WO2023202402A1 - Cleaning apparatus and cleaning robot - Google Patents

Abstract

A cleaning apparatus (1) and a cleaning robot; the cleaning apparatus (1) comprises: a cleaning roller (10), a water spraying apparatus (100), a water squeezing apparatus (200) and a waste water recovery apparatus; the waste water recovery apparatus comprises a water collection tank (300), the water collection tank (300) is provided with a tank opening (310) facing the cleaning roller (10), and the tank opening (310) has a first filter apparatus (320) arranged thereon. The cleaning roller (10) is provided as a mopping apparatus, and in the process of rolling cleans a floor surface; the water spraying apparatus (100) is provided to supply clean water to the cleaning roller (10), the clean water wetting the cleaning roller (10), and the cleaning roller (10) transferring the clean water to the floor surface so as to help wipe dirt off of the floor; dirt affixed to the cleaning roller (10) is removed from the cleaning roller (10) under the effects of the clean water from the water spraying apparatus (100) and the water squeezing apparatus (200), thus achieving the self-cleaning of the cleaning roller (10), thereby maintaining the cleaning roller (10) in a clean state from start to finish and improving a floor cleaning effect; providing the first filter apparatus (320) allows for recycling the waste water, thus extending the range of the cleaning apparatus (1).

Description

A cleaning device and cleaning robot

This application claims priority to the Chinese patent application submitted to the China Patent Office on April 21, 2022, with the application number 202210425282.4 and the invention title "A cleaning device and cleaning robot", the entire content of which is incorporated into this application by reference. .

Technical field

The present application relates to the technical field of cleaning robots, and in particular to a cleaning device and a cleaning robot.

Background technique

Most of the sweepers with mopping function currently on the market have a cotton rag hung at the bottom of the sweeper, and a water tank installed above the rag. When working, the water tank drips on the rag, and when the sweeper works, it drives the rag to move around the room. , because the rag contacts the ground, it plays the role of cleaning the ground.

However, the main problems with this mechanism are: 1. Because the rag does not have an automatic cleaning function, it will easily become dirty after working for a period of time and needs to be removed and cleaned manually. Continuing to work without cleaning will cause secondary pollution to the room; 2. The amount of water is insufficient. If it is controlled and continues to drip when it is not needed, it will damage or pollute the floor of the room; 3. The rag does not have an automatic cleaning function and requires the user to remove and wash it frequently during actual use, which seriously reduces the practicality of the smart sweeper.

Contents of the invention

One object of embodiments of the present invention is to provide a cleaning device that can solve the above-mentioned problems existing in the prior art.

Another object of embodiments of the present invention is to provide a cleaning robot that has good cleaning effect, is simple to use, requires less manual intervention, and is highly practical.

In order to achieve the above purpose, this application adopts the following technical solutions:

On the one hand, a cleaning device is provided, including a cleaning drum and a water spray device, a water squeezing device and a sewage recovery device arranged around the cleaning drum. In the rotation direction of the cleaning drum, the water spray device, The water squeezing device and the sewage recovery device are arranged in sequence. The sewage recovery device includes a sump, and the sump has a notch facing the cleaning drum.

On the other hand, a cleaning robot is provided, including the cleaning device as mentioned above.

The beneficial effects of this application are: In this solution, a cleaning roller is set up as a mopping device. The cleaning roller cleans the ground during the rolling process. A water spray device is set up to provide clean water for the cleaning roller. On the one hand, it wets the cleaning roller. Through the cleaning roller, Transfer clean water to the ground to facilitate the erasure of dirt on the ground. On the other hand, the dirt adsorbed by the cleaning roller is brought out from the cleaning roller under the squeezing action of the clean water from the water spray device and the water squeezing device, which can achieve The cleaning roller is self-cleaning, which can keep the cleaning roller in a clean state and improve the floor cleaning effect.

At the same time, the above device can reduce manual cleaning of the cleaning roller, reduce human participation in the cleaning work of the cleaning device itself, and improve practicality;

After being filtered by the first filtering device, the sewage enters the water collecting tank through the slot. The first filtering device can filter the larger impurity particles in the sewage and only allows the sewage containing smaller impurities to enter the water collecting tank 300, so that the sewage can be Filtration allows it to be recycled, extending the range of the cleaning device when the overall volume of the water tank is inconvenient.

Description of the drawings

The present application will be further described in detail below based on the drawings and embodiments.

Figure 1 is a schematic three-dimensional structural diagram of a cleaning device according to an embodiment of the present disclosure.

FIG. 2 is a schematic three-dimensional structural diagram of the cleaning device according to the embodiment of the present disclosure from another perspective.

Figure 3 is a cross-sectional view of the cleaning device according to the embodiment of the present disclosure.

Figure 4 is an enlarged view of position I in Figure 3.

FIG. 5 is a schematic diagram of the assembly state of the cleaning device and the compression spring according to the embodiment of the present disclosure.

Figure 6 is a schematic diagram of an exploded state of the cleaning device according to the embodiment of the present disclosure.

Figure 7 is an enlarged view of position II in Figure 6.

Figure 8 is a structural perspective view of a mop cleaning assembly provided by one embodiment of the present disclosure;

Figure 9 is an exploded structural view of the mop cleaning assembly shown in Figure 8;

Figure 10 is a top view of the mop cleaning assembly shown in Figure 8;

Figure 11 is a cross-sectional view of the mop cleaning assembly shown in Figure 10 along the A-A direction;

Figure 12 is a partial enlarged view of part B of the mop cleaning assembly shown in Figure 11;

Figure 13 is a partial enlarged view of part C of the mop cleaning assembly shown in Figure 9;

Figure 14 is a perspective cross-sectional view of the bracket shown in Figure 11;

Figure 15 is a structural perspective view of the water squeezing device and seal shown in Figure 13 from another angle;

FIG. 16 is a cross-sectional view of the mop cleaning assembly shown in FIG. 10 along the E-E direction.

Figure 17 is a three-dimensional structural cross-sectional view of the cleaning device according to the embodiment of the present disclosure.

Figure 18 is an enlarged view of III in Figure 17.

In the picture:
1. Cleaning device; 10. Cleaning roller; 11. Fixed hole; 12. First positioning structure; 13. Inner top wall; 15. Sealing edge; 20. Baffle; 21 abutting edge; 22. Introduction edge; 100. Water spray device; 110, dripping hole; 200, water squeezing device; 210, extrusion part; 211, opening slot; 212, third positioning structure; 220, guide part; 221, first guide section; 222, third Second diversion section; 230, fixed part; 300, water collecting tank; 310, notch; 320, first filtering device; 330, sewage pump; 340, second filtering device; 350, rubber stopper; 400, scraping tooth comb ; 50. Device bracket; 510. Cover plate; 520. Swing arm; 530. Drum motor; 610. Clean water pipe; 620. Sewage pipe; 630. Compression spring; 641. Circumferential limiter; 642. Limit buckle ; 70. Seal; 701. Second positioning structure; 702. Fourth positioning structure; 80. Resistance plate.

Detailed ways

In order to make the technical problems solved by the present application, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present application are described in further detail below. Obviously, the described embodiments are only part of the embodiments of the present application. Not all examples. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of this application.

In the description of this application, unless otherwise explicitly stated and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrated; It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In this application, unless otherwise explicitly stated and limited, the term "above" or "below" a first feature on a second feature may include direct contact between the first and second features, or may also include the first and second features. Not in direct contact but through additional characteristic contact between them. Furthermore, the terms "above", "above" and "above" a first feature on a second feature include the first feature being directly above and diagonally above the second feature, or simply mean that the first feature is higher in level than the second feature. “Below”, “under” and “under” the first feature is the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature is less horizontally than the second feature.

Embodiments of the present application provide a cleaning device. The cleaning device is mainly used when a cleaning robot mops the floor. It is used to recover sewage generated by mopping while mopping the floor. Of course, the cleaning device also It can be installed on other devices and equipment, such as a handheld cleaning device. In this embodiment, the cleaning device is installed on a cleaning robot as an example.

As shown in Figures 1-7, the cleaning device 1 includes a cleaning drum 10 and a water spray device 100, a water squeezing device 200 and a sewage recovery device arranged around the cleaning drum 10. In the rotation direction of the cleaning drum 10 On the water spray device, the water squeezing device and the sewage recovery device are arranged in sequence.

In this solution, a cleaning roller 10 is set up as a mopping device. The cleaning roller 10 cleans the ground during the rolling process. A water spray device 100 is set up to provide clean water for the cleaning roller 10. On the one hand, the cleaning roller 10 is wetted, and the cleaning roller 10 is used to clean the floor. Clean water is delivered to the ground to facilitate the erasure of dirt on the ground. On the other hand, the dirt adsorbed by the cleaning roller 10 is brought out from the cleaning roller 10 under the action of the water spray device 100 and the water squeezing device 200, which can The cleaning roller 10 is self-cleaning, thereby keeping the cleaning roller 10 in a clean state all the time and improving the floor cleaning effect.

At the same time, the above-mentioned device can reduce manual cleaning of the cleaning drum 10, reduce human participation in the cleaning work of the cleaning device 1 itself, and improve practicality.

In this solution, after the water spray device 100 sprays water on the cleaning roller 10, the cleaning roller 10 with a large amount of moisture rotates to the water squeezing device 200. The water squeezing device 200 and the cleaning roller 10 are arranged to interfere with each other, and The water squeezing device 200 is usually made of a material with strong rigidity, so that after the two come into contact, the cleaning roller 10 is extruded and deformed, and the moisture inside carries the dirt in it to form sewage and flows out together. The outflowing sewage continues along the cleaning roller 10 It flows in the direction of rotation and flows to the sewage recovery device and is recycled by the sewage recovery device. On the one hand, it avoids the sewage dripping to the ground and causes secondary pollution on the ground. On the other hand, the sewage can be filtered and recycled. In the case of the same water tank volume , extend the cruising range of the water tank.

In this solution, the water spray device 100, the water squeezing device 200 and the sewage recovery device are arranged in sequence along the rotation direction of the cleaning drum 10, so that the cleaning drum 10 rotates and first sprays water through the water spray device 100 and then squeezes water through the water squeezing device 200. Finally, it flows into the sewage recovery device, so that the clean water will not be contaminated by the squeezed sewage, thereby ensuring the cleaning effect of the cleaning drum 10 and improving the floor cleaning effect.

The sewage recovery device includes a water collecting tank 300. The water collecting tank 300 has a notch 310 facing the cleaning drum 10, and a first filtering device 320 is disposed on the notch 310. During use, the sewage is filtered by the first filtering device 320 and then enters the water collection tank 300 through the slot 310. The first filtering device 320 can filter larger impurity particles in the sewage and only allows sewage containing smaller impurities to enter. In the water collection tank 300, the sewage is filtered so that it can be recycled, and the cruising range of the cleaning device 1 can be extended when the overall volume of the water tank is inconvenient.

The water collection tank 300 can be used as a temporary storage container for accumulated water. In this embodiment, the water collection tank 300 is provided with a sewage pump 330. When the sewage in the water collection tank 300 accumulates to a certain extent, it can be pumped and discharged to the integrated water tank through the sewage pump 330. Clean the robot's waste tank or drain it directly into the sewer. A second filtering device 340 is provided at the water inlet of the sewage pump 330, and the second filtering device 340 is used to filter the sewage again. In this solution, the second filtering device can filter smaller impurities than the first filtering device, further preventing impurities from being sucked into the sewage pump 330 and causing damage to the sewage pump 330. At the same time, the sewage passes through the first filtering device 320 and the second filtering device. After the double filtration of the filter device 340, the impurity content in the filter device 340 will be greatly reduced, making it easier to recycle.

Specifically, in this solution, both the first filter device 320 and the second filter device 340 are filters, and the pore size of the second filter screen is smaller than the pore size of the first filter screen, so that the second filter screen can filter smaller impurities. Purpose.

It should be noted that, in order to further filter smaller impurities, the second filtering device 340 may be a filter cotton in addition to a filter screen, or a combination of a filter screen and filter cotton.

The impurities filtered by the second filtering device 340 will accumulate near the second filtering device 340. When they accumulate to a certain amount, the sewage will not be able to pass through the second filtering device 340 and be pumped by the sewage pump 330. Therefore, in this embodiment, A cleaning port is provided on the water collection tank 300 and adjacent to the second filtering device 340, through which accumulated impurities can be cleaned to prevent the second filtering device 340 from being blocked.

Furthermore, in order to ensure that the cleaning port does not leak when cleaning is not required, in this embodiment, a rubber plug 350 is detachably provided at the cleaning port. When the cleaning device 1 is working normally, the rubber plug 350 is installed in the cleaning port to seal the cleaning port. When it is necessary to clean the impurities in the water collection tank 300, the rubber plug 350 can be removed from the cleaning port and the collection tank 300 can be cleaned. After the internal impurities in the water tank 300 are cleaned, the rubber stopper 350 is replaced.

Specifically, the water spray device 100 in this embodiment is a water supply pipe. The axial direction of the water supply pipe is parallel to the axial direction of the cleaning drum 10. The water supply pipe is provided with a number of dripping water along its axial direction. Hole 110.

The dripping hole 110 is disposed on the side of the water supply pipe facing the cleaning drum 10. Preferably, the water supply pipe is disposed above the cleaning drum 10, and the dripping hole 110 is disposed at the bottom of the water supply pipe. drip holes on 110 are all connected with the inside of the water supply pipe. During use, by supplying water to the water supply pipe, the water in the water supply pipe flows out through the drip hole 110 and drips onto the cleaning drum 10 to wet and clean the cleaning drum 10 .

The arrangement of the drip holes 110 on the water supply pipe can be uniform or non-uniform. The number of the drip holes 110 can be reasonably designed according to the actual length and rotation speed of the cleaning drum 10, which is not specified in this solution. limited. In the case where the drip holes 110 are arranged non-uniformly, the drip holes 110 in the middle of the water supply pipe can be arranged densely, while the drip holes 110 near the end are sparsely arranged. In this way, there are more drip holes 110 in the middle. The moisture will gradually spread to both ends. In this way, in addition to ensuring that the cleaning drum 10 as a whole receives sufficient water flow to be fully cleaned, it can also prevent excessive water flow at both ends of the cleaning drum 10 from causing overflow of clean water.

In particular, it can be avoided that the cleaning roller 10 is squeezed by the water squeezing device when it contains a large amount of water, and the water suddenly overflows and is not diverted in time to cause overflow.

At the same time, the diffusion of more water in the middle to both ends also helps the dirt in the middle to be discharged to both ends, preventing dirt from accumulating in the middle and making it difficult to clean.

It should be pointed out that in order to achieve the above solution of large water volume in the middle and small water volume at both ends, it is not limited to the above-mentioned arrangement of denser drip holes 110 in the middle of the water supply pipe, but sparse arrangement of drip holes 110 near the ends. In other embodiments, the number of dripping holes 110 can also be evenly arranged along the length direction of the water supply pipe, and in terms of the size of the dripping holes 110, the size of the dripping holes 110 near the middle position of the water supply pipe is larger, which can The amount of water flowing out through it is larger, and the size of the drip hole 110 near the end of the water supply pipe is smaller, and the amount of water that can flow out through it is smaller.

The water squeezing device in this solution can be in various forms. Specifically, in this embodiment, the water squeezing device 200 is a water pressure rod arranged to offset the cleaning drum 10 along the axial direction of the cleaning drum 10, so The length of the water pressure rod in the axial direction of the cleaning drum 10 is greater than or equal to the length of the cleaning drum 10 . That is, the water pressure rod can cover the entire length direction of the cleaning drum 10 , so that during the rotation of the cleaning drum 10 , the moisture absorbed at each position in the length direction can be squeezed out.

In this embodiment, the water pressure rod is one, and its length is the same as the length of the cleaning drum 10. When it is set, the axis direction of the water pressure rod is parallel to the axis direction of the cleaning drum 10, and the water pressure rod is The two ends are respectively aligned with the two ends of the cleaning roller 10. In other embodiments, the water pressure rod may also have other shapes or arrangements.

For example, in other embodiments, the water pressure rod can also be arranged in a V-shaped structure or an arc-shaped structure, which gradually inclines from the middle to both ends toward the side away from the water spray device. When the water pressure rod has the above shape, the middle position of the water pressure rod first contacts the cleaning roller 10, and the sewage squeezed out by the cleaning roller 10 flows to both sides along the body of the water pressure rod, and is located on both sides. The sewage squeezed out by the body of the water pressure rod on the side mixes to form a larger water flow, which can wash away the dirt that is larger or more tightly adhered to the cleaning drum 10.

The water pressure rod described in this solution is not limited to the above-mentioned structure with only one water pressure rod. In other embodiments, there can also be multiple water pressure rods, and the plurality of water pressure rods are arranged along the cleaning drum. The axis directions of 10 are set in sequence.

In the case where there are multiple water pressure rods, the sum of the lengths of all the water pressure rods can be the same as the total length of the cleaning roller 10 , that is, each water pressure rod can squeeze water out of a section of the cleaning roller 10 , or , the sum of the lengths of all water pressure rods is greater than the total length of the cleaning drum 10 , and the adjacent water pressure rods are arranged parallel and staggered. In the length direction of the cleaning drum 10 , two adjacent water pressure rods Partially overlapping.

By arranging multiple water pressure rods, and each water pressure rod is not located on the same straight line, the squeezing force of the water pressure rod acting on the cleaning drum 10 is directed to the axis of the cleaning drum 10 from different directions. A cylindrical water pressure rod, this solution can disperse the force on the cleaning roller 10 and avoid exerting excessive squeezing force on the cleaning roller 10 in one direction, causing the rotation of the cleaning roller 10 to be affected.

As a preferred technical solution of the present application, the water pressure rod in this embodiment is a columnar aluminum rod.

It should be pointed out that the shape of the water pressure rod includes but is not limited to circular, elliptical, hexagonal, pentagonal, rectangular, square, triangular and other shapes in cross-section. It can also be special-shaped, as long as it can It suffices to have an action line or action surface capable of exerting a squeezing force on the cleaning roller 10 .

At the same time, the material of the water pressure rod is not limited to aluminum. In other solutions of this application, plastic rods or plastic rods can also be used. Nylon rod serves as water pressure rod.

As a preferred technical solution of the cleaning device, the water pressure rod may be fixedly installed, or the water pressure rod may rotate relative to the cleaning drum 10 .

In this solution, the relative rotation of the water pressure rod and the cleaning drum 10 is preferably synchronous relative rotation. Under this structure, the water pressure rod only squeezes the cleaning drum 10 to squeeze out the internal moisture. In this solution, the rotation of the water pressure rod is preferably in contact with the surface of the cleaning roller, and the rolling friction force of the cleaning roller 10 drives the water pressure rod to rotate.

Of course, the rotation of the water pressure rod is not limited to being driven only by the friction of the cleaning drum 10. In other embodiments, a rotational driving force can also be provided for the cleaning drum 10 separately, and the rotation of the cleaning drum 10 is combined with the pressure of the water rod. The rotation is set to be synchronous, that is, the surfaces in contact with the cleaning roller 10 and the water pressure rod do not slide relative to each other.

In other embodiments, asynchronous relative rotation between the water pressure rod and the cleaning drum 10 can also be used, that is, a rotational driving force is provided solely for the water pressure rod, so that the rotation between the two is asynchronous. Under this structure In addition to squeezing and draining the cleaning drum 10, the water pressure rod's surface can also slide relatively with the surface of the cleaning drum 10, thereby further scraping off the dirt on the surface of the cleaning drum 10.

It should be pointed out that the water squeezing device 200 in this application is not limited to a rod-shaped structure. In other embodiments, a water pressure scraper can also be used as the water squeezing device 200 . The water pressure scraper has a shape facing the cleaning drum 10 The extrusion surface is parallel to the axis of the cleaning drum 10 .

The sewage recovery device in this embodiment is used to collect the sewage containing dirt extruded from the cleaning drum 10 through the water squeezing device 200. The sewage recovery device includes a water collection tank 300, and the water collection tank 300 has a direction toward the cleaning drum. The slot 310 of the drum 10 is provided with a first filtering device 320 . During use, the sewage is filtered by the first filtering device 320 and then enters the water collecting tank 300 through the slot 310. The filtering device can filter larger impurity particles in the sewage and only allows sewage containing smaller impurities to enter the water collecting tank 300. middle.

The cleaning device 1 in this embodiment also includes a device bracket 50. The water spray device 100, the water squeezing device 200 and the sewage recovery device are all installed on the device bracket 50. The cleaning device 1 It is installed on the cleaning robot through the device bracket 50 . That is, in this solution, the cleaning roller 10 can be rotated relative to the device bracket 50, and the side of the cleaning roller 10 facing the ground protrudes from the device bracket 50, so that it can fully contact the ground during operation.

Specifically, with reference to Figures 1, 2, 5, and 6, the device bracket 50 in this embodiment includes a cover 510 and a swing arm 520 extending to the same side at both ends of the cover 510. The cleaning device 1 is movably installed on the cleaning robot through the swing arm 520.

In this embodiment, the swing arm 520 is hinged to the cleaning robot, and the axis of the cleaning drum 10 and the swing arm 520 are arranged parallel to the axis of the hinge axis of the cleaning robot, so that the cleaning drum 10 can swing around the hinge axis to prevent interference between the cleaning drum 10 and the ground. The amount and whether it is in contact with the ground are adjustable, and when the cleaning robot crosses the obstacle, the roller can be moved over the obstacle by swinging.

In order to further clean the cleaning drum 10 , as shown in FIG. 4 , in this embodiment, a scraping tooth comb 400 is provided in the rotation direction of the cleaning drum 10 and upstream of the water spray device 100 . The scraping tooth comb 400 is used to clean larger dirt adhered to the surface of the cleaning drum 10 , for example, it can remove hair adhered to the cleaning drum 10 .

Referring to FIGS. 1 and 2 , in order to realize the rotation of the cleaning drum 10 , this embodiment further includes a drum motor 530 and a transmission device. The cleaning drum 10 is driven by the drum motor 530 and is rotatably arranged. The transmission device is provided between the cleaning drum 10 and the drum motor 530, and is used to transmit the rotation of the power output shaft of the drum motor 530 to the cleaning drum 10 and adjust the rotation speed.

Optionally, in the embodiment of the present invention, please refer to Figures 8 to 11 together. Figure 8 is a structural perspective view of the cleaning device provided in this embodiment, and Figure 9 is an exploded structural view of the cleaning device shown in Figure 8. , Figure 10 is a top view of the cleaning device shown in Figure 8, Figure 11 is a cross-sectional view of the cleaning device shown in Figure 10 along the AA direction, the cleaning device includes a device bracket 50, a cleaning roller 10, a baffle 20, and a water collecting tank 300. A sewage recovery device, a water squeezing device 200 and a water spray device 100 are arranged in sequence. The water collection tank 300 has a groove facing the cleaning drum 10 The sewage enters the water collecting tank 300 through the slot 310.

The cleaning roller 10 is rotationally connected to the device bracket 50. The baffles 20 are provided at both ends of the cleaning roller 10. The baffles 20 are provided with abutting edges 21. The abutting edges 21 of the baffle 20 squeeze the cleaning roller 10 and can block cleaning. The sewage on the drum 10 passes through the baffle 20 along the axial direction of the cleaning drum 10 . The water collecting tank 300 is provided on one side of the cleaning drum 10 , and the water squeezing device 200 is provided between the baffles 20 on both ends of the cleaning drum 10 . The water squeezing device 200 squeezes the cleaning drum 10 and extends toward the water collecting tank 300 . The water spray device 100 is opposite to the cleaning drum 10 , and the water spray device 100 can spray cleaning liquid to the cleaning drum 10 .

Specifically, as shown in FIG. 11 , with the orientation or positional relationship shown in FIG. 11 as an example, the water squeezing device 200 is located on the upper right side of the cleaning drum 10 . When the cleaning drum 10 rolls around its own axis in the first direction D1, The cleaning drum 10 drives the cleaning device 1 forward. The circumferential outside of the cleaning drum 10 is in continuous rolling contact with the ground and wipes the ground. The circumferential outside of the cleaning drum 10 is also in continuous rolling contact with the water squeezing device 200. The part in contact with the water device 200 seeps out sewage under the squeezing action of the water squeezing device 200, and flows to the water squeezing device 200, and is guided to the water collection tank 300 through the water squeezing device 200. The water collection tank 300 collects the sewage introduced by the water squeezing device 200. Temporarily storing, in this way, the cleaning device 1 can recover the sewage generated on the cleaning drum 10 while mopping the floor. Among them, in Figure 11, the first direction is the clockwise direction.

When the cleaning drum 10 rotates, the water spray device 100 can spray cleaning fluid to the cleaning drum 10 . The cleaning fluid falls into the cleaning drum 10 and mixes with the stolen goods on the cleaning drum 10 to become sewage.

It should be noted that the cleaning roller 10 shown in FIG. 11 is only for illustration. In the specific implementation process, the circumferential outside of the cleaning roller 10 has a fluffy structure, and the circumferential outside of the cleaning roller 10 is in contact with the abutment edge 21 , when the cleaning roller 10 is squeezed by the abutting edge 21, the squeezed portion of the cleaning roller 10 can be compressed and the outer diameter becomes smaller accordingly.

In the cleaning device 1 provided in this embodiment, the baffles 20 are provided at both ends of the cleaning roller 10. The abutting edges 21 of the baffle 20 squeeze the cleaning roller 10 and block the upper sewage from the cleaning roller 10 from flowing along the cleaning roller. The axial direction of 10 passes through the baffle 20, thereby limiting the sewage adsorbed on the cleaning drum 10 between the baffles 20 at both ends of the cleaning drum 10, and preventing the sewage on the cleaning drum 10 from flowing to the ground from both ends of the cleaning drum 10. Moreover, the water squeezing device 200 is disposed between the baffles 20 at both ends of the cleaning drum 10. When the part of the cleaning drum 10 that absorbs sewage comes into contact with the water squeezing device 200, the sewage will be squeezed by the water squeezing device 200. The water seeps out and flows downstream to the water squeezing device 200, and then the water squeezing device 200 is directed to the water collection tank 300. In this way, the loss rate of sewage on the cleaning drum 10 is reduced, and the cleaning device 1 can effectively collect the sewage on the cleaning drum 10. .

Since the circumferential outer side of the cleaning roller 10 has a fluffy structure, the cleaning roller 10 can be compressed by the abutting edge 21 of the baffle 20 , so that the cleaning roller 10 can be compressed. The cleaning roller 10 is held by the abutting edge 21 The extruded part presses against the abutting edge 21 under its own elastic force, eliminating the gap between the two parts of the abutting edge 21 and the cleaning roller 10 that are in contact with each other, so that the two parts of the abutting edge 21 and the cleaning roller 10 are in contact with each other. The space is relatively close, effectively blocking sewage from passing between the two parts of the abutting edge 21 and the cleaning roller 10 that are in contact with each other. At the same time, the part of the cleaning roller 10 squeezed by the abutting edge 21 can also be compacted, so that the cleaning roller 10 is The portion squeezed by the abutting edge 21 is relatively dense, effectively blocking the passage of sewage from the portion of the cleaning drum 10 squeezed by the abutting edge 21 . This ensures the blocking effect of the baffle 20 on the sewage on the cleaning drum 10 .

Please continue to refer to the figures. In some embodiments, the baffle 20 is perpendicular to the cleaning drum 10 , and the abutting edge 21 is arc-shaped, and the arc is adapted to the circumferential outside of the cleaning drum 10 . Through the above arrangement, the abutting edge 21 and the cleaning roller 10 are more consistent when they contact each other. When the abutting edge 21 squeezes the cleaning roller 10 , the abutting edge 21 as a whole can be firmly attached to the cleaning surface along the outer circumferential direction of the cleaning roller 10 . The center of the circle of the drum 10 and the abutting edge 21 coincides with the axis of the cleaning drum 10. That is to say, the abutting edge 21 is always close to the cleaning drum 10 from one end to the other end, preventing the abutting edge 21 from contacting the cleaning drum 10. If there is a gap between them and water leakage occurs, the sewage between the two ends of the cleaning drum 10 can basically only be transferred to the water squeezing device 200 with the cleaning drum 10, and seep out under the squeezing of the water squeezing device 200 and flow to the water collection tank. 300.

Wherein, the arc shape is adapted to the circumferential outer side of the cleaning roller 10 means that when the abutting edge 21 of the baffle 20 squeezes the cleaning roller 10, the part of the cleaning roller 10 that is squeezed by the abutting edge 21 occurs. The cleaning roller 10 is compressed and the corresponding outer diameter becomes smaller. At this time, the outer diameter of the portion of the cleaning roller 10 pressed by the abutting edge 21 is equal to the diameter of the abutting edge 21 .

It can be understood that since the circumferential outer side of the cleaning roller 10 has a fluffy structure, when the cleaning roller 10 rolls, the portion of the cleaning roller 10 to be squeezed by the abutting edge 21 is in a fluffy state and gradually moves from one end of the abutting edge 21 Entering the squeeze zone, and enters the compressed state; as the cleaning roller 10 continues to roll, the part squeezed by the abutting edge 21 is in the compressed state, gradually exits the squeeze area corresponding to the abutting edge 21 from the other end of the abutting edge 21, and recovers. to a fluffy state. Since one end of the abutting edge 21 is firmly attached to the cleaning roller 10, it is difficult for the part of the cleaning roller 10 to be squeezed by the abutting edge 21 to enter the squeeze area directly from one end of the abutting edge 21 when it is in a fluffy state. Stuck will occur. Therefore, in some embodiments, the baffle 20 is also provided with an introduction edge 22 , one end of the introduction edge 22 is tangent to one end of the abutment edge 21 , and the other end of the introduction edge 22 is along the axis away from the cleaning roller 10 and facing downwards. The distance between each point on the abutment edge 21 and the axis of the cleaning roller 10 is equal everywhere, and the distance between each point on the introduction edge 22 and the axis of the cleaning roller 10 increases with the extension length of the introduction edge 22 where the point is located. In this way, before the part of the cleaning roller 10 to be squeezed by the abutting edge 21 enters the squeezing area corresponding to the abutting edge 21 , the introduction edge 22 can push the cleaning roller 10 to be squeezed by the abutting edge 21 The part of the cleaning roller 10 to be squeezed by the abutting edge 21 is pre-squeezed, and the part of the cleaning roller 10 to be squeezed by the abutting edge 21 is smoothly introduced into the extrusion area corresponding to the abutting edge 21 , so that the cleaning roller 10 can still be squeezed by the baffle 20 Maintain smooth rolling to prevent the part of the cleaning roller 10 to be squeezed by the abutting edge 21 from getting stuck at one end of the abutting edge 21 .

In some embodiments, lead-in edge 22 is arcuate.

In other embodiments, the lead-in edge 22 is linear.

Please also refer to FIG. 12 , which is an enlarged partial view of part B of the cleaning device 1 shown in FIG. 11 . In some embodiments, the water squeezing device 200 includes a squeezing part 210 and a flow guide part 220 . The pressing part 210 presses the cleaning roller 10 . The guide portion 220 includes a first guide section 221 and a second guide section 222. The first guide section 221 extends from the extrusion section 210 to above the water collection tank 300, and the second guide section 222 extends from the first guide section 221 to above the water collection tank 300. The end of 221 away from the extrusion part 210 extends downward into the water collecting tank 300 . The part of the cleaning roller 10 that is in contact with the extrusion part 210 seeps out sewage under the extrusion of the extrusion part 210. The sewage passes through the extrusion part 210 and is introduced through the first diversion section 221 and the second diversion section 222 in sequence. Within 300 meters of water collection tank. Through the above arrangement, when the sewage flows along the first guide section 221 to the end of the first guide section 221 away from the extrusion part 210, it can follow the second guide section 222 and fall downward into the water collection tank 300, and escape. The sewage in the second diversion section 222 falls into the water collection tank 300 approximately parallel to the second diversion section 222. In this way, the sewage can be prevented from flying horizontally into the water collection tank 300 after breaking away from the water squeezing device 200, and the falling of the sewage can be reduced. noise. At the same time, the guiding function of the second guide section 222 can cause the sewage to fall into a preset position in the water collection tank 300. The preset position can be the peripheral area of the filter structure in the water collection tank 300. That is, when the sewage falls into After reaching the preset position, the sewage can then pass through the filter structure and enter the inner area of the filter structure, thereby filtering the sewage and preventing the sewage from directly falling into the inner area of the filter structure from the water squeezing device 200 .

The entire water squeezing device 200 is disposed on the circumferential outside of the cleaning drum 10 parallel to the axial direction of the cleaning drum 10 .

The first guide section 221 extends along the forward direction of the cleaning roller 10 and slopes downward to the top of the collection tank 300 . The second guide section 222 extends along the forward direction of the cleaning roller 10 and slopes downward to the collection tank 300 . In the water tank 300 , and the inclination angle of the second guide section 222 is greater than the inclination angle of the first guide section 221 . It should be further noted that the first guide section 221 and the second guide section 222 can form an included angle, and the angle of the included angle can be set according to actual needs/situations.

In some embodiments, the water squeezing device 200 further includes a fixing part 230 , which is fixedly connected to the squeezing part 210 and/or the flow guide part 220 , and the fixing part 230 is provided with an opening slot 211 . The device bracket 50 is provided with a fixing hole 11 , and the fixing hole 11 is opposite to and connected with the opening slot 211 . The opening groove 211 and the fixing hole 11 are used to cooperate with each other to allow the external fixing member to penetrate, so that the water squeezing device 200 is fixed on the device bracket 50 .

During specific implementation, screws can be screwed into the fixing holes 11 and the opening slots 211 in sequence, thereby fixing the water squeezing device 200 to the device bracket 50 . It can be understood that arranging circumferentially sealed holes on the water squeezing device 200 to cooperate with the screws is difficult in the manufacturing process, and using the open groove 211 structure to cooperate with the fixing holes 11 can reduce the cost of the water squeezing device. 200, the manufacturing process is difficult, and the open groove 211 structure not only limits the screws radially, but also can be radially expanded and deformed to adapt to screws with larger outer diameters.

The opening groove 211 may be a U-shaped groove.

As shown in Figure 12, in some embodiments, the fixing part 230 is provided below the extrusion part 210 and the first guide section 221, and is fixedly connected with the extrusion part 210 and the first guide section 221, thereby, The fixing part 230 is fixed to the device support by screws or the like. After being mounted 50, it can better support the entire water squeezing device 200, optimize the force-bearing structure of the water squeezing device 200, and resist the force from the cleaning roller 10.

In some embodiments, the water spray device 100 is disposed parallel to the axial direction of the cleaning roller 10 . The water spray device 100 is provided with a plurality of water spray holes spaced along its own axial direction. The plurality of water spray holes are located at both ends of the cleaning roller 10 . between the baffles 20 on the cleaning roller 10 , and the opening of the water spray hole faces the cleaning drum 10 .

The cleaning liquid may be clean water, detergent, or a mixed liquid of clean water and detergent.

Please refer to Figures 12 and 13. Figure 13 is a partial enlarged view of part C of the cleaning device 1 shown in Figure 9. In some embodiments, the cleaning device 1 further includes a seal 70, and the seal 70 is provided on the water squeezing device 200. At both ends, the sealing member 70 seals the gap between the baffle 20 and the water squeezing device 200. The sealing member 70 can prevent the sewage on the water squeezing device 200 from passing through the sealing member 70 along the length direction of the water squeezing device 200. In this way, cleaning The sewage on the drum 10 can only flow to the water squeezing device 200 as much as possible, and is limited between the seals 70 on both ends of the water squeezing device 200, preventing the sewage on the cleaning drum 10 from flowing between the baffle 20 and the water squeezing device 200. The gap between them is lost, so that the sewage flowing through the water squeezing device 200 only flows to the water collection tank 300 as much as possible, which reduces the loss rate of sewage and ensures the effective collection of sewage by the cleaning device 1.

Please also refer to Figure 14. Figure 14 is a perspective cross-sectional view of the device bracket 50 shown in Figure 11. In some embodiments, the device bracket 50 is provided with a first positioning structure 12, and the seal 70 is provided with a second positioning structure 701. The first positioning structure 12 and the second positioning structure 701 are positioned and matched to achieve rapid positioning and assembly between the seal 70 and the device bracket 50 so that the installation angle of the seal 70 relative to the device bracket 50 is fixed. The first positioning structure 12 and the second positioning structure 701 can play a certain limiting role on the seal 70 so that the seal 70 is stably assembled between the device bracket 50 and the water squeezing device 200 .

In some embodiments, as shown in FIGS. 17 and 18 , the first positioning structure 12 is a positioning groove, the second positioning structure 701 is a positioning protrusion, and the positioning protrusion is inserted into the positioning groove.

In other embodiments, the first positioning structure 12 is a positioning protrusion, the second positioning structure 701 is a positioning groove, and the positioning protrusion is inserted into the positioning groove.

In some embodiments, the sealing member 70 may be made of soft rubber material. The soft rubber material may allow the sealing member 70 to be in an interference fit state when sealing the baffle 20 and the water squeezing device 200 , resulting in better sealing and waterproofing effects.

During specific implementation, the baffle 20 extends from the inner top wall 13 of the device bracket 50 toward the cleaning roller 10 and the sealing member 70 , and forms an abutment edge 21 above the cleaning roller 10 and a sealing edge above the sealing member 70 104. The sealing edge 104 is in sealing cooperation with the sealing member 70. In this way, the baffle 20 can play a better role in blocking the sewage on the cleaning drum 10 and the water squeezing device 200, and prevent the cleaning drum 10 and the water squeezing device 200 from being blocked. The sewage splashed out from both ends of the cleaning drum 10 and the two ends of the water squeezing device 200 respectively.

Please refer to Figures 13 and 15. Figure 15 is a structural perspective view of the water squeezing device 200 and the seal 70 shown in Figure 13 from another angle. In some embodiments, the water squeezing device 200 is provided with a third positioning structure 212. The sealing The component 70 is provided with a fourth positioning structure 702. The third positioning structure 212 and the fourth positioning structure 702 are positioned and matched to realize rapid positioning and assembly between the water squeezing device 200 and the seal 70, so that the water squeezing device 200 is relatively sealed. The installation angle of the water squeezing device 70 is fixed. At the same time, the mutually positioned third positioning structure 212 and the fourth positioning structure 702 can play a certain position limiting role for the water squeezing device 200 so that the water squeezing device 200 is stably assembled on the device bracket 50 .

In some embodiments, the third positioning structure 212 is a first step surface, and the first step surface is provided at the end of the water squeezing device 200. The fourth positioning structure 702 is a second step surface, and the second step surface is provided at the sealing end. At the end position of the member 70 , the first step surface and the second step surface fit each other, so that after the water squeezing device 200 is assembled with the seal 70 , the part of the water squeezing device 200 used to squeeze the cleaning roller 10 faces the cleaning roller 10 , that is, the squeezing part 210 of the water squeezing device 200 is directed toward the cleaning roller 10 , thereby realizing the rapid positioning and assembly of the water squeezing device 200 , and at the same time, playing a foolproof role to prevent the water squeezing device 200 from being Installation causes the pressing part 210 to face away from the cleaning roller 10 .

Specifically, the first step surface is provided at the end surface of the extrusion part 210, and the second step surface is provided at the side of the seal 70 close to the cleaning roller 10. When the water squeezing device 200 and the seal 70 are assembled, it is necessary to make The first step surface and the second step surface correspond to and cooperate with each other, so that the water squeezing device 200 and the seal 70 can be installed and matched, so that the water squeezing device 200 can be installed and matched. The squeezing part 210 of the device 200 is oriented toward the cleaning roller 10 when installed. At this time, the distance between the second step surfaces of the seals 70 corresponding to the two ends of the water squeezing device 200 is equal to the longitudinal length of the squeezing part 210 , thus preventing the water squeezing device 200 from being installed backwards by mistake during the installation process. It should be noted that when the water squeezing device 200 and the sealing member 70 are assembled, if the first step surface and the second step surface do not correspond to each other, the water squeezing device 200 with its squeezing portion 210 facing away from the cleaning roller 10 is at an angle consistent with the angle between the first step surface and the second step surface. When the sealing member 70 is mated, since the distance between the end surfaces of the sealing member 70 corresponding to the two ends of the water squeezing device 200 is smaller than the longitudinal length of the squeezing portion 210 , the water squeezing device 200 and the sealing member 70 cannot be mated. ,Install. The longitudinal length of the pressing portion 210 is parallel to the axial length of the cleaning roller 10 .

During assembly, the seals 70 can be first installed on both ends of the device bracket 50 through the cooperation of the positioning grooves and the positioning protrusions, and then, through the cooperation of the first step surface and the second step surface, the water squeezing device 200 The seals 70 on both ends of the bracket 50 are respectively installed. At the same time, the water squeezing device 200 is pressed toward the baffle 20 so that the seal 70 is pressed between the baffle 20 and the water squeezing device 200, thereby forming Interference fit.

Please refer to Figure 16. Figure 16 is a cross-sectional view along the E-E direction of the cleaning device 1 shown in Figure 10. In some embodiments, the cleaning device 1 also includes a resisting plate 80, which resists the water squeezing device 200. The top of the water squeezing device 200 can be pressed tightly against the cleaning roller 10 to resist the deformation of the water squeezing device 200 due to the force exerted by the cleaning roller 10 . The first direction D1 and the second direction D2 are opposite. In FIG. 15 , the second direction D2 is the counterclockwise direction.

Specifically, the resisting plate 80 extends from the inner top wall 13 of the device bracket 50 toward the first flow guide portion 220 and the second flow guide portion 220 , and the resisting plate 80 resists the first flow guide portion 220 and the second flow guide portion 220 . The flow part 220 can make the entire water squeezing device 200 always pressed against the cleaning roller 10 in the vertical and horizontal directions, preventing the force generated by the cleaning roller 10 on the water squeezing device 200 when the cleaning roller 10 rolls around its own axis. The water squeezing device 200 is forced to warp or bend horizontally.

In some embodiments, the resisting plate 80 resists the middle position of the water squeezing device 200 .

At the same time, this embodiment also provides a cleaning robot. The cleaning robot includes a robot body and the cleaning device 1 as mentioned above. The cleaning robot in the embodiment of the present disclosure also has the advantages of the above-mentioned cleaning device 1, which will not be described again here. . The cleaning device 1 is disposed on the side of the robot body facing the ground. A compression spring 630 is provided between the robot body and the cleaning device 1 . The compression spring 630 is configured to always press against the cleaning device 1 Apply a force toward the ground. A clean water pipe 610 and a sewage pipe 620 are provided on the main body of the robot. The clean water pipe 610 is connected to the water spray device, and the sewage pipe 620 is connected to the sewage recovery device.

Specifically, as shown in Figures 6 and 7, in this embodiment, the compression spring 630 is provided on the cover plate 510. The cover plate 510 is provided with a spring fixing piece. The compression spring 630 is removably installed on the cover plate 510 through the spring fixing piece. .

The spring fixing member includes a plurality of circumferential limiters 641. The plurality of circumferential limiters 641 are enclosed at the bottom of the cover plate 510 to form a spring installation slot. Limiting buckles are provided between adjacent circumferential limiters 641. 642, so that the compression spring 630 can be clamped in the spring installation groove.

During the working process of the cleaning robot described in this solution, the cleaning device 1 is hinged under the main body of the cleaning robot through the swing arm 520, and the pressure exerted by the compression spring 630 enables it to fully contact the ground. After starting work, clean water flows from the clean water pipe 610 flows into the water supply pipe and drips on the surface of the cleaning drum 10 through the drip hole 110 on the water supply pipe. The cleaning robot starts to walk and the cleaning drum 10 rotates driven by the drum motor 530. The cleaning drum 10 adsorbed with clean water rotates. Excess water is discharged through the water pressure rod in sequence, and the discharged water enters the water collection tank 300 through the first filter device 320. The cleaning roller 10 continues to rotate, and the excess water is squeezed out. When the cleaning roller 10 is still moist, it contacts the ground. During the cleaning process, the floor will continue to rotate after the dirt adheres to it. When the scraping tooth comb 400 is reached, the larger dirt will be blocked by the scraping tooth comb 400 and fall off. The smaller dirt will follow the cleaning roller. 10 continues to rotate to the water supply pipe through the scraper tooth comb 400. The water sprayed from the water supply pipe can moisten the cleaning roller 10. After that, when the cleaning roller 10 passes the water pressure rod again, the water pressure rod squeezes out the sewage. During the cleaning of the cleaning drum 10, the cleaned sewage enters the sewage tank 300 after being filtered by the first filtering device 320, and is pumped into the sewage tank through the sewage pump 330 in the sump 300 for recycling.

In the description of this article, it should be understood that the terms "upper", "lower", "left", "right" and other orientations or positional relationships are only for convenience of description and simplified operation, and do not indicate or imply what they refer to. The devices or elements must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the application. Furthermore, the term "first", "Second" is only used to differentiate in description and has no special meaning.

In the description of this specification, reference to the terms "an embodiment," "example," etc., means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. middle. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example.

In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. This description of the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole. , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be construed as limiting the protection scope of the present application in any way. Based on the explanations here, those skilled in the art can think of other specific implementations of the present application without any creative effort, and these methods will all fall within the protection scope of the present application.

Claims (31)

1. A cleaning device, characterized in that it includes a cleaning drum and a water spray device, a water squeezing device and a sewage recovery device arranged around the cleaning drum. In the rotation direction of the cleaning drum, the water spray device, The water squeezing device and the sewage recovery device are arranged in sequence. The sewage recovery device includes a sump, and the sump has a notch facing the cleaning drum.
2. A cleaning device according to claim 1, characterized in that a first filtering device is provided on the slot.
3. The cleaning device according to claim 1 or 2, characterized in that a sewage pump is provided in the water collection tank, and a second filtering device is provided at the water inlet of the sewage pump.
4. The cleaning device according to claim 3, wherein a cleaning port is provided on the water collection tank and adjacent to the second filtering device, and a rubber stopper is detachably provided at the cleaning port.
5. The cleaning device according to any one of claims 1 to 4, characterized in that the water spray device is a water supply pipe, and the axial direction of the water supply pipe is parallel to the axial direction of the cleaning drum, and the The water supply pipe is provided with several drip holes along its axis.
6. The cleaning device according to claim 5, wherein the water supply pipe is provided above the cleaning drum, and the drip hole is provided on a side of the water supply pipe facing the cleaning drum.
7. The cleaning device according to claim 5 or 6, characterized in that the drip holes are evenly distributed on the water supply pipe.
8. The cleaning device according to claim 5 or 6, characterized in that the dripping holes are non-uniformly distributed on the water supply pipe, and the arrangement density of the dripping holes in the middle position of the water supply pipe is greater than that at the near end of the water supply pipe. The arrangement density of the drip holes at the bottom position.
9. The cleaning device according to any one of claims 1 to 8, characterized in that the water squeezing device is a water pressure rod arranged to offset the cleaning drum along the axial direction of the cleaning drum.
10. The cleaning device according to claim 9, wherein the length of the water pressure rod in the axial direction of the cleaning drum is greater than or equal to the length of the cleaning drum.
11. The cleaning device according to claim 9, wherein the water pressure rod has a V-shaped structure or an arc-shaped structure, and gradually slopes from the middle to both ends toward the side away from the water spray device.
12. The cleaning device according to claim 9, wherein there are a plurality of water pressure rods, and the plurality of water pressure rods are arranged sequentially along the axial direction of the cleaning drum.
13. The cleaning device according to claim 9, characterized in that the water pressure rod is an aluminum rod, a plastic rod or a nylon rod.
14. The cleaning device according to claim 9, characterized in that the water pressure rod is fixedly arranged, or the water pressure rod is rotatably arranged relative to the cleaning roller.
15. The cleaning device according to any one of claims 1-4, characterized in that the water squeezing device is a water pressure scraper, The water pressure scraper has a pressing surface facing the cleaning drum, and the pressing surface is parallel to the axis of the cleaning drum.
16. The cleaning device according to any one of claims 1 to 4, further comprising a device bracket, the water spray device, the water squeezing device and the sewage recovery device are all installed on the device bracket , the cleaning device is installed on the cleaning robot through the device bracket.
17. The cleaning device according to claim 16, wherein the device bracket includes a cover plate and a swing arm extending to the same side at both ends of the cover plate, and the cleaning device is movably installed through the swing arm. On the cleaning robot.
18. The cleaning device according to any one of claims 1 to 4, characterized in that a scraping tooth comb is provided in the rotation direction of the cleaning drum and upstream of the water spray device.
19. The cleaning device according to any one of claims 1 to 4, further comprising a drum motor and a transmission device, the cleaning drum being rotatably driven by the drum motor.
20. The cleaning device according to any one of claims 1-19, further comprising:

    A device bracket, the cleaning roller is rotationally connected to the device bracket;

    Baffles are provided at both ends of the cleaning drum. The baffles are provided with abutting edges. The abutting edges of the baffles squeeze the cleaning drum and can block the sewage on the cleaning drum from flowing along the cleaning drum. The axial direction of the cleaning roller passes through the baffle;

    The water collection tank is located on one side of the cleaning drum;

    The water squeezing device is disposed between the baffles on both ends of the cleaning drum, and the water squeezing device squeezes the cleaning drum and extends toward the water collection tank;

    The water spray device is opposite to the cleaning roller, and the water spray device can spray cleaning liquid to the cleaning roller.
21. The cleaning device according to claim 20, wherein the baffle is perpendicular to the cleaning roller, the abutting edge is arc-shaped, and the arc shape is adapted to the circumferential outer side of the cleaning roller. .
22. The cleaning device according to claim 21, wherein the baffle is further provided with an introduction edge, one end of the introduction edge is tangent to one end of the abutment edge, and the other end of the introduction edge is away from the The axis of the cleaning drum extends in a downward direction.
23. The cleaning device according to claim 20, wherein the water squeezing device includes an extrusion part and a flow guide part;

    The pressing part presses the cleaning roller;

    The guide portion includes a first guide section and a second guide section, the first guide section extends from the extrusion section to above the water collection tank, and the second guide section extends from the One end of the first guide section away from the extrusion part extends downwardly into the water collecting tank.
24. The cleaning device according to claim 23, wherein the water squeezing device further includes a fixing part, the fixing part is fixedly connected to the squeezing part and/or the flow guide part, and the fixing part is configured to There are open slots;

    The device bracket is provided with a fixing hole, and the fixing hole is opposite to and connected with the opening slot.
25. The cleaning device according to claim 20, further comprising a sealing member provided at both ends of the water squeezing device, and the sealing member seals between the baffle and the water squeezing device. the gap between.
26. The cleaning device according to claim 25, wherein the device bracket is provided with a first positioning structure, the sealing member is provided with a second positioning structure, the first positioning structure and the second positioning structure are positioned Cooperate.
27. The cleaning device according to claim 25, wherein the water squeezing device is provided with a third positioning structure, the sealing member is provided with a fourth positioning structure, the third positioning structure and the fourth positioning structure Positioning and matching.
28. The cleaning device according to claim 20, further comprising a resisting plate resisting the top of the water squeezing device.
29. A cleaning robot, characterized by comprising the cleaning device according to any one of claims 1-28.
30. The cleaning robot according to claim 29, further comprising a clean water pipe and a sewage pipe, the clean water pipe is connected to the water spray device, and the sewage pipe is connected to the sewage recovery device.
31. The cleaning robot according to claim 30, characterized in that the cleaning robot includes a robot body, the cleaning device is disposed on a side of the robot body facing the ground, and is disposed between the robot body and the cleaning device. There is a compression spring arranged to always exert a force on the cleaning device towards the ground.