Floor brush device, cleaning equipment and cleaning system

Abstract

The utility model discloses a floor brush device, cleaning equipment and a cleaning system, and belongs to the technical field of cleaning equipment.The floor brush device comprises a shell internally provided with a containing cavity; the rolling brush is arranged outside the accommodating cavity and is rotationally connected to the shell; the liquid pumping assembly is arranged in the containing cavity and comprises a water pump, a liquid outlet pipeline connected to the water pump and a mixing pipeline connected to the liquid outlet pipeline, and the mixing pipeline is used for supplying liquid to the rolling brush; the air pumping assembly is arranged in the containing cavity, the air pumping assembly comprises an air pump, an air outlet pipeline and an air inlet pipeline, the air outlet pipeline and the air inlet pipeline are connected to the air pump, and the air outlet end of the air outlet pipeline and the liquid outlet end of the liquid outlet pipeline communicate with the mixing pipeline; the driving assembly is arranged in the containing cavity and comprises a motor, and the motor is connected with the water pump and the air pump and used for driving the water pump and the air pump. According to the floor brush device, liquid can be pressurized, and the cleaning effect is improved; and the power structure is simplified, and the occupied space is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically relates to a floor brush device, cleaning equipment and a cleaning system. Background Art

[0002] In cleaning equipment such as floor scrubbers, the water supply and pressure of the water pump are insufficient to ensure uniform water discharge, which results in poor wetting effect on the roller brush surface of the cleaning equipment, resulting in poor cleaning effect, thus affecting the quality of cleaning. In order to enhance the wetting effect on the roller brush surface, the prior art introduces a pressure pump and other methods to increase the water discharge pressure of the water pump. However, the current pressure measures have a complex structure and require more installation space in the floor brush of the cleaning equipment, which can no longer meet the development needs of cleaning equipment. Utility Model Content

[0003] Purpose of the utility model: An embodiment of the present application provides a floor brush device, aiming to overcome the technical problem that the current pressurization measures have a complex structure and require a large amount of installation space for the floor brush; another purpose of the embodiment of the present application is to provide a cleaning device; the third purpose of the present application is to provide a cleaning system.

[0004] Technical solution: In the first aspect of the present application, the floor brush device provided by the embodiment of the present application includes:

[0005] A housing having a receiving cavity therein;

[0006] A roller brush is disposed outside the accommodating cavity and rotatably connected to the housing;

[0007] A pump liquid assembly is arranged in the accommodating cavity, comprising a water pump, a liquid outlet pipeline connected to the water pump, and a mixing pipeline connected to the liquid outlet pipeline, wherein the mixing pipeline is used to supply liquid to the roller brush;

[0008] A pump air assembly is arranged in the accommodating chamber, the pump air assembly comprises an air pump, an air outlet pipeline and an air inlet pipeline connected to the air pump, the air outlet end of the air outlet pipeline and the liquid outlet end of the liquid outlet pipeline are connected to the mixing pipeline;

[0009] A driving assembly is arranged in the accommodating cavity, and the driving assembly includes a motor. The motor is connected to the water pump and the air pump to drive the water pump and the air pump.

[0010] In some embodiments, the motor comprises:

[0011] A first body, wherein the water pump and the air pump are arranged on one side of the first body;

[0012] The first drive shaft is rotatably connected to the first body, and the first drive shaft protrudes relative to the first body toward the water pump and the air pump, and connects the water pump and the air pump. The water pump and the air pump can be driven synchronously by the first drive shaft, so that when the water pump is working, the air pump can work synchronously to achieve synchronous pressurization of the liquid.

[0013] In some embodiments, one of the water pump and the air pump is located on a side of the other away from the first body, and the first drive shaft is connected in series with the water pump and the air pump. This arrangement allows the water pump, the air pump and the first body to be arranged in a straight line, reducing the space occupied in the lateral direction and making it easier to assemble in the accommodating cavity.

[0014] In some embodiments, the drive assembly further comprises:

[0015] The reduction box is arranged on the side of the first body facing the water pump and the air pump, and the water pump and the air pump are connected to the first drive shaft through the reduction box. The water pump and the air pump share the reduction box, so that the drive assembly can be further miniaturized.

[0016] In some embodiments, the motor comprises:

[0017] A second body, the water pump and the air pump are respectively arranged on both sides of the second body;

[0018] The second drive shaft is rotatably connected to the second body, and the second drive shaft protrudes toward the water pump and the air pump relative to the second body, and is connected to the water pump and the air pump respectively. In this way, the water pump and the air pump can be synchronously driven by the motor, so that when the water pump is working, the air pump can work synchronously to achieve synchronous pressurization of the liquid.

[0019] In some embodiments, the water pump is a diaphragm pump or a peristaltic pump; and / or, the air pump is a diaphragm pump or a peristaltic pump. Selecting these two types of pumps can improve the efficiency of pumping liquid and pumping air, reduce maintenance costs, and meet the application requirements of the floor brush.

[0020] In some embodiments, one of the water pump and the air pump is a diaphragm pump and the other is a peristaltic pump, and the diaphragm pump is disposed on a side of the peristaltic pump away from the first body. Due to the different structural limitations of the peristaltic pump and the diaphragm pump, the pump directly connected to the motor needs to be designed as a peristaltic pump, and the diaphragm pump is connected to the output shaft in the middle of the peristaltic pump to achieve the sharing of the output shaft of the motor.

[0021] In some embodiments, the air inlet pipeline has an air inlet, and the air pump assembly can inhale water vapor from the accommodating chamber through the air inlet. The air inlet of the air inlet pipeline is located in the accommodating chamber. When the air pump is pumping air, air is inhaled through the air inlet of the air inlet pipeline, and the water vapor in the accommodating chamber can be sucked away, thereby reducing the water vapor in the accommodating chamber, reducing the air humidity in the accommodating chamber, improving the working environment of the electronic components in the floor brush, and improving the safety and service life of the electronic components, thereby improving the service life of the floor brush.

[0022] In some embodiments, the housing is further provided with a rolling brush cavity, the rolling brush is arranged in the rolling brush cavity, the housing includes an isolation component, and the isolation component separates the accommodating cavity and the rolling brush cavity;

[0023] The air inlet is arranged on a side of the air inlet pipeline close to the isolation component. The air inlet is arranged closer to the isolation component so that the water vapor overflowing from the rolling brush chamber is sucked away from the air inlet by the pump air component before it has time to fully diffuse in the accommodating chamber. Thus, the amount of water vapor in the accommodating chamber is further reduced, and the air humidity in the accommodating chamber is lowered.

[0024] In some embodiments, the floor brush device further comprises a circuit board disposed in the accommodating cavity, and the air inlet is disposed on a side of the air inlet pipeline close to the circuit board. The air inlet of the air inlet pipeline is made closer to the circuit board, making it easier to inhale water vapor around the circuit board.

[0025] In some embodiments, the air intake pipeline has a plurality of air intake ports arranged at intervals; and / or,

[0026] The pump air assembly includes a plurality of the air inlet pipelines, each of which has an air inlet. Thus, the plurality of air inlets can be dispersedly arranged at different positions in the accommodating chamber, so that water vapor can be absorbed from different positions of the accommodating chamber synchronously, so that the water vapor at different positions of the accommodating chamber is reduced simultaneously.

[0027] Among them, the flow rate and flow velocity of water vapor flowing through each air inlet are related to the effective cross-sectional area through which water vapor can pass at each air inlet. The effective cross-sectional area is the flow cross-sectional area of ​​each air inlet, which represents the size of the available space at each air inlet that can allow water vapor to flow through.

[0028] In some embodiments, the total flow cross-sectional area S1 of the air inlet satisfies: 0.8 mm 2 ≤S1≤28mm 2 . Set S1 at 0.8mm 2 Up to 28mm 2Within the range, it can avoid the inhalation area being too concentrated, and it can also avoid insufficient air volume at the air inlet, resulting in too slow inhalation speed, thereby achieving a balance between the inhalation speed of water vapor inhaled by the air inlet and the amount of water vapor entering, and obtaining a better water vapor absorption effect. Among them, the total flow cross-sectional area of ​​the air inlet is the sum of the flow cross-sectional areas of all air inlets.

[0029] In some embodiments, the mixing pipeline has a first interface and a second interface, and the first interface and the second interface are arranged in sequence along the flow direction of the fluid in the mixing pipeline;

[0030] The air outlet end of the air outlet pipeline is connected to the first interface, and the liquid outlet end of the liquid outlet pipeline is connected to the second interface. This arrangement enables the liquid to be in front and the water vapor to be in the back, so that the water vapor can impact the liquid from the back, thereby improving the pressurization effect on the liquid and improving the smoothness of the liquid supply.

[0031] In some embodiments, the mixing pipeline includes a straight-line section extending in a straight line, and the first interface and the second interface are arranged in the straight-line section. In this way, the water vapor behind the liquid can impact the liquid in front along the straight line of the fluid flow, thereby further improving the pressurization effect on the liquid and improving the smoothness of the liquid supply.

[0032] In some embodiments, the floor brush device further comprises a three-way valve, and the liquid outlet pipeline, the air outlet pipeline and the mixing pipeline are interconnected through the three-way valve. By providing a three-way valve to directly connect the liquid outlet pipeline, the mixing pipeline and the air outlet pipeline, the structure is simpler, easy to process and manufacture, and the production cost is reduced.

[0033] In some embodiments, the flow cross-sectional area S2 of the liquid outlet pipeline satisfies: 3mm 2 ≤S2≤9mm 2 By controlling the flow cross-sectional area S2 of the liquid outlet pipeline within the above range, combined with the operating conditions of the water pump and the air pump, the liquid supply flow range can be controlled within 20-1000mL, and the pressure value can be controlled within 1.5-2.0bar (pressure unit, 1 bar (bar) = 100 kilopascals (kPa) = 10 Newtons / square centimeter (N / cm2) = 0.1MPa), which can meet the application requirements of floor brushes.

[0034] In some embodiments, the flow cross-sectional area S3 of the outlet pipe satisfies: 0.8 mm 2 ≤S3≤12.6mm 2 By controlling the flow cross-sectional area S3 of the air outlet pipeline within the above range, combined with the operating conditions of the water pump and the air pump, the liquid supply flow rate range can be controlled within 20-1000mL and the pressure value can be controlled within 1.5-2.0bar, which can meet the application requirements of the floor brush.

[0035] In some embodiments, the flow cross-sectional area of ​​the liquid outlet pipeline is S2, and the flow cross-sectional area of ​​the gas outlet pipeline is S3, which satisfies: 0.8≤S2 / S3≤1.4. Controlling the ratio of S2 / S3 within the range of 0.8 to 1.4 can make the pressure of the gas outlet pipeline and the liquid outlet pipeline more matched, the liquid can enter the mixing pipeline more smoothly, and the pressure of the liquid is not too high compared to the water vapor, which can effectively avoid the pressure of the gas outlet pipeline and the obstruction of the water vapor, thereby balancing the pressurization effect on the liquid and the suction effect on the water vapor.

[0036] In a second aspect of the present application, an embodiment of the present application provides a cleaning device, comprising the floor brush water vapor elimination device as described in any of the above embodiments.

[0037] In a third aspect of the present application, an embodiment of the present application provides a cleaning system, comprising a base station and the cleaning device as described above, wherein the base station is used to supply power to the cleaning device and / or clean the cleaning device.

[0038] Beneficial effects: In the first aspect of the present application, the floor brush device provided by the embodiment of the present application is used for a floor brush, and a mixing pipeline connected to its liquid outlet pipeline is provided in the pump liquid assembly of the floor brush, and the pump liquid assembly can supply liquid to the roller brush through the mixing pipeline. The pump air assembly of the floor brush device is arranged in the accommodating chamber, and the gas outlet pipeline of the pump air assembly is connected to the mixing pipeline, and the gas outlet end of the gas outlet pipeline and the liquid outlet end of the liquid outlet pipeline are connected in the mixing pipeline. Thus, when the water pump of the pump liquid assembly pumps liquid, the liquid enters the mixing pipeline through the liquid outlet pipeline, and the gas pumped out by the pump air assembly enters the mixing pipeline from the gas outlet pipeline, which can impact the liquid in the mixing pipeline, pressurize the liquid, increase the pressure of the liquid, and enhance the flow power of the liquid, so that the liquid can be evenly and continuously supplied to the roller brush, so that the roller brush can be fully soaked by the liquid, and the liquid on the roller brush is more evenly distributed, thereby improving the cleaning effect of the floor brush on the surface to be cleaned and the self-cleaning effect of the roller brush. In addition, by connecting the motor of the driving assembly to the water pump and the air pump respectively, power sharing is achieved. Therefore, there is no need to set up independent power devices for water pumps or air pumps, which simplifies the power structure, reduces space occupation, makes the internal space layout of the accommodating cavity more reasonable, and is also conducive to the lightweight of the floor brush device and improves user experience. In addition, by sharing the motor between the water pump and the air pump, spare parts can be reduced, costs can be reduced, and the failure rate caused by too many electronic devices can be reduced to a certain extent.

[0039] In the second aspect of the present application, the cleaning device provided in the embodiment of the present application includes the above-mentioned floor brush device, and thus can have all the technical features and technical effects of the floor brush device, so that the cleaning device has better cleaning and self-cleaning effects, and the whole machine is lighter, thereby improving the user experience.

[0040] In the third aspect of the present application, the cleaning system provided in the embodiment of the present application includes a base station and the above-mentioned cleaning device, and the base station is used to supply power to the cleaning device and / or clean the cleaning device. Accordingly, the cleaning system can have all the technical features and technical effects of the above-mentioned cleaning device, so that the cleaning system has better cleaning and self-cleaning effects, and the whole machine is lighter, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 A schematic diagram of the floor brush structure provided in an embodiment of the present application;

[0043] Figure 2 A schematic diagram of the internal structure of a floor brush provided in the first embodiment of the present application;

[0044] Figure 3 A schematic diagram of the connection structure of a liquid pump component in a floor brush and an air pump component of a floor brush device provided in the first embodiment of the present application;

[0045] Figure 4 for Figure 3 A schematic diagram of the connection structure of the water pump, the air pump and the drive assembly in the illustrated embodiment;

[0046] Figure 5 for Figure 3 A front view of the connection structure of the water pump, the air pump and the drive assembly in the illustrated embodiment;

[0047] Figure 6 for Figure 5 a perspective schematic diagram of the structure shown;

[0048] Figure 7 This is a schematic diagram of the connection structure of the water pump, the air pump and the driving assembly in the second embodiment of the present application;

[0049] Figure 8 A schematic diagram of the internal structure of a floor brush provided in the third embodiment of the present application;

[0050] Fig. 9 A schematic diagram of the connection structure of a liquid pump assembly in a floor brush and an air pump assembly of a floor brush device provided in the third embodiment of the present application;

[0051] Fig.10 for Fig. 9 A schematic diagram of the connection structure of the water pump, the air pump and the drive assembly in the illustrated embodiment;

[0052] Fig.11 for Fig. 9 A front view of the connection structure of the water pump, the air pump and the drive assembly in the illustrated embodiment;

[0053] Fig.12 for Fig.11 a perspective schematic diagram of the structure shown;

[0054] Fig.13 for Figure 2 Schematic diagram of the exploded structure of the internal parts of the middle floor brush;

[0055] Fig.14 for Figure 2 A schematic diagram of the internal structure of the middle floor brush viewed from another angle;

[0056] Fig.15 A schematic diagram of the internal structure of a floor brush provided in the fourth embodiment of the present application;

[0057] Fig.16 This is a schematic diagram of the connection structure of the mixing pipeline, the liquid outlet pipeline and the gas outlet pipeline in the fifth embodiment of the present application;

[0058] Fig.17 for Fig.16 Cross-sectional view of the connection structure.

[0059] Figure numerals: 10-floor brush device; 100-housing; 110-accommodating chamber; 120-roller brush chamber; 200-roller brush; 300-pump-liquid assembly; 310-water pump; 320-liquid outlet pipeline; 330-mixing pipeline; 331-first interface; 332-second interface; 333-DC section; 340-liquid inlet pipeline; 350-three-way valve; 400-pump-air assembly; 410-air pump; 420-air outlet pipeline; 430-air inlet pipeline; 431-air inlet; 500-isolation assembly; 600-circuit board; 700-drive assembly; 710-motor; 711-first body; 712-first drive shaft; 713-second body; 714-second drive shaft; 720-reduction gearbox. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0061] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 on the present application. In the description of the present application, "plurality" means two or more than two, and at least one means one, two or more than two, unless otherwise clearly and specifically defined.

[0062] In addition, it should be noted that in the description of this application, "liquid" can refer to water, aqueous solution or other types of solvent-based cleaning liquid, and the specific liquid type can be selected according to the actual use environment requirements of the floor brush. The terms "first embodiment" and "second embodiment" are only used to name the embodiments for the convenience of description, and do not imply that there is an order of importance between the embodiments.

[0063] Water pumps are extremely important in production and life. They are used to supply water to various equipment, systems and places, including agriculture, industry, commerce and households. However, there may be some problems when water pumps supply water, such as insufficient water pressure and uneven water flow. In the floor brushes of cleaning equipment such as floor scrubbers, the water supply and pressure of the water pump are insufficient to ensure uniform water discharge, which leads to poor cleaning effect and affects the quality of cleaning. Although the use of a booster pump can solve the problem of insufficient water pressure, the booster pump has a complex structure, large volume and high cost, and is not suitable for the floor brushes of cleaning equipment. In addition, in the floor brush, water vapor will affect the safety of electronic components and is not conducive to the stability and service life of the floor brush. In particular, compared with the use state of cleaning the surface to be cleaned, the self-cleaning state of the floor scrubber will first use a large amount of water pumped through the water distributor to clean the roller brush, and then dry the wet roller brush through drying. Therefore, during the cleaning and drying process of self-cleaning, more water vapor may be generated to enter the floor brush receiving chamber and flow in the floor brush receiving chamber. The floor brush cavity is equipped with electronic components that are sensitive to water vapor, such as control boards, circuit boards, and motors for realizing various functions. Therefore, during the self-cleaning process, the increase and flow of water vapor may pose a greater safety hazard to electronic components.

[0064] In view of this, an embodiment of the present application provides a floor brush device, which is intended to overcome at least one of the above technical problems. The floor brush device can be the main cleaning structure of various cleaning equipment such as floor scrubbers and mops used for environmental cleaning in commercial, household or other scenarios.

[0065] Please also read Figure 1 , Figure 2 and Figure 3In the first embodiment of the present application, the floor brush device 10 includes a housing 100 , a roller brush 200 , a liquid pump assembly 300 , an air pump assembly 400 and a driving assembly 700 .

[0066] The shell 100 is the main structural component of the floor brush device 10, and is used to assemble various components including the roller brush 200 and the pump liquid assembly 300. The shell 100 can support the various components connected thereto to maintain the structural stability and integrity of the floor brush device 10. The shell 100 is provided with a accommodating cavity 110 inside, which can accommodate components such as the pump liquid assembly 300, the pump air assembly 400 and the drive assembly 700. The shell 100 can also protect the various components accommodated therein to avoid damage to the components due to collision during use. In addition, the shell 100 can also serve as the appearance part of the floor brush device 10, which can enhance the practicality and aesthetics of the floor brush device 10.

[0067] The roller brush 200 is a main component of the floor brush device 10 for cleaning the surface to be cleaned. The roller brush 200 is arranged outside the accommodating chamber 110 and is rotatably connected to the housing 100. The roller brush 200 cleans the surface to be cleaned by rotating and rubbing against the surface to be cleaned. In this embodiment, the rotation axis of the roller brush 200 may be roughly parallel to the surface to be cleaned. In some other embodiments, the rotation axis of the roller brush 200 may also be roughly perpendicular to the surface to be cleaned. Specifically, the assembly and rotation method of the roller brush 200 may be set according to different requirements for cleaning methods in different use environments.

[0068] The pump liquid assembly 300 is arranged in the accommodating chamber 110, and is a component in the floor brush device 10 for supplying liquid to the roller brush 200. It can extract liquid from a liquid source such as a water tank, and supply the liquid to the roller brush 200, so that the roller brush 200 can achieve wet cleaning of the surface to be cleaned. Specifically, the pump liquid assembly 300 includes a water pump 310, a liquid outlet pipeline 320 connected to the water pump 310, and a mixing pipeline 330 connected to the liquid outlet pipeline 320, and the mixing pipeline 330 is used to supply liquid to the roller brush 200. That is, the liquid extracted by the water pump 310 flows into the mixing pipeline 330 via the liquid outlet pipeline 320, and is supplied to the roller brush 200 via the mixing pipeline 330. Among them, the pump liquid assembly 300 can also include a liquid inlet pipeline 340, one end of which is connected to the water pump 310, and the other end can be connected to a liquid source such as a water tank to extract liquid when the water pump 310 is working. In this embodiment, the pump assembly 300 can pump the liquid into the water divider in the floor brush device 10, and supply the liquid to the roller brush 200 through the water divider. In some other embodiments, the pump assembly 300 can also be used to spray the liquid directly on the roller brush 200 to supply the liquid to the roller brush 200; the liquid can also be sprayed on the surface to be cleaned near one side of the roller brush 200, and the roller brush 200 can be rotated to dip the liquid to supply the liquid to the roller brush 200.

[0069] The pump air assembly 400 is arranged in the accommodating chamber 110, and the pump air assembly 400 includes an air pump 410, an air outlet pipeline 420 and an air inlet pipeline 430 connected to the air pump 410, and the air outlet end of the air outlet pipeline 420 and the liquid outlet end of the liquid outlet pipeline 320 are connected to the mixing pipeline 330. Therefore, when the air pump 410 is working, the air flow can be pumped into the mixing pipeline 330 along the air outlet pipeline 420, and can squeeze and impact the liquid in the mixing pipeline 330, pressurize the liquid, increase the pressure of the liquid, and improve the flow power of the liquid, so that the liquid can be evenly and continuously supplied to the roller brush 200, so that the roller brush 200 can be fully soaked with the liquid, and the liquid on the roller brush 200 is more evenly distributed, thereby improving the cleaning effect of the floor brush device 10 on the surface to be cleaned and the self-cleaning effect of the roller brush 200.

[0070] The driving assembly 700 is arranged in the accommodating chamber 110, and is used to drive the water pump 310 and the air pump 410. The driving assembly 700 includes a motor 710, and the motor 710 is connected to the water pump 310 and the air pump 410 to drive the water pump 310 and the air pump 410. That is to say, in the floor brush device 10, the water pump 310 and the air pump 410 share the same driving assembly 700. By connecting the motor 710 of the driving assembly 700 to the water pump 310 and the air pump 410 respectively, the power sharing is realized. Thus, there is no need to set up an independent power device for the water pump 310 or the air pump 410, which simplifies the power structure, reduces the space occupation, and can make the internal space layout of the accommodating chamber 110 more reasonable, which is also conducive to the lightweight of the floor brush device 10 and improves the user experience. In addition, by sharing the motor 710 between the water pump 310 and the air pump 410, spare parts can be reduced, costs can be reduced, and the failure rate caused by too many electronic devices can be reduced to a certain extent.

[0071] Please also read Figures 3 to 6In the first embodiment, the motor 710 includes a first body 711 and a first drive shaft 712, and the first drive shaft 712 is rotatably connected to the first body 711. Specifically, the motor 710 can be a brushless motor or a brushed motor. By externally powering the first body 711, the first drive shaft 712 can be driven to rotate the first drive shaft 712. The water pump 310 and the air pump 410 are arranged on one side of the first body 711, and the first drive shaft 712 protrudes toward the water pump 310 and the air pump 410 relative to the first body 711, and connects the water pump 310 and the air pump 410. The water pump 310 and the air pump 410 are assembled on the same side of the motor 710, and the water pump 310 and the air pump 410 can be driven synchronously through the first drive shaft 712, so that when the water pump 310 is working, the air pump 410 can work synchronously to achieve synchronous pressurization of the liquid. Furthermore, the space on the other side of the first body 711 is not occupied by the water pump 310 or the air pump 410, and a pole piece can be provided on this side for external power supply. The pole piece only occupies the space on one side, thereby further simplifying the structure of the motor 710 and reducing costs.

[0072] Optionally, one of the water pump 310 and the air pump 410 is located on a side of the other away from the first body 711, and the first drive shaft 712 is connected in series with the water pump 310 and the air pump 410. This arrangement allows the water pump 310, the air pump 410 and the first body 711 to be arranged in a straight line, reducing the space occupied in the horizontal direction (perpendicular to the direction of the first drive shaft 712), being more suitable for the floor brush structure of cleaning equipment such as a floor scrubber, and being easier to assemble in the accommodating cavity 110.

[0073] See also Figure 7 , when the rotation speeds of the water pump 310 and the air pump 410 are constant, the motor 710 only needs to be equipped with a reduction box 720, which can further reduce the number of components of the motor 710, reduce the cost, and further reduce the size of the motor 710. Specifically, in the second embodiment, the drive assembly 700 also includes a reduction box 720, which is arranged on the side of the first body 711 facing the water pump 310 and the air pump 410, and the water pump 310 and the air pump 410 are connected to the first drive shaft 712 through the reduction box 720. By sharing the reduction box 720 with the air pump 410, the drive assembly 700 can be further miniaturized.

[0074] Please also read Figures 8 to 12In the third embodiment, the motor 710 includes a second body 713 and a second drive shaft 714, the water pump 310 and the air pump 410 are respectively arranged on both sides of the second body 713, and the second drive shaft 714 is rotatably connected to the second body 713, and protrudes toward the water pump 310 and the air pump 410 respectively relative to the second body 713 to connect the water pump 310 and the air pump 410 respectively. In this embodiment, the motor 710 can be a brushed motor or a brushless motor. The second drive shaft 714 of the motor 710 can penetrate its second body 713, so that both sides of the second body 713 form a driving end, and the water pump 310 and the air pump 410 are respectively arranged on both sides of the second body 713, and are respectively connected to the second drive shaft 714. In this way, the water pump 310 and the air pump 410 can be synchronously driven by the motor 710, so that when the water pump 310 is working, the air pump 410 can work synchronously to achieve synchronous pressurization of the liquid.

[0075] Optionally, the water pump 310 may be a diaphragm pump or a peristaltic pump; and / or, the air pump 410 may also be a diaphragm pump or a peristaltic pump. The diaphragm pump has the advantages of good corrosion resistance, high efficiency and reliability, no leakage, processing of multiple media and strong self-priming ability, and the peristaltic pump has the advantages of positive delivery, high-precision metering, reversible operation, no blockage and low shear, etc. Selecting these two types of pumps can improve the efficiency of pumping liquid and pumping gas, reduce maintenance costs, and meet the actual application requirements of the floor brush device 10 and cleaning equipment.

[0076] In some embodiments, due to the different structural limitations of the peristaltic pump and the diaphragm pump, the pump directly connected to the motor 710 can be designed as a peristaltic pump, and the diaphragm pump is connected to the output shaft in the middle of the peristaltic pump to achieve the sharing of the output shaft of the motor 710. Specifically, one of the water pump 310 and the air pump 410 is a diaphragm pump and the other is a peristaltic pump, and the diaphragm pump is arranged on the side of the peristaltic pump away from the first body 711.

[0077] Please also read Fig.13 and Fig.14 In the first embodiment, the air inlet line 430 has an air inlet 431, and the air pumping assembly 400 is located in the accommodating chamber 110, so the air inlet 431 of the air inlet line 430 is also located in the accommodating chamber 110. When the air pump 410 is working to pump air, the air pump 410 inhales air through the air inlet 431 of the air inlet line 430, and can absorb the water vapor in the accommodating chamber 110, thereby reducing the water vapor in the accommodating chamber 110, reducing the air humidity in the accommodating chamber 110, improving the working environment of the electronic components in the floor brush device 10, and improving the safety and service life of the electronic components, thereby improving the service life of the floor brush device 10.

[0078] In particular, when the floor brush device 10 performs self-cleaning of the roller brush 200, the pump liquid component 300 needs to increase the pump liquid volume to supply a larger amount of liquid to the roller brush 200. In this process, the liquid flow rate and flow rate of the mixing pipeline 330 increase, the pump air volume of the pump air component 400 also increases accordingly, and the air intake volume of the air inlet 431 also increases accordingly, and the absorption efficiency of water vapor is correspondingly improved, and more water vapor can be inhaled, so that it can cope with more water vapor generated by cleaning the roller brush 200, forming a positive cycle of water vapor absorption, keeping the air humidity in the accommodating chamber 110 always in a suitable state, and ensuring the stability of the operation of the floor brush device 10.

[0079] Specifically, the effect of reducing the water vapor in the accommodating cavity 110 of the floor brush device 10 can be verified by the following test, and the test is as follows:

[0080] 1. Test preparation: prepare a floor scrubber to be tested, and the floor brush device 10 of the test floor scrubber is the floor brush device 10 of the embodiment of the present application. Open the housing 100 of the floor brush device 10, install a hygrometer at the circuit board 600 in the accommodating cavity 110, assemble the sensor port of the hygrometer at the air inlet 431, assemble the housing 100, and keep the accommodating cavity of the floor brush device 10 in a normal assembled and sealed state.

[0081] 2. When the floor brush device 10 is in the self-cleaning state, the air pump 410 is not turned on, and the change in humidity value before and after a self-cleaning cycle is observed. The test data is shown in Table 1:

[0082]

[0083] 3. After the self-cleaning is completed, the air pump 410 is turned on, and the running time of the air pump 410 and the humidity change value are observed, and the data are recorded, as shown in Table 2:

[0084]

[0085] The above experiments have proven that the air pump assembly 400 can absorb water vapor in the accommodating chamber 110 through the air inlet 431 , thereby reducing the air humidity in the accommodating chamber 110 .

[0086] Please also read Fig.13 and Fig.14In the first embodiment, the floor brush device 10 further includes a circuit board 600 disposed in the accommodating cavity 110. The circuit board 600 is used to carry electronic components and arrange the internal circuit of the floor brush device 10. The air humidity near the circuit board 600 directly affects the safety of the circuit thereon. In this embodiment, the air inlet 431 of the air inlet pipeline 430 is disposed on the side of the air inlet pipeline 430 close to the circuit board 600, so that the air inlet 431 can be closer to the circuit board 600 and more easily absorb the water vapor around the circuit board 600. Therefore, it is possible to more effectively reduce the air humidity around the circuit board 600, improve the circuit safety of the circuit board 600, improve its service life, and thus improve the service life of the floor brush device 10. Specifically, the air inlet pipeline 430 can be arranged so that its air inlet end extends toward the vicinity of the circuit board 600 and extends all the way to the side of the circuit board 600, thereby making the air inlet 431 of the air inlet pipeline 430 closer to the circuit board 600 and more easily inhaling the water vapor around the circuit board 600.

[0087] It should be noted that the air inlet 431 is disposed on a side of the air inlet pipeline 430 close to the circuit board 600. The air inlet 431 only needs to be located near the circuit board 600 and does not need to be directly facing the circuit board 600. Fig.14 As shown, the air inlet 431 is not directly facing the surface of the circuit board 600, but is arranged so that the central axis of the air inlet 431 is roughly parallel to the surface of the circuit board 600. This can reduce the direct erosion of the surface of the circuit board 600 caused by long-term disturbance of the airflow at the air inlet 431, and further improve the service life of the circuit board 600.

[0088] See also Fig.15 In the fourth embodiment, the housing 100 is further provided with a roller brush chamber 120, and the roller brush 200 is arranged in the roller brush chamber 120. The roller brush chamber 120 is a receiving area with one side open, and the receiving area has an opening at least on the side of the housing 100 facing the surface to be cleaned, so that the roller brush 200 arranged in the roller brush chamber 120 can protrude through the opening to clean the surface to be cleaned. The housing 100 also includes an isolation component 500, and the isolation component 500 separates the receiving chamber 110 and the roller brush chamber 120 to isolate the receiving chamber 110 and the roller brush chamber 120. The isolation component 500 can be an integrated structure with other parts of the housing 100, for example, the isolation component 500 can be a part of the plate of the housing 100 located between the receiving chamber 110 and the roller brush chamber 120, or it can be a separate structure with other parts of the housing 100, for example, the isolation component 500 can include components such as a water divider. That is to say, in the description of the present application, all structures located between the accommodating cavity 110 and the rolling brush cavity 120 in the floor brush device 10 that can be used to separate the two cavities are referred to as isolation components 500 .

[0089] Since the roller brush 200 is arranged in the roller brush chamber 120, generally speaking, the water vapor accumulated in the roller brush chamber 120 is more than other parts of the floor brush device 10. Although the isolation component 500 separates the accommodating chamber 110 and the roller brush chamber 120, there may still be some assembly gaps on it, so that the water vapor in the roller brush chamber 120 can overflow into the accommodating chamber 110. In the fourth embodiment, by arranging the air inlet 431 on the side of the air inlet pipeline 430 close to the isolation component 500, the air inlet 431 is arranged closer to the isolation component 500, so that the water vapor overflowing from the roller brush chamber 120 has not yet been fully diffused in the accommodating chamber 110, that is, it has been sucked away from the air inlet 431 by the pump air component 400. Thereby, the amount of water vapor in the accommodating chamber 110 is further reduced, the air humidity in the accommodating chamber 110 is reduced, and the waterproof safety of electronic devices such as the circuit board 600 and the motor 710 is improved.

[0090] Please refer again Fig.15 In the fourth embodiment, the air inlet 431 may be opened directly toward the isolation assembly 500. After the water vapor passes through the isolation assembly 500, it enters the air inlet 431 more directly, further improving the absorption efficiency of the water vapor.

[0091] In some embodiments, the air inlet line 430 has a plurality of air inlets 431 arranged at intervals. When the air pump 410 is working, negative pressure can be generated at the plurality of air inlets 431, so that water vapor can be inhaled. In addition, the plurality of air inlets 431 are arranged at intervals, so that they can be dispersedly arranged at different positions of the accommodating chamber 110. It is possible to absorb water vapor from different positions of the accommodating chamber 110 synchronously, so that the water vapor at different positions of the accommodating chamber 110 is reduced at the same time. This improves the absorption speed of water vapor in the accommodating chamber 110, quickly reduces the air humidity in the accommodating chamber 110, and keeps each position of the accommodating chamber 110 in a relatively dry environment, which is conducive to further improving the working safety and stability of electronic components.

[0092] In some embodiments, the pump air assembly 400 includes a plurality of air inlet pipelines 430, each of which has an air inlet 431. When the air pump 410 is working, the air pump 410 can inhale air synchronously through the plurality of air inlet pipelines 430, so that the air inlet 431 of each air inlet pipeline 430 can absorb water vapor synchronously. By arranging the plurality of air inlet pipelines 430 at different positions in the accommodating chamber 110, the plurality of air inlets 431 of the plurality of air inlet pipelines 430 can be used to synchronously absorb water vapor from different positions of the accommodating chamber 110, and the water vapor at different positions of the accommodating chamber 110 can also be reduced at the same time. Thereby, the absorption speed of water vapor in the accommodating chamber 110 is improved, the air humidity in the accommodating chamber 110 is quickly reduced, and each position of the accommodating chamber 110 is kept in a relatively dry environment, which is conducive to further improving the working safety and stability of electronic components. In this embodiment, a plurality of air inlets 431 can be arranged at intervals on each air inlet pipeline 430 to further disperse the positions of air inhalation, thereby further improving the effect of absorbing water vapor.

[0093] In the above embodiments, optionally, the total flow cross-sectional area S1 of the air inlet 431 satisfies: 0.8 mm 2 ≤S1≤28mm 2 That is, S1 can be 0.8mm 2 , 1mm 2 , 2mm 2 , 3mm 2 , 4mm 2 , 5mm 2 、6mm 2 , 7mm 2 , 8mm 2 , 9mm 2 , 10mm 2 、11mm 2 , 12mm 2 、13mm 2 , 14mm 2 , 15mm 2 、16mm 2 、17mm 2 、18mm 2 、19mm 2 , 20mm 2 , 21mm 2 , 22mm 2 、23mm 2 , 24mm 2 , 25mm 2 、26mm 2 、27mm 2 、28mm 2Any area value or the range value between any two area values. Among them, the total flow cross-sectional area S1 of the air inlet 431 can be obtained by measuring the opening area at the air inlet 431. When only one air inlet 431 is provided in the pump air component 400, the total flow cross-sectional area S1 can be obtained by measuring the opening area of ​​the air inlet 431; when only multiple air inlets 431 are provided in the pump air component 400, the total flow cross-sectional area S1 can be obtained by measuring the area of ​​each air inlet 431 respectively and then summing them up. The opening area at the air inlet 431 can be measured by different methods according to the different shapes of the air inlet 431. For example, if the air inlet 431 is a regular shape such as a circle or a square, the size of the corresponding shape is measured by a conventional measurement method, and the area is calculated. If the air inlet 431 is an irregular shape, an image measurement method can be used to first collect an image of the air inlet 431, and then the image is processed and the area is measured by image processing software.

[0094] Setting the total flow cross-sectional area S1 of the air inlet 431 within the above range can balance the air intake speed and the amount of water vapor entering the air inlet 431. Specifically, when S1 is set within the above range, combined with the use conditions, the closer the value of S1 is to 0.8 mm 2 The faster the water vapor enters the air inlet 431, the greater the impact on the liquid in the mixing pipe 330, and the better the pressurization effect. 2 The larger the aperture of the air inlet 431 is, the higher the coverage of different positions in the accommodating cavity 110 of the floor brush device 10 can be, and the greater the water vapor absorption effect will be. 2 Up to 28mm 2 Within the range, it can prevent the suction area from being too concentrated and the air volume at the air inlet 431 from being insufficient, resulting in a too slow suction speed. Thus, the suction speed of the water vapor sucked in by the air inlet 431 and the amount of water vapor entering are balanced to obtain a better water vapor absorption effect.

[0095] Please also refer to 16 and Fig.17 In the fifth embodiment, the mixing pipeline 330 has a first interface 331 and a second interface 332. The first interface 331 and the second interface 332 are connected along the flow direction of the fluid in the mixing pipeline 330 (ie Fig.17The air outlet end of the air outlet pipeline 420 is connected to the first interface 331, so that the air pump component 400 can pump water vapor from the first interface 331 into the mixing pipeline 330, and make the water vapor flow forward along the fluid flow direction indicated by the X arrow. The liquid outlet end of the liquid outlet pipeline 320 is connected to the second interface 332, and the liquid pumped into the liquid outlet pipeline 320 by the water pump 310 can enter the mixing pipeline 330 from the second interface 332 and flow forward along the fluid flow direction indicated by the X arrow. This arrangement can make the liquid in front and the water vapor in the back, so that the water vapor can impact the liquid from the back, thereby improving the pressurization effect on the liquid and improving the smoothness of the liquid supply.

[0096] Optional, such as Fig.17 As shown, the mixing pipeline 330 includes a straight section 333 extending in a straight line, and the first interface 331 and the second interface 332 are arranged in the straight section 333. In this way, the water vapor located behind the liquid can impact the liquid located in front along the straight line of the fluid flow, thereby further improving the pressurization effect on the liquid and improving the smoothness of the liquid supply.

[0097] Please also read Figures 3 to 9 In some embodiments, the floor brush device further includes a three-way valve 350, and the liquid outlet pipeline 320, the gas outlet pipeline 420, and the mixing pipeline 330 are interconnected through the three-way valve 350. By providing the three-way valve 350, the liquid outlet pipeline 320, the mixing pipeline 330, and the gas outlet pipeline 420 are directly connected, the structure is simpler, easy to process and manufacture, and the production cost is reduced.

[0098] In some embodiments, the flow cross-sectional area S2 of the liquid outlet pipeline 320 satisfies: 3 mm 2 ≤S2≤9mm 2 That is, S2 can be 3mm 2 , 4mm 2 , 5mm 2 , 6mm 2 , 7mm 2 , 8mm 2 , 9mm 2 By controlling the flow cross-sectional area S2 of the liquid outlet pipeline 320 within the above range, combined with the operating conditions of the water pump 310 and the air pump 410, the liquid supply flow rate range can be controlled within 20-1000mL, and the pressure value can be controlled within 1.5-2.0bar, which can meet the application requirements of the floor brush device 10.

[0099] In some embodiments, the flow cross-sectional area S3 of the air outlet pipe 420 satisfies: 0.8 mm 2 ≤S3≤12.6mm 2 That is, S3 can be 0.8mm 2, 0.9mm 2 , 1.0mm 2 , 2.0mm 2 , 3.0mm 2 , 4.0mm 2 , 5.0mm 2 、6.0mm 2 , 7.0mm 2 、8.0mm 2 、9.0mm 2 , 10mm 2 、11mm 2 , 12mm 2 , 12.6mm 2 By controlling the flow cross-sectional area S3 of the air outlet pipe 420 within the above range, combined with the use conditions of the water pump 310 and the air pump 410, the liquid supply flow rate range can be controlled within 20-1000mL, and the pressure value can be controlled within 1.5-2.0bar, which can meet the application requirements of the floor brush device 10.

[0100] Among them, the flow cross-sectional area S2 of the liquid outlet pipeline 320 and the flow cross-sectional area S3 of the gas outlet pipeline 420 can be obtained by measuring the interface area of ​​the connection position of the liquid outlet pipeline 320, the gas outlet pipeline 420 and the mixing pipeline 330 respectively. The interface area can be measured by different methods according to the different shapes of the interface. For example, if the interface is a regular shape such as a circle or a square, the size of the corresponding shape is measured by a conventional measurement method to calculate the area. If the interface is an irregular shape, an image measurement method can be used to first collect images at the interface, and then process the image and measure the area through image processing software.

[0101] Optionally, in some embodiments, the flow cross-sectional area of ​​the liquid outlet pipeline 320 is S2, and the flow cross-sectional area of ​​the gas outlet pipeline 420 is S3, satisfying: 0.8≤S2 / S3≤1.4. That is, S2 / S3 can be any value among 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4 or a range value between any two values. According to the fluid mechanics characteristics, when the pressure is constant, the pressure is small where the fluid speed is fast, and the flow cross-sectional area of ​​the pipeline affects the fluid flow rate here. Controlling the ratio of S2 / S3 within the range of 0.8 to 1.4 can make the pressure of the gas outlet pipeline 420 and the liquid outlet pipeline 320 more matched, the liquid can enter the mixing pipeline 330 more smoothly, and the pressure of the liquid is not too large compared to the water vapor, which can effectively avoid the pressure of the gas outlet pipeline 420 and the obstruction of the water vapor, so as to balance the pressurization effect on the liquid and the suction effect on the water vapor. In the range of 0.8 to 1.4, the smaller the ratio of S2 / S3 is, the smaller the flow cross-sectional area of ​​the liquid outlet pipeline 320 is, and the liquid can more easily enter the mixing pipeline 330 to maintain the liquid supply effect; the larger the ratio of S2 / S3 is, the larger the flow cross-sectional area of ​​the liquid outlet pipeline 320 is, and the gas can more easily enter the mixing pipeline 330, and the water vapor suction effect is better.

[0102] Accordingly, the embodiment of the present application also provides a cleaning device, which can be an environmental cleaning device such as a floor scrubber, a floor mopping machine, etc. The cleaning device includes the floor brush device 10 of any of the above embodiments. Therefore, it can have all the technical features and technical effects of the floor brush device 10, so that the cleaning device has better cleaning and self-cleaning effects, and has better operating stability and service life, thereby improving the user experience.

[0103] Accordingly, the embodiment of the present application also provides a cleaning system, which includes a base station and the above-mentioned cleaning device, and the base station is used to supply power to the cleaning device and / or clean the cleaning device. The cleaning system can have all the technical features and technical effects of the above-mentioned cleaning device, so that the cleaning system has better cleaning and self-cleaning effects, and has better operating stability and service life, thereby improving the user experience.

[0104] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] The floor brush device, cleaning equipment and cleaning system provided in the embodiments of the present application are introduced in detail above, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A floor brush device, characterized in that: include: A housing (100) having a receiving chamber (110) therein; A rolling brush (200) is disposed outside the accommodating chamber (110) and is rotatably connected to the housing (100); a liquid pump assembly (300), disposed in the accommodating chamber (110), comprising a water pump (310), a liquid outlet pipeline (320) connected to the water pump (310), and a mixing pipeline (330) connected to the liquid outlet pipeline (320), wherein the mixing pipeline (330) is used to supply liquid to the rolling brush (200); A pump air assembly (400) is disposed in the accommodating chamber (110), the pump air assembly (400) comprising an air pump (410), an air outlet pipeline (420) and an air inlet pipeline (430) connected to the air pump (410), the air outlet end of the air outlet pipeline (420) and the liquid outlet end of the liquid outlet pipeline (320) being connected to the mixing pipeline (330); A driving assembly (700) is disposed in the accommodating chamber (110), wherein the driving assembly (700) comprises a motor (710), wherein the motor (710) is connected to the water pump (310) and the air pump (410) to drive the water pump (310) and the air pump (410).

2. The floor brush device according to claim 1, characterized in that: The motor (710) comprises: A first machine body (711), wherein the water pump (310) and the air pump (410) are arranged on one side of the first machine body (711); The first drive shaft (712) is rotatably connected to the first body (711). The first drive shaft (712) protrudes relative to the first body (711) toward the water pump (310) and the air pump (410), and connects the water pump (310) and the air pump (410).

3. The floor brush device according to claim 2, characterized in that: One of the water pump (310) and the air pump (410) is located on a side of the other away from the first machine body (711), and the first drive shaft (712) is connected in series with the water pump (310) and the air pump (410).

4. The floor brush device according to claim 2, characterized in that: The drive assembly (700) further comprises: A reduction box (720) is arranged on a side of the first body (711) facing the water pump (310) and the air pump (410), and the water pump (310) and the air pump (410) are connected to the first drive shaft (712) via the reduction box (720).

5. The floor brush device according to claim 1, characterized in that: The motor (710) comprises: A second machine body (713), the water pump (310) and the air pump (410) being respectively arranged on two sides of the second machine body (713); The second drive shaft (714) is rotatably connected to the second body (713). The second drive shaft (714) protrudes toward the water pump (310) and the air pump (410) relative to the second body (713) and is connected to the water pump (310) and the air pump (410) respectively.

6. The floor brush device according to any one of claims 1 to 5, characterized in that: The water pump (310) is a diaphragm pump or a peristaltic pump; and / or the air pump (410) is a diaphragm pump or a peristaltic pump.

7. The floor brush device according to claim 3, characterized in that: Of the water pump (310) and the air pump (410), one is a diaphragm pump and the other is a peristaltic pump. The diaphragm pump is arranged on a side of the peristaltic pump away from the first body (711).

8. The floor brush device according to claim 1, characterized in that: The air intake pipeline (430) has an air intake port (431), and the air pump assembly (400) can inhale water vapor from the accommodating chamber (110) through the air intake port (431).

9. The floor brush device according to claim 8, characterized in that: The housing (100) is further provided with a rolling brush chamber (120), the rolling brush (200) being arranged in the rolling brush chamber (120), and the housing (100) comprises an isolation component (500), wherein the isolation component (500) separates the accommodating chamber (110) and the rolling brush chamber (120); The air inlet (431) is arranged on a side of the air inlet pipeline (430) close to the isolation assembly (500).

10. The floor brush device according to claim 8, characterized in that: The floor brush device (10) further comprises a circuit board (600) arranged in the accommodating cavity (110), and the air inlet (431) is arranged on a side of the air inlet pipeline (430) close to the circuit board (600).

11. The floor brush device according to claim 8, characterized in that: The air intake pipeline (430) has a plurality of air intake ports (431) arranged at intervals; and / or, The air pump assembly (400) comprises a plurality of air intake pipelines (430), and each of the air intake pipelines (430) has an air intake port (431).

12. The floor brush device according to any one of claims 8 to 11, characterized in that: The total flow cross-sectional area S1 of the air inlet (431) satisfies: 0.8 mm 2 ≤S1≤28mm 2 .

13. The floor brush device according to claim 1, characterized in that: The mixing pipeline (330) has a first interface (331) and a second interface (332), and the first interface (331) and the second interface (332) are arranged in sequence along the flow direction of the fluid in the mixing pipeline (330); The air outlet end of the air outlet pipeline (420) is connected to the first interface (331), and the liquid outlet end of the liquid outlet pipeline (320) is connected to the second interface (332).

14. The floor brush device according to claim 13, characterized in that: The mixing pipeline (330) comprises a direct current section (333) extending in a straight line, and the first interface (331) and the second interface (332) are arranged in the direct current section (333).

15. The floor brush device according to claim 1, characterized in that: The floor brush device (10) further comprises a three-way valve (350), and the liquid outlet pipeline (320), the air outlet pipeline (420) and the mixing pipeline (330) are interconnected via the three-way valve (350).

16. The floor brush device according to claim 1, characterized in that: The flow cross-sectional area S2 of the liquid outlet pipeline (320) satisfies: 3 mm 2 ≤S2≤9mm 2 .

17. The floor brush device according to claim 1, characterized in that: The flow cross-sectional area S3 of the air outlet pipeline (420) satisfies: 0.8 mm 2 ≤S3≤12.6mm 2 .

18. The floor brush device according to claim 16 or 17, characterized in that: The flow cross-sectional area of ​​the liquid outlet pipeline (320) is S2, and the flow cross-sectional area of ​​the gas outlet pipeline (420) is S3, satisfying: 0.8≤S2 / S3≤1.

4.

19. A cleaning device, characterized in that: It comprises a floor brush device (10) as claimed in any one of claims 1 to 18.

20. A cleaning system, characterized in that: The cleaning device comprises a base station and the cleaning device as claimed in claim 19, wherein the base station is used to supply power to the cleaning device and / or clean the cleaning device.

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