Seed screening device convenient to adjust
By designing an easily adjustable seed screening device and utilizing a motor-driven synchronous belt transmission system, the problem of yield fluctuations caused by inconsistent seed sowing has been solved, achieving semi-automated and efficient screening and sowing, suitable for home use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGHAN UNIVERSITY
- Filing Date
- 2025-05-13
- Publication Date
- 2026-05-12
Smart Images

Figure CN224221979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seed screening technology, and in particular to a seed screening device that is easy to adjust. Background Technology
[0002] Currently, most agricultural machinery on the market relies on imports. The environment abroad differs from the geographical environment in China. Planting factors such as the number of seeds sown and the size of seeds directly lead to fluctuations in yield and unstable quality, resulting in low economic benefits.
[0003] To address this problem, this invention aims to provide a mechanized solution for sowing methods of different sizes and quantities, thereby freeing up manpower and reducing costs; therefore, the applicant proposes an easily adjustable seed sieving device.
[0004] This utility model patent application was completed with the funding support of the following projects: Hubei Provincial Higher Education Laboratory Work Research Association Funded Research Project (HSBY2022-029), Hubei Provincial Higher Education Teaching Reform Project (20240111072013). Utility Model Content
[0005] The purpose of this invention is to provide a seed sieving device that is easy to adjust, thus overcoming the shortcomings of the existing technology.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] An easily adjustable seed sieving device includes a seed storage chamber, a flow guide chamber fixedly installed at the bottom of the seed storage chamber, flow guide ramps fixedly installed on the inner walls of the left and right sides of the flow guide chamber, a rotating shaft rotatably installed on the inner side of the flow guide chamber, a sealing disc fixedly installed at the bottom of the flow guide chamber, a rotating disk fixedly installed on the outer side of the rotating shaft, the rotating disk rotatably installed on the inner side of the sealing disc, an installation groove is opened on the outer side of the rotating disk, a seed sieving block is provided on the inner side of the installation groove, a sieving hole is fixedly installed on the top of the seed sieving block, and a fixing bolt is threaded onto one side of the rotating disk and the seed sieving block.
[0008] As a further improvement to the above solution, a motor is fixedly installed on one side of the flow guide chamber, a drive shaft is fixedly installed at the output end of the motor, a first synchronous pulley is fixedly installed on the outer side of the drive shaft and the rotating shaft, and a first synchronous belt is tensioned and sleeved on the outer side of the first synchronous pulley.
[0009] As a further improvement to the above solution, a movable shaft is rotatably installed on the inner side of the seed storage chamber, and multiple stirring rods are fixedly installed on the outer side of the movable shaft.
[0010] As a further improvement to the above solution, a second synchronous pulley is fixedly installed on the outer side of the drive shaft and the movable shaft, and a second synchronous belt is tensioned and sleeved on the outer side of the second synchronous pulley.
[0011] As a further improvement to the above solution, the sealing disc is circular in shape, and a through groove is provided at the bottom of the sealing disc, with the rotating disc fitting against the inner wall of the sealing disc.
[0012] As a further improvement to the above scheme, the guide slope is triangular in shape, the seed screening block is arc-shaped, and the seed screening block is in contact with the inner wall of the sealing disc.
[0013] As a further improvement to the above solution, a threaded hole is provided on one side of the rotating disk and the seed screening block, and the fixing bolt is threadedly installed on the inside of the threaded hole.
[0014] As a further improvement to the above solution, a rotating groove is provided on one side of the sealing disc, and the rotating shaft is rotatably installed inside the rotating groove.
[0015] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0016] (1) The present invention provides an easy-to-adjust seed sieving device. Seeds are placed inside the seed storage bin, and the size of the sieving hole is set according to the size of the seeds. Seed sieving blocks of the corresponding size are installed inside the mounting groove, and the mounting groove is locked by fixing bolts. The motor can be controlled to drive the drive shaft to rotate. After the drive shaft rotates, it can drive the rotating shaft and the rotating disk to rotate through the cooperation of the first synchronous wheel and the first synchronous belt. After the rotating disk rotates, it can sow seeds in a fixed quantity, improve efficiency, semi-automation, and easy to use. Compared with traditional manual sowing, it is easier, but the cost is lower than that of large machinery, making it more suitable for daily family use. The guide slope can allow the seeds to fall to the inside of the sieving hole.
[0017] (2) The seed screening device of this utility model is easy to adjust. During the feeding process, the drive shaft can drive the movable shaft to rotate through the cooperation of the second synchronous wheel and the second synchronous belt. After the movable shaft rotates, it can drive multiple stirring rods to rotate. After the stirring rods rotate, they can stir the seeds inside the seed storage chamber, preventing the seeds from becoming blocked and difficult to feed during the feeding process. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the applicant will now briefly introduce the drawings used in the description of the embodiments. 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.
[0019] Figure 1 This is a three-dimensional structural diagram of a seed sieving device that is easy to adjust according to the present invention;
[0020] Figure 2 This is a partial three-dimensional structural diagram of a seed sieving device that is easy to adjust according to the present invention.
[0021] Figure 3 This is a partial three-dimensional structural diagram of the sealing disc and rotating disc proposed in this utility model;
[0022] Figure 4 This is a partial three-dimensional structural diagram of the sieve hole proposed in this utility model.
[0023] Explanation of reference numerals in the attached diagram: 1. Seed storage chamber; 2. Flow guide chamber; 3. Flow guide slope; 4. Rotating shaft; 5. Sealing disc; 6. Rotating disc; 7. Mounting groove; 8. Seed sieving block; 9. Sieving hole; 10. Fixing bolt; 11. Motor; 12. Drive shaft; 13. First synchronous pulley; 14. First synchronous belt; 15. Movable shaft; 16. Stirring rod; 17. Second synchronous pulley; 18. Second synchronous belt. Detailed Implementation
[0024] The applicant will now provide a clear and complete description of the technical solutions in the embodiments of this utility model, in conjunction with the accompanying drawings.
[0025] refer to Figure 1-4An easily adjustable seed sieving device includes a seed storage chamber 1, a flow guide chamber 2 fixedly installed at the bottom of the seed storage chamber 1, flow guide ramps 3 fixedly installed on the inner walls of the left and right sides of the flow guide chamber 2, a rotating shaft 4 rotatably installed on the inner side of the flow guide chamber 2, a sealing disc 5 fixedly installed at the bottom of the flow guide chamber 2, a rotating disc 6 fixedly installed on the outer side of the rotating shaft 4, the rotating disc 6 rotatably installed on the inner side of the sealing disc 5, an installation groove 7 is provided on the outer side of the rotating disc 6, a seed sieving block 8 is provided on the inner side of the installation groove 7, a sieving hole 9 is fixedly installed on the top of the seed sieving block 8, and a fixing bolt 10 is threaded onto one side of the rotating disc 6 and the seed sieving block 8; the size of the sieving hole 9 is set according to the size of the seeds. Seed screening blocks 8 of corresponding size are installed inside the mounting groove 7, and the mounting groove 7 is locked by fixing bolts 10. In a further preferred embodiment of this utility model, a motor 11 is fixedly installed on one side of the flow guide chamber 2, a drive shaft 12 is fixedly installed at the output end of the motor 11, a first synchronous pulley 13 is fixedly installed on the outer side of the drive shaft 12 and the rotating shaft 4, and a first synchronous belt 14 is tensioned on the outer side of the first synchronous pulley 13. The motor 11 drives the drive shaft 12 to rotate. After the drive shaft 12 rotates, it can drive the rotating shaft 4 and the rotating disk 6 to rotate through the cooperation of the first synchronous pulley 13 and the first synchronous belt 14. After the rotating disk 6 rotates, it can sow seeds in a fixed quantity and at a fixed time, thereby improving efficiency.
[0026] In a further preferred embodiment of this utility model, a movable shaft 15 is rotatably installed on the inner side of the seed storage chamber 1, and a plurality of stirring rods 16 are fixedly installed on the outer side of the movable shaft 15. During the feeding process, the drive shaft 12 can drive the movable shaft 15 to rotate through the cooperation of the second synchronous wheel 17 and the second synchronous belt 18. After the movable shaft 15 rotates, it can drive the plurality of stirring rods 16 to rotate. After the stirring rods 16 rotate, they can stir the seeds inside the seed storage chamber 1, preventing the seeds from becoming blocked and difficult to feed during the feeding process. In a further preferred embodiment of this utility model, a second synchronous wheel 17 is fixedly installed on the outer side of the drive shaft 12 and the movable shaft 15, and a second synchronous belt 18 is tensioned and sleeved on the outer side of the second synchronous wheel 17.
[0027] In a further preferred embodiment of this utility model, the sealing disc 5 is circular in shape, and a through groove is provided at the bottom of the sealing disc 5. The rotating disc 6 is in contact with the inner wall of the sealing disc 5. It is semi-automatic and easy to use. Compared with traditional manual sowing, it is easier, but the cost is lower than that of large machinery, making it more suitable for daily home use. The guide slope 3 allows the seeds to fall to the inside of the sieve hole 9. In a further preferred embodiment of this utility model, the guide slope 3 is triangular in shape, the seed sieve block 8 is arc-shaped, and the seed sieve block 8 is in contact with the inner wall of the sealing disc 5.
[0028] In a further preferred embodiment of the present invention, a threaded hole is provided on one side of the rotating disk 6 and the seed screening block 8, and the fixing bolt 10 is threadedly installed on the inner side of the threaded hole; in a further preferred embodiment of the present invention, a rotating groove is provided on one side of the sealing disk 5, and the rotating shaft 4 is rotatably installed on the inner side of the rotating groove.
[0029] The implementation principle of an easily adjustable seed sieving device in this application embodiment is as follows: seeds are placed inside the seed storage chamber 1, and the size of the sieving hole 9 is set according to the size of the seeds. Seed sieving blocks 8 of the corresponding size are installed inside the mounting groove 7, and the mounting groove 7 is locked by fixing bolts 10. The motor 11 can drive the drive shaft 12 to rotate. After the drive shaft 12 rotates, it can drive the rotating shaft 4 and the rotating disk 6 to rotate through the cooperation of the first synchronous wheel 13 and the first synchronous belt 14. After the rotating disk 6 rotates, it can sow seeds in a fixed quantity and a fixed number of times, which improves efficiency, is semi-automatic, easy to use, easier than traditional manual sowing, and lower in cost than large machinery. It is more suitable for daily use in the home. The guide slope 3 can make the seeds fall to the inside of the sieving hole 9.
[0030] During the feeding process, the drive shaft 12 can drive the movable shaft 15 to rotate through the cooperation of the second synchronous wheel 17 and the second synchronous belt 18. After the movable shaft 15 rotates, it can drive multiple stirring rods 16 to rotate. After the stirring rods 16 rotate, they can stir the seeds inside the seed storage chamber 1 to prevent the seeds from becoming blocked and difficult to feed during the feeding process.
[0031] The above provides a detailed description of the easily adjustable seed sieving device provided by this utility model. Specific embodiments have been used in this application to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.
Claims
1. A seed sieving device that is easy to adjust, characterized in that, include: A seed storage chamber (1) is provided. A flow guide chamber (2) is fixedly installed at the bottom of the seed storage chamber (1). Flow guide ramps (3) are fixedly installed on the inner walls of the left and right sides of the flow guide chamber (2). A rotating shaft (4) is rotatably installed on the inner side of the flow guide chamber (2). A sealing disc (5) is fixedly installed at the bottom of the flow guide chamber (2). A rotating disk (6) is fixedly installed on the outer side of the rotating shaft (4). The rotating disk (6) is rotatably installed on the inner side of the sealing disc (5). An installation groove (7) is opened on the outer side of the rotating disk (6). A seed screening block (8) is provided on the inner side of the installation groove (7). A screening hole (9) is fixedly installed on the top of the seed screening block (8). A fixing bolt (10) is threaded on one side of the rotating disk (6) and the seed screening block (8).
2. The easily adjustable seed sieving device according to claim 1, characterized in that, A motor (11) is fixedly installed on one side of the flow guide chamber (2). A drive shaft (12) is fixedly installed at the output end of the motor (11). A first synchronous pulley (13) is fixedly installed on the outer side of the drive shaft (12) and the rotating shaft (4). A first synchronous belt (14) is tensioned and sleeved on the outer side of the first synchronous pulley (13).
3. The easily adjustable seed sieving device according to claim 1, characterized in that, A movable shaft (15) is rotatably installed on the inner side of the seed storage chamber (1), and a plurality of stirring rods (16) are fixedly installed on the outer side of the movable shaft (15).
4. The easily adjustable seed sieving device according to claim 2, characterized in that, A second synchronous pulley (17) is fixedly installed on the outer side of the drive shaft (12) and the movable shaft (15), and a second synchronous belt (18) is tensioned on the outer side of the second synchronous pulley (17).
5. The easily adjustable seed sieving device according to claim 1, characterized in that, The sealing disc (5) is circular in shape, and a through groove is provided at the bottom of the sealing disc (5). The rotating disc (6) is in contact with the inner wall of the sealing disc (5).
6. The easily adjustable seed sieving device according to claim 1, characterized in that, The guide slope (3) is triangular in shape, the seed screening block (8) is arc-shaped, and the seed screening block (8) is in contact with the inner wall of the sealing disc (5).
7. The easily adjustable seed sieving device according to claim 1, characterized in that, The rotating disk (6) and the seed screening block (8) have threaded holes on one side, and the fixing bolt (10) is threadedly installed inside the threaded hole.
8. The easily adjustable seed sieving device according to claim 1, characterized in that, A rotating groove is provided on one side of the sealing disc (5), and the rotating shaft (4) is rotatably installed inside the rotating groove.