CN108063022B - A kind of porcelain insulator for stablizing installation - Google Patents
A kind of porcelain insulator for stablizing installation Download PDFInfo
- Publication number
- CN108063022B CN108063022B CN201711307309.5A CN201711307309A CN108063022B CN 108063022 B CN108063022 B CN 108063022B CN 201711307309 A CN201711307309 A CN 201711307309A CN 108063022 B CN108063022 B CN 108063022B
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- China
- Prior art keywords
- striking
- insulator
- flange
- recess
- insulated column
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/04—Chains; Multiple chains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/06—Fastening of insulator to support, to conductor, or to adjoining insulator
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
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- Insulators (AREA)
Abstract
The invention discloses the porcelain insulators that one kind can stablize installation, belong to insulation subdomains, including insulator chain and it is respectively arranged in the wire-clamping device and mounting device at insulator chain both ends, insulator chain includes several insulator bodies being cascaded, insulator body includes insulated column and the umbrella disk that is arranged at intervals on insulated column, it is fixed between insulator body by being set to the flanged joint of insulated column one end, flange includes axle sleeve and the ring flange for being set to axle sleeve one end side wall, the internal diameter of axle sleeve is equal with insulation column diameter, ring flange is provided with the first protrusion and the first groove far from a side surface of axle sleeve, first protrusion is adapted with the first groove shapes, first protrusion and the first groove are around ring flange center line, and it is arranged along flange plate edge interval；The first bolt hole structure of the invention being additionally provided on ring flange through ring flange is firm, practical, while also having the effect of lightning protection.
Description
Technical field
The present invention relates to insulation subdomains, more particularly to a kind of porcelain insulator that can stablize installation.
Background technique
Insulator is a kind of special insulation control, can be played an important role in overhead transmission lines.Between one's early years absolutely
Edge is chiefly used in electric pole, and the one end for being slowly developed in high type high-tension bus-bar connection tower has hung many plate-likes for increasing creepage distance
Insulator, while insulator is generally all installed on eminence, while often being influenced by strong wind, the electric discharge of windage yaw now is always
One of the problem of influencing line security operation.
Summary of the invention
In order to overcome the drawbacks of the prior art, technical problem to be solved by the present invention lies in propose that one kind can stablize installation
Porcelain insulator, there is very reliable stability, and structure is simple, easy for installation.
To achieve this purpose, the present invention adopts the following technical scheme:
A kind of porcelain insulator for stablizing installation, including insulator chain and the folder for being respectively arranged in the insulator chain both ends
Line apparatus and mounting device, the insulator chain include several insulator bodies being cascaded, the insulator body packet
The umbrella disk for including insulated column and being arranged at intervals on the insulated column, by being set between the two neighboring insulator body
The flanged joint for stating insulated column one end is fixed, and the insulator body on the mounting device is set far from one end of the flange
It is equipped with threaded rod；The flange includes axle sleeve and the ring flange for being set to described axle sleeve one end side wall, the internal diameter of the axle sleeve with
The insulation column diameter is equal, and the ring flange is provided with the first protrusion and the first groove far from the surface of the axle sleeve, described
First protrusion is adapted with first groove shapes, and first protrusion and first groove are around the ring flange center
Line and along flange plate edge interval be arranged；The first bolt hole through the ring flange is additionally provided on the ring flange；
The mounting device includes the fixed plate positioned at the insulator chain two sides of the bottom, and the fixed plate is close to described exhausted
One end of edge column is provided with notch compatible with the insulated column, and the fixed plate upper surface is along the gap edge towards separate
The fixed plate direction is convexly equipped with flange, and the flange includes bending part and the buttcover plate for being set to the bending part both ends, institute
It states bending part to be adapted with the insulated column shape, and is equipped with the second bolt hole on the buttcover plate；In the fixed plate also
It is provided with for the flat recess fixed with cross-arm；
The wire-clamping device includes pipe sleeve and the pedestal that is set at the top of the pipe sleeve, the internal diameter of the pipe sleeve and it is described absolutely
The diameter of edge column is equal, and the both ends of the base upper surface are equipped with detent bolt, and gland, and the pressure are equipped with above the pedestal
Lid is sheathed on the detent bolt and is fixed by nut；The base upper surface is equipped with the between the two detent bolts
One recess, the gland lower surface are equipped with the second recess corresponding with first recess, first recess and described the
Two recess, which are formed, holds wire casing；
The base side is connected with starting rod, and the starting rod free end is provided with extinguishing arc cap, sets on the insulated column
There is earthing pole, the earthing pole is located at the fixed plate and between the umbrella disk of the mounting device；The striking
Stick includes striking pipe and Slidable telescopic is set in the striking set on the striking pipe, the striking put on is provided with it is several logical
Hole, the striking pipe are provided with elastic salient point close to one end of the striking cap, and the striking set and the striking pipe pass through institute
Elastic salient point is stated to connect and fix.
As the further improvement of this programme, the striking pipe is provided with the second groove close to one end of the striking cap,
The elastic salient point is set on second groove, and the elastic salient point is connected with second groove by spring.
It is recessed that strip is provided with along striking length of tube direction as the further improvement of this programme, on the striking pipe
It falls into, is provided with strip protrusion on the striking set inner wall, the strip protrusion is adapted with strip recess.
As the further improvement of this programme, triangle stiffening plate is provided between the fixed plate and the flange.
As the further improvement of this programme, the flat recess is arranged along the fixed plate length direction and quantity is.
As the further improvement of this programme, the inner wall of first recess and second recess is equipped with ratchet.
As the further improvement of this programme, the umbrella disk diameter in the insulator body successively increases from top to bottom
Greatly.
One kind provided by the invention can stablize the porcelain insulator of installation, and the threaded rod for being set to insulator chain bottom passes through
Nut is fixed on cross-arm, while the flange being located in the fixed plate of insulator chain two sides is close to insulated column, while fixed plate is logical
It crosses bolt to be fixed on cross-arm, so that insulator chain and cross-arm are stably connected with；Insulator chain passes through method by several insulator bodies
Orchid connection is formed, and is convenient to transport；It is additionally provided with starting rod and earthing pole simultaneously, starting rod can be according to the height tune of insulator chain
Its length is saved, there is very high practicability and the configuration of the present invention is simple, be easily installed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation；
Fig. 2 is the structure of the wire-clamping device for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation
Schematic diagram；
Fig. 3 is that the structure of the starting rod for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation is shown
It is intended to；
Fig. 4 is that a kind of porcelain insulator striking set that can stablize installation that the specific embodiment of the invention provides is socketed in striking
Sectional view on pipe；
Fig. 5 is the flange base signal for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation
Figure；
Fig. 6 is signal at the top of the flange for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation
Figure；
Fig. 7 is the main view of the fixed plate for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation
Figure；
Fig. 8 is the right view of the fixed plate for the porcelain insulator that one kind that the specific embodiment of the invention provides can stablize installation
Figure.
In figure:
100, testboard；110, insulator body；120, insulated column；130, umbrella disk；140, flange；150, axle sleeve；151,
Slot；160, ring flange；170, the first protrusion；180, the first groove；190, the first bolt hole；200, wire-clamping device；210, it manages
Set；220, pedestal；221, detent bolt；230, gland；240, the first recess；250, the second recess；260, hold wire casing；261, it pierces
Tooth；270, starting rod；271, striking pipe；272, striking set；273, through-hole；274, elastic salient point；275, the second groove；276, long
Item recess；277, strip protrusion；280, extinguishing arc cap；290, earthing pole；300, mounting device；310, threaded rod；320, fixed plate；
330, flange；331, bending part；332, buttcover plate；340, notch；350, the second bolt hole；360, flat recess；370, triangle adds
Strong plate.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As depicted in figs. 1 and 2, a kind of porcelain insulator for stablizing installation, including insulator chain 100 and it is respectively arranged in institute
The wire-clamping device 200 and mounting device 300 at 100 both ends of insulator chain are stated, the insulator chain 100 includes several is cascaded
Insulator body 110, the insulator body 110 includes insulated column 120 and the umbrella that is arranged at intervals on the insulated column 120
Disk 130, between the two neighboring insulator body 110 by be set to the flange 140 of described 120 one end of insulated column connect it is solid
Fixed, the insulator body 110 on the mounting device 300 is provided with threaded rod 310 far from one end of the flange 140；
Such as Fig. 5 and Fig. 6, the flange 140 includes axle sleeve 150 and the ring flange 160 for being set to 150 one end side wall of axle sleeve, described
The internal diameter of axle sleeve is equal with 120 diameter of insulated column, and the ring flange 160 is provided with far from the surface of the axle sleeve 150
One protrusion 170 and the first groove 180, first protrusion 170 are adapted with 180 shape of the first groove, and described first is convex
Rise 170 and first groove 180 around 160 center line of ring flange and along the 160 edge interval of ring flange be arranged；Institute
State the first bolt hole 190 being additionally provided on ring flange 160 through the ring flange 160；
The mounting device 300 includes the fixed plate 320 positioned at 100 two sides of the bottom of insulator chain, the fixed plate
320 are provided with notch 340 compatible with the insulated column 120, the fixed plate 320 close to one end of the insulated column 120
Upper surface is convexly equipped with flange 330 towards far from 320 direction of fixed plate along 340 edge of notch, and the flange 330 includes folding
Turn of bilge 331 and the buttcover plate 332 for being set to 331 both ends of bending part, the bending part 331 and 120 shape of insulated column
It is adapted, and is equipped with the second bolt hole 350 on the buttcover plate 332；It is additionally provided with and is used for and cross-arm in the fixed plate 320
Fixed flat recess 360；
The wire-clamping device 200 includes pipe sleeve 210 and the pedestal 220 for being set to 210 top of pipe sleeve, the pipe sleeve
210 internal diameter is equal with the diameter of the insulated column 120, and the both ends of 220 upper surface of pedestal are equipped with detent bolt 221, institute
It states and is equipped with gland 230 above pedestal 220, and the gland 230 is sheathed on the detent bolt 221 and is fixed by nut；
220 upper surface of pedestal is equipped with the first recess 240 between the two detent bolts 221, and 230 lower surface of gland is equipped with
Second recess 250 corresponding with first recess 240, first recess 240 is formed with second recess 250 holds line
Slot 260；
220 side of pedestal is connected with starting rod 270, and 270 free end of starting rod is provided with extinguishing arc cap 280, institute
Insulated column 120 is stated equipped with earthing pole 290, the earthing pole 290 is located at the fixed plate 320 and near the mounting device
Between 300 umbrella disk 130；The starting rod 270 includes that striking pipe 271 and Slidable telescopic are set in the striking pipe
Striking set 272 on 271, the striking, which is put on, is provided with several through-holes 273, and the striking pipe 271 is close to the striking cap 280
One end be provided with elastic salient point 274, the striking set 272 and the striking pipe 271 are consolidated by the elastic salient point 274 clamping
It is fixed.
One kind of above-mentioned offer can stablize the porcelain insulator of installation, be set to the screw thread of 100 bottom of insulator chain
Bar 310 is fixed on cross-arm by nut, while the flange 330 being located in the fixed plate 320 of 100 two sides of insulator chain is tight
The insulated column 120 is pasted, while the fixed plate 320 is fixed by bolts on cross-arm, so that insulator chain 100 and cross-arm are steady
Fixed connection, and the configuration of the present invention is simple, it is easy for installation, there is very high usability.
More specifically, may include two insulator bodies 110 in the insulator chain 100, the insulator body 110 it
Between be fixedly connected by the flange 140, be set to described raised 170 on the ring flange 160 as cylindrical body protrusion, it is described
Groove 180 is cylindrical body groove, and described raised 170 on one of them described flange 140 are connected to another flange 140
On the groove 180 on, simultaneously described raised 170 on another described flange 170 are also connected to this method
On the groove 180 of orchid 140, corresponding first bolt hole is passed through on two flanges 140 by two with bolt later
The flange 140 is fixed；
The threaded rod 310 for being set to 100 bottom of insulator chain is fixed on cross-arm by nut, is located at simultaneously
The flange 330 in the fixed plate 320 of 100 two sides of insulator chain is close to the insulated column 120, and the institute of two sides
It is fastened to each other with bolt to state fixed plate 330, while the fixed plate 330 is fixed by bolts on cross-arm, so that the insulation
Substring 100 and cross-arm are stably connected with；
Such as Fig. 3, the striking covers on the striking pipe 271 with covering 272 Slidable telescopics, when on striking set 272
The through-hole 273 when sliding into the position of the relatively described elastic salient point 274, the elastic salient point 274 bounce be connected to it is described
It is on through-hole 273 that striking set 272 and the striking pipe 271 is relatively fixed, it presses described in the elastic salient point 274 and sliding
The length of the starting rod 270 can be changed in striking set 272, when another described through-hole 273 slides into the elastic salient point 274
When on relative position, the striking set 272 and the striking pipe 271 continue to be fixed, so as to adapt to described in different number
The insulator chain 100 of insulator body 110, make positioned at described 270 one end of starting rod the extinguishing arc cap 280 always with institute
It states earthing pole 290 and is in a suitable distance, convenient for forming gap discharge.
Further, the striking pipe 271 is provided with the second groove 275, the bullet close to one end of the striking cap 280
Property salient point 274 be set on second groove 275, the elastic salient point 274 and second groove 275 pass through spring and connect
It connects；When the through-hole 273 on striking set 272 slides into the position of the relatively described elastic salient point 274, the spring will
The elastic salient point 274, which bounces, blocks the striking set 272, presses the elastic salient point 274 and slides the striking set 272,
The elastic salient point 274 is crushed on 275 on second groove.
Such as Fig. 4, strip recess further, on the striking pipe 271 is provided with along 271 length direction of striking pipe
276, the striking, which covers, is provided with strip protrusion 277 on 272 inner walls, and the strip protrusion 277 and the strip 276 phases of recess are suitable
Match；The strip protrusion 277 is slided in strip recess 276, limits the striking pipe 271 and striking set 272
Between all circular directions relative rotation, ensure that the elastic salient point 274 is between several through-holes 273.
Further such as Fig. 8, triangle stiffening plate 370 is provided between the fixed plate 320 and the flange 330；Reinforce
The structural strength of the fixed plate 370 and the flange 330.
Such as Fig. 7, further, the flat recess 360 is arranged along 320 length direction of fixed plate and quantity is 2；Institute
State the cross-arm that the design of flat recess 360 makes the fixed plate 370 be suitable for different location threaded hole.
Further, the inner wall of first recess 240 and second recess 250 is equipped with ratchet 261；The ratchet
261 can block circuit line, increase circuit line and the frictional force and firmness held between wire casing 260.
Further, 130 diameter of the umbrella disk in the insulator body 110 is sequentially increased from top to bottom；The umbrella
130 edge of disk is not arranged on the same straight line in vertical direction, and when winter, the icicle that 130 edge of umbrella disk is formed is not easy to bridge
Onto the icicle at next 130 edge of umbrella disk, anti-stagnant ice dodges.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (7)
1. the porcelain insulator that one kind can stablize installation, it is characterised in that:
Including insulator chain (100) and it is respectively arranged in the wire-clamping device (200) at the insulator chain (100) both ends and dress is installed
It sets (300), the insulator chain (100) includes several insulator bodies (110) being cascaded, the insulator body
It (110) include insulated column (120) and the umbrella disk (130) being arranged at intervals on the insulated column (120), the two neighboring insulation
It is connected and fixed between sub- ontology (110) by being set to the flange (140) of the insulated column (120) one end, close to the installation
Insulator body (110) on device (300) is provided with threaded rod (310) far from the one end of the flange (140)；The flange
(140) include axle sleeve (150) and the ring flange (160) for being set to the axle sleeve (150) one end side wall, the internal diameter of the axle sleeve with
Insulated column (120) diameter is equal, and the ring flange (160) is provided with the first protrusion far from the surface of the axle sleeve (150)
(170) and the first groove (180), described first raised (170) are adapted with the first groove (180) shape, and described first
Raised (170) and first groove (180) are around the ring flange (160) center line and between the ring flange (160) edge
Every setting；The first bolt hole (190) through the ring flange (160) is additionally provided on the ring flange (160)；
The mounting device (300) includes the fixed plate (320) positioned at the insulator chain (100) two sides of the bottom, the fixation
Plate (320) is provided with the compatible notch (340) with the insulated column (120) close to the one end of the insulated column (120), described
Fixed plate (320) upper surface is convexly equipped with flange (330) towards far from the fixed plate (320) direction along the notch (340) edge,
The flange (330) includes bending part (331) and the buttcover plate (332) for being set to the bending part (331) both ends, the bending
Portion (331) is adapted with the insulated column (120) shape, and the second bolt hole (350) are equipped on the buttcover plate (332)；
It is additionally provided on the fixed plate (320) for the flat recess (360) fixed with cross-arm；
The wire-clamping device (200) includes pipe sleeve (210) and the pedestal (220) being set at the top of the pipe sleeve (210), the pipe
The internal diameter for covering (210) is equal with the diameter of the insulated column (120), and the both ends of pedestal (220) upper surface are equipped with detent spiral shell
Bolt (221), pedestal (220) top is equipped with gland (230), and the gland (230) is sheathed on the detent bolt (221)
Above and by nut fix；Pedestal (220) upper surface is equipped with the first recess between the two detent bolts (221)
(240), gland (230) lower surface is equipped with the second recess (250) corresponding with first recess (240), and described the
One recess (240) and second recess (250) form and hold wire casing (260)；
Pedestal (220) side is connected with starting rod (270), and starting rod (270) free end is provided with extinguishing arc cap
(280), the insulated column (120) is equipped with earthing pole (290), and the earthing pole (290) is located at the fixed plate (320) and most
Between the umbrella disk (130) of the mounting device (300)；The starting rod (270) includes striking pipe (271) and can slide
The dynamic flexible striking set (272) being set on the striking pipe (271), the striking, which is put on, is provided with several through-holes (273), institute
It states striking pipe (271) to be provided with elastic salient point (274) close to one end of the striking cap (280), the striking set (272) and institute
Striking pipe (271) is stated to connect and fix by the elastic salient point (274).
2. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
The striking pipe (271) is provided with the second groove (275), the elastic salient point close to one end of the striking cap (280)
(274) it is set on second groove (275), the elastic salient point (274) and second groove (275) are connected by spring
It connects.
3. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
Strip recess (276), the striking are provided on the striking pipe (271) along striking pipe (271) length direction
It is raised (277) that strip is provided on set (272) inner wall, the strip raised (277) is adapted with strip recess (276).
4. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
Triangle stiffening plate (370) are provided between the fixed plate (320) and the flange (330).
5. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
The flat recess (360) is arranged along the fixed plate (320) length direction and quantity is 2.
6. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
The inner wall of first recess (240) and second recess (250) is equipped with ratchet (261).
7. the porcelain insulator that one kind according to claim 1 can stablize installation, it is characterised in that:
The umbrella disk (130) diameter on the insulator body (110) is sequentially increased from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307309.5A CN108063022B (en) | 2017-12-11 | 2017-12-11 | A kind of porcelain insulator for stablizing installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711307309.5A CN108063022B (en) | 2017-12-11 | 2017-12-11 | A kind of porcelain insulator for stablizing installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108063022A CN108063022A (en) | 2018-05-22 |
| CN108063022B true CN108063022B (en) | 2019-09-20 |
Family
ID=62136395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711307309.5A Active CN108063022B (en) | 2017-12-11 | 2017-12-11 | A kind of porcelain insulator for stablizing installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108063022B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494030A (en) * | 2018-12-12 | 2019-03-19 | 湖南兴华电瓷电器制造有限公司 | A kind of lightning protection electric porcelain insulator |
| CN109616264A (en) * | 2018-12-12 | 2019-04-12 | 湖南兴华电瓷电器制造有限公司 | A kind of adjustable porcelain long rod insulator |
| CN111063496B (en) * | 2019-12-17 | 2021-01-12 | 江西省萍乡市宇翔电瓷制造有限公司 | Anti-breakdown lightning protection column type insulator |
| CN110993217B (en) * | 2019-12-30 | 2021-01-12 | 萍乡市华瑞电瓷电器有限责任公司 | Column type insulator |
| CN112271042A (en) * | 2020-10-12 | 2021-01-26 | 江西省萍乡市南坑高压电瓷有限公司 | Electric porcelain insulator convenient to disassemble and assemble for high-voltage power transmission line and manufacturing process |
| CN112259305B (en) * | 2020-10-12 | 2022-03-25 | 江西省萍乡市南坑高压电瓷有限公司 | Self-cleaning type nano glaze porcelain umbrella-shaped insulator and use method thereof |
| CN112489898A (en) * | 2020-11-20 | 2021-03-12 | 江西红星瓷业有限公司 | Electroceramics porcelain insulator with windproof structure |
| CN117542592B (en) * | 2024-01-09 | 2024-03-15 | 河北安美电气设备股份有限公司 | Forming device and forming process of aluminum flange sleeve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB376649A (en) * | 1931-01-03 | 1932-07-14 | British Thomson Houston Co Ltd | Improvements in and relating to fixing devices for electric insulators |
| JPH1155831A (en) * | 1997-08-05 | 1999-02-26 | Yazaki Corp | Grommet |
| CN203397796U (en) * | 2013-07-31 | 2014-01-15 | 浙江瑞力电气有限公司 | Novel insulator |
| CN205303084U (en) * | 2016-01-25 | 2016-06-08 | 浙江富拓电力科技有限公司 | Lightning protection post column insulator |
-
2017
- 2017-12-11 CN CN201711307309.5A patent/CN108063022B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB376649A (en) * | 1931-01-03 | 1932-07-14 | British Thomson Houston Co Ltd | Improvements in and relating to fixing devices for electric insulators |
| JPH1155831A (en) * | 1997-08-05 | 1999-02-26 | Yazaki Corp | Grommet |
| CN203397796U (en) * | 2013-07-31 | 2014-01-15 | 浙江瑞力电气有限公司 | Novel insulator |
| CN205303084U (en) * | 2016-01-25 | 2016-06-08 | 浙江富拓电力科技有限公司 | Lightning protection post column insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108063022A (en) | 2018-05-22 |
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