Brush head, cleaning device, and cleaning system

Abstract

A brush head (04), a cleaning device (01), and a cleaning system. The brush head (04) comprises: a heater (4), the heater (4) being configured to heat a liquid; a first liquid pump (6), the first liquid pump (6) having an output end in communication with an input end of the heater (4) by means of a first pipeline, and being used for supplying the liquid to the heater (4); and a second liquid pump (7), the second liquid pump (7) having an output end in communication with an input end of the heater (4) by means of a second pipeline, and being used for supplying the liquid to the heater (4), wherein the first pipeline between the first liquid pump (6) and the heater (4) is of a first length, the second pipeline between the second liquid pump (7) and the heater (4) is of a second length, and the second length is shorter than the first length, so as to ensure that the pipeline is filled with the liquid when the heater (4) starts operating, thereby avoiding the problem of dry burning of the heater (4).

Description

Brush heads, cleaning equipment and cleaning systems

[0001] Cross-references to related applications

[0002] This disclosure claims priority to Chinese Patent Application No. 202520174589.0, filed on January 24, 2025, entitled "Brush Head, Cleaning Equipment and Cleaning System", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of cleaning equipment manufacturing technology, and in particular to a brush head, cleaning equipment and cleaning system. Background Technology

[0004] In the field of cleaning equipment manufacturing technology, the heaters in existing brush heads are prone to dry burning, which makes the heaters very easy to damage, resulting in poor reliability and service life of existing brush heads.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this disclosure is to provide a brush head, cleaning device, and cleaning system. The brush head, cleaning device, and cleaning system all possess high reliability and long service life.

[0007] This disclosure provides a brush head, including:

[0008] A heater configured to heat a liquid;

[0009] A first liquid pump, the output end of which is connected to the input end of the heater via a first pipeline, is used to supply liquid to the heater;

[0010] The second liquid pump, the output end of which is connected to the input end of the heater via a second pipeline, is used to supply liquid to the heater;

[0011] The first pipeline between the first liquid pump and the heater has a first length, and the second pipeline between the second liquid pump and the heater has a second length, the second length being less than the first length.

[0012] In one exemplary embodiment of this disclosure, the flow rate at the output of the second liquid pump is less than the flow rate at the output of the first liquid pump.

[0013] In one exemplary embodiment of this disclosure, the flow rate of the first liquid pump is in the range of 10 ml / min to 500 ml / min, and / or the flow rate of the second liquid pump is in the range of 0.5 ml / min to 9 ml / min.

[0014] In one exemplary embodiment of this disclosure, the second liquid pump and the heater are located on the same side of the brush head.

[0015] In one exemplary embodiment of this disclosure, the first liquid pump and the heater are located on the same side of the brush head.

[0016] In one exemplary embodiment of this disclosure, the second liquid pump is located between the first liquid pump and the heater.

[0017] In one exemplary embodiment of this disclosure, the brush head further includes:

[0018] Water supply tank;

[0019] The first multi-port is connected to the first port of the first multi-port via a third pipeline; the input end of the first liquid pump is connected to the second port of the first multi-port via a fourth pipeline; and the input end of the second liquid pump is connected to the third port of the first multi-port via a fifth pipeline.

[0020] In one exemplary embodiment of this disclosure, the first multi-channel and the second liquid pump are located on the same side of the brush head.

[0021] In one exemplary embodiment of this disclosure, a fourth conduit between the first multi-port and the first liquid pump has a third length; a fifth conduit between the first multi-port and the second liquid pump has a fourth length; the fourth length is less than the third length.

[0022] In one exemplary embodiment of this disclosure, the fourth conduit has a first cross-sectional area; the fifth conduit has a second cross-sectional area; and the second cross-sectional area is larger than the first cross-sectional area.

[0023] In one exemplary embodiment of this disclosure, a component of a first quantity value is provided on the fourth pipeline; a component of a second quantity value is provided on the fifth pipeline; the second quantity value is less than the first quantity value.

[0024] In one exemplary embodiment of this disclosure, the second quantity value is zero.

[0025] In one exemplary embodiment of this disclosure, the input end of the first liquid pump is connected to the first multi-port via the component disposed on the first pipeline between the first multi-port and the first liquid pump.

[0026] In one exemplary embodiment of this disclosure, the brush head further includes:

[0027] The components installed on the fourth pipeline include a two-way valve or a second multi-way valve.

[0028] In one exemplary embodiment of this disclosure, the two-way valve or the second multi-way valve is located on the same side of the brush head as the first liquid pump.

[0029] In one exemplary embodiment of this disclosure, the brush head further includes:

[0030] A suction pipe is configured to suck up dirt from a surface to be cleaned; the heater, the first liquid pump, and the second liquid pump are located on the same side of the suction pipe.

[0031] In one exemplary embodiment of this disclosure, the first pipeline is further provided with a first reversing valve and a pressure relief valve. The input end of the first reversing valve is connected to the output end of the first liquid pump, and the output end of the first reversing valve is connected to the first input end of the pressure relief valve. The pressure relief valve is also provided on the second pipeline, and the second input end of the pressure relief valve is connected to the output end of the second liquid pump. The output end of the pressure relief valve is connected to the input end of the heater. The pressure relief end of the pressure relief valve is connected to the outside of the brush head.

[0032] In one exemplary embodiment of this disclosure, the brush head further includes:

[0033] The second reversing valve and the heater are located on opposite sides of the suction pipe. The input end of the second reversing valve is connected to the output end of the heater. The first output end of the second reversing valve is connected to the steam output component. The second output end of the second reversing valve is connected to the water outlet component.

[0034] In one exemplary embodiment of this disclosure, the brush head further includes:

[0035] The third multi-port is connected to different ports of the first reversing valve, the second output terminal of the second reversing valve, and the water outlet component.

[0036] In one exemplary embodiment of this disclosure, the third multi-port is located on the same side of the suction pipe as the first reversing valve and the second reversing valve.

[0037] In one exemplary embodiment of this disclosure, the first reversing valve and the second reversing valve are arranged side by side.

[0038] In one exemplary embodiment of this disclosure, the first directional valve includes a first connecting portion and a first valve body portion, wherein the input end, the first output end, and the second output end of the first directional valve are all located in the first connecting portion; the projection of the first connecting portion in a first direction is located within the projection of the first valve body portion in the first direction.

[0039] The second directional valve includes a second connecting portion and a second valve body portion, wherein the input end, the first output end and the second output end of the second directional valve are both located in the second connecting portion; the projection of the second connecting portion in the first direction is located within the projection of the second valve body portion in the first direction;

[0040] The first connecting portion and the second connecting portion are arranged alternately, and the first direction is the direction in which the first connecting portion points to the first valve body portion.

[0041] In one exemplary embodiment of this disclosure, the brush head further includes:

[0042] The fourth multi-port is connected to different ports of the second liquid pump, the first output of the first reversing valve, and the input of the heater.

[0043] In one exemplary embodiment of this disclosure, the fourth multi-port is located on the same side of the suction pipe as the heater.

[0044] In one exemplary embodiment of this disclosure, the fourth multiplexer is the pressure relief valve.

[0045] In one exemplary embodiment of this disclosure, the brush head further includes:

[0046] Cleaning solution supply tank, used to store cleaning solution;

[0047] The third liquid pump has its input end connected to the cleaning liquid supply chamber and its output end connected to the first multi-port.

[0048] In one exemplary embodiment of this disclosure, the brush head further includes:

[0049] Cleaning solution supply tank, used to store cleaning solution;

[0050] The third liquid pump has its input end connected to the cleaning liquid supply chamber and its output end connected to the second multi-port.

[0051] In one exemplary embodiment of this disclosure, the third liquid pump is located on the same side of the suction pipe as the first reversing valve and the second reversing valve.

[0052] In one exemplary embodiment of this disclosure, the heater includes:

[0053] Heater body;

[0054] The first filter screen is disposed within the heater body and located between the input end and the output end of the heater.

[0055] In one exemplary embodiment of this disclosure, the brush head further includes:

[0056] A second filter is disposed at the output end of the heater, and the mesh size of the second filter is smaller than that of the first filter.

[0057] In one exemplary embodiment of this disclosure, the mesh size of the first filter screen is 1 mm to 3 mm.

[0058] In one exemplary embodiment of this disclosure, the mesh size of the second filter is 0.2 mm to 1 mm.

[0059] In one exemplary embodiment of this disclosure, the filtration area of ​​the second filter is larger than that of the first filter.

[0060] In one exemplary embodiment of this disclosure, the filtration area of ​​the second filter is 500 mm². 2 Up to 2000mm 2 .

[0061] In one exemplary embodiment of this disclosure, a flow detector is provided on the third pipeline.

[0062] In one exemplary embodiment of this disclosure, the cleaning workpiece further includes:

[0063] A cleaning workpiece, comprising a water outlet and a cleaning component, wherein the water outlet is configured to deliver liquid onto or in front of the cleaning component, and the cleaning component is used to clean a surface to be cleaned; the output end of the first liquid pump is also used to deliver liquid to the water outlet.

[0064] In one exemplary embodiment of this disclosure, the brush head further includes:

[0065] A controller for controlling the operation of various components within the brush head, the controller being located away from the cleaning element relative to the heater.

[0066] In one exemplary embodiment of this disclosure, the brush head further includes:

[0067] The housing has a receiving cavity, in which both the controller and the heater are located. The controller is located on the side of the receiving cavity away from the cleaning component, and the heater is located on the side of the receiving cavity closer to the cleaning component.

[0068] In one exemplary embodiment of this disclosure, the cleaning component is a roller brush.

[0069] In one exemplary embodiment of this disclosure, the steam output element has a plurality of spaced-apart steam nozzles.

[0070] Another aspect of this disclosure provides a cleaning device, comprising:

[0071] Handheld part;

[0072] The brush head is any one of the brush heads described above, the handheld part is connected to the brush head, and the brush head includes a cleaning component; the cleaning component includes a cleaning element for cleaning the surface to be cleaned.

[0073] This disclosure also provides a cleaning system, comprising:

[0074] Base station;

[0075] The cleaning equipment is the cleaning equipment described above, and the cleaning equipment is capable of interfacing with the base station.

[0076] The technical solution provided in this disclosure can achieve the following beneficial effects:

[0077] The brush head provided in this disclosure includes a heater, a first liquid pump, and a second liquid pump. A first conduit between the first liquid pump and the heater has a first length, and a second conduit between the second liquid pump and the heater has a second length, which is shorter than the first length. This configuration ensures that the second liquid pump can promptly deliver liquid to the heater when it starts operating, preventing the heater from burning dry. This reduces the probability of heater damage and improves the reliability and service life of the brush head.

[0078] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0079] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0080] Figure 1 shows a schematic diagram of the structure of a cleaning system according to an exemplary embodiment of the present disclosure;

[0081] Figure 2 shows a schematic diagram of the structure of a brush head according to an exemplary embodiment of the present disclosure;

[0082] Figure 3 shows a schematic diagram of the modular structure of a brush head according to an exemplary embodiment of the present disclosure;

[0083] Figure 4 shows a partial structural schematic diagram of a brush head from a first perspective according to an exemplary embodiment of the present disclosure;

[0084] Figure 5 shows a partial structural schematic diagram of a brush head from a second perspective according to an exemplary embodiment of the present disclosure;

[0085] Figure 6 shows a partial structural schematic diagram of a brush head according to another exemplary embodiment of the present disclosure;

[0086] Figure 7 shows a partial structural schematic diagram of a brush head from a first perspective according to yet another exemplary embodiment of the present disclosure;

[0087] Figure 8 shows a partial structural schematic diagram of a brush head from a second perspective according to yet another exemplary embodiment of the present disclosure;

[0088] Figure 9 shows a partial structural schematic diagram of a brush head according to yet another exemplary embodiment of the present disclosure.

[0089] Explanation of reference numerals in the attached drawings: 01, Cleaning equipment; 02, Base station; 03, Handheld part; 04, Brush head; 1, Cleaning workpiece; 11, Water outlet; 12, Steam output part; 121, Steam nozzle; 13, Cleaning part; 2, Suction pipe; 3, Water supply tank; 31, Water supply connector; 4, Heater; 5, Second filter screen; 6, First liquid pump; 7, Second liquid pump; 8, Electrical components; 81, Hydraulic control assembly; 811, Solenoid valve; 812, First directional valve; 8121, First connecting part; 8122, First valve body; 813, Second directional valve; 8131, Second connecting part; 8132, Second valve body; 82, Controller; 9. First multi-port; 10. Second multi-port; 14. Third liquid pump; 15. Third multi-port; 16. Pressure relief valve; 17. Fourth multi-port; 18. Flow detector; 19. Housing; 191. Receiving cavity; 20. Cleaning fluid supply chamber; 201. Cleaning fluid supply connector; X, First direction. Detailed Implementation

[0090] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0091] Although relative terms such as "up" and "down" are used in this specification to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as according to the orientation of the examples shown in the accompanying drawings. It is understood that if the device of the icon is flipped upside down, the component described as "up" will become the component described as "down." When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0092] The terms “a,” “one,” “the,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “including” and “having” are used to indicate an open-ended inclusion meaning and that there may be other elements / components / etc. in addition to the listed elements / components / etc.; the terms “first” and “second” are used only as markers and are not a limitation on the number of objects.

[0093] As shown in Figures 1 to 9, this disclosure first provides a brush head 04. The brush head 04 can be applied to cleaning equipment 01 such as floor scrubbers, robot vacuum cleaners, and vacuum and mop combos. This disclosure does not impose specific limitations on the cleaning equipment 01 that uses the brush head 04.

[0094] The brush head 04 disclosed herein may include: a cleaning component 1. The cleaning component 1 can be used to clean the surface to be cleaned. The cleaning component 1 may include: a cleaning element 13, a water outlet element 11, and a steam output element 12.

[0095] The cleaning component 13 can contact the surface to be cleaned for cleaning the surface. The cleaning component 13 can be a roller brush, but is not limited to this. The cleaning component 13 can also be a brush strip, side brush, etc., and can be selected and set according to the actual situation, all of which are within the protection scope of this disclosure.

[0096] The water outlet 11 can deliver liquid to the cleaning component 13 to moisten it, thereby improving the cleaning ability of the cleaning component 13 and thus enhancing the cleaning effect of the brush head 04. Alternatively, the water outlet 11 can deliver liquid to the front of the cleaning component 13 to moisten the dirt on the surface to be cleaned in front of the cleaning component 13, making it easier for the cleaning component 13 to remove the dirt, thus also achieving the same purpose of improving the cleaning effect of the brush head 04.

[0097] It should be noted that the "front" of the cleaning component 13 mentioned above refers to the front of the cleaning component 13 in the direction of movement of the brush head 04.

[0098] As shown in Figures 3, 4, and 6, the water outlet component 11 can be a water strip, which may have multiple spaced water outlet holes 111 to deliver water to the cleaning component 13 or the surface to be cleaned. This configuration increases the water outlet range of the water outlet component 11, further increasing the wetting range of the cleaning component 13 or the dirt, thereby further improving the cleaning effect of the brush head 04. However, it is not limited to this; the water outlet component 11 may not be a water strip, but may be other independent structural components capable of dispensing water, or it may be an opening at the end of a pipe, etc. This disclosure does not limit this.

[0099] As shown in Figures 3 to 5, the steam output component 12 can deliver water vapor to the cleaning component 13 to moisten it, thereby further improving the cleaning ability of the cleaning component 13 and thus enhancing the cleaning effect of the brush head 04. Alternatively, the steam output component 12 can deliver water vapor to the front of the cleaning component 13 to heat and moisten the dirt on the surface to be cleaned in front of the cleaning component 13, making it easier for the cleaning component 13 to clean the dirt, thus also further enhancing the cleaning effect of the brush head 04. Alternatively, the steam output component 12 can also deliver water vapor to the cleaning component 13 to moisten it, enabling self-cleaning of the cleaning component 13 and improving the ease of use and service life of the brush head 04.

[0100] As shown in Figure 5, the steam output component 12 may include steam nozzles 121, which can deliver steam to the cleaning component 13 or the front of the cleaning component 13. The steam output component 12 may have multiple spaced-apart steam nozzles 121, through which steam can be delivered to the cleaning component 13 or the front of the cleaning component 13. This configuration can increase the range of steam delivery by the steam output component 12, thereby further improving the cleaning effect or self-cleaning effect of the brush head 04. However, it is not limited to this; the steam output component 12 may not include steam nozzles 121, and it may be other independent structural components capable of delivering steam, or the steam output component 12 may be the end opening of a pipeline, etc. This disclosure does not limit this.

[0101] As shown in Figures 3 to 9, the brush head 04 may further include a suction tube 2, which can be configured to suck up dirt from the surface to be cleaned. That is, it can be understood that the suction tube 2 can suck up dirt from the surface to be cleaned or from the surface of the cleaning component 13 by means of high-speed airflow.

[0102] The opening of the suction pipe 2 can be positioned directly opposite the cleaning component 13 to facilitate the suction of dirt from the surface of the cleaning component 13. Furthermore, the opening of the suction pipe 2 can be positioned directly opposite the central area of ​​the cleaning component 13 so that the suction pipe 2 has the same suction capacity for dirt located at both ends of the cleaning component 13, thereby improving the suction effect of the suction pipe 2 on the surface of the cleaning component 13.

[0103] The brush head 04 may also include a water supply tank 3, which can be used to store liquid and to supply liquid to downstream components. The water supply tank 3 may have a water supply connector 31, which can communicate with downstream components for supplying liquid.

[0104] The brush head 04 may also include a heater 4, which can be configured to heat liquid. The heater 4 may be a boiler, but is not limited thereto; the heater 4 may also be other components with heating capabilities.

[0105] The heater 4 may include a heater body and a first filter screen. The first filter screen can be disposed within the heater body and located between the input and output ends of the heater 4 to filter the liquid within the heater 4, preventing impurities from clogging the pipes and cleaning components 1, thereby extending the service life of the brush head 04. The mesh size of the first filter screen can be from 1mm to 3mm, for example: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, etc. This configuration ensures good filtration while improving the flow capacity of the first filter screen, guaranteeing that water within the heater 4 can pass through the first filter screen normally, and reducing the probability of clogging.

[0106] As shown in Figures 3 and 9, the brush head 04 may further include a second filter screen 5, which can be disposed at the output end of the heater 4. The mesh size of the second filter screen 5 can be smaller than that of the first filter screen. This arrangement allows the second filter screen 5 to further filter the liquid or water vapor output from the heater 4, further removing internal impurities, further reducing the probability of impurities clogging downstream pipes and the cleaning workpiece 1, and further improving the service life of the brush head 04.

[0107] The pore size of the second filter screen 5 can be from 0.2mm to 1mm, for example: 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1mm, etc. This setting ensures that the second filter screen 5 has a good filtration effect and improves its flow capacity, ensuring that the water in the heater 4 can pass through the second filter screen 5 normally.

[0108] The filtration area of ​​the second filter screen 5 can be larger than that of the first filter screen to improve the filtration effect of the second filter screen 5 and ensure that the liquid or water vapor delivered to the downstream pipeline and cleaning workpiece 1 is free of impurities. Furthermore, by increasing the filtration area of ​​the second filter screen 5, the probability of clogging can be reduced.

[0109] The filtration area of ​​the second filter 5 can be 500mm². 2 Up to 2000mm 2 For example: 500mm 2 600mm 2 700mm 2 800mm 2 900mm 2 1000mm 2 1100mm 2 1200mm 2 1300mm 2 1400mm 2 1500mm 2 1600mm 2 1700mm 2 1800mm 2 1900mm 2 2000mm 2 This configuration ensures that the second filter 5 has a sufficient filtration area and avoids the problem of the second filter 5 occupying too much internal space in the brush head 04 due to its excessive filtration area, thus facilitating the miniaturization of the brush head 04.

[0110] As shown in Figures 3, 4, and 7 to 9, the brush head 04 may further include a first liquid pump 6. The input end of the first liquid pump 6 can be connected to the water supply tank 3, that is, the input end of the first liquid pump 6 can be connected to the water supply connector 31 to draw liquid stored in the water supply tank 3. The output end of the first liquid pump 6 can be connected to the input end of the heater 4 via a first pipeline to deliver liquid to the heater 4. Furthermore, the output end of the first liquid pump 6 can also be used to directly deliver liquid to the cleaning workpiece 1. For example, the output end of the first liquid pump 6 can also be connected to the water outlet 11 to directly deliver liquid to the water outlet 11, and then through the water outlet 11 to the cleaning workpiece 13 or to the front of the cleaning workpiece 13.

[0111] The first liquid pump 6 can be located on the same side of the brush head 04 as the heater 4, for example, the first liquid pump 6 can be located on the same side of the suction pipe 2. This arrangement reduces the distance between the first liquid pump 6 and the heater 4, and reduces the length of the first pipeline between the output end of the first liquid pump 6 and the heater 4. It should be noted that in Figure 3, the first pipeline is represented by the arrows connecting the first liquid pump 6 and the heater 4. This arrangement ensures that when the heater 4 is working, the liquid output from the output end of the first liquid pump 6 can reach the heater 4 as quickly as possible, preventing the heater 4 from burning dry, thereby reducing the probability of damage to the heater 4 and improving the reliability and service life of the brush head 04.

[0112] The brush head 04 may also include a second liquid pump 7. The input end of the second liquid pump 7 can be connected to the water supply tank 3, that is, the input end of the second liquid pump 7 can be connected to the water supply connector 31 to draw liquid stored in the water supply tank 3. The output end of the second liquid pump 7 can be connected to the input end of the heater 4 via a second pipeline to supply liquid to the heater 4.

[0113] The second liquid pump 7 can be located on the same side of the brush head 04 as the heater 4, for example, the second liquid pump 7 can be located on the same side of the suction pipe 2. This arrangement reduces the distance between the second liquid pump 7 and the heater 4, and reduces the length of the second pipeline between the output end of the second liquid pump 7 and the heater 4. It should be noted that in Figure 3, the second pipeline is represented by the arrows connecting the second liquid pump 7 and the heater 4. This arrangement ensures that when the heater 4 is operating, the liquid output from the output end of the second liquid pump 7 can reach the heater 4 as quickly as possible, preventing the heater 4 from burning dry, thereby reducing the probability of damage to the heater 4 and improving the reliability and service life of the brush head 04.

[0114] The flow rate of the second liquid pump 7 can be less than that of the first liquid pump 6. The flow rate range of the first liquid pump 6 can be from 10 ml / min to 500 ml / min, for example: 10 ml / min, 50 ml / min, 100 ml / min, 150 ml / min, 200 ml / min, 250 ml / min, 300 ml / min, 350 ml / min, 400 ml / min, 450 ml / min, 500 ml / min, etc. This setting can ensure the delivery volume of the first liquid pump 6.

[0115] The flow rate range of the second liquid pump 7 can be from 0.5 ml / min to 9 ml / min, for example: 0.5 ml / min, 1 ml / min, 2 ml / min, 3 ml / min, 4 ml / min, 5 ml / min, 6 ml / min, 7 ml / min, 8 ml / min, 9 ml / min, etc. This setting ensures the amount of liquid delivered when the second liquid pump 7 is turned on. Furthermore, it avoids the problem of the heater 4 burning dry due to insufficient liquid delivery, thus preventing damage to the heater 4. Simultaneously, it also avoids the problem of insufficient water vapor formation due to insufficient liquid delivery, ensuring the cleaning effect of the brush head 04.

[0116] The first pipeline between the first liquid pump 6 and the heater 4 can have a first length, and the second pipeline between the second liquid pump 7 and the heater 4 can have a second length, which can be less than the first length. This configuration further ensures that when the heater 4 starts working, the second liquid pump 7 can promptly deliver liquid to the heater 4, further preventing the heater 4 from burning dry. This reduces the probability of damage to the heater 4 and improves the reliability and service life of the brush head 04.

[0117] Heater 4, first liquid pump 6, and second liquid pump 7 can all be located on the same side of brush head 04. For example, heater 4, first liquid pump 6, and second liquid pump 7 can all be located on the same side of suction pipe 2. Second liquid pump 7 can also be located between heater 4 and first liquid pump 6. This arrangement allows the distance between second liquid pump 7 and heater 4 to be closer, thereby further reducing the length of the second pipeline between second liquid pump 7 and heater 4. This further ensures that when heater 4 starts working, second liquid pump 7 can promptly deliver liquid into heater 4, further preventing heater 4 from burning dry. This reduces the probability of heater 4 being damaged and improves the reliability and service life of brush head 04.

[0118] The brush head 04 may also include an electrical component 8. The electrical component 8 and the heater 4 can be located on opposite sides of the brush head 04, for example, on opposite sides of the suction pipe 2. This arrangement allows for a greater distance between the electrical component 8 and the heater 4, reducing the temperature near the electrical component 8 and minimizing the impact of the high-temperature heat generated by the heater 4 on the electrical component 8. This ensures the normal operation of the electrical component 8 and reduces the probability of damage, thereby improving the reliability and lifespan of the brush head 04. Furthermore, this arrangement utilizes the suction pipe 2 as a spacer between the electrical component 8 and the heater 4, blocking the heat generated by the heater 4, further reducing the temperature near the electrical component 8 and minimizing the impact of the high-temperature heat generated by the heater 4 on the electrical component 8, further improving the reliability and lifespan of the brush head 04.

[0119] Meanwhile, during the operation of the brush head 04, there is high-speed airflow inside the suction pipe 2. This high-speed airflow can carry away some of the high-temperature heat generated by the heater 4, which can further reduce the temperature near the electrical components 8, further reduce the impact of the high-temperature heat generated by the heater 4 on the electrical components 8, and further improve the reliability and service life of the brush head 04.

[0120] Electrical component 8 may include a hydraulic control assembly 81, which can be configured to control the liquid delivery within the brush head 04. The hydraulic control assembly 81 may include a solenoid valve 811. By setting the solenoid valve 811, the liquid delivery within the brush head 04 can be automated, thus freeing up operator labor. Furthermore, this configuration allows for more precise control of the liquid delivery within the brush head 04 via the solenoid valve 811, improving the performance of the brush head 04.

[0121] The solenoid valve 811 may include a first directional valve 812. The first directional valve 812 and the heater 4 can be located on opposite sides of the suction pipe 2 to prevent the high-temperature heat generated by the heater 4 from affecting the normal operation and service life of the first directional valve 812. The first input end of the first directional valve 812 can be connected to the water supply tank 3, the first output end of the first directional valve 812 can be connected to the input end of the heater 4, and the second output end of the first directional valve 812 can be connected to the cleaning workpiece 1. The first directional valve 812 can change the direction of liquid delivery, allowing liquid to be delivered to the heater 4 or to the cleaning workpiece 1. When the brush head 04 includes a first liquid pump 6, the input end of the first directional valve 812 can be connected to the output end of the first liquid pump 6. When the cleaning workpiece 1 includes a water outlet 11, the second output end of the first directional valve 812 can be connected to the water outlet 11.

[0122] The solenoid valve 811 may further include a second directional valve 813. The second directional valve 813 and the heater 4 may be located on opposite sides of the suction pipe 2 to avoid the high-temperature heat generated by the heater 4 affecting the normal operation and service life of the second directional valve 813. The input end of the second directional valve 813 may be connected to the output end of the heater 4, the first output end of the second directional valve 813 may be connected to the steam output component 12, and the second output end of the second directional valve 813 may be connected to the water outlet component 11. The second directional valve 813 can change the direction of delivery, allowing the liquid or steam output from the heater 4 to be delivered to the water outlet component 11 or to the steam output component 12.

[0123] The first reversing valve 812 and the second reversing valve 813 can be arranged side by side. This arrangement facilitates the arrangement of pipelines inside the brush head 04 and saves internal space in the brush head 04.

[0124] As shown in Figure 9, the first directional control valve 812 may include a first connecting portion 8121 and a first valve body portion 8122. The input end, the first output end, and the second output end of the first directional control valve 812 may all be located within the first connecting portion 8121. The projection of the first connecting portion 8121 onto a first direction X may lie within the projection of the first valve body portion 8122 onto the first direction X, where the first direction X can be the direction from the first connecting portion 8121 to the first valve body portion 8122. That is, it can be understood that the first connecting portion 8121 can be the small end of the first directional control valve 812, and the first valve body portion 8122 can be the large end of the first directional control valve 812.

[0125] The second directional control valve 813 may include a second connecting portion 8131 and a second valve body portion 8132. The input end, the first output end, and the second output end of the second directional control valve 813 may all be located within the second connecting portion 8131. The projection of the second connecting portion 8131 in the first direction X may be located within the projection of the second valve body portion 8132 in the first direction X. That is, it can be understood that the second connecting portion 8131 can be the small end of the second directional control valve 813, and the second valve body portion 8132 can be the large end of the second directional control valve 813.

[0126] The first connecting portion 8121 and the second connecting portion 8131 can be staggered. It is understood that the orientations of the first connecting portion 8121 and the second connecting portion 8131 can be opposite; that is, the direction in which the second connecting portion 8131 points towards the second valve body portion 8132 can be opposite to the first direction X. This arrangement further saves internal space in the brush head 04 when the first reversing valve 812 and the second reversing valve 813 are arranged side-by-side. Furthermore, this arrangement avoids positional interference between the pipes connected to the first connecting portion 8121 and the pipes connected to the second connecting portion 8131, further reducing the difficulty of arranging pipes inside the brush head 04.

[0127] As shown in Figures 3, 8, and 9, the brush head 04 may further include a first multi-port 9. The first multi-port 9 may have multiple ports. The water supply tank 3 may be connected to the first port of the first multi-port 9 via a third pipe, the input end of the first liquid pump 6 may be connected to the second port of the first multi-port 9 via a fourth pipe, and the input end of the second liquid pump 7 may be connected to the third port of the first multi-port 9 via a fifth pipe, so as to divert liquid from the water supply tank 3 to the input ends of the first liquid pump 6 and / or the second liquid pump 7 through the first multi-port 9. Further, the first multi-port 9 may be connected to the water supply tank 3 via a water supply connector 31. In this embodiment, the first multi-port 9 may be a three-way connector, that is, the first multi-port 9 may have three ports, but it is not limited to this; the first multi-port 9 may also have more than three ports.

[0128] It should be noted that in Figure 3, the third pipeline is represented by the arrows connecting the water supply tank 3 and the first multi-port 9, the fourth pipeline is represented by the arrows connecting the first liquid pump 6 and the first multi-port 9, and the fifth pipeline is represented by the arrows connecting the second liquid pump 7 and the first multi-port 9.

[0129] There can be a first flow resistance between the first multi-port 9 and the first liquid pump 6, and there can be a second flow resistance between the first multi-port 9 and the second liquid pump 7. The first flow resistance can be greater than the second flow resistance, so as to avoid excessive liquid output from the water supply tank 3 being delivered to the first liquid pump 6, and to ensure that the second liquid pump 7 can also obtain sufficient liquid.

[0130] In some embodiments, the fourth conduit between the first multi-port 9 and the first liquid pump 6 may have a third length, and the fifth conduit between the second multi-port 10 and the second liquid pump 7 may have a fourth length, which may be less than the third length, thereby increasing the first flow resistance between the first multi-port 9 and the first liquid pump 6, so that the first flow resistance is greater than the second flow resistance.

[0131] In some embodiments, the fourth pipeline between the first multi-port 9 and the first liquid pump 6 may have a first cross-sectional area, and the fifth pipeline between the first multi-port 9 and the second liquid pump 7 may have a second cross-sectional area. The second cross-sectional area may be larger than the first cross-sectional area, thereby reducing the second flow resistance between the first multi-port 9 and the second liquid pump 7, so that the first flow resistance is greater than the second flow resistance.

[0132] In some embodiments, a first quantity of components may be provided on the fourth pipeline between the first multi-port 9 and the first liquid pump 6. A second quantity of components may be provided on the fifth pipeline between the second multi-port 10 and the second liquid pump 7. The second quantity may be less than the first quantity, thereby allowing the liquid output from the water supply tank 3 to pass through more components on its path from the first multi-port 9 to the first liquid pump 6, thereby increasing its first flow resistance and making the first flow resistance greater than the second flow resistance.

[0133] It should be noted that the components mentioned here can be: multi-port valves, valve bodies, liquid pumps, or other components with water flow capabilities.

[0134] The second quantity value can be 0 to ensure a small flow resistance between the first multi-port 9 and the second liquid pump 7.

[0135] Furthermore, the input end of the first liquid pump 6 is connected to the first multi-port 9 via a component on the fourth pipeline between the first multi-port 9 and the first liquid pump 6. This arrangement allows for greater flow resistance between the first multi-port 9 and the first liquid pump 6.

[0136] Furthermore, the components installed on the fourth pipeline may include a two-way valve or a second multi-way valve 10. The two-way valve may have two ports, and the second multi-way valve 10 may have multiple ports. The input terminal of the first liquid pump 6 may be connected to the two-way valve or the second multi-way valve 10.

[0137] The two-way or second multi-way 10 and the first liquid pump 6 can be located on the same side of the brush head 04. For example, the two-way or second multi-way 10 and the first liquid pump 6 can be located on the same side of the suction pipe 2, which can reduce the distance between the two-way or second multi-way 10 and the first liquid pump 6, making it easier for the two-way or second multi-way 10 to connect with the first liquid pump 6.

[0138] In some embodiments, as shown in Figures 2 to 4 and Figures 7 to 9, the brush head 04 may further include a cleaning fluid supply chamber 20 and a third liquid pump 14. The cleaning fluid supply chamber 20 can be used to store cleaning fluid. The input end of the third liquid pump 14 can be connected to the cleaning fluid supply chamber 20, and the output end of the third liquid pump 14 can be connected to the second multi-port 10. The third liquid pump 14 can extract the cleaning fluid from the cleaning fluid supply chamber 20 and deliver it to the second multi-port 10. In this embodiment, the second multi-port 10 can be a three-way valve, that is, the second multi-port 10 can have three ports, but is not limited to this; the second multi-port 10 can also have more than four ports. In this embodiment, by placing the second multi-port 10 between the first multi-port 9 and the first liquid pump 6, the liquid output from the water supply tank 3 can first pass through the first multi-port 9 and then through the second multi-port 10. This arrangement can prevent the cleaning fluid from entering the heater 4 through the second liquid pump 7, causing the brush head 04 to malfunction, thereby improving the reliability of the brush head 04 and enhancing the user experience.

[0139] In other embodiments, the brush head 04 may not have a second multi-port 10; instead, it may only have a first multi-port 9. The output of the third liquid pump 14 can be connected to the first multi-port 9, thereby reducing the manufacturing cost of the brush head 04 and saving internal space. In this embodiment, the first multi-port 9 can be a four-way multi-port, that is, the first multi-port 9 can have four ports, but it is not limited to this; the first multi-port 9 can also have more than four ports.

[0140] The cleaning fluid supply tank 20 may have a cleaning fluid supply connector 201, through which the input end of the third liquid pump 14 can be connected to the cleaning fluid supply tank 20. The cleaning fluid supply tank 20 may be located inside the water supply tank 3 to improve the integration of the brush head 04. The cleaning fluid inlet of the cleaning fluid supply tank 20 and the liquid inlet of the water supply tank 3 may be different inlets to facilitate the separate addition of cleaning fluid and liquid from the water supply tank 3.

[0141] The third liquid pump 14 and the solenoid valve 811 can be located on the same side of the brush head 04. For example, the third liquid pump 14 and the solenoid valve 811 can be located on the same side of the suction pipe 2. When the solenoid valve 811 includes a first reversing valve 812 and a second reversing valve 813, the third liquid pump 14, the first reversing valve 812, and the second reversing valve 813 are all located on the same side of the suction pipe 2. This arrangement allows the solenoid valve 811 and the third liquid pump 14 to be closer together. When the third liquid pump 14 delivers cleaning fluid, the cleaning fluid in the pipeline can carry away the heat around the solenoid valve 811, thereby further reducing the heat around the solenoid valve 811 and further reducing the probability of the solenoid valve 811 malfunctioning or being damaged.

[0142] As shown in Figures 3, 7, and 9, the brush head 04 may further include a third multi-port 15. The second output end of the first reversing valve 812, the second output end of the second reversing valve 813, and the water outlet 11 can be connected to different ports of the third multi-port 15, respectively. By setting the third multi-port 15, the pipeline between the second output end of the first reversing valve 812 and the water outlet 11, and the pipeline between the second output end of the second reversing valve 813 and the water outlet 11 can be integrated, dividing the two longer pipelines into three shorter pipelines: one between the second output end of the first reversing valve 812 and the third multi-port 15, one between the second output end of the second reversing valve 813 and the third multi-port 15, and one between the water outlet 11 and the third multi-port 15. This reduces the difficulty of pipeline layout and saves internal space in the brush head 04. In this embodiment, the third multi-port 15 can be a three-way valve, that is, the third multi-port 15 can have three ports, but it is not limited to this; the third multi-port 15 can also have multiple ports.

[0143] The third multi-port valve 15 and the solenoid valve 811 can be located on the same side of the suction pipe 2. When the solenoid valve 811 includes a first reversing valve 812 and a second reversing valve 813, the third multi-port valve 15, the first reversing valve 812, and the second reversing valve 813 can all be located on the same side of the suction pipe 2. This arrangement reduces the distance between the third multi-port valve 15 and the first and second reversing valves 812 and 813, facilitating communication between the third multi-port valve 15 and the first and second reversing valves 812 and 813.

[0144] Furthermore, as shown in Figures 3, 8, and 9, the brush head 04 may also include a pressure relief valve 16. The pressure relief valve 16 can be installed on the second pipeline. The first input end of the pressure relief valve 16 can be connected to the first output end of the first reversing valve 812, the second input end of the pressure relief valve 16 can be connected to the output end of the second liquid pump 7, the output end of the pressure relief valve 16 can be connected to the input end of the heater 4, and the pressure relief end of the pressure relief valve 16 can be connected to the outside of the brush head 04 to regulate the pressure in the pipeline and prevent damage to the components located on the pipeline due to excessive water pressure in the pipeline.

[0145] The pressure relief valve 16 may include a spring valve. When the internal pressure of the pipeline is too high, the spring valve will automatically open, and when the internal pressure of the pipeline is normal, the valve will automatically close. This allows for automatic regulation of the internal pressure of the pipeline.

[0146] Furthermore, the brush head 04 may also include a fourth multi-port 17. The fourth multi-port 17 may have multiple ports, and the output end of the second liquid pump 7, the first output end of the first reversing valve 812, and the input end of the heater 4 can be connected to different ports of the fourth multi-port 17 respectively. By setting the fourth multi-port 17, the second pipeline between the output end of the second liquid pump 7 and the heater 4 and the pipeline between the first output end of the first reversing valve 812 and the heater 4 can be integrated, dividing the two longer pipelines into three shorter pipelines: one between the output end of the second liquid pump 7 and the fourth multi-port 17, one between the first output end of the first reversing valve 812 and the fourth multi-port 17, and one between the heater 4 and the fourth multi-port 17, thereby reducing the difficulty of pipeline arrangement and saving internal space of the brush head 04. In this embodiment, the fourth multi-port 17 can be a three-way valve, that is, the fourth multi-port 17 can have three ports, but it is not limited to this; the third multi-port 15 may also have multiple ports.

[0147] The fourth multi-port 17 and the heater 4 can be located on the same side of the suction pipe 2. This arrangement can reduce the length of the connecting pipe between the fourth multi-port 17 and the heater 4, allowing the liquid to reach the heater 4 as quickly as possible, and further avoiding the risk of the heater 4 burning dry.

[0148] The fourth multi-port valve 17 can be reused as a pressure relief valve 16. That is, the valve body can integrate the functions of the fourth multi-port valve 17 and the pressure relief valve 16. This configuration can save on manufacturing molds and reduce the manufacturing cost of the brush head 04. Furthermore, it can reduce the number of components inside the brush head 04, saving internal space.

[0149] As shown in Figures 3, 8, and 9, the brush head 04 may further include a flow detector 18. The flow detector 18 can be a flow sensor, etc. The flow detector 18 can be located between the water supply tank 3 and the first multi-port 9 to detect the amount of liquid output from the water supply tank 3. Furthermore, by detecting whether there is water in the pipe between the water supply tank 3 and the first multi-port 9, it can be determined whether the heater 4 should be turned on, to prevent the heater 4 from running dry and reducing the probability of damage to the heater 4.

[0150] Furthermore, a preset time can be set so that the heater 4 can only be turned on when the flow detector 18 detects water in the pipeline between the water supply tank 3 and the first multi-port 9 within the preset time. The preset time can be in seconds, but is not limited to this.

[0151] As shown in Figures 3 to 9, the electrical component 8 may further include a controller 82. The controller 82 can be used to control the operation of various components within the brush head 04, such as controlling the opening and closing of the solenoid valve 811, the first liquid pump 6, the second liquid pump 7, and the third liquid pump 14. The controller 82 can be a PCB circuit board, but is not limited to this. The controller 82 can be located away from the cleaning component 13 relative to the heater 4, thereby further increasing the distance between the controller 82 and the heater 4, further reducing the temperature near the controller 82, and further reducing the impact of the high-temperature heat generated by the heater 4 on the controller 82. This ensures the normal operation of the controller 82, reduces the probability of damage to the controller 82, and thus further improves the reliability and service life of the brush head 04.

[0152] As shown in Figures 3 and 4, the brush head 04 may further include a housing 19. The housing 19 may have a receiving cavity 191, within which the controller 82 and the heater 4 can both be located. The controller 82 may be located on the side of the receiving cavity 191 furthest from the cleaning component 13, and the heater 4 may be located on the side of the receiving cavity 191 closest to the cleaning component 13. This arrangement increases the distance between the controller 82 and the heater 4, further reducing the impact of the high-temperature heat generated by the heater 4 on the controller 82. This further ensures the normal operation of the controller 82, reduces the probability of damage to the controller 82, and improves the reliability and service life of the brush head 04.

[0153] Furthermore, the remaining components and tubing within the brush head 04 can also be located in the receiving cavity 191, thereby improving the integration of the brush head 04 and protecting the components within the brush head 04 using the housing 19, reducing the probability of damage to the components within the brush head 04 due to external forces, thus improving the reliability and service life of the brush head 04.

[0154] As shown in Figures 3 to 9, brush head 04 can have multiple cleaning modes. For example, brush head 04 can have cold water cleaning mode, steam cleaning mode, hot water cleaning mode, powerful cleaning mode, descaling cleaning mode, and self-cleaning mode.

[0155] In cold water cleaning mode, the first liquid pump 6 can be turned on, the second liquid pump 7 and the heater 4 can be turned off, and the first reversing valve 812 connects the output end of the first liquid pump 6 to the water outlet 11, so that the liquid in the water supply tank 3 is delivered to the water outlet 11 through the first liquid pump 6.

[0156] In steam cleaning mode, the first liquid pump 6, the second liquid pump 7, and the heater 4 can all be turned on. The first reversing valve 812 connects the output of the first liquid pump 6 to the water outlet 11, and the second reversing valve 813 connects the output of the heater 4 to the steam output 12. This allows a portion of the liquid in the water supply tank 3 to be directly delivered to the water outlet 11 via the first liquid pump 6. The remaining liquid can be delivered to the heater 4 via the second liquid pump 7, where it is heated to form steam, which is then delivered to the steam output 12.

[0157] In hot water cleaning mode, the first liquid pump 6 and heater 4 can be turned on, the second liquid pump 7 can be turned off, the first reversing valve 812 is connected to the input end of heater 4, and the second reversing valve 813 is connected to the water outlet 11, so as to deliver the water pumped by the first liquid pump 6 to the heater 4 for heating, and deliver the heated water to the water outlet 11 through the second reversing valve 813.

[0158] In the powerful cleaning mode, the first liquid pump 6 and the heater 4 can be turned on, the second liquid pump 7 can be turned off, the first reversing valve 812 is connected to the input end of the heater 4, and the second reversing valve 813 is connected to the steam output component 12, so as to deliver the water drawn by the first liquid pump 6 to the heater 4 for heating, and deliver the heated water to the steam output component 12 through the second reversing valve 813, and deliver it to the front of the cleaning component 13 through the steam output component 12.

[0159] In descaling and cleaning mode, descaling agent can be added to the water supply tank 3, and the first liquid pump 6 can be turned on while the second liquid pump 7 and heater 4 are turned off. The first reversing valve 812 connects to the input end of heater 4, and the second reversing valve 813 connects to the water outlet 11, allowing the descaling agent to enter heater 4 for descaling. Simultaneously, the descaling agent after descaling can be delivered to the water outlet 11 via the second reversing valve 813 and discharged outside the cleaning equipment 01 through the water outlet 11, thus preventing the descaling agent from entering the steam output 12 and clogging it.

[0160] In self-cleaning mode, the second liquid pump 7 and heater 4 can be turned on, the first liquid pump 6 can be turned off, and the second reversing valve 813 is connected to the water outlet 11. The second liquid pump 7 draws water from the water supply tank 3 and heats it through the heater 4 to form water vapor. The water vapor can be delivered to the water outlet 11 through the second reversing valve 813 and then delivered to the cleaning part 13 through the water outlet 11 to moisten the cleaning part 13 and perform self-cleaning of the cleaning part 13, thereby improving the ease of use and service life of the brush head 04.

[0161] In addition, during cold water cleaning mode, steam cleaning mode, hot water cleaning mode, powerful cleaning mode, and descaling cleaning mode, the third liquid pump 14 can be turned on to deliver the cleaning liquid stored in the cleaning liquid supply chamber 20 to the first liquid pump 6, thereby improving the cleaning effect of the brush head 04.

[0162] This disclosure also provides a cleaning device 01. The cleaning device 01 can be a floor scrubber, a robot vacuum cleaner, a vacuum and mop combo, etc., and this disclosure does not impose any specific limitations on it.

[0163] As shown in Figures 1 to 9, the cleaning device 01 may include a handheld part 03 and a brush head 04. The operator can move and / or operate the cleaning device 01 by holding the handheld part 03. The brush head 04 may be the brush head 04 described above, and the handheld part 03 may be connected to the brush head 04.

[0164] It should be noted that the specific structure and beneficial effects of the brush head 04 have been described in detail in the above embodiments. Therefore, in this embodiment, the specific structure and beneficial effects of the brush head 04 will not be described again. Please refer to the specific description in the above embodiments, which are all within the protection scope of this disclosure.

[0165] The cleaning device 01 provided in this disclosure includes the brush head 04 described above. The brush head 04 may include a heater 4, a first liquid pump 6, and a second liquid pump 7. The first conduit between the first liquid pump 6 and the heater 4 has a first length, and the second conduit between the second liquid pump 7 and the heater 4 has a second length, which is shorter than the first length. This arrangement ensures that when the heater 4 starts operating, the second liquid pump 7 can promptly deliver liquid to the heater 4, preventing the heater 4 from burning dry. This reduces the probability of damage to the heater 4 and improves the reliability and service life of the cleaning device 01.

[0166] This disclosure also provides a cleaning system. As shown in Figures 1 to 9, the cleaning system includes a base station 02 and a cleaning device 01. The cleaning device 01 can be the cleaning device described above, and the cleaning device 01 is capable of docking with the base station 02. The base station 02 can charge, replenish water, and clean the cleaning device 01, or suck out dirt stored in the cleaning device 01.

[0167] It should be noted that the specific structure and beneficial effects of the cleaning device 01 have been described in detail in the above embodiments. Therefore, in this embodiment, the specific structure and beneficial effects of the cleaning device 01 will not be described again. Please refer to the specific description in the above embodiments, which are all within the protection scope of this disclosure.

[0168] The cleaning system provided in this disclosure includes the cleaning device 01 described above. The cleaning device 01 may include a heater 4, a first liquid pump 6, and a second liquid pump 7. The first pipeline between the first liquid pump 6 and the heater 4 has a first length, and the second pipeline between the second liquid pump 7 and the heater 4 has a second length, which is shorter than the first length. This arrangement ensures that when the heater 4 starts operating, the second liquid pump 7 can promptly deliver liquid to the heater 4, preventing the heater 4 from burning dry. This reduces the probability of damage to the heater 4 and improves the reliability and service life of the cleaning system.

[0169] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

Claims

1. A brush head, comprising: A heater configured to heat a liquid; A first liquid pump, the output end of which is connected to the input end of the heater via a first pipeline, is used to supply liquid to the heater; The second liquid pump, the output end of which is connected to the input end of the heater via a second pipeline, is used to supply liquid to the heater; The first pipeline between the first liquid pump and the heater has a first length, and the second pipeline between the second liquid pump and the heater has a second length, the second length being less than the first length.

2. The brush head of claim 1, wherein, The flow rate at the output of the second liquid pump is less than the flow rate at the output of the first liquid pump.

3. The brush head according to claim 2, wherein, The flow rate of the first liquid pump is in the range of 10 ml / min to 500 ml / min, and / or the flow rate of the second liquid pump is in the range of 0.5 ml / min to 9 ml / min.

4. The brush head of claim 1, wherein, The second liquid pump and the heater are located on the same side of the brush head.

5. The brush head of claim 4, wherein, The first liquid pump and the heater are located on the same side of the brush head.

6. The brush head of claim 5, wherein, The second liquid pump is located between the first liquid pump and the heater.

7. The brush head according to any one of claims 1 to 6, further comprising: Water supply tank; The first multi-port is connected to the first port of the first multi-port via a third pipeline; The input end of the first liquid pump is connected to the second port of the first multi-port via a fourth pipeline; the input end of the second liquid pump is connected to the third port of the first multi-port via a fifth pipeline.

8. The brush head of claim 7, wherein, The first multi-channel and the second liquid pump are located on the same side of the brush head.

9. The brush head of claim 7 or 8, wherein, The fourth conduit between the first multi-port and the first liquid pump has a third length; the fifth conduit between the first multi-port and the second liquid pump has a fourth length; the fourth length is less than the third length.

10. The brush head according to any one of claims 7 to 9, wherein, The fourth pipeline has a first cross-sectional area; the fifth pipeline has a second cross-sectional area; the second cross-sectional area is larger than the first cross-sectional area.

11. The brush head according to any one of claims 7 to 10, wherein, The fourth pipeline is provided with a component of a first quantity value; the fifth pipeline is provided with a component of a second quantity value; the second quantity value is less than the first quantity value.

12. The brush head of claim 11, wherein, The second quantity value is zero.

13. The brush head of claim 11, wherein, The components installed on the fourth pipeline include a two-way valve or a second multi-way valve.

14. The brush head of claim 13, wherein, The two-way valve or the second multi-way valve is located on the same side of the brush head as the first liquid pump.

15. The brush head according to any one of claims 7 to 14, wherein, A flow detector is installed on the third pipeline.

16. The brush head according to any one of claims 1 to 15, wherein, The first pipeline is also equipped with a first reversing valve and a pressure relief valve. The input end of the first reversing valve is connected to the output end of the first liquid pump, and the output end of the first reversing valve is connected to the first input end of the pressure relief valve. The pressure relief valve is also installed on the second pipeline. The second input end of the pressure relief valve is connected to the output end of the second liquid pump. The output end of the pressure relief valve is connected to the input end of the heater. The pressure relief end of the pressure relief valve is connected to the outside of the brush head.

17. The brush head according to any one of claims 1 to 15, wherein, The brush head also includes: A cleaning workpiece, comprising a water outlet and a cleaning component, wherein the water outlet is configured to deliver liquid onto or in front of the cleaning component, and the cleaning component is used to clean a surface to be cleaned; the output end of the first liquid pump is also used to deliver liquid to the water outlet.

18. A cleaning device, comprising: Handheld part; A brush head, wherein the brush head is as described in any one of claims 1 to 17, the handheld portion is connected to the brush head, and the brush head includes a cleaning component; the cleaning component includes a cleaning element for cleaning a surface to be cleaned.

19. A cleaning system comprising: Base station; The cleaning device is the cleaning device as described in claim 18, and the cleaning device is capable of interfacing with the base station.

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