CN202839497U - Breaker opening button locking device - Google Patents
Breaker opening button locking device Download PDFInfo
- Publication number
- CN202839497U CN202839497U CN201220461184.8U CN201220461184U CN202839497U CN 202839497 U CN202839497 U CN 202839497U CN 201220461184 U CN201220461184 U CN 201220461184U CN 202839497 U CN202839497 U CN 202839497U
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- lever
- fixed
- locking device
- support
- button locking
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- Expired - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a breaker opening button locking device, comprising a fixing plate, a lever, an eccentric cam, a program lock, a support, and a roller. The breaker opening button locking device is characterized in that the eccentric cam is mounted on one end of the program lock and fixed on the support through a square nut; the support is fixed on the fixing plate through screws; the lever is additionally provided with a gasket and fixed on a pin shaft of the fixing plate through a cotter pin; and the roller is sleeved and mounted onto a riveting shaft at one end of the lever and is additionally provided with another gasket and fixed through another cotter pin. The breaker opening button locking device is simple in structure, convenient in operation, and widely applicable to interlocking operations of a plurality of breakers.
Description
Technical field
The utility model relates to a kind of opening button locking device of circuit breaker, belongs to low-voltage electrical apparatus manufacturing technology field.
Background technology
At present, in the electric power system with power supply commonly used (electrical network) and stand-by power supply (electrical network or generator), must possess interlock between two or three circuit breakers, to guarantee Circuits System power supply reliability and fail safe.This interlock is normally realized by mechanical interlocking or open position key lock, but mechanical interlocks has certain requirement to installation site and spacing distance, can't realize the Circuits System interlock by this mechanism for remote circuit breaker.Though and the open position key lock is suitable for remote operation, its version is more single, and some specification circuit breaker and inapplicable this mode realize interlock.Therefore, for some specification circuit breaker, and be not suitable in the electric power system with power supply commonly used (electrical network) and stand-by power supply (electrical network or generator).
The utility model content
In view of above-mentioned existing problem, the purpose of this utility model provides a kind of breaker open operation button locking device simple in structure, easy and simple to handle, substitutes open position key lock function, to increase the industry Selective type.
For achieving the above object, the utility model has been taked following technical scheme.
A kind of breaker open operation button locking device described in the utility model includes fixed head, lever, eccentric cam, procedure lock, support and roller, it is characterized in that eccentric cam is installed on procedure lock one end, and is fixed on the support with square nut; Support is fixed on the fixed head by screw; Lever installs packing ring additional, is fixed on split pin on the bearing pin of fixed head; Roller housing is loaded on the riveting axle of lever one end, and installs packing ring additional, fixes with split pin; The other end at lever is provided with spring, and the other end of spring is linked up with in the hole of fixed head.
Described spring is extension spring or stage clip.
The utility model operation sequence lock, make the eccentric cam rotation, drive lever motion by roller, because breaker open operation button connecting rod locking plate is positioned on the movement locus of lever, when lever snaps in " U " type groove of opening button connecting rod locking plate, just with the opening button locking, can guarantee that thus circuit breaker can't normally close a floodgate.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is the utility model schematic diagram when the breaker open operation button not being locked
Fig. 3 is the utility model schematic diagram when the breaker open operation button is locked
Wherein: 1-fixed head 2-lever 3-packing ring 4-spring 5-eccentric cam 6-screw 7-square nut 8-procedure lock 9-support 10-split pin 11-roller 12-breaker mechanism 13-opening button 14-screw rod 15-crossbeam
Embodiment
Below in conjunction with accompanying drawing, specific embodiments of the present utility model is further described in detail, but is not restriction to the utility model protection range.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of breaker open operation button locking device described in the utility model, include fixed head 1, lever 2, eccentric cam 5, procedure lock 8, support 9, split pin 10 and roller 11, it is characterized in that eccentric cam 5 is installed on procedure lock 8 one ends, and be fixed on the support 9 with square nut 7; Support 9 is fixed on the fixed head 1 by screw 6; Lever 2 installs packing ring 3 additional, is fixed on split pin 10 on the bearing pin of fixed head 1; Roller 11 is set on the riveting axle of lever 2 one ends, and installs packing ring 3 additional, and is fixing with split pin 10; At the other end of lever 2, be provided with spring 4, the other end of spring 4 is linked up with in the hole of fixed head.
Working method of the present utility model is achieved like this:
Breaker mechanism 12 usefulness screw rods 14 are fixed on the crossbeam 15, and this breaker open operation button locking device is anchored on the crossbeam 15 by screw 6.When breaker open operation button 13 is in unlocked position, as shown in Figure 2, the projection position of eccentric cam 5 upwards, lever 2 is because the restoring force of spring 4, be in upwards offset position, do not block the movement locus of breaker open operation button connecting rod locking plate 16, circuit breaker can normally carry out the on/off switch operation.Breaker open operation button 13 is down pressed, its connecting rod locking plate 16 will be by the groove of fixed head 1, when being rotated counterclockwise the key of procedure lock 8, eccentric cam 5 will be by being rotated counterclockwise, and the cam projection drives lever 2 motions by contact roller 11, and lever 2 ends snap in " U " type groove of opening button connecting rod locking plate 16, be about to opening button 13 lockings, at this moment, circuit breaker can't normally carry out closing operation, as shown in Figure 3.
The utility model is simple in structure, easy and simple to handle, can be widely used in the interlocked operation of many circuit breakers.
Claims (2)
1. a breaker open operation button locking device includes fixed head, lever, eccentric cam, procedure lock, support and roller, it is characterized in that eccentric cam is installed on procedure lock one end, and is fixed on the support with square nut; Support is fixed on the fixed head by screw; Lever installs packing ring additional, is fixed on split pin on the bearing pin of fixed head; Roller housing is loaded on the riveting axle of lever one end, and installs packing ring additional, fixes with split pin; The other end at lever is provided with spring, and the other end of spring is linked up with in the hole of fixed head.
2. a kind of breaker open operation button locking device according to claim 1 is characterized in that described spring is extension spring or stage clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220461184.8U CN202839497U (en) | 2012-09-11 | 2012-09-11 | Breaker opening button locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220461184.8U CN202839497U (en) | 2012-09-11 | 2012-09-11 | Breaker opening button locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839497U true CN202839497U (en) | 2013-03-27 |
Family
ID=47951141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220461184.8U Expired - Lifetime CN202839497U (en) | 2012-09-11 | 2012-09-11 | Breaker opening button locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681130A (en) * | 2012-09-11 | 2014-03-26 | 杭州之江开关股份有限公司 | Circuit breaker opening button locking device |
-
2012
- 2012-09-11 CN CN201220461184.8U patent/CN202839497U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681130A (en) * | 2012-09-11 | 2014-03-26 | 杭州之江开关股份有限公司 | Circuit breaker opening button locking device |
| CN103681130B (en) * | 2012-09-11 | 2016-08-17 | 杭州之江开关股份有限公司 | A kind of breaker open operation button locking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |