CN203798908U - Change-over switch for standard resistor verification - Google Patents
Change-over switch for standard resistor verification Download PDFInfo
- Publication number
- CN203798908U CN203798908U CN201420106153.XU CN201420106153U CN203798908U CN 203798908 U CN203798908 U CN 203798908U CN 201420106153 U CN201420106153 U CN 201420106153U CN 203798908 U CN203798908 U CN 203798908U
- Authority
- CN
- China
- Prior art keywords
- knob
- plectrum
- terminal block
- terminal
- lead
- 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
Links
- 238000012795 verification Methods 0.000 title abstract 3
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009987 spinning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The utility model relates to a change-over switch for standard resistors verification, which comprises a switch shell, wherein the right side of the shell is fixedly provided with N terminals of a right wiring terminal block, the lower part of the right wiring terminal block is fixedly provided with a terminal DVM, the upper end of the middle part of the shell is fixedly provided with an upper knob, external contacts of a toggling piece of the upper knob are connected with leads of the N terminals of the right wiring terminal block respectively in the rotating process, the toggling piece of the upper knob is always connected with a lead of the terminal DVM, the left side of the shell is fixedly provided with M terminals of a left wiring terminal block, the lower end of the middle part of the shell is fixedly provided with a lower knob, external contacts of a toggling piece of the lower knob are connected with leads of the M terminals of the left wiring terminal block respectively in the rotating process, and the toggling piece of the lower knob is always connected with a lead of the terminal DVM. The change-over switch for standard resistor verification is reasonable in design, simple and practical in structure and capable of greatly improving the work efficiency.
Description
Technical field
The utility model belongs to electrical measurement field of measuring techniques, especially a kind of measuring resistance calibrating switch.
Background technology
At present, in electric system measuring resistance certificate test, to examine and determine respectively a complete set of 9 measuring resistances, after a calibrating completes, again next measuring resistance is examined and determine, and every resistance has 4 terminals, that is to say that a complete set of 9 resistance need to repeat wiring 36 times, duplication of labour amount is like this larger, has affected work efficiency.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of measuring resistance calibrating switch.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of measuring resistance calibrating switch, comprise switch case, on housing upper surface right side, even interval processed is fixed with N terminal of right connecting terminal block from top to bottom, in right connecting terminal block bottom, be fixed with terminal DVM(digital watch input end), upper surface middle part upper end at housing is fixed with top knob, the plectrum of described top knob rotarily drives top knob plectrum and rotates, the external contact of top knob plectrum is connected with the lead-in wire of N terminal of right connecting terminal block respectively in rotary course, form the corresponding resistor gear of top knob, the inner side of top knob plectrum is connected with the lead-in wire of terminal DVM all the time, in housing upper surface left side, even interval processed is fixed with M terminal of left connecting terminal block from top to bottom, upper surface middle part lower end at housing is fixed with bottom knob, the plectrum of described bottom knob rotarily drives bottom knob plectrum and rotates, the external contact of bottom knob plectrum is connected with the lead-in wire of M terminal of left connecting terminal block respectively in rotary course, form the corresponding resistor gear of bottom knob, the inner side of bottom knob plectrum is connected with the lead-in wire of terminal DVM all the time.
And described top knob and bottom knob are provided with neutral.
And the terminal of described right connecting terminal block has 9, the terminal of described left connecting terminal block has 9.
Advantage of the present utility model and good effect are
The utility model is reasonable in design, simple and practical, and application can be increased work efficiency after the utility model greatly, can shorten setting up time and be original 1/9.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of the utility model outside;
Fig. 2 is the wiring diagram of the utility model top knob and terminal;
Fig. 3 is the wiring diagram of the utility model bottom knob and terminal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is implemented to be further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of measuring resistance calibrating switch, as shown in Figure 1, comprise switch case 1, the terminal Rn1 that even interval processed is fixed with right connecting terminal block 2 from top to bottom on housing upper surface right side is to terminal Rn9, in the bottom of terminal Rn9, be fixed with terminal DVM(digital watch input end), upper surface middle part upper end at housing is fixed with top knob 3, as shown in Figure 2, the plectrum 7 of described top knob rotarily drives top knob plectrum 8 and rotates, the external contact of top knob plectrum is connected to the lead-in wire of terminal Rn9 with terminal Rn1 respectively in spinning process, form the corresponding resistor gear of top knob, the inner side of top knob plectrum is connected with the lead-in wire of terminal DVM all the time, the terminal R1 that even interval processed is fixed with left connecting terminal block 6 from top to bottom on the left of housing upper surface is to terminal R9, upper surface middle part lower end at housing is fixed with bottom knob 4, as shown in Figure 3, the plectrum 10 of described bottom knob rotarily drives bottom knob plectrum 9 and rotates, the external contact of bottom knob plectrum is connected to the lead-in wire of terminal R9 with terminal R1 respectively in spinning process, form the corresponding resistor gear of bottom knob, the inner side of bottom knob plectrum is connected with the lead-in wire of terminal DVM all the time.
In concrete enforcement of the present utility model, described top knob and bottom knob are provided with neutral.
Claims (3)
1. a measuring resistance calibrating switch, it is characterized in that: comprise switch case, on housing upper surface right side, even interval processed is fixed with N terminal of right connecting terminal block from top to bottom, in right connecting terminal block bottom, be fixed with number of terminals word table input end, upper surface middle part upper end at housing is fixed with top knob, the plectrum of described top knob rotarily drives top knob plectrum and rotates, the external contact of top knob plectrum is connected with the lead-in wire of N terminal of right connecting terminal block respectively in rotary course, form the corresponding resistor gear of top knob, the inner side of top knob plectrum is connected with the lead-in wire of terminal DVM all the time, in housing upper surface left side, even interval processed is fixed with M terminal of left connecting terminal block from top to bottom, upper surface middle part lower end at housing is fixed with bottom knob, the plectrum of described bottom knob rotarily drives bottom knob plectrum and rotates, the external contact of bottom knob plectrum is connected with the lead-in wire of M terminal of left connecting terminal block respectively in rotary course, form the corresponding resistor gear of bottom knob, the inner side of bottom knob plectrum is connected with the lead-in wire of terminal DVM all the time.
2. measuring resistance calibrating switch according to claim 1, is characterized in that: described top knob and bottom knob are provided with neutral.
3. measuring resistance calibrating switch according to claim 1, is characterized in that: the terminal of described right connecting terminal block has 9, and the terminal of described left connecting terminal block has 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106153.XU CN203798908U (en) | 2014-03-10 | 2014-03-10 | Change-over switch for standard resistor verification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420106153.XU CN203798908U (en) | 2014-03-10 | 2014-03-10 | Change-over switch for standard resistor verification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203798908U true CN203798908U (en) | 2014-08-27 |
Family
ID=51381112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420106153.XU Expired - Fee Related CN203798908U (en) | 2014-03-10 | 2014-03-10 | Change-over switch for standard resistor verification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203798908U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569060A (en) * | 2016-11-01 | 2017-04-19 | 许继集团有限公司 | Branch adjusting instrument applicable to test work of conventional sampling bus protection device |
| CN107196165A (en) * | 2017-07-05 | 2017-09-22 | 国网天津市电力公司电力科学研究院 | Single power supply wave filter changes junction box to multi-path inlet-outlet line |
-
2014
- 2014-03-10 CN CN201420106153.XU patent/CN203798908U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569060A (en) * | 2016-11-01 | 2017-04-19 | 许继集团有限公司 | Branch adjusting instrument applicable to test work of conventional sampling bus protection device |
| CN107196165A (en) * | 2017-07-05 | 2017-09-22 | 国网天津市电力公司电力科学研究院 | Single power supply wave filter changes junction box to multi-path inlet-outlet line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: State Grid Tianjin Electric Power Company Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: State Grid Tianjin Electric Power Company |
|
| 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: 20140827 Termination date: 20190310 |