CN201674200U - Flexible sealing device for oil charge terminal - Google Patents
Flexible sealing device for oil charge terminal Download PDFInfo
- Publication number
- CN201674200U CN201674200U CN2010201719137U CN201020171913U CN201674200U CN 201674200 U CN201674200 U CN 201674200U CN 2010201719137 U CN2010201719137 U CN 2010201719137U CN 201020171913 U CN201020171913 U CN 201020171913U CN 201674200 U CN201674200 U CN 201674200U
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- CN
- China
- Prior art keywords
- oil
- cable
- rubber seal
- bell shape
- filled terminal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a flexible sealing device for an oil charge terminal. The oil charge terminal comprises a cable insulation shield and a bottom plate sleeved on the cable insulation shield and is characterized by also comprising a rubber sealing tube. The cross section of the sealing tube is in a truncated bell jar shape; the small end of the bell jar-shaped rubber sealing tube is sleeved on a cable, and the big end thereof is sleeved on the bottom plate. In the utility model, due to the fact that the rubber sealing tube is adopted, and two clamps are respectively matched to shrink and fix the rubber sealing tube to take the dual-sealing action. Simultaneously, the rubber sealing tube is a flexible sealing tube, certain space can exist between the cable and the bottom plate to allow the cable and the bottom plate to move, whereas a stress cone and a tail tube and a sealing device are mutually independent and do not interfere with each other, the position displacement does not influence the performance of the product. Moreover, the utility model also has the advantages of reasonable structure, reliable performance and convenient installation.
Description
Technical field
The utility model relates to oil-filled terminal, especially relates 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, the method of warding off lead 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.
The utility model content
For solving the deficiencies in the prior art, the purpose of this utility model 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 of terminal yet.
To achieve these goals, the utility model is to realize by following technical scheme:
A kind of flexible seal device that is used for oil-filled terminal, described oil-filled terminal comprises insulation shield, be socketed in the base plate on the described insulation shield, it is characterized in that: it also comprises a rubber seal pipe, described rubber seal tube section is the bell shape of pushing up, the small end of described bell shape rubber seal pipe is socketed on the described cable, and the big end of described bell shape rubber seal pipe is socketed on the described base plate.
Preferably, the big end of described bell shape rubber seal pipe and described base plate interference fit.
Preferably, the small end of described bell shape rubber seal pipe and described cable interference fit.
Preferably, described bell shape rubber seal Guan Daduan and small end are respectively arranged with at least one clip.
Preferably, described clip can be metal clip or nylon ply-yarn drill.
Preferably, described 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 described clip is that 90 degree are to 180 degree.
Preferably, dismountable shrinkage expansion bar that is provided with in the described rubber seal pipe.
The utility model 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 the mobile performance that does not influence product of position.In addition, the utility model also has rational in infrastructure, dependable performance, advantage easy for installation.
Description of drawings
Fig. 1 is the cutaway view of the oil-filled terminal of use the utility model flexible seal device;
Fig. 2 is the cutaway view of the sealed tube among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in Figure 1, use the oil-filled terminal of the utility model flexible seal device, comprise crimping rod 1, cable 2, be 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 by installation sleeve 9.
Utility model design of the present utility model mainly is to solve base plate 7 and cable 2, the especially sealing problem of insulation shield junction.
The utility model 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, 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, herein sealing is met the demands fully, but in order to make sealing safer, outside at sealed tube 6 and the interference fit two ends of insulation shield and annular installation sleeve 9 also is provided with two nylon ply-yarn drills 5 respectively, 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 made 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 at ordinary times maintenance.
The hermetically-sealed construction of this flexibility as can be seen, 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 utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in the protection range of the present utility model.
Claims (8)
1. flexible seal device that is used for oil-filled terminal, described oil-filled terminal comprises cable, be socketed in the base plate on the described cable, it is characterized in that: it also comprises a rubber seal pipe, described rubber seal tube section is the bell shape of pushing up, the small end of described bell shape rubber seal pipe is socketed on the described insulation shield, and the big end of described bell shape rubber seal pipe is socketed on the described base plate.
2. the flexible seal device that is used for oil-filled terminal according to claim 1 is characterized in that: the big end of described bell shape rubber seal pipe and described 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 described bell shape rubber seal pipe and described cable interference fit.
4. the flexible seal device that is used for oil-filled terminal according to claim 1 is characterized in that: described bell shape rubber seal Guan Daduan and small end are respectively arranged with at least one clip.
5. the flexible seal device that is used for oil-filled terminal according to claim 4 is characterized in that: described clip can be metal clip or nylon ply-yarn drill.
6. according to each described flexible seal device that is used for oil-filled terminal in the claim 1 to 5, it is characterized in that: described bell shape rubber seal Guan Daduan and small end are respectively arranged with two fractures and are the clip that angle is provided with.
7. the flexible seal device that is used for oil-filled terminal according to claim 6 is characterized in that: the fracture angle of described clip is that 90 degree are to 180 degree.
8. according to each described flexible seal device that is used for oil-filled terminal in the claim 1 to 5, it is characterized in that: dismountable shrinkage expansion bar that is provided with in the described rubber seal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201719137U CN201674200U (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil charge terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201719137U CN201674200U (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil charge terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201674200U true CN201674200U (en) | 2010-12-15 |
Family
ID=43331608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201719137U Expired - Lifetime CN201674200U (en) | 2010-04-26 | 2010-04-26 | Flexible sealing device for oil charge terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201674200U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814712A (en) * | 2010-04-26 | 2010-08-25 | 南京业基电气设备有限公司 | Flexible sealing device for oil-filled terminal |
| CN107689619A (en) * | 2017-09-21 | 2018-02-13 | 科耐特输变电科技股份有限公司 | A kind of oil-filled cable annex terminal sealing device |
-
2010
- 2010-04-26 CN CN2010201719137U patent/CN201674200U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814712A (en) * | 2010-04-26 | 2010-08-25 | 南京业基电气设备有限公司 | Flexible sealing device for oil-filled terminal |
| CN107689619A (en) * | 2017-09-21 | 2018-02-13 | 科耐特输变电科技股份有限公司 | A kind of oil-filled cable annex terminal sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101215 Effective date of abandoning: 20120530 |