CN113889370A - Circuit breaker operating device divides closing indication interlocking gear - Google Patents
Circuit breaker operating device divides closing indication interlocking gear Download PDFInfo
- Publication number
- CN113889370A CN113889370A CN202010621758.2A CN202010621758A CN113889370A CN 113889370 A CN113889370 A CN 113889370A CN 202010621758 A CN202010621758 A CN 202010621758A CN 113889370 A CN113889370 A CN 113889370A
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- push pedal
- indicator
- switching
- divide
- rotation axis
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- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000009471 action Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- 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
- H01H71/1009—Interconnected mechanisms
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- Switch Cases, Indication, And Locking (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model provides a circuit breaker operating device divide-shut brake indication interlocking gear, includes curb plate (1), and cantilever (3) fixed mounting can rotate together with main shaft (2) on main shaft (2), is provided with indicator rotation axis (4) on curb plate (1), and divide-shut brake indicator (5) rotationally adorn on indicator rotation axis (4), its characterized in that: push pedal rotation axis (6) fixed mounting is in on curb plate (1), the rotatable dress of push pedal (7) is in on push pedal rotation axis (6), push pedal torsional spring (8) suit can be for on push pedal rotation axis (6) push pedal (7) provide restoring to the throne torsion, make push pedal (7) can support after operating device closes a floodgate divide-shut brake indicator (5), be provided with on cantilever (3) and hit axle (301), operating device separating brake in-process hit axle (301) and follow cantilever (3) rotate and promote simultaneously linkage portion (701) thereby drive push pedal (7) rotate and leave divide-shut brake indicator (5). This switching-on/off indication interlocking mechanism adopts the push pedal to combine torsional spring linkage indicating device, has reduced main shaft rotating resistance, avoids the motion to interfere and leads to indicating device unable normal demonstration.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a switching-on and switching-off indication interlocking mechanism of a circuit breaker operating mechanism.
Background
Circuit breakers are classified into high-voltage circuit breakers and low-voltage circuit breakers according to their range of use. The low-voltage circuit breaker is also called an automatic switch, commonly called an air switch and also called a low-voltage circuit breaker, and is an electric appliance which not only has the function of a manual switch, but also can automatically perform voltage loss, undervoltage, overload and short-circuit protection. It can be used for distributing electric energy, starting asynchronous motor infrequently, protecting power supply circuit and motor, etc., when they are seriously overloaded or short-circuited or under-voltage, etc. faults occur, it can automatically cut off circuit, its function is equivalent to the combination of fuse type switch and over-and under-heat relay, etc., and after breaking fault current, it does not need to change parts, so that it has been extensively used.
In the prior art, in the switching-on and switching-off indicating device of the circuit breaker operating mechanism, a switching-on and switching-off indicating member and a main shaft are fixed on a side plate, a special cantilever is fixed with the main shaft, and the front end of the cantilever is contacted with the rear end of the switching-on and switching-off indicating member. When the operating mechanism is in a brake-off state, the brake-on and brake-off indicating piece is in a brake-off display position under the action of the spring; when the operating mechanism is switched on; the main shaft drives the special cantilever to rotate anticlockwise, and the opening and closing indicating piece is driven by the front end of the special cantilever to rotate to a closing display position. The switching indicating device is complex in structure and large in part number, so that the cost of the whole circuit breaker is increased.
Chinese patent ZL201320798806.0 discloses a switching-off and switching-on indicating device of circuit breaker operating device, including the curb plate, the switching-off and switching-on indicating member, the main shaft, cantilever and connecting rod, the main shaft supports on the curb plate, cantilever and main shaft fixed connection, the one end of cantilever is connected with the one end of connecting rod through the round pin axle, be provided with a fixed axle on the curb plate, the switching-off and switching-on indicating member rotationally sets up on the fixed axle, be connected with a spring between the front end of curb plate and switching-off and switching-on indicating member, the other end of connecting rod can contact with the rear end of switching-off and switching-on indicating member, the main shaft is articulated with circuit breaker operating device's curb plate. When the operating mechanism is switched on, the main shaft rotates, the cantilever fixed together with the main shaft drives the connecting rod to move upwards and forwards, the connecting rod pushes the switching-on and switching-off indicating piece to rotate anticlockwise when moving upwards, and the indicating part is changed from switching-off to switching-on. This indicating device adopts link mechanism drive divide-shut brake indicator to show the divide-shut brake state in circuit breaker operating device's divide-shut brake indicating device, though the cost is reduced, but the resistance that needs to overcome in the motion process is great, and the connecting rod motion appears interfering easily and leads to indicating device unable normal display circuit breaker divide-shut brake's state, simultaneously because main shaft slew velocity is too fast when operating device closes the separating brake, easily damage indicator and indicator reset spring when operating device main shaft cantilever drive connecting rod hits the indicator, the unable normal instruction divide-shut brake state of circuit breaker.
Disclosure of Invention
The invention aims to overcome the technical defects that the existing on-off indicating device of the circuit breaker operating mechanism adopts a link mechanism with larger resistance, the service life of an indicating system is lower, and interference is easy to cause the indicating device to fail to display normally, and provides an on-off indicating interlocking mechanism of the circuit breaker operating mechanism, which adopts a push plate combined with a torsional spring to link the indicating device, reduces the rotation resistance of a main shaft, avoids the movement interference causing the indicating device to fail to display normally, the on-off indicating member is not directly contacted with the main shaft in the process of indicating the on-off state, the main shaft drives a suspension to rotate in the on-off state, the striking shaft of the suspension does not press the push plate, the push plate torsional spring drives the push plate to reset, the push plate pushes against the on-off indicating member while resetting, the indicating member is driven to rotate, the indicating member is switched to the on-off state, and the push plate in the off state is pushed away by the striking shaft of the suspension of the main shaft, the push plate is not propped against the opening and closing indicating piece, the opening and closing indicating piece switches the indicating state under the action of the torsion spring of the opening and closing indicating piece, and the indicating piece indicates the opening state. The indicating piece in the interlocking mechanism completes the switching of the switching-off state under the action of the double torsion springs, and the service life of the indicating system is greatly prolonged.
Technical scheme
In order to achieve the technical purpose, the opening and closing indication interlocking mechanism of the circuit breaker operating mechanism provided by the invention comprises a side plate, wherein a main shaft is pivotally arranged on the side plate, a cantilever is fixedly arranged on the main shaft and can rotate together with the main shaft, an indicating piece rotating shaft is arranged on the side plate, and an opening and closing indicating piece is rotatably arranged on the indicating piece rotating shaft, and the opening and closing indication interlocking mechanism is characterized in that: push pedal rotation axis fixed mounting is in on the curb plate, the rotatable dress of push pedal is in on the push pedal rotation axis, push pedal torsional spring suit is in make on the push pedal rotation axis the push pedal can support after operating device closes a floodgate divide-shut brake indicator, be provided with on the cantilever and hit the axle, hit the axle with linkage portion linkage in the push pedal, hit the axle and follow the cantilever rotates the in-process and can promote linkage portion drives the push pedal rotates and leaves divide-shut brake indicator.
Furthermore, an indicating part torsional spring is connected to the opening and closing indicating part, one end of the push plate torsional spring abuts against a first shaft on the push plate, the other end of the push plate torsional spring abuts against a second shaft on the side plate, and the elasticity of the push plate torsional spring is larger than that of the indicating part torsional spring so as to ensure that the push plate abuts against the opening and closing indicating part and the opening and closing indicating part is not rotated to reset.
Furthermore, a propping part arranged on the push plate is linked with the protruding part of the switching-on/off indicator, and the push plate props against the switching-on/off indicator by utilizing the contact of the propping part and the protruding part.
Furthermore, the side plate is provided with the push plate rotation stroke limiting shaft which can limit the rotation stroke of the push plate.
Advantageous effects
According to the switching-on and switching-off indication interlocking mechanism of the circuit breaker operating mechanism, the push plate is combined with the torsion spring linkage indicating device, the rotating resistance of the main shaft is reduced, the phenomenon that the indicating device cannot normally display due to movement interference is avoided, the switching-on and switching-off indicating pieces are not directly contacted with the main shaft in the process of indicating the switching-on and switching-off state, the switching-on and switching-off indicating pieces complete switching-on and switching-off state under the action of the torsion springs of the switching-on and switching-off indicating pieces and the torsion springs of the push plate running at a low speed, high-speed impact of rotation of the main shaft is avoided, and the service life of an indicating system is greatly prolonged.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the operating mechanism in the opening state in the embodiment of the invention.
Fig. 3 is a schematic structural diagram of the operating mechanism in a closing state in the embodiment of the present invention.
FIG. 4 is a schematic diagram of the structure of the cantilever mounted on the main shaft in the embodiment of the invention.
FIG. 5 is a schematic structural diagram of a push plate in an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of the opening and closing indicator in the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1,2 and 3, the interlocking mechanism for switching on and off indication of the circuit breaker operating mechanism comprises a side plate 1, a main shaft 2 is pivotally mounted on the side plate 1, as shown in fig. 4, a cantilever 3 is fixedly mounted on the main shaft 2 and can rotate together with the main shaft 2, an indicating part rotating shaft 4 is arranged on the side plate 1, a switching-on and off indicating part 5 is rotatably mounted on the indicating part rotating shaft 4, a push plate rotating shaft 6 is fixedly mounted on the side plate 1, a push plate 7 is rotatably mounted on the push plate rotating shaft 6, and a push plate 7 rotation stroke limiting shaft 102 is arranged on the side plate 1 and can limit the rotation stroke of the push plate 7.
As shown in fig. 1,2 and 5, a push plate torsion spring 8 is sleeved on the push plate rotating shaft 6, so that the push plate 7 can abut against the switching-on/off indicating member 5, a striking shaft 301 is arranged on the cantilever 3, the striking shaft 301 is linked with a linkage part 701 on the push plate 7, and the striking shaft 301 can push the linkage part 701 along with the rotation of the cantilever 3 in the rotating process of the cantilever 7 so as to drive the push plate 7 to rotate and leave the switching-on/off indicating member 5.
As shown in the attached drawings 1,2 and 6, an indicating part torsional spring 501 is connected to the opening and closing indicating part 5, the indicating part torsional spring 501 is arranged on an indicating part rotating shaft 4, one end of the indicating part torsional spring is propped against the opening and closing indicating part 5, the other end of the indicating part torsional spring is propped against the indicating part torsional spring limiting shaft 103 on the side plate 1, one end of a push plate torsional spring 8 is propped against a first shaft 702 on the push plate 7, the other end of the push plate torsional spring 8 is propped against a second shaft 101 on the side plate 1, and the elasticity of the push plate torsional spring 8 is larger than the elasticity of the indicating part torsional spring 501 so as to ensure that the push plate 7 is propped against the opening and closing indicating part 5 to enable the opening and closing indicating part to not to rotate and reset. The pushing plate 7 is provided with a butting part 703 which is interlocked with the protruding part 502 of the switching indicator 5, and the pushing plate 7 butts against the switching indicator 5 by the contact between the butting part 703 and the protruding part 502. In this embodiment, the abutting portion 702 is a surface of the push plate 7, and the protruding portion 502 is a shaft provided on the opening/closing indicator 5.
As shown in fig. 3, when the operating mechanism is in a closing state, the push plate 7 overcomes the resistance of the indicator torsion spring 501 under the action of the push plate torsion spring 8 to enable the push plate 7 to abut against the opening and closing indicator 5, and the opening and closing indicator 5 keeps displaying the closing state, as shown in fig. 2, when the operating mechanism is in a closing state, the main shaft 2 rotates clockwise to drive the cantilever 3 to rotate in the same direction, when the cantilever rotates, the striking shaft 301 on the cantilever pushes the linkage part 701 to push the push plate 7 to rotate away from the opening and closing indicator 5, and the opening and closing indicator 5 is not limited to be switched to the opening and closing indication state under the action of the torsion spring of the operating mechanism.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The utility model provides a breaker operating device divide-shut brake indication interlocking gear, includes curb plate (1), and the dress of main shaft (2) pivot is in on curb plate (1), cantilever (3) fixed mounting can rotate together with main shaft (2) on main shaft (2), is provided with indicator rotation axis (4) on curb plate (1), and divide-shut brake indicator (5) rotationally adorn on indicator rotation axis (4), its characterized in that: push pedal rotation axis (6) fixed mounting is in curb plate (1), and the rotatable dress of push pedal (7) is in on push pedal rotation axis (6), push pedal torsional spring (8) suit can make on push pedal rotation axis (6) push pedal (7) can support after operating device closes a floodgate divide-shut brake indicator (5), be provided with on cantilever (3) and hit axle (301), hit axle (301) with linkage portion (701) the linkage on push pedal (7), hit axle (301) and follow cantilever (3) rotate the in-process and can promote linkage portion (701) thereby drive push pedal (7) rotate and leave divide-shut brake indicator (5).
2. The switching-on and switching-off indication interlocking mechanism of the circuit breaker operating mechanism as claimed in claim 1, wherein: be connected with indicator torsional spring (501) on divide-shut brake indicator (5), push pedal torsional spring (8) one end supports axle one (702) on push pedal (7), and the other end supports axle two (101) on curb plate (1), the elasticity of push pedal torsional spring (8) is greater than the elasticity of indicator torsional spring (501) is used for guaranteeing push pedal (7) support divide-shut brake indicator (5) make its not rotate and reset.
3. The switching-on and switching-off indication interlocking mechanism of the circuit breaker operating mechanism as claimed in claim 1, wherein: the pushing plate (7) is provided with a propping part (703) which is linked with a convex part (502) of the opening and closing indicator (5), and the pushing plate (7) props against the opening and closing indicator (5) by utilizing the contact of the propping part (703) and the convex part (502).
4. The switching-on and switching-off indication interlocking mechanism of the circuit breaker operating mechanism as claimed in claim 1, wherein: the side plate (1) is provided with the push plate rotation stroke limiting shaft (102) which can limit the rotation stroke of the push plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621758.2A CN113889370B (en) | 2020-07-01 | 2020-07-01 | Switching-on and switching-off indication interlocking mechanism of breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010621758.2A CN113889370B (en) | 2020-07-01 | 2020-07-01 | Switching-on and switching-off indication interlocking mechanism of breaker operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113889370A true CN113889370A (en) | 2022-01-04 |
| CN113889370B CN113889370B (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010621758.2A Active CN113889370B (en) | 2020-07-01 | 2020-07-01 | Switching-on and switching-off indication interlocking mechanism of breaker operating mechanism |
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| Country | Link |
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| CN (1) | CN113889370B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889375A (en) * | 2020-07-01 | 2022-01-04 | 上海良信电器股份有限公司 | Circuit breaker operating device divide-shut brake interlocking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202796783U (en) * | 2012-09-18 | 2013-03-13 | 博耳(宜兴)电力成套有限公司 | Circuit breaker closing instruction device |
| CN203644689U (en) * | 2013-12-05 | 2014-06-11 | 上海良信电器股份有限公司 | Connecting and disconnecting indication device of breaker operation mechanism |
| CN203733727U (en) * | 2013-12-29 | 2014-07-23 | 上海良信电器股份有限公司 | Switchable state indicating device of circuit breaker |
| WO2015070731A1 (en) * | 2013-11-15 | 2015-05-21 | 国家电网公司 | Circuit breaker closing resistor tripping mechanism, and circuit breaker using same |
| CN205645711U (en) * | 2016-03-20 | 2016-10-12 | 浙江德菱科技股份有限公司 | On -off indication device for circuit breaker |
| CN207441618U (en) * | 2017-09-30 | 2018-06-01 | 上海良信电器股份有限公司 | A kind of energy storage closing interlocking mechanism of circuit breaker operation mechanism |
| CN212750754U (en) * | 2020-07-01 | 2021-03-19 | 上海良信电器股份有限公司 | Circuit breaker operating device divides closing indication interlocking gear |
-
2020
- 2020-07-01 CN CN202010621758.2A patent/CN113889370B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202796783U (en) * | 2012-09-18 | 2013-03-13 | 博耳(宜兴)电力成套有限公司 | Circuit breaker closing instruction device |
| WO2015070731A1 (en) * | 2013-11-15 | 2015-05-21 | 国家电网公司 | Circuit breaker closing resistor tripping mechanism, and circuit breaker using same |
| CN203644689U (en) * | 2013-12-05 | 2014-06-11 | 上海良信电器股份有限公司 | Connecting and disconnecting indication device of breaker operation mechanism |
| CN203733727U (en) * | 2013-12-29 | 2014-07-23 | 上海良信电器股份有限公司 | Switchable state indicating device of circuit breaker |
| CN205645711U (en) * | 2016-03-20 | 2016-10-12 | 浙江德菱科技股份有限公司 | On -off indication device for circuit breaker |
| CN207441618U (en) * | 2017-09-30 | 2018-06-01 | 上海良信电器股份有限公司 | A kind of energy storage closing interlocking mechanism of circuit breaker operation mechanism |
| CN212750754U (en) * | 2020-07-01 | 2021-03-19 | 上海良信电器股份有限公司 | Circuit breaker operating device divides closing indication interlocking gear |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113889375A (en) * | 2020-07-01 | 2022-01-04 | 上海良信电器股份有限公司 | Circuit breaker operating device divide-shut brake interlocking device |
| CN113889375B (en) * | 2020-07-01 | 2024-08-13 | 上海良信电器股份有限公司 | Switching-on and switching-off interlocking mechanism of breaker operating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113889370B (en) | 2024-07-16 |
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