CN201852879U - Sound-light electricity testing pen - Google Patents
Sound-light electricity testing pen Download PDFInfo
- Publication number
- CN201852879U CN201852879U CN2010206176550U CN201020617655U CN201852879U CN 201852879 U CN201852879 U CN 201852879U CN 2010206176550 U CN2010206176550 U CN 2010206176550U CN 201020617655 U CN201020617655 U CN 201020617655U CN 201852879 U CN201852879 U CN 201852879U
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- triode
- power supply
- sound
- penholder
- probe
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- Expired - Fee Related
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Abstract
The utility model provides a sound-light electricity testing pen which relates to an electricity testing pen, and not only can simultaneously display sound and light but also has the advantages of being more convenient, safer, more correct and the like. The sound-light electricity testing pen is provided with a pen holder, a probe, an end cover, a spring and a resistor, wherein the probe is fixed at the front end of the pen holder; the end cover and the spring are arranged at the rear end of the pen holder; one end of the resistor is connected with the probe; the pen holder is provided with an observation window and also internally provided with a sound-light circuit and a power supply; the sound-light circuit is provided with a first triode, a second triode, a capacitor, a buzzer and a light emitting diode, wherein the base electrode of the first triode is connected with the resistor; the emitting electrode of the first triode is connected with the base electrode of the second triode; the collector electrode of the first triode is connected with the light emitting diode, the buzzer and the power supply respectively; the collector electrode of the second triode is connected with the light emitting diode and the buzzer respectively; the emitting electrode of the second triode is connected with the power supply; and two ends of the capacitor are respectively connected with the base electrode of the first triode and the power supply.
Description
Technical field
The utility model relates to a kind of test pencil, especially relates to a kind of acoustooptic test pencil.
Background technology
Test pencil is a kind of electrician's instrument commonly used, when test pencil is worked, constitutes the loop between live wire, test pencil, human body and the earth, and there is faint electric current in the loop by test pencil (about 0.3mA) after the resistance metering function, make the luminous work of neon bulb.
Whether the luminous of existing test pencil general using neon bulb comes decision circuitry charged, but because neon bulb luminous too faint is difficult for observation, and particularly in the place of high light abundance, whether have luminous, might cause danger to operating personnel if often being difficult to see clearly neon bulb.
At present, except traditional test pencil, also has a kind of induction type buzzing test pencil, when this test pencil can be responded to buzzing when the electrified body, though whether this test pencil energy buzzing cue circuit is charged, but because of live wire and zero line normally get together, so often be difficult to confirm that with this test pencil which root is a live wire, which root is a zero line.
In addition, traditional test pencil can't judge before electrical verification whether electroprobe exists fault, when having used the fault test pencil to survey electricity, can show uncharged illusion, damages to operating personnel easily.
Summary of the invention
The purpose of this utility model be to provide a kind of not only can sound, light shows simultaneously, and has the acoustooptic test pencil of advantage such as more convenient, safer, more accurate.
The utility model is provided with penholder, probe, end cap, spring, resistance, probe is fixed on the penholder front end, end cap and spring are located at the penholder rear end, one end of resistance is connected with probe, on penholder, be provided with view window, also be provided with acousto-optic circuit and power supply, acousto-optic circuit and power supply are located in the penholder, described acousto-optic circuit is provided with the 1st triode, the 2nd triode, electric capacity, hummer and light emitting diode, the base stage of the 1st triode is connected with resistance, the emitter of the 1st triode connects the 2nd transistor base, the collector of the 1st triode respectively with light emitting diode, hummer is connected with power supply, the collector of the 2nd triode is connected with hummer with light emitting diode respectively, and the emitter of the 2nd triode is connected with power supply, and the electric capacity two ends are connected with power supply with the base stage of the 1st triode respectively.
Can establish pen clip on the described penholder.Described power supply can adopt button cell.
Compare with existing test pencil, the utility model not only can sound, light shows simultaneously, and have advantages such as more convenient, safer, more accurate.In addition,, when having used the fault electroprobe to survey electricity, can show uncharged illusion, therefore damage to operating personnel easily because traditional electroprobe can't judge before electrical verification whether electroprobe exists fault; And the utility model constitutes the loop by human body, test pencil test lead and battery, and whether normal, thereby guaranteed the accuracy of electrical verification if can detect test pencil itself before electrical verification earlier.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment is formed synoptic diagram.
Fig. 2 becomes exploded view for the structural group of the utility model embodiment.
Fig. 3 is the acousto-optic circuit principle composition diagram of the utility model embodiment.
Embodiment
Following examples will be further described the utility model in conjunction with the accompanying drawings.
Referring to Fig. 1～3, the utility model embodiment is provided with penholder 1, probe 2, end cap 3, spring 4, pen clip 5, resistance R, acousto-optic circuit and power supply E, probe 2 is fixed on penholder 1 front end, end cap 3 and spring 4 are located at penholder 1 rear end, one end of resistance R is connected with probe 2, acousto-optic circuit and power supply E are located in the penholder 1, described acousto-optic circuit is provided with the 1st triode Q1, the 2nd triode Q2, capacitor C, hummer Y and LED, the base stage of the 1st triode Q1 is connected with resistance R, the emitter of the 1st triode Q1 connects the 2nd triode Q2 base stage, the collector of the 1st triode Q1 respectively with LED, hummer Y is connected with power supply E, the collector of the 2nd triode Q2 is connected with hummer Y with LED respectively, the emitter of the 2nd triode Q2 is connected with power supply E, and the capacitor C two ends are connected with power supply E with the base stage of the 1st triode Q1 respectively.On penholder 1, be provided with view window 11.Pen clip 5 is located on the penholder 1.
Power supply E adopts button cell (3V).
Claims (2)
1. acoustooptic test pencil, be provided with penholder, probe, end cap, spring, resistance, probe is fixed on the penholder front end, end cap and spring are located at the penholder rear end, one end of resistance is connected with probe, on penholder, be provided with view window, it is characterized in that also being provided with acousto-optic circuit and power supply, acousto-optic circuit and power supply are located in the penholder, described acousto-optic circuit is provided with the 1st triode, the 2nd triode, electric capacity, hummer and light emitting diode, the base stage of the 1st triode is connected with resistance, the emitter of the 1st triode connects the 2nd transistor base, the collector of the 1st triode respectively with light emitting diode, hummer is connected with power supply, and the collector of the 2nd triode is connected with hummer with light emitting diode respectively, the emitter of the 2nd triode is connected with power supply, and the electric capacity two ends are connected with power supply with the base stage of the 1st triode respectively.
2. acoustooptic test pencil as claimed in claim 1 is characterized in that described power supply adopts button cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206176550U CN201852879U (en) | 2010-11-19 | 2010-11-19 | Sound-light electricity testing pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206176550U CN201852879U (en) | 2010-11-19 | 2010-11-19 | Sound-light electricity testing pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201852879U true CN201852879U (en) | 2011-06-01 |
Family
ID=44095267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206176550U Expired - Fee Related CN201852879U (en) | 2010-11-19 | 2010-11-19 | Sound-light electricity testing pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201852879U (en) |
-
2010
- 2010-11-19 CN CN2010206176550U patent/CN201852879U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20111119 |