CN204911552U - Simple and convenient liquid -transfering device - Google Patents

Abstract

The utility model discloses a simple pipetting device, which comprises an injection tube, and a piston that can move back and forth is arranged in the injection tube. The inlet and outlet of the injection tube are connected with a sampling thin tube. There is a filter membrane in between, and by installing a filter membrane at the outlet of the syringe, it can effectively prevent the sample from settling or residue from entering when sucking the sample, ensure the experimental effect, and also use the protection of the detection instrument; at the same time, the sampling tube used is a soft plastic tube , the length can be adjusted, you can take samples directly regardless of the caliber and depth of the sample container, saving time and improving the test efficiency. .

Description

A simple pipetting device

technical field

The utility model patent relates to a simple pipetting device, which belongs to the technical field of experimental equipment transformation.

Background technique

At present, when people perform indoor analysis, they often need to transfer the sample solution to different containers, and different test equipment have different calibers and depths; when transferring the sample solution, we usually use pipettes or pipette guns, However, it is often impossible to take a good sample because the caliber of the container containing the sample is too small or the depth is too large; or the sample can be taken but because the sample has sediment or residue in the early treatment, it is taken into the next test analysis However, such a sample liquid transfer process is too time-consuming and the effect is not ideal for test analysis, so the existing pipetting device is still not perfect .

Contents of the invention

The purpose of this utility model is: to provide a kind of simple structure, convenient operation, not only can absorb sample conveniently but also be unlikely to inhale a kind of simple and convenient pipetting device of sample residue, to overcome the deficiencies in the prior art.

The utility model is realized in the following way: a simple pipetting device, comprising a syringe, a piston that can move back and forth is arranged in the syringe, the inlet and outlet of the syringe are connected with a sampling capillary, and the sampling capillary and the capillary A filter membrane is set between the inlet and outlet.

The filter membrane is nylon fine mesh or gauze.

There are graduations on the injection tube.

Due to the adoption of the above-mentioned technical scheme, compared with the prior art, the utility model can effectively prevent the sedimentation of the sample or the entry of the residue when the sample is sucked by installing a filter membrane at the outlet of the syringe, so as to ensure the experimental effect and also utilize the protection of the detection instrument; at the same time The thin sampling tube used is a soft plastic tube, the length of which can be adjusted, and the sample can be directly sampled regardless of the caliber and depth of the sample container, saving time and improving the test efficiency. The utility model has the advantages of strong practicability and easy operation. It can be popularized and used in scientific research units such as schools and research institutes.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Explanation of reference signs: 1-injection tube, 2-piston, 3-filter membrane, 4-sampling thin tube, 5-pipe inlet and outlet, 6-scale.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments, but not as a limitation of the utility model.

Embodiment of the present utility model: a simple liquid pipetting device, comprising a syringe 1, a piston 2 that can move back and forth is arranged in the syringe 1, and the pipe inlet and outlet 5 of the syringe 1 is connected with a sampling capillary 4, A filter membrane 3 is arranged between the sampling thin tube 4 and the tube inlet and outlet 5 .

The filter membrane 3 is nylon fine mesh or gauze.

A scale 6 is provided on the injection tube 1 .

In the utility model, the injection tube is a plastic product, the filter membrane is nylon fine mesh or gauze, which is a common material in the laboratory, and the sampling thin tube is a soft plastic thin tube.

The filter membrane of the utility model can be disassembled and cleaned, which is very convenient. The length of the sampling capillary can be adjusted. For a container with a small diameter and a large depth, the capillary has obvious advantages over a pipette or a pipette gun. The utility model has the advantages of simple structure, wide selection of materials, convenient operation, time saving and labor saving, and can be popularized and used in scientific research units such as schools and research institutes.

Claims (2)

1. an easy liquid-transfering device, comprise injection-tube (1), it is characterized in that: in injection-tube (1), be provided with the piston (2) that can move forward and backward, the pipe of described injection-tube (1) is imported and exported (5) and is connected with sampling tubule (4), import and export between (5) in sampling tubule (4) and pipe and be provided with filter membrane (3), described filter membrane (3) is nylon fine-structure mesh or gauze.

2. easy liquid-transfering device according to claim 1, is characterized in that: on injection-tube (1), be provided with scale (6).