Paint spraying device for high-altitude operation of unmanned aerial vehicle

Abstract

The application discloses a high-altitude operation paint spraying device of an unmanned plane, which comprises a rotor unmanned plane, a suspension rack and a spray pipe are connected to the bottom of the rotor unmanned plane, a spray head is arranged at one end of the spray pipe, a picture-taking camera is arranged at the front end of the rotor unmanned plane, a disc lens box is fixedly connected to the spray pipe, a transmission shaft is arranged in the middle of the disc lens box, and a plurality of shielding lenses are arranged around the transmission shaft in the disc lens box. In the application, the disc lens box is arranged in front of the picture-taking camera, so that a plurality of shielding lenses can be conveniently carried, the plurality of shielding lenses in the disc lens box are arranged in a structure with synchronous revolution function, different shielding lenses can be conveniently delivered in front of the lens of the picture-taking camera, the shielding lenses have the effect of preventing paint spraying from polluting the lens of the picture-taking camera, and the revolution arrangement of the shielding lenses can timely replace the polluted shielding lens, so that the picture-taking camera can clearly collect the image of the storage tank.

Description

TECHNICAL FIELD

[0001] The application relates to the field of high-altitude spraying technology, in particular to a high-altitude operation paint spraying device of a unmanned aerial vehicle. BACKGROUND

[0002] High-altitude spraying operations are involved in high-end equipment manufacturing industries, petrochemical fields and aviation equipment industries, and the high-altitude spraying operations usually use unmanned aerial vehicles for auxiliary spraying, such as high-altitude spraying of viaduct track related buildings, high-altitude spraying of petrochemical storage tanks in the petrochemical field, and high-altitude operation spraying of large passenger planes. Among them, the petrochemical storage tank is a container for storing substances such as oil, natural gas, chemicals and liquefied gas, and is commonly used in industrial production, trade and transportation, and is also an important infrastructure in the oil, chemical, grain and oil, food, fire fighting, transportation, metallurgy and national defense industries, among which oil is an indispensable raw material in chemical production and is stored by petrochemical storage tanks. The petrochemical storage tank is divided into mobile and fixed types according to function, and the fixed type is mostly in a vertical state and has a large volume and a high height. The inside and outside of such a storage tank need to be treated for corrosion and rust prevention during use.

[0003] At present, the external part of the fixed storage tank may crack and fall off during use, which affects the service life of the storage tank, so regular cleaning and spraying treatment are needed. When spraying treatment is needed, the common spraying treatment method in the prior art is to use a ladder to erect workers to the position that needs to be repainted, and then use a paintbrush or a paint spraying gun to repaint the high-rise building. However, this kind of paint spraying method has the disadvantages of high labor intensity, low spraying efficiency and low safety.

[0004] The patent for invention with publication number CN111487994B proposes a super large high-rise building repainting method based on a unmanned aerial vehicle, relating to the field of environmental protection. It includes determining the takeoff point and reference center of the unmanned aerial vehicle, establishing a three-dimensional coordinate system, determining the flight trajectory and flight parameters of the unmanned aerial vehicle, pre-shooting the parts on the unmanned aerial vehicle that do not need to be repainted, and obtaining the standard RGB value range, judging the position on the high-rise building that needs to be repainted according to the video during the flight of the unmanned aerial vehicle, slowing down the unmanned aerial vehicle and capturing real-time pictures through the camera, and when the average RGB value of the pictures is not within the standard RGB value range, preparing to start repainting, adjusting the distance between the unmanned aerial vehicle and the outer wall of the high-rise building, adjusting the balance of the unmanned aerial vehicle, and repainting. The application preliminarily determines the distance between the unmanned aerial vehicle and the outer wall of the high-rise building through the flight trajectory, and adjusts the distance between the unmanned aerial vehicle and the outer wall of the high-rise building when repainting is needed, thereby enhancing the accuracy of paint spraying.

[0005] The invention patent with the publication number CN106347667B proposes a plant protection unmanned aerial vehicle automatic spraying method and device based on distance and image detection, which measures whether the area where the unmanned aerial vehicle flies has objects and the distance between the objects and the unmanned aerial vehicle by using a distance measuring module, and further analyzes whether the objects are crops by using image analysis technology when the distance between the objects and the unmanned aerial vehicle is within the target distance, so as to achieve the effect of automatic and accurate pesticide spraying.

[0006] However, the above-mentioned prior art still has defects in specific implementation: the petroleum and chemical storage tank is usually a circular tank structure, when the unmanned aerial vehicle carrying the spraying equipment flies around the tank body and sprays, the spray generated by spraying is prone to swing, however, the swing is easy to contaminate the camera lens, thereby affecting the image quality, for example, the camera captures real-time pictures to determine whether to paint in the above-mentioned one kind of unmanned aerial vehicle based super large high-rise building paint repair method, however, the spray pipe carried by the unmanned aerial vehicle is in the process of spraying, in the complex and changeable high-altitude environment, there is a problem of paint contaminating the camera lens, thereby affecting the paint repair; the above-mentioned one kind of plant protection unmanned aerial vehicle automatic spraying method and device based on distance and image detection also does not disclose how to timely handle the technical solution without affecting the operation when the image taking lens is contaminated.

[0007] Therefore, the present application proposes an unmanned aerial vehicle high-altitude operation paint spraying device. SUMMARY

[0008] The purpose of the present application is to solve the problems proposed in the background art, and the unmanned aerial vehicle high-altitude operation paint spraying device is proposed.

[0009] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0010] The unmanned aerial vehicle high-altitude operation paint spraying device comprises a rotor unmanned aerial vehicle, a suspension rack and a spray pipe connected to the bottom of the rotor unmanned aerial vehicle, a spray head arranged at one end of the spray pipe, an image taking camera arranged at the front end of the rotor unmanned aerial vehicle, a disc lens box fixedly connected to the spray pipe, a transmission shaft arranged at the middle part of the disc lens box, a plurality of shielding lenses arranged around the transmission shaft in the disc lens box, the plurality of shielding lenses revolving around the axis of the transmission shaft when the transmission shaft rotates, a butt joint sleeve fixedly arranged at the back of the disc lens box close to the top, the butt joint sleeve sealingly sleeving the outside of the lens of the image taking camera, a guide sleeve coaxial with the butt joint sleeve fixedly connected to the front of the disc lens box, an isolation sleeve with axial movement function arranged in the guide sleeve, a sealing ring arranged at one end of the isolation sleeve facing the inner cavity of the disc lens box, and a control mechanism arranged at the front of the disc lens box for controlling the axial movement of the isolation sleeve.

[0011] Further description of the above-mentioned technical scheme:

[0012] The transmission shaft is fixedly sleeved with a transmission gear located in the disc lens box, an inner ring gear is fixedly sleeved on the inner circumferential wall of the disc lens box, the outer circumferential wall of the shielding lens is sleeved with an outer ring gear engaged with the inner ring gear and the transmission gear, the two ends of the outer ring gear are provided with annular rubber coverings located on the two sides of the shielding lens, and the two sides of the annular rubber coverings abut against the two sides in the disc lens box.

[0013] As a further description of the above technical solution:

[0014] The back of the disc lens box is fixedly connected with an inlet and outlet pipe close to the bottom, the caliber of the inlet and outlet pipe is greater than the diameter of the addendum circle of the outer ring gear, the distance from the axis of the inlet and outlet pipe and the outer ring gear to the axis of the transmission shaft is equal, and a plug is detachably connected in the inlet and outlet pipe.

[0015] As a further description of the above technical solution:

[0016] The control mechanism comprises a transmission ring gear and a transmission combination, the transmission ring gear is fixedly sleeved on the outside of the isolation sleeve, the isolation sleeve and the guide sleeve are screw-connected, and the transmission combination is used for controlling the forward and reverse rotation of the isolation sleeve.

[0017] As a further description of the above technical solution:

[0018] The transmission combination comprises a transmission ring, an arc-shaped rack and an intermediate gear, one side of the transmission ring is fixedly connected with a coaxial adapter sleeve through a connecting rod, one end of the adapter sleeve is fixedly connected with the transmission shaft, the arc-shaped rack is fixedly arranged on the inner circumferential wall of the transmission ring and is engaged with the transmission ring gear, the number of the arc-shaped racks is at least three and they are uniformly distributed in the circumferential direction of the transmission ring, the intermediate gear is rotatably connected to the front side of the disc lens box and is engaged with the transmission ring gear outside, and a torsion spring is arranged between the intermediate gear and the disc lens box.

[0019] As a further description of the above technical solution:

[0020] The outside of the isolation sleeve is sleeved with a corrugated protective sleeve located between the guide sleeve and the transmission ring gear.

[0021] As a further description of the above technical solution:

[0022] The bottom of the outer circumferential wall of the disc lens box is fixedly connected with an adapter plate, the top of the adapter plate is fixedly connected with a sliding sleeve sleeved on the outside of the nozzle, the outer circumferential wall of the sliding sleeve is screw-connected with a locking bolt, and the butt joint sleeve is nested and sealed with the rubber sleeve.

[0023] As a further description of the above technical solution:

[0024] The front end of the rotor unmanned aerial vehicle is fixedly connected with a control motor below the image-taking camera, and the output shaft of the control motor and the other end of the transmission shaft are in sliding separable engagement.

[0025] In summary, due to the adoption of the above technical solutions, the present application has the following advantages:

[0026] 1. In the present application, the disc-shaped lens box is arranged in front of the image-taking camera, so that multiple shielding lenses can be conveniently carried, and the multiple shielding lenses in the disc-shaped lens box are arranged in a structure with synchronous revolution function, so that different shielding lenses can be conveniently delivered in front of the lens of the image-taking camera.

[0027] 2. In the present application, the isolation sleeve is arranged on the front side of the disc-shaped lens box, and when the isolation sleeve is pressed against the current shielding lens, the other shielding lenses in the disc-shaped lens box are in an isolated state from the outside world, so that the un-contaminated shielding lenses can be prevented from being contaminated.

[0028] 3. In the present application, the isolation sleeve arranged on the front side of the disc-shaped lens box is axially movable, and then the outer gear ring is arranged on the outer periphery of each shielding lens, and the annular rubber edge is arranged on both ends of the outer gear ring and located on both sides of the shielding lens, and the annular rubber edge is in abutment with the inner side wall of the disc-shaped lens box.

[0029] 4. In the present application, the transmission gear is arranged in the middle of the image-taking camera, and the inner gear ring is arranged on the inner periphery wall of the disc-shaped lens box, and the outer gear ring on the outer periphery of the shielding lens is simultaneously engaged with the transmission gear and the inner gear ring, so that the multiple shielding lenses can rotate while revolving.

[0030] 5. In the present application, the inlet and outlet pipe is arranged on the bottom of the rear side of the disc-shaped lens box, and the plug is detachably connected to the inlet and outlet pipe. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The structure diagram of the unmanned aerial vehicle high-altitude operation paint spraying device is provided in the present application.

[0032] Figure 2 The structure diagram of the unmanned aerial vehicle high-altitude operation paint spraying device is provided in the present application. Figure 1A schematic diagram of the bottom structure;

[0033] Figure 3 This is a schematic diagram of the overall structure of the disc-shaped lens box, isolation sleeve and control mechanism of the drone high-altitude painting device proposed in this invention;

[0034] Figure 4 This is a schematic diagram of the structure of the disc-shaped lens box, isolation sleeve, and control mechanism of the UAV high-altitude painting device proposed in this invention after being exploded and unfolded.

[0035] Figure 5 for Figure 4 A schematic diagram of the structure on the back;

[0036] Figure 6 This is a schematic diagram of the control motor of the drone high-altitude painting device proposed in this invention.

[0037] Legend:

[0038] 1. Rotary-wing UAV; 2. Suspension frame; 3. Nozzle; 4. Nozzle head; 5. Imaging camera; 6. Disc lens box; 61. Docking sleeve; 611. Sealing sleeve; 62. Guide sleeve; 63. Internal gear ring; 64. Inlet / outlet pipe; 65. Connecting plate; 651. Sliding sleeve; 6511. Locking bolt; 7. Drive shaft; 71. Drive gear; 8. Shielding lens; 81. External gear ring; 811. Annular rubber edging; 9. Isolation sleeve; 91. Sealing ring; 101. Control mechanism; 1011. Drive gear ring; 1012. Transmission assembly; 10121. Drive ring; 101211. Adapter sleeve; 10122. Arc rack; 10123. Intermediate gear; 102. Sealing; 104. Corrugated protective sleeve; 105. Control motor. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0040] Please see Figures 1-6The unmanned aerial vehicle high-altitude operation paint spraying device is used for spraying anticorrosive and antirust paint on the outer wall and top of an oil and chemical storage tank, comprising a rotor unmanned aerial vehicle 1, a suspension rack 2 and a spray pipe 3 connected to the bottom of the rotor unmanned aerial vehicle 1, the suspension rack 2 is used for suspending a small compressor, a gas cylinder and a medicine bottle, the spray pipe 3 is fixedly installed on the suspension rack 2, one end of the spray pipe 3 is provided with a spray head 4, the spray head 4 is used for spraying paint, the front end of the rotor unmanned aerial vehicle 1 is provided with a picture taking camera 5, the picture taking camera 5 has the same function as the camera in the background technology of the super large high-rise building paint supplementing method based on an unmanned aerial vehicle.

[0041] In the technical solution, the disc lens box 6 is fixedly connected to the spray pipe 3, the middle part of the disc lens box 6 is provided with a transmission shaft 7, the transmission shaft 7 is coaxial with the disc lens box 6, the disc lens box 6 is a hollow structure, a plurality of shielding lenses 8 are arranged around the transmission shaft 7 in the disc lens box 6, the shielding lenses 8 are used for shielding paint mist, when the transmission shaft 7 rotates, the plurality of shielding lenses 8 revolve around the axis of the transmission shaft 7, the transmission shaft 7 is an input shaft for controlling the revolution of the plurality of shielding lenses 8, the shielding lenses 8 move when revolving, preferably, a transmission gear 71 is fixedly sleeved on the transmission shaft 7 and located in the disc lens box 6, an inner gear ring 63 is fixedly sleeved on the inner wall of the disc lens box 6, an outer gear ring 81 is sleeved on the outer wall of the shielding lenses 8 and engages with the inner gear ring 63 and the transmission gear 71, so that when the transmission shaft 7 rotates, the transmission gear 71 drives the inner gear ring 63 to roll, and in turn drives the shielding lenses 8 to revolve, and the shielding lenses 8 also produce the effect of rotation at the same time.

[0042] The back of the disc lens box 6 is fixedly provided with a butt joint sleeve 61 close to the top, the butt joint sleeve 61 is sealingly sleeved outside the lens of the picture taking camera 5, the front of the disc lens box 6 is fixedly connected with a guide sleeve 62 coaxial with the butt joint sleeve 61, the butt joint sleeve 61 and the guide sleeve 62 form a picture taking channel of the lens of the picture taking camera 5, and when the shielding lenses 8 move between the butt joint sleeve 61 and the guide sleeve 62, the shielding lenses 8 can block the lens outer surface of the picture taking camera 5 from being polluted by paint mist, that is, the paint pollutants will adhere to the shielding lenses 8, and then the transmission shaft 7 is controlled to rotate in time to switch the clean shielding lenses 8 between the butt joint sleeve 61 and the guide sleeve 62, so as to ensure that the lens of the picture taking camera 5 can take pictures in time.

[0043] Further, the guide sleeve 62 is provided with an isolation sleeve 9 having an axial movement function, and the isolation sleeve 9 is provided with a sealing ring 91 at one end facing the inner cavity of the disc-shaped lens box 6. When the isolation sleeve 9 moves to the limit position in the guide sleeve 62, the sealing ring 91 will be pressed on the front surface of the current shielding lens 8. At this time, the external air and other shielding lenses 8 in the disc-shaped lens box 6 are in an isolated state, which can effectively prevent paint mist from polluting the clean shielding lenses 8 in the disc-shaped lens box 6. The above-mentioned isolation sleeve 9 is provided with axial sliding, so that when different shielding lenses 8 need to be switched, the isolation sleeve 9 is controlled to slide outward, so that the sealing ring 91 is separated from the current shielding lens 8, which can effectively prevent the sealing ring 91 from scratching the paint on the current shielding lens 8, thereby preventing the formation of paint falling deposits in the disc-shaped lens box 6, and having the advantage of preventing paint deposits from polluting the environment in the disc-shaped lens box 6.

[0044] The front of the disc-shaped lens box 6 is provided with a control mechanism 101 for controlling the axial movement of the isolation sleeve 9. Preferably, the control mechanism 101 includes a transmission gear ring 1011 and a transmission combination 1012. The transmission gear ring 1011 is fixedly sleeved outside the isolation sleeve 9, and the isolation sleeve 9 and the guide sleeve 62 are screwed together. When the isolation sleeve 9 rotates, it will produce an axial movement effect under the effect of screw transmission. This kind of setting makes the control of the axial movement of the isolation sleeve 9 more labor-saving, that is, compared with the structure using an electric telescopic rod to control the movement of the isolation sleeve 9, it has the advantage of large control force. The transmission combination 1012 is used to control the forward and reverse rotation of the isolation sleeve 9. The transmission combination 1012 can be a structure composed of a driving motor and a driving gear. In use, the driving motor is installed on the front side of the disc-shaped lens box 6, the driving gear is fixedly connected with the output shaft of the driving motor, and then the driving gear is engaged with the transmission gear ring 1011 outside the isolation sleeve 9. Finally, by starting the driving motor to rotate forward and backward, the forward and backward rotation of the isolation sleeve 9 can be controlled.

[0045] In the embodiment, the preferred transmission combination 1012 comprises a transmission ring 10121, an arc-shaped rack 10122 and an intermediate gear 10123, one side of the transmission ring 10121 is fixedly connected with a coaxial adapter sleeve 101211 through a connecting rod, the adapter sleeve 101211 is fixedly connected with one end of the transmission shaft 7, the arc-shaped rack 10122 is fixedly arranged on the inner circumferential wall of the transmission ring 10121 and is in meshing cooperation with the transmission gear ring 1011, the number of the arc-shaped rack 10122 is at least three and is uniformly distributed in the circumferential direction of the transmission ring 10121, the intermediate gear 10123 is rotatably connected to the front side of the disc lens box 6 and is in external meshing cooperation with the transmission gear ring 1011, so that when the transmission shaft 7 rotates to drive the sun gear 7 to switch, one of the arc-shaped racks 10122 will first contact the transmission gear ring 1011, then drive the isolation sleeve 9 to rotate away from the currently switched contaminated sun gear 8, the isolation sleeve 9 rotates to drive the intermediate gear 10123 to rotate, at the same time, the transmission gear ring 1011 will be dislocated relative to the intermediate gear 10123 and the arc-shaped rack 10122, a torsion spring (not shown in the figure) is arranged between the intermediate gear 10123 and the disc lens box 6, that is, when the intermediate gear 10123 is driven to rotate, the torsion spring will be compressed, at the moment when the arc-shaped rack 10122 is separated from the transmission gear ring 1011, the sun gear 8 is switched, the torsion spring will push the intermediate gear 10123 to flip, and then drive the isolation sleeve 9 to flip through the transmission gear ring 1011, so that the sealing ring 91 on the isolation sleeve 9 is re-pressed on the front side wall of the switched clean sun gear 8, the mechanical association structure for controlling the switching of the sun gear 8 and the forward and reverse rotation of the isolation sleeve 9 by controlling the rotation of the transmission shaft 7 has the advantage of more reliable transmission, and the failure rate is greatly reduced.

[0046] Wherein, the isolation sleeve 9 is externally sleeved with a corrugated protective sleeve 104 between the guide sleeve 62 and the transmission gear ring 1011, the corrugated protective sleeve 104 avoids paint mist from polluting the exposed part of the thread on the isolation sleeve 9 and the guide sleeve 62, and ensures that the isolation sleeve 9 and the guide sleeve 62 can be rotatably engaged without jamming.

[0047] In the embodiment, the outer gear ring 81 is provided with annular rubber edge 811 on both sides of the sun gear 8, it should be noted that the outer gear ring 81 is also made of rubber material, the outer gear ring 81 is sleeved on the outside of the sun gear 8 in an interference fit, the two sides of the annular rubber edge 811 abut against the two sides in the disc lens box 6, at this time, the exposed part of the single sun gear 8 is in a state of being surrounded by the annular rubber edge 811 and the disc lens box 6 to isolate the external air, so that each sun gear 8 has the advantage of self-isolation protection. It should be noted that due to the revolution and rotation of the outer gear ring 81, the resistance of the annular rubber edge 811 relative to the disc lens box 6 is greatly reduced, thereby reducing the load of the transmission shaft 7.

[0048] Further, the back of the disc lens box 6 is fixedly connected with an access pipe 64 close to the bottom, the caliber of the access pipe 64 is greater than the diameter of the addendum circle of the outer gear ring 81, the distance from the axis of the access pipe 64 and the outer gear ring 81 to the axis of the transmission shaft 7 is equal, the access pipe 64 is a channel for dismounting and mounting the shielding lens 8, when the shielding lens 8 needs to be dismounted, the suction cup tool is used to adsorb on the shielding lens 8 to be replaced, then the shielding lens 8 and the outer gear ring 81 thereon are taken out by pulling outward, and the shielding lens 8 is reset by using the suction cup tool after being cleaned. Therefore, it has the advantage that the shielding lens 8 is more convenient to clean and replace. The access pipe 64 is detachably connected with a plug 102, the plug 102 can be screw-connected with the access pipe 64 or be buckle-connected, it is necessary to note that the plug 102 is flush with one side in the disc lens box 6 after being connected with the access pipe 64, the purpose is to ensure that the annular rubber edge 811 can be attached to the inner end face of the plug 102 when passing through.

[0049] In the embodiment, the bottom of the outer peripheral wall of the disc lens box 6 is fixedly connected with an adapter plate 65, the top of the adapter plate 65 is fixedly connected with a sliding sleeve 651 sleeved outside the nozzle 3, the outer peripheral wall of the sliding sleeve 651 is screwed with a locking bolt 6511, when the locking bolt 6511 is loosened, the entire disc lens box 6 can be moved, so that the butt joint sleeve 61 can be separated from the lens of the image taking camera 5, the setting facilitates the maintenance of the image taking camera 5, the butt joint sleeve 61 is nested and sealed with the sealing rubber sleeve 611, and the sealing rubber sleeve 611 can improve the sealing degree after the lens of the image taking camera 5 is butt jointed with the butt joint sleeve 61.

[0050] Further, the front end of the rotor unmanned aerial vehicle 1 is fixedly connected with a control motor 105 located below the image taking camera 5, the output shaft of the control motor 105 and the other end of the transmission shaft 7 are slidingly and separably matched, the output shaft of the control motor 105 and the transmission shaft 7 can adopt a spline matched connection structure, and the rotation of the control motor 105 provides driving force to the transmission shaft 7.

[0051] Working principle: when in use, the rotor unmanned aerial vehicle 1 is lifted to one side of the storage tank, and then the outer wall of the storage tank is sprayed with paint. During the spraying process in the air, when turbulent airflow occurs, part of the paint mist sprayed by the spray head 4 will adhere to the current shielding lens 8, so that the image taking camera 5 cannot take clear images and snapshots. At this time, the control motor 105 can be remotely started, the transmission shaft 7 rotates, the transmission gear 71 drives all the outer gear rings 81 to roll synchronously along the inner gear ring 63, and all the shielding lenses 8 will revolve and rotate. At the same time, the adapter sleeve 101211 drives the transmission ring 10121 to rotate, one of the arc-shaped racks 10122 will contact and drive the transmission gear 1011 to rotate, the isolation sleeve 9 will move away from the current contaminated shielding lens 8 under the rotation effect, the intermediate gear 10123 rotates, the torsional spring is compressed, and the sealing ring 91 is separated from the current contaminated shielding lens 8. When the clean shielding lens 8 is brought to the interface sleeve 61 and the guide sleeve 62, the arc-shaped rack 10122 mentioned above will be separated from the transmission gear 1011, the torsional spring pushes the intermediate gear 10123 to reset, and then drives the isolation sleeve 9 to reset through the transmission gear 1011, and the sealing ring 91 is pressed against the front side of the clean shielding lens 8, so that the image taking camera 5 can take clear images and snapshots in time.

[0052] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacements or changes to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A drone-based high-altitude painting device, comprising a rotary-wing drone (1), wherein a suspension frame (2) and a nozzle (3) are connected to the bottom of the rotary-wing drone (1), a nozzle (4) is provided at one end of the nozzle (3), and an image-capturing camera (5) is provided at the front end of the rotary-wing drone (1), characterized in that, A disc-shaped lens box (6) is fixedly connected to the nozzle (3). A drive shaft (7) is provided in the middle of the disc-shaped lens box (6). The disc-shaped lens box (6) contains a number of shielding lenses (8) arranged around the drive shaft (7). When the drive shaft (7) rotates, the shielding lenses (8) revolve around the axis of the drive shaft (7). A docking sleeve (61) is fixedly provided near the top on the back of the disc-shaped lens box (6). The docking sleeve (61) is sealed outside the lens of the imaging camera (5). A guide sleeve (62) coaxial with the docking sleeve (61) is fixedly connected to the front of the disc-shaped lens box (6). 2) An isolation sleeve (9) with axial movement function is provided inside. A sealing ring (91) is provided on one end of the isolation sleeve (9) facing the inner cavity of the disc lens box (6). A control mechanism (101) for controlling the axial movement of the isolation sleeve (9) is provided on the front of the disc lens box (6). A transmission gear (71) located inside the disc lens box (6) is fixedly sleeved on the transmission shaft (7). An internal gear ring (63) is fixedly sleeved on the inner peripheral wall of the disc lens box (6). An external gear ring (81) that meshes with the internal gear ring (63) and the transmission gear (71) is sleeved on the outer periphery of the shielding lens (8). Both ends of the external gear ring (81) are provided with a sealing ring located on the shielding lens. The annular rubber edging (811) on both sides of the lens (8) abuts against the two sides inside the disc lens box (6). The control mechanism (101) includes a transmission gear ring (1011) and a transmission assembly (1012). The transmission gear ring (1011) is fixedly sleeved on the outside of the isolation sleeve (9). The isolation sleeve (9) and the guide sleeve (62) are screwed together. The transmission assembly (1012) is used to control the forward and reverse rotation of the isolation sleeve (9). The transmission assembly (1012) includes a transmission ring (10121), an arc-shaped rack (10122), and an intermediate gear (10123). The transmission ring (10121) 1) One side is fixedly connected to a coaxial adapter sleeve (101211) via a connecting rod. The adapter sleeve (101211) is fixedly connected to one end of the transmission shaft (7). The arc-shaped rack (10122) is fixedly installed on the inner circumferential wall of the transmission ring (10121) and meshes with the transmission gear ring (1011). The number of arc-shaped racks (10122) is at least three and they are evenly distributed circumferentially relative to the transmission ring (10121). The intermediate gear (10123) is rotatably connected to the front side of the disc lens box (6) and meshes with the transmission gear ring (1011). A torsion spring is provided between the intermediate gear (10123) and the disc lens box (6).

2. The UAV high-altitude painting device according to claim 1, characterized in that, The disc-shaped lens box (6) has an inlet / outlet tube (64) fixedly connected to the back near the bottom. The diameter of the inlet / outlet tube (64) is larger than the diameter of the tooth tip circle of the outer gear ring (81). The distance from the axis of the inlet / outlet tube (64) and the axis of the outer gear ring (81) to the axis of the drive shaft (7) is equal. A plug (102) is detachably connected inside the inlet / outlet tube (64).

3. The UAV high-altitude painting device according to claim 1, characterized in that, The outer side of the isolation sleeve (9) is fitted with a corrugated protective sleeve (104) located between the guide sleeve (62) and the transmission gear ring (1011).

4. The UAV high-altitude painting device according to claim 1, characterized in that, A connecting plate (65) is fixedly connected to the bottom of the outer peripheral wall of the disc lens box (6). A sliding sleeve (651) sleeved on the outside of the nozzle (3) is fixedly connected to the top of the connecting plate (65). A locking bolt (6511) is screwed through the outer peripheral wall of the sliding sleeve (651). A sealing rubber sleeve (611) is nested inside the docking sleeve (61).

5. The UAV high-altitude painting device according to claim 4, characterized in that, The front end of the rotary-wing UAV (1) is fixedly connected to a control motor (105) located below the image-capturing camera (5). The output shaft of the control motor (105) and the other end of the transmission shaft (7) can slide and separate.

Images