CN101937802A - Resetting device for switching on/off mechanism in dropping type fuse - Google Patents
Resetting device for switching on/off mechanism in dropping type fuse Download PDFInfo
- Publication number
- CN101937802A CN101937802A CN2009100541162A CN200910054116A CN101937802A CN 101937802 A CN101937802 A CN 101937802A CN 2009100541162 A CN2009100541162 A CN 2009100541162A CN 200910054116 A CN200910054116 A CN 200910054116A CN 101937802 A CN101937802 A CN 101937802A
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- slide block
- pin
- close
- hole
- resetting means
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Abstract
The invention discloses a resetting device for a switching on/off mechanism in a dropping type fuse. The resetting device comprises a slide block, a guide pin, a slide block rack, a bushing and an offsetting spring, wherein the slide block has an L shape; a tripping pin hole is formed in the center of the bottom wall part of the slide block and four rivet holes are formed by using the tripping pin hole as a symmetric center; the slide block is connected with a tripping device through rivets; a guide pin hole is formed on the side wall part of the slide block; one end of the guide pin is fixedly inserted into the guide pin hole of the slide block from the left outside of the side wall part of the slide block; the cross section of the slide block rack is U-shaped, a tripping pin hole is formed in the center of the surface of the bottom wall part of the slide block rack, and four rivet holes are formed by using the tripping pin hole as a symmetric center; one end of the bushing is sealed, while the other end is open, and a radially outward turned edge is arranged on a peripheral surface of the open end; and the offsetting spring is a cylindrical spring, is arranged in an inner cavity of the bushing and is sleeved on the guide pin.
Description
Technical field
The present invention relates to a kind of resetting means that is used for the close/open machine of fuse switch.
Background technology
Fuse switch is the most frequently used a kind of protective switch of the short circuit of 10kV distribution line branch line and distribution transformer; it have economy, easy to operate, adapt to characteristics such as outdoor environment is strong, be widely used in 10kV distribution line and distribution transformer primary side as protection with carry out the usefulness that equipment is thrown, cut operation.Its operation principle is: fuse is penetrated in the fusion tube, tighten at two ends, and make fuse be positioned at fusion tube upper middle side, last moving contact is upturned perpendicular to cartridge fuse owing to the tension force of fuse tension, to go up moving contact with insulated tension pole and push in the upper static contact, and become closure state ("on" position) and keep this state.When protected circuit breaks down, when fault current makes fuse failure, form electric arc; expulsion tube decomposites a large amount of gases under the high arc temperature effect, the pipe internal pressure is sharply increased, and gas is ejection at a high speed outwards; electric arc is formed strong vertical arc blow-out, electric arc is elongated rapidly and extinguish.Meanwhile, because fuse failure, the pulling force of fuse disappears, and retaining mechanism is discharged, and cartridge fuse falls around the lower shaft upset under the effect of the elastic force of upper static contact and deadweight thereof, forms tangible break distance.Circuit is disconnected, excision faulty section circuit or faulty equipment.
Fuse switch comprises fusing carrier, upper and lower touch base, insulating part, upper and lower binding post and upper and lower inserts.The upper contact head seat of the fuse switch of prior art generally can only carry out up and down, needs bigger operating physical force when the fusing carrier on/off switch.Along with fuse cut-offs constantly increasing of capacity, requiring has more contact pressure between contact, when this certainly will cause divide-shut brake bigger operating physical force will be arranged, and therefore demands urgently improving.
Summary of the invention
The present invention is in order to reach the labour-saving purpose, motion mode by changing the upper contact head seat and increase measure such as close/open machine, and provide a kind of resetting means that is used for the close/open machine of fuse switch, carry out after sub-switching operation or fuse cut-off at fusing carrier, need the upper contact head seat to be returned to initial position, so that fusing carrier carries out closing operation next time, resetting means is the part in the newly-increased close/open machine, and its effect is to guarantee that the upper contact head seat is returned to the accuracy of initial position.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of resetting means that is used for the close/open machine of fuse switch, described fuse switch comprises fusing carrier, leverage, on, following touch base, close/open machine, insulating part, on, on lower connecting terminal reaches, following inserts, described close/open machine is connected on the inserts, described close/open machine comprises trip gear, locker, resetting means and guide frame, described resetting means is connected with trip gear and is connected with last inserts by guide frame, wherein, described resetting means comprises a slide block, one pilot pin, one slider frame, one lining and a back-moving spring
Described slide block is the L font, and the central authorities of its bottom wall portion offer a dropout pin-and-hole and are that symmetrical centre is offered four rivet holes with this dropout pin-and-hole, offer a pin-guide hole on its side wall portion;
The diameter of described pilot pin and the diameter of bore of back-moving spring coupling, its head fixedly is plugged on the pin-guide hole of described slide block from the left-external side of the side wall portion of described slide block;
The cross section of described slider frame is the U font, and its bottom wall portion surface central authorities offer a dropout pin-and-hole, and is that symmetrical centre is provided with four rivet holes with described dropout pin-and-hole, so that it is connected with described slide block by rivet;
Described lining is for holding the cylinder body of sealing other end opening one by one, the external diameter coupling of its intracavity diameter and back-moving spring, the outer peripheral face of its openend is provided with radially outer flange, and it is to be fixed on the described guide frame with the coaxial mode of the pin-guide hole of slide block;
Described back-moving spring is a helical spring, and it is placed in the inner chamber of lining and is sleeved on the back segment of described pilot pin.
The resetting means of the above-mentioned close/open machine that is used for fuse switch, wherein, the free end face of the bottom wall portion of described slide block is an arc surface.
The resetting means of the above-mentioned close/open machine that is used for fuse switch, wherein, the both sides side plate of described slider frame is offered an interlock displacement aperture and a limit pin hole that is vertical waist type respectively.
The technical scheme of the resetting means of the close/open machine that is used for fuse switch of the present invention, its effect is to guarantee that the upper contact head seat is returned to the accuracy of initial position, it have reset flexibly, accurately, the advantage of reliable in action.
Description of drawings
Fig. 1 is the structural representation of the resetting means of the close/open machine that is used for fuse switch of the present invention;
Fig. 2 is the user mode figure of the resetting means of the close/open machine that is used for fuse switch of the present invention.
Embodiment
Below by embodiment particularly and in conjunction with the accompanying drawings technical scheme of the present invention is described:
See also Fig. 1, a kind of resetting means that is used for the close/open machine of fuse switch of the present invention comprises a slide block 31, a pilot pin 32, a slider frame 33, a lining 34 and a back-moving spring 35, wherein,
The diameter of bore coupling of the diameter of pilot pin 32 and back-moving spring 35, its head fixedly is plugged on the pin-guide hole of slide block 31 from the left-external side of the side wall portion 312 of slide block 31;
The cross section of slider frame 33 is the U font, its bottom wall portion 330 surperficial central authorities offer a dropout pin-and-hole, and be that symmetrical centre is provided with four rivet holes with this dropout pin-and-hole, its both sides side plate is offered an interlock displacement aperture 331 and a limit pin hole 332 that is vertical waist type respectively.
Back-moving spring 35 is a helical spring, and it is placed in the inner chamber of lining 34 and on the back segment of the pilot pin 32 that is sleeved on.
General fuse switch comprises fusing carrier, leverage, upper and lower touch base, close/open machine, insulating part, upper and lower binding post and upper and lower inserts.What show among Fig. 2 is close/open machine, and close/open machine is connected on the inserts, and close/open machine comprises trip gear 1, locker 2, resetting means 3 and guide frame 4.The resetting means that is used for the close/open machine of fuse switch of the present invention, it is connected on the inserts by guide frame 4.Lining 34 in the resetting means is to be fixed on the guide frame 4 with the coaxial mode of the pin-guide hole of slide block 31, pilot pin 32 heads are fixed in the pin-guide hole on the slide block 31, be with back-moving spring 35 on the back segment of pilot pin 32, back-moving spring 35 is placed on again and is used for the location in lining 34 inner chambers, slide block 31 is connected with slider frame 33 by rivet 6, slider frame 33 is connected with guide frame 4 by a spacer pin 7 that passes limit pin hole 332 again, slider frame 33 is connected with trip gear 1, be used for resetting of trip gear 1, and then the homing action of upper contact head seat when finishing the fusing carrier sub-switching operation, behind combined floodgate, fusion tube on the fusing carrier is resisted against on the free end face of bottom wall portion 311 of slide block 31, and is firm to guarantee that resetting means 3 resets.
Carry out needing the upper contact head seat to be returned to initial position, so that fusing carrier carries out closing operation next time after sub-switching operation or fuse cut-off at fusing carrier.Resetting means is the part in the newly-increased close/open machine.Its effect is to guarantee that this upper contact head seat is returned to the accuracy of initial position.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (3)
1. resetting means that is used for the close/open machine of fuse switch, described fuse switch comprises fusing carrier, leverage, on, following touch base, close/open machine, insulating part, on, on lower connecting terminal reaches, following inserts, described close/open machine is connected on the inserts, described close/open machine comprises trip gear, locker, resetting means and guide frame, described resetting means is connected with trip gear and is connected with last inserts by guide frame, it is characterized in that, described resetting means comprises a slide block, one pilot pin, one slider frame, one lining and a back-moving spring
Described slide block is the L font, and the central authorities of its bottom wall portion offer a dropout pin-and-hole and are that symmetrical centre is offered four rivet holes with this dropout pin-and-hole, offer a pin-guide hole on its side wall portion;
The diameter of described pilot pin and the diameter of bore of back-moving spring coupling, its head fixedly is plugged on the pin-guide hole of described slide block from the left-external side of the side wall portion of described slide block;
The cross section of described slider frame is the U font, and its bottom wall portion surface central authorities offer a dropout pin-and-hole, and is that symmetrical centre is provided with four rivet holes with described dropout pin-and-hole, so that it is connected with described slide block by rivet;
Described lining is for holding the cylinder body of sealing other end opening one by one, the external diameter coupling of its intracavity diameter and back-moving spring, the outer peripheral face of its openend is provided with radially outer flange, and it is to be fixed on the described guide frame with the coaxial mode of the pin-guide hole of slide block;
Described back-moving spring is a helical spring, and it is placed in the inner chamber of lining and is sleeved on the back segment of described pilot pin.
2. the resetting means that is used for the close/open machine of fuse switch according to claim 1 is characterized in that the free end face of the bottom wall portion of described slide block is an arc surface.
3. the resetting means that is used for the close/open machine of fuse switch according to claim 1 is characterized in that, the both sides side plate of described slider frame is offered an interlock displacement aperture and a limit pin hole that is vertical waist type respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100541162A CN101937802A (en) | 2009-06-30 | 2009-06-30 | Resetting device for switching on/off mechanism in dropping type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100541162A CN101937802A (en) | 2009-06-30 | 2009-06-30 | Resetting device for switching on/off mechanism in dropping type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101937802A true CN101937802A (en) | 2011-01-05 |
Family
ID=43391061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100541162A Pending CN101937802A (en) | 2009-06-30 | 2009-06-30 | Resetting device for switching on/off mechanism in dropping type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101937802A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810438A (en) * | 2012-08-06 | 2012-12-05 | 吉林省金冠电气股份有限公司 | Automatic releasing mechanism and application |
-
2009
- 2009-06-30 CN CN2009100541162A patent/CN101937802A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102810438A (en) * | 2012-08-06 | 2012-12-05 | 吉林省金冠电气股份有限公司 | Automatic releasing mechanism and application |
| CN102810438B (en) * | 2012-08-06 | 2014-08-06 | 吉林省金冠电气股份有限公司 | Automatic releasing mechanism and application |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110105 |