CN201126687Y - Teching appliances for demonstrating dilation and shrinking of thoracic cage - Google Patents
Teching appliances for demonstrating dilation and shrinking of thoracic cage Download PDFInfo
- Publication number
- CN201126687Y CN201126687Y CNU2007200165194U CN200720016519U CN201126687Y CN 201126687 Y CN201126687 Y CN 201126687Y CN U2007200165194 U CNU2007200165194 U CN U2007200165194U CN 200720016519 U CN200720016519 U CN 200720016519U CN 201126687 Y CN201126687 Y CN 201126687Y
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- CN
- China
- Prior art keywords
- glass tube
- bottle
- bottle body
- demonstrating
- shrinking
- Prior art date
- 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.)
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Abstract
A didactical equipment for demonstrating the enlarging and reducing of the chest, the characteristic is that the equipment has a bottle body with two opened ends. The upper end opening of the bottle body is arranged with a sealed plug; a downward furcate three-way glass tube traverses the hole of the sealed plug; the upward end is exposed outside the bottle body by the glass tube; the downward furcate two-end glass tube is arranged in the bottle body; the ports of the downward furcate two-end glass tube are both arranged with balloons; the lower opening of the bottle body is also arranged with a film with rubber material. The utility model is simple structured, strong operated which can intuitively demonstrate the process of enlarging and reducing of the chest. The utility model is helpful for the students to understand the relation between the shrinking and diastole, size of the chest and the capacity of the lung.
Description
Technical field
The utility model relates to a kind of teaching aid, particularly relates to a kind of demonstration because the contraction of diaphram and diastole cause the teaching aid that thorax enlarges and dwindles, and is to having replenishing of biology teaching in junior middle school apparatus kind now, belonging to the school supply and stationery category.
Background technology
At present, middle and primary schools' teaching aid kind is a lot, but function singlenesses all just designs at the content that needs separately to show.In junior middle school's bioconversion medium, have only diaphragm is arranged in the mammalian body cavity, mammiferous respiratory movement is because the contraction of diaphram and diastole cause thorax expansion and dwindle, make the student grasp above-mentioned knowledge by experiment, it is very important content in the bioconversion medium, yet be again one of the important of biological class and the course of beyonding one's depth, student and teacher press for teaching aid targetedly, but there is not teaching aid intuitively in the existing teaching, be difficult to make student's thorax that undergoes to enlarge and the proof procedure that dwindles, thereby bring certain difficulty to teaching, even have influence on student performance and learning interest.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, improves by research, provides a kind of thorax of demonstrating and enlarges and the teaching aid that dwindles.This novel teaching aid is simple in structure, workable, can demonstrate thorax intuitively and enlarge and the process of dwindling, the relation of the volume of contraction that helps helping the student to understand diaphram and diastole and thorax size, lung.
The technical scheme that the utility model provides is: this demonstration thorax enlarges and the teaching aid that dwindles, be characterized in the bottle of an open at both ends, the upper end of bottle is uncovered to be provided with sealing-plug with holes, pass a threeway glass tube in the hole of sealing-plug to lower bifurcation, an end glass tube that wherein makes progress is exposed at outside the bottle, glass tube is located in the bottle to the two ends of lower bifurcation, on the port of the two ends of lower bifurcation glass tube, all be with balloon, also be provided with the film of rubber mass on the lower end of described bottle is uncovered.
In this teaching aid, bottle simulation thorax, an end glass tube that the makes progress simulation tracheae of threeway glass tube, the threeway glass tube to the two ends of lower bifurcation glass tube simulation bronchus, balloon on the glass tube port of the two ends of lower bifurcation is simulated two leaf lungs, the membrane simulation diaphram of the rubber mass on the bottle lower end is uncovered.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, workable, and can demonstrate thorax intuitively and enlarge and the process of dwindling, the relation of the volume of contraction that helps helping the student to understand diaphram and diastole and thorax size, lung.
Description of drawings
Figure is the structural representation that the utility model provides embodiment.
Embodiment
As shown in the figure, this demonstration thorax enlarges and the teaching aid that dwindles, the bottle 1 that an open at both ends is arranged, the uncovered sealing-plug with holes 6 that is provided with in the upper end of bottle 1, pass a threeway glass tube to lower bifurcation in the hole of sealing-plug 6, an end glass tube 2 that wherein makes progress is exposed at outside the bottle 1, is located in the bottle to the two ends of lower bifurcation glass tube 5, on the port of the two ends of lower bifurcation glass tube 5, all be with balloon 3, also be provided with the film 4 of rubber mass on the lower end of described bottle 1 is uncovered.
During demonstration, with the subordinate film 4 of rubber mass that draws, the contraction of expression diaphram, be that thorax enlarges, simultaneously visible balloon 3 sticks out, and shows that lung (balloon 3) volume increases, ambient atmos enters lung (balloon 3) through tracheae (glass tube 2), bronchus (glass tube 5), finishes breathing process; The film 4 of the drop-down rubber mass of handle unclamps, the diastole of expression diaphram, and promptly thorax dwindles, simultaneously visible balloon 3 is flat, show that lung (balloon 3) volume dwindles, gas is excreted through tracheae (glass tube 2), bronchus (glass tube 5) by lung (balloon 3), finishes exhalation process.
Claims (1)
1. demonstrate the teaching aid that thorax enlarges and dwindles for one kind, it is characterized in that having the bottle of an open at both ends, the upper end of bottle is uncovered to be provided with sealing-plug with holes, pass a threeway glass tube in the hole of sealing-plug to lower bifurcation, an end glass tube that wherein makes progress is exposed at outside the bottle, glass tube is located in the bottle to the two ends of lower bifurcation, all is with balloon on the port of the two ends of lower bifurcation glass tube, also is provided with the film of rubber mass on the lower end of described bottle is uncovered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200165194U CN201126687Y (en) | 2007-12-10 | 2007-12-10 | Teching appliances for demonstrating dilation and shrinking of thoracic cage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200165194U CN201126687Y (en) | 2007-12-10 | 2007-12-10 | Teching appliances for demonstrating dilation and shrinking of thoracic cage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126687Y true CN201126687Y (en) | 2008-10-01 |
Family
ID=40000154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200165194U Expired - Fee Related CN201126687Y (en) | 2007-12-10 | 2007-12-10 | Teching appliances for demonstrating dilation and shrinking of thoracic cage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126687Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217635A (en) * | 2014-07-04 | 2014-12-17 | 祝相伟 | Human chest movement simulating test |
-
2007
- 2007-12-10 CN CNU2007200165194U patent/CN201126687Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217635A (en) * | 2014-07-04 | 2014-12-17 | 祝相伟 | Human chest movement simulating test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |