CN210607126U - Anti-misoperation protection device for low-voltage circuit breaker - Google Patents
Anti-misoperation protection device for low-voltage circuit breaker Download PDFInfo
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- CN210607126U CN210607126U CN201920888649.XU CN201920888649U CN210607126U CN 210607126 U CN210607126 U CN 210607126U CN 201920888649 U CN201920888649 U CN 201920888649U CN 210607126 U CN210607126 U CN 210607126U
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Abstract
The utility model provides a prevent mistake and bump protection device for low-voltage circuit breaker, including base mechanism, trip button on the returning face plate, trip button returning face plate and closing button returning face plate under returning face plate, closing button. And the two sides of the front surface of the base mechanism are respectively provided with an upper opening button turning plate and an upper closing button turning plate which respectively cover the opening button and the closing button of the low-voltage circuit breaker. The back of the upper turning plate of the opening button is correspondingly provided with a lower turning plate of the opening button. The back of the upper turning plate of the closing button is correspondingly provided with a lower turning plate of the closing button. The utility model discloses can prevent that the mistake from touching breaker separating brake, combined floodgate button, easy operation, the using-way is nimble changeable and the operation is very convenient.
Description
Technical Field
The utility model belongs to the technical field of low-voltage circuit breaker, concretely relates to prevent mistake and bump protection device for low-voltage circuit breaker.
Background
The nuclear power station uses a large number of ABB SACE Emax series low-voltage circuit breakers, and mechanical switch-off and switch-on buttons on the circuit breaker bodies of the series low-voltage circuit breakers are not designed and provided with devices for preventing mistaken touch and isolation. When the breaker is operated, the mechanical switch-off button is easily touched by mistake, so that the power failure accident is caused, and the breaker is not provided with reliable measures to keep the switch-off button in a switch-off state during maintenance. Due to the lack of related devices, important equipment is powered off due to the fact that the switch is touched by mistake, and the safety of the nuclear power unit is affected. In addition, the electric overhaul work can not realize safe and reliable isolation measures, and certain potential safety hazards exist. There is an urgent need to invent a new device to solve the above problems in the prior art.
Disclosure of Invention
The utility model mainly aims at providing a prevent mistake and bump protection device for low voltage circuit breaker realizes preventing that the mistake from bumping, guarantee electrical equipment safe and reliable operation and maintenance.
The utility model adopts the technical proposal that:
the utility model provides a prevent mistake and bump protection device for low-voltage circuit breaker, includes that base mechanism, switching-off button go up the returning face plate, switching-off button turn down the returning face plate, switching-on button go up the returning face plate and switching-on button turn down the returning face plate. The back of the base mechanism is fixed at the middle position of the switch-on and switch-off buttons of the low-voltage circuit breaker.
And the two sides of the front surface of the base mechanism are respectively provided with an upper opening button turning plate and an upper closing button turning plate which respectively cover the opening button and the closing button of the low-voltage circuit breaker. The back of the upper turning plate of the opening button is correspondingly provided with a lower turning plate of the opening button. The back of the upper turning plate of the closing button is correspondingly provided with a lower turning plate of the closing button.
The anti-misoperation protection device for the low-voltage circuit breaker is also provided with a steel shaft and a fixing cap. And assembly holes are formed in the base mechanism, the upper turning plate of the opening button, the lower turning plate of the opening button, the upper turning plate of the closing button and the lower turning plate of the closing button. The upper turning plate of the opening button, the lower turning plate of the opening button, the upper turning plate of the closing button and the lower turning plate of the closing button are connected with the base mechanism in a turning mode through steel shafts for assembling holes, and the end portions of the steel shafts are fixed through fixing caps to prevent loosening.
The anti-misoperation protection device for the low-voltage circuit breaker is also provided with a padlock hole. And the middle of the upper turning plate of the opening button and the middle of the upper turning plate of the closing button is provided with a hanging lock hole for isolated locking.
The anti-misoperation protection device for the low-voltage circuit breaker is also provided with a protruding mechanism. The middle of the lower trip plate of the opening button and the middle of the lower trip plate of the closing button is provided with a protruding mechanism which is used for keeping the opening button pressed in an opening state all the time when the breaker is overhauled.
The base mechanism is made of integrally cast light plastic materials.
The utility model discloses the beneficial effect who gains does:
1) when the low-voltage air circuit breaker is in an operating state, the opening button can be effectively protected through the protection of the turnover plate on the opening button, and the occurrence of power loss accidents caused by mistaken touch on the opening button is prevented;
2) when the low-voltage air circuit breaker is in a hot standby state, the switching-on button can be effectively protected through the protection of the switching-on upper/lower turnover plate, and the occurrence of accidental power transmission caused by mistaken touch on the switching-on button is prevented;
3) when the low-voltage circuit breaker is in an overhauling state, the opening button is always kept in an opening state through the protruding mechanism of the lower turning plate of the opening button, the opening button is effectively isolated, and the overhauling work of downstream electrical equipment is safely carried out.
All the above various modes can implement reliable locking through the padlock hole, prevent to turn over the board and drop and lose safeguard function.
4) The device is simple to operate, and the use method is nimble changeable and the operation is very convenient.
Drawings
Fig. 1 is a front view of a false-touch prevention protection device for a low-voltage circuit breaker;
fig. 2 is a rear view of the anti-collision protection device for the low-voltage circuit breaker;
fig. 3 is a left side view of the anti-mis-strike protection device for a low voltage circuit breaker;
fig. 4 is a right side view of the anti-collision protection device for the low-voltage circuit breaker.
Wherein: 1 is a base mechanism; 2 is a steel shaft; 3 is a fixing cap; 4, an upper turning plate of the opening button; 5 is a lower turnover plate of the opening button; 6 is a switching-on button upper turning plate; 7 is a lower turnover plate of a closing button; 8 is a padlock hole; and 9 is a protruding mechanism.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-4, the utility model provides a prevent mistake and bump protection device for low-voltage circuit breaker, including turning plate 4 on base mechanism 1, the separating brake button, turning plate 5 under the separating brake button, turning plate 6 and closing brake button down turning plate 7 on the closing brake button. The back of the base mechanism 1 is fixed at the middle position of an opening button and a closing button of the low-voltage circuit breaker.
And an upper opening button turning plate 4 and an upper closing button turning plate 6 are respectively arranged on two sides of the front surface of the base mechanism 1 and respectively cover the opening button and the closing button of the low-voltage circuit breaker. The back of the upper turning plate 4 of the opening button is correspondingly provided with a lower turning plate 5 of the opening button. And a closing button lower turnover plate 7 is correspondingly arranged on the back surface of the closing button upper turnover plate 6. The upper turning plate 4 of the opening button is used for covering the opening button so as to prevent the button from being touched by mistake. And when the lower trip plate 5 of the opening button is used for overhauling the circuit breaker, the opening button is always pressed in an opening state. The upper turning plate 6 of the closing button is used for covering the closing button so as to prevent the button from being touched by mistake. The lower turning plate 7 of the closing button is used for covering the closing button so as to prevent the button from being touched by mistake.
The anti-misoperation protection device for the low-voltage circuit breaker is also provided with a steel shaft 2 and a fixing cap 3. And assembly holes are formed in the base mechanism 1, the upper opening button overturning plate 4, the lower opening button overturning plate 5, the upper closing button overturning plate 6 and the lower closing button overturning plate 7. The upper trip plate 4 of the opening button, the lower trip plate 5 of the opening button, the upper trip plate 6 of the closing button and the lower trip plate 7 of the closing button are connected with the base mechanism 1 in a turnover mode through the steel shaft 2 for the assembly hole, and the end portion of the steel shaft 2 is fixed through the fixing cap 3 to prevent loosening.
The anti-misoperation protection device for the low-voltage circuit breaker is also provided with a padlock hole 8. And a hanging lock hole 8 is formed in the middle of the upper turning plate 4 of the opening button and the middle of the upper turning plate 6 of the closing button and used for isolated locking.
The anti-collision protection device for the low-voltage circuit breaker is also provided with a protruding mechanism 9. And a protruding mechanism 9 is arranged between the lower trip plate 5 of the opening button and the lower trip plate 7 of the closing button and is used for keeping the opening button pressed in an opening state all the time when the circuit breaker is maintained.
The base mechanism 1 is made of light plastic material which is cast integrally.
The utility model provides a prevent mistake and bump protection device's application method for low-voltage circuit breaker as follows:
1) the back of the base mechanism is fixed at the middle position of an opening button and a closing button of an ABB SACE Emax series circuit breaker by using high-strength glue.
2) When the breaker normally closes the circuit, the lower trip plate 6 of the opening button and the lower trip plate 7 of the closing button are opened and turned downwards, the upper trip plate 4 of the opening button and the upper trip plate 5 of the closing button are kept downwards, and the upper trip plate 4 of the opening button and the upper trip plate 5 of the closing button are locked by an isolation lock through a special isolation hole and are used for preventing the opening and closing button from being mistakenly touched.
3) When the breaker is opened for maintenance, the upper opening button turnover plate 4 and the upper closing button turnover plate 5 are firstly turned upwards, then the lower opening button turnover plate 6 and the lower closing button turnover plate 7 are turned upwards, and then the upper opening button turnover plate 4 and the upper closing button turnover plate 5 are turned downwards. The isolating lock is used for locking through the special isolating hole, so that reliable isolation is kept during maintenance, and the switch-on button is prevented from being touched by mistake.
Claims (5)
1. The utility model provides a prevent mistake and bump protection device for low-voltage circuit breaker which characterized in that: including base mechanism (1), last returning face plate (4) of separating brake button, lower returning face plate (5) of separating brake button, last returning face plate (6) of combined floodgate button and lower returning face plate (7) of combined floodgate button, the back of base mechanism (1) is fixed in the intermediate position that low-voltage circuit breaker divides, combined floodgate button, and the front both sides of base mechanism (1) are provided with respectively on the separating brake button returning face plate (4) and the combined floodgate button returning face plate (6), cover the separating brake and the combined floodgate button of low-voltage circuit breaker respectively, and the back correspondence of last returning face plate (4) of separating brake button is provided with lower returning face plate (5) of separating brake button, and the back correspondence of last returning face plate (6) of combined floodgate button is provided with lower returning face plate (7) of.
2. A protection device against false hits for low-voltage circuit breakers, as claimed in claim 1, characterized in that: a prevent mistake and bump protection device for low voltage circuit breaker still is provided with steel axle (2) and locking cap (3), all is provided with the equipment hole on base mechanism (1), the last returning face plate (4) of separating brake button, returning face plate (5) under the separating brake button, returning face plate (6) and closing brake button down returning face plate (7) on the closing brake button, returning face plate (4) on the separating brake button, returning face plate (5) under the separating brake button, returning face plate (6) and closing brake button down returning face plate (7) all can turn over through equipment hole with steel axle (2) and base mechanism (1) and roll over and be connected, the tip of steel axle (2) adopts locking cap (3) fixed.
3. A protection device against false hits for low-voltage circuit breakers, as claimed in claim 1, characterized in that: the anti-misoperation protection device for the low-voltage circuit breaker is further provided with an interlocking hole (8), and the interlocking hole (8) is formed in the middle of the upper turning plate (4) of the opening button and the middle of the upper turning plate (6) of the closing button.
4. A protection device against false hits for low-voltage circuit breakers, as claimed in claim 1, characterized in that: the anti-misoperation protection device for the low-voltage circuit breaker is further provided with a protruding mechanism (9), and the protruding mechanism (9) is arranged in the middle of the lower trip button turnover plate (5) and the lower trip button turnover plate (7).
5. Anti-crash protection device for low-voltage circuit breakers, as claimed in any one of claims 1 to 4, characterized in that: the base mechanism (1) is made of integrally cast light plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888649.XU CN210607126U (en) | 2019-06-13 | 2019-06-13 | Anti-misoperation protection device for low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920888649.XU CN210607126U (en) | 2019-06-13 | 2019-06-13 | Anti-misoperation protection device for low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210607126U true CN210607126U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920888649.XU Active CN210607126U (en) | 2019-06-13 | 2019-06-13 | Anti-misoperation protection device for low-voltage circuit breaker |
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| Country | Link |
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| CN (1) | CN210607126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050069A (en) * | 2021-11-26 | 2022-02-15 | 广东电网有限责任公司 | Operating handle locking device of low-voltage air circuit breaker |
-
2019
- 2019-06-13 CN CN201920888649.XU patent/CN210607126U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114050069A (en) * | 2021-11-26 | 2022-02-15 | 广东电网有限责任公司 | Operating handle locking device of low-voltage air circuit breaker |
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