CN202126791U - Transpiration demonstrating device - Google Patents
Transpiration demonstrating device Download PDFInfo
- Publication number
- CN202126791U CN202126791U CN2011201070361U CN201120107036U CN202126791U CN 202126791 U CN202126791 U CN 202126791U CN 2011201070361 U CN2011201070361 U CN 2011201070361U CN 201120107036 U CN201120107036 U CN 201120107036U CN 202126791 U CN202126791 U CN 202126791U
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- CN
- China
- Prior art keywords
- transpiration
- tube
- glass tube
- scales
- demonstrating device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a transpiration demonstrating device for biology teaching, which comprises a glass tube with scales (3) and a main tube (7), an auxiliary tube (8) is arranged at the bottom end of the main tube, and the glass tube with scales is connected with the auxiliary tube of the main tube through a latex tube (4). A rubber plug (6) is arranged in the upper end opening of the main tube, and the plug is provided with a small hole for enabling a branch for experiment to be inserted in. A red float (2) is arranged in the glass tube with scales (3), scales are carved on the outside of the glass tube, and a rubber cap (1) for preventing moisture from evaporating is arranged on the glass tube. The transpiration demonstrating device is easy to operate, obvious in effect of the transpiration, capable of accurately measuring transpiration rate of leaves of the tested branch and low in manufacturing cost, and even ordinary schools can be provided with the transpiration demonstrating device for biology teaching.
Description
Technical field
The utility model relates to a kind of teaching aid, is used for a kind of transpiration apparatus for demonstrating of Biology Teaching specifically.
Background technology
In the plant teaching, Water Physiology belongs to very important a part of content.When lecturing transpiration, the student is difficult to understand this abstract concept.For school with good conditionsi, can sharpen understanding through multimedia teaching, but multimedia teaching exists demonstration speed fast, the student does not have the shortcoming of participation, and for rural school, only with teacher's explanation, effect is often undesirable.Have a relevant patented technology, " the transpiration demonstration device of leaf " (95236225.2) on the home market at present.This fabrication techniques is simple, and is directly perceived.Be in smoke cande, to produce flue gas, represent water vapor with flue gas through the material of being fuming.But should technology not use fresh plant branch, be the simulation transpiration, rather than real transpiration.
Summary of the invention
The purpose of the utility model be to provide a kind of simple to operate, the demonstration time short, a kind of transpiration apparatus for demonstrating of observing easily.This apparatus for demonstrating can help the explanation transpiration process of teacher's image, and teaching efficiency is better.
The purpose of the utility model realizes through technological means once: a kind of transpiration apparatus for demonstrating includes the person in charge of band scale glass tube and circular transparent material.There is an arm bottom of being responsible for, will be connected with the scale glass tube and the person in charge's arm with emulsion tube.
The port that the utility model is responsible for is inserted a rubber stopper, and with card punch first circular aperture, size is as the criterion can put little plant branch on the stopper.
The rubber Capsule of the first appearance of a dropper glue is buckled in described band scale glass tube upper end.
Said band scale glass tube inside also is provided with red buoy.
On the described band scale glass tube scale is set.
Compared with prior art the utlity model has following tangible advantage: simple in structure, with low cost, transpiration effect obviously and can observe the transpiration of real plant leaf blade.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure, 1. Capsule, 2. buoy, 3. band scale glass tube, 4. emulsion tube, 5. seedling, 6. rubbery stopper 7. is responsible for, the arm of 8. being responsible for, 9. support.
Embodiment
Accompanying drawings and embodiment are done further detailed description to the utility model;
As shown in Figure 1, there is an arm (8) person in charge's bottom, through emulsion tube (4) itself and band scale glass tube (3) is coupled together.
Said band scale glass tube (3) inside is provided with red buoy (2).Such setting can make the position that liquid level descends in the band scale glass tube observe more easily.
Said band scale glass tube (3) is provided with scale.Such setting can quantize comparison to the speed that liquid level in the band scale glass tube descends, and has increased the science and the preciseness of experiment.
During use, earlier demonstration device is fixed on the support, adds suitable tap water respectively in the band scale glass tube and the person in charge; A Capsule is buckled in band scale glass tube upper end; The branch of one band leaf is inserted in the hole of rubber stopper, seal with vaseline, the rubber stopper jam-pack of band branch is suitable for reading in being responsible for.Like this, moisture just through branch from the blade face transpiration go out, can observe the minimizing of the water yield from band scale glass tube.Supply the blade area on the experiment branch to survey, so just can more correctly convert draws the transpiration rate of unit leaf area.
Claims (2)
1. a transpiration apparatus for demonstrating comprises band scale glass tube (3) and is responsible for (7), it is characterized in that will linking together with the scale glass tube and the person in charge's arm (8) through emulsion tube (4), and the buoy (2) of a redness is arranged in the band scale glass tube.
2. a kind of transpiration apparatus for demonstrating according to claim 1, it is characterized in that: there is an arm the said person in charge's bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201070361U CN202126791U (en) | 2011-04-13 | 2011-04-13 | Transpiration demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201070361U CN202126791U (en) | 2011-04-13 | 2011-04-13 | Transpiration demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126791U true CN202126791U (en) | 2012-01-25 |
Family
ID=45489857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201070361U Expired - Fee Related CN202126791U (en) | 2011-04-13 | 2011-04-13 | Transpiration demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944492A (en) * | 2012-11-28 | 2013-02-27 | 浙江大学 | Method and device for detection of plant water absorption and water consumption on basis of communicating vessel way |
| CN103456227A (en) * | 2012-05-31 | 2013-12-18 | 飞学金 | Electric diagram for translocation |
-
2011
- 2011-04-13 CN CN2011201070361U patent/CN202126791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456227A (en) * | 2012-05-31 | 2013-12-18 | 飞学金 | Electric diagram for translocation |
| CN102944492A (en) * | 2012-11-28 | 2013-02-27 | 浙江大学 | Method and device for detection of plant water absorption and water consumption on basis of communicating vessel way |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20120413 |