CN203910729U - Saving type drop-out fuse - Google Patents
Saving type drop-out fuse Download PDFInfo
- Publication number
- CN203910729U CN203910729U CN201420301820.XU CN201420301820U CN203910729U CN 203910729 U CN203910729 U CN 203910729U CN 201420301820 U CN201420301820 U CN 201420301820U CN 203910729 U CN203910729 U CN 203910729U
- Authority
- CN
- China
- Prior art keywords
- fuse
- wire
- fixedly connected
- fixed
- swivel nut
- 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.)
- Active
Links
Abstract
The utility model discloses a saving type drop-out fuse, which is characterized in that a fuse wire comprises an elastic upper wire, a fuse body and a lower wire, one end of the elastic upper wire is fixedly connected with an upper contact of a fuse tube, the other end is provided with an upper conductive screw sleeve, one end of the lower wire penetrates through a lower moving contact of the fuse tube and is fixedly connected with a lower static contact, the other end of the lower wire is provided with a lower conductive screw sleeve corresponding to the upper conductive screw sleeve, and two ends of the fuse body are provided with threaded rods matched with the upper conductive screw sleeve and the lower conductive screw sleeve. When the saving type drop-out fuse is installed, the overall fuse wire is enabled to have high tension resistance because of an action of the elastic upper wire, thereby being capable of effectively preventing occurrence of a phenomenon that the fuse body is stressed and snaps from tension. In addition, the elastic upper wire, the lower wire and the fuse body are connected through screw threads, so that the blown fuse body can be separated from the elastic upper wire and the lower wire conveniently, a new fuse body can be replaced, and the elastic upper wire and the lower wire are enabled to be used for multiple times.
Description
Technical field
The utility model relates to a kind of fuse field, and more particularly, it relates to a kind of economizing type fuse switch that can reduce the wasting of resources.
Background technology
At present, in electric power system, high-tension fuse has the effect of short-circuit protection, antioverloading and buffer circuit, and to the less demanding place of protective value, it can be used in conjunction with isolating switch, replaces automatic air-break switch; Can also be used in conjunction with on-load switch, replace the high circuit breaker of price, therefore in China's high voltage power transmission and transforming system, be used widely.
Economizing type fuse switch is by insulator bracket; upper and lower fixed contact, cartridge fuse and fuse four part compositions; fixed contact is arranged on the upper and lower two ends of insulator; mounting panel is fixed in the middle of insulator; fuse is arranged in cartridge fuse; in the time being short-circuited or loading overrate in circuit, melt fusing plays a protective role to the electrical equipment of power equipment and use.
Fuse in tradition economizing type fuse switch, there is following several unfavorable factor in using and changing of they: one, melt is position the thinnest in fuse, in use easily occurs the stressed phenomenon of snapping of melt; Two, melt, after fusing, will abandon whole fuse, but other positions of its fuse are all intact, abandon like this waste of the resource just causing; Three, Renewal process needs many people to coordinate just and can complete, and due to the existence of above-mentioned several reasons, brings very large trouble to work about electric power person and vast electricity consumption client.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of economizing type fuse switch that can reduce the wasting of resources.
For achieving the above object, the utility model provides following technical scheme: a kind of economizing type fuse switch, comprise insulator bracket and the fuse tube that is provided with fuse, the two ends of insulator bracket are provided with, lower fixed contact, the two ends of fuse tube are provided with, lower moving contact, fuse comprises elasticity upper conductor, melt and lower wire, elasticity upper conductor one end is fixedly connected with fuse tube upper contact head, the other end is provided with conduction swivel nut, lower wire one end is fixedly connected with lower fixed contact through the lower moving contact of fuse tube, the lower wire other end is provided with the lower conduction swivel nut corresponding with upper conduction swivel nut, melt two ends are provided with upper, the suitable threaded rod of lower conduction swivel nut.
By adopting technique scheme, in installing, because the effect of elasticity upper conductor, just allow whole fuse have stronger tensile property, can effectively prevent the generation of the stressed phenomenon of snapping of melt, and because its elasticity upper conductor, lower wire and melt be all threaded connection together with, so just facilitated the melt of fusing separated with lower wire from elasticity upper conductor, can replace with new melt, allow elasticity upper conductor and lower wire realize repeatedly and utilize.
The utility model is further set to: described elasticity upper conductor comprises that fixed block, constant force spring and " Y " shape are connected wire, described upper conductor is connected to fuse tube upper contact head by fixed block, described constant force spring one end is fixedly connected with fixed block, other end turnup becomes fixed via, in described fixed via, be provided with can be fixing in fixed via the axis of rolling, described axis of rolling two ends are connected wire furcated end with " Y " shape and are fixedly connected with, and described " Y " shape connects the wire other end and is fixedly connected with upper conduction swivel nut.
By adopting technique scheme, the use of constant force spring can ensure that at force-extension fuse be the pulling force that can keep constant, and the pulling force that fuse is subject to can be ensured in the deformation yield limit of melt, can effectively protect in time melt in installation.
The utility model is further set to: on described fuse tube, moving contact is provided with fixed via, fixed block comprises through hole fixture block and the contiguous block being fixedly connected with through hole fixture block, described through hole fixture block and fixed via interference fit, contiguous block is fixedly connected with constant force spring through fixed via.
By adopting technique scheme, in installing, need only fuse is passed in fixed via, allow through hole fixture block and fixed via clamping, so just complete the steady job of moving contact on fuse and fuse tube, greatly simplify individual work, can alleviate greatly installer's work load.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model economizing type fuse switch embodiment;
Fig. 2 is the partial enlarged drawing of A in Fig. 1;
Fig. 3 is the structural representation of fuse in the utility model economizing type fuse switch embodiment.
Reference numeral: 1, insulator bracket; 11, upper static contact; 12, lower fixed contact; 2, fuse; 21, elasticity upper conductor; 211, fixed block; 2111, through hole fixture block; 2112, contiguous block; 212, constant force spring; 2121, fixed via; 2122, the axis of rolling; 213, " Y " shape connects wire; 22, melt; 23, lower wire; 3, fuse tube; 31, upper moving contact; 311, fixed via; 32, lower moving contact; 4, upper conduction swivel nut; 5, lower conduction swivel nut; 6, threaded rod.
Embodiment
Referring to figs. 1 through Fig. 3, the utility model economizing type fuse switch embodiment is described further.
A kind of economizing type fuse switch, comprise insulator bracket 1 and the fuse tube 3 that is provided with fuse 2, the two ends of insulator bracket 1 are provided with, lower fixed contact 12, the two ends of fuse tube 3 are provided with, lower moving contact 32, fuse 2 comprises elasticity upper conductor 21, melt 22 and lower wire 23, elasticity upper conductor 21 one end are fixedly connected with fuse tube 3 upper contact heads, the other end is provided with conduction swivel nut 4, lower wire 23 one end are fixedly connected with lower fixed contact 12 through the lower moving contact 32 of fuse tube 3, lower wire 23 other ends are provided with the lower conduction swivel nut 5 corresponding with upper conduction swivel nut 4, melt 22 two ends are provided with upper, the threaded rod 6 that lower conduction swivel nut 5 is suitable.In installing, because the effect of elasticity upper conductor 21, just allow whole fuse 2 have stronger tensile property, can effectively prevent the generation of the stressed phenomenon of snapping of melt 22, and because its elasticity upper conductor 21, lower wire 23 and melt 22 be all threaded connection together with, so just facilitate the melt 22 of fusing has been separated with lower wire 23 from elasticity upper conductor 21, can replace with new melt 22, allowed elasticity upper conductor 21 and lower wire 23 realize repeatedly and utilize.
Described elasticity upper conductor 21 comprises fixed block 211, constant force spring 212 is connected wire 213 with " Y " shape, described upper conductor is connected to fuse tube 3 upper contact heads by fixed block 211, described constant force spring 212 one end are fixedly connected with fixed block 211, other end turnup becomes fixed via 3112121, in described fixed via 3112121, being provided with can be at the interior fixing axis of rolling 2122 of fixed via 3112121, the described axis of rolling 2122 two ends are connected wire 213 furcated end with " Y " shape and are fixedly connected with, described " Y " shape connects wire 213 other ends and is fixedly connected with upper conduction swivel nut 4.The use of constant force spring 212 can ensure that at force-extension fuse 2 are the pulling force that can keep constant, and the pulling force that fuse 2 is subject to can be ensured in the deformation yield limit of melt 22, can effectively protect in time melt 22 in installation.
On described fuse tube 3, moving contact 31 is provided with fixed via 3112121, fixed block 211 comprises through hole fixture block 2111 and the contiguous block 2112 being fixedly connected with through hole fixture block 2111, described through hole fixture block 2111 and fixed via 3112121 interference fit, contiguous block 2112 is fixedly connected with constant force spring 212 through fixed via 3112121.In installing, need only fuse 2 is passed in fixed via 3112121, allow through hole fixture block 2111 and fixed via 3112121 clampings, so just complete the steady job of moving contact 31 on fuse 2 and fuse tube 3, greatly simplify individual work, can alleviate greatly installer's work load.
Claims (3)
1. an economizing type fuse switch, comprise insulator bracket and the fuse tube that is provided with fuse, the two ends of described insulator bracket are provided with, lower fixed contact, the two ends of described fuse tube are provided with, lower moving contact, it is characterized in that: described fuse comprises elasticity upper conductor, melt and lower wire, described elasticity upper conductor one end is fixedly connected with fuse tube upper contact head, the other end is provided with conduction swivel nut, described lower wire one end is fixedly connected with lower fixed contact through the lower moving contact of fuse tube, the lower wire other end is provided with the lower conduction swivel nut corresponding with upper conduction swivel nut, described melt two ends are provided with upper, the suitable threaded rod of lower conduction swivel nut.
2. economizing type fuse switch according to claim 1, it is characterized in that: described elasticity upper conductor comprises that fixed block, constant force spring and " Y " shape are connected wire, described upper conductor is connected to fuse tube upper contact head by fixed block, described constant force spring one end is fixedly connected with fixed block, other end turnup becomes fixed via, in described fixed via, be provided with can be fixing in fixed via the axis of rolling, described axis of rolling two ends are connected wire furcated end with " Y " shape and are fixedly connected with, and described " Y " shape connects the wire other end and is fixedly connected with upper conduction swivel nut.
3. economizing type fuse switch according to claim 2, it is characterized in that: on described fuse tube, moving contact is provided with fixed via, described fixed block comprises through hole fixture block and the contiguous block being fixedly connected with through hole fixture block, described through hole fixture block and fixed via interference fit, described contiguous block is fixedly connected with constant force spring through fixed via.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301820.XU CN203910729U (en) | 2014-06-07 | 2014-06-07 | Saving type drop-out fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420301820.XU CN203910729U (en) | 2014-06-07 | 2014-06-07 | Saving type drop-out fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203910729U true CN203910729U (en) | 2014-10-29 |
Family
ID=51784984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420301820.XU Active CN203910729U (en) | 2014-06-07 | 2014-06-07 | Saving type drop-out fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203910729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282513A (en) * | 2014-11-11 | 2015-01-14 | 国网河北饶阳县供电公司 | Drop fuse and method of replacing fuse wire of drop fuse |
-
2014
- 2014-06-07 CN CN201420301820.XU patent/CN203910729U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104282513A (en) * | 2014-11-11 | 2015-01-14 | 国网河北饶阳县供电公司 | Drop fuse and method of replacing fuse wire of drop fuse |
| CN104282513B (en) * | 2014-11-11 | 2016-04-06 | 国网河北饶阳县供电公司 | The method of fuse switch and change of fuse thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103439548B (en) | The connection box of electric energy meter post of built-in arc spring pad | |
| CN203250598U (en) | Anti-thunder tension insulator | |
| CN105514802A (en) | Two-stage series gap lightning flashover protector capable of being replaced in electrified mode | |
| CN203910729U (en) | Saving type drop-out fuse | |
| CN203707371U (en) | Ground wire hanging device suitable for shield type cable accessory | |
| CN202473441U (en) | Conducting rod assembly for voltage withstand and partial discharge of gas-insulated switch cabinet | |
| CN204464511U (en) | Quick Connect Kit | |
| CN203573757U (en) | Supporting assembly with lightning-protection function | |
| CN205609435U (en) | Insulating pull rod of vacuum circuit breaker of convenient debugging | |
| CN203218205U (en) | Novel fall-off type fuse protector fuse wire | |
| CN103077791A (en) | Metallic oxide lightning arrester with built-in insulation base | |
| CN210640070U (en) | Indoor automatic tripping lightning arrester | |
| CN210092660U (en) | Power engineering is block terminal for daily control | |
| CN203387028U (en) | Shorting device for shorting current terminal | |
| CN105788773A (en) | Insulator capable of preventing broken line of insulated overhead conductor struck by lightning | |
| CN208596656U (en) | A kind of high pressure special fuse sealing oil pressure high stability | |
| CN204516530U (en) | A kind of Novel lightning-proof protector | |
| CN203466140U (en) | Simulation fuse | |
| CN204464778U (en) | Be applicable to the high-voltage electric device of ring network power supply system | |
| CN202797629U (en) | Intelligent contact box | |
| CN103337761B (en) | For the short-circuit device of current terminal short circuit | |
| CN204117902U (en) | A kind of contact assembly tooling and comprise the contact assembly of this frock | |
| CN220041492U (en) | High-strength insulator type voltage limiter | |
| CN212010571U (en) | Combined porcelain insulator | |
| CN203351324U (en) | Energy-saving detachable zinc oxide arrester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |