CN204166764U - For the apparatus for demonstrating of liquid pressure teaching - Google Patents
For the apparatus for demonstrating of liquid pressure teaching Download PDFInfo
- Publication number
- CN204166764U CN204166764U CN201420693125.2U CN201420693125U CN204166764U CN 204166764 U CN204166764 U CN 204166764U CN 201420693125 U CN201420693125 U CN 201420693125U CN 204166764 U CN204166764 U CN 204166764U
- Authority
- CN
- China
- Prior art keywords
- container
- fixed pulley
- connecting strand
- water
- plane
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to physical teaching aid field, in order to make up the deficiency of existing teaching aid, the utility model proposes a kind of teaching aid: for the apparatus for demonstrating of liquid pressure teaching, comprise the container taking up water, it is characterized in that: the inside of container, and be provided with a fixed pulley at container bottom, fixed pulley rotating shaft place straight line parallel is in the plane at container bottoms place, fixed pulley rotational plane is perpendicular to container bottoms place plane, a connecting strand be made up of flexible material is through fixed pulley, and connecting strand one end connects a balloon, balloon is submerged in water, the other end of connecting strand is positioned at above the water surface.The utility model structure is simple, benefits to student's inquiry activity.
Description
Technical field
The utility model belongs to physical teaching aid field, in particular for the teaching aid field of pressure.
Background technology
The existing teaching aid about pressure is very abundant, but, still there is the experiment being not easy to demonstrate and study.Such as how simply to change the degree of depth of liquid? how to show atmospheric pressure and liquid depth to the impact of pressure? these problems are all the problems being worth solving.
Utility model content
In order to make up the deficiency of existing teaching aid, the utility model proposes a kind of teaching aid for pressure teaching, the utility model is such: for the apparatus for demonstrating of liquid pressure teaching, comprise the container taking up water, it is characterized in that: the inside of container, and be provided with a fixed pulley at container bottom, fixed pulley rotating shaft place straight line parallel is in the plane at container bottoms place, fixed pulley rotational plane is perpendicular to container bottoms place plane, a connecting strand be made up of flexible material is through fixed pulley, and connecting strand one end connects a balloon, balloon is submerged in water, the other end of connecting strand is positioned at above the water surface.
The utility model can also like this:
A kind of teaching aid for demonstrating pressure, comprise the container taking up water, it is characterized in that: the inside of container, and be provided with a fixed pulley at container bottom, fixed pulley rotating shaft place straight line parallel is in the plane at container bottoms place, fixed pulley rotational plane is perpendicular to container bottoms place plane, a connecting strand be made up of flexible material is through fixed pulley, and connecting strand one end connects a balloon, balloon is submerged in water, the other end of connecting strand is positioned at above the water surface, also comprise the lid for closed container, and lid is provided with a charging connector for inflating to container, and lid is being also fixedly connected with one for hanging the hook of connecting strand towards the side in container.
The utility model structure is simple, for teaching, can promote teaching efficiency, be conducive to student and carry out inquiry activity.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
In figure: 1-container, 2-water, 3-fixed pulley, 4-connecting strand, 5-balloon, 6-lid, 7-charging connector, 8-links up with.
Embodiment
Embodiment one
See accompanying drawing 1, being structural representation of the present utility model, is front elevation.For the apparatus for demonstrating of liquid pressure teaching, comprise the container 1 taking up water 2, it is characterized in that: the inside of container 1, and bottom container 1, being provided with a fixed pulley 3, fixed pulley 3 rotating shaft place straight line parallel is in the plane at place, container 1 bottom surface, and fixed pulley 3 rotational plane is perpendicular to place, container 1 bottom surface plane, a connecting strand be made up of flexible material 4 is through fixed pulley 3, and connecting strand 4 one end connects a balloon 5, balloon 5 is submerged in water 2, and the other end of connecting strand 4 is positioned at above the water surface.
Using method: hand-held connecting strand 4 is positioned at that one end above the water surface, pulls connecting strand 4, changes the degree of depth that balloon 5 is residing in water 2, can see the change of balloon 5 volume, thus pressure change is described.
Further:
Embodiment two
See accompanying drawing 2, it is structural representation of the present utility model, it is intended to performance: a kind of teaching aid for demonstrating pressure, comprise the container 1 taking up water 2, it is characterized in that: the inside of container 1, and bottom container 1, be provided with a fixed pulley 3, fixed pulley 3 rotating shaft place straight line parallel is in the plane at place, container 1 bottom surface, fixed pulley 3 rotational plane is perpendicular to place, container 1 bottom surface plane, a connecting strand be made up of flexible material 4 is through fixed pulley 3, and connecting strand 4 one end connects a balloon 5, balloon 5 is submerged in water 2, and the other end of connecting strand 4 is positioned at above the water surface.Also comprise the lid 6 for closed container 1, and lid 6 is provided with a charging connector 7 for inflating to container 1, and lid 6 is being also fixedly connected with one for hanging the hook 8 of connecting strand towards the side in container 1.
Using method: that one end that connecting strand 4 is positioned at above the water surface is lain in hook 8, with lid 6 closed container 1, utilize charging connector 7 to container inflation, can find that balloon 5 volume changes, this change is the coefficient result of air pressure and liquid pressure.
Charging connector 7 belongs to prior art: bicycle tyre uses this technology, doughnut also to use this technology.
The utility model structure is simple, benefits to student's inquiry activity.
Claims (1)
1. for the apparatus for demonstrating of liquid pressure teaching, comprise the container taking up water, it is characterized in that: the inside of container, and be provided with a fixed pulley at container bottom, fixed pulley rotating shaft place straight line parallel is in the plane at container bottoms place, fixed pulley rotational plane is perpendicular to container bottoms place plane, a connecting strand be made up of flexible material is through fixed pulley, and connecting strand one end connects a balloon, balloon is submerged in water, the other end of connecting strand is positioned at above the water surface, also comprise the lid for closed container, and lid is provided with a charging connector for inflating to container, and lid is being also fixedly connected with one for hanging the hook of connecting strand towards the side in container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693125.2U CN204166764U (en) | 2014-11-19 | 2014-11-19 | For the apparatus for demonstrating of liquid pressure teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420693125.2U CN204166764U (en) | 2014-11-19 | 2014-11-19 | For the apparatus for demonstrating of liquid pressure teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166764U true CN204166764U (en) | 2015-02-18 |
Family
ID=52540430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420693125.2U Expired - Fee Related CN204166764U (en) | 2014-11-19 | 2014-11-19 | For the apparatus for demonstrating of liquid pressure teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166764U (en) |
-
2014
- 2014-11-19 CN CN201420693125.2U patent/CN204166764U/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: 20150218 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |