CN203950769U - Hook hole insulating enclosed type fuse fastening assembly - Google Patents
Hook hole insulating enclosed type fuse fastening assembly Download PDFInfo
- Publication number
- CN203950769U CN203950769U CN201320777363.7U CN201320777363U CN203950769U CN 203950769 U CN203950769 U CN 203950769U CN 201320777363 U CN201320777363 U CN 201320777363U CN 203950769 U CN203950769 U CN 203950769U
- Authority
- CN
- China
- Prior art keywords
- hook hole
- fuse
- fastening assembly
- screw rod
- patch
- 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
- 238000012856 packing Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 238000013016 damping Methods 0.000 abstract description 5
- 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
- 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
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Fuses (AREA)
Abstract
Hook hole insulating enclosed type fuse fastening assembly, 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, when transmission line moves horizontally, by two springs, the resistance of damping block and pulling force is reduced to 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 hook hole insulating enclosed type fuse fastening assembly.
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 minute, the use of closing rated load electric current.
Its products characteristics: fuse is comprised 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 guarantee 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 guarantee expulsion tube self-locking when the closing position.
When circuit overload or the fusing of short circuit melt, fuse, by means of the effect of torque spring, is pulled 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, and touch spring elasticity is not enough, causes that contact is bad and to produce spark overheated.
(2) what fusion tube rotation axis was manufactured is coarse dumb; make fusion tube angle not reach rules requirement; especially the fusion tube size majority being equipped with does not reach rules 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, during 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 minute size, very easily loosening, once be in operation, run into External Force Acting, vibration or strong wind weather, just malfunction and falling voluntarily, not only reduce electricity sales amount, and be difficult to guarantee 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.When 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, taken in fuse element (melt) and fuse lead-in wire, fuse element fuses when distribution line is flowed through electric current over setting, thus, disconnects distribution line.
The fuse providing according to above-mentioned utility model document 1, for preventing, in the destruction or the induction of electric shock casualties accident that suffer the environmental impact of 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, by being arranged at fixing on the fixture block that intermediate plate (hoop) formula fixture one side extends, with the installation on through hole and cross-arm, with through hole, aliging, 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 with the installation on through hole and cross-arm, with through hole, align 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
For fuse fastening assembly of the prior art, easily come off, 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 hook hole insulating enclosed type fuse fastening assembly.
To achieve these goals, the technical solution adopted in the utility model is: hook hole insulating enclosed type fuse fastening assembly, the installing component that comprises tubular clamp one side of fastening fuse, described installing component is established the L-type hook hole of the screw rod slipping on cross-arm, also comprise and be fixed on the patch that L-type hook hole coordinates, the patch that is fixed on the cooperation of L-type hook hole is provided with screw rod packing ring, and screw rod packing ring is padded under the screw rod of installing component.
The described patch that is fixed on the cooperation of L-type hook hole, the patch coordinating for being welded in L-type hook hole.
Beneficial effect is: hook of the present utility model hole insulating enclosed type fuse fastening assembly; the fitting of insulating enclosed type fuse aligns with through hole with the installation on through hole and cross-arm to the fixing of fuse; then pack into and be fixed on the patch that L-type hook hole coordinates; installing component is anchored on cross-arm or shaft tower, and screw rod packing ring has fastening and effect damping, and compounding operation is simple; labour intensity is little; operating process can not cause fuse to come off, damages, and dismounting, easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of patch of the present utility model.
Embodiment
As shown in Figure 1, hook hole insulating enclosed type fuse fastening assembly, the installing component 3 that comprises tubular clamp 2 one sides of fastening fuse 1, described installing component 3 is established the L-type hook hole 4 of the screw rod slipping on cross-arm, also comprise and be fixed on the patch 6 that L-type hook hole 4 coordinates, the patch 6 that is fixed on 4 cooperations of L-type hook hole is provided with screw rod packing ring 5, and screw rod packing ring 5 is padded under the screw rod of installing component 3.As Fig. 2, be fixed on the patch 6 that L-type hook hole 4 coordinates, the patch 6 coordinating for being welded in L-type hook hole 4, Welding Structure makes this assembly fixation.The utility model is simple in structure, and damping effect is remarkable.
Fuse fastening assembly is installed fastening for fuse bodies portion, and is fixed on cross-arm, the patch 6 that is welded in 4 cooperations of L-type hook hole is inserted the L-type hook hole 4 through screw rod, tightens after screw rod, and screw rod is not easy to become flexible, and makes to install fastening.
Claims (2)
1. hook hole insulating enclosed type fuse fastening assembly, the installing component (3) that comprises tubular clamp (2) one sides of fastening fuse (1), described installing component (3) is established the L-type hook hole (4) of the screw rod slipping on cross-arm, it is characterized in that: also comprise and be fixed on the patch (6) that L-type hook hole (4) coordinates, the patch (6) that is fixed on L-type hook hole (4) cooperation is provided with screw rod packing ring (5), and screw rod packing ring (5) is padded under the screw rod of installing component (3).
2. hook according to claim 1 hole insulating enclosed type fuse fastening assembly, is characterized in that: the described patch (6) that is fixed on L-type hook hole (4) cooperation, the patch (6) coordinating for being welded in L-type hook hole (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777363.7U CN203950769U (en) | 2013-12-02 | 2013-12-02 | Hook hole insulating enclosed type fuse fastening assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320777363.7U CN203950769U (en) | 2013-12-02 | 2013-12-02 | Hook hole insulating enclosed type fuse fastening assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203950769U true CN203950769U (en) | 2014-11-19 |
Family
ID=51892791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320777363.7U Expired - Fee Related CN203950769U (en) | 2013-12-02 | 2013-12-02 | Hook hole insulating enclosed type fuse fastening assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203950769U (en) |
-
2013
- 2013-12-02 CN CN201320777363.7U patent/CN203950769U/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 |