CN206075643U - Fluid pressure and buoyancy demonstration teaching aid - Google Patents
Fluid pressure and buoyancy demonstration teaching aid Download PDFInfo
- Publication number
- CN206075643U CN206075643U CN201620466504.7U CN201620466504U CN206075643U CN 206075643 U CN206075643 U CN 206075643U CN 201620466504 U CN201620466504 U CN 201620466504U CN 206075643 U CN206075643 U CN 206075643U
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- CN
- China
- Prior art keywords
- venting cavity
- teaching aid
- fluid pressure
- demonstration teaching
- cavity
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Abstract
The utility model is related to Physical Experiment teaching aid, particularly a kind of fluid pressure and buoyancy demonstration teaching aid.Including the container for being loaded with liquid, the venting cavity being arranged in the liquid in container, venting cavity is communicated in outside liquid level by wireway, cylindrical cavity structure of the venting cavity for both ends open, venting cavity two ends outer edge is fixed with elastic membrane, container and venting cavity are penetrating visual structure, an annular seal space for being opened on its outer surface is provided with venting cavity, at the opening of annular seal space, sealing-plug is provided with.The utility model lacks in solving the problems, such as the physics teaching that prior art is present to fluid pressure and buoyancy intuitively demonstration teaching aid, with relation that can be between ocular demonstration liquid press machine buoyancy, the advantages of demonstrating effect is directly perceived.
Description
Technical field
The utility model is related to Physical Experiment teaching aid, particularly a kind of fluid pressure and buoyancy demonstration teaching aid.
Background technology
In physics teaching in secondary school, buoyancy, the calculating of fluid pressure and instruction are more abstract for student, straight due to lacking
The demonstrating model or teaching aid of sight, the key element being related in the calculation of pressure born for object in buoyancy calculations and liquid by student lack
Weary perceptual knowledge, can allow student more intuitively, fast to understand that above-mentioned abstract physical concept and computing formula are not only
Raw learning tasks, and be also that teacher rather pays close attention to and is devoted to the improved direction place in teaching methods.
The content of the invention
The utility model provides a kind of demonstration teaching aid for being capable of ocular demonstration fluid pressure and buoyancy.
Overall technical architecture of the present utility model is：
Fluid pressure and buoyancy demonstration teaching aid, including be loaded with liquid container, be arranged at it is logical in the liquid in container
Air cavity, venting cavity are communicated in outside liquid level by wireway, cylindrical cavity structure of the venting cavity for both ends open, outside venting cavity two ends
Edge is fixed with elastic membrane, and container and venting cavity are penetrating visual structure, be provided with one and be opened on the close of its outer surface in venting cavity
Envelope chamber, is provided with sealing-plug at the opening of annular seal space.
It can easily be shown that elastic membrane can adopt the material with preferable pliability and elasticity to make, wherein excellent
The material of choosing is quality of rubber materials.
Concrete technical scheme of the present utility model also has：
Preferably to demonstrate the relation between object buoyancy in a liquid and self gravitation, preferred technical scheme is,
Mass is provided with described annular seal space.
More accurately to demonstrate above-mentioned technical proposal, the technical implementation way being more highly preferred to is that described mass is selected
Use counterweight.
Sink in the liquid observing effect that born pressure gradually increases with venting cavity preferably to embody elastic membrane,
Preferred technical scheme is that described venting cavity side wall is provided with graduation mark.The indent that can so pass through to observe elastic membrane is straight
See the size for knowing from experience its proof pressure.
For ease of manufacturing and facilitating implementation the sealing between sealing-plug and annular seal space, preferred technical scheme is, described
Venting cavity adopts cuboid or cube structure.
Preferably to embody the equilibrium relation between elastic membrane pressure at both sides, preferred technical scheme is, described sealing
Venting cavity is separated into mutual disconnected two independent chambers by chamber, and wireway is connected with two chambers respectively.Can so lead to
Wireway is crossed to two independent within the chamber inflations or is evacuated, observe the change of the chamber internal dielectric membrane indent in different pressures
For the sealing being better achieved between venting cavity and sealing-plug, preferred technical scheme is, described sealing-plug with
Venting cavity side wall is assembled using thread seal.It is more highly preferred to and it is readily apparent that can be set using the joint portion both which
Put ring structure to guarantee the reliability of its sealing structure.
The motion action such as rotated to sealing-plug for ease of user, pushed or pulled up, preferred technical scheme is, institute
The sealing outer surface stated is provided with handle.
The utility model obtain technological progress be：
1st, the utility model easily and intuitively can be passed through using the structure design of venting cavity, annular seal space and elastic membrane
The indent change of elastic membrane under the different liquid levels of observation understands the relation that pressure is increased with depth and gradually increased, while can lead to
The easy buoyancy born to which of rising and the relation between buoyancy and pressure for crossing liquid level in container is demonstrated and is calculated.
2nd, the structure design of annular seal space and mass, conveniently and intuitively can demonstrate between object sole mass and buoyancy
Equilibrium relation.
3rd, venting cavity is separated into into two independent chambers the structure design together with blast pipe, Ke Yifang using annular seal space
Just the pressure adjusted in two chambers is changed with the indent for observing elastic membrane, to demonstrate the pass of medium pressure at both sides balance
System.
4th, the structure design of sealing-plug, has been effectively ensured annular seal space and has been hedged off from the outer world, and is easy to mass to be positioned over dry
In environment.
Description of the drawings
Fig. 1 is use state schematic diagram of the present utility model.
Reference in accompanying drawing is as follows：
1st, container；2nd, venting cavity；3rd, annular seal space；4th, sealing-plug；5th, wireway；6th, mass；7th, elastic membrane；8th, scale
Line.
Specific embodiment
Accompanying drawing gives embodiment of the present utility model, makees further to embodiment of the present utility model below in conjunction with accompanying drawing
Description, but should not be construed as the content recorded with claim to restriction of the present utility model, protection domain of the present utility model
It is defined, it is any to replace according to the equivalent technical elements made by specification, all without departing from protection domain of the present utility model.
The overall technology of the present embodiment is conceived as shown, including being loaded with the container 1 of liquid, be arranged in container 1
Liquid in venting cavity 2, venting cavity 2 is communicated in outside liquid level by wireway 5, cylindrical cavity of the venting cavity 2 for both ends open
Structure, 2 two ends outer edge of venting cavity are fixed with elastic membrane 7, and container 1 and venting cavity 2 are penetrating visual structure, are set in venting cavity 2
There is an annular seal space 3 for being opened on its outer surface, at the opening of annular seal space 3, be provided with sealing-plug 4.
Elastic membrane adopts quality of rubber materials.
Mass 6 is provided with described annular seal space 3, mass 6 selects counterweight.
Described 2 side wall of venting cavity is provided with graduation mark 8.
Venting cavity 2 adopts cuboid or cube structure.
Sealing-plug 4 is assembled using thread seal with 2 side wall of venting cavity.
Described 4 outer surface of sealing-plug is provided with handle.
Claims (8)
1. fluid pressure and buoyancy demonstration teaching aid, it is characterised in that including being loaded with the container (1) of liquid, be arranged at container (1)
Venting cavity (2) in interior liquid, venting cavity (2) are communicated in outside liquid level by wireway (5), and venting cavity (2) is both ends open
Cylindrical cavity structure, venting cavity (2) two ends outer edge is fixed with elastic membrane (7), container (1) and venting cavity (2) for it is penetrating can
Depending on an annular seal space (3) for being opened on its outer surface being provided with structure, venting cavity (2), be provided with sealing-plug at the opening of annular seal space (3)
(4)。
2. fluid pressure according to claim 1 and buoyancy demonstration teaching aid, it is characterised in that sets in described annular seal space (3)
There is mass (6).
3. fluid pressure according to claim 2 and buoyancy demonstration teaching aid, it is characterised in that described mass (6) is selected
Counterweight.
4. fluid pressure according to claim 1 and buoyancy demonstration teaching aid, it is characterised in that described venting cavity (2) side wall
It is provided with graduation mark (8).
5. fluid pressure according to claim 1 and buoyancy demonstration teaching aid, it is characterised in that described venting cavity (2) is adopted
Cuboid or cube structure.
6. fluid pressure according to claim 1 and buoyancy demonstration teaching aid, it is characterised in that described annular seal space (3) will be logical
Air cavity (2) is separated into mutual disconnected two independent chambers, and wireway (5) is connected with two chambers respectively.
7. fluid pressure according to claim 1 and buoyancy demonstration teaching aid, it is characterised in that described sealing-plug (4) with it is logical
Air cavity (2) side wall is assembled using thread seal.
8. the fluid pressure and buoyancy demonstration teaching aid according to any one of claim 1 or 7, it is characterised in that described is close
Blocking (4) outer surface is provided with handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466504.7U CN206075643U (en) | 2016-05-21 | 2016-05-21 | Fluid pressure and buoyancy demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620466504.7U CN206075643U (en) | 2016-05-21 | 2016-05-21 | Fluid pressure and buoyancy demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206075643U true CN206075643U (en) | 2017-04-05 |
Family
ID=58421308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620466504.7U Expired - Fee Related CN206075643U (en) | 2016-05-21 | 2016-05-21 | Fluid pressure and buoyancy demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206075643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112270876A (en) * | 2020-11-16 | 2021-01-26 | 山东交通学院 | Buoyancy demonstration teaching aid and using method thereof |
-
2016
- 2016-05-21 CN CN201620466504.7U patent/CN206075643U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112270876A (en) * | 2020-11-16 | 2021-01-26 | 山东交通学院 | Buoyancy demonstration teaching aid and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20180521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |