CN205280822U - Killer switch direct current resistance measurement device - Google Patents
Killer switch direct current resistance measurement device Download PDFInfo
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- CN205280822U CN205280822U CN201520948369.5U CN201520948369U CN205280822U CN 205280822 U CN205280822 U CN 205280822U CN 201520948369 U CN201520948369 U CN 201520948369U CN 205280822 U CN205280822 U CN 205280822U
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- conductive tube
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- pull rod
- rear end
- measuring apparatus
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- 238000005259 measurement Methods 0.000 title abstract description 8
- 238000009434 installation Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 230000003319 supportive effect Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
Killer switch direct current resistance measurement device, the length that electrically conductive barrel's external diameter is less than cylinder dead lever internal diameter and the electrically conductive barrel of plum blossom contact is greater than the length of plum blossom contact, the wall connection of lead wire and electrically conductive barrel rear end, measuring device still includes the supporting shoe of push -and -pull rod and round platform shape, a plurality of opening have been seted up along the circumferencial direction on the lateral wall of electrically conductive barrel front end, push -and -pull rod and supporting shoe all are located the inside just supporting shoe of electrically conductive barrel and are located push -and -pull rod the place ahead, the supporting shoe, the coaxial setting of push -and -pull rod and electrically conductive barrel, the diameter of supporting shoe front end is greater than the diameter less than or equal to electrically conductive barrel's of electrically conductive barrel's internal diameter and rear end internal diameter, the front end of push -and -pull rod and electrically conductive barrel's rear end fixed connection, the rear end of push -and -pull rod is located the electrically conductive barrel outside. Measured data is accurate, and direct current resistance that can accurate reflection killer switch can not lead to the fact the unnecessary loss for power production, but also save numerous and diverse process of dismouting plum blossom contact, simple structure, convenient operation, labour saving and time saving.
Description
Technical field
The utility model belongs to power measurement technical field of tools, it relates to isolating switch switch DC electric resistance measuring apparatus.
Background technology
The safety and reliability of power supply system is had a very important role by the safe and stable operation of isolating switch switch. If the direct current resistance of isolating switch switch is bigger than normal, contact heating will be caused in switch, time serious can initiation fire, therefore, the direct current resistance of isolating switch switch is tested and just becomes very necessary. The method being used for measuring handcart circuit breaker switch DC resistance at present clamps on isolating switch switch a Mume flower contact respectively with two harness clips, lead-in wire is connected with harness clip, what this kind of measuring method was measured is the summation of contact and two Mume flower contact resistance values in switch, measure inaccurate, therefore the DC resistance of isolating switch switch can accurately do not reflected, cause the erroneous judgement to measuring result, unnecessary loss can be caused to electrical production. Talk about accurately if it is intended to measure, Mume flower contact can only be dismantled, again Mume flower contact be loaded onto after having measured, but very loaded down with trivial details during dismounting Mume flower contact, waste time and energy, affect working efficiency.
Summary of the invention
The utility model, in order to overcome the defect of prior art, devises isolating switch switch DC electric resistance measuring apparatus, and take off data is accurate, it is possible to the accurately DC resistance of reflection isolating switch switch.
The concrete technical scheme that the utility model is taked is: isolating switch switch DC electric resistance measuring apparatus, comprise electric installation and lead-in wire, lead-in wire is connected with electric installation, electric installation is connected with the round shape fixed link of the Mume flower contact on isolating switch, it is crucial that: described electric installation comprises conductive tube, the length of round shape fixed link internal diameter and conductive tube that the external diameter of conductive tube is less than Mume flower contact is greater than the length of Mume flower contact, lead-in wire is connected with the outer wall of conductive tube rear end, measuring apparatus also comprises the support block of push-pull rod and truncated cone-shaped, the sidewall of conductive tube front end has along the circumferential direction been offered multiple gap, push-pull rod and support block are all positioned at conductive tube inside and support block and be positioned at push-pull rod front, support block, push-pull rod and conductive tube are coaxially arranged, the diameter of internal diameter and rear end that the diameter supporting block front end is greater than conductive tube is less than or equal to the internal diameter of conductive tube, the front end of push-pull rod is fixedly connected with the rear end of conductive tube, the rear end of push-pull rod is positioned at conductive tube outside.
Described measuring apparatus also comprises locating sleeve, and locating sleeve is arranged in conductive tube and is positioned at and supports block rear, and locating sleeve coaxially arranges with conductive tube and is fixedly connected with, and the front end of push-pull rod is fixedly connected with through locating sleeve with support block.
Described push-pull rod is leading screw, and the inwall of locating sleeve is offered the internal thread mated mutually with leading screw.
On described conductive tube, the quantity of gap is four, and the central angle that the end face of each gap is corresponding is 10 ��, and each gap length along the longitudinal direction is 1:4 with the ratio of the total length of conductive tube.
The diameter of described support block front end is equal with the external diameter of conductive tube, and supporting the diameter of block rear end with the ratio of the internal diameter of conductive tube is 4:5, and support block length vertically is 1:4 with the ratio of the total length of conductive tube.
The rear end of described push-pull rod is fixed with rotating disk, and rotating disk is provided with insulation layer.
Being fixed with connection terminal on the outer wall of described conductive tube rear end, lead-in wire is connected with connection terminal.
The outer wall of described conductive tube rear end is fixed with handle, handle is also provided with insulation layer.
The outer wall of described conductive tube rear end is also provided with insulation layer.
The beneficial effects of the utility model are: inserted by conductive tube and make conductive tube contact directly and in switch in the round shape fixed link of Mume flower contact, what measure like this is just the resistance value of contact in switch, take off data is accurate, can accurately reflect the DC resistance of isolating switch switch, unnecessary loss can not be caused to electrical production, and Mume flower contact need not be dismounted just can record data accurately, eliminate numerous and diverse disassembly process, structure is simple, easy to operate, time saving and energy saving. In addition, push-pull rod is utilized to move to suitable position by supporting block thus the support of the front end of conductive tube opened, what make between conductive tube and plum blossom joint that card connects is more firm, it is convenient for measuring, can effectively prevent conductive tube pine de-and affect normally carrying out of measurement, improve working efficiency, make the data of measurement gained more accurate simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In accompanying drawing, 1 represents lead-in wire, and 2 represent conductive tube, and 3 represent push-pull rod, and 4 represent support block, and 5 represent gap, and 6 represent locating sleeve, and 7 represent rotating disk, and 8 represent connection terminal, and 9 represent handle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated:
Specific embodiment, as shown in Figure 1, isolating switch switch DC electric resistance measuring apparatus, comprise electric installation and lead-in wire 1, lead-in wire 1 is connected with electric installation, electric installation is connected with the round shape fixed link of the Mume flower contact on isolating switch, electric installation comprises conductive tube 2, the length of round shape fixed link internal diameter and conductive tube 2 that the external diameter of conductive tube 2 is less than Mume flower contact is greater than the length of Mume flower contact, lead-in wire 1 is connected with the outer wall of conductive tube 2 rear end, measuring apparatus also comprises the support block 4 of push-pull rod 3 and truncated cone-shaped, the sidewall of conductive tube 2 front end has along the circumferential direction been offered multiple gap 5, push-pull rod 3 and support block 4 are all positioned at conductive tube 2 inside and support block 4 and be positioned at push-pull rod 3 front, support block 4, push-pull rod 3 and conductive tube 2 are coaxially arranged, the diameter of internal diameter and rear end that the diameter supporting block 4 front end is greater than conductive tube 2 is less than or equal to the internal diameter of conductive tube 2, the front end of push-pull rod 3 is fixedly connected with the rear end of conductive tube 2, it is outside that the rear end of push-pull rod 3 is positioned at conductive tube 2. under the prerequisite that need not dismount Mume flower contact, can accurately measure the DC resistance of isolating switch switch, structure is simple, easy to operate, time saving and energy saving, it is to increase working efficiency.
As to further improvement of the utility model, measuring apparatus also comprises locating sleeve 6, locating sleeve 6 is arranged in conductive tube 2 and is positioned at and supports block 4 rear, locating sleeve 6 coaxially arranges with conductive tube 2 and is fixedly connected with, the front end of push-pull rod 3 is fixedly connected with through locating sleeve 6 with support block 4, locating sleeve 6 plays a supportive role, and prevents supporting block 4 and skew occurs and affects between conductive tube 2 and Mume flower contact the compactness contacted.
As to further improvement of the utility model, push-pull rod 3 is leading screw, the inwall of locating sleeve 6 is offered the internal thread mated mutually with leading screw, locating sleeve 6 can also be nut, and locating sleeve 6 is while playing a supportive role, it is also possible to forms screw thread locking with push-pull rod 3 and coordinates, prevent push-pull rod 3 movable and affect the dynamics blocked between conductive tube 2 and Mume flower contact and connect, structure is simple, convenient to operation, time saving and energy saving.
As to further improvement of the utility model, the quantity of gap 5 is too many, area is too big, the intensity of conductive tube 2 entirety can be affected, the quantity of gap 5 very little, area too little, push-and-pull support block 4 by conductive tube 2 front end support open time regulation range too little, can not effectively play snap action, so, the quantity of gap 5 on conductive tube 2 is set to four, and the central angle that the end face of each gap 5 is corresponding is 10 ��, and each gap 5 length along the longitudinal direction is 1:4 with the ratio of the total length of conductive tube 2.
As to further improvement of the utility model, the diameter and the length that support block 4 are too big, use the many intensity that can reduce conductive tube 2 of number of times, and can not effectively support and convince torch 2 by patient analysis, even in use can not insert in the round shape fixed link of Mume flower contact. The diameter and the length that support block 4 are too little, scope conductive tube 2 support opened is too little, the tight effect of card can not be played well, so, the diameter supporting block 4 front end is equal with the external diameter of conductive tube 2, supporting the diameter of block 4 rear end with the ratio of the internal diameter of conductive tube 2 is 4:5, and support block 4 length vertically is 1:4 with the ratio of the total length of conductive tube 2.
As to further improvement of the utility model, the rear end of push-pull rod 3 is fixed with rotating disk 7, and rotating disk 7 is provided with insulation layer, holding rotating disk 7, the position of convenient adjustment push-pull rod 3, insulation layer plays protective effect, operator are avoided to be arrived by electricity so that more safe and reliable during operation.
As to further improvement of the utility model, the outer wall of conductive tube 2 rear end being fixed with connection terminal 8, lead-in wire 1 is connected with connection terminal 8, convenient and swift, time saving and energy saving during dismounting lead-in wire 1.
As to further improvement of the utility model, the outer wall of conductive tube 2 rear end is fixed with handle 9, handle 9 is also provided with insulation layer, convenient during plug conductive tube 2, safer.
As to further improvement of the utility model, the outer wall of conductive tube 2 rear end is also provided with insulation layer, improves measuring apparatus safety and reliability in use further.
The utility model is in the specific implementation: is inserted by conductive tube 2 and makes conductive tube 2 contact directly and in switch in the round shape fixed link of Mume flower contact, then hold rotating disk 7 to rotate, rotating disk 7 drives push-pull rod 3 to move backward, support block 4 the front end support of conductive tube 2 to be opened, conductive tube 2 firmly is connected together with the round shape fixed link of Mume flower contact, what measure like this is just the resistance value of contact in switch, take off data is accurate, can accurately reflect the DC resistance of isolating switch switch, unnecessary loss can not be caused to electrical production, structure is simple, easy to operate, time saving and energy saving. in addition, block between the round shape fixed link of conductive tube 2 and plum blossom joint and connect, be convenient for measuring, can effectively prevent conductive tube 2 pine de-and affect normally carrying out of measurement, improve working efficiency, make conductive tube 2 be in close contact with contact in switch simultaneously, the data measuring gained are more accurate.
Provide some experimental datas below, as shown in table 1:
From the data in table 1, the data that in the utility model, measuring apparatus records are higher than the accuracy that existing harness clip measures gained data, closer to theoretical resistance, can accurately reflect the DC resistance of isolating switch switch, unnecessary loss can not be caused to electrical production, and Mume flower contact need not be dismounted just can record data accurately, eliminate numerous and diverse disassembly process, structure is simple, easy to operate, time saving and energy saving. Push-pull rod is utilized to move to suitable position by supporting block thus the support of the front end of conductive tube opened, what make between conductive tube and plum blossom joint that card connects is more firm, it is convenient for measuring, can effectively prevent conductive tube pine de-and affect normally carrying out of measurement, improve working efficiency, make the data of measurement gained more accurate simultaneously.
Table 1 (unit: �� ��)
| Isolating switch switch sequence number | Theoretical resistance | Measuring apparatus gained data | Harness clip gained data |
| 1 | 40 | 40.1 | 85.1 |
| 2 | 40 | 40.5 | 85.7 |
| 3 | 40 | 40.3 | 83.2 |
| 4 | 40 | 39.9 | 80.1 |
| 5 | 40 | 40.4 | 84.2 |
| 6 | 40 | 41.7 | 80.7 |
Claims (9)
1. isolating switch switch DC electric resistance measuring apparatus, comprise electric installation and lead-in wire (1), lead-in wire (1) is connected with electric installation, electric installation is connected with the round shape fixed link of the Mume flower contact on isolating switch, it is characterized in that: described electric installation comprises conductive tube (2), the length of round shape fixed link internal diameter and conductive tube (2) that the external diameter of conductive tube (2) is less than Mume flower contact is greater than the length of Mume flower contact, lead-in wire (1) is connected with the outer wall of conductive tube (2) rear end, measuring apparatus also comprises the support block (4) of push-pull rod (3) and truncated cone-shaped, the sidewall of conductive tube (2) front end has along the circumferential direction been offered multiple gap (5), push-pull rod (3) and support block (4) are all positioned at conductive tube (2) inside and support block (4) and be positioned at push-pull rod (3) front, support block (4), push-pull rod (3) and conductive tube (2) are coaxially arranged, the diameter of internal diameter and rear end that the diameter supporting block (4) front end is greater than conductive tube (2) is less than or equal to the internal diameter of conductive tube (2), the front end of push-pull rod (3) is fixedly connected with the rear end of conductive tube (2), it is outside that the rear end of push-pull rod (3) is positioned at conductive tube (2).
2. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterized in that: described measuring apparatus also comprises locating sleeve (6), locating sleeve (6) is arranged in conductive tube (2) and is positioned at and supports block (4) rear, locating sleeve (6) coaxially arranges with conductive tube (2) and is fixedly connected with, and the front end of push-pull rod (3) is fixedly connected with through locating sleeve (6) with support block (4).
3. isolating switch switch DC electric resistance measuring apparatus according to claim 2, it is characterised in that: described push-pull rod (3) is leading screw, and the inwall of locating sleeve (6) offers the internal thread mated mutually with leading screw.
4. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterized in that: the quantity of the upper gap (5) of described conductive tube (2) is four, the central angle that the end face of each gap (5) is corresponding is 10 ��, and the ratio of the total length of each gap (5) length along the longitudinal direction and conductive tube (2) is 1:4.
5. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterized in that: the diameter of described support block (4) front end is equal with the external diameter of conductive tube (2), the ratio of the internal diameter supporting diameter and the conductive tube (2) of block (4) rear end is 4:5, and the ratio of the total length of support block (4) length vertically and conductive tube (2) is 1:4.
6. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterised in that: the rear end of described push-pull rod (3) is fixed with rotating disk (7), and rotating disk is provided with insulation layer on (7).
7. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterized in that: be fixed with connection terminal (8) on the outer wall of described conductive tube (2) rear end, lead-in wire (1) is connected with connection terminal (8).
8. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterised in that: being fixed with handle (9) on the outer wall of described conductive tube (2) rear end, handle is also provided with insulation layer on (9).
9. isolating switch switch DC electric resistance measuring apparatus according to claim 1, it is characterised in that: the outer wall of described conductive tube (2) rear end is also provided with insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948369.5U CN205280822U (en) | 2015-11-25 | 2015-11-25 | Killer switch direct current resistance measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520948369.5U CN205280822U (en) | 2015-11-25 | 2015-11-25 | Killer switch direct current resistance measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205280822U true CN205280822U (en) | 2016-06-01 |
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ID=56065386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520948369.5U Withdrawn - After Issue CN205280822U (en) | 2015-11-25 | 2015-11-25 | Killer switch direct current resistance measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205280822U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388362A (en) * | 2015-11-25 | 2016-03-09 | 国家电网公司 | Breaker switch direct current resistance measuring device |
-
2015
- 2015-11-25 CN CN201520948369.5U patent/CN205280822U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388362A (en) * | 2015-11-25 | 2016-03-09 | 国家电网公司 | Breaker switch direct current resistance measuring device |
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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: 20160601 Effective date of abandoning: 20180316 |
|
| AV01 | Patent right actively abandoned |