A rice washing device with spiral guide plates

Abstract

The utility model relates to rice processing technical field especially a rice washing device with spiral guide plate, including: washing cavity, spiral guide component, separation component, backwater component and support component. The spiral guide plate is equipped in the washing cavity, and the vortex water flow is formed through the driving of pivot, and the washing effect is strengthened, the separation component removes impurity with screen cloth and scraper, the backwater component realizes water resource recycling through the water collecting tank and filter backwater pipe, and the support component adjusts device height and levelness, in the prior art, the rice is usually washed by one-way water flow, and the washing effect is relatively poor, compared with prior art, the application can improve washing cleaning efficiency, reduce water resource waste, reduce equipment complexity and maintenance cost, and satisfy efficient energy -conserving demand.

Description

Technical Field

[0001] This utility model relates to the field of rice processing technology, and in particular to a rice washing device with a spiral guide plate. Background Technology

[0002] While existing rice washing devices effectively free rice from tedious manual washing through mechanization and can complete basic cleaning tasks, their design principles still have obvious limitations. Currently, most such devices rely on a water pump to generate a continuous and fixed-direction water flow to rinse the rice in the container as a whole. This unidirectional, linear rinsing mode, while efficient at removing lighter, suspended bran and some impurities, is inadequate for removing dust, starch, and trace contaminants that are tightly attached to the fine grooves, wrinkles, and even damaged areas on the rice grain surface. The water flow passes through the rice layer along a pre-set single trajectory, preventing the rice grains from being fully and evenly agitated. Some areas of rice grains are subjected to excessive water pressure, while other areas easily form slow-flowing or even stagnant "hydraulic dead zones," resulting in a significant uneven cleaning effect and hindering the improvement of the overall performance of the device.

[0003] The reason this unidirectional rinsing method results in poor surface rinsing of rice is fundamentally because it cannot simulate the dynamic process of multi-angle, repeated rubbing during hand washing. In practice, the unidirectional water flow acts like an invisible ribbon, only pushing the rice grains in one direction, lacking the complex fluid dynamics effects that create intense friction and tumbling between the grains. The various surfaces of the rice grains cannot be alternately and fully exposed to the direct impact of the water flow, especially some concave surfaces, which may remain constantly shaded by neighboring grains. Utility Model Content

[0004] In view of the technical problems of the prior art, this utility model provides a rice washing device with a spiral guide plate.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A rice washing device with a spiral guide plate includes: a washing chamber, a spiral guide assembly, a separation assembly, and a water return assembly; the washing chamber is cylindrical; a washing space is formed inside the washing chamber; an inlet is formed at one end of the washing chamber, and an outlet is formed at the other end; drainage holes for connecting the washing space with the outside are formed on the side wall of the washing chamber; a bottom plate is provided at the bottom of the washing chamber; the bottom plate is inclined from the inlet to the outlet; the spiral guide assembly includes a guide plate and a rotating shaft; the guide plate is spirally arranged along the inner wall of the washing chamber; the outer edge of the guide plate is fixedly connected to the inner wall of the washing chamber; the inner edge of the guide plate is fixedly connected to the rotating shaft; the rotating shaft is arranged circumferentially along the washing chamber; one end of the rotating shaft is rotatably connected to the washing chamber through a bearing.

[0007] Furthermore, the guide plate has a rectangular cross-section; the inner edge of the guide plate is fixedly connected to the rotating shaft; the outer edge of the guide plate is fixedly connected to the inner wall of the washing chamber by bolts; the guide plate is provided with raised strips; the raised strips are arranged along the length direction of the guide plate; the cross-section of the raised strips is semi-circular.

[0008] Furthermore, it also includes a separation component; the separation component includes a screen and a scraper; the screen is arc-shaped; both ends of the screen are fixedly connected to the inner wall of the washing chamber; the screen is set below the guide plate and has a gap between it and the guide plate; the scraper is slidably set on the surface of the screen; one end of the scraper is hinged to the side wall of the washing chamber through a connecting rod, and the other end is elastically connected to the side wall of the washing chamber through a spring.

[0009] Furthermore, the surface of the screen has multiple screen holes; the diameter of the screen holes gradually decreases from the feed inlet to the discharge outlet; both ends of the screen are fixedly connected to the inner wall of the washing chamber by buckles; the buckles are evenly distributed along the circumference of the screen.

[0010] Furthermore, the scraper surface is provided with bristles; the bristles are made of flexible material; the length of the bristles gradually increases from one end of the scraper to the other end; a slider is also provided at the bottom of the scraper; the slider is slidably embedded in the groove of the screen.

[0011] Furthermore, it also includes a water return assembly; the water return assembly includes a water collection tank and a water return pipe; the water collection tank is fixedly installed at the bottom of the washing chamber; the open end of the water collection tank faces upward and is connected to the drain hole; one end of the water return pipe is connected to the bottom of the water collection tank, and the other end extends to the top of the washing chamber and is connected to the washing space; a filter is installed inside the water return pipe.

[0012] Furthermore, a drain outlet is provided at the bottom of the water collection tank; a manual valve is fixedly installed at the drain outlet.

[0013] Furthermore, a flow regulating valve is installed in the middle of the return water pipe; flanges are installed at both ends of the flow regulating valve; the flow regulating valve is connected to the return water pipe through the flanges.

[0014] Furthermore, it also includes a support assembly; the support assembly includes a bracket and an adjusting foot; the bracket is fixedly installed at the bottom of the washing chamber; the bottom of the bracket is connected to the adjusting foot by threads.

[0015] Furthermore, the number of supports is greater than three; the supports are evenly distributed along the circumference of the washing chamber; and the number of adjusting feet is equal to the number of supports.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention improves cleaning efficiency by incorporating a spiral flow guide component, which uses the spiral structure of the guide plate to guide the water flow into a vortex, enhancing the rinsing effect on the rice surface. A separation component, using a screen and scraper, separates and removes impurities, preventing their accumulation in the washing chamber. A water return component, utilizing a collection tank and return pipe, recycles water resources, reducing waste. A support component, using a bracket and adjustable feet, ensures stable operation by adjusting the height and level. These combined techniques effectively address the problems of incomplete cleaning, low water utilization, and insufficient washing uniformity in existing technologies. Attached Figure Description

[0018] Figure 1 : Top view of the overall structure of a rice washing device with a spiral guide plate.

[0019] Figure 2 A top-view structural diagram of a rice washing device with a spiral guide plate.

[0020] Figure 3 : Internal structural diagram of a rice washing device with a spiral guide plate.

[0021] In the diagram: 1. Washing chamber; 11. Inlet; 12. Outlet; 13. Drain hole; 14. Base plate; 2. Spiral guide assembly; 21. Guide plate; 211. Raised strip; 22. Rotating shaft; 3. Separation assembly; 31. Screen; 311. Buckle; 32. Scraper; 321. Brush bristles; 322. Sliding block; 4. Water return assembly; 41. Water collection tank; 411. Drain; 42. Water return pipe; 421. Flow regulating valve; 5. Support assembly; 51. Bracket; 52. Adjusting foot. Detailed Implementation

[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0023] A rice washing device with a spiral guide plate includes: a washing chamber 1, a spiral guide assembly 2, a separation assembly 3, a water return assembly 4, and a support assembly 5. The washing chamber 1 has a cylindrical structure, forming a washing space inside to accommodate rice and water for washing. One end of the washing chamber 1 has an inlet 11, and the other end has an outlet 12, located at opposite ends to facilitate rice input and output. Multiple drainage holes 13 are evenly distributed on the sidewalls of the washing chamber 1 and communicate with the internal washing space to drain wastewater generated during the washing process. The bottom of the washing chamber 1 is provided with an inclined bottom plate 14. The bottom plate 14 gradually slopes downward from the feed inlet 11 to the discharge outlet 12, with an inclination angle of 3° to 5°, so as to ensure that the impurities generated during the washing process can slide along the bottom plate 14 and concentrate in the discharge outlet 12 area, thereby facilitating subsequent cleaning.

[0024] The spiral guide assembly 2 includes a guide plate 21 and a rotating shaft 22. The guide plate 21 is spirally arranged along the inner wall of the washing chamber 1, with its outer edge fixed to the inner wall of the washing chamber 1 by bolts, and its inner edge fixed to the rotating shaft 22 by welding. The rotating shaft 22 is arranged axially along the washing chamber 1, with one end mounted on the washing chamber 1 via a bearing, and the other end connected to the drive mechanism via a coupling. The drive mechanism can be a manual crank or a gear transmission assembly, installed outside the washing chamber 1, for driving the rotating shaft 22 to rotate. As shown in the figure, the cross-sectional shape of the guide plate 21 is rectangular, and its surface is provided with multiple raised strips 211. The raised strips 211 are arranged along the length direction of the guide plate 21, and their cross-section is semi-circular. The setting of the raised strips 211 increases the disturbance effect of the water flow, causing the water flow to form a vortex flow in the washing chamber 1, thereby enhancing the rinsing effect on the surface of the rice.

[0025] The separation component 3 includes a screen 31 and a scraper 32. The screen 31 is arranged in an arc shape, and its two ends are fixed to the inner wall of the washing chamber 1 by buckles 311. There are no fewer than four buckles 311, and they are evenly distributed along the circumference of the screen 31. The screen 31 is located below the guide plate 21 and forms a gap with the guide plate 21 to ensure that the water flow can pass through the screen 31 smoothly. The surface of the screen 31 is provided with multiple screen holes, and the diameter of the screen holes gradually decreases from the feed inlet 11 to the discharge outlet 12. The design of the screen holes can effectively separate mud and sand and impurities generated during the washing process. The scraper 32 is slidably mounted on the surface of the screen 31. One end of the scraper is hinged to the side wall of the washing chamber 1 by a connecting rod, and the other end is elastically connected to the side wall of the washing chamber 1 by a spring. The scraper 32 has flexible bristles 321 on its surface. The flexible bristles 321 are made of wear-resistant rubber, and their length gradually increases from one end of the scraper 32 to the other end to adapt to the arc-shaped structure of the screen 31. A slider 322 is provided at the bottom of the scraper 32. The slider 322 is embedded in the groove of the screen 31. The slider 322 and the groove are lubricated with grease to reduce friction, so that the scraper 32 can slide back and forth along the surface of the screen 31 under the impact of water flow, thereby removing impurities from the screen 31.

[0026] The water return assembly 4 includes a water collection tank 41 and a water return pipe 42. The water collection tank 41 is fixedly installed at the bottom of the washing chamber 1, with its opening facing upwards and connected to a drain hole 13 on the side wall of the washing chamber 1. A drain outlet 411 is provided at the bottom of the water collection tank 41, and a manual valve is installed on the drain outlet 411. The manual valve is controlled to open and close by a handle to discharge sewage from the water collection tank 41. The inner wall of the water collection tank 41 is provided with an anti-corrosion coating, and the thickness of the anti-corrosion coating is evenly distributed to extend the service life of the water collection tank 41. One end of the water return pipe 42 is sealed and connected to the bottom of the water collection tank 41, and the other end extends to the top of the washing chamber 1 and is connected to the washing space inside the washing chamber 1. A filter and a flow regulating valve 421 are installed in the middle of the water return pipe 42. The filter has a multi-layer filter structure, and the mesh size of the filter gradually increases from the inlet end to the outlet end, which is used to filter impurities carried in the return water step by step. The flow regulating valve 421 is controlled by a handwheel, and its two ends are sealed to the return water pipe 42 through flanges to regulate the amount of water returning to the washing chamber 1.

[0027] The support assembly 5 includes brackets 51 and adjusting feet 52. Brackets 51 are fixedly installed at the bottom of the washing chamber 1, with no fewer than three brackets evenly distributed along the circumference of the washing chamber 1. The number of adjusting feet 52 is the same as the number of brackets 51. The adjusting feet 52 are connected to the brackets 51 by threads, and the height and level of the washing chamber 1 can be adjusted by rotating the adjusting feet 52. The bottom of the adjusting feet 52 is provided with anti-slip pads made of rubber to enhance the stability of the device.

[0028] In actual operation, the rice to be washed is first fed into the washing chamber 1 through the feed inlet 11. Simultaneously, the drive mechanism is activated, causing the rotating shaft 22 to rotate. The rotation of the shaft 22 causes the guide plate 21 to rotate synchronously. The spiral arrangement of the guide plate 21 guides the water flow into a vortex within the washing chamber 1, creating a strong scouring effect on the rice surface, thus removing mud and impurities. Wastewater generated during washing flows into the collection tank 41 through the drain holes 13 on the side wall of the washing chamber 1. After being filtered through a series of filters, the clean water flows back into the washing chamber 1 through the return pipe 42, achieving water recycling. The screen 31 is used to intercept mud and impurities generated during washing. The scraper 32 slides back and forth along the surface of the screen 31 under the impact of the water flow, removing impurities from the screen 31 and preventing impurity accumulation from affecting the washing effect. After rinsing, open the discharge port 12 to take out the rinsed rice, and at the same time discharge the sewage in the water collection tank 41 through the drain port 411.

[0029] In the above embodiments, the connection relationships, positional relationships, and mutual cooperation relationships between the components are all rationally designed to ensure that the device can efficiently complete the rice washing task. The washing chamber 1, spiral guide assembly 2, separation assembly 3, water return assembly 4, and support assembly 5 work together to solve the problems of incomplete cleaning, low water resource utilization, and insufficient washing uniformity in the prior art.

[0030] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0031] First, the rice to be washed is fed into the washing chamber 1 through the feed inlet 11. At this time, the rice slides to the middle area of ​​the washing chamber 1 under the influence of gravity. The drive mechanism is activated, driving the rotating shaft 22 to rotate via the coupling. The rotation of the shaft 22 synchronously drives the guide plate 21 to rotate. Since the guide plate 21 is arranged in a spiral shape and has multiple raised strips 211 on its surface, when the guide plate 21 rotates, the water flow is guided to form a vortex-like flow. This vortex-like flow not only enhances the scouring effect of the water flow on the surface of the rice but also ensures that the rice is evenly distributed within the washing chamber 1, avoiding the problem of uneven water flow in certain areas. Simultaneously, the semi-circular cross-sectional design of the raised strips 211 further increases the turbulence effect of the water flow, thereby improving washing efficiency.

[0032] As the washing process proceeds, the water carries mud, sand, and impurities downwards. When these impurities pass through screen 31, the screen openings intercept them. The diameter of the screen openings gradually decreases from the inlet 11 to the outlet 12, a design that ensures impurities of different particle sizes can be separated step-by-step. The screen 31 is arranged in an arc shape with a gap between it and the guide plate 21, ensuring smooth water flow while preventing impurity accumulation that could affect the washing effect. During this process, the scraper 32 slides back and forth along the surface of the screen 31 under the impact of the water flow. The slider 322 at the bottom of the scraper 32 is embedded in the groove of the screen 31, and lubrication reduces friction, allowing the scraper 32 to move stably. The flexible bristles 321 on the surface of the scraper 32 are made of wear-resistant rubber, with their length gradually increasing from one end to the other to accommodate the arc-shaped structure of the screen 31. The flexible bristles 321 remove impurities from the screen 31 during sliding, preventing screen clogging and thus maintaining the continuity and efficiency of the washing process.

[0033] Wastewater generated during the washing process flows into the collection tank 41 through the drain hole 13 on the side wall of the washing chamber 1. The collection tank 41 is fixedly installed at the bottom of the washing chamber 1, with its opening facing upwards and connected to the drain hole 13 to ensure smooth collection of wastewater. The inner wall of the collection tank 41 is coated with an anti-corrosion coating, effectively extending the service life of the collection tank 41. After entering the collection tank 41, the wastewater undergoes step-by-step filtration through the filter in the return water pipe 42. The filter adopts a multi-layer filter structure, with the mesh size gradually increasing from the inlet to the outlet, removing fine impurities from the wastewater step by step. The filtered clean water flows back into the washing chamber 1 through the return water pipe 42, realizing the recycling of water resources. The flow regulating valve 421 is controlled by a handwheel, which can adjust the amount of water returning to the washing chamber 1 according to actual needs, thereby optimizing the washing effect and saving water resources.

[0034] After rinsing, the rice is removed from the discharge port 12. Simultaneously, wastewater from the collection tank 41 is discharged through the drain port 411. A manual valve is installed on the drain port 411, which is easily opened and closed by a handle. The inclined base plate 14 at the bottom of the rinsing chamber 1 allows impurities to concentrate in the discharge port 12 area during rinsing, facilitating subsequent cleaning. Furthermore, the brackets 51 and adjusting feet 52 in the support assembly 5 ensure the stability of the device. The brackets 51 are evenly distributed around the circumference of the rinsing chamber 1, with no fewer than three brackets. The adjusting feet 52 are threaded to the brackets 51, allowing adjustment of the height and level of the rinsing chamber 1 by rotation. The bottom of the adjusting feet 52 is equipped with anti-slip pads made of rubber, further enhancing the stability of the device.

[0035] During the above operation, all components work together to ensure efficient completion of the rinsing task. The spiral guide assembly 2 guides the water flow to form a vortex flow through the rotation of the guide plate 21, enhancing the rinsing effect on the rice surface; the separation assembly 3 effectively separates and removes impurities through the cooperation of the screen 31 and the scraper 32; the water return assembly 4 achieves water recycling through the design of the water collection tank 41 and the water return pipe 42; and the support assembly 5 ensures the stability of the device operation through the adjustment of the bracket 51 and the adjusting feet 52. These technical means together solve the problems of incomplete cleaning, low water utilization rate, and insufficient rinsing uniformity in the existing technology.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A rice washing device with a spiral guide plate, characterized in that: include: Washing chamber, spiral guide assembly, separation assembly, and return water assembly; The washing chamber is cylindrical; The washing chamber has a washing space inside; The washing chamber has a feed inlet at one end and a discharge outlet at the other end; The side wall of the washing chamber is provided with a drainage hole for connecting the washing space with the outside; The bottom of the washing chamber is provided with a base plate; The bottom plate is inclined from the inlet to the outlet; The spiral flow guide assembly includes a flow guide plate and a rotating shaft; The guide plate is spirally arranged along the inner wall of the washing cavity; The outer edge of the guide plate is fixedly connected to the inner wall of the washing chamber; The inner edge of the guide plate is fixedly connected to the rotating shaft; The rotating shaft is arranged along the axial direction of the washing chamber; One end of the rotating shaft is rotatably connected to the washing chamber via a bearing.

2. The rice washing device with a spiral guide plate according to claim 1, characterized in that: The cross-section of the guide plate is rectangular; The inner edge of the guide plate is fixedly connected to the rotating shaft; The outer edge of the guide plate is fixedly connected to the inner wall of the washing chamber by bolts; The guide plate is provided with raised strips; The raised strip is arranged along the length direction of the guide plate; The cross-section of the raised strip is semi-circular.

3. The rice washing device with a spiral guide plate according to claim 1, characterized in that: It also includes separate components; The separation components include a screen and a scraper; The screen is arc-shaped; Both ends of the screen are fixedly connected to the inner wall of the washing chamber; The screen is positioned below the guide plate and has a gap between it and the guide plate; The scraper is slidably disposed on the surface of the screen; One end of the scraper is hinged to the side wall of the washing chamber via a connecting rod, and the other end is elastically connected to the side wall of the washing chamber via a spring.

4. A rice washing device with a spiral guide plate according to claim 3, characterized in that: The surface of the sieve has multiple sieve holes; The diameter of the sieve holes gradually decreases from the feed inlet to the discharge outlet; The two ends of the screen are fixedly connected to the inner wall of the washing chamber by snap fasteners; The buckles are evenly arranged along the circumference of the screen.

5. A rice washing device with a spiral guide plate according to claim 3, characterized in that: The surface of the scraper is provided with bristles; The bristles are made of a flexible material; The length of the bristles gradually increases from one end of the scraper to the other end; The bottom of the scraper is also provided with a slider; The slider is slidably embedded in the groove of the screen.

6. A rice washing device with a spiral guide plate according to claim 1, characterized in that: It also includes a water return system; The water return assembly includes a water collection tank and a water return pipe; The water collection tank is fixedly installed at the bottom of the washing chamber; The opening end of the water collection tank faces upward and is connected to the drain hole; One end of the return water pipe is connected to the bottom of the water collection tank, and the other end extends to the top of the washing chamber and is connected to the washing space. A filter is installed inside the return water pipe.

7. A rice washing device with a spiral guide plate according to claim 6, characterized in that: The bottom of the water collection tank is provided with a drain outlet; The sewage outlet is equipped with a fixed manual valve.

8. A rice washing device with a spiral guide plate according to claim 6, characterized in that: A flow regulating valve is installed in the middle of the return water pipe; The flow regulating valve is provided with flanges at both ends; The flow regulating valve is connected to the return water pipe via the flange.

9. A rice washing device with a spiral guide plate according to claim 1, characterized in that: It also includes support components; The support assembly includes a bracket and adjustable feet; The bracket is fixedly installed at the bottom of the washing chamber; The bottom of the bracket is connected to the adjusting foot via threads.

10. A rice washing device with a spiral guide plate according to claim 9, characterized in that: The number of supports is greater than three; The supports are evenly arranged along the circumference of the washing cavity; The number of adjusting feet is equal to the number of brackets.

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