CN2424524Y - On-off device of isolation load switch - Google Patents
On-off device of isolation load switch Download PDFInfo
- Publication number
- CN2424524Y CN2424524Y CN 00212152 CN00212152U CN2424524Y CN 2424524 Y CN2424524 Y CN 2424524Y CN 00212152 CN00212152 CN 00212152 CN 00212152 U CN00212152 U CN 00212152U CN 2424524 Y CN2424524 Y CN 2424524Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- rocking arm
- big rocking
- switch
- utility
- 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 - Fee Related
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to an on-off device of an isolation load switch, which comprises a vacuum arc-extinguishing chamber, a support plate, a mechanism box and a conducting rod. The utility model is characterized in that the conducting rod and a big rocking arm are fixedly connected with a main shaft in the mechanism box; a small coupling plate is rotationally coupled with the main shaft; the small coupling plate is hinged with the other end of a push rod; a middle shaft is in sliding assembly in an arc-shaped slide hole of the big rocking arm; a return spring is assembled above the big rocking arm; a shaft of the vacuum arc-extinguishing chamber is movably coupled with one end of a crank arm; the crank arm is rotationally coupled with the mechanism box; the other end of the crank arm is hinged with the push rod; a breaking spring is assembled between a drive shaft and the mechanism box. The utility model has the advantages that the utility model is matched and assembled with a isolation switch, so that the operating physical force can be reduced, the incision of the switch is obvious, the misoperation is avoided, and safety and reliability are good.
Description
The utility model belongs to a kind of matching component of power switch, particularly a kind of breaking device of isolating on-load switch.
In the power distribution network of electric power system, adopt pvs (pole-mounted vacuum switch) realize continuing being electrically connected of circuit and each branched line and cut-offfing at present.Present most of vacuum switch operating physical force is bigger, and the significantly visible fracture of failing causes the not running status of this switch easy to identify of operations staff, very easily causes operating personnel's misoperation, for the safe operation of electrical network brings very big steady trouble.For this reason, the applicant has developed high pressure vacuum and has isolated the on-load switch device, this device is by the plug-in strip effect control breaking device of isolating switch, breaking device cut-offs vacuum interrupter and is closed, thereby realize isolating the operation of on-load switch device arc extinguishing, reach the good purpose of fail safe, but do not have and the supporting breaking device of isolating switch in the market.
The purpose of this utility model provides a kind of breaking device of isolating on-load switch, and is obvious with the isolating switch fracture, avoids misoperation, and security reliability is good.
The purpose of this utility model is achieved in that it comprises vacuum interrupter, support plate, and mechanism case and conducting rod, its technical characterictic is: rotation connects main shaft on mechanism case, connects firmly conducting rod and big rocking arm on the main shaft, also rotates the little yoke plate of connection on the main shaft; Have the arcuation slide opening on the rocking arm greatly, little yoke plate is by hinged push rod one end of jack shaft, and jack shaft one end slidingly assemble is in the arcuation slide opening of big rocking arm, and back-moving spring is assembled in big rocking arm top; Vacuum interrupter axle upper end is by movable connecting lever one end that connects of switch shaft, and connecting lever is rotatably connected on the mechanism case by the connecting lever axle, and the other end of connecting lever is by the hinged push rod other end of power transmission shaft; Assemble sluice separating spring between power transmission shaft and the mechanism case.
The utility model has the advantages that: with the supporting assembling of isolating switch, can reduce operating physical force, the switch fracture is obvious, avoids misoperation, safety, good reliability.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the vertical view that the utility model removes loam cake.
Fig. 3 is the supporting scheme of installation of the utility model and isolating switch.
See Fig. 1,2, concrete structure is as follows: the upper group of mechanism case 9 is loaded onto and is covered 10, has the pilot hole 11 of vacuum interrupter axle on the loam cake 10, and blanking cover 12 is equipped with on the top in hole.Rotate connection main shaft 5 in a side of mechanism case 9, main shaft 5 is positioned at the outer affixed conducting rod 3 of part of casing, conducting rod 3 connects vacuum interrupter axle 15 by lead 21, box house at main shaft 5 divides affixed big rocking arm 6 and rotates the little yoke plate 22 of connection, assembling back-moving spring 8 between big rocking arm 6 tops and the mechanism case 9; Have arc slide opening 7 on the big rocking arm 6.Push rod 20 1 ends are by jack shaft 4 hinged little yoke plates 22, and the other end is by power transmission shaft 18 hinged connecting levers 16 lower ends; One end slidingly assemble of jack shaft 4 is in the slide opening 7 of big rocking arm.Assembling sluice separating spring 19 between power transmission shaft 18 and the mechanism case 9.Connecting lever 16 is rotatably connected on the mechanism case 9 by connecting lever axle 13.Switch shaft 14 hinged vacuum interrupter axles 15 tops are passed through in connecting lever 16 upper ends, suit touch spring 17 on vacuum interrupter axle 15, and the upper end of vacuum interrupter axle 15 is positioned at the pilot hole 11 of loam cake 10.The bottom of mechanism case 9 connects firmly vacuum interrupter 2, and the lower end of vacuum interrupter 2 connects firmly support plate 1.Operation principle is as follows: see Fig. 3, during installation, be fixed in the utility model on the fixed contact 24 of isolating switch 25 by support plate 1; When the plug-in strip 23 of isolating switch breaks away from static contact 24 by operating mechanism 26, its end effect conducting rod 3, conducting rod 3 drives main shaft 5 rotations, big rocking arm 6 turns over certain angle thereupon, because slide opening 7 upper ends act on jack shaft 4, make it to bottom offset, when displacement surpasses the dead point, sluice separating spring 19 acts on power transmission shaft 18, connecting lever 16 is rotated, and connecting lever 16 drives upwards action of vacuum interrupter axle 15 by switch shaft 14, and vacuum interrupter 2 closes state by the pass and transfers the disjunction state to, realize the disjunction of load current, finally realize vacuum load switch and the obvious disjunction of isolating switch of interlock with it at vacuum interrupter.After plug-in strip 23 is rotated further certain angle, leave conducting rod 3, back-moving spring 8 resets big rocking arm 6, and main shaft 5 rotates and recovers reset condition, and other part also recovers the home position accordingly.
Claims (1)
1, a kind of breaking device of isolating on-load switch, it comprises vacuum interrupter, support plate, mechanism case and conducting rod, it is characterized in that: rotation connects main shaft on mechanism case, connects firmly conducting rod and big rocking arm on the main shaft, also rotates the little yoke plate of connection on the main shaft; Have the arcuation slide opening on the big rocking arm, little yoke plate is by hinged push rod one end of jack shaft, jack shaft one end slidingly assemble is in the arcuation slide opening of big rocking arm, big rocking arm top assembling back-moving spring, vacuum interrupter axle upper end is by movable connecting lever one end that connects of switch shaft, connecting lever is rotatably connected on the mechanism case by the connecting lever axle, and the other end of connecting lever is assembled sluice separating spring by the hinged push rod other end of power transmission shaft between power transmission shaft and the mechanism case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212152 CN2424524Y (en) | 2000-06-08 | 2000-06-08 | On-off device of isolation load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00212152 CN2424524Y (en) | 2000-06-08 | 2000-06-08 | On-off device of isolation load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2424524Y true CN2424524Y (en) | 2001-03-21 |
Family
ID=33578719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00212152 Expired - Fee Related CN2424524Y (en) | 2000-06-08 | 2000-06-08 | On-off device of isolation load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2424524Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
-
2000
- 2000-06-08 CN CN 00212152 patent/CN2424524Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103199453A (en) * | 2012-04-17 | 2013-07-10 | 苏州朗格电气有限公司 | Nitrogen insulation ring main unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |