Screening device for agricultural product production
By introducing negative pressure components and power components into the screening device, combined with ash receiving trays and baffle structures, the problem of dust pollution during agricultural product screening is solved, achieving automatic dust cleaning and improved screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU MEINIANHUA CLOUD KITCHEN TECHNOLOGY CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
AI Technical Summary
In the current agricultural product screening process, the soil and debris carried by the agricultural products generate a large amount of dust during screening, which seriously affects the screening environment and is difficult to clean effectively.
A screening device was designed, comprising a negative pressure component and a power component. The negative pressure component generates negative pressure within the screening plate to draw in floating dust, while the power component drives the screening plate to shake. Combined with the dust collection tray and baffle structure, the impact force of large dust particles is reduced, thereby achieving automatic dust removal.
It effectively cleans up the dust generated during the screening process, improves screening efficiency and environmental cleanliness, and reduces the impact of dust on the surrounding environment.
Smart Images
Figure CN224272079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of agricultural product production, and in particular to a screening device for agricultural product production. Background Technology
[0002] Agricultural product screening is a crucial step in agricultural production and processing, involving the classification, impurity removal, and quality control of agricultural products. With technological advancements, screening equipment and methods are constantly being innovated to improve efficiency and accuracy. Screening machines typically utilize physical properties such as wind power, gravity, and electrostatics, achieving automatic material separation through mechanical structures.
[0003] In existing technologies, agricultural products inevitably carry soil, debris, and other impurities during harvesting, and screening inevitably disrupts the products. When the products are disrupted, the soil, debris, and other waste carried by them are shaken off, filling the screening environment with dust. In particular, when agricultural products are fed into the screening machine, dust may even be backflowed at the feeding port, seriously affecting the screening environment of agricultural products. Utility Model Content
[0004] This application provides a screening device for agricultural product production, which cleans up the dust generated by the shaking of agricultural products while screening them, thus avoiding the impact of screening on the surrounding environment and effectively improving the screening effect of agricultural products.
[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:
[0006] A screening device for agricultural product production includes:
[0007] The shell has a working groove on its side wall, and a sealing plate is hinged to the opening of the working groove. The top of the shell has a feeding port that communicates with the working groove.
[0008] The screening plate is provided in multiples, which are arranged at intervals from top to bottom in the working trough for screening agricultural products. Screening holes are evenly distributed on the surface of the screening plate, and the screening plate is hollow with a cavity. The inner wall of the screening holes has an air inlet that communicates with the cavity.
[0009] The power unit, located on the left side of the housing, is used to drive the screen plate to oscillate.
[0010] The negative pressure assembly, located on the right side of the housing, is used to generate negative pressure in the cavity. The negative pressure assembly includes a sleeve, a piston, and a connecting plate. The right side wall of the housing has a circular hole communicating with the working groove. The sleeve is fixedly connected in the circular hole. A one-way valve is located on the right side of the sleeve. The piston is slidably connected to the left side of the sleeve. The side of the piston extending out of the sleeve is connected to the screening plate through the connecting plate. An air passage communicating with the cavity is located on the side wall of the piston. A one-way valve is located on the right side of the air passage.
[0011] Furthermore, the power assembly includes a crankshaft, push rods, and a second connecting plate. The crankshaft is rotatably connected to the left side of the working groove. Multiple push rods are spaced apart on the crankshaft. The side of the push rods away from the crankshaft is rotatably connected to the second connecting plate. The side of the second connecting plate away from the crankshaft is slidably connected to the screening plate.
[0012] Furthermore, the left horizontal position of the screening plate is higher than the right horizontal position of the screening plate, so that the screening plate is inclined in the working groove, and the right side of the shell is provided with a discharge port corresponding to the right side position of the screening plate.
[0013] Furthermore, the right side wall of the working trough is machined with a guide surface for guiding agricultural products to the discharge port.
[0014] Furthermore, the screening plate is mainly composed of a main plate and a sub-plate. The main plate and the sub-plate are provided with grooves on opposite sides, so that the two grooves are joined together to form a cavity.
[0015] Furthermore, a ash receiving tray is slidably connected to the bottom of the working trough, a partition is slidably connected inside the ash receiving tray, and a spring is fixedly connected between the bottom of the partition and the bottom of the ash receiving tray.
[0016] In summary, this utility model has at least one of the following beneficial technical effects:
[0017] 1. A screening device for agricultural production, through the setting of a negative pressure component, can drive the piston to move when the screening plate moves back and forth, thereby changing the size of the space inside the sleeve. At this time, a negative pressure can be generated in the cavity inside the screening plate, which is used to draw dust into the cavity through the air inlet, thereby realizing the screening of crops while removing dust floating in the air, thus effectively improving the practicality of the screening device.
[0018] 2. This screening device for agricultural production, through the setting of a dust receiving plate, baffle and spring, can reduce the impact force on large dust particles when they fall, and prevent them from being crushed and generating small dust particles that can float in the air, thereby reducing the dust removal pressure of the negative pressure component and the screening plate during operation. Attached Figure Description
[0019] 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.
[0020] Figure 1 This is a schematic diagram of the structure of a screening device for agricultural product production according to the present invention.
[0021] Figure 2 This is a schematic diagram of the power component in a screening device for agricultural product production according to the present invention.
[0022] Figure 3 This is a schematic diagram of the location and structure of the discharge port in a screening device for agricultural production according to the present invention.
[0023] Figure 4 This is a schematic diagram of the negative pressure component in a screening device for agricultural product production according to this utility model.
[0024] Figure 5 This is a schematic diagram of the structure of a screening plate in a screening device for agricultural product production according to this utility model.
[0025] Figure 6 This is a schematic diagram of the ash receiving tray in a screening device for agricultural product production according to the present invention.
[0026] In the diagram, 1. Shell; 2. Screening plate; 21. Main plate; 22. Sub-plate; 3. Power assembly; 31. Crankshaft; 32. Push rod; 33. Connecting plate II; 4. Negative pressure assembly; 41. Sleeve; 42. Piston; 43. Connecting plate I; 5. Working groove; 6. Sealing plate; 7. Feed port; 8. Screening hole; 9. Cavity; 10. Air inlet; 11. Round hole; 12. One-way valve I; 13. Air passage; 14. One-way valve II; 15. Discharge port; 16. Guide surface; 17. Ash receiving tray; 18. Partition plate; 19. Spring. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings.
[0028] Example:
[0029] Reference Figures 1-6 The present invention discloses a screening device for agricultural product production, comprising:
[0030] The shell 1 has a working groove 5 on its side wall, and a sealing plate 6 is hinged to the opening of the working groove 5. The top of the shell 1 has a feeding port 7 that communicates with the working groove 5.
[0031] Screening plates 2 are provided in multiple ways. Multiple screening plates 2 are arranged at intervals from top to bottom in the working groove 5 for screening agricultural products. Screening holes 8 are evenly distributed on the surface of the screening plates 2. A cavity 9 is provided in the hollow part of the screening plates 2. An air inlet 10 communicating with the cavity 9 is opened on the inner wall of the screening holes 8.
[0032] The power unit 3, which is located on the left side of the housing 1, is used to drive the screen plate 2 to shake.
[0033] The negative pressure component 4 is located on the right side of the housing 1 and is used to generate negative pressure in the cavity 9. The negative pressure component 4 includes a sleeve 41, a piston 42 and a connecting plate 43. The right side wall of the housing 1 has a circular hole 11 that communicates with the working groove 5. The sleeve 41 is fixedly connected in the circular hole 11. A one-way valve 12 is provided on the right side of the sleeve 41. The piston 42 is slidably connected to the left side of the sleeve 41. The side of the piston 42 that extends out of the sleeve 41 is connected to the screening plate 2 through the connecting plate 43. An air passage 13 that communicates with the cavity 9 is provided on the side wall of the piston 42. A one-way valve 14 is provided on the right side of the air passage 13.
[0034] In this embodiment, observation Figure 1 It can be seen that by setting up a shell 1, a working groove 5 is opened on the side wall of the shell 1, and multiple screening plates 2 are arranged at intervals from top to bottom in the working groove 5. Screening holes 8 are evenly distributed on the surface of the screening plates 2. A sealing plate 6 is hinged at the opening of the working groove 5. A feeding port 7 communicating with the working groove 5 is opened at the top of the shell 1. Agricultural products can be put into the working groove 5 through the feeding port 7, and the multiple screening plates 2 can be used to screen the agricultural products.
[0035] Since agricultural products inevitably carry soil, debris, and other impurities during harvesting, and screening inevitably disrupts the products, the soil, debris, and other waste carried by the products will be shaken off, filling the screening environment with dust. In particular, when agricultural products are put into the screening machine, dust may even be backflowed at the feeding port, which seriously affects the screening environment of agricultural products.
[0036] Therefore, looking towards Figure 2 It can be observed that a power assembly 3 for driving the screening plate 2 is provided on the left side of the housing 1, and a negative pressure assembly 4 for cleaning dust is provided on the right side of the housing 1, which is then combined with... Figure 4It can be seen that the sieve plate 2 is hollow and has a cavity 9. The inner wall of the sieve hole 8 is provided with an air inlet 10 that communicates with the cavity 9. The negative pressure component 4 includes a sleeve 41, a piston 42 and a connecting plate 43. The right side wall of the housing 1 is provided with a round hole 11 that communicates with the working groove 5. The sleeve 41 is fixedly connected in the round hole 11. A one-way valve 12 is provided on the right side of the sleeve 41. The piston 42 is slidably connected to the left side of the sleeve 41. The side of the piston 42 that extends out of the sleeve 41 is connected to the sieve plate 2 through the connecting plate 43. An air passage 13 that communicates with the cavity 9 is provided on the side wall of the piston 42. A one-way valve 14 is provided on the right side of the air passage 13.
[0037] At this time, when the power component 3 drives the screening plate 2 to move, the screening plate 2 will pull the connecting plate 43 to move, thereby causing the piston 42 to slide inside the sleeve 41. When the piston 42 moves to the left, the space inside the sleeve 41 increases and generates negative pressure, thereby opening the one-way valve 14. At this time, negative pressure will be generated in the cavity 9, causing the air inlet 10 to draw in air. Subsequently, the dust floating in the air will be drawn into the cavity 9 for cleaning. When the piston 42 moves to the right, the space inside the sleeve 41 is compressed. At this time, the one-way valve 14 closes and the one-way valve 12 opens, allowing the air to be discharged to the outside. This allows the screening plate 2 to continuously generate negative pressure in the cavity 9 when it moves back and forth, which can automatically clean the dust during the screening of crops.
[0038] In a further preferred embodiment of this utility model, such as Figure 2 As shown, the power assembly 3 includes a crankshaft 31, push rods 32, and connecting plate 2 33. The crankshaft 31 is rotatably connected to the left side of the working groove 5. Multiple push rods 32 are spaced apart on the crankshaft 31. The side of the push rods 32 away from the crankshaft 31 is rotatably connected to the connecting plate 2. The side of the connecting plate 2 33 away from the crankshaft 31 is slidably connected to the screening plate 2. The crankshaft 31 can be driven to rotate by a motor. Then, the connecting shaft of the eccentrically set push rods 32 on the crankshaft 31 will push the push rods 32 to move, thereby causing the push rods 32 to pull the connecting plate 2 33 to move, realizing the effect of reciprocating movement of the screening plate 2, which can effectively improve screening efficiency.
[0039] In a further preferred embodiment of this utility model, such as Figure 1 As shown, the left horizontal position of the screening plate 2 is higher than the right horizontal position of the screening plate 2, so that the screening plate 2 is tilted in the working trough 5. The right side of the shell 1 is provided with a discharge port 15 corresponding to the right side of the screening plate 2. This allows the crops intercepted by the screening plate 2 to gather in the right side area of the working trough 5 under the action of gravity, which can prevent the crops from accumulating on the left side and affecting the discharge of crops.
[0040] Meanwhile, the discharge port 15 can discharge the crops piled up on the right side of the working trough 5, which can improve the efficiency of crop feeding.
[0041] In a further preferred embodiment of this utility model, such as Figure 3 As shown, by processing a guide surface 16 on the right side wall of the working trough 5 to guide agricultural products to the discharge port 15, the crops piled on the right side of the working trough 5 can enter the discharge port 15 under the guidance of the guide surface 16, which can further improve the discharge efficiency of the screened crops.
[0042] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the screening plate 2 is mainly composed of a main plate 21 and a secondary plate 22. The main plate 21 and the secondary plate 22 are provided with grooves on opposite sides, so that the two grooves are put together to form a cavity 9. The screening plate 2 can be removed after the crop screening is completed, and then the screening plate 2 can be opened to clean the dust in the cavity 9, thereby improving the maintenance efficiency of the screening device.
[0043] In a further preferred embodiment of this utility model, such as Figure 2 As shown, a dust collection tray 17 is slidably connected to the bottom of the working trough 5, which can be used to collect large dust particles that cannot float in the air. Then look at... Figure 6 It can be seen that a partition 18 is slidably connected inside the ash receiving tray 17. A spring 19 is fixedly connected between the bottom of the partition 18 and the bottom of the ash receiving tray 17. This can reduce the impact force when large dust particles fall, preventing them from being shattered and generating small dust particles that can float in the air, thereby reducing the dust removal pressure of the negative pressure component 4 and the screening plate 2 during operation.
[0044] The implementation principle of the above embodiment is as follows: crops are put into the working trough 5 through the feeding port 7, and then the power component 3 is started to make the screening plate 2 move back and forth, and the crops are screened by screening holes 8 of different sizes.
[0045] During the screening process, the reciprocating screening plate 2 pushes the piston 42 to move, thereby changing the size of the cavity inside the sleeve 41. The negative pressure generated by the cavity change creates a negative pressure inside the cavity 9, which allows small dust particles floating in the air to be sucked into the cavity 9, achieving the effect of dust removal.
[0046] Finally, after the crop screening is completed, the sealing plate 6 can be opened, and then the screening plate 2 can be removed to clean the dust in the cavity 9 so that dust can be properly sucked up during subsequent crop screening.
[0047] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A screening device for agricultural product production, characterized in that, include: The shell (1) has a working groove (5) on its side wall. A sealing plate (6) is hinged to the opening of the working groove (5). The top of the shell (1) has a feeding port (7) that communicates with the working groove (5). Screening plate (2), which is provided in multiple ways, and multiple screening plates (2) are arranged in the working groove (5) from top to bottom for screening agricultural products. Screening holes (8) are evenly distributed on the surface of the screening plate (2). A cavity (9) is provided in the hollow part of the screening plate (2). An air inlet (10) communicating with the cavity (9) is opened on the inner wall of the screening hole (8). The power unit (3), which is located on the left side of the housing (1), is used to drive the screen plate (2) to shake. The negative pressure assembly (4) is located on the right side of the housing (1) and is used to generate negative pressure in the cavity (9). The negative pressure assembly (4) includes a sleeve (41), a piston (42) and a connecting plate (43). A circular hole (11) communicating with the working groove (5) is opened on the right side wall of the housing (1). The sleeve (41) is fixedly connected in the circular hole (11). A one-way valve (12) is provided on the right side of the sleeve (41). The piston (42) is slidably connected to the left side of the sleeve (41). The side of the piston (42) extending out of the sleeve (41) is connected to the screening plate (2) through the connecting plate (43). An air passage (13) communicating with the cavity (9) is opened on the side wall of the piston (42). A one-way valve (14) is provided on the right side of the air passage (13).
2. A screening device for agricultural product production according to claim 1, characterized in that, The power assembly (3) includes a crankshaft (31), push rods (32) and a connecting plate (33). The crankshaft (31) is rotatably connected to the left side of the working groove (5). Multiple push rods (32) are connected at intervals on the crankshaft (31). The side of the push rods (32) away from the crankshaft (31) is rotatably connected to the connecting plate (33). The side of the connecting plate (33) away from the crankshaft (31) is slidably connected to the screening plate (2).
3. A screening device for agricultural product production according to claim 2, characterized in that, The left horizontal position of the screening plate (2) is higher than the right horizontal position of the screening plate (2), so that the screening plate (2) is inclined in the working groove (5). The right side of the housing (1) is provided with a discharge port (15) corresponding to the right side of the screening plate (2).
4. A screening device for agricultural product production according to claim 3, characterized in that, The right side wall of the working trough (5) is machined with a guide surface (16) for guiding agricultural products to the discharge port (15).
5. A screening device for agricultural product production according to claim 4, characterized in that, The screening plate (2) is mainly composed of a main plate (21) and a secondary plate (22). The main plate (21) and the secondary plate (22) are respectively provided with grooves on opposite sides, so that the two grooves are joined together to form a cavity (9).
6. A screening device for agricultural product production according to claim 5, characterized in that, The bottom of the working trough (5) is slidably connected to a ash receiving tray (17), and a partition (18) is slidably connected inside the ash receiving tray (17). A spring (19) is fixedly connected between the bottom of the partition (18) and the bottom of the ash receiving tray (17).