A kind of automatic injection device of culture solution for biological petri dish

Abstract

The invention relates to the technical field of biological experimental equipment, and discloses an automatic culture liquid injection device for a biological culture dish, comprising a culture dish body and a culture dish cover. The inside of the culture dish body is provided with a accommodating cavity, and the inner wall of the accommodating cavity is fixed A traction spring is connected, the bottom of the traction spring is fixedly connected with an inner culture cavity, and the bottom of the inner culture cavity is fixedly connected with a first dielectric plate. The device for automatic injection of culture solution for biological culture dishes, along with the growth and development of biological objects in the inner culture chamber, the inner culture chamber gradually moves up under the drive of the traction spring, and when the culture solution decreases to a certain extent, the first positive electrode will move upward. The plate and the first negative plate are connected. At this time, the one-way liquid outlet valve is opened, and the electromagnet is energized with magnetic properties, so that the culture medium in the elastic liquid storage cavity is extruded from the extrusion nozzle until the feeding is completed, and the inner culture cavity is lowered again. It is highly automated and can realize quantitative addition without manual operation, which ensures the nutritional requirements in the petri dish.

Description

technical field [0001] The invention relates to the technical field of biological experiment equipment, in particular to a culture solution automatic injection device for biological culture dishes. Background technique [0002] A petri dish is a laboratory vessel used for microorganism or cell culture. It consists of a flat disc-shaped bottom and a cover. It is generally made of glass or plastic. It is suitable for laboratory inoculation, streaking, and separation of bacteria. It can be used for the cultivation of plant materials. When the biological petri dish is used, it is usually necessary to inject culture fluid into the petri dish as a nutrient base for the growth of biological materials or bacteria. [0003] The culture medium is an artificially prepared nutrient for the growth and maintenance of microorganisms, plants and animal tissues, and generally contains carbohydrates, nitrogenous substances, inorganic salts (including trace elements), vitamins and water, etc.,...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides an automatic injection device for culture solution used in biological culture dishes, which has the advantages of quantitative feeding and no manual operation, and solves the problem that in order to meet the needs of culture, it is generally through manual observation. , Manually replenish the nutrient solution, but this method is not only time-consuming and laborious, but also the manual operation is likely to cause omissions and affect the culture results

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