Multifunctional window cleaning machine

By combining negative pressure adsorption and intelligent movement technology with a dual cleaning design of a circular roller brush and a window cleaning cloth, the problem of poor cleaning effect and wastewater residue in existing window cleaning machines is solved, achieving efficient and comprehensive cleaning of glass windows, reducing the frequency of cloth replacement, and improving cleaning efficiency and equipment safety.

CN223979747UActive Publication Date: 2026-03-10LANGFANG WEISHIDA ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing window cleaning machines are inadequate in terms of cleaning effect, frequent cloth replacement, back-staining and residue problems, making it difficult to meet users' needs for efficient, comprehensive and residue-free cleaning.

Method used

It combines negative pressure adsorption with intelligent moving technology, and features a dual cleaning design with a roller brush and a window cleaning cloth. Equipped with a scraper and wastewater collection components, it adheres closely to the glass surface through negative pressure adsorption, uses water spray to soften stubborn stains, and collects wastewater in a timely manner to prevent backstains and residues.

Benefits of technology

It achieves efficient and comprehensive cleaning of glass windows, ensuring no blind spots, effectively removing stubborn stains, reducing the frequency of cloth replacement, improving cleaning efficiency and equipment safety, and preventing wastewater residue.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a multifunctional window cleaning machine, which relates to the technical field of window cleaning appliances and comprises a rack with a window cleaning machine shell fixed at the top, a connecting seat is fixed on the rear side of the bottom of the rack, an opening is formed in the middle of the connecting seat, a filter screen is fixedly mounted at the opening, and window cleaning cloth is adhered to the connecting seat through a magic tape structure. Elastic distance measuring structures are fixed to the four corners of the bottom of the connecting base in a penetrating mode, a negative-pressure motor assembly is fixedly installed in the middle of the top of the rack, and a negative-pressure opening in the bottom of the negative-pressure motor assembly fixedly communicates with an L-shaped negative-pressure bin; through combination of negative pressure adsorption and an intelligent moving technology, the window cleaning machine can be tightly attached to the surface of a glass window to ensure no dead corner in cleaning, the dual cleaning design of a round rolling brush and window cleaning cloth is matched with clear water spraying and high-speed rotation, stubborn stains are effectively softened and removed, the requirement for repeatedly replacing the cleaning cloth is avoided, efficient work of a scraper and a sewage collecting assembly is avoided, and the cleaning efficiency is improved. Sewage is cleaned immediately, anti-pollution and residual stains are prevented, and the glass window is ensured to be bright and clean as new.
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Description

Technical Field

[0001] This utility model relates to the technical field of window cleaning tools, and in particular to a multi-functional window cleaning machine. Background Technology

[0002] With the continuous development of modern architectural design and people's increasing demands for the quality of their living environment, the need for cleaning and maintenance of glass windows, as an important part of building appearance, is also growing. Traditional methods of cleaning glass windows mostly rely on manual hand-held cleaning tools, which is not only inefficient and labor-intensive, but also makes it difficult to ensure the uniformity and thoroughness of the cleaning.

[0003] In recent years, various window cleaning robots and window cleaning machines have appeared on the market, aiming to improve cleaning efficiency and effectiveness through automation and intelligence. However, these existing window cleaning machines have many functional shortcomings and fail to meet users' expectations for efficient, comprehensive, and residue-free cleaning.

[0004] Specifically, existing window cleaning machines generally face the following problems:

[0005] Insufficient cleaning effect: Some window cleaning machines are unable to effectively remove stubborn stains on glass windows during the wiping process, resulting in stains remaining after cleaning and affecting the appearance.

[0006] Frequent cloth replacement: Due to poor cleaning effect, users often need to replace the cloth frequently, which not only increases the cost of use, but also reduces cleaning efficiency.

[0007] Staining and residue issues: During the wiping process, some window cleaning machines may apply stains to already cleaned areas, causing secondary pollution. At the same time, the wastewater generated during the wiping process may also leave watermarks or residues on the glass windows.

[0008] Therefore, in response to the above problems, there is an urgent need in the market for a window cleaning machine with more comprehensive functions, more significant cleaning effect, and a higher degree of intelligence. The multi-functional window cleaning machine proposed in this invention is designed to solve these problems existing in window cleaning machines on the market, aiming to provide an intelligent cleaning device that can efficiently, comprehensively, and without residue clean glass windows. Utility Model Content

[0009] This utility model provides a multi-functional window cleaning machine, which solves the technical problems mentioned above.

[0010] To solve the above-mentioned technical problems, this utility model provides a multi-functional window cleaning machine, including a frame with a window cleaning machine shell fixed to the top, a connecting seat at the bottom rear of the frame with an opening in the middle, a filter screen fixedly installed at the opening, a window cleaning cloth attached to the connecting seat by a Velcro structure, elastic distance measuring structures fixedly fixed through the four corners of the bottom of the connecting seat, a negative pressure motor assembly fixedly installed at the top center of the frame, an L-shaped negative pressure chamber fixedly connected to the negative pressure opening at the bottom of the negative pressure motor assembly, the negative pressure chamber being connected to the filter screen, two sets of drive moving components fixedly installed through the top of the frame on both sides of the negative pressure motor assembly, and a front part of the frame fixedly... The machine is equipped with a scraper and a wastewater collection assembly. A slot is opened at the front bottom of the frame, and a circular roller brush is driven through the slot. A control main board is fixed inside the top of the window cleaning machine housing. The control main board is electrically connected to a negative pressure motor assembly and multiple elastic distance measuring structures. A switch assembly is electrically connected to the control main board and passes through the top of the window cleaning machine housing. A horn assembly is fixed through the top edge of the window cleaning machine housing. A vent is provided near the horn assembly and communicates with the exhaust end of the negative pressure motor assembly. A cleaning water tank and a second wastewater collection tank are fixed through the opposite sides of the top of the window cleaning machine housing. A gripper is fixedly installed in the middle of the top of the window cleaning machine housing.

[0011] Preferably, the scraper and sewage collection assembly includes a collection pipe seat fixedly installed inside the window cleaning machine housing. An arc-shaped suction nozzle is fixedly connected to the front of the collection pipe seat. A water inlet is opened at the lower front of the arc-shaped suction nozzle. An upper rubber scraper and a lower rubber scraper are fixedly connected to the upper and lower parts of the water inlet, respectively. A negative pressure pipe and a first sewage collection tank are fixedly connected to the upper and lower parts of the rear of the collection pipe seat, respectively. The negative pressure pipe is fixedly connected to the negative pressure chamber. A right-angle water inlet pipe is fixedly connected to the upper part of the first sewage collection tank. An exhaust channel is opened at the lower part of the first sewage collection tank near the right-angle water inlet pipe and communicates with the inside of the collection pipe seat. A U-shaped baffle is fixedly installed inside the collection pipe seat near the negative pressure pipe.

[0012] Preferably, a drive motor is fixed to one side of the rear of the arc-shaped suction nozzle and electrically connected to the control motherboard. Gears are fixed on both the output shaft of the drive motor and the circular roller brush. The two gears mesh with each other. Multiple water outlets are fixed through the top of the arc-shaped suction nozzle, and the water outlets of the multiple water outlets correspond to the circular roller brush.

[0013] Preferably, the top of the cleaning water tank has an opening, and a rubber plug is embedded in the opening for sealing. A clean water pump is fixed at the bottom of the cleaning water tank and electrically connected to the control main board. A hose is connected to one of the outlets of the clean water pump, and the hose is fixedly connected to multiple water outlets through a diverter pipe.

[0014] Preferably, the second sewage collection tank has an opening at the lower side, and a rubber plug is inserted into the opening. A water pump is fixed at the bottom of the second sewage collection tank and electrically connected to the control board. A hose is fixed at the water inlet of the water pump, and the hose passes through the second sewage collection tank and is fixedly connected to the lower part of the first sewage collection tank.

[0015] Preferably, the drive moving component includes a mounting housing fixed on the frame, two pulleys are rotatably connected inside the mounting housing, a moving transmission belt is connected between the two pulleys, the moving transmission belt extends out of the frame and the connecting seat, a drive motor is fixed to the side of the mounting housing and electrically connected to the control motherboard, and the output shaft of the drive motor passes through the mounting housing and is connected to one of the pulleys.

[0016] Preferably, the elastic ranging structure includes a telescopic cylinder fixedly connected to the frame and the connecting seat, a T-shaped telescopic column is connected through the inside of the telescopic cylinder, a limiting spring is sleeved on the outside of the T-shaped telescopic column inside the telescopic cylinder, and a ranging sensor is fixed at the bottom of the T-shaped telescopic column.

[0017] Preferably, the outer side of the window cleaning machine housing is provided with multiple radar sensors that are electrically connected to the control main board.

[0018] Compared with related technologies, the multifunctional window cleaning machine provided by this utility model has the following beneficial effects:

[0019] This invention provides a window cleaning machine that, through the combination of negative pressure adsorption and intelligent moving technology, can closely adhere to the surface of the glass window to ensure thorough cleaning without any blind spots. The dual cleaning design of the round roller brush and the window cleaning cloth, combined with water spraying and high-speed rotation, effectively softens and removes stubborn stains, avoiding the need to repeatedly change the cleaning cloth. The efficient operation of the scraper and wastewater collection component cleans up wastewater in real time, preventing back-staining and residual stains, and ensuring that the glass window is as clean as new.

[0020] This utility model provides a clever combination of a negative pressure motor assembly and a sewage collection system, which not only realizes the immediate collection of sewage, but also smoothly discharges sewage into the collection tank through negative pressure, thereby improving the efficiency of sewage treatment and the utilization rate of negative pressure. Moreover, the double-layer sewage collection tank design effectively prevents excessive sewage from being sucked into the negative pressure motor assembly, thereby improving the safety and service life of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a multifunctional window cleaning machine according to this utility model;

[0022] Figure 2 This is a bottom view schematic diagram of a multifunctional window cleaning machine according to the present invention;

[0023] Figure 3 This is a schematic front cross-sectional view of a multifunctional window cleaning machine according to this utility model;

[0024] Figure 4 This is a schematic diagram of the internal structure of a multifunctional window cleaning machine according to this utility model;

[0025] Figure 5 This is a schematic diagram of the scraper and sewage collection assembly of this utility model;

[0026] Figure 6 This is a schematic cross-sectional view of the elastic distance measuring structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the driving and moving component of this utility model.

[0028] Numbered components in the diagram: 1. Window cleaning machine housing; 2. Horn assembly; 3. Grip seat; 4. Vent opening; 5. Cleaning water tank; 51. Rubber plug one; 52. Water outlet; 6. Frame; 61. Filter screen; 7. Connecting seat; 71. Window cleaning cloth; 8. Second wastewater collection tank; 81. Rubber plug two; 9. Elastic distance measuring structure; 91. Distance sensor; 92. Limiting spring; 93. Telescopic cylinder; 94. T-shaped telescopic column; 10. Scraper and wastewater collection assembly; 101. Collection pipe seat; 1011. U-shaped... 102. Baffle; 103. Arc-shaped suction nozzle; 104. Upper rubber scraper; 105. Lower rubber scraper; 11. Drive moving assembly; 116. Drive motor; 117. Mounting housing; 118. Moving transmission belt; 119. Pulley; 120. Circular roller brush; 121. Drive motor; 132. Negative pressure motor assembly; 133. Negative pressure pipe; 144. Negative pressure chamber; 155. First sewage collection tank; 161. Right-angle water inlet pipe; 172. Exhaust channel; 183. Control main board; 194. Switch assembly. Detailed Implementation

[0029] Example 1, by Figure 1-7Provided is a multi-functional window cleaning machine, including a frame 6 with a window cleaning machine housing 1 fixed to the top, a connecting seat 7 at the bottom rear side of the frame 6, an opening in the middle of the connecting seat 7, a filter screen 61 fixedly installed at the opening, a window cleaning cloth 71 glued to the connecting seat 7 by a Velcro structure, elastic distance measuring structures 9 through the four corners of the bottom of the connecting seat 7, a negative pressure motor assembly 13 fixedly installed at the top center of the frame 6, an L-shaped negative pressure chamber 132 fixedly connected to the negative pressure opening at the bottom of the negative pressure motor assembly 13, the negative pressure chamber 132 correspondingly connected to the filter screen 61, two sets of drive moving components 11 through the two sides of the negative pressure motor assembly 13 at the top of the frame 6, and a scraper and dirt scraper fixedly installed at the front of the frame 6. The water collection component 10 has a slot at the bottom front of the frame 6, in which a circular roller brush 12 is installed. The top of the window cleaning machine housing 1 is fixed with a control main board 15. The control main board 15 is electrically connected to the negative pressure motor component 13 and multiple elastic distance measuring structures 9. The control main board 15 is electrically connected to a switch component 151, which penetrates the top of the window cleaning machine housing 1. A horn component 2 is fixed through the top edge of the window cleaning machine housing 1. A vent 4 is provided near the horn component 2 and is connected to the exhaust end of the negative pressure motor component 13. Cleaning water tanks 5 and second sewage collection tanks 8 are fixed through the opposite sides of the top of the window cleaning machine housing 1. A gripper 3 is fixedly installed in the middle of the top of the window cleaning machine housing 1.

[0030] Specifically, the operator presses the switch assembly 151 on the window cleaning machine, powering it on. A voice prompt from the speaker assembly 2 indicates the machine is running. The operator then grasps the gripper 3 and places the machine onto the glass to be cleaned. Multiple elastic distance measuring structures 9 begin detecting the distance between the machine and the glass. When the distance matches the set value, the control board 15 controls the negative pressure motor assembly 13 to generate negative pressure suction. This suction is transmitted to the outside through the filter 61, causing the machine to adhere tightly to the glass. The control board 15 then controls two drive movement assemblies 11 to move the machine across the glass. During this movement, the cleaning cloth 71 rubs against the glass, cleaning the surface dirt. Simultaneously, a radar sensor monitors the machine's position in real time to prevent collisions near the window. During operation, a scraper and wastewater collection assembly 10 remove wastewater from the glass, preventing backflow.

[0031] The window cleaning cloth 71, which is attached to the connecting seat 7 by a Velcro structure, can be replaced with a brush blade for easier cleaning later.

[0032] The grab seat 3 can be equipped with a connecting rod, which allows workers to grab the connecting rod and place the window cleaning machine on the large glass for cleaning. A safety rope can also be connected to the grab seat 3, with the other end of the safety rope tied indoors to prevent the window cleaning machine from falling and causing objects to fall from a height due to malfunction.

[0033] The control motherboard 15 integrates a battery and a wireless communication module.

[0034] In this embodiment, the scraper and sewage collection assembly 10 includes a collection pipe seat 101 fixedly installed inside the window cleaning machine housing 1. An arc-shaped suction nozzle 102 is fixedly connected to the front of the collection pipe seat 101. A water intake port is opened at the lower front of the arc-shaped suction nozzle 102. An upper rubber scraper 103 and a lower rubber scraper 104 are fixedly connected to the upper and lower parts of the water intake port, respectively. A negative pressure pipe 131 and a first sewage collection tank 14 are fixedly connected to the upper and lower parts of the rear of the collection pipe seat 101, respectively. The negative pressure pipe 131 is fixedly connected to the negative pressure chamber 132. A right-angle water inlet pipe 141 is fixedly connected to the upper part of the first sewage collection tank 14. An exhaust channel 142 is opened at the lower part of the first sewage collection tank 14 near the right-angle water inlet pipe 141 and is connected to the inside of the collection pipe seat 101. A U-shaped baffle 1011 is fixedly installed inside the collection pipe seat 101 near the negative pressure pipe 131.

[0035] Specifically, the scraper and sewage collection assembly 10 starts working. The upper rubber scraper 103 and lower rubber scraper 104 on the arc-shaped suction nozzle 102 are in close contact with the glass window to scrape off the sewage 101. The sewage is intercepted by the U-shaped baffle 1011 to prevent it from entering the negative pressure pipe 131. Instead, it enters the first sewage collection tank 14 through the right-angle water inlet pipe 141. The air rises with the negative pressure, re-enters the collection pipe seat 101 through the exhaust channel 142, and is sucked into the negative pressure chamber 132 through the negative pressure pipe 131. Finally, it is discharged from the outlet by the negative pressure motor assembly 13.

[0036] In this embodiment, an opening is provided on the lower side of the second sewage collection tank 8, and a rubber plug 81 is embedded in the opening. A water pump is fixed at the bottom of the second sewage collection tank 8 and electrically connected to the control main board 15. A hose is fixed at the water inlet of the water pump, and the hose passes through the second sewage collection tank 8 and is fixedly connected to the lower part of the first sewage collection tank 14.

[0037] Specifically, during the operation of the negative pressure motor assembly 13, the control motherboard 15 simultaneously controls the water pump in the second sewage collection tank 8 to work. When the water in the first sewage collection tank 14 rises to the water pump hose connection position, the water pump draws the sewage into the second sewage collection tank 8 for collection. Later, by opening the rubber stopper 81, the sewage in the second sewage collection tank 8 can be discharged.

[0038] In this embodiment, the drive moving component 11 includes a mounting housing 112 fixed on the frame 6. Two pulleys 114 are rotatably connected inside the mounting housing 112. A moving transmission belt 113 is connected between the two pulleys 114. The moving transmission belt 113 extends out of the frame 6 and the connecting seat 7. A drive motor 111 is fixed to the side of the mounting housing 112 and is electrically connected to the control motherboard 15. The output shaft of the drive motor 111 passes through the mounting housing 112 and is connected to one of the pulleys 114.

[0039] Specifically, the control motherboard 15 controls the two drive moving components 11 to work. The drive motor 111 drives the pulley 114 to rotate, and the moving transmission belt 113 drives the window cleaning machine to move on the glass window. The rotation speed of the window cleaning machine is moved by controlling the speed of the two drive motors 121, thereby realizing the intelligent movement of the window cleaning machine.

[0040] In this embodiment, the elastic ranging structure 9 includes a telescopic cylinder 93 fixedly connected to the frame 6 and the connecting seat 7. A T-shaped telescopic column 94 is connected vertically inside the telescopic cylinder 93. A limiting spring 92 is sleeved on the outside of the T-shaped telescopic column 94 inside the telescopic cylinder 93. A ranging sensor 91 is fixed at the bottom of the T-shaped telescopic column 94.

[0041] Specifically, the staff grasps the gripper 3 and places the window cleaning machine onto the glass that needs cleaning. At this time, multiple elastic distance measuring structures 9 start working. The distance measuring sensor 91 detects the distance between the window cleaning machine and the glass. When the distance measuring sensor 91 detects that the distance meets the set value, the control board 15 controls the negative pressure motor assembly 13 to work, generating negative pressure suction. The negative pressure suction is transmitted to the outside through the filter screen 61, making the window cleaning machine tightly adhere to the glass window. At the same time, the distance measuring sensor 91 retracts into the telescopic cylinder 93 under force, driving the T-shaped telescopic column 94 to move and compress the limit spring 92, ensuring a tight fit between the window cleaning machine and the glass.

[0042] In this embodiment, multiple radar sensors are provided on the outer side of the window cleaning machine housing 1 and electrically connected to the control motherboard 15. The radar sensors monitor the position of the window cleaning machine in real time to prevent collisions with the window edge.

[0043] In Example 2, based on Example 1, a drive motor 121 is fixed to one side of the rear of the arc-shaped suction nozzle 102 and electrically connected to the control board 15. Gears are fixed on both the output shaft of the drive motor 121 and the circular roller brush 12, and the two gears mesh with each other. Multiple water outlets 52 are fixed through the top of the arc-shaped suction nozzle 102, and the water outlets of the multiple water outlets 52 correspond to the circular roller brush 12. An opening is opened at the top of the cleaning water tank 5, and a rubber plug 51 is embedded in the opening for sealing. A clean water pump is fixed at the bottom of the cleaning water tank 5 and electrically connected to the control board 15. A hose is connected to the water outlet of the clean water pump, and the hose is fixedly connected to the multiple water outlets 52 through a diverter pipe.

[0044] Specifically, a drive motor 121 is fixed to one side of the rear of the arc-shaped suction nozzle 102 and is electrically connected to the control main board 15. Gears are fixed on both the output shaft of the drive motor 121 and the round brush 12. The two gears mesh with each other, causing the round brush 12 to rotate at high speed under the drive of the drive motor 121. During the movement of the window cleaning machine, the round brush 12 scrubs the dirt on the glass surface, improving cleaning efficiency. A clean water pump is fixed at the bottom of the cleaning water tank 5 and is electrically connected to the control main board 15. The clean water pump sprays water onto the surface of the round brush 12 through the hose and the diverter pipe to wet the bristles and soften the stains. The water outlet of the water outlet 52 corresponds to the round brush 12 to ensure that the clean water is accurately sprayed onto the bristles, so that the round brush 12 can better clean stubborn stains.

[0045] Working principle:

[0046] When in use, press the switch assembly 151 on the window cleaning machine to power it on. The machine will then announce the start of the cleaning process through the speaker assembly 2. The operator will grab the gripper 3 and place the window cleaning machine on the glass that needs to be cleaned. Multiple elastic distance measuring structures 9 will detect whether the window cleaning machine is in close contact with the glass.

[0047] When the window cleaning machine comes into contact with the glass window, the distance sensor 91 detects the distance to the glass window. When the distance is found to be in line with the set distance, the control board 15 controls the negative pressure motor assembly 13 to work, thereby generating negative pressure suction, which is transmitted to the outside through the filter screen 61. Thus, the window cleaning machine is adsorbed on the glass window, and the distance sensor 91 is forced to retract into the telescopic cylinder 93, which drives the T-shaped telescopic column 94 to move and squeeze the limit spring 92.

[0048] At this time, the control board 15 controls the two drive moving components 11 to move the window cleaning machine on the glass window. Specifically, the drive motor 111 drives one of the pulleys 114, which in turn drives the other pulley 114 via the moving transmission belt 113. The moving transmission belt 113 contacts the glass window, causing the window cleaning machine to move. During the movement, multiple radar sensors detect whether the window cleaning machine is close to the window edge, and the rotation speed of the two drive motors 121 is controlled to achieve the rotational movement of the window cleaning machine, thereby realizing the intelligent movement of the window cleaning machine.

[0049] During the movement of the window cleaning machine, the window cleaning cloth 71 comes into contact with and rubs against the glass window to clean the stains on the glass window surface. During the movement, the control motherboard 15 controls the drive motor to work, so that the round brush 12 rotates at high speed under the drive of the drive motor 121 to scrub the dirt on the glass surface. At the same time, the control motherboard 15 drives the water pump, and the water pump in the cleaning water tank 5 sprays water through the water outlet 52 onto the surface of the round brush 12 to wet the bristles and soften the stains, so that the round brush 12 can better clean stubborn stains.

[0050] During the movement of the window cleaning machine, wastewater on the glass window is cleaned by scrapers and wastewater collection assembly 10. The upper rubber scraper 103 and lower rubber scraper 104 on the arc-shaped suction nozzle 102 rub against the glass window during movement. After the negative pressure motor assembly 13 is started, a negative pressure is formed in the negative pressure chamber 132. Through the connection between the negative pressure pipe 131 and the negative pressure chamber 132, the negative pressure suction is transmitted to the arc-shaped suction nozzle 102 via the collection pipe seat 101. The upper rubber scraper 103 and lower rubber scraper 104 scrape the wastewater into the suction port of the arc-shaped suction nozzle 102. The negative pressure at the suction port removes the wastewater. When water is sucked in and enters the collection pipe seat 101, the U-shaped baffle 1011 prevents sewage from entering the negative pressure pipe 131. The sewage is guided by the U-shaped baffle 1011 and mixed with air into the first sewage collection tank 14. The sewage mixed with air enters the first sewage collection tank 14 from the right-angle water inlet pipe 141. The sewage flows to the bottom, while the air rises with the negative pressure, passes through the exhaust channel 142 and re-enters the collection pipe seat 101. It is then sucked in through the negative pressure pipe 131 into the negative pressure chamber 132. Finally, the negative pressure motor assembly 13 is discharged from the outlet.

[0051] During the operation of the negative pressure motor assembly 13, the control motherboard 15 simultaneously controls the water pump in the second sewage collection tank 8 to extract sewage from the first sewage collection tank 14. When the water level in the first sewage collection tank 14 rises to the connection position of the water pump hose, the sewage is extracted into the second sewage collection tank 8 for collection, preventing excessive sewage from the first sewage collection tank 14 from being sucked into the negative pressure motor assembly 13, thus improving safety. Later, the sewage in the second sewage collection tank 8 can be discharged by opening the rubber plug 2 81.

Claims

1. A multifunctional window cleaning machine comprising a frame (6) to which a window cleaning machine housing (1) is fixed at the top, characterized in that: The rack (6) bottom rear side is inherent to the connecting seat (7), the middle part of the connecting seat (7) is provided with an opening, the opening is fixedly installed with a filter screen (61), the connecting seat (7) is bonded with a window cleaning cloth (71) through a magic tape structure, the bottom four corners of the connecting seat (7) are fixedly penetrated with elastic distance measuring structures (9), the rack (6) top middle part is fixedly installed with a negative pressure motor assembly (13), the bottom negative pressure opening of the negative pressure motor assembly (13) is fixedly communicated with an L-shaped negative pressure bin (132), the negative pressure bin (132) is communicated with the filter screen (61), the rack (6) top is fixedly penetrated with two groups of driving moving assemblies (11) on both sides of the negative pressure motor assembly (13), the rack (6) front part is fixedly installed with a scraper and sewage collecting assembly (10), the rack (6) bottom front part is provided with a slot, the slot is drivingly installed with a round roller brush (12), the window cleaner shell (1) inner top is fixedly provided with a control mainboard (15), the control mainboard (15) is electrically connected with the negative pressure motor assembly (13) and the plurality of elastic distance measuring structures (9), the control mainboard (15) is electrically connected with a switch assembly (151), the switch assembly (151) penetrates the top of the window cleaner shell (1), the window cleaner shell (1) top edge is fixedly penetrated with a loudspeaker assembly (2), a breathable opening (4) is arranged near the loudspeaker assembly (2) and is communicated with the exhaust end of the negative pressure motor assembly (13), the window cleaner shell (1) top opposite sides are fixedly penetrated with a cleaning water tank (5) and a second sewage collecting tank (8), the window cleaner shell (1) top middle part is fixedly installed with a grab seat (3).

2. A multi-functional window cleaning robot according to claim 1, wherein The scraper and sewage collecting assembly (10) comprises a collecting pipe seat (101) fixedly installed in the window cleaner shell (1), an arc-shaped suction nozzle (102) fixedly communicated with the front part of the collecting pipe seat (101), a water suction opening is formed in the front lower part of the arc-shaped suction nozzle (102), an upper rubber scraper (103) and a lower rubber scraper (104) are fixedly connected in the water suction opening, a negative pressure pipeline (131) and a first sewage collecting tank (14) are fixedly communicated with the rear part of the collecting pipe seat (101), the negative pressure pipeline (131) is fixedly communicated with the negative pressure bin (132), a right-angle water inlet pipeline (141) is fixedly communicated with the upper part in the first sewage collecting tank (14), an exhaust passage (142) is formed in the lower part of the first sewage collecting tank (14) near the right-angle water inlet pipeline (141) and is communicated with the inside of the collecting pipe seat (101), a U-shaped baffle (1011) is fixedly arranged in the inside of the collecting pipe seat (101) near the negative pressure pipeline (131).

3. A multi-functional window cleaning machine according to claim 2, wherein The arc-shaped suction nozzle (102) rear side is fixedly provided with a driving motor (121) and is electrically connected with the control mainboard (15), gears are fixedly arranged on the output shaft of the driving motor (121) and the round roller brush (12), the two gears are meshed with each other, a plurality of water outlets (52) are fixedly penetrated with the top of the arc-shaped suction nozzle (102), the water outlets of the plurality of water outlets (52) correspond to the round roller brush (12).

4. A multi-functional window cleaning machine according to claim 3, wherein The cleaning water tank (5) top is provided with an opening, the opening is embedded with rubber plug one (51) sealing, the cleaning water tank (5) inner bottom is fixed with clean water pump and control mainboard (15) electric control connection, the clean water pump one water outlet is connected with the hose, the hose is communicated with multiple water outlet head (52) through the shunt pipe and is fixed.

5. A multi-functional window cleaning robot according to claim 2, wherein The second sewage collection tank (8) side lower part is provided with an opening, the opening is embedded with rubber plug two (81), the second sewage collection tank (8) inner bottom is fixed with water pump and control mainboard (15) electric control connection, the water pump inlet is fixed with the hose, the hose is fixedly communicated with the lower part in the first sewage collection tank (14) through the second sewage collection tank (8).

6. A multi-functional window cleaning robot according to claim 1, wherein The drive moving assembly (11) includes a mounting shell (112) fixed on the rack (6), two belt pulleys (114) are rotatably connected inside the mounting shell (112), a moving transmission belt (113) is transmissionally connected between the two belt pulleys (114), the moving transmission belt (113) extends out of the rack (6) and the connecting seat (7), a drive motor (111) is fixed on the side end of the mounting shell (112) and is electrically connected with the control mainboard (15), and the output shaft of the drive motor (111) penetrates the mounting shell (112) and is transmissionally connected with one of the belt pulleys (114).

7. A multi-functional window cleaning robot according to claim 1, wherein The elastic distance measuring structure (9) includes a telescopic cylinder (93) fixedly connected on the rack (6) and the connecting seat (7), a T-shaped telescopic column (94) is connected inside and outside the telescopic cylinder (93), a limiting spring (92) is sleeved outside the T-shaped telescopic column (94) in the telescopic cylinder (93), and a distance measuring sensor (91) is fixed on the bottom of the T-shaped telescopic column (94).

8. A multi-functional window cleaning robot according to claim 1, wherein The outer shell (1) of the window cleaning machine is provided with a plurality of radar sensors and a control mainboard (15) electrically connected.