CN108736423B - Corona-proof device applied to power transmission wire clamp - Google Patents
Corona-proof device applied to power transmission wire clamp Download PDFInfo
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- CN108736423B CN108736423B CN201810518322.3A CN201810518322A CN108736423B CN 108736423 B CN108736423 B CN 108736423B CN 201810518322 A CN201810518322 A CN 201810518322A CN 108736423 B CN108736423 B CN 108736423B
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- top surface
- shaped elastic
- power transmission
- clamp
- corona
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses an anti-corona device applied to a power transmission wire clamp, which comprises a metal mask and an elastic clamp arranged on the metal mask, wherein the metal mask comprises a top surface and four side surfaces, edges of the top surface are in smooth round corner transition, a through hole for a bolt on the power transmission wire clamp to pass through is arranged on the top surface, the elastic clamp is provided with a U-shaped elastic clamping part used for clamping the bolt, a triggering part used for propping open the U-shaped elastic clamping part is arranged on the top surface, and the triggering part can move in a direction vertical to the top surface to release the U-shaped elastic clamping part. The corona prevention device aims to solve the technical problem that corona discharge is generated at a wire clamp of a high-voltage transmission line in the prior art due to the fact that a structure with an excessively small curvature radius exists.
Description
Technical Field
The invention relates to the field of transmission line hardware fittings, in particular to an anti-corona device applied to a transmission line clamp.
Background
The design and the application condition of the electrified hardware fitting of the power transmission line are related to the surface working field intensity of the electrified hardware fitting, and when the surface working field intensity is higher than the corona starting field intensity, corona discharge can be generated on the surface of the hardware fitting. The magnitude of the hardware working field intensity is closely related to the hardware structure, and researches show that the smaller the curvature radius of the hardware surface, the higher the surface working field intensity is, the more easily corona discharge occurs at the part under the same voltage action, thereby generating corona noise and electric energy loss, and being not beneficial to energy conservation and environmental protection.
The positions of the existing transmission wire clamps connected through bolts have many places with undersize curvature radiuses, and in addition, due to the requirement of maintenance purposes, some temperature detection devices, bolt anti-loosening devices and the like are often installed on the surfaces of the transmission wire clamps to generate surfaces with undersize curvature radiuses, so that corona discharge phenomena and electric energy loss always exist on some high-voltage lines. However, no product is designed for reducing corona discharge of the wire clamp in the prior art.
In view of the above, there is a need to provide an anti-corona device for power transmission line clamp to overcome or at least alleviate the above-mentioned drawbacks.
Disclosure of Invention
The invention mainly aims to provide an anti-corona device applied to a power transmission wire clamp, and the device for reducing corona discharge aims to solve the technical problem that corona discharge is generated at the position of a high-voltage power transmission line wire clamp in the prior art due to a structure with an excessively small curvature radius.
In order to achieve the purpose, the corona prevention device applied to the power transmission wire clamp is characterized by comprising a metal cover and an elastic clamp installed on the metal cover, wherein the metal cover comprises a top surface and four side surfaces, edges of the top surface are in smooth round corner transition, a through hole for a bolt on the power transmission wire clamp to penetrate through is formed in the top surface, the elastic clamp is provided with a U-shaped elastic clamping portion used for clamping the bolt, a triggering portion used for propping open the U-shaped elastic clamping portion is arranged on the top surface, and the triggering portion can move in a direction perpendicular to the top surface to release the U-shaped elastic clamping portion.
Preferably, the elastic clamp comprises 4C-shaped elastic mounting portions and 4U-shaped elastic clamping portions, and the C-shaped elastic mounting portions and the U-shaped elastic clamping portions are sequentially and alternately connected together.
Preferably, the trigger part include in proper order with first end and the second end that the top surface is connected, the width of first end is greater than the spiral shell footpath of bolt, the width of second end is less than the spiral shell footpath of bolt, the second end perpendicular to the top surface just is close to the through-hole.
Preferably, the first end is provided with a groove cooperating with the elastic clip.
The device has no sharp bulge and the like on the whole structure after installation so that the part with the over-small curvature radius is generated, and the top surface and the side surface of the mask are in smooth transition, thereby having a good corona-proof structure. The temperature detection device, the bolt anti-loosening device and the like which cause the local surface to have the curvature radius undersize part are covered below the face cover of the device by the aid of the nut and other convex structures on the wire clamp and surface mounting, the overall surface working field intensity of the power transmission wire clamp can be effectively improved, and corona discharge is reduced or avoided. Moreover, the device is convenient to install, is easy for high-altitude operation personnel to construct, and can be directly applied to the existing power transmission wire clamp.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of an embodiment of an anti-corona device of the present invention applied to a power transmission clamp;
FIG. 2 is a perspective view of an anti-corona device according to an embodiment of the present invention;
FIG. 3 is a partial schematic view of an uninstalled state of the corona prevention device of the embodiment of the present invention;
FIG. 4 is a partial schematic view of the installation state of the corona-proof device according to the embodiment of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | Hook for hanging |
| 12 | |
13 | Groove |
| 21 | U-shaped elastic clamping part | 22 | C-shaped |
| 30 | Power |
40 | |
| 41 | Nut |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1 to 4, the corona prevention device applied to the power transmission wire clamp provided by the invention comprises a metal cover 10 and an elastic clamp installed on the metal cover 10, wherein the metal cover 10 comprises a top surface and four side surfaces, edges of the top surface are in smooth round corner transition, a through hole for a bolt 40 on the power transmission wire clamp 30 to pass through is arranged on the top surface, the elastic clamp is provided with a U-shaped elastic clamping portion 21 for clamping the bolt 40, a triggering portion 12 for expanding the U-shaped elastic clamping portion 21 is arranged on the top surface, and the triggering portion 12 can move in a direction perpendicular to the top surface to release the U-shaped elastic clamping portion 21.
Preferably, the elastic clip comprises 4C-shaped elastic mounting portions 22 and 4U-shaped elastic clamping portions 21, and the C-shaped elastic mounting portions 22 and the U-shaped elastic clamping portions 21 are alternately connected together in sequence.
The elastic clamp can be made of a wire spring directly, one wire spring is bent into 4C-shaped elastic mounting parts 22 and 4U-shaped elastic clamping parts 21, and finally two ends of the wire spring are welded together. The C-shaped structure of the C-shaped elastic mounting portion 22 can better provide the U-shaped elastic clamping portion 21 with the deformation supplement amount required for clamping or expanding, and in addition, the U-shaped elastic clamping portion 21 can be conveniently expanded and assembled with the triggering portion 12 by pinching two ends of the C-shaped structure. The U-shaped elastic clamping part 21 is arranged at a through hole on the metal mask 10, and the top of the metal mask 10 is also provided with a hook 11 for fixing a C-shaped elastic mounting part 22.
Preferably, the trigger part 12 and the hook 11 are both formed by punching the top of the metal mask 10, the trigger part includes a first end and a second end, the width of the first end is greater than the diameter of the bolt, the width of the second end is less than the diameter of the bolt, and the second end is perpendicular to the top surface and close to the through hole. The first end is also provided with a groove 13 which is matched with the U-shaped elastic clamping part 21. Referring to fig. 3, when the device is not installed, the U-shaped elastic clamping portion 21 is in an expanded state and is matched with the groove 13, when the device is installed, the metal mask 10 is placed on a correct installation position of the power transmission wire clamp (4 bolts of the power transmission wire clamp respectively pass through 4 through holes on the metal mask 10), at this time, the second end close to the through holes abuts against the nut 41, the top surface of the metal mask 10 (especially, positions on two sides of the triggering portion 12) is pressed downwards, the triggering portion 12 forms a staggered displacement in a direction perpendicular to the top surface relative to the top surface, and the U-shaped elastic clamping portion 21 breaks away from the groove 13 under the extrusion of the top surface and falls to the position of the second end to clamp the bolt 40, specifically, the bolt is clamped in a thread gap of the screw. (as shown in figure 4)
The device has no sharp bulge and the like on the whole structure after installation so that the part with the over-small curvature radius is generated, and the top surface and the side surface of the mask are in smooth transition, thereby having a good corona-proof structure. The temperature detection device, the bolt anti-loosening device and the like which cause the local surface to have the curvature radius undersize part are covered below the face cover of the device by the aid of the nut and other convex structures on the wire clamp and surface mounting, the overall surface working field intensity of the power transmission wire clamp can be effectively improved, and corona discharge is reduced or avoided. Moreover, the device is convenient to install, is easy for high-altitude operation personnel to construct, and can be directly applied to the existing power transmission wire clamp.
The metal mask 10 is preferably made of 304 stainless steel, 310s stainless steel or 201 stainless steel as a whole. The materials have good corrosion resistance and rust resistance so as to adapt to high-altitude operation environment.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (3)
1. The corona prevention device for the power transmission wire clamp is characterized by comprising a metal mask and an elastic clamp installed on the metal mask, wherein the metal mask comprises a top surface and four side surfaces, edges of the top surface are in smooth fillet transition, a through hole for a bolt on the power transmission wire clamp to pass through is formed in the top surface, the elastic clamp is provided with a U-shaped elastic clamping portion used for clamping the bolt, a triggering portion used for propping open the U-shaped elastic clamping portion is arranged on the top surface, and the triggering portion can move in a direction perpendicular to the top surface to release the U-shaped elastic clamping portion; trigger part including in proper order with first end and the second end that the top surface is connected, the width of first end is greater than the spiral shell footpath of bolt, the width of second end is less than the spiral shell footpath of bolt, the second end perpendicular to the top surface just is close to the through-hole.
2. The corona protection device for a power transmission line clamp as claimed in claim 1, wherein said elastic clamp includes 4C-shaped elastic mounting portions and 4U-shaped elastic clamping portions, said C-shaped elastic mounting portions and said U-shaped elastic clamping portions being alternately connected in sequence.
3. The corona protection device as claimed in claim 1, wherein said first end is provided with a groove for engaging said resilient clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518322.3A CN108736423B (en) | 2018-05-27 | 2018-05-27 | Corona-proof device applied to power transmission wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810518322.3A CN108736423B (en) | 2018-05-27 | 2018-05-27 | Corona-proof device applied to power transmission wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736423A CN108736423A (en) | 2018-11-02 |
| CN108736423B true CN108736423B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810518322.3A Active CN108736423B (en) | 2018-05-27 | 2018-05-27 | Corona-proof device applied to power transmission wire clamp |
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|---|---|
| CN (1) | CN108736423B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108784052A (en) * | 2018-07-02 | 2018-11-13 | 黑龙江建筑职业技术学院 | Agro based economic development trend distribution deployment map device and application method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI110476B (en) * | 1999-06-02 | 2003-02-14 | Tanja Niemivuo | Auxiliary device for a waiter |
| CN202094573U (en) * | 2011-05-25 | 2011-12-28 | 中国电力科学研究院 | Anti-corona ball for power transmission lines of high-altitude regions |
| CN202216972U (en) * | 2011-07-25 | 2012-05-09 | 东北电力科学研究院有限公司 | Voltage-sharing cap of high-voltage bushing of 66kV transformer |
| CN103515918B (en) * | 2012-06-26 | 2016-12-28 | 3M创新有限公司 | Grading shield assembly |
| CN204332552U (en) * | 2014-07-09 | 2015-05-13 | 衡阳华瑞电气有限公司 | A kind of grading shield |
| CN204859491U (en) * | 2015-06-29 | 2015-12-09 | 芜湖创智机械技术有限公司 | Clip for earphone |
| CN205176078U (en) * | 2015-11-20 | 2016-04-20 | 宁波理工监测科技股份有限公司 | A anticorona structure of high -pressure side that is used for oscillating wave office to put test system |
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| CN108736423A (en) | 2018-11-02 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200324 Address after: 325600 No.155, Hongdan Road, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Yueqing Haichuang Intelligent Technology Co., Ltd Address before: 224100 Room 903, building 5, vertical garden, Jinfeng South Road, Dafeng District, Yancheng City, Jiangsu. Applicant before: Xu Feng |
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Effective date of registration: 20210615 Address after: 136000 No.298, Dongtai street, Tiedong Economic Development Zone, Tiedong District, Siping City, Jilin Province Patentee after: CHINA POWER CONSTRUCTION GROUP SIPING LINE EQUIPMENT Co.,Ltd. Address before: 325600 155 Hongdan Road, Hongqiao Town, Yueqing City, Wenzhou City, Zhejiang Province Patentee before: Yueqing Haichuang Intelligent Technology Co.,Ltd. |
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