Rotor wing folding mechanism and unmanned aerial vehicle

Abstract

The utility model discloses a rotor wing folding mechanism and an unmanned aerial vehicle. The rotor wing folding mechanism comprises a base plate, a support assembly and a driving assembly. A shaft column and a lock column are arranged on the base plate; the support assembly comprises a first machine arm and a second machine arm which are rotationally connected with the shaft column, lock holes are formed in the first machine arm and the second machine arm, and the lock column can be connected with the two lock holes in an inserted mode so that the expanded first machine arm and the expanded second machine arm can be synchronously locked to the base plate. The driving assembly comprises two motors and two propellers, the two motors are installed on the first vehicle arm and the second vehicle arm correspondingly, and the two propellers are installed on output shafts of the two motors correspondingly; the unmanned aerial vehicle comprises a vehicle body and one or two rotor wing folding mechanisms, if one rotor wing folding mechanism is arranged, a base plate of the rotor wing folding mechanism needs to be installed in the middle of the vehicle body, and two sets of support assemblies are symmetrically arranged on the two sides of the base plate; if two substrates are arranged, the two substrates need to be symmetrically mounted on the two sides of the machine body; the structure is compact, the use of accessories can be reduced, and the light weight of the unmanned aerial vehicle is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of unmanned aerial vehicles, and in particular relates to a rotor folding mechanism and a unmanned aerial vehicle. Background Art

[0002] The rotors of conventional flying drones cannot be folded, occupying a large space, and are not convenient for indoor placement or outdoor carrying. For this reason, the utility model patent with application number 202222742765.5 proposes a lightweight folding drone, which rotatably mounts multiple arms on the fuselage plate, so that multiple rotors (consisting of arms, motors and propellers) can be folded and expanded, making it convenient for indoor placement and outdoor carrying. In addition, multiple locking mechanisms are set on the fuselage plate to lock the multiple arms after expansion, thereby improving the stability of the rotor.

[0003] However, in actual use, it was found that since each arm is independently arranged, multiple locking mechanisms need to be set accordingly. The locking mechanism has a complex structure and requires many accessories. Not only is the cost high, but it also increases the overall weight of the drone, making it difficult to achieve lightweight. Therefore, it is necessary to design a new rotor folding mechanism and drone to solve this problem. Utility Model Content

[0004] Technical issues solved

[0005] The utility model provides a rotor folding mechanism and a UAV, which have a compact structure and can reduce the use of accessories, thereby achieving lightweighting of the UAV.

[0006] Technical Solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A rotor folding mechanism comprises a base plate, a bracket assembly and a driving assembly; the base plate is provided with a shaft column and a detachable locking column; the bracket assembly comprises a first arm and a second arm, the first arm and the second arm are both rotatably connected to the shaft column for folding and expansion; the first arm and the second arm are both provided with locking holes, the locking column can be inserted into the two locking holes to synchronously lock the expanded first arm and the second arm on the base plate; the driving assembly comprises a motor and a propeller, the motor is provided with two and respectively mounted on the first arm and the second arm, and the propeller is provided with two and respectively mounted on the output shafts of the two motors.

[0009] Preferably, a limit seat is also provided on the base plate, a first limit block is provided on one end of the first arm close to the lock hole, and a second limit block is provided on one end of the second arm close to the lock hole, and after the first arm and the second arm are expanded, the limit seat synchronously abuts against the first limit block and the second limit block.

[0010] Preferably, it also includes a fastening component that can replace the lock column, and the fastening component includes a block and an adjusting bolt; the block can be movably arranged on the base plate and can move away from or approach the limit seat; one end of the adjusting bolt abuts against the block, and the other end of the adjusting bolt can rotatably pass through the block and be threadedly connected to the limit seat; the stagnant position of the block can be limited by rotating the adjusting bolt, so that the block can synchronously abut or disengage from the first limit block and the second limit block.

[0011] Preferably, the fastening assembly further comprises an elastic body, the elastic body is sleeved on the adjusting bolt, and two ends of the elastic body respectively abut against the stopper and the limiting seat.

[0012] Preferably, the shaft column and the locking column are both bolts, and the shaft column and the locking column are both threadedly connected to the base plate.

[0013] A drone comprises a body and a rotor folding mechanism, wherein two rotor folding mechanisms are provided, and base plates of the two rotor folding mechanisms are both mounted on the body, and two groups of bracket assemblies are symmetrically arranged on the left and right sides of the body.

[0014] Preferably, it also includes a tripod assembly, which includes a first leg and a second leg. A connecting seat is also provided on the base plate of the rotor folding mechanism, and a fixing bolt is detachably installed on the connecting seat; the first leg and the second leg are both rotatably connected to the fixing bolt for folding and expansion; the first leg and the second leg can be locked or loosened by rotating the fixing bolt; the tripod assembly is provided with two groups and is respectively installed on the connecting seats of the two base plates.

[0015] A drone comprises a body and a rotor folding mechanism, wherein two shaft columns are provided and symmetrically arranged on both sides of the base plate, two groups of bracket assemblies are provided corresponding to the shaft columns, two lock columns are provided corresponding to the bracket assemblies, and two groups of drive assemblies are also provided corresponding to the bracket assemblies; the base plate is mounted on the body, and the two groups of bracket assemblies are symmetrically arranged on the left and right sides of the body.

[0016] Preferably, it also includes a tripod assembly, which includes a first leg and a second leg. A connecting seat is provided on the base plate of the rotor folding mechanism, and a fixing bolt is detachably installed on the connecting seat; the first leg and the second leg are both rotatably connected to the fixing bolt for folding and expansion; the first leg and the second leg can be locked or loosened by rotating the fixing bolt; the connecting seat is provided with two and is symmetrically arranged on the left and right sides of the base plate, and the tripod assembly is provided with two groups and is respectively installed on the two connecting seats.

[0017] Beneficial Effects

[0018] The utility model provides a rotor folding mechanism and a UAV. The rotor folding mechanism is used to realize the folding and expansion of a first arm and a second arm by designing a shaft column on a base plate, and is used to plug or disengage two lock holes by designing a lock column to lock or loosen the expanded first arm and the second arm. Compared with the prior art, the structure is compact and the use of accessories can be reduced, which not only achieves lightweight but also reduces the cost. The UAV can reduce the weight of the whole machine by installing the rotor folding mechanism on the body, making it convenient to carry outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 A schematic diagram of the use status of the utility model drone is shown;

[0021] Figure 2 A schematic diagram of the folded state of the drone of the utility model is shown;

[0022] Figure 3 Shows Figure 2 The enlarged view of point A in the middle;

[0023] Figure 4 The exploded schematic diagram of the UAV of the utility model is shown;

[0024] Figure 5 The structure diagram of the machine body of the utility model is shown;

[0025] Figure 6 The schematic diagram of the structure of the fuselage rotor folding mechanism and the tripod assembly of the utility model is shown;

[0026] Figure 7 Shows Figure 6 The enlarged view of point B in the middle;

[0027] Figure 8A schematic diagram showing the use state of the rotor folding mechanism of the utility model is shown;

[0028] Fig. 9 Shows Figure 8 Enlarged view of point C in the middle;

[0029] Fig.10 A schematic diagram showing the folding state of the rotor folding mechanism of the utility model is shown;

[0030] Fig.11 Shows Fig.10 The enlarged view of point D in the middle;

[0031] Fig.12 The exploded schematic diagram of the rotor folding mechanism of the utility model is shown.

[0032] In the figure: 1 base plate, 11 shaft column, 12 lock column, 13 limit seat, 14 connecting seat, 140 fixing bolt, 2 bracket assembly, 20 lock hole, 21 first machine arm, 210 first limit block, 22 second machine arm, 220 second limit block, 3 driving assembly, 31 motor, 32 propeller, 4 fastening assembly, 41 block, 42 ​​adjusting bolt, 43 elastic body, 5 machine body, 6 tripod assembly, 61 first support leg, 62 second support leg. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0034] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intermediate component at the same time. Unless otherwise defined, all technical and scientific terms used in this document have the same meaning as those generally understood by technicians in the technical field to which this application belongs. It should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. The terms used in this document in the specification of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application.

[0035] See attached Figure 8 -Attached Fig.12 A rotor folding mechanism comprises a base plate 1, a bracket assembly 2 and a driving assembly 3; the base plate 1 is provided with a shaft column 11 and a detachable locking column 12; the bracket assembly 2 comprises a first arm 21 and a second arm 22, both of which are rotatably connected to the shaft column 11 for folding and expansion; the first arm 21 and the second arm 22 are both provided with a locking hole 20, and the locking column 12 can be plugged into the two locking holes 20 to synchronously lock the expanded first arm 21 and the second arm 22 on the base plate 1; the driving assembly 3 comprises a motor 31 and a propeller 32, two motors 31 are provided and are respectively mounted on the first arm 21 and the second arm 22, and two propellers 32 are provided and are respectively mounted on the output shafts of the two motors 31.

[0036] Specifically, when the first arm 21 and the second arm 22 are in an expanded state, the locking column 12 is inserted into the locking hole 20 on the first arm 21 and the second arm 22, and with the cooperation of the shaft column 11, the expanded first arm 21 and the second arm 22 can be synchronously locked on the base plate 1 to facilitate the normal use of the driving component 3.

[0037] When the first arm 21 and the second arm 22 need to be folded, the locking column 12 is removed from the base plate 1 and simultaneously disengaged from the two locking holes 20 to release the restrictions on the first arm 21 and the second arm 22. At this time, the first arm 21 and the second arm 22 can be rotated around the axis column 11 so that the two can be folded on the base plate 1, thereby reducing the overall area and improving portability.

[0038] Before folding the first arm 21 and the second arm 22, the propeller 32 can be removed from the two motors 31 to further reduce the overall area after folding. After the first arm 21 and the second arm 22 are folded, the user can reinstall the lock column 12 on the base plate 1 to avoid losing the lock column 12.

[0039] In summary, the utility model designs a shaft column 11 on the base plate 1 to realize the folding and expansion of the first arm 21 and the second arm 22, and designs a locking column 12 to be used for plugging into or disengaging from the two locking holes 20 to lock or loosen the expanded first arm 21 and the second arm 22; compared with the prior art, the first arm 21 and the second arm 22 of the rotor folding mechanism are arranged in coordination, so locking can be achieved through the shaft column 11 and the locking column 12, and its structure is compact, which can reduce the use of accessories, thereby achieving lightweight and reducing manufacturing costs.

[0040] See attached Figure 8 -Attached Fig.12A limit seat 13 is also provided on the base plate 1, a first limit block 210 is provided on one end of the first arm 21 close to the lock hole 20, and a second limit block 220 is provided on one end of the second arm 22 close to the lock hole 20. After the first arm 21 and the second arm 22 are expanded, the limit seat 13 synchronously abuts against the first limit block 210 and the second limit block 220, and after the first arm 21 and the second arm 22 are folded, the limit seat 13 is away from the first limit block 210 and the second limit block 220.

[0041] Therefore, the design of the limit seat 13 can, on the one hand, limit the expansion angle of the first arm 21 and the second arm 22, so that the lock holes 20 on the first arm 21 and the second arm 22 can be quickly positioned to facilitate the insertion of the lock column 12; on the other hand, it can also limit the rotation direction of the first arm 21 and the second arm 22, so that the first arm 21 and the second arm 22 can only rotate in one direction to facilitate user operation.

[0042] See attached Figure 8 -Attached Fig.11 The utility model also includes a fastening assembly 4, which includes a stopper 41 and an adjusting bolt 42; the stopper 41 is movably arranged on the substrate 1 and can move away from or approach the limit seat 13; one end of the adjusting bolt 42 abuts against the stopper 41, and the other end of the adjusting bolt 42 rotatably passes through the stopper 41 and is threadedly connected to the limit seat 13; the stagnant position of the stopper 41 can be limited by rotating the adjusting bolt 42, so that the stopper 41 can synchronously abut or disengage from the first limit block 210 and the second limit block 220.

[0043] Specifically, when the first arm 21 and the second arm 22 are in the expanded state, the limit seat 13 and the stop block 41 simultaneously abut against the first limit block 210 and the second limit block 220, so that the first arm 21 and the second arm 22 are completely restricted and cannot rotate, thereby increasing the installation stability of the first arm 21 and the second arm 22 after expansion.

[0044] When the first arm 21 and the second arm 22 need to be folded, the adjusting bolt 42 needs to be turned to loosen the stopper 41, and then the stopper 41 needs to be moved to disengage from the first limit block 210 and the second limit block 220 to release the restriction. In this case, if the locking column 12 is not provided, the first arm 21 and the second arm 22 can be directly rotated to complete the folding; if the locking column 12 is provided, the locking column 12 is first removed and then the first arm 21 and the second arm 22 are rotated to complete the folding.

[0045] In summary, the block 41 cooperates with the limit seat 13 to lock the first arm 21 and the second arm 22, so the fastening assembly 4 can replace the lock column 12 to be used alone, or the fastening assembly 4 can be used in combination with the lock column 12, and this is not limited in the present invention.

[0046] See attached Fig.10-Attached Fig.11 The fastening assembly 4 further includes an elastic body 43 , which is sleeved on the adjusting bolt 42 , and two ends of the elastic body 43 respectively abut against the stopper 41 and the limiting seat 13 .

[0047] Specifically, when the block 41 abuts against the first limit block 210 and the second limit block 220, the elastic body 43 is compressed to store energy; when the adjusting bolt 42 is turned to loosen the block 41, the elastic body 43 releases energy and recovers, and drives the baffle to move outward and away from the first limit block 210 and the second limit block 220, thereby releasing the restriction on the first arm 21 and the second arm 22, so as to facilitate the user to fold the first arm 21 and the second arm 22; therefore, the design of the elastic body 43 enables the block 41 to adaptively move away from the first limit block 210 and the second limit block 220 without the user having to use his fingers to move the block 41, thereby improving the operational convenience.

[0048] The elastic body 43 may be a component with elasticity and restoring ability, such as a spring and a rubber sleeve, which is not limited in the present invention, and a spring is taken as an example for reference.

[0049] See attached Fig. 9 and attached Fig.12 The shaft column 11 and the lock column 12 are both bolts, and the shaft column 11 and the lock column 12 are both threadedly connected to the base plate 1.

[0050] Specifically, the shaft column 11 adopts bolts mainly to facilitate the installation of the first arm 21 and the second arm 22 on the base plate 1, while the lock column 12 adopts bolts to facilitate the insertion or removal of the lock holes 20 on the first arm 21 and the second arm 22, thereby improving the operational convenience.

[0051] The rotor folding mechanism is generally installed in a drone or a manned aircraft. Since there are various ways to install it on a drone, and different installation methods will lead to certain differences in its structure, the present invention does not limit this. For the sake of easy understanding, two common embodiments are cited here:

[0052] Embodiment 1

[0053] A drone comprises a body 5 and a rotor folding mechanism. Two rotor folding mechanisms are provided, and base plates 1 of the two rotor folding mechanisms are both mounted on the body 5, and two sets of bracket assemblies 2 are symmetrically arranged on the left and right sides of the body 5.

[0054] When in use, the first arm 21 and the second arm 22 of the two sets of bracket assemblies 2 are pulled out from the two base plates 1 respectively, and then the corresponding locking column 12 or fastening assembly 4 is used to lock the expanded first arm 21 and the second arm 22 on the corresponding base plate 1, and then the propeller 32 is installed on the motor 31.

[0055] After use, the propeller 32 is removed from the motor 31, and then the restrictions of the two baffles on the two first limit blocks 210 and the two second limit blocks 220 are released. If a lock column 12 is provided, the lock column 12 is taken out from the lock hole 20, and finally the first arm 21 and the second arm 22 are rotated to shrink and fold them on both sides of the body 5.

[0056] Compared with the existing foldable drones, the drone in the utility model has the advantages of being overall light, low cost, and high portability because it is equipped with a rotor folding mechanism with a simple structure and few accessories.

[0057] Furthermore, the drone in the utility model also includes a tripod assembly 6, which includes a first leg 61 and a second leg 62. A connecting seat 14 is also provided on the base plate 1 of the rotor folding mechanism, and a fixing bolt 140 is detachably installed on the connecting seat 14; the first leg 61 and the second leg 62 are both rotatably connected to the fixing bolt 140 for folding and expansion; the first leg 61 and the second leg 62 can be locked or loosened by rotating the fixing bolt 140; the tripod assembly 6 is provided with two groups and is respectively installed on the connecting seats 14 of the two base plates 1.

[0058] When in use, the fixing bolt 140 can be loosened first, and the first leg 61 and the second leg 62 can be rotated to stagger the body 5, and then the fixing bolt 140 can be tightened to lock the expanded first leg 61 and the second leg 62 on the connecting seat 14 of the two base plates 1 to be used as a tripod, so that the drone can be easily docked on the ground; after use, the fixing bolt 140 can be loosened first, and the first leg 61 and the second leg 62 can be rotated to retract on the body 5, and then the fixing bolt 140 can be tightened to lock the folded first leg 61 and the second leg 62 for easy carrying.

[0059] It should be noted that the present invention does not provide drawings for the first embodiment, but the specific structure of this embodiment can be directly deduced from the remaining drawings.

[0060] Embodiment 2

[0061] As attached Figure 1 -Attached Figure 7 As shown, an unmanned aerial vehicle includes a body 5 and a rotor folding mechanism, two shaft columns 11 are provided and are symmetrically arranged on both sides of a base plate 1, two groups of bracket assemblies 2 are provided corresponding to the shaft columns 11, two lock columns 12 are provided corresponding to the bracket assemblies 2, and two groups of drive assemblies 3 are also provided corresponding to the bracket assemblies 2; the base plate 1 is installed on the body 5, and the two groups of bracket assemblies 2 are symmetrically arranged on the left and right sides of the body 5.

[0062] When in use, the first arm 21 and the second arm 22 of the two sets of bracket assemblies 2 are pulled out from both sides of the body 5 respectively, and then the fastening assembly 4 or the corresponding locking column 12 is used to lock the expanded first arm 21 and the second arm 22 on the base plate 1, and then the propeller 32 is installed on the motor 31.

[0063] After use, the propeller 32 is removed from the motor 31, and then the restriction of the baffle on the two first limit blocks 210 and the two second limit blocks 220 is released. If a lock column 12 is provided, the lock column 12 is taken out from the lock hole 20, and finally the first arm 21 and the second arm 22 are rotated to retract and fold them on both sides of the body 5.

[0064] Furthermore, it also includes a tripod assembly 6, which includes a first leg 61 and a second leg 62. A connecting seat 14 is provided on the base plate 1 of the rotor folding mechanism, and a fixing bolt 140 is detachably installed on the connecting seat 14; the first leg 61 and the second leg 62 are both rotatably connected to the fixing bolt 140 for folding and expansion; the first leg 61 and the second leg 62 can be locked or loosened by rotating the fixing bolt 140; two connecting seats 14 are provided and are symmetrically arranged on the left and right sides of the base plate 1, and the tripod assembly 6 is provided with two groups and is respectively installed on the two connecting seats 14.

[0065] When in use, the fixing bolt 140 can be loosened first, and the first leg 61 and the second leg 62 can be rotated to stagger the body 5, and then the fixing bolt 140 can be tightened to lock the expanded first leg 61 and the second leg 62 on the connecting seat 14 on both sides of the base plate 1 to be used as a tripod, so that the drone can be easily docked on the ground; after use, the fixing bolt 140 can be loosened first, and the first leg 61 and the second leg 62 can be rotated to retract on the body 5, and then the fixing bolt 140 can be tightened to lock the folded first leg 61 and the second leg 62 for easy carrying.

[0066] It should be noted that, compared with the method of setting up two rotor folding mechanisms, integrating the bracket assembly 2 and the fastening assembly 4 on the same base plate 1 can make the overall structure more compact, and two sets of bracket assemblies 2 can be locked at the same time through a set of fastening assemblies 4, which can save materials and reduce costs; similarly, setting two connecting seats 14 on the same base plate 1 can also make the overall structure more compact, and make it easier to transfer the weight of the body 5 to each support leg through the base plate 1, thereby improving the stability of use; therefore, the structure described in Example 2 is preferably used as the production basis in the utility model.

[0067] It should also be noted that, although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application.

Claims

1. A rotor folding mechanism, It is characterized in that include: A base plate (1), wherein the base plate (1) is provided with a shaft column (11) and a detachable locking column (12); A support assembly (2), the support assembly (2) comprising a first arm (21) and a second arm (22), the first arm (21) and the second arm (22) being rotatably connected to the shaft column (11) for folding and expanding; the first arm (21) and the second arm (22) are each provided with a locking hole (20), the locking column (12) being pluggable into the two locking holes (20) for synchronously locking the expanded first arm (21) and the second arm (22) on the base plate (1); A drive assembly (3), the drive assembly (3) comprising a motor (31) and a propeller (32), the motor (31) being provided with two and respectively mounted on the first machine arm (21) and the second machine arm (22), and the propeller (32) being provided with two and respectively mounted on output shafts of the two motors (31).

2. A rotor folding mechanism according to claim 1, It is characterized in that The base plate (1) is further provided with a limit seat (13); the first arm (21) is provided with a first limit block (210) at one end close to the lock hole (20); the second arm (22) is provided with a second limit block (220) at one end close to the lock hole (20); after the first arm (21) and the second arm (22) are expanded, the limit seat (13) synchronously abuts against the first limit block (210) and the second limit block (220).

3. A rotor folding mechanism according to claim 2, It is characterized in that The invention also comprises a fastening assembly (4) which can replace the locking column (12), the fastening assembly (4) comprising a stopper (41) and an adjusting bolt (42); the stopper (41) is movably arranged on the base plate (1) and can move away from or approach the limiting seat (13); one end of the adjusting bolt (42) abuts against the stopper (41), and the other end of the adjusting bolt (42) can rotatably penetrate the stopper (41) and be threadedly connected to the limiting seat (13); the stagnant position of the stopper (41) can be limited by rotating the adjusting bolt (42), so that the stopper (41) can synchronously abut against or disengage from the first limiting block (210) and the second limiting block (220).

4. A rotor folding mechanism according to claim 3, It is characterized in that The fastening assembly (4) further comprises an elastic body (43), the elastic body (43) being sleeved on the adjusting bolt (42), and the two ends of the elastic body (43) respectively abutting against the stopper (41) and the limiting seat (13).

5. A rotor folding mechanism according to claim 1, It is characterized in that The shaft column (11) and the lock column (12) are both bolts, and the shaft column (11) and the lock column (12) are both threadedly connected to the base plate (1).

6. A rotor folding mechanism according to any one of claims 1 to 5, It is characterized in that The shaft columns (11) are provided in two pieces and are symmetrically arranged on both sides of the base plate (1); the bracket assembly (2) is provided in two sets corresponding to the shaft columns (11); the lock columns (12) are provided in two pieces corresponding to the bracket assembly (2); and the drive assembly (3) is also provided in two sets corresponding to the bracket assembly (2).

7. An unmanned aerial vehicle, comprising a body (5), It is characterized in that It also includes a rotor folding mechanism as described in any one of claims 1 to 5, wherein two rotor folding mechanisms are provided, and the base plates (1) of the two rotor folding mechanisms are both mounted on the machine body (5), and the two groups of the bracket assemblies (2) are symmetrically arranged on the left and right sides of the machine body (5).

8. The drone according to claim 7, It is characterized in that The invention also comprises a tripod assembly (6), the tripod assembly (6) comprising a first support leg (61) and a second support leg (62); a connecting seat (14) is also provided on the base plate (1) of the rotor folding mechanism, and a fixing bolt (140) is detachably mounted on the connecting seat (14); the first support leg (61) and the second support leg (62) are both rotatably connected to the fixing bolt (140) to be folded and expanded; the first support leg (61) and the second support leg (62) can be locked or released by rotating the fixing bolt (140); the tripod assembly (6) is provided with two groups and is respectively mounted on the connecting seats (14) of the two base plates (1).

9. An unmanned aerial vehicle, comprising a body (5), It is characterized in that It also comprises a rotor folding mechanism as claimed in claim 6, wherein the base plate (1) is mounted on the machine body (5), and the two groups of the bracket assemblies (2) are symmetrically arranged on the left and right sides of the machine body (5).

10. The drone according to claim 9, It is characterized in that The invention also comprises a tripod assembly (6), the tripod assembly (6) comprising a first support leg (61) and a second support leg (62); a coupling seat (14) is provided on the base plate (1) of the rotor folding mechanism, and a fixing bolt (140) is detachably mounted on the coupling seat (14); the first support leg (61) and the second support leg (62) are both rotatably connected to the fixing bolt (140) to be folded and expanded; the first support leg (61) and the second support leg (62) can be locked or released by rotating the fixing bolt (140); two coupling seats (14) are provided and symmetrically arranged on the left and right sides of the base plate (1); the tripod assembly (6) is provided with two groups and is respectively mounted on the two coupling seats (14).

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