CN216012910U - Plankton riffle sampler - Google Patents

Abstract

The utility model discloses a plankton sample splitter, which comprises a cylindrical sample splitter shell and a tubular separator, wherein the separator is movably sleeved in the sample splitter shell, a circular truncated cone matched with the inner diameter of the separator is arranged in the sample splitter shell, 12 sample splitting ports are circumferentially arranged on the sample splitter shell around the circular truncated cone at equal intervals, the sample splitting modes of 1-minute 2, 1-minute 3, 1-minute 4, 1-minute 6 and 1-minute 12 can be realized, and a magnetic stirring device, a level gauge and a level adjusting device are arranged on the base of the sample splitter shell. The sample splitter can realize the function of low-speed and uniform-speed magnetic stirring, reduce the damage of a stirring device to organisms in the sample to the maximum extent and achieve the effect of uniformly mixing the sample.

Description

Plankton riffle sampler

Technical Field

The utility model belongs to the field of marine organism ecological investigation and monitoring, and particularly relates to a plankton sample splitter.

Background

In the ecological investigation monitoring of marine organism, plankton monitoring data mainly rely on artificial mode to appraise analysis and statistics to the biomass in the water sample of gathering at present, and at the actual appraisal analysis in-process, the plankton water sample of extraction mixes inhomogeneous can lead to the branch appearance inhomogeneous, causes plankton actual biomass value to produce the deviation, leads to monitoring data can not truly reflect the ecological situation of aassessment sea area. In the identification and statistics process, because the biomass in the monitored sea area is huge, monitoring personnel only collect a small part of mother samples (about 1L), then extract a water sample with a certain volume from the mother samples to identify and analyze the type of plankton, and calculate the statistical value of the number of the plankton in the monitored sea (water) area according to the conversion of the volume multiple of the identification sample. Therefore, the statistics of the way of sampling, identifying and comparing the plankton samples is one of the technical means for improving the quality control of the plankton monitoring data, and the preparation of the plankton examination samples and the comparison and analysis of the comparison and measurement samples by a plurality of monitoring mechanisms and laboratories are also one of the effective quality management means for verifying the monitoring capability of each laboratory and further improving the technical level of monitoring personnel. In order to ensure the uniformity of a sample when a technician samples or prepares an examination sample, the key link for ensuring the quality of the sample is to rapidly, conveniently and uniformly split and package the sample. Generally, a traditional method of successively sampling by subpackaging is adopted, and a plurality of sub-samples are successively subpackaged from a mother sample, so that the sub-samples are easily insufficiently mixed and unevenly subpackaged, the conditions of liquid splashing, liquid leakage and the like frequently occur in the actual operation process due to improper operation of personnel, and the quality of an examination sample is directly influenced. Therefore, the plankton sample splitter which has the advantages of good sample splitting effect, simple structure, simplicity and convenience in operation and low cost and can realize simultaneous splitting of multiple parts is particularly important. The plankton sample splitter of the present invention has not been reported yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the existing marine organism ecological investigation monitoring technology, and provides a plankton sample splitter.

The purpose of the utility model is realized by the following technical scheme:

the utility model provides a plankton riffle sampler, includes columniform riffle sampler casing and tubulose separator, the mobilizable cup joint in inside of riffle sampler casing the separator, the inside of riffle sampler casing be provided with the round platform that the internal diameter of separator agrees with mutually, the round platform is equidistant 12 branch appearance mouths of being provided with on the riffle sampler casing all around, can realize 1 minute 2, 1 minute 3, 1 minute 4, 1 minute 6, 1 minute 12 branch appearance form, and the base of riffle sampler casing is equipped with magnetic stirring device, spirit level and level adjustment device.

Furthermore, when the magnetic stirring device is used, the rotor is firstly placed in the separator, and the stirring speed of the stirrer can be controlled by adjusting the magnetic force after the separator is electrified.

Further, the upper parts of the sample splitter shell and the separator are provided with handles.

Furthermore, be equipped with the liquid level scale mark on the riffle sampler casing, riffle sampler casing and separator are transparent material.

Furthermore, each sample distributing opening is provided with a control valve.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

1. the utility model is a cylindrical sample splitter, which fully mixes the mother sample in the inner cavity of the separator by a magnetic stirring device, the separator is drawn out while stirring, the mother sample liquid flows out from the bottom sample hole at the same time, and is uniformly divided into spaces with different volumes to obtain a plurality of samples with a certain volume ratio, a technician can analyze any one of the samples or a plurality of technicians respectively take one of the samples to simultaneously identify and analyze the samples, and finally the total condition of the original sample is converted according to the volume ratio;

2. the sample splitter can realize the function of low-speed and uniform-speed magnetic stirring, reduces the damage of a stirring device to organisms in a sample to the maximum extent, and simultaneously achieves the effect of uniformly mixing the sample;

3. in the specific implementation of the utility model, an adjusting knob is arranged below a base of a sample splitter shell in a three-point positioning mode, so that the sample splitting is carried out under the horizontal state of the liquid level, and the uniformity of sample splitting samples is improved;

4. the utility model can fully stir and mix the mother sample, greatly improves the uniformity of the divided samples;

5. the method is suitable for identifying and analyzing the ecology of the plankton in the ocean (water system), is suitable for monitoring the internal quality control of a mechanism, comparing and measuring a large-scale field, preparing samples for quality management activities such as personnel ratio and the like, and providing uniform and reliable plankton samples.

6. The utility model has the advantages of simple structure, high automation degree, simple and convenient operation, low cost and good sample separation effect, is applied to national-level site comparison and measurement activities, effectively verifies the sample separation effect and is suitable for popularization and use.

Drawings

Fig. 1 is a schematic diagram of an explosive structure of the present invention.

Fig. 2 is a schematic plan view of the present invention.

Fig. 3 is a schematic top view of the present invention.

Reference numerals: 1-separator, 2-sample divider shell, 3-sample dividing port, 4-magnetic stirring device, 5-level adjusting device and 6-level meter

Detailed Description

The utility model is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to fig. 3, the plankton sample splitter provided by the utility model comprises a cylindrical sample splitter housing 2 and a tubular separator 1, the separator 1 is movably sleeved in the sample splitter housing 2, a circular truncated cone matched with the inner diameter of the separator 1 is arranged in the sample splitter housing 2, 12 sample splitting ports 3 are circumferentially arranged on the sample splitter housing around the circular truncated cone at equal intervals, so that the sample splitting modes of 1 splitting 2, 1 splitting 3, 1 splitting 4, 1 splitting 6 and 1 splitting 12 can be realized, and a magnetic stirring device 4, a level 6 and a level adjusting device 5 are mounted on the base of the sample splitter housing. In this embodiment, the magnetic stirring apparatus is a 601-type magnetic stirring electrode holder of Shanghai Sanxin Meter plant. The horizontal adjusting device adopts a three-point positioning mode to install the adjusting knob below the base of the sample splitter shell, so that the sample splitting is carried out under the horizontal state of the liquid level, and the uniformity of the sample splitting sample is improved.

Be equipped with the liquid level scale mark on the riffle sampler casing 2, riffle sampler casing 2 is transparent material with separator 1 in this embodiment and makes. Accessible bucket wall liquid level scale mark obtains the liquid level value, can put into the separator with magnetic stirring in during the use, but bottom magnetic stirring device circular telegram back adjustable magnetic force size control stirring speed of stirring, and the base system has detectable horizontally balancing appearance 6 and level control device 5. When the separator is used, a technician firstly installs the separator into the main body, then pours the mother sample into the barrel from the opening of the separator, adjusts the sample splitter to be horizontal through the horizontal adjusting device, ensures that the mother sample liquid in the barrel keeps the horizontal state for sample splitting operation, fully mixes the mother sample in the inner cavity of the separator through the magnetic stirring device, can upwards draw out the separator after even stirring or during stirring, immediately and simultaneously flows out the mother sample liquid in the separator from the sample splitting holes at the bottom of the sample splitter main body, and can realize uniform sample splitting into spaces with different volumes through adjusting the sample splitting form through the control valve due to the control valve arranged at each sample splitting opening, so as to obtain a plurality of samples with a certain volume ratio, and a monitoring worker can analyze any one of the samples and finally convert the total condition of the original sample according to the volume ratio; the low-speed and uniform-speed magnetic stirring device has the advantages that the damage of the stirring device to organisms in the sample is reduced to the greatest extent, and the effect of uniformly mixing the sample is achieved; the utility model has the advantages of simple structure, high automation degree, simple and convenient operation, low cost and good sample separation effect, is applied to national-level site comparison and measurement activities, effectively verifies the sample separation effect and is suitable for popularization and use.

The present invention is not limited to the above-described embodiments. The foregoing description of the specific embodiments is intended to describe and illustrate the technical solutions of the present invention, and the above specific embodiments are merely illustrative and not restrictive. Those skilled in the art can make many changes and modifications to the utility model without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (5)

1. The utility model provides a plankton riffle sampler, its characterized in that, includes columniform riffle sampler casing and tubulose separator, the mobilizable cup joint in inside of riffle sampler casing the separator, the inside of riffle sampler casing be provided with the round platform that the internal diameter of separator agreed with mutually, the round platform is equidistant 12 branch appearance mouths of being provided with on the riffle sampler casing all around, can realize 1 minute 2, 1 minute 3, 1 minute 4, 1 minute 6, 1 minute 12 branch appearance form, and the base of riffle sampler casing is equipped with magnetic stirring device, spirit level and level control device.

2. The plankton splitter of claim 1, wherein when the magnetic stirring device is used, the rotor is first placed in the separator, and after the rotor is powered on, the stirring speed of the stirrer can be controlled by adjusting the magnetic force.

3. The plankton riffle according to claim 1, characterized in that the upper parts of the riffle housing and the separator are provided with handles.

4. The plankton riffle according to claim 1, wherein a liquid level scale mark is provided on the riffle housing, and the riffle housing and the separator are both made of transparent materials.

5. The plankton riffle according to claim 1, characterized in that each sample distributing opening is provided with a control valve.

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