Walk-in test box
By introducing a buffer box and a through-hole structure into the test chamber, and combining control components and a fan to regulate airflow, the problem of environmental instability when the test chamber is opened and closed was solved, and the stability and consistency of the environment inside the test chamber were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-06
AI Technical Summary
When the door of an existing walk-in drug stability test chamber is opened and closed, the air inside the chamber directly clashes with the production environment, resulting in heat loss and environmental instability. Existing air curtain machines are not effective at blocking the airflow.
Design a walk-in test chamber, including a buffer chamber and a through-hole. The environmental status is detected by control components and test pieces, the door lock and the opening of the through-hole are controlled, and the air circulation is regulated by a fan to ensure that the environment inside the buffer chamber is consistent with the environment inside the test chamber, thereby reducing external environmental interference.
It effectively reduces the interference of the external environment on the test chamber, improves the stability of temperature and humidity, and ensures the stability and consistency of the environment inside the test chamber.
Smart Images
Figure CN223969998U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of test chambers, and more particularly to a walk-in test chamber. Background Technology
[0002] Reference Figure 1 The existing walk-in pharmaceutical stability testing chambers lack isolation between the doorway and the production environment. Each time the door is opened and closed, the air inside the chamber directly interacts with and exchanges with the production environment, resulting in heat loss. This heat loss causes fluctuations in the chamber's temperature and humidity. To address this shortcoming, current methods involve installing an air curtain above the doorway, which is activated when the door is opened to provide some isolation. However, in practice, the airflow generated by the air curtain accelerates air movement at the doorway after the door is opened, affecting the internal environment and thus rendering the air curtain ineffective. Utility Model Content
[0003] In order to reduce heat changes inside the test chamber and improve the stability of the environment inside the test chamber, this application provides a walk-in test chamber.
[0004] This application provides a walk-in test chamber, which adopts the following technical solution:
[0005] A walk-in test chamber includes a chamber body and a buffer chamber disposed on one side of the chamber body. The side wall of the chamber body has a door that opens and closes towards the inside of the buffer chamber. The buffer chamber has a second door that opens and closes towards the outside of the buffer chamber. The chamber body has a through hole communicating with the buffer chamber. A control component is disposed in the through hole. The control component is used to balance the environment inside the chamber body and the buffer chamber. The buffer chamber contains a test piece and a controller. The test piece is electrically connected to the controller. The first door has a door lock that is electrically connected to the controller. The controller is used to control the opening of the first door lock according to the value of the test piece.
[0006] By adopting the above technical solution, door one is used to control the opening and closing of the cabinet, door two is used to control the opening and closing of the buffer box, the through hole is used to connect the cabinet and the buffer box, connecting the air environment in the two spaces, the control component is used to control the gas flow in the through hole; the controller is used to control the opening conditions of door lock one, the test component is used to test the air state in the cabinet, so that the controller can control whether door lock one is opened, the control component controls the opening and closing of the through hole, balances the environment of the two spaces, reduces the influence of the external environment on the air environment in the cabinet, and improves the stability of the environment in the cabinet.
[0007] Preferably, the side of the through hole facing the buffer box is provided with a movable plate, and the side of the box body facing the inside of the buffer box is provided with a mounting seat located at the upper end of the movable plate. The upper end of the movable plate is provided with a rotating shaft that is rotatably connected to the mounting seat.
[0008] By adopting the above technical solution, the movable plate is used to block the side of the through hole facing the buffer box, and the mounting base and rotating shaft are used to rotatably connect the movable plate to the box body, so that the control component can control the rotation of the movable plate and control the opening and closing state of the through hole.
[0009] Preferably, the upper end of the movable plate is in close contact with the side wall of the box, the lower end of the movable plate is in close contact with the side wall of the box, the movable plate covers the opening range of the through hole, and the movable plate has a groove communicating with the through hole on the side facing the through hole.
[0010] By adopting the above technical solution, the movable plate covers the opening range of the through hole, and the upper and lower ends of the movable plate are in close contact with the side wall of the box, which improves the closing effect of the movable plate on the through hole. The groove provides control space for the control component, while reducing the weight of the movable plate and making it easier for the control component to control the rotation of the movable plate.
[0011] Preferably, the housing is provided with a sealing block on the side facing the upper end of the movable plate, and the movable plate is provided with a sealing groove for embedding the sealing block.
[0012] By adopting the above technical solution, the sealing block and the sealing groove improve the sealing effect between the box and the movable plate.
[0013] Preferably, a second sealing block is provided on the side of the housing facing the lower end of the movable plate, and a second sealing groove for embedding the second sealing block is provided on the movable plate, and the bottom surface of the second sealing block is sloped.
[0014] By adopting the above technical solution, the sealing block 2 and the sealing groove 2 improve the sealing effect between the movable plate and the box. The bottom surface of the sealing block 2 is sloping, which makes it easy to adapt to the opening and closing state of the movable plate and improve the sealing effect of the sealing block 2.
[0015] Preferably, the control component is a fan.
[0016] By adopting the above technical solution, the control component is a fan. When the fan is started, it blows the movable plate, and the movable plate rotates to avoid the air outlet of the through hole, which facilitates air circulation between the box and the buffer box and helps to balance the environment of the two spaces. When the environment inside the buffer box is similar to that inside the box, the door is opened to improve the environmental stability inside the box.
[0017] Preferably, the test piece includes a temperature sensor and a humidity sensor electrically connected to the controller.
[0018] By adopting the above technical solution, the test piece is used to detect the environment inside the buffer box. When the environment inside the buffer box differs greatly from the environment inside the box, the controller controls the door lock to tighten until the controller adjusts the environment inside the buffer box to be similar to the environment inside the box, thereby improving the stability of the environment inside the box and reducing the interference of the external environment on the box.
[0019] Preferably, the enclosure is equipped with an air conditioner.
[0020] By adopting the above technical solution, the air conditioner can regulate the air parameters inside the chamber, including temperature, humidity, and airflow, to ensure the stability of the environment inside the chamber.
[0021] In summary, the buffer box of this application provides a buffer space, effectively reducing the possibility of direct interference from the external environment to the environment inside the box. The test piece is used to detect the environmental state inside the buffer box. When the environment inside the buffer box differs significantly from the environment inside the box, the controller identifies this and controls door lock one to close. At the same time, the controller begins to equalize the environments inside the two boxes until the environmental state inside the buffer box is not significantly different from the environmental state inside the box. At this point, door lock one can be opened, effectively reducing the possibility of interference from the external environment to the environment inside the box and improving the stability of the environment inside the box. Attached Figure Description
[0022] Figure 1 This is a structural diagram of existing technology;
[0023] Figure 2 This is a structural schematic diagram of a walk-in test chamber according to this application;
[0024] Figure 3 This is a cross-sectional view of the active panel of this application.
[0025] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Buffer box; 3. Door body one; 4. Door body two; 5. Through hole; 6. Control component; 7. Movable plate; 8. Mounting base; 9. Groove; 10. Sealing block one; 11. Sealing groove one; 12. Sealing block two; 13. Sealing groove two; 14. Air conditioner. Detailed Implementation
[0026] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described below. The following embodiments are only used to more clearly illustrate the technical solution of this application, and should not be used to limit the protection scope of the present invention.
[0027] In the description of this application, it should be noted that the orientations or positional relationships indicated by terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to 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.
[0028] This application discloses a walk-in test chamber. (Refer to...) Figure 2 and Figure 3The system includes a housing 1 and a buffer box 2 installed on one side of the housing 1. A door opening (first opening) communicating with the buffer box 2 is provided on the side wall of the housing 1, and a door (first door 3) is installed within the door opening. A lock (first lock) for controlling the opening and closing of door (first door 3) is installed on the housing 1. A second door opening (second door 4) is provided on the outer side of the buffer box 2, and a lock (second lock) for controlling the opening and closing of door (second door 4) is installed on the buffer box 2. A through hole (5) is provided on the inner side wall of the housing 1 facing the buffer box 2, and a control component (6) is installed within the through hole (5) to control the gas flow within the housing 1 and the buffer box 2. To ensure environmental stability within the housing 1, an air conditioner (14) is installed inside the housing 1 to facilitate control of the environmental conditions within the housing 1 and improve environmental stability.
[0029] Reference Figure 2 and Figure 3 To further reduce the impact of the external environment on the internal environment of the enclosure 1, a test piece and a controller are installed inside the buffer box 2 to detect the internal environment. The test piece and the controller are electrically connected. Door lock one is also electrically connected to the controller. The controller controls whether door lock one is opened based on whether the value detected by the test piece meets the specified range. In this embodiment, door lock two is electrically connected to the controller. When door lock two is open, door lock one is closed and cannot be opened. When door lock two is closed, the controller analyzes the test value of the test piece to control whether door lock one is opened. If the value meets the requirements, door lock one can be opened; if the value does not meet the requirements, door lock two cannot be opened. The test piece includes a temperature sensor and a humidity sensor to detect the temperature and humidity inside the buffer box 2. In this embodiment, the temperature inside the enclosure 1 is a, and the humidity is b. The controller sets the test piece range to a—±(a+10)℃ and the humidity range to b—±(b+20)%RH. When the test value of the test piece is not within this range, door lock one cannot be opened; when the test value of the test piece is within this range, door lock one can be opened. During implementation, staff can adjust the temperature and humidity according to the specific items inside the box, and the range of values can vary.
[0030] Reference Figure 2 and Figure 3 When the environment inside buffer chamber 2 differs significantly from that inside chamber 1, air conditioner 14 and control unit 6 are activated, transferring air from chamber 1 to buffer chamber 2 to quickly bring the environment inside buffer chamber 2 to the standard range. Control unit 6 is a fan installed in through hole 5. When the fan is activated, it transfers air from chamber 1 to buffer chamber 2, adjusting the environment inside buffer chamber 2 to within the range of the environment inside chamber 1.
[0031] Reference Figure 2 and Figure 3A movable plate 7 is installed on the side of the through hole 5 facing the buffer box 2. A mounting base 8 is fixedly installed on the side of the box 1 facing the inside of the buffer box 2, located on the upper end of the movable plate 7. A rotating shaft is fixedly installed on the upper end of the movable plate 7 and rotatably connected to the mounting base 8. When the fan starts, the fan blows the movable plate 7 to rotate, opening the end of the through hole 5 facing the buffer box 2, facilitating the flow of air from the box 1 into the buffer box 2. The side wall of the movable plate 7 facing the box 1 is in close contact with the side wall of the box 1, and the movable plate 7 covers the opening range of the through hole 5, used to close the end of the through hole 5. A groove 9 communicating with the through hole 5 is opened on the side of the movable plate 7 facing the through hole 5. The groove 9 provides airflow space for the fan, while reducing the weight of the movable plate 7, making it easier for the fan to control the opening and closing of the movable plate 7, and improving the stability of the environment inside the box 1.
[0032] Reference Figure 2 and Figure 3 To further improve the sealing between the movable plate 7 and the housing 1 when closed, a sealing block 10 is provided on the side of the housing 1 facing the movable plate 7. A sealing groove 11 for embedding the sealing block 10 is provided on the movable plate 7. In this embodiment, the cross-section of the sealing block 10 is arc-shaped, and the shape of the sealing groove 11 corresponds to the shape of the sealing block 10. The sealing block 10 is located at the upper end of the movable plate 7. In this embodiment, the sealing block is inverted U-shaped. A second sealing block 12 is provided on the side of the housing 1 facing the movable plate 7 at the lower end of the movable plate 7. The second sealing block 12 and the first sealing block 10 form an opening, covering the area of the through hole 5 and improving the sealing effect between the movable plate 7 and the housing 1. A second sealing groove 13 for embedding the second sealing block 12 is provided on the movable plate 7. The bottom surface of the second sealing block 12 is sloped, facilitating the rotation of the movable plate 7 to fit the second sealing block 12. In this embodiment, the buffer box 2 is also provided with a hole on the other side. A set of movable plates 7 is provided on the side of the hole facing outward. A gas one-way valve can also be provided in the hole to allow gas to flow out of the buffer box 2.
[0033] The implementation principle of a walk-in test chamber according to an embodiment of this application is as follows: Before entering chamber 1, the operator first opens door 4 to enter the buffer chamber 2, and then closes door 4. If the environmental state inside the buffer chamber 2 is similar to that inside chamber 1, the operator can directly open door 3 to enter chamber 1. If the environmental state inside the buffer chamber 2 differs significantly from that inside chamber 1, exceeding a set range, a fan is activated to draw air from chamber 1 into the buffer chamber 2, adjusting the environmental state. Once the environmental state inside the buffer chamber 2 meets the standard, the operator can open door 3 to enter chamber 1. This application effectively reduces the interference of the external environment on the environment inside chamber 1, improving the stability of the environment inside chamber 1.
[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A walk-in test chamber characterized by: The utility model relates to a buffer box (2) and the buffer box (2) one side of box (1) are arranged, the side wall of box (1) is equipped with the door body one (3) that opens and shuts to the inside of buffer box (2), be equipped with the door body two (4) that opens and shuts to the outside of buffer box (2) on buffer box (2), be equipped with the through -hole (5) that communicates with buffer box (2) on box (1), be equipped with control part (6) in through -hole (5), control part (6) is used for balancing the environment in box (1) and buffer box (2), be equipped with test piece and controller in buffer box (2), test piece is electrically connected with controller, be equipped with the door lock one that is electrically connected with controller on door body one (3), and the controller is used to control the opening of door lock one according to the numerical value of test piece.
2. The walk-in test chamber of claim 1, wherein: The side of through -hole (5) towards buffer box (2) is equipped with movable plate (7), the side of box (1) towards the inside of buffer box (2) is equipped with mounting seat (8) in movable plate (7) upper end, the upper end of movable plate (7) is equipped with the pivot of rotation connection with mounting seat (8).
3. The walk-in test chamber of claim 2, wherein: The upper end of movable plate (7) is close to the side wall of box (1), the lower end of movable plate (7) is close to the side wall of box (1), movable plate (7) covers the range of through -hole (5) opening, the side of movable plate (7) towards through -hole (5) is equipped with the recess (9) of communication with through -hole (5).
4. The walk-in test chamber of claim 2, wherein: The side of box (1) towards the upper end of movable plate (7) is equipped with sealing block one (10), the upper end of movable plate (7) is equipped with sealing groove one (11) for sealing block one (10) embedding.
5. The walk-in test chamber of claim 2, wherein: The side of box (1) towards the lower end of movable plate (7) is equipped with sealing block two (12), the upper end of movable plate (7) is equipped with sealing groove two (13) for sealing block two (12) embedding, the bottom of sealing block two (12) is ramped.
6. The walk-in test chamber of claim 1, wherein: The control part (6) is a fan.
7. The walk-in test chamber of claim 1, wherein: The test piece includes temperature sensor and humidity sensor electrically connected with the controller.
8. The walk-in test chamber of claim 1, wherein: The box (1) is equipped with air conditioner (14).