CN201629076U - Liquid buoyancy demonstrating device - Google Patents
Liquid buoyancy demonstrating device Download PDFInfo
- Publication number
- CN201629076U CN201629076U CN2010201492871U CN201020149287U CN201629076U CN 201629076 U CN201629076 U CN 201629076U CN 2010201492871 U CN2010201492871 U CN 2010201492871U CN 201020149287 U CN201020149287 U CN 201020149287U CN 201629076 U CN201629076 U CN 201629076U
- Authority
- CN
- China
- Prior art keywords
- water tank
- water
- buoyancy
- liquid
- demonstrating
- 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
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 59
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052742 iron Inorganic materials 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000012913 prioritisation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Instructional Devices (AREA)
Abstract
The utility model relates to a liquid buoyancy demonstrating device which comprises an iron stand, a water tank arranged on the iron stand, a supporting rod arranged inside the water tank, a pulley arranged at the lower part of the supporting rod, a liquid bottle and a spring scale arranged at the upper part of the iron stand, and a floater arranged inside the water tank and connected with the spring scale through a traction line. When the device is in use, the water is injected into the water tank while the water level is read according to the scale marks on the supporting rod; then the water is transferred from the water tank to the liquid bottle, the floater is put into the water tank and connected with the spring scale through the traction line, and the pipe clamp is opened to allow the water to flow into the water tank from the liquid bottle; when the water level of the water tank reaches the read value, the pipe clamp is closed, the value of the spring scale represents the buoyancy of the floater, the volume of the residual water in the liquid bottle is equal to that of the floater, and the gravity of the residual water in the liquid bottle is equal to the buoyancy of the floater. The liquid buoyancy demonstrating device has good demonstrating effect and can visually demonstrate buoyancy and allow the students to understand what causes buoyancy.
Description
Technical field
The utility model relates to a kind of teaching experimental provision, relates to the liquid buoyancy apparatus for demonstrating specifically.
Background technology
In the middle school physical curriculum teaching, buoyancy phenomenon is the key content of physics course, reason that liquid buoyancy produces and the factor that influence liquid buoyancy are the difficult point in imparting knowledge to students all the time, reason to the buoyancy generation, the teacher is not only beyond expression of words clear in teaching process, for the student, also be difficult to understand fully,, need the teaching of use apparatus for demonstrating that the generation of buoyancy is demonstrated usually for the ease of student's understanding.
Present employed buoyancy demonstration device just allows the student observe directly the existence of buoyancy, analyzes the reason that buoyancy produces by explanation then, can not do further demonstration intuitively, the demonstration weak effect to the reason of buoyancy generation and the size of buoyancy.
The utility model content
Problem to be solved in the utility model is at above problem, a kind of good demonstration effect is provided, can demonstrate intuitively buoyancy size, be easy to the liquid buoyancy apparatus for demonstrating that the student understands.
For addressing the above problem, the technical scheme that the utility model adopted is: the liquid buoyancy apparatus for demonstrating, comprise iron stand, it is characterized in that: described iron stand is provided with water tank, be provided with support bar in the described water tank, described support bar bottom is provided with pulley, and described iron stand top is provided with liquid holding bottle and spring balance, be provided with floating block in the described water tank, described floating block is connected with spring balance by draught line.
A kind of concrete prioritization scheme, described liquid holding bottle is provided with conduit, and the lower end of described conduit is positioned at water tank.
A kind of concrete prioritization scheme, described conduit is provided with pipe clamp.
A kind of concrete prioritization scheme, fixedly connected with the bottom of water tank in described support bar lower end, and the top of described support bar is provided with scale.
The utility model is taked above technical scheme, have the following advantages: during use, in water tank, add water, water is added to when a certain amount of, read numerical value by the scale on the support bar, then the water in the water tank is poured in the liquid holding bottle, floating block is put into water tank and be connected with spring balance, open pipe clamp, the water in the liquid holding bottle is flowed in the water tank by traction rope, when the water in the water tank reaches the numerical value of reading, pipe clamp is closed, and this moment, floating block floated in the water, and the numerical value that spring balance shows promptly is the size that floating block is subjected to buoyancy, the volume of remaining water is identical with the volume of floating block in the liquid holding bottle, and the gravity of remaining water equates with the buoyancy that floating block is subjected in the liquid holding bottle.This apparatus for demonstrating is simple in structure, and good demonstration effect can be demonstrated the size of buoyancy intuitively, is easy to the student produces reason to buoyancy understanding.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of liquid buoyancy apparatus for demonstrating among the utility model embodiment.
Among the figure:
The 1-iron stand; The 2-liquid holding bottle; The 3-spring balance; The 4-support bar; The 5-water tank; The 6-pulley; The 7-floating block; The 8-pipe clamp; The 9-conduit.
Embodiment
Embodiment: as shown in drawings, the liquid buoyancy apparatus for demonstrating, comprise iron stand 1, iron stand 1 is provided with water tank 5, be provided with support bar 4 in the water tank 5, fixedly connected with the bottom of water tank 5 in support bar 4 lower ends, the top of support bar 4 is provided with scale, and support bar 4 bottoms are provided with pulley 6, iron stand 1 top is provided with liquid holding bottle 2 and spring balance 3, liquid holding bottle 2 is provided with conduit 9, and conduit 9 is provided with pipe clamp 8, and the lower end of conduit 9 is positioned at water tank, be provided with floating block 7 in the water tank 5, floating block 7 is connected with spring balance 3 by traction rope, and traction rope one end is connected with floating block 7, and the other end passes pulley 6 and is connected with spring balance 3.
During use, in water tank 5, add water, water is added to when a certain amount of, read numerical value by the scale on the support bar 4, then the water in the water tank 5 is poured in the liquid holding bottle 2, floating block 7 is put into water tank 5 and be connected with spring balance 3 by traction rope, open pipe clamp 8, water in the liquid holding bottle 2 flows in the water tank 5 by conduit 9, when the water in the water tank 5 reaches the numerical value of reading, pipe clamp 8 is closed, this moment, floating block 7 floated in the water, the numerical value that spring balance 3 shows promptly is the size that floating block 7 is subjected to buoyancy, and the volume of remaining water is identical with the volume of floating block 7 in the liquid holding bottle 2, and the gravity of remaining water equates with the buoyancy that floating block 7 is subjected in the liquid holding bottle 2.
Can also spring balance 3 be mentioned and put down by hand, change the position of floating block 7 in water, observe the variation of spring balance 3 indication numerical value, thereby be appreciated that the buoyancy that floating block 7 is suffered and the relation of the position of floating block 7 in water.
This apparatus for demonstrating is simple in structure, good demonstration effect, and the size of demonstrating floating force is easy to the student to the understanding of buoyancy generating cause intuitively.
Claims (4)
1. liquid buoyancy apparatus for demonstrating, comprise iron stand (1), it is characterized in that: described iron stand (1) is provided with water tank (5), be provided with support bar (4) in the described water tank (5), described support bar (4) bottom is provided with pulley (6), described iron stand (1) top is provided with liquid holding bottle (2) and spring balance (3), is provided with floating block (7) in the described water tank (5), and described floating block (7) is connected with spring balance (3) by draught line.
2. liquid buoyancy apparatus for demonstrating as claimed in claim 1 is characterized in that: described liquid holding bottle (2) is provided with conduit (9), and the lower end of described conduit (9) is positioned at water tank.
3. liquid buoyancy apparatus for demonstrating as claimed in claim 2 is characterized in that: described conduit (9) is provided with pipe clamp (8).
4. liquid buoyancy apparatus for demonstrating as claimed in claim 1 is characterized in that: fixedly connected with the bottom of water tank (5) in described support bar (4) lower end, the top of described support bar (4) is provided with scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201492871U CN201629076U (en) | 2010-04-02 | 2010-04-02 | Liquid buoyancy demonstrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201492871U CN201629076U (en) | 2010-04-02 | 2010-04-02 | Liquid buoyancy demonstrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201629076U true CN201629076U (en) | 2010-11-10 |
Family
ID=43060474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201492871U Expired - Fee Related CN201629076U (en) | 2010-04-02 | 2010-04-02 | Liquid buoyancy demonstrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201629076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097846A (en) * | 2016-08-31 | 2016-11-09 | 朱泽德 | A kind of liquid buoyancy demonstrating device |
-
2010
- 2010-04-02 CN CN2010201492871U patent/CN201629076U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106097846A (en) * | 2016-08-31 | 2016-11-09 | 朱泽德 | A kind of liquid buoyancy demonstrating device |
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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: 20101110 Termination date: 20110402 |