Negative pressure transfer window
By designing a negative pressure transfer window, negative pressure is created using a return air mesh plate, air supply device, and filter device, which solves the problem of insufficient sealing of the positive pressure transfer window and achieves self-cleaning and improved safety within the transfer chamber.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGKE SHENGJIE (GUANGDONG) ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-02
AI Technical Summary
Existing positive pressure transfer windows have insufficient sealing, which may lead to the risk of internal contaminants leaking into external rooms, especially when transferring harmful, toxic or highly reactive substances.
A negative pressure transfer window is designed. By setting up components such as a return air mesh plate, an air supply device, a filter device, and a regulating valve, the airflow is ensured to form negative pressure in the transfer chamber to prevent internal objects from contaminating the external room. Pre-filters and high-efficiency filters, as well as a sterilization device, are used to improve the purification effect.
It achieves self-cleaning within the transfer chamber, maintains a negative pressure state, avoids contamination of the external environment by items, and improves the safety factor, especially when transferring volatile items.
Smart Images

Figure CN224314856U_ABST