一种防污染进样质谱仪
By using a pluggable feed tube design and a cleaning assembly, the cross-contamination problem caused by the mass spectrometer's sample introduction structure is solved, enabling rapid replacement and cleaning of the feed tube, and improving the accuracy of detection results and the stability of the instrument.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG MICROCHEM INSPECTION TECH CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-17
AI Technical Summary
The current mass spectrometer has a fixed sample introduction structure, which leads to sample residue and cross-contamination, affecting the accuracy of the detection results.
It adopts a plug-in feed tube design, combined with a snap-fit bracket and elastic components, to achieve quick installation and removal of the feed tube. It is equipped with an electric heating module and an electric needle valve, which supports sample input speed adjustment and temperature control. It is equipped with a cleaning assembly consisting of a limit ring, a rotating ring, a connecting tube and a magnetic block to achieve efficient rinsing.
It enables rapid replacement of the feed tube, avoids cross-contamination of sample residue, improves the accuracy and stability of test results, prevents clogging, and enhances the reliability of the instrument.
Smart Images
Figure CN224519871U_ABST
Abstract
Claims
1. A pollution-preventing sample-inlet mass spectrometer comprising a mass spectrometer body (1), a top of the mass spectrometer body (1) being provided with an interface module (2), the interface module (2) being provided with a feed inlet (3), characterized in that, A feed pipe (301) is inserted into the feed inlet (3). A fixed frame (4) is fixedly connected to the outer wall of the feed inlet (3). A snap-fit bracket (5) is slidably arranged on the fixed frame (4). One end of the snap-fit bracket (5) is designed with a wedge shape. A snap hole matching the wedge shape is opened at the lower end of the feed pipe (301). An elastic element (6) is sleeved on the snap-fit bracket (5). The two ends of the elastic element (6) are fixedly connected to the snap-fit bracket (5) and the fixed frame (4) respectively.
2. The anti-pollution sample introduction mass spectrometer of claim 1, wherein, The top end of the feed tube (301) is threaded to one end of the capillary tube (7) via a threaded ring (8). An electric heating module (9) is installed on the capillary tube (7). An electric needle valve (10) is installed on the other end of the capillary tube (7). A material conveying interface (11) is connected to the valve port of the electric needle valve (10).
3. A contamination control sample introduction mass spectrometer as defined in claim 2, wherein, The heating element of the electric heating module (9) is arranged along the length of the capillary tube (7).
4. A contamination control sample introduction mass spectrometer as defined in claim 3, wherein, A limiting ring (12) is fixedly sleeved on the feed pipe (301), and a rotating ring (13) is rotatably sleeved on the feed pipe (301). The rotating ring (13) is located above the limiting ring (12). A connecting pipe (14) for connecting to an external water source is connected and communicated on the rotating ring (13). A water inlet is opened on the feed pipe (301) that is aligned with the connecting pipe (14). Magnetic blocks (15) are fixedly attached to both the limiting ring (12) and the rotating ring (13). A rotary valve (16) is installed at the lower end of the feed pipe (301).
5. A contamination control sample introduction mass spectrometer as defined in claim 4, wherein, The rotating ring (13) can rotate 90 degrees, and the magnetic blocks (15) on it can respectively make magnetic contact with the magnetic blocks (15) on the limiting ring (12).
6. A contamination control sample introduction mass spectrometer as defined in claim 5, wherein, A handwheel (17) is provided on the threaded ring (8).