A sieving device for Chinese medicinal powder

Abstract

This utility model discloses a sieving device for Chinese medicinal powder, relating to the field of Chinese medicinal material processing technology. The device comprises a fixed box, a fixed support, a multi-stage sieving cage, and a power component. The fixed box has square holes on both sides. The fixed support includes a frame and a slider. The slider is mounted on the frame on both sides and slides within the square holes. A first spring is installed within the square holes and correspondingly fixed to the side wall of the square holes and the slider. The power component includes a motor, a half-tooth gear, and a gear rack. A mounting plate is provided on the side of the fixed box, and the motor is fixedly mounted on the mounting plate. A through hole is opened at the end of the fixed box away from the first spring. The gear rack passes through the through hole and is fixedly connected to the frame. The half-tooth gear is fixedly connected to the drive shaft of the motor and meshes with the gear rack. The multi-stage sieving cage is detachably installed inside the frame. Through this simple structural design, the device achieves automatic sieving of medicinal powder, making it simple and practical.

Description

Technical Field

[0001] This utility model relates to the field of traditional Chinese medicine processing technology, and in particular to a traditional Chinese medicine powder sieving device. Background Technology

[0002] Traditional Chinese medicine (TCM) pulverization is a crucial step in the processing and preparation of TCM. It involves breaking TCM raw materials (such as roots, stems, leaves, flowers, fruits, and minerals) into powder of a certain particle size using mechanical or physical methods. The purpose of this process includes improving the dissolution efficiency of active ingredients (increasing surface area to facilitate contact between alkaloids, flavonoids, and other components and the solvent), facilitating preparation (facilitating the mixing and preparation of dosage forms such as powders and pills), making it easier to take and absorb (suitable for people with swallowing difficulties and promoting gastrointestinal digestion), and facilitating storage and transportation (reducing volume and improving stability).

[0003] According to the Chinese Pharmacopoeia, powder particle size is divided into grades such as coarsest powder, coarse powder, medium powder, fine powder, finest powder, and ultrafine powder. Different dosage forms have different particle size requirements. At the same time, during the pulverization process, attention should be paid to avoid damage to the components (such as volatile components needing low-temperature treatment), control of dust pollution, ensuring uniform particle size, and compliance with hygiene standards.

[0004] Existing Chinese medicine powder sieving devices are mostly suitable for large-scale production enterprises with large processing volumes, and the cost is also relatively high. They are not suitable for small-scale enterprises or small-scale family workshops. Utility Model Content

[0005] To address the above shortcomings, this utility model provides a Chinese herbal medicine powder sieving device. By simplifying the structure and reducing the cost of the device, it is more suitable for small enterprises or small workshops.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A traditional Chinese medicine powder sieving device includes a fixed box, a fixed support, a multi-stage sieving cage, and a power component;

[0008] The fixed box is securely installed on the ground. Square holes are provided on both sides of the fixed box. The fixed bracket includes a frame and a slider. The slider is set on both sides of the frame and slides in the square holes. The fixed box also includes a first spring. There are two first springs and they are installed in the square holes respectively. The two ends are fixed to the side wall inside the square holes and the slider respectively.

[0009] The power components include a motor, a half-gear, and a rack. A mounting plate is provided on the side of the fixed box, and the motor is fixedly mounted on the mounting plate. A through hole is opened at the end of the fixed box away from the first spring. The rack passes through the through hole and is fixedly connected to the frame. The half-gear is fixedly connected to the drive shaft of the motor and meshes with the rack.

[0010] The multi-stage screening cage can be detachably installed inside the frame.

[0011] Preferably, the lower part of the fixed box is provided with multiple support legs, and the support legs are provided with flange connection plates. The flange connection plates are fixedly installed on the ground by fasteners.

[0012] Preferably, the fixing box has an opening on the side away from the through hole.

[0013] Preferably, the fixed support also includes a base and fixed components. Multiple fixed components are symmetrically fixed on both sides of the frame. The fixed components include an installation cylinder, a connecting column, a second spring, and a fixing plate. The base is fixedly installed at the bottom of the frame. The fixing plate is fixedly connected to the connecting column. The connecting column is movably inserted into the installation cylinder. The second spring is located inside the installation cylinder and is fixedly connected to both the installation cylinder and the connecting column. The multi-stage screening cage is installed on the base and fixed by the fixed components.

[0014] Preferably, the bottom of the base is also provided with multiple rollers that slide in the same direction as the slider.

[0015] Preferably, the multi-stage screening cage includes a screening ladder, and there are multiple screening ladders. The upper part of the screening ladder is provided with an assembly ring, and the lower part is provided with an assembly groove that matches the assembly ring. The screening ladder also includes a screening plate, which is fixedly installed at the lower part of the screening ladder. Multiple screening ladders are assembled from top to bottom through the assembly ring. The diameter of the screen holes of the screening plate gradually decreases from top to bottom. The screening plate of the bottom screening ladder is replaced with a solid bottom plate.

[0016] Preferably, the upper part of the screening ladder at the top of the multi-stage screening cage is also provided with an expansion funnel, the upper part of the expansion funnel is provided with a cover, and the upper part of the cover is provided with a handle.

[0017] Preferably, the sieve ladder is also equipped with handles on the supports.

[0018] Preferably, the sieve ladder is cylindrical, and the fixing plate is set as an arc plate with the same arc surface as the sieve ladder.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This device is equipped with a fixed box, a fixed support, a multi-stage sieving cage, and a power component; the fixed box has square holes on both sides, the fixed support includes a frame and a slider, the slider is set on the two sides of the frame and slides in the square holes, a first spring is set in the square hole and is correspondingly fixed to the side wall of the square hole and the slider; the power component includes a motor, a half-tooth gear and a rack, a mounting plate is set on the side of the fixed box, the motor is fixedly mounted on the mounting plate, a through hole is opened at the end of the fixed box away from the first spring, the rack passes through the through hole and is fixedly connected to the frame, the half-tooth gear is fixedly connected to the drive shaft of the motor and meshes with the rack; the multi-stage sieving cage is detachably installed inside the frame. Through a simple structural design, the function of automatically screening medicinal powder is realized, the structure is simple and practical and the cost is low. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 In this utility model Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a schematic diagram of the overall structure of the fixed bracket in this utility model;

[0024] Figure 4 This is a cross-sectional view of the fixed bracket in this utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the multi-stage screening cage in this utility model;

[0026] Reference numerals: 1. Fixed box; 11. Support leg; 12. Square hole; 13. First spring; 14. Through hole; 15. Mounting plate; 16. Flange connecting plate; 2. Fixed bracket; 21. Frame; 22. Mounting cylinder; 23. Slider; 24. Base; 25. Roller; 26. Second spring; 27. Connecting column; 28. Fixed plate; 3. Multi-stage screening cage; 31. Cover; 32. Screen ladder; 33. Expansion funnel; 34. Screen plate; 35. Handle; 36. Assembly ring; 37. Lifting handle; 4. Power component; 41. Motor; 42. Half gear; 43. Gear. Detailed Implementation

[0027] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0028] 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] This utility model provides a sieving device for Chinese medicinal herb powders, aiming to simplify the structure and reduce the cost of the device, making it more suitable for small enterprises or small workshops. Figures 1-5 As shown, the device includes a fixed box 1, a fixed support 2, a multi-stage sieving cage 3, and a power unit 4. The fixed box 1 is stably installed on the ground to prevent displacement of the equipment during vibration or sieving operations. Square holes 12 are provided on both sides of the fixed box 1. The fixed support 2 includes a frame 21 and a slider 23, which are located on both sides of the frame 21 and slide within the square holes 12. This structure guides the frame 21 to reciprocate along a specific trajectory during sieving, and, in conjunction with elastic elements, achieves elastic drive and automatic reset of the sieve ladder 32. The fixed box 1 also includes two first springs 13, which are correspondingly installed within the square holes 12. Their ends are fixed to the side walls within the square holes 12 and to the slider 23, respectively. Utilizing the restoring force of the springs, in conjunction with the power unit 4, the sieve ladder 32 is automatically reset to its initial position, achieving a simple reciprocating elastic vibration effect, preventing the sieve ladder 32 from jamming and improving the efficiency and uniformity of powder sieving.

[0031] The power component 4 includes a motor 41, a half-gear 42, and a rack 43. A mounting plate 15 is provided on the side of the fixed box 1, and the motor 41 is fixedly mounted on the mounting plate 15. The motor 41 drives the half-gear 42 to rotate, achieving intermittent drive of the rack 43. The rack 43 then links with the frame 21, thereby driving the sieve ladder 32 to produce a reciprocating sieving motion. A through hole 14 is provided at the end of the fixed box 1 away from the first spring 13. The rack 43 passes through the through hole 14 and is fixedly connected to the frame 21. The half-gear 42 is fixed to the drive shaft of the motor 41 and meshes with the rack 43. This structure achieves discontinuous meshing through periodic contact, thereby driving the frame 21 to move intermittently, simulating the rhythm of manual sieving. The multi-stage sieve cage 3 is detachably installed inside the frame 21, facilitating the free replacement of the sieve ladder 32 components according to the type of medicinal material and powder particle size requirements, improving the adaptability and maintenance convenience of the equipment, and meeting the sieving needs of various specifications of medicinal materials.

[0032] The lower part of the fixed box 1 is equipped with multiple support legs 11, each with a flange connection plate 16. The flange connection plate 16 is fixed to the ground by fasteners. The support leg 11 structure increases the overall height of the device from the ground, facilitating maintenance and cleaning of the bottom components. The flange connection ensures that the equipment is firmly and reliably installed on the ground and will not be displaced due to interference from the screening movement. The fixed box 1 has an opening on the side away from the through hole 14, forming a U-shape, which facilitates the installation or removal of the multi-stage screening plates 34.

[0033] The fixed support 2 also includes a base 24 and fixing components. Multiple fixing components are symmetrically fixedly installed on both sides of the frame 21. The fixing components include a mounting cylinder 22, a connecting column 27, a second spring 26, and a fixing plate 28, which provide lateral buffering and fixing to the multi-stage screening cage 3 through an elastic connection. The base 24 is fixedly installed at the bottom of the frame 21, and its upper part has a groove that matches the multi-stage screening cage 3, providing a stable mounting base for the multi-stage screening cage 3 and ensuring that the screening cage does not shift during movement. The fixing plate 28 is fixedly connected to the connecting column 27, which is movably inserted into the mounting cylinder 22. The second spring 26 is located inside the mounting cylinder 22 and is fixedly connected to both the mounting cylinder 22 and the connecting column 27. The multi-stage sieve cage 3 is installed on the base 24 and fixed by the fixing components. The entire sieve ladder 32 has a stable structure and is quick to disassemble and replace, effectively improving the ease of operation of the sieve process and the flexibility of processing multiple batches of medicinal materials. The bottom of the base 24 is also equipped with rollers 25. There are multiple rollers 25, which slide in the same direction as the slider 23. They provide support and reduce the friction between the slider 23 and the square groove, preventing the frame 21 from getting stuck. The roller 25 structure improves the sliding efficiency, making the drive system require less power, thereby further saving energy and enhancing the stability and continuity of the overall structure operation.

[0034] The multi-stage screening cage 3 includes multiple screen ladders 32. Each screen ladder 32 has an assembly ring 36 at its upper part and a matching assembly groove at its lower part. Each screen ladder 32 also includes a screen plate 34, which is fixedly installed at the lower part of the screen ladder 32. Multiple screen ladders 32 are assembled from top to bottom via the assembly rings 36. The overall structure adopts a modular design, allowing users to flexibly combine them according to different particle size requirements, meeting the multi-particle size screening standards from coarse to extremely fine powder. The screen aperture diameter of the screen plate 34 gradually decreases from top to bottom, effectively achieving layer-by-layer particle screening and precisely controlling powder particle size. The screen plate 34 at the bottom of the screen ladder 32 is replaced with a solid bottom plate to ensure that the smallest particles no longer leak down, while also facilitating the collection of all screened powder.

[0035] The multi-stage screening cage 3 features an expansion funnel 33 at the top of the screening ladder 32, allowing for more powder to be held, increasing the amount of powder fed at one time, and reducing the need for frequent feeding. This design is suitable for small-scale continuous production or small-batch, multi-specification powder processing, improving overall screening efficiency and processing capacity. The expansion funnel 33 is topped with a cover 31, which includes a handle 37. The cover 31 prevents dust from escaping, reducing powder contamination and loss during screening, ensuring a hygienic working environment, and preventing foreign objects from falling into the screening ladder 32 during operation, thus improving safety and cleanliness during manual feeding. The screening ladder 32 also has handles 35 on its supports for easy gripping during assembly and disassembly, enhancing user convenience during replacement or cleaning.

[0036] The screen ladder 32 is cylindrical, and the fixing plate 28 is set as an arc plate with the same arc surface as the screen ladder 32. It can fit tightly against the screen ladder 32 and better fix the multi-stage screening cage 3. The arc structure has a high degree of fit and can firmly lock the screen ladder 32 during vibration, preventing the screen ladder 32 from shaking or shifting, and avoiding screen hole misalignment due to insecure fixing.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A sieving device for Chinese medicinal herb powder, characterized in that: It includes a fixed box (1), a fixed support (2), a multi-stage screening cage (3), and a power component (4); The fixed box (1) is securely installed on the ground. The fixed box (1) has square holes (12) on both sides. The fixed bracket (2) includes a frame (21) and a slider (23). The slider (23) is set on the frame (21) on both sides and slides in the square holes (12). The fixed box (1) also includes a first spring (13). There are two first springs (13) and they are installed in the square holes (12). The two ends are fixed to the side wall inside the square holes (12) and the slider (23). The power component (4) includes a motor (41), a half gear (42) and a rack (43). The side of the fixed box (1) is provided with a mounting plate (15). The motor (41) is fixedly mounted on the mounting plate (15). The fixed box (1) has a through hole (14) at the end away from the first spring (13). The rack (43) passes through the through hole (14) and is fixedly connected to the frame (21). The half gear (42) is fixedly connected to the drive shaft of the motor (41) and meshes with the rack (43). The multi-stage screening cage (3) is detachably installed inside the frame (21).

2. The traditional Chinese medicine powder sieving device according to claim 1, characterized in that: The fixed box (1) is provided with multiple support legs (11) at the bottom. Each support leg (11) is provided with a flange connecting plate (16). The flange connecting plate (16) is fixedly installed on the ground by fasteners.

3. The traditional Chinese medicine powder sieving device according to claim 1, characterized in that: The fixed box (1) has an opening on the side away from the through hole (14).

4. The traditional Chinese medicine powder sieving device according to claim 1, characterized in that: The fixed bracket (2) also includes a base (24) and a fixing component. The fixing component is multiple and symmetrically fixed on both sides of the frame (21). The fixing component includes an installation cylinder (22), a connecting column (27), a second spring (26), and a fixing plate (28). The base (24) is fixedly installed at the bottom of the frame (21). The fixing plate (28) is fixedly connected to the connecting column (27). The connecting column (27) is movably inserted into the installation cylinder (22). The second spring (26) is located inside the installation cylinder (22) and is fixedly connected to the installation cylinder (22) and the connecting column (27) respectively. The multi-stage screening cage (3) is installed on the base (24) and fixed by the fixing component.

5. A traditional Chinese medicine powder sieving device according to claim 4, characterized in that: The base (24) is also provided with a roller (25) at the bottom. There are multiple rollers (25) and they slide in the same direction as the slider (23).

6. The traditional Chinese medicine powder sieving device according to claim 4, characterized in that: The multi-stage screening cage (3) includes a screening ladder (32), and there are multiple screening ladders (32). The upper part of the screening ladder (32) is provided with an assembly ring (36), and the lower part is provided with an assembly groove that matches the assembly ring (36). The screening ladder (32) also includes a screening plate (34). The screening plate (34) is fixedly installed on the lower part of the screening ladder (32). Multiple screening ladders (32) are assembled from top to bottom through the assembly ring (36). The diameter of the screen hole of the screening plate (34) gradually decreases from top to bottom. The screening plate (34) of the bottommost screening ladder (32) is replaced with a solid bottom plate.

7. A traditional Chinese medicine powder sieving device according to claim 6, characterized in that: The uppermost sieve ladder (32) of the multi-stage sieve cage (3) is also provided with an expansion funnel (33), the upper part of the expansion funnel (33) is provided with a cover (31), and the upper part of the cover (31) is provided with a handle (37).

8. A traditional Chinese medicine powder sieving device according to claim 6, characterized in that: The sieve ladder (32) is also provided with handles (35) on the supports.

9. A traditional Chinese medicine powder sieving device according to claim 6, characterized in that: The sieve ladder (32) is cylindrical, and the fixing plate (28) is set as an arc plate with the same arc surface as the sieve ladder (32).

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