Split type mouth calling type laughing gas detector with replaceable nozzle
By designing a split-type nitrous oxide detector that allows for easy replacement of the nozzle, and utilizing a sealing control component, a composite sealing component, and a centering guide component, the problem of decreased sealing performance caused by aging and wear of the sealing ring was solved, thereby improving the accuracy and reliability of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HANGZHOU WEISHI BIOTECHNOLOGY CO LTD
- Filing Date
- 2026-04-30
- Publication Date
- 2026-07-17
AI Technical Summary
The sealing rings of existing oral nitrous oxide detectors age and wear due to repeated insertion and removal, resulting in decreased sealing performance and affecting the accuracy and reliability of the test results.
A split-type oral-exhalation nitrous oxide detector with easy-to-change nozzle was designed. It adopts a sealing control component, a composite sealing component, and a centering guide component. Automatic sealing is achieved by expanding the sealing bladder when the nozzle tube is inserted, and the baffle limit is released when it is pulled out to reduce friction. The composite sealing component provides a double mechanical sealing barrier, and the centering guide component ensures that the nozzle tube is inserted in a centered position.
It extends the service life of the sealing structure, improves the accuracy and reliability of test results, and avoids problems such as leakage and excessive insertion resistance caused by seal failure or misalignment.
Smart Images
Figure CN122398263A_ABST