Sampling device of time-of-flight mass spectrometer and time-of-flight mass spectrometer

By using a combination of door panel, sealing block, door suction assembly and elastic assembly in the injection device of the time-of-flight mass spectrometer, the problem of lax sealing of the injection device is solved, and high sealing and vacuum maintenance are achieved.

CN222690632UActive Publication Date: 2025-03-28RONGZHI BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421391521.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-18
Publication Date
2025-03-28
Estimated Expiration
2034-06-18

AI Technical Summary

Technical Problem

The existing time-of-flight mass spectrometer injection device has problems of lax sealing and complex structure between the sealing door body and the housing.

Method used

A time-of-flight mass spectrometer injection device is designed, which adopts a combination of door panels, sealing blocks, door suction components and elastic components. The sealing is achieved through the pivot connection between the door panels and the housing and the suction force of the magnetic suction components. The elastic components press the sealing block after the door body is closed to improve sealing performance.

Benefits of technology

With this structure, the high sealing of the injection device is achieved, reducing the impact of tolerance and deformation on the sealing property, simplifying the sealing structure, improving mechanical stability, and improving the vacuum retention ability.

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Abstract

The utility model relates to the technical field of mass spectrometer equipment, particularly provides a time-of-flight mass spectrometer and a sampling device thereof, and aims to solve the problems that a door body and a shell of the sampling device of the conventional time-of-flight mass spectrometer are not tightly sealed and the structure is complicated. In order to achieve the purpose, the sample introduction device comprises a shell, two ends of the shell are respectively communicated with an external space and a vacuum cavity through a first sample introduction port and a second sample introduction port, and a sample introduction channel communicated with the first sample introduction port and the second sample introduction port is formed in the shell; the door body is arranged at the first sample inlet and comprises a door plate and a sealing block, the door plate is pivotally connected with the shell to drive the sealing plate to open and close the first sample inlet, and the sealing block is movably connected to the inner side of the door plate and can block the first sample inlet; the door stopper assembly can tightly suck the door body on the shell; and the elastic assembly is arranged between the door plate and the sealing block so as to press the sealing block on the surface of the shell after the door body is closed, and the fitting degree of the sealing block and the surface of the shell is improved.
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