Cleaning head and cleaning tool

Abstract

The present application discloses a cleaning head, comprising a housing, a roller, a scraper, and a water tank. The housing is equipped with an extrusion unit and a scraper, and the roller is removably snap-fitted to the housing. The scraper, extrusion unit, and roller surface together form a cleaning area. The water tank is located at the rear end of the housing and is divided into a sewage box and a clean water box by a detachable filter device in the middle. The clean water box directs clean water into the cleaning area. Sewage after cleaning the roller and sewage squeezed out of the roller by the extrusion unit flow into the sewage box. After passing through the filter device, the sewage enters the clean water tank and is pumped back to the cleaning area, repeating this cycle. As the roller rolls forward, it uses its own viscosity and elasticity to throw garbage into the garbage box. After throwing out the dry garbage, the roller surface continues to be washed and soaked by clean water in the cleaning area. The soaked roller surface continues to rotate downward to continue wet mopping and cleaning the ground. The present application also discloses a cleaning tool equipped with the cleaning head, which can clean dry, wet, and sticky garbage.

Description

[0001] This application is a divisional application of Chinese patent application number 202010075477.1, and the invention name is “Cleaning tool, method for controlling power assistance and device for implementing the method”, the contents of which are incorporated herein by reference. Technical Field

[0002] The present application relates to the field of cleaning equipment, and in particular to a cleaning head and a cleaning tool for cleaning floors. Background Art

[0003] Usually people clean the floor, the tools used are brooms, mops, floor wipes, etc., these tools mainly rely on people's manual operation to complete the cleaning work. With the advancement of technology, people's requirements for floor cleaning tools are gradually increasing.

[0004] The first to appear was the vacuum cleaner, whose working principle is "air-dust circulation", that is, it relies on electricity to generate negative pressure to absorb garbage, dust, etc. on the ground. However, due to the limitations of its working principle, the vacuum cleaner cannot clean some garbage and stains that are firmly attached to the ground. Once liquid enters the vacuum cleaner, it can easily cause damage to the vacuum cleaner. Therefore, a new floor cleaner has now appeared. This new floor cleaner drives the cleaning cylinder (cleaning roller) to wipe the ground through the operation of the motor. The cleaning cylinder usually uses a sponge cylinder or a scouring pad. At the same time, the floor cleaner is also equipped with a water supply system and a water tank to clean the cleaning cylinder, thereby perfectly cleaning the ground. After cleaning, the sponge cylinder usually uses a water squeezing piece to remove the water inside, otherwise the water will flow to the ground when the sponge cylinder is squeezed against the ground.

[0005] For heavier cleaning tools, people usually use motor drives. However, motor drive structures are similar to those of motor vehicles, which are complex and expensive, making them unsuitable for small cleaning tools. Small cleaning tools are mostly operated by the elderly and women, and the control is too complicated, which is not suitable for these consumer groups.

[0006] Moreover, the garbage in the home and kitchen is a mixture of dry and wet garbage, and may also contain various soups (syrup, ketchup, etc.) and other sticky garbage. Existing cleaning tools are powerless and helpless against sticky garbage, especially the mixture of dry garbage, wet garbage and sticky garbage.

[0007] The contents of the background technology section are merely technologies known to the public and do not necessarily represent the existing technologies in this field. Summary of the Invention

[0008] In view of at least one of the defects in the prior art, the present invention provides a cleaning tool and a method for controlling the power assisting function, which helps to better control the power assisting function output of the cleaning tool and make the use of the cleaning tool more humane.

[0009] In a first aspect, the present application provides a cleaning head for cleaning a floor, comprising:

[0010] The shell is equipped with an extrusion unit and is provided with a clean water outlet and a sewage inlet;

[0011] The roller rotates to clean the floor and is detachably connected to the housing;

[0012] a scraper bar mounted on the housing to form a cleaning area together with the extrusion unit and the drum surface;

[0013] A water tank is provided at the rear end of the housing and is divided into a sewage box and a clean water box by a detachable filter device in the middle; the clean water box is connected to the clean water outlet via a pipeline, and the clean water outlet directs clean water into the cleaning area; the sewage after cleaning the drum and the sewage squeezed out of the drum by the extrusion unit flow from the sewage inlet through the pipeline into the sewage box, and the sewage flows through the filter device and enters the clean water tank, and is pumped to the cleaning area again, and this cycle repeats;

[0014] Among them, as the drum rotates, the drum surface after throwing away the dry garbage continues to be washed and soaked by clean water in the cleaning area, and the soaked drum surface continues to rotate downward to continue wet mopping to clean the ground.

[0015] In one or some embodiments, the cleaning head further comprises:

[0016] The motor drives the drum to rotate.

[0017] In one or some embodiments, one end of the motor is mounted on the housing via a rotating shaft, and the other end of the motor is fixed to the hard rubber of the roller. The outer diameter of the motor is sleeved inside the roller, so that the roller rotates along with the outer diameter of the motor.

[0018] In one or some embodiments, the other end of the hard rubber is fixedly connected to a pressing and telescopic device, and the roller is detachably connected to the shell through the pressing and telescopic device.

[0019] In one or some embodiments, the cleaning head further comprises:

[0020] A water pump is connected between the drum and the water tank through a water channel, and the water channel includes the pipeline and the filtering device.

[0021] In one or some embodiments, the filtering device is a filter box or filter screen that is detachable in the water tank.

[0022] In one or some embodiments, the water tank has an inlet and an outlet, one-way valves are installed at the inlet and outlet, and ejector pins are installed at the housing corresponding to the inlet and outlet.

[0023] In one or some embodiments, when the water tank is removed from the shell, the one-way valve is closed to prevent water from overflowing; after the water tank is installed in the shell, the ejector pin pushes against the one-way valve to keep the water passage unobstructed.

[0024] In one or some embodiments, the extrusion unit comprises:

[0025] A fixing seat, connected to the housing, fixing the extrusion unit on the housing;

[0026] The strip-shaped protrusion is connected to the fixing seat and presses the drum to squeeze the sewage from the surface of the drum into the cleaning area.

[0027] In one or some embodiments, the extrusion unit is a cylindrical extrusion roller, and both ends of the extrusion roller are fixed on the shell.

[0028] In one or some embodiments, the surface of the squeezing roller is provided with spiral protrusions, and the protrusions help push the sewage squeezed out by the squeezing roller to the sewage outlet.

[0029] In one or some embodiments, the squeezing roller includes a roller body, the roller body is cylindrical, the squeezing roller is mounted on the shell through both ends of the roller body, and the roller body is rotatable.

[0030] In one or some embodiments, the surface of the roller body is provided with spiral protrusions, and the spiral protrusions help push the sewage squeezed out by the squeezing roller to the sewage outlet.

[0031] In one or some embodiments, the number of the spiral protrusion is one, which spirally extends from one end of the squeezing roller to the other end.

[0032] In one or some embodiments, there are two spiral protrusions, and the spiral protrusions start from the same generatrix at both ends of the roller body and spirally extend toward the middle of the roller body in opposite spiral directions.

[0033] In one or some embodiments, there are two spiral protrusions, and a straight protrusion parallel to the axis of the roller body is provided in the middle of the roller body. The straight protrusion can be connected with the two spiral protrusions to form a closed side wall on the surface of the roller body. The side wall helps push the sewage squeezed out by the squeezing roller to the sewage outlet.

[0034] In one or some embodiments, the cleaning head further comprises:

[0035] The power-assist wheel assembly is mounted on the bottom of the housing and can move the cleaning head forward or backward.

[0036] In one or some embodiments, the cleaning head further comprises:

[0037] a trash box housed in the housing and disposed behind the drum;

[0038] When the drum rolls forward, the garbage is thrown into the garbage box by utilizing its own viscosity and elasticity.

[0039] In a second aspect, the present application further discloses a cleaning tool, comprising:

[0040] The cleaning head according to the first aspect;

[0041] The handheld portion is pivotally connected to the cleaning head.

[0042] In one or some embodiments, the handheld portion comprises:

[0043] A cleaning rod is hollow inside and is provided with a power-assistance control system. A handle extends upward from the cleaning rod and has a power-assistance identification structure;

[0044] A hinge structure is provided at the end of the cleaning rod close to the cleaning head and is pivotally connected to the cleaning head;

[0045] a clean water supply unit, provided on the cleaning rod, for supplying clean water to the cleaning head;

[0046] The power-assist control system can control the driving device in the cleaning head to drive the power-assist wheel assembly to move the cleaning head forward or backward.

[0047] In one or some embodiments, the power-assistance identification structure is electrically connected to the power-assistance control system, and the power-assistance control system is electrically connected to the driving device to control the steering of the driving device.

[0048] In one or some embodiments, the power-assisted identification structure includes: a pressure sensor, a sensor push rod, and a handle sleeve;

[0049] The pressure sensor is installed between the end surface of the mop rod and the handle sleeve; one end of the sensor push rod abuts against the pressure sensor, and the other end is fixed in the handle sleeve. The pressure sensor is electrically connected to the power-assisting control system.

[0050] In one or some embodiments, the power-assisted identification structure further includes a push rod sleeve, which is fixed to the circumferential surface of the sensor push rod, one end of which is fixed to the end surface of the mop rod, and the outer circumferential surface is slidably sleeved in the handle sleeve.

[0051] In one or some embodiments, the power-assisted wheel assembly includes a wheel, a drive shaft, a fixed cover, and a fixed cover cover; the drive shaft passes through the fixed cover cover and the hole in the center of the wheel and is connected to the output shaft of the motor; the fixed cover and the fixed cover cover form a space to accommodate the wheel; the fixed cover and the fixed cover cover are fixed to the bottom of the cleaning head.

[0052] In one or some embodiments, the clean water supply unit includes a clean water tank, the clean water outlet of the clean water tank faces the extrusion unit, and the clean water flows downward from the extrusion unit into the water squeezing area to flush the surface of the extrusion unit.

[0053] In one or some embodiments, the clean water tank is arranged at one end of the cleaning rod close to the cleaning head, and a clean water outlet is provided on the shell, which is arranged in a long strip shape, and the clean water outlet of the clean water tank is connected to the clean water outlet through a pipeline.

[0054] In one or some embodiments, the cleaning rod is provided with an ozone generator and an air pump to disinfect the clean water tank.

[0055] In one or some embodiments, the handheld portion further comprises:

[0056] The extension rod is connected to the cleaning rod through a connecting structure, so as to extend the overall length of the handheld part.

[0057] The present application discloses a cleaning head, comprising a shell, a roller, a scraper and a water tank; the shell is equipped with an extrusion unit and a scraper, and the roller is detachably connected to the shell; the scraper, the extrusion unit and the surface of the roller together form a cleaning area; the water tank is arranged at the rear end of the shell, and the water tank is divided into a sewage box and a clean water box by a detachable filtering device in the middle; the clean water box introduces clean water into the cleaning area; the sewage after cleaning the roller and the sewage squeezed out of the roller by the extrusion unit flow into the sewage box, and the sewage flows through the filtering device and enters the clean water tank, and is pumped to the cleaning area again, and this cycle repeats; when the roller rolls forward, it uses its own viscosity and elasticity to throw the garbage into the garbage box, and after throwing out the dry garbage, the surface of the roller continues to be washed and soaked by clean water in the cleaning area, and the soaked surface of the roller continues to rotate downward to continue wet mopping to clean the ground.

[0058] The beneficial effects of this application are as follows:

[0059] When using the cleaning head and cleaning tool disclosed herein to clean the floor, the wet outer sponge of the roller contacts the floor without raising dust, providing the same effect as a conventional mop and preventing secondary contamination. The outer sponge of the roller and the shovel blade cooperate to completely collect solid waste. The cleaning unit separates and collects solid waste attached to the outer sponge, keeping the surface of the outer sponge free of solid waste. The roller absorbs wet waste from the floor, and when the water within it is squeezed out, it peels off and dilutes sticky waste attached to the roller surface. The water-soluble portion is carried into the sewage 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 in the outer sponge, keeping the outer sponge unsaturated, allowing the cleaning tool to continuously clean liquid waste. The clean water supply unit and the squeezing unit work together to keep the roller in contact with the floor clean at all times. The cleaning head and cleaning tool disclosed herein can clean sticky wet waste, especially mixed waste, and can separate dry and wet waste, continuously keeping the outer sponge surface of the roller clean.

[0060] In the embodiment of the cleaning tool disclosed herein, the filter screen or filter box can filter dry garbage or fine garbage that accidentally enters the water channel, prevent the water pump from being blocked, and extend the service life of the cleaning head. This embodiment can also integrate an ozone generator in the mop rod, and pass the generated ozone into the water tank, so that the water in the sink contains ozone, and the water will not breed bacteria for a period of time, preventing the water from becoming moldy; and, using ozone-containing water to wash the drum, and the drum to clean the floor, can have the effect of disinfecting and sterilizing the floor. The strip-shaped protrusions of this example can be replaced with a threaded extrusion roller, which has a stronger guiding effect on the water flow. This embodiment uses a power-driven drum, which makes operation more convenient. In addition, the drum and water tank of this embodiment can be disassembled for easy maintenance and cleaning; the use of a filter device keeps the water channel clean and has a longer service life; ozone has a disinfecting effect on the cleaning tool and the floor, and the cleaning is more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The accompanying drawings, which constitute part of this disclosure, are used to provide a further understanding of the disclosure. The exemplary embodiments of the disclosure and their descriptions are used to explain the disclosure and do not constitute an improper limitation of the disclosure. In the accompanying drawings:

[0062] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the cleaning tool disclosed herein;

[0063] Figure 2 for Figure 1 Exploded view of the cleaning head;

[0064] Figure 3 for Figure 1 Schematic diagram of the internal structure of the cleaning head;

[0065] Figure 4 for Figure 1 Schematic diagram of the cleaning head cross section;

[0066] Figure 5 for Figure 1 Schematic diagram of the bottom surface of the cleaning head;

[0067] Figure 6 for Figure 1 Schematic diagram of the cleaning head side;

[0068] Figure 7 A schematic diagram of the squeezing zone is formed;

[0069] Figure 8 This is a schematic diagram of the drum structure according to an embodiment of the present disclosure;

[0070] Figure 9 is a cross-sectional view of a cleaning tool with the above-mentioned roller;

[0071] Figure 10 for Figure 9 Schematic diagram of the side appearance;

[0072] Figure 11 is a perspective schematic diagram of an embodiment of a roller;

[0073] Figure 12 This is a schematic diagram of the drum disassembly state;

[0074] Figure 13 for Figure 12 Schematic diagram from another perspective;

[0075] Figure 14 A schematic structural diagram of an embodiment of a squeezing roller;

[0076] Figure 15 It is a schematic structural diagram of another embodiment of the squeezing roller;

[0077] Figure 16 A schematic diagram of a threaded water guide in one embodiment;

[0078] Figure 17 This is a schematic diagram of the secondary water tank structure;

[0079] Figure 18 For Figure 14 Squeeze roller and Figure 8 Schematic diagram of the internal structure of the drum cleaning tool;

[0080] Figure 19 Schematic diagram of a water trough formed by the interference of the squeezing roller and the drum in one embodiment;

[0081] Figure 20 A schematic diagram of another embodiment of the water trough formed by the interference between the squeezing roller and the drum;

[0082] Figure 21It is a schematic diagram of the structure of the cleaning unit with a straight brush;

[0083] Figure 22 The schematic diagram of the structure of the cleaning unit is a combination of a scraper assembly and a straight brush;

[0084] Figure 23 A schematic structural diagram of a scraper strip according to an embodiment;

[0085] Figure 24 It is a structural schematic diagram of an embodiment including a sewage tank and a clean water tank;

[0086] Figure 25 A schematic diagram of the structure of a cleaning tool with a power assist system;

[0087] Figure 26 for Figure 25 A schematic cross-sectional view of a cleaning head;

[0088] Figure 27 An exploded view with handles to help identify the structure;

[0089] Figure 28 This is a schematic diagram of the power-assisted wheel assembly in the assembled and rotating state;

[0090] Figure 29 This is an exploded view of the power-assisted wheel assembly structure. DETAILED DESCRIPTION

[0091] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be considered as illustrative in nature and not restrictive.

[0092] In the description of the present disclosure, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for the purpose of facilitating the description of the present disclosure and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present 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 the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of the present disclosure, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0093] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, removable, or integral connections; mechanical, electrical, or intercommunication connections; direct or indirect connections through an intermediary; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0094] In this disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact via another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly above or diagonally above the second feature, or may simply mean that the first feature is at a lower level than the second feature.

[0095] The disclosure below provides many different embodiments or examples for realizing different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0096] The preferred embodiments of the present disclosure are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0097] The cleaning tool disclosed herein is used for cleaning floors, particularly small, smooth and flat floors such as floors in homes and kitchens. The cleaning tool disclosed herein is particularly suitable for cleaning mixed garbage containing dry garbage, wet garbage, and viscous materials such as noodles, porridge, and tomato sauce.

[0098] The dry garbage mentioned in the present disclosure specifically refers to granular garbage, such as fruit peels, melon seed shells, rice grains, paper scraps, etc.

[0099] Wet garbage refers to liquid garbage, such as water, beverages, etc.

[0100] Sticky wet garbage includes soup, stew, porridge, ketchup, chocolate sauce and other semi-solid garbage with a certain viscosity.

[0101] Other garbage such as dust, ground marks, etc. are also cleaning objects disclosed in the present invention.

[0102] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the cleaning tool disclosed herein. Figure 2 This is an exploded view of the cleaning head; Figure 3 This is a schematic diagram of the internal structure of the cleaning head; Figure 4 is a cross-sectional schematic diagram, Figure 5 This is a schematic diagram of the bottom of the cleaning head. Figure 6 This is a schematic diagram of the side of the cleaning head. Figures 1 to 6 As shown, the cleaning tool of the present disclosure includes a connected cleaning head and a handheld portion. The handheld portion 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 uses the handheld portion to move the cleaning head across the ground surface to clean up various types of debris scattered on the ground.

[0103] The cleaning head of the cleaning tool of the present disclosure includes a housing 500, with a cleaning module mounted at the bottom and inside the housing. The cleaning module separates garbage from the ground and separates it inside the housing. Wheels 190 are mounted on the bottom surface of the housing to reduce contact between the non-cleaning module and the ground, making dragging easier.

[0104] The cleaning module includes a sweeping unit 110 arranged at the bottom of the shell, a squeezing unit 120 arranged parallel to the sweeping unit, a dry garbage collecting unit 150 arranged behind the sweeping unit for storing dry garbage, a cleaning unit 130 arranged at the entrance of the dry garbage collecting unit 150, a sewage collecting unit 140 and a clean water supply unit 160.

[0105] The sweeping unit 110 includes a roller 111, a shovel bar 112, a roller driving mechanism 113 and a roller transmission mechanism 114. The roller driving mechanism drives the roller 111 to move in a direction opposite to the direction of the roller. Figure 4 The shovel bar 112 is fixed on the housing 500 and has an arc-shaped working surface. A gap of uniform distance is formed between the arc-shaped working surface and the outer circumference of the roller 111.

[0106] The roller 111 comprises an inner layer of hard rubber and a sponge layer wrapped around the hard rubber. The ends of the hard rubber are secured to the housing 500 via bearings or other connectors. The roller drive mechanism 113, through the roller transmission mechanism 114, drives the hard rubber to rotate about its axis, which in turn drives the sponge layer to rotate, causing the surface of the sponge layer to undergo a circular motion.

[0107] As the drum 111 rolls across the ground, the dry waste particles on the ground compress and deform the sponge layer. This deformation then wraps around the dry waste particles, separating them from the ground and allowing them to rotate with the drum 111. When the drum 111 reaches the position of the scooping bars 112, the dry waste particles leave the ground and, squeezed by the scooping bars 112, continue to rotate with the drum 111. After passing the scooping bars 112 and reaching the entrance of the dry waste collection unit 150, the sponge layer 111b recovers its deformation, releasing the dry waste particles it had wrapped around it and allowing them to bounce into the dry waste collection unit 150.

[0108] The axis of the squeezing unit 120 is arranged parallel to the roller 111 and can be fixed to the housing 500 at both ends or via a snap-fit ​​mechanism. The hardness of the squeezing unit 120 is much greater than that of the sponge layer 111b. The distance between the squeezing unit 120 and the axis of the roller 111 is less than the sum of their radii. Therefore, after assembly, the squeezing unit 120 squeezes the roller surface. A squeezing area B is formed where the squeezing unit 120 faces the roller 111.

[0109] Figure 7 It is a schematic diagram of the formation of the water squeezing zone, such as Figure 7 As shown, the squeezing unit 120 interferes with the roller 111, squeezing the sponge layer 111b of the roller at the point of interference. In the figure, the roller 111 rotates clockwise, forming a squeezing area B below the squeezing unit 120 in the figure. The water carried on the sponge layer 111b of the roller flows out after being squeezed and is collected by the sewage collection unit 140. After the roller passes through the wet garbage, the sponge layer continues to rotate clockwise with the wet garbage. On the roller, the sponge layer between the grounding 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 area B and is collected by the sewage collection unit 140. As a result, the water content of the sponge layer passing through the squeezing point N is unsaturated. When it rotates to point M again and contacts the ground, it can continue to absorb water. In this way, the cleaning tool can continuously absorb water accumulated on the ground, avoiding the sponge being saturated and unable to effectively absorb water.

[0110] The cleaning tool of the present disclosure also includes a clean water supply unit 160. This unit delivers clean water directly or indirectly to the sponge layer 111b. The clean water enters the sponge layer and, when squeezed by the squeezing unit 120, overflows from the sponge layer, removing dirt from the surface of the sponge layer 111b and thereby cleaning the drum surface.

[0111] When the roller rolls over the sticky wet garbage on the ground, the sticky wet garbage adheres to the surface of the sponge layer 111b. The clean water provided by the clean water supply unit 160 washes away the sticky wet garbage layer attached to the surface of the sponge layer 111b.

[0112] To keep the sponge layer relatively dry after squeezing, clean water supply unit 160 is positioned within the squeezing zone. In this zone, sponge layer 111b absorbs clean water, becoming saturated. Then, squeezed by squeezing unit 120, wet trash and water trapped in the sponge layer and adsorbed from the ground are expelled. This liquid expulsion process removes sticky wet trash from the surface of sponge layer 111b, keeping the surface of sponge layer 111b clean. Therefore, the present invention cleans the surface of roller brush 111 without requiring the operator to manually clean or interrupt cleaning operations. During the roller's rotation, the surface of the roller brush in contact with the ground remains clean.

[0113] The present disclosure also includes a cleaning unit 130. The cleaning unit 130 is located above the entrance of the dry garbage collection unit 150. When the surface of the drum rotates past the upper end of the shovel bar and reaches the entrance of the dry garbage collection unit 150, the solid garbage attached to its surface cannot be separated from the sponge layer 111b by the elasticity and weight of the sponge. The cleaning unit 130 scrapes it off, and the scraped garbage falls under its own weight and falls into the dry garbage collection unit 150. The cleaning unit 130 is particularly suitable for some light and small garbage that is easy to adhere to, such as paper scraps. The cleaning unit 130 keeps the surface of the sponge layer 111b free of dry garbage.

[0114] The cleaning tool of the present disclosure also includes a water circulation module, which includes a sewage collection unit 140 and a clean water supply unit 160 connected by pipes. Sewage is squeezed out of the drum 111 and collected in the sewage collection unit 140 through pipes. After purification, it enters the clean water supply unit 160 for recycling and spraying back into the water squeezing area to clean the roller brush.

[0115] The beneficial effects of the present disclosure are:

[0116] When the disclosed mop is used to clean the floor, the wet outer sponge contacts the floor without raising dust, and has the effect of an ordinary mop, thereby preventing secondary pollution.

[0117] The outer sponge and the shovel bar cooperate with each other to completely collect solid waste;

[0118] The cleaning unit separates and collects the solid waste attached to the outer sponge, keeping the surface of the outer sponge free of solid waste;

[0119] The drum absorbs wet garbage from the ground. When the water inside is squeezed out, the sticky garbage attached to the drum surface is peeled off and diluted. The water-soluble part is taken into the sewage tank, and the water-insoluble part is peeled off from the drum and enters the solid waste tank. This can process sticky garbage and separate dry and wet garbage.

[0120] The squeezing unit squeezes out the liquid locked in the outer sponge, keeping the outer sponge unsaturated, so that the cleaning tool can continuously clean up liquid waste;

[0121] The clean water supply unit and the squeezing unit work together to keep the roller in contact with the ground always clean;

[0122] Therefore, the present invention can clean sticky wet garbage, especially a mixture of various garbage, and can separate dry and wet garbage, and continuously keep the outer sponge surface of the drum clean.

[0123] The various components and the combination relationship of the components disclosed in the present invention are not unique, and are described one by one below.

[0124] Figure 8 Schematic diagram of the drum structure of an embodiment of the present disclosure. Figure 8 As shown, the roller includes a hard rubber 111c located at the axis and a sponge layer 111b wrapped and fixed on the circumferential surface of the hard rubber.

[0125] The density and hardness of a sponge have a direct impact on its water absorption and water retention (also known as water retention). When the density of a sponge increases to a certain extent, its water absorption decreases, its hardness increases, and its water retention increases. Conversely, when the density of a sponge decreases, its water absorption increases, its hardness decreases, and its water retention decreases.

[0126] The roller of this embodiment has only a single sponge layer. Sponge layer 111b is made from polyvinyl alcohol (PVA) foam. The PVA sponge has a density of 0.5-0.25 g / cm³ and a water absorption rate of 0.5-1.5 g / cm³. The Shore A hardness of the PVA sponge is 40-70. The water storage capacity of the PVA sponge is 0.2-1.0 g / cm³. Due to the aforementioned properties, the sponge layer of the present disclosure offers superior performance compared to existing single-layer sponge rollers:

[0127] The sponge layer has both appropriate water absorption and water storage rates, as well as appropriate density and hardness. This allows the sponge to deform just right during the mopping process, wrapping the garbage particles. When the shovel bar is turned past its limit, the sponge can use its own elasticity to eject most of the garbage particles, separating them from the sponge layer and dropping them into the dry garbage collection unit, so that nothing is missed. Moreover, when dealing with accumulated water on the ground, the sponge can absorb more water, leaving less water on the mopped bottom surface.

[0128] The single-layer sponge layer disclosed in the present invention does not have the disadvantage of the double-layer sponge being squeezed and separated from each other, which affects the life of the roller.

[0129] Figure 9is a cross-sectional view of a cleaning tool with the above-mentioned roller, Figure 10 for Figure 9 Schematic diagram of the side appearance; Figure 11 is a perspective schematic diagram of an embodiment of a roller; Figure 12 This is a schematic diagram of the drum disassembly state; Figure 13 for Figure 12 Another perspective diagram of . Figures 8 to 12 As shown, one end of the hard rubber includes a connecting shaft, and the other end is a hollow cylinder.

[0130] One end of the driving motor 113a is fixed to the cleaning head through the fixing seat 113e and the rotating shaft 113c, and the other end can rotate around the rotating shaft at a certain angle. The hollow end of the hard rubber 111c is put on the motor, and this end presses against the driving motor 113a. The other end of the hard rubber is fixed to the pressing and telescopic device on the cleaning head. The pressing and telescopic device 113f includes parts such as a button, a spring and a stopper. When the button is stressed, the compression spring drives the stopper to move away from the position that resists the hard rubber. At this time, the end of the hard rubber 111c can be moved out of the roller mounting slot on the cleaning head shell, and the other end drives the driving motor 113a therein to rotate around the rotating shaft 113c, forming a Figure 12 、 13 The roller 111 can be removed by pulling it out of the motor. Pressing the button on the retractable mechanism causes the block to retract, and releasing it causes the block to return to its original position. The reverse operation allows the roller to be installed on the cleaning head. Alternatively, the retractable mechanism can be mounted on the roller. Pressing the button causes the spring to retract the block, pushing it out of the recess on the cleaning head housing, freeing the roller from the restraints of the cleaning head and allowing it to be easily removed.

[0131] The roller of the present disclosure can also be made into a structure with both ends blocked, and the drive motor is connected to the roller through a connector to drive the roller to rotate. The cleaning tool with a roller drive motor can reduce the operator's thrust on the cleaning tool, which is suitable for operators with insufficient strength.

[0132] The spiral protrusion on the drum can guide the sewage squeezed out of the extrusion unit to a designated location along the thread direction, such as the sewage pipe suction nozzle, so as to prevent sewage from overflowing and causing secondary pollution of the bottom surface.

[0133] The extrusion unit disclosed herein comprises an elongated object positioned parallel to and interfering with the roller. The elongated object is fixed to the housing of the cleaning head, interfering with the roller. The elongated object is harder than the sponge layer on the roller surface, compressing the sponge layer and causing it to deform. The extrusion unit can have different physical structures, each with its own advantages.

[0134] like Figure 9The squeezing unit includes a fixing base 125 and a strip-shaped protrusion 126. The fixing base secures the squeezing unit to the housing. When the drum 111 rotates about its axis, the strip-shaped protrusion 126 remains stationary, squeezing and deforming the sponge layer passing through the strip-shaped protrusion. Most of the water trapped in the sponge layer is squeezed out of the sponge surface and flows downward.

[0135] The squeezing unit can be a cylindrical squeezing roller, which is fixed to the cleaning head at both ends. The surface of the squeezing roller can be smooth or have spiral protrusions.

[0136] Figure 14 FIG. 1 is a schematic structural diagram of an embodiment of a squeezing roller, as shown in FIG. Figure 14 As shown, the squeezing roller 121 of this embodiment includes a cylindrical roller body 121a, which is mounted on the housing of the cleaning head at both ends. The circumferential surface of the roller body 121a is provided with a spiral protrusion, which, to distinguish it from the spiral protrusion on the roller, may be referred to as a second spiral protrusion 121f. There is one spiral protrusion on the circumferential surface of the squeezing roller, extending from one end of the squeezing roller to the other.

[0137] Figure 15 FIG. 1 is a schematic diagram of another embodiment of the squeezing roller. Figure 14 The difference from the illustrated embodiment is that there are two second spiral protrusions 121f, 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.

[0138] In this embodiment, a linear protrusion 121g parallel to the axis of the roller body 121a is provided in the middle of the two second spiral protrusions 121f in the middle of the roller body 121a, and the linear protrusion 121g can be connected to the two second spiral protrusions.

[0139] In this way, a closed side wall can be formed on the surface of the roller body 121 a.

[0140] The side wall of the spiral protrusion can play a role in pushing water, helping to push the sewage squeezed out by the squeezing roller to the set sewage outlet.

[0141] Figure 14 The squeezing roller shown is equipped with a cleaning head with a sewage outlet located on the side. Figure 15 The squeezing roller shown is equipped with a cleaning head with the sewage outlet located in the middle of the squeezing roller.

[0142] Figure 16 Schematic diagram of threaded water guide. Figure 16The direction of reclaimed water flow is indicated by the arrows. Drum 111 rotates clockwise, while squeeze roller 121 rotates counterclockwise, forming a squeezed water trough at the angle between the squeeze roller 121 and the drum. The water purification port is on the right end of the machine, while the water extraction port is on the left. To ensure rapid water flow, screw threads are added to squeeze roller 121. The side of these threads acts as a pusher, accelerating water flow and preventing accumulation and overflow of the housing due to rising water levels.

[0143] The sewage outlet and the clean water outlet are located in the cleaning tool on opposite sides of the cleaning head. In order to speed up the flow of water, a secondary water tank is also provided next to the drum. Figure 17 This is a schematic diagram of the secondary water tank structure. Secondary water tank 1410 is angled. Water inlet 1411 is slightly higher than outlet 1412. After the squeezing unit 120 squeezes water from drum 111, the water flows along the drum surface into the water tank. Because the tank is tilted at a certain angle, the water flow rate in the tank is relatively fast, improving the efficiency of drum cleaning.

[0144] Figure 18 For Figure 14 Squeeze roller and Figure 8 Schematic diagram of the internal structure of the drum cleaning tool. In this embodiment, the drum 111 has a first spiral protrusion 111f, and the squeezing roller 121 has a second spiral protrusion 121f. The thrust on the water is more powerful.

[0145] The squeezing unit interferes with the drum, and the squeezed water is stored between the two, forming a water tank. You can spray clean water on the drum surface, or inject clean water into the water tank to clean the drum surface. Figure 19 , the squeezing roller 121 interferes with the drum 111, and a water tank A is formed above the interference between the two.

[0146] The location where the extrusion unit is set up takes into account the location where the water tank is formed. Figure 19 In the embodiment, when the drum 111 rotates clockwise, the squeezing roller 121 is located at the upper right of the drum, and the water tank is formed in the right half of the drum. Figure 20 In the embodiment, when the drum 111 rotates counterclockwise and the squeezing roller 121 is arranged at the upper left, the water tank formed will be in the left half.

[0147] This disclosure refers to the extrusion unit being stationary relative to the housing as static extrusion. Static extrusion has a simple structure, and the extrusion unit can be directly integrated with the main machine structure, making it more convenient during design.

[0148] The extrusion unit can be fixed or rotated.

[0149] The squeezing roller can be equipped with a power mechanism to actively squeeze water, or it can be equipped with no power mechanism to save costs and rely on the friction of the roller to rotate.

[0150] A first motor may be fixed on the housing of the cleaning head, and the first motor is connected to the squeezing roller to drive the squeezing roller to rotate.

[0151] When the drum is also equipped with a drive motor, the drive motor and the first motor rotate in opposite directions. This saves the most energy. Both the drive motor and the first motor can be motors within 10W, which can achieve the same cleaning effect as ordinary household cleaning tools without noise and environmental protection.

[0152] Of course, the driving motor and the first motor can also rotate in the same direction. The rotation speeds of the first motor and the driving motor are generally inversely proportional to the diameters of the squeezing roller and the drum, so that the linear speeds of the two contact points are the same, which is the most energy-efficient.

[0153] When the rotation speed of the first motor is greater than that of the driving motor, the squeezing effect of the squeezing roller is better than that of the above situation, but the energy consumption of the first motor is relatively increased.

[0154] When the rotation speed of the first motor is lower than the rotation speed of the driving motor, the water squeezing effect of the squeezing roller is better than when the squeezing roller does not rotate.

[0155] The cleaning unit of the present disclosure may take a variety of forms.

[0156] 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 bristles 131a. The bristles 131a are arranged on the circumferential surface of the roller brush shaft 131b. Figure 16 The bristles are shown arranged in a V-shape. Figure 18 The bristles are shown arranged in a straight line along the main axis. The roller brush assembly consists of bristles attached to a plastic roller brush shaft. The roller brush shaft can be hollow or solid, depending on the specific design. Six to eight groups of bristles are evenly spaced on the roller brush.

[0157] The roller brush can be driven by a motor: the roller brush shaft 131b is connected to the third driving motor through a coupling.

[0158] Realize the rotation of the roller brush.

[0159] The structural arrangement of the roller brush and the drum can be in various forms, mainly to achieve the above functions.

[0160] The roller brush assembly can be used in all types of cleaning tools mentioned in this disclosure.

[0161] Figure 21 The cleaning unit shown is a straight row of brushes 132. The straight row of brushes 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-containing part of the wet garbage 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 is deformed, wraps it, and then rolls it up. After passing through the track of the shovel bar 112 and then reaching the highest point of the shovel bar, the solid garbage falls into the garbage box 141 at the bottom under the action of the rebound of the sponge layer and gravity without relative squeezing. A straight row of bristles is set at the upper end of the garbage box 141. The length of the straight row of brushes 132 is consistent with the length of the roller 111, and the bristles are evenly arranged. The function of the bristles is to sweep away fine garbage such as fluff and floating dust adhering to the roller. Try to prevent these garbage from entering the sink. This structure saves space, reduces costs, and can also achieve a good cleaning effect.

[0162] The inline brush can be used with all types of cleaning tools mentioned in this disclosure.

[0163] In the case of sticky garbage, if a rolling brush or a straight brush is used to clean the drum, the sticky objects will stick to the brush, and it will be difficult to clean the machine. To this end, the present invention adopts a scraper and a scraper structure to scrape the sticky wet garbage on the drum into the trash can. The specific implementation scheme is as follows: Figure 23 、 Figure 3 、 Figure 9 As shown, the cleaning unit is a scraper bar assembly 133 .

[0164] If combined Figure 23 、 Figure 3 and Figure 9 As shown, the scraper assembly 133 includes a long scraper bracket 133c for fixing on the cleaning head. Friction portion 133a and drainage portion 133b For ease of understanding, Figure 23 In the coordinates, the X direction is called the length direction, the approximately Y direction is called the width direction, and the approximately Z direction is called the height direction.

[0165] The scraper bar assembly 133 is formed by extending the scraper bar bracket in the width direction. The drainage portion 133b is located at both ends of the scraper bar bracket and extends substantially along the height direction of the scraper bar bracket.

[0166] exist Figure 9 In the cleaning tool shown, the cleaning tool includes a roller 111 , a motor 113 a for driving the roller, a shovel bar 112 , and a trash box 141 .

[0167] The outer layer of the drum is made of a water-absorbing sponge layer, and the inner layer is supported by hard rubber. A driving force is set at both ends or the center of the hard rubber to make the drum rotate.

[0168] The scraper bracket 133c is fixed on the position above the garbage box 141 close to the roller 111. The scraper assembly 133 is in close contact with the roller 111. The end of the friction part interferes with the roller surface The friction part 133a can peel off the floating dust and sticky garbage remaining on the drum 111 and make it fall into the garbage box 141. The drainage part 133b is in contact with the drum 111 and pre-presses about 0.5-3mm toward the center of the drum. Since the water tank for cleaning the drum is designed on the top, The function of the drainage portion 133b is to seal the water , to prevent the water in the sink from flowing into the trash box from both ends of the scraper bar.

[0169] like Figure 23 As shown, the edge of the friction portion 133a is tooth-shaped, which can better separate the floating dust and sticky garbage attached to the roller from the roller.

[0170] Multiple alignment blocks are positioned on the scraper support 133c, facing away from the friction portion 133a and the drainage portion 133b. Correspondingly, multiple recesses are provided on the cleaning head housing connected to the scraper support 133c. The alignment blocks and recesses work together to quickly align the cleaning head, improving assembly efficiency.

[0171] The friction part and the drainage part can be made of the same material as the scraper bracket, or can be made of different materials, and fixed together by bonding after each molding. The scraper bracket can be fixed to the housing of the cleaning head by gluing or secondary injection molding.

[0172] The scraper bar assembly may be used with all types of cleaning tools mentioned in this disclosure.

[0173] exist Figure 24 The cleaning tool shown also includes a dirty water tank 211 and a clean water tank 231. The clean water tank 231 is located at the end of the mop rod 40 near the mop head. The clean water tank includes an elongated clean water outlet 2311, which is aligned with the surface of the drum 111 between the squeezing roller 121 and the scraper assembly 133.

[0174] In addition, in other embodiments, the sewage tank can be connected to the sewage outlet through a pipeline, and the sewage outlet is set on the side of the shell near the position between the squeezing roller and the scraper. The clean water tank is connected to the clean water outlet through a pipeline, and the clean water outlet is set on the other side near the position between the squeezing roller and the scraper, and the height of the clean water outlet from the ground is greater than the height of the sewage outlet from the ground. The drainage part of the scraper assembly is located exactly at the clean water outlet and the sewage outlet. In this embodiment, the height difference between the clean water outlet and the sewage outlet is utilized, and the water flow is promoted by relying on the dead weight of the water. In addition, the drainage part of the scraper assembly guides water, which can better prevent water from overflowing out of the water system.

[0175] Figure 22The cleaning unit shown is a combination of a scraper assembly and a straight brush. The scraper assembly 133 of this embodiment is a combination of Figure 23 The friction part of the scraper assembly shown is replaced with a straight brush 1331. The clean water outlet 2311 is set on the extrusion unit to form a straight clean water hole or a narrow clean water outlet. The sewage tank 211 is set in the center of the cleaning head.

[0176] In addition, there is also a wind knife blowing cleaning method. It is suitable for cleaning dry garbage attached to the drum. Figure 22 The scraper assembly 133 is positioned so as to be replaced with an air outlet, and the surface of the drum is blown in the reverse direction along the tangential direction to clean the hair, paper scraps, etc. on the surface of the drum.

[0177] With clean water tank:

[0178] The clean water supply unit 160 includes a clean water tank 231. In addition to the cleaning rod 301, the extension rod 302, the connecting structure 304, and the hinge structure 305 described above, the handheld portion may also be equipped with a clean water tank.

[0179] One implementation method is as Figure 4 The clean water outlet 2311 of the clean water tank 231 faces the squeezing roller, and the clean water flows downward from the squeezing roller into the squeezing area to rinse the surface of the drum 111.

[0180] Alternatively, another embodiment is as follows Figure 1 As shown, the clean water tank 231 is fixed at a position of the handheld part close to the cleaning head, and the clean water is connected to the inside of the cleaning head through a water pipe.

[0181] In another embodiment, a large clean water tank 231 may be provided. Figure 25 shown.

[0182] An ozone generator and an air pump can also be set in the hollow cleaning rod to disinfect the water tank.

[0183] A power-assistance control system may also be integrated into the hollow cleaning rod to provide power for the forward or backward movement of the cleaning tool.

[0184] The components of the cleaning tools disclosed above can be combined as needed. The following are examples of several combined cleaning tools.

[0185] The cleaning head of the cleaning tool of this embodiment includes a power roller, a water tank is arranged on the cleaning head, and a filtering device is provided in the water channel to prevent the water pump from being blocked.

[0186] Figure 9-18 As shown in the figure, the cleaning head is sequentially equipped with a roller 111, a strip-shaped protrusion 126, a herringbone scraper assembly 133, a garbage box 141, and a water tank 210 from front to back.

[0187] Unlike Example 1 of the cleaning tool, the roller in this embodiment is driven by a motor 113a. One end of motor 113a is mounted on housing 500 via a rotating shaft 113c. The outer diameter of motor 113a fits within the roller, and the other end of motor 113a is fixed to the hard rubber of the roller, allowing the roller to rotate along the outer diameter of the motor (equivalent to the motor's output shaft). The roller in this embodiment can be either flat or threaded, and is removably mounted on the housing via a press-and-telescopic mechanism.

[0188] The water tank 210 of this embodiment is located at the end of the cleaning head, and water is pumped by a water pump to drive the water circulation. The water tank is divided into a sewage box and a clean water box by a detachable filter box or filter screen in the middle. The clean water box is connected to the clean water outlet provided on the shell through a pipeline. The clean water outlet guides the clean water into the cleaning area formed by the strip-shaped protrusion 126, the scraper assembly 133 and the drum surface to clean the drum surface. The cleaned sewage and the sewage squeezed out by the strip-shaped protrusion 126 flow into the sewage box through the pipeline from the sewage inlet provided on the opposite side. The sewage in the water tank is filtered by the filter screen or filter box and enters the clean water tank, and is pumped to the cleaning area by the water pump again, and the cycle repeats.

[0189] One-way valves are installed at the inlet and outlet of the water tank, and ejectors are installed at corresponding positions on the shell. When the water tank is removed from the shell, the one-way valves close to prevent water from overflowing. When installed, the ejectors push against the one-way valves to keep the water passage unobstructed.

[0190] The filter screen or filter box can filter out dry garbage or fine garbage that accidentally enters the water channel, prevent the water pump from being blocked, and extend the service life of the cleaning head.

[0191] This embodiment can also integrate an ozone generator in the mop rod, and pass the generated ozone into the water tank, so that the water in the sink contains ozone, and the water will not breed bacteria for a period of time, preventing the water from mildewing; and, using ozone-containing water to clean the drum, and the drum cleaning the floor can have the effect of disinfecting and sterilizing the floor.

[0192] The strip-shaped protrusions 126 of this embodiment can be replaced by a squeezing roller with threads, which has a stronger guiding effect on the water flow.

[0193] This embodiment uses a power-driven roller to make operation more convenient.

[0194] In addition, the drum and water tank of this embodiment can be disassembled for easy maintenance and cleaning; a filtering device is used to keep the water channel clean, extending the service life; ozone has a disinfecting effect on cleaning tools and the floor, making cleaning more thorough.

[0195] This embodiment has a power-assisting system and is suitable for cleaning tools of larger size.

[0196] Figures 25 to 29This is a schematic diagram of the structure of this embodiment. As shown in the figure, the cleaning tool includes a cleaning head 10 with a power-assisted wheel assembly 11 driven by a motor at the bottom, and a hollow mop rod 40, which is hinged to the mop head. The end of the mop rod near the ground is equipped with a large-capacity clean water tank. The water tank is heavy. In order to save effort and facilitate operation, the mop rod 40 includes a handle 41 with a power-assisted identification structure. The power-assisted identification structure is electrically connected to the power-assisted wheel assembly motor to control the steering of the power-assisted wheel assembly motor 22. The cleaning head includes the sweeping unit, squeezing unit, cleaning unit, dry garbage collection unit and sewage collection unit of one of the above-mentioned embodiments, which will not be repeated.

[0197] The handle 41 with a power-assisted identification structure includes: a control unit, a pressure sensor 410, a sensor push rod 412, a push rod sleeve 415, and a handle sleeve 413. The pressure sensor 410 is installed between the end face of the mop rod and the handle sleeve 413. One end of the sensor push rod 412 abuts against the pressure sensor 410, and the other end is fixed in the handle sleeve 413. The pressure sensor is connected to the control unit signal, and the control unit controls the direction of the motor. The inner diameter of the push rod sleeve 415 is fixed to the circumferential surface of the sensor push rod 412, one end is fixed to the end face of the mop rod, and the outer circumferential surface is slidably sleeved in the handle sleeve 413.

[0198] The method for controlling the power assist is: when working, the pressure sensor detects the force on the handle; the control unit judges the change in the force on the handle based on the comparison of the detected value with the magnitude of the force previously acting on the handle: when the force increases, the motor is controlled to rotate forward and the speed is increased, the power 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 reduced, the power assist wheel assembly rotates forward, but the speed is reduced, and the cleaning tool slows down and moves forward; when the force becomes a negative value, the motor is controlled to reverse, the power assist wheel assembly rotates backward, and the cleaning tool moves backward.

[0199] The disclosure also relates to a device for implementing the above method, 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 the force applied to 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.

[0200] The power-assisted wheel assembly 11 of this embodiment is located at the rear of the cleaning head, providing a more stable center of gravity for the cleaning tool. The power-assisted wheel assembly 11 comprises a wheel 12, a drive shaft 13, a fixed cover 14, and a fixed cover cap 15. The drive shaft 13 passes through a hole in the center of the fixed cover cap 15 and the wheel 12 and connects to the output shaft of the motor 22. The fixed cover 14 and the fixed cover cap 15 form a space to accommodate the wheel 12. Fasteners secure the fixed cover 14 and the fixed cover cap 15, which are then secured to the housing 500 at the bottom of the cleaning head.

[0201] In this embodiment, a large-capacity clean water tank is assembled at the ground-proximal end of the mop rod.

[0202] The cleaning head of the present disclosure includes a sewage tank 211, a squeeze roller 121, a roller 111, a roller brush assembly 131 and a dry garbage box 141 arranged from front to back. The arrangement of each component can be set according to the above content of the present disclosure.

[0203] The present invention utilizes the "water-dust circulation" cleaning technology to achieve self-cleaning of the drum, and combines sweeping, mopping, washing and twisting together, which greatly facilitates users and can achieve very good cleaning effects.

[0204] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

[0205] Finally, it should be noted that the above description is merely a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features therein. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present disclosure shall be included within the scope of protection of the present disclosure.

Claims

1. A cleaning head for cleaning the floor, characterized in that: include: The shell is equipped with an extrusion unit and is provided with a clean water outlet and a sewage inlet; The roller rotates to clean the floor and can be detachably connected to the housing; The scraper is mounted on the housing and forms a cleaning area together with the extrusion unit and the drum surface. The scraper includes a friction portion and a drainage portion. The end of the friction portion interferes with the drum surface, and the drainage portion is used to seal water. The water tank is located at the rear end of the housing. The water tank is divided into a sewage box and a clean water box by a detachable filter device in the middle. The clean water box is connected to the clean water outlet through a pipeline, and the clean water outlet guides the clean water into the cleaning area. The sewage after washing the drum and the sewage squeezed out of the drum by the extrusion unit flow into the sewage box through the sewage inlet through the pipeline. The sewage flows through the filter device and enters the clean water tank, and is pumped to the cleaning area again, and the cycle repeats. Among them, as the drum rotates, the drum surface after throwing away the dry garbage continues to be washed and soaked by clean water in the cleaning area, and the soaked drum surface continues to rotate downward to continue wet mopping to clean the ground.

2. The cleaning head according to claim 1, wherein Also includes: The motor drives the drum to rotate.

3. The cleaning head according to claim 2, wherein: One end of the motor is mounted on the housing through a rotating shaft, and the other end of the motor is fixed to the hard rubber of the drum. The outer diameter of the motor is sleeved inside the drum, so that the drum rotates with the outer diameter of the motor.

4. The cleaning head according to claim 3, wherein: The other end of the hard rubber is fixedly connected with a pressing and telescopic device, and the roller is detachably connected to the shell through the pressing and telescopic device.

5. The cleaning head according to claim 1, wherein Also includes: The water pump is connected between the drum and the water tank through a water channel, and the water channel includes a pipeline and a filtering device.

6. The cleaning head according to claim 1, wherein The filtration device is a removable filter box or filter screen in the water tank.

7. The cleaning head according to claim 6, wherein: The water tank is provided with an inlet and an outlet, wherein one-way valves are installed at the inlet and the outlet, and ejector pins are installed at the corresponding inlet and the outlet of the shell.

8. The cleaning head according to claim 7, wherein: When the water tank is removed from the shell, the one-way valve is closed to prevent water from overflowing; after the water tank is installed on the shell, the ejector pin pushes against the one-way valve to make the water path unobstructed.

9. The cleaning head according to claim 1, wherein: The extrusion unit includes: A fixing seat is connected to the shell to fix the extrusion unit on the shell; The strip-shaped protrusions are connected to the fixed seat, and the squeezing roller squeezes the sewage from the surface of the roller into the cleaning area.

10. The cleaning head according to claim 1, wherein The extrusion unit is a cylindrical extrusion roller, and both ends of the extrusion roller are fixed on the shell.

11. The cleaning head according to claim 10, wherein The surface of the squeezing roller is provided with spiral protrusions, which help push the sewage squeezed out by the squeezing roller to the sewage outlet.

12. The cleaning head according to claim 11, wherein The squeezing roller comprises a roller body which is cylindrical. The squeezing roller is mounted on a shell through both ends of the roller body, and the roller body can rotate.

13. The cleaning head according to claim 12, wherein: The surface of the roller body is provided with spiral protrusions, which help push the sewage squeezed out by the squeezing roller to the sewage outlet.

14. The cleaning head according to claim 13, wherein: The number of the spiral protrusion is one, and the spiral protrusion extends from one end of the squeezing roller to the other end.

15. The cleaning head according to claim 13, wherein There are two spiral protrusions, which start from the same generatrix at both ends of the roller body and spirally extend toward the middle of the roller body in opposite spiral directions.

16. The cleaning head according to claim 13, wherein There are two 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 side wall on the surface of the roller body. The side wall helps push the sewage squeezed out by the squeezing roller to the sewage outlet.

17. The cleaning head according to any one of claims 1 to 16, wherein: Also includes: The power-assisted wheel assembly is installed at the bottom of the housing and can move the cleaning head forward or backward.

18. The cleaning head according to claim 17, wherein Also includes: A trash box is housed in the housing and disposed behind the drum; When the drum rolls forward, it uses its own viscosity and elasticity to throw the garbage into the garbage box.

19. A cleaning tool, characterized in that: include: The cleaning head according to any one of claims 1 to 18; The handheld portion is pivotally connected to the cleaning head.

20. The cleaning tool according to claim 19, wherein The handheld unit includes: A cleaning rod is hollow inside and is provided with a power-assistance control system. A handle extends upward from the cleaning rod and has a power-assistance identification structure; A hinge structure is provided at the end of the cleaning rod close to the cleaning head and is pivotally connected to the cleaning head; A clean water supply unit is provided on the cleaning rod to provide clean water to the cleaning head; The power-assistance control system can control the driving device in the cleaning head to drive the power-assistance wheel assembly to move the cleaning head forward or backward.

21. The cleaning tool according to claim 20, wherein The power-assistance identification structure is electrically connected to the power-assistance control system, and the power-assistance control system is electrically connected to the driving device to control the steering of the driving device.

22. The cleaning tool according to claim 20, wherein The power-assisted wheel assembly includes a wheel, a drive shaft, a fixed cover, and a fixed cover cover; the drive shaft passes through the fixed cover cover and the hole in the center of the wheel and is connected to the output shaft of the motor; the fixed cover and the fixed cover cover form a space to accommodate the wheel; the fixed cover and the fixed cover cover are fixed to the bottom of the cleaning head.

23. The cleaning tool according to claim 20, wherein The clean water supply unit comprises a clean water tank, the clean water outlet of the clean water tank faces the squeezing unit, and the clean water flows downward from the squeezing unit into the squeezing area to flush the surface of the squeezing unit.

24. The cleaning tool according to claim 23, wherein The clean water tank is arranged at one end of the cleaning rod close to the cleaning head. The shell is provided with a clean water port, which is arranged in a long strip shape. The clean water outlet of the clean water tank is connected to the clean water port through a pipeline.

25. The cleaning tool according to claim 24, wherein The cleaning rod is equipped with an ozone generator and an air pump to disinfect the clean water tank.

26. The cleaning tool according to claim 19, wherein The handheld unit also includes: The extension rod is connected to the cleaning rod through a connecting structure to extend the overall length of the handheld part.

Images