CN107331554B - Interlocking device of circuit breaker mechanism and three-station mechanism - Google Patents
Interlocking device of circuit breaker mechanism and three-station mechanism Download PDFInfo
- Publication number
- CN107331554B CN107331554B CN201710624948.8A CN201710624948A CN107331554B CN 107331554 B CN107331554 B CN 107331554B CN 201710624948 A CN201710624948 A CN 201710624948A CN 107331554 B CN107331554 B CN 107331554B
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- guide plate
- hole
- plate
- circuit breaker
- central axis
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- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
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- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention provides an interlocking device of a circuit breaker mechanism and a three-station mechanism, which comprises a crank arm, a bracket plate fixed on the three-station mechanism, a first guide plate arranged on the bracket plate, a second guide plate arranged on the first guide plate, a connecting rod arranged on the first guide plate, a third guide plate connected with the connecting rod, and a lock rod arranged on the first guide plate, the second guide plate and the three guide plates; one end of the crank arm is arranged on the spline shaft of the circuit breaker, the other end of the crank arm is connected with one end of the first connecting plate, and the other end of the first connecting plate is connected with one end of the second connecting plate; when the breaker is switched on, the interlocking device can ensure the interlocking reliability and stability of the three-station mechanism so as to prevent misoperation and ensure the normal operation of the switch cabinet.
Description
Technical Field
The invention relates to the field of medium and high voltage switch cabinets, in particular to a linkage device of a circuit breaker mechanism and a three-station mechanism.
Background
Reliable linkage is needed between the circuit breaker mechanism and the three-station mechanism in the high-voltage switch, the reliability and the stability of the linkage operation of the common circuit breaker mechanism and the three-station mechanism are not very good, and the three-station mechanism is easy to generate misoperation when the circuit breaker is switched on.
Disclosure of Invention
The invention aims to provide a circuit breaker mechanism and a three-station mechanism interlocking device which can prevent the three-station mechanism from misoperation when a circuit breaker is switched on.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an interlock for a circuit breaker mechanism and a three-position mechanism, the interlock comprising:
one end of the crank arm is arranged on the spline shaft of the circuit breaker, the other end of the crank arm is connected with one end of the first connecting plate, and the other end of the first connecting plate is connected with one end of the second connecting plate;
the support plate is fixed on the three-station mechanism;
the first guide plate is arranged on the support plate and is L-shaped, a first through hole is formed in one end face of the first guide plate, and a semicircular notch is formed in the other end face of the first guide plate;
the second guide plate is arranged on one end face of the first guide plate provided with a semicircular notch, the second guide plate and one end face of the first guide plate provided with a first through hole are arranged in parallel, the second guide plate is provided with a second through hole, and the horizontal central axis of the second through hole and the horizontal central axis of the first through hole are on the same straight line;
one end of the connecting rod is arranged in the semicircular groove of the first guide plate and is connected with the other end of the second connecting plate;
the third guide plate is L-shaped, one end of the third guide plate is connected with the other end of the connecting rod, a third through hole is formed in the other end of the third guide plate, and the horizontal central axis of the third through hole, the horizontal central axis of the second through hole and the horizontal central axis of the first through hole are on the same straight line;
and one end of the lock rod penetrates through the first through hole, the second through hole and the third through hole and is finally fixed on the third guide plate, the lock rod can move left and right in the first through hole and the second through hole, and the other end of the lock rod blocks the operating cover plate of the three-station mechanism when extending out, so that the cover plate cannot be opened.
In an embodiment of the present invention, the interlocking device further includes a return compression spring, and the return compression spring is sleeved on the lock rod and is located between the first through hole and the second through hole.
Through the technical scheme, the invention has the beneficial effects that:
the invention has simple structure, convenient installation, smooth and steady operation, easy operation and maintenance and greatly improves the reliability in interlocking operation; and the misoperation of the three-station mechanism can be prevented when the breaker is switched on.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the installation of the present invention;
FIG. 2 is a top view of the present invention as installed;
FIG. 3 is a rear view of the present invention as installed;
the corresponding part names indicated by the numbers and letters in the drawings:
10. the breaker comprises a crank arm 20, a bracket plate 30, a first guide plate 31, a first through hole 40, a second guide plate 41, a second through hole 50, a connecting rod 60, a third guide plate 61, a third through hole 70, a locking rod 80, a breaker spline shaft 90, a first connecting plate 100, a second connecting plate 120, a semicircular notch 130, an operation cover plate 140 and a reset pressure spring.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1 to 3, the invention discloses an interlocking device of a circuit breaker mechanism and a three-station mechanism, the interlocking device comprises a crank arm 10, a bracket plate 20, a first guide plate 30, a second guide plate 40, a connecting rod 50, a third guide plate 60 and a lock rod 70, one end of the crank arm 10 is installed on a circuit breaker spline shaft 80, the other end of the crank arm 10 is connected with one end of a first connecting plate 90, the other end of the first connecting plate 90 is connected with one end of the second connecting plate 100, in operation, the circuit breaker spline shaft 80 is used for driving the crank arm 10 to rotate, the crank arm 10 drives the first connecting plate 90 to rotate, the first connecting plate 90 drives the second connecting plate 100 to rotate, the bracket plate 20 is fixed on the three-station connecting mechanism, the bracket plate 20 plays a role of supporting the whole interlocking device, the first guide plate 30 is installed on the bracket plate 20, the first guide plate 30 is of an L type, one end face of the first guide plate 30 is provided with a first through hole 31, the other end face of the first guide plate 30 is provided with a semicircular notch 120, the other end face of the first guide plate 30, the second guide plate 30 is provided with a semicircular notch 120, the second guide plate 30 is installed on the bracket plate 30, the second guide plate 70, the second guide plate 30, the second guide plate 70 is provided with a semicircular notch, the third guide plate 70 is installed on the third guide plate, the third guide plate 70, the third guide plate 70 is installed on the third guide plate, the third guide plate 30, the third guide plate 30 is installed on the third guide plate, the third guide plate 30.
The interlocking device further comprises a reset pressure spring 140, the reset pressure spring 140 is sleeved on the lock rod 70 and is positioned between the first through hole 31 and the second through hole 41, and the reset pressure spring 140 enables the fit clearance between the lock rod 70 and the connecting plate not to influence the accuracy of interlocking operation, so that the lock rod can be operated in place, and high reliability is achieved.
When the breaker is in operation, the breaker spline shaft 80 rotates when opening and closing, the crank arm 10 is driven to swing up and down, the crank arm 10 pushes the first connecting plate 90 to be linked with the second connecting plate 100, the second connecting plate 100 is linked with the lock rod 70 through the connecting rod 50 and the third guide plate 60, the lock rod 70 is driven to move in an extending and contracting mode, the lock rod 70 extends out, the operating cover plate 130 of the three-station mechanism is blocked, the operating cover plate 130 cannot be opened, the operating handle cannot be inserted into the three-station mechanism for operation, manual operation cannot be achieved, and the design purpose is achieved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (2)
1. An interlock device of a circuit breaker mechanism and a three-position mechanism, the interlock device comprising:
one end of the crank arm is arranged on the spline shaft of the circuit breaker, the other end of the crank arm is connected with one end of the first connecting plate, and the other end of the first connecting plate is connected with one end of the second connecting plate;
the support plate is fixed on the three-station mechanism;
the first guide plate is arranged on the support plate and is L-shaped, a first through hole is formed in one end face of the first guide plate, and a semicircular notch is formed in the other end face of the first guide plate;
the second guide plate is arranged on one end face of the first guide plate provided with a semicircular notch, the second guide plate and one end face of the first guide plate provided with a first through hole are arranged in parallel, the second guide plate is provided with a second through hole, and the horizontal central axis of the second through hole and the horizontal central axis of the first through hole are on the same straight line;
one end of the connecting rod is arranged in the semicircular groove of the first guide plate and is connected with the other end of the second connecting plate;
the third guide plate is L-shaped, one end of the third guide plate is connected with the other end of the connecting rod, a third through hole is formed in the other end of the third guide plate, and the horizontal central axis of the third through hole, the horizontal central axis of the second through hole and the horizontal central axis of the first through hole are on the same straight line;
and one end of the lock rod penetrates through the first through hole, the second through hole and the third through hole and is finally fixed on the third guide plate, the lock rod can move left and right in the first through hole and the second through hole, and the other end of the lock rod blocks the operating cover plate of the three-station mechanism when extending out, so that the cover plate cannot be opened.
2. The interlocking device of the circuit breaker mechanism and the three-station mechanism according to claim 1, further comprising a reset compression spring, wherein the reset compression spring is sleeved on the lock rod and is located between the first through hole and the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624948.8A CN107331554B (en) | 2017-07-27 | 2017-07-27 | Interlocking device of circuit breaker mechanism and three-station mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624948.8A CN107331554B (en) | 2017-07-27 | 2017-07-27 | Interlocking device of circuit breaker mechanism and three-station mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107331554A CN107331554A (en) | 2017-11-07 |
| CN107331554B true CN107331554B (en) | 2020-07-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624948.8A Active CN107331554B (en) | 2017-07-27 | 2017-07-27 | Interlocking device of circuit breaker mechanism and three-station mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107331554B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202332627U (en) * | 2011-11-08 | 2012-07-11 | 北京双杰电气股份有限公司 | Interlocking device for preventing on-load switching-on and switching-off isolation |
| CN202810416U (en) * | 2012-08-24 | 2013-03-20 | 北京双杰电气股份有限公司 | Cable and cabin door interlocking device |
| CN204088113U (en) * | 2014-07-31 | 2015-01-07 | 福建逢兴机电设备有限公司 | Closing locking device |
| CN207116270U (en) * | 2017-07-27 | 2018-03-16 | 上海纳杰电气成套有限公司 | A kind of interlock of breaker mechanism and three position mechanism |
-
2017
- 2017-07-27 CN CN201710624948.8A patent/CN107331554B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202332627U (en) * | 2011-11-08 | 2012-07-11 | 北京双杰电气股份有限公司 | Interlocking device for preventing on-load switching-on and switching-off isolation |
| CN202810416U (en) * | 2012-08-24 | 2013-03-20 | 北京双杰电气股份有限公司 | Cable and cabin door interlocking device |
| CN204088113U (en) * | 2014-07-31 | 2015-01-07 | 福建逢兴机电设备有限公司 | Closing locking device |
| CN207116270U (en) * | 2017-07-27 | 2018-03-16 | 上海纳杰电气成套有限公司 | A kind of interlock of breaker mechanism and three position mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107331554A (en) | 2017-11-07 |
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