WO2021147201A1

WO2021147201A1 - Cleaner head and cleaning tool

Info

Publication number: WO2021147201A1
Application number: PCT/CN2020/087905
Authority: WO
Inventors: 刘亚龙
Original assignee: 帝舍智能科技(武汉)有限公司
Priority date: 2020-01-22
Filing date: 2020-04-29
Publication date: 2021-07-29
Also published as: CN111166252A

Abstract

A cleaner head and a cleaning tool. The cleaner head comprises: a housing (500); a brush assembly (131) rotatably fixed on the housing (500); a roller (111) rotatably fixed on the housing (500) and arranged behind the brush assembly (131) side by side, wherein the surface of the brush assembly (131) interferes with the circumferential surface of the roller (111); and an arc-shaped shoveling strip (112) concentrically provided near the lower rear portion of the brush assembly (131). The cleaning tool comprises the cleaner head and a hand-held part hinged with the cleaner head, wherein the hand-held part comprises a hollow rod body. The cleaning tool can simultaneously treat dry waste and wet waste, and separate dry waste from wet waste for separate storage. The application of a "water-dust circulation" cleaning technology can clean viscous waste that is the most difficult to clean by existing cleaning tools and separate same from dry waste, thereby facilitating treatment of mixed waste of dry waste, wet waste and viscous waste.

Description

Cleaning head and cleaning tools

Technical field

The present disclosure generally relates to a cleaning head and a cleaning tool, in particular to a cleaning tool integrated with mopping and sweeping used to clean flat ground.

Background technique

Usually people clean the ground, using tools such as brooms, mops, floor wipes, etc. These tools mainly rely on people's manual operations to complete the cleaning work. With the advancement of science and technology, people's requirements for floor cleaning tools have gradually increased.

The vacuum cleaner first appeared, and its working principle is "air-dust circulation", that is, relying on electricity to supply energy and generating negative pressure to absorb garbage and dust on the ground. However, due to the limitation 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 the dust, it causes secondary dust.

Mops are the first choice for handling wet garbage. But use ordinary mops to clean up the particulate garbage, the particulate garbage is easy to adhere to the mop, causing secondary pollution of the ground, and the ordinary mop cannot collect dry garbage.

The content of the background technology is only the technology known to the public, and does not of course represent the existing technology in the field.

Overview

In view of at least one of the defects in the prior art, the present disclosure provides a cleaning head and a cleaning tool, which can simultaneously realize the two functions of mopping and sweeping.

The present disclosure provides a cleaning head including:

case;

The brush assembly is rotatably fixed on the housing;

A roller, rotatably fixed on the housing, and arranged behind the brush assembly;

The arc-shaped shovel strips are concentrically arranged near the rear and lower sides of the brush assembly, and are in contact with the cleaned surface.

According to an aspect of the present disclosure, the surface of the brush assembly interferes with the circumferential surface of the drum.

According to an aspect of the present disclosure, the cleaning head further includes a squeezing unit installed on the housing, and the squeezing unit is provided behind the drum to press the drum.

According to an aspect of the present disclosure, the pressing unit includes a strip-shaped protrusion, and the strip-shaped protrusion is fixed on the housing.

According to an aspect of the present disclosure, the pressing unit includes a cylindrical pressing roller, and the pressing roller is rotatably mounted on the housing through a bearing.

According to one aspect of the present disclosure, the circumferential surface of the squeeze roller is provided with spiral protrusions extending from one end to the other end of the squeeze roller.

According to an aspect of the present disclosure, the brush assembly includes a roller brush shaft and bristles, and the bristles are fixed on the circumferential surface of the roller brush shaft.

According to an aspect of the present disclosure, it further includes a brush bar fixed on the circumferential surface of the roller brush shaft.

According to an aspect of the present disclosure, it further includes a trash box, which is arranged in front of the brush assembly, and the trash box has an opening facing the brush assembly.

According to an aspect of the present disclosure, scraping teeth are provided on the lower edge of the opening of the trash box.

According to an aspect of the present disclosure, a sewage tank is further included, which is arranged below the squeezing unit.

According to one aspect of the present disclosure, a cover or a filter screen is provided on the sewage tank.

According to an aspect of the present disclosure, a clean water tank is further included, and the clean water tank provides clean water for the drum.

According to an aspect of the present disclosure, the water purification tank includes a filter screen or a filter box, and the water purification tank is divided into a sewage area and a water purification area by the filter screen or the filter box.

According to an aspect of the present disclosure, the sewage tank is in communication with the sewage area.

According to an aspect of the present disclosure, it further includes an upper cover of a water tank, and the upper cover of the water tank seals the clean water tank on the water tank.

According to an aspect of the present disclosure, it further includes a showering cavity, the showering cavity being located above the drum near the position of the squeezing unit.

According to one aspect of the present disclosure, a plurality of water spray holes are provided at the bottom of the water spray cavity.

According to one aspect of the present disclosure, a long slit is provided at the bottom of the shower chamber.

According to an aspect of the present disclosure, it further includes a water pump and a motor for driving the water pump.

According to one aspect of the present disclosure, the inlet of the water pump is connected with the outlet of the water purification zone; the outlet of the water pump is connected with the shower chamber.

According to an aspect of the present disclosure, the roller includes a hard rubber shaft and a sponge layer outside the hard rubber shaft.

According to one aspect of the present disclosure, the sponge layer is made by foaming polyvinyl alcohol.

According to one aspect of the present disclosure, the sponge layer has a density of 0.25-0.5 g/cm ³ , a water absorption rate of 0.5-1.5 g/cm ³ , a Shore hardness A of 40-70, and a water storage rate of 0.2-1.0 g /cm ³ .

According to an aspect of the present disclosure, it further includes a first driving motor to drive the brush assembly to rotate.

According to an aspect of the present disclosure, a second driving motor is further included to drive the drum to rotate.

According to an aspect of the present disclosure, the brush assembly and the drum are detachably fixed on the housing.

The present disclosure also relates to a cleaning tool, comprising the cleaning head and a hand-held part hinged to the cleaning head, and the hand-held part includes a hollow rod body.

According to an aspect of the present disclosure, the cleaning tool further includes a water volume adjustment unit, the water volume adjustment unit including a potentiometer electrically connected, an adjustment knob on the hand-held part, and a battery; wherein the adjustment knob controls the potentiometer, Adjust the output voltage of the battery.

According to one aspect of the present disclosure, the potentiometer and the circuit board are located inside the hollow rod body.

According to an aspect of the present disclosure, the cleaning tool further includes an ozone supply unit located inside the hollow rod body, and the ozone supply unit includes an ozone generator, a second air pump, and an air pipe.

According to one aspect of the present disclosure, the cleaning tool further includes a booster identification structure and a booster wheel assembly that is provided at the bottom of the cleaning head and driven by a fourth motor. The booster identification structure is electrically connected to the fourth motor to control the first Four-motor steering.

The power assist recognition structure includes a pressure sensor, a sensor plunger, and a handle sleeve; the pressure sensor is installed between the end face of the hollow rod body and the handle sleeve; one end of the sensor plunger presses against the pressure sensor, and the other end It is fixed in the handle sleeve.

The power assist recognition structure further includes a control unit, the pressure sensor is in signal connection with the control unit, and the control unit controls the steering of the fourth motor.

The handle with the power-assisted recognition structure further includes a mandrel sliding sleeve, the mandrel sliding sleeve is fixed on the circumferential surface of the sensor mandrel, one end is fixed with the end surface of the mop rod, and the outer circumferential surface is slidably sleeved on the handle sleeve Inside.

The solutions of the various embodiments of the present disclosure are applied to cleaning tools. The cleaning tool can process dry garbage and wet garbage at the same time, separate dry garbage and wet garbage, and store them separately; the application of "water and dust circulation" cleaning technology can clean the sticky garbage that is the most difficult to clean with existing cleaning tools, and compare it to dry garbage. Garbage separation is more capable of handling mixed garbage of dry garbage, wet garbage, and slimy garbage.

Description of the drawings

The drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions of the present disclosure are used to explain the present disclosure, and do not constitute an improper limitation of the present disclosure. In the attached picture:

Figure 1 is an exploded view of an embodiment of the cleaning head of the present disclosure;

Figure 2 is a schematic longitudinal sectional view of Figure 1;

Fig. 3 is a three-dimensional schematic diagram of Fig. 2 from a perspective;

Fig. 4 is a three-dimensional schematic diagram of Fig. 2 from another perspective;

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

Figure 6 is the structure of the shell;

Figure 7 is a schematic structural view of an embodiment of the drum;

Figure 8 is a schematic diagram of an embodiment of the installation of the drum motor;

Figure 9 is a schematic structural view of an embodiment of the extrusion unit;

Fig. 10 is a schematic structural view of another embodiment of an extrusion unit;

Figure 11 is a schematic structural view of another embodiment of the extrusion unit;

Figure 12 is a schematic diagram of an embodiment of the hand-held part;

FIG. 13 is a schematic diagram of an embodiment of the assist recognition structure;

Figure 14 is a schematic diagram of an embodiment of a booster wheel assembly;

Figure 15 is an exploded view of the structure of the booster wheel assembly shown in Figure 14;

Figure 16 is a schematic diagram of another embodiment of the hand-held part;

Figure 17 is a schematic diagram of a water volume adjustment unit;

Fig. 18 is a schematic diagram of an ozone supply unit.

Detailed ways

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art can realize, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present disclosure. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Straight", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise" and other directions or The positional relationship is based on the position or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the pointed device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it 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 indicated technical features. Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, "plurality" means two or more than two, unless otherwise specifically defined.

In the description of the present disclosure, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connected", and "connected" should be interpreted broadly, for example, they can be fixed or detachable. Connected or integrally connected: It can be mechanically connected, or electrically connected or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal communication of two components or the interaction of two components relation. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present disclosure can be understood according to specific circumstances.

In the present disclosure, unless otherwise clearly defined and defined, the "on" or "under" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them. Moreover, the "above", "above", and "above" of the first feature on the second feature include the first feature directly above and diagonally above the second feature, or it simply means that the first feature is higher in level than the second feature. The “below”, “below” and “below” of the first feature of the second feature include the first feature directly above and diagonally above the second feature, or it simply means that the level of the first feature is smaller than the second feature.

The following disclosure 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 only examples, and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numerals and/or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not 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 may be aware of the application of other processes and/or the use of other materials.

The preferred embodiments of the present disclosure are described below with reference to 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.

The present disclosure relates to a cleaning tool, which is used to clean the ground, especially the smooth and flat ground of a small area, such as the ground of home and kitchen. The cleaning tool of the present disclosure is particularly suitable for cleaning mixed garbage mixed with dry garbage, wet garbage, and viscous materials such as noodles, porridge, tomato sauce and the like.

The dry garbage mentioned in the present disclosure specifically refers to granular garbage, such as peels, melon seed shells, rice grains, paper pieces, and the like.

Wet garbage is liquid garbage, such as water and beverages.

Viscous wet garbage includes soup, soup, porridge, ketchup, chocolate sauce and other semi-solid garbage with a certain consistency.

Other garbage, such as dust, ground marks, etc., are also the cleaning objects of this disclosure.

Fig. 1 is an exploded view of an embodiment of the cleaning head of the present disclosure; Fig. 2 is a schematic longitudinal sectional view of Fig. 1; Fig. 3 is a perspective schematic view of one view of Fig. 2; Fig. 4 is a perspective schematic view of another view of Fig. 2; Schematic diagram of the structure of the water purification tank; Figure 6 shows the structure of the shell. For ease of understanding, define the right side in Figure 2 as the front of the cleaning head, and the left side as the back of the cleaning head. 1 to 6, the cleaning head of the present disclosure includes a housing 500; on the housing, a trash box 141, a brush assembly 131, a roller 111, a shovel bar 112, a cylindrical squeeze roller 121, The sewage tank 211 and the clean water tank 231 are also provided with a water spray chamber 151 above the position of the drum near the squeeze roller. Among them, the brush assembly 131 and the roller 111 are rotatably fixed on the housing. The surface of the brush assembly interferes with the circumferential surface of the drum, about 0.5-1 mm. The shovel bar 112 is in contact with the surface of the object to be cleaned, such as the ground. The squeeze roller 121 presses the roller 111 to squeeze out the liquid adsorbed by the roller, and flows out from the position below the squeeze roller 121. When the liquid flows out, it peels off the garbage attached to the surface of the roller and falls into the squeeze roller together with the liquid. Inside the trash box 141 set below 121. Below the back and bottom of the brush assembly 131, that is, below the side of the brush assembly close to the drum, a shovel strip 112 is provided. 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 trash box faces downward to brush the assembly 131.

The showering cavity can be integrally cast when the shell is formed. It can also be a separate detachable part. The bottom of the water spraying cavity is provided with a plurality of water spraying holes; or a long slit is provided so that the water in it can fall on the surface of the drum by its own weight.

The water purification tank 231 includes a filter screen or filter box 2310, and the water purification tank is divided into a sewage area 2311 and a water purification area 2312 by the filter screen or the filter box. The filter box contains the filter medium. The sewage area 2311 is in communication with the sewage tank 211; the water purification area 2312 is in communication with the shower chamber 151. The water purification tank 231 also includes a water tank upper cover 2315, which seals the water purification tank after the upper cover of the water tank is covered on the water purification tank.

A cover or filter screen is arranged on the sewage tank 211 to prevent the sewage from surging and overflowing in the sewage tank.

The cleaning head also includes a water pump 241 and a motor 242 for driving the water pump. The inlet of the water pump is connected with the outlet of the water purification zone; the outlet of the water pump is connected with the spraying cavity.

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 also reduce the friction between the roller and the ground. In the rear center of the cleaning head, a hand-held part for the operator is hinged. The “ground” mentioned in the present disclosure is in a broad sense and includes any surface of an object to be cleaned to which the present disclosure is applicable.

When the embodiment shown in Fig. 3 is working, the operator pushes the cleaning head to move forward (to the right) on the ground through the hand-held part. The brush assembly 131 rotates clockwise, 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 trash box 141. After the brush assembly has cleaned the granular dry garbage, the roller absorbs the wet garbage on the ground. When the roller rotates counterclockwise to the squeeze roller 121, the roller full of liquid is squeezed, and the liquid inside is squeezed out and flows into the sewage tank 211 along the mixed surface of the sponge. The surface of the brush assembly interferes with the circumferential surface of the drum, and the dry rubbish brush attached to the surface of the drum can be cleaned and sent to the rubbish box 141.

The squeezing unit interferes with the drum, and the squeezed water exists between the two, forming a water tank A. The surface of the drum can be cleaned by spraying clean water on the surface of the drum, or pour clean water into the sink. For example, a showering cavity 151 can be provided above the water tank A. At this sink position, the surface of the rotating drum is cleaned.

When the cleaning head moves backwards, the roller cleans up wet garbage first, and cleans up dry garbage after brushing the components.

The brush assembly 131 and the roller 111 can be mounted on the housing through a bearing, and are simultaneously driven by the motor 110 through a transmission structure, such as a gear meshing transmission structure. In other embodiments, the brush assembly and the roller may be driven by two motors respectively.

The rotation of the brush assembly 131 and the roller 111 can be controlled by a motor.

As an alternative embodiment, the shovel bar in FIG. 3 can be arranged on the housing between the brush assembly 131 and the trash box 141, so that the brush assembly 131 and the drum 111 can rotate counterclockwise at the same time, and the cleaning tool can be moved to FIG. 3 The leftward walking direction of the drum is consistent with the forward direction of the cleaning tool, which makes the dragging of the cleaning tool more labor-saving.

Or, in other embodiments, a one-way mechanism can be provided at the end of the roller, and the ratchet wheel and the blocking block can be matched to make the roller rotate in only one direction, so as to prevent the roller from turning upside down and secondly polluting the cleaned ground.

The present disclosure can simultaneously realize the functions of mopping and sweeping to clean the ground.

The above-mentioned parts of the present disclosure may have other forms of deformation, which will be explained one by one in conjunction with the accompanying drawings.

Figure 7 is a schematic view of the structure of an embodiment of the drum. As shown in Fig. 7, the roller includes a hard rubber shaft 111c at the shaft center and a sponge layer 111b wrapped and fixed on the circumferential surface of the hard rubber shaft.

The density and hardness of the sponge have a direct effect on the water absorption performance and water storage rate (also called water retention). When the sponge density increases to a certain extent, the water absorption performance will decrease, the hardness will increase, and the water storage rate will increase; on the contrary, the sponge density will decrease, the water absorption will increase, the hardness will decrease, and the water storage rate will decrease.

The roller of this embodiment has only a single sponge layer, and the sponge layer 111b is made by foaming polyvinyl alcohol (vinylalcohol polymer, PVA for short). The density of PVA sponge is 0.5-0.25g/cm ³ , and the water absorption rate is 0.5-1.5g/cm ³ . The Shore A hardness of PVA sponge is 40-70. The water storage rate of the PVA sponge is 0.2-1.0 g/cm ³ . Because the sponge layer of the present disclosure has the above-mentioned characteristics, compared with the existing single-layer ordinary roller, it has a better effect:

The sponge layer not only has proper water absorption performance, water storage rate, but also proper density and hardness, which enables the sponge to absorb more water when treating ground water, while the dragged ground has less water remaining.

On the surface of the roller, spiral protrusions can also be provided, which can be referred to as the first spiral protrusion 111f. As shown in FIG. 7, the spiral protrusions are one line extending from one end to the other end of the roller. In other embodiments, Among them, two spiral protrusions can be provided, and the pitches of the two spiral protrusions are the same, extending from the opposite side 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 can also be different: starting from the same bus bar at both ends of the drum, extending toward the middle in opposite spiral directions. At the close position of the two spiral protrusions, that is, in the middle part of the drum, a linear protrusion parallel to the axial direction is provided, and the linear protrusion is connected with the two spiral protrusions.

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

One end of the driving motor 113a is fixed on the cleaning head through a fixing seat and a rotating shaft 113c, and the other end can rotate around the rotating shaft at a certain angle. The hollow end of the hard rubber shaft 111c is sleeved on the motor, the end abuts against the driving motor 113a, and the other end of the hard rubber shaft is fixed on the pressing and retracting device on the cleaning head. The pressing and retracting device 113f includes parts such as buttons, springs, and blocks. The button is forced and the compression spring drives the block to move away from the position of resisting the hard rubber shaft. At this time, the end of the hard rubber shaft 111c can be moved out of the cleaning head housing. The other end of the roller mounting groove drives the drive motor 113a inside it to rotate around the shaft 113c, and then the roller is pulled out from the motor, and the roller 111 can be removed. When the button of the telescopic device is pressed, the stop is retracted, and when the button is released, the stop is reset. To realize the reverse operation, the roller can be installed on the cleaning head. Or, the pressing and retracting device is arranged on the drum, pressing the button, the spring drives the stopper to contract and pushes out from the recess on the stopper cleaning head housing, so that the roller is free from the restraint of the cleaning head, and the roller can be easily taken out at this moment.

FIG. 9 is a schematic structural diagram of an embodiment of the pressing unit. As shown in FIG. 9, the pressing unit includes a strip-shaped protrusion 126 that is fixed on the shell and presses the roller 111.

FIG. 10 is a schematic structural diagram of another embodiment of the pressing unit (FIG. 10 only shows the roller part, and the brush assembly is not shown). As shown in the figure, the pressing unit includes a fixing seat 125 and a strip-shaped protrusion 126. The squeeze unit is fixed on the shell through the fixing seat. When the roller 111 rotates around its axis, the strip-shaped protrusions 126 do not move, and the sponge layer passing through the strip-shaped protrusions is squeezed and deformed, and most of the water locked by the sponge layer is squeezed out of the sponge surface and flows down.

Figure 11 is a schematic structural view of another embodiment of the squeezing unit. In combination with Figures 2, 9 and 11, the squeeze roller 121 of this embodiment includes a roller body 121a, which is cylindrical, and is mounted on the housing of the cleaning head through both ends. Physically. The circumferential surface of the roller body 121a is provided with spiral protrusions. In order to distinguish it from the spiral protrusions on the roller, it may be called the second spiral protrusion 121f. The number of spiral protrusions on the circumferential surface of the squeeze roller is one, which extends from one end to the other end of the squeeze roller.

As shown in FIG. 4, the brush assembly 131 includes a roller brush shaft 131b, bristles 131a, and a brush bar 131c. The bristles 131a and the brush bar 131c can be uniformly fixed on the circumferential surface of the roller brush shaft 131b. The brush strip 131c is made of silica gel, which can scrape off the sticky garbage attached to the surface of the roller.

The lower edge of the opening of the trash box is provided with scraping teeth, 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.

The present disclosure also provides a cleaning tool including the above-mentioned cleaning head. The cleaning tool includes a cleaning head and a hand-held part hinged with the cleaning head, and the hand-held part comprises a hollow rod body.

Fig. 12 is a schematic diagram of an embodiment of the hand-held part. As shown in Fig. 12, the hollow rod body 40 is provided with a handle 41 including a power-assisted identification structure. The power-assisted identification structure is electrically connected with the motor of the power-assisted wheel assembly arranged on the bottom of the cleaning head, and controls the steering of the motor of the power-assisted wheel assembly.

FIG. 13 is a schematic diagram of an embodiment of the power-assisted identification structure, FIG. 14 is a schematic diagram of an embodiment of the power-assisted wheel assembly, and FIG. 15 is an exploded view of the structure of the power-assisted wheel assembly shown in FIG. 14. As shown in FIGS. 13 to 15, the handle 41 with a power-assisted identification structure includes: a control unit, a pressure sensor 410, a sensor jack 412, a jack sliding sleeve 415, and a handle sleeve 413. The pressure sensor 410 is installed between the end surface of the mop rod and the handle sleeve 413. One end of the sensor plunger 412 presses against the pressure sensor 410, and the other end is fixed in the handle sleeve 413. The pressure sensor is in signal connection with the control unit, and the control unit controls the rotation of the motor. The inner diameter of the mandrel sliding sleeve 415 is fixed on the circumferential surface of the sensor mandrel 412, one end is fixed to the end surface of the mop rod, and the outer circumferential surface is slidably sleeved in the handle sleeve 413.

The method of controlling power assist is: when working, the pressure sensor detects the force of the handle; the control unit compares the detected value with the force previously acting on the handle to determine the change in the force of the handle: when the force becomes greater, control the motor Forward, and increase the speed, the power-assisted wheel assembly rotates forward and the cleaning tool speeds up forward; when the force becomes smaller, the motor is controlled to rotate forward and reduce the speed, and the power-assisted wheel assembly rotates forward, but the speed is reduced. The cleaning tool reduces the speed and moves forward; when the force becomes negative, the motor is controlled to reverse, the booster wheel assembly rotates backward, and the cleaning tool moves backward.

The disclosure also relates to a device for realizing the above-mentioned control assisting method. The device at least includes 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, compares the direction, judges the change in the handle force, and sends the comparison result to the execution module. The execution module controls the rotation direction of the motor according to the judgment result of the receiving judgment module.

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 a 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 for accommodating the wheels 12. The fixed cover 14 and the fixed cover cover 15 are fixed by fasteners, and then fixed on the housing 500 at the bottom of the cleaning head by the fasteners.

Fig. 16 is a schematic diagram of another embodiment of the hand-held part. In this embodiment, the hand-held part of this embodiment includes a water volume adjustment unit and an ozone supply unit.

Fig. 17 is a schematic diagram of a water volume adjustment unit, and Fig. 18 is a schematic diagram of an ozone supply unit. As shown in Figure 16 to Figure 18, the water volume adjustment unit includes an electrically connected potentiometer 71, an adjustment knob 72 at the hand-held part, and a battery 73 for powering the water pump motor. The adjustment 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: the output voltage of the battery is high, the output power of the pump motor is large, the pump delivers more water to the sink, the ability to clean the drum is stronger, and the trash on the drum that can be removed is more; On the contrary, the output voltage of the battery is low, the output power of the water pump motor is low, the water pumped into the sink is less, the ability to clean the drum is weaker, and there is less garbage on the removable drum. The water volume adjustment unit also includes a switch 75 at the top of the hand-held part, and the switch is connected in series with the battery. It is convenient for the operator to switch the battery.

The potentiometer 71, the battery 73 and other parts are located inside the hollow rod body, which makes the product integration better, the appearance is more beautiful, and the operation is more convenient.

In this embodiment, an ozone supply unit can also be integrated in the mop rod, and the ozone supply unit includes an ozone generator 61, an air pump 62, and a gas pipe. The air pump inputs the generated ozone into the water purification tank 231 through the air pipe, so that the water contains ozone, and the water will not breed bacteria for a period of time to prevent water mildew; moreover, use ozone-containing water to clean the drum, and the drum cleans the ground. Play the effect of disinfection and sterilization on the ground.

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

In order to facilitate transportation, the hand-held part includes a multi-section rod body, and the multi-section rod body can be detachably connected. Since the hollow pole body requires the power supply line to pass, the wires will hinder the pole body separation after being disassembled. Therefore, in this embodiment, terminals are provided in the ends of the multi-section pole body, and the terminals are electrically connected to transmit electrical energy from the battery to the electrical parts below. .

The gas pipe is connected to the lower part of the clean water tank to ensure that ozone is input into the water.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the present disclosure. Within the scope of protection.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. Although the present disclosure has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it is still The technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced. 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

A cleaning head, characterized in that it comprises:

case;

The brush assembly is rotatably fixed to the housing;

A roller whose circumference is coated with sponge is rotatably fixed to the casing and is arranged behind the brush assembly;

The shovel bar is arranged near the rear and lower sides of the brush assembly and is in contact with the surface to be cleaned.
The cleaning head according to claim 1, wherein the surface of the brush assembly interferes with the circumferential surface of the drum.
5. The cleaning head according to claim 1, further comprising a pressing unit installed on the housing, the pressing unit is arranged behind the drum and presses the drum.
3. The cleaning head according to claim 3, wherein the squeezing unit comprises a strip-shaped protrusion, and the strip-shaped protrusion is fixed on the housing.
The cleaning head according to claim 3, wherein the squeezing unit includes a cylindrical squeeze roller, and the squeeze roller is rotatably mounted on the housing through a bearing.
5. The cleaning head according to claim 5, wherein the circumferential surface of the squeeze roller is provided with spiral protrusions extending from one end to the other end of the surface of the squeeze roller.
The cleaning head according to claim 1, wherein the brush assembly comprises a roller brush shaft and bristles, and the bristles are fixed on the circumferential surface of the roller brush shaft.
8. The cleaning head according to claim 7, wherein the brush assembly further comprises a brush bar, the brush bar being fixed on the circumferential surface of the roller brush shaft.
The cleaning head according to claim 1, further comprising a trash box, which is arranged in front of the brush assembly, and the opening of the trash box faces the brush assembly.
9. The cleaning head according to claim 9, wherein the lower edge of the opening of the trash box is provided with scraping teeth.
5. The cleaning head according to claim 3, further comprising a sewage tank, which is arranged below the squeezing unit.
The cleaning head according to claim 11, wherein a cover or a filter screen is provided on the sewage tank.
The cleaning head according to claim 12, further comprising a clean water tank, which provides clean water for the drum.
The cleaning head according to claim 13, wherein the water purification tank comprises a filter screen or a filter box, and the water purification tank is divided into a sewage area and a water purification area by the filter screen or the filter box.
The cleaning head according to claim 14, wherein the sewage tank is in communication with the sewage area.
The cleaning head according to any one of claims 13-15, further comprising an upper cover of a water tank, and the upper cover of the water tank covers the water purification tank to seal the water purification tank.
15. The cleaning head according to claim 16, further comprising a water showering cavity, the water showering cavity being located above the drum near a position of the squeezing unit.
The cleaning head according to claim 17, wherein a plurality of water spray holes are provided at the bottom of the water spray cavity.
17. The cleaning head according to claim 17, wherein a long slit is provided at the bottom of the shower chamber.
17. The cleaning head of claim 17, further comprising a water pump and a motor driving the water pump.
21. The cleaning head according to claim 20, wherein the inlet of the water pump is in communication with the outlet of the water purification zone; and the outlet of the water pump is in communication with the shower chamber.
The cleaning head according to claim 1, wherein the roller includes a hard rubber shaft and a sponge layer outside the hard rubber shaft.
The cleaning head of claim 22, wherein the sponge layer is made of polyvinyl alcohol foam.
The cleaning head of claim 23, wherein the sponge layer has a density of 0.25-0.5g/cm 3 , a water absorption rate of 0.5-1.5g/cm 3 , a Shore hardness A of 40-70, and The water rate is 0.2-1.0 g/cm 3 .
5. The cleaning head of claim 1, further comprising a first driving motor to drive the brush assembly to rotate.
5. The cleaning head of claim 1, further comprising a second driving motor to drive the drum to rotate.
The cleaning head according to claim 25 or 26, wherein the brush assembly and the roller are detachably fixed on the housing.
A cleaning tool, characterized in that it comprises the cleaning head according to any one of claims 1-26 and a hand-held part hinged to the cleaning head, and the hand-held part comprises a hollow rod body.
The cleaning tool of claim 28, further comprising a water volume adjustment unit, the water volume adjustment unit comprising an electrically connected potentiometer, an adjustment knob on the hand-held part, and a battery; wherein the adjustment knob controls The potentiometer adjusts the output voltage of the battery.
The cleaning tool according to claim 29, wherein the potentiometer and the circuit board are located inside the hollow rod body.
28. The cleaning tool according to claim 28, further comprising an ozone supply unit located inside the hollow rod, and the ozone supply unit includes an ozone generator, a second air pump, and an air pipe.
The cleaning tool according to claim 28, further comprising a power-assisted identification structure and a power-assisted wheel assembly arranged at the bottom of the cleaning head and driven by a fourth motor, and the power-assisted identification structure is electrically connected to the fourth motor , Control the steering of the fourth motor.
The cleaning tool according to claim 32, wherein the assist recognition structure comprises a pressure sensor, a sensor top rod and a handle sleeve; the pressure sensor is installed between the end surface of the hollow rod body and the handle sleeve; One end of the sensor rod presses against the pressure sensor, and the other end is fixed in the handle sleeve.
The cleaning tool according to claim 33, wherein the power assist recognition structure further comprises a control unit, the pressure sensor is signally connected to the control unit, and the control unit controls the steering of the fourth motor.
The cleaning tool according to claim 34, wherein the assisted identification structure further comprises a mandrel sliding sleeve fixed on the circumferential surface of the sensor mandrel; one end of the mandrel sliding sleeve is connected to the mop The rod end surface is fixed, and the outer circumferential surface of the push rod sliding sleeve is slidingly sleeved in the handle sleeve.