Unmanned aerial vehicle arm folding lock catch with secondary anti-falling function

Abstract

The utility model discloses an unmanned aerial vehicle arm folding lock catch with a secondary anti-falling function. The unmanned aerial vehicle arm folding lock catch comprises a rack connecting piece and a folding vehicle arm set. A metal plate handle is rotationally connected to the rack connecting piece, and an abutting and supporting structure for limiting random rotation of the metal plate handle is arranged on the folding machine arm set. The folding machine arm set and the metal plate handle are further provided with lock catch structures which are matched, butted and locked. According to the four-connecting-rod locking device, firstly, reset rotation of the metal plate handle can be limited through the arrangement of the abutting and supporting structure, meanwhile, the reliability and stability of an aircraft arm in the operation process of an aircraft are guaranteed in cooperation with the secondary anti-disengaging lock catch structure, secondly, on the basis of four-connecting-rod compression trend locking, only one anti-disengaging buckle and a spring are additionally arranged, secondary locking is achieved, and the locking effect is good. The folding machine arm has the advantages that the production cost of the folding machine arm is reduced, the folding machine arm is convenient to assemble, and finally, a user only needs to press a metal plate handle to automatically lock the whole folding machine arm, so that the user can operate the folding machine arm conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of plant protection UAV accessories, in particular to a UAV arm folding lock with secondary anti-detachment function. Background Art

[0002] The development of plant protection drones has played a huge role in the development of intelligent agriculture. At present, the functions and roles of plant protection drones are becoming more and more important. In order to achieve large-scale operations, it is necessary to lengthen the arms to achieve a large-scale sowing effect.

[0003] In the prior art, by providing a folding arm, the trouble caused by the extended arm in carrying the UAV can be solved, and the wear of the arm during transportation can be avoided. When the plant protection UAV is in flight, the folded arm can be unfolded and used.

[0004] When the arm of the plant protection UAV is deployed for use, it needs to be locked to ensure that it is stably set up and used relative to the plant protection UAV in flight. Although the existing technology can meet the basic arm extension function, it lacks a locking structure, resulting in poor firmness and stability, or the secondary anti-detachment of the locking structure is achieved by adding complex parts, which increases the cost.

[0005] Based on the above defects, a drone arm folding lock with secondary anti-detachment is provided. Utility Model Content

[0006] The purpose of the utility model is to solve the above-mentioned problem and to propose a drone arm folding lock with secondary anti-detachment function.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a drone arm folding lock with secondary anti-detachment, comprising a frame connecting piece and a folding machine arm group rotatably connected to the frame connecting piece;

[0008] The frame connecting member is rotatably connected with a sheet metal handle, and the folding arm group is provided with a supporting structure for limiting the sheet metal handle from rotating at will;

[0009] The folding machine arm group and the sheet metal handle are also provided with a locking structure for cooperating with the docking and locking.

[0010] Preferably, the folding machine arm group comprises a carbon tube head rotatably connected to a frame connecting member, and a carbon tube with an organic arm is embedded and installed in the carbon tube head.

[0011] Preferably, the carbon tube head is rotatably connected to the frame connecting member via a first bolt shaft, and the sheet metal handle is rotatably connected to the frame connecting member via a second bolt shaft.

[0012] Preferably, the supporting structure comprises a connecting rod hexagonal stud rotatably connected to the outside of the carbon tube head, and the connecting rod hexagonal stud is rotatably connected to the sheet metal handle, and when the sheet metal handle rotates along the carbon tube head, the connecting rod hexagonal stud can be deformed by force.

[0013] Preferably, a support frame is fixed on the carbon tube head, and a first pin and a second pin are fixed at both ends of the connecting rod hexagonal stud respectively, the first pin is rotatably connected to the support frame, and the second pin is rotatably connected to the sheet metal handle and the connecting rod hexagonal stud at the same time.

[0014] Preferably, the locking structure includes an anti-dropout hand rotatably connected to the inner side of the sheet metal handle, a compression component that acts on the anti-dropout hand to rotate and open relative to the sheet metal handle, and a buckle component fixed on the carbon tube head and cooperating with the anti-dropout hand to limit the rotation and reset of the sheet metal handle.

[0015] Preferably, the compression assembly is a spring abutting between the sheet metal handle and the anti-tripping hand.

[0016] Preferably, the buckle assembly comprises a docking platform fixedly mounted on the carbon tube head, a stopper is fixedly mounted on the side end of the docking platform, and a buckle groove for buckling into the stopper is formed inside the anti-dropping hand.

[0017] Preferably, the stop buckle cooperates with the end face against which the anti-drop hand slides to form an arc structure, and when the anti-drop hand rotates toward the carbon tube head along with the sheet metal handle, the anti-drop hand rotates toward the sheet metal handle under the pressure of the stop buckle arc structure, and as the anti-drop hand passes over the stop buckle, the anti-drop hand rotates and resets under the action of the spring, and the stop buckle is buckled into the buckle groove.

[0018] Preferably, a buffer pad is fixedly provided on the docking platform.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0020] 1. In this application, the support structure is set to limit the resetting rotation of the sheet metal handle. At the same time, the secondary anti-detachment lock structure is used to ensure that the folding arm group of the plant protection UAV can maintain a more stable erection state during flight, thereby ensuring the reliability and stability of the arm of the aircraft during operation.

[0021] 2. In this application, the sheet metal handle adopts a low-cost sheet metal solution, and the rotating sheet metal handle shares a common axis with the anti-dropout hand. An additional spring is added that directly acts on the anti-dropout hand and the end surface of the sheet metal handle instead of the torsion spring used for the sleeve shaft, which has the effect of reducing the production cost of the equipment and facilitating the assembly of the equipment.

[0022] 3. In the present application, the user only needs to press the sheet metal handle so that the sheet metal handle rotates and folds into place relative to the carbon tube head, and the anti-drop handle automatically engages with the buckle assembly, and the entire folding arm will be automatically locked, thereby facilitating the operation of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of locking the machine arm folding lock provided in accordance with an embodiment of the utility model is shown;

[0024] Figure 2 The figure shows a schematic cross-sectional view of the unfolded machine arm folding lock provided in accordance with an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the exploded structure of the machine arm folding lock provided according to an embodiment of the utility model is shown.

[0026] Legend:

[0027] 1. Frame connector; 2. First bolt shaft; 3. Carbon tube head; 301. Support frame; 4. Carbon tube of machine arm; 5. Second bolt shaft; 6. Sheet metal handle; 7. Anti-drop handle; 701. Buckle groove; 8. First pin shaft; 9. Connecting rod hexagonal stud; 10. Second pin shaft; 11. Spring; 12. Buffer pad; 13. Docking station; 14. Buckle. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-3 The utility model provides a technical solution: a drone arm folding lock with secondary anti-detachment, comprising a frame connecting member 1 and a folding machine arm group rotatably connected to the frame connecting member 1.

[0030] The frame connector 1 is used to be fixed to the plant protection UAV. When the plant protection UAV is performing agricultural irrigation or sowing operations, the operating range of the plant protection UAV can be increased by opening the folding unit.

[0031] A sheet metal handle 6 is rotatably connected to the frame connecting member 1, and a supporting structure is provided on the folding arm assembly to limit the sheet metal handle 6 from rotating at will;

[0032] When the sheet metal handle 6 is opened to the maximum angle relative to the carbon tube head 3, the sheet metal handle 6 will remain in the open state under the action of the supporting structure. When the sheet metal handle 6 is rotated and folded relative to the carbon tube head 3, the supporting structure can limit the reset rotation of the sheet metal handle 6, so that the folding machine arm group can maintain a stable erection state relative to the frame connecting member 1.

[0033] The folding machine arm assembly and the sheet metal handle 6 are also provided with a locking structure for cooperating with the docking and locking.

[0034] When the sheet metal handle 6 is rotated and folded relative to the carbon tube head 3, the locking structure further limits the sheet metal handle 6 from resetting and rotating relative to the frame connector 1. The secondary anti-detachment locking structure ensures that the folding arm group of the plant protection UAV can maintain a more stable erection state during flight.

[0035] Specifically, Figure 1-3 As shown, the folding machine arm group includes a carbon tube head 3 rotatably connected to a frame connecting member 1, and an arm carbon tube 4 is embedded and installed in the carbon tube head 3. The folding machine arm group adopts an assembled structure, which is convenient for users to replace the arm carbon tube 4.

[0036] The carbon tube head 3 is rotatably connected to the frame connecting member 1 via a first bolt shaft 2, and the sheet metal handle 6 is rotatably connected to the frame connecting member 1 via a second bolt shaft 5. The first bolt shaft 2 uses an M8 screw, and the second bolt shaft 5 uses an M6 screw.

[0037] Specifically, Figure 1-3 As shown, the supporting structure includes a connecting rod hexagonal stud 9 rotatably connected to the outside of the carbon tube head 3, and the connecting rod hexagonal stud 9 is rotatably connected to the sheet metal handle 6. When the sheet metal handle 6 rotates along the carbon tube head 3, the connecting rod hexagonal stud 9 can be deformed by force.

[0038] The connecting rod hexagonal stud 9 is a hexagonal column structure, and has the ability to elastically recover after being deformed by compression. The frame connecting piece 1, the carbon tube head 3, the sheet metal handle 6 and the connecting rod hexagonal stud 9 form a four-bar structure.

[0039] A support frame 301 is fixed on the carbon tube head 3, and a first pin 8 and a second pin 10 are fixed at both ends of the connecting rod hexagonal stud 9 respectively. The first pin 8 is rotatably connected to the support frame 301, and the second pin 10 is rotatably connected to the sheet metal handle 6 and the connecting rod hexagonal stud 9 at the same time.

[0040] The sheet metal handle 6 adopts a low-cost sheet metal solution, and the rotating sheet metal handle 6 shares a common axis with the anti-tripping hand 7. An additional spring 11 is added that directly acts on the anti-tripping hand 7 and the end surface of the sheet metal handle 6 instead of a torsion spring used for the sleeve shaft, which has the effect of reducing the production cost of the equipment and facilitating the assembly of the equipment.

[0041] When the sheet metal handle 6 is in an expanded state relative to the carbon tube head 3, the connecting rod hexagonal stud 9 is in an uncompressed state, and the sheet metal handle 6 will also be in an expanded position at a certain angle relative to the carbon tube head 3 under the supporting action of the connecting rod hexagonal stud 9. When the user acts on the sheet metal handle 6 by pressing, since the sheet metal handle 6 and the connecting rod hexagonal stud 9 are not rotated on the same axis, as the sheet metal handle 6 rotates, the distance between the first pin 8 and the second pin 10 is first reduced, and the connecting rod hexagonal stud 9 rotatably connected between the first pin 8 and the second pin 10 will be compressed and deformed first. When the first pin 8, the second pin 10 and the second bolt shaft 5 are in the same radial distribution, the distance between the first pin 8 and the second pin 10 is the smallest, and the compression deformation of the connecting rod hexagonal stud 9 is the largest. At this time, the sheet metal handle 6 continues to be pressed, the distance between the first pin 8 and the second pin 10 will increase, and the connecting rod hexagonal stud 9 will perform a certain deformation recovery. When the sheet metal handle 6 is rotated and folded into place relative to the carbon tube head 3, the connecting rod hexagonal stud 9 will use the potential energy of its deformation recovery to support the sheet metal handle 6 through the second pin 10, so that the sheet metal handle 6 and the carbon tube head 3 maintain a relatively stable folded state.

[0042] Specifically, Figure 1-3 As shown, the locking structure includes an anti-dropout hand 7 rotatably connected to the inner side of the sheet metal handle 6, a pressing component that acts on the anti-dropout hand 7 to rotate and open relative to the sheet metal handle 6, and a buckling component fixed on the carbon tube head 3 and cooperating with the anti-dropout hand 7 to limit the rotation and reset of the sheet metal handle 6.

[0043] When the sheet metal handle 6 is rotated and folded into place relative to the carbon tube head 3, the anti-dropping buckle hand 7 will automatically engage with the buckling assembly. At this time, the entire folding arm will be locked. One side of the sheet metal handle 6 is strongly limited by the carbon tube head 3, and the other side is weakly limited under the deformation recovery potential energy provided by the connecting rod hexagonal stud 9 in a compressed state. At the same time, through the buckling of the anti-dropping buckle hand 7 and the buckling assembly, a strong limit is provided for this side of the sheet metal handle 6, further ensuring that the folding arm of the plant protection UAV remains in a stable erection state during flight operation.

[0044] The pressing component is a spring 11 abutting between the sheet metal handle 6 and the anti-tripping hand 7. The spring 11 ensures that the anti-tripping hand 7 remains in an open position in a free state, thereby facilitating the user to press the anti-tripping hand 7.

[0045] When the sheet metal handle 6 is rotated and folded into place relative to the carbon tube head 3, the anti-dropout hand 7 is elastically snapped into engagement with the snap-on assembly under the pressure of the spring 11. This elastic snap-on engagement can also remind the user whether the anti-dropout hand 7 is snapped into engagement with the snap-on assembly, thereby avoiding misoperation.

[0046] The buckle assembly includes a docking platform 13 fixed on the carbon tube head 3, a stopper 14 is fixed on the side end of the docking platform 13, and a buckle groove 701 is formed inside the anti-drop buckle hand 7 to fit the stopper 14. The stopper 14 forms an arc structure with the end surface of the anti-drop buckle hand 7 sliding against. When the anti-drop buckle hand 7 rotates toward the carbon tube head 3 with the sheet metal handle 6, the anti-drop buckle hand 7 rotates toward the sheet metal handle 6 under the action of the arc structure of the stopper 14. As the anti-drop buckle hand 7 passes over the stopper 14, the anti-drop buckle hand 7 rotates and resets under the action of the spring 11, and the stopper 14 is buckled into the buckle groove 701.

[0047] When the anti-dropout hand 7 is in the locked state, if the sheet metal handle 6 is pulled without pulling the anti-dropout hand 7, the combined force received by the anti-dropout hand 7 causes its movement trend to be in the opposite direction of the buckle release, thereby preventing the stop buckle 14 and the anti-dropout hand 7 from loosening.

[0048] A buffer pad 12 is fixedly disposed on the docking platform 13 .

[0049] The buffer pad 12 provides a buffering effect for the sheet metal handle 6 during the stop phase of the locking process, thereby preventing the docking platform 13 from being damaged due to excessive force applied by the user.

[0050] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A drone arm folding lock with secondary anti-detachment, comprising a frame connecting member (1) and a folding machine arm group rotatably connected to the frame connecting member (1), characterized in that: The frame connecting member (1) is rotatably connected to a sheet metal handle (6), and the folding machine arm group is provided with a supporting structure for limiting the sheet metal handle (6) from rotating at will; The folding machine arm assembly and the sheet metal handle (6) are also provided with a locking structure for cooperating with the docking and locking.

2. The drone arm folding lock with secondary anti-detachment according to claim 1, characterized in that: The folding machine arm group comprises a carbon tube head (3) rotatably connected to a frame connecting member (1), wherein an organic arm carbon tube (4) is embedded and installed in the carbon tube head (3).

3. The drone arm folding lock with secondary anti-detachment according to claim 2, characterized in that: The carbon tube head (3) and the frame connecting member (1) are rotatably connected via a first bolt shaft (2), and the sheet metal handle (6) and the frame connecting member (1) are rotatably connected via a second bolt shaft (5).

4. The drone arm folding lock with secondary anti-detachment according to claim 1, characterized in that: The supporting structure comprises a connecting rod hexagonal stud (9) rotatably connected to the outside of the carbon tube head (3), and the connecting rod hexagonal stud (9) is rotatably connected to the sheet metal handle (6), and when the sheet metal handle (6) rotates along the carbon tube head (3), the connecting rod hexagonal stud (9) can be deformed by force.

5. The drone arm folding lock with secondary anti-detachment according to claim 4, characterized in that: A support frame (301) is fixedly provided on the carbon tube head (3), and a first pin shaft (8) and a second pin shaft (10) are respectively fixedly provided at both ends of the connecting rod hexagonal stud (9), the first pin shaft (8) being rotatably connected to the support frame (301), and the second pin shaft (10) being rotatably connected to the sheet metal handle (6) and the connecting rod hexagonal stud (9) at the same time.

6. The drone arm folding lock with secondary anti-detachment according to claim 1, characterized in that: The locking structure comprises an anti-dropout hand (7) rotatably connected to the inner side of the sheet metal handle (6), a pressing component that acts on the anti-dropout hand (7) to rotate and open relative to the sheet metal handle (6), and a buckling component that is fixed on the carbon tube head (3) and cooperates with the anti-dropout hand (7) to limit the rotation and reset of the sheet metal handle (6).

7. The drone arm folding lock with secondary anti-detachment according to claim 6, characterized in that: The compression component is a spring (11) abutting between the sheet metal handle (6) and the anti-tripping hand (7).

8. The drone arm folding lock with secondary anti-detachment according to claim 6, characterized in that: The buckle assembly comprises a docking platform (13) fixedly mounted on the carbon tube head (3), a stopper (14) fixedly mounted on the side end of the docking platform (13), and a buckle groove (701) for buckling the stopper (14) is formed inside the anti-dropping hand (7).

9. The drone arm folding lock with secondary anti-detachment according to claim 8, characterized in that: The stopper (14) cooperates with the end surface of the anti-dropout hand (7) to slide against to form an arc surface structure. When the anti-dropout hand (7) rotates toward the carbon tube head (3) along with the sheet metal handle (6), the anti-dropout hand (7) rotates toward the sheet metal handle (6) under the action of the arc surface structure of the stopper (14). As the anti-dropout hand (7) passes over the stopper (14), the anti-dropout hand (7) rotates and resets under the action of the spring (11), and the stopper (14) is buckled into the buckle groove (701).

10. The drone arm folding lock with secondary anti-detachment according to claim 8, characterized in that: A buffer pad (12) is fixedly arranged on the docking platform (13).

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