CN105070549A - Spring operating mechanism and opening pawl thereof - Google Patents
Spring operating mechanism and opening pawl thereof Download PDFInfo
- Publication number
- CN105070549A CN105070549A CN201510495507.3A CN201510495507A CN105070549A CN 105070549 A CN105070549 A CN 105070549A CN 201510495507 A CN201510495507 A CN 201510495507A CN 105070549 A CN105070549 A CN 105070549A
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- China
- Prior art keywords
- connecting lever
- separating brake
- free end
- swing arm
- secondary swing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
Abstract
The invention discloses a sparing operating mechanism and an opening pawl thereof. A main connecting lever of the opening pawl is hinged to a rack via a static hinge point. One of two free ends of the main connecting lever cooperates with an opening control piece and the other is hinged with an auxiliary swing arm via a movable hinge point. A pressure spring is connected to the auxiliary swing arm. In this way, when the whole spring operating mechanism is in the state when opening spring stored energy is kept, the auxiliary swinging arm is tightly maintained between the main connecting lever and a keeping connecting lever, and the auxiliary swinging arm passes the dead point state of the static hinge point in the extension direction or the free end of the keeping connecting arm imposes torque in the anticlockwise direction by regarding the static hinge point as the support point on the main connecting lever via the auxiliary swinging arm, so the auxiliary swinging arm is firmly clamped between the main connecting lever and the keeping connecting arm. When the bake is opened, the free end of the auxiliary swinging arm swings relative to the main connecting lever anticlockwise and the swinging space of the free end of the keeping connecting lever is left. Meanwhile, for the whole opening pawl, the swinging amplitude of the auxiliary swinging arm is quite small, thereby increasing use rate of the space of the rack.
Description
Technical field
The present invention relates to a kind of spring operating mechanism and the sincere son of separating brake thereof.
Background technology
At present, in high voltage switchgear, breaker mechanism adopts spring operating mechanism mostly, and its main transmission mainly adopts double leval jib and five bar linkage structures, and its transmission link parts are more, and reliability is low, and cost is high.
Chinese patent literature CN103456558A(date of publication is on December 18th, 2013) disclose " a kind of operating mechanism of vacuum circuit-breaker ", comprise the stored energy mechanism of frame and upper assembling thereof, switching-on mechanism, brake separating mechanism and output mechanism, stored energy mechanism comprises the energy storage axle be assemblied in frame, and the two ends of energy storage axle connect energy storage extension spring respectively by energy-storage crank arm; Switching-on mechanism comprises the combined floodgate semiaxis be assemblied in frame, be fixed on the driving cam on energy storage axle and the energy storage be between combined floodgate semiaxis and driving cam keeps sincere son, when the energy storage of energy storage axle puts in place, energy storage keeps the two ends of sincere son to hold out against respectively on driving cam and combined floodgate semiaxis, to keep the energy storage state of energy storage axle; Brake separating mechanism comprises the separating brake semiaxis be assemblied in frame and the sincere son of separating brake be fixed on energy storage axle; Output mechanism comprises the output revolving shaft be assemblied in frame, output revolving shaft is connected insulated tension pole by connecting connecting lever with linkage, output revolving shaft is equipped with the power connecting lever coordinated with driving cam and the maintenance connecting lever coordinated with the sincere son of separating brake, power connecting lever drives main axis under the shock of driving cam, and when output revolving shaft is in "on" position, the two ends of the sincere son of separating brake hold out against respectively on maintenance connecting lever and separating brake semiaxis.Like this in thermal energy storage process, after energy storage axle rotate in place, energy storage keeps the two ends of sincere son to hold out against respectively on driving cam and combined floodgate semiaxis, to keep the energy storage state of energy storage axle; In making process, by rotating combined floodgate semiaxis, remove combined floodgate semiaxis keeps sincere son constraint to energy storage, now energy storage axle also constraint relief, energy storage axle will drive the free end of driving cam ram drive connecting lever, to make driving connecting lever drive output revolving shaft to rotate, until output revolving shaft turn to combined floodgate put in place position time, the two ends of the sincere son of separating brake hold out against respectively on maintenance connecting lever and separating brake semiaxis, remain on "on" position to make output revolving shaft; When needs separating brake, by rotating separating brake semiaxis, make separating brake semiaxis unclamp the sincere son of separating brake, make to keep connecting lever constraint relief, output revolving shaft turns to gate-dividing state under the effect of tripping spring.But because the sincere son of separating brake is relatively fix or be wholely set with keeping the position that cooperatively interacts of connecting lever relative to all the other respective positions, so when starting separating brake action, for getting out of the way the radius of gyration keeping connecting lever, the sincere son of separating brake need rotate larger angle, thus when brake separating mechanism is arranged, larger swing space need be reserved to the sincere son of separating brake, cause installing space limited in the frame of operating mechanism to be wasted, also increase the difficulty of operating mechanism dismounting.
Summary of the invention
The object of this invention is to provide the sincere son of separating brake that when a kind of separating brake is threaded off, amplitude of fluctuation is little, present invention also offers a kind of spring operating mechanism using the sincere son of this separating brake simultaneously.
In order to realize above object, in the present invention, the technical scheme of spring operating mechanism is as follows:
Spring operating mechanism, comprise the maintenance connecting lever of frame and upper rotation assembling thereof, the sincere son of separating brake, one end of the sincere son of separating brake is used for coordinating with keeping the free end of connecting lever, the other end of the sincere son of separating brake is connected with for keeping connecting lever when tripping spring energy storage keeps by the sincere son locking of separating brake, discharge the sincere son of separating brake when starting separating brake and remove the separating brake control piece to the constraint keeping connecting lever, and to define the sincere son of separating brake getting out of the way rotation direction when keeping the free end of connecting lever be clockwise direction, the sincere attached bag of separating brake is drawn together and is rotated by determining hinge the main connecting lever be assemblied in frame, in two free ends of main connecting lever, one coordinates with separating brake control piece, another is hinged with secondary swing arm by dynamic hinge, secondary swing arm is connected with and applies clockwise moment of torsion to it, for the holddown spring free end of secondary swing arm is pressed on the free end keeping connecting lever, and when tripping spring energy storage keeps, secondary swing arm stretching is at main connecting lever and keep between connecting lever, secondary swing arm be bearing of trend cross the dead point state of determining hinge or keep the free end of connecting lever by secondary swing arm to main connecting lever applying to determine the anticlockwise moment of torsion that hinge is fulcrum, when starting separating brake, main connecting lever secondary swing arm hinged end and keep connecting lever all to apply anticlockwise moment of torsion to secondary swing arm at the free end of secondary swing arm, the free end of secondary swing arm is relative to main connecting lever counter-clockwise swing and get out of the way the swing space of free end keeping connecting lever.
Keep the free end of connecting lever being convexly equipped with the anti-avulsion gear edge stoping the free end of secondary swing arm to be deviate from when tripping spring energy storage keeps, the side near maintenance connecting lever articulated section on anti-avulsion gear edge has the pushing tow face for the free end of the secondary swing arm of pushing tow counterclockwise when starting separating brake.
Determine hinge is rotatably equipped with the energy storage that pivot center overlaps with the sincere son of separating brake and keep sincere son, energy storage keeps sincere son and the sincere son of separating brake to relatively rotate.
The free end of secondary swing arm is rotatably equipped with and the separating brake roller keeping the free end of connecting lever to roll coordinating.
Holddown spring is be assemblied in the torsion spring before main connecting lever and secondary swing arm.
Frame is equipped with the output toggle arm relative to keeping connecting lever to be fixedly installed, output toggle arm offers the connection elongated hole extended along overhanging direction, connect in elongated hole and be equipped with connection sliding block along hole length direction guiding, connection sliding block is hinged between the free end of output toggle arm and the input of insulated tension pole.
The homonymy of the sincere son of separating brake and maintenance connecting lever is provided with the driving cam rotating and be assemblied in frame, and in frame, be equipped with the power connecting lever that be fixedly installed relative to keeping connecting lever, and power connecting lever is used for being clashed into by driving cam when starting to close a floodgate and rotating counterclockwise.
Separating brake control piece is rotate the separating brake semiaxis be assemblied in frame.
In the present invention, the technical scheme of the sincere son of separating brake is as follows:
The sincere son of separating brake, comprise for rotating by determining hinge the main connecting lever be assemblied in frame, in two free ends of main connecting lever, one is hinged with secondary swing arm for coordinating with separating brake control piece, on another by dynamic hinge, secondary swing arm is connected with and applies clockwise moment of torsion, for the holddown spring be pressed on by the free end of secondary swing arm on the free end keeping connecting lever to it.
The free end of secondary swing arm is rotatably equipped with for rolling the separating brake roller coordinated with keeping the free end of connecting lever.
In the present invention, the main connecting lever of the sincere son of separating brake is hinged in frame by determining hinge, in two free ends of main connecting lever, one is hinged with secondary swing arm for coordinating with separating brake control piece, on another by dynamic hinge, secondary swing arm is connected with and applies clockwise moment of torsion, for the holddown spring be pressed on by the free end of secondary swing arm on the free end keeping connecting lever to it.Like this when whole spring operating mechanism is in tripping spring energy storage hold mode, secondary swing arm stretching is at main connecting lever and keep between connecting lever, secondary swing arm be bearing of trend cross the dead point state of determining hinge or keep the free end of connecting lever by secondary swing arm to main connecting lever applying to determine the anticlockwise moment of torsion that hinge is fulcrum, to make secondary swing arm not dead between main connecting lever and maintenance connecting lever, and the sincere son of whole separating brake is locked between maintenance connecting lever and separating brake control piece, when starting separating brake, main connecting lever all to secondary swing arm applies anticlockwise moment of torsion with maintenance connecting lever at the free end of secondary swing arm at the hinged end of secondary swing arm, the free end of secondary swing arm is relative to main connecting lever counter-clockwise swing, and get out of the way the swing space of the free end keeping connecting lever, action is got out of the way by secondary swing arm, can ensure to keep connecting lever to rotate under the drive of tripping spring, realize the output of separating brake power, simultaneously with regard to the sincere son of whole separating brake, the wobbling action of secondary swing arm is less, so just can control with the wobbling action of the sincere son of the whole separating brake of wobbling action belt body of secondary swing arm the locking and the release that keep connecting lever, thus the amplitude of fluctuation of separating brake sincere son when decreasing separating brake action, also the space needed for the sincere sub-action of separating brake in whole operating mechanism is just decreased, improve the utilance in space in frame.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment under the non-energy storage state of separating brake of spring operating mechanism of the present invention;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the structural representation of embodiment under separating brake energy storage state of spring operating mechanism of the present invention;
Fig. 4 is the rearview of Fig. 5 and Fig. 6;
Fig. 5 is that the embodiment of spring operating mechanism of the present invention is at the structural representation under non-energy storage state that closes a floodgate;
Fig. 6 is the rearview of Fig. 5;
Fig. 7 is the structural representation of embodiment under the energy storage state of closing a floodgate of spring operating mechanism of the present invention;
Fig. 8 is the rearview of Fig. 7.
Embodiment
The embodiment of spring operating mechanism in the present invention: as shown in Figures 1 to 8, this spring operating mechanism is a kind of 12kV high transmission efficiency spring operating mechanism being applied to breaker mechanism in ring main unit and switch cubicle, comprise the energy storage rotating shaft of frame and upper rotation assembling thereof, sincere sub-rotating shaft, output revolving shaft, energy storage rotating shaft is on the left of the line in the sincere axle center of sub-rotating shaft and the axle center of output revolving shaft, and sincere sub-rotating shaft interval is arranged in the top of output revolving shaft.Spin-endedly in energy storage rotating shaft be equipped with driving cam 2 and energy-storage crank arm 1, energy-storage crank arm 1 is in the front side of driving cam 2 and for connecting energy-stored spring, the free end of driving cam 2 is rotatably equipped with and keeps roller 13.Sincere sub-rotating shaft is equipped with the energy storage that pivot center overlaps and keeps sincere sub 10 and the sincere son of separating brake, the sincere son of separating brake is in energy storage and keeps the sincere front side of sub 10, and the sincere son of separating brake can keep sincere sub 10 to rotate relative to energy storage, wherein the sincere son of separating brake is by main connecting lever 11, secondary swing arm 9 and holddown spring composition, main connecting lever 11 is assemblied in frame with sincere sub-rotating shaft for determining hinge rotation, main connecting lever 11 is L shape connecting lever, the upper free end of main connecting lever 11 is connected with the separating brake semiaxis 12 rotating and be assemblied in frame, the lower free end of main connecting lever 11 is hinged by the hinged end of dynamic hinge and secondary swing arm 9, described holddown spring is be assemblied in the reduction torsion spring between the hinged end of secondary swing arm 9 and the lower free end of main connecting lever 11, this reduction torsion spring applies the moment of torsion making it rotate counterclockwise to secondary swing arm 9, and the free end of secondary swing arm 9 is rotatably equipped with separating brake roller 8.Output revolving shaft is splined shaft, and spin-endedly on output revolving shaft be equipped with power connecting lever 4, keep connecting lever 7 and output toggle arm 5, wherein keep connecting lever 7 to overhang to upper left side, keep the free end of connecting lever 7 being convexly equipped with anti-avulsion gear edge, anti-avulsion gear is along the pushing tow face, position, side towards the right side; Power connecting lever 4 overhangs towards lower left, the free end of power connecting lever 4 is rotatably equipped with combined floodgate roller 3; Output toggle arm 5 overhangs to the right, the projecting end of output toggle arm 5 offers the connection elongated hole extended along overhanging direction, connect in elongated hole and be equipped with connection sliding block 6 along hole length direction guiding, between the free end that connection sliding block 6 is hinged on output toggle arm 5 and the input of insulated tension pole, carry out on/off switch operation to drive insulated tension pole to move up and down by output toggle arm 5.When tripping spring energy storage keeps, secondary swing arm 9 stretching is at main connecting lever 11 and keep between connecting lever 7, keep the free end of connecting lever 7 to apply to determine the anticlockwise moment of torsion that hinge is fulcrum by secondary swing arm 9 to main connecting lever 11, and anti-avulsion gear is along the free end of secondary swing arm 9 can be stoped to deviate from; When starting separating brake, main connecting lever 11 all to secondary swing arm 9 applies anticlockwise moment of torsion with maintenance connecting lever 7 at the free end of secondary swing arm 9 at the hinged end of secondary swing arm 9, and the end face on anti-avulsion gear edge is under the thrusting action of separating brake roller 8, the free end of secondary swing arm 9 is relative to main connecting lever 11 counter-clockwise swing and get out of the way the swing space of free end keeping connecting lever 7.
In the present embodiment, the course of work of spring operating mechanism is as follows:
The non-energy storage state of separating brake as depicted in figs. 1 and 2, whole spring operating mechanism is in initial condition, all non-energy storage of energy-stored spring and tripping spring, and insulated tension pole is in gate-dividing state.
Thermal energy storage process.In an initial condition, the energy storage motor energising of spring operating mechanism, under the drive of energy storage rotating shaft, driving cam 2 and energy-storage crank arm 1 rotate clockwise, until energy-stored spring is elongated desired location by energy-storage crank arm 1, the maintenance roller 13 simultaneously on driving cam 2 also can be kept sincere sub 10 lockings by energy storage, the energy storage state of separating brake as shown in Figure 3 and Figure 4, now cut off energy storage motor power supply, energy storage terminates, and whole spring operating mechanism is in combined floodgate energy storage hold mode.
Making process.In Fig. 3 and Fig. 4 position, trigger making electromagnet, making electromagnet promotes energy storage and keeps sincere sub 10 to rotate clockwise, energy storage keeps sincere sub 10 releasings to the constraint keeping roller 13, turn clockwise under the drive of energy-stored spring to make driving cam 2, and driving cam 2 can collide the combined floodgate roller 3 on power connecting lever 4 in rotary course, output revolving shaft is driven to make power connecting lever 4, export this pen, connecting lever 7 is kept to be rotated counterclockwise non-energy storage state position of closing a floodgate shown in Fig. 5 and Fig. 6, under the effect of reduction torsion spring, secondary swing arm 9 can drive separating brake roller 8 to get back to the free end keeping connecting lever 7 simultaneously, whole spring operating mechanism is in combined floodgate hold mode, also tripping spring energy storage hold mode is in.
The words to the combined floodgate shown in Fig. 7 and Fig. 8 energy storage state of energy storage motor are started in Fig. 5 and Fig. 6 position, driving cam 2 and energy-storage crank arm 1 repeat the power rotated clockwise in thermal energy storage process, make whole spring operating mechanism again be in combined floodgate energy storage hold mode.
Separating brake process.In Fig. 5 and Fig. 6 position, under the effect of manual brake separating mechanism or tripping electromagnet, rotate separating brake semiaxis 12, main connecting lever 11 turns clockwise from half axial trough of separating brake semiaxis 12, the hinged end of secondary swing arm 9 is driven to turn clockwise to make the lower free end of main connecting lever 11, the free end pressing secondary swing arm 9 under the effect of the tripping spring simultaneously keeping connecting lever 7 can connect on power connecting lever 4 is rotated counterclockwise, remove keeping the constraint of connecting lever 7 to make secondary swing arm 9, make output toggle arm 5 can rotate to Fig. 1 and Fig. 2 position at the clockwise under influence of tripping spring, and drive insulated tension pole to perform separating brake action.
In the present embodiment, spring operating mechanism drive mechanism is simple, parts are few, by driving cam 2 directly impact dynamic swing arm drive insulated tension pole and the operation of arc control device on/off switch, compared to common quadric chain (VS1), main transmission parts of the present invention can reduce by 3 links, relative and five-bar mechanism (VK) reduces by 4 transmission links, compact conformation, takes up space little.The output angle exporting swing arm is compared to VS1 mechanism and can reduces 30%, and the amplitude H that output swing arm swings in divide-shut brake process is also reduced, and export angle less, the efficiency of loss is less, improves transmission efficiency.Therefore in the present embodiment, in spring operating mechanism, the sincere son of separating brake is suitable for the trip gear of low-angle and wide-angle, may be used in different mechanisms, realizes large low-angle output, and can reliably keep and thread off.
In other embodiments, holddown spring also can be the normal spiral column spring be connected between secondary swing arm and main connecting lever or between secondary swing arm and frame.
In other embodiments, what control the locking of main connecting lever and release also can be directly tripping electromagnet or manual brake separating push rod etc., to replace by these separating brake control pieces locking and the release that separating brake semiaxis performs main connecting lever.
In the above-described embodiments, when whole spring operating mechanism is in tripping spring energy storage hold mode, secondary swing arm stretching is at main connecting lever and keep between connecting lever, the free end of connecting lever is kept to be applied to determine the anticlockwise moment of torsion that hinge is fulcrum to main connecting lever by secondary swing arm, with the block effect turned to counterclockwise at the sincere son of separating brake by separating brake semiaxis, ensure that the sincere son of separating brake is in the lock state, and in other embodiments, when whole spring operating mechanism is in tripping spring energy storage hold mode, secondary swing arm also can cross the dead point state of determining hinge in bearing of trend, the sincere son of the separating brake being by dead-centre position cannot rotate, ensure that the sincere son of separating brake is in the lock state.
The embodiment of the sincere son of separating brake in the present invention: in the present embodiment, the structure of the sincere son of separating brake is identical with the structure of the sincere son of separating brake in above-described embodiment, therefore repeats no more.
Claims (10)
1. spring operating mechanism, comprise the maintenance connecting lever of frame and upper rotation assembling thereof, the sincere son of separating brake, one end of the sincere son of separating brake is used for coordinating with keeping the free end of connecting lever, the other end of the sincere son of separating brake is connected with for keeping connecting lever when tripping spring energy storage keeps by the sincere son locking of separating brake, discharge the sincere son of separating brake when starting separating brake and remove the separating brake control piece to the constraint keeping connecting lever, and to define the sincere son of separating brake getting out of the way rotation direction when keeping the free end of connecting lever be clockwise direction, it is characterized in that, the sincere attached bag of separating brake is drawn together and is rotated by determining hinge the main connecting lever be assemblied in frame, in two free ends of main connecting lever, one coordinates with separating brake control piece, another is hinged with secondary swing arm by dynamic hinge, secondary swing arm is connected with and applies clockwise moment of torsion to it, for the holddown spring free end of secondary swing arm is pressed on the free end keeping connecting lever, and when tripping spring energy storage keeps, secondary swing arm stretching is at main connecting lever and keep between connecting lever, secondary swing arm be bearing of trend cross the dead point state of determining hinge or keep the free end of connecting lever by secondary swing arm to main connecting lever applying to determine the anticlockwise moment of torsion that hinge is fulcrum, when starting separating brake, main connecting lever secondary swing arm hinged end and keep connecting lever all to apply anticlockwise moment of torsion to secondary swing arm at the free end of secondary swing arm, the free end of secondary swing arm is relative to main connecting lever counter-clockwise swing and get out of the way the swing space of free end keeping connecting lever.
2. spring operating mechanism according to claim 1, it is characterized in that, keep the free end of connecting lever being convexly equipped with the anti-avulsion gear edge stoping the free end of secondary swing arm to be deviate from when tripping spring energy storage keeps, the side near maintenance connecting lever articulated section on anti-avulsion gear edge has the pushing tow face for the free end of the secondary swing arm of pushing tow counterclockwise when starting separating brake.
3. spring operating mechanism according to claim 1, is characterized in that, determine hinge is rotatably equipped with the energy storage that pivot center overlaps with the sincere son of separating brake and keep sincere son, energy storage keeps sincere son and the sincere son of separating brake to relatively rotate.
4. spring operating mechanism according to claim 1, is characterized in that, the free end of secondary swing arm is rotatably equipped with and the separating brake roller keeping the free end of connecting lever to roll coordinating.
5. spring operating mechanism according to claim 1, is characterized in that, holddown spring is be assemblied in the torsion spring before main connecting lever and secondary swing arm.
6. spring operating mechanism as claimed in any of claims 1 to 5, it is characterized in that, frame is equipped with the output toggle arm relative to keeping connecting lever to be fixedly installed, output toggle arm offers the connection elongated hole extended along overhanging direction, connect in elongated hole and be equipped with connection sliding block along hole length direction guiding, connection sliding block is hinged between the free end of output toggle arm and the input of insulated tension pole.
7. spring operating mechanism according to claim 6, it is characterized in that, the homonymy of the sincere son of separating brake and maintenance connecting lever is provided with the driving cam rotating and be assemblied in frame, and in frame, being equipped with the power connecting lever that be fixedly installed relative to keeping connecting lever, power connecting lever is used for being clashed into by driving cam when starting to close a floodgate and rotating counterclockwise.
8. spring operating mechanism as claimed in any of claims 1 to 5, is characterized in that, separating brake control piece is rotate the separating brake semiaxis be assemblied in frame.
9. the sincere son of separating brake, it is characterized in that, comprise for rotating by determining hinge the main connecting lever be assemblied in frame, in two free ends of main connecting lever, one is hinged with secondary swing arm for coordinating with separating brake control piece, on another by dynamic hinge, secondary swing arm is connected with and applies clockwise moment of torsion, for the holddown spring be pressed on by the free end of secondary swing arm on the free end keeping connecting lever to it.
10. the sincere son of separating brake according to claim 9, is characterized in that, the free end of secondary swing arm is rotatably equipped with for rolling the separating brake roller coordinated with keeping the free end of connecting lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495507.3A CN105070549B (en) | 2015-08-13 | 2015-08-13 | A kind of spring operating mechanism and its sincere son of separating brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510495507.3A CN105070549B (en) | 2015-08-13 | 2015-08-13 | A kind of spring operating mechanism and its sincere son of separating brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105070549A true CN105070549A (en) | 2015-11-18 |
| CN105070549B CN105070549B (en) | 2017-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510495507.3A Active CN105070549B (en) | 2015-08-13 | 2015-08-13 | A kind of spring operating mechanism and its sincere son of separating brake |
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| Country | Link |
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| CN (1) | CN105070549B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341573A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
| CN113113270A (en) * | 2021-04-14 | 2021-07-13 | 西安西电开关电气有限公司 | Closing keeping and opening tripping system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1125812A (en) * | 1997-07-01 | 1999-01-29 | Nissin Electric Co Ltd | Operation apparatus of switch |
| CN201084661Y (en) * | 2007-07-31 | 2008-07-09 | 许昌永新电器设备有限公司 | A switching clip-connection keeping structure of high-pressure breaker |
| CN203553070U (en) * | 2013-09-29 | 2014-04-16 | 安徽鑫龙电器股份有限公司 | Opening holding device of breaker |
| CN204966313U (en) * | 2015-08-13 | 2016-01-13 | 平高集团有限公司 | Spring operating mechanism and sincere son of separating brake thereof |
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2015
- 2015-08-13 CN CN201510495507.3A patent/CN105070549B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1125812A (en) * | 1997-07-01 | 1999-01-29 | Nissin Electric Co Ltd | Operation apparatus of switch |
| CN201084661Y (en) * | 2007-07-31 | 2008-07-09 | 许昌永新电器设备有限公司 | A switching clip-connection keeping structure of high-pressure breaker |
| CN203553070U (en) * | 2013-09-29 | 2014-04-16 | 安徽鑫龙电器股份有限公司 | Opening holding device of breaker |
| CN204966313U (en) * | 2015-08-13 | 2016-01-13 | 平高集团有限公司 | Spring operating mechanism and sincere son of separating brake thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111341573A (en) * | 2018-12-18 | 2020-06-26 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
| CN111341573B (en) * | 2018-12-18 | 2022-03-22 | 天津平高智能电气有限公司 | Circuit breaker and operating mechanism thereof |
| CN113113270A (en) * | 2021-04-14 | 2021-07-13 | 西安西电开关电气有限公司 | Closing keeping and opening tripping system |
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| Publication number | Publication date |
|---|---|
| CN105070549B (en) | 2017-11-28 |
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