CN203414554U - Volume-adjustable circuit on and off testing device - Google Patents
Volume-adjustable circuit on and off testing device Download PDFInfo
- Publication number
- CN203414554U CN203414554U CN201320396353.9U CN201320396353U CN203414554U CN 203414554 U CN203414554 U CN 203414554U CN 201320396353 U CN201320396353 U CN 201320396353U CN 203414554 U CN203414554 U CN 203414554U
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- Prior art keywords
- gear switch
- bipolar
- adjustable
- test
- circuit
- Prior art date
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- Expired - Fee Related
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- 238000010586 diagram Methods 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model relates to a volume-adjustable circuit on and off testing device. The device possesses a cell, a double-gear switch, an adjustable resistor, a light emitting diode, a buzzer and a bipolar meter pen. The cell, the adjustable resistor, the light emitting diode and a B gear switch of the double-gear switch form a series circuit. An A gear switch of the double-gear switch, the cell, the adjustable resistor, the buzzer and the bipolar meter pen form a series circuit. The bipolar meter pen is a bipolar telescopic meter pen. The device of the utility model can prompt an electric quantity of the cell through brightness of the light emitting diode and determine on or off of a circuit module which needs to be tested through chirping of the buzzer. By using the device of the utility model, manufacturing is simple and operation is simple too; cost is low; a volume is adjustable and the electric quantity of the cell can be prompted; non-professional can make and use the device. The device is suitable for a plurality of occasions. For test points with different distances, the length of the bipolar telescopic meter pen can be adjusted and usage is freely.
Description
Technical field
The utility model relates to the adjustable circuit on off test of a kind of volume device.
Background technology
On electric information product, before electrical testing or during breakdown maintenance, first will check the break-make of its circuit, whether examination cable connects short circuit, open circuit, and whether wiring board welding has the situation of solder skip, rosin joint to produce.At present, all adopt multimeter to detect, need professional to operate and carry out, when the tie point of required detection is more, use multimeter just very convenient, and its value is higher, cannot popularize use.
Formerly patent CN201120287077.3 < < microcircuit break-make high speed tester > > discloses a kind of microcircuit break-make high speed tester, the method is that circuit board is housed in box body, current-limiting resistance, button cell seat are housed on circuit board, hummer are housed on box body, detect interface.Interface can be plugged in crocodile clip or table rod, and power supply is 3V button cell.This device needs professional's making circuit board of drawing separately, and point out without battery electric quantity, in test process, probably because of dead battery, to take for institute's slowdown monitoring circuit obstructed, volume for hummer also cannot regulate, and common crocodile clip or table rod cannot solve the problem of different test point spacing distances especially.
Utility model content
The technical problems to be solved in the utility model is: overcomes the deficiencies in the prior art, the adjustable circuit on off test of a kind of volume device is provided, and simple for production, operate simple and easyly, with low cost, volume is adjustable and can point out battery electric quantity.
The utility model solves the technical scheme that its technical matters adopts: the adjustable circuit on off test of a kind of volume device, there is battery, double gear switch, adjustable resistance, light emitting diode, hummer, bipolar test pencil, the B gear switch of described battery, adjustable resistance, light emitting diode and double gear switch forms series circuit, and the A gear switch of double gear switch and battery, adjustable resistance, hummer, bipolar test pencil form series circuit.
Further, described battery is 9V dry cell.
Further, described bipolar test pencil is bipolar telescopic test pencil.
During use, the B gear switch of double gear switch is first closed, and the series circuit of battery and light emitting diode is connected, and light emitting diode is lighted, and illustrates that battery has electricity.Then the A gear switch closure of double gear switch is started to test, the series circuit of battery and hummer is connected, and touches the two poles of the earth that need test circuit module with bipolar test pencil, if hummer sends tweeting sound, needs the two poles of the earth conducting of test circuit module.
The beneficial effects of the utility model are: the utility model is by the brightness prompting battery electric quantity of light emitting diode, the tweeting sound judgement of hummer needs the break-make of test circuit module, the utility model is simple for production, operate simple and easy, with low cost, volume is adjustable and can point out battery electric quantity, and layman also can make use, is applicable to the proving installation of multiple occasion.For the different test point of distance, bipolar telescopic test pencil length is flexible to be used freely.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is circuit theory diagrams of the present utility model;
Wherein: 1, battery, 2, double gear switch, 3, adjustable resistance, 4, light emitting diode, 5, hummer, 6, bipolar test pencil.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic diagram that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
As shown in Figure 1, the adjustable circuit on off test of a kind of volume device, for testing, need whether conducting of the two poles of the earth of test circuit module, there is battery 1, double gear switch 2, adjustable resistance 3, light emitting diode 4, hummer 5, bipolar test pencil 6, battery 1, adjustable resistance 3, light emitting diode 4 form series circuit with the B gear switch of double gear switch 2, and the A gear switch of double gear switch 2 and battery 1, adjustable resistance 3, hummer 5, bipolar test pencil 6 form series circuit.Battery 1 is 9V dry cell.Bipolar test pencil 6 is bipolar telescopic test pencil.
During use, the B gear switch of double gear switch 2 is first closed, and battery 1 is connected with the series circuit of light emitting diode 4, and light emitting diode 4 is lighted, and illustrates that battery 1 has electricity.Then the A gear switch closure of double gear switch 2 is started to test, battery 1 is connected with the series circuit of hummer 5, with bipolar test pencil 6, touches the two poles of the earth that need test circuit module, if hummer 5 sends tweeting sound, needs the two poles of the earth conducting of test circuit module.
By regulating the resistance of adjustable resistance 3 to change the electric current of the hummer 5 of flowing through, and then realize adjusting hummer 5 volumes.
The adjustable circuit on off test of volume device is the used time not, and the A gear switch of double gear switch 2 and the B gear switch of double gear switch 2 all disconnect, and can effectively prevent battery 1 electric discharge, extends the serviceable life of battery 1.Obvious when dimmed when light emitting diode 4 brightness, need to change in time battery 1.
The utility model is by brightness prompting battery 1 electric weight of light emitting diode 4, the tweeting sound judgement of hummer 5 needs the break-make of test circuit module, adjustable resistance 3 plays metering function on the one hand, on the other hand by regulating the resistance size of adjustable resistance 3, change the size of current of the hummer 5 of flowing through, thereby regulate the volume of hummer 5.Bipolar telescopic test pencil has solved the tie point problem that the long easy winding of common test pencil line fractures and the too short inadequate test interval of common test pencil line is far away.
The utility model is simple for production, operates simple and easyly, with low cost, and volume is adjustable and can point out battery electric quantity, and layman also can make use, is applicable to the proving installation of multiple occasion.By light emitting diode, judge that battery electric quantity replacing is in time in case erroneous judgement needs test circuit module break-make situation.Volume is adjustable makes the utility model applicable equally in quiet or noisy environment, and for the different test point of distance, bipolar telescopic test pencil uses freely.
The above-mentioned foundation desirable embodiment of the present utility model of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this utility model technological thought, carry out various change and modification completely.The technical scope of this utility model is not limited to the content on instructions, must determine its technical scope according to claim scope.
Claims (3)
1. the adjustable circuit on off test of a volume device, it is characterized in that: there is battery (1), double gear switch (2), adjustable resistance (3), light emitting diode (4), hummer (5), bipolar test pencil (6), described battery (1), adjustable resistance (3), light emitting diode (4) form series circuit with the B gear switch of double gear switch (2), and the A gear switch of double gear switch (2) and battery (1), adjustable resistance (3), hummer (5), bipolar test pencil (6) form series circuit.
2. the adjustable circuit on off test of a kind of volume according to claim 1 device, is characterized in that: described battery (1) is 9V dry cell.
3. the adjustable circuit on off test of a kind of volume according to claim 1 device, is characterized in that: described bipolar test pencil (6) is bipolar telescopic test pencil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396353.9U CN203414554U (en) | 2013-07-03 | 2013-07-03 | Volume-adjustable circuit on and off testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396353.9U CN203414554U (en) | 2013-07-03 | 2013-07-03 | Volume-adjustable circuit on and off testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203414554U true CN203414554U (en) | 2014-01-29 |
Family
ID=49977436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396353.9U Expired - Fee Related CN203414554U (en) | 2013-07-03 | 2013-07-03 | Volume-adjustable circuit on and off testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203414554U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966642A (en) * | 2016-10-19 | 2018-04-27 | 国网辽宁省电力有限公司阜新供电公司 | A kind of detection circuit based on alarm technique |
-
2013
- 2013-07-03 CN CN201320396353.9U patent/CN203414554U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966642A (en) * | 2016-10-19 | 2018-04-27 | 国网辽宁省电力有限公司阜新供电公司 | A kind of detection circuit based on alarm technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 21, 2023, the expiration and termination of 39 volumes and 2902 issues of patents Number: 29-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 |