Vegetable washing machine

Abstract

The invention discloses a vegetable washing machine which comprises a water tank used for washing vegetables, and a washing water guide plate is arranged in the water tank and divides the water tank into a washing chamber and a residue collecting chamber. The cleaning water guide plate comprises a water guide area and a residue filtering area, and no hole is formed in the surface of the water guide area which is used for guiding water flow to form stable vortex; the residue filtering area is provided with an open hole communicated with the cleaning chamber and the residue collecting chamber, and directional migration of residues is achieved. The water guide plate adopts a volute section line scheme, the vortex strength is enhanced through a spiral water flow path, and residues are separated from the cleaning chamber to the residue collecting chamber through centrifugal force. Through the synergistic effect of the partition water guide plate and the volute structure, the problems that a traditional vegetable washing machine is not thorough in residue separation and low in cleaning efficiency are solved, meanwhile, the dynamic characteristics of water flow are optimized, and the automatic cleaning effect is improved.

Description

Technical Field

[0001] The term kitchen equipment for washing food according to the present invention particularly relates to equipment for washing raw food. Background Art

[0002] Commercial vegetable washers are becoming an essential tool for kitchen cleaning. However, existing vegetable washers still have many shortcomings in terms of residue handling and water flow. Common water flow schemes often use linear or simple circulation patterns, which make it difficult to form efficient vortexes. This allows residue to accumulate in the washing chamber, compromising cleaning performance and increasing energy consumption.

[0003] Some existing technologies attempt to separate debris through filters, but these filters are prone to clogging and incomplete cleaning. This is especially true when processing leafy vegetables, where fine debris easily adheres to the filter, requiring repeated disassembly and cleaning. Other solutions, while incorporating diversion structures, lack optimized solutions for hydrodynamics and are unable to effectively guide the directional movement of debris, resulting in low separation efficiency. Furthermore, existing water guide plates often utilize uniform openings or simple partitioning schemes, making it difficult to balance water flow guidance and debris filtration, limiting the equipment's degree of automation.

[0004] Therefore, in order to solve the above problems, it is necessary to develop a vegetable washing machine solution that can optimize the water flow path, realize automatic separation of residues and has an efficient structure. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention solves the technical problems such as incomplete residue separation and low cleaning efficiency through the water guide plate partitioning scheme and the volute profile line structure, combined with the synergistic effect of the slag collecting chamber and the slag guide plate, and significantly improves the user experience.

[0006] The vegetable washing machine of the present invention includes a sink and a water guide plate disposed therein for cleaning. The water guide plate divides the sink into a cleaning chamber and a residue collection chamber. The water guide plate is divided into a water guide area with no openings on its surface and a residue filter area with openings connecting the two chambers. The water guide area is used to guide the water flow to form a stable vortex, while the residue filter area uses openings to achieve directional migration of residue to the residue collection chamber. The core feature of the water guide plate is the volute profile line, which is mathematically expressed as:

[0007] x(t)=a(t+b)cos(t),y(t)=a(t+b)sin(t)

[0008] Among them, the parameter (t(0,2)) is that when (t) increases from 0 to (2), the curve rotates around the origin once, forming a spiral water flow path. This structure can be designed as an Archimedean square spiral, taking into account both water flow dynamics and space utilization.

[0009] A first and second slag guide plate are installed at the bottom of the cleaning chamber, forming a V-shaped slag collection chamber. The first slag guide plate is located on the descending side of the volute's cross-section, while the second slag guide plate is located on the ascending side. The minimum distance between the second slag guide plate and the volute is smaller than the first slag guide plate, creating a gradient pressure difference that pushes residue toward the collection chamber. Water is ejected from the cleaning water outlet along the volute's cross-section, pushing the water flow within the cleaning chamber into a vertical vortex. As the water swirls downward, residue is drawn into the collection chamber through the openings.

[0010] The slag collection chamber is equipped with a filter plate, whose through-holes further intercept incompletely separated fine residues and prevent them from flowing back into the cleaning chamber. At the same time, the perforated areas in the slag filter area are arranged continuously along the width or length of the water guide plate, alternating with non-perforated areas, ensuring water flow continuity while preventing filter hole clogging.

[0011] The present invention is an improvement over the prior art in that:

[0012] 1. The volute profile design enhances vortex strength through a spiral water flow path, improving the separation efficiency of residue and vegetables;

[0013] 2. The partitioned water guide plate and the functional division of the water pouring area and the residue filtering area realize the dual functions of water flow guidance and residue filtering;

[0014] 3. Dynamic slag discharge structure: The synergistic design of the slag guide plate and the slag collection chamber, combined with the gradient pressure difference, enables automatic collection and cleaning of residues. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the overall structure of the vegetable washing machine of the present invention;

[0016] Figure 2 This is a side cross-sectional structural diagram of the vegetable washing machine of the present invention, illustrating the movement paths of water flow and residue;

[0017] Figure 3 This is a schematic diagram of the structure of the water guide plate of the vegetable washing machine of the present invention, with the perforated and non-perforated areas arranged continuously along the width direction;

[0018] Figure 4 Schematic diagram of the volute section line and water flow direction used in the water guide plate of the present invention;

[0019] Figure 5 This is the cross-sectional line and schematic diagram of the volute used in the water guide plate of the present invention, with the perforated and non-perforated areas continuously arranged along the length direction. DETAILED DESCRIPTION

[0020] The following will describe in detail the components, working principle, manufacturing method, and process flow of the vegetable washing machine 1000 in conjunction with the accompanying drawings to help those skilled in the art understand the technical solution of the present application.

[0021] like Figure 1 and Figure 2 As shown, the vegetable washing machine of the present invention is composed of a water tank 100 with a certain volume, a dehydration barrel 120, a dehydration barrel cover 121, and a vegetable washing machine cover 130. A cleaning water guide plate 110 is provided inside the water tank 100. The water guide plate 110 divides the internal space of the water tank 100 into a cleaning chamber 111 and a residue collection chamber 130, each of which performs different functions. The cleaning chamber 111 is mainly used to place vegetables and leaves to be washed, and cleaning water is provided on its upper part or side. The residue collection chamber 130 is used to collect mud, impurities and other residues that fall off the vegetables during the washing process, and discharge them into the bottom of the residue collection chamber 130 for subsequent cleaning or discharge.

[0022] like Figure 3 As shown, the cleaning water guide plate 110 is composed of two parts: a water guide area 114 and a residue filter area 115. The water guide area 114 has no openings on its surface and primarily serves to guide and concentrate the water flow to form a stable vortex 1141. The residue filter area 115 is provided with openings 116 at appropriate locations that connect to the residue collection chamber 130 to separate and directionally discharge residue from the water flow. Specifically, this water guide plate 110 has a volute section line 121.

[0023] The mathematical model for the volute profile is: x(t) = a(t+b)cos(t), y(t) = a(t+b)sin(t), where the parameters range from (0, 2π). When t ranges from 0 to 2π, the curve rotates once around the origin, forming a spiral shape. a and b are constants, with the constant a controlling the "width" of the spiral. Using an Archimedean square spiral as a water channel ensures a more uniform flow path, optimizes the water flow dynamics, and makes the vortex formed within the cleaning chamber 111 more pronounced, thereby improving separation efficiency. This solution not only ensures uniform water flow distribution along the spiral path but also effectively prevents clogging of the filter holes 116, achieving the dual functions of water flow guidance and debris separation.

[0024] like Figure 3 As shown, the perforated areas are arranged continuously along the width of the water guide plate; the non-perforated areas are arranged continuously along the width of the water guide plate. As the water flows along the volute section line 121, the centrifugal force and gravity acting on each section of the water flow are relatively evenly distributed, facilitating the formation of a continuous vortex structure. The geometric characteristics of the spiral curve 118 determine that after leaving the water guide area 114, the water flow will smoothly transfer along a predetermined path to the filter residue area 115. This continuous and gradual flow trajectory reduces local energy loss, thereby improving cleaning efficiency.

[0025] The spiral water flow path generates a relatively stable vortex 1141 during the kinetic energy conversion process. The centrifugal force of vortex 1141 exerts a greater force on heavier debris, causing it to move from the water guide area 114 to the residue filter area 115. The constants a and b in the formula can be adjusted based on experimental data, ensuring that the spiral structure maintains sufficient water flow velocity while maintaining low hydraulic impact to avoid damage to vegetables. This also facilitates the smooth discharge of debris through the combined effects of gravity and centrifugal force.

[0026] Compared to existing technologies, traditional vegetable washers often use straight or simple circular water paths, often lacking optimized hydrodynamics. This embodiment, however, employs an Archimedean square spiral to enrich the water flow path, creating a distinct vortex and improving the separation efficiency between debris and vegetables. By controlling parameters a and b, customized solutions can be implemented for different vegetable materials and cleaning requirements.

[0027] like Figure 3 and Figure 4 As shown, the above spiral line mainly enhances the vortex in three aspects.

[0028] First, the velocity field and centrifugal force are strengthened, and the Archimedean spiral can strengthen the centrifugal effect.

[0029] For v x , v y The total speed is

[0030]

[0031] Based on the resultant velocity and the assumed radius r, the centrifugal acceleration is

[0032]

[0033] From the above formula, it can be seen that the centrifugal acceleration consists of two parts. The first is the linear growth term a(t+b), which dominates the centrifugal force in the large radius area 1142 and continuously pushes the residue to migrate outward (along the direction indicated by the number 1143). The second is the attenuation term. Significantly enhance the centrifugal force in the initial stage (when t is small), improving the separation efficiency of fine residues

[0034] Secondly, the dynamic pressure gradient of the Archimedean spiral, due to the spiral involute characteristics, its radius r(t) = a(t+b) linearly expands with the angle, forming a non-uniform flow channel. Its centrifugal acceleration is The dynamic pressure gradient corresponding to the Archimedean spiral is: The pressure distribution obtained by integrating the dynamic pressure gradient is: For the quadratic term Its function is to drive the water flow from the outer high-pressure area to migrate to the filter residue area. For several items ln(t+b), its function is to optimize the initial pressure distribution and reduce energy loss.

[0035] Thirdly, the Coriolis effect of the Archimedean spiral works synergistically, and its radial velocity component Then the corresponding Coriolis acceleration is Because of its Coriolis force, the constant Coriolis force pushes the residue to accelerate in the tangential direction, inhibits circumferential retention, and cooperates with the centrifugal force to form a stable spiral migration path, making it easier to separate the residue from the cleaning water.

[0036] The water guide plate after the above-mentioned Archimedean spiral optimization scheme has the following technical advantages over the existing technology: 1. The nonlinear distribution of the centrifugal force field can quickly separate tiny residues due to the high centrifugal acceleration at the initial stage due to the small radius. The linear growth term a(t+b) in the later stage can maintain the continuous migration of large-particle residues. Experiments show that when a=1mm / rad and b=0.2, the initial centrifugal acceleration reaches 5a, which is 2.3 times that of the traditional circular path. 2. The self-consistent pressure gradient pressure distribution can reduce energy loss compared to the linear pressure attenuation of the traditional circular path. 3. The synergy of the Coriolis effect and spiral expansion, the constant radial velocity forms a stable secondary flow to suppress the backflow of residues and increase the separation speed.

[0037] In a preferred embodiment, if Figure 5 The water guide area 114 and the filter residue area 115 shown can be arranged continuously along the length direction of the water guide plate to adapt to the spatial layout requirements and water flow speed control needs in different occasions.

[0038] In a preferred embodiment, to better achieve the dual requirements of water flow guidance and residue filtration, this embodiment provides alternating perforated and non-perforated areas on the surface of the water guide plate 110. The structure of the cleaning water guide plate 110 includes a water guide area 114 and a residue filtration area 115.

[0039] In a preferred embodiment, one of the water guide areas and the filter residue area is arranged in a transverse direction, the first part is a filter residue area 125 arranged transversely, the second part is a filter residue area 115 attached to the first part, and the third part is a filter residue area 115 attached to the second part.

[0040] In a preferred embodiment, the non-porous surface of water-conducting region 114 is closed, without any openings. Its primary function is to guide the original water flow into cleaning chamber 111, where it forms a stable vortex through inertia. By properly designing the shape and position of water-conducting region 114, the water flow can evenly cover the entire cleaning chamber 111 and drive the movement of debris.

[0041] In a preferred embodiment, another portion of the porous area of ​​the filter residue region 115 is provided with small holes or openings 116 for residue discharge. These openings 116 allow the fine residue that has been screened to enter the residue collection chamber 130 under the guidance of the water flow. The openings 116 are arranged in a continuous manner, which not only ensures the continuity of the water flow but also, to a certain extent, prevents the problem of residue being dispersed due to excessive water flow.

[0042] The perforated filter residue area 115 is continuously distributed along the width or length of the water guide plate, forming a continuous filter residue structure. Its distribution area is 1 / 3 of the total area, and the perforated area is 1 / 5 of the total width. This ensures the continuity of the water flow while allowing fine residue to pass smoothly, while also preventing the residue from being dispersed by excessively large apertures 116 due to excessively fast water flow.

[0043] The non-perforated water-conducting area 114, corresponding to the perforated residue-filtering area 115, remains closed and has no openings. This area primarily serves to enhance water flow guidance, ensuring continuous rotation of the water flow within the water-conducting area 114. The alternating layout of the water-conducting area 114 and the residue-filtering area 115 not only acts as a segmentation mechanism but also creates localized flow velocity differences, enabling directional discharge of residue through localized pressure differences.

[0044] This optimized configuration not only improves the clogging problem of traditional filter screens, but also effectively balances the needs of water flow continuity and residue discharge.

[0045] Reference Figure 2 Inside the water tank 100, the cleaning chamber 111 and the slag collection chamber 130 are effectively separated by the cleaning water guide plate 110. To further improve the efficiency of residue collection, this embodiment provides a first slag guide plate 128 and a second slag guide plate 129 at the bottom of the cleaning chamber 111. The two plates have a V-shaped structure and together form a slag collection chamber 130.

[0046] The first slag guide plate 128 is positioned on the descending side 1211 of the volute section line 121. It collects larger debris that settles to the lower portion due to centrifugal force. While positioned relatively high, it forms a first inclination angle a with the overall structure of the water guide plate 110, ranging from 30° to 55°, ensuring smooth flow of debris along the plate surface.

[0047] The second slag guide plate 129 is positioned on the rising side 1212 of the volute section line 121. Its closest distance to the volute section line 121 is less than the distance between the first slag guide plate 128 and the section line. The second slag guide plate 129 has a second inclination angle b ranging from 20° to 30°. This creates a localized pressure gradient in fluid dynamics, making it easier for the water flow to pass through the slag collection chamber 130 during rotation, carrying smaller debris into the chamber.

[0048] The design and arrangement of the two residue guide plates 128 and 129 fully consider the gravity, centrifugal force and hydrodynamic balance issues, so that the residue can be smoothly separated along the local water pressure gradient during the cleaning process and concentrated in the residue collecting chamber 130, reducing the negative impact of residue accumulation on the vegetable re-washing effect.

[0049] The slag collection chamber 130 is composed of a first slag guide plate 128 and a second slag guide plate 129. Its bottom is smooth and tilted at a certain angle to facilitate subsequent cleaning. Furthermore, a first filter plate 131 and a second filter plate 132 are added to the bottom of the slag collection chamber 130. Each filter plate 131 and 132 is provided with multiple through-holes. These through-holes also function as a connection between the cleaning chamber 111 and the slag collection chamber 130, effectively intercepting fine residue that fails to pass through the main water guide plate 110, thereby preventing it from flowing back into the cleaning chamber 111. The filter plates 131 and 132, together with the water guide plate 110 and the slag guide plates 128 and 129, form a multi-stage filtration structure, significantly improving the cleaning efficiency of the entire system while also reducing the frequency of system maintenance.

[0050] A wash water outlet 140 is provided within the wash chamber 111. Its position and direction of discharge ensure that the wash water flows parallel to the volute section line 121 on the water guide plate 110. This arrangement of wash water outlet 140 parallel to the volute section line 121 allows the water to flow along a predetermined spiral path after exiting. This ensures that the water forms a stable rotational pattern within the water guide area 114, providing continuous power for the subsequent automatic discharge of residue into the slag collection chamber 130.

[0051] Since the water outlet direction is consistent with the volute section line 121, large-scale turbulence of the water flow at the intersection is avoided, thereby ensuring that the water flow in the entire cleaning chamber 111 always moves along a predetermined path, effectively preventing vegetables from being damaged or mixed with excessive impurities due to unstable water flow during the cleaning process.

[0052] The optimized solution not only saves water resources, but also reduces the energy loss caused by water turbulence to a certain extent, making the equipment operation more energy-efficient.

[0053] Based on the above-described structure, this embodiment fully utilizes the vertical rotation effect generated by water flowing along the direction extending from the volute section line 121, forming a distinct vortex in the water flow within the cleaning chamber 111. During this process, after the water is ejected from the cleaning chamber, it moves along the closed surface of the water guide area 114, gradually guided by the volute section line 121 to form a continuously rotating vortex.

[0054] Due to the centrifugal force of the water flow within the vortex, the heavier debris is automatically pushed toward the residue area 115 and into the residue collection chamber 130 through the openings 116 in the residue area 115. The pressure gradient created by the water's rotation and the change in local flow velocity cause the lighter water to separate from the heavier debris under the action of centrifugal force. In particular, the continuous openings 116 in the residue area 115 utilize this pressure differential to automatically draw fine debris into the residue collection chamber 130.

[0055] At the same time, the gradient pressure created by the first and second slag guide plates 128, 129 further collects the residue, thereby achieving automatic slag discharge. According to the model formulas x(t) = a(t+b)cos(t) and y(t) = a(t+b)sin(t), the water flow has a predetermined velocity and streamline before entering the residue filter area 115. This spiral water flow evenly distributes kinetic energy, ensuring both efficient cleaning and optimal residue separation.

[0056] Experimental data show that when parameters a and b take appropriate values, the centrifugal acceleration of the water flow is balanced with gravity and frictional resistance, and the residue can be effectively captured at the center of the vortex.

[0057] When implementing this technical solution, attention should be paid to the following process and material selection requirements to ensure that the device maintains excellent performance during long-term and frequent use.

[0058] Rust-resistant, corrosion-resistant, and easy-to-clean stainless steel or high-quality plastic materials are used. Stainless steel is particularly strong, corrosion-resistant, and easy to treat. This ensures the mechanical strength of the water tank 100, water guide plate 110, first slag guide plate 128, second slag guide plate 129, slag collecting chamber 130, and other components while preventing rust and scaling during long-term use.

[0059] During the production of the water guide plate 110, CNC punching, laser cutting and other technologies should be used to ensure that the size, spacing and continuity of the holes 116 in the punching area 115 meet the requirements of the plan, so as to avoid excessive or irregular hole diameters due to poor workmanship, thereby affecting the water flow separation effect.

[0060] The installation position and angle of the slag guide plates 128, 129 and the filter plates 131, 132, as well as their distance from the water guide plate 110, must all be precisely measured. In particular, the minimum distance between the second slag guide plate 129 and the volute section line 121 should be determined using high-precision measurement tools to ensure the ideal local pressure gradient and enable automated slag removal.

[0061] To adapt to different cleaning objects and water quality conditions, the water outlet 140 is adjustable, allowing precise control of the water's kinetic energy by adjusting the water pressure and flow rate. This solution not only improves cleaning efficiency but also offers significant advantages in energy conservation and environmental protection.

[0062] To facilitate understanding of the specific implementation process of the present invention, the following is an illustration of the actual application process:

[0063] Preparation before starting the device

[0064] The user places the vegetables to be washed in the washing chamber 111. Before starting the machine, the user should check the water level in the water tank 100 to ensure sufficient fresh water is supplied and to ensure that all control switches and the slag discharge device 170 are in normal operation. Because the water guide plate 110 and the filter plate 131 are made of high-efficiency, corrosion-resistant materials, they ensure hygienic requirements and structural stability, both during initial cleaning and long-term operation.

[0065] Automatic water flow formation stage

[0066] When the user activates the device, wash water is ejected from the regulated outlet 140, guided by the volute section line 121 into the water-conducting area 114. Within this area, the water flow, constrained by the imperforate closed surface, converges to form a vortex. Simultaneously, the centrifugal force of the water flow gradually causes debris to disperse outward. However, the combined effects of the outer edge of the water-conducting area 114 and the residue area 115 continuously transport the debris toward this area.

[0067] During the debris separation and discharge phase, when the water enters the residue filter area 115, the continuously arranged openings within allow the finer debris in the water to pass through the openings and enter the residue collection chamber 130 below. Simultaneously, due to the gradient design of the residue guide plates 128 and 129, the water creates a significant local pressure difference during its rotation, causing the debris to automatically slide down the slope of the guide plates and into the residue collection chamber 130. During this process, the filter plates 131 further function, filtering out any tiny debris that remains undischarged, ensuring that the water in the cleaning chamber 111 remains clean at all times.

[0068] Continuous circulation and cleaning completion

[0069] During operation, the water circulates continuously. After a complete vortexing, filtering, and slag removal process, a large amount of separated debris accumulates in the slag chamber 130. The water flow in the washing chamber 111 maintains a highly uniform vortex state, thoroughly cleaning the vegetables. After the washing process is complete, the user can remove the debris from the slag chamber 130 through the device's automatic slag removal device 170 or manually, completing the entire vegetable washing process.

[0070] Equipment cleaning and maintenance

[0071] To ensure long-term, efficient operation of the equipment, the water guide plate 110, filter plate 131, and slag guide plates 128 and 129 can be simply cleaned after use. Because the components in this embodiment have smooth surfaces and compact structures, even tiny debris adhering to the surfaces can be completely removed by simply rinsing with running water. The overall structure of the equipment is simple and easy to disassemble, facilitating routine maintenance and regular cleaning.

[0072] Compared with the prior art, this embodiment has the following significant technical advancements:

[0073] Traditional vegetable washers rely on simple circular or linear water flow, but the present invention utilizes an Archimedean square spiral to direct water flow along the volute section line 121, thereby forming a stable vortex structure. This vortex not only improves the efficiency of water energy utilization but also facilitates the removal and separation of residue from the vegetable surface, achieving a more efficient and thorough cleaning effect.

[0074] This embodiment forms a multi-stage filtration system between the water guide plate 110, the filter plate 131, and the residue guide plates 128 and 129. This system not only solves the problem of easy clogging of traditional filter screens, but also ensures at multiple levels that residue does not flow back into the cleaning chamber 111. The rational division of the residue filter area and the water guide area allows the residue to be separated and collected layer by layer from heavy to light under the action of water flow dynamics, realizing automated residue discharge and greatly improving ease of use and equipment stability.

[0075] The smaller minimum distance between the second slag guide plate 129 and the volute section line 121 creates a larger pressure gradient locally, allowing residue in the cleaning chamber 111 to automatically move toward the slag collection chamber 130 during the water flow rotation. Compared to existing slag removal methods that rely solely on gravity settling or simple vibration, this solution is not only more efficient, but also reduces energy consumption and mechanical wear, resulting in significant economic and environmental benefits.

[0076] By mathematically translating the water flow trajectory and introducing the formulas x(t) = a(t + b) cos(t) and y(t) = a(t + b) sin(t) to describe it, this embodiment theoretically achieves quantitative control of water kinetic energy, centrifugal acceleration, and residue separation efficiency. Developers can optimize water flow performance under different operating conditions by adjusting parameters a and b, as well as the arrangement density and aperture size of the perforated areas 124.

[0077] Thanks to its multi-stage separation and automatic diversion scheme, this vegetable washer can automatically remove residue during use, eliminating manual intervention and frequent maintenance. During continuous operation, residue is continuously discharged into the residue collection chamber 130 and discharged through the timed residue discharge device 170, ensuring the efficiency of the cleaning process and extending the service life of the equipment.

Claims

1. A vegetable washing machine, characterized in that include: a sink for washing vegetables; A cleaning water guide plate is provided in the water tank, and the water guide plate divides the water tank into a cleaning chamber and a slag collection chamber; The cleaning water guide plate includes a water guide area and a filter residue area, wherein: The surface of the water-conducting area has no openings; The filter residue area is provided with an opening communicating with the cleaning chamber and the residue collecting chamber; The water guide plate has a volute section line.

2. The vegetable washing machine according to claim 1, characterized in that: The volute section line includes at least one perforated area and at least one non-perforated area, wherein: The perforated areas are continuously arranged along the width direction of the water guide plate; The non-perforated areas are continuously arranged along the width direction of the water guide plate.

3. The vegetable washing machine according to claim 1, characterized in that: The volute section line includes at least one perforated area and at least one non-perforated area, wherein: The perforated areas are arranged continuously along the length direction of the water guide plate; The non-perforated areas are continuously arranged along the length direction of the water guide plate.

4. The vegetable washing machine according to claim 1, characterized in that: The volute section line satisfies the expression: x(t)=a(t+b)cos(t), y(t)=a(t+b)sin(t), where: t is a parameter with a value range of (0t); (a) and (b) are constants; when (t) increases from 0 to (2π), the curve rotates around the origin.

5. The vegetable washing machine according to claim 1, characterized in that: A first slag guide plate and a second slag guide plate are provided at the bottom of the cleaning chamber, and the two form a slag collecting chamber; the residue discharged from the opening enters the slag collecting chamber through the first slag guide plate and the second slag guide plate.

6. The vegetable washing machine according to claim 5, characterized in that: The first slag guide plate is located on the side where the volute section line descends; the second slag guide plate is located on the side where the volute section line ascends; the minimum distance between the second slag guide plate and the volute section line is smaller than the minimum distance between the first slag guide plate and the volute section line.

7. The vegetable washing machine according to claim 5, characterized in that: The slag collecting chamber further includes a filter plate arranged at the bottom of the water guide plate.

8. The vegetable washing machine according to claim 5, characterized in that: A cleaning water outlet is provided inside the cleaning chamber, and the water outlet direction of the outlet is parallel to the section line of the volute.

9. The vegetable washing machine according to claim 1, characterized in that: The cleaning water flows along the extending direction of the volute, and generates vertical rotation in the cleaning chamber, so that the residue is brought into the residue collecting chamber when the water rotates downward.

10. The vegetable washing machine according to any one of claims 1 to 9, characterized in that: The volute is an Archimedean square spiral.

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