Cleaning unmanned aerial vehicle facing glass outer wall and working method of cleaning unmanned aerial vehicle

Abstract

The invention discloses a cleaning unmanned aerial vehicle for a glass outer wall and a working method of the cleaning unmanned aerial vehicle. The cleaning unmanned aerial vehicle comprises an unmanned aerial vehicle assembly, a cleaning assembly, an adsorption assembly and a collection assembly. The unmanned aerial vehicle assembly is used for driving the whole cleaning unmanned aerial vehicle to take off to the air. The cleaning assembly is used for cleaning the glass outer wall. The adsorption assembly is used for fixing the whole cleaning unmanned aerial vehicle to the glass outer wall. The collecting assembly is used for collecting sewage generated in the cleaning process, and secondary pollution caused by the sewage to the glass outer wall is avoided. And sewage generated in the cleaning process can be recycled through the collecting box attached to the glass outer wall, so that secondary pollution caused by the fact that the sewage flows on the glass outer wall is avoided. And moreover, the adsorption assembly used for adsorbing the wall surface is hinged to the unmanned aerial vehicle assembly, so that the robot can better adapt to the outline of the curved glass outer wall, and the curved outer wall can be better cleaned. The invention relates to the technical field of unmanned aerial vehicle cleaning equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of unmanned aerial vehicle cleaning equipment, in particular to a cleaning unmanned aerial vehicle for glass outer walls and a working method thereof. BACKGROUND

[0002] The glass outer walls of buildings are prone to water stains and dirt after long-term exposure to sunlight and rain. Due to the transparent nature of glass, these water stains and dirt are particularly noticeable, thereby affecting the aesthetics of the building. Therefore, regular cleaning is generally required for these glass outer walls. The traditional way of cleaning glass outer walls is by workers performing high-altitude operations, which is time-consuming and labor-intensive, and workers have a heavy labor burden. On the other hand, high-altitude operations are dangerous, and more protective measures are needed, which increases the cost of cleaning.

[0003] To this end, unmanned aerial vehicles are now used to clean glass outer walls. The unmanned aerial vehicle carries a water gun to the vicinity of the glass outer wall, and the water gun sprays high-pressure water mist onto the glass outer wall for cleaning, which is efficient and easy to clean dead corners. Compared to traditional cleaning, it saves time and labor costs and avoids workers working at high altitudes.

[0004] However, in current unmanned aerial vehicle cleaning solutions, most focus on water spraying cleaning, while ignoring the secondary pollution caused by the flow of sewage on the glass outer wall after cleaning. The sewage is not collected in time, and when the sewage dries on the glass outer wall, it will leave large stains, making the glass outer wall look even dirtier. Even if a sewage collection device is used, it is difficult for the device to adhere to the glass outer wall for sewage collection when cleaning glass outer walls with curved radii such as greenhouses, and the sewage is easily accumulated at the curved part of the glass outer wall, thereby affecting the aesthetics and light transmission of the glass outer wall. SUMMARY

[0005] The present application aims to at least solve one of the above technical problems in the prior art. To this end, the present application proposes a cleaning unmanned aerial vehicle for glass outer walls, which can reduce the secondary pollution of cleaning sewage on the glass outer wall, and can better clean and collect sewage from curved glass outer walls.

[0006] The present application also proposes a working method of the cleaning unmanned aerial vehicle for glass outer walls.

[0007] According to the first aspect of the present application, the cleaning unmanned aerial vehicle for glass outer walls comprises: an unmanned aerial vehicle assembly comprising an unmanned aerial vehicle body and a flight frame connected to each other; a cleaning assembly fixed to the flight frame, the cleaning assembly comprising a sprayer mounted to the unmanned aerial vehicle body and spraying cleaning liquid onto the glass outer wall; The adsorption assembly comprises an adsorption frame and a first connecting member, the first connecting member is hinged to the flight frame, the adsorption frame is slidingly connected to the first connecting member, and a plurality of adsorption suckers capable of adsorbing the glass outer wall are arranged on the adsorption frame. The collecting assembly comprises a collecting box and a second connecting member, the second connecting member is connected to the flight frame, the collecting box is mounted to the second connecting member, one side of the collecting box is capable of abutting to the glass outer wall, a water inlet hole is arranged on the top of the collecting box, and the collecting box is arranged below the sprayer to receive sewage.

[0008] The glass outer wall cleaning unmanned aerial vehicle provided by the embodiments of the present application has at least the following beneficial effects: the sewage generated in the cleaning process can be recycled through the collecting box abutting to the glass outer wall, thereby avoiding the secondary pollution caused by the sewage flowing on the glass outer wall. Moreover, the adsorption assembly for adsorbing the wall surface is hinged between the unmanned aerial vehicle assembly, thereby being more capable of adapting to the profile of the curved glass outer wall and better cleaning the curved outer wall.

[0009] According to some embodiments of the present application, the adsorption frame further comprises a fixing frame, two expansion frames symmetrically arranged at two ends of the fixing frame, and a telescopic drive, the expansion frames are slidingly connected to the fixing frame, the telescopic drive drives the two expansion frames to move close to or away from each other, and the adsorption sucker is arranged on the expansion frame.

[0010] According to some embodiments of the present application, the adsorption assembly further comprises a first sliding mechanism, the adsorption frame slides in a first direction, and the first sliding mechanism drives the adsorption frame to move.

[0011] According to some embodiments of the present application, the first sliding mechanism comprises a first motor, a first gear and a first rack, the first rack is mounted to the adsorption frame, the first motor is mounted to the first connecting member, the first gear is mounted to the rotating shaft of the first motor, and the first gear is engaged with the first rack.

[0012] According to some embodiments of the present application, the collecting assembly further comprises a second sliding mechanism, the second connecting member is slidingly connected to the flight frame, the second connecting member slides in a first direction, and the second sliding mechanism drives the second connecting member to move.

[0013] According to some embodiments of the present application, the second sliding mechanism comprises a second motor, a second gear and a second rack, the second rack is mounted to the second connecting member, the second motor is mounted to the flight frame, the second gear is mounted to the rotating shaft of the second motor, and the second gear is engaged with the second rack.

[0014] According to some embodiments of the present application, the collecting assembly further comprises an elastic member arranged between the collecting box and the second connecting member, and the elastic force of the elastic member acts on the collecting box to tightly fit the collecting box to the glass curtain wall.

[0015] According to some embodiments of the present application, the collecting assembly further comprises a suction accessory mounted to the second connecting member, and an end of the suction accessory is provided with a suction disc to be adsorbed to the glass curtain wall.

[0016] According to some embodiments of the present application, the cleaning assembly further comprises a cleaning wheel and a scraper, the cleaning wheel is rotatably connected to the flight frame, and the cleaning wheel can be in contact with the glass curtain wall to wipe off dirt, the scraper is fixedly connected to the flight frame, and the scraper can be in contact with the glass curtain wall to scrape off dirt.

[0017] The working method of the second aspect embodiment of the present application is based on the above-mentioned cleaning unmanned aerial vehicle facing the glass curtain wall, and comprises the following steps: The unmanned aerial vehicle body is started and flown in the air, and approaches the glass curtain wall to be cleaned; The suction frame is in contact with the glass curtain wall and is adsorbed on the glass curtain wall through the suction disc; The unmanned aerial vehicle body gradually reduces the rotating speed, and the flight frame rotates around the fixed suction assembly until the collecting box is in contact with the glass curtain wall; The ejector is started, the ejector sprays cleaning liquid to the glass curtain wall, and the sewage on the glass curtain wall flows into the collecting box; The first connecting member slides relative to the suction frame, thereby driving the cleaning assembly and the collecting assembly to move integrally, and then the glass curtain wall is cleaned in a larger range; After cleaning, the ejector is turned off, the unmanned aerial vehicle body is started, the flight frame rotates around the fixed suction assembly, and the collecting box is away from the glass curtain wall; The suction disc releases the adsorption to the glass curtain wall, the unmanned aerial vehicle body flies to other places of the glass curtain wall to be cleaned, and the above steps are repeated.

[0018] According to the working method of the embodiment of the application, the following beneficial effects are achieved: the unmanned aerial vehicle body flies to the glass outer wall in the air, thereby avoiding the labor burden caused by manual cleaning by workers, and reducing the danger in the cleaning process. After the adsorption frame is adsorbed to the glass outer wall, the unmanned aerial vehicle body is reduced in speed so that the collection box is attached to the glass outer wall, thereby reducing the power consumption of the unmanned aerial vehicle body in the cleaning process, and the collection box can collect sewage generated in the cleaning process to avoid secondary pollution. Due to the hinged relationship between the adsorption assembly and the unmanned aerial vehicle assembly, the collection assembly connected to the unmanned aerial vehicle assembly can change the overturning angle more freely, thereby being more adaptable to the curved glass outer wall and being more flexible.

[0019] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the technical solutions of the application, and constitute a part of the specification, and are used together with the embodiments disclosed in the application to explain the technical solutions of the application, and do not constitute a limitation on the technical solutions of the application.

[0021] Figure 1 FIG. 1 is a top view of a cleaning unmanned aerial vehicle facing a glass outer wall according to the first embodiment of the application; Figure 2 FIG. 2 is a three-dimensional view of a cleaning assembly in the cleaning unmanned aerial vehicle facing the glass outer wall according to the first embodiment of the application; Figure 3 FIG. 3 is a three-dimensional view of the cleaning unmanned aerial vehicle facing the glass outer wall according to the first embodiment of the application; Figure 4 FIG. 4 is a three-dimensional view of an adsorption assembly in the cleaning unmanned aerial vehicle facing the glass outer wall according to the first embodiment of the application; Figure 5 FIG. 5 is a three-dimensional view of an unmanned aerial vehicle assembly in the cleaning unmanned aerial vehicle facing the glass outer wall according to the first embodiment of the application.

[0022] FIG. 1 is a top view of a cleaning unmanned aerial vehicle facing a glass outer wall according to the first embodiment of the application; DETAILED DESCRIPTION

[0023] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below by reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation on the present application.

[0024] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0026] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0027] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0028] The glass outer wall of a building is prone to leave water stains and dirt after long-term sun exposure and rain, and due to the transparent nature of the glass, these water stains and dirt are particularly noticeable, thereby affecting the aesthetics of the building. Therefore, for these glass outer walls, regular cleaning is generally required. The traditional glass outer wall cleaning method is to clean by workers performing high-altitude operations, but on the one hand, such a cleaning method is time-consuming and labor-intensive, and workers have a large labor burden; on the other hand, high-altitude operations have certain risks, and therefore more protective measures are required, thereby increasing the cleaning cost.

[0029] In response, drones are now being used for cleaning glass facades. The drones, equipped with water guns, fly to the vicinity of the glass facade and spray high-pressure water mist to clean it. This method is highly efficient and effectively cleans hard-to-reach areas. Compared to traditional cleaning methods, it saves labor and time costs while avoiding the need for cleaning workers to operate at heights.

[0030] However, most current drone cleaning solutions focus only on water spraying, neglecting the secondary pollution caused by wastewater flowing onto glass facades. Wastewater not collected promptly dries on the glass, creating large stains and making the glass appear even dirtier. Even with wastewater collection devices, it's difficult to keep the device close enough to collect wastewater when cleaning curved glass facades like those in greenhouses. Wastewater easily accumulates at the bends, affecting the aesthetics and light transmission of the glass.

[0031] In response, this application proposes a cleaning drone for glass exterior walls. Through a collection box attached to the glass exterior wall, it can collect wastewater generated during the cleaning process, thereby preventing wastewater from flowing onto the glass exterior wall and causing secondary pollution. Furthermore, the adsorption component for adsorbing the wall surface is hinged to the drone component, thus better adapting to the curved contours of the glass exterior wall and more effectively cleaning curved surfaces.

[0032] Furthermore, this application proposes a working method for a cleaning drone targeting glass facades. The drone flies towards the glass facade at a high altitude, avoiding the labor burden of manual cleaning by workers and reducing the dangers of the cleaning process. After the suction cup adheres to the glass facade, the drone reduces its rotation speed to allow the collection box to stick to the glass facade, reducing the drone's power consumption during cleaning. The collection box also collects wastewater generated during cleaning to prevent secondary pollution. Due to the hinged connection between the suction component and the drone component, the collection component connected to the drone component can more freely change its rotation angle, thus better adapting to curved glass facades and offering greater flexibility.

[0033] Reference Figure 1 The cleaning drone for glass exterior walls according to the first aspect of this application includes a drone component 100, a cleaning component 200, an adsorption component 300, and a collection component 400. The drone component 100 is used to take off and approach the glass exterior wall to be cleaned. The cleaning component 200 is used to clean the glass exterior wall. The adsorption component 300 is used to fix the entire cleaning drone to the glass exterior wall, reducing the power consumption of the drone component 100 during the cleaning process and facilitating the cleaning work of the cleaning component 200. The collection component 400 is used to collect wastewater generated during the cleaning process, preventing secondary pollution of the glass exterior wall.

[0034] Specifically, the unmanned aerial vehicle assembly 100 comprises an unmanned aerial vehicle body 110 and a flight frame 120 connected with each other. The unmanned aerial vehicle body 110 is a multi-rotor unmanned aerial vehicle, which mainly undertakes the work of carrying the flight load. The flight frame 120 serves as a connecting piece, connecting the adsorption assembly 300 and the collection assembly 400 to the unmanned aerial vehicle body 110, so that the unmanned aerial vehicle body 110 can drive the entire cleaning unmanned aerial vehicle to ascend.

[0035] With reference to Figure 2 , the cleaning assembly 200 is fixed to the flight frame 120, and the cleaning assembly 200 comprises a sprayer 210 installed to the unmanned aerial vehicle body 110 and spraying cleaning liquid to the glass outer wall. In some embodiments, the sprayer 210 is connected with a spraying pipe, the spraying pipe extends to the ground and is connected with a cleaning liquid storage tank, and the cleaning liquid can be continuously transported from the cleaning liquid storage tank on the ground to the cleaning unmanned aerial vehicle and sprayed out from the sprayer 210, so that the cleaning unmanned aerial vehicle can not be forced to return due to the shortage of cleaning liquid. In other embodiments, a cleaning liquid storage box is also installed in the flight frame 120, and the cleaning liquid is stored in the cleaning liquid storage box and ascends with the flight frame 120, so that the cleaning unmanned aerial vehicle can be free from the restriction of the spraying pipe and can fly to a higher altitude.

[0036] With reference to Figure 3 and Figure 4 , the adsorption assembly 300 comprises an adsorption frame 310 and a first connecting piece 320, and the first connecting piece 320 is hinged to the flight frame 120, so that the first connecting piece 320 can be flipped relative to the flight frame 120 about the hinge axis, so as to be more suitable for curved glass outer walls. The adsorption frame 310 is provided with a plurality of suction cups 311 capable of adsorbing the glass outer wall, and each suction cup 311 is controlled by a vacuum pump. The adsorption frame 310 is slidingly connected to the first connecting piece 320, so that after the adsorption frame 310 is adsorbed and fixed to the glass outer wall, the first connecting piece 320 and the unmanned aerial vehicle assembly 100 and the cleaning assembly 200 connected thereto can be moved, and then attached to the surface of the glass wall to clean a larger range.

[0037] The collection assembly 400 comprises a collection box 410 and a second connecting piece 420, and the second connecting piece 420 is connected to the flight frame 120, and the collection box 410 is installed to the second connecting piece 420. It is worth noting that one side of the collection box 410 can abut against the glass outer wall, the top of the collection box 410 is provided with a water inlet hole 411, and the collection box 410 is arranged below the sprayer 210. After the sprayer 210 sprays cleaning liquid to the glass outer wall, the cleaning liquid can carry dirt along the surface of the glass outer wall to the collection box 410 below, and the collection box 410 thereby receives the sewage, and the sewage enters the collection box 410 through the water inlet hole 411 of the collection box 410 to be stored.

[0038] The working principle of this glass exterior wall cleaning drone is as follows: After the drone body 110 starts, it lifts the entire cleaning drone into the air and approaches the glass exterior wall to be cleaned. In the adsorption assembly 300, the suction cups 311 on the adsorption frame 310 first contact the glass exterior wall and adhere to it. Then, the drone body 110 closes, and the flight frame 120, cleaning assembly 200, and collection assembly 400 hang down naturally and adhere to the surface of the glass exterior wall. The sprayer 210 sprays cleaning fluid onto the glass exterior wall, while the collection box 410 collects the wastewater left on the glass exterior wall to avoid secondary pollution. The first connector 320 continuously slides, allowing the cleaning assembly 200 and collection assembly 400 to move along the glass exterior wall as a whole, cleaning while moving. After cleaning the glass exterior wall in this area is completed, the drone body 110 restarts, the suction cups on the adsorption frame 310 release their adhesion to the glass exterior wall, and the entire cleaning drone takes off again to clean other areas of the glass exterior wall or returns to the ground.

[0039] Optionally, the adsorption frame 310 further includes a fixed frame 312, an expansion frame 313, and a telescopic actuator 314. Two expansion frames 313 are symmetrically arranged at both ends of the fixed frame 312, and are slidably connected to the fixed frame 312. The telescopic actuator 314 drives the two expansion frames 313 to move closer or further apart, and the suction cup 311 is mounted on the expansion frame 313. Thus, when improved adsorption stability is required, the telescopic actuator 314 drives the two expansion frames 313 further apart, increasing the lever arm distance between them; when other structures on the glass exterior wall restrict the adsorption area, the telescopic actuator 314 drives the two expansion frames 313 closer together, preventing interference between the expansion frames 313 and other structures on the glass exterior wall.

[0040] Furthermore, the adsorption assembly 300 also includes a first sliding mechanism, wherein the adsorption frame 310 is along a first direction (refer to...). Figure 3 The first sliding mechanism drives the adsorption frame 310 to move by sliding in the x-direction. The main force-applying mechanism of the first sliding mechanism can be a linear drive mechanism such as an electric telescopic rod, pneumatic telescopic rod, hydraulic telescopic rod, or screw mechanism. In this embodiment, the first sliding mechanism includes a first motor 330, a first gear 340, and a first rack 350. The first rack 350 is mounted to the adsorption frame 310, the first motor 330 is mounted to the first connecting member 320, and the first gear 340 is mounted to the rotating shaft of the first motor 330, meshing with the first rack 350. When the first motor 330 starts and drives the first gear 340 to rotate, the force is transmitted to the adsorption frame 310 due to the meshing of the first gear 340 and the first rack 350, thereby causing relative sliding between the first connecting member 320 and the adsorption frame 310.

[0041] Further, the collecting assembly 400 further comprises a second sliding mechanism, the second connecting member 420 is slidingly connected with the flight frame 120, the second connecting member 420 slides along a first direction, and the moving direction of the second connecting member 420 is parallel to the moving direction of the first connecting member 320. The second sliding mechanism drives the second connecting member 420 to move, and the collecting box 410 on the second connecting member 420 can be adjusted to better receive the sewage left on the surface of the glass curtain wall.

[0042] For the main force applying mechanism of the second sliding mechanism, a linear driving mechanism such as an electric telescopic rod, a pneumatic telescopic rod, a hydraulic telescopic rod or a screw rod mechanism can be used. In the embodiment, the second sliding mechanism comprises a second motor, a second gear 440 and a second rack. The second rack is installed to the second connecting member 420, the second motor is installed to the flight frame 120, the second gear 440 is installed to the rotating shaft of the second motor, and the second gear 440 is engaged with the second rack. When the second motor is started and drives the second gear 440 to rotate, the force is transmitted to the second connecting member due to the engagement between the second gear 440 and the second rack, so that the relative sliding between the second connecting member and the flight frame 120 is driven. Figure 5

[0043] Further, the collecting assembly 400 further comprises an elastic member 460, the elastic member 460 is arranged between the collecting box 410 and the second connecting member 420, and the elastic force of the elastic member 460 acts on the collecting box 410 to make the collecting box 410 closely adhere to the glass curtain wall, so that the collecting box 410 can better receive the sewage left on the surface of the glass curtain wall.

[0044] Optionally, the side of the collecting box 410 abutting against the glass curtain wall is further provided with a baffle 412 abutting against the glass curtain wall, and the sewage flowing to the baffle 412 can be guided to the top of the collecting box 410 by the baffle 412. The top of the collecting box 410 is concave, and the water inlet hole 411 is arranged at the deepest part of the concave part, so that the sewage at the top of the collecting box 410 is guided to flow into the water inlet hole 411.

[0045] Further, the collecting box 410 is further provided with a water level sensor for detecting the amount of sewage collected in the collecting box 410, so as to determine whether it is necessary to return for cleaning.

[0046] Further, the collecting assembly 400 further comprises a suction accessory 470, the suction accessory 470 is installed to the second connecting member 420, and the end of the suction accessory 470 is provided with a suction disc to be adsorbed to the glass curtain wall, so that the collecting assembly 400 can also be closely adsorbed to the glass curtain wall.

[0047] ​Further, the cleaning assembly 200 further comprises a cleaning wheel 220 and a scraper 230. The cleaning wheel 220 is rotatably connected with the flight frame 120, and the outer side of the cleaning wheel 220 is provided with bristles. After rotation, the cleaning wheel 220 can contact the glass outer wall to wipe off dirt. The scraper 230 is fixedly connected with the flight frame 120, and the scraper 230 can contact the glass outer wall to scrape off dirt. During the movement of the cleaning assembly 200 along the glass outer wall, the cleaning wheel 220 actively rotates to wipe the glass outer wall, and the scraper closely contacts the glass outer wall to scrape off dirt.

[0048] Further, for the specific structure of the cleaning wheel 220, the embodiment adopts a Mecanum wheel, adopts a complex contact mode with the glass outer wall, and improves the cleanliness of the cleaning wheel 220 on the glass outer wall. Moreover, for the dome-shaped structure of the greenhouse glass outer wall, when cleaning the top of the structure, the Mecanum wheel can also be used to drive displacement, and the travel direction can be more freely changed.

[0049] The working method in the second aspect embodiment of the present application is based on the above-mentioned cleaning unmanned aerial vehicle for the glass outer wall, and comprises the following steps: S100. The unmanned aerial vehicle body 110 is started and flies into the air, and approaches the glass outer wall to be cleaned; S200. The suction frame 310 contacts the glass outer wall and is adsorbed on the glass outer wall by the suction cup 311; S300. The unmanned aerial vehicle body 110 gradually reduces the rotation speed, the flight frame 120 rotates around the fixed adsorption assembly 300, and the collecting box 410 contacts the glass outer wall; S400. The ejector 210 is started, the ejector 210 sprays cleaning liquid to the glass outer wall, and the sewage on the glass outer wall flows into the collecting box 410; S500. The first connecting piece 320 slides relative to the suction frame 310, so as to drive the cleaning assembly 200 and the collecting assembly 400 to move integrally, and then the glass outer wall is cleaned in a larger range; S600. After cleaning, the ejector 210 is turned off, the unmanned aerial vehicle body 110 is started, the flight frame 120 rotates around the fixed adsorption assembly 300, and the collecting box 410 moves away from the glass outer wall; S700. The suction cup 311 releases the adsorption on the glass outer wall, the unmanned aerial vehicle body 110 flies to other places of the glass outer wall to be cleaned, and the above steps are repeated.

[0050] For the embodiment in which the second connecting piece 420 is slidably connected with the flight frame 120, under the driving of the second sliding mechanism, the second connecting piece 420 can move in the first direction, so that the position of the collecting box 410 is changed during cleaning to better receive the sewage flowing down from the glass outer wall.

[0051] The embodiments of the present application are described in detail above with reference to the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application. Furthermore, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. A cleaning drone for glass exterior walls, characterized in that, include: Unmanned aerial vehicle (UAV) components, which include interconnected UAV bodies and flight frames; A cleaning assembly, which is fixed to the flight frame, the cleaning assembly includes a sprayer that is mounted to the drone body and sprays cleaning fluid onto the glass exterior wall; An adsorption assembly includes an adsorption frame and a first connector, the first connector being hinged to the flight frame, the adsorption frame being slidably connected to the first connector, and the adsorption frame having multiple suction cups capable of adsorbing glass exterior walls. The collection assembly includes a collection box and a second connector, the second connector being connected to the flight frame, the collection box being installed to the second connector, one side of the collection box being able to abut against the glass exterior wall, the top of the collection box having a water inlet hole, and the collection box being positioned below the jet to collect wastewater.

2. The cleaning drone for glass exterior walls according to claim 1, characterized in that: The suction frame also includes a fixed frame, an expansion frame, and a telescopic actuator. There are two expansion frames, which are symmetrically arranged at both ends of the fixed frame. The expansion frames are slidably connected to the fixed frame. The telescopic actuator drives the two expansion frames to move closer to each other or further away from each other. The suction cup is arranged on the expansion frame.

3. The cleaning drone for glass exterior walls according to claim 1, characterized in that: The adsorption assembly further includes a first sliding mechanism, the adsorption frame slides along a first direction, and the first sliding mechanism drives the adsorption frame to move.

4. The cleaning drone for glass exterior walls according to claim 3, characterized in that: The first sliding mechanism includes a first motor, a first gear, and a first rack. The first rack is mounted to the adsorption frame, the first motor is mounted to the first connector, the first gear is mounted to the rotating shaft of the first motor, and the first gear meshes with the first rack.

5. The cleaning drone for glass exterior walls according to claim 3, characterized in that: The collection assembly further includes a second sliding mechanism, the second connector is slidably connected to the flight frame, the second connector slides along a first direction, and the second sliding mechanism drives the second connector to move.

6. The cleaning drone for glass exterior walls according to claim 5, characterized in that: The second sliding mechanism includes a second motor, a second gear, and a second rack. The second rack is mounted to the second connector, the second motor is mounted to the flight frame, the second gear is mounted to the rotating shaft of the second motor, and the second gear meshes with the second rack.

7. The cleaning drone for glass exterior walls according to claim 1, characterized in that: The collection assembly also includes an elastic element disposed between the collection box and the second connector. The elastic force of the elastic element acts on the collection box to make the collection box fit tightly against the glass exterior wall.

8. The cleaning drone for glass exterior walls according to claim 1, characterized in that: The collection assembly also includes an adsorption element, which is installed to the second connector, and the end of the adsorption element is provided with a suction cup to adsorb onto the glass exterior wall.

9. The cleaning drone for glass exterior walls according to claim 1, characterized in that: The cleaning assembly also includes a cleaning wheel and a scraper. The cleaning wheel is rotatably connected to the flight frame and can contact the glass exterior wall to wipe away dirt. The scraper is fixedly connected to the flight frame and can contact the glass exterior wall to scrape away dirt.

10. A method of operating a cleaning drone for a glass exterior wall as described in any one of claims 1 to 9, characterized in that, include: The main body of the drone is activated and flies into the air, approaching the glass exterior wall that needs to be cleaned; The suction cup contacts the glass exterior wall and adheres to it. The main body of the drone gradually reduces its rotation speed, and the flight frame rotates around the fixed adsorption component until the collection box contacts the glass outer wall; The sprayer is activated, and the sprayer sprays cleaning fluid onto the glass exterior wall, while the wastewater on the glass exterior wall flows into the collection box; The first connector slides relative to the adsorption rack, thereby driving the cleaning component and the collection component to move as a whole, thus cleaning a larger area of ​​the glass exterior wall; After cleaning is complete, the jet is turned off, the main body of the drone is started, the flight frame rotates around the fixed adsorption assembly, and the collection box is moved away from the glass exterior wall; The suction cup releases its grip on the glass exterior wall, and the drone body flies to other areas of the glass exterior wall that need cleaning, repeating the above steps.

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