Waterway system applied to dish washer

Abstract

The utility model relates to dish washer technical field, apply to the water system of dish washer, including frame, frame is equipped with cleaning cavity, and cleaning cavity is equipped with spray subassembly, first cleaning tank and second cleaning tank, first cleaning tank is equipped with first cavity, water inlet component communicating with first cavity, first water outlet connected with spray subassembly and first overflow drain, second cleaning tank is equipped with second cavity communicating with first overflow drain, second water outlet connected with spray subassembly, and the height of first overflow drain is higher than the height of first water outlet, the utility model discloses utilize the height difference between first overflow drain and first water outlet, make the overflow water that still maintains certain cleanliness in first cleaning tank after use under the action of gravity, through overflow mode natural flow to second cleaning tank carries out secondary utilization, avoided the water resource waste problem that each spray tank water direct discharge led to in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology and is applied to the water system of a dishwasher. Background Technology

[0002] A dishwasher is a device that automatically cleans tableware such as bowls, chopsticks, plates, dishes, knives, and forks. Industrial dishwashers are designed to handle large quantities of tableware and environments where the tableware is particularly dirty. Dishwashers reduce the workload of kitchen staff in restaurants, hotels, and government canteens, improve work efficiency, and enhance hygiene. Unlike household dishwashers, industrial dishwashers typically have larger washing capacities, more durable parts, and faster washing times.

[0003] Industrial dishwashers use a large amount of water, and the cleanliness requirements for the water vary for different cleaning steps. Current dishwasher spray systems generally require each spray tank to be equipped with a separate water inlet pipe. During the spraying process, each spray tank needs to be continuously replenished with water. When the dishwasher finishes cleaning, each spray tank can only drain all the water by discharge, and some clean spray water is directly discarded, which will result in a waste of resources.

[0004] To address the above shortcomings, improvements are needed to the dishwasher to further avoid the direct discharge of spray water, thereby improving water resource utilization. Utility Model Content

[0005] Regarding the aforementioned technical problem of existing dishwashers where each spray tank is equipped with a separate water inlet pipe, requiring continuous water replenishment during the spraying process, and discarding some of the clean spray water after the dishwasher finishes cleaning, the technical solution adopted by this utility model to solve this problem is: A water system for a dishwasher includes a frame with a cleaning chamber. The cleaning chamber has a spray assembly, a first cleaning tank, and a second cleaning tank. The first cleaning tank has a first cavity, a water inlet assembly communicating with the first cavity, a first water outlet connected to the spray assembly, and a first overflow drain communicating with the first cavity. The second cleaning tank has a second cavity communicating with the first overflow drain and a second water outlet connected to the spray assembly. The height of the first overflow drain is higher than the height of the first water outlet.

[0006] Furthermore, in some embodiments of this utility model, the first cavity is provided with a first water storage part communicating with the water inlet assembly, and an overflow cavity located on the upper side of the first water storage part and communicating with the first water storage part, wherein the first overflow drain outlet is located on the side of the overflow cavity close to the second cavity.

[0007] Furthermore, in some embodiments of this utility model, the water inlet assembly includes a water storage tank disposed on the frame and a heating tank connected to the water storage tank, the first water storage part is provided with a first water inlet connected to the heating tank, and the second cavity is provided with a heating assembly.

[0008] Furthermore, in some embodiments of this utility model, the bottom of the second cavity is provided with an inclined surface, which is inclined downward toward the second water outlet.

[0009] Furthermore, in some embodiments of this utility model, a drainage trough communicating with the second cavity is provided on one side of the frame, the drainage trough is provided with a third drain outlet, the second cavity is provided with a second overflow drain outlet communicating with the drainage trough, the height of the second overflow drain outlet is higher than the height of the second water outlet and the height of the third drain outlet, and the tableware moves from the second cavity to the first cavity for cleaning.

[0010] Furthermore, in some embodiments of this utility model, the second cavity is located between the drainage groove and the first cavity, and the drainage groove is close to the end of the frame extending in the direction of extension.

[0011] Furthermore, in some embodiments of this utility model, the frame is provided with a filter assembly, which includes a first filter baffle located on the upper side of the first water storage section, a second filter baffle located on the upper side of the second cavity, and a third filter baffle located in the drainage trough.

[0012] Furthermore, in some embodiments of this utility model, the first water storage part is connected to a first drainage pipe, the second cavity is connected to a second drainage pipe, the drainage trough is connected to a third drainage pipe, and the first drainage pipe, the second drainage pipe, and the third drainage pipe are connected in series.

[0013] Furthermore, in some embodiments of this utility model, the spray assembly includes a first spray assembly communicating with the first water outlet and a second spray assembly communicating with the second water outlet. The first spray assembly is located on the upper side of the first water storage part, and the second spray assembly is located on the upper side of the second cavity.

[0014] Furthermore, in some embodiments of this utility model, the minimum height of the first overflow drain outlet is greater than or equal to the minimum height of the second overflow drain outlet.

[0015] The beneficial effects of this utility model are as follows: This invention connects the first overflow drain of the first cleaning tank to the second cavity of the second cleaning tank. By utilizing the height difference between the first overflow drain and the first outlet, the overflow water in the first cleaning tank, which still maintains a certain level of cleanliness after use, flows naturally to the second cleaning tank for reuse under gravity. This avoids the water waste problem caused by the direct discharge of water from each spray tank in the prior art, and achieves effective recycling of water resources. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the water system of the present invention applied to a dishwasher.

[0017] Figure 2 for Figure 1 Enlarged view of part A.

[0018] Figure 3 for Figure 1 Enlarged view of part B.

[0019] Figure 4 This is a cross-sectional schematic diagram of the water system of the present invention applied to a dishwasher.

[0020] Figure 5 This is another schematic diagram of the water system of the present invention applied to a dishwasher.

[0021] Figure 6 This is a cross-sectional view and a partial enlarged view of the water system of the dishwasher according to this utility model. Detailed Implementation

[0022] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] It should be noted that all directional indications in this utility model embodiment, such as (up, down, left, right, front, back, etc.), are only used to explain the relative positional relationship and movement of each component in a specific posture (as shown in the attached figure). If the specific posture changes, the directional indication will also change accordingly.

[0024] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0025] like Figures 1 to 6 The water system shown is for a dishwasher and includes a frame 1. The frame 1 has a cleaning chamber 2. The cleaning chamber 2 has a spray assembly 3, a first cleaning tank 4 and a second cleaning tank 5. The first cleaning tank 4 has a first cavity 41, a water inlet assembly 10 communicating with the first cavity 41, a first water outlet 42 communicating with the spray assembly 3, and a first overflow drain 43 communicating with the first cavity 41. The second cleaning tank 5 has a second cavity 51 communicating with the first overflow drain 43 and a second water outlet 52 communicating with the spray assembly 3. The height of the first overflow drain 43 is higher than the height of the first water outlet 42.

[0026] This invention connects the first overflow drain of the first cleaning tank to the second cavity of the second cleaning tank. By utilizing the height difference between the first overflow drain and the first outlet, the overflow water in the first cleaning tank, which still maintains a certain level of cleanliness after use, flows naturally to the second cleaning tank for reuse under gravity. This avoids the water waste problem caused by the direct discharge of water from each spray tank in the prior art, and achieves effective recycling of water resources.

[0027] After washing, the water flows naturally to the second washing tank through overflow. This invention achieves water reuse without the need for additional water pumps or complex delivery pipes and power devices. It not only simplifies the overall water system structure but also effectively reduces the power consumption of the dishwasher during operation.

[0028] Compared to existing designs where each spray tank is equipped with a separate water inlet pipe and requires continuous water replenishment, this invention uses an overflow method to supply water from the first cleaning tank to the second cleaning tank. This reduces the continuous consumption of fresh water, simplifies the water circuit connection structure, and lowers the long-term operating costs of the equipment. By setting the height of the first overflow drain outlet higher than the first outlet, it ensures that the first cavity of the first cleaning tank always maintains a water level sufficient for its own spraying needs, guaranteeing the normal operation of the spraying components in the first cleaning tank. Simultaneously, the overflow water flowing into the second cleaning tank can be adapted to its spraying requirements, achieving water conservation without affecting the overall cleaning effect, thus balancing water saving and cleaning performance.

[0029] Of course, in some embodiments, in order to ensure that the water consumption of the second cleaning tank is normal, a water inlet pipe can be connected to the second cleaning tank to ensure that the water consumption is normal in the initial state.

[0030] Optionally, in some embodiments, both the first and second cleaning tanks can be high-temperature rinsing tanks. In the preceding pre-cleaning process, the oil stains on the surface of the tableware have already been cleaned, and the rinsing water with a high degree of cleanliness can be recycled.

[0031] Optionally, in some embodiments, the tableware can be rinsed in a first washing tank and then in a second washing tank. The clean water after rinsing in the first washing tank overflows into the second washing tank. The second washing tank can reduce the power consumption of directly adding fresh water and heating the rinsing water by adding some clean water.

[0032] Optionally, in some embodiments, the tableware can be rinsed in a second washing tank first, and then rinsed in a first washing tank. The clean water after rinsing in the first washing tank overflows into the second washing tank. The second washing tank mixes the overflowing clean water with the existing water, which can reduce the power consumption of directly adding fresh water and heating the rinsing water in the second washing tank.

[0033] Optionally, in some embodiments, the first cleaning tank is a high-temperature rinsing tank, the second cleaning tank is a pre-cleaning tank, and the rinsing water with a high degree of cleanliness in the first cleaning can be recycled into the second cleaning tank.

[0034] In addition, by diverting the water from the first cleaning tank to the second cleaning tank for continued use, the amount of clean water directly discharged is reduced. This not only improves the overall water utilization efficiency but also reduces the amount of wastewater generated and subsequent treatment costs, which helps to reduce water resource expenditures and environmental treatment costs during the long-term use of the dishwasher.

[0035] like Figures 1 to 3The water system shown is used in a dishwasher. The first cavity 41 is provided with a first water storage part 411 that communicates with the water inlet assembly 10, and an overflow cavity 412 located on the upper side of the first water storage part 411 and communicating with the first water storage part 411. The first overflow drain outlet 43 is located on the side of the overflow cavity 412 near the second cavity 51.

[0036] Optionally, in some embodiments, the spray water in the cleaning chamber is directly returned to the first cleaning chamber. By providing a first water storage section and an overflow chamber that are interconnected and separated vertically within the first chamber, and by placing the first overflow drain outlet on the side of the overflow chamber closer to the second chamber, the water in the first cleaning tank is first stored in the first water storage section for use by the spray assembly. When the water level rises above the capacity of the water storage section, the excess water can naturally overflow into the overflow chamber and flow into the second chamber through the first overflow drain outlet located on one side of the overflow chamber. This achieves the cascade reuse of the cleaning water and prevents the water from being directly discharged from the first overflow drain outlet.

[0037] Specifically, the first water storage section is mainly used to store and supply the main cleaning water, ensuring that the spray components use a relatively clean and stable water source during the cleaning process. The overflow chamber is used to receive excess water that exceeds the normal water level. Although this water has been used to some extent, it still has a certain cleaning ability. It is directed to the second cleaning tank for reuse through overflow, which does not affect the cleaning water quality of the first cleaning tank and also provides water for subsequent cleaning steps, thus helping to improve the overall cleaning efficiency and effect.

[0038] like Figures 1 to 5 The water system shown is used in a dishwasher. The water inlet assembly 10 includes a water storage tank 7 disposed on the frame 1 and a heating tank 8 connected to the water storage tank 7. The first water storage part 411 is provided with a first water inlet 4111 connected to the heating tank 8, and the second cavity 51 is provided with a heating assembly 511.

[0039] Specifically, the water inlet assembly is equipped with a pump to increase the water transfer speed, a water storage tank for centralized storage of water to be treated, and a heating tank for centralized heating of the water in the water storage tank. The heated cleaning water is then pumped through the first water inlet to the first water storage section, so that the spray water entering the first cleaning tank can be preheated to a suitable temperature before entering the spray assembly. This not only helps to improve the removal effect of oil stains and food residues and avoids the problem of poor cleaning effect caused by water temperature fluctuations, but also improves the sterilization ability during the cleaning process and achieves the rinsing effect.

[0040] In addition, the second chamber is equipped with a heating component, which allows the water in the second cleaning tank to be heated independently according to the actual cleaning needs. This enables flexible control of different water temperatures for stages such as pre-rinse, main wash, and rinsing, meeting the cleaning process requirements and enhancing the functionality and practicality of the equipment.

[0041] like Figure 6 The water system shown is used in a dishwasher. The bottom of the second cavity 51 is provided with an inclined surface 512, which is inclined downward toward the second water outlet 52.

[0042] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, by providing an inclined surface at the bottom of the second cavity that slopes downward toward the second water outlet, the cleaning water generated during the use of the second cleaning tank can naturally collect along the inclined surface toward the second water outlet, avoiding water stagnation at the bottom of the second cavity, effectively improving water discharge efficiency, and preventing secondary pollution or reduced cleaning effect caused by water accumulation.

[0043] In some embodiments, during the pre-rinsing stage, some food residue may remain at the bottom of the second cavity. By setting an inclined surface, the food residue can be guided to gather to one side, making it easier to clean later.

[0044] like Figures 1 to 5 The water system shown is used in a dishwasher. The frame 1 has a drain trough 6 on one side that communicates with the second cavity 51. The drain trough 6 has a third drain outlet 61. The second cavity 51 has a second overflow drain outlet 513 that communicates with the drain trough 6. The height of the second overflow drain outlet 513 is higher than the height of the second water outlet 52 and the height of the third drain outlet 61, respectively. The tableware moves from the second cavity 51 toward the first cavity 41 and is washed.

[0045] Furthermore, as a preferred embodiment of this utility model and not a limitation, by setting a second overflow drain outlet at a height higher than the second water outlet and the third drain outlet, and connecting it to a drainage trough connected to the second cavity, the excess water in the second cleaning tank can overflow directionally into the drainage trough through the second overflow drain outlet when the water level exceeds the height required for normal cleaning during use, and then be discharged through the third drain outlet. This avoids disorderly discharge and waste of water, and realizes the graded utilization and rational discharge of cleaning water, which helps to improve the overall water resource utilization efficiency.

[0046] Specifically, grease floating on the water surface can be preferentially discharged through the second overflow drain. Under gravity, excess water after washing flows naturally along a preset path to the drain tank and is discharged through the third drain, thus improving water cleanliness. The second overflow drain is higher than the second outlet, ensuring the second chamber maintains a certain water level during water intake. This ensures the spray assembly operates under suitable water conditions, guaranteeing effective coverage and impact of the washing water on the tableware surface, improving cleaning uniformity and stability. Simultaneously, the second overflow drain is positioned higher than the third drain to prevent premature drainage of all washing water, ensuring a sufficient and continuous washing process and improving overall cleaning quality.

[0047] like Figures 1 to 5 The water system shown is used in a dishwasher, in which the second cavity 51 is located between the drain trough 6 and the first cavity 41, and the drain trough 6 is located near the end of the frame 1 in the extending direction.

[0048] In this invention, the tableware moves from the second cavity to the first cavity for cleaning. The second cavity serves as the main washing stage, while the first cavity serves as the rinsing stage. The clean water in the first cavity can be replenished into the second cavity, reducing the need for hot water to be added to the second cavity. At the same time, the second cavity, which has a higher cleaning pressure, transfers grease, floating food residue, etc., to the drain tank, further reducing the deterioration of the water quality in the second cavity and improving the cleaning effect of the spray.

[0049] Furthermore, as a preferred embodiment of the present invention and not a limitation thereof, by setting the second cavity between the drainage trough and the first cavity, and placing the drainage trough near the end of the frame in the extension direction, not only is the internal space of the frame effectively utilized, but also the orderly distribution of cleaning, overflow and drainage functions is realized, thereby improving the compactness and space utilization of the overall structure of the equipment.

[0050] Specifically, the second chamber is located on one side of the drainage trough, so that excess water discharged from the second chamber through the second overflow drain can flow directly into the adjacent drainage trough and be quickly discharged through the third drain near the end of the frame. This avoids the problem of poor drainage caused by the detour of the drainage path or the reverse flow of water, effectively improves the discharge efficiency of water after cleaning, prevents sewage stagnation, and helps maintain a clean environment in the cleaning chamber.

[0051] In addition, by independently setting the drainage trough at the end of the frame and forming a partitioned layout with the second cavity, the drainage trough and the third drain outlet are relatively separated from the cleaning cavity. This not only simplifies the water circuit connection, but also facilitates independent inspection, cleaning and maintenance of the drainage system in actual use, reducing the difficulty of equipment maintenance.

[0052] like Figures 1 to 6The water system shown is used in a dishwasher. The frame 1 is equipped with a filter assembly 9, which includes a first filter baffle 91 located on the upper side of the first water storage section 411, a second filter baffle 92 located on the upper side of the second cavity 51, and a third filter baffle 93 located on the drain trough 6.

[0053] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, by providing a first filter baffle on the upper side of the first water storage section, a second filter baffle on the upper side of the second cavity, and a third filter baffle in the drain trough, food residue, oil stains, and solid impurities generated during the washing process can be intercepted and filtered step by step as the water flows to each functional cavity and the drain path, preventing large particles of impurities from entering the spray system or circulating water path, effectively improving the cleanliness of the washing water, preventing the spray components from clogging, and ensuring the stability and reliability of the dishwasher's operation.

[0054] Furthermore, a filter assembly can be installed at the second outlet and the inlet of the second drainage pipe to reduce the entry of large particulate impurities into the water system.

[0055] like Figures 1 to 5 The water system shown is used in a dishwasher. The first water storage part 411 is connected to the first drain pipe 4110, the second cavity 51 is connected to the second drain pipe 510, and the drain tank 6 is connected to the third drain pipe 610. The first drain pipe 4110, the second drain pipe 510, and the third drain pipe 610 are connected.

[0056] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, by connecting the first drainage pipe, the second drainage pipe, and the third drainage pipe, which are independently set up for the first water storage section, the second cavity, and the drainage tank, the residual clean water, overflow water, and sediment wastewater generated by each functional cavity during use can all be centrally discharged through a unified and connected drainage path. This not only simplifies the overall water circuit layout and realizes the centralized discharge of wastewater from multiple cavities and the optimized integration of the water circuit system, but also effectively improves the efficiency and consistency of wastewater discharge and avoids the problems of incomplete discharge or pipeline redundancy caused by multiple decentralized discharges.

[0057] like Figures 1 to 5 The water system shown is used in a dishwasher. The spray assembly 3 includes a first spray assembly 31 that communicates with the first water outlet 42 and a second spray assembly 32 that communicates with the second water outlet 52. The first spray assembly 31 is located on the upper side of the first water storage part 411, and the second spray assembly 32 is located on the upper side of the second cavity 51.

[0058] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, by connecting the first spray assembly to the first water outlet and placing it on the upper side of the first water storage section, and by connecting the second spray assembly to the second water outlet and placing it on the upper side of the second cavity, the heated or treated cleaning water can be evenly sprayed downwards from the upper part of the cavity to cover the surface of the tableware to be cleaned, ensuring that the spray water flow has sufficient impact force and coverage, thereby effectively removing oil stains and food residues, and improving the overall cleaning effect and cleaning efficiency.

[0059] Specifically, by setting up a first spray assembly and a second spray assembly respectively, and connecting them to the water outlets of different cavities, this invention can use independent spray systems for different main wash and rinsing stages. This makes it easy to adjust the water temperature, water pressure or water quality of each cavity according to actual cleaning needs, realize the flexible configuration of multi-level cleaning processes, and improve the dishwasher's adaptability to different types of stains and cleaning requirements.

[0060] like Figures 1 to 4 The water system shown is used in a dishwasher, where the lowest height of the first overflow drain 43 is greater than or equal to the lowest height of the second overflow drain 513.

[0061] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, by setting the minimum height of the first overflow drain outlet to be greater than or equal to the minimum height of the second overflow drain outlet, the water in the first cleaning tank that has been used but still has a certain cleaning ability can preferentially overflow through the first overflow drain outlet to the second cavity for reuse after the water level reaches the set height, instead of being discharged directly into the drainage system too early. This enables the tiered flow and reuse of cleaning water from the high-cleanliness requirement cavity to the low-cleanliness requirement cavity, effectively reducing the waste of clean water and improving the overall water resource utilization efficiency.

[0062] Example 1 like Figures 1 to 6 The water system shown is for a dishwasher and includes a frame 1. The frame 1 has a cleaning chamber 2. The cleaning chamber 2 has a spray assembly 3, a first cleaning tank 4 and a second cleaning tank 5. The first cleaning tank 4 has a first cavity 41, a water inlet assembly 10 communicating with the first cavity 41, a first water outlet 42 communicating with the spray assembly 3, and a first overflow drain 43 communicating with the first cavity 41. The second cleaning tank 5 has a second cavity 51 communicating with the first overflow drain 43 and a second water outlet 52 communicating with the spray assembly 3. The height of the first overflow drain 43 is higher than the height of the first water outlet 42.

[0063] This invention connects the first overflow drain 43 of the first cleaning tank 4 to the second cavity 51 of the second cleaning tank 5. By utilizing the height difference between the first overflow drain 43 and the first outlet 42, the overflow water in the first cleaning tank 4, which still maintains a certain level of cleanliness after use, flows naturally to the second cleaning tank 5 for secondary use under the action of gravity. This avoids the water waste problem caused by the direct discharge of water from each spray tank in the prior art and realizes the effective recycling of water resources.

[0064] A water inlet pipe is connected to the second cleaning tank 5 to ensure normal water use in the initial state.

[0065] Example 2 Based on Example 1, Example 2 also has the following implementation method: The first cavity 41 is provided with a first water storage part 411 that communicates with the water inlet assembly 10, and an overflow cavity 412 located on the upper side of the first water storage part 411 and communicating with the first water storage part 411. The first overflow drain 43 is located on the side of the overflow cavity 412 close to the second cavity 51.

[0066] Some of the spray water in cleaning chamber 2 will flow back directly into the first cleaning chamber 4.

[0067] The water inlet assembly 10 includes a water storage tank 7 disposed on the frame 1 and a heating tank 8 connected to the water storage tank 7. The first water storage part 411 is provided with a first water inlet 4111 connected to the heating tank 8, and the second cavity 51 is provided with a heating assembly 511.

[0068] The bottom of the second cavity 51 is provided with an inclined surface 512, which is inclined downward toward the second water outlet 52.

[0069] Example 3 Based on Example 2, Example 3 also has the following implementation method: The frame 1 has a drainage trough 6 connected to the second cavity 51 on one side. The drainage trough 6 has a third drain outlet 61. The second cavity 51 has a second overflow drain outlet 513 connected to the drainage trough 6. The height of the second overflow drain outlet 513 is higher than the height of the second water outlet 52 and the height of the third drain outlet 61, respectively. The tableware moves from the second cavity 51 to the first cavity 41 and is cleaned.

[0070] The second cavity 51 is located between the drainage channel 6 and the first cavity 41, and the drainage channel 6 is close to the end of the frame 1 in the extending direction.

[0071] The frame 1 is provided with a filter assembly 9, which includes a first filter baffle 91 located on the upper side of the first water storage part 411, a second filter baffle 92 located on the upper side of the second cavity 51, and a third filter baffle 93 located on the drainage trough 6.

[0072] A filter assembly can be installed at the inlet of the second outlet 52 and the second drainage pipe 510 to reduce the entry of large particulate impurities into the water system.

[0073] The first water storage section 411 is connected to a first drainage pipe 4110, the second cavity 51 is connected to a second drainage pipe 510, and the drainage trough 6 is connected to a third drainage pipe 610. The first drainage pipe 4110, the second drainage pipe 510, and the third drainage pipe 610 are connected.

[0074] The lowest height of the first overflow drain 43 is greater than or equal to the lowest height of the second overflow drain 513.

[0075] Example 4 Based on Example 2, Example 4 also has the following implementation method: The spray assembly 3 includes a first spray assembly 31 connected to the first water outlet 42 and a second spray assembly 32 connected to the second water outlet 52. The first spray assembly 31 is located on the upper side of the first water storage part 411, and the second spray assembly 32 is located on the upper side of the second cavity 51.

[0076] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A water system for a dishwasher, comprising a frame (1) having a cleaning chamber (2), characterized in that: The cleaning chamber (2) is provided with a spray assembly (3), a first cleaning tank (4) and a second cleaning tank (5). The first cleaning tank (4) is provided with a first cavity (41), a water inlet assembly (10) connected to the first cavity (41), a first water outlet (42) connected to the spray assembly (3), and a first overflow drain (43) connected to the first cavity (41). The second cleaning tank (5) is provided with a second cavity (51) connected to the first overflow drain (43) and a second water outlet (52) connected to the spray assembly (3). The height of the first overflow drain (43) is higher than the height of the first water outlet (42).

2. The water system for a dishwasher according to claim 1, characterized in that: The first cavity (41) is provided with a first water storage part (411) communicating with the water inlet assembly (10) and an overflow cavity (412) located on the upper side of the first water storage part (411) and communicating with the first water storage part (411). The first overflow drain (43) is located on the side of the overflow cavity (412) close to the second cavity (51).

3. The water system for a dishwasher according to claim 2, characterized in that: The water inlet assembly (10) includes a water storage tank (7) disposed in the frame (1) and a heating tank (8) connected to the water storage tank (7). The first water storage part (411) is provided with a first water inlet (4111) connected to the heating tank (8), and the second cavity (51) is provided with a heating assembly (511).

4. The water system for a dishwasher according to claim 1, characterized in that: The bottom of the second cavity (51) is provided with an inclined surface (512), which is inclined downward toward the second water outlet (52).

5. The water system for a dishwasher according to claim 2, characterized in that: The frame (1) has a drainage trough (6) connected to the second cavity (51) on one side. The drainage trough (6) has a third drain outlet (61). The second cavity (51) has a second overflow drain outlet (513) connected to the drainage trough (6). The height of the second overflow drain outlet (513) is higher than the height of the second outlet (52) and the height of the third drain outlet (61). The tableware moves from the second cavity (51) to the first cavity (41) and is cleaned.

6. The water system for a dishwasher according to claim 5, characterized in that: The second cavity (51) is located between the drain trough (6) and the first cavity (41), and the drain trough (6) is close to the end of the frame (1) in the extension direction.

7. The water system for a dishwasher according to claim 5, characterized in that: The frame (1) is provided with a filter assembly (9), which includes a first filter baffle (91) located on the upper side of the first water storage part (411), a second filter baffle (92) located on the upper side of the second cavity (51), and a third filter baffle (93) located in the drain trough (6).

8. The water system for a dishwasher according to claim 5, characterized in that: The first water storage section (411) is connected to the first drainage pipe (4110), the second cavity (51) is connected to the second drainage pipe (510), and the drainage trough (6) is connected to the third drainage pipe (610). The first drainage pipe (4110), the second drainage pipe (510), and the third drainage pipe (610) are connected.

9. The water system for a dishwasher according to claim 2, characterized in that: The spray assembly (3) includes a first spray assembly (31) connected to the first water outlet (42) and a second spray assembly (32) connected to the second water outlet (52). The first spray assembly (31) is located on the upper side of the first water storage part (411), and the second spray assembly (32) is located on the upper side of the second cavity (51).

10. The water system for a dishwasher according to claim 5, characterized in that: The lowest height of the first overflow drain (43) is greater than or equal to the lowest height of the second overflow drain (513).

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