CN204480561U - A kind of teaching aid for demonstrating solution conductivity - Google Patents
A kind of teaching aid for demonstrating solution conductivity Download PDFInfo
- Publication number
- CN204480561U CN204480561U CN201520153000.5U CN201520153000U CN204480561U CN 204480561 U CN204480561 U CN 204480561U CN 201520153000 U CN201520153000 U CN 201520153000U CN 204480561 U CN204480561 U CN 204480561U
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- CN
- China
- Prior art keywords
- power supply
- reometer
- teaching aid
- slide rheostat
- bulb
- 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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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a kind of teaching aid for demonstrating solution conductivity, it comprises panel, the bottom of panel is provided with base, panel is provided with power supply, bulb, slide rheostat, reometer and single pole multiple throw, power supply and bulb are contacted, bulb is connected with slide rheostat, slide rheostat is connected with reometer, reometer is connected with single pole multiple throw, base is provided with multiple hopper, hopper is provided with detachable lid, lid is provided with two carbon-points, a carbon-point is connected with power supply by wire, another carbon-point is connected with single pole multiple throw by wire.Disclosed in the utility model, a kind of teaching aid for demonstrating solution conductivity has following beneficial effect: demonstration scope is large, adds reometer and slide rheostat, can demonstrate the conduction of weak electrolyte solution.
Description
Technical field
The utility model belongs to teaching demonstration field, relates to a kind of teaching aid, is specifically related to a kind of teaching aid for demonstrating solution conductivity.
Background technology
Demonstration teaching aid at present about solution conductivity is a lot, useful miniature bulb luminescence demonstration, useful lumination of light emitting diode demonstration.But when solution is weak electrolyte time, no matter whether adopt amplifying circuit, all there is following problem: because strength of current is more weak, the bright-dark degree be difficult to by directly observing bulb judges that electric current is strong and weak.
Utility model content
Goal of the invention: the utility model makes improvement for above-mentioned prior art Problems existing, namely the utility model discloses a kind of teaching aid for demonstrating solution conductivity.
Technical scheme: a kind of teaching aid for demonstrating solution conductivity, comprise panel, the bottom of panel is provided with base, described panel is provided with power supply, bulb, slide rheostat, reometer and single pole multiple throw, described power supply and described bulb are contacted, described bulb is connected with described slide rheostat, described slide rheostat is connected with described reometer, described reometer is connected with described single pole multiple throw, described base is provided with multiple hopper, hopper is provided with detachable lid, described lid is provided with two carbon-points, a carbon-point is connected with described power supply by wire, another carbon-point is connected with described single pole multiple throw by wire.Carbon-point gos deep into hopper inside.
A kind of preferred version as the teaching aid for demonstrating solution conductivity a kind of in the utility model: described power supply is direct current 6V power supply.
Beneficial effect: disclosed in the utility model, a kind of teaching aid for demonstrating solution conductivity has following beneficial effect:
Demonstration scope is large---and add reometer and slide rheostat, the conduction of weak electrolyte solution can be demonstrated.
Accompanying drawing explanation
The structural representation of Fig. 1 a kind of teaching aid tool for demonstrating solution conductivity disclosed in the utility model.
Embodiment:
Below embodiment of the present utility model is described in detail.
As shown in Figure 1, a kind of teaching aid for demonstrating solution conductivity, comprise panel, the bottom of panel is provided with base, panel is provided with power supply, bulb, slide rheostat, reometer and single pole multiple throw, power supply and bulb are contacted, bulb is connected with slide rheostat, slide rheostat is connected with reometer, and reometer is connected with single pole multiple throw, and base is provided with multiple hopper, hopper is provided with detachable lid, lid is provided with two carbon-points, and a carbon-point is connected with power supply by wire, and another carbon-point is connected with single pole multiple throw by wire.Carbon-point gos deep into hopper inside.
In the present embodiment, power supply is direct current 6V power supply.
Above embodiment of the present utility model is elaborated.But the utility model is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from the utility model aim.
Claims (2)
1. one kind for demonstrating the teaching aid of solution conductivity, comprise panel, it is characterized in that, the bottom of panel is provided with base, described panel is provided with power supply, bulb, slide rheostat, reometer and single pole multiple throw, described power supply and described bulb are contacted, described bulb is connected with described slide rheostat, described slide rheostat is connected with described reometer, described reometer is connected with described single pole multiple throw, described base is provided with multiple hopper, hopper is provided with detachable lid, described lid is provided with two carbon-points, a carbon-point is connected with described power supply by wire, another carbon-point is connected with described single pole multiple throw by wire.
2. a kind of teaching aid for demonstrating solution conductivity as claimed in claim 1, it is characterized in that, described power supply is direct current 6V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520153000.5U CN204480561U (en) | 2015-03-17 | 2015-03-17 | A kind of teaching aid for demonstrating solution conductivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520153000.5U CN204480561U (en) | 2015-03-17 | 2015-03-17 | A kind of teaching aid for demonstrating solution conductivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204480561U true CN204480561U (en) | 2015-07-15 |
Family
ID=53636339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520153000.5U Expired - Fee Related CN204480561U (en) | 2015-03-17 | 2015-03-17 | A kind of teaching aid for demonstrating solution conductivity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204480561U (en) |
-
2015
- 2015-03-17 CN CN201520153000.5U patent/CN204480561U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160317 |