CN201130239Y - Multifunctional test pen - Google Patents
Multifunctional test pen Download PDFInfo
- Publication number
- CN201130239Y CN201130239Y CNU2007201308744U CN200720130874U CN201130239Y CN 201130239 Y CN201130239 Y CN 201130239Y CN U2007201308744 U CNU2007201308744 U CN U2007201308744U CN 200720130874 U CN200720130874 U CN 200720130874U CN 201130239 Y CN201130239 Y CN 201130239Y
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- China
- Prior art keywords
- limiting resistance
- current
- current limiting
- contactor
- test contact
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a multifunctional test pen, belonging to the technical field of electrical appliances, which comprises a test contactor, a current limiting resistance and a light-emitting device; wherein the current limiting resistance comprises a first current limiting resistance and a second current limiting resistance; the test contactor comprises a first contactor fixed on one end of the test pen and a second contactor arranged on one end of a flexible wire; one of the first current limiting resistance, the second current limiting resistance, the light-emitting device which are connected in the test pen body in series between the first contactor and the second contactor, and the current limiting resistance is connected with a transfer switch in parallel. The multifunctional test pen has the advantages of compact size, light weight, simple manufacture and low cost, can functions as a multimeter in the fields of AC/DC voltage measurement, calibration of wiring, on-line solenoid valve and valve control circuit, thereby becoming special tools for on-line solenoid valve measurement.
Description
Technical field
The utility model relates to a kind of test pen, and especially a kind of test pen that solenoid valve state and combined-voltage are carried out on-line measurement of being used for belongs to electrician's apparatus technical field.
Background technology
Solenoid valve is used in various robotization occasions more and more as the main executive component of electromechanical integration.When solenoid valve breaks down or in daily spot check is safeguarded, is difficult to the naked eye find out the quality of solenoid valve and this valve control loop, need detect by electric measurement instrument or instrument.
In daily production practices, the tool kind that is used for electric measurement is more.Commonly used have multimeter, an electroprobe etc.But the former volume is big, carries inconvenience, though latter's volume is little, price is low, but function singleness.
The utility model content
The purpose of this utility model is: at above-mentioned detection needs to electric utilities such as solenoid valves, propose a kind of volume multifunctional testing pen small and exquisite, easy to carry.
In order to reach above purpose, multifunctional testing pen of the present utility model comprises test contact, current-limiting resistance and luminescent device, described current-limiting resistance comprises first and second current-limiting resistances, described test contact comprises first contact that is fixed on a body one end and is placed in second contact of flexible wire one end, series connection is placed in first and second current-limiting resistances and the luminescent device in the body, one of described current-limiting resistance change-over switch in parallel between described first and second contacts.
Usually, the action of solenoid valve adhesive is all by controlling the normal battle of output relay.When the output relay coil gets when electric, it is normal makes war closedly, and the coil of solenoid valve gets electric adhesive.In the measurement, when electromagnetic valve coil not electric, be that relay coil is when failing electricly, two test contact respectively with normal two end in contact of making war of tested solenoid relay valve, this moment since solenoid valve not, the voltage at relay normally open point two ends is the electromotive force in this loop, under normal circumstances measuring pen can be sent normal light, on the contrary these loop existing problems.The solenoid valve of corresponding different operating voltage, as long as it is choose different current-limiting resistances, very convenient by change-over switch.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of the utility model embodiment one.
Fig. 2 is the structural representation of the utility model embodiment two.
Fig. 3 is the utility model profile synoptic diagram.
Embodiment
Embodiment one
The multifunctional testing pen of present embodiment as shown in Figure 1, the first test contact BB is fixed on the front end of body CL, second test contact is placed in the end (referring to Fig. 3) by the flexible wire of drawing in the body, series connection is placed in the first current-limiting resistance R1 and the second current-limiting resistance R2 in the body between two test contact, and be installed in the pen light emitting diode DV of end after one's death, the side of second current-limiting resistance R2 change-over switch K in parallel.
Because solenoid valve CS commonly used has two kinds, a kind of is ∽ 220V voltage, and another kind is-24V voltage.According to these two kinds of electric pressures, and the light emitting diode working current is about (3mA-20mA), generally gets and 5mA is good.The crest voltage of ∽ 220V should be 311/0.005=62.2K Ω so measure the current-limiting resistance of ∽ 220V about 311V, the current-limiting resistance of measurement-24V is 24/0.005=4.8K Ω.4.8KΩ。Because the series connection of two resistance, second current-limiting resistance when therefore measuring the 220V solenoid valve is defined as 58K Ω.During measurement-24V solenoid valve, get final product (solenoid valve of other voltage also can be measured as one sees fit) with change-over switch K short circuit 58K Ω resistance.
The multifunctional testing pen of present embodiment has following function:
1, measure the 220V combined-voltage, K opens with change-over switch, and alternating current is regardless of positive and negative, and direct current will be deceived the table rod and be connect negative pole, and light emitting diode DV is luminous when having voltage to exist.
2, measure online electromagnetic valve coil, when coil was 220V, change-over switch K opened, and at this moment two resistance are the series connection form, and circuit-under-test constitutes the loop by two resistance R 1 of series connection and the coil of R2, light emitting diode DV and solenoid valve.Solenoid valve is in open-circuit condition, because light emitting diode DV working current is a milliampere level, at this moment can not produce voltage drop, so the voltage of tested pilot is the electromotive force voltage of this circuit.
If 3 electromagnetic valve coils and this control loop are normally, light emitting diode DV sends normal light so, and the electric current that flows through in the diode is greatly about about 5mA.When measured electromagnetic valve coil be-during 24V, at this moment change-over switch K closure is measured the loop and is striden across the big resistance R of resistance 2, measuring principle is the same.
This multifunctional testing handwriting is long-pending little, in light weight, making is simple, cost is low, substituting multimeter aspect measurement combined-voltage, school line and online solenoid valve and this valve control loop, can become the specific purpose tool of on-line measurement solenoid valve.
Embodiment two
The multifunctional testing pen of present embodiment as shown in Figure 2, basic circuit is identical with embodiment one, difference is, the other battery E that also is parallel with of described two current-limiting resistances, described change-over switch K also has the 3rd switching position that disconnects two current-limiting resistances and connect battery except having two original switching positions.3 is fuses among the figure.Therefore, except above-mentioned functions, can also realize:
4, correcting line machine function: constituted the loop by the lead in school by test contact → battery → light emitting diode → another test contact → lead, if lead is normal, at this moment light emitting diode sends light.
Therefore has more test function.In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (3)
1, a kind of multifunctional testing pen, comprise test contact, current-limiting resistance and luminescent device, it is characterized in that: described current-limiting resistance comprises first and second current-limiting resistances, described test contact comprises first test contact that is fixed on a body one end and is placed in second test contact of flexible wire one end, series connection is placed in first and second current-limiting resistances and the luminescent device in the body, one of described current-limiting resistance change-over switch in parallel between described first and second test contact.
2, according to the described multifunctional testing pen of claim 1, it is characterized in that: the other battery that is parallel with of described two current-limiting resistances, described change-over switch has the switching position that disconnects two current-limiting resistances and connect battery.
3, according to claim 1 or 2 described multifunctional testing pens, it is characterized in that: described first test contact is fixed on the front end of a body, described second test contact is placed in the end by the flexible wire of drawing in the body, and described luminescent device is to be installed in the pen light emitting diode of end after one's death.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201308744U CN201130239Y (en) | 2007-12-11 | 2007-12-11 | Multifunctional test pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201308744U CN201130239Y (en) | 2007-12-11 | 2007-12-11 | Multifunctional test pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201130239Y true CN201130239Y (en) | 2008-10-08 |
Family
ID=40018102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201308744U Expired - Fee Related CN201130239Y (en) | 2007-12-11 | 2007-12-11 | Multifunctional test pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201130239Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780312A (en) * | 2019-01-14 | 2019-05-21 | 优利德科技(中国)股份有限公司 | A kind of circuit, device, electroprobe and method detecting DC electromagnetic valve |
-
2007
- 2007-12-11 CN CNU2007201308744U patent/CN201130239Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780312A (en) * | 2019-01-14 | 2019-05-21 | 优利德科技(中国)股份有限公司 | A kind of circuit, device, electroprobe and method detecting DC electromagnetic valve |
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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: 20081008 Termination date: 20101211 |