CN212874342U - Outdoor vacuum circuit breaker - Google Patents
Outdoor vacuum circuit breaker Download PDFInfo
- Publication number
- CN212874342U CN212874342U CN202021906751.7U CN202021906751U CN212874342U CN 212874342 U CN212874342 U CN 212874342U CN 202021906751 U CN202021906751 U CN 202021906751U CN 212874342 U CN212874342 U CN 212874342U
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- Prior art keywords
- control handle
- transmission
- driving shaft
- rod
- connecting columns
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- Expired - Fee Related
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Abstract
The utility model discloses an outdoor vacuum circuit breaker, which comprises a transmission case and a vacuum bubble arranged on the transmission case, wherein the transmission case is provided with a driving device and a transmission assembly, and the driving device comprises a driving shaft, a middle sleeve and a control handle; two first connecting columns are symmetrically and fixedly arranged on the outer wall of the transmission case corresponding to the left side and the right side of the driving shaft, second connecting columns are respectively and fixedly arranged at the outer ends of the two connecting plates of the middle sleeve, and the second connecting columns are connected with the first connecting columns on the corresponding sides through pressure springs; the two ends of the control handle are connected with the second connecting column through the tension springs, a two-pole quick-acting structural design is adopted, when the control handle is operated by the operating rod, the control handle only swings between the two ends within a certain angle range under the elastic action of the pressure springs to move rapidly, and the effects of quick separation and connection are achieved.
Description
Technical Field
The utility model belongs to the technical field of power equipment, especially, relate to an outdoor vacuum circuit breaker.
Background
The outdoor vacuum circuit breaker is used as key equipment for controlling and protecting the safe operation of a power grid, and the main function of the outdoor vacuum circuit breaker is mainly that a driving mechanism arranged in the circuit breaker drives a moving contact in a vacuum bubble to move up and down, so that the moving contact at the lower end in a vacuum arc extinguish chamber and a fixed contact at the upper end are opened or closed, and the current is disconnected and closed in the operation of the power grid. When the circuit breaker operates in a power grid, a large current and a high voltage are loaded between a movable contact and a fixed contact of an arc extinguish chamber. Especially when the grid fails, such as: the line is short-circuited and the line is subjected to a lightning impulse, in which case the instantaneous current in the line will exceed the rated current by a few times. This requires the circuit breaker to be opened at an extremely high speed in an extremely short time, to avoid the occurrence of a restrike phenomenon, and to prevent the generation of overvoltage to burn out the power equipment.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides an outdoor vacuum circuit breaker has adopted the fast-moving structural design of dipolar formula, when operating the control handle with the action bars, the control handle only swings between the both ends of certain angle within range under the spring action of pressure spring, moves rapidly, reaches the effect of quickly separating and joint.
The utility model discloses an outdoor vacuum circuit breaker, including transmission case and the vacuum bubble of installing on the transmission case, install drive arrangement and drive assembly that is used for controlling the movable conducting rod in the vacuum bubble to reciprocate on the transmission case, drive arrangement includes drive shaft, middle cover and control handle; the driving shaft is rotatably arranged in the transmission box and connected with a transmission assembly arranged in the transmission box, the middle sleeve is fixed at the outer end of the driving shaft, two connecting plates are fixed on the excircle of the middle sleeve, the two connecting plates form an angle of 180 degrees with each other and extend out along the radial direction, two first connecting columns are symmetrically and fixedly arranged on the outer wall of the transmission box corresponding to the left side and the right side of the driving shaft, second connecting columns are respectively and fixedly arranged at the outer ends of the two connecting plates, the second connecting columns are connected with the first connecting columns on the corresponding sides through pressure springs, and the distance from the second connecting columns to the driving shaft is greater than the distance from the first connecting; the center of the control handle is rotatably sleeved on the driving shaft, two ends of the control handle are connected with the second connecting column through a tension spring, and the control handle is overlapped with the two connecting plates under the tension action of the tension spring; when the control handle is operated by the operating rod, the control handle rotates around the driving shaft, meanwhile, the connecting plate on the middle sleeve generates gradually increased tension through the tension spring, and when the tension is increased to a certain range, the middle sleeve and the connecting plate are driven to rotate, and meanwhile, the pressure spring is compressed; when the pressure spring passes through the critical point of compression of the pressure spring, the middle sleeve and the connecting plate rapidly move to the other end under the combined action of the tension spring and the elasticity of the pressure spring.
Furthermore, the two ends of the control handle are respectively fixed with a third connecting column, and the tension springs are connected between the third connecting columns and the second connecting columns on the corresponding sides, so that the overall stress performance is good, and the structural stability is better.
Furthermore, the two ends of the control handle are provided with operation holes, so that the control handle can be operated conveniently by using an operation rod.
Further, the transmission assembly comprises a main transmission rod, a first connecting rod and a return spring, the main transmission rod is horizontally and slidably arranged in the transmission box, and the main transmission rod is in transmission connection with the outer rods of the vacuum bubble movable conducting rods through the first connecting rods; the reset spring is connected between the main transmission rod and the box body of the transmission box and is parallel to the main transmission rod; a plane connecting rod mechanism is formed between the outer rod and the main transmission rod, the structure is compact, the size is small, and the action consistency of each vacuum bubble is good.
Further, the inner end and the final drive pole transmission of drive shaft are connected for drive final drive pole axial displacement, and the structure that can take is: the inner end of the driving shaft is fixed with a swing rod, and the swing rod is connected with the main transmission rod through a second connecting rod to form a swing rod slider mechanism.
The utility model has the advantages that: the utility model discloses an outdoor vacuum circuit breaker has adopted the fast-moving structural design of dipolar formula, when operating the control handle with the action bars, the control handle only swings between the both ends of certain angle within range under the spring action of pressure spring, moves rapidly, reaches the effect of quickly separating and joint.
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 embodiments or the technical solutions in the prior art will be briefly described below. In the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1 and 2: the outdoor vacuum circuit breaker comprises a transmission case 7 and a vacuum bubble 1 arranged on the transmission case 7, wherein a driving device and a transmission assembly for controlling a movable conducting rod in the vacuum bubble 1 to move up and down are arranged on the transmission case 7, and the driving device comprises a driving shaft 5, a middle sleeve 6 and a control handle 2; the driving shaft 5 is rotatably arranged in the transmission box 7 and connected with a transmission assembly arranged in the transmission box 7, the middle sleeve 6 is fixed at the outer end of the driving shaft 5, two connecting plates 8 are fixed on the excircle of the middle sleeve 6, the two connecting plates 8 mutually form an angle of 180 degrees and extend out along the radial direction, two first connecting columns 12 are symmetrically and fixedly arranged on the outer wall of the transmission box 7 corresponding to the left side and the right side of the driving shaft 5, second connecting columns 11 are respectively and fixedly arranged at the outer ends of the two connecting plates 8, the second connecting columns 11 are connected with the first connecting columns 12 on the corresponding sides through pressure springs 4, and the distance from the second connecting columns 11 to the driving shaft 5 is greater than the distance from the first connecting columns 12 to the; the center of the control handle 2 is rotatably sleeved on the driving shaft 5, two ends of the control handle 2 are connected with the second connecting column 11 through the tension spring 3, and the control handle 2 is overlapped with the two connecting plates 8 under the tension action of the tension spring 3; when the control handle 2 is operated by the operating rod, the control handle 2 rotates around the driving shaft 5, meanwhile, the tension spring 3 generates gradually increasing tension on the connecting plate 8 on the middle sleeve 6, and when the tension is increased to a certain range, the middle sleeve 6 and the connecting plate 8 are driven to rotate, and the pressure spring 4 is compressed; when the pressure spring 4 is compressed beyond a critical point, the middle sleeve 6 and the connecting plate 8 rapidly move to the other end under the combined action of the tension spring 3 and the elasticity of the pressure spring 4.
In this embodiment, the two ends of the control handle 2 are respectively fixed with the third connecting column 10, and the tension spring 3 is connected between the third connecting column 10 and the second connecting column 11 on the corresponding side, so that the overall stress performance is good, and the structural stability is better.
In this embodiment, the two ends of the control handle 2 are provided with the operation holes 9, which is convenient for operating the control handle 2 by using the operation rod.
In this embodiment, the transmission assembly includes a main transmission rod, a first connecting rod and a return spring, the main transmission rod is horizontally slidably installed in the transmission box 7, and the main transmission rod is in transmission connection with the outer rods of the movable conductive rods of the vacuum bubbles 1 through the first connecting rod; the reset spring is connected between the main transmission rod and the box body of the transmission box 7 and is parallel to the main transmission rod; a plane connecting rod mechanism is formed between the outer rod and the main transmission rod, the structure is compact, the size is small, and the action consistency of each vacuum bubble 1 is good.
In this embodiment, the inner end of the driving shaft 5 is in transmission connection with the main transmission rod, and is used for driving the main transmission rod to axially move, and the structure that can be adopted is as follows: a swing rod is fixed at the inner end of the driving shaft 5, and the swing rod is connected with the main transmission rod through a second connecting rod to form a swing rod slider mechanism.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (5)
1. The utility model provides an outdoor vacuum circuit breaker, includes the transmission case and installs the vacuum bubble on the transmission case, install drive arrangement and the drive assembly that is used for controlling the interior movable conducting rod of vacuum bubble and reciprocates on the transmission case, its characterized in that: the driving device comprises a driving shaft, a middle sleeve and a control handle; the driving shaft is rotatably arranged in the transmission box and connected with a transmission assembly arranged in the transmission box, the middle sleeve is fixed at the outer end of the driving shaft, two connecting plates are fixed on the excircle of the middle sleeve, the two connecting plates form an angle of 180 degrees with each other and extend out along the radial direction, two first connecting columns are symmetrically and fixedly arranged on the outer wall of the transmission box corresponding to the left side and the right side of the driving shaft, second connecting columns are respectively and fixedly arranged at the outer ends of the two connecting plates, the second connecting columns are connected with the first connecting columns on the corresponding sides through pressure springs, and the distance from the second connecting columns to the driving shaft is greater than the distance from the first connecting; the center of the control handle is rotatably sleeved on the driving shaft, two ends of the control handle are connected with the second connecting column through the tension spring, and the control handle is coincided with the two connecting plates under the tension action of the tension spring.
2. Outdoor vacuum interrupter according to claim 1, characterized in that: and the two ends of the control handle are respectively fixed with a third connecting column, and the tension spring is connected between the third connecting column and the second connecting column on the corresponding side.
3. Outdoor vacuum interrupter according to claim 2, characterized in that: and two ends of the control handle are provided with operation holes.
4. Outdoor vacuum interrupter according to claim 3, characterized in that: the transmission assembly comprises a main transmission rod, a first connecting rod and a return spring, the main transmission rod is horizontally and slidably arranged in the transmission box, and the main transmission rod is in transmission connection with the outer rods of the vacuum bubble movable conducting rods through the first connecting rods; the reset spring is connected between the main transmission rod and the box body of the transmission box and is parallel to the main transmission rod.
5. Outdoor vacuum interrupter according to claim 4, characterized in that: the inner end of the driving shaft is in transmission connection with the main transmission rod and is used for driving the main rotating rod to axially move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906751.7U CN212874342U (en) | 2020-09-04 | 2020-09-04 | Outdoor vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021906751.7U CN212874342U (en) | 2020-09-04 | 2020-09-04 | Outdoor vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212874342U true CN212874342U (en) | 2021-04-02 |
Family
ID=75194008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021906751.7U Expired - Fee Related CN212874342U (en) | 2020-09-04 | 2020-09-04 | Outdoor vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212874342U (en) |
-
2020
- 2020-09-04 CN CN202021906751.7U patent/CN212874342U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20210402 |