CN201804767U - Locking device for earthing knife connection rod of isolation switch - Google Patents
Locking device for earthing knife connection rod of isolation switch Download PDFInfo
- Publication number
- CN201804767U CN201804767U CN2010205545647U CN201020554564U CN201804767U CN 201804767 U CN201804767 U CN 201804767U CN 2010205545647 U CN2010205545647 U CN 2010205545647U CN 201020554564 U CN201020554564 U CN 201020554564U CN 201804767 U CN201804767 U CN 201804767U
- Authority
- CN
- China
- Prior art keywords
- locking device
- connection rod
- earthing knife
- connecting rod
- knife connection
- 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
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Abstract
The utility model discloses a locking device for the earthing knife connection rod of the isolation switch, which comprises an earthing knife connection rod, a driving arm. A concave slot surface is provided on the lower end of the earthing knife connection rod, and a convex boss engaged with the concave slot surface is provided on the upper end of the driving arm. According to the utility model, the line contact is changed into plane contact, the contact area and the friction resistance is increased, the driving torque can be effectively transmitted, and great effect of sliding prevention is provided.
Description
Technical field
The utility model relates to the cutter connecting rod field, ground of isolating switch, specifically belongs to isolating switch ground cutter connecting rod locking device.
Background technology
Isolating switch generally refers to high voltage isolator, be that rated voltage is at 1kv and above isolating switch thereof, be to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, but because use amount is big, functional reliability requires high, and is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.The main feature of disconnecting link is no arc extinguishing ability, can only not have to divide under the situation of load current, close circuit.Wherein the locking between isolating switch ground cutter connecting rod and the actuating arm requires extremely important.
The utility model content
The purpose of this utility model provides to a kind of isolating switch ground cutter connecting rod locking device, and line contact is become the face contact, has increased contact area and frictional resistance, can more effective transferring power square, and have and well prevent sliding effect.
The technical solution of the utility model is as follows:
Isolating switch ground cutter connecting rod locking device includes ground cutter connecting rod, actuating arm, and the lower end of described ground cutter connecting rod is provided with groove surface, and the upper end of actuating arm has the boss that matches with groove surface.
Contact for face between described groove surface and the boss.
The upper end of actuating arm of the present utility model has the boss that matches with groove surface, and line contact is become the face contact, has increased contact area and frictional resistance, can more effective transferring power square, and have and well prevent sliding effect.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, isolating switch ground cutter connecting rod locking device includes ground cutter connecting rod 1, actuating arm 3, and the lower end of ground cutter connecting rod 1 is provided with groove surface 2, and the upper end of actuating arm 3 has the boss 4 that matches with groove surface, contacts for face between groove surface 2 and the boss 4.
Claims (2)
1. isolating switch ground cutter connecting rod locking device includes ground cutter connecting rod, actuating arm, and it is characterized in that: the lower end of described ground cutter connecting rod is provided with groove surface, and the upper end of actuating arm has the boss that matches with groove surface.
2. according to the described isolating switch of claim 1 ground cutter connecting rod locking device, it is characterized in that: contact for face between described groove surface and the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205545647U CN201804767U (en) | 2010-09-30 | 2010-09-30 | Locking device for earthing knife connection rod of isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205545647U CN201804767U (en) | 2010-09-30 | 2010-09-30 | Locking device for earthing knife connection rod of isolation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804767U true CN201804767U (en) | 2011-04-20 |
Family
ID=43874271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205545647U Expired - Fee Related CN201804767U (en) | 2010-09-30 | 2010-09-30 | Locking device for earthing knife connection rod of isolation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804767U (en) |
-
2010
- 2010-09-30 CN CN2010205545647U patent/CN201804767U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130930 |