CN205645043U - Buoyancy demonstration teaching aid - Google Patents
Buoyancy demonstration teaching aid Download PDFInfo
- Publication number
- CN205645043U CN205645043U CN201620130204.1U CN201620130204U CN205645043U CN 205645043 U CN205645043 U CN 205645043U CN 201620130204 U CN201620130204 U CN 201620130204U CN 205645043 U CN205645043 U CN 205645043U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- barrel
- teaching aid
- base station
- demonstration teaching
- 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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model provides a buoyancy demonstration teaching aid, includes the base station, has first barrel, second barrel, plat form scale and support on the base station, and wherein first barrel lies in the plat form scale, and the second barrel is arranged in first barrel, with the first barrel end altogether, the height that highly is lighter than first barrel of second barrel, first barrel is provided with the volume scale outward, and the support is connected to form by two montants and a horizontal pole, and the symmetry is opened on the lateral wall at the middle part of first barrel has the via hole, the horizontal pole passes connect on the second barrel behind the via hole, the utility model discloses can be used to demonstrate the buoyancy formula.
Description
Technical field
This utility model belongs to teaching aid technical field, particularly to a kind of buoyancy demonstration teaching aid.
Background technology
Physics teaching usually needs to demonstrate some theorems, the most also lacks this type of instrument, be mostly by broadcasting
The mode putting video or commentary is shown to student, the most intuitively.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of buoyancy to drill
Display teaching aid, can be used for demonstrating floating force formula.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of buoyancy demonstration teaching aid, including base station, has the first cylinder, the second cylinder, platform balance on base station
And support, wherein the first cylinder is positioned on platform balance, and the second cylinder is positioned in the first cylinder, with the first cylinder
Not being total to the end, the height of the second cylinder is less than the height of the first cylinder, and the first cylinder is outside equipped with volume markings,
Support is connected by two montants and a cross bar and forms, and on the sidewall at the middle part of the first cylinder, symmetry had
Hole, described cross bar is connected on the second cylinder after described via.
The floor space of described first cylinder is more than 5 times of the second cylinder floor space.
Compared with prior art, this utility model can be used for demonstrating floating force formula.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Detailed description of the invention
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings with embodiment.
As it is shown in figure 1, a kind of buoyancy demonstration teaching aid, including base station 5, base station 5 has the first cylinder 1,
Second cylinder 2, platform balance 3 and support 4, wherein the first cylinder 1 is positioned on platform balance 3, the second cylinder 2
Being positioned in the first cylinder 1, the overhead height of the second cylinder 2 is less than the overhead height of the first cylinder 1, the
One cylinder 1 is outside equipped with volume markings, and support 4 is connected by two montants and a cross bar and forms, two
The lower end of montant is both connected on base station 5, and upper end connects the two ends of cross bar respectively.In first cylinder 1
On the sidewall in portion, symmetry has via, and described cross bar is connected on the second cylinder 2 after described via,
That is, utilize cross bar that the second cylinder 2 is provoked its weight of support.Wherein, the floor space of the first cylinder 1 is
It it is well more than 5 times of the second cylinder 2 floor space.
Use process of the present utility model is:
In the second cylinder 2, load liquid, such as water, then the object that can float is put into second
In body 2, the water of spilling is flowed in the first cylinder 1, owing to the second cylinder 2 is supported by support 4,
Platform balance 3 surveyed for the first cylinder 1 and the weight of liquid therein, before and after being flowed into by contrast liquid
Weight, i.e. can get the weight of liquid.The volume of liquid is read again by the scale outside the first cylinder 1,
Formula G=ρ gV=mg can be verified.
Claims (2)
1. a buoyancy demonstration teaching aid, it is characterised in that include base station (5), has on base station (5)
First cylinder (1), the second cylinder (2), platform balance (3) and support (4), wherein the first cylinder (1)
Being positioned on platform balance (3), the second cylinder (2) is positioned in the first cylinder (1), with the first cylinder (1)
Not being total to the end, the height of the second cylinder (2) is less than the height of the first cylinder (1), and the first cylinder (1) is outward
Being provided with volume markings, support (4) is connected by two montants and a cross bar and forms, the first cylinder (1)
Middle part sidewall on symmetry have via, described cross bar is through being connected to the second cylinder (2) after described via
On.
Buoyancy demonstration teaching aid the most according to claim 1, it is characterised in that described first cylinder (1)
More than 5 times that floor space is the second cylinder (2) floor space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620130204.1U CN205645043U (en) | 2016-02-19 | 2016-02-19 | Buoyancy demonstration teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620130204.1U CN205645043U (en) | 2016-02-19 | 2016-02-19 | Buoyancy demonstration teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645043U true CN205645043U (en) | 2016-10-12 |
Family
ID=57076283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620130204.1U Expired - Fee Related CN205645043U (en) | 2016-02-19 | 2016-02-19 | Buoyancy demonstration teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645043U (en) |
-
2016
- 2016-02-19 CN CN201620130204.1U patent/CN205645043U/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: 20161012 Termination date: 20170219 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |