A screening device for agricultural product quality detection
By controlling the feeding speed through rotation and designing a clean exhaust pipe, the problems of unstable feeding speed and dust pollution in existing agricultural product screening devices have been solved, achieving efficient screening and a clean screening environment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIU ZHIQIANG PLANTING FARM IN MINGGUANG CITY (SOLE PROPRIETORSHIP)
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-19
AI Technical Summary
Existing agricultural product screening devices are not well controlled in terms of feeding speed, resulting in low screening efficiency and a lack of effective dust cleaning measures.
A screening device comprising a hopper, baffle, outer shell, and discharge chute was designed. The feeding speed is controlled by the rotation of the baffle and outer shell, and the feeding speed is precisely controlled and dust is removed by combining the exhaust pipe and dust collection equipment.
It improves screening efficiency and detection accuracy, ensures uniform feeding and a clean testing environment, and avoids waste of agricultural products and dust pollution.
Smart Images
Figure CN224372015U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural product testing technology, specifically to a screening device for agricultural product quality testing. Background Technology
[0002] Agricultural product quality testing is the process of inspecting and measuring the quality and safety of agricultural products. The testing content generally includes appearance quality testing, nutritional quality testing, and safety quality testing. Among them, appearance quality testing mainly focuses on indicators such as the size, shape, color, uniformity, and freshness of agricultural products. Therefore, in the process of agricultural product quality testing, it is necessary to use a screening device to screen the agricultural products by size. Since agricultural products with different particle sizes may have differences in quality, the screening device can classify agricultural products according to particle size, and then test agricultural products of different particle size grades separately, so as to more accurately understand the quality distribution of agricultural products.
[0003] CN219187639U discloses a novel screening device for agricultural product quality testing, comprising a screening box, a feed hopper connected to one side of the top of the screening box, a motor housing connected to the middle of the top of the screening box, a motor connected inside the motor housing, a rotating shaft connected to the power output end of the motor, the rotating shaft rotatably penetrating the screening box and having several drive rods evenly distributed within the screening box, several screening hoppers connected within the screening box, the rotating shaft rotatably penetrating the screening hoppers, the drive rods abutting against the screening hoppers, several protrusions evenly distributed on the screening hoppers, several fixing rings connected opposite each other within the screening box, a return spring connected between the fixing rings and the screening hoppers, and a dust collection chamber connected to the bottom of the screening box. The advantages of this invention compared to existing technologies are: easier grading and screening, and improved screening efficiency.
[0004] While the existing technology CN219187639U has many advantages in use, it still has the following problems: its screening efficiency for agricultural products is not perfect, and it lacks a structure to control the feeding speed, which causes agricultural products to concentrate in the screening device, resulting in low screening efficiency of the screen plate for agricultural products. Utility Model Content
[0005] To address the problems in the existing technology, this utility model provides a screening device for agricultural product quality testing.
[0006] The technical solution adopted by this utility model to solve its technical problem is a screening device for agricultural product quality testing, including a hopper, baffles, a shell and a discharge chute. Baffles are provided on both sides of the lower outer wall of the hopper. The shell is screwed to the lower outer wall of the baffles. Bearing seats are installed on both sides of the outer wall of the hopper. A rotating shaft is rotatably installed inside the bearing seats. A connecting plate is installed on one side of the outer wall of the rotating shaft. A fixing plate is installed on one side of the lower outer wall of the baffles. Equally spaced parallel suction pipes are inserted into the fixing plate.
[0007] By adopting the above technical solution, the baffle can be secured in a stable position at the top of the outer shell by screws, ensuring the baffle's effectiveness in blocking agricultural products. The connecting plate ensures that the outer shell rotates with the rotating shaft, allowing the outer shell to reciprocate in a circular angle during the screening process. This enables the outer shell to rotate flexibly and assist in screening the agricultural products inside, ensuring screening efficiency and quality. By controlling the overlap range of the discharge port and discharge trough through rotation, the range of agricultural products entering the outer shell can be controlled, thereby controlling the feeding speed of agricultural products and preventing them from concentrating inside the outer shell. Furthermore, the suction pipe can be connected to an external dust collection device, which can promptly remove dust and fine impurities raised during the screening process, ensuring a clean testing environment and improving testing accuracy.
[0008] Specifically, a discharge trough is provided on one side of the lower end of the inner wall of the hopper, and the inner wall of the discharge trough is equipped with guide plates that are equally spaced and parallel. Connecting frames are installed on the upper ends of the outer walls on both sides of the hopper.
[0009] By adopting the above technical solution, the agricultural products inside the hopper can be discharged into the outer shell through the discharge chute and discharge port. Since the outer shell can rotate, the overlap range of the discharge chute and discharge port can be adjusted to regulate the feed amount of agricultural products. The guide plate guides the agricultural products to be discharged in an orderly manner, ensuring the uniformity of the feed range and ensuring the efficiency of subsequent screening. The hopper can be connected to the external support structure through the connector to ensure the stability of the hopper and the outer shell in use.
[0010] Specifically, a fixing seat is installed on both sides of the outer wall of the outer shell, the connecting plate is screwed to the fixing seat, a drive motor is provided on the outer wall of one end of the rotating shaft, and the drive motor is connected to the outer wall of the hopper.
[0011] By adopting the above technical solution, the fixed seat ensures the stability of the connection between the outer shell and the connecting plate, ensures the stability and control of the trajectory of the outer shell during rotation, and the drive motor can drive the rotating shaft to rotate in a circle, which can adjust the use angle of the outer shell, while the bearing seat ensures the stability of the rotating position of the rotating shaft.
[0012] Specifically, a sealing gasket is adhered and fixed to the upper outer wall of the baffle, and the sealing gasket is in contact with the lower outer wall of the hopper. A discharge port is opened on the outer wall of the baffle, and the discharge port is corresponding to the position of the discharge trough.
[0013] By adopting the above technical solution, the sealing gasket ensures the sealing between the baffle and the hopper, preventing leakage of agricultural products during the feeding process and ensuring the accuracy of the agricultural product feeding path, thus avoiding agricultural product waste.
[0014] Specifically, the exhaust pipe has a connecting pipe inserted into the outer wall of one end of the outer casing, and a pipe joint is inserted into the outer wall of the connecting pipe at one end.
[0015] By adopting the above technical solution, the connecting pipe can be connected to an external dust collection device through a pipe joint, and the air extraction pipe can be used to extract air and dust from the discharge port and the inside of the shell, thereby controlling the cleanliness of the screening environment.
[0016] Specifically, the exhaust pipe has a sleeve threadedly connected to the outer wall of one end of the fixed plate, and a filter screen is installed inside the sleeve.
[0017] By adopting the above technical solution, the sleeve can block and protect the air inlet of the suction pipe, and the filter screen can filter impurities in the air while ensuring airflow, preventing them from entering the suction pipe and affecting the dust collection effect.
[0018] Specifically, filter plates are provided on both sides of the inner wall of the outer shell, and baffle plates are snapped onto one side of the outer wall of the outer shell. The baffle plates are positioned corresponding to the filter plates, and the filter plates are arranged at an inclined angle.
[0019] By adopting the above technical solution, the filter plate can screen agricultural products inside the shell, and multi-layer filter plates can achieve screening of multiple sizes, ensuring screening accuracy. The inclined arrangement is conducive to the rapid sliding of agricultural products under the action of gravity, ensuring screening efficiency. In addition, the baffle blocks the discharge port on the outside of the shell, and the agricultural products screened by the filter plate can be discharged in a controlled manner through the discharge port.
[0020] The beneficial effects of this utility model are:
[0021] The present invention provides a screening device for agricultural product quality testing, which allows the outer shell to rotate flexibly and assists in screening agricultural products inside the shell, ensuring screening efficiency and quality. Furthermore, by controlling the overlap between the discharge port and the discharge trough, the device can control the range of agricultural products entering the shell, thereby controlling the feeding speed of agricultural products and preventing them from concentrating inside the shell.
[0022] The present invention discloses a screening device for agricultural product quality testing. The air extraction pipe can be connected to an external dust collection device, which can promptly remove dust and fine impurities raised during the screening process, ensuring a clean testing environment and improving testing accuracy. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0024] Figure 1 This is a schematic diagram of the main body of the hopper structure of this utility model;
[0025] Figure 2 This is an exploded view of the outer shell structure of this utility model;
[0026] Figure 3 This is a cross-sectional view of the outer shell structure of this utility model;
[0027] Figure 4 This is a cross-sectional schematic diagram of the hopper structure of this utility model;
[0028] Figure 5 This is an exploded view of the air extraction pipe structure of this utility model.
[0029] In the diagram: 1. Hopper; 11. Connecting frame; 12. Discharge chute; 13. Guide plate; 14. Bearing seat; 15. Rotating shaft; 16. Connecting plate; 17. Drive motor; 2. Baffle; 21. Sealing gasket; 22. Fixing plate; 23. Air extraction pipe; 24. Connecting pipe; 25. Sleeve; 26. Discharge port; 3. Outer shell; 31. Fixing seat; 32. Filter plate; 33. Baffle. Detailed Implementation
[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0031] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the screening device for agricultural product quality testing of this utility model includes a hopper 1, a baffle 2, a shell 3, and a discharge chute 12. Baffles 2 are provided on both sides of the lower outer wall of the hopper 1. The shell 3 is screwed to the lower outer wall of the baffle 2. Bearing seats 14 are installed on both sides of the outer wall of the hopper 1. A rotating shaft 15 is rotatably installed inside the bearing seat 14. A connecting plate 16 is installed on one side of the outer wall of the rotating shaft 15. A fixing plate 22 is installed on one side of the lower outer wall of the baffle 2. Equally spaced parallel suction pipes 23 are inserted into the fixing plate 22.
[0032] During use, the baffle 2 is secured by screws to ensure its stable position at the top of the outer shell 3, guaranteeing its effectiveness in blocking agricultural products. The connecting plate 16 ensures that the outer shell 3 rotates with the rotating shaft 15, allowing it to reciprocate in a circular motion during screening. This flexible rotation of the outer shell 3 assists in screening the agricultural products inside, ensuring screening efficiency and quality. By controlling the overlap between the discharge port 26 and the discharge trough 12, the range of agricultural products entering the outer shell 3 can be controlled, thereby controlling the feeding speed and preventing concentrated entry of agricultural products into the outer shell 3. Furthermore, the suction pipe 23 connects to an external dust collection device, which can promptly remove dust and fine impurities generated during screening, ensuring a clean testing environment and improving testing accuracy.
[0033] For example, for feeding, such as Figure 4 As shown, a discharge trough 12 is provided on one side of the lower end of the inner wall of the hopper 1. The inner wall of the discharge trough 12 is equipped with parallel guide plates 13 that are equidistantly distributed. Connecting frames 11 are installed on the upper ends of the outer walls on both sides of the hopper 1.
[0034] During use, the agricultural products inside the hopper 1 can be discharged into the outer shell 3 through the discharge chute 12 and discharge port 26. Since the outer shell 3 can rotate, the overlap range of the discharge chute 12 and discharge port 26 can be adjusted to regulate the feed amount of agricultural products. The guide plate 13 guides the agricultural products to be discharged in an orderly manner, ensuring the uniformity of the feed range and ensuring the subsequent screening efficiency. The hopper 1 can be connected to the external support structure through the connector to ensure the stability of the use position of the hopper 1 and the outer shell 3.
[0035] To drive rotation, for example, such as Figure 4 As shown, both sides of the outer wall of the outer casing 3 are equipped with fixed seats 31. The connecting plate 16 is screwed to the fixed seats 31. One end of the outer wall of the rotating shaft 15 is equipped with a drive motor 17. The drive motor 17 is connected to the outer wall of the hopper 1. The rotating shaft 15 and the output shaft of the drive motor 17 are connected by a coupling. An external controller controls the operation of the drive motor 17. By controlling the operation of the drive motor 17, the external controller can control the rotation angle of the rotating shaft 15.
[0036] During use, the fixed base 31 ensures the stability of the connection between the outer shell 3 and the connecting plate 16, ensuring that the trajectory of the outer shell 3 is stable and controlled during rotation. The drive motor 17 can drive the rotating shaft 15 to rotate in a circular motion, and can adjust the operating angle of the outer shell 3. The bearing seat 14 ensures the stability of the rotation position of the rotating shaft 15.
[0037] For sealing, exemplarily, such as Figure 2As shown, a sealing gasket 21 is adhered and fixed to the upper outer wall of the baffle 2, and the sealing gasket 21 is in contact with the lower outer wall of the hopper 1. A discharge port 26 is opened on the outer wall of the baffle 2, and the discharge port 26 corresponds to the position of the discharge trough 12.
[0038] During use, the sealing gasket 21 ensures the sealing between the baffle 2 and the hopper 1, preventing leakage of agricultural products during the feeding process and ensuring the accuracy of the agricultural product feeding path, thus avoiding agricultural product waste.
[0039] For vacuuming, for example, such as Figure 5 As shown, the exhaust pipe 23 penetrates the outer wall of the outer casing 3 and is connected to a connecting pipe 24. A pipe joint is connected to the outer wall of the connecting pipe 24.
[0040] In use, the connecting pipe 24 can be connected to an external dust collection device through a pipe joint, and the suction pipe 23 can be used to suction dust from the discharge port 26 and the inside of the outer casing 3 to control the cleanliness of the screening environment.
[0041] For filtering purposes, for example, such as Figure 5 As shown, the suction pipe 23 passes through the outer wall of the fixed plate 22 and is threadedly connected to a sleeve 25. A filter screen is installed inside the sleeve 25.
[0042] When in use, the sleeve 25 can block and protect the air inlet of the suction pipe 23, and the filter screen can filter impurities in the air while ensuring air circulation, preventing them from entering the suction pipe 23 and affecting the dust collection effect. In addition, the filter screen can block agricultural products and prevent them from entering the suction pipe 23.
[0043] For screening purposes, for example, such as Figure 3 As shown, filter plates 32 are provided on both sides of the inner wall of the outer shell 3, and baffle plates 33 are equally spaced and parallelly distributed on one side of the outer wall of the outer shell 3. The baffle plates 33 are positioned corresponding to the filter plates 32, and the filter plates 32 are arranged at an inclined angle.
[0044] When in use, the filter plate 32 can screen the agricultural products inside the outer shell 3, and the multi-layer filter plate 32 enables screening of multiple sizes, ensuring screening accuracy. The inclined arrangement facilitates the rapid sliding of agricultural products under the action of gravity, ensuring screening efficiency. In addition, the baffle 2 blocks the discharge port on the outside of the outer shell 3, and the agricultural products screened by the filter plate 32 can be discharged in a controlled manner through the discharge port.
[0045] When this utility model is in use, agricultural products are placed in the hopper 1. The unloading groove 12 and the guide plate 13 on the inner wall of the hopper 1 guide the agricultural products to move in an orderly manner toward the unloading port 26. The drive motor 17 is started, and the drive motor 17 drives the rotating shaft 15 to rotate in a circle. The rotating shaft 15 drives the outer shell 3 to rotate through the connecting plate 16. By rotating the outer shell 3, the overlap range between the unloading groove 12 and the unloading port 26 can be adjusted, thereby controlling the feeding speed and feeding range of agricultural products entering the inner shell 3.
[0046] Agricultural products entering the outer shell 3 are driven to tumble and move inside the outer shell 3 as the outer shell 3 rotates back and forth. The filter plate 32 performs multi-size screening of the agricultural products. After screening, the staff manually pulls out the baffle plate 33, so that the screened agricultural products are discharged in a controlled manner through the filter plate 32 and the discharge port.
[0047] An external dust extraction device draws air from the inside of the extraction pipe 23 and the connecting pipe 24, thereby removing dust and fine impurities raised from the discharge port 26 and the inside of the outer casing 3 during the screening process.
[0048] It should be noted that this utility model is a screening device for agricultural product quality testing. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A screening device for quality detection of agricultural products, characterized by comprising: The hopper (1), baffle (2), outer shell (3) and unloading chute (12) are included. Baffle (2) is provided on both sides of the lower outer wall of the hopper (1). The outer shell (3) is screwed to the lower outer wall of the baffle (2). Bearing seats (14) are installed on both sides of the outer wall of the hopper (1). A rotating shaft (15) is rotatably installed inside the bearing seat (14). A connecting plate (16) is installed on one side of the outer wall of the rotating shaft (15). A fixing plate (22) is installed on one side of the lower outer wall of the baffle (2). Equally spaced parallel suction pipes (23) are inserted into the fixing plate (22).
2. The screening device for agricultural product quality testing according to claim 1, characterized in that, The hopper (1) has a discharge trough (12) on one side of the lower end of its inner wall. The discharge trough (12) has parallel guide plates (13) that are evenly distributed on its inner wall. The upper ends of the outer walls on both sides of the hopper (1) are equipped with connecting frames (11).
3. The screening device for agricultural product quality testing according to claim 1, characterized in that, The outer walls of both sides of the outer shell (3) are equipped with fixed seats (31), and the connecting plate (16) is screwed to the fixed seats (31). A drive motor (17) is provided on the outer wall of one end of the rotating shaft (15), and the drive motor (17) is connected to the outer wall of the hopper (1).
4. The screening device for agricultural product quality testing according to claim 1, characterized in that, A sealing gasket (21) is adhered and fixed to the upper outer wall of the baffle (2), and the sealing gasket (21) is in contact with the lower outer wall of the hopper (1). A discharge port (26) is opened on the outer wall of the baffle (2), and the discharge port (26) corresponds to the position of the discharge trough (12).
5. A screening device for agricultural product quality testing according to claim 1, characterized in that, The exhaust pipe (23) penetrates the outer wall of the outer shell (3) and is connected to a connecting pipe (24). A pipe joint is connected to the outer wall of the connecting pipe (24).
6. A screening device for agricultural product quality testing according to claim 1, characterized in that, The exhaust pipe (23) passes through the outer wall of the fixed plate (22) and is threaded to a sleeve (25). A filter screen is installed inside the sleeve (25).
7. A screening device for agricultural product quality testing according to claim 1, characterized in that, The inner walls of the outer shell (3) are provided with filter plates (32) on both sides. The outer wall of one side of the outer shell (3) is fitted with baffles (33) that are equally spaced and parallel. The baffles (33) are positioned opposite to the filter plates (32), and the filter plates (32) are arranged at an inclined angle.