Grain grading and screening equipment
By adopting a sliding connection filter plate and adjusting block structure in the grain grading and screening equipment, combined with the design of insert blocks and springs, the problem of inconvenient filter plate replacement is solved, enabling quick disassembly and installation, and improving the stability and operating efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GAN GONG COUNTY YUKOUZI RICE IND CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-15
AI Technical Summary
Existing grain grading and screening equipment requires a lot of time to disassemble fasteners when replacing filter plates, making operation inconvenient.
A grain grading and screening device was designed, which adopts a sliding connection filter plate and adjustment block structure. Through the cooperation of the insert block and slot, combined with the use of the storage spring and return spring, the filter plate can be quickly disassembled and installed.
It enables quick replacement of filter plates, improves operating efficiency, enhances equipment stability and safety, reduces frictional resistance, and extends service life.
Smart Images
Figure CN224237462U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screening equipment technology, and in particular to a grain grading and screening device. Background Technology
[0002] Against the backdrop of the agricultural industry's continuous modernization and refinement, the importance of the quality grading and screening process for grains, as a basic agricultural product widely grown and consumed globally, is becoming increasingly prominent.
[0003] In pursuit of structural compactness and stability, many devices design the filter plates and the main frame of the equipment as an integrated or semi-integrated structure. The filter plates are tightly connected to the main body of the equipment by a large number of bolts. Although this design can ensure the firmness of the filter plate installation in the early stages of equipment installation, when the filter plates wear out or become clogged due to long-term use, or need to be replaced according to different filter types and screening requirements, operators need to spend a lot of time and effort to disassemble these fasteners. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantage that when it is necessary to change according to different grain varieties and screening requirements, the operator needs to spend a lot of time disassembling the fasteners. To this end, we propose a grain grading and screening device.
[0005] To achieve the above objectives, this application adopts the following technical solution: a grain grading and screening device, comprising a screening device body, a screening hopper provided on the top of the screening device body, a filter plate slidably connected inside the screening hopper, adjustment grooves provided on both sides of the screening hopper, adjustment blocks slidably connected inside the adjustment grooves, a through groove provided at the top of the adjustment groove, an insert block fixedly connected to the top of the adjustment block, straight grooves provided on both sides of the bottom of the filter plate, and a slot provided on one side inside the straight groove.
[0006] Preferably, the filter plate has grooves on both sides inside, and sliders are fixedly connected to both sides of the filter plate, with the surface of the sliders slidingly connected to the inside of the grooves.
[0007] Preferably, the size of the insert is adapted to the size of the slot, and the surface of the insert is inserted into the interior of the slot.
[0008] Preferably, both ends of the adjustment groove are provided with sliding grooves, and both ends of the adjustment block are fixedly connected with sliding blocks, and the surface of the sliding block is slidably connected to the inside of the sliding groove.
[0009] Preferably, a shrinkage column is fixedly connected to both sides of the rear end of the filter plate, a storage spring is fixedly connected to the rear end of the shrinkage column, a push rod is fixedly connected to the front end of the storage spring, and a fixing plate is fixedly connected to the bottom of the filter plate.
[0010] Preferably, guide grooves are provided on both sides inside the shrink column, and guide blocks are fixedly connected to both ends of the push rod, with the surface of the guide block slidingly connected to the inside of the guide groove.
[0011] Preferably, a return spring is fixedly connected to the side of the adjusting block near the inside of the adjusting groove, and the side of the return spring away from the adjusting block is inserted into the inside of the adjusting groove.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, the worker pushes the adjusting block into the adjusting groove. As the adjusting block moves, it moves the insert block and releases the limiting position between the insert block and the slot, thus releasing the limiting position of the filter plate. The worker can then pull out the filter plate to achieve disassembly. This design allows the worker to select the appropriate filter plate according to the grain. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a partially enlarged structural schematic diagram of the present invention;
[0016] Figure 3 This is a partial cross-sectional view of the present invention.
[0017] Figure 4 This is a schematic diagram of the internal structure of the adjusting groove of this utility model;
[0018] Figure 5 This is a partial cross-sectional view of the shrinkage column of this utility model.
[0019] Legend: 1. Screening device body; 2. Screening hopper; 3. Filter plate; 4. Adjusting block; 5. Through groove; 6. Insert block; 7. Straight groove; 8. Slot; 9. Sliding groove; 10. Sliding block; 11. Sliding groove; 12. Sliding block; 13. Contraction column; 14. Push rod; 15. Storage spring; 16. Guide groove; 17. Guide block; 18. Return spring; 19. Adjusting groove; 20. Fixing plate. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0021] Reference Figures 1-5 As shown, this utility model provides a technical solution: a grain grading and screening device, including a screening device body 1, a screening hopper 2 on the top of the screening device body 1, a filter plate 3 slidably connected inside the screening hopper 2, adjustment grooves 19 on both sides of the screening hopper 2, adjustment blocks 4 slidably connected inside the adjustment grooves 19, a through groove 5 at the top of the adjustment groove 19, and an insert block 6 fixedly connected to the top of the adjustment block 4. Straight grooves 7 on both sides of the bottom of the filter plate 3, and a slot 8 on one side inside the straight groove 7. By pushing the adjustment block 4 into the adjustment groove 19, the adjustment block 4 moves the insert block 6, thereby releasing the limit between the insert block 6 and the slot 8, and also releasing the limit of the filter plate 3. The operator can then pull out the filter plate 3 to achieve disassembly. Through the above settings, the operator can select the appropriate filter plate 3 according to the grain.
[0022] Reference Figure 2 As shown in this embodiment: the filter plate 3 has sliding grooves 9 on both sides inside, and sliders 10 are fixedly connected to both sides of the filter plate 3. The surface of the sliders 10 is slidably connected to the inside of the sliding grooves 9. When the operator moves the filter plate 3, the filter plate 3 drives the sliders 10 to slide inside the sliding grooves 9. Through the above settings, the movement of the filter plate 3 is more stable, avoiding shaking or deviation of the filter plate 3 during the movement, thereby ensuring the accuracy and reliability of the movement of the filter plate 3. At the same time, the design of the sliders 10 sliding inside the sliding grooves 9 also facilitates the limiting of the filter plate 3, preventing the filter plate 3 from moving excessively or leaving the preset position, further improving the stability and safety of the overall structure.
[0023] Reference Figure 2 As shown in this embodiment: the size of the insert 6 is adapted to the size of the slot 8, and the surface of the insert 6 is inserted into the interior of the slot 8. By adapting the size of the insert 6 to the size of the slot 8, the insert 6 can be stably inserted into the interior of the slot 8, thereby achieving a stable connection between the filter plate 3 and another component.
[0024] Reference Figure 4As shown in this embodiment: both ends of the adjusting groove 19 are provided with sliding grooves 11, and both ends of the adjusting block 4 are fixedly connected with sliding blocks 12. The surface of the sliding block 12 is slidably connected to the inside of the sliding groove 11. When the operator moves the adjusting block 4, the adjusting block 4 drives the sliding block 12 to slide inside the sliding groove 11. Through the above settings, the adjusting block 4 is more stable during movement, avoiding operational errors caused by shaking and improving work efficiency. At the same time, the sliding connection design between the sliding block 12 and the sliding groove 11 also makes the movement of the adjusting block 4 smoother, reduces frictional resistance, and extends service life.
[0025] Reference Figure 3 and Figure 5 As shown in this embodiment: both sides of the rear end of the filter plate 3 are fixedly connected to a shrinkage column 13, the rear end of the shrinkage column 13 is fixedly connected to a storage spring 15, the front end of the storage spring 15 is fixedly connected to a push rod 14, and the bottom of the filter plate 3 is fixedly connected to a fixing plate 20. When the operator pushes the filter plate 3 into the screening hopper 2, the filter plate 3 pushes the push rod 14 to compress the storage spring 15 to store force. When the operator releases the limit of the filter plate 3, the filter plate 3 is quickly pushed under the action of the rebound force of the storage spring 15. Through the above settings, the operator can quickly pick up the filter plate 3.
[0026] Reference Figure 5 As shown in this embodiment: guide grooves 16 are provided on both sides inside the shrink column 13, and guide blocks 17 are fixedly connected to both ends of the push rod 14. The surface of the guide block 17 is slidably connected to the inside of the guide groove 16. When the operator moves the push rod 14, the push rod 14 drives the guide block 17 to slide inside the guide groove 16. Through the above settings, the push rod 14 can be more stable when moving, and it is not easy to shake or deviate, which improves the stability and reliability of the equipment. At the same time, the guide block 17 can also play a certain guiding role during the sliding process inside the guide groove 16, making the movement trajectory of the push rod 14 more accurate, further improving the precision and performance of the equipment.
[0027] Reference Figure 5As shown in this embodiment: A return spring 18 is fixedly connected to the side of the adjusting block 4 near the inside of the adjusting groove 19. The side of the return spring 18 away from the adjusting block 4 is inserted into the inside of the adjusting groove 19. When the operator pushes the adjusting block 4 into the adjusting groove 19, the adjusting block 4 compresses the return spring 18 to store force, and drives the insert 6 to release the limit between it and the slot 8, thereby achieving the function of disassembling the filter plate 3. When the operator needs to fix the filter plate 3, the insert 6 is aligned with the slot 8 and the adjusting block 4 is released. Under the action of the return spring 18, the return spring 18 quickly inserts into the inside of the adjusting groove 19 and fits tightly with the slot 8, thereby firmly fixing the filter plate 3.
[0028] Working principle: By pushing the adjusting block 4 into the adjusting groove 19, the operator moves the insert block 6, releasing it from its limiting position with the slot 8. This also releases the limiting position of the filter plate 3, allowing the operator to remove it for disassembly. This design allows the operator to select the appropriate filter plate 3 according to the grain. When the operator moves the filter plate 3, it drives the slider 10 to slide within the groove 9. This design makes the movement of the filter plate 3 more stable, preventing it from shaking or shifting during movement, thus ensuring the accuracy and reliability of the filter plate 3's movement. Simultaneously, the slider 10... The sliding design inside the groove 9 facilitates the limiting of the filter plate 3, preventing excessive movement or displacement from the preset position, further improving the stability and safety of the overall structure. The matching size of the insert 6 with the slot 8 ensures stable insertion of the insert 6 into the slot 8, achieving a secure connection between the filter plate 3 and another component. When the operator moves the adjusting block 4, the adjusting block 4 drives the sliding block 12 to slide inside the sliding groove 11. This design makes the adjusting block 4 more stable during movement, avoiding operational errors caused by shaking and improving work efficiency. Simultaneously, the sliding connection design between the sliding block 12 and the sliding groove 11... This design also makes the movement of the adjusting block 4 smoother, reduces frictional resistance, and extends service life. When the operator pushes the filter plate 3 into the screening hopper 2, the filter plate 3 pushes the push rod 14 to compress the storage spring 15 and store energy. When the operator releases the limit of the filter plate 3, the filter plate 3 is quickly pushed back by the rebound force of the storage spring 15. This design allows the operator to quickly pick up the filter plate 3. When the operator moves the push rod 14, the push rod 14 drives the guide block 17 to slide inside the guide groove 16. This design makes the push rod 14 more stable during movement, less prone to shaking or deviation, and improves the stability and reliability of the equipment. Meanwhile, the guide block 17 also plays a guiding role during the sliding process inside the guide groove 16, making the movement trajectory of the push rod 14 more accurate, further improving the precision and performance of the equipment. When the operator pushes the adjusting block 4 into the adjusting groove 19, the adjusting block 4 compresses the return spring 18 to store force, and drives the insert block 6 to release the limit between it and the slot 8, thereby achieving the function of disassembling the filter plate 3. When the operator needs to fix the filter plate 3, the insert block 6 is aligned with the slot 8 and the adjusting block 4 is released. Under the action of the return spring 18, the return spring 18 quickly inserts into the adjusting groove 19 and fits tightly with the slot 8, thereby firmly fixing the filter plate 3.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A grain grading and screening device, comprising a screening device body (1), characterized in that: The top of the screening device body (1) is provided with a screening hopper (2), and a filter plate (3) is slidably connected inside the screening hopper (2). Adjustment grooves (19) are provided on both sides of the screening hopper (2). Adjustment blocks (4) are slidably connected inside the adjustment grooves (19). A through groove (5) is provided at the top of the adjustment groove (19). An insert block (6) is fixedly connected to the top of the adjustment block (4). Straight grooves (7) are provided on both sides of the bottom of the filter plate (3). A slot (8) is provided on one side of the straight groove (7).
2. The grain grading and screening device according to claim 1, characterized in that: The filter plate (3) has grooves (9) on both sides inside. Slider (10) is fixedly connected to both sides of the filter plate (3). The surface of the slider (10) is slidably connected to the inside of the groove (9).
3. The grain grading and screening device according to claim 1, characterized in that: The size of the insert (6) is adapted to the size of the slot (8), and the surface of the insert (6) is inserted into the interior of the slot (8).
4. The grain grading and screening device according to claim 1, characterized in that: The adjustment groove (19) has sliding grooves (11) at both ends, and the adjustment block (4) has sliding blocks (12) fixedly connected to both ends. The surface of the sliding block (12) is slidably connected to the interior of the sliding groove (11).
5. A grain grading and screening device according to claim 1, characterized in that: Both sides of the rear end of the filter plate (3) are fixedly connected to a shrink column (13), and a storage spring (15) is fixedly connected to the rear end of the shrink column (13). A push rod (14) is fixedly connected to the front end of the storage spring (15), and a fixing plate (20) is fixedly connected to the bottom of the filter plate (3).
6. A grain grading and screening device according to claim 5, characterized in that: The shrinkage column (13) has guide grooves (16) on both sides inside, and guide blocks (17) are fixedly connected to both ends of the push rod (14). The surface of the guide block (17) is slidably connected to the inside of the guide groove (16).
7. A grain grading and screening device according to claim 1, characterized in that: A return spring (18) is fixedly connected to the side of the adjusting block (4) near the inside of the adjusting groove (19), and the side of the return spring (18) away from the adjusting block (4) is inserted into the inside of the adjusting groove (19).