Multilayer film negative pressure type food detection sample rapid filtering device

By employing a multi-layer membrane negative pressure design and stable connection, the pressure problem in the connecting tube caused by improper filter cartridge connection was solved, achieving efficient sample filtration and homogenization, and improving the quality of food testing.

CN224270398UActive Publication Date: 2026-05-26HENAN STANDARD SPECTRUM TESTING TECH CO LTD
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Patent Information

Application Number
CN202521366645.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-01
Publication Date
2026-05-26
Estimated Expiration
2035-07-01

AI Technical Summary

Technical Problem

In existing food testing sample filtration devices, improper connection of the filter cartridge can easily cause the connecting pipe to bear additional pressure, affecting its service life.

Method used

The design employs a multi-layer membrane negative pressure system. By arranging a multi-layer membrane body inside the second filter cartridge and using a negative pressure pump to provide a negative pressure environment, combined with the threaded locking connection of the connecting plate and fixing bolts, a stable connection between the filter cartridges is ensured. At the same time, a drive motor is used to drive the stirring shaft for homogenization.

Benefits of technology

The improved connection capability and feed filtration capability of the filtration device enhanced the homogeneity of the samples and improved the efficiency and accuracy of the detection.

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Abstract

The utility model relates to the technical field of food detection, and discloses a multilayer film negative pressure type food detection sample rapid filtering device which comprises a first filtering cylinder and a second filtering cylinder, a multilayer film main body is arranged in the second filtering cylinder, and the output end of a driving motor is in transmission connection with a stirring shaft. The bearing plates are fixed on the two sides of the inner wall of the first filter cartridge, the second positioning columns are fixed on the tops of the bearing plates, and the second filter plate is assembled above the bearing plates, so that substances are subjected to multi-layer filtration in the multi-layer membrane main body in the working process, and a negative pressure pump is matched to provide a negative pressure environment in the process; the two sides of the first filter cartridge and the two sides of the second filter cartridge can be connected and assembled through connecting plates, and during assembly, the first filter cartridge and the connecting plates as well as the connecting plates and the second filter cartridge are connected and fixed through fixing bolts respectively; in this way, the connecting and assembling capacity is well improved in the working process.
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