A sweet potato washing machine

By designing a multi-stage cleaning mechanism and an automated conveying system, the problems of low cleaning effect and low automation level of sweet potato cleaning equipment have been solved, achieving efficient and convenient sweet potato cleaning.

CN224268191UActive Publication Date: 2026-05-26商燕

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
商燕
Filing Date
2025-07-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing sweet potato washing equipment suffers from problems such as limited cleaning effect, low degree of automation, and unreasonable structural design, making it difficult to completely remove soil and inconvenient to move.

Method used

A sweet potato washing machine including a primary cleaning mechanism and a secondary cleaning mechanism was designed. It uses middle, side and upper cleaning rollers for brushing, and extends the cleaning time through a resistance gate mechanism. Combined with the power mechanism, it realizes automated conveying and uniform cleaning of the water pipe mechanism.

Benefits of technology

It achieves thorough cleaning of sweet potatoes, improves automation, reduces manual intervention, has a small size that makes it easy to move, and significantly improves cleaning results.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model relates to the technical field of sweet potato washing machines, specifically disclosing a sweet potato washing machine, including: a frame, a primary washing mechanism, a secondary washing mechanism, a water pipe mechanism, and a power mechanism. The primary washing mechanism is located at the upper end of the frame, and a secondary washing mechanism is inclinedly arranged at one end of the primary washing mechanism. The water pipe mechanism is located at the upper end of the primary washing mechanism, providing water for washing the sweet potatoes. One end of the water pipe mechanism extends to the secondary washing mechanism to provide water for the secondary washing mechanism. The power mechanism is located at the bottom of the frame, and is connected to the primary washing mechanism via a chain to drive the primary washing mechanism. A transmission mechanism is located at the lower end of the secondary washing mechanism, and one end of the transmission mechanism cooperates with the secondary washing mechanism to drive the secondary washing mechanism. The other end of the transmission mechanism is connected to the primary washing mechanism via a chain, and the primary washing mechanism drives the transmission mechanism.
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Description

Technical Field

[0001] This utility model relates to the technical field of sweet potato washing machines, specifically to a sweet potato washing machine. Background Technology

[0002] Sweet potatoes, as an important crop, require thorough washing after harvest to remove surface dirt and impurities. Traditional washing methods often rely on manual brushing or high-pressure water rinsing, which are not only inefficient and labor-intensive but also waste water and result in uneven washing. With the development of agricultural mechanization, various sweet potato washing devices have emerged, such as drum-type and vibrating screen-type machines, which achieve initial cleaning through the rotation of brush rollers or the vibration of screens. However, these devices still have significant drawbacks:

[0003] Limited cleaning effect: Most equipment adopts a single-stage cleaning structure, which cannot completely remove stubborn dirt by brushing in only one direction. In particular, dirt is easily left in the depressions of sweet potatoes, requiring secondary rework.

[0004] Low level of automation: Sweet potatoes require manual assistance to move or adjust their position during the washing process, which makes continuous operation impossible and affects efficiency; at the same time, the lack of effective control over the washing time leads to some sweet potatoes being under-washed or over-washed and damaged.

[0005] Structural design needs optimization: Existing equipment often adopts a fixed layout, which is bulky and inconvenient to move, making it difficult to adapt to field or small-scale processing scenarios; in addition, the water flow distribution during the cleaning process is uneven, with insufficient water in some areas, affecting the overall cleaning effect.

[0006] Therefore, a sweet potato washing machine is urgently needed to address the technical problems described above. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the defects of the above-mentioned technology and provide a sweet potato washing machine.

[0008] To solve the above-mentioned technical problems, the technical solution provided by this utility model is a sweet potato washing machine, comprising:

[0009] The machine comprises a frame, a primary cleaning mechanism, a secondary cleaning mechanism, a water pipe mechanism, and a power mechanism. The primary cleaning mechanism is located at the upper end of the frame. A secondary cleaning mechanism, inclined at one end, is located at the lower end of the primary cleaning mechanism. A water pipe mechanism, supplying water for cleaning sweet potatoes, extends to the secondary cleaning mechanism at one end, providing water to the secondary cleaning mechanism as well. A power mechanism is located at the bottom of the frame, connected to the primary cleaning mechanism via a chain to drive its operation. A transmission mechanism is located at the lower end of the secondary cleaning mechanism, cooperating with it to drive its operation. The other end of the transmission mechanism is connected to the primary cleaning mechanism via a chain, with the primary cleaning mechanism driving the transmission mechanism's operation.

[0010] As an improvement, the primary cleaning mechanism includes a housing, a central cleaning roller, side cleaning rollers, an upper cleaning roller, a top cover, and a resistance gate mechanism. A central cleaning roller is symmetrically arranged at the bottom center of the housing, and side cleaning rollers are symmetrically arranged on both sides of the housing, each side cleaning roller being diagonally above its corresponding central cleaning roller. An upper cleaning roller is located at the upper part of one side of the housing, directly above one of the side cleaning rollers. Both ends of the central, side, and upper cleaning rollers are rotatably connected to both ends of the housing via bearings. The ends of the central, side, and upper cleaning rollers away from the secondary cleaning mechanism extend out of the housing. Each end of the central and side cleaning rollers extending out of the housing is equipped with two first sprockets. Two of the first sprockets on the two central cleaning rollers are connected by a chain. The other first sprocket on the central cleaning roller and one of the first sprockets on the side cleaning roller are connected by a chain. One of the first sprockets on the side cleaning roller away from the upper cleaning roller is connected to a power mechanism via a chain.

[0011] The upper cleaning roller extends out of the housing and is provided with a second sprocket. The second sprocket is connected to one of the first sprockets on the side cleaning roller located directly below the upper cleaning roller via a chain.

[0012] One of the central cleaning rollers extends out of the housing near the secondary cleaning mechanism and is equipped with a third sprocket, which is connected to the transmission mechanism via a chain;

[0013] The upper part of the box is provided with a top cover, and the end of the box and the top cover away from the secondary cleaning mechanism is provided with a loading port;

[0014] The box body has a discharge port at one end near the secondary cleaning mechanism. The top cover is equipped with a resistance gate mechanism that rotates via a hinge above the discharge port to limit the sweet potatoes from coming out of the discharge port too quickly, so that the sweet potatoes can be cleaned in the box for a longer time.

[0015] The middle cleaning roller, side cleaning roller, and upper cleaning roller are all uniformly provided with first bristles, and the middle cleaning roller, side cleaning roller, and upper cleaning roller are all provided with spirally arranged second bristles. When the middle cleaning roller, side cleaning roller, and upper cleaning roller rotate, the second bristles will push the sweet potato from the inlet to the outlet, and enter the secondary cleaning mechanism through the outlet.

[0016] As an improvement, the resistance door mechanism includes a door panel, a torsion spring, a shaft, a fixed sleeve, and a limiting plate. The upper end of the door panel is connected to a top cover via a hinge. The upper end of the top cover is provided with a limiting plate. Fixed sleeves are symmetrically provided on both sides of the limiting plate on the top cover. The two ends of the shaft are rotatably disposed in the fixed sleeves. A torsion spring is provided on the shaft. One end of the torsion spring abuts against the limiting plate, and the other two ends of the torsion spring abut against the door panel.

[0017] As an improvement, the power mechanism includes a motor and a reducer, both of which are located at the bottom of the frame. The motor and reducer are connected by a belt. A sixth sprocket is provided on the output shaft of the reducer. The sixth sprocket is connected to one of the first sprockets on the side cleaning roller located above it via a chain.

[0018] As an improvement, the outer side of the first sprocket and the second sprocket at one end of the box is provided with a side cover, the bottom of the box is provided with a drain port, and a drain hopper is provided at the drain port.

[0019] As an improvement, the secondary cleaning mechanism includes a cleaning tank, a rotating shaft, a fixed frame, a spiral stirring blade, and a first bevel gear. One end of the cleaning tank is provided with a discharge port, and one end of the discharge port is provided with a fixed frame. The lower end of the fixed frame is provided with a first bearing seat. The rotating shaft is rotatably mounted on the bottom center of the cleaning tank via a bearing. The other end of the rotating shaft is placed in the first bearing seat. The rotating shaft is provided with a spiral stirring blade, and the lower end of the rotating shaft is provided with a first bevel gear. The first bevel gear cooperates with a transmission mechanism. The cleaning tank is located on the side of the housing with the discharge port, and the discharge port end of the cleaning tank is inclined upwards while the other end is inclined downwards.

[0020] As an improvement, the transmission mechanism includes a support plate, a second bearing seat, a third bearing seat, a transmission shaft, a second bevel gear, and a fourth sprocket. The support plate is symmetrically arranged at the bottom of the cleaning tub. The support plate is provided with a second bearing seat. The transmission shaft is disposed in two second bearing seats. A second bevel gear is provided at one end of the transmission shaft near the first bevel gear. The first bevel gear and the second bevel gear mesh. A fourth sprocket is provided at the other end of the transmission shaft. The third bearing seat is disposed on one side of the housing. A rotating shaft is provided in the third bearing seat. Two fifth sprockets are provided at one end of the rotating shaft. One of the fifth sprockets is connected to the third sprocket via a chain, and the other fifth sprocket is connected to the fourth sprocket via a chain.

[0021] As an improvement, the water pipe mechanism includes an inlet pipe, a primary pipe, a lower pipe, and a mounting plate. The inlet pipe and the primary pipe are both mounted on the top cover. One end of the inlet pipe is connected to the primary pipe. A first branch pipe and a second branch pipe are respectively provided on the inlet pipe. Valves are provided at the positions between the first and second branch pipes and on the second branch pipe. One end of the second branch pipe extends to the upper part of the cleaning tank. One end of the mounting plate is mounted on a fixed frame. A pipe support is suspended on the mounting plate. The lower pipe is provided inside the pipe support. One end of the lower pipe and one end of the first branch pipe are connected by a flexible hose. Water spray nozzles are provided on both sides of the inlet pipe on the primary pipe and on both sides of the pipe support on the lower pipe. The water spray nozzles on the primary pipe extend from the top cover into the tank body.

[0022] As an improvement, casters are provided at the four corners of the bottom of the frame.

[0023] The advantages of this utility model compared with the prior art are as follows:

[0024] 1. It is equipped with a primary cleaning mechanism and a secondary cleaning mechanism. The sweet potatoes are brushed and washed by the middle cleaning roller, side cleaning roller and upper cleaning roller in the primary cleaning mechanism to remove the dirt and other dirt. After the primary cleaning mechanism, the dirt on the sweet potatoes can be basically cleaned. Then they enter the secondary cleaning mechanism for a second cleaning. The secondary cleaning mechanism is mainly used to clean the dirt and other dirt that is still on the sweet potatoes. After two cleanings, the sweet potatoes can be cleaned very well and thoroughly. It is also very convenient to use.

[0025] 2. The middle cleaning roller, side cleaning roller, and upper cleaning roller are all equipped with spirally arranged second bristles. When the middle cleaning roller, side cleaning roller, and upper cleaning roller rotate, the second bristles will push the sweet potato from the inlet to the outlet and enter the secondary cleaning mechanism through the outlet. This can realize the washing and conveying of sweet potatoes to the secondary cleaning mechanism at the same time without manual assistance, realizing the automated conveying of sweet potatoes, which is more time-saving and labor-saving.

[0026] 3. A resistance gate mechanism is installed at the discharge port. The resistance gate mechanism exerts a force on the door panel through a torsion spring. This means that when the sweet potato pushes open the door panel, a greater force is required, which can block the sweet potato and allow it to stay in the primary cleaning mechanism for a longer time, thus allowing for a longer scrubbing time and a cleaner result.

[0027] 4. This sweet potato washing machine has a relatively small overall size, which saves space when stored, requires less effort when pushing it, and is convenient to transport. Attached Figure Description

[0028] Figure 1This is a front view of a sweet potato washing machine according to this utility model.

[0029] Figure 2 This is a left-side three-dimensional structural diagram of a sweet potato washing machine according to this utility model.

[0030] Figure 3 This is a right-side perspective three-dimensional structural diagram of a sweet potato washing machine according to this utility model.

[0031] Figure 4 This is a bottom-view three-dimensional structural diagram of a sweet potato washing machine according to this utility model.

[0032] Figure 5 This is the disassembled state of a sweet potato washing machine according to this utility model. Figure 1 .

[0033] Figure 6 This is the disassembled state of a sweet potato washing machine according to this utility model. Figure 2 .

[0034] Figure 7 This is a schematic diagram of the internal structure of a sweet potato washing machine according to this utility model.

[0035] Figure 8 This is a schematic diagram of the water pipe mechanism of a sweet potato washing machine according to this utility model.

[0036] Figure 9 yes Figure 5 A magnified view of a portion of point A in the middle.

[0037] Figure 10 yes Figure 6 A magnified view of a section at point B.

[0038] As shown in the figure:

[0039] 1. Frame, 2. Housing, 3. Middle cleaning roller, 4. Side cleaning roller, 5. Upper cleaning roller, 6. Top cover, 7. First sprocket, 8. Second sprocket, 9. Third sprocket, 10. Inlet, 11. Outlet, 12. Casters, 13. First brush bristles, 14. Second brush bristles, 15. Door panel, 16. Torsion spring, 17. Shaft, 18. Fixing sleeve, 19. Limiting plate, 20. Motor, 21. Reducer, 22. Sixth sprocket, 23. Drain outlet, 24. Drain hopper, 25. Cleaning tank, 26. 27. Shaft, 28. Fixing frame, 29. Spiral stirring blade, 30. First bevel gear, 31. Discharge port, 32. First bearing seat, 33. Support plate, 34. Second bearing seat, 35. Third bearing seat, 36. Drive shaft, 37. Second bevel gear, 38. Fourth sprocket, 39. Rotating shaft, 40. Fifth sprocket, 41. Water inlet pipe, 42. Primary pipe, 43. Lower pipe, 44. Mounting plate, 45. First branch pipe, 46. Second branch pipe, 47. Valve, 48. Pipe support, 49. Spray nozzle, 40. Side cover. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0041] Combined with appendix Figure 1-10 A sweet potato washing machine, comprising:

[0042] The machine comprises a frame 1, a primary cleaning mechanism, a secondary cleaning mechanism, a water pipe mechanism, and a power mechanism. The primary cleaning mechanism is located at the upper end of the frame 1. A secondary cleaning mechanism, inclined at one end, is located at the lower end of the primary cleaning mechanism. A water pipe mechanism, which provides water for cleaning the sweet potatoes, extends to the secondary cleaning mechanism at one end. A power mechanism is located at the bottom of the frame 1, connected to the primary cleaning mechanism via a chain to drive its operation. A transmission mechanism is located at the lower end of the secondary cleaning mechanism, cooperating with it to drive its operation. The other end of the transmission mechanism is connected to the primary cleaning mechanism via a chain, and the primary cleaning mechanism drives the transmission mechanism's operation.

[0043] The primary cleaning mechanism includes a housing 2, a central cleaning roller 3, side cleaning rollers 4, an upper cleaning roller 5, a top cover 6, and a resistance gate mechanism. The central cleaning roller 3 is symmetrically arranged in the middle of the bottom of the housing 2. The side cleaning rollers 4 are symmetrically arranged on both sides of the housing 2, each side cleaning roller 4 being diagonally above its corresponding central cleaning roller 3. The upper cleaning roller 5 is located on the upper part of one side of the housing 2, directly above one of the side cleaning rollers 4. Both ends of the central cleaning roller 3, side cleaning rollers 4, and upper cleaning roller 5 are connected to the two ends of the housing 2 via bearings. Rotary connection, the middle cleaning roller 3, the side cleaning roller 4, and the upper cleaning roller 5 extend out of the housing 2 at the ends away from the secondary cleaning mechanism. The middle cleaning roller 3 and the side cleaning roller 4 are each provided with two first sprockets 7 at the ends extending out of the housing 2. Two of the first sprockets 7 on the two middle cleaning rollers 3 are connected by a chain. The other first sprocket 7 on the middle cleaning roller 3 and one of the first sprockets 7 on the side cleaning roller 4 are connected by a chain. One of the first sprockets 7 on the side cleaning roller 4 away from the upper cleaning roller 5 is connected to the power mechanism by a chain.

[0044] The upper cleaning roller 5 extends out of the box 2 and is provided with a second sprocket 8. The second sprocket 8 is connected to one of the first sprockets 7 on the side cleaning roller 4 located directly below the upper cleaning roller 5 via a chain.

[0045] One of the central cleaning rollers 3 extends out of the housing 2 near the secondary cleaning mechanism and is equipped with a third sprocket 9, which is connected to the transmission mechanism by a chain;

[0046] The upper end of the box 2 is provided with a top cover 6, and the end of the box 2 and the top cover 6 away from the secondary cleaning mechanism is provided with a discharge port 10;

[0047] The box 2 is provided with a discharge port 11 at one end near the secondary cleaning mechanism. The upper cover 6 is provided with a resistance gate mechanism above the discharge port 11 via a hinge, which is used to limit the sweet potatoes from coming out of the discharge port 11 too quickly, so that the sweet potatoes can be cleaned in the box 2 for a longer time.

[0048] The middle cleaning roller 3, the side cleaning roller 4, and the upper cleaning roller 5 are all uniformly provided with first bristles 13, and the middle cleaning roller 3, the side cleaning roller 4, and the upper cleaning roller 5 are all provided with spirally arranged second bristles 14. When the middle cleaning roller 3, the side cleaning roller 4, and the upper cleaning roller 5 rotate, the second bristles 14 will push the sweet potato from the inlet 10 to the outlet 11, and enter the secondary cleaning mechanism through the outlet 11.

[0049] The resistance door mechanism includes a door panel 15, a torsion spring 16, a shaft 17, a fixed sleeve 18, and a limiting plate 19. The upper end of the door panel 15 is connected to the upper cover 6 via a hinge. The upper end of the upper cover 6 is provided with a limiting plate 19. Fixed sleeves 18 are symmetrically provided on both sides of the upper cover 6 and the limiting plate 19. The two ends of the shaft 17 are rotatably disposed in the fixed sleeves 18. A torsion spring 16 is provided on the shaft 17. One end of the torsion spring 16 abuts against the limiting plate 19, and the other two ends of the torsion spring 16 abut against the door panel 15.

[0050] The power mechanism includes a motor 20 and a reducer 21. Both the motor 20 and the reducer 21 are located at the bottom of the frame 1. The motor 20 and the reducer 21 are connected by a belt. A sixth sprocket 22 is provided on the output shaft of the reducer 21. The sixth sprocket 22 is connected to one of the first sprockets 7 on the side cleaning roller 4 located above it via a chain.

[0051] The outer side cover 49 is provided on the first sprocket 7 and the second sprocket 8 at one end of the box body 2. The bottom of the box body 2 is provided with a drain outlet 23, and a drain hopper 24 is provided at the drain outlet 23 of the box body 2.

[0052] The secondary cleaning mechanism includes a cleaning tank 25, a rotating shaft 26, a fixing frame 27, a spiral stirring blade 28, and a first bevel gear 29. One end of the cleaning tank 25 has a discharge port 30, and the other end of the discharge port 30 is equipped with the fixing frame 27. The lower end of the fixing frame 27 has a first bearing seat 31. The rotating shaft 26 is rotatably mounted on the bottom center of the cleaning tank 25 via a bearing. The other end of the rotating shaft 26 is placed inside the first bearing seat 31. The rotating shaft 26 has a spiral stirring blade 28 with a hollow design, which reduces water resistance and makes rotation of the rotating shaft 26 and spiral stirring blade 28 easier. The lower end of the rotating shaft 26 has a first bevel gear 29, which cooperates with a transmission mechanism. The cleaning tank 25 is located on the side of the housing 2 with the discharge port 11, and the discharge port 30 end of the cleaning tank 25 is tilted upwards while the other end is tilted downwards.

[0053] The transmission mechanism includes a support plate 32, a second bearing seat 33, a third bearing seat 34, a transmission shaft 35, a second bevel gear 36, and a fourth sprocket 37. The support plate 32 is symmetrically arranged at the bottom of the cleaning tub 25. The support plate 32 is provided with a second bearing seat 33. The transmission shaft 35 is disposed in the two second bearing seats 33. The end of the transmission shaft 35 near the first bevel gear 29 is provided with a second bevel gear 36. The first bevel gear 29 and the second bevel gear 36 mesh. The other end of the transmission shaft 35 is provided with a fourth sprocket 37. The third bearing seat 34 is disposed on one side of the housing 2. The third bearing seat 34 is provided with a rotating shaft 38. One end of the rotating shaft 38 is provided with two fifth sprockets 39. One fifth sprocket 39 is connected to the third sprocket 9 by a chain, and the other fifth sprocket 39 is connected to the fourth sprocket 37 by a chain.

[0054] The water pipe mechanism includes an inlet pipe 40, a primary pipe 41, a lower pipe 42, and a mounting plate 43. The inlet pipe 40 and the primary pipe 41 are both mounted on the upper cover 6. One end of the inlet pipe 40 is connected to the primary pipe 41. A branch pipe 44 and a second branch pipe 45 are respectively provided on the inlet pipe 40. Valves 46 are provided between the branch pipe 44 and the second branch pipe 45 on the inlet pipe 40, and on the second branch pipe 45. One end of the second branch pipe 45 extends to the upper part of the cleaning tub 25. The mounting plate 43... 3 One end is set on the fixed frame 27, and a pipe support 47 is suspended on the mounting plate 43. A lower pipe 42 is provided inside the pipe support 47. One end of the lower pipe 42 and one end of a branch pipe 44 are connected by a hose. Water spray nozzles 48 are provided on both sides of the water inlet pipe 40 on the primary pipe 41 and on both sides of the pipe support 47 on the lower pipe 42. The water spray nozzles 48 on the primary pipe 41 extend from the upper cover 6 into the box 2. Sealing end caps are provided at both ends of the primary pipe 41 and the end of the lower pipe 42.

[0055] The frame 1 is equipped with casters 12 at the four corners of its bottom.

[0056] In specific implementation, this utility model

[0057] Equipment preparation: First, place the frame 1 on a stable working site. The casters 12 at the four corners of the bottom of the frame facilitate the movement of the equipment. Connect one end of the water inlet pipe 40 to the water pipe.

[0058] Cleaning operation process: Connect the power supply and start the motor 20. The motor 20 drives the reducer 21 to run. The sixth sprocket 22 on the output shaft of the reducer 21 drives the first sprocket 7 on the side cleaning roller 4 to rotate through the chain, thereby driving the side cleaning roller 4 to rotate. The side cleaning roller 4 drives the middle cleaning roller 3 to rotate through the chain. At the same time, the upper cleaning roller 5 is connected to the first sprocket 7 on the lower side cleaning roller 4 through the second sprocket 8 and also rotates. The first-stage cleaning mechanism starts to operate. At the same time, the third sprocket 9 at one end of the middle cleaning roller 3 drives a fifth sprocket 39 on the rotating shaft 38 to rotate through the chain, thereby driving another fifth sprocket 39 to rotate through the chain. The fourth sprocket 37 on the transmission shaft 35 rotates through the chain. The second bevel gear 36 on the transmission shaft 35 meshes with the first bevel gear 29 at the lower end of the rotating shaft 26, driving the rotating shaft 26 and the spiral stirring blade 28 to rotate. The second-stage cleaning mechanism also starts to operate.

[0059] Turn on the water source and open the valve 46 on the second branch pipe 45 to fill the cleaning tank 25 with water. When the cleaning tank 25 is almost full, close the valve 46 on the second branch pipe 45 and open the valve 46 on the inlet pipe 40. At this time, the first-stage pipe 41 and the lower pipe 42 are connected to the water supply. Then, the water spray nozzle 48 on the first-stage pipe 41 sprays water into the tank 2, and the water spray nozzle 48 on the lower pipe 42 sprays water into the discharge port 1 of the cleaning tank 25.

[0060] The sweet potatoes to be cleaned are placed into the box 2 through the inlet 10. At this time, the water spray nozzle 48 sprays water into the box 2 to moisten the sweet potatoes. The first brush 13 and the spirally arranged second brush 14 on the middle cleaning roller 3, the side cleaning roller 4, and the upper cleaning roller 5 begin to scrub the sweet potatoes. During the rotation of the cleaning rollers, the second brush 14 pushes the sweet potatoes from the inlet 10 to the outlet 11.

[0061] When the sweet potato reaches the discharge port 11, due to the existence of the resistance door mechanism, the door panel 15 has a certain resistance force on the sweet potato under the action of the torsion spring 16. The sweet potato needs more force to push open the resistance door, so that the sweet potato can be cleaned for a longer time in the box 2 and cleaned more thoroughly. After cleaning, the sweet potato enters the cleaning tank 25 of the secondary cleaning mechanism through the discharge port 11.

[0062] During cleaning, the muddy water will be discharged from the drain port 23 at the bottom of the tank 2, and then discharged to one side along the drain hopper 24;

[0063] In the secondary cleaning mechanism, the spiral stirring blades 28 rotate to wash the sweet potatoes again, removing residual dirt and other impurities from the sweet potatoes in one step. At the same time, they will push the sweet potatoes towards the discharge port 30. After washing, the sweet potatoes will be discharged from the discharge port 30 of the cleaning tank 25. The water spray nozzles 48 on the lower pipe 42 spray water towards the discharge port 1 of the cleaning tank 25. When the sweet potatoes reach the discharge port 1, water will spray onto the sweet potatoes to rinse them again. At the same time, it can also replenish the water in the cleaning tank 25, thus completing the entire cleaning process.

[0064] In the description of the embodiments of this utility model, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0065] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0066] In the description of the embodiments of this utility model, "a plurality of" means at least two.

[0067] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0068] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sweet potato washing machine, characterized in that, include: The machine includes a frame (1), a primary cleaning mechanism, a secondary cleaning mechanism, a water pipe mechanism, and a power mechanism. The upper end of the frame (1) is equipped with a primary cleaning mechanism, and one end of the primary cleaning mechanism is equipped with an inclined secondary cleaning mechanism. The upper end of the primary cleaning mechanism is equipped with a water pipe mechanism, which provides water for cleaning sweet potatoes. One end of the water pipe mechanism extends to the secondary cleaning mechanism to provide water for the secondary cleaning mechanism. The bottom of the frame (1) is equipped with a power mechanism, which is connected to the primary cleaning mechanism via a chain to drive the primary cleaning mechanism. The lower end of the secondary cleaning mechanism is equipped with a transmission mechanism, one end of which cooperates with the secondary cleaning mechanism to drive the secondary cleaning mechanism. The other end of the transmission mechanism is connected to the primary cleaning mechanism via a chain, and the primary cleaning mechanism drives the transmission mechanism to operate.

2. The sweet potato washing machine according to claim 1, characterized in that: The primary cleaning mechanism includes a housing (2), a central cleaning roller (3), side cleaning rollers (4), an upper cleaning roller (5), a top cover (6), and a resistance gate mechanism. The central cleaning roller (3) is symmetrically arranged in the middle of the bottom of the housing (2). Side cleaning rollers (4) are symmetrically arranged on both sides of the housing (2), with each side cleaning roller (4) located diagonally above its corresponding central cleaning roller (3). An upper cleaning roller (5) is located on the upper part of one side of the housing (2), directly above one of the side cleaning rollers (4). Both ends of the central cleaning roller (3), side cleaning rollers (4), and upper cleaning roller (5) are connected to the housing (2) via bearings. The end of the middle cleaning roller (3), the side cleaning roller (4), and the upper cleaning roller (5) extend out of the housing (2) away from the secondary cleaning mechanism. The middle cleaning roller (3) and the side cleaning roller (4) are each provided with two first sprockets (7) at the end of the middle cleaning roller (3) and the side cleaning roller (4) extending out of the housing (2). Two of the first sprockets (7) on the two middle cleaning rollers (3) are connected by a chain. The other first sprocket (7) on the middle cleaning roller (3) and one of the first sprockets (7) on the side cleaning roller (4) are connected by a chain. One of the first sprockets (7) on the side cleaning roller (4) away from the upper cleaning roller (5) is connected to the power mechanism by a chain. The upper cleaning roller (5) is provided with a second sprocket (8) at one end extending out of the box body (2). The second sprocket (8) is connected to one of the first sprockets (7) on the side cleaning roller (4) located directly below the upper cleaning roller (5) via a chain. in One of the central cleaning rollers (3) extends out of the housing (2) near one end of the secondary cleaning mechanism and is provided with a third sprocket (9), which is connected to the transmission mechanism by a chain; The upper end of the box (2) is provided with a top cover (6), and the end of the box (2) and the top cover (6) away from the secondary cleaning mechanism is provided with a discharge port (10); The box (2) has a discharge port (11) at one end near the secondary cleaning mechanism. The upper cover (6) is provided with a resistance gate mechanism by means of a hinge at the discharge port (11) to limit the sweet potatoes from coming out of the discharge port (11) too quickly, so that the sweet potatoes can be cleaned in the box (2) for a longer time. The middle cleaning roller (3), side cleaning roller (4), and upper cleaning roller (5) are all uniformly provided with first bristles (13), and the middle cleaning roller (3), side cleaning roller (4), and upper cleaning roller (5) are all provided with spirally arranged second bristles (14). When the middle cleaning roller (3), side cleaning roller (4), and upper cleaning roller (5) rotate, the second bristles (14) will push the sweet potato from the inlet (10) to the outlet (11) and enter the secondary cleaning mechanism through the outlet (11).

3. The sweet potato washing machine according to claim 2, characterized in that: The resistance door mechanism includes a door panel (15), a torsion spring (16), a shaft (17), a fixed sleeve (18), and a limiting plate (19). The upper end of the door panel (15) is connected to the upper cover (6) via a hinge. The upper end of the upper cover (6) is provided with a limiting plate (19). Fixed sleeves (18) are symmetrically provided on both sides of the upper cover (6) and the two ends of the shaft (17) are rotatably disposed in the fixed sleeves (18). A torsion spring (16) is provided on the shaft (17). One end of the torsion spring (16) abuts against the limiting plate (19), and the other two ends of the torsion spring (16) abut against the door panel (15).

4. A sweet potato washing machine according to claim 2, characterized in that: The power mechanism includes a motor (20) and a reducer (21). The motor (20) and the reducer (21) are both located at the bottom of the frame (1). The motor (20) and the reducer (21) are connected by a belt. The output shaft of the reducer (21) is provided with a sixth sprocket (22). The sixth sprocket (22) is connected by a chain to one of the first sprockets (7) on the side cleaning roller (4) located above it.

5. A sweet potato washing machine according to claim 3, characterized in that: The box body (2) has a side cover (49) on the outside of the first sprocket (7) and the second sprocket (8) at one end. The box body (2) has a drain port (23) at the bottom and a drain hopper (24) at the drain port (23).

6. A sweet potato washing machine according to claim 3, characterized in that: The secondary cleaning mechanism includes a cleaning tank (25), a rotating shaft (26), a fixed frame (27), a spiral stirring blade (28), and a first bevel gear (29). One end of the cleaning tank (25) is provided with a discharge port (30), and one end of the discharge port (30) of the cleaning tank (25) is provided with a fixed frame (27). The lower end of the fixed frame (27) is provided with a first bearing seat (31). The rotating shaft (26) is rotatably provided at the bottom center of the cleaning tank (25) through a bearing. The other end of the rotating shaft (26) is placed in the first bearing seat (31). The spiral stirring blade (28) is provided on the rotating shaft (26), and the lower end of the rotating shaft (26) is provided with a first bevel gear (29). The first bevel gear (29) cooperates with the transmission mechanism. The cleaning tank (25) is set on the side of the box body (2) where the discharge port (11) is provided, and the end of the discharge port (30) of the cleaning tank (25) is inclined upward and the other end is inclined downward.

7. A sweet potato washing machine according to claim 6, characterized in that: The transmission mechanism includes a support plate (32), a second bearing seat (33), a third bearing seat (34), a transmission shaft (35), a second bevel gear (36), and a fourth sprocket (37). The support plate (32) is symmetrically arranged at the bottom of the cleaning tub (25). The second bearing seat (33) is provided on the support plate (32). The transmission shaft (35) is disposed in the two second bearing seats (33). The second bevel gear (36) is provided at one end of the transmission shaft (35) near the first bevel gear (29). The first bevel gear (29) and the second bevel gear (36) mesh. The other end of the drive shaft (35) is provided with a fourth sprocket (37). The third bearing seat (34) is located on one side of the housing (2). The third bearing seat (34) is provided with a rotating shaft (38). One end of the rotating shaft (38) is provided with two fifth sprockets (39). One of the fifth sprockets (39) is connected to the third sprocket (9) by a chain, and the other fifth sprocket (39) is connected to the fourth sprocket (37) by a chain.

8. A sweet potato washing machine according to claim 6, characterized in that: The water pipe mechanism includes an inlet pipe (40), a primary pipe (41), a lower pipe (42), and a mounting plate (43). The inlet pipe (40) and the primary pipe (41) are both mounted on the upper cover (6). One end of the inlet pipe (40) is connected to the primary pipe (41). The inlet pipe (40) is provided with a first branch pipe (44) and a second branch pipe (45). Valves (46) are provided at the positions between the first branch pipe (44) and the second branch pipe (45) on the inlet pipe (40) and on the second branch pipe (45). One end of the second branch pipe (45) extends to the clear water. At the top of the washing tub (25), one end of the mounting plate (43) is set on the fixed frame (27), and a pipe bracket (47) is suspended on the mounting plate (43). A lower pipe (42) is provided inside the pipe bracket (47). One end of the lower pipe (42) and one end of a branch pipe (44) are connected by a hose. Water spray nozzles (48) are provided on both sides of the water inlet pipe (40) on the first-stage pipe (41) and on both sides of the pipe bracket (47) on the lower pipe (42). The water spray nozzles (48) on the first-stage pipe (41) extend from the top cover (6) into the box body (2).

9. A sweet potato washing machine according to claim 1, characterized in that: The frame (1) is equipped with casters (12) at the four corners of its bottom.