A method for controlling multiple washes in a dishwasher and the dishwasher

Abstract

This invention belongs to the technical field of intelligent household appliances. It discloses a control method for multiple washes in a dishwasher and the dishwasher itself. The main control circuit box controls multiple water circulation valves to inject clean water into multiple water tanks, and multiple water level sensors determine the water level. Based on gravity, cleaning agent flows through two control valves into the first and second water tanks respectively. A water pump draws water from different tanks through different water pipes and sprays it through first and second spray pipes to clean the dishes. The cleaned water is filtered and guided into a storage tank or out of the dishwasher. This process is repeated for continuous cleaning. This invention provides a cleaning method that uses less water for more washes and a novel water circulation system, allowing for individual cleaning of dishes, resulting in better cleaning, thorough cleaning, water conservation, and an improved user experience.

Description

Technical Field

[0001] This invention belongs to the technical field of household intelligent electrical appliances, and particularly relates to a control method for multiple cleaning cycles in a dishwasher and the dishwasher itself. Background Technology

[0002] Currently, with the development of science and technology and the improvement of living standards, people have increasingly higher requirements for quality of life, leading to the emergence of many high-quality, high-performance, and intelligent electrical appliances. Dishwashers, as a type of household and commercial appliance, can save time and manpower, significantly improving quality of life and work efficiency.

[0003] Currently, dishwashers on the market first wash dishes with water containing detergent and then drain them, then rinse them with clean water and drain them again. This method only washes once, which is too infrequent and can easily result in dishes not being cleaned properly and a significant waste of water.

[0004] Patent No. 201811325194.7 discloses a dishwasher with a water circulation system. This dishwasher has a water circulation function, using a spray mechanism to supply water to wash the dishes. The water used to wash the dishes flows into a water tank, and a water pump repeatedly supplies water from the tank into the circulation mechanism, achieving the effect of repeated rinsing of the dishes. However, if the dishes to be washed have too much oil or stains, the water from the first rinse will become very cloudy, affecting the effectiveness of the detergent, and the dishes may not be thoroughly cleaned during subsequent rinses.

[0005] Patent No. 201611073306.5 discloses a water-saving and high-efficiency dishwasher. This dishwasher also has a water circulation function. It washes the dishes through the nozzles, and the water used to wash the dishes is filtered and flows into the water storage tank for reuse. It has a similar problem to patent No. 201811325194.7. If a thorough cleaning is required, more detergent needs to be added, which will cause unnecessary waste.

[0006] Based on the above analysis, the problems and shortcomings of the existing technology are as follows:

[0007] Dishwashers in the current technology do not clean dishes completely during the washing process.

[0008] Dishwashers with existing technology tend to waste water resources when they are in operation. Summary of the Invention

[0009] To address the problems existing in the prior art, this invention provides a method for controlling multiple washes in a dishwasher and a dishwasher in general.

[0010] This invention is implemented as follows: a control method for multiple wash cycles in a dishwasher, the control method for multiple wash cycles in a dishwasher includes:

[0011] Step 1: Control multiple water circulation outflow control valves through the main control circuit box to inject clean water into multiple water tanks. Determine that the water supply equipment water inflow control valve is ON, slide rail mark position 1, slide rail moves the first spray pipe and the second spray pipe to above the first tableware, and determines the water level through multiple water level sensors.

[0012] When the water supply inflow control valve of the water supply equipment is OFF, the slide rail mark is at position 0, and the slide rail enters the locked state.

[0013] Step two: According to gravity, the cleaning agent flows into the first water tank and the second water tank respectively through the first cleaning agent flow control valve and the second cleaning agent flow control valve.

[0014] Step 3: The water pump draws water from different water tanks through different water pipes, sprays it out through the first spray pipe and the second spray pipe to clean the tableware, filters the cleaned water and guides the filtered water into the storage tank or out of the dishwasher.

[0015] Step four, repeat step three to cycle through the cleaning process. Compare the counter value with the number of dish trays. When they are equal, set the slide rail marker to position 1, move the first and second spray pipes above the first dish tray, and then set the slide rail marker to position 0, locking the slide rail.

[0016] Furthermore, step one specifically includes: the dishwasher starts working, all internal valves are closed by default, the first and second spray pipes are at the edge of the slide rail, the main control device controls the opening of the water supply equipment's water inflow control valve, the opening of the first, second, third, and fourth water circulation outflow control valves, the water supply equipment injects clean water into the first, second, third, and fourth water tanks through the water supply pipes, it is determined that the water supply equipment's water inflow control valve is ON, the slide rail mark is at position 1, the slide rail moves the first and second spray pipes to above the first tableware, the water level is determined by the first, second, third, and fourth water level sensors, the first, second, third, and fourth water tanks, the water tanks are filled, and the water supply equipment's water inflow control valve is closed;

[0017] When the water supply control valve of the water supply equipment is set to OFF, the slide rail mark is at position 0, and slide rail 3 is locked.

[0018] Furthermore, step two specifically includes:

[0019] The first and second cleaning agent inflow control valves are opened, and the cleaning agent flows into the first and second water tanks according to gravity. After the timed period, the first and second cleaning agent inflow control valves are closed.

[0020] Furthermore, the opening time of the first cleaning agent inflow control valve is three seconds longer than that of the second cleaning agent inflow control valve.

[0021] Furthermore, step three specifically includes:

[0022] (1) Open the control valve for the outflow of the second water storage device and the control valve for the inflow of the third water circulation device; open the control valve for the outflow of the first water circulation device.

[0023] The water pump draws water from the first water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to clean the tableware. The cleaned water is first filtered by the filter screen, and then guided by the water guide plate with a certain angle, and then flows into the water storage tank through the third water circulation control valve.

[0024] (2) The wastewater from the first cleaning is discharged through the second water storage device outflow control valve into the drainage pipe, and then the second water storage device outflow control valve and the first water circulation outflow control valve are closed.

[0025] (3) Then open the first water circulation inflow control valve, the first water storage device outflow control valve, and the second water circulation outflow control valve. The water pump draws water from the second water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to clean the tableware again. The cleaned water is first filtered through the filter screen and then guided by the water guide plate before flowing into the water storage tank through the third water circulation inflow control valve.

[0026] (4) The water flows out through the first water storage device control valve and then into the first water tank through the third water guide pipe for storage and standby. When the fourth water level sensor detects that the water level is no longer changing, the first water circulation inflow control valve and the second water circulation outflow control valve are closed. Then the second water circulation inflow control valve and the third water circulation outflow control valve are opened.

[0027] (5) The water pump draws water from the third water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to rinse the tableware, wash away the residue and foam on the tableware. The rinsed water is first filtered by the filter screen, then guided by the water guide plate, and then flows into the water storage tank through the third water circulation control valve. It then flows out through the first water storage device control valve and into the second water tank 12 through the second water guide pipe for storage and backup.

[0028] (6) When the third water level sensor detects that the water level is no longer changing, the second water circulation inflow control valve and the third water circulation outflow control valve are closed; then the third water circulation inflow control valve and the fourth water circulation outflow control valve are opened.

[0029] (7) The water pump draws water from the fourth water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to rinse the tableware again. The rinsed water is first filtered by the filter screen, then guided by the water guide plate, and then flows into the water storage tank through the third water circulation control valve.

[0030] (8) The water flows out through the first water storage device through the first water pipe into the third water tank 13 for storage and standby. When the second water level sensor detects that the water level is no longer changing, the third water circulation inflow control valve and the fourth water circulation outflow control valve are closed. Then, the water supply inflow control valve of the water supply equipment is opened, and the water supply equipment injects clean water into the fourth water tank through the water supply pipe. It is determined that the water supply inflow control valve of the water supply equipment is ON, the slide rail mark position is 1, the slide rail moves the first spray pipe and the second spray pipe to the top of the second tableware. After the first water level sensor detects that the water is full, the water supply inflow control valve of the water supply equipment is closed. It is determined that the water supply inflow control valve of the water supply equipment is OFF, the slide rail mark position is 0, the slide rail enters the locked state, and the counter is incremented by 1.

[0031] Another object of the present invention is to provide a dishwasher that operates the control method, the dishwasher comprising, from top to bottom:

[0032] The washing layer is used to store tableware that needs to be washed.

[0033] The placement layer includes a main control circuit box, a water pump placement box, a water storage tank, and multiple water guide pipes connecting the water pump, the water storage tank, and multiple water tanks. Water circulation is performed through multiple valves between the multiple water guide pipes and the water storage tank and multiple water tanks.

[0034] The water storage layer includes a first water tank, a second water tank, a third water tank, and a fourth water tank. The first and second water tanks are used to add different amounts of detergent for cleaning tableware, while the third and fourth water tanks are used to add clean water for rinsing and cleaning after cleaning.

[0035] Furthermore, the placement layer includes a main control circuit box, a water pump placement box, a water storage tank, and multiple water guide pipes connecting the water pump, the water storage tank, and multiple water tanks, as well as multiple valves, the number of which can be adjusted according to the application scenario.

[0036] The number of water storage layers is adjusted according to the number of application scenarios.

[0037] Another object of the present invention is to provide a master control device, characterized in that the master control device includes a master control circuit box, the master control circuit box includes a memory and a processor, the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the control method.

[0038] Another object of the present invention is to provide a computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the control method.

[0039] Another objective of this invention is to provide a dishwashing device for household and public catering industries that performs the control method using a low-water, high-wash cleaning method.

[0040] Combining all the above technical solutions, the advantages and positive effects of this invention are as follows:

[0041] This invention controls multiple water circulation outflow control valves through the main control circuit box to inject clean water into multiple water tanks. When the water supply equipment's water inflow control valve is ON, the slide rail mark position 1, and the slide rail moves the first spray pipe and the second spray pipe above the first tableware. The water level is determined by multiple water level sensors.

[0042] The water pump of this invention draws water from different water tanks through different water pipes, and sprays it out through the first spray pipe and the second spray pipe to clean the tableware. The cleaned water is filtered and guided into the water storage tank or out of the dishwasher. The operation is repeated to clean in a cycle. The counter value is compared with the number of tableware tanks. When they are equal, the slide rail mark is set to 1, the first spray pipe and the second spray pipe are moved to the top of the first tableware tank, and then the slide rail mark is set to 0, and the slide rail enters the locked state.

[0043] Through the above method, the present invention provides a cleaning method that uses less water and more washing, as well as a brand-new water circulation system, to clean tableware one by one, resulting in better cleaning effect, thorough cleaning of tableware, saving water resources, and improving user experience. Attached Figure Description

[0044] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a flowchart of the control method for multiple cleaning cycles of a dishwasher provided in an embodiment of the present invention.

[0046] Figure 2This is a schematic diagram of the control method for multiple cleaning cycles in a dishwasher provided in an embodiment of the present invention.

[0047] Figure 3 This is a schematic diagram of a dishwasher provided in an embodiment of the present invention.

[0048] Figure 4 This is a top view of the placement layer provided in an embodiment of the present invention.

[0049] Figure 5 This is a three-dimensional cross-sectional view of the water storage layer of the dishwasher provided in an embodiment of the present invention.

[0050] Figure 6 This is a top view of the water storage layer of the dishwasher provided in an embodiment of the present invention.

[0051] Figures 3-6 In the middle section: 1. First spray pipe; 2. Second spray pipe; 3. Slide rail; 4. Tableware baffle; 5. Water guide plate; 6. Water pump placement box; 7. Cleaning agent storage box; 8. Water storage tank; 9. Main control circuit box; 10. Drainage pipe; 11. First water tank; 12. Second water tank; 13. Third water tank; 14. Fourth water tank; 15. First water guide pipe; 16. Second water guide pipe; 17. Third water guide pipe; 18. First cleaning agent inflow control valve; 19. Second cleaning agent inflow control valve; 20. First water circulation inflow control valve; 21. Second water circulation inflow control valve; 22. Second... 23. Water circulation inflow control valve; 24. First water storage device outflow control valve; 25. Second water storage device outflow control valve; 26. Third water circulation inflow control valve; 27. First water circulation outflow control valve; 28. Second water circulation outflow control valve; 29. ​​Third water circulation outflow control valve; 30. Fourth water circulation outflow control valve; 31. Fourth water guide pipe; 32. Water supply pipe; 33. Water supply equipment water supply inflow control valve; 34. Filter screen; 35. First water level sensor; 36. Second water level sensor; 37. Third water level sensor; 38. Fourth water level sensor. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0053] To address the problems existing in the prior art, the present invention provides a control method for multiple cleaning cycles in a dishwasher and a dishwasher in general. The present invention will be described in detail below with reference to the accompanying drawings.

[0054] Figure 1 The dishwasher multiple cleaning control method provided in this embodiment of the invention includes:

[0055] S101, the main control circuit box controls multiple water circulation outflow control valves to inject clean water into multiple water tanks. When the water supply equipment water inflow control valve is ON, the slide rail mark position is 1, and the slide rail moves the first spray pipe and the second spray pipe above the first tableware. The water level is determined by multiple water level sensors. When the water supply equipment water inflow control valve is OFF, the slide rail mark position is 0, and the slide rail enters the locked state.

[0056] S102, according to gravity, the cleaning agent flows into the first water tank and the second water tank through the first cleaning agent inflow control valve and the second cleaning agent inflow control valve, respectively.

[0057] S103, the water pump draws water from different water tanks through different water pipes, sprays it out through the first spray pipe and the second spray pipe to clean the tableware, filters the cleaned water and guides the filtered water into the water storage tank or out of the dishwasher.

[0058] S104, repeat step S103 to perform cyclic cleaning, compare the counter value with the number of dish trays, when they are equal, set the slide rail mark to 1, move the first spray pipe and the second spray pipe above the first dish tray, and then set the slide rail mark to 0, and the slide rail enters the locked state.

[0059] Figure 2 This is a schematic diagram of the control method for multiple cleaning cycles in a dishwasher provided in an embodiment of the present invention.

[0060] Depend on Figures 3-6 As shown, the present invention divides the entire dishwasher into three layers from top to bottom. The first layer is the cleaning layer, which is used to store the tableware to be cleaned.

[0061] The second layer is the placement layer, which includes the main control circuit box 9, the water pump placement box 6, the water storage tank 8, and multiple water guide pipes connecting the water pump, the water storage tank, and multiple water tanks. Water circulation is achieved through multiple valves between the multiple water guide pipes and the water storage tank 8 and multiple water tanks.

[0062] The third layer is a water storage layer, which uses four small water tanks (first water tank 11, second water tank 12, third water tank 13; fourth water tank 14) instead of the traditional single water tank. Different amounts of detergent are added to the first water tank 11 and the second water tank 12 for cleaning tableware, while clean water is added to the third water tank 13 and the fourth water tank 14 for rinsing and cleaning after cleaning.

[0063] The following section discusses specific connection relationships ( Figures 3-6 The invention will be further described below, including its working principle.

[0064] The dishwasher of this invention reuses water during the washing process by using less water for more washes, resulting in better cleaning and greater water conservation.

[0065] After the dishwasher starts working, all internal valves are closed by default. The first spray pipe 1 and the second spray pipe 2 are at the edge of the slide rail. The main control circuit controls the opening of the water supply equipment's inflow control valve 32, and the opening of the first water circulation outflow control valve 26, the second water circulation outflow control valve 27, the third water circulation outflow control valve 28, and the fourth water circulation outflow control valve 29. The water supply equipment injects water into the four water tanks (first water tank 11, second water tank 12, third water tank 13; fourth water tank 14) through the water supply pipe 31. When the water tank is filled, valve 32 is set to ON, slide rail mark position 1, slide rail 3 moves the first spray pipe 1 and the second spray pipe 2 to above the first tableware. The water level is determined by the first water level sensor 34, the second water level sensor 35, the third water level sensor 36, and the fourth water level sensor 37. After the water tank is full, the first water circulation outflow control valve 26, the second water circulation outflow control valve 27, the third water circulation outflow control valve 28, the fourth water circulation outflow control valve 29, and the water supply equipment water inflow control valve 32 is closed.

[0066] When the water supply control valve 32 of the water supply equipment is OFF, the slide rail mark is at position 0, and the slide rail 3 is locked.

[0067] Open the first cleaning agent inflow control valve 18 and the second cleaning agent inflow control valve 19. According to gravity, the cleaning agent will flow into the first water tank 11 and the second water tank 12. After the timed period, close the first cleaning agent inflow control valve 18 and the second cleaning agent inflow control valve 19.

[0068] The water in the first water tank 11 containing detergent is the water pumped for the first cleaning. Since the dishes are heavily soiled during the first cleaning, the control valve 18 for the first detergent inflow opens three seconds longer than the control valve 19 for the second detergent inflow.

[0069] Start cleaning by opening the second water storage device outflow control valve 24 and the third water circulation inflow control valve 25; and the first water circulation outflow control valve 26.

[0070] The water pump draws water from the first water tank 11 through the fourth water guide pipe 30 and sprays it out through the first spray pipe 1 and the second spray pipe 2 to clean the tableware. The cleaned water is first filtered through the filter screen 33, and then guided by the water guide plate 5 with a certain angle of inclination, and then flows into the water storage tank 8 through the third water circulation control valve 25.

[0071] Then, the wastewater from the first cleaning is discharged through the second water storage device outflow control valve 24 into the drainage pipe 10. Immediately afterwards, the second water storage device outflow control valve 24 and the first water circulation outflow control valve 26 are closed.

[0072] Then, the first water circulation inflow control valve 20, the first water storage device outflow control valve 23, and the second water circulation outflow control valve 27 are opened. The water pump draws water from the second water tank 12 through the fourth water guide pipe 30 and sprays it out through the first spray pipe 1 and the second spray pipe 2 to clean the tableware again. The cleaned water is first filtered through the filter screen 33, and then guided by the water guide plate 5 before flowing into the water storage tank 8 through the third water circulation inflow control valve 25.

[0073] Then, the water flows out through the first water storage device control valve 23 and into the first water tank 11 via the third water guide pipe 17 for storage and backup. When the fourth water level sensor 37 detects that the water level is no longer changing, it immediately closes the first water circulation inflow control valve 20 and the second water circulation outflow control valve 27; then it opens the second water circulation inflow control valve 21 and the third water circulation outflow control valve 28.

[0074] The water pump draws water from the third water tank 13 through the fourth water guide pipe 30 and sprays it out through the first spray pipe 1 and the second spray pipe 2 to rinse the tableware, removing the residue and foam. The rinsed water is first filtered through the filter screen 33, then guided by the water guide plate 5, and flows into the water storage tank 8 through the third water circulation control valve 25. It then flows out through the first water storage device control valve 23 and into the second water tank 12 through the second water guide pipe 16 for storage and backup.

[0075] When the third water level sensor 36 detects that the water level is no longer changing, it immediately closes the second water circulation inflow control valve 21 and the third water circulation outflow control valve 28; then it opens the third water circulation inflow control valve 22 and the fourth water circulation outflow control valve 29.

[0076] The water pump draws water from the fourth water tank 14 through the fourth water guide pipe 30 and sprays it out through the first spray pipe 1 and the second spray pipe 2 to rinse the tableware again. The rinsed water is first filtered by the filter screen 33, and then guided by the water guide plate 5 before flowing into the water storage tank 8 through the third water circulation control valve 25.

[0077] The water then flows out through the first water storage device control valve 23 and into the third water tank 13 via the first water guide pipe 15 for storage and backup. When the second water level sensor 35 detects that the water level is no longer changing, it immediately closes the third water circulation inflow control valve 22 and the fourth water circulation outflow control valve 29. Then, it opens the water supply inflow control valve 32 of the water supply equipment, and the water supply equipment injects clean water into the fourth water tank 14 through the water supply pipe 31. When the water supply inflow control valve 32 of the water supply equipment is determined to be ON, the slide rail mark position 1 is set, and the slide rail 3 moves the first spray pipe 1 and the second spray pipe 2 to above the second tableware. After the first water level sensor 34 detects that the water is full, it closes the water supply inflow control valve 32 of the water supply equipment. When the water supply inflow control valve 32 of the water supply equipment is determined to be OFF, the slide rail mark position 0 is set, the slide rail 3 enters the locked state, and the counter increments by 1.

[0078] Repeat the above operation to start another cleaning cycle. Compare the counter value with the number of dish trays. When they are equal, set the slide rail mark to position 1, move the first spray pipe 1 and the second spray pipe 2 above the first dish tray, and then set the slide rail mark to position 0 and lock the slide rail 3.

[0079] This method of washing dishes with less water and more frequently can clean the dishes more thoroughly, while making full use of the water after rinsing the dishes, thus saving detergent and water resources.

[0080] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element 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 the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0081] It should be noted that embodiments of the present invention can be implemented in hardware, software, or a combination of both. The hardware portion can be implemented using dedicated logic; the software portion can be stored in memory and executed by a suitable instruction execution system, such as a microprocessor or dedicated-design hardware. Those skilled in the art will understand that the above-described devices and methods can be implemented using computer-executable instructions and / or included in processor control code, for example, such code provided on a carrier medium such as a disk, CD, or DVD-ROM, a programmable memory such as read-only memory (firmware), or a data carrier such as an optical or electronic signal carrier. The devices and modules of the present invention can be implemented by hardware circuitry such as very large-scale integrated circuits or gate arrays, semiconductors such as logic chips, transistors, or programmable hardware devices such as field-programmable gate arrays, programmable logic devices, etc., or by software executed by various types of processors, or by a combination of the above-described hardware circuitry and software, such as firmware.

[0082] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, and within the spirit and principles of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A method for controlling multiple washes in a dishwasher, characterized in that, The control method for multiple washes in the dishwasher includes: Step 1: Control multiple water circulation outflow control valves through the main control circuit box to inject clean water into multiple water tanks. Determine that the water supply equipment water inflow control valve is ON, slide rail mark position 1, slide rail moves the first spray pipe and the second spray pipe above the tableware, and determines the water level through multiple water level sensors. When the water supply equipment's water inflow control valve is OFF, the slide rail marker is at position 0, the slide rail enters the locked state, and the counter increments by 1. Step two: According to gravity, the cleaning agent flows into the first water tank and the second water tank respectively through the first cleaning agent flow control valve and the second cleaning agent flow control valve. Step 3: The water pump draws water from different water tanks through different water pipes, sprays it out through the first spray pipe and the second spray pipe to clean the tableware, filters the cleaned water and guides the filtered water into the storage tank or out of the dishwasher. Step 4: Repeat steps 1 to 3 to perform the cycle cleaning. Compare the counter value with the number of dish trays. When they are equal, set the slide rail marker to position 1, move the first spray pipe and the second spray pipe above the first dish tray, and then set the slide rail marker to position 0, locking the slide rail.

2. The control method for multiple washes in a dishwasher as described in claim 1, characterized in that, Step one specifically includes: the dishwasher starts working, all internal valves are closed by default, the first and second spray pipes are at the edge of the slide rail, the main control device controls the opening of the water supply inflow control valve, the opening of the first, second, third, and fourth water circulation outflow control valves, the water supply device fills the first, second, third, and fourth water tanks with clean water through the water supply pipes, the water supply inflow control valve is determined to be ON, the slide rail mark is set to 1, the slide rail moves the first and second spray pipes to above the first tableware, the water level is determined by the first, second, third, and fourth water level sensors, the first, second, third, and fourth water level sensors, the water level is adjusted, and the first, second, third, and fourth water tanks are filled. After the fourth water tank is full, the first, second, and third water tanks are closed, the water supply inflow control valves are closed, and the water supply device's water supply inflow control valve is closed. When the water supply control valve of the water supply equipment is set to OFF, the slide rail mark is at position 0, and slide rail 3 is locked.

3. The control method for multiple washes in a dishwasher as described in claim 1, characterized in that, Step two specifically includes: The first and second cleaning agent inflow control valves are opened, and the cleaning agent flows into the first and second water tanks according to gravity. After the timed period, the first and second cleaning agent inflow control valves are closed.

4. The control method for multiple washes in a dishwasher as described in claim 3, characterized in that, The opening time of the first cleaning agent inflow control valve is three seconds longer than that of the second cleaning agent inflow control valve.

5. The control method for multiple washes in a dishwasher as described in claim 3, characterized in that, Step three specifically includes: (1) Open the control valve for the outflow of the second water storage device and the control valve for the inflow of the third water circulation device; open the control valve for the outflow of the first water circulation device; The water pump draws water from the first water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to clean the tableware. The cleaned water is first filtered by the filter screen, and then guided by the water guide plate with a certain angle, and then flows into the water storage tank through the third water circulation control valve. (2) The wastewater from the first cleaning is discharged through the second water storage device outflow control valve into the drainage pipe, and then the second water storage device outflow control valve and the first water circulation outflow control valve are closed. (3) Then open the first water circulation inflow control valve, the first water storage device outflow control valve, and the second water circulation outflow control valve. The water pump draws water from the second water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to clean the tableware again. The cleaned water is first filtered through the filter screen and then guided by the water guide plate before flowing into the water storage tank through the third water circulation inflow control valve. (4) The water flows out through the first water storage device control valve and then into the first water tank through the third water guide pipe for storage and standby. When the fourth water level sensor detects that the water level is no longer changing, the first water circulation inflow control valve and the second water circulation outflow control valve are closed. Then the second water circulation inflow control valve and the third water circulation outflow control valve are opened. (5) The water pump draws water from the third water tank through the fourth water guide pipe and sprays it out through the first spray pipe and the second spray pipe to rinse the tableware, wash away the residue and foam on the tableware. The rinsed water is first filtered by the filter screen, then guided by the water guide plate, and then flows into the water storage tank through the third water circulation control valve. It then flows out through the first water storage device control valve and into the second water tank through the second water guide pipe for storage and backup. (6) When the third water level sensor detects that the water level is no longer changing, the second water circulation inflow control valve and the third water circulation outflow control valve are closed; then the third water circulation inflow control valve and the fourth water circulation outflow control valve are opened. (7) After the water pump draws water from the fourth water tank through the fourth water guide pipe, it sprays water through the first spray pipe and the second spray pipe to rinse the tableware again. The rinsed water is first filtered by the filter screen, then guided by the water guide plate, and then flows into the water storage tank through the third water circulation control valve. (8) The water flows out through the first water storage device control valve and into the third water tank through the first water guide pipe for storage and standby. When the second water level sensor detects that the water level is no longer changing, the valves for the third water circulation inflow control valve and the fourth water circulation outflow control valve are closed. Then the water supply equipment water supply inflow control valve is opened, and the water supply equipment injects clean water into the fourth water tank through the water supply pipe. It is determined that the water supply equipment water supply inflow control valve is ON, the slide rail mark position is 1, the slide rail moves the first spray pipe and the second spray pipe to the top of the second tableware. After the first water level sensor detects that the water is full, the water supply equipment water supply inflow control valve is closed. It is determined that the water supply equipment water supply inflow control valve is OFF, the slide rail mark position is 0, the slide rail enters the locked state, and the counter is incremented by 1.

6. A dishwasher operating the control method according to claims 1-5, characterized in that, The dishwasher, from top to bottom, includes: The washing layer is used to store tableware that needs to be washed. The placement layer includes a main control circuit box, a water pump placement box, a water storage tank, and multiple water guide pipes connecting the water pump, the water storage tank, and multiple water tanks. Water circulation is performed through multiple valves between the multiple water guide pipes and the water storage tank and multiple water tanks. The water storage layer includes a first water tank, a second water tank, a third water tank, and a fourth water tank. The first and second water tanks are used to add different amounts of detergent for cleaning tableware, while the third and fourth water tanks are used to add clean water for rinsing and cleaning after cleaning.

7. The dishwasher as described in claim 6, characterized in that, The placement layer includes a main control circuit box, a water pump placement box, a water storage tank, and multiple water guide pipes connecting the water pump, the water storage tank, and multiple water tanks, as well as multiple valves, the number of which can be adjusted according to the application scenario. The number of water storage layers is adjusted according to the application scenarios.

8. A master control device, characterized in that, The main control device includes a main control circuit box, which includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor performs the control method as described in claims 1 to 5.

9. A computer-readable storage medium storing a computer program, which, when executed by a processor, causes the processor to perform the control method as described in claims 1 to 5.

10. A dishwashing device for household and public catering industries that implements the control method described in claims 1 to 5, employing a low-water, high-wash cleaning method.

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