Cleaning mechanism of glass curtain wall cleaning unmanned aerial vehicle

By designing a cleaning mechanism for glass curtain wall cleaning drones, and utilizing the reciprocating motion of scrapers and brushes along with spraying cleaning fluid, the problem of poor cleaning effect on stubborn dirt in existing technologies has been solved, achieving efficient and safe glass curtain wall cleaning.

CN223987834UActive Publication Date: 2026-03-13NANJING INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing glass curtain wall cleaning drones are ineffective at cleaning stubborn dirt, while traditional cleaning methods are inefficient and pose safety hazards.

Method used

Design a cleaning mechanism for a glass curtain wall cleaning drone, including a supply box, metal pipe, extension frame, cleaning unit, scraper, brush rod and drive unit. Through the reciprocating motion of the scraper and brush rod and the spraying of cleaning liquid, the glass curtain wall can be cleaned multiple times and sprayed precisely, improving the cleaning effect of stubborn dirt.

Benefits of technology

Without compromising cleaning efficiency, it significantly improves the cleaning effect on stubborn dirt, increases cleaning efficiency, and reduces the labor intensity and safety risks for workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of glass curtain wall cleaning, in particular to a cleaning mechanism of a glass curtain wall cleaning unmanned aerial vehicle, which comprises a supply box arranged at the bottom of the unmanned aerial vehicle and used for supplying cleaning liquid, the cleaning mechanism of the glass curtain wall cleaning unmanned aerial vehicle further comprises an extending frame fixedly arranged between the two metal pipes and a cleaning part arranged on the extending frame, the metal pipes are used for supplying cleaning liquid to the cleaning part, and the cleaning part is used for cleaning dirt on the surface of a glass curtain wall. According to the glass curtain wall cleaning device, the driving part synchronously drives the scraping strip to reciprocate to scrape dirt on a glass curtain wall, the brush roller rotates forwards and backwards in a reciprocating mode to brush the dirt on the glass curtain wall, the dirt at the same position can be cleaned twice, cleaning liquid can be synchronously sprayed in the cleaning process, and the cleaning efficiency can be greatly improved on the premise that the cleaning efficiency is not affected. The cleaning effect on stubborn dirt is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of glass curtain wall cleaning technology, and in particular to a cleaning mechanism for a glass curtain wall cleaning drone. Background Technology

[0002] For high-risk jobs like cleaning glass curtain walls of high-rise buildings, the traditional cleaning method involves using cable cars to gradually lower them from the rooftop. Workers stand inside the cable cars to manually clean the surface of the glass curtain wall. In this process, the personal safety of the cleaning personnel is relatively low, the cleaning efficiency is low, and the psychological pressure and labor intensity of the workers are relatively high.

[0003] With the development and advancement of drone technology, medium and large-sized cleaning drones can be used to replace manual cleaning of glass curtain walls. Existing patent application number 201821595557.4 discloses a high-altitude glass curtain wall cleaning drone. In this device, a servo motor drives the cleaning robotic arm to rotate, which in turn rotates the cleaning brush head, enabling it to clean stubborn dirt on the glass curtain wall. Even when the servo motor is stationary, the drone can still move the cleaning brush head up and down or left and right synchronously to clean the glass curtain wall. The two cleaning methods are designed with great flexibility. In the aforementioned prior art, this device only cleans the glass curtain wall by scraping with the cleaning brush head, and its cleaning effect on stubborn dirt is relatively poor. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a cleaning mechanism for a glass curtain wall cleaning drone, so as to solve the problem that cleaning glass curtain walls by simply scraping with a cleaning brush head is relatively ineffective for cleaning stubborn dirt.

[0005] To achieve the above objectives, this utility model provides a cleaning mechanism for a glass curtain wall cleaning drone, including a supply tank located at the bottom of the drone for supplying cleaning fluid, with two metal pipes arranged opposite each other on the supply tank. The cleaning mechanism for the glass curtain wall cleaning drone also includes:

[0006] An extension frame is fixed between the two metal tubes.

[0007] A cleaning section is provided on the extension frame, and the metal tube is used to supply cleaning fluid to the cleaning section, which is used to clean dirt on the surface of the glass curtain wall.

[0008] The central support and two side supports are hinged side-by-side and alternately to the extension frame.

[0009] The two connecting rods are hinged to each other between the two side support rods, and the two ends of the middle support rod are respectively hinged to the two connecting rods.

[0010] A scraper fixedly mounted on the connecting rod.

[0011] A drive component for driving the reciprocating deflection of the central support rod.

[0012] Two brush rollers mounted on the extension frame rotate relative to each other.

[0013] A linkage component used to indirectly drive the rotation of the two brush rollers in conjunction with the drive component.

[0014] Preferably, the two side support rods and the two connecting rods together form a parallelogram cleaning scraper frame that can reciprocate, and the connecting rods and the scraper are coplanar and parallel.

[0015] Preferably, the two brush rollers are arranged side by side between the two connecting rods, and the brush rollers and the scraper are coplanar and parallel.

[0016] Preferably, the cleaning unit further includes a plurality of spray holes provided on the scraper and spray nozzles provided opposite to the extension frame, and the metal pipe is used to deliver cleaning liquid to the spray holes and spray nozzles and spray it onto the glass curtain wall.

[0017] Preferably, the spray nozzle is located between the two brush rods, and the spray nozzle, brush rods, and scraper are all located on the same side of the extension frame.

[0018] Preferably, the driving component includes a drive motor fixedly mounted on the extension frame, and an L-shaped support arm is fixedly mounted on one of the connecting rods. One end of the L-shaped support arm is hinged to a connecting arm, and one end of the connecting arm is fixedly mounted on the output end of the motor.

[0019] Preferably, the linkage includes two guide grooves disposed opposite to each other on the central support rod, a slider is slidably sleeved in the guide groove, and a sliding column is fixedly disposed on the slider.

[0020] Two transmission rods are rotatably mounted on the extension frame. The outer side of the transmission rods is provided with a spiral groove. One end of the sliding column is slidably sleeved in the spiral groove. The middle support rod reciprocates under the indirect drive of the drive motor, so that the sliding column slides relative to each other in the spiral groove, while the drive transmission rod reciprocates in both directions.

[0021] Preferably, the linkage further includes a drive wheel fixedly mounted on the transmission rod, a driven wheel fixedly mounted on the brush roller, and a belt sleeved between the drive wheel and the driven wheel.

[0022] The beneficial effects of this utility model are:

[0023] This invention uses a drive unit to synchronously drive the scraper to reciprocate and remove dirt from glass curtain walls, and also causes the brush roller to rotate and sweep the dirt from the glass curtain wall. It can clean the dirt in the same area twice while the drone moves up and down or left and right. During the cleaning process, cleaning fluid is sprayed simultaneously, which greatly improves the cleaning effect on stubborn dirt without affecting the cleaning efficiency. The spray nozzle can spray the cleaning fluid widely and efficiently on the glass curtain wall to soften the dirt in advance, and then spray the cleaning fluid point-to-point precisely during scraping to deeply soften the stubborn dirt, further improving the cleaning effect on stubborn dirt. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0026] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0027] Figure 3 This is a three-dimensional illustration of the present invention. Figure 3 ;

[0028] Figure 4 This is a three-dimensional illustration of the present invention. Figure 4 .

[0029] The diagram is marked as follows:

[0030] 1. Supply box; 2. Metal pipe; 3. Extension frame; 4. Cleaning section; 41. Central support rod; 42. Side support rod; 43. Connecting rod; 44. Driving component; 45. Linkage component; 451. Guide groove; 452. Slider; 453. Sliding column; 454. Transmission rod; 455. Spiral groove; 456. Driving wheel; 457. Driven wheel; 458. Belt; 46. Brush roller; 47. Scraper; 48. Spray hole; 49. Spray nozzle. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0032] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] like Figures 1 to 4 As shown, a cleaning mechanism for a glass curtain wall cleaning drone includes a supply tank 1 located at the bottom of the drone for supplying cleaning fluid. The supply tank 1 includes a storage tank fixedly located at the bottom of the drone and a supply pump located inside the storage tank. The storage tank is used to hold the cleaning fluid. Two metal pipes 2 are arranged opposite each other on the supply tank 1, and one end of each metal pipe 2 is connected to the output end of the supply pump. The cleaning mechanism for the glass curtain wall cleaning drone also includes:

[0034] An extension frame 3 is fixedly installed between two metal tubes 2.

[0035] The cleaning section 4 is located on the extension frame 3. The metal pipe 2 is used to supply cleaning fluid to the cleaning section 4, which is used to clean the dirt on the surface of the glass curtain wall.

[0036] The central support rod 41 and two side support rods 42 are hinged side by side and alternately to the extension frame 3.

[0037] The two connecting rods 43 are hinged to each other between the two side support rods 42. The two ends of the middle support rod 41 are respectively hinged to the two connecting rods 43. The middle support rod 41 is hinged to the extension frame 3 at its midpoint. The two ends of the middle support rod 41 are respectively hinged to the midpoint of the two connecting rods 43.

[0038] Scraper 47 is fixedly mounted on connecting rod 43.

[0039] The driving component 44 is used to drive the central support rod 41 to reciprocate. The central support rod 41 reciprocates under the drive of the driving component 44. Through the linkage of the connecting rod 43, the two side support rods 42 can be deflected synchronously. The two connecting rods 43 will also reciprocate in the longitudinal and transverse directions in the same plane, moving closer or further away from each other. In this way, the scraper 47 can reciprocate to clean the surface of the glass curtain wall to remove dirt.

[0040] Two brush rollers 46 are mounted on the extension frame 3 and rotate relative to each other.

[0041] The linkage component 45 is used to indirectly drive the two brush rollers 46 to rotate. Under the linkage of the linkage component 45, when the scraper 47 is scraping the glass curtain wall, the brush rollers 46 can simultaneously rotate back and forth to clean the surface of the glass curtain wall. This allows for double cleaning of dirt at the same point, improving the cleaning effect on stubborn dirt. In conjunction with the up-down or horizontal linear movement of the drone, it can efficiently clean the glass curtain wall from point to line, and then from line to surface, improving cleaning efficiency.

[0042] like Figure 2 and Figure 4 As shown, the two side support rods 42 and the two connecting rods 43 together form a parallelogram cleaning scraper frame that can reciprocate. The connecting rods 43 and the scraper 47 are coplanar and parallel.

[0043] Two brush rollers 46 are positioned side by side between two connecting rods 43, and the brush rollers 46 and the scraper 47 are coplanar and parallel. The brush rollers 46 and the connecting rods 43 always maintain a parallel relationship with each other. In this way, the scraper 47 and the brush rollers 46 can clean the glass curtain wall simultaneously without interfering with each other. Combined with the movement of the drone, the same point can be cleaned twice efficiently, improving the cleaning effect.

[0044] like Figure 2 and Figure 4 As shown, the cleaning unit 4 also includes a plurality of spray holes 48 provided on the scraper 47 and spray nozzles 49 provided on the extension frame 3. The metal pipe 2 is used to deliver the cleaning liquid to the spray holes 48 and spray nozzles 49 and spray it onto the glass curtain wall.

[0045] The spray nozzle 49 is located between the two brush rollers 46, and the spray nozzle 49, brush rollers 46, and scraper 47 are all on the same side of the extension frame 3. The spray nozzle 49 can spray cleaning liquid widely, so that the brush rollers 46 can brush the glass curtain wall more extensively. The spray hole 48 can spray cleaning liquid more precisely on the path of the scraper 47 when the scraper 47 is scraping, so as to achieve precise spraying of dirt, improve the wetting and softening effect of the cleaning liquid on stubborn dirt, and thus further improve the cleaning effect of stubborn dirt.

[0046] like Figure 2As shown, the drive unit 44 includes a drive motor fixedly mounted on the extension frame 3. An L-shaped support arm is fixedly mounted on one of the connecting rods 43. One end of the L-shaped support arm is hinged to a connecting arm, and one end of the connecting arm is fixedly mounted on the output end of the motor. When the output end of the drive motor rotates continuously in one direction, it can drive the middle support rod 41 to reciprocate. Under the linkage of the connecting rod 43, it can drive the two side support rods 42 to deflect synchronously, thereby causing the parallel quadrilateral cleaning scraper frame to reciprocate in the lateral direction. In this way, the scraper 47 can scrape off the dirt softened by the cleaning liquid on the glass curtain wall, improving the cleaning effect of the glass curtain wall.

[0047] like Figures 2 to 4 As shown, the linkage 45 includes two guide grooves 451 disposed opposite to each other on the central support rod 41. A slider 452 is slidably sleeved in the guide groove 451, and a sliding column 453 is fixedly disposed on the slider 452.

[0048] Two transmission rods 454 are rotatably mounted on the extension frame 3. The outer side of the transmission rods 454 is provided with a spiral groove 455. One end of the sliding column 453 is slidably sleeved in the spiral groove 455. The middle support rod 41 swings back and forth under the indirect drive of the drive motor, so that the sliding column 453 slides relative to each other in the spiral groove 455, while driving the transmission rods 454 to rotate back and forth.

[0049] The linkage 45 also includes a drive wheel 456 fixedly mounted on the transmission rod 454, a driven wheel 457 fixedly mounted on the brush roller 46, and a belt 458 connecting the drive wheel 456 and the driven wheel 457. The transmission rod 454, which rotates in both directions, drives the brush roller 46 to rotate synchronously, so that the brush roller 46 can brush the glass curtain wall sprayed with cleaning liquid, further cleaning the dirt in the same area and improving the cleaning effect of stubborn dirt.

[0050] Working principle: The central support rod 41 reciprocates under the drive of the drive unit 44. Through the linkage of the connecting rod 43, the two side support rods 42 can deflect synchronously. The two connecting rods 43 will also reciprocate in the longitudinal and transverse directions of the same plane, moving closer or further away from each other. This causes the parallelogram cleaning scraper frame to reciprocate in the transverse direction, allowing the scraper 47 to scrape away dirt on the glass curtain wall and improve the cleaning effect of the glass curtain wall. At the same time, under the linkage of the linkage 45, the brush rod 46 is driven to rotate in both directions to brush the surface of the glass curtain wall. In conjunction with the movement of the drone, the drone can perform two different cleaning methods on the dirt when passing the same dirt, further improving the cleaning effect of stubborn dirt. With the cooperation of the spray nozzle 49 and the spray hole 48, the cleaning liquid can be sprayed on the area to be cleaned when the scraper 47 and the brush rod 46 are cleaning, so as to wet and soften the dirt, making it easier for the scraper 47 and the brush rod 46 to clean the dirt, thus helping to improve the cleaning effect.

[0051] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0052] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cleaning mechanism of a glass curtain wall cleaning unmanned aerial vehicle, comprising a supply tank (1) arranged at the bottom of the unmanned aerial vehicle for supplying cleaning liquid, two metal pipes (2) are oppositely arranged on the supply tank (1), characterized in that, The cleaning mechanism of the glass curtain wall cleaning unmanned aerial vehicle further comprises: an extension frame (3) fixed between the two metal pipes (2); a cleaning part (4) provided on the extension frame (3), the metal pipe (2) being used to supply cleaning liquid to the cleaning part (4), and the cleaning part (4) being used to clean dirt on the surface of the glass curtain wall; a middle supporting rod (41) and two side supporting rods (42) which are parallel and alternately hinged to the extension frame (3); two connecting rods (43) which are oppositely hinged between the two side supporting rods (42), and two ends of the middle supporting rod (41) being hingedly connected to the two connecting rods (43) respectively; a scraping strip (47) fixed on the connecting rod (43); a driving member (44) used to drive the middle supporting rod (41) to reciprocally deflect; two brush rods (46) oppositely rotatingly provided on the extension frame (3); a linkage member (45) used to indirectly drive the two brush rods (46) to rotate by linking the driving member (44). 2.The cleaning mechanism of the glass curtain wall cleaning drone according to claim 1, characterized in that, The two side supporting rods (42) and the two connecting rods (43) jointly form a parallel four-side cleaning scraping frame which can be reciprocally changed, and the connecting rod (43) is coplanar and parallel to the scraping strip (47).

3. The cleaning mechanism of the glass curtain wall cleaning drone according to claim 2, characterized in that, The two brush rods (46) are parallel between the two connecting rods (43), and the brush rod (46) is coplanar and parallel to the scraping strip (47). 4.The cleaning mechanism of the glass curtain wall cleaning drone according to claim 1, characterized in that, The cleaning part (4) further comprises a plurality of spray holes (48) provided on the scraping strip (47) and a spray opening (49) oppositely provided on the extension frame (3), and the metal pipe (2) is used to deliver cleaning liquid to the spray holes (48) and the spray opening (49) and spray it onto the glass curtain wall. 5.The cleaning mechanism of the glass curtain wall cleaning drone according to claim 4, characterized in that, The spray opening (49) is located between the two brush rods (46), and the spray opening (49), the brush rod (46) and the scraping strip (47) are located on the same side of the extension frame (3). 6.The cleaning mechanism of the glass curtain wall cleaning drone according to claim 1, characterized in that, The driving member (44) comprises a driving motor fixed on the extension frame (3), one of the connecting rods (43) is fixed with an L-shaped supporting arm, one end of the L-shaped supporting arm is hingedly connected with a connecting arm, and one end of the connecting arm is fixed on the output end of the motor.

7. The cleaning mechanism of the glass curtain wall cleaning drone according to claim 6, characterized in that, The linkage member (45) comprises two guide grooves (451) oppositely provided on the middle supporting rod (41), a sliding block (452) is slidingly sleeved in the guide groove (451), and a sliding column (453) is fixed on the sliding block (452); two transmission rods (454) oppositely rotatingly provided on the extension frame (3), the transmission rod (454) being externally provided with a spiral groove (455), one end of the sliding column (453) being slidingly sleeved in the spiral groove (455), and the middle supporting rod (41) reciprocally swinging under the indirect driving of the driving motor, so that the sliding column (453) relatively slides in the spiral groove (455), and the transmission rod (454) is positively and negatively reciprocally rotated. 8.The cleaning mechanism of the glass curtain wall cleaning drone according to claim 7, characterized in that, The linkage (45) further comprises a driving wheel (456) fixed on the transmission rod (454), and a driven wheel (457) fixed on the brush rod (46), and a belt (458) is sleeved between the driving wheel (456) and the driven wheel (457).

Citation Information

Patent Citations

  • High-altitude glass curtain wall cleaning unmanned aerial vehicle

    CN209112445U