CN203025338U - Electric power meter testing clamp - Google Patents
Electric power meter testing clamp Download PDFInfo
- Publication number
- CN203025338U CN203025338U CN 201220678560 CN201220678560U CN203025338U CN 203025338 U CN203025338 U CN 203025338U CN 201220678560 CN201220678560 CN 201220678560 CN 201220678560 U CN201220678560 U CN 201220678560U CN 203025338 U CN203025338 U CN 203025338U
- Authority
- CN
- China
- Prior art keywords
- box body
- instrument
- meter
- spring thimble
- testing clamp
- 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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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The utility model discloses an electric power meter testing clamp. A meter is provided with metal terminals. The testing clamp comprises a box body, an upper panel covering an opening at the top of the box body, and spring ejector pins, wherein the spring ejector pins are arranged at the bottom of the box body, are in contact with the metal terminals on the meter, and are connected with a signal source through leads; and a hole same as the meter in size is formed in the upper panel. When being tested, the meter is clamped into the clamp from the hole and then is fixed to the upper panel. Compared with the prior art, the testing clamp is simple in structure and convenient to operate; the working efficiency of meter calibration is enhanced greatly; and simultaneously, by virtue of the testing clamp, a debugging worker is prevented from operating exposed electrified metal terminals, and thus the personnel safety of the meter calibrating worker is better guaranteed.
Description
Technical field
The utility model relates to a kind of electric instrument test fixture.
Background technology
After the completion of standard meter wiring board welding assembly, all will be to the calibration (being commonly called as school zero) of switching on of the hardware of instrument or software, will be by the fixing voltage/current signals of single-phase or three-phase signal source input in instrument, whether the displayed value of test instrumentation is complementary with the signal of signal source output.
At present, be all will pick out on the metal terminal that is fixed on instrument of one one, several next wires from signal source with screwdriver when test instrumentation, the calibration of then switching on.Energising three-phase current, three-phase voltage, adds that power lead, an instrument will connect tens wires nearly on terminal, reduced greatly work efficiency, and tens of wires is easy to the person's of being calibrated wrong, in case can make instrument damage.Exposed connection terminal is easy to be encountered because of carelessness simultaneously, shines into electric shock accidents.
Therefore need that design is a kind of can replace the instrument terminals wiring, handled easily can be guaranteed again to operate completely fixture instrument is tested.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of electric instrument test fixture, to improve the testing efficiency of instrument.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of electric instrument test fixture, has metal terminal on instrument, the open-topped top panel that test fixture comprises box body, cover box body and the spring thimble that contacts with metal terminal on instrument of being used for that is located at the box body bottom, spring thimble is connected with signal source by wire, have a hole that equates with the instrument size in the above on plate, in when test, instrument snap in from this hole and the plate that is fixed in the above on.
Also comprise be used to the insulcrete that described spring thimble is installed, spring thimble also penetrates the length that insulcrete exposes 1cm.
Be provided with the cylindrical conductor that patches for the wire that is connected with signal source on the side of described box body, spring thimble is connected by wire with cylindrical conductor.
The material of described box body is insulating resin.
The utility model adopts technique scheme, compared with prior art, this test fixture is simple in structure, easy to operate, greatly improved the work efficiency of calibrating indicating instrument, this fixture has avoided the commissioning staff to operate exposed live metal terminal simultaneously, and calibrating indicating instrument personnel's personal safety has been had larger guarantee.
Description of drawings
Fig. 1 is the structural representation of test fixture of the present utility model;
Fig. 2 is that the spring thimble of test fixture of the present utility model is installed to the structural representation on insulcrete;
Mark in above-mentioned figure is: 1, top panel; 2, hole; 3, spring thimble; 4, insulcrete.
Embodiment
Be illustrated in figure 1 as a kind of electric instrument test fixture of the present utility model, has metal terminal on instrument, the open-topped top panel 1 that this test fixture comprises box body, cover box body and the spring thimble 3 that contacts with metal terminal on instrument of being used for that is located at the box body bottom, spring thimble 3 is connected with signal source by wire, have a hole 2 that equates with the instrument size in the above on plate 1, in when test, instrument snap in from this hole 2 and the plate 1 that is fixed in the above on.
The material of box body is insulating resin, and box body is rectangle, and its size is 2 times of instrument.Top panel 1 is connected through the hinge on box body, but free-open-close.
As shown in Figure 2, spring thimble 3 is arranged on insulcrete 4, and the material of insulcrete 4 is insulating resin, and its size is slightly larger than the instrument backboard.According to metal terminal quantity and the distribution on the instrument backboard, have the through hole identical with spring thimble 3 thicknesses on insulcrete 4, spring thimble 3 is arranged in through hole and penetrates the length that insulcrete 4 exposes 1cm, is fixed on insulcrete 4 with glue at last.
When test, instrument is snapped in the hole 2 of top panel 1, and plate 1 is installed fixedly card key in the above, is used for fixed instrumentation.Shut the top panel 1 with instrument, the position corresponding according to the instrument metal terminal is fixed on the box body bottom with the spring thimble 3 made together with insulcrete 4, and adjusts and highly make spring thimble 3 and instrument metal terminal close contact.
Stamp successively corresponding circular hole according to signal source output phase amount on the side of box body, and the cylindrical conductor that patches for the signal source wire is installed, spring thimble 3 is connected with wire successively with cylindrical conductor.
The above is exemplarily described the utility model by reference to the accompanying drawings; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or without improving, design of the present utility model and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (4)
1. electric instrument test fixture, has metal terminal on instrument, it is characterized in that: the open-topped top panel that comprise box body, covers box body and the spring thimble that contacts with metal terminal on instrument of being used for that is located at the box body bottom, spring thimble is connected with signal source by wire, have a hole that equates with the instrument size in the above on plate, in when test, instrument snap in from this hole and the plate that is fixed in the above on.
2. electric instrument test fixture according to claim 1, it is characterized in that: also comprise be used to the insulcrete that described spring thimble is installed, spring thimble also penetrates the length that insulcrete exposes 1cm.
3. electric instrument test fixture according to claim 1 is characterized in that: be provided with the cylindrical conductor that patches for the wire that is connected with signal source on the side of described box body, spring thimble is connected by wire with cylindrical conductor.
4. according to claim 1 and 2 or 3 described electric instrument test fixtures, it is characterized in that: the material of described box body is insulating resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678560 CN203025338U (en) | 2012-12-11 | 2012-12-11 | Electric power meter testing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678560 CN203025338U (en) | 2012-12-11 | 2012-12-11 | Electric power meter testing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025338U true CN203025338U (en) | 2013-06-26 |
Family
ID=48649317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220678560 Expired - Fee Related CN203025338U (en) | 2012-12-11 | 2012-12-11 | Electric power meter testing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237679A (en) * | 2021-04-20 | 2021-08-10 | 东莞先导先进科技有限公司 | Thermoelectric refrigerator performance testing device |
-
2012
- 2012-12-11 CN CN 201220678560 patent/CN203025338U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237679A (en) * | 2021-04-20 | 2021-08-10 | 东莞先导先进科技有限公司 | Thermoelectric refrigerator performance testing device |
| CN113237679B (en) * | 2021-04-20 | 2024-05-28 | 东莞先导先进科技有限公司 | Performance testing device for thermoelectric refrigerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |