CN104538924A - Split type oil filling outdoor terminal and sealing structure thereof - Google Patents
Split type oil filling outdoor terminal and sealing structure thereof Download PDFInfo
- Publication number
- CN104538924A CN104538924A CN201410849361.3A CN201410849361A CN104538924A CN 104538924 A CN104538924 A CN 104538924A CN 201410849361 A CN201410849361 A CN 201410849361A CN 104538924 A CN104538924 A CN 104538924A
- Authority
- CN
- China
- Prior art keywords
- seal pipe
- base plate
- lower seal
- split type
- type oil
- Prior art date
- 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.)
- Pending
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Classifications
-
- 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
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
-
- 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
- H02G15/00—Cable fittings
- H02G15/20—Cable fittings for cables filled with or surrounded by gas or oil
- H02G15/22—Cable terminations
- H02G15/23—Cable-end sealings
Landscapes
- Installation Of Indoor Wiring (AREA)
Abstract
The invention provides a split type oil filling outdoor terminal which comprises a cable and a bottom plate. A compression joint bar is installed at the upper end of the cable. The split type oil filling outdoor terminal further comprises a lower sealing pipe. The bottom plate is divided into a left section and a right section. The left section and the right section of the bottom plate are symmetrically installed on the outer surface of the lower sealing pipe. Double O-shaped sealing rings are arranged between the lower sealing pipe and the bottom plate. The lower sealing pipe is arranged on the cable in a sleeving mode. The invention further provides a sealing structure for the split type oil filling outdoor terminal. The sealing structure comprises the lower sealing pipe. The bottom plate is divided into the left section and the right section. The left section and the right section of the bottom plate are symmetrically installed on the outer surface of the lower sealing pipe. The double O-shaped sealing rings are arranged between the lower sealing pipe and the bottom plate. The lower sealing pipe is arranged on the cable in the sleeving mode. On the basis of overall flexible sealing of the bottom plate, the structure is improved, cast parts are avoided, plates and pipes are combined after being machined, sand holes and the die expense are avoided, cost is reduced, the two-layer sealing structure is adopted, and therefore sealing is safe and effective.
Description
Technical field
The invention belongs to electric cable accessories technical field, relate to the hermetically-sealed construction of a kind of split type oil-filled outdoor terminal and this split type oil-filled outdoor terminal.
Background technology
The sealing of oil-filled terminal, concerning very crucial electric cable accessories, if there is leakage of oil, can cause annex to puncture, cause large area blackout.Producer's structure of domestic and international electric cable accessories is different, but often has similar accident to occur, comprising many external companies.Some employing unsplit bed(-)plate flexible sealings; Some employings are warded off plumbous method and are sealed; Some stress cones and base plate connect together sealing; Have plenty of and adopt the sealing of wrapped band; Also have plenty of and adopt disc type sheet rubber press seal.All there is such or such deficiency, defect in all these methods.
Base plate overall flexibility seals, and must adopt casting technique, if inside exists the recessive defect such as sand holes, little slight crack, if have retaining thread by this defect, easily cause leakage of oil, simultaneously because cable specification span is larger, base plate mould also requires that at least three molds could cover completely; Ward off the material of lead-tight to the technical merit of workmen and site environment and use and have very high requirement, sealing difficulty is very large; Stress cone and base plate connect together sealing, and 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 exceed the scope of permission, stress cone can be caused to lose efficacy; The shortcoming holding band sealing is apparent, requires very high equally to the technical merit of workmen and site environment; Disc type sheet rubber tail pipe press seal, if on-the-spot centering is not enough, can cause disc type sheet rubber to tear.
Summary of the invention
For solving the deficiencies in the prior art, the object of the present invention is to provide one can good seal, the split type oil-filled outdoor terminal of above-mentioned deficiency can be avoided again, on the basis of base plate overall flexibility sealing, modified node method, and avoid adopting cast member, combine after using sheet material and tubular object extruding, avoid sand holes and die cost, and reduce cost.
Split type oil-filled outdoor terminal provided by the present invention, comprises cable and base plate, and the upper end of described cable is provided with crimping rod, it is characterized in that: also comprise lower seal pipe; Described base plate is divided into two sections, left and right, and left section of base plate and right section of bottom board symmetry are arranged on the outer surface of lower seal pipe, is provided with pair O RunddichtringO between described lower seal tank and base plate; Described lower seal pipe socket on the cables..Base plate of the present invention adopts composite type base plate, base plate and the combination of lower seal pipe are installed, owing to using this structure, avoid base plate and adopt monoblock cast part, although base plate overall structure is convenient, but inevitably there is defective workmanship in cast member, intensity aspect can not ensure, and easily produce the fatal defect such as casting sand hole, the present invention makes split-type structural into, base plate, lower seal pipe and latch nut combined structure, there is two O RunddichtringO to seal between lower seal pipe and base plate simultaneously, ensure airtight quality, base plate and lower seal pipe can select section bar, raw material do not have the defect of similar casting.This simple and practical, avoid casting flaw, sealing effectiveness is more safe and reliable.
Further, described split type oil-filled outdoor terminal also comprises end part seal pipe, and on the cables., its lower end is socketed in the upper end of described lower seal pipe in the upper end socket of described end part seal pipe.Utilize the integral sealing that end part seal pipe realizes between lower seal pipe and cable.
Further, O RunddichtringO is provided with between described cable and lower seal pipe.By the setting of O type annular seal space, make the sealing between cable and lower seal pipe tightr.
Further, locked by locking nut between described lower seal pipe and two sections, left and right base plate, connect with locking nut between base plate and lower seal pipe, both saved installing space, connect again reliable.
Further, described end part seal pipe is rubber sealing tube, and its cross section is bell-shaped, the two ends of this bell-shaped end part seal pipe respectively with described cable, lower seal pipe interference fit.
The present invention also provides a kind of hermetically-sealed construction of split type oil-filled outdoor terminal, described split type oil-filled outdoor terminal comprises cable and base plate, the upper end of described cable is provided with crimping rod, installation portion between described cable and base plate is provided with hermetically-sealed construction, it is characterized in that: described hermetically-sealed construction comprises lower seal pipe; Described base plate is divided into two sections, left and right, and left section of base plate and right section of bottom board symmetry are arranged on the outer surface of lower seal pipe, is provided with pair O RunddichtringO between described lower seal tank and base plate; Described lower seal pipe socket on the cables..Base plate of the present invention adopts composite type base plate, base plate and the combination of lower seal pipe are installed, owing to using this structure, avoid base plate and adopt monoblock cast part, although base plate overall structure is convenient, but inevitably there is defective workmanship in cast member, intensity aspect can not ensure, and easily produce the fatal defect such as casting sand hole, the present invention makes split-type structural into, base plate, lower seal pipe and latch nut combined structure, there is two O RunddichtringO to seal between lower seal pipe and base plate simultaneously, ensure airtight quality, base plate and lower seal pipe can select section bar, raw material do not have the defect of similar casting.This simple and practical, avoid casting flaw, sealing effectiveness is more safe and reliable.
Further, described hermetically-sealed construction also comprises end part seal pipe, and on the cables., its lower end is socketed in the upper end of described lower seal pipe in the upper end socket of described end part seal pipe.Utilize the integral sealing that end part seal pipe realizes between lower seal pipe and cable, safe and reliable.
Further, O RunddichtringO is provided with between described cable and lower seal pipe.By the setting of O type annular seal space, make the sealing between cable and lower seal pipe tightr.
Further, locked by locking nut between described lower seal pipe and two sections, left and right base plate, connect with locking nut between base plate and lower seal pipe, both saved installing space, connect again reliable.
Further, described end part seal pipe is rubber sealing tube, and its cross section is bell-shaped, the two ends of this bell-shaped end part seal pipe respectively with described cable, lower seal pipe interference fit.
The present invention avoids using casting technique, has following advantage simultaneously: (1) base plate and lower seal pipe adopt section bar and pipe fitting, and tightr than cast structure, intensity also can increase; (2) can, according to different cable specification, design respectively, and integral material be constant, according to cable specification adjustment pipe fitting specification, be convenient to raw material for storehouse; (3) lower seal pipe and base plate sealing adopt double-layer sealing structure, and sealingly secure is effective; (4) lower seal pipe is suitable for reading the rubber parts sealing specially designing processing, safe and reliable.The present invention, by actual test, can bear the pressure of 0.2MPa and not leak.The present invention has rational in infrastructure, dependable performance, advantage easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is I place partial enlarged drawing in Fig. 1.
In figure: 1-crimps rod; 2-cable; 3-end part seal pipe; 4-base plate; 5-lower seal pipe; 6-locking nut; The two O RunddichtringO of 7-.
Embodiment
As shown in Figure 1, 2, split type oil-filled outdoor terminal provided by the present invention, comprises cable 2, base plate 4, and the upper end of cable 2 is provided with crimping rod 1.Installation position between cable 2 and base plate 4 is provided with hermetically-sealed construction, and sealing structure comprises lower seal pipe 5, end part seal pipe 3.Base plate 4 is divided into two sections, left and right, left section of base plate and right section of bottom board symmetry are arranged on the outer surface of lower seal pipe 5, base plate and lower seal pipe compact siro spinning technology is made by locking nut 6 locking, be provided with two O RunddichtringO 7 between base plate 3 and lower seal pipe 5, ensure that between base plate and lower seal pipe, sealing is reliable.The upper end of end part seal pipe 3 is socketed on cable, and its lower end is socketed in the upper end of lower seal pipe 5.End part seal pipe 3 can use rubber sealing tube, and its cross section is bell-shaped, the two ends of this bell-shaped end part seal pipe respectively with cable 2, lower seal pipe 5 interference fit.For making the sealing between end part seal pipe, cable, lower seal pipe more tight, in the outside of the belled position of end part seal pipe and cable, lower seal pipe, clip is set respectively, utilizes clip to clamp, like this, there is again rigid pressure the outside of end part seal pipe 3, makes sealing more safe and reliable.
Above-described embodiment does not limit the present invention in any form, the technical scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection scope of the present invention.
Claims (10)
1. a split type oil-filled outdoor terminal, comprises cable and base plate, and the upper end of described cable is provided with crimping rod, it is characterized in that: also comprise lower seal pipe; Described base plate is divided into two sections, left and right, and left section of base plate and right section of bottom board symmetry are arranged on the outer surface of described lower seal pipe, is provided with pair O RunddichtringO between described lower seal tank and base plate; Described lower seal pipe socket on the cables..
2. split type oil-filled outdoor terminal as claimed in claim 1, is characterized in that: also comprise end part seal pipe, and on the cables., its lower end is socketed in the upper end of described lower seal pipe in the upper end socket of described end part seal pipe.
3. split type oil-filled outdoor terminal as claimed in claim 1 or 2, is characterized in that: be provided with O RunddichtringO between described cable and lower seal pipe.
4. split type oil-filled outdoor terminal as claimed in claim 1 or 2, is characterized in that: locked by locking nut between described lower seal pipe and two sections, left and right base plate.
5. split type oil-filled outdoor terminal as claimed in claim 1 or 2, is characterized in that: described end part seal pipe is rubber sealing tube, and its cross section is bell-shaped, the two ends of this bell-shaped end part seal pipe respectively with described cable, lower seal pipe interference fit.
6. the hermetically-sealed construction of a split type oil-filled outdoor terminal, described split type oil-filled outdoor terminal comprises cable and base plate, the upper end of described cable is provided with crimping rod, installation portion between described cable and base plate is provided with hermetically-sealed construction, it is characterized in that: described hermetically-sealed construction comprises lower seal pipe; Described base plate is divided into two sections, left and right, and left section of base plate and right section of bottom board symmetry are arranged on the outer surface of lower seal pipe, is provided with pair O RunddichtringO between described lower seal tank and base plate; Described lower seal pipe socket on the cables..
7. the hermetically-sealed construction of split type oil-filled outdoor terminal as claimed in claim 6, it is characterized in that: described hermetically-sealed construction also comprises end part seal pipe, on the cables., its lower end is socketed in the upper end of described lower seal pipe in the upper end socket of described end part seal pipe.
8. the hermetically-sealed construction of split type oil-filled outdoor terminal as claimed in claims 6 or 7, is characterized in that: be provided with O RunddichtringO between described cable and lower seal pipe.
9. the hermetically-sealed construction of split type oil-filled outdoor terminal as claimed in claims 6 or 7, be is characterized in that: locked by locking nut between described lower seal pipe and two sections, left and right base plate.
10. the hermetically-sealed construction of split type oil-filled outdoor terminal as claimed in claims 6 or 7, it is characterized in that: described end part seal pipe is rubber sealing tube, its cross section is bell-shaped, the two ends of this bell-shaped end part seal pipe respectively with described cable, lower seal pipe interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849361.3A CN104538924A (en) | 2014-12-31 | 2014-12-31 | Split type oil filling outdoor terminal and sealing structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410849361.3A CN104538924A (en) | 2014-12-31 | 2014-12-31 | Split type oil filling outdoor terminal and sealing structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104538924A true CN104538924A (en) | 2015-04-22 |
Family
ID=52854416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410849361.3A Pending CN104538924A (en) | 2014-12-31 | 2014-12-31 | Split type oil filling outdoor terminal and sealing structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104538924A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0731998B1 (en) * | 1993-12-01 | 1999-01-20 | N.V. Raychem S.A. | An end plate for forming a seal around an elongate object |
| 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 |
| 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 |
| CN102204047A (en) * | 2008-11-05 | 2011-09-28 | 格伦德福斯管理联合股份公司 | Immersion motor |
| CN202353166U (en) * | 2011-12-19 | 2012-07-25 | 长园电力技术有限公司 | Insulating sleeve of electric cable |
| CN204290256U (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | Split type oil-filled outdoor terminal and hermetically-sealed construction thereof |
-
2014
- 2014-12-31 CN CN201410849361.3A patent/CN104538924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0731998B1 (en) * | 1993-12-01 | 1999-01-20 | N.V. Raychem S.A. | An end plate for forming a seal around an elongate object |
| 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 |
| CN102204047A (en) * | 2008-11-05 | 2011-09-28 | 格伦德福斯管理联合股份公司 | Immersion motor |
| 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 |
| CN202353166U (en) * | 2011-12-19 | 2012-07-25 | 长园电力技术有限公司 | Insulating sleeve of electric cable |
| CN204290256U (en) * | 2014-12-31 | 2015-04-22 | 南京浩宁达电气有限公司 | Split type oil-filled outdoor terminal and hermetically-sealed construction thereof |
Non-Patent Citations (1)
| Title |
|---|
| 黄象珊: "《金属材料基础》", 31 August 2013 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |