CN204946797U - A kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure - Google Patents
A kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure Download PDFInfo
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- CN204946797U CN204946797U CN201520735288.7U CN201520735288U CN204946797U CN 204946797 U CN204946797 U CN 204946797U CN 201520735288 U CN201520735288 U CN 201520735288U CN 204946797 U CN204946797 U CN 204946797U
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- Prior art keywords
- fairlead
- gland
- conductive rod
- moved end
- moving conductive
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model discloses a kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure, the fairlead comprising fairlead gland, moved end lid, moving conductive rod and be made up of fairlead body and fairlead outward flange, the top surface edge of described fairlead outward flange is evenly provided with four grooves, fairlead endoporus is axially arranged with two to be prevented turning round key; The upper surface of fairlead gland is evenly provided with four flange pawls to varus, and moving conductive rod is provided with flatter; The anti-key of turning round of fairlead aligns with the flatter of moving conductive rod, fairlead is sleeved on moving conductive rod, make fairlead drop on moved end to cover, fairlead gland is buckled on fairlead, four flange dog clutch are combined in four grooves simultaneously, some points of spot welding equably on the outer that fairlead gland and moved end cover tightly subsides, make fairlead gland be securely fixed in moved end and cover.The utility model structure is simple, and production and processing cost is low, easy for installation.
Description
Technical field
The utility model relates to vacuum interrupter field, is specifically related to a kind of bellows anti-kink structure of vacuum interrupter.
Background technology
Bellows is indispensable element in vacuum interrupter, makes vacuum interrupter contact can be moved in outside mechanical force by its elastic performance, keeps again vacuum arc extinguish chamber housing to seal completely simultaneously.The connected mode of vacuum arc extinguishing chamber corrugated tube is that bellows one end is welded together by sealing ring and moving conductive rod, the other end and moved end are covered and are welded together, when moving conductive rod is subject to torsion rotation, bellows can be followed moving conductive rod and also will rotate, thus produces torsion.Because bellows wall thickness is very thin, only have 0.1-0.2mm, once the torsion be subject to exceedes its tenability limit, bellows will produce permanent deformation, cause bellows to ftracture, and vacuum interrupter leaks gas.So it is very important that bellows anti-turns round design.
If notification number is CN201985028U shown in Chinese utility model, this anti-kink structure is first welded on the cover plate of moved end by retainer ring by vacuum brazing, and the vacuum interrupter sealing and be vented is formed together with other correlated parts, then be fairlead be enclosed within moving conductive rod and drop in retainer ring, by roll extrusion mode, fairlead fixed.The anti-kink structure of this structure be first by retainer ring after special chemical purified treatment, to be covered by vacuum brazing and moved end with silver-base solder and link together.Also need in assembling process to adopt mould to be fixed by the relative position turning over pawl on the groove of moving conductive rod and retainer ring.Retainer ring not only needs to carry out strict chemical cleaning method process, and expensive silver-base solder also will be adopted to be fixed by soldering, and manufacturing cost is higher, also needs mould to locate at soldering fit on simultaneously, installs, dismantles inconvenience.
Utility model content
The purpose of this utility model is to overcome above shortcomings in prior art, a kind of structure simple vacuum arc extinguishing chamber corrugated tube anti-kink structure is provided, the fairlead gland of this anti-kink structure does not need through special chemical cleaning method process, do not need to use expensive silver-base solder to carry out vacuum brazing to fairlead gland and moved end lid, save assembling and positioning work step, production and processing cost is low, and fairlead is easy for installation simultaneously, can increase work efficiency.
To achieve these goals, the technical solution adopted in the utility model is as follows: a kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure, comprise fairlead, fairlead gland, moved end lid and moving conductive rod, fairlead is made up of fairlead body and the fairlead outward flange being positioned at fairlead body periphery, fairlead body and fairlead outward flange are structure as a whole, the axial length of fairlead body is longer than the axial length of fairlead outward flange, the top surface edge of fairlead outward flange is evenly provided with four grooves, fairlead body endoporus is axially arranged with two to be prevented turning round key; Fairlead gland is in " dish " shape, and the upper surface of fairlead gland is evenly provided with four flange pawls to varus, and the size of four flange pawls is corresponding with on fairlead four grooves; The outward flange of moving conductive rod is axially symmetrical in flatter, and this flatter and fairlead anti-to turn round key corresponding; Fairlead anti-turns round that key is corresponding with the flatter of moving conductive rod to be inserted on moving conductive rod, make fairlead drop on moved end to cover, fairlead gland is buckled on fairlead, simultaneously by the flange pawl of four on fairlead gland and the corresponding fastening of the groove of four on fairlead, the bottom surface of fairlead gland is close to moved end and covers, some points of spot welding equably on the contact position that fairlead gland and moved end cover.
The beneficial effects of the utility model are: in vacuum arc extinguishing chamber corrugated tube anti-kink structure of the present utility model, fairlead gland fixed guide cover, fairlead gland and moved end to be covered link together thus fixed guide cover by spot welding; Said structure fairlead gland does not need to carry out vacuum brazing, and can save the special chemical purified treatment of expensive silver-base solder and fairlead fixture, production and processing cost is low, reduces product cost; The cumbersome process must located with mould when said structure also eliminates soldering assembling, convenient installation, improve assembly work efficiency, the installation of fairlead is fixed more convenient, reliable, can ensure vacuum interrupter in use moving conductive rod can not produce radial rotating, thus ensure that bellows not by radial torsion, play the effect preventing bellows to be out of shape, to ftracture.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model, the accompanying drawing used in describing embodiment below and Reference numeral do simple introduction.
Fig. 1 is the cutaway view of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of fairlead gland in the utility model embodiment;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of fairlead in the utility model embodiment;
Fig. 6 is the vertical view of Fig. 5.
Description of reference numerals: 1-fairlead gland, 2-fairlead, 3-moved end lid, 4-moving conductive rod, 5-flatter, 6-prevent turning round key, 7-flange pawl, 8-groove, 9-bellows.
Embodiment
In order to understand the utility model further, below in conjunction with the accompanying drawing in the utility model embodiment, the scheme in the utility model embodiment is clearly and completely described.
See shown in Fig. 1 to Fig. 6, a kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure of the utility model embodiment, comprise fairlead 2, fairlead gland 1, moved end lid 3, moving conductive rod 4 and bellows 9, fairlead 2 is made up of fairlead body and the fairlead outward flange being positioned at fairlead body periphery, and fairlead body and fairlead outward flange are structure as a whole, the axial length of fairlead body is longer than the axial length of fairlead outward flange, the top surface edge of fairlead outward flange is evenly provided with four grooves 8, fairlead 2 endoporus is axially arranged with two to be prevented turning round key 6; Fairlead gland 1 is in " dish " shape, and the size that the upper surface of fairlead gland 1 is provided with equably to four flange pawls, 7, four flange pawls 7 of varus is corresponding with the groove 8 of four on fairlead 2; The outward flange of moving conductive rod 4 is axially symmetrical in flatter 5, and this flatter 5 and fairlead 2 anti-to turn round key 6 corresponding.
When assembling the vacuum arc extinguishing chamber corrugated tube anti-kink structure described in the utility model embodiment, first moving conductive rod 4, bellows 9, moved end lid 3 are linked together by vacuum brazing with other correlated parts of arc control device, form the vacuum interrupter that sealing is vented; Again the anti-key 6 of turning round of fairlead 2 is alignd with the flatter 5 of moving conductive rod 4, fairlead 2 is enclosed within moving conductive rod 4, fairlead 2 is made to drop on moved end lid 3, fairlead gland 1 is buckled on fairlead 2, simultaneously by the flange pawl 7 of four on fairlead gland 1 and the corresponding fastening of the groove of four on fairlead 28, now the bottom surface of fairlead gland 1 is close on moved end lid 3, even some points of spot welding on contact position cover 3 finally by spot welding machine in fairlead gland 1 and moved end, make fairlead gland 1 be securely fixed in moved end and cover on 3.
In the vacuum arc extinguishing chamber corrugated tube anti-kink structure of the utility model embodiment, fairlead gland 1 fixed guide cover 2, to cover 3 by spot welding and to link together thus fixed guide overlaps 2 by fairlead gland 1 and moved end; In the utility model embodiment, fairlead gland 1 does not need to carry out vacuum brazing, and can save the special chemical purified treatment of expensive silver-base solder and fairlead fixture, production and processing cost is low, reduces product cost; Simultaneously, the cumbersome process must located with mould when said structure also eliminates soldering assembling, convenient installation, improve assembly work efficiency, the installation of fairlead 2 is fixed more convenient, reliable, can ensure vacuum interrupter in use moving conductive rod 4 can not produce radial rotating, thus ensure that bellows 9 not by radial torsion, play the effect preventing bellows 9 to be out of shape, to ftracture.
It should be pointed out that and be described above embodiment of the present utility model.But; the technical staff of art technology should be appreciated that; the utility model is not restricted to the described embodiments; what describe in above-described embodiment just illustrates principle of the present utility model; under the prerequisite not departing from the utility model scope, the utility model also has multiple changes and improvements, and these changes and improvements all fall within the scope of claimed the utility model.
Claims (1)
1. a vacuum arc extinguishing chamber corrugated tube anti-kink structure, comprise fairlead, fairlead gland, moved end lid and moving conductive rod, it is characterized in that: described fairlead is made up of fairlead body and the fairlead outward flange being positioned at fairlead body periphery, described fairlead body and fairlead outward flange are structure as a whole, the axial length of described fairlead body is longer than the axial length of fairlead outward flange, the top surface edge of described fairlead outward flange is evenly provided with four grooves, fairlead body endoporus is axially arranged with two to be prevented turning round key; Described fairlead gland is in " dish " shape, and the upper surface of fairlead gland is evenly provided with four flange pawls to varus, and the size of described four flange pawls is corresponding with the groove of four on fairlead; The outward flange of described moving conductive rod is axially symmetrical in flatter, and flatter and fairlead anti-to turn round key corresponding; Described fairlead anti-turns round that key is corresponding with the flatter of moving conductive rod to be inserted on moving conductive rod, make fairlead drop on moved end to cover, fairlead gland is buckled on fairlead, simultaneously by the flange pawl of four on fairlead gland and the corresponding fastening of the groove of four on fairlead, the bottom surface of fairlead gland is close to moved end and covers, the contact position some points of spot welding equably that described fairlead gland and moved end are covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735288.7U CN204946797U (en) | 2015-09-22 | 2015-09-22 | A kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520735288.7U CN204946797U (en) | 2015-09-22 | 2015-09-22 | A kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204946797U true CN204946797U (en) | 2016-01-06 |
Family
ID=55014199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520735288.7U Expired - Fee Related CN204946797U (en) | 2015-09-22 | 2015-09-22 | A kind of vacuum arc extinguishing chamber corrugated tube anti-kink structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204946797U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473738A (en) * | 2019-07-05 | 2019-11-19 | 厦门宏发电力电器有限公司 | A kind of vacuum interrupter |
-
2015
- 2015-09-22 CN CN201520735288.7U patent/CN204946797U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110473738A (en) * | 2019-07-05 | 2019-11-19 | 厦门宏发电力电器有限公司 | A kind of vacuum interrupter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20160106 Termination date: 20210922 |