Rice fine sorting device capable of removing tiny impurities
By designing a combination of filter screen, bevel gear drive, and impact roller, the problem of tiny impurities in rice processing was solved, achieving efficient sorting and anti-clogging, and improving the quality of rice.
Patent Information
- Application Number
- CN202423007721.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing technologies, tiny impurities are easily introduced into the rice during processing, affecting the quality of the rice.
Design a sorting device that includes a filter screen, a bevel gear transmission system, and a striking roller. The filter screen is rotated by a motor and the material is spread by a spreading rod. Combined with the cooperation of the protrusions and the striking roller, the rice can be sorted quickly and the filter screen can be prevented from clogging.
It effectively removes tiny impurities from rice, improves rice sorting efficiency, avoids filter clogging, and ensures rice quality.
Smart Images

Figure CN223543417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice processing, and in particular to a fine rice sorting device that can remove minute impurities. Background Technology
[0002] Rice, also known as paddy rice, is a food made from paddy rice through processes such as cleaning, hulling, milling, and finishing. Rice is a staple food for people in most parts of China.
[0003] This application improves upon the existing technology, in which tiny impurities are easily mixed into the rice during the rice processing process, and need to be removed to avoid the tiny impurities affecting the quality of the rice. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fine rice sorting device that can remove minute impurities.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fine rice sorting device capable of removing minute impurities includes a sorting box, a filter screen rotatably connected to the inner wall of the sorting box, a vertical rod fixedly connected to the top of the filter screen, a rotating sleeve rotatably connected to the outer wall of the vertical rod, and the rotating sleeve rotatably connected to the sorting box, symmetrically distributed spreading rods fixedly connected to the outer wall of the rotating sleeve, a fixing rod fixedly connected to the inner wall of the sorting box below the filter screen, symmetrically distributed mounting seats fixedly connected to the top of the fixing rod, a striking roller on the top of the mounting seat, movable blocks rotatably connected to both ends of the striking roller, and the movable blocks slidably connected to the mounting seat, and multiple equidistantly distributed protrusions fixedly connected to the bottom of the filter screen along its circumference.
[0007] As a further embodiment of this utility model: the inner wall of the mounting base is provided with symmetrically distributed sliding grooves, and the inner wall of the sliding groove is slidably connected to the movable block. The bottom of the movable block is fixedly connected with a spring, and the other end of the spring is fixedly connected to the inner wall of the sliding groove.
[0008] As a further embodiment of this utility model: a third bevel gear is fixedly sleeved on the outer wall of one end of the rotating sleeve extending from the top of the sorting box; a fixing ring is fixedly sleeved on the outer wall of one end of the vertical rod extending from the top of the rotating sleeve; a first bevel gear is fixedly connected to the outer wall of the fixing ring; a second bevel gear meshes between the first bevel gear and the third bevel gear; a boss is fixedly connected to the top outer wall of the sorting box; a motor is fixedly connected to the top of the boss; and the output shaft of the motor is fixedly connected to the second bevel gear.
[0009] As a further embodiment of this utility model: a rotating ring is rotatably connected to the top inner wall of the sorting box, and the rotating ring is fixedly connected to the material spreading rod; a discharge pipe is fixedly connected to one side of the sorting box.
[0010] As a further improvement of this utility model: the inner wall of the sorting box is provided with an annular groove, and a guide ring is rotatably connected to the inner wall of the annular groove, and the guide ring is fixedly connected to the filter screen.
[0011] This utility model has the following beneficial effects:
[0012] In this invention, rice is added to the sorting box and falls to the top of the filter screen. The motor is started, and the output shaft of the motor rotates, driving the second bevel gear to rotate, which in turn drives the first and third bevel gears to rotate in opposite directions. The rotation of the first bevel gear drives the filter screen to rotate, and the rotation of the third bevel gear drives the rotating sleeve to rotate, which in turn drives the spreading rod to rotate. The spreading rod spreads the rice on the top of the filter screen, allowing the rice to move on the filter screen and accelerating the sorting and screening of the rice. At the same time as the filter screen rotates, the protrusion rotates. When the protrusion contacts the striking roller, the protrusion causes the striking roller to move, which in turn causes the movable block to move, deforming the spring. When the protrusion is no longer in contact with the striking roller, the spring returns to its original position, causing the striking roller to strike the filter screen, preventing the filter screen from clogging. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a fine rice sorting device that can remove minute impurities according to the present invention.
[0014] Figure 2 In this utility model Figure 1 A magnified structural diagram at point A;
[0015] Figure 3 In this utility model Figure 2 A magnified structural diagram at point B.
[0016] Legend:
[0017] 1. Sorting box; 2. Filter screen; 3. Vertical rod; 4. Rotating sleeve; 5. Fixing ring; 6. First bevel gear; 7. Second bevel gear; 8. Third bevel gear; 9. Motor; 10. Boss; 11. Rotating ring; 12. Material spreading rod; 13. Fixing rod; 14. Annular groove; 15. Guide ring; 16. Mounting base; 17. Protrusion; 18. Striking roller; 19. Sliding groove; 20. Movable block; 21. Spring; 22. Discharge pipe. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0020] Reference Figure 1-3 This utility model provides a fine rice sorting device that can remove tiny impurities, including a sorting box 1. A filter screen 2 is rotatably connected to the inner wall of the sorting box 1. A vertical rod 3 is fixedly connected to the top of the filter screen 2. A rotating sleeve 4 is rotatably connected to the outer wall of the vertical rod 3 and is rotatably connected to the sorting box 1. A symmetrically distributed spreading rod 12 is fixedly connected to the outer wall of the rotating sleeve 4. A fixing rod 13 is fixedly connected to the inner wall of the sorting box 1 below the filter screen 2. A symmetrically distributed mounting seat 16 is fixedly connected to the top of the fixing rod 13. A striking roller 18 is provided on the top of the mounting seat 16. Movable blocks 20 are rotatably connected to both ends of the striking roller 18 and are slidably connected to the mounting seat 16. A plurality of equidistantly distributed protrusions 17 are fixedly connected to the bottom of the filter screen 2 along its circumference.
[0021] The inner wall of the mounting base 16 is provided with symmetrically distributed sliding grooves 19, and the inner wall of the sliding grooves 19 is slidably connected to the movable block 20. The bottom of the movable block 20 is fixedly connected to a spring 21, and the other end of the spring 21 is fixedly connected to the inner wall of the sliding groove 19.
[0022] A third bevel gear 8 is fixedly sleeved on the outer wall of one end of the rotating sleeve 4 that extends out of the top of the sorting box 1. A fixing ring 5 is fixedly sleeved on the outer wall of one end of the vertical rod 3 that extends out of the top of the rotating sleeve 4. A first bevel gear 6 is fixedly connected to the outer wall of the fixing ring 5. A second bevel gear 7 meshes between the first bevel gear 6 and the third bevel gear 8. A boss 10 is fixedly connected to the top outer wall of the sorting box 1. A motor 9 is fixedly connected to the top of the boss 10, and the output shaft of the motor 9 is fixedly connected to the second bevel gear 7.
[0023] A rotating ring 11 is rotatably connected to the top inner wall of the sorting box 1, and the rotating ring 11 is fixedly connected to the material spreading rod 12. A discharge pipe 22 is fixedly connected to one side of the sorting box 1.
[0024] The inner wall of the sorting box 1 is provided with an annular groove 14, and a guide ring 15 is rotatably connected to the inner wall of the annular groove 14, and the guide ring 15 is fixedly connected to the filter screen 2.
[0025] Working principle:
[0026] In this application, during use, rice is added to the sorting box 1, and the rice falls to the top of the filter screen 2. The motor 9 is started, and the output shaft of the motor 9 rotates, driving the second bevel gear 7 to rotate, which in turn drives the first bevel gear 6 and the third bevel gear 8 to rotate. The first bevel gear 6 and the third bevel gear 8 rotate in opposite directions. The rotation of the first bevel gear 6 drives the filter screen 2 to rotate, and the rotation of the third bevel gear 8 drives the rotating sleeve 4 to rotate, which in turn drives the spreading rod 12 to rotate. The spreading rod 12 spreads the rice on the top of the filter screen 2, allowing the rice to move on the filter screen 2 and accelerating the sorting and screening of the rice. At the same time as the filter screen 2 rotates, the protrusion 17 rotates. When the protrusion 17 contacts the striking roller 18, the protrusion 17 causes the striking roller 18 to move, which in turn drives the movable block 20 to move. The spring 21 deforms. When the protrusion 17 is not in contact with the striking roller 18, the spring 21 returns to its original position, causing the striking roller 18 to strike the filter screen 2, preventing the filter screen 2 from becoming clogged.
[0027] 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 fine rice sorting device capable of removing minute impurities, comprising a sorting box (1), characterized in that: The inner wall of the sorting box (1) is rotatably connected to a filter screen (2), the top of the filter screen (2) is fixedly connected to a vertical rod (3), the outer wall of the vertical rod (3) is rotatably connected to a rotating sleeve (4), and the rotating sleeve (4) is rotatably connected to the sorting box (1). The outer wall of the rotating sleeve (4) is fixedly connected to symmetrically distributed spreading rods (12). The bottom of the filter screen (2) is provided with a fixing rod (13) fixedly connected to the inner wall of the sorting box (1). The top of the fixing rod (13) is fixedly connected to symmetrically distributed mounting seats (16). The top of the mounting seat (16) is provided with a striking roller (18). Both ends of the striking roller (18) are rotatably connected to movable blocks (20), and the movable blocks (20) are slidably connected to the mounting seat (16). The bottom of the filter screen (2) is fixedly connected to multiple equidistantly distributed protrusions (17) along its circumference.
2. The rice fine sorting device capable of removing minute impurities according to claim 1, characterized in that: The inner wall of the mounting base (16) is provided with symmetrically distributed sliding grooves (19), and the inner wall of the sliding groove (19) is slidably connected to the movable block (20). The bottom of the movable block (20) is fixedly connected with a spring (21), and the other end of the spring (21) is fixedly connected to the inner wall of the sliding groove (19).
3. The rice fine sorting device capable of removing minute impurities according to claim 1, characterized in that: The outer wall of the rotating sleeve (4) extending out of the top of the sorting box (1) is fixedly fitted with a third bevel gear (8). The outer wall of the vertical rod (3) extending out of the top of the rotating sleeve (4) is fixedly fitted with a fixing ring (5). The outer wall of the fixing ring (5) is fixedly connected with a first bevel gear (6). A second bevel gear (7) meshes between the first bevel gear (6) and the third bevel gear (8). The top outer wall of the sorting box (1) is fixedly connected with a boss (10). The top of the boss (10) is fixedly connected with a motor (9), and the output shaft of the motor (9) is fixedly connected to the second bevel gear (7).
4. The rice fine sorting device capable of removing minute impurities according to claim 1, characterized in that: The top inner wall of the sorting box (1) is rotatably connected to a rotating ring (11), and the rotating ring (11) is fixedly connected to the spreading rod (12). A discharge pipe (22) is fixedly connected to one side of the sorting box (1).
5. The rice fine sorting device capable of removing minute impurities according to claim 1, characterized in that: The inner wall of the sorting box (1) is provided with an annular groove (14), and the inner wall of the annular groove (14) is rotatably connected with a guide ring (15), and the guide ring (15) is fixedly connected to the filter screen (2).