Internet intelligent self-service car washing machine with water tank

Abstract

The utility model discloses an internet intelligent self -service car washer with water tank, it includes car washer body and set up in car washer body's clear water module and foam module, clear water module includes the clear water tank of metal material and sets up in the second high low liquid level appearance and float ball valve of clear water tank, the lower part of clear water tank is equipped with the water outlet, and the water outlet connects clear water output pipe, clear water output pipe connects the second end of liquid inlet tee joint after connecting the diaphragm pump, flowmeter in proper order, and the third end of liquid inlet tee joint connects the booster motor pump. Foam module includes foam stock solution tank and foam mixing tank, the utility model discloses can automatically to clear water tank and foam mixing tank carry out water replenishment and liquid replenishment, has effectively promoted foam liquid mixing quality and user's car washing experience under the premise of guaranteeing system performance.

Description

Technical Field

[0001] This utility model relates to the field of car wash machine technology, and more specifically, to an internet-connected intelligent self-service car wash machine with a water tank. Background Technology

[0002] With the rapid development of society and the economy and the accelerated pace of life, the number of cars owned is increasing year by year, and traditional manual car washing methods can no longer meet the growing demand. Self-service car wash machines, as a new type of car washing equipment, are gradually gaining popularity among car owners due to their convenience, efficiency, and environmental friendliness. In the self-service car wash process, foam liquid is a key cleaning medium, playing a role in reducing friction, preventing scratches, improving cleaning efficiency, and providing a protective coating. However, most self-service car wash machines have strict requirements for the water pressure entering the booster pump, maintaining it between 1.4 and 2 kg. If this pressure is not met, it will affect the washing effect or damage the machine's performance. Furthermore, foam liquid replenishment still relies on traditional manual methods. Operators need to regularly inspect each car wash machine, checking the level gauge or opening the foam liquid tank to determine if replenishment is needed. This method is not only time-consuming and labor-intensive but also prone to untimely or excessive replenishment, leading to wasted foam liquid or machine malfunction. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides an internet-connected intelligent self-service car wash machine with a water tank. The system automatically replenishes water and liquid in the water tank and foam mixing tank by setting up a clean water tank, a foam concentrate tank and a foam mixing tank in the car wash machine body, thereby effectively improving the foam liquid mixing quality and the user's car wash experience while ensuring system performance.

[0004] This utility model provides an Internet-connected intelligent self-service car wash machine with a water tank, which includes a car wash machine body and a clean water module installed inside the car wash machine body;

[0005] The water purification module includes a metal water purification tank and a second high and low level gauge installed inside the water purification tank. The second high and low level gauge is fixed inside the water purification tank by a fixing device on the tank wall. The high level float of the second high and low level gauge is set at the warning level of the water purification tank, and the low level float is set at the lowest level of the water purification tank.

[0006] The clean water tank is also equipped with a float valve, which is installed on the water inlet of the clean water tank to control the water level in the clean water tank.

[0007] The lower part of the clean water tank is provided with a water outlet, which is connected to the clean water output pipe; the clean water output pipe is connected in sequence to the diaphragm pump and the flow meter, and then connected to the second end of the liquid inlet tee, and the third end of the liquid inlet tee is connected to the booster motor pump.

[0008] Furthermore, the clean water tank is also equipped with a heater and a temperature sensor for intelligent temperature control management of the clean water tank.

[0009] Furthermore, the Internet-connected smart self-service car wash machine also includes a foam module, which includes a foam concentrate tank and a foam mixing tank.

[0010] Furthermore, the foam concentrate tank includes a foam concentrate tank body and a low level gauge disposed within the foam concentrate tank body; one end of the foam concentrate output pipe is connected to a foam diaphragm pump, and the other end extends into the foam concentrate tank, with the bottom opening of the foam concentrate output pipe located at the bottom of the inner cavity of the foam concentrate tank.

[0011] Furthermore, the lowest liquid level in the foam concentrate tank is higher than the bottom opening of the foam concentrate output pipe.

[0012] Furthermore, the foam mixing box is provided with a partition structure inside the box, which divides the inner cavity of the box into an upper foam mixing cavity and a lower foam storage cavity.

[0013] Furthermore, the foam mixing chamber is equipped with a foam mixing chamber clean water input pipe and a foam concentrate input pipe. One end of the foam mixing chamber clean water input pipe is connected to a water replenishment solenoid valve, and the other end extends downward and bends into a first L-shaped pipe. The horizontal pipe of the first L-shaped pipe is a porous drainage pipe located at the bottom of the foam mixing chamber. One end of the foam concentrate input pipe is connected to a foam diaphragm pump, and the other end extends downward and bends into a second L-shaped pipe. The horizontal pipe of the second L-shaped pipe is a porous foam concentrate discharge pipe located at the bottom of the foam mixing chamber. The lowest liquid level of the foam mixing chamber is higher than the pipe body and pipe opening of the porous drainage pipe and the porous foam concentrate discharge pipe.

[0014] Furthermore, one side of the foam mixing box is provided with a columnar channel that leads directly to the lower foam storage cavity, and the columnar channel is isolated from the foam mixing cavity.

[0015] Furthermore, the partition structure has multiple needle-like spikes with downward-pointing tips fixed on the bottom surface of the top of the foam storage cavity, and multiple needle-like spikes with obliquely downward-pointing tips fixed on the side wall of the foam mixing cavity and columnar channel.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model incorporates a clean water tank inside the car wash machine body, allowing for a continuous water supply regardless of water pressure, provided there is tap water available. This, combined with a diaphragm pump, satisfies the stringent requirements of self-service car wash machines for water pressure, particularly for the booster pump, thus broadening the machine's adaptability to various water inlet conditions. Furthermore, the metal clean water tank facilitates heat exchange between the continuously replenished tap water and the machine body, significantly reducing internal temperature. Additionally, the heated clean water and the foam created by mixing it with the heated water enhance cleaning power and efficiency, resulting in superior car wash performance and significantly improved customer satisfaction.

[0018] 2. This utility model divides the foam mixing box into a foam mixing chamber and a foam storage chamber, and sets up a porous drainage pipe and a porous foam concentrate drain pipe submerged in the foam mixing chamber at the lowest liquid level. This ensures that the water and foam concentrate replenishment are always inside the liquid, effectively reducing contact with air and thus significantly reducing the generation of foam during the mixing process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of an internet-connected intelligent self-service car wash machine with a water tank, according to this utility model.

[0020] Figure 2 This is a schematic diagram of a foam module and a water purification module according to one embodiment of the present invention.

[0021] In the picture:

[0022] The car wash machine body 100, foam module 200, foam mixing tank 210, foam concentrate tank 220, partition structure 211, foam mixing chamber 212, foam storage chamber 213, electric underwater sealing valve 214, columnar channel 215, high and low level gauges 216, foam mixing chamber clean water input pipe 217, foam concentrate input pipe 218, high-level float 219, low-level float 221, porous foam concentrate discharge long pipe 222, porous drainage long pipe 223, low level gauge 224, low level gauge float 225, foam concentrate output pipe 226, built-in vacuum cleaner 320, clean water module 400, clean water tank 401, second high and low level gauges 402, and booster motor pump 510. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, further explanation is provided below in conjunction with the accompanying drawings and embodiments.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or car wash machine 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 car wash machine.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the car wash machine or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] As a specific implementation example, see attached Figure 1-2 As shown, this utility model provides an Internet-connected smart self-service car wash machine with a water tank, including a car wash machine body 100 and a clean water module 400 and a foam module 200 disposed in the car wash machine body 100.

[0027] The car wash machine body 100 is internally divided into two accommodating areas by a metal support plate. The control main board, foam module 200, water module 400, communication module, and circuit structure are located in the upper first accommodating area. The booster motor pump 510, the built-in vacuum cleaner 320 in the vacuum module, and the water circuit module are located in the lower second accommodating area. The foam module 200 and water module 400 are connected to external tap water pipes through the water circuit module. The control main board is electrically connected to the foam module 200, water module 400, communication module, water circuit module, vacuum module, and other intelligent control structures. The power supply of the control main board, various modules within the car wash machine, booster motor pump 510, and various solenoid valves, as well as the communication between the power supply of the circuit structure and the cloud server through the communication module, is clear to those skilled in the art and will not be described in detail here.

[0028] A one-way door is rotatably connected to the front edge of one side of the car wash machine body 100. The outer surface of the door is equipped with a display screen and multiple function buttons, which are electrically connected to the main control board. The bottom of the car wash machine body 100 has four casters for movement, and foot cups are installed between two casters to secure the machine. The outer wall of the car wash machine body 100 also has hooks for hanging accessories such as water guns, foam guns, and suction nozzles.

[0029] The clean water module 400 includes a clean water tank 401, a second high / low level gauge 402 and a float valve installed inside the clean water tank 401, with the specific structure as follows:

[0030] The clean water tank 401 is made of metal. The second high / low level gauge 402 is fixed inside the clean water tank 401 by a fixing device on the tank wall. The high-level float of the second high / low level gauge 402 is set at the warning level of the clean water tank 401. A float valve is installed on the water inlet of the clean water tank (the installation method and principle of the float valve are known existing technology and will not be described here) to control the water level of the clean water tank 401. When the water level in the clean water tank 401 drops, the float valve opens, and clean water is injected into the clean water tank 401 through the water inlet pipe. When the water level rises to the set maximum level, the float valve closes, stopping the water injection, ensuring that the clean water tank 401 always maintains a suitable water level, providing a stable water source for the car wash machine.

[0031] If the highest liquid level is lower than the warning level, the water level will not reach the warning level under normal operating conditions. If it does reach the warning level, it indicates a malfunction in the clean water tank 401. The second high / low level gauge 402 will then send an alarm to the main control board, which will shut off the solenoid valve on the clean water tank inlet pipe, stopping water intake and notifying management personnel for inspection and repair. An overflow port is located on the side wall of the tank at the height of the high-level float. The overflow port is connected to an external outlet pipe outside the car wash machine to prevent liquid overflow under abnormal conditions, which could damage internal components of the self-service car wash machine. Simultaneously, if the low-level float of the second high / low level gauge 402 is at the lowest liquid level in the clean water tank 401, the water level will not reach the lowest level under normal operating conditions. If it does reach the lowest level, it indicates a malfunction in the clean water tank module. The second high / low level gauge 402 will then send an alarm to the main control board, which will then shut off the solenoid valve on the clean water tank inlet pipe, stopping water intake and notifying management personnel for inspection and repair.

[0032] The lower part of the clean water tank 401 has a water outlet, which is connected to a clean water output pipe. The clean water output pipe is connected in sequence to a diaphragm pump and a flow meter, and then to the second end of an inlet tee. The third end of the inlet tee is connected to the booster pump 510. A pressure relief valve is also connected to the clean water output pipe, which is connected to a drain pipe extending outside the self-service car wash machine. The flow meter on the clean water output pipe protects the booster pump 510; when the water flow rate is lower than the set value, the motor automatically shuts off to prevent dry friction between the booster pump 510 plunger and sealing components.

[0033] The added clean water tank 401 can achieve the following three technical effects:

[0034] 1. Existing self-service car wash machines without a clean water tank have strict requirements on the water pressure entering the machine, specifically the pressure of the booster pump. This pressure must be maintained between 1.4 and 2 kg / m³. Failure to meet this standard will affect the washing effect or damage the machine's performance. With a clean water tank, as long as there is tap water in the water supply line, regardless of the water pressure, a diaphragm pump can be used to supply water for car washing, making it more adaptable to various water inlet conditions.

[0035] 2. During prolonged operation, car wash machines generate significant heat from internal components such as the booster pump and vacuum cleaner. Excessive heat not only affects operating efficiency but can also shorten the machine's lifespan. Adding a metal water tank helps absorb and dissipate heat through heat exchange with tap water, significantly reducing internal temperatures and minimizing issues like lubrication failure and insulation damage caused by overheating. This extends the machine's lifespan, prevents performance degradation due to high temperatures, and ensures a smooth and efficient car wash process.

[0036] 3. The heated water and the foam made by mixing the heated water can significantly enhance the cleaning ability because warm water can dissolve grease and stains more effectively. At the same time, warm water is gentler on the car paint surface, making the cleaning process more thorough, improving cleaning efficiency, and resulting in better car wash results, which can significantly improve customer satisfaction.

[0037] As one embodiment of this utility model, the clean water tank can be further intelligently temperature-controlled. That is, a heater and a temperature sensor are installed in the clean water tank, and the temperature sensor monitors the temperature of the heated water in real time. The heating power is automatically adjusted or heating is stopped as needed. Intelligent management ensures that the car wash machine can efficiently utilize heat energy while avoiding energy waste, and accurately control the water temperature during the car wash process. At the same time, it is also beneficial in winter when the temperature is too low or the car wash machine is not running for a long time. The heater can appropriately raise the water temperature, improve cleaning efficiency, and prevent the water pipes from freezing and cracking.

[0038] When the user uses the clean water function, the foam solenoid valve on the foam mixture outlet pipe is closed and the diaphragm pump on the clean water output pipe is opened. At this time, clean water is drawn into the booster motor pump 510 and output through the clean water gun pipeline.

[0039] The foam module 200 includes a foam mixing tank 210 and a foam concentrate tank 220, with the following specific structure:

[0040] The foam mixing tank 210 includes a mixing tank body and a partition structure 211 disposed within the tank body. The partition structure 211 divides the inner cavity of the tank body into an upper foam mixing chamber 212 and a lower foam storage chamber 213. An electric underwater sealing valve 214 is installed on the partition structure 211, and the electric underwater sealing valve 214 is electrically connected to the control main board of the self-service car wash machine. An independent columnar channel 215 is provided on one side or in one corner of the foam mixing tank 210, leading directly to the lower foam storage chamber 213. This channel is not connected to the foam mixing chamber 212, and the top opening of the independent columnar channel 215 is above the highest liquid level line of the foam mixing chamber 212. The foam mixing chamber 212 is equipped with a first high / low liquid level gauge 216, a foam mixing chamber clean water input pipe 217, and a foam concentrate input pipe 218. The first high / low level gauge 216 is fixed inside the foam mixing chamber 212 by a fixing device on the tank wall. The high-level float 219 of the first high / low level gauge 216 is located above the highest liquid level in the foam mixing chamber 212, and the low-level float 221 is located at the lowest liquid level in the foam mixing chamber 212. One end of the foam mixing chamber clean water inlet pipe 217 extends out of the foam mixing chamber 212, connects to the water supply solenoid valve, and is connected to an external tap water source through the water circuit module. The water supply solenoid valve is designed with an anti-backflow function. The other end of the foam mixing chamber clean water inlet pipe 217 extends downward and bends into a first L-shaped pipe. The horizontal pipe of the first L-shaped pipe is a multi-hole drainage long pipe 223 (or a multi-hole drainage coil), which is located at the bottom of the foam mixing chamber 212. A flow meter is installed on the pipe connected to the tap water to monitor the flow of clean water. If there is no flow (water outage), the management personnel will be notified to take appropriate action. One end of the foam concentrate inlet pipe 218 extends out of the foam mixing chamber 212 and connects to a foam diaphragm pump. The foam diaphragm pump is designed with an anti-backflow function. The other end of the foam concentrate inlet pipe 218 extends downward and bends into a second L-shaped pipe. The horizontal pipe of the second L-shaped pipe is a porous foam concentrate drain pipe 222 (or a porous foam concentrate drain coil). The porous foam concentrate drain pipe 222 is located at the bottom of the foam mixing chamber 212. The liquid at the lowest level submerges the porous drain pipe 223 and the body and inlet of the porous foam concentrate drain pipe 222. Furthermore, the porous foam concentrate drain pipe 222 is positioned higher than the porous drain pipe 223, which is beneficial for the uniform dispersion and dilution of foam concentrate molecules by water molecules. The lower part of the foam storage chamber 213 is provided with a mixture outlet, which is connected to a foam mixture outlet pipe. The foam mixture outlet pipe is connected in sequence to a foam solenoid valve and a throttle valve, and then to the first end of an inlet tee. The third end of the inlet tee is connected to a booster pump 510. The throttle valve can be used to slightly adjust the actual amount of foam entering the booster pump 510 according to actual needs, thereby adjusting the concentration of foam sprayed by the foam gun.

[0041] The lower outlet of the electric underwater sealing valve 214 is connected to a guide hose, and the other end of the guide hose opens at the bottom of the foam storage chamber 213. Under normal use, the lowest liquid level of the foam storage chamber 213 submerges the other end of the guide hose.

[0042] Furthermore, the partition structure 211 is fixed with multiple needle-like spikes pointing downwards on the bottom surface of the top of the foam storage cavity 213, and multiple needle-like spikes pointing obliquely downwards are fixed on the side wall of the foam mixing cavity 212 and the columnar channel 215, which are used to eliminate foam that may be generated by the foam liquid during the mixing and adding process.

[0043] The high-level float 219 of the first high-low level gauge 216 is positioned above the highest liquid level (maximum water level line) after the foam mixing chamber 212 is fully replenished. It monitors the status of each component. Under normal operating conditions, the liquid level will not exceed the maximum level. When the liquid level reaches the position of the high-level float 219, it indicates a problem with a component in the system. The first high-low level gauge 216 then sends an alarm to the control mainboard, which stops the addition of clean water and foam concentrate, notifies management personnel for inspection and repair, and stops the car wash machine's service after the current user finishes washing their car. Furthermore, an overflow port is provided on the side wall of the tank at the height of the high-level float 219. The overflow port connects to an external outlet pipe opening outside the car wash machine to prevent liquid overflow under abnormal conditions, which could damage the internal components of the self-service car wash machine.

[0044] Furthermore, in this invention, the lowest liquid level of the foam mixing chamber 212 submerges the porous drainage pipe 223 and the porous foam concentrate discharge pipe 222, as well as their openings. Similarly, the lowest liquid level of the foam concentrate tank 220 submerges the opening of the foam concentrate output pipe 226. This design ensures that all inlets and outlets are always submerged in liquid during the addition of water and foam concentrate, thus preventing air from being trapped during mixing and significantly reducing foam generation. Additionally, the partition structure 211 has multiple downward-pointing needle-like spikes fixed to its bottom surface at the top of the foam storage chamber 213, and multiple obliquely downward-pointing needle-like spikes are fixed to the side walls of the foam mixing chamber 212 and the columnar channel 215. This design is also highly effective in eliminating any small amount of foam that may be generated during mixing and adding liquid. When the foam rises with the liquid and touches the needle-like spikes, it breaks, further defoaming the foam. In other words, this invention employs a dual defoaming technique.

[0045] The foam concentrate tank 220 includes a concentrate tank body and a low-level gauge 224 installed inside the concentrate tank body. The float 225 of the low-level gauge is located at the lowest liquid level of the foam concentrate tank 220, and the liquid at the lowest liquid level of the foam concentrate tank 220 submerges the bottom opening of the foam concentrate output pipe 226. One end of the foam concentrate output pipe 226 is connected to a foam diaphragm pump, and the other end extends into the foam concentrate tank 220, with its bottom opening at the bottom of the inner cavity of the foam concentrate tank. Filter devices are installed at the opening of the foam concentrate output pipe 226 and the outlet of the foam storage chamber 213 to filter impurities in the liquid. The main control board is electrically connected to the flow meter, water replenishment solenoid valve, first high and low level gauge 216, low-level gauge 224, foam diaphragm pump, and other electrical control components of the self-service car wash machine.

[0046] The specific usage process is as follows:

[0047] When a user uses the foam function, the foam solenoid valve on the foam mixture outlet pipe opens, and the diaphragm pump on the clean water outlet pipe starts operating. At this time, clean water and foam mixture are drawn into the booster motor pump 510. Under these conditions, if the foam mixture is not replenished, one tank of foam mixture typically lasts only about 10 days. For managers of self-service car wash machines operating in multiple locations with multiple machines per location, manually replenishing the foam mixture is frequent and labor-intensive, and can also lead to untimely replenishment and affect user experience.

[0048] After applying the intelligent replenishment of foam module of this utility model, when the foam mixture in foam mixing tank 210 reaches the level of the low float 221 of high and low level gauge 216, the control board issues a command to close the electric underwater sealing valve 214, and the foam mixing chamber 212 and foam storage chamber 213 become two isolated chambers. The foam mixture in foam storage chamber 213 continues to be supplied to users (the amount of foam mixture in foam storage chamber 213 is generally enough to ensure the continued use of several users, which is sufficient to end the mixing process in foam mixing chamber 212), and the foam mixture replenishment process begins in foam mixing chamber 212.

[0049] First, the foam diaphragm pump draws a certain amount of raw foam solution from the foam raw solution tank at a set time, and outputs it through the porous foam raw solution discharge pipe 222 to the foam mixing chamber 212, which still contains a certain amount of mixed solution. The pumping time t of the foam diaphragm pump is calculated and sent to the control main board. The porous foam raw solution discharge pipe 222 is a porous liquid discharge device, which can evenly disperse the foam raw solution into the liquid in the foam mixing tank 210 through the porous pipe.

[0050] Next, the foam diaphragm pump is shut off, and the water replenishment solenoid valve is opened. Clean water is then injected into the bottom of the foam mixing chamber through the porous drain pipe 223. The amount injected is calculated by the control board based on the ratio of the extracted stock solution to the required foam mixture. The porous drain pipe 223 is a porous drainage device. Because the porous foam stock solution drain pipe 222 is positioned slightly higher than the porous drain pipe 223, the porous drain pipe 223 facilitates further flushing and dilution of the foam stock solution molecules by the water flow. Under the flushing and agitation of the clean water, the foam stock solution accelerates to achieve its first uniform mixing.

[0051] This design utilizes the principle of porous jets to allow the foam concentrate and water to mix thoroughly over a larger contact area, thereby improving mixing efficiency.

[0052] Then, the water replenishment solenoid valve is closed, and the foam membrane pump is reopened to inject the foam concentrate. The pumping time t1 is calculated and sent to the control board. Then, the water replenishment solenoid valve is reopened again to inject the required amount of clean water into the bottom of the foam mixing tank 210 through the porous drain pipe 223. The principle of porous jetting is used to accelerate the further dilution of the foam concentrate by the clean water. Under the flushing and stirring of the clean water, the foam concentrate quickly completes its second uniform mixing. The process of closing the water replenishment solenoid valve, opening the foam membrane pump, and pumping in the foam concentrate is repeated. In other words, this invention employs both a porous drainage device and a method of intermittently adding and mixing the foam concentrate and clean water. These two techniques are combined to generate the foam mixture in the foam mixing chamber 212.

[0053] The method of adding water and foam concentrate in stages, compared to mixing them all at once, has the advantages and benefits mainly in the following aspects:

[0054] 1. Improve mixing uniformity: Adding a large amount of foam concentrate to water at once can easily cause localized areas to have excessively high concentrations of foam concentrate, while other areas will have relatively low concentrations. Adding it in stages can avoid this situation, allowing the foam concentrate to be more evenly dispersed in the water;

[0055] 2. Improved mixing efficiency: Although adding the solution in stages may seem to increase the number of steps, in reality, because the amount of stock solution mixed each time is smaller, the mixing process can be completed more quickly. Adding the solution in stages allows the foam stock solution molecules to combine more fully with the water molecules, thereby improving the fluidity of the foam stock solution molecules and making it easier to disperse evenly throughout the water.

[0056] 3. Reduce residue: Adding a large amount of foam concentrate at once may cause some of it to adhere to the container walls, making it difficult to mix evenly and resulting in waste. Adding it in stages can effectively reduce this situation, allowing for better control of the mixing process and thus obtaining a higher quality foam concentrate product.

[0057] For the foam mixing chamber 212, the total amount of liquid added from the low level to the required level is calibrated. Based on the required concentration of the foam mixture, the total amount of clean water and foam concentrate needed can be calculated. Following the calibrated number of additions, the required amount of clean water and foam concentrate for each addition can be calculated. The clean water volume is controlled by a flow meter, and the foam concentrate volume is controlled by a foam membrane pump according to the extraction time. The main control board controls the alternating addition of foam concentrate and clean water according to the calibrated number of additions. After mixing, the main control board opens the electric underwater sealing valve 214, and the foam mixture flows into the foam storage chamber 213 through the guide hose, continuing to supply the user for car washing. This completes the replenishment of the mixture.

[0058] As a special case, because the amount of foam concentrate manually added may not always be standard—sometimes more, sometimes less—it might happen on a specific occasion among the calibrated additions. When the foam diaphragm pump has added half the concentrate, the low-level alarm sounds, and the pump stops drawing concentrate. At this point, the extraction time sent to the control board is t. k， Then control the motherboard according to the extraction time t k Based on the amount of foam concentrate pumped in, the required amount of clean water is calculated for the current wash. Clean water is added by controlling the clean water flow meter and the water replenishment solenoid valve to ensure the overall mixing ratio of the foam mixture in the foam mixing chamber 212 is up to standard. After mixing, the control board opens the electric underwater sealing valve 214, and the mixture flows into the foam storage chamber 213 through the guide hose, continuing to supply the user for car washing. This completes the foam concentrate replenishment process.

[0059] Each time the foam mixing tank 210 reaches a low level, the above process is automatically repeated until the foam concentrate tank 220 reaches a low level. When the concentrate in the foam concentrate tank 220 reaches the minimum level, the low level indicator 224 sends an alarm to the control board, and the foam diaphragm pump stops pumping concentrate, awaiting replenishment by the management personnel. If the management personnel fail to replenish the concentrate in time, when the foam mixing tank 210 also reaches the low level, the high / low level indicator 216 sends an alarm to the control board. After the two alarms are combined, the control board, after the current user finishes using the car wash, issues a command to temporarily stop the self-service car wash machine until the management personnel replenish the concentrate, at which point the self-service car wash machine resumes operation. In this way, when the foam concentrate reaches a low level, the system sends a message to the administrator through the background, allowing for manual replenishment of foam concentrate, greatly extending the refilling cycle and saving manpower.

[0060] This invention effectively improves the mixing quality of foam mixture while significantly reducing foam generation during the mixing process. By monitoring the foam concentrate level in real time, it ensures timely replenishment of the foam concentrate, guarantees the normal operation of the self-service car wash machine, and enhances the user experience of the car wash machine.

[0061] Furthermore, the other structural features of the self-service car wash machine adopt existing common structures and are existing technologies, which will not be elaborated here.

[0062] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0063] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An internet-connected intelligent self-service car wash machine with a water tank, characterized in that: It includes the car wash machine body and the clean water module installed inside the car wash machine body; The water purification module includes a metal water purification tank and a second high and low level gauge installed inside the water purification tank. The second high and low level gauge is fixed inside the water purification tank by a fixing device on the tank wall. The high level float of the second high and low level gauge is set at the warning level of the water purification tank, and the low level float is set at the lowest level of the water purification tank. The clean water tank is also equipped with a float valve, which is installed on the water inlet of the clean water tank to control the water level in the clean water tank. The lower part of the clean water tank is provided with a water outlet, which is connected to the clean water output pipe; the clean water output pipe is connected in sequence to the diaphragm pump and the flow meter, and then connected to the second end of the liquid inlet tee, and the third end of the liquid inlet tee is connected to the booster motor pump.

2. The internet-connected intelligent self-service car wash machine with water tank according to claim 1, characterized in that, The clean water tank is also equipped with a heater and a temperature sensor.

3. The internet-connected intelligent self-service car wash machine with water tank according to claim 2, characterized in that, The internet-connected smart self-service car wash machine also includes a foam module, which comprises a foam concentrate tank and a foam mixing tank.

4. The internet-connected intelligent self-service car wash machine with water tank according to claim 3, characterized in that, The foam raw material tank includes a foam raw material tank body and a low liquid level gauge installed inside the foam raw material tank body; one end of the foam raw material output pipe is connected to a foam diaphragm pump, and the other end extends into the foam raw material tank body, with the bottom opening of the foam raw material output pipe opening at the bottom of the inner cavity of the foam raw material tank body.

5. The internet-connected intelligent self-service car wash machine with water tank according to claim 4, characterized in that, The lowest liquid level in the foam concentrate tank is higher than the bottom opening of the foam concentrate output pipe.

6. The internet-connected intelligent self-service car wash machine with water tank according to claim 5, characterized in that, The foam mixing box has a partition structure inside, which divides the inner cavity of the box into an upper foam mixing cavity and a lower foam storage cavity.

7. The internet-connected intelligent self-service car wash machine with water tank according to claim 6, characterized in that, The foam mixing chamber is equipped with a foam mixing chamber clean water input pipe and a foam concentrate input pipe. One end of the foam mixing chamber clean water input pipe is connected to a water replenishment solenoid valve, and the other end extends downward and bends into a first L-shaped pipe. The horizontal pipe of the first L-shaped pipe is a porous drainage pipe located at the bottom of the foam mixing chamber. One end of the foam concentrate input pipe is connected to a foam diaphragm pump, and the other end extends downward and bends into a second L-shaped pipe. The horizontal pipe of the second L-shaped pipe is a porous foam concentrate discharge pipe located at the bottom of the foam mixing chamber. The lowest liquid level in the foam mixing chamber is higher than the pipe body and pipe opening of the porous drainage pipe and the porous foam concentrate discharge pipe.

8. The internet-connected intelligent self-service car wash machine with water tank according to claim 7, characterized in that, The foam mixing box has a columnar channel on one side that leads directly to the lower foam storage cavity, and the columnar channel is isolated from the foam mixing cavity.

9. The internet-connected intelligent self-service car wash machine with water tank according to claim 8, characterized in that, The partition structure has multiple needle-like spikes with downward-pointing tips fixed on the bottom surface of the top of the foam storage cavity, and multiple needle-like spikes with obliquely downward-pointing tips fixed on the side wall of the foam mixing cavity and columnar channel.

Images