CN202258083U - Seed respiration demonstrator - Google Patents
Seed respiration demonstrator Download PDFInfo
- Publication number
- CN202258083U CN202258083U CN2011203683416U CN201120368341U CN202258083U CN 202258083 U CN202258083 U CN 202258083U CN 2011203683416 U CN2011203683416 U CN 2011203683416U CN 201120368341 U CN201120368341 U CN 201120368341U CN 202258083 U CN202258083 U CN 202258083U
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- CN
- China
- Prior art keywords
- chamber
- plate
- circular holes
- upper plate
- arranged inside
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- Expired - Fee Related
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Abstract
The utility model relates to a simple teaching aid for a seed respiration rapid experiment, which belongs to the technical field of the teaching aid, and is characterized in that: an upper plate (4), a side plate (5), a front plate (6), a rear plate (9) and a soleplate (10) are connected with one another to form a one-piece box, wherein a vertical separation plate (13) is fixed on the center of the one-piece box to divide an inner cavity into a left chamber (12) and a right chamber (14), the upper plate (4) is provided with two circular holes, the left chamber and the right chamber are communicated with outside respectively through the two circular holes, and a rubber plug (3) can be plugged into each circular hole. Each rubber plug (3) is provided with two small circular holes, two slender glass tubes (7) with scales are respectively plugged inside the two small circular holes, a latex tube (2) is respectively sleeved on the end of one of the two glass tubes, the latex tube is clamped by a clip (1), and a red floater (8) is arranged inside the other one of the two glass tubes. A small water trough (1) is respectively arranged inside the left chamber and the right chamber and is used for holding calcium hydroxide solution. Germinated seeds are arranged inside the left chamber (12), boiled seeds are arranged inside the right chamber (14), the rubber plug (3) is plugged into the circular hole of the upper plate (4) and is sealed by Vaseline, and whether the seeds are breathed or not can be judged according to the movement of the red floater (8) inside the glass tube (7). The simple teaching aid is particularly suitable for being equipped in rural primary schools, kindergartens and the like.
Description
Technical field
The utility model relates to a kind of teaching aid, is suitable for a kind of simple and easy teaching aid of seed respiration quick experiment in the Biology Teaching of middle school specifically, belongs to the teaching aid technical field.
Background technology
In teaching, measure seed respiration a plurality of wide-necked bottles commonly used, the student takes the classroom inconvenience from the laboratory, and glass apparatus is many, accidentally can hinder and set about, and has potential safety hazard, and inconvenient.
Summary of the invention
It is a kind of simple, compact that the purpose of the utility model is to provide, rationally, and repeatedly used seed respiration demonstration device.
The utility model is made up of rectangular whole box and vertical clapboard.Whole box is made up of upper plate (4), side plate (5), header board (6), back plate (9) and base plate (10).Then vertical clapboard (13) is fixed on the middle part of the whole box of rectangle, the inner chamber of whole box is divided into left chamber (12) and right ventricle (14).The hole of 2 circles of system is respectively one of left chamber on the upper plate of rectangle box, one of right ventricle.Size is as the criterion can put a rubbery stopper (3) into.Get 2 circular holes with card punch again on the rubbery stopper (3); Insert the glass tube (7) of the identical band scale of two thicknesses; The end of a band scale glass tube puts emulsion tube (2) therein; Clamp emulsion tube (2) with clip (1), in another band scale glass tube, a red buoy (8) is set.In left chamber (12) and right ventricle (14) tank (11) of a small beaker appearance is set respectively again, is used to hold aqua calcis.
The utility model selects for use transparent plastic or other watertight material to process.
The utility model is simple in structure, visual in image, reasonable, with low cost, and can eliminate safe hidden trouble.
Description of drawings
Fig. 1 is the structural representation of the utility model
Among the figure: 1. clip, 2. emulsion tube, 3. rubbery stopper, 4. upper plate, 5. side plate, 6. header board, 7. band scale glass tube, 8. red buoy, 9. back plate, 10. base plate, 11. tanks, left chambers 12., 13. vertical clapboards, 14. right ventricles.
Embodiment
Below in conjunction with accompanying drawing the utility model is done further elaboration
Upper plate (4), side plate (5), header board (6), back plate (9) and base plate (10) are connected to form whole rectangle box mutually; Then vertical clapboard (13) is fixed on the middle part of rectangle box body, the inner chamber of rectangle box is divided into left chamber (12) and right ventricle (14).
The hole of 2 circles of system is respectively in left chamber (12) one on the upper plate of rectangle box, (14) one of right ventricles.Size is as the criterion can put a rubbery stopper (3) into.Rubbery stopper is got two circular holes with card punch on (3) again, is as the criterion can put band scale glass tube (7) into.
Put into the seed of sprouting in left chamber (12), the seed that boiled is put in (14) in the right ventricle.The tank of two Room (11) all holds aqua calcis.
To put into the hole of rubbery stopper (3) with scale glass tube (7), again rubbery stopper (3) inserted in the circular hole of upper plate (4) jam-pack.Slit between rubbery stopper (3) and upper plate circular hole, the band scale glass tube (7) is sealed with vaseline, prevent gas leakage.
The carbon dioxide of emitting because of left chamber (12) interior seed respiration is absorbed by calcium hydroxide, and the bottle internal gas pressure descends, and just can see red buoy (8) after several minutes and slowly move down.The right ventricle puts into the seed that boiled in (14), and other condition is identical with left chamber (12).Beginning is absorbed by calcium hydroxide because of original carbon dioxide in right ventricle (14), and right ventricle (14) internal gas pressure slightly descends, and the red buoy (8) in the band scale glass tube (7) also can move down, but slack soon.The contrast of chamber, the left and right sides proves that the seed of living has respiration.
Claims (4)
1. seed respiration demonstration device; It is characterized in that adopting upper plate (4), side plate (5), header board (6), back plate (9) and base plate (10) to form a whole box; A vertical clapboard (13) is set in whole box, the inner chamber of whole box is divided into left chamber (12) and right ventricle (14).
2. seed respiration demonstration device according to claim 1 is characterized in that two circular holes are arranged on upper plate (4), can insert rubbery stopper (3).
3. seed respiration demonstration device according to claim 1; It is characterized in that on rubbery stopper (3), being shaped on two circular holes; Can insert two band scale glass tubes (7); The end of a glass tube puts emulsion tube (2) therein, clamps with clip (1) on the emulsion tube, and a red buoy (8) is set in another glass tube.
4. seed respiration demonstration device according to claim 1 is characterized in that being provided with respectively in chamber, the left and right sides two little tanks (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203683416U CN202258083U (en) | 2011-09-29 | 2011-09-29 | Seed respiration demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203683416U CN202258083U (en) | 2011-09-29 | 2011-09-29 | Seed respiration demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202258083U true CN202258083U (en) | 2012-05-30 |
Family
ID=46119293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203683416U Expired - Fee Related CN202258083U (en) | 2011-09-29 | 2011-09-29 | Seed respiration demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202258083U (en) |
-
2011
- 2011-09-29 CN CN2011203683416U patent/CN202258083U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120929 |