CN201804026U - Retractable pincer-like galvanometer - Google Patents
Retractable pincer-like galvanometer Download PDFInfo
- Publication number
- CN201804026U CN201804026U CN2010205562712U CN201020556271U CN201804026U CN 201804026 U CN201804026 U CN 201804026U CN 2010205562712 U CN2010205562712 U CN 2010205562712U CN 201020556271 U CN201020556271 U CN 201020556271U CN 201804026 U CN201804026 U CN 201804026U
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- Prior art keywords
- current transformer
- coils
- housing
- expansion link
- pincer
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Abstract
The utility model discloses a retractable pincer-like galvanometer comprising an openable pincer opening, a data display instrument, a retractable rod and a feed through current transformer; the current transformer comprises a pair of coils in which the main bodies are semicircular; the coils are integrally arranged in a shell and are concentric with the circular arc on the shell; one ends of the two coils are provided with a trapezoid boss, and the trapezoid boss is provided with a pin hole hinged with the shell; a pair of coils are oppositely arranged; one ends of the bosses of the two coils are connected through a spring; the pincer opening is formed by two triangular insulating shells which are oppositely arranged, and the insulating shells are respectively fixed with one end of the coils of the current transformer; the middle part of the lower end of the shell is fixed with the retractable rod; and the data display instrument is arranged at the lower end of the retracting rod. Compared with the traditional pincer-like galvanometer, the retractable pincer-like galvanometer is prevented from being contacted with an energized part in a short distance in use process, and has the effects of safety and convenience in use without ascent test or space limitation.
Description
Technical field
The utility model relates to a kind of current measuring device, especially a kind of telescopic pincers type reometer.
Background technology
In the power marketing working site, exist to need measure low presenting a theatrical performance as the last item on a programme through regular meeting and distinguish a load current, so that understand the load condition that transformer, branch line are born, so reometer is necessary equipment.Reometer common in the market and easy to use is a clamp on amperemeter; it does not need measure reometer being inserted after the circuitry cuts shutdown; but its structure comprises the jaw of the housing folding of reometer, the current transformer that is arranged at enclosure interior and data presentation instrument; jaw is positioned at the top of housing; the operating switch of jaw folding places the housing side, and the data presentation instrument then is fixed on lower part of frame.Survey low presenting a theatrical performance as the last item on a programme at card and distinguish in the process of an electric current,, need the tester to pedal just energy measurement of high hand-held reometer because the branch line position is generally higher, use inconvenience, need two people to cooperate when card is surveyed, testing efficiency is low, and with the live part close contact, also dangerous.
The utility model content
The technical problems to be solved in the utility model provides a kind of card that is used for and surveys low presenting a theatrical performance as the last item on a programme when distinguishing electric current, efficient, safe telescopic pincers type reometer during easy to use and test.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of telescopic clamp on amperemeter comprises it is characterized in that the current transformer of jaw, data presentation instrument, housing and the punching of opening and closing type: also comprise expansion link;
Described current transformer is that the coil of a pair of main body semicircular in shape constitutes, its integral body places enclosure interior, and it is concentric with the circular arc place on the housing, the coil lower end is provided with trapezoid boss, described trapezoid boss is provided with the pin-and-hole hinged with described housing, a pair of coil is staggered relatively, and the boss of two coils is connected by spring;
Described jaw is a pair of insulation shell triangular in shape, is fastened in described current transformer upper end respectively;
Described expansion link is more than two joints, and adjacent two the joint between by screwing the insulation tube that can fix, the expansion link upper end is fixed in the lower end of housing, be fixed with the data presentation instrument on the minor details insulation tube of expansion link, described data presentation instrument is to be connected by the telescopic spring formula connecting line in draw-tube inside with current transformer.
Adopt the beneficial effect that technique scheme produced to be: the jaw in the utility model structure is set to the open-and-close mechanism that two relative triangles are formed, and having avoided needs to remove to open jaw with hand in the traditional tong-type ammeter, and is more convenient to operate; Middle part, lower end at housing is provided with expansion link, this expansion link is necessary for the insulation tube of at least two joints and forms, and can fix by screwing between adjacent two joints, realized tester's remote-controlled operation testing tool, avoided the close contact current carrying conductor, safer, and be not subjected to space constraint; Connect data presentation instrument summation current transformer in expansion link inside by telescopic spring formula connecting line, the data presentation instrument has been placed the bottom of expansion link, made things convenient for reading and record of data.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a structure left view of the present utility model;
Fig. 3 is the cut-open view of structured testing part of the present utility model;
Wherein, 1, jaw, 2, housing, 3, expansion link, 4, the data presentation instrument, 5, current transformer, 6, current carrying conductor, 7, pin-and-hole, 8, spring.
Embodiment
Referring to Fig. 1, Fig. 2, the utility model structure comprises the current transformer 5 of jaw 1, data presentation instrument 4, housing 2 and the punching of opening and closing type, it is characterized in that: also comprise expansion link 3;
The coil that described current transformer 5 is a pair of main body semicircular in shape constitutes, its integral body places housing 2 inside, and it is concentric with the circular arc place on the housing 2, the coil lower end is provided with trapezoid boss, described trapezoid boss is provided with the pin-and-hole 7 hinged with described housing 2, a pair of coil is staggered relatively, and the boss of two coils is connected by spring 8;
Described jaw 1 is a pair of insulation shell triangular in shape, is fastened in described current transformer 5 upper ends respectively;
Described expansion link 3 is more than two joints, and adjacent two the joint between by screwing the insulation tube that can fix, expansion link 3 upper ends are fixed in the lower end of housing 2, be fixed with data presentation instrument 4 on the minor details insulation tube of expansion link 3, described data presentation instrument 4 is to be connected by the telescopic spring formula connecting line in draw-tube 3 inside with current transformer 5.
Fig. 3 is the cut-open view to the utility model structured testing part, as can be seen from the figure, when the electric current of the district's current carrying conductor 6 of presenting a theatrical performance as the last item on a programme is hanged down in the needs test, only need expansion link 3 to draw back, jaw 1 part is aimed at current carrying conductor 6, the bottom of roof pressure expansion link 3 firmly, jaw 1 is under the effect of triangle guiding, strut current transformer 5, spring 8 is compressed, and current carrying conductor 6 just enters in the circle of reometer current transformer 5 closures under the effect of spring 8 smoothly, just read the numerical value of electric current on the current carrying conductor this moment on data presentation instrument 4, and record; Finish when test, pull at the bottom of expansion link 3,1 of jaw can strut current transformer 5, makes current carrying conductor 6 break away from reometer, and test is finished.
Claims (1)
1. telescopic clamp on amperemeter comprises it is characterized in that the current transformer (5) of jaw (1), data presentation instrument (4), housing (2) and the punching of opening and closing type: also comprise expansion link (3);
Described current transformer (5) is that the coil of a pair of main body semicircular in shape constitutes, its integral body places housing (2) inside, and it is concentric with the circular arc place on the housing (2), the coil lower end is provided with trapezoid boss, described trapezoid boss is provided with the pin-and-hole (7) hinged with described housing (2), a pair of coil is staggered relatively, and the boss of two coils is connected by spring (8);
Described jaw (1) is a pair of insulation shell triangular in shape, is fastened in described current transformer (5) upper end respectively;
Described expansion link (3) is more than two joints, and adjacent two the joint between by screwing the insulation tube that can fix, expansion link (3) upper end is fixed in the lower end of housing (2), be fixed with data presentation instrument (4) on the minor details insulation tube of expansion link (3), described data presentation instrument (4) is by being connected at the inner telescopic spring formula connecting line of draw-tube (3) with current transformer (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205562712U CN201804026U (en) | 2010-10-12 | 2010-10-12 | Retractable pincer-like galvanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205562712U CN201804026U (en) | 2010-10-12 | 2010-10-12 | Retractable pincer-like galvanometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804026U true CN201804026U (en) | 2011-04-20 |
Family
ID=43873527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205562712U Expired - Lifetime CN201804026U (en) | 2010-10-12 | 2010-10-12 | Retractable pincer-like galvanometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804026U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN103988086A (en) * | 2011-11-02 | 2014-08-13 | 霍尼韦尔国际公司 | Devices and methods for sensing current |
| CN104133104A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN104297550A (en) * | 2014-09-17 | 2015-01-21 | 国家电网公司 | Rod type clip-on current measuring instrument |
| CN107576825A (en) * | 2017-08-21 | 2018-01-12 | 贵州电网有限责任公司 | A kind of reducing direct current, loop resistance test clip |
-
2010
- 2010-10-12 CN CN2010205562712U patent/CN201804026U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012447A (en) * | 2010-10-12 | 2011-04-13 | 邢台供电公司 | Telescopic clip-on ammeter |
| CN103988086A (en) * | 2011-11-02 | 2014-08-13 | 霍尼韦尔国际公司 | Devices and methods for sensing current |
| US9562931B2 (en) | 2011-11-02 | 2017-02-07 | Honeywell International Inc. | Devices and methods for sensing current |
| CN104133104A (en) * | 2014-08-13 | 2014-11-05 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN104133104B (en) * | 2014-08-13 | 2017-04-19 | 国家电网公司 | Novel telescopic type low-voltage tong-type ammeter |
| CN104297550A (en) * | 2014-09-17 | 2015-01-21 | 国家电网公司 | Rod type clip-on current measuring instrument |
| CN107576825A (en) * | 2017-08-21 | 2018-01-12 | 贵州电网有限责任公司 | A kind of reducing direct current, loop resistance test clip |
| CN107576825B (en) * | 2017-08-21 | 2024-01-30 | 贵州电网有限责任公司 | Reducing direct current, return circuit resistance test clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20120418 |