Cleaning device and cleaning machine

Abstract

A cleaning device (1) and a cleaning machine (2). The cleaning device (1) comprises a housing (10), and a water squeezing structure (20) and a cleaning roller (30) that are mounted on the housing (10); the water squeezing structure (20), the housing (10) and the cleaning roller (30) define a water tank (100); the water squeezing structure (20) or the housing (10) is provided with a clean water port (201) and a dirty water port (202) that are communicated with the water tank (100); clean water in a clean water tank (60) can be transferred to the cleaning roller (30) through the clean water port (201); the clean water can become dirty water when the cleaning roller (30) abuts against a surface to be cleaned and rotates; the cleaning roller (30) works in conjunction with the water squeezing structure (20) to squeeze the dirty water from the cleaning roller (30); the dirty water is stored in the water tank (100); the clean water can also flush the cleaning roller (30) and the dirty water; and the dirty water is discharged into a dirty water tank (70) through the dirty water port (202). The surface to be cleaned is cleaned by means of the real-time self-cleaning principle of the cleaning roller (30), so that during cleaning, there is no need to first spray water to wet the surface to be cleaned, and there is no need to manually wash the cleaning roller (30) after cleaning is completed. While the cleaning roller (30) cleans the surface to be cleaned, the clean water cleans the cleaning roller (30), and the dirty water is returned to the dirty water tank (70) without dripping onto the floor.

Description

Cleaning equipment and cleaning machines

[0001] This application claims priority to Chinese patent applications filed on August 26, 2024, with application numbers 2024220810994 and 2024111771711, entitled “Cleaning Apparatus and Cleaning Machine”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of cleaning technology, specifically relating to cleaning devices and cleaning machines. Background Technology

[0003] In daily work and life, besides floors, other surfaces perpendicular to the ground, such as walls and windows, also need cleaning. Taking windows as an example, commonly used handheld window cleaning tools usually come with a cleaning cloth. Before use, the cloth and glass must be wetted with water. During cleaning, dirty water drips onto the floor or windowsill. After cleaning, the cleaning cloth needs to be manually washed, making the process cumbersome and inconvenient. The cloth also needs constant replacement or washing, which is time-consuming and labor-intensive. Summary of the Invention

[0004] In view of this, the first aspect of this application provides a cleaning device for cleaning a surface perpendicular to the ground. The cleaning device includes a housing, a water-squeezing structure and a cleaning roller mounted on the housing. The cleaning roller is rotatable about its axis. The water-squeezing structure, the housing, and the cleaning roller form a water tank. The water-squeezing structure or the housing is provided with a clean water outlet and a wastewater outlet communicating with the water tank. Clean water in the clean water tank can be transferred to the cleaning roller through the clean water outlet. When the cleaning roller rotates against the surface to be cleaned, the clean water can become wastewater. The cleaning roller cooperates with the water-squeezing structure to squeeze out the wastewater in the cleaning roller, so that the wastewater is placed in the water tank. At the same time, the clean water can also rinse the cleaning roller and the wastewater. The wastewater is discharged into the wastewater tank through the wastewater outlet.

[0005] The cleaning device provided in the first aspect of this application, through the cooperation of the housing, the water-squeezing structure, and the cleaning roller, allows purified water in the water tank to be sprayed onto the cleaning roller through the water-squeezing structure's water outlet, thus imbuing the cleaning roller with purified water. Subsequently, as the cleaning roller presses against the surface to be cleaned and rotates, it cleans the surface. During the cleaning process, the purified water is converted into wastewater. The rotating cleaning roller, in conjunction with the water-squeezing structure, forces the wastewater and contaminants adsorbed on the cleaning roller out of the roller and into a water tank. Simultaneously, a continuous supply of purified water continuously rinses the cleaning roller and wastewater, achieving self-cleaning of the cleaning roller. Finally, the wastewater is collected and returned to the wastewater tank through the wastewater outlet.

[0006] In summary, the cleaning device provided in this application uses a real-time self-cleaning principle of the cleaning roller to clean the surface to be cleaned. During the cleaning process, there is no need to pre-wet the surface with water, and after cleaning, there is no need to manually wash the cleaning roller. The cleaning roller is rinsed with clean water while cleaning the surface, and wastewater is collected in a wastewater tank without dripping onto the ground. It is convenient for users, provides excellent cleaning results, and does not cause secondary pollution.

[0007] The water-squeezing structure includes an extrusion member and a sealing member installed on the housing. The extrusion member extrudes the cleaning roller, and the sealing member abuts against the cleaning roller. The extrusion member, the sealing member, the housing, and the cleaning roller surround to form the water tank. When the cleaning roller rotates, it passes through the sealing member first and then the extrusion member. The extrusion member cooperates with the cleaning roller to squeeze the wastewater on the cleaning roller into the water tank.

[0008] The sealing element includes a connecting part and a sealing part. One end of the connecting part is connected to the housing, and the other end of the sealing part abuts against the cleaning roller. The clean water outlet is located at one end of the sealing element or along the axial direction of the cleaning roller, and the wastewater outlet is located at the other end of the sealing element or along the axial direction of the cleaning roller.

[0009] Along the axial direction of the cleaning roller, the clean water outlet and the wastewater outlet are located at opposite ends of the water tank.

[0010] The housing is disposed around a portion of the outer periphery of the cleaning roller, and the angle of the housing around the cleaning roller is no greater than 270°.

[0011] The number of cleaning rollers is one or more. When the number of cleaning rollers is multiple, the multiple cleaning rollers are arranged in a direction parallel to the axial direction of the cleaning rollers, or the cleaning rollers are arranged in the axial direction.

[0012] The cleaning roller and the housing can be an integral or separate structure.

[0013] The second aspect of this application provides a cleaning machine, which includes a body, a handle, a clean water tank, a wastewater tank, and a cleaning device as provided in the first aspect of this application. The cleaning device is installed at one end of the body, the handle is installed at the other end of the body, the clean water tank is connected to the clean water outlet, and the wastewater tank is connected to the wastewater outlet.

[0014] The cleaning machine provided in the second aspect of this application, by adopting the cleaning device provided in the first aspect of this application, uses a real-time self-cleaning principle of the cleaning roller to clean the surface to be cleaned. During the cleaning process, there is no need to first spray water to wet the surface, and after cleaning, there is no need to manually wash the cleaning roller. While the cleaning roller is cleaning the surface, it is simultaneously rinsed with clean water, and wastewater is collected in a wastewater tank without dripping onto the ground. It is convenient for users, provides good cleaning results, and does not cause secondary pollution.

[0015] The clean water tank and the wastewater tank are installed in the body of the machine or the housing of the cleaning device.

[0016] When the clean water tank and the wastewater tank are installed on the machine body, the clean water tank and the wastewater tank are closer to the cleaning device than the handle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0018] Figure 1 is a three-dimensional structural diagram of the cleaning device according to one embodiment of this application.

[0019] Figure 2 is a three-dimensional structural schematic diagram of the cleaning device shown in Figure 1 from another perspective.

[0020] Figure 3 is a three-dimensional cross-sectional schematic diagram of the cleaning device shown in Figure 1.

[0021] Figure 4 is a cross-sectional schematic diagram of the cleaning device shown in Figure 1.

[0022] Figure 5 is a partial enlarged cross-sectional schematic diagram of the cleaning device shown in Figure 4.

[0023] Figure 6 is a three-dimensional cross-sectional schematic diagram of the cleaning device shown in Figure 3 from another perspective.

[0024] Figure 7 is a side view of the cleaning device according to one embodiment of this application.

[0025] Figure 8 is a three-dimensional structural diagram of the cleaning machine according to one embodiment of this application.

[0026] Figure 9 is a cross-sectional schematic diagram of the cleaning machine shown in Figure 8.

[0027] Labeling Explanation: Cleaning Device-1, Cleaning Machine-2, Housing-10, Water Tank-100, Water Squeezing Structure-20, Clean Water Outlet-201, Waste Water Outlet-202, Extrusion Part-21, Seal Part-22, Connecting Part-221, Sealing Part-222, First Part-2221, Second Part-2222, Cleaning Roller-30, Machine Body-40, Handle-50, Clean Water Tank-60, Clean Water Pipe-61, Waste Water Tank-70, Waste Water Pipe-71. Detailed Implementation

[0028] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] Furthermore, if the embodiments of the present invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text is to include three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B.

[0030] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0031] In view of this, and to solve the above problems, this application provides a cleaning device. Please refer to Figures 1-4 together. Figure 1 is a perspective structural diagram of the cleaning device according to one embodiment of this application. Figure 2 is a perspective structural diagram of the cleaning device shown in Figure 1 from another perspective. Figure 3 is a perspective cross-sectional diagram of the cleaning device shown in Figure 1. Figure 4 is a cross-sectional diagram of the cleaning device shown in Figure 1.

[0032] The cleaning device 1 provided in this embodiment is used to clean a surface perpendicular to the ground. The cleaning device 1 includes a housing 10, a water-squeezing structure 20 and a cleaning roller 30 installed on the housing 10. The cleaning roller 30 can rotate around its axis. The water-squeezing structure 20, the housing 10 and the cleaning roller 30 surround to form a water tank 100. The water-squeezing structure 20 or the housing 10 is provided with a clean water outlet 201 and a wastewater outlet 202 communicating with the water tank 100. Clean water in the clean water tank can be transmitted to the cleaning roller 30 through the clean water outlet 201. When the cleaning roller 30 rotates against the surface to be cleaned, the clean water can become wastewater. The cleaning roller 30 and the water-squeezing structure 20 cooperate to squeeze out the wastewater in the cleaning roller 30, so that the wastewater is placed in the water tank 100. At the same time, the clean water can also rinse the cleaning roller 30 and the wastewater. The wastewater is discharged into the wastewater tank through the wastewater outlet 202.

[0033] The cleaning device 1 provided in this embodiment is mainly used to clean surfaces that are perpendicular to the ground, such as walls, glass, tiles, and windows. This embodiment and the following text only use windows as the surface to be cleaned for illustrative purposes. In this case, the cleaning device 1 can also be called a window cleaning device or a cleaning head.

[0034] The cleaning device 1 mainly includes a housing 10, a cleaning roller 30, and a dewatering structure 20. The housing 10 is mainly used to install components such as the cleaning roller 30 and the dewatering structure 20, thereby providing a mounting base for the components in the cleaning device 1 and protecting each component. Furthermore, the housing 10 can be connected to other components such as the machine body 40 to form a complete machine.

[0035] The cleaning roller 30 is a component used to clean the surface to be cleaned and is a main component of the cleaning device 1. The cleaning roller 30 can rotate around its axis and can also rotate on its own axis (rotating in direction D in Figure 4). During rotation, it can absorb dirt from the surface to be cleaned, thereby achieving cleaning. Optionally, in one embodiment, the cleaning roller 30 itself does not rotate; it can be driven to rotate by the user's pushing force. In other embodiments, the cleaning roller 30 itself can rotate on its own under the drive of a motor or other components, and when the user holds the cleaning roller 30 against the surface to be cleaned, the cleaning roller 30 can automatically rotate to clean the surface.

[0036] The squeezing structure 20 is a component that squeezes the cleaning roller 30 and expels wastewater from it. Optionally, the squeezing structure 20 and the housing 10 can be an integral or separate structure; this embodiment is illustrated only if the squeezing structure 20 and the housing 10 are an integral structure. The squeezing structure 20, the housing 10, and the cleaning roller 30 can be arranged to form a water tank 100, where the wastewater squeezed out from the cleaning roller 30 can be stored, and even some clean water can be stored. The squeezing structure 20 or the housing 10 is provided with a clean water inlet 201 and a wastewater inlet 202 communicating with the water tank 100. The clean water inlet 201 is used to allow clean water from the clean water tank to enter, and the wastewater inlet 202 is used to discharge wastewater into the wastewater tank. This embodiment is illustrated only if the squeezing structure 20 is provided with a clean water inlet 201 and a wastewater inlet 202 communicating with the water tank 100. Optionally, the dewatering structure 20 is located on the side of the cleaning roller 30 away from the surface to be cleaned, that is, the dewatering structure 20 is located above the cleaning roller 30.

[0037] According to relevant technologies, when using handheld window cleaning tools with attached cloths, the cloth and glass must be wetted with water before cleaning. During cleaning, dirty water drips onto the floor or windowsill, and the cloth must be hand-washed afterward. This process is cumbersome and inconvenient, requiring frequent cloth replacement and washing, which is time-consuming and labor-intensive. While handheld vacuum cleaners also exist, they are noisy, and the soft rubber squeegee creates significant resistance when scraping the window surface, resulting in a poor user experience.

[0038] The cleaning device 1 provided in this embodiment, through the cooperation of the housing 10, the water squeezing structure 20, and the cleaning roller 30, allows clean water in the clean water tank to be sprayed onto the cleaning roller 30 through the clean water outlet 201 of the water squeezing structure 20, thus making the cleaning roller 30 self-adhesive to clean water. Subsequently, when the cleaning roller 30 presses against the surface to be cleaned and rotates, it cleans the surface. During the cleaning process, the clean water turns into wastewater. The rotating cleaning roller 30 then cooperates with the water squeezing structure 20 to squeeze out the wastewater and dirt adsorbed on the cleaning roller 30 and place it in the water tank 100. Simultaneously, a continuous supply of clean water continuously rinses the cleaning roller 30 and the wastewater, achieving self-cleaning of the cleaning roller 30. Finally, the wastewater is collected and returned to the wastewater tank through the wastewater outlet 202.

[0039] In summary, the cleaning device 1 provided in this embodiment uses the real-time self-cleaning principle of the cleaning roller 30 to clean the window surface awaiting cleaning. In other words, this embodiment applies the real-time self-cleaning principle of the cleaning roller 30 to window cleaning. During the cleaning process, there is no need to first wet the surface to be cleaned with water, and after cleaning, there is no need to manually wash the cleaning roller 30. While the cleaning roller 30 cleans the surface, it is simultaneously rinsed with clean water, and wastewater is collected in a wastewater tank without dripping onto the ground. It is convenient for users, provides good cleaning results, and avoids secondary pollution.

[0040] Please refer to Figures 4 and 5 together. Figure 5 is a partially enlarged cross-sectional view of the cleaning device shown in Figure 4. In this embodiment, the water squeezing structure 20 includes a squeezing member 21 and a sealing member 22 installed on the housing 10. The squeezing member 21 squeezes the cleaning roller 30, and the sealing member 22 abuts against the cleaning roller 30. The squeezing member 21, the sealing member 22, the housing 10, and the cleaning roller 30 surround and form the water tank 100. When the cleaning roller 30 rotates, the cleaning roller 30 passes through the sealing member 22 and then through the squeezing member 21. The squeezing member 21 cooperates with the cleaning roller 30 to squeeze the sewage on the cleaning roller 30 into the water tank 100.

[0041] The water-squeezing structure 20 mainly includes an extrusion component 21 and a sealing component 22. Both the extrusion component 21 and the sealing component 22 are mounted on the housing 10. The extrusion component 21, the sealing component 22 and the housing 10 can be an integral structure or a separate structure. This embodiment is only illustrated by taking the extrusion component 21, the sealing component 22 and the housing 10 as an integral structure.

[0042] The extrusion member 21 is mainly used to extrude the cleaning roller 30. In other words, the extrusion member 21 not only holds the cleaning roller 30, but also presses into the interior of the cleaning roller 30, creating a groove on its surface. The end of the extrusion member 21 is located within this groove. This can also be understood as an interference fit between the extrusion member 21 and the cleaning roller 30. This allows the extrusion member 21 to extrude the cleaning roller 30, thereby squeezing the wastewater out of the cleaning roller 30 and placing it inside the water tank 100. The sealing member 22 merely holds or slightly extrudes the cleaning roller 30, thus sealing the water tank 100 and preventing clean or wastewater from flowing out. It also prevents the sealing member 22 from squeezing out the wastewater from the cleaning roller 30, preventing wastewater from entering the water tank 100 and flowing outside the cleaning device 1.

[0043] Thus, the extrusion member 21, the seal member 22, the housing 10, and the cleaning roller 30 can be arranged to form the aforementioned water tank 100. When the cleaning roller 30 rotates, as shown in Figure 4, when the cleaning roller 30 rotates counterclockwise, it first passes the seal member 22 and then the extrusion member 21. Although the seal member 22 engages with the cleaning roller 30 first, it only serves a sealing function and does not engage with the cleaning roller 30 to squeeze out the wastewater. Only when the extrusion member 21 engages with the cleaning roller 30 will the wastewater be squeezed out. And, in accordance with the rotation direction of the cleaning roller 30, the squeezed-out wastewater can be placed inside the water tank 100 and then discharged into the wastewater tank through the wastewater outlet 202. In summary, the engagement of the extrusion member 21 and the seal member 22 not only forms a sealed water tank 100 space but also squeezes the wastewater from the cleaning roller 30 into the water tank 100, achieving self-cleaning of the cleaning roller 30.

[0044] Please refer to Figures 5 and 6. Figure 6 is a three-dimensional cross-sectional view of the cleaning device shown in Figure 3 from another perspective. In this embodiment, the sealing element 22 includes a connecting part 221 and a sealing part 222. One end of the connecting part 221 is connected to the housing 10, and the other end of the sealing part 222 abuts against the cleaning roller 30. The clean water outlet 201 is located at one end of the sealing element 22 or along the axial direction of the cleaning roller 30, and the wastewater outlet 202 is located at the other end of the sealing element 22 or along the axial direction of the cleaning roller 30.

[0045] The sealing element 22 mainly includes a connecting portion 221 and a sealing portion 222. The connecting portion 221 is mainly used to connect the sealing portion 222, and the sealing portion 222 is mainly used to abut against the cleaning roller 30 to seal the water tank 100. Optionally, the connecting portion 221 and the sealing portion 222 can be an integral structure or a separate structure. This embodiment is only illustrated with the connecting portion 221 and the sealing portion 222 as an integral structure. One end of the connecting portion 221 is used to connect to the housing 10, and the other end of the connecting portion 221 is used to bend and connect to one end of the sealing portion 222. The other end of the sealing portion 222 is used to abut against the cleaning roller 30.

[0046] Specifically, the water inlet 201 can be located at any position on the sealing member 22. For example, the water inlet 201 can be located at the connecting portion 221 and / or the sealing portion 222. This embodiment is only illustrated by illustratively showing the water inlet 201 located at the connecting portion 221. Alternatively, in addition to the connecting portion 221 and the sealing portion 222, the sealing member 22 may also have other components, such as sealant, at opposite ends along the axial direction of the cleaning roller 30, thereby further enclosing the water tank 100. In this case, the water inlet 201 can also be located at one end of the sealing member 22 along the axial direction of the cleaning roller 30.

[0047] The wastewater outlet 202 can also be located at any position on the sealing member 22. For example, the wastewater outlet 202 can be located at the connecting portion 221 and / or the sealing portion 222. This embodiment is only illustrated with the wastewater outlet 202 located at the sealing portion 222. Alternatively, in addition to the connecting portion 221 and the sealing portion 222, the sealing member 22 may have other components, such as sealant, at opposite ends along the axial direction of the cleaning roller 30, thereby further enclosing the water tank 100. In this case, the wastewater outlet 202 can also be located at the other end of the sealing member 22 along the axial direction of the cleaning roller 30.

[0048] In this embodiment, the sealing part 222 includes a first part 2221 and a second part 2222. One end of the first part 2221 is bent and connected to the other end of the connecting part 221, and the other end of the first part 2221 is bent and connected to one end of the second part 2222. The other end of the second part 2222 abuts against the cleaning roller 30. The angle between the first part 2221 and the connecting part 221 is an acute angle, and the angle between the first part 2221 and the second part 2222 is an obtuse angle. The first part 2221 and the second part 2222 of the sealing part 222 have an inverted V-shaped structure. The first part 2221 is used to prevent sewage from overflowing, while the second part 2222 facilitates the flow of clean water to the cleaning roller 30.

[0049] Optionally, along the extension direction of the water tank 100, i.e., along the axial direction of the cleaning roller 30, from both ends of the water tank 100 to the middle of the water tank 100, the size of the first part 2221 gradually increases, and the size of the second part 2222 gradually decreases. In other words, the size of the first part 2221 is the largest in the middle region of the water tank 100, and the size of the second part 2222 is the largest in the regions at both ends of the water tank 100. This facilitates the entry of wastewater from the middle region of the water tank 100 into the first part 2221, thereby better containing the wastewater and directing it to the wastewater outlet 202. At the same time, the clean water outlet 201 located at the edge allows clean water to flow more effectively from the larger second part 2222 onto the cleaning roller 30, thus allowing clean water to be absorbed onto the cleaning roller 30.

[0050] Please refer again to Figures 3 and 6. In this embodiment, along the axial direction of the cleaning roller 30, the clean water outlet 201 and the wastewater outlet 202 are located at opposite ends of the water tank 100.

[0051] In this embodiment, the clean water outlet 201 and the wastewater outlet 202 are not located on the same side, but rather along the axial direction of the cleaning roller 30, that is, along the length direction of the cleaning roller 30, the clean water outlet 201 and the wastewater outlet 202 are located at opposite ends of the water tank 100, so that the clean water outlet 201 and the wastewater outlet 202 are respectively located at opposite ends of the cleaning roller 30. In other words, one of the clean water outlet 201 and the wastewater outlet 202 is located at the left end of the water tank 100, and the other is located at the right end of the water tank 100. Separating the clean water outlet 201 and the wastewater outlet 202 allows some of the clean water to fall back into the water tank 100 while being sprayed onto the cleaning roller 30 through the clean water outlet 201. At this time, the clean water at one end will flow towards the sewage outlet 202 at the other end. During this process, the clean water will also push the sewage towards the sewage outlet 202 at the other end, so that the sewage can be discharged from the sewage outlet 202 better. In addition, the clean water will continuously wash the various walls inside the water tank 100 to clean the water tank 100.

[0052] Please refer to Figure 4 again. In this embodiment, the housing 10 is disposed around a portion of the outer periphery of the cleaning roller 30, and the angle of the housing 10 around the cleaning roller 30 is no greater than 270°.

[0053] When the cleaning device 1 is in operation, since the cleaning roller 30 does not need to contact the surface to be cleaned entirely, but only a portion of it, this embodiment can be configured to only surround a portion of the outer periphery of the cleaning roller 30, thereby exposing the remaining outer periphery of the cleaning roller 30 for cleaning the surface to be cleaned. Furthermore, this embodiment allows the angle of the housing 10 around the cleaning roller 30 to be no greater than 270°; in other words, the housing 10 surrounds less than half of the outer periphery of the cleaning roller 30, ensuring that at least half of the outer periphery of the cleaning roller 30 is exposed, thus increasing the exposed area of ​​the cleaning roller 30. When using the cleaning device 1 to clean surfaces higher or lower than the user, the user can maintain contact between the cleaning roller 30 and the surface to be cleaned, avoiding contact between the housing 10 and the surface to be cleaned.

[0054] Please refer to Figure 7, which is a side view of the cleaning device according to an embodiment of this application. In this embodiment, the number of cleaning rollers 30 is one or more. When the number of cleaning rollers 30 is multiple, the multiple cleaning rollers 30 are arranged in a direction parallel to the axial direction of the cleaning rollers 30, or the cleaning rollers 30 are arranged in the axial direction.

[0055] In this embodiment, the number of cleaning rollers 30 can be one or more. When the number of cleaning rollers 30 is multiple, in one embodiment, the multiple cleaning rollers 30 can be arranged in a direction parallel to the axial direction of the cleaning rollers 30; in other words, the multiple cleaning rollers 30 can be arranged horizontally. This embodiment only illustrates one cleaning roller 30. In other embodiments, the multiple cleaning rollers 30 can be arranged in any direction, such as in a direction perpendicular to the axial direction of the cleaning rollers 30; in other words, the multiple cleaning rollers 30 can be arranged vertically or horizontally. In this case, each cleaning roller 30 can be provided with a separate water-squeezing structure 20 for water squeezing. Alternatively, the multiple cleaning rollers 30 can be arranged arbitrarily in axial directions intersecting the cleaning rollers 30, such as inclined or staggered arrangements, all of which are within the scope of protection of this application.

[0056] In this embodiment, the cleaning roller 30 and the housing 10 are either an integral or separate structure. In one embodiment, the cleaning roller 30 can be detached from the housing 10, in which case the cleaning roller 30 and the housing 10 are separate structures, facilitating the assembly and disassembly of the cleaning roller 30. Users can clean or replace the cleaning roller 30 separately. In another embodiment, the cleaning roller 30 may not be detachable from the housing 10, in which case the cleaning roller 30 and the housing 10 are an integral structure. This reduces the number of components in the cleaning device 1 and facilitates its assembly.

[0057] Please refer to Figures 8 and 9. Figure 8 is a three-dimensional structural diagram of the cleaning machine according to one embodiment of this application. Figure 9 is a cross-sectional diagram of the cleaning machine shown in Figure 8. This embodiment provides a cleaning machine 2, which includes a body 40, a handle 50, a clean water tank 60, a wastewater tank 70, and a cleaning device 1 as provided in the above embodiment of this application. The cleaning device 1 is installed at one end of the body 40, the handle 50 is installed at the other end of the body 40, the clean water tank 60 is connected to the clean water outlet 201, and the wastewater tank 70 is connected to the wastewater outlet 202.

[0058] The cleaning machine 2 provided in this embodiment is mainly used for cleaning surfaces perpendicular to the ground, such as walls, glass, tiles, and windows. This embodiment and the following description only use a window as the surface to be cleaned for illustrative purposes; in this case, the cleaning machine 2 can also be called a window cleaning machine. The cleaning device 1 and handle 50 of the cleaning machine 2 are respectively installed at opposite ends of the machine body 40. The user can hold the handle 50 to place the cleaning device 1 on the window to clean it. The clean water tank 60 is connected to the clean water outlet 201 through the clean water pipe 61, and the wastewater tank 70 is connected to the wastewater outlet 202 through the wastewater pipe 71. The positions of the clean water tank 60 and the wastewater tank 70 are not limited in this embodiment.

[0059] Please refer to Figures 3-4 again. With the above coordination, when the user uses the cleaning machine 2 to clean the window, the cleaning roller 30 rotates counterclockwise. The clean water in the clean water tank 60 is sprayed from one side of the cleaning device 1 onto the cleaning roller 30 to perform self-cleaning of the cleaning roller 30. The rotating cleaning roller 30 cleans the dirt on the window surface. The squeezing structure 20 squeezes the cleaning roller 30, squeezing out the dirt and sewage adsorbed on the cleaning roller 30 and flowing into the water tank 100. Then, it is recycled into the sewage tank 70 through the sewage outlet 202 on the other side of the water tank 100.

[0060] The cleaning machine 2 provided in this embodiment, by adopting the cleaning device 1 provided in the above-described embodiments of this application, uses the real-time self-cleaning principle of the cleaning roller 30 to clean the surface to be cleaned. During the cleaning process, there is no need to first spray water to wet the surface, and after cleaning, there is no need to manually wash the cleaning roller 30. While the cleaning roller 30 is cleaning the surface, it is simultaneously rinsed with clean water, and wastewater is collected in the wastewater tank 70 without dripping onto the ground. It is convenient for users to use, provides good cleaning results, and avoids secondary pollution.

[0061] In this embodiment, the clean water tank 60 and the wastewater tank 70 are mounted on the main body 40 or the housing 10 of the cleaning device 1. In one embodiment, the clean water tank 60 and the wastewater tank 70 can be mounted on the main body 40, thereby facilitating their assembly. This embodiment is only illustrated by showing the clean water tank 60 and the wastewater tank 70 mounted on the main body 40. In another embodiment, the clean water tank 60 and the wastewater tank 70 can be mounted on the housing 10 of the cleaning device 1, thereby bringing the clean water tank 60 and the wastewater tank 70 closer to the clean water inlet 201 and the wastewater inlet 202, facilitating the entry of clean water and the discharge of wastewater. For example, the clean water tank 60 can be mounted on the top of the housing 10, and the wastewater tank 70 can be mounted on the bottom of the housing 10.

[0062] In this embodiment, when the clean water tank 60 and the wastewater tank 70 are installed on the body 40, the clean water tank 60 and the wastewater tank 70 are closer to the cleaning device 1 than the handle 50. In other words, this embodiment allows the clean water tank 60 and the wastewater tank 70 to be positioned closer to the cleaning device 1 on the body 40, thereby bringing them closer to the clean water inlet 201 and the wastewater inlet 202, facilitating the entry of clean water and the discharge of wastewater.

Claims

1. A cleaning device, characterized in that, The cleaning device is used to clean a surface perpendicular to the ground. The cleaning device includes a housing, a water-squeezing structure and a cleaning roller mounted on the housing. The cleaning roller can rotate around its axis. The water-squeezing structure, the housing, and the cleaning roller form a water tank. The water-squeezing structure or the housing is provided with a clean water outlet and a wastewater outlet communicating with the water tank. Clean water in the clean water tank can be transferred to the cleaning roller through the clean water outlet. When the cleaning roller rotates against the surface to be cleaned, the clean water can turn into wastewater. The cleaning roller and the water-squeezing structure cooperate to squeeze out the wastewater in the cleaning roller, so that the wastewater is placed in the water tank. At the same time, the clean water can also rinse the cleaning roller and the wastewater. The wastewater is discharged into the wastewater tank through the wastewater outlet.

2. The cleaning device as claimed in claim 1, characterized in that, The water-squeezing structure includes an extrusion member and a sealing member installed on the housing. The extrusion member extrudes the cleaning roller, and the sealing member abuts against the cleaning roller. The extrusion member, the sealing member, the housing, and the cleaning roller surround to form the water tank. When the cleaning roller rotates, the cleaning roller passes through the sealing member first and then through the extrusion member. The extrusion member cooperates with the cleaning roller to squeeze the sewage on the cleaning roller into the water tank.

3. The cleaning device as described in claim 2, characterized in that, The sealing element includes a connecting part and a sealing part. One end of the connecting part is connected to the housing, and the other end of the sealing part abuts against the cleaning roller. The clean water outlet is located at one end of the sealing element or along the axial direction of the cleaning roller, and the wastewater outlet is located at the other end of the sealing element or along the axial direction of the cleaning roller.

4. The cleaning device as claimed in claim 1, characterized in that, Along the axial direction of the cleaning roller, the clean water outlet and the wastewater outlet are located at opposite ends of the water tank.

5. The cleaning device as claimed in claim 1, characterized in that, The housing is disposed around a portion of the outer periphery of the cleaning roller, and the angle of the housing around the cleaning roller is no greater than 270°.

6. The cleaning device as claimed in claim 1, characterized in that, The number of cleaning rollers can be one or more. When the number of cleaning rollers is multiple, the multiple cleaning rollers are arranged in a direction parallel to the axial direction of the cleaning rollers, or the cleaning rollers are arranged in the axial direction.

7. The cleaning device as claimed in claim 1, characterized in that, The cleaning roller and the housing can be an integral or separate structure.

8. A cleaning machine, characterized in that, The cleaning machine includes a body, a handle, a clean water tank, a wastewater tank, and a cleaning device as described in any one of claims 1-7. The cleaning device is installed at one end of the body, the handle is installed at the other end of the body, the clean water tank is connected to the clean water outlet, and the wastewater tank is connected to the wastewater outlet.

9. The cleaning machine as described in claim 8, characterized in that, The clean water tank and the wastewater tank are installed on the body of the machine or the housing of the cleaning device.

10. The cleaning machine as described in claim 9, characterized in that, When the clean water tank and the wastewater tank are installed on the body, the clean water tank and the wastewater tank are closer to the cleaning device than the handle.

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