Automatic liquid nitrogen storage tank

Abstract

The invention relates to an automatic liquid nitrogen storage tank. The automatic liquid nitrogen storage tank comprises a liquid nitrogen tank, a freezing storage mechanism and a lifting mechanism; atank port is formed in the top of the liquid nitrogen tank; the freezing storage mechanism comprises a plurality of freezing storage frames; the multiple freezing storage frames are evenly distributed in the liquid nitrogen tank with the center of the liquid nitrogen tank as a center of a circle, a plurality of placing plates are sequentially arranged on each freezing storage frame from top to bottom, cross-shaped placing grooves are correspondingly formed in the tops of the placing plates, a plurality of freeing storage boxes are correspondingly arranged in each cross-shaped placing groove in a cross-shaped distribution mode, and each freezing storage frame is connected with the liquid nitrogen tank through a first rotating mechanism; the lifting mechanism comprises a supporting frame; and a lifting plate is arranged on the supporting frame, the lifting plate is connected with the supporting frame through the lifting mechanism, and the bottom of the lifting plate is connected with the top of an installation plate through a second rotating mechanism. The automatic liquid nitrogen storage tank has the beneficial effects that the freezing storage boxes required by the liquid nitrogen tank can be accurately taken out, the degree of automation is high, the difficulty of manual operation is lowered, repeated freezing and thawing of samples is avoided, and the storage quality of thesamples is improved.

Description

technical field [0001] The invention relates to the technical field of biological sample storage devices, in particular to an automatic storage liquid nitrogen tank. Background technique [0002] Liquid nitrogen cryopreservation is one of the main methods for long-term preservation of biological cells, tissues, and organs. Liquid nitrogen comes from the air, and the main gas components contained in the air are oxygen and nitrogen. Among them, nitrogen accounts for about 78.09% of air, and liquid nitrogen is liquefied nitrogen. Liquid nitrogen tanks, commonly known as biological liquid nitrogen containers, can be used in medical treatment, biological research, university experiments, chromatography experiments, and epidemic prevention units. In medical and scientific research, it is mainly used as a storage liquid nitrogen container for long-term preservation of living biological materials such as embryos, stem cells, skin, internal organs, and vaccines. When biological mat...

AI Technical Summary

Problems solved by technology

The disadvantage of manual operation is that the operation is cumbersome and time-consuming; and due to the constraints of the cryopreservation rack, non-target cryopreservation boxes are often brought out when picking up the target cryopreservation box, which may cause the sample to freeze and thaw, which will reduce the quality of the sample and affect the follow-up scientific research experiment.

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