CN203631469U - Upper contact seat of drop-type fuse - Google Patents
Upper contact seat of drop-type fuse Download PDFInfo
- Publication number
- CN203631469U CN203631469U CN201320818077.0U CN201320818077U CN203631469U CN 203631469 U CN203631469 U CN 203631469U CN 201320818077 U CN201320818077 U CN 201320818077U CN 203631469 U CN203631469 U CN 203631469U
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- China
- Prior art keywords
- backup pad
- stage clip
- contact head
- upper contact
- head seat
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- Withdrawn - After Issue
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Abstract
The utility model discloses an upper contact seat of a drop-type fuse. The upper contact seat comprises an upper contact seat body and a swing rod mechanism. The upper contact seat body is a plate-shaped structure which is arranged horizontally. The swing rod mechanism comprises an upper support plate arranged horizontally, a rectangular frame arranged horizontally, a pressure spring structure and two sets of swing structures. The pressure spring structure is connected with the middle part of the upper support plate. The left side and the right side of the pressure spring structure are respectively provided with one set of swing structure. The pressure spring structure comprises an upper pressure spring seat, a lower pressure spring seat, a pressure spring guide rod, a pressure spring and a pressure spring support rod. Each swing structure comprises a guide column, a guide sleeve, a spring and a welded plate. A conventional upper contact seat of the drop-type fuse is replaced by the upper contact seat provided by the utility model, the reliable opening and closing action of a fuse carrier is realized, a relatively large contact pressure is ensured, and at the same time, the opening and closing operation can be carried out by only a relatively small operating force.
Description
Technical field
The utility model relates to a kind of upper contact head seat 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 the features such as outdoor environment is strong, be widely used in 10kV distribution line and distribution transformer primary side as protection and carry out equipment throwing, cut the use of operation.Its operation principle is: fuse is penetrated in fusion tube, tighten at two ends, and make fuse be positioned at fusion tube upper middle side, upper moving contact is upturned perpendicular to cartridge fuse due to the tension force of fuse tension, upper moving contact is pushed in upper static contact with insulated tension pole, become closure state ("on" position) also to keep this state.When protected circuit breaks down, when fault current makes fuse failure, form electric arc; expulsion tube decomposites a large amount of gas under high arc temperature effect, and overpressure is sharply increased, and gas is ejection at a high speed outwards; electric arc is formed to strong longitudinal arc blow-out, electric arc is elongated rapidly and extinguish.Meanwhile, due to fuse failure, the pulling force of fuse disappears, and retaining mechanism is discharged, and cartridge fuse, under the elastic force of upper static contact and the effect of deadweight thereof, falls around lower shaft upset, forms obvious break distance.Circuit is disconnected, excision faulty section circuit or faulty equipment.
Conventional fuse switch comprises fusing carrier, insulating part and close/open machine, and the top of fusing carrier is connected with upper contact head seat, and upper contact head seat is flexibly connected with close/open machine by a set bar.Insulating part top arranges inserts and upper connecting terminal, and upper inserts is connected with close/open machine, and upper contact head seat is connected with upper inserts and upper connecting terminal.The upper contact head seat of the fuse switch of prior art generally can only carry out up and down, in the time of fusing carrier on/off switch, need to have larger operating physical force.Along with fuse cut-offs constantly increasing of capacity, requiring has more contact between contact, when this certainly will cause divide-shut brake, will have larger operating physical force, therefore urgently improves.
Summary of the invention
The purpose of this utility model is the upper contact head seat that a kind of fuse switch is provided in order to overcome the deficiencies in the prior art, it is to change motion mode in order to reach labour-saving object, replace the upper contact head seat of traditional fuse switch, can realize the action message of fusing carrier on/off switch, and in ensuring larger contact, as long as there is less operating physical force just can carry out on/off switch operation.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of upper contact head seat of fuse switch, comprise upper contact head seat body and swing-bar mechanism, described upper contact head seat body is horizontally disposed platy structure, described swing-bar mechanism comprises horizontally disposed upper backup pad, horizontally disposed rectangular frame, stage clip structure and two groups of swinging structures, described stage clip structure is connected with the middle part of described upper backup pad, the left and right side of described stage clip structure arrange respectively one group described in swinging structure, wherein:
Described upper backup pad is positioned at the top of described upper contact head seat body, and upper backup pad and upper contact head seat body arrange one on the other in opposite directions, described rectangular frame is between described upper backup pad and upper contact head seat body, the pilot hole of a waist type is offered at the middle part of described upper backup pad, and the left and right side that the lower surface of described upper backup pad is positioned at described pilot hole connects respectively a draw-in groove;
Described stage clip structure comprises compression spring seat, lower press spring base, stage clip guide rod, stage clip and stage clip support bar;
Described compression spring seat and lower press spring base arrange one on the other in opposite directions, and described compression spring seat and lower press spring base are between described upper backup pad and rectangular frame, a guide rod jack is all offered at the middle part of the middle part of described compression spring seat and lower press spring base, the upper surface of described compression spring seat is connected with the lower surface of described upper backup pad, and being centered close on same vertical line of the guide rod jack of the center of the guide rod jack of the center of the pilot hole of upper backup pad, compression spring seat, lower press spring base;
Described stage clip guide rod is plugged in the guide rod jack of the pilot hole of upper backup pad, the guide rod jack of compression spring seat, lower press spring base successively, the upper end of the stage clip guide rod nut that is threaded, this nut is positioned on the upper surface of described upper backup pad, described compression spring sleeve is connected on described stage clip guide rod and between described compression spring seat and lower press spring base, the upper end of described stage clip and described compression spring seated connection touch and arrange, and the lower end of described stage clip contacts setting with described lower press spring base;
The vertical inside that arranges and pass described rectangular frame of described stage clip support bar, the upper end of described stage clip support bar is connected with the lower end of described stage clip guide rod by bearing, and the lower end of described stage clip support bar is connected with described upper contact head seat body by pivot pin;
Described in every group, swinging structure includes guide pillar, guide pin bushing, spring and welded plate, described spring housing is connected on described guide pillar, described guide pin bushing is socketed on described spring, the lower end of described guide pillar and the upper end of welded plate are plugged on the inside of described rectangular frame, and the lower end of described guide pillar is connected with the upper end of described welded plate and the forward and backward frame of described rectangular frame by pivot pin;
Described in two groups, the upper end of the guide pillar of swinging structure is plugged on the draw-in groove of the left and right side that is positioned at described pilot hole of described upper backup pad correspondingly, and is connected with pivot pin with corresponding draw-in groove;
Described in two groups, the lower end of the welded plate of swinging structure is connected with described upper contact head seat body by pivot pin.
The upper contact head seat of above-mentioned fuse switch, wherein, the lower end of described welded plate is the convex structure of downward protrusion, and the middle part of the lower end of described welded plate is connected with described upper contact head seat body by pivot pin.
The upper contact head seat of above-mentioned fuse switch, wherein, the front and back ends of described upper backup pad vertically connects respectively cover.
The upper contact head seat of above-mentioned fuse switch, wherein, arranges a plain cushion between described nut and the contact-making surface of described upper backup pad, between this plain cushion and described nut, a cushion is set.
The upper contact head seat of above-mentioned fuse switch, wherein, also offers a upper connecting terminal connecting hole on described upper backup pad, this upper connecting terminal connecting hole and described pilot hole coaxial spaced arrange.
The technical scheme of the upper contact head seat of fuse switch of the present utility model has changed the motion mode of original upper contact head seat body, change into and move up and down and the pattern that swings and combine by single moving up and down, after close/open machine interlock, just can realize the action message of fusing carrier on/off switch, and in ensuring larger contact, as long as there is less operating physical force just can carry out on/off switch operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of upper contact head seat of the present utility model;
Fig. 2 is the structural representation that uses the fuse switch of upper contact head seat of the present utility model.
Embodiment
In order to make those skilled in the art can understand better the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, embodiment of the present utility model, a kind of upper contact head seat of fuse switch, comprise upper contact head seat body 1 and swing-bar mechanism, upper contact head seat body 1 is horizontally disposed platy structure, swing-bar mechanism comprises horizontally disposed upper backup pad 2, horizontally disposed rectangular frame 3, stage clip structure 4 and two groups of swinging structures 5, and stage clip structure 4 is connected with the middle part of upper backup pad 2, and the left and right side of stage clip structure 4 arranges respectively one group of swinging structure 5.
Every group of swinging structure 5 includes guide pillar 51, guide pin bushing 52, spring 53 and welded plate 54, spring 53 is socketed on guide pillar 51, guide pin bushing 52 is socketed on spring 53, the upper end of the lower end of guide pillar 51 and welded plate 54 is plugged on the inside of rectangular frame 3, and the lower end of guide pillar 51 is connected with the upper end of welded plate 54 and the forward and backward frame of rectangular frame 3 by pivot pin 512.
The upper end of the guide pillar 51 of two groups of swinging structures 5 is plugged on the draw-in groove 21 of the left and right side of the described pilot hole 21 of being positioned at of upper backup pad 2 correspondingly, and is connected with pivot pin 511 with corresponding draw-in groove 21.The lower end of the welded plate 54 of two groups of swinging structures 5 is flexibly connected with upper contact head seat body 1 by pivot pin 541.The lower end of welded plate 54 is the convex structure of downward protrusion, and the middle part of the lower end of welded plate 54 is flexibly connected with upper contact head seat body 1 by pivot pin.
Preferably, the front and back ends of upper backup pad 2 vertically connects respectively cover.The lower end of this lower cover flushes with the lower end of upper contact head seat body 1, stage clip structure 4 and two groups of swinging structures 5 can be covered like this, increases the aesthetic measure of upper contact head seat of the present utility model.On upper backup pad 2, also offer a upper connecting terminal connecting hole, this upper connecting terminal connecting hole and pilot hole coaxial spaced arrange.
In upper contact head seat of the present utility model, stage clip support bar 45 can swing take bearing 49 as rotation axis, guide pillar 51 swings take pivot pin 511 as rotation axis and with certain angle, and the equidirectional motion of guide pillar 51 of two groups of swinging structures 5, welded plate 54 swings with certain angle thereupon, and upper touch base body 1 moves up and down and the compound motion swinging under the drive of welded plate 54 thereupon.Because the lower end of welded plate 54 is the convex structure of downward protrusion, when the left and right side of the lower end of welded plate 54 contacts with upper touch base body 1, welded plate 54 stops swinging, the swinging structure 5 of whole upper contact head seat stops swinging, can limit like this angle swinging of guide pillar 51, this angle is generally 20～30 °.
Refer to again Fig. 2, use the fuse switch of upper contact head seat of the present utility model to comprise fusing carrier 6 and insulating part 7, insulating part 7 tops arrange inserts 8 and upper connecting terminal 9, upper inserts 8 is connected with close/open machine 10, and upper contact head seat is connected with the upper inserts 8 and the upper connecting terminal 9 that are arranged on insulating part 7 tops.Upper contact head seat of the present utility model in use, the upper end of fusing carrier 6 opens and closes and is connected with the middle part of the lower surface of upper contact head seat body 1, upper backup pad 2 is connected with bolt with upper connecting terminal 9 by the upper connecting terminal connecting hole on it, and upper contact head seat body 1 is flexibly connected with close/open machine 10 by a set bar.
The motion mode of the upper contact head seat body of fuse switch of the present utility model is the up and down pattern with swinging and combining, replace the upper contact head seat of traditional fuse switch, after linking with close/open machine, just can realize the action message of fusing carrier on/off switch, and in ensuring larger contact, as long as there is less operating physical force just can carry out on/off switch operation.
Those of ordinary skill in the art will be appreciated that, above embodiment is only for the utility model is described, and be not used as restriction of the present utility model, as long as within the scope of connotation of the present utility model, variation, modification to the above embodiment all will drop within the scope of claims of the present utility model.
Claims (5)
1. the upper contact head seat of a fuse switch, comprise upper contact head seat body and swing-bar mechanism, described upper contact head seat body is horizontally disposed platy structure, it is characterized in that, described swing-bar mechanism comprises horizontally disposed upper backup pad, horizontally disposed rectangular frame, stage clip structure and two groups of swinging structures, described stage clip structure is connected with the middle part of described upper backup pad, the left and right side of described stage clip structure arrange respectively one group described in swinging structure, wherein:
Described upper backup pad is positioned at the top of described upper contact head seat body, and upper backup pad and upper contact head seat body arrange one on the other in opposite directions, described rectangular frame is between described upper backup pad and upper contact head seat body, the pilot hole of a waist type is offered at the middle part of described upper backup pad, and the left and right side that the lower surface of described upper backup pad is positioned at described pilot hole connects respectively a draw-in groove;
Described stage clip structure comprises compression spring seat, lower press spring base, stage clip guide rod, stage clip and stage clip support bar;
Described compression spring seat and lower press spring base arrange one on the other in opposite directions, and described compression spring seat and lower press spring base are between described upper backup pad and rectangular frame, a guide rod jack is all offered at the middle part of the middle part of described compression spring seat and lower press spring base, the upper surface of described compression spring seat is connected with the lower surface of described upper backup pad, and being centered close on same vertical line of the guide rod jack of the center of the guide rod jack of the center of the pilot hole of upper backup pad, compression spring seat, lower press spring base;
Described stage clip guide rod is plugged in the guide rod jack of the pilot hole of upper backup pad, the guide rod jack of compression spring seat, lower press spring base successively, the upper end of the stage clip guide rod nut that is threaded, this nut is positioned on the upper surface of described upper backup pad, described compression spring sleeve is connected on described stage clip guide rod and between described compression spring seat and lower press spring base, the upper end of described stage clip and described compression spring seated connection touch and arrange, and the lower end of described stage clip contacts setting with described lower press spring base;
The vertical inside that arranges and pass described rectangular frame of described stage clip support bar, the upper end of described stage clip support bar is connected with the lower end of described stage clip guide rod by bearing, and the lower end of described stage clip support bar is connected with described upper contact head seat body by pivot pin;
Described in every group, swinging structure includes guide pillar, guide pin bushing, spring and welded plate, described spring housing is connected on described guide pillar, described guide pin bushing is socketed on described spring, the lower end of described guide pillar and the upper end of welded plate are plugged on the inside of described rectangular frame, and the lower end of described guide pillar is connected with the upper end of described welded plate and the forward and backward frame of described rectangular frame by pivot pin;
Described in two groups, the upper end of the guide pillar of swinging structure is plugged on the draw-in groove of the left and right side that is positioned at described pilot hole of described upper backup pad correspondingly, and is connected with pivot pin with corresponding draw-in groove;
Described in two groups, the lower end of the welded plate of swinging structure is connected with described upper contact head seat body by pivot pin.
2. the upper contact head seat of fuse switch according to claim 1, is characterized in that, the lower end of described welded plate is the convex structure of downward protrusion, and the middle part of the lower end of described welded plate is connected with described upper contact head seat body by pivot pin.
3. the upper contact head seat of fuse switch according to claim 1 and 2, is characterized in that, the front and back ends of described upper backup pad vertically connects respectively cover.
4. the upper contact head seat of fuse switch according to claim 1 and 2, is characterized in that, between described nut and the contact-making surface of described upper backup pad, a plain cushion is set, and between this plain cushion and described nut, a cushion is set.
5. the upper contact head seat of fuse switch according to claim 1 and 2, is characterized in that, also offers a upper connecting terminal connecting hole on described upper backup pad, and this upper connecting terminal connecting hole and described pilot hole coaxial spaced arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818077.0U CN203631469U (en) | 2013-12-12 | 2013-12-12 | Upper contact seat of drop-type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818077.0U CN203631469U (en) | 2013-12-12 | 2013-12-12 | Upper contact seat of drop-type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203631469U true CN203631469U (en) | 2014-06-04 |
Family
ID=50817921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320818077.0U Withdrawn - After Issue CN203631469U (en) | 2013-12-12 | 2013-12-12 | Upper contact seat of drop-type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203631469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681150A (en) * | 2013-12-12 | 2014-03-26 | 国网上海市电力公司 | Upper contact base of drop-out fuse |
-
2013
- 2013-12-12 CN CN201320818077.0U patent/CN203631469U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681150A (en) * | 2013-12-12 | 2014-03-26 | 国网上海市电力公司 | Upper contact base of drop-out fuse |
| CN103681150B (en) * | 2013-12-12 | 2015-07-08 | 国网上海市电力公司 | Upper contact base of drop-out fuse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140604 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |