CN103681150B - Upper contact base of drop-out fuse - Google Patents
Upper contact base of drop-out fuse Download PDFInfo
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- CN103681150B CN103681150B CN201310675917.7A CN201310675917A CN103681150B CN 103681150 B CN103681150 B CN 103681150B CN 201310675917 A CN201310675917 A CN 201310675917A CN 103681150 B CN103681150 B CN 103681150B
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- backup pad
- stage clip
- compression spring
- contact head
- upper contact
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Abstract
The invention discloses an upper contact base of a drop-out fuse. The upper contact base of the drop-out fuse comprises an upper contact base body and an oscillating bar mechanism, wherein the upper contact base body is of a horizontally-arranged plate-shaped structure. The oscillating bar mechanism comprises an upper supporting plate which is horizontally arranged, a rectangular frame which is horizontally arranged, a compression spring structure and two swing structures, wherein the compression spring structure is connected with the middle of the upper supporting plate, the left side and the right side of the compression spring structure are respectively provided with one swing structure, the compression spring structure comprises an upper compression spring base, a lower compression spring base, a compression spring guide rod, a compression spring and a compression spring supporting rod, and each swing structure comprises a guide pillar, a guide sleeve, a spring and a welded plate. A traditional upper contact base of a drop-out fuse is replaced by the upper contact base of the drop-out fuse, reliable motions of switch-on operation and switch-off operation of a fuse carrying piece can be achieved, large contact pressure is ensured, and the switch-on operation and the switch-off operation can be carried out only through small operating force.
Description
Technical field
The present invention 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 with carry out equipment throwing, cut the use of operation.Its operation principle is: penetrated by fuse in fusion tube, two ends are tightened, and make fuse be positioned at fusion tube upper middle side, the tension force that upper moving contact is strained due to fuse and being upturned perpendicular to cartridge fuse, with insulated tension pole, upper moving contact is pushed in upper static contact, 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 gas under high arc temperature effect, and overpressure is sharply increased, and gas is ejection at a high speed outwards; strong longitudinal arc blow-out is formed to electric arc, makes electric arc elongate 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, needs larger operating physical force when fusing carrier on/off switch.Along with fuse cut-offs constantly increasing of capacity, require there is more contact between contact, this certainly will cause will there be larger operating physical force during divide-shut brake, therefore urgently improves.
Summary of the invention
The object of the invention is the upper contact head seat that a kind of fuse switch is provided to overcome the deficiencies in the prior art, it changes motion mode to reach labour-saving object, replace the upper contact head seat of traditional fuse switch, the action message of fusing carrier on/off switch can be realized, and while 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 realizing 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 arranges swinging structure described in a group respectively, 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 are arranged 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 a draw-in groove respectively;
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 are arranged 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 described compression spring seat and the middle part of lower press spring base, the upper surface of described compression spring seat is connected with the lower surface of described upper backup pad, and the center of the guide rod jack of the center of the pilot hole of upper backup pad, compression spring seat, the guide rod jack of lower press spring base be centrally located on same vertical line;
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 threaded upper ends of stage clip guide rod connects a nut, this nut is positioned on the upper surface of described upper backup pad, described compression spring sleeve to be connected on described stage clip guide rod and between described upper spring seat and lower spring cup, 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 with described lower press spring base and arranges;
Described stage clip support bar vertically arranges and passes the inside of described rectangular frame, and the upper end of described stage clip support bar is connected by the lower end of bearing with described stage clip guide rod, and the lower end of described stage clip support bar is connected with described upper contact head seat body by pivot pin;
Often organize described swinging structure and include 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;
The upper end of the guide pillar of swinging structure described in two groups is plugged on the draw-in groove being positioned at the left and right side of described pilot hole of described upper backup pad correspondingly, and is connected with pivot pin with corresponding draw-in groove;
The lower end of the welded plate of swinging structure described in two groups 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 in the convex structure protruded downwards, 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 cover respectively.
The upper contact head seat of above-mentioned fuse switch, wherein, arranges a plain cushion, arranges a cushion between this plain cushion and described nut between the contact-making surface of described nut and described upper backup pad.
The upper contact head seat of above-mentioned fuse switch, wherein, described upper backup pad is also offered a upper connecting terminal connecting hole, and this upper connecting terminal connecting hole and described pilot hole coaxial spaced are arranged.
The technical scheme of the upper contact head seat of fuse switch of the present invention changes the motion mode of original upper contact head seat body, namely changed into by single moving up and down and move up and down and the pattern combined that swings, after linking with close/open machine, just can realize the action message of fusing carrier on/off switch, and while 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 invention;
Fig. 2 is the structural representation of the fuse switch using upper contact head seat of the present invention.
Embodiment
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, embodiments of the invention, 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 in 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 one group of swinging structure 5 respectively.
Upper backup pad 2 is positioned at the top of upper contact head seat body 1, and upper backup pad 2 and upper contact head seat body 1 are arranged one on the other in opposite directions, rectangular frame 3 is between described upper backup pad 2 and upper contact head seat body 1, the pilot hole of a waist type is offered at the middle part of upper backup pad 2, and the left and right side that the lower surface of upper backup pad 2 is positioned at pilot hole connects a draw-in groove 21 respectively.
Stage clip structure 4 comprises compression spring seat 41, lower press spring base 42, stage clip guide rod 43, stage clip 44 and stage clip support bar 45.Compression spring seat 41 and lower press spring base 42 are arranged one on the other in opposite directions, and compression spring seat 41 and lower press spring base 42 are between upper backup pad 2 and rectangular frame 3, a guide rod jack is all offered at the middle part of compression spring seat 41 and the middle part of lower press spring base 42, the upper surface of described compression spring seat 41 is connected with the lower surface of upper backup pad 2, and the center of the guide rod jack of the center of the pilot hole of upper backup pad 2, compression spring seat 41, being centrally located on same vertical line of the guide rod jack of lower press spring base 42.Stage clip guide rod 43 is plugged in the guide rod jack of the pilot hole of upper backup pad 2, the guide rod jack of compression spring seat 41, lower press spring base 42 successively, the threaded upper ends of stage clip guide rod 43 connects a nut 46, this nut 46 is positioned on the upper surface of described upper backup pad 2, one plain cushion 47 is set between the contact-making surface of nut 46 and upper backup pad 2, a cushion 48 is set between this plain cushion 47 and nut 46.Stage clip 44 is socketed on stage clip guide rod 43 and between upper spring seat 41 and lower spring cup 42, the upper end of stage clip 44 contacts with compression spring seat 41 and arranges, and the lower end of stage clip 44 contacts with lower press spring base 42 and arranges.Stage clip support bar 45 vertically arranges and passes the inside of rectangular frame 3, stage clip support bar 45 and stage clip guide rod 43 are coaxially arranged, the inside of rectangular frame 3 is passed in the upper end of stage clip support bar 45, and be flexibly connected with the lower end of stage clip guide rod 43 by bearing 49, the lower end of stage clip support bar 45 is flexibly connected with upper contact head seat body 1 by pivot pin 451, and stage clip support bar 45 can swing.
Often organize swinging structure 5 and include 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 lower end of guide pillar 51 and the upper end of welded plate 54 are 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 being positioned at the left and right side of described pilot hole 21 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 in the convex structure protruded downwards, 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 cover respectively.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, increase the aesthetic measure of upper contact head seat of the present invention.Upper backup pad 2 is also offered a upper connecting terminal connecting hole, this upper connecting terminal connecting hole and pilot hole coaxial spaced are arranged.
In upper contact head seat of the present invention, stage clip support bar 45 with bearing 49 for rotation axis can swing, guide pillar 51 is rotation axis with pivot pin 511 and swings 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 swung under the drive of welded plate 54 thereupon.Because the lower end of welded plate 54 is in the convex structure protruded downwards, when the left and right side of the lower end of welded plate 54 contacts with upper touch base body 1, namely welded plate 54 stops swinging, the swinging structure 5 of whole upper contact head seat stops swinging, can limit the angle swung of guide pillar 51 like this, this angle is generally 20 ~ 30 °.
Refer to Fig. 2 again, the fuse switch of upper contact head seat of the present invention is used to comprise fusing carrier 6 and insulating part 7, insulating part 7 top arranges 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 upper connecting terminal 9 being arranged on insulating part 7 top.Upper contact head seat of the present invention in use, the upper end of fusing carrier 6 is connected with the middle part opening and closing 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 invention is up and down with the pattern combined that swings, 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 while 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 used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
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, and the left and right side of described stage clip structure arranges swinging structure described in a group respectively, 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 are arranged 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 a draw-in groove respectively;
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 are arranged 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 described compression spring seat and the middle part of lower press spring base, the upper surface of described compression spring seat is connected with the lower surface of described upper backup pad, and the center of the guide rod jack of the center of the pilot hole of upper backup pad, compression spring seat, the guide rod jack of lower press spring base be centrally located on same vertical line;
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 threaded upper ends of stage clip guide rod connects a nut, this nut is positioned on the upper surface of described upper backup pad, described compression spring sleeve to be connected on described stage clip guide rod and between 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 with described lower press spring base and arranges;
Described stage clip support bar vertically arranges and passes the inside of described rectangular frame, and the upper end of described stage clip support bar is connected by the lower end of bearing with described stage clip guide rod, and the lower end of described stage clip support bar is connected with described upper contact head seat body by pivot pin;
Often organize described swinging structure and include 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;
The upper end of the guide pillar of swinging structure described in two groups is plugged on the draw-in groove being positioned at the left and right side of described pilot hole of described upper backup pad correspondingly, and is connected with pivot pin with corresponding draw-in groove;
The lower end of the welded plate of swinging structure described in two groups 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 in the convex structure protruded downwards, 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 cover respectively.
4. the upper contact head seat of fuse switch according to claim 1 and 2, is characterized in that, arranges a plain cushion between the contact-making surface of described nut and described upper backup pad, arranges a cushion between this plain cushion and described nut.
5. the upper contact head seat of fuse switch according to claim 1 and 2, is characterized in that, described upper backup pad is also offered a upper connecting terminal connecting hole, and this upper connecting terminal connecting hole and described pilot hole coaxial spaced are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675917.7A CN103681150B (en) | 2013-12-12 | 2013-12-12 | Upper contact base of drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675917.7A CN103681150B (en) | 2013-12-12 | 2013-12-12 | Upper contact base of drop-out fuse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103681150A CN103681150A (en) | 2014-03-26 |
| CN103681150B true CN103681150B (en) | 2015-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675917.7A Active CN103681150B (en) | 2013-12-12 | 2013-12-12 | Upper contact base of drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103681150B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112420465B (en) * | 2020-11-02 | 2024-05-03 | 深圳市万高宝电力器材有限公司 | Drop-out fuse for power construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323193A (en) * | 1971-02-24 | 1973-07-11 | ||
| US4857879A (en) * | 1987-07-02 | 1989-08-15 | Brown Boveri (Australia) Pty, Limited | Drop-out expulsion fuse |
| CN101937815A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Linkage structure for upper contact seat and opening and closing mechanism in drop-out type fuse |
| CN101937805A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Swing structure for upper contact base of drop-out fuse |
| CN203631469U (en) * | 2013-12-12 | 2014-06-04 | 国网上海市电力公司 | Upper contact seat of drop-type fuse |
-
2013
- 2013-12-12 CN CN201310675917.7A patent/CN103681150B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1323193A (en) * | 1971-02-24 | 1973-07-11 | ||
| US4857879A (en) * | 1987-07-02 | 1989-08-15 | Brown Boveri (Australia) Pty, Limited | Drop-out expulsion fuse |
| CN101937815A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Linkage structure for upper contact seat and opening and closing mechanism in drop-out type fuse |
| CN101937805A (en) * | 2009-06-30 | 2011-01-05 | 浙江赛菲特电气有限公司 | Swing structure for upper contact base of drop-out fuse |
| CN203631469U (en) * | 2013-12-12 | 2014-06-04 | 国网上海市电力公司 | Upper contact seat of drop-type fuse |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103681150A (en) | 2014-03-26 |
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Inventor after: Shi Yong Inventor after: Shen Saibing Inventor after: Zhu Lihua Inventor before: Zhu Qin Inventor before: Li Ye Inventor before: Li Shuqing Inventor before: Chen Ting Inventor before: Yang Sujia |
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