CN203250676U - Detachable low-voltage knife switch - Google Patents
Detachable low-voltage knife switch Download PDFInfo
- Publication number
- CN203250676U CN203250676U CN 201320295345 CN201320295345U CN203250676U CN 203250676 U CN203250676 U CN 203250676U CN 201320295345 CN201320295345 CN 201320295345 CN 201320295345 U CN201320295345 U CN 201320295345U CN 203250676 U CN203250676 U CN 203250676U
- Authority
- CN
- China
- Prior art keywords
- knife switch
- blade
- low voltage
- detachable low
- voltage knife
- 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
- 239000012212 insulator Substances 0.000 claims abstract description 18
- 239000004677 Nylon Substances 0.000 claims abstract description 8
- 229920001778 nylon Polymers 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 2
- 229920002379 silicone rubber Polymers 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
Images
Abstract
The utility model discloses a detachable low-voltage knife switch comprising a base of the knife switch, insulators, a moving contact and fixed contacts. Two insulators are respectively arranged on the two ends of the base of the knife switch, the fixed contacts are respectively fixed on the two insulators, a locating shaft is arranged on one of the fixed contacts, and the locating shaft is in hanging connection with the moving contact. According to the detachable low-voltage knife switch, it is easy and quick for operation staff to operate with an insulating pull rod on the ground instead of in high place when changing low-voltage fuses, and after a fault phase is found, what is needed is the power cut of the fault phase instead of three phases, thereby reducing the power cut ranges. The insulators are made of silicone rubber outside and nylon insulation bar inside so that the service lifetime of the knife switch is extended, and the integration of a blade and fuses achieves simple operation and time saving.
Description
Technical field
The utility model relates to a kind of power equipment, particularly a kind of detachable low voltage knife switch.
Background technology
Change at present the insurance of low voltage knife switch fuse piece, need distribution transformer is stopped using, and after high and low pressure side arranges safety measure, finish after climbing up the distribution transformer stand.Because operating procedure is complicated, and is consuming time longer, and for work high above the ground, has the operating risk potential safety hazard, affect simultaneously breakdown repair speed.
The utility model content
In view of this, the purpose of this utility model provides a kind of quick detachable, efficient low voltage knife switch device.
The purpose of this utility model is achieved through the following technical solutions:
Detachable low voltage knife switch, comprise switch base, insulator, moving contact and fixed contact, an insulator is fixed respectively at the two ends of switch base, fixes respectively a fixed contact on the insulator, wherein be provided with locating shaft on the fixed contact, described locating shaft and moving contact activity are hooked together.
Further, described moving contact comprises two blade, insulating gap bridge plate, safety plate and wins parts, two blade are fixed on the two ends of insulating gap bridge plate, the safety plate two ends are connected with two blades of insulating gap bridge plate homonymy, winning parts is connected with a blade wherein, another blade two outsides are symmetrically arranged with the disconnecting link coupling hook, and described disconnecting link coupling hook and locating shaft activity articulate.
Further, the outside of described two blade all is provided with spring, and bolt passes spring every blade is linked together.
Further, the inboard of described every blade is provided with and the close-connected concavo-convex contact point of fixed contact.
Further, can win sleeve pipe with being provided with on the blade that the disconnecting link coupling hook is connected, describedly win sleeve pipe and win the both sides that parts are positioned at the insulating gap bridge plate.
Further, described insulator comprises insulated nylon rod and the silastic-layer that is enclosed within the insulated nylon rod.
Further, described insulating gap bridge plate is made by epoxy glass cloth laminated board.
The beneficial effects of the utility model are:
1, detachable low voltage knife switch can make operating personnel when changing the low pressure insurance without ascend operation, get final product with the insulated tension pole operation on ground, convenient and swift, and after finding out fault phase, without the three-phase power failure, can only stop fault phase, reduced power failure range.
2, utilize the blade insurance to be integrated, simple to operate, save time.
Description of drawings
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
The detachable low voltage knife switch schematic diagram of Fig. 1;
Fig. 2 is the structure chart of safety plate.
Reference numeral among the figure: 1, switch base 2, insulator 3, fixed contact 4, locating shaft 5, disconnecting link coupling hook 6, blade 7, can win sleeve pipe 8, insulating gap bridge plate 9, win parts 10, concavo-convex contact point 11, spring 12, safety plate
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in the figure, detachable low voltage knife switch, comprise switch base 1, insulator 2, moving contact and fixed contact 3, an insulator 2 is fixed respectively at the two ends of switch base 1, fix respectively a fixed contact 3 on the insulator 2, wherein be provided with locating shaft 4 on the fixed contact 3, described locating shaft 4 is hooked together with the moving contact activity.
Described moving contact comprises two blade 6, insulating gap bridge plate 8, safety plate 12 and wins parts 9, two blade 6 are fixed on the two ends of insulating gap bridge plate 8, safety plate 12 two ends are connected with two blades 6 of insulating gap bridge plate 8 homonymies, winning parts 9 is connected with a blade 6 wherein, 6 liang of outsides of another blade are symmetrically arranged with disconnecting link coupling hook 5, and described disconnecting link coupling hook 5 articulates with locating shaft 4 activities.Win parts 9 and can be ring-type, also can be oblong-shaped.On rectangular both sides one arc port is set respectively, the diameter of this arc port is greater than the diameter of the T shape operating head of insulating bar.
As the improvement to present embodiment, the outside of described two blade 6 all is provided with spring 11, and bolt passes spring 11 every blade 6 is linked together.By the cooperation of spring 11 and bolt, can regulate the spacing of every blade 6, make blade 6 contact closelyr with fixed contact 3.
As the improvement to present embodiment, the inboard of described every blade 6 is provided with and fixed contact 3 close-connected concavo-convex contact points 10.Concavo-convex contact point 10 can increase the contact area of blade 6 and fixed contact 3, so that disconnecting link work is more reliable.
As the improvement to present embodiment, can win sleeve pipe 7 with being provided with on the blade 6 that disconnecting link coupling hook 5 is connected, describedly win sleeve pipe 7 and win the both sides that parts 9 are positioned at insulating gap bridge plate 8.Can win sleeve pipe 7 can be easily 5 takes off disconnecting link coupling hook 5 from the locating shaft.
As the improvement to present embodiment, insulator 2 comprises insulated nylon rod and the silastic-layer that is enclosed within the insulated nylon rod, and the insulated nylon rod approaches with the silicon rubber coefficient of expansion, and the insulator of avoiding the violent lifting of temperature to cause is cracked.
As the improvement to present embodiment, insulating gap bridge plate 8 is made by epoxy glass cloth laminated board, and epoxy glass cloth laminated board satisfies intensity, insulation and heat-resisting requirement.
The utility model make operating personnel when changing the low pressure insurance without ascend operation, get final product with the insulated tension pole operation on ground, convenient and swift, and after finding out fault phase, without the three-phase power failure, can only stop fault phase, reduced power failure range.
What illustrate most is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (7)
1. detachable low voltage knife switch, comprise switch base, insulator, moving contact and fixed contact, an insulator is fixed respectively at the two ends of switch base, fix respectively a fixed contact on the insulator, it is characterized in that: wherein be provided with locating shaft on the fixed contact, described locating shaft and moving contact activity are hooked together.
2. described detachable low voltage knife switch according to claim 1, it is characterized in that: described moving contact comprises two blade, insulating gap bridge plate, safety plate and wins parts, two blade are fixed on the two ends of insulating gap bridge plate, the safety plate two ends are connected with two blades of insulating gap bridge plate homonymy, winning parts is connected with a blade wherein, another blade two outsides are symmetrically arranged with the disconnecting link coupling hook, and described disconnecting link coupling hook and locating shaft activity are hooked together.
3. described detachable low voltage knife switch according to claim 2, it is characterized in that: the outside of described two blade all is provided with spring, and bolt passes spring every blade is linked together.
4. described detachable low voltage knife switch according to claim 2, it is characterized in that: the inboard of described every blade is provided with and the close-connected concavo-convex contact point of fixed contact.
5. described detachable low voltage knife switch according to claim 1 is characterized in that: can win sleeve pipe with being provided with on the blade that the disconnecting link coupling hook is connected, describedly win sleeve pipe and win the both sides that parts are positioned at the insulating gap bridge plate.
6. described detachable low voltage knife switch according to claim 1, it is characterized in that: described insulator comprises the insulated nylon rod and is enclosed within the silastic-layer of insulated nylon rod.
7. described detachable low voltage knife switch according to claim 1, it is characterized in that: described insulating gap bridge plate is made by epoxy glass cloth laminated board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320295345 CN203250676U (en) | 2013-05-27 | 2013-05-27 | Detachable low-voltage knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320295345 CN203250676U (en) | 2013-05-27 | 2013-05-27 | Detachable low-voltage knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203250676U true CN203250676U (en) | 2013-10-23 |
Family
ID=49377100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320295345 Expired - Fee Related CN203250676U (en) | 2013-05-27 | 2013-05-27 | Detachable low-voltage knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203250676U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289183A (en) * | 2019-07-02 | 2019-09-27 | 浙江永贵电器股份有限公司 | A kind of quick-release gear and switching device |
| CN113539713A (en) * | 2021-06-11 | 2021-10-22 | 华能伊敏煤电有限责任公司 | Improvement method based on excitation knife switch overheating or high-power knife switch overheating |
-
2013
- 2013-05-27 CN CN 201320295345 patent/CN203250676U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110289183A (en) * | 2019-07-02 | 2019-09-27 | 浙江永贵电器股份有限公司 | A kind of quick-release gear and switching device |
| CN110289183B (en) * | 2019-07-02 | 2024-02-27 | 浙江永贵电器股份有限公司 | Instantaneous separating mechanism and switching device |
| CN113539713A (en) * | 2021-06-11 | 2021-10-22 | 华能伊敏煤电有限责任公司 | Improvement method based on excitation knife switch overheating or high-power knife switch overheating |
| CN113539713B (en) * | 2021-06-11 | 2023-07-07 | 华能伊敏煤电有限责任公司 | Method for improving overheat of exciting knife switch or high-power knife switch |
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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: 20131023 Termination date: 20170527 |