CN220443875U

CN220443875U - Liquid nitrogen environment test tube placement equipment

Info

Publication number: CN220443875U
Application number: CN202321434406.1U
Authority: CN
Inventors: 颜波
Original assignee: Hefei Cunenya Electronic Technology Co ltd
Current assignee: Hefei Cunenya Electronic Technology Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2024-02-06
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses liquid nitrogen environment test tube placement equipment, which relates to the field of test tube placement devices and comprises an outer box body and an inner box body positioned in the outer box body, wherein the top of the inner box body is fixedly arranged at the top of an inner cavity of the outer box body; the top of the outer box body is also provided with a test tube groove which extends into the inner box body; the inner part of the outer box body is vacuumized, and the inner part of the inner box body is filled with liquid nitrogen to cool the test tube tank. According to the utility model, the outer box body, the inner box body and the test tube groove are arranged, a vacuum environment is arranged between the outer box body and the inner box body, and the inner box body is filled with liquid nitrogen to keep a low-temperature environment. The vacuum environment keeps warm to interior box, isolated air conditioning, avoids interior box and external exchange heat, and owing to the vacuum environment can not transfer heat between interior box and the outer box moreover, the temperature of outer box keeps unanimous with the external world, can avoid the condition that the outer box that leads to because liquid nitrogen appears condensing frosting, the use of being convenient for to the box and take.

Description

Liquid nitrogen environment test tube placement equipment

Technical Field

The utility model relates to the field of test tube placement devices, in particular to test tube placement equipment in a liquid nitrogen environment.

Background

When microorganisms are treated (e.g., various biological materials of human body: cells, blood, biomacromolecules, etc.), a low-temperature environment is required, and the temperature is below-80 ℃. When the biological sample is preserved, the biological sample is placed in an ultralow temperature refrigerator at-80 ℃ in the middle preservation period; when the biological sample is stored for a medium and long time, the biological sample is stored in a liquid nitrogen gas-phase box or a tank or a cryogenic refrigerator at-136 ℃; during long term storage, the biological sample is placed in a liquid nitrogen tank or container at-196 degrees celsius.

However, in order to maintain the activity of the biological sample at the drilling station and to prevent the biological sample from being contaminated, it is necessary to provide a low-temperature environment for sampling during the drilling analysis of the biological sample. The current common method is to place the sample tube in liquid nitrogen for sampling, and the liquid nitrogen provides a low-temperature environment. In actual operation, liquid nitrogen is often led into the box body, the sample test tube is placed in the box body for sampling, but because the low temperature of the liquid nitrogen is directly transmitted to the box body, namely the box body is in a low temperature state, the outer wall of the box body can be subjected to the condition of water-cooling condensation frost of air, and the liquid nitrogen is attached to the outer wall of the box body, so that the outer wall of the box body is relatively smooth, and the taking of the box body is affected.

Disclosure of Invention

The utility model aims to provide liquid nitrogen environment test tube placement equipment for solving the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the liquid nitrogen environment test tube placement device comprises an outer box body and an inner box body positioned in the outer box body, wherein the top of the inner box body is fixedly arranged at the top of an inner cavity of the outer box body;

the top of the outer box body is also provided with a test tube groove which extends into the inner box body;

the inner part of the outer box body is vacuumized, and the inner part of the inner box body is filled with liquid nitrogen to cool the test tube tank.

Preferably, the upper end face of the outer box body is provided with a groove, and the test tube groove is positioned in the groove.

Preferably, an extraction opening is fixedly arranged at one side of the outer box body.

Preferably, a pipeline is fixedly arranged on one side of the inner box body and used for filling liquid nitrogen into the inner box body.

Preferably, one end of the pipeline, which is far away from the inner box body, extends out of the outer box body and is positioned outside the outer box body.

Preferably, the test tube well is provided in plurality.

Preferably, a placing groove with a cuboid structure is further formed in the groove.

Preferably, the test tube slot has a cylindrical structure with an opening at the upper end.

Preferably, the top edge of the inner box body is fixedly provided with a connecting strip, and the connecting strip is fixedly connected with the top of the inner cavity of the outer box body.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the outer box body, the inner box body and the test tube groove are arranged, a vacuum environment is arranged between the outer box body and the inner box body, and the inner box body is filled with liquid nitrogen to keep a low-temperature environment. The vacuum environment keeps the temperature of the inner box body, isolates cold air and avoids heat exchange between the inner box body and the outside.

And because the heat cannot be transferred between the inner box body and the outer box body in a vacuum environment, the temperature of the outer box body is kept consistent with the outside, the situation of condensation frosting of the outer box body caused by liquid nitrogen can be avoided, and the use and the taking of the box body are facilitated.

Drawings

FIG. 1 is a diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

fig. 3 is a practical cross-sectional view.

In the figure: 1. an outer case; 2. an inner case; 3. a pipe; 4. a test tube groove; 41. a connecting strip; 5. a cover plate; 6. a groove; 7. and an extraction opening.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to the drawings, the present embodiment provides a test tube placement device in a liquid nitrogen environment, which includes an outer case 1, and a cover plate 5 is fixedly covered on the upper end of the outer case 1, as shown in fig. 1 and 2. The internally mounted of outer box 1 has interior box 2, and the top fixed mounting of interior box 2 has connecting strip 41, and the upper end fixed mounting of connecting strip 41 is at outer box 1 inner chamber top, leaves the space between the apron 5 of the upper end of interior box 2 and outer box 1, can reduce the heat transfer between interior box 2 and the outer box 1. The space between the inner box body 2 and the outer box body 1 is in a vacuum state, so that the inner box body 2 is insulated, and heat transfer between the inner box body 2 and the outside through gas is avoided.

In addition, there is a space between the inner case 2 and the cover 5, that is, the inner case 2 is in a vacuum environment, and because the contact part between the top of the inner case 2 and the cover 5 of the outer case 1 is less, the heat transfer is negligible, so the heat preservation effect of the inner case 2 is better, as shown in fig. 3.

An extraction opening 7 is arranged at one side of the outer box body 1 and is used for extracting the gas in the outer box body 1.

The cover plate 5 is also provided with a groove 6, 5 test tube grooves 4 are formed in the groove 6, the test tube grooves 4 are of a cylindrical structure with an opening at the upper end, and the test tube grooves 4 extend into the inner box body 2, as shown in fig. 2 and 3. The test tube groove 4 is used for placing a test tube. When the test tube is arranged in the test tube groove 4, the bottom of the test tube is positioned in the low-temperature environment formed by the inner box body 2, and the low-temperature environment is kept for the sample in the test tube.

The groove 6 is also provided with a placing groove with a cuboid structure, and the test tube can be placed in the placing groove with the cuboid structure in an inclined manner, so that the test tube main body is located in a low-temperature environment as much as possible.

One side of the inner box body 2 is fixedly provided with a pipeline 3, one end of the pipeline 3, which is far away from the inner box body 2, extends out of the outer box body 1 and is positioned outside the outer box body 1, the pipeline 3 is used for filling liquid nitrogen into the inner box body 2, and the liquid nitrogen enables the inner box body 2 to keep a low-temperature environment, so that the test tube groove 4 is in a low-temperature environment. And the vacuum layer between the inner box body 2 and the outer box body 1 keeps the temperature of the inner box body 2. Meanwhile, due to the effect of vacuum temperature, the outer side of the outer box body 1 is kept consistent with the outer temperature, and the situation of condensation and frosting on the outer box body 1 can be avoided.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a liquid nitrogen environment test tube placement equipment which characterized in that: the novel multifunctional box comprises an outer box body (1) and an inner box body (2) positioned in the outer box body (1), wherein the top of the inner box body (2) is fixedly arranged at the top of an inner cavity of the outer box body (1);

the top of the outer box body (1) is also provided with a test tube groove (4), and the test tube groove (4) extends into the inner box body (2);

the inside of the outer box body (1) is vacuumized, and the inside of the inner box body (2) is filled with liquid nitrogen to cool the test tube groove (4).

2. A liquid nitrogen ambient test tube placement apparatus as defined in claim 1, wherein: the upper end face of the outer box body (1) is provided with a groove (6), and the test tube groove (4) is positioned in the groove (6).

3. A liquid nitrogen ambient test tube placement apparatus as defined in claim 1, wherein: an extraction opening (7) is fixedly arranged on one side of the outer box body (1).

4. A liquid nitrogen ambient test tube placement apparatus as defined in claim 1, wherein: one side of the inner box body (2) is fixedly provided with a pipeline (3) for filling liquid nitrogen into the inner box body (2).

5. The liquid nitrogen ambient test tube placement apparatus of claim 4, wherein: one end of the pipeline (3) far away from the inner box body (2) extends out of the outer box body (1) and is positioned outside the outer box body (1).

6. The liquid nitrogen ambient test tube placement apparatus of claim 4, wherein: the test tube grooves (4) are formed in a plurality of mode.

7. A liquid nitrogen ambient test tube placement apparatus as defined in claim 2, wherein: and a placing groove with a cuboid structure is also formed in the groove (6).

8. A liquid nitrogen ambient test tube placement apparatus as defined in claim 1, wherein: the test tube groove (4) is of a cylindrical structure with an opening at the upper end.

9. A liquid nitrogen ambient test tube placement apparatus as defined in claim 1, wherein: the top edge of the inner box body (2) is fixedly provided with a connecting strip (41), and the connecting strip (41) is fixedly connected with the top of the inner cavity of the outer box body (1).