CN201749145U - Test pencil - Google Patents
Test pencil Download PDFInfo
- Publication number
- CN201749145U CN201749145U CN2010202931575U CN201020293157U CN201749145U CN 201749145 U CN201749145 U CN 201749145U CN 2010202931575 U CN2010202931575 U CN 2010202931575U CN 201020293157 U CN201020293157 U CN 201020293157U CN 201749145 U CN201749145 U CN 201749145U
- Authority
- CN
- China
- Prior art keywords
- penholder
- neon tube
- test pencil
- neon
- metal
- 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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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a test pencil, belonging to the field of electric testing devices, the test pencil comprises a penholder, one end of the penholder is provided with a pen tail metal, the penholder is provided with neon tube connecting lines in a mutual parallel connection, each neon tube connecting line comprises neon tubes and voltage limit resistors respectively and successively serially connected the neon tubes are connected with a metal fixing sheet, the metal fixing sheet is connected with the pen tail metal at one end of the penholder via a spring, a first inserting piece and a second inserting piece are fixed at the other end of the penholder, the neon tube connecting lines also comprise additional resistors and indicating lamps, one end of the indicating lamp are serially connected to the additional resistors, the other ends of the indicating lamps are connected with the first inserting piece, the additional resistors are connected with the second connecting piece via leads, and are respectively connected with the neon tubes via the voltage limit resistors The test pencil is advantaged by reducing possibility of fault generated by test pencil, and improving operating efficiency, when circuit is in fault, the test pencil can accurately judge zero wire, and quickly determine position of circuit fault.
Description
Technical field
The utility model relates to the electric equipment of a kind of survey, especially a kind of test pencil.
Background technology
At present, the electrician power construction process and people during at the life staying idle at home repair circuit normally used test pencil all be that structures such as neon tube, spring, metal contact are set in the shaft of a writing brush, when with the test pencil end with after lead contacts, hand is pressed the metal contact, if neon tube is luminous, illustrate that this lead is a live wire, otherwise just might be zero line; When test pencil and two leads contact neon tube and all do not work, illustrate that then live wire is disconnected, can't correctly judge zero live wire this moment timely.
In addition, in use, test pencil may break down and can not use.And most faults of test pencil are the damages owing to neon tube, and are difficult in appearance after damaging finding.Therefore, when test pencil broke down, the user can not directly make judgement, even cause testee to have dangerous voltage, damaged test pencil neon tube can be not luminous yet, thereby make people's misjudgment, and electric shock accidents easily takes place.Therefore, at present test pencil is before formal the use, and the user generally wants measure certain charged marker with it earlier, when neon tube is can be normal luminous, promptly confirms the test pencil operate as normal, confirms that step has increased user's workload.
Summary of the invention
The purpose of this utility model is to provide a kind of test pencil, and this test pencil greatly reduces the possibility that test pencil breaks down, and has improved work efficiency; In addition, when circuit breaks down, utilize this test pencil also can accurately judge zero live wire, simultaneously can fast measuring fault position.
In order to reach above purpose, the technical scheme that the utility model adopted is: this test pencil, comprise penholder, one end of penholder is provided with a tail metal, be provided with the neon tube connection line of connection parallel with one another in the penholder, described every neon tube connection line comprises neon tube and the pressure limiting resistance that is connected together in series respectively, neon tube is connected with the metal stator, the metal stator is connected with a tail metal of penholder one end by spring, it is characterized in that: the other end of described penholder is fixed with first inserted sheet and second inserted sheet, also comprise additional resistance and pilot lamp in the neon tube connection line, one end of described pilot lamp is connected in series with additional resistance respectively, the other end of pilot lamp is connected with first plug, and additional resistance, is connected with neon tube by pressure limiting resistance respectively with after second plug is connected by lead.
The utility model is provided with the neon tube connection line of at least two groups connection parallel with one another in the described penholder.
The beneficial effects of the utility model are: by many group neon tube connection lines are set, greatly reduce the possibility that test pencil breaks down, improved work efficiency and safety in utilization, can in time repair the neon tube that changes damage, reduced unnecessary job step; In addition,,, also can accurately differentiate zero live wire position, and distinguish the fault position fast, guarantee user's safety even when circuit breaks down by in every group of neon tube connection line, increasing pilot lamp.
Description of drawings
Fig. 1 is a cut-open view of the present utility model.
Among the figure: 1, penholder; 2, metal stator; 3 and 3 ', neon tube; 4 and 4 ', pressure limiting resistance; 5 and 5 ', additional resistance; 6 and 6 ', pilot lamp; 7, first inserted sheet; 8, second inserted sheet; 9, a tail metal; 10, spring.
Embodiment
Make the utility model with reference to accompanying drawing 1.This test pencil comprises penholder 1, and an end of penholder 1 is provided with a tail metal 9, and corresponding penholder 1 other end is fixed with two inserted sheets, is respectively first inserted sheet 7 and second inserted sheet 8.Be provided with two groups of neon tube connection lines that are connected in parallel in the penholder 1, described every group of neon tube connection line comprises the neon tube that is connected together in series 3,3 ' and pressure limiting resistance 4,4 ', also comprise additional resistance and pilot lamp in the neon tube connection line, described pilot lamp 6, an end of 6 ' are connected in series with additional resistance 5,5 ' respectively, and pilot lamp 6,6 ' the other end are connected with first plug 7.Additional resistance 5,5 ', is connected with neon tube 3,3 ' by pressure limiting resistance 4,4 ' respectively with after second plug 8 is connected by lead.Neon tube 3,3 ' is connected with metal stator 2, and metal stator 2 is connected with a tail metal 9 of penholder one end by spring 10.
When this test pencil uses, directly insert first inserted sheet 7 and second inserted sheet 8 in the supply socket, hand is pressed a tail metal 9 of penholder 1 one ends, at this moment, electric current successively by inserted sheet 7 and 8, pilot lamp 6 and 6 ', additional resistance 5 and 5 ', pressure limiting resistance 4 and 4 ', metal stator 2, spring 10 and human body, arrives ground respectively at last, has constituted complete current path, under the normal operating conditions, pilot lamp 6 and 6 ', neon tube 3 and 3 ' are all luminous.At this moment, when pilot lamp 6,6 ' and neon tube 3,3 ' when all luminous, just can conclude that the lead that links to each other with second inserted sheet 8 is a live wire, the lead that links to each other with first inserted sheet 7 is a zero line; When the luminous and neon tube of pilot lamp is not luminous, just can conclude that the lead that links to each other with second inserted sheet 8 is a zero line, the lead that links to each other with first inserted sheet 7 is a live wire; When the not luminous and neon tube of pilot lamp is luminous, the nil segment that expression links to each other with first inserted sheet 7; When pilot lamp and neon tube were all not luminous, expression might be the live wire section, also might be that zero live wire all breaks.Simultaneously, when the wherein neon tube in a group in the neon tube connection line parallel with one another and pilot lamp all can not be lighted, illustrate that damaging appears in the neon tube in this circuit, need to change the neon tube that damages this moment.
In addition, also can comprise the neon tube connection line of more groups of connections parallel with one another in the utility model, the composition of every group of neon tube connection line as mentioned above.
Claims (1)
1. test pencil, comprise penholder (1), one end of penholder (1) is provided with a tail metal (9), be provided with the neon tube connection line of connection parallel with one another in the penholder (1), described every neon tube connection line comprises the neon tube (3 that is connected together in series respectively, 3 ') and pressure limiting resistance (4,4 '), neon tube (3,3 ') be connected with metal stator (2), metal stator (2) is connected with a tail metal (9) of penholder one end by spring (10), it is characterized in that: the other end of described penholder (1) is fixed with first inserted sheet (7) and second inserted sheet (8), also comprise additional resistance (5 in the neon tube connection line, 5 ') and pilot lamp (6,6 '), described pilot lamp (6,6 ') a end respectively with additional resistance (5,5 ') be connected in series, pilot lamp (6,6 ') the other end is connected with first plug (7), additional resistance (5,5 ') by lead with after second plug (8) is connected, respectively by pressure limiting resistance (4,4 ') with neon tube (3,3 ') connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202931575U CN201749145U (en) | 2010-08-17 | 2010-08-17 | Test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202931575U CN201749145U (en) | 2010-08-17 | 2010-08-17 | Test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201749145U true CN201749145U (en) | 2011-02-16 |
Family
ID=43583821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202931575U Expired - Fee Related CN201749145U (en) | 2010-08-17 | 2010-08-17 | Test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201749145U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508009A (en) * | 2011-10-29 | 2012-06-20 | 常熟市董浜镇华进电器厂 | Multifunctional test pencil |
| CN110632364A (en) * | 2019-09-16 | 2019-12-31 | 优利德科技(中国)股份有限公司 | Non-contact voltage detection device, plug-in structure and method |
-
2010
- 2010-08-17 CN CN2010202931575U patent/CN201749145U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508009A (en) * | 2011-10-29 | 2012-06-20 | 常熟市董浜镇华进电器厂 | Multifunctional test pencil |
| CN110632364A (en) * | 2019-09-16 | 2019-12-31 | 优利德科技(中国)股份有限公司 | Non-contact voltage detection device, plug-in structure and method |
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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: 20110216 Termination date: 20130817 |