Cleaning head and cleaning tool

Abstract

The invention relates to a cleaning head and a cleaning tool. The cleaning head comprises a shell, a roller, a clean water tank, an extrusion unit, a brush assembly and a shovel strip. The roller rotates to clean the ground; the clean water tank provides clean water to wash the roller; the extrusion unit extrudes the roller to form a water tank and prevents dry garbage from entering the water tank; the brush assembly rotatably sweeps the surface of the roller; the shovel strip is contacted with the ground; the roller, the water purification tank, the extrusion unit, the brush assembly and the shovel strip are detachably mounted on the shell, dry garbage on the ground is carried into the shell under the combined action of the roller, the shovel strip and the brush assembly, sewage is extruded to the water tank to be guided away when the roller absorbs wet garbage on the ground and rotates to the extrusion unit, and the cleaning head mops and sweeps the surface to be cleaned through the single roller at the same time. The cleaning tool comprises a cleaning head and a handheld part hinged to the cleaning head, sticky garbage can be cleaned and separated from dry garbage, and mixed garbage of the dry garbage, wet garbage and sticky garbage can be treated.

Description

[0001] This application is a divisional application of Chinese patent application No. 202010075246.0 and invention name “Cleaning head and cleaning tool”, the contents of which are incorporated herein by reference. Technical Field

[0002] The invention relates to a cleaning device, in particular to a cleaning head and a cleaning tool for cleaning dry garbage, wet garbage and mixed garbage including sticky garbage on a flat ground. Background Art

[0003] Usually people clean the floor with tools such as 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, which works on the principle of "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 firmly attached to the ground. Once liquid enters the vacuum cleaner, it is easy to cause damage to the vacuum cleaner. In addition, the vacuum cleaner cannot handle wet garbage and cannot remove ground stains. In the process of cleaning dust, it causes secondary dust.

[0005] Mops are the first choice for handling wet garbage. However, when using ordinary mops to clean granular garbage, the granular garbage is easy to adhere to the mop, causing secondary pollution to the ground, and ordinary mops cannot collect dry garbage.

[0006] The contents of the background technology section are merely the technologies known to the public and do not necessarily represent the existing technologies in the field. Summary of the invention

[0007] In view of at least one of the defects in the prior art, in a first aspect, the present disclosure provides a cleaning head, comprising:

[0008] case;

[0009] The roller rotates to clean the surface to be cleaned, and comprises a hard rubber shaft and a sponge layer wrapped and fixed on the circumferential surface of the hard rubber shaft;

[0010] A clean water tank, providing clean water to rinse the drum;

[0011] A squeezing unit, squeezing the sponge layer, so that the sewage squeezed from the sponge layer flows between the two to form a water tank;

[0012] A brush assembly, rotating and sweeping the surface of the drum;

[0013] a shovel blade, which contacts the surface to be cleaned;

[0014] Among them, the drum, clean water tank, squeezing unit, brush assembly, and shovel bar are detachably installed on the shell. The drum, shovel bar, and brush assembly work together to carry dry garbage on the surface to be cleaned into the shell. After the drum absorbs wet garbage on the surface to be cleaned, it rotates to the squeezing unit and the sewage is squeezed into the water tank and guided away. The cleaning head can simultaneously mop and sweep the surface to be cleaned with a single drum.

[0015] In one or some embodiments, a pressing and retracting device is fixed to one end of the hard rubber shaft, which can be connected to / detached from the shell.

[0016] In one or some embodiments, the cleaning head further comprises:

[0017] The driving motor has one end fixed on the shell and the other end capable of rotating downwards. The other hollow end of the hard rubber shaft is sleeved on the driving motor.

[0018] In one or some embodiments, one end of the drive motor is fixed to the housing through a fixing seat and a rotating shaft, and the other end of the hard rubber shaft includes a connecting shaft, and the drive motor is coupled to the connecting shaft.

[0019] In one or some embodiments, a water shower chamber is further provided above the water tank.

[0020] In one or some embodiments, a one-way mechanism is provided at the end of the drum so that the drum can only rotate in one direction.

[0021] In one or some embodiments, the one-way mechanism includes a ratchet wheel disposed at the end of the roller and a blocking block disposed on the housing and cooperating with the ratchet wheel.

[0022] In one or some embodiments, the extrusion unit includes a strip-shaped protrusion, and the strip-shaped protrusion is fixed on the shell.

[0023] In one or some embodiments, the squeezing unit comprises a cylindrical squeezing roller, and the squeezing roller is rotatably mounted on the housing via a bearing.

[0024] In one or some embodiments, the circumferential surface of the squeezing roller is provided with a spiral protrusion extending from one end to the other end of the squeezing roller surface.

[0025] In one or some embodiments, the brush assembly includes a roller brush shaft and bristles, and the bristles are fixed on the circumferential surface of the roller brush shaft.

[0026] In one or some embodiments, the brush assembly further includes a brush bar, and the brush bar is fixed on the circumferential surface of the roller brush shaft.

[0027] In one or some embodiments, the cleaning head further comprises a dust box disposed in front of the brush assembly, and the opening of the dust box faces the brush assembly.

[0028] In one or some embodiments, scraping teeth are provided on the lower edge of the opening of the garbage box.

[0029] In one or some embodiments, the cleaning head further comprises a sewage tank disposed below the extrusion unit, and a cover or a first filter is provided on the sewage tank.

[0030] In one or some embodiments, the clean water tank comprises a second filter screen or a filter box, and the clean water tank is divided into a sewage area and a clean water area by the second filter screen or the filter box.

[0031] In one or some embodiments, the cleaning head further comprises a water tank cover, and the water tank cover is placed on the clean water tank to seal the clean water tank.

[0032] In one or some embodiments,

[0033] A plurality of water sprinkling holes are arranged at the bottom of the water sprinkling chamber;

[0034] or,

[0035] A long strip gap is arranged at the bottom of the water sprinkling chamber.

[0036] In one or some embodiments, the cleaning head further includes a water pump and a motor driving the water pump, and the water pump has a water pump inlet and a water pump outlet.

[0037] In one or some embodiments, the water pump inlet is connected to the outlet of the water purification area; the water pump outlet is connected to the water spraying chamber.

[0038] In one or some embodiments, the sponge layer is made of polyvinyl alcohol foaming, and the density of the sponge layer is 0.25-0.5g / cm3, the water absorption rate is 0.5-1.5 g / cm3, the Shore A hardness is 40-70, and the water storage rate is 0.2-1.0 g / cm3.

[0039] In one or some embodiments, the surface of the drum is provided with spiral protrusions.

[0040] In one or some embodiments, the spiral protrusion is a line extending from one end of the roller to the other end.

[0041] In one or some embodiments, there are two spiral protrusions with the same pitch, extending from opposite sides of one end of the roller to the other end of the roller, and the starting ends of the two spiral protrusions are located on the same generatrix of the roller.

[0042] In one or some embodiments, there are two spiral protrusions, which start from the same generatrix at both ends of the drum and extend toward the middle in opposite spiral directions. At the proximity of the two spiral protrusions, that is, the middle part of the drum, a straight protrusion parallel to the axial direction is provided, and the straight protrusion is connected to the two spiral protrusions.

[0043] In one or some embodiments, the cleaning head further comprises a first driving motor for driving the brush assembly to rotate.

[0044] In a second aspect, the present disclosure further provides a cleaning tool, comprising the cleaning head as described in the first aspect and a handheld portion hinged to the cleaning head, wherein the handheld portion comprises a hollow rod body.

[0045] In one or some embodiments, the cleaning tool also includes a water volume regulating unit, which includes a circuit board electrically connected to the water pump, a potentiometer electrically connected to the control panel, an adjustment knob located on the handheld part, and a battery; wherein the adjustment knob controls the potentiometer to adjust the output voltage of the battery.

[0046] In one or some embodiments, the potentiometer and the circuit board are located inside the hollow rod body.

[0047] In one or some embodiments, the cleaning tool further comprises an ozone supply unit located inside the hollow rod body, and the ozone supply unit comprises an ozone generator, a second air pump and an air supply pipe.

[0048] In one or some embodiments, the cleaning tool also includes a power-assist identification structure and a power-assist wheel assembly arranged at the bottom of the cleaning head and driven by a fourth motor. The power-assist identification structure is electrically connected to the fourth motor to control the direction of the fourth motor.

[0049] In one or some embodiments, the power-assisted identification structure includes a pressure sensor, a sensor push rod and a handle cover; the pressure sensor is installed between the end face of the hollow rod body and the handle cover; one end of the sensor push rod presses against the pressure sensor, and the other end is fixed in the handle cover.

[0050] In one or some embodiments, the power-assistance identification structure further includes a control unit, the pressure sensor is signal-connected to the control unit, and the control unit controls the steering direction of the fourth motor.

[0051] In one or some embodiments, the power-assisted identification structure also includes a push rod sleeve fixed on the circumferential surface of the sensor push rod; one end of the push rod sleeve is fixed to the end surface of the mop rod, and the outer circumferential surface of the push rod sleeve is slidably sleeved in the handle sleeve.

[0052] In one or some embodiments, the handheld part includes a plurality of hollow rod sections, and the plurality of rod sections are detachably connected; terminals are provided at the ends of the plurality of rod sections, and the plurality of rod sections are electrically connected with each other by means of the terminals.

[0053] In one or some embodiments, the water volume regulating unit further comprises a switch located at the top of the handheld portion, and the switch is connected in series with the battery.

[0054] In one or some embodiments, the air supply pipe is connected to the lower part of the clean water tank.

[0055] In the cleaning head disclosed in the present invention, the roller, shovel bar and brush assembly work together to carry dry garbage on the surface to be cleaned into the shell. After the roller absorbs the wet garbage on the surface to be cleaned, it rotates to the extrusion unit and the sewage is squeezed out to the water tank and guided away. The cleaning head can simultaneously mop and sweep the surface to be cleaned with a single roller.

[0056] The roller, shovel bar and brush assembly in the cleaning head of the present invention work together to carry dry garbage on the surface to be cleaned into the shell. After the roller absorbs the wet garbage on the surface to be cleaned, it rotates to the squeezing unit and the sewage is squeezed out to the water tank and guided away. The cleaning head can simultaneously mop and sweep the surface to be cleaned with a single roller.

[0057] The cleaning tool disclosed herein can process dry garbage and wet garbage at the same time, separate dry garbage and wet garbage, and store them separately; by applying the "water-dust circulation" cleaning technology, it can clean the sticky garbage that is the most difficult to clean with existing cleaning tools and separate it from the dry garbage, and it can also process mixed garbage of dry garbage, wet garbage, and sticky garbage. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0059] FIG1 is an exploded view of an embodiment of a cleaning head disclosed herein;

[0060] FIG2 is a schematic longitudinal cross-sectional view of FIG1 ;

[0061] FIG3 is a three-dimensional schematic diagram of FIG2 from a viewing angle;

[0062] FIG4 is a three-dimensional schematic diagram of FIG2 from another viewing angle;

[0063] Figure 5 is a schematic diagram of the structure of the clean water tank;

[0064] Figure 6 is a schematic diagram of the housing structure;

[0065] FIG7 is a schematic structural diagram of an embodiment of a roller;

[0066] FIG8 is a schematic diagram of an embodiment of a drum motor installation method;

[0067] FIG9 is a schematic structural diagram of an embodiment of an extrusion unit;

[0068] FIG10 is a schematic structural diagram of another embodiment of an extrusion unit;

[0069] FIG11 is a schematic structural diagram of another embodiment of an extrusion unit;

[0070] FIG12 is a schematic diagram of an embodiment of a handheld portion;

[0071] FIG13 is a schematic diagram of an embodiment of an assistive recognition structure;

[0072] FIG14 is a schematic diagram of an embodiment of a power-assisted wheel assembly;

[0073] FIG15 is an exploded view of the power-assisted wheel assembly structure shown in FIG14;

[0074] FIG16 is a schematic diagram of another embodiment of a handheld portion;

[0075] FIG17 is a schematic diagram of a water volume regulating unit;

[0076] Fig.18 This is a schematic diagram of an ozone supply unit. DETAILED DESCRIPTION

[0077] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0078] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0079] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0080] In the present disclosure, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.

[0081] The disclosure below provides many different embodiments or examples to realize different structures of the present disclosure. In order to simplify the disclosure of the present disclosure, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present disclosure provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0082] 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.

[0083] The present invention relates to a cleaning tool for cleaning a floor, in particular a smooth and flat small-area floor, such as a home or kitchen floor. The cleaning tool is particularly suitable for cleaning mixed garbage containing dry garbage, wet garbage, and viscous materials such as noodles, porridge, ketchup, etc.

[0084] 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.

[0085] Wet garbage refers to liquid garbage, such as water, beverages, etc.

[0086] Viscous garbage includes soup, stew, porridge, ketchup, chocolate sauce and other garbage with a certain viscosity.

[0087] Other garbage such as dust, ground marks, etc. are also cleaning objects disclosed in the present invention.

[0088] FIG. 1 is an exploded view of an embodiment of a cleaning head disclosed in the present invention; FIG. 2 is a schematic longitudinal cross-sectional view of FIG. 1; FIG. 3 is a stereoscopic schematic view of FIG. 2 from one perspective; FIG. 4 is a stereoscopic schematic view of FIG. 2 from another perspective; FIG. 5 is a schematic view of a clean water tank structure; and FIG. 6 is a schematic view of a shell structure. For ease of understanding, the right side in FIG. 2 is defined as the front of the cleaning head, and the left side is defined as the rear of the cleaning head. In combination with FIG. 1 to FIG. 6, the cleaning head disclosed in the present invention includes a shell 500; a garbage box 141, a brush assembly 131, a roller 111, a shovel bar 112, a cylindrical squeeze roller 121, a sewage tank 211 and a clean water tank 231 are arranged side by side from front to back on the shell, and a water spraying chamber 151 is also arranged above the roller near the squeeze roller. Among them, the brush assembly 131 and the roller 111 are rotatably fixed on the shell. The surface of the brush assembly interferes with the circumferential surface of the roller by about 0.5-1 mm. The shovel bar 112 contacts the surface of the object to be cleaned, such as the ground. The squeezing roller 121 presses the roller 111, squeezes out the liquid adsorbed by the roller, and flows out from the lower position of the squeezing roller 121. During the liquid flowing out, the garbage attached to the surface of the roller is peeled off and falls into the garbage box 141 arranged below the squeezing roller 121 together with the liquid. A shovel bar 112 is arranged at the lower rear of the brush assembly 131, that is, below the side of the brush assembly close to the roller. The shovel bar 112 is arc-shaped, made of silicone material, and fixed on the housing concentrically with the brush assembly. The opening of the garbage box faces the brush assembly 131 downward.

[0089] The water spraying chamber can be integrally cast when the shell is formed. It can also be a separate detachable part. A plurality of water spraying holes are arranged at the bottom of the water spraying chamber; or a long strip gap is arranged so that the water therein can fall onto the surface of the drum by its own weight.

[0090] The clean water tank 231 includes a filter screen or a filter box 2310, and the clean water tank is divided into a sewage area 2311 and a clean water area 2312 by the filter screen or the filter box. The filter medium is contained in the filter box. The sewage area 2311 is connected to the sewage tank 211; the clean water area 2312 is connected to the water sprinkling chamber 151. The clean water tank 231 also includes a water tank cover 2315, and after the water tank cover is covered on the clean water tank, the clean water tank is sealed.

[0091] A cover or a filter is provided on the sewage tank 211 to prevent the sewage from being agitated and overflowing in the sewage tank.

[0092] The cleaning head also includes a water pump 241 and a motor 242 for driving the water pump. The water pump inlet is communicated with the water purification area outlet; and the water pump outlet is communicated with the water shower chamber.

[0093] A roller is provided on the bottom surface of the cleaning head housing to facilitate the movement of the cleaning head on the bottom surface and reduce the friction between the roller and the ground. A hand-held portion for the operator to hold is hinged at the rear center of the cleaning head. The "ground" referred to in the present disclosure is in a broad sense, including any surface of an object to be cleaned applicable to the present disclosure.

[0094] When the embodiment shown in FIG3 is working, the operator pushes the cleaning head forward (to the right) on the ground through the handheld part. The brush assembly 131 rotates clockwise, and the brush assembly 131 and the shovel bar 112 work together to first carry the granular dry garbage scattered on the ground into the housing, pass over the brush assembly 131, and fall into the garbage box 141. After the brush assembly cleans the granular dry garbage, the roller absorbs the wet garbage on the ground. When the roller rotates counterclockwise to the squeezing roller 121, the roller saturated with liquid is squeezed, and the liquid inside is squeezed out and flows into the sewage tank 211 along the surface mixed with the sponge. The surface of the brush assembly interferes with the circumferential surface of the roller, and the dry garbage attached to the surface of the roller can be brushed clean and sent to the garbage box 141.

[0095] The squeezing unit interferes with the drum, and the squeezed water is stored between the two, forming a water tank A. Clean water can be sprayed on the surface of the drum, or clean water can be injected into the water tank to clean the surface of the drum. For example, a water spray chamber 151 can be set above the water tank A. At the position of the water tank, the surface of the rotating drum is cleaned.

[0096] When the cleaning head moves in reverse, the drum cleans the wet garbage first, and the brush assembly cleans the dry garbage afterwards.

[0097] The brush assembly 131 and the roller 111 can be mounted on the housing via bearings and driven simultaneously by the motor 110 via a transmission structure, such as a gear meshing transmission structure. In other embodiments, the brush assembly and the roller can be driven by two motors respectively.

[0098] The direction of the brush assembly 131 and the roller 111 can be controlled by a motor.

[0099] As an alternative embodiment, the shovel bar in Figure 3 can be set on the shell between the brush assembly 131 and the garbage box 141, so that the brush assembly 131 and the roller 111 can rotate counterclockwise at the same time, the cleaning tool can move to the left in Figure 3, and the rotation direction of the roller is consistent with the forward direction of the cleaning tool, making it easier to drag the cleaning tool.

[0100] Alternatively, in other embodiments, a one-way mechanism may be provided at the end of the drum, and through the cooperation of the ratchet and the blocking block, the drum can only rotate in one direction to prevent the drum from reversing and causing secondary contamination of the cleaned floor.

[0101] The present invention can realize the functions of mopping and sweeping the floor at the same time.

[0102] The above-mentioned components of the present disclosure may have other forms of deformation, which will be described one by one in conjunction with the accompanying drawings below.

[0103] Fig. 7 is a schematic structural diagram of an embodiment of a roller. As shown in Fig. 7, the roller comprises a hard rubber shaft 111c located at the axis center and a sponge layer 111b wrapped and fixed on the circumferential surface of the hard rubber shaft.

[0104] The density and hardness of the sponge have a direct impact on the water absorption and water storage rate (also known as water lock). When the density of the sponge increases to a certain extent, the water absorption will decrease, the hardness will increase, and the water storage rate will increase; conversely, when the density of the sponge decreases, the water absorption will increase, the hardness will decrease, and the water storage rate will decrease.

[0105] The roller of this embodiment has only one sponge layer, and the sponge layer 111b is made of polyvinylalcohol (PVA) foam. The density of PVA sponge is 0.5-0.25g / cm3, and the water absorption rate is 0.5-1.5g / cm3. The Shore A hardness of PVA sponge is 40-70. The water storage rate of PVA sponge is 0.2-1.0g / cm3. The sponge layer of the present disclosure has the above characteristics, so compared with the existing single-layer ordinary roller, it has better effects:

[0106] The sponge layer has both suitable water absorption performance and water storage rate as well as suitable density and hardness, which enables the sponge to absorb more water when dealing with water accumulation on the ground, while less water remains on the mopped ground.

[0107] A spiral protrusion may also be provided on the surface of the drum, which may be referred to as a first spiral protrusion 111f. As shown in FIG7 , there is one spiral protrusion extending from one end of the drum to the other end. In other embodiments, there may be two spiral protrusions, the two spiral protrusions having the same pitch, extending from opposite sides of one end of the drum to the other end of the drum. That is, the starting ends of the two spiral protrusions are located on the same generatrix of the drum. In other embodiments, the arrangement of the two spiral protrusions may also be different: starting from the same generatrix at both ends of the drum, they extend toward the middle in opposite spiral directions. At the proximity of the two spiral protrusions, that is, the middle part of the drum, a straight protrusion parallel to the axial direction is provided, and the straight protrusion is connected to the two spiral protrusions.

[0108] The drum can be driven by a motor as shown in Figure 2, or by a separate motor. Figure 8 is a schematic diagram of an embodiment of the drum motor installation method. As shown in Figure 8, one end of the hard rubber shaft of the drum includes a connecting shaft, and the other end is a hollow cylinder.

[0109] One end of the driving motor 113a is fixed to the cleaning head through a fixed seat and a rotating shaft 113c, and the other end can rotate around the rotating shaft at a certain angle. One hollow end of the hard rubber shaft 111c is sleeved on the motor, and the end abuts against the driving motor 113a, and the other end of the hard rubber shaft 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 block. When the button is stressed, the compression spring drives the block to move away from the position that abuts against the hard rubber shaft. At this time, the end of the hard rubber shaft 111c can be moved out of the roller mounting groove on the cleaning head housing, and the other end drives the driving motor 113a therein to rotate around the rotating shaft 113c, and then the roller is pulled out from the motor to remove the roller 111. When the button of the pressing and telescopic device is pressed, the block retracts, and when the button is released, the block resets. By performing the reverse operation, the roller can be installed on the cleaning head. Alternatively, the push-to-retract device is arranged on the roller, and the button is pressed, the spring drives the block to retract, and the block is pushed out from the recess on the cleaning head housing, so that the roller is freed from the restraint of the cleaning head, and the roller can be easily taken out at this moment.

[0110] FIG9 is a schematic structural diagram of an embodiment of an extrusion unit. As shown in FIG9 , the extrusion unit includes a strip-shaped protrusion 126 . The strip-shaped protrusion 126 is fixed on the shell to perform extrusion on the roller 111 .

[0111] FIG10 is a schematic diagram of the structure of another embodiment of the squeezing unit (FIG10 only shows the roller part, and does not show the brush assembly). As shown in the figure, the squeezing unit includes a fixing seat 125 and a strip-shaped protrusion 126. The squeezing unit is fixed to the housing by the fixing seat. When the roller 111 rotates around its own axis, the strip-shaped protrusion 126 does not move, and the sponge layer passing through the strip-shaped protrusion is squeezed and deformed, and most of the water locked in the sponge layer is squeezed out of the sponge surface and flows downward.

[0112] FIG11 is a schematic structural diagram of another embodiment of the squeezing unit. In combination with FIG2, FIG9 and FIG11, the squeezing roller 121 of this embodiment includes a roller body 121a, which is cylindrical and mounted on the housing of the cleaning head through both ends. The circumferential surface of the roller body 121a has a spiral protrusion, which can be called a second spiral protrusion 121f in order to distinguish it from the spiral protrusion on the roller. The number of spiral protrusions on the circumferential surface of the squeezing roller is one, extending from one end of the squeezing roller to the other end.

[0113] As shown in Fig. 4, the brush assembly 131 includes a roller brush shaft 131b, bristles 131a, and a brush strip 131c. The bristles 131a and the brush strip 131c can be evenly fixed on the circumferential surface of the roller brush shaft 131b. The brush strip 131c is made of silicone and can scrape off sticky garbage attached to the surface of the roller.

[0114] Scraping teeth are arranged at the lower edge of the opening of the garbage box, and the scraping teeth interfere with the bristles of the brush assembly, so that the hair entangled on the brush assembly can be peeled off.

[0115] The present disclosure also provides a cleaning tool comprising the cleaning head. The cleaning tool comprises a cleaning head and a handheld part hinged to the cleaning head, wherein the handheld part comprises a hollow rod body.

[0116] Fig. 12 is a schematic diagram of an embodiment of the handheld part. As shown in Fig. 12, the hollow rod body 40 is provided with a handle 41 having a power-assistance identification structure. The power-assistance identification structure is electrically connected to the motor of the power-assistance wheel assembly arranged on the bottom of the cleaning head to control the steering direction of the motor of the power-assistance wheel assembly.

[0117] FIG13 is a schematic diagram of an embodiment of a power-assisted identification structure, FIG14 is a schematic diagram of an embodiment of a power-assisted wheel assembly, and FIG15 is an exploded view of the power-assisted wheel assembly structure shown in FIG14. As shown in FIG13 to FIG15, the handle 41 with the power-assisted identification structure includes: a control unit, a pressure sensor 410, a sensor push rod 412, a push rod sliding 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 steering of the motor. The inner diameter of the push rod sliding 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.

[0118] The method for controlling the power assist is as follows: when working, the pressure sensor detects the force on the handle; the control unit determines 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.

[0119] The disclosure also relates to a device for implementing the above-mentioned control assistance method, the device at least comprising a detection module, a judgment module and an execution module. The detection module detects the force of the handle and sends the result to the judgment module. The judgment module receives the detection value, compares the detection value with the force previously acting on the handle in magnitude and direction, determines the change in the force of the handle, and sends the comparison result to the execution module. The execution module controls the rotation direction of the control motor according to the judgment result received from the judgment module.

[0120] The booster wheel assembly 11 of this embodiment is located at the rear of the cleaning head, so that the center of gravity of the cleaning tool is more stable. The booster wheel assembly 11 includes: a wheel 12, a drive shaft 13, a fixed cover 14, and a fixed cover cover 15; the drive shaft 13 passes through the fixed cover cover 15 and the hole in the center of the wheel 12, and is connected to the output shaft of the motor 22. The fixed cover 14 and the fixed cover cover 15 form a space to accommodate the wheel 12. The fixed cover 14 and the fixed cover cover 15 are fixed by fasteners, and then fixed to the housing 500 at the bottom of the cleaning head by fasteners.

[0121] FIG. 16 is a schematic diagram of another embodiment of a handheld part. In this embodiment, the handheld part of this embodiment includes a water volume regulating unit and an ozone supply unit.

[0122] FIG17 is a schematic diagram of a water volume regulating unit. Fig.18 16 to 17 are schematic diagrams of an ozone supply unit. Fig.18 As shown, the water volume regulating unit includes an electrically connected potentiometer 71, an adjusting knob 72 located on the handheld part, and a battery 73 for powering the water pump motor. The adjusting knob controls the potential 75 to adjust the output voltage of the battery. The output voltage of the battery determines the output power of the water pump motor: when the output voltage of the battery is high, the output power of the water pump motor is large, the water pump delivers more water to the sink, the ability to clean the drum is stronger, and more garbage on the drum can be removed; conversely, when the output voltage of the battery is low, the output power of the water pump motor is small, the water pump draws less water to the sink, the ability to clean the drum is weaker, and less garbage on the drum can be removed. The water volume regulating unit also includes a switch 75 located at the top of the handheld part, and the switch is connected in series with the battery. It is convenient for the operator to switch the battery on and off.

[0123] Parts such as the potentiometer 71 and the battery 73 are located inside the hollow rod body, which makes the product more integrated, more beautiful in appearance, and more convenient to operate.

[0124] In this embodiment, an ozone supply unit can be integrated in the mop rod, and the ozone supply unit includes an ozone generator 61, an air pump 62 and an air pipe. The air pump inputs the generated ozone into the clean water tank 231 through the air pipe, so that the water contains ozone, and bacteria will not grow in the water for a period of time, preventing the water from becoming moldy; and the ozone-containing water is used to clean the drum, and the drum cleans the floor, which can achieve the effect of disinfecting and sterilizing the floor.

[0125] The cleaning tool also includes a circuit board 74, which is located inside the hollow rod body. The water pump motor, ozone generator, and air pump are connected to the circuit board, controlled by the circuit board, and driven by battery power.

[0126] For easy transportation, the handheld part includes a plurality of rod sections, which are detachably connected. Since the power wire needs to pass through the hollow rod, when it is disassembled, the wire will hinder the separation of the rod. Therefore, in this embodiment, terminals are provided at the ends of the plurality of rod sections, and the electrical connection is made by the terminals to transmit electrical energy from the battery to the electrical components below.

[0127] The air pipe is connected to the lower part of the clean water tank to ensure that ozone is input into the water.

[0128] 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 protection scope of the present disclosure.

[0129] Finally, it should be noted that the above is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Although the present disclosure is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A cleaning head, characterized in that: include: case; The roller rotates to clean the surface to be cleaned, and comprises a hard rubber shaft and a sponge layer wrapped and fixed on the circumferential surface of the hard rubber shaft; A clean water tank, providing clean water to rinse the drum; A squeezing unit, squeezing the sponge layer, so that the sewage squeezed from the sponge layer flows between the two to form a water tank; A brush assembly, rotating and sweeping the surface of the drum; a shovel blade, which contacts the surface to be cleaned; Among them, the drum, clean water tank, squeezing unit, brush assembly, and shovel bar are detachably installed on the shell. The drum, shovel bar, and brush assembly work together to carry dry garbage on the surface to be cleaned into the shell. After the drum absorbs wet garbage on the surface to be cleaned, it rotates to the squeezing unit and the sewage is squeezed into the water tank and guided away. The cleaning head can simultaneously mop and sweep the surface to be cleaned with a single drum.

2. The cleaning head according to claim 1, characterized in that: A pressing and retracting device is fixed to one end of the hard rubber shaft, which can be connected to / detached from the housing; Preferably, the cleaning head further comprises: A driving motor, one end of which is fixed on the housing and the other end of which can rotate downward, and the other hollow end of the hard rubber shaft is sleeved on the driving motor; Preferably, one end of the driving motor is fixed to the housing through a fixing seat and a rotating shaft, and the other end of the hard rubber shaft includes a connecting shaft, and the driving motor is coupled to the connecting shaft; Preferably, a water sprinkling chamber is further provided above the water tank; Preferably, a one-way mechanism is provided at the end of the drum so that the drum can only rotate in one direction; Preferably, the one-way mechanism comprises a ratchet wheel arranged at the end of the roller and a blocking block arranged on the housing and cooperating with the ratchet wheel.

3. The cleaning head according to claim 1, characterized in that: The extrusion unit includes a strip-shaped protrusion, and the strip-shaped protrusion is fixed on the housing; or, The squeezing unit comprises a cylindrical squeezing roller, which is rotatably mounted on the housing via a bearing; a spiral protrusion is provided on the circumferential surface of the squeezing roller, extending from one end to the other end of the squeezing roller surface.

4. The cleaning head according to claim 1, characterized in that: The brush assembly comprises a roller brush shaft and bristles, wherein the bristles are fixed on the circumferential surface of the roller brush shaft; Preferably, the brush assembly further comprises a brush strip, and the brush strip is fixed on the circumferential surface of the roller brush shaft; Preferably, the cleaning head further comprises a trash box, which is arranged in front of the brush assembly, and the opening of the trash box faces the brush assembly; Preferably, the lower edge of the opening of the garbage box is provided with scraping teeth; Preferably, the cleaning head further comprises a sewage tank, which is arranged below the extrusion unit, and a cover or a first filter is provided on the sewage tank; Preferably, the clean water tank comprises a second filter screen or a filter box, and the clean water tank is divided into a sewage area and a clean water area by the second filter screen or the filter box; Preferably, the cleaning head further comprises a water tank cover, and the water tank cover is placed on the clean water tank to seal the clean water tank.

5. The cleaning head according to claim 2, characterized in that: A plurality of water sprinkling holes are arranged at the bottom of the water sprinkling chamber; or, A long strip gap is arranged at the bottom of the water sprinkling chamber.

6. The cleaning head according to claim 4, characterized in that: It also includes a water pump and a motor driving the water pump, wherein the water pump has a water pump inlet and a water pump outlet; Preferably, the water pump inlet is connected to the outlet of the water purification area; the water pump outlet is connected to the water sprinkling chamber; Preferably, the cleaning head further comprises a first driving motor for driving the brush assembly to rotate.

7. The cleaning head according to claim 1, characterized in that: The sponge layer is made of polyvinyl alcohol foaming, and the density of the sponge layer is 0.25-0.5 g / cm3, the water absorption rate is 0.5-1.5 g / cm3, the Shore A hardness is 40-70, and the water storage rate is 0.2-1.0 g / cm3; Preferably, the surface of the drum is provided with spiral protrusions.

8. The cleaning head according to claim 7, characterized in that: The spiral protrusion is a line extending from one end of the roller to the other end.

9. The cleaning head according to claim 7, characterized in that: There are two spiral protrusions with the same pitch, which extend from opposite sides of one end of the roller to the other end of the roller, and the starting ends of the two spiral protrusions are located on the same generatrix of the roller.

10. The cleaning head according to claim 7, characterized in that: There are two spiral protrusions, which start from the same generatrix at both ends of the drum and extend toward the middle in opposite spiral directions. At the proximity of the two spiral protrusions, that is, the middle part of the drum, a straight protrusion parallel to the axial direction is provided, and the straight protrusion is connected to the two spiral protrusions.

11. A cleaning tool, characterized in that: It comprises a cleaning head as claimed in any one of claims 1 to 10 and a hand-held part hinged to the cleaning head, wherein the hand-held part comprises a hollow rod body; Preferably, the cleaning head further comprises a water volume regulating unit, which comprises a circuit board electrically connected to the water pump, a potentiometer electrically connected to the control board, an adjusting knob located at the handheld part, and a battery; wherein the adjusting knob controls the potentiometer to adjust the output voltage of the battery; Preferably, the potentiometer and the circuit board are located inside the hollow rod body; Preferably, the cleaning head further comprises an ozone supply unit located inside the hollow rod body, and the ozone supply unit comprises an ozone generator, a second air pump and an air delivery pipe; Preferably, the cleaning head further comprises a power-assistance identification structure and a power-assistance wheel assembly arranged at the bottom of the cleaning head and driven by a fourth motor, wherein the power-assistance identification structure is electrically connected to the fourth motor to control the steering direction of the fourth motor; Preferably, the power-assisted identification structure comprises a pressure sensor, a sensor push rod and a handle cover; the pressure sensor is installed between the end surface of the hollow rod body and the handle cover; one end of the sensor push rod abuts against the pressure sensor, and the other end is fixed in the handle cover; Preferably, the power-assistance identification structure further includes a control unit, the pressure sensor is connected to the control unit by signal, and the control unit controls the steering of the fourth motor; Preferably, the power-assisted identification structure further comprises a push rod sliding sleeve, which is fixed on the circumferential surface of the push rod of the sensor; one end of the push rod sliding sleeve is fixed to the end surface of the mop rod, and the outer circumferential surface of the push rod sliding sleeve is slidably sleeved in the handle sleeve; Preferably, the handheld part comprises a plurality of hollow rod sections, and the plurality of rod sections are detachably connected; terminals are arranged at the ends of the plurality of rod sections, and the plurality of rod sections are electrically connected by means of the terminals; Preferably, the water volume regulating unit further comprises a switch located at the top of the handheld portion, and the switch is connected in series with the battery; Preferably, the air supply pipe is connected to the lower part of the clean water tank.

Images