Consumable sealing structure of trace explosive detector based on fluorescence quenching technology

Abstract

The invention discloses a consumable sealing structure of a trace explosive detector based on a fluorescence quenching technology. The consumable sealing structure comprises a consumable, a light pathhousing and a consumable rear cover, wherein the consumable rear cover is connected to the light path housing; the consumable is movably inserted into the light path housing; a through hole is formedin the middle upper part of the light path housing; an axial sealing ring is arranged at one end of the through hole in a sleeving manner, and an air outlet hole is formed in the other end of the through hole; a limiting seat is arranged below the consumable rear cover; a shifting handle is arranged on the consumable rear cover; a locking mechanism is arranged at the end part of the consumable rear cover; a sealing mechanism is arranged behind the handle. The consumable sealing structure is unlocked by adopting a portable slope pushing structure, so that the mounting of the consumable is facilitated. Through the adoption of a consumable and air path integration design, the consumable comprises a complete air path structure, so that complicated air path cleaning work is avoided. The same surface of the consumable sealing structure disclosed by the invention integrates two sealing structures, namely end surface sealing and conical surface sealing, so that the sealing property is greatlyimproved.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a sealing structure for consumables based on fluorescence quenching technology trace explosive detectors. Background technique [0002] The existing heating sample introduction structure has the following shortcomings: 1) the installation of consumables is inconvenient; 2) the cleaning of the gas path is troublesome, and the cleaning takes a long time; 3) the sealing performance is poor. Therefore, in view of these deficiencies, it is necessary to propose an improved sealing mechanism to solve the above deficiencies. SUMMARY OF THE INVENTION [0003] In order to solve the above technical problems, the present invention proposes a consumable sealing structure for trace explosive detectors based on fluorescence quenching technology, which solves the deficiencies of the existing heating sample injection structures. [0004] In order to achieve the above purpose, the technical solution of th...

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Problems solved by technology

[0002] The existing heating sample injection structure has the following disadvantages: 1) It is inconvenient to install consumables; 2) It is troublesome to clean the gas path, and it takes a long time to clean; 3) The sealing performance is poor

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