CN2690895Y - Line on-and-off detector - Google Patents
Line on-and-off detector Download PDFInfo
- Publication number
- CN2690895Y CN2690895Y CN 200320122890 CN200320122890U CN2690895Y CN 2690895 Y CN2690895 Y CN 2690895Y CN 200320122890 CN200320122890 CN 200320122890 CN 200320122890 U CN200320122890 U CN 200320122890U CN 2690895 Y CN2690895 Y CN 2690895Y
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- CN
- China
- Prior art keywords
- circuit
- handset
- prompting device
- trigger circuit
- machine tool
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- Expired - Fee Related
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Abstract
The utility model relates to a line on-and-off detector, comprising a master machine and a sub machine. The master machine and the sub machine are respectively provided with a power source, a checking end, and a prompting device. The line on-and-off detector is characterized in that: the master machine and the sub machine are respectively composed of a trigger circuit; when the lines between the master machine checking end and the sub machine checking end are turned on, the master machine can emit prompting signals through that the master machine trigger circuit triggers the main machine prompting device. The line on-and-off detector has the checking function in the two directions; once the both parties of the terminal line emit the sound, the light signal can prompt, and the usage is convenient. Considering the safety, the electric cable on-and-off acousto-optic detector can supply the power through adopting a 6-volt battery; when the electric wire is measured, the cable or the electric motor coil winding group is very safe to the insulating status of the ground, the number checking of the telephone line, etc, and the line on-and-off detector can be safely used.
Description
Technical field
The utility model relates to a kind of circuit on-off tester, particularly is used for the verification electric wire, cable, transformer coil conducting or the circuit on-off tester that opens circuit.
Background technology
Usually verification electric wire, cable, transformer coil conducting or when opening circuit, the instrument that we use always is multimeter or megger, but both uses are in fact very inconvenient.As with multimeter during as testing tool, head ceaselessly rocks back and forth between cable and multimeter, carelessness is arranged slightly or shake will all that has been achieved is spoiled.As testing with megger, very dangerous, (operating voltage of megger self has 500 volts in use--and 1000 volts) be exactly to have found end line, the other side does not know yet, and speed is slow, workload is big.
Summary of the invention
The purpose of this utility model is, a kind of circuit on-off tester is provided, and is slow with the instrument verification speed that overcomes existing checking circuit break-make, and workload is the technical matters of safety greatly and inadequately.
For reaching above-mentioned purpose, the technical solution of the utility model is as follows:
A kind of circuit on-off tester is made of a machine tool and a handset; Described machine tool and handset respectively have a power supply, a checkout terminal and a prompting device; It is characterized in that, described machine tool and handset also respectively comprise trigger circuit, when between machine tool checkout terminal and the handset checkout terminal during line conduction, the machine tool power supply sends cue by machine tool trigger circuit triggers machine tool prompting device, and the handset power supply sends cue by handset trigger circuit triggers handset prompting device.
Described trigger circuit comprise energy-storage travelling wave tube, and the triggering of described prompting device provides electric energy by this energy-storage travelling wave tube.
Described trigger circuit comprise impedor, and this impedor is connected with described energy-storage travelling wave tube.
Described trigger circuit also comprise a reverse circuit, and trigger circuit disconnect when the voltage on the described energy-storage travelling wave tube surpasses 2/3rds operating voltage, and described prompting device is closed; When the trigger circuit closure during less than 1/3rd operating voltage of the voltage on the described energy-storage travelling wave tube, described prompting device is opened.
Described prompting device is sound and/or light prompt device.
Adopt as above circuit on-off tester, if machine tool checkout terminal and handset checkout terminal constitute the loop by lead, the power supply of machine tool charges to energy-storage travelling wave tube by the impedor in its trigger circuit so, circuit upset when the voltage on the energy-storage travelling wave tube surpasses 2/3rds operating voltage, the acousto-optic indication pauses; When the circuit upset during less than 1/3rd operating voltage of the voltage on the energy-storage travelling wave tube, the acousto-optic indication is opened, and electric current, goes round and begins again again to the energy-storage travelling wave tube charging by impedor like this simultaneously, the acousto-optic indication is produced pause and flicker.
Above-mentioned circuit on-off tester is two-way all to have the check and correction function, in case find end line, both sides have the sound, and wigwag is pointed out, and uses easily.Consider its security, this electric wire break-make acousto-optic tester adopts 6 volts of powered battery, is measuring electric wire, cable or motor winding winding insulation against ground situation, and telephone wire check mark etc., as safe as a house, can relievedly use.
This product has following effect:
1 practicality is wide; It can be to the verification of electric wire break-make, also can be to the verification and the transformer coil of motor winding and casing insulation, and the electric fan coil is logical. verification of opening circuit or the like.
2 adaptability are strong; The utility model is not subjected to any ambient temperature effect, can all be easy to use at position angle arbitrarily, and tester also has anti-shake function.
3 is durable in use; Because the tester static working current is 3 milliamperes, so four batteries can be with for a long time, this tester adopts No.5 cell, and volume is very little, and is easy to carry.
4 is with low cost; The utility model cost of manufacture is tens yuans only, is easy to promote.
5 have a bright future; The utility model just can be made various types of alarms, time controller, short-circuit protector or the like as improving a little.
Description of drawings
Fig. 1 is the circuit diagram of the machine tool of electric wire break-make tester of the present utility model;
Fig. 2 is the circuit diagram of the handset of electric wire break-make tester of the present utility model.
Embodiment
Consult Fig. 1 and Fig. 2 below,, design feature of the present utility model is further described in conjunction with a specific embodiment.
Circuit on-off tester of the present utility model is made of a machine tool shown in Figure 1 and a handset shown in Figure 2.
Machine tool has a 6V power supply E, and power supply E one brings out and is connected with a K switch 2.Machine tool has a checkout terminal Al, B1, and sound and flashing indicator; Also comprise trigger circuit, these trigger circuit comprise capacitor C 1, resistance R 11, R12, three triodes 15,16 and BG1.Resistance R 11 and R12 series connection back serial connection capacitor C 1.Machine tool closes behind the K1, and A1, B1 two ends be owing to disconnect, the triode 15,16 among Fig. 1 not electric, so the circuit of back is not worked.When A1, B1 two ends constitute the loop by lead and handset, triode 15,16 must conduct so, by resistance R 11, R12 gives capacitor C 1 charging, circuit upset when the voltage on the C1 surpasses 2/3rds operating voltage, triode BG1 is output not, when the circuit upset during of the voltage on the C1 less than 1/3rd operating voltage, triode BG1 has output, electric current is by resistance R 11 simultaneously, and R12 gives capacitor C 1 charging again, goes round and begins again like this, make triode BG1 be on off operating mode always, pause and flicker thereby allow acousto-optic produce.
Handset has a 6V power supply E, and power supply E one brings out and is connected with a K switch 2.Handset has a checkout terminal A2, B2; And a sound and a flashing indicator; Also comprise trigger circuit, these trigger circuit comprise capacitor C 2, resistance R 21, R22, three triodes 25,26 and BG2.Resistance R 21 and R22 series connection back serial connection capacitor C 2.Handset is closed behind the K, and 23 and 24 are in high impedance, the triode 25,26 among Fig. 2 not electric, so the circuit of back is not worked.When A2, B2 two ends constitute the loop by lead and machine tool, triode 25,26 must conduct so, by resistance R 21, R22 gives capacitor C 2 chargings, circuit upset when the voltage on the C2 surpasses 2/3rds operating voltage, triode BG2 is output not, when the circuit upset during of the voltage on the C2 less than 1/3rd operating voltage, triode BG2 has output, electric current is by resistance R 21 simultaneously, and R22 gives capacitor C 2 chargings again, goes round and begins again like this, make triode BG2 be on off operating mode always, pause and flicker thereby allow acousto-optic produce.
Claims (6)
1. a circuit on-off tester is made of a machine tool and a handset; Described machine tool and handset respectively have a power supply, a checkout terminal and a prompting device; It is characterized in that, described machine tool and handset also respectively comprise trigger circuit, when between machine tool checkout terminal and the handset checkout terminal during line conduction, the machine tool power supply sends cue by machine tool trigger circuit triggers machine tool prompting device, and the handset power supply sends cue by handset trigger circuit triggers handset prompting device.
2. circuit on-off tester as claimed in claim 1 is characterized in that described trigger circuit comprise energy-storage travelling wave tube, and the triggering of described prompting device provides electric energy by this energy-storage travelling wave tube.
3. circuit on-off tester as claimed in claim 2 is characterized in that described trigger circuit comprise impedor, and this impedor is connected with described energy-storage travelling wave tube.
4. as claim 1 or 2 or 3 described circuit on-off testers, it is characterized in that described trigger circuit also comprise a reverse circuit, trigger circuit disconnect when the voltage on the described energy-storage travelling wave tube surpasses 2/3rds operating voltage, and described prompting device is closed; When the trigger circuit closure during less than 1/3rd operating voltage of the voltage on the described energy-storage travelling wave tube, described prompting device is opened.
5. circuit on-off tester as claimed in claim 1 is characterized in that, described prompting device is sound and/or light prompt device.
6. circuit on-off tester as claimed in claim 4 is characterized in that, described prompting device is sound and/or light prompt device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122890 CN2690895Y (en) | 2003-12-26 | 2003-12-26 | Line on-and-off detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122890 CN2690895Y (en) | 2003-12-26 | 2003-12-26 | Line on-and-off detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2690895Y true CN2690895Y (en) | 2005-04-06 |
Family
ID=34662030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320122890 Expired - Fee Related CN2690895Y (en) | 2003-12-26 | 2003-12-26 | Line on-and-off detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2690895Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313855A (en) * | 2010-07-01 | 2012-01-11 | 株式会社理光 | Electromagnetic actuator inspection device and image forming apparatus |
| CN102709869A (en) * | 2012-05-23 | 2012-10-03 | 苏州市职业大学 | Short circuit protecting device |
| CN117138265A (en) * | 2023-10-27 | 2023-12-01 | 深圳市宗匠科技有限公司 | Ultrasonic beauty instrument and self-checking method for ultrasonic beauty instrument |
-
2003
- 2003-12-26 CN CN 200320122890 patent/CN2690895Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313855A (en) * | 2010-07-01 | 2012-01-11 | 株式会社理光 | Electromagnetic actuator inspection device and image forming apparatus |
| CN102709869A (en) * | 2012-05-23 | 2012-10-03 | 苏州市职业大学 | Short circuit protecting device |
| CN102709869B (en) * | 2012-05-23 | 2013-11-06 | 苏州市职业大学 | Short circuit protecting device |
| CN117138265A (en) * | 2023-10-27 | 2023-12-01 | 深圳市宗匠科技有限公司 | Ultrasonic beauty instrument and self-checking method for ultrasonic beauty instrument |
| CN117138265B (en) * | 2023-10-27 | 2024-07-16 | 深圳市宗匠科技有限公司 | Ultrasonic beauty instrument and self-checking method for ultrasonic beauty instrument |
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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 |