Intelligent fruit and vegetable multi-stage cleaning equipment and cleaning method

Abstract

The present invention relates to an intelligent fruit and vegetable multi-stage cleaning device and a cleaning method, comprising an outer basket and an inner basket which are sleeved with each other, a stirrer is arranged at the middle position of the bottom of the inner basket for cleaning the fruits and vegetables in the inner basket, a lifting mechanism is arranged between the inner basket and the outer basket, a filter is arranged at the bottom of the inner basket, a water pump is arranged inside the filter, a water spraying tube is connected to the water outlet of the water pump, a water inlet and outlet structure is arranged on the same side of the inner basket and the filter, after the fruits and vegetables in the inner basket are cleaned by the stirrer, the inner basket is lifted by the lifting mechanism, and the water in the inner basket flows into the filter along the water inlet and outlet structure for filtering, and the filter can be provided to filter the water mixed with soil in the inner basket and leave the soil in the filter, thereby achieving the purpose of cleaning the soil without causing damage to components in the device.

Description

Technical Field

[0001] The present invention belongs to the technical field of intelligent cleaning equipment, and in particular to an intelligent multi-stage cleaning equipment for fruits and vegetables and a cleaning method. Background Art

[0002] The fruit and vegetable washing machine is a machine used to wash vegetables and fruits. The machine has the functions of food purification, disinfection and sterilization, and air purification.

[0003] The existing fruit and vegetable cleaning equipment has the following problems: the structure of the fruit and vegetable cleaning equipment is generally a cleaning basket, in which a certain amount of water is placed, and the dirt attached to the fruits and vegetables is discharged from the gaps in the basket through stirring, vibration or other methods. However, the dirt will remain inside the equipment and needs to be cleaned regularly. The dirt may also cause damage to the internal components of the equipment. In addition, the dirt attached to certain parts of the fruits and vegetables, such as the depressions of potatoes, cannot meet normal edible standards through simple one-time stirring and cleaning because the dirt adheres to the depressions and has high adhesion strength. Therefore, we propose an intelligent fruit and vegetable multi-stage cleaning equipment and a cleaning method to solve the above problems. Summary of the invention

[0004] Based on this, it is necessary to provide an intelligent multi-stage fruit and vegetable cleaning device that can filter soil and clean away stubborn soil.

[0005] An intelligent multi-stage cleaning device for fruits and vegetables comprises an outer basket and an inner basket which are mutually nested, wherein a stirrer is arranged at the middle position of the bottom of the inner basket for cleaning fruits and vegetables in the inner basket, and is characterized in that a lifting mechanism is also arranged between the inner basket and the outer basket, a filter is also arranged at the bottom of the inner basket, a water pump is arranged inside the filter, a water outlet of the water pump is connected to a water spray barrel, a water inlet and outlet structure is correspondingly arranged on the same side of the inner basket and the filter, after the fruits and vegetables in the inner basket are cleaned by the stirrer, the inner basket is lifted by the lifting mechanism, the water in the inner basket flows into the filter along the water inlet and outlet structure for filtration, and then the filtered water is transferred to the water spray barrel by the water pump to replenish the fruits and vegetables in the inner basket, and the strong water flow sprayed by the water spray barrel impacts the fruits and vegetables upward, a cover plate is arranged along the top of the inner basket, and a plurality of groups of convex points are evenly arranged at the bottom of the cover plate, and the fruits and vegetables contact the convex points of the cover plate upward to perform secondary cleaning of the fruits and vegetables;

[0006] The bottom of the inner basket is also provided with a rotating seat corresponding to the water spray barrel, and the water spray barrel is rotatably connected in the rotating seat. A gear is also fixedly sleeved on the outside of the water spray barrel, and a rack is fixedly installed on the top of the filter corresponding to the gear. The gear and the rack are meshed with each other. When the inner basket is lifted up and down, the water spray barrel is driven to rotate by the gear. An outlet pipe is also provided between the water spray barrel and the water pump, which is used to deliver water filtered by the filter to the water spray barrel.

[0007] Preferably, the lifting mechanism includes a cylinder fixedly mounted on the inner wall of the bottom of the outer basket, and connecting plates are integrally formed on both sides of the inner basket. The telescopic shaft of the cylinder is connected to the connecting plates to drive the inner basket to move up and down in a straight line.

[0008] Preferably, a slide rail is fixedly installed on the inner side wall of the outer basket, and a slider is fixedly installed on the outer side wall of the inner basket corresponding to the slide rail. The slider is installed to slide along the slide rail in a limited manner, and the cross-section of the slider is an I-shaped slider.

[0009] Preferably, the water inlet and outlet structure includes a through hole and an inlet hole opened on the same side of the inner basket and the filter. When the inner basket is raised by the lifting mechanism, the water in the inner basket flows through the through hole into the cavity formed by the filter and the outer basket, and then flows into the filter through the cavity via the inlet hole for filtration. The inlet holes are a group and are located at the upper part of the filter. A drain valve for final drainage is also provided at the bottom of the outer basket.

[0010] Preferably, a first partition is laterally installed on the inner side of the filter, a second partition is vertically installed in the middle of the first partition, and the first partition is also provided with filter holes for filtering soil.

[0011] Preferably, the inner side of the bottom of the inner basket is provided with spray holes corresponding to the water spray barrel, and water flows along the water spray port of the water spray barrel into the spray holes to spray fruits and vegetables, and provide an upward impact force for the fruits and vegetables, so that the fruits and vegetables contact and collide with the convex points of the cover plate.

[0012] Preferably, the cover plate and the protrusions are both made of soft rubber.

[0013] Preferably, a detection sensor for measuring the content of dirt is also provided on the inner side of the inner basket.

[0014] A cleaning method of an intelligent fruit and vegetable multi-stage cleaning device comprises the following steps:

[0015] S1. Place the fruits and vegetables that need to be washed in the inner basket and add appropriate amount of clean water;

[0016] S2, starting the stirrer provided in the inner basket to stir the fruits and vegetables, thereby achieving primary cleaning of impurities on the fruits and vegetables;

[0017] S3, after the first-level cleaning is completed, the PLC controller connected to the detection sensor is started, and the cylinder controlled by the PLC controller drives the inner basket to rise, so that the water in the inner basket flows into the filter, and then enters the water spray barrel through the water pump after being filtered by the filter. The water spray barrel replenishes the filtered water into the inner basket to spray the fruits and vegetables in the inner basket;

[0018] S4, the fruits and vegetables in the inner basket are impacted by the water flow and move upward, hitting the convex points set at the bottom of the cover plate, knocking off the stubborn impurities, and these impurities are dissolved in water, then enter the filter for filtration, and circulate to the inner basket to rinse the fruits and vegetables again until the value detected by the detection sensor set in the inner basket is less than the standard amount, and the cleaning is completed, and the water flow is discharged through the drain valve set at the bottom of the outer basket;

[0019] S5. If the detected value is always greater than the standard value, the detection sensor will feed back the signal to the PLC controller, and the PLC controller will repeat the above steps to continue washing the fruits and vegetables until they meet the standard value requirements.

[0020] Technical effects and advantages of the present invention:

[0021] 1. A turbidity detection sensor is provided to detect the turbidity in the water. By connecting with the PLC controller, the control device is controlled to wash the fruits and vegetables according to the established program, thereby achieving the purpose of automatic cleaning;

[0022] 2. By providing a filter, the water mixed with mud in the inner basket can be filtered and the mud can be left in the filter, thereby achieving the purpose of cleaning the mud without causing damage to the components in the equipment;

[0023] 3. By providing a water spray barrel and a spray hole, the water sprayed from the spray hole can flush the fruits and vegetables upward, contact and collide with the convex points of the upper cover plate, and remove the stubborn dirt on the fruits and vegetables;

[0024] 4. By setting up a gear rack, the water spray barrel can be driven to rotate and the water spray angle can be changed, so that fruits and vegetables can be washed from different angles and the washing intensity can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the state of the intelligent fruit and vegetable multi-stage cleaning equipment spraying fruits and vegetables in the inner basket;

[0026] Figure 2 This is a schematic diagram of the state of the intelligent fruit and vegetable multi-stage cleaning equipment impacting the inner basket of fruits and vegetables;

[0027] Figure 3 It is a schematic diagram of the connection structure between the water spray barrel, the gear and the rack;

[0028] Figure 4 It is a schematic diagram of the connection structure between the water spray barrel and the water pump.

[0029] Figure 5 It is a schematic diagram of the connection structure between the slider and the slide rail.

[0030] Figure 6 Schematic diagram of the internal structure of the inner basket and filter.

[0031] In the figure: 1, outer basket; 12, slide rail; 2, cylinder; 3, inner basket; 31, through hole; 32, agitator; 33, rotating seat; 34, injection hole; 35, slider; 36, cover plate; 37, bump; 38, connecting plate; 4, filter; 41, entry hole; 42, first partition; 43, filter hole; 44, second partition; 5, water pump; 6, water spray gun; 61, gear; 62, rack; 7, detection sensor; 8, drain valve. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] like Figure 1-6 As shown, the present invention is described in detail in the following embodiments:

[0036] Embodiment: An intelligent multi-stage cleaning device for fruits and vegetables comprises an outer basket 1 and an inner basket 3. The inner basket 3 is mainly used to hold fruits and vegetables for cleaning. An agitator 32 is arranged along the bottom of the inner basket 3. The agitator 32 provides a first-stage cleaning for the multi-stage cleaning device. Specifically, fruits and vegetables are placed in the basket, and after adding a proper amount of clean water, the agitator 32 is started to drive the water flow to stir and clean the sludge and other impurities on the surface of the fruits and vegetables.

[0037] After the first level of cleaning, the surface of fruits and vegetables needs to be cleaned at the second level;

[0038] like Figure 1As shown, a lifting structure is also provided between the inner basket 3 and the outer basket 1, and the lifting structure includes a cylinder 2 provided at the inner wall of the bottom of the outer basket 1, and a connecting plate 38 is fixedly provided along the top side of the inner basket 3, which is used to be fixedly connected to the telescopic shaft of the cylinder 2, so that the inner basket 3 can be raised or lowered. In addition, in order to limit the position, as shown in FIG. Figure 4 As shown, a slider 35 is fixedly provided on the front and rear side walls of the inner basket 3, and a slide rail 12 is correspondingly fixedly provided along the inner wall of the outer basket 1, wherein the cross section of the slider 35 is an I-shaped to prevent the possibility of separation;

[0039] In order to ensure that water resources are not wasted, a water tank is provided at the bottom of the inner basket 3. Figure 1 The filter 4 shown is used to filter out large particles of impurities such as soil in the cement mixture in the inner basket 3. After the filtering is completed, the water is discharged back into the inner basket 3 through the discharge port of the filter 4. The filter 4 includes an inlet hole 41 opened on the side. The inlet holes 41 are in a row and are located in the upper position of the filter 4. The side of the same side of the inner basket 3 and the inlet hole 41 are provided with a through hole 31 for water discharge. The filter 4 also includes a first partition 42 arranged in the middle position. A filtering hole 43 is opened on one side of the first partition 42. A second partition 44 is also integrally formed between the first partition 42 and the top inner wall of the filter 4. A accommodating cavity is formed between the first partition 42 and the second partition 44 for placing a water pump 5. A water spraying tube 6 is also connected to the water outlet of the water pump 5 to suck water from the filter 4 and then spray it into the inner basket 3 for secondary cleaning of fruits and vegetables in the inner basket 3.

[0040] Furthermore, in order to ensure tightness, the width of the filter 4 is consistent with the inner width of the outer basket 1;

[0041] During operation, after the first-level cleaning is completed, the fruits and vegetables in the inner basket 3 need to be cleaned at the second level. First, the cylinder 2 is started, and the telescopic shaft of the cylinder 2 drives the connecting plate 38 to be lifted upward, so that the water in the inner basket 3 flows out through the through hole 31 and is concentrated in the cavity formed by the filter 4 and the outer basket 1. In order to ensure the filtering effect, it is necessary to rely on the water pump 5 to generate a water flow direction from the inlet hole 41 to the filter hole 43. Since the radius of the filter hole 43 is smaller than the radius of large particles of sediment, and also smaller than the radius of the inlet hole 41, large particles such as sediment are retained in the filter 4 to complete the filtration. After the inner basket 3 is raised, the water will flow along the through hole 31 into the cavity formed by the filter 4 and the outer basket 1, and flow from the cavity to the inlet hole 41. In addition, the applied water flow Direction, guide the water flow through the filter hole 43 to flow into the cavity formed by the first partition 42 and the second partition 44, the water inlet of the water pump 5 draws water from the cavity, and then sends it into the water spray tube 6 along the water outlet of the water pump 5, and then the water is sent back to the inner basket 3 through the water spray tube 6, and the reciprocating cycle is repeated many times to filter out the mud and sand brought out from the inner basket 3. Because of the direction of the water flow guided by the water pump 5, the mud and sand will not flow back from the inlet hole 41. In addition, since the inlet hole 41 is located at the upper part of the filter 4, and the mud and sand generally sink to the bottom of the water due to its characteristics, the backflow problem of the mud and sand is also avoided, so that it is concentrated in the filter 4 and will not affect the components inside the cleaning equipment. The filter 4 is a detachable structure and can be removed from the outer basket 1 for regular cleaning;

[0042] A water spray barrel 6 is also provided, such as Figure 2 As shown, a rotating seat 33 is provided along the outer wall of the bottom of the inner basket 3 for rotatably connecting the water spray barrel 6. A gear 61 is fixedly sleeved on the outer side of the water spray barrel 6, and a rack 62 is correspondingly fixedly installed along the top of the filter 4. When the inner basket 3 moves up and down, the gear 61 rotates along the rack 62, thereby driving the water spray barrel 6 to rotate, as shown in FIG. Figure 3 As shown, a water outlet hole is provided on the peripheral side of the water spray barrel 6 for discharging water, and a water outlet pipe is provided between the water spray barrel 6 and the water pump 5, as shown in FIG. Figure 5 As mentioned above, a spray hole 34 is opened at the bottom of the inner basket 3 corresponding to the water spray tube 6;

[0043] During operation, the cylinder 2 drives the inner basket 3 to move up and down, and the moving distance should not be too large. The gear 61 rotates along the rack 62, driving the water spray barrel 6 to rotate in the rotating seat 33, and water is sprayed out along the water outlet hole opened on the water spray barrel 6. Since the water spray barrel 6 is in the process of rotation, the angle of the water flow sprayed out from the water outlet hole is different. The water flow is sprayed out from the spray hole 34 opened at the bottom of the inner basket 3 to spray the fruits and vegetables contained in the inner basket 3, thereby washing the fruits and vegetables again, improving the washing intensity. The water flow sprayed on the fruits and vegetables is a weak water flow, and the fruits and vegetables can be washed from different directions;

[0044] The water column sprayed from the spray hole 34 has a certain impact force, which can improve the cleaning strength. Secondly, for some impurities stubbornly attached to the surface of fruits and vegetables, the stirring force formed by the stirrer 32 is not enough to remove these impurities. Therefore, a cover plate 36 is hinged on the top of the inner basket 3, and the inner wall at the bottom of the cover plate 36 is not provided with a convex point 37;

[0045] During operation, the strong water column ejected from the ejection hole 34 impacts the fruits and vegetables upward, so that the fruits and vegetables can hit the convex point 37 of the cover plate 36, such as Figure 2 As shown, taking potatoes as an example of the flushing working state, in order to ensure that the appearance and surface of fruits and vegetables will not be damaged, the protrusions 37 and the cover plate 36 are made of soft rubber. The strong water column impacts the potatoes upward, so that the potatoes are moved upward by the impact force of the water column and hit on the protrusions 37. Because the cover plate 36 and the protrusions 37 are both made of soft rubber, when impacting upward, the point where the cover plate 36 is impacted is depressed, and the contact between the potato and the cover plate 36 changes from point contact to surface contact, so that more protrusions 37 contact the soil in the grooves on the surface of the potato, increasing the probability of removing the soil in the depressions. Through continuous and multiple impacts, the soil in the depressions of the potatoes is knocked down, and then cleaned by the water column, and then flows out along the through holes 31 of the inner basket 3 to the cavity formed by the filter 4 and the outer basket 1, and is filtered again to achieve efficient cleaning of fruits and vegetables. After the cleaning is completed, as shown in Figure 1 As shown, a drain valve 8 is also provided at the bottom of the outer basket 1. After completion, the drain valve 8 is opened to allow the water to be discharged along the outlet of the drain valve 8.

[0046] A cleaning method of an intelligent fruit and vegetable multi-stage cleaning device comprises the following steps:

[0047] S1. Place the fruits and vegetables to be washed in the inner basket 3 and add an appropriate amount of clean water;

[0048] S2, start the agitator 32 provided in the inner basket 3 to agitate the fruits and vegetables, and achieve primary cleaning of impurities on the fruits and vegetables;

[0049] S3, after the first-level cleaning is completed, the PLC controller connected to the detection sensor 7 is started, and the cylinder 2 controlled by the PLC controller drives the inner basket 3 to rise, so that the water in the inner basket 3 flows into the filter 4, and then enters the water spray barrel 6 through the water pump 5 after being filtered by the filter 4. The water spray barrel 6 replenishes the filtered water into the inner basket 3 to spray the fruits and vegetables in the inner basket 3;

[0050] S4, the fruits and vegetables in the inner basket 3 are impacted by the water flow and move upward, and hit the convex point 37 provided at the bottom of the cover plate 36, so that the stubborn impurities can be knocked off. After these impurities are dissolved in water, they are filtered by the filter 4 and circulated to the inner basket 3, and the fruits and vegetables are rinsed again until the value detected by the detection sensor 7 provided in the inner basket 3 is less than the standard amount, and the cleaning is completed, and the water flow is discharged through the drain valve 8 provided at the bottom of the outer basket 1;

[0051] S5. If the detected value is always greater than the standard value, the detection sensor 7 feeds back the signal to the PLC controller, and the PLC controller repeats the above steps to continue washing the fruits and vegetables until the standard value is met;

[0052] Among them, the detection sensor 7 is a turbidity sensor, which can detect the water quality in the inner basket 3 to see whether there is still excessive turbidity. The detection sensor 7 and the PLC controller are both existing technologies, and their wiring methods and the wiring methods between the PLC controller and other electrical components are also existing technologies. Therefore, their working principles are not repeated in this article.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0054] The above-mentioned embodiments only express several embodiments of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. An intelligent multi-stage fruit and vegetable cleaning device, comprising an outer basket (1) and an inner basket (3) which are arranged in a nested manner, wherein a stirrer (32) is arranged at the middle of the bottom of the inner basket (3) for cleaning fruits and vegetables in the inner basket (3), characterized in that: A lifting mechanism is also provided between the inner basket (3) and the outer basket (1); a filter (4) is also provided at the bottom of the inner basket (3); a water pump (5) is provided inside the filter (4); a water outlet of the water pump (5) is connected to a water spray tube (6); and water inlet and outlet structures are provided on the same side of the inner basket (3) and the filter (4). After the fruits and vegetables in the inner basket (3) are cleaned by the stirrer (32), the inner basket (3) is lifted by the lifting mechanism, and the fruits and vegetables in the inner basket (3) are washed by the stirrer (32). The water flows along the water inlet and outlet structure into the filter (4) for filtration, and then the filtered water is transmitted to the water spray barrel (6) through the water pump (5) to replenish the fruits and vegetables in the inner basket (3), and the strong water flow sprayed by the water spray barrel (6) impacts the fruits and vegetables upwards. A cover plate (36) is arranged along the top of the inner basket (3), and a plurality of groups of convex points (37) are evenly arranged at the bottom of the cover plate (36). The fruits and vegetables contact the convex points (37) of the cover plate (36) upwards to perform secondary cleaning of the fruits and vegetables; The bottom of the inner basket (3) is also provided with a rotating seat (33) corresponding to the water spray barrel (6), and the water spray barrel (6) is rotatably connected to the rotating seat (33). A gear (61) is fixedly sleeved on the outer side of the water spray barrel (6), and a rack (62) is fixedly installed on the top of the filter (4) corresponding to the gear (61). The gear (61) and the rack (62) are meshed with each other. When the inner basket (3) is raised and lowered, the gear (61) drives the water spray barrel (6) to rotate. A water outlet pipe is also provided between the water spray barrel (6) and the water pump (5) for delivering water filtered by the filter (4) to the water spray barrel (6).

2. The intelligent multi-stage fruit and vegetable cleaning device according to claim 1 is characterized in that: The lifting mechanism comprises a cylinder (2) fixedly mounted on the inner wall of the bottom of the outer basket (1); connecting plates (38) are integrally formed on both sides of the inner basket (3); the telescopic shaft of the cylinder (2) and the connecting plates (38) are connected to each other, driving the inner basket (3) to move up and down in a straight line.

3. The intelligent multi-stage fruit and vegetable cleaning device according to claim 2 is characterized in that: The inner side wall of the outer basket (1) is fixedly mounted with a slide rail (12), and the outer side wall of the inner basket (3) is fixedly mounted with a slide block (35) corresponding to the slide rail (12). The slide block (35) is mounted to slide along the slide rail (12) in a limited position, and the cross section of the slide block (35) is an I-shaped block.

4. The intelligent multi-stage fruit and vegetable cleaning device according to claim 3 is characterized in that: The water inlet and outlet structure comprises a through hole (31) and an inlet hole (41) which are provided on the same side of the inner basket (3) and the filter (4). When the inner basket (3) is lifted by the lifting mechanism, the water in the inner basket (3) flows from the through hole (31) into a cavity formed by the filter (4) and the outer basket (1), and then flows through the cavity via the inlet hole (41) into the filter (4) for filtration. The inlet holes (41) are provided in a group and are located at the upper part of the filter (4). A drain valve (8) for final drainage is also provided at the bottom of the outer basket (1).

5. The intelligent multi-stage fruit and vegetable cleaning device according to claim 1 is characterized in that: A first partition (42) is also installed transversely on the inner side of the filter (4), a second partition (44) is also installed vertically in the middle of the first partition (42), and the first partition (42) is also provided with a filtering hole (43) for filtering mud.

6. The intelligent multi-stage fruit and vegetable cleaning device according to claim 1 is characterized in that: The inner side of the bottom of the inner basket (3) and the water spray barrel (6) are also provided with spray holes (34) corresponding to each other, and water flows along the water spray port of the water spray barrel (6) into the spray holes (34) to spray the fruits and vegetables and provide an upward impact force for the fruits and vegetables, so that the fruits and vegetables come into contact and collide with the protrusions (37) of the cover plate (36).

7. The intelligent multi-stage fruit and vegetable cleaning device according to claim 6 is characterized in that: The cover plate (36) and the protrusions (37) are both made of soft rubber.

8. The intelligent multi-stage fruit and vegetable cleaning device according to claim 4 is characterized in that: A detection sensor (7) for measuring the content of dirt is also provided on the inner side of the inner basket (3).

9. A cleaning method according to claim 8, characterized in that: The following steps are involved: S1. Place the fruits and vegetables to be washed in the inner basket (3) and add an appropriate amount of clean water; S2, starting the agitator (32) provided in the inner basket (3) to agitate the fruits and vegetables, thereby achieving primary cleaning of impurities on the fruits and vegetables; S3, after the first-stage cleaning is completed, the PLC controller connected to the detection sensor (7) is started, and the cylinder (2) controlled by the PLC controller drives the inner basket (3) to rise, so that the water in the inner basket (3) flows into the filter (4), and then enters the water spray cylinder (6) through the water pump (5) after being filtered by the filter (4). The water spray cylinder (6) replenishes the filtered water into the inner basket (3) to spray the fruits and vegetables in the inner basket (3); S4, the fruits and vegetables in the inner basket (3) are impacted by the water flow and move upward, hitting the protrusions (37) provided at the bottom of the cover plate (36), knocking off stubborn impurities, and these impurities are dissolved in water, then enter the filter (4) for filtration, and then circulate to the inner basket (3), and the fruits and vegetables are rinsed again until the value detected by the detection sensor (7) provided in the inner basket (3) is less than the standard amount, and the cleaning is completed, and the water flow is discharged through the drain valve (8) provided at the bottom of the outer basket (1); S5. If the detected value is always greater than the standard value, the detection sensor (7) feeds back the signal to the PLC controller, and the PLC controller repeats the above steps to continue washing the fruits and vegetables until the standard value is met.

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