CN113257498A - Insulator with adjustable discharge gap - Google Patents
Insulator with adjustable discharge gap Download PDFInfo
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- CN113257498A CN113257498A CN202110679044.1A CN202110679044A CN113257498A CN 113257498 A CN113257498 A CN 113257498A CN 202110679044 A CN202110679044 A CN 202110679044A CN 113257498 A CN113257498 A CN 113257498A
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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
- H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges
- H01B17/46—Means for providing an external arc-discharge path
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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
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
- H01B17/40—Cementless fittings
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Abstract
本申请涉及绝缘子技术领域，特别涉及一种可调节放电间隙的绝缘子，包括钢帽、陶瓷件、钢脚、上电极、下电极和绝缘件；所述钢帽设置于所述陶瓷件的顶部；所述上电极与所述钢帽连接；所述钢脚设置于所述陶瓷件的底部；所述下电极与所述钢脚连接，且所述下电极与所述上电极之间相隔一段距离；所述绝缘件的第一端与所述上电极滑动连接，所述绝缘件的第二端与所述下电极可拆卸连接。本申请有效地解决了现有技术中存在难于调节放电间隙的技术问题。
The present application relates to the technical field of insulators, in particular to an insulator with adjustable discharge gap, comprising a steel cap, a ceramic piece, a steel foot, an upper electrode, a lower electrode and an insulating piece; the steel cap is arranged on the top of the ceramic piece; The upper electrode is connected with the steel cap; the steel foot is arranged on the bottom of the ceramic piece; the lower electrode is connected with the steel foot, and there is a distance between the lower electrode and the upper electrode ; The first end of the insulating member is slidably connected to the upper electrode, and the second end of the insulating member is detachably connected to the lower electrode. The present application effectively solves the technical problem that it is difficult to adjust the discharge gap in the prior art.
Description
Technical Field
The application relates to the technical field of insulators, in particular to an insulator with an adjustable discharge gap.
Background
The ground wire insulator is used for supporting a ground wire in the overhead line, and when the line normally runs, the ground wire is insulated from a grounding end; when the ground wire is struck by lightning and the voltage exceeds the specified value, the gap discharges, and the ground wire is conducted with the grounding end through the gap, so that the normal operation of the overhead transmission line is ensured, and high-quality power service is provided. When the discharge gap is installed, different gap requirements are required for the discharge gap according to different regions, different lines and different natural environments. The existing ground wire insulator can not realize the adjustment of the discharge gap or is difficult to adjust the discharge gap, and can not meet the requirements of different installation scenes on different discharge gaps.
Disclosure of Invention
In view of this, an object of the present invention is to provide an insulator capable of adjusting a discharge gap, which effectively solves the technical problem in the prior art that it is difficult to adjust the discharge gap.
In order to achieve the purpose, the application provides the following technical scheme:
an insulator capable of adjusting a discharge gap comprises a steel cap, a ceramic piece, a steel pin, an upper electrode, a lower electrode and an insulating piece;
the steel cap is arranged at the top of the ceramic piece;
the upper electrode is connected with the steel cap;
the steel foot is arranged at the bottom of the ceramic piece;
the lower electrode is connected with the steel foot, and a distance is reserved between the lower electrode and the upper electrode;
the first end of the insulating part is connected with the upper electrode in a sliding mode, and the second end of the insulating part is connected with the lower electrode in a rotating mode.
Preferably, in the above insulator, the upper electrode is provided with a slide hole;
and a sliding part matched with the sliding hole is arranged at the first end of the insulating part.
Preferably, in the above insulator, the sliding member is a right-angle double-headed screw;
the first end of the right-angle double-thread screw is in threaded connection with the insulating part;
and the second end of the right-angle double-thread screw penetrates through the sliding hole to be connected with the first nut, so that the first end of the insulating part is slidably arranged on the upper electrode.
Preferably, in the above insulator, the upper electrode is detachably connected to the steel cap.
Preferably, in the above insulator, a first clamping piece is further included;
the upper electrode is provided with a second clamping piece corresponding to the first clamping piece;
the first clamping piece is connected with the second clamping piece and used for forming a clamping space for clamping and fixing the steel cap together.
Preferably, in the above insulator, the first clamping piece and the second clamping piece are both semicircular;
a first bolt and a second nut are arranged on two sides of the first clamping piece;
the first clamping piece is fixedly connected with the second clamping piece through the first bolt and the second nut.
Preferably, in the above insulator, the upper electrode includes a first connecting member and a second connecting member;
the first end of the first connecting piece is connected with the second clamping piece, and the second end of the first connecting piece is connected with the second connecting piece at an angle.
Preferably, in the above insulator, the lower electrode is detachably connected to the steel leg.
Preferably, in the insulator, the lower electrode is provided with an arc portion.
Preferably, in the above insulator, two mounting lugs are provided on the steel cap;
the two mounting lugs are provided with corresponding mounting holes;
the mounting hole is provided with a cylindrical pin and a closed pin.
Compared with the prior art, the beneficial effects of this application are:
the application provides an insulator of adjustable discharge gap, through be provided with the insulating part between last electrode and bottom electrode, just the first end of insulating part with go up electrode sliding connection, the second end of insulating part with the connection can be dismantled to the bottom electrode, can slide on last electrode through the insulating part according to the needs of line design, can adjust the discharge gap between the bottom electrode to provide more reliable clearance and stability, make the discharge gap not influenced by the installation factor, and the fixed can not change of clearance distance among the operation process, the suitability is better, has satisfied the demand that different installation scenes required different discharge gaps, has solved effectively and has had the technical problem that is difficult to adjust discharge gap among the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 2 is a top view of an insulator with an adjustable discharge gap according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a steel cap of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a ceramic part of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a steel leg of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an upper electrode of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 7 is a top view of a connection between an upper electrode of an insulator and a first clamping member for adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of a lower electrode of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of a right-angle double-headed screw of an insulator capable of adjusting a discharge gap according to an embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of an insulating member of an insulator capable of adjusting a discharge gap according to an embodiment of the present application.
In the figure:
the electrode assembly comprises a lower electrode 1, an arc part 11, an upper electrode 2, a slide hole 21, a second clamping piece 22, a first connecting piece 23, a second connecting piece 24, a steel cap 3, a mounting lug 31, a ceramic piece 4, a steel pin 5, an insulating piece 6, a right-angle double-headed screw 7, a first nut 71, a cylindrical pin 8, a closed pin 81, a first clamping piece 9, a first bolt 91 and a second nut 92.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The ground wire insulator is used for supporting a ground wire in the overhead line, and when the line normally runs, the ground wire is insulated from a grounding end; when the ground wire is struck by lightning and the voltage exceeds the specified value, the gap discharges, and the ground wire is conducted with the grounding end through the gap, so that the normal operation of the overhead transmission line is ensured, and high-quality power service is provided. When the discharge gap is installed, different gap requirements are required for the discharge gap according to different regions, different lines and different natural environments. The existing ground wire insulator can not realize the adjustment of the discharge gap or is difficult to adjust the discharge gap, and can not meet the requirements of different installation scenes on different discharge gaps. The embodiment provides the insulator capable of adjusting the discharge gap, and the technical problem that the discharge gap is difficult to adjust in the prior art is effectively solved.
Referring to fig. 1 to 10, an embodiment of the present invention provides an insulator with an adjustable discharge gap, including a steel cap 3, a ceramic part 4, a steel pin 5, an upper electrode 2, a lower electrode 1, and an insulating part 6; the steel cap 3 is arranged at the top of the ceramic piece 4; the upper electrode 2 is connected with the steel cap 3; the steel feet 5 are arranged at the bottom of the ceramic piece 4; the lower electrode 1 is connected with the steel foot 5, and a distance is reserved between the lower electrode 1 and the upper electrode 2; the first end of the insulating part 6 is connected with the upper electrode 2 in a sliding way, and the second end of the insulating part 6 is detachably connected with the lower electrode 1.
More specifically, the ceramic part 4 is also the umbrella skirt part of the insulator, the steel cap 3 is fixedly arranged at the top of the ceramic part 4, and the steel foot 5 is fixedly arranged at the bottom of the ceramic part 4; referring to fig. 1, the first end of the insulating member 6 is a top end, the second end of the insulating member 6 is a bottom end, and the bottom end of the insulating member 6 is detachably connected to the lower electrode 1 through a fastening member.
This embodiment is through being provided with insulating part 6 between last electrode 2 and bottom electrode 1, and the first end and the last electrode 2 sliding connection of insulating part 6, the second end and the bottom electrode 1 detachable connection of insulating part 6, can be according to line design's needs, slide on last electrode 2 through insulating part 6, can adjust the discharge gap between the bottom electrode 1, and provide more reliable clearance and stability, make the discharge gap not influenced by the installation factor, and the fixed can not change of gap distance among the operation process, the suitability is better, the demand that different installation scene required different discharge gaps has been satisfied, the technical problem that the existence is difficult to adjust the discharge gap among the prior art has been solved effectively.
Further, in the present embodiment, the upper electrode 2 is provided with a slide hole 21; the first end of the insulating member 6 is provided with a sliding member matching the sliding hole 21. Because one end of the upper electrode 2 is fixedly connected with the steel cap 3 and one end of the lower electrode 1 is fixedly connected with the steel foot 5, when the sliding part of the insulating part 6 moves in the sliding hole 21, the upper electrode 2 and the lower electrode 1 can be properly opened, thereby achieving the purpose of adjusting the discharge gap between the upper electrode 2 and the lower electrode 1.
More specifically, the length of the slide hole 21 directly affects the adjustment range of the discharge gap, and the length of the slide hole 21 can be designed according to actual needs.
Further, in the present embodiment, please refer to fig. 1, fig. 2 and fig. 9, the sliding member is specifically a right-angle double-threaded screw 7; the first end of the right-angle double-thread screw 7 is in threaded connection with the insulating part 6; the second end of the right-angle double-headed screw 7 is connected to the first nut 71 through the slide hole 21 so that the first end of the insulator 6 is slidably mounted on the upper electrode 2. Through the arrangement of the right-angle double-headed screw 7 and the first nut 71, the detachable connection between the insulating part 6 and the upper electrode 2 can be ensured, and the requirement that the top end of the insulating part 6 and the upper electrode 2 are in sliding adjustable connection can be met. The discharge gap between the upper electrode 2 and the lower electrode 1 is adjusted by adjusting the right-angle double-headed screw 7 and the second nut 92, so that more reliable gap and stability are provided, the discharge gap is not influenced by installation factors, the gap distance in the operation process is fixed and cannot be changed, and the applicability is better.
More specifically, the right-angle double-thread screw 7 includes a vertical section and a horizontal section, and referring to fig. 10, a thread groove matched with the vertical section is formed at the top end of the insulating member 6, and a first nut 71 for preventing the insulating member 6 from loosening from the vertical section is sleeved on the vertical section; the cover is equipped with two first nuts 71 on the horizontal segment, and two first nuts 71 are located the both sides of upper electrode 2 respectively, when right angle double-end screw 7 moved corresponding position for when reaching required discharge gap between upper electrode 2 and the lower electrode 1, the position of right angle double-end screw 7 in slide opening 21 is fixed to two first nuts 71 of accessible.
Further, in the present embodiment, the upper electrode 2 is detachably attached to the steel cap 3. The arrangement is convenient for the upper electrode 2 to be assembled and disassembled on the steel cap 3, the requirement for maintaining and replacing the upper electrode 2 is met, and the practicability is improved.
Further, in the present embodiment, a first clip member 9 is further included; the upper electrode 2 is provided with a second clamping piece 22 corresponding to the first clamping piece 9; the first clamping piece 9 is connected with the second clamping piece 22 and is used for forming a clamping space for clamping and fixing the steel cap 3 together. Can fix the centre gripping of steel cap 3 through the cooperation jointly of first folder 9 and second folder 22, not only can satisfy the demand for dismantling the connection between upper electrode 2 and the steel cap 3, but also can guarantee to be connected stably between upper electrode 2 and the steel cap 3.
Further, in the present embodiment, the first clamping member 9 and the second clamping member 22 are both semicircular; a first bolt 91 and a second nut 92 are arranged on both sides of the first clamping piece 9; the first clamp member 9 is fixedly connected to the second clamp member 22 by a first bolt 91 and a second nut 92. The clamping space formed by the first clamping piece 9 and the second clamping piece 22 can be contracted as much as possible through the two sets of first bolts 91 and second nuts 92, so that the inner wall of the first clamping piece 9 and the inner wall of the second clamping piece 22 can be attached to the surface of the steel cap 3, and the connection between the upper electrode 2 and the steel cap 3 is enhanced.
Further, in the present embodiment, the upper electrode 2 includes the first connection member 23 and the second connection member 24; a first end of the first connector 23 is connected to the second clip member 22 and a second end of the first connector 23 is connected to the second connector 24 at an angle. The upper electrode 2 designed by bending can properly reduce the transverse span of the insulator, thereby reducing the occupied space of the insulator and effectively increasing the discharge area, so that the discharge between the upper electrode 2 and the lower electrode 1 can be completed more quickly.
More specifically, the first end of the second connecting member 24 is connected to the second end of the first connecting member 23, and the second end of the second connecting member 24 is inclined upward in a direction close to the steel cap 3, which is advantageous in that the center of gravity of the entire insulator is closer to the center line of the ceramic member 4, so that the insulator is stably installed.
Further, in the present embodiment, the lower electrode 1 is detachably connected to the steel leg 5. The arrangement makes the lower electrode 1 convenient to be assembled and disassembled on the steel foot 5, meets the requirement of maintaining and replacing the lower electrode 1 and is beneficial to increasing the practicability of the lower electrode.
More specifically, a first connecting hole connected with the lower electrode 1 is formed in the steel foot 5, one end of the lower electrode 1 is connected with a second bolt, and the second bolt penetrates through the first connecting hole and is connected with a third nut, so that the lower electrode 1 and the steel foot 5 are fixedly connected; and a second connecting hole connected with the outside is further formed in the steel foot 5, so that the insulator can be conveniently installed on a power grid discharge line.
Further, in the present embodiment, the lower electrode 1 is provided with an arc portion 11. The arc part 11 is concave to the one side of keeping away from ceramic member 4, can suitably stagger ceramic member 4 through the setting of arc part 11 for arc part 11 keeps suitable distance with ceramic member 4, can greatly reduced low electrode 1 influence the probability of ceramic member 4 when discharging.
Further, in the present embodiment, two mounting lugs 31 are provided on the steel cap 3; the two mounting lugs 31 are provided with corresponding mounting holes; the mounting hole is provided with a cylindrical pin 8 and a closed pin 81. The two mounting lugs 31 are provided with corresponding mounting holes; the mounting hole is provided with a cylindrical pin 8 and a closed pin 81. The end of cylindric lock 8 be equipped with the through-hole that closes mouthful round pin 81 assorted, cylindric lock 8 passes two mounting holes and external component's through-hole to through the locking of pegging graft of a mouthful round pin 81, thereby realize steel cap 3 and external connection, make things convenient for whole insulator to install on the electric wire netting discharge line.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An insulator capable of adjusting a discharge gap is characterized by comprising a steel cap, a ceramic part, a steel pin, an upper electrode, a lower electrode and an insulating part;
the steel cap is arranged at the top of the ceramic piece;
the upper electrode is connected with the steel cap;
the steel foot is arranged at the bottom of the ceramic piece;
the lower electrode is connected with the steel foot, and a distance is reserved between the lower electrode and the upper electrode;
the first end of the insulating part is connected with the upper electrode in a sliding mode, and the second end of the insulating part is detachably connected with the lower electrode.
2. The insulator according to claim 1, wherein the upper electrode is provided with a slide hole;
and a sliding part matched with the sliding hole is arranged at the first end of the insulating part.
3. An insulator according to claim 2, characterised in that the sliding member is embodied as a right-angled double-ended screw;
the first end of the right-angle double-thread screw is in threaded connection with the insulating part;
and the second end of the right-angle double-thread screw penetrates through the sliding hole to be connected with the first nut, so that the first end of the insulating part is slidably arranged on the upper electrode.
4. The insulator according to claim 1, wherein the upper electrode is detachably connected with the steel cap.
5. The insulator of claim 4, further comprising a first clamp member;
the upper electrode is provided with a second clamping piece corresponding to the first clamping piece;
the first clamping piece is connected with the second clamping piece and used for forming a clamping space for clamping and fixing the steel cap together.
6. The insulator of claim 5 wherein the first and second clip members are each semi-circular;
a first bolt and a second nut are arranged on two sides of the first clamping piece;
the first clamping piece is fixedly connected with the second clamping piece through the first bolt and the second nut.
7. The insulator according to claim 5, wherein the upper electrode comprises a first connecting piece and a second connecting piece;
the first end of the first connecting piece is connected with the second clamping piece, and the second end of the first connecting piece is connected with the second connecting piece at an angle.
8. The insulator according to claim 1, wherein the lower electrode is detachably connected with the steel foot.
9. The insulator according to claim 1, wherein the lower electrode is provided with an arc-shaped portion.
10. An insulator according to any one of claims 1-9, wherein two mounting lugs are arranged on the steel cap;
the two mounting lugs are provided with corresponding mounting holes;
the mounting hole is provided with a cylindrical pin and a closed pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110679044.1A CN113257498B (en) | 2021-06-18 | 2021-06-18 | Insulator with adjustable discharge gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110679044.1A CN113257498B (en) | 2021-06-18 | 2021-06-18 | Insulator with adjustable discharge gap |
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| Publication Number | Publication Date |
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| CN113257498A true CN113257498A (en) | 2021-08-13 |
| CN113257498B CN113257498B (en) | 2022-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110679044.1A Active CN113257498B (en) | 2021-06-18 | 2021-06-18 | Insulator with adjustable discharge gap |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349645Y (en) * | 1998-08-14 | 1999-11-17 | 大连电瓷厂 | Bar-shaped suspension type ground wire insulator |
| CN203660276U (en) * | 2013-12-01 | 2014-06-18 | 国家电网公司 | Gap lightning protection device |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
| CN206685219U (en) * | 2017-03-15 | 2017-11-28 | 国网浙江省电力公司金华供电公司 | Lightning protection type insulator structure |
| CN108735402A (en) * | 2018-05-23 | 2018-11-02 | 安徽国电京润电力科技有限公司 | A kind of overvoltage automatic adjustment protective device |
| CN110534264A (en) * | 2019-09-05 | 2019-12-03 | 广东电网有限责任公司江门供电局 | A kind of band fixed interval (FI) aerial earth wire hanging type glass insulator |
| CN110829183A (en) * | 2019-11-20 | 2020-02-21 | 国网河南省电力公司漯河供电公司 | Lightning arrester for power transmission lines |
-
2021
- 2021-06-18 CN CN202110679044.1A patent/CN113257498B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349645Y (en) * | 1998-08-14 | 1999-11-17 | 大连电瓷厂 | Bar-shaped suspension type ground wire insulator |
| CN203660276U (en) * | 2013-12-01 | 2014-06-18 | 国家电网公司 | Gap lightning protection device |
| CN206685219U (en) * | 2017-03-15 | 2017-11-28 | 国网浙江省电力公司金华供电公司 | Lightning protection type insulator structure |
| CN106981346A (en) * | 2017-04-14 | 2017-07-25 | 山东莱芜电瓷有限公司 | A kind of fixed interval (FI) Zinc-Oxide Arrester |
| CN108735402A (en) * | 2018-05-23 | 2018-11-02 | 安徽国电京润电力科技有限公司 | A kind of overvoltage automatic adjustment protective device |
| CN110534264A (en) * | 2019-09-05 | 2019-12-03 | 广东电网有限责任公司江门供电局 | A kind of band fixed interval (FI) aerial earth wire hanging type glass insulator |
| CN110829183A (en) * | 2019-11-20 | 2020-02-21 | 国网河南省电力公司漯河供电公司 | Lightning arrester for power transmission lines |
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|---|---|
| CN113257498B (en) | 2022-06-21 |
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