CN202423196U - Drop fuse - Google Patents
Drop fuse Download PDFInfo
- Publication number
- CN202423196U CN202423196U CN2011205193021U CN201120519302U CN202423196U CN 202423196 U CN202423196 U CN 202423196U CN 2011205193021 U CN2011205193021 U CN 2011205193021U CN 201120519302 U CN201120519302 U CN 201120519302U CN 202423196 U CN202423196 U CN 202423196U
- Authority
- CN
- China
- Prior art keywords
- fuse
- drop
- drop fuse
- electrical contact
- stay cord
- 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
Images
Landscapes
- Fuses (AREA)
Abstract
The utility model discloses a drop fuse, which comprises an insulated sleeve. A conductive connector is arranged at the lower end of the drop fuse, an electrical contact and an elastic tensioning part are arranged at the upper end of the drop fuse, and a fuse wire and a low-fusing-point pull cord are parallelly connected between the conductive connector and the electrical contact. The drop fuse can effectively avoid natural disconnection during installing, and when current load is overloaded, the fuse wire emitting heat leads the pull cord to be fused firstly, so that usability of the drop fuse is guaranteed. The drop fuse has the advantages of simple structure, convenience and quickness in installation and use, simplicity, convenience, practicality and the like.
Description
Technical field
The utility model belongs to transmission facility auxiliary technical field, particularly a kind of fall insurance.
Background technology
The fall insurance that electric power system is at present used; Usually form by insulating sleeve and the fusing type fuse that is contained in the sleeve pipe; The two ends up and down of fuse are connected with the hinged fixed contact of insurance support with moving contact through lead respectively, and are provided with elastic tension spare at lead and moving contact connecting portion.This insurance in use; Normally with being pushed into make position on the free end of insulating bar with insurance, when the electric line excess load, resistance wire generates heat and fuses; And under the elastic force effect of elastic tension spare, cut off circuit rapidly, reach the purpose of safe power transmission and distribution.But this structure is often artificially broken off in the operation closing course because the elastic force of elastic tension spare is excessive, and the tensile strength of fuse is less in addition, causes circuit to be connected and loses efficacy.At this moment, then need operating personnel to climb to exceeding, fall insurance is taken apart, operation is closed again behind the replacing fuse, needs repeatable operation sometimes repeatedly.Like this, not only increased the fuse consumption, and made the mistake easily and open circuit.Cause assembling back fuse to be in tensioning state all the time, when making free end closed with action bars promotion operation, the easy automatic disconnection of fuse; Causing circuit to be connected lost efficacy; Reinstall fuse after must retracting, not only increased the fuse consumption, and make the mistake easily and open circuit.
The utility model content
The purpose of the utility model is to provide a kind of slippage that can avoid lead wire and earth wire and optical cable effectively, improves operating efficiency, ensures the fall insurance of job safety.
The technical scheme that purpose adopted that realizes the utility model is: a kind of fall insurance; Has an insulating sleeve; Its lower end is provided with conducting connecting part, and the upper end is provided with and connects electrical contact and elastic tension spare, conducting connecting part and connect between the electrical contact parallel be connected with fuse and low melting point stay cord.
Said low melting point stay cord adopts nylon rope.
The fall insurance of the utility model through the setting of low melting point stay cord, can be avoided opening circuit naturally in the installation process effectively, simultaneously, when current capacity transships, because the fuse heating makes stay cord fusing in advance, thereby has guaranteed the serviceability of fall insurance.Advantages such as and this scheme has simple in structure, and is easy to install quick, simple and practical.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to Fig. 1, the fall insurance of the utility model has an insulating sleeve 1; Its lower end is provided with conducting connecting part 6, and the upper end is provided with and connects electrical contact 3 and elastic tension spare 2, and its main feature is at conducting connecting part 6 and connects parallel fuse 4 and the low melting point stay cord 5 of being connected with between the electrical contact 3; Said low melting point stay cord 5 adopts nylon rope, has stronger tensile strength at low-temperature condition, can protect fuse 4 not broken by the tension force of elastic tension spare; Again can be in the circuit excess load, fuse 4 heating fusing.Like this, this fall insurance can be avoided opening circuit naturally in the installation process effectively, simultaneously, when current capacity transships, because fuse 4 heatings make low melting point stay cord 5 fusing in advance, thereby has guaranteed the serviceability of fall insurance.
Claims (2)
1. fall insurance, it is characterized in that: it has an insulating sleeve, and its lower end is provided with conducting connecting part, and the upper end is provided with and connects electrical contact and elastic tension spare, conducting connecting part and connect parallel fuse and the low melting point stay cord of being connected with between the electrical contact.
2. fall insurance as claimed in claim 1 is characterized in that: said low melting point stay cord adopts nylon rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205193021U CN202423196U (en) | 2011-12-13 | 2011-12-13 | Drop fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205193021U CN202423196U (en) | 2011-12-13 | 2011-12-13 | Drop fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423196U true CN202423196U (en) | 2012-09-05 |
Family
ID=46747931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205193021U Expired - Fee Related CN202423196U (en) | 2011-12-13 | 2011-12-13 | Drop fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021757A (en) * | 2012-12-06 | 2013-04-03 | 四川电力科学研究院 | Falling securing structure |
| CN109192564A (en) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | Strip-like non-excitation tapping switch and transformer |
-
2011
- 2011-12-13 CN CN2011205193021U patent/CN202423196U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021757A (en) * | 2012-12-06 | 2013-04-03 | 四川电力科学研究院 | Falling securing structure |
| CN103021757B (en) * | 2012-12-06 | 2015-09-02 | 国网四川省电力公司电力科学研究院 | Fall insurance structure |
| CN109192564A (en) * | 2018-11-14 | 2019-01-11 | 山东电工电气集团智能电气有限公司 | Strip-like non-excitation tapping switch and transformer |
| CN109192564B (en) * | 2018-11-14 | 2024-04-30 | 山东电工电气集团智能电气有限公司 | Strip-shaped non-excitation tapping switch and transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202423196U (en) | Drop fuse | |
| CN101533974A (en) | Terminal block | |
| CN202332338U (en) | Deicing transmission cable | |
| CN205159908U (en) | Backup protection fixing -line device | |
| CN103985982A (en) | Crimping wiring terminal | |
| CN202034330U (en) | Bypass fuse | |
| CN204538587U (en) | Flexible cable fast-wiring head | |
| CN202856290U (en) | Line automatic deicing device | |
| CN204905802U (en) | Cable connection structure that can set up in open | |
| CN201369465Y (en) | Connecting terminal block | |
| CN103594880A (en) | Socket | |
| CN203839895U (en) | Automatic control anti-freezing power transmission line | |
| CN204167518U (en) | Big current wire connecting elements | |
| CN203434310U (en) | Low-voltage grounding wire operating lever | |
| CN203387028U (en) | Shorting device for shorting current terminal | |
| CN202935292U (en) | Electromobile voltage sampling wire harness | |
| CN105895393A (en) | Isolation switch accessory capable of tensioning relative to contact finger and preventing electrical conduction | |
| CN201853818U (en) | Electric wire connector | |
| CN201422170Y (en) | Transmission line being wound with electric heating wire | |
| CN204886066U (en) | Prevent short circuit terminal box | |
| CN202906164U (en) | Electric transmission line earth wire device | |
| CN202333266U (en) | Compact wiring terminal strip | |
| CN203932806U (en) | Conductor cord disconnection fixture | |
| CN203826582U (en) | Pressure welding binding post | |
| CN203351799U (en) | Soft circular copper braided wire with novel connection mechanism |
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: 20120905 Termination date: 20141213 |
|
| EXPY | Termination of patent right or utility model |