Water dust cyclone cleaning head and cleaning tool

Abstract

The utility model discloses a water dust circulation cleaning head and cleaning tool, this water dust circulation cleaning head includes: casing body and with water tank subassembly, cleaning roller, water guide portion and extruding roller of casing body connection, the water tank subassembly includes water tank body, water tank body is equipped with clean water chamber, and clean water chamber is used to hold clean water, clean water chamber with cleaning roller intercommunication, cleaning roller, extruding roller rotatable installation between the both side walls of casing body, and extruding roller with cleaning roller forms interference, is used for extruding the sewage of cleaning roller, casing body is equipped with sewage chamber in, and water guide portion is located the below of extruding roller, is used for the sewage diversion to sewage chamber. While realizing "water dust circulation", can reduce the working noise and power consumption of the cleaning head of cleaning tool in the prior art during operation, and make the cleaning tool have more light operation feeling.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a water-dust circulation cleaning head and cleaning tool. Background Technology

[0002] Early floor cleaning tools used by people included brooms, mops, and floor scrubbers, which relied primarily on manual operation. With technological advancements, the demands for floor cleaning tools gradually increased, leading to the emergence of vacuum cleaners. These electric vacuum cleaners use negative pressure to suck up debris and dust from the floor. Classified by cleaning methods and the flow path of small and large debris, this type of technology is generally categorized as air-dust circulation technology. However, due to the limitations of its working principle, vacuum cleaners cannot clean some firmly attached debris and stains. Therefore, a new type of floor scrubber, the "water-dust circulation" scrubber, appeared. This scrubber uses a motor to drive a cleaning drum to wipe the floor, and is also equipped with a water supply system and a water tank to clean the cleaning drum, thus achieving a perfect floor cleaning.

[0003] Chinese utility model patent CN212326298U discloses a cleaning tool, which includes a cleaning head. The cleaning head includes: a cleaning module comprising a roller and a squeezing roller positioned above the upper right of the roller, wherein the right side of the roller is the area to be cleaned, i.e., the squeezing roller is positioned above the surface of the area to be cleaned; the squeezing roller interferes with the roller, forming a water trough; a housing, including a side housing, has a first wastewater box; the roller and squeezing roller are respectively mounted on the side housing, the first wastewater box is connected to the water trough, and the first wastewater box contains a filter screen and a brush, the brush being used to clean debris from the surface of the filter screen. The bottom end of the squeezing roller interferes with the sponge layer of the roller, i.e., the bottom end of the squeezing roller squeezes the sponge layer, and the squeezing roller and roller form a water trough A. A roller brush is located between the roller and the waste box, used to clean debris from the surface of the roller. Through "water and dust circulation," the roller can achieve self-cleaning and can continuously scrub the surface of the area to be cleaned, resulting in good cleaning effect and high work efficiency.

[0004] Chinese invention patent CN119184557A discloses a stain removal device and cleaning tool. The stain removal device is mounted on the upper part of the cleaning head housing and elastically abuts against the cleaning roller for scrubbing the floor. It includes a squeezing roller, a guard roller plate, and a water-collecting strip. The cleaning roller is rotatably mounted on the front end of the cleaning head housing, and the cleaning roller and the squeezing roller can be detachably connected to the cleaning head housing. The squeezing roller abuts against the cleaning roller above and is interference-fitted with the cleaning roller. The squeezing roller is eccentrically positioned rearward relative to the cleaning roller. The guard roller plate and the water-collecting strip are located on the rear side of the squeezing roller, and the bottom end of the water-collecting strip abuts against the cleaning roller. The guard roller plate, the water-collecting strip, the squeezing roller, and the cleaning roller enclose a closed water-guiding space. After the squeezing roller squeezes the cleaning roller, the wastewater flowing out can be contained in the closed water-guiding space, preventing the wastewater from seeping into the ground through the water absorption of the sponge layer of the cleaning roller and reducing the cleaning efficiency. The cleaning tool includes a cleaning head housing, a brush, a cleaning roller, a drive motor, a transmission mechanism, and the stain removal device.

[0005] Chinese invention patent CN120167846A discloses a cleaning tool, including a mop head housing and a squeezing roller, a cleaning roller, and a stain removal component disposed within the mop head housing. The cleaning roller is rotatably located at the right end of the mop head housing. The squeezing roller abuts against the cleaning roller above it and is interference-fitted with the cleaning roller, with the squeezing roller offset to the left relative to the cleaning roller. The stain removal component is located to the left of the squeezing roller, with its bottom end abutting against the cleaning roller and its free end abutting against the squeezing roller. The stain removal component, squeezing roller, and cleaning roller together form a closed water tank space. After the squeezing roller squeezes the cleaning roller, the wastewater flowing out can be contained within the closed water tank space. When the cleaning roller is in an unsaturated state, a gap may form between the squeezing roller and the cleaning roller, and the seeping wastewater will flow down from the cleaning roller or into the closed water tank space under the action of gravity, preventing it from dripping onto the surface to be cleaned and thus affecting the cleanliness.

[0006] In the existing technologies described above, cleaning heads using the "water-dust circulation" technology all include a brush roller. Whether driven by a separate motor or by a transmission mechanism that drives the brush roller via a motor, this adds to the power consumption of the cleaning head, the overall power consumption of the cleaning tool, and the noise level during operation. There is an urgent need to find a technical solution that can reduce both noise and power consumption during cleaning. Furthermore, in existing technologies, the water tank assembly is typically inserted horizontally into the cleaning head of the floor scrubber or clipped vertically onto the scrubber's upright post, resulting in a still very heavy overall weight for the floor scrubber. This makes pushing and pulling the scrubber feel cumbersome for users, necessitating a technical solution that allows for a lighter and more nimble handling experience. Utility Model Content

[0007] In order to achieve "water and dust circulation" while reducing the working noise and power consumption of the cleaning head of the cleaning tool, and to make the cleaning tool have a lighter operating feel, this utility model provides a water and dust circulation cleaning head and cleaning tool.

[0008] In a first aspect, this utility model provides a water-dust circulation cleaning head, including: a housing body and a water tank assembly, a cleaning roller, a water guide part and a squeezing roller connected to the housing body; The water tank assembly includes a water tank body; The water tank body is provided with a clear water chamber, which is used to hold clear water; The clean water chamber is connected to the cleaning roller; The cleaning roller and the squeezing roller are rotatably mounted between the two side walls of the housing body. The squeezing roller interferes with the cleaning roller and is used to squeeze the wastewater from the cleaning roller. The housing body has a sewage chamber, and the water guiding part is located below the extrusion roller to guide sewage into the sewage chamber.

[0009] Optionally, the water-dust circulation cleaning head also includes a trash box and a detachable shovel assembly connected to the housing body; The detachable shovel assembly interferes with the cleaning roller, and is used to sweep the garbage on the surface of the cleaning roller into the garbage box.

[0010] Optionally, a water inlet is provided on the water tank body corresponding to the position of the clear water chamber; The water tank assembly also includes a flip-top assembly located at the water inlet.

[0011] Optionally, the housing body is provided with a clean water inlet and a clean water outlet that are interconnected, wherein the clean water outlet is provided corresponding to the cleaning roller; The water-dust circulation cleaning head also includes an adapter connected to the housing body; The adapter is connected to the clean water inlet and the clean water chamber respectively, and is used to sequentially introduce clean water from the clean water chamber to the clean water inlet and the clean water outlet to the cleaning roller.

[0012] Optionally, the water-dust circulation cleaning head further includes a drive motor, a drive gear, and a driven gear set; The drive motor is rotatably connected to the housing body; The cleaning roller is sleeved on the outside of the drive motor; One end of the drive motor is connected to the drive gear; One end of the driven gear set meshes with the driving gear, and the other end is connected to the extrusion roller.

[0013] Optionally, the housing body is provided with an overflow prevention plate connected to the water guiding part; The water guide section, the overflow prevention plate, the extrusion roller, and the cleaning roller together form a water tank space.

[0014] Optionally, in a cross section perpendicular to the axial direction of the cleaning roller, the housing body has a horizontal partition extending in the direction away from the cleaning roller in the direction below the water guide section, and a vertical wall extending upward at the other end of the horizontal partition. The two side walls, the overflow plate, the horizontal partition, and the vertical wall together enclose the sewage chamber. The overflow prevention plate is provided with permeable holes or permeable channels connecting the water tank space and the sewage chamber; A filter membrane is provided on the side of the permeable hole or permeable trough facing the sewage chamber.

[0015] Optionally, the water-dust circulation cleaning head also includes a top cover; The upper cover is positioned above the extrusion roller, and the side closest to the cleaning roller can be rotated open along an axis parallel to the cleaning roller.

[0016] Optionally, the lower surface of the upper cover extends downward parallel to the axial direction of the cleaning roller with an anti-overflow flange, which fits with the top of the anti-overflow plate to isolate the upper part of the water tank space from the sewage chamber.

[0017] Optionally, the lower surface of the upper cover is provided with an abutment portion; The abutting part abuts against the extrusion roller to clean the surface of the extrusion roller.

[0018] Optionally, the abutting portion abuts against the extrusion roller at a distance along the axial direction of the extrusion roller; The abutting part consists of multiple dot-shaped protrusions spaced apart.

[0019] Secondly, this utility model provides a cleaning tool, including a connecting rod assembly, a handle assembly, a hinge head assembly, and the water and dust circulation cleaning head described in the first aspect.

[0020] The beneficial effects of the above-mentioned technical solutions provided in the embodiments of this utility model include at least the following: This invention provides a water-dust circulation cleaning head. This embodiment eliminates the independent brush roller and its drive mechanism found in traditional cleaning heads, relying solely on the interaction between the cleaning roller and the squeezing roller to physically squeeze and recycle wastewater. This eliminates the additional power load and avoids the extra power consumption and noise problems caused by the brush roller drive, effectively reducing the power consumption and noise of the cleaning tool during operation. The cleaning roller simultaneously performs cleaning and wastewater adsorption functions, while the squeezing roller replaces the scraping function of the brush roller, resulting in a simpler structure.

[0021] By rationally designing the structure of the water and dust circulation cleaning head, the water tank assembly is directly connected to the cleaning head housing, and the clean water chamber and wastewater chamber are arranged laterally isolated inside the cleaning head, rather than being suspended on a pole or inserted at a high position. This layout lowers the center of gravity of the entire machine, reduces the overall height of the cleaning head and the longitudinal load, and compared with existing technologies, it can make the cleaning tool have a lighter operating feel and improve the user experience.

[0022] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0023] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 A perspective view of a cleaning tool with a cleaning head provided in this embodiment; Figure 2 Another perspective view of the cleaning tool with a cleaning head provided in this embodiment; Figure 3 A perspective view of the cleaning head provided in this embodiment; Figure 4 for Figure 1 The lower half of the sectional view along line A; Figure 5 for Figure 2 The lower half of the cross-sectional view along line B; Figure 6 for Figure 1 Sectional view along line C; Figure 7 A three-dimensional stepped planed view of a cleaning head with a hinged head assembly provided in this embodiment; Figure 8 An exploded view of the cleaning head provided in this embodiment; Figure 9 An exploded view of the cleaning head provided in this embodiment; Figure 10 An exploded view of the housing assembly provided in this embodiment; Figure 11 This is another exploded view of the housing assembly provided in this embodiment; Figure 12This is another exploded view of the shell cleaning head assembly provided in this embodiment; Figure 13 This is an exploded view of the water tank assembly and hinge head engagement assembly provided in this embodiment; Figure 14 This is an exploded view from another perspective of the water tank assembly and hinge head engagement assembly provided in this embodiment; Figure 15 This is an exploded view from another perspective of the water tank assembly and hinge head engagement assembly provided in this embodiment; Figure 16 An exploded view of the housing assembly provided in this embodiment; Figure 17 Another exploded view of the housing assembly provided in this embodiment; Explanation of reference numerals in the attached figures: 10. Cleaning head; 10A. Drive motor; 10A1. Drive gear; 10B. Cleaning roller; 110. Housing assembly; 120. Water tank assembly; 140. Garbage box; 110a. Housing body; 110a5. Clean water inlet; 110a6. Clean water outlet; 110a7. Water guide section; 110a8. Overflow plate; 110b. Detachable shovel assembly; 110c. Squeezing roller; 110d3. Driven gear set; 110g. Adapter; 120a. Water tank body; 120c. Flip cover assembly; 20. Connecting rod assembly; 30. Handle assembly; 40. Hinge head assembly; Q. Clean water chamber; M. Wastewater chamber; N. Dry waste chamber; S. Wastewater diversion area. Detailed Implementation

[0025] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Example 1 This embodiment provides a water-dust circulation cleaning head, which can be used for, for example Figure 1 and 2 The cleaning tools shown are described in the attached document. Figures 3-17 The cleaning head 10 includes a housing assembly 110, a water tank assembly 120, a cleaning roller 10B, a water guide 110a7, and a squeezing roller 110c. The housing assembly 110 includes a housing body 110a, and the water tank assembly 120, cleaning roller 10B, water guide 110a7, and squeezing roller 110c are all connected to the housing body 110a. The water tank assembly 120 includes a water tank body 120a, which has a clean water chamber Q for containing clean water and is connected to the cleaning roller 10B. The cleaning roller 10B and the squeezing roller 110c are rotatably mounted between the two side walls of the housing body 110a. The squeezing roller 110c interferes with the cleaning roller 10B to squeeze the wastewater from the cleaning roller 10B. The housing body 110a has a wastewater chamber M, and the water guide 110a7 is located below the squeezing roller 110c to guide the wastewater into the wastewater chamber M.

[0029] During use, the water-dust circulation cleaning process is as follows: the clean water chamber Q in the water tank body 120a contains clean water, and the clean water chamber Q is connected to the cleaning roller 10B. The clean water can flow from the clean water chamber Q to the cleaning roller 10B, keeping the cleaning roller 10B moist. During the cleaning process, the moist cleaning roller 10B wipes and cleans the ground. The wastewater collection process is as follows: the squeezing roller 110c interferes with the cleaning roller 10B. When the cleaning roller 10B rotates, the squeezing roller 110c squeezes the cleaning roller 10B, squeezing out the wastewater it has absorbed. The water guide part 110a7 is located below the squeezing roller 110c. Under the action of gravity, the squeezed wastewater is guided along the water guide part 110a7 to the wastewater chamber M of the water tank body 120a, realizing the collection of wastewater and thus completing the water-dust circulation cleaning process. The entire process does not require the additional configuration of a brush roller.

[0030] In existing technologies, the cleaning head 10 using the "water-dust circulation" technology is equipped with a brush roller. Whether driven by a separate motor or by a transmission mechanism via a cleaning roller drive motor 10A, this increases the power consumption of the cleaning head 10 and the overall power consumption of the cleaning tool, as well as increasing operating noise. This embodiment eliminates the independent brush roller and its drive mechanism found in traditional cleaning heads 10. It relies solely on the interaction between the cleaning roller 10B and the squeezing roller 110c to physically squeeze and recycle wastewater, eliminating the additional power load and avoiding the extra power consumption and noise problems caused by the brush roller drive. This effectively reduces the power consumption and noise of the cleaning tool during operation. The cleaning roller 10B simultaneously performs cleaning and wastewater adsorption functions, while the squeezing roller 110c replaces the scraping function of the brush roller, resulting in a simpler structure.

[0031] In existing technologies, the water tank assembly 120 is inserted horizontally into the cleaning head 10 or vertically clipped onto the upright, resulting in a heavy overall weight for the floor scrubber and a cumbersome feel when pushed or pulled by the user. This solution, through a rational design of the water and dust circulation cleaning head 10's structure, directly connects the water tank assembly 120 to the cleaning head 10's housing, and the clean water chamber Q and wastewater chamber M are horizontally isolated and arranged inside the cleaning head 10, rather than being suspended from the upright or inserted at a high position. This layout lowers the overall center of gravity, reduces the overall height of the cleaning head 10, and decreases the vertical load. Compared to existing technologies, this allows for a lighter and more nimble operating feel for the cleaning tool, improving the user experience.

[0032] In one specific embodiment, see [reference] Figure 4 and Figure 7 The water and dust circulation cleaning head 10 in this embodiment also includes a garbage box 140 and a detachable shovel assembly 110b connected to the housing body 110a; the detachable shovel assembly 110b interferes with the cleaning roller 10B and is used to sweep the garbage on the surface of the cleaning roller 10B into the garbage box 140.

[0033] During use, the cleaning roller 10B wipes and cleans the ground, absorbing dust, stains, and other debris. The detachable scraper assembly 110b interferes with the cleaning roller 10B. As the cleaning roller 10B rotates, the detachable scraper assembly 110b sweeps away debris such as hair, larger dust particles, and crumbs adhering to its surface. Guided by the detachable scraper assembly 110b, the swept debris is directed into the waste container 140, which is connected to the housing body 110a. The waste container 140 provides a relatively enclosed storage space for the debris, preventing it from scattering back onto the ground during cleaning and ensuring the continuity and effectiveness of the cleaning process.

[0034] This embodiment utilizes the interference between the detachable shovel assembly 110b and the cleaning roller 10B to effectively remove various types of garbage from the surface of the cleaning roller 10B. Combined with the sewage collection function, it achieves comprehensive cleaning of both dry and wet garbage on the ground, greatly improving the cleaning effect. It also promptly sweeps the garbage on the surface of the cleaning roller 10B into the garbage box 140, preventing garbage from falling back onto the cleaned ground during the cleaning process, thus preventing secondary pollution and ensuring the cleanliness of the cleaned area.

[0035] In one specific embodiment, see [reference] Figure 3 The water tank body 120a has a water inlet corresponding to the position of the clean water chamber Q. When it is necessary to add clean water to the water tank, the user can inject water into the clean water chamber Q through this water inlet to meet the clean water requirements of the cleaning roller 10B during the cleaning process. The water tank assembly 120 also includes a flip-top assembly 120c located at the water inlet. When water needs to be added, the user can manually open the flip-top assembly 120c to expose the water inlet, thereby smoothly injecting water into the clean water chamber Q; after water is added, the flip-top assembly 120c is operated again to close it, so that the water inlet is sealed.

[0036] The design of the water inlet and flip-top assembly 120c simplifies the water filling operation, allowing users to easily fill the water chamber Q without complicated steps, thus improving ease of use. The excellent sealing performance of the flip-top assembly 120c when closed effectively prevents water leakage during the use of the cleaning tool, avoiding damage to the internal electronic components and mechanical structure of the cleaning head 10 caused by water leakage, and also reducing potential safety hazards caused by slippery floors. The protective function of the flip-top assembly 120c on the water inlet prevents external dust and debris from entering the water chamber Q, ensuring the cleanliness of the water inside the chamber Q. This ensures that the cleaning roller 10B can use clean water for floor cleaning, improving cleaning effectiveness and extending the service life of components such as the cleaning roller 10B.

[0037] In one specific embodiment, see [reference] Figure 6 The housing body 110a has a clean water inlet 110a5 and a clean water outlet 110a6 that are interconnected, wherein the clean water outlet 110a6 is provided corresponding to the cleaning roller 10B. The housing body 110a is connected to an adapter 110g, which is connected to the clean water inlet 110a5 and the clean water chamber Q respectively, and is used to introduce clean water from the clean water chamber Q into the clean water inlet 110a5 and the clean water outlet 110a6 in sequence to the cleaning roller 10B to form a clean water channel.

[0038] The adapter 110g has a tight connection with the clean water chamber Q and the clean water inlet 110a5, which can effectively prevent water leakage during transmission. At the same time, the clean water channel inside the housing 110a is reasonably designed to avoid water leakage caused by pipe bends or loose connections, thus ensuring the stable operation of the cleaning system.

[0039] In one specific embodiment, see [reference] Figure 16 and Figure 17 The cleaning head 10 in this embodiment also includes a drive motor 10A, a drive gear 10A1, and a driven gear set 110d3. The drive motor 10A is rotatably connected to the housing body 110a. The cleaning roller 10B is sleeved on the outside of the drive motor 10A. One end of the drive motor 10A is connected to the drive gear 10A1. One end of the driven gear set 110d3 meshes with the drive gear 10A1, and the other end is connected to the squeeze roller 110c.

[0040] In one specific embodiment, see [reference] Figure 7 The cleaning head 10 in this embodiment also includes an overflow plate 110a8 connected to the water guiding part 110a7. The water guiding part 110a7, the overflow plate 110a8, the squeezing roller 110c, and the cleaning roller 10B enclose a water tank space. In a cross-section perpendicular to the axial direction of the cleaning roller 10B, the housing body 110a has a horizontal partition extending downward from the direction of the water guiding part 110a7 away from the cleaning roller 10B. The other end of the horizontal partition has an upward-extending vertical wall. The two side walls, the overflow plate 110a8, the horizontal partition, and the vertical wall together enclose a sewage chamber M. The overflow plate 110a8 is provided with a water-permeable hole or a water-permeable groove connecting the water tank space and the sewage chamber M. A filter membrane is provided on the side of the water-permeable hole or water-permeable groove facing the sewage chamber M. An overflow baffle 110a8 connects the housing body 110a and the water guiding section 110a7, forming a sewage guiding zone S between the overflow baffle 110a8 and the water guiding section 110a7. The overflow baffle 110a8 acts as a physical barrier, allowing sewage in the water guiding section 110a7 to flow into the sewage chamber M through the permeable holes. When the cleaning head 10 vibrates (e.g., when moving on uneven ground or encountering obstacles), the sewage in the sewage chamber M forms a water film on the surface of the filter membrane. This water film increases the resistance to reverse osmosis, making it difficult for sewage to reverse osmosis back into the sewage guiding zone S through the permeable holes. This ensures that sewage can only flow unidirectionally from the water guiding section 110a7 to the sewage chamber M, preventing secondary pollution of the water guiding section 110a7 and related cleaning components.

[0041] When the cleaning head 10 is subjected to vibration, the combination of the anti-overflow plate 110a8 and the filter membrane can stably prevent sewage backflow, ensuring that the cleaning work is not affected by vibration and always maintains a good cleaning state, thus enhancing the adaptability and stability of the cleaning tool under different working conditions.

[0042] In one specific embodiment, the cleaning head 10 further includes an upper cover, which is disposed above the squeezing roller 110c. The side of the upper cover near the cleaning roller 10B can be rotated open along an axis (i.e., the rotation axis) parallel to the cleaning roller 10B. When the upper cover is in the closed state, its inner surface forms a dynamic sealing structure with the cylindrical surface of the squeezing roller 110c, preventing sewage or impurities from overflowing. During the cleaning process, the squeezing roller 110c applies pressure to the cleaning object (such as fabric, floor, etc.) by rotating, while the closed state of the upper cover restricts the diffusion path of the squeezed sewage, causing it to enter the sewage chamber M along the water guide 110a7. When it is necessary to maintain or clean the squeezing roller 110c, the upper cover can be opened along the rotation axis to expose the complete working surface of the squeezing roller 110c for direct operation.

[0043] In one specific embodiment, the lower surface of the top cover extends downward parallel to the axial direction of the cleaning roller 10B with an overflow-preventing flange. The overflow-preventing flange fits with the top of the overflow-preventing plate 110a8, isolating the upper part of the water tank space from the sewage chamber M. When the cleaning roller 10B rotates, the liquid adhering to its surface splashes in all directions under the action of centrifugal force. The vertically extending portion of the overflow-preventing flange can intercept the horizontal movement path of the splashed sewage. At the same time, its lower surface and the fitting surface of the top of the overflow-preventing plate 110a8 form the first physical barrier. After being blocked by the overflow-preventing flange, the sewage flows back to the sewage guiding area S along the inner wall of the overflow-preventing plate 110a8, forming a one-way guiding path and improving the overflow prevention effect.

[0044] In one specific embodiment, the lower surface of the upper cover is provided with an abutment portion that abuts against the extrusion roller 110c to clean the surface of the extrusion roller 110c. When the upper cover is closed, the abutment portion forms line contact or surface contact with the surface of the extrusion roller 110c under its own elasticity or pre-tightening force. The shearing force generated by the relative motion peels off impurities (such as fibers, dirt, and residual liquid film) attached to the surface of the extrusion roller 110c, thereby improving cleaning efficiency.

[0045] In one specific embodiment, the abutting portion abuts against the extrusion roller 110c at intervals along the axial direction of the extrusion roller 110c. The abutting portion consists of a plurality of spaced-apart dot-shaped protrusions. These dot-shaped protrusions are distributed at intervals along the axial direction of the extrusion roller 110c, forming a discontinuous contact surface. When the extrusion roller 110c rotates, each protrusion independently applies a shearing force to a localized area of ​​the extrusion roller 110c surface, removing impurities through high-frequency, short-stroke scraping action. Compared to traditional surface contact cleaning, this effectively improves cleaning quality and efficiency.

[0046] Example 2 Based on the same inventive concept, see [reference] Figure 1 and Figure 2 This embodiment proposes a cleaning tool, including a connecting rod assembly 20, a handle assembly 30, a hinge head assembly 40, and a water and dust circulation cleaning head 10 as described in Embodiment 1.

[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A water-dust circulation cleaning head, characterized in that, include: The housing body and the water tank assembly, cleaning roller, water guide and squeezing roller connected to the housing body; The water tank assembly includes a water tank body; The water tank body is provided with a clear water chamber, which is used to hold clear water; The clean water chamber is connected to the cleaning roller; The cleaning roller and the squeezing roller are rotatably mounted between the two side walls of the housing body. The squeezing roller interferes with the cleaning roller and is used to squeeze the wastewater from the cleaning roller. The housing body has a sewage chamber, and the water guiding part is located below the extrusion roller to guide sewage into the sewage chamber.

2. The water-dust circulation cleaning head according to claim 1, characterized in that, It also includes a trash can and a detachable shovel assembly connected to the housing body; The detachable shovel assembly interferes with the cleaning roller, and is used to sweep the garbage on the surface of the cleaning roller into the garbage box.

3. The water-dust circulation cleaning head according to claim 1, characterized in that, The water tank body has a water inlet corresponding to the position of the clear water chamber; The water tank assembly also includes a flip-top assembly located at the water inlet.

4. The water-dust circulation cleaning head according to claim 1, characterized in that, The housing body is provided with a clean water inlet and a clean water outlet that are interconnected, wherein the clean water outlet is provided corresponding to the cleaning roller; The water-dust circulation cleaning head also includes an adapter connected to the housing body; The adapter is connected to the clean water inlet and the clean water chamber respectively, and is used to sequentially introduce clean water from the clean water chamber to the clean water inlet and the clean water outlet to the cleaning roller.

5. The water-dust circulation cleaning head according to claim 1, characterized in that, It also includes a drive motor, a driving gear, and a driven gear set; The drive motor is rotatably connected to the housing body; The cleaning roller is sleeved on the outside of the drive motor; One end of the drive motor is connected to the drive gear; One end of the driven gear set meshes with the driving gear, and the other end is connected to the extrusion roller.

6. The water-dust circulation cleaning head according to any one of claims 1-5, characterized in that, The housing body is provided with an overflow prevention plate connected to the water guiding part; The water guide section, the overflow prevention plate, the extrusion roller, and the cleaning roller together form a water tank space.

7. The water-dust circulation cleaning head according to claim 6, characterized in that, In a cross section perpendicular to the axial direction of the cleaning roller, the housing body has a horizontal partition extending in the direction away from the cleaning roller below the water guide section, and a vertical wall extending upward at the other end of the horizontal partition. The two side walls, the overflow plate, the horizontal partition, and the vertical wall together enclose the sewage chamber. The overflow prevention plate is provided with permeable holes or permeable channels connecting the water tank space and the sewage chamber; A filter membrane is provided on the side of the permeable hole or permeable trough facing the sewage chamber.

8. The water-dust circulation cleaning head according to claim 6, characterized in that, Also includes the top cover; The upper cover is positioned above the extrusion roller, and the side closest to the cleaning roller can be rotated open along an axis parallel to the cleaning roller.

9. The water-dust circulation cleaning head as described in claim 8, characterized in that, The lower surface of the upper cover extends downward parallel to the axial direction of the cleaning roller with an anti-overflow flange, which fits with the top of the anti-overflow plate to isolate the upper part of the water tank space from the sewage chamber.

10. The water-dust circulation cleaning head as described in claim 8, characterized in that, The lower surface of the upper cover is provided with an abutment portion; The abutting part abuts against the extrusion roller to clean the surface of the extrusion roller.

11. The water-dust circulation cleaning head according to claim 10, characterized in that, The abutting portion abuts against the extrusion roller at a distance along the axial direction of the extrusion roller; The abutting part consists of multiple dot-shaped protrusions spaced apart.

12. A cleaning tool, characterized in that, It includes a connecting rod assembly, a handle assembly, a hinge head assembly, and a water-dust circulation cleaning head as described in any one of claims 1-11.

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