Liquid path system, car washer and cleaning device

Abstract

The invention provides a liquid path system, a car washer and a cleaning device.The liquid path system comprises a liquid storage device, a pipeline module and a power device.The liquid storage device at least comprises a first liquid storage box used for supplying first liquid, a second liquid storage box used for supplying second liquid and a third liquid storage box used for supplying third liquid; the pipeline module at least forms a first flow channel, a second flow channel and a third flow channel, the input end of the first flow channel is communicated with the first liquid storage tank and the third liquid storage tank, the input end of the second flow channel is communicated with the second liquid storage tank and the third liquid storage tank, and the input end of the third flow channel is communicated with the third liquid storage tank. Wherein the power device is arranged on the pipeline module to provide power for flowing of substances, so that the first liquid and the third liquid are output after being mixed in the first flow channel, the second liquid and the third liquid are output after being mixed in the second flow channel, and the third liquid is independently output through the third flow channel. According to the liquid path system, the requirement for mixing various fluids or independently conveying the fluids can be met.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment, and in particular to a liquid system, a car wash machine, and a cleaning device. Background Technology

[0002] Currently available self-service car wash systems are services where car owners operate high-pressure water guns, foam spray guns, and other equipment to clean their vehicles. They offer high cost-effectiveness and a self-service operation process. However, different washing and care steps require numerous and complex pipelines to deliver the corresponding liquids, increasing the number of pipelines and the overall weight and space required. This makes them unsuitable for compact, portable, and mobile car wash machines. Summary of the Invention

[0003] The main objective of this application is to provide a liquid system, a car wash machine, and a cleaning device, which aims to solve the problems of existing self-service car wash systems having numerous pipelines and complex structures, resulting in bulky equipment and large space occupation.

[0004] In a first aspect, embodiments of this application provide a liquid circuit system, including: A liquid storage device, the liquid storage device comprising at least a first liquid storage tank for supplying a first liquid, a second liquid storage tank for supplying a second liquid, and a third liquid storage tank for supplying a third liquid; The pipeline module has at least a first flow channel, a second flow channel and a third flow channel. The first input end of the first flow channel is connected to the first liquid storage tank, the second input end of the first flow channel is connected to the third liquid storage tank, the first input end of the second flow channel is connected to the second liquid storage tank, the second input end of the second flow channel is connected to the third liquid storage tank, and the input end of the third flow channel is connected to the third liquid storage tank. A power unit, disposed in the pipeline module, is used to provide power for the flow of matter in the pipeline module, so that the first liquid and the third liquid are mixed in the first flow channel to form a first target fluid and output from the output end of the first flow channel, and the second liquid and the third liquid are mixed in the second flow channel to form a second target fluid and output from the output end of the second flow channel, and the third liquid is also output from the output end of the third flow channel through the third flow channel.

[0005] Optionally, the first flow channel further has a third input end, which is used to introduce a first target gas so that the first target fluid and the first target gas are mixed in the first flow channel.

[0006] Optionally, the second flow channel further has a third input end, and the third input end of the second flow channel is used to introduce a second target gas so that the second target fluid and the second target gas are mixed in the second flow channel.

[0007] Optionally, the second liquid is foam concentrate, the third liquid is water, and the second target fluid includes the foam concentrate and the water.

[0008] Optionally, the third flow channel has a first input end and a second input end, the first input end of the third flow channel is connected to the third liquid storage tank, and the second input end of the third flow channel is used to introduce a third target gas.

[0009] Optionally, the pipeline module includes a first main pipeline, a second main pipeline, a third main pipeline, a first branch pipeline, and a second branch pipeline; The first main pipeline is connected to the first liquid storage tank, the second main pipeline is connected to the second liquid storage tank, and the third main pipeline is connected to the third liquid storage tank; The third main pipeline is connected to the first main pipeline through the first branch pipeline, and is connected to the second main pipeline through the second branch pipeline; The first main pipeline forms the first flow channel, the second main pipeline forms the second flow channel, and the third main pipeline forms the third flow channel.

[0010] Optionally, the power unit includes a first power pump, a second power pump, and a third power pump, wherein the first power pump is disposed in the first main pipeline, the second power pump is disposed in the second main pipeline, and the third power pump is disposed in the third main pipeline; And / or, a one-way valve is provided on the first branch pipeline and the second branch pipeline.

[0011] Optionally, the pipeline module includes an adapter, which is provided with at least a first inlet, a second inlet, a third inlet, a first outlet, a second outlet, a third outlet, and a fourth outlet. The adapter also forms a channel structure so that the first outlet, the second outlet, and the fourth outlet are all connected to the first inlet, the first outlet and the second outlet are both connected to the second inlet, and the third inlet is connected to the third outlet. The first inlet is used to introduce the first target gas, the second inlet is connected to the output end of the first flow channel, and the third inlet is connected to the output end of the second flow channel.

[0012] Optionally, the pipeline module further includes a pipeline connector, which includes a first inlet, a second inlet, and a connector outlet, wherein the connector outlet is connected to the first inlet and the second inlet; The first inlet is connected to the fourth outlet to deliver the first target gas to the connector outlet, the second inlet is connected to the third liquid tank to deliver the third liquid to the connector outlet, and the connector outlet is used to deliver the third target fluid, which includes the first target gas and the third liquid.

[0013] Optionally, the channel structure includes: a first channel component, the first channel component including a first main channel and a first branch channel communicating with the first main channel, the first main channel being connected to the first inlet and used to deliver the first target gas to the first branch channel, the first branch channel including at least a first sub-branch channel, a second sub-branch channel and a third sub-branch channel; The second channel component includes a second main channel, which is connected to the second inlet and communicates with the first sub-diversion channel and the second sub-diversion channel respectively, so that the first target fluid and the first target gas are mixed in the first sub-diversion channel and the second sub-diversion channel; The third channel component includes a third main channel and a fourth main channel communicating with the third main channel, and the third main channel is connected to the third inlet; The first sub-diversion channel is connected to the first outlet, the second sub-diversion channel is connected to the second outlet, the fourth main channel is connected to the third outlet, and the third sub-diversion channel is connected to the fourth outlet.

[0014] Optionally, the fourth main channel is connected to the first channel component so that a portion of the first target gas flows from the first channel component to the fourth main channel, thereby mixing the second target fluid and the first target gas within the fourth main channel.

[0015] Optionally, the adapter is further provided with a fourth inlet, which is used to introduce a second target gas so that the second target gas and the second target fluid are mixed in the fourth main channel.

[0016] Optionally, the second main channel includes a first sub-channel and a second sub-channel, and the second inlet connects the first sub-channel and the second sub-channel. The first sub-channel is connected to the first sub-branch and is connected to the second sub-channel through the second inlet. The second sub-channel is connected to the second sub-branch. When the pipe parameters of the first sub-channel and the second sub-channel are the same, the lengths of the first sub-channel and the second sub-channel are equal, wherein the pipe parameters include at least the pipe shape and pipe diameter. Or... The second main channel includes a first sub-channel and a second sub-channel, and the second inlet connects the first sub-channel and the second sub-channel. The first sub-channel is connected to the first sub-channel and is connected to the second sub-channel through the second inlet. The second sub-channel is connected to the second sub-channel. Furthermore, the first sub-channel is a straight pipe, the second sub-channel has a curved section, and the length of the second sub-channel is less than the length of the first sub-channel.

[0017] Optionally, the first liquid is a coating agent, the second liquid is a foaming agent, and the third liquid is water; The first target fluid includes the coating agent and the water, the second target fluid includes the foam stock solution and the water, and the third target fluid includes the water.

[0018] Secondly, this application provides a car wash machine, including the aforementioned liquid circuit system.

[0019] Thirdly, embodiments of this application provide a cleaning device, including the liquid circuit system as described above.

[0020] The liquid circuit system provided in this application achieves independent supply and flexible mixing of multiple liquids through a design that connects a liquid storage tank to a flow channel and is centrally powered by a power unit. It not only supports the simultaneous or separate output of a single liquid (such as a third liquid) and two mixed liquids (i.e., a first target fluid formed by mixing a first liquid and a third liquid, and a second target fluid formed by mixing a second liquid and a third liquid), avoiding cross-interference when mixing different liquids, and adapting to diverse usage scenarios, but also features a simple system structure, reduced pipeline redundancy, and improved operational stability and maintenance convenience. Furthermore, this application also provides a car wash machine and cleaning device incorporating the aforementioned liquid circuit system. Therefore, the car wash machine and cleaning device possess the advantages of the aforementioned liquid circuit system, with simple piping, a minimal structure, and lightweight, compact equipment. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic block diagram of the fluid circuit system provided in the embodiments of this application; Figure 2 This is a three-dimensional structural diagram of the car wash machine provided in the embodiments of this application; Figure 3 This is a partial 3D structural diagram of a base station module; Figure 4 A schematic diagram of the three-dimensional structure of the handle module; Figure 5 This is a partial 3D structural diagram of the controller module from a first-person perspective. Figure 6 A schematic block diagram of a pipeline system provided in an embodiment of this application; Figure 7 This is a schematic block diagram of another piping system for a liquid circuit. Figure 8 This is another schematic block diagram of a hydraulic system piping. Figure 9 This is a partial 3D structural diagram of the controller module from a first-person perspective. Figure 10 This is a first-view perspective three-dimensional structural diagram of the adapter provided in the embodiments of this application; Figure 11 This is a two-dimensional structural diagram of the adapter from a second perspective. Figure 12 A third-person perspective 3D structural diagram of the adapter; Figure 13 A fourth-view 3D structural diagram of the adapter; Figure 14 For along Figure 11 A schematic diagram of the cross-sectional structure cut along line AA in the middle; Figure 15 For along Figure 13 A schematic diagram of the cross-sectional structure cut along line BB. Figure 16 For along Figure 14 A schematic diagram of the local structure at point C; Figure 17 For along Figure 14 A schematic diagram of the local structure at point D; Figure 18 For along Figure 14 A schematic diagram of the local structure at point E in the middle; Figure 19 A schematic block diagram of a cleaning apparatus provided in an embodiment of this application.

[0023] icon: 1. Liquid circuit system; 2. Liquid storage device; 21. First liquid storage tank; 22. Second liquid storage tank; 23. Third liquid storage tank; 3. Piping module; 31. First flow channel; 32. Second flow channel; 33. Third Main Channel; 34. First Main Channel; 35. Second Main Channel; 36. Third Main Channel; 37. First branch pipeline; 38. Second branch pipeline; 4. Adapter; 41. First inlet; 42. Second import; 43. Third import; 44. Fourth import; 45. First export; 46. ​​Second Exit; 47. Third Exit; 48. Fourth Exit; 5. Channel Structure; 51. First channel component; 511. First main channel; 512. First branch channel; 512a, First sub-branch channel; 512b, Second sub-branch channel; 512c, Third sub-branch channel; 52. Second channel component; 521. Second main channel; 521a. First sub-channel; 521b, Second Sub-lane; 53, Third Channel Component; 531, Third Main Channel; 532. Fourth main passage; 6. Pipe connector; 61. First inlet; 62. Second inlet; 63. Connector outlet; 7. Power unit; 71. First power pump; 72. Second power pump; 73. Third power pump; 8. Connector body; 81. First surface; 82. Second surface; 83. Third surface; 84. First extension; 85. Second extension; 86. Third extension; 87. Fourth extension component; 10. Handle module; 11. Nozzle assembly; 111. First nozzle; 112. Second nozzle; 113. Third nozzle; 113a. First sub-nozzle; 113b. Second sub-nozzle; 18. Reception tank; 20. Pipeline module; 30. Base station module; 301. Sewage tank; 100. Car wash machine; 200. Cleaning equipment Detailed Implementation The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] It is understood that descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features.

[0026] Currently available self-service car wash systems are services where car owners operate high-pressure water guns, foam spray guns, and other equipment to clean their vehicles. They offer high cost-effectiveness and a self-service operation process. However, different washing and care steps require numerous and complex pipelines to deliver the corresponding liquids, increasing the number of pipelines and the overall weight and space required. This makes them unsuitable for compact, portable, and mobile car wash machines.

[0027] Based on this, this application provides a liquid circuit system 1 and a car wash machine 100, aiming to solve the problems of existing car wash machines 100 having numerous pipelines, complex structures, and increased overall weight and space occupation. The liquid circuit system 1 can be applied to the car wash machine 100.

[0028] The following detailed description, with reference to the accompanying drawings and taking a car wash machine 100 as an example, describes some embodiments of the liquid circuit system 1 and the car wash machine 100 in this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0029] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the hydraulic system 1 of the car wash machine 100. Figure 2 This is a three-dimensional structural diagram of the car wash machine 100 provided in the embodiments of this application.

[0030] like Figure 1 and Figure 2 As shown, the car wash machine 100 includes a handle module 10, a pipe module 20, and a base station module 30. The handle module 10 is connected to the base station module 30 through the pipe module 20. The car wash machine 100 provided in this embodiment also includes a liquid system 1, which is integrated into at least one of the handle module 10, the pipe module 20, and the base station module 30. The liquid system 1 includes a liquid storage device 2, a pipeline module 3, and a power device 7. The liquid storage device 2 is connected to the pipeline module 3 to supply substances to the pipeline module 3. The power device 7 is connected to the pipeline module 3 and is used to provide power for the flow of substances in the pipeline module 3. The pipeline module 3 is used to transport substances from the liquid storage device 2 through the pipe module 20 to the handle module 10, and then from the handle module 10 to the target object.

[0031] In some implementations, such as Figure 3As shown, the liquid storage device 2 is disposed within the base station module 30. The liquid storage device 2 includes at least a first liquid storage tank 21 for supplying a first liquid, a second liquid storage tank 22 for supplying a second liquid, and a third liquid storage tank 23 for supplying a third liquid. In some embodiments, a power unit 7 is disposed within the base station module 30 to provide power for the liquid transport in the liquid storage device 2. In some embodiments, at least a portion of the pipeline module 3 is disposed within the pipeline module 20; furthermore, a portion of the pipeline module 3 is disposed within the handle module 10 and / or the base station module 30.

[0032] like Figures 2 to 6 As shown, the handle module 10 includes a nozzle assembly 11 for spraying cleaning fluid. The nozzle assembly 11 includes at least a first nozzle 111, a second nozzle 112, and a third nozzle 113. The two ends of the pipeline module 20 are respectively connected to the nozzle assembly 11 and the liquid storage device 2, and the liquid in the liquid storage device 2 is transported to the nozzle assembly 11 through the pipeline module 20.

[0033] like Figure 4 and Figure 5 As shown, the handle module 10 also includes components such as rollers and scrapers for cleaning the vehicle surface. The rollers and scrapers are spaced apart, and a second nozzle 112 is disposed between the rollers and scrapers. A first nozzle 111 is disposed on the side of the roller away from the scraper assembly. A third nozzle 113 includes a first sub-nozzle 113a and a second sub-nozzle 113b, which are disposed on both sides of the roller to spray liquid onto it. When the nozzle assembly 11 sprays liquid onto the vehicle surface, the rollers and scrapers perform wiping and brushing operations on the vehicle surface to remove stains, dust, etc., thereby achieving surface cleaning of the target vehicle.

[0034] It is understood that the first liquid, the second liquid, and the third liquid can be selected according to needs, and this application does not impose any restrictions.

[0035] For example, this application uses the first liquid as a coating agent, the second liquid as a foam concentrate, and the third liquid as water for illustration. Therefore, the user can adjust the handle module 10 according to the cleaning needs to selectively spray water, foam, or coating liquid from the nozzle assembly 11. For example, when it is necessary to clean stains and dust on the surface of the vehicle, water is sprayed from the second nozzle 112; when it is necessary to apply foam for deep cleaning of the vehicle, foam is sprayed from the first nozzle 111; and when coating protection is applied after cleaning, coating liquid is sprayed from the third nozzle 113.

[0036] It is understood that the car wash machine 100 provided in this application not only integrates multiple washing and care modes such as spraying foam, coating agent, and clean water, but also has simple piping, simple structure, and is lightweight and compact.

[0037] In some specific examples, the base station module 30 is also equipped with a sewage tank 301, and the handle module 10 also includes a sewage suction port for absorbing sewage. The handle module 10 collects sewage into the sewage tank 301 through the sewage suction port and the pipe module 20.

[0038] Please see Figure 6 ,like Figure 6 As shown, in some embodiments, the pipeline module 3 of the liquid system 1 has at least a first flow channel 31, a second flow channel 32 and a third flow channel 33. The first input end of the first flow channel 31 is connected to the first liquid storage tank 21, the second input end of the first flow channel 31 is connected to the third liquid storage tank 23, the first input end of the second flow channel 32 is connected to the second liquid storage tank 22, the second input end of the second flow channel 32 is connected to the third liquid storage tank 23, and the input end of the third flow channel 33 is connected to the third liquid storage tank 23.

[0039] The power unit 7 mixes the first liquid and the third liquid in the first flow channel 31 to form a first target fluid and outputs it from the output end of the first flow channel 31, mixes the second liquid and the third liquid in the second flow channel 32 to form a second target fluid and outputs it from the output end of the second flow channel 32, and also outputs the third liquid through the third flow channel 33 from the output end of the third flow channel 33.

[0040] In this embodiment, the liquid circuit system 1 is designed to connect the liquid storage tank and the flow channel and be centrally powered by the power unit 7, so as to achieve independent supply and flexible mixing of multiple liquids. It not only supports the synchronous or separate output of a single liquid (such as a third liquid) and two mixed liquids (i.e., a first target fluid formed by mixing the first liquid and the third liquid, and a second target fluid formed by mixing the second liquid and the third liquid), but also avoids cross-interference when different liquids are mixed, adapts to the usage requirements of diverse scenarios, and has a simple system structure, reduces pipeline redundancy, and improves the operational stability and maintenance convenience of the liquid circuit system 1.

[0041] It is understandable that when the first liquid is a coating agent, the second liquid is a foaming agent, and the third liquid is water, the first target fluid includes the coating agent and water, the second target fluid includes the foaming agent and water, and the third target fluid includes water.

[0042] It's also understandable that diluting the coating agent with water to form a coating solution not only avoids problems like uneven application and clumping caused by the viscous consistency of the original solution, but also reduces coating agent consumption and lowers usage costs. Furthermore, the diluted film is thinner and more uniform, improving adhesion to the paint and enhancing coating durability. Similarly, diluting the foam concentrate with water to form a foam solution offers advantages over the viscous concentrate. The foam solution effectively dissolves dirt, preventing insufficient localized cleaning and providing a material basis for subsequent gas flow into the pipeline to form foam. It's also easier to deliver through pipelines. Furthermore, dilution with water lowers the concentration of the original solution, reducing irritation to the paint and lowering usage costs.

[0043] For example, in the liquid system 1 of the car wash machine 100, the output end of the first channel 31 outputs a mixture of coating agent and water to form a coating liquid, the output end of the second channel 32 outputs a mixture of foam concentrate and water to form a foam liquid, and the output end of the third channel 33 outputs water. In this way, the liquid system 1 that sprays foam liquid, water and coating liquid can be integrated.

[0044] For details, please refer to Figure 7 and Figure 8 ,like Figure 7 and Figure 8 As shown, in some embodiments, the first flow channel 31 also has a third input end, which is used to introduce a first target gas so that the first target fluid and the first target gas are mixed in the first flow channel 31.

[0045] It is understood that by replacing part of the fluid volume within the delivery pipeline with gas, the amount of fluid (i.e., the first target fluid) can be reduced while meeting usage requirements, thus avoiding fluid (i.e., the first target fluid) waste. Furthermore, the gas-liquid mixture exhibits better flowability and is more suitable for channel delivery. The first target gas can be, for example, air, and this application does not impose any limitations. It is understood that air, as a gaseous medium, is non-corrosive and will not affect the performance of the first target fluid or the lifespan of the channel; moreover, air can be supplied using a low-cost air pump.

[0046] In this embodiment, no additional complex structure is required. The first target gas is introduced into the first flow channel 31 and transported through gas-liquid mixing to achieve energy saving, reduce the consumption of the first target fluid, reduce the cost of use, and ensure the stability of the transport.

[0047] In some embodiments, the second flow channel 32 further has a third input end, and the third input end of the second flow channel 32 is used to introduce a second target gas so that the second target fluid and the second target gas are mixed in the second flow channel 32.

[0048] It is understood that the second target gas may be the same as or different from the first target gas. This application does not impose any restrictions. The embodiments of this application are illustrated by taking air as an example, where both the first target gas and the second target gas are air.

[0049] In this embodiment, the second target gas is introduced into the second flow channel 32 and transported through gas-liquid mixing to achieve energy saving, reduce the consumption of the second target fluid, reduce the cost of use, and ensure the stability of the transport.

[0050] In some specific examples, the second liquid is the foam concentrate, the third liquid is water, and the second target fluid includes both the foam concentrate and water. It can be understood that when the second liquid is the foam concentrate and the third liquid is water, the second target fluid is a foam liquid formed by mixing the foam concentrate and water. Mixing the foam liquid with the second target gas (i.e., air) will form foam. The introduction of the second target gas enables the foam liquid (i.e., the second target fluid) to form foam, resulting in stronger cleaning adaptability.

[0051] In some embodiments, the third flow channel 33 has a first input end and a second input end. The first input end of the third flow channel 33 is connected to the third liquid storage tank 23, and the second input end of the third flow channel 33 is used to introduce a third target gas.

[0052] In this embodiment, the introduction of a third target gas into the third flow channel 33 can reduce the amount of the third liquid used and lower costs.

[0053] For example, a large amount of clean water is needed during the car wash operation. When air is mixed into the clean water pipeline, the amount of clean water consumed can be reduced, but the actual conveying efficiency of the fluid in the third flow channel 33 will not be affected, ensuring the actual effective water flow and guaranteeing the clean water supply intensity during the car wash.

[0054] In some embodiments, the pipeline module 3 includes a first main pipeline 34, a second main pipeline 35, a third main pipeline 36, a first branch pipeline 37, and a second branch pipeline 38. The first main pipeline 34 is connected to the first liquid storage tank 21, the second main pipeline 35 is connected to the second liquid storage tank 22, and the third main pipeline 36 is connected to the third liquid storage tank 23.

[0055] The third main pipeline 36 is connected to the first main pipeline 34 via the first branch pipeline 37, and to the second main pipeline 35 via the second branch pipeline 38. The first main pipeline 34 forms the first flow channel 31, the second main pipeline 35 forms the second flow channel 32, and the third main pipeline 36 forms the third flow channel 33.

[0056] For example, the first main pipeline 34 has a tee port, and the tee port of the first main pipeline 34 is connected to the first liquid storage tank 21 and the first branch pipeline 37 respectively to output the first target fluid to the target object. The second main pipeline 35 also has a tee port, and the tee port of the second main pipeline 35 is connected to the second liquid storage tank 22 and the second branch pipeline 38 respectively to output the second target fluid to the target object. The third main pipeline 36 has a four-way port, and the four-way port of the third main pipeline 36 is connected to the third liquid storage tank 23, the first branch pipeline 37 and the second branch pipeline 38 respectively to deliver the third liquid to the first branch pipeline 37, the second branch pipeline 38 and the target object.

[0057] In this embodiment, the first main pipeline 34, the second main pipeline 35, and the third main pipeline 36 are respectively connected to the first liquid storage tank 21, the second liquid storage tank 22, and the third liquid storage tank 23. The third liquid is diverted through the first branch pipeline 37 and the second branch pipeline 38, thereby enabling the third liquid to be mixed in the first flow channel 31 where the first liquid is flowing, and the third liquid to be mixed in the second flow channel 32 where the second liquid is flowing. The flow channel layout is simple, and no additional complex valve group is required, which is suitable for the needs of multi-fluid supply and mixing.

[0058] Specifically, the power unit 7 includes a first power pump 71, a second power pump 72, and a third power pump 73. The first power pump 71 is located in the first main pipeline 34, the second power pump 72 is located in the second main pipeline 35, and the third power pump 73 is located in the third main pipeline 36. Optionally, one-way valves are provided on the first branch pipeline 37 and the second branch pipeline 38. It can be understood that the one-way valves can prevent fluid backflow, ensure independent supply and mixing of liquid in each flow channel, and prevent liquid in the first main pipeline 34 and the second main pipeline 35 from flowing back to the third main pipeline 36, causing disorder in the liquid circuit system 1.

[0059] In this embodiment, the first power pump 71, the second power pump 72 and the third power pump 73 are configured to provide power for the liquid flow, ensuring that the liquid in each flow channel mixes and flows independently, with stable power and flexible control.

[0060] More specifically, the introduction of the first target gas, the second target gas, and the third target gas can be achieved, for example, through an adapter 4 having multiple three-way and four-way structures. It should also be noted that the first target gas, the second target gas, and the aforementioned third target gas can be the same or different; this application does not impose any limitations. This application's embodiment uses air as an example, where the first target gas, the second target gas, and the third target gas are all air. Air can be provided, for example, through an air pump.

[0061] For example, such as Figure 8As shown, the pipeline module 3 includes an adapter 4, which is used to mix a first target gas with the first target fluid and a third liquid, and to mix a second target gas with the second target fluid. As shown in the figure, the first target fluid flows into the adapter 4 through the first flow channel 31, and is then split into the second and third three-way valves via the first three-way valve. Simultaneously, the first target gas, after entering the adapter 4, is transported to the second and third three-way valves via the first four-way valve. Finally, the first target fluid mixed with the first target gas is ejected from the first sub-nozzle 113a and the second sub-nozzle 113b, respectively. The second target fluid flows into the fourth three-way valve of the adapter 4 through the second flow channel 32, and the second target gas also enters through the fourth three-way valve. The second target fluid and the second target gas are mixed through the fourth three-way valve and ejected through the first nozzle 111. Figure 9 As shown, in some embodiments, the adapter 4 is disposed on the handle module 10.

[0062] More specifically, in some examples, such as Figure 5 and Figure 8 As shown, the pipeline module 3 also includes a pipeline connector 6, which includes a first inlet 61, a second inlet 62, and a connector outlet 63. The connector outlet 63 is connected to the first inlet 61 and the second inlet 62. Specifically, the first inlet 61 is connected to a first four-way valve to deliver a first target gas to the connector outlet 63, the second inlet 62 is connected to a third liquid storage tank 23 so that a third liquid flows into the second inlet 62 through a third flow channel 33 and is delivered to the connector outlet 63, and the connector outlet 63 is connected to a second nozzle 112 to deliver a third target fluid mixed with the first target gas and the third liquid to the second nozzle 112.

[0063] Please see Figures 10 to 14 ,like Figures 10 to 14 As shown, in some embodiments, the adapter 4 is provided with at least a first inlet 41, a second inlet 42, a third inlet 43, a first outlet 45, a second outlet 46, a third outlet 47, and a fourth outlet 48. A channel structure 5 is also formed within the adapter 4 so that the first outlet 45, the second outlet 46, and the fourth outlet 48 are all connected to the first inlet 41; the first outlet 45 and the second outlet 46 are both connected to the second inlet 42; and the third inlet 43 is connected to the third outlet 47. Specifically, the first inlet 41 is used to introduce the first target gas, the second inlet 42 is connected to the output end of the first flow channel 31, and the third inlet 43 is connected to the output end of the second flow channel 32.

[0064] For example, the first target fluid formed by mixing the first liquid and the third liquid flows into the second inlet 42 through the output end of the first flow channel 31, and the second target fluid formed by mixing the second liquid and the third liquid flows into the third inlet 43 through the output end of the second flow channel 32. The first target gas introduced through the first inlet 41 mixes with the first target fluid inside the adapter 4 before being output, achieving bidirectional confluence of the first target gas and the first target fluid. This not only simplifies the gas-liquid mixing structure but also reduces the loss of the first target fluid. Simultaneously, the connection between the third inlet 43 and the third outlet 47 ensures the separate output of the second target fluid.

[0065] For example, the first outlet 45 is connected to the first sub-nozzle 113a, the second outlet 46 is connected to the second sub-nozzle 113b, the third outlet 47 is connected to the first nozzle 111, and the fourth outlet 48 is connected to the first inlet 61 of the pipe connector 6. In this way, the coating liquid can be sprayed to both sides of the roller through the first sub-nozzle 113a and the second sub-nozzle 113b, foam can be sprayed to the target object through the first nozzle 111, and clean water can be sprayed to the target object through the second nozzle 112.

[0066] In this embodiment, the adapter 4 with three inlets and four outlets integrates a multi-channel integrated design, which can realize gas-liquid mixing (mixing of the first target gas and the first target fluid) and dual-path (such as the first target fluid and the second target fluid) independent output without additional pipeline splicing, greatly simplifying the system pipeline layout and reducing the number of components.

[0067] In some embodiments, the adapter 4 includes a connector body 8 having a first surface 81 and a second surface 82 located at opposite ends, and a third surface 83 that is in contact with the first surface 81 and the second surface 82, respectively.

[0068] The first inlet 41, the second inlet 42, the third inlet 43 and the fourth inlet 44 are disposed on the first surface 81, and the first outlet 45, the second outlet 46 and the third outlet 47 are disposed on the third surface 83, and the first outlet 45, the second outlet 46 and the third outlet 47 are arranged at intervals along the length direction of the connector body 8.

[0069] In this embodiment, four inlets are concentrated on the first surface 81, and three outlets are concentrated on the third surface 83 and are spaced apart along the length of the connector. This arrangement provides space for the installation of each pipeline, avoids pipeline crossing and entanglement, and can accommodate at least seven interfaces without increasing the volume of the connector body 8, thus providing a material basis for simplifying the pipeline structure for fluid transportation.

[0070] In some embodiments, the adapter 4 further includes a first extension 84, a second extension 85, and a third extension 86. The first extension 84 extends onto the third surface 83 and forms a first output channel communicating with the first outlet 45. The second extension 85 extends onto the third surface 83 and forms a second output channel communicating with the third outlet 47. The third extension 86 extends onto the third surface 83 and forms a third output channel communicating with the second outlet 46. At least two of the first extension 84, the second extension 85, and the third extension 86 have different extending directions.

[0071] It is understandable that the first extension 84, the second extension 85, and the third extension 86 can be connected to the first outlet 45, the third outlet 47, and the second outlet 46 respectively by plugging in, or the first extension 84, the second extension 85, and the third extension 86 can be integrally formed with the adapter 4 without the need for additional sealing components, thus reducing the risk of sealing failure. At the same time, mass production through molds reduces production costs.

[0072] In this embodiment, the third surface 83 of the adapter 4 is provided with three extensions, which are connected to the outlet to form independent output channels. At least two extensions extend in different directions, which can realize the delivery of fluid to target objects at different locations, thereby expanding the delivery range of the fluid.

[0073] Specifically, in some embodiments, the first outlet 45 and the second outlet 46 are disposed on opposite sides of the third outlet 47. The first extension 84 extends in a direction inclined away from the second extension 85, and the third extension 86 extends in a direction inclined away from the second extension 85.

[0074] For example, extensions can be provided according to the requirements of the spraying direction and angle. For instance, for a car wash machine 100 or cleaning device 200 equipped with a roller, a first extension 84 and a third extension 86 can be provided at both ends of the roller, with the first extension 84 connected to the first sub-nozzle 113a and the third extension 86 connected to the second sub-nozzle 113b to spray coating liquid onto the roller. Both the first sub-nozzle 113a and the second sub-nozzle 113b are inclined outwards towards both ends of the roller, with the inclination direction conforming to the end structure of the roller, ensuring that the coating liquid covers the roller in all directions and improving the uniformity of the cleaning liquid distribution on the roller surface. The second extension 85 is connected to the first nozzle 111 to spray foam.

[0075] It is understandable that the specific layout and setting of the three extension parts not only optimizes the compact pipe layout space inside the car wash machine 100, but also covers the cleaning positions of different areas at the same time. For example, the second extension part 85, as the main cleaning nozzle, together with the auxiliary nozzles on both sides (the first extension part 84 and the third extension part 86), realizes the all-round synchronous cleaning of the car body.

[0076] In this embodiment, the first extension 84 and the third extension 86 are distributed on both sides of the second extension 85 and are inclined outward relative to the second extension 85. This arrangement solves the problems of entanglement and interference of multi-channel pipelines, optimizes the pipeline layout space, and can simultaneously cover the cleaning positions of different areas.

[0077] In some embodiments, the second surface 82 is provided with a receiving groove 18. Optionally, a fourth outlet 48 is provided on the second surface 82. It is understood that the receiving groove 18 can be used to store speakers, etc., to improve space utilization. The receiving groove 18 can be integrally formed with the adapter 4 to ensure structural integrity and avoid additional processing that would increase production costs.

[0078] It can also be understood that the fourth outlet 48, located on the second surface 82, serves as an extended channel for fluid transport, forming a multi-channel integrated structure to achieve multi-position, multi-functional fluid transport. Specifically, in some examples, the adapter 4 further includes a fourth extension 87, which extends onto the second surface 82 and forms a fourth output channel communicating with the fourth outlet 48. The fourth extension 87 can be connected to the fourth outlet 48 as a separate component via a plug-in connection, or it can be integrally formed with the adapter 4. Specifically, the fourth extension 87 connects to the first inlet 61 of the pipe connector 6 to deliver the first target gas to the connector outlet 63.

[0079] In addition, the fourth outlet 48 is located on the second surface 82, which is different from the first outlet 45, the second outlet 46 and the third outlet 47 which are located on the third surface 83. The outlets are located on different surfaces and do not interfere with each other, which can meet the dual requirements of fixed installation and multi-position conveying.

[0080] Specifically, in some examples, the first inlet 61 of the pipe connector 6 is connected to the fourth outlet 48 to deliver a first target gas to the connector outlet 63 of the pipe connector 6, the second inlet 62 of the pipe connector 6 is connected to the third liquid tank 23 to deliver a third liquid to the connector outlet 63 of the pipe connector 6, and the connector outlet 63 is connected to the second nozzle 112 to deliver a third target fluid mixed with the first target gas and the third liquid to the second nozzle 112.

[0081] In this embodiment, by providing a pipe connector 6 and connecting it to the fourth outlet 48 for conveying the first target gas and the third liquid storage tank 23 for storing the third liquid, the third target fluid formed by mixing the first target gas and the third liquid is conveyed to the target object through the connector outlet 63.

[0082] Please see Figures 12 to 16 ,like Figures 12 to 16As shown, in some embodiments, the channel structure 5 includes a first channel component 51, a second channel component 52, and a third channel component 53. The first channel component 51 includes a first main channel 511 and a first branch channel 512 connected to the first main channel 511. The first main channel 511 is connected to the first inlet 41 and is used to deliver the first target gas to the first branch channel 512. The first branch channel 512 includes at least a first sub-branch channel 512a, a second sub-branch channel 512b, and a third sub-branch channel 512c.

[0083] The second channel component 52 includes a second main channel 521, which is connected to the second inlet 42 and communicates with the first sub-diversion channel 512a and the second sub-diversion channel 512b, respectively, so that the first target fluid and the first target gas are mixed in the first sub-diversion channel 512a and the second sub-diversion channel 512b. The third channel component 53 includes a third main channel 531 and a fourth main channel 532 communicating with the third main channel 531. The third main channel 531 is connected to the third inlet 43. Among them, the first sub-diversion channel 512a is connected to the first outlet 45, the second sub-diversion channel 512b is connected to the second outlet 46, the fourth main channel 532 is connected to the third outlet 47, and the third sub-diversion channel 512c is connected to the fourth outlet 48.

[0084] In this embodiment, a channel structure 5 is integrated on a single adapter 4, comprising a first channel component 51, a second channel component 52, and a third channel component 53, each corresponding to an inlet and outlet. The first target gas flows in through the first inlet 41 and is then distributed via the first main channel 511 of the first channel component 51 to the first sub-diversion channels 512a, 512b, and 512c, providing a stable gas source for multi-path gas-liquid mixing. The second main channel 521 is connected to the first and second sub-diversion channels 512a and 512b, enabling directional mixing of the first target fluid and the first target gas, ensuring mixing uniformity and output stability, and avoiding cross-interference. The third channel component 53 independently transports the second target fluid, without affecting the gas-liquid mixing channels, thus meeting the need for independent output of multiple fluids.

[0085] In some embodiments, the fourth main channel 532 is connected to the first channel component 51 so that a portion of the first target gas flows from the first channel component 51 to the fourth main channel 532, so that the second target fluid and the first target gas are mixed in the fourth main channel 532.

[0086] In this embodiment, the first target gas is introduced into the fourth main channel 532 through the connection between the fourth main channel 532 and the first channel component 51, so that the second target fluid and the first target gas are mixed in the fourth main channel 532 and then output. It can be understood that when the second liquid is foam concentrate, the third liquid is water, and the second target fluid is a foam liquid formed by mixing foam concentrate and water, the introduction of the first target gas into the foam liquid can form foam with stronger cleaning power.

[0087] like Figure 14 and Figure 16 As shown, in some embodiments, the second main channel 521 includes a first sub-channel 521a and a second sub-channel 521b, and a second inlet 42 connects the first sub-channel 521a and the second sub-channel 521b. The first sub-channel 521a is connected to the first sub-branch channel 512a and is connected to the second sub-channel 521b through the second inlet 42. The second sub-channel 521b is connected to the second sub-branch channel 512b. When the pipe parameters of the first sub-channel 521a and the second sub-channel 521b are the same, the lengths of the first sub-channel 521a and the second sub-channel 521b are equal, wherein the pipe parameters include at least the pipe shape and the pipe diameter.

[0088] Alternatively, the second main channel 521 includes a first sub-channel 521a and a second sub-channel 521b, and a second inlet 42 connects the first sub-channel 521a and the second sub-channel 521b. The first sub-channel 521a is connected to the first sub-branch channel 512a and is connected to the second sub-channel 521b through the second inlet 42. The second sub-channel 521b is connected to the second sub-branch channel 512b. Furthermore, the first sub-channel 521a is a straight pipe, the second sub-channel 521b has a curved portion, and the length of the second sub-channel 521b is less than the length of the first sub-channel 521a.

[0089] It should be noted that factors affecting pipe resistance include at least the pipe shape, pipe diameter, and pipe length. Specifically, the pipe shape includes, for example, whether it is a bend or a straight pipe. It is understandable that a bend changes the direction of fluid flow, generating localized eddies and impacts, resulting in greater resistance than a straight pipe under the same conditions.

[0090] It's also understandable that the smaller the pipe diameter, the larger the frictional contact area during fluid flow, and the higher the resistance is usually. Conversely, the longer the pipe length, the longer the frictional contact time between the fluid and the pipe wall, and the greater the frictional resistance along the way.

[0091] Therefore, to ensure that the same fluid is supplied to two pipelines at opposite ends through a single inlet, and that the fluid velocity or flow rate is the same, it is necessary to compensate for the difference in pipeline resistance by matching pipeline parameters. The pipeline parameters include at least the pipeline shape and the pipe diameter.

[0092] For example, if two pipe segments have the same diameter and are both straight, then the lengths of the two pipe segments must be the same to ensure that the flow velocity and flow rate of the fluid flowing through the two pipe segments are the same. In some specific examples, when two pipe segments have the same diameter, but one segment is a straight pipe and the other is a bend (e.g., the first sub-branch 521a with the bend is a bend, and the second sub-branch 521b is a branch pipe), since the fluid resistance generated by the bend is greater than that of the straight pipe under the same conditions, the length of the bend should be less than the length of the straight pipe to compensate for the resistance difference between the two pipe segments in order to ensure that the flow velocity and flow rate of the fluid flowing through the bend and the straight pipe are the same.

[0093] In this embodiment, by specifically adjusting the pipe length and shape at both ends of the fluid inlet, the resistance difference between the two pipe sections with the same pipe diameter is offset, ensuring that the fluid output parameters (such as fluid velocity and flow rate) at both ends are consistent, thus meeting the requirements for synchronous operation. This solution eliminates the need for additional complex flow regulating valves and other components, achieving resistance balance solely through optimization of pipe length and shape, ensuring the stability and reliability of fluid delivery, and effectively reducing structural complexity and manufacturing costs. Furthermore, it not only supports the conventional design of two straight pipe sections of equal length but also accommodates combinations of straight and bent pipes, adapting to different installation space requirements.

[0094] Specifically, such as Figure 8 , Figure 10 and Figure 16 As shown, in some embodiments, the adapter 4 is further provided with a fourth inlet 44, which is used to introduce a second target gas so that the second target gas and the second target fluid are mixed in the fourth main channel 532.

[0095] It is understandable that using a single air pump to meet the high flow and high pressure requirements of multi-path air supply would place high demands on the pump's performance and result in significant procurement costs. However, by using dual air pumps instead of a single high-cost air pump, only conventional low-cost air pumps are needed to meet the requirements, significantly reducing equipment procurement costs and thus substantially lowering production costs.

[0096] In this embodiment, in addition to the first inlet 41 for introducing the first target gas, a fourth inlet 44 is added to the adapter 4 for introducing the second target gas. This enables dual independent gas supply to adapt to gas-liquid mixing scenarios in different flow channels, making the gas supply more flexible. Moreover, using dual gas pumps instead of a single gas pump can further reduce production costs.

[0097] This application also provides a cleaning device 200, including the liquid circuit system 1 as described above.

[0098] It is understandable that the cleaning device 200 also has the advantages of the aforementioned liquid circuit system 1. Therefore, the cleaning device 200 has simple pipelines, simple structure, and is lightweight and compact.

[0099] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0100] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0101] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A fluid circuit system, characterized in that, include: A liquid storage device, the liquid storage device comprising at least a first liquid storage tank for supplying a first liquid, a second liquid storage tank for supplying a second liquid, and a third liquid storage tank for supplying a third liquid; The pipeline module has at least a first flow channel, a second flow channel and a third flow channel. The first input end of the first flow channel is connected to the first liquid storage tank, the second input end of the first flow channel is connected to the third liquid storage tank, the first input end of the second flow channel is connected to the second liquid storage tank, the second input end of the second flow channel is connected to the third liquid storage tank, and the input end of the third flow channel is connected to the third liquid storage tank. A power unit, connected to the pipeline module, is used to provide power for the flow of matter in the pipeline module, so that the first liquid and the third liquid are mixed in the first flow channel to form a first target fluid and output from the output end of the first flow channel, and the second liquid and the third liquid are mixed in the second flow channel to form a second target fluid and output from the output end of the second flow channel, and the third liquid is also output from the output end of the third flow channel through the third flow channel.

2. The fluid circuit system according to claim 1, characterized in that, The first flow channel also has a third input end, which is used to introduce a first target gas so that the first target fluid and the first target gas are mixed in the first flow channel.

3. The fluid circuit system according to claim 1, characterized in that, The second flow channel also has a third input end, and the third input end of the second flow channel is used to introduce a second target gas so that the second target fluid and the second target gas are mixed in the second flow channel.

4. The hydraulic system according to claim 3, characterized in that, The second liquid is foam concentrate, the third liquid is water, and the second target fluid includes the foam concentrate and the water.

5. The fluid circuit system according to claim 1, characterized in that, The third flow channel has a first input end and a second input end. The first input end of the third flow channel is connected to the third liquid storage tank, and the second input end of the third flow channel is used to introduce a third target gas.

6. The fluid circuit system according to claim 1, characterized in that, The pipeline module includes a first main pipeline, a second main pipeline, a third main pipeline, a first branch pipeline, and a second branch pipeline; The first main pipeline is connected to the first liquid storage tank, the second main pipeline is connected to the second liquid storage tank, and the third main pipeline is connected to the third liquid storage tank; The third main pipeline is connected to the first main pipeline through the first branch pipeline, and is connected to the second main pipeline through the second branch pipeline; The first main pipeline forms the first flow channel, the second main pipeline forms the second flow channel, and the third main pipeline forms the third flow channel.

7. The fluid circuit system according to claim 6, characterized in that, The power unit includes a first power pump, a second power pump, and a third power pump. The first power pump is located in the first main pipeline, the second power pump is located in the second main pipeline, and the third power pump is located in the third main pipeline. And / or, a one-way valve is provided on the first branch pipeline and the second branch pipeline.

8. The fluid circuit system according to claim 1, characterized in that, The pipeline module includes an adapter, which is provided with at least a first inlet, a second inlet, a third inlet, a first outlet, a second outlet, a third outlet, and a fourth outlet. The adapter also forms a channel structure so that the first outlet, the second outlet, and the fourth outlet are all connected to the first inlet, the first outlet and the second outlet are both connected to the second inlet, and the third inlet is connected to the third outlet. The first inlet is used to introduce the first target gas, the second inlet is connected to the output end of the first flow channel, and the third inlet is connected to the output end of the second flow channel.

9. The fluid circuit system according to claim 8, characterized in that, The pipeline module also includes a pipeline connector, which includes a first inlet, a second inlet, and a connector outlet, and the connector outlet is connected to the first inlet and the second inlet. The first inlet is connected to the fourth outlet to deliver the first target gas to the connector outlet, the second inlet is connected to the third liquid tank to deliver the third liquid to the connector outlet, and the connector outlet is used to deliver the third target fluid, which includes the first target gas and the third liquid.

10. The fluid circuit system according to claim 8, characterized in that, The channel structure includes: The first channel component includes a first main channel and a first branch channel connected to the first main channel. The first main channel is connected to the first inlet and is used to deliver the first target gas to the first branch channel. The first branch channel includes at least a first sub-branch channel, a second sub-branch channel and a third sub-branch channel. The second channel component includes a second main channel, which is connected to the second inlet and communicates with the first sub-diversion channel and the second sub-diversion channel respectively, so that the first target fluid and the first target gas are mixed in the first sub-diversion channel and the second sub-diversion channel; The third channel component includes a third main channel and a fourth main channel communicating with the third main channel, and the third main channel is connected to the third inlet; The first sub-diversion channel is connected to the first outlet, the second sub-diversion channel is connected to the second outlet, the fourth main channel is connected to the third outlet, and the third sub-diversion channel is connected to the fourth outlet.

11. The fluid circuit system according to claim 10, characterized in that, The fourth main channel is connected to the first channel component so that a portion of the first target gas flows from the first channel component to the fourth main channel, thereby mixing the second target fluid and the first target gas within the fourth main channel.

12. The fluid circuit system according to claim 10, characterized in that, The adapter is also provided with a fourth inlet, which is used to introduce a second target gas so that the second target gas and the second target fluid are mixed in the fourth main channel.

13. The fluid circuit system according to claim 10, characterized in that, The second main channel includes a first sub-channel and a second sub-channel, and the second inlet connects the first sub-channel and the second sub-channel. The first sub-channel is connected to the first sub-branch and is connected to the second sub-channel through the second inlet. The second sub-channel is connected to the second sub-branch. When the pipe parameters of the first sub-channel and the second sub-channel are the same, the lengths of the first sub-channel and the second sub-channel are equal, wherein the pipe parameters include at least the pipe shape and pipe diameter; or... The second main channel includes a first sub-channel and a second sub-channel, and the second inlet connects the first sub-channel and the second sub-channel. The first sub-channel is connected to the first sub-channel and is connected to the second sub-channel through the second inlet. The second sub-channel is connected to the second sub-channel. Furthermore, the first sub-channel is a straight pipe, the second sub-channel has a curved section, and the length of the second sub-channel is less than the length of the first sub-channel.

14. The fluid circuit system according to claim 1, characterized in that, The first liquid is a coating agent, the second liquid is a foaming agent, and the third liquid is water; The first target fluid includes the coating agent and the water, the second target fluid includes the foam stock solution and the water, and the third target fluid includes the water.

15. A car wash machine, characterized in that, Includes the fluid circuit system according to any one of claims 1-14.

16. A cleaning device, characterized in that, Includes the fluid circuit system according to any one of claims 1-14.

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