Microbial limit detector for food detection

By introducing a holding structure and a pressing structure into the microbial limit tester, the problem of the filter core being difficult to remove was solved, the probability of filter paper damage and moisture absorption was reduced, and the accuracy of experimental data was improved.

CN122128087APending Publication Date: 2026-06-02SHANDONG INST FOR PROD QUALITY INSPECTION
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Patent Information

Application Number
CN202610273825.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-07
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing microbial limit analyzers, the filter core is difficult to remove from the annular platform during use, the filter paper is easily damaged during removal, and the filter paper has a high probability of getting damp, which affects the accuracy of experimental data.

Method used

A microbial limit detector comprising a supporting structure, a squeezing structure, and a pressing structure was designed. The supporting structure, consisting of a supporting rod and a supporting plug, fixes the filter core. The squeezing structure pushes the annular plate to move, making space for the filter paper. The pressing structure presses the filter paper into the filter core, reducing the probability of filter paper damage and moisture absorption.

Benefits of technology

This facilitates the removal of the filter core and filter paper, reduces the probability of filter paper damage and moisture absorption, and improves the accuracy of experimental data.

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Abstract

The invention discloses a microbial limit detector for food detection, and relates to the technical field of microbial detection.The microbial limit detector comprises a limit instrument body, an annular platform is installed on the upper surface of the limit instrument body, a circular groove is formed in the upper surface of the annular platform, a plurality of annularly-arranged vertical grooves are formed in the edge of the top in the circular groove, and abutting parts are inserted into the vertical grooves; an annular groove is formed in the edge of the upper surface of the annular platform, a sealing piece is connected into the annular groove in a sliding mode, the inner surface of the upper end of the sealing piece is in contact with the filter paper, and the annular inner surface of the sealing piece is connected with a suction filtration bottle in a sliding mode. The abutting structure composed of the abutting rod, the abutting cylinder and the abutting plug is installed in the vertical groove, the abutting structure is used for abutting the filter iron core, the filter iron core cannot be completely immersed into the circular groove, filter paper and the filter iron core can be conveniently taken out from the circular groove after microorganism sampling is completed, and the damage probability of the filter paper is reduced.
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