Cleaning tool

Abstract

The invention discloses a cleaning tool which comprises a cleaning head, the cleaning head comprises a shell, a mopping and sweeping unit, an extrusion unit, a cleaning unit and a dry garbage collecting unit, the mopping and sweeping unit, the extrusion unit, the cleaning unit and the dry garbage collecting unit are installed on the shell, the cleaning unit is a scraping strip assembly, the mopping and sweeping unit mops and sweeps the ground, and the cleaning unit separates and collects solid garbage attached to the surface of the mopping and sweeping unit; the squeezing unit is used for squeezing the mopping and sweeping unit to form a water squeezing area; the scraping strip assembly comprises a friction part and a drainage part, the end of the friction part interferes with the surface of the mopping and sweeping unit, and the drainage part is attached to the mopping and sweeping unit for sealing water; the cleaning tool can treat viscous garbage and separate dry garbage from wet garbage.

Description

[0001] This application is a divisional application of Chinese Patent Application No. 202010075477.1 entitled "Cleaning Tool, Method for Control Assistance and Apparatus for Implementing the Method", the contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of cleaning equipment, and in particular relates to a cleaning tool for cleaning floors. Background Technology

[0003] People typically clean floors using tools such as brooms, mops, and floor scrubbers, which rely mainly on manual operation. However, with technological advancements, people's demands for floor cleaning tools are gradually increasing.

[0004] The first type of vacuum cleaner appeared, working on the principle of "airflow," meaning it relies on electricity to generate negative pressure and suck up trash and dust from the floor. However, due to the limitations of its working principle, vacuum cleaners cannot clean some stubborn dirt and stains that are firmly attached to the floor, and liquid entering the vacuum cleaner can easily damage it. Therefore, a new type of floor cleaner has emerged. This new floor cleaner uses a motor to drive a cleaning cylinder (cleaning roller) to wipe the floor, typically using a sponge or scouring pad. It also features a water supply system and a water tank to clean the cleaning cylinder, thus achieving a perfect cleaning of the floor. After cleaning, the sponge is usually squeezed dry; otherwise, water would have flowed onto the floor when the sponge was squeezed against the floor.

[0005] For cleaning tools that are heavy, they are usually equipped with motor drives. However, motor drives are similar to motor vehicles, making them complex and expensive, which is not suitable for some small cleaning tools. Small cleaning tools are mostly operated by the elderly and women, and the overly complex controls are not suitable for this consumer group.

[0006] Furthermore, household and kitchen waste often consists of a mixture of dry and wet waste, and may also contain various sticky wastes such as syrups and ketchup. Existing cleaning tools are ineffective and helpless when dealing with sticky waste, especially the mixture of dry, wet and sticky waste.

[0007] The content in the background section is merely technology known to the public and does not necessarily represent existing technology in this field. Summary of the Invention

[0008] In view of at least one of the defects in the prior art, this public provides a cleaning tool and a method for controlling the assist output, which helps to better control the assist output of the cleaning tool and makes the use of the cleaning tool more user-friendly.

[0009] This application provides a cleaning tool, including a cleaning head. The cleaning head includes a housing and a sweeping unit, a squeezing unit, a cleaning unit, and a dry waste collection unit mounted on the housing. The cleaning unit is a scraper assembly. The sweeping unit sweeps the ground, and the cleaning unit separates and collects solid waste attached to the surface of the sweeping unit. The squeezing unit is used to squeeze the sweeping unit to form a water-squeezing zone. The scraper assembly includes a friction part and a drainage part. The end of the friction part interferes with the surface of the sweeping unit, and the drainage part is attached to the sweeping unit to seal in water.

[0010] In one or more embodiments,

[0011] The scraper assembly includes a scraper bracket, which is provided with a friction part and a drainage part.

[0012] The friction head removes the loose dust and sticky debris adhering to the sweeping unit.

[0013] The drainage section is also used to guide water to prevent the squeezed-out water from overflowing into the dry waste collection unit.

[0014] In one or more embodiments, the cleaning head is equipped with an assist wheel assembly, which includes a wheel, a drive shaft, a retaining cover, and a retaining cover cover.

[0015] The drive shaft passes through the hole in the center of the fixed cover and the wheel, and connects to the output shaft of the motor;

[0016] The retaining cover and retaining cover cover form a space to accommodate the wheels; the retaining cover and retaining cover cover are fixed to the bottom of the cleaning head.

[0017] In one or more embodiments, the power wheel assembly is located at the rear of the cleaning head.

[0018] In one or more embodiments, the cleaning tool further includes a handheld portion, the handheld portion comprising:

[0019] The cleaning rod has a hinge structure at its end near the cleaning head, which is pivotally hinged to the cleaning head. The handle is also pivotally hinged to the cleaning head via the hinge structure. A water supply unit is provided on the cleaning rod to supply clean water to the cleaning head.

[0020] In one or more embodiments, the purified water supply unit includes a purified water tank with a purified water outlet facing the squeezing unit, and purified water flows downward from the squeezing unit into the squeezing area to rinse the surface of the squeezing unit.

[0021] In one or more embodiments, a clean water tank is located at one end of the cleaning rod near the cleaning head, and a clean water inlet is provided on the housing. The clean water inlets are arranged in an elongated shape, and the clean water outlet of the clean water tank is connected to the clean water inlet through a pipeline.

[0022] In one or more embodiments, the cleaning rod is equipped with an ozone generator and an air pump for disinfecting the water tank.

[0023] In one or more embodiments, the cleaning rod is hollow inside and has an assist control system, and the cleaning rod extends upward to a handle, which has an assist recognition structure.

[0024] In one or more embodiments, the cleaning head includes a drive unit, an assist identification structure is electrically connected to an assist control system, the assist control system is electrically connected to the drive unit to control the direction of the drive unit, the drive unit has a motor, and the assist control system can control the drive unit to drive the assist wheel assembly to make the cleaning head move forward or backward.

[0025] In one or more embodiments, the cleaning tool further includes:

[0026] The extension rod, connected to the cleaning rod via a connecting structure, extends the overall length of the handle.

[0027] In one or more embodiments, the sweeping unit includes a roller and a roller drive mechanism for driving the roller to rotate, with the roller mounted at the front end of the housing.

[0028] In one or more embodiments, the sweeping unit further includes a roller drive mechanism, which drives the roller to rotate.

[0029] In one or more embodiments, the roller includes a rigid rubber core located at the axis and a sponge layer wrapped around and fixed to the circumferential surface of the rigid rubber.

[0030] In one or more embodiments, the end of the rigid rubber can be fixed to the housing by a connector, and the roller drive mechanism drives the rigid rubber to rotate around its axis, thereby causing the sponge layer to rotate.

[0031] In one or more embodiments, the mopping unit further includes a pressing and telescopic device for fixing one end of the hard rubber. The pressing and telescopic device includes a button, a spring and a stop block. The stop block can be engaged with the housing. When the button is pressed, the spring is compressed and the stop block is retracted. When the button is released, the spring returns and the stop block is reset.

[0032] When the button is pressed, the button compression spring causes the stop block to move away from the position that abuts the hard rubber. At this time, the end of the hard rubber can be moved out of the roller mounting groove on the housing.

[0033] In one or more embodiments, the housing is provided with a recess, and the stop block can engage with the housing at the recess.

[0034] In one or more embodiments, the roller drive mechanism includes a drive motor, one end of which is fixed to the housing via a fixed seat and a rotating shaft, and the other end of which can rotate around the rotating shaft at a certain angle.

[0035] One end of the rigid plastic hollow cylinder is fitted onto the drive motor;

[0036] After pressing the button to move the roller out of the roller mounting slot on the housing, the roller drives the drive motor to rotate around the shaft, and the roller can be pulled out from the drive motor.

[0037] In one or more embodiments, the roller has a structure with both ends sealed, and the drive motor is connected to the roller through a connector.

[0038] In one or more embodiments, the sponge layer is a single-layer sponge layer.

[0039] In one or more embodiments, the sponge layer of the roller is provided with helical protrusions.

[0040] In one or more embodiments, the sweeping unit further includes a shovel blade fixed to the housing, having an arc-shaped working surface, and forming a uniformly spaced gap between the arc-shaped working surface and the outer circumference of the roller.

[0041] In one or more embodiments, the scraper assembly is in close contact with the roller, and the scraper assembly further includes:

[0042] The scraper support is long and extends in the width direction, fixed to the housing, and located above the dry waste collection unit, close to the drum. The friction part can peel off the floating dust and sticky waste remaining on the drum. The drainage part is located at both ends of the scraper support, one end is close to the drum and pre-pressed towards the center of the drum, and the other end extends along the height of the scraper support to prevent water squeezed out from the drum from flowing from both ends of the scraper assembly into the dry waste collection unit. The friction part and the drainage part are arranged in a herringbone shape on the scraper support.

[0043] In one or more embodiments, the edge of the friction part is toothed.

[0044] In one or more embodiments, the scraper bracket is provided with a plurality of alignment blocks at the position opposite to the friction part and the drainage part, and the housing is provided with a plurality of recesses corresponding to the alignment blocks.

[0045] In one or more embodiments, the friction part, the drainage part, and the scraper bracket are fixed together by adhesive bonding after each is formed.

[0046] In one or more embodiments, the scraper bracket can be fixed to the housing by adhesive or secondary injection molding.

[0047] In one or more embodiments, the end of the friction part interferes with the surface of the roller by 0-0.5 mm.

[0048] In one or more embodiments, the drain section is pre-pressed towards the center of the roller by 0.5-3 mm.

[0049] In one or more embodiments, the friction part, the drainage part, and the scraper bracket are made of different materials.

[0050] In one or more embodiments, the extrusion unit interferes with the roller, and the extruded water exists between the two to form a water tank. The extrusion unit includes:

[0051] The mounting base is connected to the housing and secures the extrusion unit to the housing.

[0052] The strip-shaped protrusions are connected to the fixed base, and the sponge layer is squeezed to squeeze the sewage out of the roller surface and into the water tank.

[0053] In one or more embodiments, the extrusion unit is a cylindrical extrusion roller with both ends fixed to the housing.

[0054] In one or more embodiments, the surface of the extrusion roller has spiral protrusions that help push the wastewater extruded by the extrusion roller to the wastewater outlet.

[0055] In one or more embodiments, the extrusion roller includes a roller body that is cylindrical, and the extrusion roller is mounted on a housing through both ends of the roller body, and the roller body is rotatable.

[0056] In one or more embodiments, the surface of the roller body has a second helical protrusion that helps push the wastewater extruded by the squeeze roller to the wastewater outlet.

[0057] In one or more embodiments, the number of second spiral protrusions is one, extending spirally from one end of the extrusion roller to the other end.

[0058] In one or more embodiments, there are two second spiral protrusions, which start from the same generatrix at both ends of the roller body and extend spirally toward the middle of the roller body in opposite spiral directions.

[0059] In one or more embodiments, there are two second spiral protrusions, and a straight protrusion parallel to the roller axis is provided in the middle of the roller body. The straight protrusion can be connected with the two spiral protrusions to form a closed sidewall on the surface of the roller body. The sidewall helps to push the sewage squeezed out by the extrusion roller to the sewage outlet.

[0060] In one or more embodiments, a first motor is fixed to the housing of the cleaning head, and the first motor is connected to the extrusion roller to drive the extrusion roller to rotate.

[0061] In one or more embodiments,

[0062] As the roller rolls across the ground, the dry waste particles on the ground compress and deform the sponge layer. The sponge layer wraps around the dry waste particles through deformation, causing the dry waste particles to separate from the ground.

[0063] When the roller rotates to the position of the shovel bar, the particles of dry waste leave the ground and are squeezed by the shovel bar;

[0064] When the roller rotates past the shovel bar and reaches the entrance of the dry waste collection unit, the sponge layer recovers its deformation due to the loss of pressure from the shovel bar, releasing the dry waste particles it encloses and causing them to bounce into the dry waste collection unit.

[0065] In one or more embodiments, after the roller passes through wet waste, the sponge layer between the grounding point and the squeezing point contains sewage. After being squeezed by the squeezing unit, the sewage leaves the sponge layer in the squeezing area, so that the water content of the sponge layer passing through the squeezing point is not saturated, and it can continue to absorb water when it rotates back to the grounding point and contacts the ground.

[0066] The beneficial effects of this application are as follows:

[0067] In the embodiments of the cleaning tool using this application, the moistened outer layer of the roller sponge contacts the ground without stirring up dust, achieving the effect of a regular mop and preventing secondary pollution. The outer layer of the roller sponge works in conjunction with the scraper to completely collect solid waste. The cleaning unit separates and collects the solid waste adhering to the outer layer of the sponge, keeping the surface of the outer layer of the sponge free of solid waste. The roller absorbs wet waste from the ground, and when the water inside is squeezed out, it peels off and dilutes the sticky waste adhering to the roller surface. The water-soluble portion is carried into the wastewater tank, while the water-insoluble portion is peeled off from the roller and enters the solid waste tank, thereby processing sticky waste and separating dry and wet waste. The squeezing unit squeezes out the liquid locked inside the outer layer of the sponge, keeping the outer layer of the sponge unsaturated, thus enabling the cleaning tool to continuously clean liquid waste. The water supply unit and the squeezing unit work together to keep the roller in contact with the ground always clean. The cleaning tool can clean sticky wet waste, especially mixtures of various types of waste, and can separate dry and wet waste, continuously keeping the surface of the outer layer of the roller sponge clean.

[0068] In this embodiment of the cleaning tool, the filter screen or filter box can filter out dry or fine debris that may accidentally enter the water path, preventing water pump blockage and extending the service life of the cleaning head. This embodiment can also integrate an ozone generator into the mop handle, introducing the generated ozone into the water tank, so that the water in the tank contains ozone, preventing bacterial growth and mold growth for a period of time; furthermore, using ozone-containing water to clean the roller and then the roller to clean the floor can disinfect and sterilize the floor. The strip-shaped protrusions in this embodiment can be replaced with a threaded compression roller, which has a stronger guiding effect on water flow. This embodiment uses a power-driven roller, making operation more convenient. In addition, the roller and water tank in this embodiment are both detachable for easy maintenance and cleaning; the use of a filter device keeps the water path clean, extending its service life; ozone has a disinfecting effect on the cleaning tool and the floor, resulting in a more thorough cleaning.

[0069] The solutions of the various embodiments of this disclosure are applied to cleaning tools. The cleaning tools employ "water-dust circulation" cleaning technology, which can clean sticky wet waste that is most difficult for existing cleaning tools to remove, and separate it from dry waste.

[0070] This invention discloses a power-assist recognition structure mounted on a mop handle. By sensing changes in the magnitude and direction of the force applied by the operator to the mop handle, the structure can sensitively detect the operator's intention and control the motor to drive the cleaning tool to make adaptive changes, resulting in a more user-friendly design.

[0071] The mechanism for assisting in identification is simple and can be integrated into the mop handle without increasing the size or weight of the cleaning tool. It enriches the functions of the cleaning tool, but the increase in manufacturing cost is small. Attached Figure Description

[0072] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure. In the drawings:

[0073] Figure 1 This is a perspective view of an embodiment of the cleaning tool disclosed herein;

[0074] Figure 2 for Figure 1 Exploded view of the cleaning head;

[0075] Figure 3 for Figure 1 Schematic diagram of the internal structure of the cleaning head;

[0076] Figure 4 for Figure 1 Schematic diagram of the cleaning head cross-section;

[0077] Figure 5 for Figure 1 Diagram of the bottom surface of the cleaning head;

[0078] Figure 6 for Figure 1 Side view of the cleaning head;

[0079] Figure 7 A schematic diagram showing the formation of the water-squeezing zone;

[0080] Figure 8 This is a schematic diagram of a roller structure according to an embodiment of the present disclosure;

[0081] Figure 9 A cross-sectional view of a cleaning tool with the aforementioned rollers;

[0082] Figure 10 for Figure 9 A side view diagram;

[0083] Figure 11This is a perspective view of one embodiment of the drum;

[0084] Figure 12 This is a schematic diagram showing the drum in disassembled state;

[0085] Figure 13 for Figure 12 Another perspective illustration;

[0086] Figure 14 This is a schematic diagram of one embodiment of the extrusion roller;

[0087] Figure 15 This is a schematic diagram of another embodiment of the extrusion roller;

[0088] Figure 16 This is a schematic diagram of a threaded water guide in one embodiment;

[0089] Figure 17 This is a schematic diagram of a two-stage water tank structure;

[0090] Figure 18 For those with Figure 14 Extrusion rollers and Figure 8 A schematic diagram of the internal structure of a roller-type cleaning tool;

[0091] Figure 19 This is a schematic diagram of the water tank formed by the interference of the extrusion roller and the drum in one embodiment;

[0092] Figure 20 This is a schematic diagram of the water tank formed by the interference of the extrusion roller and the drum in another embodiment;

[0093] Figure 21 This is a schematic diagram of a cleaning unit consisting of a straight-line brush.

[0094] Figure 22 A schematic diagram of the cleaning unit consisting of a scraper assembly and a straight brush.

[0095] Figure 23 This is a schematic diagram of the scraper blade in one embodiment;

[0096] Figure 24 This is a structural schematic diagram of an embodiment including a sewage tank and a clean water tank;

[0097] Figure 25 A schematic diagram of a cleaning tool with an assistive system;

[0098] Figure 26 for Figure 25 A cross-sectional view of the cleaning head;

[0099] Figure 27 An exploded view of a handle with an assisted recognition mechanism;

[0100] Figure 28A schematic diagram showing the rotating state of the power steering wheel assembly;

[0101] Figure 29 An exploded view of the booster wheel assembly structure. Detailed Implementation

[0102] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this disclosure. Therefore, the drawings and description are to be considered exemplary in nature and not restrictive.

[0103] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this disclosure 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 disclosure. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0104] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or connections that allow for communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0105] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0106] The following disclosure provides numerous different embodiments or examples for implementing various structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this disclosure, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0107] The preferred embodiments of this disclosure are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0108] The cleaning tools disclosed herein are used for cleaning floors, especially smooth, flat, small areas such as household and kitchen floors. These cleaning tools are particularly suitable for cleaning mixed waste containing dry waste, wet waste, and sticky substances such as noodles, porridge, and ketchup.

[0109] The dry waste mentioned in this disclosure specifically refers to granular waste, such as fruit peels, melon seed shells, rice grains, and paper scraps.

[0110] Wet waste is liquid waste, such as water and beverages.

[0111] Sticky wet waste includes semi-solid waste with a certain viscosity, such as soup, stew, porridge, tomato sauce, and chocolate sauce.

[0112] Other types of litter, such as dust and ground markings, are also included in this cleaning program.

[0113] Figure 1 This is a perspective view of an embodiment of the cleaning tool disclosed herein. Figure 2 An exploded view of the cleaning head; Figure 3 This is a schematic diagram of the internal structure of the cleaning head; Figure 4 This is a schematic diagram of the cross-section.Figure 5 This is a diagram illustrating the cleaning process on the bottom of the head. Figure 6 This is a side view diagram of the cleaning head. (Combined with...) Figures 1 to 6 As shown, the cleaning tool disclosed herein includes a cleaning head and a handheld part connected together. The handheld part includes a cleaning rod 301 and an extension rod 302, which are connected by a connecting structure 304. The cleaning rod 301 is connected to the cleaning head via a hinge structure 305. The operator moves the cleaning head across the ground using the handheld part to clean up various types of litter scattered on the ground.

[0114] The cleaning head of this disclosed cleaning tool includes a housing 500, with a cleaning module installed at the bottom and inside the housing. The cleaning module separates debris from the ground and into the housing. Wheels 190 are installed on the bottom of the housing to reduce contact between the non-cleaning module and the ground, making dragging easier.

[0115] The cleaning module includes a sweeping unit 110 located at the bottom of the housing, a squeezing unit 120 arranged in parallel with the sweeping unit, a dry waste collection unit 150 located behind the sweeping unit for storing dry waste, a cleaning unit 130 located at the inlet of the dry waste collection unit 150, a sewage collection unit 140, and a clean water supply unit 160.

[0116] The sweeping unit 110 includes a roller 111, a shovel 112, a roller drive mechanism 113, and a roller transmission mechanism 114. The roller drive mechanism drives the roller 111 to move in a sweeping motion via the roller transmission mechanism. Figure 4 The blade 112 rotates counterclockwise around its axis. It is fixed to the housing 500 and has an arc-shaped working surface. The arc-shaped working surface and the outer circumference of the drum 111 form a uniformly spaced gap.

[0117] Roller 111 includes an inner layer of hard rubber and a sponge layer wrapped around the hard rubber. The end of the hard rubber can be fixed to the housing 500 by bearings or other connecting parts. Roller drive mechanism 113 drives the hard rubber to rotate around its axis through roller transmission mechanism 114, which in turn drives the sponge layer to rotate, causing the surface of the sponge layer to make a circular motion.

[0118] As the roller 111 rolls across the ground, the dry waste particles on the ground compress and deform the sponge layer. The sponge layer, 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 dry waste collection unit 150, 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 dry waste collection unit 150.

[0119] The axis of the extrusion unit 120 is parallel to that of the roller 111. It can be fixed to the housing 500 by means of both ends or by means of a snap-fit ​​structure. The hardness of the extrusion unit 120 is much greater than that of the sponge layer 111b. The distance between the axes of the extrusion unit 120 and the roller 111 is less than the sum of their radii. Therefore, after assembly, the extrusion unit 120 extrudes the surface of the roller. A dewatering zone B is formed at the position of the extrusion unit 120 facing the roller 111.

[0120] Figure 7 This is a schematic diagram of the water-squeezing zone formation, as shown below. Figure 7 As shown, the squeezing unit 120 interferes with the roller 111, squeezing the sponge layer 111b of the roller at the interference point. In the figure, the roller 111 rotates clockwise, forming a squeezing zone B below the squeezing unit 120. The water carried on the sponge layer 111b of the roller flows out after squeezing and is collected by the sewage collection unit 140. When the roller passes over wet waste, the sponge layer carrying the wet waste continues to rotate clockwise. On the roller, the sponge layer between the ground contact point M (the position in contact with the ground) and the squeezing point N (the position in contact with the squeezing unit 120) contains sewage. After being squeezed by the squeezing unit 120, the sewage leaves the sponge layer in the squeezing zone B and is collected by the sewage collection unit 140, so that the water content of the sponge layer after passing the squeezing point N is unsaturated. When it rotates back to point M and contacts the ground again, it can continue to absorb water. In this way, the cleaning tool can continuously absorb the water on the ground and avoid the sponge becoming saturated and unable to absorb water effectively.

[0121] The cleaning tool disclosed herein also includes a purified water supply unit 160. The purified water supply unit 160 delivers purified water directly or indirectly to the sponge layer 111b. The purified water enters the interior of the sponge layer and overflows from the sponge layer when squeezed by the squeezing unit 120, peeling off dirt adhering to the surface of the sponge layer 111b, thereby cleaning the surface of the roller.

[0122] When the roller rolls over the sticky wet waste on the ground, the sticky wet waste adheres to the surface of the sponge layer 111b. The clean water supplied by the clean water supply unit 160 washes away the sticky wet waste layer adhering to the surface of the sponge layer 111b.

[0123] To maintain the relatively dry state of the squeezed sponge layer, the clean water supply unit 160 sets the clean water outlet in the squeezing zone. In the squeezing zone, the sponge layer 111b absorbs clean water, becoming saturated. Then, through the squeezing unit 120, the wet debris and water trapped in the sponge layer and absorbed from the ground are discharged. This liquid discharge process carries away the sticky wet debris from the surface of the sponge layer 111b, keeping the surface clean. Therefore, this disclosure achieves cleaning of the roller brush 111 surface without operator intervention or interruption of the cleaning process; the roller brush surface in contact with the ground remains clean during the roller's movement.

[0124] This disclosure also includes a cleaning unit 130. The cleaning unit 130 is located above the inlet of the dry waste collection unit 150. When the roller surface rotates past the upper end of the shovel bar and reaches the inlet of the dry waste collection unit 150, solid waste adhering to its surface cannot detach from the sponge layer 111b due to the elasticity of the sponge and its own weight. The cleaning unit 130 scrapes it off, and the scraped-off waste falls into the dry waste collection unit 150 under its own weight. The cleaning unit 130 is particularly suitable for some light and easily adhered waste, such as paper scraps. The cleaning unit 130 keeps the surface of the sponge layer 111b free of dry waste.

[0125] The cleaning tool disclosed herein also includes a water circulation module, which comprises a wastewater collection unit 140 and a purified water supply unit 160 connected by pipes. Wastewater is squeezed out from the roller 111, and the squeezed wastewater is collected in the wastewater collection unit 140 through pipes. After purification, it enters the purified water supply unit 160 for reuse and is sprayed again onto the aforementioned squeezing area to clean the roller brush.

[0126] The beneficial effects of this disclosure are as follows:

[0127] When using this invention to clean the floor, the wet outer sponge contacts the floor and will not stir up dust, achieving the effect of an ordinary mop and preventing secondary pollution.

[0128] The outer sponge works in conjunction with the shovel bar to completely collect solid waste;

[0129] The cleaning unit separates and collects the solid waste attached to the outer layer of the sponge, keeping the surface of the outer sponge free of solid waste;

[0130] The roller absorbs wet waste from the ground. When the water inside is squeezed out, it peels off and dilutes the sticky waste attached to the surface of the roller. The water-soluble part is carried into the sewage tank, while the water-insoluble part is peeled off from the roller and enters the solid waste bin. This process can handle sticky waste and separate dry and wet waste.

[0131] The squeezing unit squeezes out the liquid locked inside the outer sponge, keeping the outer sponge unsaturated, thus enabling the cleaning tool to continuously clean up liquid waste.

[0132] The water supply unit and the squeezing unit work together to keep the rollers in contact with the ground clean at all times;

[0133] Therefore, this disclosure can clean sticky wet waste, especially mixtures of various types of waste, and can separate dry and wet waste, continuously keeping the outer sponge surface of the roller clean.

[0134] The components disclosed herein, and the combinations thereof, are not unique; each will be explained in detail below.

[0135] Examples of rollers

[0136] Figure 8 This is a schematic diagram of a roller structure according to an embodiment of the present disclosure. Figure 8 As shown, the roller includes a rigid rubber 111c located at the axis and a sponge layer 111b that is wrapped and fixed to the circumferential surface of the rigid rubber.

[0137] The density and hardness of a sponge directly affect its water absorption and water retention rate (also known as water-locking capacity). When the density of a sponge increases to a certain extent, its water absorption decreases, its hardness increases, and its water retention rate increases; conversely, when the density of a sponge decreases, its water absorption increases, its hardness decreases, and its water retention rate decreases.

[0138] The roller in this embodiment has only one sponge layer, sponge layer 111b, which is made of polyvinyl alcohol (PVA) foam. The density of the PVA sponge is 0.5-0.25 g / cm3, and the water absorption rate is 0.5-1.5 g / cm3. The Shore A 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, the sponge layer disclosed herein has superior performance compared to existing single-layer ordinary sponge rollers.

[0139] 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.

[0140] The single-layer sponge layer disclosed herein does not suffer from the drawback of double-layer sponge separating and delaminating due to compression, which would affect the lifespan of the roller.

[0141] Figure 9 This is a cross-sectional view of a cleaning tool with the aforementioned rollers. Figure 10 for Figure 9 A side view diagram; Figure 11 This is a perspective view of one embodiment of the drum; Figure 12 This is a schematic diagram showing the drum in disassembled state; Figure 13 for Figure 12 Another perspective illustration. Combined with... Figures 8 to 12 As shown, one end of the hard rubber includes a connecting shaft, and the other end is a hollow cylindrical shape.

[0142] One end of the drive motor 113a is fixed to the cleaning head via a mounting base 113e and a rotating shaft 113c, while the other end can rotate around the shaft at a certain angle. One hollow end of the rigid rubber 111c is fitted onto the motor, with this end abutting against the drive motor 113a. The other end of the rigid rubber is fixed to a pressing and telescopic device on the cleaning head. The pressing and telescopic device 113f includes a button, a spring, and a stop. When the button is pressed, the spring compresses, causing the stop to move away from the position abutting the rigid rubber. At this time, the end of the rigid rubber 111c can be moved out of the roller mounting slot on the cleaning head housing, and the other end drives the drive motor 113a inside to rotate around the rotating shaft 113c, forming... Figure 12 , 13 To remove the roller 111, pull it out of the motor. Pressing the button on the telescopic device retracts the stop block, and releasing the button resets the stop block. Reversing this operation allows the roller to be installed on the cleaning head. Alternatively, press the button on the roller; the spring will retract the stop block, pushing it out from the recess on the cleaning head housing, freeing the roller from the cleaning head's grip. The roller can then be easily removed.

[0143] The roller disclosed herein can also be made with both ends sealed, and the drive motor is connected to the roller via a connector to drive the roller to rotate. Cleaning tools with a roller drive motor can reduce the pushing force required by the operator, making them suitable for operators with insufficient strength.

[0144] The spiral protrusions on the roller can guide the wastewater squeezed out by the extrusion unit to a designated location, such as the wastewater suction nozzle, along the thread direction. This can prevent wastewater from overflowing and causing secondary pollution to the bottom surface.

[0145] Examples of extrusion units

[0146] The extrusion unit disclosed herein includes an elongated object arranged parallel to and interfering with the roller. The elongated object is fixed to the housing of the cleaning head, interfering with the roller. The hardness of the elongated object is greater than the hardness of the sponge layer on the roller surface, allowing it to compress and deform the sponge layer. The extrusion unit can have different physical structures, each with its own advantages.

[0147] like Figure 9 The extrusion unit includes a fixed base 125 and strip-shaped protrusions 126. The extrusion unit is fixed to the housing by the fixed base. When the roller 111 rotates around its own axis, the strip-shaped protrusions 126 remain stationary. The sponge layer is squeezed and deformed through the strip-shaped protrusions, and most of the water locked in the sponge layer is squeezed out of the sponge surface and flows downward.

[0148] The extrusion unit can be a cylindrical extrusion roller, fixed to the cleaning head at both ends. The surface of the extrusion roller can be smooth or have spiral protrusions.

[0149] Figure 14 This is a schematic diagram of one embodiment of the extrusion roller, as shown below. Figure 14 As shown, the extrusion roller 121 of this embodiment includes a roller body 121a, which is cylindrical and mounted on the housing of the cleaning head at both ends. The circumferential surface of the roller body 121a has a spiral protrusion, which can be referred to as a second spiral protrusion 121f to distinguish it from the spiral protrusion on the roller. There is one spiral protrusion on the circumferential surface of the extrusion roller, which extends from one end of the extrusion roller to the other end.

[0150] Figure 15 This is a schematic diagram of another embodiment of the extrusion roller. This embodiment is similar to... Figure 14 The difference in the embodiment shown is that the second spiral protrusion 121f consists of two lines, which start from the same generatrix at both ends of the roller body 121a and extend toward the middle of the roller body in opposite spiral directions.

[0151] In this embodiment, a straight protrusion 121g parallel to the axial direction of the roller body 121a is provided at the middle position of the two second spiral protrusions 121f in the middle part of the roller body 121a. The straight protrusion 121g can be connected to the two second spiral protrusions.

[0152] In this way, a closed sidewall can be formed on the surface of the roller 121a at this location.

[0153] The spiral-protruding sidewalls can act as a pusher, helping to push the wastewater squeezed out by the extrusion rollers to the designated wastewater outlet.

[0154] Figure 14 The squeeze roller shown is equipped on a cleaning head with the wastewater outlet located on the side. Figure 15 The squeeze roller shown is equipped with a cleaning head located in the middle of the squeeze roller at the sewage outlet.

[0155] Figure 16 This is a schematic diagram of a threaded water guide. Figure 16 The water flows in the direction indicated by the arrows. Roller 111 rotates clockwise, and squeeze roller 121 rotates counterclockwise, forming a squeezed water trough at the angle between squeeze roller 121 and the roller. The clean water inlet is at the right end of the machine, and the water intake inlet is at the left end. To allow the water to flow quickly, a thread is added to squeeze roller 121. The side of this thread can push the water, making it flow faster and preventing accumulation and water level rise that could overflow the casing.

[0156] In the cleaning tool, where the sewage outlet and clean water outlet are located on opposite sides of the cleaning head, a secondary water tank is also installed next to the roller to accelerate water flow. Figure 17This is a schematic diagram of the two-stage water tank structure. The two-stage water tank 1410 has a certain angle. The inlet 1411 is slightly higher than the outlet 1412. After the squeezing unit 120 squeezes the water out of the roller 111, the water flows down the surface of the roller into the water tank. Due to the inclined angle of the water tank, the water flow rate in the tank is relatively fast, which improves the efficiency of cleaning the roller.

[0157] Figure 18 For those with Figure 14 Extrusion rollers and Figure 8 A schematic diagram of the internal structure of the roller cleaning tool. In this embodiment, the roller 111 has a first helical protrusion 111f, a squeeze roller 121, and a roller with a second helical protrusion 121f. This results in a stronger pushing force against water.

[0158] The extrusion unit interferes with the roller, causing the extruded water to remain between them, forming a water tank. Clean water can be sprayed onto the roller surface or injected into this water tank to clean the roller surface. Figure 19 The extrusion roller 121 interferes with the drum 111, forming a water tank A above the interference.

[0159] The location of the extrusion unit should take into account the formation location of the water tank. Figure 19 In the middle, when the drum 111 rotates clockwise, the squeeze roller 121 is located on the upper right side of the drum, and the water trough is formed in the right half of the drum. Figure 20 When the roller 111 rotates counterclockwise, and the squeezing roller 121 is positioned at the upper left, the water trough formed will be in the left half.

[0160] This disclosure refers to static extrusion as the extrusion unit remaining stationary relative to the housing. Static extrusion has a simple structure, and the extrusion unit can be directly integrated with the main machine structure, making it more convenient in the design process.

[0161] The extrusion unit can be fixed in place or rotate on its own.

[0162] The squeeze roller can be equipped with a power mechanism to actively squeeze water, or it can be unequipped and rotate by the friction of the roller.

[0163] A first motor can be fixed on the housing of the cleaning head. The first motor is connected to the extrusion roller and drives the extrusion roller to rotate.

[0164] When the roller is also equipped with a drive motor, the drive motor rotates in the opposite direction to the first motor. This saves the most power, and both the drive motor and the first motor can be selected from motors under 10W, which can achieve the cleaning of ordinary household cleaning tools, and is noiseless, environmentally friendly.

[0165] Of course, the drive motor and the first motor can also rotate in the same direction. The rotational speeds of the first motor and the drive motor are generally inversely proportional to the diameters of the extrusion roller and the drum. In this way, the linear velocities at their contact points are the same, which saves the most power.

[0166] When the speed of the first motor is greater than that of the drive motor, the water-squeezing effect of the extrusion roller is better than in the above cases. However, the energy consumption of the first motor is relatively increased.

[0167] When the speed of the first motor is less than the speed of the drive motor, the squeezing effect of the squeezing roller is better than when the squeezing roller does not rotate.

[0168] Examples of cleaning units

[0169] The cleanup unit disclosed herein can take many forms.

[0170] Roller Brush Assembly Example

[0171] Figure 16 , Figure 18 , Figure 19 , Figure 20 The cleaning unit is a roller brush assembly. As shown in the figure, the roller brush assembly 131 includes a roller brush shaft 131b and brush bristles 131a. The brush bristles 131a are disposed on the circumferential surface of the roller brush shaft 131b. Figure 16 The bristles shown are arranged in a V-shape. Figure 18 The displayed bristles are arranged in a straight line along the generatrix. The roller brush assembly consists of bristles mounted on a plastic roller brush shaft, which can be hollow or solid, depending on the specific structural implementation. The roller brush has 6-8 groups of bristles evenly distributed.

[0172] The brush roller can be driven by a motor: the brush roller shaft 131b is connected to a third drive motor via a coupling.

[0173] To achieve the rotation of the roller brush.

[0174] The arrangement of the roller brush and the roller can take many forms, but the main purpose is to achieve the above-mentioned functions.

[0175] The roller brush assembly can be used in all types of cleaning tools mentioned in this disclosure.

[0176] Straight brush example

[0177] Figure 21 The cleaning unit shown is a straight brush 132. The straight brush 132 is fixed to the housing of the cleaning head. Figure 21The working process of the cleaning tool shown is as follows: After the roller 111 crushes the garbage, the water content of wet or sticky garbage on the ground is absorbed by the unsaturated sponge layer of the roller. For solid garbage, the sponge layer of the roller deforms, wraps around it, and then rolls it up. After passing through the track of the shovel bar 112 and reaching the highest point of the shovel bar, the solid garbage falls into the garbage box 141 at the bottom under the rebound of the sponge layer and the action of gravity without relative compression. The garbage box 141 is equipped with a straight row of bristles 132 at the top, the length of which is the same as the length of the roller 111. The bristles are evenly distributed and their function is to sweep away the lint, dust, and other fine garbage adhering to the roller, minimizing the amount of garbage entering the water tank. This structure saves space, reduces costs, and can achieve a good cleaning effect.

[0178] Straight brushes can be used with all types of cleaning tools mentioned in this disclosure.

[0179] Scraper assembly embodiment

[0180] In situations involving sticky waste, using rolling or straight brushes to clean the rollers can lead to the sticky substances adhering to the brushes, making final cleaning difficult. Therefore, this disclosure employs a scraper / scraper structure to scrape the sticky wet waste from the rollers into the waste bin. The specific implementation scheme is as follows... Figure 23 , Figure 3 , Figure 9 As shown, the cleaning unit is the scraper assembly 133.

[0181] Such as combination Figure 23 , Figure 3 and Figure 9 As shown, the scraper assembly 133 includes an elongated scraper bracket 133c for fixing to the cleaning head. A generally A-shaped section is provided on the scraper bracket 133c. Friction portion 133a and drainage portion 133b For ease of understanding, in Figure 23 In the coordinate system, the X-axis is called the length direction, the approximate Y-axis is called the width direction, and the approximate Z-axis is called the height direction.

[0182] The scraper assembly 133 is formed by extending the scraper bracket in the width direction. The drainage portion 133b is located at both ends of the scraper bracket and extends approximately along the height direction of the scraper bracket.

[0183] exist Figure 9 The cleaning tools shown include a roller 111, a motor 113a for driving the roller, a shovel 112, and a trash can 141.

[0184] The outer layer of the roller is made of absorbent sponge, and the inner layer is supported by hard rubber. The driving force at both ends or the center of the hard rubber can make the roller rotate.

[0185] A scraper bracket 133c is fixed above the trash can 141, close to the roller 111. The scraper assembly 133 is in close contact with the roller 111. Tip of friction portion interferes with surface of roller 0-0.5mm. The friction part 133a can peel off the loose dust and sticky debris remaining on the roller 111 from the roller, causing it to fall into the waste box 141. The drainage part 133b fits against the roller 111, pre-pressing it towards the center of the roller by about 0.5-3mm. Because the water tank for cleaning the roller is designed at the top, Drainage portion 133b acts to seal water This prevents water in the sink from flowing from both ends of the scraper into the trash can.

[0186] like Figure 23 As shown, the edge of the friction part 133a is toothed, which can better peel off the floating dust and sticky garbage attached to the roller from the roller.

[0187] Multiple alignment blocks are provided on the scraper bracket 133c at positions opposite to the friction part 133a and the drainage part 133b. Correspondingly, multiple recesses are provided on the cleaning head housing connected to the scraper bracket 133c. By engaging the alignment blocks with the recesses, the positions can be quickly aligned, improving assembly efficiency.

[0188] The friction part and drainage part can be made of the same material as the scraper bracket, or they can be made of different materials and then fixed together by bonding or other methods after they are molded separately. The scraper bracket can be fixed to the housing of the cleaning head by adhesive or secondary injection molding.

[0189] The scraper assembly can be used in all types of cleaning tools mentioned in this disclosure.

[0190] exist Figure 24 The cleaning tools shown also include a wastewater tank 211 and a clean water tank 231. The clean water tank 231 is located at one end of the mop handle 40 near the mop head. The clean water tank includes elongated clean water outlets 2311, which are aligned with the surface of the roller 111 between the squeeze roller 121 and the scraper assembly 133.

[0191] In other embodiments, the wastewater tank is connected to a wastewater outlet via a pipe, the outlet being located on the side of the housing near the squeeze roller and the scraper. The clean water tank is connected to a clean water outlet via a pipe, the outlet being located on another side near the squeeze roller and the scraper, with the clean water outlet at a greater height than the wastewater outlet. The drainage section of the scraper assembly is positioned precisely at both the clean water and wastewater outlets. In this embodiment, by utilizing the height difference between the clean and wastewater outlets, relying on the weight of the water to promote flow, and further guiding the water with the drainage section of the scraper assembly, water overflow from the water system can be better prevented.

[0192] Figure 22The cleaning unit shown is a combination of a scraper assembly and a straight brush. In this embodiment, the scraper assembly 133 is... Figure 23 The friction section of the scraper assembly shown replaces the straight-discharge brush 1331. A clean water outlet 2311 is provided on the squeezing unit, forming a straight-discharge clean water hole or a narrow clean water inlet. A wastewater tank 211 is located at the center of the cleaning head.

[0193] Additionally, there is a cleaning method using air blades. This is suitable for cleaning dry debris adhering to the rollers. Figure 22 By setting the position of the scraper assembly 133 and replacing it with an air outlet, the surface of the roller can be cleaned by blowing against the direction of the tangent, removing hair, paper scraps, and other debris.

[0194] Handheld embodiment

[0195] Equipped with a clean water tank:

[0196] The water supply unit 160 includes a water tank 231. In addition to the cleaning rod 301, extension rod 302, connecting structure 304, and hinge structure 305 mentioned above, the handheld part may also be equipped with a water tank.

[0197] One implementation method is as follows Figure 4 As shown. The clean water outlet 2311 of the clean water tank 231 faces the squeeze roller, and clean water flows down from the squeeze roller into the squeezing area to wash the surface of the roller 111.

[0198] Alternatively, another implementation method is as follows: Figure 1 As shown, the water tank 231 is fixed to the handheld part near the cleaning head, and purified water is connected to the cleaning head through a water pipe.

[0199] In another embodiment, a large water purification tank 231 may be provided. For example... Figure 25 As shown.

[0200] An ozone generator and an air pump can also be installed in the hollow cleaning rod to disinfect the water tank.

[0201] A power assist control system can also be integrated into the hollow cleaning rod to provide assistance for the cleaning tool to move forward or backward.

[0202] The components of the various cleaning tools disclosed herein can be combined according to requirements. Several examples of such combined cleaning tools are given below.

[0203] Example 1 of cleaning tools

[0204] The cleaning head of the cleaning tool in this embodiment includes a powered roller, and a water tank is installed in the cleaning head. A filter device is provided in the water circuit to prevent the water pump from becoming clogged.

[0205] Figures 9-18This is a schematic diagram of the structure of this embodiment. As shown in the figure, the cleaning head is assembled from front to back with a roller 111, a strip-shaped protrusion 126, a herringbone scraper 133, a trash box 141, and a water tank 210.

[0206] Unlike Embodiment 1 of the cleaning tool, the roller in this embodiment is driven by a motor 113a. One end of the motor 113a is mounted on the housing 500 via a rotating shaft 113c. The outer diameter of the motor 113a is fitted inside the roller, and the other end of the motor 113a is fixed to the rigid rubber of the roller, causing the roller to rotate with the outer diameter of the motor (equivalent to the output shaft of the motor). The roller in this embodiment can be a flat roller or a threaded roller, and the roller is detachably mounted on the housing via a press-and-telescopic device.

[0207] In this embodiment, the water tank 210 is located at the end of the cleaning head and is circulated by a water pump. The water tank is divided into a wastewater tank and a clean water tank by a removable filter box or filter screen in the middle. The clean water tank is connected to a clean water outlet on the housing via a pipeline. The clean water outlet guides clean water into the cleaning zone formed by the strip-shaped protrusions 126, the scraper 133, and the surface of the roller to clean the roller surface. The wastewater from the cleaning process, as well as the wastewater squeezed out by the strip-shaped protrusions 126, flows into the wastewater tank through the wastewater inlet on the opposite side via a pipeline. The wastewater in the water tank is filtered by the filter screen or filter box and enters the clean water tank, where it is pumped back to the cleaning zone by the water pump, thus repeating the cycle.

[0208] One-way valves are installed at the inlet and outlet of the water tank, and corresponding pins are installed on the housing. When the water tank is removed from the housing, the one-way valves close to prevent water from overflowing. During installation, the pins press against the one-way valves to ensure unobstructed water flow.

[0209] Filters or filter boxes can filter out dry or small debris that may accidentally enter the water system, preventing the water pump from getting clogged and extending the life of the cleaning head.

[0210] This implementation can also integrate an ozone generator into the mop handle, which generates ozone and introduces it into the water tank, so that the water in the tank contains ozone. This prevents bacteria from growing in the water for a period of time and prevents mold growth. Furthermore, using ozone-containing water to clean the roller and then the roller cleans the floor can disinfect and sterilize the floor.

[0211] The strip-shaped protrusion 126 in this example can be replaced with a threaded extrusion roller for stronger water flow guidance.

[0212] This implementation uses a power-driven roller, making operation more convenient.

[0213] In addition, the roller and water tank in this embodiment are detachable for easy maintenance and cleaning; the filter device keeps the water system clean and has a longer service life; ozone has a disinfecting effect on cleaning tools and the ground, resulting in a more thorough cleaning.

[0214] Example 2 of cleaning tools

[0215] This embodiment features an assist system, making it suitable for larger cleaning tools.

[0216] Figures 25 to 29 This is a schematic diagram of the structure of this embodiment. As shown, the cleaning tool includes a cleaning head 10 with a motor-driven assist wheel assembly 11 at the bottom, and a hollow mop handle 40, which is hinged to the mop head. A large-capacity clean water tank is fitted to the near-ground end of the mop handle. Because the water tank is relatively heavy, to save effort and facilitate operation, the mop handle 40 includes a handle 41 with an assist recognition structure. The assist recognition structure is electrically connected to the motor of the assist wheel assembly, controlling the direction of the motor 22. The cleaning head includes one of the sweeping, squeezing, cleaning, dry waste collection, and wastewater collection units from the embodiments described above, which will not be described in detail here.

[0217] The handle 41 with a power-assisted recognition structure includes: a control unit, a pressure sensor 410, a sensor rod 412, a rod sleeve 415, and a handle sleeve 413. The pressure sensor 410 is installed between the mop handle end face and the handle sleeve 413. One end of the sensor rod 412 abuts against the pressure sensor 410, and the other end is fixed inside the handle sleeve 413. The pressure sensor is signal-connected to the control unit, which controls the direction of the motor. The inner diameter of the rod sleeve 415 is fixed to the circumferential surface of the sensor rod 412, one end is fixed to the mop handle end face, and the outer circumferential surface slides within the handle sleeve 413.

[0218] The method of controlling the assist is as follows: During operation, the pressure sensor detects the force on the handle; the control unit compares the detected value with the magnitude of the force previously applied to the handle to determine the change in force on the handle: when the force increases, the motor is controlled to rotate forward and the speed is increased, the assist wheel assembly rotates forward faster, and the cleaning tool moves forward faster; when the force decreases, the motor is controlled to rotate forward and the speed is decreased, the assist wheel assembly rotates forward but the speed is reduced, and the cleaning tool moves forward at a slower speed; when the force becomes negative, the motor is controlled to rotate in reverse, the assist wheel assembly rotates backward, and the cleaning tool moves backward.

[0219] The disclosure also relates to an apparatus for implementing the above method, the apparatus comprising at least a detection module, a judgment module, and an execution module. The detection module detects the force applied to the handle and sends the result to the judgment module. The judgment module receives the detected value, compares the magnitude and direction of the detected value with the force previously applied to the handle, determines the change in force on the handle, and sends the comparison result to the execution module. The execution module controls the rotation direction of the control motor based on the judgment result received from the judgment module.

[0220] In this embodiment, the assist wheel assembly 11 is located at the rear of the cleaning head, making the cleaning tool's center of gravity more stable. The assist wheel assembly 11 includes: a wheel 12, a drive shaft 13, a fixing cover 14, and a fixing cover cap 15; the drive shaft 13 passes through the hole in the center of the fixing cover cap 15 and the wheel 12, and is connected to the output shaft of the motor 22. The fixing cover 14 and the fixing cover cap 15 form a space to accommodate the wheel 12. The fixing cover 14 and the fixing cover cap 15 are fixed together by fasteners, and then fixed to the housing 500 at the bottom of the cleaning head by fasteners.

[0221] In this embodiment, a large-capacity clean water tank is installed at the near-ground end of the mop handle.

[0222] The cleaning head disclosed herein includes a wastewater tank 211, a squeezing roller 121, a drum 111, a brush assembly 131, and a dry waste container 141 arranged from front to back. The arrangement of the components can be configured according to the above description of this disclosure.

[0223] This invention utilizes "water and dust circulation" cleaning technology to achieve self-cleaning of the roller, and combines sweeping, mopping, washing, and wringing, which greatly facilitates users and achieves excellent cleaning results.

[0224] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

[0225] Finally, it should be noted that the above descriptions are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A cleaning tool, comprising a cleaning head, characterized in that, The cleaning head includes a housing and a sweeping unit, a squeezing unit, a cleaning unit, and a dry waste collection unit mounted on the housing. The cleaning unit is a scraper assembly. The sweeping unit sweeps the ground, and the cleaning unit separates and collects solid waste attached to the surface of the sweeping unit. The squeezing unit is used to squeeze the sweeping unit to form a water-squeezing zone. The scraper assembly includes a friction part and a drainage part. The end of the friction part interferes with the surface of the sweeping unit, and the drainage part is attached to the sweeping unit to seal in water. Preferred, The scraper assembly includes a scraper bracket, which is provided with a friction part and a drainage part. The friction head removes the loose dust and sticky debris adhering to the sweeping unit. The drainage section is also used to guide water to prevent the squeezed-out water from overflowing into the dry waste collection unit; Preferably, the cleaning head is equipped with a power-assisted wheel assembly, which includes a wheel, a drive shaft, a fixing cover, and a fixing cover cover. The drive shaft passes through the hole in the center of the fixed cover and the wheel, and connects to the output shaft of the motor; The retaining cover and retaining cover lid form a space to accommodate the wheels; the retaining cover and retaining cover lid are fixed to the bottom of the cleaning head; Preferably, the power wheel assembly is located at the rear of the cleaning head; Preferably, the cleaning tool also includes a handheld part, which includes: The cleaning rod has a hinge structure at its end near the cleaning head, which is pivotally hinged to the cleaning head. The handle is also pivotally hinged to the cleaning head via the hinge structure. A water supply unit is provided on the cleaning rod to supply clean water to the cleaning head. Preferably, the purified water supply unit includes a purified water tank, the purified water outlet of the purified water tank faces the squeezing unit, and purified water flows downward from the squeezing unit into the squeezing area to rinse the surface of the squeezing unit.

2. The cleaning tool as described in claim 1, characterized in that, The water tank is located at one end of the cleaning rod near the cleaning head. The shell has a water inlet, which is arranged in a long strip. The water outlet of the water tank is connected to the water inlet through a pipe.

3. The cleaning tool as described in claim 1, characterized in that, The cleaning rod is equipped with an ozone generator and an air pump to disinfect the water tank.

4. The cleaning tool as described in claim 1, characterized in that, The cleaning pole is hollow inside and equipped with a power assist control system. The cleaning pole extends upward to a handle, which has a power assist recognition structure. Preferably, the cleaning head is equipped with a drive device, the power assist identification structure is electrically connected to the power assist control system, the power assist control system is electrically connected to the drive device to control the direction of the drive device, the drive device has a motor, and the power assist control system can control the drive device to drive the power assist wheel assembly to make the cleaning head move forward or backward. Preferably, the cleaning tools also include: The extension rod, connected to the cleaning rod via a connecting structure, extends the overall length of the handle.

5. The cleaning tool as described in claim 1, characterized in that, The sweeping unit includes a roller and a roller drive mechanism that drives the roller to rotate. The roller is mounted at the front end of the housing. Preferably, the sweeping unit further includes a roller drive mechanism, and the roller drive mechanism drives the roller to rotate through the roller drive mechanism; Preferably, the roller includes a rigid rubber core located at the axis and a sponge layer wrapped around and fixed to the circumferential surface of the rigid rubber. Preferably, the end of the hard rubber can be fixed to the housing by a connector, and the roller drive mechanism drives the hard rubber to rotate around its axis, thereby causing the sponge layer to rotate. Preferably, the mopping unit also includes a pressing and telescopic device for fixing one end of the hard rubber. The pressing and telescopic device includes a button, a spring and a stop block. The stop block can be engaged with the housing. When the button is pressed, the spring is compressed and the stop block is retracted. When the button is released, the spring returns to its original position and the stop block is reset. When the button is pressed, the button compresses the spring, causing the stop block to move away from the position that blocks the hard rubber. At this time, the end of the hard rubber can be moved out of the roller mounting groove on the housing. Preferably, the housing has a recess, and the stop block can engage with the housing in the recess; Preferably, the roller drive mechanism includes a drive motor, one end of which is fixed to the housing via a fixed base and a rotating shaft, and the other end can rotate around the rotating shaft at a certain angle; One end of the rigid plastic hollow cylinder is fitted onto the drive motor; After pressing the button to move the roller out of the roller mounting slot on the housing, the roller drives the drive motor to rotate around the shaft, and the roller can be pulled out from the drive motor. Preferably, the roller has a structure with both ends sealed, and the drive motor is connected to the roller through a connector; Preferably, the sponge layer is a single-layer sponge layer.

6. The cleaning tool as described in claim 5, characterized in that, The sponge layer of the roller has spiral protrusions.

7. The cleaning tool as described in claim 5, characterized in that, The sweeping unit also includes a shovel, which is fixed to the housing and has an arc-shaped working surface. The arc-shaped working surface forms a uniformly spaced gap with the outer circumference of the roller. Preferably, the scraper assembly is in close contact with the roller, and the scraper assembly further includes: The scraper support, which is long and extends in the width direction, is fixed to the shell and is located above the dry waste collection unit, close to the drum. The friction part can peel off the floating dust and sticky waste remaining on the drum. The drainage part is located at both ends of the scraper support, one end is close to the drum and pre-pressed towards the center of the drum, and the other end extends along the height of the scraper support to prevent water squeezed out from the drum from flowing from both ends of the scraper assembly into the dry waste collection unit. The friction part and the drainage part are arranged in a herringbone shape on the scraper support. Preferably, the edge of the friction part is toothed; Preferably, the scraper bracket is provided with multiple alignment blocks at the position opposite to the friction part and the drainage part, and the housing is provided with multiple recesses corresponding to the alignment blocks; Preferably, the friction part, the drainage part, and the scraper bracket are fixed together by adhesive bonding after each part is formed; or, the scraper bracket can be fixed to the housing by adhesive bonding or secondary injection molding. Preferably, the friction part interferes with the surface of the roller by 0-0.5mm; Preferably, the flow guide section is pre-pressed towards the center of the roller by 0.5-3mm; Preferably, the friction part, the drainage part, and the scraper bracket are made of different materials; Preferably, the extrusion unit interferes with the roller, and the extruded water exists between the two to form a water tank. The extrusion unit includes: The mounting base is connected to the housing and secures the extrusion unit to the housing. The strip-shaped protrusions are connected to the fixed base, and the sponge layer is squeezed to squeeze the sewage out of the roller surface and into the water tank. Preferably, the extrusion unit is a cylindrical extrusion roller, with both ends of the extrusion roller fixed to the housing; Preferably, the surface of the extrusion roller has spiral protrusions, which help push the wastewater extruded by the extrusion roller to the wastewater outlet; Preferably, the extrusion roller includes a roller body, which is cylindrical, and the extrusion roller is mounted on the housing through both ends of the roller body, and the roller body can rotate.

8. The cleaning tool as described in claim 7, characterized in that, The surface of the roller body has a second spiral protrusion, which helps to push the sewage squeezed out by the extrusion roller to the sewage outlet; Preferably, there is one second spiral protrusion that extends spirally from one end of the extrusion roller to the other end; or, there are two second spiral protrusions that start from the same generatrix at both ends of the roller body and extend spirally toward the middle of the roller body in opposite spiral directions.

9. The cleaning tool as described in claim 8, characterized in that, The second spiral protrusion consists of two lines. A straight protrusion parallel to the roller axis is provided in the middle of the roller body. The straight protrusion can be connected with the two spiral protrusions to form a closed sidewall on the surface of the roller body. The sidewall helps to push the sewage squeezed out by the extrusion roller to the sewage outlet. Preferably, a first motor is fixed on the housing of the cleaning head, and the first motor is connected to the extrusion roller to drive the extrusion roller to rotate.

10. The cleaning tool as described in claim 7, characterized in that, As the roller rolls across the ground, the dry waste particles on the ground compress and deform the sponge layer. The sponge layer wraps around the dry waste particles through deformation, causing the dry waste particles to separate from the ground. When the roller rotates to the position of the shovel bar, the particles of dry waste leave the ground and are squeezed by the shovel bar; When the roller rotates past the shovel bar and reaches the entrance of the dry waste collection unit, the sponge layer recovers its deformation due to the loss of pressure from the shovel bar, releasing the dry waste particles it encloses and causing them to bounce into the dry waste collection unit. Preferably, after the roller passes through the wet waste, the sponge layer between the grounding point and the squeezing point contains sewage. After being squeezed by the squeezing unit, the sewage leaves the sponge layer in the squeezing zone, so that the water content of the sponge layer passing through the squeezing point is not saturated, and it can continue to absorb water when it rotates back to the grounding point and contacts the ground.

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