CN203027935U - Novel detachable flat bottom test tube - Google Patents

Abstract

The utility model discloses a novel detachable flat-bottomed test tube, which comprises a test tube body composed of a bottom tube and a main tube. The bottom of the bottom tube is a plane, and the bottom tube and the main tube are connected by threads; The connection of the bottom pipe is set as an internal thread, and the connection of the bottom pipe is set as an external thread; the opening of the main pipe is provided with a pipe plug; the bottom pipe and the main pipe are made of transparent materials; the beneficial effects of the utility model: Practical, low production cost, easy to use, can realize the transfer of uncontaminated third instar larvae of Drosophila adhering to the inner wall of the test tube to a new medium, so that the third instar larvae of Drosophila can be effectively protected, thus in the new medium The uncontaminated Drosophila is cultivated in the culture medium as a mother to achieve the purpose of degerming and detoxifying.

Description

A new detachable flat-bottomed test tube

technical field

The utility model relates to a test tube, in particular to a novel detachable flat-bottomed test tube.

Background technique

In biological genetic experiments, fruit fly observation, hybridization, offspring statistics, chromosome preparation, original seed preservation, etc. must be cultivated. During the cultivation process, due to the action of microorganisms, the medium is often prone to mildew, while Moldy fruit flies can only be discarded, affecting the experimental effect and causing waste. This situation occurs during the preservation of the original species, and it will even affect the progress of the entire experiment. Therefore, it is necessary to observe the condition of the medium frequently during the experiment, and transfer the adult fruit flies to a new medium in time when a contamination tendency is found, which increases the workload of the experiment and is cumbersome to operate. Nevertheless, the transferred Drosophila adults will be more or less contaminated with bacteria or fungi due to their activities in the contaminated test tube, which will continue to affect the new medium and be contaminated. Sterilizing it will greatly increase the difficulty of experiment sterilization, which will inevitably affect the later experiments.

Utility model content

The technical problem to be solved by the utility model is to provide a novel detachable flat-bottomed test tube aiming at the deficiencies of the existing technical problems.

In order to achieve the above object, the measures taken by the utility model:

A new detachable flat-bottomed test tube, including a test tube body composed of a bottom tube and a main tube, the bottom of the bottom tube is a plane, and the bottom tube and the main tube are connected by threads;

The connection of the main pipe is set as an internal thread, and the connection of the bottom pipe is set as an external thread;

A pipe plug is provided at the opening of the main pipe;

The bottom pipe and the main pipe are made of transparent materials.

The utility model has the beneficial effects of practicality, low production cost and convenient use, and can realize the transfer of uncontaminated third-instar fruit fly larvae adhering to the inner wall of the test tube to a new culture medium. The third-instar larvae of Drosophila can be effectively protected, so that uncontaminated Drosophila can be cultivated as a mother in the new medium, and the purpose of detoxification can be achieved. At the same time, this new flat-bottomed tube can also be used in addition to transfer culture It is suitable for routine cultivation and is convenient for cleaning and disinfection of tubes.

Description of drawings

Fig. 1, the plane structural representation of the utility model.

Detailed ways

A new detachable flat-bottomed test tube, including a test tube body composed of a bottom tube 1 and a main tube 2, the bottom of the bottom tube 1 is a plane, and the bottom tube 1 and the main tube 2 are connected by threads; 2 is set as an internal thread, and the connection of the bottom pipe 1 is set as an external thread; the opening of the main pipe 2 is provided with a pipe plug 3; the bottom pipe 1 and the main pipe 2 are made of transparent materials.

When using the utility model, as long as one hand holds the bottom pipe 1 and the other hand holds the main pipe 2, according to the direction of the main pipe 2 being an internal thread and the bottom pipe 1 being an external thread, carefully tighten the two pipes to realize connection or disassembly. The bottom of the bottom tube 1 described above is a plane, which is convenient for the placement of the entire test tube body and is easy to use.

When transferring the third instar larvae of Drosophila adhering to the inner wall of the main tube 2 to a new medium, it is only necessary to remove the plug 3 on the main tube 2 first, dispose of the polluted fruit fly adults in the main tube 2, and then put the bottom Carefully unscrew the tube 1 and the main tube 2, and quickly tighten the tube 2 and another bottom tube 1 containing a new medium to complete the assembly of the new test tube and the replacement of the medium, so as to achieve sterilization and detoxification The effect is strong, the connection is firm, the production cost is low, and the use is safe, thereby realizing the purpose of the utility model.

Simple modifications and replacements by those skilled in the art are within the protection scope of the present utility model.

Claims (4)

1. A novel detachable flat-bottomed test tube, comprising a test tube body composed of a bottom tube (1) and a main pipe (2), characterized in that: the bottom of the bottom tube (1) is a plane, and the bottom tube (1) ) and the main pipe (2) are threaded. 2. A new type of detachable flat-bottomed test tube according to claim 1, characterized in that: the connection of the main pipe (2) is set as an internal thread, and the connection of the bottom pipe (1) is set as an external thread . 3. A new type of detachable flat-bottomed test tube according to claim 1, characterized in that: the opening of the main pipe (2) is provided with a plug (3). 4. A novel detachable flat-bottomed test tube according to claim 1, characterized in that: the bottom tube (1) and the main tube (2) are made of transparent materials.

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