CN102737876A - Interlocking indication device of switch operation interlocking mechanism - Google Patents

Interlocking indication device of switch operation interlocking mechanism Download PDF

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Publication number
CN102737876A
CN102737876A CN2012102099296A CN201210209929A CN102737876A CN 102737876 A CN102737876 A CN 102737876A CN 2012102099296 A CN2012102099296 A CN 2012102099296A CN 201210209929 A CN201210209929 A CN 201210209929A CN 102737876 A CN102737876 A CN 102737876A
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CN
China
Prior art keywords
interlocking
plate
interlock
direction board
joystick
Prior art date
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Granted
Application number
CN2012102099296A
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Chinese (zh)
Other versions
CN102737876B (en
Inventor
刘俊峰
翁兴锋
邵林
许恒甲
郝霞霞
姚军
郭小磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HUAGUAN ELECTRICAL EQUIPMENT GROUP CO Ltd
Original Assignee
JIANGSU HUAGUAN ELECTRICAL EQUIPMENT GROUP CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU HUAGUAN ELECTRICAL EQUIPMENT GROUP CO Ltd filed Critical JIANGSU HUAGUAN ELECTRICAL EQUIPMENT GROUP CO Ltd
Priority to CN201210209929.6A priority Critical patent/CN102737876B/en
Publication of CN102737876A publication Critical patent/CN102737876A/en
Application granted granted Critical
Publication of CN102737876B publication Critical patent/CN102737876B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention belongs to the field of switch equipment, particularly relates to an interlocking indication device of a switch operation interlocking mechanism, comprising a signboard pull rod device which is connected with a stroke plate and a signboard; the signboard is fixedly arranged on the end of the signboard pull rod device; the signboard pull rod device is also connected with a grounding interlocking device; the grounding interlocking device comprises a connecting rod, a positioning plate and a control handle; the connecting rod is connected with the signboard pull rod device; a reset part is arranged on the connecting rod; the control handle can be rotated; the positioning plate is fixedly connected with the control handle; a movable groove is arranged on the positioning plate; a positioning rod is arranged on the connecting rod; the positioning rod is arranged on the movable groove; and both ends of the movable groove are provided with two positioning openings in reverse directions. The interlocking indication device of the switch operation interlocking mechanism has the advantages that the grounding state can be clearly known, and signals can be output synchronously through mechanical position information indication; and accurate judgment is realized through various interlocking protection mechanisms, so that error operation is prevented, and the reliability and the safety of operation and interlocking are improved.

Description

The interlocking indicating device of switching manipulation interlocking device
Technical field
The invention belongs to the switchgear field, specifically is the interlocking indicating device of a kind of switching manipulation interlocking device.
Background technology
The operation interlocking mechanism of switchgear is one of critical piece of switch; Also be the key component that security incident takes place the most easily,, personal electric shock system short-circuit take place very easily like misoperation, deformation, interlocking inefficacy etc.; Even accident such as blast, cause large-area power-cuts.
The effect of switching manipulation interlocking device is; Earthed switch in the switch cubicle is closed a floodgate and sub-switching operation; While interlocks with the circuit breaker in the switch cubicle, prevents charged splice grafting ground switch, prevents to be with ground connection to close circuit breaker and send; Thereby guarantee the fail safe that the switch cubicle line maintenance is safeguarded, prevent that the person from getting an electric shock and the generation of system short-circuit accident.
Present switch cubicle ground connection operation interlocking mechanism adopts the bevel gear transmission mechanism, no deceleration device, and operating physical force is big, is prone to sliding tooth or deformation, causes carrying out the ground connection operation; Operating mechanism and earthed switch main shaft must be on same horizontal lines, otherwise can't connect transmission, lack flexibility; Interlocking device is hard interlocking, because operating physical force is big, very easily damages locking part, causes interlocking to lose efficacy; The indication of no mechanical type position, ground state is undistinct; Like this, cause accident with regard to very easily causing fault such as misoperation, mechanism damage, interlocking inefficacy.
Summary of the invention
The problem that the present invention will solve is that the state and the interlocking that how accurately to show earthed switch operation prevent misoperation, and the interlocking indicating device of a kind of switching manipulation interlocking device is provided.
The invention provides following technical scheme:
The interlocking indicating device of switching manipulation interlocking device, it comprises direction board pull rod device and the direction board that is connected with the stroke plate, direction board is fixed on direction board pull rod device end; Described direction board pull rod device also is connected with the ground connection interlock, and this ground connection interlock comprises connecting rod, location-plate and joystick, and connecting rod is connected with the direction board pull rod device; Connecting rod is provided with reset components, and reset components one end and connecting rod are located by connecting, and the other end is connected with the mechanism casing; The termination of connecting rod is connected with joystick through another reset components, and joystick can rotate, and location-plate is fixedly connected with joystick; Location-plate is provided with a loose slot, and connecting rod is provided with backstay, and this backstay is located in the loose slot; The two ends of loose slot have two locating apertures in the opposite direction; This backstay can be located in the loose slot, also can be in two locating aperture, and two reset components active forces are opposite.
Described direction board is movably connected on mechanism's casing, and direction board one end is flexibly connecting a connecting plate, and this connecting plate and direction board pull rod device flexibly connect.
Be connected with the interlock push pedal on the described joystick; This interlock push pedal is connected with circuit breaker interlocking device, and this circuit breaker interlocking device comprises interlock plate and circuit breaker interlock plate, and the circuit breaker interlock plate withstands the interlock plate; The interlock plate is provided with a spacer pin, and spacer pin one side is located in the interlock push pedal.
Described interlock push pedal is provided with an oblique shoulder, and described spacer pin is positioned at more than the shoulder, and described interlock plate has one group of auxiliary switch that is used for status signal output.
Described joystick stretches out that mechanism case is external to be connected with rotating parts; The joystick end is provided with a plug, and rotating parts is provided with a slot, and plug is arranged in the slot; Rotating parts is provided with a screw rod; Screw rod is connected with plug through torsion spring, also is provided with a boss on the rotating parts, and this boss cooperates with location mating holes on the panel.
Described joystick is provided with a hole or recess.
Advantage of the present invention is the positional information indication through machinery, can clear and definite ground state synchronization output signal; Through accurately judgement of various interlock protection mechanism's realizations, prevent misoperation, improved operation and the reliability and the fail safe of interlocking.
Description of drawings
The structural representation that Fig. 1 installs and uses for the present invention;
Fig. 2 is the D-D cutaway view of Fig. 1;
Fig. 3 is that the A of Fig. 1 is to view;
Fig. 4 is that the B of Fig. 3 is to view;
Fig. 5 is that the C of Fig. 1 is to view;
Fig. 6 is for removing C behind the panel among Fig. 1 to view;
Fig. 7 is that the E-E of Fig. 2 is to cutaway view.
Embodiment
Extremely shown in Figure 6 like Fig. 1; The interlocking indicating device of switching manipulation interlocking device is installed in the switching manipulation interlocking device; Switching manipulation interlocking device comprises the driving mechanism be located in mechanism's casing 1 and the interlocking indicating device of switching manipulation interlocking device, and driving mechanism comprises dwang 2, drive link 3, worm screw 4, worm gear 5 and be fixed on the stroke plate 8 on the main shaft 7, and main shaft 7 is connected with flashboard 6 in the earthed switch mechanism; Be connected through universal joint between dwang 2 and the drive link 3; Be connected through another universal joint between drive link 3 and the worm screw 4, worm gear 5 cooperates with worm screw 4, and worm gear 5 is provided with push rod 5a; Stroke plate 8 is provided with stroke space 8a, and push rod 5a is located in the 8a of the trip space; The interlocking indicating device of switching manipulation interlocking device comprises direction board pull rod device 8b and the direction board 9 that is connected with stroke plate 8; Direction board 9 is fixed on direction board pull rod device 8b end; The direction board pull rod device can be that the straight-bar or the connecting rod of the straight-bar that is connected with stroke plate 8 or numerous connections formed, and has rotated dwang 2, carries out transmission through drive link 3, worm screw 4 again; Give worm gear 5 with the rotatory force transmission; Push rod 5a is fixed on the worm gear 5 can be movable in the 8a of stroke space, and through contacting of 8a two ends, stroke space and push rod 5a, the position that stroke plate 8 is produced not in the same way rotates; Thereby arrive the not rotation of position in the same way of main shaft 7, realize the combined floodgate of flashboard 6 and the work of separating brake; Wherein the rotation of stroke plate 8 drives the shift in position of direction board pull rod device 8b, shows the information different with separating brake of closing a floodgate thereby drive direction board, has guaranteed the safety of switch cubicle ground connection.
Direction board pull rod device 8b also is connected with the ground connection interlock, and this ground connection interlock comprises connecting rod 10, location-plate 11 and joystick 12, and the rotating parts 17 that is provided with on the outer panel of joystick 12 and mechanism casing 1 is connected; Connecting rod 10 is fixed with direction board pull rod device 8b, and connecting rod 10 is provided with reset components 13, and reset components 13 1 ends receive the caging bolt on the connecting rod 10 spacing; And the other end receives mechanism's casing 1 spacing; Connecting rod 10 1 ends are connected with direction board pull rod device 8b, and the end of the other end flexibly connects through another reset components 13a and joystick 12, and joystick 12 can rotate; Location-plate 11 is fixedly connected with joystick 12; Location-plate 11 is provided with a loose slot 11a, and connecting rod 10 is provided with backstay 12a, and this backstay 12a is located in the loose slot 11a; The two ends of loose slot 11a have locating aperture 11b in the opposite direction and locating aperture 11c; This backstay 12a is located in the loose slot 11a and can between two locating aperture 11b, 11c, moves, and can also be positioned among locating aperture 11b or the locating aperture 11c, and reset components 13 uses elastic reseting part usually with reset components 13a; And generally adopt spring, reset components 13 is opposite with reset components 13a active force.
When flashboard 6 separating brakes; Connecting rod 10 is pushed under the effect of direction board pull rod device 8b near joystick 12; This moment, backstay 12a was positioned on the locating aperture 11c near joystick 12 1 sides on the location-plate 11, and Spin Control handle 12 can make backstay 12a stretch among the locating aperture 11c; When flashboard 6 closes a floodgate; Connecting rod 10 pulls under the effect of direction board pull rod device 8b away from joystick 12; This moment, backstay 12a was positioned on the locating aperture 11b away from joystick 12 1 sides on the location-plate 11, and Spin Control handle 12 can make backstay 12a stretch among the locating aperture 11b; Close a floodgate or close a floodgate when becoming the state of separating brake when flashboard is being become by separating brake, this moment, backstay 12a was in loose slot 11a because connecting rod 10 receives reset components 13 and reset components 13a adverse effect power, and this moment, rotary handle 12 can't rotate.
Direction board 9 is movably connected on mechanism's casing 1 through pin 9a; Direction board 9 one ends are flexibly connecting a connecting plate 9b; This connecting plate 9b and direction board pull rod device 8b flexibly connect; In fact, thereby connecting plate 9b and connecting rod 10 flexibly connects and the direction board pull rod device flexibly connects, and is connected through connecting pin between connecting plate 9b and the connecting rod 10.
Direction board is around the moving point rotation that is connected with the mechanism casing; An end through direction board is connecting connecting plate; Connecting plate with can under the drive of direction board pull bar, rotate after the direction board pull bar is connected; Direction board only need close a floodgate in the opposite side indication at the side indication separating brake of the moving point that is connected with the mechanism casing, like this with regard to can be through the direction board rotation indication of real different earthed switch states.
Stroke space 8a is the hollow slots of circular arc, and push rod passes this hollow slots; It also can be the groove of circular arc; The push rod end is located in this groove; Thereby hollow slots can make push rod pass the stroke plate and play sufficient stroke walking and be connected, and groove can make push rod not pass the stroke plate, and push rod can not exert an influence to the inboard mechanism of stroke plate like this.
Be connected with interlock push pedal 12b on the joystick 12; This interlock push pedal 12b is connected with circuit breaker interlocking device; This circuit breaker interlocking device comprises interlock plate 14 and circuit breaker interlock plate 15, and circuit breaker interlock plate 15 is connected with circuit breaker, and interlock plate 14 abuts against circuit breaker interlock plate 15 ends; Interlock plate 14 is provided with a spacer pin 14a, and interlock push pedal 12b is located at spacer pin 14a one side.
When circuit breaker did not break off, the interlock plate received the fixation of circuit breaker interlock plate and can't move, and the spacer pin restriction interlock push pedal on the plate that links this moment is moved; Thereby joystick can't be rotated; Under the situation that circuit breaker does not have to break off, forbid earthed switch is carried out closing operation, only when circuit breaker breaks off, interlock plate and circuit breaker interlock plate can the situation of activity under; Joystick 12 can rotate, and lets the interlock push pedal push spacer pin open.
Interlock push pedal 12b is provided with a shoulder 12b1, and described spacer pin 14a is set in more than the shoulder 12b1, and the inclined-plane of this shoulder for being provided with in the interlock push pedal can better be used for spacer pin with handle turning effort masterpiece through this inclined-plane.
Interlock plate 14 has one group of auxiliary switch 16 that is used for output status signal, and this auxiliary switch is generally travel switch, travel switch linked push pedal 12b bottom flanging promotion and carry out output status signal.
Joystick 12 is connected with rotating parts 17 on mechanism casing 1 outer panels; Rotating parts 17 is provided with a hole or recess 12c; Inlet on the casing of hole or recess and operation dwang 2 is corresponding; When rotary handle rotation makes hole or recess facing to dwang, can operating grip be stretched into rotation dwang 2 on the dwang 2, if hole or recess facing to entering the mouth operating grip can't stretch in the switch cubicle dwang is rotated.
Stroke plate 8 can adopt fanning strip, triangular plate or other polygonal panel, even can adopt circular slab can both reach the function of rotation under the effect of push rod 5a, and stroke plate 8 adopts fanning strip usually.
As shown in Figure 7; Joystick 12 stretch out mechanism's casing 1 outer with panel 18 on rotating parts 17 be connected, joystick 12 ends are provided with a plug 12d, rotating parts 17 is provided with a slot; Plug is arranged in the slot; Rotating parts 17 is provided with a screw rod 19, and screw rod 19 is connected with plug through torsion spring 20, also is provided with a boss 17a on the rotating parts 17; This boss 17a cooperates with location mating holes on the panel 18, and rotating parts 17 outwards draws back when making boss 17a leave the location mating holes and could rotate.
Wherein, also be provided with latching electromagnet 19 in mechanism's casing 1, this latching electromagnet 19 is located at the side of interlock push pedal 12b; The opposite side of the shoulder 12b1 of interlock push pedal 12b is provided with a step 12b2, and latching electromagnet 19 is located on this step 12b2, can block step 12b2 when the electromagnet of latching electromagnet 19 stretches out; When earthed switch is charged; Latching electromagnet 19 dead electricity, electromagnet stretched out and blocked step 12b2 this moment, and the push pedal 12b that prevents to link moves upward; This moment, joystick 12 can't rotate, and promptly stops earthed switch is carried out closing operation.
Like Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, operation principle of the present invention is to rotate joystick 12; Make the recess 12c on the joystick 12 aim at dwang 2, changeed dwang 2 through operating grip and driven drive link 3 rotations, drive link 3 drives worm screws 4 and rotates; Worm screw 4 drives worm gear 5 and rotates, when worm gear 5 clockwise rotates, because the effect of push rod 5a; Clockwise rotate as the fanning strip of stroke plate 5 is stressed, main shaft 7 is along with fanning strip clockwise rotates, because main shaft 7 is connecting the spring on the earthed switch; When main shaft 7 turns over the dead point of spring under the fanning strip effect; Clockwise rotated again by spring action, this moment flashboard 6 along with main shaft turns clockwise, thereby realize to close a floodgate; When the needs separating brake, only need control dwang 2 to be rotated round about, worm gear 5 is rotated counterclockwise; Push rod 5a is walking counterclockwise in the 8a of the stroke space of fanning strip, when covering the stroke space 8a of idle stroke, just can give the counterclockwise active force of fanning strip stroke; Fanning strip is therefore along with rotating counterclockwise; Main shaft 7 also rotates, and flashboard 6 rotates counterclockwise when turning over the dead point of spring, thereby accomplishes separating brake.
Like Fig. 5 and shown in Figure 6, during the clockwise rotating of fanning strip, direction board pull rod device 8b adopts the connecting rod form of bending to be connected with fanning strip; Direction board pull rod device 8b is along with fanning strip is moved to the left, and direction board pull rod device 8b drives connecting rod 10 and is moved to the left, and connecting rod 10 drives connecting plate 9b and is moved to the left; Direction board 9 is that fulcrum rotates with pin 9a like this; The sign that direction board 9 indications are closed a floodgate just is presented at outside mechanism's casing 1, and when fanning strip rotated counterclockwise, direction board 9 showed that the sign of separating brake just is presented at outside mechanism's casing 1; Thereby realize the synchronous demonstration of combined floodgate or separating brake, guarantee the safety of switch cabinet grounding switch.
Like Fig. 1, shown in Figure 6, when earthed switch broke off, the backstay 12a of connecting rod 10 was arranged in locating aperture 11c; Can rotate the rotating parts 17 that is connected with joystick 12 this moment; As shown in Figure 5, initial condition is a branch position padlock, drives joystick 12 rotations during rotating parts 17 rotations; Opening on the rotating parts 17 clockwise rotates; When opening flushed with the position of dividing the position padlock, the adept place of the knob of rotating parts 17 was facing to the position of operation, and this moment, operating grip inserted rotation dwang 2 through opening; Because interlock push pedal 12b and joystick 12 be the flexible connection of radial type, so joystick 12 is when rotating, and the push pedal 12b that links moves upward; Upwards make alignment pin 14a to left movement through it self oblique shoulder 12b1, thereby drive interlock plate 14 to left movement, at this moment; Circuit breaker interlock plate 15 heads on interlock plate 14, and circuit breaker does not break off the plate 14 that then links and can't move, and receives this moment that this alignment pin 14a's is spacing; Joystick 12 can't rotate, and when circuit breaker broke off, interlock plate 14 can move; Promotion alignment pin 14a moves under the effect of the shoulder of interlock push pedal 12b; Alignment pin 14a drives interlock plate 14 and moves, thereby can rotate joystick 12, the rotation of rotating parts 17 drive joysticks 12 under the condition of circuit breaker disconnection like this; Thereby make opening aim at dwang 2, reach the purpose that to insert operating grip rotation dwang 2.
After earthed switch closes a floodgate; Rotary handle 12 will continue to rotate to a padlock state that closes; The push pedal 12b that links this moment continues to rise; Below interlock plate 14, be provided with one group of auxiliary switch 16, after interlock push pedal 12b touches auxiliary switch 16 and makes its action, represent the completion of closing a floodgate with regard to output status signal.Have two location mating holess at panel 18, the boss 17a on the last rotating parts 17 gets into another location mating holes, and rotating parts 17 can be resetted, and is used to install the slotted hole 12e alignment of padlock on rotating parts 17 and the plug 12d, padlockable.

Claims (6)

1. the interlocking indicating device of switching manipulation interlocking device, it comprises direction board pull rod device and the direction board that is connected with the stroke plate, direction board is fixed on direction board pull rod device end; Described direction board pull rod device also is connected with the ground connection interlock, and this ground connection interlock comprises connecting rod, location-plate and joystick, and connecting rod is connected with the direction board pull rod device; Connecting rod is provided with reset components, and reset components one end and connecting rod are located by connecting, and the other end is connected with the mechanism casing; The termination of connecting rod is connected with joystick through another reset components, and joystick can rotate, and location-plate is fixedly connected with joystick; Location-plate is provided with a loose slot, and connecting rod is provided with backstay, and this backstay is located in the loose slot; The two ends of loose slot have two locating apertures in the opposite direction; This backstay can be located in the loose slot, also can be in two locating aperture, and two reset components active forces are opposite.
2. the interlocking indicating device of switching manipulation according to claim 1 interlocking device; It is characterized in that: described direction board is movably connected on mechanism's casing; Direction board one end is flexibly connecting a connecting plate, and this connecting plate and direction board pull rod device flexibly connect.
3. the interlocking indicating device of switching manipulation according to claim 1 interlocking device; It is characterized in that: be connected with the interlock push pedal on the described joystick; This interlock push pedal is connected with circuit breaker interlocking device, and this circuit breaker interlocking device comprises interlock plate and circuit breaker interlock plate, and the circuit breaker interlock plate withstands the interlock plate; The interlock plate is provided with a spacer pin, and spacer pin one side is located in the interlock push pedal.
4. the interlocking indicating device of switching manipulation according to claim 3 interlocking device; It is characterized in that: described interlock push pedal is provided with an oblique shoulder; Described spacer pin is positioned at more than the shoulder, and described interlock plate has one group of auxiliary switch that is used for status signal output.
5. the interlocking indicating device of switching manipulation according to claim 1 interlocking device is characterized in that: described joystick stretches out that mechanism case is external to be connected with rotating parts, and the joystick end is provided with a plug; Rotating parts is provided with a slot; Plug is arranged in the slot, and rotating parts is provided with a screw rod, and screw rod is connected with plug through torsion spring; Also be provided with a boss on the rotating parts, this boss cooperates with location mating holes on the panel.
6. according to each described earthed switch operation interlocking gear of claim 1, it is characterized in that: described joystick is provided with a hole or recess.
CN201210209929.6A 2012-06-21 2012-06-21 Interlocking indication device of switch operation interlocking mechanism Expired - Fee Related CN102737876B (en)

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Application Number Priority Date Filing Date Title
CN201210209929.6A CN102737876B (en) 2012-06-21 2012-06-21 Interlocking indication device of switch operation interlocking mechanism

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Application Number Priority Date Filing Date Title
CN201210209929.6A CN102737876B (en) 2012-06-21 2012-06-21 Interlocking indication device of switch operation interlocking mechanism

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CN102737876A true CN102737876A (en) 2012-10-17
CN102737876B CN102737876B (en) 2014-10-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377057A (en) * 2014-11-13 2015-02-25 无锡江南奕帆电力传动科技股份有限公司 Breaker position indication device beneficial to observation
CN108630474A (en) * 2018-07-02 2018-10-09 河南华盛隆源电气有限公司 The interlocking mechanism of breaker and disconnecting switch
CN116959901A (en) * 2023-08-15 2023-10-27 广州亿盛电气科技有限公司 Door closing operation interlocking mechanism of switch cabinet, use method and inflatable switch cabinet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2344859Y (en) * 1998-03-03 1999-10-20 宁波天安(集团)股份有限公司 Five protection operating interlocking mechanism
CN102005320A (en) * 2010-12-02 2011-04-06 天水长城开关厂有限公司 Interlocking device between electric grounding switch and circuit breaker
CN202003870U (en) * 2011-04-11 2011-10-05 福州天宇电气股份有限公司 Interlocking device capable of preventing grounding switch from false switching
CN202796548U (en) * 2012-06-21 2013-03-13 江苏华冠电器集团有限公司 Interlocking indicating device for switching operation interlocking mechanism

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2344859Y (en) * 1998-03-03 1999-10-20 宁波天安(集团)股份有限公司 Five protection operating interlocking mechanism
CN102005320A (en) * 2010-12-02 2011-04-06 天水长城开关厂有限公司 Interlocking device between electric grounding switch and circuit breaker
CN202003870U (en) * 2011-04-11 2011-10-05 福州天宇电气股份有限公司 Interlocking device capable of preventing grounding switch from false switching
CN202796548U (en) * 2012-06-21 2013-03-13 江苏华冠电器集团有限公司 Interlocking indicating device for switching operation interlocking mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104377057A (en) * 2014-11-13 2015-02-25 无锡江南奕帆电力传动科技股份有限公司 Breaker position indication device beneficial to observation
CN104377057B (en) * 2014-11-13 2017-05-10 无锡江南奕帆电力传动科技股份有限公司 Breaker position indication device beneficial to observation
CN108630474A (en) * 2018-07-02 2018-10-09 河南华盛隆源电气有限公司 The interlocking mechanism of breaker and disconnecting switch
CN116959901A (en) * 2023-08-15 2023-10-27 广州亿盛电气科技有限公司 Door closing operation interlocking mechanism of switch cabinet, use method and inflatable switch cabinet

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Address after: 213000, Jiangsu, Changzhou Province, North District, Luo town, Tang Zhuang Road, No. 2 Bridge

Patentee after: JIANGSU HUAGUAN ELECTRICAL EQUIPMENT GROUP Co.,Ltd.

Address before: 213000, No. 218, Taishan Road, Xinbei hi tech Development Zone, Jiangsu, Changzhou

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