Threaded propulsion-type sample extractor

A technology of thread propulsion and extractor, which is applied in the preparation, sampling, and instrumentation of test samples, which can solve the problems of manual pressurized sampling and secondary pollution of extracted samples, and achieve the effect of avoiding secondary pollution

Pending Publication Date: 2018-09-28
江苏宏众百德生物科技有限公司
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AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to design a threaded push-type sample extractor to solve the problem that the existing sample extractor cannot be manually pressurized and sampled outdoors or under other unpowered conditions and that the extracted sample is taken twice during the extraction process. Pollution Technical Issues

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  • Threaded propulsion-type sample extractor
  • Threaded propulsion-type sample extractor
  • Threaded propulsion-type sample extractor

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Embodiment Construction

[0024] combine Figure 1 to Figure 4 , the present invention provides a screw pusher type sample extractor, comprising a retractable sample volumetric flask 1, a sample extractor housing 2, a pressure detection module 3, a screw type propulsion device and a filter device.

[0025] During operation, firstly, the original solution is poured into the retractable sample volumetric flask 1, and the retractable sample volumetric flask 1 is put into the sample extractor housing 2. Then the filter device is docked with the screw type propulsion device, and pressure is applied to the retractable sample volumetric flask 1 through the screw type propulsion device. Thereby forcing the retractable sample volumetric flask 1 to be compressed, the original solution therein passes through the filter membrane 9 placed in the filter device, the sample with a diameter greater than the filter membrane aperture will be filtered on the filter membrane, and the impurities and solution with a diameter...

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Abstract

The invention provides a threaded propulsion-type sample extractor. The threaded propulsion-type sample extractor comprises a telescopic sample volumetric flask, a sample extractor shell, a pressure detection module, a screw type propulsion device and a filtering device; the telescopic sample volumetric flask is located in the sample extractor shell; one end of the sample extractor shell is connected with the filtering device; the screw type propulsion device is inserted into the other end of the sample extractor shell; the pressure detection module is arranged between the screw type propulsion device and the telescopic sample volumetric flask; the pressure detection module is connected onto the screw type propulsion device. By adopting the threaded propulsion-type sample extractor, completely-manual operation can be conducted in the outdoor environment, intervention of external power is not needed, and the situation can be effectively avoided that a pressure mechanism is in direct contact with a solution to cause secondary pollution to a sample.

Description

technical field [0001] The invention relates to a sample extractor for solid-liquid separation, in particular to a thread push type sample extractor. Background technique [0002] The existing sampling pipe consists of a former solution container, a filter, a power input assembly and a filtered solution collector. Its working principle is: place the filter membrane between the original solution container and the power input component, and fix it with clips. Then attach the filtered solution collector to the underside of the power input assembly. [0003] The power input component is connected to an external vacuum pump. When the external vacuum pump starts to work, a negative pressure difference is formed between the cavity of the power input component at the lower end of the filter membrane and the cavity of the original solution container, thereby forcing the original solution to permeate the filter membrane from top to bottom, which is larger than the filter membrane. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34G01N1/28
CPCG01N1/28G01N1/286G01N1/34
Inventor 朱丛敏张军毅周克茹朱永文牟列斌李艳
Owner 江苏宏众百德生物科技有限公司
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