CN205175969U - Three point type insulator vibration detection instruments - Google Patents
Three point type insulator vibration detection instruments Download PDFInfo
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- CN205175969U CN205175969U CN201521042823.7U CN201521042823U CN205175969U CN 205175969 U CN205175969 U CN 205175969U CN 201521042823 U CN201521042823 U CN 201521042823U CN 205175969 U CN205175969 U CN 205175969U
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- 239000012212 insulator Substances 0.000 title claims abstract description 114
- 238000001514 detection method Methods 0.000 title abstract description 15
- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 53
- 239000000523 sample Substances 0.000 claims abstract description 39
- 230000007547 defect Effects 0.000 claims description 47
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 239000004568 cement Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model provides a three point type insulator vibration detection instruments, including insulator spindle and supplementary strutting arrangement, the upper end of insulator spindle is provided with the electrified appearance of detecting a flaw of portable porcelain post insulators, and supplementary strutting arrangement's lower extreme and the electrification of portable porcelain post insulators are detected a flaw appearance or insulator spindle and be connected, examine time measuring when the electrified appearance of detecting a flaw of portable porcelain post insulators to the insulator, supplementary strutting arrangement's upper end and two probes of the electrified appearance of detecting a flaw of portable porcelain post insulators can contact simultaneously the cylinder of insulator. The utility model discloses a three point type insulator vibration detection instruments can obtain believable test result, easy operation, and detection efficiency is high, can conveniently detect the all kinds insulator.
Description
Technical field
The utility model relates to a kind of insulator vibration detecting instrument, particularly a kind of three fulcrum type insulator vibration detecting instrument of energy stable detection insulator.
Background technology
High voltage porcelain bushing is mainly used in the insulating supporting of power transmission and transforming equipment lead-in wire or is used as insulating vessel.Insulator is the electrotechnical porcelain product that high-temperature firing becomes, bad if formula when making is improper, technological process Raw mixes Control for Kiln Temperature in uneven or high-temperature sintering process, all easily forms porcelain piece inherent vice.Insulator, belongs to hard brittle material, does not have fixing type to become ability.And it is combined by cement glue and metal-ware, because the linear expansion coefficient of cement glue, porcelain and metal three kinds of materials is different with coefficient of heat conductivity, when environmental baseline changes, the effect of stress that junction is each other subject to is maximum.In operational process, due to the effect of mechanical load and strong wind, ice and snow etc., in porcelain body or nearly surface can produce small defect, or during some product exports just there is small defect in porcelain body or nearly surface, along with the increase of working time, these small defects may expand rapidly and cause the breakage of insulator, and gently then cause device damage, serious may cause transformer station's shut down accident.In order to promote the safety coefficient of operation of power networks, Non-Destructive Testing work must be carried out to high voltage porcelain bushing, to be in operation the accident of unexpected cracking to prevent insulator.
At present, the detection of insulator can adopt ultrasound wave to carry out, and this method efficiency is lower, and must carry out when interruption maintenance.Because the capital construction set-up time is tight, task large, traditional supercritical ultrasonics technology is adopted to be difficult to realize the census operations to insulator.In addition, ultrasound examination is limited to the experience of operator, and there are some inherent shortcomings, and False Rate is higher.Now, the support insulator vibration detecting instrument based on vibratory drilling method has been promoted and has used, and method of operating is simple, and testing result is good.But due to the textural difference of support insulator and insulator, effect is poor when directly support insulator vibration detecting instrument being used for the detection of insulator, easily occurs that probe slides, probe cannot the series of problems such as reliable contacts insulator cylinder.Installation site again due to high voltage porcelain bushing is higher, and technician cannot confirm probe whether good contact, therefore the credible result degree tested is had a greatly reduced quality.
Utility model content
Easily occur that probe slides to solve when prior art uses support insulator to carry out insulator detection, probe cannot reliable contacts insulator cylinder, and not easily confirm the incredible problem of test result that causes compared with hi-tech personnel due to the installation site of high voltage porcelain bushing, the utility model proposes a kind of three fulcrum type insulator vibration detecting instrument, can prevent from support insulator from carrying out probe when insulator detects to occur sliding or cannot reliable contacts insulator cylinder, avoid the incredible problem of test result, thus realize detecting all kinds insulator easily, detection efficiency is high, simple to operate.
The utility model solves the technical scheme that its technical matters adopts: a kind of three fulcrum type insulator vibration detecting instrument, comprise insulating bar and auxiliary support apparatus, the upper end of insulating bar is provided with portable porcelain pillar insulator electrified defect detector, and the lower end of auxiliary support apparatus is connected with portable porcelain pillar insulator electrified defect detector or insulating bar; When portable porcelain pillar insulator electrified defect detector detects insulator, the upper end of auxiliary support apparatus can contact the cylinder of described insulator with two probes of portable porcelain pillar insulator electrified defect detector simultaneously.
Insulating bar is vertically arranged, and auxiliary support apparatus comprises assist probes and spiral expanding bar, is arranged with spring outside spiral expanding bar, and assist probes is connected with the upper end of spiral expanding bar; When the lower end of auxiliary support apparatus is connected with portable porcelain pillar insulator electrified defect detector, the lower end of spiral expanding bar is connected with portable porcelain pillar insulator electrified defect detector; When the lower end of auxiliary support apparatus is connected with insulating bar, the lower end of spiral expanding bar is connected with insulating bar.
The length of assist probes is greater than the length of probe, and the diameter of spring is less than the diameter of the spring of portable porcelain pillar insulator electrified defect detector, the elasticity coefficient of spring is greater than the elasticity coefficient of the spring of portable porcelain pillar insulator electrified defect detector, the external diameter of spiral expanding bar is less than the external diameter of the spiral expanding bar of portable porcelain pillar insulator electrified defect detector, and assist probes upward.
Upward, when the lower end of auxiliary support apparatus is connected with insulating bar, the lower end of spiral expanding bar is connected to the middle part of insulating bar to two probes of portable porcelain pillar insulator electrified defect detector by auxiliary connecting link.
Auxiliary connecting link has the flat segments, segmental arc and the inserting section that connect successively from top to bottom, and auxiliary support apparatus is connected with the upper end of described flat segments, and described flat segments is parallel with described inserting section, and described inserting section is flat structure.
The middle part of insulating bar is fixedly installed fastener, and auxiliary support apparatus is positioned at the top of fastener, and the lower end of auxiliary connecting link is connected with insulating bar by fastener, and auxiliary connecting link can rotate relative to fastener.
Fastener is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector, the lower end of auxiliary connecting link is inserted in the cavity of fastener, the lower end of auxiliary connecting link is provided with the first screw, a side perisporium of fastener is provided with the second screw, assists between connecting link and fastener and realizes being connected with the second screw and nut screw connection through the first screw by stud.
The described side perisporium of fastener is also provided with multiple switching hole, switch the top that hole is positioned at the second screw, the curved arrangement in multiple switching holes, auxiliary connecting link is provided with the clamp button of the spring that can be arranged in and switch hole, clamp button of the spring is positioned at the top of the first screw, switches hole equal with the distance between the first screw with the Distance geometry clamp button of the spring between the second screw; When rotating auxiliary connecting link, clamp button of the spring can be arranged in switching holes different in multiple switching hole.
Fastener is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector, the lower end of auxiliary connecting link is inserted in the cavity of fastener, the lower end of auxiliary connecting link is provided with the first screw, a side perisporium of fastener is provided with fan-shaped hand and dials switch plate, hand is dialled switch plate and is provided with the second screw, assist between connecting link and fastener and realize being connected with the second screw and nut screw connection through the first screw by stud, hand is dialled on switch plate and is also provided with multiple switching hole, switch the top that hole is positioned at the second screw, the curved arrangement in multiple switching holes, auxiliary connecting link is provided with the clamp button of the spring that can be arranged in and switch hole, clamp button of the spring is positioned at the top of the first screw, switch hole equal with the distance between the first screw with the Distance geometry clamp button of the spring between the second screw, when rotating auxiliary connecting link, clamp button of the spring can be arranged in switching holes different in multiple switching hole.
Fastener is provided with at least one Quick hoop, and fastener is fixedly connected with insulating bar by Quick hoop.
The beneficial effects of the utility model are: by installing auxiliary support apparatus additional on the basis of portable support insulator electrified defect detector, utilize leg-of-mutton stability and " determining face at 3 " principle, make portable support insulator electrified defect detector probe can with insulator cylinder reliable contacts, believable test result can be obtained, simple to operate, detection efficiency is high, can detect all kinds insulator easily.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of three fulcrum type insulator vibration detecting instrument of the present utility model;
Fig. 2 is the schematic front view of three fulcrum type insulator vibration detecting instrument of the present utility model;
Fig. 3 is the structural representation of insulating bar of the present utility model;
Fig. 4 is that hand is dialled switch plate and is arranged at structural representation on fastener;
Fig. 5 is the schematic side view of fastener.
Description of reference numerals:
1, insulating bar, 2, fastener, 3, hand dials switch plate, 4, auxiliary connecting link, 5, portable support insulator electrified defect detector, 51, probe, 6, auxiliary support apparatus, 61, assist probes, 62, spring, 63, spiral expanding bar, 7, clamp button of the spring, the 8, first screw, 9, stud, 10, nut, 11, switch hole, 12, the second screw, 13, Quick hoop.
Embodiment
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and embodiment of the present utility model is described.
As depicted in figs. 1 and 2, the utility model provides a kind of three fulcrum type insulator vibration detecting instrument, comprise insulating bar 1 and auxiliary support apparatus 6, the upper end of insulating bar 1 is provided with portable porcelain pillar insulator electrified defect detector 5, and the lower end of auxiliary support apparatus 6 is connected with portable porcelain pillar insulator electrified defect detector 5 or insulating bar 1; When portable porcelain pillar insulator electrified defect detector 5 pairs of insulators detect, the upper end of auxiliary support apparatus 6 can contact the cylinder of described insulator with two probes 51 of portable porcelain pillar insulator electrified defect detector 5 simultaneously.
Three fulcrum type insulator vibration detecting instrument of the present utility model, installed auxiliary support apparatus 6 additional on the basis of original portable porcelain pillar insulator electrified defect detector 5, triangle is formed at the cylinder of described insulator to make two probes 51 of the upper end of auxiliary support apparatus 6 and portable porcelain pillar insulator electrified defect detector 5, utilize the principle of leg-of-mutton stability and " determining face at 3 ", make probe 51 can with the cylinder reliable contacts of described insulator.Utilize three fulcrum type insulator vibration detecting instrument of the present utility model, user of service only needs hand-held insulating bar 1, and make the cylinder close contact of probe 51 and described insulator and keep certain hour, believable test result can be obtained, simple to operate, detection efficiency is high, can detect all kinds insulator easily.
In a feasible embodiment, insulating bar 1 is vertically arranged, and auxiliary support apparatus 6 comprises assist probes 61 and spiral expanding bar 63, is arranged with spring 62 outside spiral expanding bar 63, and assist probes 61 is connected with the upper end of spiral expanding bar 63; When the lower end of auxiliary support apparatus 6 is connected with portable porcelain pillar insulator electrified defect detector 5, the lower end of spiral expanding bar 63 is connected with portable porcelain pillar insulator electrified defect detector 5; As depicted in figs. 1 and 2, when the lower end of auxiliary support apparatus 6 is connected with insulating bar 1, the lower end of spiral expanding bar 63 is connected with insulating bar 1.
Assist probes 61 is arranged upward, compared with the probe 51 of portable porcelain pillar insulator electrified defect detector 5, the length of auxiliary support apparatus 6 assist probes 6 is greater than the length of probe 51, and the diameter of spring 62 is less than the diameter of the spring of portable porcelain pillar insulator electrified defect detector 5, the elasticity coefficient of spring 62 is greater than the elasticity coefficient of the spring of portable porcelain pillar insulator electrified defect detector 5, and the external diameter of spiral expanding bar 63 is less than the external diameter of the spiral expanding bar of portable porcelain pillar insulator electrified defect detector 5.Auxiliary support apparatus 6 also can detect insulator, arranges inductive probe and signal receiver.
In a concrete embodiment, two probes 51 of portable porcelain pillar insulator electrified defect detector 5 upward, when the lower end of auxiliary support apparatus 6 is connected with insulating bar 1, the lower end of spiral expanding bar 63 is connected to the middle part of insulating bar 1 by auxiliary connecting link 4.Specifically, as shown in Figure 2, auxiliary connecting link 4 has the flat segments, segmental arc and the inserting section that connect successively from top to bottom to the structure of auxiliary connecting link 4, and auxiliary support apparatus 6 is connected with the upper end of described flat segments, described flat segments is parallel with described inserting section, and described inserting section is flat structure.
For the ease of supporting probe 51, fastener 2 is fixedly installed at the middle part of insulating bar 1, auxiliary support apparatus 6 is positioned at the top of fastener 2, and the lower end of auxiliary connecting link 4 is connected with insulating bar 1 by fastener 2, and auxiliary connecting link 4 can rotate relative to fastener 2.
In a first embodiment, fastener 2 is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector 5, the lower end of auxiliary connecting link 4 is inserted in the cavity of fastener 2, as shown in Figure 3, the lower end of auxiliary connecting link 4 is provided with the first screw 8, a side perisporium of fastener 2 is provided with the second screw 12, and auxiliary cooperation with nut 10 through the first screw 8 and the second screw 12 by stud 9 between connecting link 4 and fastener 2 realizes being connected.Nut 10 can use wing nut.Particularly, the described side perisporium of fastener 2 is also provided with multiple switching hole 11, switch the top that hole 11 is positioned at the second screw 12, the curved arrangement in multiple switching holes 11, auxiliary connecting link 4 is provided with the clamp button of the spring 7 that can be arranged in and switch hole 11, clamp button of the spring 7 is positioned at the top of the first screw 8, switches hole 11 equal with the distance between the first screw 8 with the Distance geometry clamp button of the spring 7 between the second screw 12; When rotating auxiliary connecting link 4, clamp button of the spring 7 can be arranged in switching holes 11 different in multiple switching hole 11, to meet the auxiliary angle that can form different angles between connecting link 4 and insulating bar 1.
In the second embodiment as shown in Figure 4 and Figure 5, fastener 2 is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector 5, the lower end of auxiliary connecting link 4 is inserted in the cavity of fastener 2, the lower end of auxiliary connecting link 4 is provided with the first screw 8, a side perisporium of fastener 2 is provided with fan-shaped hand and dials switch plate 3, hand is dialled switch plate 3 and is provided with the second screw 12, auxiliary cooperation with nut 10 through the first screw 8 and the second screw 12 by stud 9 between connecting link 4 and fastener 2 realizes being connected, hand is dialled on switch plate 3 and is also provided with multiple switching hole 11, switch the top that hole 11 is positioned at the second screw 12, the curved arrangement in multiple switching holes 11, auxiliary connecting link 4 is provided with the clamp button of the spring 7 that can be arranged in and switch hole 11, clamp button of the spring 7 is positioned at the top of the first screw 8, switch hole 11 equal with the distance between the first screw 8 with the Distance geometry clamp button of the spring 7 between the second screw 12, when rotating auxiliary connecting link 4, clamp button of the spring 7 can be arranged in switching holes 11 different in multiple switching hole 11.
For the ease of the connection between fastener 2 and insulating bar 1 and dismounting, fastener 2 is provided with at least one Quick hoop 13, and fastener 2 is fixedly connected with insulating bar 1 by Quick hoop 13.
In use, by stud 9, nut 10 and Quick hoop 13, easily insulating bar 1, fastener 2 and auxiliary connecting link 3 can be linked together, then firmly make the probe 51 of portable support insulator electrified defect detector 5 with the cylinder close contact of described insulator and remain on this position (about 6 seconds), until following actions terminates:
-the first pilot lamp is lighted (redness);
-quote the sequence numbering of detection;
-the second pilot lamp is lighted (green);
-send hiss;
-quote " test terminates " signal.
Then the probe 51 of portable support insulator electrified defect detector 5 is taken away from the cylinder of described insulator, test and complete.
From the above, the utility model has and can detect all kinds insulator easily, and detection efficiency is high, simple to operate, is applicable to each electric pressure, the flaw detection of various types of high voltage porcelain bushing vibratory drilling method, can realizes live detection.
The foregoing is only the schematic embodiment of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.And it should be noted that, each ingredient of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristic described in instructions of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model naturally covers other relevant with this case utility model point and combines and embody rule.
Claims (10)
1. a fulcrum type insulator vibration detecting instrument, it is characterized in that, described three fulcrum type insulator vibration detecting instrument comprise insulating bar (1) and auxiliary support apparatus (6), the upper end of insulating bar (1) is provided with portable porcelain pillar insulator electrified defect detector (5), and the lower end of auxiliary support apparatus (6) is connected with portable porcelain pillar insulator electrified defect detector (5) or insulating bar (1); When portable porcelain pillar insulator electrified defect detector (5) detects insulator, the upper end of auxiliary support apparatus (6) can contact the cylinder of described insulator with two probes (51) of portable porcelain pillar insulator electrified defect detector (5) simultaneously.
2. three fulcrum type insulator vibration detecting instrument according to claim 1, it is characterized in that, insulating bar (1) is vertically arranged, auxiliary support apparatus (6) comprises assist probes (61) and spiral expanding bar (63), be arranged with spring (62) outside spiral expanding bar (63), assist probes (61) is connected with the upper end of spiral expanding bar (63);
When the lower end of auxiliary support apparatus (6) is connected with portable porcelain pillar insulator electrified defect detector (5), the lower end of spiral expanding bar (63) is connected with portable porcelain pillar insulator electrified defect detector (5);
When the lower end of auxiliary support apparatus (6) is connected with insulating bar (1), the lower end of spiral expanding bar (63) is connected with insulating bar (1).
3. three fulcrum type insulator vibration detecting instrument according to claim 2, it is characterized in that, the length of assist probes (61) is greater than the length of probe (51), and the diameter of spring (62) is less than the diameter of the spring of portable porcelain pillar insulator electrified defect detector (5), the elasticity coefficient of spring (62) is greater than the elasticity coefficient of the spring of portable porcelain pillar insulator electrified defect detector (5), the external diameter of spiral expanding bar (63) is less than the external diameter of the spiral expanding bar of portable porcelain pillar insulator electrified defect detector (5), assist probes (61) upward.
4. three fulcrum type insulator vibration detecting instrument according to claim 2, it is characterized in that, two probes (51) of portable porcelain pillar insulator electrified defect detector (5) upward, when the lower end of auxiliary support apparatus (6) is connected with insulating bar (1), the lower end of spiral expanding bar (63) is connected to the middle part of insulating bar (1) by auxiliary connecting link (4).
5. three fulcrum type insulator vibration detecting instrument according to claim 4, it is characterized in that, auxiliary connecting link (4) has the flat segments, segmental arc and the inserting section that connect successively from top to bottom, auxiliary support apparatus (6) is connected with the upper end of described flat segments, described flat segments is parallel with described inserting section, and described inserting section is flat structure.
6. three fulcrum type insulator vibration detecting instrument according to claim 4, it is characterized in that, the middle part of insulating bar (1) is fixedly installed fastener (2), auxiliary support apparatus (6) is positioned at the top of fastener (2), the lower end of auxiliary connecting link (4) is connected with insulating bar (1) by fastener (2), and auxiliary connecting link (4) can rotate relative to fastener (2).
7. three fulcrum type insulator vibration detecting instrument according to claim 6, it is characterized in that, fastener (2) is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector (5), the lower end of auxiliary connecting link (4) is inserted in the cavity of fastener (2), the lower end of auxiliary connecting link (4) is provided with the first screw (8), a side perisporium of fastener (2) is provided with the second screw (12), the auxiliary stud (9) that passes through between connecting link (4) and fastener (2) to coordinate with nut (10) through the first screw (8) and the second screw (12) and realizes being connected.
8. three fulcrum type insulator vibration detecting instrument according to claim 7, it is characterized in that, the described side perisporium of fastener (2) is also provided with multiple switching hole (11), switch the top that hole (11) is positioned at the second screw (12), the curved arrangement of multiple switching hole (11), auxiliary connecting link (4) is provided with the clamp button of the spring (7) that can be arranged in and switch hole (11), clamp button of the spring (7) is positioned at the top of the first screw (8), switch hole (11) equal with the distance between the first screw (8) with the Distance geometry clamp button of the spring (7) between the second screw (12), when rotating auxiliary connecting link (4), clamp button of the spring (7) can be arranged in switching holes (11) different in multiple switching hole (11).
9. three fulcrum type insulator vibration detecting instrument according to claim 6, it is characterized in that, fastener (2) is box like structure, described box like structure is cube shaped, the roof of described box like structure is towards portable porcelain pillar insulator electrified defect detector (5), the lower end of auxiliary connecting link (4) is inserted in the cavity of fastener (2), the lower end of auxiliary connecting link (4) is provided with the first screw (8), a side perisporium of fastener (2) is provided with fan-shaped hand and dials switch plate (3), hand is dialled switch plate (3) and is provided with the second screw (12), the auxiliary stud (9) that passes through between connecting link (4) and fastener (2) to coordinate with nut (10) through the first screw (8) and the second screw (12) and realizes being connected, hand is dialled on switch plate (3) and is also provided with multiple switching hole (11), switch the top that hole (11) is positioned at the second screw (12), the curved arrangement of multiple switching hole (11), auxiliary connecting link (4) is provided with the clamp button of the spring (7) that can be arranged in and switch hole (11), clamp button of the spring (7) is positioned at the top of the first screw (8), switch hole (11) equal with the distance between the first screw (8) with the Distance geometry clamp button of the spring (7) between the second screw (12), when rotating auxiliary connecting link (4), clamp button of the spring (7) can be arranged in switching holes (11) different in multiple switching hole (11).
10. three fulcrum type insulator vibration detecting instrument according to claim 6, it is characterized in that, fastener (2) is provided with at least one Quick hoop (13), and fastener (2) is fixedly connected with insulating bar (1) by Quick hoop (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042823.7U CN205175969U (en) | 2015-12-15 | 2015-12-15 | Three point type insulator vibration detection instruments |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521042823.7U CN205175969U (en) | 2015-12-15 | 2015-12-15 | Three point type insulator vibration detection instruments |
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| Publication Number | Publication Date |
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| CN205175969U true CN205175969U (en) | 2016-04-20 |
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| CN201521042823.7U Active CN205175969U (en) | 2015-12-15 | 2015-12-15 | Three point type insulator vibration detection instruments |
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| CN (1) | CN205175969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388216A (en) * | 2015-12-15 | 2016-03-09 | 华北电力科学研究院有限责任公司 | Three-support point porcelain bushing vibration detector |
-
2015
- 2015-12-15 CN CN201521042823.7U patent/CN205175969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388216A (en) * | 2015-12-15 | 2016-03-09 | 华北电力科学研究院有限责任公司 | Three-support point porcelain bushing vibration detector |
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