CN103701058A - Switch cabinet cable chamber door interlocking device - Google Patents
Switch cabinet cable chamber door interlocking device Download PDFInfo
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- CN103701058A CN103701058A CN201410007822.2A CN201410007822A CN103701058A CN 103701058 A CN103701058 A CN 103701058A CN 201410007822 A CN201410007822 A CN 201410007822A CN 103701058 A CN103701058 A CN 103701058A
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Abstract
The invention relates to a switch cabinet cable chamber door interlocking device, which consists of a front door assembly and a rear door assembly, wherein a state rope and an opening and closing rope are arranged between the front door assembly and the rear door assembly, wherein the state rope is connected with a slider latch, a front door press key and a rear door press key, the opening and closing rope is connected with a front door latch and a rear door latch, the front door press key is connected with the slider latch and drives the slider latch to move, the rear door assembly is connected with the slider latch and drives the slider latch to move, the stroke of the front door press key driving the slider latch or the stroke of the rear door press key driving the slider latch is not enough to enable the slider latch to relieve the locking for an earthing knife-switch, and the stroke of the front door press key driving the slider latch and the stroke of the rear door press key driving the slider latch are enough to enable the slider latch to relieve the locking for the earthing knife-switch. According to the technical scheme, opening and closing of interlocking of the front door assembly and the rear door assembly are realized by the opening and closing rope, and interlocking of a front door and a rear door for the slider latch is realized by the state rope, so that the front door assembly and the rear door assembly are connected by a simple and effective method, and the goal of interlocking is achieved.
Description
Technical field
The present invention relates to the interlocking device of cabinet door, relate in particular to switch cubicle interlocking device for cable vault door.
Background technology
The High Voltage such as circuit breaker, separator electricity equipment is housed in middle-low voltage switch cabinet, and its voltage transmitting with ten thousand, be it serves to show the huge of electric energy that it transmits in power that kilovolt meter, its were transmitted.Therefore, when installation, maintenance, maintenance etc. relate to the practical operation that needs approach switch cabinet, for fear of get an electric shock injury or unexpected powering up, cause unnecessary consequence and heavy losses, in the industry switch cubicle is proposed to five anti-requirements, specific requirement is as follows:
1. prevent from dividing by mistake, closing circuit breaker.
2. prevent that on-load from dividing, closing isolating switch.
3. prevent from being with cable address (closing) earth connection (earthed switch).
4. prevent that line with ground (earthed switch) from closing circuit breaker (isolating switch).
5. prevent mistakenly entering charged chamber.
In order to reach five anti-requirements, people have designed multiple Wu Fang mechanism, wherein, the interlock of switch cubicle cable chamber door and genuine switch and handcart coordinate, and realize the requirement of " preventing with cable address (closing) earth connection (earthed switch) " and " preventing mistakenly entering charged chamber ".The interlock of existing switch cubicle cable chamber door is very complicated, and especially the interlock at Qianmen and back door is to realize by linkage, and number of parts is many, Installation and Debugging trouble.
In view of this, the invention provides a novel switch cubicle interlocking device for cable vault door.
Summary of the invention
The object of the present invention is to provide a kind of switch cubicle interlocking device for cable vault door, by simple and effective way, front door assembly and rear door assembly are coupled together, realize interlocking.
Another object of the present invention is to provide a kind of switch cubicle interlocking device for cable vault door, this interlock is simple in structure, and parts are few, are easy to production and processing, is convenient to assembling.
In order to reach above-mentioned purpose, technical scheme of the present invention is as follows.
Switch cubicle interlocking device for cable vault door, consists of front door assembly and rear door assembly, has state rope and open and close rope between front door assembly and rear door assembly; Front door assembly comprise front door frame, front latch, front knocker, Qianmen button, slide block door bolt, cutter slide block, door boit bracket, rear door assembly comprises rear door frame, rear bolt, rear knocker, back door button; Front door frame and door boit bracket are fixed on switch cubicle, front knocker is fixed on Qianmen, Qianmen button stretches out front door frame and abuts to Qianmen and buckle, slide block door bolt is locked in upper limit and lower limit through ground cutter slide block and by ground cutter slide block, ground cutter slide block is installed on front door frame and can moves up and down, front latch is installed on door boit bracket and can moves up and down, and front latch and front knocker fasten; Rear door frame is fixed on switch cubicle, and rear knocker is fixed on back door, and rear bolt is installed on rear door frame and can moves up and down, and rear bolt and rear knocker fasten, and back door button stretches out rear door frame and abuts to back door and buckle; Qianmen button, slide block door bolt, back door button and rear bolt have resetting device; State rope and keying rope form by rope sling and wire rope core, and wire rope core is nested in rope sling, can be in the reciprocating motion of rope sling energy; State rope connection sliding block door bolt, Qianmen button and back door button, open and close rope and connect front latch and rear bolt; The motion of movable slider door bolt is fastened and be with to Qianmen button connection sliding block with a bolt or latch; The motion of movable slider door bolt is fastened and be with to back door button connection sliding block with a bolt or latch; The stroke of Qianmen button band movable slider door bolt or the stroke deficiency of back door button band movable slider door bolt are so that slide block door bolt is removed the locking of cutter slide block over the ground; The stroke that the stroke of Qianmen button band movable slider door bolt adds back door button band movable slider door bolt is enough to make slide block door bolt to remove the locking of cutter slide block over the ground.
In another embodiment, its right-hand member of the rope sling of state rope abuts to Qianmen button, and its left end abuts to back door button; Its right-hand member connection sliding block door bolt of the wire rope core of state rope, door frame after its left end connects.
In another embodiment, its upper end of rope sling that opens and closes rope abuts to front latch, and its lower end abutment is to rear door frame; Open and close its upper end connection door bolt seat of wire rope core of rope, bolt after its lower end connects.
In another embodiment, on ground cutter slide block, there is the first lockhole and the second lockhole, the first lockhole locking upper limit, the second lockhole locking lower limit; Between the first lockhole and the second lockhole, there is chute, the width of chute is less than the width of the first lockhole and the first lockhole, slide block door bolt has narrow portion and wide portion, the width of slide block door bolt narrow portion is less than chute, the width that slide block is fastened wide portion with a bolt or latch is less than the first lockhole and the second lockhole and is greater than chute, the narrow portion of slide block door bolt is through ground cutter slide block and front door frame, thereby the first lockhole or the second lockhole can not pin through chute in the wide portion of slide block door bolt.
In another embodiment, the two ends of wire rope core have jut, and the wire rope core of state rope is by jut connection sliding block door bolt and rear door frame, and the wire rope core that opens and closes rope connects door boit bracket and rear bolt by jut.
In another embodiment, resetting device is one or more in spring reset mechanism, rubber resetting device, Pneumatic restoring mechanism.
Technical scheme of the present invention connects front door assembly and rear door assembly with rope.Slide block door bolt connects Qianmen button and back door button, slide block breech lock surely cutter slide block in upper limit and lower limit.The stroke deficiency of the stroke of Qianmen button band movable slider door bolt or back door button band movable slider door bolt is so that slide block door bolt is removed the locking of cutter slide block over the ground, guaranteed that slide block door bolt is locking ground cutter slide block all the time as long as Qianmen or back door are one of any not to be closed while putting in place.The stroke that the stroke of Qianmen button band movable slider door bolt adds back door button band movable slider door bolt is enough to make slide block door bolt to remove the locking of cutter slide block over the ground, makes to only have when Qianmen and back door all to close while putting in place, and slide block door bolt is just removed the locking of cutter slide block over the ground.After ground cutter slide block release, can move up and down, make ground knife switch axle through driving hole, so that spanner connects minute cutter that grounding knife switch axle completes cutter over the ground, closes cutter operation.
In switch cubicle, between ground cutter slide block and handcart, there is latch-up structure, this latch-up structure guarantees to only have and ground cutter slide block could be transformed to lower limit by upper limit during in test position when handcart; Equally, if ground cutter slide block does not return to upper limit, handcart is locked, cannot transform to service position (cannot be connected with busbar, in from electricity condition) by test position.In addition, front latch is connected with ground knife switch axle, and ground knife switch axle has cam, and local knife switch axle rotates to while closing cutter position, and this cam top departs from front knocker by front latch, removes the locking to Qianmen, opens Qianmen.
Adopt after technical solution of the present invention, when the Qianmen of switch cubicle cable vault or back door one of any during in opening, just mean that front latch and front knocker depart from; Also just meaning lands knife switch in closing cutter position; Also meaning lands knife switch axle once through driving hole (cutter slide block is once in lower limit), and handcart is in test position, and now cable vault, without electricity, can enter safely.When the Qianmen of switch cubicle cable vault or back door are during all in closed condition, just mean that front latch and front knocker fasten, just meaning lands knife switch in a minute cutter position, and handcart safely change trial position or work is position; Due to Qianmen and back door, all close, whether Bu Luan cable vault is charged, all cannot enter cable vault, guaranteed operating personnel's safety.
Technical scheme of the present invention realizes the interlocking opening and closing of front door assembly and rear door assembly with keying rope, with state rope, realize Qianmen and the back door interlocking to slide block door bolt, realize dexterously the object that by simple and effective way, front door assembly and rear door assembly is coupled together and realize interlocking.Technical scheme of the present invention is simple in structure, and parts are few, is easy to processing, is convenient to assembling.
Accompanying drawing explanation
Fig. 1 is the front perspective view of the embodiment of the present invention;
Fig. 2 is the front perspective view of the front door assembly of the embodiment of the present invention;
Fig. 3 is the rear perspective view of the front door assembly of the embodiment of the present invention;
Fig. 4 is the right side parallax stereogram of the rear door assembly of the embodiment of the present invention;
Fig. 5 is the left side parallax stereogram of the rear door assembly of the embodiment of the present invention;
Fig. 6 is the rear door assembly door opening state stereogram of the embodiment of the present invention;
Fig. 7 is the front door assembly door opening state stereogram of the embodiment of the present invention.
Description of reference numerals:
Open and close rope 20 rope sling 21 wire rope core 22 jut 23 front door frame 110 front latches 120
The chute 121 rope sling card 122 press section front knockers 130 of 123 buckling parts 124 are dodged hole 131
Button 140 back-moving spring 141 rope sling card 142 slide blocks in Qianmen are fastened 150 narrow portions 151 with a bolt or latch
The rear bolt 220 of the lug 163 driving hole rear door frame 210 rope sling card 211 of 164 door boit bracket 170
Rivet 42 rivets 43
Embodiment
In the mode of embodiment, the present invention will be further described below.
As shown in Figure 1.Switch cubicle interlocking device for cable vault door, consists of front door assembly 100 and rear door assembly 200, has state rope 10 and open and close rope 20 between front door assembly 100 and rear door assembly 200; Front door assembly 100 comprise front door frame 110, front latch 120, front knocker 130, Qianmen button 140, slide block door bolt 150, cutter slide block 160, door boit bracket 170, rear door assembly 200 comprises rear door frame 210, rear bolt 220, rear knocker 230, back door button 240.
As shown in Figure 2, front door frame 110 and door boit bracket 170 are fixed on switch cubicle, front knocker 130 is fixed on Qianmen, Qianmen button 140 stretches out front door frame 110 and abuts on front knocker 130, slide block door bolt 150 is through ground cutter slide block 160 and ground cutter slide block 160 is locked in to upper limit and lower limit, and ground cutter slide block 160 is installed on front door frame 110 and can be moved up and down by rivet 41.As shown in Figure 3, front latch 120 is installed on door boit bracket 170 and can be moved up and down by rivet 42,43, and front latch 120 has buckling parts 124 energy and front knocker 130 fastens.
As shown in Figure 4, Figure 5, rear door frame 210 is fixed on switch cubicle, rear knocker 230 is fixed on back door, rear bolt 220 is installed on rear door frame 210 and can moves up and down, rear bolt 220 have buckling parts 231 can and rear knocker 230 fastenings, back door button 240 stretches out on the pushing surface 232 that rear door frame 210 abuts to rear knocker 230.
The Qianmen button 140 of the present embodiment, slide block door bolt 150, back door button 240 and rear bolt 220 have spring reset mechanism.As shown in Figure 5, back-moving spring 222 one end abut on rear door frame 210, and the other end abuts on rear bolt 220, gives the trend that rear bolt 220 moves downward.As shown in Figure 5, back-moving spring 242 one end abut on rear door frame 210, and the other end abuts on back door button 240, give the trend of back door button 240 to left movement.As shown in Figure 3, back-moving spring 141 one end abut on front door frame 110, and the other end abuts on Qianmen button 140, gives the trend that Qianmen button 140 moves right.As shown in Figure 3, back-moving spring 153 one end abut on front door frame 110, and the other end abuts on slide block door bolt 150, give slide block door bolt 150 trend that move right.
State rope 10 connection sliding block door bolts 150, Qianmen button 140 and back door button 240.As shown in Figure 2, Figure 4 shows, rope sling 11 its right-hand members of state rope 10 abut on the rope sling card 142 of Qianmen button 140, and its left end abuts on the rope sling card 241 of back door button 240; Wire rope core 11 its right-hand members of state rope 10 have jut 13, by jut 13 connection sliding block door bolts 150; Wire rope core 11 its left ends of state rope 10 have jut, by this jut, are connected on rear door frame 210.When Qianmen button 140 is pressed, Qianmen button 140 drives rope sling 11 to left movement, and tension rope 10 now, because state rope 10 tightens up, will pull slide block door bolt 150 to left movement.If be only that Qianmen button 140 is pressed completely, slide block door bolt 150 is by one section of stroke identical with Qianmen button 140 of left movement, but this section of stroke is not enough to the narrow portion 151 of slide block door bolt 150 to expose ground cutter slide block 160, ground cutter slide block 160 continues by wide portion 152 lockings of slide block door bolt 150.When back door button 240 is pressed, back door button 240 drives rope sling 11 to move right, and tension rope 10 now, because state rope 10 tightens up, will pull slide block door bolt 150 to left movement.If be only that back door button 240 is pressed completely, slide block door bolt 150 is to one section of stroke identical with back door button 240 of left movement, but this section of stroke is not enough to the narrow portion 151 of slide block door bolt 150 to expose ground cutter slide block 160, ground cutter slide block 160 continues by wide portion 152 lockings of slide block door bolt 150.If Qianmen button 140 and back door button 240 are all pressed completely, slide block door bolt 150 total kilometres to left movement equal Qianmen button 140 or back door button 240 independent roles in the stroke sum of slide block door bolt 150, these total kilometres can make the narrow portion 151 of slide block door bolt 150 expose ground cutter slide block 160, and slide block door bolt 150 is removed the locking of cutter slide block 160 over the ground.
As shown in Figure 2, Figure 4 shows, rope sling 21 its upper ends that open and close rope 20 abut on the rope sling card 122 of front latch 120, and its lower end abutment is to the rope sling card 211 of rear door frame 210; Wire rope core 22 upper ends that open and close rope 20 have jut 23, and jut 23 abuts on door boit bracket 170; Wire rope core 22 lower ends that open and close rope 20 have jut, bolt 220 after this jut connects.Local knife switch is when closing cutter position, and the cam on ground knife switch axle 30 is pressed the press section 123 of front latch 120, and front latch 120 is moved downward, and front fastens that to move downward be to drive rope sling 21 with a bolt or latch, and tension opens and closes rope 20.After keying rope 20 tightens up, pull rear bolt 220 to move upward, the lockings that rear bolt 220 is removed rear knocker 230.
As shown in Figure 6, Figure 7.Generally, switch cubicle cable chamber door is closed, and front knocker 130 is pressed Qianmen button 140 and put in place, and rear knocker 230 is pressed back door button 240 and put in place, and the wide portion 152 of slide block door bolt 150 exposes ground cutter slide block 160 and removes the locking of cutter slide block 160 over the ground.The front handcart of ground knife switch that closes has transformed to test position, remove the locking of cutter slide block 160 over the ground, the lug 163 that now can press ground cutter slide block 160 moves down genuine slide block, allow ground knife switch axle 30 pass completely through spanner 164 holes, side by side the second lockhole 162 of cutter slide block 160 is aimed at slide block door bolt 150.After insertion spanner 164, knife switch axle 30 makes ground knife switch in closing cutter position rotationally, at this moment the cam on knife switch axle 30 is pressed the press section 123 on front latch 120, front latch 120 moves down, and buckling parts 124 and front knocker 130 depart from fastening, and Qianmen can be opened.Front latch 120 drives the rope sling that opens and closes rope 20 to move down simultaneously, i.e. tension opens and closes rope 20, so after rear door assembly 200 these sides keying ropes 20 tighten up, its wire rope core pulls on rear bolt 220 and moves, rear bolt 220 and rear knocker 230 depart from fastening, and back door can be opened.
When the one of any of Qianmen or back door is opened, be that the one of any of Qianmen button 140 or back door button 240 do not pressed while putting in place, as above-mentioned, ground cutter slide block 160 can not expose in the wide portion 152 of slide block door bolt 150, cutter slide block 160 is by 150 lockings of slide block door bolt, and cutter slide block 160 movably now can not mobile handcart, guaranteed that cable vault, in from electricity condition, can enter safely cable vault.
When Qianmen and back door are all closed and put in place, be on front latch 120, to move with front knocker 130 to fasten, ground knife switch transforms to a minute cutter position by closing cutter position, Qianmen button 140 and back door button 240 are all pressed and are put in place simultaneously, as mentioned above, the wide portion 152 of slide block door bolt 150 exposes ground cutter slide block 160 completely, cutter slide block 160 is not by 150 lockings of slide block door bolt, now map function is done in cutter slide block 160 rival car positions movably, because ground knife switch is in a minute cutter position, cable chamber door is also closed, and handcart can transform to service position by test position safely.
The switch cubicle interlocking device for cable vault door of the present embodiment, can guarantee that cable chamber door is when opening, handcart must be in test position, and ground knife switch must be in closing cutter position, be that cable vault must be in from electricity condition, operating personnel can safety inspection cable vault.The switch cubicle interlocking device for cable vault door of the present embodiment, can also guarantee that knife switch cable chamber door when dividing cutter position in ground must close, and operating personnel cannot enter cable vault; And handcart only during in minute cutter position, just can have test position to transform to service position at ground knife switch.The switch cubicle interlocking device for cable vault door of the present embodiment meets two requirements of " preventing with cable address (closing) earth connection (earthed switch) " and " preventing mistakenly entering charged chamber " in five anti-requirements simultaneously.
By the description of above-described embodiment, be enough to illustrate that switch cubicle interlocking device for cable vault door of the present invention utilizes rope by front door assembly 100 and the ingenious connection of rear door assembly 200, realize the interlock at Qianmen and back door, guarantee that ground cutter slide block 160 only all closes while putting in place and be just unlocked at front/rear door, it is simple in structure, and parts are few, reliable operation, be easy to production and processing, be convenient to assembling.
Above-described embodiment is only for demonstration of the present invention is described; and unrestricted the present invention's spirit; the ornamental modification that those of ordinary skill in the art makes under the guidance of above-described embodiment and replacement all should be regarded as and not depart from category of the present invention, and protection scope of the present invention is as the criterion and is not restricted to the described embodiments with claims.
Claims (6)
1. switch cubicle interlocking device for cable vault door, consists of front door assembly and rear door assembly, it is characterized in that: between front door assembly and rear door assembly, have state rope and open and close rope; Front door assembly comprise front door frame, front latch, front knocker, Qianmen button, slide block door bolt, cutter slide block, door boit bracket, rear door assembly comprises rear door frame, rear bolt, rear knocker, back door button; Front door frame and door boit bracket are fixed on switch cubicle, front knocker is fixed on Qianmen, Qianmen button stretches out front door frame and abuts to Qianmen and buckle, slide block door bolt is locked in upper limit and lower limit through ground cutter slide block and by ground cutter slide block, ground cutter slide block is installed on front door frame and can moves up and down, front latch is installed on door boit bracket and can moves up and down, and front latch and front knocker fasten; Rear door frame is fixed on switch cubicle, and rear knocker is fixed on back door, and rear bolt is installed on rear door frame and can moves up and down, and rear bolt and rear knocker fasten, and back door button stretches out rear door frame and abuts to back door and buckle; Qianmen button, slide block door bolt, back door button and rear bolt have resetting device; State rope and keying rope form by rope sling and wire rope core, and wire rope core is nested in rope sling, can be in the reciprocating motion of rope sling energy; State rope connection sliding block door bolt, Qianmen button and back door button, open and close rope and connect front latch and rear bolt; The motion of movable slider door bolt is fastened and be with to Qianmen button connection sliding block with a bolt or latch; The motion of movable slider door bolt is fastened and be with to back door button connection sliding block with a bolt or latch; The stroke of Qianmen button band movable slider door bolt or the stroke deficiency of back door button band movable slider door bolt are so that slide block door bolt is removed the locking of cutter slide block over the ground; The stroke that the stroke of Qianmen button band movable slider door bolt adds back door button band movable slider door bolt is enough to make slide block door bolt to remove the locking of cutter slide block over the ground.
2. the device of claim 1, is characterized in that: its right-hand member of the rope sling of state rope abuts to Qianmen button, and its left end abuts to back door button; Its right-hand member connection sliding block door bolt of the wire rope core of state rope, door frame after its left end connects.
3. the device of claim 1, is characterized in that: its upper end of rope sling that opens and closes rope abuts to front latch, and its lower end abutment is to rear door frame; Open and close its upper end connection door bolt seat of wire rope core of rope, bolt after its lower end connects.
4. the device of claim 1, is characterized in that: on ground cutter slide block, have the first lockhole and the second lockhole, the first lockhole locking upper limit, the second lockhole locking lower limit; Between the first lockhole and the second lockhole, there is chute, the width of chute is less than the width of the first lockhole and the first lockhole, slide block door bolt has narrow portion and wide portion, the width of slide block door bolt narrow portion is less than chute, the width that slide block is fastened wide portion with a bolt or latch is less than the first lockhole and the second lockhole and is greater than chute, the narrow portion of slide block door bolt is through ground cutter slide block and front door frame, thereby the first lockhole or the second lockhole can not pin through chute in the wide portion of slide block door bolt.
5. the device of claim 1, is characterized in that: the two ends of wire rope core have jut, and the wire rope core of state rope is by jut connection sliding block door bolt and rear door frame, and the wire rope core that opens and closes rope connects door boit bracket and rear bolt by jut.
6. the method for claim 1, is characterized in that: resetting device is one or more in spring reset mechanism, rubber resetting device, Pneumatic restoring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007822.2A CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007822.2A CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103701058A true CN103701058A (en) | 2014-04-02 |
| CN103701058B CN103701058B (en) | 2015-12-02 |
Family
ID=50362503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007822.2A Active CN103701058B (en) | 2014-01-08 | 2014-01-08 | Switch cubicle interlocking device for cable vault door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103701058B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509835A (en) * | 2020-09-25 | 2021-03-16 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
| CN113839332A (en) * | 2021-07-12 | 2021-12-24 | 广州白云电器设备股份有限公司 | Switch cabinet with handcart and back door in two-way interlocking |
| CN113839332B (en) * | 2021-07-12 | 2024-05-10 | 广州白云电器设备股份有限公司 | Switch cabinet with bidirectional interlocking handcart and rear door |
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| CN201656314U (en) * | 2009-12-14 | 2010-11-24 | 厦门明翰电气有限公司 | Manual-switching-prevention mechanical locking device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174503A (en) * | 1987-05-15 | 1988-07-19 | 株式会社東芝 | Unit locking apparatus of control center |
| CN2042625U (en) * | 1988-10-12 | 1989-08-09 | 湖南省常德市第一开关厂 | Fault-operation protective latching device for flexible transmitting machinery |
| JPH0684434A (en) * | 1992-09-01 | 1994-03-25 | Mitsubishi Electric Corp | Interlocking device of circuit-breaker housing door |
| JPH09282968A (en) * | 1996-04-18 | 1997-10-31 | Nissin Electric Co Ltd | Locking device for opening and closing operating apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112509835A (en) * | 2020-09-25 | 2021-03-16 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
| CN112509835B (en) * | 2020-09-25 | 2023-03-31 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
| CN113839332A (en) * | 2021-07-12 | 2021-12-24 | 广州白云电器设备股份有限公司 | Switch cabinet with handcart and back door in two-way interlocking |
| CN113839332B (en) * | 2021-07-12 | 2024-05-10 | 广州白云电器设备股份有限公司 | Switch cabinet with bidirectional interlocking handcart and rear door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103701058B (en) | 2015-12-02 |
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