CN203355775U - Demonstration test-tube rack for biotic experiment teaching - Google Patents
Demonstration test-tube rack for biotic experiment teaching Download PDFInfo
- Publication number
- CN203355775U CN203355775U CN 201320438300 CN201320438300U CN203355775U CN 203355775 U CN203355775 U CN 203355775U CN 201320438300 CN201320438300 CN 201320438300 CN 201320438300 U CN201320438300 U CN 201320438300U CN 203355775 U CN203355775 U CN 203355775U
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- Prior art keywords
- demonstration
- experiment
- test tube
- test
- tube rack
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- Expired - Fee Related
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Abstract
A demonstration test-tube rack for biotic experiment teaching comprises a base (5), and 1-4 rows of test-tube placing holes (4), wherein a slide (3) is further arranged on each of the two sides of the base (5); an upright (2) is arranged inside each slide on each side in a matching manner; a background plate (1) is arranged between the two uprights (2). According to the utility model, the over-all structure is simple, and the operation is convenient; the test-tube experiment demonstration effect is clear and obvious, so that the subtle experiment effect can be better observed, and the comparison of the color variation in experiments can be observed more conveniently, therefore, the demonstration test-tube rack can be widely applied to various biochemistry experiment teaching demonstration.
Description
Technical field
The utility model relates to a kind of technical field of bioconversion medium teaching aid, is specifically related to a kind of Bioexperiment teaching with demonstrating rack for test tube.
Background technology
At present, especially during experimental teaching, often need to carry out lecture experiment in bioconversion medium, especially carry out the experiment of some test tube classes, while utilizing test tube to do experiment, because teacher's handgrip part is improper, be easy to block the observation of student to experimental phenomena and experimental implementation, affect teaching efficiency; The teacher, when the demonstration of hand-held test tube, is not easy to instruction of papil and observes keypoint part, also is not easy to add in time medicine or order is added medicine, the experiment of some heat release teacher's health of also may burning.While carrying out many group test tube contrast experiments, generally adopt rack for test tube to carry out, but be difficult for observing owing to lacking suitable contrast background.
The utility model content
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of and be easy to the observation experiment effect, has been easy to carry out contrast experiment's demonstration rack for test tube for the Bioexperiment teaching.
The purpose of this utility model realizes by following technological means: a kind of demonstration rack for test tube for the Bioexperiment teaching, include base and 1-4 row's test tube putting hole, the both sides of described base also respectively are provided with a slideway, the supporting column that is provided with in the slideway of described each side, be fixedly installed background board between two columns.
Also be provided with rule on described column.
Compared with prior art the utlity model has following obvious advantage: the utility model overall structure is simple, easy to operate, clear obviously by test tube experimental demonstration effect, observe preferably trickle experiment effect, the more convenient change color of observing the contrast experiment, can be widely used in using in various experimental teaching of biochemistry demonstrations.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-background board, 2-column, 3-slideway, 4-test tube putting hole, 5-base.
The specific embodiment
Below in conjunction with accompanying drawing explanation and the specific embodiment, the utility model is described in further detail:
A kind of Bioexperiment teaching is with demonstrating rack for test tube as shown in Figure 1, include base 5 and 1-4 row's test tube putting hole 4, the both sides of described base 5 also respectively are provided with a slideway 3, in the slideway 3 of described each side supporting being provided with between 2, two columns 2 of column be fixedly installed background board 1.Arrange like this, the utility model can be observed the change color in the experiment of contrast test tube preferably by the background board 1 arranged, and improves resolution ratio.
Also be provided with rule on described column 2.Arrange like this, can better to experiment, carry out quantitative analysis by the rule arranged, can observe preferably the Volume Changes of test tube inside.
In a word, the utility model provides a kind of and has been easy to the observation experiment effect, has been easy to carry out contrast experiment's demonstration rack for test tube for the Bioexperiment teaching.The above; it is only a part of specific embodiment of the present utility model; protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement, within all should being encompassed in protection domain of the present utility model.
Claims (2)
1. a Bioexperiment teaching is with demonstrating rack for test tube, include base (5) and 1-4 row's test tube putting hole (4), it is characterized in that: the both sides of described base (5) also respectively are provided with a slideway (3), the supporting column (2) that is provided with in the slideway of described each side (3), be fixedly installed background board (1) between two columns (2).
2. a kind of Bioexperiment teaching according to claim 1 is with demonstrating rack for test tube, and it is characterized in that: described column also is provided with rule on (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438300 CN203355775U (en) | 2013-07-14 | 2013-07-14 | Demonstration test-tube rack for biotic experiment teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320438300 CN203355775U (en) | 2013-07-14 | 2013-07-14 | Demonstration test-tube rack for biotic experiment teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203355775U true CN203355775U (en) | 2013-12-25 |
Family
ID=49803599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320438300 Expired - Fee Related CN203355775U (en) | 2013-07-14 | 2013-07-14 | Demonstration test-tube rack for biotic experiment teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203355775U (en) |
-
2013
- 2013-07-14 CN CN 201320438300 patent/CN203355775U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140714 |
|
| EXPY | Termination of patent right or utility model |