CN87207463U - Screw-driver with touchable or untouchable voltage tester - Google Patents
Screw-driver with touchable or untouchable voltage tester Download PDFInfo
- Publication number
- CN87207463U CN87207463U CN 87207463 CN87207463U CN87207463U CN 87207463 U CN87207463 U CN 87207463U CN 87207463 CN87207463 CN 87207463 CN 87207463 U CN87207463 U CN 87207463U CN 87207463 U CN87207463 U CN 87207463U
- Authority
- CN
- China
- Prior art keywords
- test
- driver
- screw
- insulating layer
- voltage tester
- 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.)
- Withdrawn
Links
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a screw-driver with a voltage tester being able to test the electrifying condition of a conductor separating an insulating layer. The test loop of the screw-driver with the voltage tester being able to test the electrifying condition of the conductor separating the insulating layer is composed of a test head, a conductive sheet, a current limiting resistor, a neon tube, and a hand touched electrode. The test head is made from a bibulous material. The tops of the pen holder and the pen cap of the screw-driver with the voltage tester being able to test the electrifying condition of the conductor separating the insulating layer are respectively provided with a window hole, and a plurality of window holes can distinguish out whether the neon tube sends light or not. The structure of the utility model is simple. When the screw-driver with the voltage tester being able to test the electrifying condition of the conductor separating the insulating layer tests electricity, the screw-driver with the voltage tester being able to test the electrifying condition of the conductor separating the insulating layer not only can carry out measurement separating the insulating layer, but also can directly contact with the conductor to carry out measurement. In addition, the screw-driver with the voltage tester being able to test the electrifying condition of the conductor separating the insulating layer can be used as a common soft pen.
Description
The utility model relates to a kind of test pencil that can measure the charged situation of conductor across insulation course.
Announced a patent application case (notification number 85202961) on the Chinese patent about " can measure the test pencil of the charged situation of conductor " across insulation course.The test pencil of this application case record is fixed on the metal driver bit of shell front end by the insulation crust that has transparent fenestra, is contained in compositions such as the interior indication neon tube of housing, amplifier, battery.The deficiency of this test pencil is, adopted the amplifying circuit be made up of field effect transistor and triode and need for the power supply of this circuit supply so structure is complicated, cost is also higher.
The purpose of this utility model is, provides a kind of simple in structure, and cost is low, can be across the electroprobe of insulation course test.
The utility model mainly by penholder, gauge head, water storage container, conducting strip, current-limiting resistance, neon tube, hand touched electrode, etc. form.Each part mentioned above is formed test loop of the present utility model.The penholder top and the cap for brush top of test pencil have a fenestra.The cavity on the top of penholder constitutes the darkroom.If put the cap for brush, can strengthen the length in this darkroom, whether be convenient to recognize neon tube luminous.The gauge head of test pencil can adopt absorbent material to make.
The utility model has the advantages that, simple in structure, when surveying electricity, can also can directly contact across insulation course with conductor.In addition, also can make common soft pen uses.
Accompanying drawing is a sectional view of the present utility model.
Below in conjunction with accompanying drawing the utility model is elaborated.
The gauge head 2 of the utility model embodiment is the nib of common soft pen.Gauge head inserts in the conducting strip 3 and with water storage container and is communicated with, gauge head, conducting strip, with current-limiting resistance 4, neon tube 6 and electrode 5 formation test loops.When surveying electricity, point by live electrode 5, gauge head is smeared on the insulation course of tested lead one time.When the weak current that gauge head is picked up flow through the tester loop, neon tube glimmered.Because the effect in darkroom 7, whether luminous, test under high light if can make out neon tube from fenestra 8, can be enclosed within penholder top to the pen cap 9, and the darkroom is increased, and increases the visibility of light.
Whether charged if measure exposed conductor when, its using method is identical with common test pencil using method.
Claims (3)
1, a kind ofly can measure the whether charged test pencil of conductor across insulation course, this test pencil is made up of insulate penholder 1 and current-limiting resistance 4, luminous neon tube 6, hand touched electrode 5, feature of the present utility model is that the penholder top has a fenestra, the gauge head 2 of test pencil is made by absorbent material, and gauge head inserts in the conducting strip 3 and with a water storage container 10 and is connected.
2, test pencil according to claim 1 is characterized in that having in the penholder top of test pencil a cavity that constitutes darkroom 7.
3, test pencil according to claim 1 is characterized in that a fenestra 8 is opened on the top of the cap for brush of test pencil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207463 CN87207463U (en) | 1987-09-01 | 1987-09-01 | Screw-driver with touchable or untouchable voltage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87207463 CN87207463U (en) | 1987-09-01 | 1987-09-01 | Screw-driver with touchable or untouchable voltage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87207463U true CN87207463U (en) | 1988-03-09 |
Family
ID=4822898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87207463 Withdrawn CN87207463U (en) | 1987-09-01 | 1987-09-01 | Screw-driver with touchable or untouchable voltage tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87207463U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998585A (en) * | 2012-08-02 | 2013-03-27 | 苏州新亚科技有限公司 | Zero line and live line detection module |
-
1987
- 1987-09-01 CN CN 87207463 patent/CN87207463U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998585A (en) * | 2012-08-02 | 2013-03-27 | 苏州新亚科技有限公司 | Zero line and live line detection module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |