CN207637727U - A kind of lock for circuit breaker shell type bounce-proof mechanism - Google Patents
A kind of lock for circuit breaker shell type bounce-proof mechanism Download PDFInfo
- Publication number
- CN207637727U CN207637727U CN201721677099.4U CN201721677099U CN207637727U CN 207637727 U CN207637727 U CN 207637727U CN 201721677099 U CN201721677099 U CN 201721677099U CN 207637727 U CN207637727 U CN 207637727U
- Authority
- CN
- China
- Prior art keywords
- cantilever
- lock
- lock tube
- separating brake
- main shaft
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/504—Manual reset mechanisms which may be also used for manual release provided with anti-rebound means
Landscapes
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model discloses a kind of lock for circuit breaker shell type bounce-proof mechanisms, including breaker body, and the mechanism main shaft and separating brake backstop axis being arranged on breaker body, it is additionally provided with cantilever on the breaker body, lock tube, rotary shaft and reset tension spring, first mounting portion of the cantilever is fixedly mounted on mechanism main shaft, the separating brake backstop axis is used to limit the limiting section of cantilever, the lock tube rotational installation is on the rotary shaft, the both ends of reset tension spring be respectively acting on breaker body and lock tube on, the extreme position that the separating brake backstop axis rotates limiting section limits.The utility model has the advantages that simple in structure, increase number of parts is few, occupies little space, the rebound of separating brake moving contact is no longer random or is influenced by moving contact spring, but it is constant in a very little in the range of, and then improve breaker disjunction and be resistant to performance in short-term.
Description
Technical field：
The utility model belongs to technical field of low-volatile distribution equipment, more particularly, to a kind of shellproof chaser of lock for circuit breaker shell type
Structure.
Background technology：
In electrical power distribution apparatus, danger of the breaker for distributing electric energy and protection circuit and equipment from failures such as overload, short circuits
Evil, with the intelligent development of power grid, net capacity is constantly expanding, and the performance for circuit protecting switch is wanted in electric system
Ask also higher and higher.For electrical power distribution apparatus, the breaking capacity of breaker is always the important test index of practical application.For
So that product breaking speed is accelerated, achievees the purpose that improve disjunction index, existing market common practice has：Enlarging mechanism spring
Power and touch spring power, this two force value increase so that and the breaking speed of breaker is fast, but this way is there are drawback, due to
Increase mechanism spring force and touch spring power, the increase of moving contact spring force value can cause moving contact separating brake in place after, move
Contact rebound increases, and then causes effectively to open away from drastically reducing, and so easily causes and restrikes, reduces disjunction instead and refer to
Mark.
Utility model content：
Technical problem to be solved in the utility model is：Open circuit by the anti-locking mechanism main shaft rebound of lock tube structure is provided
Device bounce-proof mechanism.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions：A kind of lock for circuit breaker
Shell type bounce-proof mechanism, including breaker body, and the mechanism main shaft and separating brake backstop axis that are arranged on breaker body, institute
It states and is additionally provided with cantilever, lock tube, rotary shaft and reset tension spring on breaker body, the rotary shaft is fixedly mounted on open circuit
On device ontology, shock portion, limiting section, screens protrusion and the first mounting portion, the first peace of the cantilever are provided on the cantilever
Dress portion is fixedly mounted on mechanism main shaft, and the separating brake backstop axis is used to limit the limiting section of cantilever, the lock tube rotational installation
On the rotary shaft, the lock tube is provided with the portion of being impacted and limit card slot, and the both ends of the reset tension spring are respectively acting on open circuit
On device ontology and on lock tube, being hit for lock tube is hit in the shock portion of the cantilever during with mechanism spindle axis counterclockwise rotation
The portion of hitting causes lock tube to be rotated clockwise around rotary shaft, and the screens protrusion of the cantilever can be plugged into the limit card slot of lock tube, institute
The extreme position that separating brake backstop axis rotates limiting section is stated to limit.
Preferably, the lower part of the screens protrusion on the cantilever is set as arc surface structure.
Preferably, the shock portion top surface on the cantilever is set as arc-shaped convex structure.
Preferably, installing fixation by way of welding or riveting between the cantilever and mechanism main shaft.
Compared with prior art, the usefulness of the utility model is：
1, the utility model has the advantages that simple in structure, increase number of parts is few, occupies little space, and separating brake moving contact returns
Bullet is no longer random or influenced by moving contact spring, but it is constant in a very little in the range of, and then improve open circuit
The disjunction of device and it is resistant to performance in short-term.
2, it is collision impact of the cantilever to lock tube using separating brake, the limit card slot of lock tube is stuck in the screens protrusion of cantilever
On, i.e., cantilever is blocked using lock tube, sprung back after preventing cantilever from being contacted with separating brake backstop axis, since cantilever is limited with lock tube by face
Position carries out preventing from springing back, therefore the use reliability higher of mechanism, can effectively avoid mechanism main shaft and springs back, in turn
Improve the interrupting performance of breaker.
Description of the drawings：
The utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the structural schematic diagram of breaker closing state.
Fig. 3 is the structural schematic diagram rotated after breaker lock tube is struck.
Fig. 4 is the structural schematic diagram that lock tube entangles cantilever.
Fig. 5 is the structural schematic diagram of lock tube disengaging cantilever after the completion of breaker open operation.
Fig. 6 is the structural schematic diagram of cantilever.
Fig. 7 is the structural schematic diagram of lock tube.
Specific implementation mode：
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments：
Such as Fig. 1, Fig. 6 and a kind of lock for circuit breaker shell type bounce-proof mechanism shown in Fig. 7, including breaker body 1, Yi Jishe
Mechanism main shaft 2 and separating brake backstop axis 3 on breaker body 1 are set, cantilever 4, lock tube are additionally provided on the breaker body 1
5, rotary shaft 6 and reset tension spring, the rotary shaft 6 are fixedly mounted on breaker body 1, are provided on the cantilever 4
Shock portion 41, limiting section 42, screens protrusion 43 and the first mounting portion 44, the first mounting portion 44 of the cantilever 4 are fixedly mounted on
On mechanism main shaft 2, the separating brake backstop axis 3 is used to limit the limiting section 42 of cantilever 4, and the lock tube 5 is rotatably installed in rotary shaft 6
On, the lock tube 5 is provided with the portion of being impacted 51 and limit card slot 52, and the both ends of the reset tension spring are respectively acting on breaker sheet
On body 1 and on lock tube 5, lock tube 5 is in state shown in Fig. 2 under the action of reset tension spring, and the shock portion of the cantilever 4 exists
The portion 51 that is impacted of lock tube 5 is hit during being rotated counterclockwise with mechanism main shaft 2 causes lock tube 5 to turn clockwise around rotary shaft 6
Dynamic, the screens protrusion 43 of the cantilever 4 can be plugged into the limit card slot 52 of lock tube 5, and the separating brake backstop axis 3 is to limiting section 42
The extreme position of rotation is limited.
Breaker open operation process is as follows：
As shown in Fig. 2, mechanism main shaft 2 is in closing position, lock tube 5 is under action of reset spring in position shown in Fig. 2
It sets, and there are gaps, separating brake to start between lock tube 5 and mechanism main shaft 2, mechanism main shaft 2 carries out under the action of separating brake tension spring
Separating brake drives cantilever 4 to be rotated while mechanism main shaft 2 rotates counterclockwise, when mechanism main shaft 2 is rotated to certain angle,
The shock portion 41 on 4 top of cantilever can strike the portion 51 that is impacted of lock tube 5, as shown in figure 3, lock tube 5 overcomes the effect of torsional spring at this time
Power is rotated clockwise around rotary shaft 6, and the limit card slot 52 of lock tube 5 is inserted in the screens protrusion 43 of cantilever 4；
It bounces stage and spring stop phase followed by separating brake, mechanism main shaft 2 continues inverse under the action of separating brake tension spring
Hour hands rotate, until the limiting section 42 of cantilever 4 is in contact with separating brake backstop axis 3, limiting section 42 and the separating brake backstop axis 3 of cantilever 4
It bounces immediately after contact, as shown in figure 4, at this time being lockked cantilever 4 due to lock tube 5, can avoid mechanism main shaft 2 and occur
Spring, there are certain intervals between the limiting section 42 and separating brake backstop axis 3 of cantilever 4, at this time i.e. in spring stop phase；
Reseting stage, when mechanism main shaft 2 bounce stop after, as shown in figure 5, mechanism main shaft 2 separating brake tension spring effect
It slowly rotates clockwise down, and then lock tube 5 is deviate from from cantilever 4, final lock tube 5 resets under the action of torsional spring, and cantilever 4 is dividing
It is leaned against under the action of lock tension spring on separating brake backstop axis 3.
As shown in fig. 6, being preferable to provide mode, the screens on the cantilever 4 as raised 43 one kind of screens on cantilever 4
The lower part of protrusion 43 is set as arc surface structure, and arc surface structure and limit card slot 52 are set as using the lower part of screens protrusion 43
Screens is contacted into line, is conducive to mechanism main shaft 2 after spring disappearance, screens protrusion 43 is under the action of tripping spring from limit
Deviate from the card slot 52 of position, separating brake is completed at this time, and lock tube 5 resets under the action of reset tension spring.
As shown in fig. 6,41 top surface of shock portion on the cantilever 4 is set as arc-shaped convex structure, so, cantilever
The circular arc protrusion of the top surface in the shock portion 41 on 4 carries out striking impact, i.e. shock on cantilever 4 to the portion 51 that is impacted of lock tube 5
Striking impact is carried out in such a way that line contacts between portion 41 and the portion 51 that is impacted of lock tube 5, can avoid therefore face contact impact
And lock tube 2 is caused to shake, it both ensure that the service life of lock tube 2 and lock tube installation axle, while also ensuring entire mechanism
The reliability used.
As mode is preferably fixedly mounted between cantilever 4 and mechanism main shaft 2, lead between the cantilever 4 and mechanism main shaft 2
It crosses the mode welded or riveted and fixation is installed.
It is emphasized that：The above is only the preferred embodiment of the present utility model, not appoints to the utility model
What formal limitation, any simple modification made by the above technical examples according to the technical essence of the present invention, etc.
With variation and modification, it is still within the scope of the technical solutions of the present invention.
Claims (4)
1. a kind of lock for circuit breaker shell type bounce-proof mechanism, including breaker body (1), and be arranged on breaker body (1)
Mechanism main shaft (2) and separating brake backstop axis (3), it is characterised in that：Cantilever (4), lock are additionally provided on the breaker body (1)
Set (5), rotary shaft (6) and reset tension spring, the rotary shaft (6) are fixedly mounted on breaker body (1), the cantilever
(4) it is provided with shock portion (41), limiting section (42), screens raised (43) and the first mounting portion (44) on, the of the cantilever (4)
One mounting portion (44) is fixedly mounted on mechanism main shaft (2), and the separating brake backstop axis (3) is used to limit the limiting section of cantilever (4)
(42), the lock tube (5) is rotatably installed in rotary shaft (6), and the lock tube (5) is provided with the portion of being impacted (51) and limit card slot
(52), the both ends of the reset tension spring be respectively acting on breaker body (1) and lock tube (5) on, the shock of the cantilever (4)
The portion that is impacted (51) that lock tube (5) is hit in portion during being rotated counterclockwise with mechanism main shaft (2) causes lock tube (5) around rotation
Axis (6) rotates clockwise, and the screens raised (43) of the cantilever (4) can be plugged into the limit card slot (52) of lock tube (5), described
The extreme position that separating brake backstop axis (3) rotates limiting section (42) limits.
2. lock for circuit breaker shell type bounce-proof mechanism according to claim 1, it is characterised in that：Card on the cantilever (4)
The lower part of position raised (43) is set as arc surface structure.
3. lock for circuit breaker shell type bounce-proof mechanism according to claim 1, it is characterised in that：Hitting on the cantilever (4)
It hits portion (41) top surface and is set as arc-shaped convex structure.
4. lock for circuit breaker shell type bounce-proof mechanism according to claim 1, it is characterised in that：The cantilever (4) and mechanism
Main shaft installs fixation between (2) by way of welding or riveting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677099.4U CN207637727U (en) | 2017-12-06 | 2017-12-06 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721677099.4U CN207637727U (en) | 2017-12-06 | 2017-12-06 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207637727U true CN207637727U (en) | 2018-07-20 |
Family
ID=62855525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721677099.4U Expired - Fee Related CN207637727U (en) | 2017-12-06 | 2017-12-06 | A kind of lock for circuit breaker shell type bounce-proof mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207637727U (en) |
-
2017
- 2017-12-06 CN CN201721677099.4U patent/CN207637727U/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: 20180720 Termination date: 20191206 |