CN203070995U - Three-position isolation switch - Google Patents
Three-position isolation switch Download PDFInfo
- Publication number
- CN203070995U CN203070995U CN 201320036387 CN201320036387U CN203070995U CN 203070995 U CN203070995 U CN 203070995U CN 201320036387 CN201320036387 CN 201320036387 CN 201320036387 U CN201320036387 U CN 201320036387U CN 203070995 U CN203070995 U CN 203070995U
- Authority
- CN
- China
- Prior art keywords
- conducting rod
- knife
- contact seat
- rotating shaft
- connecting lever
- 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
Abstract
A three-position isolation switch comprises a grounded contact seat, a conducting rod, a static contact seat and a movable contact knife. One end of the movable contact knife is hinged to the conducting rod. The grounded contact seat, the conducting rod and the static contact seat are fixed on the same reference surface through an insulated panel. The end of the movable contact knife, which is connected with the conducting rod, is connected with a rotating shaft connecting lever through an angular plate and an insulating pull bar in sequence. The other end of the rotating shaft connecting lever is hinged to a support plate. The three-position isolation switch is reasonable in design, omits a traditional insulating main shaft and a traditional framework, and fixes the static contact seat, the grounded contact seat and the conducting rod on the same reference surface in a straddle mounted mode, so that a property of aligning to a center between a moveable knife and a static knife can be ensured easily, structure is simple, assembly is easy and cost is low. In addition, electrical insulating properties of the structure mentioned above are excellent, so that space in front of and in back of a cabinet is utilized fully, the size of a rain main unit is reduced, and the intelligentization and miniaturization development of the rain main unit is facilitated.
Description
Technical field
The utility model relates to technical field of electricity, specifically a kind of tri-station isolating switch.
Background technology
At present, tri-station isolating switch uses insulation main shaft and (metal or insulation) framework mostly in the ring main unit.Employing is fixed on moving knife in the insulation main shaft, and operating mechanism drives the insulation main axis rotation, and moving knife is in company with the insulation main axis rotation.Static contact seat is separately fixed on the different datum levels of framework with the ground connection touch base.On the one hand, in order to ensure between moving knife and the quiet cutter to neutrality, the process and assemble required precision of parts is very high, invisible like this increase a lot of costs; On the other hand, the existence of this (metal or insulation) framework is subjected to the restriction of electrical insulation properties, has often limited the size of this switch, and switch overall dimension is bigger, and then has limited the size of the integral body of ring main unit.
The utility model content
Technical problem to be solved in the utility model provides a kind of tri-station isolating switch, solve traditional tri-station isolating switch and can not guarantee that static contact seat, ground connection touch base and conducting rod are fixed on same datum level, can not guarantee between moving knife and the quiet cutter to neutrality and the bigger problem of switch size.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: a kind of tri-station isolating switch, comprise ground connection touch base, conducting rod, static contact seat and movable touch knife, one end and the conducting rod of movable touch knife are hinged, described ground connection touch base, conducting rod and static contact seat are fixed on the same datum level by insulation board, the end that movable touch knife is connected with conducting rod is connected with the rotating shaft connecting lever with insulated tension pole by the dihedral plate successively, and the other end and the supporting bracket of rotating shaft connecting lever are hinged.
Ground connection touch base described in the utility model is fixedly installed on the support plate.
Rotating shaft connecting lever described in the utility model is connected with operating mechanism, and supporting bracket is arranged on the base plate.
The beneficial effects of the utility model are: reasonable in design, saved traditional insulation main shaft and framework, and use clamping plate type that static contact seat, ground connection touch base and conducting rod are fixed on same datum level, thereby be easy to guarantee between moving knife and the quiet cutter to neutrality, simple in structure, assembling is easy, and cost is lower.On the other hand, this structure electrical insulation properties is better, can utilize before the cabinet fully and the space behind the cabinet, reduces the size of ring main unit, is conducive to ring main unit to intelligent and miniaturization development.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Mark among the figure: 1, base plate, 2, supporting bracket, 3, the dihedral plate, 4, support plate, 5, the ground connection touch base, 6, conducting rod, 7, static contact seat, 8, movable touch knife, 9, insulation board, 10, insulated tension pole, 11, the rotating shaft connecting lever.
Embodiment
As shown in Figure 1, a kind of tri-station isolating switch, comprise ground connection touch base 5, conducting rod 6, static contact seat 7 and movable touch knife 8, one end and the conducting rod 6 of movable touch knife 8 are hinged, described ground connection touch base 5, conducting rod 6 and static contact seat 7 are fixed on the same datum level by insulation board 9, the end that movable touch knife 8 is connected with conducting rod 6 is connected with rotating shaft connecting lever 11 with insulated tension pole 10 by dihedral plate 3 successively, and the other end of rotating shaft connecting lever 11 and supporting bracket 2 are hinged.
Ground connection touch base 5 is fixedly installed on the support plate 4.
Rotating shaft connecting lever 11 is connected with operating mechanism, and supporting bracket 2 is arranged on the base plate 1.
Have fixing hole on the insulation board of special shape, grip static contact seat, ground connection touch base and conducting rod in twos, movable touch knife clamping conducting rod, static contact seat, ground connection touch base and movable touch knife are easy to guarantee to be positioned at same datum level like this, moving knife and quiet cutter neutrality is easy to assurance.
Isolating switch described in the utility model can be used as the isolating switch in the ring main unit breaker cabinet, cooperates with killer switch, carries out work or maintenance reliably.If add a cover arc-control device at this isolating switch, can be used in loading switch cabinet or fuse-on-load switch combined electrical apparatus cabinet.This isolating switch is simple in structure, and part is few, and assembling realizes that easily overall dimension is less, can take full advantage of the space in the looped network cabinet, reduces the overall dimension of ring main unit, makes cost obtain reducing very significantly.
As shown in Figure 1, rotating shaft connecting lever one end connects insulated tension pole, and the other end connects operating mechanism and drives connecting lever, and movable touch knife and dihedral plate are fixed together.State shown in the figure is that disconnection switch is in "on" position, drives the rotating shaft connecting lever counterclockwise, and movable touch knife is rotated counterclockwise motion, and isolating switch is by combined floodgate → separating brake → ground connection; When isolating switch is in ground state, drive the rotating shaft connecting lever clockwise, the movable touch knife clockwise rotation, isolating switch is by ground connection → separating brake → combined floodgate.
Claims (3)
1. tri-station isolating switch, comprise ground connection touch base (5), conducting rod (6), static contact seat (7) and movable touch knife (8), one end of movable touch knife (8) and conducting rod (6) are hinged, it is characterized in that: described ground connection touch base (5), conducting rod (6) and static contact seat (7) are fixed on the same datum level by insulation board (9), the end that movable touch knife (8) is connected with conducting rod (6) is connected with rotating shaft connecting lever (11) with insulated tension pole (10) by dihedral plate (3) successively, and the other end of rotating shaft connecting lever (11) and supporting bracket (2) are hinged.
2. a kind of tri-station isolating switch according to claim 1, it is characterized in that: described ground connection touch base (5) is fixedly installed on the support plate (4).
3. a kind of tri-station isolating switch according to claim 1, it is characterized in that: described rotating shaft connecting lever (11) is connected with operating mechanism, and supporting bracket (2) is arranged on the base plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036387 CN203070995U (en) | 2013-01-23 | 2013-01-23 | Three-position isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320036387 CN203070995U (en) | 2013-01-23 | 2013-01-23 | Three-position isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203070995U true CN203070995U (en) | 2013-07-17 |
Family
ID=48769759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320036387 Expired - Lifetime CN203070995U (en) | 2013-01-23 | 2013-01-23 | Three-position isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203070995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045953A (en) * | 2014-07-14 | 2017-08-15 | 亚洲电力设备(深圳)股份有限公司 | Transmission device provided with spacer spring operating mechanism |
-
2013
- 2013-01-23 CN CN 201320036387 patent/CN203070995U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107045953A (en) * | 2014-07-14 | 2017-08-15 | 亚洲电力设备(深圳)股份有限公司 | Transmission device provided with spacer spring operating mechanism |
| CN107045953B (en) * | 2014-07-14 | 2018-08-28 | 亚洲电力设备(深圳)股份有限公司 | Transmission device equipped with spacer spring operating mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |