Water tank for floor cleaning tool and floor cleaning tool

Abstract

The invention provides a water tank for a ground cleaning tool and the ground cleaning tool. The water tank comprises a water storage tank, a water guide tank and a scraping strip. The water storage tank is used for storing water and is provided with a first water inlet, and a filtering assembly is detachably mounted at the first water inlet; the water chute is provided with a second water inlet, a water outlet and an inclined bottom surface, and the water outlet is connected with the water storage tank; the scraping strip extends in the axial direction of the roller, and one end of the scraping strip is tightly attached to the surface of the roller so that water extruded from the roller can be drained to the water guiding groove and then further flows into the water storage groove. One end of the scraping strip partially extrudes the surface of the roller; sewage extruded from the roller and water after washing the roller flow into the water storage tank through the water guide groove, and the scraping strip is arranged at a first water inlet of the water guide groove and used for guiding the water extruded from the roller into the water guide groove. According to the floor cleaning tool, water is recycled, self-cleaning of the roller can be achieved, the structure is simple, and almost no noise is generated during use.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202010073672.0 entitled "A Floor Cleaning Tool", the contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of cleaning equipment technology, specifically, it relates to a water tank and a floor cleaning tool. Background Technology

[0003] With the development of modern technology, there are now many different floor cleaning tools available, including brooms, mops, floor scrubbers, and vacuum cleaners. Vacuum cleaners are a very common floor cleaning tool, but they are very noisy, making people feel uncomfortable. Moreover, their method of cleaning up debris is simply to suck it into a dustbin.

[0004] Brooms, mops, and floor scrubbers belong to the category of sweeping and mopping cleaning tools. They generally have a fixed cleaning section, and their cleaning ability depends on the dirt-removing and suction capabilities of that section. Since this cleaning section becomes contaminated once it comes into contact with a dirty floor, its cleaning ability gradually weakens during subsequent cleaning, especially when sweeping large areas continuously, making thorough cleaning impossible. Therefore, these cleaning products must be rinsed frequently, which is quite troublesome.

[0005] For Chinese consumers, sweeping and mopping are both essential for cleaning floors; neither can achieve a thorough clean alone. However, existing sweeping and mopping robots either require frequent washing or have complex structures and high costs, making them inaccessible to ordinary consumers.

[0006] Moreover, existing floor cleaning tools are either only effective at cleaning dry waste (brooms or vacuum cleaners, etc.) or liquid waste (mops, floor scrubbers, etc.). They are either extremely ineffective at cleaning mixed dry and wet waste, especially sticky waste (such as syrup, ketchup, etc.), or extremely laborious (for example, using a rag, which requires multiple rinses), leaving them practically helpless. Summary of the Invention

[0007] To address one of the problems of the prior art, this application provides a water tank for a floor cleaning tool, mounted on a housing, the housing having a rotatable roller, the water tank comprising:

[0008] A water storage tank for storing water is provided with a first water inlet, and a filter assembly is detachably installed at the first water inlet.

[0009] The water guide channel is equipped with a second water inlet, a water outlet and an inclined bottom surface. The second water inlet is wide and the water outlet is narrow. The water outlet is connected to the water storage tank. The water guide channel is equipped with a water baffle strip.

[0010] A scraper, extending along the axial direction of the drum with one end in close contact with the drum surface, is used to guide the water squeezed off the drum to the water guide channel and then further into the water storage tank; one end of the scraper partially squeezes the drum surface.

[0011] The cleaning tool also includes a power unit that circulates the water in the tank. Wastewater squeezed off the roller and water after rinsing the roller flow into the storage tank through the water guide channel. A water baffle prevents water from flowing back out of the first water inlet from the storage tank.

[0012] In some embodiments of this application, the water storage tank is further provided with a water outlet, and the bottom surface of the water guide channel is wedge-shaped.

[0013] In some embodiments of this application, the scraper is disposed at the first inlet of the water guide channel.

[0014] In some embodiments of this application, the housing is further equipped with:

[0015] The water pressure baffle has one end interfering with the roller and the other end equipped with a water spray nozzle. As the roller rotates, the surface of the roller is washed by water sprayed from the water spray nozzle and then continues to be squeezed by the water pressure baffle.

[0016] In some embodiments of this application, the water nozzle is configured as a water spray channel that is wide at the top and narrow at the bottom, and the water nozzle can be configured as one row or multiple rows.

[0017] In some embodiments of this application, the power unit reuses the purified water filtered by the filter assembly back onto the drum for recycling.

[0018] In some embodiments of this application, the power unit includes:

[0019] The water pump is connected to the outlet of the water storage tank and the spray nozzle of the water pressure baffle. The purified water obtained after filtration in the water storage tank is used by the water pump to clean the drum again, and the process is continuously circulated.

[0020] In some embodiments of this application, the scraper includes a guide end, there is no gap between the roller and the guide end, and the guide end is attached to or presses against the roller.

[0021] In some embodiments of this application, the scraper is made of a flexible rubber material.

[0022] In some embodiments of this application, the water-blocking strip extends upward away from the roller surface and parallel to the roller axis.

[0023] In some embodiments of this application, the water-blocking strip is located near the upper end of the water guide channel.

[0024] In some embodiments of this application, the water-blocking strip is disposed in the middle of the water guide channel, and the distance between the two sides of the water-blocking strip and the side wall of the water guide channel is equal.

[0025] In some embodiments of this application, the filter assembly is a filter plug, which can be inserted into / removed from the first water inlet, and the filter plug has a depth along the height direction.

[0026] In some embodiments of this application, the filter assembly is a non-removable filter screen, which can be cleaned with the help of other tools when cleaning is required.

[0027] In some embodiments of this application, the water tank of the floor cleaning tool further includes:

[0028] The brush has one or more rows located below the water guide channel, and the bristles of the brush are in contact with the surface of the roller.

[0029] In some embodiments of this application, the water-blocking strip is disposed on the bottom surface of the water guide channel to prevent water in the water storage tank from flowing back out of the second water inlet.

[0030] In some embodiments of this application, the water-blocking strip is located near the second water inlet.

[0031] Secondly, this application also provides a floor cleaning tool, comprising:

[0032] case;

[0033] The roller is mounted on the housing;

[0034] The water pressure baffle is installed on the housing, with one end interfering with the roller and the other end having a water spray nozzle;

[0035] The water tank as described in the first aspect;

[0036] The water pump is installed inside the housing. One end is connected to the outlet of the water storage tank through the first water pipe, and the other end is connected to both ends of the pressure baffle through two second water pipes. The water pump draws water from the water storage tank and flows from both ends of the pressure baffle towards the middle. Water is sprayed onto the drum through the outlet of the pressure baffle. The sewage squeezed off the drum and the water after rinsing the drum flow along the scraper surface and the water guide groove from both ends towards the middle and into the water storage tank.

[0037] The water pump reuses the purified water filtered by the filter assembly back onto the drum for recycling.

[0038] In some embodiments of this application, the floor cleaning tool further includes:

[0039] The trash can is mounted on the shell and located below the water channel; the water tank is also equipped with a brush, which is located above the trash can and contacts the sponge layer of the roller;

[0040] The shovel bar has one end in contact with the ground and the other end above the garbage bin. It has an arc-shaped working surface, and a garbage channel is formed between the arc-shaped working surface and the outer circumference of the roller.

[0041] In this process, the garbage scooped off the ground by the shovel is carried to the garbage bin by the roller, while the garbage embedded or adhered to the sponge layer is brushed into the garbage bin by the brush; fine particles of garbage that are not brushed off by the brush are washed away on the surface of the roller and mixed with sewage. The cleaning process separates dry and wet materials, achieving water and dust circulation.

[0042] In some embodiments of this application, the floor cleaning tool further includes:

[0043] The wheels are installed at the bottom of the water tank.

[0044] In some embodiments of this application, the floor cleaning tool further includes:

[0045] The handle is connected to the casing.

[0046] The water tank of this application's floor cleaning tool includes a water storage tank, a water guide channel, and a scraper. The water storage tank is used to store water and has a first water inlet, on which a filter assembly is detachably installed. The water guide channel has a second water inlet, an outlet, and an inclined bottom surface. The second water inlet is wide, and the outlet is narrow. The outlet is connected to the water storage tank, and a water-blocking strip is provided on the water guide channel. The scraper extends along the roller axis, with one end of the scraper closely attached to the roller surface, to guide the water squeezed off the roller to the water guide channel and then further into the water storage tank. One end of the scraper partially presses against the roller surface. The cleaning tool also includes a power device for circulating the water in the tank. Wastewater squeezed off the roller and water after rinsing the roller flow into the water storage tank through the water guide channel. The water-blocking strip prevents water from flowing back out of the first water inlet from the water storage tank. The scraper is located at the first water inlet of the water guide channel to guide the water squeezed off the roller into the water guide channel. The drain end of the squeegee adheres to the roller to minimize the risk of squeezed water flowing down the roller and into other parts of the floor cleaning tool. The drain end of the squeegee may interfere with the roller, but there is no gap between the roller and the drain end of the squeegee. The squeegee is made of flexible rubber material to ensure a better fit to the roller. Interference between the drain end of the squeegee and the roller means that the drain end partially presses against the surface of the roller. When the floor cleaning tool is in operation, water in the reservoir can easily slosh, potentially causing water to flow back from the reservoir through the first inlet of the water channel, overflowing onto the floor or into other parts of the floor cleaning tool. When the reservoir is full, water is more likely to overflow, rendering the floor cleaning tool unusable. To prevent water from flowing back from the reservoir through the first inlet of the water channel, a water-blocking strip can be installed on the water channel.

[0047] The floor cleaning tool of this application uses water recycling, can achieve self-cleaning of the roller, and has a simple structure with almost no noise during use.

[0048] This application utilizes water-dust circulation cleaning technology to achieve self-cleaning of the roller, and combines sweeping, mopping, washing, and wringing, greatly facilitating users and achieving excellent cleaning results, especially for sticky waste that is extremely difficult to handle, such as ketchup and chocolate sauce.

[0049] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of a water tank in an embodiment of this application.

[0051] Figure 2 for Figure 1 A magnified view of section A.

[0052] Figure 3 This is a schematic diagram of the structure of a cleaning tool in an embodiment of this application.

[0053] Figure 4 for Figure 3 An exploded view of the cleaning tools shown.

[0054] Figure 5 for Figure 3 A cross-sectional view of the cleaning tool shown.

[0055] Figure 6 for Figure 3 A schematic diagram of the cleaning tool from another direction.

[0056] Figure 7 for Figure 3 The diagram shows the internal structure of the cleaning tool, without the rollers installed.

[0057] Figure 8 for Figure 3 Another internal structure diagram of the cleaning tool shown illustrates how to disassemble the roller. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0060] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0061] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0062] Figure 1 The image shows a water tank 231 for a floor cleaning tool according to this application. It includes a water storage tank 231a and a water guide channel 231b. The water storage tank 231a has a first inlet for storing water. The bottom surface of the water guide channel 231b is inclined and wedge-shaped, and it has a second inlet and an outlet. The second inlet is wider, and the outlet is narrower. The outlet is connected to the inlet of the water storage tank 231a. Water squeezed from the rollers of the floor cleaning tool flows into the water storage tank 231a through the water guide channel 231b under its own weight.

[0063] This structure of the water channel 231b allows the water squeezed from the roller to flow smoothly into the water storage tank 231b without overflowing onto the ground.

[0064] Figure 1 The water tank 231 shown also includes a scraper 231c. The scraper 231c is positioned at the first inlet of the water guide trough 231b to guide water squeezed from the roller 111 into the water guide trough 231b. Optionally, the guide end of the scraper 231c is attached to the roller 111 (e.g., ...). Figure 3As shown, this arrangement minimizes the risk of squeezed water flowing along the roller 111 into other parts of the surface or floor cleaning tool. In other embodiments of this application, the drain end of the scraper 231c may also interfere with the roller 111, thus eliminating any gaps between the roller 111 and the drain end of the scraper 231c. Optionally, the scraper 231c may be made of a flexible rubber material to allow it to adhere better to the roller 111. Interference between the drain end of the scraper 231c and the roller 111 means that the drain end partially presses against the surface of the roller 111.

[0065] When the floor cleaning tool is in operation, the water in the water storage tank 231a is prone to sloshing, which may cause water to flow back from the water storage tank 231a to the upper end (first water inlet end) of the water guide channel 231b, overflowing onto the floor or other parts of the floor cleaning tool. When the water storage tank 231a is full of water, the water is more likely to overflow, making the floor cleaning tool unable to work. To prevent water from flowing back from the water storage tank 231a to the first water inlet of the water guide channel 231b, a water-blocking strip (not shown in the figure) may be provided on the water guide channel 231b. The water-blocking strip of this application is located near the upper end of the water guide channel 231b, and has a certain height and a certain length, the height and length of which can be set according to actual needs. The water-blocking strip is preferably located in the middle of the water guide channel 231b, with both sides equidistant from the side walls of the water guide channel 231b.

[0066] The wastewater squeezed out by the roller 111 usually contains small solid waste. In order to prevent solid waste from clogging the inlet of the water storage tank 231a and the water storage tank 231a, a filter assembly can be installed at the inlet of the water storage tank 231a to filter out the waste in the water. Figure 1 In the illustrated embodiment, the filtering component is a filter plug 231d. Water in the water channel 231b flows into the water storage tank 231a through the filter plug 231d, thereby filtering out most of the solid waste. Preferably, the filter plug 231d is detachably installed at the water inlet of the water storage tank 231a, allowing for easy cleaning. The greater the height of the filter plug 231d (maximum height equal to that of the water storage tank 231a), the more waste it can hold; the specific height can be set according to requirements.

[0067] In other embodiments of this application, the filtering component can also be a filter screen, which is installed at the inlet of the water storage tank 231a. Water in the water guide channel 231b flows into the water storage tank 231a through the filter screen, thereby filtering out most of the solid waste. In this case, the filter screen is not removable and needs to be cleaned with the help of other tools.

[0068] In this application, the water tank 231 can be made detachable and used only for water storage; once full, it can be emptied directly. Alternatively, it can be fixed to a floor cleaning tool, in which case the water storage tank 231a also has a water outlet. The purified water filtered by the filter assembly can be reused on the roller via a power device (such as a water pump), thus achieving water recycling.

[0069] When floor cleaning tools are in operation, solid waste accumulates on the rollers. Larger pieces of waste can fall into the waste bin of the floor cleaning tool due to their own weight, but smaller pieces are difficult to separate from the rollers. If they are not separated first, the wastewater squeezed out of the rollers will contain a large amount of small waste. In order to separate this waste from the rollers, the water tank 231 of this application may also include a brush 231e. Figure 2 for Figure 1 The enlarged view of part A clearly shows the structure of brush 231e. Brush 231e is arranged in one or more rows, located below water channel 231b and above trash can. When the water tank is installed on the floor cleaning tool, the bristles of brush 231e come into contact with the surface of roller 111. When the roller rotates, brush 231e rubs against the roller, thereby brushing the trash from the roller into the trash can.

[0070] Figures 3-5 This application presents a preferred embodiment of a floor cleaning tool including the aforementioned water tank 231. It includes a housing 500, a roller 111, a pressure baffle 122, a water tank 231, and a water pump 233. This floor cleaning tool is used for cleaning floors, especially smooth, flat, small areas such as home and kitchen floors. This floor cleaning tool is particularly suitable for cleaning mixed waste (sticky waste) containing dry waste, wet waste, and viscous substances such as noodles, porridge, and ketchup.

[0071] The roller 111 is mounted on the housing 500. The roller 111 has at least two layers. The outermost layer is a sponge layer for absorbing water and sweeping away debris. The innermost layer is a support layer made of rigid material. The drive motor can be housed inside the roller 111, which saves space and reduces the size of the floor cleaning tool.

[0072] Roller 111 can be configured to be detachable (e.g.) Figure 8 As shown, one end has a clip 111d for easy removal from the housing 500. The motor 113a is installed inside the roller 111, and the rotating shaft 113c is installed on the housing 500. The motor 113a drives the internal rigid material to rotate around its axis through a transmission mechanism, which in turn drives the sponge layer 111b to rotate, causing the surface of the sponge layer 111b to make circular motion.

[0073] The density and hardness of the sponge layer 111b of roller 111 directly affect its water absorption performance and water retention rate (also known as water-locking performance). When the sponge density increases to a certain extent, the water absorption performance will decrease, the hardness will increase, and the water retention rate will increase; conversely, when the sponge density decreases, the water absorption performance will increase, the hardness will decrease, and the water retention rate will decrease.

[0074] In some embodiments of this application, the sponge layer 111b can be made of polyvinyl alcohol (PVA) foam. The density of the PVA sponge is 0.5–0.25 g / cm³, and its water absorption rate is 0.5–1.5 g / cm³. The Shore hardness of the PVA sponge is 40–70. The water retention rate of the PVA sponge is 0.2–1.0 g / cm³. Because of these characteristics, this sponge layer has superior performance compared to existing single-layer ordinary sponge rollers.

[0075] The sponge layer possesses suitable water absorption and retention capacity, as well as appropriate density and hardness. This allows the sponge to deform just right during mopping, encapsulating garbage particles. When passing the scoop bar, its elasticity allows most garbage particles to be ejected from the sponge layer and fall into the dry waste collection unit, ensuring no waste is missed. Furthermore, when dealing with standing water on the floor, the sponge can absorb more water, leaving less water residue on the mopped surface.

[0076] This single-layer sponge layer avoids the drawback of double-layer sponges separating due to compression, which can affect the lifespan of the roller.

[0077] Optionally, the thickness of the sponge layer 111b is generally 3–15 mm, and its deformation is sufficient to wrap common particulate waste. Household cleaning tools equipped with a 5–10 mm thick sponge layer can handle common dry waste on household floors.

[0078] Figure 7 The diagram shown is a schematic of the motor 113a in the floor cleaning device when the roller 111 is not installed, according to one embodiment of this application.

[0079] The pressure baffle 122 is located inside the housing 500 and interferes with the sponge layer of the roller 111 (e.g., Figure 3 As shown), it is used to squeeze out the water from the sponge layer of the roller 111. The upper end of the water-pressing baffle 122 is equipped with a water spray nozzle for spraying water onto the sponge layer of the roller 111, thereby cleaning the sponge layer of the roller 111. The water spray nozzles can be configured in one or more rows, or as shown... Figure 3 As shown, the water spray channel is set up to be wider at the top and narrower at the bottom.

[0080] Figures 3-8In the illustrated embodiment, the water tank 231 is fixed to the floor cleaning tool, and the water storage tank 231a is also provided with a water outlet. The purified water filtered by the filter assembly can be reused on the roller via a power unit, thereby achieving water recycling.

[0081] Figures 3-8 In the illustrated embodiment, the power unit is a water pump 233. The water pump 233 is installed inside the housing 500, with one end connected to the outlet of the water tank 231 via a first water pipe 232a, and the other end connected to the outlet of the pressure baffle 122 via a second water pipe 232b. Figures 1-3 In the embodiment shown, there are two second water pipes 232b, which are connected to the left and right ends of the pressure baffle 122 respectively, so that the water sprayed is more even.

[0082] The pressure baffle 122 squeezes the sponge layer of the roller 111, and the squeezed wastewater flows into the water guide trough 231b under the guidance of the scraper 231c. After being filtered by the filter plug 231d, it enters the outlet trough 231a. The purified water obtained after filtration is reused by the water pump 233 to clean the roller 111 again. This cycle continues continuously to achieve the cleaning effect on the roller 111. Except for the first use when adding clean water to the water tank, the water in the floor cleaning tool of this application can be recycled to achieve a self-cleaning effect.

[0083] The floor cleaning tool of this application has a simple structure, is almost noiseless during use, and can also achieve water recycling.

[0084] Figures 3-8 The floor cleaning tools shown also include a trash can 141 and a shovel 112.

[0085] The trash can 141 is mounted on the housing 500, located below the water channel 231b. This arrangement saves space. The trash can 141 can be made removable for easy cleaning.

[0086] The shovel bar 112 has an arc-shaped working surface, with one end in contact with the ground when working. There is a uniform gap of a certain distance between the arc-shaped working surface and the outer circumference of the roller 111. This gap forms a garbage channel, through which solid garbage swept from the ground enters the garbage bin 141.

[0087] As the roller 111 rolls across the ground, the dry waste particles on the ground compress and deform the sponge layer 111b. The sponge layer 111b, through deformation, encapsulates the dry waste particles, causing them to separate from the ground and rotate with the roller 111. When it reaches the position of the shovel bar 112, the dry waste particles leave the ground and, under the pressure of the shovel bar 112, continue to rotate with the roller 111. When it passes the shovel bar 112 and reaches the entrance of the waste container 141, the sponge layer 111b, freed from the pressure of the shovel bar 112, deforms and releases the encapsulated dry waste particles, which then bounce into the waste container 141.

[0088] The floor cleaning tool of this application may also include at least two wheels 150, which are mounted on the bottom of the water tank 231 to allow the floor cleaning tool to move forward or backward.

[0089] Furthermore, the floor cleaning tool of this application may also include a handheld part (not shown in the figure). The handheld part is connected to the housing 500, and the user grips the handheld part to move the floor cleaning tool forward or backward to clean the floor. The switch for the water pump 233 may be located on the handheld part.

[0090] The floor cleaning tool of this application may also be equipped with a bumper strip (not shown in the figure) on the housing at the end with the roller 111 to prevent collisions and damage to the housing 500 during the floor cleaning process.

[0091] The floor cleaning tool of this application, except for the roller 111 and the wheel 150, does not have any other parts in contact with the ground.

[0092] The floor cleaning tool of this application can effectively clean up liquid waste and achieve self-cleaning of the roller. When equipped with a trash can and scraper, it can also clean up large solid waste particles.

[0093] In some embodiments of this application, the user adds clean water to the water tank 231, holds the handle, and turns on the water pump 233. The water pump 233 draws water from the water storage tank 231a to the spray nozzle of the pressure baffle 122, spraying the water onto the sponge layer of the roller 111. The user pushes the floor cleaning tool back and forth, and the roller 111 moves accordingly. Before contacting the ground, the sponge layer on the roller 111 is slightly wet (not saturated with water). After contacting the ground, the slightly wet sponge layer absorbs liquid debris on the ground while simultaneously sweeping away solid debris. Sticky debris adheres to the sponge layer.

[0094] With the assistance of the shovel bar 112, large solid waste particles carried by the roller 111 pass through the gap between the roller and the shovel bar 112 and reach the garbage bin 141. Small waste particles are embedded or adhered to the sponge layer. As the roller 111 moves, they reach the brush 231e. Under the action of the brush 231e, the small waste particles or hair embedded or adhered to the sponge layer are brushed off and enter the garbage bin 141 under their own weight.

[0095] The roller 111 continues to roll until it reaches the pressure baffle 122. The pressure baffle 122 squeezes the sponge layer, expelling the wastewater inside. The upper end of the pressure baffle 122 continuously sprays water, while the lower end continuously squeezes the sponge layer of the roller 111, effectively cleaning the roller 111 continuously during use. Sticky debris is released from the sponge layer 111b of the roller 111 and enters the wastewater. The squeezed-out wastewater is guided by the scraper 231c to the water guide trough 231b, then filtered by the filter plug 231d before entering the outlet trough 231a. The purified water obtained after filtration is reused by the water pump 233, and is drawn back to the spray nozzle of the pressure baffle 122 to clean the roller 111. This cycle continues, achieving floor cleaning.

[0096] In this application, water can be circulated multiple times, and garbage (dust) can be cleaned up smoothly. This application refers to this technology as water-dust circulation cleaning technology.

[0097] This application utilizes water-dust circulation cleaning technology to achieve self-cleaning of the roller, and combines sweeping, mopping, washing, and wringing, greatly facilitating users and achieving excellent cleaning results, especially for sticky waste that is extremely difficult to handle, such as ketchup and chocolate sauce.

[0098] Obviously, the above embodiments are merely examples for clearly illustrating this application and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A floor cleaning tool with a water tank, mounted on a housing, the housing having a rotatable roller for cleaning the floor, characterized in that, The water tank includes: A water storage tank for storing water is provided with a first water inlet, and a filter assembly is detachably installed at the first water inlet. The water guide channel is equipped with a second water inlet, a water outlet and an inclined bottom surface. The second water inlet is wide and the water outlet is narrow. The water outlet is connected to the water storage tank. The water guide channel is equipped with a water baffle strip. A scraper, extending along the axial direction of the drum with one end in close contact with the drum surface, is used to guide the water squeezed off the drum to the water guide channel and then further into the water storage tank; one end of the scraper partially squeezes the drum surface. The cleaning tool also includes a power unit that circulates the water in the tank. The sewage squeezed off the roller and the water after rinsing the roller flow into the water storage tank through the water guide channel. The water baffle prevents water from flowing back out of the first water inlet from the water storage tank.

2. The water tank for the floor cleaning tool as described in claim 1, characterized in that, The water storage tank is also provided with a water outlet, and the bottom surface of the water guide channel is wedge-shaped; Preferably, the scraper is positioned at the first inlet of the water guide channel; Preferably, the housing is further equipped with: The water-pressing baffle has one end interfering with the roller and the other end equipped with a water spray nozzle. As the roller rotates, the surface of the roller is washed by water sprayed from the water spray nozzle and then continues to be squeezed by the water-pressing baffle. Preferably, the water nozzle is configured as a water spray channel that is wide at the top and narrow at the bottom, and the water nozzle can be configured as one row or multiple rows.

3. The water tank for the floor cleaning tool as described in claim 2, characterized in that, The power unit reuses the purified water filtered by the filter assembly back onto the drum for recycling. Preferably, the power unit includes: The water pump is connected to the outlet of the water storage tank and the spray nozzle of the water pressure baffle. The purified water obtained after filtration in the water storage tank is used by the water pump to clean the drum again, and the process is continuously circulated.

4. The water tank for the floor cleaning tool as described in claim 2, characterized in that, The scraper includes a flow guide end, there is no gap between the roller and the flow guide end, and the flow guide end is attached to or presses against the roller; Preferably, the scraper is made of a flexible rubber material.

5. The water tank for the floor cleaning tool as described in claim 2, wherein the water-retaining strip extends upward away from the surface of the roller and extends parallel to the axis of the roller; Preferably, the water-blocking strip is located near the upper end of the water guide channel; Preferably, the water-blocking strip is disposed in the middle of the water guide channel, and the distance between the two sides of the water-blocking strip and the side wall of the water guide channel is equal.

6. The water tank for the floor cleaning tool as described in any one of claims 2-5, characterized in that, The filter assembly is a filter plug, which can be inserted into / removed from the first water inlet from the top and bottom, and the filter plug has a depth along the height direction. Preferably, the filter assembly is a non-removable filter screen, which can be cleaned with the help of other tools when cleaning is required.

7. The water tank for the floor cleaning tool as described in claim 2, characterized in that, Also includes: The brush has one or more rows located below the water guide channel, and the bristles of the brush are in contact with the surface of the roller.

8. The water tank for the floor cleaning tool as described in claim 2, characterized in that, The water-blocking strip is located on the bottom surface of the water guide channel to prevent water in the water storage tank from flowing back out of the second water inlet; Preferably, the water-blocking strip is located near the second water inlet.

9. A floor cleaning tool, characterized in that, include: case; The roller is mounted on the housing; The water pressure baffle is installed on the housing, with one end interfering with the roller and the other end having a water spray nozzle; The water tank as described in any one of claims 2-8; The water pump is installed inside the housing. One end is connected to the outlet of the water storage tank through the first water pipe, and the other end is connected to both ends of the pressure baffle through two second water pipes. The water pump draws water from the water storage tank and flows from both ends of the pressure baffle towards the middle. Water is sprayed onto the drum through the outlet of the pressure baffle. The sewage squeezed off the drum and the water after rinsing the drum flow along the scraper surface and the water guide groove from both ends towards the middle and into the water storage tank. The water pump reuses the purified water filtered by the filter assembly back onto the drum for recycling.

10. The floor cleaning tool according to claim 9, characterized in that, Also includes: The trash can is mounted on the shell and located below the water channel; the water tank is also equipped with a brush, which is located above the trash can and contacts the sponge layer of the roller; The shovel bar has one end in contact with the ground and the other end above the garbage bin. It has an arc-shaped working surface, and a garbage channel is formed between the arc-shaped working surface and the outer circumference of the roller. In this process, the garbage scooped off the ground by the shovel is carried to the garbage bin by the roller, while the garbage embedded or adhered to the sponge layer is brushed into the garbage bin by the brush; fine particles of garbage that are not brushed off by the brush are washed away on the surface of the roller and mixed with sewage. The cleaning process separates dry and wet materials, achieving water and dust circulation. Preferably, the floor cleaning tool further includes: Wheels are installed at the bottom of the water tank; Preferably, the floor cleaning tool further includes: The handle is connected to the casing.

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