CN112820176A - Combined demonstrator for all four respiratory processes - Google Patents
Combined demonstrator for all four respiratory processes Download PDFInfo
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- CN112820176A CN112820176A CN201911117086.5A CN201911117086A CN112820176A CN 112820176 A CN112820176 A CN 112820176A CN 201911117086 A CN201911117086 A CN 201911117086A CN 112820176 A CN112820176 A CN 112820176A
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- demonstrator
- respiratory
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- gas exchange
- processes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
Abstract
The combined demonstrator for all four respiratory processes consists of a lung ventilation demonstrator, a gas exchange and blood circulation demonstrator and a power supply. The lung ventilation demonstrator is positioned on the front side of the respiratory all four-process combined demonstrator, the gas exchange and blood circulation demonstrator is positioned on the back side of the respiratory all four-process combined demonstrator, and the power supply is positioned on one side of the respiratory all four-process combined demonstrator. The beneficial effects are that: the structure is simple and reasonable, and the cost is low. The breathing apparatus is characterized in that all four processes are combined to be displayed in a demonstration instrument, a whole concept of the whole breathing process can be formed by students, the connection and the distinction of a circulating system and a breathing system can be deeply known, the cost and the time are greatly saved by one instrument for demonstrating the four processes, the burden of the students and teachers is relieved, the ventilation of the lungs, namely the ventilation of the lungs and the external gas exchange process, is independently placed on the other side of the breathing apparatus for demonstrating the four processes, the teachers do not need to additionally carry several teaching aids during classroom demonstration, the existing teaching aids can be intuitively demonstrated only by directly rotating the existing teaching aids, and the channel switching speed is ultra high.
Description
Technical Field
The invention relates to the field of teaching instruments, in particular to a breathing all four-process combined demonstration instrument.
Background
The whole process of respiration plays an important role in biological teaching in junior middle schools, one of the two most important knowledge points and the most difficult knowledge points in junior middle schools are connected in series, and the circulatory system and the respiratory system can be oppositely, uniformly and tightly connected, so the junior middle school biology preschool education edition teaching material arranges the two knowledge points in the tenth chapter and the fourth section and the fifth section of the teaching material for teaching, but the existing blood circulation demonstration instrument and the respiratory process demonstration instrument do not tightly connect the two knowledge points, can demonstrate the blood circulation system and the respiratory system in a single way, do not form a complete demonstration device, do not form an integral concept, easily enable students to generate thinking that the two knowledge points are not tightly connected, generate wrong understanding, and the existing new edition teaching material emphasizes the integral concept of forming the biological structure and function, so that the whole four processes of respiration are taught uniformly, the experimental device which forms the global overall concept-the whole process of breathing (including four parts of the whole process (ventilation of the lung, gas exchange in the alveoli, gas transportation in the blood and gas exchange in the tissues)) is even more incapable of demonstrating the four parts at the same time. Therefore, the relation and the difference between the circulation system and the respiratory system are compared, and the circulation system and the respiratory system are concentrated into a teaching aid for demonstration.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and designs a teaching instrument which can demonstrate the whole process of respiration (including four parts of the whole process (ventilation of lungs, gas exchange in alveoli, gas transportation in blood and gas exchange in tissues)) in one teaching aid.
In order to achieve the purpose, the invention adopts the technical scheme that:
the combined demonstrator for all four respiratory processes consists of a lung ventilation demonstrator, a gas exchange and blood circulation demonstrator and a power supply. The lung ventilation demonstrator is positioned on the front side of the respiratory all four-process combined demonstrator, the gas exchange and blood circulation demonstrator is positioned on the back side of the respiratory all four-process combined demonstrator, and the power supply is positioned on one side of the respiratory all four-process combined demonstrator.
Furthermore, the lung ventilation demonstrator is a lung ventilation demonstrator with a common cuboid structure and made of materials such as plastics, wood plates and the like.
Furthermore, the gas exchange and blood circulation demonstrator is a gas exchange and blood circulation demonstrator which is made of materials such as plastics and wood plates and has a common cuboid structure.
Furthermore, the lung ventilation demonstrator and the gas exchange and blood circulation demonstrator have rectangular structures with the same size, and can be arranged in the same rectangular frame by the front side and the back side of each rectangular frame.
Further, the power supply is a common voltage-stabilized power supply, and converts alternating current into direct current to respectively supply power to the ventilation demonstrator of the lung and the gas exchange and blood circulation demonstrator.
After adopting the technical scheme, compared with the prior art, the invention has the advantages that:
the breath four-process combined demonstration instrument designed by the invention has the advantages of simple and reasonable structure and low cost. The breathing apparatus is characterized in that all four processes are combined to be displayed in a demonstration instrument, a whole concept of the whole breathing process can be formed by students, the connection and the distinction of a circulating system and a breathing system can be deeply known, the cost and the time are greatly saved by one instrument for demonstrating the four processes, the burden of the students and teachers is relieved, the ventilation of the lungs, namely the ventilation of the lungs and the external gas exchange process, is independently placed on the other side of the breathing apparatus for demonstrating the four processes, the teachers do not need to additionally carry several teaching aids during classroom demonstration, the existing teaching aids can be intuitively demonstrated only by directly rotating the existing teaching aids, and the channel switching speed is ultra high.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of the drawing symbols: 1: a lung ventilation demonstrator; 2: a gas exchange and blood circulation demonstrator; 3: a power source.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings. The invention will be described in detail with reference to fig. 1, which is shown in fig. 1, and the breathing total four-process combined demonstration instrument is composed of a lung ventilation demonstration instrument 1, a gas exchange and blood circulation demonstration instrument 2 and a power supply 3, wherein the lung ventilation demonstration instrument 1 is positioned on the front side of the breathing total four-process combined demonstration instrument, the gas exchange and blood circulation demonstration instrument 2 is positioned on the back side of the breathing total four-process combined demonstration instrument, and the power supply 3 is positioned on one side of the breathing total four-process combined demonstration instrument.
When the demonstration instrument is used, the power supply 3 is connected with alternating current, then the switch of the lung ventilation demonstration instrument 1 is turned on, the front side of the respiratory all-four-process combined demonstration instrument, namely the lung ventilation demonstration instrument 1 is just opposite to audiences, the demonstration function of the lung ventilation demonstration instrument 1 is demonstrated, after the demonstration is finished, the switch of the gas exchange and blood circulation demonstration instrument 2 is turned on, then the lung ventilation demonstration instrument 1 is rotated, the back side of the respiratory all-four-process combined demonstration instrument, namely the gas exchange and blood circulation demonstration instrument 2 is just opposite to the audiences, then the demonstration function of the gas exchange and blood circulation demonstration instrument 2 is demonstrated, and after the demonstration functions of the two sides are finished, the switches of the lung ventilation demonstration instrument 1 and the gas exchange and blood circulation demonstration instrument 2 are turned off. The next cycle performs the above operations.
Claims (1)
1. The respiratory all four-process combined demonstration instrument comprises a pulmonary ventilation demonstration instrument, a gas exchange and blood circulation demonstration instrument and a power supply, wherein the pulmonary ventilation demonstration instrument is positioned on the front surface of the respiratory all four-process combined demonstration instrument, the gas exchange and blood circulation demonstration instrument is positioned on the back surface of the respiratory all four-process combined demonstration instrument, and the power supply is positioned on one side of the respiratory all four-process combined demonstration instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117086.5A CN112820176A (en) | 2019-11-15 | 2019-11-15 | Combined demonstrator for all four respiratory processes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911117086.5A CN112820176A (en) | 2019-11-15 | 2019-11-15 | Combined demonstrator for all four respiratory processes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112820176A true CN112820176A (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911117086.5A Pending CN112820176A (en) | 2019-11-15 | 2019-11-15 | Combined demonstrator for all four respiratory processes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112820176A (en) |
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2019
- 2019-11-15 CN CN201911117086.5A patent/CN112820176A/en active Pending
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