Unmanned aerial vehicle passive protection device and method

Abstract

The unmanned aerial vehicle passive protection device can provide angle conversion of the rotor of the unmanned aerial vehicle body according to the wind direction and wind speed when the unmanned aerial vehicle body encounters crosswind or severe weather, the working direction of the rotor is adjusted, the unmanned aerial vehicle body is reversely pushed when the unmanned aerial vehicle body is about to collide, the safe distance between the whole device and the front obstacle is kept, the landing protection design at the bottom is integrated with the rotor adjustment and is bidirectional output, and the chassis is timely retracted to protect the bottom component when the unmanned aerial vehicle body is about to collide.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of unmanned aerial vehicles, more particularly to an unmanned aerial vehicle passive protection device and method. BACKGROUND

[0002] As a new technology product, unmanned aerial vehicles are used in many fields, but there are still many instabilities in bad weather such as strong wind and heavy rain.

[0003] For example: CN116022380A, unmanned aerial vehicle protection device, the application discloses an unmanned aerial vehicle protection device, which comprises a supporting assembly, an unmanned aerial vehicle body and a plurality of protection mechanisms, the supporting assembly comprises a supporting frame and a plurality of foot buffer mechanisms, the plurality of foot buffer mechanisms are arranged at the bottom of the supporting frame; the unmanned aerial vehicle body is arranged on the supporting frame; each protection mechanism comprises a cover body, a cylinder body, a first buffer assembly, a second buffer assembly and a third buffer assembly, the cover body is detachably arranged on the supporting frame; the cylinder body has two ports, one of which is detachably connected with the cover body; one end of the first buffer assembly is detachably connected with the cover body, and the other end of the first buffer assembly extends into the cylinder body; one end of the second buffer assembly is movably arranged in the other port, and the other end of the second buffer assembly extends to the outside of the cylinder body; the third buffer assembly is pivotally arranged in the cylinder body. Thus, the impact force occurring during the flight of the unmanned aerial vehicle can be effectively buffered, and the unmanned aerial vehicle can be prevented from being damaged by impacting objects. The protection part of the invention is single, there is no mechanism for responding to bad weather, and the buffer assembly is also a conventional mechanism that can be adjusted by a person skilled in the art according to actual conditions.

[0004] For example: CN218806713U, a cluster performance unmanned aerial vehicle protection cover, the utility model discloses a cluster performance unmanned aerial vehicle protection cover, which comprises a protection cover body and a lock cover mechanism installed on the protection cover body, and the protection cover body comprises an upper frame and a lower frame which are movably connected. The utility model solves the problem of rapid disassembly and reassembly, and redesigns the paddle protection cover based on the current cluster performance unmanned aerial vehicle. The utility model is simple and practical in structure, but cannot solve the protection of the fan blade in all directions, and the protection cover structure is also a conventional mechanism that can be adjusted by a person skilled in the art according to actual conditions. SUMMARY

[0005] The purpose of the present application is to provide an unmanned aerial vehicle passive protection device and method, which can provide angle conversion of the rotor of the unmanned aerial vehicle body according to the wind direction and wind speed when encountering crosswind or bad weather, and realize reverse pushing of the unmanned aerial vehicle body to maintain a safe distance between the unmanned aerial vehicle body and the front obstacle by adjusting the working direction of the rotor when the unmanned aerial vehicle body is about to collide. The landing protection design at the bottom is integrated with the rotor adjustment and outputs bidirectionally, and is used for timely contraction of the chassis to protect the bottom components when the unmanned aerial vehicle body is about to collide.

[0006] The application achieves the objective through the following technical solutions.

[0007] An unmanned aerial vehicle passive protection device is characterized in that it comprises an unmanned aerial vehicle, a power device and a synchronous support device, and the power device and the synchronous support device are connected with the unmanned aerial vehicle.

[0008] As a further optimization of the technical solution, the unmanned aerial vehicle passive protection device comprises a body, a driving group fixed rack A, a driving group A, a driving group fixed rack B, a driving group B, a filming module, a control mainboard and a power module, wherein a heat dissipation plate A, a heat dissipation plate B, a U-shaped plate, the power module and a water-proof upper cover plate are fixedly connected with the body, the driving group fixed rack A, the driving group fixed rack B, the filming module and a worm are rotationally connected with the body, the driving group fixed rack A is fixedly connected with the driving group A, the driving group fixed rack B is fixedly connected with the driving group B, the driving group fixed rack A is fixedly connected with the worm through a flexible coupling, and the worm is fixedly connected with the driving group fixed rack B.

[0009] As a further optimization of the technical solution, the unmanned aerial vehicle passive protection device comprises a power device, wherein the power device comprises a motor, a connecting rod shaft A, a connecting rod A, a chuck A, a chuck B and a worm, the output shaft of the motor is fixedly connected with a synchronous pulley A, the synchronous pulley A is rotationally connected with a synchronous pulley B through a belt, the synchronous pulley B and the output shaft of the chuck A are fixedly connected with the connecting rod shaft A, non-standard gears A, B, C and D are rotationally connected with the connecting rod shaft A and the connecting rod A, the connecting rod shaft A and the connecting rod A are rotationally connected with a U-shaped channel steel, the output shaft of the chuck A is rotationally connected with an axle seat B, the chuck A is rotationally connected with the chuck B through a crank A, a crank B and a crank C, the output shaft of the chuck B is rotationally connected with an axle seat A, the output shaft of the chuck B is fixedly connected with the worm, and the output shaft of the chuck B is rotationally connected with the axle seat A.

[0010] As a further optimization of the technical solution, the unmanned aerial vehicle passive protection device, the synchronous support device includes slide support A, support leg A, support leg B, slide support B, wherein the pin gear A, connecting rod B, pin gear B, connecting rod C are rotatably connected with slide support A, connecting rod B is connected with slide block group A, connecting rod C is connected with slide block group B, slide block group A and slide block group B are connected with slide support A, pin gear A is meshed with pin gear B, pin gear A is fixedly connected with pin gear C through shaft A, shaft A is fixedly connected with gear A, pin gear C, connecting rod D, pin gear D and connecting rod E are rotatably connected with slide support B, pin gear C is connected with connecting rod D, connecting rod D is connected with slide block group C, pin gear D is connected with connecting rod E, connecting rod E is connected with slide block group D, pin gear C is meshed with pin gear D, slide block group C and slide block group D are connected with slide support B, connecting rod B and connecting rod D are fixedly connected with support leg A, connecting rod C and connecting rod E are fixedly connected with support leg B.

[0011] A passive protection method for a dual-rotor unmanned aerial vehicle, specifically implemented by a passive protection device for an unmanned aerial vehicle, which can provide angle conversion for the rotors of the machine body according to the wind direction and wind speed when encountering crosswinds or severe weather, and by adjusting the working direction of the rotors, the machine body can be reversely pushed to maintain a safe distance from the front obstacles when a collision is about to occur. The landing protection design at the bottom is integrated with the rotor adjustment for bidirectional output, which is used to timely retract the chassis to protect the bottom components when the machine body is about to collide, including the following steps:

[0012] S1, based on the longitudinal double-rotor unmanned aerial vehicle, when shooting the building group in the investigation site or the complex mountainous area, there will be a lot of uncertainty and instability, the operation level of the technical personnel is required to be very high when the buildings are dense, various obstacles are around, and when performing tasks in the wild mountains, the air flow between different altitudes is complex and changeable, the conventional unmanned aerial vehicle has a larger possibility of collision and crash when encountering the above described environment, because the flight environment is usually determined by the front camera and real-time positioning, and for the camera visual angle blind area, there will be certain hidden dangers, aiming at the above several points, the application provides a passive protection device for unmanned aerial vehicle, solves the shaking or rollover problem of unmanned aerial vehicle when encountering air flow and convection in the wild environment, and the collision warning and timely protection of the camera visual angle blind area in the dense building group, which brings a certain degree of improvement for the above several problems, the specific steps are that the driving group A 105 and the driving group B 107 in the unmanned aerial vehicle 1 are started, the unmanned aerial vehicle starts to fly, wherein the power module 113 is the power supply assembly of the whole unmanned aerial vehicle, the heat dissipation plate A 102 and the heat dissipation plate B 103 are required for heat dissipation when the internal structure works or the control mainboard 112 works, the ideal effect is achieved through front and rear heat dissipation, the top water-proof cover plate 114 is an arc-shaped dome structure, which reduces the impact force on the top of the unmanned aerial vehicle in rainy and snowy weather, since the driving group fixed frame A 104 and the driving group fixed frame B 106 are synchronously connected, when the driving group fixed frame A 104 rotates, the driving group fixed frame B 106 is driven to rotate through the flexible coupling 110, the worm 109 drives the driving group fixed frame B 106 to rotate, forming synchronous rotation, considering that if the unmanned aerial vehicle encounters strong convection weather, the body 101 will have certain deformation, in order to prevent the deformation from interfering with the rotation of the driving group fixed frame A 104, the flexible coupling 110 is embedded between the driving group fixed frame A 104 and the flexible coupling 110, to solve such problems;

[0013] S2, the unmanned aerial vehicle through the control mainboard 112 implementation of the passive protection of the whole device, the details of which is through the embedded body 101, heat sink A102, heat sink B103 in the collision sensor real-time control mainboard 112 signal data transmission, when the unmanned aerial vehicle in bad weather or dense building group encounter signal interruption, the unmanned aerial vehicle is according to the collision safety spacing of control mainboard 112 adjustment of the protection measures of unmanned aerial vehicle, when the unmanned aerial vehicle in strong convective or cross wind weather occurs large angle roll, start the motor 201, its output shaft drives synchronous pulley A202 rotation, synchronous pulley A202 through the belt 203 drives synchronous pulley B204 rotation, synchronous pulley B204 drives connecting rod shaft A205 rotation, connecting rod shaft A205 through connecting rod A210 drives non standard gear A206, non standard gear B207, non standard gear C208, non standard gear D209 rotation, connecting rod shaft A205 rotation drives chuck A212 rotation, chuck A212 through the crank A213, crank B214, crank C215 drives chuck B216 rotation, chuck B216 drives worm wheel 217 rotation, here non standard gear A206, non standard gear B207, non standard gear C208, non standard gear D209 rotation corresponds to the synchronous support device 3 chassis contraction protection, and this protection is when the unmanned aerial vehicle 1 in the drive group fixed rack A104, drive group fixed rack B106 rotation wind correction body 101, designed to protect the unmanned aerial vehicle bottom structure and the surrounding environment friction collision, is a kind of passive protection for the bottom in the process of unmanned aerial vehicle rollover correction, this protection and unmanned aerial vehicle 1 rotor steering is driven by power device 2, the specific steps of the unmanned aerial vehicle 1 rotor steering is when the worm wheel 217 in power device 2 rotates and drives the worm 109 rotation, worm 109 drives drive group fixed rack B106, flexible coupling 110 rotation, flexible coupling 110 drives drive group fixed rack A104 rotation, normal flight drive group fixed rack A104, drive group fixed rack B106 and body 101 is in parallel state, when the unmanned aerial vehicle occurs lateral overturning or, through the body 101, heat sink A102, heat sink B103 embedded distance sensor early warning, adjust the drive group fixed rack A104, drive group fixed rack B106 rotation to correct the driving angle of the unmanned aerial vehicle in time, force the unmanned aerial vehicle in the opposite direction away from the collision body;

[0014] S3, when the non-standard gear A206, non-standard gear B207, non-standard gear C208, non-standard gear D209 in the power device 2 rotates intermittently meshing belt drive gear A311 in the synchronous support device 3 rotates, gear A311 drive shaft A310 rotates, shaft A310 drive pin gear A302, pin gear C312 rotates, pin gear A302 drive pin gear B306 rotates at the same time, pin gear A302 rotates through connecting rod B303 drive slider group A304 along the slide support A301 inner guide groove sliding, pin gear B306 rotates through connecting rod C307 drive slider group B308 along the slide support A301 inner guide groove sliding, the sliding direction and the sliding direction of slider group A304 are opposite, pin gear C312 rotates drive pin gear D315 rotates at the same time, pin gear C312 rotates through connecting rod D313 drive slider group C314 along the slide support B318 inner guide groove sliding, pin gear D315 rotates through connecting rod E316 drive slider group D317 along the slide support B318 inner guide groove sliding, wherein the direction of slider group C314 and slider group D317 are opposite, connecting rod B303, connecting rod D313 drive support leg A305 rotates, connecting rod C307, connecting rod E316 drive support leg B309 rotates, support leg A305 and support leg B309 rotate in opposite directions, the purpose is to solve the problem of collision interference when the unmanned aerial vehicle drive group A105, drive group B107 rotates to push the bottom assembly, provide collision protection for the production module 108.

[0015] The unmanned aerial vehicle passive protection device and method has the advantages that: 1. When encountering crosswind or bad weather, the angle of the rotor of the machine body can be converted according to the wind direction and wind speed, and the working direction of the rotor is adjusted to realize the reverse pushing of the machine body when a collision is about to occur, so that a safe distance between the entire device and the front obstacle is maintained; 2. The landing protection design at the bottom is integrated with the rotor adjustment and outputs bidirectionally, and is used for timely contraction of the chassis to protect the bottom assembly when the machine body is about to collide. BRIEF DESCRIPTION OF DRAWINGS

[0016] The application will be further described in detail below in combination with the drawings and specific implementation methods.

[0017] Figure 1 is the overall structure of the application Figure 1 ;

[0018] Figure 2 is the overall structure of the application Figure 2 ;

[0019] Figure 3 is the structure of the unmanned aerial vehicle of the application Figure 1 ;

[0020] Figure 4 is the schematic diagram of the unmanned aerial vehicle structure of the present application Figure 2 ;

[0021] Figure 5 is the schematic diagram of the power device structure of the present application Figure 1 ;

[0022] Figure 6 is the schematic diagram of the power device structure of the present application Figure 2 ;

[0023] Figure 7 is the schematic diagram of the synchronous support device structure of the present application Figure 1 ;

[0024] Figure 8 is the schematic diagram of the synchronous support device structure of the present application Figure 2 ;

[0025] In the figure: unmanned aerial vehicle 1; body 101; heat sink A 102; heat sink B 103; drive group fixed rack A 104; drive group A 105; drive group fixed rack B 106; drive group B 107; filming module 108; worm 109; flexible coupling 110; U-shaped plate 111; control mainboard 112; power module 113; water-proof upper cover plate 114; power device 2; motor 201; synchronous pulley A 202; belt 203; synchronous pulley B 204; connecting rod shaft A 205; non-standard gear A 206; non-standard gear B 207; non-standard gear C 208; non-standard gear D 209; connecting rod A 210; U-shaped channel steel 211; chuck A 212; crank A 213; crank B 214; crank C 215; chuck B 216; worm wheel 217; shaft seat A 218; shaft seat B 219; synchronous support device 3; slide support A 301; pin gear A 302; connecting rod B 303; slide block group A 304; support leg A 305; pin gear B 306; connecting rod C 307; slide block group B 308; support leg B 309; shaft A 310; gear A 311; pin gear C 312; connecting rod D 313; slide block group C 314; pin gear D 315; connecting rod E 316; slide block group D 317; slide support B 318. Specific embodiments

[0026] The present application will be further described in detail below with reference to the accompanying drawings. Specific embodiment one:

[0028] The present embodiment will be described below Figures 1-8 A passive protection device for unmanned aerial vehicle, comprising an unmanned aerial vehicle 1, a power device 2, and a synchronous support device 3, wherein the power device 2 and the synchronous support device 3 are connected to the unmanned aerial vehicle 1. Specific embodiment two:

[0030] The following describes the embodiment Figures 1-8 The operation principle of the unmanned aerial vehicle 1 is as follows: the driving group A 105 and the driving group B 107 in the unmanned aerial vehicle 1 are started, and the unmanned aerial vehicle starts to fly. The power module 113 is a power supply assembly of the whole unmanned aerial vehicle. The heat dissipation plates A 102 and B 103 are required for heat dissipation when the internal structure works or the control mainboard 112 works. The ideal effect is achieved through front and rear heat dissipation. The top waterproof cover plate 114 is an arc-shaped dome structure, which weakens the impact force on the top of the unmanned aerial vehicle in rainy and snowy weather. Since the driving group fixed frame A 104 and the driving group fixed frame B 106 are synchronously connected, the driving group fixed frame A 104 rotates and drives the driving group fixed frame B 106 to rotate through the flexible coupling 110. The worm 109 drives the driving group fixed frame B 106 to rotate, forming synchronous rotation. Considering that the body 101 will be deformed to a certain extent when the unmanned aerial vehicle encounters strong convection weather, in order to prevent the rotation of the driving group fixed frame A 104 from being interfered with when the deformation occurs, the flexible coupling 110 is embedded between the driving group fixed frame A 104 and the flexible coupling 110, solving such problems. Specific embodiment three

[0032] The following describes the embodiment Figures 1-8The power device 2 operates as follows: the starting motor 201 drives the synchronous pulley A 202, which drives the synchronous pulley B 204 through the belt 203, and the synchronous pulley B 204 drives the connecting rod shaft A 205, which drives the non-standard gear A 206, the non-standard gear B 207, the non-standard gear C 208, and the non-standard gear D 209 through the connecting rod A 210. When the connecting rod shaft A 205 rotates, the chuck A 212 is driven to rotate, and the chuck A 212 drives the chuck B 216 to rotate through the crank A 213, the crank B 214, and the crank C 215. The chuck B 216 drives the worm gear 217 to rotate. The rotation of the non-standard gear A 206, the non-standard gear B 207, the non-standard gear C 208, and the non-standard gear D 209 corresponds to the contraction protection of the chassis of the synchronous support device 3. This protection is designed to prevent the friction and collision of the bottom structure of the unmanned aerial vehicle 1 with the surrounding environment when the driving group fixed frame A 104 and the driving group fixed frame B 106 of the unmanned aerial vehicle 1 rotate to correct the body 101. It is a passive protection for the bottom during the process of correcting the rollover of the unmanned aerial vehicle. This protection and the rotation direction of the rotor of the unmanned aerial vehicle 1 are driven by the power device 2. The specific steps of the rotation direction of the rotor of the unmanned aerial vehicle 1 are as follows: when the worm gear 217 in the power device 2 rotates, the worm gear 109 is driven to rotate, and the worm gear 109 drives the driving group fixed frame B 106 and the flexible coupling 110 to rotate. The flexible coupling 110 drives the driving group fixed frame A 104 to rotate. When the unmanned aerial vehicle 1 is in normal flight, the driving group fixed frame A 104 and the driving group fixed frame B 106 are in parallel with the body 101. When the unmanned aerial vehicle 1 rolls over or collides with an object, the embedded distance sensor in the body 101, the heat sink A 102, and the heat sink B 103 will give an early warning. The driving group fixed frame A 104 and the driving group fixed frame B 106 are adjusted to rotate in time to correct the driving angle of the unmanned aerial vehicle 1, and the unmanned aerial vehicle 1 is forced to move in the opposite direction to avoid the collision object. Specific embodiment four:

[0034] The following will be combined Figures 1-8The operation principle of the synchronous support device 3 is as follows: when the non-standard gear A 206, the non-standard gear B 207, the non-standard gear C 208, and the non-standard gear D 209 in the power device 2 rotate intermittently to mesh with the gear A 311 in the synchronous support device 3, the gear A 311 drives the shaft A 310 to rotate, the shaft A 310 simultaneously drives the pin gear A 302 and the pin gear C 312 to rotate, the pin gear A 302 drives the pin gear B 306 to rotate when the pin gear A 302 rotates, the pin gear A 302 drives the slider group A 304 to slide along the guide groove in the slide support A 301 through the connecting rod B 303 when the pin gear A 302 rotates, the pin gear B 306 drives the slider group B 308 to slide along the guide groove in the slide support A 301 through the connecting rod C 307 when the pin gear B 306 rotates, the sliding direction of the slider group B 308 is opposite to that of the slider group A 304, the pin gear C 312 drives the pin gear D 315 to rotate when the pin gear C 312 rotates, the pin gear C 312 drives the slider group C 314 to slide along the guide groove in the slide support B 318 through the connecting rod D 313 when the pin gear C 312 rotates, the pin gear D 315 drives the slider group D 317 to slide along the guide groove in the slide support B 318 through the connecting rod E 316 when the pin gear D 315 rotates, the direction of the slider group C 314 is opposite to that of the slider group D 317, the connecting rod B 303 and the connecting rod D 313 drive the support leg A 305 to rotate when the connecting rod B 303 and the connecting rod D 313 rotate, the connecting rod C 307 and the connecting rod E 316 drive the support leg B 309 to rotate when the connecting rod C 307 and the connecting rod E 316 rotate, the rotating direction of the support leg A 305 is opposite to that of the support leg B 309, and the purpose is to solve the problem that the bottom assembly collides with surrounding objects when the unmanned aerial vehicle driving group A 105 and the driving group B 107 rotate and push, and to provide collision protection for the filming module 108.

Claims

1. An unmanned aerial vehicle passive protection device, characterized by: The unmanned aerial vehicle (1), a power device (2), and a synchronous support device (3) are connected to each other. The unmanned aerial vehicle (1) comprises a body (101), a driving group fixing rack A (104), a driving group A (105), a driving group fixing rack B (106), a driving group B (107), a filming module (108), a control mainboard (112), and a power module (113), wherein the heat dissipation plate A (102), the heat dissipation plate B (103), the U-shaped plate (111), the power module (113), and the waterproof upper cover plate (114) are fixedly connected to the body (101), the driving group fixing rack A (104), the driving group fixing rack B (106), the filming module (108), and the worm (109) are rotatably connected to the body (101), the driving group fixing rack A (104) is fixedly connected to the driving group A (105), the driving group fixing rack B (106) is fixedly connected to the driving group B (107), the driving group fixing rack A (104) is fixedly connected to the worm (109) through a flexible coupling (110), and the worm (109) is fixedly connected to the driving group fixing rack B (106); The power device (2) comprises a motor (201), a connecting rod shaft A (205), a connecting rod A (210), a chuck A (212), a chuck B (216), and a worm gear (217), wherein the output shaft of the motor (201) is fixedly connected to a synchronous pulley A (202), the synchronous pulley A (202) is rotatably connected to a synchronous pulley B (204) through a belt (203), the synchronous pulley B (204) and the output shaft of the chuck A (212) are fixedly connected to the connecting rod shaft A (205), non-standard gears A (206), B (207), C (208), and D (209) are rotatably connected to the connecting rod shaft A (205) and the connecting rod A (210), the connecting rod shaft A (205) and the connecting rod A (210) are rotatably connected to a U-shaped channel steel (211), the output shaft of the chuck A (212) is rotatably connected to an axle seat B (219), the chuck A (212) is rotatably connected to the chuck B (216) through a crank A (213), a crank B (214), and a crank C (215), the output shaft of the chuck B (216) is rotatably connected to an axle seat A (218), the output shaft of the chuck B (216) is fixedly connected to the worm gear (217), and the output shaft of the chuck B (216) is rotatably connected to the axle seat A (218). The synchronous support device (3) comprises a sliding support A (301), a support leg A (305), a support leg B (309), a sliding support B (318), wherein a pin gear A (302), a connecting rod B (303), a pin gear B (306), a connecting rod C (307) are all rotationally connected with the sliding support A (301), the connecting rod B (303) is connected with a sliding block group A (304), the connecting rod C (307) is connected with a sliding block group B (308), the sliding block group A (304) and the sliding block group B (308) are both connected with the sliding support A (301), the pin gear A (302) is meshingly connected with the pin gear B (306), the pin gear A (302) is fixedly connected with a pin gear C (312) through a shaft A (310), the shaft A (310) is fixedly connected with a gear A (311), the pin gear C (312), the connecting rod D (313), the pin gear D (315), the connecting rod E (316) are all rotationally connected with the sliding support B (318), the pin gear C (312) is connected with the connecting rod D (313), the connecting rod D (313) is connected with a sliding block group C (314), the pin gear D (315) is connected with the connecting rod E (316), the connecting rod E (316) is connected with a sliding block group D (317), the pin gear C (312) is meshingly connected with the pin gear D (315), the sliding block group C (314) and the sliding block group D (317) are both connected with the sliding support B (318), the connecting rod B (303) and the connecting rod D (313) are both fixedly connected with the support leg A (305), the connecting rod C (307) and the connecting rod E (316) are both fixedly connected with the support leg B (309); When the non-standard gear A (206), non-standard gear B (207), non-standard gear C (208), non-standard gear D (209) in the power device (2) rotates intermittently to engage the gear A (311) in the synchronous support device (3), the gear A (311) drives the shaft A (310) to rotate, and the shaft A (310) simultaneously drives the pin gear A (302) and the pin gear C (312) to rotate. When the pin gear A (302) rotates, it drives the pin gear B (306) to rotate simultaneously. When the pin gear A (302) rotates, it drives the slider group A (304) to slide along the guide groove in the slide support A (301) through the connecting rod B (303). When the pin gear B (306) rotates, it drives the slider group B (308) to slide along the guide groove in the slide support A (301) through the connecting rod C (307). The sliding direction of the slider group B (308) is opposite to that of the slider group A (304). When the pin gear C (312) rotates, it drives the pin gear D (315) to rotate simultaneously. When the pin gear C (312) rotates, it drives the slider group C (314) to slide along the guide groove in the slide support B (318) through the connecting rod D (313). When the pin gear D (315) rotates, it drives the slider group D (317) to slide along the guide groove in the slide support B (318) through the connecting rod E (316). The direction of the slider group C (314) is opposite to that of the slider group D (317). When the connecting rod B (303) and the connecting rod D (313) rotate, they drive the support leg A (305) to rotate. When the connecting rod C (307) and the connecting rod E (316) rotate, they drive the support leg B (309) to rotate. The rotating directions of the support leg A (305) and the support leg B (309) are opposite. The purpose is to solve the problem of collision and interference between the bottom assembly and the surrounding objects when the unmanned aerial vehicle drive group A (105) and the drive group B (107) rotate and push. It provides collision protection for the filming module (108).

2. A passive protection method for a dual-rotor unmanned aerial vehicle, specifically implemented by the unmanned aerial vehicle passive protection device of claim 1. In the event of a sudden crosswind or severe weather, the angle of the rotor can be adjusted according to the wind direction and wind speed. By adjusting the working direction of the rotor, the device can be pushed in the opposite direction to maintain a safe distance from the front obstacle when a collision is about to occur. The landing protection design at the bottom is integrated with the rotor adjustment for bidirectional output, which is used to retract the chassis to protect the bottom assembly when the device is about to collide. The method includes the following steps: S1, start the unmanned aerial vehicle (1) in the drive group A (105), drive group B (107), the unmanned aerial vehicle starts to fly, wherein the power module (113) is the power supply assembly of the whole unmanned aerial vehicle, the heat dissipation plate A (102), the heat dissipation plate B (103) are required for heat dissipation when the internal structure works or the control mainboard (112) works, and the ideal effect is achieved through front and rear heat dissipation; the top waterproof cover plate (114) is an arc-shaped vault structure, which reduces the impact force on the top of the unmanned aerial vehicle in rainy and snowy weather. Since the drive group fixed rack A (104) and the drive group fixed rack B (106) are synchronously connected, when the drive group fixed rack A (104) rotates, the drive group fixed rack B (106) is driven to rotate through the flexible coupling (110), the worm (109) drives the drive group fixed rack B (106) to rotate, forming synchronous rotation. Considering that if the unmanned aerial vehicle encounters strong convection weather, the body (101) will deform to a certain extent, in order to prevent the rotation of the drive group fixed rack A (104) from being interfered with when deforming, the flexible coupling (110) is embedded between the drive group fixed rack A (104) and the flexible coupling (110), solving such problems. S2, the unmanned aerial vehicle carries out passive protection to the whole device by controlling the mainboard (112), the details of which are that the collision sensor embedded in the body (101), the heat sink A (102) and the heat sink B (103) transmits signal data to the mainboard (112) in real time, when the unmanned aerial vehicle encounters signal interruption in severe weather or dense building groups, the unmanned aerial vehicle adjusts the protection measures according to the collision safety distance of the mainboard (112), when the unmanned aerial vehicle rolls at a large angle in strong convective or crosswind weather, the motor (201) is started, the output shaft of the motor (201) drives the synchronous pulley A (202) to rotate, the synchronous pulley A (202) drives the synchronous pulley B (204) to rotate through the belt (203), the synchronous pulley B (204) drives the connecting rod shaft A (205) to rotate, the connecting rod shaft A (205) drives the non-standard gear A (206), the non-standard gear B (207), the non-standard gear C (208) and the non-standard gear D (209) to rotate through the connecting rod A (210), the connecting rod shaft A (205) drives the chuck A (212) to rotate, the chuck A (212) drives the chuck B (216) to rotate through the crank A (213), the crank B (214) and the crank C (215), the chuck B (216) drives the worm gear (217) to rotate, the rotation of the non-standard gear A (206), the non-standard gear B (207), the non-standard gear C (208) and the non-standard gear D (209) corresponds to the contraction protection of the chassis of the synchronous support device (3), and the protection is designed to prevent the friction and collision between the bottom structure of the unmanned aerial vehicle (1) and the surrounding environment when the driving group fixed rack A (104) and the driving group fixed rack B (106) of the unmanned aerial vehicle (1) rotate to correct the body (101) against the wind, which is a passive protection for the bottom during the correction of the rollover of the unmanned aerial vehicle, and the specific steps of the rotation of the rotor of the unmanned aerial vehicle (1) are that when the worm gear (217) in the power device (2) rotates, the worm gear (217) drives the worm (109) to rotate, the worm (109) drives the driving group fixed rack B (106) and the flexible coupling (110) to rotate, the flexible coupling (110) drives the driving group fixed rack A (104) to rotate, when the unmanned aerial vehicle rolls on the side or the like, the driving group fixed rack A (104) and the driving group fixed rack B (106) are adjusted to rotate in time to correct the driving angle of the unmanned aerial vehicle, so that the unmanned aerial vehicle moves away from the collision body in the opposite direction; S3, when the non-standard gear A (206), non-standard gear B (207), non-standard gear C (208), non-standard gear D (209) in the power device (2) rotates intermittently meshing drive gear A (311) in the synchronous support device (3) rotates, gear A (311) drives shaft A (310) to rotate, shaft A (310) drives the pin gear A (302), pin gear C (312) to rotate, pin gear A (302) drives pin gear B (306) to rotate at the same time, pin gear A (302) drives slider group A (304) to slide along the guide slot in slide support A (301) through connecting rod B (303) when rotating, pin gear B (306) drives slider group B (308) to slide along the guide slot in slide support A (301) through connecting rod C (307) when rotating, the sliding direction of slider group B (308) is opposite to that of slider group A (304), pin gear C (312) drives pin gear D (315) to rotate at the same time, pin gear C (312) drives slider group C (314) to slide along the guide slot in slide support B (318) through connecting rod D (313) when rotating, pin gear D (315) drives slider group D (317) to slide along the guide slot in slide support B (318) through connecting rod E (316) when rotating, the direction of slider group C (314) is opposite to that of slider group D (317), connecting rod B (303) and connecting rod D (313) drive support leg A (305) to rotate when rotating, connecting rod C (307) and connecting rod E (316) drive support leg B (309) to rotate when rotating, the rotating direction of support leg A (305) is opposite to that of support leg B (309), the purpose is to solve the problem that the bottom assembly will collide with the surrounding objects when the unmanned aerial vehicle drive group A (105) and drive group B (107) rotate and push, and to provide collision protection for the filming module (108).

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