Vacuum sucking filtration sample collector

Abstract

The invention belongs to the technical field of experimental equipment, and particularly relates to a vacuum sucking filtration sample collector, which comprises a suction filtration funnel, a samplecollection assembly and a suction filtration bottle, wherein the suction filtration funnel is inserted into the bottle opening of the suction filtration bottle and connected with the suction filtration bottle in a sealed mode, a neck part contracting inwards is arranged below the bottle opening of the suction filtration bottle, the sample collection assembly is arranged on the inner side of the neck part, the sample collection assembly is used for collecting samples, a suction filtration opening is formed in the bottle wall of the suction filtration bottle, the sample collecting assembly comprises a supporting funnel and a sample bottle, the supporting funnel is clamped at the neck part of the suction filtration bottle, the lower end of the supporting funnel is connected with the sample bottle, and a plurality of vent holes are formed in the supporting funnel in the circumferential direction. In the sample collection process, the suction filtration bottle does not need to be washed andmoistened, and the sample is directly put into the sample bottle, so that tedious experimental operation is avoided, ways for introducing experimental errors are reduced, and the experimental precision and the accuracy are improved.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, in particular to a vacuum filtration sample collector. Background technique [0002] Vacuum filtration is a commonly used solid-liquid separation equipment in laboratories. Its structure includes a GG17 suction bottle with upper nozzle, a suction pump, a suction funnel and a rubber tube. The suction filter pump pumps out the air in the filter bottle, the inside of the filter bottle is under negative pressure, and the liquid in the filter funnel is sucked into the filter bottle. [0003] To obtain a filtrate sample using a vacuum device, it is first necessary to select an appropriate suction filter bottle according to the required volume of the filtrate sample. The upper mouth GG17 suction filter bottle is an important component of vacuum filtration equipment, and its capacity is 125mL, 250mL, 500mL, 1000mL, 2500mL, 5000mL, 10000mL, 15000mL, 20000mL. Secondly, in the suction filtr...

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a vacuum filtration sample collector to solve the problem that the existing upper mouth GG17 suction filtration bottle needs to have multiple specifications, the washing and rinsing operation is cumbersome, the washing is not clean and the rinsing is not thorough. The experimental error and other problems caused by

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