CN203950771U - Fuse jockey - Google Patents
Fuse jockey Download PDFInfo
- Publication number
- CN203950771U CN203950771U CN201320777402.3U CN201320777402U CN203950771U CN 203950771 U CN203950771 U CN 203950771U CN 201320777402 U CN201320777402 U CN 201320777402U CN 203950771 U CN203950771 U CN 203950771U
- Authority
- CN
- China
- Prior art keywords
- fuse
- screw
- jockey
- bellmouth
- screw rod
- 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
Links
- 230000000694 effects Effects 0.000 abstract description 4
- 238000013016 damping Methods 0.000 abstract 3
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000004927 fusion Effects 0.000 description 12
- 238000009434 installation Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001133184 Colletotrichum agaves Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
Fuse jockey, comprises housing and outside hooking part thereof, and described enclosure interior is provided with spring part, and described spring part is arranged on the two ends of housing, is provided with damping block between spring part.The utility model is simple in structure, and cost is low, and in the time that transmission line moves horizontally, the resistance by two springs to damping block and pulling force reduce the swing of circuit, can effectively play damping effect.
Description
Technical field
The utility model belongs to the fitting of electric power utensil, and concrete is fuse jockey.
Background technology
On-load fuse switch (hereinafter to be referred as fuse) is applicable to that rated voltage 10kV, rated current 200A are following, in the distribution line and distribution transformer of frequency 50Hz, as overload and short-circuit protection and point, the use of closing rated load electric current.
Its products characteristics: fuse is made up of pedestal, arc-extinction device two large divisions.When fuse is during in closing position, dynamic and static contact is compressed by Compress Spring, to ensure there is enough pressure between contact, rotating torque spring is equipped with in expulsion tube lower end, after melt packs into, torque spring is tightened, and makes fuse in tension, to ensure expulsion tube self-locking when the closing position.
In the time of circuit overload or the fusing of short circuit melt, fuse, by means of the effect of torque spring, pulls out rapidly in fusion tube, and the heat energy of electric arc produces a large amount of arc extinguishing gases in fusion tube simultaneously, electric arc is extinguished rapidly, to reduce the loss of arcing time and arc extinguishing material.After arc extinction, fusion tube, under the effect of deadweight and bridge-shaped contact Compress Spring, falls automatically, realizes obviously visible fracture.But its shortcoming is:
(1) Product Process is coarse, and workmanship is poor, touch spring elasticity deficiency, cause contact bad and produce spark overheated.
(2) what fusion tube rotation axis was manufactured is coarse dumb; make fusion tube angle not reach code requirement; especially the fusion tube size majority being equipped with does not reach code requirement; fusion tube is long by duckbilled dieback; after causing melt fusing, fusion tube can not fall rapidly; in time by arc cutting, extinguish, cause fusion tube to burn or explode; Fusion tube size is short, the difficulty of closing a floodgate, and contact is bad, produces electric spark, or it is dead to occur to get an electric shock.
(3) fuse rated breaking-capacity is little, and its lower limit is less than the three-phase shortcircuit capacity of protected system.At present, 10kV outdoor drop-out fuse is divided into three types, and the breaking capacity upper limit of 50A, 100A, 200A, 200A fuse switch is 200MVA, and lower limit is 20MVA.According to the ability of its rupturing capacity, we are not difficult to find out, when short trouble, arc extinguishing in time after melt fusing, also easily makes fusion tube burn or explode.
(4) some new switch fusion tube size is mated improper with a fuse fixed contact point size, very easily loosening, run into External Force Acting, vibration or strong wind weather once be in operation, just malfunction and falling voluntarily, not only reduce electricity sales amount, and be difficult to ensure power supply reliability index.
In view of the existence of above-mentioned several respects defect, common way is in recent years that insulating enclosed type fuse is fixed on the cross-arm of the electric post on distribution line with fitting.Insulating enclosed type fuse is a kind of indoor fuse.For the interior sealing cartridge fuse that fills quartz sand filler, when it is by ' melt fusing when stream or short circuit current of overload Shen, free gas after its metal vapors and arcing is subject to the effect of HTHP, spray into the space between quartz sand, contact and be subject to cooled and solidified with quartz sand surface, reduce free gas and the metal vapors of the rear stay of melt evaporation in fossula, thereby made electric current natural zero-crossing, forced arc extinction.In the time that melt fuses, the bracing wire of fuse spring is also broken simultaneously, and ejects in bourdon tube.
Top fixed contact (top fixed electrode) and bottom fixed contact (bottom fixed electrode) are set in insulator body, fusing carrier (fuse unit) is installed between top fixed contact and bottom fixed contact.In fusing carrier, be accommodated with fuse element (melt) and fuse lead-in wire, fuse element is flowed through while exceeding the electric current of setting and is fused at distribution line, thus, disconnects distribution line.
The fuse providing according to above-mentioned utility model document 1, for preventing, in destruction or the induction of electric shock casualties accident of the environmental impact of round salt dust hazard and chemical gas etc., in porcelain Pagoda type insulation, fuse being set.In the past, on fitting installation portion, be provided with fitting, by fitting, pagoda-shaped fuse 1 be fixed on electric post cross-arm.Now, described fitting is with after the fastening fuse of an intermediate plate (hoop) formula fixture, aliging with the through hole of the installation on through hole and cross-arm by being arranged at fixing on the fixture block that intermediate plate (hoop) formula fixture one side extends, cooperation, fastening bolt is spirally connected fastening.Be arranged on thus on electric post cross-arm.
Obviously visible, now, described fitting is with after the fastening fuse of an intermediate plate (hoop) formula fixture, must align with the through hole of the installation on through hole and cross-arm being arranged at fixing on the fixture block that intermediate plate (hoop) formula fixture one side extends, and it aligns, compounding operation is numerous and diverse, labour intensity is large, careless slightly, may cause fuse to come off, damage, and, dismantle, install all very inconvenient.
Utility model content
Easily come off for fuse fastening assembly of the prior art, damage, installation procedure is more complicated, high in cost of production problem.It is a kind of simple in structure that the utility model provides, and easily coordinates and coordinate firmly fuse jockey.
To achieve these goals, the technical solution adopted in the utility model is: fuse jockey, on cross-arm, be provided with the screw coordinating with screw rod, fuse installing component is provided with the bellmouth that is greater than screw, screw rod also passes the bellmouth of fuse installing component through the screw of cross-arm, taper locating ring is passed to screw rod and locates in bellmouth, screw hold-doun nut.
Beneficial effect is: the utility model is because the diameter of fuse is large, be convenient to through, and the size of taper locating ring is little, locating ring, easily through screw rod, is fixed.This jockey compounding operation is simple, and labour intensity is little, and operating process can not cause fuse to come off, damage, and dismounting, easy for installation.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, fuse jockey, on cross-arm 1, be provided with the screw 3 coordinating with screw rod 6, fuse installing component 2 is provided with the bellmouth 4 that is greater than screw 3, screw rod 6 also passes the bellmouth 4 of fuse installing component 3 through the screw 3 of cross-arm 1, taper locating ring 5, through screw rod and in the interior location of bellmouth 4, is screwed to hold-doun nut 7.
By after screw rod 6 precession cross-arms 1, the bellmouth of fuse installing component 24 is inserted in to screw rod 6, taper locating ring 5 is coordinated and inserted in bellmouth 4, then screw hold-doun nut 7, complete installation.
Claims (1)
1. fuse jockey, on cross-arm (1), be provided with the screw (3) coordinating with screw rod (6), fuse installing component (2) is provided with the bellmouth (4) that is greater than screw (3), it is characterized in that: screw rod (6) also passes the bellmouth (4) of fuse installing component (3) through the screw (3) of cross-arm (1), taper locating ring (5) is located through screw rod and in bellmouth (4), screw hold-doun nut (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777402.3U CN203950771U (en) | 2013-12-02 | 2013-12-02 | Fuse jockey |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777402.3U CN203950771U (en) | 2013-12-02 | 2013-12-02 | Fuse jockey |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950771U true CN203950771U (en) | 2014-11-19 |
Family
ID=51892793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320777402.3U Expired - Fee Related CN203950771U (en) | 2013-12-02 | 2013-12-02 | Fuse jockey |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950771U (en) |
-
2013
- 2013-12-02 CN CN201320777402.3U patent/CN203950771U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |