CN203965506U - Pressing plate voltage measuring apparatus - Google Patents
Pressing plate voltage measuring apparatus Download PDFInfo
- Publication number
- CN203965506U CN203965506U CN201420413294.6U CN201420413294U CN203965506U CN 203965506 U CN203965506 U CN 203965506U CN 201420413294 U CN201420413294 U CN 201420413294U CN 203965506 U CN203965506 U CN 203965506U
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- China
- Prior art keywords
- pressing plate
- metal watch
- measuring apparatus
- bar
- reometer
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- Expired - Lifetime
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- 239000002184 metal Substances 0.000 claims abstract description 52
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 238000002955 isolation Methods 0.000 claims abstract description 20
- 238000005259 measurement Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The application discloses a kind of pressing plate voltage measuring apparatus, comprise: two metal watch bars, two levers and a watchcase, two metal watch bars are arranged on respectively the isolation part of two levers, to be kept apart by two isolation parts, make two metal watch bars at measuring state or state of nature all can not contact, thereby effectively avoided causing because of two metal watch bars contacts the appearance of pressing plate short circuit situation.
Description
Technical field
The utility model relates to voltage measurement technical field, in particular, relates to a kind of pressing plate voltage measuring apparatus.
Background technology
Pressing plate voltage measurement when grid switching operation is used as a servant is again one of modal step in power transformation operation post, generally before multiple labour operated clamp, needs with pointer multimeter, output clamping both end voltage to be measured.
But survey crew, when measuring, due to reasons such as carelessness, errors, is easy to the positive and negative table bar of pointer multimeter to hang together, and causes pressing plate short circuit by mistake.
Utility model content
In view of this, the utility model provides a kind of pressing plate voltage measuring apparatus, to solve the hidden danger of pressing plate shorted on both ends.
A pressing plate voltage measuring apparatus, comprising: two metal watch bars, two levers and a watchcase;
Two described levers are hinged, the isolation part that described in each, the center of rotation two ends of lever are respectively holding part and described metal watch bar is installed, and described watchcase is fixed on a described lever and with two described metal watch bars and is electrically connected to.
Preferably, described metal watch bar is arranged on the center of described isolation part.
Preferably, described metal watch bar comprises: the first table bar and the second table bar;
Described the first table bar is vertical with described the second table bar, and one end of described the first table bar is arranged on described isolation part.
Preferably, the metal watch bar that described metal watch bar is copper material.
Preferably, also comprise: torsionspring;
Described torsionspring is connected between two described holding parts.
Preferably, two levers that described lever is plastic material.
Preferably, described watchcase is provided with voltage display screen.
Preferably, in described watchcase, be provided with the DC voltage measurement loop being connected with two described metal watch bars respectively.
Preferably, described DC voltage measurement loop comprises: reometer, electric capacity, adjustable resistance and divider resistance;
The output terminal of described reometer connects negative terminal metal watch bar, and the input end of described reometer connects anode metal watch bar by the described adjustable resistance being connected in series, described divider resistance;
The positive plate of described electric capacity connects the input end of described reometer, and the negative plate of described electric capacity connects the output terminal of described reometer.
Preferably, also comprise: the first diode and the second diode;
The output terminal of reometer described in the anodic bonding of described the first diode, the negative electrode of described the first diode connects the input end of described reometer;
The input end of reometer described in the anodic bonding of described the second diode, the negative electrode of described the second diode connects the output terminal of described reometer.
From above-mentioned technical scheme, can find out, the utility model provides a kind of pressing plate voltage measuring apparatus, comprise: two metal watch bars, two levers and a watchcase, two metal watch bars are arranged on respectively the isolation part of two levers, to be kept apart by two isolation parts, make two metal watch bars at measuring state or state of nature all can not contact, thereby effectively avoided causing because of two metal watch bars contacts the appearance of pressing plate short circuit situation.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, other accompanying drawing can also be provided according to the accompanying drawing providing.
Fig. 1 is the structural representation of the disclosed a kind of pressing plate voltage measuring apparatus of the utility model embodiment;
Fig. 2 is the circuit diagram in the disclosed a kind of DC voltage measurement of the utility model embodiment loop.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of pressing plate voltage measuring apparatus, to solve the hidden danger of pressing plate shorted on both ends.
Referring to Fig. 1, the structural representation of the disclosed a kind of pressing plate voltage measuring apparatus of the utility model embodiment, comprising: two metal watch bars 11, two levers 12 and watchcasees 13;
Wherein:
Two levers 12 are hinged, the isolation part 123 that center of rotation 121 two ends of each lever 12 are respectively holding part 122 and metal watch bar 11 is installed, and watchcase 13 is fixed on a lever 12 and with two metal watch bars 11 and is electrically connected to.
The using method of pressing plate voltage measuring apparatus is specific as follows:
When measuring pressure plate voltage, the holding part 122 of pressing two levers 12 opens two metal watch bars 11, and two metal watch bars 11 are inserted between the upper and lower cylinder of pressing plate with measuring pressure plate both end voltage, now, shows the magnitude of voltage of pressing plate on watchcase 13.
It should be noted is that, two isolation parts 123 have certain thickness, to keep apart being arranged on respectively two metal watch bars 11 on isolation part 123.
In summary it can be seen, the utility model is by being arranged on two metal watch bars 11 isolation part 123 of two levers 12, realized the mutual isolation of two metal watch bars 11, make two metal watch bars 11 at measuring state or state of nature all can not contact, thereby effectively avoided causing because of 11 contacts of two metal mark posts the appearance of pressing plate short circuit situation.
Secondly, the utility model can be realized single one-handed performance, adopt compared to existing technology multimeter to need operated by two people (because the positive and negative table bar line of multimeter is short, during measurement, need a people to be responsible for positive and negative table bar, one people is responsible for lifting the watchcase of multimeter), the utility model has improved measurement efficiency greatly.
Finally, because the utility model only designs for voltage measurement, therefore, compare multimeter and possess voltage measurement, current measurement and resistance measurement simultaneously, the utility model measuring circuit is greatly simplified, thereby whole measurement mechanism volume is little, weigh light.
Preferably, metal watch bar 11 is arranged on the center of isolation part 123.Certainly, metal watch bar 11 also can be arranged on the non-central location of isolation part 123, but need to guarantee that two metal watch bars 11 123 do not contact when closed two isolation parts.
Preferably, two metal watch bars 11 in the utility model all become " L-type ", and specifically referring to Fig. 1, metal watch bar 11 comprises: the first table bar 111 and the second table bar 112, the first table bar 111 is vertical with the second table bar 112, and the insertion isolation part, one end 123 of the first table bar 111.
The metal watch bar 11 that adopts " L-type " inserts the second table bar 112 and can realize the measurement to plug-in pressing plate voltage between the upper and lower cylinder of pressing plate, and meanwhile, the metal watch bar 11 of " L-type " also can be realized the measurement to the pressing plate voltage of sheet type.
When the metal watch bar 11 of " L-type " can also guarantee to measure, the position of pressing plate voltage measuring apparatus is vertical with pressing plate all the time, thereby the position level of needle dial is convenient to reading.
Wherein, for making metal watch bar 11 have good electric conductivity, metal watch bar 11 can adopt the metal watch bar of copper material.
It should be noted that, the material of two levers 12 is insulation material, preferably plastic material.
Suppose in Fig. 1, the lever 12 being positioned at above becomes upper lever, and the lever 12 being positioned at is below lower lever, and going up lever can be with axle folding in certain angle, and watchcase 13 is fixed on lower lever.
Wherein, for realizing the folding of two levers 12, between two levers 12, connect a torsionspring.Now, upper lever is due to the effect of torsionspring elastic force, when not measuring in lower lever in maximum opening.
Wherein, on watchcase 13, voltage display screen is set.
It should be noted that, be provided with DC voltage measurement loop in watchcase 13, therefore, metal watch bar 11 inserts the isolation part 123 of lever 12, and by the lead-in wire in lever 12, is connected on the both positive and negative polarity in the DC voltage measurement loop in watchcase 13.
Referring to Fig. 2, the circuit diagram in the disclosed a kind of DC voltage measurement of the utility model embodiment loop, comprising: reometer μ A, capacitor C, adjustable resistance R
lwith divider resistance R;
Wherein:
The output terminal of reometer μ A connects negative terminal metal watch bar (not shown in Fig. 2), and reometer μ A is by the adjustable resistance R being connected in series
l, divider resistance R connects anode metal watch bar;
The positive plate of capacitor C connects the input end of reometer μ A, and the negative plate of capacitor C connects the output terminal of reometer μ A.
The effect in DC voltage measurement loop is that tested electric weight is converted in the full deflection current that is suitable for gauge outfit requirement, and the essence of DC voltage measurement is bleeder circuit.
Bleeder circuit is that tested high voltage is transformed into the required low pressure of gauge outfit by divider resistance R dividing potential drop, and the method that general employing increases the resistance value of divider resistance R reaches the object of range extension.
Capacitor C in the present embodiment mainly plays damping action, also plays a protective role simultaneously.
Wherein, the value of capacitor C can be 47nF.The value of divider resistance R can be 2.5M Ω.
For further optimizing above-described embodiment, also comprise: the first diode D1 and the second diode D2;
The output terminal of the anodic bonding reometer μ A of the first diode D1, the negative electrode of the first diode D1 connects the input end of reometer μ A;
The input end of the anodic bonding reometer μ A of the second diode D2, the negative electrode of the second diode D2 connects the output terminal of reometer μ A.
The gauge outfit that the first diode D1 and the second diode D2 are connected in parallel with protective current table μ A is not burned.
It should be noted that, the application, for convenience of reading, changes gauge outfit into voltage display screen, directly shows pressing plate magnitude of voltage.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a pressing plate voltage measuring apparatus, is characterized in that, comprising: two metal watch bars, two levers and a watchcase;
Two described levers are hinged, the isolation part that described in each, the center of rotation two ends of lever are respectively holding part and described metal watch bar is installed, and described watchcase is fixed on a described lever and with two described metal watch bars and is electrically connected to.
2. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, described metal watch bar is arranged on the center of described isolation part.
3. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, described metal watch bar comprises: the first table bar and the second table bar;
Described the first table bar is vertical with described the second table bar, and one end of described the first table bar is arranged on described isolation part.
4. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, the metal watch bar that described metal watch bar is copper material.
5. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, also comprises: torsionspring;
Described torsionspring is connected between two described holding parts.
6. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, two levers that described lever is plastic material.
7. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, described watchcase is provided with voltage display screen.
8. pressing plate voltage measuring apparatus according to claim 1, is characterized in that, is provided with the DC voltage measurement loop being connected with two described metal watch bars respectively in described watchcase.
9. pressing plate voltage measuring apparatus according to claim 8, is characterized in that, described DC voltage measurement loop comprises: reometer, electric capacity, adjustable resistance and divider resistance;
The output terminal of described reometer connects negative terminal metal watch bar, and the input end of described reometer connects anode metal watch bar by the described adjustable resistance being connected in series, described divider resistance;
The positive plate of described electric capacity connects the input end of described reometer, and the negative plate of described electric capacity connects the output terminal of described reometer.
10. pressing plate voltage measuring apparatus according to claim 9, is characterized in that, also comprises: the first diode and the second diode;
The output terminal of reometer described in the anodic bonding of described the first diode, the negative electrode of described the first diode connects the input end of described reometer;
The input end of reometer described in the anodic bonding of described the second diode, the negative electrode of described the second diode connects the output terminal of described reometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413294.6U CN203965506U (en) | 2014-07-24 | 2014-07-24 | Pressing plate voltage measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420413294.6U CN203965506U (en) | 2014-07-24 | 2014-07-24 | Pressing plate voltage measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203965506U true CN203965506U (en) | 2014-11-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420413294.6U Expired - Lifetime CN203965506U (en) | 2014-07-24 | 2014-07-24 | Pressing plate voltage measuring apparatus |
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| Country | Link |
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| CN (1) | CN203965506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291083A (en) * | 2016-10-08 | 2017-01-04 | 国家电网公司 | Portable protection pressing plate voltage check device |
| CN110703157A (en) * | 2019-10-22 | 2020-01-17 | 海鹰企业集团有限责任公司 | Polarity detection device for transducer |
-
2014
- 2014-07-24 CN CN201420413294.6U patent/CN203965506U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106291083A (en) * | 2016-10-08 | 2017-01-04 | 国家电网公司 | Portable protection pressing plate voltage check device |
| CN110703157A (en) * | 2019-10-22 | 2020-01-17 | 海鹰企业集团有限责任公司 | Polarity detection device for transducer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |