Medicine stability test box
By introducing a rotatable placement component into the drug stability test chamber, the problem of uneven heat transfer was solved, achieving uniform heat distribution of the drug during the heating process and improving the accuracy and reliability of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YIHAI PHARMACEUTICAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-02
AI Technical Summary
The existing drug stability test chambers have a closed bottom tray structure, which leads to uneven heat transfer and affects the accuracy and reliability of the test results.
A drug stability test chamber with a rotatable housing component was designed. The housing component can be rotated by a motor-driven rotating rod and a bevel gear system to ensure that the drug receives uniform heat distribution during the heating process.
This method achieves uniform heat distribution of the drug during the heating process, improving the accuracy and reliability of the test results.
Smart Images

Figure CN224308428U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pharmaceutical testing technology, specifically a pharmaceutical stability test chamber. Background Technology
[0002] A drug stability test chamber is a device that simulates natural environmental conditions to test the stability of drugs under different temperature and humidity conditions. Through an accurate temperature and humidity control system and data recording device, it controls environmental parameters (such as temperature, humidity, light, etc.) to simulate the long-term storage and use of drugs under different environmental conditions. It is widely used in pharmaceutical companies, drug testing institutions, research institutions and other related fields.
[0003] Drug stability test chambers are mainly used for stability testing in the early stages of new drug development and before formal production, to assess changes in the physicochemical properties of drugs under various conditions. They are also used in storage facilities to conduct quality assessments of drugs stored for a long period of time, ensuring the stability and safety of drugs within their shelf life.
[0004] In drug stability testing, drugs are usually placed in an orderly manner on a tray for testing. However, the existing trays have a closed bottom structure, which hinders the uniform transfer of heat to the outer surface of the drug during the test. At the same time, since the tray cannot rotate in the test chamber, it is difficult for the drug to obtain a uniform heat distribution during the heating process, which affects the accuracy and reliability of the test results. To address the above problems, this application proposes an improved drug stability test chamber. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides the following technical solution: a drug stability test chamber, comprising a chamber body, a test cavity opened on the front of the chamber body, a vertical first rotating rod rotatably mounted inside the test cavity, four sets of placement components evenly arranged on the first rotating rod, a first bevel gear fixedly mounted at the lower position of the first rotating rod, a motor fixedly mounted on the right side of the chamber body, a second rotating rod extending into the test cavity fixedly connected to the output end of the motor, a second bevel gear fixedly mounted at the end of the second rotating rod away from the motor, the side wall of the second bevel gear meshing with the first bevel gear, and a door hinged to the front of the chamber body that can be closed at the opening of the test cavity.
[0006] Preferably, the storage assembly includes a storage ring, a collar, multiple connecting plates, and a storage frame. The collar is fixedly sleeved on the first rotating rod. The storage ring is located outside the collar, and the center of the collar and the center of the storage ring are located on the same vertical axis. The multiple connecting plates are evenly and fixedly connected between the outer wall of the collar and the inner wall of the storage ring, and the storage frame is placed between the storage rings.
[0007] Preferably, the bottom of the storage frame is set as a storage mesh frame, and the outer wall of the storage frame is fitted with the inner wall of the storage ring. The bottom of the storage frame has a groove extending to its center, and the groove is fitted outside the collar.
[0008] Preferably, a handle is fixedly installed on the outer end of the storage frame away from the slot, the side wall of the storage ring is provided with an opening, and the spacing between the openings on the side wall of the storage ring is less than its diameter, and the handle on the side wall of the storage frame is located at the opening of the side wall of the storage ring.
[0009] Preferably, a first bearing seat is fixedly installed at the center of the top and bottom of the inner wall of the test chamber, and the two ends of the first rotating rod are respectively fixedly inserted between the two first bearing seats. A second bearing seat is fixedly installed at the bottom of the inner wall of the test chamber and on the right side of the first rotating rod. The end of the second rotating rod away from the motor passes through and is fixedly inserted between the second bearing seats.
[0010] Preferably, a control unit is fixedly installed on the right side of the enclosure, and the front of the control unit is equipped with a numerical display screen and control buttons.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] The removable storage frame in the storage assembly facilitates the placement or removal of the tray containing the test drug from the test chamber. The bottom of the storage frame is designed as a storage mesh, which allows for the even transfer of heat from inside the test chamber to the surface of the drug. Furthermore, the motor drives the second rotating rod and the second bevel gear to rotate, which in turn drives the first bevel gear meshing with it to rotate. This, in turn, causes the first rotating rod and multiple storage assemblies to rotate, ensuring that the drug receives uniform heat during the heating process, thereby improving the accuracy and reliability of the test results. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the front structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure connecting the storage ring and the first rotating rod of this utility model;
[0017] Figure 4 This is a schematic diagram of the structure of the storage component of this utility model;
[0018] In the diagram: 1. Box body; 2. Box door; 4. Control unit; 5. First rotating rod; 6. First bearing seat; 7. Storage assembly; 8. First bevel gear; 9. Motor; 10. Second rotating rod; 11. Second bevel gear; 12. Second bearing seat; 71. Storage ring; 72. Collar; 73. Connecting plate; 74. Storage frame; 75. Slot; 76. Handle. Detailed Implementation
[0019] 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. 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 protection scope of the present utility model.
[0020] Depend on Figure 1-4 The present invention includes a housing 1, with a test chamber on the front of the housing 1. A vertical first rotating rod 5 is rotatably mounted inside the test chamber. Four sets of placement components 7 are evenly arranged on the first rotating rod 5. A first bevel gear 8 is fixedly mounted at the lower position of the first rotating rod 5. A motor 9 is fixedly mounted on the right side of the housing 1. A second rotating rod 10 extending into the test chamber is fixedly connected to the output end of the motor 9. A second bevel gear 11 is fixedly mounted at the end of the second rotating rod 10 away from the motor 9. The side wall of the second bevel gear 11 meshes with the first bevel gear 8. A door 2 that can be closed at the opening of the test chamber is hinged to the front of the housing 1. The placement components 7 facilitate the placement and removal of the experimental drugs. Furthermore, the placement components 7 can rotate within the test chamber inside the housing 1, thereby enabling the drugs to obtain uniform heat distribution during heating, thus improving the accuracy and reliability of the test results.
[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the storage assembly 7 includes a storage ring 71, a collar 72, multiple connecting plates 73, and a storage frame 74. The collar 72 is fixedly sleeved on the first rotating rod 5. The storage ring 71 is located outside the collar 72, and the center of the collar 72 and the center of the storage ring 71 are located on the same vertical axis. The multiple connecting plates 73 are evenly and fixedly connected between the outer wall of the collar 72 and the inner wall of the storage ring 71. The storage frame 74 is placed between the storage rings 71. By opening a slot 75 on the side wall of the storage frame 74, it is convenient to sleeve the storage frame 74 on the first rotating rod 5 and let the slot 75 fit into the collar 72.
[0022] like Figure 2 , Figure 3 and Figure 4As shown, the bottom of the storage frame 74 is set as a storage mesh frame, and the outer wall of the storage frame 74 is attached to the inner wall of the storage ring 71. The bottom of the storage frame 74 has a slot 75 extending to its center, and the slot 75 is fitted outside the collar 72. The storage mesh frame at the bottom of the storage frame 74 can evenly transfer the heat in the test chamber to the outer surface of the medicine during the test, and the storage frame 74 cannot move freely between the storage rings 71.
[0023] like Figure 2 , Figure 3 and Figure 4 As shown, a handle 76 is fixedly installed on the outer end of the storage frame 74 away from the slot 75. The side wall of the storage ring 71 has an opening, and the spacing between the openings on the side wall of the storage ring 71 is smaller than its diameter. The handle 76 on the side wall of the storage frame 74 is located at the opening on the side wall of the storage ring 71. By setting an opening on the outer wall of the storage ring 71, a placement position can be provided for the handle 76 on the outer wall of the storage frame 74. The setting of the handle 76 makes it convenient to put and take out the storage frame 74.
[0024] like Figure 2 and Figure 3 As shown, a first bearing seat 6 is fixedly installed at the center of the top and bottom of the inner wall of the test chamber. The two ends of the first rotating rod 5 are respectively fixedly inserted between the two first bearing seats 6. A second bearing seat 12 is fixedly installed at the bottom of the inner wall of the test chamber and on the right side of the first rotating rod 5. The end of the second rotating rod 10 away from the motor 9 passes through and is fixedly inserted between the second bearing seats 12. The two first bearing seats 6 can fix and constrain the positions of the two ends of the first rotating rod 5, so that the first rotating rod 5 can rotate more stably. The second bearing seat 12 can increase the stability of the second rotating rod 10 during rotation.
[0025] like Figure 1 and Figure 2 As shown, a control unit 4 is fixedly installed on the right side of the housing 1. The front of the control unit 4 is equipped with a numerical display screen and control buttons. The air pressure, temperature and humidity inside the test chamber can be monitored in real time through the numerical display screen on the control unit 4, and the device can be operated through the control buttons.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A drug stability test chamber, comprising a chamber body (1), characterized in that: The front of the box (1) is provided with a test chamber. A vertical first rotating rod (5) is rotatably installed inside the test chamber. Four sets of storage components (7) are evenly arranged on the first rotating rod (5). A first bevel gear (8) is fixedly installed at the lower position of the first rotating rod (5). A motor (9) is fixedly installed on the right side of the box (1). A second rotating rod (10) extending into the test chamber is fixedly connected to the output end of the motor (9). A second bevel gear (11) is fixedly installed at the end of the second rotating rod (10) away from the motor (9). The side wall of the second bevel gear (11) meshes with the first bevel gear (8). A box door (2) that can be closed at the opening of the test chamber is hinged on the front of the box (1). The storage assembly (7) includes a storage ring (71), a collar (72), multiple connecting plates (73), and a storage frame (74). The collar (72) is fixedly sleeved on the first rotating rod (5). The storage ring (71) is located outside the collar (72), and the center of the collar (72) and the center of the storage ring (71) are located on the same vertical axis. The multiple connecting plates (73) are evenly and fixedly connected between the outer wall of the collar (72) and the inner wall of the storage ring (71). The storage frame (74) is placed between the storage rings (71). The bottom of the storage frame (74) is set as a storage mesh frame, and the outer wall of the storage frame (74) is attached to the inner wall of the storage ring (71). The bottom of the storage frame (74) is provided with a slot (75) extending to its center, and the slot (75) is fitted outside the collar (72). A handle (76) is fixedly installed on the outer end of the storage frame (74) away from the slot (75). The side wall of the storage ring (71) is provided with an opening, and the spacing between the openings on the side wall of the storage ring (71) is smaller than its diameter. The handle (76) on the side wall of the storage frame (74) is located at the opening on the side wall of the storage ring (71).
2. The drug stability test chamber according to claim 1, characterized in that: The test chamber has a first bearing seat (6) fixedly installed at the center of the top and bottom of the inner wall. The two ends of the first rotating rod (5) are respectively fixedly inserted between the two first bearing seats (6). The test chamber has a second bearing seat (12) fixedly installed at the bottom of the inner wall and on the right side of the first rotating rod (5). The end of the second rotating rod (10) away from the motor (9) passes through and is fixedly inserted between the second bearing seats (12).
3. The drug stability test chamber according to claim 1, characterized in that: A control unit (4) is fixedly installed on the right side of the housing (1), and a numerical display screen and control buttons are provided on the front of the control unit (4).