Accelerated test box for stability of traditional Chinese medicine preparation

By designing rotating and placement components, the problem of degradation model distortion caused by fixed position deviation in the accelerated stability test chamber for traditional Chinese medicine preparations was solved, achieving uniform sample distribution and environmental uniformity, and improving the reliability and adaptability of test data.

CN223915434UActive Publication Date: 2026-02-17HUBEI TAI PHARM CO LTD
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Patent Information

Application Number
CN202520749848.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2026-02-17
Estimated Expiration
2035-04-21

AI Technical Summary

Technical Problem

In traditional accelerated stability testing chambers for Chinese herbal medicine preparations, environmental deviations at fixed locations can lead to distortions in the degradation model, affecting the reliability of the test results.

Method used

The design employs a rotating and placement component, using a rotating plate and a magnetically held electromagnet to fix the placement tube, achieving periodic rotation and uniform distribution of the sample. Combined with a temperature and humidity control module, it ensures environmental uniformity.

Benefits of technology

It significantly improves the reliability of experimental data, avoids degradation model distortion caused by fixed-position bias, is suitable for long-term accelerated testing, and supports the stability assessment of traditional Chinese medicine under multiple dosage forms and complex conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a traditional Chinese medicine preparation stability acceleration test box, and relates to the technical field of test boxes. The device comprises a box body, a storage plate is placed in the box body, the top of the box body is fixedly connected with a data display, the bottom of the box body is fixedly connected with a temperature and humidity control module, the top of the storage plate is provided with a rotating assembly, and the rotating assembly comprises a rotating box fixedly connected to the top of the storage plate. The rotating rod is movably connected to the interior of the rotating box through a bearing, the transmission rod is movably connected to one side of the rotating box through a bearing, the rotating plate is fixedly connected to the top of the rotating rod, and a containing assembly is arranged at the top of the rotating plate. Periodic rotation of the sample is realized through the rotating component, so that each medicament is uniformly exposed to different positions, local environmental fluctuation is actively counteracted, data reliability is remarkably improved, and the device is particularly suitable for long-term acceleration tests and avoids degradation model distortion caused by fixed deviation accumulation.
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Description

Technical Field

[0001] This utility model belongs to the field of test chamber technology, and in particular relates to an accelerated stability test chamber for traditional Chinese medicine preparations. Background Technology

[0002] An accelerated drug stability test chamber is a specialized device that simulates extreme environmental conditions such as high temperature, high humidity, and low temperature to accelerate the degradation process of drugs and assess their physical, chemical, and biological stability. Its core function is to provide a controlled and uniform test environment, ensuring that the stability data of drugs under accelerated aging conditions are scientifically reliable, thereby predicting their shelf life and storage conditions.

[0003] In traditional accelerated stability test chambers for Chinese medicine preparations, samples are usually placed in a fixed manner on shelves or trays inside the chamber. However, this fixed placement method has significant drawbacks, as it is highly dependent on environmental uniformity. If the temperature and humidity distribution of the equipment is uneven, samples in fixed positions may experience different degradation rates due to local environmental fluctuations. In accelerated or long-term tests that last for months or even years, environmental deviations in fixed positions will continue to affect the same batch of samples, leading to distortion of the degradation model.

[0004] To address these issues, we have provided an accelerated stability testing chamber for traditional Chinese medicine preparations. Utility Model Content

[0005] The purpose of this invention is to provide an accelerated stability test chamber for traditional Chinese medicine preparations. By combining the rotating component and the placement component, it solves the problem in the prior art where environmental deviations at a fixed position continuously affect the same batch of samples, leading to distortion of the degradation model.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to an accelerated stability test chamber for traditional Chinese medicine preparations, comprising a chamber body, an inner shelf for placing a sample, a data display fixedly connected to the top of the chamber body, a temperature and humidity control module fixedly connected to the bottom of the chamber body, a rotating assembly on the top of the sample shelf, the rotating assembly comprising a rotating box fixedly connected to the top of the sample shelf, a rotating rod movably connected to the inside of the rotating box via bearings, a transmission rod movably connected to one side of the rotating box via bearings, and a rotating plate fixedly connected to the top of the rotating rod. A placement assembly is provided on the top of the rotating plate, the placement assembly comprising a magnetically held electromagnet fixedly connected to the top of the rotating plate, a sample tube magnetically attached to the top of the magnetically held electromagnet, and an elastic rubber pad fixedly connected to the inside of the sample tube.

[0008] The present invention is further configured such that a drive motor is fixedly connected to the top of the shelf, a worm gear is fixedly connected to the output end of the drive motor, the end of the worm gear away from the drive motor is movably connected to the shelf through a bearing, a worm wheel meshes with the surface of the worm gear, and the transmission rod is fixedly connected inside the worm wheel.

[0009] The present invention is further configured such that both ends of the transmission rod are fixedly connected to a driving bevel gear, the surface of the driving bevel gear meshes with a driven bevel gear, and the driven bevel gear is fixedly connected to the surface of the rotating rod.

[0010] The present invention is further configured such that a rotating groove is provided on the top of the rotating box, and a support wheel is provided inside the rotating groove, the top of the support wheel being movably connected to the bottom of the rotating plate via a bearing.

[0011] The present invention is further configured such that the storage tube is made of magnetic material, the storage tube has a storage groove inside, and the elastic rubber pad is fixedly connected inside the storage groove.

[0012] The present invention is further configured such that the nine storage tubes are uniformly magnetically attracted to the top of the magnetic holding electromagnet, and the six rotating boxes are fixedly connected to the top of the storage plate.

[0013] The present invention is further configured such that a water-draining groove is provided at the bottom of the storage tube, and a ventilation hole is provided on the surface of the storage plate.

[0014] The present invention has the following beneficial effects.

[0015] 1. This invention achieves periodic rotation of the sample through a rotating component, so that each dose of the drug is evenly exposed to different positions, actively counteracting local environmental fluctuations, significantly improving data reliability, and is especially suitable for long-term accelerated testing, avoiding degradation model distortion caused by the accumulation of fixed biases.

[0016] 2. This utility model utilizes a magnetically held electromagnet combined with a storage tube design. The magnetic force quickly secures the storage tube, which is embedded with an elastic rubber pad to adaptively clamp containers of different sizes, preventing tipping or collisions during rotation. Simultaneously, a drainage groove is provided at the bottom of the storage tube to prevent condensation buildup in high-humidity environments, and ventilation holes in the storage plate promote airflow circulation. The modular design allows for one-click replacement of specialized storage tubes for light protection and sealing, meeting the needs of various dosage forms of traditional Chinese medicine and complex experimental conditions.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a three-dimensional view of the accelerated stability test chamber for traditional Chinese medicine preparations.

[0020] Figure 2 This is a front view of the placement plate in the accelerated stability test chamber for traditional Chinese medicine preparations.

[0021] Figure 3 This is a three-dimensional view of the worm gear and worm wheel in the accelerated stability test chamber for traditional Chinese medicine preparations.

[0022] Figure 4 This is a top-view cross-sectional view of the rotating chamber in the accelerated stability test chamber for traditional Chinese medicine preparations.

[0023] Figure 5 This is a side sectional view of the rotating chamber in the accelerated stability test chamber for traditional Chinese medicine preparations.

[0024] In the attached diagram: 1. Box body; 2. Shelf; 3. Data display; 4. Temperature and humidity control module; 5. Rotating box; 6. Rotating rod; 7. Transmission rod; 8. Rotating plate; 9. Magnetic holding electromagnet; 10. Shelf tube; 11. Elastic rubber pad; 12. Drive motor; 13. Worm gear; 14. Worm wheel; 15. Driving bevel gear; 16. Driven bevel gear; 17. Rotating groove; 18. Support wheel. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1, please refer to Figures 1-5This utility model is an accelerated stability test chamber for traditional Chinese medicine preparations, including a chamber body 1, a shelf 2 placed inside the chamber body 1, a data display 3 fixedly connected to the top of the chamber body 1, a temperature and humidity control module 4 fixedly connected to the bottom of the chamber body 1, a rotating assembly on the top of the shelf 2, the rotating assembly including a rotating box 5 fixedly connected to the top of the shelf 2, a rotating rod 6 movably connected to the inside of the rotating box 5 via bearings, a transmission rod 7 movably connected to one side of the rotating box 5 via bearings, and a rotating plate 8 fixedly connected to the top of the rotating rod 6. Through the setting of the rotating assembly, the dynamic rotation of the sample is realized through a mechanical transmission system, actively homogenizing the temperature and humidity distribution inside the chamber, reducing the influence of fixed position deviation on the test results. A placement assembly is set on the top of the rotating plate 8, the placement assembly including a magnetic holding electromagnet 9 fixedly connected to the top of the rotating plate 8, a placement tube 10 magnetically attracted to the top of the magnetic holding electromagnet 9, and an elastic rubber pad 11 fixedly connected to the inside of the placement tube 10. Through the setting of the placement assembly, the sample is fixed and protected, ensuring the stability of the medicine during rotation, and supporting flexible replacement of containers of different specifications.

[0027] Example 2, please refer to Figures 1-5Based on Embodiment 1, a drive motor 12 is fixedly connected to the top of the shelf 2. A worm gear 13 is fixedly connected to the output end of the drive motor 12. The end of the worm gear 13 away from the drive motor 12 is movably connected to the shelf 2 via a bearing. A worm wheel 14 meshes with the surface of the worm gear 13. A transmission rod 7 is fixedly connected inside the worm wheel 14. The drive motor 12 drives the worm gear 13 to rotate, and the worm gear 13 drives the worm wheel 14 to rotate. Both ends of the transmission rod 7 are fixedly connected to a driving bevel gear 15. A driven bevel gear 16 meshes with the surface of the driving bevel gear 15. The driven bevel gear 16 is fixedly connected to the surface of the rotating rod 6. The driving bevel gear 15 and the driven bevel gear 16 drive the rotating rod 6 to rotate. A rotating groove 17 is opened on the top of the rotating box 5. A support wheel 18 is arranged inside the rotating groove 17. The top of the support wheel 18 is movably connected to the bottom of the rotating plate 8 via a bearing. The 17 and support wheel 18 support the rotating plate 8, allowing it to rotate smoothly. The storage tube 10 is made of magnetic material and has a storage slot inside. An elastic rubber pad 11 is fixedly connected inside the storage slot. The storage slot fixes the medicine inside the storage tube 10, preventing it from tipping over during rotation. Nine storage tubes 10 are evenly magnetically attached to the top of the magnetic holding electromagnet 9. Six rotating boxes 5 are fixedly connected to the top of the storage plate 2. The magnetic holding electromagnet 9 fixes the storage tubes 10 magnetically, making it easy to replace storage tubes 10 of different shapes and specifications as needed. The bottom of the storage tube 10 has a drainage slot, and the surface of the storage plate 2 has ventilation holes. The drainage slot prevents water droplets from accumulating in the storage tube 10 in high humidity environments, while the ventilation holes allow airflow inside the box 1, ensuring a balanced temperature.

[0028] The working principle of this utility model is as follows: Place the storage tube 10 to be used on top of the magnetic holding electromagnet 9. After the magnetic holding electromagnet 9 is energized, it magnetically attracts and fixes the storage tube 10. Place the reagent tube to be tested in the storage slot of the storage tube 10. The elastic rubber pad 11 in the storage slot contacts the reagent tube and fixes it. Then, place the storage plate 2 into the box 1. After closing the box door, set the temperature and humidity in the temperature and humidity control module 4 and close the box door to carry out the reagent stability experiment.

[0029] The drive motor 12 is turned on periodically. The drive motor 12 drives the worm gear 13 to rotate, the worm gear 13 drives the worm wheel 14 to rotate, the worm wheel 14 drives the transmission rod 7 to rotate, the transmission rod 7 drives the driving bevel gear 15 to rotate, the driving bevel gear 15 drives the driven bevel gear 16 to rotate, the driven bevel gear 16 drives the rotating rod 6 to rotate, the rotating rod 6 drives the rotating plate 8 to rotate, and the rotating plate 8 drives the top storage tube 10 to rotate, thereby adjusting the position of the Chinese medicine in the storage tube 10 and avoiding the medicine from being in the same position for a long time, which would cause environmental deviations and affect the test results.

[0030] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stability acceleration test chamber for traditional Chinese medicine preparations, comprising a chamber body (1), characterized in that: The cabinet (1) has a shelf (2) inside, a data display (3) is fixedly connected to the top of the cabinet (1), and a temperature and humidity control module (4) is fixedly connected to the bottom of the cabinet (1). The top of the shelf (2) is provided with a rotating assembly, which includes a rotating box (5) fixedly connected to the top of the shelf (2), a rotating rod (6) movably connected to the inside of the rotating box (5) via a bearing, a transmission rod (7) movably connected to one side of the rotating box (5) via a bearing, and a rotating plate (8) fixedly connected to the top of the rotating rod (6). The top of the rotating plate (8) is provided with a placement assembly, which includes a magnetic holding electromagnet (9) fixedly connected to the top of the rotating plate (8), a storage tube (10) magnetically attracted to the top of the magnetic holding electromagnet (9), and an elastic rubber pad (11) fixedly connected inside the storage tube (10).

2. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: A drive motor (12) is fixedly connected to the top of the shelf (2). A worm (13) is fixedly connected to the output end of the drive motor (12). The end of the worm (13) away from the drive motor (12) is movably connected to the shelf (2) through a bearing. A worm wheel (14) meshes with the surface of the worm (13). The transmission rod (7) is fixedly connected inside the worm wheel (14).

3. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: Both ends of the transmission rod (7) are fixedly connected to a drive bevel gear (15), and a driven bevel gear (16) meshes with the surface of the drive bevel gear (15). The driven bevel gear (16) is fixedly connected to the surface of the rotating rod (6).

4. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: The top of the rotating box (5) is provided with a rotating groove (17), and a support wheel (18) is provided inside the rotating groove (17). The top of the support wheel (18) is movably connected to the bottom of the rotating plate (8) through a bearing.

5. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: The storage tube (10) is made of magnetic material, and a storage slot is provided inside the storage tube (10). The elastic rubber pad (11) is fixedly connected inside the storage slot.

6. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: The nine storage tubes (10) are evenly magnetically attached to the top of the magnetic holding electromagnet (9), and the six rotating boxes (5) are fixedly connected to the top of the storage plate (2).

7. The accelerated stability test chamber for traditional Chinese medicine preparations according to claim 1, characterized in that: The bottom of the storage tube (10) is provided with a water leakage groove, and the surface of the storage plate (2) is provided with a ventilation hole.