CN203746738U - Vacuum arc-extinguishing chamber solid-sealed polar pole - Google Patents
Vacuum arc-extinguishing chamber solid-sealed polar pole Download PDFInfo
- Publication number
- CN203746738U CN203746738U CN201320763320.3U CN201320763320U CN203746738U CN 203746738 U CN203746738 U CN 203746738U CN 201320763320 U CN201320763320 U CN 201320763320U CN 203746738 U CN203746738 U CN 203746738U
- Authority
- CN
- China
- Prior art keywords
- rear end
- extinguishing chamber
- insulator
- face
- pole
- 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.)
- Expired - Lifetime
Links
- 239000012212 insulator Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims description 10
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 14
- 230000005494 condensation Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Abstract
The utility model relates to a vacuum arc-extinguishing chamber solid-sealed polar pole. The vacuum arc-extinguishing chamber solid-sealed polar pole is used for vacuum switching equipment. The vacuum arc-extinguishing chamber solid-sealed polar pole includes an insulation cylinder. A vacuum arc-extinguishing chamber is sealed in the front part of a front section of the insulation cylinder. The front part of the arc-extinguishing chamber is provided with a static contact while the rear part of the arc-extinguishing chamber is provided with a movable contact. An insulation pull rod connected with the movable contact of the arc-extinguishing chamber is arranged in an inner cavity of the rear section of the insulation cylinder. The rear end of the insulation pull rod protrudes from an opening in the rear end of the insulation cylinder. The insulation pull rod includes an insulator disposed in the middle section and connection embedding pieces arranged on the two ends of the insulator. An annular flexible sealing gasket is connected between the insulation pull rod and the insulation cylinder. An outer ring and an inner ring of the flexible sealing gasket are connected to the rear end face of the insulation cylinder and the rear end face of the insulator in a pressed and sealed manner through a fixing flange and a gasket respectively. According to the utility model, a rear end opening of the insulation cylinder of the solid-sealed polar pole is sealed with the flexible sealing gasket, so that steam is prevented from entering the inner cavity of the polar pole and water condensation is prevented effectively. At the same time, the solid-sealed polar pole is simple in structure and convenient to install.
Description
Technical field
The utility model relates to power transmission and distribution equipment unit, specifically a kind of solid sealed pole of vacuum arc-extinguishing chamber for vacuum switchgear.
Background technology
In distribution switchgear, increasing vacuum interrupter adopts sealing technology (also referred to as pole), not only strengthen vacuum extinction outdoor insulation and be convenient to vacuum interrupter by which and fix, Insulation Problems that can also fine solution vacuum switchgear, thereby realize whole vacuum switchgear Miniaturization Design, but, also there is certain technological deficiency in pole, this is because movable end of vacuum arc extinguishing chamber is owing to connecting insulated tension pole, the one end that has determined pole is that design is hollow, this structural design, make its inner air be difficult for flowing, in the time running into the sharply variation of humid air and temperature, easily produce condensation, and the too much condensation of pole cylinder inwall, very easily cause that inner insulation declines, even cause puncturing along face is creepage, thereby cause ground connection or phase fault.
Summary of the invention
Technical problem to be solved in the utility model is, provides one can prevent condensation in pole, and manufacture and solid sealed pole of vacuum arc-extinguishing chamber easy for installation.
Solid sealed pole of vacuum arc-extinguishing chamber of the present utility model includes an insulating cylinder body, and before insulating cylinder body, intersegmental part is sealed with vacuum interrupter, and vacuum interrupter front portion arranges fixed contact, rear portion arranges moving contact; In insulating cylinder body back segment inner chamber, be provided with the insulated tension pole being connected with vacuum interrupter moving contact, stretch out from insulating cylinder body open rearward end insulated tension pole rear end; Described insulated tension pole comprises the insulator that is positioned at stage casing and the connection inserting part that is positioned at insulator two ends; Between described insulated tension pole and insulating cylinder body, be connected with the flexible gasket of ring-type; The outer ring of flexible gasket and inner ring are connected on insulating cylinder body rear end face and insulator rear end face by mounting flange and pad press seal respectively.
The connection inserting part of described insulated tension pole front end comprises a housing that is embedded in the cup-shaped in insulator, housing center is inserted with an expansion link, expansion link middle part arranges shoulder, shoulder front end face is spacing by being threaded connection pressure ring on housing, between shoulder rear end face and housing bottom, be pressed with spring, expansion link can be stretched under the effect of spring force and forefront pressure; Expansion link front end has the screw connection structure that can be connected with vacuum interrupter moving contact.
Described flexible gasket is bowl-shape, and the outer ring of flexible gasket and inner ring are respectively arranged with the bossing of ring-type, and by bossing, sealing contacts flexible gasket with insulator rear end face with insulating cylinder body rear end face.Described flexible gasket 4 is elastomeric material.On described insulator rear end face, be also provided with the annular groove coordinating with described bossing.
The utility model carries out hermetically enclosed to the open rearward end of pole insulating cylinder body by flexible gasket, avoided aqueous vapor to enter pole inner chamber, has effectively prevented condensation generation, and it is simple in structure, easy for installation simultaneously; Its insulated tension pole front end connection inserting part adopts the structure of built-in spring and expansion link, and the contact precompression while both having ensured to close a floodgate, has again higher insulating protection ability.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present utility model;
Fig. 2 is the insulated tension pole structural representation of the utility model embodiment;
Fig. 3 is the flexible gasket structural representation of the utility model embodiment.
Embodiment
As shown in Figure 1, this solid sealed pole of vacuum arc-extinguishing chamber includes an insulating cylinder body 1, before insulating cylinder body, intersegmental part is sealed with vacuum interrupter 2, vacuum interrupter front portion arranges fixed contact 21, rear portion arranges in moving contact 22 insulating cylinder body 1 back segment inner chambers and is provided with the insulated tension pole 3 being connected with vacuum interrupter moving contact, and stretch out from insulating cylinder body 1 open rearward end insulated tension pole 3 rear ends; Described insulated tension pole 3 comprises the insulator 31 that is positioned at stage casing and the connection inserting part that is positioned at insulator 31 two ends; Between described insulated tension pole 3 and insulating cylinder body 1, be connected with the flexible gasket 4 of ring-type; The outer ring of flexible gasket and inner ring are connected on insulating cylinder body 1 rear end face and insulator 31 rear end faces by mounting flange 5 and pad 6 press seals respectively.
As shown in Figure 2, the connection inserting part of described insulated tension pole 3 front ends comprises a housing 32 that is embedded in the cup-shaped in insulator 31, housing 32 centers are inserted with an expansion link 33, expansion link middle part arranges shoulder 331, shoulder front end face is spacing by being threaded connection pressure ring 34 on housing, between shoulder rear end face and housing bottom, be pressed with spring 35, expansion link 33 can be stretched under the effect of spring force and forefront pressure; Expansion link 33 front ends have the screw connection structure that can be connected with vacuum interrupter moving contact 22.
As shown in Figure 3, described flexible gasket 4 is bowl-shape, and the outer ring of flexible gasket and inner ring are respectively arranged with the bossing 41 of ring-type, and by bossing 41, sealing contacts flexible gasket with insulator rear end face with insulating cylinder body rear end face.Described flexible gasket 4 is elastomeric material.As Fig. 2, on described insulator 31 rear end faces, be also provided with the annular groove 311 coordinating with the bossing 41 of inner ring.
Claims (5)
1. a solid sealed pole of vacuum arc-extinguishing chamber, include an insulating cylinder body (1), before insulating cylinder body, intersegmental part is sealed with vacuum interrupter (2), vacuum interrupter front portion arranges fixed contact (21), rear portion arranges in moving contact (22) insulating cylinder body (1) back segment inner chamber and is provided with the insulated tension pole (3) being connected with vacuum interrupter moving contact, and stretch out from insulating cylinder body (1) open rearward end insulated tension pole (3) rear end; Described insulated tension pole (3) comprises the insulator (31) that is positioned at stage casing and the connection inserting part that is positioned at insulator (31) two ends; It is characterized in that: the sealing gasket (4) that is connected with ring-type between described insulated tension pole (3) and insulating cylinder body (1); The outer ring of sealing gasket and inner ring are connected on insulating cylinder body (1) rear end face and insulator (31) rear end face by mounting flange (5) and pad (6) press seal respectively.
2. solid sealed pole of vacuum arc-extinguishing chamber according to claim 1, it is characterized in that: the connection inserting part of described insulated tension pole (3) front end comprises a housing (32) that is embedded in the cup-shaped in insulator (31), housing (32) center is inserted with an expansion link (33), expansion link middle part arranges shoulder (331), shoulder front end face is spacing by being threaded connection pressure ring (34) on housing, is pressed with spring (35) between shoulder rear end face and housing bottom; Expansion link (33) front end has the screw connection structure that can be connected with vacuum interrupter moving contact (22).
3. solid sealed pole of vacuum arc-extinguishing chamber according to claim 1 and 2, it is characterized in that: described sealing gasket (4) is bowl-shape, the outer ring of sealing gasket and inner ring are respectively arranged with the bossing (41) of ring-type, and by bossing (41), sealing contacts sealing gasket with insulator rear end face with insulating cylinder body rear end face.
4. solid sealed pole of vacuum arc-extinguishing chamber according to claim 3, is characterized in that: described flexible gasket (4) is elastomeric material.
5. solid sealed pole of vacuum arc-extinguishing chamber according to claim 3, is characterized in that: on described insulator (31) rear end face, be also provided with the annular groove (311) coordinating with described bossing (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763320.3U CN203746738U (en) | 2013-11-28 | 2013-11-28 | Vacuum arc-extinguishing chamber solid-sealed polar pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320763320.3U CN203746738U (en) | 2013-11-28 | 2013-11-28 | Vacuum arc-extinguishing chamber solid-sealed polar pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203746738U true CN203746738U (en) | 2014-07-30 |
Family
ID=51346505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320763320.3U Expired - Lifetime CN203746738U (en) | 2013-11-28 | 2013-11-28 | Vacuum arc-extinguishing chamber solid-sealed polar pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203746738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617923A (en) * | 2013-11-28 | 2014-03-05 | 北京交通大学长三角研究院 | Anti-condensation vacuum arc-extinguishing chamber solid-sealed polar pole |
| CN104616920A (en) * | 2015-02-09 | 2015-05-13 | 河北润志电气设备有限公司 | Method for improving outer insulating performance of insulating tension rod |
-
2013
- 2013-11-28 CN CN201320763320.3U patent/CN203746738U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617923A (en) * | 2013-11-28 | 2014-03-05 | 北京交通大学长三角研究院 | Anti-condensation vacuum arc-extinguishing chamber solid-sealed polar pole |
| CN104616920A (en) * | 2015-02-09 | 2015-05-13 | 河北润志电气设备有限公司 | Method for improving outer insulating performance of insulating tension rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |