CN204696022U - Operating mechanism and use the Direct Action Type earthed switch of this operating mechanism - Google Patents
Operating mechanism and use the Direct Action Type earthed switch of this operating mechanism Download PDFInfo
- Publication number
- CN204696022U CN204696022U CN201520273032.9U CN201520273032U CN204696022U CN 204696022 U CN204696022 U CN 204696022U CN 201520273032 U CN201520273032 U CN 201520273032U CN 204696022 U CN204696022 U CN 204696022U
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- connecting lever
- moving contact
- main shaft
- operating mechanism
- spring base
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Abstract
The utility model discloses a kind of operating mechanism and use the Direct Action Type earthed switch of this operating mechanism.The connecting lever of operating mechanism is connected with elastic component, like this in switching process, along with connecting lever drives moving contact relative to fixed contact knee-action, elastic component can apply corresponding moment of torsion to connecting lever, be applied to actuating force on connecting lever combine with the moment and principal Axes of turning round making elastic component be applied on connecting lever, in conjunction with after make a concerted effort by connecting lever traction moving contact carry out corresponding divide-shut brake action, thus on the basis of simple main shaft drives connecting lever, add elastic component and be applied to elastic force on connecting lever, decrease actuating force required in connecting lever push-and-pull moving contact course of action, make the separating brake of Direct Action Type earthed switch and/or feed motion time saving and energy saving.
Description
Technical field
The utility model relates to a kind of operating mechanism and uses the Direct Action Type earthed switch of this operating mechanism.
Background technology
At present, along with the raising that network system requires device security, on market, increasing user requires that in switch cubicle, earthed switch possesses the stronger ability closing short circuit current, and existing market possesses short circuit making capability and using air as the moving contact of grounding switch of dielectric be all rotating knife chip substantially, or in this fundamental mode, carry out local improvement, this type of earthed switch is as China Patent No. 200810162375.2 disclosed " indoor high-voltage electric grounding switch ", this earthed switch adds motor drive mechanism to existing modal rotating knife chip earthed switch, and fail safe is improved, but do not depart from the basic framework of rotating knife chip earthed switch.Blade type earthed switch is due to contact shape, and electric field pole is uneven, often there is partial discharge phenomenon at gate-dividing state, reduces overall security reliability.And closing in short circuit current process, because electric field inequality can cause prebreakdown too early between contact, arcing time is long, the energy produced is larger, add that the contact of rotary moving contact and fixed contact is transitioned into linear contact lay by point cantact, cause contact ablation uneven, above-mentioned several factor causes existing rotating knife chip earthed switch short circuit making capability poor, often occurs the situation that test failure explodes.
Chinese patent literature 201320825258.6 discloses a kind of solid insulation direct acting earthed switch, comprise static contact of grounding switch, moving contact of grounding switch, housing, solid insulation cylinder, static contact of grounding switch is fixed on solid insulation tube inner chamber body, static contact of grounding switch, with arcing contact, possesses earth short circuit current making capability; Solid insulation cylinder is placed in housing, and moving contact of grounding switch is also placed in housing, and moving contact of grounding switch stretches in solid insulation cylinder, to realize disconnecting or closing with static contact of grounding switch; Described housing is solid insulating material or metal material.When operating solid insulation Direct Action Type earthed switch described in the utility model and closing a floodgate, rotating operating handle, moving contact of grounding switch is driven to be moved upward in the cavity in solid insulation cylinder along the guide ring bottom solid insulation cylinder by the linkage be arranged in housing, when moving contact of grounding switch that is bar-shaped or tubulose inserts the plum blossom openend of static contact of grounding switch, the electric arc that the instantaneous closed produce power of short circuit current in current circuit is huge, the air-flow that this short circuit current electric arc produces drains in the internal cavities in housing by internal gas passageways, then drain in ambient atmosphere by the pressure relief device be arranged on solid housing, thus complete this static contact of grounding switch and moving contact of grounding switch mutually closed after, electric loop is by the function of moving contact of grounding switch ground connection.But in the switching process of this direct acting earthed switch, the actuating force that the rectilinear motion up and down of moving contact relies on manpower to be applied to operating grip completely realizes, so not only can lengthen the time needed for direct acting earthed switch switching process, make the switching operation of direct acting earthed switch slowly, and the physical demands of operating personnel can be increased, make the switching operation effort of direct acting earthed switch.In addition, after this direct acting earthed switch closes a floodgate, by the impact of moving contact of grounding switch self gravitation, moving contact of grounding switch has the trend of whereabouts, the connecting lever that trend ground connection moving contact lower end connects falls thereupon, such moving contact of grounding switch and static contact of grounding switch of causing is thrown off, automatic brake separating, namely this direct acting earthed switch needs continuation applying confining force to keep "on" position after combined floodgate, otherwise by automatic brake separating under the effect of conducting oneself with dignity at moving contact of grounding switch, whole direct acting earthed switch is made not maintain "on" position, the normal use of direct acting earthed switch cannot be ensured.
Utility model content
The purpose of this utility model is to provide a kind of operating mechanism reducing the Direct Action Type earthed switch of actuating force needed for moving contact action, and the utility model additionally provides a kind of Direct Action Type earthed switch using this operating mechanism simultaneously.
In order to realize above object, in the utility model, the technical scheme of operating mechanism is as follows:
Operating mechanism, the axis rotation comprised around horizontal-extending is assemblied in the main shaft in frame, the spin-ended guide being assemblied in the connecting lever on main shaft and being assemblied in along overhanging direction guiding movement on connecting lever projecting end, connecting lever by guide and moving contact hinged, connecting lever, moving contact form the biased slider waveguide rod mechanism moved up and down by the pitching traction moving contact of connecting lever in frame, connecting lever are connected with for applying the moment of torsion of upwards pushing tow moving contact to connecting lever and/or apply the elastic component of the moment of torsion drawing moving contact downwards to connecting lever in making process in separating brake process.
Elastic component is the cylindrically coiled spring be connected between connecting lever and frame, one end of cylindrically coiled spring is hinged on connecting lever by the first spring base, the other end is hinged in frame by the second spring base, and the hinge of the first spring base and the interval, axle center of main shaft are arranged.
Being defined in connecting lever drives the line between axle center and the hinge of the first spring base moving contact being put main shaft when putting in place to closing a floodgate to be closing position line, line when connecting lever drives the moving contact bottom to put in place to separating brake between the axle center of main shaft and the hinge of the first spring base is sub-gate position line, and the hinge of the second spring base is between closing position line and sub-gate position line.
The hinge of the second spring base is less than the distance of closing position line to the distance of sub-gate position line.
The hinge of the first spring base is offset to guide and moves linearly on connecting lever the side in direction.
Main shaft is provided with hand-operated structures and electric transmissio mechanism, and electric transmissio mechanism comprises the driving member be connected on main shaft and the double rolling key clutch be in transmission connection between driving member and motor.
In the utility model, the technical scheme of Direct Action Type earthed switch is as follows:
Direct Action Type earthed switch, comprise the operating mechanism of frame and upper assembling thereof, the axis that operating mechanism comprises around horizontal-extending rotates the main shaft be assemblied in frame, the spin-ended guide being assemblied in the connecting lever on main shaft and being assemblied in along overhanging direction guiding movement on connecting lever projecting end, connecting lever by guide and moving contact hinged, connecting lever, moving contact forms the biased slider waveguide rod mechanism moved up and down by the pitching traction moving contact of connecting lever in frame, connecting lever is connected with the moment of torsion for applying upwards pushing tow moving contact in making process to connecting lever, and/or in separating brake process, the elastic component of the moment of torsion drawing moving contact is downwards applied to connecting lever.
Elastic component is the cylindrically coiled spring be connected between connecting lever and frame, one end of cylindrically coiled spring is hinged on connecting lever by the first spring base, the other end is hinged in frame by the second spring base, and the hinge of the first spring base and the interval, axle center of main shaft are arranged.
Being defined in connecting lever drives the line between axle center and the hinge of the first spring base moving contact being put main shaft when putting in place to closing a floodgate to be closing position line, line when connecting lever drives the moving contact bottom to put in place to separating brake between the axle center of main shaft and the hinge of the first spring base is sub-gate position line, and the hinge of the second spring base is between closing position line and sub-gate position line.
Main shaft is provided with hand-operated structures and electric transmissio mechanism, and electric transmissio mechanism comprises the driving member be connected on main shaft and the double rolling key clutch be in transmission connection between driving member and motor.
In the utility model, connecting lever is connected with elastic component, like this in switching process, along with connecting lever drives moving contact relative to fixed contact knee-action, elastic component can apply corresponding moment of torsion to connecting lever, be applied to actuating force on connecting lever combine with the moment and principal Axes of turning round making elastic component be applied on connecting lever, in conjunction with after make a concerted effort by connecting lever traction moving contact carry out corresponding divide-shut brake action, thus on the basis of simple main shaft drives connecting lever, add elastic component and be applied to elastic force on connecting lever, decrease actuating force required in connecting lever push-and-pull moving contact course of action, make the separating brake of Direct Action Type earthed switch and/or feed motion time saving and energy saving.
Further, elastic component is the cylindrically coiled spring be connected between connecting lever and frame, one end of cylindrically coiled spring is hinged on connecting lever by the first spring base, the other end is hinged in frame by the second spring base, the hinge of the first spring base and the interval, axle center of main shaft are arranged, and the hinge of the second spring base is between closing position line and sub-gate position line.In combined floodgate and separating brake process, incipient stage, main shaft is applied to actuating moment of torsion on connecting lever and the elastic component elastic torque be applied on connecting lever is reverse, until the axle center of main shaft, when the hinge of the first spring base and the hinge of the second spring base are in same straight line, elastic component will be in dead-centre position, no longer will apply moment of torsion to connecting lever, and continue the words of rotary main shaft, elastic component is applied to elastic torque on connecting lever and is applied to actuating moment of torsion on connecting lever in the same way by with main shaft, with the release by elastic potential energy in elastic component, drive connecting lever quick rotation, this just makes no matter in making process, or in separating brake process, elastic component all can accelerate the power of corresponding moving contact, minimizing main shaft is applied to the actuating force on connecting lever simultaneously, thus make dividing of Direct Action Type earthed switch further, feed motion is time saving and energy saving.
Accompanying drawing explanation
Fig. 1 is the perspective view of embodiment under gate-dividing state of Direct Action Type earthed switch of the present utility model;
Fig. 2 is the perspective view of Direct Action Type earthed switch after removing top panel in Fig. 1;
Fig. 3 is the right view of Fig. 1;
Fig. 4 is the front view of Direct Action Type earthed switch under "on" position in the utility model;
Fig. 5 is the relative position schematic diagram of connecting lever and spring in Direct Action Type earthed switch in the utility model.
Embodiment
The embodiment of Direct Action Type earthed switch in the utility model: as shown in Figures 1 to 5, this Direct Action Type earthed switch is the Direct Action Type electric ground switch of the high short circuit making capability adopted in a kind of 12kV-40.5kV distribution switchgear assembly field, primarily of post insulator 1, frame 2, contact assembly 3, operating mechanism 4, motor drive mechanism more than 5 part composition.In contact assembly 3, fixed contact is fixed on the top of frame 2 by post insulator 1, in contact assembly 3, moving contact is assemblied in the bottom of frame 2 by operating mechanism 4, moving contact can vertically linear reciprocation move under the driving of operating mechanism 4, and motor drive mechanism 5 is in transmission connection on the power intake of operating mechanism 4, to apply to drive the actuating force of its action to operating mechanism 4.
This Direct Action Type earthed switch is threephase switch, and in the contact assembly 3 of each phase, moving contact and fixed contact are three phase separation formula, and the structure of every phase is substantially identical, is described below for single-phase.Frame 2 forms primarily of rear board 21, top panel 22, side plate 23 and base plate 24, and this frame 2 makes the good looking appearance of whole Direct Action Type earthed switch, and plays protection operator safety and fix and install the effects such as other components and parts.The inside of post insulator 1 is provided with charged display device, and the quiet end that one end is fixedly mounted on the top of rear board 21, the other end supports the fixed contact that is connected connects cutter hub, plays support fixed contact, insulation against ground and charged display.Contact assembly 3 forms primarily of bonding conductor 31, fixed contact 32, fairlead 33 and moving contact 34, moving contact 34 under the restriction of fairlead 33 vertically straight line pump, by with the connection of fixed contact 32 be separated realize Direct Action Type earthed switch point, close a floodgate.Operating mechanism 4 forms primarily of the second spring base 41, spring 42, first spring base 43, connecting lever 44, guide runner 45, grounding shaft 46 and main shaft 47, the effect of operating mechanism 4 is delivered on spring 42 and moving contact 34 by the input of motor actuating force and manpower, realize moving contact 34 point, feed motion, grounding shaft 46 is earthing conductor, by electric connection mode such as flexible cords by three-phase moving contact 34 reliable ground.Motor drive mechanism 5 is made up of motor 51, one-level pinion 52, one-level gear wheel 53, double rolling key clutch 54, secondary pinion 55 and secondary gear wheel 56, secondary gear wheel 56 is fixed on main shaft 47, and the input torque of motor 51 is delivered on main shaft 47 by the gear-driven deceleration of two-stage, the effect of double rolling key clutch 54 makes the two-way input of motor 51 that main shaft 47 can be driven to rotate, and main shaft 47 as driving shaft time, double rolling key clutch 54 makes main shaft 47 be separated with the transmission of single-stage, main shaft 47 can not move by drive motor 51, realize electronic and manually operated reliable separation, and reverse drive motor 51 when avoiding Direct Action Type earthed switch rapid closing, because double rolling key clutch 54 is market standard product, compare existing custom-designed clutch, in the present embodiment, the drive mechanism of motor drive mechanism 5 is simple, amount of parts is few, operational reliability is high.
The axis that main shaft 47 extends around left and right rotates and is assemblied in frame 2, the rear end of connecting lever 44 is fixed on main shaft 47, be assemblied in frame 2 to make connecting lever 44 by the axis pitching that main shaft 47 extends around left and right, and the front end of connecting lever 44 overhang before main shaft 47, the projecting end of connecting lever 44 offers the gathering sill extended along overhanging direction, along overhanging direction guiding slidable fit guide runner 45 in gathering sill, the left and right sides of guide runner 45 is respectively equipped with columned bearing pin, can to overhang direction guiding movement along connecting lever 44 in gathering sill to make this guide runner 45, the axis that can extend around left and right again rotates, and moving contact 34 is fixed on the top of guide runner 45, lead along the vertical direction to slide by fairlead 33 and be installed on the top panel 22 of frame 2 in the top of moving contact 34, thus make moving contact 34, connecting lever 44 is formed the list moved up and down by the pitching traction moving contact 34 of connecting lever 44 and is biased slider waveguide rod mechanism in frame 2.The upper end of spring 42 is hinged in frame 2 by the second spring base 41, and the second spring base 41 is rotated by the axis that the second hinge 411 extends around left and right and is assemblied in frame 2; The lower end of spring 42 is hinged on the rear end of connecting lever 44 by the first spring base 43, the first spring base 43 is offset to connecting lever 44 at the first hinge 431 of connecting lever 44 rear end and overhangs above direction.On connecting lever 44 pendulum steeve the limit position time, moving contact 34 also closes a floodgate and puts in place under the pushing tow of connecting lever 44, defines the axle center 471 of now main shaft 47 and the line of the first hinge 431 is closing position line 61; When connecting lever 44 bottom bends down limit position, moving contact 34 also under the traction of connecting lever 44 separating brake put in place, define the axle center 471 of now main shaft 47 and the line of the second hinge 411 is sub-gate position line 62.Second hinge 411 is between closing position line 61 and sub-gate position line 62, and the second hinge 411 is less than the distance of closing position line 61 to the distance of sub-gate position line 62.
First spring base 43 is T-shaped pedestal, wherein the both wings bearing pin of the first spring base 43 rotate respectively be assemblied in frame 2 the riser between side plate 23 and biside plate 23 on, belly vertical rod is installed in the middle of spring 42, and belly vertical rod is installed in the second spring base 41 along spring 42 telescopic direction guiding movement.
Bonding conductor 31 lower surface is provided with fixed contact 32, and fixed contact 32 is cylinder flap, and the hole of inserting for moving contact 34 is left in inside.During open position, because fixed contact 32 is for cylindric and there is comparatively Rouno Cormer Pregrinding Wheel lower end, moving contact 34 upper end is the upper face of bulb and top panel 22 is plane, make the more existing earthed switch of ground connection fracture electric field that formed between fixed contact 32 and moving contact 34, top panel 22 more even, reduce the possibility producing partial discharge, increase the fail safe of earthed switch.In the present embodiment, the making process of Direct Action Type earthed switch is: under motor 51 or manpower drive, main shaft 47 rotates clockwise, the connecting lever 44 be fixed on main shaft 47 is driven to rotate clockwise, simultaneously by bearing pin Compress Spring 42, after dead point crossed by spring 42, the elastic potential energy of spring 42 is discharged, and drives connecting lever 44 quick rotation, at the gathering sill that the bottom that connecting lever 44 is connected with moving contact 34 has an elongate pin poroid, guide runner 45 upper end is fixedly connected with moving contact 34, can slide in lower end in gathering sill, moving contact 34 upper end is enclosed within the fairlead 33 that is fixed in frame 2, this structure makes the rotation of connecting lever 44 can be converted into the rectilinear movement of moving contact 34, moving contact 34 fast direct line is driven to have moved upward combined floodgate, and in the elastic potential energy dispose procedure of spring 42, motor 51 power-off under program control, simultaneously under the protection of double rolling key clutch 54, the quick rotation of main shaft 47 can not be delivered to motor 51 can not.In making process, because the end face of fixed contact 32 and moving contact 34 is fillet surface, make the electric fields uniform of ground connection fracture, the fillet place, lower end 321 of fixed contact 32 and the fillet place, upper end 341 of moving contact 34 adopt the copper-tungsten of arc resistant ablation simultaneously, distance between the moving contact 34 in electric fields uniform makes Direct Action Type earthed switch when closing short circuit current prebreakdown moment and fixed contact 32 is less, reduce arcing test specimen, reduce the infringement of arc energy, copper-tungsten is adopted to add the anti-yaw damper ability of contact, add the aspectant relative motion mode of moving contact 34 and fixed contact 32 in linear motion, electric arc is more even in the ablation of contact surface, above-mentioned technological means makes Direct Action Type earthed switch in the present embodiment have the stronger ability closing short circuit current.Contrary with making process in separating brake process, repeat no more.Simultaneously because the integral layout of Direct Action Type earthed switch in the present embodiment is compact, width is less, is specially adapted to side-mounted switch cubicle, or is applied in the slender space in other switch cubicles.
In other embodiments, dynamic and static contact upper end also can adopt the material of other arc resistant ablation, and on the earthed switch not having the requirement of short circuit making capability, dynamic and static contact also overallly can adopt common electric conducting material.
In the above-described embodiments, spring is cylindrically coiled spring, and in other embodiments, this spring can be also tower spring, torsion spring etc., and tower spring is consistent with the installation site of cylindrically coiled spring, and the first hinge of lower spring end also can be on the overhanging direction of connecting lever; And spring is when being torsion spring, torsion spring unidirectionally can only press connecting lever, namely torsion spring can only a process provide power-assisted, apply resistance in another process in separating brake and combined floodgate, and now torsion spring can directly be assemblied on main shaft, namely install to apply corresponding moment of torsion between main shaft and connecting lever.
The embodiment of operating mechanism in the utility model: in the present embodiment, the structure of operating mechanism is identical with the structure of operating mechanism in above-described embodiment, therefore repeats no more.
Claims (10)
1. operating mechanism, the axis comprised around horizontal-extending rotates the main shaft be assemblied in frame, the spin-ended guide being assemblied in the connecting lever on main shaft and being assemblied in along overhanging direction guiding movement on connecting lever projecting end, connecting lever by guide and moving contact hinged, connecting lever, moving contact forms the biased slider waveguide rod mechanism moved up and down by the pitching traction moving contact of connecting lever in frame, it is characterized in that, connecting lever is connected with the moment of torsion for applying upwards pushing tow moving contact in making process to connecting lever, and/or in separating brake process, the elastic component of the moment of torsion drawing moving contact is downwards applied to connecting lever.
2. operating mechanism according to claim 1, it is characterized in that, elastic component is the cylindrically coiled spring be connected between connecting lever and frame, one end of cylindrically coiled spring is hinged on connecting lever by the first spring base, the other end is hinged in frame by the second spring base, and the hinge of the first spring base and the interval, axle center of main shaft are arranged.
3. operating mechanism according to claim 2, it is characterized in that, being defined in connecting lever drives the line between axle center and the hinge of the first spring base moving contact being put main shaft when putting in place to closing a floodgate to be closing position line, line when connecting lever drives the moving contact bottom to put in place to separating brake between the axle center of main shaft and the hinge of the first spring base is sub-gate position line, and the hinge of the second spring base is between closing position line and sub-gate position line.
4. operating mechanism according to claim 3, is characterized in that, the hinge of the second spring base is less than the distance of closing position line to the distance of sub-gate position line.
5. operating mechanism according to claim 3, is characterized in that, the hinge of the first spring base is offset to guide and moves linearly on connecting lever the side in direction.
6. operating mechanism as claimed in any of claims 1 to 5, it is characterized in that, main shaft is provided with hand-operated structures and electric transmissio mechanism, and electric transmissio mechanism comprises the driving member be connected on main shaft and the double rolling key clutch be in transmission connection between driving member and motor.
7. Direct Action Type earthed switch, comprise the operating mechanism of frame and upper assembling thereof, the axis that operating mechanism comprises around horizontal-extending rotates the main shaft be assemblied in frame, the spin-ended guide being assemblied in the connecting lever on main shaft and being assemblied in along overhanging direction guiding movement on connecting lever projecting end, connecting lever by guide and moving contact hinged, connecting lever, moving contact forms the biased slider waveguide rod mechanism moved up and down by the pitching traction moving contact of connecting lever in frame, it is characterized in that, connecting lever is connected with the moment of torsion for applying upwards pushing tow moving contact in making process to connecting lever, and/or in separating brake process, the elastic component of the moment of torsion drawing moving contact is downwards applied to connecting lever.
8. Direct Action Type earthed switch according to claim 7, it is characterized in that, elastic component is the cylindrically coiled spring be connected between connecting lever and frame, one end of cylindrically coiled spring is hinged on connecting lever by the first spring base, the other end is hinged in frame by the second spring base, and the hinge of the first spring base and the interval, axle center of main shaft are arranged.
9. Direct Action Type earthed switch according to claim 8, it is characterized in that, being defined in connecting lever drives the line between axle center and the hinge of the first spring base moving contact being put main shaft when putting in place to closing a floodgate to be closing position line, line when connecting lever drives the moving contact bottom to put in place to separating brake between the axle center of main shaft and the hinge of the first spring base is sub-gate position line, and the hinge of the second spring base is between closing position line and sub-gate position line.
10. according to the Direct Action Type earthed switch in claim 7 to 9 described in any one, it is characterized in that, main shaft is provided with hand-operated structures and electric transmissio mechanism, and electric transmissio mechanism comprises the driving member be connected on main shaft and the double rolling key clutch be in transmission connection between driving member and motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273032.9U CN204696022U (en) | 2015-04-30 | 2015-04-30 | Operating mechanism and use the Direct Action Type earthed switch of this operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520273032.9U CN204696022U (en) | 2015-04-30 | 2015-04-30 | Operating mechanism and use the Direct Action Type earthed switch of this operating mechanism |
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| Publication Number | Publication Date |
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| CN204696022U true CN204696022U (en) | 2015-10-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520273032.9U Expired - Fee Related CN204696022U (en) | 2015-04-30 | 2015-04-30 | Operating mechanism and use the Direct Action Type earthed switch of this operating mechanism |
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| CN (1) | CN204696022U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835674A (en) * | 2015-04-30 | 2015-08-12 | 国家电网公司 | Operating mechanism and direct-operated grounding switch using operating mechanism |
| CN106783365A (en) * | 2016-12-22 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of Threephase common-box high-voltage switch gear |
| CN107146733A (en) * | 2017-05-24 | 2017-09-08 | 句容市福润电气有限公司 | A kind of indoor hv earthing switch warned in place |
| CN108257813A (en) * | 2017-12-30 | 2018-07-06 | 山东泰开高压开关有限公司 | A kind of transmission device of self earthing switch divide-shut brake |
| CN108257813B (en) * | 2017-12-30 | 2024-04-19 | 山东泰开高压开关有限公司 | Transmission device for switching on and off of independent grounding switch |
-
2015
- 2015-04-30 CN CN201520273032.9U patent/CN204696022U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104835674A (en) * | 2015-04-30 | 2015-08-12 | 国家电网公司 | Operating mechanism and direct-operated grounding switch using operating mechanism |
| CN106783365A (en) * | 2016-12-22 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of Threephase common-box high-voltage switch gear |
| CN107146733A (en) * | 2017-05-24 | 2017-09-08 | 句容市福润电气有限公司 | A kind of indoor hv earthing switch warned in place |
| CN107146733B (en) * | 2017-05-24 | 2019-03-22 | 句容市福润电气有限公司 | A kind of indoor hv earthing switch warned in place |
| CN108257813A (en) * | 2017-12-30 | 2018-07-06 | 山东泰开高压开关有限公司 | A kind of transmission device of self earthing switch divide-shut brake |
| CN108257813B (en) * | 2017-12-30 | 2024-04-19 | 山东泰开高压开关有限公司 | Transmission device for switching on and off of independent grounding switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 |
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| CF01 | Termination of patent right due to non-payment of annual fee |