Automatic cleaning device of unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicle maintenance, and discloses an unmanned aerial vehicle automatic cleaning device which comprises four layers of parallel transverse plates, a lifting platform for stopping an unmanned aerial vehicle, a lifting mechanism for driving the lifting platform, a positioning and clamping mechanism for fixing the unmanned aerial vehicle and a cleaning mechanism. The adjacent transverse plates are fixed through a plurality of supporting rods, and notches are formed in the middles of the three transverse plates located on the upper portion. The lifting mechanism is installed on the lowermost transverse plate, and the output end of the lifting mechanism is connected with the lifting platform after passing through the notches. And the positioning and clamping mechanism is mounted on the two transverse plates in the middle. According to the invention, unmanned automatic cleaning operation can be realized, and the working efficiency is improved; by arranging the lifting platform, the positioning and clamping mechanism and the multiple sets of automatic cleaning mechanisms, automatic control over the whole process from stopping, clamping, descending to cleaning of the unmanned aerial vehicle can be achieved, manual intervention is avoided, and the cleaning efficiency and consistency are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of drone maintenance, and particularly to an automatic drone cleaning device. Background Art

[0002] With the wide application of drones in fields such as agricultural inspection, urban monitoring, and logistics transportation, the maintenance of drones has become particularly important. Especially after long-term operation in outdoor environments, foreign objects such as dust, leaves, and impurities are extremely likely to adhere to the surface of drones. If these foreign objects are not cleaned in time, it will not only affect the flight performance and sensor accuracy of the drones, but may also lead to component overheating, system failures, and even flight accidents. Therefore, how to clean drones efficiently and reliably has become an important technical issue in the current field of drone operation and maintenance.

[0003] Currently, the cleaning of drones mostly relies on manual operation, and is carried out by means such as brushing or air blowing. This method not only has low efficiency, but also has problems such as incomplete cleaning, high operation intensity, and high labor costs. Among some existing automatic cleaning devices, there are problems such as complex structures, cumbersome operations, and the inability to comprehensively clean the complex structures of drones.

[0004] In view of the above problems existing in the prior art, the inventor believes that current drone cleaning devices generally have technical defects such as many cleaning dead corners, limited cleaning ranges, unstable positioning, and the inability to adapt to drones with different structures. Therefore, there is an urgent need for an automatic drone cleaning device with a reasonable structure, high degree of automation, and better cleaning effect to improve the maintenance efficiency and operation reliability of drones. Summary of the Invention

[0005] To solve the technical problems proposed in the background art, the present invention provides an automatic drone cleaning device.

[0006] The present invention is implemented by the following technical solutions: The automatic drone cleaning device includes four mutually parallel horizontal plates, a lifting platform for the drone to stay, a lifting mechanism for driving the lifting platform, a positioning and clamping mechanism for fixing the drone, and a cleaning mechanism.

[0007] Adjacent horizontal plates are fixed by a plurality of support rods, and gaps are provided in the middle of the three upper horizontal plates.

[0008] The lifting mechanism is installed on the lowermost horizontal plate, and the output end of the lifting mechanism is connected to the lifting platform after passing through each gap.

[0009] The positioning and clamping mechanism is installed on the two middle horizontal plates.

[0010] There are at least three groups of cleaning mechanisms arranged circumferentially with the center line of the horizontal plate as the axis. The cleaning mechanism includes a circumferential sliding unit and a cleaning unit. The circumferential sliding unit is used to drive the cleaning unit to perform reciprocating circumferential motion along the center line of the horizontal plate.

[0011] The cleaning unit includes a horizontally movably arranged brush and a brush motor for driving the brush to rotate.

[0012] In the present invention, the drone to be cleaned stays on the lifting platform, and then the drone is positioned by the positioning and clamping mechanism. Subsequently, the drone descends with the lifting platform to the lower side of the uppermost horizontal plate. In this way, the cleaning mechanisms located around start to work and can effectively clean the drone, with automated operation and improved work efficiency, providing a solution for automatically cleaning drones.

[0013] As a further improvement of the above solution, the lifting mechanism includes electric push rods and telescopic rods. There are several electric push rods, all of which are installed on the lowermost horizontal plate. The two ends of the telescopic rod are respectively connected to the lowermost horizontal plate and the lifting platform. The structure is simple and convenient to operate.

[0014] As a further improvement of the above solution, the drone includes a fuselage and a frame. The frame is a rectangular frame and is located on the lifting platform. The frame in the shape of a rectangular frame can enable the drone to stay stably on the lifting platform, facilitating its subsequent fixing and cleaning.

[0015] As a further improvement of the above solution, the positioning and clamping mechanism includes a first clamping unit and a second clamping unit. Both the first clamping unit and the second clamping unit include two pairs of symmetrically arranged linear modules. And between the two pairs of linear modules in the same group, they are connected by a synchronous belt drive. Both the first clamping unit and the second clamping unit contain a power source to drive the two linear modules to work. And both the first clamping unit and the second clamping unit include two symmetrically arranged alignment plates. The bottoms of the two alignment plates are respectively connected to the corresponding linear modules, and the two groups of alignment plates are driven to approach or move away from each other by the power source.

[0016] The positioning and clamping mechanism can automatically and quickly fix the position of the drone through the first clamping unit and the second clamping unit that move synchronously.

[0017] As a further improvement of the above solution, the heights of the two groups of alignment plates in the first clamping unit and the second clamping unit are different to fix the frame of the drone at different positions. The power source includes a power motor, a driving bevel gear, and two driven bevel gears. The two driven bevel gears are respectively installed at the power input ends of the two linear modules on the same side. The power motor is installed on the corresponding horizontal plate. The output end of the power motor is connected to the driving bevel gear, and the driving bevel gear meshes with the two driven bevel gears.

[0018] Just using one power source can make the first clamping unit and the second clamping unit work synchronously, with a more compact and simple structure and lower cost.

[0019] As a further improvement of the above solution, the notch is a circular hole structure, the corresponding lifting platform is a circular plate matching the size of the notch, and a toothed ring coaxial with the notch is fixed under the top cross plate; The circumferential sliding unit includes an arc-shaped hole coaxial with the notch, a guiding module slidably engaged with the arc-shaped hole, a motor base connected to the guiding module, a sliding motor fixed on the motor base, and a spur gear connected to the output end of the sliding motor. The spur gear meshes with the toothed ring, and the brush motor is fixed on the motor base.

[0020] Using the above structure can repeatedly clean the surface of the drone along the circumference on its periphery.

[0021] As a further improvement of the above solution, the brush includes a brush head and a brush rod. One end of the brush rod is connected to the output end of the brush motor, the other end of the brush rod is movably connected to the brush head, and the end of the brush head has bristles. The structure is simple and convenient for installation and use.

[0022] As a further improvement of the above solution, one end of the brush rod is provided with a card slot, one end of the brush head is located in the card slot and rotatably connected to the inner wall of the card slot. The end of the brush head is an arc-shaped curved surface, and an arc-shaped rack is provided on the outer side of the curved surface. The arc-shaped rack is coaxial with the rotation center of the brush head. A micro motor is also installed in the card slot, and the output end of the micro motor is provided with a micro gear. The micro gear meshes with the arc-shaped rack to drive the brush head to make vertical reciprocating swings.

[0023] Through the above structure, the working range of the cleaning mechanism can be improved, and the cleaning effect is better.

[0024] As a further improvement of the above solution, an air duct and a cavity communicated with the air duct are also arranged inside the brush head. A plurality of air blowing holes communicated with the air duct are opened on the surface of the brush head where the bristles are provided. A pin shaft is fixed on the brush head, and a pin hole rotatably matched with the pin shaft is penetrated through the inner wall of the card slot. The end of the pin shaft extends out of the pin hole and is provided with a gas supply mechanism; The gas supply mechanism includes a sleeve movably sleeved outside the pin hole, a piston cylinder detachably connected to the sleeve, a piston plate arranged in the piston cylinder, a connecting cylinder fixed to one side of the piston plate, and a connecting pin coaxially fixed with the pin shaft. A spiral guiding groove is provided on the outer wall of the connecting pin, the connecting cylinder is sleeved outside the connecting pin, and a guiding block slidably matched with the spiral guiding groove is connected to the inner wall of the connecting cylinder; A one-way valve for inhaling air from the outside is also arranged on the shell of the piston cylinder, and the inside of the piston cylinder and the air inlet of the air duct are connected through a trachea.

[0025] With the above structure, when the brush swings, it can also blow air on the surface of the drone, thereby blowing off dust, fallen leaves, branches, etc. attached to its surface, further improving the cleaning effect.

[0026] As a further improvement of the above solution, it further includes a transparent protective cover. The cross-section of the inner cavity of the protective cover corresponds to the shape of the cross plate, and it can accommodate the four cross plates and the drone therein.

[0027] With the above structure, it can remain relatively closed during cleaning, with higher safety, and the transparent protective cover also facilitates real-time observation of the internal working conditions.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Realize unmanned automatic cleaning operation and improve operation efficiency; by setting up a lifting platform, a positioning and clamping mechanism and multiple groups of automatic cleaning mechanisms, the present invention can realize the automatic control of the whole process of the drone from staying, clamping, descending to cleaning, eliminating manual intervention, and effectively improving the cleaning efficiency and consistency.

[0029] 2. Stable clamping and strong adaptability; the positioning and clamping mechanism driven by a double-group linear module in the present invention can realize multi-point positioning and clamping according to the size and structural differences of the drone, not only improving the clamping stability, but also enhancing the adaptability of the device to different types of drones.

[0030] 3. Wide cleaning range and excellent effect; the present invention sets up multiple cleaning units that can slide circumferentially, cooperating with the vertically swingable brush heads, which can cover all parts of the drone surface, avoid cleaning dead corners, and significantly enhance the cleaning effect.

[0031] 4. Integrated air blowing structure to enhance dust removal ability; the present invention has air blowing holes and a gas supply mechanism built into the brush head. By synchronously releasing high-pressure air flow when the brush head swings, foreign matters such as dust, debris, and fallen leaves attached to the surface of the drone can be completely blown off, further optimizing the cleaning quality.

[0032] 5. Compact structure and controllable cost; the present invention adopts a modular design and realizes the linkage operation of multiple execution units through a single power source. It has a compact structure, is easy to assemble, and has low manufacturing and maintenance costs, suitable for batch deployment and use.

[0033] 6. Safe and reliable, with strong applicability; the present invention is equipped with a transparent protective cover on the outside, which can not only effectively isolate the splashes generated during the cleaning process, but also facilitate real-time observation of the internal operation conditions, improving the use safety and operation convenience, and is applicable to various scenarios such as airports, logistics hubs, and inspection centers. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is the front view of the drone automatic cleaning device proposed by the present invention; Figure 2 Stereogram of the UAV automatic cleaning device proposed by the present invention; Figure 3 Stereogram of the lifting mechanism and lifting platform of the UAV automatic cleaning device proposed by the present invention; Figure 4 Stereogram of the positioning and clamping mechanism of the UAV automatic cleaning device proposed by the present invention and two middle cross plates; Figure 5 Stereogram of the cleaning mechanism and the top cross plate of the present invention; Figure 6 For the present invention Figure 4 Top view of the structure in; Figure 7 Partial structure sectional view of the brush in the cleaning mechanism proposed in Embodiment 2 of the present invention; Figure 8 For the present invention Figure 7 Enlarged view of part A.

[0035] Main symbol description: 1, cross plate; 101, notch; 2, support rod; 3, lifting mechanism; 301, electric push rod; 302, telescopic rod; 4, brush; 5, brush motor; 6, arc hole; 7, sliding seat; 8, drive motor; 9, drive gear; 10, UAV; 11, fuselage; 12, frame; 13, first clamping unit; 14, second clamping unit; 15, linear module; 16, synchronous belt; 17, alignment plate; 18, power motor; 19, driving bevel gear; 20, driven bevel gear; 21, toothed ring; 25, brush head; 26, brush rod; 27, bristles; 28, card slot; 29, micro motor; 30, micro gear; 31, arc rack; 32, air duct; 33, cavity; 34, air blowing hole; 35, pin shaft; 36, pin hole; 37, sleeve; 38, piston cylinder; 39, piston plate; 40, connecting cylinder; 41, connecting pin; 42, spiral guide groove; 43, air pipe; 44, one-way valve; 45, lifting platform. Detailed implementation manners

[0036] Next, in combination with the drawings and specific implementation manners, the present invention will be further described. It should be noted that on the premise of no conflict, any combination can be formed among the following described embodiments or technical features to form a new embodiment. Embodiment

[0037] Referring to Figures 1-6 , the UAV automatic cleaning device proposed in this solution includes four mutually parallel cross plates 1, a lifting platform 45 for the UAV 10 to stay, a lifting mechanism 3 for driving the lifting platform 45, a positioning and clamping mechanism for fixing the UAV 10, and a cleaning mechanism.

[0038] Between adjacent crossbars 1, they are fixed by a number of support rods 2 (the two ends of the support rod 2 and the crossbar 1 are detachably connected, specifically, threaded connection or screw fixation can be adopted). Notches 101 are provided in the middle of the three upper crossbars 1. During specific operation, the sizes of the crossbar 1 and the notch 101 can be determined according to the size of the drone 10 to be cleaned.

[0039] The lifting mechanism 3 is installed on the lowermost crossbar 1, and the output end of the lifting mechanism 3 is connected to the lifting platform 45 after passing through each notch 101.

[0040] The positioning and clamping mechanism is installed on the two middle crossbars 1.

[0041] In this embodiment, there are three groups of cleaning mechanisms circumferentially provided with the center line of the crossbar 1 as the axis (four groups or five groups can also be set, specifically determined according to the structural characteristics of the drone 10. For drones 10 with more complex structures, more cleaning mechanisms can be selected). The cleaning mechanism includes a circumferential sliding unit and a cleaning unit. The circumferential sliding unit is used to drive the cleaning unit to perform reciprocating circumferential motion along the center line of the crossbar 1.

[0042] The cleaning unit includes a horizontally movably arranged brush 4 and a brush motor 5 for driving the brush 4 to rotate.

[0043] The present invention stops the drone 10 to be cleaned through the lifting platform 45, and then positions the drone 10 through the positioning and clamping mechanism. Subsequently, the drone 10 descends with the lifting platform 45 to the lower part of the uppermost crossbar 1. In this way, the cleaning mechanisms around can start working to effectively clean the drone 10, with automated operation and improved work efficiency, and a solution for automatically cleaning the drone 10 is proposed.

[0044] Referring to FIG. 3, the lifting mechanism 3 includes an electric push rod 301 and a telescopic rod 302. There are several electric push rods 301 and they are all installed on the lowermost crossbar 1. The two ends of the telescopic rod 302 are respectively connected to the lowermost crossbar 1 and the lifting platform 45. The structure is simple and convenient to operate. The electric push rod 301 can be used with an external power supply.

[0045] It should be noted that, referring to FIG. 1, the drone 10 includes a fuselage 11 and a frame 12. The frame 12 is a rectangular frame, and the frame 12 is located on the lifting platform 45. The rectangular frame-shaped frame 12 can enable the drone 10 to stay stably on the lifting platform 45, facilitating its subsequent fixation and cleaning.

[0046] As an optional embodiment of the present invention, the positioning and clamping mechanism includes a first clamping unit 13 and a second clamping unit 14, and the first clamping unit 13 and the second clamping unit 14 each include two pairs of symmetrically arranged linear modules 15 (the linear modules 15 can adopt existing mature products on the market, and the specific specifications and sizes are selected according to actual needs, and the power source is motor-driven), and the two pairs of linear modules 15 in the same group are connected by a synchronous belt 16. The first clamping unit 13 and the second clamping unit 14 both contain a power source to drive the two linear modules 15 to work, and the first clamping unit 13 and the second clamping unit 14 each include two symmetrically arranged alignment plates 17, the bottoms of the two alignment plates 17 are respectively connected to the corresponding linear modules 15, and the two groups of alignment plates 17 are driven to move closer or farther away by the power source.

[0047] It is worth mentioning that a guide hole is provided on the second horizontal plate 1 at the top (refer to FIG. 4 , not marked), and the guide hole can allow one set of symmetrically arranged alignment plates 17 to pass through it, so that the two sets of symmetrically arranged alignment plates 17 can clamp and fix the drone 10 in the XY direction at different heights, and the movement will not cause interference.

[0048] The positioning clamping mechanism can automatically and quickly fix the position of the drone 10 through the first clamping unit 13 and the second clamping unit 14 that move synchronously.

[0049] In this solution, the heights of the two sets of alignment plates 17 in the first clamping unit 13 and the second clamping unit 14 are different, so as to fix the frame 12 of the drone 10 at different positions. The power source includes a power motor 18, a driving bevel gear 19 and two driven bevel gears 20. The two driven bevel gears 20 are respectively installed at the power input ends of the two linear modules 15 on the same side. The power motor 18 is installed on the corresponding horizontal plate 1. The output end of the power motor 18 is connected to the driving bevel gear 19, and the driving bevel gear 19 is meshed with the two driven bevel gears 20. The power motor 18 adopts a servo motor, and its external power supply is used.

[0050] Through the above design, this solution can make the first clamping unit 13 and the second clamping unit 14 work synchronously by using only one power source, and the structure is more compact and simple, and the cost is also lower.

[0051] In this embodiment, the notch 101 is a circular hole structure, and the corresponding lifting platform 45 is a circular plate with a size matching the notch 101. A gear ring 21 coaxially arranged with the notch 101 is fixed below the uppermost horizontal plate 1; The circumferential sliding unit includes an arc-shaped hole 6 coaxially arranged with the notch 101, a guiding module slidably engaged with the arc-shaped hole 6, a motor base connected to the guiding module, a sliding motor fixed on the motor base, and a spur gear connected to the output end of the sliding motor. The spur gear meshes with the toothed ring 21, and the brush motor 5 is fixed on the motor base.

[0052] In this solution, the brush 4 includes a brush head 25 and a brush rod 26. One end of the brush rod 26 is connected to the output end of the brush motor 5, and the other end of the brush rod 26 is movably connected to the brush head 25. The end of the brush head 25 has bristles 27. The structure is simple and convenient for installation and use. With the above structure, the surface of the drone 10 can be repeatedly cleaned along the circumference on the periphery. When the brush 4 moves, the bristles 27 can contact the surface of the drone 10, thereby cleaning it.

[0053] Embodiment 2: This embodiment makes further improvements on the basis of Embodiment 1. Specifically, refer to FIGS. 7 and 8. In this embodiment, a card slot 28 is formed at one end of the brush rod 26. One end of the brush head 25 is located in the card slot 28 and is rotatably connected to the inner wall of the card slot 28. The end of the brush head 25 is an arc-shaped curved surface, and an arc-shaped rack 31 is provided on the outer side of the curved surface. The arc-shaped rack 31 is coaxial with the rotation center of the brush head 25. A micro motor 29 is also installed in the card slot 28. The output end of the micro motor 29 is equipped with a micro gear 30, and the micro gear 30 meshes with the arc-shaped rack 31 to drive the brush head 25 to make vertical reciprocating swings.

[0054] Through the above structure, this embodiment can improve the working range of the cleaning mechanism (the brush head 25 of the brush 4 can swing vertically while moving circumferentially), and the cleaning effect is better.

[0055] As a preferred implementation of the present invention, an air duct 32 and a cavity 33 communicated with the air duct 32 are further arranged inside the brush head 25. A plurality of air blowing holes 34 communicated with the air duct 32 are formed on the surface of the brush head 25 where the bristles 27 are provided. A pin shaft 35 is fixed on the brush head 25. A pin hole 36 rotatably engaged with the pin shaft 35 is formed through the inner wall of the card slot 28. The end of the pin shaft 35 extends out of the pin hole 36 and is equipped with a gas supply mechanism; In order to save energy and reduce costs, the air supply mechanism in this solution includes a sleeve 37 movably sleeved around the periphery of the pin hole 36, a piston cylinder 38 detachably connected to the sleeve 37, a piston plate 39 disposed in the piston cylinder 38, a connecting cylinder 40 fixed to one side of the piston plate 39, and a connecting pin 41 coaxially fixed to the pin shaft 35. A spiral guiding groove 42 is provided on the outer wall of the connecting pin 41. The connecting cylinder 40 is sleeved outside the connecting pin 41, and a guiding block slidably engaged with the spiral guiding groove 42 is connected to the inner wall of the connecting cylinder 40. A one-way valve 44 for sucking air from the outside is further provided on the shell of the piston cylinder 38, and the inside of the piston cylinder 38 and the air inlet of the air passage 32 are connected through a trachea 43.

[0056] Through the above structure, when the brush 4 swings, it can also blow air on the surface of the drone 10, so as to blow up the dust, fallen leaves, branches, etc. attached to its surface, further improving the cleaning effect.

[0057] Furthermore, when the micro motor 29 drives the micro gear 30 to drive the brush head 25 to swing, the pin shaft 35 drives the connecting pin 41 to rotate synchronously. Due to the sliding fit between the spiral guiding groove 42 and the guiding block, the piston plate 39 in the piston cylinder 38 is driven to perform a piston motion, so as to squeeze the gas in the piston cylinder 38 to enter the air passage 32 through the trachea 43 and finally blow out through each air blowing hole 34. In this way, the high-pressure air flow blown out blows towards the drone 10, which can further improve the cleaning effect.

[0058] In this solution, the cleaning device further includes a transparent protective cover. The cross-sectional shape of the inner cavity of the protective cover corresponds to the shape of the cross plate 1, and it can accommodate the four cross plates 1 and the drone 10 therein.

[0059] Through the above structure, this solution can maintain a relatively closed state during cleaning, with higher safety, and the transparent protective cover also facilitates real-time observation of the internal working conditions.

[0060] The above embodiments are only the preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the protection scope required by the present invention.

Claims

1. The automatic cleaning device for drones, characterized in that, It includes four layers of mutually parallel cross plates, a lifting platform for the drone to stay, a lifting mechanism for driving the lifting platform, a positioning and clamping mechanism for fixing the drone, and a cleaning mechanism; Between adjacent cross plates, they are fixed by several support rods, and notches are provided in the middle of the three upper cross plates; The lifting mechanism is installed on the lowermost cross plate, and the output end of the lifting mechanism is connected to the lifting platform after passing through each notch; The positioning and clamping mechanism is installed on the two middle cross plates; At least three groups of cleaning mechanisms are circumferentially arranged with the center line of the cross plate as the axis. The cleaning mechanism includes a circumferential sliding unit and a cleaning unit. The circumferential sliding unit is used to drive the cleaning unit to make reciprocating circumferential movements along the center line of the cross plate; The cleaning unit includes a horizontally movably arranged brush and a brush motor for driving the brush to rotate.

2. The drone automatic cleaning device according to claim 1, characterized in that, The lifting mechanism includes electric push rods and telescopic rods. There are several electric push rods, and they are all installed on the lowermost cross plate. The two ends of the telescopic rod are respectively connected to the lowermost cross plate and the lifting platform.

3. The drone automatic cleaning device according to claim 1, wherein, The drone includes a fuselage and a frame. The frame is a rectangular frame and is located on the lifting platform.

4. The drone automatic cleaning device according to claim 1, characterized in that The positioning and clamping mechanism includes a first clamping unit and a second clamping unit. Both the first clamping unit and the second clamping unit include two pairs of symmetrically arranged linear modules. And between the two pairs of linear modules in the same group, they are connected by a synchronous belt drive. There is a power source in both the first clamping unit and the second clamping unit to drive the two linear modules to work. And both the first clamping unit and the second clamping unit include two symmetrically arranged alignment plates. The bottoms of the two alignment plates are respectively connected to the corresponding linear modules, and the two groups of alignment plates are driven to approach or move away from each other by the power source.

5. The drone automatic cleaning device according to claim 4, characterized in that, The heights of the two groups of alignment plates in the first clamping unit and the second clamping unit are different to fix the frame of the drone at different positions. The power source includes a power motor, a driving bevel gear, and two driven bevel gears. The two driven bevel gears are respectively installed at the power input ends of the two linear modules on the same side. The power motor is installed on the corresponding cross plate. The output end of the power motor is connected to the driving bevel gear, and the driving bevel gear meshes with the two driven bevel gears.

6. The drone automatic cleaning device according to claim 1, characterized in that The notch is a circular hole structure. The corresponding lifting platform is a circular plate matching the size of the notch. A toothed ring coaxial with the notch is fixed under the uppermost cross plate; The circumferential sliding unit includes an arc-shaped hole coaxial with the notch, a guiding module slidably matched with the arc-shaped hole, a motor base connected to the guiding module, a sliding motor fixed on the motor base, and a spur gear connected to the output end of the sliding motor. The spur gear meshes with the toothed ring, and the brush motor is fixed on the motor base.

7. The drone automatic cleaning device according to claim 1, wherein, The brush includes a brush head and a brush rod. One end of the brush rod is connected to the output end of the brush motor, and the other end of the brush rod is movably connected to the brush head. The end of the brush head has bristles.

8. The drone automatic cleaning device according to claim 7, wherein, One end of the brush rod is provided with a clamping groove. One end of the brush head is located in the clamping groove and is rotatably connected to the inner wall of the clamping groove. The end of the brush head is an arc-shaped curved surface, and an arc-shaped rack is arranged on the outer side of the curved surface. The arc-shaped rack is coaxial with the rotation center of the brush head. A micro motor is also installed in the clamping groove. The output end of the micro motor is provided with a micro gear, and the micro gear meshes with the arc-shaped rack to drive the brush head to make vertical reciprocating swings.

9. The drone automatic cleaning device according to claim 8, characterized in that, An air passage and a cavity communicated with the air passage are further arranged inside the brush head. A plurality of air blowing holes communicated with the air passage are formed in one surface of the brush head where bristles are arranged. A pin shaft is fixed on the brush head, and a pin hole rotatably matched with the pin shaft is formed through the inner wall of the clamping groove. The end of the pin shaft extends out of the pin hole and is provided with a gas supply mechanism; The gas supply mechanism includes a sleeve movably sleeved outside the pin hole, a piston cylinder detachably connected to the sleeve, a piston plate arranged in the piston cylinder, a connecting cylinder fixed to one side of the piston plate, and a connecting pin coaxially fixed with the pin shaft. A spiral guide groove is arranged on the outer wall of the connecting pin. The connecting cylinder is sleeved outside the connecting pin, and a guide block slidably matched with the spiral guide groove is connected to the inner wall of the connecting cylinder. A one-way valve for sucking air from the outside is further arranged on the shell of the piston cylinder, and the inside of the piston cylinder and the air inlet of the air passage are connected through a trachea.

10. The drone automatic cleaning device according to any one of claims 1-9, characterized in that, It further includes a transparent protective cover. The cross-section of the inner cavity of the protective cover corresponds to the shape of the cross plate, and it can accommodate the four cross plates and the drone therein.

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