Cleaning device for primary agricultural products

Abstract

The cleaning device for the primary agricultural products comprises a cleaning tank and a support, the cleaning tank is arranged at the position, close to the top end, of the inner side of the support, and the support is stably placed on the ground; a filtering assembly is arranged at the position, close to the bottom, of the inner wall of the cleaning tank, a water purifying assembly is arranged at the bottom of the cleaning tank, and the water purifying assembly comprises a butt joint pipe fitting, a purifying box body, a pump body, a mounting plate and a water tank body. According to the utility model, the filter assembly and the water purification assembly are arranged, during operation, water after cleaning is preliminarily filtered through the filter assembly, particles are filtered, then the preliminarily filtered water reaches the water purification assembly to be finely filtered, the water is purified, and the purified water enters the water tank body to be stored; and the problem that water resources are wasted due to the fact that cleaning water is directly discharged in the existing cereal agricultural product cleaning process is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of agricultural product cleaning devices, and in particular to a cleaning device for primary agricultural products. Background Technology

[0002] With economic development, people's pursuit of a better life is increasing, and the demand for agricultural products is growing, which has led to the vigorous development of agricultural products. Agricultural products refer to edible or industrial raw materials obtained through production methods such as agriculture, animal husbandry, and fisheries, including grains, vegetables, fruits, meat, dairy products, fiber crops, and forest products.

[0003] After harvesting, many agricultural products have a lot of soil on their surface when the grains are picked from the soil. Therefore, they need to be washed by washing equipment. The washing process consumes a lot of clean water, and the washed water is usually discharged directly. This direct discharge causes water waste, which is not advisable in areas where water resources are scarce.

[0004] Therefore, how to provide a cleaning device for primary agricultural products is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a cleaning device for primary agricultural products, which solves the problem of water waste caused by the direct discharge of cleaning water in existing grain and agricultural product cleaning processes.

[0006] A primary agricultural product cleaning device according to an embodiment of the present invention includes a cleaning tank and a support. The cleaning tank is located on the inner side of the support near the top, and the support is stably placed on the ground. A filter assembly is provided on the inner wall of the cleaning tank near the bottom, and a water purification assembly is provided at the bottom of the cleaning tank. The water purification assembly includes a connecting pipe, a purification chamber, a pump body, a mounting plate, and a water tank. The mounting plate is horizontally fixedly connected to the inner side of the support and located directly below the cleaning tank. The purification chamber is fixedly connected to the upper surface of the mounting plate. The connecting pipe is located on the top of the purification chamber, and the other end of the connecting pipe is threaded to the outlet at the bottom of the cleaning tank. The water tank is located on the top of the inner wall of the support and directly below the mounting plate. The pump body is located on the top of the mounting plate, offset from the purification chamber. One end of the pump body is fixedly connected to and communicates with the purification chamber. The output pipe of the pump body passes through the mounting plate and extends from the top of the water tank to the interior of the water tank.

[0007] The filter assembly includes an installation groove, a filter plate assembly, an outer sealing plate, a docking plate, and a docking component. The installation groove is located on the inner wall of the cleaning tank near the bottom, and one side of the installation groove extends to the outside of the cleaning tank, aligning the surface of the cleaning tank with the installation groove. The filter plate assembly is movably inserted into the interior of the installation groove. The inner side of the outer sealing plate is fixedly connected to the end face of the filter plate assembly. The curvature of the outer sealing plate matches the curvature of the surface of the cleaning tank. The outer sealing plate fits tightly against the surface of the cleaning tank at the opening of the installation groove. The docking plate is fixedly connected to the side of the cleaning tank near the outer sealing plate. The docking component is located on the side lug of the outer sealing plate, and the outer sealing plate is movably engaged with the docking plate through the docking component.

[0008] The filter plate assembly includes a coarse filter plate, a fine filter plate, and a limiting ring. The coarse filter plate and the fine filter plate are movably inserted into the inside of the mounting groove, with the coarse filter plate located directly above the fine filter plate. There are two sets of limiting rings, which are fixedly connected to the top of the coarse filter plate and the fine filter plate, respectively. The end faces of the coarse filter plate and the fine filter plate are fixedly connected to the inner side of the outer sealing plate.

[0009] The docking assembly includes an extrusion bevel, an extrusion plate, a threaded hole, and a docking bolt. The extrusion bevels are respectively formed on the opposite sides of the extrusion plate and the docking plate. The extrusion plate is movably connected to the side of the side lug on the docking plate and the outer sealing plate. The extrusion bevel on the extrusion plate fits against the extrusion bevel on the docking plate. The threaded hole is formed on the side of the side lug on the outer sealing plate. The docking bolt is set on the extrusion plate. One end of the docking bolt is threadedly connected to the threaded hole. The docking bolt is a hand-tightening bolt.

[0010] The outer sealing plate has guide holes symmetrically opened on the side of the upper ear with the threaded hole as the axis of symmetry. A guide rod is movably connected inside the guide hole, and one end of the guide rod is fixedly connected to the inner side of the extrusion plate.

[0011] The connecting pipe fitting includes a fixed pipe, a piston pipe, a telescopic pipe, and a threaded connecting pipe. The fixed pipe is fixedly connected to the top of the purification chamber, the piston pipe is movably connected to the inner wall of the fixed pipe, the bottom end of the telescopic pipe is fixedly connected to the top of the piston pipe, and the other end of the telescopic pipe extends to the top of the fixed pipe and is fixedly connected to the threaded connecting pipe. The threaded connecting pipe is threaded onto the outlet at the bottom of the cleaning tank.

[0012] The purification box includes a purification box, an outer fixing plate, a purification filter element, and a snap-fit ​​assembly. The purification box is located on the top of the mounting plate, the purification filter element is located at the bottom of the outer fixing plate, the outer fixing plate is located on the top of the purification box, the bottom end of the purification filter element extends into the interior of the purification box and fits against the inner wall of the purification box, and the snap-fit ​​assembly is located on the side of the purification box near the outer fixing plate and snaps into the top of the outer fixing plate.

[0013] The snap-fit ​​assembly includes a fixed frame, an inner guide groove, a movable clip plate, a clip strip, and a fixing bolt. The fixed frame is fixedly connected to the side of the purification box near the top. The inner guide groove is opened on both sides of the inner wall of the fixed frame. The fixed frame is movably fitted onto the surface of the movable clip plate, and both ends of the movable clip plate are movably connected to the inside of the inner guide groove. The clip strip is fixedly connected to the top of the outer fixed plate near the fixed frame. The movable clip plate is snapped onto the surface of the clip strip. The surface of the fixed frame has a positioning hole, and the fixing bolt is threaded into the positioning hole. One end of the fixing bolt abuts against the surface of the movable clip plate. The top of the water tank is provided with a filling port.

[0014] The purification filter element is a ceramic filter element.

[0015] The beneficial effects of this utility model are:

[0016] By setting up a filtration component and a water purification component, the water after washing undergoes preliminary filtration through the filtration component to remove particles. Then, the pre-filtered water goes to the water purification component for fine filtration to purify the water. The purified water is then stored in a water tank, allowing the washing water to be recycled and reused. This solves the problem of water waste caused by the direct discharge of washing water in the current grain and agricultural product washing process. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cleaning device for primary agricultural products proposed in this utility model.

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the docking component position in the filter assembly of a primary agricultural product cleaning device proposed in this utility model.

[0020] Figure 3 This is a three-dimensional cross-sectional structural diagram of the purification chamber in a primary agricultural product cleaning device proposed in this utility model.

[0021] Figure 4 This is a three-dimensional cross-sectional structural diagram of the water purification component of a primary agricultural product cleaning device proposed in this utility model.

[0022] The attached diagram shows: 1. Cleaning tank; 2. Bracket; 3. Filter assembly; 4. Water purification assembly; 5. Connecting pipe fitting; 6. Purification box; 7. Pump body; 8. Mounting plate; 9. Water tank; 10. Mounting groove; 11. Filter plate assembly; 12. Outer sealing plate; 13. Connecting plate; 14. Connecting assembly; 15. Coarse filter plate; 16. Fine filter plate; 17. Limiting ring; 18. Extrusion bevel; 19. Extrusion plate; 20. Threaded hole; 21. Connecting bolt; 22. Guide hole; 23. Guide rod; 24. Fixing pipe; 25. Piston pipe; 26. Telescopic pipe; 27. Threaded connecting pipe; 28. Purification box; 29. ​​Outer fixing plate; 30. Purification filter element; 31. Snap-fit ​​assembly; 32. Fixing frame; 33. Inner guide groove; 34. Movable clamping plate; 35. Clamping strip; 36. Fixing bolt. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] refer to Figure 1-4 In this embodiment, a washing tank 1 and a support 2 are included. The washing tank 1 is located on the inner side of the support 2 near the top. The support 2 is stably placed on the ground. The washing tank 1 moves on the support 2 to pour out the washed agricultural products. A filter assembly 3 is provided on the inner wall of the washing tank 1 near the bottom for preliminary filtration of the washing water, filtering out larger particles such as mud and sand. The filter assembly 3 includes an installation groove 10, a filter plate assembly 11, an outer sealing plate 12, a docking plate 13, and a docking assembly 14. Figure 3As shown, the mounting groove 10 is located on the inner wall of the cleaning tank 1 near the bottom, and one side of the mounting groove 10 extends to the outside of the cleaning tank 1, aligning the surface of the cleaning tank 1 with the mounting groove 10. The filter plate assembly 11 is movably inserted into the interior of the mounting groove 10. A rubber sealing ring is installed on the side of the filter plate to improve the sealing performance of the filter plate assembly 11, which is prior art and will not be described in detail here. The inner side of the outer sealing plate 12 is fixedly connected to the end face of the filter plate assembly 11. The curvature of the outer sealing plate 12 matches the curvature of the surface of the cleaning tank 1, resulting in a higher fit. To improve the sealing performance, a sealing ring is also provided on the inner side of the outer sealing plate 12 where it fits against the surface of the cleaning tank 1, thus connecting the outer sealing plate 12 with the surface of the cleaning tank 1. The fitting area of ​​the washing tank 1 is sealed. The outer sealing plate 12 is tightly fitted to the surface of the washing tank 1 at the opening of the mounting groove 10. The docking plate 13 is fixedly connected to the side of the washing tank 1 near the outer sealing plate 12. The docking assembly 14 is set on the side ear of the outer sealing plate 12. The outer sealing plate 12 is movably engaged with the docking plate 13 through the docking assembly 14. During installation, the filter plate assembly 11 is inserted into the mounting groove 10 until the outer sealing plate 12 is fitted to the surface of the washing tank 1. At this time, the side ear of the outer sealing plate 12 is close to the docking plate 13. Then, the outer sealing plate 12 is fixed by controlling the docking assembly 14 to dock with the docking plate 13. Then, the washed water is initially filtered through the filter plate assembly 11.

[0025] refer to Figure 1-4 In this embodiment, the filter plate assembly 11 includes a coarse filter plate 15, a fine filter plate 16, and a limiting ring 17. Both the coarse filter plate 15 and the fine filter plate 16 are movably inserted into the mounting groove 10, with the coarse filter plate 15 located directly above the fine filter plate 16. Two sets of limiting rings 17 are fixedly connected to the tops of the coarse filter plate 15 and the fine filter plate 16, respectively. The end faces of the coarse filter plate 15 and the fine filter plate 16 are fixedly connected to the inner side of the outer sealing plate 12. To further subdivide the initial filtration, coarse filter plates 15 and fine filter plates 16 are provided. Figure 3 and Figure 4 The filter is arranged in an upper and lower stacked configuration. After washing, the water passes through the coarse filter plate 15 for coarse filtration, which removes larger particles such as mud and sand. The water then passes through the fine filter plate 16 for fine filtration, which removes smaller particles such as mud and sand, thus achieving a preliminary filtration effect. Of course, the coarse filter plate 15 and the fine filter plate 16 need to be designed according to the actual situation, and the pore size also needs to be designed according to the actual situation. The filter plate assembly 11 is not limited to two layers; this is just an example of a two-layer configuration.

[0026] refer to Figure 1-4In this embodiment, the docking assembly 14 includes an extrusion bevel 18, an extrusion plate 19, a threaded hole 20, and a docking bolt 21. The extrusion bevel 18 is respectively formed on the opposite sides of the extrusion plate 19 and the docking plate 13. The extrusion plate 19 is movably connected to the side of the upper lug of the docking plate 13 and the outer sealing plate 12. The extrusion bevel 18 on the extrusion plate 19 fits against the extrusion bevel 18 on the docking plate 13. The threaded hole 20 is formed on the side of the upper lug of the outer sealing plate 12. The docking bolt 21 is set on the extrusion plate 19, and one end of the docking bolt 21 is threadedly connected to the threaded hole 20. The docking bolt 21 is a hand-tightening bolt. The side of the upper lug of the outer sealing plate 12 is symmetrically provided with guide holes 22 about the threaded hole 20 as the axis of symmetry. A guide rod 23 is movably connected inside the guide hole 22. One end of the guide rod 23 is fixedly connected to the inner side of the extrusion plate 19. When the extrusion plate 19 moves, it will drive the guide rod 23 to move. The guide rod 23 will move along the guide hole 22. In this way, the movement of the extrusion plate 19 is guided by the guide rod 23, improving the stability of the extrusion plate 19's movement. During the docking operation, when the outer sealing plate 12 is attached to the surface of the cleaning tank 1, first rotate the docking bolt 21. The rotation of the docking bolt 21 inside the threaded hole 20 will drive the extrusion plate 19 to move and attach to the surface of the docking plate 13. Continuing to rotate the docking bolt 21 will cause the extrusion plate 19 to continue to move and attach to the docking plate 13. The extrusion plate 19 and the docking plate 13 are squeezed against each other by the extrusion slope 18. Under the extrusion, the extrusion plate 19 and the docking plate 13 are tightly connected. At this time, the extrusion plate 19 will drive the outer sealing plate 12 to be tightly attached to the surface of the cleaning tank 1 through the guide rod 23 and the docking bolt 21, so that the installation position of the outer sealing plate 12 is stable. When removing it, the above method can be reversed. This achieves the effect of conveniently installing and removing the filter plate assembly 11, and facilitating the cleaning and replacement of the filter plate assembly 11.

[0027] refer to Figure 1-4In this embodiment, a water purification assembly 4 is provided at the bottom of the cleaning tank 1. The water purification assembly 4 includes a connecting pipe 5, a purification chamber 6, a pump body 7, a mounting plate 8, and a water tank 9. The connecting pipe 5 includes a fixed pipe 24, a piston pipe 25, a telescopic pipe 26, and a threaded connecting pipe 27. The fixed pipe 24 is fixedly connected to the top of the purification chamber 6. The piston pipe 25 is movably connected to the inner wall of the fixed pipe 24. The bottom end of the telescopic pipe 26 is fixedly connected to the top of the piston pipe 25. The other end of the telescopic pipe 26 extends above the fixed pipe 24 and is fixedly connected to the threaded connecting pipe 27. The threaded connecting pipe 27 is threaded onto the outlet at the bottom of the cleaning tank 1. The mounting plate 8 is horizontally fixedly connected to the inner side of the bracket 2 and located directly below the cleaning tank 1. The purification chamber 6 is fixedly connected to the upper surface of the mounting plate 8. The connecting pipe 5... The water tank is located on the top of the purification chamber 6, with the other end of the connecting pipe 5 threadedly connected to the outlet at the bottom of the cleaning tank 1. The water tank is located on the top of the inner wall of the bracket 2 and directly below the mounting plate 8. The pump body 7 is located on the top of the mounting plate 8, offset from the purification chamber 6. One end of the pump body 7 is fixedly connected to and communicates with the purification chamber 6. The output pipe of the pump body 7 passes through the mounting plate 8 and extends from the top of the water tank 9 to the inside of the water tank 9. During operation, the pre-filtered water enters the purification chamber 6 through the connecting pipe 5. At this time, the pump body 7 is started, and the pre-filtered water is pumped into the purification chamber 6 for purification. After purification, the water is pumped by the pump body 7 to the water tank 9 for storage, thereby achieving the purpose of recycling and reusing the filtered water after cleaning, saving water resources, and is suitable for areas with scarce water resources.

[0028] refer to Figure 1-4In this embodiment, the connecting pipe fitting 5 includes a fixed pipe 24, a piston pipe 25, a telescopic pipe 26, and a threaded connecting pipe 27. The fixed pipe 24 is fixedly connected to the top of the purification chamber 6, the piston pipe 25 is movably connected to the inner wall of the fixed pipe 24, the bottom end of the telescopic pipe 26 is fixedly connected to the top of the piston pipe 25, and the other end of the telescopic pipe 26 extends above the fixed pipe 24 and is fixedly connected to the threaded connecting pipe 27. The threaded connecting pipe 27 is threaded onto the outlet at the bottom of the cleaning tank 1. During docking, the connecting pipe fitting 5 is designed to be telescopic, which improves the adaptability of the connecting pipe fitting 5 and makes it easy to remove the connecting pipe fitting 5 from the outlet at the bottom of the cleaning tank 1. During the docking operation, firstly... To move the threaded connector 27 upwards, the threaded connector 27 will drive the telescopic tube 26 upwards. The upward movement of the telescopic tube 26 will drive the piston tube 25 upwards inside the fixed tube 24. The piston tube 25 mainly improves the sealing performance with the fixed tube 24. When the threaded connector 27 reaches the discharge port at the bottom of the cleaning tank 1, rotate the threaded connector 27 so that its threads are engaged with the surface of the discharge port. When the threaded connector 27 rotates, it will drive the telescopic tube 26 and the piston tube 25 to rotate inside the fixed tube 24. This rotation does not affect the sealing performance between the piston tube 25 and the fixed tube 24. In this way, the connection is completed. When removing it, simply reverse the above operation to facilitate the separation of the connector 5 from the discharge port.

[0029] refer to Figure 1-4In this embodiment, the purification box 6 includes a purification box 28, an outer fixing plate 29, a purification filter element 30, and a snap-fit ​​assembly 31. The purification box 28 is located on top of the mounting plate 8, the purification filter element 30 is located at the bottom of the outer fixing plate 29, and the outer fixing plate 29 is located on top of the purification box 28. The bottom end of the purification filter element 30 extends into the interior of the purification box 28 and fits against the inner wall of the purification box 28. The snap-fit ​​assembly 31 is located on the side of the purification box 28 near the outer fixing plate 29 and snaps onto the top of the outer fixing plate 29. The purification filter element 30 is a ceramic filter element. Since it is used to wash grains taken from the soil, the soil may contain bacteria and parasite eggs. Using a ceramic filter element can effectively filter bacteria and parasite eggs. Not limited to ceramic filter elements, activated carbon filter elements are also needed for grains with high pesticide residues. They can be used in combination with ceramic filter elements or used alone. During installation, the purification filter element 30 is inserted into the purification box 28 from the top. At this time, the purification filter element 30 is tightly attached to the inner wall of the purification box 28. Then, the docking assembly 14 is used to fix the outer fixing plate 29, so that the outer fixing plate 29 is stably fixed to the top of the purification box 28. During filtration, the pump body 7 is started to draw the pre-filtered water onto the purification filter element 30 for purification. After being purified by the purification filter element 30, the water reaches the water tank 9 through the pump body 7 for storage. The pump body 7 is used to drive the water flow, so that the water has enough power to pass through the purification filter element 30 for filtration.

[0030] refer to Figure 1-4In this embodiment, the snap-fit ​​assembly 31 includes a fixed frame 32, an inner guide groove 33, a movable snap plate 34, a snap strip 35, and a fixing bolt 36. The fixed frame 32 is fixedly connected to the side of the purification box 28 near the top. The inner guide groove 33 is formed on both sides of the inner wall of the fixed frame 32. The fixed frame 32 is movably fitted onto the surface of the movable snap plate 34, and both ends of the movable snap plate 34 are movably connected to the inside of the inner guide groove 33. The snap strip 35 is fixedly connected to the top of the outer fixed plate 29 near the fixed frame 32. The movable snap plate 34 snaps onto the surface of the snap strip 35. The surface of the fixed frame 32 has a positioning hole, and the fixing bolt 36 is threaded into the positioning hole. One end of the fixing bolt 36 abuts against the surface of the movable snap plate 34. The top of the water tank 9 is provided with a filling port for adding and removing water from the water tank 9 from the outside. When operating the snap-fit ​​assembly 31, after the purification filter element 30 and the outer fixing plate 29 are installed, first rotate the fixing bolt 36. The fixing bolt 36 is also a hand-tightening bolt. After manually rotating the fixing bolt 36, the movable clamping plate 34 moves along the inner guide groove 33 towards the clamping strip 35 on the outer fixing plate 29 until the movable clamping plate 34 is locked onto the clamping strip 35. The clamping strip 35 and the movable clamping plate 34 are also provided with a slope for compression. After the movable clamping plate 34 compresses the clamping strip 35, the clamping strip 35 has a downward pressure that makes the outer fixing plate 29 fit tightly against the top of the purification box 28. After the outer fixing plate 29 is fixed and stable, stop rotating the fixing bolt 36. At this time, the fixing of the outer fixing plate 29 and the purification filter element 30 can be completed. When removing it, simply reverse the above operation to facilitate the installation and removal of the purification filter element 30 for cleaning.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A washing device for primary agricultural products, characterized in that, It includes a cleaning tank (1) and a support (2). The cleaning tank (1) is located on the inner side of the support (2) near the top. The support (2) is placed stably on the ground. A filter assembly (3) is provided on the inner wall of the cleaning tank (1) near the bottom, and a water purification assembly (4) is provided at the bottom of the cleaning tank (1). The water purification assembly (4) includes a connecting pipe (5), a purification box (6), a pump (7), a mounting plate (8), and a water tank (9). The mounting plate (8) is horizontally fixedly connected to the inside of the bracket (2) and located directly below the cleaning tank (1). The purification box (6) is fixedly connected to the upper surface of the mounting plate (8). The connecting pipe (5) is located at the top of the purification box (6), and the other end of the connecting pipe (5) is threaded to the outlet at the bottom of the cleaning tank (1). The water tank is located at the top of the inner wall of the bracket (2) and directly below the mounting plate (8). The pump (7) is located at the top of the mounting plate (8) at a position offset from the purification box (6). One end of the pump (7) is fixedly connected to and communicates with the purification box (6). The output pipe of the pump (7) passes through the mounting plate (8) and extends from the top of the water tank (9) to the inside of the water tank (9).

2. The washing device for primary agricultural products according to claim 1, characterized in that, The filter assembly (3) includes a mounting groove (10), a filter plate assembly (11), an outer sealing plate (12), a docking plate (13), and a docking component (14). The mounting groove (10) is located on the inner wall of the cleaning tank (1) near the bottom, and one side of the mounting groove (10) extends to the outside of the cleaning tank (1), communicating with the surface of the cleaning tank (1) and the mounting groove (10). The filter plate assembly (11) is movably inserted into the interior of the mounting groove (10), and the inner side of the outer sealing plate (12) is connected to the filter plate assembly (14). The end face of the plate assembly (11) is fixedly connected, the curvature of the outer sealing plate (12) matches the curvature of the surface of the cleaning tank (1), the outer sealing plate (12) is tightly attached to the surface of the cleaning tank (1) at the opening of the mounting groove (10), the docking plate (13) is fixedly connected to the side of the cleaning tank (1) near the outer sealing plate (12), the docking assembly (14) is set on the side ear of the outer sealing plate (12), and the outer sealing plate (12) is movably snapped to the docking plate (13) through the docking assembly (14).

3. The washing device for primary agricultural products according to claim 2, characterized in that, The filter plate assembly (11) includes a coarse filter plate (15), a fine filter plate (16), and a limiting ring (17). The coarse filter plate (15) and the fine filter plate (16) are both movably inserted into the inside of the mounting groove (10), and the coarse filter plate (15) is located directly above the fine filter plate (16). There are two sets of limiting rings (17), and the two sets of limiting rings (17) are fixedly connected to the top of the coarse filter plate (15) and the fine filter plate (16), respectively. The end faces of the coarse filter plate (15) and the fine filter plate (16) are fixedly connected to the inner side of the outer sealing plate (12).

4. The washing device for primary agricultural products according to claim 3, characterized in that, The docking assembly (14) includes an extrusion bevel (18), an extrusion plate (19), a threaded hole (20), and a docking bolt (21). The extrusion bevel (18) is respectively opened on the opposite sides of the extrusion plate (19) and the docking plate (13). The extrusion plate (19) is movably connected to the side of the lug on the docking plate (13) and the outer sealing plate (12). The extrusion bevel (18) on the extrusion plate (19) fits against the extrusion bevel (18) on the docking plate (13). The threaded hole (20) is opened on the side of the lug on the outer sealing plate (12). The docking bolt (21) is set on the extrusion plate (19). One end of the docking bolt (21) is threadedly connected to the threaded hole (20). The docking bolt (21) is a hand-tightening bolt.

5. A washing device for primary agricultural products according to claim 4, characterized in that, The outer sealing plate (12) has guide holes (22) symmetrically opened on the side of the upper ear with the threaded hole (20) as the axis of symmetry. A guide rod (23) is movably connected inside the guide hole (22), and one end of the guide rod (23) is fixedly connected to the inner side of the extrusion plate (19).

6. A washing device for primary agricultural products according to claim 5, characterized in that, The connecting pipe fitting (5) includes a fixed pipe (24), a piston pipe (25), a telescopic pipe (26), and a threaded connecting pipe (27). The fixed pipe (24) is fixedly connected to the top of the purification chamber (6). The piston pipe (25) is movably connected to the inner wall of the fixed pipe (24). The bottom end of the telescopic pipe (26) is fixedly connected to the top of the piston pipe (25). The other end of the telescopic pipe (26) extends to the top of the fixed pipe (24) and is fixedly connected to the threaded connecting pipe (27). The threaded connecting pipe (27) is threaded onto the outlet at the bottom of the cleaning tank (1).

7. A washing device for primary agricultural products according to claim 6, characterized in that, The purification box (6) includes a purification box (28), an outer fixing plate (29), a purification filter element (30), and a snap-fit ​​assembly (31). The purification box (28) is located on the top of the mounting plate (8), the purification filter element (30) is located on the bottom of the outer fixing plate (29), the outer fixing plate (29) is located on the top of the purification box (28), the bottom end of the purification filter element (30) extends into the interior of the purification box (28) and fits against the inner wall of the purification box (28), and the snap-fit ​​assembly (31) is located on the side of the purification box (28) near the outer fixing plate (29) and snaps onto the top of the outer fixing plate (29).

8. A washing device for primary agricultural products according to claim 7, characterized in that, The snap-fit ​​assembly (31) includes a fixed frame (32), an inner guide groove (33), a movable snap plate (34), a snap strip (35), and a fixing bolt (36). The fixed frame (32) is fixedly connected to the side of the purification box (28) near the top. The inner guide groove (33) is opened on both sides of the inner wall of the fixed frame (32). The fixed frame (32) is movably fitted onto the surface of the movable snap plate (34), and both ends of the movable snap plate (34) are movably connected to the inside of the inner guide groove (33). The snap strip (35) is fixedly connected to the top of the outer fixed plate (29) near the fixed frame (32). The movable snap plate (34) is snapped onto the surface of the snap strip (35). The surface of the fixed frame (32) is provided with a positioning hole. The fixing bolt (36) is threaded into the inside of the positioning hole. One end of the fixing bolt (36) abuts against the surface of the movable snap plate (34). The top of the water tank (9) is provided with a filling port.

9. A washing device for primary agricultural products according to claim 7, characterized in that, The purification filter element (30) is a ceramic filter element.

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