CN210607086U - Outdoor high-voltage vacuum circuit breaker - Google Patents
Outdoor high-voltage vacuum circuit breaker Download PDFInfo
- Publication number
- CN210607086U CN210607086U CN201921689793.7U CN201921689793U CN210607086U CN 210607086 U CN210607086 U CN 210607086U CN 201921689793 U CN201921689793 U CN 201921689793U CN 210607086 U CN210607086 U CN 210607086U
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- Prior art keywords
- circuit breaker
- vacuum circuit
- support
- fixed block
- pivot
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- 238000002955 isolation Methods 0.000 claims abstract description 19
- 238000005096 rolling process Methods 0.000 claims abstract description 17
- 239000012212 insulator Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
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Abstract
The utility model relates to an outdoor high-pressure vacuum circuit breaker, it includes vacuum circuit breaker, one side of vacuum circuit breaker is equipped with isolator, the bearing is rotatable to be installed in the support at isolator's the both ends of pivot, just the one end of pivot is extended the support to there is the handle at this end fixed mounting, still be equipped with self-lock device between casing and the handle, self-lock device includes fixed block, rolling disc, fore-set and spring. The utility model discloses set up between isolator's pivot and the shell self-lock device, exert locking holding power of fixed mounting in the epaxial rolling disc of commentaries on classics through spring and fore-set, make the pivot need just can rotate under the certain pulling force in the external world, avoided because the isolation switch that the accident caused falls back the problem of combined floodgate when separating brake, make no matter keep apart the switch-blade at the separating brake or the in-process of combined floodgate have a locking holding power all the time and guarantee the holding state of keeping apart the switch-blade.
Description
Technical Field
The utility model relates to a distribution equipment technical field especially relates to an outdoor high-voltage vacuum circuit breaker.
Background
The high-voltage vacuum circuit breaker is the most important and most critical control and protection equipment in the power system, and the main functions of the high-voltage vacuum circuit breaker are as follows: according to the operation requirement of the power grid, a part of power equipment or lines is put into or taken out of operation, and when the power line or equipment has a fault, the fault part is quickly cut off from the power grid, so that the normal operation of the fault-free part in the power grid is ensured.
At present, an outdoor high-voltage vacuum circuit breaker is additionally provided with an isolating switch, and a pull rod can be driven by a rotating shaft of the isolating switch to control the opening and closing of an isolating switch;
in addition, the existing isolating switches are all installed on the outgoing line side (high-voltage output end), and have the following defects:
1. the isolation disconnecting link is electrically connected with an outlet contact on a current transformer connected with the vacuum circuit breaker, and no matter the vacuum circuit breaker and the isolation switch are in an opening state or a closing state, an inlet wire end of the vacuum circuit breaker is always electrified, so that the vacuum circuit breaker is not beneficial to overhaul and maintenance;
2. the isolation switch is adjacent to the current transformer, so that the installation wiring and the daily maintenance of the current transformer can be interfered, and the overhauling difficulty of the current transformer is increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides an isolator has self-locking function, isolator and the reasonable outdoor high-voltage vacuum circuit breaker of vacuum circuit breaker installation.
The utility model provides a technical scheme that its technical problem adopted is: outdoor high-voltage vacuum circuit breaker includes vacuum circuit breaker, one side of vacuum circuit breaker is equipped with isolator, isolator includes support, insulating pull rod, pillar insulator, isolation switch, pivot and rocking arm, support fixed mounting is in one side of vacuum circuit breaker, pillar insulator installs in the support, the one end of isolating switch articulates in vacuum circuit breaker's insulating pillar, the other end with pillar insulator electricity is connected, the pivot is rotatable install in the support, the rocking arm is fixed in the pivot, the other end of pivot is articulated with the one end of insulating pull rod, the other end of insulating pull rod is articulated with isolation switch, its characterized in that: the two ends of the rotating shaft are rotatably arranged on the support through bearings, one end of the rotating shaft extends out of the support, a handle is fixedly arranged at the end of the rotating shaft, and a self-locking device is further arranged between the support and the handle.
The utility model provides an in an outdoor high-voltage vacuum circuit breaker's a preferred embodiment, self-lock device includes fixed block, rolling disc, fore-set and spring, rolling disc fixed mounting in the pivot, the fixed block is relative rolling disc fixed mounting in the support, the rolling disc is relative one side periphery equipartition of fixed block has a plurality of sphere type shrinkage pools that set up with one heart, the fixed block lies in same circumference department of shrinkage pool is equipped with the counter bore, in the counter bore was located to the one end of fore-set, the other end of fore-set was established to the spherical face with shrinkage pool assorted, the one end of spring is connected the counter bore bottom of fixed block, other end fixed connection the fore-set.
The utility model provides an in the outdoor high-voltage vacuum circuit breaker's a preferred embodiment, the fixed block is the annular, just the counter bore is equipped with 1 ~ 3 with the concentric equipartition of shrinkage pool in the fixed block, each all be equipped with the fore-set by spring coupling in the counter bore.
In the utility model provides an outdoor high-voltage vacuum circuit breaker's a preferred embodiment, the fixed block with the rolling disc all adopts non-metallic material to make.
In a preferred embodiment of the outdoor high voltage vacuum circuit breaker, the rotating shaft is further provided with a clamp spring at two sides of the bracket.
The utility model provides an in an outdoor high voltage vacuum circuit breaker's a preferred embodiment, isolator's isolation switch articulate in vacuum circuit breaker's insulating pillar high voltage input end, on vacuum circuit breaker's the insulating pillar deviate from one side of isolator is equipped with current transformer, current transformer's one end is established to the high voltage output end.
Compared with the prior art, the utility model provides an outdoor high-pressure vacuum circuit breaker's beneficial effect is:
the self-locking device is arranged between the rotating shaft and the shell of the isolating switch, and a locking retaining force of a rotating disc fixedly arranged on the rotating shaft is applied through the spring and the top column, so that the rotating shaft can rotate only under certain external tension, the problem that the isolating knife switch falls back and is switched on when the isolating knife switch is switched off due to accidents is avoided, and the isolating knife switch always has a locking retaining force to ensure the retaining state of the isolating knife switch no matter the isolating knife switch is switched off or is switched on;
one end of an isolation disconnecting link of the isolating switch is hinged and electrically connected with a high-voltage input end of an insulating support of the vacuum circuit breaker, and the current transformer and the isolating switch are arranged on the opposite side of the vacuum circuit breaker, so that the problem that the wire inlet end of the vacuum circuit breaker is always electrified no matter the vacuum circuit breaker and the isolating switch are in a switching-off state or a switching-on state is solved; meanwhile, the problems that the isolation switch is adjacent to the current transformer in position and the installation wiring and the daily maintenance of the current transformer are interfered are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and 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 without inventive work, wherein:
fig. 1 is a side view of an outdoor high voltage vacuum circuit breaker provided by the present invention;
fig. 2 is a side view of a mounting structure of a self-locking device of the disconnector of the outdoor high voltage vacuum circuit breaker provided in fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Please refer to fig. 1 and fig. 2 together, the outdoor high-voltage vacuum circuit breaker includes a vacuum circuit breaker 1, one side of the vacuum circuit breaker is provided with a disconnecting switch 2, the disconnecting switch 2 includes a bracket 21, an insulating pull rod 22, a post insulator 23, an isolating switch 24, a rotating shaft 25 and a rotating arm 26, the bracket 21 is fixedly installed at one side of the vacuum circuit breaker 1, the post insulator 23 is installed at the bracket 21, one end of the isolating switch 24 is hinged at the insulating post 12 of the vacuum circuit breaker 1, the other end of the isolating switch 24 is electrically connected with the post insulator 23, the rotating shaft 25 is rotatably installed at the bracket 21, the rotating arm 26 is fixed at the rotating shaft 25, the other end of the rotating shaft 25 is hinged with one end of the insulating pull rod 22, and the other end of the insulating pull rod. The disconnecting switch 2 and the vacuum circuit breaker 1 in this embodiment are both in the prior art, and are not described herein.
The key of the embodiment is as follows: the two ends of the rotating shaft 25 are rotatably mounted on the support 21 through bearings 3, one end of the rotating shaft 25 extends out of the support 21, a handle 4 is fixedly mounted at the end, and a self-locking device 5 is further arranged between the support 21 and the handle 4.
Specifically, in this embodiment self-lock device 5 includes fixed block 51, rolling disc 52, fore-set 53 and spring 54, rolling disc 52 fixed mounting in pivot 25, fixed block 51 is relative rolling disc 52 fixed mounting in support 21, the rolling disc 52 is relative one side periphery equipartition of fixed block 51 has a plurality of sphere type shrinkage pools 520 of concentric setting, fixed block 51 lies in same circumference department of shrinkage pools 520 is equipped with counter bore 510, in counter bore 510 was located to the one end of fore-set 53, the other end of fore-set 53 is established to the ball profile with shrinkage pools 520 assorted, the one end of spring 54 is connected the counter bore 510 bottom of fixed block, other end fixed connection fore-set 53.
In the embodiment, the self-locking device 5 applies a locking retaining force to the rotating disc 52 fixedly mounted on the rotating shaft 25 by using the spring 54 and the top post 53 of the self-locking device in the rotating process of the rotating shaft 25 of the isolating switch 2, so that the rotating shaft 25 can rotate only under certain external tension, the problem that the isolating switch 24 falls back and is switched on when being switched off due to accidents is avoided, and the isolating switch always has a locking retaining force to ensure the retaining state of the isolating switch no matter the isolating switch is switched off or is switched on.
Preferably, the fixed block 51 in this embodiment is the annular, just the counter bore 510 is equipped with 1 ~ 3 with the concentric equipartition of shrinkage pool 520 in fixed block 51, each all be equipped with the fore-set 53 of being connected by spring 54 in the counter bore 510, 3 counter bores 510 of the preferred design of this embodiment, 3 counter bores 510 are equilateral triangle and arrange, withhold shrinkage pool 520 on the rolling disc 52 through 3 fore-set 53, realize that pivot 25 needs certain external pulling force to make the fore-set 53 break away from shrinkage pool 520, make isolation switch 24 possess certain self-sustaining ability.
Preferably, the fixed block 51 and the rotating disc 52 in this embodiment are both made of non-metal materials.
Preferably, in this embodiment, the rotating shaft 25 is further provided with clamp springs 6 at two sides of the bracket, so as to prevent the rotating disc 52 from being separated from the fixed block 51 due to the left and right movement of the rotating shaft 25, thereby reducing the locking effect.
In this embodiment, as a further step, the disconnecting switch 24 of the disconnecting switch 2 is hinged to the high-voltage input end of the insulating column 12 of the vacuum circuit breaker 1, a current transformer 7 is arranged on one side of the insulating column 12 of the vacuum circuit breaker 1, which is far away from the disconnecting switch 2, and one end of the current transformer 7 is set as a high-voltage output end.
In the embodiment, the isolating switch 2 and the current transformer of the vacuum circuit breaker 1 are separately installed, so that the problems of interference on the installation and wiring of the current transformer and daily maintenance caused by the adjacent positions of the isolating switch 24 and the current transformer 7 are solved; meanwhile, one end of the isolation disconnecting link 24 is hinged and electrically connected with the high-voltage input end of the insulation strut 12 of the vacuum circuit breaker 1, the current transformer 7 and the isolation switch 2 are installed on the opposite side of the vacuum circuit breaker 1, and the problem that the inlet wire end of the vacuum circuit breaker is always electrified no matter the vacuum circuit breaker 1 and the isolation switch 2 are in an opening state or a closing state is solved.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an outdoor high-voltage vacuum circuit breaker, includes vacuum circuit breaker, one side of vacuum circuit breaker is equipped with isolator, isolator includes support, insulating pull rod, post insulator, isolation switch, pivot and rocking arm, support fixed mounting is in one side of vacuum circuit breaker, post insulator installs in the support, the one end of isolation switch articulates in vacuum circuit breaker's insulating pillar, the other end with but post insulator electricity is connected, the pivot is rotatable install in the support, the rocking arm is fixed in the pivot, the other end of pivot is articulated with the one end of insulating pull rod, the other end of insulating pull rod is articulated with isolation switch, its characterized in that: the two ends of the rotating shaft are rotatably arranged on the support through bearings, one end of the rotating shaft extends out of the support, a handle is fixedly arranged at the end of the rotating shaft, and a self-locking device is further arranged between the support and the handle.
2. Outdoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: self-lock device includes fixed block, rolling disc, fore-set and spring, rolling disc fixed mounting in the pivot, the fixed block is relative rolling disc fixed mounting in the support, the rolling disc is relative one side periphery equipartition of fixed block has a plurality of sphere type shrinkage pools of concentric setting, the fixed block lies in same circumference department of shrinkage pool is equipped with the counter bore, in the counter bore was located to the one end of fore-set, the other end of fore-set was established to and is gone up shrinkage pool assorted ball-type face, the one end of spring is connected the counter bore bottom of fixed block, other end fixed connection the fore-set.
3. Outdoor high-voltage vacuum circuit breaker according to claim 2, characterized in that: the fixed block is the annular, just the counter bore is equipped with 1 ~ 3 in the fixed block with the concentric equipartition of shrinkage pool, each all be equipped with the fore-set by spring coupling in the counter bore.
4. Outdoor high-voltage vacuum circuit breaker according to claim 2, characterized in that: the fixed block with the rolling disc all adopts non-metallic material to make.
5. Outdoor high-voltage vacuum circuit breaker according to claim 1, characterized in that: the rotating shaft is also provided with clamp springs on two sides of the support.
6. An outdoor high-voltage vacuum circuit breaker according to any one of claims 1 to 5, characterized in that: the isolation switch of the isolation switch is hinged to the high-voltage input end of the insulation support of the vacuum circuit breaker, a current transformer is arranged on one side of the insulation support of the vacuum circuit breaker, which deviates from the isolation switch, and one end of the current transformer is arranged as a high-voltage output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689793.7U CN210607086U (en) | 2019-10-10 | 2019-10-10 | Outdoor high-voltage vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921689793.7U CN210607086U (en) | 2019-10-10 | 2019-10-10 | Outdoor high-voltage vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210607086U true CN210607086U (en) | 2020-05-22 |
Family
ID=70697300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921689793.7U Active CN210607086U (en) | 2019-10-10 | 2019-10-10 | Outdoor high-voltage vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210607086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701006A (en) * | 2020-12-22 | 2021-04-23 | 东方电子股份有限公司 | Pole-mounted circuit breaker switch structure |
-
2019
- 2019-10-10 CN CN201921689793.7U patent/CN210607086U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701006A (en) * | 2020-12-22 | 2021-04-23 | 东方电子股份有限公司 | Pole-mounted circuit breaker switch structure |
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