CN205384800U - Small -size electroscope - Google Patents
Small -size electroscope Download PDFInfo
- Publication number
- CN205384800U CN205384800U CN201521088726.1U CN201521088726U CN205384800U CN 205384800 U CN205384800 U CN 205384800U CN 201521088726 U CN201521088726 U CN 201521088726U CN 205384800 U CN205384800 U CN 205384800U
- Authority
- CN
- China
- Prior art keywords
- small
- electroscope
- base
- rotating shaft
- sized
- 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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Abstract
The utility model provides a small -size electroscope. It is including testing torch, axle center, pivot, base and test bar, wherein: testing the torch and being equipped with the axle center for long and thin cylindrical plastic stick, its middle part, the axle center is the cylinder shape, and its bottom surface center department is equipped with a shaft hole, and the pivot is a vertical axis, and its diameter slightly is lighter than the internal diameter in shaft hole for back among the shaft hole is inserted in the pivot, test the torch can be on the horizontal plane free rotation, the base is cylindrical structure, and the pivot lower extreme is fixed in the center of base top surface department, the test bar is long and thin cylindrical plastic stick. The utility model provides a small -size electroscope simple manufacture, the effect is obvious, and has the advantages of convenient use.
Description
Technical field
This utility model relates to a kind of teaching aid, particularly relates to a kind of small-sized electroscope.
Background technology
Charged object, according to charged character, has the physical phenomenon that same sex electric charge repels mutually, the charges of different polarity attract mutually, and this phenomenon needs to verify with instrument, but still lacks such instrument at present.
Summary of the invention
In order to solve the problems referred to above, the purpose of this utility model is in that to provide a kind of small-sized electroscope.
In order to achieve the above object, the small-sized electroscope that this utility model provides includes: electrical verification rod, axle center, rotating shaft, base and test bar；Wherein: electrical verification rod is elongated cylindrical sticking plaster, being provided with axle center in the middle part of it, axle center is cylindrical shape, its place of bottom center is provided with an axis hole, and rotating shaft is a vertical axis, and its diameter is slightly less than the internal diameter of axis hole, rotating shaft is inserted into after among axis hole, and electrical verification rod can rotate freely in the horizontal plane；Base is cylindrical structural, and rotating shaft lower end is fixed on the center of base top surface；Test bar is elongated cylindrical sticking plaster.
Described electrical verification rod and test bar adopt pencil-lead to make.
Described rotating shaft uses ballpoint tip to make.
Described base uses vial to make.
The small-sized electroscope that this utility model provides makes simple, and effect is obvious；Use easily.
Accompanying drawing explanation
The small-sized galvanoscopic composition schematic diagram that Fig. 1 provides for this utility model.
Detailed description of the invention
Small-sized electroscope this utility model provided below in conjunction with the drawings and specific embodiments is described in detail.
As it is shown in figure 1, the small-sized electroscope that this utility model provides includes: electrical verification rod 1, axle center 2, rotating shaft 3, base 4 and test bar 5；Wherein: electrical verification rod 1 is elongated cylindrical sticking plaster, axle center 2 it is provided with in the middle part of it, axle center 2 is cylindrical shape, its place of bottom center is provided with an axis hole, rotating shaft 3 is a vertical axis, its diameter is slightly less than the internal diameter of axis hole so that rotating shaft 3 is inserted into after among axis hole, and electrical verification rod 1 can rotate freely in the horizontal plane；Base 4 is cylindrical structural, and rotating shaft 3 lower end is fixed on the center of base 4 end face；Test bar 5 is elongated cylindrical sticking plaster.
Described electrical verification rod 1 and test bar 5 adopt pencil-lead to make.
Described rotating shaft 3 uses ballpoint tip to make.
Described base 4 uses vial to make.
The small-sized electroscope that this utility model provides is in use, electrical verification rod 1 and test bar 5 are adducted together, with their one end of cloth friction one piece clean, at this moment electrical verification rod 1 and test bar 5 will bring like charges, axle center 2 on electrical verification rod 1 is enclosed within rotating shaft 3 top so that electrical verification rod 1 is in poised state, when being now close same one end of test bar 5 one end Yu electrical verification rod 1, repulsive interaction will be produced so that electrical verification rod 1 rotates；Same when test bar 5 one end is when the other end of electrical verification rod 1, sucking action will be produced；Thus demonstrate the physical phenomenon that same sex electric charge repels mutually, the charges of different polarity attract mutually.
Claims (4)
1. a small-sized electroscope, it is characterised in that: described small-sized electroscope includes: electrical verification rod (1), axle center (2), rotating shaft (3), base (4) and test bar (5)；Wherein: electrical verification rod (1) is elongated cylindrical sticking plaster, axle center (2) it is provided with in the middle part of it, axle center (2) is cylindrical shape, its place of bottom center is provided with an axis hole, rotating shaft (3) is a vertical axis, its diameter is slightly less than the internal diameter of axis hole so that rotating shaft (3) is inserted into after among axis hole, and electrical verification rod (1) can rotate freely in the horizontal plane；Base (4) is cylindrical structural, and rotating shaft (3) lower end is fixed on the center of base (4) end face；Test bar (5) is elongated cylindrical sticking plaster.
2. small-sized electroscope according to claim 1, it is characterised in that: described electrical verification rod (1) and test bar (5) adopt pencil-lead to make.
3. small-sized electroscope according to claim 1, it is characterised in that: described rotating shaft (3) uses ballpoint tip to make.
4. small-sized electroscope according to claim 1, it is characterised in that: described base (4) uses vial to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088726.1U CN205384800U (en) | 2015-12-19 | 2015-12-19 | Small -size electroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521088726.1U CN205384800U (en) | 2015-12-19 | 2015-12-19 | Small -size electroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205384800U true CN205384800U (en) | 2016-07-13 |
Family
ID=56337937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521088726.1U Expired - Fee Related CN205384800U (en) | 2015-12-19 | 2015-12-19 | Small -size electroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205384800U (en) |
-
2015
- 2015-12-19 CN CN201521088726.1U patent/CN205384800U/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: 20160713 Termination date: 20161219 |