the locking block is provided with a mounting groove, the other end of the arc-shaped swing block is rotatably arranged in the mounting groove through a rotating shaft, the outer wall of the end of the plug-in barrel is provided with a hook block, and one end of the locking block can be clamped in the groove of the hook block to realize the relative locking of the butt joint and the plug-in barrel.

[0011] In some possible embodiments, the outer end of the butt joint is provided with a connector female seat, the plug-in barrel is provided with a connector male seat matched with the connector female seat, and the outer periphery of the connector male seat is provided with an elastic boss abutting against the end surface of the outer end of the butt joint.

[0012] In some possible embodiments, a Hall induction switch is arranged in the counter connector, a magnet adapted to the Hall induction switch is arranged on the back of the arc-shaped swing block on the lock catch mechanism, and the Hall induction switch can control the on-off of the connector male seat and the connector female seat.

[0013] The application also provides a UAV comprising the UAV arm with the quick release structure according to the above embodiments.

[0014] Compared with the prior art, the UAV arm and the UAV of the application realize the quick release function through the plug-in mode of the plug-in barrel and the counter connector, the reset spring pushes the wedge-shaped slide block, so that the outer side surface of the wedge-shaped slide block can abut against the inner wall of the plug-in barrel, the plug-in barrel and the counter connector are tightly matched, and the connection reliability is ensured. The lock catch mechanism provides additional locking protection to prevent the arm from accidentally falling off during flight. The push mechanism realizes quick disassembly of the arm, the operation is simple, and the mutual cooperation between the lock catch mechanism and the wedge-shaped slide block can realize stable connection between the entire quick release arm and the UAV body. In addition, the cooperation of the connector male seat and the female seat realizes automatic on-off of the electrical connection, improves the use safety, and realizes state detection of the electrical connection through the cooperation of the Hall induction switch and the magnet, ensuring flight safety. The overall structure is reasonably designed, convenient to disassemble and assemble, reliable in connection, and suitable for various UAV application scenarios. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 Structure diagram of the UAV arm and the UAV provided by the embodiments of the application Figure 1 Figure 2 Structure diagram of the UAV arm and the UAV provided by the embodiments of the application Figure 2 Figure 3 Partial structure explosion diagram of the UAV arm and the UAV provided by the embodiments of the application Figure 4 Structure diagram of the cooperation of the plug-in barrel and the counter connector provided by the embodiments of the application Figure 5 Sectional structure diagram of the cooperation of the plug-in barrel and the counter connector provided by the embodiments of the application Figure 6 ​​The exploded view of the plug-in barrel cooperating with the butt joint provided by the embodiment of the present application.

[0017] Reference signs: The unmanned aerial vehicle arm 100, the arm body 110, the plug-in barrel 120, the tapered barrel part 121, the connector male seat 122, the elastic boss 123, the driving motor 130, the propeller 140, the hook block 150; The unmanned aerial vehicle body 200, the butt joint 210, the sliding groove 211, the pyramid table 212, the limiting rail 213, the connector female seat 214, the wedge-shaped sliding block 220, the abutting inclined surface 221, the limiting column 222, the reverse buckle 223, the slope 224, the mounting block 225, the limiting hole 226, the reset spring 230, the limiting block 240, the Hall induction switch 250; The lock catch mechanism 300, the arc-shaped swing block 310, the lock block 320, the hinged seat 330, the mounting groove 340, the magnet 350; The push mechanism 400, the locking bolt 410, the swing wrench 420, the swing arm 421, the rotating part 422, the arc-shaped limiting groove 423, the swing hole 430, the push block 440. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0019] Reference Figures 1 to 6As shown, the unmanned aerial vehicle is provided, in particular, an unmanned aerial vehicle arm with a quick release structure is provided, comprising an unmanned aerial vehicle arm 100, installed on the docking head 210 of the outer periphery of the unmanned aerial vehicle main body 200. The unmanned aerial vehicle arm 100 comprises an arm body 110, a plug-in barrel 120 arranged on one end of the arm body 110 and a driving motor 130 arranged on the other end of the arm body 110, the plug-in barrel 120 is detachably inserted into the docking head 210, and the output end of the driving motor 130 is fixedly connected with the propeller 140; the outer wall between the plug-in barrel 120 and the docking head 210 is connected through the lock catch mechanism 300, the sliding groove 211 is arranged on the docking head 210, the wedge-shaped sliding block 220 is slidably arranged in the sliding groove 211, the reset spring 230 is arranged in the sliding groove 211, one end of the reset spring 230 is connected with the end of the sliding groove 211, and the other end is abutted with the corresponding end of the wedge-shaped sliding block 220, the reset spring 230 can push the wedge-shaped sliding block 220 to abut against the inner wall of the plug-in barrel 120, the outer wall on the side opposite to the lock catch mechanism 300 of the docking head 210 is provided with the push mechanism 400, and the push mechanism 400 can push the plug-in barrel 120 out of the docking head 210; when the push mechanism 400 is in a position not pushing the plug-in barrel 120 out, at least part of the area is blocked or abutted on the outside of the plug-in barrel 120 to limit the movement of the plug-in barrel 120 relative to the docking head 210.

[0020] Specifically, the unmanned aerial vehicle main body 200 is made of light material (such as carbon fiber or aviation aluminum), adopts a conventional unmanned aerial vehicle body module, and the specific structure is prior art, which is not described in detail herein. The outer periphery of the unmanned aerial vehicle main body 200 is provided with a plurality of docking heads 210 for mounting a plurality of unmanned aerial vehicle arms 100, and four docking heads 210 are arranged in the embodiment. The arm body 110 of the unmanned aerial vehicle arm 100 is a hollow structure, and the inside can be arranged with components such as wires. The cooperation of the plug-in barrel 120 and the docking head 210 adopts a conical surface structure to ensure accurate positioning of the connection. The driving motor 130 is a brushless motor connected with the flight control system of the unmanned aerial vehicle main body 200 through wires.

[0021] The unmanned aerial vehicle arm of the present application realizes the close connection of the plug-in barrel 120 and the docking head 210 through the cooperation of the wedge-shaped sliding block 220 and the reset spring 230, and ensures that it will not loosen in the vibration environment of flight. The lock catch mechanism 300 provides additional mechanical locking to prevent the unmanned aerial vehicle arm 100 from falling off accidentally. The push mechanism 400 realizes the quick disassembly of the unmanned aerial vehicle arm 100, improves the maintenance efficiency. The overall structure design is ingenious, which not only ensures the reliability of the connection, but also realizes the function of quick disassembly.

[0022] Referring to Figure 3 , Figure 5 and Figure 6In order to better position and dock, and at the same time avoid rotation of the insertion barrel 120 relative to the docking head 210, the outer end of the docking head 210 is provided with a pyramid platform 212, the insertion barrel 120 is provided with a tapered barrel portion 121 matched with the pyramid platform 212, a sliding groove 211 is arranged on the outer wall of the pyramid platform 212, the sliding direction of the wedge-shaped sliding block 220 is parallel to the central axis direction of the pyramid platform 212, an abutting inclined surface 221 is arranged on the wedge-shaped sliding block 220, the abutting inclined surface 221 can abut against the inner wall of the insertion barrel 120, and the taper of the abutting inclined surface 221 is equal to the taper of the inner wall of the tapered barrel portion 121. Such a design enables the wedge-shaped sliding block 220 to tightly fit the inner wall of the insertion barrel 120 under the action of the reset spring 230, so that a larger friction force is generated, and the unmanned aerial vehicle arm 100 is prevented from loosening during flight. The cooperation of the pyramid platform 212 and the tapered barrel portion 121 ensures the accuracy of the centering of the insertion barrel 120 and the docking head 210, facilitating quick positioning during installation. In addition, the outer periphery of the pyramid platform 212 and the inner wall of the tapered barrel portion 121 are both tapered structures, which facilitates the abutting of the wedge-shaped sliding block 220 to strengthen the connection or the contraction of the wedge-shaped sliding block 220 to reduce the difficulty of pulling out.

[0023] Referring to Figure 3 , Figure 5 and Figure 6 , in the above improved embodiment, in order to ensure the normal sliding and position limitation of the wedge-shaped sliding block 220, and avoid its side deviation or deflection when subjected to the force of the insertion barrel 120, the sliding groove 211 is provided with a limiting rail 213 on both sides along the length direction, the wedge-shaped sliding block 220 is provided with at least one limiting column 222 on both sides, and the end of all the limiting columns 222 close to the side of the limiting rail 213 is provided with a reverse buckle 223 matched with the limiting rail 213. There is a clearance between the reverse buckle 223 and the bottom surface of the limiting rail 213, and the end of the reverse buckle 223 is provided with a slope 224 on the outer side surface. The cooperation of the limiting rail 213 and the limiting column 222 ensures that the wedge-shaped sliding block 220 can only move in the preset direction in the sliding groove 211 and cannot be deflected. The reverse buckle 223 prevents the wedge-shaped sliding block 220 from being pulled out of the sliding groove 211, can bear the force transmitted by the insertion barrel 120, and the slope 224 facilitates the guidance during installation and facilitates the buckling of the wedge-shaped sliding block 220 into the sliding groove 211.

[0024] Referring to Figure 6 , in the above embodiment, in order to facilitate the installation of the reset spring 230, the wedge-shaped sliding block 220 is provided with a mounting block 225, the mounting block 225 is provided with a limiting hole 226, and the corresponding end of the reset spring 230 is clamped in the limiting hole 226. The limiting hole 226 positions the corresponding end of the reset spring 230, prevents it from deviating, and ensures that the spring force always acts in the preset direction.

[0025] Referring to Figures 4 to 6, the pushing mechanism 400 comprises a locking bolt 410 and a swing wrench 420, one end of the swing wrench 420 is provided with a swing hole 430, the locking bolt 410 passes through the swing hole 430 and locks the swing wrench 420 on the outer wall of the butt joint 210 opposite to the locking buckle mechanism 300, and the swing wrench 420 can rotate around the locking bolt 410; one end of the swing wrench 420 provided with a pushing block 440, the pushing block 440 can abut against the end face of the plug-in barrel 120; when the pushing block 440 is not in contact with the end face of the plug-in barrel 120, the movable end of the swing wrench 420 is blocked or abutted on the outside of the plug-in barrel 120 to limit the movement of the plug-in barrel 120 relative to the butt joint 210.

[0026] Specifically, the locking bolt 410 not only plays the role of a hinge shaft, but also can limit the swing wrench 420. When it is necessary to disassemble the unmanned aerial vehicle arm 100, the swing wrench 420 can rotate around it, so that the pushing block 440 abuts against the end face of the plug-in barrel 120, and the plug-in barrel 120 can be pushed out of the butt joint 210 by continuing to swing. In the non-working state, the swing wrench 420 is reset, and its movable end is blocked on the outside of the plug-in barrel 120 to prevent the unmanned aerial vehicle arm 100 from falling off accidentally and play a limiting role. Further, the locking bolt 410 can directly lock the relative position of the swing wrench 420 and the butt joint 210, that is, the swing wrench 420 is fixed and locked by tightening the locking bolt 410, and the locking bolt 410 is loosened when the plug-in barrel 120 needs to be pushed.

[0027] In the above embodiment, the swing wrench 420 comprises a swing arm 421 and a rotating part 422, the swing hole 430 is arranged on the rotating part 422, and one end of the swing arm 421 is connected with the rotating part 422; the pushing block 440 is arranged on the region of the rotating part 422 close to the swing arm 421; an arc-shaped limiting groove 423 is arranged on the outer periphery of the rotating part 422, and a limiting block 240 adapted to the arc-shaped limiting groove 423 is arranged on the outer wall of the butt joint 210; when the pushing block 440 is not in contact with the end face of the plug-in barrel 120, the swing arm 421 is blocked on the outside of the plug-in barrel 120 to limit the movement of the plug-in barrel 120 relative to the butt joint 210, or the side part of the swing arm 421 towards the plug-in barrel 120 can abut against the outside of the plug-in barrel 120.

[0028] The cooperation of the arc-shaped limiting groove 423 and the limiting block 240 limits the swing range of the swing wrench 420, ensures that it moves within a preset angle, and avoids excessive swing from damaging other components. The swing arm 421 in the reset state serves as an additional safety mechanism to prevent the unmanned aerial vehicle arm 100 from falling off accidentally.

[0029] Again referring to Figures 1 to 5The locking mechanism 300 comprises an arc-shaped swing block 310 and a locking block 320, a hinged seat 330 is arranged on the outer wall of the adapter 210, one end of the arc-shaped swing block 310 is hinged to the hinged seat 330, a mounting groove 340 is arranged on the locking block 320, the other end of the arc-shaped swing block 310 is rotatably mounted in the mounting groove 340 through a rotating shaft, a hook block 150 is arranged on the outer wall of the end of the insertion barrel 120, and one end of the locking block 320 can be clamped in the groove of the hook block 150 to realize the relative locking of the adapter 210 and the insertion barrel 120.

[0030] The arc-shaped structure of the arc-shaped swing block 310 can adapt to the matching angle of the insertion barrel 120 and the adapter 210 during locking, thereby improving the locking adaptability. The cooperation of the locking block 320 and the hook block 150 forms reliable mechanical locking, so that the arm cannot be loosened due to vibration during flight. During installation, the locking can be completed by clamping the locking block 320 into the groove of the hook block 150; during disassembly, the locking can be released by pulling the locking block 320 outward.

[0031] Referring to Figure 5 In order to realize the electrical connection between the unmanned aerial vehicle body 200 and the unmanned aerial vehicle arm 100, a connector female seat 214 is arranged on the outer end of the adapter 210, a connector male seat 122 adapted to the connector female seat 214 is arranged in the insertion barrel 120, and an elastic boss 123 abutting against the outer end surface of the adapter 210 is arranged on the outer periphery of the connector male seat 122.

[0032] The cooperation of the connector male seat 122 and the connector female seat 214 realizes the electrical connection between the unmanned aerial vehicle arm 100 and the unmanned aerial vehicle body 200, and transmits power and control signals. The elastic boss 123 is made of rubber or silicone material, which is compressed and deformed during insertion, plays a sealing and dustproof role, and provides a certain pre-tightening force to ensure the electrical connection reliability of the connector male seat 122 and the female seat 214.

[0033] Referring to Figure 5 In the above embodiment, a Hall induction switch 250 is arranged in the adapter 210, and a magnet 350 adapted to the Hall induction switch 250 is arranged on the back surface of the arc-shaped swing block 310 of the locking mechanism 300, and the Hall induction switch 250 can control the on-off of the connector male seat 122 and the connector female seat 214.

[0034] The cooperation of the Hall induction switch 250 and the magnet 350 realizes linkage control of the mechanical locking state and the electrical connection state. Only when the lock catch mechanism 300 is completely locked, the magnet 350 is away from the Hall induction switch 250, and the electrical connection is connected; when the lock catch mechanism 300 is not completely locked, the structure composed of the arc-shaped swing block 310 and the lock block 320 will naturally sag due to gravity, so that the magnet 350 is close to the Hall induction switch 250 and triggers the Hall induction switch 250, at this time, the electrical connection between the connector male seat 122 and the connector female seat 214 remains in a disconnected state, preventing power-on in the case of unreliable connection, and improving the safety of the use of the unmanned aerial vehicle.

[0035] In actual use, when the unmanned aerial vehicle arm 100 is installed, the spigot 120 is first inserted into the butt joint 210, and the cooperation of the pyramid table 212 and the conical cylinder part 121 ensures accurate centering. During the insertion process, the wedge-shaped sliding block 220 is ejected outward under the action of the return spring 230, abutting against the inner wall of the spigot 120, forming a preliminary fixation. Then the lock block 320 of the lock catch mechanism 300 is clamped into the groove of the hook block 150, completing the mechanical locking. At this time, the magnet 350 on the arc-shaped swing block 310 is away from the Hall induction switch 250, and the electrical connection is automatically connected. Finally, the swing wrench 420 is reset, and its movable end is blocked outside the spigot 120, serving as an additional limiting insurance.

[0036] When the arm is disassembled, the locking bolt 410 is first loosened, and then the swing wrench 420 is swung to make the push block 440 abut against the end face of the spigot 120, and finally the unmanned aerial vehicle arm 100 is pushed out. At the same time, the lock catch mechanism 300 is unlocked, the magnet 350 is close to the Hall induction switch 250, and the electrical connection is automatically disconnected, ensuring the safety of operation. The worker can directly pull out the unmanned aerial vehicle arm 100 from the butt joint 210, or push out the unmanned aerial vehicle arm 100 from the butt joint 210 through the swing wrench 420, realizing labor-saving disassembly.

[0037] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any change or replacement within the technical scope disclosed by the present application should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A drone arm with a quick-release structure, mounted on a docking head on the outer periphery of a drone body, the drone arm comprising an arm body and a connector sleeve disposed at one end of the arm body, wherein the outer walls of the connector sleeve and the docking head are connected by a locking mechanism, characterized in that, A sliding groove is provided on the mating head; A wedge-shaped slider is slidably mounted within the sliding groove; A reset spring is provided in the sliding groove. One movable end of the reset spring is connected to the end of the sliding groove, and the other end abuts against the end of the wedge-shaped slider. The reset spring can push the wedge-shaped slider to press against the inner wall of the insertion cylinder. A pushing mechanism is installed on the outer wall of the side of the connector opposite to the locking mechanism. The pushing mechanism can push the plug tube out of the connector. When the pushing mechanism is not in the position of pushing out the plug tube, at least a part of the plug tube is blocked or pressed against the outside of the plug tube to restrict the movement of the plug tube relative to the connector.

2. The UAV arm with a quick-release structure according to claim 1, characterized in that, The outward end of the connector is provided with a truncated pyramid, the insertion tube is provided with a conical part adapted to the truncated pyramid, the sliding groove is provided on the outer wall of the truncated pyramid, the sliding direction of the wedge slider is parallel to the central axis of the truncated pyramid, the wedge slider is provided with an abutting inclined surface, the abutting inclined surface can abut against the inner wall of the insertion tube, and the taper of the abutting inclined surface is equal to the taper of the inner wall of the conical part.

3. A drone arm with a quick-release structure according to claim 1 or 2, characterized in that, The sliding groove is provided with limiting rails on both sides along its length, and the wedge-shaped slider is provided with at least one limiting post on each side. The end of all the limiting posts is provided with a buckle that cooperates with the limiting rail on the side near the limiting rail. There is an movable gap between the buckle and the bottom surface of the limiting rail, and a ramp is provided on the outer side of the end of the buckle.

4. A drone arm with a quick-release structure according to claim 1 or 2, characterized in that, The wedge-shaped slider is provided with a mounting block, and the mounting block has a limiting hole. One end of the return spring is fitted into the limiting hole.

5. A drone arm with a quick-release structure according to claim 1, characterized in that, The pushing mechanism includes a locking bolt and a swing wrench. One end of the swing wrench has a swing hole, through which the locking bolt moves to rotatably lock the swing wrench onto the outer wall of the connector opposite to the locking mechanism. The swing wrench can rotate around the locking bolt. The swing end of the swing wrench has a pushing block that can abut against the end face of the connector. When the pushing block is not in contact with the end face of the connector, the movable end of the swing wrench blocks or presses against the outside of the connector to restrict the movement of the connector relative to the connector.

6. A drone arm with a quick-release structure according to claim 5, characterized in that, The swing wrench includes a swing arm and a rotating part. The swing hole is disposed on the rotating part, and one end of the swing arm is connected to the rotating part. The push block is disposed on the area of ​​the rotating part near the swing arm. An arc-shaped limiting groove is disposed on the outer periphery of the rotating part, and a limiting block adapted to the arc-shaped limiting groove is disposed on the outer wall of the connector. When the push block does not contact the end face of the plug tube, the swing arm blocks the outside of the plug tube to restrict the movement of the plug tube relative to the connector, or the side portion of the swing arm facing the plug tube can press against the outer side of the plug tube.

7. A drone arm with a quick-release structure according to claim 1, characterized in that, The locking mechanism includes an arc-shaped swing block and a locking block. A hinge seat is provided on the outer wall of the connector. One end of the arc-shaped swing block is hinged to the hinge seat. The locking block is provided with a mounting groove. The other end of the arc-shaped swing block is rotatably mounted in the mounting groove via a rotating shaft. A hook block is provided on the outer wall of the plug tube end. One end of the locking block can be engaged in the groove of the hook block to achieve relative locking of the connector and the plug tube.

8. A drone arm with a quick-release structure according to claim 1, characterized in that, A female connector is provided on the outward end of the connector, and a male connector adapted to the female connector is provided inside the plug tube. An elastic boss is provided on the outer periphery of the male connector to abut against the outward end face of the connector.

9. A drone arm with a quick-release structure according to claim 8, characterized in that, A Hall effect sensor switch is installed inside the connector, and a magnet adapted to the Hall effect sensor switch is provided on the back of the arc-shaped swing block on the locking mechanism. The Hall effect sensor switch can control the on / off state of the male connector and the female connector.

10. A drone, characterized in that, Includes the drone arm with a quick-release structure as described in any one of claims 1 to 9.

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