CN202049189U - Multifunctional double-tube test pencil - Google Patents
Multifunctional double-tube test pencil Download PDFInfo
- Publication number
- CN202049189U CN202049189U CN2011201493440U CN201120149344U CN202049189U CN 202049189 U CN202049189 U CN 202049189U CN 2011201493440 U CN2011201493440 U CN 2011201493440U CN 201120149344 U CN201120149344 U CN 201120149344U CN 202049189 U CN202049189 U CN 202049189U
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- CN
- China
- Prior art keywords
- tube
- test
- contact
- test contact
- screwdriver head
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- Expired - Fee Related
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Abstract
Disclosed is a multifunctional double-tube test pencil. In the double-tube insulating outer casing with two indicator lamp windows, a test contact with flat screwdriver head, a current limit resistor R1, a neon tube a, a metal spring and a hand touch electrode are serially connected in one tube, an indicator lamp b, a current limit resistor R2 and a test contact with cross screwdriver head are serially connected in another tube through a metal lead and the test contact with flat screwdriver head, and the joint of the double-tube insulating outer casing is provided with a gap for the metal lead to pass through. The two test contacts are hollow, the tops and the tails are respectively provided with screw threads matched with screw threads on the top of the insulating outer casing in which the test contacts locate, by freely selecting a contact to protrude out of the tube and flush with the test contact with flat screwdriver head or selecting a contact to be hidden in the tube, the aim of detecting whether a ground wire is grounded well or whether the zero line is broken is reached, and the double-tube test pencil can also be used as a cross screwdriver and a flat head screwdriver.
Description
Affiliated technical field
Whether good whether the utility model relates to the Electric tester that a kind of instructed voltage exists, especially can detect ground wire grounded and zero line and break, and can doublely make the two-tube multi-functional test pencil of cross screwdriver and tack screwdriver.
Background technology
At present, known test pencil structure is to be in series by test contact, current-limiting resistance, neon tube, metal spring and hand touched electrode, the situation that this test pencil can be tested live wire but can't be judged the ground connection situation of ground wire and zero line, and use some electrical appliance under ground wire grounded bad situation is danger close, such as washing machine etc.
Summary of the invention
For eliminate existing test pencil the potential safety hazard that can not judge, the utility model provides a kind of two-tube multi-functional test pencil, especially can detect ground wire grounded whether good and zero line and whether cut off the power supply, and can doublely make the multi-functional test pencil of cross screwdriver and tack screwdriver.
The technical scheme that its technical matters that solves the utility model adopts is: in the two-tube insulation crust inside that has two pilot lamp windows, test contact, current-limiting resistance R1, neon tube a, metal spring and the hand touched electrode of band tack crewdriver attachment are connected in the pipe, the test contact of pilot lamp b, current-limiting resistance R2 and band cross screwdriver head is connected in another pipe by the test contact of plain conductor and band tack crewdriver attachment, and the space of passing for plain conductor is left in two-tube insulation crust junction.Wherein, two test contact all are hollow, and top and afterbody are threaded respectively and can match with the screw thread at its insulation crust top, place, and it is outer or select contact to be hidden in the pipe freely to select contact to lean out pipe.When the test contact of band cross screwdriver head is hidden in the pipe, the test contact of band tack crewdriver attachment leans out outside the pipe, use principle of the present utility model and method are identical with existing common test pencil, and finger is by assistant's touched electrode, and the test contact of band tack crewdriver attachment stretches in the socket tests; When the test contact protruded tube of band cross screwdriver head is outer when flushing with the test contact maintenance of being with the tack crewdriver attachment, insert both in the socket simultaneously, wherein the test contact with the tack crewdriver attachment stretches into firewire jack, the test contact of band cross screwdriver head stretches into ground wire jack, finger is by assistant's touched electrode, under the bright prerequisite of neon tube a, illustrate ground wire grounded well if pilot lamp b does not work, illustrate ground wire grounded bad if pilot lamp b is bright; Determine that live wire connects under the good premise, when the test contact protruded tube of band cross screwdriver head is outer when flushing with the test contact of being with the tack crewdriver attachment, insert both in the socket simultaneously, wherein the test contact with the tack crewdriver attachment stretches into firewire jack, the test contact of band cross screwdriver head stretches into zero line jack, finger is not pressed the hand touched electrode, if fruit pilot lamp b works neutral line break is not described then.
Whether good whether the beneficial effects of the utility model are, the function of common test pencil is not only arranged, and can detect ground wire grounded and zero line and break, and can also doublely do the use of cross screwdriver and tack screwdriver simultaneously.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the test pencil internal structural map.
Fig. 2 is a test pencil one-piece construction synoptic diagram.
Among the figure, the 1. test contact of band tack crewdriver attachment, 2. metal spring, 3. hand touched electrode, 4. plain conductor, the 5. test contact of band cross screwdriver head, 6. two-tube insulation crust, 7. pilot lamp window.
Embodiment
In Fig. 1, a is a neon tube, b is a pilot lamp, R1, R2 are two current-limiting resistances, connect with test contact 1, current-limiting resistance R1, neon tube a, metal spring and the hand touched electrode of tack crewdriver attachment on the one hand, on the other hand will be with test contact 1, pilot lamp b, the current-limiting resistance R2 of tack crewdriver attachment and test contact 5 series connection of being with the cross screwdriver head by plain conductor.Wherein, two test contact all are hollow, and top and afterbody are threaded respectively and can match with the screw thread at its insulation crust top, place, and it is outer or select contact to be hidden in the pipe freely to select contact to lean out pipe.
In Fig. 2, the space of passing for plain conductor is left in two-tube insulation crust junction, test contact 1, current-limiting resistance R1, neon tube a, metal spring and the hand touched electrode of band tack crewdriver attachment are connected in the pipe, the test contact 5 of pilot lamp b, current-limiting resistance R2 and band cross screwdriver head is connected in another pipe by the test contact of plain conductor and band tack crewdriver attachment, a pilot lamp window is arranged for identification pilot lamp situation on the two-tube insulation crust respectively.
In embodiment illustrated in figures 1 and 2, when being hidden in pipe build-in test contact 1, test contact 5 leans out pipe when outer, and use principle of the present utility model and method are identical with existing common test pencil, point and press assistant's touched electrode, and test contact 1 stretches in the socket tests; When flushing with test contact 1 outside test contact 5 protruded tubes, insert both in the socket simultaneously, wherein test contact 1 stretches into firewire jack, test contact 5 stretches into ground wire jack, finger is by assistant's touched electrode, under the bright prerequisite of neon tube a, illustrate ground wire grounded well if pilot lamp b does not work, illustrate ground wire grounded bad if pilot lamp b is bright; Determine that live wire connects under the good premise, when flushing with test contact 1 outside test contact 5 protruded tubes, insert both in the socket simultaneously, wherein test contact 1 stretches into firewire jack, test contact 5 stretches into zero line jack, finger is not pressed the hand touched electrode, if fruit pilot lamp b works neutral line break is not described then.
Claims (2)
1. multi-functional two-tube test pencil, by the two-tube insulation crust that has two pilot lamp windows, the test contact of band tack crewdriver attachment, metal spring, the hand touched electrode, plain conductor, the test contact of band cross screwdriver head, neon tube, pilot lamp, current-limiting resistance is formed, it is characterized in that: in the two-tube insulation crust inside that has two pilot lamp windows, the test contact of band tack crewdriver attachment, current-limiting resistance, neon tube, metal spring and hand touched electrode are connected in the pipe, pilot lamp, the test contact of another current-limiting resistance and band cross screwdriver head is connected in another pipe by the test contact of plain conductor and band tack crewdriver attachment, and the space of passing for plain conductor is left in two-tube insulation crust junction.
2. a kind of multi-functional two-tube test pencil according to claim 1, it is characterized in that: two test contact all are hollow, top and afterbody are threaded respectively and can match with the screw thread at its insulation crust top, place, and it is outer or select contact to be hidden in the pipe freely to select contact to lean out pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201493440U CN202049189U (en) | 2011-05-02 | 2011-05-02 | Multifunctional double-tube test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201493440U CN202049189U (en) | 2011-05-02 | 2011-05-02 | Multifunctional double-tube test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202049189U true CN202049189U (en) | 2011-11-23 |
Family
ID=44989494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201493440U Expired - Fee Related CN202049189U (en) | 2011-05-02 | 2011-05-02 | Multifunctional double-tube test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202049189U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090148A (en) * | 2014-06-26 | 2014-10-08 | 国家电网公司 | Double-end conversion test pencil |
| CN105629120A (en) * | 2014-11-26 | 2016-06-01 | 国网辽宁省电力有限公司丹东供电公司 | 220V multifunctional loop electroscope |
-
2011
- 2011-05-02 CN CN2011201493440U patent/CN202049189U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090148A (en) * | 2014-06-26 | 2014-10-08 | 国家电网公司 | Double-end conversion test pencil |
| CN105629120A (en) * | 2014-11-26 | 2016-06-01 | 国网辽宁省电力有限公司丹东供电公司 | 220V multifunctional loop electroscope |
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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: 20111123 Termination date: 20130502 |
|
| DD01 | Delivery of document by public notice |
Addressee: Zhang Yanfeng Document name: Notification of Termination of Patent Right |