A screening device for ecological agricultural products

By introducing an auxiliary cleaning mechanism into the organic agricultural product screening device, and utilizing the combination of a counterweight plate and an air blowing head, the problem of sieve plate clogging was solved, achieving efficient seed screening and production continuity, and improving screening efficiency.

CN224405754UActive Publication Date: 2026-06-26HUBEI JINGYU YOUXUAN AGRICULTURAL PRODUCTS SUPPLY CHAIN CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI JINGYU YOUXUAN AGRICULTURAL PRODUCTS SUPPLY CHAIN CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-26

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Abstract

The utility model relates to the field of agricultural product screening, disclose a kind of screening device for ecological agricultural product, it include: screening box, fixedly arranged in the screening box is with frame, fixedly arranged with sieve plate on the frame, auxiliary cleaning mechanism is arranged on the screening box;The auxiliary cleaning mechanism includes counterweight sleeve board, main pipe, air blowing head, connecting pipe, tow belt, tow plate, positioning insert and guide rod;The guide rod is fixedly installed in the inside of screening box, the counterweight sleeve board is slidably covered in the outside of guide rod, the main pipe is fixedly installed on counterweight sleeve board, the air blowing head and connecting pipe are all fixedly connected with main pipe, the tow belt is fixedly connected with counterweight sleeve board and tow plate, the positioning insert is clamped with tow plate.This utility model has the following advantages and effects: when the sieve plate is blocked, the sieve plate 3 can be quickly and efficiently cleaned, so the subsequent screening effect of the sieve plate on ecological agricultural products can be guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of agricultural product screening technology, and in particular to a screening device for ecological agricultural products. Background Technology

[0002] Organic agricultural products follow ecological agricultural production standards and principles, minimizing negative environmental impacts during production, emphasizing ecological balance and sustainable resource utilization. Before planting, organic agricultural products require seed screening to select large, plump, and uniform high-quality seeds to improve seed quality.

[0003] In existing technologies, seed screening is often performed by placing the seeds on a sieve plate and screening them through the sieve plate. However, after prolonged use, the sieve plate may become clogged and difficult to clean, which reduces the screening efficiency of the seeds. Therefore, it is necessary to design a screening device for organic agricultural products to solve the above problems.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for organic agricultural products to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a screening device for ecological agricultural products, comprising:

[0007] A screening box, wherein a frame is fixedly installed inside the screening box, a sieve plate is fixedly installed on the frame, and an auxiliary cleaning mechanism is provided on the screening box;

[0008] The auxiliary cleaning mechanism includes a counterweight plate, a main pipe, an air blowing head, a connecting pipe, a traction belt, a traction plate, a positioning plug, and a guide rod;

[0009] The guide rod is fixedly installed inside the screening box, the counterweight sleeve is slidably sleeved on the outside of the guide rod, the main pipe is fixedly installed on the counterweight sleeve, the air blowing head and the connecting pipe are both fixedly connected to the main pipe, the traction belt is fixedly connected to the counterweight sleeve and the traction plate, and the positioning plug is engaged with the traction plate.

[0010] A further feature of this invention is that the auxiliary cleaning mechanism includes a fixing screw, a support frame, and a guide wheel. The support frame is fixedly installed at the bottom of the screening box, the positioning plug is slidably installed on the support frame, the positioning plug is fixedly installed on the support frame by the fixing screw, the guide wheel is installed on the side of the screening box, and the traction belt is wound around the guide wheel.

[0011] A further feature of this invention is that a discharge port is provided on the side of the screening box, and an auxiliary discharge plate is fixedly provided on the side of the screening box.

[0012] By adopting the above technical solution, material discharge is facilitated.

[0013] A further feature of this invention is that an ecological agricultural product addition hopper is fixedly installed on the top of the screening box, and a vibration motor is fixedly installed on the front side of the screening box.

[0014] A further feature of this invention is that a discharge port is provided at the bottom of the screening box.

[0015] By adopting the above technical solution, material discharge processing is facilitated.

[0016] A further feature of this invention is that a sliding groove is provided on the side of the screening box, and a traction plate is vertically slidably installed in the sliding groove.

[0017] By adopting the above technical solution, the traction plate can be moved stably in the vertical direction.

[0018] A further feature of this invention is that a baffle is fixedly sleeved on the outer side of the guide rod, and a counterweight sleeve plate contacts the baffle.

[0019] A further feature of this invention is that a positioning hole is provided on the side of the traction plate, and the positioning plug is engaged with the positioning hole.

[0020] A further feature of this invention is that the screening box has a through hole, and the connecting pipe is slidably installed in the through hole.

[0021] A further feature of this invention is that the screening box has holes, and the traction belt contacts the inner wall of the holes.

[0022] The beneficial effects of this utility model are:

[0023] This invention utilizes an auxiliary cleaning mechanism, combining a counterweight plate and an air blower, to eliminate the need for manual cleaning when the sieve plate becomes clogged. The counterweight plate, under gravity, moves the air blower, expelling high-pressure air to quickly clear the blockage. Compared to the traditional method of manually disassembling and cleaning the sieve plate, this significantly reduces cleaning time, prevents reduced screening efficiency due to sieve plate blockage, ensures the continuity of screening work, reduces downtime, improves production efficiency, and guarantees the effectiveness of the sieve plate in screening organic agricultural products. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the 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.

[0025] Figure 1 This is a schematic diagram of the structure of a screening device for ecological agricultural products proposed in this utility model.

[0026] Figure 2 This is a cross-sectional structural schematic diagram of a screening device for ecological agricultural products proposed in this utility model.

[0027] Figure 3 yes Figure 2 A schematic diagram of part A in the diagram.

[0028] Figure 4 yes Figure 2 A schematic diagram of part B in the diagram.

[0029] In the diagram, 1. Screening box; 2. Frame; 3. Screen plate; 4. Vibration motor; 5. Counterweight sleeve; 6. Main pipe; 7. Air blowing head; 8. Connecting pipe; 9. Organic agricultural product adding hopper; 10. Auxiliary discharge plate; 11. Traction belt; 12. Traction plate; 13. Positioning plug; 14. Fixing screw; 15. Support frame; 16. Baffle plate; 17. Guide rod. Detailed Implementation

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" 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; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0031] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0032] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a screening device for ecological agricultural products, comprising:

[0033] Screening box 1, a frame 2 is fixedly installed inside the screening box 1, a sieve plate 3 is fixedly installed on the frame 2, and an auxiliary cleaning mechanism is installed on the screening box 1. It should be noted that when the sieve plate 3 is blocked, it can quickly and efficiently clean the sieve plate 3, so as to ensure the effect of the sieve plate 3 in screening organic agricultural products.

[0034] The auxiliary cleaning mechanism includes a counterweight plate 5, a main pipe 6, an air blowing head 7, a connecting pipe 8, a traction belt 11, a traction plate 12, a positioning plug 13, and a guide rod 17;

[0035] The guide rod 17 is fixedly installed inside the screening box 1, and the counterweight sleeve 5 is slidably sleeved on the outside of the guide rod 17. It should be noted that if impurities fall on the outside of the guide rod 17, it will not affect the movement of the counterweight sleeve 5. The counterweight sleeve 5 can clean the impurities on the guide rod 17 during the movement.

[0036] The main pipe 6 is fixedly installed on the counterweight sleeve 5. The air blowing head 7 and the connecting pipe 8 are both fixedly connected to the main pipe 6. It should be noted that the connecting pipe 8 is connected to an external hose, and the hose is connected to an external air pump for air supply.

[0037] The traction belt 11 is fixedly connected to the counterweight sleeve 5 and the traction plate 12, and the positioning plug 13 is engaged with the traction plate 12.

[0038] With the above structure, when it is necessary to clean the screen plate 3, first release the limit on the traction plate 12, turn on the external air pump, and the counterweight sleeve 5 moves on the guide rod 17 due to its own weight. During the movement, it will drive the main pipe 6 and the air blower 7 to move synchronously. The air blower 7 will blow out high-pressure air during the movement, blowing it towards the screen plate 3 and blowing the blockage in the screen plate 3 upward. In this way, the screen plate 3 can be cleaned. During the movement of the counterweight sleeve 5 due to its own weight, the personnel assist in controlling the traction plate 12 to keep the moving speed as constant as possible to ensure the cleaning effect. After the cleaning is completed, pull the traction plate 12 to return the counterweight sleeve 5 to its original position, and then lock the traction plate 12 for convenient subsequent use.

[0039] Specifically, the auxiliary cleaning mechanism also includes fixing screws 14, support frame 15 and guide wheel. The support frame 15 is fixedly installed at the bottom of the screening box 1. The positioning plug 13 is slidably installed on the support frame 15. The positioning plug 13 is fixedly installed on the support frame 15 by fixing screws 14. The guide wheel is installed on the side of the screening box 1. The traction belt 11 is wound around the guide wheel.

[0040] With the above structure, the positioning plug 13 can be limited to ensure its stability. When locked by the fixing screw 14, a high friction pad can be used to improve the stability of the connection and prevent the fixing screw 14 from loosening when the vibration motor 4 is working.

[0041] Specifically, the screening box 1 has a discharge port on its side, an auxiliary discharge plate 10 is fixedly installed on the side of the screening box 1, an organic agricultural product addition hopper 9 is fixedly installed on the top of the screening box 1, a vibration motor 4 is fixedly installed on the front of the screening box 1, and a discharge port is opened at the bottom of the screening box 1. It should be noted that this makes it convenient to screen organic agricultural products.

[0042] Specifically, a sliding groove is provided on the side of the screening box 1, and the traction plate 12 is vertically slidably installed in the sliding groove. It should be noted that this allows the traction plate 12 to move stably in the vertical direction.

[0043] Specifically, a baffle 16 is fixedly sleeved on the outside of the guide rod 17, and the counterweight sleeve 5 is in contact with the baffle 16. It should be noted that the counterweight sleeve 5 can be limited.

[0044] Specifically, the traction plate 12 has a positioning hole on its side, and the positioning plug 13 is engaged with the positioning hole. It should be noted that the traction plate 12 can be limited.

[0045] Specifically, the screening box 1 has a through hole, and the connecting pipe 8 is slidably installed in the through hole. The screening box 1 also has a perforated section, and the traction belt 11 contacts the inner wall of the perforated section. It should be noted that this facilitates the movement of the traction belt 11 and the connecting pipe 8.

[0046] Working principle:

[0047] S1: When screening organic agricultural products, the operator first pours the agricultural products into the screening box 1 through the organic agricultural product addition hopper 9 at the top of the screening box 1. Then, the vibrating motor 4 fixedly installed on the front of the screening box 1 is turned on. The vibration generated by the vibrating motor 4 is transmitted to the frame 2 inside the screening box 1 and the sieve plate 3 fixed on the frame 2. Under the action of vibration, the agricultural products jump and roll continuously on the sieve plate 3. Smaller particles of agricultural products that meet the size of the sieve holes of the sieve plate 3 will pass through the sieve holes and be discharged from the discharge port at the bottom of the screening box 1, thus completing the screening. Larger particles of agricultural products will remain on the sieve plate 3 and be discharged from the screening box 1 through the discharge port on the side of the screening box 1 under the guidance of the auxiliary discharge plate 10, thereby realizing the separation and screening of agricultural products of different sizes.

[0048] S2: As the screening work continues, the screen plate 3 may become clogged. At this time, it is necessary to start the auxiliary cleaning mechanism to clean the screen plate 3. First, the operator releases the limit on the traction plate 12, that is, loosens the fixing screw 14 and pulls the positioning plug 13 out of the positioning hole on the side of the traction plate 12. Then, the air pump connected to the connecting pipe 8 is turned on. The high-pressure air generated by the air pump enters the main pipe 6 through the hose and the connecting pipe 8, and is then blown out through the air blower 7 fixedly connected to the main pipe 6. Since the counterweight plate 5 has a certain weight and is slidably sleeved on the outside of the guide rod 17 fixedly installed inside the screening box 1, after the limit on the traction plate 12 is released, the counterweight plate 5 will move downward along the guide rod 17 under its own weight. During the movement, the counterweight plate 5 drives the main pipe 6 fixedly installed on it and the air blower 7 to move synchronously. During the movement, the air blower 7 continuously blows high-pressure air to the screen plate 3, blowing the blockage in the screen plate 3 upward, thus cleaning the screen plate 3.

[0049] S3: During the downward movement of the counterweight plate 5 due to its own weight, the operator needs to assist in controlling the traction plate 12. By controlling the vertical movement speed of the traction plate 12 within the side groove of the screening box 1, the operator should try to keep the movement speed of the counterweight plate 5 constant to ensure that the air blowing head 7 cleans the screen plate 3 evenly and efficiently. After the screen plate 3 is cleaned, the operator pulls the traction plate 12, which drives the counterweight plate 5 upward along the guide rod 17 via the traction belt 11, returning it to its original position. Subsequently, the positioning plug 13 is inserted into the positioning hole on the side of the traction plate 12, and the positioning plug 13 is fixedly installed on the support frame 15 at the bottom of the screening box 1 using the fixing screw 14 to limit and fix the traction plate 12, so as to facilitate the smooth progress of subsequent screening work.

[0050] The above provides a detailed description of the screening device for ecological agricultural products provided by this utility model. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A screening device for ecological agricultural products, characterized by, include: A screening box (1) is provided with a frame (2) fixedly installed inside the screening box (1), a sieve plate (3) is fixedly installed on the frame (2), and an auxiliary cleaning mechanism is provided on the screening box (1). The auxiliary cleaning mechanism includes a counterweight plate (5), a main pipe (6), an air blowing head (7), a connecting pipe (8), a traction belt (11), a traction plate (12), a positioning plug (13), and a guide rod (17); The guide rod (17) is fixedly installed inside the screening box (1). The counterweight sleeve (5) is slidably sleeved on the outside of the guide rod (17). The main pipe (6) is fixedly installed on the counterweight sleeve (5). The air blowing head (7) and the connecting pipe (8) are both fixedly connected to the main pipe (6). The traction belt (11) is fixedly connected to the counterweight sleeve (5) and the traction plate (12). The positioning plug (13) is engaged with the traction plate (12).

2. The screening device for ecological agricultural products according to claim 1, characterized in that, The auxiliary cleaning mechanism also includes a fixing screw (14), a support frame (15) and a guide wheel. The support frame (15) is fixedly installed at the bottom of the screening box (1). The positioning plug (13) is slidably installed on the support frame (15). The positioning plug (13) is fixedly installed on the support frame (15) by the fixing screw (14). The guide wheel is installed on the side of the screening box (1). The traction belt (11) is wound around the guide wheel.

3. The screening device for ecological agricultural products according to claim 1, characterized in that, The screening box (1) has a discharge port on its side, and an auxiliary discharge plate (10) is fixedly installed on the side of the screening box (1).

4. The screening device for ecological agricultural products according to claim 1, characterized in that, An ecological agricultural product addition hopper (9) is fixedly installed on the top of the screening box (1), and a vibration motor (4) is fixedly installed on the front side of the screening box (1).

5. A screening device for ecological agricultural products according to claim 1, characterized in that, The bottom of the screening box (1) is provided with a discharge port.

6. The screening device for ecological agricultural products according to claim 1, characterized in that, The screening box (1) has a sliding groove on its side, and the traction plate (12) is vertically slidably installed in the sliding groove.

7. A screening device for ecological agricultural products according to claim 1, characterized in that, A baffle (16) is fixedly sleeved on the outside of the guide rod (17), and the counterweight sleeve (5) is in contact with the baffle (16).

8. A screening device for ecological agricultural products according to claim 1, characterized in that, The traction plate (12) has a positioning hole on its side, and the positioning plug (13) is engaged with the positioning hole.

9. A screening device for ecological agricultural products according to claim 1, characterized in that, The screening box (1) has a through hole, and the connecting pipe (8) is slidably installed in the through hole.

10. A screening device for ecological agricultural products according to claim 1, characterized in that, The screening box (1) has a hole, and the traction belt (11) is in contact with the inner wall of the hole.