Grain screening device for intelligent agriculture
By using motor-driven screening components and auxiliary components, continuous screening of grain screening devices for smart agriculture has been achieved, solving the problem of limited screening space in existing devices and improving screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI AGRICULTURAL DEVELOPMENT GROUP CO LTD SHANGLUO BRANCH
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-12
AI Technical Summary
Existing smart agriculture grain screening devices require periodic cleaning of impurities due to limited space in the screening mechanism and screening box, which affects grain screening efficiency and prevents continuous screening.
The motor-driven screening assembly includes a rotating shaft, connecting plate, lever, and pusher plate. It achieves continuous screening of grain through reciprocating motion. Combined with the auxiliary components, a second screen plate and a protective cover, the screening efficiency is improved.
It enables continuous grain screening without downtime, improves grain screening efficiency, and enhances the practicality of the equipment.
Smart Images

Figure CN224222000U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain screening technology, specifically a grain screening device for smart agriculture. Background Technology
[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as "cereals". Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, starch, etc. In the grain processing and production process, grain screening devices are needed to filter and remove impurities mixed in with the grains.
[0003] In response to this, Chinese Patent No. CN218013909U proposes a smart agricultural grain screening device, which includes a screening box with a door hinged to the outside of the screening box. Screening mechanisms are provided on the top and inside of the screening box, and a cleaning mechanism is provided on one side of the screening mechanism. A collection hopper is fixedly connected to the inner wall of the screening box, and a feeding hopper is fixedly connected to the top of the screening box. The screening mechanism includes a protective box, which is fixedly connected to the top of the screening box.
[0004] The aforementioned patent, through its screening mechanism, allows for grain screening by simply starting a motor. The motor's output drives a rotating shaft, which in turn drives a pusher block in a circular motion. This continuously pushes the grain for filtration, achieving good filtration efficiency and ensuring thorough screening, thus enhancing the device's practicality. However, during use, this smart agriculture grain screening device suffers from limitations. Due to the limited space between the screening mechanism and the screening box, and the need to periodically open the screening box to clean impurities to ensure screening effectiveness, the entire cleaning process consumes time. This prevents continuous grain screening, thereby affecting the grain screening efficiency. Utility Model Content
[0005] The purpose of this utility model is to provide a smart agricultural grain screening device to solve the problems mentioned in the background section. To solve the above technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a grain screening device for smart agriculture, comprising:
[0007] A screening box, wherein a rod base is fixedly provided on one side of the screening box;
[0008] A screening assembly includes a motor, one end of which is fixedly mounted on one side of a rod base. A rotating shaft is fixedly mounted on the output end of the motor. The outer wall of the rotating shaft penetrates the rod base, and a connecting plate is fixedly mounted on one end of the rotating shaft. A lever is fixedly mounted on one side of the connecting plate. A fixed frame is slidably mounted on the outer wall of the lever. A connecting bracket is fixedly mounted on one side of the fixed frame. A screening frame is fixedly mounted on the inner top of the connecting bracket. A first screening plate is fixedly mounted on the inner bottom of the screening frame. Two fixed rods penetrate one side of the screening frame, and a pusher plate is mounted on one end of both fixed rods.
[0009] Furthermore, the screening component also includes two sliders, with one side of each slider fixedly disposed on the two sides of the screening frame, and the outer wall of the sliders slidably connected to the inner wall of the screening box.
[0010] Furthermore, the other ends of the two fixing rods are respectively fixedly connected to one side of the inner wall of the screening box.
[0011] Furthermore, the bottom end of the pusher plate contacts the top end of the first screen plate.
[0012] Furthermore, it also includes an auxiliary component, which includes a second sieve plate. One end of the second sieve plate is fixedly disposed on both sides of the inner wall of the screening box. A protective frame is fixedly disposed on the top side of the second sieve plate, and a protective cover is fixedly disposed on the top of the protective frame.
[0013] Furthermore, the auxiliary component also includes two support rods, with one side of each support rod fixedly disposed on both sides of the second sieve plate, and one end of each support rod fixedly disposed on one side of the screening box.
[0014] Furthermore, one side of the protective cover is fitted to one side of the screening box.
[0015] This utility model has the following beneficial effects:
[0016] This invention comprises a motor, a screening frame, and a pusher plate. The motor drives a fixed frame to move back and forth via a connecting plate. The reciprocating movement of the fixed frame drives the screening frame to move back and forth via a connecting frame. Together with the first screen plate, grain is screened. When the screening frame moves to the right, the pusher plate pushes the grain on the first screen plate to the left. When the screening frame moves to the left, grain is added to the first screen plate on one side of the pusher plate. This cycle repeats, and as grain is added, the outermost grain on the first screen plate is discharged outwards. This method allows for continuous grain screening without stopping the machine, thus improving the screening efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the screening component structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the auxiliary component structure of this utility model.
[0021] The attached diagram lists the components represented by each number as follows:
[0022] 1. Screening box; 2. Rod base; 3. Screening assembly; 31. Motor; 32. Rotating shaft; 33. Connecting plate; 34. Pulley; 35. Fixing frame; 36. Connecting bracket; 37. Screening frame; 38. First screen plate; 39. Fixing rod; 310. Push plate; 311. Sliding bar; 4. Auxiliary assembly; 41. Second screen plate; 42. Protective frame; 43. Protective cover; 44. Support rod. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0025] Please see Figure 1-3 As shown, this utility model is a grain screening device for smart agriculture, comprising:
[0026] Screening box 1, with a rod seat 2 fixedly installed on one side of the screening box 1;
[0027] Screening box 1 is used for grain screening, and pole base 2 is used for connection and support.
[0028] The screening component 3 includes a motor 31. One end of the motor 31 is fixedly mounted on one side of the rod base 2. The output end of the motor 31 is fixedly mounted with a rotating shaft 32. The outer wall of the rotating shaft 32 penetrates the rod base 2, and one end of the rotating shaft 32 is fixedly mounted with a connecting plate 33. One end of one side of the connecting plate 33 is fixedly mounted with a lever 34. The outer wall of the lever 34 is slidably mounted with a fixing frame 35. One side of the fixing frame 35 is fixedly mounted with a connecting bracket 36. The inner top of the connecting bracket 36 is fixedly mounted with a screening frame 37. The inner bottom of the screening frame 37 is fixedly mounted with a first screening plate 38. Two fixing rods 39 penetrate one side of the screening frame 37. One end of the two fixing rods 39 is jointly mounted with a pusher plate 310.
[0029] The motor 31 is used to provide the driving force required for the first screen plate 38 to move left and right for screening. The rotating shaft 32 is connected to the bearing of the rod seat 2. The outer diameter of the push block 34 is adapted to the width of the inner wall of the fixed frame 35. The screening frame 37 is U-shaped, which facilitates the feeding of grain after screening on the first screen plate 38. The pusher plate 310 can push the grain on its surface outward when the first screen plate 38 moves.
[0030] The screening component 3 also includes two sliders 311, with the opposite sides of the two sliders 311 fixedly disposed on both sides of the screening frame 37, and the outer wall of the sliders 311 slidably connected to the inner wall of the screening box 1.
[0031] The slider 311 is used to limit the movement of the screening box 37 so that it can move horizontally. Both sides of the inner wall of the screening box 1 are provided with sliding grooves that are compatible with the slider 311.
[0032] The other ends of the two fixing rods 39 are fixedly connected to one side of the inner wall of the screening box 1, respectively.
[0033] The bottom end of the pusher plate 310 contacts the top end of the first screen plate 38.
[0034] Working principle: The grain to be screened is inverted onto the first screen plate 38 near the pusher plate 310. Then, the motor 31 is turned on. The motor 31 drives the connecting plate 33 to rotate via the rotating shaft 32. During the rotation of the connecting plate 33 to 180 degrees, it drives the fixed frame 35 to move to the right via the toggle block 34. The movement of the fixed frame 35 to the right drives the screening frame 37 to move to the right via the connecting frame 36. When the connecting plate 33 continues to rotate to 360 degrees, it drives the fixed frame 35 to move to the left via the toggle block 34, which in turn drives the screening frame 37 to move to the left. This process is repeated continuously, and the grain is screened in conjunction with the action of the first screen plate 38. The screened impurities fall downwards. At this time, when the screening frame 37 moves to the right again, the grain on the first screen plate 38 is pushed to the left by the pusher plate 310. When the screening frame 37 moves to the left, grain is added to the first screen plate 38 on one side of the pusher plate 310. This cycle is repeated, and as grain is added, the outermost grain is discharged outwards. In this way, continuous grain screening can be performed without stopping the machine, thereby improving the grain screening efficiency.
[0035] Please see Figure 1-3 As shown, this embodiment, based on the above embodiment, further includes:
[0036] Auxiliary component 4 includes a second screen plate 41. One end of the second screen plate 41 is fixedly installed on both sides of the inner wall of the screening box 1. A protective frame 42 is fixedly installed on the top edge of the second screen plate 41. A protective cover 43 is fixedly installed on the top of the protective frame 42.
[0037] The second sieve plate 41 is inclined and can assist in screening the screened grain. The protective frame 42 is used to protect the grain that falls onto the second sieve plate 41 and prevent it from falling from the side of the second sieve plate 41. The protective cover 43 is used to protect the grain that falls onto the second sieve plate 41. During the movement of the first sieve plate 38, it is always located directly above the second sieve plate 41, and the sieve holes on its surface are not directly above the second sieve plate 41.
[0038] The auxiliary component 4 also includes two support rods 44, with one side of each support rod 44 fixedly disposed on the two sides of the second screen plate 41, and one end of each support rod 44 fixedly disposed on one side of the screening box 1.
[0039] The support rod 44 is used to provide auxiliary support for the second screen plate 41, thereby improving its overall stability.
[0040] One side of the protective cover 43 is attached to one side of the screening box 1;
[0041] Working principle: After the grain on the first screen plate 38 is screened and unloaded from the first screen plate 38, it will fall down onto the second screen plate 41 and slide down along the second screen plate 41. The second screen plate 41 assists in screening the grain, thus further improving the screening effect of the grain.
[0042] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A grain screening device for smart agriculture, characterized in that, include: A screening box (1) is provided with a rod seat (2) fixed on one side; The screening component (3) includes a motor (31), one end of which is fixedly mounted on one side of the rod seat (2). The output end of the motor (31) is fixedly provided with a rotating shaft (32). The outer wall of the rotating shaft (32) passes through the rod seat (2), and one end of the rotating shaft (32) is fixedly provided with a connecting plate (33). One end of one side of the connecting plate (33) is fixedly provided with a lever (34). The outer wall of the lever (34) is slidably provided with a fixing frame (35). One side of the fixing frame (35) is fixedly provided with a connecting frame (36). The inner top of the connecting frame (36) is fixedly provided with a screening frame (37). The inner bottom of the screening frame (37) is fixedly provided with a first screen plate (38). One side of the screening frame (37) is provided with two fixing rods (39). One end of the two fixing rods (39) is jointly provided with a pusher plate (310).
2. The grain screening device for smart agriculture according to claim 1, characterized in that: The screening component (3) also includes two sliders (311), with the opposite sides of the two sliders (311) fixedly disposed on both sides of the screening frame (37), and the outer wall of the slider (311) slidably connected to the inner wall of the screening box (1).
3. The grain screening device for smart agriculture according to claim 1, characterized in that: The other ends of the two fixing rods (39) are respectively fixedly connected to one side of the inner wall of the screening box (1).
4. The grain screening device for smart agriculture according to claim 1, characterized in that: The bottom end of the pusher plate (310) is in contact with the top end of the first screen plate (38).
5. A grain screening device for smart agriculture according to claim 1, characterized in that: It also includes an auxiliary component (4), which includes a second sieve plate (41). One end of the second sieve plate (41) is fixedly installed on both sides of the inner wall of the screening box (1). A protective frame (42) is fixedly installed on the side of the top of the second sieve plate (41), and a protective cover (43) is fixedly installed on the top of the protective frame (42).
6. A grain screening device for smart agriculture according to claim 5, characterized in that: The auxiliary component (4) also includes two support rods (44), with one side of each support rod (44) fixedly disposed on the opposite side of the second screen plate (41), and one end of each support rod (44) fixedly disposed on one side of the screening box (1).
7. A grain screening device for smart agriculture according to claim 5, characterized in that: One side of the protective cover (43) is attached to one side of the screening box (1).