Multi-stage screening device for selfheal processing

By designing a multi-stage screening device for processing Prunella vulgaris, utilizing a motor-driven sector gear system and an arc-shaped screening grid, the problem of inconvenient screening of Prunella vulgaris was solved, achieving efficient grading and screening as well as quality assurance.

CN224127902UActive Publication Date: 2026-04-17HUBEI MINGGU TRADITIONAL CHINESE MEDICINE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI MINGGU TRADITIONAL CHINESE MEDICINE TECHNOLOGY CO LTD
Filing Date
2025-04-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the existing technology, the screening process of Prunella vulgaris is not convenient, quick, or efficient, which affects the processing efficiency.

Method used

A multi-stage screening device for processing Prunella vulgaris was designed, comprising a screening box, a screening frame, a motor-driven sector gear and tooth system. The motor drives the sector gear to rotate the tooth system, thereby realizing the shaking and pushing-pull transmission of the screening frame. Combined with the arc-shaped screening grid plate, cover plate, partition plate, flexible metal plate and other structures, multi-stage screening is achieved.

Benefits of technology

This method enables efficient grading and screening of Prunella vulgaris, improving screening quality and efficiency, preventing small particles from rolling out, and ensuring collection quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of selfheal processing, and discloses a multistage screening device for selfheal processing, which comprises a screening box, a screening frame is slidably arranged on the inner wall of the screening box, and a plurality of baffles are fixedly connected to the inner wall of the screening frame. The output shaft of the motor rotates to drive the sector gear to rotate to stir the teeth and the moving frame to move, the connecting plate can be subjected to push-pull transmission treatment, the screening frame shakes along the inner wall of the screening box, small spica prunellae can fall to the bottom of the screening box through the first screening grating plate, and the small spica prunellae can be separated from the screening box through follow-up shaking. And large-particle selfheal can roll to the upper surfaces of the second screening grating plate and the third screening grating plate according to the particle size, classified screening treatment is carried out, and the classification effect can be guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of processing technology of Prunella vulgaris, and in particular to a multi-stage screening device for processing Prunella vulgaris. Background Technology

[0002] Prunella vulgaris is a common Chinese medicinal herb. Its processing needs to be combined with medicinal requirements. Through steps such as screening, washing, and drying, impurities are removed while retaining the effective ingredients. Prunella vulgaris is usually harvested in summer when the spikes are brownish-red. At this time, the content of effective ingredients (such as prunella glycosides and ursolic acid) is relatively high. Harvesting too early will result in immature spikes, while harvesting too late will cause them to fall off and scatter.

[0003] In the existing technology, during the processing of Prunella vulgaris, it is necessary to screen the Prunella vulgaris in a timely manner to ensure that the Prunella vulgaris of different sizes are classified and processed accordingly, so as to ensure the processing quality. However, if it is not convenient to screen the Prunella vulgaris quickly and efficiently, it will affect the processing screening efficiency. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the existing technology does not allow for quick and efficient stable screening of Prunella vulgaris, which affects the processing screening efficiency. Therefore, a multi-stage screening device for Prunella vulgaris processing is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-stage screening device for processing Prunella vulgaris includes a screening box. A screening frame is slidably provided on the inner wall of the screening box. Multiple baffles are fixedly connected to the inner wall of the screening frame. A first screening grid plate, a second screening grid plate, and a third screening grid plate are fixedly connected inside the screening frame. The multiple baffles are respectively fixedly connected at the gaps between the first screening grid plate and the second screening grid plate and the second screening grid plate and the third screening grid plate. A fixing frame is fixedly connected to the side wall of the screening box. A motor is fixedly connected to the side wall of the fixing frame. A connecting plate is fixedly connected to the side wall of the screening frame. An opening is provided on the side wall of the screening box. The connecting plate is slidably disposed on the inner wall of the opening.

[0007] Preferably, the upper surfaces of the first screening grid plate, the second screening grid plate, and the third screening grid plate are respectively set as arc surfaces.

[0008] Preferably, the end of the connecting plate away from the screening frame extends to the outside of the screening box and is fixedly connected to a movable frame. The inner wall of the movable frame is fixedly connected to multiple teeth. The output shaft of the motor extends into the interior of the movable frame and is fixedly connected to a sector gear. The sector gear meshes with the multiple teeth.

[0009] Preferably, a cover plate is fixedly connected to the inner wall of the screening box, and the cover plate is positioned above the screening frame.

[0010] Preferably, the inner wall of the screening box is fixedly connected with multiple partitions, the top of the partitions is fixedly connected with a flexible metal plate, and the end of the flexible metal plate facing away from the partitions is fixedly connected to the bottom of the screening frame.

[0011] Preferably, a guide bar is fixedly connected to the side wall of the screening frame, and a sliding groove is provided on the inner wall of the screening box, with the guide bar slidably disposed on the inner wall of the sliding groove.

[0012] Compared with the prior art, this utility model provides a multi-stage screening device for processing Prunella vulgaris, which has the following beneficial effects:

[0013] 1. This multi-stage screening device for processing Prunella vulgaris uses the output shaft of a motor to drive a sector gear, which in turn moves the teeth and the moving frame. This allows for push-pull transmission of the connecting plate, causing the screening frame to sway along the inner wall of the screening box. Smaller Prunella vulgaris particles fall through the first screening grid to the bottom of the screening box. After further shaking, larger particles will roll onto the upper surfaces of the second and third screening grids according to their size, thus achieving graded screening and ensuring effective grading.

[0014] 2. The multi-stage screening device for processing Prunella vulgaris ensures screening quality and prevents small particles of Prunella vulgaris from rolling out of the first screening grid by setting the upper surfaces of the first, second, and third screening grids to be curved.

[0015] 3. This multi-stage screening device for processing Prunella vulgaris can be protected by a cover plate to prevent the Prunella vulgaris from being thrown to the outside of the screening box during screening. The partition can make the screened Prunella vulgaris more concentrated and prevent it from affecting the collection quality. The flexible metal plate can move with the screening frame to further improve the collection quality and prevent the screened Prunella vulgaris from mixing. The guide strip can improve the stability of the screening frame movement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-stage screening device for processing Prunella vulgaris proposed in this utility model;

[0017] Figure 2 This is a partial structural cross-sectional view of a multi-stage screening device for processing Prunella vulgaris proposed in this utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of the middle screening frame.

[0019] In the diagram: 1. Screening box, 2. Screening frame, 3. Baffle, 4. First screening grid plate, 5. Second screening grid plate, 6. Third screening grid plate, 7. Fixing frame, 8. Motor, 9. Connecting plate, 10. Moving frame, 11. Tooth, 12. Sector gear, 13. Cover plate, 14. Partition plate, 15. Flexible metal plate, 16. Guide strip. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-3 A multi-stage screening device for processing Prunella vulgaris includes a screening box 1, a screening frame 2 slidably disposed on the inner wall of the screening box 1, a plurality of baffles 3 fixedly connected to the inner wall of the screening frame 2, a first screening grid plate 4, a second screening grid plate 5 and a third screening grid plate 6 fixedly connected inside the screening frame 2, the plurality of baffles 3 being respectively fixedly connected to the gaps between the first screening grid plate 4 and the second screening grid plate 5, and between the second screening grid plate 5 and the third screening grid plate 6, a fixing frame 7 fixedly connected to the side wall of the screening box 1, a motor 8 fixedly connected to the side wall of the fixing frame 7, a connecting plate 9 fixedly connected to the side wall of the screening frame 2, an opening being provided on the side wall of the screening box 1, and the connecting plate 9 being slidably disposed on the inner wall of the opening.

[0022] The upper surfaces of the first screening grid plate 4, the second screening grid plate 5, and the third screening grid plate 6 are respectively set as arc surfaces. The end of the connecting plate 9 away from the screening frame 2 extends to the outside of the screening box 1 and is fixedly connected to the moving frame 10. Multiple teeth 11 are fixedly connected to the inner wall of the moving frame 10. The output shaft of the motor 8 extends into the interior of the moving frame 10 and is fixedly connected to the sector gear 12. The sector gear 12 and the multiple teeth 11 are meshed with each other.

[0023] In use, the Prunella vulgaris is placed on the upper surface of the first screening grid plate 4. The motor 8 is started, and the output shaft of the motor 8 rotates, which drives the sector gear 12 to rotate, moving the teeth 11 and the moving frame 10. This allows for push-pull transmission of the connecting plate 9, causing the screening frame 2 to shake along the inner wall of the screening box 1. Smaller Prunella vulgaris particles can fall through the first screening grid plate 4 to the bottom of the screening box 1. After shaking, larger Prunella vulgaris particles will roll onto the upper surfaces of the second screening grid plate 5 and the third screening grid plate 6 according to their particle size for grading and screening. This ensures the grading effect. The upper surfaces of the first screening grid plate 4, the second screening grid plate 5, and the third screening grid plate 6 are respectively set as curved surfaces to ensure screening quality and prevent small Prunella vulgaris particles from rolling out of the first screening grid plate 4.

[0024] To ensure the sieved Prunella vulgaris is placed more concentratedly, such as... Figure 1-3 As shown, a cover plate 13 is fixedly connected to the inner wall of the screening box 1. The cover plate 13 is located above the screening frame 2. Multiple partitions 14 are fixedly connected to the inner wall of the screening box 1. A flexible metal plate 15 is fixedly connected to the top of the partition 14. The end of the flexible metal plate 15 facing away from the partition 14 is fixedly connected to the bottom of the screening frame 2. A guide strip 16 is fixedly connected to the side wall of the screening frame 2. A sliding groove is opened in the inner wall of the screening box 1. The guide strip 16 is slidably arranged in the inner wall of the sliding groove.

[0025] The cover plate 13 can provide certain protection to prevent the Prunella vulgaris from being thrown to the outside of the screening box 1 during screening. The partition plate 14 can make the screened Prunella vulgaris more concentrated and prevent it from affecting the collection quality. The flexible metal plate 15 can move with the screening frame 2, which can further improve the collection quality and prevent the screened Prunella vulgaris from mixing. The guide strip 16 can improve the stability of the movement of the screening frame 2.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage screening device for processing of Prunella vulgaris, comprising a screening box (1), characterized in that: The screening box (1) has a screening frame (2) slidably mounted on its inner wall. Multiple baffles (3) are fixedly connected to the inner wall of the screening frame (2). A first screening grid plate (4), a second screening grid plate (5), and a third screening grid plate (6) are fixedly connected inside the screening frame (2). The multiple baffles (3) are respectively fixedly connected to the gaps between the first screening grid plate (4) and the second screening grid plate (5), and between the second screening grid plate (5) and the third screening grid plate (6). A fixing frame (7) is fixedly connected to the side wall of the screening box (1). A motor (8) is fixedly connected to the side wall of the fixing frame (7). A connecting plate (9) is fixedly connected to the side wall of the screening frame (2). An opening is provided on the side wall of the screening box (1). The connecting plate (9) is slidably mounted on the inner wall of the opening.

2. The multi-stage screening device for processing of Prunella vulgaris according to claim 1, characterized in that: The upper surfaces of the first screening grid plate (4), the second screening grid plate (5) and the third screening grid plate (6) are respectively set as arc surfaces.

3. The multi-stage screening device for processing of Prunella vulgaris according to claim 1, characterized in that: The end of the connecting plate (9) away from the screening frame (2) extends to the outside of the screening box (1) and is fixedly connected to the movable frame (10). The inner wall of the movable frame (10) is fixedly connected to a plurality of teeth (11). The output shaft of the motor (8) extends into the interior of the movable frame (10) and is fixedly connected to a sector gear (12). The sector gear (12) and the plurality of teeth (11) are meshed with each other.

4. The multi-stage screening device for processing of Prunella vulgaris according to claim 1, characterized in that: The inner wall of the screening box (1) is fixedly connected to a cover plate (13), which is located above the screening frame (2).

5. The multi-stage screening device for processing of Prunella vulgaris according to claim 1, characterized in that: The inner wall of the screening box (1) is fixedly connected with multiple partitions (14), and the top of the partitions (14) is fixedly connected with a flexible metal plate (15). The end of the flexible metal plate (15) facing away from the partitions (14) is fixedly connected to the bottom of the screening frame (2).

6. The multi-stage screening device for processing of Prunella vulgaris according to claim 1, characterized in that: A guide bar (16) is fixedly connected to the side wall of the screening frame (2), and a sliding groove is provided on the inner wall of the screening box (1). The guide bar (16) is slidably disposed on the inner wall of the sliding groove.