An air-land dual-use quadrotor UAV

Abstract

The present invention relates to the technical field of unmanned aerial vehicles, and discloses an air-land dual-purpose quadrotor unmanned aerial vehicle, including: a frame, two cameras are installed at the bottom of the frame, four landing hydraulic cylinders are installed at the bottom of the frame, and the telescopic ends of the four landing hydraulic cylinders are connected with two landing gears; a wing assembly for driving the frame to fly or travel on the ground; a protection assembly for protecting the camera; a spraying assembly for spraying a cleaning agent; through the cooperation of the frame, the landing hydraulic cylinders, the landing gears and the wing assembly, the frame can switch between a flight mode and a land travel mode according to the usage conditions, so as to meet different usage requirements, expand the usage range and increase the applicability; through the setting of shock-absorbing discs, part of the vibration received by the frame during land travel can be absorbed by the four shock-absorbing discs, reducing the wear of the frame and the wing assembly and extending its service life.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and particularly to an air-land dual-purpose quadrotor unmanned aerial vehicle. Background Art

[0002] An unmanned aerial vehicle is an aircraft that can fly without direct human piloting. In recent years, unmanned aerial vehicle technology has developed rapidly and is widely used in many fields such as military, commercial, agricultural, and scientific research. Existing unmanned aerial vehicles usually use motors and propellers as drives and are equipped with cameras and sensors.

[0003] Chinese Patent CN106915435B discloses "an unmanned aerial vehicle", which includes a main body, folding support arms, a landing gear module, and a propeller module. The main body includes an inner shell. The landing gear module has a landing gear connection part, and the propeller module has a propeller connection part. The folding support arms are connected between the landing gear module and the propeller module. When the unmanned aerial vehicle is flying, it is used to support and fix the landing gear module and the propeller module. When the unmanned aerial vehicle is stored, it is used for the folding and storage of the landing gear module and the propeller module. The landing gear module and the propeller module are cross-wrapped on the inner shell through the landing gear connection part and the propeller connection part to realize the rotation of the landing gear module and the propeller module relative to the main body. This patent solves the problems of large occupied space and inconvenience in carrying existing unmanned aerial vehicles.

[0004] However, in the prior art, there are the following problems:

[0005] 1. When using an unmanned aerial vehicle, it may occur that it is used in an environment where it is not convenient for the unmanned aerial vehicle to fly or the unmanned aerial vehicle needs to move closely to the ground. The existing unmanned aerial vehicles have poor applicability to such environments and working conditions. It is difficult for the unmanned aerial vehicle to fly closely to the ground, and it is easy to collide and cause damage to the unmanned aerial vehicle. Summary of the Invention

[0006] The purpose of the present invention is to provide an air-land dual-purpose quadrotor unmanned aerial vehicle to solve the above problems and overcome the defects of the prior art, as elaborated below.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A kind of air-land dual-purpose quadrotor UAV provided by the present invention includes: a frame, two cameras are installed at the bottom of the frame, four landing hydraulic cylinders are installed at the bottom of the frame, and the telescopic ends of the four landing hydraulic cylinders are connected with two landing gears; a wing assembly for driving the frame to fly or travel on the ground; a protection assembly for protecting the cameras; a spraying assembly for spraying a cleaning agent; the wing assembly is arranged on the frame, the protection assembly is arranged on the four landing hydraulic cylinders, and the spraying assembly is arranged on the protection assembly; the wing assembly includes four mounting arms, all of the four mounting arms are mounted on the frame, a connecting piece is rotatably mounted on the mounting arm, an installation frame is connected to the connecting piece, a motor is installed on the installation frame, a runner is rotatably mounted on the installation frame, the output end of the motor is connected to the runner, a propeller is connected to the runner, an adjusting hydraulic cylinder is installed on the mounting arm, an adjusting block is connected to the connecting piece, and the telescopic end of the adjusting hydraulic cylinder is hinged to the adjusting block.

[0009] Preferably, the four mounting arms are respectively located at the four corners of the top surface of the frame, and the two cameras are respectively located on the lower surfaces at both ends of the frame.

[0010] Preferably, a mounting disc is installed on the mounting arm, a shock-absorbing disc is installed on the mounting disc through a plurality of springs, and the four mounting frames respectively contact the four shock-absorbing discs during movement.

[0011] Preferably, there are two protection assemblies, and the two protection assemblies are respectively located below the two cameras. The protection assembly includes two upper connecting rods and two lower connecting rods. The two upper connecting rods are respectively hinged to the outer walls of the fixed sections of two of the landing hydraulic cylinders, and the two lower connecting rods are respectively hinged to the outer walls of the telescopic sections of two of the landing hydraulic cylinders. A connecting block is hinged between the lower connecting rod and the upper connecting rod on the landing hydraulic cylinder, a mounting plate is connected between the two connecting blocks, a transparent cover is connected to the mounting plate, and the two transparent covers are respectively located outside the two cameras during movement.

[0012] Preferably, the protection assembly further includes a slide rail, the slide rail is installed between the fixed sections of two of the landing hydraulic cylinders, a pull rod is slidably connected to the slide rail, an inner slider is connected to the outer wall of the transparent cover, a return spring rod is slidably connected to the inner wall of the inner slider, a support is connected to the end of the return spring rod away from the slide rail, two scraping bars are rotatably mounted on the support, and a curved rod is respectively hinged to the two scraping bars.

[0013] Preferably, both of the two curved rods are hinged to the pull rod, and a spring is arranged between the end of the return spring rod away from the support and the inner slider.

[0014] Preferably, both of the scraping bars are in contact with the transparent cover, and the tops of both of the scraping bars are slidably connected to the edge of the transparent cover.

[0015] The beneficial effects are as follows:

[0016] 1. For this air-land dual-use quadcopter drone, through the cooperation of the frame, landing hydraulic cylinders, landing gears and wing assemblies, the frame can switch between the flight mode or the land driving mode according to the usage conditions, so as to meet different usage requirements, expand the scope of use and increase the applicability; through the setting of the shock-absorbing discs, part of the vibration received by the frame during land driving can be absorbed by the four shock-absorbing discs, reducing the wear of the frame and the wing assemblies and extending their service life.

[0017] 2. For this air-land dual-use quadcopter drone, through the setting of the protection assembly, the two cameras can be protected by the two transparent covers during the operation process, avoiding damage to the cameras due to external collisions; through the setting of the two scraping bars, the two scraping bars can clean the transparent cover when the frame starts and ends moving, maintaining the transparency of the transparent cover and avoiding the surface of the transparent cover being attached with more dust after long-term use, which affects the clarity of the images collected by the cameras.

[0018] 3. For this air-land dual-use quadcopter drone, through the setting of the spraying assembly, the atomizing nozzles can spray cleaning agents on the surface of the transparent cover when the transparent cover starts to move, thereby improving the cleaning effect of the scraping bars, and the sprayed cleaning agents can also play a maintenance role on the transparent cover, maintaining the transparency of the transparent cover and extending the service life of the transparent cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is the external view schematic diagram of the present invention;

[0021] Figure 2 is the overall structure schematic diagram of the present invention;

[0022] Figure 3 is the frame structure schematic diagram of the present invention;

[0023] Figure 4 is the wing assembly structure schematic diagram of the present invention;

[0024] Figure 5 is the runner structure schematic diagram of the present invention;

[0025] Figure 6 is an enlarged schematic view of point A of the present invention Figure 5 ;

[0026] Figure 7 is a schematic view of the camera structure of the present invention

[0027] Figure 8 is a schematic view of the landing gear structure of the present invention

[0028] Figure 9 is a schematic view of the protection component structure of the present invention

[0029] Figure 10 is a schematic view of the transparent cover structure of the present invention

[0030] Figure 11 is a schematic view of the wiper strip structure of the present invention

[0031] Figure 12 is a schematic view of the spraying component structure of the present invention

[0032] Figure 13 is a schematic view of the cleaner tank structure of the present invention

[0033] The description of the reference numerals is as follows: 1, frame; 2, landing hydraulic cylinder; 3, landing gear; 4, wing assembly; 41, mounting arm; 42, connecting piece; 43, mounting bracket; 44, motor; 45, runner; 46, propeller; 47, adjusting block; 48, adjusting hydraulic cylinder; 49, mounting plate; 410, shock-absorbing disc; 5, protection component; 51, upper connecting rod; 52, lower connecting rod; 53, connecting block; 54, mounting plate; 55, transparent cover; 56, slide rail; 57, pull rod; 58, curved rod; 59, wiper strip; 510, support; 511, resilient rod; 512, inner slider; 6, spraying component; 61, cleaner tank; 62, air pipe; 63, airbag; 64, sliding frame; 65, sliding shaft; 66, abutting rod; 67, atomizing nozzle; 7, camera Detailed implementation manners

[0034] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other implementation manners obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope protected by the present invention

[0035] Embodiment 1

[0036] Please refer to Figure 1 - Figure 7, an air-land dual-use quadcopter drone, comprising: a frame 1, at the bottom of the frame 1, two cameras 7 are installed, and the two cameras 7 are respectively located on the lower surfaces at both ends of the frame 1. The two cameras 7 can collect image information during the movement of the frame 1. At the bottom of the frame 1, four landing hydraulic cylinders 2 are installed, and the telescopic ends of the four landing hydraulic cylinders 2 are connected to two landing gears 3; a wing assembly 4, used to drive the frame 1 to fly or travel on the ground. The wing assembly 4 is arranged on the frame 1. The wing assembly 4 includes four mounting arms 41, and the four mounting arms 41 are all mounted on the frame 1. The four mounting arms 41 are respectively located at the four corners of the top surface of the frame 1. A connecting member 42 is rotatably mounted on the mounting arm 41. An installation frame 43 is connected to the connecting member 42. A motor 44 is installed on the installation frame 43. The motor 44 is provided with a low-speed rotation mode. A runner 45 is rotatably mounted on the installation frame 43. The output end of the motor 44 is connected to the runner 45. A propeller 46 is connected to the runner 45. The four propellers 46 drive the frame 1 to fly by rotation. An adjustment hydraulic cylinder 48 is installed on the mounting arm 41. An adjustment block 47 is connected to the connecting member 42. The telescopic end of the adjustment hydraulic cylinder 48 is hinged to the adjustment block 47. When the adjustment hydraulic cylinder 48 extends, it uses a lever to drive the connecting member 42 to rotate away from the adjustment block 47. When the connecting member 42 rotates, it drives the installation frame 43 to turn downward. The installation frame 43 drives the runner 45 to turn synchronously. When the four runners 45 turn to be perpendicular to the ground, the four adjustment hydraulic cylinders 48 stop extending and enter the pressure-holding state. The four landing hydraulic cylinders 2 are contracted, and the four landing hydraulic cylinders 2 drive the two landing gears 3 to move upward, so that the four runners 45 are in contact with the ground. The motor 44 drives the runner 45 to rotate in the low-speed rotation mode, and the four runners 45 drive the frame 1 to travel on the ground. Thus, the frame 1 can switch between the flight mode and the land mode according to the actual working conditions, meeting different usage requirements; an installation disk 49 is installed on the mounting arm 41, and a shock-absorbing disk 410 is installed on the installation disk 49 through a plurality of springs. During the movement process, the four installation frames 43 are respectively in contact with the four shock-absorbing disks 410. When the installation frame 43 is perpendicular to the ground, the shock-absorbing disk 410 remains in contact with the installation frame 43. The plurality of springs between the shock-absorbing disk 410 and the installation disk 49 can play a shock-absorbing effect, so that during the ground travel process of the frame 1, the vibrations received by the four runners 45 are transmitted to the four installation frames 43, and the four shock-absorbing disks 410 respectively absorb the vibration forces on the four installation frames 43, achieving the shock-absorbing effect; through the cooperation of the frame 1, the landing hydraulic cylinders 2, the landing gears 3 and the wing assembly 4, the frame 1 can switch between the flight mode or the land travel mode according to the usage working conditions to meet different usage requirements, expanding the usage range and increasing the applicability; through the setting of the shock-absorbing disk 410, part of the vibrations received by the frame 1 during land travel can be absorbed by the four shock-absorbing disks 410, reducing the wear of the frame 1 and the wing assembly 4 and extending their service life.

[0037] Further, please refer toFigure 8 - Figure 11 The protective component 5 is used to protect the camera 7. The protective component 5 is arranged on the four landing hydraulic cylinders 2. There are two protective components 5, and the two protective components 5 are respectively located below the two cameras 7. The protective component 5 includes two upper connecting rods 51 and two lower connecting rods 52. The two upper connecting rods 51 are respectively hinged on the outer walls of the fixed sections of two of the landing hydraulic cylinders 2, and the two lower connecting rods 52 are respectively hinged on the outer walls of the telescopic sections of two of the landing hydraulic cylinders 2. A connecting block 53 is hinged between the lower connecting rod 52 and the upper connecting rod 51 on the landing hydraulic cylinder 2. An installation plate 54 is connected between the two connecting blocks 53. A transparent cover 55 is connected to the installation plate 54. The two transparent covers 55 are respectively located outside the two cameras 7 during the movement. When the landing hydraulic cylinder 2 contracts, the upper connecting rod 51 and the lower connecting rod 52 drive the connecting block 53 to move away from the landing hydraulic cylinder 2. The two connecting blocks 53 drive the transparent cover 55 to move synchronously through the installation plate 54, so that the transparent cover 55 moves to the periphery of the camera 7 to protect the camera 7, avoiding damage to the camera 7 due to collision with debris in the air or on the ground during the movement of the frame 1. The transparent cover 55 is transparent, having little impact on the field of view of the camera 7; The protective component 5 further includes a slide rail 56. The slide rail 56 is installed between the fixed sections of two of the landing hydraulic cylinders 2. A pull rod 57 is slidably connected to the slide rail 56. An inner slider 512 is connected to the outer wall of the transparent cover 55. A return spring rod 511 is slidably connected to the inner wall of the inner slider 512. One end of the return spring rod 511 away from the slide rail 56 is connected to a support 510. Two scraping bars 59 are rotatably installed on the support 510. Two curved rods 58 are respectively hinged on the two scraping bars 59. Both of the two curved rods 58 are hinged to the pull rod 57. The pull rod 57 can move up and down under the limit of the slide rail 56. A spring is arranged between one end of the return spring rod 511 away from the support 510 and the inner slider 512. Both of the two scraping bars 59 are in contact with the transparent cover 55. The tops of the two scraping bars 59 are slidably connected to the edges of the transparent cover 55. While the transparent cover 55 is moving, the pull rod 57 pulls the two scraping bars 59 through the two curved rods 58, so that the two scraping bars 59 slide along the outer surface of the transparent cover 55. When the transparent cover 55 covers the camera 7, the two scraping bars 59 are located at the connection between the transparent cover 55 and the installation plate 54, avoiding blocking the field of view of the camera 7. During the relative movement of the two scraping bars 59 on the surface of the transparent cover 55, the surface of the transparent cover 55 is cleaned to maintain the light transmittance of the transparent cover 55; Through the setting of the protective component 5, the two cameras 7 can be protected by the two transparent covers 55 during operation, avoiding damage to the cameras 7 due to external collision; Through the setting of the two scraping bars 59, the two scraping bars 59 can clean the transparent cover 55 when the frame 1 starts and ends moving, maintaining the transparency of the transparent cover 55, and avoiding the surface of the transparent cover 55 being attached with more dust after long-term use, which affects the clarity of the images collected by the camera 7.

[0038] Furthermore, please refer to Figure 12 - Figure 13 , a spraying assembly 6 for spraying a cleaning agent. The spraying assembly 6 is arranged on the protection assembly 5. There are two spraying assemblies 6, and the two spraying assemblies 6 are respectively arranged on the two protection assemblies 5. The spraying assembly 6 includes two cleaning agent tanks 61. Both of the two cleaning agent tanks 61 are installed on one of the mounting plates 54. The cleaning agent tank 61 is filled with a cleaning agent. An air pipe 62 is connected to the cleaning agent tank 61. One end of the air pipe 62 far away from the cleaning agent tank 61 is connected to an air bag 63. The air bag 63 is installed on one of the connecting blocks 53. Two sliding shafts 65 are installed on the connecting block 53. A sliding frame 64 is slidably installed on the two sliding shafts 65. Two abutting rods 66 are installed on the sliding frame 64. An atomizing nozzle 67 is installed on the spraying assembly 6. The two atomizing nozzles 67 are respectively located on both sides of the transparent cover 55. A spring is arranged between the sliding frame 64 and the connecting block 53. The upper connecting rod 51 and the lower connecting rod 52 connected to the connecting block 53 respectively contact the two abutting rods 66 on the sliding frame 64 during movement. During the movement process, the upper connecting rod 51 and the lower connecting rod 52 push the sliding frame 64 in a direction away from the air bag 63 through the two abutting rods 66. When the sliding frame 64 resets, it squeezes the air bag 63, so that the air bag 63 injects air into the cleaning agent tank 61 through the air pipe 62. The cleaning agent tank 61 uses the positive pressure effect to spray the cleaning agent inside it onto the transparent cover 55 through the atomizing nozzle 67. The two atomizing nozzles 67 spray the cleaning agent on both sides of the transparent cover 55 before the scraping strip 59 cleans, further improving the cleaning effect; through the arrangement of the spraying assembly 6, the atomizing nozzle 67 can spray the cleaning agent on the surface of the transparent cover 55 when the transparent cover 55 starts to move, thereby improving the cleaning effect of the scraping strip 59, and spraying the cleaning agent can also play a maintenance role for the transparent cover 55, maintaining the transparency of the transparent cover 55 and extending the service life of the transparent cover 55.

[0039] With the above structure, the working principle of this case is as follows: during the flight state of the frame 1, after the motor 44 starts, it drives the runner 45 to rotate, and the runner 45 drives the propeller 46 to rotate. The four propellers 46 drive the frame 1 to fly through rotation. When the frame 1 lands, the four landing cylinders 2 extend downward, increasing the distance between the two landing gears 3 and the frame 1. After the two landing gears 3 contact the ground, the staff can switch to the land mode by starting the four adjusting cylinders 48. When the adjusting cylinders 48 extend, they use the lever to drive the connecting piece 42 to rotate away from the adjusting block 47. When the connecting piece 42 rotates, it drives the mounting bracket 43 to turn downward. The mounting bracket 43 drives the runner 45 to turn synchronously. When the four runners 45 turn to be perpendicular to the ground, the four adjusting cylinders 48 stop extending and enter the pressure-holding state. The four landing cylinders 2 are retracted, and the four landing cylinders 2 drive the two landing gears 3 to move upward, so that the four runners 45 contact the ground. The motor 44 is provided with a low-speed rotation mode. The motor 44 drives the runner 45 to rotate in the low-speed rotation mode, and the four runners 45 drive the frame 1 to travel on the ground. Thus, the frame 1 can switch between the flight mode and the land mode according to the actual working conditions, meeting different usage requirements. The two cameras 7 can collect image information during the movement of the frame 1; when the mounting bracket 43 is about to be perpendicular to the ground during its movement, the mounting bracket 43 contacts the edge of the shock-absorbing disc 410 and slides along the edge of the shock-absorbing disc 410. When the mounting bracket 43 is perpendicular to the ground, the shock-absorbing disc 410 remains in contact with the mounting bracket 43. The multiple springs between the shock-absorbing disc 410 and the mounting disc 49 can play a shock-absorbing effect, so that during the ground travel of the frame 1, the vibrations received by the four runners 45 are transmitted to the four mounting brackets 43, and the four shock-absorbing discs 410 respectively absorb the shock forces on the four mounting brackets 43, achieving the shock-absorbing effect, avoiding accelerated wear due to long-term vibrations during the driving state, and reducing the service life; through the cooperation of the frame 1, the landing cylinders 2, the landing gears 3 and the wing assembly 4, the frame 1 can switch between the flight mode or the land travel mode according to the usage conditions to meet different usage requirements, expanding the usage range and increasing the applicability; through the setting of the shock-absorbing disc 410, part of the vibrations received by the frame 1 during land travel can be absorbed by the four shock-absorbing discs 410, reducing the wear of the frame 1 and the wing assembly 4 and extending their service life.

[0040] When the frame 1 is flying or starting to drive on land, the two landing gears 3 will rise to the uppermost position of their limited positions to prevent the landing gears 3 from affecting the movement of the frame 1. When the frame 1 is on standby or stops moving, the two landing gears 3 will descend to the lowest position of their limited positions, so that the two landing gears 3 can prop up the frame 1 and the wing assembly 4 for easy recovery. When the frame 1 is converted from standby to start moving, the four landing hydraulic cylinders 2 are retracted. When the landing hydraulic cylinders 2 are retracted, the upper connecting rod 51 and the lower connecting rod 52 drive the connecting block 53 to move away from the landing hydraulic cylinder 2. The connecting block 53 moves obliquely upward to the landing gear 3, and the two connecting blocks 53 drive the mounting plate 54 to move simultaneously. The mounting plate 54 drives the transparent cover 55 to move synchronously, so that the transparent cover 55 moves to the vicinity of the camera 7 to protect the camera 7, and prevent the camera 7 from being damaged by collision with debris in the air or on the ground during the movement of the rack 1. The transparent cover 55 is transparent, and has little effect on the field of view of the camera 7. When the transparent cover 55 moves, the transparent cover 55 moves obliquely upward, and the pull rod 57 is limited by the slide rail 56 to move up and down, so that when the transparent cover 55 moves, the pull rod 57 pulls the two scraping strips 59 through the two curved rods 58, so that the two scraping strips 59 slide along the outer surface of the transparent cover 55. When the transparent cover 55 moves, the pull rod 57 pulls the two scraping strips 59 through the two curved rods 58, and the two scraping strips 59 slide along the outer surface of the transparent cover 55. When the camera 7 is covered, the two scraper strips 59 are located at the connection between the transparent cover 55 and the mounting plate 54 to avoid blocking the field of view of the camera 7. When the two scraper strips 59 are pulled by the pull rod 57, the two scraper strips 59 apply a pulling force to the rebound rod 511 through the support 510. After the transparent cover 55 moves into place, the rebound rod 511 and the support 510 are also located at the connection between the transparent cover 55 and the mounting plate 54 to avoid blocking the field of view of the camera 7. When the frame 1 finishes moving, the landing gear 3 descends, and the transparent cover 55 is reset accordingly. During the reset of the transparent cover 55, the rebound rod 511 is brought by the support 510 through the elastic force of the spring between the rebound rod 511 and the inner slider 512. The two scraping strips 59 are moved to reset, and the two scraping strips 59 clean the surface of the transparent cover 55 during the relative movement with the surface of the transparent cover 55 to maintain the light transmittance of the transparent cover 55; through the setting of the protection component 5, the two cameras 7 can be protected by the two transparent covers 55 during the operation to prevent the cameras 7 from being damaged by external force collision; through the setting of the two scraping strips 59, the two scraping strips 59 can clean the transparent cover 55 when the frame 1 starts and ends the movement to maintain the transparency of the transparent cover 55, to prevent a lot of dust from adhering to the surface of the transparent cover 55 after long-term use, which affects the clarity of the image collected by the camera 7.

[0041] The detergent box 61 is filled with detergent, and the two sliding shafts 65 limit the sliding frame 64. When the landing gear 3 descends, the upper connecting rod 51 and the lower connecting rod 52, which are in contact with the two abutting rods 66 on the sliding frame 64, push the sliding frame 64 away from the airbag 63 through the two abutting rods 66 during the movement. When the landing gear 3 rises, the upper connecting rod 51 and the lower connecting rod 52 lose the thrust on the two abutting rods 66, and the sliding frame 64 is reset by the elastic force of the spring above it. When the sliding frame 64 is reset, it squeezes the airbag 63, so that the airbag 63 injects air into the detergent box through the air pipe 62. In 61, the detergent box 61 uses positive pressure to spray the detergent inside it onto the transparent cover 55 through the atomizing nozzle 67. The two atomizing nozzles 67 spray the detergent on both sides of the transparent cover 55 before the scraper 59 cleans, further improving the cleaning effect; through the setting of the spraying component 6, the atomizing nozzle 67 can spray the detergent on the surface of the transparent cover 55 when the transparent cover 55 starts to move, thereby improving the cleaning effect of the scraper 59, and the spraying detergent can also maintain the transparent cover 55, maintain the transparency of the transparent cover 55, and extend the service life of the transparent cover 55.

[0042] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A four-rotor drone for air and land use, characterized in that: include: A frame (1), wherein two cameras (7) are installed at the bottom of the frame (1), four lifting and lowering hydraulic cylinders (2) are installed at the bottom of the frame (1), and the telescopic ends of the four lifting and lowering hydraulic cylinders (2) are connected to two landing gears (3); A wing assembly (4) used to drive the frame (1) to fly or travel on the ground; A protective component (5) used to protect the camera (7); A spraying assembly (6) for spraying a cleaning agent; The wing assembly (4) is arranged on the frame (1), the protection assembly (5) is arranged on the four lifting and lowering hydraulic cylinders (2), and the spraying assembly (6) is arranged on the protection assembly (5); The protection assembly (5) comprises two upper connecting rods (51) and two lower connecting rods (52), the two upper connecting rods (51) being respectively hinged to the outer walls of the fixed sections of two of the lifting and lowering hydraulic cylinders (2), and the two lower connecting rods (52) being respectively hinged to the outer walls of the telescopic sections of two of the lifting and lowering hydraulic cylinders (2); A connecting block (53) is hinged between the lower connecting rod (52) and the upper connecting rod (51) on the lifting and lowering hydraulic cylinder (2); a mounting plate (54) is connected between the two connecting blocks (53); a transparent cover (55) is connected to the mounting plate (54); and the two transparent covers (55) are respectively located outside the two cameras (7) during movement; The protection assembly (5) further comprises a slide rail (56), wherein the slide rail (56) is installed between the fixed sections of two lifting and lowering hydraulic cylinders (2), a pull rod (57) is slidably connected to the slide rail (56), and an inner sliding block (512) is connected to the outer wall of the transparent cover (55); The inner wall of the inner sliding block (512) is slidably connected to a rebound rod (511), one end of the rebound rod (511) away from the slide rail (56) is connected to a support (510), two scraping strips (59) are rotatably mounted on the support (510), and the two scraping strips (59) are respectively hinged with a curved rod (58); The two scraping strips (59) are in contact with the transparent cover (55), and the tops of the two scraping strips (59) are slidably connected to the edge of the transparent cover (55).

2. The air-land dual-purpose quad-rotor drone according to claim 1, characterized in that: The wing assembly (4) comprises four mounting arms (41), the four mounting arms (41) are all mounted on the frame (1), a connecting piece (42) is rotatably mounted on the mounting arm (41), the connecting piece (42) is connected to a mounting frame (43), a motor (44) is mounted on the mounting frame (43), a rotating wheel (45) is rotatably mounted on the mounting frame (43), an output end of the motor (44) is connected to the rotating wheel (45), the rotating wheel (45) is connected to a propeller (46), an adjusting hydraulic cylinder (48) is mounted on the mounting arm (41), an adjusting block (47) is connected to the connecting piece (42), and a telescopic end of the adjusting hydraulic cylinder (48) is hinged to the adjusting block (47).

3. The air-land dual-purpose quad-rotor drone according to claim 2, characterized in that: The four mounting arms (41) are respectively located at the four corners of the top surface of the frame (1), and the two cameras (7) are respectively located at the lower surfaces at both ends of the frame (1).

4. The air-land dual-purpose quad-rotor drone according to claim 3, characterized in that: A mounting plate (49) is mounted on the mounting arm (41), a shock absorbing plate (410) is mounted on the mounting plate (49) via a plurality of springs, and the four mounting frames (43) are respectively in contact with the four shock absorbing plates (410) during movement.

5. The air-land dual-purpose quad-rotor drone according to claim 4, characterized in that: Two protection components (5) are provided, and the two protection components (5) are respectively located below the two cameras (7).

6. The air-land dual-purpose quad-rotor drone according to claim 5, characterized in that: The two curved rods (58) are both hinged to the pull rod (57), and a spring is provided between an end of the rebound rod (511) away from the support (510) and the inner sliding block (512).

Images