A cleaning robot

Abstract

The application discloses a cleaning robot, which comprises a body, a roller scraping strip and a water receiving part. The body is provided with a sewage tank and a sewage collecting cavity communicated with the sewage tank. The roller is rotatably connected to the bottom of the body and located at the front side or the rear side of the sewage tank. The scraping strip is connected to the body and in contact with the outer peripheral surface of the roller. The scraping strip is used for scraping off dirt on the roller and guiding the dirt on the scraping strip to the sewage tank. The water receiving part is located below the scraping strip and connected to the body and in contact with the outer peripheral surface of the roller. The water receiving part is used for guiding the received dirt to the sewage tank.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more particularly to a cleaning robot. Background Technology

[0002] As people's living standards improve, cleaning robots are being used more and more widely in daily life and work. Cleaning robots can save cleaning manpower and improve cleaning efficiency. The cleaning function of cleaning robots is generally achieved through side brushes and rollers. The side brushes are used for sweeping, and the rollers are used for washing.

[0003] In related technologies, cleaning robots typically have a squeegee that contacts the roller. The squeegee scrapes the wastewater off the roller and guides it into a wastewater tank, preventing wastewater from dripping onto the ground and causing secondary pollution during the cleaning process.

[0004] However, during the movement of the cleaning robot, the wastewater attached to the squeegee may drip onto the clean floor, causing secondary pollution. Utility Model Content

[0005] This application provides a cleaning robot that can prevent dirt on the scraper from dripping onto the clean floor and causing secondary pollution.

[0006] Specifically, a cleaning robot includes: The machine body is equipped with a sewage tank and a sludge collection chamber connected to the sewage tank; A roller is rotatably connected to the bottom of the machine body, and the roller is located on the front or rear side of the sewage tank; A scraper, connected to the machine body and in contact with the outer peripheral surface of the roller, is used to scrape away dirt from the roller and to guide the dirt on the scraper to the wastewater tank; and, A water receiving component is located below the scraper. The water receiving component is connected to the machine body and contacts the outer peripheral surface of the roller. The water receiving component is used to guide the collected dirt to the wastewater tank.

[0007] The beneficial effects of this application are as follows: by setting a water receiving device below the scraper, the water receiving device acts as a second line of defense below the scraper. The water receiving device can intercept dirt dripping from the scraper and the roller. The dirt dripping onto the water receiving device can be guided into the wastewater tank by the water receiving device, thereby preventing dirt on the scraper and the roller from dripping onto the clean ground and causing secondary pollution to the clean ground. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a partial structural diagram of a cleaning robot in one embodiment of this application; Figure 2 for Figure 1 Enlarged diagram of point A in the diagram; Figure 3 This is a partial structural diagram of the cleaning robot in another embodiment of this application; Figure 4 This is a schematic diagram of the structure of a sewage tank in one embodiment of this application; Figure 5 for Figure 4 Enlarged diagram of point B in the diagram; Figure 6 This is a partial structural schematic diagram of the sewage tank in one embodiment of this application; Figure 7 This is a schematic diagram of the scraper from a first-view perspective in one embodiment of this application; Figure 8 This is a schematic diagram of the scraper from a second perspective in one embodiment of this application.

[0010] Figure label: 10. Body; 11. Wastewater tank; 111. Wastewater inlet; 112. First tank; 113. Second tank; 114. Overflow tank; 12. Filter screen; 121. First partition; 122. Second partition; 13. Drain; 14. Partition; 15. Baffle; 151. Water outlet; 16. Body; 17. Wastewater tank; 181. Head; 182. Tail; 19. Sewage collection chamber; 191. Drain; 20. Roller; 30. Scraper; 40. Water receiving component; 41. First plate; 42. Second plate; 50. Drain. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0012] In related technologies, cleaning robots typically have a squeegee that contacts the roller. The squeegee scrapes the wastewater off the roller and guides it into a wastewater tank, preventing wastewater from dripping onto the ground and causing secondary pollution during the cleaning process.

[0013] During the movement of the cleaning robot, wastewater adhering to the squeegee may drip onto the clean floor, causing secondary pollution. For example, when problems such as roller aging and shrinking or squeegee wear out, the contact between the squeegee and the roller may become less tight. Wastewater on the roller and squeegee may flow along the gap between the squeegee and the roller to the bottom surface of the squeegee. Subsequently, the wastewater on the bottom surface of the squeegee drips onto the clean floor under the weight of the squeegee, causing secondary pollution.

[0014] In view of the above problems, this application provides a cleaning robot to solve the problem in the related technology that, during the movement of the cleaning robot, the sewage attached to the squeegee may drip onto the clean ground, causing secondary pollution to the clean ground.

[0015] Specifically, such as Figure 1 and Figure 2 As shown, the cleaning robot includes a body 10, a roller 20, a scraper 30, and a water-collecting component 40. The cleaning robot can be a sweeping and mopping robot or a floor-wiping robot, etc.; this application does not specifically limit the type of cleaning robot.

[0016] The machine body 10 includes a wastewater tank 11 and a sludge collection chamber 19 connected to the wastewater tank 11. The wastewater tank 11 stores dirt from the roller 20, including wastewater and particulate dirt. The sludge collection chamber 19 stores the dirt from the wastewater tank 11. The machine body 10 may be equipped with a suction device connected to the sludge collection chamber 19. The suction device, such as a water pump or air pump, provides suction to discharge dirt from the wastewater tank 11 into the sludge collection chamber 19. The sludge collection chamber 19 may also have a drain outlet 191, allowing dirt to be discharged from the chamber.

[0017] The roller 20 is rotatably connected to the bottom of the body 10. The roller 20 can rotate relative to the body 10 around its axis of rotation to scrub the floor. The roller 20 can be made of elastic and absorbent materials such as sponge or cloth. The roller 20 is located on the front or rear side of the wastewater tank 11. It is understood that the cleaning robot's travel direction includes a forward direction X1 and a backward direction X2. The body 10 has a head 181 (also called the front section) and a tail 182 (also called the rear section). From the tail 182 to the head 181... The direction is the forward direction X1 of the cleaning robot, and the direction from the head 181 to the tail 182 is the backward direction X2 of the cleaning robot. Specifically, in this application, the roller 20 can be located on the side of the sewage tank 11 along the forward direction X1 of the cleaning robot or on the side along the backward direction X2. When the roller 20 is located on the side of the sewage tank 11 along the forward direction X1 of the cleaning robot, the roller 20 is located on the front side of the sewage tank 11; when the roller 20 is located on the side of the sewage tank 11 along the backward direction X2 of the cleaning robot, the roller 20 is located on the rear side of the sewage tank 11.

[0018] The scraper 30 is connected to the machine body 10 and contacts the outer peripheral surface of the roller 20. The scraper 30 is used to scrape off dirt on the roller 20 and guide the dirt on the scraper 30 to the sewage tank 11. When the roller 20 rotates, the scraper 30 can scrape off the sewage and particulate dirt on the roller 20 and guide the dirt to the sewage tank 11 for storage.

[0019] The water receiving part 40 is located below the scraper 30. The water receiving part 40 is connected to the machine body 10 and contacts the outer peripheral surface of the roller 20. The water receiving part 40 is used to guide the collected dirt to the sewage tank 11.

[0020] Understandably, by setting a water receiving component 40 below the scraper 30, the water receiving component 40 acts as a second line of defense below the scraper 30. The water receiving component 40 can intercept dirt dripping from the scraper 30 and the roller 20. The dirt dripping onto the water receiving component 40 can be guided by the water receiving component 40 to the wastewater tank 11 for storage, thereby preventing dirt on the scraper 30 and the roller 20 from dripping onto the clean ground and causing secondary pollution to the clean ground.

[0021] In some embodiments, along the rotation direction R of the roller 20, the water receiving element 40 is located downstream of the scraper 30, such that when the roller 20 rotates, any portion of the outer peripheral surface of the roller 20 sequentially contacts the scraper 30 and the water receiving element 40. It is understood that... Figure 1 Taking the perspective shown as an example, when the scraper 30 and the water receiving part 40 are located behind the roller 20, the rotation direction R of the roller 20 is counterclockwise; when the scraper 30 and the water receiving part 40 are located in front of the roller 20, the rotation direction R of the roller 20 is clockwise.

[0022] In some embodiments, the interference fit between the water receiving element 40 and the roller 20 is less than the interference fit between the scraper 30 and the roller 20. In other words, compared to the contact portion between the scraper 30 and the roller 20, the contact portion between the water receiving element 40 and the roller 20 is farther from the axis of the roller 20, and the length of the contact portion between the water receiving element 40 and the roller 20 inserted into the roller 20 is shorter, or the water receiving element 40 just contacts the outer surface of the roller 20. This ensures that during the rotation of the roller 20, the dirt on the roller 20 is scraped off by the scraper 30, preventing the dirt on the roller 20 from being scraped off by the water receiving element 40 and flowing down the bottom surface of the water receiving element 40 before dripping onto the ground. In addition, the friction between the water receiving element 40 and the roller 20 is small, which can reduce the wear and tear on the roller 20 caused by friction with the water receiving element 40, thereby extending the service life of the roller 20.

[0023] Furthermore, since the water receiving part 40 is in contact with the roller 20, when the dirt dripping from the scraper 30 flows into the gap between the water receiving part 40 and the roller 20, the dirt in the gap is difficult to continue flowing downward due to the obstruction of the water receiving part 40, so that the roller 20 has enough time to reabsorb the sewage and other dirt in the gap, which can prevent the dirt in the gap from dripping onto the ground.

[0024] In some embodiments, the scraper 30 may extend along the axial direction YY of the roller 20, and the length of the scraper 30 along the axial direction YY of the roller 20 may be greater than or equal to the length of the axial direction YY of the roller 20, so that the scraper 30 can scrape off dirt from a larger portion of the roller 20. The axial direction YY of the roller 20 is the direction in which the rotation axis of the roller 20 extends.

[0025] Similarly, the water receiving part 40 extends along the axial direction YY of the roller 20, and the length of the water receiving part 40 along the axial direction YY of the roller 20 can be greater than or equal to the length of the axial direction YY of the roller 20, so that the water receiving part 40 can receive a larger range of dirt.

[0026] In some embodiments, the surface of the scraper 30 used for guiding dirt can extend downward at an angle from the end in contact with the roller 20 toward the sewage tank 11, so that the dirt on the scraper 30 can move better into the sewage tank 11 along the angle of the scraper 30.

[0027] In some embodiments, the scraper 30 is made of a hard material to effectively scrape away dirt from the roller 20.

[0028] In some embodiments, the wastewater tank 11 may have a wastewater inlet 111 facing the roller 20. Dirt on the scraper 30 and the water receiving member 40 can enter the wastewater tank 11 through the wastewater inlet 111. The scraper 30 and the water receiving member 40 may be located on the side of the wastewater tank 11 close to the roller 20. The scraper 30 may extend to the outside of the wastewater inlet 111 and contact the outer side of the portion of the machine body 10 that surrounds the wastewater inlet 111. The scraper 30 may also pass through the wastewater inlet 111 to extend into the wastewater tank 11.

[0029] The water receiving component 40 can extend to the outside of the sewage inlet 111 and contact the outer side of the portion of the body 10 that surrounds the sewage inlet 111. The water receiving component 40 can also pass through the sewage inlet 111 to extend into the sewage tank 11. In other embodiments, the sewage inlet 111 can also be located in other positions of the sewage tank 11, such as at the top of the sewage tank 11.

[0030] See Figure 1 for further details. Figure 2 As shown, in some embodiments, the water receiving element 40 is in elastic contact with the roller 20. It is understood that, on the one hand, the water receiving element 40 can contact the roller 20, thereby preventing a large gap from forming between the water receiving element 40 and the roller 20, and preventing dirt dripping from the scraper 30 from dripping onto the ground through the gap between the water receiving element 40 and the roller 20. This improves the dirt interception capability of the water receiving element 40. Furthermore, when there is excessive sewage in the sewage tank 11, and the sewage overflows the water receiving element 40, the sewage in the sewage tank 11 can be discharged through the water receiving element 40 along... Figure 2 The direction indicated by the thick dashed arrow is redirected to the roller 20 and absorbed by the roller 20, which can prevent sewage in the sewage tank 11 from overflowing and dripping onto the ground. On the other hand, due to the elastic contact, the contact force between the water receiving part 40 and the roller 20 can be reduced, which can prevent dirt on the roller 20 from being scraped off by the water receiving part 40 and flowing down the bottom surface of the water receiving part 40 before dripping onto the ground. At the same time, it can reduce the wear and tear on the roller 20 caused by friction with the water receiving part 40. Furthermore, even after the roller 20 undergoes wear and tear and its diameter decreases, the water receiving part 40 can still maintain contact with the surface of the roller 20.

[0031] In some embodiments, the water-receiving element 40 is an elastic element, which makes the water-receiving element 40 elastic, thereby allowing the water-receiving element 40 to elastically contact the roller 20. The elastic element can be made of silicone, sponge, soft wool, or other elastic materials.

[0032] In some embodiments, the water receiving component 40 is movably connected to the machine body 10, and when the drum 20 rotates, the water receiving component 40 can move with the drum 20, so that as the drum 20 wears out with use, the water receiving component 40 can still be close to the drum 20 and maintain contact with the drum 20. The water receiving component 40 can be made of a rigid material or it can be an elastic component.

[0033] In one embodiment, the water receiving component 40 is rotatably connected to the machine body 10, and the extension direction of the rotation axis of the water receiving component 40 is parallel to the axial direction YY of the roller 20. When the roller 20 rotates, the water receiving component 40 can swing along with the roller 20. Of course, in other embodiments, the water receiving component 40 can also be slidably connected to the machine body 10, and the water receiving component 40 can slide vertically relative to the machine body 10. When the roller 20 rotates, the water receiving component 40 can slide up and down along with the roller 20.

[0034] In other embodiments, the water receiving component 40 can also be slidably connected to the body 10. The water receiving component 40 can slide horizontally relative to the body 10. When the diameter of the roller 20 decreases, the water receiving component 40 can move towards the roller 20. In this embodiment, the water receiving component 40 can be made of rigid or elastic material. A structural component, such as an elastic component or a motor, can be provided between the body 10 and the water receiving component 40 to drive the water receiving component 40 to move relative to the body 10.

[0035] It should be noted that, as Figure 2 As shown, the contact area between the water receiving part 40 and the roller 20 can be relatively small; for example... Figure 3 As shown, the contact area between the water receiving part 40 and the roller 20 can also be relatively large.

[0036] See also Figure 1 and Figure 2 As shown, in some embodiments, the sewage tank 11 includes a first tank body 112 and a second tank body 113 communicating with the first tank body 112. The second tank body 113 is also communicating with the sludge collection chamber 19. In the flow path of the dirt entering the sludge collection chamber 19, the first tank body 112 is located upstream of the second tank body 113. The first tank body 112 is used to receive the dirt scraped off from the roller 20 by the scraper 30.

[0037] The cleaning robot also includes a filter 12, which is detachably installed in the wastewater tank 11 and located between the first tank body 112 and the second tank body 113. It is understood that the filter 12 has multiple mesh openings, and the first tank body 112 can communicate with the second tank body 113 through these openings. The specific size of the mesh openings can be selected according to actual needs. Figure 2The direction indicated by the thin dashed arrow is the flow path of dirt entering the collection chamber 19. Dirt scraped off from the roller 20 by the scraper 30 enters the first tank 112, where particles and other solids are intercepted by the filter screen 12. Wastewater flows through the mesh into the second tank 113, where it can flow back to the collection chamber 19. The filter screen 12 prevents solid particles from flowing into the second tank 113 and clogging the drain outlet 191. Furthermore, the filter screen 12 is removable for easy cleaning. The filter screen 12 can be detachably connected to the wall of the wastewater tank 11 via snap-fit, threaded connection, magnetic connection, or other methods.

[0038] The dirt scraped off the roller 20 by the scraper 30 first enters the first tank 112, flows through the mesh of the filter screen 12 into the second tank 113, and then enters the dirt collection chamber 19.

[0039] In a specific embodiment, the first groove 112 is located above the second groove 113. In other embodiments, the first groove 112 may also be located between the second groove 113 and the roller 20.

[0040] like Figures 4 to 6 As shown, in some embodiments, the sewage tank 11 further includes an overflow prevention tank 114. Along the axial direction YY of the roller 20, at least one end of the first tank body 112 is provided with an overflow prevention tank 114. The overflow prevention tank 114 may be provided only at one end of the first tank body 112, or it may be provided at both ends of the first tank body 112. The overflow prevention tank 114 is connected to the second tank body 113 and is used to receive dirt overflowing from the first tank body 112.

[0041] Understandably, when the filter screen 12 is clogged by solid particles, preventing the wastewater in the first tank 112 from flowing into the second tank 113, the dirt can only remain in the first tank 112. At this time, the dirt in the first tank 112 can flow along... Figure 5 When the sewage enters the overflow tank 114 in the direction indicated by the thick dashed arrow, the sewage in the overflow tank 114 can flow along... Figure 6 The direction indicated by the thick dashed arrow is directly discharged into the second tank 113, which can prevent the sewage in the sewage tank 11 from overflowing and dripping onto the ground. When the cleaning robot finishes cleaning or returns to the base station, it can notify the user that the filter 12 is clogged through alarms or other means, so that the user can clean the filter 12.

[0042] In some embodiments, the overflow prevention trough 114 is disposed between the water receiving component 40 and the body 10. The overflow prevention trough 114 can be formed using the gap space between the water receiving component 40 and the body 10, thus eliminating the need for additional structures to form the overflow prevention trough 114 and simplifying the structure of the cleaning robot. In other embodiments, the overflow prevention trough 114 may also be disposed within the body 10.

[0043] In some embodiments, a baffle 14 is provided between the overflow tank 114 and the first tank 112, and a drain outlet 13 is provided on the body 10, which connects the overflow tank 114 and the second tank 113. The baffle 14 can prevent dirt in the first tank 112 from flowing directly into the overflow tank 114 and causing the drain outlet 13 to become blocked, so that dirt in the first tank 112 can only be discharged into the overflow tank 114 when it overflows the baffle 14. In other embodiments, the baffle 14 can also be configured as a filter screen, through which dirt in the first tank 112 enters the overflow tank 114. The drain outlet 13 can also be located at the bottom or side of the overflow tank 114.

[0044] In addition, when the cleaning robot is overcoming obstacles, such as thresholds, steps, carpets, slide rails or furniture legs, the sewage in the inlet tank will shake. As a result, the sewage in the inlet tank will pass through the partition 14 and flow into the overflow tank 114. This can prevent the sewage in the sewage tank 11 and the inlet tank from dripping onto the ground when the cleaning robot is overcoming obstacles.

[0045] In some embodiments, the water receiving component 40 includes a first plate 41 and a second plate 42. The first plate 41 extends along the axial direction YY of the roller 20 and extends downward at an angle from the end in contact with the roller 20 toward the sewage tank 11. The second plate 42 is located on one side of the first plate 41 along the axial direction YY of the roller 20 and is connected to the machine body 10 and the second plate 42. The first plate 41, the second plate 42 and the machine body 10 together form an overflow prevention tank 114.

[0046] The first plate 41 can be integrally formed with the second plate 42, or the first plate 41 and the second plate 42 can be formed separately and then spliced ​​together by welding, gluing, snap-fitting, threaded connection or other methods.

[0047] In some embodiments, the filter screen 12 includes a first partition 121 and a second partition 122. The first partition 121 is closer to the roller 20 than the second partition 122. A baffle 15 is provided between the first partition 121 and the second partition 122. The baffle 15 is disposed on the side of the filter screen 12 near the first groove 112. The baffle 15 extends along the axial direction YY of the roller 20. A water outlet 151 communicating with the first partition 121 and the second partition 122 is provided on the baffle 15.

[0048] It should be noted that when dirt enters the first tank 112, it first enters the first partition 121. The baffle 15 can intercept large solid particles, thereby reducing the amount of solid particles entering the second partition 122. In this way, even if the mesh of the filter screen 12 in the first partition 121 is blocked by solid particles, the sewage in the first partition 121 can flow into the second partition 122 through the water outlet 151 and into the second tank 113 through the mesh of the second partition 122, thus preventing the entire filter screen 12 from being blocked.

[0049] In some embodiments, the first tank 112 may be located above the second tank 113, in which case the baffle 15 is located above the filter screen 12. In other embodiments, the first tank 112 may also be located on the side of the second tank 113 closer to the roller 20. When the sewage tank 11 is located in front of the roller 20, the first tank 112 is located behind the second tank 113, and the baffle 15 is located behind the filter screen 12; when the sewage tank 11 is located behind the roller 20, the first tank 112 is located in front of the second tank 113, and the baffle 15 is located in front of the filter screen 12.

[0050] like Figure 7 and Figure 8 As shown, in some embodiments, a drain hole 50 is provided between the scraper 30 or the scraper 30 and the machine body 10. The drain hole 50 is connected to the first tank 112 and avoids the overflow tank 114. Understandably, in order to remove dirt from various parts of the outer periphery of the roller 20, the length of the scraper 30 along the axial direction YY of the roller 20 is usually set to be greater than or equal to the length of the roller 20 along the axial direction YY. Since the overflow groove 114 is located at the end of the first groove 112 along the axial direction YY of the roller 20, by providing a drain port 50 that can avoid the overflow groove 114, the dirt scraped off from the roller 20 by the scraper 30 flows along the scraper 30, and the drain port 50 guides the dirt, so that the dirt on the scraper 30 can be concentrated and flow into the first groove 112 through the drain port 50. This can prevent the dirt on the scraper 30 from flowing to the end of the scraper 30 and falling into the overflow groove 114.

[0051] The drain outlet 50 can be provided in one or more ways. When there are multiple drain outlets 50, the multiple drain outlets 50 can be arranged at intervals along the axial direction YY of the roller 20. At this time, the number of drain outlets 50 can be 2, 3 or more.

[0052] In some embodiments, the length of the first groove 112 along the axial direction YY of the roller 20 may be less than the length of the second groove 113 along the axial direction YY of the roller 20. The length of the roller 20 along the axial direction YY and the length of the scraper 30 along the axial direction YY of the roller 20 are both greater than the length of the first groove 112 along the axial direction YY of the roller 20. It is understandable that the length of the first groove 112 is relatively short, so that sufficient space can be reserved on the side of the first groove 112 along the axial direction YY of the roller 20 to form the overflow trough 114. The drain outlet 50 connected to the first groove 112 is usually set closer to the first groove 112, so that the drain outlet 50 can be concentrated in the area of ​​the scraper 30 adjacent to the first groove 112. This allows the drain outlet 50 to avoid the overflow trough 114, so that the dirt on the scraper 30 can flow into the first groove 112 through the drain outlet 50, preventing the dirt on the scraper 30 from flowing to the end of the scraper 30 and falling into the overflow trough 114.

[0053] In other embodiments, the axial length of the first groove 112 may also be equal to or slightly greater than the axial length of the second groove 113.

[0054] See also Figure 1 and Figure 2 As shown, in some embodiments, the machine body 10 includes a body 16 and a wastewater tank 17, with the roller 20 rotatably connected to the bottom of the body 16. The wastewater tank 17 is detachably connected to the body 16, and both the wastewater trough 11 and the sludge collection chamber 19 are located in the wastewater tank 17. When it is necessary to clean the sludge collection chamber 19 and the wastewater trough 11, the wastewater tank 17 can be separated from the body 16 for cleaning, making the cleaning of the wastewater chamber and the wastewater trough 11 more convenient. When it is necessary to clean the filter screen 12, the wastewater tank 17 can also be separated from the body 16 before the filter screen 12 can be disassembled, making the disassembly of the filter screen 12 more convenient.

[0055] The scraper 30 is connected to the wastewater tank 17 and / or the machine body 16, and the water receiving component 40 is connected to the wastewater tank 17 and / or the machine body 16. It is understood that the scraper 30 can be installed on either the wastewater tank 17 or the machine body 16, or it can be connected to both simultaneously; similarly, the water receiving component 40 can be installed on either the wastewater tank 17 or the machine body 16, or it can be connected to both simultaneously.

[0056] Furthermore, if the scraper 30 is mounted on the sewage tank 17, it can be integrally formed with the sewage tank 17 or detachably connected to the sewage tank 17. If the scraper 30 is mounted on the machine body 16, it can be integrally formed with the machine body 16 or detachably connected to the machine body 16.

[0057] In some embodiments, the sewage tank 11 is formed by a portion of the structure of the sewage tank 17, that is, the portion enclosing the sewage tank 11 is integrally designed with the sewage tank 17, and the sewage tank 11 cannot be separated from the sewage tank 17.

[0058] In some other embodiments, the sewage tank 17 includes a tank body and a sewage trough 11 body. The sewage trough 11 is disposed in the sewage trough 11 body and is detachably connected to the sewage tank 17. The sewage collection chamber 19 is disposed in the tank body. The sewage trough 11 can be separated from the sewage tank 17, so that the sewage trough 11 can be disassembled separately and cleaned.

[0059] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cleaning robot, characterized in that, include: The machine body is equipped with a sewage tank and a sludge collection chamber connected to the sewage tank; A roller is rotatably connected to the bottom of the machine body, and the roller is located on the front or rear side of the sewage tank; A scraper bar, connected to the machine body and in contact with the outer peripheral surface of the roller, is used to scrape off dirt from the roller and to guide the dirt on the scraper bar to the wastewater tank. as well as, A water receiving component is located below the scraper. The water receiving component is connected to the machine body and contacts the outer peripheral surface of the roller. The water receiving component is used to guide the collected dirt to the wastewater tank.

2. The cleaning robot according to claim 1, wherein, Along the rotation direction of the roller, the water receiving element is located downstream of the scraper. The interference fit between the water receiving component and the roller is less than the interference fit between the scraper and the roller.

3. The cleaning robot according to claim 1, wherein, The water receiving component makes elastic contact with the roller.

4. The cleaning robot according to claim 2, characterized in that, The water receiving component is an elastic component; and / or, the water receiving component is movably connected to the fuselage.

5. The cleaning robot according to claim 1, characterized in that, The wastewater tank includes a first tank body and a second tank body communicating with the first tank body. The second tank body is also communicating with the sludge collection chamber. In the flow path of the sludge entering the sludge collection chamber, the first tank body is located upstream of the second tank body. The first tank body is used to receive the sludge scraped off the roller by the scraper blade. The machine body also includes: A filter screen is detachably installed in the wastewater tank and is located between the first tank body and the second tank body.

6. The cleaning robot according to claim 5, characterized in that, The sewage tank also includes an overflow prevention tank. Along the axial direction of the roller, at least one end of the first tank is provided with the overflow prevention tank, which is connected to the second tank. The overflow prevention tank is used to receive dirt overflowing from the first tank.

7. The cleaning robot according to claim 6, characterized in that, The overflow prevention trough is located between the water receiving component and the machine body.

8. The cleaning robot according to claim 6, characterized in that, A partition is provided between the overflow prevention tank and the first tank body, and a drain outlet is provided on the machine body, which connects the overflow prevention tank and the second tank body.

9. The cleaning robot according to claim 6, characterized in that, A drain outlet is provided between the scraper blade or the scraper blade and the machine body. The drain outlet is connected to the first tank and avoids the overflow tank.

10. The cleaning robot according to claim 5, characterized in that, The filter screen includes a first section and a second section. The first section is closer to the roller than the second section. A baffle is provided between the first section and the second section. The baffle is located on the side of the filter screen near the first tank and extends along the axial direction of the roller. A water outlet is provided on the baffle to connect the first section and the second section.

11. The cleaning robot according to any one of claims 1 to 10, characterized in that, The fuselage includes: The machine body, wherein the roller is rotatably connected to the bottom of the machine body; A wastewater tank is detachably connected to the machine body, and both the wastewater trough and the sludge collection chamber are located in the wastewater tank; The scraper is connected to the sewage tank and / or the machine body, and the water receiving component is connected to the sewage tank and / or the machine body.

12. The cleaning robot according to claim 11, characterized in that, The sewage tank is formed from a portion of the structure of the sewage container; or... The sewage tank includes a tank body and a sewage trough, the sewage trough is located in the sewage trough body, the sewage trough body is detachably connected to the sewage tank, and the sewage collection chamber is located in the tank body.

Images