CN200953206Y - Electrothermal cutting machine demonstrator - Google Patents
Electrothermal cutting machine demonstrator Download PDFInfo
- Publication number
- CN200953206Y CN200953206Y CN 200620011014 CN200620011014U CN200953206Y CN 200953206 Y CN200953206 Y CN 200953206Y CN 200620011014 CN200620011014 CN 200620011014 CN 200620011014 U CN200620011014 U CN 200620011014U CN 200953206 Y CN200953206 Y CN 200953206Y
- Authority
- CN
- China
- Prior art keywords
- transformer
- base
- cutting machine
- demonstrator
- cross bar
- 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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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
A demonstrator for electrothermal cutting machine used in teaching application is provided, which can enable students to feel the existence of thermal effect generated when current passes through a conductor. The demonstrator comprises a base, at one side of which is connected and fixed with a standing bar, and on the upper end of the standing bar is connected and fixed with a cross bar. The utility model comprises a transformer and a knife switch as well. Between the transformer and knife switch is connected with wires, and between wires are provided with heating elements; the upper end of the heating element is connected and fixed to the end of cross bar, and the lower end is connected to the bottom of the base. When the transformer is connected to the power supply, the heating element will generate heat, and cut out the object being pushed to the heating element. Therefore, students will be allowed to obviously feel the existence of heat generated by the current flowing through the conductor.
Description
Technical field
The utility model relates to a kind of instruments used for education, relates in particular to a kind of electrothermal cutting machine demonstration device.
Background technology
Now, the primary school nature textbook intermediary electric current that continued can make during by conductor conductor produce thermal effect, but does not have demonstration instrument, the thermal effect that conductor produced when the student can't experience electric current by conductor when study.
Summary of the invention
The purpose of this utility model provide a kind of can make the student experience electric current the time by conductor conductor can produce the electrothermal cutting machine demonstration device of thermal effect.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of electrothermal cutting machine demonstration device comprising base, is characterized in that: base one side is fixedly connected with vertical rod, and the vertical rod upper end is fixedly connected with cross bar; The utility model also includes transformer and knife switch, is connected with lead between transformer and the knife switch, is connected with heating wire between the lead, and the upper end of heating wire is fixedly connected on an end of cross bar, and the lower end of heating wire is fixedly connected on below the base.
Because the utility model is connected with heating wire between lead, heating wire can generate heat after the transformer energized, to be cut object push heating wire to this moment, and object just can be cut and hold, thereby make the student obviously feel the existence of the heat that conductor produced when electric current passed through conductor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
In the accompanying drawing: 1, cross bar; 2, heating wire; 3, base; 4, lead; 5, knife switch; 6, transformer; 7, vertical rod.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described:
A kind of electrothermal cutting machine demonstration device, as shown in Figure 1, comprising base 3, base 3 one sides are fixedly connected with vertical rod 7, and vertical rod 7 upper ends are fixedly connected with cross bar 1; The utility model also includes transformer 6 and knife switch 5, be connected with lead 4 between transformer 6 and the knife switch 5, be connected with heating wire 2 between the lead 4, the upper end of heating wire 2 is fixedly connected on an end of cross bar 1, and the lower end of heating wire 2 is fixedly connected on below the base 3.
Base of the present utility model, vertical rod, cross bar all adopt insulator to make, and heating wire is selected steel wire for use, and the thermal effect effect is obvious, power supply can directly link to each other with the household electricity source by common transformer, need not to use battery as power supply, both economical and practical, can reduce the pollution of battery again to environment.Also be connected with knife switch in lead of the present utility model, the switching circuit is easy to operate at any time.
Claims (1)
1, a kind of electrothermal cutting machine demonstration device comprising base (3), is characterized in that: base (3) one sides are fixedly connected with vertical rod (7), and vertical rod (7) upper end is fixedly connected with cross bar (1); The utility model also includes transformer (6) and knife switch (5), be connected with lead (4) between transformer (6) and the knife switch (5), be connected with heating wire (2) between the lead (4), the upper end of heating wire (2) is fixedly connected on an end of cross bar (1), and the lower end of heating wire (2) is fixedly connected on below the base (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620011014 CN200953206Y (en) | 2006-10-16 | 2006-10-16 | Electrothermal cutting machine demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620011014 CN200953206Y (en) | 2006-10-16 | 2006-10-16 | Electrothermal cutting machine demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953206Y true CN200953206Y (en) | 2007-09-26 |
Family
ID=38811508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620011014 Expired - Fee Related CN200953206Y (en) | 2006-10-16 | 2006-10-16 | Electrothermal cutting machine demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953206Y (en) |
-
2006
- 2006-10-16 CN CN 200620011014 patent/CN200953206Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |