CN111599543B - Insulator with adjustable height - Google Patents
Insulator with adjustable height Download PDFInfo
- Publication number
- CN111599543B CN111599543B CN202010609788.1A CN202010609788A CN111599543B CN 111599543 B CN111599543 B CN 111599543B CN 202010609788 A CN202010609788 A CN 202010609788A CN 111599543 B CN111599543 B CN 111599543B
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- Prior art keywords
- sleeve
- insulator
- threaded
- clamping
- height
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- 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
- H01B17/14—Supporting insulators
- H01B17/16—Fastening of insulators 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
Abstract
The invention discloses a height-adjustable insulator which comprises an insulator body, a connecting hardware fitting and an insulator hardware fitting, wherein the insulator body is provided with a connecting hardware fitting; the insulator hardware comprises a fixed sleeve, a threaded sleeve and a clamping sleeve which are sequentially arranged along the axial direction of the slotted hole; the fixing sleeve is directly fixed at the end part of the insulator body, two ends of the threaded sleeve are respectively and rotatably connected with the fixing sleeve and the clamping sleeve, and a threaded hole matched with the threaded rod is formed in the interior of the threaded sleeve; the threaded sleeve is rotatably connected with the fixed sleeve and the clamping sleeve, and when the threaded sleeve rotates, the threaded rod on the connecting hardware tool axially ascends and descends along with the threaded sleeve, so that the height of the insulator is adjusted; after the installation is finished, the height of the insulator can be adjusted through the threaded sleeve, so that the problem that the height of the insulator is not matched with the actual required height due to height calculation errors during installation can be solved.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to an insulator with adjustable height.
Background
The insulator is a special insulation control, can play an important role in overhead transmission lines, and is used for supporting and fixing a bus and a live conductor and enabling the live conductor or the conductor to have enough distance and insulation with the ground.
In the related art, because the heights of the circuit and the fixing seat are different, insulators with different heights are often needed, and the insulators with different specifications are often needed due to the fact that the heights of the insulators are fixed, so that the design and production costs are increased, and resource waste is caused.
Disclosure of Invention
In view of the above, the present invention is directed to overcome the shortcomings of the prior art, and to provide an insulator with adjustable height.
The invention provides the following technical scheme:
an insulator with adjustable height comprises an insulator body, a connecting hardware fitting and an insulator hardware fitting;
the cylindrical surface of the insulator body is provided with a plurality of ribs which are arranged at intervals;
one end of the connecting hardware fitting is used for being connected with the outside, and the other end of the connecting hardware fitting is provided with a threaded rod;
one end of the insulator hardware fitting is fixed at the end part of the insulator body, the other end of the insulator hardware fitting is provided with a slotted hole for the threaded rod to penetrate through, and the insulator hardware fitting comprises a fixed sleeve, a threaded sleeve and a clamping sleeve which are sequentially arranged along the axial direction of the slotted hole;
the fixing sleeve is directly fixed at the end part of the insulator body, two ends of the threaded sleeve are respectively in rotating connection with the fixing sleeve and the clamping sleeve, and a threaded hole matched with the threaded rod is formed in the threaded sleeve;
the utility model discloses a clamping device, including threaded sleeve, clamping sleeve, elastic strip, clamping sleeve and clamping rod, the clamping sleeve is kept away from be equipped with a plurality of open slots on the one end lateral wall of threaded sleeve, it has the elasticity strip, and is a plurality of to fill on the open slot will a plurality of grip blocks are divided into to the lateral wall of clamping sleeve, the lateral surface of clamping sleeve is equipped with the binding clip spare, the binding clip spare acts on a plurality of the grip block makes a plurality ofly the grip block is close to with the centre gripping along radial direction each other the threaded rod.
As a further improvement of the technical scheme of the invention, one end of the fixed sleeve, which is far away from the insulator body, is provided with a first annular clamping groove and a first annular clamping hook, one end of the threaded sleeve, which is close to the fixed sleeve, is provided with a second annular clamping hook and a second annular clamping groove, the second annular clamping hook and the second annular clamping groove are respectively matched with the first annular clamping groove and the first annular clamping hook, and the threaded sleeve and the fixed sleeve are rotationally connected through matching of the first annular clamping groove, the second annular clamping hook, the first annular clamping hook and the second annular clamping groove.
As a further improvement of the technical scheme of the invention, the open slot comprises a clamping hole located in the clamping sleeve, a threaded hole located in the threaded sleeve and a limiting hole located in the fixing sleeve, and the clamping hole, the threaded hole and the limiting hole are coaxially arranged.
As a further improvement of the technical scheme of the invention, the outer peripheral surface of the threaded sleeve is provided with a rotating handle.
As a further improvement of the technical scheme of the invention, the bottom of the clamping sleeve is provided with a reinforcing convex ring.
As a further improvement of the technical scheme of the invention, the threaded rod comprises a threaded section at the end part and a smooth section corresponding to the clamping sleeve.
As a further improvement of the technical scheme of the invention, the end surface of the threaded section is provided with a guide surface.
As a further improvement of the technical scheme of the invention, the diameter of the smooth section is consistent with the inner diameter of the clamping sleeve.
As a further improvement of the technical scheme of the invention, the tightening piece is a clamping ring with an opening, the two ends of the opening of the clamping ring are respectively provided with a tightening plate, and the tightening plates are provided with adjusting bolts for controlling the two tightening plates to approach each other.
As a further improvement of the technical scheme of the invention, a stop block is arranged on the outer side surface of the clamping plate and is positioned at the top end of the clamping plate.
The invention has the following advantages:
the threaded sleeve is rotatably connected with the fixed sleeve and the clamping sleeve, and when the threaded sleeve rotates, the threaded rod on the connecting hardware tool axially ascends and descends along with the threaded sleeve, so that the height of the insulator is adjusted; after the installation is finished, the height of the insulator can be adjusted through the threaded sleeve, so that the problem that the height of the insulator is not matched with the actual required height due to height calculation errors during installation can be solved; the clamping sleeve is provided with an open slot, and the threaded rod is clamped and fixed through the clamping piece, so that the height of the clamping sleeve is fixed; the elastic strips on the open slots can avoid the plastic deformation of the clamping plates in the long-term use process, and simultaneously prevent rainwater from entering the slots through the open slots, so that the inside of the insulator hardware fitting is oxidized and corroded.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible and comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic perspective view illustrating a height-adjustable insulator according to an embodiment of the present invention;
fig. 2 is an axial cross-sectional view illustrating a height-adjustable insulator according to an embodiment of the present invention;
FIG. 3 shows an enlarged view of section A of FIG. 2;
fig. 4 is a schematic structural diagram illustrating a clamping sleeve of an insulator with adjustable height according to an embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a connection fitting of an insulator with an adjustable height according to an embodiment of the present invention.
Description of the main element symbols: 100. an insulator body; 110. an umbrella edge; 200. connecting a hardware fitting; 210. a threaded rod; 211. a threaded segment; 212. a smoothing section; 213. a guide surface; 300. insulator hardware; 310. a slot; 320. fixing a sleeve; 321. a first ring-shaped card slot; 322. a first annular hook; 323. a limiting hole; 330. a threaded sleeve; 331. a threaded hole; 332. a second annular hook; 333. a second annular card slot; 334. rotating the handle; 340. a clamping sleeve; 341. an open slot; 342. an elastic strip; 343. a clamping plate; 344. a clamping hole; 350. a cinch; 351. a snap ring; 352. an opening; 353. a tightening plate; 354. adjusting the bolt; 360. a reinforcing convex ring; 370. and a stop block.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The embodiment of the invention provides a height-adjustable insulator which is suitable for the technical field of power equipment and used for supporting and fixing a bus and a live conductor and enabling the live conductor or the conductor to have enough distance and insulation with the ground. Referring to fig. 1, the insulator with adjustable height includes an insulator body 100, a connecting fitting 200, and an insulator fitting 300.
The insulator body 100 is made of an insulating material, and the cylindrical surface is provided with a plurality of ribs 110 arranged at intervals for increasing the creepage distance.
The link fitting 200 is used for implementing connection and fixation with the outside according to the embodiment of the present invention.
One end of the insulator hardware 300 is fixed to the end of the insulator body 100, and the other end is connected to the connecting hardware 200; specifically, the connection fitting 200 is provided with a threaded rod 210, the insulator fitting 300 is provided with a slot 310 through which the threaded rod 210 penetrates, and the threaded rod 210 penetrates through the slot 310 to realize connection and fixation of the insulator fitting 300 and the connection fitting 200.
Referring to fig. 2, in the embodiment of the present invention, the insulator hardware 300 includes a fixed sleeve 320, a threaded sleeve 330 and a clamping sleeve 340 sequentially disposed along the axial direction of the slot 310;
the fixing sleeve 320 is directly fixed to the insulator hardware 300, and in this embodiment, is connected by cement. The fixing sleeve 320 is internally provided with a limiting hole 323, the limiting hole 323 corresponds to the end part of the threaded rod 210, so that the threaded rod 210 can be conveniently lifted, and the interference of the fixing sleeve 320 on the lifting of the threaded rod 210 is avoided.
Two ends of the threaded sleeve 330 are respectively rotatably connected with the fixed sleeve 320 and the clamping sleeve 340, and a threaded hole 331 matched with the threaded rod 210 is formed in the threaded sleeve 330; the threaded sleeve 330 is rotatable relative to the fixed sleeve 320 and the clamping sleeve 340 to control the elevation of the threaded rod 210.
Referring to fig. 1 and 4, a plurality of open grooves 341 are formed on a side wall of the clamping sleeve 340 at an end away from the threaded sleeve 330, the open grooves 341 are filled with elastic strips 342, the plurality of open grooves 341 divide the side wall of the clamping sleeve 340 into a plurality of clamping plates 343, a tightening member 350 is disposed on an outer side surface of the clamping sleeve 340, and the tightening member 350 acts on the plurality of clamping plates 343 to make the plurality of clamping plates 343 approach each other in a radial direction to clamp the threaded rod 210.
The open groove 341 is provided to provide a radial offset of the clamping plate 343 to clamp the threaded rod 210.
It is understood that the clamping plate 343 has a certain elastic deformation capability so that the clamping plate 343 can make a slight deviation in the radial direction.
The elastic strip 342 has better elastic deformation capability, and the clamping piece 350 clamps the clamping plate 343, so that when the clamping plate 343 is subjected to radial deflection, the elastic strip 342 is compressed; when the tightening member 350 is loosened, the elastic restoring force of the elastic strip 342 acts on the clamping plate 343 to ensure that it is restored to the initial position, thereby preventing the clamping plate 343 from being plastically deformed in a long-term use. In the embodiment of the present invention, the elastic strip 342 is made of elastic silicone rubber and is adhered to the open groove 341.
The threaded sleeve 330 is rotationally connected with the fixed sleeve 320 and the clamping sleeve 340, and when the threaded sleeve 330 rotates, the threaded rod 210 on the connecting hardware fitting 200 axially ascends and descends along with the threaded rod, so that the height of the insulator is adjusted; after the installation is finished, the height of the insulator can be adjusted through the threaded sleeve 330, so that the problem that the height of the insulator is not matched with the actual required height due to height calculation errors during installation can be solved; the clamping sleeve 340 of the invention is provided with an open slot 341, and clamps and fixes the threaded rod 210 through the tightening piece 350, thereby fixing the height of the invention; the elastic strips 342 on the open grooves 341 can prevent the clamping plate 343 from plastically deforming in the long-term use process, and simultaneously prevent rainwater from entering the slot 310 through the open grooves 341 to oxidize and corrode the inside of the insulator hardware fitting 300.
Referring to fig. 2 and 3, in the embodiment of the present invention, one end of the fixing sleeve 320 far from the insulator body 100 is provided with a first annular groove 321 and a first annular hook 322, one end of the threaded sleeve 330 near the fixing sleeve 320 is provided with a second annular hook 332 and a second annular groove 333, the second annular hook 332 and the second annular groove 333 are respectively matched with the first annular groove 321 and the first annular hook 322, and the threaded sleeve 330 and the fixing sleeve 320 are rotatably connected through the matching of the first annular groove 321, the second annular hook 332, the first annular hook 322 and the second annular groove 333.
It can be understood that the threaded sleeve 330 and the clamping sleeve 340 can be rotationally connected through the cooperation of the hook and the slot.
In the embodiment of the present invention, the opening groove 341 includes a clamping hole 344 located in the clamping sleeve 340, a threaded hole 331 located in the threaded sleeve 330, and a limiting hole 323 located in the fixing sleeve 320, and the clamping hole 344, the threaded hole 331, and the limiting hole 323 are coaxially disposed. The clamping hole 344, the threaded hole 331 and the limiting hole 323 have the same diameter for receiving the threaded rod 210.
In the embodiment of the present invention, the outer circumferential surface of the screw housing 330 is provided with a turning knob 334. The handle may be a fixing plate fixing the outer circumferential surface of the screw boss 330, and the fixing plates may be two and symmetrically disposed about the screw boss 330. Which facilitates the operator to turn the threaded sleeve 330 by turning the knob 334.
In the embodiment of the present invention, the bottom of the clamping sleeve 340 is provided with a reinforcing protrusion ring 360. The reinforcing male ring 360 serves to reinforce the structural strength of the bottom of the clamping sleeve 340.
Referring to fig. 5, in the embodiment of the present invention, the threaded rod 210 includes a threaded section 211 at an end portion and a smooth section 212 corresponding to the clamping sleeve 340. Wherein the thread section 211 corresponds to the thread bush 330 for achieving a thread fit with the thread bush 330; the smooth section 212 corresponds to the clamping sleeve 340 and the securing of the threaded rod 210 is achieved by the clamping piece 350.
In the present embodiment, the end surface of the threaded section 211 is provided with a guide surface 213. The guide surface 213 is an inclined surface provided on an end surface of the threaded section 211, and guides the insertion of the threaded rod 210 into the clamping hole 344.
In an embodiment of the present invention, the diameter of the smooth section 212 coincides with the inner diameter of the clamping sleeve 340. When the tightening member 350 is tightened, the clamping plate 343 is tightly fitted to the smooth section 212, and the threaded rod 210 is fixed by the screw-coupling action of the threaded sleeve 330, thereby determining the height of the insulator of the present invention. Of course, in other embodiments, the diameter of the smooth section 212 may be slightly smaller than the inner diameter of the clamping sleeve 340, so as to avoid friction between the smooth section 212 and the clamping sleeve 340 when the threaded rod 210 is lifted.
In the embodiment of the present invention, the tightening member 350 is a clamping ring 351 having an opening 352, the clamping ring 351 is provided with tightening plates 353 at both ends of the opening 352, and the tightening plates 353 are provided with adjusting bolts 354 for controlling the two tightening plates 353 to approach each other. The tightening of the tightening member 350, and thus the tightening or floating of the threaded rod 210, is controlled by the tightening member 350 via the adjustment bolt 354.
In the embodiment of the present invention, a stop 370 is disposed on an outer side surface of the clamping plate 343, and the stop 370 is located at a top end of the clamping plate 343. The clasps 350 are prevented from falling off the top of the clamping plate 343.
In the embodiment of the invention, the insulator is adjusted to a certain height by rotating the threaded sleeve 330, then the invention is fixed in the circuit, if the height is detected to be improper, the threaded sleeve 330 can be continuously rotated until the height of the invention completely meets the requirement of the circuit, and then the threaded rod 210 is fixed by rotating the adjusting bolt 354, clamping the smooth section 212 by the clamping plate 343 and threaded connection of the threaded sleeve 330 to the threaded section 211, so as to fix the height of the invention.
In all examples shown and described herein, any particular value should be construed as merely exemplary, and not as a limitation, and thus other examples of example embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above examples merely represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (10)
1. An insulator with adjustable height is characterized by comprising an insulator body, a connecting hardware fitting and an insulator hardware fitting;
the cylindrical surface of the insulator body is provided with a plurality of ribs which are arranged at intervals;
one end of the connecting hardware fitting is used for being connected with the outside, and the other end of the connecting hardware fitting is provided with a threaded rod;
one end of the insulator hardware fitting is fixed at the end part of the insulator body, the other end of the insulator hardware fitting is provided with a slotted hole for the threaded rod to penetrate through, and the insulator hardware fitting comprises a fixed sleeve, a threaded sleeve and a clamping sleeve which are sequentially arranged along the axial direction of the slotted hole;
the fixing sleeve is directly fixed at the end part of the insulator body, two ends of the threaded sleeve are respectively in rotating connection with the fixing sleeve and the clamping sleeve, and a threaded hole matched with the threaded rod is formed in the threaded sleeve;
the utility model discloses a clamping device, including threaded sleeve, clamping sleeve, elastic strip, clamping sleeve and clamping rod, the clamping sleeve is kept away from be equipped with a plurality of open slots on the one end lateral wall of threaded sleeve, it has the elasticity strip, and is a plurality of to fill on the open slot will a plurality of grip blocks are divided into to the lateral wall of clamping sleeve, the lateral surface of clamping sleeve is equipped with the binding clip spare, the binding clip spare acts on a plurality of the grip block makes a plurality ofly the grip block is close to with the centre gripping along radial direction each other the threaded rod.
2. The insulator of claim 1, wherein an end of the fixing sleeve away from the insulator body is provided with a first annular groove and a first annular hook, an end of the threaded sleeve close to the fixing sleeve is provided with a second annular hook and a second annular groove, the second annular hook and the second annular groove are respectively matched with the first annular groove and the first annular hook, and the threaded sleeve and the fixing sleeve are rotationally connected through matching of the first annular groove, the second annular hook, the first annular hook and the second annular groove.
3. The insulator of claim 1, wherein the slot comprises a clamping hole in the clamping sleeve, a threaded hole in the threaded sleeve, and a limiting hole in the fixing sleeve, and the clamping hole, the threaded hole, and the limiting hole are coaxially arranged.
4. The height-adjustable insulator according to claim 1, wherein a turning knob is provided on an outer circumferential surface of the threaded bushing.
5. The height-adjustable insulator according to claim 1, wherein the bottom of the clamping sleeve is provided with a reinforcing convex ring.
6. The height-adjustable insulator according to claim 1, wherein the threaded rod includes a threaded section at an end portion and a smooth section corresponding to the clamping sleeve.
7. The height-adjustable insulator according to claim 6, wherein the end surface of the threaded section is provided with a guide surface.
8. The height-adjustable insulator according to claim 6, wherein the diameter of the smooth section is slightly smaller than the inner diameter of the clamping sleeve.
9. The insulator of claim 1, wherein the tightening member is a snap ring having an opening, the snap ring is provided with tightening plates at both ends of the opening, and the tightening plates are provided with adjusting bolts for controlling the two tightening plates to approach each other.
10. The insulator of claim 1, wherein a stop is provided on an outer side of the clamping plate, and the stop is located at a top end of the clamping plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609788.1A CN111599543B (en) | 2020-06-29 | 2020-06-29 | Insulator with adjustable height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010609788.1A CN111599543B (en) | 2020-06-29 | 2020-06-29 | Insulator with adjustable height |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111599543A CN111599543A (en) | 2020-08-28 |
| CN111599543B true CN111599543B (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010609788.1A Active CN111599543B (en) | 2020-06-29 | 2020-06-29 | Insulator with adjustable height |
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| Country | Link |
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| CN (1) | CN111599543B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112768155B (en) * | 2020-12-30 | 2022-04-29 | 苏州爱建电瓷有限公司 | Anti-aging suspension type telephone electrical porcelain insulator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013020916A (en) * | 2011-07-14 | 2013-01-31 | Chugoku Electric Power Co Inc:The | Transposition insulator |
| KR20180057866A (en) * | 2016-11-23 | 2018-05-31 | 주식회사 성진 | Jumper Insulator And Method |
| CN207909600U (en) * | 2018-02-02 | 2018-09-25 | 海南电网有限责任公司电力科学研究院 | A kind of pollution flashover preventing insulator device |
| CN209312503U (en) * | 2019-01-29 | 2019-08-27 | 江西省萍乡市南坑高压电瓷厂 | A kind of adjustable pillar insulator |
| CN210637639U (en) * | 2019-06-18 | 2020-05-29 | 北京大起空调有限公司天津分公司 | Sealing device for airtightness detection of straight aluminum pipe |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4421343A1 (en) * | 1994-06-17 | 1995-12-21 | Hoechst Ceram Tec Ag | High voltage ceramic insulator |
| JP2907210B1 (en) * | 1998-06-23 | 1999-06-21 | 大同電機工業株式会社 | Tower support mechanism of tower multi-point support tension insulator device |
| CN105761848B (en) * | 2016-04-28 | 2017-10-27 | 胡妍 | Adjustable height insulator |
| CN206227941U (en) * | 2016-08-29 | 2017-06-09 | 余浩亮 | A kind of screw rod rotation regulation lifting leg |
| CN210378618U (en) * | 2019-08-23 | 2020-04-21 | 苏州九维电气制造有限公司 | AC disk-shaped suspension porcelain insulator |
-
2020
- 2020-06-29 CN CN202010609788.1A patent/CN111599543B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013020916A (en) * | 2011-07-14 | 2013-01-31 | Chugoku Electric Power Co Inc:The | Transposition insulator |
| KR20180057866A (en) * | 2016-11-23 | 2018-05-31 | 주식회사 성진 | Jumper Insulator And Method |
| CN207909600U (en) * | 2018-02-02 | 2018-09-25 | 海南电网有限责任公司电力科学研究院 | A kind of pollution flashover preventing insulator device |
| CN209312503U (en) * | 2019-01-29 | 2019-08-27 | 江西省萍乡市南坑高压电瓷厂 | A kind of adjustable pillar insulator |
| CN210637639U (en) * | 2019-06-18 | 2020-05-29 | 北京大起空调有限公司天津分公司 | Sealing device for airtightness detection of straight aluminum pipe |
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| CN111599543A (en) | 2020-08-28 |
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