Potato collecting and screening device

By designing a potato collecting and screening device, and utilizing the gradually decreasing gap between the inner rollers of the frame and the motor-driven brush cleaning component, the problems of low potato screening efficiency and high labor costs were solved, achieving efficient automatic screening and cleaning, and improving production efficiency.

CN224010465UActive Publication Date: 2026-03-20HUANGZHONG JIEDA CROP PLANTING PROFESSIONAL COOP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

In existing technologies, potatoes need to be screened according to size during harvesting, which is inefficient and has high labor costs, thus affecting production efficiency.

Method used

Design a potato collecting and screening device, including a base, screening box, cleaning component, limiting component and screening component. The device uses the gradually decreasing gap of the circular rollers in the frame for screening and uses motor-driven brushes and conveyor belts for cleaning, thus achieving automated screening and cleaning.

Benefits of technology

It enables efficient and automated screening and cleaning of potatoes, reduces labor costs, improves production efficiency, and facilitates subsequent processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of potato collecting, and discloses a potato collecting and screening device which comprises a base and a screening box and further comprises a cleaning assembly, a limiting assembly and a screening assembly, the cleaning assembly and the limiting assembly are both installed at the top of the screening box, and the screening assembly is installed at the bottom of the screening box. Three longitudinal frames are arranged at the bottom of the interior of the screening box, round rollers at equal intervals on the inner walls of rectangular grooves in the frames are spaced by certain gaps, after the potatoes fall into the frames, the potatoes larger than the gaps of the round rollers are screened, and the slightly smaller potatoes fall into the lower frame. Potatoes are screened by the round rollers with slightly small gaps, smaller potatoes are screened by the round rollers with smaller gaps, so that the potatoes are screened, and the screened potatoes can be respectively collected by detaching the frame after the potatoes are screened.
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Description

Technical Field

[0001] This utility model relates to the field of potato harvesting technology, specifically a potato harvesting and screening device. Background Technology

[0002] Potatoes, also known as spuds, are a widely cultivated tuber vegetable belonging to the nightshade family (Solanaceae). They are rich in starch, vitamin C, vitamin B6, and minerals, and are commonly used to make various dishes such as French fries, mashed potatoes, and baked potatoes.

[0003] Potatoes need to be screened according to size during harvesting. Existing technology relies on manual screening of potatoes by size, which is inefficient and significantly increases labor costs, thus hindering potato production. Therefore, we propose a potato harvesting and screening device. Utility Model Content

[0004] The purpose of this utility model is to provide a potato harvesting and screening device to solve the problem mentioned in the background art that potatoes need to be screened according to different sizes during harvesting. The existing technology screens potatoes manually according to size, which is inefficient and greatly increases labor costs, thus hindering potato production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a potato collecting and screening device, including a base, a screening box, and further including a cleaning component, a limiting component, and a screening component. The cleaning component and the limiting component are both installed on the top of the screening box, and the screening component is installed on the bottom of the screening box. The screening component performs screening when potatoes fall into the screening box.

[0006] Preferably, the screening assembly includes a rectangular trough, a frame, circular rollers, and handles. The bottom of the screening box is detachably connected to three longitudinal frames. Handles are fixedly connected to the outer walls of the three frames. Rectangular troughs are opened inside the three frames. Circular rollers at equal intervals are movably connected to the inner walls of the rectangular troughs. The gap between adjacent circular rollers inside the three frames gradually decreases.

[0007] Preferably, the cleaning assembly includes a motor, gears, bristles, and rollers. Three equally spaced rollers are movably connected to the top of the screening box. Circumferentially arranged bristles are glued to the surfaces of the three rollers. The three rollers are connected by gears meshing on their end faces. The rollers are connected to the motor output terminal outside the screening box.

[0008] Preferably, the limiting component includes an electric telescopic rod and a baffle. The screening box is provided with symmetrical baffles inside, and the baffles are connected to the output end of the electric telescopic rod outside the screening box.

[0009] Preferably, a conveyor belt is provided at the top of the screening box below the roller, a roller shaft is provided inside the conveyor belt, and a pulley is provided outside the roller shaft. The pulley is connected to the output end of the motor via a belt.

[0010] Preferably, a collection rack is detachably connected to the bottom of the screening box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model sets three sets of longitudinal frames at the bottom of the screening box. The rectangular grooves inside the frames are separated by a certain gap. After the potatoes fall into the frame, potatoes larger than the gap between the rollers are screened. Slightly smaller potatoes fall into the lower frame and are screened by rollers with slightly smaller gaps. Even smaller potatoes are screened by rollers with even smaller gaps, thus realizing the screening of potatoes. After screening, the frames can be disassembled to collect the screened potatoes separately.

[0013] 2. This utility model features a conveyor belt installed at the top inside the screening box. Above the conveyor belt are three rollers with circumferentially arranged bristles, spaced at equal intervals. Symmetrical baffles inside the screening box limit the movement of the conveyor belt on both sides. A motor outside the screening box simultaneously drives the three rollers and the conveyor belt to rotate. The rotating bristles clean the soil and impurities from the surface of the potatoes rolling on the conveyor belt. The cleaned soil and impurities fall into the collection rack at the bottom of the screening box, thus cleaning the potatoes before screening and facilitating subsequent processing. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 is an enlarged schematic diagram of the structure at point A in Figure 1 of this utility model;

[0016] Figure 3 is a schematic diagram of the disassembled structure of the screening component of this utility model;

[0017] Figure 4 is a schematic diagram of the back structure of the screening box of this utility model;

[0018] In the diagram: 1. Base; 2. Screening box; 3. Electric telescopic rod; 4. Baffle; 5. Conveyor belt; 6. Motor; 7. Gear; 8. Brush; 9. Roller; 10. Rectangular trough; 11. Frame; 12. Circular roller;

[0019] 13. Handle; 14. Collection rack; 15. Belt; 16. Roller; 17. Pulley. Detailed Implementation

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] Embodiment

[0022] Please refer to Fig. 1 Figure 4 , a potato harvesting and screening device shown in the drawing, comprising a base 1, a screening box 2, further comprising a cleaning assembly, a limiting assembly and a screening assembly, the cleaning assembly and the limiting assembly are both installed on the top of the screening box 2, the screening assembly is installed on the bottom of the screening box 2, and the screening assembly screens when the potatoes fall in;

[0023] Further, the screening assembly comprises a rectangular groove 10, a frame 11, a round roller 12 and a handle 13, the bottom of the screening box 2 is detachably connected with three longitudinal frames 11, the outer wall of each of the three frames 11 is fixedly connected with a handle 13, the interior of each of the three frames 11 is provided with a rectangular groove 10, and the inner wall of the rectangular groove 10 is movably connected with equidistant round rollers 12, and the gap between the adjacent round rollers 12 in the interior of each of the three frames 11 gradually decreases;

[0024] Further, the bottom of the screening box 2 is detachably connected with a collecting rack 14;

[0025] Three groups of frames 11 are arranged in the interior of the screening box 2 at the bottom position, the equidistant round rollers 12 on the inner wall of the rectangular groove 10 in the interior of the frame 11 separate a certain gap, the potatoes larger than the gap between the round rollers 12 are screened after falling into the interior of the frame 11, the slightly smaller potatoes fall into the lower frame 11 and are screened by the round rollers 12 with slightly smaller gaps, and the smaller potatoes are screened by the round rollers 12 with smaller gaps, so that the screening of the potatoes is realized, the frames 11 are disassembled after the screening is completed, and the screened potatoes can be collected respectively, in addition, a thin foam layer is sleeved on the surface of the round roller 12, which has a certain buffering effect on the falling potatoes and prevents the potatoes from being broken.

[0026] On the basis of the foregoing scheme, the cleaning assembly comprises a motor 6, a gear 7, a bristle 8 and a roller 9, the top of the screening box 2 is movably connected with three equidistant rollers 9, the surface of each of the three rollers 9 is adhesively connected with circumferentially arranged bristles 8, the three rollers 9 are meshingly connected through the gear 7 on the end face, and the roller 9 is connected with the output end of the motor 6 outside the screening box 2.

[0027] Furthermore, a conveyor belt 5 is provided at the top of the screening box 2 below the roller 9. A roller shaft 16 is provided inside the conveyor belt 5, and a pulley 17 is provided outside the roller shaft 16. The pulley 17 is connected to the output end of the motor 6 through a belt 15.

[0028] As a further improvement of this invention, the limiting component includes an electric telescopic rod 3 and a baffle 4. The screening box 2 is provided with symmetrical baffles 4 inside, and the baffles 4 are connected to the output end of the electric telescopic rod 3 outside the screening box 2.

[0029] A conveyor belt 5 is installed at the top inside the screening box 2. Three rollers 9 with circumferentially arranged bristles 8 are positioned equidistantly above the conveyor belt 5. Symmetrical baffles 4 inside the screening box 2 limit the movement of the conveyor belt 5 on both sides. A motor 6 outside the screening box 3 simultaneously drives the three rollers 9 and the conveyor belt 5 to rotate. The rotating bristles 8 clean the soil and impurities from the rolling potatoes on the conveyor belt 5. The cleaned soil and impurities fall into the collection rack 14 at the bottom of the screening box 2, achieving pre-screening cleaning of the potatoes and facilitating subsequent processing. The motor 6 is a reversible motor, such as a Y-series three-phase reversible motor.

[0030] An asynchronous motor enables adjustment of the conveyor belt's 5-way direction, accelerating the cleaning and conveying of potatoes for greater efficiency.

[0031] It should be noted that this utility model is a potato collecting and screening device. First, the electric telescopic rod 3 is started, driving the baffle 4 to be positioned above the conveyor belt 5. Then, the motor 6 is started, guiding the potatoes to be screened onto the surface of the conveyor belt 5. The motor 6 simultaneously drives the three sets of rollers 9 and the conveyor belt 5 to rotate. The rotating brushes 8 clean the soil and impurities on the surface of the potatoes rolling on the conveyor belt 5. The cleaned soil and impurities fall into the collection rack 14 at the bottom of the screening box 2. Then, the electric telescopic rod 3 is started, driving the baffle 4 to retract. The potatoes rolling on the surface of the conveyor belt 5 fall through the gaps at both ends and pass through the circular rollers 12 inside the upper frame 11. Potatoes with gaps larger than the rollers 12 are screened. Slightly smaller potatoes fall into the middle frame 11 and are screened by the circular rollers 12 with slightly smaller gaps. Even smaller potatoes are screened by the circular rollers 12 with even smaller gaps in the lower layer, thus achieving potato screening. After the screening operation is completed, the frame 11 is... The collection rack 14 can be disassembled to collect the sieved potatoes separately and clean the collected soil and impurities.

[0032] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0033] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. A potato collecting and screening device, comprising a base (1) and a screening box (2), characterized in that: It also includes a cleaning component, a limiting component and a screening component. The cleaning component and the limiting component are both installed on the top of the screening box (2), and the screening component is installed on the bottom of the screening box (2). The screening component screens the potatoes when they fall in. The screening assembly includes a rectangular groove (10), a frame (11), a circular roller (12), and a handle (13). The bottom of the screening box (2) is detachably connected to three longitudinal frames (11). The outer walls of the three frames (11) are all fixedly connected to handles (13). The interior of the three frames (11) is provided with rectangular grooves (10). The inner walls of the rectangular grooves (10) are movably connected to equidistant circular rollers (12).

2. The potato collecting and screening device according to claim 1, characterized in that: The gap between adjacent rollers (12) inside the three frames (11) gradually decreases.

3. The potato collecting and screening device according to claim 1, characterized in that: The cleaning assembly includes a motor (6), a gear (7), bristles (8), and rollers (9). Three rollers (9) are equidistantly connected to the top of the screening box (2). The three rollers (9) are glued together with circumferentially arranged bristles (8). The three rollers (9) are connected by gears (7) on their end faces. The rollers (9) are connected to the output end of the motor (6) outside the screening box (2).

4. The potato collecting and screening device according to claim 1, characterized in that: The limiting component includes an electric telescopic rod (3) and a baffle (4). The screening box (2) is provided with symmetrical baffles (4) inside. The baffles (4) are connected to the output end of the electric telescopic rod (3) outside the screening box (2).

5. A potato collecting and screening device according to claim 3, characterized in that: The top of the screening box (2) is provided with a conveyor belt (5) located below the roller (9). The conveyor belt (5) is provided with a roller shaft (16) inside. The roller shaft (16) is provided with a pulley (17) outside. The pulley (17) is connected to the output end of the motor (6) through a belt (15).

6. A potato collecting and screening device according to claim 5, characterized in that: The bottom of the screening box (2) is detachably connected to a collection rack (14).