Improved and upgraded internet intelligent self-service car washer operation control method

Abstract

The invention discloses an improved and upgraded internet intelligent self-service car washing machine operation control method. The method comprises the following steps that a clear water washing self-service car washing step and an automatic water supplementing step are executed through a wrong gun use prevention module and a clear water module; the steps of foaming, decontaminating, self-service car washing and automatic liquid supplementing are executed through the wrong gun use prevention module and the foam module; and the self-service car washing and dust collection step is executed through the dust collection module. The performance of the self-service car washing machine can be effectively improved, and the car washing customer satisfaction degree is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent self-service car washing machines, and in particular to an improved and upgraded operation control method of an Internet intelligent self-service car washing machine. Background Art

[0002] In recent years, with the continued growth in car ownership, the demand for car washes has been growing rapidly. However, traditional car washes have struggled to meet the market's demand for efficiency and convenience. Consequently, the number of internet-connected smart self-service car washes, which offer a convenient, self-service model where car owners can wash their own cars, has surpassed tens of thousands. This growth is driven by the efficiency, cost-effectiveness, and convenience of these self-service car washes.

[0003] However, existing internet-connected smart self-service car washes typically require manual refilling of the car wash consumables—foam mixture. This not only increases operational complexity for managers but can also easily interrupt the cleaning process due to untimely refills, impacting vehicle owners' normal use. Furthermore, the filters in traditional car wash vacuum cleaners can easily become clogged during use, resulting in reduced suction power and the need for frequent replacement or cleaning, among other unsatisfactory performance issues. Therefore, research is focused on improving and upgrading existing internet-connected smart self-service car washes to make them more intelligent, environmentally friendly, and provide drivers with more convenient and efficient car wash services. Summary of the Invention

[0004] In order to achieve the above objectives, in order to make up for the above shortcomings, an embodiment of the present invention provides an improved and upgraded Internet intelligent self-service car washing machine operation control method, which aims to effectively improve the performance of the intelligent self-service car washing machine.

[0005] The present invention provides an improved and upgraded Internet intelligent self-service car washing machine operation control method, which includes the following steps:

[0006] The self-service car wash and automatic water replenishment steps are performed through the anti-wrong-use gun module and the clean water module;

[0007] The anti-misuse gun module and foam module are used to perform foaming and decontamination self-service car washing and automatic fluid replenishment steps;

[0008] The self-service car wash vacuuming step is performed through the vacuuming module.

[0009] Furthermore, the steps of self-service car washing with clean water and automatic water replenishment are performed by the anti-wrong-use gun module and the clean water module, including:

[0010] S11, the user starts the water purification function;

[0011] S12. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes:

[0012] S121, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the water-clearing key; if so, executing S13; otherwise, reminding the user to change guns;

[0013] S122, obtain the signals of the clean water flow meter and the foam flow meter, and determine whether the user has changed the gun. If so, execute S13; otherwise, the booster motor pump stops working and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S13.

[0014] S13, use the clean water car wash function;

[0015] S14: replenishing clean water into the clean water tank through the clean water module.

[0016] Furthermore, the reminder includes voice reminder and visual reminder.

[0017] Furthermore, using the clean water car washing function in S13 means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to close and the diaphragm pump on the clean water output pipe to open, and the clean water is sucked into the booster motor pump and then output through the clean water gun pipeline to wash the car with clean water.

[0018] Furthermore, S14, the step of replenishing clean water into the clean water tank through the clean water module, includes:

[0019] During the use of clean water, when the water level in the clean water tank drops, the float valve in the clean water tank opens, and clean water is injected into the clean water tank through the clean water tank inlet pipe. When the water level rises to the set maximum liquid level, the float valve closes and stops injecting water, ensuring that the clean water tank always maintains an appropriate water level and provides a stable water source for the car washing machine.

[0020] Furthermore, the steps of foaming, decontamination self-service car washing and automatic fluid replenishment are performed by the anti-wrong-use gun module and the foam module, including:

[0021] S21, the user starts the bubble function;

[0022] S22. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes:

[0023] S221, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the foam key. If so, execute S13; otherwise, remind the user to change guns;

[0024] S222. Obtain signals from the clean water flow meter and the foam flow meter to determine whether the user has changed the gun. If so, execute S23. Otherwise, the booster motor pump stops and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S23.

[0025] S23, use the foam car wash function;

[0026] S24, adding the foam mixing step to the foam mixing box through the foam module.

[0027] Furthermore, using the foam car washing function in S23 means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to open and the diaphragm pump on the clean water output pipe to open, and the clean water and foam mixture are sucked into the booster motor pump together, and then output through the foam gun pipeline to perform foam car washing.

[0028] Furthermore, S24, the step of adding foam mixing water to the foam mixing box through the foam module, comprises:

[0029] S241, determining whether the liquid level of the foam mixture in the foam mixing tank has reached a low liquid level, if yes, executing S242, otherwise continuing the determination;

[0030] S242, controlling the electric underwater sealing valve to close, so that the foam mixing chamber and the foam storage chamber become two separated chambers;

[0031] S243, adding and mixing clean water and foam stock solution into the foam mixing chamber in intervals and in batches, including:

[0032] Foam stock solution addition: The foam diaphragm pump extracts the stock solution from the foam stock solution barrel according to the set time and outputs it to the foam mixing chamber through the porous foam stock solution discharge long tube. The foam diaphragm pump calculates the extraction time t and sends it to the control mainboard;

[0033] Adding clean water: Turn off the foam diaphragm pump, open the water supply solenoid valve, and inject clean water into the bottom of the foam mixing chamber through the porous drainage tube. The amount of water injected is the ratio of the amount of extracted original liquid calculated by the control mainboard according to the extraction time t to the required foam mixture.

[0034] S244: Determine whether the total amount of liquid required by the foam mixing chamber has been reached. If so, open the electric underwater sealing valve to allow the foam mixture to flow into the foam storage chamber for the user to use for car washing. Otherwise, continue adding and mixing.

[0035] Furthermore, the self-service car wash vacuuming step is performed by the vacuuming module, including:

[0036] S31, the user starts the vacuuming function;

[0037] S32, the electrically controlled sealed drain valve is powered on and closed, and the car washer's built-in vacuum cleaner is started;

[0038] S33, sucking the dust-laden airflow from the vehicle through a suction nozzle, and filtering and classifying the dust-laden airflow in an external classification drain box;

[0039] S34, the control mainboard activates the electronically controlled sealed drain valve to open after power is turned off according to the end instruction, and removes excess water in the box;

[0040] S35, the control main board turns off the built-in vacuum cleaner, and the vacuuming ends.

[0041] The beneficial effects of the present invention are:

[0042] 1. The present invention determines whether the user is using the wrong gun by obtaining the pressure sensor signal on the gun handle held by the user, and determines whether the user has changed the gun by obtaining the signals of the clean water flow meter and the foam flow meter, thereby ensuring that the user uses the gun correctly during the car washing process;

[0043] 2. The present invention controls the electric underwater sealing valve to close, thereby dividing the foam mixing box into two chambers: a foam mixing chamber and a foam storage chamber. This allows the foam mixture in the foam storage chamber to continue to be available to the user during the foam mixing chamber refill process, ensuring the user's normal car washing process without interruption due to lack of foam mixture, thereby improving user experience.

[0044] 3. The present invention improves the mixing efficiency and significantly reduces the probability of foam generation by adding clean water and foam stock solution in intervals and mixing them in the foam mixing chamber;

[0045] 4. The extraction time sent to the control main board by the foam diaphragm pump of the present invention is t k， Then the control main board is based on the extraction time t k The amount of foam stock liquid pumped in under the condition of , calculates the amount of clean water required for the current time, and adds clean water by controlling the clean water flow meter and the water replenishment solenoid valve to ensure that the overall mixing ratio of the foam mixed liquid in the foam mixing chamber is qualified. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 It is a schematic diagram of the three-dimensional structure of the improved and upgraded Internet intelligent self-service car washing machine of the present invention;

[0047] Figure 2 This is a schematic diagram of the internal structure of an improved and upgraded Internet intelligent self-service car washing machine according to one embodiment of the present invention;

[0048] Figure 3 Schematic diagram of a foam module, a water module and an anti-misuse gun module according to one embodiment of the present invention;

[0049] Figure 4 This is a schematic diagram of the three-dimensional structure of an off-machine classification drain box according to one embodiment of the present invention;

[0050] Figure 5 This is a structural view of the AA-direction cross section of an external classification drain box according to one embodiment of the present invention;

[0051] Figure 6 This is a structural view of the BB direction cross section of an external classification drain box according to an embodiment of the present invention.

[0052] In the picture:

[0053] Car washing machine body 100, foam module 200, foam mixing box 210, foam raw liquid tank 220, partition structure 211, foam mixing chamber 212, foam storage chamber 213, electric underwater sealing valve 214, columnar channel 215, high and low liquid level meter 216, foam mixing chamber clean water input pipe 217, foam raw liquid input pipe 218, high position float 219, low position float 221, porous foam raw liquid drain long pipe 222, porous drainage long pipe 223, low liquid level meter 224, low liquid level meter float 225 25, foam concentrate output pipe 226, external classification drain tank 310, front door 311, locking mechanism 312, first connection port 313, first side wall 314, second connection port 315, drain outlet 316, perforated plate 317, second side wall 318, trash can 319, built-in vacuum cleaner 320, clean water module 400, clean water tank 401, second high and low liquid level meter 402, anti-misuse gun module 500, clean water output pipe 503, foam output pipe 504, booster motor pump 510. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions and advantages of the present invention clearer, the following Figure 1-6 The following are further described with reference to the accompanying drawings.

[0055] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or car wash machine that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements that are inherent to such process, method, article, or car wash machine.

[0056] As an example of a specific implementation, as shown in the attached Figure 1-3As shown, the present invention provides an improved and upgraded internet-connected intelligent self-service car wash machine, comprising a car wash machine body 100, the interior of which is divided into two accommodating areas by a metal support cross plate. A control mainboard, a foam module 200, a water module 400, a communication module, and a circuit structure are disposed in the upper first accommodating area. A booster motor pump 510, a built-in vacuum cleaner 320 in the vacuum module, and a water module are disposed in the lower second accommodating area. The foam module 200 and the water module 400 are each connected to an external tap water pipeline via the water module. The control mainboard is electrically connected to the foam module 200, the water module 400, the communication module, the water module, the vacuum module, and other components requiring intelligent control. The power supply of the control mainboard, the various modules within the car wash machine, the booster motor pump 510, and the various solenoid valves, through the circuit structure and the communication module with the cloud server are well known to those skilled in the art and will not be described in detail here.

[0057] A one-way switch door is pivotally connected to the front edge of the car washer body 100. A display screen and multiple function buttons are located on the outer surface of the switch door. These buttons are electrically connected to the control board. The car washer body 100 has four casters at its base for mobility, with a footrest positioned between two of the casters to secure the machine. Hooks are also provided on the outer wall of the car washer body 100 for hanging items such as a water gun, foam gun, and nozzle.

[0058] The improved and upgraded Internet intelligent self-service car washing machine provided by the present invention includes a foam module 200:

[0059] The foam module 200 includes a foam mixing tank 210 and a foam liquid tank 220, and the specific structure is as follows:

[0060] The foam mixing tank 210 includes a mixing tank body and a partition structure 211 disposed therein. The partition structure 211 divides 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 is electrically connected to the self-service car wash machine's control board. An independent columnar channel 215 is provided on one side or corner of the foam mixing tank 210, providing direct access to the lower foam storage chamber 213. This channel is disconnected from the foam mixing chamber 212, and the top of the independent columnar channel 215 opens above the highest liquid level in the foam mixing chamber 212. A first high and low liquid level indicator 216, a fresh water inlet pipe 217, and a foam concentrate inlet pipe 218 are located within the foam mixing chamber 212. A first high-low level meter 216 is fixed to the foam mixing chamber 212 via a fixture on the chamber wall. The high-level float 219 of the first high-low level meter 216 is located above the highest liquid level in the foam mixing chamber 212, while 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 and connects to a water supply solenoid valve. This valve is designed with backflow prevention. The other end of the foam mixing chamber clean water inlet pipe 217 extends downward and curves into a first L-shaped pipe. The transverse pipe of the first L-shaped pipe is a long multi-porous drain pipe 223 (which can also be a multi-porous drain coil). The long multi-porous drain pipe 223 is located at the bottom of the foam mixing chamber 212. A flow meter is installed on the tap water line to monitor the clean water flow. If there is no flow (water outage), the management staff is notified and appropriate measures are taken. One end of the foam stock solution inlet pipe 218 extends out of the foam mixing chamber 212 and connects to a foam diaphragm pump, which is designed with a backflow prevention function. The other end of the foam stock solution inlet pipe 218 extends downward and bends into a second L-shaped pipe. The horizontal pipe of the second L-shaped pipe is a long porous foam stock solution discharge pipe 222 (which can also be a multi-porous foam stock solution discharge coil). The multi-porous foam stock solution discharge pipe 222 is located at the bottom of the foam mixing chamber 212; the lowest liquid level submerges the multi-porous drainage pipe 223 and the pipe body and pipe opening of the multi-porous foam stock solution discharge pipe 222. Furthermore, the position of the multi-porous foam stock solution discharge pipe 222 is higher than that of the multi-porous drainage pipe 223, which facilitates the uniform dispersion and dilution of the foam stock solution molecules by water molecules. A mixed liquid outlet is provided at the bottom of the foam storage chamber 213, connected to a foam mixed liquid outlet pipe. This pipe is connected in sequence to a foam solenoid valve, a throttle valve, and then to the first end of a liquid inlet tee. The third end of the liquid inlet tee is connected to a booster motor pump 510. The throttle valve allows for fine-tuning of the actual amount of foam entering the booster motor pump 510, thereby adjusting the concentration of foam sprayed by the foam gun.

[0061] The lower liquid outlet of the electric underwater sealing valve 214 is connected to a diversion hose, the other end of which 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 diversion hose.

[0062] Furthermore, the partition structure 211 is located on the bottom surface of the top of the foam storage chamber 213 and is fixed with a plurality of needle-like spike structures with the tips pointing downward, and the foam mixing chamber 212 and the side wall of the columnar channel 215 are fixed with a plurality of needle-like spike structures with the tips pointing obliquely downward, which are used to eliminate foam that may be generated by the foam liquid during the mixing and adding process.

[0063] The high-level float 219 of the first high-low liquid level meter 216 is positioned above the highest liquid level (highest water level line) after the foam mixing chamber 212 is fully replenished. It is used to monitor the status of various components. Under normal standard operating conditions, the liquid level will not exceed the highest liquid level. When the liquid level reaches the position of the high-level float 219, it indicates that a problem has occurred in a component in the system. The first high-low liquid level meter 216 then alerts the control board, which stops the addition of clean water and foam stock solution, notifies the management staff to conduct inspection and maintenance, and stops the car wash service after the current car wash user finishes washing. Furthermore, an overflow port is provided on the side wall of the box at the height of the high-level float 219. The overflow port is connected to the outflow pipe opening outside the car wash to prevent liquid from overflowing under abnormal conditions and causing damage to the internal components of the self-service car wash machine.

[0064] Furthermore, the liquid at the lowest level of the foam mixing chamber 212 of the present invention submerges the porous drainage long tube 223 and the porous foam stock liquid discharge long tube 222 and the tube mouth, and the liquid at the lowest level of the foam stock liquid tank 220 submerges the tube mouth of the foam stock liquid output pipe 226. The design of this structure is to ensure that during the process of adding clean water and foam stock liquid, each liquid inlet and outlet is always submerged under the liquid, thus avoiding the entrainment of air during the mixing process, thereby greatly reducing the generation of foam. In addition, the partition structure 211 is located on the bottom surface of the top of the foam storage chamber 213 and is fixed with a plurality of needle-like spike structures with the tips pointing downward, and the foam mixing chamber 212 and the columnar channel 215 are fixed with a plurality of needle-like spike structures with the tips pointing obliquely downward. The design of this structure is also very conducive to eliminating the small amount of foam that may be generated by the foam liquid during the mixing and liquid addition process. When the foam rises with the liquid and touches the needle-like spike structure, the foam will burst, thereby playing a further role in defoaming. In other words, the present invention adopts a double defoaming technical means.

[0065] The foam liquid tank 220 includes a liquid tank body and a low liquid level meter 224 disposed within the liquid tank body. The float 225 of the low liquid level meter is located at the lowest liquid level of the foam liquid tank 220. The liquid at the lowest liquid level of the foam liquid tank 220 submerges the bottom nozzle of the foam liquid output pipe 226. One end of the foam liquid output pipe 226 is connected to the foam diaphragm pump, while the other end extends into the foam liquid tank 220, with the bottom nozzle opening at the bottom of the inner cavity of the foam liquid barrel. A filter device is provided at the opening of the foam liquid output pipe 226 and the liquid outlet of the foam storage chamber 213 for filtering impurities in the liquid. The control mainboard is electrically connected to the flow meter, water supply solenoid valve, first high and low liquid level meter 216, low liquid level meter 224, foam diaphragm pump, and other electronic control components of the self-service car wash machine.

[0066] The specific usage process is as follows:

[0067] 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 turns on. Clean water and the foam mixture are then drawn into the booster motor pump 510. In this case, if the foam mixture is not replenished, a tank of foam mixture typically lasts only about 10 days. For self-service car wash operators operating multiple locations with multiple machines per location, manual replenishment of the foam mixture is frequent and labor-intensive, and can also result in delayed refills, impacting user experience.

[0068] After applying the intelligent fluid replenishment of the foam module of the present invention, when the foam mixture in the foam mixing box 210 reaches the liquid level of the low-level float 221 of the high and low liquid level meter 216, the control main board sends an instruction, the electric underwater sealing valve 214 is closed, and the foam mixing chamber 212 and the foam storage chamber 213 become two separated chambers. The foam mixture in the foam storage chamber 213 continues to be available for users to use (the foam mixture reserve in the foam storage chamber 213 can generally ensure the continued use of several users, which is sufficient to complete the mixing process in the foam mixing chamber 212), and the foam mixture replenishment process starts in the foam mixing chamber 212.

[0069] First, the foam diaphragm pump draws a set amount of foam liquid from the foam stock solution tank at a set time, then delivers it through the porous foam stock solution pipe 222 to the foam mixing chamber 212, where a certain amount of mixed liquid is still present. The pump calculates the pump's extraction time t and sends it to the control board. The porous foam stock solution pipe 222 is a multi-porous liquid discharge device that evenly distributes the foam stock solution throughout the liquid in the foam mixing tank 210.

[0070] Next, the foam diaphragm pump is turned off, the water replenishment solenoid valve is opened, and clean water is injected into the bottom of the foam mixing chamber through the porous drainage tube 223. The amount of water injected is calculated by the control board based on the ratio of the amount of raw liquid extracted to the required foam mixture. The porous drainage tube 223 is a multi-porous drainage device. Because the porous foam raw liquid drainage tube 222 is slightly higher than the porous drainage tube 223, it facilitates the further dilution of the foam raw liquid molecules by the flow of water molecules. Under the agitation of the clean water, the foam raw liquid accelerates the initial uniform mixing.

[0071] This design utilizes the principle of multi-hole jet to fully mix the foam concentrate and water over a larger contact area, thereby improving mixing efficiency.

[0072] The water replenishment solenoid valve is then 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. The water replenishment solenoid valve is then reopened to inject the required amount of clean water into the bottom of the foam mixing chamber 210 through the porous drainage tube 223. The principle of porous jet flow is then utilized to accelerate the further dilution of the foam concentrate by the clean water. Under the flushing and agitation of the clean water, the foam concentrate is accelerated to achieve a second uniform proportioning. Following the above process, the water replenishment solenoid valve is closed, the foam membrane pump is reopened, and the foam concentrate is pumped in. This means that while the present invention utilizes a porous drainage device, it also employs a method of mixing the foam concentrate and clean water in intervals. These two technical approaches are combined to produce the foam mixture in the foam mixing chamber 212.

[0073] Compared with all-at-once mixing, the advantages and benefits of adding clean water and foam solution in batches are mainly reflected in the following aspects:

[0074] 1. Improve mixing uniformity: Adding a large amount of foam stock solution to clean water at one time can easily cause the concentration of foam stock solution to be too high in some areas, while it is relatively low in other areas. Adding it in batches can avoid this situation and make the foam stock solution more evenly dispersed in the clean water;

[0075] 2. Improve mixing efficiency: Although adding the foam in batches may seem to increase the number of steps, in fact, since less stock solution is mixed each time, the mixing process can be completed faster. Adding the foam in batches 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 evenly disperse them throughout the water body.

[0076] 3. Reduce residue: Adding a large amount of foam stock solution at one time may cause some of the foam stock solution to adhere to the container wall, making it difficult to mix evenly and resulting in waste. Adding it in batches can effectively reduce this occurrence and enable better control of the mixing process, thereby obtaining a higher quality foam mixture product.

[0077] For the foam mixing chamber 212, the total amount of liquid added from the low liquid level to the required liquid level is calibrated. According to the required concentration of the foam mixed liquid, the total amount of clean water and the total amount of foam stock solution required can be calculated. According to the calibrated number of times of addition, the amount of clean water and foam stock solution required each time can be calculated. The amount of clean water is controlled by the flow meter, and the amount of foam stock solution is controlled by the foam membrane pump according to the extraction time. The control main board controls the alternating addition of foam stock solution and clean water according to the calibrated number of times. After the addition and mixing, the control main board controls the opening of the electric underwater sealing valve 214, and the foam mixed liquid flows into the foam storage chamber 213 through the diversion hose and continues to be supplied to the user for car washing. The work of replenishing the mixed liquid is completed.

[0078] As a special case, because the amount of foam stock solution added manually may not always be standard, sometimes more, sometimes less, it may happen that at one of the calibrated times of adding stock solution, when the foam diaphragm pump is halfway filled, the foam stock solution reaches a low level alarm and the foam diaphragm pump stops pumping stock solution. At this time, the extraction time sent to the control main board is t k， Then the control main board is based on the extraction time t k The system calculates the amount of fresh water required for the current wash based on the amount of foam stock solution pumped in. It then controls the fresh water flowmeter and water replenishment solenoid valve to add fresh water to ensure the desired overall mixing ratio of the foam mixture within foam mixing chamber 212. Once mixed, the control board opens electric underwater sealing valve 214, allowing the mixed solution to flow through the diversion hose into foam storage chamber 213 for continued use by the user in car washing. This completes the replenishment process.

[0079] Every time the foam liquid in the foam mixing box 210 reaches a low liquid level, the above steps are automatically repeated. This continues until the foam stock liquid barrel 220 reaches a low liquid level. When the amount of stock liquid in the foam stock liquid tank 220 reaches the lowest liquid level, the low liquid level meter 224 alerts the control main board, and at the same time, the foam diaphragm pump stops extracting foam stock liquid, waiting for the manager to refill the liquid. If the manager fails to refill the liquid in time, when the foam liquid in the foam mixing box 210 also reaches a low liquid level when the liquid level switch is low, the high and low liquid level meter 216 alerts the control main board. After the two alarms are superimposed, the control main board will wait until the current car wash user has finished using it, and then issue a command to temporarily stop the self-service car wash machine's car washing work until the manager has finished refilling the liquid and the self-service car wash machine resumes operation. In this way, until the foam stock liquid reaches a low level, the system will send a message to the administrator through the background, and the administrator can manually add foam stock liquid, which greatly extends the filling cycle and saves manpower.

[0080] The present invention effectively improves the mixing quality of the foam mixture while significantly reducing the generation of foam during the mixing process. It also ensures timely replenishment of the foam stock solution by real-time monitoring of the foam stock solution level, thereby ensuring the normal operation of the self-service car washing machine and improving the user experience of the car washing machine.

[0081] The improvement and upgrade of the Internet intelligent self-service car washing machine of the present invention also includes a dust collection module:

[0082] The dust collection module includes an external classification and drainage box 310 and a built-in dust collector 320. The specific structure is as follows:

[0083] The car washing machine built-in vacuum cleaner 320 is an existing general device, which is clear to those skilled in the art and will not be described in detail here. The dust collection module also includes an external classification drain box 310 disposed outside the car washing machine and connected to the car washing machine built-in vacuum cleaner 320.

[0084] External classification drain box 310, as attached Figure 4-6 The figure shows an external waste sorting drain tank for use with a built-in vacuum cleaner 320 in a car washer. It includes a drain tank housing with a transparent front door 311, which allows for easy observation of the waste accumulation within the tank. This allows management personnel to observe the situation without opening the door, improving inspection efficiency. The transparent front door 311 is connected to the housing via at least one latch mechanism 312, which securely locks the transparent front door 311 in a closed position, ensuring a tight closure. A first connection port 313 is fixed to the top of the housing for docking with the outlet pipe of the built-in vacuum cleaner 320 in the car washer. A second connection port 315 is fixed to the first side wall 314 of the housing for connecting to the external vacuum duct of the vacuum module. The external vacuum duct is connected to the suction nozzle, allowing the vacuum system to collect dust and waste. Furthermore, a drain port 316 is provided at the bottom of the housing, equipped with an electrically controlled sealed drain valve for draining moisture from the housing.

[0085] The transparent front door 311, the first connection port 313 and the second connection port 315 of the box are all provided with sealing devices to ensure that the box is completely sealed during the vacuuming operation and to ensure the vacuuming efficiency. In addition, the diameter of the vacuuming duct connected to the second connection port 315 is increased to be larger than the size of the existing vacuuming duct leading to the built-in vacuum cleaner 320 of the car washing machine connected to the first connection port 313, so as to be able to fully accommodate large garbage. The upper part of the drain outlet 316 is covered with a filter screen with an area larger than the area of ​​the drain outlet, which is used to filter small garbage in the water. In addition, this filter screen is a flexibly removable device, which is convenient for the management personnel to take out and thoroughly clean it when cleaning, which is convenient for subsequent use. The drain outlet 316 is externally connected to a waste water pipe to guide the waste water into the sewer pipe.

[0086] A perforated plate 317 is fixedly installed at the top of the box, tilted downward. One end of the perforated plate 317 is fixedly connected to the top of the box, and the other end extends downward at an angle to the second side wall 318 of the box, forming an inclined surface at a certain angle. The first connection port 313 at the top of the box is located above the "triangular prism" space formed by this inclined surface, the top wall, and the second side wall 318. The perforated plate 317 has evenly distributed holes to allow airflow while intercepting large garbage and moisture.

[0087] Furthermore, the holes can be long strip holes with a lower eaves design, and the length of the strip is slightly smaller than the horizontal width of the perforated plate 317. Guide channels are provided on the edges of the perforated plate 317 on both sides of the long strip holes to facilitate the rapid downward flow of moisture to the side walls of the box, thereby reducing the chance of being carried away by the airflow and sucked into the built-in vacuum cleaner 320.

[0088] The structural feature of the eaves-shaped long hole is that the hole has an extended edge, which extends outward and downward to form an eaves similar to a rainproof eaves. The effect of this eaves-shaped hole is that when the dust-containing and water-containing air flow passes through the perforated plate 317, the garbage and water are intercepted outside the eaves-shaped hole wall, while the gas containing small particles and dust enters the first connecting port 313 through the hole under the eaves-shaped hole wall, and enters the built-in vacuum cleaner 320 of the car washing machine from the connecting port. This design improves the efficiency of garbage and dust classification, and improves the overall dust collection performance and filtering effect of the external classification drain box 310. At the same time, the length of the eaves can be 0.5 to 1 times the diameter of the hole. Such a length, combined with the overall length of the long strip hole, can effectively guide the particles to drip along the edge of the hole without increasing the airflow resistance too much.

[0089] Furthermore, the lower eaves-shaped design of the holes on the perforated plate 317 also includes a small curled edge, which is curled upward along the outer side of the hole edge. The function of the curled edge is to increase the mechanical strength of the hole edge and prevent damage to the hole edge during the garbage interception process. In addition, the curled edge design helps to guide moisture along the hole edge to the diversion channel on the side wall of the box, thereby effectively separating moisture from dust and garbage, reducing the wetness of the garbage and the accumulation of moisture in the box, and improving the dryness of the garbage and the convenience of subsequent processing. Furthermore, a hydrophobic coating is provided on the surface of the perforated plate 317. The function of this coating is to provide excellent hydrophobic properties, so that moisture passing through the perforated plate 317 will not be retained on the plate surface, but will quickly drip or be guided to the diversion channel. This hydrophobic coating significantly reduces the corrosion and pollution of the perforated plate 317 by moisture, thereby extending the service life of the perforated plate 317. At the same time, the hydrophobic coating can also reduce the adhesion of dust particles on the surface of the perforated plate 317, further improving the cleaning efficiency and filtering effect of the external classification drain box 310.

[0090] Furthermore, at least one guide channel is provided on the side wall of the box body, and the guide channel is adjacent to the lower end of the perforated plate 317, and is used to guide the moisture on the perforated plate 317 to the bottom of the drain box body. At one end of the rectangular perforated plate 317, adjacent to the door edge area, there is a notch of a predetermined size (the edge of the notch has a smooth transition curve). The setting of the notch is intended to provide a safe space so that when managers perform cleaning or maintenance tasks, such as taking the trash can 319 located under the perforated plate 317, they can avoid collisions between body parts and the edge of the perforated plate 317, thereby reducing the risk of injury. The design of the notch takes into account both the suspended layout of the perforated plate 317 and the personal safety of the operator, achieving an organic combination of practicality and safety.

[0091] Inside the box, there is a trash can 319, which has at least one transparent front, so that it can be combined with the transparent front door of the external classification drain box 310 to easily observe the garbage accumulation status in the can. The trash can 319 is used to receive and store large garbage that falls from the perforated plate 317; a boss is provided at the bottom of the box cavity, and the trash can 319 is movably placed on the boss at the bottom of the box cavity. When cleaning, the trash can 319 can be taken out of the box to clean the garbage in the can. The bottom of the trash can is provided with a concave structure, and the concave structure and the boss are interference fit. In the design of the concave structure of the trash can and the boss at the bottom of the drain box, the concave structure at the bottom of the trash can and the boss adopt an interference fit. Through the slight difference in size, the trash can can be placed firmly and not easily tipped over. This design utilizes the tight connection characteristics of the interference fit to improve the stability of the trash can. Furthermore, the edge of the concave structure of the trash can 319 forms a groove with the wall of the trash can, and a drainage hole is provided at the bottom of the groove. A spherical crown structure protruding toward the inner cavity of the trash can is also provided in the center of the concave structure, so that water can flow out of the inside of the trash can 319 more easily, thereby reducing the soaking time of large garbage in the trash can 319 and effectively reducing the risk of corruption of large garbage; the design height of the boss is sufficient to allow water to flow out through the drainage hole and then be smoothly guided to the drain port 316 at the bottom of the box; a gap is left between the side wall of the trash can 319 and the side wall of the box to allow the water guided by the diversion channel to flow directly to the bottom of the box.

[0092] The working process of the dust collection module is as follows:

[0093] Startup phase: The user activates the vacuum function. The control board receives the start command, the car washer activates the vacuum module, and the normally open, electrically sealed drain valve is powered on and closed. The car washer's built-in vacuum cleaner 320 begins operation, sequentially generating negative pressure through the first connection port 313 on the top of the external classification drain tank, the perforated plate 317, and the second connection port 315 on the side wall of the tank. This creates a suction nozzle connected to the external vacuum duct of the vacuum module, which then draws in dust-laden air from the vehicle.

[0094] Filtration and classification stage: The dust-laden airflow passes through the holes on the perforated plate 317. Large garbage is intercepted on the perforated plate 317 due to its size, and a small number of small particles and dust continue to move forward with the airflow. Water is guided to the guide channel on the side wall of the box due to gravity and the curling design on the perforated plate 317.

[0095] Collection and drainage stage: Large garbage bounces off the perforated plate 317 and falls into the garbage bin 319 located on the boss at the bottom of the box. Water is guided to the bottom of the box through the diversion channel.

[0096] Drainage and recovery phase: After vacuuming is complete, the control board activates the electrically controlled sealed drain valve at the bottom of the vacuum chamber according to the end command. The normally open electrically controlled sealed drain valve opens upon power failure, allowing accumulated water at the bottom of the vacuum chamber to drain through drain port 316, thereby clearing excess water from the chamber and preventing large trash in trash can 319 from soaking for extended periods. Prolonged soaking of trash cans can have several adverse consequences, including the following:

[0097] Environmental pollution: Soaked garbage will release harmful substances, such as heavy metals and organic pollutants, which will seep into groundwater or flow into rivers and lakes, causing damage to the aquatic ecosystem; harmful components may seep into the soil, change the soil structure, reduce soil fertility, and affect plant growth.

[0098] Odor: When garbage soaks for extended periods, it ferments and produces a foul odor, impacting the quality of life of surrounding residents and potentially causing public health problems. Soaking garbage for extended periods of time makes it softer and wetter, increasing its weight and making its collection, transportation, and disposal more difficult.

[0099] Safety hazards: Prolonged soaking of garbage may produce flammable gases such as methane, posing a risk of explosion and fire.

[0100] Therefore, large garbage in the garbage bin 319 is prevented from soaking for a long time, which is beneficial to reducing the negative impact on the environment and public health. After drainage is completed, the drain port is still in an open state. When not vacuuming, the box body can also be connected to the outside through the second connection port 315 on the side wall of the box body and the external vacuum pipe, which is beneficial to the continued dissipation of moisture in the box body.

[0101] Shutdown and standby stage: The control mainboard turns off the built-in vacuum cleaner 320, and the vacuum module enters the standby state, waiting for the next use instruction.

[0102] Through the above-described working process, the present invention achieves the filtration of dust-laden airflow, the classified collection of large waste, and the effective removal of moisture, while ensuring the reusability and environmental hygiene of the device. Furthermore, it effectively improves the existing car wash machine built-in vacuum cleaner 320, which is prone to clogging, difficult to clean, and difficult to monitor, reducing the frequency of waste removal and the difficulty of operation. It also significantly reduces the damage and maintenance frequency of the more expensive car wash machine built-in vacuum cleaner 320.

[0103] The improved and upgraded Internet intelligent self-service car washing machine of the present invention further includes a water cleaning module 400:

[0104] The clean water module 400 includes a clean water tank 401 and a second high and low liquid level meter 402 and a float valve disposed in the clean water tank 401. The specific structure is as follows:

[0105] The clean water tank 401 is made of metal. The second high and low liquid level gauge 402 is fixed to the clean water tank 401 via a fixing device on the tank wall. The high-level float of the second high and low liquid level gauge 402 is set at the warning liquid level of the clean water tank 401. A float valve is installed on the clean water tank inlet pipe (the installation method and principle of the float valve are well-known in the prior art and will not be repeated 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 clean water tank inlet pipe. When the water level rises to the set maximum liquid level, the float valve closes, stopping water injection, ensuring that the clean water tank 401 always maintains an appropriate water level, providing a stable water source for the car washing machine.

[0106] The maximum liquid level is below the warning level. Under normal operation, the water level will not reach the warning level. If it does, it indicates a malfunction in the clean water tank 401. The second high-low level gauge 402 alerts the control board, which shuts off the solenoid valve on the clean water tank inlet pipe, stopping water inflow and notifying management for inspection and repair. An overflow port is provided on the tank sidewall at the height of the high-level float. The overflow port connects to an outflow pipe opening outside the car wash machine to prevent abnormal liquid overflow and damage to the self-service car wash machine's internal components. At the same time, the low-level float of the second high-low level gauge 402 is at the lowest liquid level in the clean water tank 401. Under normal operation, the water level will not reach the lowest level. If it does, it indicates a malfunction in the clean water tank module. The second high-low level gauge 402 alerts the control board, which shuts off the solenoid valve on the clean water tank inlet pipe, stopping water inflow and notifying management for inspection and repair.

[0107] The lower portion of the clean water tank 401 is equipped with an outlet, which is connected to a clean water output pipe. This pipe is then connected to a diaphragm pump, a flowmeter, and then to the second end of a liquid inlet tee. The third end of the tee is connected to the booster motor pump 510. A pressure relief valve is also connected to the clean water output pipe, which is connected to a drain pipe extending from the exterior of the self-service car wash machine. The flowmeter on the clean water output pipe protects the booster motor pump 510. When the water flow rate falls below a set value, the motor is automatically shut down to prevent dry wear of the booster motor pump 510's plunger and seal assembly.

[0108] The additional clean water tank 401 can achieve the following three technical effects:

[0109] 1. Existing self-service car washes without a clean water tank have strict requirements for the water pressure entering the booster pump, which must be maintained between 1.4 and 2 kg. Failure to meet this standard will affect the car wash effect or damage the performance of the car wash equipment. After installing a clean water tank, as long as there is tap water in the waterway, the diaphragm pump can be used to supply water for car washes regardless of whether the water pressure is high or low. It has a wider range of water adaptability requirements.

[0110] 2. When a car washer is running for a long time, its internal components such as the booster motor pump and vacuum cleaner will generate a lot of heat. If the temperature is too high, it will not only affect the operating efficiency of the equipment, but may also shorten the service life of the equipment. However, adding a metal clean water tank can help absorb and dissipate heat through heat exchange with tap water when the temperature is high. This can significantly reduce the temperature inside the equipment and reduce problems such as lubrication failure and insulation damage caused by overheating, thereby extending the service life of the equipment, avoiding performance degradation caused by high temperature, and ensuring the smoothness and efficiency of the car washing process.

[0111] 3. The clean water after absorbing heat and the foam formed by mixing with the heated clean water can significantly enhance the cleaning ability, because warm water can dissolve grease and stains more effectively. At the same time, warm water car washing is gentler on the car paint surface, making the cleaning process more thorough, improving cleaning efficiency, and achieving better car washing results, which can significantly improve customer satisfaction.

[0112] As an embodiment of the present invention, the clean water tank can be further intelligently temperature-controlled, that is, a heater and a temperature sensor are set in the clean water tank, and the temperature of the heated water is monitored in real time by the temperature sensor, and the heating power is automatically adjusted or heating is stopped as needed. Through intelligent management, it is ensured that the car washing machine can efficiently utilize thermal energy while avoiding energy waste, and accurately controlling the water temperature during the car washing process; at the same time, it is also beneficial in winter when the temperature is too low or the car washing machine has not been operating for a long time. The heater can appropriately increase the water temperature, improve the cleaning efficiency, and prevent the water pipes from freezing and cracking.

[0113] 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, the clean water is sucked into the booster motor pump 510 and output through the clean water gun pipeline.

[0114] The improvement and upgrade of the Internet intelligent self-service car washing machine of the present invention also includes a module 500 for preventing wrong use of a gun:

[0115] The anti-misuse gun module includes a booster motor pump 510, a high-pressure tee, a clean water output pipe, and a foam output pipe. The specific structure is as follows:

[0116] The inlet of the high-pressure tee is connected to the outlet of the booster motor pump 510. The first outlet of the high-pressure tee is connected to the clean water output pipe, and the second outlet of the high-pressure tee is connected to the foam output pipe. The clean water output pipe is connected between the first outlet of the high-pressure tee and the clean water gun, and is equipped with a clean water flow meter. The foam output pipe is connected between the second outlet of the high-pressure tee and the foam gun, and is equipped with a foam flow meter. The control board receives signals from the clean water flow meter and the foam flow meter and controls the start and stop of the motor. Pressure sensors are installed on the handles of the clean water gun and the foam gun.

[0117] When the user actually uses it, there are two protection measures to prevent the user from picking up the wrong gun:

[0118] The first level: When the user presses the water-cleaning button, the control board obtains the pressure sensor on the handle of the gun held by the user to determine whether the user is holding the right gun. If the result is that the user is holding the wrong gun, the voice prompt module and the display screen on the car washing machine will remind the user, "You are holding the wrong gun, please hold the water-cleaning gun."

[0119] The second level: When the user presses the clean water button, the motor starts and the high-pressure pipeline builds pressure. If the user pulls the trigger on the clean water gun, the clean water flow meter is triggered and the device is activated normally. If the user fails to hear the change in time for some reason (such as wearing headphones, etc.) and continues to pull the trigger on the foam gun by mistake, the foam flow meter on the foam output pipe 504 is triggered, and the control board immediately cuts off the power to the motor to prevent the foam high-pressure pipe from mixing with clean water, and reminds the user again through the voice prompt module and the display screen on the car washing machine: "You have taken the wrong gun, please take the clean water gun." After the user correctly pulls the trigger on the clean water gun, the clean water flow meter on the clean water output pipe 503 is triggered and the motor starts normally.

[0120] Similarly, when the user presses the foam button, the first control board detects the pressure sensor on the gun handle, determines if the user is holding the gun correctly, and issues a warning. This triggers the second layer of protection: the motor starts, and pressure builds in the high-pressure line. If the user triggers the foam gun, the foam flow meter triggers, and the device operates normally. If the user mistakenly triggers the clean water gun, the clean water flow meter triggers, and the control board immediately disconnects power to the motor to prevent the clean water from mixing with foam in the high-pressure line. The control board then warns the user through the voice prompt module and the car washer's display: "You are holding the wrong gun. Please use the foam gun." If the user correctly triggers the foam gun, the foam flow meter triggers, and the motor starts normally.

[0121] The system uses data feedback from the clean water flow meter and foam flow meter, combined with an Internet intelligent control system, to achieve real-time monitoring and intelligent management of the car washing process, preventing users from confusing or misusing the clean water gun and foam gun during use, thereby improving user experience, car washing efficiency and system safety.

[0122] As another aspect of the implementation of the present invention, by installing a camera module on the gun, cooperating with the control mainboard to intelligently evaluate the distance between the muzzle and the sprayed vehicle surface, when the spraying distance is too close, the water pressure of the water gun is intelligently reduced to reduce the risk of paint scratches (it has been verified that when the water pressure is ≥8MPa and the spraying distance is ≤15cm, the risk of paint scratches is increased by 300%).

[0123] The improved and upgraded Internet intelligent self-service car washing machine provided by the present invention can effectively improve the various performance aspects of the self-service car washing machine and enhance the customer satisfaction of car washing.

[0124] Applied to the above-mentioned improved and upgraded Internet intelligent self-service car washing machine, the present invention provides an improved and upgraded Internet intelligent self-service car washing machine operation control method, which includes the following steps:

[0125] Step S1: Executing the self-service car wash and automatic water replenishment steps with clean water through the anti-wrong-use gun module and the clean water module, including:

[0126] S11, the user starts the water purification function;

[0127] S12. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes:

[0128] S121, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the water-clearing key; if so, executing S13; otherwise, reminding the user to change guns;

[0129] The reminder includes voice reminder and visual reminder. One is through the voice prompt module, and the other is through the display screen on the car wash machine to remind the user, "You have the wrong gun, please use the water gun."

[0130] S122. Obtain signals from the clean water flow meter and the foam flow meter to determine whether the user has changed the gun. If so, execute S13. Otherwise, the booster motor pump stops and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S13.

[0131] S13, use the water washing function;

[0132] Using the clean water car washing function means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to close and the diaphragm pump on the clean water output pipe to open, and the clean water is sucked into the booster motor pump and then output through the clean water gun pipeline to wash the car with clean water.

[0133] S14, adding clean water to the clean water tank through the clean water module;

[0134] During the use of clean water, when the water level in the clean water tank drops, the float valve in the clean water tank opens, and clean water is injected into the clean water tank through the clean water tank inlet pipe. When the water level rises to the set maximum liquid level, the float valve closes and stops injecting water, ensuring that the clean water tank always maintains an appropriate water level and provides a stable water source for the car washing machine.

[0135] Step S2, performing foaming, decontamination self-service car washing and automatic fluid replenishment steps through the anti-wrong-use gun module and the foam module, including:

[0136] S21, the user starts the bubble function;

[0137] S22. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes:

[0138] S221, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the foam key. If so, execute S13; otherwise, remind the user to change guns;

[0139] The reminder includes voice reminder and visual reminder. One is through the voice prompt module, and the other is through the display screen on the car wash machine to remind the user, "You have the wrong gun, please use the foam gun."

[0140] S222. Obtain signals from the clean water flow meter and the foam flow meter to determine whether the user has changed the gun. If so, execute S23. Otherwise, the booster motor pump stops and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S23.

[0141] S23, use the foam car wash function;

[0142] Using the foam car washing function means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to open and the diaphragm pump on the clean water output pipe to open, and the clean water and foam mixture are sucked into the booster motor pump together, and then output through the foam gun pipeline for foam car washing.

[0143] S24, adding a foam mixing step to the foam mixing box through the foam module;

[0144] S241, determining whether the liquid level of the foam mixture in the foam mixing tank has reached a low liquid level, if yes, executing S242, otherwise continuing the determination;

[0145] S242, controlling the electric underwater sealing valve 214 to close, so that the foam mixing chamber and the foam storage chamber become two separated chambers;

[0146] S243, adding and mixing clean water and foam stock solution into the foam mixing chamber in intervals and in batches, including:

[0147] Foam stock solution addition: The foam diaphragm pump extracts the stock solution from the foam stock solution barrel according to the set time and outputs it to the foam mixing chamber through the porous foam stock solution discharge long tube. The foam diaphragm pump calculates the extraction time t and sends it to the control mainboard;

[0148] Adding clean water: Turn off the foam diaphragm pump, open the water supply solenoid valve, and inject clean water into the bottom of the foam mixing chamber through the porous drainage tube. The amount of water injected is the ratio of the amount of extracted original liquid calculated by the control mainboard according to the extraction time t to the required foam mixture.

[0149] S244: Determine whether the total amount of liquid required by the foam mixing chamber has been reached. If so, open the electric underwater sealing valve to allow the foam mixture to flow into the foam storage chamber for the user to use for car washing. Otherwise, continue adding and mixing.

[0150] Step S3: performing a self-service car wash vacuuming step by using a vacuuming module, including:

[0151] S31, the user starts the vacuuming function;

[0152] S32, the electrically controlled sealed drain valve is powered on and closed, and the car washer's built-in vacuum cleaner is started;

[0153] S33, sucking the dust-laden airflow from the vehicle through a suction nozzle, and filtering and classifying the dust-laden airflow in an external classification drain box;

[0154] S34, the control mainboard activates the electronically controlled sealed drain valve to open after power is turned off according to the end instruction, and removes excess water in the box;

[0155] S35, the control main board turns off the built-in vacuum cleaner, and the vacuuming ends.

[0156] Furthermore, during the car washing process, the functions of water and foam can be used repeatedly according to user needs, and are not limited to the number and sequence of the above steps.

[0157] Other steps required for self-service car washing, such as executing the hand washing function, displaying and charging, adopt existing general steps, which are existing technologies and will not be repeated here.

[0158] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0159] The present invention and its embodiments are described above. This description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An improved and upgraded Internet intelligent self-service car washing machine operation control method, characterized in that: It includes: The self-service car wash and automatic water replenishment steps are performed through the anti-wrong-use gun module and the clean water module; The anti-misuse gun module and foam module are used to perform foaming and decontamination self-service car washing and automatic fluid replenishment steps; The self-service car wash vacuuming step is performed through the vacuuming module.

2. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 1 is characterized in that: The steps of performing self-service car washing and automatic water replenishment with clean water by using the anti-wrong-use gun module and the clean water module include: S11, the user starts the water purification function; S12. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes: S121, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the water-clearing key; if so, executing S13; otherwise, reminding the user to change guns; S122, obtaining signals from the clean water flow meter and the foam flow meter to determine whether the user has changed the gun. If so, execute S13; otherwise, the booster motor pump stops working and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S13; S13, use the clean water car wash function; S14: replenishing clean water into the clean water tank through the clean water module.

3. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 2 is characterized in that: Reminders include voice reminders and visual reminders.

4. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 3 is characterized in that: The clean water car washing function in S13 means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to close and the diaphragm pump on the clean water output pipe to open. Clean water is sucked into the booster motor pump and then output through the clean water gun pipeline for clean water washing.

5. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 4 is characterized in that: S14, the step of replenishing clean water into the clean water tank through the clean water module, comprising: When using clean water, when the water level in the clean water tank drops, the float valve in the clean water tank opens, and clean water is injected into the clean water tank through the clean water tank inlet pipe. When the water level rises to the set maximum liquid level, the float valve closes and stops injecting water.

6. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 1 is characterized in that: The steps of performing foaming, decontamination self-service car washing and automatic fluid replenishment by using the anti-wrong-use gun module and the foam module include: S21, the user starts the bubble function; S22. Determining whether the user has used the wrong gun by using the wrong gun prevention module includes: S221, obtaining a pressure sensor signal on the grip of the gun held by the user, and determining whether the pressure sensor signal matches the foam key. If so, execute S13; otherwise, remind the user to change guns; S222, obtaining signals from the clean water flow meter and the foam flow meter to determine whether the user has changed the gun. If so, execute S23; otherwise, the booster motor pump stops and continues to remind the user to change the gun until the user uses the gun correctly, and then execute S23; S23, use the foam car wash function; S24, adding the foam mixing step to the foam mixing box through the foam module.

7. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 6 is characterized in that: The use of the foam car washing function in S23 means that the control main board controls the foam solenoid valve on the foam mixture outlet pipe to open and the diaphragm pump on the clean water output pipe to open, and the clean water and foam mixture are sucked into the booster motor pump together and then output through the foam gun pipeline for foam car washing.

8. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 7 is characterized in that: S24, the step of adding foam mixing night to the foam mixing box through the foam module, comprising: S241, determining whether the liquid level of the foam mixture in the foam mixing tank has reached a low liquid level, if yes, executing S242, otherwise continuing the determination; S242, controlling the electric underwater sealing valve to close, so that the foam mixing chamber and the foam storage chamber become two separated chambers; S243, adding and mixing clean water and foam stock solution into the foam mixing chamber in intervals and in batches, including: Foam stock solution addition: The foam diaphragm pump extracts the stock solution from the foam stock solution barrel according to the set time and outputs it to the foam mixing chamber through the porous foam stock solution discharge long tube. The foam diaphragm pump calculates the extraction time t and sends it to the control mainboard; Adding clean water: Turn off the foam diaphragm pump, open the water supply solenoid valve, and inject clean water into the bottom of the foam mixing chamber through the porous drainage tube. The amount of water to be injected is calculated by the ratio of the amount of extracted raw liquid calculated by the control mainboard according to the extraction time t to the required foam mixture; S244: Determine whether the total amount of liquid required by the foam mixing chamber has been reached. If so, open the electric underwater sealing valve to allow the foam mixture to flow into the foam storage chamber for the user to use for car washing. Otherwise, continue adding and mixing.

9. The improved and upgraded Internet intelligent self-service car washing machine operation control method according to claim 1 is characterized in that: The self-service car wash vacuuming step is performed by the vacuuming module, including: S31, the user starts the vacuuming function; S32, the electrically controlled sealed drain valve is powered on and closed, and the car washer's built-in vacuum cleaner is started; S33, sucking the dust-laden airflow from the vehicle through a suction nozzle, and filtering and classifying the dust-laden airflow in an external classification drain box; S34, the control main board controls the electronically controlled sealed drain valve to open and remove excess water from the box according to the vacuuming end instruction; S35, the control main board turns off the built-in vacuum cleaner, and the vacuuming ends.

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