CN102254730B - Three-station isolation grounding switch - Google Patents
Three-station isolation grounding switch Download PDFInfo
- Publication number
- CN102254730B CN102254730B CN2011101944399A CN201110194439A CN102254730B CN 102254730 B CN102254730 B CN 102254730B CN 2011101944399 A CN2011101944399 A CN 2011101944399A CN 201110194439 A CN201110194439 A CN 201110194439A CN 102254730 B CN102254730 B CN 102254730B
- Authority
- CN
- China
- Prior art keywords
- moving contact
- tooth bar
- isolation grounding
- gear
- installation room
- 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.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
- H01H31/28—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact
- H01H31/283—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch with angularly-movable contact wherein the contact or contacts are rectilinearly movable with respect to the carrying member
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a three-station isolation grounding switch comprising a moving contact seat which is rotationally provided with an insulator rod, wherein the insulator rod has a power input end and a power output end which is provided with a gear; the moving contact seat is provided with a moving contact with movable guiding, the moving contact is fixedly provided with a tooth bar which extends along a moving direction and is engaged with the gear, and the moving contact has an installation chamber where the tooth bar is installed; the power output end of the insulator rod goes through the installation chamber, and the gear is engaged with the tooth bar in the installation chamber; the moving contact is provided with a guiding long hole used for matching the insulator rod guiding along a moving direction. According to the invention, the tooth bar and the gear are installed in the installation chamber, field distribution around the insulator rod is substantially improved, a housing internal diameter of a corresponding isolation grounding switch can be reduced, thus a problem of large volume of a present three-station isolation grounding switch which adopts a rack-and-pinion transmission mechanism is solved.
Description
Technical field
The present invention relates to electric equipment, especially a kind of three station isolation grounding switchs.
Background technology
On market, the drive mechanism of current visible three station isolation grounding switchs mainly contains two kinds, and a kind of is crank arm structure, by the output angle of connecting lever, completes the isolation grounding function of three stations.Another kind of is gear & rack structure, by gear driving rack, drives corresponding contact activity, thereby completes grounding function.The Chinese patent that is 201010590477.1 as application number discloses a kind of three station isolation grounding switchs, described three station isolation grounding switchs comprise housing, fixed contact, moving contact, movable contact block, supporting seat, wherein supporting seat is assemblied in the inner chamber of housing, movable contact block fixedly is assemblied on supporting seat, the guide channel that activity direction while having along described moving contact work in movable contact block extends, described moving contact guiding is assemblied in described guide channel and is equipped with tooth bar in external stability, on supporting seat, also be rotatably equipped with and the corresponding meshed gears of described tooth bar, the bearing of trend of the pivot center of described gear is vertical with the guide direction of described guide channel, during work, thereby gear is in transmission connection and drives described moving contact work by an insulating bar and corresponding drive unit, above-mentioned three station isolation grounding switchs have obtained sufficient application aborning, but some problems in use also occurred.Specifically, namely because described gear is arranged at the moving contact outside, the intersection point of described gear and insulating bar (being the center of gear) locates to have departed from the cephalomotor center of movable contact, this directly affects the Electric Field Distribution around insulating bar, switch is impacted by Insulation Test, in order to improve insulating bar Electric Field Distribution on every side, need to increase the internal diameter of described housing; In addition, due to the needs that tooth bar is installed, moving contact is generally solid construction, causes the moving contact mass penalty, and while causing switching manipulation, operating work increases.
Summary of the invention
The object of the present invention is to provide three station isolation grounding switchs, with the bulky problem of three station isolation grounding switchs that solve existing employing rack and pinion drive mechanism.
In order to address the above problem, three station isolation grounding switchs of the present invention are by the following technical solutions: three station isolation grounding switchs, comprise movable contact block, on described movable contact block, be rotatably equipped with corresponding insulating bar, described insulating bar has for the power intake be in transmission connection with drive unit and assembles cogged clutch end; In movable contact block, activity-oriented is equipped with moving contact, on described moving contact, is fixedly installed along the tooth bar that moves its activity direction extension and mesh with described gear, and it is characterized in that: in described moving contact, have installation room, described tooth bar is assemblied in described installation room; On the outer wall of described moving contact, have at least one long guiding hole, the clutch end of described insulating bar penetrates in installation room and with this long guiding hole and leads and coordinate on the activity direction of moving contact by corresponding long guiding hole; Described gear meshes with tooth bar in installation room.
On the outer wall of described moving contact, be relatively set with two described long guiding holes, the clutch end of described insulating bar is from penetrating described installation room and extending in another long guiding hole one of them long guiding hole.
Described moving contact has cylindrical segment between the two ends on its activity direction, on the center line that is centered close to described cylindrical segment of described gear.
Because three station isolation grounding switchs of the present invention arrange described installation room in described moving contact, thereby described tooth bar and gear all can be assemblied in described installation room, thereby improved widely the Electric Field Distribution around exhausted described edge bar, the internal diameter of the housing of corresponding isolation earthing switch can be reduced, thereby solved the bulky problem of three station isolation grounding switchs of existing employing rack and pinion drive mechanism; In addition, owing in described moving contact, having described installation room, moving contact as can be known is hollow-core construction, thereby has reduced the quality of moving contact, the operating work while having reduced switching manipulation.
The accompanying drawing explanation
Fig. 1 is the structural representation (band office is cutd open) of the embodiment 1 of three station isolation grounding switchs of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
The embodiment 1 of three station isolation grounding switchs of the present invention, as shown in Figure 1-2, has housing 1, in housing 1, fixedly be equipped with movable contact block 3 by a disc insulator 2, in movable contact block 3, have a guide channel and be equipped with moving contact 4 by its guide channel activity-oriented, place, guide channel two ends in movable contact block 3 in housing 1 is provided with fixed contact 5, in moving contact 4, have an installation room and in its installation room, be provided with tooth bar 6, tooth bar 6 is along the activity direction of moving contact 4, the guide direction that is the guide channel of movable contact block 3 is extended, on movable contact block 3, also be rotatably equipped with insulating bar 7, insulating bar 7 have for the power intake be in transmission connection with drive unit and only spinning be furnished with the clutch end of gear 8, the power intake of insulating bar 7 penetrates installation room and stretches into the offside of installation room from a side of moving contact 4, gear 8 is positioned at the installation room of moving contact 4 and meshes with tooth bar 6, on the outer wall of moving contact, have two long guiding holes 9 that are oppositely arranged, insulating bar 7 penetrates installation room and leads and coordinate on the activity direction of moving contact with this long guiding hole by one of them guiding is long, and the clutch end of insulating bar 7 extends to another long guiding hole after a long guiding hole penetrates installation room.Because the clutch end of insulating bar 7 is the structure that overhangs, so long guiding hole 9 can limit the projecting end shake when rotated of insulating bar 7; In addition, due to moving contact 4, be to need back and forth activity when working, long guiding hole 9 can also avoid insulating bar to hinder the activity of moving contact 4.Three station isolation grounding switchs of the present invention in the course of the work, at first by corresponding drive unit, driving insulating bar rotates, and then by gear driving rack, move, owing to fixedly being assemblied on moving contact, thereby so the motion of moving contact and rack synchronous realize with fixed contact deciliter; Because described tooth bar and gear all are assemblied in described installation room, thereby improved widely the Electric Field Distribution around described insulating bar, the internal diameter of the housing of corresponding isolation earthing switch can be reduced, thereby solved the bulky problem of three station isolation grounding switchs of existing employing rack and pinion drive mechanism; In addition, owing in described moving contact, having described installation room, moving contact as can be known is hollow-core construction, thereby has reduced the quality of moving contact, the operating work while having reduced switching manipulation.
In above-described embodiment, can also only on a side of moving contact, described long guiding hole be set; Three the above long guiding holes can also be set on the outer wall of described moving contact, and each long guiding hole needn't be oppositely arranged.
Claims (3)
1. three station isolation grounding switchs, comprise movable contact block, on described movable contact block, is rotatably equipped with corresponding insulating bar, and described insulating bar has for the power intake be in transmission connection with drive unit and assembles cogged clutch end; Activity-oriented is equipped with moving contact in movable contact block, on described moving contact, be fixedly installed along its activity direction extend and with the tooth bar of described gear engagement, it is characterized in that: in described moving contact, have installation room, described tooth bar is assemblied in described installation room; On the outer wall of described moving contact, have at least one long guiding hole, the clutch end of described insulating bar penetrates in installation room and with this long guiding hole and leads and coordinate on the activity direction of moving contact by corresponding long guiding hole; Described gear meshes with tooth bar in installation room.
2. three station isolation grounding switchs according to claim 1, it is characterized in that: on the outer wall of described moving contact, be relatively set with two described long guiding holes, the clutch end of described insulating bar is from penetrating described installation room and extending in another long guiding hole one of them long guiding hole.
3. three station isolation grounding switchs according to claim 1 and 2, it is characterized in that: described moving contact has cylindrical segment between the two ends on its activity direction, on the center line that is centered close to described cylindrical segment of described gear.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101944399A CN102254730B (en) | 2011-07-12 | 2011-07-12 | Three-station isolation grounding switch |
| PCT/CN2012/000900 WO2013007101A1 (en) | 2011-07-12 | 2012-06-30 | Three-station isolation grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101944399A CN102254730B (en) | 2011-07-12 | 2011-07-12 | Three-station isolation grounding switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102254730A CN102254730A (en) | 2011-11-23 |
| CN102254730B true CN102254730B (en) | 2013-11-27 |
Family
ID=44981917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101944399A Active CN102254730B (en) | 2011-07-12 | 2011-07-12 | Three-station isolation grounding switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102254730B (en) |
| WO (1) | WO2013007101A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102254730B (en) * | 2011-07-12 | 2013-11-27 | 平高集团有限公司 | Three-station isolation grounding switch |
| CN103236370B (en) * | 2013-04-19 | 2015-03-04 | 镇江维依埃电工研究所有限公司 | Four-connecting-rod and three-workstation isolating switch |
| CN111192768A (en) * | 2019-12-17 | 2020-05-22 | 河南平高电气股份有限公司 | Moving contact component and switch equipment using same |
| CN113035627B (en) * | 2021-03-29 | 2023-12-29 | 山东泰开电力开关有限公司 | Single-body split-box type linear three-position switch structure and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665135A (en) * | 1970-02-27 | 1972-05-23 | Coq Kanaalweg Nv | Metal clad isolator switches for high tension and double interruption |
| CN2689542Y (en) * | 2003-07-10 | 2005-03-30 | 河南平高电气股份有限公司 | Separating and grounding valve with gas insulation |
| CN201369277Y (en) * | 2009-01-09 | 2009-12-23 | 河南平高电气股份有限公司 | Disconnecting-grounding switch |
| CN202189714U (en) * | 2011-07-12 | 2012-04-11 | 平高集团有限公司 | Three-station isolation grounding switch |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06197423A (en) * | 1992-12-25 | 1994-07-15 | Toshiba Corp | Gas-insulated switchgear |
| EP1879207B1 (en) * | 2006-07-12 | 2017-04-19 | ABB Schweiz AG | Rack and pinion gear for a switch |
| CN102254730B (en) * | 2011-07-12 | 2013-11-27 | 平高集团有限公司 | Three-station isolation grounding switch |
-
2011
- 2011-07-12 CN CN2011101944399A patent/CN102254730B/en active Active
-
2012
- 2012-06-30 WO PCT/CN2012/000900 patent/WO2013007101A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3665135A (en) * | 1970-02-27 | 1972-05-23 | Coq Kanaalweg Nv | Metal clad isolator switches for high tension and double interruption |
| CN2689542Y (en) * | 2003-07-10 | 2005-03-30 | 河南平高电气股份有限公司 | Separating and grounding valve with gas insulation |
| CN201369277Y (en) * | 2009-01-09 | 2009-12-23 | 河南平高电气股份有限公司 | Disconnecting-grounding switch |
| CN202189714U (en) * | 2011-07-12 | 2012-04-11 | 平高集团有限公司 | Three-station isolation grounding switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102254730A (en) | 2011-11-23 |
| WO2013007101A1 (en) | 2013-01-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhen Inventor after: Li Yonglin Inventor after: Lin Lin Inventor after: He Jingjing Inventor after: Liu Xinwei Inventor after: Hao Liucheng Inventor after: Liu Chang Inventor after: Xu Hongchun Inventor before: Wang Zhen Inventor before: Li Yonglin Inventor before: Lin Lin Inventor before: He Jingjing |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: WANG ZHEN LI YONGLIN LIN LIN HE JINGJING TO: WANG ZHEN LI YONGLIN LIN LIN HE JINGJING LIU XINWEI HAO LIUCHENG LIU CHANG XU HONGCHUN |