Method for temporary aquaculture in a cleaning machine

Abstract

The present application relates to a kind of aquaculture methods of cleaning machine, cleaning machine includes sink and can be removed and is set in sink food material cleaning tank, the outside wall of sink is provided with for food material cleaning tank water supply, gas supply and can be connected or disconnected with food material cleaning tank supply system, the water supply channel of supply system is connected micro-nano bubble generator, the bottom of food material cleaning tank is provided with the aeration structure connected with the gas supply channel of supply system;In the state that food material cleaning tank is communicated with supply system, water product is placed in food material cleaning tank, and micro-nano bubble water is input to food material cleaning tank by micro-nano bubble generator to the set water level, and the oxygen content in water is improved;Then maintain low-frequency aeration state in food material cleaning tank by aeration structure, keep the oxygen content in water;After a period of time, water is replaced by supply system, and air is supplemented by increasing gas supply amount, after water quality, oxygen content reaches set value, continue to maintain low-frequency aeration state.

Description

Technical Field

[0001] This invention relates to the fields of kitchen sinks and automatic food washing machines, specifically to a method for temporarily holding aquatic products in a washing machine. Background Technology

[0002] For Chinese kitchens, due to the abundance of ingredients, the need for washing fruits, vegetables, fish, and meat is very high. Currently, people mostly use sinks to wash fruits, vegetables, fish, and meat, which is time-consuming and laborious. To solve this problem, the applicant's prior patent ZL201610632336.9, "Integrated Sink Washing Device," discloses a structure that integrates a separate fruit and vegetable washing machine next to the sink. While this provides convenience for users to wash fruits, vegetables, fish, and meat, the drainage components and the drive structure of the fruit and vegetable washing machine are all located at the bottom of the sink, which severely limits the height and volume of the washing machine and the sink, affecting the independent usable space of the sink.

[0003] Furthermore, live aquatic products such as fish, shrimp, and crab are commonly found in Chinese kitchens. If consumers buy fresh seafood in the morning but fail to properly hold it in place, these products often become stale by the time they are cooked at noon or in the evening, severely impacting their taste. Currently, consumers typically hold seafood in basins or baskets used for washing vegetables. This not only requires space in the kitchen for these containers, reducing usable space such as sinks and lowering space utilization, but also results in poor holding conditions and an inability to maintain the freshness of the seafood due to the significant difference between the current environment and the environment required by the products. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a method for temporarily holding aquatic products in a cleaning machine that does not affect the independent usable volume of the water tank and can provide automatic cleaning and temporary holding functions, in light of the current state of the prior art.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A method for temporarily holding aquatic products with a cleaning machine, the cleaning machine including a water tank and a food cleaning tank detachably disposed in the water tank, the outer wall of the water tank being provided with a supply system for supplying water and air to the food cleaning tank and being able to communicate or disconnect from the food cleaning tank, the water supply channel of the supply system being connected to a micro-nano bubble generator, and the bottom of the food cleaning tank being provided with an aeration structure connected to the air supply channel of the supply system.

[0007] With the food washing tank connected to the supply system, aquatic products are placed in the food washing tank. Micro-nano bubble generators input micro-nano bubble water to the food washing tank to the set water level, increasing the oxygen content in the water. Then, the aeration structure maintains a low-frequency aeration state in the food washing tank to maintain the oxygen content in the water and prevent aquatic products from dying due to stress.

[0008] After a period of time, the water is replaced by the supply system and the air supply is increased to replenish the air. Once the water quality and oxygen content reach the set values, the low-frequency aeration state is maintained.

[0009] As an improvement, the supply system is equipped with oxygen content sensors, temperature sensors, heating modules, and turbidity sensors at the water and air inlets. These sensors are used to monitor the dissolved oxygen content, water temperature, and turbidity in the food washing tank in real time, and to adjust the water temperature, control water changes, and regulate air supply based on the monitored parameters. This structure allows for timely detection and adjustment of water parameters to better suit the temporary holding conditions for aquatic products, thus maintaining their freshness.

[0010] The aquatic temporary holding method of the present invention is as follows:

[0011] Move the food washing tank in the sink to connect with the supply system;

[0012] Users place aquatic products into the food washing tank and select the water level and holding time according to the type of aquatic products (usually fish, shrimp, crab, and shellfish) and quantity. There are usually three levels for users to choose from, such as 4L, 7L, and 10L. Users can also select the holding time in hours using the mode button, usually 1h-24h.

[0013] Turn on the micro-nano bubble generator and input micro-nano bubble water into the food washing tank through the supply system. After the water intake reaches the set value, stop the micro-nano bubble generator and stop the water intake; turn on the aeration structure and maintain a low-frequency aeration state.

[0014] The oxygen content sensor monitors the oxygen content 'a' in the water in real time, and the temperature sensor monitors the water temperature 't' in real time. When the water temperature 't' is detected to be lower than the set value, the heating module is turned on until the water temperature meets the requirements. When the oxygen content 'a' in the water is detected to be lower than the set value, the air supply is increased, and the aeration structure replenishes air to the food washing tank in a gentle bubbling manner to avoid generating loud noise. If the oxygen content 'a' in the water is still lower than the set value after a certain period of time, the air supply is further increased, and the aeration structure replenishes air to the food washing tank in a vigorous bubbling manner. When the oxygen content 'a' in the water reaches the set value, the air replenishment is stopped, and the aeration structure maintains a low-frequency aeration state.

[0015] When the water intake is complete, the turbidity sensor records a turbidity value S. During the temporary holding period, the turbidity sensor (usually a light-type sensor to detect turbidity) monitors the turbidity S of the water in real time. When the turbidity of the water is significantly higher than the initial value, and the difference reaches M, that is, Ss>M (M is adjusted according to different types of aquatic products. Generally, fish and shrimp are more active in the cleaning machine and are more likely to cause water turbidity, so the corresponding threshold is higher. Shellfish have lower activity and only expel sand, so the corresponding threshold is set lower), it is determined that there is a lot of sand or excrement from the aquatic products and the water is turbid. The automatic water intake and drainage program is started. After the water is changed, the next turbidity judgment program is started. This cycle continues to maintain the cleanliness of the water.

[0016] Using the above method, when temporary holding of aquatic products is required, the food washing tank is moved in the water tank to a state connected to the water supply system. The aquatic products are then placed in the food washing tank, and temporary holding is achieved through water and air supply from the system. During the holding process, the temperature, turbidity, and oxygen content of the holding water can be monitored in real time and adjusted accordingly, providing the optimal breeding environment for the aquatic products and keeping them fresh for an extended period. When the temporary holding function is not needed, the food washing tank can also automatically wash the products. By moving the food washing tank in the water tank to a state connected to the water supply system, water is introduced into the tank, creating turbulence to clean the products. When only large items need to be washed in the water tank, the food washing tank can be removed, providing a large washing space to meet user needs. This invention satisfies various customer needs, providing automatic cleaning and temporary holding functions for aquatic products without affecting the independent usable volume of the water tank.

[0017] During the above process, after water enters, the oxygen content sensor monitors the oxygen content 'a' in real time, and the temperature sensor monitors the water temperature 't'. The program presets the optimal water temperature and oxygen content ranges for each type of seafood and the desired temperature setting (for example, most seafood thrives with a dissolved oxygen level of 4-5 mg / L and a water temperature of around 20°C; for medium to high-temperature settings, due to the larger quantity and density, the corresponding parameters are adjusted accordingly). If the detected water temperature 't' is too low, the heating module is activated; if the water temperature is too high, the cooling module is activated to stabilize the water temperature at approximately the preset value 'T'. Once the dissolved oxygen level (a) falls below the minimum threshold (A), the air pump is turned on to aerate the water. Initially, the low-power mode (usually around 15W-20W depending on the type and model of the blower) is used to gently aerate the water and avoid excessive noise. If the water level still does not reach the preset maximum threshold (B) after a certain period of time, it indicates that the oxygen consumption in the water is high or the dissolved oxygen efficiency is low. The air pump is then turned on to the high-power mode (usually 25W-30W) to increase the air supply. Once the water level reaches threshold (B), the aeration is stopped. If the temporary conditioning period is not over, this cycle of controlling water temperature and oxygen content is repeated.

[0018] After water enters the system, the turbidity sensor first records a turbidity value S. During operation, the turbidity s of the water body is also monitored in real time by the turbidity sensor (usually a light-type sensor to detect turbidity). When the turbidity of the water body is significantly higher than the initial value, and the difference reaches M, that is, Ss>M (M is adjusted according to different types of aquatic products. Generally, fish and shrimp are more active in the cleaning machine and are more likely to cause water turbidity, so the corresponding threshold is higher. Shellfish have lower activity and only expel sand, so the corresponding threshold is set lower), it is determined that there is a lot of sand or excrement from the aquatic products, and the water body is relatively turbid. The automatic water exchange program is started, and after water enters, the next turbidity judgment cycle is started to keep the water body clean.

[0019] Preferably, the supply system is further equipped with a cooling module. When the water temperature t is detected to be higher than a set value, the cooling module is activated until the water temperature meets the requirements. Excessively high temperatures can also lead to aquatic animal inactivation. By incorporating this cooling module, the temperature of the holding water can be more precisely controlled according to needs, thereby improving the holding effect.

[0020] Preferably, the supply system is a first installation module integrating water supply, gas supply, and drainage structures. This first installation module is flat and arranged close to the outer wall of the water tank. Setting the integrated water supply, gas supply, and drainage structure as a flat first installation module facilitates installation on the side of the water tank, greatly saving installation space and improving space utilization.

[0021] Preferably, the sidewall of the food washing tank has an air inlet and a water outlet arranged side by side near the bottom. The supply system is provided with an air inlet pipe connected to the air inlet, a water inlet pipe connected to the water outlet, and a drain pipe. Sharing a single water outlet for both water inlet and drain simplifies the structure and facilitates production. Separating the openings for air circulation and water flow allows for independent water and air supply to the food washing tank.

[0022] Preferably, the air inlet pipe has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure, the water inlet pipe is located below the air inlet pipe and also has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure, and the drain pipe is located below the water inlet pipe and extends laterally downwards along the water flow direction. The input end of the air inlet pipe, the input end of the water inlet pipe, and the discharge end of the drain pipe are arranged sequentially from top to bottom. The output end of the air inlet pipe is connected to the air inlet, and the output end of the water inlet pipe intersects with the input end of the drain pipe and is connected to the water outlet. During food washing, due to the turbulent water flow in the tank, a small amount of backflow may occur. The above structure is adopted to prevent backflowing water from entering the air inlet pipe and affecting its front air intake structure, or entering the water inlet pipe and affecting its front water intake structure.

[0023] Preferably, the food washing tank includes an outer tank, a middle tank, and an inner tank. The middle tank is fitted inside the outer tank, and the bottom of the outer tank has a recessed water inlet area. The bottom of the middle tank is connected to this water inlet area. The inner tank is fitted inside the middle tank and is used to hold the food to be washed. The bottom of the inner tank has a drain hole connected to the middle tank. The bottom of the inner tank also has an aeration channel and a bubble hole that can be connected to the supply system. The aeration channel is connected to the supply system through an air guide pipe that passes through the bottom of the middle tank and the water inlet area. This structure ensures that the gas channel and the water flow channel do not interfere with each other's operation, while the water inlet and outlet can flush the air guide pipe to prevent residue accumulation. Bubbling provides turbulent cleaning of the water inlet area to prevent residue accumulation. In other words, the combination of the outer, middle, and inner tanks and their coordination with the water flow channel and the gas channel prevent localized residue accumulation before and after washing.

[0024] Compared with existing technologies, the advantages of this invention are as follows: This invention incorporates a food cleaning tank within a large-volume water tank, enabling automatic food cleaning and temporary aquatic rearing. The food cleaning tank can be slidably positioned within the water tank. When temporary rearing of aquatic products is required, the food cleaning tank is moved within the water tank to a state connected to the water supply system. The aquatic products are then placed in the food cleaning tank, and water and air are supplied through the system for temporary rearing. During the rearing process, the temperature, turbidity, and oxygen content of the rearing water can be monitored and adjusted in real time to provide the optimal breeding environment for the aquatic products, maintaining their freshness for an extended period. When the temporary rearing function is not required, the food cleaning tank can also automatically clean the food. It is moved within the water tank to a state connected to the water supply system, and water is introduced into the tank, creating turbulent flow to clean the food. When only large items need to be washed in the water tank, the food cleaning tank can be removed, providing a large cleaning space to meet user needs. This invention meets a variety of customer needs, providing automatic cleaning and aquatic holding functions without affecting the independent usable volume of the water tank. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0026] Figure 2 for Figure 1 Another angle view;

[0027] Figure 3 for Figure 1 Exploded view of the water tank and food washing tank;

[0028] Figure 4 for Figure 2 A structural diagram of the hidden portion of the outer shell;

[0029] Figure 5 for Figure 1 A sectional view;

[0030] Figure 6 This is another cross-sectional view of an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the food washing tank in an embodiment of the present invention;

[0032] Figure 8 for Figure 7 A structural diagram showing the exploded internal groove;

[0033] Figure 9 for Figure 7 Exploded view of the outer and middle sections of the tank;

[0034] Figure 10 This is a schematic diagram of the structure of another hidden part of the outer shell in an embodiment of the present invention. Detailed Implementation

[0035] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0037] In the description of this invention, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms 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 this 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 this invention.

[0038] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Where applicable, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0042] like Figures 1-10As shown, the aquatic temporary holding method of the cleaning machine in this embodiment uses a cleaning machine including a water tank 1 and a food cleaning tank 10 detachably installed in the water tank 1. The bottom of the water tank 1 is provided with a drain outlet 12 for drainage. The outer wall of the water tank 1 is provided with a supply system for supplying water and air to the food cleaning tank 10 and can be connected or disconnected from the food cleaning tank 10. The water supply channel of the supply system is connected to a micro-nano bubble generator 222. The bottom of the food cleaning tank 10 is provided with an aeration structure connected to the air supply channel of the supply system.

[0043] With the food washing tank 10 connected to the supply system, aquatic products are placed in the food washing tank 10. Micro-nano bubble generator 222 inputs micro-nano bubble water into the food washing tank 10 to the set water level to increase the oxygen content in the water. Then, the aeration structure maintains a low-frequency aeration state in the food washing tank to maintain the oxygen content in the water. After a period of time, the water is changed through the supply system and the air supply is increased to replenish the air. After the water quality and oxygen content reach the set value, the low-frequency aeration state is maintained.

[0044] The supply system is equipped with an oxygen content sensor 001, a temperature sensor 002, a heating module 003, and a turbidity sensor 004 at its water and air inlets. These sensors are used to monitor the dissolved oxygen content, water temperature, and turbidity in the food washing tank 10 in real time, and to adjust the water temperature, control water changes, and regulate air supply based on the monitored parameters. The supply system also includes a cooling module 005 to lower the water temperature in the food washing tank 10. This structure allows for timely monitoring and adjustment of water parameters to better suit the temporary holding conditions for aquatic products, thus maintaining their freshness.

[0045] The aquatic temporary holding method in this embodiment is as follows:

[0046] Move the food washing tank 10 in the water tank 1 to connect with the supply system;

[0047] Users place aquatic products into the food washing tank 10 and select the water volume and holding time according to the type of aquatic products (usually fish, shrimp, crab, and shellfish) and quantity. There are usually three levels: low, medium, and high for users to choose from, such as 4L, 7L, and 10L. Users can also select the specific holding time in hours using the mode button, usually 1h-24h. The optimal water temperature range and oxygen content range for the corresponding seafood are preset (most aquatic products are suitable for dissolved oxygen of 4-5mg / L and water temperature of around 20℃. For medium and high levels, due to the large quantity and density, the corresponding parameters should be adjusted accordingly).

[0048] Turn on the micro-nano bubble generator 222 and input micro-nano bubble water into the food washing tank 10 through the supply system. After the water intake reaches the set value, stop the micro-nano bubble generator 222 and stop the water intake; turn on the aeration structure and maintain a low-frequency aeration state.

[0049] Oxygen sensor 001 monitors the oxygen content 'a' in the water in real time, and temperature sensor 002 monitors the water temperature 't' in real time. When the water temperature 't' is detected to be lower than the set value, the heating module 003 is turned on until the water temperature meets the requirements. When the water temperature 't' is detected to be higher than the set value, the cooling module 005 is turned on until the water temperature meets the requirements. When the oxygen content 'a' in the water is detected to be lower than the set value, the air supply is increased (fan power 15W-20W), and the aeration structure replenishes air to the food washing tank in a gentle bubbling manner to avoid generating loud noise. If the oxygen content 'a' in the water is still lower than the set value after a certain period of time, the air supply is further increased (fan power 25W-30W), and the aeration structure replenishes air to the food washing tank in a vigorous bubbling manner. When the oxygen content 'a' in the water reaches the set value, the air replenishment is stopped, and the aeration structure maintains a low-frequency aeration state.

[0050] The turbidity sensor 004 records a turbidity value S when the water intake is complete. During the temporary holding process, the turbidity sensor (selecting a light sensor to detect turbidity) monitors the turbidity S of the water in real time. When the turbidity of the water is significantly higher than the initial value, and the difference reaches M, i.e., Ss>M (M is adjusted according to different types of aquatic products. Generally, fish and shrimp are more likely to cause water turbidity because they are more active in the cleaning machine, so the corresponding threshold is higher. Shellfish have lower activity levels and only perform actions such as spitting out sand, so the corresponding threshold is set lower), it is determined that there is a lot of sand or excrement from the aquatic products, and the water is turbid. The automatic water intake and drainage program is started. After the water is changed, the next turbidity judgment program is started. This cycle continues to maintain the cleanliness of the water.

[0051] Using the above method, when temporary holding of aquatic products is required, the food washing tank is moved in the water tank to a state connected to the water supply system. The aquatic products are then placed in the food washing tank, and temporary holding is achieved through water and air supply from the system. During the holding process, the temperature, turbidity, and oxygen content of the holding water can be monitored in real time and adjusted accordingly, providing the optimal breeding environment for the aquatic products and keeping them fresh for an extended period. When the temporary holding function is not needed, the food washing tank can also automatically wash the products. By moving the food washing tank in the water tank to a state connected to the water supply system, water is introduced into the tank, creating turbulence to clean the products. When only large items need to be washed in the water tank, the food washing tank can be removed, providing a large washing space to meet user needs. This invention satisfies various customer needs, providing automatic cleaning and temporary holding functions for aquatic products without affecting the independent usable volume of the water tank.

[0052] The food washing tank 10 is slidably disposed within the water tank 1 along its lateral direction. When the food washing tank 10 is moved to a fixed position, it connects to the supply system to achieve automatic food washing; when the food washing tank 10 is moved to another position, it disconnects from the supply system and can be removed entirely from the water tank 1 for use as an independent fruit and vegetable tank. In this embodiment, the inner sidewall of the water tank 1 is provided with a laterally extending guide rib 11, and correspondingly, the sidewall of the food washing tank 10 has a guide portion 311 that can reciprocate and slide against the guide rib 11. This structure enables the food washing tank 10 to slide laterally within the water tank 1.

[0053] The supply system is a first installation module 21 integrating water supply, gas supply, and drainage structures. This first installation module 21 is flat and arranged close to the outer wall of the water tank 1. Setting the integrated water supply, gas supply, and drainage structure as a flat first installation module 21 facilitates the installation of the first installation module 21 on the side of the water tank 1, greatly saving installation space and improving space utilization.

[0054] The first installation module 21 includes an air inlet pipe 211, a water inlet pipe 212, and a drain pipe 213. The air inlet pipe 211 has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. Bends and right angles in the air inlet pipe 211 can cause energy loss; smooth transitions can reduce this loss. The water inlet pipe 212 is located below the air inlet pipe 211 and also has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The drain pipe 213 is located below the water inlet pipe 212, extends horizontally, and gradually slopes downwards along the water flow direction. The input ends of the air inlet pipe 211, the water inlet pipe 212, and the drain pipe 213 are arranged sequentially from top to bottom. The output end of the air inlet pipe 211 is connected to the air inlet 312, and the output end of the water inlet pipe 212 intersects with the input end of the drain pipe 213 and connects to the water outlet 313. During food washing, a small amount of backflow may occur due to the turbulent water flow within the tank. The above structure is designed to prevent backflowing water from entering the air inlet pipe and affecting its front air intake structure, or entering the water inlet pipe and affecting its front water intake structure. In another embodiment, by sacrificing space on the side of the tank, the water inlet pipe can be arranged parallel to the air inlet pipe.

[0055] In this embodiment, the food washing tank 10 includes an outer tank 31, a middle tank 32, and an inner tank 33. The middle tank 32 is fitted inside the outer tank 31. The bottom of the outer tank 31 is provided with a recessed water inlet area 310, and the bottom of the middle tank 32 is connected to the water inlet area 310. The inner tank 33 is fitted inside the middle tank 32 and is used to hold the food to be washed. The bottom of the inner tank 33 is provided with a drain hole 331 that is connected to the middle tank 32. The bottom of the inner tank 33 is also provided with an aeration channel 332 and bubble holes 333 that can be connected to the supply system. The number of bubble holes 333 should not be too large, as too many bubble holes 333 will reduce the uniformity and strength of bubble formation. The aeration channel 332 is connected to the supply system through an air guide pipe 4 that passes through the bottom of the middle tank 32 and the water inlet area 310. The above structure allows the gas channel and water channel to be independent of each other and not affect each other's operation. At the same time, the inlet and outlet water can be used to flush the outer periphery of the gas guide pipe 4 to avoid the accumulation of residue. Bubbling is used to perform turbulent cleaning of the water inlet area 310 to avoid the accumulation of residue. That is, the combination of the outer, middle and inner tanks and their coordination with the water channel and gas channel avoids the local accumulation of residue before and after cleaning.

[0056] The bottom of the outer tank 31 is also provided with a drain outlet 314, which allows water overflowing from the top of the inner tank 33 into the outer tank 31 to be drained into the water tank 1. The water inlet area 310 is located in the center of the bottom of the outer tank 31. The bottom wall of the outer tank 31 forms a slope that gradually extends downward from the water inlet area 310 to both ends of the outer tank 31. The side wall of the outer tank 31 above the bottom wall forms an arc-shaped side wall with a bowl or flat bottom structure. The drain outlet 314 is provided at the junction of the arc-shaped side wall and the bottom wall of the outer tank 31 to improve the drainage effect under the guiding effect of the slope and the arc-shaped side wall. The bottom wall of the outer tank 31 is provided with a drain groove 315 that extends and is recessed along the width direction of the outer tank 31 near both ends. The bottom of the drain groove 315 has multiple drain outlets 314. When the amount of water overflowing from the inner tank 33 into the outer tank 31 is large, the drain groove 315 can improve the guidance and drainage effect of the overflow, and prevent water from accumulating in other areas of the bottom of the outer tank 31. In addition, the drain groove 315 protrudes below the bottom of the outer tank 31 and is flush with the interface connected to the supply system, and can also be used as a support for the food washing tank.

[0057] The water inlet area 310 at the bottom of the outer tank 31 is square, but it can be designed in other shapes as needed. A slot 316 extending towards the water inlet area 310 is provided on the side wall of the outer tank 31. An air inlet 312 and a water outlet 313, both communicating with the water inlet area 310, are respectively provided at the inner end of the slot 316. A connector 5 is provided in the slot 316. The connector 5 has a gas channel 51 and a water flow channel 52. The gas channel 51 and water flow channel 52 at the inner end of the connector 5 are connected to the air inlet 312 and the water outlet 313, respectively. The gas channel 51 and water flow channel 52 at the outer end of the connector 5 are connected to the corresponding ports of the supply system. This connector 5 facilitates the detachable connection of the air inlet 312 and the water outlet 313 to the supply system. At the outer ends of the air inlet 312 and the water outlet 313, there are plug-in sleeves 300. Correspondingly, the inner end of the plug-in 5 is inserted into the corresponding plug-in sleeve 300, and a sealing ring is provided between the mating surfaces of the two to improve the sealing effect.

[0058] The side wall of the water tank 1 has a notch 13, which exposes the side of the supply system in the water tank 1. The side of the supply system has a first opening 001 corresponding to the air inlet 312 and a second opening 002 corresponding to the water outlet 313. The outer end of the connector 5 is provided with a sealing element 6 that can seal the gas passage 51 and water flow passage 52 with the corresponding first opening 001 and second opening 002.

[0059] The middle tank 32 is used to introduce washing water. The inner bottom wall of the outer tank 31 is provided with a sealing gasket 321 at the periphery of the water inlet area 310. The bottom of the middle tank 32 has an opening 320 corresponding to the water inlet area 310. The edge of the opening forms a mating part that can abut against the sealing gasket 321. The inner edge of the mating part can also be bent downward and located at the inner side wall of the sealing gasket 321 to improve the sealing performance, so that the water in the water inlet area 310 enters the middle tank 32 upward, and prevents the water in the water inlet area 310 from entering the outer tank 31 through the bottom of the middle tank 32 and the bottom of the outer tank 31.

[0060] A filter plate 7 is installed at the bottom of the intermediate tank 32, covering its opening. The edge of the filter plate 7 forms a support rim 71 that rests on the connecting part. The filter plate 7 sinks down at the top opening of the corresponding water inlet area 310, thus covering the top opening of the water inlet area 310. This filter plate 7 filters out large debris and sediment, preventing them from entering the water inlet area 310. Of course, a small amount of fine debris and sediment will inevitably enter the water inlet area 310; in this case, the intermediate tank 32 can be removed and cleaned later.

[0061] The air guide pipe 4 is roughly L-shaped, with its horizontal portion positioned in the water inlet area 310. The end of the horizontal portion is inserted into the air inlet 312. The L-shaped structure is fixed to the bottom wall of the water inlet area 310 with screws. Its vertical portion passes through the filter plate 7, with its upper end positioned above the filter plate 7. The bottom wall of the inner tank 33 has an assembly port 334 for the upper end of the vertical portion to pass through and extend into the aeration channel 332. After assembly, the outer surface of the vertical portion matches the inner edge of the assembly port 334 without leakage. An end cap 41 is provided at the upper end of the vertical portion, and a guide cone 42 with its tip pointing downwards, corresponding to the incoming air portion in the vertical portion, is provided on the lower surface of the end cap 41. This structure facilitates gas supply and diversion, reducing gas flow loss.

[0062] After the inner groove 33 is fitted into the middle groove 32, the top edge of the inner groove 33 extends outward to form a support edge, which is placed on the top edge of the middle groove 32 to limit the position of the inner groove 33.

[0063] After the inner tank 33 is removed from the middle tank 32, the middle tank 32 and the outer tank 31 cooperate to form a small ordinary water tank. From a top view, the filter plate 7 and the outer tank form an integrated filter structure, which is easy to clean. The water inlet area 310 can then form a drainage area. Water can be directly discharged to the sewer pipe through the drainage area and the drain pipe, which is convenient to use. The side walls of the inner tank 33 and its corresponding middle tank 32 are provided with overflow holes 335 and 325 near the top. These overflow holes 335 and 325 guide the overflow water to the middle tank 32 for backflow, or into the outer tank 31, and then discharge it into the water tank 1 through the overflow port at the bottom of the outer tank 31.

[0064] The aeration channel 332 includes multiple interconnected horizontal and vertical arms. The upper surface of the bottom wall of the inner trough 33 is provided with a number of bubble holes 333 corresponding to the aeration channel 332. The diameter of the bubble holes 333 can be equal or unequal. Preferably, the diameter of the bubble holes at specific locations is unequal to meet more aeration needs.

[0065] The first installation module 21 of the supply system is installed on the left or right side wall of the water tank 1. A second installation module 22, connected to the inlet of the supply system, is also installed on the rear side wall of the water tank 1. The second installation module 22 contains a fan 221, a micro / nano bubble water generator 222, and a drain valve pump 223 arranged from top to bottom. The fan 221 is installed upside down with its outlet connected to the air inlet 312 of the air inlet pipe to prevent water backflow from damaging the fan 221. The fan can be installed at the highest point below the faucet. The front end of the micro / nano bubble water generator 222 is connected to the water inlet valve, and the rear end is connected to the input end of the water inlet pipe, providing micro / nano bubble water to the food washing tank 10. The inlet of the drain valve pump 223 is connected to the output end of the drain pipe, and the outlet of the drain valve pump 223 is located at its top and connected to a suspended drain pipe 220. Due to space and cost constraints, this device does not include a drain valve. Instead, water is stored in the tank via a drain pipe suspended at the rear of the drain valve pump. The maximum liquid level in the tank is determined by the height of the drain pipe. When the liquid level exceeds this height, overflow occurs. However, due to structural obstructions from the drain valve pump, the overflow flow rate is typically less than the inlet flow rate. To prevent backflow into the fan pipe in case of excessive water intake or high liquid levels, an overflow hole is designed within the tank. The overflow hole is higher than the drain pipe's height but lower than the fan pipe's height. Controlling the overflow via the drain pipe also prevents users from mistakenly believing the food washing tank is leaking, thus improving the user experience.

[0066] This embodiment incorporates a food cleaning tank within a large-volume water tank, capable of automatic food cleaning and temporary aquatic product holding. The food cleaning tank can slide back and forth within the water tank. When temporary holding of aquatic products is required, the food cleaning tank is moved within the water tank to connect with the water supply system. The aquatic products are then placed in the food cleaning tank, and water and air are supplied through the system for temporary holding. During this process, the temperature, turbidity, and oxygen content of the holding water can be monitored and adjusted in real time to provide the optimal aquaculture environment and maintain the aquatic products' freshness for an extended period. When the temporary holding function is not needed, the food cleaning tank can also automatically clean the food. It is moved within the water tank to connect with the water supply system, and water is introduced into the tank, creating turbulent flow to clean the food. When only large items need to be washed, the food cleaning tank can be removed from the water tank, providing a large cleaning space to meet user needs. This invention meets a variety of customer needs, providing automatic cleaning and aquatic holding functions without affecting the independent usable volume of the water tank.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A method for temporarily holding aquatic products using a washing machine, the washing machine comprising a water tank and a food washing tank detachably disposed in the water tank, characterized in that: The outer wall of the water tank is provided with a supply system for supplying water and air to the food washing tank and can be connected or disconnected from the food washing tank. The water supply channel of the supply system is connected to a micro-nano bubble generator. The bottom of the food washing tank is provided with an aeration structure connected to the air supply channel of the supply system. With the food washing tank connected to the supply system, aquatic products are placed in the food washing tank. Micro-nano bubble water is introduced into the food washing tank to the set water level through the micro-nano bubble generator to increase the oxygen content in the water. Then, the aeration structure maintains a low-frequency aeration state in the food washing tank to maintain the oxygen content in the water.

2. The aquatic temporary holding method of the cleaning machine according to claim 1, characterized in that: The supply system is equipped with an oxygen content sensor, a temperature sensor, a heating module, and a turbidity sensor at the water inlet and air inlet. These sensors are used to detect the dissolved oxygen content, water temperature, and turbidity in the food washing tank in real time, and to adjust the water temperature, control whether to change the water, and whether to replenish the air based on the detected parameters.

3. The aquatic temporary holding method of the cleaning machine according to claim 2, characterized in that: The aforementioned aquatic temporary holding method is Move the food washing tank in the sink to connect with the supply system; Users place aquatic products into the food washing tank and select the water level and holding time according to the type and quantity of aquatic products. Turn on the micro-nano bubble generator and input micro-nano bubble water into the food washing tank through the supply system. After the water intake reaches the set value, stop the micro-nano bubble generator and stop the water intake; turn on the aeration structure and maintain a low-frequency aeration state. The oxygen content sensor monitors the oxygen content 'a' in the water in real time, and the temperature sensor monitors the water temperature 't' in real time. When the water temperature 't' is detected to be lower than the set value, the heating module is turned on until the water temperature meets the requirements. When the oxygen content 'a' in the water is detected to be lower than the set value, the air supply is increased, and the aeration structure replenishes air to the food washing tank in a gentle bubbling manner to avoid generating loud noise. If the oxygen content 'a' in the water is still lower than the set value after a certain period of time, the air supply is further increased, and the aeration structure replenishes air to the food washing tank in a vigorous bubbling manner. When the oxygen content 'a' in the water reaches the set value, the air replenishment is stopped, and the aeration structure maintains a low-frequency aeration state. When the water intake is complete, the turbidity sensor records a turbidity value S. During the temporary holding process, the turbidity sensor monitors the turbidity s of the water in real time. When the turbidity of the water is significantly higher than the initial value, and the difference reaches M, that is, Ss>M, it is determined that the aquatic organisms are purging sand or excrement, and the water is turbid. The automatic water intake and drainage program is then started. After the water exchange is completed, the next turbidity judgment program is started. This cycle continues to keep the water clean.

4. The aquatic temporary holding method of the cleaning machine according to claim 3, characterized in that: The supply system is also equipped with a cooling module. When the water temperature t is detected to be higher than the set value, the cooling module is turned on until the water temperature meets the requirements.

5. The aquatic temporary holding method using a cleaning machine according to any one of claims 1 to 4, characterized in that: The supply system is a first installation module that integrates water supply, gas supply and drainage structures. The first installation module is flat and arranged close to the outer wall of the water tank.

6. The aquatic temporary holding method of the cleaning machine according to claim 5, characterized in that: The side wall of the food washing tank is provided with an air inlet and a water outlet arranged side by side near the bottom. The supply system is provided with an air inlet pipe connected to the air inlet, a water inlet pipe connected to the water outlet, and a drain pipe.

7. The aquatic temporary holding method of the cleaning machine according to claim 6, characterized in that: The air intake pipe has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The water inlet pipe is located below the air intake pipe and has an inverted bowl-shaped, V-shaped, U-shaped, or L-shaped structure. The drain pipe is located below the water inlet pipe and extends laterally downward along the water flow direction.

8. The aquatic temporary holding method of the cleaning machine according to claim 6, characterized in that: The food washing tank includes an outer tank, a middle tank, and an inner tank. The middle tank is fitted inside the outer tank. The bottom of the outer tank has a recessed water inlet area, and the bottom of the middle tank is connected to this water inlet area. The inner tank is fitted inside the middle tank and is used to hold the food to be washed. The bottom of the inner tank has a drain hole connected to the middle tank. The bottom of the inner tank also has an aeration channel and a bubble hole that can be connected to the supply system. The aeration channel is connected to the supply system through an air guide pipe that passes through the bottom of the middle tank and the water inlet area.

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