CN101814712B - Flexible sealing device for oil-filled terminal - Google Patents
Flexible sealing device for oil-filled terminal Download PDFInfo
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- CN101814712B CN101814712B CN2010101571740A CN201010157174A CN101814712B CN 101814712 B CN101814712 B CN 101814712B CN 2010101571740 A CN2010101571740 A CN 2010101571740A CN 201010157174 A CN201010157174 A CN 201010157174A CN 101814712 B CN101814712 B CN 101814712B
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- oil
- filled terminal
- cable
- rubber seal
- sealing
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Abstract
The invention discloses a flexible sealing device for an oil-filled terminal. The oil-filled terminal comprises a cable insulating shield and a bottom plate sleeved on the cable insulating shield. The oil-filled terminal is characterized by also comprising a rubber sealing tube, wherein the section of the rubber sealing tube has a shape of truncated bell jar, the small end of the bell jar-shaped rubber sealing tube is sleeved on a cable, and the large end of the bell jar-shaped rubber sealing tube is sleeved on the bottom plate. The adopted rubber material sealing tube is matched with two hoops for shrinkage and fixation respectively so as to play a role in double sealing. Meanwhile, because the rubber material sealing tube is flexibly sealed, shift of a certain position is allowed between the cable and the bottom plate; and because a stress cone, a tail tube and a sealing structure are mutually independent and mutually non-interferential, so the shift of the position does not affect the performance of a product. In addition, the flexible sealing device has the advantages of reasonable structure, reliable performance and convenient assembly.
Description
Technical field
The present invention relates to oil-filled terminal, especially relate to a kind of flexible seal device that is used for oil-filled terminal.
Background technology
The sealing of oil-filled terminal is the key issue in the electric cable accessories, if deal with improperly, leakage of oil can take place, and causes that finally annex lost efficacy, thereby causes electric power accident.Lot of domestic and foreign electric cable accessories producer finds out various apparatus and method and realizes sealing, has plenty of and adopts the method for warding off lead to seal; Have with the sealing that connects together of stress cone and base plate; Have plenty of to adopt and hold the band sealing; Also have plenty of the disc type of employing sheet rubber and compress sealing with tail pipe.
Yet; All these methods all exist such or such deficiency and defective; Warding off plumbous method is a kind of hermetically-sealed construction than European producer morning; This method all has very high requirement to workmen's the technical merit and the material of site environment and use, and the corrugated aluminium mouth also requires with blocking water band sealing, and sealing difficulty is very big; The sealing that connects together of stress cone and base plate, its shortcoming is the position changing of the relative positions of cable, can cause the semiconductive mouth of cable and the changing of the relative positions of stress cone position, if surpass the scope that allows, can cause that stress cone lost efficacy; The shortcoming that holds the band sealing is conspicuous, and is very high to workmen's technical merit and site environment requirement equally, and the aging of band can cause seal failure too; The disc type sheet rubber compresses sealing with tail pipe, is the at present American-European method more widely of using of comparison, and the effect of use is also satisfied, if but need dismantle tail pipe during maintenance the time, will cause that leakage of oil or discovery tail pipe can't dismantle at all.
Therefore, various in the actual life because still frequently generation of the electric power accident that poor sealing causes.
Summary of the invention
For solving the deficiency of prior art; The object of the present invention is to provide a kind of flexible seal device of oil-filled terminal; This installs good seal; Allow simultaneously to exist between cable and the stress cone upper and lower displacement in the certain limit again, even and when maintenance the dismounting tail pipe do not influence the sealing effectiveness at terminal yet.
To achieve these goals, the present invention realizes through following technical scheme:
A kind of flexible seal device that is used for oil-filled terminal; Said oil-filled terminal comprises insulation shield; Be socketed in the base plate on the said insulation shield, it is characterized in that: it also comprises a rubber seal pipe, and said rubber seal tube section is the bell shape of pushing up; The small end of said bell shape rubber seal pipe is socketed on the said cable, and the big end of said bell shape rubber seal pipe is socketed on the said base plate.
Preferably, the big end of said bell shape rubber seal pipe and said base plate interference fit.
Preferably, the small end of said bell shape rubber seal pipe and said cable interference fit.
Preferably, said bell shape rubber seal Guan Daduan and small end are respectively arranged with at least one clip.
Preferably, said clip can be metal clip or nylon ply-yarn drill.
Preferably, said bell shape rubber seal Guan Daduan and small end are respectively arranged with the clip that two fractures are the angle setting.
Preferably, the fracture angle of said clip is that 90 degree are to 180 degree.
Preferably, dismountable shrinkage expansion bar that is provided with in the said rubber seal pipe.
The present invention is owing to adopted the elastomeric material sealed tube; Make the upper end of sealed tube and the insulation shielding of cable cross the win cooperation, the lower end is crossed to win with base plate and is cooperated, and is equipped with two clips more respectively and shrinks fixing; And the angle setting of staggering again of the fracture of two clips, the effect of dual-seal is so just arranged.Simultaneously; Because this elastomeric material sealed tube is kind of a flexible sealing, just allow can have between cable and the base plate play of certain position, and because stress cone and tail pipe and hermetically-sealed construction are separate; Non-interfering, thereby moving of position do not influence performance of products.In addition, the present invention also has rational in infrastructure, dependable performance, convenient installation.
Description of drawings
Fig. 1 is the cutaway view of the oil-filled terminal of use flexible seal device of the present invention;
Fig. 2 is the cutaway view of the sealed tube among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
As shown in Figure 1, the oil-filled terminal of use flexible seal device of the present invention comprises crimping rod 1, cable 2, is socketed in stress cone 3, insulation shield fracture 4, nylon ply-yarn drill 5, rubber seal pipe 6, base plate 7 and tail pipe 8 on the cable 2.Wherein, base plate 7 comprises an annular installation sleeve 9, and base plate 7 is socketed on the insulation shielding of cable 2 through installation sleeve 9.
Inventive concept of the present invention mainly is to solve base plate 7 and cable 2, the especially sealing problem of insulation shield junction.
The present invention uses elastomeric material to expand into the sealed tube 6 that the cross section is the bell shape of pushing up through special process equipment, and is as shown in Figure 2.Sealed tube 6 is a cold-contraction type; Be provided with shrinkage expansion bar (not shown) in it; Sealed tube 6 is socketed in base plate 7 and insulation shield junction; Extract shrinkage expansion bar out, the contracting of small end interference fit of sealed tube 6 is enclosed within on the insulation shield, and sealed tube 6 big contracting of interference fit of end are enclosed within on the base plate 7 annular installation sleeves 9.Under the normal situation; The interference fit of sealed tube 6 and insulation shield and annular installation sleeve 9; The sealing to here meets the demands fully, but in order to make sealing safer, also is provided with two nylon ply-yarn drills 5 respectively in the outside at sealed tube 6 and the interference fit two ends of insulation shield and annular installation sleeve 9; The outside of sealed tube 6 has rigid pressure again like this, makes sealing more safe and reliable.The fracture of sealed tube 6 every ends two nylon ply-yarn drills 5 side by side is not together simultaneously, but angled setting, the scope of angle is preferably in 90 and spends between 180 degree, so just avoids the leakage at nylon ply-yarn drill 5 incision positions.
Annular installation sleeve 9 clamping nylon ply-yarn drills 5 places of base plate 7 are processed with the bayonet socket of special shape, thereby have guaranteed can not slide between sealed tube 6 and the base plate 7.When cable when a little moves about in the of 2, only can move, and, be being tightly connected of a kind of flexibility because sealed tube 6 is that rubber is processed in the upper end of sealed tube 6, moving of a little can not damage hermetically-sealed construction.
The benefit of this hermetically-sealed construction is; Stress cone 3 is not have related absolute construction with sealing device with tail pipe 8, the moving of a little of cable 2, and stress cone 3 can move along with cable; Relative position between them can not change, thus the effect of the release electric field stress of proof stress awl 3.And the dismounting of tail pipe 8 and sealing device are that it doesn't matter, thereby can dismantle tail pipe 8 when guaranteeing maintenance at ordinary times.
Can find out the hermetically-sealed construction of this flexibility, the various shortcoming before having avoided since sealed tube adopt factory's predilation built-in shrinkage expansion bar, make that on-the-spot installation is very convenient, the installation effectiveness of raising shortens the set-up time.
The foregoing description does not limit the present invention in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in protection scope of the present invention.
Claims (7)
1. flexible seal device that is used for oil-filled terminal; Said oil-filled terminal comprises cable, is socketed in the base plate on the said cable, it is characterized in that: it also comprises a rubber seal pipe; Said rubber seal tube section is the bell shape of pushing up; The small end of said bell shape rubber seal pipe is socketed on the said insulation shield, and the big end of said bell shape rubber seal pipe is socketed on the said base plate, and said bell shape rubber seal Guan Daduan and small end are respectively arranged with at least one clip.
2. the flexible seal device that is used for oil-filled terminal according to claim 1 is characterized in that: the big end of said bell shape rubber seal pipe and said base plate interference fit.
3. the flexible seal device that is used for oil-filled terminal according to claim 1 is characterized in that: the small end of said bell shape rubber seal pipe and said cable interference fit.
4. the flexible seal device that is used for oil-filled terminal according to claim 3 is characterized in that: said clip can be metal clip or nylon ply-yarn drill.
5. according to each described flexible seal device that is used for oil-filled terminal in the claim 1 to 4, it is characterized in that: said bell shape rubber seal Guan Daduan and small end are respectively arranged with fracture and are two clips that angle is provided with.
6. the flexible seal device that is used for oil-filled terminal according to claim 5 is characterized in that: the fracture angle of said clip is that 90 degree are to 180 degree.
7. according to each described flexible seal device that is used for oil-filled terminal in the claim 1 to 4, it is characterized in that: dismountable shrinkage expansion bar that is provided with in the said rubber seal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101571740A CN101814712B (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil-filled terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101571740A CN101814712B (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil-filled terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101814712A CN101814712A (en) | 2010-08-25 |
| CN101814712B true CN101814712B (en) | 2012-05-30 |
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ID=42621864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101571740A Expired - Fee Related CN101814712B (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil-filled terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101814712B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538924A (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | Split type oil filling outdoor terminal and sealing structure thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19856025C2 (en) * | 1998-12-04 | 2000-11-02 | Felten & Guilleaume Kabelwerk | Compact transition sleeve |
| CN100359774C (en) * | 2002-11-22 | 2008-01-02 | 上海三原电缆附件有限公司 | Dry terminal for high-voltage cross-linked cable gas-insulation switch and installation method |
| CN201113373Y (en) * | 2007-03-15 | 2008-09-10 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV cross linkage cable filling open air terminal |
| CN201674200U (en) * | 2010-04-26 | 2010-12-15 | 南京业基电气设备有限公司 | Flexible sealing device for oil charge terminal |
-
2010
- 2010-04-26 CN CN2010101571740A patent/CN101814712B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101814712A (en) | 2010-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU YUCHENG YEJI ELECTRIC EQUIPMENT CO., LTD. Free format text: FORMER OWNER: NANJING YEJI ELECTRIC DEVICE CO., LTD. Effective date: 20141030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20141030 Address after: Airport hub Economic Zone bell Jiangning Development Zone in Nanjing City, Jiangsu province 211151 crafts Road No. 4 Patentee after: Jiangsu Yucheng industry base electrical equipment Co., Ltd. Address before: Jiangning Economic Development Zone, Nanjing City, Jiangsu province 211151 Metro Airport Industrial Park Avenue South City Industrial Park Patentee before: Nanjing Yeji Electric Device Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170426 |