CN202601541U - Brake pull-rod for high-voltage drop type fuse - Google Patents
Brake pull-rod for high-voltage drop type fuse Download PDFInfo
- Publication number
- CN202601541U CN202601541U CN 201220176645 CN201220176645U CN202601541U CN 202601541 U CN202601541 U CN 202601541U CN 201220176645 CN201220176645 CN 201220176645 CN 201220176645 U CN201220176645 U CN 201220176645U CN 202601541 U CN202601541 U CN 202601541U
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- Prior art keywords
- rod
- voltage drop
- arc
- brake pull
- pressure pin
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- Expired - Fee Related
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- 230000008033 biological extinction Effects 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model relates to a brake pull-rod for a high-voltage drop type fuse. The brake pull-rod comprises an insulated operating lever and a T-shaped support column positioned at the top of the insulated operating lever, wherein the T-shaped support column comprises a central support column and a horizontal support rod, a lower arc-shaped support rod is also fixedly connected to the end part of the horizontal support rod, and an arc-shaped structure of the lower arc-shaped support rod corresponds to an arc-shaped structure of an arc extinction pipe in the high-voltage drop type fuse; and a support column clamp which corresponds to an arc-surface notch of the arc extinction pipe is also arranged at the end part of the lower arc-shaped support rod. The brake pull-rod disclosed by the utility model is simple in structure and convenient to operate and greatly improves the working efficiency of workers on the basis of ensuring the safety performance of a working environment.
Description
Technical field
The utility model relates to a kind of auxiliary equipment in the electric power system, particularly a kind of brake pull-rod of the high voltage drop-out type fuse cutout expulsion tube that is used to set out.
Background technology
High voltage drop-out type fuse cutout is a kind of outdoor high-voltage protection electrical equipment, is assemblied in usually on distribution transformer high-pressure side or the distribution wire service main road, uses as transmission line, power transformer overload and short-circuit protection and deciliter rated load electric current.High voltage drop-out type fuse cutout is made up of insulating support and cartridge fuse two large divisions, and fixed contact is installed in the two ends of insulating support, and moving contact is installed in the two ends of cartridge fuse, and cartridge fuse is made up of the expulsion tube and the outer field expoxy glass pipe of internal layer.During normal operation, cartridge fuse forms closure state after by the fuse tensioning, when system breaks down; Fault current is the fuse quick-break, the moving contact that is positioned at the cartridge fuse bottom lose tension force and under turn over, retaining mechanism discharges cartridge fuse; Cartridge fuse falls, and forms tangible off state.If but under normal operating condition, the cartridge fuse that needs the dislodging high voltage drop-out type fuse cutout then must be used brake pull-rod during with deciliter load current.Brake pull-rod is the higher auxiliary equipment of a kind of dielectric strength, and brake pull-rod generally comprises action bars and the T-shaped pillar that is positioned at the action bars top, and the T-shaped pillar comprises centre strut and horizontal pressure pin again.When brake pull-rod uses, in centre strut insertion expulsion tube moving thirty of the arc surface breach with the T-shaped pillar, the operation of just seting out.Because the general installation site of high voltage drop-out type fuse cutout is higher, the operator generally stands on the ground during the dislodging cartridge fuse, therefore adopts this kind operating type, and operation easier is big, poor accuracy, also needs multi-pass operation to accomplish sometimes; In addition, the accident of expulsion tube landing in operating process, also occurs, not only can break equipment, cause the damage of high voltage drop-out type fuse cutout, but also can threaten operating personnel and pedestrian through regular meeting.
The utility model content
The technical problem that the utility model will solve provides a kind of brake pull-rod simple to operate, safe and convenient to use, can increase work efficiency greatly.
For solving the problems of the technologies described above, the technical scheme that the utility model is taked is following.
The brake pull-rod that is used for high voltage drop-out type fuse cutout; The T-shaped pillar that comprises insulating bar and be positioned at the insulating bar top; Said T-shaped pillar comprises centre strut and horizontal pressure pin; The end of said horizontal pressure pin also is fixedly connected with the arc lower pressure pin, and the globoidal structure of expulsion tube is corresponding in the arcuate structure of arc lower pressure pin and the high voltage drop-out type fuse cutout; The end of said arc lower pressure pin also is provided with and the corresponding pillar card of expulsion tube cambered surface breach.
Owing to adopted technique scheme, the technological progress that the utility model is obtained is following.
The utility model will be positioned at the horizontal pressure pin lengthening of the T-shaped pillar at action bars top; And prolongation processed the arcuate structure that the cambered surface with expulsion tube matches; Enable steadily to hold expulsion tube; And expulsion tube is stabilized between the pillar card and T-shaped pillar of arc lower pressure pin end, can prevent effectively that expulsion tube from coming off, and increased the security performance of the utility model.Do not receive the influence of high voltage drop-out type fuse cutout fixed point supported on both sides thing during the utility model operation; Therefore operation is very smooth; Can successfully accomplish the drawing operation of high-voltage drop type circuit breaker; Improved practicality of the utility model and operating personnel's operating efficiency greatly, but wide popularization and application.
Description of drawings
Fig. 1: the structural representation of the utility model.
Wherein: 1. insulating bar, 2. centre strut, 3. horizontal pressure pin, 4. arc lower pressure pin, 5. pillar card.
Embodiment
To combine accompanying drawing that the utility model is done further explain below.
A kind of brake pull-rod that is used for high voltage drop-out type fuse cutout, as shown in Figure 1.Mainly comprise insulating bar 1 and T-shaped pillar, the T-shaped pillar is positioned at the top of insulating bar.The T-shaped pillar comprises centre strut 2 and horizontal pressure pin 3; The end of horizontal pressure pin 3 is fixedly connected with arc lower pressure pin 4; The arcuate structure of arc lower pressure pin is corresponding with the globoidal structure of expulsion tube, and the end of arc lower pressure pin is provided with and the corresponding pillar card 5 of expulsion tube cambered surface breach.
When high voltage drop-out type fuse cutout breaks down or need take because of maintenance; Make the arc lower pressure pin hold expulsion tube; This moment, the pillar card of arc lower pressure pin end just in time snapped in expulsion tube moving thirty of the arc surface breach; Upwards promote insulating bar again, can carry out the drawing operation to expulsion tube easily.
Claims (1)
1. the brake pull-rod that is used for high voltage drop-out type fuse cutout; Comprise insulating bar (1) and the T-shaped pillar that is positioned at the insulating bar top; Said T-shaped pillar comprises centre strut (2) and horizontal pressure pin (3); It is characterized in that: the end of said horizontal pressure pin (3) also is fixedly connected with arc lower pressure pin (4), and the globoidal structure of expulsion tube is corresponding in the arcuate structure of arc lower pressure pin and the high voltage drop-out type fuse cutout; The end of said arc lower pressure pin also is provided with and the corresponding pillar card of expulsion tube cambered surface breach (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220176645 CN202601541U (en) | 2012-04-24 | 2012-04-24 | Brake pull-rod for high-voltage drop type fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220176645 CN202601541U (en) | 2012-04-24 | 2012-04-24 | Brake pull-rod for high-voltage drop type fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601541U true CN202601541U (en) | 2012-12-12 |
Family
ID=47319071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220176645 Expired - Fee Related CN202601541U (en) | 2012-04-24 | 2012-04-24 | Brake pull-rod for high-voltage drop type fuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617898A (en) * | 2013-10-30 | 2014-03-05 | 合保电气（芜湖）有限公司 | An isolating rod |
-
2012
- 2012-04-24 CN CN 201220176645 patent/CN202601541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103617898A (en) * | 2013-10-30 | 2014-03-05 | 合保电气（芜湖）有限公司 | An isolating rod |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20190424 |