CN2457607Y - Test pencil - Google Patents
Test pencil Download PDFInfo
- Publication number
- CN2457607Y CN2457607Y CN 00253428 CN00253428U CN2457607Y CN 2457607 Y CN2457607 Y CN 2457607Y CN 00253428 CN00253428 CN 00253428 CN 00253428 U CN00253428 U CN 00253428U CN 2457607 Y CN2457607 Y CN 2457607Y
- Authority
- CN
- China
- Prior art keywords
- phase
- test contact
- neon tube
- test
- branch
- 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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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model relates to a test pencil. A common test pencil is also provided with a second circuit which is composed of a two-phase neon tube and a dividing testing contact head. One phase of the two-phase neon tube is electrically connected with a component of a first circuit. The other phase is directly connected with the dividing testing contact head provided with an outer shell, or is connected with the dividing testing contact head provided with the outer shell through a resistor component. The utility model can be used as a common test pencil. In addition, the utility model can detect wires or electrified terminals which belong to the same electric circuit and can find out the breaking position of a wire. Compared with a common test pencil, the cost of the utility model is increased a little.
Description
The utility model relates to a kind of Electric tester that voltage exists that detects, and especially is suitable for a kind of by housing be arranged on the test pencil that test contact, current-limiting resistance, single-phase neon tube and hand touched electrode in this housing are formed.
Whether charged detecting metallic object particularly in lead the device, the simplest device commonly used has test pencil.This kind test pencil mainly adopts the structure of test contact, current-limiting resistance, single-phase neon tube and the hand touched electrode of serial connection successively.During test, at first contact with tested metallic object, contact with the hand touched electrode with staff then, when single-phase neon tube is luminous, just prove that tested metallic object is charged, otherwise tested metallic object is just not charged with test contact.Reflect with the luminous mode of neon tube whether tested metallic object is charged very direct, and structure is also quite simple.
Yet, described test pencil is owing to have only a test contact, so it can only detect a lead at every turn or metal terminal whether charged, and in testing process, can not determine for certain lead or metal terminal not charged be because do not have external power supply or its a certain position open circuit cause, promptly enabling to determine is that it opens circuit institute extremely, also can't find its position of opening circuit with this test pencil; Secondly,, just can not detect which root lead or live terminal belongs to same electric loop, can not measure the position that opening circuit appears in lead with this kind test pencil because electric equipment or household electrical appliance comprise many plain conductors or a plurality of metal terminal.
Whether task of the present utility model provides a kind of tested metallic object or lead of can detecting charged or investigate out the position that it opens circuit, and can measure which live terminal again easily is the test pencil that belongs to same electric loop.
For finishing above-mentioned task, the utility model also is provided with second loop of being made up of two-phase neon tube and branch test contact on common test pencil, wherein one being electrically connected with the described first loop assembly of this two-phase neon tube, another directly or through resistance component is connected with the branch test contact that has shell mutually.Whether when only using the first loop assembly test object charged, promptly this test pencil can be used as common test pencil and uses; If when wanting to test two or multiple conducting wires and whether belonging to same electric loop, as long as the test contact in first loop is contacted with the terminal of a lead wherein earlier, has only individual event neon tube build-up of luminance this moment, and then the branch test contact in second loop is contacted respectively with the terminal of other lead, can make two-phase neon tube build-up of luminance if be placed on the terminal of any root lead, then this lead and aforementioned wire belong to same electric loop, if be placed on the terminal of lead not build-up of luminance of two-phase neon tube, then this lead and aforementioned wire just do not belong to same electric loop; As when thinking that test lead opens circuit the position, investigate as long as be placed on respectively on this lead with two discerptible distances of test contact, if the phenomenon of a neon tube build-up of luminance in the investigation process, occurs having only, illustrate that then a position of opening circuit is just on the position between two test contact.
The two ends of described two-phase neon tube one phase join with test contact and current-limiting resistance respectively, and another is connected with the branch test contact by resistance component.
A described two-phase neon tube phase wherein can be arranged between current-limiting resistance and the single-phase neon tube, and another directly is electrically connected with the branch test contact by lead mutually.
Described two-phase neon tube can be arranged in the housing of branch test contact, and makes one joining with test contact and hand touched electrode respectively by two leads that are arranged on its two ends wherein, and another is electrically connected with the branch test contact by resistance component.
Described test contact and branch test contact can be arranged on an end of described housing versatilely by pivot.
Described minute test contact be when, being in and described two-phase neon tube off-state point-blank the time with housing, and when with described housing when angled, with one of the two-phase neon tube status of electrically connecting that coordinates.
Being provided with one between described minute test contact and the test contact can make branch test contact and two-phase neon tube be in the trigger switch that disconnects or be electrically connected two kinds of duties.
Because the utility model has adopted second a loop assembly of being made up of two-phase neon tube and branch test contact on common test pencil, when detecting metallic object with two loop assemblies are very little on the same day, whether not only can detect tested metallic object charged, which can also detect belong to same electric loop in a plurality of leads or live terminal, topmost advantage is to investigate out the position of opening circuit of lead step by step with two test contact; In addition, the second loop assembly has just adopted a two-phase neon tube and branch test contact, so it is compared with common test pencil does not increase for how many costs.
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing 1 is the cut-away section structural representation of an embodiment of the utility model;
The cross-sectional view of 2 couples of another embodiment of the utility model of accompanying drawing.
Referring to Fig. 1, it provides a kind of structure of this test pencil 1.As can be seen from the figure, the first loop assembly of forming this test pencil comprise successively mutually one of the test contact 11 of serial connection, two-phase neon tube 12 mutually 121, current-limiting resistance 13, single-phase neon tube 14, spring 15 and hand touched electrode 16.When as seen, only using the first loop module testing metallic object whether charged and common pencil test structure basic identical.And another of two-phase neon tube 12 joins and forms the second loop assembly through resistance 17 and branch test contact 18.Whether when testing two conductors or lead simultaneously with the first loop assembly and the second loop assembly, it is charged promptly can to test out measured conductor, and whether can test out two leads again is to belong to same electric loop.When whether two leads of test belong to same electric loop, test contact 11 is contacted with the terminal of a lead, have only single neon tube 14 build-ups of luminance this moment, then branch test contact 18 is contacted with the terminal of another root lead, if two-phase neon tube 12 is build-up of luminance also, illustrate that then two tested leads belong to same electric loop, and, illustrate that two tested leads do not belong to same loop when two-phase neon tube 12 not during build-up of luminance.Can also determine with identical method whether many belong to same loop problem.And when determining the opening circuit during the position of lead, contact with the terminal of test contact 11 earlier with a lead, contact with other position of this lead with branch test contact 18 again, as two neon tubes (12,14) build-up of luminance all illustrates that the lead between two test contact (11,18) does not open circuit, if have only single-phase neon tube 14 build-ups of luminance, illustrate that two leads between the test contact have the position of opening circuit.
Certainly, above-mentioned two-phase neon tube 12 can also be installed in it position between current-limiting resistance 13 and the single-phase neon tube 14, this kind structure two-phase neon tube 12 wherein one with minute test contact 18 between can directly be connected by lead, make structure of the present utility model more simple.
Have, described two-phase neon tube 12 also can be set directly in the branch test contact 18 again, and at this moment, one of two-phase neon tube 12 joins through two leads and hand touched electrode 16 and current-limiting resistance 13 respectively mutually, and its another phase can directly be joined with branch test contact 12.
Referring to Fig. 2, it provides the surface structure of another embodiment of the utility model.In this structure, two test contact are that test contact 11 and branch test contact 18 can be arranged on an end of described housing 10 with it by the pivot 19 of periphery insulation, wherein, the end that branch test contact 18 is arranged in the housing 10 can join with two-phase neon tube 12 by key switch 181 again, and the other end of branch test contact 18 can make it separate certain distance with test contact 11 around pivot 19 rotations.Described key switch 181 can adopt two contact type electrodes, and promptly these two contact electrodes can make to be between branch test contact 18 and the two-phase neon tube 12 and switch on and off two states.When two test contact (11,18) are closed, can make by chain type switch 181 to be in off-state, the test pencil 1 of this moment can be used as common test pencil and uses; When the front end of above-mentioned two test contact separates, can make key switch 181 be in closure state, the test pencil 1 of this moment can be finished open circuit position and the school line task investigated.
In addition, above-mentioned branch test contact 18 can also adopt the structure that action is direct and two-phase neon tube 12 switches on and off by its open and close, promptly when dividing test contact 18 and housing 10 point-blank, it is in and described two-phase neon tube 12 off-states, and when with described housing 10 when angled, it is arranged on one of end in the housing 10 and two-phase neon tube 12 status of electrically connecting that coordinates, and can finish each task described in the utility model.
Claims (7)
1. test pencil, comprise the first loop assembly of forming by the test contact, current-limiting resistance, single-phase neon tube and the hand touched electrode that are arranged in the housing, it is characterized in that: also comprise the second loop assembly of forming by two-phase neon tube and branch test contact, one being electrically connected with the described first loop assembly wherein of this two-phase neon tube, another directly or through resistance component is connected with the branch test contact that has shell mutually.
2. test pencil according to claim 1 is characterized in that: the two ends of described two-phase neon tube one phase join with test contact and current-limiting resistance respectively, and another is connected with the branch test contact by resistance component.
3. test pencil according to claim 1 is characterized in that: a described two-phase neon tube phase wherein can be arranged between current-limiting resistance and the single-phase neon tube, and another directly is electrically connected with the branch test contact by lead mutually.
4. test pencil according to claim 1, it is characterized in that: described two-phase neon tube can be arranged in the housing of branch test contact, and make one joining with test contact and hand touched electrode respectively by two leads that are arranged on its two ends wherein, another is electrically connected with the branch test contact by resistance component.
5. according to the described test pencil of claim 1 to 4, it is characterized in that: described test contact and branch test contact can be arranged on an end of described housing versatilely by pivot.
6. test pencil according to claim 5, it is characterized in that: described minute test contact is when with housing point-blank the time, be in and described two-phase neon tube off-state, and when with described housing when angled, with one of the two-phase neon tube status of electrically connecting that coordinates.
7. test pencil according to claim 5 is characterized in that: be provided with one between described minute test contact and the test contact and can make branch test contact and two-phase neon tube be in the trigger switch that disconnects or be electrically connected two kinds of duties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253428 CN2457607Y (en) | 2000-12-14 | 2000-12-14 | Test pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253428 CN2457607Y (en) | 2000-12-14 | 2000-12-14 | Test pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2457607Y true CN2457607Y (en) | 2001-10-31 |
Family
ID=33610886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00253428 Expired - Fee Related CN2457607Y (en) | 2000-12-14 | 2000-12-14 | Test pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2457607Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643436A (en) * | 2017-11-16 | 2018-01-30 | 中国重汽集团大同齿轮有限公司 | A kind of bifunctional electroprobe |
| CN112595878A (en) * | 2020-12-31 | 2021-04-02 | 广东海洋大学 | Adjustable voltage detection device for electrical engineering convenient to accomodate and carry |
-
2000
- 2000-12-14 CN CN 00253428 patent/CN2457607Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643436A (en) * | 2017-11-16 | 2018-01-30 | 中国重汽集团大同齿轮有限公司 | A kind of bifunctional electroprobe |
| CN112595878A (en) * | 2020-12-31 | 2021-04-02 | 广东海洋大学 | Adjustable voltage detection device for electrical engineering convenient to accomodate and carry |
| CN112595878B (en) * | 2020-12-31 | 2022-06-07 | 广东海洋大学 | Adjustable voltage detection device for electrical engineering convenient to accomodate and carry |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |