Floor cleaning robot

Abstract

The utility model relates to a ground cleaning robot, include: robot main body, wipe ground module, integrally detachably installed at the bottom of robot main body, including support, rotatoryly support on the support and can with a pair of rotary connector joint a pair of brush disc seat, detachably attached to a pair of brush disc seat a pair of cleaning pad, be used for to a pair of cleaning pad supply clean water a pair of nozzle, with a pair of nozzle fluid communication first fluid connector and act on a pair of cleaning pad's scraper water collection component, scraper water collection component is configured to be able to remove the superfluous liquid from a pair of cleaning pad and collect the liquid, scraper water collection component includes the water collection plate of being attached to the support, the pair of scraper of being located on the water collection plate and being able to with a pair of cleaning pad's rear portion's lower surface interference contact and second fluid connector, the water collection plate is configured to be able to guide the liquid falling on it to the second fluid connector place, water supply unit and sewage recovery unit.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and in particular to a floor cleaning robot capable of vacuuming and wiping the floor. Background Technology

[0002] With the development of smart home technology, floor cleaning robots have gradually become an important tool for floor cleaning in modern homes due to their high degree of automation and ease of use. For example, floor cleaning robots that combine vacuuming and mopping functions are being used more and more. Existing floor cleaning robots are usually equipped with cleaning pads that can be wetted by liquid. During operation, the cleaning pads are driven to rotate to continuously rub against the floor and wipe away stains.

[0003] However, these types of floor cleaning robots have some significant drawbacks in practical applications. For example, the cleaning pad will quickly absorb dirt and sewage during continuous wiping and gradually reach saturation (i.e., dirt), which reduces the cleaning effect. If the robot continues to wipe the floor at this time, it will not only fail to effectively remove new stains, but may also smear and drag the dirt already absorbed on the cleaning pad onto the relatively clean floor, causing secondary pollution and seriously affecting the overall cleaning effect and uniformity.

[0004] In existing technologies, a common approach to address the issue of dirty cleaning pads on floor cleaning robots is to have the robot return to a dedicated self-cleaning base station with the soiled pad. Upon returning to the base station, the robot cleans the pad (typically involving spraying water, scraping, squeezing, and drying). Only after the pad is clean can the robot set off again to perform its cleaning task. However, this method of returning to the base station has significant drawbacks: frequent returns to clean the pad lead to interruptions in the cleaning process, reduced efficiency, and shortened battery life. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this application is to provide a floor cleaning robot that can improve cleaning continuity and increase cleaning efficiency.

[0006] Therefore, this application provides a floor cleaning robot, comprising: a robot body configured to move autonomously on a surface to be cleaned; a rotary drive mechanism including at least one drive motor and a pair of rotary connectors tractively connected to the at least one drive motor, the pair of rotary connectors being disposed at the bottom of the robot body; a vacuuming unit including a vacuum port disposed at the bottom of the robot body, a dust box fluidly connected to the vacuum port, and a suction motor fluidly connected to the dust box, the suction motor providing suction power to draw dust-laden airflow from the vacuum port into the dust box; and a mopping module detachably mounted on the bottom of the robot body and located behind the vacuum port, the mopping module including a bracket capable of engaging with the bottom of the robot body, a pair of brush holders rotatably supported on the bracket and capable of engaging with the pair of rotary connectors, a pair of cleaning pads detachably attached to the pair of brush holders, and a pair of... The system comprises: nozzles, a first fluid connector in fluid communication with the pair of nozzles, and a scraper water collection component acting on the pair of cleaning pads, the scraper water collection component being configured to remove and collect excess liquid from the pair of cleaning pads, the scraper water collection component including a water collection plate mounted on the support, a pair of scrapers located on the water collection plate and capable of interference contact with the lower rear surface of the pair of cleaning pads, and a second fluid connector, the water collection plate being configured to guide liquid falling on it to the second fluid connector; a water supply unit including a clean water tank and a clean water pump in fluid communication with the outlet of the clean water tank; when the floor cleaning module is installed at the bottom of the robot body, the outlet of the clean water pump is in fluid communication with the first fluid connector; and a wastewater recovery unit including a wastewater tank and a suction power source in fluid communication with the wastewater tank; when the floor cleaning module is installed at the bottom of the robot body, the inlet of the wastewater tank is in fluid communication with the second fluid connector.

[0007] In some preferred embodiments, when the floor cleaning module is installed at the bottom of the robot body, the rotation axis of each of the brush pads is inclined, the front of the pair of cleaning pads contacts the ground to be cleaned, and the scraper water collection component is located below the rear of the pair of cleaning pads.

[0008] In some preferred embodiments, the cleaning pad is circular, and each of the scrapers extends radially and has a length equal to the radius of the corresponding cleaning pad.

[0009] In some preferred embodiments, the pair of nozzles and the first fluid connector are integrated into the water collection plate.

[0010] In some preferred embodiments, the water collection plate is provided with a fluid channel connecting the first fluid connector and the pair of nozzles.

[0011] In some preferred embodiments, the rear of the water collection plate has a groove, and the water collection plate is provided with a sewage channel connecting the groove and the second fluid connector; when the floor cleaning module is installed on the bottom of the robot body, the water collection plate gradually tilts downward from front to back, so that the liquid falling on the water collection plate can be collected at the groove.

[0012] In some preferred embodiments, the water collection plate is configured to be movably mounted on the bracket in a closed position and an open position; in the closed position, the water collection plate is vertically engaged with the bracket to position the pair of brush holders and the pair of cleaning pads between them; in the open position, at least one end of the water collection plate is separated from the bracket so that the pair of brush holders and the pair of cleaning pads can be removed from the bracket.

[0013] In some preferred embodiments, the rear end of the bracket is hinged to the rear end of the water collection plate.

[0014] In some preferred embodiments, the mopping module further includes a comb-like component located on the water collection plate and between the pair of scrapers, and capable of interference contact with the lower rear surface of the pair of cleaning pads.

[0015] In some preferred embodiments, the dust tank, the clean water tank, and the wastewater tank are all removable from the robot body, and the dust tank is located between the clean water tank and the wastewater tank.

[0016] Compared with the prior art, the beneficial effects of this application are as follows: The ground cleaning robot of this application can minimize or avoid the need to return to the base station after the cleaning pad gets dirty. It can significantly improve the effective usage time of the cleaning pad, thereby improving the continuity and overall efficiency of the cleaning operation while ensuring the cleaning effect, and effectively extending the effective working time of the robot on a single charge. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a ground cleaning robot according to an embodiment of this application;

[0018] Figure 2 for Figure 1 The diagram shows the floor cleaning robot with the mopping module disassembled from the main body of the robot.

[0019] Figure 3 This is a schematic diagram of a floor cleaning module according to an embodiment of this application;

[0020] Figure 4 for Figure 3 A schematic diagram of the floor cleaning module shown from another perspective;

[0021] Figure 5 for Figure 4 The floor cleaning module shown is in the open position with the water collection plate in the diagram.

[0022] Figure 6 This is a perspective view of a scraper water collection component according to an embodiment of this application;

[0023] Figure 7 for Figure 1 The diagram shows the internal structure of the ground cleaning robot after the top shell of the robot body is lifted.

[0024] Figure 8 This is a schematic diagram showing the flow path connection between the water supply unit, the sewage recycling unit, and the floor cleaning module according to one embodiment of this application. Detailed Implementation

[0025] This application relates to a floor cleaning robot. This floor cleaning robot can autonomously move on the surface to be cleaned, and simultaneously perform vacuuming and wet wiping operations during movement; furthermore, during the wet wiping process, it can simultaneously recover some of the dirt and liquid on the surface.

[0026] See Figure 1 and Figure 2 The illustration shows a floor cleaning robot 100, which has a circular robot body 1 and a detachable mopping module 2. The mopping module 2 is an integral module composed of multiple parts, which is detachably installed at the bottom of the robot body 1.

[0027] The robot body 1 includes a housing assembly 11, a navigation device (not shown), drive wheels 12, and steering wheels 13. The robot body 1 is configured to move autonomously along the surface to be cleaned under the action of the navigation device and the drive wheel mechanism. There are two drive wheels 12, spaced apart in the left-right direction. The steering wheels 13 are located in front of and between the two drive wheels 12. A recess 14 is provided at the bottom of the robot body 1.

[0028] The floor cleaning robot 100 also includes a vacuuming unit disposed on the robot body 1. The vacuuming unit includes a vacuum port 21 disposed at the bottom of the robot body 1, a dust bin 22 in fluid communication with the vacuum port 21, and a suction motor (not shown) in fluid communication with the dust bin 22. The suction motor provides suction power to draw dust-laden airflow from the vacuum port 21 into the dust bin 22. The vacuum port 21 is located between a pair of drive wheels 12 and behind the steering wheels 13, while also being located in front of the recess 14. A roller brush 23 is disposed at the vacuum port 21.

[0029] The robot body 1 also includes a rotary drive mechanism, which comprises one or a pair of motors (not shown) and a pair of rotary connectors 6. The pair of rotary connectors 6 are located at the recess 14. These rotary connectors 6 are driven by one or a pair of motors and are capable of rotating about their respective axes under the drive of those motors. In this example, the rotation directions of the pair of rotary connectors 6 are opposite.

[0030] The floor cleaning robot 100 also includes a mopping module 3. This mopping module 3 is detachably installed in the recess 14 at the bottom of the robot body 1. After the mopping module 3 is installed, it will be located behind the suction port 21.

[0031] like Figure 3 , Figure 4 and Figure 5 As shown, the floor cleaning module 3 includes a bracket 31, a pair of brush holders 32, a pair of cleaning pads 33 detachably mounted on the brush holders 32, a pair of nozzles 34, a first fluid connector 35, and a scraper water collection component 36. The bracket 31 is configured to mount the entire floor cleaning module 3 in a recess 14 at the bottom of the robot body 1. Several positioning or restraining mechanisms can be arranged on the bracket 31 and in the recess 14 at the bottom of the robot body 1 to ensure that the floor cleaning module 3 can be held in the recess 14 for a long time without being accidentally detached.

[0032] A pair of brush pads 32 are rotatably supported on a bracket 31 and engage with a pair of rotary connectors 6 when the mopping module 3 is installed in the recess 14. That is, the pair of rotary connectors 6 can drive the pair of brush pads 32 and the pair of cleaning pads 33 mounted thereon to rotate. In this example, when the mopping module 3 is installed in the recess 14, the rotation axes Y1 and Y2 of each brush pad 32 are inclined. Only the front portion of the pair of cleaning pads 33 contacts the floor to be cleaned, and the scraper water collection component 36 is located below the rear portion of the pair of cleaning pads 33.

[0033] The squeegee water collection component 36 is operable on a pair of cleaning pads 33 and is configured to remove and collect excess liquid from the pair of cleaning pads 33. The squeegee water collection component 36 includes a collection plate 361, a pair of squeegees 362 located on the collection plate 361 and capable of interference contact with the lower rear surfaces of the pair of cleaning pads 33, and a second fluid inlet 363. The collection plate 361 is configured to direct excess liquid falling on it (this excess liquid is the dirt scraped off the pair of cleaning pads 33 by the pair of squeegees 362) to the second fluid inlet 363. When the floor cleaning module 3 is installed in the recess 14, the squeegee water collection component 36 is located below the rear of the pair of cleaning pads 33.

[0034] Combination Figure 6 As shown, the rear part of the water collection plate 361 is provided with a groove 365, and the second fluid connector 363 and the groove 364 are in fluid communication through the sewage channel 365 located in the water collection plate 361. When the floor cleaning module 3 is installed in the recess 14, the water collection plate 361 will gradually tilt downward from front to back so that the liquid falling on the water collection plate 361 can be collected in the groove 364.

[0035] The cleaning pad 33 is circular, and each scraper 362 extends radially and has a length equal to the radius of the corresponding cleaning pad 33.

[0036] A pair of nozzles 34 and a first fluid connector 35 are also integrated on the water collection plate 361. The water collection plate 361 is provided with a fluid channel 366 connecting the first fluid connector 361 and the pair of nozzles 34. In this way, the pair of nozzles 34 will spray water from below the pair of cleaning pads 33 onto the pair of cleaning pads 33; water that is not absorbed by the pair of cleaning pads 33 will fall onto the water collection plate 361 for recycling.

[0037] The floor cleaning module 3 also includes a comb-like component 37. This comb-like component 37 is also located on the water collection plate 31 and between a pair of scrapers 362, and is able to make interference contact with the lower rear surface of a pair of cleaning pads 33. The comb-like component 37 can both clean the fibers and lint on the lower surface of the pair of cleaning pads 33 and scrape off the debris adhering to the lower surface of the pair of cleaning pads 33.

[0038] The rear end of the bracket 31 is hinged to the rear end of the water collection plate 361. The water collection plate 361 can move between a closed position and an open position by rotation. Figure 3 , Figure 4 As shown, with the water collection plate 361 in the closed position, the water collection plate 361 and the bracket 31 are joined vertically to position a pair of brush holders 32 and a pair of cleaning pads 33 between them. Figure 5As shown, when the water collection plate 361 is in the open position, one end of the water collection plate 361 is separated from the bracket 32 ​​so that a pair of brush holders 32 and a pair of cleaning pads 33 can be removed from the bracket 31. In other embodiments, the bracket and the water collection plate may also be arranged in a separable structure, that is, when the water collection plate is in the open position, the water collection plate will be separated from the bracket.

[0039] like Figure 7 and Figure 8 As shown, the floor cleaning robot 100 also includes a water supply unit 4 and a wastewater recycling unit 5. The water supply unit 4 includes a clean water tank 41 and a clean water pump 42 that is in fluid communication with the outlet of the clean water tank 41. The wastewater recycling unit 5 includes a wastewater tank 51 and a suction power source 52 that is in fluid communication with the wastewater tank 51. The suction power source 52 can be a pump or a vacuum motor, etc., and is configured to provide flow power for the wastewater to flow from the water collection plate 361 of the scraper water collection component 36 to the wastewater tank 51. When the floor cleaning module 3 is installed in the recess 14 at the bottom of the robot body 1, the outlet of the clean water pump 42 is in fluid communication with the first fluid connector 35, and the inlet of the wastewater tank 51 is in fluid communication with the second fluid connector 363.

[0040] In this example, the dust tank 22, the clean water tank 41, and the wastewater tank 51 can all be removed from the robot body 11, and the dust tank 22 is located between the clean water tank 41 and the wastewater tank 51.

[0041] In this application, during the floor cleaning process, a pair of cleaning pads 33 are simultaneously "self-cleaned" by the floor cleaning module, thus keeping the floor clean for a long time. Furthermore, since the floor cleaning module is detachable, users can choose to install, remove, and replace it as needed, and it can also be cleaned at any time, which improves the user experience.

[0042] The above embodiments are merely illustrative examples, and those skilled in the art can make equivalent substitutions or improvements within the scope of the claims. Other embodiments, in addition to the exemplary embodiments shown and described herein, are also covered within the scope of this information.

Claims

1. A ground cleaning robot, characterized in that, include: The robot's main body is designed to move autonomously on the surface to be cleaned. A rotary drive mechanism includes at least one drive motor and a pair of rotary connectors that are drively connected to the at least one drive motor, the pair of rotary connectors being arranged at the bottom of the robot body; The dust collection unit includes a dust collection port arranged at the bottom of the robot body, a dust box fluidly connected to the dust collection port, and a suction motor fluidly connected to the dust box. The suction motor provides suction power to draw dust-laden airflow from the dust collection port into the dust box. A floor cleaning module is detachably mounted on the bottom of the robot body and located behind the suction port. The floor cleaning module includes a bracket that can engage with the bottom of the robot body, a pair of brush holders that are rotatably supported on the bracket and can engage with a pair of rotating connectors, a pair of cleaning pads that are detachably attached to the pair of brush holders, a pair of nozzles for supplying clean water to the pair of cleaning pads, a first fluid connector that is in fluid communication with the pair of nozzles, and a scraper water collection component that acts on the pair of cleaning pads. The scraper water collection component is configured to remove excess liquid from the pair of cleaning pads and collect the liquid. The scraper water collection component includes a water collection plate mounted on the bracket, a pair of scrapers located on the water collection plate and capable of interference contact with the lower rear surface of the pair of cleaning pads, and a second fluid connector. The water collection plate is configured to guide liquid falling on it to the second fluid connector. The water supply unit includes a clean water tank and a clean water pump that is in fluid communication with the outlet of the clean water tank; when the floor cleaning module is installed on the bottom of the robot body, the outlet of the clean water pump is in fluid communication with the first fluid connector. as well as The wastewater recycling unit includes a wastewater tank and a suction power source in fluid communication with the wastewater tank; when the floor cleaning module is installed on the bottom of the robot body, the inlet of the wastewater tank is in fluid communication with the second fluid connector.

2. The ground cleaning robot according to claim 1, characterized in that: When the floor cleaning module is installed at the bottom of the robot body, the rotation axis of each of the brush pads is tilted, the front of the pair of cleaning pads contacts the ground to be cleaned, and the water collection component of the scraper is located below the rear of the pair of cleaning pads.

3. The ground cleaning robot according to claim 2, characterized in that: The cleaning pad is circular, and each of the scrapers extends radially and has a length equal to the radius of the corresponding cleaning pad.

4. The ground cleaning robot according to claim 2, characterized in that: The pair of nozzles and the first fluid connector are integrated on the water collection plate.

5. The ground cleaning robot according to claim 4, characterized in that: The water collection plate is provided with a fluid channel connecting the first fluid connector and the pair of nozzles.

6. The ground cleaning robot according to claim 2, characterized in that: The rear of the water collection plate has a groove, and the water collection plate is provided with a sewage channel connecting the groove and the second fluid connector; when the floor cleaning module is installed on the bottom of the robot body, the water collection plate gradually tilts downward from front to back so that the liquid falling on the water collection plate can be collected at the groove.

7. The ground cleaning robot according to claim 2, characterized in that: The water collection plate is configured to be movably mounted on the bracket in a closed position and an open position; in the closed position, the water collection plate is engaged with the bracket to position the pair of brush holders and the pair of cleaning pads between them; in the open position, at least one end of the water collection plate is separated from the bracket so that the pair of brush holders and the pair of cleaning pads can be removed from the bracket.

8. The ground cleaning robot according to claim 7, characterized in that: The rear end of the bracket is hinged to the rear end of the water collection plate.

9. The ground cleaning robot according to claim 2, characterized in that: The floor cleaning module also includes a comb-like component located on the water collection plate and between the pair of scrapers, and capable of interference contact with the lower rear surface of the pair of cleaning pads.

10. The ground cleaning robot according to claim 1, characterized in that: The dust tank, the clean water tank, and the wastewater tank can all be removed from the robot body, and the dust tank is located between the clean water tank and the wastewater tank.

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